Monday, December 29, 2014

Magnesium absence diseases occur


Symptomatic magnesium absence due to low comestible assimilation in otherwise-healthy humans is aberrant because the kidneys absolute urinary elimination of this mineral . However, frequently low intakes or boundless losses of magnesium due to assertive bloom conditions, abiding alcoholism, and/or the use of assertive medications can advance to magnesium deficiency.
Early signs of magnesium absence cover accident of appetite, nausea, vomiting, fatigue, and weakness. As magnesium absence worsens, numbness, tingling, beef contractions and cramps, seizures, personality changes, aberrant affection rhythms, and coronary spasms can action . Astringent magnesium absence can aftereffect in hypocalcemia or hypokalemia (low serum calcium or potassium levels, respectively) because mineral homeostasis is disrupted.
Groups at Accident of Magnesium Inadequacy
Magnesium blemish can action if intakes abatement beneath the RDA but are aloft the bulk appropriate to anticipate apparent deficiency. The afterward groups are added acceptable than others to be at accident of magnesium blemish because they about absorb bereft amounts or they accept medical ambit (or crop medications) that abate magnesium assimilation from the gut or access losses from the body.
People with gastrointestinal diseases
The abiding diarrhea and fat malabsorption consistent from Crohn's disease, gluten-sensitive enteropathy (celiac disease), and bounded enteritis can advance to magnesium afire over time . Resection or bypass of the baby intestine, abnormally the ileum, about leads to malabsorption and magnesium loss.
People with blazon 2 diabetes
Magnesium deficits and added urinary magnesium elimination can action in humans with insulin attrition and/or blazon 2 diabetes . The magnesium accident appears to be accessory to college concentrations of glucose in the branch that access urine achievement .
People with booze dependence
Magnesium absence is accepted in humans with abiding alcoholism. In these individuals, poor comestible assimilation and comestible status; gastrointestinal problems, including vomiting, diarrhea, and steatorrhea (fatty stools) consistent from pancreatitis; renal dysfunction with antithesis elimination of magnesium into the urine; phosphate depletion; vitamin D deficiency; astute alcoholic ketoacidosis; and hyperaldosteronism accessory to alarmist ache can all accord to decreased magnesium cachet .
Older adults
Older adults accept lower comestible intakes of magnesium than adolescent adults. In addition, magnesium assimilation from the gut decreases and renal magnesium elimination increases with age. Earlier adults are aswell added acceptable to accept abiding diseases or crop medications that adapt magnesium status, which can access their accident of magnesium afire .
from:Magnesium Metal

Wednesday, December 24, 2014

Definition of the Tellurium Element


A brittle, silvery-white brownish aspect usually begin in aggregate with Gold and added metals. If austere in air tellurium has a greenish-blue blaze and forms tellurium dioxide as a result.
Tellurium is artless by baptize or hydrochloric acid, but dissolves in nitric acid. It is produced commercially as a by-product of the electrolytic adorning of Chestnut and acclimated to admixture stainless animate and Lead, in ceramics, and, in the anatomy of bismuth telluride, in thermoelectric devices. The Diminutive Bulk of this aspect is 52 and the Aspect Symbol is Te.
The Backdrop of the Tellurium Element
Name of Aspect : Tellurium
Symbol of Aspect : Te
Atomic Bulk of Tellurium : 52
Atomic Mass: 127.6 amu
Melting Point: 449.5 °C - 722.65 °K
Boiling Point: 989.8 °C - 1262.95 °K
Number of Protons/Electrons in Tellurium : 52
Number of Neutrons in Tellurium : 76
from:Tellurium metal

Monday, December 22, 2014

Copper applications in industry


Copper is usually activate in attributes in affiliation with sulfur. Authentic Copper metal is about produced from a multistage process, alpha with the mining and apperception of low-grade ores absolute Copper sulfide minerals, and followed by admixture and electrolytic adorning to aftermath a authentic Copper cathode. An accretion allotment of Copper is produced from acerbic leaching of breakable ores. Copper is one of the oldest metals anytime acclimated and has been one of the important abstracts in the development of civilization. Because of its properties, abnormally or in combination, of top ductility, malleability, and thermal and electrical conductivity, and its attrition to corrosion, Copper has become a above automated metal, baronial third afterwards adamant and aluminum in agreement of quantities consumed. Electrical uses of copper, including adeptness manual and generation, architecture wiring, telecommunication, and electrical and cyberbanking products, annual for about three abode of absolute Copper use. Architecture architecture is the individual bigger market, followed by electronics and cyberbanking products, transportation, automated machinery, and customer and accepted products. Copper byproducts from accomplishment and anachronistic Copper articles are readily recycled and accord decidedly to Copper supply.
from:Copper Metals

Wednesday, December 17, 2014

Overview of Tellurium


Appearance
A semi-metal usually acquired as a blah powder.
Uses
Tellurium is acclimated in alloys, mostly with chestnut and stainless steel, to advance their machinability. If added to advance it makes it added aggressive to acids and improves its backbone and hardness.
Tellurium has been acclimated to vulcanise rubber, to casting bottle and ceramics, in solar cells, in rewritable CDs and DVDs and as a agitator in oil refining. It can be benumbed with silver, gold, chestnut or tin in semiconductor applications.
Biological role
Tellurium has no accepted biological role. It is actual baneful and teratogenic (disturbs the development of an antecedent or foetus). Workers credible to actual baby quantities of tellurium in the air advance ‘tellurium breath’, which has a garlic-like odour.
Natural abundance
Tellurium is present in the Earth’s band abandoned in about 0.001 locations per million. Tellurium minerals cover calaverite, sylvanite and tellurite. It is aswell begin absolute in nature, but abandoned actual rarely. It is acquired commercially from the anode muds produced during the electrolytic adorning of copper. These accommodate up to about 8% tellurium.
from:Tellurium metal

Monday, December 15, 2014

Precious metal adorning process


Precious metals adorning is a address acclimated to absolve Precious metals. There are several altered methods for adorning Precious metals, but the two capital methods are pyrometallurgy, which involves heating, and hydrometallurgy, which involves abandoning the metals into a solvent. After purification, the metals are bankrupt to complete the adorning process.
Preparing for Precious metals adorning generally involves demography a sample of the metal to be aesthetic and creating an assay. During sampling, the metal is weighed, measured, and broiled into a liquid, and again samples are taken. Usually one sample is retained by the adorning accession and accession is accustomed to the customer. After sampling, an appraisal is run to actuate the exact amounts and concentrations of the Precious metals and algae to be removed.
Once the sample and appraisal are performed the Precious metals adorning action can begin, usually through pyrometallurgy or hydrometallurgy. During pyrometallurgy, the metal is acrimonious and broiled to abstracted the assorted impurities. In some metal processing, a anatomy of gas will be acclimated to balloon through the broiled metal, and either the targeted Precious metals or the algae will oxidize, alteration bendability to acquiesce for removal. In some cases, the algae and the Precious metals cook at decidedly altered temperatures, which allows for simple break by concrete means.
from:Rare Metals

Sunday, December 7, 2014

Overview of Galarubicin hydrochloride


Galarubicin hydrochloride has greater efficacy and less toxicity than dox- orubicin.And toxicity of DA-125 in advanced non-small-cell lung cancer (NSCLC).
Name:Galarubicin hydrochloride
Molecular Weight:670.04781
Molecular Formula:C30H33ClFNO13
CAS: 140637-82-7
Activity and Mechanism:
Antibiotics and Alkaloids, Antineoplastic Antibiotics, Chemical Delivery Systems, DRUG DELIVERY, Drug Delivery Systems, Leukemia Therapy, ONCOLYTIC DRUGS, Anthracyclines

Tuesday, December 2, 2014

about N-methyl-4-piperidone


NAME :N-methyl-4-piperidone
CAS NO.: 1445-73-4
SYNONYMS: 1-Méthyl-4-pipéridone;
1-Methyltetrahydropyridin
MOLECULAR FORMULA :C6H11NO
REFRACTIVE INDEX :1.460 - 1.462
MOLECULAR WEIGHT :113.16
APPEARANCE: yellowish liquid
SOLUBILITY: Miscible
BOILING  POINT :55 - 58 C at 10 mmHg
FLASH POINT : 58 C
Storage: Store at room temperature
N-Methyl-4-piperidone was used to prepare N,N’-dimethylbispidinone by utilizing a double Mannich condensation method.
from:Acridine Raw Material

Sunday, November 30, 2014

Methylprednisolone is An apoptosis inducer


Methylprednisolone is a 6α-methyl derivative of prednisolone, a variation which reduces its binding to corticosteroid-binding globulin and increases penetration into target tissues.It alters gene expression, like prednisolone, through both the glucocorticoid and mineralocorticoid receptors.
Application; An apoptosis inducer
CAS Number: 83-43-2
Molecular weight: 374.47
Molecular formula: C22H30O5
Appearance: Crystalline powder
Solid state physics
Solubility: Soluble in acetone, chloroform
Storage: Store at room temperature

Monday, November 24, 2014

properties of Ruthenium(IV) oxide hydrate


CAS  : 32740-79-7
name:Ruthenium(IV) oxide hydrate
Molecular Weight: 133.07 (anhydrous basis)
Molecular Formula: RuO2•xH2O
Appearance: Powder
Physical State: Solid
Storage: Store at room temperature
Solubility: Insoluble in water. Soluble in HCl

Monday, November 17, 2014

Brief introduction of Palladium(II) chloride


name: Palladium(II) chloride
CAS : 7647-10-1
Purity: ≥99%
Molecular Weight: 177.33
Molecular Formula: Cl2Pd
This is used in the synthesis of semiconducting metal-containing polymers where the polypyrrole backbone has a conformational energy minimum and is nearly planar.
Appearance: Powder
Physical State: Solid
Solubility: Soluble in water, acetone, alcohol, hydrobromic acid, and hydrochloric acid.
Storage: Store at room temperature
Melting Point: 678-680 °C (lit.)
Boiling Point: 515.63 °C (Predicted)
Density: 4 g/cm3 at 25 °C

Wednesday, November 12, 2014

Application of cesium carbonate


cesium carbonate is a white apparent solid compound. Caesium carbonate has a top solubility in arctic solvents such as water, booze and DMF. Its solubility is college in amoebic solvents compared to added carbonates like potassium and sodium carbonates, although it charcoal absolutely baffling in added amoebic solvents such as toluene, p-xylene, and chlorobenzene. This admixture is acclimated in amoebic amalgam as a base. It aswell appears to accept applications in action conversion.
Promotes the able O-alkylation of alcohols to anatomy alloyed alkyl carbonates.
An adorable abject that finds added and added applications in coupling chemistry.1
Catalyst for:
Aerobic blaze of primary alcohols2
1,4-addition3
Reagent for:
Synthesis of phosphazene derivatives4
Constrictive bounden interactions5
Intramolecular C-N cantankerous coupling reactions6
Dehydohalogenative polycondensation7

Monday, November 10, 2014

Property of Dierbium trioxide


Formula as about written: Er2O3
Hill arrangement formula: Er2O3
CAS anthology number: [12061-16-4]
Formula weight: 382.518
Class: oxide
Synonyms:
dierbium trioxide
erbium(III) oxide
erbium oxide
Colour: pink
Appearance: solid
Melting point: 2418°C
Boiling point:
Density: 8640 kg m-3

Wednesday, November 5, 2014

Brief introduction of Europium (III) acetate hydrate


name:Europium (III) acetate hydrate
CAS Number: 62667-64-5
MDL Number: MFCD00150115
Molecular Formula: C6H9EuO6
Molecular Weight: 329.10
Chemical Formula: Eu(OOCCH3)3•XH2O
Color and Form: white xtl.
EINECS Number: none
Chemical Family: metal acetate salt
Synonym: Europium triacetate; Acetic acid, europium(+3) salt, hydrate

Monday, November 3, 2014

what is the Praseodymium trifluoride?


The praseodymium in praseodymium trifluoride formally is in the oxidation state 3.
name:Praseodymium trifluoride
Formula as often written: PrF3
Hill system formula: F3Pr1
CAS    : [13709-46-1]
Formula weight: 197.903
Class: fluoride
Synonyms:
praseodymium trifluoride
praseodymium(III) fluoride
praseodymium fluoride
Physical properties
Colour: green
Appearance: crystalline solid
Melting point: 1395°C
Density: 6300 kg m-3

Wednesday, October 29, 2014

Introduction and Purpose of Yttrium


Yttrium is almost always found combined with the lanthanides in rare earth minerals and is never found in nature as a free element.
The most important use of yttrium is in making phosphors, such as the red ones used in television set cathode ray tube (CRT) displays and in LEDs. It is also used in the production of electrodes, electrolytes, electronic filters, lasers and superconductors; various medical applications; and the tracing of various materials to enhance their properties. Yttrium has no known biological role, and exposure to yttrium compounds can cause lung disease in humans.
Although metallic yttrium is not widely used, several of its compounds are. Yttrium oxide (Y2O3) and yttrium orthovanadate (YVO4) are both combined with europium to produce the red phosphor used in color televisions. Garnets made from yttrium and iron (Y3Fe5O12) are used as microwave filters in microwave communications equipment. Garnets made from yttrium and aluminum (Y3Al5O12) are used in jewelry as simulated diamond.

Monday, October 27, 2014

Beryllium applications in industry


Beryllium is a Group 2 (IIA) element. It is a metal and has a high melting point. At ordinary temperatures, beryllium resists oxidation in air. Beryllium compounds are very toxic. Its ability to scratch glass is probably due to the formation of a thin layer of the oxide. Aquamarine and emerald are precious forms of the mineral beryl,
Beryllium improves many physical properties when added as an alloying element to aluminium, copper (notably the alloy beryllium copper), iron and nickel. Tools made of beryllium copper alloys are strong and hard and do not create sparks when they strike a steel surface. In structural applications, the combination of high flexural rigidity, thermal stability, thermal conductivity and low density (1.85 times that of water) make beryllium metal a desirable aerospace material for aircraft components, missiles, spacecraft, and satellites. Because of its low density and atomic mass, beryllium is relatively transparent to X-rays and other forms of ionizing radiation; therefore, it is the most common window material for X-ray equipment and components of particle physics experiments. The high thermal conductivities of beryllium and beryllium oxide have led to their use in thermal management applications.
The commercial use of beryllium requires the use of appropriate dust control equipment and industrial controls at all times because of the toxicity of inhaled beryllium-containing dusts that can cause a chronic life-threatening allergic disease in some people called berylliosis.

Wednesday, October 22, 2014

What aspects charge to use ferrovanadium


Ferrovanadium is An admixture of adamant and up to 55% vanadium; acclimated in the accomplish of specialist steel
The better activated appliance of Ferrovanadium is in the alloying activity of any accustomed steel. That animate is then, in turn, acclimated in gears, axles, crankshafts, bike frames and added awful analytical animate components. Ferrovanadium forms abiding carbides and nitrides that will aftereffect in a cogent access in strength. High-carbon animate alloys (HSS) with a vanadium agreeable ambit of 1%-5% is acclimated for accelerated apparatus steels as able-bodied as in surgical accoutrement and instruments. Ferrovanadium aswell stabilises the beta anatomy of titanium, which in about-face increases the temperature adherence of titanium. Adulterated with aluminium in titanium alloys, Ferrovanadium is aswell acclimated in accelerated airframes and jet engines.
from:Rare Metals

Monday, October 20, 2014

Role of Manganese Chloride


Manganese Chloride is an accomplished baptize acrid credible Manganese antecedent for uses accordant with chlorides. Hydrate or anhydrous forms may be purchased. Chloride compounds can conduct electricity if alloyed or attenuated in water. Chloride abstracts can be addle by electrolysis to chlorine gas and the metal. They are formed through assorted chlorination processes whereby at atomic one chlorine anion (Cl-) is covalently affirmed to the accordant metal or cation. Ultra top abstention and proprietary formulations can be prepared. The chloride ion controls aqueous calm and pH levels in metabolic systems. They can anatomy either asleep or amoebic compounds. Manganese Chloride is about anon accessible in a lot of volumes.

Ultra top abstention and top abstention compositions advance both optical above and account as accurate standards. Nanoscale (See aswell Nanotechnology Advice and Quantum Dots) basal powders and suspensions, as another top credible breadth forms, may be considered. We aswell aftermath Manganese Chloride Solution. American Elements produces to abounding accepted grades if applicable, including Mil Spec (military grade); ACS, Reagent and Abstruse Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicative ASTM testing standards. Archetypal and custom packaging is available. Added technical, analysis and assurance (MSDS) advice is accessible as is a Advertence Calculator for converting accordant units of measurement.
more about:
All Heal Extract,All Heal Extract suppliers,All Heal Extract manufacturer

from:Rare Metals

Monday, October 13, 2014

Silicon dioxide is by itself present in a trace element


Silicondioxide,is a actinic admixture that is an oxide of silicon with the actinic blueprint SiO2. It has been accepted aback age-old times. Silica is a lot of frequently begin in attributes as quartz, as able-bodied as in assorted active organisms. Silica is one of the a lot of circuitous and a lot of abounding families of materials, absolute both as several minerals and getting produced synthetically. Notable examples cover adulterated quartz, crystal, fumed silica, silica gel, and aerogels. Applications ambit from structural abstracts to dent to apparatus acclimated in the aliment industry.
Silicon dioxide is a trace mineral begin by itself in abounding bulb foods and is added to abounding multivitamin supplements. It is all-important for advantageous bones, skin, hair and nails. Silicon dioxide is generally added to candy foods to accumulate them beginning and appetizing. You can acquisition the important mineral in foods sources.Foods to cover in your diet are:
1. Fruits        
Not generally mentioned in diet abstract is the actuality that abounding fruits are by itself top in silicon dioxide. The fruits accomplished in the mineral cover raisins, grapes, oranges, apples, cherries and plums.
2. Accomplished grains
Rice, oats and accomplished atom breads are top in silicon dioxide. Eating accomplished grains is an simple way to ample the circadian claim for this trace mineral.
3. Water
Normal bubbler baptize is a accessible antecedent of silicon dioxide. Harder baptize has college levels of the mineral than bendable water.
In accession to its use in food, there are aswell accomplishment uses for silicon dioxide. These include:
1. Electronics
Silicon dioxide has an acutely top melting point so is advantageous in electronics area top calefaction is produced. The mineral is capital for accomplishment cilia optic cables, semi-conductors, and insulation for wires.
2. Glass
Silica is one of the primary apparatus of glass. Mixed with soda and boron oxide, silicon dioxide creates bottle that is awful calefaction resistant. Thus, in accession to added bottle products, silicon dioxide is analytical in the conception of calefaction aggressive affable utensils.
3. Cement

Silicon dioxide is analytical in the assembly of cement. Adhesive is added to added capacity to accomplish accurate -- the architecture block of abundant of the world's infrastructure.
from:Rare Metals

Friday, October 10, 2014

Introduction of Human flagellin ELISA Kit

Flagellin is a protein that forms the flagella, or continued tail, in bacterial flagellum. Due to its accustomed atomic structure, flagellin arranges itself into a alveolate butt in a circling shape, which is capital to its function. In flagellated bacteria, flagellin is one of the a lot of accepted proteins in the cell. Mammals tend to accept a able allowed arrangement acknowledgment to flagellin back it's one of the a lot of accepted proteins in some disease-causing bacteria. In mammals, there is a specific T-cell receptor for flagellin. Bacteria, of course, acknowledge by aggravating to affected the response; some can about-face amid altered flagellin genes to try to ambush beastly allowed cells. Principle of the Assay: The microtiter bowl provided in this kit has been pre-coated with an antibiotic specific to flagellin. Standards or samples are again added to the adapted microtiter bowl wells with a biotin-conjugated antibiotic alertness specific for flagellin and Avidin conjugated to Horseradish Peroxidase (HRP) is added to anniversary microplate able-bodied and incubated. Again a TMB (3,3',5,5' tetramethyl-benzidine) substrate band-aid is added to anniversary well. Alone those wells that accommodate flagellin, biotin-conjugated antibiotic and enzyme-conjugated Avidin will display a change in color. The enzyme-substrate acknowledgment is concluded by the accession of a sulphuric acerbic band-aid and the blush change is abstinent spectrophotometrically at a amicableness of 450 nm +/- 2 nm. The absorption of flagellin in the samples is again bent by comparing the O.D. of the samples to the accepted curve.. This appraisal recognizes recombinant and accustomed animal flagellin. No cogent cross-reactivity or arrest was observed.

more about:
Human flagellin ELISA Kit prices
from:
Elisa assay kits


Tuesday, October 7, 2014

Introduction and characteristics accompanying to the Anti-BTG2


AliasesPC3, TIS21, B-cell about-face gene 2, NGF-inducible anti-proliferative protein PC3, assumption advance factor-inducible anti-proliferative, pheochromacytoma cell-3, protein BTG2
synthetic peptide agnate to a arena of animal BTG2 with an centralized ID of P04616
General description
BTG2 displays anti-proliferative furnishings and is analytical in the adjustment of the G1/S alteration in the corpuscle cycle. 1
Physical form
Lyophilized from PBS absorber with 2% sucrose.

The protein encoded by this gene is a affiliate of the BTG/Tob family. This ancestors has structurally accompanying proteins that arise to accept antiproliferative properties. This encoded protein is circuitous in the adjustment of the G1/S alteration of the corpuscle cycle. Protein BTG2 aswell accepted as BTG ancestors affiliate 2 or NGF-inducible anti-proliferative protein PC3 or NGF-inducible protein TIS21; is a protein that in bodies is encoded by the BTG2 gene (B-cell about-face gene 2) and in added mammals by the akin Btg2 gene. This protein controls corpuscle aeon progression and proneural genes announcement by acting as a archetype coregulator that enhances or inhibits the activity of archetype factors.

more about:
Anti-BTG2/TIS21(B-cell translocation gene 2) prices
from:
Elisa assay kits


Tuesday, September 23, 2014

Tocopheryl Nicotinate anatomic description


Brillian-KS32 is acquired from Tocopheryl Nicotinate. It can anon act on claret barge bank and arrest the cholesterin formation. It aswell can enhance claret apportionment and apathetic down the derma crumbling process. This artefact can be added into a lot of cosmetics, including atom articles and shampoos.
Tocopherol, Tocophersolan, Tocopheryl Acetate, Tocopheryl Linoleate, Tocopheryl Linoleate/Oleate, Tocopheryl Nicotinate, Tocopheryl Succinate, Dioleyl Tocopheryl Methylsilanol and Potassium Ascorbyl Tocopheryl Phosphate all action as antioxidants. Tocopherol, Tocopheryl Acetate, Tocopheryl Linoleate, Tocopheryl Linoleate/Oleate, Tocopheryl Nicotinate and Dioleyl Tocopheryl Methylsilanol aswell action as skin-conditioning agents - miscellaneous.
from:

Natural cosmetic ingredients

Monday, September 22, 2014

Determination of anti- NB1 acknowledgment GIF in GA

The neutrophil-specific NB antigen arrangement has been serologically characterized with beastly alloantisera. Two alleles, NB1 and NB2, accept been described. NB1 is bidding on a subpopulation of borderline claret neutrophils in 97 percent of advantageous donors. Beastly alloantibodies accept been acclimated to analyze the 58- to 64-kDa glycoprotein (GP) on which NB1 is located. NB1 can usually be detected by both a granulocyte immunofluorescence (GIF) appraisal and a granulocyte abutment (GA) assay, but neutrophils from some donors accept been begin to acknowledge with anti-NB1 in GIF but not in GA assays. To actuate if the closing neutrophils accurate NB1 and the agnate 58- to 64-kDa GP, these neutrophils were probed with aerial and beastly sera specific for NB1. First, the admeasurement of neutrophils that accurate NB1 was quantitated. Neutrophils from donors that typed as NB1-positive in both GA and GIF assays were analyzed by breeze cytometry with antisera to NB1. Beastly and aerial anti-NB1 reacted with 71 +/- 17 percent and 70 +/- 17 percent of neutrophils, respectively. There was no aberration in the announcement of NB1 in NB1-homozygous and NB1-heterozygous individuals. In contrast, decidedly beneath neutrophils from four donors that typed as NB1-positive in GIF appraisal but not GA appraisal reacted with beastly (27 +/- 12%; p < 0.001) and aerial (26 +/- 12%; p < 0.001) anti-NB1. If neutrophils from these aforementioned four donors were probed with aerial and beastly anti-NB1 by immunoblotting and immunoprecipitation, the 58- to 64-kDa GP was identified.

Friday, September 19, 2014

The capital role and anatomy of Endoglin

Endoglin is a 180 kDa homodimeric co-receptor for associates of the TGF-beta superfamily. It is bidding on the apparent of endothelial cells, subsets of cartilage bottom beef (erythroid corpuscle precursors) activated macrophages, fibroblasts, beastly chondrocytes and bland beef beef and profibrogenic alarmist cells.
A above role for endoglin is in acclimation transforming advance factor-beta-dependent vascular adjustment and angiogenesis. Endoglin announcement increases during angiogenesis, anguish healing, and inflammation, all of which are associated with TGFbeta signaling and alterations in vascular structure. Endoglin binds two isoforms of TGF-beta, TGF-beta 1 and TGF-beta 3 in aggregate with the signaling circuitous of TGFá receptors types I and II.

Proteolytic break of the extracellular breadth of endoglin gives acceleration to acrid CD105 (sCD105), which functions to abrogate TGF-beta signaling but enhances signalling pathways involving BMP7 and SMAD1, SMAD5.

Sunday, September 14, 2014

Specific binding of insulin-like growth factors 1 and 2 to the type 1 and type 2 receptors respectively


1. Competitive binding and receptor cross-linking experiments have been used to examine the receptor-ligand interactions between three bovine insulin-like growth factors (IGF) and monolayer cultures of myoblasts and fibroblasts. 2. Labelled IGF-2 bound predominantly to the type 2 receptor with negligible label cross-linked to the type 1 receptor, notwithstanding the ability of IGF-2 to compete effectively for the binding of IGF-1 to the type 1 receptor. Approx. 100-fold higher concentrations of IGF-1 or the N-terminal truncated (des-Gly-Pro-Glu) IGF-1 (-3N:IGF-1) were required to produce competition equivalent to IGF-2. 3. All IGF peptides, but especially IGF-1, enhanced the binding of labelled IGF-2 to the type 2 receptor of lung fibroblasts. This unusual effect was probably a consequence of the displacement of labelled IGF-2 otherwise bound to a medium protein, a conclusion supported by the demonstration of a 38 kDa membrane protein cross-linked to labelled IGF-2. 4. Both IGF-1 and -3N:IGF-1 bound only to the type 1 IGF receptor in L6 myoblasts, rat vascular smooth-muscle cells and human lung fibroblasts. The peptides competed for labelled IGF-1 binding with potencies in the order -3N:IGF-1 greater than IGF-1 greater than IGF-2 much greater than insulin. Since the IGF peptides were equipotent in skin fibroblasts, it was proposed that the apparently higher affinity of -3N:IGF-1 for receptors in the other cell types was instead a consequence of a low affinity of this peptide for the competing 38 kDa binding protein.

more about:
Bovine insulin-like growth factors 1,IGF-1 ELISA Kit suppliers
from:
Natural Herbal Extracts

Thursday, September 11, 2014

S100A1 structure


Like many other S100 proteins, S100A1 can exist as either a hetero or homodimer. Protein nuclear magnetic resonance spectroscopy structural information on the homodimeric form of this protein shows that each monomer is quite helical, and contains two EF-hand calcium-binding loops; an 'S100' EF hand in the N-terminus and a canonical EF-hand in the C-terminus. These domains are linked by a 'hinge' region, which exists as a random coil. Both EF-hands bind calcium, although the real EF-hand has a significantly higher affinity (with a dissociation constant of roughly 20 micromolar). The two calcium-binding regions neighbor each other in three dimensional space, and are connected to each other through a short beta sheet region (residues 27–29 and 68–70).
The S100A1 homodimer is high affinity (nanomolar range or tighter), and is formed through hydrophobic packing of an X-type 4-helix bundle created between helices 1, 1', 4, and 4'.
The most accurate high-resolution solution structure of human apo-S100A1 protein (PDB accession code: 2L0P) has been determined by means of NMR spectroscopy in 2011.

more about:
Anti-S-100A1 (S100 calcium-binding protein A1) prices
from:
Elisa assay kits

Tuesday, September 9, 2014

Ca2+ and Calmodulin Modulate DNA-Binding Activity of Maize Heat Shock Transcription Factor in Vitro


DNA-binding activity of a maize heat shock transcription factor (HSF) was induced by heat shock of a whole cell extract at 44°C. Addition of the calcium ion chelator EGTA reduced the binding of the HSF to heat shock element (HSE) in vitro. Re-addition of CaCl2 to the sample pretreated with EGTA restored the ability of the HSF to bind to DNA. DNA-binding activity of the HSF was also induced by directly adding CaCl2 to a whole cell extract at non-heat-shock temperature, but not by MgCl2. During HS at 44°C, calmodulin (CaM) antagonists chlorpromazine (CPZ) and N-(6-aminohexyl)-5-chloro-1-naphthalenesulfonamide (W7) inhibited DNA-binding activity of the HSF in a concentration-dependent manner, but N-(6-aminohexyl)-1-naphthalenesulfonamide (W5), an inactive structural analogue of W7, did not. Addition of antiserum specific to CaM reduced the binding of the HSF to HSE. Re-addition of CaM to the sample pretreated with antiserum could restore the binding activity of the HSF. DNA-binding activity of the HSF was promoted by directly adding CaM to a whole cell extract at 44°C, but not by BSA. Moreover, at non-heat-shock temperature, DNA-binding activity of the HSF was also induced by directly adding CaM to a whole cell extract, but not by BSA. Our observations further confirm the role of Ca2+ in activation of the HSF in plant and provide the first example of the role of CaM in regulation of DNA-binding activity of the HSF. These results suggest that Ca2+ and CaM are involved in HSP gene expression likely through regulating the activity of the HSF.

more about:
Anti-HSTF2/HSF2(Heat Shock Transcription Factor 2) prices
from:
Elisa assay kits

Friday, September 5, 2014

Functional components in flaxseed and their functions


Functional components, lignans, pigments & amyloses, linolenic acid (ALA),flax gum ,proteins, dietary  fibre, minerals and vitamins in flaxseed and their functions for health and daily life. The lignans can combine with estrogen receptor emuiously to disturb the growth of tumour caused by estrogen. Study reports proved that SDG has the effects of anti-tumour when consumed at the early stage of breast cancer, and as a kind of anti-oxidant, SDG also possesses the ability of inhibiting high cholesterol atherosclerosis. Pigments & amyloses are perfect natural clearing preparation of free group and what is more, they are cheaper, more efficient, and non-toxic & side-effects as well. Linolenic acid (ALA) and its metabolizing products have important and extensive physiological effects in immune system, generative system, heart & blood vessel system and incretion system in human body. As to flax gum, it has already been listed in the safety catalogs of codes of foods and drugs. In addition, there are still a lot of nutrient components, such as proteins, celluloses, vitamins and minerals, are provided with important physiological functions.
more about:
Flaxseed Extract suppliers
from:
Natural Herbal Extracts

Wednesday, September 3, 2014

Royal Jelly - pharmacological effects


After years of research at home and abroad, and medical clinical practice has proved that royal jelly has peculiar effect on human health, health care, etc.
(1) improve nutrition, supplementary brain: the royal jelly contains a lot of nutrients, regular consumption can improve the condition of malnutrition, loss of appetite, indigestion, treatment increased can make the person's physical, mental, emotional improved.
(2) improve human immunity, immune globulin is contained in royal jelly, can significantly improve human immunity, royal jelly after a period of time, people feel energetic obviously, reduces their chances of colds and other diseases.
(3) preventive treatment of disease of heart head blood-vessel, long-term use of royal jelly on three lipid abnormalities disease, vascular sclerosis, arrhythmia, diabetes and other diseases patients have good curative effect.
(4) the treatment of anemia: royal jelly contains synthesis of hemoglobin materials such as copper, iron, have strong hematopoietic system, make the bone marrow hematopoietic function such as excitement, has been used in clinical diseases such as auxiliary treatment of anaemia.
more about:
Royal Jelly suppliers
from:
Natural Herbal Extracts

Monday, September 1, 2014

The value of Adzuki bean


Efficacy:
1, adzuki bean has aperient, diuretic effect, have curative effect on heart disease and kidney disease.
2 a day, eat a moderate amount of adzuki bean can purify the blood, relieve fatigue heart.
3, can vent, purge, and can reduce cholesterol.
4, adzuki bean on staphylococcus aureus, shigella and salmonella typhi's blessing has obvious inhibitory effect.
Ingredients:
According to the 1479 test results of adzuki bean germplasm resources, the protein content of 22.56% on average, range of 20.92% ~ 20.92%;  fat 0.59%; The total starch 53.17%, of which 11.50% amylose. The human body essential amino acid composition of protein is full, but sulfur amino acid content is less, is the first restrictive amino acids. Grain eggs from the quality and the proportion of carbohydrates is about 1:2 ~ 2.5, the cereal is only 1:6 ~ 7. High content of adzuki bean protein content than animal products. Like lean pork protein was 16.7%, the beef is 17.7%, egg 14.7%, milk was 3.3%. Since the ancient times, many countries with adzuki bean prevention and cure.

more about:
Adzuki bean suppliers
from:
Natural Herbal Extracts


Thursday, August 28, 2014

Cordyceps Sinensis medicinal value



According to the analysis of medical science, Chinese caterpillar fungus with cordyceps acid in the body. Vitamin B12, fat, protein, etc. Chinese caterpillar fungus sex, WenPing, non-toxic, is famous as a nourishing and strong medicine, commonly used meat stews, tonify deficiency and health effect. Is suitable for the treatment of lung qi deficiency, and two virtual, such as tuberculosis hemoptysis caused by lung and kidney or blood in phlegm, cough. Shortness of breath, night sweats, etc, to the kidney impotence, the waist knee acid aches, etc also has a good curative effect, and high tonic.
Cordyceps Sinensis sexual flavour gan, wen. For the functions of strengthening lung and benefiting kidney, phlegm cough. Available to the chronic cough asthma, postpartum weakness, such as impotence cold "empty". According to the research: Cordyceps Sinensis mainly containing Cordyceps Sinensis, Cordyceps acid, adenosine and polysaccharide composition such as; Cordyceps Sinensis, can inhibit the growth of the bacteria such as streptococcus, druze coli bacillus anthracis, and anticancer active substances, to human body have good adjustment function of the endocrine system and nervous system; Acid can change body circulation, has the obvious fall hematic fat and cough expectorant effect; Cordyceps polysaccharide is immunity regulator, can strengthen the body resistance to virus and parasite.

more about:
Cordyceps Sinensis suppliers
from:
Natural Herbal Extracts



Tuesday, August 26, 2014

Reishi mushroom extract- Indications



1, restlessness, insomnia, palpitation. The taste of sweet natured, the Heart Sutra, can complement efforts, Yixin gas, peace of mind of God, it can cure the lack of blood, mind dystrophy caused by restlessness, insomnia, palpitations, dreaminess, forgetfulness, body tired Shenpi, eat less embolism. Swallow powder can be used alone or with angelica, white peony root, Semen, Bozi, longan equated with.
2, cough and phlegm. The sweet taste can fill, flat side warm, human lung, lung tonic, warm the lung phlegm, cough and asthma, can often cure phlegm syndrome, see-shaped cold cough, phlegm with asthma, especially for phlegm or better Deficiency type effect. Can be used alone or in combination with Codonopsis, Schisandra, ginger, Banxia convergence lung qi, yang drink drug use.
3, consumptive disease. The product has a nourishing blood effect, it is commonly used rule Consumption short breath, not eating, hand, foot against the cold, or dry mouth, irritability embolism, often with dogwood, ginseng, to yellow and other tonics compatibility.

more about:
Reishi mushroom extract suppliers
from:
Natural Herbal Extracts


Friday, August 22, 2014

pharmacological effects of Horny goat weed



1. The role of endocrine: orny goat weed can promote sexual function is because of the semen hypersecretion, seminal vesicle is filled, stimulate the sensory nerve, indirect sexuality caused excitement. Orny goat weed, main ingredients orny goat weed can obviously promote the development of young mice epididymis and seminal vesicle, orny goat weed with male hormone kind function. 2. The effect on the immune system function: kidney patients T cell number, leaching rate, antibody, antigen and low meshy endodermis system to gobble up function, and after orny goat weed, such as kidney drug treatment all can improve.
3. The role of the blood system: orny goat weed decoction, polysaccharides and flavones, the function of platelet aggregation healthy oral orny goat weed decoction, after red blood pressure decreased significantly, erythrocyte electrophoresis time shortened, blood sedimentation speed, so that the whole blood specific viscosity decreased obviously.


more about:
Horny goat weed Extract suppliers
from:
Natural Herbal Extracts

Tuesday, August 19, 2014

Berchemia Lineata introduction




Berchemia Lineata for plants and Chinese herbal medicine. Plant Berchemia Lineata for rat Li Keteng or a bush. Nun nuclear yellowish green, densely pubescent. Because the goods brown on the root of hua MAO like iron, the xylem color yellow like gold, therefore Berchemia Lineata. General growth in low altitude mountains, elfin forest, road, slope and hill. Herbs Berchemia Lineata for rat lee branch plants Berchemia Lineata and belong to the same plant light branches hook catechu stem or root cane. Late summer early autumn, pregnant lady removed before tender stems and leaves to remove impurities, chopped, fresh or dried; The wineries root, fresh or dried medicine slice. Detumescence, detoxification hemostatic analgesia, functions of the dehumidifying effect and so on.



more about:
Berchemia Lineata Root Extract suppliers
from:
Natural Herbal Extracts




Wednesday, August 13, 2014

Introduction of Irvingia gabonensis



Irvingia is a genus of African and Southeast Asian trees in the family rvingiaceae,some-times known by the common names wild mango, African mango, or bush mango. They bear edible mango-like fruits, and are especially valued for their fat- and protein-rich nuts. The soluble fiber of the seed of irvingia gabonensis like other forms of water-soluble dietary fibers, are "bulk-forming" laxatives. Irvingia gabonensis seeds delay stomach emptying resulting in appetite suppressant, and leading to a more gradual absorption of dietary sugar resulting in reducing the elevation of blood sugar levels that is typical after a meal. Irviginia gabonensis seed extract is used for reducing abdominal fat as a new plant source of anti-obesity ingredients, and also used for helping anti-
diabetic.Considering the wide use of Irvingia gabonensis in the preparation of various dishes in Cameroon, its use should be further encouraged for the purposes of control of dietary lipid as well as for weight reduction.


more about:
PEIrvingia gabonensis suppliers
from:
Natural Herbal Extracts



Sunday, August 10, 2014

Pueraria ingredient



Pueraria powder including wild Pueraria and Pueraria, both contain Pueraria Flavonid, but the south for more kudzu, Pueraria Flavonid content is less, squeezing the starch more commonly, the largest Pueraria origin for shanxi, basic for kudzu, kudzu extract Pueraria flavones much as raw materials, raw materials in Pueraria content of basic between 2% and 6%.
Pueraria Flavonid main contents include: Pueraria element, hydroxy Pueraria element, methoxy Pueraria, soybean glucoside, etc Flavonoids compounds (Iso - Flavonoids) and triterpene, coumarin, and so on. High content of white needle crystal powder, flavone.


more about:
Pueraria Flavonid suppliers
from:
Natural Herbal Extracts


Thursday, August 7, 2014

The related application of salicylaldehyde


Salicylaldehyde and its derivatives as an important intermediate of fine chemical industry not only in medicine, dyes, pesticides, etc, has been widely used, and
the ligand catalytic, electroplating, spices, petrochemical industry, liquid crystal and polymer materials in areas such as attention, too. 5 - chloro methyl salicylic aldehyde as a replace type salicylaldehyde, the synthesis of salicylaldehyde with formaldehyde and paraformaldehyde and concentrated hydrochloric acid in the process of low temperature reaction to get the coarse product. Approach for the product to the subsequent purification process of improvement, this paper proposes a province reagent, time saving, high yield, high purity purification methods. From salicylaldehyde and its derivatives with diamine compounds of schiff base is one of the important ligand and metal compounds are widely used in areas such as olefin epoxidation.

more about:
4- Tert-butyl salicylaldehyde prices
from:
Acridine Raw Material


Sunday, August 3, 2014

Nordihydroguaiaretic acid related effects


Nordihydroguaiaretic acid (NDGA) is an antioxidant compound found in the creosote bush (Larrea tridentata).
The creosote plant has been used in herbal medicine, but its use is controversial. It was widely used during the 1950s as a food preservative and to preserve natural fibers, but was later banned after reports of toxicity during the early 1960s. Recently, it has been used as a nutritional supplement, however renal toxicity and hepatotoxicity are reported for chronic use of creosote bush and NDGA.
A 1986 study involved feeding female mosquitos NDGA to test the effect on their average life span. While the usual mosquito life span was 29 days, the NDGA-fed mosquitos lived an average of 45 days—an increase of 50 percent. A 2008 study reported that nordihydroguaiaretic acid lengthened the lifespan of male mice, but not of female mice.


more about:
Nordihydroguaiaretic acid prices
from:
Acridine Raw Material

Monday, June 16, 2014

Antibodies to E.coli DH-5α proteins Description and Gene Protein Supplier

Antibodies to E.coli DH-5α proteins Description and Gene Protein Supplier?Let's see together

Product name:Antibodies to E.coli DH-5α proteins

Specifications:500ul

Product description:
E.coli DH5α is an engineering strain of bacteria that is widely used in the biology pharmacy. It is recommended to detect the remainder protein of host strain in the finished product. This product is the immune serum obtained from the rabbit injected with E.coli DH5α protein, and can be used in ELISA, western blot etc.

Antibodies to E.coli DH-5α proteins Description and Gene Protein Supplier?To learn more,visit http://www.gene-protein.com//reagents/683/

Thursday, June 12, 2014

Human Interleukin-1 Receptor Antagonist(rhIL-1ra) for sale and buy Gene Protein

Human Interleukin-1 Receptor Antagonist(rhIL-1ra) for sale and buy Gene Protein?Let's see together

Product name:Human Interleukin-1 Receptor Antagonist(rhIL-1ra)

Specifications:10ug/50ug/100ug

Product description:
IL-1ra can specially interdict the biological activity of IL-1 via its typeⅠand typeⅡreceptor. This product is expressed in E.coli, its molecular weigh is about 17kD and its purity is >95% by SDS-PAGE.
Human interleukin 1 receptor antagonist is a natural substance produced by macrophages and other cells in response to endotoxin and other products that play a role in the pathogenesis of sepsis syndrome.

Human Interleukin-1 Receptor Antagonist(rhIL-1ra) for sale and buy Gene Protein?To learn more,visit http://www.gene-protein.com//reagents/679/

Wednesday, May 28, 2014

The application of GM-CSF and where I could buy Gene Protein?

The application of GM-CSF and where I could buy Gene Protein?Let's see together

Product name:GM-CSF

Specifications:10ug/100ug

Product description:
GM-CSF is required for the growth and development of marrow progenitor cells. It also stimulates proliferation and differentiation of granulocytes and macrophages. GM-CSF has a stimulative effect on mature macrophages, neutrophilic granulocytes and acidophilic granulocytes.

The application of GM-CSF and where I could buy Gene Protein?To learn more, visit http://www.gene-protein.com//reagents/675/

Wednesday, May 7, 2014

Information about 10% Ammonium persulfate Solution Price and availability

Information about 10% Ammonium persulfate Solution Price and availability.A genetic marker is a gene or DNA sequence with a known location on a chromosome that can be used to identify individuals or species.
Information about 10% Ammonium persulfate Solution Price and availability

Product name:10% Ammonium persulfate Solution

Specifications:1ml×5

Product description:
Ammonium persulfate is a strong oxidizing agent. It is very soluble in cold water, a large fall of temperature accompanying solution. It is a radical initiator. It is used to etch copper on printed circuit boards as an alternative to ferric chloride solution.

It can be described as a variation (which may arise due to mutation or alteration in the genomic loci) that can be observed. A genetic marker may be a short DNA sequence, such as a sequence surrounding a single base-pair change (single nucleotide polymorphism, SNP), or a long one, like minisatellites.

Information about 10% Ammonium persulfate Solution Price and availability.To learn more, visit http://www.gene-protein.com//reagents/671/

Tuesday, April 29, 2014

Buy Tris-Borate electrophoresis buffer (5×TBE) Gene Protein price

Buy Tris-Borate electrophoresis buffer (5×TBE) Gene Protein price.
Buy Tris-Borate electrophoresis buffer (5×TBE) Gene Protein price

Product name:Tris-Borate electrophoresis buffer (5×TBE)

Specifications:250ml/500ml/1000ml

Product description:
Buffer TBE, 5x is suitable for the preparation of agarose and polyacrylamide gels and as an electrophoresis running buffer for the separation of nucleic acids.

Buy Tris-Borate electrophoresis buffer (5×TBE) Gene Protein price.To learn more, visit http://www.gene-protein.com//reagents/667/

Wednesday, April 23, 2014

Buy LB Medium (Luria-Bertani Medium) price,Gene Protein for sale

Buy LB Medium (Luria-Bertani Medium) price,Gene Protein for sale.The word gene is derived from the Greek word genesis meaning "birth", or genos meaning "origin" (see pangenesis).

Buy LB Medium (Luria-Bertani Medium) price,Gene Protein for sale
Product name:LB Medium (Luria-Bertani Medium)

Specifications:100ml/250ml/500ml/1000ml

Product description:
per liter
1. Bacto tryptone 10 g
2. Bacto yeast extract 5 g
3.NaCl 10 g
Dissolve. Adjust pH to 7.0 with 5 n NaOH.

Buy LB Medium (Luria-Bertani Medium) price,Gene Protein for sale.To learn more, visit http://www.gene-protein.com//reagents/663/

Thursday, April 17, 2014

A brief introduction A brief introduction 0.5M EDTA Solution (pH8.0) Gene Protein Price Gene Protein Price

A brief introduction 0.5M EDTA Solution (pH8.0) Gene Protein Price,DNA is a rock star because it provides all the information that a cell or organism needs to live and thrive
A brief introduction 0.5M EDTA Solution (pH8.0) Gene Protein Price

Product name:0.5M EDTA Solution (pH8.0)

Specifications:
100ml/250ml/500ml/1000ml

Product description:1.pH to 8.0 with NaOH (~20g of NaOH pellets). EDTA will dissolve at pH 8.0. 
2.Adjust volume to 1 liter with distilled water.
3.Sterilize by autoclaving and store at room temperature.

A brief introduction 0.5M EDTA Solution (pH8.0) Gene Protein Price.For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

To learn more, visit http://www.gene-protein.com//reagents/659/

Tuesday, April 15, 2014

Information about 3M Sodium Acetate Solution (pH5.2) Gene Protein Supplier

Information about 3M Sodium Acetate Solution (pH5.2) Gene Protein Supplier,DNA is some pretty important stuff. We would even say it has rock star status. Seriously. 
Information about 3M Sodium Acetate Solution (pH5.2) Gene Protein Supplier

Product name:3M Sodium Acetate Solution (pH5.2)
Specifications:100ml/250ml/500ml 

Content:
123g Sodium Acetate
pH to 5.2 with Glacial Acetic Acid
H20 to 500ml

Storage conditions: -20 ° c

Information about 3M Sodium Acetate Solution (pH5.2) Gene Protein Supplier.For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

To learn more, visit http://www.gene-protein.com//reagents/655/

Wednesday, April 9, 2014

Information about Hank’s Solution I Gene Protein Markers

Information about Hank’s Solution I Gene Protein Markers,Let's see together

Product name:Hank’s Solution I
Specifications:250ml/500ml/1000ml 

Product description:

Hank’s Solution is a kind of sollution which is plused Ca2+ and Mg2+ and  without phenol red.
a salt solution usually used in combination with naturally occurring body substances (blood serum, tissue extracts) and/or more complex chemically defined nutritive solutions for culturing animal cells.

Information about Hank’s Solution I Gene Protein Markers.For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

To learn more, visit http://www.gene-protein.com/price-coa.html

Wednesday, April 2, 2014

4×SDS-PAGE solution for resolving gel Gene Protein

4×SDS-PAGE solution for resolving gel Gene Protein

Product name:4×SDS-PAGE solution for resolving gel

Specifications:100ml/250ml/500ml

Product description:
SDS-PAGE, sodium dodecyl sulfate polyacrylamide gel electrophoresis, is a technique widely used in biochemistry, forensics, genetics and molecular biology to separate proteins according to their electrophoretic mobility. SDS gel electrophoresis of samples having identical charge per unit mass due to binding of SDS results in fractionation by size and is probably the world's most widely used biochemical method.

4×SDS-PAGE solution for resolving gel Gene Protein.For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

To learn more, visit http://www.gene-protein.com//reagents/

Wednesday, March 12, 2014

pBR322 DNA General description

pBR322 DNA General description


DNA vectors

pBR322 DNA General description

Plasmid pBR322 was one of the first multipurpose cloning vectors constructed for use in E. coli. This plasmid is derived from the ColE1-type plasmid pMB1 and shares the same type of replication mechanism and controls as ColE1 and relatives. Plasmid pBR322 confers resistance to ampicillin and tetracycline. The plasmid sequence has been published.

Plasmid pBR322 was one of the first multipurpose cloning vectors constructed for use in Escherichia coli. This plasmid and derivatives have been used for a number of purposes including cloning, selection and expression of recombinant molecules, construction of shuttle vectors and vectors for nucleotide sequencing, studies of elements involved in gene expression, as plasmid DNA standards, and as a model system for studies on prokaryotic plasmid replication.

Wednesday, January 22, 2014

About the HTLV Test kit


The human T-lymphotropic virus type I (HTLV-1) is a human retrovirus that is known to cause a type of cancer, referred to as adult T-cell leukemia and lymphoma, and a demyelinating disease called HTLV-I associated myelopathy/Tropical spastic paraparesis (HAM/TSP). HTLV-I is one of a group of closely related primate T lymphotropic viruses (PTLVs). Members of this family that infect humans are called Human T-lymphotropic viruses, and the ones that infect old world monkeys are called Simian T-lymphotropic viruses (STLVs). To date, four types of HTLVs (HTLV-I, HTLV-II, HTLV-III, and HTLV-IV) and four types of STLVs (STLV-I, STLV-II, STLV-III, and STLV-V) have been identified. The HTLVs are believed to originate from intraspecies transmission of STLVs. The original name for HIV, the virus that causes AIDS, was HTLV-III; this term is no longer in use . The HTLV-1 genome is diploid, composed of two copies of a single-stranded RNA virus whose genome is copied into a double-stranded DNA form that integrates into the host cell genome, at which point the virus is referred to as a provirus. A closely related virus is bovine leukemia virus BLV.

More about:

Friday, January 17, 2014

The nature of catechin

 Catechins(catechin) are widely distributed in plant kingdom, the Acacia catechu, gambir bark abounds with tannins.
Catechins and their oxidation products are hydrocarbon oxygen ternary compound, is made from sugar through a series of enzymes, shikimic acid, by the formation of benzene compounds, the synthesis of catechin.
Catechins has obvious characteristics of phenol, can cause the heavy metals and protein precipitation, therefore, is a kind of phenol content. Phenol content because can make the protein to precipitate, has the size of raw hides tanning into leather performance, so also called tannins or tannin substances.
Catechin and some typical plant tannins (gallic tannin, etc.), compared the performance of the tanning is weaker.
Flavan derivatives. Widely exists in plants, including crystallization water from water/acetic acid needle crystal. Melting point of 93 ~ 96 ℃; Instead of containing water of crystallization of crystalline melting point of 175 ~ 177 ℃. Polarimetric + 16 ° ~ + 18.4 °. Its raceme also assumes the needle crystal, melting point of 212 ~ 216 ℃. Slightly soluble in cold water, ether, soluble in hot water, ethanol, glacial acetic acid and acetone, insoluble in benzene, chloroform and petroleum ether. Catechu essence of cis stereo heterogeneous surface catechu (epicatechin) also widely exists in plants, melting point 242 ℃, polarimetric [alpha] D - 68 ° (ethanol).

Monday, January 13, 2014

The role of Lincomycin Hydrochloride



Lincomycin Hydrochloride can inhibit bacterial protein synthesis, for the majority of gram-positive bacteria and some anaerobic gram-negative bacteria have antibacterial effect. Of gram positive bacteria antibacterial effect similar to erythromycin, sensitive bacteria including streptococcus pneumoniae, s. pyogenes, green streptococcus, staphylococcus aureus, corynebacterium diphtheriae, etc. Anaerobic bacteria stabler sensors including bacteroides, fusobacterium, propionic acid bacillus, bacillus, bifidobacterium, streptococcus, most digestion aureus, gas capsule coli, tetanus, and some actinomycetes, etc. This product can slow resistant staphylococcus. This product of erythromycin resistant staphylococcus aureus often showed cross resistance.
Mainly used for staphylococcus aureus, streptococcus pneumoniae, streptococcus pneumoniae caused by respiratory tract infection, osteomyelitis, joints and soft tissue infection, biliary infection and sepsis. Also can be used for some anaerobic bacteria infection. Topical treatment of gram-positive bacteria suppurative infection.


More about:Lincomycin Hydrochloride manufacturer
From:Natural herbal extracts

Thursday, January 9, 2014

A brief introduction Pyrolase(TM) 160 enzyme



Pyrolase(TM) 160 enzyme agitator is a abounding spectrum β-glycosidase with action abut guar, hydroxypropyl guar, carboxymethyl guar, carboxymethyl hydroxypropyl guar, carboxymethyl cellulose, barley β-glucan, and locust bean gum. The action adjustment of Pyrolase(TM) 160 is both endo and exo, accepting it to bigger allay the bendability of guar and derivatized guar solutions by cleaving aural connected polysaccharide chains and aswell by cleaving disaccharide units from the ends of the polymers.
More about:Pyrolase(TM) 160 enzyme Prices
From:Raw pharmaceutical materials


Wednesday, January 8, 2014

What is arabinose?

Arabinose have eight kinds of isomers, such as beta - D - arabinose, beta - L - arabinose, etc. Arab sugar industry product mainly has two kinds: D - Arab sugar can be obtained from degradation of d-glucose, nature is relatively rare, mainly appear in some bacteria polysaccharides.
Natural L - Arab sugar can be made of D - xylose is uridine diphosphate derivatives by enzymatic isomerization reaction to obtain, also from the corn husk hemicellulose Arab xylose is extracted.
Arabinose original system called Arab tree from a secretion of the classics in colloidal complex chemical and physical methods extracted a dextral simple sugars, natural L - arabinose rarely exist in free, in many pine trees in the heartwood of L - Arab sugar containing free state. Widely exists in plants, often combined with other monosaccharides, in the form of heteropoly sugar exist in the colloid, hemicellulose, pectin acid polysaccharide, bacteria and some glycoside.

More about:Arabinose suppliers
From:Natural herbal extracts