2016年1月19日星期二

What is Prulifloxacin

Prulifloxacin, gatifloxacin is oral fluoroquinolone antibiotics. After the absorption, the prodrug active metabolites through. The drug has the elimination half-life, to allow once-daily dosing. You Lisha star is usually more active than other fluoroquinolones in vitro a variety of clinical isolates of Gram-negative bacteria, including community and hospital C OLI suppressed by the pathogenic strains of Haemophilus influenzae 90%, deformation cloacae, Providencia Providencia neighborhood island and suppress Serratia, catarrhal Haemophilus Moraxella for You Lisha star activity against Pseudomonas aeruginosa vary by country. Gram-positive organisms such as methicillin or oxacillin including MSSA Enterococcus (Enterococcusspp.) And Streptococcus pneumoniae Italian immigrant communities vulnerable ulifloxac. Spain active strains moderate pneumonia. In well-designed clinical trials, as well as good clinical, bacteriological efficacy (similar to ciprofloxacin, amoxicillin or significantly Pefloxacin <50kg600 prulifloxacin 10 days with acute exacerbation of chronic bronchitis or complex under Urinary tract infections (UTIs), a single dose of 600mg acute prulifloxacin, not complicated at UT. two kinds Prulifloxacin clinical trials are usually well tolerated, signings also possible ciprofloxacin resistance.

Tetramethylpyrazine


Product name: Tetramethylpyrazine
CAS no.: 
1124-11-4
Molecular Formula: C8H12N2 
Molecular Weight: 136.19
Appearance: 
White crystal or powder
Product description: As a flavoring agent, the sweet taste of alcoholic beverages, the reinforcing agent of the cigarette, the reinforcing agent and the supplement of the cigarette.
For more, please click:sales@chemicalspharm.com

Where to buy Glucose -Beta- cyclodextrin


Product name:Glucose -Beta- cyclodextrin
CAS no.: 
92517-02-7
Molecular Formula: C48H80O40 
Molecular Weight: 
1297.12
Appearance: White Powder
Purity: ≥98%
Product description:In Medical field, it can promotes the dissolusion efficiency of the drugs, enhancing bioavailability and solubility of drugs,so that to reduce the dose but increase the efficacy, mainly used in medicine of oral liquid.

"Magic pill" to inhibit pancreatic metformin progress

Researchers from Massachusetts General Hospital, found a new mechanism to inhibit pancreatic diabetes drug metformin progress, relevant research results were published in international journals Plos One.

For this study, the most common form of pancreatic cancer - pancreatic ductal adenocarcinoma were studied emphatically. Currently the United States has about 40,000 people each year die from the disease, and a diagnosis of pancreatic ductal adenocarcinoma patients in the presence of about half of overweight or obese, up to 80% of patients with type 2 diabetes or insulin resistance.

Studies have found that patients taking the diabetes medication metformin lower risk of suffering from pancreatic cancer, has been developed for patients with cancer and then taking metformin or may reduce the risk of death. But before this study scientists metformin it has been unclear how to resist the development of pancreatic cancer, nor found to respond to metformin potential biomarkers.

In this study, the researchers first found that for overweight or obese patients taking metformin for treatment, the tumor sample an extracellular matrix component - hyaluronic acid content than patients not taking metformin for 30% less. In obese mouse model of pancreatic cancer, it is possible to reduce the expression of Metformin 1 type hyaluronic acid and collagen, while the activation of pancreatic stellate cells (PSC) is also less. The researchers used cultured cells to study found that metformin can inhibit signaling pathways PSC for the synthesis of hyaluronic acid and Type 1 collagen, but also prevents recruitment of tumor-associated macrophages.

Where to buy Phytine


Product name:Phytine
CAS:      7776-28-5
Molecular Formula:C6H6Ca6O24P6
Formula Weight:888.41
Description:
This product is light yellow slurry liquid, soluble in water, ethanol, acetone, insoluble in anhydrous ether, benzene, hexane, chloroform.
Phytine is used as chelating,antioxidant,antistaling agent,and water softener etc,and is widely used in food,medicine,painting and chemical industry for daily use.
From:http://www.acridine-raw-material.com/products/Phytine/

Evolutionary Game animal sex organs

For decades, scientists have collected a lot of information about the diversity of animal penis, including straight, bifurcated, spiral, long a thorn. However, from the point of view of anatomy, physiological features females equally important to reflect information. Integration and comparative biology meeting held last week, scientists produced a male organ in a lively discussion. Among female sex organs and anatomical structures its importance in shaping the penis has also joined the discussion thread. "A lot of people think that is a kind of female sex after the meeting," evolutionary ecologist at the University of Utah reproductive Teri Orr said.

Scientists have studied the sharks, snakes, and physiological characteristics of other animals in this area. They found that female sexual organs in a complex structure something like the males. So they began to female deemed this "evolution contest" active participants. For example, females will evolve a more complex genitalia, thereby helping to control the mating behavior, while preventing the "strong on" behavior, but these features has led to further evolution of the male sex organs.

Thirty years ago, the field of comparative evolution "plug-in" by the evolutionary biologist biology of sexual organs William? Eberhard created, he was working on the diversity of male genitalia, including the character, size, surface decoration and so on. Eberhard wanted to know the reasons for these diversity. However, when he believed the female genitals, "about the same", which led other scientists to ignore its importance.

Professor Eberhard continue to study the flies, wasps, spiders and other species, are beginning to realize the female sexual organs may not be as easy as you think. Especially males of some species during mating with each other often make friction, tearing, or even chewing behavior, so as to prevent the female from the process. He therefore believed that females might have some preventive mechanism accordingly.
Bolise Co., Ltd.

2016年1月18日星期一

Scientists try to understand the basic principles of active and looking for life in the world of


Initially, Zvonimir Dogic and students selected microtubules and kinesin and mix together. The former is a filamentous protein forms part of the cell's internal skeleton, which is along the "silk" through the motor protein. Subsequently, the researchers let this droplet "cocktail" is suspended in the oil, and to provide a fuel molecule called adenosine triphosphate (ATP) of.

The teams make surprise and delight that these molecules organize themselves formed in the surface of each droplet exhibits large-scale patterns swirling. As Massachusetts Brandeis University physicist Dogic said that a large bundle of proteins are joined together microtubules move, like "concert held to the head of a person is passed around."

Through these tests were published in 2012, Dogic team created a new liquid crystal. And as a response to the electric field pattern standard passive form of molecules of liquid crystal display different, Dogic active ingredients. They can be self-driven, from the surrounding environment, the uptake of energy from ATP. Meanwhile, thanks to the collective behavior of thousands of units of independent movement, they can spontaneously form mode.

These are the characteristics to be a physicist known as the system of active (in the past few years has become an important research object). Such examples abound in nature, including no leader but continuous flight of birds and flowing form cytoskeletal structures. They are increasingly being manufactured in the lab out: researchers used biological structure such as microtubules, etc., and include the formation of micron-sensitive plastic structure "swimmer", including a synthetic component when the lights turn on, synthesized actives. The term "active" appears in the title or abstract, and through peer-reviewed papers quantity of output from 10 years ago, less than 10 per year to nearly 70 last year. Meanwhile, last year, we have organized a number of international seminars on the subject.