Chemist Solves Riddle Of Killer Diseases

BACTERIAL POISON Anthrax, septicemia and meningitis are some of the planet's most deadly infections. In part because doctors lack basic insights to prevent and cure diseases caused by so called Gram-positive bacteria. Now, a chemist from the University of Copenhagen has revealed the mechanism behind these deadly infections.

By creating a synthetic version of a Gram-bacterial endotoxin, Danish synthetic chemist Christian Marcus Pedersen has made a contribution that'll compel immune biologists to revise their textbooks. More importantly, he has paved the first steps of the way towards new and effective types of antibiotics.

Chemist in international collaboration with biologists and physicians
The research results were attained in collaboration with Prof. Richard R. Schmidt of the University of Konstanz and biologists at the Leibniz-Zentrum für Medizin und Biowissenschaften in Borstel, Germany. Ulrich Zähringer, leader of the Centre in Borstel, is thrilled with Pedersen's achievement.

"No one knew what substance Gram-positive bacteria released to make us sick. But because Pedersen can supply us with substances that are entirely pure, and have a known structure and composition, we are able to get a more precise answer as to why we show symptoms when these bacteria enter our body," explains Professor Zähringer.

Synthesis succeeds where biologists gave up
Lipoteichoic acid, is a substance created and present in the cell wall of Gram positive bacteria. It appears to be the culprit of stimulating immune response symptoms such as fever, inflammation and organ failure. Indeed, when exploring illness, it is critical to investigate the substances that bind themselves to healthy human cells and thus, the cell wall becomes an important place to look. But if the substance breaks down as soon as it comes under the microscope, the chances of studying its binding abilities are not very great. Therefore, it was a major breakthrough when Pedersen was able to fabricate the molecule from scratch.

"Biologists have been trying to isolate this poison from living organisms for years. But the substance has a number of active groups. That is to say, the spiked parts of the molecule which enable the entire molecule to bind to cells. This makes it extremely difficult to purify. And dirty molecules are not conducive to viable research. Therefore, it's a great advantage to fabricate the substance synthetically, because we can 'build' a molecule in which everything is included... Or where we ourselves decide which part of the structure to leave out," says Christian Marcus Pedersen.

Understanding of antibiotics mechanism of cephalosporins and ...

This class of drugs for the broad-spectrum fungicide, bactericidal ability, capability penicillin, low toxicity, the incidence of allergic reactions caused by lower than penicillin. Its structure and penicillin are similar to semi-synthetic Antibiotic . It is Cephalosporin Bacteria produced by hydrolysis of cephalosporin C is made, then in the nucleus of chemical synthesis by adding the different side chains available cephalosporins prime , , , , other drugs. Role and purpose: its mechanism and similar to penicillin, can inhibit bacterial cell wall synthesis. Gram positive bacteria, including strains resistant to penicillin; against Staphylococcus aureus, Streptococcus, pneumococcus and effective; on gram-negative bacteria, such as listeria, Pasteurella multocida, Escherichia coli and Salmonella, also has good effect; Leptospira are sensitive to this product. However, Pseudomonas aeruginosa, gas bacillus, Mycobacterium tuberculosis, fungi, mycoplasma, viruses and protozoa is invalid. This product is not easily absorbed orally, absorbed after intramuscular injection well. Poultry intramuscular injection of 10 mg per kilogram body weight by a half-hour up to the peak plasma concentration (18 micrograms per milliliter), half-life of 16 minutes to 54 minutes, the body widely distributed, most of the discharge to prototype. This product is mainly used in drug resistance of S. aureus and a number of serious infections caused by gram-negative bacteria, such as respiratory, urinary tract infections and poultry aureus, E. coli infection. tramp oil separator Role and purpose: The product spectrum cephalosporin antibiotic sodium same, which is characterized by easily absorbed after oral administration, oral administration of chicken per kilogram body weight of 25 mg, 35 mg, 50 mg, 30 minutes to 60 minutes reach peak plasma concentration (average of 20 micrograms per milliliter), half-life of 30 minutes to 126 minutes, 2 hours after treatment to 5 and a half hours, the body can detect drug metabolism less, mainly from the prototype in urine. sodium cephalosporin use and the same.

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