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Ampicillin is a semisynthetic penicillin derivative having an additional amino group in comparison to penicillin G. This additional amino group provides it an ability to penetrate the outer membrane of bacterium, hence more effective in comparison of others. The antibiotic is irreversible inhibitor of transpeptidase, essential in making cell walls in bacteria. It blocks the third and the final stage of cell wall synthesis during division of bacterial cell...

21st, January 2015 University of Southern California: “The largest collaborative study of the brain to date, including 190 institutions containing about 300 researchers across globe, led by the researchers from the Keck School of Medicine of the University of Southern California (USC) examined MRI scans of brain from 30,717 individuals and DNA samples to identify eight common genetic mutations that appear to age the brain an average of three...

Introducing substances such as drugs, DNA molecules, nanoparticles etc, inside the cells requires increasing the permeability of the cells so these compounds successfully cross the membrane barrier and do the job, you want to see. Electroporation also known as electropermeabilization is a technique notorious in molecular biology to do such function. The technique utilizes an electric field to enhance the permeability of the cells which makes possible the introduction...

23rd  January, 2015, Stanford University Medical Center: “Researchers at the Stanford University School of Medicine found a new procedure which can quickly and efficiently increase the length of human telomeres-the protective caps on the ends of chromosomes that are linked to aging and disease. They found the treated cells behave as if they are much younger than non-treated cells and multiply with abandon in the culture dishes rather than...

23rd January, 2015 Italy-“What does makes our immune system capable enough to act against a large variety of aggressors such as viruses, parasites, fungi and tumors, in order of protecting us and keeping healthy? The secret of immunity lies in the large number of clones of T and B lymphocytes, each of which expresses a particular specific receptor. Until a few years ago, deciphering the complexity of this vast...