Both of these effects confirm and extend the result of other studies. The third result was that in people who exercised, the loss of white matter integrity caused by alcohol consumption was prevented or reduced, depending on how much exercise was done and which particular white matter tract in the brain is examined.
Penicillin is one of the earliest discovered and widely used antibiotic agents, derived from the Penicillium mold. Antibiotics are natural substances that are released by bacteria and fungi into the their environment, as a means of inhibiting other organisms-it is chemical warfare on a microscopic scale.
Different types of antibiotic drugs have been developed to treat different diseases. People have used antibiotic substances such as moulds to treat skin infections for thousands of years. However, the first modern antibiotic drug named penicillin was first identified in1928 by a British scientist Sir Alexander Flemming (1881-1955). However the took some time to isolate penicillin and produce drug from it. This was first achieved in 1941.