Vitamins of group B

The greatest successes vitaminology in recent years associated with the study and discovery of new representatives of vitamins of group C. it includes: vitamin B1 (thiamine), B2 (Riboflavin), PP (nicotinic acid), B6 (pyridoxine), Pantothenic acid, Biotin, Inositol, choline, para-aminobenzoic acid, folic acid and, finally, widely known in recent times vitamin B12.
Para-aminobenzoic acid, Pantothenic acid, Biotin, Inositol and choline. These vitamins are also vitamins of group b, the value of which to humans, scientists are only just beginning to explore. Unknown until and avitaminosis associated with lack of these vitamins. The exception is, perhaps, the only cases bitenova failure observed in people who ate large amounts of raw eggs. Raw egg whites have a protein-avidin, which is extremely fast and actively connected with Biotin, creating the connection, deprived of vitamin properties. As a result of such "off" Biotin can cause lethargy, depression, muscle pain, anemia, and skin changes, accompanied by large peeling. Daily need in Biotin not exceed 10-15 schemes. Demand in the rest of this group vitamins (choline, Inositol and others) is not installed, but, apparently, it's completely rely on the contents of these vitamins in the food.
Great value for a person, apparently, has Pantothenic acid, which is part of a special enzyme (coenzyme A), which, according to the latest data, participation in many important biochemical processes occurring in the body. In addition, Pantothenic acid may have effect on the discoloration of skin and hair. The lack of Pantothenic acid early graying.
The study of values for animals para-aminobenzoic acid and other b vitamins led to the discovery of a new group of substances that have on the body effect opposite to the action of certain vitamins. Such substances are called antivitamins.
Antivitamins appear to act in different ways. Here is one of them. As we already know, unlike complex organism of animals, bacteria are able to form the majority of the known vitamins, which are then part of the enzymes required for the growth and development of microbial cells. Some antivitamins with the structure, very similar to the structure of vitamins, how would displace the last of enzymes and becomes their place. While vitamins cease to have effect, resulting in the vital activity of bacteria, their growth and reproduction are suppressed. This is the way I act on bacteria such medications as sulfidina.
Opening antivitamins not only helped to find out the value of vitamins for the body, but also contributed to the discovery of new drugs that kill bacteria in humans and animals. These recent drugs include, for example, derived paraaminosalicilovaya acid, known as PAS, which has found wide application in the treatment of tuberculosis.