Mikroorganizmy zasiedlające organizm ludzki

Paweł Kowalczyk¹, Katarzyna Głowacka², Ewa Beata Górska²

Summary
Microorganisms are accompanied by a man in every moment of life, in every situation. They are ubiquitous organisms that can live in extremely high temperature or anaerobic conditions. They live in various other organisms and the human body is no exception. Viable bacteria comprise from 2 to 5 kg body weight. Microorganisms represent only a small, albeit significant, percentage of the weight of the human body. Microorganisms inhabiting our bodies accompanied us throughout our lives. From the moment of birth they are beginning to develop in various parts of the body. There are the skin, the gastrointestinal tract or the respiratory tract. The most important bacteria colonizing the surface of human skin are mainly two types of bacteria: Staphylococcus epidermidis and Propionibacterium acnes. The intestinal microflora is dominated mainly by strict anaerobes types including: Bacteroides, Bifidobacterium, Peptostreptococcus. Probably the high level of bifidobacteria in the colon contributes to the health of man, lead to increasing use them as probiotics. It turned out that the presence of these microorganisms beneficial effects on various diseases, including diarrhea associated with rotavirus or inflammatory bowel disease such, necrotizing enterocolitis or allergy. In the newborn digestive system is not yet occupied by any microorganisms, but soon comes to the colonization of different microorganisms. These microorganisms consume organic compounds that could harm human health and contribute to the development of pathogenic microorganisms. Representatives of this group of bacteria inhabiting the human digestive tract include Escherichia coli, Salmonella sp., Shigella sp. Which after getting into the urinary tract can cause serious complications that cause various skin diseases often cumbersome called civilization.

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