Document Type: Review Article


1 Division Microbiology, Department of Molecular and Cell Biology, Faculty of Basic Sciences, Lahijan branch, Islamic Azad University(IAU), Lahijan, Gilan, IR. Iran

2 Mycobacteriology Research Centre (MRC), National Research Institute of Tuberculosis and Lung Disease (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran



The aim of this study is introduction on microbials as an effective agent in the human body. Microbial (symbiotic microorganisms) means the general and universal ecosystem of riches, all genes and masses of micronutrients, regardless of their genera and species, are referred to in a particular section. The symbiotic microbials have a symbiotic relationship with host creatures. This means that these microbes can also be partners, both pathogens. For example, all bacteria, fungi and other types of germs that live natively in the human skin are called microbiotics. The largest microbial of the human body is the microbioum of the digestive tract and, in particular, the large intestine. This term, although used more in medicine, is also valid in other branches of microbiology. They play an important role in health and disease. And trillions of bacteria, called microbials, that make up our bodies in our societies, involve the release of chemicals in the method of digestion, the delivery of medication, and the development and development of diseases such as heart disease, metabolic disorders (metabolism), or even cancer progression.


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