Symbiotic Biofilms and Brain Neurochemistry by Alexander V. Oleskin, Vladimir I. Shiskov, Kristina D.

By Alexander V. Oleskin, Vladimir I. Shiskov, Kristina D. Malikina

An overpowering majority of recognized species of microorganisms shape biofilms (i.e: spatially and metabolically established groups embedded within the extracellular biopolymer matrix). Biofilm improvement is a fancy multi-stage procedure concerning reversible and, at a later level, irreversible attachment of microbial cells to the substrate floor. improvement additionally consists of matrix formation, three-d structuring of the complete neighborhood together with the formation of mushroom- or pillar-shaped constructions and, eventually, the degradation of the biofilm and the dispersion of the cells concerned. This publication examines those procedures within the instance of microorganisms that engage with the animal or human organisms, enjoying the jobs of symbionts or pathogens.

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A. & Plakunov, V. K. (2007). A biofilm: A ―city of microbes‖ or an analog of a multicellular organism? Mikrobiologiya, 76, 149-163. Oleskin, A. V. (2007). Biopolitics. Political Potential of Modern Life Sciences. Moscow: Nauchnyi Mir. Oleskin, A. V. & Kirovskaya, T. A. (2006). Research on population organization and communication in microorganisms. Mikrobiologiya, 75, 1-6. References 47 Oleskin, A. , Kirovskaya, T. , Botvinko, I. , & Lysak, L. V. (1998). Effects of serotonin (5-hydroxytryptamine) on the growth and differentiation of microorganisms.

Moore, Z. , Webb, J. , Rice, S. , & Kjelleberg, S. (2009b). Nitric oxide-mediated dispersal in single- and multi-species biofilms of clinically and industrially relevant microorganisms. Mol. , 2, 370-378. Berg, R. D. (1996). The indigenous bacterial microflora. Trends Microbiol. 4, 430-435. Berridge, K. C. & Robinson, T. E. (1998). What is the role of dopamine in reward: hedonic impact, reward learning or inentive salience? Brain Res. , 28, 309-369. Budrene, E. O. & Berg, H. C. (1991). Complex patterns formed by motile cells of Escherichia coli.

These concentrations are sufficient to enable the neurotransmitters to bind to respective receptors in the GI tract of the human/animal host of E. coli. Importantly, the cell density during the later exponential phase (characterized by relatively high neurotransmitter concentrations in the CSF) was about 5×108 cells/ml, which is comparable to the cell density occurring in the human large intestine. It may contain over 108 colony-forming units of E. coli per ml (Shenderov, 2001). This data can apparently testify to possible physiological effects of the amines released by the intestinal symbiont E.

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