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Prevotella

Prevotella tend to colonize the human gut, mouth and vagina, and may cause infections, but can also co-exist harmlessly with their human host. Although increased levels of Prevotella bacteria may simply be an indication of a fiber-rich diet, they can also be associated with some health conditions.

The bacterial genus (or group) Prevotella (pronounced “prevvo-tella”) contains almost 50 species. It was named in the 1920s after pioneering French microbiologist A. R. Prévot.

A 2010 study showed that although Prevotella were absent from the gut bacteria of European children, the genus made up 53% of the gut bacteria of children in West Africa. Scientists suggest that those who consume a typically Western diet rich in protein and animal fats tend to have predominantly Bacteroides bacteria, while people who eat more carbohydrates, particularly fiber, have a microbiome dominated by Prevotella.

References 

1. Kang DW, Park JG, Ilhan ZE, Wallstrom G, LaBaer J, Adams JB, Krajmalnik-Brown R. Reduced incidence of Prevotella and other fermenters in intestinal microflora of autistic children. PLoS One. 2013, 8(7), e68322. 

2. Sandhya, P., Danda, D., Sharma, D. and Scaria, V. (2015). Does the buck stop with the bugs?: an overview of microbial dysbiosis in rheumatoid arthritis. International Journal of Rheumatic Diseases, in press (Epub ahead of print). 

3. Duerdeni, B. I., Eley, A., Rawlinsonlj, A., & Goodwint, L. (1993). Incidence and Distribution of Non-pigmented Prevotella Species in Periodontal Pockets Before and After Periodontal Therapy. Microbial Ecology in Health Annd Disease, 6, 35–42. 

4. Lucke, K, Miehlke, S, Jacobs, E, Schuppler, M. (2006). Prevalence of Bacteroides and Prevotella spp. in ulcerative colitis. Journal of Medical Microbiology, 55 (5), 617-624.






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