This article lists some of the species recognized as belonging to the human microbiome. The "reference" 70 kg human body is estimated to have around 39 trillion bacterias with their total mass of about 0.2 kg. [1][2][3][4] These can be separated into about 10,000 microbial species. about 180 of the most studied is listed below here. However all of these can broadly be put into 3 categories:[5]
- Spheres or ball-shaped (cocci bacteria).
- Rod-shaped bacteria (bacilli).
- Spirals or helixes (spirochetes).
Whole-body distributed edit
This section needs expansion. You can help by adding to it. (January 2024) |
Naming convention for the table edit
Column | Description |
---|---|
Binomial name | Name of the species, Ideally including the shape of the bacteria |
Location | Where it can be found in the body |
Pathological? | Can it harm humans or is it useful? the scale goes Not, Mostly not, Sometimes, Useful |
% of total Microbiome? | How many % does the bacteria in number of organisms make out of the entire human microbiome |
Vagina edit
The vaginal microbiota in pregnancy varies markedly during the entire time of gestation. The species and diversity of the microorganisms may be related to the various levels of hormones during pregnancy.[6]
Uterus edit
The healthy uterine microbiome has been identified and over 278 genera have been sequenced.[7]
Ovarian follicle edit
The ovarian follicle microbiome has been studied using standard culturing techniques. It has been associated with the outcomes of assisted reproductive technologies and birth outcomes. Positive outcomes are related to the presence of Lactobacilli spp while the presence of Propionibacterium and Actinomyces were related to negative outcomes. The microbiome can vary from one ovary to the other. Studies are ongoing in the further identification of those bacteria present.[7]
Male reproductive tract edit
The microbiome present in seminal fluid has been evaluated. Using traditional culturing techniques the microbiome differs between men who have acute prostatitis and those who have chronic prostatitis. Identification of the seminal fluid microbiome has become one of the diagnostic tools used in treating infertility in men that do not display symptoms of infection or disease. The taxa Pseudomonas, Lactobacillus, and Prevotella display a negative effect on the quality of sperm. The presence of Lactobacillus spp in semen samples is associated with a very high normal sperm count.[7]
See also edit
Other lists of the Human body's contents and building bricks edit
References edit
- ^ "Revised Estimates for the Number of Human and Bacteria Cells in the Body". PLOS Biology. 2016-08-19. doi:10.1371/journal.pbio.1002533. PMC 4991899.
- ^ Abbott, Alison (2016-01-08). "Scientists bust myth that our bodies have more bacteria than human cells". Nature. doi:10.1038/nature.2016.19136. ISSN 1476-4687.
- ^ "Do our bodies contain far more bacteria than human cells? - Eppendorf Handling Solutions". handling-solutions.eppendorf.com. 2022-01-10. Retrieved 2023-07-16.
- ^ "NIH Human Microbiome Project defines normal bacterial makeup of the body". National Institutes of Health (NIH). 2015-08-31. Retrieved 2023-07-16.
- ^ "Bacteria: Definition, Types, Benefits, Risks & Examples". Cleveland Clinic. Retrieved 2023-07-16.
- ^ Fox, Chelsea; Eichelberger, Kacey (2015). "Maternal microbiome and pregnancy outcomes". Fertility and Sterility. 104 (6): 1358–1363. doi:10.1016/j.fertnstert.2015.09.037. ISSN 0015-0282. PMID 26493119; Access provided by the University of Pittsburgh
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: CS1 maint: postscript (link) - ^ a b c Franasiak, Jason M.; Scott, Richard T. (2015). "Reproductive tract microbiome in assisted reproductive technologies". Fertility and Sterility. 104 (6): 1364–1371. doi:10.1016/j.fertnstert.2015.10.012. ISSN 0015-0282. PMID 26597628; Access provided by the University of Pittsburgh
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: CS1 maint: postscript (link)