Collinsella aerofaciens is a group of bacteria found in the gut and also on the surface of the tongue. It is named after the microbiologist Matthew Collins.
The species name aerofaciens comes from the Greek words “aeros” (gas) and “faciens”, (producing).
The species of the Collinsella genus are known for their ability to ferment a wide range of carbohydrates, including starch, forming products such as hydrogen gas and ethanol.
A reduced abundance of this group of bacteria has been related with more severe symptoms in patients suffering from irritable bowel syndrome.
- Kassinen, A., Krogius-kurikka, L., Paulin, L., Corander, J., Malinen, E., Apajalahti, J., & Palva, A. (2007). The Fecal Microbiota of Irritable Bowel Syndrome Patients Differs. Gastroenterology, 133, 24–33.
- Walker, A. W., Ince, J., Duncan, S. H., Webster, L. M., Holtrop, G., Ze, X., Flint, H. J. (2011). Dominant and diet-responsive groups of bacteria within the human colonic microbiota. The ISME Journal, 5(2), 220–230.
- Tyrrell, K. L., Citron, D. M., Warren, Y. A., Nachnani, S., & Goldstein, E. J. C. (2003). Anaerobic bacteria cultured from the tongue dorsum of subjects with oral malodor. Anaerobe, 9, 243–246.
- Gomez-Arango, Luisa F et al. “Low dietary fiber intake increases Collinsella abundance in the gut microbiota of overweight and obese pregnant women.” Gut microbes vol. 9,3 (2018): 189-201. doi:10.1080/19490976.2017.1406584
Decreased on a high-protein, low-carb weight loss diet in a study in 14 overweight men.
C. aerofaciens reduced in elderly subjects taking NSAIDs compared to elderly subjects not taking NSAIDs, or in young adults.
Oral versus IV iron supplementation in iron-deficient IBD patients resulted in decreased abundances of Faecalibacterium prausnitzii, Ruminococcus bromii, Dorea spp., and Collinsella aerofaciens.
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Higher C. aerofaciens levels in healthy adults consuming a whole grain diet (40 g fiber) compared to red meat diet.
Studies are mixed on the association with fiber and the Collinsella genus, which contains at least 6 species.
Higher levels were found in non-vegetarian versus vegetarian Thai adults that were healthy.
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Acetate, Akkermansia muciniphila, Anaerotruncus colihominis, Anaerotruncus colihominis/massiliensis, Ancylostoma/Necator (Hookworm), Ascaris lumbricoides, Bacteroides uniformis, Bacteroides vulgatus, Bacteroides-Prevotella group, Barnesiella spp., Beta-glucuronidase, Bifidobacterium longum, Bifidobacterium longum subsp. longum, Bifidobacterium spp., Blastocystis spp., Butyrivibrio crossotus, Calprotectin, Candida albicans/dubliniensis, Capillaria philippinensis, Cholesterol, Citrobacter species, Clostridium spp., Collinsella aerofaciens, Coprococcus eutactus, Cryptosporidium parvum/hominis, Cyclospora cayetanensis, Desulfovibrio piger, Dientamoeba fragilis, Entamoeba histolytica, Enterobacter cloacae, Enterobius vermicularis, Enterococcus faecalis, Eosinophil Protein X, Escherichia coli, Faecalibacterium prausnitzii, Fecal Color, Fecal Consistency, Fecal Fat, Total, Fecal Occult Blood, Fecal secretory IgA, Firmicutes/Bacteroidetes (F/B Ratio), Fusobacterium spp., Giardia, Klebsiella oxytoca, Klebsiella species, Lactobacillus spp., Long-Chain Fatty Acids, Methanobrevibacter smithii, n-Butyrate %, n-Butyrate Concentration, Odoribacter spp., Oxalobacter formigenes, Pancreatic Elastase 1, Phocaeicola vulgatus, Phospholipids, Prevotella spp., Products of Protein Breakdown (Total), Propionate, Proteus mirabilis, Pseudoflavonifractor spp., Roseburia spp., Ruminococcus bromii, Ruminococcus spp., Short-Chain Fatty Acids (SCFA), Total, Triglycerides, Veillonella spp., Zonulin Family Peptide