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National Library of Medicine Citations for Irritable Bowel Syndrome

The following have had published studies. These are report on the averages of a group of patients; they do not apply to all patients and are not necessary predictive.

Some studies were done on people with specific conditions, ethnic origin or diet style (i.e. traditional Chinese Diet versus Western Diet), which may be why some shifts are in opposite directions.

See this post about overlapping bacteria/taxa and possible progression of conditions.

AI Engines For more Details: Perplexity  Kagi Labs  You 

Note these are associations and not causation. Items being high or low may be part of the immune response.

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⬆️ indicate a study reporting it is high. ⬇️ indicates a study reporting it is low. Names are indented according to taxonomy rank. Hover over to see rank.

Microviridae   ⬆️    
Pseudomonadota   ⬆️ ⬆️    
Acidobacteriota   ⬆️    
Gammaproteobacteria   ⬆️    
Alphaproteobacteria   ⬆️    
Pseudomonadales   ⬆️   ⬇️  
Stenotrophomonas terrae   ⬆️    
Aeromonas   ⬆️    
Moraxellaceae   ⬆️    
Acinetobacter     ⬇️  
Pseudomonadaceae   ⬆️    
Pseudomonas   ⬆️    
Pseudomonas aeruginosa   ⬆️    
Enterobacteriaceae   ⬆️ ⬆️ ⬆️ ⬆️ ⬆️ ⬆️ ⬆️    
Proteus   ⬆️    
Salmonella   ⬆️ ⬆️    
Shigella   ⬆️ ⬆️ ⬆️ ⬆️    
Citrobacter     ⬇️  
Enterobacter   ⬆️ ⬆️   ⬇️  
Escherichia   ⬆️ ⬆️ ⬆️ ⬆️    
Klebsiella   ⬆️ ⬆️   ⬇️ ⬇️  
Escherichia coli   ⬆️ ⬆️ ⬆️ ⬆️ ⬆️ ⬆️ ⬆️    
Methylobacterium   ⬆️    
Hyphomicrobium     ⬇️  
Neisseriaceae     ⬇️  
Microvirgula     ⬇️  
Sutterellaceae   ⬆️ ⬆️    
Alcaligenaceae     ⬇️  
Burkholderia     ⬇️  
Ralstonia     ⬇️  
Oxalobacter     ⬇️  
Oxalobacter formigenes     ⬇️  
Sutterella     ⬇️  
Parasutterella     ⬇️  
Sutterella wadsworthensis     ⬇️  
Verrucomicrobiota   ⬆️ ⬆️   ⬇️  
Akkermansia   ⬆️   ⬇️  
Akkermansia muciniphila   ⬆️   ⬇️ ⬇️  
Rikenellaceae   ⬆️    
Prevotellaceae   ⬆️    
Bacteroidaceae   ⬆️    
Alistipes     ⬇️ ⬇️  
Alistipes putredinis     ⬇️  
Prevotella   ⬆️ ⬆️ ⬆️ ⬆️ ⬆️ ⬆️ ⬆️ ⬆️ ⬆️   ⬇️ ⬇️  
Paraprevotella   ⬆️    
Alloprevotella   ⬆️    
Paraprevotella clara     ⬇️  
Butyricimonas     ⬇️  
Coprobacter     ⬇️  
Parabacteroides     ⬇️  
Bacteroides   ⬆️ ⬆️ ⬆️ ⬆️   ⬇️ ⬇️ ⬇️  
Bacteroides fragilis   ⬆️    
Bacteroides thetaiotaomicron   ⬆️    
Bacteroides uniformis     ⬇️  
Bacteroides ovatus     ⬇️  
Bacteroides caccae   ⬆️    
Phocaeicola vulgatus     ⬇️  
Bacillota     ⬇️ ⬇️  
Actinomycetota   ⬆️ ⬆️   ⬇️ ⬇️  
Clostridia   ⬆️    
Bacilli   ⬆️    
Parvimonas   ⬆️ ⬆️    
Eubacteriales   ⬆️    
Oscillospiraceae   ⬆️    
Clostridiaceae     ⬇️  
Eubacterium   ⬆️   ⬇️ ⬇️  
Eubacterium coprostanoligenes     ⬇️  
Subdoligranulum     ⬇️ ⬇️  
Oscillibacter   ⬆️ ⬆️    
Sporobacter     ⬇️  
Faecalibacterium   ⬆️   ⬇️ ⬇️ ⬇️ ⬇️ ⬇️  
Ruminococcus   ⬆️ ⬆️ ⬆️ ⬆️   ⬇️  
Faecalibacterium prausnitzii     ⬇️ ⬇️ ⬇️ ⬇️ ⬇️  
[Clostridium] leptum   ⬆️    
Butyricicoccus   ⬆️   ⬇️  
Clostridium   ⬆️ ⬆️ ⬆️   ⬇️  
[Bacteroides] pectinophilus     ⬇️  
Peptostreptococcaceae     ⬇️  
Peptostreptococcus   ⬆️    
Christensenellaceae   ⬆️   ⬇️ ⬇️  
Lachnospiraceae   ⬆️ ⬆️ ⬆️   ⬇️ ⬇️ ⬇️ ⬇️ ⬇️  
Anaerostipes   ⬆️    
Dorea   ⬆️ ⬆️ ⬆️ ⬆️    
Fusicatenibacter   ⬆️    
Eisenbergiella   ⬆️    
Lachnoclostridium   ⬆️ ⬆️ ⬆️    
Moryella     ⬇️  
Blautia   ⬆️    
Roseburia   ⬆️   ⬇️ ⬇️ ⬇️  
Butyrivibrio   ⬆️    
Lachnospira     ⬇️  
Coprococcus     ⬇️ ⬇️  
Mediterraneibacter gnavus   ⬆️    
[Ruminococcus] torques   ⬆️    
Erysipelotrichaceae   ⬆️ ⬆️ ⬆️    
Faecalitalea   ⬆️    
Holdemanella     ⬇️  
Catenibacterium     ⬇️  
Turicibacter     ⬇️ ⬇️ ⬇️  
Acidaminococcaceae   ⬆️ ⬆️    
Phascolarctobacterium   ⬆️    
Acidaminococcus   ⬆️    
Veillonellaceae   ⬆️    
Veillonella   ⬆️ ⬆️   ⬇️  
Dialister     ⬇️  
Veillonella parvula   ⬆️    
Dialister invisus   ⬆️    
Bacillus     ⬇️  
Heyndrickxia coagulans     ⬇️  
Gemella morbillorum   ⬆️    
Staphylococcus aureus   ⬆️    
Enterococcaceae     ⬇️  
Streptococcus   ⬆️ ⬆️ ⬆️   ⬇️  
Streptococcus gallolyticus   ⬆️    
Weissella     ⬇️  
Lactobacillus   ⬆️   ⬇️ ⬇️ ⬇️ ⬇️ ⬇️ ⬇️ ⬇️ ⬇️  
Enterococcus   ⬆️ ⬆️   ⬇️ ⬇️  
Bifidobacterium   ⬆️   ⬇️ ⬇️ ⬇️ ⬇️ ⬇️ ⬇️ ⬇️ ⬇️ ⬇️ ⬇️ ⬇️ ⬇️ ⬇️ ⬇️ ⬇️ ⬇️  
Microbacterium   ⬆️    
Mycobacteriaceae     ⬇️  
Atopobium     ⬇️  
Collinsella     ⬇️  
Collinsella aerofaciens   ⬆️    
Metamycoplasma hominis   ⬆️    
Desulfovibrionaceae   ⬆️ ⬆️    
Desulfovibrio   ⬆️ ⬆️    
Helicobacter pylori   ⬆️ ⬆️    
Campylobacter   ⬆️ ⬆️ ⬆️    
Campylobacter concisus   ⬆️    
Fusobacterium nucleatum   ⬆️    
Methanobacteria     ⬇️  
Methanobrevibacter smithii   ⬆️ ⬆️   ⬇️  
Blastocystis   ⬆️    
Blastocystis hominis   ⬆️    
Proteus   ⬆️    

To see matches for your sample with the literature, raise display level.

Based on Clinical Studies in US National Libary of Medicine

For matching a percentile below 20% can be deemed to be low, and above 80% as high. These are arbitrary thresholds. In some cases, like for d-acidosis, it is the total from all bacteria that is important.

Reference Data
Tax Rank Tax Name Shift Percentile Distribution Citation Link
class Alphaproteobacteria (NCBI:28211 ) High n/a Distribution    📚 PubMed
class Bacilli (NCBI:91061 ) High n/a Distribution    📚 PubMed
class Clostridia (NCBI:186801 ) High n/a Distribution    📚 PubMed
class Gammaproteobacteria (NCBI:1236 ) High n/a Distribution    📚 PubMed
class Methanobacteria (NCBI:183925 ) Low n/a Distribution    📚 PubMed
family Acidaminococcaceae (NCBI:909930 ) High n/a Distribution    📚 PubMed
family Alcaligenaceae (NCBI:506 ) Low n/a Distribution    📚 PubMed
family Bacteroidaceae (NCBI:815 ) High n/a Distribution    📚 PubMed
family Christensenellaceae (NCBI:990719 ) High n/a Distribution    📚 PubMed
family Christensenellaceae (NCBI:990719 ) Low n/a Distribution    📚 PubMed
family Clostridiaceae (NCBI:31979 ) Low n/a Distribution    📚 PubMed
family Desulfovibrionaceae (NCBI:194924 ) High n/a Distribution    📚 PubMed
family Enterobacteriaceae (NCBI:543 ) High n/a Distribution    📚 PubMed
family Enterococcaceae (NCBI:81852 ) Low n/a Distribution    📚 PubMed
family Erysipelotrichaceae (NCBI:128827 ) High n/a Distribution    📚 PubMed
family Lachnospiraceae (NCBI:186803 ) High n/a Distribution    📚 PubMed
family Lachnospiraceae (NCBI:186803 ) Low n/a Distribution    📚 PubMed
family Leuconostocaceae (NCBI:81850 ) Low n/a Distribution    📚 PubMed
family Microviridae (NCBI:10841 ) High n/a Distribution    📚 PubMed
family Moraxellaceae (NCBI:468 ) High n/a Distribution    📚 PubMed
family Mycobacteriaceae (NCBI:1762 ) Low n/a Distribution    📚 PubMed
family Neisseriaceae (NCBI:481 ) Low n/a Distribution    📚 PubMed
family Oscillospiraceae (NCBI:216572 ) High n/a Distribution    📚 PubMed
family Peptostreptococcaceae (NCBI:186804 ) Low n/a Distribution    📚 PubMed
family Prevotellaceae (NCBI:171552 ) High n/a Distribution    📚 PubMed
family Pseudomonadaceae (NCBI:135621 ) High n/a Distribution    📚 PubMed
family Rikenellaceae (NCBI:171550 ) High n/a Distribution    📚 PubMed
family Ruminococcaceae (NCBI:541000 ) High n/a Distribution    📚 PubMed
family Ruminococcaceae (NCBI:541000 ) Low n/a Distribution    📚 PubMed
family Sutterellaceae (NCBI:995019 ) High n/a Distribution    📚 PubMed
family Veillonellaceae (NCBI:31977 ) High n/a Distribution    📚 PubMed
genus Acidaminococcus (NCBI:904 ) High n/a Distribution    📚 PubMed
genus Acinetobacter (NCBI:469 ) Low n/a Distribution    📚 PubMed
genus Aeromonas (NCBI:642 ) High n/a Distribution    📚 PubMed
genus Akkermansia (NCBI:239934 ) High n/a Distribution    📚 PubMed
genus Akkermansia (NCBI:239934 ) Low n/a Distribution    📚 PubMed
genus Alistipes (NCBI:239759 ) Low n/a Distribution    📚 PubMed
genus Alloprevotella (NCBI:1283313 ) High n/a Distribution    📚 PubMed
genus Anaerostipes (NCBI:207244 ) High n/a Distribution    📚 PubMed
genus Atopobium (NCBI:1380 ) Low n/a Distribution    📚 PubMed
genus Bacillus (NCBI:1386 ) Low n/a Distribution    📚 PubMed
genus Bacteroides (NCBI:816 ) High n/a Distribution    📚 PubMed
genus Bacteroides (NCBI:816 ) Low n/a Distribution    📚 PubMed
genus Bifidobacterium (NCBI:1678 ) High n/a Distribution    📚 PubMed
genus Bifidobacterium (NCBI:1678 ) Low n/a Distribution    📚 PubMed
genus Blastocystis (NCBI:12967 ) High n/a Distribution    📚 PubMed
genus Blautia (NCBI:572511 ) High n/a Distribution    📚 PubMed
genus Burkholderia (NCBI:32008 ) Low n/a Distribution    📚 PubMed
genus Butyricicoccus (NCBI:580596 ) High n/a Distribution    📚 PubMed
genus Butyricicoccus (NCBI:580596 ) Low n/a Distribution    📚 PubMed
genus Butyricimonas (NCBI:574697 ) Low n/a Distribution    📚 PubMed
genus Butyrivibrio (NCBI:830 ) High n/a Distribution    📚 PubMed
genus Campylobacter (NCBI:194 ) High n/a Distribution    📚 PubMed
genus Catenibacterium (NCBI:135858 ) Low n/a Distribution    📚 PubMed
genus Citrobacter (NCBI:544 ) Low n/a Distribution    📚 PubMed
genus Clostridium (NCBI:1485 ) High n/a Distribution    📚 PubMed
genus Clostridium (NCBI:1485 ) Low n/a Distribution    📚 PubMed
genus Collinsella (NCBI:102106 ) Low n/a Distribution    📚 PubMed
genus Coprobacter (NCBI:1348911 ) Low n/a Distribution    📚 PubMed
genus Coprococcus (NCBI:33042 ) Low n/a Distribution    📚 PubMed
genus Desulfovibrio (NCBI:872 ) High n/a Distribution    📚 PubMed
genus Dialister (NCBI:39948 ) Low n/a Distribution    📚 PubMed
genus Dorea (NCBI:189330 ) High n/a Distribution    📚 PubMed
genus Eisenbergiella (NCBI:1432051 ) High n/a Distribution    📚 PubMed
genus Enterobacter (NCBI:547 ) High n/a Distribution    📚 PubMed
genus Enterobacter (NCBI:547 ) Low n/a Distribution    📚 PubMed
genus Enterococcus (NCBI:1350 ) High n/a Distribution    📚 PubMed
genus Enterococcus (NCBI:1350 ) Low n/a Distribution    📚 PubMed
genus Erysipelatoclostridium (NCBI:1505663 ) High n/a Distribution    📚 PubMed
genus Escherichia (NCBI:561 ) High n/a Distribution    📚 PubMed
genus Eubacterium (NCBI:1730 ) High n/a Distribution    📚 PubMed
genus Eubacterium (NCBI:1730 ) Low n/a Distribution    📚 PubMed
genus Faecalibacterium (NCBI:216851 ) High n/a Distribution    📚 PubMed
genus Faecalibacterium (NCBI:216851 ) Low n/a Distribution    📚 PubMed
genus Faecalitalea (NCBI:1573534 ) High n/a Distribution    📚 PubMed
genus Fusicatenibacter (NCBI:1407607 ) High n/a Distribution    📚 PubMed
genus Holdemanella (NCBI:1573535 ) Low n/a Distribution    📚 PubMed
genus Hyphomicrobium (NCBI:81 ) Low n/a Distribution    📚 PubMed
genus Klebsiella (NCBI:570 ) High n/a Distribution    📚 PubMed
genus Klebsiella (NCBI:570 ) Low n/a Distribution    📚 PubMed
genus Lachnoclostridium (NCBI:1506553 ) High n/a Distribution    📚 PubMed
genus Lachnospira (NCBI:28050 ) Low n/a Distribution    📚 PubMed
genus Lactobacillus (NCBI:1578 ) High n/a Distribution    📚 PubMed
genus Lactobacillus (NCBI:1578 ) Low n/a Distribution    📚 PubMed
genus Methylobacterium (NCBI:407 ) High n/a Distribution    📚 PubMed
genus Microbacterium (NCBI:33882 ) High n/a Distribution    📚 PubMed
genus Microvirgula (NCBI:57479 ) Low n/a Distribution    📚 PubMed
genus Moryella (NCBI:437755 ) Low n/a Distribution    📚 PubMed
genus Oscillibacter (NCBI:459786 ) High n/a Distribution    📚 PubMed
genus Oxalobacter (NCBI:846 ) Low n/a Distribution    📚 PubMed
genus Parabacteroides (NCBI:375288 ) Low n/a Distribution    📚 PubMed
genus Paraprevotella (NCBI:577309 ) High n/a Distribution    📚 PubMed
genus Parasutterella (NCBI:577310 ) Low n/a Distribution    📚 PubMed
genus Parvimonas (NCBI:543311 ) High n/a Distribution    📚 PubMed
genus Peptostreptococcus (NCBI:1257 ) High n/a Distribution    📚 PubMed
genus Phascolarctobacterium (NCBI:33024 ) High n/a Distribution    📚 PubMed
genus Prevotella (NCBI:838 ) High n/a Distribution    📚 PubMed
genus Prevotella (NCBI:838 ) Low n/a Distribution    📚 PubMed
genus Proteus (NCBI:583 ) High n/a Distribution    📚 PubMed
genus Proteus (NCBI:210425 ) High n/a Distribution    📚 PubMed
genus Pseudomonas (NCBI:286 ) High n/a Distribution    📚 PubMed
genus Ralstonia (NCBI:48736 ) Low n/a Distribution    📚 PubMed
genus Roseburia (NCBI:841 ) High n/a Distribution    📚 PubMed
genus Roseburia (NCBI:841 ) Low n/a Distribution    📚 PubMed
genus Ruminococcus (NCBI:1263 ) High n/a Distribution    📚 PubMed
genus Ruminococcus (NCBI:1263 ) Low n/a Distribution    📚 PubMed
genus Salmonella (NCBI:590 ) High n/a Distribution    📚 PubMed
genus Shigella (NCBI:620 ) High n/a Distribution    📚 PubMed
genus Sporobacter (NCBI:44748 ) Low n/a Distribution    📚 PubMed
genus Streptococcus (NCBI:1301 ) High n/a Distribution    📚 PubMed
genus Streptococcus (NCBI:1301 ) Low n/a Distribution    📚 PubMed
genus Subdoligranulum (NCBI:292632 ) Low n/a Distribution    📚 PubMed
genus Sutterella (NCBI:40544 ) Low n/a Distribution    📚 PubMed
genus Turicibacter (NCBI:191303 ) Low n/a Distribution    📚 PubMed
genus Veillonella (NCBI:29465 ) High n/a Distribution    📚 PubMed
genus Veillonella (NCBI:29465 ) Low n/a Distribution    📚 PubMed
genus Weissella (NCBI:46255 ) Low n/a Distribution    📚 PubMed
order Eubacteriales (NCBI:186802 ) High n/a Distribution    📚 PubMed
order Pseudomonadales (NCBI:72274 ) High n/a Distribution    📚 PubMed
order Pseudomonadales (NCBI:72274 ) Low n/a Distribution    📚 PubMed
phylum Acidobacteriota (NCBI:57723 ) High n/a Distribution    📚 PubMed
phylum Actinomycetota (NCBI:201174 ) High n/a Distribution    📚 PubMed
phylum Actinomycetota (NCBI:201174 ) Low n/a Distribution    📚 PubMed
phylum Bacillota (NCBI:1239 ) Low n/a Distribution    📚 PubMed
phylum Desulfobacterota (NCBI:2904303 ) High n/a Distribution    📚 PubMed
phylum Pseudomonadota (NCBI:1224 ) High n/a Distribution    📚 PubMed
phylum Verrucomicrobiota (NCBI:74201 ) High n/a Distribution    📚 PubMed
phylum Verrucomicrobiota (NCBI:74201 ) Low n/a Distribution    📚 PubMed
species [Bacteroides] pectinophilus (NCBI:384638 ) Low n/a Distribution    📚 PubMed
species [Clostridium] leptum (NCBI:1535 ) High n/a Distribution    📚 PubMed
species [Ruminococcus] torques (NCBI:33039 ) High n/a Distribution    📚 PubMed
species Akkermansia muciniphila (NCBI:239935 ) High n/a Distribution    📚 PubMed
species Akkermansia muciniphila (NCBI:239935 ) Low n/a Distribution    📚 PubMed
species Alistipes putredinis (NCBI:28117 ) Low n/a Distribution    📚 PubMed
species Bacteroides caccae (NCBI:47678 ) High n/a Distribution    📚 PubMed
species Bacteroides fragilis (NCBI:817 ) High n/a Distribution    📚 PubMed
species Bacteroides ovatus (NCBI:28116 ) Low n/a Distribution    📚 PubMed
species Bacteroides thetaiotaomicron (NCBI:818 ) High n/a Distribution    📚 PubMed
species Bacteroides uniformis (NCBI:820 ) Low n/a Distribution    📚 PubMed
species Blastocystis hominis (NCBI:12968 ) High n/a Distribution    📚 PubMed
species Campylobacter concisus (NCBI:199 ) High n/a Distribution    📚 PubMed
species Collinsella aerofaciens (NCBI:74426 ) High n/a Distribution    📚 PubMed
species Dialister invisus (NCBI:218538 ) High n/a Distribution    📚 PubMed
species Escherichia coli (NCBI:562 ) High n/a Distribution    📚 PubMed
species Eubacterium coprostanoligenes (NCBI:290054 ) Low n/a Distribution    📚 PubMed
species Faecalibacterium prausnitzii (NCBI:853 ) Low n/a Distribution    📚 PubMed
species Fusobacterium nucleatum (NCBI:851 ) High n/a Distribution    📚 PubMed
species Gemella morbillorum (NCBI:29391 ) High n/a Distribution    📚 PubMed
species Helicobacter pylori (NCBI:210 ) High n/a Distribution    📚 PubMed
species Heyndrickxia coagulans (NCBI:1398 ) Low n/a Distribution    📚 PubMed
species Mediterraneibacter gnavus (NCBI:33038 ) High n/a Distribution    📚 PubMed
species Metamycoplasma hominis (NCBI:2098 ) High n/a Distribution    📚 PubMed
species Methanobrevibacter smithii (NCBI:2173 ) High n/a Distribution    📚 PubMed
species Methanobrevibacter smithii (NCBI:2173 ) Low n/a Distribution    📚 PubMed
species Oxalobacter formigenes (NCBI:847 ) Low n/a Distribution    📚 PubMed
species Paraprevotella clara (NCBI:454154 ) Low n/a Distribution    📚 PubMed
species Phocaeicola vulgatus (NCBI:821 ) Low n/a Distribution    📚 PubMed
species Pseudomonas aeruginosa (NCBI:287 ) High n/a Distribution    📚 PubMed
species Staphylococcus aureus (NCBI:1280 ) High n/a Distribution    📚 PubMed
species Stenotrophomonas terrae (NCBI:405446 ) High n/a Distribution    📚 PubMed
species Streptococcus gallolyticus (NCBI:315405 ) High n/a Distribution    📚 PubMed
species Sutterella wadsworthensis (NCBI:40545 ) Low n/a Distribution    📚 PubMed
species Veillonella parvula (NCBI:29466 ) High n/a Distribution    📚 PubMed

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