Malnutrition |
Indonesia |
Healthy = 53, Stunted = 78 |
3–5 years |
V3–V4 |
Illumina Miseq |
p–Bacillota |
p–Bacteroidota, g–Prevotella 9
|
Surono et al. (2021) |
Mexico |
Healthy = 12, Undernourished = 12, Obese = 12 |
9–11 years |
V3–V4 |
Illumina Miseq |
p–Pseudomonadota |
alpha diversity, p–Bacteroidota |
Méndez–Salazar et al. (2018) |
Bangladesh |
Healthy = 7, Malnourished = 7 |
2–3 years |
V5–V6 |
454 parallel sequencing |
p–Pseudomonadota, g–Klebsiella, Escherichia, Neisseria
|
p–Bacteroidota |
Monira et al. (2011) |
Bangladesh |
Cases and controls = 68 |
6–31 months |
V1–V3 |
Illumina Miseq |
p–Pseudomonadota, g–Escherichia/Shigella
|
g–Prevotella
|
Perin et al. (2020) |
India |
Stunted, wasted, and underweight = 41 |
18–12 months |
V3–V4 |
llumina HiSeq2500 |
g–Prevotella 9, Bifidobacterium, Escherichia–Shigella
|
|
Shivakumar et al. (2021) |
India |
Control = 10, Stunted = 10 |
Birth to 2 years |
V4 |
Illumina MiSeq |
g–Desulfovibrio, o–Campylobacterales |
s–Bifidobacterium longum, Lactobacillus mucosae
|
Dinh et al. (2016) |
India |
Undernourished = 53 |
10–18 months |
V3–V4 |
Illumina MiSeq |
p–Pseudomonadota, o–Aeromonadales, g–Enterococcus, g– Anaerococcus, g–Vibrio |
|
Huey et al. (2020) |
Obesity |
Finland |
Normal–weight women = 36, Overweight women = 18 |
~30 years |
fluorescent in situ hybridisation coupled with flow cytometry (FCM–FISH) and by quantitative real–time polymerase chain reaction (qPCR) |
g–Bacteroides, g–Staphylococcus
|
g–Bifidobacterium
|
Collado et al. (2008) |
European countries (Cyprus, Estonia, Germany, Hungary, and Sweden) |
70 subjects (2 time points), Time point 0: Normal = 70, Time point 1: Normal = 34, Obese = 36 |
2–9 years |
V3–V4 |
Illumina MiSeq |
p–Pseudomonadota, f–Bacteroidaceae |
diversity, f–Clostridiaceae, f–Ruminococcaceae, f–Prevotellaceae |
Rampelli et al. (2018) |
|
Germany |
Normal weight = 30, Overweight = 35, Obese = 33 |
14–74 years |
qPCR to detect a group of commensals |
p–Bacteroidota, g–Bacteroides |
g–Bifidobacterium, s–Ruminococcus flavefaciens
|
Schwiertz et al. (2010) |
India |
20 (5 lean, 5 normal, 5 obese, 5 surgically treated obese) |
21–62 years |
900 bases amplicon |
BigDye™ Terminator Cycle Sequencing Ready Reaction Kit v3.1 in an automated 3730 DNA analyser |
g–Bacteroides |
|
Ppatil et al. (2012) |
India |
Normal = 13, Obese = 15 |
11–14 years |
16S rRNA |
qPCR |
s–F. prausnitzii
|
|
Balamurugan et al. (2010) |
|
India |
Normal = 10, Obese = 10 |
NA |
V3 |
Denaturing Gradient Gel Electrophoresis analysed in Gel Compar II version 6.6 software (Sequencing platform was not mentioned) |
s–Collinsella aerofaciens, g–Dialister, g– Eubacterium, g–Mitsuokella, g–Victivallis
|
Diversity |
Bahadur et al. (2021) |
Type 2 diabetes |
West Africa |
Controls = 193, Cases = 98 |
57 years (mean) |
V4 |
Illumina MiSeq |
s–Desulfovibrio piger, g–Prevotella, g–Peptostreptococcus, g–Eubacterium |
f–Clostridiaceae, f–Peptostreptococcaceaea |
Doumatey et al. (2020) |
China |
Normal glucose tolerance = 97, Prediabetese patients = 80, Newly diagnosed treatment naive T2D patient = 77 |
62.53 years (mean) |
WGS |
Combinatorial probe–anchor synthesis (cPAS)–based BGISEQ–500 sequencing |
|
s–Dialister invisus, s–Roseburia hominis
|
Zhong et al. (2019) |
|
Denmark and India |
Indian non–diabetics = 137, Danish non–diabetics = 138, Indian T2D patients = 157, Danish diabetic patients = 141 |
35–74 years |
V1–V5 |
454 GS FLX+ pyrosequencer platform |
f–Lachnospiraceae |
g–Subdoligranulum and Butyricicoccus
|
Alvarez–Silva et al. (2021) |
Meta–analysis (Denmark, Sweden, China) |
Danish non–diabetic = 277, Swedish non–diabetic = 92, Chinese non–diabetic = 185, Danish T2D = 75, T1D = 31, Swedish T2D = 52, Chinese T2D = 71 |
35–75 years |
WGS + 16S rRNA |
Illumina shotgun sequencing |
|
metformin untreated: s–Roseburia spp., Subdoligranulum spp
|
Forslund et al. (2015) |
China |
Non–diabetic = 185, Diabetic = 183 |
13–86 years |
WGS |
Illumin aHiSeq 2000 |
s–Bacteroides caccae, Clostridium hathewayi, Clostridium ramosum, Clostridium symbiosum, Eggerthella lenta, and Escherichia coli
|
s–Clostridiales sp. SS3/4, Eubacterium rectale, Faecalibacterium prausnitzii, Roseburia intestinalis, and Roseburia inulinivorans
|
Wang et al. (2012) |
India |
Healthy = 19, New diabetic patients = 14, Known diabetic patients = 16 |
49.37 years (mean) |
V3 |
Ion Torrent |
g–Lactobacillus, p–Bacillota |
s–P. copri, s–Faecalibacterium prausnitzii, f–Ruminococcaceae, Lachnospiraceae |
Bhute et al. (2017) |
India |
Healthy = 9, T1D = 8, T2D = 10, T3cD = 17 |
18–60 years (Healthy), patient’s age was not mentioned |
V3–V4 |
Illumina MiSeq |
|
Diversity, g–Fecalibacterium, Eubacterium, and Ruminococcus
|
Talukdar et al. (2021) |
India |
Healthy = 30, T2D and no diabetic retinopathy (DR) = 25, T2D + DR = 28 |
54.86 years (mean) |
V3–V4 |
Illumina HiSeq |
g–Escherichia, Enterobacter, Methanobrevibacter, and Treponema
|
g–Roseburia, Lachnospira, Sutterella, Coprococcus, Phascolarctobacterium, Haemophilus, Blautia, Comamonas, Anaerostipes, and Turicibacter
|
Das et al. (2021) |
Colorectal cancer |
China |
Healthy = 56, Patients = 46 |
40–77 years |
V3 |
454 pyrosequencing |
s–Bacteroides fragilis, g–Escherichia/Shigella, Klebsiella, Streptococcus, Enterococcus, Peptostreptococcus, Eggerthella, Fusobacterium
|
s–Bacteroides uniformis, Roseburia spp. and Eubacterium spp.
|
T. Wang et al. (2012) |
China |
Healthy = 130, Patients = 130 |
59.1 years (mean) |
V3–V4 |
Illumina MiSeq |
s–Peptostreptococcus stomatis, Fusobacterium nucleatum, etc.
|
s–Roseburia faecis, Ruminococcus lactaris, Eubacterium desmolans, Streptococcus salivarius, etc.
|
Zhang et al. (2018) |
China |
Patients = 23 (tumour tissue and surrounding healthy tissue) (early and late stages) |
49–70 years |
V4 |
Illumina MiSeq |
late stage: g–Akkermansia, Fusobacterium, Peptostreptococcus, Streptococcus, and Ruminococcus
|
|
Pan et al. (2020) |
USA |
Healthy = 52, Patients = 52 |
61 years (mean) |
WGS |
Illumina HiSeq 2000/2500 |
g–Fusobacterium, Porphyromonas
|
|
Vogtmann et al. (2016) |
India |
Healthy = 30, Patients = 30 |
Not mentioned |
WGS |
Illumina NextSeq 500 |
Diversity, g–Bacteroides, s–Flavonifractor plautii
|
|
Gupta et al. (2019a) |
India |
Patients = 5 (healthy tissue = 5, tumour tissue = 5) |
40–83 years |
V3–V4 |
Ion 520 OT2 |
s–Bacteroides massiliensis, Alistipes sp. Alistipes onderdonkii, Bifidobacterium pseudocatenulatum, Corynebacterium appendicis, and Acidiphilium sp.
|
s–Bacillus sp., Veillonella atypica, etc.
|
Hasan et al. (2022) |
Inflammatory bowel diseases |
USA |
Non–IBD = 27, UC = 38, CD = 67 |
27.5 years (mean) |
WGS |
Illumina HiSeq2500 |
s–E. coli, Ruminococcus torques and Ruminococcus gnavus
|
Faecalibacterium prausnitzii, and Roseburia hominis
|
Lloyd–Price et al. (2019) |
USA and Netherlands |
Non–IBD = 34, UC = 53, CD = 68 |
>18 years |
WGS |
Illumina HiSeq2500 |
g–Unclassified Roseburia
|
s–Roseburia hominis, Dorea formicigenerans and Ruminococcus obeum
|
Franzosa et al. (2019) |
China |
Healthy = 30, IBD patients = 18 |
37 years (mean) |
V3–V4 |
Illumina MiSeq |
p–Pseudomonadota, Fusobacteriota, g–Escherichia_Shigella
|
s–Eubacterium coprostanoligenes, Eubacterium hallii group
|
T. Wang et al. (2022) |
India |
Health control = 17, CD = 20, UC = 22 |
33.6 years (mean) |
16S rRNA gene sequences specific to C. leptum group |
Not mentioned |
|
s–Faecalibacterium prausnitzii, C. leptum group
|
Kabeerdoss et al. (2013) |
India |
Control individuals (haemorrhoid patients only) = 14, UC patients (severe: n = 12, moderate: n = 6, remission: n = 8) = 26 |
36 years (mean) |
Clostridium cluster population targeted by 16S rRNA gene |
Not mentioned |
|
s–Faecalibacterium prausnitzii, R. intestinalis, a member of the C. coccoides group, reduced SCFA
|
Kumari et al. (2013) |
India |
Control = 65, UC = 72, CD = 12 |
38 years (mean) |
Real–time analysis using 16S rRNA |
|
g–Eubacterium, Peptostreptococcus
|
g–Lactobacillus, Ruminococcus, and Bifidobacterium, C. leptum group
|
Verma et al. (2010) |
Gut inflammation and damage to the brain function |
|
|
|
|
|
|
|
|
ASD |
Italy |
Healthy control = 14, ASD patients = 11 |
35 months (mean) |
V3–V4 |
Illumina Miseq |
p–Bacteroidota, Proteobacteria, s–F. prausnitzii, B. uniformis and B. vulgatus and P. distasonis, f–Enterobacteriaceae and Pasteurellaceae |
p–Actinomycetota, s–Bifidobacterium longum and Eggerthella lenta
|
Coretti et al. (2018) |
|
China |
Healthy control = 48, ASD patients = 48 |
2–7 years |
V3–V4 |
Illumina Miseq |
s–P. copri, Bacteroides coprocola, B. vulgatus, Eubacterium eligens, Roseburia faecis
|
s–A. muciniphila, Dialister invisus, Escherichia coli, B. fragilis, Haemophilus parainfluenzae, Flavonifractor plautii
|
Zou et al. (2020) |
China |
Healthy Control = 18, ASD patients = 71 |
3–6 years |
V1–V2 |
Illumina Miseq |
Eisenbergiella, Klebsiella, Faecalibacterium, and Blautia
|
Escherichia, Shigella, Veillonella, Akkermansia, Provindencia, Dialister, Bifidobacterium, Streptococcus
|
Ye et al. (2021) |
India |
Family–matched healthy = 24, ASD children = 30 |
3–16 years |
V3 |
Illumin NextSeq500 |
p–Bacillota, g–Lactobacillus (f–Lactobacillaceae), Bifidobacterium (f–Bifidobacteraceae), Megasphaera, and Mitsuokella (f–Veillonellaceae) |
f–Prevotellaceae, g–Faecalibacterium and Roseburia
|
Pulikkan et al. (2018) |
PD |
China |
Healthy control = 114, ASD patients = 106 (early stage = 48, advanced stage = 58) |
67.6 years (mean) |
V3–V4 |
Illumina Miseq |
In advanced PD patients: p–Desulfobacterota, f–Lachnospiraceae, Desulfovibrionaceae, g–Parasutterella
|
In advanced PD patients: g–Subdoligranulum
|
Zhang et al. (2022) |
Luxembourg |
Healthy control = 162, PD patients = 147 |
66.3 years (mean) |
V3–V4 |
Illumina Miseq |
Akkermansia muciniphila, Biolophila, Christensenella, Lactobacillus, Christensenella, and Lactobacillus
|
Turicibacter
|
Baldini et al. (2020) |
Germany |
Healthy control = 25, PD patients = 34 |
|
V4–V5 |
Ion Torrent PGM |
Clostridiales family XI, Peptoniphilus
|
Faecalibacterium and Fusicatenibacter
|
Weis et al. (2019) |
Alzheimer’s disease |
Italy |
No brain amyloidosis and no cognitive impairment = 10, cognitively impaired patients with amyloidosis = 40, cognitively impaired patients with NO brain amyloidosis = 33 |
69.6 years (mean) |
Selected bacterial DNA quantification using the Microbial DNA qPCR Assay Kit |
Escherichia/Shigella
|
E. rectale
|
Cattaneo et al. (2017) |
USA |
Non–demented individuals = 25, Dementia due to AD = 25 |
70.3 years (mean) |
V4 |
Illumina Miseq |
p–Bacteroidota, g–Bacteroides, Blautia, Phascolarctobacterium, Alistipes, Bilophila
|
alpha diversity, –p Bacillota, Actinomycetota, g–Bifidobacterium, Adlercreutzia, SMB53, Dialister, Clostridium, Turicibacter, and cc115
|
Vogt et al. (2017) |
Diarrhoea |
Bangladesh |
Time–series metagenomic study with 7 patients, 50 healthy children, 12 healthy adult males |
NA |
V4 |
Illumina Miseq |
s–R. obeum restricts V. cholerae colonisation |
|
Hsiao et al. (2014) |
Bangladesh |
Patients’ household members who shared a cooking pot were defined as contacts (n = 27), cholera cohort 1 = 13, cholera cohort 2 = 10 |
≥6 months |
16S rRNA gene (V4) and WGS sequencing |
Illumina HiSeq |
Microbial succession follows secretory diarrheal illness in humans |
David et al. (2015) |
India |
Healthy control = 0, Patients = 20 |
8 months to 56 years |
V3–V4, WGS of 5 samples |
Illumina MiSeq |
p–Bacillota, Presence of s–V. cholerae, Helicobacter pylori, Eschericia sp.
|
p–Bacteroidota, significantly negative correlation between f–Enterobacteriaceae and Lachnospiraceae and Enterobacteriaceae and Ruminococcaceae |
De et al. (2020) |
|
India |
46 children during an episode of acute diarrhoea, immediately after recovery from diarrhoea, and 3 months after recovery |
3 months to 5 years |
16srRNA gene (rDNA) sequences of specific bacterial group |
qPCR |
Bacteroides–Prevotella–Porphyromonas group, s–Eubacterium rectale, Faecalibacterium prauznitzii significantly less abundant during or immediately after diarrhoea than during normal health |
Balamurugan et al. (2008) |
India |
Healthy infant = 1, diarrhoea infected infants = 3 |
3–18 months |
V3 |
Illumina MiSeq |
p–Pseudomonadota, g–Klebsiella, Haemophilus, Rothia, Granulicatella, Chelonobacter and Vibrio species were identified as key pathogenic lineages in diarrheal samples |
p–Bacillota, Bacteroidota |
Thakur et al. (2018) |
India |
105 Central Indian participants comprising 35 rural (12 with diarrhoea) and 70 urban (46 with diarrhoea) |
38.8 years (mean) |
WGS |
Illumina |
Rural habitants have g–Prevotella–dominant microbiome compared with the urban population. Urbanisation is associated with functional enrichment of genes involved in xenobiotic and lipid metabolism, have a much higher burden of AMR overall. |
Monaghan et al. (2020) |
Amoebiasis |
Bangladesh |
Uninfected = 85, Infected = 307 |
Birth to 2 years |
qPCR |
Prevotella copri
|
|
Gilchrist et al. (2016) |
Japan |
Asymptomatic infection = 13, Symptomatic infection = 51 |
43 years (mean) |
V3–V4 |
Illumina Miseq |
f–Streptococcaceae |
f–Ruminococcaceae, Coriobacteriaceae, and Clostridiaceae, s–Collinsella aerofaciens |
Yanagawa et al. (2021) |
India |
Healthy = 22, chronic/acute diarrheal patients = 550 |
21–40 years |
16S rRNA |
qPCR |
g–Bifidobacterium
|
g–Bacteroides, Eubacterium, C. leptum subgroup, C. coccoides, Lactobacillus
|
Verma et al. (2012) |
India |
Healthy = 29, E. histolytica positive patients = 14 |
15–69 years |
V1–V5 |
Illumina HiSeq 2500 |
g–Escherichia, Klebsiella, and Ruminococcus
|
g–Prevotella, Sutterella, and Collinsella
|
Iyer et al. (2023) |