Implication of the gut microbiome composition of type 2 diabetic patients from northern China

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Reviewed Marked as Reviewed by Atrayees on 2023-7-6
study design
Citation
PMID PubMed identifier for scientific articles.
DOI Digital object identifier for electronic documents.
Authors
Li Q, Chang Y, Zhang K, Chen H, Tao S, Zhang Z
Journal
Scientific reports
Year
2020
Emerging evidence has suggested the association of the gut microbiome with some human diseases, including type 2 diabetes (T2D). In this study, we analyzed the gut microbiota from a cohort of healthy and diabetic Chinese individuals from Northern China. Pyrosequencing of the V4V5 region of 16S rRNA genes revealed a significant decrease in the gut microbiota diversity of diabetic patients as compared to healthy individuals. Butyrate-producing bacteria such as Bifidobacterium and Akkermansia were significantly decreased in diabetic patients. Furthermore, the abundance of Dorea was significantly increased in T2D individuals and negatively correlated with the abundance of butyrate-producing bacteria. The increase of Dorea could play a role in the development of T2D and has been previously overlooked. Importantly, functional analysis of the gut microbiome revealed for the first time that increased levels of butyrate production via transferases and the degradation of several amino acids due to gut microbial metabolism have strong correlations with T2D in Northern China. Moreover, the potential of gut microbiota-based classifiers to identify individuals with a high risk for T2D has been demonstrated in this study. Taken together, our findings have revealed a previously unappreciated association of the gut microbiome with T2D and have also suggested that changes in gut microbiota may be used to identify individuals at high risk for T2D.

Experiment 1


Reviewed Marked as Reviewed by Atrayees on 2023-7-6

Curated date: 2021/07/05

Curator: Madhubani Dey

Revision editor(s): Madhubani Dey, WikiWorks, Atrayees

Subjects

Location of subjects
China
Host species Species from which microbiome was sampled. Contact us to have more species added.
Homo sapiens
Body site Anatomical site where microbial samples were extracted from according to the Uber Anatomy Ontology
Feces Cow dung,Cow pat,Droppings,Dung,Excrement,Excreta,Faeces,Fecal material,Fecal matter,Fewmet,Frass,Guano,Matières fécales@fr,Merde@fr,Ordure,Partie de la merde@fr,Piece of shit,Porción de mierda@es,Portion of dung,Portion of excrement,Portion of faeces,Portion of fecal material,Portion of fecal matter,Portion of feces,Portion of guano,Portion of scat,Portionem cacas,Scat,Spoor,Spraint,Stool,Teil der fäkalien@de,Feces,feces
Condition The experimental condition / phenotype studied according to the Experimental Factor Ontology
Type II diabetes mellitus adult onset diabetes,Adult-Onset Diabetes,adult-onset diabetes,Adult-Onset Diabetes Mellitus,diabetes mellitis type 2,diabetes mellitis type II,DIABETES MELLITUS TYPE 02,diabetes mellitus type 2,Diabetes Mellitus, Adult Onset,Diabetes Mellitus, Adult-Onset,Diabetes Mellitus, Ketosis Resistant,Diabetes Mellitus, Ketosis-Resistant,Diabetes Mellitus, Maturity Onset,Diabetes Mellitus, Maturity-Onset,Diabetes Mellitus, Non Insulin Dependent,Diabetes Mellitus, Non-Insulin-Dependent,Diabetes Mellitus, Noninsulin Dependent,diabetes mellitus, noninsulin-dependent,Diabetes Mellitus, Slow Onset,Diabetes Mellitus, Slow-Onset,Diabetes Mellitus, Stable,Diabetes Mellitus, Type 2,diabetes mellitus, type 2,diabetes mellitus, type 2, protection against,Diabetes Mellitus, Type II,Diabetes, Type 2,diabetes, type 2,insulin resistance, susceptibility to,Ketosis-Resistant Diabetes Mellitus,Maturity Onset Diabetes Mellitus,maturity-onset diabetes,Maturity-Onset Diabetes Mellitus,MODY,NIDDM,Non-Insulin Dependent Diabetes,non-insulin dependent diabetes,Non-Insulin Dependent Diabetes Mellitus,non-insulin dependent diabetes mellitus,non-insulin-dependent diabetes mellitus,noninsulin dependent diabetes,noninsulin-dependent diabetes mellitus,Slow-Onset Diabetes Mellitus,Stable Diabetes Mellitus,T2DM - Type 2 Diabetes mellitus,T2DM - type 2 diabetes mellitus,Type 2 Diabetes,type 2 diabetes,Type 2 Diabetes Mellitus,type 2 diabetes mellitus,Type 2 Diabetes Mellitus Non-Insulin Dependent,type 2 diabetes mellitus non-insulin dependent,Type II Diabetes,type II diabetes,type II diabetes mellitus,Type II diabetes mellitus
Group 0 name Corresponds to the control (unexposed) group for case-control studies
Healthy controls
Group 1 name Corresponds to the case (exposed) group for case-control studies
Individuals diagnosed with Type 2 Diabetes Mellitus
Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
Individuals diagnosed with Type 2 Diabetes Mellitus; T2D subjects were required to meet the following inclusion criteria: (i) fasting blood glucose test (FBG) 7 mmol/L or greater and/or 2-h fasting oral glucose tolerance test (OGTT) 11.1 mmol/L or greater35; (ii) no previously received pharmacologic treatment; and (iii) body mass index (BMI) > 18.0 kg/m2.
Group 0 sample size Number of subjects in the control (unexposed) group
40
Group 1 sample size Number of subjects in the case (exposed) group
20
Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
2 months

Lab analysis

Sequencing type
16S
16S variable region One or more hypervariable region(s) of the bacterial 16S gene
V4-V5
Sequencing platform Manufacturer and experimental platform used for quantifying microbial abundance
Illumina

Statistical Analysis

Data transformation Data transformation applied to microbial abundance measurements prior to differential abundance testing (if any).
relative abundances
Statistical test
T-Test
Significance threshold p-value or FDR threshold used for differential abundance testing (if any)
0.05
MHT correction Have statistical tests be corrected for multiple hypothesis testing (MHT)?
Yes

Alpha Diversity

Shannon Estimator of species richness and species evenness: more weight on species richness
unchanged
Chao1 Abundance-based estimator of species richness
decreased
Simpson Estimator of species richness and species evenness: more weight on species evenness
unchanged

Signature 1

Reviewed Marked as Reviewed by Atrayees on 2023-7-6

Curated date: 2021/07/05

Curator: Madhubani Dey

Revision editor(s): Madhubani Dey, Atrayees

Source: Figure 2b

Description: Decreased abundance of bacterial communities in individuals with Type 2 Diabetes compared to healthy controls

Abundance in Group 1: decreased abundance in Individuals diagnosed with Type 2 Diabetes Mellitus

NCBI Quality ControlLinks
Akkermansia
Bifidobacterium
Parabacteroides
Faecalibacterium

Revision editor(s): Madhubani Dey, Atrayees

Signature 2

Reviewed Marked as Reviewed by Atrayees on 2023-7-6

Curated date: 2021/07/05

Curator: Madhubani Dey

Revision editor(s): Madhubani Dey

Source: Figure 2b

Description: Increased abundance of bacterial communities in individuals with Type 2 Diabetes compared to healthy controls

Abundance in Group 1: increased abundance in Individuals diagnosed with Type 2 Diabetes Mellitus

NCBI Quality ControlLinks
Dorea
Fusobacterium
Bacillota
Streptococcus

Revision editor(s): Madhubani Dey