Dysbiosis of gut microbiota in a selected population of Parkinson's patients/Experiment 1

From BugSigDB


Needs review

Curated date: 2024/03/08

Curator: Mojisayo Awolesi

Revision editor(s): Mojisayo Awolesi, Fiddyhamma

Subjects

Location of subjects
Italy
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
Parkinson's disease IDIOPATHIC PARKINSON DIS,Idiopathic Parkinson Disease,Idiopathic Parkinson's Disease,IDIOPATHIC PARKINSONS DIS,Idiopathic PD,LEWY BODY PARKINSON DIS,Lewy Body Parkinson Disease,Lewy Body Parkinson's Disease,Paralysis agitans,paralysis agitans,PARKINSON DIS,PARKINSON DIS IDIOPATHIC,Parkinson disease,Parkinson Disease, Idiopathic,Parkinson syndrome,Parkinson's,Parkinson's disease,Parkinson's disease (disorder),Parkinson's disease NOS,Parkinson's disease NOS (disorder),Parkinson's Disease, Idiopathic,Parkinson's Disease, Lewy Body,Parkinson's syndrome,Parkinsonian disorder,Parkinsonism, Primary,Parkinsons,PARKINSONS DIS,PARKINSONS DIS IDIOPATHIC,PARKINSONS DIS LEWY BODY,Parkinsons disease,Primary Parkinsonism,parkinson's disease
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
Parkinson Disease
Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
Patients with severe and active Parkinson disease. Recruited patients had a diagnosis of idiopathic PD according to the UK Parkinson's Disease Society Brain Bank criteria with a disease duration (measured as the time following the first diagnosis) longer than 6 months
Group 0 sample size Number of subjects in the control (unexposed) group
72
Group 1 sample size Number of subjects in the case (exposed) group
80
Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
4 weeks

Lab analysis

Sequencing type
16S
16S variable region One or more hypervariable region(s) of the bacterial 16S gene
V3-V4
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
Linear Regression
Mann-Whitney (Wilcoxon)
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
Confounders controlled for Confounding factors that have been accounted for by stratification or model adjustment
age, sex, Confounders controlled for: "loss of weight" is not in the list (abnormal glucose tolerance, acetaldehyde, acute graft vs. host disease, acute lymphoblastic leukemia, acute myeloid leukemia, adenoma, age, AIDS, alcohol consumption measurement, alcohol drinking, ...) of allowed values.loss of weight

Alpha Diversity

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

Signature 1

Needs review

Curated date: 2024/03/08

Curator: Mojisayo Awolesi

Revision editor(s): Mojisayo Awolesi, Welile, Fiddyhamma

Source: Table1A, Figure 1, Suppl table S7A and text

Description: PD cases vs HC, both bacterial Families and genera with a significative p-values detected by two methods (Generalized Linear Models and Wilcoxon-Mann-Withney test) are reported.

Abundance in Group 1: increased abundance in Parkinson Disease

NCBI Quality ControlLinks
Enterobacteriaceae
Enterococcaceae
Lactobacillaceae
Enterococcus
Lactococcus
Citrobacter
Klebsiella
Salmonella
Shigella
unclassified Enterobacteriaceae

Revision editor(s): Mojisayo Awolesi, Welile, Fiddyhamma

Signature 2

Needs review

Curated date: 2024/03/08

Curator: Mojisayo Awolesi

Revision editor(s): Mojisayo Awolesi, Welile, Fiddyhamma

Source: Table 1A, Figure 1, Suppl table S7A and text

Description: PD cases vs HC, both bacterial Families and genera with a significative p-values detected by two methods (Generalized Linear Models and Wilcoxon-Mann-Withney test) are reported.

Abundance in Group 1: decreased abundance in Parkinson Disease

NCBI Quality ControlLinks
Lachnospiraceae
Roseburia

Revision editor(s): Mojisayo Awolesi, Welile, Fiddyhamma