The Role of Gut Microbiota in Male Erectile Dysfunction of Rats

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Reviewed Marked as Reviewed by Svetlana up on 2025-3-24
study design
Citation
PMID PubMed identifier for scientific articles.
DOI Digital object identifier for electronic documents.
URI
Authors
Xu Z, Wang S, Liu C, Kang J, Pan Y, Zhang Z, Zhou H, Xu M, Li X, Wang H, Niu S, Liu L, Sun D, Liu X
Journal
The world journal of men's health
Year
2025
Keywords:
Diet, high-fat, Erectile dysfunction, Gastrointestinal microbiome, Inflammation, Metabolomics
PURPOSE: Erectile dysfunction (ED) is a common male sexual dysfunction. Gut microbiota plays an important role in various diseases. To investigate the effects and mechanisms of intestinal flora dysregulation induced by high-fat diet (HFD) on erectile function. MATERIALS AND METHODS: Male Sprague-Dawley rats aged 8 weeks were randomly divided into the normal diet (ND) and HFD groups. After 24 weeks, a measurement of erectile function was performed. We performed 16S rRNA sequencing of stool samples. Then, we established fecal microbiota transplantation (FMT) rat models by transplanting fecal microbiota from rats of ND group and HFD group to two new groups of rats respectively. After 24 weeks, erectile function of the rats was evaluated and 16S rRNA sequencing was performed, and serum samples were collected for the untargeted metabolomics detection. RESULTS: The erectile function of rats and the species diversity of intestinal microbiota in the HFD group was significantly lower, and the characteristics of the intestinal microbiota community structure were also significantly different between the two groups. The erectile function of rats in the HFD-FMT group was significantly lower than that of rats in the ND-FMT group. The characteristics of the intestinal microbiota community structure were significantly different. In the HFD-FMT group, 27 metabolites were significantly different and they were mainly involved in the several inflammation-related pathways. CONCLUSIONS: Intestinal microbiota disorders induced by HFD can damage the intestinal barrier of rats, change the serum metabolic profile, induce low-grade inflammation and apoptosis in the corpus cavernosum of the penis, and lead to ED.

Experiment 1


Reviewed Marked as Reviewed by Svetlana up on 2025-3-24

Curated date: 2025/03/18

Curator: MyleeeA

Revision editor(s): MyleeeA

Subjects

Location of subjects
China
Host species Species from which microbiome was sampled. Contact us to have more species added.
Rattus norvegicus
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
Response to diet Response to diet,response to diet
Group 0 name Corresponds to the control (unexposed) group for case-control studies
Normal Diet (ND)
Group 1 name Corresponds to the case (exposed) group for case-control studies
Long-term high-fat diet (HFD)
Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
The mice in the high-fat diet (HFD) groups were fed a HFD (carbohydrate, 20%; protein, 20%; fat, 60%; Research Diets). The treatment lasted for 24 weeks
Group 0 sample size Number of subjects in the control (unexposed) group
6
Group 1 sample size Number of subjects in the case (exposed) group
6

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
Mann-Whitney (Wilcoxon)
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)?
No

Alpha Diversity

Shannon Estimator of species richness and species evenness: more weight on species richness
unchanged
Chao1 Abundance-based estimator of species richness
decreased
Richness Number of species
decreased
Faith Phylogenetic diversity, takes into account phylogenetic distance of all taxa identified in a sample
decreased

Signature 1

Reviewed Marked as Reviewed by Svetlana up on 2025-3-24

Curated date: 2025/03/18

Curator: MyleeeA

Revision editor(s): MyleeeA

Source: Figure 2K

Description: Comparison of genus abundance between Normal Diet and High Fat Diet groups.

Abundance in Group 1: increased abundance in Long-term high-fat diet (HFD)

NCBI Quality ControlLinks
Desulfovibrio

Revision editor(s): MyleeeA

Signature 4

Reviewed Marked as Reviewed by Svetlana up on 2025-3-24

Curated date: 2025/03/18

Curator: MyleeeA

Revision editor(s): MyleeeA

Source: Figure 2 (H and J)

Description: Comparison of genus abundance between Normal Diet and High Fat Diet groups.

Abundance in Group 1: decreased abundance in Long-term high-fat diet (HFD)

NCBI Quality ControlLinks
Bacteroidota
Lactobacillus

Revision editor(s): MyleeeA

Experiment 3


Reviewed Marked as Reviewed by Svetlana up on 2025-3-24

Curated date: 2025/03/18

Curator: MyleeeA

Revision editor(s): MyleeeA

Differences from previous experiment shown

Subjects

Condition The experimental condition / phenotype studied according to the Experimental Factor Ontology
Response to transplant Response to transplant,response to transplant
Group 0 name Corresponds to the control (unexposed) group for case-control studies
Normal Diet-Fecal Microbiota Transplantation (ND-FMT)
Group 1 name Corresponds to the case (exposed) group for case-control studies
High-fat diet-Fecal Microbiota Transplantation (HFD-FMT)
Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
The mice in the High Fat Diet Fecal Microbiota Transplantation (HFD-FMT) group were fed fecal microbiota liquid prepared from the feces of rats on HFD.
Group 0 sample size Number of subjects in the control (unexposed) group
5
Group 1 sample size Number of subjects in the case (exposed) group
5

Lab analysis

Statistical Analysis

Alpha Diversity

Shannon Estimator of species richness and species evenness: more weight on species richness
unchanged
Chao1 Abundance-based estimator of species richness
unchanged
Richness Number of species
unchanged
Faith Phylogenetic diversity, takes into account phylogenetic distance of all taxa identified in a sample
unchanged

Signature 1

Reviewed Marked as Reviewed by Svetlana up on 2025-3-24

Curated date: 2025/03/18

Curator: MyleeeA

Revision editor(s): MyleeeA

Source: Figure 4 G, H and I

Description: Genus analysis of intestinal microbiota in Normal Diet FMT and High Fat Diet FMT.

Abundance in Group 1: increased abundance in High-fat diet-Fecal Microbiota Transplantation (HFD-FMT)

NCBI Quality ControlLinks
Clostridium
Desulfovibrio
Mucispirillum

Revision editor(s): MyleeeA

Signature 2

Reviewed Marked as Reviewed by Svetlana up on 2025-3-24

Curated date: 2025/03/19

Curator: MyleeeA

Revision editor(s): MyleeeA

Source: Figure 4 J, K, L and M

Description: Genus analysis of intestinal microbiota in Normal Diet FMT and High Fat Diet FMT.

Abundance in Group 1: decreased abundance in High-fat diet-Fecal Microbiota Transplantation (HFD-FMT)

NCBI Quality ControlLinks
Lactobacillus
Pediococcus
Odoribacter
Helicobacter

Revision editor(s): MyleeeA

Experiment 4


Reviewed Marked as Reviewed by Svetlana up on 2025-3-24

Curated date: 2025/03/18

Curator: MyleeeA

Revision editor(s): MyleeeA

Differences from previous experiment shown

Subjects

Lab analysis

Statistical Analysis

Statistical test
LEfSe

Alpha Diversity

Shannon Estimator of species richness and species evenness: more weight on species richness
unchanged
Chao1 Abundance-based estimator of species richness
unchanged
Richness Number of species
unchanged
Faith Phylogenetic diversity, takes into account phylogenetic distance of all taxa identified in a sample
unchanged

Signature 1

Reviewed Marked as Reviewed by Svetlana up on 2025-3-24

Curated date: 2025/03/19

Curator: MyleeeA

Revision editor(s): MyleeeA

Source: Figure 4F

Description: Differential analysis of intestinal microbiota in Normal Diet FMT and High Fat Diet FMT.

Abundance in Group 1: increased abundance in High-fat diet-Fecal Microbiota Transplantation (HFD-FMT)

NCBI Quality ControlLinks
Bacteria
Clostridia
Clostridiaceae
Clostridium
Coriobacteriaceae
Coriobacteriales
Coriobacteriia
Deferribacteraceae
Deferribacteres
Deltaproteobacteria
Desulfovibrio
Desulfovibrionaceae
Desulfovibrionales
Eubacteriales
Micrococcaceae
Oscillospiraceae
Deferribacterales
Deferribacterota
Mucispirillum
MogibacteriaceaeMogibacteriaceae

Revision editor(s): MyleeeA

Signature 2

Reviewed Marked as Reviewed by Svetlana up on 2025-3-24

Curated date: 2025/03/20

Curator: MyleeeA

Revision editor(s): MyleeeA

Source: Figure 4F

Description: Differential analysis of intestinal microbiota in Normal Diet FMT and High Fat Diet FMT.

Abundance in Group 1: decreased abundance in High-fat diet-Fecal Microbiota Transplantation (HFD-FMT)

NCBI Quality ControlLinks
Lactobacillales
Lactobacillus
Bacilli
Lactobacillaceae
Pediococcus
Helicobacter
Odoribacter
Odoribacteraceae

Revision editor(s): MyleeeA