Human vaginal metagenome (1632839)
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA972692 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR24621200_1.fastq.gz | Fastqsanger.gz | |||
| SRR24621200_2.fastq.gz | Fastqsanger.gz | |||
| SRR24621300_1.fastq.gz | Fastqsanger.gz | |||
| SRR24621300_2.fastq.gz | Fastqsanger.gz | |||
| SRR24621400_1.fastq.gz | Fastqsanger.gz |
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Project description:<p>Urethral microbiome of adolescent males is designed to characterize the microbial communities resident in the urethra of young men, to identify differences in these communities as a function of race/ethnicity, circumcision status, sexual exposures, and uro-genital symptoms. We collect detailed sexual behavior and symptoms data using cellular telephones with Internet access. Specimens are routinely collected at monthly intervals, and intermittently following reported symptoms, specific sexual exposures, or identification of a sexually transmitted infection. We also collect periodic samples from the penile coronal sulcus to better characterize its relationship to the urethral micriobial communities.</p> <p>Participants are ages 14 - 17 at enrollment, and prior history of sexual exposure is not required for participation. Parental permission is obtained for each participant. The planned duration of followup is up to 4 years allowing for prospective observation of both physical and behavioral maturation from middle adolescence into young adulthood.</p> <p>The overall objectives of the project are to better characterize the healthy male urethral microbiome, and to use this information to better understand acquisition of urethritis and sexually transmitted infections, as well as chronic genital pain and prostatitis syndromes that become common among young adults.</p>
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Project description:<p>Urethral microbiome of adolescent males is designed to characterize the microbial communities resident in the urethra of young men, to identify differences in these communities as a function of race/ethnicity, circumcision status, sexual exposures, and uro-genital symptoms. We collect detailed sexual behavior and symptoms data using cellular telephones with Internet access. Specimens are routinely collected at monthly intervals, and intermittently following reported symptoms, specific sexual exposures, or identification of a sexually transmitted infection. We also collect periodic samples from the penile coronal sulcus to better characterize its relationship to the urethral micriobial communities.</p> <p>Participants are ages 14 - 17 at enrollment, and prior history of sexual exposure is not required for participation. Parental permission is obtained for each participant. The planned duration of followup is up to 4 years allowing for prospective observation of both physical and behavioral maturation from middle adolescence into young adulthood.</p> <p>The overall objectives of the project are to better characterize the healthy male urethral microbiome, and to use this information to better understand acquisition of urethritis and sexually transmitted infections, as well as chronic genital pain and prostatitis syndromes that become common among young adults.</p>
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Project description:Background: Vaginal birth causes injury to the pelvic floor and may lead to urinary incontinence. Cell therapy has been proposed to assist in functional recovery. Objective: To assess if intra-arterial injection of mesoangioblasts (MABs) or Vascular Endothelial Growth Factor (VEGF)-overexpressed MABs, improves urethral and vaginal function recovery after simulated vaginal delivery (SVD). Results: All stem-cell injected rats had external urethral sphincteric and vaginal function recovery within 14d, as compared to half of controls. Functional recovery was paralleled by improved muscle regeneration and microvascularization. Recovery was not different between autologous and allogenic MABs. MABsallo-VEGF accelerated functional recovery and increased GAP-43 expression at 7d. We detected early on in the recovery major transcriptional changes in both MABsallo and MABsallo-VEGF. MABSallo upregulated transcripts that encode proteins involved in myogenesis and dendrite development, and downregulated pro-inflammatory processes MABsallo-VEGF upregulated transcripts that encode proteins involved neuron and dendrite development and downregulates genes involved in hypoxia and oxidative stress. 7d after injury, Later MABsallo-VEGF showed a decrease in oxidative and inflammatory response compared to MABSallo treated urethras. These pathways are also downregulated in animals that have recovered at 7d, compared to non-recovered animals. Conclusion: Intra-arterial injection of MABsallo-VEGF enhances neuroregeneration and accelerates functional urethral and vaginal recovery after simulated vaginal delivery. Injection of stem cells induces faster recovery of urethral and vaginal function; cells overexpressing a factor increasing blood vessel formation, were even more effective.
2023-08-30 | GSE222561 | GEO
Project description:There is scant data on the mechanisms through which asymptomatic STIs (aSTIs) alter risk of HIV acquisition in the male genital tract. Foreskin removal lowers the risk of HIV acquisition, but molecular events leading to this protection are unclear. Here we show that an asymptomatic urethral infection with Chlamydia trachomatis significantly alters the foreskin epithelial proteome composition. We developed and optimised a shotgun liquid chromatography coupled tandem mass spectrometry based proteomics approach and applied this to foreskins collected at the time of medical male circumcision from 16 aSTI+ cis-gender men and 10 age-matched STI- controls. We used a novel bioinformatic metaproteomic pipeline to detect differentially expressed proteins. Gene enrichment ontology analysis revealed proteins associated with inflammatory and immune activation function in both inner and outer foreskin from men with an aSTI. Neutrophil activation/degranulation and viral-evasion proteins were significantly enriched in foreskins from men with aSTI whereas homotypic cell-cell adhesion proteins were enriched in foreskin tissue from men without an STI. Collectively, our data show that an asymptomatic urethral sexually transmitted infection result in profound alterations in epitheial tissue that potentially causes depletion of barrier integrity and function and that may encourage HIV susceptibilty.
2023-03-11 | PXD032798 | Pride
Project description:Sex differences in incidence, prognosis, and treatment response have been described for many cancers. In malignant pleural mesothelioma (MPM), a lethal disease associated with asbestos exposure, men outnumber women 4 to 1, but women consistently live longer than men following surgery-based therapy. This study investigated whether tumor expression of genes associated with estrogen signaling could potentially explain observed survival differences. Two microarray datasets of MPM tumors were analyzed to discover estrogen-related genes associated with survival. A validation cohort of MPM tumors was selected to balance the numbers of men and women and control for competing prognostic influences. The RAS like estrogen regulated growth inhibitor (RERG) gene was identified as the most differentially-expressed estrogen-related gene in these tumors and predicted prognosis in discovery datasets. In the sex-matched validation cohort, low RERG expression was significantly associated with increased risk of death among women. No association between RERG expression and survival was found among men, and no relationship between estrogen receptor protein or gene expression and survival was found for either sex. Additional investigations are needed to elucidate the molecular mechanisms underlying this association and its sex specificity.
2021-02-15 | GSE163720 | GEO
Project description:Sex differences in incidence, prognosis, and treatment response have been described for many cancers. In malignant pleural mesothelioma (MPM), a lethal disease associated with asbestos exposure, men outnumber women 4 to 1, but women consistently live longer than men following surgery-based therapy. This study investigated whether tumor expression of genes associated with estrogen signaling could potentially explain observed survival differences. Two microarray datasets of MPM tumors were analyzed to discover estrogen-related genes associated with survival. A validation cohort of MPM tumors was selected to balance the numbers of men and women and control for competing prognostic influences. The RAS like estrogen regulated growth inhibitor (RERG) gene was identified as the most differentially-expressed estrogen-related gene in these tumors and predicted prognosis in discovery datasets. In the sex-matched validation cohort, low RERG expression was significantly associated with increased risk of death among women. No association between RERG expression and survival was found among men, and no relationship between estrogen receptor protein or gene expression and survival was found for either sex. Additional investigations are needed to elucidate the molecular mechanisms underlying this association and its sex specificity.
2021-02-15 | GSE163721 | GEO
Project description:Background: Urethral stricture is related to scar tissue fibrosis, but its pathogenesis is still unclear. This study aims to explore the mechanism of circular RNA (circRNA) in the occurrence and development of urethral stricture. Methods: CircRNA microarray was employed to analyze circRNA expression profiles between human urethral scar tissue and normal urethral tissue. The first nine circRNA differentially expressed were selected for RT-qPCR detection. Urethral scar fibroblasts were isolated from human urethral scar tissue and cultured in vitro. The cells were transfected with si-circ_0047339, LV-circ_0047339, and miR-4691-5p mimic and their corresponding negative controls. Related gene and protein expression was measured by RT-qPCR, Western Blot and immunofluorescence staining, and the cell function was detected by CCK-8 and EDU assay. The targeting relationship between miR-4691-5p and circ_0047339 or TSP-1 was analyzed by dual-luciferase reporter assay. Results: The results of circRNA microarray showed that there were 268 differential genes between urethral scar tissue and normal urethral tissue (circRNA expression difference multiple ≥2 and p value≤0.05). The enrichment analysis of KEGG (Kyoto encyclopedia of genes and genomes) showed that these circRNAs were significantly correlated with ECM-receptor interaction. The first nine differentially expressed circRNA were selected to predict the circRNA-miRNA network. RT-qPCR results showed that circ_0047339 was upregulated considerably in urethral scar tissue. After silencing circ_0047339, the proliferation of urethral scar cells decreased significantly, and the expression of collagen 1 (COL-1) and α-smooth muscle actin (α-SMA) also reduced. Circ_0047339 as a competing endogenous RNA (ceRNA) could increase the expression of TSP-1 by competitively binding miR-4691-5p. In addition, miR-4691-5p mimic transfection could inhibit the proliferation of urethral scar fibroblasts and the presentation of thrombospondin-1 (TSP-1), α-SMA and COL-1, while circ_0047339 overexpression eliminated this inhibition. Conclusion: Our results showed that the dysfunctional circ_0047339 might promote the growth and fibrosis of urethral scar fibroblasts through the ceRNA mechanism, thus promoting the development of urethral stricture via miR-4691-5p/TSP-1 axis.
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