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Human vaginal metagenome

ABSTRACT: vaginal microbiome of pregnant women with penicillin allergy

PROVIDER: PRJNA595036 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR10680267_1.fastq.gz	Fastqsanger.gz
	SRR10680267_2.fastq.gz	Fastqsanger.gz
	SRR10680268_1.fastq.gz	Fastqsanger.gz
	SRR10680268_2.fastq.gz	Fastqsanger.gz
	SRR10680269_1.fastq.gz	Fastqsanger.gz

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Project description:Clinical treatment protocols for infertility with in vitro fertilization-embryo transfer (IVF-ET) provide a unique opportunity to assess the human vaginal microbiome in defined hormonal milieu. Herein, we have investigated the association of circulating ovarian-derived estradiol (E2) and progesterone (P4) concentrations to the vaginal microbiome. Thirty IVF-ET patients were enrolled in this study, after informed consent. Blood was drawn at four time points during the IVF-ET procedure. In addition, if a pregnancy resulted, blood was drawn at 4-to-6 weeks of gestation. The serum concentrations of E2 and P4 were measured. Vaginal swabs were obtained in different hormonal milieu. Two independent genome-based technologies (and the second assayed in two different ways) were employed to identify the vaginal microbes. The vaginal microbiome underwent a transition with a decrease in E2 (and/or a decrease in P4). Novel bacteria were found in the vagina of 33% of the women undergoing IVF-ET. Our approach has enabled the discovery of novel, previously unidentified bacterial species in the human vagina in different hormonal milieu. While the relationship of hormone concentration and vaginal microbes was found to be complex, the data support a shift in the microbiome of the human vagina during IVF-ET therapy using standard protocols. The data also set the foundation for further studies examining correlations between IVF-ET outcome and the vaginal microbiome within a larger study population.

2011-10-24 | E-MEXP-2958 | biostudies-arrayexpress

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Project description:Griffithsin (GRFT) is an anti-viral lectin with potent anti-HIV activity. GRFT’s preclinical safety, lack of systemic absorption after topical administration, and lack of cross-resistance with existing products prompted its development for topical HIV pre-exposure prophylaxis. We evaluated safety, pharmacokinetics and pharmacodynamics of PC-6500 (0.1% GRFT in a carrageenan (CG) gel) in healthy, HIV-negative, non-pregnant women following once daily vaginal gel administration for 14 days. No significant adverse events, histopathological changes in cervico-vaginal mucosa, or anti-drug (GRFT) antibodies were detected. No cervicovaginal proinflammatory responses and no changes in the ectocervical transcriptome were evident. Vaginal microbiome remained largely unchanged. Reduced abundance of vaginosis-associated bacteria and decreased levels of proinflammatory chemokines (CXCL8 and CCL20) were observed. GRFT was not detected in plasma. GRFT and GRFT/CG in CVLs dose-dependently inhibited HIV and HPV, respectively, in vitro. The data suggest GRFT/CG is a promising on-demand multipurpose prevention product that warrants further investigation.

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