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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Vaginal epithelial gene expression in postmenopausal women suffering from vaginal dryness

ABSTRACT: The onset of menopause is accompanied by a dramatic increase in reported symptoms of vaginal dryness, soreness, irritation or itching, pain with intercourse and bleeding after intercourse. Collectively these affect 25-50% of women of post-menopausal age and significantly impact their quality of life. To examine how gene expression differs between these groups, surface vaginal epithelial cells were collected from postmenopausal women suffering from vaginal dryness and appropriate controls not suffering from dryness. Affymetrix GeneChip Human 1.0 ST microarrays were performed on RNA isolated from ten participants. Suitable RNA was extracted from ten participants which were classified into two groups, the dryness and control groups, based on diagnosis of dryness by a nurse during gynecoligical examination.

ORGANISM(S): Homo sapiens

SUBMITTER: Jordan Bisanz

PROVIDER: E-GEOD-26761 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Vaginal microbiome and epithelial gene array in post-menopausal women with moderate to severe dryness.

Hummelen Ruben R Macklaim Jean M JM Bisanz Jordan E JE Hammond Jo-Anne JA McMillan Amy A Vongsa Rebecca R Koenig David D Gloor Gregory B GB Reid Gregor G

PloS one 20111102 11

After menopause, many women experience vaginal dryness and atrophy of tissue, often attributed to the loss of estrogen. An understudied aspect of vaginal health in women who experience dryness due to atrophy is the role of the resident microbes. It is known that the microbiota has an important role in healthy vaginal homeostasis, including maintaining the pH balance and excluding pathogens. The objectives of this study were twofold: first to identify the microbiome of post-menopausal women with ...[more]

PMID: 22073175

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Vaginal epithelial gene expression in postmenopausal women suffering from vaginal dryness

Project description:The onset of menopause is accompanied by a dramatic increase in reported symptoms of vaginal dryness, soreness, irritation or itching, pain with intercourse and bleeding after intercourse. Collectively these affect 25-50% of women of post-menopausal age and significantly impact their quality of life. To examine how gene expression differs between these groups, surface vaginal epithelial cells were collected from postmenopausal women suffering from vaginal dryness and appropriate controls not suffering from dryness. Affymetrix GeneChip Human 1.0 ST microarrays were performed on RNA isolated from ten participants.

2011-11-12 | GSE26761 | GEO

Homo sapiens

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Effect of L. rhamnosus GR-1 and L. reuteri RC-14 on host responses in a trial of post-menopausal women

Project description:A lactobacilli dominated microbiota in most pre and post-menopausal women is an indicator of vaginal health. A Nugent scoring system serves as a proxy for determining the ratio of lactobacilli to other vaginal inhabitants where a high score usually represents a diseased state, whilst an intermediate score represents a warning zone. The objective of this double blinded, placebo-controlled crossover study was to evaluate in 14 post-menopausal women with an intermediate score, the effect of vaginal administration of probiotic L. rhamnosus GR-1 and L. reuteri RC-14 on the microbiota and host response. The probiotic treatment did not result in changes to clinical parameters such as dryness, irritation and comfort, compared to when placebo was applied. Analysis using 16S rRNA sequencing and metabolomics profiling revealed that the proportional abundance of Lactobacillus was increased following probiotic administration as compared to placebo, which was weakly associated with an increase in lactate levels. Analysis of host responses by microarray showed the probiotics had an immune-modulatory response and multiplex cytokine analysis showed up-regulation of IL-5. This is the first study to use an interactomic approach for the study of vaginal probiotic administration in post-menopausal women. It shows that in some cases multifaceted approaches are required to detect the subtle trigger molecular changes induced by the host to instillation of probiotic strains. A total of 35 total RNA samples extracted from vaginal brushes were analyzed on Affymetrix Gene 2.0 ST arrays from 14 Participants collected over multiple visits including administration of either a probiotic supplement or placebo control.

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Global Expression of Molecular Transporters in the Human Vaginal Tract

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Molecular Analysis of the Vaginal Response to Estrogens in the Ovariectomized Rat and Postmenopausal Woman

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