Publications by authors named "Thisun Jayawardana"

Article Synopsis
  • Chemotherapy can lead to premature ovarian insufficiency (CIPOI) in women, causing loss of fertility and no effective treatments currently exist.
  • Fecal microbiota transplantation studies in mice show that an unhealthy gut microbiome contributes to ovarian problems in CIPOI, particularly due to a decrease in certain beneficial bacteria (Limosilactobacillus reuteri) and its byproducts.
  • Supplementing with L. reuteri or its compound β-resorcylic acid (β-RA) helps protect ovarian health, maintains hormone balance, and prevents apoptosis of key ovarian cells, suggesting new avenues for preserving fertility during cancer treatment.
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To accurately define the role of the gut microbiota in health and disease pathogenesis, the preservation of stool sample integrity, in terms of microbial community composition and metabolic function, is critical. This presents a challenge for any studies which rely on participants self-collecting and returning stool samples as this introduces variability and uncertainty of sample storage/handling. Here, we tested the performance of three stool sample collection/preservation buffers when storing human stool samples at different temperatures (room temperature [20 °C], 4 °C and - 80 °C) for up to three days.

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Background: The results of human observational studies on the correlation between gut microbiota perturbations and polycystic ovary syndrome (PCOS) have been contradictory. This study aimed to perform the first systematic review and meta-analysis to evaluate the specificity of the gut microbiota in PCOS patients compared to healthy women.

Methods: Literature through May 22, 2023, was searched on PubMed, Web of Science, Medline, Embase, Cochrane Library, and Wiley Online Library databases.

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Current inflammatory bowel disease (IBD) treatments including non-biological, biological, and nutritional therapies aim to achieve remission and mucosal healing. Treatment efficacy, however, is highly variable, and there is growing evidence that the gut microbiota influences therapeutic efficacy. The aim of this study was to conduct a systematic review and meta-analysis to define changes in the gut microbiota following IBD treatment and to identify microbial predictors of treatment response.

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