ArticleJournal of endocrinological investigation2019
Thyroid hormones act as mitogenic and pro survival factors in rat ovarian follicles.
Article in Journal of endocrinological investigation, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 29 citations in OpenAlex.
- Role of TInternational journal of molecular sciences · 2025Article
- Thyroid transcriptomic profiling reveals the differential regulation of lncRNA and mRNA related to prolificacy in Small Tail Han sheep withAnimal biotechnology · 2024Article
- Arsenic-Induced Thyroid Hormonal Alterations and Their Putative Influence on Ovarian Follicles in Balb/c Mice.Biological trace element research · 2024Article
- Role of thyroid stimulating hormone in the maintenance and functioning of the human corpus luteum.Journal of endocrinological investigation · 2024Article
- Disruption of Thyroid Hormone Receptor Thrab Leads to Female Infertility in Zebrafish.Endocrinology · 2024Article
- Article
- IFN-γ differential expression in the hypothalamus-pituitary-ovary axis of thyroidectomized rats.BMC endocrine disorders · 2022Article
- Mammalian cumulus-oocyte complex communication: a dialog through long and short distance messaging.Journal of assisted reproduction and genetics · 2022Review
- A New Perspective on Thyroid Hormones: Crosstalk with Reproductive Hormones in Females.International journal of molecular sciences · 2022Review
- The effects and mechanism of taxanes on chemotherapy-associated ovarian damage: A review of current evidence.Frontiers in endocrinology · 2022Review
- Analysis of in vitro fertilization/intracytoplasmic sperm injection outcomes in infertile women with a history of thyroid cancer: a retrospective study.Reproductive biology and endocrinology : RB&E · 2021Article
- Impact of Thyroid Autoimmunity onFrontiers in endocrinology · 2021Article
- Thyroid hormones T3 and T4 regulate human luteinized granulosa cells, counteracting apoptosis and promoting cell survival.Journal of endocrinological investigation · 2020Article
- Thyroid Hormones and Functional Ovarian Reserve: Systemic vs. Peripheral Dysfunctions.Journal of clinical medicine · 2020Review
- Thyroid Hormone Protects from Fasting-Induced Skeletal Muscle Atrophy by Promoting Metabolic Adaptation.International journal of molecular sciences · 2019Article
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Authors and funding
12 authors at 3 institutions in 1 country.
Funding
Abstract
purposeThyroid disorders are clinically associated with impaired fertility in women, and these abnormalities can be improved by restoring the euthyroid state. The exact mechanisms of thyroid effect on female fertility are not well known; however, it is conceivable that thyroid hormones (THs) might act on ovarian physiology via receptors in granulosa cells. This work is aimed at evaluating the effects of THs on non-tumoral granulosa cells and follicles.
methodsFreshly isolated rat ovarian follicles and granulosa cells were exposed to T3 or T4 (THs). Cell growth and viability were evaluated by cell counting and the MTT assay, respectively, follicle growth was evaluated by volume measurements. Apoptosis was evaluated by the TUNEL assay and active Caspase 3 staining. rGROV cells were exposed to T3, and apoptosis was induced by serum deprivation. Bcl2, Bcl-2-associated X protein (BAX), Akt and pAkt expression were evaluated by western blot.
resultsT3 induced a 40% increase in follicle volume (after 7 days). This increase was presumably due to the observed decrease (33%) in the apoptotic rate of the granulosa cell population. Both T3 and T4 caused a dose-dependent increase in rat granulosa cell number and viability. In addition, THs decreased the cell apoptotic rate in a dose-dependent manner. In both conditions, T3 appeared to be more efficient. In rGROV cells, 100 nM T3 induced cell growth and, in the absence of growth factors, reduced cell apoptosis by 40%, downregulating Caspase 3 and BAX. This effect was associated with an increase in pAkt levels. The involvement of the PI3 K pathway was confirmed by the ability of the PI3 K specific inhibitor (LY-294,002) to abolish T3 pro-survival action.
conclusionsTHs influence cell survival of ovarian granulosa cells. This effect likely contributes to the TH-induced follicle volume increase.
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