Dataset Information

Thyroid Dysfunction after Gonadotropin-Releasing Hormone Agonist Administration in Women with Thyroid Autoimmunity.

ABSTRACT: GnRH agonists (GnRHa) are a useful tool for pretreatment before artificial endometrial preparation for frozen-thawed embryo-transfer (FET). Their prolonged administration has been associated with thyroid dysfunction, both hyper and hypothyroidism. The aim of this study is to investigate the impact of GnRHa administration on thyroid function in women undergoing artificial endometrial preparation. Seventy-eight euthyroid women undergoing endometrial preparation with hormone replacement for FET were retrospectively reviewed. They were divided into two groups according to pretreatment with GnRHa (group A, 42 women) or with an oral contraceptive (group B, 36 women). Group A was subsequently divided into two subgroups according to thyroid autoimmunity presence. Thyroid function has been evaluated and compared among groups and subgroups. Our results did not show any statistically significant differences in age, body mass index, and basal thyroid stimulating hormone (TSH). Total estradiol dosage, duration of treatment, and endometrial thickness were comparable among groups. When TSH was measured 14 days after embryo transfer, no significant differences between the two groups were reported. Among women of group A, TSH was significantly higher only in women with thyroid autoimmunity. GnRHa seems to be associated with thyroid dysfunction in women with thyroid autoimmunity undergoing hormone replacement therapy for FET.

SUBMITTER: Marin L

PROVIDER: S-EPMC9019438 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature

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Thyroid Dysfunction after Gonadotropin-Releasing Hormone Agonist Administration in Women with Thyroid Autoimmunity.

Marin Loris L Ambrosini Guido G Noventa Marco M Filippi Flavia F Ragazzi Eugenio E Dessole Francesco F Capobianco Giampiero G Andrisani Alessandra A

International journal of endocrinology 20220412

GnRH agonists (GnRHa) are a useful tool for pretreatment before artificial endometrial preparation for frozen-thawed embryo-transfer (FET). Their prolonged administration has been associated with thyroid dysfunction, both hyper and hypothyroidism. The aim of this study is to investigate the impact of GnRHa administration on thyroid function in women undergoing artificial endometrial preparation. Seventy-eight euthyroid women undergoing endometrial preparation with hormone replacement for FET wer ...[more]

PMID: 35465072

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Project description:BackgroundThe main objective of the present work was to compare the effects of the gonadotropin-releasing hormone agonist (GnRH-a) and GnRH antagonist (GnRH-ant) on the gene expression profiles of oocytes obtained from Iranian infertile couples undergoing in vitro fertilization (IVF).MethodsFifty infertile couples who underwent IVF between June 2012 and November 2013 at the Infertility Center of Tehran Women General Hospital, Tehran University of Medical Sciences, were included in this study. We included women that had undergone IVF treatment because of male factor, tubal factor, or unexplained infertility. The women randomly underwent controlled ovarian stimulation (COS) with either the GnRH-a (n = 26) or the GnRH-ant (n = 24). We obtained 50 germinal vesicle (GV) oocytes donated by women in each group. After the sampling, pool of 50 GV oocytes for each group was separately analyzed by quantitative polymerase chain reaction (qPCR).ResultThe expression levels of Adenosine triphosphatase 6 (ATPase 6), Bone morphogenetic protein 15 (BMP15), and Neuronal apoptosis inhibitory protein (NAIP) genes were significantly upregulated in the GnRH-ant group compared to the GnRH-a group, with the fold change of 3.990 (SD ± 1.325), 6.274 (SD ± 1.542), and 2.156 (SD ± 1.443), respectively, (P < 0.001). Growth differentiation factor 9 (GDF9) mRNA did not have any expression in the GnRH-a group; however, GDF9 mRNA was expressed in the GnRH-ant group. Finally, it was found that the genes involved in the DNA repairing and cell cycle checkpoint did not have any expression in either group.ConclusionThe present study showed, for the first time, the expression levels of genes involved in the cytoplasmic maturity (BMP15, GDF9), adenosine triphosphate production (ATPase 6), and antiapoptotic process (NAIP), in human GV oocytes were significantly higher in the GnRH-anta group than in the GnRH-a group in COS. Higher expression level of these genes when GnRH-ant protocol is applied, this protocol seems to be a more appropriate choice for women with poly cystic ovarian syndrome, because it can probably improve the expression of the aforementioned genes.Trial registrationCurrent Controlled Trials: IRCT 2014031112307 N3.

Project description:Gonadotropin-releasing hormone agonist (GnRHa) appears to exhibit ovarian protection during chemotherapy for malignant tumors. The purpose of this study was to analyze the benefits of GnRHa in premenopausal women undergoing hematopoietic cell transplantation (HSCT). Candidates for myeloablative chemotherapy HSCT requiring fertility preservation in the Gynecological Endocrinology Clinic of Peking University People's Hospital from December 2011 to December 2021 were retrospectively analyzed. Patients who chose to receive GnRHa treatment were given at least 2 courses of a 3.75-mg dose of a GnRHa before myeloablative chemotherapy, and patients who chose not to receive GnRHa treatment were included in the control group. All patients were monitored for menstruation return and menopause-related symptoms, and ovarian function tests [follicle-stimulating hormone (FSH), luteinizing hormone, and estradiol] were performed 6-12 months after HSCT. In addition, we assessed the vaginal bleeding of patients in the laminar air-flow room (LAFR). A total of 234 cases were included in this study: 77 cases in the treatment group and 157 cases in the control group. The incidence of vaginal bleeding in the LAFR in the treatment group was significantly lower than that in the control group (24.68% vs. 79.62%, P < 0.001). The menopausal symptoms of the patients in the treatment group were reduced after transplantation (46.75% vs. 19.75%, P < 0.001). There was no difference in visible follicles by follow-up ultrasound in the two groups after HSCT (16.88% vs. 13.38%, P = 0.474). The level of FSH at 6-12 months after transplantation was lower (98.00 mIU/ml vs. 117.53 mIU/ml, P = 0.001). The proportion of patients with FSH < 40 mIU/ml did not differ between the two groups. One patient in the treatment group recovered spontaneous menstruation, while none recovered spontaneous menstruation in the control group (1.30% vs. 0%, P = 0.329). The use of GnRHa may relieve menopause-related symptoms and reduce vaginal bleeding in the LAFR and breakthrough bleeding after transplantation. GnRHa treatment can reduce the level of FSH after myeloablative chemotherapy, but it cannot reduce the incidence of premature ovarian failure in women of reproductive age following myeloablative HSCT.

Dataset Information

Thyroid Dysfunction after Gonadotropin-Releasing Hormone Agonist Administration in Women with Thyroid Autoimmunity.

Publications

Thyroid Dysfunction after Gonadotropin-Releasing Hormone Agonist Administration in Women with Thyroid Autoimmunity.

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