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Liu Z, Wang KH. Effect of basal luteinizing hormone (bLH) level on in vitro fertilization/intra-cytoplasmic injections (IVF/ICSI) outcomes in polycystic ovarian syndrome (PCOS) patients. BMC Pregnancy Childbirth 2023; 23:618. [PMID: 37644399 PMCID: PMC10466855 DOI: 10.1186/s12884-023-05944-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 08/22/2023] [Indexed: 08/31/2023] Open
Abstract
OBJECTIVE To evaluate the effect of basal luteinizing hormone (bLH) levels on In Vitro Fertilization/Intra-Cytoplasmic Injections (IVF/ICSI) outcomes in polycystic ovary syndrome (PCOS). METHODS A total of 256 PCOS patients who underwent IVF/ICSI treatment in our center from January 2018 to January 2022 were analyzed retrospectively. The patients were based on the third quartile (12.455) of the basal LH value was taken as the cut-off value and was divided into high and low LH group: high LH group (LH ≥ 12.455 IU / L) and low LH group (LH < 12.455 IU / L) and the OC group was pretreated with oral contraceptives. The outcomes in ovulation induction and embryo transfer cycles of the three groups were then compared. In addition, factors influencing the number of good quality embryos and the early onset LH peak were analyzed. RESULTS Ages, infertility duration, body mass index (BMI), and basal follicle-stimulating hormone (FSH), and progesterone (P), testosterone (T) levels were not significantly different among the three groups (p > 0.05). However,there were significant differences in basal LH and basal E2 between low LH group and high LH group, and there were significant differences in basal LH between high LH group and OC group (p < 0.05). LH on the antagonist day was significantly different between low LH group and high LH group and between high LH group and OC group (p < 0.05). LH on the hCG (human Chorionic Gonadotropin) day there were significant differences between low LH group and OC group, high LH group and OC group (p < 0.05). The Mode of triggering between the three groups had significant differences between the two groups (p < 0.05). In addition, the number of days from gonadotropin (Gn) initiation to antagonist addition were significantly different among the three groups (p < 0.05). In addition, total Gn doses,the number of oocytes retrieved, the number of Gn days, 2pronucleus (2PN) numbers, number of good quality embryos, and number of high risk OHSS (Ovarian Hyper-stimulation Syndrome), cases with OHSS occurrences were not significantly different among the three groups (p > 0.05). Moreover, the cycle and clinical pregnancy outcomes and the cumulative clinical pregnancy rate and the cumulative live birth rate were not significantly different among the three groups (p > 0.05). LH levels on the day of antagonist addition affected the number of good-quality embryos (B < 0, p < 0.05). However, LH levels on the day antagonist was added were not significantly correlated with basal LH levels (Pearson correlation coefficient = 0.259), the ROC curve was constructed for the logistic prediction model of the early onset LH peak, and the AUC value was 0.747, indicating that the logistic combined model we constructed had a good ability to predict the early onset LH peak. CONCLUSION Basal LH levels do not affect the pregnancy outcomes in PCOS patients after antagonist protocols. Besides, LH levels on the day of antagonist addition affect the number of good quality embryos for PCOS patients undergoing IVF /ICSI.
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Affiliation(s)
- Zhuo Liu
- The First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Ke-Hua Wang
- Reproduction and Genetics Center, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China.
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2
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Ganer Herman H, Horowitz E, Mizrachi Y, Farhi J, Raziel A, Weissman A. Prediction, assessment, and management of suboptimal GnRH agonist trigger: a systematic review. J Assist Reprod Genet 2022; 39:291-303. [PMID: 35306603 PMCID: PMC8956771 DOI: 10.1007/s10815-021-02359-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 11/15/2021] [Indexed: 02/03/2023] Open
Abstract
PURPOSE This systematic review aimed to identify baseline patient demographic and controlled ovarian stimulation characteristics associated with a suboptimal response to GnRHa triggering, and available options for prevention and management of suboptimal response. METHODS PubMed, Google Scholar, Medline, and the Cochrane Library were searched for keywords related to GnRHa triggering, and peer-reviewed articles from January 2000 to September 2021 included. RESULTS Thirty-seven studies were included in the review. A suboptimal response to GnRHa triggering was more likely following long-term or recent oral contraceptive use and with a low or high body mass index. Low basal serum follicle-stimulating hormone (FSH), luteinizing hormone (LH), and estradiol serum levels were correlated with suboptimal oocyte yield, as was a low serum LH level on the day of triggering. A prolonged stimulation period and increased gonadotropin requirements were correlated with suboptimal response to triggering. Post-trigger LH < 15 IU/L best correlated with an increased risk for empty follicle syndrome and a lower oocyte retrieval rate. Retriggering with hCG may be considered in patients with suboptimal response according to post-trigger LH, as in cases of failed aspiration. CONCLUSION Pre-treatment assessment of patient characteristics, with pre- and post-triggering assessment of clinical and endocrine cycle characteristics, may identify cases at risk for suboptimal response to GnRHa triggering and optimize its utilization.
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Affiliation(s)
- Hadas Ganer Herman
- grid.12136.370000 0004 1937 0546In Vitro Fertilization Unit, Edith Wolfson Medical Center, Holon, Israel, affiliated with the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Eran Horowitz
- grid.12136.370000 0004 1937 0546In Vitro Fertilization Unit, Edith Wolfson Medical Center, Holon, Israel, affiliated with the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yossi Mizrachi
- grid.12136.370000 0004 1937 0546In Vitro Fertilization Unit, Edith Wolfson Medical Center, Holon, Israel, affiliated with the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Jacob Farhi
- grid.12136.370000 0004 1937 0546In Vitro Fertilization Unit, Edith Wolfson Medical Center, Holon, Israel, affiliated with the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Arieh Raziel
- grid.12136.370000 0004 1937 0546In Vitro Fertilization Unit, Edith Wolfson Medical Center, Holon, Israel, affiliated with the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ariel Weissman
- grid.12136.370000 0004 1937 0546In Vitro Fertilization Unit, Edith Wolfson Medical Center, Holon, Israel, affiliated with the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Abstract
Mammalian reproductive function is a complex system of many players orchestrated by the hypothalamus-pituitary-gonadal (HPG) axis. The hypothalamic gonadotropin-releasing hormone (GnRH) and the consequent pituitary gonadotropin release show two modes of secretory patterns, namely the surge and pulse modes. The surge mode is triggered by the positive feedback action of estrogen secreted from the mature ovarian follicle to induce ovulation in females of most mammalian species. The pulse mode of GnRH release is required for stimulating tonic gonadotropin secretion to drive folliculogenesis, spermatogenesis and steroidogenesis and is negatively fine-tuned by the sex steroids. Accumulating evidence suggests that hypothalamic kisspeptin neurons are the master regulator for animal reproduction to govern the HPG axis. Specifically, kisspeptin neurons located in the anterior hypothalamus, such as the anteroventral periventricular nucleus (AVPV) in rodents and preoptic nucleus (POA) in ruminants, primates and others, and the neurons located in the arcuate nucleus (ARC) in posterior hypothalamus in most mammals are considered to play a key role in generating the surge and pulse modes of GnRH release, respectively. The present article focuses on the role of AVPV (or POA) kisspeptin neurons as a center for GnRH surge generation and of the ARC kisspeptin neurons as a center for GnRH pulse generation to mediate estrogen positive and negative feedback mechanisms, respectively, and discusses how the estrogen epigenetically regulates kisspeptin gene expression in these two populations of neurons. This article also provides the mechanism how malnutrition and lactation suppress GnRH/gonadotropin pulses through an inhibition of the ARC kisspeptin neurons. Further, the article discusses the programming effect of estrogen on kisspeptin neurons in the developmental brain to uncover the mechanism underlying the sex difference in GnRH/gonadotropin release as well as an irreversible infertility induced by supra-physiological estrogen exposure in rodent models.
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Affiliation(s)
- Hiroko Tsukamura
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan.
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4
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Su Y, Tian Z, Qi X, Luo D, Liu L, Liu S, Zheng D, Wei F, He Z, Guan Q. Effects of increasing intake of soybean oil on synthesis of testosterone in Leydig cells. Nutr Metab (Lond) 2021; 18:53. [PMID: 34039393 PMCID: PMC8157704 DOI: 10.1186/s12986-021-00580-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 05/18/2021] [Indexed: 11/24/2022] Open
Abstract
Background Soybean oil is a very common edible oil in daily life. With the changes in the dietary composition, the intake of soybean oil increased. However, the effects of dietary intake of soybean oil on testosterone production are still unclear. Methods In order to study the effects of increasing intake of soybean oil on the synthesis of testosterone in Leydig cells, we fed male C57BL/6 mice on the diet which added 20% soybean salad oil (SOY group). We detected the hormone levels by enzyme-linked immunosorbent assay (ELISA) kits and serum fatty acid composition by gas chromatography, and analyzed the expression of steroidogenic enzymes by Real-Time PCR or immunoblotting analysis. Results After the 16-week feeding period, serum linoleic acid (LA) and α-linolenic acid (ALA) significantly increased and serum palmitic acid (PA) significantly decreased in SOY group mice. Compared to the normal diet (ND group), increasing intake of soybean oil raised the luteinizing hormone (LH) levels and up-regulated luteinizing hormone/chorionic gonadotropin receptor (LHCGR), steroidogenic acute regulatory protein (StAR) and cytochrome P450 family 11 subfamily A member I (CYP11A1). Testosterone levels in SOY group were higher than that in the ND group, and significantly difference showed. Conclusions Increasing intake of soybean oil could raise the serum LA and ALA levels and decrease serum PA levels. This could activate the LH/LHCGR pathway and improve the function of steroid synthesis in Leydig cells, and finally lead to the elevated testosterone levels. Supplementary Information The online version contains supplementary material available at 10.1186/s12986-021-00580-1.
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Affiliation(s)
- Yu Su
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, Shandong, China.,Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, 250021, Shandong, China
| | - Zhenhua Tian
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, Shandong, China.,Department of Endocrinology and Metabolism, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Xiangyu Qi
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, Shandong, China.,Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, 250021, Shandong, China
| | - Dandan Luo
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, Shandong, China.,Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, 250021, Shandong, China
| | - Luna Liu
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, Shandong, China.,Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, 250021, Shandong, China
| | - Shuang Liu
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, Shandong, China.,Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, 250021, Shandong, China
| | - Dongmei Zheng
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, Shandong, China.,Department of Endocrinology and Metabolism, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Fang Wei
- Department of Clinical Expert, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Zhao He
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, Shandong, China. .,Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, 250021, Shandong, China. .,Department of Endocrinology and Metabolism, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China.
| | - Qingbo Guan
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, Shandong, China. .,Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, 250021, Shandong, China. .,Department of Endocrinology and Metabolism, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China.
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Umemori Y, Murai R, Asanuma K, Takahashi Y, Kuno Y, Saito T, Takahashi S. Luteinizing hormone (LH) formed a complex with an immunoglobulin G caused abnormally high levels of LH: A case report. Clin Biochem 2021; 93:33-35. [PMID: 33771567 DOI: 10.1016/j.clinbiochem.2021.03.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/24/2021] [Accepted: 03/16/2021] [Indexed: 11/16/2022]
Abstract
We encountered a 30-year-old woman with remarkably elevated luteinizing hormone (LH) levels, as measured by electrochemiluminescent immunoassay (ECLIA), and no specific symptoms. We performed the following investigations: dilution linearity test, polyethylene glycol (PEG) precipitation test, immunoprecipitation test, protein G addition test, and high-performance liquid chromatography (HPLC) analysis. The linearity of patient's serum was similar to that of a standard LH preparation, and non-specific reactions were not observed. The recovery rate of LH shown by the PEG precipitation test, immunoprecipitation test, and protein G addition test was low. Moreover, an abnormal peak in HPLC was located at a slightly larger molecular weight position than that of IgG. These results showed the presence of macro-LH, LH, and anti-LH-IgG autoantibody complex and suggested that the clearance of LH from the blood was delayed due to IgG binding, and therefore, the LH value was falsely high. We should keep the possibility of macro-LH in mind in cases of unexpectedly high LH values.
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Affiliation(s)
- Yoshifumi Umemori
- Division of Laboratory Medicine, Sapporo Medical University Hospital, Japan
| | - Ryosei Murai
- Division of Laboratory Medicine, Sapporo Medical University Hospital, Japan
| | - Koichi Asanuma
- Division of Laboratory Medicine, Sapporo Medical University Hospital, Japan
| | - Yusuke Takahashi
- Department of Clinical Laboratory Science, School of Medical Technology, Health Science University of Hokkaido, Japan
| | - Yoshika Kuno
- Department of Obstetrics and Gynecology, Sapporo Medical University School of Medicine, Japan
| | - Tsuyoshi Saito
- Department of Obstetrics and Gynecology, Sapporo Medical University School of Medicine, Japan
| | - Satoshi Takahashi
- Division of Laboratory Medicine, Sapporo Medical University Hospital, Japan; Department of Infection Control and Laboratory Medicine, Sapporo Medical University School of Medicine, Japan.
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6
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Lv PP, Jin M, Rao JP, Chen J, Wang LQ, Huang CC, Yang SQ, Yao QP, Feng L, Shen JM, Feng C. Role of anti-Müllerian hormone and testosterone in follicular growth: a cross-sectional study. BMC Endocr Disord 2020; 20:101. [PMID: 32641160 PMCID: PMC7341602 DOI: 10.1186/s12902-020-00569-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 06/08/2020] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Anti-Müllerian hormone (AMH) is now considered the best serum biomarker of ovarian reserve, while basal sex hormones are classic markers used for assessing ovarian reserve. The interaction between AMH and sex hormones are complicated and not sufficiently addressed. In this study, we took diminished ovarian reserve (DOR) and polycystic ovarian syndrome (PCOS) as two extremes of ovarian reserve (deficient and excessive respectively) to investigate the role of AMH and sex hormones in follicular growth. METHODS A retrospective cross-sectional survey was performed. The patients assessed AMH and basal sex hormones in the Second Hospital of Zhejiang University from April 2016 to March 2019 were involved in this study. Serum AMH and sex hormone concentrations were tested with electrochemiluminescence method. Stepwise linear regression and binary logistic regression was used to determine the predictors of AMH level and to explore the involved factors determining DOR and PCOS. RESULTS In the present study, we found that age and follicle-stimulating hormone (FSH) were main negative correlation factors, and luteinizing hormone (LH) and testosterone (T) were main positive factors of AMH. In DOR group, age, FSH and estradiol (E2) increased and T decreased, while in PCOS group, LH and T increased. Binary logistic regression found that age, weight, FSH, E2, and T were the significant factors which independently predicted the likelihood of DOR, and that age, body mass index (BMI), AMH, LH, and T predicted the likelihood of PCOS. CONCLUSIONS Our study demonstrated that age, FSH, and T were factors that most closely correlated with AMH level, and T was involved in both DOR and PCOS. Since DOR and PCOS are manifested with insufficient AMH and excessive AMH respectively, it is suggested that total testosterone correlated with AMH closely and plays an important role in follicular growth. More attention should be given to testosterone level during controlled ovarian hyperstimulation (COH) process.
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Affiliation(s)
- Ping-Ping Lv
- The Women's Hospital of Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China
| | - Min Jin
- The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
| | - Jin-Peng Rao
- The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
| | - Jian Chen
- The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
| | - Li-Quan Wang
- The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
| | - Chang-Chang Huang
- The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
| | - Song-Qing Yang
- The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
| | - Qiu-Ping Yao
- The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
| | - Lei Feng
- The First Affiliated Hospital of Zhejiang Chinese Medicine University, Hangzhou, 310006, Zhejiang, China
| | - Jin-Ming Shen
- The First Affiliated Hospital of Zhejiang Chinese Medicine University, Hangzhou, 310006, Zhejiang, China
| | - Chun Feng
- The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.
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Ogura-Ochi K, Itoshima K, Kamada Y, Otsuka F. Macromolecules detected in highly increased serum luteinizing hormone. J Endocrinol Invest 2020; 43:865-866. [PMID: 32125651 DOI: 10.1007/s40618-020-01191-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 01/27/2020] [Indexed: 10/24/2022]
Affiliation(s)
- K Ogura-Ochi
- Endocrine Center, Okayama University Hospital, 2-5-1 Shikata-cho, Kitaku, Okayama, 700-8558, Japan
| | - K Itoshima
- Laboratory Medicine, Okayama University Hospital, 2-5-1 Shikata-cho, Kitaku, Okayama, 700-8558, Japan
| | - Y Kamada
- Department of Obstetrics and Gynecology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kitaku, Okayama, 700-8558, Japan
| | - F Otsuka
- Endocrine Center, Okayama University Hospital, 2-5-1 Shikata-cho, Kitaku, Okayama, 700-8558, Japan.
- Laboratory Medicine, Okayama University Hospital, 2-5-1 Shikata-cho, Kitaku, Okayama, 700-8558, Japan.
- Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kitaku, Okayama, 700-8558, Japan.
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Deura C, Moriyama R. Short-term but not long-term high-fat diet induces an increase in gene expression of gonadotropic hormones and GPR120 in the male mouse pituitary gland. J Reprod Dev 2020; 66:143-148. [PMID: 31902809 PMCID: PMC7175384 DOI: 10.1262/jrd.2019-144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
High-fat diet (HFD) is associated with the regulation of reproductive functions. This study aimed to investigate the effects of short-term HFD on the mRNA expression levels of
follicle-stimulating hormone β subunit (FSHβ), luteinizing hormone β subunit (LHβ), gonadotropin-releasing hormone receptor, and long-chain fatty acid receptor, GPR120, in the matured male
mouse pituitary gland. Adult male mice were fed either control chow or HFD for 1, 2, 5, 10, 30 and 150 days. Fshb and Gpr120 mRNA expression levels in the
pituitary glands were significantly increased during 2 to 30 days of HFD feeding. Gnrh-r mRNA in the 30 days HFD fed group and body weight in the 30 and 150 days HFD fed
groups were higher than control. However, there were no significant differences in plasma non-esterified fatty acids or glucose levels during the 150 days of HFD feeding. These results
suggest that male mice feeding a short-term HFD induces FSHβ synthesis and GPR120 expression in their pituitary gonadotropes.
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Affiliation(s)
- Chikaya Deura
- Laboratory of Environmental Physiology, Department of Life Science, School of Science and Engineering, Kindai University, Osaka 577-8502, Japan
| | - Ryutaro Moriyama
- Laboratory of Environmental Physiology, Department of Life Science, School of Science and Engineering, Kindai University, Osaka 577-8502, Japan
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9
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Moriyama R, Iwamoto K, Hagiwara T, Yoshida S, Kato T, Kato Y. AMP-activated protein kinase activation reduces the transcriptional activity of the murine luteinizing hormone β-subunit gene. J Reprod Dev 2019; 66:97-104. [PMID: 31813919 PMCID: PMC7175385 DOI: 10.1262/jrd.2019-143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Malnutrition is one of the factors that induces reproductive disorders. However, the underlying biological processes are unclear. AMP-activated protein kinase (AMPK) is an enzyme that plays crucial role as a cellular energy sensor. In the present study, we examined the effects of AMPK activation on the transcription of the murine gonadotropin subunit genes Cga, Lhb, and Fshb, and the gonadotropin-releasing hormone receptor Gnrh-r. Real-time PCR and transcription assay using LβT2 cells demonstrated that 5-amino-imidazole carboxamide riboside (AICAR), a cell-permeable AMP analog, repressed the expression of Lhb. Next, we examined deletion mutants of the upstream region of Lhb and found that the upstream regulatory region of Lhb (-2527 to -2198 b) was responsible for the repression by AICAR. Furthermore, putative transcription factors (SP1, STAT5a, and TEF) that might mediate transcriptional control of the Lhb repression induced by AICAR were identified. In addition, it was confirmed that both AICAR and a competitive inhibitor of glucose metabolism, 2-deoxy-D-glucose, induced AMPK phosphorylation in LβT2 cells. Therefore, the upstream region of Lhb is one of the target sites for glucoprivation inducing AMPK activation. In addition, AMPK plays a role in repressing Lhb expression through the distal -2527 to -2198 b region.
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Affiliation(s)
- Ryutaro Moriyama
- Laboratory of Environmental Physiology, Department of Life Science, School of Science and Engineering, Kindai University, Osaka 577-8502, Japan
| | - Koichi Iwamoto
- Laboratory of Environmental Physiology, Department of Life Science, School of Science and Engineering, Kindai University, Osaka 577-8502, Japan
| | - Teruki Hagiwara
- Laboratory of Molecular and Cellular Biology, Department of Life Science, School of Science and Engineering, Kindai University, Osaka 577-8502, Japan
| | - Saishu Yoshida
- Department of Biochemistry, The Jikei University School of Medicine, Tokyo 105-8461, Japan.,Laboratory of Molecular Biology and Gene Regulation, Department of Life Science, School of Agriculture, Meiji University, Kanagawa 214-8571, Japan
| | - Takako Kato
- Laboratory of Molecular Biology and Gene Regulation, Department of Life Science, School of Agriculture, Meiji University, Kanagawa 214-8571, Japan
| | - Yukio Kato
- Laboratory of Molecular Biology and Gene Regulation, Department of Life Science, School of Agriculture, Meiji University, Kanagawa 214-8571, Japan
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10
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Jia Y, Lei J. Molecular function of gonadotrophins and their receptors in the ovarian development of turbot (Scophthalmus maximus). Gen Comp Endocrinol 2019; 277:17-19. [PMID: 30769011 DOI: 10.1016/j.ygcen.2019.02.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 12/14/2018] [Accepted: 02/11/2019] [Indexed: 11/19/2022]
Abstract
Gonadotropins (GtHs) and their receptors (follicle-stimulating hormone receptor, FSHR; luteinizing hormone receptor, LHR) are involved in the regulation of gametogenesis and play important roles during the reproductive cycles in vertebrate species, including fish. This minireview focuses on the molecular characterization and quantification of GtHs (common glycoprotein α subunit CGα, FSHβ, and LHβ) and their receptors (FSHR and LHR) throughout the reproductive cycle of female turbot Scophthalmus maximus. Information about GtHs, FSHR, LHR as well as other ligand-receptors interaction from different teleosts are also included in this review for the implications they may have on the functions of GtHs, FSHR and LHR in the reproductive development of turbot. These findings may enhance our understanding of the physiological roles of the GtHs, FSHR and LHR in controlling of flatfish ovarian development during the reproductive cycle and contributing to the improvement of management strategies for turbots in captivity.
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Affiliation(s)
- Yudong Jia
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao Key Laboratory for Marine Fish Breeding and Biotechnology, Qingdao 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China.
| | - Jilin Lei
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao Key Laboratory for Marine Fish Breeding and Biotechnology, Qingdao 266071, China
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Alviggi C, Conforti A, Esteves SC, Andersen CY, Bosch E, Bühler K, Ferraretti AP, De Placido G, Mollo A, Fischer R, Humaidan P. Recombinant luteinizing hormone supplementation in assisted reproductive technology: a systematic review. Fertil Steril 2018; 109:644-664. [PMID: 29653717 DOI: 10.1016/j.fertnstert.2018.01.003] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Revised: 12/08/2017] [Accepted: 01/04/2018] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To assess the role of recombinant human LH (r-hLH) supplementation in ovarian stimulation for ART in specific subgroups of patients. DESIGN Systematic review. SETTING Centers for reproductive care. PATIENT(S) Six populations were investigated: 1) women with a hyporesponse to recombinant human FSH (r-hFSH) monotherapy; 2) women at an advanced reproductive age; 3) women cotreated with the use of a GnRH antagonist; 4) women with profoundly suppressed LH levels after the administration of GnRH agonists; 5) normoresponder women to prevent ovarian hyperstimulation syndrome; and 6) women with a "poor response" to ovarian stimulation, including those who met the European Society for Human Reproduction and Embryology Bologna criteria. INTERVENTION(S) Systematic review. MAIN OUTCOME MEASURE(S) Implantation rate, number of oocytes retrieved, live birth rate, ongoing pregnancy rate, fertilization rate, and number of metaphase II oocytes. RESULT(S) Recombinant hLH supplementation appears to be beneficial in two subgroups of patients: 1) women with adequate prestimulation ovarian reserve parameters and an unexpected hyporesponse to r-hFSH monotherapy; and 2) women 36-39 years of age. Indeed, there is no evidence that r-hLH is beneficial in young (<35 y) normoresponders cotreated with the use of a GnRH antagonist. The use of r-hLH supplementation in women with suppressed endogenous LH levels caused by GnRH analogues and in poor responders remains controversial, whereas the use of r-hLH supplementation to prevent the development of ovarian hyperstimulation syndrome warrants further investigation. CONCLUSION(S) Recombinant hLH can be proposed for hyporesponders and women 36-39 years of age.
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Affiliation(s)
- Carlo Alviggi
- Department of Neuroscience, Reproductive Science and Odontostomatology, University of Naples Federico II, Naples, Italy.
| | - Alessandro Conforti
- Department of Neuroscience, Reproductive Science and Odontostomatology, University of Naples Federico II, Naples, Italy
| | - Sandro C Esteves
- Androfert, Andrology and Human Reproduction Clinic, São Paulo, Brazil
| | - Claus Yding Andersen
- Laboratory of Reproductive Biology, University Hospital of Copenhagen, Faculty of Health and Medical Sciences, Copenhagen, Denmark
| | - Ernesto Bosch
- Instituto Valenciano de Infertilidad, Valencia, Spain
| | - Klaus Bühler
- Center for Gynecology, Endocrinology, and Reproductive Medicine, Ulm and Stuttgart, Germany
| | | | - Giuseppe De Placido
- Department of Neuroscience, Reproductive Science and Odontostomatology, University of Naples Federico II, Naples, Italy
| | - Antonio Mollo
- Department of Neuroscience, Reproductive Science and Odontostomatology, University of Naples Federico II, Naples, Italy
| | | | - Peter Humaidan
- Fertility Clinic, Skive Regional Hospital, Skive, Denmark, and Faculty of Health, Aarhus University, Aarhus, Denmark
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Hollinshead F, Hanlon D. Normal progesterone profiles during estrus in the bitch: A prospective analysis of 1420 estrous cycles. Theriogenology 2018; 125:37-42. [PMID: 30388469 DOI: 10.1016/j.theriogenology.2018.10.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 10/12/2018] [Accepted: 10/20/2018] [Indexed: 12/14/2022]
Abstract
Appropriate timing of insemination in the bitch, through monitoring of serial serum progesterone concentrations, has historically been based on the detection of important physiological reproductive events which include the LH surge and ovulation 2-3 days later. Previous hormone profile studies during the estrus period in the bitch, in which determination of these physiological reproductive events has been defined, have been based on low numbers of bitches of similar breeds and body weights. Therefore, the aim of this large-scale prospective study was to define the normal serum progesterone profile during the estrus period in a large number of bitches of various breeds and body weights. In addition, we investigated if the rate of change in progesterone concentrations during the fertile period affected the reproductive performance of bitches after insemination with either fresh or frozen-thawed semen. A total of 1300 individual bitches, representing 84 different breeds, contributed 1420 estrous cycles and 4213 serum progesterone values over the 11-year (2007-2017) study period. The mean (±SD) progesterone concentration at estimated LH0 was 2.7 ± 0.6 ng/ml and at the time of estimated ovulation it was 4.8 ± 0.9 ng/ml and 7.2 ± 1.3 ng/ml (LH+2 and LH+3 respectively). There was no difference in the shape of progesterone profiles for bitches of different body weights. Furthermore, mean progesterone concentrations on each day between LH-6 and LH+7 were not different amongst bitches of different breeds and body weights and there was no effect of mean progesterone concentrations on any day on whelping rate or litter size. However, there was a significant effect of the rate of change in progesterone concentrations on litter size when frozen semen was used. The litter sizes of bitches inseminated with frozen semen with slow progesterone curves were significantly smaller compared to bitches with fast progesterone curves (3.9 ± 1.8 vs 5.6 ± 3.1 pups per litter respectively; P < 0.001). There was no effect of bitch age on the normal progesterone curve, or its rate of change. This is the first report of the normal progesterone profile during estrus in the bitch derived from a large number of serial progesterone measurements obtained from bitches of various breeds and body weights. Importantly, the predictability and reliability of this progesterone profile regardless of breed or body weight gives clinicians the confidence to accurately determine the optimal time for insemination, which is critical to reproductive success, especially when frozen semen is used.
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Affiliation(s)
- Fk Hollinshead
- GlenBred, Matamata Veterinary Services, 26 Tainui St, Matamata, 3400, New Zealand.
| | - Dw Hanlon
- GlenBred, Matamata Veterinary Services, 26 Tainui St, Matamata, 3400, New Zealand
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Abstract
Kisspeptin, identified as a natural ligand of GPR54 in 2001, is now considered as a master regulator of puberty and subsequent reproductive functions in mammals. Our previous studies using
Kiss1 knockout (KO) rats clearly demonstrated the indispensable role of kisspeptin in gonadotropin-releasing hormone (GnRH)/gonadotropin secretion. In addition, behavioral
analyses of Kiss1 KO rats revealed an organizational effect of kisspeptin on neural circuits controlling sexual behaviors. Our studies using transgenic mice carrying a
region-specific Kiss1 enhancer-driven reporter gene provided a clue as to the mechanism by which estrogen regulates Kiss1 expression in hypothalamic
kisspeptin neurons. Analyses of Kiss1 expression and gonadotropin secretion during the pubertal transition shed light on the mechanism triggering GnRH/gonadotropin secretion
at the onset of puberty in rats. Here, we summarize data obtained from the aforementioned studies and revisit the physiological roles of kisspeptin in the mechanism underlying reproductive
functions in mammals.
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Affiliation(s)
- Yoshihisa Uenoyama
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Naoko Inoue
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Kei-Ichiro Maeda
- Department of Veterinary Medical Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Hiroko Tsukamura
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
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Klett D, Meslin P, Relav L, Nguyen TMD, Mariot J, Jégot G, Cahoreau C, Combarnous Y. Low reversibility of intracellular cAMP accumulation in mouse Leydig tumor cells (MLTC-1) stimulated by human Luteinizing Hormone (hLH) and Chorionic Gonadotropin (hCG). Mol Cell Endocrinol 2016; 434:144-53. [PMID: 27373440 DOI: 10.1016/j.mce.2016.06.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 06/27/2016] [Accepted: 06/28/2016] [Indexed: 11/17/2022]
Abstract
In order to study the intracellular cAMP response kinetics of Leydig cells to hormones with LH activity, we used MLTC-1 cells transiently expressing a chimeric cAMP-responsive luciferase so that real-time variations of intracellular cAMP concentration could be followed using oxiluciferin luminescence produced from catalyzed luciferin oxidation. The potencies of the different LHs and CGs were evaluated using areas under the curves (AUC) of their kinetics over 60 min stimulation. All mammalian LHs and CGs tested were found to stimulate cAMP accumulation in these cells. The reversibility of this stimulation was studied by removing the hormone from the culture medium after 10 min of incubation. The ratios of kinetics AUC after removing or not the hormone were used to evaluate the stimulation reversibility of each hormone. Natural and recombinant hLHs and hCGs were found to exhibit slowly reversible activation compared to pituitary rat, ovine, porcine, camel and equine LHs, serum-derived eCG (PMSG) and recombinant eLH/CGs. Carbohydrate side chains are not involved in this phenomenon since natural and recombinant homologous hormones exhibit the same reversibility rates. It is still unknown whether only one human subunit, α or β, is responsible for this behaviour or whether it is due to a particular feature of the hLH and hCG quaternary structure.
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Affiliation(s)
- Danièle Klett
- INRA, CNRS, Physiologie de la Reproduction et des Comportements, 37380 Nouzilly, France
| | - Philippine Meslin
- INRA, CNRS, Physiologie de la Reproduction et des Comportements, 37380 Nouzilly, France
| | - Lauriane Relav
- INRA, CNRS, Physiologie de la Reproduction et des Comportements, 37380 Nouzilly, France
| | - Thi Mong Diep Nguyen
- INRA, CNRS, Physiologie de la Reproduction et des Comportements, 37380 Nouzilly, France; Quy Nhon University, Viet Nam
| | - Julie Mariot
- INRA, CNRS, Physiologie de la Reproduction et des Comportements, 37380 Nouzilly, France
| | - Gwenhaël Jégot
- INRA, CNRS, Physiologie de la Reproduction et des Comportements, 37380 Nouzilly, France
| | - Claire Cahoreau
- INRA, CNRS, Physiologie de la Reproduction et des Comportements, 37380 Nouzilly, France
| | - Yves Combarnous
- INRA, CNRS, Physiologie de la Reproduction et des Comportements, 37380 Nouzilly, France.
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Yang Y, Lu XS, Li DL, Yu YJ. Effects of environmental lead pollution on blood lead and sex hormone levels among occupationally exposed group in an E-waste dismantling area. Biomed Environ Sci 2013; 26:474-484. [PMID: 23816581 DOI: 10.3967/0895-3988.2013.06.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 03/22/2012] [Accepted: 10/30/2012] [Indexed: 06/02/2023]
Abstract
OBJECTIVE To study the effects of environmental multi-media lead pollution on blood lead and sex hormone levels among lead exposed males engaged in E-waste dismantling, and the correlation between confounding factors and sex hormone levels. METHODS An E-waste dismantling area in Taizhou of Zhejiang Province was selected as the research site. One hundred and fifty two samples were collected from the groundwater, soil, rice, corn, chicken, and pork in the dismantling area. The effects of the multi-media lead pollution on the male blood lead and sex hormone levels of FSH, LH, and T, as well as the correlation with confounding factors, were studied. RESULTS The blood lead concentrations in the males aged under 31, from 31 to 45 and from 46 to 60 were 98.55, 100.23, and 101.45 μg/L, respectively. Of all the environmental media lead exposures, the groundwater, rice and soil were main contributing factors to the lead accumulation in humans. FSH and LH levels increased with the age while the T levels decreased with the age instead. There was a significant correlation between the FSH and LH levels and wearing masks. CONCLUSION There was correlation between the FSH, LH, and T levels, and the mean values of lead concentrations in environmental media, and the sex hormone levels were correlated with the confounding factor of wearing masks.
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Affiliation(s)
- Yan Yang
- School of Environmental & Safety Engineering, Changzhou University, Changzhou 213164, Jiangsu, China
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Acharya N, Acharya S, Shukla S, Inamdar SA, Khatri M, Mahajan SN. Gonadotropin levels in hypothyroid women of reproductive age group. J Obstet Gynaecol India 2011; 61:550-3. [PMID: 23024528 DOI: 10.1007/s13224-011-0079-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2009] [Accepted: 08/04/2011] [Indexed: 10/16/2022] Open
Abstract
OBJECTIVE To study serum gonadotropin (FSH, LH) levels in cases of subclinical and overt hypothyroid women in reproductive age group. MATERIAL AND METHOD Female patients of reproductive age group attending thyroid clinic of Acharya Vinoba Bhave Hospital were included in the study. Detail menstrual history was taken, and serum FSH and LH levels were estimated by radio immuno assay method. RESULT Eighty patients were included in the study, out of whom 46 (57.5%) had subclinical hypothyroidism and 34 (42.5%) had overt hypothyroidism. In subclinical hypothyroidism group the menstrual dysfunction which dominated in our study was oligomenorrhea (28.2%) followed by menorrhagia (17.39%). 39.13% had normal menstruation. In overt hypothyroidism group again it was oligomenorrhoea (23.5%) which was the principal menstrual abnormality followed by menorrhagia (17.64%). The percentage of females with normal menstruation was 47.05%. The levels of serum FSH and LH were significantly low in cases of both subclinical and overt hypothyroid women. They were significantly low when done between day 2 and 5 of the cycle. CONCLUSION Hypothyroidism decreases levels of serum FSH and serum LH. Subclinical hypothyroidism is one of the major etiological factors of infertility. Autoantibodies against thyroid should be searched for in cases of female patients with infertility.
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