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Li XL, Ji YF, Feng Y, Liu SW. Metabolic disparities between obese and non-obese patients with polycystic ovary syndrome: implications for endometrial receptivity indicators. Gynecol Endocrinol 2024; 40:2312895. [PMID: 38444321 DOI: 10.1080/09513590.2024.2312895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 01/25/2024] [Indexed: 03/07/2024] Open
Abstract
OBJECTIVE To investigate the differences in the metabolic indicators and sex hormones between obese and non-obese patients with polycystic ovary syndrome (PCOS), and their impacts on endometrial receptivity (ER). METHODS We selected 255 individuals with PCOS, and categorized them into the obese groups, including the OP group (obese patients with PCOS) and the ON group (obese patients without PCOS), and selected 64 individuals who were categorized in the non-obese groups, namely, the control groups, which comprise the NP group (non-obese patients with PCOS) and the NN group(non-obese patients without PCOS). The one-way analysis of variance (ANOVA) and Mann-Whitney U tests were used to compare the metabolic indicators, and sex hormone-associated and ER-associated indicators between the groups. The correlation between the aforementioned clinical markers and ER was analyzed using the Pearson's correlation coefficient. RESULTS (1) In comparison with the NP group, the OP group exhibited higher levels (p < .01) of free androgen index (FAI), anti-müllerian hormone (AMH), fasting insulin (FINS), insulin level within 60 min, 120 min, and 180 min-60minINS, 120minINS, and 180minINS, respectively, fasting blood glucose (FBG), blood glucose level within two hours (2hGlu), homeostatic model assessment for insulin resistance (HOMA-IR), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), waist-to-hip ratio (WHR), waist circumference, hip circumference, the ratio of the maximum blood flow velocity of the uterine artery during systole to the blood flow velocity of the uterine artery at the end of diastole (uterine artery S/D), and blood flow resistance index (RI) of the uterine artery. In comparison with the NP group, the OP group exhibited lower levels (p < .01) of sex hormone binding globulin (SHBG), dehydroepiandrosterone (DHEA), high molecular weight adiponectin (HMWA), and high-density lipoprotein cholesterol (HDL-C). (2) In the PCOS group, RI was significantly positively correlated with FAI, FINS, 120minINS, HOMA-IR, and WHR (p < .01), and significantly negatively correlated with SHBG, HDL-C, and HMWA (p < .01); uterine artery S/D was significantly positively correlated with FAI, FINS, 2hGlu, HOMA-IR, LDL-C, and WHR (p < .01), significantly positively correlated with 120minINS and FBG (p < .05), and significantly negatively correlated with SHBG and HMWA (p < .01). CONCLUSION (1) The OP group exhibited obvious metabolic disorders and poor ER, which was manifested as low levels of SHBG and HMWA, and high levels of FAI, HOMA-IR, WHR, uterine artery S/D, and RI. (2) In patients with PCOS, there was a substantial correlation between ER-associated indicators RI and uterine artery S/D and FAI, FINS, 120minINS, HOMA-IR, WHR, SHBG, and HMWA.
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Affiliation(s)
- Xiao-Li Li
- Department of Endocrinology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, China
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yan-Fei Ji
- Department of Obstetrics and Gynecology, Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Yu Feng
- Department of Endocrinology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, China
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shi-Wei Liu
- Department of Endocrinology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, China
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Lei R, Chen S, Li W. Advances in the study of the correlation between insulin resistance and infertility. Front Endocrinol (Lausanne) 2024; 15:1288326. [PMID: 38348417 PMCID: PMC10860338 DOI: 10.3389/fendo.2024.1288326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 01/04/2024] [Indexed: 02/15/2024] Open
Abstract
This is a narrative review of the progress of research on the correlation between insulin resistance and infertility. Insulin resistance (IR) is not only involved in the development of various metabolic diseases, but also affects female reproductive function, and to some extent is closely related to female infertility. IR may increase the risk of female infertility by activating oxidative stress, interfering with energy metabolism, affecting oocyte development, embryo quality and endometrial tolerance, affecting hormone secretion and embryo implantation, as well as affecting assisted conception outcomes in infertile populations and reducing the success rate of assisted reproductive technology treatment in infertile populations. In addition, IR is closely associated with spontaneous abortion, gestational diabetes and other adverse pregnancies, and if not corrected in time, may increase the risk of obesity and metabolic diseases in the offspring in the long term. This article provides a review of the relationship between IR and infertility to provide new ideas for the treatment of infertility.
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Affiliation(s)
| | | | - Weihong Li
- Reproductive Medical Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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3
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Li L, Ge H, Zhou J, Wang J, Wang L. Polycystic ovary syndrome and adverse pregnancy outcomes: potential role of decidual function. Drug Discov Ther 2024; 17:378-388. [PMID: 38148009 DOI: 10.5582/ddt.2023.01096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
Polycystic ovary syndrome (PCOS) is a common endocrine disorder affecting fertility and mental health among women of reproductive age. In addition to anovulation and hyperandrogenism, patients also experience metabolic issues, such as insulin resistance, obesity, and dyslipidemia, as well as chronic low-grade inflammation throughout the body. Recent studies have shown that even with assisted reproductive technology to treat anovulatory issues, patients with PCOS still have higher rates of adverse pregnancy outcomes and abortion compared to normal pregnancies. These findings suggest that PCOS may impair the endometrium and disrupt the onset and maintenance of healthy pregnancies. Decidualization is a crucial step in the process of healthy pregnancy, during which endometrial stromal cells (ESCs) differentiate into secretory decidual stromal cells (DSCs) regulated by hormones and local metabolism. This article comprehensively reviews the pathological processes of PCOS and the mechanisms involved in its impaired decidualization. In addition, we explore how PCOS increases the incidence of adverse pregnancy outcomes (APO). By gaining a better understanding of the adverse effects of PCOS on pregnancy and its specific mechanisms, we hope to provide a theoretical basis for reducing APO and improving the live birth rate among women with PCOS.
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Affiliation(s)
- Lisha Li
- Laboratory for Reproductive Immunology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- The Academy of Integrative Medicine of Fudan University, Shanghai, China
- Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
| | - Hanting Ge
- Reproductive Medicine Center, The Fourth Affiliated Hospital Zhejiang University School of Medicine, Yiwu, Zhejiang, China
| | - Jing Zhou
- Laboratory for Reproductive Immunology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- The Academy of Integrative Medicine of Fudan University, Shanghai, China
- Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
| | - Jing Wang
- Laboratory for Reproductive Immunology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- The Academy of Integrative Medicine of Fudan University, Shanghai, China
- Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
| | - Ling Wang
- Laboratory for Reproductive Immunology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- The Academy of Integrative Medicine of Fudan University, Shanghai, China
- Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
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4
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Yu F, Xue Y, Zhao Y, Zhang L, He X, Liu Z. Isorhamnetin inhibits inflammatory response to alleviate DHEA-induced polycystic ovary syndrome in rats. Gynecol Endocrinol 2023; 39:2183045. [PMID: 36842967 DOI: 10.1080/09513590.2023.2183045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/28/2023] Open
Abstract
OBJECTIVE To explore the role of isorhamnetin on polycystic ovary syndrome (PCOS) in rats. METHODS Sprague Dawley (SD) rats were subcutaneously injected with dehydroepiandrosteron (DHEA) to establish PCOS model. Hematoxylin and eosin (H&E) staining and TdT-mediated dUTP Nick-End Labeling (TUNEL) were used to measure histological changes and apoptosis of ovary tissues. The levels of serum hormones and inflammatory factors in ovary tissues were measured by enzyme-linked immuno sorbent assay (ELISA). RESULTS In DHEA-induced PCOS rats, the levels of serum glucose, insulin, testosterone and luteinizing hormone (LH) were enhanced, estradiol (E2), sex hormone-binding globulin (SHBG), follicle stimulating hormone (FSH) levels were decreased, inflammatory levels and apoptosis of ovary tissues were increased. Additionally, DHEA increased the body weight, ovary weight, and ovary volume, cystic follicles, and decreased corpus luteum. Moreover, the tumor necrosis factor (TNF) signaling pathway was activated in PCOS rats. The levels of TNF receptor superfamily member 1 A (TNFR1), TNF-α, and fas cell surface death feceptor (FAS) were enhanced in ovary tissues of DHEA induced PCOS rats. Isorhamnetin (ISO) treatment after DHEA modeling markedly reduced serum levels of glucose, insulin, testosterone and LH, increased E2, SHBG, FSH level, decreased inflammatory levels, and inhibited apoptosis and decreased body weight, ovary weight, and ovary volume. The levels of TNFR1, TNF-α, and FAS were markedly decreased after ISO treatment in PCOS rats. Additionally, ISO alone had no significant effect on rats. CONCLUSION Isorhamnetin inhibits inflammatory response to alleviate DHEA-induced PCOS in rats by inactivating the TNF signaling pathway.
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Affiliation(s)
- Fei Yu
- Department of Traditional Chinese Medicine, Cangzhou People's Hospital, Cangzhou, Hebei, P.R. China
| | - Yanfeng Xue
- Department of Traditional Chinese Medicine, Cangzhou People's Hospital, Cangzhou, Hebei, P.R. China
| | - Yunyan Zhao
- Department of Traditional Chinese Medicine, Cangzhou People's Hospital, Cangzhou, Hebei, P.R. China
| | - Long Zhang
- Department of Traditional Chinese Medicine, Cangzhou People's Hospital, Cangzhou, Hebei, P.R. China
| | - Xiao He
- Department of Traditional Chinese Medicine, Cangzhou People's Hospital, Cangzhou, Hebei, P.R. China
| | - Zheng Liu
- Department of Traditional Chinese Medicine, Cangzhou People's Hospital, Cangzhou, Hebei, P.R. China
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5
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Wang K, Li Y. Signaling pathways and targeted therapeutic strategies for polycystic ovary syndrome. Front Endocrinol (Lausanne) 2023; 14:1191759. [PMID: 37929034 PMCID: PMC10622806 DOI: 10.3389/fendo.2023.1191759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 09/18/2023] [Indexed: 11/07/2023] Open
Abstract
Polycystic ovary syndrome (PCOS) is the most common endocrine disorder among women of reproductive age. Although promising strides have been made in the field of PCOS over the past decades, the distinct etiologies of this syndrome are not fully elucidated. Prenatal factors, genetic variation, epigenetic mechanisms, unhealthy lifestyles, and environmental toxins all contribute to the development of this intricate and highly heterogeneous metabolic, endocrine, reproductive, and psychological disorder. Moreover, interactions between androgen excess, insulin resistance, disruption to the hypothalamic-pituitary-ovary (HPO) axis, and obesity only make for a more complex picture. In this review, we investigate and summarize the related molecular mechanisms underlying PCOS pathogenesis from the perspective of the level of signaling pathways, including PI3K/Akt, TGF-β/Smads, Wnt/β-catenin, and Hippo/YAP. Additionally, this review provides an overview of prospective therapies, such as exosome therapy, gene therapy, and drugs based on traditional Chinese medicine (TCM) and natural compounds. By targeting these aberrant pathways, these interventions primarily alleviate inflammation, insulin resistance, androgen excess, and ovarian fibrosis, which are typical symptoms of PCOS. Overall, we hope that this paper will pave the way for better understanding and management of PCOS in the future.
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Affiliation(s)
- Kexin Wang
- The Second School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yanhua Li
- Department of General Practice, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
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6
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Guo F, Huang Y, Fernando T, Shi Y. Altered Molecular Pathways and Biomarkers of Endometrial Receptivity in Infertile Women with Polycystic Ovary Syndrome. Reprod Sci 2022; 29:3335-3345. [PMID: 35006579 DOI: 10.1007/s43032-022-00845-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 12/31/2021] [Indexed: 12/14/2022]
Abstract
Anovulation is the most prominent cause of infertility in polycystic ovary syndrome (PCOS) patients. Although ovulation can be corrected pharmacologically, the number of pregnancies remains low. Even if excellent embryos are transferred by IVF, it does not change the high miscarriage rate of PCOS patients. These facts collectively indicate that there is a disorder of endometrial development and receptivity to the embryo in PCOS patients, including the decrease of receptive ability, inhibition of embryo adhesion, undersupply of energy, poor blood perfusion, and pro-inflammatory status in the endometrium. However, it has never received the same attention as ovulatory dysfunction. Here we list some alternations of endometrial receptivity in women with PCOS, discuss the underlying intricate mechanisms, and try to find out the possible therapeutic targets, which may bring new perspectives to those who are able to provide high-quality embryos.
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Affiliation(s)
- Fei Guo
- Department of Gynecology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, 200011, China
| | - Yufan Huang
- Department of Pharmacy, Mindong Hospital, Fujian Medical University, Ningde, 355000, Fujian, China
| | - Taniya Fernando
- Department of Gynecology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, 200011, China
| | - Yingli Shi
- Department of Gynecology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, 200011, China.
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Clark KL, George JW, Przygrodzka E, Plewes MR, Hua G, Wang C, Davis JS. Hippo Signaling in the Ovary: Emerging Roles in Development, Fertility, and Disease. Endocr Rev 2022; 43:1074-1096. [PMID: 35596657 PMCID: PMC9695108 DOI: 10.1210/endrev/bnac013] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Indexed: 01/09/2023]
Abstract
Emerging studies indicate that the Hippo pathway, a highly conserved pathway that regulates organ size control, plays an important role in governing ovarian physiology, fertility, and pathology. Specific to the ovary, the spatiotemporal expression of the major components of the Hippo signaling cascade are observed throughout the reproductive lifespan. Observations from multiple species begin to elucidate the functional diversity and molecular mechanisms of Hippo signaling in the ovary in addition to the identification of interactions with other signaling pathways and responses to various external stimuli. Hippo pathway components play important roles in follicle growth and activation, as well as steroidogenesis, by regulating several key biological processes through mechanisms of cell proliferation, migration, differentiation, and cell fate determination. Given the importance of these processes, dysregulation of the Hippo pathway contributes to loss of follicular homeostasis and reproductive disorders such as polycystic ovary syndrome (PCOS), premature ovarian insufficiency, and ovarian cancers. This review highlights what is currently known about the Hippo pathway core components in ovarian physiology, including ovarian development, follicle development, and oocyte maturation, while identifying areas for future research to better understand Hippo signaling as a multifunctional pathway in reproductive health and biology.
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Affiliation(s)
- Kendra L Clark
- Olson Center for Women's Health, Department of Obstetrics and Gynecology, University of Nebraska Medical Center, Omaha, NE 68198, USA.,Veterans Affairs Nebraska Western Iowa Health Care System, Omaha, NE 68105, USA
| | - Jitu W George
- Olson Center for Women's Health, Department of Obstetrics and Gynecology, University of Nebraska Medical Center, Omaha, NE 68198, USA.,Veterans Affairs Nebraska Western Iowa Health Care System, Omaha, NE 68105, USA
| | - Emilia Przygrodzka
- Olson Center for Women's Health, Department of Obstetrics and Gynecology, University of Nebraska Medical Center, Omaha, NE 68198, USA.,Veterans Affairs Nebraska Western Iowa Health Care System, Omaha, NE 68105, USA
| | - Michele R Plewes
- Olson Center for Women's Health, Department of Obstetrics and Gynecology, University of Nebraska Medical Center, Omaha, NE 68198, USA.,Veterans Affairs Nebraska Western Iowa Health Care System, Omaha, NE 68105, USA
| | - Guohua Hua
- Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science & Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Cheng Wang
- Department of Obstetrics and Gynecology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - John S Davis
- Olson Center for Women's Health, Department of Obstetrics and Gynecology, University of Nebraska Medical Center, Omaha, NE 68198, USA.,Veterans Affairs Nebraska Western Iowa Health Care System, Omaha, NE 68105, USA
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8
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Ha LX, Li WX, Du YD, Yuan YY, Qu XX. Tumor Necrosis Factor Alpha Level in the Uterine Fluid of Patients with Polycystic Ovary Syndrome and Its Correlation with Clinical Parameters. J Inflamm Res 2022; 15:6015-6020. [PMID: 36339827 PMCID: PMC9628701 DOI: 10.2147/jir.s382808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 09/16/2022] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE This study aimed to analyze tumor necrosis factor alpha (TNF-α) level in the uterine fluid of patients with polycystic ovary syndrome (PCOS) and its correlation with the clinical parameters of PCOS. METHODS A total of 162 patients treated in the Reproductive Medicine Center of the General Hospital of Ningxia Medical University between December 2019 and November 2021 were enrolled as research subjects, including 80 patients with PCOS and 82 patients with other gynecological disease, who were used as the controls. The patients' general data, along with blood glucose, blood lipid, insulin, and sex hormone levels and other data, were collected. The TNF-α levels in the patients' serum and uterine fluid were detected using enzyme-linked immunosorbent assay. RESULTS Compared with the patients in the control group, the body mass index (BMI), anti-Müllerian hormone, luteinizing hormone, testosterone (T), fasting insulin (FINS), homeostasis model assessment insulin resistance (HOMA-IR), triglyceride (TG), and low-density lipoprotein (LDL) of patients with PCOS were higher, and high-density lipoprotein was lower (P < 0.05). The TNF-α levels in the serum and uterine fluid of patients with PCOS were higher than those in the control group (P < 0.01), and the TNF-α levels in the uterine fluid of these patients was significantly correlated with BMI, T, FINS, HOMA-IR, serum TNF-α, TG, and LDL (P < 0.05). CONCLUSION There is local inflammation in the uterine cavity of patients with PCOS, and the detection of cytokines in uterine secretions may be a simple and feasible method of understanding the uterine microenvironment of patients with PCOS.
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Affiliation(s)
- Ling-Xia Ha
- Reproductive Medicine Center, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia, People’s Republic of China,Correspondence: Ling-Xia Ha, Reproductive Medicine Center, General Hospital of Ningxia Medical University, No. 804 of Shengli Road, Xingqing District, Yinchuan, Ningxia, 750004, People’s Republic of China, Tel +86 951 6744033; +86 13629500990, Fax +86 951 6743891, Email
| | - Wei-Xia Li
- Reproductive Center, Maternal and Child Health Care Hospital of Yinchuan City, Yinchuan, Ningxia, 750000, People’s Republic of China
| | - Yu-Dong Du
- Ningxia Medical University, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, 750004, People’s Republic of China
| | - Ying-Ying Yuan
- Reproductive Medicine Center, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia, People’s Republic of China
| | - Xiao-Xiao Qu
- Ningxia Medical University, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, 750004, People’s Republic of China
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Lidaka L, Bekere L, Lazdane G, Lazovska M, Dzivite-Krisane I, Gailite L. Role of Single Nucleotide Variants in the YAP1 Gene in Adolescents with Polycystic Ovary Syndrome. Biomedicines 2022; 10:biomedicines10071688. [PMID: 35884992 PMCID: PMC9312887 DOI: 10.3390/biomedicines10071688] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/08/2022] [Accepted: 07/11/2022] [Indexed: 11/29/2022] Open
Abstract
Background: Polycystic ovary syndrome (PCOS) is one of the most common endocrinopathies in women. It can manifest in adolescence, affecting up to 8% of adolescents. Long-term health consequences characteristic of PCOS are impaired fertility, increased risk of type 2 diabetes, metabolic disorders and cardiovascular disease. All of these sequelae are exacerbated by increased body weight, a major feature of PCOS. The protein encoded by the YAP1 gene plays a key role in one of the pivotal mechanisms that govern cellular/organismal metabolism and contributes to the pathogenesis of metabolic diseases. Aim: To compare the prevalence of single nucleotide variants (SNVs) in the YAP1 gene among adolescents with PCOS, adolescents at risk of PCOS development and healthy adolescents, and assess their association with the clinical characteristics of PCOS. Results: The frequencies of the five investigated YAP1 gene SNVs (rs11225161, rs11225166, rs3858420, rs11225138 and rs79981660) were not significantly different among adolescents with PCOS, risk group patients and healthy controls. Furthermore, none of the SNVs contributed to the clinical characteristics of adolescents with PCOS and adolescents at risk of PCOS development. Conclusions: No significant associations were found between PCOS in adolescents and the five investigated SNVs in the YAP1 gene.
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Affiliation(s)
- Lasma Lidaka
- Department of Paediatric Gynaecology, Children’s Clinical University Hospital, LV-1004 Riga, Latvia
- Department of Obstetrics and Gynaecology, Riga Stradins University, LV-1007 Riga, Latvia;
- Correspondence:
| | - Laine Bekere
- Faculty of Residency, Riga Stradins University, LV-1007 Riga, Latvia;
| | - Gunta Lazdane
- Department of Obstetrics and Gynaecology, Riga Stradins University, LV-1007 Riga, Latvia;
| | - Marija Lazovska
- Scientific Laboratory of Molecular Genetics, Riga Stradins University, LV-1007 Riga, Latvia; (M.L.); (L.G.)
| | - Iveta Dzivite-Krisane
- Department of Paediatric Endocrinology, Children’s Clinical University Hospital, LV-1004 Riga, Latvia;
| | - Linda Gailite
- Scientific Laboratory of Molecular Genetics, Riga Stradins University, LV-1007 Riga, Latvia; (M.L.); (L.G.)
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Oróstica ML, Astorga I, Plaza-Parrochia F, Poblete C, Carvajal R, García V, Romero C, Vega M. Metformin Treatment Regulates the Expression of Molecules Involved in Adiponectin and Insulin Signaling Pathways in Endometria from Women with Obesity-Associated Insulin Resistance and PCOS. Int J Mol Sci 2022; 23:3922. [PMID: 35409282 PMCID: PMC8999908 DOI: 10.3390/ijms23073922] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 03/21/2022] [Accepted: 03/21/2022] [Indexed: 02/06/2023] Open
Abstract
Polycystic ovary syndrome (PCOS) is an endocrine/metabolic disorder associated with insulin resistance (IR) and obesity. Endometria from women with PCOS present failures in insulin action, glucose uptake and signaling of insulin-sensitizing molecules, such as adiponectin, with consequences for reproduction. Metformin (MTF) treatment improves insulin signaling in endometrial tissues, but its mechanism is not fully understood. This study addresses the MTF effect, as well as adiponectin agonist action, on levels of molecules associated with insulin and adiponectin signaling pathways in endometrial tissue and cells, as assessed by immunohistochemistry and immunocytochemistry, respectively. Endometrial tissues were obtained from women and divided into five groups: Normal Weight (control); Obesity + IR; Obesity + IR + PCOS; Obesity + IR + MTF; Obesity + IR + PCOS + MTF. Endometrial cells stimulated with TNFα (as obesity-marker) were also used to partially emulate an obesity environment. The results showed low levels of insulin/adiponectin signaling in the endometria from women with obesity, IR and PCOS compared with the control group. MTF re-established these levels, independently of PCOS. TNFα-associated molecules were elevated in pathologic endometria, whereas MTF diminished these levels. The low levels of insulin/adiponectin molecules in endometrial cells treated with TNFα were reverted by MTF, similar to what was observed in the case of the adiponectin agonist. Therefore, independently of PCOS, MTF can re-establish levels of molecules involved in insulin/adiponectin signaling in endometrial cells, suggesting an improvement in insulin action and reproductive failures observed in endometria from women with obesity/PCOS.
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Affiliation(s)
- Maria Lorena Oróstica
- Laboratorio de Fisiopatología Celular y Cáncer (FICEC), Centro de Investigación Biomédica (CIB), Facultad de Medicina, Universidad Diego Portales, Santiago 8370007, Chile
- Laboratorio de Comunicaciones Celulares, Programa de Biología Celular y Molecular, Centro de Estudios en Ejercicio, Metabolismo y Cáncer (CEMC), Facultad de Medicina, Universidad de Chile, Santiago 8380453, Chile
| | - Isis Astorga
- Laboratory of Endocrinology and Reproductive Biology, Clinical Hospital, University of Chile, Santos Dumont #999, Santiago 8380456, Chile; (I.A.); (F.P.-P.); (C.P.); (R.C.); (V.G.); (C.R.)
| | - Francisca Plaza-Parrochia
- Laboratory of Endocrinology and Reproductive Biology, Clinical Hospital, University of Chile, Santos Dumont #999, Santiago 8380456, Chile; (I.A.); (F.P.-P.); (C.P.); (R.C.); (V.G.); (C.R.)
| | - Cristian Poblete
- Laboratory of Endocrinology and Reproductive Biology, Clinical Hospital, University of Chile, Santos Dumont #999, Santiago 8380456, Chile; (I.A.); (F.P.-P.); (C.P.); (R.C.); (V.G.); (C.R.)
| | - Rodrigo Carvajal
- Laboratory of Endocrinology and Reproductive Biology, Clinical Hospital, University of Chile, Santos Dumont #999, Santiago 8380456, Chile; (I.A.); (F.P.-P.); (C.P.); (R.C.); (V.G.); (C.R.)
| | - Víctor García
- Laboratory of Endocrinology and Reproductive Biology, Clinical Hospital, University of Chile, Santos Dumont #999, Santiago 8380456, Chile; (I.A.); (F.P.-P.); (C.P.); (R.C.); (V.G.); (C.R.)
| | - Carmen Romero
- Laboratory of Endocrinology and Reproductive Biology, Clinical Hospital, University of Chile, Santos Dumont #999, Santiago 8380456, Chile; (I.A.); (F.P.-P.); (C.P.); (R.C.); (V.G.); (C.R.)
- Department of Obstetrics and Gynecology, School of Medicine, Clinical Hospital, University of Chile, Santiago 8380456, Chile
| | - Margarita Vega
- Laboratory of Endocrinology and Reproductive Biology, Clinical Hospital, University of Chile, Santos Dumont #999, Santiago 8380456, Chile; (I.A.); (F.P.-P.); (C.P.); (R.C.); (V.G.); (C.R.)
- Department of Obstetrics and Gynecology, School of Medicine, Clinical Hospital, University of Chile, Santiago 8380456, Chile
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Pathare ADS, Hinduja I, Mahadik RC. Basic aspects of endometrial receptivity in PCOS patients. Mol Biol Rep 2022; 49:1519-1528. [PMID: 34988892 DOI: 10.1007/s11033-021-06976-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Accepted: 11/17/2021] [Indexed: 12/12/2022]
Abstract
Polycystic Ovarian Syndrome (PCOS) is an endocrine disorder commonly affecting the reproductive capacity of women leading to infertility. PCOS-related infertility is majorly due to anovulation; however, it is not the only cause. The defective endometrium causing recurrent miscarriage and implantation failure can also be accountable for infertility in PCOS women. The unusual levels of hormones and their receptors in the PCOS endometrium have a hostile effect during WOI, making the microenvironment unfavorable for embryo implantation. To date, many studies have been performed to determine the role of candidate genes in endometrial receptivity but very limited data is available using whole genome approach. This review aims at summarizing the existing studies on the basic aspects of endometrial receptivity in PCOS. The review focuses on aberrant levels of hormones and their receptors in the endometrium, affecting the receptivity. Additionally, it explores the novel approach reviewing the effect on treatment options administered for ovulation induction in PCOS on their endometrial receptivity. Overall, this review will help us to understand the molecular milieu in PCOS endometrium and its effect on the receptivity potential. However, to have a thorough understanding of the mechanistic approach of hormonal imbalance in PCOS on endometrial receptivity, there is a need to give more weightage to genome-wide studies in the future. The current review will further guide us to formulate future studies using whole genome technologies for the assessment of endometrial receptivity in different cohorts of PCOS women, which may have future diagnostic implementations.
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Affiliation(s)
- Amruta D S Pathare
- Department of IVF and Research, P. D. Hinduja Hospital and Medical Research Centre, Mumbai, 400016, India
| | - Indira Hinduja
- Department of IVF and Research, P. D. Hinduja Hospital and Medical Research Centre, Mumbai, 400016, India.
| | - Roshani C Mahadik
- Department of IVF and Research, P. D. Hinduja Hospital and Medical Research Centre, Mumbai, 400016, India
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Junaid R, Wahid M, Waseem FS, Habib R, Hasan A. Effect of glucose mediated oxidative stress on apoptotic gene expression in gingival mesenchymal stem cells. BMC Oral Health 2021; 21:653. [PMID: 34922513 PMCID: PMC8684132 DOI: 10.1186/s12903-021-02007-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 12/01/2021] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Diabetes is a common disease that causes gingival and periodontal problems. Stem cells isolated from dental sources are an emerging area of research with a potential to facilitate regenerative medicine. The stem cells retain the property of self-renewal and the ones isolated from dental sources are mainly multipotent mesenchymal stem cells that have the ability to self-renew as well as differentiation towards multiple lineages.
Objectives
We aimed to isolate and characterize gingival mesenchymal stem cells by pluripotency markers and investigated the effect of oxidative stress on growth kinetics and apoptotic gene expression of gingival cells exposed to glucose mediated oxidative stress.
Methods
In this study, we isolated gingival mesenchymal stem cells from gingiva. This was followed by morphologic analysis using inverted phase contrast microscopy and molecular profiling of these cells for the mRNA expression of specific genes. The isolated cells were cultured till passage 3 and then exposed to oxidative stress (high glucose concentration). We measured the apoptotic gene expression and compared their growth kinetics.
Results
The results showed that oxidative stress produced by glucose reduced growth kinetics and increased apoptotic gene expression in gingival mesenchymal stem cells. According to the genetic results, glucose activated TNF family to initiate apoptosis.
Conclusion
In conclusion, the present study demonstrated that high glucose obliterated cellular proliferation testified by evaluating growth kinetics and induced apoptotic gene expression in gingival mesenchymal stem cells. This initiated extrinsic apoptotic pathway mediated by TNF family. Therefore, in diabetes oral health condition is compromised and periodontal disease is common.
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Jiang NX, Li XL. The Disorders of Endometrial Receptivity in PCOS and Its Mechanisms. Reprod Sci 2021; 29:2465-2476. [PMID: 34046867 DOI: 10.1007/s43032-021-00629-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 05/19/2021] [Indexed: 12/14/2022]
Abstract
Polycystic ovary syndrome (PCOS) is a mysterious and complicated endocrine disease with the combination of metabolic, reproductive, psychological dysfunctions. Impaired endometrial receptivity and ovulation disorders/anovulation are both important causes of PCOS-related infertility. However, change in endometrium has never received the same attention as ovulatory dysfunction. Besides, putting emphasis on endometrial function may be more realistic for PCOS-related infertility, given the wide use of assisted reproductive technology. The present review focuses on the disorders of endometrial receptivity of patients with PCOS, summarizes the changes of the indicators of endometrial receptivity including leukemia inhibitory factor, homeobox genes A, pinopodes, αvβ3-integrin, and intercellular junctions and also analyzes the possible mechanisms of decreased endometrial receptivity and its relationship with the main endocrine and metabolic disorders of PCOS such as hyperandrogenism, inflammation, insulin resistance, and obesity. Despite several biomarkers have been found to be associated with decreased endometrial receptivity in PCOS, the clinical relevance of these findings still awaits future clarification.
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Affiliation(s)
- Nan-Xing Jiang
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, People's Republic of China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, People's Republic of China
| | - Xue-Lian Li
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, People's Republic of China. .,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, People's Republic of China.
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14
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Nanocurcumin alleviates insulin resistance and pancreatic deficits in polycystic ovary syndrome rats: Insights on PI3K/AkT/mTOR and TNF-α modulations. Life Sci 2020; 256:118003. [PMID: 32589998 DOI: 10.1016/j.lfs.2020.118003] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 06/13/2020] [Accepted: 06/21/2020] [Indexed: 12/17/2022]
Abstract
INTRODUCTION AND AIMS Polycystic ovary syndrome (PCOS) is a widespread endocrine disorder affecting females. Mechanisms underlying PCOS complicated pathology remain largely unknown, making current treatment only symptomatic. Increasing reports suggest impaired PI3K/AKT/mTOR pathway and tumor necrosis factor-α (TNF-α) levels are involved in cellular proliferation and metabolism-related disorders. However, rare data explored their role in PCOS. Hence, this study investigated TNF-α and pancreatic PI3K/AKT/mTOR levels in PCOS animal model and evaluated their effects on developed pancreatic deficits. Secondly; we explored the impact of nanocurcumin as powerful anti-inflammatory supplement against these developed pancreatic pathologies. METHODS PCOS was induced in rats using letrozole. Nanocurcumin was formulated to increase solubility and bioavailability of curcumin. Transmission electron microscopy (TEM), zeta potential and Infra-red spectroscopy (FT-IR) were used for characterization. Nanocurcumin was orally ingested for 15 days. FINDINGS PCOS group exhibited significant disturbance in sex hormones, oxidative stress markers, and TNF-α levels as determined by immunoassay. Western blotting revealed significant reduction of PI3K/AKT/mTOR levels leading to impaired insulin sensitivity, decreased β cells function and mass as confirmed by HOMA assessments and immunohistochemistry. Nanocurcumin significantly improved oxidative markers, glucose indices and TNF-α levels. It reinstated PI3K/AKT/mTOR levels, alleviated insulin resistance, and retained islets integrity consequently restoring normal sex hormonal levels. SIGNIFICANCE To the best of our knowledge, the study is the first to report pancreatic role of PI3K/AKT/mTOR and TNF-α in PCOS and the first to demonstrate nanocurcumin promising potential against PCOS-related pancreatic molecular and histological pathologies that can indeed offer better control of the disease.
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Artimani T, Najafi R. APPL1 as an important regulator of insulin and adiponectin‐signaling pathways in the PCOS: A narrative review. Cell Biol Int 2020; 44:1577-1587. [DOI: 10.1002/cbin.11367] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 04/09/2020] [Accepted: 04/25/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Tayebe Artimani
- Endometrium and Endometriosis Research CenterHamadan University of Medical Sciences Hamadan Iran
| | - Rezvan Najafi
- Research Center for Molecular MedicineHamadan University of Medical Sciences Hamadan Iran
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16
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Cardoso NS, Ribeiro VB, Dutra SGV, Ferriani RA, Gastaldi AC, de Araújo JE, de Souza HCD. Polycystic ovary syndrome associated with increased adiposity interferes with serum levels of TNF-alpha and IL-6 differently from leptin and adiponectin. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2020; 64:4-10. [PMID: 32187268 PMCID: PMC10522288 DOI: 10.20945/2359-3997000000197] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 08/28/2019] [Indexed: 11/23/2022]
Abstract
Objective The aim of this study was to investigate polycystic ovary syndrome (PCOS) and to explore the relationship between body fat percentage and metabolic markers. Subjects and methods Sedentary women were assigned to PCOS (N = 60) and CONTROL (N = 60) groups. Each group was subdivided into three subgroups according to body fat percentage (22-27%, 27-32% and 32-37%). The protocol consisted of assessments of glucose, insulin, androgens, follicle stimulating hormone (FSH), luteinizing hormone (LH), 17-hydroxyprogesterone (17-OHP), leptin, adiponectin, tumor necrosis factor (TNF-α) and interleukin-6 (IL-6). Results The PCOS subgroups showed higher concentrations of androgens, LH and 17-OHP. Leptin showed direct relationship with increased body fat percentage, whereas adiponectin showed the inverse effect. However, both were unaffected by PCOS. TNF-α and IL-6 were higher in PCOS women and showed a direct relationship with increased body fat percentage. Glucose showed direct relationship with body fat percentage, whereas insulin presented higher values in PCOS women and direct relationship with increased body fat percentage. Conclusions Our findings indicate that PCOS and body fat percentage directly influence concentrations of insulin, TNF-α and IL-6, whereas leptin and adiponectin are influenced only by the increase in body fat percentage in these women. Arch Endocrinol Metab. 2020;64(1):4-10.
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Affiliation(s)
- Nathália Sigilló Cardoso
- Departamento de Biomecânica, Medicina e Reabilitação do Aparelho LocomotorFaculdade de Medicina de Ribeirão PretoUniversidade de São PauloRibeirão PretoSPBrasilDepartamento de Biomecânica, Medicina e Reabilitação do Aparelho Locomotor, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (FMRP-USP), Ribeirão Preto, SP, Brasil
| | - Victor Barbosa Ribeiro
- Departamento de Ginecologia e ObstetríciaFaculdade de Medicina de Ribeirão PretoUniversidade de São PauloRibeirão PretoSPBrasilDepartamento de Ginecologia e Obstetrícia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (FMRP-USP), Ribeirão Preto, SP, Brasil
- Instituto Federal de São PauloJacareíSPBrasilInstituto Federal de São Paulo, Jacareí, SP, Brasil
| | - Sabrina Graziani Veloso Dutra
- Departamento de Biomecânica, Medicina e Reabilitação do Aparelho LocomotorFaculdade de Medicina de Ribeirão PretoUniversidade de São PauloRibeirão PretoSPBrasilDepartamento de Biomecânica, Medicina e Reabilitação do Aparelho Locomotor, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (FMRP-USP), Ribeirão Preto, SP, Brasil
| | - Rui Alberto Ferriani
- Departamento de Ginecologia e ObstetríciaFaculdade de Medicina de Ribeirão PretoUniversidade de São PauloRibeirão PretoSPBrasilDepartamento de Ginecologia e Obstetrícia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (FMRP-USP), Ribeirão Preto, SP, Brasil
| | - Ada Clarice Gastaldi
- Departamento de Biomecânica, Medicina e Reabilitação do Aparelho LocomotorFaculdade de Medicina de Ribeirão PretoUniversidade de São PauloRibeirão PretoSPBrasilDepartamento de Biomecânica, Medicina e Reabilitação do Aparelho Locomotor, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (FMRP-USP), Ribeirão Preto, SP, Brasil
| | - João Eduardo de Araújo
- Departamento de Biomecânica, Medicina e Reabilitação do Aparelho LocomotorFaculdade de Medicina de Ribeirão PretoUniversidade de São PauloRibeirão PretoSPBrasilDepartamento de Biomecânica, Medicina e Reabilitação do Aparelho Locomotor, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (FMRP-USP), Ribeirão Preto, SP, Brasil
| | - Hugo Celso Dutra de Souza
- Departamento de Biomecânica, Medicina e Reabilitação do Aparelho LocomotorFaculdade de Medicina de Ribeirão PretoUniversidade de São PauloRibeirão PretoSPBrasilDepartamento de Biomecânica, Medicina e Reabilitação do Aparelho Locomotor, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (FMRP-USP), Ribeirão Preto, SP, Brasil
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Cabrera-Cruz H, Oróstica L, Plaza-Parrochia F, Torres-Pinto I, Romero C, Vega M. The insulin-sensitizing mechanism of myo-inositol is associated with AMPK activation and GLUT-4 expression in human endometrial cells exposed to a PCOS environment. Am J Physiol Endocrinol Metab 2020; 318:E237-E248. [PMID: 31874063 DOI: 10.1152/ajpendo.00162.2019] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Polycystic ovary syndrome (PCOS) is an endocrine-metabolic disorder characterized by hyperandrogenism and ovulatory dysfunction but also obesity and hyperinsulinemia. These characteristics induce an insulin-resistant state in tissues such as the endometrium, affecting its reproductive functions. Myo-inositol (MYO) is an insulin-sensitizing compound used in PCOS patients; however, its insulin-sensitizing mechanism is unclear. To understand the relationship of MYO with insulin action in endometrial cells, sodium/myo-inositol transporter 1 (SMIT-1) (MYO-transporter), and MYO effects on protein levels related to the insulin pathway were evaluated. SMIT-1 was assessed in endometrial tissue from women with normal weight, obesity, insulin resistance, and PCOS; additionally, using an in vitro model of human endometrial cells exposed to an environment resembling hyperinsulinemic-obese-PCOS, MYO effect was evaluated on p-AMPK and GLUT-4 levels and glucose uptake by Western blot, immunocytochemistry, and confocal microscopy, respectively. SMIT-1 was detected in endometrial tissue from all groups and decreased in PCOS and obesity (P < 0.05 vs. normal weight). In the in vitro model, PCOS conditions decreased p-AMPK levels, while they were restored with MYO (P < 0.05). The diminished GLUT-4 protein levels promoted by PCOS environment were restored by MYO through SMIT-1 and p-AMPK-dependent mechanism (P < 0.05). Also, MYO restored glucose uptake in cells under PCOS condition through a p-AMPK-dependent mechanism. Finally, these results were similar to those obtained with metformin treatment in the same in vitro conditions. Consequently, MYO could be a potential insulin sensitizer through its positive effects on insulin-resistant tissues as PCOS-endometrium, acting through SMIT-1, provoking AMPK activation and elevated GLUT-4 levels and, consequently, increase glucose uptake by human endometrial cells. Therefore, MYO may be used as an effective treatment option in insulin-resistant PCOS women.
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Affiliation(s)
- Heidy Cabrera-Cruz
- Laboratory of Endocrinology and Reproductive Biology, Clinical Hospital, University of Chile, Santiago, Chile
- Department of Bioanalysis and Immunology, Faculty of Sciences, National Autonomous University of Honduras, Tegucigalpa, Honduras
| | - Lorena Oróstica
- Laboratory of Endocrinology and Reproductive Biology, Clinical Hospital, University of Chile, Santiago, Chile
- Centro de Investigación Biomédica, Facultad de Medicina, Universidad Diego Portales, Santiago, Chile
| | - Francisca Plaza-Parrochia
- Laboratory of Endocrinology and Reproductive Biology, Clinical Hospital, University of Chile, Santiago, Chile
| | - Ignacio Torres-Pinto
- Laboratory of Endocrinology and Reproductive Biology, Clinical Hospital, University of Chile, Santiago, Chile
| | - Carmen Romero
- Laboratory of Endocrinology and Reproductive Biology, Clinical Hospital, University of Chile, Santiago, Chile
- Department of Obstetrics and Gynecology, Clinical Hospital, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Margarita Vega
- Laboratory of Endocrinology and Reproductive Biology, Clinical Hospital, University of Chile, Santiago, Chile
- Department of Obstetrics and Gynecology, Clinical Hospital, Faculty of Medicine, University of Chile, Santiago, Chile
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Oróstica L, Poblete C, Romero C, Vega M. Pro-Inflammatory Markers Negatively Regulate IRS1 in Endometrial Cells and Endometrium from Women with Obesity and PCOS. Reprod Sci 2020; 27:290-300. [PMID: 32046436 DOI: 10.1007/s43032-019-00026-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 03/31/2019] [Indexed: 02/03/2023]
Abstract
A pro-inflammatory environment is characteristic of obesity and polycystic ovary syndrome (PCOS). This environment through cytokines secretion negatively affects insulin action. Endometria from women with both conditions (obesity and PCOS) present high TNF-α level and altered insulin signaling. In addition, these patients present reproductive failures that could be associated to an abnormal endometrial function. Here, TNF-α and IL-6 effects on insulin signaling pathway were evaluated. Serum and endometrial IL-6, phospho-IRS1-S270 (inactive form) and phospho-IRS1-Y612 (active form) levels were evaluated in women with: Normal-Weight, Obesity and Obesity-PCOS. In endometrial cells under hyperandrogenic/hyperinsulinic conditions resembling PCOS, it was evaluated IL-6/TNF-α effects on phospho-IRS1-S270, phospho-IRS1-Y612, phospho-AKT-S473 levels, and S6K and JNK activation (IRS1-inactivating molecules). In obesity groups, diminution of IRS1-active form was observed, being more significantly in Obesity-PCOS; whereas, IRS1-inactive form increased in Obesity-PCOS. Serum and endometrial IL-6 were higher in Obesity-groups compared to Normal-Weight. In endometrial cells, TNF-α increases phospho-IRS1-S270, while IL-6 decreases phospho-IRS1-Y612. Importantly, TNF-α and IL-6 promote S6K and JNK activation; TNF-α increases and IL-6 decreases phospho-AKT-S473 levels. Thus, pro-inflammatory cytokines in endometrium could negatively influence insulin signaling by different mechanisms: TNF-α promotes activation of IRS1-inactivating kinases, whereas, IL-6 decreases IRS1 and AKT activation. Moreover, when obesity and PCOS are present the disruption of insulin signaling is aggravated. These effects could explain endometrial abnormal function and reproductive failures observed in women with obesity and PCOS.
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Affiliation(s)
- Lorena Oróstica
- Laboratory of Endocrinology and Reproductive Biology, Clinical Hospital, University of Chile, Av. Santos Dumont #999, Independencia, 8380456, Santiago, Chile. .,Centro de Investigación Biomédica, Facultad de Medicina, Universidad Diego Portales, Av. Ejercito Libertador # 141, 8370007, Santiago, Chile.
| | - Cristian Poblete
- Laboratory of Endocrinology and Reproductive Biology, Clinical Hospital, University of Chile, Av. Santos Dumont #999, Independencia, 8380456, Santiago, Chile
| | - Carmen Romero
- Laboratory of Endocrinology and Reproductive Biology, Clinical Hospital, University of Chile, Av. Santos Dumont #999, Independencia, 8380456, Santiago, Chile.,Department of Obstetrics and Gynecology, Clinical Hospital, Faculty of Medicine, University of Chile, Av. Santos Dumont #999, Independencia, 8380456, Santiago, Chile
| | - Margarita Vega
- Laboratory of Endocrinology and Reproductive Biology, Clinical Hospital, University of Chile, Av. Santos Dumont #999, Independencia, 8380456, Santiago, Chile. .,Department of Obstetrics and Gynecology, Clinical Hospital, Faculty of Medicine, University of Chile, Av. Santos Dumont #999, Independencia, 8380456, Santiago, Chile.
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