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Veiga ECDA, Samama M, Ikeda F, Cavalcanti GS, Sartor A, Parames SF, Baracat EC, Ueno J, Junior JMS. Melatonin improves fertilization rate in assisted reproduction: Systematic review and meta-analysis. Clinics (Sao Paulo) 2024; 79:100397. [PMID: 38971124 PMCID: PMC11265587 DOI: 10.1016/j.clinsp.2024.100397] [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: 01/23/2024] [Revised: 04/01/2024] [Accepted: 05/13/2024] [Indexed: 07/08/2024] Open
Abstract
BACKGROUND Melatonin is a hormone produced by the pineal gland and it has antioxidant properties. AIM This study aimed to evaluate the effects of melatonin on assisted reproductive technologies through a systematic review and a meta-analysis. MATERIALS AND METHODS Search strategies were used in PubMed and in other databases covering the last 15 years. After screening for eligibility, 17 articles were selected for the systematic review. For the meta-analysis statistics, two groups were formed, the treatment group (with melatonin) and the control group (without melatonin) for various assisted reproduction outcomes. RESULTS The main results were that no statistical differences were found concerning the clinical pregnancy outcome (p = 0.64), but there was a statistical difference with respect to Mature Oocytes (MII) (p = 0.001), antral follicle count (p = 0.0002), and the fertilization rate (p ≤ 0.0001). CONCLUSIONS Melatonin had beneficial effects such as the improvement in the fertilization rate, although the authors did not obtain significance in the clinical pregnancy rate.
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Affiliation(s)
- Eduardo Carvalho de Arruda Veiga
- GERA Instituto de Ensino e Pesquisa em Medicina Reprodutiva de, São Paulo, SP, Brazil; Department of Obstetrics and Gynecology, Hospital das Clínicas, Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo (FMRP-USP), São Paulo, SP, Brazil.
| | - Marise Samama
- GERA Instituto de Ensino e Pesquisa em Medicina Reprodutiva de, São Paulo, SP, Brazil; Department of Gynecology, Escola Paulista de Medicina, Universidade Federal de São Paulo (EPM/UNIFESP), São Paulo, SP, Brazil
| | - Fabio Ikeda
- GERA Instituto de Ensino e Pesquisa em Medicina Reprodutiva de, São Paulo, SP, Brazil
| | - Giovanna Santos Cavalcanti
- Lim-58 - Laboratório de Ginecologia Estrutural e Molecular da Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil
| | - Amanda Sartor
- GERA Instituto de Ensino e Pesquisa em Medicina Reprodutiva de, São Paulo, SP, Brazil; Department of Gynecology, Escola Paulista de Medicina, Universidade Federal de São Paulo (EPM/UNIFESP), São Paulo, SP, Brazil
| | | | - Edmund C Baracat
- Lim-58 - Laboratório de Ginecologia Estrutural e Molecular da Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil
| | - Joji Ueno
- GERA Instituto de Ensino e Pesquisa em Medicina Reprodutiva de, São Paulo, SP, Brazil
| | - Jose Maria Soares Junior
- Lim-58 - Laboratório de Ginecologia Estrutural e Molecular da Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil
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Zhang J, Jiang B. Influence of Melatonin Treatment on Emotion, Sleep, and Life Quality in Perimenopausal Women: A Clinical Study. JOURNAL OF HEALTHCARE ENGINEERING 2023; 2023:2198804. [PMID: 37854169 PMCID: PMC10581846 DOI: 10.1155/2023/2198804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 04/12/2022] [Accepted: 04/15/2022] [Indexed: 10/20/2023]
Abstract
Method 100 healthy perimenopausal women were recruited and randomly assigned to two groups, with 50 subjects in each group. In the control group, placebo was administrated daily for 3 cycles (4 weeks of treatment for 1 cycle and drug withdrawals for 1 week). The study group received 3 mg oral melatonin treatment daily in the same period of time. All subjects completed the study. We compared the uterine volume, endometrial thickness, LH (luteinizing hormone), FSH (follicle generating hormone), E2 (estradiol), and melatonin levels during daytime between the two groups before and after the study. Moreover, perimenopause syndrome, sleep, mood, and QoL were analyzed at the baseline and 3 cycles by the questionnaires of the Kupperman index, the Pittsburgh sleep quality index (PSQI), the Hamilton anxiety scale (HAMA), and the Hamilton depression scale (HAMD), as well as menopausal QoL (MENQOL), respectively. Any adverse reactions experienced by the subjects were also compared in the study. Finally, 91 participants (92%) completed the whole study, 47 and 44 in the study and control groups, respectively, and their data were considered in subsequent analyses. Results After therapy, the two groups were similar in the uterine volume and endometrial thickness. In contrast to the control group, the study group showed notably decreased LH and FSH levels. No notable difference was discovered in E2 and melatonin levels between the two groups in the study. Moreover, the study group exhibited a significantly lower score in the Kupperman index, PSQI, HAMA, HAMD, and MENQOL scale than the control group. Moreover, the two groups had no notable difference in adverse reactions. Conclusion Melatonin was a useful treatment to relieve climacteric symptoms and improve sleep, mood, and life quality in perimenopausal women without obvious adverse reactions.
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Affiliation(s)
- Jianfu Zhang
- Department of Pharmacy, Ningbo Women and Children's Hospital, Ningbo 315012, China
| | - Bengui Jiang
- Department of Gynecology, Ningbo Women and Children's Hospital, Ningbo 315012, China
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Ma J, Wang J, Hu S, Li Y, Zhang Y, Yang Y, Yang C, Huo S, Yang Y, Zhaxi Y, Luo W. Effects of melatonin on development and hormone secretion of sheep theca cells in vitro. Theriogenology 2023; 198:172-182. [PMID: 36592515 DOI: 10.1016/j.theriogenology.2022.12.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/23/2022] [Accepted: 12/26/2022] [Indexed: 12/28/2022]
Abstract
Theca cells (TCs) play a unique role in the structure and function of the ovary. They are not only the structural basis of the follicle but also the androgen-secreting cells in female mammals, which can affect the normal development and atresia of the follicle. The results showed that melatonin receptor (MTR) MT1 and MT2 were expressed on sheep TCs. In the present study, the effects of different concentrations of MT at 0, 10-10, 10-8, 10-6 and 10-4 M/L on sheep TCs with regards to the antioxidant levels, proliferation, apoptosis and steroid hormone secretion were investigated. The results showed that in sheep TCs, all concentrations of MT significantly decreased reactive oxygen species (ROS) concentration and BAX expression; increased Cat, Sod1, and BCL-2 expression. The proliferation viability of TCs was significantly inhibited in all groups except for 10-10 M/L MT, and the expression of cyclin D1 and CDK4 was significantly reduced. MT significantly increased StAR expression and progesterone secretion in TCs, but there was no significant effect on androgen secretion and CYP11A1, CYP17A1 and 3β-HSD expression in all groups. MT-induced progesterone secretion was completely inhibited by Luzindole (a nonspecific MT1 and MT2 inhibitor) and partially inhibited by 4p-PDOT (specific MT2 inhibitor). MT-induced progesterone secretion can be inhibited by LY294002 (PI3K/AKT pathway inhibitor). This study indicated that MT inhibits apoptosis and proliferation of in vitro cultured sheep TCs, which has implications for slowing ovarian atresia and aging. MT activates the PI3K/Akt pathway to mediate the synthesis and secretion of progesterone by TCs. This study provides a basis for further exploration of the role of TCs on follicle development and ovarian steroid hormone secretion.
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Affiliation(s)
- Junyuan Ma
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, Gansu, 730030, China
| | - Jine Wang
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, Gansu, 730030, China
| | - Songming Hu
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, Gansu, 730030, China
| | - Yang Li
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, Gansu, 730030, China
| | - Yaxin Zhang
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, Gansu, 730030, China
| | - Yahua Yang
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, Gansu, 730030, China
| | - Chongfa Yang
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, Gansu, 730030, China
| | - Shengdong Huo
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, Gansu, 730030, China.
| | - Yanmei Yang
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, Gansu, 730030, China
| | - Yingpai Zhaxi
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, Gansu, 730030, China
| | - Wenxue Luo
- Tianzhu County Animal Husbandry Technology Extension Station, Wuwei, Gansu, 733200, China
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Kasap EY, Parfenova ОK, Kurkin RV, Grishin DV. Bioinformatic analysis of the coding region of the melatonin receptor 1b gene as a reliable DNA marker to resolve interspecific mammal phylogenetic relationships. MATHEMATICAL BIOSCIENCES AND ENGINEERING : MBE 2023; 20:5430-5447. [PMID: 36896552 DOI: 10.3934/mbe.2023251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
This research looks into the main DNA markers and the limits of their application in molecular phylogenetic analysis. Melatonin 1B (MTNR1B) receptor genes were analyzed from various biological sources. Based on the coding sequences of this gene, using the class Mammalia as example, phylogenetic reconstructions were made to study the potential of mtnr1b as a DNA marker for phylogenetic relationships investigating. The phylogenetic trees were constructed using NJ, ME and ML methods that establish the evolutionary relationships between different groups of mammals. The resulting topologies were generally in good agreement with topologies established on the basis of morphological and archaeological data as well as with other molecular markers. The present divergences provided a unique opportunity for evolutionary analysis. These results suggest that the coding sequence of the MTNR1B gene can be used as a marker to study the relationships of lower evolutionary levels (order, species) as well as to resolve deeper branches of the phylogenetic tree at the infraclass level.
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Affiliation(s)
- Ekaterina Y Kasap
- Institute of Biomedical Chemistry (IBMC), 10 Pogodinskaya St, Moscow, 119121, Russia
| | - Оlga K Parfenova
- Institute of Biomedical Chemistry (IBMC), 10 Pogodinskaya St, Moscow, 119121, Russia
| | - Roman V Kurkin
- Institute of Biomedical Chemistry (IBMC), 10 Pogodinskaya St, Moscow, 119121, Russia
| | - Dmitry V Grishin
- Institute of Biomedical Chemistry (IBMC), 10 Pogodinskaya St, Moscow, 119121, Russia
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Cipolla-Neto J, Amaral FG, Soares JM, Gallo CC, Furtado A, Cavaco JE, Gonçalves I, Santos CRA, Quintela T. The Crosstalk between Melatonin and Sex Steroid Hormones. Neuroendocrinology 2022; 112:115-129. [PMID: 33774638 DOI: 10.1159/000516148] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 03/24/2021] [Indexed: 11/19/2022]
Abstract
Melatonin, an indolamine mainly released from the pineal gland, is associated with many biological functions, namely, the modulation of circadian and seasonal rhythms, sleep inducer, regulator of energy metabolism, antioxidant, and anticarcinogenic. Although several pieces of evidence also recognize the influence of melatonin in the reproductive physiology, the crosstalk between melatonin and sex hormones is not clear. Here, we review the effects of sex differences in the circulating levels of melatonin and update the current knowledge on the link between sex hormones and melatonin. Furthermore, we explore the effects of melatonin on gonadal steroidogenesis and hormonal control in females. The literature review shows that despite the strong evidence that sex differences impact on the circadian profiles of melatonin, reports are still considerably ambiguous, and these differences may arise from several factors, like the use of contraceptive pills, hormonal status, and sleep deprivation. Furthermore, there has been an inconclusive debate about the characteristics of the reciprocal relationship between melatonin and reproductive hormones. In this regard, there is evidence for the role of melatonin in gonadal steroidogenesis brought about by research that shows that melatonin affects multiple transduction pathways that modulate Sertoli cell physiology and consequently spermatogenesis, and also estrogen and progesterone production. From the outcome of our research, it is possible to conclude that understanding the correlation between melatonin and reproductive hormones is crucial for the correction of several complications occurring during pregnancy, like preeclampsia, and for the control of climacteric symptoms.
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Affiliation(s)
- José Cipolla-Neto
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | | | - José Maria Soares
- Laboratório de Ginecologia Estrutural e Molecular (LIM 58), Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, HCFMUSP, São Paulo, Brazil
| | | | - André Furtado
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - José Eduardo Cavaco
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Isabel Gonçalves
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | | | - Telma Quintela
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
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Duan H, Hu J, Xiao L, Lv J, Zhang Y, Zhao X. β-Estradiol inhibits melatonin synthesis and melatonin receptor expression in sheep granulosa cells. Gene 2021; 814:146128. [PMID: 34971752 DOI: 10.1016/j.gene.2021.146128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/23/2021] [Accepted: 12/14/2021] [Indexed: 11/04/2022]
Abstract
Melatonin, an important regulator of mammalian reproduction, is mainly produced in the pineal gland, and granulosa cells (GCs), the main mammalian ovarian secretory cells, synthesize melatonin and express melatonin receptors (MRs) MT1 and MT2. However, studies on melatonin regulation in GCs are lacking in sheep. In this study, we explored the effects of β-estradiol (E2) on melatonin production and MR expression in GCs. We cultured sheep GCs to analyze the expression of the melatonin rate-limiting enzymes AANAT and HIOMT and the effects of E2 on AANAT, HIOMT, and MR expression and melatonin synthesis. To determine whether estrogen receptors (ERs) mediated E2 action on melatonin secretion and MR expression, we assessed ERA and ERB expression in GCs and observed whether ER antagonists counterbalanced the effects of E2. GCs expressed AANAT and HIOMT mRNA, indicating that they transformed exogenous serotonin into melatonin. E2 inhibited melatonin production by downregulating AANAT, HIOMT, and MRs. GCs expressed ERA and ERB; ERA/ERB inhibitors abolished E2-mediated inhibition of melatonin secretion and MR expression. PHTPP upregulated melatonin secretion and MT1 expression in E2-treated GCs, but did not significantly affect AANAT and MT2 expression. In conclusion, melatonin secretion in GCs was inhibited by E2 through an ERA- and ERB-mediated process.
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Affiliation(s)
- Hongwei Duan
- Faculty of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou 730070, China
| | - Junjie Hu
- Faculty of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou 730070, China.
| | - Longfei Xiao
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China
| | - Jianshu Lv
- Faculty of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou 730070, China
| | - Yong Zhang
- Faculty of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou 730070, China
| | - Xingxu Zhao
- Faculty of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou 730070, China.
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Challenges in Establishing a Relevant Model of Polycystic Ovary Syndrome in Rats – A Mini Review. SERBIAN JOURNAL OF EXPERIMENTAL AND CLINICAL RESEARCH 2021. [DOI: 10.2478/sjecr-2021-0034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Polycystic ovary syndrome (PCOS) is one of the most com-mon female endocrinopathy and one of the leading causes of in-fertility. However, the exact etiopathogenetic mechanisms are not discovered yet, while therapeutic strategies in PCOS commonly rely on symptomatic rather than curative. Regarding reasonable ethical limitations in human population, animal experimental studies can provide better insights into mechanisms underlying etiopathogenesis of PCOS, as well as investigations of different therapeutic strategies. Rodent models for PCOS are very useful for experimental studies due to their great genetic similarities with human genome, short reproductive and life span, feasible gener-ating of genetically adapted animals, and convenient and acces-sible use. To our knowledge, androgens (dehydroepiandroste-rone, testosterone propionate, 5a-dihydrotestosterone), as well as estradiol valerate, represent the most frequently used hormones for PCOS modeling. Furthermore, the administration of antipro-gesterone or letrozole has been reported as effective for PCOS induction. In our review, the presented PCOS models were ac-complished by the administration of different hormones or drugs and alterations of environment. The main focus of this review was to summarize the alterations in ovarian morphology, hypotha-lamic-pituitary-ovarian axis, and hormone levels across above-mentioned protocols for postnatal PCOS modeling in rats.
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Kadir ER, Imam A, Olajide OJ, Ajao MS. Alterations of Kiss 1 receptor, GnRH receptor and nuclear receptors of the hypothalamo-pituitary-ovarian axis following low dose bisphenol-A exposure in Wistar rats. Anat Cell Biol 2021; 54:212-224. [PMID: 33967032 PMCID: PMC8225470 DOI: 10.5115/acb.20.215] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 01/16/2021] [Accepted: 02/03/2021] [Indexed: 01/02/2023] Open
Abstract
Bisphenol A is a chemical used primarily as a monomer in the production of polycarbonate plastics and epoxy resins. It is a synthetic chemical compound that is produced in billions of pounds annually, and tagged as an endocrine disruptor. Bisphenol A is a high production synthetic chemical compound that is used in the production of many consumables and equipments of daily consumption and use by man. Growing interest in possible health threats posed by endocrine disrupting chemicals (bisphenol-A inclusive), as these substances are in our environment, food, and many consumer products. Therefore, this study aims to determine bisphenol-A effects on the hypothalamo-pituitary-ovarian axis, and role of melatonin in this regard. Forty-two Wistar rats were bred, grouped into 7, with each group consisting of 6 rats. Experimental groups were administered low and high doses of bisphenol-A and melatonin, starting from day 19, and was continued for 7 weeks orally. They were left to develop into full adults and were sacrificed on day 120±4 days. Blood samples, hypothalamus, pituitary and ovarian tissues were excised for biochemical and tissue antioxidants assays as well as genetic studies. Results show elevated gonadotropin and androgen levels. There was disruption of reactive oxygen species in the ovarian tissues, as well as alterations in the expression of genes that regulate reproduction at the hypothalamus and pituitary levels. Conclusion of early exposure to bisphenol-A is associated with prolonged duration of disruption of reproductive functions in female Wistar rats, which persist long after cessation of the exposure. Melatonin antioxidant effects give some promising outturns against bisphenol-A induced toxicities.
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Affiliation(s)
- Eniola Risikat Kadir
- Department of Anatomy, Faculty of Basic Medical Sciences, University of Ilorin, Ilorin, Nigeria
| | - Aminu Imam
- Department of Anatomy, Faculty of Basic Medical Sciences, University of Ilorin, Ilorin, Nigeria
| | - Olayemi Joseph Olajide
- Department of Anatomy, Faculty of Basic Medical Sciences, University of Ilorin, Ilorin, Nigeria.,Centre for Studies in Behavioural Neurobiology, Concordia University, Montreal, QC, Canada
| | - Moyosore Saliu Ajao
- Department of Anatomy, Faculty of Basic Medical Sciences, University of Ilorin, Ilorin, Nigeria
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Ezzati M, Velaei K, Kheirjou R. Melatonin and its mechanism of action in the female reproductive system and related malignancies. Mol Cell Biochem 2021; 476:3177-3190. [PMID: 33864572 DOI: 10.1007/s11010-021-04151-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 04/01/2021] [Indexed: 12/14/2022]
Abstract
Melatonin (N-acetyl-5-methoxytryptamine), the main product of pineal gland in vertebrates, is well known for its multifunctional role which has great influences on the reproductive system. Recent studies documented that melatonin is a powerful free radical scavenger that affects the reproductive system function and female infertility by MT1 and MT2 receptors. Furthermore, cancer researches indicate the influence of melatonin on the modulation of tumor cell signaling pathways resulting in growth inhibitor of the both in vivo/in vitro models. Cancer adjuvant therapy can also benefit from melatonin through therapeutic impact and decreasing the side effects of radiation and chemotherapy. This article reviews the scientific evidence about the influence of melatonin and its mechanism of action on the fertility potential, physiological alteration, and anticancer efficacy, during experimental and clinical studies.
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Affiliation(s)
- Maryam Ezzati
- Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran. .,Immunology Research Center, Tabriz University of Medical Sciences, PO. Box: 51376563833, Tabriz, Iran.
| | - Kobra Velaei
- Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Raziyeh Kheirjou
- Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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Abdel-Wahab A, Hassanin KMA, Ibrahim SS, El-Kossi DMMH, Abdel-Razik ARH. Developmental Programming: Physiological Impacts of Prenatal Melatonin Administration on Reproductive Capacity and Serum Triiodothyronine of Adult Female Offspring Rat Born to Moms Exposed to Bisphenol A During Pregnancy. Reprod Sci 2021; 28:1956-1966. [PMID: 33469879 DOI: 10.1007/s43032-020-00452-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 12/29/2020] [Indexed: 11/30/2022]
Abstract
Gestational bisphenol A (BPA) exposure induced multiple programmed diseases in the adult offsprings. Thus, this study targeted exploring the physiological impacts of melatonin (MEL) as a reprogramming strategy against in utero BPA exposure on reproductive capacity of adult F1 female rat offspring. Forty adult pregnant albino female rats were divided equally into 5 groups (n = 8): group I (control), group II (low-dose BPA; 25 μg BPA/kg B.w.t.), group III (low-dose BPA + 10 mg MEL/kg B.w.t.), group IV (high-dose BPA; 250 μg/kg B.w.t.), and group V (high-dose BPA + MEL). Treatments were given daily by subcutaneous (s/c) injection from the fourth day of pregnancy until full term. After delivery, female offspring were selected, and on postnatal day 60, adult offspring were examined for estrus regularity and then were sacrificed at estrus to collect blood and tissue samples. Findings clarified that in utero BPA exposure (both doses) increased significantly (P < 0.05) the ovarian weights and the serum levels of estrogen but decreased that of triiodothyronine (T3) compared to control groups. Significant increasing of serum malondialdehyde (MDA) and decreasing of total antioxidant capacity (TAC) were also detected. Both doses of BPA disturbed remarkably the estrus cycles and caused marked aberrations in ovarian and uterine tissues. Interestingly, prenatal MEL co-treatment with BPA mitigated significantly all of these degenerative changes. Thus, this study first demonstrated that prenatal MEL therapy could be used as a potent reprogramming intervention against BPA-induced reproductive disorders in the adult F1 female rat offspring.
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Affiliation(s)
- Ahmed Abdel-Wahab
- Physiology Department, Faculty of Veterinary Medicine, Minia University, Minia, 61519, Egypt.
| | - Kamel M A Hassanin
- Biochemistry Department, Faculty of Veterinary Medicine, Minia University, Minia, 61519, Egypt
| | - Shawky S Ibrahim
- Physiology Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62511, Egypt
| | - Dina M M H El-Kossi
- Physiology Department, Faculty of Veterinary Medicine, Minia University, Minia, 61519, Egypt
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Albuquerque YMLD, Silva WED, Souza FDAL, Teixeira VW, Teixeira ÁAC. Melatonin on hypothyroidism and gonadal development in rats: a review. JBRA Assist Reprod 2020; 24:498-506. [PMID: 32945645 PMCID: PMC7558891 DOI: 10.5935/1518-0557.20200053] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
We evaluated the evidence in research on the effects of melatonin on hypothyroidism and gonadal development. According to the World Health Organization, thyroid disorders due to iodine deficiency affect about 740 million people worldwide. Hypothyroidism is a thyroid dysfunction characterized by hypometabolism of the gland, with reduced or physiologically normal T3 and T4 serum levels, and high TSH level. This disorder occurs mainly in adult women in the reproductive phase, with a prevalence of 2% among the world's female population, with profound repercussions on gestation and fetal formation. During the gestational period, the thyroid is initially stimulated by high concentrations of human chorionic gonadotrophin; thus, maintaining maternal euthyroidism during pregnancy and lactation is fundamental for fetal growth and development. Besides, the hormones produced by this gland are involved in the formation of various organs, such as the skin, brain and gonads. Hypothyroidism is associated with several menstrual abnormalities, anovulation and hyperprolactinemia, resulting in a high rate of abortions, premature births, placental rupture, and weight-related neonatal deficits. In addition, there are studies showing that hypothyroidism can affect ovarian morphology (number of ovarian follicles) and testicular morphology (changes in the testicular-lumen epithelium). Melatonin is a hormone known to modulate the estrous cycle and pregnancy, and studies show that the exogenous application of melatonin increased T4 levels in female rats and controlled the decrease in T3 serum levels, reverting the sigs of hypothyroidism.
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Affiliation(s)
| | - Welma Emídio da Silva
- Departamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco- PE, Brazil
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Hao EY, Wang DH, Chang LY, Huang CX, Chen H, Yue QX, Zhou RY, Huang RL. Melatonin regulates chicken granulosa cell proliferation and apoptosis by activating the mTOR signaling pathway via its receptors. Poult Sci 2020; 99:6147-6162. [PMID: 33142533 PMCID: PMC7647829 DOI: 10.1016/j.psj.2020.08.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Revised: 07/24/2020] [Accepted: 08/06/2020] [Indexed: 12/17/2022] Open
Abstract
Melatonin is a key regulator of follicle granular cell maturation and ovulation. The mammalian target of rapamycin (mTOR) pathway plays an important role in cell growth regulation. Therefore, our aim was to investigate whether the mTOR signaling pathway is involved in the regulation of melatonin-mediated proliferation and apoptotic mechanisms in granulosa cells. Chicken follicle granular cells were cultured with melatonin (0, 2, 20, or 200 μmol/L) for 48 h. The results showed that melatonin treatment enhanced proliferation and suppressed apoptosis in granular cells at 20 μmol/L and 200 μmol/L (P < 0.05) by upregulation of cyclin D1 (P < 0.01) and Bcl-2 (P < 0.01) and downregulation of P21, caspase-3, Beclin1, and LC3-II (P < 0.01). The effects resulted in the activation of the mTOR signaling pathway by increasing the expression of avTOR, PKC, 4E-BP1, S6K (P < 0.05), p-mTOR, and p-S6K. We added an mTOR activator and inhibitor to the cells and identified the optimal dose (10 μmol/L MHY1485 and 100 nmol/L rapamycin) for subsequent experiments. The combination of 20 μmol/L melatonin and 10 μmol/L MHY1485 significantly enhanced granulosa cell proliferation (P < 0.05), while 100 nmol/L rapamycin significantly inhibited proliferation and enhanced apoptosis (P < 0.05), but this action was reversed in the 20-μmol/L melatonin and 100-nmol/L rapamycin cotreatment groups (P < 0.05). This was confirmed by mRNA and protein expression that was associated with proliferation, apoptosis, and autophagy (P < 0.05). The combination of 20 μmol/L melatonin and 10 μmol/L MHY1485 also activated the mTOR pathway upstream genes PI3K, AKT1, and AKT2 and downstream genes PKC, 4E-BP1, and S6K (P < 0.05), as well as protein expression of p-mTOR and p-S6K. Rapamycin significantly inhibited the mTOR pathway-related genes mRNA levels (P < 0.05). In addition, activation of the mTOR pathway increased melatonin receptor mRNA levels (P < 0.05). In conclusion, these findings demonstrate that melatonin regulates chicken granulosa cell proliferation and apoptosis by activating the mTOR signaling pathway via its receptor.
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Affiliation(s)
- Er-Ying Hao
- College of Animal Science and Technology, Hebei Agricultural University, Baoding Hebei 071001, China
| | - De-He Wang
- College of Animal Science and Technology, Hebei Agricultural University, Baoding Hebei 071001, China
| | - Li-Yun Chang
- College of Veterinary Medicine, Hebei Agricultural University, Baoding Hebei 071001, China
| | - Chen-Xuan Huang
- College of Animal Science and Technology, Hebei Agricultural University, Baoding Hebei 071001, China
| | - Hui Chen
- College of Animal Science and Technology, Hebei Agricultural University, Baoding Hebei 071001, China.
| | - Qiao-Xian Yue
- College of Animal Science and Technology, Hebei Agricultural University, Baoding Hebei 071001, China
| | - Rong-Yan Zhou
- College of Animal Science and Technology, Hebei Agricultural University, Baoding Hebei 071001, China
| | - Ren-Lu Huang
- College of Animal Science and Technology, Hebei Agricultural University, Baoding Hebei 071001, China
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13
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He X, Zhang Z, Chu M. The effect of SNP rs400827589 in exon 2 of the MTNR1B gene on reproductive seasonality and litter size in sheep. Vet Med Sci 2020; 6:804-812. [PMID: 32378356 PMCID: PMC7738726 DOI: 10.1002/vms3.280] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 04/06/2020] [Accepted: 04/09/2020] [Indexed: 12/13/2022] Open
Abstract
In mammals, the melatonin receptor gene has been widely studied since it has a great influence on reproductive traits. However, little is known about the association between polymorphism of the coding region of the MTNR1B gene and year‐round oestrus or the litter size in Small Tail Han sheep. To better understand the effects of single nucleotide polymorphism (SNP) rs400827589 in MTNR1B, a population polymorphism analysis was conducted using genotyping data in 45 sheep breeds around the world. The results indicated that TT was the dominant genotype in all sheep breeds. The associations of this SNP with reproductive seasonality and litter size in Small Tail Han sheep showed rs400827589 was correlated with fecundity as assessed by reproductive seasonality and litter size (p < .05). Bioinformatics analysis indicated the change in amino acid from Ile to Leu may affect the function of the MTNR1B protein by impacting the secondary and tertiary protein structures. The present results demonstrate that rs400827589 could be used in the marker‐assisted selection of the litter size in Small Tail Han sheep.
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Affiliation(s)
- Xiaoyun He
- Key Laboratory of Animal Genetics and Breeding and Reproduction of Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhuangbiao Zhang
- Key Laboratory of Animal Genetics and Breeding and Reproduction of Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Mingxing Chu
- Key Laboratory of Animal Genetics and Breeding and Reproduction of Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
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de Albuquerque YML, Ferreira CGM, D Assunção CG, Baptista MGP, Alves RDC, Wanderley Teixeira V, Teixeira ÁAC. Effect of melatonin on gonad and thyroid development of offspring of hypothyroid pregnant rats. Biotech Histochem 2020; 95:522-531. [PMID: 32124645 DOI: 10.1080/10520295.2020.1729416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
We investigated the effects of melatonin on rats with induced hypothyroidism during gestation as well as its effect on the development of the gonads of their offspring. Fifteen pregnant rats were divided into three groups: GC, rats without induced hypothyroidism; GH, rats with induced hypothyroidism; GHM, rats with induced hypothyroidism plus melatonin. Hypothyroidism was induced by oral administration of 6-propyl-2-thiouracil and melatonin was applied subcutaneously. Treatments were performed during gestation and lactation. For the matrices, we evaluated the number of pups, body weight gain, ovarian weight, thyroid weight, organosomatic index, thyroid stimulating hormone (TSH) dose and thyroid morphometry. For the pups, weight gain, TSH, weight, morphometry of the gonads and organosomatic index were analyzed, as well as the cell proliferation index. TSH was elevated only in the matrices of GH animals. Melatonin prevented reduction of ovarian and thyroid weight, number of pups, follicular diameter and thyroid epithelial proportion of the matrices with hypothyroidism. The offspring of rats of the GH group exhibited less body weight gain, gonad and thyroid weight, and gonad cell proliferation index compared to the offspring born of rats of the GC and GHM groups. Melatonin prevented the effects of maternal hypothyroidism on the offspring of rats.
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Affiliation(s)
| | | | | | | | - Rebeka da Costa Alves
- Department of Animal Morphology and Physiology, Rural Federal University of Pernambuco , Recife, Brazil
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Evidence that Melatonin Increases Inhibin Beta-A and Follistatin Gene Expression in Ovaries of Pinealectomized Rats. Reprod Sci 2020; 27:1455-1464. [PMID: 32046468 DOI: 10.1007/s43032-020-00162-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 12/11/2019] [Indexed: 12/12/2022]
Abstract
Melatonin plays an important role in the regulation of ovarian function including oocyte maturation in different mammalian species. Many studies indicate that melatonin has an impact on the ovarian function of a variety of ovarian cells. However, the information on the exact mechanism and involved hormones is low. To evaluate inhibin beta-A (INHBA) and follistatin (FST) expression in the ovaries of pinealectomized rats treated with melatonin, thirty adult female Wistar rats were randomized into three groups of ten animals each: group 1 (GSh), sham-operated controls receiving vehicle; group 2 (GPx), pinealectomized animals receiving vehicle; and group 3 (GPxMe), pinealectomized animals receiving replacement melatonin (1.0 mg/kg body weight. It was assumed that each animal drank 6.5 ± 1.2 ml per night and weighs approximately 300 g.) for 60 consecutive days. The ovaries were collected for mRNA abundance and protein of INHBA and FST by qRT-PCR and immunohistochemical analyses, respectively. Treatment with melatonin resulted in the upregulation of INHBA and FST genes in the ovarian tissue of the melatonin-treated animals (GPxMe), when compared with GPx. These findings were then confirmed by analyzing the expression of protein by immunohistochemical analyses, which revealed higher immunoreactivity of INHBA and FST in GPxMe animals in the follicular cells compared with GSh and GPx rats. Melatonin increases the expression of INHBA and FST in the ovaries of pinealectomized female rats.
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He X, Zhang Z, Liu Q, Chu M. Polymorphisms of the melatonin receptor 1A gene that affects the reproductive seasonality and litter size in Small Tail Han sheep. Reprod Domest Anim 2019; 54:1400-1410. [PMID: 31355975 PMCID: PMC6852127 DOI: 10.1111/rda.13538] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 07/23/2019] [Indexed: 12/22/2022]
Abstract
Previous researches have shown that MTNR1A plays an essential role in sheep reproduction. However, most researches focused more on the reproductive seasonality of sheep, and few scientists had studied the association of polymorphisms of the MTNR1A gene with ovine litter size and reproductive seasonality. Therefore, we chose MTNR1A gene to detect its novel sequence polymorphisms and population genetics and analyse their association with seasonal reproduction and litter size in ewes. The mRNA expression level in hypothalamus, pituitary and ovary was also detected. In this study, five polymorphisms (g.15118664G > T, g.15118683C > T, g.15118756C > T, g.15118774C > T and g.15118951G > A) were identified in exon 2. Most importantly, the g.15118683C > T and g.15118951G > A were significant difference between year‐round oestrous sheep and seasonal oestrous sheep (p < .01), and g.15118756C > T had a great effect on litter size of Small Tail Han sheep (p < .05). In addition, the mRNA expression level of MTNR1A in the hypothalamus of polytocous Small Tail Han sheep was significantly higher than that in monotocous Small Tail Han sheep (p < .01) and the expression of MTNR1A in the hypothalamus of year‐round oestrous sheep was significantly higher than that in seasonal oestrous sheep (p < .01). Polymorphisms in exon 2 may regulate the reproductive seasonality and litter size of ewes by influencing gene expression to regulate the reproductive seasonality and litter size of ewes. Our studies provided useful guidance in marker‐assisted selection of the litter size in Small Tail Han sheep.
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Affiliation(s)
- Xiaoyun He
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhuangbiao Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Qiuyue Liu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Mingxing Chu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
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Wang YF, Sun XF, Han ZL, Li L, Ge W, Zhao Y, De Felici M, Shen W, Cheng SF. Protective effects of melatonin against nicotine-induced disorder of mouse early folliculogenesis. Aging (Albany NY) 2019; 10:463-480. [PMID: 29615536 PMCID: PMC5892698 DOI: 10.18632/aging.101405] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 03/22/2018] [Indexed: 02/07/2023]
Abstract
In this paper, we show that neonatal mice injected for five consecutive days with nicotine display impaired germ cell cyst breakdown and primordial follicle assembly resulting in decreased ovarian reserve lasting until sex maturation age. The effects of nicotine on the pups ovaries were associated with decreased expression of oocyte specific genes such as Nobox, Lhx8, Figlα and Sohlh2. Moreover, the ovaries of pups injected with nicotine showed increased level of cell oxidative stress and autophagic markers (upregulation of AMPKα-1, increased ratio LC3-II/LC3-I, downregulation of AKT and mTOR). Noteworthy, all these effects were counteracted by the administration of the hormone melatonin in 1 μM. In vitro culture of 0 dpp ovaries for 5 days in the presence of 10 μM nicotine reproduced its effect on germ cell cyst breakdown and primordial follicle assembly, furthermore it also revealing about 20% reduction of somatic cells proliferation, and these effects was prevented when melatonin was added to the medium. Taken together these results show that nicotine exposure can adversely affect the establishment of the ovarian reserve in the mouse likely by locally inducing cellular stress altering the primordial follicle assembly and that melatonin, however, is able to counteract such effects.
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Affiliation(s)
- Yu-Feng Wang
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
| | - Xiao-Feng Sun
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Ze-Li Han
- The First Affiliated Hospital of Chinese PLA General Hospital, Beijing 100039, China
| | - Lan Li
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China.,College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Wei Ge
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Yong Zhao
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China.,College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Massimo De Felici
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome 00133, Italy
| | - Wei Shen
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China.,College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Shun-Feng Cheng
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China.,College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China
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Lombardi LA, Mattos LSD, Simões RS, Florencio-Silva R, Sasso GRDS, Carbonel AAF, Simões MJ, Baracat EC, Soares JM. Melatonin may prevent or reverse polycystic ovary syndrome in rats. ACTA ACUST UNITED AC 2019; 65:1008-1014. [PMID: 31389515 DOI: 10.1590/1806-9282.65.7.1008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 04/20/2019] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To evaluate the ovarian effects of melatonin (Mel) in a rat model of polycystic-ovary-syndrome (PCOS) before and after permanent estrus induction. METHODS Thirty-two adult-female rats with regular estrous cycle were equally divided into four groups: 1) GCtrl - at estrous phase. 2) GPCOS - at permanent-estrous phase. 3) GMel1 - treated for 60 days with Mel (0.4 mg/Kg) during permanent estrus induction and 4) GMel2 - rats with PCOS and treated for 60 days with Mel. After that, the animals were euthanized, and the ovaries were removed and processed for paraffin embedding. Sections were stained with H.E. for histomorphometry or subjected to immunohistochemistry for Ki-67 and cleaved caspase-3 (Casp-3) detections. RESULTS The GPCOS showed lack of corpus luteum and several ovarian cysts, as well as interstitial-like cells. The presence of corpus luteum and a significant increase in primary and antral follicles were observed in Mel-treated groups, which also showed a decrease in the number of ovarian cysts and in the area occupied by interstitial-like cells. These results were more evident in GMel1. The percentage of Ki-67-positive cells was significantly higher in the Mel-treated groups, mainly in the GMel2, as compared to GPCOS. On the other hand, the percentage of Casp-3-positive cells was significantly lower in granulosa cells of GMel1, whereas it was significantly higher in the interstitial-like cells of GMel2, in comparison to GPCOS. CONCLUSION Melatonin administration prevents the permanent estrus state in the PCOS rat model. This effect is more efficient when melatonin is administered before permanent estrus induction.
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Affiliation(s)
- Leonardo Augusto Lombardi
- Departamento de Morfologia e Genética, Escola Paulista de Medicina da Universidade Federal de São Paulo, EPM/Unifesp, São Paulo, SP, Brasil
| | - Leandro Sabará de Mattos
- Departamento de Morfologia e Genética, Escola Paulista de Medicina da Universidade Federal de São Paulo, EPM/Unifesp, São Paulo, SP, Brasil
| | - Ricardo Santos Simões
- Departamento de Obstetrícia e Ginecologia, Faculdade de Medicina da Universidade de São Paulo, FMUSP, São Paulo, SP, Brasil
| | - Rinaldo Florencio-Silva
- Departamento de Morfologia e Genética, Escola Paulista de Medicina da Universidade Federal de São Paulo, EPM/Unifesp, São Paulo, SP, Brasil
| | - Gisela Rodrigues da Silva Sasso
- Departamento de Morfologia e Genética, Escola Paulista de Medicina da Universidade Federal de São Paulo, EPM/Unifesp, São Paulo, SP, Brasil
| | - Adriana Aparecida Ferraz Carbonel
- Departamento de Morfologia e Genética, Escola Paulista de Medicina da Universidade Federal de São Paulo, EPM/Unifesp, São Paulo, SP, Brasil
| | - Manuel Jesus Simões
- Departamento de Morfologia e Genética, Escola Paulista de Medicina da Universidade Federal de São Paulo, EPM/Unifesp, São Paulo, SP, Brasil
| | - Edmund Chada Baracat
- Departamento de Obstetrícia e Ginecologia, Faculdade de Medicina da Universidade de São Paulo, FMUSP, São Paulo, SP, Brasil
| | - José Maria Soares
- Departamento de Obstetrícia e Ginecologia, Faculdade de Medicina da Universidade de São Paulo, FMUSP, São Paulo, SP, Brasil
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Bahman M, Hajimehdipoor H, Bioos S, Hashem-Dabaghian F, Afrakhteh M, Tansaz M. Effect of Aslagh Capsule, a Traditional Compound Herbal Product on Oligomenorrhea in Patients with Polycystic Ovary Syndrome: A Three-Arm, Open-label, Randomized, Controlled Trial. Galen Med J 2019; 8:e1261. [PMID: 34466481 PMCID: PMC8343515 DOI: 10.31661/gmj.v8i0.1261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Revised: 09/01/2018] [Accepted: 10/25/2018] [Indexed: 12/15/2022] Open
Abstract
Background: Oligomenorrhea is a common complaint in patients with polycystic ovary syndrome (PCOS). There are some useful medicinal recommendations such as Aslagh product (include fennel fruits, carrot seeds, chaste tree fruits) in Iranian traditional medicine for the treatment of oligomenorrhea in PCOS. Hence, the present investigation was designed to compare Aslagh capsule with metformin on the oligomenorrhea. Materials and Methods: One hundred fifty women aged between 18-43 years with oligomenorrhea due to PCOS were randomly divided into Aslagh, metformin, and Aslagh + metformin groups. The occurrence of menstrual bleeding was considered as the primary outcome. Menstrual cyclicity, duration, and volume of the bleeding were also evaluated. Results: Occurrence of menstrual bleeding was 87.2% in all patients, with no significant difference between the three groups (P> 0.05). Menstrual cyclicity significantly improved from baseline in Aslagh and Aslagh + metformin groups (P=0.02). Duration of menstrual bleeding was significantly higher in Aslagh group in the first and the second menstrual bleeding cycle compared to the other two groups (P<0.05). No significant change was observed in the volume of the bleeding after the intervention in any of the three groups. The occurrence of menstrual bleeding in Aslagh group was significantly (P=0.03) higher than the other two groups in the fourth month (drug-free period). Conclusion: Aslagh capsule showed beneficial effects similar to metformin in the treatment of oligomenorrhea in PCOS women and could be suggested for use as an alternative treatment in these patients.
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Affiliation(s)
- Maryam Bahman
- Department of Traditional Medicine, School of Traditional Medicine, Shahid Beheshti University of Medical Sciences. Tehran, Iran
| | - Homa Hajimehdipoor
- Traditional Medicine and Materia Medica Research Center and Department of Traditional Pharmacy, School of Traditional Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Soodabeh Bioos
- Department of Traditional Medicine, School of Traditional Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Fataneh Hashem-Dabaghian
- Research Institute for Islamic and Complementary Medicine, Iran University of Medical Sciences. Tehran, Iran
| | - Maryam Afrakhteh
- Department of Obstetrics and Gynecology, Shohadaye Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mojgan Tansaz
- Department of Traditional Medicine, School of Traditional Medicine, Shahid Beheshti University of Medical Sciences. Tehran, Iran
- Correspondence to: Mojgan Tansaz, Department of Traditional Medicine, School of Traditional Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran Telephone Number: +98-2188773521 Email Address:
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Xiao L, Hu J, Song L, Zhang Y, Dong W, Jiang Y, Zhang Q, Yuan L, Zhao X. Profile of melatonin and its receptors and synthesizing enzymes in cumulus-oocyte complexes of the developing sheep antral follicle-a potential estradiol-mediated mechanism. Reprod Biol Endocrinol 2019; 17:1. [PMID: 30606208 PMCID: PMC6317229 DOI: 10.1186/s12958-018-0446-7] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 12/12/2018] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND Melatonin is an amine hormone that plays an important role in regulating mammalian reproduction. This study aimed to investigate the expression pattern of melatonin synthesis enzymes AANAT and HIOMT and melatonin receptors MT1 and MT2 in sheep cumulus-oocyte complexes (COCs) as well as the change of melatonin level in follicular fluid (FF) during antral follicle development. In this research, we also study the effect of β-estradiol (E2) on MT1 and MT2 expression as well as melatonin synthesis in COCs so as to lay the foundation for further exploration of the regulation mechanism of melatonin synthesis in the ovary. METHODS COCs and FF were collected from different size (large follicles (diameter ≥ 5 mm), medium follicles (diameter 2-5 mm), and small follicles (diameter ≤ 2 mm)) of antral follicles in sheep ovaries. To assess whether E2 regulates melatonin synthase and its receptors expression in sheep COCs and whether it is mediated through estrogen receptor (ER) pathway. The collected COCs were cultured in vitro for 24 h and then treat with 1 μM E2 and/or 1 μM ICI182780 (non-selective ER antagonist). The expression of AANAT, HIOMT, MT1 and MT2 mRNA and protein were determined by qRT-PCR and western blot. The melatonin level was determined by ELISA. RESULTS The expression of AANAT, HIOMT, MT1 and MT2 were significantly higher expression in the COCs of small follicles than in those of large follicles (P < 0.05). However, the melatonin level was significantly higher in large follicle FF than in small follicle FF (P < 0.05). Further, the expression of AANAT, HIOMT, MT1, and MT2 and melatonin production were decreased by E2 treatment (P < 0.05), but when ICI182780 was added, the expression of AANAT, HIOMT, MT1, and MT2 and melatonin production recovered (P < 0.05). CONCLUSIONS We suggest that sheep COCs can synthesize melatonin, but this ability is decreased with increasing follicle diameter. Furthermore, E2 play an important role in regulated the expression of MT1 and MT2 as well as melatonin synthesis in sheep COCs through the ER pathway.
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Affiliation(s)
- Longfei Xiao
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, China
| | - Junjie Hu
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, China.
| | - Liangli Song
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, China
| | - Yong Zhang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, China
| | - Weitao Dong
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, China
| | - Yuting Jiang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, China
| | - Quanwei Zhang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, China
| | - Ligang Yuan
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, China
| | - Xingxu Zhao
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, China.
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Wang X, Meng K, He Y, Wang H, Zhang Y, Quan F. Melatonin Stimulates STAR Expression and Progesterone Production via Activation of the PI3K/AKT Pathway in Bovine Theca Cells. Int J Biol Sci 2019; 15:404-415. [PMID: 30745830 PMCID: PMC6367557 DOI: 10.7150/ijbs.27912] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 12/03/2018] [Indexed: 02/06/2023] Open
Abstract
Melatonin is present in mammalian follicular fluid and plays an important role in regulating steroidogenesis in follicular cells. In this study, we report the effect of melatonin on steroidogenesis in the theca interna (TI) in small bovine follicles and theca cells (TCs) cultured in vitro. Treatment with melatonin significantly increased the expression of steroidogenic acute regulatory protein (STAR) and the production of progesterone in both TI and in TCs. Melatonin stimulated the phosphorylation of AKT but not ERK1/2, and the addition of luzindole (a nonspecific MT1 and MT2 inhibitor) or 4P-PDOT (specific MT2 inhibitor) reduced melatonin-induced STAR expression, progesterone secretion, and PI3K/AKT pathway activation. The effect of melatonin on the TI in follicles was more obvious than on the TCs in vitro. Results indicate that melatonin stimulates the steroidogenesis of TCs mainly via the activation of the PI3K/AKT pathway by MT1 and MT2.
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Affiliation(s)
- Xiaomei Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory of Animal Bio-Technology, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China
| | - Kai Meng
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory of Animal Bio-Technology, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China
| | - Yuanyuan He
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory of Animal Bio-Technology, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China
| | - Hengqin Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory of Animal Bio-Technology, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China
| | - Yong Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory of Animal Bio-Technology, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China
| | - Fusheng Quan
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory of Animal Bio-Technology, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China
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23
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Soriano GAM, de Ruediger FR, Zundt M, Gomes MADCN, de Souza LFA, Giometti IC, de Paula Nogueira G, Zanelli GR, de Almeida Rego FC, Castilho C. Characterization of the LH peak after short and long fixed-time artificial insemination protocols in sheep raised in the tropics. Anim Sci J 2018; 89:1245-1252. [DOI: 10.1111/asj.13051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 03/21/2018] [Accepted: 04/12/2018] [Indexed: 11/30/2022]
Affiliation(s)
| | | | - Marilice Zundt
- Universidade do Oeste Paulista; Presidente Prudente (UNOESTE); SP Brazil
| | | | | | | | | | | | | | - Caliê Castilho
- Universidade do Oeste Paulista; Presidente Prudente (UNOESTE); SP Brazil
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Wang H, Pu Y, Luo L, Li Y, Zhang Y, Cao Z. Membrane receptor-independent inhibitory effect of melatonin on androgen production in porcine theca cells. Theriogenology 2018; 118:63-71. [PMID: 29885642 DOI: 10.1016/j.theriogenology.2018.05.042] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 05/30/2018] [Accepted: 05/30/2018] [Indexed: 01/24/2023]
Abstract
Excessive secretion of androgens including androstenedione and testosterone in theca cells frequently causes female infertility in mammals. Melatonin is a potent inhibitor of androgen production in gonadal cells of several species in a membrane receptor-dependent manner. However, the function of melatonin in steroidogenesis of porcine theca cells remains unclear. Here we report that melatonin inhibits androgen biosynthesis independently of its membrane receptors in pigs. Using flow cytometry, immunofluorescence and RT-PCR we showed that the vast majority of cells isolated from the theca layer of antral follicles are indeed theca cells. Furthermore, we demonstrated that of the two of melatonin membrane receptors encoded in the porcine genome, theca cells exclusively express melatonin receptor 1B. Cell counting analysis indicated that different concentrations of melatonin did not alter the normal viability and proliferation of theca cells. Additionally, hormone radioimmunoassay and qPCR respectively showed that a high concentration of melatonin significantly repressed both androgen production and expression of steroidogenic genes involving StAR, CYP11A1, HSD3β and SET (P < 0.05), but did not impair progesterone production. Interestingly, these effects were not reversed by N-acetyl-2-benzyltryptamin, a melatonin membrane receptor antagonist. Overall, these results demonstrate that melatonin inhibits androgen production in porcine theca cells independently of its membrane receptor.
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Affiliation(s)
- Heng Wang
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Yong Pu
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Lei Luo
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Yunsheng Li
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Yunhai Zhang
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Zubing Cao
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China.
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Talpur HS, Chandio IB, Brohi RD, Worku T, Rehman Z, Bhattarai D, Ullah F, JiaJia L, Yang L. Research progress on the role of melatonin and its receptors in animal reproduction: A comprehensive review. Reprod Domest Anim 2018; 53:831-849. [PMID: 29663591 DOI: 10.1111/rda.13188] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 03/03/2018] [Indexed: 12/15/2022]
Abstract
Melatonin and its receptors play a crucial role in the regulation of the animal reproductive process, primarily in follicular development. However, the role that melatonin performs in regulating hormones related with reproduction remains unclear. Melatonin and its receptors are present both in female and male animals' organs, such as ovaries, heart, brain and liver. Melatonin regulates ovarian actions and is a key mediator of reproductive actions. Melatonin has numerous effects on animal reproduction, such as protection of gametes and embryos, response to clock genes, immune-neuroendocrine, reconciliation of seasonal variations in immune function, and silence or blockage of genes. The growth ratio of reproductive illnesses in animals has raised a remarkable concern for the government, animal caretakers and farm managers. In order to resolve this challenging issue, it is very necessary to conduct state-of-the-art research on melatonin and its receptors because melatonin has considerable physiognomies. This review article presents a current contemporary research conducted by numerous researchers from the entire world on the role of melatonin and its receptors in animal reproduction, from the year 1985 to the year 2017. Furthermore, this review shows scientific research challenges related to melatonin receptors and their explanations based on the findings of 172 numerous research articles, and also represents significant proficiencies of melatonin in order to show enthusiastic study direction for animal reproduction researchers.
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Affiliation(s)
- H S Talpur
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Education Ministry of China, Huazhong Agricultural University, Wuhan, China
| | - I B Chandio
- Shaheed Benazir Bhutto University of Veterinary and Animal Sciences, Sakrand, Pakistan
| | - R D Brohi
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Education Ministry of China, Huazhong Agricultural University, Wuhan, China
| | - T Worku
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Education Ministry of China, Huazhong Agricultural University, Wuhan, China
| | - Z Rehman
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Education Ministry of China, Huazhong Agricultural University, Wuhan, China
| | - D Bhattarai
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Education Ministry of China, Huazhong Agricultural University, Wuhan, China
| | - F Ullah
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Education Ministry of China, Huazhong Agricultural University, Wuhan, China
| | - L JiaJia
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Education Ministry of China, Huazhong Agricultural University, Wuhan, China
| | - L Yang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Education Ministry of China, Huazhong Agricultural University, Wuhan, China
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26
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Feng T, Schutz LF, Morrell BC, Perego MC, Spicer LJ. Effect of melatonin on bovine theca cells in vitro. Reprod Fertil Dev 2018; 30:643-650. [DOI: 10.1071/rd17203] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 09/11/2017] [Indexed: 12/19/2022] Open
Abstract
Melatonin affects granulosa cell function in several species but its function in theca cells is less clear, particularly in monotocous animals. Thus, the objectives of this study were to determine the effects of melatonin on theca cell steroidogenesis, gene expression and cell proliferation in a monotocous species, namely cattle. Ovaries were collected from a local bovine abattoir, from which theca cells were isolated from large (8–22 mm) follicles and treated with various hormones in serum-free medium for 24 h or 48 h. Melatonin caused a dose-dependent inhibition (P < 0.05) of LH+insulin-like growth factor 1 (IGF1)-induced androstenedione and progesterone production. Also, melatonin inhibited (P < 0.05) LH+IGF1-induced expression of steroidogenic acute regulatory protein (StAR) mRNA (via real-time polymerase chain reaction) in theca cells, but it had no effect (P > 0.10) on cytochrome P450 11A1 (CYP11A1) and cytochrome P450 17A1 (CYP17A1) mRNA abundance. In LH+IGF1-treated theca cells, melatonin decreased caspase 3 (CASP3) mRNA to levels similar to those observed in LH-treated theca cells. In contrast, melatonin increased (P < 0.05) the number of bovine theca cells in both LH- and LH+IGF1-treated cultures. In conclusion, melatonin may act as an endocrine regulator of ovarian function in cattle by stimulating theca cell proliferation and inhibiting differentiation via inhibition of hormone-induced steroidogenesis.
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27
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Yumnamcha T, Khan ZA, Rajiv C, Devi SD, Mondal G, Sanjita Devi H, Bharali R, Chattoraj A. Interaction of melatonin and gonadotropin-inhibitory hormone on the zebrafish brain-pituitary-reproductive axis. Mol Reprod Dev 2017; 84:389-400. [PMID: 28295807 DOI: 10.1002/mrd.22795] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 02/07/2017] [Accepted: 03/04/2017] [Indexed: 11/07/2022]
Abstract
Circadian cycles and photoperiod are known to influence reproductive physiology in several animals. Neuropeptides, such as gonadotropin-inhibitory hormone (GNIH) and gonadotropin-releasing hormone (GNRH), are influenced by melatonin in birds and mammals. The present study demonstrates the role of melatonin in oocyte maturation in the zebrafish (Danio rerio), via the brain-pituitary-reproductive axis, under different photic conditions. Melatonin was significantly higher both in the whole brain and ovary under continuous dark (DD) compared to continuous light (LL) conditions. Transcription of gnih in the brain was high in LL, but low in DD; similarly, melatonin exogenous treatment reduced gnih in cultured brain in a dose-dependent manner. Expression of gnrh3, however, was high in both continuous photic conditions (DD and LL), whereas fshb and lhb were high only during DD. kiss2, another neuropeptide, was high in LL, but kiss1 remain unchanged among the conditions. At the gonad level, expression of fshr, lhcgr, mtnr1aa, and mtnr1ab tracked with the expression of their respective ligand in DD and LL. The expression of mprb is high in DD ovary, although intra-ovarian growth factors (tgfb1a and bmp15) were low. The measured increased percentages of germinal vesicle breakdown, expression of Cyclin B1, and reduced Cdc2p34 phosphorylation are consistent with increased maturation in the dark. Our study thus links melatonin to the inhibition of gnih in the brain-pituitary-reproductive axis of zebrafish in response to photic conditions.
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Affiliation(s)
- Thangal Yumnamcha
- Biological Rhythm Laboratory, Animal Resources Programme, Institute of Bioresources and Sustainable Development, Government of India, Imphal, Manipur, India
| | - Zeeshan A Khan
- Biological Rhythm Laboratory, Animal Resources Programme, Institute of Bioresources and Sustainable Development, Government of India, Imphal, Manipur, India
| | - Chongtham Rajiv
- Biological Rhythm Laboratory, Animal Resources Programme, Institute of Bioresources and Sustainable Development, Government of India, Imphal, Manipur, India
| | - Sijagurumayum D Devi
- Biological Rhythm Laboratory, Animal Resources Programme, Institute of Bioresources and Sustainable Development, Government of India, Imphal, Manipur, India
| | - Gopinath Mondal
- Biological Rhythm Laboratory, Animal Resources Programme, Institute of Bioresources and Sustainable Development, Government of India, Imphal, Manipur, India
| | - Haobijam Sanjita Devi
- Biological Rhythm Laboratory, Animal Resources Programme, Institute of Bioresources and Sustainable Development, Government of India, Imphal, Manipur, India
| | - Rupjyoti Bharali
- Department of Biotechnology, Gauhati University, Guwahati, Assam, India
| | - Asamanja Chattoraj
- Biological Rhythm Laboratory, Animal Resources Programme, Institute of Bioresources and Sustainable Development, Government of India, Imphal, Manipur, India
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Hu JJ, Zhang XY, Zhang Y, Zhao XX, Li FD, Tao JZ. Molecular characterization and expression profile of the melatonin receptor MT1 in the ovary of Tianzhu white yak (Bos grunniens). Gen Comp Endocrinol 2017; 242:101-107. [PMID: 26482006 DOI: 10.1016/j.ygcen.2015.10.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2015] [Revised: 09/30/2015] [Accepted: 10/08/2015] [Indexed: 11/19/2022]
Abstract
Melatonin plays crucial roles in a wide range of ovarian physiological functions via the melatonin receptors (MRs). Structure and function of MRs have been well studied in sheep, cattle, and humans, but little information exists on the genetic characterization and function of these receptors in the ovary of the white yak. In the present study, the melatonin receptor MT1 was cloned by RT-PCR in the ovary of white yak; the MT1 cDNA fragment obtained (843bp) comprised an open reading frame (827bp) encoding a protein containing 275 residues, characterized by seven transmembrane regions and an NRY motif, two distinct amino acid replacements were found. The white yak MT1 had a 83.9-98.6% protein sequence identity with that of nine other mammals. Using RT-PCR, the expression levels of MT1, MT2, and LHR in the ovary of pregnant and non-pregnant white yaks were compared, revealing higher levels of all genes in pregnant yaks: 3.83-fold increase for MT1 (P<0.05), 1.39-fold increase for MT2, and 15.32-fold increase for LHR (P<0.05). The distribution of MT1 in yak ovaries was observed using immunohistochemistry on paraffin embedded ovarian sections: MT1 was mainly present on primordial follicles (PF), granulosa cells (GCs), oocytes, and corpus luteum (CL) cells; MT1 expression showed an increasing tendency from PF to GCs to oocytes and to large CL cells. It is suggested that melatonin and MT1 are associated with the corpus luteum function of pregnancy maintenance and follicular development during oocyte maturation in the white yak.
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Affiliation(s)
- Jun Jie Hu
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Xiao Yu Zhang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Yong Zhang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Xing Xu Zhao
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China.
| | - Fa Di Li
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Jin Zhong Tao
- Department of Animal Science, Ningxia University, Yinchuan, China
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29
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Jia Y, Yang M, Zhu K, Wang L, Song Y, Wang J, Qin W, Xu Z, Chen Y, Liu G. Melatonin implantation improved the egg-laying rate and quality in hens past their peak egg-laying age. Sci Rep 2016; 6:39799. [PMID: 28008984 PMCID: PMC5180240 DOI: 10.1038/srep39799] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 11/29/2016] [Indexed: 12/21/2022] Open
Abstract
The egg-laying rates of hens approximately 470 days of age exhibited a positive correlation to blood melatonin levels. The hens with an egg-laying rate <30%, 30~90% and ≥90% had blood melatonin levels of 5.8 ± 2.6, 74.0 ± 32.9 and 445.9 ± 115.3 ng/ml, respectively. When 10 mg of melatonin was implanted into the hens at 300, 360, 470 and 550 days of age, the egg-laying rates increased 4.63 ± 0.46%, 8.38 ± 1.45%, 4.93 ± 0.85% and 7.93 ± 0.91%, respectively, compared to that of the controls. Melatonin implantation in hens at 300–470 days of age was observed to enhance egg production and reduce the rate of appearance of sharpei eggs. Melatonin (10 mg) implanted in hens 360 days of age did not influence the blood levels of progesterone (P4) or the gene expression levels of ovarian follicle stimulating hormone receptor (FSHR), luteinizing hormone receptor (LHR), oestradiol receptor alpha (ERα), superoxide dismutase 2 (SOD2) or melatonin receptor 1 (MT1). In contrast, melatonin significantly elevated the serum oestradiol-17β (E2) content, down-regulated the gene expression of gonadotropin-inhibitory hormone receptor (GnIHR), and enhanced the expression of melatonin receptor 2 (MT2). This result indicates that the improved egg-laying rate by melatonin was the result of increased serum oestradiol and decreased ovarian GnIHR. These alterations may be mediated by MT2 activation.
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Affiliation(s)
- Yaxiong Jia
- Beijing Animal Husbandry Station, Beijing, China
| | - Minghui Yang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Kuanfeng Zhu
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Liang Wang
- Beijing Animal Husbandry Station, Beijing, China
| | - Yukun Song
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jing Wang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Wenxiang Qin
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Zhiyuan Xu
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China.,College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin, China
| | - Yu Chen
- Beijing Animal Husbandry Station, Beijing, China
| | - Guoshi Liu
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China
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30
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Alsiddig MA, Yu SG, Pan ZX, Widaa H, Badri TM, Chen J, Liu HL. Association of single nucleotide polymorphism inmelatonin receptor 1Agene with egg production traits in Yangzhou geese. Anim Genet 2016; 48:245-249. [DOI: 10.1111/age.12517] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/29/2016] [Indexed: 01/20/2023]
Affiliation(s)
- M. A. Alsiddig
- Department of Animal Genetics, Breeding and Reproduction; College of Animal Science and Technology; Nanjing Agricultural University; Nanjing 210095 China
- Department of Animal Production; College of Agriculture; Alzaiem Alazhari University; 1432 Khartoum North 13311, Sudan
| | - S. G. Yu
- Department of Animal Genetics, Breeding and Reproduction; College of Animal Science and Technology; Nanjing Agricultural University; Nanjing 210095 China
| | - Z. X. Pan
- Department of Animal Genetics, Breeding and Reproduction; College of Animal Science and Technology; Nanjing Agricultural University; Nanjing 210095 China
| | - H. Widaa
- Department of Animal Genetics, Breeding and Reproduction; College of Animal Science and Technology; Nanjing Agricultural University; Nanjing 210095 China
| | - T. M. Badri
- Department of Animal Genetics, Breeding and Reproduction; College of Animal Science and Technology; Nanjing Agricultural University; Nanjing 210095 China
| | - J. Chen
- Department of Animal Genetics, Breeding and Reproduction; College of Animal Science and Technology; Nanjing Agricultural University; Nanjing 210095 China
| | - H. L. Liu
- Department of Animal Genetics, Breeding and Reproduction; College of Animal Science and Technology; Nanjing Agricultural University; Nanjing 210095 China
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Stepniak J, Karbownik-Lewinska M. 17β-estradiol prevents experimentally-induced oxidative damage to membrane lipids and nuclear DNA in porcine ovary. Syst Biol Reprod Med 2015; 62:17-21. [PMID: 26677908 DOI: 10.3109/19396368.2015.1101510] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Estrogens, with their principle representative 17β-estradiol, contribute to the redox state of cells showing both pro- and antioxidative properties. In the ovary, being the main source of estrogens, maintaining balance between the production and detoxification of ROS is crucial. Whereas ovary estrogen concentration is difficult to estimate, its circulating concentration in women may reach the nanomolar level. The aim of the study was to evaluate the effects of 17β-estradiol on oxidative damage to membrane lipids (lipid peroxidation, LPO) and to nuclear DNA in the porcine ovary under basal conditions and in the presence of Fenton reaction (Fe(2+)+H2O2→Fe(3+)+(•)OH + OH(-)) substrates. Ovary homogenates and DNA were incubated in the presence of 17β-estradiol (1 mM-1 pM), without/with FeSO4 (30 μM) + H2O2 (0.5 mM). Malondialdehyde + 4-hydroxyalkenals (MDA + 4-HDA) concentration (LPO index) was measured spectrophotometrically. The concentration of 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) (DNA damage index) was measured by HPLC. We observed that 17β-estradiol did not alter the basal level of oxidative damage, but reduced Fe(2+)+H2O2-induced oxidative damage to membrane lipids when ≥10 nM and to DNA at concentrations ≥1 nM. In the ovary at near physiological concentration, 17β-estradiol prevents experimentally induced oxidative damage. This suggests that under physiological conditions this hormone may contribute to protecting the ovary against oxidative damage.
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Affiliation(s)
- Jan Stepniak
- a Department of Oncological Endocrinology , Medical University of Lodz and
| | - Malgorzata Karbownik-Lewinska
- a Department of Oncological Endocrinology , Medical University of Lodz and.,b Department of Endocrinology and Metabolic Diseases , Polish Mother's Memorial Hospital - Research Institute , Lodz , Poland
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32
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Rexhaj E, Pireva A, Paoloni-Giacobino A, Allemann Y, Cerny D, Dessen P, Sartori C, Scherrer U, Rimoldi SF. Prevention of vascular dysfunction and arterial hypertension in mice generated by assisted reproductive technologies by addition of melatonin to culture media. Am J Physiol Heart Circ Physiol 2015; 309:H1151-6. [PMID: 26276822 DOI: 10.1152/ajpheart.00621.2014] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Accepted: 08/14/2015] [Indexed: 12/20/2022]
Abstract
Assisted reproductive technologies (ART) induce vascular dysfunction in humans and mice. In mice, ART-induced vascular dysfunction is related to epigenetic alteration of the endothelial nitric oxide synthase (eNOS) gene, resulting in decreased vascular eNOS expression and nitrite/nitrate synthesis. Melatonin is involved in epigenetic regulation, and its administration to sterile women improves the success rate of ART. We hypothesized that addition of melatonin to culture media may prevent ART-induced epigenetic and cardiovascular alterations in mice. We, therefore, assessed mesenteric-artery responses to acetylcholine and arterial blood pressure, together with DNA methylation of the eNOS gene promoter in vascular tissue and nitric oxide plasma concentration in 12-wk-old ART mice generated with and without addition of melatonin to culture media and in control mice. As expected, acetylcholine-induced mesenteric-artery dilation was impaired (P = 0.008 vs. control) and mean arterial blood pressure increased (109.5 ± 3.8 vs. 104.0 ± 4.7 mmHg, P = 0.002, ART vs. control) in ART compared with control mice. These alterations were associated with altered DNA methylation of the eNOS gene promoter (P < 0.001 vs. control) and decreased plasma nitric oxide concentration (10.1 ± 11.1 vs. 29.5 ± 8.0 μM) (P < 0.001 ART vs. control). Addition of melatonin (10(-6) M) to culture media prevented eNOS dysmethylation (P = 0.005, vs. ART + vehicle), normalized nitric oxide plasma concentration (23.1 ± 14.6 μM, P = 0.002 vs. ART + vehicle) and mesentery-artery responsiveness to acetylcholine (P < 0.008 vs. ART + vehicle), and prevented arterial hypertension (104.6 ± 3.4 mmHg, P < 0.003 vs. ART + vehicle). These findings provide proof of principle that modification of culture media prevents ART-induced vascular dysfunction. We speculate that this approach will also allow preventing ART-induced premature atherosclerosis in humans.
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Affiliation(s)
- Emrush Rexhaj
- Department of Cardiology and Clinical Research, University Hospital, Bern, Switzerland
| | - Agim Pireva
- Department of Cardiology and Clinical Research, University Hospital, Bern, Switzerland
| | - Ariane Paoloni-Giacobino
- Department of Genetic and Laboratory Medicine and Swiss Center for Applied Human Toxicology, Geneva University Hospital, Geneva, Switzerland
| | - Yves Allemann
- Department of Cardiology and Clinical Research, University Hospital, Bern, Switzerland
| | - David Cerny
- Department of Cardiology and Clinical Research, University Hospital, Bern, Switzerland
| | - Pierre Dessen
- Department of Internal Medicine, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland; and
| | - Claudio Sartori
- Department of Cardiology and Clinical Research, University Hospital, Bern, Switzerland; Department of Internal Medicine, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland; and
| | - Urs Scherrer
- Department of Cardiology and Clinical Research, University Hospital, Bern, Switzerland; Facultad de Ciencias, Departamento de Biología, Universidad de Tarapacá, Arica, Chile
| | - Stefano F Rimoldi
- Department of Cardiology and Clinical Research, University Hospital, Bern, Switzerland;
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Kang X, Jia L, Shen X. Manifestation of Hyperandrogenism in the Continuous Light Exposure-Induced PCOS Rat Model. BIOMED RESEARCH INTERNATIONAL 2015; 2015:943694. [PMID: 26064969 PMCID: PMC4433651 DOI: 10.1155/2015/943694] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Accepted: 11/25/2014] [Indexed: 12/13/2022]
Abstract
Polycystic ovary syndrome (PCOS) is a complex endocrine and metabolic disorder, and its pathogenesis has yet to be completely clarified. A fully convincing animal model has not been established for PCOS. In earlier studies, researchers have shown that the exposure of rats to continuous light can induce PCOS; nevertheless, hyperandrogenism, a key characteristic observed in human PCOS, has not been reported previously. In the present study, we found that (1) body weights decreased in female rats in a continuous light environment with both ovarian and uterine augmentation; (2) the estrous cycle in rats under continuous light environment was disordered, and polycystic ovary-like changes occurred, accompanied with fur loss and lethargy; and (3) serum testosterone levels in rats in a continuous light environment significantly increased. Our data suggest that continuous light can lead to the occurrence of PCOS in female rats without the need for drugs; this is a reasonable PCOS animal model that is more consistent with the natural disease state in humans; and poor sleep habits or negligence of sleep hygiene may be an important lifestyle factor in pathogenesis of PCOS.
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Affiliation(s)
- Xuezhi Kang
- College of Acupuncture and Moxibustion, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Shanghai Research Center for Acupuncture and Meridians, Shanghai 201203, China
| | - Lina Jia
- Department of Traditional Chinese Medicine, Huadong Hospital, Fudan University, Shanghai 200040, China
| | - Xueyong Shen
- College of Acupuncture and Moxibustion, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Shanghai Research Center for Acupuncture and Meridians, Shanghai 201203, China
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34
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Coelho LA, Peres R, Amaral FG, Reiter RJ, Cipolla-Neto J. Daily differential expression of melatonin-related genes and clock genes in rat cumulus-oocyte complex: changes after pinealectomy. J Pineal Res 2015; 58:490-9. [PMID: 25807895 DOI: 10.1111/jpi.12234] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 03/17/2015] [Indexed: 01/01/2023]
Abstract
This study investigated the maturational stage (immature and mature ovaries) differences of mRNA expression of melatonin-forming enzymes (Aanat and Asmt), melatonin membrane receptors (Mt1 and Mt2) and putative nuclear (Rorα) receptors, and clock genes (Clock, Bmal1, Per1, Per2, Cry1, Cry2) in cumulus-oocyte complexes (COC) from weaning Wistar rats. We also examined the effects of pinealectomy and of melatonin pharmacological replacement on the daily expression of these genes in COC. qRT-PCR analysis revealed that in oocytes, the mRNA expression of Asmt, Mt2, Clock, Bmal1, Per2, and Cry1 were higher (P < 0.05) in immature ovaries than in the mature ones. In cumulus cells, the same pattern of mRNA expression for Asmt, Aanat, Rorα, Clock, Per1, Cry1, and Cry2 genes was observed. In oocytes, pinealectomy altered the daily mRNA expression profiles of Asmt, Mt1, Mt2, Clock, Per1, Cry1, and Cry2 genes. In cumulus cells, removal of the pineal altered the mRNA expression profiles of Mt1, Mt2, Rorα, Aanat, Asmt, Clock, Bmal1, Per2, Cry1, and Cry2 genes. Melatonin treatment partially or completely re-established the daily mRNA expression profiles of most genes studied. The mRNA expression of melatonin-related genes and clock genes in rat COC varies with the maturational stage of the meiotic cellular cycle in addition to the hour of the day. This suggests that melatonin might act differentially in accordance with the maturational stage of cumulus/oocyte complex. In addition, it seems that circulating pineal melatonin is very important in the design of the daily profile of mRNA expression of COC clock genes and genes related to melatonin synthesis and action.
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Affiliation(s)
- L A Coelho
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering (FZEA), University of São Paulo (USP), Pirassununga, São Paulo, Brazil
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Lima GN, Maganhin CC, Simões RS, Baracat MCP, Sasso GRDS, Fuchs LFP, Simões MDJ, Baracat EC, Soares Júnior JM. Steroidogenesis-related gene expression in the rat ovary exposed to melatonin supplementation. Clinics (Sao Paulo) 2015; 70:144-51. [PMID: 25789524 PMCID: PMC4351306 DOI: 10.6061/clinics/2015(02)12] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2014] [Accepted: 11/19/2014] [Indexed: 12/03/2022] Open
Abstract
OBJECTIVE To analyze steroidogenesis-related gene expression in the rat ovary exposed to melatonin supplementation. METHODS Thirty-two virgin adult female rats were randomized to two groups as follows: the control group GI received vehicle and the experimental group GII received melatonin supplementation (10 µg/night per animal) for 60 consecutive days. After the treatment, animals were anesthetized and the collected ovaries were immediately placed in liquid nitrogen for complementary deoxyribonucleic acid microarray analyses. A GeneChip(®) Kit Rat Genome 230 2.0 Affymetrix Array was used for gene analysis and the experiment was repeated three times for each group. The results were normalized with the GeneChip(®) Operating Software program and confirmed through analysis with the secondary deoxyribonucleic acid-Chip Analyzer (dChip) software. The data were confirmed by real-time reverse transcription polymerase chain reaction analysis. Genes related to ovarian function were further confirmed by immunohistochemistry. RESULTS We found the upregulation of the type 9 adenylate cyclase and inhibin beta B genes and the downregulation of the cyclic adenosine monophosphate response element modulator and cytochrome P450 family 17a1 genes in the ovarian tissue of GII compared to those of the control group. CONCLUSION Our data suggest that melatonin supplementation decreases gene expression of cyclic adenosine monophosphate, which changes ovarian steroidogenesis.
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Affiliation(s)
- Gisele Negro Lima
- Department of Gynecology, Paulista School of Medicine at Federal University of São Paulo (EPM/UNIFESP), São Paulo, SP, Brazil
| | - Carla Cristina Maganhin
- Department of Gynecology, Paulista School of Medicine at Federal University of São Paulo (EPM/UNIFESP), São Paulo, SP, Brazil
| | - Ricardo Santos Simões
- Department of Obstetrics and Gynecology, Faculdade de Medicina da Universidade de São Paulo (FMUSP/USP), São Paulo, SP, Brazil
| | - Maria Cândida Pinheiro Baracat
- Department of Obstetrics and Gynecology, Faculdade de Medicina da Universidade de São Paulo (FMUSP/USP), São Paulo, SP, Brazil
| | - Gisela Rodrigues da Silva Sasso
- Department of Morphology and Genetics, (EPM/UNIFESP), Paulista School of Medicine at Federal University of São Paulo, São Paulo, SP, Brazil
| | - Luiz Fernando Portugal Fuchs
- Department of Obstetrics and Gynecology, Faculdade de Medicina da Universidade de São Paulo (FMUSP/USP), São Paulo, SP, Brazil
| | - Manuel de Jesus Simões
- Department of Morphology and Genetics, (EPM/UNIFESP), Paulista School of Medicine at Federal University of São Paulo, São Paulo, SP, Brazil
| | - Edmund Chada Baracat
- Department of Obstetrics and Gynecology, Faculdade de Medicina da Universidade de São Paulo (FMUSP/USP), São Paulo, SP, Brazil
| | - José Maria Soares Júnior
- Department of Obstetrics and Gynecology, Faculdade de Medicina da Universidade de São Paulo (FMUSP/USP), São Paulo, SP, Brazil
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Cruz MHC, Leal CLV, Cruz JF, Tan DX, Reiter RJ. Essential actions of melatonin in protecting the ovary from oxidative damage. Theriogenology 2014; 82:925-32. [PMID: 25107629 DOI: 10.1016/j.theriogenology.2014.07.011] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 07/02/2014] [Accepted: 07/05/2014] [Indexed: 01/03/2023]
Abstract
Free radicals and other reactive species are involved in normal ovarian physiology. However, they are also highly reactive with complex cellular molecules (proteins, lipids, and DNA) and alter their functions leading to oxidative stress. Oxidative damage may play a prominent role in the development of disorders that considerably influence female fertility. Melatonin, because of its amphiphilic nature that allows for crossing morphophysiological barriers, is an effective antioxidant for protecting macromolecules against oxidative stress caused by reactive species. The balance between reactive oxygen species and antioxidants within the follicle seems to be critical to the function of the oocyte and granulosa cells and evidence has accumulated showing that melatonin is involved in the protection of these cells. Melatonin appears to have varied functions at different stages of follicle development, oocyte maturation, and luteal stage. Melatonin concentration in the growing follicle may be an important factor in avoiding atresia, because melatonin in the follicular fluid reduces apoptosis of critical cells. Melatonin also has protective actions during oocyte maturation reducing intrafollicular oxidative damage. An association between melatonin concentrations in follicular fluid and oocyte quality has been reported; this would allow a preovulatory follicle to fully develop and provide a competent oocyte for fertilization. The functional role of reactive species and the cytoprotective properties of melatonin on the ovary from oxidative damage are summarized in this brief review.
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Affiliation(s)
- M H C Cruz
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, USP, Pirassununga, SP, Brazil.
| | - C L V Leal
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, USP, Pirassununga, SP, Brazil
| | - J F Cruz
- Department of Plant Science and Animal Science, Southwest Bahia State University, UESB, Vitória da Conquista, BA, Brazil
| | - D X Tan
- Department of Cellular and Structural Biology, UT Health Science Center at San Antonio, San Antonio, Texas, USA
| | - R J Reiter
- Department of Cellular and Structural Biology, UT Health Science Center at San Antonio, San Antonio, Texas, USA
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Maganhin CC, Simões RS, Fuchs LFP, Sasso GRS, Simões MJ, Baracat EC, Soares JM. Melatonin influences on steroidogenic gene expression in the ovary of pinealectomized rats. Fertil Steril 2014; 102:291-8. [PMID: 24825418 DOI: 10.1016/j.fertnstert.2014.04.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Revised: 03/18/2014] [Accepted: 04/08/2014] [Indexed: 10/25/2022]
Abstract
OBJECTIVE To analyze the expression of genes related to steroidogenesis in the ovary of pinealectomized rats. DESIGN Experimental research. SETTING University research laboratory. ANIMAL(S) Thirty female adult rats. INTERVENTION(S) Administration of vehicle (GI), pinealectomy with vehicle (GII), or pinealectomy with melatonin replacement (10 μg/night) for 60 consecutive days (GIII), then euthanasia after 2 months of treatment, ovary collection complementary DNA microarray analyses, confirmatory quantitative reverse-transcriptase polymerase chain reaction analyses, and immunohistochemical analyses for localizing steroidogenesis changes in the ovary. MAIN OUTCOME MEASURE(S) Biologic molecular study followed by immunohistochemical analysis. RESULT(S) The changes in the expression of CYP11A1, CYP17A1, and CYP19A1 after pinealectomy (GII) compared with control (GI) showed the Cyp17a1 expression level increased in the theca interna and interstitial cells in the GII rats compared with the other groups. CONCLUSION(S) Melatonin deprivation (pinealectomy) or administration may influence the ovarian CYP17A1 expression and steroidogenesis.
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Affiliation(s)
- Carla C Maganhin
- Department of Gynecology, Paulista School of Medicine, Federal University of São Paulo, São Paulo, Brazil.
| | - Ricardo S Simões
- Department of Obstetrics and Gynecology, São Paulo School of Medicine, University São Paulo, São Paulo, Brazil
| | - Luiz F P Fuchs
- Department of Obstetrics and Gynecology, São Paulo School of Medicine, University São Paulo, São Paulo, Brazil
| | - Gisela R S Sasso
- Department of Morphology and Genetics Paulista School of Medicine, Federal University of São Paulo, São Paulo, Brazil
| | - Manuel J Simões
- Department of Morphology and Genetics Paulista School of Medicine, Federal University of São Paulo, São Paulo, Brazil
| | - Edmund C Baracat
- Department of Obstetrics and Gynecology, São Paulo School of Medicine, University São Paulo, São Paulo, Brazil
| | - Jose M Soares
- Department of Obstetrics and Gynecology, São Paulo School of Medicine, University São Paulo, São Paulo, Brazil
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Manca ME, Manunta ML, Spezzigu A, Torres-Rovira L, Gonzalez-Bulnes A, Pasciu V, Piu P, Leoni GG, Succu S, Chesneau D, Naitana S, Berlinguer F. Melatonin deprival modifies follicular and corpus luteal growth dynamics in a sheep model. Reproduction 2014; 147:885-95. [PMID: 24570480 DOI: 10.1530/rep-13-0405] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
This study assessed the effect of melatonin deprival on ovarian status and function in sheep. Experimental procedures were carried out within two consecutive breeding seasons. Animals were divided into two groups: pinealectomised (n=6) and sham-operated (n=6). The completeness of the pineal gland removal was confirmed by the plasma concentration of melatonin. Ovarian status was monitored by ovarian ultrasonography for 1 year to study reproductive seasonality. Follicular and corpus luteal growth dynamics were assessed during an induced oestrous cycle. As the effects of melatonin on the ovary may also be mediated by its antioxidant properties, plasma Trolox equivalent antioxidant capacity (TEAC) was determined monthly for 1 year. Pinealectomy significantly extended the breeding season (310±24.7 vs 217.5±24.7 days in controls; P<0.05). Both pinealectomised and sham-operated ewes showed a well-defined wave-like pattern of follicle dynamics; however, melatonin deficiency caused fewer waves during the oestrous cycle (4.3±0.2 vs 5.2±0.2; P<0.05), because waves were 1 day longer when compared with the controls (7.2±0.3 vs 6.1±0.3; P<0.05). The mean area of the corpora lutea (105.4±5.9 vs 65.4±5.9 mm(2); P<0.05) and plasma progesterone levels (7.1±0.7 vs 4.9±0.6 ng/ml; P<0.05) were significantly higher in sham-operated ewes compared with pinealectomised ewes. In addition, TEAC values were significantly lower in pinealectomised ewes compared with control ones. These data suggest that melatonin, besides exerting its well-known role in the synchronisation of seasonal reproductive fluctuations, influences the growth pattern of the follicles and the steroidogenic capacity of the corpus luteum.
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Affiliation(s)
- Maria Elena Manca
- Department of Veterinary MedicineUniversity of Sassari, Via Vienna 2, 07100 Sassari, ItalyEmbryo SardegnaTechnology, Reproduction, and Fertility, 07034 Perfugas, Località Suiles (SS), ItalyDepartment of Animal ReproductionINIA, Avda. Puerta de Hierro s/n, 28040 Madrid, SpainInstitut National de la Recherche Agronomique (INRA)UMR85, F-37380 Nouzilly, FranceCNRSUMR 7247, Université François Rabelais de Tours, F-37041 Tours, France
| | - Maria Lucia Manunta
- Department of Veterinary MedicineUniversity of Sassari, Via Vienna 2, 07100 Sassari, ItalyEmbryo SardegnaTechnology, Reproduction, and Fertility, 07034 Perfugas, Località Suiles (SS), ItalyDepartment of Animal ReproductionINIA, Avda. Puerta de Hierro s/n, 28040 Madrid, SpainInstitut National de la Recherche Agronomique (INRA)UMR85, F-37380 Nouzilly, FranceCNRSUMR 7247, Université François Rabelais de Tours, F-37041 Tours, France
| | - Antonio Spezzigu
- Department of Veterinary MedicineUniversity of Sassari, Via Vienna 2, 07100 Sassari, ItalyEmbryo SardegnaTechnology, Reproduction, and Fertility, 07034 Perfugas, Località Suiles (SS), ItalyDepartment of Animal ReproductionINIA, Avda. Puerta de Hierro s/n, 28040 Madrid, SpainInstitut National de la Recherche Agronomique (INRA)UMR85, F-37380 Nouzilly, FranceCNRSUMR 7247, Université François Rabelais de Tours, F-37041 Tours, France
| | - Laura Torres-Rovira
- Department of Veterinary MedicineUniversity of Sassari, Via Vienna 2, 07100 Sassari, ItalyEmbryo SardegnaTechnology, Reproduction, and Fertility, 07034 Perfugas, Località Suiles (SS), ItalyDepartment of Animal ReproductionINIA, Avda. Puerta de Hierro s/n, 28040 Madrid, SpainInstitut National de la Recherche Agronomique (INRA)UMR85, F-37380 Nouzilly, FranceCNRSUMR 7247, Université François Rabelais de Tours, F-37041 Tours, France
| | - Antonio Gonzalez-Bulnes
- Department of Veterinary MedicineUniversity of Sassari, Via Vienna 2, 07100 Sassari, ItalyEmbryo SardegnaTechnology, Reproduction, and Fertility, 07034 Perfugas, Località Suiles (SS), ItalyDepartment of Animal ReproductionINIA, Avda. Puerta de Hierro s/n, 28040 Madrid, SpainInstitut National de la Recherche Agronomique (INRA)UMR85, F-37380 Nouzilly, FranceCNRSUMR 7247, Université François Rabelais de Tours, F-37041 Tours, France
| | - Valeria Pasciu
- Department of Veterinary MedicineUniversity of Sassari, Via Vienna 2, 07100 Sassari, ItalyEmbryo SardegnaTechnology, Reproduction, and Fertility, 07034 Perfugas, Località Suiles (SS), ItalyDepartment of Animal ReproductionINIA, Avda. Puerta de Hierro s/n, 28040 Madrid, SpainInstitut National de la Recherche Agronomique (INRA)UMR85, F-37380 Nouzilly, FranceCNRSUMR 7247, Université François Rabelais de Tours, F-37041 Tours, France
| | - Peter Piu
- Department of Veterinary MedicineUniversity of Sassari, Via Vienna 2, 07100 Sassari, ItalyEmbryo SardegnaTechnology, Reproduction, and Fertility, 07034 Perfugas, Località Suiles (SS), ItalyDepartment of Animal ReproductionINIA, Avda. Puerta de Hierro s/n, 28040 Madrid, SpainInstitut National de la Recherche Agronomique (INRA)UMR85, F-37380 Nouzilly, FranceCNRSUMR 7247, Université François Rabelais de Tours, F-37041 Tours, France
| | - Giovanni G Leoni
- Department of Veterinary MedicineUniversity of Sassari, Via Vienna 2, 07100 Sassari, ItalyEmbryo SardegnaTechnology, Reproduction, and Fertility, 07034 Perfugas, Località Suiles (SS), ItalyDepartment of Animal ReproductionINIA, Avda. Puerta de Hierro s/n, 28040 Madrid, SpainInstitut National de la Recherche Agronomique (INRA)UMR85, F-37380 Nouzilly, FranceCNRSUMR 7247, Université François Rabelais de Tours, F-37041 Tours, France
| | - Sara Succu
- Department of Veterinary MedicineUniversity of Sassari, Via Vienna 2, 07100 Sassari, ItalyEmbryo SardegnaTechnology, Reproduction, and Fertility, 07034 Perfugas, Località Suiles (SS), ItalyDepartment of Animal ReproductionINIA, Avda. Puerta de Hierro s/n, 28040 Madrid, SpainInstitut National de la Recherche Agronomique (INRA)UMR85, F-37380 Nouzilly, FranceCNRSUMR 7247, Université François Rabelais de Tours, F-37041 Tours, France
| | - Didier Chesneau
- Department of Veterinary MedicineUniversity of Sassari, Via Vienna 2, 07100 Sassari, ItalyEmbryo SardegnaTechnology, Reproduction, and Fertility, 07034 Perfugas, Località Suiles (SS), ItalyDepartment of Animal ReproductionINIA, Avda. Puerta de Hierro s/n, 28040 Madrid, SpainInstitut National de la Recherche Agronomique (INRA)UMR85, F-37380 Nouzilly, FranceCNRSUMR 7247, Université François Rabelais de Tours, F-37041 Tours, FranceDepartment of Veterinary MedicineUniversity of Sassari, Via Vienna 2, 07100 Sassari, ItalyEmbryo SardegnaTechnology, Reproduction, and Fertility, 07034 Perfugas, Località Suiles (SS), ItalyDepartment of Animal ReproductionINIA, Avda. Puerta de Hierro s/n, 28040 Madrid, SpainInstitut National de la Recherche Agronomique (INRA)UMR85, F-37380 Nouzilly, FranceCNRSUMR 7247, Université François Rabelais de Tours, F-37041 Tours, France
| | - Salvatore Naitana
- Department of Veterinary MedicineUniversity of Sassari, Via Vienna 2, 07100 Sassari, ItalyEmbryo SardegnaTechnology, Reproduction, and Fertility, 07034 Perfugas, Località Suiles (SS), ItalyDepartment of Animal ReproductionINIA, Avda. Puerta de Hierro s/n, 28040 Madrid, SpainInstitut National de la Recherche Agronomique (INRA)UMR85, F-37380 Nouzilly, FranceCNRSUMR 7247, Université François Rabelais de Tours, F-37041 Tours, France
| | - Fiammetta Berlinguer
- Department of Veterinary MedicineUniversity of Sassari, Via Vienna 2, 07100 Sassari, ItalyEmbryo SardegnaTechnology, Reproduction, and Fertility, 07034 Perfugas, Località Suiles (SS), ItalyDepartment of Animal ReproductionINIA, Avda. Puerta de Hierro s/n, 28040 Madrid, SpainInstitut National de la Recherche Agronomique (INRA)UMR85, F-37380 Nouzilly, FranceCNRSUMR 7247, Université François Rabelais de Tours, F-37041 Tours, France
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