1
|
Burke S. Hypoxia, NSAIDs, and autism: A biocultural analysis of stressors in gametogenesis. Am J Hum Biol 2024:e24042. [PMID: 38282542 DOI: 10.1002/ajhb.24042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 01/07/2024] [Accepted: 01/08/2024] [Indexed: 01/30/2024] Open
Abstract
Cultural and generational trends have increasingly favored "anti-inflammatory" action, innovating a new class of analgesic, non-steroidal anti-inflammatory drugs (NSAIDs) in the 20th century. The modern human body has been molded over evolutionary time and while acknowledging inflammation can be pathologically entwined, it also serves an important role in healthy folliculogenesis and ovulation, shaping cues that drive needed vascular change. This review argues that because of anti-inflammatory action, the cultural invention of NSAIDs represents a particular stressor on female reproductive-age bodies, interacting with natural, underlying variation and placing limits on healthy growth and development in the follicles, creating potential autism risk through hypoxia and mutagenic or epigenetic effects. Since testes are analogs to ovaries, the biological grounding extends naturally to spermatogenesis. This review suggests the introduction of over-the-counter NSAIDs in the 1980s failed to recognize the unique functioning of reproductive-age bodies, challenging the cyclical inflammation needed for healthy gamete development. NSAIDs are framed as one (notable) stressor in an anti-inflammatory era focused on taming the risks of inflammation in modern human life.
Collapse
Affiliation(s)
- Stacie Burke
- Department of Anthropology, University of Manitoba, Winnipeg, Manitoba, Canada
| |
Collapse
|
2
|
Hu L, Bai L, Qin R, Wang X, Zhou J, Yu C, Chen Y, Wang S, Zhao S, Chen L, Lu R. Optimizing FSH Concentration Modulation in the Short-Acting GnRH-a Long Protocol for IVF/ICSI: A Retrospective Study. Adv Ther 2024; 41:215-230. [PMID: 37884809 DOI: 10.1007/s12325-023-02702-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 09/29/2023] [Indexed: 10/28/2023]
Abstract
INTRODUCTION Exogenous gonadotropin (Gn) is given to regulate follicle-stimulating hormone (FSH) levels to achieve optimal ovarian response in in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI). The objective of this study was to analyze the optimal degree of change in FSH blood concentration with ovarian responsiveness in a short-acting gonadotropin-releasing hormone agonist (GnRH-a) long protocol for IVF/ICSI. METHODS This retrospective study was conducted at Changzhou Maternity and Child Health Hospital's Reproductive Center from May 2017 to May 2023. A total of 794 ovarian stimulation cycles for IVF/ICSI using the short-acting GnRH-a long protocol was included. Ovarian responsiveness was assessed based on the number of follicles > 14 mm on human chorionic gonadotropin (HCG) trigger day, refine-follicular output rate (Refine-FORT) and good quality embryos. Delta 1 referred to the change in FSH level between days 6-8 of gonadotropin usage and baseline FSH, while Delta 2 referred to the change in FSH level between HCG trigger day and days 6-8 of gonadotropin usage. Simple and multiple linear regression analysis were performed to adjust for confounding factors. RESULTS The number of follicles > 14 mm on HCG trigger day was found to be the most suitable indicator for evaluating ovarian responsiveness compared to the number of follicles > 16 mm and the number of retrieved oocytes. When Delta 1 ranged from 1.94 to 3.37, the number of follicles > 14 mm on HCG trigger day was the highest. When Delta 1 ranged from 3.37 to 5.90, the Refine-FORT was the highest. However, when Delta 1 exceeded 5.90, the number of follicles > 14 mm on HCG trigger day, Refine-FORT and good quality embryo all significantly decreased. On the other hand, when Delta 2 was ≤ - 1.58, the number of follicles > 14 mm on HCG trigger day and the Refine-FORT were both the highest. CONCLUSION This study identifies optimal Delta 1 and Delta 2 ranges for effective ovarian responsiveness in a short-acting GnRH-a long protocol for IVF/ICSI and introduces the novel measure of the number of follicles > 14 mm on HCG trigger day. The optimal range for Delta 1 was 1.94 to 3.37, and Delta 2 should be < - 1.58 for achieving a higher number and quality of oocytes.
Collapse
Affiliation(s)
- Lingmin Hu
- Department of Reproduction, Changzhou Maternity and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213000, Jiangsu, China
| | - Lijing Bai
- Department of Reproduction, Changzhou Maternity and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213000, Jiangsu, China
| | - Rui Qin
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, China
- Scientific Research and Education Department, Changzhou Maternity and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213000, Jiangsu, China
| | - Xiaoyu Wang
- Department of Reproduction, Changzhou Maternity and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213000, Jiangsu, China
| | - Jing Zhou
- Department of Reproduction, Changzhou Maternity and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213000, Jiangsu, China
| | - Chunmei Yu
- Department of Reproduction, Changzhou Maternity and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213000, Jiangsu, China
| | - Yang Chen
- Department of Reproduction, Changzhou Maternity and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213000, Jiangsu, China
| | - Shuxian Wang
- Department of Reproduction, Changzhou Maternity and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213000, Jiangsu, China
| | - Shenyu Zhao
- Department of Neurology, Changzhou Third People's Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213000, Jiangsu, China
| | - Li Chen
- Department of Reproduction, Changzhou Maternity and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213000, Jiangsu, China.
| | - Renjie Lu
- Changzhou Third People's Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213000, Jiangsu, China.
| |
Collapse
|
3
|
Jiang Y, Gao X, Liu Y, Yan X, Shi H, Zhao R, Chen ZJ, Gao F, Zhao H, Zhao S. Cellular atlases of ovarian microenvironment alterations by diet and genetically-induced obesity. SCIENCE CHINA. LIFE SCIENCES 2024; 67:51-66. [PMID: 37721638 DOI: 10.1007/s11427-023-2360-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 05/09/2023] [Indexed: 09/19/2023]
Abstract
Obesity, which can arise from genetic or environmental factors, has been shown to cause serious damages to the reproductive system. The ovary, as one of the primary regulators of female fertility, is a complex organ comprised of heterogeneous cell types that work together to maintain a normal ovarian microenvironment (OME). Despite its importance, the effect of obesity on the entire ovary remains poorly documented. In this study, we performed ovary single-cell and nanoscale spatial RNA sequencing to investigate how the OME changed under different kinds of obesity, including high-fat diet (HFD) induced obesity and Leptin ablation induced obesity (OB). Our results demonstrate that OB, but not HFD, dramatically altered the proportion of ovarian granulosa cells, theca-interstitial cells, luteal cells, and endothelial cells. Furthermore, based on the spatial dynamics of follicular development, we defined four subpopulations of granulosa cell and found that obesity drastically disrupted the differentiation of mural granulosa cells from small to large antral follicles. Functionally, HFD enhanced follicle-stimulating hormone (FSH) sensitivity and hormone conversion, while OB caused decreased sensitivity, inadequate steroid hormone conversion, and impaired follicular development. These differences can be explained by the differential expression pattern of the transcription factor Foxo1. Overall, our study provides a powerful and high-resolution resource for profiling obesity-induced OME and offers insights into the diverse effects of obesity on female reproductive disorders.
Collapse
Affiliation(s)
- Yonghui Jiang
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, China
- National Research Center of Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China
- The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215000, China
| | - Xueying Gao
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, China
- National Research Center of Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China
- Center for reproductive medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
- Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, 200127, China
| | - Yue Liu
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, China
- National Research Center of Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China
| | - Xueqi Yan
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, China
- National Research Center of Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China
| | - Huangcong Shi
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, China
- National Research Center of Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China
| | - Rusong Zhao
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, China
- National Research Center of Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China
- The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215000, China
| | - Zi-Jiang Chen
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, China.
- Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No.2021RU001), Jinan, 250012, China.
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China.
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, China.
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, China.
- Center for reproductive medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China.
- Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, 200127, China.
| | - Fei Gao
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Science, Beijing, 100101, China.
| | - Han Zhao
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, China.
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China.
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, China.
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, China.
- National Research Center of Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China.
| | - Shigang Zhao
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, China.
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China.
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, China.
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, China.
- National Research Center of Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China.
| |
Collapse
|
4
|
Ma Y, Liu Y, Chen W, Li F, Guo R, Ji R, Chen J. Carbon quantum dot-induced developmental toxicity in Daphnia magna involves disturbance of symbiotic microorganisms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166825. [PMID: 37673252 DOI: 10.1016/j.scitotenv.2023.166825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 09/01/2023] [Accepted: 09/02/2023] [Indexed: 09/08/2023]
Abstract
With the increasing synthesis and application of carbon quantum dots (CQDs), their prevalence as pollution in water environments has increased. However, the toxic effects of CQDs on aquatic organisms are unclear, and their environmental safety must be evaluated. Herein, Daphnia magna was used as a model organism to explore the developmental toxicity of CQDs under a full life-cycle exposure. It was found that the feeding rate and offing number of D. magna decreased with increasing CQD concentration, and the body length of D. magna showed a trend of first increasing and then decreasing. These results indicated that long-term exposure to CQDs has evident toxic effects on D. magna development. Symbiosis analysis showed that the composition of the symbiotic microbial community of D. magna was disturbed by CQDs. The abundance of microorganisms involved in the immune response of D. magna such as Rhodobacter, decreased; those involved in the inflammation such as Gemmobacter, increased; and those involved in the nitrogen cycle, such as Hydrogenophaga and Paracoccus, decreased. When D. magna was subjected to environmental pressure, host-microflora interactive immune regulation was induced. The abundance of probiotics in D. magna, such as Rhodococcus, increased in response to environmental pressure. The results of KEGG function prediction showed that the abundance of symbiotic microorganisms involved in energy absorption and metabolism was affected by CQDs. In addition, the correlation analysis showed that there was a correlation between the changes in the symbiotic microbial community and the damage to D. magna after exposure to CQDs. Thus, it is appealed that as a potential environmental pollutant, CQDs have aquatic environmental risks, and their safe application deserves attention.
Collapse
Affiliation(s)
- Yunfeng Ma
- School of Engineering, China Pharmaceutical University, Nanjing 210009, China
| | - Yanhua Liu
- School of Engineering, China Pharmaceutical University, Nanjing 210009, China
| | - Wenling Chen
- School of Engineering, China Pharmaceutical University, Nanjing 210009, China
| | - Fei Li
- School of Engineering, China Pharmaceutical University, Nanjing 210009, China
| | - Ruixin Guo
- School of Engineering, China Pharmaceutical University, Nanjing 210009, China
| | - Rong Ji
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Jianqiu Chen
- School of Engineering, China Pharmaceutical University, Nanjing 210009, China.
| |
Collapse
|
5
|
Alfradique VAP, Netto DLS, Alves SVP, Machado AF, Novaes CM, Penitente-Filho JM, Machado-Neves M, Lopes MS, Guimarães SEF. The impact of FSH stimulation and age on the ovarian and uterine traits and histomorphometry of prepubertal gilts. Domest Anim Endocrinol 2023; 83:106786. [PMID: 36848729 DOI: 10.1016/j.domaniend.2023.106786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 01/14/2023] [Accepted: 01/19/2023] [Indexed: 01/28/2023]
Abstract
This study investigated the effect of age and follicle stimulating hormone (FSH) treatment on the estradiol (E2) plasma concentration, ovarian follicle development, endometrial histomorphometry, and ultrasonographic parameters of the ovaries and uterus in prepubertal gilts. Thirty-five prepubertal gilts were grouped according to age (140 or 160 d), and within each age, gilts were allotted to receive 100 mg of FSH (treated; G140 + FSH [n = 10] and G160 + FSH [n = 7]) or saline solution (control; G140 + control [n = 10] and G160 + control [n = 8]). The total dose of FSH was divided into 6 similar doses administered every 8 h (days 0-2). Before and after FSH treatment, blood sample was collected, and transabdominal scanning of the ovaries and uterus was performed. Twenty-four hours after the last FSH injection, the gilts were slaughtered and their ovaries and uterus were processed for histological and histomorphometric analysis. The histomorphometric parameters of the uterus differed (P < 0.05) between prepubertal gilts at 160 d and 140 d of age. Moreover, changes (P < 0.05) in uterine and ovarian ultrasound images occurred between 140 and 160 d of age. Age and FSH treatment did not affect (P > 0.05) E2 plasma concentrations. Follicle stimulating hormone treatment did not affect (P > 0.05) the early stage of folliculogenesis in the prepubertal gilts; however, the number of early atretic follicles decreased (P < 0.05) after the FSH treatment. Follicle stimulating hormone administration increased (P < 0.05) the number of medium follicles and decreased (P < 0.05) the number of small follicles in 140 and 160 d old gilts. In the endometrium, luminal/glandular epithelium height and glandular diameter increased (P < 0.05) after FSH treatment. Thus, injections of 100 mg of FSH stimulate the endometrium epithelium and induce follicular growth to a medium follicle size without affecting the preantral stages in prepubertal gilts; also, the uterine macroscopic morphometry does not change from 140 to 160 d of age.
Collapse
Affiliation(s)
- V A P Alfradique
- Departamento de Veterinária, Universidade Federal de Viçosa, Av Peter Henry Rolfs, Campus Universitário, CEP 36570-900, Viçosa, MG, Brazil.
| | - D L Souza Netto
- Departamento de Veterinária, Universidade Federal de Viçosa, Av Peter Henry Rolfs, Campus Universitário, CEP 36570-900, Viçosa, MG, Brazil
| | - S V P Alves
- Departamento de Veterinária, Universidade Federal de Viçosa, Av Peter Henry Rolfs, Campus Universitário, CEP 36570-900, Viçosa, MG, Brazil
| | - A F Machado
- Departamento de Zootecnia, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, Campus Universitário, CEP 36570-900, Viçosa, MG, Brazil
| | - C M Novaes
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, Campus Universitário, CEP 36570-900, Viçosa, MG, Brazil
| | - J M Penitente-Filho
- Departamento de Veterinária, Universidade Federal de Viçosa, Av Peter Henry Rolfs, Campus Universitário, CEP 36570-900, Viçosa, MG, Brazil
| | - M Machado-Neves
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, Campus Universitário, CEP 36570-900, Viçosa, MG, Brazil
| | - M S Lopes
- Topigs Norsvin - Brasil, Curitiba, PR, Brazil
| | - S E F Guimarães
- Departamento de Zootecnia, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, Campus Universitário, CEP 36570-900, Viçosa, MG, Brazil.
| |
Collapse
|
6
|
Tekin S, Akgün EE, Ömür AD. A neuroscience-based approach to the assessment of sexual behavior in animals. Front Vet Sci 2023; 10:1136332. [PMID: 37082135 PMCID: PMC10110897 DOI: 10.3389/fvets.2023.1136332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 03/20/2023] [Indexed: 04/22/2023] Open
Abstract
Sexual behavior in animals is important in ensuring the continuity of the generation. These behaviors differ in animal species. Sexual behaviors are shaped under the control of the reproductive system. Physiological stimuli produced by the reproductive system find their counterparts in the organism as reproductive activity. Reproductive activity display a critical role by transferring on the genetic heritage of organisms to the next generations. This activity, which is built on delicate balances, is associated with many systems in the organism. Nervous system, hormonal system, and circulatory system are the main ones. The regular formation of the reproductive activity in species is due to the effect of various factors. In domestic mammals, the reproductive activity is regulated by hormones secreted from brain and endocrine glands. Many hormones have duties in terms of the sustainability of reproductive activity. GnRH is the main hormone responsible for initiating this reproductive activity. Gonadotropin-releasing hormone (GnRH), which is a small molecule peptide from certain nerve cells in the nucleus infundibularis region of the hypothalamus and consists of different amino acids, is secreted under the influence of smell, temperature, light, and physical stimulation. Besides, GnRH release is controlled by various neurotransmitters (adrenaline, noradrenaline, dopamine, acetylcholine, serotonin). On the other hand, various genetic factors in secretory glands, gonadal cells, reproductive tissues can lead to significant changes on reproductive activity through specific molecular pathways and mechanisms.
Collapse
Affiliation(s)
- Samet Tekin
- Department of Physiology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Türkiye
| | - Elif Ece Akgün
- Department of Histology-Embryology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Türkiye
- *Correspondence: Elif Ece Akgün
| | - Ali Doğan Ömür
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Türkiye
- Ali Doğan Ömür
| |
Collapse
|
7
|
Transcriptomic Profiling Revealed Signaling Pathways Associated with the Spawning of Female Zebrafish under Cold Stress. Int J Mol Sci 2022; 23:ijms23147494. [PMID: 35886843 PMCID: PMC9320639 DOI: 10.3390/ijms23147494] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/04/2022] [Accepted: 07/04/2022] [Indexed: 12/13/2022] Open
Abstract
As one of the critical abiotic factors, temperature controls fish development and reproduction. However, the effects of low temperature on the transcriptional regulation of zebrafish reproduction remain largely unclear. In this study, the fecundity of zebrafish was examined after exposure to cold temperatures at 19.5 °C, 19 °C, 18.5 °C, or 18 °C. The temperature at 19 °C showed no significant influence on the fecundity of zebrafish, but temperature at 18.5 °C or 18 °C significantly blocked the spawning of females, suggesting the existence of a low temperature critical point for the spawning of zebrafish females. Based on these observations, the brains of anesthetized fish under cold stress at different cold temperatures were collected for high-throughput RNA-seq assays. Key genes, hub pathways and important biological processes responding to cold temperatures during the spawning of zebrafish were identified through bioinformatic analysis. The number of down-regulated and up-regulated genes during the temperature reduction from egg-spawning temperatures at 19.5 °C and 19 °C to non-spawning temperatures at 18.5 °C and 18 °C were 2588 and 2527 (fold change ≥ 1.5 and p-value ≤ 0.01), respectively. Venn analysis was performed to identify up- and down-regulated key genes. KEGG enrichment analysis indicated that the hub pathways overrepresented among down-regulated key genes included the GnRH signaling pathway, vascular smooth muscle contraction, C-type lectin receptor signaling pathway, phosphatidylinositol signaling system and insulin signaling pathway. GO enrichment analysis of down-regulated key genes revealed the most important biological processes inhibited under non-spawning temperatures at 18.5 °C and 18 °C were photoreceptor cell outer segment organization, circadian regulation of gene expression and photoreceptor cell maintenance. Furthermore, 99 hormone-related genes were found in the brain tissues of non-spawning and spawning groups, and GnRH signaling pathway and insulin signaling pathway were enriched from down-regulated genes related to hormones at 18.5 °C and 18 °C. Thus, these findings uncovered crucial hormone-related genes and signaling pathways controlling the spawning of female zebrafish under cold stress.
Collapse
|
8
|
Hossein Rashidi B, Sayyari K, Heshmat R, Amanpour S, Shahrokh Tehraninejad E, Masoumi M, Rezaei F. Comparing a biosimilar follitropin alfa (Cinnal-fⓇ) with Gonal-fⓇ in women undergoing ovarian stimulation: An RCT. Int J Reprod Biomed 2022; 19:1015-1024. [PMID: 34977459 PMCID: PMC8717078 DOI: 10.18502/ijrm.v19i11.9917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 10/06/2020] [Accepted: 12/16/2020] [Indexed: 11/24/2022] Open
Abstract
Background Advances in recombinant DNA technology led to the development of recombinant follitropin alfa. Recombinant human follicle-stimulating hormone products are used to stimulate follicular maturation. Objective To compare the efficacy and safety of a biosimilar-candidate recombinant human follicle-stimulating hormone (Cinnal-fⓇ; CinnaGen, Iran) with the reference product (Gonal-fⓇ; Merck Serono, Germany) in women undergoing ovarian stimulation for intracytoplasmic sperm injection (ICSI). Materials and Methods In this randomized controlled trial, a total sample size of 200 women (age < 35 yr, candidate for ICSI) was calculated. Participants began a pituitary downregulation protocol with buserelin. They received 150 IU daily of either Cinnal-fⓇ or Gonal-fⓇ from the second day of their cycle. The primary outcome of the study was the percentage of metaphase II (MII) oocytes. The secondary outcomes included the number and quality of oocytes retrieved, duration of stimulation, fertilization rate, embryo quality, the number of clinical and ongoing pregnancies, and the incidence of ovarian hyperstimulation syndrome (as an important safety marker). Results A total of 208 women were enrolled, of whom, 200 completed the study period. Ovarian stimulation with Cinnal-fⓇ resulted in a comparable percentage of MII oocytes as with Gonal-fⓇ (78.64% vs 80.02%, respectively; p = 0.81). No statistically significant difference was seen in the secondary outcomes between the groups. Conclusion Cinnal-fⓇ proved non-inferior to Gonal-fⓇ, based on the percentage of MII oocytes in women aged < 35 yr undergoing ICSI. Our findings confirm that the efficacy and safety profiles of Cinnal-fⓇ and Gonal-fⓇ are similar.
Collapse
Affiliation(s)
- Batool Hossein Rashidi
- Vali-e-Asr Reproductive Health Research Centre, Tehran University of Medical Sciences, Tehran, Iran
| | - Khashayar Sayyari
- Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Ramin Heshmat
- Chronic Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeid Amanpour
- Vali-e-Asr Reproductive Health Research Centre, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Masoumeh Masoumi
- Vali-e-Asr Reproductive Health Research Centre, Tehran University of Medical Sciences, Tehran, Iran
| | - Farhang Rezaei
- Medical Department, Orchid Pharmed Company, Tehran, Iran
| |
Collapse
|
9
|
Ma H, Ishida K, Xu C, Takahashi K, Li Y, Zhang C, Kang Q, Jia Y, Hu W, Matsumaru D, Nakanishi T, Hu J. Triphenyl phosphate delayed pubertal timing and induced decline of ovarian reserve in mice as an estrogen receptor antagonist. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 290:118096. [PMID: 34488164 DOI: 10.1016/j.envpol.2021.118096] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/29/2021] [Accepted: 09/01/2021] [Indexed: 06/13/2023]
Abstract
Although concerns have been raised about the adverse effects of triphenyl phosphate (TPhP) on female fertility, its risk to ovarian functioning remains unknown. In this study, female C57BL/6 mice at postnatal day 21 were exposed on a daily basis to TPhP dose of 2, 10, and 50 mg/kg for 40 days. A significant delay in pubertal timing was observed in the mice exposed to 50 mg/kg of TPhP. An estrogen-responsive reporter transgenic mice assay demonstrated that TPhP significantly downregulated the estrogen receptor (ER) signaling by 45.1% in the whole body in the 50 mg/kg group, and by 14.7-43.7% in the uterus for all exposure groups compared with the control. This strong antagonistic activity of TPhP toward ER explained the delay in pubertal timing. A significant reduction in the number of follicles in all stages was observed in mice after being exposed to TPhP for 40 days at concentrations of 10 and 50 mg/kg, resulting in a decline of the ovarian reserve. The elevation of the follicle-stimulating hormone concentration may have contributed to this phenomenon, as controlled by the antagonistic activity of TPhP toward ER in the brain. The toxic effects of TPhP on ovarian functioning highlight this chemical as a potential risk factor for female fertility.
Collapse
Affiliation(s)
- Haojia Ma
- MOE Laboratory for Earth Surface Process, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Keishi Ishida
- Laboratory of Hygienic Chemistry and Molecular Toxicology, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, Gifu, 501-1196, Japan
| | - Chenke Xu
- MOE Laboratory for Earth Surface Process, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Kyosuke Takahashi
- Laboratory of Hygienic Chemistry and Molecular Toxicology, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, Gifu, 501-1196, Japan
| | - Yu Li
- MOE Laboratory for Earth Surface Process, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Chenhao Zhang
- MOE Laboratory for Earth Surface Process, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Qiyue Kang
- MOE Laboratory for Earth Surface Process, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Yingting Jia
- MOE Laboratory for Earth Surface Process, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Wenxin Hu
- MOE Laboratory for Earth Surface Process, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Daisuke Matsumaru
- Laboratory of Hygienic Chemistry and Molecular Toxicology, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, Gifu, 501-1196, Japan
| | - Tsuyoshi Nakanishi
- Laboratory of Hygienic Chemistry and Molecular Toxicology, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, Gifu, 501-1196, Japan
| | - Jianying Hu
- MOE Laboratory for Earth Surface Process, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China.
| |
Collapse
|
10
|
Chen L, Zhang W, Huang R, Miao X, Li J, Yu D, Li Y, Hsu W, Qiu M, Zhang Z, Li F. The function of Wls in ovarian development. Mol Cell Endocrinol 2021; 522:111142. [PMID: 33359762 DOI: 10.1016/j.mce.2020.111142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 12/17/2020] [Accepted: 12/20/2020] [Indexed: 11/26/2022]
Abstract
WNT ligand transporter Wls is essential for the WNT dependent developmental and pathogenic processes. The spatiotemporal expression pattern of Wls was investigated in this study. Immature female mice (21-22 days old) were treated with 5 IU, pregnant mare's serum gonadotrophin (PMSG) to stimulate follicular development, followed 48 h later by injection with 5 IU, human chorionic gonadotrophin (hCG) to induce ovulation. The expression of Wls was stimulated in granulosa cells and the forming corpus luteum after hCG administration. To study the function of Wls, the Amhr2tm3(cre)Bhr strain was used to target deletion of Wls in granulosa cells. The deletion of Wls caused a significant decrease in the fertility of WlsAmhr2-Cre female mice. In female WlsAmhr2-Cre mice, decreased ovarian size and number of antral follicles were found. The number of corpus luteum in immature PMSG/hCG primed WlsAmhr2-Cre mice was much less than that in the control group. Compared with control animals, WlsAmhr2-Cre mice have lower serum progesterone levels. RNA sequencing was used to identify genes regulated by Wls after hCG treatment. Several genes known to be critical for follicle development and steroidogenesis were significantly down-regulated, such as Fshr, Lhcgr, Sfrp4, Inhba, Cyp17a1, Hsd3b1, and Hsd17b7. The expression of WNT signaling downstream target genes, Bmp2 and Cyp19a1, also decreased significantly in WlsAmhr2-Cre ovary. In summary, the findings of this study suggest that Wls is critical for female fertility and luteinization.
Collapse
Affiliation(s)
- Luyi Chen
- Zhejiang Key Laboratory of Organ Development and Regeneration, Institute of Developmental and Regenerative Biology, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036, People's Republic of China
| | - Wei Zhang
- Zhejiang Key Laboratory of Organ Development and Regeneration, Institute of Developmental and Regenerative Biology, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036, People's Republic of China
| | - Ruiqi Huang
- Zhejiang Key Laboratory of Organ Development and Regeneration, Institute of Developmental and Regenerative Biology, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036, People's Republic of China
| | - Xiaoping Miao
- Zhejiang Key Laboratory of Organ Development and Regeneration, Institute of Developmental and Regenerative Biology, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036, People's Republic of China
| | - Jianying Li
- Zhejiang Key Laboratory of Organ Development and Regeneration, Institute of Developmental and Regenerative Biology, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036, People's Republic of China
| | - Dongliang Yu
- Plant Genomics & Molecular Improvement of Colored Fiber Lab, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, People's Republic of China
| | - Yan Li
- Zhejiang Key Laboratory of Organ Development and Regeneration, Institute of Developmental and Regenerative Biology, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036, People's Republic of China
| | - Wei Hsu
- Department of Biomedical Genetics, Center for Oral Biology, James P Wilmot Cancer Center, University of Rochester Medical Center, Rochester, NY, USA
| | - Mengsheng Qiu
- Zhejiang Key Laboratory of Organ Development and Regeneration, Institute of Developmental and Regenerative Biology, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036, People's Republic of China
| | - Zunyi Zhang
- Zhejiang Key Laboratory of Organ Development and Regeneration, Institute of Developmental and Regenerative Biology, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036, People's Republic of China
| | - Feixue Li
- Zhejiang Key Laboratory of Organ Development and Regeneration, Institute of Developmental and Regenerative Biology, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036, People's Republic of China.
| |
Collapse
|
11
|
Hoque SAM, Umehara T, Kawai T, Shimada M. Adverse effect of superoxide-induced mitochondrial damage in granulosa cells on follicular development in mouse ovaries. Free Radic Biol Med 2021; 163:344-355. [PMID: 33385538 DOI: 10.1016/j.freeradbiomed.2020.12.434] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/13/2020] [Accepted: 12/16/2020] [Indexed: 12/12/2022]
Abstract
High mitochondrial oxidative phosphorylation (mt-OXPHOS) levels are required to supply the ATP necessary for follicle-stimulating hormone (FSH)-induced granulosa cell proliferation during the follicular development process. Consequently, excessive reactive oxygen species (ROS) might be generated and have an adverse effect on follicular health. This study aimed to elucidate the negative effects of ROS on mitochondrial functions in FSH-stimulated granulosa cells during the follicular development process and to investigate whether pyrroloquinoline quinone (PQQ) treatment could accelerate this process by ameliorating the adverse effects. To do this, both in vitro and in vivo experiments were performed with granulosa cells from superovulated immature (3-week-old) mice that were pretreated with or without PQQ, and a natural mating study was also performed. The ROS level in FSH-/eCG-stimulated granulosa cells was significantly increased. Moreover, high oxidative stress and mtDNA damage levels were evident in the granulosa cells. PQQ treatment not only reduced the ROS and oxidative stress levels but also ameliorated mtDNA damage, accelerated FSH-/eCG-induced ATP production, and increased the mitochondrial membrane potential and the expression levels of mitochondrial genes (Nd1, Cytb, Cox1, ATPase6) and the mt-ND1 protein. Accordingly, the proliferation and viability of granulosa cells, numbers of healthy preovulatory follicles and ovulated oocytes and serum estrogen level were significantly improved, while the apoptosis of granulosa cells was reduced. However, PQQ treatment did not change the fertility parameters in mature mice with natural cycles but did significantly increased the number of offspring born per delivery. These results revealed that ROS-associated damage in FSH-stimulated granulosa cells adversely affects their physiology and follicular health during the follicular development process. Treatment with PQQ is a beneficial tool to increase both the number of ovulated oocytes and pups per delivery.
Collapse
Affiliation(s)
- S A Masudul Hoque
- Laboratory of Reproductive Endocrinology, Graduate School of Biosphere Science, Hiroshima University, Hiroshima, Japan; Department of Animal Breeding and Genetics, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh
| | - Takashi Umehara
- Laboratory of Reproductive Biology, Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan
| | - Tomoko Kawai
- Laboratory of Reproductive Biology, Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan
| | - Masayuki Shimada
- Laboratory of Reproductive Endocrinology, Graduate School of Biosphere Science, Hiroshima University, Hiroshima, Japan; Laboratory of Reproductive Biology, Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan.
| |
Collapse
|
12
|
Lawrenz B, Coughlan C, Melado L, Digma S, Sibal J, Jean A, Fatemi HM. Step-Down of FSH- Dosage During Ovarian Stimulation - Basic Lessons to Be Learnt From a Randomized Controlled Trial. Front Endocrinol (Lausanne) 2021; 12:661707. [PMID: 33927696 PMCID: PMC8078176 DOI: 10.3389/fendo.2021.661707] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 03/22/2021] [Indexed: 11/24/2022] Open
Abstract
A rise in serum progesterone in the late follicular phase is a well described adverse effect of ovarian stimulation for IVF/ICSI. Previous data suggest, that enhanced gonadotropin stimulation causes progesterone elevation and the incidence of premature progesterone elevation can be reduced by declining gonadotropin dosages. This randomized controlled trial (RCT) aimed to achieve a significant reduction of the progesterone level on the day of final oocyte maturation by a daily reduction of 12.5 IU rec-FSH from a follicle size of 14 mm in a GnRH-antagonist protocol. A total of 127 patients had been recruited (Control group (CG): 62 patients; Study group (SG): 65 patients). Due to drop out, data from 108 patients (CG: 55 patients; SG: 53 patients) were included into the analysis. Patients' basic parameters, gonadotropin (Gn)-starting dose, total Gn-stimulation dosage, the number of retrieved and mature oocytes as well as in the hormonal parameters on the day of trigger (DoT) were not statistically significantly different. However, through stepwise Gn-reduction of 12.5 IU/day in the SG, there was a statistically highly significant difference in the Gn-stimulation dosage on the day of trigger (p < 0.0001) and statistically significant associations for the DoT-P4-levels with the DoT-FSH-levels for both groups (CG: p = 0.001; SG: p = 0.0045). The herein described significant associations between DoT-P4-levels and DoT-FSH-levels confirm the theory that enhanced FSH stimulation is the primary source of progesterone elevation on the day of final oocyte maturation in stimulated IVF/ICSI cycles. Given the pathophysiologic mechanism of progesterone elevation during ovarian stimulation, the use of an increased FSH step-down dosage should be studied in future RCTs, despite the fact that a step-down approach of daily 12.5 IU rec-FSH did not achieve a significantly reduced progesterone level on the DoT. Clinical Trial Registration: clinicaltrials.gov, identifier NCT03356964.
Collapse
Affiliation(s)
- Barbara Lawrenz
- In-Vitro-Fertilisation (IVF) Department, ART Fertility Clinics, Abu Dhabi, United Arab Emirates
- Obstetrical Department, Women’s University Hospital Tuebingen, Tuebingen, Germany
- *Correspondence: Barbara Lawrenz,
| | - Carol Coughlan
- In-Vitro-Fertilisation (IVF) Department, ART Fertility Clinics, Abu Dhabi, United Arab Emirates
| | - Laura Melado
- In-Vitro-Fertilisation (IVF) Department, ART Fertility Clinics, Abu Dhabi, United Arab Emirates
| | - Shieryl Digma
- In-Vitro-Fertilisation (IVF) Department, ART Fertility Clinics, Abu Dhabi, United Arab Emirates
| | - Junard Sibal
- Clinical Laboratory, ART Fertility Clinics, Abu Dhabi, United Arab Emirates
| | - Alliza Jean
- Clinical Laboratory, ART Fertility Clinics, Abu Dhabi, United Arab Emirates
| | - Human M. Fatemi
- In-Vitro-Fertilisation (IVF) Department, ART Fertility Clinics, Abu Dhabi, United Arab Emirates
| |
Collapse
|
13
|
Zhai QY, Wang JJ, Tian Y, Liu X, Song Z. Review of psychological stress on oocyte and early embryonic development in female mice. Reprod Biol Endocrinol 2020; 18:101. [PMID: 33050936 PMCID: PMC7552561 DOI: 10.1186/s12958-020-00657-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 10/07/2020] [Indexed: 12/22/2022] Open
Abstract
Psychological stress can cause adverse health effects in animals and humans. Accumulating evidence suggests that psychological stress in female mice is associated with ovarian developmental abnormalities accompanied by follicle and oocyte defects. Oocyte and early embryonic development are impaired in mice facing psychological stress, likely resulting from hormone signalling disorders, reactive oxygen species (ROS) accumulation and alterations in epigenetic modifications, which are primarily mediated by the hypothalamic-pituitary-adrenal (HPA) and hypothalamic-pituitary-ovarian (HPO) axes. The present evidence suggests that psychological stress is increasingly becoming the most common causative factor for female subfertility. Here, we review recent progress on the impact of psychological stress on female reproduction, particularly for oocyte and early embryonic development in female mice. This review highlights the connection between psychological stress and reproductive health and provides novel insight on human subfertility.
Collapse
Affiliation(s)
- Qiu-Yue Zhai
- grid.410645.20000 0001 0455 0905School of Basic Medicine, Qingdao University, Qingdao, 266071 China
- grid.410645.20000 0001 0455 0905Qingdao Medical College, Qingdao University, Qingdao, 266071 China
| | - Jun-Jie Wang
- grid.412608.90000 0000 9526 6338College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, 266109 China
| | - Yu Tian
- grid.412608.90000 0000 9526 6338College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, 266109 China
| | - Xiaofang Liu
- grid.43308.3c0000 0000 9413 3760Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071 China
| | - Zhenhua Song
- grid.410645.20000 0001 0455 0905School of Basic Medicine, Qingdao University, Qingdao, 266071 China
- grid.410645.20000 0001 0455 0905Qingdao Medical College, Qingdao University, Qingdao, 266071 China
| |
Collapse
|
14
|
Vaitsopoulou CI, Kolibianakis EM, Bosdou JK, Neofytou E, Lymperi S, Makedos A, Savvaidou D, Chatzimeletiou K, Grimbizis GF, Lambropoulos A, Tarlatzis BC. Expression of genes that regulate follicle development and maturation during ovarian stimulation in poor responders. Reprod Biomed Online 2020; 42:248-259. [PMID: 33214084 DOI: 10.1016/j.rbmo.2020.05.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 03/12/2020] [Accepted: 05/18/2020] [Indexed: 12/17/2022]
Abstract
RESEARCH QUESTION Sex hormone-binding globulin (SHBG), androgen receptor (AR), LH beta polypeptide (LHB), progesterone receptor membrane component 1 (PGRMC1) and progesterone receptor membrane component 2 (PGRMC2) regulate follicle development and maturation. Their mRNA expression was assessed in peripheral blood mononuclear cells (PBMC) of normal and poor responders, during ovarian stimulation. DESIGN Fifty-two normal responders and 15 poor responders according to the Bologna criteria were enrolled for IVF and intracytoplasmic sperm injection and stimulated with 200 IU of follitrophin alpha and gonadotrophin-releasing hormone antagonist. HCG was administered for final oocyte maturation. On days 1, 6 and 10 of stimulation, blood samples were obtained, serum hormone levels were measured, RNA was extracted from PBMC and real-time polymerase chain reaction was carried out to identify the mRNA levels. Relative mRNA expression of each gene was calculated by the comparative 2-DDCt method. RESULTS Differences between mRNA levels of each gene on the same time point between the two groups were not significant. PGRMC1 and PGRMC2 mRNA levels were downregulated, adjusted for ovarian response and age. Positive correlations between PGRMC1 and AR (standardized beta = 0.890, P < 0.001) from day 1 to 6 and PGRMC1 and LHB (standardized beta = 0.806, P < 0.001) from day 1 to 10 were found in poor responders. PGRMC1 and PGRMC2 were positively correlated on days 6 and 10 in normal responders. CONCLUSIONS PGRMC1 and PGRMC2 mRNA are significantly decreased during ovarian stimulation, with some potential differences between normal and poor responders.
Collapse
Affiliation(s)
- Christine I Vaitsopoulou
- Unit for Human Reproduction, Laboratory of Genetics, 1st Department of Obstetrics and Gynaecology, School of Medicine, Aristotle University of Thessaloniki, Papageorgiou General Hospital, Ring Road, Nea Efkarpia Thessaloniki 56403, Greece.
| | - Efstratios M Kolibianakis
- Unit for Human Reproduction, Laboratory of Genetics, 1st Department of Obstetrics and Gynaecology, School of Medicine, Aristotle University of Thessaloniki, Papageorgiou General Hospital, Ring Road, Nea Efkarpia Thessaloniki 56403, Greece
| | - Julia K Bosdou
- Unit for Human Reproduction, Laboratory of Genetics, 1st Department of Obstetrics and Gynaecology, School of Medicine, Aristotle University of Thessaloniki, Papageorgiou General Hospital, Ring Road, Nea Efkarpia Thessaloniki 56403, Greece
| | - Eirini Neofytou
- Unit for Human Reproduction, Laboratory of Genetics, 1st Department of Obstetrics and Gynaecology, School of Medicine, Aristotle University of Thessaloniki, Papageorgiou General Hospital, Ring Road, Nea Efkarpia Thessaloniki 56403, Greece
| | - Stefania Lymperi
- Unit for Human Reproduction, Laboratory of Genetics, 1st Department of Obstetrics and Gynaecology, School of Medicine, Aristotle University of Thessaloniki, Papageorgiou General Hospital, Ring Road, Nea Efkarpia Thessaloniki 56403, Greece
| | - Anastasios Makedos
- Unit for Human Reproduction, Laboratory of Genetics, 1st Department of Obstetrics and Gynaecology, School of Medicine, Aristotle University of Thessaloniki, Papageorgiou General Hospital, Ring Road, Nea Efkarpia Thessaloniki 56403, Greece
| | - Despina Savvaidou
- Unit for Human Reproduction, Laboratory of Genetics, 1st Department of Obstetrics and Gynaecology, School of Medicine, Aristotle University of Thessaloniki, Papageorgiou General Hospital, Ring Road, Nea Efkarpia Thessaloniki 56403, Greece
| | - Katerina Chatzimeletiou
- Unit for Human Reproduction, Laboratory of Genetics, 1st Department of Obstetrics and Gynaecology, School of Medicine, Aristotle University of Thessaloniki, Papageorgiou General Hospital, Ring Road, Nea Efkarpia Thessaloniki 56403, Greece
| | - Grigoris F Grimbizis
- Unit for Human Reproduction, Laboratory of Genetics, 1st Department of Obstetrics and Gynaecology, School of Medicine, Aristotle University of Thessaloniki, Papageorgiou General Hospital, Ring Road, Nea Efkarpia Thessaloniki 56403, Greece
| | - Alexandros Lambropoulos
- Unit for Human Reproduction, Laboratory of Genetics, 1st Department of Obstetrics and Gynaecology, School of Medicine, Aristotle University of Thessaloniki, Papageorgiou General Hospital, Ring Road, Nea Efkarpia Thessaloniki 56403, Greece
| | - Basil C Tarlatzis
- Unit for Human Reproduction, Laboratory of Genetics, 1st Department of Obstetrics and Gynaecology, School of Medicine, Aristotle University of Thessaloniki, Papageorgiou General Hospital, Ring Road, Nea Efkarpia Thessaloniki 56403, Greece
| |
Collapse
|
15
|
Grazul-Bilska AT, Dorsam ST, Reyaz A, Valkov V, Bass CS, Kaminski SL, Redmer DA. Follicle-stimulating hormone receptors expression in ovine corpora lutea during luteal phase: effect of nutritional plane and follicle-stimulating hormone treatment. Domest Anim Endocrinol 2020; 71:106391. [PMID: 31731250 DOI: 10.1016/j.domaniend.2019.106391] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 08/20/2019] [Accepted: 09/02/2019] [Indexed: 11/18/2022]
Abstract
Corpus luteum (CL), a transient endocrine gland critical for reproductive cyclicity and pregnancy maintenance, is controlled by numerous regulatory factors. Although LH is widely recognized as the major regulator, other factors may also affect luteal functions. It has been demonstrated that FSH receptors (FSHR) are expressed not only in ovarian follicles but also in other tissues within the reproductive tract, including the CL. To evaluate FSHR expression in nontreated (nonsuperovulated; experiment 1) or FSH-treated (superovulated; experiment 2) sheep fed a control (C; maintenance), excess (O; 2 × C), or restricted (U; 0.6 × C) diet, CL were collected at the early, mid and/or late luteal phases (n = 5-7 per group). Protein and messenger RNA (mRNA) expression of FSHR were detected in the CL from all groups using immunohistochemistry followed by image analysis and quantitative RT-PCR, respectively. Follicle-stimulating hormone receptor was immunolocalized to steroidogenic small and large and nonsteroidogenic luteal cells. In both experiments, FSHR protein expression was not affected by stage of luteal development or diet. In experiment 1, expression of mRNA for all FSHR variants was greater (P <0.02 to 0.0003) at the late phase than mid or early luteal phase, and in experiment 2, it was greater (P < 0.001) at the mid than early luteal phase. Plane of nutrition did not affect FSHR mRNA expression. Comparison of FSH-treated with nontreated ewes demonstrated that FSH increased FSHR protein expression by 1.5- to 2-fold (P < 0.0001) in all groups, and mRNA expression by 7- to 30-fold (P < 0.001) for (1) FSHR-1 in all groups except U at the early luteal phase, (2) FSHR-2 in C, O, and U at the mid-phase, but not early luteal phase, and (3) FSHR-3 in U at the mid-luteal phase. Our data demonstrate that (1) FSHRs are expressed in ovine CL at several stages of luteal development, (2) FSHR protein expression does not change during the luteal phase and is not affected by diet, (3) FSHR mRNA expression not only depends on the stage of the estrous cycle but also not affected by diet in nonsuperovulated or superovulated ewes, and (4) in vivo FSH treatment enhanced FSHR protein and/or mRNA expression in the CL depending on diet and phase of the estrous cycle. Presence of FSHR in the CL indicates a regulatory role of FSH in luteal function in sheep. As very little is known about the possible role of FSH and FSHR in luteal functions, further studies should be undertaken to elucidate the endocrine, molecular, and cellular mechanisms of FSH effects on the CL.
Collapse
Affiliation(s)
- A T Grazul-Bilska
- Department of Animal Sciences, North Dakota State University, Fargo, ND 58105, USA.
| | - S T Dorsam
- Department of Animal Sciences, North Dakota State University, Fargo, ND 58105, USA
| | - A Reyaz
- Department of Animal Sciences, North Dakota State University, Fargo, ND 58105, USA
| | - V Valkov
- Department of Animal Sciences, North Dakota State University, Fargo, ND 58105, USA
| | - C S Bass
- Department of Animal Sciences, North Dakota State University, Fargo, ND 58105, USA
| | - S L Kaminski
- Department of Animal Sciences, North Dakota State University, Fargo, ND 58105, USA
| | - D A Redmer
- Department of Animal Sciences, North Dakota State University, Fargo, ND 58105, USA
| |
Collapse
|
16
|
KHARCHE SURESHDINKAR, JENA DAYANIDHI, GANGWAR CHETNA, KHATTI AMIT, BALAMURUGAN B. Role of certain growth factors and hormones in folliculogenesis. THE INDIAN JOURNAL OF ANIMAL SCIENCES 2020. [DOI: 10.56093/ijans.v89i12.96617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Folliculogenesis is an inextricable process associated with female fertility and infertility cases. This process involves many events at cellular and molecular level in a highly orchestrated fashion which culminates with ovulation. Various factors like hormonal factors, growth factors, role of ovarian micro environment, diseases of reproductive tract etc. influence the process of folliculogenesis in systematic manner. The function and mechano-biology of these growth factors and hormones have been studied by many researchers. This review discusses about those hormonal and growth factors which are involved in folliculogenesis process.
Collapse
|
17
|
Hoque SAM, Kawai T, Zhu Z, Shimada M. Mitochondrial Protein Turnover Is Critical for Granulosa Cell Proliferation and Differentiation in Antral Follicles. J Endocr Soc 2018; 3:324-339. [PMID: 30652133 PMCID: PMC6330174 DOI: 10.1210/js.2018-00329] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 11/27/2018] [Indexed: 12/28/2022] Open
Abstract
Granulosa cell (GC) proliferation is essential for follicular development. FSH is a key factor in GC proliferation, and a continuous supply of high levels of ATP is necessary for cell proliferation. However, genes encoding proteins of the glycolytic pathways are poorly expressed in GCs. Therefore, we hypothesized that mitochondrial gene expression and protein synthesis play a primary role in ATP production during GC proliferation. To test this hypothesis, we performed an in vivo study of GCs collected from 23-day-old mice ovaries with or without equine chorionic gonadotropin (eCG) priming. It was observed that mitochondrial activity with membrane potential, expression of protein-coding genes (Nd1-6, Cytb, Atpase6,8) and transcription-related genes (Polrmt, Tfam, Tfb2m), copy number of mitochondrial (mt-)DNA, and protein synthesis were increased in GCs after 24 hours of eCG injection and mostly maintained elevated up to 48 hours. Therefore, we performed in vitro culture of GCs in DMEM medium supplemented with FSH, testosterone, and serum and containing different glucose concentrations with or without d-chloramphenicol (CRP) for 24 hours. GC proliferation and ATP production were observed to be independent of glucose concentration. Furthermore, FSH-induced mitochondrial activity with membrane potential, ATP content, BrdU-incorporated cell proliferation, intensity of mt-ND1 and mt-ND6 proteins, and expressions of marker genes for proliferation and differentiation were significantly decreased by CRP treatment. These results revealed the crucial role of mitochondria in the supply of ATP and the necessity of mitochondrial gene expression and protein synthesis in not only the proliferation but also the differentiation of GCs during follicular development.
Collapse
Affiliation(s)
- S A Masudul Hoque
- Laboratory of Reproductive Endocrinology, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan.,Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh
| | - Tomoko Kawai
- Laboratory of Reproductive Endocrinology, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - Zhendong Zhu
- Laboratory of Reproductive Endocrinology, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan.,College of Animal Science and Technology, Northwest A&F University, Shaanxi, China
| | - Masayuki Shimada
- Laboratory of Reproductive Endocrinology, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| |
Collapse
|
18
|
Gram A, Redmer DA, Kowalewski MP, Dorsam ST, Valkov V, Warang P, Reyaz A, Bass CS, Kaminski SL, Grazul-Bilska AT. Angiopoietin expression in ovine corpora lutea during the luteal phase: Effects of nutrition, arginine and follicle stimulating hormone. Gen Comp Endocrinol 2018; 269:131-140. [PMID: 30195024 DOI: 10.1016/j.ygcen.2018.09.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 09/02/2018] [Accepted: 09/04/2018] [Indexed: 11/15/2022]
Abstract
The aim of this study was to evaluate angiopoietin (ANGPT) 1 and 2, and tyrosine-protein kinase receptor 2 (TIE2) expression in the corpora lutea (CL) of FSH-treated, or non-treated sheep administered arginine (Arg) or vehicle (saline, Sal), and fed a control (C), excess (O) or restricted (U) diet. Ewes from each dietary group were treated with Arg or Sal (experiment 1), and with FSH (experiment 2). Luteal tissues were collected at the early-, mid- and/or late-luteal phases of the estrous cycle. Protein and mRNA expression was determined using immunohistochemistry followed by image analysis, and quantitative RT-PCR, respectively. The results demonstrated that ANGPT1 and TIE2 proteins were localized to luteal capillaries and endothelial cells of larger blood vessels, and ANGPT2 was localized to tunica media of larger blood vessels. TIE2 protein was also present in luteal cells. In experiment 1, ANGPT1 protein expression was greater in O than C during early- and mid-luteal phases, and was greatest during late-luteal phase, less at the mid- and least at the early-luteal phase; 2) TIE2 protein expression was greatest at the mid-, less at the early- and least at the late-luteal phase; 3) ANGPT1 and 2 mRNA expression was greater at the mid- and late- than the early-luteal phase, and TIE2 mRNA expression was greatest at the late-, less at the mid- and least at the early-luteal phase. The ANGPT1/2 ratio was less at the early- than mid- or late-luteal phases. In experiment 2, ANGPT1 protein expression was greater in O during the mid-luteal phase than in other groups, and was greater at the mid- than early-luteal phase. TIE2 protein expression was highest at the mid-, less at the early- and least during the late-luteal phase. ANGPT1 and 2, and TIE2 mRNA expression was higher at the mid- than the early-luteal phase. During mid-luteal phase, ANGPT1 mRNA expression was greater in C than O and U, ANGPT2 was greatest in C, less in O and least in U, and TIE2 mRNA expression was greater in C than O and U. The ANGPT1/2 ratio was higher in U than in any other group. Comparison of FSH vs. Sal treatment effects (experiment 2 vs. experiment 1) demonstrated that FSH affected ANGPT1 and/or -2, and TIE2 protein and mRNA expression depending on luteal phase and/or diet. Thus, expression of ANGPTs and TIE2 in the CL changes during the luteal lifespan, indicating their involvement in luteal vascular formation, stabilization and degradation. Moreover, this study has demonstrated that plane of nutrition and/or FSH treatment affect the ANGPT system, and may alter luteal vascularity and luteal function in sheep.
Collapse
Affiliation(s)
- Aykut Gram
- Institute of Veterinary Anatomy, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Dale A Redmer
- Department of Animal Sciences, North Dakota State University, Fargo, ND 58108, USA
| | - Mariusz P Kowalewski
- Institute of Veterinary Anatomy, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Sheri T Dorsam
- Department of Animal Sciences, North Dakota State University, Fargo, ND 58108, USA
| | - Veselina Valkov
- Department of Animal Sciences, North Dakota State University, Fargo, ND 58108, USA
| | - Prajakta Warang
- Department of Animal Sciences, North Dakota State University, Fargo, ND 58108, USA
| | - Arshi Reyaz
- Department of Animal Sciences, North Dakota State University, Fargo, ND 58108, USA
| | - Casie S Bass
- Department of Animal Sciences, North Dakota State University, Fargo, ND 58108, USA
| | - Samantha L Kaminski
- Department of Animal Sciences, North Dakota State University, Fargo, ND 58108, USA
| | - Anna T Grazul-Bilska
- Department of Animal Sciences, North Dakota State University, Fargo, ND 58108, USA.
| |
Collapse
|
19
|
Romero R. A profile of Bruno Lunenfeld, MD, FRCOG, FACOG (hon). Am J Obstet Gynecol 2018; 219:225-234. [PMID: 30170793 DOI: 10.1016/j.ajog.2018.06.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 06/25/2018] [Indexed: 10/28/2022]
|
20
|
Grazul-Bilska AT, Reyaz A, Valkov V, Dorsam ST, Redmer DA. Follicle stimulating hormone receptor protein is expressed in ovine uterus during the estrous cycle and utero-placenta during early pregnancy: An immunohistochemical study. Acta Histochem 2018; 120:420-428. [PMID: 29754696 DOI: 10.1016/j.acthis.2018.05.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 05/08/2018] [Indexed: 12/26/2022]
Abstract
Follicle stimulating hormone (FSH) is a well characterized gonadotropin that controls primarily development and functions of ovarian follicles in mammalian species. FSH binds to a specific G protein-coupled receptor (FSHR) belonging to the glycoprotein hormone receptor family that plays an essential role in reproduction. Although the primary location of FSHR is in the gonads (mainly in ovarian follicles), FSHR protein and/or mRNA have also been detected in extragonadal female reproductive tissues including embryo, placenta, endometrium, cervix, ovarian cancer tissues, and/or endometriotic lesions in several species. To determine the pattern of FSHR expression in the uterus and placenta, uterine tissues were collected at the early, mid- and/or late luteal phases of the estrous cycle from non-treated or FSH-treated ewes, and utero-placental tissues were collected during early pregnancy followed by immunohistochemistry and image generation. FSHR was immunolocalized to several uterine and utero-placental compartments including luminal epithelium, endometrial glands and surrounding stroma, myometrium, and endothelium and vascular smooth muscle cells in endometrium, myometrium and mesometrium. Intensity of staining and distribution of FSHR in selected compartments differed and seems to depend on the stage of the estrous cycle or pregnancy, and FSH-treatment. These novel data demonstrate differential expression of FSHR protein indicating that FSH plays a specific role in regulation of uterine and utero-placenta functions in sheep.
Collapse
|
21
|
Grazul-Bilska AT, Thammasiri J, Kraisoon A, Reyaz A, Bass CS, Kaminski SL, Navanukraw C, Redmer DA. Expression of progesterone receptor protein in the ovine uterus during the estrous cycle: Effects of nutrition, arginine and FSH. Theriogenology 2017; 108:7-15. [PMID: 29175682 DOI: 10.1016/j.theriogenology.2017.11.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 11/06/2017] [Accepted: 11/09/2017] [Indexed: 12/14/2022]
Abstract
To evaluate expression of progesterone receptor (PGR) AB in follicle stimulating hormone (FSH)-treated or non-treated sheep administered with arginine (Arg) or saline (Sal) fed a control (C), excess (O) or restricted (U) diet, uterine tissues were collected at the early, mid and/or late luteal phases. In exp. 1, ewes from each diet were randomly assigned to one of two treatments, Arg or Sal administration three times daily from day 0 of the first estrous cycle until uterine tissue collection. In exp. 2, ewes were injected twice daily with FSH on days 13-15 of the first estrous cycle. Uterine tissues were immunostained to detect PGR followed by image analysis. PGR were detected in luminal epithelium (LE), endometrial glands (EG), endometrial stroma (ES), myometrium (Myo), and endometrial and myometrial blood vessels. The percentage of PR-positive cells and/or intensity of staining were affected by phase of the estrous cycle, plane of nutrition, and/or FSH but not by Arg. In exp. 1, percentage of PGR-positive cells in LE and EG but not in ES and Myo was greater at the early and mid than late luteal phase, was not affected by plane of nutrition, and was similar in LE and EG. Intensity of staining was affected by phase of the estrous cycle and plane of nutrition in LE, EG and Myo, and was the greatest in LE, less in EG, and least in ES and Myo. In exp. 2, percentage of PGR-positive cells in LE, EG, ES and Myo was affected by phase of the estrous cycle, but not by plane of nutrition; was greater at the early than mid luteal phase; and was greatest in LE and EG, less in luminal (superficial) ES and Myo and least in deep ES. Intensity of staining was affected by phase of the estrous cycle and plane of nutrition in all compartments but ES, and was the greatest in LE and luminal EG, less in deep EG, and least in ES and Myo. Comparison of data for FSH (superovulated) and Sal-treated (non-superovulated) ewes demonstrated that FSH affected PR expression in all evaluated uterine compartments depending on plane of nutrition and phase of the estrous cycle. Thus, PGR are differentially distributed in uterine compartments, and PGR expression is affected by nutritional plane and FSH, but not Arg depending on phase of the estrous cycle. Such changes in dynamics of PGR expression indicate that diet plays a regulatory role and that FSH-treatment may alter uterine functions.
Collapse
Affiliation(s)
- Anna T Grazul-Bilska
- Department of Animal Sciences, North Dakota State University, Fargo, ND 58108, USA.
| | - Jiratti Thammasiri
- Agricultural Biotechnology Research Center for Sustainable Economy (ABRCSE), Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Aree Kraisoon
- Agricultural Biotechnology Research Center for Sustainable Economy (ABRCSE), Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Arshi Reyaz
- Department of Animal Sciences, North Dakota State University, Fargo, ND 58108, USA
| | - Casie S Bass
- Department of Animal Sciences, North Dakota State University, Fargo, ND 58108, USA
| | - Samantha L Kaminski
- Department of Animal Sciences, North Dakota State University, Fargo, ND 58108, USA
| | - Chainarong Navanukraw
- Agricultural Biotechnology Research Center for Sustainable Economy (ABRCSE), Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Dale A Redmer
- Department of Animal Sciences, North Dakota State University, Fargo, ND 58108, USA
| |
Collapse
|
22
|
Assessment of ovarian function after chemotherapy in women with early and locally advanced breast cancer from Serbia. Arch Gynecol Obstet 2017; 297:495-503. [DOI: 10.1007/s00404-017-4581-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 10/26/2017] [Indexed: 01/23/2023]
|
23
|
Alginate: A Versatile Biomaterial to Encapsulate Isolated Ovarian Follicles. Ann Biomed Eng 2017; 45:1633-1649. [DOI: 10.1007/s10439-017-1816-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 02/22/2017] [Indexed: 12/19/2022]
|
24
|
Morphometric characteristics of preantral and antral follicles and expression of factors involved in folliculogenesis in ovaries of adult baboons (Papio anubis). J Assist Reprod Genet 2016; 33:617-626. [PMID: 26945754 DOI: 10.1007/s10815-016-0681-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 02/22/2016] [Indexed: 02/04/2023] Open
Abstract
PURPOSE Baboons are commonly utilized as an animal model for studies of human reproduction. However, folliculogenesis in this species has not been fully documented. The aim of this study was to assess follicle morphometry and expression of essential proteins involved in folliculogenesis in baboons. METHODS Ovaries were recovered from four adult baboons and processed for histological evaluation and immunohistochemical analyses. Follicle proportion, follicle and oocyte diameter, theca layer thickness, number of granulosa cells, and follicle density were calculated. Immunohistochemical staining was also carried out for connexin 43 (Cx43), aromatase, and zona pellucida 3 (ZP3). RESULTS A total of 2221 follicles were counted and measured. Proportions of primordial, primary, secondary, small antral, and large antral follicles were 49, 26, 23, 1, and 1 %, respectively. The increase in follicle diameter was due not only to the increase in oocyte diameter but also to granulosa cell proliferation. Almost all antral follicles were positive for Cx43 (89.8 %), aromatase (84.8 %), and ZP3 (100 %). Most secondary follicles were positive for Cx43 (65 %) and ZP3 (64.5 %), and some primary follicles were positive only for Cx43. No primordial follicles stained positive in any of these immunohistochemical analyses. Only antral follicles showed aromatase activity. CONCLUSIONS On the basis of these results, we can conclude that folliculogenesis in baboons appears to be similar to that in humans, and this animal therefore constitutes a valuable model.
Collapse
|
25
|
Fleming R, Seifer DB, Frattarelli JL, Ruman J. Assessing ovarian response: antral follicle count versus anti-Müllerian hormone. Reprod Biomed Online 2015; 31:486-96. [PMID: 26283017 DOI: 10.1016/j.rbmo.2015.06.015] [Citation(s) in RCA: 158] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 05/27/2015] [Accepted: 06/23/2015] [Indexed: 11/29/2022]
Abstract
Oocyte number and quality decline with age; however, fertility varies significantly even among women of the same age. Various measures have been developed to predict response to ovarian stimulation and reproductive potential. Evaluation of ovarian reserve can identify patients who may experience poor response or hyper-response to exogenous gonadotrophins and can aid in the personalization of treatment to achieve good response and minimize risks. In recent years, two key methods, antral follicle count (AFC), an ultrasound biomarker of follicle number, and the concentration of serum anti-Müllerian hormone (AMH), a hormone biomarker of follicle number, have emerged as preferred methods for assessing ovarian reserve. In this review, a live debate held at the American Society for Reproductive Medicine 2013 Annual Meeting is expanded upon to compare the predictive values, merits, and disadvantages of AFC and AMH level. An ovarian reserve measure without limitations has not yet been discovered, although both AFC and AMH have good predictive value. Published evidence, however, as well as the objectivity and potential standardization of AMH level and the convenience of testing any time throughout the menstrual cycle, leans towards AMH level becoming the gold-standard biomarker to evaluate ovarian reserve and predict ovarian response to stimulation.
Collapse
Affiliation(s)
- Richard Fleming
- Glasgow Centre for Reproductive Medicine, 21 Fifty Pitches Way, Gardonald Business Park, Glasgow G51-4FD, UK.
| | - David B Seifer
- Oregon Health and Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239, USA
| | - John L Frattarelli
- Fertility Institute of Hawaii, 1401 South Beretania St, Suite 250, Honolulu, HI 96814, USA
| | - Jane Ruman
- Ferring Pharmaceuticals, Inc, 100 Interpace Pkwy, Parsippany, NJ 07054, USA
| |
Collapse
|
26
|
Asraf H, Amsterdam A, Ben-Menahem D. Modulation of the steroidogenic related activity according to the design of single-chain bovine FSH analogs. Gen Comp Endocrinol 2015; 216:171-81. [PMID: 25863346 DOI: 10.1016/j.ygcen.2015.04.004] [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: 01/20/2015] [Revised: 03/22/2015] [Accepted: 04/05/2015] [Indexed: 10/23/2022]
Abstract
Single-chain (SC) gonadotropins have been genetically engineered to increase the repertoire of analogs for potential use in humans and domestic animals. The major aim of the current study was to examine the steroidogenic related activity of SC FSH analogs carrying structural differences. To address this issue, we designed and expressed three SC bovine FSH analogs in CHO cells: (i) FSHβα in which the tethered subunit domains are linked in tandem; (ii) FSHβCTPα that contains the carboxy terminal peptide (CTP) of the human choriogonadotropin (hCG) β subunit as a spacer, and (iii) FSHβboCTPα in which the linker is derived from a CTP-like sequence (boCTP) decoded from the bovine LHβ DNA. The data suggested that the secretion efficiency of these variants from the transfected cells was unaffected by the presence or absence of the CTP linker, N-glycans were attached to the analogs and the hCGβ-CTP domain in the FSHβCTPα variant was O-glycosylated. In a rat immortalized granulosa cell bioassay the potency of the three variants towards progesterone secretion varied. In immature mice, the analogs increased the ovary weight and induced StAR, Cyp11a (P450scc), Cyp17 (P450c17) and Cyp19 (P450aromatase) transcripts. However, the dose dependence and amplitude of these transcript levels differed in response to FSHβα, FSHβboCTPα and FSHβCTPα. Collectively, these data suggest that the design of the FSH analog can modulate the bioactivity in vitro and in vivo. A systematic analysis of receptor activation with ligands carrying structural differences may identify new regulatory factor/s involved in the pleiotropic FSH activity.
Collapse
Affiliation(s)
- Hila Asraf
- Department of Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Abraham Amsterdam
- Department of Molecular and Cellular Biology, Weizmann Institute of Science, Rehovot, Israel
| | - David Ben-Menahem
- Department of Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
| |
Collapse
|
27
|
Nataraja SG, Yu HN, Palmer SS. Discovery and Development of Small Molecule Allosteric Modulators of Glycoprotein Hormone Receptors. Front Endocrinol (Lausanne) 2015; 6:142. [PMID: 26441832 PMCID: PMC4568768 DOI: 10.3389/fendo.2015.00142] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 08/31/2015] [Indexed: 11/30/2022] Open
Abstract
Glycoprotein hormones, follicle-stimulating hormone (FSH), luteinizing hormone (LH), and thyroid-stimulating hormone (TSH) are heterodimeric proteins with a common α-subunit and hormone-specific β-subunit. These hormones are dominant regulators of reproduction and metabolic processes. Receptors for the glycoprotein hormones belong to the family of G protein-coupled receptors. FSH receptor (FSHR) and LH receptor are primarily expressed in somatic cells in ovary and testis to promote egg and sperm production in women and men, respectively. TSH receptor is expressed in thyroid cells and regulates the secretion of T3 and T4. Glycoprotein hormones bind to the large extracellular domain of the receptor and cause a conformational change in the receptor that leads to activation of more than one intracellular signaling pathway. Several small molecules have been described to activate/inhibit glycoprotein hormone receptors through allosteric sites of the receptor. Small molecule allosteric modulators have the potential to be administered orally to patients, thus improving the convenience of treatment. It has been a challenge to develop a small molecule allosteric agonist for glycoprotein hormones that can mimic the agonistic effects of the large natural ligand to activate similar signaling pathways. However, in the past few years, there have been several promising reports describing distinct chemical series with improved potency in preclinical models. In parallel, proposal of new structural model for FSHR and in silico docking studies of small molecule ligands to glycoprotein hormone receptors provide a giant leap on the understanding of the mechanism of action of the natural ligands and new chemical entities on the receptors. This review will focus on the current status of small molecule allosteric modulators of glycoprotein hormone receptors, their effects on common signaling pathways in cells, their utility for clinical application as demonstrated in preclinical models, and use of these molecules as novel tools to dissect the molecular signaling pathways of these receptors.
Collapse
Affiliation(s)
- Selvaraj G. Nataraja
- TocopheRx Inc., Burlington, MA, USA
- *Correspondence: Selvaraj G. Nataraja, TocopheRx Inc., 15 New England Executive Park, Suite 1087, Burlington, MA 01803, USA,
| | - Henry N. Yu
- TocopheRx Inc., Burlington, MA, USA
- EMD Serono Research and Development Institute Inc., Billerica, MA, USA
| | | |
Collapse
|
28
|
Abstract
For many decades, elevated androgens in women have been associated with poor reproductive health. However, recent studies have shown that androgens play a crucial role in women's fertility. The following review provides an overall perspective about how androgens and androgen receptor-mediated actions regulate normal follicular development, as well as discuss emerging concepts, latest perceptions, and controversies regarding androgen actions and signaling in the ovary.
Collapse
Affiliation(s)
- Hen Prizant
- Division of Endocrinology and MetabolismDepartment of Medicine, University of Rochester School of Medicine and Dentistry, 601 Elmwood Avenue, PO Box 693, Rochester, New York 14642, USACenter for Human ReproductionNew York, New York 10021, USA
| | - Norbert Gleicher
- Division of Endocrinology and MetabolismDepartment of Medicine, University of Rochester School of Medicine and Dentistry, 601 Elmwood Avenue, PO Box 693, Rochester, New York 14642, USACenter for Human ReproductionNew York, New York 10021, USA
| | - Aritro Sen
- Division of Endocrinology and MetabolismDepartment of Medicine, University of Rochester School of Medicine and Dentistry, 601 Elmwood Avenue, PO Box 693, Rochester, New York 14642, USACenter for Human ReproductionNew York, New York 10021, USADivision of Endocrinology and MetabolismDepartment of Medicine, University of Rochester School of Medicine and Dentistry, 601 Elmwood Avenue, PO Box 693, Rochester, New York 14642, USACenter for Human ReproductionNew York, New York 10021, USA
| |
Collapse
|
29
|
Leão RDBF, Esteves SC. Gonadotropin therapy in assisted reproduction: an evolutionary perspective from biologics to biotech. Clinics (Sao Paulo) 2014; 69:279-93. [PMID: 24714837 PMCID: PMC3971356 DOI: 10.6061/clinics/2014(04)10] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Revised: 08/30/2013] [Accepted: 08/30/2013] [Indexed: 11/18/2022] Open
Abstract
Gonadotropin therapy plays an integral role in ovarian stimulation for infertility treatments. Efforts have been made over the last century to improve gonadotropin preparations. Undoubtedly, current gonadotropins have better quality and safety profiles as well as clinical efficacy than earlier ones. A major achievement has been introducing recombinant technology in the manufacturing processes for follicle-stimulating hormone, luteinizing hormone, and human chorionic gonadotropin. Recombinant gonadotropins are purer than urine-derived gonadotropins, and incorporating vial filling by mass virtually eliminated batch-to-batch variations and enabled accurate dosing. Recombinant and fill-by-mass technologies have been the driving forces for launching of prefilled pen devices for more patient-friendly ovarian stimulation. The most recent developments include the fixed combination of follitropin alfa + lutropin alfa, long-acting FSH gonadotropin, and a new family of prefilled pen injector devices for administration of recombinant gonadotropins. The next step would be the production of orally bioactive molecules with selective follicle-stimulating hormone and luteinizing hormone activity.
Collapse
Affiliation(s)
- Rogério de Barros F Leão
- Referral Center for Male Reproduction, Andrology & Human Reproduction Clinic (ANDROFERT), Campinas, SP, Brazil
| | - Sandro C Esteves
- Referral Center for Male Reproduction, Andrology & Human Reproduction Clinic (ANDROFERT), Campinas, SP, Brazil
| |
Collapse
|
30
|
Elevated level of 17β-estradiol is associated with overexpression of FSHR, CYP19A1, and CTNNB1 genes in porcine ovarian follicles after prenatal and neonatal flutamide exposure. Theriogenology 2012; 78:2050-60. [PMID: 23043943 DOI: 10.1016/j.theriogenology.2012.07.026] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2012] [Revised: 07/23/2012] [Accepted: 07/29/2012] [Indexed: 11/20/2022]
Abstract
Recent studies suggest that disturbed androgen action during gestational and neonatal periods leads to reprogramming of the trajectory of ovarian development, manifested by altered follicular functioning in adulthood. In this study, we tested whether prenatal and neonatal exposure to antiandrogen flutamide affected ovarian 17β-estradiol (E(2)) synthesis and the associated gene expression in large antral follicles of adult pigs. Flutamide was injected into pregnant gilts between Days 80 and 88 of gestation and into female piglets between Days 2 and 10 postnatally. After animals reached sexual maturity, the ovaries were collected from treated and nontreated (control) pigs. The analysis of E(2) concentration in follicular tissues, as well as FSH and LH levels in plasma of control and flutamide-treated animals were conducted. In addition, the expression of mRNAs and proteins for FSH receptor (FSHR), cytochrome P450 aromatase (CYP19A1) and β-catenin (CTNNB1) was examined in large antral follicles of adult pigs. The E(2) concentration was greater in response to flutamide administered prenatally (P < 0.05) and neonatally (P < 0.01), whereas there was no changes in plasma gonadotropin concentration. Real-time polymerase chain reaction analysis revealed significant upregulation of FSHR, CYP19A1, and CTNNB1 at the mRNA level after maternal (P < 0.001, P < 0.01, P < 0.05, respectively) and neonatal (P < 0.001, P < 0.001, P < 0.01, respectively) flutamide exposure. The expression of FSHR protein was higher (P < 0.01) only after neonatal exposure to flutamide, whereas CYP19A1 and CTNNB1 proteins were upregulated in response to both prenatal (P < 0.01) and neonatal (P < 0.001) flutamide administration. Furthermore, membranous CTNNB1 immunolocalization indicates that it is not involved in regulation of FSH-mediated CYP19A1 activity as a transcription factor, but rather contributes to the intercellular adhesion. Concluding, it appears that the higher E(2) level in response to flutamide treatments is a result of the intensified aromatization and local E(2) action at the ovary level. The observed changes might influence the normal follicle development and pig fertility as a consequence.
Collapse
|
31
|
Al-Azemi M, Kyrou D, Kolibianakis EM, Humaidan P, Van Vaerenbergh I, Devroey P, Fatemi HM. Elevated progesterone during ovarian stimulation for IVF. Reprod Biomed Online 2012; 24:381-8. [PMID: 22377153 DOI: 10.1016/j.rbmo.2012.01.010] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2011] [Revised: 12/23/2011] [Accepted: 01/10/2012] [Indexed: 10/14/2022]
Abstract
There is an ongoing debate regarding the impact of premature progesterone rise on the IVF outcome. The objective of this review is to assess evidence of poorer ongoing pregnancy rate in IVF cycles with elevated serum progesterone at the end of follicular phase in ovarian stimulation. It also explores the origin of the progesterone rise, potential modifying factors and possible methods to prevent its rise during ovarian stimulation. This review draws on information already published from monitoring progesterone concentrations at the end of follicular phase in ovarian stimulation. The databases of Medline and PubMed were searched to identify relevant publications. Good-quality evidence supports the negative impact on endometrial receptivity of elevated progesterone concentrations at the end of the follicular phase in ovarian stimulation. Future trials should document the cause and origin of premature progesterone in stimulated IVF cycles. There is an ongoing debate regarding the impact of premature progesterone rise on the IVF outcome. The objective of this review is to assess evidence of poorer ongoing pregnancy rate in IVF cycles with elevated serum progesterone at the end of follicular phase in ovarian stimulation. It also explores the origin of the progesterone rise, potential modifying factors and possible methods to prevent its rise during ovarian stimulation. This review draws on information already published from monitoring progesterone concentrations at the end of follicular phase in ovarian stimulation. The databases of Medline and PubMed were searched to identify relevant publications. Good-quality evidence supports the negative impact on endometrial receptivity of elevated progesterone concentrations at the end of follicular phase in ovarian stimulation. Future trials should document the cause and origin of premature progesterone in stimulated IVF cycles.
Collapse
Affiliation(s)
- M Al-Azemi
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Kuwait University, Safat, Kuwait
| | | | | | | | | | | | | |
Collapse
|
32
|
DUDA M, DURLEJ M, KNET M, KNAPCZYK-STWORA K, TABAROWSKI Z, SLOMCZYNSKA M. Does 2-hydroxyflutamide Inhibit Apoptosis in Porcine Granulosa Cells? — An In Vitro Study. J Reprod Dev 2012; 58:438-44. [DOI: 10.1262/jrd.2011-034] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Malgorzata DUDA
- Department of Endocrinology, Institute of Zoology, Jagiellonian University, 30-387 Krakow, Poland
| | - Malgorzata DURLEJ
- Department of Endocrinology, Institute of Zoology, Jagiellonian University, 30-387 Krakow, Poland
| | - Malgorzata KNET
- Department of Endocrinology, Institute of Zoology, Jagiellonian University, 30-387 Krakow, Poland
| | | | - Zbigniew TABAROWSKI
- Department of Experimental Hematology, Institute of Zoology, Jagiellonian University, 30-387 Krakow, Poland
| | - Maria SLOMCZYNSKA
- Department of Endocrinology, Institute of Zoology, Jagiellonian University, 30-387 Krakow, Poland
| |
Collapse
|
33
|
Wu Y, Luo H, Liu J, Kang D, McNeilly AS, Cui S. LIM homeodomain transcription factor Isl-1 enhances follicle stimulating hormone-beta and luteinizing hormone-beta gene expression and mediates the activation of leptin on gonadotropin synthesis. Endocrinology 2010; 151:4787-800. [PMID: 20702576 DOI: 10.1210/en.2010-0208] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The Lin-11, Isl-1, and Mec-3 (LIM) homeodomain transcription factor Isl-1 has been reported to be involved in pituitary development in the early stages of mouse embryogenesis. Our recent studies have shown that Isl-1 is mainly located in the pituitary gonadotropes throughout pituitary development and persists to adulthood. We still do not know the physiological functions of Isl-1 expression and its related mechanisms in the pituitary gland. The aim of the present study was to examine the hypothesis that Isl-1 is involved in regulating pituitary gonadotropin hormone (FSH/LH) production by activating FSHβ and LHβ gene expressions. We have shown that Isl-1 activates FSHβ and LHβ subunit promoters and endogenous gene transcription in LβT2 cells. In addition, Isl-1 overexpression significantly increased FSH synthesis and secretion but not LH. The actions of Isl-1 were not observed when the homeodomain or LIM1 domains are mutated. This demonstrates that Isl-1 induction of FSHβ and LHβ is by both direct and indirect binding of Isl-1 to DNA sequences. Furthermore, Isl-1 expressional level was up-regulated in LβT2 cells after exposure to GnRH, activin, and leptin. However, RNA interference-induced knockdown of Isl-1 significantly reduced the effect of leptin but did not obviously influence the stimulating effects of GnRH and activin on LH and FSH production. In conclusion, the results demonstrate that the LIM-homeodomain transcription factor Isl-1 functions to increase FSHβ/LHβ gene transcription, and mediates the effects of leptin on gonadotropin synthesis.
Collapse
Affiliation(s)
- Yingjie Wu
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, People's Republic of China
| | | | | | | | | | | |
Collapse
|
34
|
Artini PG, Ruggiero M, Papini F, Valentino V, Uccelli A, Cela V, Genazzani AR. Chromosomal abnormalities in women with premature ovarian failure. Gynecol Endocrinol 2010; 26:717-24. [PMID: 20653407 DOI: 10.3109/09513590.2010.500427] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Premature ovarian failure is a complex disorder that results in the early loss of ovarian function; however this disease must be separated from early menopause because these patients can sporadically ovulate and in literature are described pregnancies. The aetiology and the patho-physiology of premature ovarian failure are still matter of debate, but is commonly accepted that genetic factors play an important role. This review is aimed to present an overview of known inherited factor implied in the pathogenesis of this disorder to help physician in the counselling of affected pregnant women.
Collapse
Affiliation(s)
- Paolo Giovanni Artini
- Division of Obstetrics and Gynecology, Department of Reproductive Medicine and Child Development, University of Pisa, Via Roma 56, 56126 Pisa, Italy.
| | | | | | | | | | | | | |
Collapse
|
35
|
Levavi-Sivan B, Bogerd J, Mañanós EL, Gómez A, Lareyre JJ. Perspectives on fish gonadotropins and their receptors. Gen Comp Endocrinol 2010; 165:412-37. [PMID: 19686749 DOI: 10.1016/j.ygcen.2009.07.019] [Citation(s) in RCA: 323] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2009] [Revised: 07/10/2009] [Accepted: 07/16/2009] [Indexed: 12/19/2022]
Abstract
Teleosts lack a hypophyseal portal system and hence neurohormones are carried by nerve fibers from the preoptic region to the pituitary. The various cell types in the teleost pituitary are organized in discrete domains. Fish possess two gonadotropins (GtH) similar to FSH and LH in other vertebrates; they are heterodimeric hormones that consist of a common alpha subunit non-covalently associated with a hormone-specific beta subunit. In recent years the availability of molecular cloning techniques allowed the isolation of the genes coding for the GtH subunits in 56 fish species representing at least 14 teleost orders. Advanced molecular engineering provides the technology to produce recombinant GtHs from isolated cDNAs. Various expression systems have been used for the production of recombinant proteins. Recombinant fish GtHs were produced for carp, seabream, channel and African catfish, goldfish, eel, tilapia, zebrafish, Manchurian trout and Orange-spotted grouper. The hypothalamus in fishes exerts its regulation on the release of the GtHs via several neurohormones such as GnRH, dopamine, GABA, PACAP, IGF-I, norepinephrine, NPY, kisspeptin, leptin and ghrelin. In addition, gonadal steroids and peptides exert their effects on the gonadotropins either directly or via the hypothalamus. All these are discussed in detail in this review. In mammals, the biological activities of FSH and LH are directed to different gonadal target cells through the cell-specific expression of the FSH receptor (FSHR) and LH receptor (LHR), respectively, and the interaction between each gonadotropin-receptor couple is highly selective. In contrast, the bioactivity of fish gonadotropins seems to be less specific as a result of promiscuous hormone-receptor interactions, while FSHR expression in Leydig cells explains the strong steroidogenic activity of FSH in certain fish species.
Collapse
Affiliation(s)
- B Levavi-Sivan
- The Robert H. Smith Faculty of Agriculture, Food and Environment, Department of Animal Sciences, The Hebrew University of Jerusalem, Rehovot 76100, Israel.
| | | | | | | | | |
Collapse
|
36
|
Mori T, Nonoguchi K, Watanabe H, Ishikawa H, Tamura I, Kinoshita K. Morphogenesis of polycystic ovaries as assessed by pituitary-ovarian androgenic function. Reprod Biomed Online 2009; 18:635-43. [PMID: 19549441 DOI: 10.1016/s1472-6483(10)60007-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Despite polycystic ovaries (PCO) being a common morphology in women with polycystic ovary syndrome and regular menstruation, the regulatory principles in the morphogenesis of antral follicles have not yet been elucidated. In recognition of the complementary interaction between androgen-induced expression of the FSH receptor and FSH-augmented expression of the androgen receptor in granulose cells of antral follicles, a possible correlation of antral follicle count (AFC) and pituitary-ovarian androgenic function was investigated in 180 infertile women over days 3-5 of the menstrual cycle. Six discrete types of PCO with decreasing pituitary-ovarian androgenic function were identified: Type I (classical Stein-Leventhal syndrome), Type II (hyperandrogenemism), Type III (singular hyper-LH), Type IV (cryptic hyperandrogenism), Type V (relative LH dominancy) and Type VI (relative FSH dominancy), in parallel to a diminishing number of AFC from Type I to Type VI. Because during the early follicular phase of the cycle until the selection of the dominant follicle, antral follicles are composed of newly emerged healthy follicles plus atretic antral follicles that remain non-ovulated from previous cycles, it is proposed that the six types of PCO may represent the folliculogenetic spectra along which PCO morphogenesis proceeds.
Collapse
Affiliation(s)
- Takahide Mori
- Academia for Repro-regenerative Medicine, Doujn Hospital, Kamigyo-ku, Kyoto, Japan.
| | | | | | | | | | | |
Collapse
|
37
|
Lan VTN, Norman RJ, Nhu GH, Tuan PH, Tuong HM. Ovulation induction using low-dose step-up rFSH in Vietnamese women with polycystic ovary syndrome. Reprod Biomed Online 2009; 18:516-21. [DOI: 10.1016/s1472-6483(10)60128-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
38
|
First live birth following IVF–embryo transfer and use of GnRHa alone for ovarian stimulation. Reprod Biomed Online 2009; 19:162-4. [DOI: 10.1016/s1472-6483(10)60067-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
39
|
Toloubeydokhti T, Bukulmez O, Chegini N. Potential regulatory functions of microRNAs in the ovary. Semin Reprod Med 2008; 26:469-78. [PMID: 18951329 DOI: 10.1055/s-0028-1096127] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The interactions between ovarian germ and somatic cells and expression of several intraovarian autocrine/paracrine regulators are major contributing factors in the ovary. These intraovarian mediators regulate various ovarian cellular activities including cell growth, differentiation, and apoptosis, which are critical in follicular development. MicroRNAs (miRNAs) have emerged as key components of posttranscriptional gene expression. Recent evidence generated in mice implicates the regulatory function of miRNAs in oocyte maturation and ovarian follicular development. In the human, miRNAs may target specific gene expression in granulosa cells and participate in establishment and progression of ovarian cancer. Here, we review the currently available information on the expression and potential regulatory functions of miRNAs in the ovary under normal and pathologic conditions. Understanding the underlying mechanisms of how ovarian germ cell and somatic cell miRNAs are regulated and identifying their specific target genes and their functions may lead to the development of strategies to achieve target-specific gene regulation for the prevention and treatment of various ovarian disorders.
Collapse
Affiliation(s)
- Tannaz Toloubeydokhti
- Department of Obstetricsand Gynecology, Division of Reproductive Endocrinology and Infertility, University of Florida, Gainesville, Florida 32610, USA
| | | | | |
Collapse
|
40
|
Noriega-Portella L, Noriega-Hoces L, Delgado A, Rubio J, Gonzales-Castañeda C, Gonzales GF. Effect of letrozole at 2.5 mg or 5.0 mg/day on ovarian stimulation with gonadotropins in women undergoing intrauterine insemination. Fertil Steril 2008; 90:1818-25. [PMID: 18083169 DOI: 10.1016/j.fertnstert.2007.08.060] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2007] [Revised: 08/28/2007] [Accepted: 08/28/2007] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To determine the effect of combined therapy of letrozole (2.5 mg or 5.0 mg) with recombinant follicle-stimulating hormone (FSH) in comparison with the administration of recombinant FSH alone in an intrauterine insemination (IUI) program. DESIGN Retrospective study. SETTING Assisted fertilization program in a specialized infertility center. PATIENT(S) 110 women undergoing IUI and gonadotropin therapy. INTERVENTION(S) Recombinant FSH alone administered from day 3 or combined with letrozole, 2.5 or 5.0 mg/day, on days 3 to 7, and gonadotropins starting on day 7 of the menstrual cycle. Transvaginal ultrasound examinations were done until the dominant follicle reached 18 mm in diameter. Ovulation was triggered with 10,000 IU of human chorionic gonadotropin (hCG), and IUI performed 30 to 40 hours later. MAIN OUTCOME MEASURE(S) Recombinant FSH dose required, number of follicles greater than 14 mm and 18 mm, endometrial thickness, pregnancy rates, miscarriages, and characteristics of newborns. RESULT(S) Women treated with FSH and 5.0 mg/day of letrozole required a lower dose of FSH than the group cotreated with 2.5 mg/day of letrozole or with FSH alone. Throughout most of the follicular phase, the endometrial thickness was statistically significantly less in both letrozole cotreatment groups compared with the FSH control group. By the day of hCG administration, the endometrial thickness was comparable among all the groups. The pregnancy rates were the same with recombinant FSH alone or combined with letrozole. CONCLUSION(S) In terms of cost-effectiveness, 5.0 mg/day of letrozole is more effective than the 2.5 mg/day in cotreatment with no adverse effect on pregnancy rate or outcome.
Collapse
Affiliation(s)
- Luis Noriega-Portella
- PRANOR, Group of Assisted Reproduction, Universidad Peruana Cayetano Heredia, Lima, Peru
| | | | | | | | | | | |
Collapse
|
41
|
Tajima K, Orisaka M, Mori T, Kotsuji F. Ovarian theca cells in follicular function. Reprod Biomed Online 2008; 15:591-609. [PMID: 18028753 DOI: 10.1016/s1472-6483(10)60392-6] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The role of theca cells in every aspect of ovarian follicular function is reviewed. A distinguishing feature of theca cells may be their ability to initiate follicle growth on differentiation from cortical stromal cells, stimulate follicle growth by granulosa cell mitosis through FSH-induced androgen receptor, and cause androgen-stimulated receptor formation of FSH. As LH not only stimulates androgen production by theca cells at tonic levels, but also induces morphological luteinization in addition to androgenesis at surge levels, the dual action concept of LH is proposed. Maturation of the selected dominant follicle and atresia of subordinate antral follicles is interpreted by this concept. Two-way signalling between oocytes and somatic theca cells with growth factors is shown to play a pivotal role in preantral folliculogenesis and atresia. Thus, theca cells have a more significant role in follicular function than previously thought.
Collapse
Affiliation(s)
- Kimihisa Tajima
- Department of Obstetrics and Gynecology, Faculty of Medical Sciences, University of Fukui, 23 Shimoaizuki, Matsuoka, Fukui 910-1193, Japan
| | | | | | | |
Collapse
|
42
|
de Ziegler D, Fraisse T, de Candolle G, Vulliemoz N, Bellavia M, Colamaria S. Outlook: Roles of FSH and LH during the follicular phase: insight into natural cycle IVF. Reprod Biomed Online 2008; 15:507-13. [PMID: 18028740 DOI: 10.1016/s1472-6483(10)60381-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A mounting interest in natural cycle IVF has challenged the medical community to better understand the mechanisms controlling the follicular phase and ovulation in particular, in an effort to optimize this procedure and its outcome. For practical reasons, the advancement of the follicular phase in the menstrual cycle is commonly timed according to the onset of last menses. However, this precludes knowing when the follicular phase truly begins and hampers the possibility of optimizing timing of late follicular-phase events, notably, the triggering of ovulation. Clinicians, therefore, use surrogate markers of follicular maturation, such as oestrogen production and follicular size. Because it is impossible to identify the low-amplitude intercycle basal FSH signal, efforts have reverted toward controlling when it takes place, either with exogenous oestrogen or with oral contraceptives. In the late follicular phase, the occurrence of LH surge results from a balance between the opposite effects of rising oestrogen concentrations, which favour the LH surge, and the opposing effects mediated by the gonadotrophin surge-attenuating factor, a peptide of ovarian origin. This review looks into the mechanisms that control these two hinges of the follicular phase, the basal FSH signal and LH surge, in the context of optimizing natural cycle IVF.
Collapse
Affiliation(s)
- Dominique de Ziegler
- Joint Division of Reproductive Endocrinology and Infertility, University Hospitals of Geneva and Lausanne, 30 Bd de la Cluse, 1211 Geneva, Switzerland.
| | | | | | | | | | | |
Collapse
|
43
|
Dolmans MM, Yuan WY, Camboni A, Torre A, Langendonckt AV, Martinez-Madrid B, Donnez J. Development of antral follicles after xenografting of isolated small human preantral follicles. Reprod Biomed Online 2008; 16:705-11. [DOI: 10.1016/s1472-6483(10)60485-3] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
44
|
Current World Literature. Curr Opin Obstet Gynecol 2007; 19:289-96. [PMID: 17495648 DOI: 10.1097/gco.0b013e3281fc29db] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|