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Eslamizadeh E, Mabudi H, Roomiani L, Javaheri Baboli M, Chelehmal Dezfulnejad M. Effects of thyroxin and luteinizing hormone releasing hormone on reproductive physiology of Rohu (Labeo rohita): Insights into spawning performance, oocyte maturation, steroidogenesis, and follicular development genes. Anim Reprod Sci 2024; 267:107542. [PMID: 38954933 DOI: 10.1016/j.anireprosci.2024.107542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 06/14/2024] [Accepted: 06/20/2024] [Indexed: 07/04/2024]
Abstract
As the global aquaculture industry grows, attention is increasingly turning towards assisted reproductive technologies. In this study, we examined the impact of D-Ala6, Pro9-Net-mGnRH (LHRHa: 0.4 mL/kg) and two doses (1 and 10 μg/kg fish) of thyroxin (T4) administered through a single injection on oocyte maturation, spawning performance, sex steroid hormone levels, as well as the expression of genes related to steroidogenesis and follicle development (ZP2, Cyp19a1a and SF-1) in Rohu (Labeo rohita). The study found that untreated female Rohu did not spawn, while those treated with LHRHa and thyroxin ovulated and spawned across a hormonal gradient. The highest spawning success was observed with a thyroxin dosage of 10 µg/kg (no significant change with a dose of 1 μg/kg), and female latency period decreased with increasing dosage. Additionally, females treated with thyroxin exhibited significantly higher fecundity than other experimental groups. Treatment with LHRHa and two doses of thyroxin significantly increased the gonadal somatic index compared to the control and sham groups. Hormonal treatment also led to increased fertilization success, hatching rate, and larval survival. At 12 h post-injection, females treated with thyroxin exhibited a significant decline in estradiol levels and expression of Zp2, Cyp19a1a, and SF-1 compared to other experimental groups. Levels of DHP significantly increased across the hormonal gradient. Histological analyses supported a steroidogenic shift, where oocyte maturation was accelerated by hormone administration, particularly with both doses of thyroxin. In conclusion, the findings suggest that thyroxin is a recommended treatment for assisted reproduction of Rohu due to its ability to induce spawning, increase fecundity and improve larval survival.
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Affiliation(s)
- Ehsan Eslamizadeh
- Department of Fisheries, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
| | - Hadideh Mabudi
- Department of Fisheries, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.
| | - Laleh Roomiani
- Department of Fisheries, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
| | | | - Mojdeh Chelehmal Dezfulnejad
- Department of Fisheries, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran; Aquaculture Research Center, Department of Fisheries, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
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Zhang M, Wilson SS, Casey KM, Thomson PE, Zlatow AL, Langlois VS, Green SL. Degenerative Osteoarthropathy in Laboratory Housed Xenopus (Silurana) tropicalis. Comp Med 2021; 71:512-520. [PMID: 34794532 DOI: 10.30802/aalas-cm-21-000061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
In this case study, 15 adult laboratory Xenopus (Silurana) tropicalis (7 adult males and 8 adult females) were examined for nodular enlargements of the clawed digits (digits 0, I, II, and III) on the hind feet. Radiographs showed smoothly margined, rounded, peripherally mineralized lesions arising from the distal phalanges of digits 0-III with osteoproductive and osteolytic components in all frogs. Micro computed tomography (microCT) scans further revealed interphalangeal (IP), metacarpophalangeal (MCP), and metatarsophalangeal (MTP) joint osteoarthritis characterized by periarticular new bone formation, rounded mineral foci both peripherally and centrally within the joints, and more rarely, linear mineralization palmar/plantar to the joints in the flexor tendons. In the nonclawed digits, the shape of the distal phalanx was variably distorted and both subluxation and malangulation of IP joints were identified. Histologically, nodules corresponded to a peripheral rim of mature cortical bone surrounding central adipose tissue, scattered hematopoietic elements, and residual bone of the distal phalanx. Occasionally, the peripheral rim of cortical bone extended proximally to encompass the distal aspect of adjacent phalanx. MCP, MTP and IP joint spaces of most digits exhibited widespread osteoarthritis characterized by periarticular cartilaginous or osseous metaplasia, bony remodeling, and less frequently, granulomatous osteomyelitis. Nutritional analyses of the feed did not indicate imbalances nor were the lesions consistent with metabolic bone disease. The exact etiopathogenesis of these lesions is unknown; however, we hypothesize that the osteoarthritic changes are due to a combination of the frogs' mature age, the unique structure of the Xenopus spp. claw, genetics and biomechanical forces on the digits and distal phalanges of the hind feet.
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Affiliation(s)
- Mingyun Zhang
- Department of Comparative Medicine, Stanford University School of Medicine, Stanford, California
| | - Sabrina S Wilson
- Diagnostic Imaging Service, William R. Pritchard Veterinary Medical Teaching Hospital, School of Veterinary Medicine, University of California-Davis, Davis, California
| | - Kerriann M Casey
- Department of Comparative Medicine, Stanford University School of Medicine, Stanford, California
| | - Paisley E Thomson
- Institut National de la Recherche Scientifique (INRS) - Centre Eau Terre Environnement, Quebec, QC, Canada
| | - Anne L Zlatow
- Department of Comparative Medicine, Stanford University School of Medicine, Stanford, California
| | - Valerie S Langlois
- Institut National de la Recherche Scientifique (INRS) - Centre Eau Terre Environnement, Quebec, QC, Canada
| | - Sherril L Green
- Department of Comparative Medicine, Stanford University School of Medicine, Stanford, California;,
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Oghbaei H, Fattahi A, Hamidian G, Sadigh-Eteghad S, Ziaee M, Mahmoudi J. A closer look at the role of insulin for the regulation of male reproductive function. Gen Comp Endocrinol 2021; 300:113643. [PMID: 33017586 DOI: 10.1016/j.ygcen.2020.113643] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 09/16/2020] [Accepted: 09/28/2020] [Indexed: 11/25/2022]
Abstract
While insulin demonstrates to have a considerable influence on the reproductive system, there are various unanswered questions regarding its precise sites, mechanisms of action, and roles for the developing and functioning of the adult male reproductive system. Apart from its effects on glucose level, insulin has an important role in the reproductive system directly by binding on insulin and IGF receptors in the brain and testis. To date, however, the effect of insulin or its alterations on blood-testis-barrier, as an important regulator of normal spermatogenesis and fertility, has not yet been studied. This review aimed to focus on the experimental and clinical studies to describe mechanisms by which insulin affects the hypothalamic-pituitary-gonadal (HPG) axis, testicular cells, spermatozoa, and sexual behavior. Moreover, we discussed the mechanism and impact of insulin changes in type 1 (insulin deficiency along with persisted or even increased sensitivity) and 2 (insulin resistance along with increased insulin level at the early stages of disease) diabetes and obesity on the male reproductive tract.
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Affiliation(s)
- Hajar Oghbaei
- Department of Physiology, Tabriz University of Medical Sciences, Tabriz, Iran; Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Fattahi
- Department of Reproductive Biology, School of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - GholamReza Hamidian
- Department of Basic Sciences, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
| | - Saeed Sadigh-Eteghad
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mojtaba Ziaee
- Medicinal Plants Research Center, Maragheh University of Medical Sciences, Maragheh, Iran
| | - Javad Mahmoudi
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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Yuan Z, Shen X, Yan H, Jiang J, Liu B, Zhang L, Wu Y, Liu Y, Liu Q. Effects of the Thyroid Endocrine System on Gonadal Sex Ratios and Sex-Related Gene Expression in the Pufferfish Takifugu rubripes. Front Endocrinol (Lausanne) 2021; 12:674954. [PMID: 34025585 PMCID: PMC8139168 DOI: 10.3389/fendo.2021.674954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 04/20/2021] [Indexed: 12/02/2022] Open
Abstract
To examine the effect and mechanism of thyroid hormone on gonadal sex differentiation, Takifugu rubripes larvae were treated with goitrogen (methimazole, MET, 1000 g/g), and thyroxine (T4, 2nM) from 25 to 80 days after hatching (dah). Gonadal histology and sex ratios of fish were then determined at 80 dah. MET treatment induced masculinization, but T4 treatment did not induce feminization in T. rubripes larvae. Transcriptomic analysis of gonads at 80 dah was then conducted. Among the large number of differentially expressed genes between the groups, the expression of foxl2, cyp19a1a, and dmrt1 was altered. The expression of foxl2, cyp19a1a, dmrt1 and gsdf at 25, 40, 55 days after treatment (dat) was further analyzed by qPCR. MET treatment suppressed the expression of foxl2 and cyp19a1a, and induced the expression of dmrt1 in genetic females (p < 0.05). Additionally, T4 treatment induced an increase in the expression of cyp19a1a in genetic XY gonads only at 25 dat. However, the increase in cyp19a1a expression did not continue to 40 and 55 dat. This may explain why feminization of larvae was not found in the T4-treated group. Thus, the present study provides the first evidence that MET treatment causes masculinization in teleost fish. The effects of MET-induced masculinization in T. rubripes may act primarily via suppression of the expression of foxl2 and cyp19a1a, and stimulation of the expression of dmrt1. Moreover, the effects of higher concentrations of T4 or different concentrations of T3, on sex differentiation require further testing.
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Affiliation(s)
- Zhen Yuan
- College of Fisheries and Life Science, Dalian Ocean University, Dalian, China
- Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian, China
| | - Xufang Shen
- Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian, China
- College of Life Science, Liaoning Normal University, Dalian, China
| | - Hongwei Yan
- College of Fisheries and Life Science, Dalian Ocean University, Dalian, China
- Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian, China
- *Correspondence: Hongwei Yan, ; Qi Liu,
| | - Jieming Jiang
- College of Fisheries and Life Science, Dalian Ocean University, Dalian, China
- Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian, China
| | - Binwei Liu
- College of Fisheries and Life Science, Dalian Ocean University, Dalian, China
- Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian, China
| | - Lei Zhang
- Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian, China
- College of Marine Science and Environment Engineering, Dalian Ocean University, Dalian, China
| | - Yumeng Wu
- College of Fisheries and Life Science, Dalian Ocean University, Dalian, China
- Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian, China
| | - Ying Liu
- Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian, China
- College of Marine Science and Environment Engineering, Dalian Ocean University, Dalian, China
| | - Qi Liu
- Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian, China
- College of Marine Science and Environment Engineering, Dalian Ocean University, Dalian, China
- *Correspondence: Hongwei Yan, ; Qi Liu,
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Li Y, Xu A, Jia S, Huang J. Recent advances in the molecular mechanism of sex disparity in hepatocellular carcinoma. Oncol Lett 2019; 17:4222-4228. [PMID: 30988804 DOI: 10.3892/ol.2019.10127] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 01/25/2019] [Indexed: 12/11/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is more frequently observed and aggressive in men compared with women. Increasing evidence demonstrates that the sex disparity appears to be mediated by the stimulatory effects of androgens and the protective effects of estrogen in the development and progression of HCC. In the past few decades, studies on the sex difference of HCC mainly focused on the effect of sex hormones on the transactivation of hepatitis B virus X protein and the release of inflammatory cytokines, and these studies have further intensified in recent years. Sex hormones are also involved in genetic alterations and DNA damage repair in hepatocytes through binding to their specific cellular receptors and affecting the corresponding signaling pathways. Furthermore, the theory of sex chromosomes participating in HCC has been considered. The present review discussed the recent advances in the molecular mechanisms of sex disparity in HCC, with the aim of improving the understanding of the underlying critical factors and exploring more effective methods for the prevention and treatment of HCC.
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Affiliation(s)
- Yanmeng Li
- Experimental Center, Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China.,National Clinical Research Center for Digestive Disease, Beijing 100050, P.R. China
| | - Anjian Xu
- Experimental Center, Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China.,National Clinical Research Center for Digestive Disease, Beijing 100050, P.R. China
| | - Siyu Jia
- Experimental Center, Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China.,National Clinical Research Center for Digestive Disease, Beijing 100050, P.R. China
| | - Jian Huang
- Experimental Center, Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China.,National Clinical Research Center for Digestive Disease, Beijing 100050, P.R. China
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Campbell DEK, Langlois VS. Thyroid hormones and androgens differentially regulate gene expression in testes and ovaries of sexually mature Silurana tropicalis. Gen Comp Endocrinol 2018; 267:172-182. [PMID: 29990494 DOI: 10.1016/j.ygcen.2018.07.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 05/05/2018] [Accepted: 07/03/2018] [Indexed: 02/04/2023]
Abstract
A series of ex vivo exposures using testicular and ovarian tissues of sexually mature Western clawed frogs (Silurana tropicalis) were designed to examine molecular mechanisms of thyroid hormone (TH) and androgen crosstalk sans hypophyseal feedback as well as investigate potential sex-specific differences. Tissues were exposed ex vivo to either triiodothyronine (T3), iopanoic acid (IOP), one co-treatment of IOP + 5α-dihydrotestosterone (5α-DHT), 5α-DHT, 5β-dihydrotestosterone (5β-DHT), or testosterone (T). Direct exposure to different androgens led to androgen specific increases in thyroid receptor and deiodinase transcripts in testes (trβ and dio1) but a decrease in expression in ovaries (trβ and dio3), suggesting that male and female frogs can be differently affected by androgenic compounds. Moreover, exposure to select androgens differentially increased estrogen-related transcription (estrogen receptor alpha (erα) and aromatase (cyp19)) and production (estradiol) in ovaries and testes indicating the activation of alternate metabolic pathways yielding estrogenic metabolites. Sex-steroid-related transcription (i.e., steroid 5α-reductase type 2 (srd5α2) and erα) and production (i.e., 5α-DHT) were also differentially regulated by THs. The presence and frequency of transcription factor binding sites in the putative promoter regions of TH- and sex steroid-related genes were also examined in S. tropicalis, rodent, and fish models using in silico analysis. In summary, this study provides an improved mechanistic understanding of TH- and androgen-mediated actions and reveals differential transcriptional effects as a function of sex in frogs.
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Affiliation(s)
- D E K Campbell
- Biology Department, Queen's University, Kingston, ON, Canada
| | - V S Langlois
- Biology Department, Queen's University, Kingston, ON, Canada; Institut national de la recherche scientifique (INRS) - Centre Eau Terre Environnement, Quebec City, QC, Canada; Department of Chemistry and Chemical Engineering, Royal Military College of Canada, Kingston, ON, Canada.
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