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Ansari M. Recent strategies to mitigate reproductive aging in male broiler breeders: A review. Anim Reprod Sci 2024; 268:107570. [PMID: 39068813 DOI: 10.1016/j.anireprosci.2024.107570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 07/24/2024] [Accepted: 07/25/2024] [Indexed: 07/30/2024]
Abstract
The continued improvement of genetics, nutrition, and management has resulted in rapid growth, better feed efficiency, and higher meat yield with competitive prices in the broiler industry. Nowadays, however, it is well-documented that productive traits and fertility are negatively correlated, and male broiler breeders are exposed to a fertility decline after 45 wk of age. Considering a low male-to-female ratio in breeder flocks, roosters have a prominent impact on flock fertility. Consequently, strategies to maintain the fertility of male broiler breeders could guarantee the reproductive performance of commercial herds. Understanding reproductive aging demands deep insights into its molecular and physiological mechanisms. Over-weighting, Sertoli and Leydig cell dysfunctions, compromised antioxidant capacity, imbalance in sexual hormones, and epididymal lithiasis are among candidate culprits associated with reproductive aging in roosters. Nutritional and managing strategies have been successfully applied to modulate body weight, improve sperm fatty acid profile and antioxidant status, and boost spermatogenic and steroidogenic pathways. The current review characterizes the physiology and biochemistry of reproductive aging in male broiler breeders and then highlights strategies and their underlying mechanisms to mitigate this failure. In summary, applying one or more of the abovementioned strategies might result in consistent post-peak reproduction and benefit producers in the poultry industry.
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Affiliation(s)
- Mahdi Ansari
- Department of Animal and Poultry Physiology, Faculty of Animal Science, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan 49138-15739, Iran.
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2
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Lee JH, Oh MG, Kim SH. Reconstitution of Caruncle Placenta through the 20α-HSD/Casp-3 Apoptotic Pathway during Early Pregnancy in Bovines. Cells 2022; 12:cells12010162. [PMID: 36611954 PMCID: PMC9818950 DOI: 10.3390/cells12010162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/21/2022] [Accepted: 12/27/2022] [Indexed: 01/03/2023] Open
Abstract
Trophoblast cells of endometrium during bovine pregnancy with different characteristics undergo dynamic changes during uterine remodeling, which can be observed as continuous changes, as P4 secreted by the mother is replaced by placental hormones. In this context, the present study analyzed tissues' morphological changes through uterine apoptosis during early pregnancy. In addition, the expression pattern associated with apoptosis genes and 20α-HSD was determined in the endometrium and caruncle tissues. The localization of 20α-HSD, VEGF, Casp3, and mTOR protein was also determined in endometrium and caruncle during early pregnancy. From around 30 days, caruncle trophoblast cells with very high invasiveness expanded the villus section as the gestation period progressed. The surrounding cells detached and reorganized into new cells. In addition, an analysis of the effect of apoptosis on cell reorganization in the caruncle revealed that the expression of 20α-HSD/Casp-3 signals in the villus section gradually increased from 30 to 90 days. However, on the 30th day, glandular epithelial cells occurred sporadically in the trophoblast cell section. Moreover, the apoptosis of trophoblast cells increased at 90 days. Taken together, the results of the present study show that changes in the uterus during early pregnancy promote changes during later pregnancy by inducing the reorganization through the stimulation of 20α-HSD and Casp-3, promoting uterine and caruncle tissues, unlike cell development mediated by hormone signaling.
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Affiliation(s)
- Ji-Hye Lee
- Institute of Applied Humanimal Science, Hankyong National University, Ansung-si 17579, Republic of Korea
| | - Min-Gee Oh
- General Graduate School of Animal Life Convergence Science, Hankyong National University, Ansung-si 17579, Republic of Korea
| | - Sang-Hwan Kim
- Institute of Applied Humanimal Science, Hankyong National University, Ansung-si 17579, Republic of Korea
- General Graduate School of Animal Life Convergence Science, Hankyong National University, Ansung-si 17579, Republic of Korea
- School of Animal Life Convergence Science, Hankyong National University, Ansung-si 17579, Republic of Korea
- Correspondence:
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Özbek M, Beyaz F, Ergün E, Ergün L, Karaca H, Cabir A, Alesawi YAK. Identification of some calcium binding proteins and neural cell markers in rat testis and epididymis during postnatal development. Andrologia 2022; 54:e14633. [DOI: 10.1111/and.14633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 10/20/2022] [Accepted: 10/24/2022] [Indexed: 11/16/2022] Open
Affiliation(s)
- Mehmet Özbek
- Department of Histology and Embryology, Faculty of Veterinary Medicine Mehmet Akif Ersoy University Burdur Turkey
| | - Feyzullah Beyaz
- Department of Histology and Embryology, Faculty of Veterinary Medicine Erciyes University Kayseri Turkey
| | - Emel Ergün
- Department of Histology and Embryology, Faculty of Veterinary Medicine Ankara University Ankara Turkey
| | - Levent Ergün
- Department of Histology and Embryology, Faculty of Veterinary Medicine Ankara University Ankara Turkey
| | - Harun Karaca
- Department of Histology and Embryology, Faculty of Veterinary Medicine Mehmet Akif Ersoy University Burdur Turkey
| | - Ahmet Cabir
- Department of Histology and Embryology, Faculty of Veterinary Medicine Erciyes University Kayseri Turkey
| | - Yahy Abood Kareem Alesawi
- Department of Histology and Embryology, Faculty of Veterinary Medicine Ankara University Ankara Turkey
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Gao DD, Huang JH, Ding N, Deng WJ, Li PL, Mai YN, Wu JR, Hu M. Mechanosensitive Piezo1 channel in rat epididymal epithelial cells promotes transepithelial K+ secretion. Cell Calcium 2022; 104:102571. [DOI: 10.1016/j.ceca.2022.102571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 03/09/2022] [Accepted: 03/10/2022] [Indexed: 11/28/2022]
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Machado-Neves M. Effect of heavy metals on epididymal morphology and function: An integrative review. CHEMOSPHERE 2022; 291:133020. [PMID: 34848222 DOI: 10.1016/j.chemosphere.2021.133020] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 10/16/2021] [Accepted: 11/19/2021] [Indexed: 05/04/2023]
Abstract
Male fertility has deteriorated over the last decades, and environmental risk factors are among the possible causes of this phenomenon. Pollutants such as heavy metals might accumulate in male reproductive organs to levels that are associated with reproductive disorders. Several studies reported detrimental effects of inorganic arsenic (iAs+3/iAs+5), cadmium (Cd+2), lead (Pb+2), and mercury (Hg+2/CH3Hg+2) on the epididymis, which plays a crucial role in sperm maturation. However, the magnitude of their effects and the consequences on the physiology of the epididymis are still unclear. Therefore, an integrative review with meta-analyses was conducted examining 138 studies to determine how exposure to arsenic, cadmium, lead, and mercury affects epididymal morphology and functions, using primarily murine data from experimental studies as a source. This study showed that exposure to metal(loids) reduced epididymal weight, sperm motility, and sperm number. Inorganic arsenic, cadmium, and lead damaged sperm structures within the epididymal duct. While sodium arsenite, sodium arsenate, and lead acetate generate oxidative stress by an imbalance between ROS production and scavenging, cadmium chloride causes an increase in the pH level of the luminal fluid (from 6.5 to 7.37) that diminishes sperm viability. Inorganic arsenic induced a delay in the sperm transit time by modulating noradrenaline and dopamine secretion. Subacute exposure to heavy metals at concentrations < 0.1 mg L-1 initiates a dyshomeostasis of calcium, copper, iron, and zinc that disturbs sperm parameters and reduces epididymal weight. These alterations worsen with prolonged exposure time and higher doses. Most studies evaluated the effects of concentrations > 1.1 mg L-1 of heavy metals on the epididymis rather than doses with relevant importance for human health risk. This meta-analytical study faced limitations regarding a deeper analysis of epididymis physiology. Hence, several recommendations for future investigations are provided. This review creates a baseline for the comprehension of epididymal toxicology.
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Affiliation(s)
- Mariana Machado-Neves
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Av. P.H. Rolfs, s/n, DBG, Campus Universitário, Viçosa, 36570-900, Minas Gerais, Brasil.
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Shum W, Zhang BL, Cao AS, Zhou X, Shi SM, Zhang ZY, Gu LY, Shi S. Calcium Homeostasis in the Epididymal Microenvironment: Is Extracellular Calcium a Cofactor for Matrix Gla Protein-Dependent Scavenging Regulated by Vitamins. Front Cell Dev Biol 2022; 10:827940. [PMID: 35252193 PMCID: PMC8893953 DOI: 10.3389/fcell.2022.827940] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 01/19/2022] [Indexed: 12/23/2022] Open
Abstract
In the male reproductive tract, the epididymis is an essential organ for sperm maturation, in which sperm cells acquire mobility and the ability to fertilize oocytes while being stored in a protective microenvironment. Epididymal function involves a specialized luminal microenvironment established by the epithelial cells of epididymal mucosa. Low-calcium concentration is a unique feature of this epididymal luminal microenvironment, its relevance and regulation are, however, incompletely understood. In the rat epididymis, the vitamin D-related calcium-dependent TRPV6-TMEM16A channel-coupler has been shown to be involved in fluid transport, and, in a spatially complementary manner, vitamin K2-related γ-glutamyl carboxylase (GGCX)-dependent carboxylation of matrix Gla protein (MGP) plays an essential role in promoting calcium-dependent protein aggregation. An SNP in the human GGCX gene has been associated with asthenozoospermia. In addition, bioinformatic analysis also suggests the involvement of a vitamin B6-axis in calcium-dependent MGP-mediated protein aggregation. These findings suggest that vitamins interact with calcium homeostasis in the epididymis to ensure proper sperm maturation and male fertility. This review article discusses the regulation mechanisms of calcium homeostasis in the epididymis, and the potential role of vitamin interactions on epididymal calcium homeostasis, especially the role of matrix calcium in the epididymal lumen as a cofactor for the carboxylated MGP-mediated scavenging function.
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Affiliation(s)
- Winnie Shum
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China
- Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China
- *Correspondence: Winnie Shum,
| | - Bao Li Zhang
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China
- Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China
- NHC Key Lab of Reproduction Regulation, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Reproduction and Development Institution, Fudan University, Shanghai, China
| | - Albert Shang Cao
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China
| | - Xin Zhou
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China
| | - Su Meng Shi
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China
| | - Ze Yang Zhang
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China
| | - Lou Yi Gu
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China
| | - Shuo Shi
- Shanghai Institute for Advanced Immunochemical Studies, ShanghaiTech University, Shanghai, China
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Gao DY, Zhang BL, Leung MCT, Au SCL, Wong PYD, Shum WWC. Coupling of TRPV6 and TMEM16A in epithelial principal cells of the rat epididymis. J Gen Physiol 2017; 148:161-82. [PMID: 27481714 PMCID: PMC4969799 DOI: 10.1085/jgp.201611626] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2016] [Accepted: 07/13/2016] [Indexed: 01/31/2023] Open
Abstract
Principal cells regulate the ionic environment of the epididymal lumen via unknown mechanisms. Gao et al. use electrophysiological and pharmacological tools to characterize rat principal cells and reveal a TRPV6-mediated calcium conductance and TMEM16A-mediated calcium-activated chloride conductance. The epididymis establishes a congenial environment for sperm maturation and protection. Its fluid is acidic, and the calcium concentration is low and declines along the length of the epididymal tubule. However, our knowledge of ionic currents and mechanisms of calcium homeostasis in rat epididymal epithelial cells remains enigmatic. In this study, to better understand calcium regulation in the epididymis, we use the patch-clamp method to record from single rat cauda epididymal principal cells. We detect a constitutively active Ca2+ current with characteristics that match the epithelial calcium channel TRPV6. Electrophysiological and pharmacological data also reveal a constitutively active calcium-activated chloride conductance (CaCC). Removal of extracellular calcium attenuates not only the TRPV6-like conductance, but also the CaCC. Lanthanide block is time dependent such that the TRPV6-like component is inhibited first, followed by the CaCC. The putative CaCC blocker niflumic acid partially inhibits whole-cell currents, whereas La3+ almost abolishes whole-cell currents in principal cells. Membrane potential measurements reveal an interplay between La3+-sensitive ion channels and those that are sensitive to the specific TMEM16A inhibitor tannic acid. In vivo perfusion of the cauda epididymal tubule shows a substantial rate of Ca2+ reabsorption from the luminal side, which is dose-dependently suppressed by ruthenium red, a putative blocker of epithelial Ca2+ channels and CaCC. Finally, we discover messenger RNA for both TRPV6 and TMEM16A in the rat epididymis and show that their proteins colocalize in the apical membrane of principal cells. Collectively, these data provide evidence for a coupling mechanism between TRPV6 and TMEM16A in principal cells that may play an important role in the regulation of calcium homeostasis in the epididymis.
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Affiliation(s)
- Da Yuan Gao
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Bao Li Zhang
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Matthew C T Leung
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Simon C L Au
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Patrick Y D Wong
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Winnie W C Shum
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
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Liao R, Zhang X, Chen Q, Wang Z, Wang Q, Yang C, Pan Y. Genome-wide association study reveals novel variants for growth and egg traits in Dongxiang blue-shelled and White Leghorn chickens. Anim Genet 2016; 47:588-96. [PMID: 27166871 DOI: 10.1111/age.12456] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/12/2016] [Indexed: 12/12/2022]
Abstract
This study was designed to investigate the genetic basis of growth and egg traits in Dongxiang blue-shelled chickens and White Leghorn chickens. In this study, we employed a reduced representation sequencing approach called genotyping by genome reducing and sequencing to detect genome-wide SNPs in 252 Dongxiang blue-shelled chickens and 252 White Leghorn chickens. The Dongxiang blue-shelled chicken breed has many specific traits and is characterized by blue-shelled eggs, black plumage, black skin, black bone and black organs. The White Leghorn chicken is an egg-type breed with high productivity. As multibreed genome-wide association studies (GWASs) can improve precision due to less linkage disequilibrium across breeds, a multibreed GWAS was performed with 156 575 SNPs to identify the associated variants underlying growth and egg traits within the two chicken breeds. The analysis revealed 32 SNPs exhibiting a significant genome-wide association with growth and egg traits. Some of the significant SNPs are located in genes that are known to impact growth and egg traits, but nearly half of the significant SNPs are located in genes with unclear functions in chickens. To our knowledge, this is the first multibreed genome-wide report for the genetics of growth and egg traits in the Dongxiang blue-shelled and White Leghorn chickens.
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Affiliation(s)
- R Liao
- Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China.,Institute of Animal Husbandry and Veterinary Research, Shanghai Academy of Agricultural Sciences, Shanghai, 201106, China
| | - X Zhang
- Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China.,Shanghai Key Laboratory of Veterinary Biotechnology, Shanghai, 200240, China
| | - Q Chen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650093, Yunnan, China
| | - Z Wang
- Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Q Wang
- Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China.,Shanghai Key Laboratory of Veterinary Biotechnology, Shanghai, 200240, China
| | - C Yang
- Institute of Animal Husbandry and Veterinary Research, Shanghai Academy of Agricultural Sciences, Shanghai, 201106, China.
| | - Y Pan
- Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China. .,Shanghai Key Laboratory of Veterinary Biotechnology, Shanghai, 200240, China.
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Klein DM, Wright SH, Cherrington NJ. Xenobiotic transporter expression along the male genital tract. Reprod Toxicol 2014; 47:1-8. [PMID: 24814985 DOI: 10.1016/j.reprotox.2014.04.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 04/11/2014] [Accepted: 04/29/2014] [Indexed: 12/18/2022]
Abstract
The male genital tract plays an important role in protecting sperm by forming a distinct compartment separate from the body which limits exposure to potentially toxic substrates. Transporters along this tract can influence the distribution of xenobiotics into the male genital tract through efflux back into the blood or facilitating the accumulation of toxicants. The aim of this study was to quantitatively determine the constitutive mRNA expression of 30 xenobiotic transporters in caput and cauda regions of the epididymis, vas deferens, prostate, and seminal vesicles from adult Sprague-Dawley rats. The epididymis was found to express at least moderate levels of 18 transporters, vas deferens 15, seminal vesicles 23, and prostate 18. Constitutive expression of these xenobiotic transporters in the male genital tract may provide insight into the xenobiotics that can potentially be transported into these tissues and may provide the molecular mechanism for site specific toxicity of select agents.
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Affiliation(s)
- David M Klein
- University of Arizona, Department of Pharmacology and Toxicology, Tucson, AZ 85721, United States
| | - Stephen H Wright
- University of Arizona, Department of Physiology, Tucson, AZ 85721, United States
| | - Nathan J Cherrington
- University of Arizona, Department of Pharmacology and Toxicology, Tucson, AZ 85721, United States.
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