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Viana Neto AM, Guerreiro DD, Martins JAM, Vasconcelos FÁR, Melo RÉBF, Velho ALMCS, Neila-Montero M, Montes-Garrido R, Nagano CS, Araújo AA, Moura AA. Sperm traits and seminal plasma proteome of locally adapted hairy rams subjected to intermittent scrotal insulation. Anim Reprod Sci 2024; 263:107439. [PMID: 38447240 DOI: 10.1016/j.anireprosci.2024.107439] [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: 10/14/2023] [Accepted: 02/16/2024] [Indexed: 03/08/2024]
Abstract
The present study evaluated the effects of heat stress on reproductive parameters of hairy rams. Six animals were subjected to scrotal insulation during four consecutive nights (6 PM - 6 AM). Day (D) 0 was the first day of insulation. Scrotal circumference increased from 30.5 ± 0.3 cm (at pre-insulation) to 31.8 ± 0.4 cm on D4, decreased 3.9 cm on D28, returning to 30.6 ± 0.6 cm on D57. Sperm concentration decreased from 3.7 ± 0.12 ×109 sperm/mL before insulation to 2.6 ± 0.1 ×109 on D23, returning to normal on D57. Sperm motility averaged 75 ± 2.9% before insulation, was undetectable on D23, and became normal on D77. Sperm with normal morphology reached 5.9 ± 2.6% on D35 but recovered (86.8 ± 2.1%) on D91. Sperm DNA integrity decreased from 86.5 ± 4.7% before insulation to 11.1 ± 3.7% on D63, returning to pre-insulation values on D120. Sperm BSP immunostaining was reduced after scrotal insulation. Variations in seminal protein abundances coincided with changes in sperm parameters. Seminal plasma superoxide dismutase, carboxypeptidase Q-precursor and NPC intracellular cholesterol transporter 2 decreased on D18, returning to normal after D28. Albumin, inhibitor of carbonic anhydrase precursor, EGF-like repeat and discoid I-like domain-containing protein 3 and polymeric immunoglobulin receptor increased after insulation. In summary, intermittent scrotal insulation drastically altered ram sperm attributes and seminal proteins, especially those associated with oxidative stress. Knowledge of animal´s response to thermal stress is vital in the scenario of climate changes.
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Affiliation(s)
| | - Denise D Guerreiro
- Department of Animal Science, Federal University of Ceará, Fortaleza, Brazil
| | - Jorge A M Martins
- School of Veterinary Medicine, Federal University of Cariri, Juazeiro do Norte, Brazil
| | | | - R Évila B F Melo
- Department of Animal Science, Federal University of Ceará, Fortaleza, Brazil
| | | | - Marta Neila-Montero
- Itra-ULE, Animal Reproduction and Obstetrics, Department of Veterinary Medicine, Surgery and Anatomy, University of León, León, Spain
| | - Rafael Montes-Garrido
- Itra-ULE, Animal Reproduction and Obstetrics, Department of Veterinary Medicine, Surgery and Anatomy, University of León, León, Spain
| | - Celso S Nagano
- Department of Fisheries Engineering, Federal University of Ceará, Fortaleza, Brazil
| | - Airton A Araújo
- Department of Animal Science, Federal University of Ceará, Fortaleza, Brazil; School of Veterinary Medicine, Ceará State University, Fortaleza, Brazil
| | - Arlindo A Moura
- Department of Animal Science, Federal University of Ceará, Fortaleza, Brazil.
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Ben Moula A, Moussafir Z, Hamidallah N, El Amiri B. Heat stress and ram semen production and preservation: Exploring impacts and effective strategies. J Therm Biol 2024; 119:103794. [PMID: 38330855 DOI: 10.1016/j.jtherbio.2024.103794] [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: 04/11/2023] [Revised: 01/12/2024] [Accepted: 01/12/2024] [Indexed: 02/10/2024]
Abstract
As global warming persists, heat stress (HS) continues to affect animals, particularly those raised in extensive systems such as sheep. As a result, there is a growing body of research investigating the physiological and biological consequences of HS on these animals. Recent studies have specifically examined the effects of climate change, global warming, and HS on gametes. Heat stress has been shown to affect ram semen production, resulting in decreased sperm quality and volume in both fresh and stored samples. This is attributed to the effect of heat on hormone production in the testicles, which is critical for successful spermatogenesis. Such effects can have significant consequences on the fertility of female sheep, which could affect the farmers' revenue. Therefore, farmers and researchers are utilizing various strategies and laboratory techniques to mitigate these negative effects. This review aims to comprehensively evaluate the impact of HS on ram semen production and conservation and analyze the different mitigation strategies at various levels, including management and nutritional interventions. The findings of this review will serve as a critical foundation for the development of targeted interventions and sustainable practices in sheep farming, ensuring resilient and profitable operations in the face of ongoing global climate challenges.
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Affiliation(s)
- Anass Ben Moula
- Department of Life Sciences, Polydisciplinary Faculty of Larache, Abdelmalek Essaadi University, 745 BP, 92004, Larache, Morocco.
| | - Zineb Moussafir
- Faculty of Science and Technology, Errachidia, Moulay Ismail University, Meknes, Morocco
| | - Naima Hamidallah
- Faculty of Science and Technology, Hassan 1 University, BP 577, 26000, Settat, Morocco
| | - Bouchra El Amiri
- INRA-Regional Center for Agronomic Research of Settat, BP589, Settat, Morocco; African Sustainable Agriculture Research Institute (ASARI), Mohammed VI Polytechnic University (UM6P), 70000, Laayoune, Morocco
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Chacón LJ, Yepes GD, Cardozo J, Rueda F, Castillo V, Torres A, Martins J, Ardila A. Seminal Plasma Proteins Associated with The Fertility of Brahman Bulls in The Colombian Low Tropics. Trop Life Sci Res 2023; 34:259-277. [PMID: 37860088 PMCID: PMC10583850 DOI: 10.21315/tlsr2023.34.3.14] [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: 10/27/2022] [Accepted: 04/10/2023] [Indexed: 10/21/2023] Open
Abstract
The sperm interacts with seminal plasma proteins during its transport through the female reproductive tract to reach the oocyte. Seminal plasma proteins have been associated as biomarkers of fertility in bovine males, while two-dimensional electrophoresis in polyacrylamide gels under denaturing conditions (2D-PAGE) is a useful technique for their separation, allowing their subsequent analysis with the aid of specialised software. Brahman bulls are known for their tolerance to tropical conditions such as low-quality pastures, high temperatures, and relative humidity as well as moderate resistance to infestations by parasites and insects. The present study describes the two-dimensional electrophoretic profiles of the seminal plasma proteins in the rainy and dry seasons, associating them with the fertility of Brahman bulls in the Colombian Orinoquía in a 90-days breeding season and a single-sire mating system (1 bull per 50 Brahman cows) with 60 consecutive days of rest. The fertility-related seminal plasma protein spots increased in the dry season. Likewise, a meaningful relationship was found between the protein spots that possibly coincide with the Binder of Sperm Proteins. It was also found that bulls with the highest percentages of pregnancy also had similarities in their 2D seminal plasma maps. We conclude that the seminal plasma protein profile of Brahman bulls raised in the Colombian low tropic changes between rainy and dry seasons, and such changes may influence the reproductive performance of those animals.
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Affiliation(s)
- Liliana J. Chacón
- Faculty of Agricultural Science, University of La Salle, Bogota, Colombia
| | - Germán D. Yepes
- Faculty of Agricultural Science, University of La Salle, Bogota, Colombia
| | - Jaime Cardozo
- Colombian Agricultural Research Corporation (AGROSAVIA), Tropical Reproduction Group. Kilometer 14 Via Bogotá-Mosquera, Cundinamarca, Colombia
| | - Fabian Rueda
- Colombian Agricultural Research Corporation (AGROSAVIA), Tropical Reproduction Group. Kilometer 14 Via Bogotá-Mosquera, Cundinamarca, Colombia
| | - Viviana Castillo
- Colombian Agricultural Research Corporation (AGROSAVIA), Tropical Reproduction Group. Kilometer 14 Via Bogotá-Mosquera, Cundinamarca, Colombia
| | - Andrés Torres
- Faculty of Agricultural Science, University of La Salle, Bogota, Colombia
| | - Jorge Martins
- Centre for Agricultural Sciences and Biodiversity, Federal University of Cariri, Rua Icaro de Sousa Moreira, 126, Crato, Ceará, Brazil
| | - Ariosto Ardila
- Faculty of Agricultural Science, University of La Salle, Bogota, Colombia
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Tang W, Xu QH, Chen X, Guo W, Ao Z, Fu K, Ji T, Zou Y, Chen JJ, Zhang Y. Transcriptome sequencing reveals the effects of circRNA on testicular development and spermatogenesis in Qianbei Ma goats. Front Vet Sci 2023; 10:1167758. [PMID: 37180060 PMCID: PMC10172654 DOI: 10.3389/fvets.2023.1167758] [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: 02/16/2023] [Accepted: 04/04/2023] [Indexed: 05/15/2023] Open
Abstract
Circular RNAs (circRNAs) play an important role in regulating the mammalian reproductive system, especially testicular development and spermatogenesis. However, their functions in testicular development and spermatogenesis in the Qianbei Ma goat, the Guizhou endemic breed are still unclear. In this study, tissue sectioning and circRNAs transcriptome analysis were conducted to compare the changes of morphology and circular RNAs gene expression profile at four different developmental stages (0Y, 0-month-old; 6Y, 6-month-old; 12Y, 12-month-old; 18Y, 18-month-old). The results showed that the circumferences and area of the seminiferous tubule gradually increased with age, and the lumen of the seminiferous tubule in the testis differentiated significantly. 12,784 circRNAs were detected from testicular tissues at four different developmental stages by RNA sequencing, and 8,140 DEcircRNAs (differentially expressed circRNAs) were found in 0Y vs. 6Y, 6Y vs. 12Y, 12Y vs. 18Y and 0Y vs. 18Y, 0Y vs. 12Y, 6Y vs. 18Y Functional enrichment analysis of the source genes showed that they were mainly enriched in testicular development and spermatogenesis. In addition, the miRNAs and mRNAs associated with DECircRNAs in 6 control groups were predicted by bioinformatics, and 81 highly expressed DECircRNAs and their associated miRNAs and mRNAs were selected to construct the ceRNA network. Through functional enrichment analysis of the target genes of circRNAs in the network, some candidate circRNAs related to testicular development and spermatogenesis were obtained. Such as circRNA_07172, circRNA_04859, circRNA_07832, circRNA_00032 and circRNA_07510. These results will help to reveal the mechanism of circRNAs in testicular development and spermatogenesis, and also provide some guidance for goat reproduction.
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Affiliation(s)
- Wen Tang
- College of Life Science, Guizhou University, Guiyang, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, China
| | - Qiang Hou Xu
- College of Life Science, Guizhou University, Guiyang, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Guiyang, China
- College of Animal Science, Guizhou University, Guiyang, China
- *Correspondence: Qiang Hou Xu,
| | - Xiang Chen
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Guiyang, China
- College of Animal Science, Guizhou University, Guiyang, China
- Xiang Chen,
| | - Wei Guo
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Guiyang, China
- College of Animal Science, Guizhou University, Guiyang, China
| | - Zheng Ao
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Guiyang, China
- College of Animal Science, Guizhou University, Guiyang, China
| | - Kaibin Fu
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Guiyang, China
- College of Animal Science, Guizhou University, Guiyang, China
| | - Taotao Ji
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Guiyang, China
- College of Animal Science, Guizhou University, Guiyang, China
| | - Yue Zou
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Guiyang, China
- College of Animal Science, Guizhou University, Guiyang, China
| | - Jing Jia Chen
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Guiyang, China
- College of Animal Science, Guizhou University, Guiyang, China
| | - Yuan Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Guiyang, China
- College of Animal Science, Guizhou University, Guiyang, China
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Liang J, Lv C, Xiang D, Zhang Y, Zhang B, Raza SHA, Wu G, Quan G. The establishment of goat semen protein profile using a tandem mass tag-based proteomics approach. Res Vet Sci 2022; 150:22-32. [DOI: 10.1016/j.rvsc.2022.05.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 03/15/2022] [Accepted: 05/20/2022] [Indexed: 11/16/2022]
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Effects of Heat Stress on Motion Characteristics and Metabolomic Profiles of Boar Spermatozoa. Genes (Basel) 2022; 13:genes13091647. [PMID: 36140814 PMCID: PMC9498559 DOI: 10.3390/genes13091647] [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: 08/02/2022] [Revised: 09/04/2022] [Accepted: 09/09/2022] [Indexed: 11/19/2022] Open
Abstract
Heat stress (HS) commonly causes boar infertility and economic loss in the swine industry. The heat tolerance of boar semen presents obvious differences among individuals. However, whether heat stress affects motion characteristics and the metabolome profile in boar sperm remains unclear. In this study, the kinetic features of sperm from HS and non-HS (NHS) groups were detected by computer-assisted sperm analysis, and metabolomic profiling was performed by liquid chromatography−mass spectrometry. The results showed that heat stress significantly reduced sperm motility, average path distance (APD), straight-line velocity (VSL), straightness (STR), and linearity (LIN) (p < 0.05). A total of 528 and 194 metabolites in sperm were identified in the positive and negative ion modes, respectively. Lipids and lipid-like molecules, and organic acids and derivatives were major metabolic classes in the two modes. Furthermore, we separately identified 163 and 171 differential metabolites in the two modes between HS and NHS groups. Clustering analysis further revealed significant metabolic changes in sperm after heat stress. The Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis showed that differential metabolites in the two modes were enriched in glycerophospholipid, choline, and alanine, aspartate, and glutamate and lysine metabolism. Taken together, these results demonstrate that heat stress can alter the motion characteristics and metabolomic profiles of boar sperm.
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Efficiency of Artificial Insemination at Natural Estrus in Organic Churra Ewes. Vet Sci 2022; 9:vetsci9070370. [PMID: 35878387 PMCID: PMC9319334 DOI: 10.3390/vetsci9070370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/04/2022] [Accepted: 07/15/2022] [Indexed: 11/17/2022] Open
Abstract
Simple Summary Hormonal treatments used to synchronize estrus in sheep artificial insemination procedures can cause several physiological problems that can affect negatively fertility and animal health; however, alternative protocols based on the detection of natural estrus offer a more sustainable option while reaching successful fertility results. Therefore, in this study, an artificial insemination protocol at natural estrus in organic Churra sheep was performed. In the protocol design phase, 125 ewes were exocervically inseminated, and their fertility was assessed based on the number of inseminations, physiological state, body condition, estrus detection–insemination interval and vaginal fluids in cervix. That protocol was repeated in six consecutive years. In all ewes, fertilities based on the timing of insemination after estrus detection were very high. Lactating ewes produced better results than did dry ewes, which was probably because of the better feeding of the former. In addition, double insemination increased the fertility of ewes, whose estrus was detected within 16 h of onset. Body condition and amount of vaginal fluid were correlated with fertility. In conclusion, exocervical inseminations at natural estrus can produce acceptable fertility and prolificity in Churra ewes, avoiding physiological problems derived from the use of hormonal treatments. Abstract Hormonal treatments used in the artificial insemination (AI) of sheep can cause several physiological problems that can affect negatively fertility and animal health; however, AI protocols based on the detection of natural estrus offer a more sustainable option and can achieve high fertility. In this study, an AI protocol at natural estrus in organic Churra sheep was performed. In the first phase (AI protocol development), 125 ewes were exocervically inseminated, and their fertility was assessed based on the following factors: number of AI, physiological state, body condition, estrus detection–AI interval, and vaginal fluids in cervix. That protocol was repeated for six consecutive years. In all individuals, fertilities based on the timing of insemination after estrus detection were very high. Lactating ewes produced better results than did dry ewes, which was probably because of the better feeding of the former. In addition, double insemination increased the fertility of ewes whose estrus was detected within 16 h of onset. Body condition and amount of vaginal fluid were correlated with fertility. Exocervical inseminations at natural estrus can produce acceptable fertility and prolificity in Churra ewes.
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Extracellular vesicles from seminal plasma improved development of in vitro-fertilized mouse embryos. ZYGOTE 2022; 30:619-624. [PMID: 35730539 DOI: 10.1017/s0967199422000041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
In vitro fertilization (IVF) has wide application in human infertility and animal breeding. It is also used for research on reproduction, fertility and development. However, IVF embryos are still inferior to their in vivo counterparts. Some substances in seminal plasma appear to have important roles in embryo development, and during the traditional IVF procedure, the seminal plasma is washed away. In this study, extracellular vesicles (EVs) were concentrated from seminal plasma by ultracentrifugation, visualized using transmission electron microscopy, and particle size distributions and concentrations were determined with a NanoSight particle analyzer. We found particles of various sizes in the seminal plasma, the majority having diameters ranging from 100 to 200 nm and concentrations of 6.07 × 1010 ± 2.91 × 109 particles/ml. Addition of seminal plasma EVs (SP-EVs) to the IVF medium with mouse oocytes and sperm significantly increased the rate of blastocyst formation and the inner cell mass (ICM)/trophectoderm (TE) cell ratio, and reduced the apoptosis of blastocysts. Our findings provide new insights into the role of seminal plasma EVs in mediating embryo development and it suggests that SP-EVs may be used to improve the developmental competence of IVF embryos, which has important significance for assisted reproduction in animals and humans.
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Factors influencing seminal plasma composition and its relevance to succeed sperm technology in sheep: an updated review. Small Rumin Res 2022. [DOI: 10.1016/j.smallrumres.2022.106759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Exogenous gonadotropin-releasing hormone counteracts the adverse effect of scrotal insulation on testicular functions in bucks. Sci Rep 2022; 12:7869. [PMID: 35551262 PMCID: PMC9098548 DOI: 10.1038/s41598-022-11884-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 04/29/2022] [Indexed: 11/08/2022] Open
Abstract
This study determined the effects of scrotal insulation on testicular functions in bucks and evaluated the impact of exogenous gonadotropin-releasing hormone (GnRH) administration before scrotal insulation on sperm production and testicular vascular dynamics. Twelve bucks were randomly divided into three groups: scrotal-insulated animals without GnRH treatment (INS), scrotal-insulated animals treated previously with GnRH (GnRH + INS), and animals without insulation as controls (CON). Doppler ultrasonography was used to evaluate testicular vascular changes, and semen samples were collected to assess seminal parameters. Testicular samples were collected from slaughtered bucks at the end of the experiment for histological investigations and immunohistochemical analysis for caspase 3 (apoptotic marker), and a vascular endothelial growth factor (VEGF; hypoxic marker) evaluation. Sperm motility drastically decreased (33%) in the INS group on day 8 compared with those in the GnRH + INS and CON groups (58% and 85%, respectively). Testicular blood flow significantly decreased for 3 and 2 weeks in the INS and GnRH + INS groups, respectively. The pulsatility index (PI) reached pretreatment values at 5 and 4 weeks after insulation in the INS and GnRH + INS groups, respectively. The resistance index (RI) values increased in both insulated groups for the first 2 weeks and decreased to control values 4 weeks after insulation. However, the maximum velocity (VP) started to increase reaching pretreatment values by the 5th and 3rd weeks after insulation in the INS and GnRH + INS groups, respectively. Histological investigations showed a marked reduction in lipid inclusions in Sertoli cells in the GnRH + INS group compared with those in the INS group. The distributions of both caspase 3 and VEGF decreased in the GnRH + INS group compared with those in the INS group. This study showed that the administration of a single dose of GnRH delayed the negative effects of scrotal insulation on different seminal traits and revealed the pivotal role of GnRH in compensating testicular insulation in bucks.
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Singh SP, Kharche SD, Pathak M, Soni YK, Gururaj K, Sharma AK, Singh MK, Chauhan MS. Temperature response of enriched pre-pubertal caprine male germline stem cells in vitro. Cell Stress Chaperones 2021; 26:989-1000. [PMID: 34553319 PMCID: PMC8578525 DOI: 10.1007/s12192-021-01236-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: 07/20/2021] [Revised: 09/02/2021] [Accepted: 09/03/2021] [Indexed: 11/28/2022] Open
Abstract
The present study aims to evaluate culture temperature-dependent variation in survival, growth characteristics and expression of stress, pluripotency, apoptosis, and adhesion markers in enriched caprine male germline stem cells (cmGSCs). For this, testes from pre-pubertal bucks (4-5 months; n = 4) were used to isolated cells by a two-step enzymatic digestion method. After enrichment of cmGSCs by multiple methods (differential platting, Percoll density gradient centrifugation, and MACS), viability of CD90+ cells was assessed before co-cultured onto the Sertoli cell feeder layer at different temperatures (35.5, 37.0, 38.5, and 40.0 °C). The culture characteristics of cells were compared with MTT assay (viability); cluster-forming activity assay, SA-β1-gal assay (senescence), BrdU assay (proliferation), and transcript expression analyses by qRT-PCR. Moreover, the co-localization of pluripotency markers (UCHL-1, PLZF, and DBA) was examined by a double-immunofluorescence method. The cells grown at 37.0 °C showed faster proliferation with a significantly (p < 0.05) higher number of viable cells and greater number of cell clusters, besides higher expression of pluripotency markers. The transcript expression of HSPs (more noticeably HSP72 than HSP73), anti-oxidative enzymes (GPx and CuZnSOD), and adhesion molecule (β1-integrin) was significantly (p < 0.05) downregulated when grown at 35.0, 38.5, or 40.0 °C compared with 37.0 °C. The expression of pluripotency-specific transcripts was significantly (p < 0.05) lower in cmGSCs grown at the culture temperature lower (35.5 °C) or higher (38.5 °C and 40.0 °C) than 37.0 °C. Overall, the culture temperature significantly affects the proliferation, growth characteristics, and expression of heat stress, pluripotency, and adhesion-specific markers in pre-pubertal cmGSCs. These results provide an insight to develop strategies for the improved cultivation and downstream applications of cmGSCs.
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Affiliation(s)
- Shiva P Singh
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research On Goats, Makhdoom, Farah, 281 122, Mathura, Uttar Pradesh, India.
| | - Suresh D Kharche
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research On Goats, Makhdoom, Farah, 281 122, Mathura, Uttar Pradesh, India
| | - Manisha Pathak
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research On Goats, Makhdoom, Farah, 281 122, Mathura, Uttar Pradesh, India
| | - Yogesh K Soni
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research On Goats, Makhdoom, Farah, 281 122, Mathura, Uttar Pradesh, India
| | - Kumaresan Gururaj
- Animal Health Division, ICAR-Central Institute for Research On Goats, Makhdoom, Farah, 281 122, Mathura, Uttar Pradesh, India
| | - Atul K Sharma
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research On Goats, Makhdoom, Farah, 281 122, Mathura, Uttar Pradesh, India
| | - Manoj K Singh
- Animal Genetics and Breeding Division, ICAR-Central Institute for Research On Goats, Makhdoom, Farah, 281 122, Mathura, Uttar Pradesh, India
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Skerrett-Byrne DA, Nixon B, Bromfield EG, Breen J, Trigg NA, Stanger SJ, Bernstein IR, Anderson AL, Lord T, Aitken RJ, Roman SD, Robertson SA, Schjenken JE. Transcriptomic analysis of the seminal vesicle response to the reproductive toxicant acrylamide. BMC Genomics 2021; 22:728. [PMID: 34625024 PMCID: PMC8499523 DOI: 10.1186/s12864-021-07951-1] [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: 02/26/2021] [Accepted: 08/14/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The seminal vesicles synthesise bioactive factors that support gamete function, modulate the female reproductive tract to promote implantation, and influence developmental programming of offspring phenotype. Despite the significance of the seminal vesicles in reproduction, their biology remains poorly defined. Here, to advance understanding of seminal vesicle biology, we analyse the mouse seminal vesicle transcriptome under normal physiological conditions and in response to acute exposure to the reproductive toxicant acrylamide. Mice were administered acrylamide (25 mg/kg bw/day) or vehicle control daily for five consecutive days prior to collecting seminal vesicle tissue 72 h following the final injection. RESULTS A total of 15,304 genes were identified in the seminal vesicles with those encoding secreted proteins amongst the most abundant. In addition to reproductive hormone pathways, functional annotation of the seminal vesicle transcriptome identified cell proliferation, protein synthesis, and cellular death and survival pathways as prominent biological processes. Administration of acrylamide elicited 70 differentially regulated (fold-change ≥1.5 or ≤ 0.67) genes, several of which were orthogonally validated using quantitative PCR. Pathways that initiate gene and protein synthesis to promote cellular survival were prominent amongst the dysregulated pathways. Inflammation was also a key transcriptomic response to acrylamide, with the cytokine, Colony stimulating factor 2 (Csf2) identified as a top-ranked upstream driver and inflammatory mediator associated with recovery of homeostasis. Early growth response (Egr1), C-C motif chemokine ligand 8 (Ccl8), and Collagen, type V, alpha 1 (Col5a1) were also identified amongst the dysregulated genes. Additionally, acrylamide treatment led to subtle changes in the expression of genes that encode proteins secreted by the seminal vesicle, including the complement regulator, Complement factor b (Cfb). CONCLUSIONS These data add to emerging evidence demonstrating that the seminal vesicles, like other male reproductive tract tissues, are sensitive to environmental insults, and respond in a manner with potential to exert impact on fetal development and later offspring health.
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Affiliation(s)
- David A Skerrett-Byrne
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, University Drive, Callaghan, NSW, 2308, Australia.,Hunter Medical Research Institute, Pregnancy and Reproduction Program, New Lambton Heights, NSW, 2305, Australia
| | - Brett Nixon
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, University Drive, Callaghan, NSW, 2308, Australia.,Hunter Medical Research Institute, Pregnancy and Reproduction Program, New Lambton Heights, NSW, 2305, Australia
| | - Elizabeth G Bromfield
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, University Drive, Callaghan, NSW, 2308, Australia.,Hunter Medical Research Institute, Pregnancy and Reproduction Program, New Lambton Heights, NSW, 2305, Australia.,Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine, Utrecht University, 3584 CM, Utrecht, The Netherlands
| | - James Breen
- The Robinson Research Institute and Adelaide Medical School, University of Adelaide, Adelaide, SA, 5005, Australia.,South Australian Genomics Centre (SAGC), South Australian Health & Medical Research Institute (SAHMRI), Adelaide, SA, 5000, Australia.,Computational & Systems Biology Program, Precision Medicine Theme, South Australian Health & Medical Research Institute (SAHMRI), Adelaide, SA, 5000, Australia.,Adelaide Medical School, Faculty of Health & Medical Sciences, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Natalie A Trigg
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, University Drive, Callaghan, NSW, 2308, Australia.,Hunter Medical Research Institute, Pregnancy and Reproduction Program, New Lambton Heights, NSW, 2305, Australia
| | - Simone J Stanger
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, University Drive, Callaghan, NSW, 2308, Australia.,Hunter Medical Research Institute, Pregnancy and Reproduction Program, New Lambton Heights, NSW, 2305, Australia
| | - Ilana R Bernstein
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, University Drive, Callaghan, NSW, 2308, Australia.,Hunter Medical Research Institute, Pregnancy and Reproduction Program, New Lambton Heights, NSW, 2305, Australia
| | - Amanda L Anderson
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, University Drive, Callaghan, NSW, 2308, Australia.,Hunter Medical Research Institute, Pregnancy and Reproduction Program, New Lambton Heights, NSW, 2305, Australia
| | - Tessa Lord
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, University Drive, Callaghan, NSW, 2308, Australia.,Hunter Medical Research Institute, Pregnancy and Reproduction Program, New Lambton Heights, NSW, 2305, Australia
| | - R John Aitken
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, University Drive, Callaghan, NSW, 2308, Australia.,Hunter Medical Research Institute, Pregnancy and Reproduction Program, New Lambton Heights, NSW, 2305, Australia
| | - Shaun D Roman
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, University Drive, Callaghan, NSW, 2308, Australia.,Hunter Medical Research Institute, Pregnancy and Reproduction Program, New Lambton Heights, NSW, 2305, Australia
| | - Sarah A Robertson
- The Robinson Research Institute and Adelaide Medical School, University of Adelaide, Adelaide, SA, 5005, Australia.,Adelaide Medical School, Faculty of Health & Medical Sciences, University of Adelaide, Adelaide, SA, 5005, Australia
| | - John E Schjenken
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, University Drive, Callaghan, NSW, 2308, Australia. .,Hunter Medical Research Institute, Pregnancy and Reproduction Program, New Lambton Heights, NSW, 2305, Australia.
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13
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Skerrett-Byrne DA, Trigg NA, Bromfield EG, Dun MD, Bernstein IR, Anderson AL, Stanger SJ, MacDougall LA, Lord T, Aitken RJ, Roman SD, Robertson SA, Nixon B, Schjenken JE. Proteomic Dissection of the Impact of Environmental Exposures on Mouse Seminal Vesicle Function. Mol Cell Proteomics 2021; 20:100107. [PMID: 34089863 PMCID: PMC8250459 DOI: 10.1016/j.mcpro.2021.100107] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 04/19/2021] [Accepted: 05/28/2021] [Indexed: 12/15/2022] Open
Abstract
Seminal vesicles are an integral part of the male reproductive accessory gland system. They produce a complex array of secretions containing bioactive constituents that support gamete function and promote reproductive success, with emerging evidence suggesting these secretions are influenced by our environment. Despite their significance, the biology of seminal vesicles remains poorly defined. Here, we complete the first proteomic assessment of mouse seminal vesicles and assess the impact of the reproductive toxicant acrylamide. Mice were administered acrylamide (25 mg/kg bw/day) or control daily for five consecutive days prior to collecting seminal vesicle tissue. A total of 5013 proteins were identified in the seminal vesicle proteome with bioinformatic analyses identifying cell proliferation, protein synthesis, cellular death, and survival pathways as prominent biological processes. Secreted proteins were among the most abundant, and several proteins are linked with seminal vesicle phenotypes. Analysis of the effect of acrylamide on the seminal vesicle proteome revealed 311 differentially regulated (FC ± 1.5, p ≤ 0.05, 205 up-regulated, 106 downregulated) proteins, orthogonally validated via immunoblotting and immunohistochemistry. Pathways that initiate protein synthesis to promote cellular survival were prominent among the dysregulated pathways, and rapamycin-insensitive companion of mTOR (RICTOR, p = 6.69E-07) was a top-ranked upstream driver. Oxidative stress was implicated as contributing to protein changes, with acrylamide causing an increase in 8-OHdG in seminal vesicle epithelial cells (fivefold increase, p = 0.016) and the surrounding smooth muscle layer (twofold increase, p = 0.043). Additionally, acrylamide treatment caused a reduction in seminal vesicle secretion weight (36% reduction, p = 0.009) and total protein content (25% reduction, p = 0.017). Together these findings support the interpretation that toxicant exposure influences male accessory gland physiology and highlights the need to consider the response of all male reproductive tract tissues when interpreting the impact of environmental stressors on male reproductive function.
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Affiliation(s)
- David A Skerrett-Byrne
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, Australia; Pregnancy and Reproduction Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Natalie A Trigg
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, Australia; Pregnancy and Reproduction Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Elizabeth G Bromfield
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, Australia; Pregnancy and Reproduction Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia; Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Matthew D Dun
- Cancer Signalling Research Group, Faculty of Health and Medicine, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia; Priority Research Centre for Cancer Research Innovation and Translation, Hunter Medical Research Institute, Lambton, NSW, Australia
| | - Ilana R Bernstein
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, Australia; Pregnancy and Reproduction Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Amanda L Anderson
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, Australia; Pregnancy and Reproduction Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Simone J Stanger
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, Australia; Pregnancy and Reproduction Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Lily A MacDougall
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, Australia; Pregnancy and Reproduction Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Tessa Lord
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, Australia; Pregnancy and Reproduction Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - R John Aitken
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, Australia; Pregnancy and Reproduction Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Shaun D Roman
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, Australia; Pregnancy and Reproduction Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Sarah A Robertson
- The Robinson Research Institute and Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Brett Nixon
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, Australia; Pregnancy and Reproduction Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - John E Schjenken
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, Australia; Pregnancy and Reproduction Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia.
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14
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Gonçalves AA, Garcia AR, Rolim Filho ST, Silva JARD, Melo DND, Guimarães TC, Tavares HR, Silva TVG, Souza EBD, Santos SDSD, Ohashi OM. Scrotal thermoregulation and sequential sperm abnormalities in buffalo bulls (Bubalus bubalis) under short-term heat stress. J Therm Biol 2021; 96:102842. [PMID: 33627280 DOI: 10.1016/j.jtherbio.2021.102842] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 12/19/2020] [Accepted: 01/03/2021] [Indexed: 12/24/2022]
Abstract
Heat stress reduces the reproductive capacity of bulls raised in tropical climate. However, the reestablishment of scrotal thermoregulation and the dynamics of sperm defects emergence after stress are not completely known in buffaloes. Thus, the study aimed to evaluate the effect of short-term heat stress over scrotal thermoregulation and sperm attributes, relating them to spermatogenesis stages. Five buffalo bulls went through scrotal insulation during 48 h (from day 0 to day 2). Semen samples were collected every 7 days (from day -7 to day 49) and analyzed about the progressive motility, viability, and sperm morphology. Heat stress significantly destabilized scrotal thermoregulation (P < 0.001). Scrotal temperature was from 4.2 to 6.3 °C lower than the core body temperature, except on insulation days (P < 0.001), and returned to the basal condition five days after the removal of the stressing stimulus. More significant deleterious effects were observed in sperm morphology than in cell concentration, motility, and viability. The chronology of morphologic defects expression demonstrated tail defects (days 7-14), cytoplasmic droplets (days 14-28), and head defects (day 28), returning to pre-insulation condition 35 days after the thermal challenge. Thus, hyperthermia harmed more intensely spermatozoa in epididymal transit, elongated spermatids, and secondary spermatocytes. It is concluded that water buffalo bulls present a peculiar manifestation of sperm morphology after short-term stress, indicating an important difference related to the bovine species. Therefore, during the andrological evaluation of buffalo bulls, it is necessary to avoid the allometric extrapolation between these species.
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Affiliation(s)
- Arnaldo Algaranhar Gonçalves
- Laboratory of in Vitro Fertilization, Institute of Biological Sciences, Federal University of Pará, Belém, PA, Brazil
| | - Alexandre Rossetto Garcia
- Laboratory of Biotechnology and Animal Reproduction Brazilian Agricultural Research Corporation, Embrapa Southeast Livestock, São Carlos, SP, Brazil.
| | | | | | - Dayana Neves de Melo
- Institute of Health and Animal Production, Federal Rural University of Amazonia, Belém, PA, Brazil
| | - Thiago Castro Guimarães
- Laboratory of in Vitro Fertilization, Institute of Biological Sciences, Federal University of Pará, Belém, PA, Brazil
| | - Héliton Ribeiro Tavares
- Laboratory of in Vitro Fertilization, Institute of Biological Sciences, Federal University of Pará, Belém, PA, Brazil
| | | | - Eduardo Baia de Souza
- Laboratory of in Vitro Fertilization, Institute of Biological Sciences, Federal University of Pará, Belém, PA, Brazil
| | | | - Otávio Mitio Ohashi
- Laboratory of in Vitro Fertilization, Institute of Biological Sciences, Federal University of Pará, Belém, PA, Brazil
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15
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Abstract
Since bull fertility may be adversely affected by hot humid conditions, the current increase in global temperature is of concern for future livestock production. Heat stress occurs when the body's normal physiological mechanisms to regulate body temperature cannot cope with external conditions. The testes and scrotum have their own complex regulatory mechanisms to protect developing sperm during their most vulnerable stages, but even these may be overwhelmed by unfavourable external conditions. The effects of mild, moderate and severe heat stress are somewhat different, with cattle exposed to mild and moderate heat stress apparently showing an adverse effect on fertility, whereas cattle in very hot, humid climates almost continuously may not exhibit any difference in sperm quality throughout the year. This apparent paradox may be due to differences in the cattle populations being studied, since they could differ in breed, age, purpose (beef versus dairy), or even in the methods used to assess sperm quality. The adverse effects on fertility may occur through the effects of reactive oxygen species on sperm DNA, or through perturbation of the production of antioxidants that usually protect sperm from oxidative attack. These effects can be mitigated to some extent by choosing breed and age of bulls with care, and adopting breeding strategies that avoid semen collection or ejaculation at the most adverse times of year. Husbandry measures such as controlled ventilation, misting, provision of shade or cool surfaces for lying down, could aid temperature regulation. Avoiding heat stress during late pregnancy aids calf growth in early life; careful feeding regimens for young bull calves create good conditions for sperm quality after puberty. Bull fertility is too important to be left to chance. Breeds should be chosen according to climate conditions and the purpose of livestock production.
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16
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Ahmadi E, Tahmasebian-Ghahfarokhi N, Nafar-Sefiddashti M, Sadeghi-Sefiddashti M, Hassanpour H. Impacts of in vitro thermal stress on ovine epididymal spermatozoa and the protective effect of β-mercaptoethanol as an antioxidant. VETERINARY RESEARCH FORUM : AN INTERNATIONAL QUARTERLY JOURNAL 2020; 11:43-51. [PMID: 32537106 PMCID: PMC7282219 DOI: 10.30466/vrf.2018.83527.2096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Accepted: 07/24/2018] [Indexed: 11/01/2022]
Abstract
Most aspects of reproductive function including spermatogenesis, oocyte growth and maturation, early embryonic development, fetal and placental growth, and lactation can be affected by thermal stress. Furthermore, it has been shown that oxidative stress involves in the pathology of thermal stress. Therefore, the aim of this study was to investigate the impacts of thermal stress on the ovine mature epididymal spermatozoa extracted from testes of slaughtered rams in the presence or absence of an antioxidant. Epididymal spermatozoa were incubated at scrotal (32.00 ˚C), normal body (39.00 ˚C), and hyperthermic temperatures (41.00 ˚C) for 4 hr in the presence or absence of 1 mmol L-1 β-mercaptoethanol. The results demonstrated the high sensitivity of ram epididymal spermatozoa to the hyperthermic temperature at in vitro conditions. In comparison with scrotal temperature, quality parameters of spermatozoa were negatively affected by increase in temperature, as such in the spermatozoa incubated at hyperthermic temperature significant decrease was observed in the viability, DNA integrity and in the majority of motility parameters. Moreover, concentration of lipid peroxidation by-products, thiobarbituric acid reactive substances, were significantly increased. The findings showed that using antioxidant during incubation period had significant protective effect on the viability and motility of incubated spermatozoa not only at the hyperthermic temperature, but also at the scrotal and normal body temperatures. In conclusion the ovine epididymal spermatozoa were sensitive to in vitro thermal stress and it seems that this sensitivity was partly related to the oxidative stress.
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Affiliation(s)
- Ebrahim Ahmadi
- Department of Cloning and Transgenic Animals, Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran
| | - Narges Tahmasebian-Ghahfarokhi
- Department of Cloning and Transgenic Animals, Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran
| | - Maryam Nafar-Sefiddashti
- Department of Cloning and Transgenic Animals, Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran
| | - Marzieh Sadeghi-Sefiddashti
- Department of Cloning and Transgenic Animals, Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran
| | - Hossein Hassanpour
- Department of Cloning and Transgenic Animals, Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran.,Department of Basic Sciences, Faculty of Veterinary Medicine, Shahrekord University, Shahrekord, Iran
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17
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Elmi A, Zannoni A, Govoni N, Bertocchi M, Forni M, Ventrella D, Bacci ML. Uncovering the Physiological Mechanisms Underlying the Roe Deer ( Capreolus capreolus) Testicular Cycle: Analyses of Gelatinases and VEGF Patterns and Correlation with Testes Weight and Testosterone. Animals (Basel) 2020; 10:ani10030444. [PMID: 32155893 PMCID: PMC7143327 DOI: 10.3390/ani10030444] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/03/2020] [Accepted: 03/04/2020] [Indexed: 12/25/2022] Open
Abstract
Simple Summary The roe deer (Capreolus capreolus) is a wild, small ruminant common in Europe and Asia with a peculiar reproductive cycle. The adult male shows a complete suspension of spermatozoa production during the winter that start again in spring with the peak of sexual activity in summer (July–August). The physiological mechanism underlying such a cycle is yet to be clarified. The work aimed at the analysis of some molecules, like gelatinases (MMP) and vascular growth factor, physiologically involved in tissue remodeling, in roe deer samples collected before (June–July) and after (August–September) the rutting period. Samples were provided by hunters of the Bologna Apennines area (Italy) according to the regional hunting plan. The result showed a post-rut reduction of testicular weight and testosterone, indicative of testes involution, correlated with an increase in pro-MMP2, the latent gelatinase capable of sustaining spermatogenesis once activated. It can be assumed that gelatinases are involved in the testicular cycle and start accumulating after the rutting period to be then activated in preparation of the next reproductive season inducing spermatozoa development and migration. Future studies on this pathway during all seasonal testicular cycles will provide more information about the interesting reproductive physiology of roe deer. Abstract The roe deer (Capreolus capreolus) represents a spontaneous model of testicular inactivation: During winter, bucks show a suspension of spermatogenesis that starts again in spring and peaks during the breeding season (July–August). The underlying mechanisms to the regulation of the cyclic testicular changes are still not fully clear but seem to be imputable to the spermatogenic cell line since other testicular cell populations remain stable without apoptotic phenomena. The aim of the study was to investigate apoptosis, gelatinases (MMP2 and 9), their inhibiting factors (TIMP 1-2), and two isoforms of vascular endothelial growth factor (VEGF121 and 165) with its receptors (VEGFR1-2) in testes collected during pre- and post-rut periods, and to correlate them with testicular weight (TW) and testosterone (TEST). Testes from 18 adult sexually mature bucks were collected in Bologna Apennines (Italy). Samples were weighed and parenchyma collected. Radioimmunoassay, real-time PCR, and zymography were performed. The results showed a post-rut decrease in TW and TEST and an increase in proMMP2, also highlighting a correlation between the gelatinases and the testicular functionality. The VEGF pattern did not show modifications nor correlation with TW and TEST. Overall, gelatinases and their inhibitors, described herein for the first time in roe deer testes, seem to play an important role in the testicular cycle.
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18
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Alvarez M, Anel-Lopez L, Boixo JC, Chamorro C, Neila-Montero M, Montes-Garrido R, de Paz P, Anel L. Current challenges in sheep artificial insemination: A particular insight. Reprod Domest Anim 2020; 54 Suppl 4:32-40. [PMID: 31625241 DOI: 10.1111/rda.13523] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 07/15/2019] [Accepted: 07/16/2019] [Indexed: 12/01/2022]
Abstract
Ovine artificial insemination (OAI) is not commonly performed because of specific problems related to semen application techniques, leading to highly variable results. The ideal methodology (frozen-thawed semen/vaginal route) is unfeasible under field conditions due to the cervix morphology of the ewe, which prevents the process of intrauterine insemination necessary to obtain acceptable results. Currently, OAI commercial programmes use superficial cervical insemination, CAI (vaginal), with chilled semen (15°C) and intrauterine insemination, LAI (laparoscopic), with frozen-thawed semen. The ability to improve upon these contrasting techniques may be derived from examining certain poorly studied factors such as insemination time, productive state of females and alternatives of seminal preservation, some of which we reviewed in this work. This interim solution will remain in use until AI by the vaginal route with frozen-thawed semen is developed, but it poses new challenges in optimizing the freezing of the sperm and adapting the cervical (CAI) and/or transcervical intrauterine AI (TCAI). In this review, we address the current problems and evaluate their methodological (mechanical) and chemical (dilation) alternatives. Currently, TCAI is a methodologically complex technique with poor fertility results, so further studies are needed to improve the logistics of this procedure and the results of its application.
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Affiliation(s)
- Mercedes Alvarez
- Reproduction and Obstetrics, Department of Medicine, Surgery and Veterinary Anatomy, University of Leon, Leon, Spain
| | - Luis Anel-Lopez
- Anatomy, Department of Medicine, Surgery and Veterinary Anatomy, University of Leon, Leon, Spain
| | | | - Cesar Chamorro
- Anatomy, Department of Medicine, Surgery and Veterinary Anatomy, University of Leon, Leon, Spain
| | - Marta Neila-Montero
- Reproduction and Obstetrics, Department of Medicine, Surgery and Veterinary Anatomy, University of Leon, Leon, Spain
| | - Rafael Montes-Garrido
- Reproduction and Obstetrics, Department of Medicine, Surgery and Veterinary Anatomy, University of Leon, Leon, Spain
| | - Paulino de Paz
- Department of Molecular Biology, University of Leon, Leon, Spain
| | - Luis Anel
- Reproduction and Obstetrics, Department of Medicine, Surgery and Veterinary Anatomy, University of Leon, Leon, Spain
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19
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Pereira GR, de Lazari FL, Dalberto PF, Bizarro CV, Sontag ER, Koetz Junior C, Menegassi SRO, Barcellos JOJ, Bustamante-Filho IC. Effect of scrotal insulation on sperm quality and seminal plasma proteome of Brangus bulls. Theriogenology 2020; 144:194-203. [DOI: 10.1016/j.theriogenology.2020.01.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 01/06/2020] [Accepted: 01/08/2020] [Indexed: 12/13/2022]
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20
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Boe-Hansen GB, Rêgo JPA, Satake N, Venus B, Sadowski P, Nouwens A, Li Y, McGowan M. Effects of increased scrotal temperature on semen quality and seminal plasma proteins in Brahman bulls. Mol Reprod Dev 2020; 87:574-597. [PMID: 32083367 DOI: 10.1002/mrd.23328] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 02/03/2020] [Indexed: 12/15/2022]
Abstract
Environmental temperature has effects on sperm quality with differences in susceptibility between cattle subspecies and breeds, but very little is known about the seminal plasma protein (SPP) changes resulting from testicular heat stress. Scrotal insulation (SI) for 48 hr was applied to Brahman (Bos indicus) bulls. Semen was collected at 3-day intervals from before, until 74 days post-SI. The changes in sperm morphology and motility following SI were comparable to previously reported and differences were detected in measures of sperm chromatin conformation as early as 8 days post-SI. New proteins spots, in the SPP two-dimensional (2-D) gels, were apparent when comparing pre-SI with 74 days post-SI, and SPP identified as associated with mechanisms of cellular repair and protection. Similar trends between 2-D gel and Sequential Window Acquisition of All Theoretical Mass Spectra (SWATH-MS) data was observed, with SWATH-MS able to quantify individual SPP that otherwise were not resolved on 2-D gel. The SPP assessment at peak sperm damage (21-24 days) showed a significant difference in 29 SPP (adjusted p < .05), and identified six proteins with change in abundance in the SI group. In conclusion both spermatozoa and SPP composition of bulls are susceptible to temperature change incurred by SI, and SPP markers for testicular heat insults may be detected.
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Affiliation(s)
- Gry Brandt Boe-Hansen
- School of Veterinary Science, The University of Queensland, Brisbane, QLD, Australia
| | - João Paulo A Rêgo
- Federal Institute of Education, Science and Technology of Ceará, Boa Viagem Campus, Fortaleza, Brazil
| | - Nana Satake
- School of Agriculture and Food Sciences, The University of Queensland, St. Lucia, QLD, Australia
| | - Bronwyn Venus
- Agri-Science Department of Agriculture, Fisheries and Forestry, Brisbane, QLD, Australia
| | - Pawel Sadowski
- Central Analytical Research Facility, Queensland University of Technology, Brisbane, QLD, Australia
| | - Amanda Nouwens
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD, Australia
| | - Yutao Li
- CSIRO Agriculture and Food, St. Lucia, QLD, Australia
| | - Michael McGowan
- School of Veterinary Science, The University of Queensland, Brisbane, QLD, Australia
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21
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Abdelhamid MHM, Walschaerts M, Ahmad G, Mieusset R, Bujan L, Hamdi S. Mild experimental increase in testis and epididymis temperature in men: effects on sperm morphology according to spermatogenesis stages. Transl Androl Urol 2019; 8:651-665. [PMID: 32038961 DOI: 10.21037/tau.2019.11.18] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Background A mild increase in testicular and epididymal temperatures in men, bulls and rams (pendulous scrotum) inhibits spermatogenesis and increases the percentage of sperm with an abnormal morphology. However, the stages of spermatogenesis that are most sensitive to a mild increase in testicular temperature in men are unknown. The aim of the present study was to explore the effects of a mild induced increase in testicular and epididymal temperature (i.e., testicular temperature maintained below the core body temperature) on sperm morphology in humans depending on the physiological time of spermatogenesis and epididymal transit. Methods Five healthy volunteers were enrolled in an experimental study in which testicular and epididymal temperatures were increased by maintaining the testes in a supra-scrotal position with a specially designed underwear worn 15±1 h a day for 120 consecutive days. Semen collection was scheduled on specific days depending on spermatogenic stages and epididymal transit. Results Sperm morphology and the multiple anomalies index (MAI) were analysed before, during and after heating. This mild induced increase in testicular and epididymal temperatures resulted in a significant rise in the percentage of morphologically abnormal spermatozoa on day 34 of heating, which remained elevated throughout the heating period and persisted until 45 days after cessation of heating. The MAI was significantly increased on day 20 throughout the heating period and persisted 45 days after cessation of heating. An increase in the percentage of anomalies in the sperm head, acrosome or tail occurred on days 34 and/or 45 of heating. Abnormal sperm morphology and MAI reverted to control values 73 days after cessation of heating. Conclusions A mild sustained increase in testicular and epididymal temperature in man leads morphological abnormalities in spermatozoa mainly due to an impairment of spermiogenesis and meiosis.
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Affiliation(s)
- Mohamed Hadi Mohamed Abdelhamid
- Groupe de Recherche en Fertilité Humaine (EA 3694, Human Fertility Research Group), UPS, Toulouse III University, Toulouse, France
| | - Marie Walschaerts
- Groupe de Recherche en Fertilité Humaine (EA 3694, Human Fertility Research Group), UPS, Toulouse III University, Toulouse, France.,Germethèque, Groupe d'activité de médecine de la reproduction (Reproductive Medicine Unit), Hôpital Paule de Viguier, CHU Toulouse (University Hospital Centre), Toulouse, France
| | - Gulfam Ahmad
- Department of Pathology, School of Medical Sciences, Sydney Medical School, Sydney University, Sydney, Australia
| | - Roger Mieusset
- Groupe de Recherche en Fertilité Humaine (EA 3694, Human Fertility Research Group), UPS, Toulouse III University, Toulouse, France.,Andrology Unit), Hôpital Paule de Viguier, CHU Toulouse (University Hospital Centre), Toulouse, France
| | - Louis Bujan
- Groupe de Recherche en Fertilité Humaine (EA 3694, Human Fertility Research Group), UPS, Toulouse III University, Toulouse, France.,CECOS, Groupe d'activité de médecine de la reproduction (Reproductive Medicine Unit), Hôpital Paule de Viguier, CHU Toulouse (University Hospital Centre), Toulouse, France
| | - Safouane Hamdi
- Groupe de Recherche en Fertilité Humaine (EA 3694, Human Fertility Research Group), UPS, Toulouse III University, Toulouse, France.,Biochemestry Laboratory, Institut Fédératif de Biologie (Federal Institute of Biology), CHU Toulouse (University Hospital Centre), Toulouse, France
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22
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Velho A, Wang H, Koenig L, Grant KE, Menezes ES, Kaya A, Moura A, Memili E. Expression dynamics of Integrin Subunit Beta 5 in bovine gametes and embryos imply functions in male fertility and early embryonic development. Andrologia 2019; 51:e13305. [PMID: 31090238 DOI: 10.1111/and.13305] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 03/04/2019] [Accepted: 03/25/2019] [Indexed: 12/25/2022] Open
Abstract
Integrins have been shown to act as signalling receptors, and they primarily recognise extracellular matrix ligands on the oocyte surface. However, their possible roles in oocyte activation and embryo development are not clearly understood. The objectives of this study were to evaluate expression of Integrin Subunit Beta 5 (ITGβ5) in bovine sperm, oocytes, and early embryos and to ascertain the evolutionary conservation of ITGβ5. To accomplish these objectives, we used western blotting to study expression levels of ITGβ5 protein in sperm and RT-qPCR to determine expression levels of ITGβ5 transcripts in oocytes and embryos. We have also used bioinformatic analysis to determine the evolutionary conservation of the ITGβ5 protein among various species. Western blotting showed that ITGβ5 protein was detectable in bull sperm. Moreover, results of RT-qPCR showed that levels of ITGβ5 were significantly higher in the two-cell embryos, followed by the 8-16-cell embryos. However, no significant difference in expression levels were noted for the morula and blastocyst stages as compared to MII oocytes. Bioinformatic analysis revealed that ITGβ5 is conserved among various species. We conclude that expression of ITGβ5 in bovine gametes and embryos implies an important role in fertilisation and embryogenesis.
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Affiliation(s)
- Ana Velho
- Department of Animal and Dairy Sciences, Mississippi State University, Starkville, Mississippi.,Department of Animal Sciences, Federal University of Ceara, Fortaleza, Brazil
| | - Hongfeng Wang
- Department of Animal and Dairy Sciences, Mississippi State University, Starkville, Mississippi
| | - Leslie Koenig
- Department of Animal and Dairy Sciences, Mississippi State University, Starkville, Mississippi
| | - Kamilah E Grant
- Department of Animal and Dairy Sciences, Mississippi State University, Starkville, Mississippi
| | - Erika S Menezes
- Department of Animal and Dairy Sciences, Mississippi State University, Starkville, Mississippi
| | - Abdullah Kaya
- Department of Reproduction and Artificial Insemination, Selcuk University, Konya, Turkey
| | - Arlindo Moura
- Department of Animal Sciences, Federal University of Ceara, Fortaleza, Brazil
| | - Erdogan Memili
- Department of Animal and Dairy Sciences, Mississippi State University, Starkville, Mississippi
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Escobar E, Lopes S, Malavolta C, Ramalho JB, Missio D, Pinto HF, Soares MB, Leivas FG, Brum DDS, Cibin FWS. Effect of γ-oryzanol on testicular degeneration induced by scrotal insulation in rams. Theriogenology 2019; 128:167-175. [PMID: 30772660 DOI: 10.1016/j.theriogenology.2019.01.041] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 01/22/2019] [Accepted: 01/31/2019] [Indexed: 11/26/2022]
Abstract
The present study assessed the effects of daily supplementation with 33 mg/metabolic weight (MW) of γ-oryzanol on testicular degeneration induced by scrotal insulation in rams. Eight animals were divided into two groups: Control (subjected to scrotal insulation without treatment) and Gamma (subjected to scrotal insulation and γ-oryzanol treatment). The rams were subjected to scrotal insulation by covering the scrotum with a thermal bag for 72 h. Animals in the Gamma group received 33 mg/MW oral γ-oryzanol once-daily, beginning 7 days before insulation and continuing during insulation and for 20 days afterward, for a total treatment period of 30 days. Samples of semen and blood were collected during the experiment to perform biochemical evaluations of oxidative stress, seminal kinetics and morphology, and plasma testosterone concentrations. Ultrasound examinations of the testicular parenchyma and clinical evaluations of its consistency and the scrotal perimeter were also performed at weekly intervals. Testicular tissue was collected for biochemical analyses of oxidative stress parameters at the end of the experiment by orchiectomy. The results showed that testicular degeneration was induced by scrotal insulation, as was demonstrated by the reduced scrotal perimeter and increased in testicular flaccidity immediately after insulation. Moreover, a delayed increase in the number of hyperechoic points in the parenchyma and a delayed reduction in sperm motility were observed at 10 weeks after insulation by ultrasonography. Treatment with γ-oryzanol reduced levels of reactive oxygen species (ROS) levels in the testes, and increased the total antioxidant potential (assessed based on the ferric reducing ability (FRAP)) in week 10 and levels of lipid peroxidation (TBARS). It also increased the number of intact spermatozoa in week 3, but increased the total number of sperm defects from week 5 onwards. Although γ-oryzanol protected the semen and testes by reducing the levels of the parameters of oxidative stress evaluated herein, the other parameters studied were not improved by the treatment. In addition, supplementation with γ-oryzanol led to more morphological abnormalities in the sperm. This study presented new information on the oral administration of γ-oryzanol to rams with testicular degeneration, and described potential therapies for this pathology, which currently has no established treatment and has important impacts on reproductive health.
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Affiliation(s)
- Eduarda Escobar
- Laboratório de Biotecnologia da Reprodução (Biotech), Campus Uruguaiana, Universidade Federal do Pampa, CEP 97500-970, Uruguaiana, RS, Brazil
| | - Sabrina Lopes
- Laboratório de Biotecnologia da Reprodução (Biotech), Campus Uruguaiana, Universidade Federal do Pampa, CEP 97500-970, Uruguaiana, RS, Brazil
| | - Cristiano Malavolta
- Laboratório de Biotecnologia da Reprodução (Biotech), Campus Uruguaiana, Universidade Federal do Pampa, CEP 97500-970, Uruguaiana, RS, Brazil
| | - Juliana Bernera Ramalho
- Laboratório de Biotecnologia da Reprodução (Biotech), Campus Uruguaiana, Universidade Federal do Pampa, CEP 97500-970, Uruguaiana, RS, Brazil
| | - Daniele Missio
- Laboratório de Biotecnologia da Reprodução (Biotech), Campus Uruguaiana, Universidade Federal do Pampa, CEP 97500-970, Uruguaiana, RS, Brazil
| | - Hirya Fernandes Pinto
- Laboratório de Biotecnologia da Reprodução (Biotech), Campus Uruguaiana, Universidade Federal do Pampa, CEP 97500-970, Uruguaiana, RS, Brazil
| | - Melina Bucco Soares
- Laboratório de Biotecnologia da Reprodução (Biotech), Campus Uruguaiana, Universidade Federal do Pampa, CEP 97500-970, Uruguaiana, RS, Brazil
| | - Fábio Gallas Leivas
- Laboratório de Biotecnologia da Reprodução (Biotech), Campus Uruguaiana, Universidade Federal do Pampa, CEP 97500-970, Uruguaiana, RS, Brazil
| | - Daniela Dos Santos Brum
- Laboratório de Biotecnologia da Reprodução (Biotech), Campus Uruguaiana, Universidade Federal do Pampa, CEP 97500-970, Uruguaiana, RS, Brazil
| | - Francielli Weber Santos Cibin
- Laboratório de Biotecnologia da Reprodução (Biotech), Campus Uruguaiana, Universidade Federal do Pampa, CEP 97500-970, Uruguaiana, RS, Brazil.
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Kasimanickam R, Kasimanickam V, Arangasamy A, Kastelic J. Sperm and seminal plasma proteomics of high- versus low-fertility Holstein bulls. Theriogenology 2019; 126:41-48. [DOI: 10.1016/j.theriogenology.2018.11.032] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 09/13/2018] [Accepted: 11/27/2018] [Indexed: 12/30/2022]
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25
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Moura ABB, Brandão FZ, Esteves SN, Nunes de Souza G, Fonseca JFD, Pantoja MHA, Romanello N, Botta D, Giro A, Garcia AR. Differences in the thermal sensitivity and seminal quality of distinct ovine genotypes raised in tropical conditions. Theriogenology 2019; 123:123-131. [PMID: 30292856 DOI: 10.1016/j.theriogenology.2018.09.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 09/10/2018] [Accepted: 09/26/2018] [Indexed: 11/16/2022]
Abstract
For different ovine breeds to maximize their reproductive capacity in countries with tropical climate, it is important to evaluate their potential for thermal resilience and consequences on their reproductive traits. Therefore, the objective of this study was to evaluate the effect of thermal environment temperatures of climate seasons in a tropical climate region on the surface temperatures of the scrotum, testicular biometric characteristics, seminal quality and serum testosterone concentration of rams of different genotypes. Breeders of four different genotypes (Dorper, n = 8, Texel, n = 8, Santa Inês, n = 9 and Morada Nova, n = 8) were used throughout the four climate seasons. Higher thermal challenge was recorded in the spring and summer. In the summer increase in scrotal surface temperature was detected by infrared thermography (P < 0.05), mainly in the regions of the distal testicular pole and tail of the epididymis. The animals of the Texel genotype had higher rectal temperature in the summer. In spring, this genotype also had the highest testicular pole (32.2 ± 0.5 °C; P < 0.05) and distal (29.9 ± 0.4 °C; P < 0.05) temperatures and a higher mean testicular temperature (31.7 ± 0.4 °C; P < 0.05). The Morada Nova genotype showed a higher surface temperature gradient between testicular poles (2.96 ± 0.1 °C; P < 0.05), especially in spring. Genotype-dependent thermal sensitivity was detected for the thermal gradient between the testicular poles, reflecting the seminal quality. There was a positive correlation of the thermal gradient between testicular poles with sperm membrane integrity and negative correlation with total sperm defects. The Texel genotype showed less progressive motility and higher percentage of sperm defects. There was no difference in testosterone concentration between genotypes and in the different seasons (P > 0.05). Thus, the indigenous genotypes showed a greater capability to maintain the scrotum-testicular thermoregulation. Dorper animals resembled the indigenous sheep genotypes, in terms of seminal characteristics, unlike Texel animals, which showed lower adaptability and lower seminal quality.
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Affiliation(s)
| | | | - Sérgio Novita Esteves
- Laboratory of Animal Reproduction, Brazilian Agricultural Research Corporation, Embrapa Southeast Livestock (CPPSE/Embrapa), São Carlos, SP, Brazil
| | | | | | | | - Narian Romanello
- Faculty of Veterinary Medicine and Animal Science, University of São Paulo (FMVZ/USP), Pirassununga, SP, Brazil
| | - Daniela Botta
- Institute of Veterinary Medicine, Federal University of Pará, Castanhal, PA, Brazil
| | - Alessandro Giro
- Institute of Veterinary Medicine, Federal University of Pará, Castanhal, PA, Brazil
| | - Alexandre Rossetto Garcia
- Laboratory of Animal Reproduction, Brazilian Agricultural Research Corporation, Embrapa Southeast Livestock (CPPSE/Embrapa), São Carlos, SP, Brazil.
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Olejnik J, Suchowerska N, Herrid M, Jackson M, Hinch G, Hill J. Spermatogonia survival in young ram lambs following irradiation, Busulfan or thermal treatment. Small Rumin Res 2018. [DOI: 10.1016/j.smallrumres.2018.07.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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27
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Serum Testosterone Levels and Seminal Plasma Proteins in Castrated Stallions. J Equine Vet Sci 2018. [DOI: 10.1016/j.jevs.2018.05.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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28
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Medini R, Bhagya M, Samson S. Identification and characterisation of the epididymal proteins in the lizard, Eutropis carinata (Reptilia, Squamata) (Schneider, 1801). Gen Comp Endocrinol 2018; 259:76-84. [PMID: 29155263 DOI: 10.1016/j.ygcen.2017.11.005] [Citation(s) in RCA: 2] [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: 04/27/2017] [Revised: 11/06/2017] [Accepted: 11/15/2017] [Indexed: 11/29/2022]
Abstract
Lizards are seasonal breeders. Cyclic reproductive nature makes lizard as a useful model for the study of the reproductively active protein secretions in the epididymis. During breeding season, the epididymides of the lizard secret proteins that mixes with the spermatozoa and create a favourable environment for sperm maturation. In this spectrum, the aim of this study is to identify and characterize proteins which are present in the lumen of the epididymis of the lizard, E. carinata during the active phase of reproduction. The identification and analysis of the proteins are done through the proteomic approaches. The epididymal luminal fluid sample was taken from the reproductively active and inactive phase and these are subjected to the size exclusion chromatography. Two major peaks (peak 1 and peak 2) were obtained in the epididymal luminal fluid sample taken during the reproductively active phase. On the other hand, the sample from the reproductively inactive phase showed one peak (peak 1) whereas, peak 2 is not present during this phase. The peak 2 belong to reproductively active phase was later subjected to the proteomic analysis. Appropriate gel electrophoresis separation and purification methods are combined with LC-MS/MS in order to identify and characterize the proteins that are presented during the reproductively active phase. Further, in this work, nine proteins are identified including three enzymes and three heat shock proteins. Among the identified proteins, bioinformatics analysis predicts that majority of them are localized in the cytoplasm. In addition to this, an observation is made in the endoplasmic reticulum where it is seen that a close protein-protein interaction network of three molecular chaperones are involved in protein processing. Overall, this paper opens up a new dimension search for epididymal markers for the first time in reptiles, particularly lizards.
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Affiliation(s)
- R Medini
- Department of Zoology, University of Mysore, Mysuru 570006, Karnataka State, India
| | - M Bhagya
- Department of Zoology, University of Mysore, Mysuru 570006, Karnataka State, India.
| | - S Samson
- Department of Zoology, University of Mysore, Mysuru 570006, Karnataka State, India
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29
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Silva HVR, Rodriguez-Villamil P, Magalhães FFD, Nunes TGP, Freitas LAD, Ribeiro LR, Silva AR, Moura AA, Silva LDMD. Seminal plasma and sperm proteome of ring-tailed coatis (Nasua nasua, Linnaeus, 1766). Theriogenology 2018; 111:34-42. [PMID: 29427806 DOI: 10.1016/j.theriogenology.2017.12.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 12/11/2017] [Accepted: 12/19/2017] [Indexed: 12/24/2022]
Abstract
Ring-tailed coati is listed as a species of least concern in the International Union for Conservation of Nature (IUCN) Red List, however, there has been a sharp decline in their population. The present study was conducted to evaluate the major proteins of both seminal plasma and sperm in ring-tailed coatis. Semen sample was collected from three adult coatis and evaluated for their morphological characteristics. Further, the sample was centrifuged to separate spermatozoa from seminal plasma, and then stored in liquid nitrogen. The seminal plasma and sperm proteins were subjected to one-dimensional (1-D) sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and identified by mass spectrometry. Gene ontology and protein networks were analyzed using bioinformatics tools. Based on sperm concentration and average protein content of the semen, the concentration of protein/spermatozoon was found to be 104.69 ± 44.43 μg. The analysis of SDS-PAGE gels showed 20.3 ± 3.1 and 17 ± 2 protein bands/lane for seminal plasma and sperm, respectively. In-gel protein digestion and peptide analysis by mass spectrometry revealed 238 and 246 proteins in the seminal plasma and sperm, respectively. The gene ontology analysis revealed that the proteins of seminal plasma mainly participated in cellular (35%) and regulatory (21%) processes. According to their cellular localization, seminal plasma proteins were categorized as structural (18%), extracellular (17%), and nuclear (14%) proteins with molecular functions, such as catalytic activity (43%) and binding (43%). The sperm proteins were also involved in cellular (38%) and regulatory (23%) processes, and mainly categorized as extracellular (17%), nuclear (13%), and cytoplasmic (10%) proteins. The major molecular functions of the sperm proteins were catalytic activity (44%) and binding (42%). These results indicated that the seminal plasma of ring-tailed coati has an array of proteins that can potentially modulate several sperm functions, from sperm protection to oocyte binding. However, further studies are necessary to interpret the roles of these major seminal plasma proteins in coatis.
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Affiliation(s)
| | | | | | | | | | | | - Alexandre Rodrigues Silva
- Laboratory of Animal Germplasm Conservation, Federal University of the Semi-Arid, Mossoró, RN, Brazil
| | - Arlindo A Moura
- Department of Animal Science, Federal University of Ceará, Fortaleza, CE, Brazil
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30
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Isobaric tags for relative and absolute quantification-based proteomic analysis of testis biopsies in rhesus monkeys treated with transient scrotal hyperthermia. Oncotarget 2017; 8:85909-85925. [PMID: 29156766 PMCID: PMC5689656 DOI: 10.18632/oncotarget.20719] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 07/29/2017] [Indexed: 11/25/2022] Open
Abstract
This study aimed to examine the cellular and molecular events that occur in rhesus monkey testes after scrotal hyperthermia. Eight male adult rhesus monkeys were subjected to scrotal hyperthermia at 43°C for 30 min daily for 6 consecutive days. Sperm concentration, reproductive hormones, and testis histology were examined before hyperthermia (day 0), and at 8, 15, 30, 45, 60, 75, and 90 days after the initiation of hyperthermia. iTRAQ-based proteomic analysis was conducted on testicular tissues collected on days 0, 8, and 60 to identify differentially expressed proteins at the early and recovery stages of testicular damage. The sperm concentration was significantly decreased at days 30 and 45 after treatment (p < 0.01) and recovered to baseline at day 60. When compared with day 0, 101 and 24 differentially expressed proteins were identified at days 8 and 60 after heat treatment, respectively. The molecular functions of the differentially expressed proteins at day 8 were mainly nucleic acid binding, unfolded protein binding, nucleotide binding, and nucleoside phosphate binding. Spliceosome was enriched as the most significant pathway at day 8. CIRBP, PSIP1, Sam68, and Decorin were validated and found to be consistent with the proteomic data, indicating the reliability of the proteomic profiles identified in this study. In summary, we suggest that the proteins identified in this study may play important roles in heat-induced spermatogenic impairment. Some of these proteins, such as CIRBP, PSIP1, Sam68, and Decorin, may be early molecular targets responsible for spermatogenesis suppression induced by heat treatment.
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31
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Aquino-Cortez A, Pinheiro BQ, Lima DBC, Silva HVR, Mota-Filho AC, Martins JAM, Rodriguez-Villamil P, Moura AA, Silva LDM. Proteomic characterization of canine seminal plasma. Theriogenology 2017; 95:178-186. [PMID: 28460673 DOI: 10.1016/j.theriogenology.2017.03.016] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 03/16/2017] [Accepted: 03/18/2017] [Indexed: 12/31/2022]
Abstract
The present study was conducted to identify the major proteome of the sperm-rich fraction and prostatic fraction of canine seminal plasma. Three semen samples from four healthy dogs were obtained by digital manipulation. The pre-sperm fraction, sperm-rich fraction and prostatic fraction were separated from each ejaculate. Immediately after sperm analysis, a protease inhibitor was added to the sperm-rich fraction and prostatic fraction, and the fractions were separately centrifuged and frozen at -80 °C. The samples were thawed, re-centrifuged, and the total protein concentration was determined. Samples were subjected to 1D SDS-PAGE and Coomassie-blue stained gels, were analyzed by Quantity One 1D Analysis Software. Bands detected in the gels were excised and proteins subjected to digestion with trypsin. Proteins were identified by nano-HPLC-MS and tools of bioinformatics. Tandem mass spectrometry allowed the detection of 268 proteins in the gels of sperm-rich fraction and prostatic fraction of canine ejaculate. A total of 251 proteins were common to the sperm-rich and prostatic fractions, while 17 proteins were present in the sperm-rich fraction and absent in the prostatic fraction. The intensity of the bands detected in range 1 and 2 represented 46.5% of all of the band intensities detected in the 1D gels for proteins of the sperm-rich fraction and 53.0% of all bands in the prostatic fraction. Arginine esterase and lactotransferrin precursor were the protein with the highest intensity observed in the both fractions. Among the proteins present only in the sperm-rich fraction, the proteins UPF0764 protein C16orf89 homolog and epididymal-specific lipocalin-9 were the most abundant. In conclusion, canine sperm-rich fraction and prostatic fraction express a very diverse set of proteins, with unique biochemical properties and functions. Moreover, although most proteins are common to both sperm-rich fraction and prostatic fraction, there are some exclusive proteins in sperm-rich fraction.
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Affiliation(s)
- Annice Aquino-Cortez
- Laboratory of Carnivores Reproduction, State University of Ceara, Fortaleza, Brazil
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32
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Pini T, Leahy T, Soleilhavoup C, Tsikis G, Labas V, Combes-Soia L, Harichaux G, Rickard JP, Druart X, de Graaf SP. Proteomic Investigation of Ram Spermatozoa and the Proteins Conferred by Seminal Plasma. J Proteome Res 2016; 15:3700-3711. [PMID: 27636150 DOI: 10.1021/acs.jproteome.6b00530] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Sperm proteomes have emerged for several species; however, the extent of species similarity is unknown. Sheep are an important agricultural species for which a comprehensive sperm proteome has not been produced. In addition, potential proteomic factors from seminal plasma that may contribute to improved fertility after cervical insemination are yet to be explored. Here we use liquid chromatography-tandem mass spectrometry to investigate the proteome of ejaculated ram spermatozoa, with quantitative comparison to epididymal spermatozoa. We also present a comparison to published proteomes of five other species. We identified 685 proteins in ejaculated ram spermatozoa, with the most abundant proteins involved in metabolic pathways. Only 5% of ram sperm proteins were not detected in other species, which suggest highly conserved structures and pathways. Of the proteins present in both epididymal and ejaculated ram spermatozoa, 7% were more abundant in ejaculated spermatozoa. Only two membrane-bound proteins were detected solely in ejaculated sperm lysates: liver enriched gene 1 (LEG1/C6orf58) and epidermal growth factor-like repeats and discoidin I-like domains 3 (EDIL3). This is the first evidence that despite its relatively complex proteomic composition, seminal plasma exposure leads to few novel proteins binding tightly to the ram sperm plasma membrane.
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Affiliation(s)
- Taylor Pini
- Faculty of Veterinary Science, School of Life and Environmental Sciences, The University of Sydney , Sydney, New South Wales 2006, Australia
| | - Tamara Leahy
- Faculty of Veterinary Science, School of Life and Environmental Sciences, The University of Sydney , Sydney, New South Wales 2006, Australia
| | | | - Guillaume Tsikis
- PRC, INRA, CNRS, IFCE, Université de Tours , 37380 Nouzilly, France
| | - Valerie Labas
- PRC, INRA, CNRS, IFCE, Université de Tours , 37380 Nouzilly, France
| | | | | | - Jessica P Rickard
- Faculty of Veterinary Science, School of Life and Environmental Sciences, The University of Sydney , Sydney, New South Wales 2006, Australia
| | - Xavier Druart
- PRC, INRA, CNRS, IFCE, Université de Tours , 37380 Nouzilly, France
| | - Simon P de Graaf
- Faculty of Veterinary Science, School of Life and Environmental Sciences, The University of Sydney , Sydney, New South Wales 2006, Australia
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33
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Montanholi Y, Fontoura A, Diel de Amorim M, Foster R, Chenier T, Miller S. Seminal plasma protein concentrations vary with feed efficiency and fertility-related measures in young beef bulls. Reprod Biol 2016; 16:147-56. [DOI: 10.1016/j.repbio.2016.04.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 04/04/2016] [Accepted: 04/19/2016] [Indexed: 12/26/2022]
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