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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Bezerra MJB, Arruda-Alencar JM, Martins JAM, Viana AGA, Viana Neto AM, Rêgo JPA, Oliveira RV, Lobo M, Moreira ACO, Moreira RA, Moura AA. Major seminal plasma proteome of rabbits and associations with sperm quality. Theriogenology 2019; 128:156-166. [PMID: 30772659 DOI: 10.1016/j.theriogenology.2019.01.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 01/05/2019] [Accepted: 01/13/2019] [Indexed: 12/12/2022]
Abstract
The present study was conducted to describe the major seminal plasma proteome of rabbits and potential associations between seminal proteins and semen criteria. Semen samples were collected from 18 New Zealand adult rabbits, and seminal plasma proteins were analyzed by 2-D SDS-PAGE and tandem mass spectrometry. Sperm motility, vigor, concentration, morphology and membrane sperm viability were evaluated. Rabbits ejaculated 364 ± 70 million sperm/ml, with 81 ± 6.1% motile cells, 3.8 ± 0.2 vigor and 66.7 ± 2.5% sperm with normal morphology. Based on the viability and acrosome integrity assay, there were 65.8 ± 2.5% live sperm with intact acrosome and most spermatozoa had both intact acrosome and functional membrane. On average, 2-D gels of rabbit seminal plasma had 232 ± 69.5 spots, as determined by PDQuest software (Bio Rad, USA). Mass spectrometry allowed the identification of 137 different proteins. The most abundant proteins in rabbit seminal plasma were hemoglobin subunit zeta-like, annexins, lipocalin, FAM115 protein and albumin. The intensity of the spots associated with these five proteins represented 71.5% of the intensity of all spots detected in the master gel. Multiple regression models were estimated using sperm traits as dependent variables and seminal plasma proteins as independent ones. Also, sperm motility had positive association with beta-nerve growth factor and cysteine-rich secretory protein 1-like and a negative one with galectin-1. The percentage of rabbit sperm with intact membrane was related to seminal plasma protein FAM115 complex and tropomyosin. Then, the population of morphologically normal sperm in rabbit semen was positively linked to carcinoembryonic antigen-related cell adhesion molecule 6-like and down regulated by seminal plasma isocitrate dehydrogenase. Based on another regression model, the variation in the percentage of live sperm with intact acrosome was partially explained by the amount of leukocyte elastase inhibitor and the peptidyl-prolyl cis-trans isomerase A in the rabbit seminal fluid. The current study reports the identification of 137 proteins of rabbit seminal plasma. Major proteins of seminal secretion relate primarily to prevention of damages caused by lipid peroxide radicals and oxidative stress, membrane functionality, transport of lipids to the sperm membrane and temperature regulation. Moreover, finding seminal plasma proteins as indicators of semen parameters will improve assisted reproductive technologies.
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Affiliation(s)
- M J B Bezerra
- Department of Animal Science, Federal University of Ceará, Fortaleza, CE, Brazil
| | - J M Arruda-Alencar
- Department of Animal Science, Federal University of Ceará, Fortaleza, CE, Brazil
| | - J A M Martins
- Department of Animal Science, Federal University of Ceará, Fortaleza, CE, Brazil
| | - A G A Viana
- Department of Animal Science, Federal University of Ceará, Fortaleza, CE, Brazil
| | - A M Viana Neto
- Department of Animal Science, Federal University of Ceará, Fortaleza, CE, Brazil
| | - J P A Rêgo
- Department of Animal Science, Federal University of Ceará, Fortaleza, CE, Brazil
| | - R V Oliveira
- Department of Animal Science, Federal University of Ceará, Fortaleza, CE, Brazil
| | - M Lobo
- School of Pharmacy, University of Fortaleza, Fortaleza, CE, Brazil
| | - A C O Moreira
- School of Pharmacy, University of Fortaleza, Fortaleza, CE, Brazil
| | - R A Moreira
- School of Pharmacy, University of Fortaleza, Fortaleza, CE, Brazil
| | - A A Moura
- Department of Animal Science, Federal University of Ceará, Fortaleza, CE, Brazil.
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