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Zhang R, Dong H, Zhao P, Shang C, Qi H, Ma Y, Gao C, Zhang D, Shen J, Lei Y, Jin Y, Lin P. Resveratrol and lycium barbarum polysaccharide improve Qinling giant panda (Ailuropoda melanoleuca Qinlingensis) sperm quality during cryopreservation. BMC Vet Res 2022; 18:23. [PMID: 34996430 PMCID: PMC8739993 DOI: 10.1186/s12917-021-03122-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 12/20/2021] [Indexed: 11/23/2022] Open
Abstract
Background Semen cryopreservation has become an essential tool for conservation efforts of the giant panda (Ailuropoda melanoleuca); however, it is severely detrimental to sperm quality. Evidence has shown that antioxidants have the potential to reverse cryopreservation-induced damage in sperm. The purpose of this study was to screen effective antioxidants that could retain sperm quality during cryopreservation and to determine the optimal dose. Seven antioxidant groups, including resveratrol (RSV = 50 μM, RSV = 100 μM, RSV = 150 μM), lycium barbarum polysaccharide (LBP = 2 mg/mL, LBP = 4 mg/mL), laminaria japonica polysaccharides (LJP = 1 mg/mL) or combination (LBP = 2 mg/mL, LJP = 1 mg/mL and RSV = 100 μM) were assessed. Results RSV, LBP, LJP, or a combination of RSV, LBP, and LJP added to the freezing medium significantly improved sperm progressive motility, plasma membrane integrity, acrosome integrity, and mitochondrial activity during the cryopreservation process. Furthermore, the activities of glutathione peroxidase and superoxide dismutase were also improved. The levels of reactive oxygen species and malondialdehyde in semen were notably reduced. Hyaluronidase activity and acrosin activity were significantly increased in LBP-treated sperm. However, sperm total motility and DNA integrity were not significantly different between the groups. Conclusions RSV (50 μM) or LBP (2 mg/mL) are the best candidate antioxidants for inclusion in the freezing medium to improve the quality of giant panda spermatozoa during semen cryopreservation.
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Affiliation(s)
- Ruixue Zhang
- College of Veterinary Medicine, Northwest A & F University, Yangling, 712100, Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Hemeng Dong
- College of Veterinary Medicine, Northwest A & F University, Yangling, 712100, Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Pengpeng Zhao
- Research Center for The Qinling Giant Panda, Rescue Base of Rare Wild Animals in Shaanxi Province, Louguantai, 710402, China
| | - Chunmei Shang
- College of Veterinary Medicine, Northwest A & F University, Yangling, 712100, Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Hang Qi
- College of Veterinary Medicine, Northwest A & F University, Yangling, 712100, Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Yongjie Ma
- College of Veterinary Medicine, Northwest A & F University, Yangling, 712100, Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Chuxi Gao
- College of Veterinary Medicine, Northwest A & F University, Yangling, 712100, Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Danhui Zhang
- Research Center for The Qinling Giant Panda, Rescue Base of Rare Wild Animals in Shaanxi Province, Louguantai, 710402, China
| | - Jiena Shen
- Research Center for The Qinling Giant Panda, Rescue Base of Rare Wild Animals in Shaanxi Province, Louguantai, 710402, China
| | - Yinghu Lei
- Research Center for The Qinling Giant Panda, Rescue Base of Rare Wild Animals in Shaanxi Province, Louguantai, 710402, China.
| | - Yaping Jin
- College of Veterinary Medicine, Northwest A & F University, Yangling, 712100, Shaanxi, China. .,Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Pengfei Lin
- College of Veterinary Medicine, Northwest A & F University, Yangling, 712100, Shaanxi, China. .,Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, 712100, Shaanxi, China.
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Canine and Feline Testicular Preservation. Animals (Basel) 2022; 12:ani12010124. [PMID: 35011230 PMCID: PMC8749737 DOI: 10.3390/ani12010124] [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: 11/26/2021] [Revised: 12/21/2021] [Accepted: 01/03/2022] [Indexed: 11/22/2022] Open
Abstract
Simple Summary Testicular cryopreservation enables the maintenance of reproductive potential, the creation of germplasm banks and the transport of genetic material between different regions. This biotechnology represents the only possibility of preserving the fertility of prepubertal animals that have already died or that need to undergo gonadotoxic treatments. Despite advances in the use of cryopreserved testicular fragments, protocols that can be used in the clinical routine of dogs and cats have not yet been established. Due to the great importance of the topic, the objective of this review is to provide an overview of the subject, approaching the main works on testicular cryopreservation in dogs and cats. Abstract The increased interest in breeding dogs and cats and their use as models for other canids and felids demand research to improve reproductive techniques. Among them, testicular cryopreservation stands out. Testicular cryopreservation enables the maintenance of reproductive capacity and allows the establishment of germplasm banks for several species of commercial value or at risk of extinction. Furthermore, it enables the transport of genetic material among different regions. It is noteworthy that this biotechnology represents the only possibility of preserving the fertility of prepubertal animals that have died, so it has great importance in the propagation of the genetic material of animals. The spermatogonia present in the testes can be cultivated in vitro and the sperm obtained can be used in artificial reproduction programs. Although advances have been achieved with the use of testicular fragments to obtain viable and functional germ cells, the establishment of protocols that can be used in clinical routine have not been concluded yet. The testicular cryopreservation process can be carried out through techniques such as slow freezing, fast freezing and vitrification. However, the protocols used for the canine and feline species are still in the experimental phase. Given the importance of the topic, the aim of this review is to draw a profile of the subject approaching the main works on testicular cryopreservation in dogs and cats.
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Amelkina O, Silva AMD, Silva AR, Comizzoli P. Transcriptome dynamics in developing testes of domestic cats and impact of age on tissue resilience to cryopreservation. BMC Genomics 2021; 22:847. [PMID: 34814833 PMCID: PMC8611880 DOI: 10.1186/s12864-021-08099-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 10/19/2021] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Fundamental knowledge of cellular and molecular mechanisms in developing testicular tissues is critical to better understand gonadal biology and responses to non-physiological conditions. The objective of our study was to (1) analyze transcriptome dynamics in developing testis of the domestic cat and (2) characterize age effects on the initial response of the tissue to vitrification. Tissues from adult and juvenile cats were processed for histology, DNA integrity, and RNA sequencing analyses before and after vitrification. RESULTS Transcriptomic findings enabled to further characterize juvenile period, distinguishing between early and late juvenile tissues. Changes in gene expression and functional pathways were extensive from early to late juvenile to adult development stages. Additionally, tissues from juvenile animals were more resilient to vitrification compared to adult counterparts, with early juvenile sample responding the least to vitrification and late juvenile sample response being closest to adult tissues. CONCLUSIONS This is the first study reporting comprehensive datasets on transcriptomic dynamic coupled with structural analysis of the cat testis according to the age and exposure to cryopreservation. It provides a comprehensive network of functional terms and pathways that are affected by age in the domestic cat and are either enriched in adult or juvenile testicular tissues.
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Affiliation(s)
- Olga Amelkina
- Smithsonian Conservation Biology Institute, National Zoological Park, Washington, DC, USA
| | - Andreia M da Silva
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid - UFERSA, Mossoró, RN, Brazil
| | - Alexandre R Silva
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid - UFERSA, Mossoró, RN, Brazil
| | - Pierre Comizzoli
- Smithsonian Conservation Biology Institute, National Zoological Park, Washington, DC, USA.
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