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Yan K, Liu X, Li L, Zhu S, Zheng L, He S, Jia X, Dong W, Liu Y, Lu Z, Yang F. Ultrasound-assisted deep eutectic solvents extraction of polysaccharides from Loquat leaf: Process optimization and bioactivity study. Int J Biol Macromol 2024; 274:133308. [PMID: 38908619 DOI: 10.1016/j.ijbiomac.2024.133308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 05/13/2024] [Accepted: 06/19/2024] [Indexed: 06/24/2024]
Abstract
Loquat leaves are the by-product of loquat fruit production. Polysaccharides are one of the main active ingredients in loquat leaves. In this study, polysaccharides were extracted from loquat leaves by ultrasonic-assisted deep eutectic solvents (DESs) extraction method. Further, the extracted crude loquat leaf polysaccharides (CLLP) were purified and separated via S-8 resin and DEAE-52 cellulose column chromatography, respectively. Additionally, the effects of polysaccharides on activity of sperm in boar semen preserved in medium at 17 °C, were evaluated preliminarily. DES, composed of choline chloride/ethylene glycol (1:6, molar ratio), was proved to be the suitable solvent for LLP extraction. The optimized extraction conditions were water content 44 %, liquid-solid ratio 1:29 (g/g), extraction temperature 61 °C and extraction time 98 min. Under these conditions, the LLP yield was 57.82 ± 1.50 mg/g. A homogeneous polysaccharide (LLP1-2, Mw: 2.17 × 104 Da) was isolated from CLLP. Its total sugar, uronic acid and protein contents were 76.31 ± 1.25 %, 14.19 ± 0.67 % and 3.28 ± 0.42 %, respectively. Further, 800 μg/mL LLP1-2 could effectively enhance the antioxidant activity of sperm. This study laid a foundation for DESs and column chromatography in the field of polysaccharide extraction and separation, proving that LLP can be used as a natural antioxidant for sperm preservation.
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Affiliation(s)
- Ke Yan
- College of Forestry, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xianglin Liu
- College of Forestry, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Lin Li
- College of Forestry, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Shuyu Zhu
- College of Forestry, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Lijuan Zheng
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Shuyang He
- College of Forestry, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xiaomin Jia
- School of Life Sciences, Yan'an University, Yan'an, Shaanxi 716000, China
| | - Wuzi Dong
- Shaanxi Dayi Xunlong Biotechnology Co., LTD, Yangling, Shaanxi 712100, China
| | - Yupeng Liu
- National Engineering & Technology Research Center of Forest Chemical Industry, Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing, Jiangsu 210037, China
| | - Zhoumin Lu
- College of Forestry, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Fangxia Yang
- College of Forestry, Northwest A&F University, Yangling, Shaanxi 712100, China; Shaanxi Provincial Key Laboratory of Economic Plant Resources Development and Utilization, College of Forestry, Northwest A&F University, Yangling, Shaanxi 712100, China.
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Di Iorio M, Lauriola F, Rusco G, Antenucci E, Schiavitto M, Iaffaldano N. Cryopreserving Rabbit Semen: Impact of Varying Sperm Concentrations on Quality and the Standardization of Protocol. Vet Sci 2023; 11:9. [PMID: 38250915 PMCID: PMC10818829 DOI: 10.3390/vetsci11010009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/06/2023] [Accepted: 12/20/2023] [Indexed: 01/23/2024] Open
Abstract
This study aimed to investigate the impact of sperm concentrations on the in vitro quality of cryopreserved rabbit semen. The semen pools (n = 8, from 80 donors) were split into five aliquots with final sperm concentrations of 15, 25, 35, 55, and 75 × 106 per straw. The sperm motility parameters (CASA system) and membrane integrity (flow cytometric analysis) were both evaluated at various stages of the cryopreservation process: fresh semen dilution, cooling, equilibration, and immediately after and 30 min post-thawing. The results indicated the significant influence of the sperm concentration on the total motility (TM) and progressive motility (PM), with a consistent decline in all sperm variables over the time points. Notably, the semen with a final concentration of 15 × 106 exhibited a higher TM and PM after cooling and equilibration. The post-thawing quality (TM, PM) was higher (p < 0.05) in the mid-range sperm concentrations of 25 × 106 (49.9% and 19.7%) and 35 × 106 (46.2% and 19.7%) compared to the other concentrations. This study demonstrated that the sperm concentration per straw played a significant role in specific phases of the cryopreservation process. These findings contribute valuable insights for refining and standardizing the cryopreservation protocol for rabbit semen, emphasizing the importance of the sperm concentration.
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Affiliation(s)
- Michele Di Iorio
- Department of Agricultural, Environmental and Food Sciences, University of Molise, Via De Sanctis snc, 86100 Campobasso, Italy; (M.D.I.); (F.L.); (G.R.); (E.A.)
| | - Fabrizio Lauriola
- Department of Agricultural, Environmental and Food Sciences, University of Molise, Via De Sanctis snc, 86100 Campobasso, Italy; (M.D.I.); (F.L.); (G.R.); (E.A.)
| | - Giusy Rusco
- Department of Agricultural, Environmental and Food Sciences, University of Molise, Via De Sanctis snc, 86100 Campobasso, Italy; (M.D.I.); (F.L.); (G.R.); (E.A.)
| | - Emanuele Antenucci
- Department of Agricultural, Environmental and Food Sciences, University of Molise, Via De Sanctis snc, 86100 Campobasso, Italy; (M.D.I.); (F.L.); (G.R.); (E.A.)
| | - Michele Schiavitto
- Italian Rabbit Breeders Association (ANCI-AIA), Volturara Appula, 71030 Foggia, Italy;
| | - Nicolaia Iaffaldano
- Department of Agricultural, Environmental and Food Sciences, University of Molise, Via De Sanctis snc, 86100 Campobasso, Italy; (M.D.I.); (F.L.); (G.R.); (E.A.)
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Li Y, Qin S, Cui W, Zhao F, He M, Jiang Z. Progress on the roles of zinc in sperm cryopreservation. Theriogenology 2023; 211:134-141. [PMID: 37619526 DOI: 10.1016/j.theriogenology.2023.08.014] [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: 10/17/2022] [Revised: 06/06/2023] [Accepted: 08/17/2023] [Indexed: 08/26/2023]
Abstract
One of the effective methods for the long-term preservation of mammalian genetic resources is the cryopreservation of semen. However, a number of parameters, including diluents, the rate of freezing and thawing, cryoprotectants, etc., can easily alter the survival of frozen-thawed sperm. Numerous studies have documented the addition of a variety of zinc compounds, to the diluents used to cryopreserve sperm. The primary objective of this review is to briefly describe that adding zinc to diluents as an antioxidant significantly enhances frozen-thawed sperm quality. Second, a summary of the present understanding of zinc's molecular mechanism on semen cryopreservation is provided. Thirdly, this study addresses that nanoparticles of zinc can offer suggestions for raising cryopreservation effectiveness.
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Affiliation(s)
- Yuanyou Li
- College of Animal Science and Technology, Key Laboratory of Animal Genetic, Breeding and Reproduction in Shaanxi Province, Northwestern A&F University, Yangling, Shaanxi, 712100, China.
| | - Shaoyu Qin
- College of Animal Science and Technology, Key Laboratory of Animal Genetic, Breeding and Reproduction in Shaanxi Province, Northwestern A&F University, Yangling, Shaanxi, 712100, China.
| | - Wenfei Cui
- College of Animal Science and Technology, Key Laboratory of Animal Genetic, Breeding and Reproduction in Shaanxi Province, Northwestern A&F University, Yangling, Shaanxi, 712100, China.
| | - Fan Zhao
- College of Animal Science and Technology, Key Laboratory of Animal Genetic, Breeding and Reproduction in Shaanxi Province, Northwestern A&F University, Yangling, Shaanxi, 712100, China.
| | - Meiling He
- College of Animal Science and Technology, Key Laboratory of Animal Genetic, Breeding and Reproduction in Shaanxi Province, Northwestern A&F University, Yangling, Shaanxi, 712100, China.
| | - Zhongliang Jiang
- College of Animal Science and Technology, Key Laboratory of Animal Genetic, Breeding and Reproduction in Shaanxi Province, Northwestern A&F University, Yangling, Shaanxi, 712100, China.
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Bayomy MFF, Hassab El-Nabi SE, El Kassas TA, Attia ZI, Saeed AM, Taha HSA, Alagawany M, Galosi L, Biagini L, El-Kassas S. Extender Supplementation with Glutathione (GSH) and Taurine Improves In Vitro Sperm Quality and Antioxidant Status of New Zealand Rabbits during Chilled Storage for up to 72 hours. Vet Med Int 2023; 2023:8339591. [PMID: 37732161 PMCID: PMC10509003 DOI: 10.1155/2023/8339591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 08/26/2023] [Accepted: 08/30/2023] [Indexed: 09/22/2023] Open
Abstract
This study assessed the influence of supplementing the rabbit semen extender with various concentrations of glutathione (GSH) and taurine at 24, 48, and 72 h postchilling at 5°C. Semen samples were collected from 20 New Zealand bucks, and ejaculates with standard color, motility (>85%), about 0.5 mL volume, and ∼400 × 106/mL concentration were used and diluted with extenders supplemented with 0.5, 1, and 2 mM of GSH and 1, 5, and 10 mM of taurine and chilled at 5°C. Nonsupplemented samples were used as a control. Sperm's progressive motility, acrosome reaction, and extracellular oxidative stress biomarkers such as MDA contents and GPx, SOD, and CAT concentrations and intracellular transcriptomic levels of SOD and CAT genes were assessed. GSH and taurine supplementation improved the sperm's kinetics by reducing cooling-associated stress, which was ascertained by lowering MDA concentration and increasing SOD, CAT, and GPx concentrations (P < 0.05). Increasing the levels of antioxidant enzymes in the extender was due to the increasing mRNA copies of the SOD and CAT genes (P < 0.05). Furthermore, GSH and taurine maintained the fructose levels in the extender and lowered the GPT levels, which implies sperm membrane stability is maintained through GSH and taurine supplementation. GSH and taurine supplementation to the extender had protective influences on the in vitro rabbit semen quality during chilled storage for up to 72 h, which were remarkable with increasing supplementation dose and cooling time at 5°C.
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Affiliation(s)
- Mohamed F. F. Bayomy
- Zoology Department, Faculty of Science, Menoufia University, Shibin Al Kawm, Egypt
- General Biology Department, Center of the Basic Sciences, Misr University for Science and Technology (MUST), 6th of October City, Egypt
| | | | - Tahany A. El Kassas
- Zoology Department, Faculty of Science, Menoufia University, Shibin Al Kawm, Egypt
| | - Zeinab I. Attia
- Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - Ayman M. Saeed
- Biotechnology Department, Animal Production Research Institute, Giza, Egypt
| | - Heba S. A. Taha
- Department of Genetics, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Mahmoud Alagawany
- Poultry Department, Agriculture Faculty, Zagazig University, Zagazig 44519, Egypt
| | - Livio Galosi
- School of Bioscience and Veterinary Medicine, University of Camerino, Matelica 62024, Italy
| | - Lucia Biagini
- School of Bioscience and Veterinary Medicine, University of Camerino, Matelica 62024, Italy
| | - Seham El-Kassas
- Animal, Poultry, and Fish Breeding and Production, Department of Animal Wealth Development, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafr el-Sheikh, Egypt
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Mohammed KM, Darwish GM, Rawash ZM, Taha AM. Cryopreservation of rabbit semen: impacts of permeable and non-permeable mixture of cryoprotectant, male group individuality, freezing rate, semen package size and antioxidant bovine serum albumin on rabbit semen freezability. WORLD RABBIT SCIENCE 2022. [DOI: 10.4995/wrs.2022.17303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
In the present study, three experiments were designed to identify the most appropriate technique for freezing rabbit semen. Experiment 1 aimed to determine the optimal levels of dimethyl sulfoxide (DMSO) contents in freezing medium and their effects on individual bucks. Semen ejaculates for each buck (n=15 bucks) were mixed and split into three portions for extension with a freezing medium containing varying concentrations of DMSO (0.75, 1.0, and 1.4 M). Diluted semen samples were packaged in 0.25 mL straws and suspended above liquid nitrogen (LN) for 10 min, then dipped in LN. A few days after freezing, post-thaw semen evaluation was assessed, and according to the results, six bucks and an extender containing 0.75 M of DMSO were used for experiments 2 and 3. In experiment 2, the pooled semen from 6 bucks was divided into two portions for packaging in two straw sizes (0.25 and 0.50 mL). Each straw size was divided into five groups and suspended at different heights above LN (2, 4, 6, 8, and 10 cm) for 10 minutes before being preserved in LN. In experiment 3, the pooled semen was divided into four portions for dilution with freezing medium containing different concentrations of bovine serum albumin (BSA; 0, 2.5, 5.0, and 7.5 mg/mL). Semen samples were packaged in a 0.50 mL straw and suspended 10 min, 4 cm above LN for freezing. Pre-freezing and post-thawing, semen samples were evaluated for semen quality. Results showed that the extender containing 0.75 M DMSO had higher significant values for post-thaw sperm motility, longevity, acrosome integrity and sperm plasma membrane permeability. Bucks’ individuality had significant effects on post-thaw motility, acrosome and sperm plasma membrane integrity. A significant interaction was recorded between DMSO concentrations and bucks’ individuality on sperm longevity. Semen package sizes had no significant effects on the evaluated parameters. Semen was frozen at 2 and 4 cm above LN had significantly better post-thaw quality. BSA at concentrations 5 and 7.5 mg/mL improved recovery rates of acrosome integrity and sperm membrane permeability. DMSO 0.75 M and freezing 4 cm above LN seem to be more adequate for rabbit semen cryopreservation. The appropriate level of DMSO differs between bucks, as the post-thaw sperm longevity is affected. BSA enhanced acrosome and sperm membrane integrity. Results obtained will need further investigation to be confirmed in the field.
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Abdelnour SA, Hassan MA, El‐Ratel IT, Essawi WM, El‐Raghi AA, Lu Y, Sheiha AM. Effect of addition of L‐carnitine to cryopreservation extender on rabbit post‐thaw semen parameters, antioxidant capacity, mitochondrial function, apoptosis, and ultrastructure changes. Reprod Domest Anim 2022; 57:902-911. [DOI: 10.1111/rda.14139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 04/26/2022] [Accepted: 04/27/2022] [Indexed: 11/29/2022]
Affiliation(s)
- Sameh A. Abdelnour
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources College of Animal Science and Technology Guangxi University Nanning China
- Department of Animal Production Faculty of Agriculture Zagazig University Zagazig 44511 Egypt
| | - Mahmoud A.E. Hassan
- Animal Production Research Institute (APRI) Agriculture Research Centre Ministry of Agriculture Dokki Giza 12619 Egypt
| | - Ibrahim T. El‐Ratel
- Department of Poultry Production Faculty of Agriculture Damietta University Damietta 34517 Egypt
| | - Walaa M. Essawi
- Department of Theriogenology Faculty of Veterinary Medicine Aswan University Aswan 81528 Egypt
| | - Ali Ali El‐Raghi
- Department of Animal Production Faculty of Agriculture Damietta University Damietta 34517 Egypt
| | - Yangqing Lu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources College of Animal Science and Technology Guangxi University Nanning China
| | - Asmaa M. Sheiha
- Department of Animal Production Faculty of Agriculture Zagazig University Zagazig 44511 Egypt
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