Myoinositol Supplementation of Freezing Medium Improves the Quality-Related Parameters of Dog Sperm
Overview
Affiliations
Oxidative stress during freeze-thaw procedures results in reduced semen fertility. A decrease in free radical levels can improve the post-thaw sperm quality. We examined the effects of myoinositol supplementation in freezing medium on the structure and function of cryopreserved dog sperm. Pooled ejaculates were diluted with buffer without or with myoinositol (1 or 2 mg/mL). Analysis of fresh semen revealed that the optimal concentration of myoinositol was 1 mg/mL, and this concentration was used in further experiments. Post-thaw semen quality in the myoinositol-supplemented group was superior ( 0.05) compared with that in the control group in terms of motility (57.9 ± 0.4% vs. 47.8 ± 0.2%), sperm viability (57.5 ± 0.5% vs. 44.6 ± 0.6%), intact plasma membrane (56.6 ± 0.4% vs. 46.2 ± 0.6%), and acrosome membrane (59.3 ± 0.5% vs. 51.8 ± 0.5%). In addition, sperm in the myoinositol-supplemented group showed a significantly lower expression of pro-apoptotic () and mitochondrial reactive oxygen species (ROS) modulator () genes but higher expression of anti-apoptotic (), and protamine-related ( and ) genes compared with that in the control group. Therefore, myoinositol supplementation before freezing can protect against oxidative stress and improve post-thaw dog sperm quality.
Ghaemi M, Seighali N, Shafiee A, Beiky M, Kohandel Gargari O, Azarboo A Food Sci Nutr. 2024; 12(11):8515-8524.
PMID: 39619962 PMC: 11606893. DOI: 10.1002/fsn3.4427.
Antioxidant Effects of Myo-Inositol Improve the Function and Fertility of Cryopreserved Boar Semen.
Osman R, Lee S, Almubarak A, Han J, Yu I, Jeon Y Antioxidants (Basel). 2023; 12(9).
PMID: 37759976 PMC: 10525680. DOI: 10.3390/antiox12091673.
Myo-inositol improves the viability of boar sperm during liquid storage.
Jawad A, Oh D, Choi H, Kim M, Cai L, Lee J Front Vet Sci. 2023; 10:1150984.
PMID: 37565079 PMC: 10411888. DOI: 10.3389/fvets.2023.1150984.
Role of antioxidants in fertility preservation of sperm - A narrative review.
Qamar A, Naveed M, Raza S, Fang X, Roy P, Bang S Anim Biosci. 2022; 36(3):385-403.
PMID: 36397685 PMC: 9996255. DOI: 10.5713/ab.22.0325.
Pardede B, Maulana T, Kaiin E, Agil M, Karja N, Sumantri C Vet World. 2021; 14(9):2473-2481.
PMID: 34840468 PMC: 8613797. DOI: 10.14202/vetworld.2021.2473-2481.