Article
Obstetrics & Gynecology
Elisabetta Baldi, Meurig T. Gallagher, Stepan Krasnyak, Jackson Kirkman-Brown
Summary: The sixth edition of the World Health Organization manual explores extended examination methods that offer key diagnostics for investigating male reproductive system function. These methods go beyond basic semen analysis and can specifically guide the clinical characterization of fertile or infertile men. Multiparametric scoring for sperm morphological defects, sperm DNA fragmentation, and computer-assisted analysis of sperm or semen are among the most widely used and debated techniques.
FERTILITY AND STERILITY
(2022)
Article
Agriculture, Dairy & Animal Science
M. Diaz-Jimenez, A. Rota, J. Dorado, C. Consuegra, B. Pereira, F. Camillo, D. Panzani, D. Fanelli, M. Tesi, D. Monaco, M. Hidalgo
Summary: Frozen donkey sperm vitrified in straws can be directly thawed in a water bath at 43 degrees C/10 s, reducing uterine inflammatory response and promoting positive pregnancy outcomes after artificial insemination. These findings confirm the potential of using vitrified semen as an alternative for AI in jennies.
Article
Virology
Tiince Aksak, Deniz A. Satar, Ridvan Bagci, Efdal O. Gultekin, Arzu Coskun, Umut Demirdelen
Summary: This study investigated changes in sperm quality in men who had recovered and never had COVID-19. The results showed that men with COVID-19 had decreased sperm concentrations, suggesting a potential negative effect of COVID-19 on male fertility. However, further comprehensive studies with a larger sample size are needed to better understand the changes in sperm concentration.
JOURNAL OF MEDICAL VIROLOGY
(2022)
Article
Agriculture, Dairy & Animal Science
Mustafa Hitit, Mehmet Ozbek, Serife Ayaz-Guner, Huseyin Guner, Merve Oztug, Mustafa Bodu, Mesut Kirbas, Bulent Bulbul, Mustafa Numan Bucak, Mehmet Bozkurt Ataman, Erdogan Memili, Abdullah Kaya
Summary: This study compared the proteomic profiles of ram sperm with contrasting fertility phenotypes, suggesting potential protein markers for evaluation of semen quality and estimation of ram sperm fertilizing capacity. The differential abundances of sperm proteins between high and low-fertility rams indicate functional implications of the sperm proteome on male fertility.
ANIMAL REPRODUCTION SCIENCE
(2021)
Article
Andrology
Gabriela Hernandez-Silva, Aidee S. Lopez-Torres, Israel Maldonado-Rosas, Esperanza Mata-Martinez, Fernando Larrea, Victor Torres-Flores, Claudia L. Trevino, Mayel Chirinos
Summary: The study compared the functional differences between human sperm samples processed by swim-up and density gradient centrifugation, revealing significant variations in redox state, intracellular calcium oscillations, hyperactivation, protein tyrosine phosphorylation, and acrosome reaction. Sperm retrieved by density gradient centrifugation exhibited higher levels of hyperactivation and tyrosine phosphorylation compared to swim-up sperm, suggesting a greater degree of capacitation.
WORLD JOURNAL OF MENS HEALTH
(2021)
Article
Agriculture, Dairy & Animal Science
Yunhe Zong, Yanyan Sun, Yunlei Li, Gamal M. K. Mehaisen, Jingwei Yuan, Hui Ma, Aixin Ni, Yuanmei Wang, Shaimaa K. Hamad, Ahmed M. Elomda, Ahmed O. Abbas, Jilan Chen
Summary: Long-term semen cryopreservation is crucial for conservation of endangered livestock and poultry species. Two experiments were conducted to investigate the effects of glycerol concentration, removal method, and straw type on post-thawed sperm quality. The results showed that the combination of 5% glycerol and 1:2 dilution resulted in the highest fertility, and both 0.25 mL and 0.50 mL straws were suitable for the procedure.
Article
Agriculture, Dairy & Animal Science
Mengxuan Tang, Jiangli Cao, Zonggang Yu, Hailin Liu, Fang Yang, Shengqiang Huang, Jun He, Haifeng Yan
Summary: The advanced fertility of frozen semen can be achieved in both Black Silkies roosters and Youxian Partridge drakes through optimized DMA straw freezing technology and screening freeze-resistant individuals.
Article
Multidisciplinary Sciences
Hanran Mai, Junyi Ke, Miaomiao Li, Menghua He, Yanxia Qu, Fan Jiang, Simian Cai, Yufen Xu, Lanyan Fu, Lei Pi, Huazhong Zhou, Hongyan Yu, Di Che, Xiaoqiong Gu, Jinxin Zhang, Liandong Zuo
Summary: Living environment and occupational factors can influence sperm quality. This study found that factors such as proximity to high voltage lines, substations, chemical plants, and computer use were associated with sperm quality. It is recommended that couples trying to conceive avoid exposure to these risk factors.
SCIENTIFIC REPORTS
(2023)
Article
Microbiology
Aleksandar Cojkic, Adnan Niazi, Yongzhi Guo, Triin Hallap, Peeter Padrik, Jane M. Morrell
Summary: This study identified bacteria in the semen of healthy bulls using 16S sequencing, revealing differences in the microbiota between individual bulls that may be correlated with fertility. The presence of certain bacterial genera was negatively associated with bull fertility, while two genera, W5053 and Lawsonella, were enriched in bulls of low fertility, marking the first reported detection of these bacteria in bull semen samples.
Article
Biology
Luisa Zaniboni, Manuela Madeddu, Fabio Mosca, Ahmad Abdel Sayed, Stefano Paolo Marelli, Michele Di Iorio, Nicolaia Iaffaldano, Silvia Cerolini
Summary: This study compared the effect of two permeant-cryoprotectants, DMA and NMA, at different concentrations on the quality and fertility of post-thaw rooster semen. Results showed that increasing the concentration of both DMA and NMA improved semen quality and fertility. Semen cryopreserved with DMA at a concentration of 6% had the best fertility and embryo viability, while semen cryopreserved with NMA at a concentration of 2% achieved the highest fertility. Therefore, the use of NMA is recommended for cryopreservation of chicken semen.
Article
Cell Biology
Bala Krishnan Binsila, Santhanahalli Siddalingappa Archana, Laxman Ramya, Divakar Swathi, Sellappan Selvaraju, N. K. Shivakumar Gowda, Din Taran Pal, Abu Rafay, Raghavendra Bhatta
Summary: This study confirmed the important role of sperm proteins in oocyte maturation, fertilization, and early embryonic development, with variations in the proteomic composition serving as potential markers for selecting breeding bulls.
CELL AND TISSUE RESEARCH
(2021)
Article
Veterinary Sciences
Federica Turri, Emanuele Capra, Barbara Lazzari, Paola Cremonesi, Alessandra Stella, Flavia Pizzi
Summary: Predicting bull fertility is a major challenge in the dairy breeding industry and artificial insemination centers. By combining flow cytometric analysis and miRNA profiling, markers for predicting bull fertility as well as specific sperm-borne miRNAs related to fertility can be identified. The study revealed significant differences in semen quality parameters among fertility groups and established predictive models that accounted for a high variation in field fertility.
FRONTIERS IN VETERINARY SCIENCE
(2021)
Article
Virology
Shuibo Shi, Hongji Hu, Jiayao Wang, Xueming Huang, Jianhao Li, Dongshui Li
Summary: The study found that COVID-19 infection has a significant impact on semen quality, especially on the DNA fragmentation index (DFI). Healthy lifestyles did not have a significant effect on sperm parameters, DNA fragmentation, and nuclear compaction in the positive group.
Article
Agriculture, Dairy & Animal Science
R. Rostellato, V. Bonfatti, V. A. D. Dias, S. Savoia, V. Spalenza, A. Albera, P. Carnier
Summary: The study indicates that semen traits of Piemontese bulls are influenced by genetic and environmental factors, showing moderate heritability and potential for selection. However, the unfavorable relationship between volume and concentration needs to be considered in future breeding programs.
Review
Multidisciplinary Sciences
Xiucheng Lan, Meijing Wang, Xujun Yu, Liang Dong, Junjun Li, Degui Chang, Fang Yang
Summary: This study aims to investigate the effects of COVID-19 on male semen parameters and analyze the incidence and risk factors of diseases related to semen parameters. By collecting literature on the impact of COVID-19 on the male reproductive system and analyzing five cohort studies, it was found that COVID-19 can reduce semen quality and affect male fertility.