Results 91 to 100 of about 150,553 (148)

Assessing sperm DNA fragmentation post-cryopreservation in infertility cases [PDF]

Scripta Medica
Background/Aim: Sperm cryopreservation is an important practice utilised in many assisted reproductive techniques. The potential biological effects of cryopreservation on sperm DNA damage in infertile males need to be better understood for therapeutic ...
Dayal Ram, Mehrotra Arpit, Sood Abhilasha   +2 more
doaj   +1 more source

Using Sperm Posthumously: National Guidelines Versus Practice

, 2010
Under pressure from involved families and time limitations, Israeli judges tend to authorize postmortem sperm retrieval and freezing, even in unmarried men and in contradiction to current, albeit non-legally binding, guidelines of the Attorney General ...
Kaufman, Sarit, Strassburger, Deborah, Raziel, Arieh, Umansky, Ana, Ron-El, Raphael, Friedler, Shevach   +5 more
core   +1 more source

The effect of two pre-cryopreservation single layer colloidal centrifugation protocols in combination with different freezing extenders on the fragmentation dynamics of thawed equine sperm DNA [PDF]

, 2012
Variability among stallions in terms of semen cryopreservation quality renders it difficult to arrive at a standardized cryopreservation method. Different extenders and processing techniques (such us colloidal centrifugation) are used in order to ...
Fernández, Alvaro, Gosálvez Berenguer, Jaime, Serres Dalmau, María Consolacion, Gutiérrez Cepeda, Luna, Crespo Castejón, Francisco, Ramírez, Miguel Ángel, Luna Gutiérrez-Cepeda, Miguel Ángel Ramírez, Francisco Crespo, Jaime Gosálvez, Consuelo Serres, Álvaro Fernández   +11 more
core   +1 more source

Synergistic Effects of Thyroxine and Nano‐Melatonin on Post‐Thaw Sperm Quality, Antioxidant Defence and Fertility of Cryopreserved Simmental Bull Semen

Veterinary Medicine and Science, Volume 12, Issue 6, November 2026.
Effects of thyroxine (T) and nano‐melatonin (NM) supplementation on cryopreserved Simmental bull semen were evaluated. The combination of thyroxine (0.5 µg/dL) and nano‐melatonin (30 µg/dL) significantly improved post‐thaw sperm motility, membrane integrity, antioxidant status, and fertility while reducing oxidative stress and apoptosis. These findings
Marwa Abonagy, Ahmed Arisha, Maha Salama, Mohey Ashour, Mustafa Shukry, Sameh Shedeed, Ahmed Shehabeldin, Nagi El‐Shafai, Zein Ibrahim, Shawky Mahmoud, Michel Saad, Ahmed Alameen, Rasha Yassin Elkhidr, Osama Hassan Ali, Arafat Khalphallah, Enas Elmeligy, Khaled Abdulaziz Khesruf, Enas Ahmed Abdelhafez, Alaa Algabary   +18 more
wiley   +1 more source

Current status of sperm cryopreservation in biomedical research fish models: Zebrafish, medaka, and Xiphophorus [PDF]

, 2009
Aquarium fishes are becoming increasingly important because of their value in biomedical research and the ornamental fish trade, and because many have become threatened or endangered in the wild.
Yang, Huiping, Tiersch, Terrence R.
core   +1 more source

The use of deidentified organ donor testes for research

Andrology, Volume 14, Issue 8, Page 2359-2372, November 2026.
Abstract Our knowledge of testis development and function mainly comes from research using mammalian model organisms, primarily the mouse. However, there are integral differences between men and other mammalian species regarding cellular composition and expression profiles during fetal and post‐natal testis development and in the mature testis ...
Marina V. Pryzhkova, Marnie W. Skinner, Juliana I. Candelaria, Stephen R. Wellard, Philip W. Jordan   +4 more
wiley   +1 more source

Cryoprotectant effects of mangiferin on the quality of frozen-thawed boar sperm

Frontiers in Veterinary Science
Boar sperm is particularly vulnerable to damage at low temperatures, leading to reduced efficiency in cryopreservation. This study aimed to analyze the effect of mangiferin (Man) on boar sperm cryopreservation efficiency. Various concentrations of Man (0,
Minhao Zhang, Zhaobo Luo, Weipu Mao, Guangyuan Zhang, Guangyuan Zhang, Peng Gu   +5 more
doaj   +1 more source

Impact of Reactive Temperament on Bull Fertility in Natural Service

Reproduction in Domestic Animals, Volume 61, Issue 11, November 2026.
ABSTRACT The study aimed to evaluate the influence of temperament on semen quality and fertility in Nelore bulls. Two groups were selected based on ethological analysis, consisting of animals with either calm temperament (CA, n = 8) or reactive temperament (RE, n = 8).
Larissa de Almeida Martin, Mariana Karla Francolino da Silva, Marcelo Sant’Ana Borges, Luana Gomes Fernandes, Richardt Gama Landgraf, Fábio Morato Monteiro, André Maciel Crespilho   +6 more
wiley   +1 more source

Genome‐Wide Characterization of Heterozygosity‐Rich Regions in Kazakh Native Sheep Breeds

Animal Genetics, Volume 57, Issue 5, October 2026.
ABSTRACT Heterozygosity‐rich regions (HRR) are genomic segments characterized by high heterozygosity that may arise from admixture, introgression, or balancing selection and may harbor loci associated with adaptation and fitness‐related traits. This study aimed to characterize HRR patterns in five Kazakh sheep breeds using a publicly available ...
Sholpan Bakhtybekkyzy, Zarina Orazymbetova, Aizhan Mussayeva, Aidana Bekitayeva, Ajoy Mandal, Hasan Baneh   +5 more
wiley   +1 more source

Short-Term Low-Temperature Storage and Cryopreservation of Qihe Crucian Carp (Carassius auratus) Sperm

Animals
Qihe crucian carp Carassius auratus is one of the major economic aquacultural fish species in China. Due to environmental degradation and the impact of the reproduction mode of gynogenesis, the wild population of Qihe crucian carp exhibits an extremely ...
Xi Shi, Jiayin Xu, Yujie Hou, Zhen Wei, Lufang Guo, Xiao Ma, Limin Wu, Wenge Ma, Xue Tian, Khor Waiho, Xuejun Li   +10 more
doaj   +1 more source