Results 71 to 80 of about 18,475 (222)

Cryopreservation enhances vacuolization in human spermatozoa

Asian Pacific Journal of Reproduction, 2017
Objective: To evaluate the impact of freezing–thawing on the human sperm head vacuoles and the potential value of motile sperm organelle morphology examination for selection of frozen-thaw spermatozoa.Methods: In 30 sperm samples from infertile men ...
Nahid Yari, Sahabeh Etebary, Mohammad Ali Khalili, Ali Reza Talebi   +3 more
doaj   +1 more source

Fertility preservation access among female adolescents and young adults with cancer: A systematic review

Cancer, Volume 132, Issue 13, 1 July 2026.
Abstract Adolescents and young adults (AYAs; aged 15–39 years) with cancer face significant threats to future fertility. Despite fertility preservation (FP) guidelines, disparities in access persist, particularly among female AYAs. This systematic review aims to describe FP access and explore disparities by sociodemographic and clinical factors among ...
Marcela Algave, Sophie Junak, Rebecca Schnall, Melissa P. Beauchemin   +3 more
wiley   +1 more source

Effects of Green Tea Extract and (+)‐Catechin Hydrate on Sperm Quality and Seminal Plasma Antioxidant Activity: An In Vitro Study in Rams

Veterinary Medicine and Science, Volume 12, Issue 4, July 2026.
This study investigated the in vitro effects of green tea extract (GTE) and (+)‐catechin on semen quality parameters of Arabi rams during chilled storage. The results showed that GTE and catechin enhance semen parameters during chilled storage, with optimal effects at specific concentrations.
Robab Nabhani, Saleh Tabatabaei Vakili, Khalil Mirzadeh   +2 more
wiley   +1 more source

Semen Cryopreservation in Testicular Cancer: Before or After Orchidectomy?

Andrology, Volume 14, Issue 5, Page 1272-1281, July 2026.
ABSTRACT Background Fertility preservation in patients with testicular cancer remains a clinical priority, yet the optimal timing for sperm cryopreservation—before or after orchidectomy—remains a matter of debate. Objectives The aim of this study was to determine the optimal timing for semen cryopreservation and the best‐quality sample for ART.
Alessandra Buonacquisto, Carlotta Pozza, Gaia Cicolani, Anna Chiara Conflitti, Luisa Caponecchia, Serena Bianchini, Enrico Delli Paoli, Marta Tenuta, Daniele Gianfrilli, Andrea M. Isidori, Francesco Lombardo, Francesco Pallotti, Donatella Paoli   +12 more
wiley   +1 more source

Cryopreservation of Pike Perch Sperm in Hatchery Conditions

, 2008
Experiments were carried out on pike perch (Sander lucioperca L.) to find a method for stripping sperm without contamination by urine, to determine sperm concentration, and to fertilize large batches of eggs with cryopreserved sperm.
Urbányi, Béla, Horváth, László, Horváth, Ákos, Bokor, Zoltán   +3 more
core  

Sperm cryopreservation: effects on chromatin structure.

, 2013
Cryopreservation is a technique that can keep sperm alive indefinitely, enabling the conservation of male fertility. It involves the cooling of semen samples and their storage at -196°C in liquid nitrogen.
Francesco Lombardo, LENZI, Andrea, GANDINI, Loredana, LOMBARDO, Francesco, Loredana Gandini, Donatella Paoli, Andrea Lenzi, PAOLI, Donatella   +7 more
core   +1 more source

Optimization of sterlet sperm concentration for cryopreservation

, 2021
One of the critical points in low temperature storage is the expense of storage capacities. Moreover, sperm concentration in a sample is not only a parameter for effective use of a cryobanks but also a parameter affecting cryopreservation outcomes ...
Nascimento, João Pedro, Kholodnyy, Vitaliy, Boryshpolets, Sergii, Stechkina, Taisiya, Dzyuba, Viktoriya, Horokhovatskyi, Yevhen, Dzyuba, Borys, Rodina, Marek   +7 more
core   +1 more source

Spotted wolffish (Anarhichas minor) sperm cryopreservation in 5-mL cryovials [PDF]

, 2020
In spotted wolffish Anarhichas minor aquaculture, cryopreservation is used to secure sperm availability throughout the entire spawning season. Under current protocols, sperm is cryopreserved in 0.5-mL straws. This implies thawing a considerable number of
Flengstad, Stian, Beirão, José, Babiak, Igor   +2 more
core   +1 more source

Protective effect and mechanisms of marine antifreeze protein product on sperm cryodamage in livestock

浙江大学学报. 农业与生命科学版, 2020
Antifreeze proteins (AFPs), a class of antifreeze substances, were initially found to bind to ice crystals in vivo, thereby contributing to inhibition of the growth of ice crystals that enabled polar fish to survive at the temperatures below freezing ...
HENG Nuo, GUO Yong, CHEN Yu, WANG Liang, SHENG Xihui, WANG Xiangguo, XING Kai, NI Hemin, QI Xiaolong   +8 more
doaj   +1 more source

Clinical Challenges in Transition to Adult Care for Young People With Endocrinopathies

Clinical Endocrinology, Volume 105, Issue 1, Page 14-21, July 2026.
ABSTRACT The complexity of transition of pediatric patients to adult care is well recognized, with a multidisciplinary approach widely agreed to be essential. Despite extensive existing literature in this area, practical guidance as to the management of specific medical aspects and how to address these with patients and families is lacking, with little
Margaret Zacharin, Quynh‐Nhu Nguyen
wiley   +1 more source