Introduction Sperm–egg interaction is one of the crucial steps for fertilization in organisms, and various molecular events that are highly regulated occur to achieve proper fertilization. In comparison with those of mammalian species, avian
Yoshinobu Ichikawa, Mei Matsuzaki, Shusei Mizushima, and Tomohiro Sasanami
G Hughes and S Martins da Silva
Introduction Cryopreserved spermatozoa are used routinely in assisted reproductive technology (ART) worldwide. The origin of sperm cryobiology spans back several centuries to 1776 when Lazzaro Spallanzani, an Italian priest and scientist
Dimitra Apostolia Androni, Sophie Dodds, Mathew Tomlinson, and Walid E Maalouf
Introduction Sperm cryopreservation has achieved widespread recognition as an invaluable medical intervention for preserving male fertility, particularly before sterilising cancer therapy, owing to the simplicity and low costs associated with
Jennifer B Nagashima, Marcia de Almeida Monteiro Melo Ferraz, Sarah H Kamen, and Nucharin Songsasen
, Amstislavsky et al. 2012 ). Previous assisted reproduction research in red wolves has characterized semen and optimized sperm cryopreservation and thawing protocols ( Goodrowe et al. 1998 , Koehler et al. 1998 , Franklin et al. 2018 , Ferraz et al
Fabien Joao, Cyntia Duval, Marie-Claire Bélanger, Julie Lamoureux, Cheng Wei Xiao, Senem Ates, Moncef Benkhalifa, and Pierre Miron
Introduction Classical semen assessment consists of the analysis of standard descriptive sperm parameters such as concentration, motility and sperm morphology ( World Health Organization 2010 ). However, this analysis is limited and does not
Nkoyenum Pamela Olisa, Lisa Campo-Engelstein, and Sarah Martins da Silva
.1%), intracytoplasmic sperm injection (ICSI) (34.8%), either alone (25.0%) or combined with surgical sperm retrieval (9.8%), or treatment using donor sperm (4.5%). Although the questionnaire asked clinicians to select an option that best represented their routine
Shen Chuen Khaw, Zhen Zhe Wong, Richard Anderson, and Sarah Martins da Silva
parameters such as oligozoospermia, asthenozoospermia and teratozoospermia or a combination of these, or a complete absence of sperm in the ejaculate (azoospermia), which is identified in 10–15% of infertile men ( Rowe et al. 2000 , Gudeloglu & Parekattil
Huidrom Yaiphaba Meitei, Shubhashree Uppangala, Vani Lakshmi R, Guruprasad Kalthur, and Satish Kumar Adiga
our knowledge, four studies explored semen characteristics in vaccinated individuals to conclude that mRNA COVID vaccination is not detrimental to semen characteristics such as volume, sperm concentration, and motility ( Gonzalez et al. 2021
Steven Reynolds, Sarah J Calvert, Stephen J Walters, Martyn N Paley, and Allan A Pacey
Introduction Asthenozoospermia is defined as <32% progressive sperm motility in semen, and while it can be readily identified at semen analysis, the underlying causes are not known ( WHO 2010 ). A number of studies have examined
Rumiana Ganeva, Dimitar Parvanov, Denitsa Velikova, Magdalena Vasileva, Kristina Nikolova, and Georgi Stamenov
( Mackenna 1995 ). Currently, routine semen analysis, based on the evaluation of sperm count, sperm mobility, and morphology alone, provides valuable but superficial information about male fertility status. Despite being classified as normozoospermic, some
