Sperm form and function in the absence of sperm competition Gerhard van der Horst and Liana Maree Department of Medical Bioscience, University of the Western Cape, Bellville, South Africa SUMMARY Sperm competition is a post-copulatory, sexual selection force that, together with phylogeny and fertilization mode, has been regarded as one of the main factors explaining [...]
An improved experimental model for understanding the impact of sperm DNA fragmentation on human pregnancy following ICSI Nuñez-Calonge R, Caballero P, López-Fernández C, Guijarro JA, Fernández JL, Johnston S, Gosálvez J Clínica Tambre, Madrid, Spain Using donor oocytes of proven fertility, the effect of sperm DNA fragmentation (SDF) and motility on reproductive success was examined [...]
Effect of relaxin on human sperm functions Ferlin A, Menegazzo M, Gianesello L, Selice R, Foresta C University of Padova, Department of Histology, Microbiology and Medical Biotechnologies, Section of Clinical Pathology and Center for Male Gamete Cryopreservation, Padova, Italy Relaxin is a circulating hormone with functions in pregnancy, parturition, and other aspects of female reproduction. [...]
Characterization of the kisspeptin system in human spermatozoa Pinto FM, Cejudo-Román A, Ravina CG, Fernández-Sánchez M, Martín-Lozano D, Illanes M, Tena-Sempere M, Candenas ML Instituto de Investigaciones Químicas, CSIC-Universidad de Sevilla, Spain Kisspeptin, the product of the KISS1 gene, plays an essential role in the regulation of spermatogenesis acting primarily at the hypothalamic level of [...]
Study for the diagnostic evaluation of the sperm DNA fragmentation index in a patient population of the fertility unit Albert Blanco, Jordi Ramis, Carlos Aulesa, José Mª Gris Laboratorio de Andrología, Unidad de Laboratorios Clínicos Vall d’Hebron, Barcelona. Servicio de Esterilidad Hospital Maternal Vall d’Hebron. Summary: Introduction: At present, parameters obtained via the common seminogram [...]
Noninsulin-dependent diabetes mellitus: effects on sperm morphological and functional characteristics, nuclear DNA integrity and outcome of assisted reproductive technique G. A. Rama Raju, G. Jaya Prakash, K. Murali Krishna, K. Madan, T. Siva Narayana & C. H. Ravi Krishna Gynecology Division, Krishna IVF Clinic, Visakhapatnam, India; Embryology Research Group, Krishna IVF Clinic, Visakhapatnam, India; Genetic [...]
CASA derived human sperm abnormalities: correlation with chromatin packing and DNA fragmentation T. Sivanarayana, Ch. Ravi Krishna, G. Jaya Prakash, K. Murali Krishna, K. Madan, B. Sireesha Rani, G. Sudhakar, G. A. Rama Raju Gynecology Division, Krishna IVF Clinic, Visakhapatnam, India; Embryology Research Group, Krishna IVF Clinic, Visakhapatnam, India; Genetics Department, Krishna IVF Clinic, Visakhapatnam, [...]
Reduced glutathione content in human sperm is decreased after cryopreservation: Effect of the addition of reduced glutathione to the freezing and thawing extenders Gadea J, Molla M, Selles E, Marco MA, Garcia-Vazquez FA, Gardon JC Dept. Physiology, University of Murcia, Murcia 30100, Spain In this study, total glutathione content was determined in human spermatozoa before [...]
Evaluation of sperm quality at a national level: Logistic, recruitment, analytical and statistical problems encountered in switzerland Josefina Vargas, Roumen Parapanov, Marc Van Den Bergh, Eric Stettler, Pierre Crettaz, Alfred Senn, Marc Germond Fondation Faber, Lausanne, Switzerland, Kantonspital Baden Ag, Fertilitätslabor, Switzerland, Swiss Army Medical Services, Switzerland, Federal Office of Public Health, Switzerland Aim: For [...]
Impact of spontaneous smoking cessation on sperm quality: case report E. Prentki Santos, S. López-Costa, P. Chenlo, M. N. Pugliese, S. Curi, J. Ariagno, H. Repetto, M. Sardi, L. Palaoro & G. Mendeluk Laboratory of Andrology and Male Fertility, Clinical Hospital, INFIBIOC, University of Buenos Aires, Argentina; Urology Division, Tobacco Cessation Program, Ramos Mejía Hospital, [...]
