Results 51 to 60 of about 18,590 (226)

A novel approach to sperm cryopreservation [PDF]

Human Reproduction, 1999
Human spermatozoa have unusual cryobiological behaviour and improvements in their survival have not been achieved by the standard approaches of cryobiology. Conventional approaches to cryopreservation impose a linear change of temperature with time; however, the stresses that cells encounter during cryopreservation are all non-linear with time. In this
G J, Morris, E, Acton, S, Avery
openaire   +2 more sources

The use of deidentified organ donor testes for research

Andrology, EarlyView.
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

EFFECT OF DIFFERENT CRYOPROTECTIVE AGENTS ON SKIM MILK AND DIMITROPOULUS EXTENDER FOR STALLION SEMEN CRYOPRESERVATION [PDF]

, 2010
Cryoprotective agents (CPAs) protect sperm during cryopreservation. The objective of this study was to assess different CPAs on stallion semen cryopreservation. Skim milk (SM) and Dimitropoulos (DV) were the extenders used in this study; each was added
Purwantara, B, Arifiantini, RI, Sajuthi, D, Yusuf, TL   +3 more
core  

Best practices for cryopreserving sperm in Nonhuman Primates: a systematic review and meta-analysis

Scientific Reports
Nonhuman primates (NHPs) are in increasing demand as models for preclinical research. The availability of a highly efficient cryopreservation protocol for use with NHP sperm has potential to significantly alleviate this demand and contribute to rapid ...
Niloofar Sadeghi, Ndifereke Uboh, Corinna N. Ross, John R. McCarrey, Brian P. Hermann   +4 more
doaj   +1 more source

A review on the functional roles of trehalose during cryopreservation of small ruminant semen

Frontiers in Veterinary Science
Sperm cryopreservation is an approach to preserve sperm cells in liquid nitrogen or other cryogenic media for future use in assisted reproductive technologies, such as in vitro fertilization or artificial insemination.
Baoyu Jia, Larbi Allai, Larbi Allai, Larbi Allai, Chunyan Li, Chunyan Li, Chunyan Li, Jiachong Liang, Jiachong Liang, Jiachong Liang, Chunrong Lv, Chunrong Lv, Chunrong Lv, Guoquan Wu, Guoquan Wu, Guoquan Wu, Guobo Quan, Guobo Quan, Guobo Quan   +18 more
doaj   +1 more source

Semen quality in patients with testicular cancer is associated with age and with greatly elevated levels of beta human chorionic gonadotropin

Andrology, EarlyView.
Abstract Background Poor semen quality is a well‐known feature in patients with testicular germ cell tumours (GCTs) at the time of diagnosis but the underlying biological reasons are incompletely understood. Objectives This study aimed to identify GCT‐specific clinical factors that are involved with poor semen quality in GCT patients.
Klaus‐Peter Dieckmann, Johanna Hochmuth‐Tisch, Andrea Salzbrunn, Cord Matthies, Kathrein von Kopylow, Marta Godlewska, Christian Wülfing, Uwe Pichlmeier, Armin Soave, Christian Guido Ruf   +9 more
wiley   +1 more source

Impact of cryopreservation on lipid composition of reproductive cells of male sterlets (Acipenser Ruthenus L.)

Agricultural Science and Practice, 2018
Aim. To estimate the impact of low temperatures on the lipid composition of reproductive cells of male sterlets (Acipenser ruthenus L) in cryopreservation environment. Methods.
L. Drahan, S. Veselsky, Yu. Rud, L. Buchatsky   +3 more
doaj   +1 more source

Sperm Telomere Interactions Are Impaired in Testicular Cancer Before and After Adjuvant Therapy

Andrology, EarlyView.
ABSTRACT Background No study has yet explored telomere length or interaction in sperm nuclei of testicular cancer (TC) patients exposed to chemotherapy or radiotherapy. However, sperm telomere dynamics have emerged as a potential marker in male infertility.
Benoit Berby, Sylvianne Hennebicq, Jacqueline Saias, Florence Brugnon, Isabelle Berthaut, Myriam Daudin, Louis Bujan, Ludovic Dumont, Christine Rondanino, Aurélie Feraille, Nathalie Rives   +10 more
wiley   +1 more source

Human Sperm Cryopreservation: Update on Techniques, Effect on DNA Integrity, and Implications for ART

Advances in Urology, 2012
Cryopreservation of human spermatozoa—introduced in the 1960's—has been recognized as an efficient procedure for management of male fertility before therapy for malignant diseases, vasectomy or surgical infertility treatments, to store donor and partner ...
Marlea Di Santo, Nicoletta Tarozzi, Marco Nadalini, Andrea Borini   +3 more
doaj   +1 more source

Cryopreservation of Spermatozoa Prior and Post‐Orchiectomy in Patients With Testicular Germ Cell Cancer—Does the Timing Matter?

Andrology, EarlyView.
ABSTRACT Background Testicular germ cell cancer (TGCC) is the most frequent malignancy in young men of reproductive age. According to guidelines, semen cryopreservation should be performed prior to orchiectomy. Lack of time and local facilities as well as mental pressure are challenges in terms of fertility preservation before surgery.
Yuhe Tang, Gerald Pühse, Sabine Kliesch, Jann‐Frederik Cremers, Maria Schubert   +4 more
wiley   +1 more source