Results 81 to 90 of about 35,000 (232)

Boosting Male Fertility: The Impact of Gonadotropin Therapy on Hypogonadotropic Hypogonadism—A Systematic Review and Meta‐Analysis

Andrology, EarlyView.
ABSTRACT Background Male hypogonadotropic hypogonadism typically presents with azoospermia and is one of the few causes of infertility amenable to a medical intervention. Gonadotropin therapy offers a chance to restore spermatogenesis and fertility in these individuals.
Manou Huijben, Anne Prinsen, Laetitia de Kort, Jetske van Breda   +3 more
wiley   +1 more source

Collection and freezing of equine epididymal spermatozoa [PDF]

, 2014
The epididymis and vas deferens store an important number of fertile spermatozoa called the extragonadal sperm reserves. These stored spermatozoa can be collected in an ultimate attempt to preserve viable spermatozoa of a critically ill or dying stallion.
Govaere, Jan, Hoogewijs, Maarten, Leemans, Bart, Roels, Kim, Van Soom, Ann, Ververs, Cyrillus   +5 more
core   +1 more source

Sperm retrieval rate and pregnancy rate in infertile couples undergoing in-vitro fertilisation and testicular sperm extraction for non-obstructive azoospermia in Hong Kong [PDF]

, 2016
published_or_final_versio
Chai, J, Ho, KL, Ho, PC, Ko, KYJ, Lau, YLE, Lee, VCY, Li, RHW, Ng, EHY, Tam, PC, Yeung, WSB   +9 more
core   +1 more source

Computer‐Assisted Sperm Analysis (CASA) Versus Manual Evaluation and the Clinical Significance of Sperm Hyperactivated Motility

Andrology, EarlyView.
Abstract Background Semen analysis remains the first‐line diagnostic test for male infertility, although it is affected by operator subjectivity. Computer‐assisted sperm analysis (CASA) is proposed to improve objectivity; however, its accuracy and clinical relevance remain uncertain.
Maria Emanuela Ragosta, Giulia Traini, Francesca Benini, Margherita Montereggi, Federica Bini, Lara Tamburrino, Linda Vignozzi, Elisabetta Baldi, Sara Marchiani   +8 more
wiley   +1 more source

Recent advances in micromanipulation and transgenesis in domestic mammals [PDF]

, 2011
Background: Intracytoplasmic sperm injection (ICSI) involves mechanical transfer of a single sperm cell into ooplasm. A new application has been recently found for ICSI, the production of transgenic animals. Since the birth of ‘‘Dolly’’, the first adult
Bevacqua, Romina Jimena, Canel, Natalia Gabriela, Gambini, Andres, Hiriart, María Inés, Jarazo, Javier, Moro, Lucía Natalia, Pereyra Bonnet, Federico Alberto, Salamone, Daniel Felipe, Vichera, Gabriel Damian   +8 more
core   +1 more source

Hyperactivation and Tyrosine Phosphorylation of Cryopreserved Stallion Spermatozoa in Relation to Conventional In Vitro Fertilization Blastocyst Production

Andrology, EarlyView.
ABSTRACT Background Challenges in establishing clinical conventional in vitro fertilization (IVF) in horses include variation in sperm and oocyte quality, which can be affected by mare age. Extended preincubation of stallion spermatozoa has resulted in successful IVF.
Raul A. Gonzalez‐Castro, Carolina C. Porflidt, Alexandra L. Ash, Jacobo S. Rodriguez, Perla D. Fleury, Edward L. Squires, Elaine M. Carnevale   +6 more
wiley   +1 more source

Cryopreservation of testicular and epididymal sperm: techniques and clinical outcomes of assisted conception

Clinics, 2013
The introduction of the technique of intracytoplasmic sperm injection to achieve fertilization, especially using surgically retrieved testicular or epididymal sperm from men with obstructive or non-obstructive azoospermia, has revolutionized the field of
Bhushan K. Gangrade
doaj  

Fertilization and early embryology: The chromosomal complements of multipronuclear human zygotes resulting from intracytoplasmic sperm injection [PDF]

, 2017
Implementation of intracytoplasmic sperm injection (ICSI) in human in-vitro fertilization (IVF) has highlighted the need for information about the risk of nuclear spindle damage caused by this procedure.
Imthurn, Bruno, Keller, Paul J., Macas, Ervin, Rosselli, Marinella   +3 more
core  

Limited Clinical Impact of Androgen Receptor Repeat Length (CAG and GGC) in Klinefelter Syndrome: A Multivariable Analysis

Andrology, EarlyView.
ABSTRACT Background Klinefelter syndrome (KS) is characterized by marked phenotypic heterogeneity that might be influenced by genetic modifiers, including androgen receptor (AR) repeat length (CAGn and GGCn). The clinical relevance of these repeat lengths in patients with KS before testosterone replacement therapy (TRT) remains unclear.
Andrea Graziani, Alberto Scala, Maria Santa Rocca, Cinzia Vinanzi, Giuseppe Grande, Andrea Di Nisio, Riccardo Selice, Antonella Di Mambro, Alberto Ferlin   +8 more
wiley   +1 more source

Study on Changes of Sperm Head Morphometry and Dna Integrity of Freeze-dried Bovine Spermatozoa [PDF]

, 2015
Changes of sperm heads morphometric and DNA integrity of freeze-dried bovine spermatozoa were investigated. Freeze-dried spermatozoa had stored in the refrigerator at 4°C for 2 years.
Afiati, F. (F), Maulana, T. (T), Said, S. (S)   +2 more
core