Results 111 to 120 of about 11,266 (247)

Testicular sperm extraction and intracytoplasmic sperm injection in non-obstructive azoospermia.

Chinese medical journal, 2002
Objective To report the experience in sperm extraction from testicular biopsies (TESE) performed from March 1996 to July 1998 in men with non-obstructive azoospermia (NOA). Methods Comparisons of age, volume of both testes, serum FSH and testosterone in men, and histology of testicular samples in the first cycles between cycles with spermatozoa found ...
Ho, PC, So, WK, Tam, PC, Ng, HYE, Lau, YL, Yeung, SB   +5 more
openaire   +2 more sources

Male Mice Heterozygous for Protamine 1 and Protamine 2 Are Infertile, Displaying Sperm Damage and Retention of Protamine 2 Precursors, Transition Proteins, and Histones

Andrology, EarlyView.
ABSTRACT Background During spermiogenesis, protamines (PRMs) replace histones to hypercondense and protect sperm DNA. Rodents and primates express two PRMs (PRM1 and PRM2). Alterations of species‐specific PRM ratios are associated with sub‐ or infertility in mice and humans.
Gina Esther Merges, Christoph Wiesejahn, Mar Domingo‐Lopez, Simon Schneider, Andjela Kovacevic, Lena Arévalo, Hubert Schorle   +6 more
wiley   +1 more source

Male Sexual and Reproductive Health in Diabetes and Obesity Pharmacotherapy: A Source‐Triangulated Counseling Map

Andrology, EarlyView.
ABSTRACT Background Drugs used for diabetes and obesity increasingly shape male sexual and reproductive counseling, but clinical studies, trial registrations, regulatory labels, and patents answer different questions. Objectives The objective is to map these sources and define what each can support when counseling men receiving metabolic drugs ...
Marek Broul, Michal Dubský, Aneta Hujová, Michaela Liegertová   +3 more
wiley   +1 more source

Laboratory processing and intracytoplasmic sperm injection using epididymal and testicular spermatozoa: what can be done to improve outcomes?

Clinics, 2013
There are two main reasons why sperm may be absent from semen. Obstructive azoospermia is the result of a blockage in the male reproductive tract; in this case, sperm are produced in the testicle but are trapped in the epididymis.
Wana Popal, Zsolt P. Nagy
doaj  

The Impact of Common Medications on Male Fertility: An Updated Systematic Review

Andrology, EarlyView.
ABSTRACT Background Compared with those of cytotoxic treatments, the potential effects of common medications on the fertility of men trying to conceive currently or planning to conceive in the future are less well described. The use of common medications may modify the gonadotropic axis, spermatogenesis, and epididymal maturation or alter male ...
Lina Jebli, Salomé Gallissian, Roxanne Barèges, Félicia Fournier, Catherine Metzler‐Guillemain, Ségolène Prades, Fanny Magnan‐Sebag, Jeanne Perrin   +7 more
wiley   +1 more source

Marginal Changes in Semen Quality Over Three Decades (1996‒2022) Among 8320 Men in the Danish Young Men Study (DYMS): Cohort Profile and Trends

Andrology, EarlyView.
ABSTRACT Background Since the 1990s, declining sperm counts and increasing testicular cancer rates have raised worldwide concern about male reproductive health, including in Denmark. This prompted a prospective population‐based study with annual surveillance of semen quality.
Lærke Priskorn, Cille Baslund‐Storch, Laura S. Hansen, Astrid L. Beck, Ann H. Hansen, Stine A. Holmboe, Loa Nordkap, Anne Kirstine Bang, Rune Lindahl‐Jacobsen, Christine Dalgård, Anna‐Maria Andersson, Tina K. Jensen, Anders Juul, Niels Jørgensen   +13 more
wiley   +1 more source

Lactate‐Responsive Glycogen Dynamics Are Associated With Bull Sperm Motility and Fertilization Under Glucose‐Limited Conditions

Andrology, EarlyView.
ABSTRACT Background Mammalian sperm need to undergo hyperactivation, capacitation, and acrosome reaction to achieve fertilization competence. However, the female reproductive tract presents contrasting metabolic environments. The uterus is glucose‐rich, and the oviduct is lactate‐rich and glucose‐limited.
Md Faizul Hossain Miraz, Takahiro Yamanaka, Takashi Umehara, Shahrina Akter, Wambugu Enoc Njoroge, Masayuki Shimada   +5 more
wiley   +1 more source

Comparison of testicular sperm aspiration to testicular sperm extraction in men with obstructive azoospermia [PDF]

Fertility and Sterility, 2019
M. Bastuba, M. Cohen, A. Bastuba, E. Biewenga, N. Rocco   +4 more
openaire   +1 more source

The Need for a Global Registry for Charting the Natural History of Klinefelter Syndrome

Andrology, EarlyView.
ABSTRACT Background Although Klinefelter Syndrome (KS) represents the most common sex chromosome aneuploidy, several gaps in knowledge persist regarding optimal management of individuals with this condition. Individuals with KS can have a diverse phenotype including endocrine, neurodevelopmental, and cardiovascular manifestations.
Malika Alimussina, Joseph McElvaney, Corinna Grasemann, Jillian Bryce, Lise Aksglaede, Claudia Boettcher, Lexi Breen, Francesco Carlomagno, Sabine Hannema, Andrea M. Isidori, Inas Mazen, Anna Nordenstrom, S. Faisal Ahmed, Angela K. Lucas‐Herald   +13 more
wiley   +1 more source

Differential Sperm DNA Methylation Profiles in Healthy Men With High Versus Low Adherence to the Mediterranean Diet in the Led‐Fertyl Study

Andrology, EarlyView.
ABSTRACT Background Diet is known to play an essential role not only in sperm quality but also in offspring health, likely mediated through the sperm epigenome. Moreover, one of the main components of the Mediterranean diet (MedDiet) (i.e., nuts) have shown to impact sperm DNA methylation patterns.
Rashmi Agarwal, Nancy Babio, Estefanía Davila‐Cordova, María Fernández de la Puente, Cristina Valle‐Hita, Carles Arribas, Manel Esteller, Aleix Noguera‐Castells, Raquel Pluvinet, Jordi Salas‐Salvadó, Albert Salas‐Huetos   +10 more
wiley   +1 more source