Results 71 to 80 of about 27,805 (273)

Human asthenozoospermia: Update on genetic causes, patient management, and clinical strategies

Andrology, EarlyView.
Abstract Background In mammals, sperm fertilization potential relies on efficient progression within the female genital tract to reach and fertilize the oocyte. This fundamental property is supported by the flagellum, an evolutionarily conserved organelle, which contains dynein motor proteins that provide the mechanical force for sperm propulsion and ...
Emma Cavarocchi, Maëva Drouault, Joao C. Ribeiro, Violaine Simon, Marjorie Whitfield, Aminata Touré   +5 more
wiley   +1 more source

Testosterone and androstenedione concentrations in human testis and epididymis during the first two years of life [PDF]

, 1983
Testosterone and androstenedione were measured in testicular and epididymal tissue of 37 previously healthy infants between 1 and 24 months of age who died suddenly. In half of the patients elevated plasma levels of cortisol and androstenedione suggested
Bidlingmaier, F., Dörr, H. G., Eisenmenger, Wolfgang, Knorr, D., Kuhnle, U.   +4 more
core   +1 more source

Fetal exposure to a mixture of endocrine‐disrupting chemicals and biomarkers of male fecundity: A population‐based cohort study

Andrology, EarlyView.
Abstract Background Fetal exposure to endocrine‐disrupting chemicals (EDCs) has been associated with reduced male fecundity, but with few studies considering chemical mixtures. Objectives We assessed the association between fetal exposure to a mixture of EDCs and biomarkers of male fecundity in young adulthood.
Sidsel Dan Hull, Karin Sørig Hougaard, Gunnar Toft, Kajsa Kirstine Ugelvig Petersen, Esben Meulengracht Flachs, Christian Lindh, Cecilia Høst Ramlau‐Hansen, Lauren A. Wise, Allen Wilcox, Zeyan Liew, Jens Peter Bonde, Sandra Søgaard Tøttenborg   +11 more
wiley   +1 more source

Feminization and severe pancytopenia caused by testicular neoplasia in a cryptorchid dog [PDF]

, 2016
In this case report, a paraneoplastic syndrome caused by testicular neoplasia in a ten-year-old cryptorchid dog is described. Feminization and pancytopenia were observed, resulting from the testicular neoplastic production of estrogens.
Hebbelinck, Lien, Kitshoff, Adriaan, Paepe, Dominique, Vandenabeele, Sophie   +3 more
core  

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

Testicular neoplasia in undescended testes of cryptorchid boys-does surgical strategy have an impact on the risk of invasive testicular neoplasia?

The Turkish Journal of Pediatrics, 2004
We investigated whether or not surgical strategy has an impact on the risk of invasive testicular neoplasia in cases of cryptorchidism. We made a database study of the incidence of testicular neoplasia at surgery for cryptorchidism in childhood ...
Dina Cortes, Jorgen Thorup, Bodil Laub Petersen   +2 more
doaj  

Stable variable selection for right censored data: comparison of methods [PDF]

, 2011
The instability in the selection of models is a major concern with data sets containing a large number of covariates. This paper deals with variable selection methodology in the case of high-dimensional problems where the response variable can be right ...
Besse, Philippe, Leconte, Eve, Walschaerts, Marie   +2 more
core   +3 more sources

Night work during pregnancy and risk of cryptorchidism among male offspring: A Danish nationwide register‐based cohort study

Andrology, EarlyView.
Abstract Aim The aim was to investigate the association between night work during pregnancy and the risk of having a male offspring with cryptorchidism. Furthermore, we explored if the risk of cryptorchidism increased based on trimester‐specific night work (gestational weeks 1–12 and 13–22) by sensitivity analyses.
Charlotte Bertelsen, Luise Mølenberg Begtrup, Paula E. C. Hammer, Jens Peter Ellekilde Bonde, Anne Helene Garde, Ina Olmer Specht, Johnni Hansen, Esben Flachs Meulengracht, Camilla Sandal Sejbæk   +8 more
wiley   +1 more source

Growing Up Toxic: Chemical Exposures and Increases in Developmental Disease [PDF]

, 2011
Explains how exposure to toxic chemicals can harm health and impair development, causing premature birth, learning disabilities, behavioral disorders, asthma and allergies, and/or other problems.
Elizabeth Hitchcock, Travis Madsen
core  

Association between altered placental human chorionic gonadotrophin (hCG) production and the occurrence of cryptorchidism: a retrospective study [PDF]

, 2014
BACKGROUND: An increase in cryptorchidism has been reported in many countries. One mechanism could be low fetal testosterone production possibly secondary to altered placental human chorionic gonadotrophin (hCG) release.
Carole Chedane, Dominique Weil, Hugues Puissant, Régis Coutant, Stéphanie Rouleau   +4 more
core   +2 more sources