Results 11 to 20 of about 145,336 (169)

Current Routine Testosterone Immunoassays Are Unsuitable for Lowering the General Castration Cutoff Recommendation to <0.7 nmol/l (20 ng/dl)

European Urology Open Science, 2023
Testosterone measurements are essential in the management of patients with prostate cancer undergoing castration and androgen deprivation therapy. There has been an ongoing discussion on the testosterone castration cutoff (TCC), with the primary focus on
Huub H. van Rossum, Lennart J. van Winden, Andries M. Bergman, Henk G. van der Poel   +3 more
doaj   +1 more source

Validity of free testosterone calculation in pregnant women

Endocrine Connections, 2019
Objective: Increased maternal testosterone concentration during pregnancy may affect the fetus. Therefore it is clinically relevant to have a quick and reliable method to determine free testosterone levels.
M P Schuijt, C G J Sweep, R van der Steen, A J Olthaar, N M M L Stikkelbroeck, H A Ross, A E van Herwaarden   +6 more
doaj   +1 more source

Falsely elevated serum testosterone measurements resulting from testosterone topical gel contamination of the venipuncture site: Case Series and retrospective review

Heliyon, 2023
Testosterone as replacement therapy for male hypogonadism or as gender-affirming hormone therapy for transgender and non-binary patients has increased worldwide.
Aranza Pinedo Pichilingue, Dina N. Greene, Matthew D. Krasowski   +2 more
doaj   +1 more source

Exogenous Testosterone Enhances the Reactivity to Social Provocation in Males

Frontiers in Behavioral Neuroscience, 2018
Testosterone affects human social behavior in various ways. While testosterone effects are generally associated with muscular strength and aggressiveness, human studies also point towards enhanced status–seeking motives after testosterone administration.
Lisa Wagels, Lisa Wagels, Lisa Wagels, Mikhail Votinov, Mikhail Votinov, Mikhail Votinov, Thilo Kellermann, Albrecht Eisert, Albrecht Eisert, Cordian Beyer, Cordian Beyer, Ute Habel, Ute Habel, Ute Habel   +13 more
doaj   +1 more source

Seasonal Variation in Serum Testosterone Levels: Evidence from 2 Large Institutional Databases

Urology Research and Practice, 2023
Objective: Seasonal variations in testosterone levels have been reported in some studies, but the results are inconsistent. In this study, we aimed to determine if clinically relevant seasonal variability in testosterone levels exists using a large ...
David Miller, Aaron Gurayah, Alexander Weber, Kyle Schuppe, Mohamadhusni Zarli, Alexandra Dullea, Kathleen Hwang, Ranjith Ramasamy   +7 more
doaj   +1 more source

Plasma Testosterone Levels and Atherosclerotic Plaque Gene Expression in Men With Advanced Atherosclerosis

Frontiers in Cardiovascular Medicine, 2021
Aims: Low plasma testosterone levels have been shown to predict worse outcome in men with severe atherosclerotic disease. We hypothesized that a low plasma testosterone level affects disease risk through changes in gene expression in atherosclerotic ...
Floor Groepenhoff, Floor Groepenhoff, Ernest Diez Benavente, Arjan Boltjes, Nathalie Timmerman, Farahnaz Waissi, Robin J. G. Hartman, N. C. Onland-Moret, Gerard Pasterkamp, Hester Den Ruijter   +9 more
doaj   +1 more source

Testosterone and the Heart [PDF]

Methodist DeBakey Cardiovascular Journal, 2017
Testosterone (T) has a number of important effects on the cardiovascular system. In men, T levels begin to decrease after age 40, and this decrease has been associated with an increase in all-cause mortality and cardiovascular (CV) risk. Low T levels in men may increase their risk of developing coronary artery disease (CAD), metabolic syndrome, and ...
Travis, Goodale, Archana, Sadhu, Steven, Petak, Richard, Robbins   +3 more
openaire   +2 more sources

Patterns of testosterone in male white‐tailed deer (Odocoileus virginianus): Seasonal and lifetime variation

Ecology and Evolution, 2021
Testosterone is strongly associated with the annual development of antlers in cervids, but endocrine research on wild, freely breeding ungulates is often done without repeated capture of known‐aged individuals.
Monet A. Gomes, Stephen S. Ditchkoff, Sarah Zohdy, William D. Gulsby, Chad H. Newbolt   +4 more
doaj   +1 more source

Safety Aspects and Rational Use of Testosterone Undecanoate in the Treatment of Testosterone Deficiency: Clinical Insights

Drug, Healthcare and Patient Safety, 2023
Katherine Campbell,1 Akhil Muthigi,1 Armin Ghomeshi,2 Kyle Schuppe,3 Max D Sandler,4 Ranjith Ramasamy1 1Desai Sethi Urology Institute, University of Miami, Miami, Fl, 33136, USA; 2Herbert Wertheim College of Medicine, Florida International University ...
Campbell K, Muthigi A, Ghomeshi A, Schuppe K, Sandler MD, Ramasamy R   +5 more
doaj  

Comparison of Intratesticular Testosterone between Men Receiving Nasal, Intramuscular, and Subcutaneous Pellet Testosterone Therapy: Evaluation of Data from Two Single-Center Randomized Clinical Trials

The World Journal of Men's Health, 2023
Purpose: Testosterone replacement therapy (TRT) can potentially cause decreased spermatogenesis and subsequent infertility. Recent studies have suggested that 17-hydroxyprogesterone (17-OHP) is a reliable surrogate for intratesticular testosterone (ITT)
Parris Diaz, Rohit Reddy, Ruben Blachman-Braun, Isaac Zucker, Alexandra Dullea, Daniel C. Gonzalez, Eliyahu Kresch, Ranjith Ramasamy   +7 more
doaj   +1 more source