Results 11 to 20 of about 186,135 (293)

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

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

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

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

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

Time-varying testosterone level and risk of myocardial infarction and stroke among hypogonadal men: a longitudinal study in Germany [PDF]

Journal of Men's Health, 2022
Background and objective: Findings on the association between testosterone and cardiovascular risk in men have been inconsistent. Previous studies investigated this association based on testosterone level measured at one single point in time (e.g ...
Xiao Zhang, Hongwei Zhao, Jennifer Horney, Natalie Johnson, Farid Saad, Karim Sultan Haider, Ahmad Haider, Xiaohui Xu   +7 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  

Testosterone concentrations and prescription patterns of 1% testosterone gel in transgender and gender diverse individuals

Therapeutic Advances in Endocrinology and Metabolism, 2022
Background: Masculinising hormone therapy with testosterone is used to align an individual’s physical characteristics with their gender identity. Standard testosterone doses and formulations recommended for hypogonadal cisgender men are typically ...
Brendan J. Nolan, Sav Zwickl, Alex F. Q. Wong, Peter Locke, Satu Simpson, Ling Li, Jeffrey D. Zajac, Ada S. Cheung   +7 more
doaj   +1 more source

Free Testosterone Reflects Metabolic as well as Ovarian Disturbances in Subfertile Oligomenorrheic Women

International Journal of Endocrinology, 2018
Background. Diagnosing polycystic ovary syndrome (PCOS) is based on ovulatory dysfunction, ovarian ultrasound data, and androgen excess. Total testosterone is frequently used to identify androgen excess, but testosterone is mainly bound to sex hormone ...
L. Antonio, S. Pauwels, M. R. Laurent, D. Vanschoubroeck, I. Jans, J. Billen, F. Claessens, B. Decallonne, Diane De Neubourg, P. Vermeersch, D. Vanderschueren   +10 more
doaj   +1 more source

Testosterone trajectories and reference ranges in a large longitudinal sample of male adolescents.

PLoS ONE, 2014
PurposePubertal dynamics plays an important role in physical and psychological development of children and adolescents. We aim to provide reference ranges of plasma testosterone in a large longitudinal sample.
Ammar Khairullah, Laura Cousino Klein, Suzanne M Ingle, Margaret T May, Courtney A Whetzel, Elizabeth J Susman, Tomáš Paus   +6 more
doaj   +1 more source