Search results for "TESTOSTERONE"

Relationships Between Biochemical Markers of Hyperandrogenism and Metabolic Parameters in Women with Polycystic Ovary Syndrome: A Systematic Review a…

2019

AbstractWhile several studies have documented an increased risk of metabolic disorders in patients with polycystic ovary syndrome (PCOS), associations between androgenic and metabolic parameters in these patients are unclear. We aimed to investigate the relationships between biochemical markers of hyperandrogenism (HA) and metabolic parameters in women with PCOS. In this systematic review and meta-analysis, a literature search was performed in the PubMed, Scopus, Google Scholar, ScienceDirect, and Web of Science from 2000 to 2018 for assessing androgenic and metabolic parameters in PCOS patients. To assess the relationships between androgenic and metabolic parameters, meta-regression analys…

Androgen metabolism in the skin of the rainbow trout (Oncorhynchus mykiss)

1993

Pieces of skin of male and female rainbow trout (Oncorhynchus mykiss) were incubated with testosterone and 11-ketotestosterone as substrates. In immature fish the conversion rate was low. In non-spawning adult males 11-ketotestosterone was reduced to 5α-11KDHT (up to 5.2%). In the fish in spawning condition the 5α-reduction rate was only about 1 to 2%. In the same specimens incubated with testosterone a high 11β-hydroxylase activity (23.8-25% in the male and 13% in the female skin) was found. Similar sex specific differences were observed for the occurence of 5α-reduced metabolites (about 20% in the male and 13% in the female tissue).

Effects of Upper Body Eccentric versus Concentric Strength Training and Detraining on Maximal Force, Muscle Activation, Hypertrophy and Serum Hormone…

2022

Effects of eccentric (ECC) versus concentric (CON) strength training of the upper body performed twice a week for 10 weeks followed by detraining for five weeks on maximal force, muscle activation, muscle mass and serum hormone concentrations were investigated in young women (n = 11 and n = 12). One-repetition bench press (1RM), maximal isometric force and surface electromyography (EMG) of triceps brachii (TB), anterior deltoid (AD) and pectoralis major (PM), cross-sectional area (CSA) of TB (Long (LoH) and Lateral Head (LaH)) and thickness of PM, as well as serum concentrations of free testosterone, cortisol, follicle-stimulating hormone, estradiol and sex hormone-binding globulin were mea…

Influences of muscle, fat and hormones on bone development in women : a cross-sectional and longitudinal study spanning three generations

2011

Basal Endogenous Steroid Hormones, Sex Hormone-Binding Globulin, Physical Fitness, and Health Risk Factors in Young Adult Men.

2018

Purpose: Few large-scale population-based studies have adequately examined the relationships between steroid hormones, health status and physical fitness. The purpose of the study was to describe the relationship of serum basal endogenous steroid hormones (testosterone, TES; empirical free testosterone, EFT; cortisol, COR) and sex hormone-binding globulin (SHBG) to body composition, cardiovascular risk factors, and physical fitness in young healthy men. Methods: Male reservists (25 ± 4 years, N = 846) participated in the study. Basal TES, EFT, COR, and SHBG were measured in morning fasted blood. Stepwise regression analyses were used to examine associations between individual hormones to fo…

Sympathoadrenal response to resistance exercise in men, women and pubescent boys : with special reference to interaction with other hormones and neur…

2001

Effects of an 8-day field training on body composition, serum hormone concentrations and maximal force production in military conscripts

2015

Savolainen, S. 2015. Effects of an 8-day field training on body composition, serum hormone concentrations and maximal force production in military conscripts, 64p. University of Jyväskylä. Department of Biology of Physical Activity. Science of Sports Coaching and Fitness Testing. The aim of this study was to examine physiological consequences on 8-day strenuous military field exercise. 26 men (20 ± 1 yrs, 53,7 ± 4,5ml/kg/min, 178,4 ± 7,2cm, 71,2 ± 7,2kg) in the end of their military service participated in the study. The research data was collected in five testing day (pre1, pre2, middle, post and follow-up); body composition, physical performance and basal blood levels were measured. The c…

The 2D:4D ratio and its relationship with other androgenisation parameters in parents of individuals with autism spectrum disorders.

2013

The 2D:4D ratio is the quotient between the index and ring fin-ger lengths and is a non-direct indicator of androgenisation. If prenatal tes-tosterone levels in the amniotic fluid are high then the probability increases of developing lower ratio values. It has been suggested that people with au-tism spectrum disorders (ASD) and their parents may have highly andro-genised brains, and for this reason the 2D:4D ratio is used as a marker of such idiosyncrasies. This study aims to analyse if parents of people with ASD differ from the general population in several parameters of andro-genisation related to the 2D:4D ratio. The sample was composed of 43 parents of offspring with ASD and 42 controls…

The relationship between endothlial ABD erectile dysfunction, levels of testosterone and cardiovascular events in the follow-up

2016

Background: Clinical and experimental evidence suggest that testosterone levels play a role in cardiac and vascular pathology. A long history of observational studies investigating serum testosterone level and cardiovascular risks, specifically mortality, reveals important associations between low testosterone and mortality, while higher serum testosterone level appear to be predictive in the majority of studies. On the other hand, it is well documented and accepted that endothelial dysfunction is expression of preclinical atherosclerosis and it is associated with an increased amount of CV events in the follow-up. Erectile dysfunction is also an early manifestation of arteriosclerosis assoc…

Testosterone levels are directly related with erectile function and endothelial function in men with intermediate risk according to the Framingham sc…

2014

Background. The value of testosterone levels and erectile dysfunction (ED) as early markers of atherosclerosis is not well understood. Objectives. To analyze the relationship between plasma testosterone levels in men with both endothelial function (F) and ED. Methods. We enrolled 802 asymptomatic, intermediate cardiovascular risk patients, according to the Framingham Risk Score, aged 40 to 80 years, who underwent the study of EF, evaluation of ED and dosage of plasma testosterone. Results. At linear regression, EF (t=9.40; 95% CI from 0.9318 to 1.4234; p<0.0001) and erectile function (t=8.96; 95% CI from 0.7642 to 1.1932; p<0.0001) statistically increased with increasing levels of testoster…