Results 51 to 60 of about 5,899 (222)

Response kinetics of tethered bacteria to stepwise changes in nutrient concentration [PDF]

open access: yes, 2003
We examined the changes in swimming behaviour of the bacterium Rhodobacter sphaeroides in response to stepwise changes in a nutrient (propionate), following the prestimulus motion, the initial response and the adaptation to the sustained concentration of the chemical.
arxiv   +1 more source

Gamma Irradiated Rhodiola sachalinensis Extract Ameliorates Testosterone-Induced Benign Prostatic Hyperplasia by Downregulating 5-Alpha Reductase and Restoring Testosterone in Rats

open access: yesMolecules, 2019
The effect of Rhodiola sachalinensis Boriss extract irradiated with 50 kGy gamma rays (HKC) on benign prostatic hyperplasia (BPH) was investigated. Seven-week-old male SD rats received a subcutaneous injection of 20 mg/kg of testosterone propionate (TP ...
Qi Xin   +9 more
doaj   +1 more source

Testosterone aggravates cerebral vascular injury by reducing plasma HDL levels

open access: yesOpen Life Sciences, 2020
Testosterone is often used to improve the physiological function. But increased testosterone levels affect blood lipids and cause inflammation and oxidative stress, which are risk factors for vascular diseases.
Jin Tao   +4 more
doaj   +1 more source

The world's first anabolic‐androgenic steroid testing trial: A two‐phase pilot combining chemical analysis, results dissemination and community feedback

open access: yesAddiction, EarlyView.
Abstract Background and Aims The clandestine production and distribution of anabolic‐androgenic steroids (AAS) poses health risks due to the uncertainty of their contents. This study aimed to test the chemical content of AAS samples and provide aggregate results back to the community, exploring how these results influenced usage decisions and risk ...
Timothy Piatkowski   +13 more
wiley   +1 more source

Testosterone Decreases Placental Mitochondrial Content and Cellular Bioenergetics

open access: yesBiology, 2020
Placental mitochondrial dysfunction plays a central role in the pathogenesis of preeclampsia. Since preeclampsia is a hyperandrogenic state, we hypothesized that elevated maternal testosterone levels induce damage to placental mitochondria and decrease ...
Jay S. Mishra   +2 more
doaj   +1 more source

Recycling Agricultural Waste: Sustainable Solutions for Enhancing Livestock Nutrition

open access: yesVeterinary Medicine and Science, Volume 11, Issue 3, May 2025.
The increasing demand for sustainable agricultural practices prompts a reevaluation of feeding strategies in ruminant nutrition. Agricultural waste, often viewed as a by‐product, presents a promising opportunity to enhance the sustainability of livestock production systems.
Mohsen Kazemi
wiley   +1 more source

Label-free assaying of testosterone and growth hormones in blood using surface-enhanced raman spectroscopy [PDF]

open access: yesarXiv, 2023
This work reports the potential use of surface enhanced Raman spectroscopy (SERS) in rapid, label-free assaying of testosterone (TE) and growth hormone (GH) in whole blood. Biomarker SERS spectral bands from the two hormones (TE and GH) in intentionally spiked water for injection and in male Sprague-Dawley (SD) rat blood are reported.
arxiv  

Safety, efficacy, and pharmacokinetics of oral testosterone undecanoate in males with hypogonadism

open access: yesAndrology, Volume 13, Issue 4, Page 882-893, May 2025.
Abstract Background Testosterone deficiency results from insufficient testosterone production. Testosterone therapy may require dose titration to reach eugonadal serum testosterone concentrations. Objective The primary objective was the efficacy of oral testosterone undecanoate (TLANDO; Antares Pharma Inc.) in male patients with documented hypogonadism.
Martin Miner   +8 more
wiley   +1 more source

Neonatal androgenization of hypogonadal (hpg) male mice does not abolish estradiol-induced FSH production and spermatogenesis

open access: yesReproductive Biology and Endocrinology, 2005
Background Testicular development is arrested in the hypogonadal (hpg) mouse due to a congenital deficiency in hypothalamic gonadotropin-releasing hormone (GnRH) synthesis.
Kerr Jeffrey B   +3 more
doaj   +1 more source

Effect of Testosterone Propionate in Eunuchoidism

open access: yesExperimental Biology and Medicine, 1938
ConclusionTestosterone propionate causes enlargement of the prostate and progression of secondary sex characters in the eunuchoid, together with a gain in weight, nitrogen and sodium retention, and a slight increase in the basal metabolic rate.
Fred C. Koch   +4 more
openaire   +2 more sources

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