Aims: Testosterone synthesis in chronic alcoholics is affected by a variety of mechanisms. Little is known about the reversibility of these changes upon abstinence and available data on circulating hormone levels are incomplete and inconsistent.
Methods: Serum concentrations of free testosterone, total testosterone, and luteinizing hormone (LH) were determined in 18 male non-cirrhotic chronic alcoholics on days 2, 22, 82 and 127 of strictly controlled abstinence, as well as in a group of 20 healthy age-matched controls.
Results: Higher total testosterone concentrations were found in alcoholics on the second day of abstinence, as compared to controls (7.1 +/- 1.9 vs 5.6 +/- 1.4 ng/ml) and throughout the whole observation period. Correspondingly, free testosterone concentrations were increased over control levels on day 2 (40.0 +/- 12.1 vs 29.7 +/- 8.1 pg/ml) and stayed elevated in the presence of augmented concentrations of LH [4.5 U/l (range 1.6-9.5 U/l) vs 2.0 U/l (range 0.8-8.1 U/l)] for up to 127 days of strictly controlled abstinence.
Conclusions: Sustained increases in serum free and total testosterone levels in the presence of inadequately raised LH concentrations point towards persisting disturbances of the hypothalamic-pituitary-gonadal axis in male alcoholics upon cessation of drinking.
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Hum Reprod Update
January 2025
Amsterdam UMC, Location Vrije Universiteit Amsterdam, Centre of Expertise on Gender Dysphoria, Amsterdam, The Netherlands.
Background: Transgender and gender diverse (TGD) people seek gender-affirming care at any age to manage gender identities or expressions that differ from their birth gender. Gender-affirming hormone treatment (GAHT) and gender-affirming surgery may alter reproductive function and/or anatomy, limiting future reproductive options to varying degrees, if individuals desire to either give birth or become a biological parent.
Objective And Rationale: TGD people increasingly pursue help for their reproductive questions, including fertility, fertility preservation, active desire for children, and future options.
Int J Gynaecol Obstet
January 2025
Department of Obstetrics and Gynecology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan.
Objective: To evaluate the effects of hysterectomy for benign uterine tumors on subsequent ovarian reserve, sexual function, and lower urinary tract symptoms (LUTS).
Methods: The present study was a prospective longitudinal analysis that recruited patients aged 35-45 years who underwent simple hysterectomy without oophorectomy for symptomatic benign uterine tumors. Anti-Müllerian hormone (AMH) and serum sex hormone profiles, including follicle-stimulating hormone (FSH), luteinizing hormone (LH), estradiol, progesterone, and total testosterone, were measured at four timepoints: before hysterectomy, and 3, 6, and 12 months postoperatively.
Front Physiol
January 2025
Jayhawk Athletic Performance Laboratory - Wu Tsai Human Performance Alliance, University of Kansas, Lawrence, KS, United States.
Purpose: The purpose of this study was to examine the effects of a 7-week supplemental BFR training intervention on both acute and chronic alterations in salivary testosterone (sTes) and cortisol (sCort) in collegiate American football players.
Methods: 58 males were divided into 4 groups: 3 completed an upper- and lower-body split resistance training routine (H, H/S, H/S/R; H = Heavy, S = Supplemental, R = BFR), with H/S/R performing end-of-session practical BFR training, and H/S serving as the volume-matched non-BFR group. The final group (M/S/R) completed modified resistance training programming with the same practical BFR protocol as H/S/R.
J Multidiscip Healthc
January 2025
Intensive Care Unit, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China.
Objective: To explore the effects of donor sperm on reproductive quality of life, sleep quality and erectile function in patients with severe oligoasthenospermia after the failure of intracytoplasmic sperm injection (ICSI), and to provide targeted reference for intervention.
Methods: From January 2021 to December 2023, patients with severe oligoasthenospermia who received assisted pregnancy treatment in Obstetrics and Gynecology Hospital Affiliated to Tongji University were selected as the study objects. Among them, 82 cases using sperm donor assisted pregnancy after ICSI failure were set as the observation group, and 82 cases using propensity score 1:1 matching ICSI failure after ICSI assisted pregnancy were set as the control group.
Conserv Physiol
January 2025
Geospatial Ecology of Marine Megafauna Lab, Marine Mammal Institute, Department of Fisheries, Wildlife and Conservation Sciences, Oregon State University, 2030 SE Marine Science Dr, Newport, OR 97365, USA.
Understanding wildlife reproductive seasonality is crucial for effective management and long-term monitoring of species. This study investigates the seasonal variability of testosterone in male Pacific Coast Feeding Group (PCFG) gray whales, using an eight-year dataset (2016-2023) of individual sightings, drone-based photogrammetry and endocrine analysis of faecal samples. We analyzed the relationship between faecal testosterone levels and total body length (TL), body condition (body area index, BAI), sexual maturity and day of the year using generalized additive mixed models.
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