Tetrachlorobisphenol A inhibits steroidogenesis in pubertal rat Leydig cells through disruption of copper homeostasis.
Whether the flame retardant tetrachlorobisphenol A disrupts testosterone production through copper-related damage.
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What was tested, what changed, and what the evidence cannot tell us. Each summary links to the original research and states whether it is based on an abstract or full paper.
165 completed summaries · Newest publications first · Summaries are not formal quality appraisals.
Search and filter the research →Whether the flame retardant tetrachlorobisphenol A disrupts testosterone production through copper-related damage.
Read summary →A review of aromatase inhibitors and their hormone, health and performance effects in men.
Read summary →Retrospective comparison of prior GLP-1 medicine or tirzepatide use versus no prior use before bariatric surgery.
Read summary →Whether blood levels of prostate-specific antigen differed between women with polycystic ovary syndrome who had excess hair growth and those who did not.
Read summary →The researchers examined whether links between testosterone levels and disease change with age.
Read summary →Whether PDE10A inhibitors could limit weight gain, including after stopping semaglutide.
Read summary →Whether testosterone changes tracked breast enlargement during intermittent enzalutamide treatment for recurrent prostate cancer.
Read summary →An updated systematic review of commonly used medicines and male reproductive outcomes.
Read summary →How the peptide urotensin II regulates reproductive signaling and gonadal development in tilapia.
Read summary →Acute hormone and metabolic responses to full versus partial range-of-motion resistance exercise.
Read summary →Whether an Amphora coffeaeformis algal extract improved reproductive injury after gamma radiation.
Read summary →A systematic review of testosterone monitoring, recovery and replacement after androgen-deprivation therapy plus radiotherapy for prostate cancer.
Read summary →Tirzepatide for high blood glucose that developed during pasireotide treatment for a hormone-producing pituitary tumor.
Read summary →Changes in small nerve fibers and neuropathy measurements after semaglutide treatment.
Read summary →A retrospective comparison of short-term outcomes after knee replacement among people prescribed semaglutide versus tirzepatide.
Read summary →A review of mitochondrial dysfunction and potential targeted treatments in musculoskeletal disease.
Read summary →An expert-panel review of resmetirom and semaglutide in metabolic liver disease with significant fibrosis.
Read summary →A hypothesis paper proposing GnRH antagonists instead of agonists for diagnostic sex-hormone suppression testing.
Read summary →A case report of severe bile-flow-related liver injury after self-administered oxymetholone with testosterone enanthate.
Read summary →Whether anti-Müllerian hormone adds information about metabolic risk in polycystic ovary syndrome.
Read summary →Whether a lower-dose compounded semaglutide program was associated with fewer reported side effects than a higher-dose program during the first 16 weeks.
Read summary →Whether 4-phenylbutyric acid reduced reproductive damage caused by acrylamide exposure in male rats.
Read summary →A retrospective US database study compared tirzepatide with other GLP-1 receptor agonists for inflammatory bowel disease outcomes over 18 months.
Read summary →Researchers examined age and sex differences in immune responses to seasonal influenza vaccination.
Read summary →A case report described severe heart failure alongside nonprescription testosterone and aromatase-inhibitor use and an underlying genetic finding.
Read summary →A review of cardiovascular research on single, dual and triple incretin-receptor agonists, including effects beyond blood-sugar control.
Read summary →A narrative review examined whether tirzepatide changes absorption of oral progestogens used for gynaecologic conditions or menopausal hormone therapy.
Read summary →An experiment tested whether intermittent cold exposure added to tirzepatide's effects on weight and blood-sugar regulation.
Read summary →Researchers tested how menstrual phase and sex hormones relate to cells' responses to DNA damage.
Read summary →A lifetime disease model compared semaglutide plus diet and exercise with diet and exercise alone, estimating health outcomes and carbon emissions.
Read summary →A review of osteoporosis risk, screening and treatment in older men.
Read summary →Researchers examined cholesterol metabolism and testosterone after sugar exposure during mouse puberty.
Read summary →A meta-analysis compared semaglutide with placebo in adults with overweight or obesity, with or without type 2 diabetes. Death by suicide was primary; attempts, thoughts and overall suicidal events were secondary outcomes.
Read summary →A mathematical model explored why people with type 2 diabetes may lose less weight during semaglutide treatment.
Read summary →An observational study tracked associations between blood steroid hormones and brain chemistry during adolescence.
Read summary →A 16-week retrospective study compared a behavioural weight-management programme alone with programmes including lower or higher amounts of compounded semaglutide.
Read summary →A short review examined current and emerging medicines for adolescent obesity.
Read summary →A cross-sectional study examined associations between dietary protein sources, testosterone and sex hormone-binding globulin.
Read summary →A meta-analysis compared abnormal heart rhythms in randomized trials of tirzepatide versus placebo for overweight or obesity.
Read summary →A full-text systematic review and meta-analysis combined randomized trials of intramuscular nandrolone decanoate versus placebo, standard care, erythropoietin, exercise or other controls in adults with chronic kidney disease.
Read summary →A review assessed semaglutide and tirzepatide research in metabolic fatty liver disease and its inflammatory form, MASH.
Read summary →A walnut-intake study measured stool metabolites and explored their relationship with the microbial metabolite urolithin A.
Read summary →An observational study examined relationships between testosterone, gender-minority stress and blood-pressure responses to brief physical and psychological stress.
Read summary →T-BEAT is an ongoing observational comparison of tirzepatide and oral semaglutide in early type 2 diabetes in Japan. The primary outcome is average blood-sugar change over up to 12 months.
Read summary →An overview explored links between prolactin excess, sex-hormone disturbances and cardiovascular problems in chronic kidney disease.
Read summary →A prospective observational study tracked heart structure and function after tirzepatide was started in routine care.
Read summary →A cross-sectional survey asked prescribers and voice clinicians about suspected testosterone-related voice changes in cisgender women.
Read summary →An observational experiment examined whether baseline cortisol and testosterone relate to how effectively men reinterpret negative emotional images.
Read summary →A narrative review examined semaglutide and papillary thyroid cancer, including cancer development, progression and laboratory mechanisms.
Read summary →A narrative review examined behavioural, family, psychological and medication approaches to childhood obesity.
Read summary →Neural-pathway experiments examined how semaglutide-responsive brain circuits influence feeding, ketone production and energy use.
Read summary →Researchers examined whether reports linking semaglutide to a type of optic-nerve injury reflected reporting patterns or drug effects.
Read summary →An animal experiment tested whether testosterone changes anxiety-like behaviour through brain-support cells and the blood–brain barrier.
Read summary →A physiology study compared metabolic, hormone and reproductive-organ changes across breeding stages in pigeons.
Read summary →An animal experiment tested whether selenium nanoparticles reduced liver, kidney and reproductive harm from aflatoxin.
Read summary →Laboratory work examined how phoenixin-14 affects testosterone secretion.
Read summary →A protocol describes a planned cross-sectional study of body measurements, physical function and lifestyle factors associated with testosterone.
Read summary →An overview discussed experimental treatments for sarcopenia, the age-related loss of muscle mass and strength.
Read summary →A meta-analysis examined relationships between sleep disorders, erectile function and hormone levels.
Read summary →A retrospective US study compared tirzepatide and semaglutide for asthma flare-ups in adults with asthma and type 2 diabetes.
Read summary →Researchers used physician-checked automated extraction of US clinical notes from 2020–2026 to describe BPC-157 use and reported outcomes.
Read summary →A design report described a multilingual phone app for medication information, reminders and record-keeping.
Read summary →Researchers investigated a combined cell-death process in an Alzheimer's disease mouse model, including how semaglutide affects the process.
Read summary →A field study compared egg-yolk testosterone in rooftop- and ground-nesting herring gulls.
Read summary →An experiment tested whether repeated beta-nerve growth factor administration changed semen characteristics in rams.
Read summary →Retrospective comparison of voice assessments in women reporting voice changes after testosterone therapy and untreated women without voice problems.
Read summary →Randomized animal experiment comparing testosterone propionate injections in male pigeons with vehicle injections.
Read summary →Combined computer analyses and an animal experiment investigating icariin in polycystic ovary syndrome.
Read summary →This 48-hour cell experiment compared untreated HepG2 liver cells, free-fatty-acid-treated cells, and fatty-acid-treated cells exposed to liraglutide. It measured cellular lipids, oxidative-stress markers, iron, and antioxidant activity.
Read summary →Laboratory development of a rapid test to detect six anabolic-androgenic steroids in food.
Read summary →A preclinical study tested Kushen Tongguan Pill in testosterone-propionate-induced benign prostatic hyperplasia and examined inflammatory signaling.
Read summary →A Society for Endocrinology position statement summarizes evidence on non-medical androgen use, health consequences, recovery after cessation, and management.
Read summary →A retrospective longitudinal study examined official competitive performance during prolonged testosterone suppression in elite runners with androgen-sensitive differences of sex development.
Read summary →Randomized, double-blind phase 3 trial compared weekly retatrutide with placebo for 40 weeks. The primary outcome was HbA1c, a blood-sugar marker; weight change was secondary.
Read summary →SLU-PP-915, an orally active compound that activates energy-regulating ERR receptors, was tested for exercise-related effects.
Read summary →A randomized, double-blind phase 2 substudy in adults with type 2 diabetes compared retatrutide with placebo and dulaglutide. Its primary outcome was total fat-mass change measured by body-composition scans over 36 weeks.
Read summary →Phase 3 randomized trial comparing semaglutide with placebo for metabolic fatty liver inflammation and scarring.
Read summary →A kidney-safety analysis reported kidney impairment, dehydration and low blood pressure. One retatrutide participant had serious acute kidney injury, possibly secondary to COVID-19.
Read summary →Randomized trial comparing oral semaglutide with placebo alongside standard care for cardiovascular death, nonfatal heart attack or stroke.
Read summary →Randomized trial comparing tirzepatide with placebo for cardiovascular death or worsening heart failure, and patient-reported health status.
Read summary →This full-text EASL-EASD-EASO guideline updated definitions, screening, diagnosis, prevention, and treatment recommendations for metabolic dysfunction-associated steatotic liver disease.
Read summary →A double-blind randomized trial tested weekly semaglutide plus lifestyle counseling versus placebo for obesity with painful knee osteoarthritis.
Read summary →A propensity-matched observational cohort compared on-treatment weight loss and gastrointestinal adverse events among adults receiving tirzepatide or semaglutide in routine care.
Read summary →A post-hoc pooled participant-level analysis combined four randomized placebo-controlled semaglutide trials to examine heart-failure events.
Read summary →A retrospective matched cohort assessed whether prescribed semaglutide was associated with nonarteritic anterior ischemic optic neuropathy.
Read summary →Two phase 3 randomized trials comparing tirzepatide with placebo for obstructive sleep apnea and obesity.
Read summary →A randomized, double-blind, placebo-controlled phase two substudy tested once-weekly retatrutide for reducing liver fat.
Read summary →Phase 2 randomized trial comparing three tirzepatide doses with placebo for metabolic fatty liver inflammation and scarring.
Read summary →Clinical guideline covering prevention, diagnosis and treatment of fatty liver disease linked to metabolic risk factors.
Read summary →Randomized comparison of semaglutide with placebo, tracking kidney failure, major kidney-function loss, or kidney-related or cardiovascular death.
Read summary →A prespecified SELECT analysis examined long-term weight, body measurements, safety and tolerability with semaglutide versus placebo.
Read summary →A prespecified pooled analysis combined individual patient data from two randomized placebo-controlled semaglutide trials in obesity-related HFpEF.
Read summary →Randomized comparison of semaglutide with placebo for symptoms, physical limitations and weight in obesity-related heart failure.
Read summary →Review of current and pipeline obesity medicines, emphasizing GLP-1 and combinations with GIP, glucagon, or amylin. It does not report one intervention, comparator, or follow-up period.
Read summary →Randomized withdrawal trial comparing continued tirzepatide with switching to placebo after initial tirzepatide treatment.
Read summary →Randomized trial comparing semaglutide with placebo for major cardiovascular events.
Read summary →Clinical review of behavioral, nutritional, exercise, medication and procedural approaches to adult obesity.
Read summary →A double-blind placebo-controlled trial randomized adults after successful intensive lifestyle weight loss to weekly tirzepatide or placebo.
Read summary →Randomized comparison of semaglutide with placebo for symptoms, physical limitations and weight in obesity-related heart failure.
Read summary →A randomized, blinded trial compared retatrutide with placebo for weight loss over 48 weeks.
Read summary →Phase 3 randomized trial comparing two tirzepatide doses with placebo for weight management.
Read summary →OASIS 1 tested daily oral semaglutide 50 mg plus lifestyle intervention against placebo plus lifestyle intervention for 68 weeks.
Read summary →The trial compared several weekly retatrutide regimens with placebo and dulaglutide for glucose control and body weight over 24 to 36 weeks.
Read summary →A 32-week, double-blind phase 2 trial randomized adults with type 2 diabetes to weekly CagriSema, semaglutide or cagrilintide. The primary outcome was change in HbA1c.
Read summary →Narrative review integrating metabolic, inflammatory, immune and antifibrotic treatment targets for non-alcoholic steatohepatitis and fibrosis.
Read summary →Evidence review of approved anti-obesity medicines and investigational drugs, updating prior work with Medline and Embase searches.
Read summary →A double-blind phase 2 trial compared weekly semaglutide with placebo in NASH-related compensated cirrhosis.
Read summary →A randomized placebo-controlled trial tested weekly semaglutide plus lifestyle intervention in adolescents with obesity or qualifying overweight.
Read summary →A 12-week randomized, double-blind phase 1b trial in adults with type 2 diabetes compared ascending retatrutide doses with placebo and dulaglutide. Safety and tolerability were primary outcomes; glucose, weight and drug-processing measures were secondary.
Read summary →Randomized comparison of semaglutide with placebo for long-term weight management, with behavioral intervention in both groups.
Read summary →This full-text narrative review and secondary analysis synthesized preclinical work, phase 2 data, and the SURPASS 1-5 trials of tirzepatide for type 2 diabetes.
Read summary →Discovery research assessed LY3437943, later known as retatrutide, a peptide activating glucagon, GIP and GLP-1 receptors, through laboratory experiments, obese-mouse studies and an early phase 1 single-dose study.
Read summary →Phase 3 randomized trial comparing three studied tirzepatide doses with placebo for weight loss.
Read summary →Exploratory follow-up after semaglutide or placebo and the accompanying lifestyle intervention were stopped.
Read summary →Randomized, open-label phase 3 substudy comparing weekly tirzepatide with daily titrated insulin degludec for liver fat and abdominal adipose tissue.
Read summary →SURPASS-5 tested once-weekly tirzepatide versus placebo added to titrated insulin glargine over forty weeks.
Read summary →A blinded, randomized trial tested urolithin A against placebo for walking ability, muscle endurance and cellular energy production.
Read summary →Randomized comparison of weekly semaglutide 2.4 mg with daily liraglutide 3.0 mg for weight loss, alongside diet and physical activity.
Read summary →SURPASS-4 randomized adults with type 2 diabetes and high cardiovascular risk to once-weekly tirzepatide or titrated insulin glargine.
Read summary →SURPASS-3 compared once-weekly tirzepatide with daily, treat-to-target insulin degludec.
Read summary →A double-blind randomized phase 3 trial compared once-weekly tirzepatide at three doses with placebo as monotherapy in adults with type 2 diabetes.
Read summary →Randomized comparison of three tirzepatide doses with semaglutide 1 mg for blood sugar control.
Read summary →This randomized, placebo-controlled trial compared exercise, liraglutide, their combination, and placebo for one year after an eight-week low-calorie diet.
Read summary →Randomized trial comparing semaglutide with placebo, both with intensive behavioral therapy and an initial low-calorie diet.
Read summary →Randomized withdrawal trial comparing continued semaglutide with switching to placebo, with lifestyle intervention in both groups.
Read summary →Phase 3 randomized trial comparing two semaglutide doses with placebo, alongside lifestyle intervention, for weight management.
Read summary →Randomized trial testing semaglutide versus placebo, both alongside lifestyle intervention, over 68 weeks.
Read summary →Phase 2 randomized trial comparing daily semaglutide with placebo for fatty liver inflammation and scarring.
Read summary →This full-text mechanistic study tested tirzepatide signaling and receptor occupancy using engineered human receptor cell lines and isolated mouse pancreatic islets.
Read summary →Randomized double-blind trial of daily liraglutide 3.0 mg versus placebo, both with lifestyle therapy, for 56 weeks followed by 26 weeks off treatment.
Read summary →This preclinical study examined how semaglutide affected food intake, food preference, body weight, brain access and neural signaling.
Read summary →This review described barriers to oral peptide delivery and strategies including permeation enhancers, gut-enzyme inhibitors, and mucus- or cell-penetrating peptides.
Read summary →Randomized safety trial comparing oral semaglutide with placebo for cardiovascular death, nonfatal heart attack or stroke.
Read summary →Double-blind phase 2 trial comparing weekly LY3298176, now known as tirzepatide, at four doses with dulaglutide or placebo.
Read summary →A full-text phase 1 program tested the dual GIP/GLP-1 agonist LY3298176 in cells and mice, then in randomized, double-blind human studies against placebo; dulaglutide was an active control in healthy participants. Safety and tolerability were primary.
Read summary →A 52-week, randomized, double-blind phase 2 trial compared five once-daily semaglutide doses with liraglutide and matched placebo, alongside diet and physical-activity counseling. Percentage weight loss at week 52 was the primary outcome.
Read summary →An Endocrine Society task force updated its clinical practice guideline on diagnosing, treating, and monitoring hypogonadism in men.
Read summary →A randomized, double-blind trial compared intravenous elamipretide with placebo. The primary outcome was change in six-minute walking distance after five days.
Read summary →An abstract-based overview explained how the gut peptides GIP and GLP-1 contribute to the incretin response and relate to type 2 diabetes, obesity and incretin-based medicines.
Read summary →SUSTAIN 7 was a randomized, open-label phase 3b trial comparing weekly semaglutide with dulaglutide; HbA1c and body weight were assessed at week 40.
Read summary →This prespecified secondary analysis of the randomized LEADER trial compared liraglutide with placebo, added to usual care, for a composite kidney outcome.
Read summary →Randomized cardiovascular-safety trial comparing semaglutide with placebo, tracking cardiovascular death, nonfatal heart attack or stroke.
Read summary →Randomized trial comparing liraglutide with placebo alongside standard care, tracking cardiovascular death, nonfatal heart attack or stroke.
Read summary →Three linked trials compared testosterone gel with placebo for one year, assessing sexual function, walking performance and vitality.
Read summary →A randomized phase 2 trial tested daily subcutaneous liraglutide versus placebo for non-alcoholic steatohepatitis over the treatment period.
Read summary →Two randomized, double-blind, double-dummy phase III studies compared two oral enclomiphene doses with topical testosterone gel; the studies were placebo-controlled.
Read summary →This preclinical discovery program sought a once-weekly GLP-1 analogue with stronger albumin binding and stability against metabolic degradation.
Read summary →This 56-week randomized, double-blind trial compared daily liraglutide 3.0 mg, liraglutide 1.8 mg, and placebo; every group also received a calorie deficit and increased physical activity.
Read summary →Randomized trial comparing liraglutide with placebo for weight loss, with lifestyle counseling in both groups.
Read summary →Discovery research identified MOTS-c, a mitochondrial peptide, and investigated its cellular actions and metabolic effects.
Read summary →A double-blind randomized trial compared tesamorelin with placebo for six months. Primary outcomes were visceral abdominal fat and liver fat.
Read summary →This update describes the biology of human visceral obesity, its cardiometabolic associations, and possible management approaches.
Read summary →The study examined how YK-11 affects muscle-cell development and follistatin, a protein involved in muscle biology.
Read summary →A single-center randomized trial compared one year of oxandrolone with placebo after severe burns, with follow-up for up to four years after therapy. Exercise versus standard care was separately randomized.
Read summary →Mechanistic research compared tendon explants and cultured tendon fibroblasts with and without BPC 157 to investigate tendon-healing pathways.
Read summary →Randomized trial comparing daily testosterone gel with placebo for 6 months, with adverse events and physical performance assessed.
Read summary →This Endocrine Society clinical-practice guideline addressed evaluation and treatment of androgen-deficiency syndromes in adult men.
Read summary →A randomized trial compared tesamorelin injections with placebo for 26 weeks. The primary outcome was abdominal visceral-fat change measured by CT.
Read summary →A predominantly open-label study assessed recombinant human IGF-I treatment in children with severe IGF-I deficiency due to growth-hormone insensitivity.
Read summary →Two randomized, double-blind trials compared long-acting CJC-1295 with placebo, measuring growth hormone, IGF-I and drug-processing characteristics.
Read summary →A randomized dose-response experiment compared five testosterone-enanthate groups over 20 weeks after suppressing participants' natural testosterone production. Energy and protein intake were standardized.
Read summary →Research compared thymosin beta-4 with saline in a rat skin-wound model, alongside laboratory tests of skin-cell migration.
Read summary →An open-label randomized study compared nandrolone alone with nandrolone plus supervised resistance training for 12 weeks.
Read summary →Randomized trial comparing weekly testosterone enanthate or placebo, each with or without standardized resistance training.
Read summary →A controlled study observed older men for six baseline months, then compared growth-hormone treatment with no treatment for six months.
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