127 citations,
January 2015 in “Journal of Biological Rhythms” The skin's internal clock affects healing, cancer risk, aging, immunity, and hair growth, and disruptions can harm skin health.
86 citations,
September 2014 in “Journal of The American Academy of Dermatology” To diagnose hair loss, use a systematic approach including history, exams, and tests.
70 citations,
May 2016 in “Urologic Clinics of North America” The document explains how the male reproductive system works, its role in making testosterone, and how conditions like obesity can disrupt it, leading to low testosterone and fertility issues.
56 citations,
October 2008 in “European journal of endocrinology” Metformin and rosiglitazone improve blood vessel function in women with PCOS, with metformin also reducing insulin resistance and testosterone levels.
51 citations,
January 2001 in “Biological & Pharmaceutical Bulletin” The bark of Myrica rubra contains compounds that can block testosterone effects and might help prevent hair loss.
51 citations,
November 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” Beard cells, unlike scalp cells, produce growth factors in response to testosterone, which may explain differences in hair growth.
46 citations,
October 2009 in “Archives of Dermatology” Loose anagen hair syndrome, often affecting young girls, can be diagnosed with a hair-pull test and usually gets better on its own, but severe cases may need treatment.
35 citations,
July 2022 in “Baillière's best practice and research in clinical endocrinology and metabolism/Baillière's best practice & research. Clinical endocrinology & metabolism” Androgens like testosterone are important hormones for both men and women, made differently in each sex and affecting the body by regulating genes and quick interactions with cell components.
34 citations,
June 2005 in “Developmental dynamics” Runx3 helps determine hair shape.
28 citations,
December 2018 in “Clinical Obstetrics and Gynecology” Testosterone therapy seems safe and effective for transgender men with proper care, but more long-term research is needed.
24 citations,
January 2019 in “Biomaterials Science” The shape of fibrous scaffolds can improve how stem cells help heal skin.
22 citations,
January 2001 in “Chemical & Pharmaceutical Bulletin” Some new progesterone derivatives are better at blocking testosterone conversion than a common drug.
19 citations,
July 2013 in “The obstetrician & gynaecologist” The document concludes that careful evaluation is needed to diagnose PCOS correctly due to similar symptoms in other conditions, and accurate testosterone level measurement is crucial.
12 citations,
February 2021 in “Comprehensive psychoneuroendocrinology” Hormone levels in hair change during pregnancy, with progesterone increasing significantly compared to non-pregnant women.
12 citations,
October 2018 in “Aging male/The aging male” Higher BMI and lower testosterone are linked to more aggressive prostate cancer.
8 citations,
December 2022 in “International journal of molecular sciences” Mice without the enzyme HSD17B3 still produce normal testosterone, suggesting they have different ways to make it compared to humans.
7 citations,
January 2003 in “Elsevier eBooks” Testosterone is crucial for development, growth, and various body functions in mammals.
6 citations,
June 2019 in “Endocrinology and Metabolism Clinics of North America” Testosterone therapy for transmasculine individuals is generally safe with medical supervision, improves mental health, and has mixed effects on physical health.
2 citations,
July 2023 in “Water” Tradescantia plants can effectively test for the toxicity of harmful algae.
2 citations,
January 2023 in “BioMed Research International” Beetroot extract nanogel may help treat hair loss caused by testosterone.
2 citations,
January 2022 in “Clinical, Cosmetic and Investigational Dermatology” The refined wash test is a reliable way to measure daily hair loss and can tell the difference between different types of hair loss.
2 citations,
January 2017 in “Endocrinology” Testosterone and its metabolites have varied effects on different body systems, especially during puberty.
2 citations,
September 2013 in “Journal of Investigative Dermatology” Nuclear shape and chromatin changes affect gene expression in skin cell differentiation.
1 citations,
February 2023 in “Applied sciences” The new topical growth hormone formula has high skin penetration and bioavailability.
1 citations,
July 2015 in “Cambridge University Press eBooks” Testosterone therapy can improve sexual function in women but long-term safety is unclear.
December 2023 in “International journal of molecular sciences” Chromosomal differences affect how muscle cells respond to testosterone.
August 2023 in “IntechOpen eBooks” More research is needed to understand how testosterone is maintained in adult males.
July 2021 in “Advances in laboratory medicine” Diagnosing sex development disorders requires combining medical history, physical exams, imaging, lab tests, and genetic data.
December 2016 in “Princeton University Press eBooks” The document concludes that understanding health requires considering evolutionary perspectives on reproductive fitness, and recognizing the complexity of factors like diet, testosterone, and sexual orientation.
The document tests knowledge and decision-making in hematology through multiple-choice questions.