January 1986 in “Journal of Steroid Biochemistry” Women with severe acne, hirsutism, and androgenic alopecia often have higher levels of certain androgens, but the specific pattern can't be predicted just by looking at symptoms.
2 citations
,
August 1995 in “Acta agriculturæ Scandinavica. Section A, Animal science” Adult male raccoon dogs shed their winter fur in spring and grow new fur for winter in autumn.
130 citations
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January 1994 in “Differentiation” Mouse hair follicle cells briefly grow during the early hair growth phase, showing that these cells are important for starting the hair cycle.
6 citations
,
April 2017 in “Journal of Dermatological Science” Ovariectomized mice mimic postmenopausal hair loss, and estradiol helps maintain hair density.
9 citations
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February 2004 in “Veterinary Dermatology” Canine hair follicle cells metabolize DHEA and testosterone differently than human cells.
January 2016 in “Journal of SAFOG” Girls with PCOS and menstrual disorders have notably higher androgen hormone levels.
November 2023 in “Scientific reports” The research identified and described a gene important for hormone conversion in endangered catfish, which varies in activity during different reproductive stages and after hormone treatment.
13 citations
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August 1995 in “The Journal of Steroid Biochemistry and Molecular Biology” The activity of a specific rat enzyme in the prostate and epididymis is highly dependent on the acidity level.
51 citations
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January 2004 in “Domestic animal endocrinology” Melatonin implants and long daylight hours alter the timing of hormone release and hair growth in mouflon sheep.
25 citations
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October 2018 in “PloS one” Key genes regulate hair follicle phase changes in Inner Mongolia cashmere goats.
2 citations
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December 2021 in “BMC veterinary research” Long-term use of difluprednate eye drops in dogs can lead to hair loss and hormone imbalance.
20 citations
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January 1979 in “Journal of Experimental Zoology” Plucking hair speeds up the next hair growth, but hormones can change this timing.
17 citations
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November 1967 in “American Journal of Anatomy” Hairless mice have longer hair follicles and abnormal structures during the catagen phase.
April 2024 in “Women s Health Reports” Hyperandrogenemia is more significant for adolescent girls with irregular menses.
January 2006 in “Benzina: Revista d'excepcions culturals” Trienones are more effective at inhibiting the enzyme linked to hair loss than dienones.
1 citations
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August 2024 in “GeroScience” 10 citations
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July 2015 in “Veterinary Dermatology” Estradiol gel can cause hair loss in dogs.
Male goat smell increases reaction in young female goats' noses but doesn't cause them to start puberty early.
14 citations
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September 2007 in “Steroids” The study concluded that androstendione and DHEA are important for diagnosing high male hormone levels in women with excessive hair growth.
15 citations
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June 1986 in “Pediatric Dermatology” Androgens increase pigmentation in young hamsters, but estrogens can reverse this effect.
49 citations
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October 1988 in “The Journal of Clinical Endocrinology & Metabolism” Leuprolide effectively reduces hair growth in hirsute women at higher doses.
18 citations
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September 1979 in “DMW - Deutsche Medizinische Wochenschrift” Diane is effective for treating acne, seborrhoea, androgenic alopecia, and mild hirsutism in women.
28 citations
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June 2015 in “Journal of circadian rhythms” An individual's morning or evening preference can predict changes in their body clock gene expression.
68 citations
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April 1965 in “General and Comparative Endocrinology” The pituitary gland controls seasonal fur color changes in weasels.
37 citations
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November 2002 in “Biology of Reproduction” Prenatal antiandrogen treatment altered hormone levels in adult spotted hyenas, affecting males and females differently.
January 2002 in “NCSU Libraries Repository (North Carolina State University Libraries)” 17b-Estradiol in skin affects hair growth and tumor promotion.
110 citations
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January 1984 in “Progress in brain research” Gonadal hormones may influence sex differences in play fighting in animals, but their effect on human spatial behavior is unclear and needs more research.
52 citations
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October 2004 in “Veterinary dermatology” Melatonin and mitotane treatment led to hair re-growth in 62% of dogs with Alopecia X, but this was not always linked to normal hormone levels.
236 citations
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January 1951 in “Physiological zoology” Hair growth and pigmentation in mice involve specific stages crucial for research.
60 citations
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June 2007 in “Pharmacology Biochemistry and Behavior” Blocking progesterone metabolism can cause depression-like behavior in mice.