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GlossaryHypothalamic-Pituitary-Adrenal Axis

regulates stress response through hormone release from brain and adrenal glands

The Hypothalamic-Pituitary-Adrenal (HPA) Axis is a complex network involving the hypothalamus, pituitary gland, and adrenal glands, which work together to regulate the body's response to stress. When you encounter stress, the hypothalamus releases corticotropin-releasing hormone (CRH), prompting the pituitary gland to secrete adrenocorticotropic hormone (ACTH), which in turn stimulates the adrenal glands to produce cortisol, a key stress hormone. This system plays a crucial role in maintaining homeostasis and can impact various bodily functions, including immune response and metabolism.

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research Sex Differences in the Hypothalamic–Pituitary–Adrenal Axis’ Response to Stress: An Important Role for Gonadal Hormones

197 citations , January 2019 in “Neuropsychopharmacology”

Male and female bodies respond differently to stress, influenced by hormones and development stages, with implications for stress-related diseases.

research Extraction and Analysis of Cortisol from Human and Monkey Hair

101 citations , January 2014 in “Journal of Visualized Experiments”

The method effectively measures long-term stress levels using hair samples.

research Hair Cortisol: A Biomarker of Chronic Stress in Animals and Its Association With Reproduction

May 2023 in “Animal Reproduction Update”

High levels of cortisol in hair show long-term stress which can lower fertility in animals.

research Treatment of Androgen Excess in Females: Yesterday, Today, and Tomorrow

9 citations , January 1997 in “Gynecological Endocrinology”

The document concludes that treating androgen excess needs patience, managing expectations is important, and many drugs used are not officially approved, suggesting cosmetic options for mild cases.

research Alopecia Areata: Overview and Insights from January 2018

290 citations , December 2017 in “Journal of The American Academy of Dermatology”

Alopecia areata is an autoimmune condition causing hair loss, influenced by genetics, stress, and diet, and may be prevented by a high soy oil diet.

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community EMA is re-examining Winlevi (clascoterone at lower concentration)

in Treatment 8 upvotes 5 months ago

Clascoterone in Winlevi, a topical AR antagonist, is being re-examined due to concerns about HPA axis suppression in adolescents, but it's unlikely to be banned for adult use in androgenetic alopecia (AGA). The European Medicines Agency recommended refusing Winlevi for acne vulgaris, but this may not affect Breezula's approval for AGA.

community Mechanism of action of alfatradiol (17 alpha estradiol)

in Research/Science 6 upvotes 1 year ago

The conversation discusses the mechanism of action of alfatradiol (17 alpha estradiol) in treating hair loss. It explores theories that it either inhibits 5 alpha reductase to prevent T->DHT conversion or aromatizes scalp T into 17-alpha-estradiol to save hair.

community Anyone remember Breezula, the promising hairloss drug that was perpetually 3 years away? Well, it's available right now as an acme treatment. Can we just directly apply to the scalp?

in Treatment 42 upvotes 4 years ago

The conversation discusses the availability of Breezula, a drug for hair loss, now being sold as an acne treatment, and whether it can be applied to the scalp. Users express skepticism about new hair loss treatments and suggest waiting for FDA approval.

community This could be it!!! New treatment increase hair 500%

in Research/Science 340 upvotes 3 weeks ago

Clascoterone (Breezula) shows a potential 500% increase in hair growth, possibly outperforming minoxidil and finasteride. It is in advanced trials, with hopes for FDA approval, but cost and side effects are concerns.

community There’s actually a quite good chance that next year, we might see a new treatment get FDA approval for the first time in nearly three decades.

in Research/Science 80 upvotes 10 months ago

Breezula, a potential new hair loss treatment, may receive FDA approval soon, but it is expected to be a weaker alternative to finasteride and minoxidil. Concerns include its twice-daily application and possible side effects like HPA axis suppression.

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