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GlossaryThyroid Hormone

regulates metabolism and energy production in the body

Thyroid hormone refers to the hormones produced by the thyroid gland, primarily thyroxine (T4) and triiodothyronine (T3). These hormones play a crucial role in regulating metabolism, energy production, and overall growth and development. Imbalances in thyroid hormone levels can lead to conditions such as hypothyroidism or hyperthyroidism, which can affect various bodily functions, including hair growth and health.

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Thyroid Hormones Directly Alter Human Hair Follicle Functions: Anagen Prolongation and Stimulation of Both Hair Matrix Keratinocyte Proliferation and Hair Pigmentation

research Thyroid Hormones Directly Alter Human Hair Follicle Functions: Anagen Prolongation and Stimulation of Both Hair Matrix Keratinocyte Proliferation and Hair Pigmentation

115 citations, August 2008 in “The Journal of Clinical Endocrinology & Metabolism”

Thyroid hormones help hair grow, reduce hair loss, and increase hair pigment.

Cloning of the Human Phenol Sulfotransferase Gene Family: Three Genes Implicated in the Metabolism of Catecholamines, Thyroid Hormones, and Drugs

research Cloning of the Human Phenol Sulfotransferase Gene Family: Three Genes Implicated in the Metabolism of Catecholamines, Thyroid Hormones, and Drugs

26 citations, February 1998 in “Chemico-Biological Interactions”

Scientists identified three genes important for processing certain brain chemicals, thyroid hormones, and medications.

Thyroid Hormones and Androgens Differentially Regulate Gene Expression in Testes and Ovaries of Sexually Mature Silurana Tropicalis

research Thyroid Hormones and Androgens Differentially Regulate Gene Expression in Testes and Ovaries of Sexually Mature Silurana Tropicalis

13 citations, July 2018 in “General and comparative endocrinology”

Thyroid hormones and androgens affect gene expression in frog reproductive organs differently between males and females.

research Profiling Steroid and Thyroid Hormones with Hair Analysis in a Cohort of Women Aged 25 to 45 Years Old

6 citations, February 2022 in “European journal of endocrinology”

The method can measure multiple hormones in women's hair and may help identify hormone-related health issues.

research Cell Type-Specific Actions of Thyroid Hormones in Nonalcoholic Steatohepatitis and Liver Fibrosis

3 citations, January 2024 in “Liver International”

Targeting thyroid hormone receptor α in liver cells may help treat liver fibrosis.

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community Update of my case, might have finally found what happened

in Minoxidil 6 upvotes 2 months ago

OP believes RU58841 affected their thyroid, causing hypothyroidism and impacting minoxidil's effectiveness. They plan to start thyroid medication to improve hair regrowth.

community Are these safe levels to start taking Finasteride (M, 25)?

in Finasteride/Dutasteride 11 upvotes 1 year ago

The conversation discusses concerns about starting finasteride with low testosterone levels, with one person suggesting finasteride might increase testosterone and decrease DHT, and another advising to pay attention to thyroid-stimulating hormone (TSH) levels.

community C’est terrible - at my wits end

in Female 443 upvotes 1 year ago

A 29-year-old woman is experiencing gradual hair thinning since age 15, suspects Androgenic Alopecia, and has tried 5% minoxidil with little success. She has purchased various hair loss treatments including minoxidil, dutasteride, finasteride, and spironolactone, but is cautious about starting them due to potential interactions with her ADHD medication.

community Reminder : Biotin is useless (expect if you are really deficient, and you're not)

in Chat 103 upvotes 2 years ago

Biotin supplements are not effective for hair loss unless you are actually deficient, which is rare. Some users report improved hair quality with biotin, but there's no evidence supporting its use for hair loss in healthy individuals.

community Next month marks 2 years on Dutasteride. When does it start working?

in Finasteride/Dutasteride 36 upvotes 5 months ago

A user has been on dutasteride for nearly 2 years with no improvement in hair loss, expressing frustration. Other users suggest checking for other health conditions, getting bloodwork, and considering stopping TRT or trying finasteride.

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