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Glossary Hormone Receptors

specialized proteins that bind hormones to trigger cellular responses

Hormone receptors are specialized proteins located on the surface of or inside cells that bind to specific hormones. When a hormone attaches to its receptor, it triggers a response in the cell, such as altering gene expression or changing cell behavior. This interaction is crucial for regulating various bodily functions, including growth, metabolism, and mood.

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Research

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research Hormone receptor positive, HER2 negative metastatic breast cancer: Impact of CDK4/6 inhibitors on the current treatment paradigm

4 citations , October 2018 in “Asia-Pacific Journal of Clinical Oncology”

This review discusses the use of CDK4/6 inhibitors with endocrine therapy in treating women with HR+ HER2- advanced breast cancer, but it reports no new clinical findings.

research Safety and quality of life of CDK4/6 inhibitors therapy for hormone receptor-positive, human epidermal growth factor receptor 2-negative advanced breast cancer: a multicenter cross-sectional survey in China

1 citations , May 2025 in “BMC Cancer”

In this study, the researchers found that different CDK4/6 inhibitors used in treating HR+/HER2- advanced breast cancer have varying safety profiles and impacts on patient quality of life.

research Real-World Safety Profile of Generic Palbociclib in Hormone Receptor–Positive, HER2-Negative Metastatic Breast Cancer: A Prospective Observational Study in Iraq”

June 2026 in “Journal of cancer research updates”

This study conducted in an Iraqi oncology setting found generic Palbociclib to have a safety profile consistent with previous data, with observed side effects including high rates of neutropenia and anemia, particularly among patients receiving it with Fulvestrant.

research Safety and patient-reported outcomes in patients with hormone receptor-positive, HER2-negative advanced breast cancer treated with CDK4/6 inhibitors in China: A cross-sectional study.

June 2024 in “Journal of Clinical Oncology”

This study observed that dalpiciclib is associated with fewer adverse events like diarrhea and hepatotoxicity compared to other CDK4/6 inhibitors, potentially offering better patient-perceived safety and quality of life.

research Hormones and Hair Growth: Variations in Androgen Receptor Content of Dermal papilla Cells Cultured from Human and Red Deer (Cervus Elaphus) Hair Follicles.

34 citations , July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology”

This study suggests that androgens influence hair follicle behavior via the dermal papilla, using evidence from human and red deer cells with differing androgen responses as models.

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Community Join

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community Gt20026 - the actual cure to hairloss?

4 upvotes 6 months ago

GT20026 is discussed as a potential treatment for hair loss that targets androgen receptors without affecting hormone levels, but it may not promote significant regrowth. It is expected to be available by 2028, with other treatments like Breezula and Clascoterone also mentioned.

community Why are there no meaningful baseline blood tests for pyrilutamide (KX-826) like there are for finasteride?

in Basic Questions 107 upvotes 2 months ago

Finasteride reduces DHT production, so blood tests can track hormonal changes. Pyrilutamide blocks androgen receptors without altering hormone levels, making blood tests less useful for detecting its effects.

community Why some people experience problems on Finasteride/Dutasteride (my theory)

in Research/Science 18 upvotes 9 months ago

Some people have side effects from finasteride and dutasteride due to hormonal predisposition, especially if DHT dominant. Alternatives like RU58841, Pyrilutamide, and Breezula are suggested to target scalp androgen receptors without altering overall hormones.

community My hormone levels after 2 months of Finasteride and 2 weeks of Dutasteride

12 upvotes 1 month ago

The conversation discusses elevated hormone levels after using Finasteride for 2 months and Dutasteride for 2 weeks for hair loss. Users suggest that increased testosterone and estradiol levels are expected due to DHT inhibition, and it's not a concern unless symptoms occur.

community Gartanin Degrades dht receptor found in mangosteen fruit. Gonna buy the raw powder mix it with castor oil and filter out the rest. And apply topically.

5 upvotes 8 years ago

The conversation discusses using gartanin from mangosteen mixed with castor oil to degrade the androgen receptor for hair loss treatment. Alternatives like setipiprant, minoxidil, and dermastamping are also mentioned, with concerns about cost and potential side effects.

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Learn

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learn Exosomes

What does Fluridil do on the scalp, and how does it block the DHT hormone? Fluridil blocks DHT by binding to androgen receptors in hair follicles, preventing hair loss.

learn Baicapil

Losing hair from hormonal imbalance? Baicapil might block DHT without messing with your hormones. No published study shows that Baicapil blocks DHT — the only data on the ingredient itself is the manufacturer's own unpublished dossier, and the baicalin research behind the claim is cancer cell-line work in which the effect was explicitly independent of the androgen receptor.

learn TDM-105795

How does TDM-105795 differ from more established hair loss ingredients when included in experimental or emerging treatments? TDM-105795 targets thyroid hormone receptors, differing from established treatments like minoxidil and finasteride.

learn Melatonin

hormone commonly taken for sleep aid has some topical benefits for hair

learn Cyproterone

a synthetic anti-androgen and weak progestogen that inhibits DHT binding to androgen receptor

learn Estradiol

an estrogen promoting hair regrowth more commonly used in women

Why is Estradiol used to treat hair loss in women and transgender people undergoing hormone therapy? Estradiol helps treat hair loss by balancing hormones and supporting hair follicle health.

learn sh-Polypeptide-7

learn Bicalutamide

a nonsteroidal anti-androgen, most commonly used orally for women

learn Centella

Sensitive to hormones? A centella scalp mask may help ease hidden inflamm Centella asiatica has anti-inflammatory and wound-healing effects in animal and cell studies, but no published research has tested a centella scalp mask on the human scalp, in hormonal contexts or otherwise, and no community reports were found of one being used this way.

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