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Glossary Prostaglandin D2 Receptor

protein on cell surfaces that binds prostaglandin D2, affecting hair growth

The Prostaglandin D2 Receptor (often abbreviated as PTGDR or PTGDR2) is a protein found on the surface of certain cells that binds to prostaglandin D2, a type of lipid compound involved in various physiological processes. This receptor plays a significant role in inflammatory responses and has been linked to conditions like asthma and hair loss, particularly androgenetic alopecia, where its activation can inhibit hair growth.

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Molecular Cloning and Expression Analysis of Prostaglandin E Receptor 2 Gene in Cashmere Goat (Capra hircus) Skin During Hair Follicle Development

research Molecular Cloning and Expression Analysis of Prostaglandin E Receptor 2 Gene in Cashmere Goat (Capra hircus) Skin during Hair Follicle Development

2 citations , February 2014 in “Animal Biotechnology”

This study reported that the PTGER2 gene is strongly expressed in cashmere goat skin and its expression tends to decrease from the anagen to telogen stages of the hair follicle cycle.

research Human Scalp Hair Follicles Express Prostaglandin E2 Lipid Mediator and Receptors For Pge2

September 2013

This study found that isolated human scalp hair follicles express PGE2 genes and EP2 protein, suggesting PGE2 may play a crucial role in regulating hair growth.

research Prostaglandin E ₂ Receptor 2 Modulates Macrophage Activity for Cardiac Repair

29 citations , September 2018 in “Journal of the American Heart Association”

This study found that EP 2 signaling is crucial for macrophage recruitment and inflammatory regulation in the injured heart, impacting cardiac repair processes.

research Understanding the role of prostaglandin E2 in regulating human platelet activity in health and disease

35 citations , May 2015 in “Thrombosis Research”

This review synthesizes knowledge on Prostaglandin E2's role in platelet biology and suggests that targeting PGE2 pathways could lead to personalized antiplatelet therapy without affecting hemostasis, but it presents no new results.

Androgen Receptor Activation Integrates Complex Transcriptional Effects in Osteoblasts, Involving the Growth Factors TGF-β and IGF-I, and Transcription Factor C/EBPδ

research Androgen receptor activation integrates complex transcriptional effects in osteoblasts, involving the growth factors TGF-β and IGF-I, and transcription factor C/EBPδ

11 citations , July 2015 in “Gene”

This study found that dihydrotestosterone (DHT) suppresses prostaglandin E2 and TGF-β induced IGF-I gene promoter activity in osteoblasts, suggesting complex interactions among bone growth regulators and potential complications from anabolic steroid use.

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community Doubts about castor oil

5 upvotes 7 years ago

Castor oil's effectiveness for hair growth is debated, with concerns about its impact on skin health and prostaglandin levels. Some users suggest combining it with coconut oil and using it alongside finasteride for better results, while others recommend sticking to proven synthetic treatments.

community How far are we from a treatment better than finasteride?

in Treatment 129 upvotes 1 year ago

Dutasteride is more effective than finasteride for hair loss as it blocks more of the enzyme causing hair loss. New treatments like stem cell therapies and alternatives to minoxidil are being explored, but major advancements are still years away.

community Painkillers May Block Minoxidil

12 upvotes 1 year ago

Painkillers like Aspirin may reduce Minoxidil's effectiveness by inhibiting the enzyme PGHS-1, which is crucial for hair growth. Using NSAIDs that inhibit COX-2 or combining Minoxidil with PGF2/E2 analogues or retinoids may enhance its efficacy.

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Learn

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learn Cetirizine

How does cetirizine reduce inflammation linked to hair loss? Cetirizine is proposed to lower prostaglandin D2 and raise prostaglandin E2 around hair follicles; three small trials of a compounded 1% topical report modest increases in hair density and shaft thickness, with minoxidil doing better head-to-head. Topical cetirizine is off-label and unapproved for hair loss, and the evidence is too thin to call it effective or safe.

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