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    Did you mean Programmed Cell Death Protein 1?
    GlossaryProgrammed Cell Death Protein 1

    regulates immune response by inhibiting T cell activity

    Programmed Cell Death Protein 1 (PD-1) is a protein found on the surface of immune cells, such as T cells. It plays a crucial role in regulating the immune system by preventing overactivation, which can lead to autoimmune diseases. PD-1 achieves this by binding to its ligands, PD-L1 and PD-L2, which are often expressed on cancer cells, thereby inhibiting the immune response against these cells. This mechanism is a target for cancer immunotherapy, where blocking PD-1 can enhance the body's ability to fight cancer.

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      community Comprehensive Microneedling Guide

      in Microneedling  288 upvotes 3 years ago
      Microneedling for hair restoration involves daily use of a 0.3 mm device and weekly use of a 0.5 mm device. Combining microneedling with Minoxidil can enhance hair growth.

      community Fats on your Head to Stop Hair Loss?

      in Research/Science  140 upvotes 2 years ago
      The conversation discusses the potential of long-chain unsaturated fatty acids, like oleic and linoleic acid, as an additional treatment for hair loss, which may inhibit the enzyme responsible for converting testosterone to DHT and promote hair growth. Users humorously suggest using oils topically and discuss other hair loss treatments, but the main focus is on the science behind fatty acids and their role in hair health.

      community Why I really believe the tension theory is the cause of MPB

      in Research/Science  70 upvotes 4 years ago
      The conversation discusses the tension theory as a cause of male pattern baldness (MPB), suggesting that scalp tension and reduced subcutaneous fat layer contribute to hair loss. Treatments mentioned include Minoxidil, finasteride, microneedling, scalp massages, and Botox.

      community Verteporfin and Microneedling

      in Treatments 1 year ago
      Clinical studies by Dr. Barghouthi and Dr. Bloxham indicate that Verteporfin, when used with FUE and FUT hair transplantation methods, shows promise in hair follicle regeneration and minimal scarring due to its ability to inhibit Yes-associated protein (YAP). Microneedling at depths of 3-3.5mm, combined with Verteporfin, could potentially reactivate dormant follicles, although the optimal dosage and application method are still under investigation. Concerns remain about the DHT sensitivity of regenerated follicles, highlighting the need for further research to optimize trauma levels and Verteporfin concentrations to achieve effective and scar-free hair regeneration.

      community Opinions on Scalp fibrosis and DHT?

      in Research/Science  9 upvotes 3 years ago
      The conversation discusses the theory that scalp fibrosis contributes to male pattern baldness (MPB) by increasing DHT concentration, and mentions treatments like Minoxidil. The user seeks opinions on the theory and the effectiveness of scalp massages.

      community Why I deleted my YouTube channel Part I

      in Update  118 upvotes 4 years ago
      A YouTuber named Kevin, also known as Rider_Of_Roach, who deleted his YouTube channel due to personal attacks and controversy surrounding his views on hair loss treatments. He advocated for FDA-approved treatments like finasteride and minoxidil but faced backlash from those who disagreed with him. The conversation also discusses his past trolling behavior and a lawsuit he filed against a website that published false information about him. Despite some disagreements, many viewers appreciated his research-based content and hope to see him return in the future.

      community My Theory Of Androgenic Alopecia

      in Research/Science  18 upvotes 4 months ago
      Hair loss is linked to cellular physiology and the IGF-1 to TGF-B1 ratio, not just androgen sensitivity. The theory lacks evidence, while finasteride and minoxidil are effective treatments.

      community Please explain this Minoxidil phenomena

      in Minoxidil  59 upvotes 2 years ago
      The post discusses the difference in effects of Minoxidil (Min) on scalp and facial hair. The user questions why Min-induced hair growth on the scalp is temporary, while facial hair growth seems permanent, even after stopping Min. They propose theories, including different Min mechanisms on body and facial hair, the role of DHT, and the possibility of not achieving fully terminal hair. The responses include personal experiences and theories about Min's effects on hair growth.

      community Genomic Sequencing for Hair Loss

      in Research/Science  156 upvotes 2 weeks ago
      Hair loss treatments like Minoxidil, finasteride, and potential mRNA therapies are discussed. There is skepticism about targeting specific genes due to the complex genetic nature of hair loss.

      community Why do we get bald from evolutionary perspective

      in Chat  213 upvotes 9 months ago
      Baldness is not an evolutionary disadvantage because it occurs after reproductive age. Treatments like Minoxidil and Finasteride are used for androgenetic alopecia but don't address the root cause.

      community It works. About a 1 year transformation.

      in Progress Pictures  613 upvotes 3 years ago
      A user's experience with hair loss treatments, specifically Minoxidil and finasteride, which they have used without side effects for a year. Other users shared their experiences and advice about potential side effects and supplements to help.

      community Anyone here going the “natural” route?

      in Scalp Massage  48 upvotes 3 years ago
      People discussing their experiences with natural treatments for hair loss, such as essential oils, deep scalp massages, anti-inflammatory measures, and supplements. Most of the replies suggest that these treatments are not effective and recommend medication such as minoxidil or finasteride instead.

      community Reddit’s amatorial meta analysis of 17 already avaliable hair loss prevention treatments that were found to be effective in clinical studies but are not FDA approved for MPB. PROS and CONS. (2022 Guide if Finasteride and Minoxidil are not working/ give you sides/are not enough) 77 studies linked!

      in Research/Science  586 upvotes 4 years ago
      The post and conversation are about hair loss treatments that have been found to be effective in studies. There are 19 different treatments mentioned, including oral minoxidil, oral dutasteride, topical finasteride, RU58841, and more. The best treatment for an individual depends on factors like availability, cost, side effects, and personal preferences.

      community Ginsenoside enriched formulation

      in Treatment 1 year ago
      Panax ginseng, specifically a ginsenoside-enriched formulation, is suggested as a potential hair growth treatment alongside finasteride and minoxidil. The user is considering trying panax ginseng despite limited availability and evidence.

      community Going to try and reverse MPB naturally.

      in Treatment  55 upvotes 4 years ago
      A user is trying to reverse male pattern baldness (MPB) naturally by taking high doses of Vitamin D, improving diet, exercising, reducing stress, and other lifestyle changes, but plans to use finasteride if no results are seen in 60 days. Other users are skeptical, advising medical treatments like finasteride and warning against potential vitamin D overdose and the ineffectiveness of natural remedies for genetic hair loss.

      community PP405 - hair stem cell stimulation

      in Research/Science  51 upvotes 2 years ago
      PP405, a topical LDH inhibitor, has shown to stimulate hair follicle stem cell proliferation in humans with moderate hair loss. They are advancing to more detailed trials this year.

      community DNA test result is incredible !

      in Technology  31 upvotes 2 months ago
      The conversation discusses a personalized hair loss treatment plan based on DNA test results, recommending Minoxidil, Dutasteride, 17-alpha Estradiol, Cetirizine, and PRP sessions. The test identifies a high risk of hair loss due to DHT but a good response to Minoxidil, suggesting a tailored approach to treatment.

      community Microneedling on oral fin only?

      in Microneedling  6 upvotes 2 years ago
      Microneedling may have benefits for hair loss even if only using oral finasteride without minoxidil. The effectiveness of microneedling without minoxidil is debated.