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    Did you mean Phosphodiesterase?
    GlossaryPhosphodiesterase

    enzyme that breaks down cyclic nucleotides in cells

    Phosphodiesterase (PDE) is an enzyme that plays a crucial role in cellular signaling by breaking down cyclic nucleotides like cAMP and cGMP, which are molecules that transmit signals inside cells. By regulating the levels of these cyclic nucleotides, PDEs help control various physiological processes, including heart rate, inflammation, and even hair growth.

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      community Does caffeine inhibit 5-α-reductase?

      in Treatment  4 upvotes 6 years ago
      Caffeine may promote hair growth and potentially inhibit 5-α-reductase activity in hair follicles, but its effectiveness and systemic impact remain unclear. Users discuss using topical caffeine solutions, with some experiencing no side effects compared to finasteride.

      community Could creatine trigger faster hairloss?

      in Research/Science  29 upvotes 1 year ago
      Creatine is reported by many to increase hair loss, though no scientific evidence supports this. Some use finasteride and minoxidil to manage hair loss, while others avoid creatine due to personal experiences.
      FCE 28260: A Forgotten 5α-Reductase Inhibitor

      community FCE 28260: A Forgotten 5α-Reductase Inhibitor

      in Research  330 upvotes 1 year ago
      FCE 28260 (PNU 156765), an under-explored 5α-reductase inhibitor, showcases promising results in research by Giudici et al., outperforming well-known treatments like Finasteride in reducing the conversion of testosterone to DHT. Its superior efficacy, demonstrated through lower IC50 values in both natural and human recombinant enzyme studies, suggests it could offer more effective management of DHT-related conditions. Additionally, its lower molecular weight hints at better potential for topical application, potentially offering advantages in treating conditions such as androgenic alopecia. Despite its potential, it has not advanced in development, possibly due to financial limitations, leaving its therapeutic prospects and side effect profile largely unexplored.

      community P5P supplementation for fin sides.

      in Treatment  7 upvotes 4 years ago
      P5P supplementation helped reverse finasteride side effects, particularly by lowering prolactin levels and restoring sensitivity. The user experienced significant improvement within a day and full recovery in a few days.

      community DLQ01: A Better "Minoxidil" PGF2a synthetic analogue.

      in Research/Science  3 upvotes 1 year ago
      DLQ01, a prostaglandin F2α analog, shows promise for hair growth by directly stimulating PGE2/PGF receptors without needing conversion, and can be combined with minoxidil and retinoids like tretinoin for enhanced effectiveness. Minoxidil's efficacy may be reduced by COX-1 inhibitors, but using prostaglandin analogs like Latanoprost or Bimatoprost can help maintain its effectiveness.
      PP405 Identity Research

      community PP405 Identity Research

      in Research  292 upvotes 8 months ago
      PP405 is a potential hair loss treatment that inhibits mitochondrial pyruvate carriers, increasing lactate dehydrogenase activity and stimulating hair follicle stem cells. In a phase 1 trial, 31% of participants showed over 20% hair density increase with PP405 treatment.

      community Why doesn't phase 3 of PP405 start straight away?

      in Chat  14 upvotes 4 months ago
      Pelage is delaying the start of phase 3 trials for PP405 to 2026 due to necessary regulatory processes, despite having $120 million in funding. Users discuss the potential of PP405 for hair regrowth, with some expressing skepticism and others hopeful for new treatments like Breezula.

      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 How long are Pelage going to milk the phase 2a results of PP405?

      in Chat  21 upvotes 3 months ago
      PP405, a potential hair loss treatment, is facing delays in releasing Phase 2 results, causing frustration among users who compare it to past failed treatments. Despite skepticism, some remain hopeful about PP405's future, while others discuss alternative treatments like Clascoterone and its expected market release.

      community PP405 (Non) Update - Feb 2025

      in Research/Science  34 upvotes 1 year ago
      The conversation discusses the delay in the PP405 Phase 2 study results, now expected by the end of 2025, and skepticism about research practices. There is also mention of optimism for Amplifica's AMP303 and a topical treatment in early testing.

      community Pp405 phase 2a clinical results

      in Research/Science  40 upvotes 10 months ago
      PP405 shows initial promise for treating androgenetic alopecia, with safety confirmed in early trials, but skepticism remains due to limited data. Further trials are needed to determine its true efficacy and potential market impact.

      community New Hair Loss Cure: AMP-303 Is Back. It’s what PP405 should have been.

      in Research/Science  4 upvotes 1 month ago
      AMP-303 and AMP-601 are new hair loss treatments targeting dermal papilla cells, with AMP-303 showing early efficacy in transitioning vellus hairs to terminal hairs after one injection. Further clinical trials are planned, and these treatments are seen as promising due to their biologic approach and less frequent application compared to daily treatments.

      community The story of RU58841/PSK3841

      in Research/Science 1 year ago
      RU58841, an anti-androgenic compound, showed early promise for treating alopecia but faced challenges after its patent in 1997. Despite advancing to Phase II trials, safety concerns and financial struggles led Aventis to abandon its development. Proskelia, which later merged into ProStrakan, couldn't prioritize the drug, leading to its eventual stagnation and failure to reach the market.

      community Does anyone know of the actual effectiveness of the DP2 inhibitors?

      in Question  4 upvotes 8 years ago
      Setipiprant and Fevipiprant are questioned for their effectiveness in hair maintenance, with skepticism due to lack of convincing results beyond vellus hair growth. The user is satisfied with Minoxidil and Finasteride but is curious about the potential of DP2 inhibitors.

      community Does anyone know the chemical formula for pelage pp405?

      in Research/Science  14 upvotes 1 year ago
      The conversation discusses the lack of public information on the chemical structure of PP405, a hair loss treatment, and the challenges of synthesizing it without a patent. It also explores a patent related to hydrogen-based topical formulations for reducing oxidative stress and inflammation.

      community Put P5P in my shampoo, reduced itch a lot!

      in Chat  4 upvotes 3 years ago
      The user added P5P (vitamin B6) to their shampoo to reduce scalp itch, which improved significantly. They have been using finasteride for hair loss but are exploring additional treatments like topical antiandrogens and prolactin inhibitors.