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    GlossaryEpithelial Sac

    small, enclosed structure of epithelial cells around hair follicle

    An epithelial sac is a small, enclosed structure composed of epithelial cells, which are cells that line the surfaces and cavities of the body. In the context of hair biology, an epithelial sac can refer to the structure that surrounds the developing hair follicle, playing a crucial role in the formation and growth of hair. This sac provides a protective environment and supplies necessary nutrients to the growing hair shaft.

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      If You Have DUPA, PLEASE READ THIS: Everyone Should Be Scalp Biopsied

      community If You Have DUPA, PLEASE READ THIS: Everyone Should Be Scalp Biopsied

      in Research  830 upvotes 8 months ago
      Scalp biopsies are crucial for diagnosing hair loss conditions like Diffuse Unpatterned Alopecia (DUPA) and retrograde hair loss, as treatments like finasteride and dutasteride may not be effective if other conditions are present. Combining PPAR-GAMMA agonists with retinoids could improve treatments for conditions like Lichen Planopilaris.

      community abusing caffeine boosts DHT levels!

      in Research/Science  1 upvotes 6 months ago
      Caffeine intake may increase DHT levels, but its impact on hair loss is minimal compared to genetic factors. Excessive caffeine can cause health issues, and its effects on hair loss are not directly applicable to humans based on rat studies.

      community Fresh off the press: Dutasteride may cause chronic infertility

      in Research/Science  639 upvotes 2 weeks ago
      Dutasteride may cause chronic infertility by reducing semen volume and motility, with concerns about irreversible prostate fibrosis. Users consider switching to finasteride or using treatments like minoxidil and microneedling, weighing hair preservation against fertility.