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Glossary CD34+ cells

stem cells in blood and bone marrow with CD34 protein

CD34+ cells, also known as CD34 positive cells, are a type of stem cell found in the blood and bone marrow that have the CD34 protein on their surface. These cells are crucial for the formation of blood cells and are often used in medical treatments like bone marrow transplants to regenerate the blood and immune system.

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Research

5 / 1000+ results

research Bald scalp in men with androgenetic alopecia retains hair follicle stem cells but lacks CD200-rich and CD34-positive hair follicle progenitor cells

235 citations , January 2011 in “Journal of Clinical Investigation”

This study found that androgenetic alopecia may involve a defect in the conversion of hair follicle stem cells to progenitor cells, as demonstrated by a reduced presence of progenitor cells in bald scalp samples.

research The effect of CD34+ cell-containing autologous platelet-rich plasma injection on pattern hair loss: a preliminary study

88 citations , December 2012 in “Journal of The European Academy of Dermatology and Venereology”

This study found that interfollicular injection of autologous CD34+ cell-containing PRP preparation improved hair count and thickness in patients with pattern hair loss, with better results than placental extract treatment.

research Stem cell markers (cytokeratin 15, CD34 and nestin) in primary scarring and nonscarring alopecia

54 citations , January 2009 in “British Journal of Dermatology”

This study found that in scarring alopecia, stem cells are differentially localized, suggesting that both inner and outer root sheath stem cells, rather than just follicular bulge stem cells, are involved.

research CD34 ⁺ cell–derived fibroblast-macrophage cross-talk drives limb ischemia recovery through the OSM-ANGPTL signaling axis

39 citations , April 2023 in “Science Advances”

This study identified that bone marrow-derived CD34⁺ cells act as fibroblast progenitors to enhance tissue regeneration in ischemic limbs by promoting angiogenesis through interactions with macrophages.

research Participation of CD34-enriched mouse adipose cells in hair morphogenesis

16 citations , February 2013 in “Molecular Medicine Reports”

This study found that CD34+ cells from adipose tissue may enhance hair morphogenesis and participate in blood vessel formation in reconstituted skin tissues of mice.

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community PP405 Won’t Work: Follicle Is Miniaturized, Fibrosed, And Missing Key Support Cells

7 months ago

PP405 is ineffective for miniaturized, fibrosed hair follicles in androgenetic alopecia. AMP303 may activate hair follicle stem cells, but minoxidil and finasteride are still the main treatments.

community My Theory Of Androgenic Alopecia

16 upvotes 10 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 Amplifica: Hope or Cope? A Review of Their Pipeline

9 upvotes 1 month ago

Amplifica's AMP-303 showed a modest increase in hair growth, but results were inconsistent and potentially misleading. Hyaluronic acid and osteopontin are being explored for hair growth, with varying effects on different hair types and conditions.

community Prolactin the Cause of Hair Loss? ABS-201 the Cure?

29 upvotes 2 months ago

Prolactin may contribute to hair loss, but targeting its receptor won't cure androgenetic alopecia. ABS-201 could be a useful alternative or adjuvant therapy, similar to JAK inhibitors, but not more effective than HMI-115.

community ABS-201 KOL Seminar: Dr. Ralf Paus on Human Ex Vivo Hair Regrowth Data

17 upvotes 9 months ago

ABS-201 shows promise for male hair regrowth by blocking the prolactin receptor, with higher expected efficacy than current treatments. The discussion also covers dosing differences between macaques and humans for hmi115, highlighting a significant dosage disparity.

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