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Glossary Keratinocyte Apoptosis

process where skin cells undergo programmed cell death

Keratinocyte apoptosis is the process by which keratinocytes, the primary cells in the outer layer of the skin, undergo programmed cell death. This is a natural and essential mechanism for maintaining skin health, as it helps remove damaged or unnecessary cells, allowing for the regeneration of new, healthy skin cells.

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research Indications for a brain‐hair follicle axis: inhibition of keratinocyte proliferation and up‐regulation of keratinocyte apoptosis in telogen hair follicles by stress and substance P

125 citations , September 2001 in “The FASEB Journal”

This study demonstrated that stress inhibited hair growth in mice, likely through substance P-dependent activation of immune cells, highlighting a brain-hair follicle connection.

research Activation of Cutaneous Protein Kinase Cα Induces Keratinocyte Apoptosis and Intraepidermal Inflammation by Independent Signaling Pathways

74 citations , September 2003 in “The Journal of Immunology”

This study found that PKCα activation in transgenic mice induces keratinocyte apoptosis and mediates neutrophilic skin inflammation via different pathways, suggesting potential mechanisms for cutaneous inflammatory diseases.

research Glycyrrhizic Acid Alleviates Osimertinib‐Induced Cutaneous Toxicity by Inhibiting Keratinocyte Apoptosis and Inflammation

April 2026 in “Phytotherapy Research”

This study found that glycyrrhizic acid may reduce the cutaneous toxicity caused by Osimertinib in mice, suggesting its potential as an adjunct treatment in clinical settings.

research Dihydrotestosterone Induces Keratinocyte Apoptosis by Activating ERK Signaling

August 2026 in “In Vivo”

This study found that DHT induces apoptosis in human keratinocyte cells via ERK activation, independently of androgen receptors and the Wnt/β-catenin pathway.

research Hydroxyl radical mediates cisplatin-induced apoptosis in human hair follicle dermal papilla cells and keratinocytes through Bcl-2-dependent mechanism

52 citations , May 2011 in “APOPTOSIS”

In this study, cisplatin was found to induce cell death in human hair follicle cells through hydroxyl radical generation and Bcl-2 down-regulation, suggesting potential strategies for preventing chemotherapy-induced alopecia.

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community Anti-oxidants that reverse hairloss?

86 upvotes 5 years ago

Resveratrol and fisetin, found in red wine and strawberries, may promote hair growth by affecting hair follicle cells. Users discuss various treatments, including natural remedies like saw palmetto and topical applications, with mixed opinions on their effectiveness compared to pharmaceuticals like finasteride.

community Weed/THC effects on hair growth/hair loss, and vitality of organ-culture human follicle studies (research review)

4 upvotes 1 year ago

Cannabis and THC may have mixed effects on hair, with some studies suggesting potential negative impacts on hair growth in isolated hair follicles, but these results are hard to apply to living humans. Treatments like minoxidil and finasteride are commonly used for hair loss, and the effects of cannabis might be neutral or vary based on individual factors.

community Sugars ARE important for hair growth | Glycosaminoglycans as Hair Growth Stimulant

74 upvotes 2 years ago

Glycosaminoglycans are important for hair growth, and combining minoxidil with tretinoin and Biopeptide-CL may enhance hair growth by boosting glycosaminoglycan levels and improving the hair follicle environment. Users discussed the potential effectiveness and future of these treatments.

community Someone please offer reassurance

in Minoxidil 3 upvotes 1 month ago

A 19-year-old male is experiencing hair shedding while using oral minoxidil, ketoconazole, dermastamping, and saw palmetto, and is considering switching to finasteride for better results. Users suggest that saw palmetto may not be effective and recommend finasteride instead, while also discussing other treatments like rosemary oil, peppermint oil, and pumpkin seed oil.

community Prevention of age-related beard graying in humans by the topical application of Eriodictyon angustifolium extract

5 upvotes 4 years ago

Topical application of Eriodictyon angustifolium extract can prevent and reverse age-related beard graying and darken gray hair by increasing melanin production. Sterubin, a component of the extract, also promotes hair pigmentation and protects cells from DNA damage.

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