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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.

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

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.

15-Deoxy Prostaglandin J2, The Nonenzymatic Metabolite Of Prostaglandin D2, Induces Apoptosis In Keratinocytes Of Human Hair Follicles: A Possible Explanation For Prostaglandin D2-Mediated Inhibition Of Hair Growth

research 15-deoxy prostaglandin J2, the nonenzymatic metabolite of prostaglandin D2, induces apoptosis in keratinocytes of human hair follicles: a possible explanation for prostaglandin D2-mediated inhibition of hair growth

11 citations , May 2016 in “Naunyn-Schmiedeberg's Archives of Pharmacology”

This study found that 15-dPGJ2 promotes apoptosis in human follicular keratinocytes, suggesting its potential role in developing hair loss prevention treatments through DP2 antagonism.

research 0046 Antagonizing interferon-gamma receptor-1 signaling with topical SAMiRNA in human scalp skin protects hair follicles from immune privilege collapse and keratinocyte apoptosis

July 2026 in “Journal of Investigative Dermatology”

Non-Apoptotic Role for Caspase-7 in Hair Follicles and Surrounding Tissue

research Non-apoptotic role for caspase-7 in hair follicles and the surrounding tissue

6 citations , August 2015 in “Journal of Molecular Histology”

Caspase-7 has functions in skin and hair that are not related to cell death.

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Community Join

5 / 41 results

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 Dht kills hair, but no one says why?

in Finasteride/Dutasteride 40 upvotes 1 year ago

DHT affects hair follicles, contributing to hair loss, but the exact mechanism is unclear. Treatments like finasteride and minoxidil are used to manage hair loss, though they may have side effects and varying effectiveness.

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 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 is the reason why people are in denial about prolactin causing hair loss is the fact that prolactin is one of the hardest things to lower?

21 upvotes 2 years ago

High prolactin levels can cause hair loss, and finasteride may increase prolactin. Cabergoline or Vitamin B6 might lower prolactin, but combining them with finasteride requires caution.

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Learn

6 / 801 results

learn Melatonin

hormone commonly taken for sleep aid has some topical benefits for hair

learn Procyanidin

bioflavonoid found in plants with antioxidant and hair stimulating properties

learn Dexpanthenol

precursor of vitamin B5 with hair stimulating effects

learn GHK-Cu

a copper peptide showing promise in both regrowth and reversing gray hair

learn Overview

learn PP405

Got small bald patches they say are from stress? PP405 sprays could help bring them back to life. PP405 is an experimental topical gel from Pelage Pharmaceuticals that inhibits the mitochondrial pyruvate carrier; its registered Phase 2 trial (NCT06393452) tested it once daily in 78 adults with pattern hair loss, for safety and tolerability. It is not approved, not for sale, and has not been studied in alopecia areata or stress-related shedding.

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SMP Specialist
Hairo Fallas
Newark, NJ, United States

Hairo Fallas