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Glossary Hair Follicle Atrophy

gradual shrinking and weakening of hair-producing structures

Hair follicle atrophy refers to the gradual shrinking and weakening of hair follicles, which are the tiny structures in the skin that produce hair. This process can lead to thinner hair or even hair loss, as the follicles become less capable of supporting healthy hair growth. It can be caused by factors such as aging, hormonal changes, or certain medical conditions.

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Research

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Skin Physiology in Microgravity: A 3-Month Stay Aboard ISS Induces Dermal Atrophy and Affects Cutaneous Muscle and Hair Follicles Cycling in Mice

research Skin physiology in microgravity: a 3-month stay aboard ISS induces dermal atrophy and affects cutaneous muscle and hair follicles cycling in mice

48 citations , May 2015 in “NPJ microgravity”

In this study, mice exposed to prolonged space conditions demonstrated skin atrophy, altered hair follicle cycles, and significant changes in the gene expression associated with skin muscle health.

Epithelial Cells in the Hair Follicle Bulge Do Not Contribute to Epidermal Regeneration After Glucocorticoid-Induced Cutaneous Atrophy

research Epithelial Cells in the Hair Follicle Bulge do not Contribute to Epidermal Regeneration after Glucocorticoid-Induced Cutaneous Atrophy

23 citations , July 2007 in “The journal of investigative dermatology/Journal of investigative dermatology”

This study found that follicular stem cells in hair follicles are more sensitive to the antiproliferative effects of glucocorticoids compared to basal keratinocytes due to incomplete desensitization.

research Nestin-Expressing Stem Cells from the Hair Follicle Can Differentiate Into Motor Neurons and Reduce Muscle Atrophy after Transplantation to Injured Nerves

7 citations , September 2013 in “Tissue engineering. Part A”

This study suggests that nestin-expressing hair follicle stem cells, when transplanted into transgenic mice with sciatic nerve injury, can differentiate into motor neurons and reduce muscle atrophy.

research Loss of Vascular Endothelial Growth Factor in Human Alopecia Hair Follicles

47 citations , May 1995 in “Journal of Investigative Dermatology”

Hair follicles in people with alopecia have lower levels of a key blood vessel growth protein.

research Aberrant Wnt Signaling Induces Comedo-Like Changes in the Murine Upper Hair Follicle

4 citations , December 2021 in “The journal of investigative dermatology/Journal of investigative dermatology”

This study found that persistent activation of Wnt signaling in mouse models leads to cyst formation in hair follicles, resembling acne, and that these cysts can be partially reduced by certain acne treatments.

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Community Join

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community Anyone here have a lot of knowledge on hair follicle stem cells and progenitor cells for PP405?

in Chat 4 upvotes 8 months ago

Hair follicle stem cells remain in bald individuals, but progenitor cells do not, raising questions about hair regrowth claims by Pelage. PP405 is discussed as a potential treatment, with skepticism about its effectiveness compared to existing treatments like Minoxidil and Finasteride.

community Can pp405 revive dead follicles for long time bald people? Are those even dead? After 10+ years bald

47 upvotes 1 year ago

PP405 may revive dormant hair follicles but is unlikely to help with long-term baldness where follicles are replaced by scar tissue. It is seen as a potential adjunct to treatments like minoxidil and finasteride, but its effectiveness on deeply fibrotic or scarred areas is doubtful.

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 19M. How many of you see meds as a full solution vs something to be on until more advancements?

6 upvotes 2 months ago

Minoxidil, finasteride, and dutasteride are commonly used for hair loss treatment, with some users seeing them as long-term solutions while awaiting future advancements like hair follicle cloning or gene engineering. Some users also consider additional treatments like anti-inflammatories, PRP, and hair transplants, but remain skeptical about a definitive cure.

community Microneedling must reach the stem cells in the upper hair shaft

82 upvotes 4 years ago

Microneedling should target depths of 0.5mm to 1.5mm for hair loss, with weekly sessions at 1mm recommended. Combining microneedling with Minoxidil is common for improved results.

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Learn

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learn Fluocinolone

Can long-term use of Fluocinolone affect the health of hair follicles? There is no long-term human trial measuring what topical fluocinolone does to hair follicles; what is documented is the label's warning about skin atrophy with prolonged use, plus a 2007 mouse study suggesting hair-follicle bulge stem cells do not repair steroid-induced atrophy.

learn Overview

learn Niacinamide

How does Niacinamide support the hair follicle’s nutrition? Niacinamide nourishes hair follicles by boosting energy production and supporting antioxidant defenses.

learn oleic acid

How does Oleic Acid support hair follicle strength and growth? Oleic acid strengthens hair follicles by enhancing hydration and reducing inflammation.

learn zinc PCA

Why is zinc important for preventing hair loss and supporting hair follicle function? Zinc is crucial for hair follicle health, supporting growth and repair processes.

learn Scalp Micropigmentation

Will scalp micropigmentation damage my existing hair or follicles? Scalp micropigmentation does not damage existing hair or follicles.

learn Hair Transplant

Hair transplantation moves DHT-resistant follicles from a donor area (back and sides of the scalp) into thinning or bald areas. The transplanted hair is generally permanent, though surrounding native hair can keep thinning.

learn Latanoprost

glaucoma medication with hair follicle stimulant effects

learn Verteporfin

chemical that might completely regrow follicles from hair transplant extractions

learn Hair Multiplication

extract, clone, and reinsert your own hair cells

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Clinics

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Experts

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Unscored
SMP Specialist
Hairo Fallas
Newark, NJ, United States

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Hairo Fallas