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Glossary Secondary Hair Follicles

smaller hair-producing structures that develop alongside primary follicles

Secondary hair follicles are smaller hair-producing structures that develop alongside primary hair follicles, typically in mammals with dense fur or wool. They produce finer, shorter hairs that contribute to the overall thickness and insulation properties of the animal's coat. These follicles are crucial for maintaining the density and texture of the fur, especially in species adapted to cold environments.

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Research

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research Disruption of FGF5 in Cashmere Goats Using CRISPR/Cas9 Results in More Secondary Hair Follicles and Longer Fibers

104 citations , October 2016 in “PLoS ONE”

This study found that CRISPR/Cas9-mediated disruption of the FGF5 gene in goats increased hair follicle numbers and fiber length, suggesting more cashmere production could be achieved.

research Growth of secondary hair follicles of the Cashmere goat in vitro and their response to prolactin and melatonin.

56 citations , August 1994 in “PubMed”

This study found that prolactin and melatonin both stimulated hair shaft elongation in Cashmere goat hair follicles, with maximum growth observed at specific concentrations, although melatonin reduced follicle viability after 96 hours.

Melatonin Promotes Secondary Hair Follicle Development in Early Postnatal Cashmere Goats and Improves Cashmere Quantity and Quality by Enhancing Antioxidant Capacity and Suppressing Apoptosis

research Melatonin promotes secondary hair follicle development of early postnatal cashmere goat and improves cashmere quantity and quality by enhancing antioxidant capacity and suppressing apoptosis

46 citations , March 2019 in “Journal of Pineal Research”

The study found that melatonin treatment in early postnatal cashmere goats increased both the quantity and quality of cashmere by promoting secondary hair follicle development and enhancing antioxidant enzyme activities.

Melatonin Promotes Cashmere Goat (Capra Hircus) Secondary Hair Follicle Growth: A View from Integrated Analysis of Long Non-Coding and Coding RNAs

research Melatonin promotes Cashmere goat (Capra hircus) secondary hair follicle growth: a view from integrated analysis of long non-coding and coding RNAs

32 citations , May 2018 in “Cell Cycle”

This study found that melatonin exposure promoted hair follicle fiber growth in Cashmere goat cultures, potentially influencing pathways related to the microvascular system and extracellular matrix.

Comparative Transcriptome Analysis Reveals That a Ubiquitin-Mediated Proteolysis Pathway Is Important for Primary and Secondary Hair Follicle Development in Cashmere Goats

research Comparative Transcriptome Analysis Reveals that a Ubiquitin-Mediated Proteolysis Pathway Is Important for Primary and Secondary Hair Follicle Development in Cashmere Goats

31 citations , October 2016 in “PLoS ONE”

This study suggests that UMPP activation is a key signaling pathway in differentiating primary and secondary hair follicles in cashmere goats.

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Community Join

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community Secondary shedding, 6 months into oral minoxidil/finasteride 3mg chewables

55 upvotes 4 months ago

The user experienced significant hair regrowth and increased density after six months of using oral minoxidil and finasteride chewables, despite going through a secondary shedding phase. The only side effect mentioned was restlessness, and the user feels healthier overall.

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 Why is dht bad for scalp hair but good for hair on the rest of body?

in Satire 109 upvotes 3 years ago

The conversation discusses why DHT (dihydrotestosterone) negatively affects scalp hair but promotes growth elsewhere on the body. Various opinions include genetic predispositions, differences in hair follicle reactions to DHT, and the potential role of Omega-3 in reducing inflammation and promoting hair health.

community It’s all about the stem cells…

53 upvotes 4 years ago

Hair loss is linked to the loss of stem cells in hair follicles, and potential treatments include gene editing and microneedling. Discussions also mention using Minoxidil, finasteride, and dermarolling to improve hair growth.

community Pelage, PP405, is creating a database for potential new trial volunteers

148 upvotes 11 months ago

PP405 is a new hair loss treatment targeting dormant hair follicles, with ongoing trials. Some users consider stopping finasteride and minoxidil to join trials, while others doubt its effectiveness.

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Learn

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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.

Can hair be taken from other parts of the body for hair transplantation? Body hair can be used for transplantation but is generally a secondary option.
What is a hair transplant? A hair transplant is a surgical procedure that relocates hair follicles to areas of thinning.
What are the risks and side effects of FUE hair transplants? Providers describe most FUE side effects, such as swelling, redness, numbness and shock loss, as temporary, but FUE is surgery and the same sources report pain, infection, folliculitis and small permanent donor-site scars. Longer-lasting problems, including visible donor-area thinning or poor graft growth, are possible and are not covered by this provider survey.
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