Hair Follicle Group And Skin Follicle Population Of Australian Merino Sheep

January 1957 in “ Australian Journal of Agricultural Research ”

HB Carter, WH Clarke

hair follicle skin follicle biopsy histological sections follicle population densities fibre diameters genetic studies fleece structure hereditary origin

TLDR Certain hair follicle traits in Merino sheep may be inherited.

The study examined skin specimens from 495 Australian Merino ewes across 22 flocks, representing four important strains. Using a standard biopsy method, the researchers analyzed histological sections to estimate various follicle population densities and fibre diameters. The data, including mean and standard error for each flock, serve as a foundation for future genetic studies on fleece structure. The study highlights the potential hereditary origin of certain extreme variants in hair follicle groups.

View this study on publish.csiro.au →

Discuss this study in the Community →

Related Community Posts Join

6 / 1000+ results

community If You Have DUPA, PLEASE READ THIS: Everyone Should Be Scalp Biopsied

in Research 830 upvotes 5 months ago

Scalp biopsies are crucial for diagnosing hair loss conditions like Diffuse Unpatterned Alopecia (DUPA) and retrograde hair loss, as treatments like finasteride and dutasteride may not be effective if other conditions are present. Combining PPAR-GAMMA agonists with retinoids could improve treatments for conditions like Lichen Planopilaris.

community I am a dermatologist with a clinical interest in alopecia. AMA

in Will treatment work for me? 2 years ago

In this conversation, 4990 discussed various treatments for hair loss, including oral minoxidil, PRP, transplan, Jak inhibitors, Dutasteride, Finasteride, Olumiant, Ketoconazole, RU58841, microneedling, baricitinib, and CCCA. They recommended scalp biopsies in unclear cases of DUPA, twice weekly to twice daily shampooing for topical minoxidil users, and two sessions spaced one month apart with follow up at month three to determine the effectiveness of PRP treatment.

community One year of progress (Fin, 1mg)

in Is this regrowth? 281 upvotes 1 month ago

The user started finasteride (1mg) a year ago for hair thinning, experiencing stabilization but not significant regrowth. Suggestions included adding minoxidil, microneedling, and considering a hair transplant for improved results.

community PP405: The Ultimate Hair Loss Drug for Complete Hair Growth

in Research/Science 206 upvotes 1 month ago

PP405 is a new hair loss treatment in phase 2 trials that may promote hair growth by increasing lactate production and activating hair follicle stem cells. It could potentially replace hormone-disrupting treatments like Minoxidil and finasteride.

community Is this broscience? From More Plates, More Dates

in Research/Science 23 upvotes 11 months ago

The conversation discusses whether finasteride's reduction of DHT and increase in scalp testosterone contribute to hair follicle miniaturization. Some participants argue testosterone does not cause miniaturization, while others suggest that even with reduced DHT, other androgens like testosterone may still contribute to hair loss.

community "Finasteride Lore: Reversing Hair Loss Takes Years. Not Months." for all the people who worry about results after 3 months on Finasteride, or even worse stop taking it becuase "it wasn't working for me

in Finasteride/Dutasteride 140 upvotes 6 months ago

Finasteride can take years to show results, not months. Dutasteride may work faster but is less commonly prescribed.

Similar Research

5 / 1000+ results

research Hair Matrix Germinative Epidermal Cells Confer Follicle-Inducing Capabilities on Dermal Sheath and High Passage Papilla Cells

61 citations, October 1996 in “Development”

Hair growth can be stimulated by combining certain skin cells, which can rejuvenate old cells and cause them to specialize in hair follicle creation.

research Advanced Medical Therapies in the Management of Non-Scarring Alopecia: Areata and Androgenic Alopecia

14 citations, November 2020 in “International Journal of Molecular Sciences”

Advanced therapies like gene, cell, and tissue engineering show promise for hair regrowth in alopecia, but their safety and effectiveness need more verification.

research Inhibition of β-Catenin Signaling in Dermal Fibroblasts Enhances Hair Follicle Regeneration During Wound Healing

87 citations, January 2016 in “Development”

Blocking β-catenin in skin cells improves hair growth during wound healing.

research Clinical Case Notes: Tamoxifen Optic Neuropathy

23 citations, February 2004 in “Clinical and Experimental Ophthalmology”

A boy with chromosome 13q deletion syndrome developed eye cancer, a woman with breast cancer lost vision due to a rare side-effect of her treatment, a man's vision worsened after using a hair loss drug, and two rare disorders were discussed. Optical Coherence Tomography is useful for diagnosing and monitoring these conditions.

research Neural Crest Cells Give Rise to Non-Myogenic Mesenchymal Tissue in the Adult Murid Ear Pinna

1 citations, August 2023 in “bioRxiv (Cold Spring Harbor Laboratory)”

Certain cells in the adult mouse ear come from cranial neural crest cells, but muscle and hair cells do not.