22 citations
,
September 1998 in “PubMed” Panax ginseng helps prevent hair follicle cell death and speeds up hair cell recovery after radiation in mice.
17 citations
,
April 2007 in “Kidney international” Vitamin D boosts a specific gene activity in kidney cells that could improve heart and kidney function.
7 citations
,
December 2011 in “Annals of anatomy” Involucrin helps strengthen the inner parts of human hair.
4 citations
,
January 1981 in “PubMed” Hair medullary cells in mammals vary in complexity, with humans having more structured cells similar to inner root sheath cells.
116 citations
,
August 2010 in “Nature” Scientists turned rat thymus cells into stem cells that can help repair skin and hair.
53 citations
,
August 2019 in “American journal of human genetics” FOXN1 gene variants cause low T cells and immune issues from birth.
March 2010 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Beard hair medulla cells have a unique and varied keratin pattern.
19 citations
,
July 1964 in “PubMed” Hair follicle cells become four types: medulla, cortex, cuticle, and inner root sheath.
April 2023 in “Journal of Investigative Dermatology” Hair growth is driven by cells that move and change like a conveyor belt.
21 citations
,
November 2010 in “Journal of molecular medicine” FoxN1 gene is essential for proper thymus structure and preventing hair loss.
April 2010 in “The journal of immunology/The Journal of immunology” FoxN1 gene is crucial for proper thymus structure and normal skin appearance.
49 citations
,
March 2004 in “Journal of Investigative Dermatology” The hHa7 gene is regulated by androgens in certain body hair, not scalp hair.
34 citations
,
October 1982 in “Journal of applied polymer science” Moisture content significantly affects how human hair breaks.
17 citations
,
June 2012 in “Journal of experimental zoology. Part B, Molecular and developmental evolution” Hair in mammals likely evolved from glandular structures, not scales.
18 citations
,
November 2010 in “Journal of morphology” Antler velvet hair and body hair of red deer have different structures that help with protection and insulation.
October 2024 in “BMC Genomics” Understanding hair follicle development can help improve cashmere quality.
25 citations
,
March 2002 in “Scanning” Confocal microscopy is better than scanning electron microscopy for studying hair in its natural state and understanding hair products' effects.
11 citations
,
January 2012 in “Journal of cell science” Rac1 is essential for proper hair structure and color.
15 citations
,
February 1999 in “The anatomical record” Some mutant mice have hair with abnormal cross-linking, mainly in the cuticle, not affecting other hair parts.
2 citations
,
May 2012 in “Acta pharmaceutica sinica B” The study found unique microscopic features for hair or feather in five animal ingredients in Shenrongbian pill.
2 citations
,
January 2001 in “Biomedical Research” Trichohyalin and peptidylarginine deiminase type III are found together in rat hair follicles, with trichohyalin being modified after expression.
April 2012 in “Development” Rac1 is crucial for normal hair structure and pigmentation.
16 citations
,
October 1992 in “Journal of cutaneous pathology” Bubble hair deformity may be caused by hair shaft trauma and can improve with gentle hair care.
109 citations
,
June 2000 in “Development” Notch pathway activation causes abnormal hair layer development.
9 citations
,
February 2016 in “Anatomical Science International” Hair proteins change location and structure as hair cells mature.
9 citations
,
July 2014 in “PubMed” Different S100 proteins have specific roles in various parts of the hair follicle.
6 citations
,
November 1984 in “Acta Dermato Venereologica” Hair follicles and sweat glands show different keratin staining patterns.
1 citations
,
January 2023 in “Indian Journal of Animal Research” A new method effectively stains hair samples for study without losing hair sections.
February 2023 in “Mağallaẗ Tikrīt li-l-ʻulūm al-ṣirfaẗ/Tikrit journal of pure science” Horse skin has a layered epidermis, a dermis with hair follicles, sweat and sebaceous glands, and is supplied by small arteries.
July 2016 in “Indian journal of science and technology” Neonate scalp hair is thinner, lacks a medulla, and has smaller follicles compared to adult hair.