January 2001 in “Biomedical Research” THH and PAD type III appear together early in hair growth, but deiminated THH appears later, suggesting another factor is involved.
34 citations
,
June 2008 in “In vitro cellular & developmental biology. Animal” Scientists created a long-lasting stem cell line from human hair that can turn into different skin and hair cell types.
30 citations
,
February 1977 in “Nature” The dermal papilla can still grow new hair even after heavy radiation.
August 2021 in “Pharmacy Today” The document's conclusion about hair loss cannot be determined.
12 citations
,
June 2006 in “Anais Brasileiros de Dermatologia” The study found average numbers for different types of hair follicles in the scalp and observed differences between men and women, suggesting reasons for more common hair shedding in women.
April 2019 in “Progress in Crystal Growth and Characterization of Materials” Hair grows like a crystal at a solid-liquid interface without cell division.
November 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” The study found markers indicating that cells responsible for hair color are differentiating in specific areas of the hair follicle.
2 citations
,
February 2025 in “Journal of Investigative Dermatology”
1 citations
,
September 2019 in “Journal of Investigative Dermatology” Human hair matrix cells and dermal papilla fibroblasts can form early hair follicle structures but don't produce hair shafts yet.
65 citations
,
February 1992 in “Development” Type II keratin genes are crucial for hair follicle differentiation and have a conserved structure and expression pattern.
March 1995 in “The Journal of Dermatology” Immature hair cells can grow and change into different types of hair cells over time.
February 2023 in “Cosmoderma” An infant with complete hair loss was diagnosed with a genetic disorder affecting hair growth.
October 2018 in “Deep Blue (University of Michigan)” Hair follicle development involves specific cells and genes, crucial for understanding severe skin diseases like harlequin ichthyosis.
October 2019 in “Innovative Journal of Medical and Health Science” Certain herbs may help treat hair loss by extending hair growth phases.
6 citations
,
August 2008 in “Journal of Forensic Sciences” Recognizing specific tissue types on telogen hair roots can improve DNA typing.
14 citations
,
January 1988
August 2012 in “Nature Cell Biology” Hair grows when stem cell offspring in the follicle base proliferate, influenced by the dermal papilla.
19 citations
,
July 1964 in “PubMed” Hair follicle cells become four types: medulla, cortex, cuticle, and inner root sheath.
6 citations
,
July 2017 in “Biochemical and Biophysical Research Communications” The Hairless gene is crucial for hair cell development, affecting whether skin cells become hair or skin and oil gland cells.
12 citations
,
November 2014 in “PLOS Computational Biology” The study concluded that hair growth in mice is regulated by a stable interaction between skin cell types, and disrupting this can cause hair loss.
December 2025 in “Brazilian Journal of Hair Health” The Spiral Model helps understand hair growth changes with age and identify hair problems early.
January 2014 in “Journal of the Korean Society of Design Culture” The study confirmed that changes in hair structure in women with hair loss conditions matched what is taught in beauty college trichology courses.
August 2018 in “Pediatric Dermatology” A baby had a unique skin condition with a pale patch and surrounding dark hairs, not linked to other health issues.
November 2025 in “Clinical Cosmetic and Investigational Dermatology” Digital microscopy can help diagnose hirsutism by measuring hair growth.
109 citations
,
December 1998 in “The Journal of Dermatology” Manipulating the catagen and telogen phases of hair growth could lead to treatments for hair disorders.
18 citations
,
April 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” Skin patterns are formed by simple reaction-diffusion mechanisms.
September 2017 in “Journal of Investigative Dermatology” The research concluded that hyaluronic acid affects the formation and growth of hair follicle-like structures in a lab setting.
51 citations
,
March 1990 in “Journal of Investigative Dermatology” 9 citations
,
February 2001 in “Journal of Dermatological Science” p21waf1/cip1 and p27kip1 help in hair follicle differentiation in rats.
1 citations
,
March 2014 in “Journal of Innovative Optical Health Sciences” Hair structure worsens as tumors grow in mice.