103 citations
,
January 2006 in “Journal of Cell Science” The document concludes that the hair cycle is a complex process involving growth, regression, and rest phases, regulated by various molecular signals.
100 citations
,
November 1996 in “Molecular Medicine Today” Growth factors and cytokines are important for hair growth and could potentially treat hair loss, but more research is needed to overcome challenges before they can be used in treatments.
99 citations
,
July 2012 in “PLoS Genetics” A mutation in the KRT75 gene causes frizzle feathers in chickens.
97 citations
,
September 2011 in “British Journal of Dermatology” The human hair follicle can store topical compounds and be targeted for drug delivery with minimal side effects.
90 citations
,
June 2006 in “The American Journal of Dermatopathology” The document concludes that accurate diagnosis of different types of hair loss requires careful examination of hair and scalp tissue, considering both clinical and microscopic features.
90 citations
,
January 1979 in “International review of cytology” Wool follicles are complex, involving interactions between different cell types and structures.
88 citations
,
January 2013 in “Indian Journal of Dermatology, Venereology and Leprology” Minoxidil and finasteride effectively treat hair loss.
87 citations
,
July 2009 in “The journal of investigative dermatology/Journal of investigative dermatology” Human beard hair medulla contains a unique and complex mix of keratins not found in other human tissues.
85 citations
,
October 2006 in “Current opinion in cell biology” Feather growth and regeneration involve complex patterns, stem cells, and evolutionary insights.
84 citations
,
October 2014 in “PLoS Genetics” Wnt signaling is essential for forming the skin's spinous layer through a BMP-FGF pathway.
84 citations
,
January 2008 in “Cold Spring Harbor Symposia on Quantitative Biology” Skin stem cells help maintain skin health, grow hair, and heal wounds.
83 citations
,
May 2013 in “International Journal of Molecular Sciences” Skin development in mammals is controlled by key proteins and signals from underlying cells, involving stem cells for maintenance and repair.
82 citations
,
March 2016 in “Cell” The conclusion is that tissue structure is key for stem cell communication and maintaining healthy tissues.
76 citations
,
July 2019 in “Cellular and Molecular Life Sciences” Stem cells are crucial for tissue growth, cancer treatment, and disease modeling, but challenges remain in clinical use.
75 citations
,
May 1986 in “Clinics in endocrinology and metabolism” Male hormones are important for hair and oil gland development and can cause conditions like excessive hair growth and acne.
74 citations
,
January 2013 in “Expert Opinion on Biological Therapy” The conclusion is that hair growth can be improved by activating hair cycles, changing the surrounding environment, healing wounds to create new hair follicles, and using stem cell technology.
74 citations
,
May 2004 in “Journal of Clinical Hypertension” Minoxidil effectively treats severe hypertension, but watch for side effects.
72 citations
,
July 2012 in “Journal of Investigative Dermatology” Mice lacking a key DNA methylation enzyme in skin cells have a lower chance of activating stem cells necessary for hair growth, leading to progressive hair loss.
72 citations
,
July 2003 in “Journal of cosmetic dermatology” Frequent hair coloring and styling can damage hair and cause breakage or loss.
72 citations
,
January 2001 in “Drugs” Minoxidil and finasteride treat hair loss; more research needed for other options.
70 citations
,
March 2016 in “Urologic Clinics of North America” The document explains how the male reproductive system works, its role in making testosterone, and how conditions like obesity can disrupt it, leading to low testosterone and fertility issues.
70 citations
,
January 2014 in “International review of cell and molecular biology” Keratin proteins are crucial for healthy skin, but mutations can cause skin disorders with no effective treatments yet.
69 citations
,
August 1999 in “Developmental biology” The nude gene causes skin cell overgrowth and improper development, leading to hair and urinary issues.
68 citations
,
December 1991 in “Annals of the New York Academy of Sciences” Hair growth can be induced by certain cells found at the base of hair follicles, and these cells may also influence hair development and regeneration.
67 citations
,
November 2019 in “Nature Communications” Oncogenic melanocyte stem cells can develop into melanoma similar to human cases.
67 citations
,
January 2012 in “Biological and Pharmaceutical Bulletin” Nanoparticles don't penetrate intact skin but can enter through pores or damaged skin.
66 citations
,
March 2019 in “Cellular and Molecular Life Sciences” Melanocyte development from neural crest cells is complex and influenced by many factors, and better understanding could help treat skin disorders.
65 citations
,
July 2006 in “Journal of biological chemistry/The Journal of biological chemistry” The gene Foxq1, controlled by Hoxc13, is crucial for hair follicle differentiation.
62 citations
,
January 2000 in “Developmental dynamics” Notch-related genes play a key role in the development and cycling of hair follicles.
61 citations
,
April 2012 in “British Journal of Dermatology” Caucasian women's hair appears thickest in their 20s, with perceived thinning after mid-30s due to both decreasing density and diameter.