137 citations,
April 2015 in “Nature Reviews Molecular Cell Biology” Different types of stem cells with unique roles exist in blood, skin, and intestines, and this variety is important for tissue repair.
129 citations,
May 2015 in “Cell Stem Cell” Different types of stem cells exist within individual skin layers, and they can adapt to damage, transplantation, or tumor growth. These cells are regulated by their environment and genetic factors. Tumor growth is driven by expanding, genetically altered cells, not long-lived mutant stem cells. There's evidence of cancer stem cells in skin tumors. Other cells, bacteria, and genetic factors help maintain balance and contribute to disease progression. A method for growing mini organs from single cells has been developed.
127 citations,
December 2007 in “Journal of Investigative Dermatology” Mice hair growth patterns get more complex with age and can change with events like pregnancy or injury.
127 citations,
December 2005 in “Experimental Dermatology” Stress can stop hair growth in mice, and treatments can reverse this effect.
126 citations,
January 2009 in “International Journal of Trichology” Oxidative stress contributes to hair graying and loss as we age.
113 citations,
June 2015 in “Stem Cell Research & Therapy” Wnt and Notch signaling help wound healing by promoting cell growth and regulating cell differentiation.
111 citations,
June 2002 in “The EMBO Journal” Too much Smad7 can cause serious changes in skin tissues, including problems with hair growth, thymus shrinkage, and eye development issues.
109 citations,
September 2011 in “Human molecular genetics online/Human molecular genetics” New treatments targeting specific genes show promise for treating keratin disorders.
86 citations,
March 2018 in “ACS Biomaterials Science & Engineering” MDP hydrogel heals wounds faster and better than other treatments in diabetic mice.
82 citations,
February 2017 in “Cold Spring Harbor Perspectives in Biology” The TGF-β family helps control how cells change and move, affecting skin, hair, and organ development.
73 citations,
July 1956 in “Journal of Investigative Dermatology” Adult human skin can grow new fine hair follicles after a deep exfoliation treatment.
67 citations,
August 2007 in “American Journal of Pathology” Overexpressing the mineralocorticoid receptor in mouse skin causes skin thinning, early skin barrier development, eye issues, and hair loss.
67 citations,
July 1985 in “British journal of dermatology/British journal of dermatology, Supplement” Men's thigh hair grows longer and has a longer growth cycle than women's, but arm hair growth is similar between genders.
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.
57 citations,
June 2003 in “American Journal of Physiology-cell Physiology” Cyclosporin A helps mice grow hair by blocking a specific protein activity in skin cells.
55 citations,
March 2012 in “Journal of Investigative Dermatology” Research on epidermal stem cells has advanced significantly, showing promise for improved clinical therapies.
54 citations,
January 2016 in “Cell reports” Activating β-catenin in different skin stem cells causes various types of hair growth and skin tumors.
53 citations,
January 2006 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” Reduced AR gene methylation may cause early pubic hair growth in girls.
51 citations,
January 2004 in “Skin Pharmacology and Physiology” The document explains hair growth and shedding, factors affecting it, and methods to evaluate hair loss, emphasizing the importance of skin biopsy for diagnosis.
47 citations,
May 1999 in “Reproduction” Goat reproductive activity and coat growth are affected by light and temperature, with temperature altering prolactin levels and hair growth, but not melatonin or estrus onset.
46 citations,
January 1996 in “Journal of The American Academy of Dermatology” People with late-stage HIV-1 often experience a specific type of hair loss linked to multiple factors, including nutritional issues and immune responses.
42 citations,
February 1985 in “Journal of the American Academy of Dermatology” Excessive hair growth can be assessed by history, exam, and blood tests, and treated with medication like dexamethasone, birth control pills, and spironolactone.
40 citations,
February 1990 in “Journal of The American Academy of Dermatology” A 17-year-old developed woolly hair nevus in adolescence, which is unusual, and over time the hair darkened and straightened slightly, but microscopic changes persisted.
37 citations,
January 2009 in “Dermatology” Healthy women tend to lose more hair in July and April, and the least in February.
37 citations,
November 2003 in “Veterinary pathology” Hair loss in mice starts with immune cells damaging hair roots before it becomes visible.
31 citations,
April 2010 in “British journal of dermatology/British journal of dermatology, Supplement” Frontal fibrosing alopecia can cause sudden hair loss on limbs, similar to scalp hair loss.
30 citations,
February 2010 in “The journal of investigative dermatology/Journal of investigative dermatology” Plet-1 protein helps hair follicle cells move and stick to tissues.
30 citations,
December 2001 in “Experimental dermatology” Gonadal hormones significantly affect the severity of alopecia areata in mice.
29 citations,
June 2005 in “Journal of Zoo and Wildlife Medicine” Most hair loss in captive rhesus macaques is likely due to environmental and behavioral factors.
28 citations,
January 2013 in “Stem cells” Certain human skin cells marked by CD44 and ALDH are rich in stem cells capable of long-term skin renewal.