174 citations
,
April 2005 in “The American journal of pathology (Print)” Capsaicin, found in chili peppers, can slow down hair growth by affecting skin cells and hair follicles.
170 citations
,
July 2012 in “Journal of Investigative Dermatology” Wnt ligands are crucial for hair growth and repair.
168 citations
,
August 2000 in “American Journal of Pathology” Fibromodulin might help reduce scarring if increased in adult wounds like in fetal skin that heals without scars.
160 citations
,
April 2012 in “Journal of Cellular and Molecular Medicine” Telocytes might help with skin repair and regeneration.
159 citations
,
December 2007 in “American Journal of Pathology” Stress-related substance P may lead to hair loss and negatively affect hair growth.
141 citations
,
January 1984 in “Journal of The American Academy of Dermatology” Pregnancy can cause skin darkening, varicose veins, more sweating, hair growth, hair loss after birth, nail changes, and gum inflammation.
134 citations
,
December 2018 in “Dermatology and Therapy” Some vitamins and minerals like vitamin D and iron can help with certain types of hair loss, but more research is needed for others.
131 citations
,
August 2004 in “Best Practice & Research in Clinical Obstetrics & Gynaecology” The conclusion is that PCOS is caused by ovarian sensitivity to hormones and disrupted hormone control, possibly due to ovarian factors, and more research is needed.
130 citations
,
June 2003 in “Journal of Investigative Dermatology Symposium Proceedings” Estrogen Receptor ß (ERß) is the main hormone controller in human skin and hair follicles, not Estrogen Receptor α (ERα) or the Androgen Receptor (AR).
127 citations
,
December 2005 in “Experimental Dermatology” Stress can stop hair growth in mice, and treatments can reverse this effect.
123 citations
,
December 2015 in “Journal of Neuroendocrinology” New targets for making and using brain-synthesized steroids could lead to better treatments for brain disorders and alcoholism.
123 citations
,
May 2009 in “Journal of Neuroscience” In late pregnancy, allopregnanolone reduces stress responses in rats by affecting brain chemicals.
115 citations
,
November 2004 in “Brain Behavior and Immunity” Stress increases nerve fibers and immune cell activity in mouse skin, possibly worsening skin conditions.
115 citations
,
October 2003 in “Journal of Neuroscience” Aβ afferents do not sprout into the superficial spinal cord layers after nerve injury.
113 citations
,
June 2015 in “Stem Cell Research & Therapy” Wnt and Notch signaling help wound healing by promoting cell growth and regulating cell differentiation.
109 citations
,
July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair color production is closely linked to the active growth phase of hair in mice and may also influence hair growth itself.
101 citations
,
January 1997 in “Journal of Investigative Dermatology Symposium Proceedings” Nerves and chemicals in the body can affect hair growth and loss.
96 citations
,
January 1997 in “Clinics in Dermatology” Pregnancy can cause skin pigmentation, stretch marks, and changes in hair, nails, and sweat glands, with most resolving after birth.
91 citations
,
March 2011 in “Stem Cell Reviews and Reports” Human epidermal neural crest stem cells can become bone and skin pigment cells, making them useful for therapies.
90 citations
,
August 2002 in “European journal of endocrinology” Metformin improves hair growth and menstrual frequency in women with PCOS and hirsutism.
85 citations
,
May 2019 in “Journal of neuroendocrinology” The article concludes that better understanding gene regulation related to seasonal changes can offer insights into the mechanisms of seasonal timing in mammals.
84 citations
,
July 2003 in “European journal of biochemistry” Mouse skin can produce and process serotonin, with variations depending on hair cycle, body location, and mouse strain.
82 citations
,
April 1981 in “Clinical endocrinology” A girl with rickets and hair loss was found to have a rare condition where her body didn't respond to vitamin D treatment.
81 citations
,
October 2014 in “The journal of investigative dermatology/Journal of investigative dermatology” Certain genes control the color of human hair by affecting pigment production.
81 citations
,
December 2009 in “Journal of Dermatological Science” Fat tissue stem cells may help increase hair growth.
81 citations
,
January 2003 in “The FASEB Journal” Follistatin helps hair growth and cycling, while activin prevents it.
76 citations
,
April 2013 in “PLoS ONE” Chronic stress can cause hair loss by increasing oxidative stress, but antioxidants may help.
76 citations
,
January 2007 in “American Journal of Clinical Dermatology” Women with PCOS often have skin problems like excessive hair, acne, hair loss, and dark patches, which can be treated with hormonal and non-hormonal therapies.
76 citations
,
March 2005 in “Journal of Molecular Medicine” Certain mice without specific receptors or mast cells don't lose hair from stress.
72 citations
,
January 2003 in “American Journal of Pathology” A protein called CBP is found in prostate cancer and can increase the effectiveness of certain prostate cancer treatments.