2 citations,
February 2023 in “International journal of molecular sciences” Body hairs can be used in forensic science and toxicology like scalp hair.
October 2021 in “QJM: An International Journal of Medicine” Changes in NRF2 levels may contribute to hair loss in Egyptian men.
13 citations,
January 2002 in “Biochemical and biophysical research communications” Interferon β from hair cells stops the growth of other hair cells.
27 citations,
January 1995 Melanin in black hair protects it from sun damage better than light-brown hair.
2 citations,
January 2020 in “Clinical and experimental obstetrics & gynecology” Hair levels of estradiol and progesterone are higher in premenopausal than postmenopausal women, but the difference isn't statistically significant, indicating the need for a better measurement method.
100 citations,
December 2002 in “Journal of biological chemistry/The Journal of biological chemistry” Researchers mapped and categorized specific keratin-associated protein genes on human chromosome 21q22.1.
Different thymic peptides affect hair growth in various ways.
115 citations,
September 2012 in “Experimental Dermatology” Androgens have complex effects on hair growth, promoting it in some areas but causing hair loss in others, and our understanding of this is still evolving.
18 citations,
August 2011 in “Medical Hypotheses” Physical inactivity is a primary cause of many human illnesses.
2 citations,
October 2023 in “Science advances” Touching hair can activate nearby nerve cells through signals from the hair's outer layer.
6 citations,
May 2020 in “Molecules/Molecules online/Molecules annual” Yak belly hair has higher porosity and is less stiff than human hair, making it absorb dye better but less suitable as a direct substitute for hair dyeing.
42 citations,
March 2010 in “Endocrinology” Mice with human gene experienced hair loss when treated with DHT.
13 citations,
December 1991 in “Annals of the New York Academy of Sciences” Researchers created a lab model to study human hair growth, showing it can grow and self-regulate outside the body.
47 citations,
July 1967 in “Science” Not eating enough protein can cause hair roots to shrink and lose color, and hair to become thinner.
1 citations,
January 2010 in “Acta Chirurgica Latviensis” Inflammation in psoriasis may trigger antimicrobial peptides and cell death.
136 citations,
March 1996 in “Journal of the American Chemical Society” Finasteride effectively blocks enzyme causing male pattern baldness.
15 citations,
October 2004 in “Colloids and surfaces. B, Biointerfaces” Holes in mature hair are likely caused by the removal of substances during hair care.
8 citations,
January 2014 in “PubMed” Researchers made stem cells from human hair follicle cells with better efficiency than from skin cells.
12 citations,
January 2014 in “Cell structure and function” Different combinations of human hair keratins affect how hair fibers form.
25 citations,
February 2007 in “Forensic science international” Different hair cleaning methods caused varying levels of damage to the hair's outer layer.
28 citations,
September 1998 in “Journal of Investigative Dermatology” Two distinct caspases in human skin help with cell death and skin formation.
September 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” Higher SPF sunscreens provide more DNA protection, and the form of sunscreen doesn't affect protection level.
6 citations,
November 1993 in “European journal of clinical pharmacology” Minoxidil is processed in the body by an enzyme found in the liver and platelets.
28 citations,
August 2006 in “The journal of investigative dermatology/Journal of investigative dermatology” Survivin protein is crucial for hair growth and preventing cell death in hair follicles.
9 citations,
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February 2019 in “American Journal of Human Biology” Collecting hair from all scalp sections works as well as the standard method for cortisol analysis.
August 2024 in “Advanced Healthcare Materials” RK81 can help promote hair growth.
1 citations,
May 2011 in “Journal of Human Reproductive Sciences” Finasteride may decrease semen quality but not harm sperm production, and stopping the drug can improve semen quality; hyperprolactinemia can cause infertility but is treatable with medication.
3 citations,
April 1990 in “Archives of dermatology” The book reveals diverse patterns of hair growth in different species and advancements in hair and alopecia research.
27 citations,
January 1990 in “Child Psychiatry & Human Development” The document concludes that supportive home environments and addressing parent-child interactions can effectively treat trichotillomania in children.