161 citations,
August 2012 in “Seminars in cell & developmental biology” Hair growth and development are controlled by specific signaling pathways.
65 citations,
September 2014 in “BMC genomics” Different hair types in mammals are linked to variations in specific protein genes, with changes influenced by their living environments.
20 citations,
August 2022 in “Frontiers in Immunology” Fibroblasts are important in healing diabetic wounds, but high sugar levels can harm their function and slow down the healing process.
4 citations,
January 2019 in “Micron” Fetal hair follicles have melanocytes with melanosomes at different stages, which are broken down into pigment particles in keratinocytes.
Hair fibers degrade and change color in very basic water.
17 citations,
July 2014 in “Journal of Ultrasound in Medicine” Abnormal cuticle and hair shaft medulla cause hair loss in androgenetic alopecia; sonography helps diagnose and manage it.
15 citations,
August 2020 in “Analytical chemistry” Hair lipids do not protect against humidity.
January 2019 in “Springer eBooks” Some chemicals and drugs can cause hair loss, which usually grows back after stopping the treatment.
January 2012 in “Journal of Natural Remedies” The Abrus precatorius extract can effectively promote hair growth similar to standard treatments.
9 citations,
July 2018 in “Acta biomaterialia” Eyelash curvature is linked to the thickness of the cuticle layer at the root.
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.
4 citations,
January 2018 in “Elsevier eBooks” Hormones are crucial for regulating body functions and imbalances can lead to health issues.
2 citations,
January 2018 in “Springer eBooks” The document explains what healthy skin, nails, and hair look like on an ultrasound.
1 citations,
March 2011 in “Infertility” Hormone imbalances from the pituitary, thyroid, and adrenal glands can cause infertility, but treating these disorders can improve fertility.
10 citations,
May 2020 in “Frontiers in cell and developmental biology” MicroRNAs are important for hair growth regulation, with Dicer being crucial and Tarbp2 less significant.
7 citations,
November 2006 in “Journal of immunological methods” The method can help diagnose and monitor diabetes by analyzing hair.
February 2022 in “Actas dermo-sifiliográficas/Actas dermo-sifiliográficas” Hair shaft disorders, often due to genetics or environment, lack specific treatments but can be managed with gentle hair care and may improve with age or topical treatments.
April 2024 in “Histochemistry and cell biology” N-acetylcysteine may prevent hair loss caused by chemotherapy.
November 2024 in “Journal of Functional Foods” AP collagen peptides improve hair elasticity and gloss.
6 citations,
January 2016 in “International journal of trichology” Children's hair is more elastic, but tensile strength is similar across different factors.
25 citations,
December 1973 in “Biochemical Journal” This study focused on characterizing the proteins in guinea-pig hair and hair-follicle tissue to understand protein synthesis in hair follicles. Five groups of reduced carboxymethylated proteins were identified, with group 1B proteins being unique to the follicle, likely originating from the medulla and inner-root-sheath layers. Most hair and follicle proteins shared similar properties, but quantitative differences were observed: follicle extracts had more group 2 proteins and fewer group 3 and 4 proteins compared to hair extracts. Additionally, follicle group 4 proteins had more low molecular weight proteins and fewer high molecular weight proteins than hair group 4 proteins. These differences were analyzed in the context of keratin protein synthesis, with group 1B proteins potentially being precursors to mature medulla and inner root sheath proteins.
8 citations,
July 2004 in “Journal of morphology” Marsupial hair structure and keratin distribution are similar to placental mammals.
2 citations,
March 2019 in “Journal of Histochemistry and Cytochemistry” Neuronatin is found in specific cells within rat testis, hair follicles, tongue, and pancreas, suggesting it has various roles in tissue development and function.
32 citations,
February 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” Two specific hair keratin genes are active during hair growth and decline as hair transitions to rest.
25 citations,
May 1994 in “Journal of Investigative Dermatology” Researchers found a new gene, hacl-1, that is active in mouse hair follicles during hair growth and may be important for hair biology.
72 citations,
February 2011 in “American Journal of Biological Anthropology” The conclusion is that recognizing hair growth cycles can improve the precision of dietary and health assessments from hair analysis.
23 citations,
October 1988 in “Clinics in Dermatology” Minoxidil was first made for high blood pressure, but it was later found to help hair growth.
22 citations,
August 2020 in “Cells” TGM3 is important for skin and hair structure and may help diagnose cancer.
19 citations,
July 1964 in “PubMed” Hair follicle cells become four types: medulla, cortex, cuticle, and inner root sheath.
18 citations,
August 2014 in “Lipids” Human hair has more unsaturated fats inside than on the surface, and certain lipids may help bind the outer and inner layers together.