128 citations
,
March 2006 in “American Journal of Pathology” Prolactin contributes to hair loss by promoting hair follicle shrinkage and cell death.
55 citations
,
February 2014 in “Journal of Structural Biology” Human hair has a complex, variable structure with a consistent matrix and double-twist pattern.
33 citations
,
November 2007 in “JAT. Journal of applied toxicology/Journal of applied toxicology” Human scalp hair on mice can effectively monitor mercury exposure.
21 citations
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June 2023 in “Proceedings of the National Academy of Sciences” Tightly curled scalp hair helps reduce heat from the sun, protecting against overheating.
13 citations
,
May 2022 in “Cell discovery” The study found new details about human hair growth and suggests that preventing a specific biological pathway could potentially treat hair graying.
11 citations
,
June 1979 in “British Journal of Dermatology” The enzyme system in hair follicles is similar to the liver's and is affected by certain inhibitors.
7 citations
,
April 2022 in “Journal of pharmaceutical and biomedical analysis” The method can measure multiple steroids in human hair to study long-term steroid metabolism, especially in newborns and children.
3 citations
,
February 2019 in “Journal of Cosmetic Dermatology” The effects of estrogen on human scalp hair growth are unclear and need more research.
3 citations
,
January 1998 in “ACTA HISTOCHEMICA ET CYTOCHEMICA” Hair keratins are mainly on macrofibrils in the cortex and in the endocuticle in the cuticle.
July 2024 in “Journal of Investigative Dermatology” Taxane chemotherapy can cause permanent hair loss by damaging hair follicles and altering their DNA.
April 2023 in “Journal of Investigative Dermatology” Staphylococcus epidermidis affects hair growth and metabolism, suggesting it could help manage hair growth issues.
November 2022 in “Journal of Investigative Dermatology” Growth hormone-releasing hormone (GHRH) boosts hair growth and human scalp hair follicles have their own growth hormone system.
January 2016 in “Belarusian State Pedagogical University repository (Belarusian State Pedagogical University)” A 6-group geometric classification of human scalp hair is more reliable and objective for testing than an 8-group system.
Human scalp hair follicles have PGE2 and its receptors, which might affect hair growth.
Low doses of certain Chinese herbs can promote hair growth, while high doses may inhibit it.
4 citations
,
September 2012 in “Journal of dermatological science” The hair follicle's connective tissue is a key source of a certain collagen in human scalp skin.
February 2017 in “Spectrum Research Repository (Concordia University)” Porcine PRP can replace FBS and promote hair growth.
April 2026 in “Microorganisms” SCFF may help promote hair growth and scalp health.
January 1994 in “Skin research” EGF and TGF-α help maintain hair cell cultures, but TGF-β1 stops their growth.
November 2024 in “Journal of Microscopy” Human hair varies in structure based on curl type, with high curl hair showing the most differences.
Applying thyroid hormones to the scalp can help hair grow.
60 citations
,
February 1992 in “British Journal of Dermatology” Serum from alopecia patients does not stop hair growth in grafted skin on mice.
8 citations
,
September 1993 in “British journal of dermatology/British journal of dermatology, Supplement” A new method helps isolate key hair components to study hair growth and loss.
2 citations
,
July 1994 in “Journal of Dermatological Science” Grafted human scalp samples on mice can produce human hair, useful for studying hair genetics.
February 2010 in “Journal of the American Academy of Dermatology” Activating cAMP and ATP improves hair growth and strength.
7 citations
,
December 2016 in “Journal of The Taiwan Institute of Chemical Engineers” Pig blood plasma can be used to promote human hair growth and is a good alternative to the commonly used serum additive.
8 citations
,
November 2020 in “Frontiers in Cell and Developmental Biology” Certain genes are more active in baby scalp cells and can help grow hair when added to adult mouse skin cells.
January 2025 in “British Journal of Dermatology” Long scalp hair evolved for cooling and social signaling.
November 2024 in “Journal of Investigative Dermatology” γδT cells can protect hair follicles from alopecia areata and promote hair regrowth.
August 2023 in “International Journal of Molecular Sciences” The human scalp hair bulb contains different types of melanocytes with varying abilities to produce melanin.