research Segmental hair analysis as a retrospective testosterone diary: possibilities and pitfalls
Segmental hair analysis can track testosterone over time but needs adjustments for sex, hair color, and washing frequency.
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research Geometric classification of scalp hair for valid drug testing, 6 more reliable than 8 hair curl groups
A 6-group hair classification is more reliable for drug testing than an 8-group system.
research Testosterone-like immunoreactivity in hair measured in minute sample amounts - a competitive radioimmunoassay with an adequate limit of detection
The new test can measure very small amounts of testosterone in hair, and grinding the hair up first gives more accurate results.
research Biology of the Hair Follicle: The Basics
The document concludes that understanding hair follicle biology can lead to better hair loss treatments.
research Human hair follicle organ culture: theory, application and perspectives
Human hair follicle organ culture is a useful model for hair research with potential for studying hair biology and testing treatments.
research Autophagy is essential for maintaining the growth of a human (mini-)organ: Evidence from scalp hair follicle organ culture
Autophagy is important for human hair growth and health.
research Effect of cosmetic hair treatment and natural hair colour on hair testosterone concentrations
Cosmetic hair treatments can increase hair testosterone levels, while natural hair color does not affect it.
research Metabolomic and lipidomic atlas of human hair across its length
Human hair contains many different molecules that change along its length, influenced by personal care products.
research Hair follicles and their role in skin health
Hair follicles are essential for skin health, aiding in hair growth, wound healing, and immune function.
research Improved forensic hair evidence for drugs of abuse by mass spectrometry
Forensic hair analysis for drugs is now more reliable and accurate.
research Pathobiology of chemotherapy-induced hair loss
Chemotherapy causes hair loss by damaging hair follicles and stem cells, with more research needed for prevention and treatment.
research The Hair Follicle as an Estrogen Target and Source
Estrogens significantly influence hair growth by interacting with receptors in hair follicles and may help regulate the hair growth cycle.
research Indications for a brain‐hair follicle axis: inhibition of keratinocyte proliferation and up‐regulation of keratinocyte apoptosis in telogen hair follicles by stress and substance P
Stress can cause hair loss by negatively affecting hair follicles and this effect might be reversed with specific treatments.
research Thyrotropin releasing hormone (TRH): a new player in human hair‐growth control
TRH stimulates human hair growth and extends the hair growth phase.
research The Effect of Parathyroid Hormones on Hair Follicle Physiology: Implications for Treatment of Chemotherapy-Induced Alopecia
Parathyroid hormones are important for hair growth, but their use in treating hair loss from chemotherapy is still uncertain.
research Basic hair transplantation: 2007
Hair transplantation has improved with techniques that increase graft survival and patient satisfaction for more natural results.
research Neuroendocrinology of the hair follicle: principles and clinical perspectives
Hair follicles are hormone-sensitive and involved in growth and other functions, with potential for new treatments, but more research is needed.
research A neuroendocrinological perspective on human hair follicle pigmentation
Brain hormones significantly affect hair color and could potentially be used to prevent or reverse grey hair.
research Profiling the Response of Human Hair Follicles to Ultraviolet Radiation
UVB radiation harms hair growth and health, causing cell death and other changes in human hair follicles.
research Hair follicles, their disorders and their opportunities
Hair follicles offer promising targets for delivering drugs to treat hair and skin conditions.
research Exploring the “brain-skin connection”: Leads and lessons from the hair follicle
Hair follicles on the scalp interact with and respond to the nervous system, influencing their own behavior and growth.
research Non-invasive evaluation of advanced glycation end products in hair as early markers of diabetes and aging
Hair analysis can effectively detect diabetes and aging markers.
research Probing the Effects of Stress Mediators on the Human Hair Follicle
Stress-related substance P may lead to hair loss and negatively affect hair growth.
research Towards Best Practice in Hair Metabolomic Studies: Systematic Investigation on the Impact of Hair Length and Color
Hair color and length affect metabolite profiles in hair, so they should be considered in hair analysis.
research Neurogenic Inflammation in Stress-Induced Termination of Murine Hair Growth Is Promoted by Nerve Growth Factor
Stress increases a factor in mice that leads to hair loss, and blocking this factor may prevent it.
research Female Adolescent Hair Disorders
Quick treatment of hair disorders in teenage girls is important because of the emotional effects.
research Female Pattern Hair Loss
Over 50% of women over 50 experience hair loss, with minoxidil being the only proven effective treatment.
research Expression and functional relevance of melatonin receptors in hair follicle biology
Melatonin receptors in hair follicles help regulate hair growth and could treat hair loss.
research Managing the PCOS-Related Symptoms of Hirsutism, Acne, and Hair Loss
Birth control pills and anti-androgen medications help manage hair growth, acne, and hair loss in women with PCOS.
research Hair Disorders
The document concludes that accurate diagnosis and appropriate management are crucial for treating various hair disorders, which have significant psychological impacts.