research Timing of puberty in relation to semen characteristics, testicular volume, and reproductive hormones: a cohort study
Men who went through puberty later had lower sperm counts and altered hormone levels, possibly affecting fertility.
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research Melanin Light Absorption as the Necessary but Not Sufficient Condition for Photoepilation: Miniaturization and Eclipse Phenomena
Melanin absorbing light is necessary but not enough for effective hair removal by light treatment.
research Dark brown hair regrowth in a red-haired woman with alopecia areata
Baricitinib treatment led to dark brown hair regrowth in a red-haired woman with alopecia areata.
research Distinct mutations in human basic hair keratins 1 and 6 cause monilethrix: Implications for protein structure and clinical phenotype
research Characterisation of cell cycle arrest and terminal differentiation in a maximally proliferative human epithelial tissue: Lessons from the human hair follicle matrix
CIP/KIP proteins help stop cell division and support hair growth.
research The Graying Phenomenon An Unusual Manifestation of Alopecia Areata
A 31-year-old man's hair turned white suddenly, likely due to alopecia areata.
research Catagen in the hairless house mouse
Hairless mice have longer hair follicles and abnormal structures during the catagen phase.
research The Predictive Value of Midscalp Hair Density and Terminal Hair Percentage in the Severity Evaluation of FPHL Assessed by Trichoscan in a Sample of Chinese Population
Midscalp hair density and terminal hair percentage are good indicators of female pattern hair loss severity.
research Analysis of DNA in hair fibers.
Small amounts of DNA can be found in the hair shaft, especially near the root, but it decreases with hair treatments and washing.
research THE ENDOCRINE SYSTEM AND HAIR GROWTH IN THE RAT
Male rats grow hair faster than females, and certain hormones can slow or slightly increase hair growth, but not significantly beyond natural rates.
research Scalp hair repigmentation after radiotherapy
A 76-year-old man's grey hair turned back to its original color after radiotherapy.
research Weathering of hair in trichoteiromania
Her hair grew back normally after she stopped rubbing it.
research Office Diagnosis of Hair Shaft Defects
The document explains how to identify different hair problems using a microscope.
research Hair regrowth in male and female pattern hair loss does not involve the conversion of vellus hair to terminal hair
Hair regrowth doesn't convert thin hairs to thick hairs, but increases overall hair density.
research Pattern of expression of c-Myc, Max and Bin1 in human anagen hair follicles
c-Myc, Max, and Bin1 help hair follicle cells mature and die.
research Human Hair Follicle and Epidermal Melanocytes Exhibit Striking Differences in Their Aging Profile which Involves Catalase
Hair follicle cells age faster and lose pigment due to less catalase, causing hair to turn gray.
research The Catalog of Human Hair Keratins
Human hair is made up of different keratins, some strong and some weak, with specific types appearing at various stages of hair growth.
research Distribution of Glycolipid and Unsaturated Fatty Acids in Human Hair
Human hair has more unsaturated fats inside than on the surface, and certain lipids may help bind the outer and inner layers together.
research Morphological Changes of Human Hair Related to "Graying".
Gray hair affects hair's movement and appearance, making it less bouncy and more wavy.
research Female pattern hair loss: beyond an androgenic aetiology? Reply from authors
Hair loss in women may have multiple causes, and eyebrow regrowth possible with specific injections.
research Do Hair Bulb Melanocytes Undergo Apotosis During Hair Follicle Regression (Catagen)?
Hair follicle melanocytes die during hair regression.
research Clinicopathologic observation of temporal triangular alopecia
Temporal triangular alopecia usually starts in early childhood and treatment with Minoxidil has limited effectiveness.
research Ablative 2940 nm Er: YAG fractional laser for male androgenetic alopecia
research Visual Diagnosis: An Adolescent Female Who Has Increasing Hair Growth
The girl has a hormonal imbalance causing increased hair growth and other male characteristics.
research Expression of Langerhans cell antigens in the hair follicles in alopecia areata
research 8 Hair follicles and associated glands as androgen targets
Androgens like testosterone affect hair growth and oil production differently across body parts and individuals.
research Local structure of human hair spatially resolved by sub-micron X-ray beam
Human hair has a new region with ordered filaments and the cuticle contains β-keratin sheets.
research Melanogenesis During the Anagen-Catagen-Telogen Transformation of the Murine Hair Cycle
Hair stops producing melanin as it transitions from the growth phase to the resting phase.
research Pseudofolliculitis barbae; current treatment options
The document concludes that stopping shaving or removing affected hair can alleviate Pseudofolliculitis barbae (PFB).
research Dermoscopic Approach to a Small Round to Oval Hairless Patch on the Scalp
Dermoscopic examination helps diagnose different types of hair loss conditions by showing specific patterns.