research Hormonal regulation of hair follicles exhibits a biological paradox
Androgens can both stimulate and cause hair loss, and understanding their effects is key to treating hair disorders.
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research LncRNAs regulate the cyclic growth and development of hair follicles in Dorper sheep
Certain long non-coding RNAs are important for controlling hair growth cycles in sheep.
research The effect of melatonin implants administered from December until April, on plasma prolactin, triiodothyronine and thyroxine concentrations and on the timing of the spring moult in cashmere goats
Melatonin implants can change the seasonal prolactin levels and hair growth in adult cashmere goats but not in juveniles, and don't delay spring moult for better fiber harvesting.
research Biologic Rhythms Derived from Siberian Mammoths' Hairs
Mammoth hair grew faster than human hair and showed seasonal changes in growth and mineral content.
research Hair coat characteristics in Friesian heifers in the Netherlands and Kenya : experimental data and a review of literature
Friesian heifers take about 18 months to adapt to Kenya's climate, with hair changes not strongly linked to weight gain.
research Identification of key pathways and genes that regulate cashmere development in cashmere goats mediated by exogenous melatonin
Melatonin affects cashmere growth in goats by influencing stem cell and certain signaling pathways.
research Adrenocorticotropic Hormone (ACTH) But Not Alpha-Melanocyte Stimulating Hormone (a-MSH) as a Mediator of Adrenalectomy Induced Hair Growth in Mink
ACTH promotes hair growth in mink, but α-MSH does not.
research Reconstructing temporal variation in great ape and other primate diets: A methodological framework for isotope analyses in hair
Stable isotope analysis of hair helps study primate diets over time non-invasively.
research Local circadian clock gates cell cycle progression of transient amplifying cells during regenerative hair cycling
Hair grows faster in the morning and is more vulnerable to damage from radiation due to the internal clock in hair follicle cells.
research New Activators and Inhibitors in the Hair Cycle Clock: Targeting Stem Cells’ State of Competence
The conclusion is that Fgf18 and Tgf-ß signaling could be targeted for hair loss treatments.
research Seasonal alopecia areata with atopy
A 5-year-old boy's seasonal hair loss is linked to his allergies.
research Function and underlying mechanisms of seasonal colour moulting in mammals and birds: what keeps them changing in a warming world?
Animals that change color with the seasons mainly do so in response to daylight changes, but climate change is causing camouflage problems that may require evolutionary changes.
research Complex Hair Cycle Domain Patterns and Regenerative Hair Waves in Living Rodents
Mice hair growth patterns get more complex with age and can change with events like pregnancy or injury.
research Prolactin and Its Receptor Are Expressed in Murine Hair Follicle Epithelium, Show Hair Cycle-Dependent Expression, and Induce Catagen
Prolactin affects hair growth cycles and can cause early hair follicle regression.
research Prolactin Signaling Influences the Timing Mechanism of the Hair Follicle: Analysis of Hair Growth Cycles in Prolactin Receptor Knockout Mice*
Prolactin affects when mice shed and grow hair.
research The hair cycle on the human thigh and upper arm
Men's thigh hair grows longer and has a longer growth cycle than women's, but arm hair growth is similar between genders.
research Adrenal steroid hormone concentrations in dogs with hair cycle arrest (Alopecia X) before and during treatment with melatonin and mitotane
Melatonin and mitotane treatment led to hair re-growth in 62% of dogs with Alopecia X, but this was not always linked to normal hormone levels.
research Systematic Analysis of Non-coding RNAs Involved in the Angora Rabbit (Oryctolagus cuniculus) Hair Follicle Cycle by RNA Sequencing
Non-coding RNAs play key roles in the hair growth cycle of Angora rabbits.
research The Follicular Automaton Model: Effect of Stochasticity and of Synchronization of Hair Cycles
The model showed that randomness accurately describes individual hair growth cycles and that synchronization can cause large fluctuations not seen in humans.
research Prolactin Signaling Influences the Timing Mechanism of the Hair Follicle: Analysis of Hair Growth Cycles in Prolactin Receptor Knockout Mice
Prolactin affects when mice shed and grow hair.
research Seasonal Gene Expression Profile Responsible For Hair Follicle Development In Angora Goats
Seasonal changes affect gene activity linked to hair growth in Angora goats, influencing mohair quality.
research Histological characteristics of hair follicles at different hair cycle and in vitro modeling of hair follicle-associated cells of yak (Bos grunniens)
The study provides insights into hair growth mechanisms in yaks.
research Seasonal Gene Expression Profile Responsible for Hair Follicle Development in Angora Goats
Seasonal changes affect gene activity linked to hair growth in Angora goats.
research Seasonal Gene Expression Profile Responsible for Hair Follicle Development in Angora goats
Seasonal changes affect hair growth genes in Angora goats, possibly influencing mohair quality.
research Genome-wide detection and sequence conservation analysis of long non-coding RNA during hair follicle cycle of yak
Researchers found that certain RNA sequences play a role in yak hair growth and these sequences are somewhat similar to those in cashmere goats.
research Principles of Hair Cycle Control
Manipulating the catagen and telogen phases of hair growth could lead to treatments for hair disorders.
research The effects of finasteride (Proscar) on hair growth, hair cycle stage, and serum testosterone and dihydrotestosterone in adult male and female stumptail macaques (Macaca arctoides).
Finasteride increases hair growth, prolongs hair cycle, and lowers dihydrotestosterone levels.
research Resting no more: re‐defining telogen, the maintenance stage of the hair growth cycle
The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.
research Exogen, Shedding Phase of the Hair Growth Cycle: Characterization of a Mouse Model
Researchers found that hair shedding happens mostly when new hair is growing and involves a unique process.
research Improving stable isotopic interpretations made from human hair through reduction of growth cycle error
The conclusion is that recognizing hair growth cycles can improve the precision of dietary and health assessments from hair analysis.