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This study observed that both ritlecitinib and brepocitinib improved scalp biomarkers in patients with alopecia areata, with associations to hair regrowth seen in this phase 2a trial.

This study proposed that the tiger tail phenomenon in trichothiodystrophy hair is caused by regular undulations of hair fibers, altering the optical properties seen under polarized light.

This study found that hair diameter increases toward the scalp during pregnancy, a novel observation compared to the normal decrease seen in nonpregnant women.

This study found that eflornithine HCl 13.9% cream reduces unwanted facial hair growth in women, with effects seen in up to 60% of participants over 4-8 weeks, with mostly minor skin irritation reported.

This study observed that minoxidil induced myocardial necroses and hemorrhages in beagle dogs and miniature swine, with greater severity seen in dogs.

In this study, pioglitazone treatment in patients with lichen planopilaris showed limited success, with significant improvement seen in only a minority of cases.

This study found that multimetal starvation by the immune protein calprotectin triggers unique regulatory responses in Pseudomonas aeruginosa, beyond those seen with individual metal shortages.

This article introduces the term "anisotrichosis" to describe the significant variation in hair shaft diameters observed in pattern alopecia, drawing a parallel to anisocytosis seen in blood smears, but reports no new research findings.

This review found that platelet-rich plasma therapy improved hair growth and thickness in most studies on alopecia, with the highest improvement seen when combined with Minoxidil.

This study found that finasteride affected ethanol withdrawal severity differently in WSP and WSR lines, with more modulation seen in the WSP line.

This study found that in rheumatoid arthritis patients, inflammatory macrophages activate steroid metabolism to increase glucocorticoid and androgen production, which helps suppress inflammation and attenuate hyperproliferation in synovial fibroblasts, with notable disturbances seen in postmenopausal women due to diminished inactive steroid precursors.

This study found that repeated oral intake of 0.5 or 5 mg/kg of cobalt ferrite nanoparticles induced pulmonary toxicity in rats, with dose-dependent oxidative stress and inflammation observed, but no notable toxicity was seen at a 0.05 mg/kg dose.

This study found that compared to influenza patients, COVID-19 patients had fewer complications overall, but exceptions with higher risks were seen in hair loss, heart failure, mood disorder, and dementia.

This study describes a 4-year-old boy who exhibits a rare, synchronized pattern of hair growth and shedding, unlike the typical asynchronous pattern seen in humans.

This case study describes a 14-year-old girl with pili annulati who had fragile hair, which may be due to cavities within the hair shafts as seen in electron microscopic examinations.

This letter to the editor raises concerns about the possibility of cornrowing leading to dermatologic problems such as traction alopecia, paralleling issues seen with other cosmetic fads.

This study observed that in mice, small-scale x-ray irradiation resulted in uniquely rapid healing of hair follicles, differing from the hypertrophic and hyperplastic responses seen in larger irradiated areas.

In this study, lecithin-based microparticle formulations of minoxidil showed enhanced skin penetration and comparable hair growth effectiveness to commercial products in mice, while minimizing skin irritation often seen with standard minoxidil solutions.

This study reports that the global age-standardized incidence and disability-adjusted life-year rates of alopecia areata decreased from 1990 to 2019, with the highest increases in incidence seen in some low SDI regions and countries like Kuwait and South Sudan.

This study found that age-related fluctuations in hormones and endocannabinoids in male C57BL/6 mice showed specific patterns, with peak values observed around 2.7 to 3.4 months, with these patterns seen in both plasma and hair but with different magnitudes.

This study found that rosemary oil and minoxidil 2% both increased hair count equally in patients with androgenetic alopecia after 6 months, with more scalp itching seen in the minoxidil group.

This review discusses the history, structure, and biological significance of keratins, including the crystal structure of a keratin helical segment, without reporting new experimental results.

This study observed that oral tofacitinib was reasonably well-tolerated but had limited efficacy in treating alopecia areata, with a clinical response seen in 41.4% of patients over six months.

This study details the characteristics of lipedematous alopecia and lipedematous scalp, two rare scalp conditions, suggesting they may represent different stages of the same disorder, with lipedematous scalp lacking the hair loss seen in lipedematous alopecia.

This study found that limb hair loss in frontal fibrosing alopecia is inflammatory and permanent, but lacks the classic scarring features seen in scalp alopecia, prompting potential misdiagnosis as alopecia areata.

This study observed that without any treatment, hair counts did not increase, suggesting that counting methods are unlikely to explain the 'placebo-effect' seen in previous minoxidil studies.

This case report describes a 37-year-old woman whose recurrent hair shedding was associated with low iron stores and a miscarriage, with improvements seen after increased iron intake.

This study observed that aged dogs exhibit atrophy of the epidermis, appendages, and dermis, along with variable skin changes and increased dermal pigmentation, but lack senile elastosis seen in humans.

In this study, researchers observed that acute stress increased levels of the enzyme 5αR2 in the medial prefrontal cortex of male rats, affecting stress reactivity, but this effect was not seen in females.

This study observed that individuals with major unipolar depression have higher levels of sodium and potassium in their hair and decreased antidiuretic hormone levels, similar to changes seen in astronauts after space missions.