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This commentary critiques the definition of iron deficiency in hair loss studies, suggesting higher serum ferritin levels as a more accurate threshold for diagnosing deficiency in women.

This case series observed that ovarian hyperthecosis can manifest with hyperandrogenism and insulin resistance in postmenopausal women, even when serum testosterone levels are below diagnostic thresholds, suggesting potential gaps in current diagnostic criteria.

This study found that when metabolism changes and extracellular glucose decreases, hippocampal CA3 neurons release ATP, which is converted to adenosine and reduces neuron excitability, enhancing the seizure threshold.

In this study, the ChatGPT-5 model accurately answered 76.47% of questions on the Polish endocrinology specialty exam, surpassing the 60% passing threshold, yet its role in clinical decision-making remains uncertain, highlighting the need for further research.

This study reviewed evidence on cutaneous reactions and associated radiation doses from cranial or spinal neurointerventional procedures, finding that alopecia/epilation was most common and onset doses often aligned with known thresholds, highlighting the need for standardized dose reporting and follow-up.

This infographic compares the safety profiles of SH‑1, a cosmetic ingredient, which showed no systemic absorption, and PP405, an investigational drug with dose-dependent systemic uptake and potential threshold breaches, highlighting differences in safety between cosmetic and investigational substances according to this report.

This study found that ritlecitinib 50 mg is cost-effective compared to no treatment for patients in Japan with alopecia areata and significant scalp hair loss, demonstrating an incremental cost-effectiveness ratio below the country's cost-effectiveness threshold.

In this study, researchers observed that inhibiting myosin light chain kinase in hair cells reduced stiffness and oscillation in bullfrog hair bundles and increased hearing thresholds in mice.

This study, examining perceptible hair density changes in androgenetic alopecia patients, found that dermatologists could accurately detect hair loss at a lower threshold than previously noted, specifically at a 22.66% relative density difference, challenging assumptions about their predictive accuracy based solely on clinical examination.

In this study, researchers investigated factors predicting resistance to clomiphene citrate in women with anovulatory PCOS, identifying AMH and SHBG levels as significant indicators, but they found no reliable thresholds for predicting resistance to the standard 50 mg/day dose.

In this pilot study, researchers observed that low-intensity laser radiation at 445±40 nm increased the temperature of gingival tissues in Wistar rats by 8.37°C without exceeding the safety threshold, suggesting potential for clinical trials.

This article provides an overview of minoxidil's application as a vasodilator for severe hypertension and its topical use for treating androgenetic alopecia, detailing its effective plasma threshold levels for hair growth induction without new findings.

This study found that topical phenylephrine, an α1-AR agonist, significantly reduced hair shedding and increased epilation force threshold in women experiencing traction alopecia during cosmetic procedures.

This study found that deoxycorticosterone-derived neurosteroids modulate GABA A receptor function and may influence stress-induced changes in seizure susceptibility by elevating seizure thresholds in animal models.

This study found that for managing early-onset androgenetic alopecia in men, minoxidil monotherapy is cost-effective at a $50,000 willingness-to-pay threshold, while combining minoxidil with platelet-rich plasma becomes cost-effective at a $100,000 threshold.

In this study, researchers reported that adult females approaching menopause in Canada generally had similar or lower blood concentrations of toxic, essential, and trace elements compared to their peers, but most participants showed zinc levels below the proposed adequacy threshold.

This study reports that hyperuricemia, the second most common metabolic disease after diabetes, is linked to numerous health issues, especially in males, and recommends lifestyle modifications as an effective management strategy, highlighting the lack of consensus on uric acid thresholds necessitating drug therapy.

This study confirmed that the Alopecia Areata-Investigator Global Assessment and other clinical outcome assessments are valid and relevant measures of treatment success for alopecia areata patients in Japan, aligning with previous North American findings.

This report describes a rare case of severe combined immunodeficiency caused by a FOXN1 gene variant, complicated by Epstein-Barr virus infection and high-grade B-cell lymphoma, leading to the infant's death despite treatment efforts.

FPHL affects hair density and diameter, causing visible hair loss in older women.

This study found that testosterone increased seizure severity in mice and rats, with its neurosteroid metabolites playing a role in modulating seizure susceptibility.

This case report describes a 19-year-old female who experienced reversible severe alopecia and ascites after a large partial hepatectomy for minimal deviation hepatoma, despite incomplete liver regeneration.

This consensus document reviews current knowledge on sex differences in essential hypertension and identifies areas needing further research to improve sex-specific prevention and management strategies.

This study found that the patchwork mutation in mice affects melanocyte survival in hair follicles, leading to a variegated coat pattern without partially pigmented hairs due to a community effect among melanoblasts.

This study found that enhanced neurosteroid synthesis likely mediated by the translocator protein contributed to the anticonvulsant action of midazolam in mice.

Neurosteroids in the brain can increase or decrease seizure risk in mice.

In this study, researchers observed that knocking out KCNQ3 in mice increased firing frequencies in response to stimuli, particularly at slow mechanical indentation velocities, indicating a role in mechanosensory neuron sensitivity.

This study found that trichodynia is associated with both peripheral and central sensitization, potentially linked to hair cycle abnormalities and chronic pain through proinflammatory agents.

A score of 6 or less is recommended to diagnose hirsutism in Colombian women.

This study found that iron deficiency was common in both women with hair loss and control subjects, with no higher incidence in the hair loss group.