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This study reports that among adults with severe alopecia areata taking ritlecitinib, 49% saw hair regrowth within 3 months, increasing to 82% after more than 6 months; treatment satisfaction also rose with longer duration, indicating sustained efficacy and improved quality of life over time.

This study showed that coexpression of TG2 and Gbx1 in the epidermis is necessary for esophagus-like mucosal transdifferentiation, with TGF-beta2 in the dermis essential for the process through epithelial-mesenchymal interaction.

This study found that low temperature triggers root hair elongation in Arabidopsis thaliana through a FERONIA-ROP2-TORC signaling pathway, also activated by nitrogen deficiency.

This case study reported on a 3-year-old child with vitamin D-dependent rickets type II treated in the Gaza Strip, whose condition deteriorated despite vitamin D and calcium treatments, leading to recurrent chest infections, respiratory failure, and eventual death.

This report describes two cases of Rapp–Hodgkin ectodermal dysplasia where refractory scalp erosions improved significantly with potent topical steroids; it also suggests a potential link between these scalp conditions and erosive pustular dermatosis of the scalp in elderly patients.

In this study, eight patients with hereditary vitamin D-resistant rickets who share a specific VDR mutation showed improved clinical symptoms except alopecia after up to 11 years of treatment.

This study found that patients with severe alopecia areata are willing to accept increased risks of serious infection, cancer, and blood clots when opting for a higher dose of ritlecitinib, valuing the potential for greater hair regrowth efficacy compared to a lower dose.

In this study, Ritlecitinib was reported as a newly approved treatment for alopecia areata that can be used in patients aged 12 and older; after 24 weeks, it resulted in 80% or more scalp hair coverage in treated patients compared to a placebo.

This case report describes a Thai male with TRPS1 who exhibited unique and unreported features such as hypoplastic mandibular condyles, double mental foramina, and distinctive hair abnormalities.

This study reported high analytical performance of an RMP for DHT quantification, with the ability to differentiate between 5α-DHT and 5β-DHT isomers, making it suitable for routine assay standardization and clinical sample evaluation.

This study reported a series of eight children with hereditary vitamin D-resistant rickets in Tunisia, identifying both common and novel mutations in the vitamin D receptor gene, and noting significant improvement with intravenous calcium treatment in most patients.

This report describes siblings with vitamin D-dependent rickets type 2, characterized by growth retardation, alopecia totalis, and low 25(OH)D3 levels, highlighting its autosomal recessive pattern and distinction from other rickets types.

This study reported that most patients with alopecia areata who responded to ritlecitinib treatment by achieving a SALT score ≤20, SALT score ≤10, or improvements in eyebrow and eyelash assessments at Week 24 maintained their responses through Week 48.

This study demonstrated that mice lacking skin-specific RXRalpha expression developed hair follicle degeneration and alopecia, indicating the importance of RXRalpha/VDR heterodimers in maintaining hair follicle homeostasis.

This research discusses the parallel clinical development of ritlecitinib, an oral Janus kinase 3/tyrosine kinase inhibitor, for treating conditions such as alopecia areata, vitiligo, ulcerative colitis, Crohn's disease, and rheumatoid arthritis. Results are not reported in the abstract.

This review provides insights and guidelines for clinicians and patients on assessing the risks and benefits of ritlecitinib for adolescents with alopecia areata, emphasizing shared decision-making and management strategies.

This case study identified Trichophyton rubrum as the cause of trichophytia profunda acuta in a patient using nested PCR, suggesting an alternative diagnostic approach when KOH tests and cultures fail.

This review highlights the role of reactive oxygen species in root hair growth and cell expansion in plants but does not report new empirical findings.

This study found that certain gene polymorphisms, specifically MTHFR 677CC and GGH 401TT and CT genotypes, were associated with fewer adverse effects from methotrexate in rheumatoid arthritis patients.

This study evaluated the effectiveness and safety of ritlecitinib in patients aged 12 or older with alopecia totalis or universalis, finding higher hair regrowth response rates compared to placebo at 24 weeks, with continued improvement and acceptable safety through 48 weeks.

This study found that TLR2 in hair follicle stem cells is crucial for maintaining hair health and regeneration, and its decrease in aging and obesity may impair hair growth, suggesting that stimulation through its ligand carboxyethylpyrrole could offer new therapeutic avenues.

Ritlecitinib is effective and safe for treating alopecia areata, promoting significant hair regrowth.

This article reviews different generations of synthetic retinoids for dermatological use, discussing their efficacy and significant side effects, but reports no new clinical results.

This case report details a 21-year-old woman with dermatopathia pigmentosa reticularis, presenting with generalized reticulate hyperpigmentation, diffuse noncicatricial alopecia, onychodystrophy, palmoplantar keratoderma, and poorly developed dermatoglyphics.

In this study, researchers identified the CBL1-CIPK26 Ca 2+ sensor-kinase complexes as key modulators of the NADPH oxidase RBOHC crucial for root hair differentiation in plants.

This study found that RXR-alpha is strongly expressed in both normal and psoriatic human skin, suggesting it may play a role in the transition from proliferation to differentiation in epidermal keratinocytes.

This study observed that patients with alopecia areata taking ritlecitinib reported higher satisfaction with hair growth after 24 and 48 weeks compared to those taking a placebo, aligning with improvements in hair growth noted by doctors.

This review discusses the various roles of RANK signaling in bone remodeling, immune function, and epithelial differentiation, highlighting its potential involvement in cancer mechanisms; it reports no new clinical results.

This study observed that among rheumatoid arthritis patients, 22% had thyroid dysfunction, with hypothyroidism as the most common, and weight gain and cold intolerance were significant predictors.

In this study, a Chinese Han family with hereditary vitamin D-resistant rickets was found to have a homozygous missense mutation in the VDR gene, and the affected individual uniquely responded well to treatment with oral calcium and low-dose calcitriol.