The British journal of dermatology
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The scalp is commonly associated with itch and burning sensations. Previous studies have shown the scalp is highly innervated compared with other body areas. However, limited data are available on sensory testing associated with C nerve fibres of the healthy scalp. ⋯ This study demonstrates a significant insensitivity of C nerve fibres of the scalp to warmth, heat pain, itch and neurogenic inflammation. These results suggest that the scalp has an aberrant response of C nerve fibres.
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Randomized Controlled Trial Multicenter Study
Efficacy and safety of tofacitinib, an oral Janus kinase inhibitor, in the treatment of psoriasis: a Phase 2b randomized placebo-controlled dose-ranging study.
Tofacitinib is a novel, oral Janus kinase inhibitor under investigation as a potential treatment for plaque psoriasis. ⋯ Short-term treatment with oral tofacitinib results in significant clinical improvement in patients with moderate-to-severe plaque psoriasis and is generally well tolerated.
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Keloid is a unique proliferative disorder of fibroblasts resulting from derailment of the typical wound healing process. Due to lack of animal models for therapeutic testing, treatment of keloids remains a clinical challenge. Transforming growth factor (TGF)-β1-related signalling plays a key role in keloid formation. As tacrolimus (FK506) has been reported to inhibit the effects of TGF-β1 on cultured fibroblasts, we hypothesized that FK506 may be useful in treating keloids. ⋯ Our results demonstrate that FK506 effectively blocks the TGF-β/Smad signalling pathway in KFs by downregulation of TGF-β receptors and suggest that FK506 may be included in the armamentarium for treating keloids.