α-Bisabolol (αBIS), a plant-derived compound with anti-inflammatory properties, is potentially a therapeutic agent for Atopic dermatitis. However, its poor water solubility and photoinstability limit its topical application. Therefore, the present study, aimed to develop cationic polymeric nanocapsules of αBIS to improve its skin delivery, photostability, and therapeutic efficacy. The αBIS-loaded nanocapsules were prepared using the solvent displacement technique. A Box-Behnken (BB) design was employed to statistically optimize formulation variables and αBIS-loaded nanocapsules characterized by particle size, surface charge and encapsulation efficiency. The optimal formulation was selected, and the spherical shape of the nanocapsules was confirmed by scanning electron microscopy (SEM). Furthermore, hydrogel containing αBIS-loaded nanocapsules was prepared by thickening of nanocapsule suspension with Carbopol 934 and evaluated for rheology, in vitro drug release and skin permeation. Furthermore, a mice model of atopic dermatitis was used to evaluate the anti-inflammatory potential of the hydrogels. The optimal formulation displayed a spherical morphology under scanning electron microscopy (SEM) with an optimum particle size of 133.00 nm, polydispersity index (PDI) of 0.12, high EE% of 93 %, and improved optical stability of αBIS in the prepared nanocapsules compared to the free drug. The nano-based hydrogels demonstrated non-Newtonian pseudoplastic behavior and an increased αBIS in vitro release profile without causing skin irritation in rabbits. Drug retention within the dermis and epidermis layers significantly surpassed that of drug-free hydrogel. Moreover, in vivo histopathological studies and myeloperoxidase (MPO) enzyme activity, revealed that hydrogel containing bisabolol nanocapsules exhibited The best anti-inflammatory effect. The results showed that hydrogels containing bisabolol nanocapsules markedly alleviated dermatitis-related inflammation and reduced skin thickness in Balb/c mice. Our findings support nanocapsules as an effective drug delivery system to enhance αBIS stability, bioavailability, and therapeutic efficacy in AD treatment.
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http://dx.doi.org/10.1016/j.ijpharm.2024.124029 | DOI Listing |
BMJ Case Rep
January 2025
General Internal Medicine & Infectious Diseases, Hiroshima Prefectural Hospital, Hiroshima, Japan.
Varicella-zoster virus (VZV) is a known cause of meningoencephalitis, typically in immunocompromised inpatients. We report a case of meningitis caused by VZV in an immunocompetent man in his 20s. Diagnosis was delayed due to the atypical presentation of painless occipital zoster mimicking atopic dermatitis, and the presence of hypoglycorrhachia in his cerebrospinal fluid.
View Article and Find Full Text PDFJ Dermatolog Treat
December 2025
Institute for Health Services Research in Dermatology and Nursing (IVDP), University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany.
Purpose: Dupilumab is a widely recommended treatment for moderate-to-severe atopic dermatitis (AD), with known ocular side effects but less frequent cutaneous reactions.
Material And Methods: This case report details a 52-year-old female patient with atopic dermatitis treated with dupilumab. After an initially successful treatment, the patient developed a rosacea-like dermatitis.
J Dermatolog Treat
December 2025
Center for Translational Dermatology, Department of Dermatology, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA.
Methods: A literature search was conducted on Drugs@FDA: FDA-Approved Drugs for the year 2024 to identify new dermatologic treatments.
Results: In 2024, the FDA approved seven new dermatologic therapies and expanded the indications for seven current therapies. These therapies treat conditions such as atopic dermatitis, hidradenitis suppurativa, prurigo nodularis, molluscum contagiosum, and alopecia areata, among others.
Allergy
January 2025
Department of Pediatrics, Severance Hospital, Institute of Allergy, Institute for Innovation in Digital Healthcare, Yonsei University College of Medicine, Seoul, Korea.
Birth Defects Res
February 2025
Translational Research Division, Chugai Pharmaceutical Co. Ltd., Chuo, Japan.
Background: Nemolizumab, a humanized monoclonal antibody against interleukin-31 receptor A (IL-31RA), is used to treat atopic dermatitis and prurigo nodularis. These inflammatory skin diseases affect a wide range of age groups, including pregnant women and children; however, little is known about their biological effects on pre- and postnatal development. Therefore, we report and discuss the results of an enhanced pre- and postnatal development study in cynomolgus monkeys treated with nemolizumab, which also incorporates an assessment of juvenile toxicities.
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