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11 Luglio 2022
Hee-Geun Jo, Hyehwa Kim, Donghun Lee

Oral administration of East Asian herbal medicine for inflammatory skin lesions in plaque psoriasis: A systematic review, meta-analysis, and exploration of core herbal materials

Nutrients. 2022 Jun 12;14(12):2434
  • I dati di questo studio mostrano che le erbe medicinali dell’Asia orientale somministrate per via orale in monoterapia possono avere un beneficio per il trattamento delle lesioni infiammatorie cutanee psoriasiche.
  • Sono necessari studi di follow-up sulle singole attività farmacologiche e sugli effetti sinergici al fine di utilizzare tali erbe in preparati farmacologici.

Abstract

Psoriasis is an inflammatory autoimmune skin disease with various clinical manifestations. The aim of this review was to systematically evaluate the efficacy and safety of oral administration of East Asian herbal medicine (EAHM) for inflammatory skin lesions in psoriasis and to explore core herbal materials for drug discovery. A comprehensive search was conducted in 10 electronic databases for randomized controlled trials from their inception until 29 July 2021. Statistical analysis was performed in R version 4.1.2 and R studio. When heterogeneity in studies was detected, the cause was identified through sensitivity analysis, meta-regression, and subgroup analysis. Methodological quality was independently assessed using the revised tool for risk of bias in randomized trials. A total of 56 trials with 4966 psoriasis patients met the selection criteria. Meta-analysis favored EAHM monotherapy on Psoriasis Area Severity Index (PASI) 70 (RR: 1.2845; 95% CI: 1.906 to 1.3858, p < 0.0001), PASI 60 (RR: 1.1923; 95% CI: 1.1134 to 1.2769, p < 0.0001), continuous PASI score (MD: -2.3386, 95% CI: -3.3068 to -1.3704, p < 0.0001), IL-17, IL-23, TNF-α, and Dermatology Life Quality Index. Patients treated with EAHM monotherapy had significantly reduced adverse events incidence rate. In addition, based on additional examination of the herb data included in this meta-analysis, 16 core materials were identified. They are utilized in close proximity to one another, and all have anti-inflammatory properties. The findings in this study support that oral EAHM monotherapy may be beneficial for inflammatory skin lesions in psoriasis. Meanwhile, the identified core materials are expected to be utilized as useful drug candidate hypotheses through follow-up studies on individual pharmacological activities and synergistic effects.

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