BackgroundTopical corticosteroids (TCS) are the first-line agents for the treatment of atopic dermatitis (AD). However, a vague phobia concerning the use of TCS exists among parents of children with AD because of misinformation, and studies on the subject are insufficient.ObjectiveTo assess the current state of steroid phobia among parents of atopic children in Korea and to investigate the importance of education in its reduction.MethodsBy using a structured questionnaire, 126 parents of children with AD (22.2% fathers, 77.8% mothers) were interviewed. After the questionnaire administration, all participants were educated about TCS use.ResultsOverall, 67.5% of the parents showed steroid phobia. A statistical correlation was found between steroid phobia and knowledge of potential adverse events, experience of TCS use, and adherence to treatment (p<0.05). Adherence to treatment tended to be lower among parents with steroid phobia. The most recognized adverse effects of TCS were skin atrophy and thinning (71.9%). The most prevalent information source leading to steroid phobia was the Internet (49.2%). The risk factors for steroid phobia were AD severity (odds ratio [OR]=5.332 [moderate], 9.040 [severe] vs. mild; p=0.001) and the knowledge of potential adverse events (OR=2.658; p=0.021).ConclusionWe found a high prevalence of steroid phobia among parents of patients with AD, and here show the impact of this phobia on treatment adherence. We emphasize the important role of dermatologists as providers of accurate information and appropriate education about the use of TCS.

The dry eye symptom was more common in patients with psoriasis. In addition, the patients showed a higher tear film instability and significant degeneration on the ocular surface when compared with the normal controls.

This current study investigates the facilitative effects and mechanisms of decursin, a major component of Angelica gigas Nakai (AGN), and AGN root extract on hair growth in mice. We perform high-performance liquid chromatography on AGN extract to show it contains 7.3% decursin. Hairs in mouse dorsal skin are shaved distilled in water, 0.15% decursin, and 2% AGN root extract (0.15% decursin in the diluted extract) and topically applied twice a day for 17 days. Hematoxylin and eosin staining are done to examine the morphological changes in the hair follicles. To compare the effects of decursin and AGN extract on inflammatory cytokines in the dorsal skin, Western blot analysis and immunohistochemistry for tumor necrosis factor α (TNF-α) and interleukin (IL)-1β as pro-inflammatory cytokines, and IL-4 and IL-13 as anti-inflammatory cytokines are conducted. The results show that the application of decursin and AGN extract confer effects on hair growth. Hair growth is significantly facilitated from seven days after the treatments compared to that in the control group, and completely grown hair was found 17 days after the treatments. The protein levels and immunoreactivity of TNF-α and IL-1β in this case are significantly decreased, whereas the IL-4 and IL-13 levels and immunoreactivity are significantly increased compared to those in the control group. Additionally, high-mobility group box 1, an inflammatory mediator, is elevated by the topical application of decursin and AGN extract. Taken together, the treatment of mouse dorsal skin with AGE root extract containing decursin promotes hair growth by regulating pro- and/or anti-inflammatory cytokines. We, therefore, suggest that AGN root extract as well as decursin can be utilized as materials for developing hair growth-facilitating treatments.

In recent years, the use of botanical agents to prevent skin damage from solar ultraviolet (UV) irradiation has received considerable attention. Oenanthe javanica is known to exert anti-inflammatory and antioxidant activities. This study investigated photoprotective properties of an Oenanthe javanica extract (OJE) against UVB-induced skin damage in ICR mice. The extent of skin damage was evaluated in three groups: control mice with no UVB, UVB-exposed mice treated with vehicle (saline), and UVB-exposed mice treated with 1% extract. Photoprotective properties were assessed in the dorsal skin using hematoxylin and eosin staining, Masson trichrome staining, immunohistochemical staining, quantitative real-time polymerase chain reaction, and western blotting to analyze the epidermal thickness, collagen expression, and mRNA and protein levels of type I collagen, type III collagen, and interstitial collagenases, including matrix metalloproteinase (MMP)-1 and MMP-3. In addition, tumor necrosis factor (TNF)-α and cyclooxygenase (COX)-2 protein levels were also assessed. In the UVB-exposed mice treated with extract, UV-induced epidermal damage was significantly ameliorated. In this group, productions of collagen types I and III were increased, and expressions of MMP-1 and MMP-3 were decreased. In addition, TNF-α and COX-2 expressions were reduced. Based on these findings, we conclude that OJE displays photoprotective effects against UVB-induced collagen disruption and inflammation and suggest that Oenanthe javanica can be used as a natural product for the treatment of photodamaged skin.