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( Choong-kyun Noh ),( Bong Sun Kim ),( Gana Hong ),( Jae Youn Cheong ),( Kwang Jae Lee ) 대한소화기기능성질환·운동학회(구 대한소화관운동학회) 2018 Journal of Neurogastroenterology and Motility (JNM Vol.24 No.3
Background/Aims Probiotics are expected to modify the composition of gut microbiota. We aimed to investigate the changes in the composition and diversity of gut microbiota by the administration of probiotics in healthy individuals. Methods Twelve healthy volunteers with age range of 30-42 years provided baseline fecal samples. Subsequently, they took commercially available probiotic capsules (a mixture for Bifidobacterium, Lactobacillus , and Enterococcus ) for 4 weeks. Fecal samples were collected at 4 weeks of administration and 2 weeks after the stop of administration. Fecal microbiota was analyzed via 16S ribosomal RNA gene sequencing. Results The mean Shannon index was not significantly altered by the 4-week administration of probiotics (4.365 vs 4.556, P > 0.05). The proportion of Bacteroidetes, Actinobacteria, Firmicutes, and Proteobacteria was not significantly changed by the 4-week administration of probiotics. At the genus level, the proportions of Lactobacillus (2.138% vs 2.773%, P = 0.028) and Enterococcus (0.022% vs 2.758%, P = 0.004) significantly increased 4 weeks after the administration of probiotics, but reduced 2 weeks after the stop of administration (2.773% vs 3.292%, P = 0.064 and 2.758% vs 0.001%, P = 0.001). Conclusions The diversity of fecal microbiota is not significantly affected by 4 weeks of probiotics administration. The proportion of fecal microbiota at the genus level is significantly altered by the administration of probiotics. However, this effect does not seem to last long, probably because of homeostasis or dietary influence. (J Neurogastroenterol Motil 2018;24:452-459)
아토피피부염 환자에서 StoneTouch(R) 원적외선 조사기를 이용한 광선치료의 임상효과에 관한 연구
김현규 ( Hyun Kyu Kim ),박미경 ( Mi Kyung Park ),박귀영 ( Kui Young Park ),김명남 ( Myeung Nam Kim ),오가나 ( Gana Oh ),서수홍 ( Soo Hong Seo ),안효현 ( Hyo Hyun Ahn ),계영철 ( Young Chul Kye ),김범준 ( Beom Joon Kim ) 대한피부과학회 2012 대한피부과학회지 Vol.50 No.10
Background: Atopic dermatitis (AD) is associated with severe pruritus, but there are only a few effective treatment modalities. Previous studies have demonstrated that infrared light inhibited the development of atopic dermatitis. Objective: This study is to evaluate the efficacy and safety of StoneTouch(R) infrared device in reducing pruritus associated with atopic dermatitis. Methods: A total of 92 patients with atopic dermatitis with mild to moderate AD were enrolled in the randomized single-blind, placebo-controlled study. Randomly assigned StoneTouch(R) or sham device was irradiated three times daily for 14 days trial. Efficacy was evaluated by visual analogue scales and investigator`s assessments. Results: Pruritus scores using VAS evaluated by patients revealed greater improvement in the StoneTouch(R) infrared treatment group. Assessment of treated skin lesion by physicians showed significant improvement of skin findings in treated group. Transient erythema and mild irritation on the treated site were reported in a few patients. These symptoms were diminished within 1∼2 days of treatment. Conclusion: StoneTouch(R) infrared device is safe and effective in reducing pruritus in patients with atopic dermatitis.