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Primary Sclerosing Cholangitis with Inflammatory Bowel Disease in Korean Children
Yoon, Jisun,Oh, Seak Hee,Kim, Hyun Jin,Park, Sang Hyoung,Ye, Byong Duk,Yang, Suk-Kyun,Kim, Kyung Mo The Korean Society of Pediatric Gastroenterology 2015 Pediatric gastroenterology, hepatology & nutrition Vol.18 No.4
Purpose: Primary sclerosing cholangitis (PSC) is a rare condition that can be associated with inflammatory bowel disease (IBD). The aim of this study was to evaluate PSC and its association with IBD in children. Methods: We retrospectively enrolled 13 pediatric patients (<18 years) with PSC treated at Asan Medical Center between June 1989 and December 2013. Clinical findings and long-term outcomes were investigated. During the same period, the incidence of PSC among IBD patients was evaluated among 600 Crohn disease (CD) and 210 ulcerative colitis (UC) patients. Results: All 13 study patients diagnosed with PSC also presented with IBD. Eleven boys and two girls with a median age of 15.0 years old (9.0-17.8 years) were included. The cumulative incidence of PSC for UC was 5.7% (12 of 210) and 0.2% for CD (1 of 600), respectively. PSC occurred during follow-up for IBD for five patients (38.5%) whereas, IBD developed during follow-up for PSC for two patients (15.4%), and was diagnosed during the initial work-up for PSC for 6 patients (46.2%). For the 77.3 month median follow-up period, 9/13 patients (69.2%), neither the clinical symptoms nor blood test results worsened. Two cases (15.4%) developed liver cirrhosis and underwent liver transplantation. Among 13 PSC patients with IBD, two (15.4%) developed colorectal cancer, and no one developed cholangiocarcinoma. Conclusion: All patients with PSC in this study had associated IBD. The incidence of PSC was not rare compared to reports in adults. PSC should be considered during the management of IBD and vice versa in children.
Primary Sclerosing Cholangitis with Inflammatory Bowel Disease in Korean Children
Jisun Yoon,Seak Hee Oh,Hyun Jin Kim,Sang Hyoung Park,Byong Duk Ye,Suk-Kyun Yang,Kyung Mo Kim 대한소아소화기영양학회 2015 Pediatric gastroenterology, hepatology & nutrition Vol.18 No.4
Purpose: Primary sclerosing cholangitis (PSC) is a rare condition that can be associated with inflammatory bowel disease (IBD). The aim of this study was to evaluate PSC and its association with IBD in children.Methods: We retrospectively enrolled 13 pediatric patients (<18 years) with PSC treated at Asan Medical Center between June 1989 and December 2013. Clinical findings and long-term outcomes were investigated. During the same period, the incidence of PSC among IBD patients was evaluated among 600 Crohn disease (CD) and 210 ulcerative colitis (UC) patients.Results: All 13 study patients diagnosed with PSC also presented with IBD. Eleven boys and two girls with a median age of 15.0 years old (9.0-17.8 years) were included. The cumulative incidence of PSC for UC was 5.7% (12 of 210) and 0.2% for CD (1 of 600), respectively. PSC occurred during follow-up for IBD for five patients (38.5%) whereas, IBD developed during follow-up for PSC for two patients (15.4%), and was diagnosed during the initial work-up for PSC for 6 patients (46.2%). For the 77.3 month median follow-up period, 9/13 patients (69.2%), neither the clinical symptoms nor blood test results worsened. Two cases (15.4%) developed liver cirrhosis and underwent liver transplantation. Among 13 PSC patients with IBD, two (15.4%) developed colorectal cancer, and no one developed cholangiocarcinoma. Conclusion: All patients with PSC in this study had associated IBD. The incidence of PSC was not rare compared to reports in adults. PSC should be considered during the management of IBD and vice versa in children.
Yoon, Jisun,Khi, Nguyen Tien,Kim, Heonjo,Kim, Byeongyoon,Baik, Hionsuck,Back, Seunghoon,Lee, Sangmin,Lee, Sang-Won,Kwon, Seong Jung,Lee, Kwangyeol The Royal Society of Chemistry 2013 Chemical communications Vol.49 No.6
<P>The CO-assisted thermal decomposition of a new, surfactant-ligated Pt precursor, [Pt(acac)(NHR)]<SUB><I>n</I></SUB> (<I>n</I> = 2, 3; R = C<SUB>18</SUB>H<SUB>37</SUB>), gives structurally uniform five-fold twinned Pt nanorods. The Pt nanorods, mostly covered by {100} facets, exhibit much enhanced electrocatalytic activity over {100} faceted Pt nanocubes, indicating the superior catalytic performance due to the presence of the reactive twinning interface.</P> <P>Graphic Abstract</P><P>CO assisted reduction of an octadecylamine-ligated Pt precursor produced electrocatalytically active, five-fold twinned {100} Pt nanorods. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c2cc36905b'> </P>
Yoon, Jisun,Baik, Hionsuck,Lee, Sangmin,Kwon, Seong Jung,Lee, Kwangyeol RSC Pub 2014 Nanoscale Vol.6 No.12
<P>Ultralong coaxial Au@Pt nanocables prepared by one-pot synthesis exhibit excellent electrocatalytic activity due to structural features of (1) numerous twinning boundaries and (2) lattice mismatch between the core and the shell.</P>
Optimal Fluence and Duration of Low-Level Laser Therapy for Efficient Wound Healing in Mice
( Jisun Yoon ),( Ji Hyun Park ),( Jee-woong Choi ),( You Chan Kim ) 대한피부과학회 2021 Annals of Dermatology Vol.33 No.4
Background: Low-level laser (light) therapy is a promising technology that stimulates healing, relieves pain and inflammation, and restores function in injured body parts. However, few studies have compared the effects of lightemitting diodes of different fluence levels or different treatment durations. Objective: Here, we investigated the effects of various fluence levels and treatment durations on wound closure in mice. Methods: Full-thickness wounds were created on the dorsal skin using an 8-mm diameter punch, and the wounds were irradiated at 1, 4, or 40 J/cm<sup>2</sup> for 5 consecutive days starting on day 1. To determine the optimal irradiation duration, wounds were irradiated at the most potent fluence of previous study for 5, 10, or 15 days. Photographic documentation, skin biopsies, and wound measurements were performed to compare the effects of different treatment parameters. Results: The most effective fluence level was 40 J/cm<sup>2</sup> at day 5, as determined by monitoring wound closure. There were no statistically significant differences in wound healing with different durations. Conclusion: We have shown that repeated exposure to low levels of light significantly stimulates wound healing in mice and demonstrated more efficient wound closure with certain fluences of 830 nm irradiation. (Ann Dermatol 33(4) 318∼323, 2021)
Primary cicatricial alopecia in South Korea : a 10-year nationwide cohort study
( Jisun Yoon ),( Byungwoo Soh ),( Jeewoong Choi ) 대한피부과학회 2017 대한피부과학회 학술발표대회집 Vol.69 No.2
Background: Primary cicatricial alopecia (PCA) is a stressful disorder for the affected patients and medically challenging for dermatologists. It is known to be uncommon, however, there is no large-scale study regarding the epidemiology of PCA. Objectives: To investigate the incidence, distribution of PCA subtypes, disease co-occurrence rates, and frequently prescribed medication of PCA. Methods: We investigated the National Health Insurance Service-National Sample Cohort for patients diagnosed with PCA according to the International Classification of Diseases. Annual and overall incidence rates and prevalence of PCA during the study period (2004-2013) were estimated. Results: The overall incidence was 6.10 (95% confidence interval, CI : 5.62 - 6.60) per 100,000 person-years. The incidence rate was stable over time (risk ratio, RR=1.012, p=0.201) and lower in female patients (RR=0.718, p<0.001). The overall prevalence was 20.93 (95% CI : 17.97 - 23.86) per 100,000 persons. TFolliculitis decalvans and dissecting cellulitis were the most common subtypes of PCA. PCA was significantly associated with thyroid disorders (age-sex adjusted odds ratio, OR=1.75, p<0.001), but not with dyslipidemia (age-sex adjusted OR=1.02, p=0.863). The most frequently prescribed medication was topical clobetasol and oral corticosteroids. Conclusion: Our study is the first study reporting the epidemiology of PCA on a large scale. We found predominance of male and neutrophil associated subtypes of PCA.
Perinatal maternal negative life events as risk factors of atopic dermatitis in female offspring
Yoon, Jisun,Kim, Eun Mi,Lee, Mi Young,Jung, Sungsu,Cho, Hyun-Ju,Kim, Yeongho,Choi, Yean Jung,Lee, Eun,Yang, Song-I,Lee, So-Yeon,Lee, Jeong Rim,Yi, Yejin,Hong, Soo-Jong Elsevier 2018 Annals of allergy, asthma, & immunology Vol.121 No.5