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( Yulhee Kim ),( Jisun Yoon ),( Eun-so Lee ),( You Chan Kim ) 대한피부과학회 2020 대한피부과학회 학술발표대회집 Vol.72 No.1
Background: Psoriasis is a chronic inflammatory skin disorder primarily affecting the epidermis. Patients with moderate-to-severe psoriasis have been treated with oral medications including methotrexate and cyclosporine. Nowadays, targeted monoclonal antibodies showed evident effect on psoriasis, but little is known about pathological and immunohistochemical alterations in psoriasis treated with biologics. Objectives: We compared the pathologic and immunohistochemical changes between patients with psoriasis, treated with biologics and oral medications. Methods: Skin samples from 10 patients with psoriasis treated with biologics and 10 patients with psoriasis treated with oral medication were obtained before and after treatment. We analyzed histological and immunohistochemical changes of skin samples after treatment. Results: The histological changes between baseline and after treatment showed that most of classic histological features of psoriasis such as parakeratosis or regular acanthosis were almost cleared in both groups, particularly in biologics group. The results of qualitative and quantitative analysis of immunohistochemical stains showed significant reduction of cytokines, especially for IL-23, IL-36r, and IL-10 cytokines in biologics group. Conclusion: In psoriasis, biologics could improve pathological and immunohistological features in psoriasis in addition to improvement of severity and symptoms of psoriasis than oral medication.
이나래(Lee NaRae),유재홍(Ryu JaeHong),양율희(Yang YulHee),김판기(Kim PanGyi) 한국보건복지학회 1998 보건과 복지 Vol.1 No.-
Bisphenol A is used in the manufacture of epoxy resin, polycarbonate, and corrosion-resistant unsaturated polyester-styrene resins required for food packaging materials in industrial processing. Some reports indicated the possibility of harmful effects on rats. In this study was carried out to examine the effects of second generations which was exposed maternally. And the detennination of Bisphenol A in blood according to the OSHA High Performance Liquid Chromatography(HPLC) guideline. The method involved blood extraction using methylene chloride. And it was evaluated developmental and teratogenic effects in pregnant rats and second generations.<br/> The results obtained were as follows;<br/> There was a significant increase in the body weights and treated groups Fl female in liver, spleen, kidney but according to dose-response. FI female rat's relative body weight and absolute body weight are not different.<br/> There was a significant increase liver, spleen, kidney organ weight and reproductive organ weight epididymis, prostate gland in FI male rats.<br/> Estrus was cycled earlyer than that of control group.<br/> Identification and quantitation of Bisphenol A in the blood was detected in 2O,OOO㎍/kg group about 1㎍/ml, 2OO㎍/kg group about O.9㎍/ml.<br/> From those results, it could be concluded that the effect of pregnant rat and second gene<br/> ration(Fl) by Bisphenol A treatment during lactational period were estrogenic and Blsphenol<br/> A was remained in serum at low level.
Differential diagnosis of childhood hypopigmentation: A retrospective study of 1,783 patients
( Hyun Jeong Ju ),( Sooyeon Choi ),( Seon Bok Lee ),( Yulhee Kim ),( Sang Ho Oh ),( Jeong Hyun Shin ),( Hee Young Kang ),( Jung Min Bae ) 대한피부과학회 2020 대한피부과학회 학술발표대회집 Vol.72 No.1
Background: Children often develop hypopigmented spots, however, the exact prevalence of hypopigmentation disorders and vitiligo is unknown in the pediatric population. Objectives: To investigate the prevalence and clinical features of various hypopigmentation disorders in childhood Methods: A multicenter, retrospective study in four tertiary referral hospitals was conducted. In total, 1,783 patients under 12 years of age who were examined at the Vitiligo and Hypopigmentation Disorder Clinic at each hospital from January 2015 to June 2020 were included. The electronic medical records, pathology reports, and clinical photographs were reviewed. Results: Overall, the most common hypopigmentation disorders in childhood was pityriasis alba (34.1%), followed by vitiligo (26.5%), nevus depigmentosus (21.5%), postinflammatory hypopigmentation (5.2%), lichen striatus (3.6%), tinea versicolor (2.0%), nevus anemicus (1.2%), tuberous sclerosis complex (1.1%), and others. According to the disease onset, nevus depigmentosus represented the most common (58%) cause of hypopigmentation in the first year of life. Among the age group 1-10, pityriasis alba (37%) and vitiligo (35%) were the most common. Conclusion: Various disorders can cause childhood hypopigmentation. A clinical approach based on the age of onset, site of involvement, the extent of the lesion, and the natural course of the lesion would be necessary.