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박현철,박현식,안상천,조상현,김상수,장진,Park, Hyun-Chul,Park, Hyun-Sik,Ahn, Sang-Cheon,Cho, Sang-Hyun,Kim, Sang-Soo,Chang, Jin The Korean Society for Microsurgery 2011 Archives of reconstructive microsurgery Vol.20 No.1
Purpose: We compared wound healing between the conventional tie-over dressing and silicone sheeting after skin grafting in patients with skin defects. Materials and Methods: Of a total of 30 cases of skin defects, 15 underwent conventional tie-over dressing and the remaining 15 underwent silicone sheeting skin grafting, we compared hematoma formation and infection status between the 2 techniques 1 and 2 weeks after operation Results: Hematoma was not observed in all cases. The wound infection rate decreased in silicone group. Conclusions: Silicone sheeting skin graft may be helpful in reducing wound infection.
HaCaT Cell에서 황기 에탄올 추출물의 Aquaporin-3 발현 효과
박현철(Hyun-Chul Park),김희택(Hee-Taek Kim),하헌용(Hun-Young Ha),이평재(Pyeong-Jae Lee),윤경섭(Kyung-Sup Yoon) 한국생물공학회 2013 KSBB Journal Vol.28 No.6
Astragalus membranaceus Bunge is used in herbal medicine in Eastern Asian countries including Korea. In this study, we assessed the effects of A. membranaceus extract (AM) on the aquaporin-3 (AQP3) protein expression in HaCaT cells. AM did not affect viability of HaCaT cells. AQP3 expression and cell migration seem to be maximal at 100 μg/mL concentration. Epidermal growth factor receptor (EGFR) kinase inhibitor, PD153035, blocked AM-induced AQP3 expression and cell migration. In addition, an 80% ethanol extracts of herbal prescription, SinhyoTakleesan (ST), which is composed of A. membranaceus, Angelicae gigantis, Glycyrrhiza glabra Linne, and Lonicera japonica Flos also induced AQP3 expression at 20 μg/mL in HaCaT cells. Collectively, these results suggest that AM induce AQP3 expression via EGFR pathway.
박현철 ( Hyun Chul Park ),김영훈 ( Young Hoon Kim ),김정은 ( Jeong Eun Kim ),고주연 ( Joo Yeon Ko ),남궁선주 ( Sun Ju Nam Goung ),이철민 ( Cheol Min Lee ),김윤신 ( Yoon Shin Kim ),노영석 ( Young Suck Ro ) 대한소아알레르기호흡기학회 1991 소아알레르기 및 호흡기학회지 Vol.1 No.3
Purpose: High level of indoor air pollutant may cause aggravation of atopic diseases long with various allergic respiratory diseases especially in people who spend mostly of their lives indoors. The aim of this study was to evaluate the effect of air purifier on the reduction of relevant hazards in indoors and the improvement of atopic dermatitis (AD). Methods: A total of 24 families, consisted of 18 AD families and 6 normal control families, were enrolled in this study. We examined air quality and AD severity before the installation of air purifiers and after twenty-four weeeks. The assessment of air quality included fine particles (particulate matter, PM2.5 and PM10), gaseous contaminants (CO, CO2, volatile organic compounds [VOCs], formaldehyde, NO2) and density of offloating microorganisms. Severity of AD was assessed by SCORing atopic dermatitis (SCORAD) index and transepidermal water loss (TEWL). Results: At the end of study, particular air pollutants and VOCs of gaseous air pollutants decreased in both groups (P<0.01). In AD group, SCORAD index decreased from 23.45±4.34 to 15.42±6.53 (.18.5%) and TEWL decreased from 33.78±5.16 to 26.89±5.66 (.18.7%) (P<0.01 and P<0.01, respectively). However, the value of total immunoglobulin E and eosinophil did not show significant changes in both groups compared with baseline. Conclusion: These results suggested that air purifier may improve severity of AD by reducing air pollutants like fine particles and VOCs. Our preliminary study could provide a basis for using air purifier to prevent aggravation of AD. (Allergy Asthma Respir Dis 2013;1:248-256)
박현철(Hyun Chul Park),박종재(Jong Jae Park),손민수(Min Su Son),이성광(Sung Kwang Lee),김주현(Ju Hyun Kim),박동균(Dong Kyun Park),김유경(Yu Kyeong Kim),최덕주(Deok Ju Choi),김선숙(Seon Sook Kim),박성혜(Sung Hye Park) 대한소화기학회 1997 대한소화기학회지 Vol.29 No.2
Collagenous eolitis is an uncommon condition of unknown etiology, charactcrized by chronic watery diarrbea and thickening of the subepithelial collagen band with chronic inflammation. We report two cases of collagenous colitis in a 23-year-old male and 35-year-old female who complain of chronic diarrhea and weight loss. Laboratory and radialogie studies were not remarkable. Colonoscopic examination showed no gross abnarmality but colonoscopic mucosal biopsy showed thickening of subepithelial collagen band and chmnic inflammation. (Korean J Gastroenterol 1997; 29: 252 - 257)
박현철(Hyun Chul Park),문기찬(Kee Chan Moon),김수남(Soo Nam Kim) 대한피부과학회 1988 大韓皮膚科學會誌 Vol.26 No.5
The present study was carried out to find a simple and safe in. vitro test for phtotoxic drugs. Authors selected two strains of Salmonella typhimurium(TA98 and TA102) which have been used in Ames test for the detsction of mutagenecity af various chemical substances. Both strains are genuine products of genetic enzineering. The etrain TA98 should be highly vulnerable to ultraviolet radition because it lacks normal I)NA excision repair gene. The strain TA102 was chosen as control since it maintained the DNA repair gene. These strains were subjected to increasing dosea of UVA with or without pretreatment of 8 methoxypsoralsn(8-MOP) which is a prototype of photatoxic druge. The authors made use of a perforated stain-less steel template which provided a simple and eosy monitoring of ultraviolet irradiation effects i.e. clear zones due to inhibition of the atrains could be determined. By using this methad, the authors acquired the following results .' I. 8-MOP alone exerted no inhibition on both strains at concentration upto 100mg /ml. 2. UVA irradiation alone showed no growth inhibition at dose upto 5J/cm. 3. UVA irradiation after pretreatment with 8 MOP resulted varying growth inhibition in proportion to irradiation doses. 4. Authors found a suitable concentration of 8-MOP for this test is 10pg/ml. With this ccncentrstion, minimal phatatoxic dose of UVA were O.l J/cm for the strain TA98 and 1.0J/cm for the strain TA102 respectively.
박현철 ( Hyun Chul Park ),오영재 ( Young Jae Oh ),노영석 ( Young Suck Ro ),고주연 ( Joo Yeon Ko ) 대한피부과학회 2012 대한피부과학회지 Vol.50 No.3
The proliferative nodules within a giant congenital melanocytic nevus (GCMN) are generally benign and may regress. However, atypical features cause great interest in dermatopathology. Especially, in neonate proliferative nodules with bleeding, ulceration on GCMN makes it difficult to differentiate the nodules from congenital malignant melanoma. Herein, we describe an interesting case of proliferative nodules in a GCMN of a newborn, which has not been previously reported in Korea. (Korean J Dermatol 2012;50(3):243~247)
박현철(Hyun Chul Park),문기찬(Kee Chan Moon),김수남(Soo Nam Kim) 대한피부과학회 1988 대한피부과학회지 Vol.26 No.5
A 21-year-old male suffered from generalized anhidrosis and heat intolerance for about 15 years. Other clinical features included multiple angiokeratoma on the back, scrotum and extremities, together with ocular involvement. The electronmicroscopic studies of the skin demonstrated laminated intracytoplamic inclusions in the endothelial cells, pericytes of dermal vessels, fibroblasts and eccrine glandular cells. a Galactosidase assay of leukocytes from the patient and his uncle showed nearly absence of the activity,
박현철(Hyun Chul Park) 한국지방자치학회 2001 한국지방자치학회보 Vol.13 No.2
The association of officials at office has been establishing and operating under the law of the association of officials executed from Jan. 1, 1999. At present, the association of official has been doing at 170 offices nationally. It is divided into the two views; one is the view under the law of labor-company conference which guarantee the officials` participation and another is one under the low of solidarity right to establish the official association. It would be decided in accordance with the purpose and faculty of the law. I am trying to see the association of official as a former step to keep the basic right for the labor of official which has been accepted in a way of the few of solidarity right that is permitted as the law of labor-company conference. This study is on (1) The fact of the labor unions of our official and the security scope of basic right for the labor generally, and also the security of basic right for the labor to the officials in America, England, French and Germany. (2) Grasping the general problems of the association of officials on the law and draw the point at issue, and (3) Suggesting the remedy for the association of officials at office.