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해바라기 뿌리-조직 바이오센서에 의한 과산화수소의 정량에 관한 연구
박현영 ( Hyun Young Park ),권효식 ( Hyo Shik Kwon ) 충북대학교 과학교육연구소 2011 과학교육연구논총 Vol.26 No.2
The response characteristics of the new biosensor developed by the co-immobilization of root tissue of sunflower and ferrocene in a carbon paste matrix for the amperometric determination of hydrogen peroxide were evaluated. In the range of electrode potential examined(-0.35 ~ -0.10V vs. Ag/AgCl), it responded in the wide range of pH and its biocatalytic stability was superior. Also, it`s detection limit was 2.5×10-6M (S/N=3) and it had relatively good selectivity to the materials considered to disturb the response. The result of this biosensor study using root tissue of sunflower can be utilized as the basic information for the determination of hydrogen peroxide.
박현영 ( Hyeon Young Park ),윤숙정 ( Sook Jung Yun ),이지범 ( Jee Bum Lee ),김성진 ( Seong Jin Kim ),이승철 ( Seung Chul Lee ),원영호 ( Young Ho Won ) 대한피부과학회 2011 대한피부과학회지 Vol.49 No.8
Skin metastases from internal malignancies are rare and have been reported in 0.7∼9% of malignancies, most commonly from carcinomas of the breast, lung, colon, kidney, stomach, and melanoma. The common clinical manifestations of cutaneous metastases are nodular, inflammatory and sclerodermoid metastatic lesions. Other manifestations of skin metastasis include neoplastic alopecia, acute dermatitis like, en cuirasse, carcinoma erysipelatoides, carcinoma telangictatoides, and zosteriform. Zosteriform cutaneous metastases are very rare and may demonstrate vesicobullous, papular, and nodular lesions. In the previous reports, zosteriform metastasis was associated with melanoma, lymphoma, breast cancer, squamous cell carcinoma, colorectal carcinoma, respiratory carcinoma, and urinary tumors. We report the first case of a zosteriform cutaneous metastasis from a gastric adenocarcinoma in the Korean literature. (Korean J Dermatol 2011;49(8):738∼742)
박현영 ( Hyeon Young Park ),Yeon Zu Kim,Seong Jin Kim 한국피부장벽학회 2009 한국피부장벽학회지 Vol.11 No.2
Soap and cleanser removes dirts, sweat, microorganisms and exfoliated corneocytes from upper most part of the skin. It was known that long term exposure of water or surfactant irritation induces skin barrier damage. However there was not sufficient data about very early stage of skin change after applying soap and cleansing foam. In this study we measured with the skin pH, transepidermal water loss (TEWL) and capacitance to see any dynamic changes within one hour after single exposure of soap and cleansing form. A total 23 volunteers were measured with skin bioengineering devices at both face and hand dorsum before and after washing until reach to one hour (before, immediately after, 15min, 30min, 60min). The skin pH was increased immediately but soon returned to the initial level, yet the highest pH following washing stays within pH 6 in both areas. Similarly the level of TEWL and capacitance also showed same tendency or patterns as shown as the pH change. Though being exposed to the surfactant is responsible for skin barrier damage, present results suggested that normal skin condition was not affected by soap and cleansing foam when given at single exposure mode. Thus, either repeat or intense exposure of soap and cleansing foam toward weakened skin area is important for barrier damage in the real life condition.
임신 중기 양수천자 3,503예에 대한 세포 유전학적 분석: CUMC 경험 (2)
박인양 ( Park In Yang ),신종철 ( Sin Jong Cheol ),김석찬 ( Kim Seog Chan ),안현영 ( An Hyeon Yeong ),문희봉 ( Mun Hui Bong ),박철훈 ( Park Cheol Hun ),이희중 ( Lee Hui Jung ),이영 ( Lee Yeong ),나종구 ( Na Jong Gu ),김수평 ( Kim 대한산부인과학회 2004 Obstetrics & Gynecology Science Vol.47 No.1
Objective : To analyze chromosomal abnormalities according to patient`s age and indications of patients in midtrimester amniocentesis for prenatal genetic diagnosis. Methods : We retrospectively analyzed 3,503 cases of midtrimester prenatal genetic amnioc
박현영 ( Hyeon Young Park ),윤숙정 ( Sook Jung Yun ),이지범 ( Jee Bum Lee ),김성진 ( Seong Jin Kim ),이승철 ( Seung Chul Lee ),원영호 ( Young Ho Won ) 대한피부과학회 2011 대한피부과학회지 Vol.49 No.10
Lymphomatoid papulosis is a lymphoproliferative disorder which is characterized by chronic recurrent self-healing papules or nodules with histologic features suggestive of a malignant lymphoma. An association of lymphomatoid papulosis with other lymphomas including mycosis fungoides, Hodgkin`s disease and anaplastic large cell lymphoma is present in approximately 10 to 20% of cases. We herein report a case of lymphomatoid papulosis developed after remission of Hodgkin`s disease. (Korean J Dermatol 2011;49(10):927∼930)
다발성 골수종이 동반된 정상 지질단백혈증을 보인 광범위 편평 황색종
박현영 ( Hyeon Young Park ),이제중 ( Je Jung Lee ),이지범 ( Jee Bum Lee ),김성진 ( Seong Jin Kim ),이승철 ( Seung Chul Lee ),원영호 ( Young Ho Won ),윤숙정 ( Sook Jung Yun ) 대한피부과학회 2011 대한피부과학회지 Vol.49 No.6
Diffuse plane xanthoma (DPX) is a rare variant of plane xanthoma and DPX appears as yellow flat patches or slightly elevated plaques on the eyelids, neck, upper trunk and flexural areas. Lynch and Winkelmann divided it into two groups according to the presence of hyperlipidemia. Diffuse normolipemic plane xanthoma is often associated with reticuloendothelial proliferative disease such as multiple myeloma and monoclonal gammopathy with unknown significance (MGUS). We report here on a case of diffuse normolipemic plane xanthoma associated with multiple myeloma in a 59 year-old man. (Korean J Dermatol 2011;49(6):516∼519)
편마비 환자의 양측 상완에 발생한 국소형 물집유사천포창
박현영 ( Hyeon Young Park ),윤숙정 ( Sook Jung Yun ),김성진 ( Seong Jin Kim ),이승철 ( Seung Chul Lee ),원영호 ( Young Ho Won ),이지범 ( Jee Bum Lee ) 대한피부과학회 2011 대한피부과학회지 Vol.49 No.5
Bullous pemphigoid is a chronic autoimmune blistering disease characterized clinically by tense bullae that develop on normal or erythematous skin. Bullous pemphigoid is associated with autoantibodies to two hemidesmosomal proteins, BPAG1 (230 kD) and BPAG2 (180 kD). The localized form of BP is an unusual variant that occurs in 5∼30% of the patients. A 58-year-old man who had been suffering from right hemiplegia since 2006, presented with multiple tense bullae localized on both arms and hands. Direct immunofluorescence test showed linear deposition of IgG and C3 along the basement membrane zone. The antibodies against the recombinant NC16a-domain of BP180 were positive by ELISA and immunoblotting using epidermal extract of normal human foreskin demonstrated that the patient`s serum reacted with only BP180 antigen. Here, we report a case of localized bullous pemphigoid on both upper extremities in a hemiplegic patient predominantly on the opposite side to the hemiplegia. (Korean J Dermatol 2011;49(5):444∼447)