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이정용(Jung Young Lee),서재일(Jae Il Suh),임철완(Chull Wan Ihm) 대한피부과학회 1988 대한피부과학회지 Vol.26 No.1
Two cases of neurofibrossrcoma involving cutaneous tissues of the patients with multiple neurofibromatosis were presented. One case, 49-year-old man, showed highly malignant histopathological feature with lethal outcome and the other case, 56-year-old man, showed less malignant histopathology with good recovery from local excision.
전두부 탈모증의 Methyl - Prednisolone Pulse Therapy 효과
이정용(Jung Young Lee),서재일(Jae Il Suh),임철완(Chull Wan Ihm) 대한피부과학회 1988 대한피부과학회지 Vol.26 No.3
Authors tried methyl-prednisolone pulse therapy in 12 cases of severe cases of alopecia areats(eight cases of alopecia totalis, two cases of alopecia universalis, and two cases of alopecia subtotalis) by the assumption that administration of corticosteroid by pulse method minimize its side effects and maximize its therapeutic effect. Authors followed the courses of therapeutic result of the 12 cases for at least one year after finishing t.he treatment. The results were as follows : 1. The overall evaluation of the treatment showed four cases with excellent response, one case with good response, one case with disappointed response and six cases with no response. 2. The responses of the therapy appeared to be dependent on the duration of the alopecia areata ; the better the response is, the shorter the duration of the alopecia is. Most cases shorter than 6 months duration of alopecia showed excellent response. 3. Side effects of the treatment were as follows ; facial flushing(12/12), intermenstrual spotting(4/7), weight gain(4/12), moon face(3/12), acneiform eruption(1/12), exacerbation of hypertension (1/12). Those side effects did not keep any patient from the planned treatment.
저혈당성 경련으로 내원한 환자에서 진단된 Silver-Russell 증후군 1례
이정용(Jung Yong Lee)ㆍ김영아(Young A Kim)ㆍ이경연(Kyung Yeon Lee)ㆍ오기원(Ki Won Oh)ㆍ김자형(Ja Hyeong Kim)ㆍ김준성(Joon Sung Kim)ㆍ정진영(Jin Young Jeong)ㆍ박상규(Sang Kyu Park) 대한소아신경학회 2010 대한소아신경학회지 Vol.18 No.1
저자들은 저혈당성 경련을 주소로 내원한 4세 여아에서 자궁 내 성장 지연, 출생 후 지속되는 저신장과 저체중, 몸에 비해 상대적으로 큰 머리, 신체의좌우 비대칭, 특징적인 얼굴 모양을 보인 Silver-Russell 증후군 1례를 경험하였기에 문헌 고찰과함께 보고하는 바이다. The Silver-Russell syndrome(SRS) is a clinically heterogeneous syndrome characterized by intrauterine and postnatal growth retardation with spared cranial growth, characteristic facial features, and body asymmetry. Although mild to moderate hypoglycemic symptoms occasionally appear in children with SRS especially those who are not fed frequently and regularly, hypoglycemic seizures rarely occur. We report a rare case of SRS which was diagnosed in a 4-year-old female who admitted with hypoglycemic seizure. The patient showed the haracteristic features of SRS. Endocrinologic studies were normal except for partial growth hormone insufficiency. To prevent seizures and chronic neurologic deficits in children with SRS, the early recognition and appropriate management of hypoglycemia is critical.
경피증 환자에서 D-Penicillamine 치료중 발생한 IgA 신증
이정용 ( Jung Yong Lee ),김응주 ( Eung Joo Kim ),이영호 ( Young Ho Lee ),지종대 ( Jong Dae Ji ),원남희 ( Nam Hee Won ),송관규 ( Gwan Gyu Song ) 대한류마티스학회 1997 대한류마티스학회지 Vol.4 No.1
IgA nephropathy can occur rarely as a complication of D-penicillamine treatment, but it is exact pathogenesis remains unclear. If a patients has gross or microscopic hematuria during D-penicillamine treatment, D-penicillamine induced IgA nephropathy should be suspected as a cause of hematuria. In those cases, renal biopsy should be taken for diagnosis and proper management. We experienced a case of IgA nephropathy confirmed by renal biopsy in a 39-years-old female patient with scleroderma during D-penicillamine therapy and report this case with a review of literature.
유전체발현 변화 분석을 통한 랫트 간조직에서 다환방향족탄화수소의 위해성을 예측할 수 있는 특이생체지표군의 확립
정광화(Kwang Hwa Jung),노지헌(Ji Heon Noh),은정우(Jung Woo Eun),김정규(Jeong Kyu Kim),배현진(Hyun Jin Bae),사홍건(Hong jian Xie),장영균(Young Gyoon Chang),김민규(Min Gyu Kim),박원상(Won Sang Park),이정용(Jung Young Lee),남석우(Suk Wo 한국환경독성학회 2011 한국독성학회 심포지움 및 학술발표회 Vol.2011 No.10
유도결합 Cl₂ 및 HBr / Cl₂ 플라즈마를 이용한 STI용 실리콘 Shallow trench 식각공정에 관한 연구
이주훈(Ju-Hoon Lee),이영준(Young-Jun Lee),김현수(Hyeon-Soo Kim),이주욱(Ju-Wook Lee),이정용(Jung-Yong Lee),염근영(Geun-Young Yeom) 한국진공학회(ASCT) 1997 Applied Science and Convergence Technology Vol.6 No.3
고밀도 유도결합 Cl₂ 및 HBr/Cl₂ 플라즈마를 이용하여 차세대 반도체 집적회로에 사용가능한 STI(Shallow Trench Isolation) 구조에서 trench 식각시 trench etch profile 및 격자손상에 영향을 미치는 공정변수의 효과에 대하여 연구하였다. 식각결과 Cl₂만을 사용한 경우에는 trench 식각공정 동안 화학적 측면식각의 증가로 인하여 등방성 식각이 얻어지고 이는 유도입력 전력이 증가하고 바이어스 전압이 감소함에 따라 이의 경향이 증가하였다. 측면식각의 정도는 Cl₂에 N₂ 및 O₂의 첨가에 따라 감소하여 HBr을 사용한 경우에 있어서는 Br 라디칼이 Cl 라디칼에 비하여 자발적인 실리콘 식각의 민감도가 감소하여 positive angle의 식각형상이 얻어졌으며 HBr내에 Cl₂의 증가에 따라 이방성 식각이 얻어졌다. 물리적인 격자손상을 투과전자현미경으로 관찰한 결과 Cl₂/N₂ 및 HBr을 함유한 식각가스를 사용한 경우에 trench 표면에서 결함이 관찰되었다. Silicon shallow trenches applied to the STI (Shallow Trench Isolation) of integrated circuits were etched using inductively coupled Cl₂ and HBr/Cl₂ plasmas and the effects of process parameters on the etch profiles of silicon trenches and the physical damages on the trench sidewall and bottom were investigated. The increase of inductive power and bias voltage in Cl₂ and HBr/Cl₂ plasmas increased polysilicon etch rates in general, but reduced the etch selectivities over nitride. In case of Cl₂ plasma, low inductive power and high bias voltage showed an anisotropic trench etch profile, and also the addition of oxygen or nitrogen to chlorine increased the etch anisotropy. The use of pure HBr showed a positively angled etch profile and the addition of Cl₂ to HBr improved the etch profile more anisotropically. HRTEM study showed physical defects formed on the silicon trench surfaces etched in Cl₂/N₂ or HBr/Cl₂ plasmas.
위장관 간질성 종양의 Epidermal Growth Factor Receptor 유전자 돌연변이 연구
유남진,이종우,송영화,전해명,남석우,김수영,박원상,이정용,이석형,Yoo Nam Jin,Lee Jong Woo,Soung Young Hwa,Jeon Hae Myung,Nam Suk Woo,Kim Su Young,Park Won Sang,Lee Jung Young,Lee Sug Hyung 대한위암학회 2004 대한위암학회지 Vol.4 No.4
Purpose: Most gastrointestinal stromal tumors (GISTs) have gain-of-function mutations of the KIT or the platelet-derived growth factor receptor alpha (PDGFRA) genes, but approximately $10\%$ of the GISTs are wild types for both the KIT and the PDGFRA genes. The purpose of this study was to investigate the possibility that epidermal growth factor receptor (EGFR) gene mutation might be responsible for the pathogenesis of GIST. Materials and Methods: We analyzed the EGFR gene in 60 GISTs for the detection of somatic mutations by using the polymerase chain reaction (PCR), the single strand conformation polymorphism (SSCP), and DNA sequencing in exon 18, 19, and 21 encoding the kinase domain. Results: The SSCP analysis revealed no evidence of EGFR mutations in exon 18, 19, and 21 in GISTs. Conclusion: The data indicate that the EGFR gene may not be mutated in human GIST and suggest that therapies targeting the mutated EGFR gene products might not be useful in the treatment of GISTs.
Interleukin-1$\beta$ 및 Interleukin-1 Receptor Antagonist의 유전적 다형성과 한국인 위암과의 연관 관계
박직영,조용구,김창재,박용규,김영실,박조현,이석형,유남진,이정용,박원상,Park Jik Young,Cho Young Gu,Kim Chang Jae,Park Yong Kyu,Kim Young Sil,Park Cho Hyun,Lee Sug Hyung,Yoo Nam Jin,Lee Jung Young,Park Won Sang 대한위암학회 2002 대한위암학회지 Vol.2 No.3
Purpose: Interleukin 1$\beta$ (IL-1$\beta$) polymorphisms are associated with hypochlorhydria, atrophic gastritis, and increased risk of gastric cancer in Caucasians. We tried to determine whether the IL-1.. and IL-1 receptor antagonist (IL-1 RN) genetic polymorphisms contribute to the development of gastric cancer and the specific type of gastritis in Korean. Materials and Methods: The study population was comprised of 128 gastric cancer patients with histologically proven carcinoma and 63 normal healthy individuals. Sixty-eight carcinomas were of intestinal-type and sixty tumors were of diffuse-type. No patient had a familial gastric cancer history. The 511 bp and 31 bp polymorphisms in the IL-1.. were genotyped by polymerase chain reaction (PCR)-restriction fragment length polymorphism. The polymorphism of the IL-1 RN was analyzed with variable number tandem repeat after PCR. Results: The genotype of 511C/-31T of IL-1$\beta$ and allele 1 of IL-1 RN was dominant in the present subjects. The allelic frequencies of the C allele IL-1$\beta$, which is a high risk genotype for gastric cancer, were 0.551 and 0.429 in gastric cancer and normal controls, respectively. Statistically, significant difference in allelic frequencies of three polymorphic sites between gastric cancer patients and normal controls, and between intestinal-type and diffuse-type was not observed. Conclusions: These results suggest that the polymorphisms of IL-1$\beta$ and IL-1 RN may not contribute to the development of Korean gastric caner and that other endogenous or exogenous factors will be important for gastric carcinogenesis.