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김진호,정영헌,조기철,이협희,오광중 부산대학교 환경문제연구소 1998 環境硏究報 Vol.16 No.-
Pyrolysis system will plat a big role on the resource recovery of wastes without secondary pollution problems comparing usual incineration system. Pyrolysis experiments of municipal solid wastes was conducted and the results are as follows. 1) From tile compression test before the pyrolysis, moisture removal was observed from 70% compression and the variation of the removed moisture amount was detected until 80% compression. Over the 80% compression, there was no change. 2) Non-isothermal pyrolysis reaction constant was found out through the experiment. When the increasing rate of temperature varied from 20 to 40 K/min, the activation energy of cellulose and plastic were 100~160 KJ/mol and 192~239KJ/mo1, respectively. The order of reaction was on the range of 1.2~1.8. As the increasing rate of temperature increased, the activation energy was decreased.
승모판 협착증과 동반된 자유롭게 부유하는 좌심방 구형혈전 1례
이정철,김영조,김영진,한승세,이태일,이동협,홍은표,최교원,심봉섭,강승호,신동구,이현우 영남대학교 의과대학 1993 Yeungnam University Journal of Medicine Vol.10 No.1
저자들은 승모판 협착증과 동반된 자유롭고 부유하는 좌심방내의 구형혈전은 1례를 치험하였기에 그 희귀성에 비추어 문헌 고찰과 함께 보고하는바이다. A free-floating ball thrombus in the left atrium is a rare complication of the mitral valvular disease. A 53-year-old man was admitted for pain and paresthesia on both legs. On admission he had auscultatory sign of mitral stenosis and mitral regurgitation, and the roentgenogram of his chest revealed a slight pulmonary venous congestion, enlargement of the pulmonary conus and cardiomegaly. Laboratory findings including complete blood counts, coagulation studies and blood chemistry were normal. An echocardiographic examination revealed a mitral stenosis and a free-floating ball thrombus in the left atrium. We performed the emergent open heat surgery for removal of the ball thrombus and mitral replacement successfully with Duromedics 29 mm valve. The size of thrombus was 39 X 32 X 30 mm.
P173 : Ablation of O-GlcNAc transferase (OGT) gene affects epidermal homeostasis
( Jin Hyup Lee ),( Ki Duck Kim ),( Dae Kyoung Choi ),( Kyung Cheol Sohn ),( Myung Im ),( Young Lee ),( Chang Deok Kim ),( Young Joon Seo ),( Jeung Hoon Lee ) 대한피부과학회 2014 대한피부과학회 학술발표대회집 Vol.66 No.2
Background: O-linked β-N-acetylglucosamine (O-GlcNAc) modification is one of posttranslational modification, emerging as an important regulatory mechanism in various cellular events. The enzyme O-GlcNAc transferase (OGT) catalyzes the transfer of GlcNAc from UDP-GlcNAc to the target protein by O-linkage. Objectives: To investigate whether O-GlcNAc modification affects epidermal homeostasis. Methods: We generated epidermis-specific OGT knockout (KO) mice by crossing K14-Cre and OGTfl/fl mice. Results: When OGT gene was ablated in epidermis using basal layer specific K14-Cre system, newborn mice usually die before 10 days. Generally, epidermal thickness was decreased in OGT KO mice, however the expression of several differentiation markers such as involucrin and loricrin looked like unaffected. In skin permeability test using toluidine blue staining, OGT KO mice showed earlier establishment of skin barrier at E17.5 d compared to normal mice. Conclusion: These results suggest that O-GlcNAcylation is a dynamic regulatory mechanism for maintenance of epidermal integrity.
P118 Efficacy of microneedle patches containing salicylic acid or EGCG on acne vulgaris
( Jin-hyup Lee ),( Hae-eul Lee ),( Young Lee ),( Young-joon Seo ),( Jeung-hoon Lee ),( Jin-hwa Kim ),( Myung Im ) 대한피부과학회 2016 대한피부과학회 학술발표대회집 Vol.68 No.2
<div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div> Background: Dissolving microneedle technology is an emerging system which makes it easy to deliver medications through skin barrier. It is expected to be effective on acne lesions using a microneedle system coated with a known topical acne medications. Objectives: To evaluate the efficacy and safety of salicylic acid (SA) and epigallocatechin-3-gallate (EGCG) containing microneedle patches on facial acne lesions Methods: A prospective, split-face study was performed for 4 weeks. A total twenty adult acne patients were conducted to assess the treatments. The participants applied the different types of patches (SA, EGCG and control) on each quadrant area of the face every other day. Clinical improvement was assessed by lesions counting using photographs, investigator grading analysis score, sebum excretion, erythema index, and patients’ subjective assessment of satisfaction. Results: At week 4, both SA and EGCG containing microneedle patch showed clinical improvement on each assessments. SA had a superior efficacy than EGCG and control patches, especially on lesions counting of non-inflammatory acne lesions which were showed a statistically significant difference. No adverse effects were noticed. Conclusion: Almost none statistically significant difference was seen among SA, EGCG and control microneedle patches, except for non-inflammatory acne lesions. But still SA and EGCG containing microneedle were shown to be clinically more efficacious than controls.
이관호,한승세,이동협,김성숙,이현우,이정철,최교원,정진홍,서정일 영남대학교 의과대학 1993 Yeungnam University Journal of Medicine Vol.10 No.2
전형 중심성 기관지 유암종과 비전형 기관지유암종을 기관지내시경하 생검 및 전산화 단층촬영하 생검으로 확진했으며 근치적 치료로 폐절제술을 시행한 치험 2례를 문헌 고찰과 아울러 보고하는 바이다. Bronchial carcinoid tumor was a low grade malignant and it was regarded as predictable clinical course and good survivality after surgical resection. But despite of its low grade malignant potentiality, bronchial carcinoid tumor was clearly capable of metastasizing and causing death. We present 2 cases of bronchial carcinoid tumors. One of them was typical carcinoid tumor in 44 year-old female and another was atypical carcinoid tumor in 53 year-old male patient. Currative therapeutic procedure was performed by lobectomy and wedge resection.