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급성 지주막하 출혈에 동반된 관상동맥 연축에 의한 심근경색증 1예
부귀범,박근호,양종태,이동민,장성종,김건영,장경식 조선대학교 2001 The Medical Journal of Chosun University Vol.26 No.1
In many cases, acute cerebrovascular disease is accompanied by abnormal electocardiograms. Also, though rather uncommon, acute myocardial infraction is also seen. The mechanism of its occurance is uncertain but it is thought to be related to coronary artery spasms, an abnormal autonomic nervous system, and a catecholamine increase. A female patient of 34 years of age came to the hospital because of sudden headache accompanied by substernal chest pain. A subarachnoid hemorrhage due to a cerebral aneurysm rupture had occured, and there was ST segment elevation in lead II, III, and aVF of the electrocardiogram. A cardiac enzyme test, an echocardiography, and a coronary angiography were performed, and she was diagnosed to have acute myocardial infarction due to coronary artery spasm. Clipping of the aneurysm was performed. With the use of nitrate and an angiotension converting enzyme inhibitor, the condition of the patient improved.
In vitro anti-skin-aging effects of dried pomegranate concentrated powder
Lee, Dae-Geon,Choi, Beom-Rak,Ku, Sae-Kwang,Kang, Su-Jin,Park, Hye-Rim,Sung, Mi-Sun,Lee, Young-Joon,Park, Ki-Moon Society of Preventive Korean Medicine 2018 대한예방한의학회지 Vol.22 No.2
Purpose : In this study, we intended to observe the anti-wrinkle and moisturizing effects of dried pomegranate juice concentration powder (PCP) using in vitro test. Materials and methods : Antioxidant effects of PCP were determined by free radical scavenging capacity (DPPH assay) and the cytotoxicity of PCP was examined in human keratinocyte (HaCaT) and human primary dermal fibroblast-neonatal (HDF) cells. To investigate the moisturizing effect of PCP, hyaluronan synthesis was examined in HaCaT cells. Activity of procollagen production were assessed in HDF cells and elastase inhibition properties of PCP were evaluated in cell free condition, to determine their anti-wrinkle effects. Metalloproteinase 1 (MMP-1) activity was also assessed following UVB irradiation, in the current in vitro experiment. Results : No PCP treatment related significant cytotoxic effects were demonstrated against to the both HDF and HaCaT cells. PCP showed favorable free radical scavenging activities in dose-dependent manner. In PCP-treated HaCaT cells, hyaluronan synthesis was non-significantly but markedly increased, and pro-collagen productions were significantly increased in HDF cells, at all three different concentrations (0.25, 0.75 and 1 mg/ml), and elastase inhibitory activities were observed by PCP treatment. A significant decrease in UVB-induced MMP-1 activity was also observed in 1 mg/ml PCP-treated HDF cells as compared to those of UVB-exposed cells. Conclusions : Taken together, these results suggest that PCP has favorable antioxidant, anti-wrinkle and moisturizing effects without meaningful cytotoxicity on HDF and HaCaT cell lines.
Lee, Geon-Beom,Kim, Choong-Ki,Park, Jun-Young,Bang, Tewook,Bae, Hagyoul,Kim, Seong-Yeon,Ryu, Seung-Wan,Choi, Yang-Kyu IEEE 2017 IEEE electron device letters Vol.38 No.8
<P>The hot-carrier-induced damage of a gate dielectric was cured with Joule heat generated by the forward current of the p-n junction between the body and drain, for the first time. The effective recovery voltage and pulse timewere optimized to cure the gatedielectricdamage produced by hot-carrier injection. Moreover, iterative damage and cyclic curing were experimentally demonstrated. Throughlow-frequency noise analyses, the degradationand recovery were verified by identifying trap density along the depth of the gate dielectric. Furthermore, this proposed method produced nearly the same recovery characteristics through source-to-body junction current in a short-channel device.</P>
이영환 ( Lee Yeong Hwan ),김용범 ( Kim Yong Beom ),정도영 ( Jeong Do Yeong ),이유경 ( Lee Yu Gyeong ),김건영 ( Kim Geon Yeong ),이준승 ( Lee Jun Seung ),이중건 ( Lee Jung Geon ),최덕례 ( Choe Deog Lye ),박미자 ( Park Mi Ja ),이영 대한신장학회 2001 Kidney Research and Clinical Practice Vol.20 No.6
The incidence of Tuberculosis among the patients with end-stage renal disease(ESRD) has increased up to 16 times of that in the general population. The impairment of the cellular immunity in the ESRD patients may have a role in the pathogenesis. Extrapulmonary tuberculous manifestations such as lymph node, peritoneum, and pleura involvement are more frequent in the ESRD patients than in the general population. However, there has been no case of upper gastrointestinal(UGI) bleeding as a result of a gastric tuberculosis in the ESRD patient on hemodialysis. Here we report an unusual case of a hemodialysis patient with UGI bleeding secondary to a tuberculous gastric ulcer. A 31-year-old female on hemodialysis was admitted with melena. Endoscopy revealed a benign gastric ulcer with a visible bleeding vessel at the base, located in the anterior wall of the antrum. An exploratory laparotomy showed multiple, round, small and yellow nodules on the visceral peritoneum as well as a 1-cm sized gastric ulcer. After gastric resection, a histological examination including peritoneal nodules demonstrated chronic granulomatous inflamation with caseous necrosis and giant cells. The patient has been on antituberculosis medication and followed up in the outpatient department without any event for 8 months.