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Omeprazole 투여시 위산분비 억제능에 대한 CYP2C19 의 영향
박수헌(Soo Heon Park),김종원(Jong Won Kim),이수연(Soo Youn Lee),최명규(Myung Gyu Choi),김재광(Jae Kwang Kim),정인식(In Sik Chung),정규원(Gyu Won Chung),선희식(Hee Sik Sun),박두호(Doo Ho Park) 대한소화기학회 2001 대한소화기학회지 Vol.38 No.6
Background/Aims: CYP2C19 has an important role in the catabolism of several proton pump inhibitors. However, the relative contribution of CYP2C19-mediated metabolism varies among the different proton pump inhibitors. We investigate to determine the effect of CYP2C19 genotype status on intragastric pH during dosing with omeprazole. Methods: The subjects were 16 healthy volunteers. Their CYP2C19 genotype status was determined by a polymerase chain reaction-restriction fragment length polymorphism method. Twenty-four-hour monitoring of intragastric acidity were performed on the day without medication and day 4 after omeprazole administration. Results: A single dose of omeprazole significantly decreased 24 hour intragastric acidity (1.7±0.3 vs. 5.1±0.4). Subjects were divided into three groups on the basis of their CYP2C19 genotype status: homozygous extensive metabolizers (Ho-EMs, n=5), heterozygous extensive metabolizers (Ht-EMs, n=6), and poor metabolizers (PMs, n=5). Median 24 hour intragastric pH in the Ho-EM group was 3.1 compared with 5.5 in Ht-EM group and 5.9 in PM group(P<0.05). The median pH during omeprazole administration was influenced by CYP2C19 genotype. On the other hand, the Helicobacter pylori infection did not influence the median intragastric pH during omeprazole administration (p= NS). Conclusions: The effects of omeprazole on intragastric acidity is influenced by the CYP2C19 polymorphism. (Korean J Gastroenterol 2001;38:399-404)
박정일,이석규,이호균,박준호 영남대학교 공업기술연구소 2000 工業技術硏究所論文集 Vol.28 No.1
This paper describes the development of ultrasonic generator to enhance the combustion efficiency of the domestic boiler based on the cavitation property of ultrasonic wave. The following procedure shows the proposed energy-saving-precess of the boiler. (1) vibrate the BLT(Bolted Langevin Transducer) type ultrasonic vibrator. (2) amplify the vibrating energy using resonance principle through the designed hem installed before the injection nozzle. The proposed ultrasonic device is designed to produce smaller fuel particles to be mixed homogeneously with air, which finally reduces the fuel consumption of the boiler.
GO에 의해 유도된 培養 脊髓感覺神經細胞 독성에 대한 鎭肝熄風湯의 방어효과
박광수,이호승,김인수,강길성,김인규,김인섭,류도곤 한국전통의학연구소 2003 한국전통의학지 Vol.13 No.1
To evaluate the effect of Jingansikpungtang water extract on cultured mouse spinal sensory neuron which was inhibited by glucose oxidase(GO)-induced cytotoxicity, NR assay and TBARS assay for lipid peroxidation were carried out after the cultured mouse spinal sensory neuron were pre-incubated with various concentrations of Jingansikpungtang water extract for 3 hours prior to exposure of GO. GO, a oxygen radical, decreased the survival rate of the cultured mouse spinal sensory neuron cells on NR assay. Jingansikpungtang water extract have efficacy of decreasing lipid peroxidation increasing by GO in cultured mouse spinal sensory neuron. From above the results, it is concluded that Jingansikpungtang has marked efficacy as a treatment for the damages caused in the GO-mediated oxidative process.
Analysis of Genetic Diversity of Korean Wheat Cultivars Using Microsatellite DNA Polymorphisms
Park,Yong-Jin,Cho,Gyu-Taek,Ma,Kyung-Ho,Lee,Sok-Young,Lee,Jung-Ro,Kim,Young-Chang,Cho,Eun-Gi,Kim Chang-Yung,Nam,Jung-Hyun,Rao,V,Ramanatha,Kang,Hee-Kyoung 한국자원식물학회 2004 Plant Resources Vol.7 No.2
Genetic background and phylogenetic relationships among 20 Korean wheat cultivars were assessed using microsatellites after amplifying with 13 SSR primer pairs. Average allele number per primer pair was 3.36. Genetic similarities for every pair of cultivars ranged from 0.42 to 0.97, with 0.69 of overall average. Korean cultivars were divided into two major groups based on microsatellite DNA polymorphisms. Group I consisted of relatively old cultivars developed until 1970s, and group II contained the recent cultivars developed during 1980s and 1990s. Amongst old elite cultivars/lines, ‘Yukseung 3’, ‘Norin 12’ and ‘Norin 72’ contributed most to the genetic background of cultivars belonging to group I, and ‘Norin 4’, ‘Norin 12’, ‘Norin 43’ and ‘Norin 72’ to group II, respectively. The phylogenetic relationship of Korean wheat cultivars was in accordance with the genealogical data of each cultivar. The genetic background of each cultivar was assessed from the point of breeding and germplasm management such as variety identification and duplicated accessions for assisting in developing a system for the registration of new variety based on the molecular characterization in future.
SOI를 이용한 4채널 AWG Router의 설계 및 제작
장규호,박종대 明知大學校 産業技術硏究所 2000 産業技術硏究所論文集 Vol.19 No.-
In this paper, we present the design of 4 channel AWG router with low insertion loss and crosstlk using SOI. This device was designed and simulated by EIM and FD-BPM. It was observed that the insertion loss was 2.68 dB and the crosstlk was well below -30dB for all channels. This device was fabricated by dry etching technique.
최민호,이계복,조규원,박진영,김경수,송정석,한종현 한국전통의학연구소 2003 한국전통의학지 Vol.13 No.1
The purpose of this study is to measure the changes of regional cerebral blood flow (rCBF) and blood pressure (BP) of Cortex Acanthopanacis in rats, and to determine the effect of Cortex Acanthopanacis on phenylephrine (PE) induced contraction of isolated rat thoracic aorts. The measurement was continually monitored by laser-doppler flowmeter (Transonic Instrument, USA) and pressure transducer (Grass, USA) in anesthetized adult Sprague-Dawley rats through the data acquisition system composed of MacLab and Macintosh computer. Contractile force was measured with force displacement transducer under 1.5 g loading tension. The result of this experiment was as following; 1. Cortex Acanthopanacis did not effect the changes of rCBF and blood pressure significantly. 2. Contractions evoked by phenylephrine were decreased significantly by Cortex Acanthopanacis 3. L-NNA, ODQ, atropine and indomethacin significantly altered the relaxation of Cortex Acanthopanacis. 4. Propranolol did not change the relaxation of Cortex Acanthopanacis. These results indicate that Cortex Acanthopanacis did not change the rCBF and BP, but Cortex Acanthopanacis can relax PE induced contraction of isolated rat thoracic aorta and that this increasing contraction related to endothelium and various mechanism.
이규진,이송주,옥철호,장태원,정만홍,김영옥,박성달 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.4
저자들은 객혈을 주소로 내원한 75세 남자 환자에서 기관지내시경 육안 소견상 양성 종양이 의심 되었으나 조직 검사상 지방종을 확진하지 못하였고 악성종양을 배제할 수 없는 상황에서 종괴에 의한 왼쪽 폐의 허탈과 농흉 때문에 수술적 치료를 시행 하였으며, 수술 결과 기관지 지방종에 의한 폐허탈, 농흉 및 기관지 확장증, 이로 인한 객혈이 발생한 예가 있어 보고하는 바이다. Lipoma is a common neoplasm on soft tissues. However, bronchial lipoma is rare benign tumor. Patients with bronchial lipoma might have a malignant potential, and there were case reports of lung cancer accompanied with lipoma. Therefore, it should initially be treated by fibrotic bronchoscopy or surgery. We encountered a 75 year-old male patients with bronchial lipoma, causing hemoptysis.
Kim, Yong‐,Jin,Yoo, Hyobin,Lee, Chul‐,Ho,Park, Jun Beom,Baek, Hyeonjun,Kim, Miyoung,Yi, Gyu‐,Chul WILEY‐VCH Verlag 2012 Advanced Materials Vol.24 No.41
<P>On page 5565, Gyu‐Chul Yi and co‐workers grow position‐ and morphology‐controlled ZnO nanowalls in prescribed positions on graphene layers. The nanowalls are grown to produce a variety of shapes from simple circles to text at the microscale. The selective growth of high quality ZnO nanowalls is investigated by electron microscopy and optical spectroscopy. The hybrid nanostructure can be exploited to fabricate various nanodevices including microarrays of nanotube LEDs. </P>
다발성 간종괴의 형태로 나타난 특발성 과호산구 증후군 치험1예
최승오,연규민,이승민,김순제,왕준호,박형석,이재동,진춘조,이창훈,신현준,김정은 건국대학교 의과학연구소 2004 건국의과학학술지 Vol.14 No.-
Hypereosinophilic syndrome is characterized by persistent blood eosinophilia of 1,500/ul or more in the absence of known causes and multiorgan dysfunction by eosinophil-related tissue damage. In Korea, some cases of hypereosinophilic syndrome with hepatic involvement have been described with prolonged benign clinical courses. Most of them were diffuse or multifocal lesions in imaging studies, and a few case presenting as a single mass has been described. Here we report a case of hypereosinophilic syndrome with hepatic involvement in a 65-year-old man who presented with multifocal mass lesions. By abdominal US and CT scan, multiple, ill-defined nodules were detected in throughout the liver. Liver biopsy revealed severe eosinophilic hepatitis, suggestive of hypereosinophilic syndrome. Hepatic mass lesions improved after steroid administration for several weeks.