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허성관,권오섭,최종탁,박동은 대구대학교 과학기술연구소 2001 科學技術硏究 Vol.8 No.2
In this paper, we study the effect analysis on the quality certification of ISO 9000 in a company. For this study, the correct understanding of management level, the effect of certification requisition, and the improvement effects of some problems happen to the company are studied, before and after introducing the quality management system of ISO 9000. To analyze the various effects of the quality management system of ISO 9000, some companies certificated by the ISO 9" are surveyed and analyzed. The aim of this study is to provide some information to a company that want to introduce the quality management system of ISO 9000.
최문경,허경회,이원진,오성욱,이삼선 대한구강악안면방사선학회 2008 Imaging Science in Dentistry Vol.38 No.1
The present study reports a case of eosinophilic granuloma of the mandibular condyle. Eosinophilic granulomas on the mandibular condyle are very rare, but there are several common clinical and radiographic presentations. The clinical presentations involve swelling on preauricular area, limitation of opening, TMJ pain, etc. The radiographic presentations involve radiolucent lytic condylar lesion with or without pathologic fracture. Sometimes new bone formations are observed. The purpose of the article is to add new cases to the literatures.
누낭비강문합술(Dacryocystorhinostomy)을 이용한 비루관폐쇄 교정술식에 관한 고찰
백경식,강승우,오상윤,이민정,허원실 大韓顎顔面成形再建外科學會 1992 Maxillofacial Plastic Reconstructive Surgery Vol.14 No.4
Epiphora is overflow of tears due to obstruction of lacrimal duct. Dacryocystorhinostomy is the most common procedure to eliminate the epiphora secondary to complete or partial obstruction of the nasolacrimal duct. The procedure is to artificially create passage between lacrimal sac and nasal cavity. Especially, epiphora would be accompany often by nasolacrimal duct obstruction when trauma of ormaxillofacial area lead to nasal fracture, medial wall fracture of orbit. Therefore in this case there are many case to perform dacryocystorhinostomy because probing and tubing is difficult to resolve the epiphora. We performed 4 cases of dacryocystorhinostomy for adult nasolacrimal duct obstruction from May 1991 to October 1991. The results were very satisfactory in all the case. Epipora disappeared in all case.
경과 관찰 중에 폐감염이 동반된 선천성 낭성 선종양 기형 1예
김정아,이석현,오동훈,김종연,허진원,이성순 인제대학교 2006 仁濟醫學 Vol.27 No.-
We reported a case of congenital cystic adenomatoid malformation (CCAM), diagnosed two years ago, has been infected during medical observation. She underwent VATS guided right lower lobectomy because of little response to the medical treatment. The prognosis turned out to be excellent and now she is under regular medical observation. Management of asymptomatic CCAM still has a likelihood of controversy but the early surgical resection is recommended on a basis of a variety of reference and literature to verify the diagnosis and lessen the risk of infection or malignant degeneration. Moreover the early surgical intervention has a good prognosis settling complications. Recently VATS lobectomy is considered as an alternative strategy for CCAM, and the early surgical resection may be an ideal approach for asymptomatic CCAM.
박영수,김창오,김영근,홍성관,장경희,허애정,염준섭,송영구,김준명 대한감염학회 2001 감염 Vol.33 No.5
The Korean hemorrhagic fever (KHF) is an acute febrile disease with characteristic of fever, bleeding tendency, and renal failure. There are many complications of Korean hemorrhagic fever such as infection, anemia, internal bleeding, hypopituitarism, respiratory, and neurologic complication. A few cases were reported on acute pancreatitis with hemorrhagic fever abroad, but there was no case about Korean hemorrhagic fever with acute pancreatitis in this country. We experienced a case of Korean hemorrhagic fever associated with suspected acute pancreatits. With review of articles, we report a case of 51 year-old woman with KHF, where acute pancreatitis developed during management, (Korean J Infect Dis 33:376∼379, 2001)
Sung-Oh Huh,카우식 비샤이,Anisur Rahman Khuda-Bukhsh 한국분자세포생물학회 2015 Molecules and cells Vol.38 No.6
Controlled release of medications remains the most convenient way to deliver drugs. In this study, we precipitated gold nanoparticles with quercetin. We loaded gold-quercetin into poly(DL-lactide-co-glycolide) nanoparticles (NQ) and tested the biological activity of NQ on HepG2 hepatocarcinoma cells to acquire the sustained release property. We determined by circular dichroism spectroscopy that NQ effectively caused conformational changes in DNA and modulated different proteins related to epigenetic modifications and c ell cycle control. The mitochondrial membrane potential (MMP), reactive oxygen species (ROS), cell cycle, apoptosis, DNA damage, and caspase 3 activity were analyzed by flow cytometry, and the expression profiles of different anti- and pro-apoptotic as well as epigenetic signals were studied by immunoblotting. A cytotoxicity assay indicated that NQ preferentially killed cancer cells, compared to normal cells. NQ interacted with HepG2 cell DNA and reduced histone deacetylases to control cell proliferation and arrest the cell cycle at the sub-G stage. Activities of cell cycle-related proteins, such as p21WAF, cdk1, and pAkt, were modulated. NQ induced apoptosis in HepG2 cells by activating p53-ROS crosstalk and induces epigenetic modifications leading to inhibited proliferation and cell cycle arrest.
Oh, Yu-Ri,Lee, Joong-Bok,Park, Seung-Yong,Song, Chang-Seon,Choi, In-Soo,Kim, Yong-Hyun,Han, Eun-Jung,Lee, Jung-Hee,Lim, Kwang-Sei,Huh, Chul-Sung,Kim, Seong-Hee,Park, Sang-Shin,Lee, Sang-Won The Korean Society of Veterinary Science 2008 大韓獸醫學會誌 Vol.48 No.2
Lactic acid bacteria have been reported their beneficial roles on host including reduction of infectious diarrhea problems. In this study, preventive effect of Lactobacillus (L.) reuteri HY25101 and L. johnsonii HY25103 on porcine epidemic diarrhea virus (PEDV) was investigated in suckling piglets. Two groups of one day old PEDV naïve piglets were orally administered L. reuteri HY25101 and L. johnsonii HY25103 for three days respectively before challenge with lethal dose of PEDV. In second experiment, passive immunized one day old piglets using colostrums containing PEDV specific IgA were used. The survival rates of the L. reuteri HY25101 administered group were significantly higher than that of L. johnsonii HY25103 administered group and viral shedding was rapidly diminished in L. reuteri HY25101 administered group. Interestingly piglets born from the sow immunized with attenuated PEDV vaccine were not completely protected from PEDV challenge, however coadministeration of L. reuteri HY25101 and colostrums containing PEDV specific IgA were more effectively prevent PEDV infection. These results suggested that dietary treatment using L. reuteri HY25101 could reduce diarrheal problem and mortality rate caused by PEDV in suckling pigs. In addition, L. reuteri HY25101 could be used as one of effective compensation treatment with attenuated live vaccine for PED.
A Method of Preparing Recombinant Fusion Antigen from Rotavirus and Norovirus
Oh. Ho-Kyung,Huh. Chul-Sung,Baek. Young-Jin,Yoo. Dong-Wan 한국축산식품학회 2004 심포지움 및 학술발표회 Vol.- No.33
Rotavirus and Norovirus are major causative agents of acute diarrhea and gastroenteritis. In our study, Each viral RNA was isolated from the feces of patients for viral diarrhea in Korea, respectively. And cDNA library were constructed using RT-PCR. Also, cDNAs encoding VP8 derived from Rotavirus and Capsid protein derived from norovirus were subesequently cloned and expressed in Echerichia coli as a fusion antigen. Molecular weight of fusion antigen was approximately 60kDa. Also, substantial overexpression was accomplished. We yielded egg yolk lgY which is potentially useful in controlling of Rotavirus and Norovirus which are one of the most prevalent pathogenic viruses.