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설사 자돈으로부터 분리한 Escherichia coli의 특성에 관한 연구 ; 항균제 감수성, 장독소 및 섬모의 유전형의 분포 및 plasmid profiles
박주연,신나리,박용호,유한상,Park, Joo-youn,Shin, Na-ri,Park, Yong-ho,Yoo, Han-sang 대한수의학회 2000 大韓獸醫學會誌 Vol.40 No.2
The antimicrobial susceptibility, genotypes of enterotoxins(LT, STa) and pili(K88, 987P), and plasmid profiles were investigated with 102 Escherichia coli isolated from piglets showing diarrhea in Korea. Almost of them were susceptible to ceftiofur(99%), cefquinone(97.1%). However they showed resistance to bacitracin(100%), streptomycin(98%), vancomycin(97%), trimethoprim/sulfamethoxazole(87.2%), tetracycline(84.3%) in antimicrobial susceptibility test. Moreover, all of the isolates demonstrated resistance to more than 2, and 78% of them were resistant to more than 8 of total 17 drugs. Multiplex PCRs for genotyping of enterotoxins(LT, STa) and pili(K88, 987P) were established with primers designed based on sequences from Genebank. Seventeen strains(16.6%) of the isolates had STa gene, 11 strains(10.8%) of them had both STa and LT genes, and 18 strains(17.8%) had K88 gene. But none of the isolates harbored a gene exclusively encoding LT. The gene encoding 987P pili was not found in all isolates. Fifty-four strains of 102 isolates(52.9%) had plasmid with various sizes ranging from 125kb to 1.1kb. Numbers of plasmid per isolates were also various, from 1 to 9. Distinctive relationship between plasmid profiles and genotypes of enterotoxins and pili in the isolates was not found. These results might provide the basic knowledge to establish strategies for the treatment and prevention of colibacillosis in piglets.
박주연,박성희,Joo Youn Park,MD,Song Hee Park,MD 대한안과학회 2009 대한안과학회지 Vol.50 No.2
Purpose: To evaluate the clinical usefulness of the 10-prism-diopter (PD) fixation test in the diagnosis of amblyopia. Methods: The study comprised 132 children (42 normal, 90 amblyopes) who underwent the 10-PD fixation test and stereoacuity test. The sensitivity, specificity, false-positive and false-negative rates of the 10-PD fixation test were analyzed according to the clinical diagnosis. Results: The 10-PD fixation test sensitivity was 86%, the specificity was 61%, the false-positive rate was 17% and the false-negative rate was 24%. Data showed agreement between the 10-PD fixation test and the stereoacuity test (γ=0.737, p=0.000). The results in the 10-PD base-down test and base-out test also showed agreement (γ=0.779, p=0.000). Conclusions: The 10-PD fixation test is a simple and useful method in detecting amblyopia.
황반부종의 유리체강내 트리암시놀론 주사 후 빛간섭단층촬영에서 나타난 국소 악화
박주연,성미선,이성진,Joo Youn Park,M,D,Mi Sun Sung,M,D,Sung Jin Lee,M,D 대한안과학회 2008 대한안과학회지 Vol.49 No.5
Purpose: To evaluate the relationship between focal aggravation of the macular edema on retinal thickness change analysis (RTCA) of optical coherence tomography (OCT) and fluorescein angiographic findings in patients after an intravitreal triamcinolone injection (IVTA). Methods: From May 2004 to April 2005, RTCA in a fast macular thickness map (FMTM) of OCT was performed before and 4 weeks after IVTA in patients who had macular edemas caused by diabetic retinopathy and retinal vein occlusion. Patients underwent IVTA, and focal aggravation of the edema was detected. After overlapping the OCT findings onto angiographic pictures, the relationship between the focal aggravation on OCT and the leaking point on angiography was investigated. Result: In the patient group, focal aggravation was found in 5 of 27 eyes (18.5%); in the control group, only 2 of 30 eyes (6.7%) showed focal aggravation. As compared with angiographic pictures, 4 eyes with focal aggravation showed no relation to the leakage on angiography. Conclusions: Focal aggravation of macular edemas after IVTA on RTCA are not related to the leakage on angiography and could be an error from several artifacts. J Korean Ophthalmol Soc 49(5):753-762, 2008
가토안에서 전방내 트리암시놀론 주입술이 각막에 미치는 영향
박주연,김훈동,최경식.Joo Youn Park. M.D.. Hoon Dong Kim. M.D.. Kyung Seek Choi. M.D. 대한안과학회 2008 대한안과학회지 Vol.49 No.4
Purpose: To evaluate the safety and effects of intracameral triamcinolone acetonide injection in rabbit corneas. Methods: Triamcinolone acetonide in the amounts of 0.5, 1, and 2 mg was injected into the anterior chamber of rabbit eyes, and intraocular pressure, corneal thickness, and endothelial cell counts were evaluated on days 1, 3, 7, 14, and 28. Twenty-eight days after triamcinolone acetonide injection, the eyes were enucleated and examined after TUNEL staining. Results: No statistically significant differences were found among control, 0.5, and 1 mg triamcinoloneinjected eyes in central corneal thickness, endothelial cell density, pleomorphism, and polymegathism. There was no difference between 2 mg triamcinolone-injected eyes and control eyes for corneal thickness and cell density, but there were statistically significant differences between these two groups for pleomorphism (p<0.05) and polymegathism (p<0.05). Conclusions: The results of this study suggested that intracameral injections of 0.5~1 mg of triamcinolone acetonide are beneficial and cause no toxic effects on corneas.
박주연 ( Joo Yeon Park ),안정훈 ( Jeong Hoon Ahn ),서혜선 ( Hae Sun Suh ),박선영 ( Sun Young Park ),현민경 ( Min Kyung Hyun ),성윤경 ( Yoon Kyoung Sung ),이의경 ( Eui Kyung Lee ),김윤희 ( Youn Hee Kim ) 한국보건경제정책학회 2011 보건경제와 정책연구 Vol.17 No.3
This study was performed to estimate willingness to pay(WTP) for treatment that would reduce osteoporotic fractures to provide evidence-based decision making related to the reimbursement of osteoporosis use. 101 people in Seoul and Chung Cheong-Do were interviewed face to face and asked about their WTP for treatment that would reduce their or their family``s risks of vertebral or hip fracture by 10% or 50%. Each question was repeated for the fracture risk of a family member. A generalized Linear Model(GLM) was used to identify factors affecting the level of WTP in male and female group separately. The WTP for treatment that would reduce the risk of vertebral fracture by 10% and 50% were 660,000 and 1,350,000 Korean won, respectively, per year; and the WTP for treatment that would reduce the risk of hip fracture by 10% and 50% was 1,160,000 and 2,350,000 Korean won, respectively, per year. The average WTP for a family member was around 10% higher than the WTP for oneself. The factors affecting the WTP have differences in male and female group but the WTPs of both groups were associated with higher effect of reducing fracture. These consumers``WTPs would provide information regarding the treatment of osteoporosis and contribute to appropriate drug use and rational pharmaceutical spending.
돼지 폐렴병소로부터 분리한 Pasteurella multocida에 관한 연구 : 항균제 감수성, plasmid profile 및 toxA 유전자 분포
신나리,박주연,박용호,유한상,Shin, Na-ri,Park, Joo-youn,Park, Yong-ho,Yoo, Han-sang 대한수의학회 1999 大韓獸醫學會誌 Vol.39 No.6
Antimicrobial susceptibility, plasmid profiles and distribution of toxA gene were investigated in Pasteurella multocida isolated from pneumonic lung lesions of swine. The bacteria were highly susceptible to norfloxacin, cabenicillin, enrofloxacin and chloramphenicol, but resistant to colistin, sulfamethoxawle/trimethoprime, bacitracin, streptomycin. Sixty percentage of the isolates was resistant more than 2 drugs used in this experiment and 21 strains (23.6%) were resistant more than 5 drugs. This phenomenon meant that they had highly multi-drugs resistance. In the analysis of plasmid profiles, nineteen strains (47.5%) of 40 P multocida isolates harbored plasmids, ranging from 53.3kb to 2.49kb in size and the plasmid profiles could be classified into 5 groups. However, there was no relationship between the size and the profile of plasmid and the resistance pattern of antimicrobial agents. Thirty strains of 39 P multocida isolates (77%) investigated by PCR harbored toxA gene. This result suggested involvement of the ToxA protein expressed from the gene in pneumonic pasteurellosis of swine.
국내 사육돼지에서의 Yersinia enterocolitica 38 kDa outer membrane protein에 대한 항체가 분포
신성재,박주연,최인수,신나리,유한상,Shin, Seong-jae,Park, Joo-youn,Choi, In-soo,Shin, Na-ri,Yoo, Han-sang 대한수의학회 2001 大韓獸醫學會誌 Vol.41 No.1
Yersinia enterocolitica is an inhabitant in the lower intestinal tract of many domestic and wild animals as well as in the nature. Of the several forms of diseases caused by Y. enterocolitica, an acute enteritis, especially in young children, is the most common form. Infection of the bacteria usually occurs through fecal-oral route by contaminated foods or water, especially mountainspring water. Of the domestic animals, swine has been known as one of the most important carrier in the human infection. Based on the knowledge, prevalence of antibody against Y enterocolitica was investigated with swine sera collected from Korea for the survey of Y enterocolitica infection in swine. As the first step of this survey, we analyzed outer membrane protein (OMP) profiles of the representative strains of Y enterocolitica isolated from the feces of piglets and mountainspring water in Korea. Thirty-eight kDa OMP was identified as the common OMP regardless of origin, serotype, or biotype of Y enterocolitica isolates. Presence of antibody specific for 38 kDa OMP of Y enterocolitica in 1,076 swine sera collected from November 1999 to October 2000 was analysed with ELISA. Antibody titer in sows was significantly higher than that in piglets, growing pigs and finishing pigs (p<0.05). Also, there was seasonal difference in the prevalence of antibody against Y enterocolitica. These results would provide the basic knowledge for controlling the Y enterocolitica infection in human as well as swine.
스펙트럼 영역 빛간섭단층촬영기를 이용한 근시 정도에 따른 황반 구조의 정량적 분석
김승훈,박주연,박태관,온영훈,Seung Hoon Kim,Joo Youn Park,Tae Kwann Park,Young-Hoon Ohn 대한안과학회 2011 대한안과학회지 Vol.52 No.11
Purpose: To investigate the correlation of macular retinal thickness and refractive error using spectral-domain optical coherence tomography (SD-OCT). Methods: A total of 120 eyes with no posterior abnormalities were enrolled in the present study. Subjects were divided into 3 groups based on their spherical equivalent. Visual acuity, refraction, slit lamp examination, tonometry and fundus examination were performed. Retinal thickness between the RPE and IS/OS junction was measured at the fovea, 1 mm (inner ring) and 2 mm (outer ring) superiorly, inferiorly, nasally and temporally using SD-OCT. Overall average thickness, average foveal thickness, and the inner and outer ring macular thickness were measured. Results: The average foveal thickness was significantly greater in the high myopic eyes than in the low to moderate myopic and emmetropic eyes (p = 0.001). However, the RPE-IS/OS junction thickness of the foveola and the outer macular thickness were significantly lower (p = 0.001, p = 0.002) in the high myopic eyes. There was a weak, but significant negative correlation between refractive error and average foveal thickness (r = -0.38, p = 0.001). A positive correlation was found between refractive error and the RPE-IS/OS junction thickness (r = 0.40, p = 0.001). Conclusions: Macular retinal thickness is related to refractive error in normal subjects. Effects of eyeball elongation are more apparent in high myopic eyes than in low to moderate myopic eyes. A significant decline in the RPE-IS/OS junction thickness suggests the photoreceptor outer segments in the foveola are damaged in high myopic eyes. J Korean Ophthalmol Soc 2011;52(11):1286-1295