No abstract available.
Coronary Vessels*

No abstract available.

No abstract available.
Cholesteatoma* ; Fistula* ; Otitis Media* ; Otitis*

A mysterious disease was first reported from Korea when it had been observed during late spring 1951 in UN Forces operating in the central area close to the 38th parallel. The disease showed distinctive features which included high fever, low blood pressure, hemorrhagic tendency and acute renal failure. Historically it was apparently a similar disease to a clinical entity designated as Epidemic hemorrhagic fever in Manchuria or Hemorrhagic nephrosonephritis in Far Eastern Russia. After Lee Ho-Wang succeeded in demonstrating Hantaan virus which caused hemorrhagic fever with renal syndrome (HFRS), many studies has revealed various biological and epidemiological aspects of the disease. But the origin of the disease in Korea still remains unknown. This article tests some hypotheses which explain the origin of the disease and reviews the relation between the Korean War and HFRS. It is concluded that the emerging of HFRS would be closely related with the establishment of the munitions supply network in early 1951 in Chinese troop.
China ; English Abstract ; Hemorrhagic Fever with Renal Syndrome/*history ; History of Medicine, 20th Cent. ; Korea ; Military Medicine/*history ; Siberia ; War

No abstract available.
Animals ; Mice* ; Spleen*

No abstract available.
Animals ; Knee Joint* ; Knee* ; Mice* ; Parturition*

No abstract available.
Cholesteatoma*

BACKGROUND/AIMS: Ulcerative colitis (UC) is a chronic inflammatory bowel disease with heterogeneous clinical features. Data on the disease course and prognosis of UC patients who have been regularly treated are lacking. We aimed to investigate relapse rates of UC in remission and factors related to relapse. METHODS: We retrospectively analyzed clinical courses of 84 patients (43 males, median age 43 years, ranged 20-73 years) diagnosed as UC at Ajou University Hospital between January 1997 and December 2005 based on clinical, endoscopic and pathologic findings, and who were regularly followed for at least one year after the remission. RESULTS: Study subjects consisted of 32 proctitis (38%), 21 left-sided colitis (25%), and 31 subtotal or total colitis (37%). Of 84 patients, relapse was observed in 52 patients (62%) during the follow-up period (ranged 1-9 years). The relapse rate was 24%, 41%, 51%, 65%, 71%, and 79% at 1 year, 2 years, 3 years, 4 years, 5 years and 6 years, respectively. Among sex, age, hemoglobin, ESR, and the extent of disease on admission, decrease of hemoglobin level was the only independent factor related to relapse (odds ratio=2.67, 95% CI (1.32-5.42), p<0.01). CONCLUSIONS: In Korea, relapse of UC in remission is not rare. Decrease of hemoglobin level is an independent risk factor related to its relapse, while the extent of disease is not.
Adult ; Aged ; Anti-Inflammatory Agents, Non-Steroidal/therapeutic use ; Antimetabolites/therapeutic use ; Azathioprine/therapeutic use ; Chronic Disease ; Colitis, Ulcerative/*diagnosis/*epidemiology/therapy ; Data Interpretation, Statistical ; Female ; Follow-Up Studies ; Hemoglobins/analysis ; Humans ; Male ; Mesalamine/therapeutic use ; Middle Aged ; Odds Ratio ; Recurrence ; Retrospective Studies ; Risk Factors ; Time Factors

Experimental dermatophyte infections are essential for studying dermatophytosis. Induction of standard infections depends on control of three factors-spore dose, scarification, and species of the experimental animals. The authors evaluated the three factors in the experimental infection models, which were inoculated with quantitated spore solution of N.gypsea “+” and A. benhomiae “+” in rabbit, guinea pig, rat, and mouse. The results were as follows. 1. Infection was correlated with concentration of inoculums. 2. In traumatization method, abrasion with knife was the most effective for inoculation, followed by pricking, epilation, and shaving of hair in decreasing order. 3. Rabbit and guinea pig were more susceptible to dermatophyte infection rather than the rat and mouse. However, the mouse was not infected at all. 4. Guinea pig was the proper animal model for experimental dermatophytosis in susceptibility, degree of clinical response, and duration of the infection. 5. A.benhamiae “+” showed more severe inflammation and shorter course the N.gypsea “+”.
Animals* ; Arthrodermataceae* ; Guinea Pigs ; Hair ; Hair Removal ; Inflammation ; Methods ; Mice ; Models, Animal ; Rats ; Spores ; Tinea

The aim of this study was to identify the bacteria isolated from acute endodontic lesions by cell culture and 16S rDNA sequencing. The necrotic pulpal tissue was collected from 17 infected root canals, which were diagnosed as being either an acute pulpitis or acute periapical abscess. Samples were collected aseptically from the infected pulpal tissue of the infected root canals using a barbed broach and a paper point. The cut barbed broaches and paper points were transferred to an eppendorf tube containing 500 ul of 1 X PBS. The sample solution was briefly mixed and plated onto a BHI-agar plate containing 5% sheep blood. The agar plates were incubated in a 37degrees C anaerobic chamber for 7 days. The bacteria growing on the agar plate were identified by 16S rRNA coding gene (rDNA) cloning and sequencing at the species level. Among the 71 colonies grown on the agar plates, 56 strains survived and were identified. In dental caries involving the root canals, Streptococcus spp. were mainly isolated. Actinomyces, Clostridia, Bacteroides and Fusobacteria were isolated in the periapical lesion without dental caries. Interestingly, two new Actinomyces spp. (ChDC B639 and ChDC B631) were isolated in this study. These results showed that there was diversity among the species in endodontic lesions. This suggests that an endodontic infection is a mixed infection with a polymicrobial etiology. These results may offer the bacterial strains for pathogenesis studies related to an endodontic infection.
Actinomyces ; Agar ; Bacteria* ; Bacteroides ; Cell Culture Techniques ; Clinical Coding ; Clone Cells ; Cloning, Organism ; Coinfection ; Dental Caries ; Dental Pulp Cavity* ; DNA, Ribosomal ; Fusobacteria ; Periapical Abscess* ; Pulpitis* ; Sheep ; Streptococcus ; Tooth*