1.Identification of a new bovine picornavirus (Boosepivirus) in the Republic of Korea
Jeong-Byoung CHAE ; Seung-Uk SHIN ; Serim KIM ; Hansong CHAE ; Won Gyeong KIM ; Joon-Seok CHAE ; Hyuk SONG ; Jung-Won KANG
Journal of Veterinary Science 2024;25(5):e59-
Objective:
To identify, for the first time, the prevalence and impact of Boosepivirus (BooV) on calf diarrhea in the ROK.
Methods:
Here, the unknown cause of calf diarrhea was determined using metagenomics We then explored the prevalence of certain pathogens, including BooV, that cause NCD. Seventy diarrheal fecal samples from Hanwoo (Bos taurus coreanae) calves were analyzed using reverse transcriptase and quantitative real-time polymerase chain reaction for pathogen detection and BooV isolate sequencing.
Results:
The complete genome of BooV was detected from unknown causes of calf diarrhea.And also, BooV was the most frequently detected pathogen (35.7%) among 8 pathogens in 70 diarrheic feces from Hanwoo calves. Co-infection analyses indicated that most BooV-positive samples were solely infected with BooV, indicating its significance in NCD in the ROK. All isolates were classified as BooV B in phylogenetic analysis.
Conclusions
and Relevance: This is the first study to determine the prevalence and molecular characteristics of BooV in calf diarrhea in the ROK, highlighting the potential importance of BooV as a causative agent of calf diarrhea and highlighting the need for further research on its epidemiology and pathogenicity.
3.Stroke-Specific Predictors of Major Bleeding in Anticoagulated Patients With Stroke and Atrial Fibrillation: A Nationwide Multicenter Registry-Based Study
Darda CHUNG ; Tae-Jin SONG ; Bum Joon KIM ; Sung Hyuk HEO ; Jin-Man JUNG ; Kyungmi OH ; Chi Kyung KIM ; Sungwook YU ; Kwang Yeol PARK ; Jeong-Min KIM ; Jong-Ho PARK ; Man-Seok PARK ; Joon-Tae KIM ; Yang-Ha HWANG ; Yong-Jae KIM ; Jong-Won CHUNG ; Oh Young BANG ; Gyeong-Moon KIM ; Woo-Keun SEO ; Jay Chol CHOI
Journal of Clinical Neurology 2023;19(5):429-437
Background:
and Purpose The congestive heart failure, hypertension, age, diabetes, previous stroke/transient ischemic attack (CHA2DS2-VASc) and hypertension, abnormal renal/liver function, stroke, bleeding history or predisposition, labile international normalized ratio, elderly, drugs/alcohol (HAS-BLED) scores have been validated in estimating the risks of ischemic stroke and major bleeding, respectively, in patients with atrial fibrillation (AF). This study investigated stroke-specific predictors of major bleeding in patients with stroke and AF who were taking oral anticoagulants (OACs).
Methods:
Subjects were selected from patients enrolled in the Korean ATrial fibrillaTion EvaluatioN regisTry in Ischemic strOke patieNts (K-ATTENTION) nationwide multicenter registry between 2013 and 2015. Patients were excluded if they were not taking OACs, had no brain imaging data, or had intracranial bleeding directly related to the index stroke. Major bleeding was defined according to International Society of Thrombosis and Haemostasis criteria. Cox regression analyses were performed to assess the associations between clinical variables and major bleeding and Kaplan-Meier estimates were performed to analyze event-free survival.
Results:
Of a total of 3,213 patients, 1,414 subjects (mean age of 72.6 years, 52.5% males) were enrolled in this study. Major bleeding was reported in 34 patients during the median follow-up period of 1.73 years. Multivariable analysis demonstrated that initial National Institutes of Health Stroke Scale scores (hazard ratio [HR] 1.07, p=0.006), hypertension (HR 3.18, p=0.030), persistent AF type (HR 2.51, p=0.016), and initial hemoglobin level (HR 0.74, p=0.001) were independently associated with major bleeding risk. Except for hypertension, these associations remained significant after adjusting for the HAS-BLED score. Intracranial atherosclerosis presented a trend of association without statistical significance (HR 2.21, p=0.050).
Conclusions
This study found that major bleeding risk was independently associated with stroke-specific factors in anticoagulated patients with stroke and AF. This has the clinical implication that baseline characteristics of patients with stroke and AF should be considered in secondary prevention, which would bring the net clinical benefit of balancing recurrent stroke prevention with minimal bleeding complications.
4.Initiation of Guideline-Matched Oral Anticoagulant in Atrial Fibrillation-Related Stroke
Mi-Yeon EUN ; Jae-Young KIM ; Yang-Ha HWANG ; Man-Seok PARK ; Joon-Tae KIM ; Kang-Ho CHOI ; Jin-Man JUNG ; Sungwook YU ; Chi Kyung KIM ; Kyungmi OH ; Tae-Jin SONG ; Yong-Jae KIM ; Bum Joon KIM ; Sung Hyuk HEO ; Kwang-Yeol PARK ; Jeong-Min KIM ; Jong-Ho PARK ; Jay Chol CHOI ; Jong-Won CHUNG ; Oh Young BANG ; Gyeong-Moon KIM ; Woo-Keun SEO
Journal of Stroke 2021;23(1):113-123
Background:
and Purpose To evaluate the outcome events and bleeding complications of the European Society of Cardiology (ESC) guideline-matched oral anticoagulant therapy for patients with acute ischemic stroke and atrial fibrillation (AF).
Methods:
Patients with acute ischemic stroke and AF from a nationwide multicenter registry (Korean ATrial fibrillaTion EvaluatioN regisTry in Ischemic strOke patieNts [K-ATTENTION]) between January 2013 and December 2015 were included in the study. Patients were divided into the ESC guideline-matched and the non-matched groups. The primary outcome was recurrence of any stroke during the 90-day follow-up period. Secondary outcomes were major adverse cerebrovascular and cardiovascular events, ischemic stroke, intracranial hemorrhage, acute coronary syndrome, allcause mortality, and major hemorrhage. Propensity score matching and logistic regression analyses were performed to assess the effect of the treatments administered.
Results:
Among 2,321 eligible patients, 1,126 patients were 1:1 matched to the ESC guidelinematched and the non-matched groups. As compared with the non-matched group, the ESC guideline-matched group had a lower risk of any recurrent stroke (1.4% vs. 3.4%; odds ratio [OR], 0.41; 95% confidence interval [CI], 0.18 to 0.95). The risk of recurrent ischemic stroke was lower in the ESC guideline-matched group than in the non-matched group (0.9% vs. 2.7%; OR, 0.32; 95% CI, 0.11 to 0.88). There was no significant difference in the other secondary outcomes between the two groups.
Conclusions
ESC guideline-matched oral anticoagulant therapy was associated with reduced risks of any stroke and ischemic stroke as compared with the non-matched therapy.
5.DMLS (Direct Metal Laser Sintering) denture repair technique for a removable partial denture: A case report
Eun-Sun JANG ; Geun-Won JANG ; Jae-Joon BYUN ; Dae-Ryong KONG ; Joo-Hun SONG ; Gyeong-Je LEE
The Journal of Korean Academy of Prosthodontics 2020;58(3):251-256
In recent years, digital technology has been developed in dentistry, which denture frameworks can be manufactured using DMLS (Direct Metal Laser Sintering) technique. A traditional impression method can be replaced by oral scanning and wax pattern production process can be achieved by the use of CAD/CAM techniques. The designed STL files can be sent to DMLS devices to fabricate final components of removable partial dentures (RPD). The advantages of digital dentistry are concision and precision. In this case study, a fracture of occlusal rests providing support and indirect retention was repaired by DMLS and laser welding techniques. It shows satisfactory results in adaptation accuracy and functional properties of the repaired denture.
6.The rehabilitation of an edentulous maxilla with an implant-supported fixed prosthesis using a zirconia framework: A case report
Jae-Joon BYUN ; Eun-Sun JANG ; Dae-Ryong KONG ; Joo-Hun SONG ; Gyeong-Je LEE
The Journal of Korean Academy of Prosthodontics 2020;58(4):342-348
Anatomical changes in the facial and alveolar bones occur after multiple teeth are extracted. In the maxilla, the alveolar bone is absorbed in the direction and inclination of the root, and the remaining alveolar bone becomes shorter, reducing the diameter of the arch. In addition, as the nasolabial angle increases, the support of the lips and the aesthetics of the face are lost. This case reports a functional and aesthetically satisfactory results of full mouth rehabilitation with the implant-supported fixed prosthesis using a zirconia framework.
7.Analysis on mandibular movement using the JT-3D system
Joo-Hun SONG ; Ryeo-Woon KIM ; Jae-Joon BYUN ; Hee-Jung KIM ; Yu-ri HEO ; Gyeong-Je LEE
Journal of Dental Rehabilitation and Applied Science 2020;36(2):80-87
Purpose:
This study aims to measure the mandibular movement using JT-3D system and provide a range of mandibular movement that can serve as a good reference for diagnosing the temporomandibular disorder.
Materials and Methods:
This study was conducted in 60 young male and female adults. The maximum opening and closing movement was recorded using JT-3D system, and by regarding 5 times of repetitive movement as 1 cycle of movement, total 3 cycles of movement were recorded. During the maximum opening, vertical position of lower jaw, antero-posterior position, lateral deflection position, and maximum opening distance were recorded. To evaluate the reproducibility of JT-3D system, statistical analysis were conducted (α = 0.05).
Results:
During the maximum opening, the average value appeared at 31.56 mm vertically and 24.42 mm rearwardly, lateral deflection position 0.72 mm, and maximum opening distance 40.32 mm. There was no statistical significance in all measured values for three cycles of movement recorded with JT-3D system (P > 0.05).
Conclusion
During the maximum opening, the average value appeared at 0.72 mm in lateral deflection position and the maximum opening distance at 40.32 mm, and the analysis on the maximum opening of lower jaw using JT-3D system showed sufficiently reproducible results.
8.Long-Term Outcomes of Real-World Korean Patients with Atrial-Fibrillation-Related Stroke and Severely Decreased Ejection Fraction
Jin Man JUNG ; Yong Hyun KIM ; Sungwook YU ; Kyungmi O ; Chi Kyung KIM ; Tae Jin SONG ; Yong Jae KIM ; Bum Joon KIM ; Sung Hyuk HEO ; Kwang Yeol PARK ; Jeong Min KIM ; Jong Ho PARK ; Jay Chol CHOI ; Man Seok PARK ; Joon Tae KIM ; Kang Ho CHOI ; Yang Ha HWANG ; Jong Won CHUNG ; Oh Young BANG ; Gyeong moon KIM ; Woo Keun SEO
Journal of Clinical Neurology 2019;15(4):545-554
BACKGROUND AND PURPOSE: The clinical implications of echocardiography findings for long-term outcomes in atrial fibrillation (AF)-related stroke patients are unknown. METHODS: This was a substudy of the Korean ATrial fibrillaTion EvaluatioN regisTry in Ischemic strOke patieNts (K-ATTENTION), which is a multicenter-based cohort comprising prospective stroke registries from 11 tertiary centers. Stroke survivors who underwent two-dimensional transthoracic echocardiography during hospitalization were enrolled. Echocardiography markers included the left-ventricle (LV) ejection fraction (LVEF), the left atrium diameter, and the ratio of the peak transmitral filling velocity to the mean mitral annular velocity during early diastole (E/e′ ratio). LVEF was categorized into normal (≥55%), mildly decreased (>40% and <55%), and severely decreased (≤40%). The E/e′ ratio associated with the LV filling pressure was categorized into normal (<8), borderline (≥8 and <15), and elevated (≥15). Kaplan-Meier and Cox regression analyses were performed for recurrent stroke, major adverse cardiac events, and all-cause death. RESULTS: This study finally included 1,947 patients. Over a median follow-up of 1.65 years (interquartile range, 0.42–2.87 years), the rates of recurrent stroke, major adverse cardiac events, and all-cause death were 35.1, 10.8, and 69.6 cases per 1,000 person-years, respectively. Multivariable analyses demonstrated that severely decreased LVEF was associated with a higher risks of major adverse cardiac events [hazard ratio (HR), 3.91; 95% confidence interval (CI), 1.58–9.69] and all-cause death (HR, 1.95; 95% CI, 1.23–3.10). The multivariable fractional polynomial plot indicated that recurrent stroke might be associated with a lower LVEF. CONCLUSIONS: Severe LV systolic dysfunction could be a determinant of long-term outcomes in AF-related stroke.
Atrial Fibrillation
;
Cohort Studies
;
Diastole
;
Echocardiography
;
Follow-Up Studies
;
Heart Atria
;
Hospitalization
;
Humans
;
Prospective Studies
;
Registries
;
Stroke
;
Survivors
9.Upper airway obstruction resulting from acute mucosal injury induced by direct ingestion of sodium picosulfate/magnesium citrate powder.
Gyeong Bo KIM ; Sung Yeon HWANG ; Tae Gun SHIN ; Tae Rim LEE ; Won Chul CHA ; Min Seob SIM ; Ik Joon JO ; Keun Jeong SONG ; Joong Eui RHEE ; Yeon Kwon JEONG
Clinical and Experimental Emergency Medicine 2016;3(2):109-111
A 59-year-old man presented to the emergency department with a chief complaint of sore throat after swallowing sodium picosulfate/magnesium citrate powder for bowel preparation, without first dissolving it in water. The initial evaluation showed significant mucosal injury involving the oral cavity, pharynx, and epiglottis. Endotracheal intubation was performed for airway protection in the emergency department, because the mucosal swelling resulted in upper airway compromise. After conservative treatment in the intensive care unit, he underwent tracheostomy because stenosis of the supraglottic and subglottic areas was not relieved. The tracheostomy tube was successfully removed after confirming recovery, and he was discharged 3 weeks after admission.
Airway Obstruction*
;
Cathartics
;
Caustics
;
Citric Acid*
;
Colonoscopy
;
Constriction, Pathologic
;
Deglutition
;
Eating*
;
Emergency Service, Hospital
;
Epiglottis
;
Humans
;
Intensive Care Units
;
Intubation, Intratracheal
;
Middle Aged
;
Mouth
;
Pharyngitis
;
Pharynx
;
Sodium*
;
Tracheostomy
;
Water
10.Monosomal and complex karyotypes as prognostic parameters in patients with International Prognostic Scoring System higher risk myelodysplastic syndrome treated with azacitidine.
Kyung Lim HWANG ; Moo Kon SONG ; Ho Jin SHIN ; Hae Jung NA ; Dong Hun SHIN ; Joong Keun KIM ; Joon Ho MOON ; Jae Sook AHN ; Ik Chan SONG ; Junshik HONG ; Gyeong Won LEE ; Joo Seop CHUNG
Blood Research 2014;49(4):234-240
BACKGROUND: Azacitidine (AZA) is standard care for patients with myelodysplastic syndrome (MDS) who have not had allogeneic stem cell transplantation. Chromosomal abnormalities (CA) including complex karyotype (CK) or monosomal karyotype (MK) are associated with clinical outcome in patients with MDS. METHODS: We investigated which prognostic factors including CAs would predict clinical outcomes in patients with International Prognostic Scoring System (IPSS) higher risk MDS treated with AZA, retrospectively. CK was defined as the presence of three or more numerical or structural CAs. MK was defined as the presence of two or more distinct autosomal monosomies or single autosomal monosomy with at least one additional structural CA. RESULTS: A total of 243 patients who treated with AZA, were enrolled. CK was present in 124 patients and MK was present in 90 patients. Bone marrow blasts > or =15% and CK were associated with poorer response (P=0.038, P=0.007) and overall survival (OS) (P<0.001, P<0.001) independently. Although MK in CK group was not associated with prognosis, non-MK status in non-CK group reflected favorable OS (P=0.005). The group including >3 CAs was associated with poorer OS (group including <3 CAs vs. only three CAs, P=0.001; group with >3 CAs vs. only three CAs, P=0.001). CONCLUSION: CK was an important prognostic parameter associated with worse outcome. MK may predict poor survival in only non-CK status. The higher number of CAs was associated with poorer survival.
Azacitidine*
;
Bone Marrow
;
Chromosome Aberrations
;
Humans
;
Karyotype*
;
Monosomy
;
Myelodysplastic Syndromes*
;
Prognosis
;
Retrospective Studies
;
Stem Cell Transplantation

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