1.A Simple and Fast Web Alignment Tool for Large Amount of Sequence Data.
Genomics & Informatics 2008;6(3):157-159
Multiple sequence alignment (MSA) is the most important step for many of biological sequence analyses, homology search, and protein structural assignments. However, large amount of data make biologists difficult to perform MSA analyses and it requires much computational time to align many sequences. Here, we have developed a simple and fast web alignment tool for aligning, editing, and visualizing large amount of sequence data. We used a cluster server installed ClustalW-MPI using web services and message passing interface (MPI). It also enables users to edit multiple sequence alignments for manual editing and to download the input data and results such as alignments and phylogenetic tree.
Sequence Alignment
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Sequence Analysis
2.Effect of butanol fraction from Cassia tora L. seeds on glycemic control and insulin secretion in diabetic rats.
Nutrition Research and Practice 2008;2(4):240-246
Cassia tora L. seeds have previously been reported to reduce blood glucose level in human and animals with diabetes. In the present study, the effects of Cassia tora L. seed butanol fraction (CATO) were studied on postprandial glucose control and insulin secretion from the pancreas of the normal and diabetic rats. Diabetes was induced by an i.p. injection of Streptozotocin (55 mg/kg BW) into the male Sprague-Dawley rats. The postprandial glucose control was monitored during a 240 min-period using a maltose loading test. In normal rats, rats fed CATO (20 mg/100 g BW/d) showed lower postprandial glucose levels in all the levels from 30 min up to 180 min than those in the control rats without CATO (p<0.05). In diabetic rats, those levels in the CATO group seemed to be lower during the 30~180 min, but only glucose level at 30 min showed significant difference compared to that in the control group. Moreover, CATO delayed the peak time of the glucose rise in both normal and diabetic rats in the glucose curves. On the other hand, when CATO was administered orally to the diabetic rats for 5 days, 12 hr fasting serum glucose level was decreased in the diabetic rats (p<0.05). Degree of a decrease in 12 hr fasting serum insulin levels was significantly less in the diabetic CATO rats as compared to diabetic control rats. On the last day of feeding, beta cells of the pancreas were stimulated by 200 mg/dL glucose through a 40 min-pancreas perfusion. Amounts of the insulin secreted from the pancreas during the first phase (11~20 min) and the second phase (21~40 min) in the CATO fed diabetic rats were significantly greater than those in the diabetic control group (p<0.05). These findings indicated that constituents of Cassia tora L. seeds have beneficial effect on postprandial blood glucose control which may be partially mediated by stimulated insulin secretion from the pancreas of the diabetic rats.
Animals
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Blood Glucose
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Cassia
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Fasting
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Glucose
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Hand
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Humans
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Insulin
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Male
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Maltose
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Pancreas
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Perfusion
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Rats
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Rats, Sprague-Dawley
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Seeds
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Streptozocin
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Triazines
3.Cerebral Venous Thrombosis without Thrombocytopenia after COVID-19 Vaccination
Jeongsu HWANG ; Jong-Hee SOHN ; Sang-Hwa LEE ; Eungue LEE ; Wonseok JEON ; Yerim KIM
Journal of the Korean Neurological Association 2022;40(2):160-163
Cerebral venous thrombosis (CVT) is a rare form of cerebrovascular attack and its predisposing factors commonly co-exist. In the coronavirus disease 2019 (COVID-19) era, various side effects of COVID-19 vaccine have been reported, and CVT is one of the well-known types. It is usually explained as prothrombotic immune thrombocytopenia by an antibody binding to platelet factor 4 receptor. However, some cases are irrelevant to thrombocytopenia and calls for a new explanation. Here we report a case of CVT without thrombocytopenia after COVID-19 vaccination.
4.Comparison of dental radiography and computed tomography: measurement of dentoalveolar structures in healthy, small-sized dogs and cats
Seunghee LEE ; Kichang LEE ; Hyeona KIM ; Jeongsu AN ; Junho HAN ; Taekwon LEE ; Hogyun JEONG ; Youngkwon CHO
Journal of Veterinary Science 2020;21(5):e75-
Background:
Dental diseases are common in dogs and cats, and accurate measurements of dentoalveolar structure are important for planning of treatment. The information that the comparison computed tomography (CT) with dental radiography (DTR) is not yet reported in veterinary medicine.
Objectives:
The purpose of this study was to compare the DTR with CT of dentoalveolar structures in healthy dogs and cats, and to evaluate the CT images of 2 different slice thicknesses (0.5 and 1.0 mm).
Methods:
We included 6 dogs (2 Maltese and 1 Spitz, Beagle, Pomeranian, mixed, 1 to 8 years, 4 castrated males, and 2 spayed female) and 6 cats (6 domestic short hair, 8 months to 3 years, 4 castrated male, and 2 spayed female) in this study. We measured the pulp cavity to tooth width ratio (P/T ratio) and periodontal space of maxillary and mandibular canine teeth, maxillary fourth premolar, mandibular first molar, maxillary third premolar and mandibular fourth premolar.
Results:
P/T ratio and periodontal space in the overall dentition of both dogs and cats were smaller in DTR compared to CT. In addition, CT images at 1.0 mm slice thickness was generally measured to be greater than the images at 0.5 mm slice thickness.
Conclusions
The results indicate that CT with thin slice thickness provides more accurate information on the dentoalveolar structures. Additional DTR, therefore, may not be required for evaluating dental structure in small-sized dogs and cats.
5.Cefepime Induced Encephalopathy Mimicking Acute Stroke
Young Il KIM ; Subum HWANG ; Byoungchul CHOI ; Jeongsu HWANG ; Sang Hwa LEE
Journal of the Korean Neurological Association 2019;37(4):372-375
Cefepime is a fourth-generation cephalosporin, developed in 1994, and is well known for its adverse effects. In 2002, the Food and Drug Administration adjusted the labeling to account for increased risk of seizures, encephalopathy and myoclonus, especially in the setting of renal impairment. Here we present a case of an 86-year-old female, undergoing Cefepime treatment, with encephalopathy mimicking acute stroke.
Aged, 80 and over
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Brain Diseases
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Female
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Humans
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Myoclonus
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Seizures
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Stroke
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United States Food and Drug Administration
6.Osteonecrosis of the Femoral Head after Bone Marrow Transplantation.
Jeongmi PARK ; Jeongsu JUN ; Changsuk PARK ; Yong Sik KIM ; Soon Yong KWON ; Yoojin KIM ; Chun Choo KIM
Journal of the Korean Radiological Society 2003;49(1):51-56
PURPOSE: To retrospectively review finding of osteonecrosis of the femoral head after bone marrow transplantation. MATERIALS AND METHODS: We reviewed the clinical and MR findings of osteonecrosis of the femoral head in 23 of 1112 patients who underwent marrow transplantation during a five-year follow-up period lasting from 1996 to 2000. RESULTS: Mean age at the time of diagnosis was 31 (range, 20-47) years, and the mean time from transplant to diagnosis was 17 months. All patients developed variable graft-versus-host disease and seventeen were treated with high-dose prednisolone and/or cysclosporin for severe acute or extensive chronic graft versus host disease. Osteonecrosis was diagnosed by magnetic resonance (MR) imaging, which allowed early detection of disease assessment of its stage. At the time of diagnosis, 15 hips were at stage I, 28 at stage II, two at stage III, and none at stage IV, according to the international ARCO classification system. Osteonecrosis of femoral diaphyses, the lower lumbar spine, or pelvic bones in the MR field was also found to have occurred in 11 patients. Initial treatment was conservative: 21 hips underwent surgery [core decompression (n=10), vascularized fibular bone graft (n=5), and joint replacement (n=6)]. CONCLUSION: In patients receiving high-dose steroids for the treatment of graft-versus-host disease, MR screening might help detect osteonecrosis at an early stage.
Bone Marrow Transplantation*
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Bone Marrow*
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Classification
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Decompression
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Diagnosis
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Diaphyses
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Early Diagnosis
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Follow-Up Studies
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Graft vs Host Disease
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Head*
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Hip
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Humans
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Joints
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Mass Screening
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Osteonecrosis*
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Pelvic Bones
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Prednisolone
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Retrospective Studies
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Spine
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Steroids
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Transplants
7.Functional Aspects of the Obesity Paradox in Patients with Severe Coronavirus Disease-2019: A Retrospective, Multicenter Study
Jeongsu KIM ; Jin Ho JANG ; Kipoong KIM ; Sunghoon PARK ; Su Hwan LEE ; Onyu PARK ; Tae Hwa KIM ; Hye Ju YEO ; Woo Hyun CHO ;
Tuberculosis and Respiratory Diseases 2024;87(2):176-184
Background:
Results of studies investigating the association between body mass index (BMI) and mortality in patients with coronavirus disease-2019 (COVID-19) have been conflicting.
Methods:
This multicenter, retrospective observational study, conducted between January 2020 and August 2021, evaluated the impact of obesity on outcomes in patients with severe COVID-19 in a Korean national cohort. A total of 1,114 patients were enrolled from 22 tertiary referral hospitals or university-affiliated hospitals, of whom 1,099 were included in the analysis, excluding 15 with unavailable height and weight information. The effect(s) of BMI on patients with severe COVID-19 were analyzed.
Results:
According to the World Health Organization BMI classification, 59 patients were underweight, 541 were normal, 389 were overweight, and 110 were obese. The overall 28-day mortality rate was 15.3%, and there was no significant difference according to BMI. Univariate Cox analysis revealed that BMI was associated with 28-day mortality (hazard ratio, 0.96; p=0.045), but not in the multivariate analysis. Additionally, patients were divided into two groups based on BMI ≥25 kg/m2 and underwent propensity score matching analysis, in which the two groups exhibited no significant difference in mortality at 28 days. The median (interquartile range) clinical frailty scale score at discharge was higher in nonobese patients (3 [3 to 5] vs. 4 [3 to 6], p<0.001). The proportion of frail patients at discharge was significantly higher in the nonobese group (28.1% vs. 46.8%, p<0.001).
Conclusion
The obesity paradox was not evident in this cohort of patients with severe COVID-19. However, functional outcomes at discharge were better in the obese group.
8.A High-fat Diet Induces a Loss of Midbrain Dopaminergic Neuronal Function That Underlies Motor Abnormalities.
Yunseon JANG ; Min Joung LEE ; Jeongsu HAN ; Soo Jeong KIM ; Ilhwan RYU ; Xianshu JU ; Min Jeong RYU ; Woosuk CHUNG ; Eungseok OH ; Gi Ryang KWEON ; Jun Young HEO
Experimental Neurobiology 2017;26(2):104-112
Movement defects in obesity are associated with peripheral muscle defects, arthritis, and dysfunction of motor control by the brain. Although movement functionality is negatively correlated with obesity, the brain regions and downstream signaling pathways associated with movement defects in obesity are unclear. A dopaminergic neuronal pathway from the substantia nigra (SN) to the striatum is responsible for regulating grip strength and motor initiation through tyrosine hydroxylase (TH) activity-dependent dopamine release. We found that mice fed a high-fat diet exhibited decreased movement in open-field tests and an increase in missteps in a vertical grid test compared with normally fed mice. This motor abnormality was associated with a significant reduction of TH in the SN and striatum. We further found that phosphorylation of c-Jun N-terminal kinase (JNK), which modulates TH expression in the SN and striatum, was decreased under excess-energy conditions. Our findings suggest that high calorie intake impairs motor function through JNK-dependent dysregulation of TH in the SN and striatum.
Animals
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Arthritis
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Brain
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Diet, High-Fat*
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Dopamine
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Dopaminergic Neurons*
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Hand Strength
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JNK Mitogen-Activated Protein Kinases
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Mesencephalon*
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Mice
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Obesity
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Phosphorylation
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Substantia Nigra
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Tyrosine 3-Monooxygenase
9.A Case of Heart Transplantation for Fulminant Myocarditis After ChAdOx1nCoV-19 Vaccination
Seok Hyun KIM ; Soo Yong LEE ; Ga Yun KIM ; Ji Soo OH ; Jeongsu KIM ; Kook Jin CHUN ; Min Ho JU ; Chee-hoon LEE ; Yeo-Jeong SONG ; Joo-Young NA
Journal of Korean Medical Science 2022;37(13):e104-
Vaccines have become the mainstay of management against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection (coronavirus disease 2019; COVID-19) in the absence of effective antiviral therapy. Various adverse effects of COVID-19 vaccination have been reported, including cardiovascular complications such as myocarditis or pericarditis. Herein, we describe clinical records of a 63-year woman with fulminant myocarditis following ChAdOx1 nCoV-19 vaccination that was salvaged by heart transplantation. She complained chest pain, nausea, vomiting, and fever after the second vaccination. After the heart transplantation, the patient died due to necrotizing pneumonia on the 54th day of onset. Fulminant myocarditis is very rare after ChAdOx1 nCoV-19 vaccination but can be fatal.
10.Rationale and Design of the High Platelet Inhibition with Ticagrelor to Improve Left Ventricular Remodeling in Patients with ST-Segment Elevation Myocardial Infarction (HEALING-AMI) Trial
Yongwhi PARK ; Si Wan CHOI ; Ju Hyeon OH ; Eun Seok SHIN ; Sang Yeub LEE ; Jeongsu KIM ; Weon KIM ; Jeong Won SUH ; Dong Heon YANG ; Young Joon HONG ; Mark Y CHAN ; Jin Sin KOH ; Jin Yong HWANG ; Jae Hyeong PARK ; Young Hoon JEONG ;
Korean Circulation Journal 2019;49(7):586-599
BACKGROUND AND OBJECTIVES:
Impaired recovery from left ventricular (LV) dysfunction is a major prognostic factor after myocardial infarction (MI). Because P2Y12 receptor blockade inhibits myocardial injury, ticagrelor with off-target properties may have myocardial protection over clopidogrel. In animal models, ticagrelor vs. clopidogrel protects myocardium against reperfusion injury and improves remodeling after MI. We aimed to investigate the effect of ticagrelor on sequential myocardial remodeling process after MI.
METHODS:
High platelet inhibition with ticagrelor to improve LV remodeling in patients with ST-segment elevation MI (HEALING-AMI) is an investigator-initiated, randomized, open-label, assessor-blinded, multi-center trial done at 10 sites in Korea. Patients will be enrolled if they have ST-segment elevation MI (STEMI) treated with primary percutaneous coronary intervention and a planned duration of dual antiplatelet treatment of at least 6 months. Screened patients will be randomly assigned (1:1) using an internet-based randomization with a computer-generated blocking with stratification across study sites to either ticagrelor or clopidogrel treatment. The co-primary primary endpoints are LV remodeling index with three-dimensional echocardiography and the level of N-terminal prohormone B-type natriuretic peptide (NT-proBNP) at 6 months representing post-MI remodeling processes. Changes of LV end-systolic/diastolic volume indices and LV ejection fraction between baseline and 6-month follow-up will be also evaluated. Analysis is per protocol.
CONCLUSIONS
HEALING-AMI is testing the effect of ticagrelor in reducing adverse LV remodeling following STEMI. Our trial would show the benefit of ticagrelor vs. clopidogrel related to the recovery of post-MI LV dysfunction beyond potent platelet inhibition.TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT02224534