1.Hashimoto's Encephalopathy Presenting With Memory Disturbance and Complex Partial Seizure.
Jinwoong JUNG ; Byung Kun KIM ; Ohyun KWON ; Jong Moo PARK ; Kyusik KANG ; Hey Eun SHIN ; Jung Ju LEE
Journal of the Korean Neurological Association 2013;31(1):69-71
No abstract available.
Brain Diseases
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Hashimoto Disease
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Memory
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Neuroimaging
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Seizures
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Vasculitis
2.Rapid Isolation of Cyanidin 3-Glucoside and Peonidin 3-Glucoside from Black Rice (Oryza sativa) Using High-Performance Countercurrent Chromatography and Reversed-Phase Column Chromatography.
Heejin JEON ; Janggyoo CHOI ; Soo Jung CHOI ; Chang Uk LEE ; Shin Hee YOON ; Jinwoong KIM ; Kee Dong YOON
Natural Product Sciences 2015;21(1):30-33
Anthocyanins are water soluble plant pigments which are responsible for the blue, red, pink, violet colors in several plant organs such as flowers, fruits, leaves and roots. In recent years, anthocyanin-rich foods have been favored as dietary supplements and health care products due to diverse biological activities of anthocyanins including antioxidant, anti-allergic, anti-diabetic, anti-microbial, anti-cancer and preventing cardiovascular disease. High-performance countercurrent chromatography (HPCCC) coupled with reversed-phase medium pressure liquid chromatography (RP MPLC) method was applied for the rapid and efficient isolation of cyanidin 3-glucoside (C3G) and peonidin 3-glucoside (P3G) from black rice (Oryza sativa L., Poaceae). The crude black rice extract (500 mg) was subjected to HPCCC using two-phase solvent system composed of tert-butyl methyl ether/n-butanol/acetonitrile/0.01% trifluoroacetic acid (TBME/B/A/0.01% TFA, 1 : 3 : 1 : 5, v/v, flow rate - 4.5 mL/min, reversed phase mode) to give enriched anthocyanin extract (37.4 mg), and enriched anthocyanin extract was sequentially chromatographed on RP-MPLC to yield C3G (16.5 mg) and P3G (8.7 mg). The recovery rate and purity of isolated C3G were 76.0% and 98.2%, respectively, and those of P3G were 58.3% and 96.3%, respectively. The present study indicates that HPCCC coupled with RP-MPLC method is more rapid and efficient than multi-step conventional column chromatography for the separation of anthocyanins.
Anthocyanins
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Cardiovascular Diseases
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Chromatography*
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Chromatography, Liquid
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Countercurrent Distribution*
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Delivery of Health Care
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Dietary Supplements
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Flowers
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Fruit
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Plants
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Trifluoroacetic Acid
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Viola
3.Association between continuous renal replacement therapy and mortality after acute herbicide (glyphosate and/or glufosinate) intoxication: propensity score matching approach
Seung Woo LEE ; Won-joon JEONG ; Seung RYU ; Yongchul CHO ; Yeonho YOU ; Jung Soo PARK ; Changshin KANG ; Hong Joon AHN ; So Young JEON ; Jinwoong LEE
Journal of The Korean Society of Clinical Toxicology 2023;21(1):17-23
Purpose:
We investigated the association between continuous renal replacement therapy (CRRT) and mortality after acute glyphosate or glufosinate intoxication.
Methods:
The electronic medical records of patients with acute herbicide ingestion who were admitted to the regional emergency center of a metropolitan city in Korea from 3/1/2013 to 2/28/2022 were analyzed and reviewed retrospectively. The case group received CRRT, while the control group did not. In total, 96 patients experienced acute herbicide intoxication in the study period. Baseline characteristics were analyzed and compared between the two groups after propensity score matching. The outcome variable was mortality fitted by a Cox proportional hazard model.
Results:
After full matching between cases of CRRT use and controls (patients who did not receive CRRT) using propensity scores, 96 patients (27 cases, 69 controls) were analyzed. Propensity matching yielded adequate balance (standardized mean differences <0.25) for all covariates. We fit a Cox proportional hazards model with survival as the outcome and CRRT as a factor, including the matching weights in the estimation. The estimated hazard ratio was 0.41 (95% confidence interval, 0.23–0.76; p=0.0044), indicating that CRRT reduced mortality.
Conclusion
In this propensity score-matched analysis, CRRT reduced mortality in patients who visited the hospital with acute glyphosate or glufosinate intoxication. In patients with acute herbicide poisoning with high severity calculated by the APACHE II (Acute Physiology and Chronic Health Evaluation II) score and SOFA (Sequential Organ Failure Assessment) score, CRRT should be actively considered to improve the survival rate.