1.Recurrent Pulseless Ventricular Tachycardia Induced by Commotio Cordis Treated with Therapeutic Hypothermia.
Sanghyun LEE ; Hyunggoo KANG ; Taeho LIM ; Jaehoon OH ; Chiwon AHN ; Juncheal LEE ; Changsun KIM
Korean Journal of Critical Care Medicine 2015;30(4):349-353
The survival rate of commotio cordis is low, and there is often associated neurological disability if return of spontaneous circulation (ROSC) can be achieved. We report a case of commotio cordis treated with therapeutic hypothermia (TH) that demonstrated a favorable outcome. A 16-year-old female was transferred to our emergency department (ED) for collapse after being struck in the chest with a dodgeball. She has no history of heart problems. She was brought to our ED with pulseless ventricular tachycardia (VT), and ROSC was achieved with defibrillation. She was comatose at our ED and was treated with TH at a target temperature of 33degrees C for 24 hours. After transfer to the intensive care unit, pulseless VT occurred, and defibrillation was performed twice. She recovered to baseline neurologic status with the exception of some memory difficulties.
Adolescent
;
Coma
;
Commotio Cordis*
;
Emergency Service, Hospital
;
Female
;
Heart
;
Humans
;
Hypothermia*
;
Intensive Care Units
;
Memory
;
Survival Rate
;
Tachycardia
;
Tachycardia, Ventricular*
;
Thoracic Injuries
;
Thorax
2.Alginate/PEI/DNA polyplexes: a new gene delivery system
Ge JIANG ; Sanghyun MIN ; Miha KIM ; Dongchul LEE ; Mijung IM ; Youngil YEOM
Acta Pharmaceutica Sinica 2006;41(5):439-445
Aim To avoid the limitation of the use of cationic polyethlenimine (PEI)-complexed plasmid DNA use for in vitro or in vivo gene delivery due to its cytotoxicity and lower efficiency in the presence of serum. Methods A polyplex with decreased positive charge on the complex surface was designed. The PEI/DNA (PD) complexes coated with an anionic biodegradable polymer, alginate were prepared and their gene delivery behavior with PD was compared. Results The alginate-coated PD polyplex, where alginate: PEI: DNA [alginate: DNA, 0. 15 (w/w); PEI: DNA, N: P = 10] showed about 10 -30 fold-increased transfection efficiency compared to corresponding non-coated complexes to C3 cells in the presence of 50% serum. The surface charge of the alginate-coated complex was approximately half of that of the alginate-lacking complex. The size of alginate-coated complex was slightly smaller than that of the corresponding complex without alginate. The former complex also showed a reduced erythrocyte aggregation activity and decreased cytotoxicities to C3 cells in comparison with PD complex. Conclusion The alginate-coated PD polyplexes as a new gene delivery system can improve transfection efficiency in high serum concentration with low cytotoxicity to C3 cells.
3.Importance-satisfaction analysis of street food sanitation and choice factor in Korea and Taiwan.
Nami JOO ; Sanghyun PARK ; Bohee LEE ; Jiyoung YOON
Nutrition Research and Practice 2015;9(3):296-303
BACKGROUND/OBJECTIVES: The present study investigated Korean and Taiwan adults on the importance of and the satisfaction with street food sanitation and street food choice factor, in order to present management and improvement measures for street foods. SUBJECTS/METHODS: The present study conducted a survey on 400 randomly chosen adults (200 Korean, 200 Taiwanese). General characteristics, eating habits, street food intake frequency, and preference by type of street food of respondents were checked. Respondents' importance and satisfaction of street food hygiene and selection attributes were also measured. In order to test for the difference between groups, chi2-test and t-test were performed. ISA was also performed to analyze importance and satisfaction. RESULTS: Results showed that the importance of sanitation was significantly higher than satisfaction on all items in both Korea and Taiwan, and the satisfaction with sanitation was higher in Taiwan than in Korea. According to ISA results with street food sanitation, satisfaction was low while importance was high in both Korea and Taiwan. In terms of street food choice factor, importance scores were significantly higher than satisfaction scores on all items. In addition, satisfaction scores on all items except 'taste' were significantly higher in Taiwan than in Korea. CONCLUSIONS: A manual on sanitation management of street foods should be developed to change the knowledge and attitude toward sanitation by putting into practice a regularly conducted education. Considering the popularity of street foods and its potential as a tourism resource to easily publicize our food culture, thorough management measures should be prepared on sanitation so that safe street food culture should be created.
Adult
;
Surveys and Questionnaires
;
Eating
;
Education
;
Humans
;
Hygiene
;
Korea
;
Sanitation*
;
Taiwan*
4.Cervicogenic Vertigo Treated by C1 Transverse Foramen Decompression : A Case Report.
Junhee PARK ; Chulkyu LEE ; Namkyu YOU ; Sanghyun KIM ; Kihong CHO
Korean Journal of Spine 2014;11(3):209-211
Cervicogenic vertigo was known as Bow hunter's syndrome. Occlusion of vertebral artery causes vertebrobasilar insufficiency and we reported cervicogenic vertigo case which was treated by simple decompression of transverse foramen of C1. The patient was 48 years old female who had left side dominant vertebral artery and vertigo was provoked when she rotated her head to right side. Angiography showed complete obliteration of blood flow of left vertebral artery when her head was rotated to right side. The operation was decompression of left vertebral artery at C1 level. Posterior wall of transverse foramen was resected and vertebral artery was exposed and decompressed. After surgery, vertigo of the patient was disappeared, and angiography showed patent left vertebral artery when her head was rotated to right side. Vertigo caused by compression of cervical vertebral artery could be treated by decompression without fusion or instrumentation, especially in C1 transverse foramen.
Angiography
;
Decompression*
;
Female
;
Head
;
Humans
;
Mucopolysaccharidosis II
;
Vertebral Artery
;
Vertebrobasilar Insufficiency
;
Vertigo*
6.Analysis of Phenolic Acid Content and Antioxidant Activity of Chestnut Honey from Different Regions of Korea
Juree KIM ; Neil Patrick UY ; Doyun KIM ; Sanghyun LEE
Natural Product Sciences 2023;29(3):127-131
Chestnut honey contains various components such as phenolic compounds and alkaloids that exhibit antioxidant and anti-inflammatory activities. However, the composition and activity of chestnut honey significantly differ depending on its region of origin. In this study, the antioxidant activity of chestnut honey obtained from nine regions in Korea was evaluated by ABTS free radical scavenging assay. In addition, the phenolic acid content of each honey sample was analyzed using high-performance liquid chromatography (HPLC) and an ultraviolet (UV) detector. The antioxidant activity increased with the increasing concentration of chestnut honey samples. The major phenolic compounds in chestnut honey were observed to be gallic, p-coumaric, and ferulic acid. Altogether, the quantitative analysis of phenolic acids and evaluation of antioxidant activity in chestnut honey from different regions will contribute to establishing regional chestnut honey profiling in Korea and may provide preliminary data for collecting honey with various biological activities.
8.Yield Analysis of Flavonoids in Acanthopanax divaricatus and A. koreanum Grown using Different Cultivation Methods.
Jeong Min LEE ; Jaemin LEE ; Jung Jong LEE ; Sang Chul LEE ; Sanghyun LEE
Natural Product Sciences 2016;22(1):25-29
High-performance liquid chromatography was performed in order to analyze the changes in the flavonoid content (rutin, hyperin, afzelin, quercetin, and kaempferol) of Acanthopanax divaricatus and A. koreanum, in response to different cultivation methods (pinching height, planting time, and top dressing). The total flavonoid content of A. divaricatus and A. koreanum ranged from 0.201 to 0.690 mg/g with different pinching heights, 0.143 to 1.001 mg/g for different planting times, and 0.156 to 1.074 mg/g depending on the rate of fertilizer application. In both A. divaricatus and A. koreanum, the total flavonoid content in the upper section of the plant was greater than that in the lower section. These results demonstrate which cultivation methods maximize the flavonoid content of A. divaricatus and A. koreanum, and thus help to optimize flavonoid yields to improve production for nutraceutical, pharmaceutical, and cosmeceutical applications.
Eleutherococcus*
;
Chromatography, High Pressure Liquid
;
Chromatography, Liquid
;
Dietary Supplements
;
Flavonoids*
;
Methods*
;
Plants
;
Quercetin
9.Identification of Dammarane-type Triterpenoid Saponins from the Root of Panax ginseng.
Dong Gu LEE ; Jaemin LEE ; Sanghoon YANG ; Kyung Tack KIM ; Sanghyun LEE
Natural Product Sciences 2015;21(2):111-121
The root of Panax ginseng, is a Korea traditional medicine, which is used in both raw and processed forms due to their different pharmacological activities. As part of a continued chemical investigation of ginseng, the focus of this research is on the isolation and identification of compounds from Panax ginseng root by open column chromatography, medium pressure liquid chromatography, semi-preparative-high performance liquid chromatography, Fast atom bombardment mass spectrometric, and nuclear magnetic resonance. Dammarane-type triterpenoid saponins were isolated from Panax ginseng root by open column chromatography, medium pressure liquid chromatography, and semi-preparative-high performance liquid chromatography. Their structures were identified as protopanaxadiol ginsenosides [gypenoside-V (1), ginsenosides-Rb1 (2), -Rb2 (3), -Rb3 (4), -Rc (5), and -Rd (6)], protopanaxatriol ginsenosides [20(S)-notoginsenoside-R2 (7), notoginsenoside-Rt (8), 20(S)-O-glucoginsenoside-Rf (9), 6-O-[alpha-L-rhamnopyranosyl(1-->2)-beta-D-glucopyranosyl]-20-O-beta-D-glucopyranosyl-3beta,12beta, 20(S)-dihydroxy-dammar-25-en-24-one (10), majoroside-F6 (11), pseudoginsenoside-Rt3 (12), ginsenosides-Re (13), -Re5 (14), -Rf (15), -Rg1 (16), -Rg2 (17), and -Rh1 (18), and vinaginsenoside-R15 (19)], and oleanene ginsenosides [calenduloside-B (20) and ginsenoside-Ro (21)] through the interpretation of spectroscopic analysis. The configuration of the sugar linkages in each saponin was established on the basic of chemical and spectroscopic data. Among them, compounds 1, 8, 10, 11, 12, 19, and 20 were isolated for the first time from P. ginseng root.
Chromatography
;
Chromatography, Liquid
;
Ginsenosides
;
Magnetic Resonance Spectroscopy
;
Medicine, Korean Traditional
;
Panax*
;
Saponins*
10.Phytochemical Identification from Boehmeria nivea Leaves and Analysis of (-)-Loliolide by HPLC.
Sunghun CHO ; Dong Gu LEE ; Yong Su JUNG ; Ho Bang KIM ; Eun Ju CHO ; Sanghyun LEE
Natural Product Sciences 2016;22(2):134-139
Phytochemicals were isolated from leaves of the fiber crop, ramie (Boehmeria nivea, Bn), using open column chromatography and medium pressure liquid chromatography. Their structures were identified as β-sitosterol, (-)-loliolide, rutin, and pyrimidinedione by MS, ¹H-, and ¹³C-NMR spectroscopic analysis. Among them, (-)-loliolide was isolated for the first time from B. nivea. A content analysis of (-)-loliolide in B. nivea collected from different regions and harvest times was conducted by HPLC. The highest content of (-)-loliolide was found in Bn-23 harvested in September. These results will be helpful to use the plant which harvest in September as a high content phytochemical additive in food, health supplements, and medicinal products.
Boehmeria*
;
Chromatography
;
Chromatography, High Pressure Liquid*
;
Chromatography, Liquid
;
Phytochemicals
;
Plants
;
Rutin
;
Urticaceae