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임수진,이웅빈 용인대학교 자연과학연구소 2008 自然科學硏究所論文誌 Vol.13 No.1
Abstract - Mt. Mugap is located 37°23′00″~37°25′00″N in latitude at 127°19′00″~127° 21′30″E in longitude in Gyeonggi-do. The investigated vascular plants consist of total 173 taxa: 3 forms, 21 varieties, 149 species, 133 genera, 63 families, 28 orders, 4 classes. Twelve special plants designated by Environment Ministry were investigated: 4th grade for 4 taxa, 3rd grade for 4 taxa, 2nd grade for 2 taxa, and 1st grade for 2 taxa. As for the useful plants, there were 79 taxa of edible ones(45.7%), 42 taxa of medicinal ones(24.2%), 11 taxa of ornamental ones(6.4%), 41 taxa of industrial ones(23.7%), and 4 taxa of poisonous ones(2.3%) respectively.
In vitro glycosylation of Compound K using galactosyltrasferase, lgtB from Neisseriameningitidis
Su bin Lim,Sumangala Darsandhari,Jae Kyung Sohng 한국당과학회 2016 한국당과학회 학술대회 Vol.2016 No.07
Compound K (CK) is formed by bio-deglycosylation of major protopanaxadiol (PPD)-type ginsenosides (mainly Rb1, Rb2, Rd and Rc). Although it has never been identified in Panax plants, it is the main functional component detected in mammalian blood or organs after oral administration of ginseng or ginsenosides. It possesses remarkable bioactivities like anti-inflammation, hepatoprotection, antidiabetes and anti-cancer activities. It has even been approved by the China Food and Drug Administration to commence clinical trials for arthritis prevention and treatment. Neisseria β (1,4) galactosyltransferase, LgtB introduces galactose into glucose at its 1 position to form lactose. In the present study, we performed the in vitro enzymatic reaction of CK using UDP-D-galactose as a sugar donor and compound K as an acceptor substrate. Reaction products were analyzed by HPLC and TLC and the product was confirmed by high resolution LC-QTOF-ESI/MS, which revealed the addition of one galactose unit into compound K. This is the first study regarding the addition of galactose to protopanaxadiol type ginsenosides.
Su-bin Kim,Chunghwi Yi,Seo-hyun Kim,Gyu-hyun Han,One-bin Lim 한국전문물리치료학회 2023 한국전문물리치료학회지 Vol.30 No.3
Background: In modern society, the use of computers accounts for a large proportion of our daily lives. Although substantial research is being actively conducted on musculoskeletal diseases resulting from computer use, there has been a recent surge in interest in improving the working environment for prevention. Objects: This study aimed to examine the effects of posture correction feedback (PCF) on changes in neck posture and muscle activation during computer typing. Methods: The participants performed a computer typing task in two sessions, each lasting 16 minutes. The participant’s dominant side was photographed and analyzed using ImageJ software to verify neck posture. Surface electromyography (EMG) was used to confirm the par-ticipant’s cervical erector spinae (CES) and upper trapezius muscle activities. The EMG signal was analyzed using the percentage of reference voluntary contraction and amplitude prob-ability distribution function (APDF). In the second session, visual and auditory feedback for posture correction was provided if the neck was flexed by more than 15° in the initial position during computer typing. A 20-minute rest period was provided between the two sessions. Results: The neck angle (p = 0.014), CES muscle activity (p = 0.008), and APDF (p = 0.015) showed significant differences depending on the presence of the PCF. Furthermore, signifi-cant differences were observed regarding the CES muscle activity (p = 0.001) and APDF (p = 0.002) over time. Conclusion: Our study showed that the feedback system can correct poor posture and re-duces unnecessary muscle activation during computer work. The improved neck posture and reduced CES muscle activity observed in this study suggest that neck pain can be prevented. Based on these results, we suggest that the PCF system can be used to prevent neck pain.