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김정두,박미경 대구효성가톨릭대학교 응용과학연구소 1994 응용과학연구논문집 Vol.3 No.-
This paper discusses the interface module for Micro-SEARCH as a component of Intelligent Tutoring System. Micro-SEARCH is a system which manages and operates the learning of subjects concerning nondeterministic tasks in the field of mathematics, such as Trigonometry, Logical Expression, Algebra, Integration, and Differentiation. The study aims to implement the module with the visual display functions on windows through object-oriented programming techniques, providing the users with a graphic-oriented interface. The evaluation of designed interface module showed the convenience and efficiency of the user environment for the management and operation of the system.
정환묵,박미경 대구효성가톨릭대학교 응용과학연구소 1998 응용과학연구논문집 Vol.6 No.2
Since the multiple valued logic is compare with two-valued logic, it is PC high speed processing and increasing information density greatly in logic networks. In this paper, we represent the multiple-valued that gray level necessary image process the benefit of multiple-valued logic.
Park, Hwa-Jin,Rhee, Man-Hee,Park, Kyeong-Mee,Nam, Ki-Yeul,Park, Ki-Hyun The Korean Society of Ginseng 1993 Journal of Ginseng Research Vol.17 No.2
Panaxadiol (PD) from Korean red ginseng C.A. Meyer did not control the concentration of cytosolic free $Ca^{2+}$ influxes by thrombin (5 $\mu$/ml). However, PD strongly inhibited the synthesis of thromboxane. $A_2$ (TX$A_2$) in the aggregation of human platelets induced by thrombin (5 $\mu$/ml). These rexults suggest that PD blocks the any Pathway transforming to TX$A_2$ from arachidonic acid (AA) which release out of plasma membrane phospholipids by $Ca^{2+}$-dependent phospholipase C or phospholipase $A_2$. It may be also concluded that PD has the antiplatelet function by inhibiting the synthesis of TX$A_2$, which known to be the potent stimulator of the aggregation of human platelet.
Park, Kyeong-Mee,Rhee, Man-Hee,Shin, Han-Jae,Song, Yong-Bum,Hyun, Hak-Chul,Park, Ki-Hyun,Cho, Hyun-Jeong,Choi, Sun-A,Kang, Hyo-Chan,Kim, Kyoung-Jin,Kim, Hyeong-Soo,Kang, Hee-Jin,Ok, Woo-Jeong,Lee, Don The Korean Society of Ginseng 2008 Journal of Ginseng Research Vol.32 No.2
In this study, we have investigated the effect of panaxatriol (PT) on phosphoinositides (PIS) breakdown and $Ca^{2+}$-elevation in thrombin-induced platelet aggregation. Thrombin (5U/ml), a potent platelet agonist which activates phospholipase $C_{\beta}$ via protease activated receptor (PAR), hydrolyzed PIS in platelet membrane. The phosphatidylinositol 4, 5-bisphosphate $(PIP_2)$ was hydrolyzed after 10 sec of the thrombin-stimulation, and both the phosphatidylinositol 4-monophosphate (PIP) and phosphatidylinositol (PI) were brokendown after 30 sec of the thrombin-stimulation. However, PT inhibited the thrombin-stimulated hydrolysis of $PIP_2$, PIP, and PI. On the other hand, thrombin increased the level of phosphatidic acid (PA) which is phosphorylated from diacylglycerol (DG) generated by PIS-hydrolysis. However, Pr inhibited the thrombin-increased PA level non-significantly. Thrombin increased cytosolic free $Ca^{2+}([Ca^{2+}])_i$) up to 72% as compared with control $(30.8{\pm}0.9 nM)$ in intact platelet. However, PT (100 ${\mu}g/ml$) inhibited the thrombin-elevated $[Ca^{2+}]_i$ to 100%. These results suggest that PT may have a beneficial effect on platelet aggregation-mediated thrombotic disease by inhibiting thrombin-induced platelet aggregation via suppression of the $[Ca^{2+}]_i$ level and PIS breakdown.
Park, Hwa-Jin,NO, Young-Hee,Rhee, Man-Hee,Park, Kyeong-Mee,Park, Ki-Hyun 생화학분자생물학회 1994 한국생화학회지 Vol.27 No.4
Histone III is a substrate for in vitro phosphorylation by a catalytic fragment of protein kinase C. Protein kinase C-catalyzed phosphorylation of histone III was induced by 50 nM phorbol-12-myristate-13-acetate (PMA), and inhibited by protein fractions and the ginsenosides-$Rb_1$, $-Rg_1$, and $-Rh_2$ from Panax ginseng CA. Meyer. The protein fraction which was extracted with methanol consisted mainly of glycopeptides with molecular weights below 18 KDa. The protein fraction extracted with acetone consisted of 18 KDa polypeptides. Protein fractions and ginsenosides from Panax ginseng CA. Meyer have antitumor effects since the inhibition of protein kinase C is related to the suppression of tumors.
Kyeong-Mee Park,Man-Hee Rhee,Han-Jae Shin,Yong-Bum Song,Hak-Chul Hyun,Ki-Hyun Park,Hyun-Jeong Cho,Sun-A Choi,Hyo-Chan Kang,Kyoung Jin Kim,Hyeong-Soo Kim,Hee-Jin Kang,Woo-Jeong Ok,Dong-Ha Lee,Hwa-Jin P 고려인삼학회 2008 Journal of Ginseng Research Vol.32 No.2
In this study, we have investigated the effect of panaxatriol (PT) on phosphoinositides (PIS) breakdown and Ca<SUP>2+</SUP>-elevation in thrombin-induced platelet aggregation. Thrombin (5U/ml), a potent platelet agonist which activates phospholipase Cβ via protease activated receptor (PAR), hydrolyzed PIS in platelet membrane. The phosphatidylinositol 4, 5-bisphosphate (PIP₂) was hydrolyzed after 10 sec of the thrombin-stimulation, and both the phosphatidylinositol 4-monophosphate (PIP) and phosphatidylinositol (PI) were brokendown after 30 sec of the thrombin-stimulation. However, PT inhibited the thrombin-stimulated hydrolysis of PIP₂, PIP, and PI. On the other hand, thrombin increased the level of phosphatidic acid (PA) which is phosphorylated from diacylglycerol (DG) generated by PIS-hydrolysis. However, PT inhibited the thrombin-increased PA level non-significantly. Thrombin increased cytosolic free Ca<SUP>2+</SUP>[Ca<SUP>2+</SUP>]i) up to 72% as compared with control (30.8±0.9 nM) in intact platelet. However, PT (100 ㎍/ml) inhibited the thrombin-elevated [Ca<SUP>2+</SUP>]i to 100%. These results suggest that PT may have a beneficial effect on platelet aggregation-mediated thrombotic disease by inhibiting thrombin-induced platelet aggregation via suppression of the [Ca<SUP>2+</SUP>]i level and PIS breakdown.
Non-Saponin Fraction from Panax ginseng C.A. Meyer Inhibits Platelet Aggregation
Park, Kyeong-Mee,Rhee, Man-Hee,Park, Hwa-Jin The Korean Society of Ginseng 1993 Journal of Ginseng Research Vol.17 No.3
Hexane, Hexane/diethylether and chloroform fractions from Panax ginseng C.A. Meyer stroungly inhibitied human platelet aggregation induced by a high dose of thrombin (2$\mu$/ml). Chloroform fraction more strongly inhibited the platelet aggregation than the other two fraction among them. There were fatty acid ester and phosphate ester instead of polyacethylene compounds in the chloroform fraction.
Park, Hwa-Jin,Park, Kyeong-Mee,Rhee, Man-Hee,Park, Ki-Hyun The Korean Society of Ginseng 1993 Journal of Ginseng Research Vol.17 No.2
Aqueous fractions from Korean red ginseng inhibited the phosphorylations of 40 KD and 20 KD polypeptides which were induced by phorbol-12-myristate-13-acetate (100 nM) in human platelets. Much more carbohydrates were contained in the aqueous fractions than proteins. An aqueous fraction extracted with methanol, mainly, consists of glycoproteins, molecular weights of which were below 18 KD. We may infer that the aqueous fraction from Korean red ginseng do antitumorous and antiplatelet functions.
Immunomodulatory Effect of Acidic Polysaccharide Fraction from Korean Red Ginseng (Panax ginseng)
Park, Kyeong-Mee,Jeong, Tae-Cheon,Kim, Young-Sook,Shin, Han-Jae,Nam, Ki-Yeul,Park, Jong-Dae The Korean Society of Pharmacognosy 2000 Natural Product Sciences Vol.6 No.1
Effects of red ginseng acidic polysaccharides (RGAP) on immune system were studied. The proliferation of spleen cells was induced by RGAP treatment per se. Cotreatment of lipopolysaccharide $(100\;{\mu}g/ml)$ or concanavalin A $(1\;{\mu}g/ml)$ with RGAP further stimulated the spleen cell proliferation. BALB/c mice treated with RGAP showed a slight splenic hyperplasia and increased antibody forming cell response to sheep red blood cells. Flow cytometry analysis revealed an influx of macrophages in the mice treated with RGAP.
Park, Kyeong-Mee,Choi, Eunhye,Kwak, Eun-Jung,Kim, Seoyul,Park, Wonse,Jeong, Jin-Sun,Kim, Kee-Deog Korean Academy of Oral and Maxillofacial Radiology 2018 Imaging Science in Dentistry Vol.48 No.3
Purpose: The purpose of this study was to evaluate the relationship between masseter muscle thickness, facial morphology, and mandibular morphology in Korean adults using ultrasonography. Materials and Methods: Ultrasonography was used to measure the masseter muscle thickness bilaterally of 40 adults(20 males, 20 females) and was performed in the relaxed and contracted states. Facial photos and panoramic radiography were used for morphological analyses and evaluated for correlations with masseter muscle thickness. We also evaluated the correlations of age, body weight, stature, and body constitution with masseter muscle thickness. Results: In the relaxing, the masseter was $9.8{\pm}1.3mm$ in females and $11.3{\pm}1.2mm$ in males. In the contracted state, it was $12.4{\pm}1.4mm$ in females and $14.7{\pm}1.4mm$ in males. Facial photography showed that bizygomatic facial width over facial height was correlated with masseter muscle thickness in both sexes in the relaxed state, and was statistically significantly correlated with masseter muscle thickness in males in the contracted state. In panoramic radiography, correlations were found between anterior angle length and posterior angle length and masseter muscle thickness in females, and between body length and posterior angle length, between anterior angle length and body length, between ramal length and body length, and between body length and condyle length in males. Conclusion: Masseter muscle thickness was associated with facial and mandibular morphology in both sexes, and with age in males. Ultrasonography can be used effectively to measure masseter muscle thickness.