• Title/Summary/Keyword: Yeungnam

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The Treatment of Giant Middle Cerebral Artery Aneurysm with MDS Coil - Case Report - (기계적 분리코일(MDS coil)을 이용한 소아 거대 중대뇌동맥류의 치료)

  • Choi, Gwang-Shik;Kim, Sung-Ho;Bae, Jang-Ho;Kim, O-Lyong;Choi, Byung-Youn;Cho, Soo-Ho;Byun, Woo-Mok
    • Journal of Yeungnam Medical Science
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    • v.14 no.1
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    • pp.237-244
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    • 1997
  • A 14-year old boy was admitted with stuporous mentality. CT scan, MRI and cerebral angiogram revealed SAH and a giant aneurysm of right middle cerebral artery($4{\times}5{\times}5.3cm$). To minimize surgical risk, endovascular treatment was done with MDS(mechanical detachable system)-spiral coil. Follow up MRI showed intraluminal thrombus formation of the aneurysm.

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Torsade de Pointes Induced by Long-Term Oral Amiodarone Therapy

  • Nam, Jong-Ho;Choi, Yoon-Jung;Kang, Min-Kyu;Jung, Sung-Yun;Kim, Su-Mi;Lee, Sang-Hee;Shin, Dong-Gu
    • Journal of Yeungnam Medical Science
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    • v.28 no.1
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    • pp.90-93
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    • 2011
  • Although amiodarone is generally regarded as safe with a low incidence of associated arrhythmias, torsade de pointes (TdP) has been observed usually in the presence of predisposing factors. We report a case of amiodarone-induced TdP after long-term administration of alow dose of oral amiodarone in the absence of predisposing factors.

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Design, Synthesis and Anticonvulsive Activities of Potential Prodrugs Linked by Two-carbon Chain

  • Zhao, Long-Xuan;Moon, Yoon-Soo;Basnet, Ar-Jun;Park, Jae-Gyu;Kim, Eun-kyung;Kim, Dae-Ok;Jeong, Tae-Cheon;Jahng, Yurng-Dong;Choi, Jong-Won;Lee, Eung-Seok
    • Archives of Pharmacal Research
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    • v.26 no.10
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    • pp.785-795
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    • 2003
  • For the development of new anticonvulsive agents, GABAmimetics such as nipecotic acid, isonipecotic acid, ${\gamma}-aminobutyric$ acid (GABA), ${\gamma}-vinyl$ GABA (vigabatrin) and valproic acid were covalently coupled through an ester bond by a two-carbon linker chain as potential prodrugs and evaluated for their anticonvulsive activities.

A Case of Exit-Site Infection and Abscess by $Mycobacterium$ $abscessus$ in a CAPD Patient (지속적외래복막투석 환자에서 발생한 $Mycobacterium$ $abscessus$에 의한 출구 감염 및 농양 1예)

  • Jung, Sun-Young;Na, Ji-Hoon;Cho, Kyu-Hyang;Park, Jong-Won;Do, Jun-Young;Yun, Kyeung-Woo;Song, In-Wook;Cho, Jeong-Hwan;Son, Chang-Woo
    • Journal of Yeungnam Medical Science
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    • v.26 no.2
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    • pp.137-142
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    • 2009
  • Nontuberculous mycobacterial infections are a rare, but clinically important cause of infections in continuous ambulatory peritoneal dialysis (CAPD) patients. This is typically suspected when a patient does not respond to treatment with the usual antibiotics. We describe here a case of $Mycobacterium$ $abscessus$ exit site infection with abdominal wall abscess formation that was associated with CAPD, which required peritoneal catheter removal, surgical debridement of the abscess and long term antibiotic therapy.

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Inhibitory Effect of Some Natural Polyphenols Isolated from Euphorbiaceae Plants on Melanogenesis (대극과 식물로부터 분리한 천연폴리페놀의 멜라닌 생성 억제효과)

  • Kim, Jeong-Ah;Choi, Ji-Young;Son, Ae-Ryang;Park, Sung-Hee;Xu, Guang-Hua;Lee, Jong-Gu;Oh, In-Suk;Kim, Jin-Joon;Chang, Hyun-Wook;Chung, See-Ryun;Jang, Tae-Soo;Lee, Seung-Ho
    • Korean Journal of Pharmacognosy
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    • v.35 no.2 s.137
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    • pp.157-163
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    • 2004
  • Twenty two polyphenols containing ten gallotannins, seven ellagitannins, two phenylpropanoids and three stilbenes isolated from the higher plants were tested inhibitory effects on melanogenesis in cultured B-16 mouse melanoma cell lines. Among the tested samples, 1-desgalloyleugeniin exhibited the most potent inhibitory effect on melanogenesis in cultured cell lines.

A Novel Clotrimazole-Ioaded Suppository with Effective Anti-tumor Activity

  • Xuan, Jing Ji;Kim, Jong-Tae;Oh, Dong-Hoon;Han, Hong-Hee;Lee, Won-Seok;Lee, Jong-Sook;Rhee, Jong-Dal;Yong, Chul-Soon;Woo, Jong-Soo;Kim, Jung-Ae;Choi, Han-Gon
    • Journal of Pharmaceutical Investigation
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    • v.38 no.5
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    • pp.289-293
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    • 2008
  • To develop a poloxamer-based solid suppository with poloxamer and polyethylene glycol mixtures, the melting point of various formulations composed of P 188 and propylene glycol were investigated. The dissolution and antitumor activity of clotrimazole delivered by the poloxamer-based suppository were performed. The poloxamer mixtures composed of P 188 and propylene glycol were homogeneous phases. P 188 greatly affected the melting point of poloxamer mixtures. In particular, the poloxamer mixture [P 188/propylene glycol(70/30%)] with the melting point of about $32^{\circ}C$ was a solid form at room temperature and instantly melted at physiological temperature. Furthermore, the ratio of P 188/propylene glycol greatly affected the dissolution rates of clotrimazole from poloxamer-based suppository. It gave the more effective anti-tumor activity than conventional PEG-based suppository due to fast dissolution. Thus, the clotrimazole-Ioaded poloxamer-based solid suppository was an effective rectal dosage form with anti-tumor activity.

A Design of High-Frequency Oscillatory Ventilator Using Phase Lock Loop system (위상동기루프 방식을 이용한 고빈도 진동환기 장치의 설계)

  • Lee, Sang-Hag;Jeong, Dong-Gyo;Lee, Joon-Ha;Lee, Kwan-Ho;Kim, Young-Jo;Chung, Jae-Chun;Lee, Hyun-Woo;Lee, Suck-Kang;Lee, Tae-Sug
    • Journal of Yeungnam Medical Science
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    • v.6 no.2
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    • pp.217-222
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    • 1989
  • In this study, high frequency oscillatory ventilator was designed and constructed. Using designed by phase-lock loop system, in order to accurately and easily treat both the outlet volume and rpm. A system has been designed and is being evaluated using CD4046A PLL IC. We use this PLL IC for the purpose of motor controls. The device consists of PLL system, pumping mechanism, piston, cylinder, and special crank shaft are required. This system characteristics were as follows : 1) Frequency : 20-1800rpm. 2) Outlet air volume : 1-50cc.

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Isolation of Melanogenesis Inhibitors from Ponciri Fructus (지실의 멜라닌 생성 억제 물질)

  • Son, Ae-Ryang;Choi, Ji-Young;Kim, Jeong-Ah;Cho, Se-Hoon;Xu, Guang-Hua;Park, Sung-Hee;Chung, See-Ryun;Chung, Tae-Chun;Jahng, Yurng-Dong;Son, Jong-Keun;Lee, Seung-Ho
    • Korean Journal of Pharmacognosy
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    • v.36 no.1 s.140
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    • pp.1-8
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    • 2005
  • To develop an whitening cosmetics, we isolated the melanogenesis inhibitors from the unripe fruits of Poncirus trifoliata (Rutaceae). Isolated compounds were identified as poncirin(l), naringin(2), bis(2-methylheptyl)phthalate(3), avenalumic acid methyl ester(4) by comparison of physical and spectral data with those reported in the literature. Among the isolated compounds, bis(2-methylheptyl)phthalate showed most potent inhibitory effect on the melanogenesis in cultured B-16 mouse melanoma cell lines$(IC_{50},\;36.8\;{\mu}M)$ compared with kojic acid$(IC_{50},\;150\;{\mu}M)$.