• Title/Summary/Keyword: University Archives

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Effect of Active Synthetic 2-Substituted Quinazolinones on Anti-Platelet Aggregation and the Inhibition of Superoxide Anion Generation by Neutrophils

  • Chang, Fang-Rong;Wu, Chin-Chung;Hwang, Tsong-Long;Patnam, Ramesh;Kuo, Reen-Yen;Wang, Wei-Ya;Lan, Yu-Hsuan;Wu, Yang-Chang
    • Archives of Pharmacal Research
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    • v.26 no.7
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    • pp.511-515
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    • 2003
  • Quinazolinones, 2-substituted and 3-substituted, mainly synthesized by microwave irradiation, were subjected to anti-platelet aggregation and inhibition of superoxide anion generation assays. Interestingly, 2-phenyl-4-quinazolinone (4) exhibited significant inhibitory activities toward platelet aggregation and neutrophil activation, and it might therefore serve as a prototype lead compound.

Extensive and aggressive growth of adenoid cystic carcinoma in the lacrimal gland

  • Park, Jonghyun;Kim, Han Koo;Kim, Woo Seob;Bae, Tae Hui
    • Archives of Craniofacial Surgery
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    • v.21 no.2
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    • pp.114-118
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    • 2020
  • Adenoid cystic carcinoma (ACC) in the lacrimal gland is a very rare disease with poor overall prognosis. Its primary treatment is surgical excision, including orbital exenteration and radical orbitectomy, which is combined with radiotherapy and chemotherapy. Age, histopathologic type, bone invasion, and tumor extent are known factors that affect the prognosis of ACC. Furthermore, perineural invasion is highly associated with local tumor recurrence and tumor base invasion. Here, we report a rare case of ACC in the lacrimal gland with superior sagittal sinus invasion that repeatedly recurred after the surgical excision.

Solanoflavone, A New Biflavonol Glycoside from Solanum melongena: Seeking for Anti-Inflammatory Components

  • Shen Guanghai;Kiem Phan Van;Cai Xing-Fu;Li Gao;Dat Nguyen Tien;Choi Yeon A;Lee Young Mi;Park Yong Ki;Kim Young Ho
    • Archives of Pharmacal Research
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    • v.28 no.6
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    • pp.657-659
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    • 2005
  • A new biflavonol glycoside named as solanoflavone (1) was isolated from aerial part of Solanum melongena. The chemical structure was elucidated as isorhamnetin-3-O-$\beta$-D-glucopyranoside-(4'$\to$O$\to$4"')-galangin-3"-O-$\to$-D-glucopyranoside on the basis of physicochemical and spectroscopic methods, including 2D NMR spectral techniques.

Protective Constituents Against Sepsis in Mice from the Root Cortex of Paeonia suffruticosa

  • Li, Gao;Seo, Chang-Seob;Lee, Kyeung-Seon;Kim, Hyo-Jin;Chang, Hyun-Wook;Jung, Jun-Sub;Song, Dong-Keun;Son, Jong-Keun
    • Archives of Pharmacal Research
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    • v.27 no.11
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    • pp.1123-1126
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    • 2004
  • The bioassay-guided fractionation of protective agents against sepsis-induced lethality from the root cortex of Paeonia suffruticosa ANDREWS (Ranunculaceae) led to the isolation of eight known compounds: paeonol (1), 2,5-dihydroxy-4-methoxyacetophenone (2), acetovanillone (3), paeonoside (4), paeoniflorin (5), oxypaeoniflorin (6), apiopaeonoside (7), and methyl 3-hydroxy-4-methoxybenzoate (8). Among them, 3 showed the highest survival rate (100% with a dose of 30 mg/kg versus 17% for the control experiment) and reduced alanine aminotransferase level to be a half of the control value on the sepsis model induced by lipopolysaccharide/D-galactosamine.

Multiple foreign bodies causing an orocutaneous fistula of the cheek

  • Kim, Woo Ju;Kim, Woo Seob;Kim, Han Koo;Bae, Tae Hui
    • Archives of Craniofacial Surgery
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    • v.19 no.2
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    • pp.139-142
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    • 2018
  • Foreign bodies impacted in the maxillofacial region are often a diagnostic challenge. They can be a source of chronic inflammatory reactions and infections leading to the formation of an orocutaneous fistula. Such orocutaneous fistulas cause significant morbidity in most patients, eventually requiring surgery. Recently, we encountered a very rare case of an orocutaneous fistula caused by multiple foreign bodies in the cheek. Precise removal of the foreign bodies was required, and a double-sided anterolateral thigh free flap was used to reconstruct the defect. Surgeons should be aware of the complications of multiple foreign bodies and should be able to diagnose these on careful clinical examination.

Synthesis, Cytotoxicity and Structure-Activity Relationship Study of Terpyridines

  • Zhao, Long-Xuan;Sherchan, Jyoti;Park, Jung-Ki;Jahng, Yurng-Dong;Jeong, Byeong-Seon;Jeong, Tae-Cheon;Lee, Chong-Soon;Lee, Eung-Seok
    • Archives of Pharmacal Research
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    • v.29 no.12
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    • pp.1091-1095
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    • 2006
  • For the development of novel antitumor agents, we designed and synthesized terpyridines, and their biological activities were evaluated. Although most of the newly prepared terpyridines showed strong cytotoxicity against several human cancer cell lines, [2,2';6',2"]-terpyridine displayed the most significant cytotoxicity.

Immunomodulating Activities of Brazilin in vitro

  • Moon, Chang-Kiu;Mock, Myung-Soo;Yang, Kyung-Mee;Han, Hye-Seung;Won, Hyeon-Soon;Kim, Ji-Young;Chung, Jin-Ho;Moon, Chang-Hyun
    • Archives of Pharmacal Research
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    • v.15 no.4
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    • pp.283-288
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    • 1992
  • This work was performed to investigate the effects of brazilin in vitro on mitrogen-induced proliferation, ConA-induced TCGF release and responsiveness to recombinant-induced proliferation, ConA-induced TCGF release and responsiveness to recombinant IL-2 using splenocytes from C57BL/6 female mice. Brazilin (29-80 ng/ml) caused a noticeable increase in TCGF production of splenocytes, but did not affect responsivness to recombinant IL-2, the expression of ConA-induced high affinity IL-2 receptor and mitogen-induced proliferation of splenocytes.

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Inhibitory Activity of Isorhamnetin from Persicaria thunbergii on Farnesyl Protein Transferase

  • Oh Hyun Mi;Kwon Byoung-Mog;Baek Nam-In;Kim Sung-Hoon;Chung In-Sik;Park Mi-Hyun;Park Hee Wook;Lee Jae Hyeok;Park Hye Won;Kim Eun Jeong;Kim Dae Keun
    • Archives of Pharmacal Research
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    • v.28 no.2
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    • pp.169-171
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    • 2005
  • The methanolic extract of the aerial parts of Persicaria thunbergii was found to show inhibitory activity on Farnesyl Protein Transferase (FPTase). Bioassay-guided fractionation of the methanolic extract resulted in the isolation of isorhamnetin, as an inhibitor on FPTase. This compound inhibited FPTase activity in a dose-dependent manner, and the $IC_{50}$ value of isorhamnetin was $37.5\;{\mu}M$.

Diastereoselective Synthesis of Polysubstituted Pyrrolidinone as a Key Intermediate for the Anticancer Agents by Palladium(II)­Catalyzed Carboxylation

  • Choi Dong-Rack;Lee Kee-Young;Chung Yun-Sung;Joo Jae-Eun;Kim Yong-Hyun;Oh Chang-Young;Lee Yiu-Suk;Ham Won-Hun
    • Archives of Pharmacal Research
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    • v.28 no.2
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    • pp.151-158
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    • 2005
  • Palladium(II)-catalyzed carboxylation of chiral olefins 6a-d has been examined under various conditions. In the weak basic condition ($K_{2}CO_3$), 7a-d were obtained in good yields. Alternatively, in the strong basic condition, pyrrolidinones 8a-d were obtained resulting in excellent yields and with high diastereoselectivity.

Inducible Nitric Oxide Synthase Inhibitor form Mela azedarach var. Japonica

  • Kwon, Hak-Cheol;Lee, Byeong-Gon;Kim, Seung-Hee;Jung, Chil-Mann;Hong, Sung-Youl;Han, Jeung-Whan;Lee, Hyang-Woo;Zee, Ok-Pyo;Lee, Kang-Ro
    • Archives of Pharmacal Research
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    • v.22 no.4
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    • pp.410-413
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    • 1999
  • In bioassay-guided search for inducible nitric oxide synthase (iNOS) inhibitory compounds from higher plants of South Korea, two $\beta$-carboline (2) have been isolated form the cortex of Melia azedarach var. japonica. The structures of these compounds were elucidated on the basis of spectroscopic data. Compounds 1 to 2 showed marked inhibitory activity of iNOS on LPS-and interferon-${\gamma}$-stimulated RAW 264.7 cells.

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