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Cholinesterase Inhibitory Activity of Two Farnesylacetone Derivatives from the Brown Alga Sargassum sagamianum

  • Ryu, Geon-Seek;Park, Soo-Hee;Kim, Eun-Sook;Choi, Byoung-Wook;Ryu, Shi-Yong;Lee, Bong-Ho
    • Archives of Pharmacal Research
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    • v.26 no.10
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    • pp.796-799
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    • 2003
  • Two known farnesylacetone derivatives (1 and 2) were isolated from the Korean brown alga Sargassum sagamianum off Jeju Island, Korea. Compounds 1 and 2 were identified as (5E,10Z)-6, 10, 14-trimethylpentadeca-5, 10-dien-2, 12-dione and (5E,9E,13E)-6, 10,4-trimethylpentadeca-5,9,13-trien-2,12-dione, respectively, by comparison with the literature data. Compounds 1 and 2 showed moderate acetylcholinesterase and butyrylcholinesterase inhibitory activities with $IC_{50}$ values of 65.0∼48.0 and 34.0∼23.0 $\muM$, respectively.

Indolyl Alkaloid Derivatives, $N_b-Acetyltryptamine$ and Oxaline from a Marine-Derived Fungus

  • Li, Yong;Li, Xi-Feng;Kim, Dong-Soo;Choi, Hong-Dae;Son, Byeng-Wha
    • Archives of Pharmacal Research
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    • v.26 no.1
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    • pp.21-23
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    • 2003
  • Indolyl alkaloids, $N_b-acetyltryptamine$ (1) and the known oxaline (2) have been isolated from the organic extract of the broth of an unidentified fungus collected from the surface of the marine red alga Gracilaria verrucosa. The structure of $N_{b}$-acetyltryptamine (1) was assigned on the basis of comprehensive spectroscopic analyses.s.

Antioxidant and Memory Enhancing Effects of Purple Sweet Potato Anthocyanin and Cordyceps Mushroom Extract

  • Cho, Jung-Sook;Kang, Jong-Seong;Long, Pham-Hoai;Jhang, Jing;Back, Yi-Ho;Chung, Kyeong-Soo
    • Archives of Pharmacal Research
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    • v.26 no.10
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    • pp.821-825
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    • 2003
  • The effects of purple sweet potato anthocyanin (SPA) and Cordyceps mushroom extract (CME) on lipid peroxidation, 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals and cognitive deficits were examined. Both SPA and CME exhibited DPPH radical scavenging activities with similar potency. In contrast, only SPA was shown to effectively inhibit lipid peroxidation initiated by $Fe^{2+}$ and ascorbic acid in rat brain homogenates. Furthermore, SPA markedly enhanced cognitive performance, assessed by passive avoidance test in ethanol-treated mice. Combined treatments with SPA and CME did not significantly influence the effects of SPA alone. These results demonstrate that anthocyanin prepared from purple sweet potato exhibits memory enhancing effects, which may be associated with its antioxidant properties.

Cytotoxic Terpene Hydroperoxides from the Aerial Parts of Aster spathulifolius

  • Lee, Sung-Ok;Choi, Sang-Zin;Choi, Sang-Un;Kim, Gun-Hee;Kim, Young-Choong;Lee, Kang-Ro
    • Archives of Pharmacal Research
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    • v.29 no.10
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    • pp.845-848
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    • 2006
  • Three new sesquiterpene hydroperoxides, 1-[3-(2-hydroperoxy-3-methylbut-3-en)-4-hydroxyphenyl]ethanone (2), $7{\beta}-hydroperoxy-eudesma-11-en-4-ol$ (3), and $7{\alpha}-hydroperoxymanool$ (4), together with three known compounds, germacrone (1), ent-germacra-4(15),5,10(14)-trien-$1{\alpha}$-ol (5) and teucdiol A (6) were isolated from the aerial parts of Aster spathulifolius (Compositae). Their structures were characterized using chemical and spectroscopic methods. The isolated compounds were tested for their cytotoxicity against five human tumor cell lines in vitro using a SRB method. The two new compounds, 3 and 4, showed moderate cytotoxicity against human cancer cells with $ED_{50}$ values ranging from 0.24 to $13.27\;{\mu}g/mL$.

Antibacterial Compounds from the Leaves of Acanthopanax senticosus

  • Lee, Sang-Hyun;Shin, Dong-Sun;Oh, Ki-Bong;Shin, Kuk-Hyun
    • Archives of Pharmacal Research
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    • v.26 no.1
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    • pp.40-42
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    • 2003
  • Chiisanogenin (1), hyperin (2) and chiisanoside (3) were isolated from the leaves of Acanthopanax senticosus, and were tested for their inhibitory activities against 6 strains of bacteria. Among them, chiisanogenin (1) revealed broad but moderate antibacterial activities against G(+) and G(-) bacteria, the minimum inhibitory concentration (MIC) being in the range of 50-100 $\mu\textrm{g}$/ml.

Quantitative Determination of Salidroside and Tyrosol from the Underground Part of Rhodiola rosea by High Performance Liquid Chromatography

  • Linh, Pham-Tuan;Kim, Young-Ho;Hong, Seon-Pyo;Jian, Jiang-Ji;Kang, Jong-Seong
    • Archives of Pharmacal Research
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    • v.23 no.4
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    • pp.349-352
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    • 2000
  • A reversed-phase high performance liquid chromatographic method was developed to determine salidroside and tyrosol simultaneously in the Rhodiola rosea. The optimum condition was Nova-pak $C_18$as stationary phase, 6.5% methanol in water as mobile phase and detection at UV 225 nm. The identification was carried out by comparing the retention time and LC/MS spectrum of the relevant peaks with those of isolated standards. The contents of salidroside and tyrosol in the samples gathered from various area in China were ranged over 1.3-11.1 ${m}g/g$ and 0.3-2.2 ${m}g/g$, respectively.

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Venous Occlusion Detected by Caregiver with Implantable Doppler in a Buried Free Flap

  • Hur, Su Won;Kim, Tae Gon;Lee, Jun Ho;Chung, Kyu Jin;Kim, Yong-Ha
    • Archives of Craniofacial Surgery
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    • v.15 no.3
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    • pp.121-124
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    • 2014
  • The use of the implantable Doppler device eases the burden of free flap monitoring, and allows caregivers to notify healthcare personnel of a potential vascular event. A 24-year-old female patient underwent anterolateral thigh adipofascial flap surgery to provide a buried flap on the left temporal area for a depressed and infected skull wound. The author was able to salvage the flap from two venous occlusions, which was made possible by early notifications from the caregiver who reported changes in the Doppler signal.

Rapidly growing giant pilomatricoma in the right parotid region of a pregnant woman

  • Koh, In Suk;Cho, Hwa Jin;Kim, Jin Woo
    • Archives of Craniofacial Surgery
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    • v.21 no.3
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    • pp.176-179
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    • 2020
  • Pilomatricoma is a benign tumor arising from the primitive basal cells of the epidermis that differentiate into hair matrix cells. Mutations in the CTNNB1 gene, which encodes β-catenin (a protein involved in hair growth), play an etiological role in the development of pilomatricoma. A 34-year-old woman presenting with a mass in the right parotid region underwent an excisional biopsy. The mass was conclusively diagnosed as pilomatricoma. During pregnancy, the mass grew from 1 cm to 5 cm in diameter and was accompanied by pain and tenderness. The growth may have been facilitated by the increased production of estrogen and progesterone, which bind to receptors located in the outer root sheath cells of the hair follicles. No recurrence was observed during 6 months of follow-up.

A Potent Anti-diabetic Agent from Kalopanax pictus

  • Park, Hee-Juhn;Kim, Dong-Hyun;Choi, Jong-Won;Park, Jong-Hee;Han, Yong-Nam
    • Archives of Pharmacal Research
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    • v.21 no.1
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    • pp.24-29
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    • 1998
  • To search for the anti-diabetic principle from the stem bark of Kalopanax pictus, seven kinds of chemical constituents including hederagenin glycosides and phenolic glycosides wre isolated. The anti-diabetic evaluation of these isoltes in the streptozotocin-induced diabetic rats exhibited that kalopanaxsaponin A has a potent anti-diabetic activity in contrast to a mild activity of hederagenin. In addition, significant hypocholesterolemic and hypolipidemic activities of kalopanaxsaponin A and hederagenin were observed. The structure-activity relationship of kalopanaxsaponin A was also investigated in the present work.

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Reduced Anti-inflammatory Activity of Acetylsalicylic Acid Maltol Ester, Aspalatone

  • Han, Byung-Hoon;Suh, Dae-Yeon;Yang, Hyun-Ok;Lee, Song-Jin;Kim, Hyun-Pyo
    • Archives of Pharmacal Research
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    • v.17 no.3
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    • pp.166-169
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    • 1994
  • The anti-inflammatory activity of acetylsalicylic acid maltol ester (aspalatone), a potential anti-thombotic agent, was studied using the several experimental animal models of inflammation. By oral administration, aspalatone was found to possess the weak anti-inflammatory activity in models of an acute inflammation, in which aspalatone showed approximately one-third to one-fourth of the anti-inflammatory activity of aspirin. Aspalatone (200 mg/kg/day) and aspirin (50 mg/kg/day), however, did not show the inhibitory activity against granuloma fomation and adjuvant-induced arthritis.

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