• 제목/요약/키워드: chinensis

검색결과 1,589건 처리시간 0.026초

참복속(genus Takifugu) 어류 3종과 미동정 1종의 형태 및 유전학적 비교 (Morphological and Molecular Comparison among Three Species and One Unidentified Takifugu Species)

  • 백정익;한경호;이성훈;김진구
    • 한국수산과학회지
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    • 제51권4호
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    • pp.404-410
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    • 2018
  • Takifugu rubripes, T. chinensis, T. pseudommus and an unidentified species were morphologically and genetically studied. Morphology was compared using external morphology and the genetic analysis was conducted using mitochondrial DNA cytochrome oxidase I (COI) and cytochrome b (Cyt b). The morphological characteristics of T. rubripes, T. chinensis and T. pseudommus were confirmed, as reported previously. The unidentified species was confirmed to have the characteristics of T. rubripes and T. chinensis. The COI sequences of the four species were 99-100% similar; genetic distance was d=0.0000 and Cyt b genetic distance was d=0.0000-0.00834. Species in the phylogenetic tree belonging to the same group could not be classified genetically. In conclusion, the unidentified species was considered to be a hybrid between T. rubripes and T. chinensis.

딱지꽃 (Potentilla chinensis) 추출물의 항염증 효과 (Anti-Inflammatory Effect of Chloroform Extract from Potentilla chinensis)

  • 강창호;한상현;소재성
    • KSBB Journal
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    • 제28권1호
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    • pp.13-17
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    • 2013
  • In this study, we investigated the anti-inflammation effect of Potentilla chinensis (PC) on Raw264.7 macrophage cells. Ethanol extract of PC decreased the production of nitric oxide (NO) in LPS-stimulated RAW264.7 cells. Ethanol extract was fractioned by n-hexane, chloroform, ethyl acetate, n-butanol, water and each fraction was tested for inhibitory effects on inflammation. Among the sequential solvent fractions, PC chloroform extracts (50, 100, 300, and 500 ${\mu}g/mL$) significantly suppressed LPS-stimulated production of NO. During the entire experimental period, 200 and 300 ${\mu}g/mL$ of PC chloroform extracts had no cytotoxicity. LPS-induced NO and prostaglandin $E_2$ ($PGE_2$) production were inhibited by PC chloroform extracts up to 50% and 90% of these productions, respectively. PC chloroform extracts reduced the expression of iNOS and COX-2 gene. These results suggest that PC chloroform extracts exhibit strong effects of anti-inflammation and can be a potential candidate in the treatment of acute and chronic inflammatory diseases.

Antioxidant Activities of Isoflavones from the Rhizomes of Belamcanda chinensis on Carbon Tetrachloride-Induced Hepatic Injury in Rats

  • Jung, Sang-Hoon;Lee, Yeon-Sil;Lim, Soon-Sung;Lee, Sanghyun;Shin, Kuk-Hyun;Kim, Yeong-Shik
    • Archives of Pharmacal Research
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    • 제27권2호
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    • pp.184-188
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    • 2004
  • The present study was carried out to clarify whether tectorigenin and tectoridin isolated from the rhizomes of Belamcanda chinensis (Iridaceae) inhibit hepatic damage induced by carbon tetrachloride ($CCl_4$)-intoxication in rats by the experimental methods in vitro and in vivo. Tectorigenin and tectoridin exhibited a significant decrease in serum transaminase activities elevated by hepatic damage induced by $CCl_4$-intoxication in rats, as well as in a lipid peroxidation causing a significant decrease in malondialdehyde (MDA) production by thiobarbituric acid (TBA)-reactant assay. Both compounds also showed strong increase in the antioxidant enzymes such as hepatic cytosolic superoxide dismutase (SOD), catalase and glutathione peroxidase (GSH-px) activities in $CCl_4$-intoxicated rats. These results suggested that tectorigenin and tectoridin isolated from the rhizomes of B. chinensis possess not only the antioxidative, but also the hepatoprotective activities in $CCl_4$ -intoxicated rats.

A taxonomic Reinvestigation of the Collared Many-toothed Snake Sibynophis collaris Gray (Reptiles: Serpentes: Colubridae) from Jeju Island, Korea

  • Kim, Byoung-Soo;Oh, Hong-Shik
    • Animal cells and systems
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    • 제10권3호
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    • pp.121-123
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    • 2006
  • In this study we reinvestigated the taxonomy of the collared many-toothed snake (Korean name: Bibaribem) of Jeju Island, Korea. The Bibari-bem is a colubrid indigenous to Jeju Island and was first assigned to S. collaris Gray. However, the geographic distribution of S. collaris is not continuous with the Korean peninsula, making it doubtful that Bibari-bem should be assigned to it. Some herpetologists have suggested that Bibari-bem may instead belong to the closely related S. chinensis G?nther. To resolve this conflict, we compared the diagnostic characteristics of S. collaris and S. chinensis as described in the literature with the characteristics of individuals collected on Jeju Island. We collected six individuals with one preocular, two postocular, two anterior temporal, and no lower ocular scales. Five individuals had nine (3-3-3 form) supralabials, among which fourth to sixth are touching the orbit and the ninth is the largest. One individual had eight (2-3-3 form) supralabials, third to fifth touching the orbit, with the eighth being the largest. These data suggest that Bibari-bem is not S. collaris, but S. chinensis.

황련염색 피혁물의 가지처리에 관한 연구: 우피의 염색성과 가지처리에 의한 물성 변화에 관하여 (A Study on Fatliquoring Cow Skin Dyed with Natural Coptis Chinensis Franch: Dyeability and Changes in the Physical Properties by Fatliquoring of Cow Skin)

  • 조성교;김병희
    • 대한가정학회지
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    • 제50권2호
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    • pp.85-92
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    • 2012
  • This was a study examining the fatliquoring of natural dyed cow skin with Coptis chinensis Franch. The K/S according to optimal dyeing condition, mordants and mordanting method was measured. And the surface, sections, tensile strength, elongation, stiffness and colorfastness according to post-dyeing fatliquoring were observed. The optimal conditions include 300%(o.w.f.), $50^{\circ}C$, 30 minites. Fe-simmordanting showed the highest dyeability. Coptis chinensis Franch showed a yellow color regardless of mordants and mordanting methods. Tensile strength and elongation increased in the case of simmordanting compared with untreated and the process of fatliquoring further increased. The softness significantly increased when fatliquored. Shrinkage was slightly reduced when dyed, but showed almost no change with fatliquoring. Lastly, color fastness increased overall with mordanting and partly increased with fatliquoring. The rubbing and light fastness were excellent Cu- mordanting, and drycleaning fastness also improved with Cr-mordanting.

Proteinase 활성수용체-2로 유발된 백서족척 부종에 미치는 위릉채의 항염효과 (Anti-inflammatory Effect of Potentillae Chinensis Herba Water Extract on the Proteinase-activated Receptor2-mediated Paw Edema)

  • 임종필;이홍규;전훈;임보라
    • 동의생리병리학회지
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    • 제23권6호
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    • pp.1444-1448
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    • 2009
  • Potentilla chinensis Ser. (Rosaceae) has long been used for a remedy of diarrhea and inflammation in Korea. In this study, the anti-inflammatory effects of the Potentillae chinensis Herba water extract (PCX) was investigated in proteinase-activated receptor-2 (PAR2)-mediated rat paw edema. Paw edema was induced by injection of trypsin or trans-cinnamoyl-LIGRLO-$NH_2$ (tc-$NH_2$) into the hind paw of rats. PCX (10, 50, 100 and 200 mg/kg) was orally administered 1 h before the induction of inflammation. At doses of 50, 100 and 200 mg/kg, PCX showed significant inhibition on both change in paw volume and vascular permeability. PCX (100 mg/kg) significantly inhibited PAR2 agonists-induced myeloperoxidase (MPO) activity in paw tissue. These results indicate that PCX has an anti-inflammatory action in PAR2-mediated paw edema.

향나무 심재 메탄올추출물의 염색성과 기능성 (Dyeing Properties and Functionality of Methanol Extract from Juniperus chinensis Heartwood)

  • 남기연;이정순
    • 한국염색가공학회지
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    • 제25권3호
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    • pp.194-205
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    • 2013
  • In this study, we report dyeing properties and functionality of cotton and silk fabrics dyed with methanol extract from Juniperus chinensis heartwood. Non-aqueous dye of Juniperus chinensis heartwood extracted with methanol was expressed reddish color. It showed relatively good affinity to silk than cotton. Dye uptake of cotton and silk continued to increase according to the increase of the dye concentration. Cotton was not affected by the dyeing temperature and time, however, dye uptake of silk was increased as the dyeing time and temperature were increased. Dye uptake of cotton and silk were the highest at pH 8 and pH 6 respectively. Dyed fabrics showed various colors depending on mordant types and mordant concentration. Washing, light and perspiration fastness were not good. However, rubbing and dry cleaning fastness showed relatively good grade. Dyed fabrics of ultraviolet-cut ability and deodorant ability were improved. Also, dyed fabrics showed very good antimicrobial abilities of 99.9%.

향나무 심재 열수추출물의 염색성과 기능성 (Dyeing Properties and Functionality of Hot-water Extract from Juniperus chinensis Heartwood)

  • 남기연;이정순
    • 한국염색가공학회지
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    • 제25권3호
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    • pp.181-193
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    • 2013
  • The purpose of this study is to investigate dyeing properties and functionality of cotton and silk fabrics dyed with hot-water extract from Juniperus chinensis heartwood. Water-soluble dye of Juniperus chinensis heartwood extracted with distilled water was expressed YR color series. Dye uptake of cotton continued to increase according to the increase of the dye concentration. Its variation trends were shown to be similar to the isothermal absorption curve of the Freundlich. Dye uptake of silk was better than cotton, increased depending on increasing concentration of the dye, dyeing time and temperature. Its variation trends were shown to be similar to the isothermal absorption curve of the Langmuir. As the pH increased, the dye uptake of fabrics reduced and showed increased on red tinge. Colors of the dyed fabrics were various, depending on dye concentration and the mordant type and mordant concentration. Washing fastness, light fastness and perspiration fastness were not good. However, rubbing and dry cleaning fastness showed relatively good grade. Dyed fabrics of ultraviolet-cut ability and deodorant ability were improved. And dyed fabrics showed antimicrobial abilities of 99.9% against Staphylococcus aureus.

Identification of Aecial Host Ranges of Four Korean Gymnosporangium Species Based on the Artificial Inoculation with Teliospores Obtained from Various Forms of Telia

  • Yun, Hye-Young;Lee, Seung-Kyu;Lee, Kyung-Joon
    • The Plant Pathology Journal
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    • 제21권4호
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    • pp.310-316
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    • 2005
  • The objectives of this study were to identify the aecial host ranges of four Korean Gymnosporangium species, G. asiaticum, G. cornutum, Gjaponicum and Gyamadae, and to verify the morphological characteristics of telia as diagnostic keys to the species. Thirteen Korean Rosaceous woody species were artificially inoculated with teliospores obtained from Juniperus species. There was high specificity between telial and aecial hosts and the fungal species, providing the first experimental proof on host alternation of these rust fungi in Korea. Telia on the witches' broom and on the small galls were identified as new telial characteristics in G asiaticum and in G. yamadae, respectively. Aecial hosts of G. asiaticum and G. yamadae showed varying responses in their susceptibility and in the days required for formation and duration of spermogonia and aecia after inoculation. Four telial host species in Juniperus were confirmed for the first time in Korea, which include J. chinensis var. kaizuka, J. chinensis var. horizontalis and J. chinensis var. globosa for G. asiaticum; and J. chinensis var. kaizuka for G. yamadae.

삼백초 약침액이 B16F10 흑색종세포의 멜라닌 합성에 미치는 영향 (Effect of Saururus chinensis BAILL Extract for Pharmacopuncture on the melanogenesis in B16F10 cells)

  • 김수경;김대성;우원홍;문연자
    • Korean Journal of Acupuncture
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    • 제29권1호
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    • pp.117-130
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    • 2012
  • Objectives : The purpose of this study was to investigate the melanogenesis inhibition effect of Saururus chinensis BAILL (SC) on in B16F10 melanoma cells. Methods : SC was fractionated ethanol extract by the hexane, ethyl acetate, butanol and water. We confirmed the inhibitory effect of tyrosinase activity and melanogenesis of all fraction samples. Results : Hexane fraction of Saururus chinensis BAILL (HSC), ethyl acetate of SC (ESC), and butanol of SC (BSC) were discovered to inhibit tysoinase activity and melanogenesis in the absence or presence of ${\alpha}$-MSH. However, water fraction of SC (WSC) did not affect tyrosinase activity and melanogenesis. In addition, all fractions did not inhibit the catalytic activity of cell-free tyrosinase from B16F10 melanoma cell lines. Conclusions : These results suggest that HSC, ESC and BSC reduce pigmentation by indirectly regulating tyrosinase.