• Title/Summary/Keyword: Lycii

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Taxonomic Studies on Cercospora and Allied Genera in Korea (II) (한국산 Cercospora 및 관련 속의 분류학적 연구 (II))

  • Kim, Jeong-Dong;Shin, Hyeon-Dong
    • The Korean Journal of Mycology
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    • v.26 no.3 s.86
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    • pp.342-353
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    • 1998
  • This paper is a contribution towards taxonomic studies on Cercospora and allied genera, and contains ten species of Korean cercosporoid fungi; viz. Cercospora beticola, C. lactucae-sativae, C. lycii, Distocercospora pachyderma, Mycovellosiella passaloroides, Passalora dubia, P. sojina, Phaeoisariopsis griseola, Pseudocercospora atromarginalis, and P. rhoina. Morphological characteristics of taxonomic value are described and drawn for these species to contribute towards a mycological monograph of Korean cercosporoid fungi.

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Induction of apoptosis by dihydro-N-caffeoyltyramine on human leukemia cells

  • Choi, Chul-Yung;Kim, Ji-Young;Lee, Kyung-Jin;Oh, Duk-Hee;Han, Song-Hee;Woo, Eun-Rhan;Jeong, Hye-Gwang
    • Proceedings of the PSK Conference
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    • 2003.10b
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    • pp.120.3-121
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    • 2003
  • Lycii Radicis Cortex, the root bark of Lycium chinense Miller (Solanaceae) is used in oriental medicine as a tonic and is reported to exhibit hypotensive, hypoglycemic, and antipyretic activity. Recently, we have isolated dihydro-N-caffeoyltyramine, a phenolic amide, from the Lycii Radicis Cortex. Treatment with dihydro-N-caffeoyltyramine significantly inhibited the proliferation of human leukemia cell lines HL-60 in a dose-dependent manner. We found also that the growth inhibition of HL-60 by dihydro-N-caffeoyltyramine is associated with induction of apoptosis of cells. (omitted)

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The Study of Free Radical Scavenging Effect of Lycii Fructus by Liver Injury of Rats (백서 간손상에 의한 구기자의 유리자유기 소거능에 관한 연구)

  • Yoon Sang Ju;Jung Sun Yeong;Kim Young Mi;Ha Ki Tae;Kim Cheorl Ho;Kim Dong Wook;Kim June Ki;Choi Dall Yeong
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.17 no.1
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    • pp.91-100
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    • 2003
  • In the present study, we investigated the protective effect of the Lycii Fructus water extracts (LFE) against CCl4-induced hepatotoxicity and the mechanism underlying these protective effects in the rats. The pretreatment of LFE has shown to possess a significant protective effect by lowering the serum alanine and aspartate aminoteansferase (AST and ALT) and alkaline phosphatase (ALP). This hepatoprotective action was confirmed by histological observation, In addition, the pretreatment of LFE prevented the elevation of hepatic malondialdehyde (MDA) formation and the depletion of reduced glutathione (GSH) content and catalase activity in the liver of CC1₄-injected rats. The LFE also displayed hydroxide radical scavenging activity in a dose-dependent manner (IC50 = 83.6 μg/ml), as assayed by electron spin resonance (ESR) spin-trapping technique. Moreover, the expression of cytochrome P450 2E1 (CYP2E1) mRNA, as measured by reverse transcriptase-polymerase chain reaction (RT-PCR), was significantly decreased in the liver of LFE-pretreated rats when compared with that in the liver of control group. Based on these results, it was suggested that the hepatoprotective effects of the LFE may be related to antioxidant effects and regulation of CYP2E1 gene expression.

Effects of Mixture of Lycii Radicis Cortex and Gardeniae Fructus on the Change of HPA-Axis and Catecholamine System in the Forced Swimming Test (지골피(地骨皮)와 치자(梔子) 합제(合劑)가 강제수영부하실험에서 HPA-Axis와 Catecholamine system에 미치는 영향)

  • Oh, Jeong-Jin;Lee, Tae-Hee
    • Herbal Formula Science
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    • v.20 no.1
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    • pp.51-65
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    • 2012
  • Objectives : In this study the antidepressant effects of mixture of Lycii Radicis Cortex and Gardeniae Fructus on the change of HPA-Axis and Catecholamine system was investigated Methods : The forced swimming test was performed. The expression of CRF, c-Fos in the PVN, and TH in the VTA and LC were measured with immunohistochemical method. And the experimental groups were divided into the Extraction after Mix group(A) and Mix after Extraction group(B). The effects of both group were compared. Results : The duration of immobility in the FST was decreased significantly in three groups except B100(P<0.01). B100 was shown the significant increase(P<0.05). The expression of CRF in PVN was decreased significantly in all group(P<0.05~P<0.01). The expression of c-Fos in PVN was decreased in A100, A400 and was increased significantly in B100, B400(P<0.05). The expression of TH in VTA and LC were decreased significantly in all group(P<0.001). Conclusions : Effects of Extraction after Mix group(A) and Mix after Extraction group(B) on the HPA-Axis system and Catecholamine system were validated.

Quality Characteristics and Antioxidative Effects of Dasik added with Lycii Fructus Extract (구기자 추출액을 첨가한 다식의 품질특성 및 항산화 효과)

  • Lee, Young-Sook;Seo, Eun-Ji;Jeon, Seo-Young;Kim, Ae-Jung;Rho, Jeong-Ok
    • Korean Journal of Human Ecology
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    • v.23 no.6
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    • pp.1217-1229
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    • 2014
  • The purpose of this study was to investigate the quality characteristics and antioxidative effect of Dasik prepared with Lycii fructus extract(LD). LD were added in ratios (w/w) of 0(C), 5(LD1), 10(LD2), and 15%(LD3), and then proximate compositions, physicochemical properties, sensory evaluations and antioxidative effect of the Dasik were measured. LD1~LD3 samples showed higher contents of moisture, crude lipid, crude protein and crude ash as well as pH and sugar content compared to control (p<0.001). The total phenol content of LD samples (LD1, 31.5% ; LD2, 66.1% ; and LD3, 69.7%) was higher than that of control (4.71%). DPPH radical scavenging activity of LD3 showed the highest activity of 65.3%, whereas that of control (27.0%) was the lowest among samples. Additionally, ABTS radical scavenging activity of LD samples was higher than that of control (C, 38.9% ; LD1, 53.6%; LD2, 80.5% ; and LD3, 83.3%). The results of texture analysis on all samples showed that control had the highest but LD3 was the lowest (p<0.001). In sensory evaluation, the scores of appearance, flavor, taste and overall preference for LD2 was significantly higher than the samples(C, LD1, and LD2). Form the findings, this study suggests that 10% addition of LD was effective for preparation of Dasik in the aspects of the consumer acceptability and functionality.

Changes of Serum Lipid Profiles after Eating Lycii Fructus in Rats Fed High Fat Diet (구기자 섭취에 의한 고지방식이를 하는 흰쥐의 혈중 지질상태 변화)

  • 김희선
    • Journal of Nutrition and Health
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    • v.31 no.3
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    • pp.263-270
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    • 1998
  • The purpose of this study was to investigate the effect of Lycii fructus on the serum lipid in rats fed high fat diet. We compared the effects of L. fructus and L.fructus water extract both adminstered with high fat diets on rats that had previously been on high fat or standard diets. Two separate experiments were conducted for 6 weeks. respectively. In experiment I, 4 groups of rats were fed experimental diets consisting of either \circled1 6 weeks of a standard diet(control), \circled2 6 weeks of a high-fat diet(HHC), \circled3 3 weeks of a high-fat diet followed by 3 weeks of a high-fat diet containing L. fructus(HHL) or \circled4 6 weeks of a high-fat diet with L. fructus extract in place of water for the last 3 weeks (HHT). In the second set of experiments, a high-fat diet (SHC), high-fat diet containing L.fructus(SHL) or high-fat diet with L. fructus extract in place of water (SHT) were fed for 3 weeks after 3 weeks of standard diet feeding. Rats fed L. fructus diet consumed more diets than high-fat diets. THe results of experiment I showed significant decreases(p<0.05) in serum triglyceride(TB) and low density lipoprotein-cholesterol (LDL-C) levels with L. fructus feedings, but did not show andy changes in total cholesterol (TC) level. High density lipoprotein-cholesterol (HDL-C) level was increased significantly(p<0.05) with L. fructus feedings. Therefore, the ration of LDL-C to HDL-C(LDL-C/HDL-C) which is used as an atherosclerosis index was significantly (p<0.05) low, while the HDL-c/TC ration was significantly(p<0.05) high with L.fructus intake. However, no significant were found in serum cholesterols and TG levels in experimentII. The results of these experiments indicate that , regardless of the feeding from, L. fructus can be beneficial in lowering serum TG and LDL-C levels for habitual high-fat diet intakers. L.fructus also seems to be effective in elevating serum HDL-C level, theregy having beneficial effects on atherosclerosis by influencing the serum lipoprotein profile.

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Characteristics of the Gigolphy(Lycii cortex Radicis) Wine (지골피 발효주(地骨皮 醱酵酒)의 특성(特性))

  • Park, Jong-Sang;Seo, Gwan-Seuk;No, Jae-Gwan;Cho, Im-Shik;Park, Jun-Hong
    • Korean Journal of Medicinal Crop Science
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    • v.3 no.2
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    • pp.128-134
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    • 1995
  • Gigolphy(Lycii cortex Radicis) wine and its chemical components and physical properties were prepared and analyzed for development of Boxthorn product and utilization of Boxthorn. Chemical components and physical properties of this wine was analyzed. When this wine were evaluated by Amerine test and by concerning physico-chemical properties, the recipy including 20 % of sugar, and 2.0 % of Gigolphy powder were the most highly recommended for development of Gigolphy wine.

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The Preventive Effects of Lycii fructus Extract Against LPS-induced Acute Hepatotoxicity (LPS로 유도된 급성 간독성에 대한 구기자 추출물의 보호 효과)

  • Kang, Kum-Suk;Kwon, Ryun-Hee;Kim, In-Deok;Lee, Dong-Geun;Lee, Jae-Hwa;Lee, Sang-Hyeon;Ha, Jong-Myung;Ha, Bae-Jin
    • YAKHAK HOEJI
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    • v.51 no.5
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    • pp.296-300
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    • 2007
  • The purpose of this study was to investigate the preventive effects of Lycii fructus Extract (LFE) against the acute hepatotoxicity-inducing lipopolysaccharide (LPS) in the liver. LFE of 100 mg/kg concentration was intraperitoneally administered into rats at dose of 1.5 ml/kg for 20 days. On the day 21, 1.5 ml/kg of LPS dissolved in saline was injected 4 hours before anesthetization. We examined the levels of glutamate oxaloacetate transaminase (GOT), glutamate pyruvate transaminase (GPT), lactate dehydrogenase (LDH) in serum of rats, superoxide dismutase (SOD) in mitochondrial fraction, and malondialdehyde (MDA), catalase (CAT), glutathione peroxidase (GPx) in liver homogenate. LPS-treatment markedly increased the levels of GOT, GPT, LDH and MDA, and significantly decreased those of SOD, CAT and GPx. But LFE-pretreatment decreased the levels of GOT, GPT, LDH and MDA, by 17.7%, 27.5%, 40.7% and 56.9%, respectively and increased those of SOD, CAT and GPx, by 90.5%, 78.9% and 83.8%, respectively. These results showed that the LFE had the preventive effects against the acute hepatotoxicity-inducing LPS in the liver.

A Study on the Antioxidative Effect and Quality Characteristics of Cookies Made with Lycii fructus Powder (구기자를 첨가한 쿠키의 품질특성과 항산화효과)

  • Park Bock-Hee;Cho Hee-Sook;Park Sun-Young
    • Korean journal of food and cookery science
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    • v.21 no.1 s.85
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    • pp.94-102
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    • 2005
  • The purpose of this study was to investigate the antioxidative effect and quality characteristics of cookies made with Lycii fructus powder(LFP). The cookies were stored at $50^{\circ}C$ for 40 days. The LFP additive increased the moisture, ash, crude protein and volume of the cookies. When LFP was added at $5\%$ into the cookies, the spread ratio was higher than for the control, the $10\%$ and the $20\%$ LFP cookies. As more LFP was added, the L-value decreased, and the a--values and b-values increased for the color values. For the textural characteristics, springiness and cohesiveness of the control cookies were the highest among the samples, the other side, brittleness and gumminess were higher in cookies made with LFP than in the control cookies. Overall, the cookies made with $5\%$ LFP were preferred more than the other cookies, as tested forby sensory evaluation. The cookies made with LFP contained mostly palmitic acid (C16:0) followed by oleic acid (C18: 1) and stearic acid (C18:0). The acid value, peroxide value, and thiobarbituric acid value were lower in cookies made with $5\%$ and $10\%$ LFP than in those cookies made with $20\%$ LFP and the control cookies.

Antidepressant-Like Effects of Lycii Radicis Cortex and Betaine in the Forced Swimming Test in Rats

  • Kim, Soo Jeong;Lee, Mi-Sook;Kim, Ji Hyun;Lee, Tae Hee;Shim, Insop
    • Biomolecules & Therapeutics
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    • v.21 no.1
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    • pp.79-83
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    • 2013
  • The purpose of the present study was to examine the effect of Lycii Radicis Cortex (LRC) and betaine (BT) on immobility and neurochemical change in the forced swimming test (FST) in the rat. LRC, BT or fluoxentine was administered intraperitoneally to Sprague-Dawley rats three times (1, 5 and 23.5 h) before the FST. To investigate antidepressant-like effect, serotonin (5-HT) and norepinephrine (NE) were examined in the hippocampus and hypothalamus of rats. LRC (100 mg/kg) and BT (30, 100 mg/kg) significantly decreased the immobility time in the FST. LRC (100 mg/kg) significantly increased both 5-HT and NE levels in the hypothalamus of rats exposed to FST. BT (100 mg/kg) significantly increased 5-HT levels in the hypothalamus and hippocampus of rats. Taken together, these results demonstrated that improvement in the behavioral changes after LRC and BT administration may be mediated by elevation of 5-HT level in the hypothalamus and hippocampus, indicating a possible antidepressant-like activity. The present results suggest that the efficacy of LRC and BT in an animal model of depression may provide anti-depressant effects in human, which remains to be determined.