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淫羊藿이 Tyrosinase 酵素活性및 Melanin 生成에 미치는 影響
千賢子,金容隨,金台英,金在柱,安成薰,田炳薰,禹元洪 한국전통의학연구소 2000 한국전통의학지 Vol.10 No.2
With a view to investigating how Epimedium koreanum Nakai affects formation of melanin content in skin, we have measured change in the number of cell, melanin content, and tyrosinase activity by treating its aqueous extracts at various concentrations with B16 melanoma cells, the result of which is as follows: Firstly, cell viability has been shown as over 95% when treating with the aqueous extract of Epimedium koreanum Nakai up to 200 ug/mL, from which the effect of cell toxicology has not nearly appeared. Secondly, the number of cell has been slightly decreased than that of the control group when treating with the aqueous extract of Epimedium koreanum Nakai, which has not shown a statistical noteworthiness. Thirdly, the aqueous extract of Epimedium koreanum Nakai has increased in tyrosinase activity. Fourthly, the aqueous extract of Epimedium koreanum Nakai has promoted the formation of melanin content, its final product. According to the result, it is confirmed that Epimedium koreanum Nakai has the influence on promoting melanization of B16 melanoma cell, and it is considered that Epimedium koreanum Nakai can be applicable for curing vitiligo caused by decrease or loss of pigment through a systematic study.
마이셀용액에서 크롬(Ⅴ1)의 전기화학적 환원에 관한 연구
김일광,성낙도,천현자 圓光大學校 1984 論文集 Vol.18 No.2
The electrochemical reaction of chromium (Ⅵ at a static mercury electrode in micelle aqueous solution has been examined by DC polarography, DP polarography and cyclic voltammetry. The polarographic and cyclic voltammetric data shown to be chemical reactively irreversible process of chromium (Ⅵ) electrode reaction. the height of reduction waves and halfwave potentials were shifted to the more negative patential in the NaLS, CTABr solution. When chromium (Ⅵ) ion was reduced in basic solution, the following possible mechanism was portulated. ?? In acidic solution, the reduction of chromium (Ⅵ), dimer proceeds by a six-electron transfer to form chromium (Ⅲ). Therefore the following reduction was suggested. ??
蘇木의 에틸아세테이트 추출물이 B16/F10 흑색종세포의 멜라닌 합성에 미치는 효과
천현자,김용수,남항우,윤성찬,우원홍 대한동의생리학회,대한동의병리학회 2001 동의생리병리학회지 Vol.15 No.6
Caesalpinia sappan L. has been commonly used as analgesic, a cure for contusion and sprain as well as a remedy for thrombosis in the oriental medicine. The main constituent of Caesalpinia sappan L. is brazilin having a flavonoid structure. Melanin is a main pigment found in skin, hair and eyes, and melanin synthesis is controlled by a cascade of enzymatic reactions regulated at the level of tyrosinase. The aim of this study was to examine the effect of Caesalpinia sappan L. on proliferation and melanogenesis of B16/F10 melanoma cells. After 48h treatment of cells with various concentrations of EtOAc extract, the cells exhibited a dose-dependent inhibition in their proliferation without apotosis. Therefore, the growth retardation may be due to the cell arrest, not due to cytotoxicity. And there were estimated total melanin contents as a final product and activity of tyrosinase, a key enzyme, in melanogenesis. EtOAc extract increased the melanin contents and tyrosinase activity in low concentration (0.01-10㎍/ml), whereas it decreased those in high concentration. In conclusion, it was observed that EtOAc extract of Caesalpinia sappan L. differently regulates melanization of cells dependent of its concentrations.
근육피로가 혈액과 근조직의 대사활성에 미치는 영향 및 뜸의 효과 Ⅰ
千賢子,金日光,韓宗賢,林善英,張敬善 圓光大學校 基礎自然科學硏究所 1993 基礎科學硏究誌 Vol.12 No.1
As a result of measuring a changes in the concentrations of creatinine and lactate, and LDH activity, produced in rat blood serum and muscular tissue in case of muscular exercise by swimming, with a view to examining the influence of fatigue upon muscle metabolism, we have concluded that the values have gradually increased in blood serum and muscular tissue of the experiment group rather than the control group in proportion to swimming time. On the one hand, the concentration of creatinine both in blood serum and muscular tissue within the experiment group with moxibustion to Can Su(B 18) has showed a prominent decrease in comparison with the control group(P < 0.01). The concentration of lactate in muscular tissue has decreased 2.2 times(75%) more than in blood serum (34%). From the above result, moxibustion, having an anti-fatigue effect, helps the rising of exercise ability, which, for me, results from the decrease in the concentrations of creatinine and lactate, i.e. material of fatigue, from the prohibition of LDH activity, and from the effect on anti-fatigue in muscle.
(1,3)$\beta$-Glucansynthase효소 억제 활성을 가진 천연물의 검색
천현자,김영순,이영행,곽규범,권석용,권태오,채규윤,Chun Hyun Ja,Kim Young Sun,Lee Young Hang,Kwak Geu Byum,kwon Suk young,Kwon Tae Oh,Chai Geu Yun 대한동의생리학회 2003 동의생리병리학회지 Vol.17 No.6
Antifungal activities of the extracts from 26 medicinal plants were investigated utilizing paper-disk diffusion method and (1,3)β-glucan synthase inhibitory assay. (1,3)β-glucan synthase is considered as valuable target in the development of antifungal agents. Among the screened extracts, the ethyl acetate extract of Equisetum arvense, the ethyl acetate extract of Polygonum aviculare, the butanol extract of Crataegus pinnatifida and the n-hexane extract of Saussurea lappa showed significant antifungal activities on Candida albacans in both disk diffusion and enzyme assays.
천현자,최원형,이정호,양현옥,백승화 대한동의생리학회,대한동의병리학회 2003 동의생리병리학회지 Vol.17 No.2
Cornis fructus was extracted by successive extraction and then fractionated with hexane extract to get active is study was performed to determine the cytotoxic effect of hexane extract from Comis fructus on NIH 3T3 fibroblasts and cancer cell lines using MTT assay. Hexane extract showed cytotoxic effect against A549, B16 melanoma and MDA-MB-231. Futher fractionation with hexane extract was performed to obtain effective fraction, fraction 3 showed the cytotoxic effect against A549 and MDA-MB-231. In antimicrobial test of each fraction of hexane extract, fraction 5 showed antimicrobial activities against P. putida and P. aeruginosa.
근육피로가 혈액과 근조직의 대사활성에 미치는 영향 및 뜸의 효과 Ⅱ
千賢子,金日光,張敬善 圓光大學校 基礎自然科學硏究所 1993 基礎科學硏究誌 Vol.12 No.1
After moxibustion to Jog Sam Ri(S 36), measurement of the changes in the concentrations of creatinine and lactate, and in LDH actibity, i.e. fatigue material, as a moxibustion therapy of muscle fatigue, we have concluded as follows; An increase both in blood serum and muscular tissue of the experiment group than the control group, which has shown a same trend in proportion to swimming time. The concentration of creatinine both in blood serum and muscular tissue within the experiment group with moxibustion has shown a decrease, which has shown a same figure in case of lactate. LDH activity in the experiment group has shown an entire decrease in comparison with the control group, and the ratio of decrease has been similar with that of lactate. The whole values of concentrations of creatinine and lactate, and LDH activity have shown a gradual decrease according to the amount of moxibustion.