• Title/Summary/Keyword: 간 기능 효소

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Atypical Cushing's Syndrome Associated with Sex Steroids Excess in a Dog (개에서 발생한 성호르몬 과다 분비와 관련된 비정형 부신피질기능 항진증)

  • Kim, Jun-Hwan;Hong, Yeon-Jung;Lee, Hyeon-Seok;Park, Jin-Ho;Park, Chul
    • Journal of Veterinary Clinics
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    • v.29 no.5
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    • pp.400-403
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    • 2012
  • A 10-year-old, intact male, toy poodle was presented with abdominal distension, truncal alopecia, hepatomegaly, and sustained elevation of alkaline phosphatase. Vacuolar hepatopathy and glycogen deposition in hepatocytes were confirmed by liver biopsy and ultrasound-guided fine-needle aspiration with periodic acid-Schiff (PAS) staining of mass lesion respectively. Cortisol and some sex hormones associated with adrenal gland were analyzed at IDEXX Reference Laboratories before and 1 hour after ACTH stimulation. The results of analysis confirmed elevation of some sex hormones including androstenedione, progesterone and 17 hydroxyprogesterone, not cortisol concentration, before and 1 hour after ACTH stimulation. The dog was diagnosed as atypical form of hyperadrenocorticism associated with sex steroids excess. The treatment was initiated with trilostane (0.5 mg/kg, PO, q12hr) that is an adrenal steroid synthesis inhibitor. Trilostane was administered for 8 weeks and the clinical sign including truncal alopecia was improved.

Hypolipidemic Effects of Glycoprotein Isolated from Ficus Carica Linnoeus in Mice (무화과 당단백질의 혈중지질 저하 효과)

  • Lim, Kye-Taek;Lee, Sei-Jung;Ko, Jeong-Hyeon;Oh, Phil-Sun
    • Korean Journal of Food Science and Technology
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    • v.37 no.4
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    • pp.624-630
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    • 2005
  • Glycoprotein (60 kDa) isolated from Ficus Carica Linnoeus (FCL glycoprotein) was examined by evaluating its hypolipidemic effects on plasma cholesterol levels and hepatic detoxicant enzyme activities in ICR mice. FCL glycoprotein $(100{\mu}g/mL)$ had strong scavenging activities (38%) against lipid peroxyl radicals. When mice were treated with Triton WR-1339 (400 mg/kg), levels of total cholesterol (TC) and low-density lipoprotein (LDL)-cholesterol in plasma significantly increased by 53.9 and 47.5 mg/dL, respectively, compared to the control, whereas, when pretreated with FCL glycoprotein $(100{\mu}g/mL)$, decreased remarkably by 55.4, and 47,0 mg/dL, compared to Triton WR-1339 treatment alone. Interestingly, high-density lipoprotein (HDL)-cholesterol level did not change. Body and liver weights did not change significantly after Triton WR-1339 treatment in presence of FCL glycoprotein. FCL glycoprotein $(100{\mu}g/mL)$ stimulated activities of antioxidative detoxicant enzymes such as superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx), whereas GPx activity significantly increased compared to the control. These results suggest FCL glycoprotein has abilities to scavenge lipid peroxyl radicals, lower plasma lipid levels, and stimulate detoxicant enzyme activity in mouse liver.

Activities of Antioxidation and Alcohol Dehydrogenase Inhibition of Methanol Extracts from Some Medicinal Herbs (약용식물 추출물에 대한 항산화성과 알코올 탈수소효소 저해성 연구)

  • 문지숙;김선재;박윤미;황인식;김의형;박정욱;박인배;김상욱;강성국
    • Food Science and Preservation
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    • v.11 no.2
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    • pp.201-206
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    • 2004
  • The activities of antioxidation and alcohol dehydrogenase in hibitionin methanol extracts of thirty two medical herbs were tested using the method of DPPH activity, nitrite scavenging effect and alcohol dehydrogenase assay in vitro. In DPPH method, Eugenia caryophyllata, Thea sinensis, Paeonia suffruticosa, Alnus japonica showed over 90 % of free radical scavenging activities. The nitrite scavenging ability appeared Zanthoxylum bungeanum, Alnus japonica, Thea sinensis, Hovenia dulcis(cortex) and Illicium verum showed the high value. In connection with in vivo alcohol metabolism, thirteen medicinal herbs were screened for inhibition. As a reasult, we found significant inhibition of ADH by methanolic extracts of Glycyrrhiza uralensis, Pueraria thunbergiana(radix), Alnus japonica. These results indicate that the antioxidative effect was strongly related with alcohol dehydrogenase inhibitor; Thea sinensis and Alnus japonica.

Metabolism of Lactate Dehydrogenase in Tissues from Ldh-C Expressed Fish at Starved State (기아상태에서 Ldh-C가 발현된 어류 조직의 젖산탈수소효소의 대사)

  • Yum, Jung Joo;Kim, Gyu Dong
    • Journal of Life Science
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    • v.26 no.2
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    • pp.155-163
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    • 2016
  • Metabolism of lactate dehydrogenase (EC 1.1.1.27, LDH) was studied to identify the function of LDH-C. Tissues of LDH liver-specific Ldh-C expressed Carassius auratus and eye-specific Ldh-C expressed Lepomis macrochirus after starvation were studied. LDH activity in liver tissue from C. auratus was increased after starvation. And LDH specific activity (units/mg) and LDH/CS were increased in tissues. It means the anaerobic metabolism was taking place in C. auratus after starvation. LDH B4 isozyme was decreased in skeletal muscle and increased in heart tissue. LDH C4 isozymes those showed in eye and brain tissues were identified as liver-specific C4 isozymes and disappeared after starvation. And C hybrid in eye, A4 isozyme in brain, and both C hybrid and C4 isozyme in liver tissue were increased, respectively. In L. macrochirus, the level of variation of LDH activities was low but greatly increased especially in eye tissue and LDH A4 and AC hybrid were increased in brain tissue. The LDH activities in tissues from C. auratus and L. macrochirus remained 30.30-18.64% and 25-18.75%, respectively, as a result of the inhibition by 10 mM of pyruvate. The KmPYR values of LDH in C. auratus were increased. As a result, LDH liver-specific C4 isozyme was expressed in liver, brain and eye tissues during starvation. It seems metabolism of lactate was predominant in brain tissue. After starvation, the liver-specific LDH-C was affected more than eye-specific LDH-C.

Comparison of Biological Activities of Epimedium koreanum Nakai Produced in Korea and China (국내산과 중국산 삼지구엽초의 생리활성 비교)

  • Noh, Joon-Hyun;Kim, Young-Jin;Kim, Se-Won;Lee, Jin-Ha;Lee, Hyeon-Yong
    • Korean Journal of Medicinal Crop Science
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    • v.11 no.3
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    • pp.195-200
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    • 2003
  • This study was carried out to compare the biological activities of Epjmedium koreanum Nakai grown wild in Korea and China. The antioxidative effect of E. koreanum Nakai-extracts grown wild in Gangwondo was 78%, which was higher than that in China as 71%. The inhibition ratio of growing cancer cells was estimated as 89, 91 and 86% for human liver, lung and breast cancer cell lines, respectively in adding 0.1 g/l of ethanol extracts of E. koreanum grown in Korea. The hepatoprotective effect and Angiotensin Converting Enzyme (ACE) inhibiting effect of Korean one were also observed as 124 and 87%, respectively, which were also higher than those produced in China. There was not much difference between Korean and Chinese one in inhibiting ${\alpha}-glucosidase$ activities in all ranges of supplement. It was proved that most effective extraction solvent was mixed type as water and ethanol (1:1, v/v) to have higher biological activities from both Korean and Chinese ones.

Hepatoprotective Effects of Hovenia dulcis Fruit on Ethanol-Induced Liver Damage in vitro and in vivo (세포 및 동물모델에서의 알코올에 의해 유발된 간손상에 대한 지구자 추출물의 보호효과)

  • You, Yang-Hee;Jung, Kuk-Yung;Lee, Yoo-Hyun;Jun, Woo-Jin;Lee, Boo-Yong
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.38 no.2
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    • pp.154-159
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    • 2009
  • The hepatoprotective effect of ethanol extract from Hovenia dulcis fruit (HD) against ethanol-induced oxidative damage was investigated. Ethanol-induced reactive oxygen species (ROS) generation and liver damage on HepG2/2E1 cells were protected by $100{\mu}g/mL$ ethanolic extract from HD. Male C57BL/6 mice were divided into 3 groups; control (NC), ethanol (ET), ethanol plus 1 g/kg body weight ethanolic extract of HD (ET-HD). The activities of serum alanine amintransferase (ALT), aspartate aminotransferase (AST), and alkaline phosphatase (ALP) were significantly increased in ethanol-treated group. However, ET-HD group showed protective effect by lowering serum activities. The ET group markedly decreased the activities of catalase (CAT), superoxide dismutase (SOD), and glutathione-s-transferase (GST) with the reduced level of glutathione (GSH) in liver. On the other hand, ET-HD group increased the activities of SOD and GST, and the level of GSH. Lipid peroxidation level, which was increased after ethanol administration, was significantly reduced in ET-HD group. Based upon these results, it could be assumed that ethanolic extract of HD protected the liver against ethanol-induced oxidative damage by possibly inhibiting the suppression of antioxidant activity and reducing the rate of lipid peroxidation in vitro and in vivo. Therefore, extract of Hovenia dulcis fruit might be used as a protective agent for ethanol-induced hepatic damages.

Hepatic Detoxification activity and reduction of Serum Alcohol concentration of Hovenia dulcis $T_{HUNB}$ from Korea and China (중국산과 국내산 헛개 나무 열매의 체내 알콜 분해능 및 간 해독 작용)

  • Kim, Min-Hae;Chung, Yoo-Taek;Lee, Jin-Ha;Park, Young-Shik;Shin, Myung-Ki;Kim, Ho-Sang;Kim, Dong-Hoon;Lee, Hyeon-Yong
    • Korean Journal of Medicinal Crop Science
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    • v.8 no.3
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    • pp.225-233
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    • 2000
  • There was not noticeable differences in decreasing blood alcohol concentrations between Korea and China-produced Hovenia dulcis $T_{HUNB}$, showing only 1-2 % higher decreasing rate for Korea-produced seed extracts than those from China. It was also found that the blood alcohol decreasing ability was greatly enhanced by partitioning the crude extracts produced from both places. The both extracts (crude and partitioned) accelerated the reducing rate of blood alcohol concentrations down to 1-2 hours, compared to that of control (taking only ethanol). The crude extracts from imported seeds seemed to have slightly better effect on improving in vivo ADH and ALDH activities than domestic ones; however, not for partitioned extracts. It was interesting that the partitioned extracts from both countries enhanced ADH enzyme activity up to 60% than the crude, compared to the control, while ALDH activity was not much affected by the partitioned extracts. It was also confirmed that both ADH and ALDH activities were well balanced in controlling blood alcohol concentration maintaining 28-29% of enzyme activities in vivo. The extracts proved to have better effect on enhancing ALDH activity than ADH activity, which is one of possible explanation that Hovenia dulcis $T_{HUNB}$ can effectively relieve the hangover by fast decreasing acetaldehyde concentration in the liver and blood. GST activity was also increased in the range of 120 to 300% by adding crude or partitioned extracts from both countries; however, there was no difference in enhancing GST activity between the extracts from two countries. The extracts showed competitive inhibition with GST activity, showing the reduction of enzyme activity at higher than 0. 6 (g/L) of the imported extracts.

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Post-Hatching Development of Digestive Organs, Intestinal Digestive Enzymes and Hepatic Antioxidant Defense System in White Leghorn Chicks (White Leghorn Chick의 초기 성장단계에서 소화기관의 발달, 소장의 소화 효소 및 간 조직의 항산화 방어작용)

  • Kim, Min-Jeong;Lee, Joo-Hyun;Jang, In-Surk
    • Korean Journal of Poultry Science
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    • v.48 no.1
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    • pp.31-39
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    • 2021
  • We aimed to investigate the age-dependent development of digestive organs, intestinal enzymes, and hepatic antioxidant defense system in White Leghorn chicks aged 0, 3, 7, 14, and 21 days. Body weight (BW) did not significantly change between days 0 and 7 but significantly increased (P<0.05) after day 7. The relative liver weight (g/100 g of BW) was significantly lower at day 0 than at the other ages but markedly increased at days 3 and 7 (P<0.05). The relative pancreatic weight changed similar to the change in liver weight, with the maximum development at 7 days (P<0.05). The relative intestinal and mucosal tissue weights increased rapidly after hatching (P<0.05), with the maximum growth at 7 days. Furthermore, maltase and sucrase activities were significantly higher at day 3 than at day 0 (P<0.05). Leucine aminopeptidase activity was high at day 0 and remained constant as age increased. Superoxide dismutase and glutathione S-transferase activities in the liver were the lowest at day 0 but significantly increased after 7 days (P<0.05). Glutathione peroxidase activity increased significantly after day 14 compared with that at days 0 and 7 (P<0.05). Lipid peroxidation was not affected by age. In conclusion, the digestive organ weights and hydrolase activity of chicks increased rapidly during the first 3 or 7 days post-hatching. Hepatic antioxidant enzyme activity increased simultaneously with the increase in digestive organ weights, after 7 days.

생쥐 초기 배아에서 Aquaporin 8과 9의 발현에 관한 연구

  • 신현상;계명찬;강수만;이성은;이지원;강한승;김문규
    • Proceedings of the Korean Society of Developmental Biology Conference
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    • 2003.10a
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    • pp.68-68
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    • 2003
  • Aquaporin은 막관통 통로 단백질(transmembrane channel protein)로서, 삼투압의 농도구배에 따라 세포막을 가로질러 물분자를 이동시키는 기능을 하고 있다. 포유류 초기배아에서 포배강 형성은 영양외배엽세포에서 $Na^+ / K^+$ATPase에 의한 이온 농도 구배가 형성되면 auqaporin에 의해 물이 포배강으로 유입되면서 이루어진다. 본 연구에서는 생쥐 초기배아에서 반정량적인 역전사 중합효소 연쇄반응 방법(semi-quantitative RT-PCR)과 실시간 역전사 중합효소 연쇄반응 방법(real-time RT-PCR)을 통하여 AQP8과 9의 mRNA발현을 조사하고 다중 면역형광현미경 방법(confocal immunofluorescence microscopy)을 통해 단백질 발현양상을 분석하였다. AQP8 mRNA는 상실기까지 발현되지 않다가 포배기에 이르러 발현되었고 AQP9 mRNA는 수정란에서부터 발현되어 포배기에는 유의할 정도로 증가하였다. 따라서 AQP8 mRNA는 배아유전자가 활성화되어 나타나는 것이고 AQP9 mRNA는 모계유전자 기원임을 알 수 있었다. AQP8 단백질은 상실배 단계까지 발현되지 않다가 포배시기에 영양외배엽세포사이의 접합면에 발현되었고 AQP9 단백질은 상실배 시기에 할구 사이의 인접 부위에서 강하게 발현되었다가 포배시기에는 세포간의 접합면에 약하게 발현하는 경향을 나타내었다. 실시간 역전사 중합효소 연쇄반응 방법으로 조사한 결과 포배에서 물과 글리세롤을 통과시키는 AQP9는 mRNA의 발현양이 AQP8보다 약 4배 정도 많았다. 또한 포배기에 이르러서야 물만을 통과시키는 AQP8의 발현이 나타나는 것을 보아 포배강 형성시 외부에서 영양외배엽을 통해 포배강으로 유입되는 물의 이동(trans- trophectodermal water movements)에 AQP9보다 AQP8이 더 중요하게 관여할 것으로 사료된다., K, Pb, Cd, Cr, Co, Cu, Ni)을 측정하였다. 실험 조건1의 결과로서 각 국의 유아용 일회용 기저귀의 중금속 함량은 거의 유사한 경향을 나타내었으며 Cr, Zn, Pb, Ni, Mn, Mg, Li, K는 detection limit(2 ppm) 이하였고, Cd, Fe, Co, Cu, Ca, Al, Sr는 검출되었지만 기준치 이하였다. 실험 조건2의 결과로서 측정 항목(Cr, Sb, Cd, Pb, Ni, Co, Cu)중 Cr, Cd, Ni, Cu는 detection limit(0.1 ppm) 이하였고, Sb, Pb, Co는 검출되었지만 기준치 이하였다.았다. 4%의 경우에는 8$0^{\circ}C$이하로 온도를 낮추는 것이 좋은 상태를 나타내었다. 이와 같은 결과는 일반적으로 화학적 레팅을 4%, 7%에서한 선행결과와 상당히 다른 결과이다.염 농도가 증가할수록 감소 현상을 보였다.X>, 75BG30은 8.6$\mu\textrm{m}$, 75BG40은 7.02$\mu\textrm{m}$로 나타났다. 따라서 경화제 양에 관계없이 10$\mu\textrm{m}$ 이하로 나타나, 경화제 10$m\ell$만으로 미세한 크기를 얻을 수 있음을 알 수 있다. 젤리 강도 변화에 따른 차이는 300BF는 78.09$\mu\textrm{m}$ 300BG는 56.32$\mu\textrm{m}$로, 75BF나 75BG에 비하여 현저히 증가하여, 젤라틴의 젤리 강도는 캡슐 제조 조건의 주요한 변수임을 알 수 있다.추출물 투여시 혈당강하 및 혈중콜레스테롤 강하가 나타났으며, 상엽복합추출물 투여와 운동을 병행시 이러한 감소 효과가 더 뚜렷하게 나타났다.교육의 적임자로 보는 시각이 비교적 높았고 약 1/2정도는 영양교육에 참여하겠다는 의지를 가지고 있을 뿐만 아니라 실제로 영양지도를

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Effect of ${\beta}-Carotene$ Supplementation on Lipid Metabolism and Related Enzyme Activities in Rats (${\beta}-Carotene$ 공급이 흰쥐 간 조직의 지질대사와 관련효소의 활성에 미치는 영향)

  • 최은미;박정룡;서정숙
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.23 no.5
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    • pp.743-749
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    • 1994
  • This study was designed to investigate the effect of dietary ${\beta}-carotene$ level on the lipid metabolism and lipid peroxide metabolizing enzyme activities in rats. Male Sprague -Dawley rats were fed on diets containing five levels of ${\beta}-carotene$ (0, 10, 120, 1200, 12000mg/kg diet ; BC 0, BC 1, BC 2, BC 3, BC 4 group). The rats were sacrificed after 7 weeks of the feeding periods. Lipid peroxide value of mitochondrial fraction of rat liver was elevated in ${\beta}-carotene$ restriction group when compared to $\beta$ -carotene groups. Superxide dismutase activity increased significantly by ${\beta}-carotene$ supplementation. Both catalase and glutathione peroxidase activities were reduced with increasing ${\beta}-carotene$ supplementation, except only ${\beta}-carotene$ restriction group. In liver, the contents of total lipid and cholestero decreased by ${\beta}-carotene$ supplementation but triglyceride content was not different among treatment groups. HDL-and total cholesterol ratio in plasma of 12, 000 ${\beta}-carotene$ group decreased, and was similar to that of ${\beta}-carotene$ restriction group.

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