• 한국식품영양학회지
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• 제18권3호
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• pp.265-271
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• 2005

식이성 고콜레스테롤혈증 유발 Sprague Dawley계 숫 흰쥐를 사용하여 돌복숭아(Prunus persica Batsch var. davidiana Max.) 생리활성물질 추출액을 급여하므로서, 혈청 유리지방산, creatine phosphokinase 및 lecithin cholesterol acyltrasferase(LCAT) 활성 등 생체 내 지질 대사 이상 및 혈청 지질 개선 효과를 생리생화학적 측면에서 검토하기 위하여 본 실험을 수행하였다. 기본 식이에 물 급여군인 대조군(BW군)과 돼지기름, 콜레스테롤 등에 의한 고콜레스테롤 유발 식이에 물 급여군(BCW군), 고콜레스테롤혈증 유발 식이에 돌복숭아 $5.0 g\%$ 추출액을 급여한 군(BCP군)을 5주간 실험 사육하였다. 혈청 중 전해질 농도(Na, K, Cl)는 고콜레스테롤혈증 군에 돌복숭아 추출액을 급여하므로서 농도가 다소 감소되는 경향을 보였지만 전해질 농도의 저하효과는 유의성 있게 관찰되지 않았다. 혈청 중 유리지방산, 과산화지질 농도 및 creatine phosphokinase 활성 등은 돌복숭아 추출액을 급여한 군에서 농도와 활성이 감소되는 것으로 나타났다. 반면, 혈청 LCAT 활성은 고콜레스테롤 유발군에 돌복숭아 추출액 급여에 의해 증가되는 것 등으로 미루어 보아, 돌복숭아 중의 생리활성물질이 식이성 고콜레스테롤혈증 흰쥐에 대한 혈청 지질 개선 효과가 있는 것으로 사료된다.

• 대한한의학방제학회지
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• 제9권1호
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• pp.289-317
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• 2001

The purpose of this study was to reseach the effect of Daesihotang and its component groups on diabetes, free radical and antioxidative defense system in alloxan-induced diabetic rats. The experimental group was divided into three groups: Daesihotang (DS), Soyangyak (DS1), Yangmyungyak (DS2). The results were obtained as follows: The level of glucose, triglyceride, total cholesterol, creatinine in serum were considerablely reduced by Daesihotang. And the level of HDL cholesterol, albumin, total protein in serum were increased by Daesihotang significantly. And the level of BUN has some decreased, but with no significancy. In the study of Daesihotang on free radical scavenging effect in vitro, it has shown that Daesihotang and its components group have significant suppressing effect on peroxidation of linoleic acid on concentration. And in other experiments as scavenging effect of DPPH radical, inhibitory effect of superoxide in xanthine-xanthine oxidase system and inhibitory effect on lipid peroxidation reaction by hydroxy radical in $H_2O_2-Fe^{2+}$ system, Daesihatang have some activity, but with no significancy. In the study of Daesihotang on antioxidative defense system in vivo, the activity of GOT and GPT in serum were significantly increased; and the amounts of lipid peroxide in serum was reduced significantly but in liver no significancy. In hepatic catalase activity, Daesihotang has showed significant effect. In the level of hepatic glutathione, Daesihotang increased the amount of glutathione significantly. And in the activity of glutathione-s-transferase, Daesihotang has decreasing effect but has no significancy. These result suggest that Daesihotang has strong effect on diabetes and it is useful to prevent diabetes, but has less effect on peroxidative damage by free radical.

• 한방비만학회지
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• 제2권1호
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• pp.95-104
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• 2002

Objects. There was an increase in obese population due to eating habits resulted in modernization of lifestyle and the change of the tendency to conduct the physical activity, in order words, the reduction in the range of kinetic energy. Obesity is viewed as a major risk factor for serious health problems, including heart disease, high blood pressure, stroke, diabetes, and certain forms of cancer as well as for psychological and social problems owing to our fat-phobic society. In the present study, we investigate the weight loss thanks to giving Handayulso-tang(HD) medication of Taeum-in to induced obesity rats and its effects on lipid metabolism, given that their behavior patterns are changed according to their constitution. Methods: The extracts of Handayulso-tang was orally administered to the rats of HD group 200mg/200g of rats weight every day for 6 weeks, and the control group were fed with equal amount of saline. And measured the body weight and total cholesterol, triglyceride, free fatty acid and total lipid contents in serum in obese rats. Results: 1. The body weight in HD group were decreased. 2. The contents of serum total cholesterol and triglyceride in HD group were decreased and statistically showed the significant difference compared with the control group. 3. The contents of serum free fatty acid and total lipid in HD group were decreased, but did not statistically show the significant difference compared with the control group. Conclusion: Based on the above results, we know that Handayulso-tang have effects on the decrease of the body weight and the contents of serum total cholesterol, triglyceride, free fatty acid and total lipid So it could be concluded that Handayulso-tang can help the treatment of obesity.

• Journal of Nutrition and Health
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• 제26권8호
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• pp.925-932
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• 1993

To study the effects of dietary protein and magnesium level on serum lipid contents and enzyme activities, male Sprague-Dawley rats were divided into six groups. Six groups of animals were fed six experimental diets different with protein(8% and 20%) and magnesium levels (Mg-free, 400mg/kg diet and 800mg/kg diet). The serum lipid contents and enzyme activities of rats fed different dietary protein and magnesium levels were examined. Serum triglyceride contents was significantly decreased as the dietary magnesium level was increased. Serum phospholipid contents was significantly higher in magnesium deficient group than those in the other groups. Serum alkaline phosphatase activity was significantly decreased in magnesium dificient group compared with other groups, but serum glutamic oxaloacetic transaminase and glutamic pyruvic transaminase activities was significantly increased in magnesium dificient group than other groups. In conclusion, serum triglyceride contents in low protein level was remarkably decreased as the dietary magnesium level was increased.

• Asian-Australasian Journal of Animal Sciences
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• 제8권6호
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• pp.627-633
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• 1995

This experiment was designed to evaluate the effect of various dietary vitamin $B_6$ levels on conversion from linoleic acid to arachidonic acid in various tissues in growing chicks. Growing chicks were fed the purified diet containing 7% safflower oil with different levels of vitamin $B_6$ (0, 4, 8, 40, 80 mg per kg diet) for 14 days. Feed intake and weight gain in chicks fed the vitamin $B_6$-free diet were markedly depressed. Esterified and free cholesterol concentrations in serum were significantly higher, while the serum triglyceride concentration was significantly lover in chicks fed the vitamin $B_6$-free diet compared to that fed diets with vitamin $B_6$. The liver triglyceride content was also lower in chicks fed the vitamin $B_6$-free diet. The liver and serum cholesterol ester fractions in chicks fed the vitamin $B_6$-free diet showed higher rate of $C_{18:2n6}$ and lower rates of $C_{18:3n6}$, $C_{20:3n6}$ and $C_{20:4n6}$ as compared with vitamin $B_6$ fed groups. In serum phospholipid fraction of chicks fed the vitamin $B_6$-free diet, rates of $C_{20:3n6}$ and $C_{20:4n6}$ were markedly lower. As dietary vitamin $B_6$ level was increased, the rate of $C_{20:4n6}$ was slightly increased, although it was statistically not significant. The fatty acid compositions of adipose tissue showed almost the same pattern as those in liver and serum. This result suggests that the desaturation of $C_{18:2n6}$ to $C_{18:3n6}$, elongation to $C_{20:3n6}$ or both steps might be impaired by vitamin $B_6$ deficiency in growing chicks.

• 생명과학회지
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• 제9권1호
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• pp.35-43
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• 1999

이탈리안 라이그라스로부터 갈변을 방지시켜 white LP를 제조하여 4주령의 Wistar 계 수컷 흰쥐에 14일 급여, 혈청지질농도 및 혈중 유리 아미노산 패턴에 대하여 단백질원으로 대두단백질 및 카제인 급여와 비교하였으며 혈중 유리 아미노산이 혈청 지질농도에 대하여 어떠한 관련이 있는지를 검토하였다. 갈변을 방지하여 조제한 LP 의 질소 함량 및 소화율이 거의 대두단백질 수준까지 높여 단백질의 품질에 대한 영향을 확인하였다. 혈청 총 콜레스테롤 및 LDL-콜레스테롤은 카제인군에 비하여 이탈리안 라이그라스 white LP 군이 유의적으로 낮고, 대두 단백질군과 같은 수준이었다. 이때 혈중유리아미노산을 비교한 결과, LP 군과 대두단백질군과는 거의 닮은 패턴을 나타내고 카제인군에 대해서는 glycine 만 높고 다른 아미노산은 차가 없든지 유의적으로 낮았다. 그리고, 카제인 수준을 15.0% 로 낮추어 대두 단백질과 비교하였다. 그 결과, 혈청 콜레스테롤 농도는 카제인군이 유의적으로 높고 혈중 glycine 농도가 낮고, methionine 농도의 높은 폐턴은 일치하였다. 이상의 결과로부터 혈중 유리아미노산 패턴은 급여 단백질의 종류에 의해 어느정도 규제되어지며 아미노산 패턴은 혈청지질과 어떠한 관련이 있는 것으로 인정되었다. 더욱이, LP 와 대두단백질의 혈중 유리 아미노산 패턴은 매우 유사한 것이 관찰되어 LP 의 혈청 콜레스테롤 강하작용의 메카니즘은 대두 단백질의 메카니즘과 유사한 것으로 생각되어진다.

• Journal of Ginseng Research
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• 제4권2호
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• pp.146-164
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• 1980

In this paper it was attempted to observe the effect of defatted panax ginseng supplement of the growth rate, feed and protein efficiency ratios, and the contents of cholesterol, total lipid and protein in the serum, liver and aorta in Sprague-Dowley Albino male rat (weighing 83 ${\pm}$ 4 g). Seven kinds of experimental diets were prepared as follows : Stock (control) diet, ginseng control diets supplemented with 0.5, 1.0 and 3.0% of ginseng powder to the stock diet, and defatted ginseng Powder diets supplemented with 0.5, 1.0 and 3.0% of defatted ginseng powder to the stock diet. .All diets contained same level of lipid and protein, respectively. The results obtained are as follows : 1. The growth rate in the feeding group of 0.5% defatted ginseng powder diet for 16week were higher than other diet groups. 2. Feed and Protein efficiency in 0.5% defatted ginseng group showed similar tendency to that in body growth rate. 3. The total cholesterol contents in the serum of 0.5% defatted ginseng Powder diet$.$ group showed the tendency to decrease gradually for 4 to 12 weeks, maintaining higher level than other groups. The free cholesterol contents in the serum of defatted ginseng powder diet group in 8 the and 16th weeks were higher than all ginseng control diet group. The total and free cholesterol contents in the liver of all defatted ginseng diet groups in 16th week were higher than hose of all ginseng control groups. The total cholesterol content at 12h week and the free cholesterol content at 16th week i n the aorta of all defatted ginseng diet groups were lower than those of ginseng control groups, respectively. 4. The total lipid contents in the serum of 1.0 and 3.0% defatted ginseng diet groups at 2nd to I2th weeks were lower than other groups, and those in the liver and aorta of all defatted ginseng diet groups at 12th weeks were lower than those of ginseng control diet groups. 5. The protein contents of the serum and aorta were continuously increased throughout whole experimental period in all experimental groups. The protein content of the liver of all groups were decreased at 2nd week and after then no change was observed.

• Mass Spectrometry Letters
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• 제9권1호
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• pp.30-36
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• 2018

A quantitation method for free amino acids in human serum was developed using a stepwise-dilution method and a bimodal cation exchange (CEX)/hydrophilic interaction liquid chromatography (HILIC)-tandem mass spectrometry system equipped with an electrospray ionization source (ESI/MS/MS). This method, which was validated using quality control samples, was optimized for enhanced selectivity and sensitivity. Dithiothreitol (DTT) was used as a reducing agent to prevent the oxidation of a serum sample ($50{\mu}L$), which was then subjected to stepwise dilution using 3, 30, and 90 volumes of acetonitrile containing 0.1% formic acid. Chromatographic separation was performed on an Imtakt Intrada Amino Acid column ($50mm{\times}3mm$, $3{\mu}m$) in mixed mode packed with CEX and HILIC ligands embedded in the stationary phase. Underivatized free amino acids were eluted and separated within 10 min. As a result of the validation, the precision and accuracy for the inter- and intraday assays were determined as 2.11-11.51% and 92.82-109.40%, respectively. The lowest limit of quantification (LLOQ) was $0.5-4.0{\mu}g/mL$ and the matrix effect was 80.22-115.93%. The proposed method was successfully applied to the quantitative analysis of free amino acids in human serum.

• 생명과학회지
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• 제8권4호
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• pp.381-386
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• 1998

This study was designed to observe the effects of the feeding Gentiana scabra Bunge var.buergeri Max. extract on the improvement of the blood glucose, lipids in the serum of streptozotcin(55mg/kg of body weight, I.P. injection) induced hyperglycemic rats (S.D. strain, ) fed the experimental diets for 4 weeks. Concentrations of blood glucose were significantly higher in the streptozotocin administration(I.P.) groups (group 2(streptozotcin+water), 3(streptozocin+Gentiana scabra Bunge extract), 4(streptozotocin+cholesterol+water), 5(streptozotocin+cholesterol+Gentiana scabra Bunge extract) than those in the control group(group 1(water)). Bolld glucose concentrations were rather lower in the group 3(streptozotocin+Gentiana scabra Bunge extract)than in the group 2(streptozotocin+water), and then those of the group 5 were rather lower than in the group 4. There was almost little significance among the groups. concentrations of total cholesterol in serum were lower in the group 5 than those in the group 4, and the group 3 were rather lower than in the group 2. Concentrations of LDL-cholesterol in serum were significantly lower in the group 3 than those 2. In the ratio of HDL-cholesterol concentrations to total cholesterol concentrations, Gentiana scabra Bunge extract administration groups were higher percentage than the other goups. Concentrations of free cholesterol and cholesteryl ester in serum were rather lower in the groups 3,5 than the other groups, and then those of the group were higher percentage than the other groups. concentrations of free cholesterol and cholesteryl ester in serum were rather lower in the groups 3,5 than the groups, and then those of the group 3 were significantly lower than in the group 4. Concentrations of triglyceride and phospholipid in serum were decreased in the group 3 than in the other groups. The activities of aspartate aminotransferase and alanine aminotransferase in serum were increased in the all experimental groups than in the control group. From the above research, the Gentiana scabra Bunge var.buergeri Max. extracts were effective on the improvement of the lipid compositions in serum of streptozotcin induced hyperglycemic and hypercholosterolemic rats.

• 대한방사선기술학회지:방사선기술과학
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• 제10권1호
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• pp.85-90
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• 1987

Preliminary studies on the measurement of the free thyroxine in the serum with Amerlex $FT_{4}$ RIA kit were investigated using a tracer as $^{125}I-T_{4}$ derivative which is not almostly bound to thyroxine binding globulin, etc. The results are followed: 1. Linearity was tested on standards at various concentrations, and reproducibility and accuracy was excellent. 2. The antibody specificity is also excellent, and standard calibration curve of total $T_{4}$ was similar that of adding the TBG inhibitor. 3. Each value of $T_{4}$ in serum (the normal group, the hypothyroidism patients the pregnant women and the TBG dificiency patients) was not significant. As mentioned above, this method is more simple and rapid, compared to the other method.