• 한국잠사곤충학회지
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• 제41권3호
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• pp.141-146
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• 1999

This study was designed to investigate the effects of silkworm powder (SWP) on oxygen radicals and their scavenger enzymes in serum of rats. Sprague Dawley (SD) male rats (160${\pm}$10g) were fed experimental diets (SWP-200and SWP-400 groups)added 200 and 400mg/kg BW/day for 6 weeks. Triglyceride (TG)levels were significantly inhibited (10% and 25%) in SWP-200 and SWP-400 groups, but there were no singificant differences in total, LDL-and HDL-cholesterol levels in both SWP-200 and SWP-400 groups. Hydroxyl radical ($.$OH) formations resulted in a marked decreases (about 20%) in both SWP-200 and SWP-400 groups compared with control group. Superoxide radical (O2.-)and hydrogen peroxide formations resulted in a significant decreases in SWP-400 group compared with control group. Lipid peroxide (LPO)and oxidized protein(>C=O group) productions resulted in a significant decreases (SOD) and catalase (CAT) activiteies were remarkably increased (10∼25% and 40∼50%)in SWP-200 and SWP-400groups. Glutathione peroxidase(GSHPX) activities were significantly increased (about 10%) in SWP-400 groups compared with control group. These results suggest that anti-aging effect of silkworm powder (SWP) may play a pivotal role in attenuation a various chronic degenerative diseases age-related changes.

• Journal of Animal Science and Technology
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• 제63권5호
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• pp.1034-1063
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• 2021

The experiment was designed as a 3 × 3 × 2 factorial arrangement of treatments, including (i) pomegranate peel (zero, 4%, and 8 percent), (ii) oxidized soybean oil (zero, 2%, and 4 percent), and (iii) alpha-tocopherol (zero and 200 mg/kg). Supplementation of 8% pomegranate peel in diets significantly decreased the growth performance of broiler chickens. The supplementation of 4% oxidized oil in diets significantly reduced body weight gain and Feed intake whole experimental period (p < 0.05). The results showed that supplementation of 4% pomegranate peel in the diet was associated with low aspartate transaminase (AST), alanine transaminase, and malondialdehyde (MDA). However, 4% pomegranate peel increased the total antioxidant capacity (TAC) and superoxide dismutase (SOD) and glutathione peroxidase (GPx) activities. The supplemental 4% oxidized oil increased the serum AST, alanine aminotransferase (ALT), and MDA concentrations. TAC, SOD, and Catalase (CAT) activities were affected by 4% oxidized oil and alpha-tocopherol. The use of oxidized oil and vitamin E decreased MDA concentration. The serum glucose and globulin concentrations were significantly lower in the 8% pomegranate peel. The results showed that supplementation with 4% pomegranate peel in diets reduced serum low-density lipoprotein (LDL). The inclusion of 4% oxidized oil in diets reduced serum glucose and increased the blood lipid concentration such as triglyceride, cholesterol and LDL. Vitamin E supplementation reduced the serum cholesterol and LDL concentrations. The use of 8% pomegranate peel reduced red blood cell (RBC), hemoglobin, and packed cell value (PCV). The results indicated that supplementation with 8% pomegranate peel and 4% oxidized oil in diets decreased the immunoglobulin concentration in broilers. In addition, it was found that the inclusion of 4% pomegranate peel in diets resulted in higher IgG, IgM and total immunoglobulin. Pomegranate peel supplementation significantly decreased meat MDA concentration. Supplementation of 4% oxidized oil increased MDA of meat (p < 0.05). Vitamin E supplementation (200 mg/kg) significantly decreased MDA of meat (p < 0.05). Consequently, the results of this experiment showed that supplementation with 4% pomegranate peel had beneficial effects on broiler chickens. It was also found that feeding 2% oxidized oil in diets had no adverse effect on broilers.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2016년도 제50회 동계 정기학술대회 초록집
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• pp.372.1-372.1
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• 2016

Recently, there are a lot of diseases all around the world. Out of them, Atherosclerosis (AS) is the most common cause of stroke, cardiovascular mortality, and myocardial infarction. The macrophage-derived foam cell, which is formed by oxidized low-density lipoprotein (oxLDL), is the crucial marker for AS. In this study, we report a label-free capacitance imaging technique with multi-electrode array (MEA). The lipid-rich aorta arch lesions, which are derived from an apolipoprotein-E receptor-deficient (apoE-/-) mouse, exhibit higher capacitance than the lipid-free aorta arch, allowing the capacitance imaging of lipid region in atherosclerosis. To improve the contacts between MEA and tissue, polypyrrole(PPy)-coated multi walled carbon nanotubes (MWNTs) multi electrode array (PPy-MWNTs-MEA) was fabricated. Compared to TiN-MEA, PPy-MWNTs-MEA yielded lower contact impedance and better capacitance images. In addition, we have also developed a flexible MEA using single walled carbon nanotubes on a PET substrate. The lipid region could be discriminated in the capacitance images of the lipid-rich aorta arch lesions measured using flexible MEA, demonstrating a feasibility of in vivo applications.

• 한국자원식물학회지
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• 제20권5호
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• pp.475-480
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• 2007

과산화지질을 급여한 흰쥐에서 갈근 추출물이 체지질구성, 간장기능 및 항산화능에 미치는 영향을 검토했다. 혈장 총콜레스테롤량 및 혈장 중성지질량은 과산화지질첨가군 모두가 정상군 보다 증가하였으나 갈근추출물 첨가에 의해 하락하여, 대조군보다 낮은 수치를 보였다. 혈장 HDL-cholesterol량은 갈근추출물 첨가군이 대조군 보다 높은 경향을 나타내었으나 유의한 차이를 나타내지는 않았다(P>0.05). 간장의 총콜레스테롤량은 전 처리군에서 유의한 차이를 나타내지 않았으며, 중성지질량은 정상군보다 과산화 지질처리군 모두가 높은 수치를 보였다. 그러나 과산화지질 처리군 간에서는 갈근 처리군들이 대조군보다 낮은 경향을 보였다. 혈장 및 간장 내 TBARS량은 과산화지질 처리군 모두가 정상군보다 높은 값을 보였다. 그러나 과산화지질첨가군들 간에서는 갈근 처리군들이 대조군보다 낮은 경향을 보였다. 혈장 GOT 및 GPT의 활성치는 과산화지질첨가군들이 정상군보다 높은 수치를 보였으나 갈근처리에 의해 하락했다. 간장 GSH-Px, SOD 및 CAT활성치는 과산화지질 첨가군 모두가 정상군보다 낮은 값을 보였으나 과산화처리군 간에서는 갈근처리군이 대조군보다 높은 값을 보였다.

• 한국식품과학회지
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• 제25권6호
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• pp.614-619
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• 1993

Methyl linoleate에 ${\alpha}-Tocopherol$을 첨가하여(TML) $37^{\circ}C$에서 9일간 산화시키면서 산화생성물의 확인 및 생성기구에 대하여 GC/MS를 사용하여 검토하였다. TML군에서의 산화 생성물들은 methyl octanoate와 methyl-8-(2-furyl)-octanoate 및 9,13-trans, cis isomer와 9,13-trans, trans isomer로 밝혀졌다. 전보의 methyl linoleate(ML)에서의 산화생성물과 비교하여 볼 때 9-TMSO-12,13-epoxy-10-octadecenoate 대신 methyl octanoate가 생성되었다. ${\alpha}-Tocopherol$의 주된 산화물인 ${\alpha}-Tocopherol$ quinone은 반응 6일부터 생성되었으며, ${\alpha}-Tocopherol$은 aqueous media보다 lipid media에서 산화가 빨리 진행되는 것으로 나타났다. Methyl linoleate의 산화에 의한 생성물들의 생성과정 기구를 추정한 결과, 우선 methyl-9,13-hydroxy-octadecadienoate가 생성되고 다시 methyl-9-hydroxy-10 trans, 12 trans-octadecadienoate로부터 methyl-8-(2-furyl)-octanoate와 9-TMSO-12,13-epoxy-10-ortadecenoate 및 methyl octanoate가 생성된 것으로 사료되었다.

• 한방비만학회지
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• 제16권2호
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• pp.85-91
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• 2016

목적: 본 연구는 황금추출물이 과산화지질을 장기간 급여한 흰쥐의 지질대사, 산화반응 및 전염증성 cytokine의 생산에 미치는 영향을 검토하기 위해 수행되었다. 방법: 10주 동안 흰쥐에게 과산화지질을 과량으로 급여하여 생체 내에 과잉의 지질을 축적시킨 후, 황금추출물을 6주간 급여하였다. 그 후, 각 처리군별로 지질대사, 산화반응 및 전염성 cytokine의 생산에 미치는 영향을 조사했다. 결과: 혈액 내 유리지방산, 총지질, 총콜레스테롤, low density lipoprotein-cholesterol과 간장 내 총지질, 총콜레스테롤이 황금추출물 처리군에서 하락했다. 혈액 및 간장의 thiobarbituric acid 농도가 황금추출물 처리군에서 하락했다. 간장 내 항산화효소들(glutathione peroxidase, liver catalase, liver superoxide dismutase)의 활성치가 황금처리군에서 상승하였다. 전염증성 cytokine(interleukin $[IL]-1{\beta}$, tumor necrosis $factor-{\alpha}$, IL-6)의 농도는 황금추출물 처리군에서 하락했다. 반면에 IL-10의 농도는 황금추출물 처리군에서 증가했다. 결론: 이상의 결과들을 종합해 보면, 황금 추출물은 과산화지질을 급여한 비만쥐의 지질대사, 항산화반응 및 항염증반응에 긍정적인 효과를 나타내었음을 인식시켜 준다.

• 한국자원식물학회지
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• 제18권2호
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• pp.343-350
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• 2005

미나리즙이 과산화지질과 알코올을 급여한 흰쥐의 지질구성, 간장기능과 항산화능에 미치는 영향을 검토했다. 혈장 총콜레스테롤량은 과산화지질과 알코올을 급여한 처리군 모두가 정상군보다 증가하였다. 그러나 미나리즙 처리군들은 대조군보다 낮았다. 혈장HDL-cholesterol량은 미나리즙 처리군들이 대조군에 비하여 높은 값을 나타냈으며, 정상군과 유의한 차이를 나타내지 않았다. 혈장 Triglyceride량은 과산화지질과 알코올을 급여한 처리군 모두가 정상군 보다 증가하였으나, 미나리즙을 처리한 군이 대조군 보다 낮은 값을 보여, 하락하는 경향을 보였다. 간장의 총콜레스테롤량 및 Triglceride량은 대조군이 가장 높은 값을 나타내었으며, 정상군과 미나리즙 처리군간에는 유의한 차이를 나타내지 않았다. 혈장 및 간장의 TBARS량은 정상군과 미나리즙 처리군은 유의한 차이를 나타내지 않았으며, 대조군 보다 낮은 수치를 보였다. 혈장 GOT 및 GPT의 활성치는 과산화지질과 알코올의 급여에 의해 증가하였으나, 미나리즙 처리에 의해 하락했다(P<0.05). 간장 GSH-Px, SOD 및 CAT활성치는 미나리즙 처리에 의해 증가하였다.

• 대한본초학회지
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• 제25권1호
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• pp.13-21
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• 2010

Objectives : This study was purposed to the anti-oxidative effects of Polygonati Multiflori Caulis(henceforth PMC) on oxidized brain and liver cells in rats. Methods : After extraction of PMC with water, the water extract was divided into five fractions : hexane, ethyl ether, ethyl acetate, butanol and an aqueous fraction. The phenol contents of each fraction were measured. The lipid peroxidation inhibition effect were then investigated. Results : After processing PCM water and PCM fractionations on oxidized brain cells in rats, the SOD (super oxide dismutase) activity and glutathione content were increased, and the NO (nitric oxide) content was decreased. It had much higher SOD activity than liver cells in rats excluded in the n-BuOH and aqueous fractions. In case of oxidized liver cells in rats, the SOD activity and glutathione content increased, while both the NO content and the MDA (malondialdehyde) content decreased. It had much higher glutathione content than brain cells in rats in the every fractions. It had much lower MDA content than brain cells in rats in the Aqueous fractions and brain cells in rats had much lower MDA content than liver cells in rats in the total extract, n-hexane, EtOEt, EtOAc and n-BuOH fractions. Conclusions : PMC has anti-oxidative effect on oxidized liver cells and brain cells in rats, through there are differences in fraction. Additionally, Anti-oxidative effect of brain cells can be relaxed the mental nerve and it is related PMC effect.

• 한국수산과학회지
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• 제19권5호
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• pp.477-484
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• 1986

The interaction of myofibrillar protein with lipid or oxidized lipid was considered to be mostly contributing to the drop of digestibility of fish meat products. The digestibility of myofibrillar protein was $92.11\%$ for flounder and $88.04\%$ for hairtail fish, repectively, and as a rule it decreased as both the amount of lipid and reaction time increased. It also decreased with increase in the amount of added linoleate and oxidized linoleate. However, when the reaction continued for 6 hours or more the digestibility rather increased, which was provably due to the unfolding of protein structure. The hot air dried hairtail fish showed the lowest C-PER values among all dried fish products. The protein quality of flounder, hairtail fish and their dried ones except hot air dried ones measured by C-PER procedure were superior to that of ANRC casein. DC-PER values of all samples were greater than those of C-PER values and the greater discrepancies were noted in hairtail fish (fatty fish) products which possessed the lower in vitro protein digestibilities. Predicted diegstibilities, which were calculated using amino acid profiles, of all samples except raw ones were overestimated in comparison with in vitro protein digestibilities. From the observations so far, formation of complex of lipids and protein was thought to be the most important factor in lowering protein digestibility of the dried fish meat products.

• 대한한의학회지
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• 제23권2호
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• pp.164-179
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• 2002

Object: Death rate due to hypertension, atherosclerosis, ischemic heart disease and cerebral infarction induced by Westernized diet and increased average life span is on the rise. Decrease in blood circulation, activation of thrombus generation and intravascular lipid accumulation, cited as the principal causes of the above mentioned diseases in recent studies, result in circulatory disturbance and blood vessel obstruction leading to ischemic cell death of heart, brain and peripheral vessels. Method: We investigated the biochemical changes in microvascular permeability, aggregation of platelet and the intravascular lipid accumulation in induced-diabetic rat using Streptozotocin. We also studied the effects of Woohwangcheongsirn-won after oral administration on blood circulation, platelet function and lipid metabolism. The results are as follows: I. Woohwangcheongsim-won increased blood circulation in microvessels. 2. Woohwangcheongsim-won increased the reduced erythrocyte deformability in diabetes. 3. Woohwangcheongsim-won induced the reduction of contents of 2, 3-DPG, but failed to affect the reduced contents of ATP in erythrocyte in diabetes. 4. Woohwangcheongsim-won reduced the activity of Ca/sup 2+/-ATPase in the membrane of erythrocyte. 5. Woohwangcheongsim-won reduced the platelet aggregation evoked by platelet agglutinin factor. 6. Woohwangcheongsim-won reduced the production of platelet-derived granules. 7. Woohwangcheongsim-won reduced the production of metabolites of arachidonic acid in diabetes, and also reduced the production of increased thromboxane B2. 8. Woohwangcheongsim-won reduced the synthesis of oxidized LDL-cholesterol. In conclusion, Woohwangcheongsim-won enhanced blood circulation in microvesseles, erythrocyte deformability and inhibited the increased platelet aggregation and the synthesis of oxidized LDL-cholesterol in diabetes. Therefore Woohwangcheongsim-won is believed to positively affect blood circulation (J Korean Oriental Med 2002;23(2):164-179)