Lee, Hee Jae;Lim, So Young;Kang, Min-Gyung;Park, Jeongjin;Chung, Hyun-Jung;Yang, Soo Jin
Journal of the Korean Society of Food Science and Nutrition
/
v.44
no.4
/
pp.491-496
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2015
The purpose of this study was to assess the antioxidant, anti-inflammatory, and immuno-enhancing effects of Daebong persimmon (DP) and Bansi (BS) in vivo. Two types of astringent persimmons (DP and BS) were used for this experiment. C57BL/6J mice were assigned to the following groups: 1) lean control, 2) high-fat diet control (HF), 3) A region DP (3% wt/wt) with HF diet (A-DP), 4) B region DP with HF diet (B-DP), 5) C region DP with HF diet (C-DP), 6) D region BS with HF diet (D-BS), and 7) E region BS with HF diet (E-BS). All mice were sacrificed after 4 weeks of treatment, after which blood and tissues were collected. Antioxidant enzyme activities, inflammatory markers, and immune factors were evaluated. DP and BS treatments did not alter food intake or body weight, compared with HF. Administration of B-DP increased catalase activities in serum. Hepatic levels of malondialdehyde, a product of lipid peroxidation, were significantly lower in A-DP mice than in the HF group. A-DP had down-regulatory effects against inflammation induced by high-fat diet feeding, as shown by significant reduction of interleukin (IL)-$1{\beta}$, IL-6, and tumor necrosis factor-${\alpha}$. Additionally, A-DP treatment exerted an immuno-stimulatory effect, as shown by increasing levels of immunoglobulin G. DP treatment improved the level of insulin-like growth factor-1. These results indicate that DP has beneficial health effects on oxidative stress, inflammation, and immunity in vivo.
An embedded system is called a multi-mode embedded system if it performs multiple applications by dynamically reconfiguring the system functionality. Further, the embedded system is called a multi-mode multi-task embedded system if it additionally supports multiple tasks to be executed in a mode. In this Paper, we address a HW/SW partitioning problem, that is, HW/SW partitioning of multi-mode multi-task embedded applications with timing constraints of tasks. The objective of the optimization problem is to find a minimal total system cost of allocation/mapping of processing resources to functional modules in tasks together with a schedule that satisfies the timing constraints. The key success of solving the problem is closely related to the degree of the amount of utilization of the potential parallelism among the executions of modules. However, due to an inherently excessively large search space of the parallelism, and to make the task of schedulabilty analysis easy, the prior HW/SW partitioning methods have not been able to fully exploit the potential parallel execution of modules. To overcome the limitation, we propose a set of comprehensive HW/SW partitioning techniques which solve the three subproblems of the partitioning problem simultaneously: (1) allocation of processing resources, (2) mapping the processing resources to the modules in tasks, and (3) determining an execution schedule of modules. Specifically, based on a precise measurement on the parallel execution and schedulability of modules, we develop a stepwise refinement partitioning technique for single-mode multi-task applications. The proposed techniques is then extended to solve the HW/SW partitioning problem of multi-mode multi-task applications. From experiments with a set of real-life applications, it is shown that the proposed techniques are able to reduce the implementation cost by 19.0% and 17.0% for single- and multi-mode multi-task applications over that by the conventional method, respectively.
Kim, Ji-Soo;Heo, Jin-Sun;Choi, Jong-Won;Kim, Gun-Do;Sohn, Kie-Ho
Journal of Life Science
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v.25
no.10
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pp.1081-1090
/
2015
Diabetes has been one of major health risks in industrialized countries. Allium hookeri is a wild herb distributed in India and Myanmar. The root of the plant has been used as food and medicine in Southeast Asia. We investigated Allium hookeri extract improves type 2 diabetes mellitus in C57BL/KSJ db/db obese mouse. C57BL/KSJ db/db obese mouse arise out of Type 2 diabetes and we treated Allium hookeri methanol extract 400 mg/kg (AH 400), 800 mg/kg (AH 800), positive control group (thiazolidinedine;TZDs) were administered orally for 8weeks. AH treated group normalized lipid enzyme system (triglyceride, total cholesterol, HDL-cholesterol and LDL-cholesterol) and serum glucose, HbA1c and plasma insulin level. AH treated group recovered β-cell damage by hyperglycemia and fatty liver disease. AH treated group significantly up regulated expression of Peroxisome proliferator-activated receptor gamma (PPAR-γ), pyruvate dehydrogenase kinase4 (PDK4), Sterol regulatory element-binding protein 1c (SREBP 1) and fork head box O1 (FOX 01) proteins in C57BL/KSJ db/db obese mouse liver. And we found that AH treated group decreased hepatic malondialdehyde formation in C57BL/KSJ db/db obese mouse liver. These results indicate that Allium hookeri methanol extract might be a potential anti-diabetic agent and could be useful in the treatment of type 2 diabetes mellitus.
The effects of different packaging methods such as aerobic, vacuum, and wrap packaging, on quality characteristics of fresh chicken breast meat during cold storage were investigated. The results show that crude fat content in aerobic packaging method was significantly (P<0.05) higher compared to the others, whereas moisture, protein and ash contents were not significantly different. pH in wrap packaging was increased with storage time and reached the highest values at 10 days. Both lightness and redness of the meat were increased with storage time, but lightness was significantly (P<0.05) higher in wrap packaging than in the others. Thiobarbituric acid (TBA) and volatile basic nitrogen (VBN) values were increased in all treatments at 10 days. VBN at 5 days were over 20 mg%, and TBA values at 10 days were between 0.82~1.05 mg malondialdehyde/kg meat. TBA showed significantly (P<0.05) lower in vacuum packaging compared to the other methods. Therefore, our results suggested that vacuum packaging decreases lipid oxidation of chicken breast meat, thereby enhancing the shelf life, compared to aerobic and wrap packaging methods.
Laboratory and greenhouse studies were conducted to determine differential sensitivities on absorption of $^{14}$ C-oxyfluorfen and the anatomical responses in wheat and barley to protoporphyrinogen oxidase-inhibiting herbicides [oxyfluorfen (2-chloro-1- (3-ethoxy -nitrophen-oxy)-4-(trifluoromethyl) benzene, acifluorfen(5-[2-chloro-4-(trifluoromethyl) phenoxy]-2-nitro-benzoic acid), bifenox(methyl-5-(2, 4-dichlorophenoxy)-2-nitrobenzoate) and oxadiazon(5-tert-butyl-3-(2, 4-dichloro-5-isopropoxyphenyl)-1, 3, 4-oxadiazol-2-one)]. I$_{50}$ value of the tolerant wheat cultivars to oxyfluorfen was about 10$^{-4}$ , whereas that of the susceptible barley cultivars was about 10$^{-6}$ M, showing significant difference between the two groups. When foliage were applied with acifluorfen, bifenox or oxadiazon, the oxyfluorfen-tolerant wheat showed less decreased in shoot fresh weight and chlorophyll content than the susceptible barley. Also, when soil-applied with these herbicides test plants showed similar tendency in foliar application. Electrolyte leakage from the tissue treated with these compounds was the more influenced in the barley than the wheat. Malondialdehyde(MDA) production as index of lipid peroxidation was greater in the barley than the wheat by treatment of these compounds. Therefore, the differential sensitivities of wheat and barley to protoporphyrinogen oxidaseinhibiting herbicides was showed by our greenhouse and in vitro experiment. The absorption rates of $^{14}$ C-oxyfluorfen were higher in the barley than the wheat. And this tendency was showed appararitly difference by increase of treatment durations. After the oxfluorfen and oxadiazon treatment, the tolerant wheat did not show the structural damage in leaf surface, but the susceptible barley was damaged in the leaf waxy layer. However, the acifluorfen and bifenox treatment showed no difference between wheat and barley. The anatomical changes by these compounds treatment were not observed in the tolerant wheat but epidermal cell and mesophyll cell were highly broken in the susceptible barley.
Kim, Hyang-Suk;Choi, Eun-Ok;Park, Cheol;Choi, Yung-Hyun;Hyun, Sook-Kyung;Hwang, Hye-Jin
Journal of the Korean Society of Food Science and Nutrition
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v.40
no.11
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pp.1556-1561
/
2011
The purpose of this study was to investigate antioxidant enzyme activity and vitamin E concentrationin in Sprague-Dawley rat after being fed various extracts of Hizikia fusiforme. There were six experimental groups: control group (C), H. fusiforme ethanol extract group (EtOH), H. fusiforme dichloromethane fraction group ($CH_2Cl_2$), H. fusiforme ethylacetate fraction group (EtOAc), H. fusiforme butanol fraction group (n-BuOH), H. fusiforme water fraction group ($H_2O$). H. fusiforme extracts (400 mg/kg B.W) were orally administrated to the rats every day for 4 weeks. The activities of superoxide dismutase (SOD), catalase, glutathione peroxidase (GSH-Px), and concentrations of malondialdehyde (MDA) and vitamin E in the liver and blood were measured. The activity of SOD in the liver was significantly higher in the $CH_2Cl_2$ and $H_2O$ groups (p<0.05) than in the control and other extract groups. The SOD activity in serum increased significantly in all H. fusiforme groups (p<0.05) compared to the control group and it was also significantly higher in the EtOH and $H_2O$ groups (p<0.05) than in other extract groups. The serum catalase activity increased significantly in the n-BuOH group (p<0.05) compared to the control and other extract groups. The plasma MDA concentration decreased significantly in the n-BuOH and $H_2O$ group (p<0.05) compared to the control group. Serum concentration of ${\alpha}$-tocopherol showed no significant differences in most of the experimental groups, but it was significantly higher in the EtOAc group (p<0.05). The ${\alpha}$-tocopherol concentrations in the liver showed a significant increase in the $CH_2Cl_2$ and $H_2O$ groups (p<0.05) compared to the control and other extract groups. The liver ${\gamma}$-tocopherol concentrations in H. fusiforme extract groups showed a tendency to increase compared to the control group and it was significantly higher in the $H_2O$ group (p<0.05) than in other extract groups. These results suggest that supplementation of water extracts of H. fusiforme extract could be effective in improving the antioxidant system.
Background: Ischemia-reperfusion injury is one of the major contributing causes of early graft failure in lung transplantation. It has been suggested that triiodothyronine (T3) may ameliorate ischemia-reperfusion injury to various organs in vivo and in vitro. Predicting its beneficial effect for ischemic lung injury, we set out to demonstrate it by administering T3 into the in situ canine ischemia-reperfusion model. Material and Method: Sixteen adult mongrel dogs were randomly allocated into group A and B. T3 $(3.6\mug/kg)$ was administered before the initiation of single lung ischemia in group B, whereas the same amount of saline was administered in group A. Ischemia was induced in the left lung by clamping the left hilum for 100 minutes. After reperfusion, various hemodynamic parameters and blood gases were analyzed for 4 hours while intermittently clamping the right hilum in order to allow observation of the injured left lung function. Result: Arterial oxygen partial pressure $(PaO_2)$ decreased 30 minutes after reperfusion and recovered gradually thereafter in both groups. In group B the decrease of $PaO_2$ was less marked than in group A. The recovery of $PaO_2$ was faster in group B than in group A. The differences between the two groups were statistically significant from 30 minutes after reperfusion $(125\pm34$ mmHg and $252\pm44$ mmHg, p<0.05) until the end of the experiment $(178\pm42$mmHg and $330\pm37$ mmHg, p<0.05). The differences in the arterial carbon dioxide pressure, airway pressure and lung compliance showed no statistical significance. The malondialdehyde (MDA) level, measured from the tissue obtained 240 minutes after reperfusion, was lower in group B $(0.40\pm0.04\mu$M) than in group A $(0.53\pm0.05\mu$M, p<0.05). The ATP level of group B $(0.69\pm0.07\mu$M/g) was significantly higher than that of group A $(0.48\pm0.07\mu$M/g, p<0.05). The microscopic exami nation revealed varying degrees of injury such as perivascular neutrophil infiltration, capillary hemorrhage and interstitial congestion. There were no differences in the microscopic findings between the two groups. CONCLUSION T3 has beneficial effects on the ischemic canine lung injury including preservation of oxygenation capacity, less production of lipid peroxidation products and a higher level of tissue ATP. These results suggest that T3 is effective in pulmonary allograft preservation.
Background: Ischemia reperfusion injury is known to contribute to the major causes of the early graft failure in lung transplantation. Triiodothyronine (T3) has been suggested to ameliorate ischemia reperfusion injury from both in vivo and in vitro experiments of various organs. Prospecting its beneficial effect for pulmonary allograft preservation, we made a new solution by adding T3 into the extracellular type dextran solution. Material and Method: Twelve adult mongrel dogs underwent left lung allotransplantation. Six donor dogs were flushed with the new solution(Group 1, n=6), and the remaining six were flushed with Euro-Collins solution to serve as controls(Group 2, n=6). Allografts were stored in each preservation solution for 20 hours at 4$^{\circ}C$. Left single lung transplantations were performed. The right pulmonary artery and the right main bronchus were clamped at 15 minutes after the reperfusion and maintained throughout the experiment to evaluate the transplanted left lung function. Result: Arterial carbon dioxide tension was better in group 1 than in group 2 throughout the experiment period and the difference was statistically significant at 2 hours after reperfusion(28.0${\pm}$3.0 mmHg and 53.1${\pm}$17.4 mmHg, p<0.05). The differences of arterial oxygen partial pressure, peak airway pressure and pulmonary vascular resistance showed no statistical significance. The malondialdehyde(MDA) level, measured from tissue obtained at 120 minutes after reperfusion showed no statistically significant difference. The tissue wet/dry ratio of group 1(649${\pm}$27 %) was significantly lower than that of group 2(686${\pm}$71 %, p<0.05). The microscopic examination revealed varying degrees of injury represented mainly by findings such as perivascular neutrophil infiltration, capillary hemorrhage and interstitial congestion. These findings were less severe in group 1 than those in group 2. Conclusion: The new solution demonstrated superior allograft preservation after 20 hour ischemia compared to Euro-Collins solution in canine single left lung transplantation model, these results suggest that T3 might be a promising agent for pulmonary allograft preservation.
This study was designed to investigate the biochemical pollutant marker for diagnosis of marine pollutions by changes in oxygen radicals and their scavenger enzymes of the flounder (Pleuronichthys cornutus) in the Yellow Sea of Korea Protein contents in brain and muscle of wild flounders in the Yellow Sea were remarkably lower $(15\~45\%,\;and\;35\~45\%,\;respectively)$ than those of wild flounder in Pohang (control) of the East Sea. Lipid peroxide (LPO) levels in serum of wild flounders in the Yellow Sea were Significantly higher $(30\~70\%)$ than those of wild flounder in Pohang. Hydroxyl radical formations in serum of wild flounders in the Yellow Sea were significantly high $(15\~90\%)$ than those of wild flounders in Pohang. Superoxide dismutase (SOD) activities in serum of wild flounders in the yellow Sea were significantly lower $(20\~40\%)$ than those of wild flounders in Pohang, and glutathione peroxidase (GSHPx) activities in brain of wild flounders in the Yellow Sea were also significanlty lower $(10\~60\%)$ than those of wild flounders in Pohang. These results suggest that significantly decreases of protein contents in brain and muscle, remarkable in creases of malondialdehyde (LPD) in serum and decreases of SOD and GSHPx activities in serum and brain of wild flounders of the Yellow Sea may be used as a biochemical pollutant markers for diagnosis of marine pollutions.
Journal of the Korean Society of Food Science and Nutrition
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v.38
no.8
/
pp.1016-1023
/
2009
The purpose of this study was to identify the inhibitory effect of hepatic toxicity and liver lipid metabolism after administration of Artemisia capillaris and Paecilomyces japonica. Along with the control, SD rats were divided into ethanol treated group with subgroups of 6% Artemisia capillaries (6A), 4% Artemisia capillaris+2% Paecilomyces japonica (4A2P), 3% Artemisia capillaris+3% Paecilomyces japonica (3A3P), 2% Artemisia capillaris+4% Paecilomyces japonica (2A4P) and 6% Paecilomyces japonica (6P). In this study we also intended to verify the optimum ratio of Artemisia capillaris and Paecilomyces japonica which can reduce hepatotoxicity. Artemisia capillaris and Paecilomyces japonica reduced cholesterol and triglyceride levels which were increased by ethanol. Total-cholesterol level was decreased the most in the groups of 4A2P and 3A3P. On the other hand, activity of superoxide dismutase (SOD) was enhanced significantly (p<0.05). Malondialdehyde (MDA) activity was decreased significantly (p<0.05) in the subgroup of 6A and 4A2P. When the ratio of Artemisia capillaris and Paecilomyces japonica was 2:1, the improvement of the rat serum and liver lipid metabolism and the alleviation of hepatic damage by ethanol were the most effective in this study. Therefore, it can be considered that the symptoms of severe chemically induced hepatotoxicity could be reduced by Artemisia capillaris and Paecilomyces japonica administration.
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