This research seeks a basis for developing new anti-inflammatory medicine by investigating Cornus Walteri extract for its anti-inflammatory effects. After the injection of LPS in to rats with Cornus Walteri extract, its anti-inflammatory effects were compared among the treatment groups. The plasma concentration of IL-$1{\beta}$, IL-6 and TNF-${\alpha}$ peaked at 5h after LPS injection, and the values of the Cornus Walteri extract groups were lower than those of the control group. In the increment of concentration of these cytokines at 2h and 5h after LPS injection, the Cornus Walteri groups were lower than that of control group. The plasma concentration of IL-10 peaked at 5h after LPS injection, and the values of the Cornus Walteri extract groups were higher than those of the control group. In the increment of cytokines concentration at 2h and 5h after LPS injection, the Cornus Walteri groups were higher than that of control group. Liver cytokines measurement was done at 5h after LPS injection. The concentration of liver IL-$1{\beta}$ and IL-6 in the Cornus Walteri groups was lower than that of the control group. The concentrations of liver TNF-${\alpha}$, and IL-10 showed no significant differences among all the treatment groups. In the studies of lipopolysaccharide-exposed Raw 264.7 cells, the concentration of IL-$1{\beta}$, IL-6 and TNF-${\alpha}$ in the lipopolysaccharide-exposed cells groups was higher than that of control group (normal group). However, in lipopolysaccharide-exposed cells groups, they showed lower values than those of control group and these values showed a tendency to decrease in the Cornus Walteri groups. The concentration of IL-10 in the lipopolysaccharide-exposed cells groups was higher than that of control group (normal group), and among the lipopolysaccharide-exposed cells groups, all Cornus Walteri extract groups showed higher values than single lipopolysaccharide-exposed cells groups. This studies have shown that in vitro and in vivo Cornus Walteri extracts are significantly more sensitive to inflammatory cytokines and LPS induced lethality. We conclude that the Cornus Walteri extracts have an functional material for inflammatory activities.
A flock of Arbor Acres chickens were reared in cages and provided with high energy pelleted feed. At 14 d of age, a total of 350 birds were separated into 3 groups randomly as follows: 100 birds were exposed to ambient temperature of 20$^{\circ}C$ as a control group, 150 birds were exposed to lower ambient temperature of 11$^{\circ}C$ to induce ascites (group I), and another group of 100 birds were exposed to lower ambient temperature of 11$^{\circ}C$ and fed diet containing 1% L-arginine for ascitic prophylactic treatment (group II). Blood and tissue samples (lung and liver) were collected from chickens at 3, 4, 5, 6 and 7 wk of age subsequently, to analyze the concentration and activities of free radicals, mononaldehyde (MDA), superoxide dismutase (SOD), Nitric Oxide (NO) and Nitric oxide synthase (NOS). The results showed that the prevalence of ascites in the control, group I and group II was 3%, 9.33% and 3% respectively (p<0.01). The concentration of free radicals in the lungs of 3 wks old preascitic broilers in group I was significantly higher than in the corresponding control group (p<0.05). The concentrations of free radicals in lung and liver in the 7 wk period, and that of NO and SOD in the plasma were significantly lower in group I than in the control group (p<0.01). However, the accumulated MDA contents in group I were higher than in the control group and group II (p<0.05), respectively. In the same way, the activity of NOS in group II was higher than both group I and control group (p<0.01) during the 7 wk period. There was no significant difference between SOD activities of group II and the control group (p>0.05), and also insignificant difference between NOS in group I and the control group (p>0.05). The results of this study indicate that there was a significant decrease in the concentration of MDA in group II. On the other hand, the concentration of free radicals decreased and MDA concentration increased in group I during the 7 wk period. The reduction in concentration of MDA in group II, following arginine supplementation may be associated with the scavenging activity of NO.
Histamine, 0.5 mg as histamine base in 4 ml of normal saline solution, was injected into rabbits anesthetized with nembutal and the mean blood pressure was kept in the range of $52{\sim}80\;mmHg$ for over one hour by supplemental additions. Following the injection of the test substances, 300 mg of urea and 200 mg of antipyrine intravenously, serial blood samples were obtained from the femoral artery and the internal jugular vein at $0.5{\sim}3$ minutes interval. The decreasing patterns in the concentrations of arterial and venous blood plasma samples were compared with each other. The ratio of the concentration of brain tissue to that of the final arterial plasma was also studied. By these measures the degrees of penetration of the test substances in the brain in the control and in the histamine treated rabbits were observed. The concentrations of antipyrine and urea in the arterial blood plasma were decreasing exponentially with respect to the time elapsed. The venous concentrations were anticipated to increase initially and to cross the arterial concentration curve in the point of equlibrium between the plasma and the tissue. On the contrary to the expectation venous concentration also revealed the decreasing tendency similar to that of arterial plasma. The similarity between these two curves, arterial and venous, would be atributable to the fact that the cerebral blood flow rate was large enough and the rising phase in the venous concentration curve was instantly over before serial blood samples were taken. Inspite of some similarity in the decreasing tedency in both concentration curves there were appreciable discrepancies between the arterial and venous plasma which would reflect the situation far from the equlibria among several compartments in the brain. Changes in plasma potassium levels caused by the injection of histamine or bleeding were observed, too. Using 8 rabbits as the control and 12 rabbits for the histamine treated group following results were obtained: 1. Both of the concentration curves, arterial and venous, declined rapidly at_first and slowly later on and approached same equilibrium concentration with the passage of time after a single injection. The time at which attained the same concentration was $2.0{\pm}0.54\;min.$ in the control and $4.3{\pm}1.92\;min.$ in the histamine treated group with respect to antipyrine. On the other hand in the case of urea they were $2.4{\pm}0.59\;min.$ in the control and $4.4{\pm}1.31\;min.$ in the histamine group, respectively. In the histamine treated group enlarged spaces for distribution of test substances were postulated. 2. The concentration of antipyrine in the brain tissue water revealed no significant differences between the control and experimental groups, showing $212{\pm}40.2\;mg/l$ in the control and $206{\pm}64.1\;mg/l$ in the histamine treated group. On the other hand urea revealed higher value in the histamine treated group than in the control, showing an enhanced penetration of urea into the tissue after injection of histamine. Urea concentration in the brain water was $32.3{\pm}3.36\;mg%$ in the control and $39.2{\pm}4.25\;mg%$ in the histamine treated group. 3. The distribution ratio of antipyrine in the brain tissue was very close to unity in the histamine treated animals as well as in the control. 4. The average of the distribution ratio of urea in the control animals was 0.77 and it showed the presence of blood-brain barrier with regard to urea. However in the histamine treated animals the distribution ratios climbed up to 0.86 and they were closer to unity than in the control animals. Out of 12 cases 5 were greater than 0.9 and 8 exceeded 0.85. It appeared that histamine enhanced the penetration of urea through the barrier. 5. Histamine injection and or hemorrhage caused an elevation of the concentration of potassium in plasma. In the event that histamine and hemorrhage were applied together the elevation of potassium exceed the elevation seen at the histamine alone. There was no evidence that the leakage of potassium from the brain tissue was dominant in comparison with the general leakage from the whole body.
본 논문은 니켈-텅스텐 합금 도금 공정액에 대해 혼합 상태에서 각 공정액에 대한 농도를 정확하게 측정할 수 있는 센서 및 이를 기반으로 정밀한 농도 제어를 수행할 수 있는 제어 시스템 대한 논문이다. 최근 인쇄회로기판 시장은 전자산업의 발달로 커지고 있으며, 이에 따라 금 소비도 급격하게 증가되고 있다. 하지만 금은 비싼 원자재로 금을 대체하거나 줄이기 위한 다양한 복합 도금 공정액 개발이 이루어지고 있다. 이에 비해 복합도금 공정액을 실시간으로 측정할 수 있는 센서 개발은 아직 미진한 상태이다. 더군다나 실시간으로 도금 품질을 극대화 할 수 있도록 복합 도금 공정액 농도를 측정하고 이를 토대로 농도를 제어하기 위한 시스템은 전무한 실정이다. 이에 본 논문에서는 이러한 복합 도금 공정액에 대한 농도를 정확하게 측정할 수 있는 센서 및 농도 제어를 수행하기 위한 시스템을 개발하고자 한다. 이를 위해 분광광도법을 기반으로 복합도금 공정액 농도를 정밀하게 측정할 수 있는 센서를 개발하며 센서 농도에 대한 피드백 제어를 통해 농도를 정확하게 유지할 수 있는 시스템을 개발한다.
Objective : This experiment has been done to evaluate the effects of Gamisogunjung-tang(GST) on antioxidant capability and lipidic concentration in blood which are presumed to be related to aging. Method : In this study, we divided 14 weeks old SD rats into normal group, control group and GST group. Control and GST group were induced aging by D-galactose. At the same time GST group were administered extract of Gamisogunjung-tang for 6 weeks. After then we took blood, and measured the activities of SOD, GSH-px, catalase in erythrocytes and measured TBARS values, concentrations of total lipid, tryglyceride, total cholesterol, HDL-cholesterol in plasma. Results : The activities of SOD, GSH-px, catalase in erythrocytes increased significantly in GST group compared with control group. The value of TBARS and the concentration of total lipid, total cholesterol in plasma decreased significantly in GST group compared with control group. The concentration of HDL-cholesterol increased significantly in GST group compared with control group. The concentration of triglyceride were not noticeable. Conclusion : it is considered that Gamisogunjung-tang has an influence on control aging by activation the antioxidative enzyme systems in erythrocytes and decreasing the concentration of lipid in blood plasma.
An experiment was carried out to study the effect of monensin administration on mammary functions in crossbred Holstein cattle. Fourteen non-pregnant late lactating crossbred Holstein cattle, approximately 270 days postpartum, were selected for the experiment. They were divided into two groups of 7 animals each. Seven animals in the treated group were given sodium monensin orally in a slow-release capsule. Animals in both control and treated groups were fed the similar diet to maintain milk production and body score at 2.5. Rice straw was fed as a source of dietary fiber throughout the experimental period. After monensin administration, a significant increase in the molar percent of ruminal propionate (p<0.05) and a significant decrease in the molar percent of ruminal acetate (p<0.05) were apparent in comparison to the pretreated period. The ratio of acetate to propionate concentration decreased significantly after monensin administration (p<0.05), while it was maintained at the similar level throughout the period of experiment in the control group. Monensin did not affect the molar percent of ruminal butyrate and valerate. The concentration of milk allantoin between the control group and monensin treated group was not different. An excretion rate of allantoin in milk decreased in animals treated with monensin (p<0.05). Mammary blood flow did not show significant difference between control and monensin treated groups. The plasma glucose concentration, arteriovenous concentration difference and mammary gland uptake of glucose remained constant in both groups. Milk yield of the later stage of lactation in the control group declined during lactation advance while a tendency to increase in the milk yield was apparent after 21 days monensin administration. Milk compositions for concentration of lactose, fat and protein in both control group and monensin treated group did not change throughout the experimental periods. From these results, it can be concluded that the action of monensin could affect the ruminal fermentation pattern. Monensin could not increase milk yield in the late lactating period.
The present experiments were designed to investigate the effect of Ijntang, Sagoonjatang, and Yuggoonjatang on the hyperlipidemia induced rabbit. In order to control the precise chemical and physical condition, the experimental rabbits were supplied with calory limited food. The Hyperlipidemia rabbits were induced by oral administration of cholesterol (250mg/kg) for 4 weeks. The results were as followings : 1. The hyperlipidemia (control) group increased the concentration of serum glucose to $204.1{\pm}2.63\;mg/dl$ at the 4th. week, however, the other drug administrated groups such as Ijintang, Sagoonjatang, and Yuggoonjatang decreased significantly. 2. The control group increased the concentration of serum totalcholesterol to $299.0{\pm}4.18\;mg/dl$ at the 4th. week, however, the other drug administrated groups Ijintang, Sagoonjatang, and Yuggoonjatang decreased significantly. 3. The control group increased the concentration of serum total lipid to $429.1{\pm}1.72\;mg/dl$ at the 4th. week, however, the other drug administrated groups such as Ijintang, Sagoonjatang, and Yuggoonjatang decreased significantly. 4. The control group increased the concentration of serum triglyceride to $149.3{\pm}3.01\;g/dl$ at the 4th. week, however, the other drug administrated groups such as Ijintang, Sagoonjatang, and Yuggoonjatang decreased significantly. 5. The control group increased the concentration of serum HDL-cholesterol to $83.0{\pm}1.09$\;mg/dl$ at the 4th. week, and, the other drug administrated groups such as Ijintang, Sagoonjatang, and Yuggoonjatang increased significantly. 6. The lipid deposition to the aortic endothelium decreased more at the Yuggoonjatang group than the other groups. According to the above experimental results, Yuggoonjatang is assumed to have a more curative effect against hyperlipidemia than the other drug such as Ijintang and Sagoonjatang.
Objectives The aim of this study is to evaluate the fracture healing effect of Jinmu-tang (JM) on femur fractured rats. Methods Rats were randomly divided into 5 groups (normal, control, positive control, JM extract with low concentration and JM extract with high concentration). All group except normal group went through both femur fracture. Normal and control group received no treatment at all. Positive control group were medicated with tramadol (20 mg/kg) once a day for 14 days. Experimental group was orally medicated with JM extract (10 mg/kg for low concentration, 50 mg/kg for high concentration) once a day for 14 days. In order to investigate fracture healing process, plasma and serum were obtained. Also, micro-computed tomography was conducted to see the frature site visually. Immunohistochemistry for transforming growth factor-β1, Ki67, alkaline phosphatase, runt-related transcription factor 2, receptor activator of nuclear factor kappa-β, tartrate resistant acid phosphatase was conducted to observe bone healing progress after 14 days since fracture occured. Aspartate aminotransferase, alanine aminotransferase, blood urea nitrogen and creatinine levels were measured in plasma, for hepatotoxicity and nephrotoxicity of JM extract. Osteocalcin was measured to observe activity of osteoblast. Results Through Micro-CT, more fracture healing was observed on both experimental group than control and positive control group. Through Hematoxylin & Eosin and safranin O staining showed bone cell proliferation and bone formation in the experimental group. RANK was significantly increased in the experimental groups. JM with high concentration showed statistically significant of TGF-β and Osteocalcin. NO, TRAP and ALP were not significantly changed. Liver toxicity was not significantly observed. Creatinine significantly increased in both experimental groups after 28 days. Conclusions As described above, JM extract showed anti-inflammatory effect, promoted fracture healing by stimulating the bone regeneration factor, and showed little hepatotoxicity and nephrotoxicity. In conclusion, JM extract can promote fracture healing and it can be used clinically to patients with fracture.
We investigated the concentration degree of VOCs for ambient air in the air environment control area of Kyonggi-do in 2001. The VOCs showing higher concentration were in the ascending order of Toluene > n-Butane > 1-Butene > Benzene > n-Hexane. The concentration distribution ratio mentioned above showed almost same pattern in each city. The relative concentration ratio of Benzene, Toluene, Ethylbenzene, Xylenes which are aromatic VOCs were 1 : 6.3 : 0.6 : 1.6. It was similar to the pattern in 1999 but different from the pattern in 2000. In the aspect of seasons, the highest B.T.E.X concentration was indicated in fall and in the aspect of areas, the higher concentration showed in the ascending order of Buchon > Ansan > Kwangmyong > Shihung > Sungnam. The average concentration of target VOCs for ambient air in the air environment control area of Kyonggi-do showed lower concentration than the metropolis of Seoul but higher concentration than Kwang-ju city and Dae-gu city. The amount of total VOCs was increasing, comparing with it last year and the more increasing tendency is anticipated so that it will need to establish the proper regulative criteria.
Internal mass transfer during osmotic concentration of apples in sugar solutions was exami-ned as a function of concentration temperature and immersion time of those solutions using moisture loss sugar gain molality and rate parameter. Influence of osmotic concentration processes on browning reaction was also evaluated compared to control In creasin the concen-tration and temperature of sugar solutions increased moistrue loss sugar gain molality and rate parameter. Water loss was rapid early in the process and then levelled off, The same phenomena were occurred on sugar gain only in higher concentration(60$^{\circ}$ brix). IN lower concentration (30$^{\circ}$brix) sugar gain was gradually increased during whole process. Moisture loss during osmotic concentration using a sugar solution(60$^{\circ}$ brix 6$0^{\circ}C$) with 180min immer-sion time was 45.79% Effect of osmotic concentration befor air dried to 4% M.C(wet basis) on browning reaction was significant. Minimum browning reaction during air drying was carried out using a pretreatment such as osmotic concentration in sugar solution(60$^{\circ}$brix 45$^{\circ}C$) with 150min immersion time(O.D=0.01) compared to control(O.D=0.17)
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