The rate of metallothionein synthesis on cadmium-poisoned rats reflects the level of toxicity, and also it reduces the toxicity which is caused by the uptake of cadmium. Chlorella supplementation in the diets of the cadmium-poisoned rats decreased the concentration of cadmium in blood and urine compared with the control group. Although the liver and kidneys of rats are major target organs of cadmium and coherence of metallothionein and cadmium, no previous study has determined the correlation between the rate of metallothionein synthesis in the liver and kidneys of rats and dietary supplementation of chlorella with cadmium uptake. This study analyzed total metallothionein level on the tissue of the liver and kidneys, the concentration of cadmium bound to the metallothionein, and the total concentration of cadmium on the tissue of the liver and kidneys after dietary supplementation with 1%, 5%, and 10% dried chlorella and 40 ppm of cadmium to 46 male SD rats (mean weight: $150\pm20\;g$) for 4 weeks. According to the data analysis of the total rate of metallothionein synthesis in the liver and kidneys, the group of SD rats on the supplementation with 1% chlorella and 40 ppm of cadmium showed a rate of $93.2\pm8.9\;ng/g$, a significant decrease of 58.8% compared to that of the control group of SD rats on the supplementation with cadmium only, which showed a rate of $227.3\pm32.5 ng/g$ (P=0.0001). In contrast, no significant difference was observed through the changing of chlorella concentrations between 5% and 10% chlorella supplementation with cadmium. The group supplemented with 1% or greater chlorella levels represented a greater decrease in the total cadmium concentration of the kidney and liver tissues, the amount of total metallothionein synthesis, the amount of metallothionein with binding to cadmium, and the concentration of free cadmium without binding to metallothionein. Consequently, the supplementation of 1% and 5% chlorella was effective in reducing the synthesis of metallothionein for cadmium uptake, but increased the rate of binding of cadmium to metallothionein.
Objectives This study was carried out to find out the anti-osteoarthritic effects of Mahwangbujaseshin- tang (Mahuangfuzixixintang ) on the monosodium iodoacetate (MIA)-induced osteoarthritis rats. Methods Osteoarthritis was induced by injecting MIA ($50{\mu}l$) into the knee joint of rats. Rats were divided into a 3 groups (n=7). The injection did not fit the normal group. A week later, after the injection of MIA, while control group took normal saline 2 ml, the extract of Mahwangbujaseshin-tang (Mahuangfuzixixintang ) (MBST) (200 mg/kg) was injected to treated group. After that, we examined hind paw weight bearing ability, functions of liver and kidney, serum TNF-$\alpha$, IL-$1{\beta}$, IL-6, $PGE_2$, $LTB_4$, TIMP-1, MMP-9 and hematology. Volume of cartilage was measured by micro CT arthrography. Injury of synovial tissue was measured by H & E, Safranin-O immunofluorescence. Results 1) DPPH and ABTS free radical scavenging activity of MBST was increased according to concentration of MBST and total phenolic contents were in high level. 2) In RAW 264.7 cells, ROS production was significantly decreased in MBST (at 10, $100{\mu}g/ml$) and NO was also decreased but meaningless in MBST (at $100{\mu}g/ml$). 3) In RAW 264.7 cells, IL-6 production was significantly decreased in MBST (at $100{\mu}g/ml$) and TNF-$\alpha$ and IL-$1{\beta}$ production were also decreased but meaningless in MBST (at $100{\mu}g/ml$). 4) In hind legs weight-bearing measurement, level of weight-bearing was increased. 5) Functions of liver and kidney were not affected. 6) TNF-$\alpha$, IL-$1{\beta}$, IL-6, $PGE_2$, $LTB_4$, MMP-9 and TIMP-1 production were significantly decreased. 7) In hematology, the levels of neutrophils, monocytes were significantly decreased and the levels of white blood cells, lymphocytes were also decreased but meaningless. 8) In micro CT-arthrography, cartilage volume was significantly increased. 9) Histopathologically, injury on cartilage and synovial membrane of MBST group was decreased. Conclusions Based on all results mentioned above, Mahwangbujaseshin-tang (Mahuangfuzixixintang) is believed to be meaningful for suppressing the progress of osteoarthritis. And it is related to inhibiting the activity of inflammatory cytokine and injury of volume in cartilage.
Park, Soo-Jin;Choi, Mi-Kyeong;Kim, Jin-Suk;Lim, Hak-Tea;Kang, Myung-Hwa
Journal of the Korean Society of Food Science and Nutrition
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제37권10호
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pp.1251-1257
/
2008
For the first 42 days, we made rats obese by feeding them potato starch instead of corn starch and after that we fed them transformed potato starch by 4 groups for 70 days. The 4 groups are GPS group, SPS group, EZ group and H40 groups and each were fed normal potato, small potato, enzyme treated potato, and acid treated potato starches, respectively. We determined body weight and feeding efficiency, lipid profiles in serum, lipid peroxidation in tissues and redox antioxidant system as GSH and GP-x in vivo. As a result, there was no difference in the increment of body weight in the groups of GPS, EZ and H40. Therefore EZ group showed lower body weight increment than other groups. While GPS group and SPS group did not show significant difference in blood glucose, cholesterol level, LDL-cholesterol and TC, and their measured values were lower than those of EZ and H40 groups. No significant difference was found in HDL-cholesterol level except for GPS group. Furthermore, when calculating atherogenic index (AI) by HDL-cholesterol and TC contents, H40 group showed higher measured value than other groups. When measuring the lipid peroxidation in serum, kidney and liver tissues, the serum lipid peroxidation in H40 group was higher than others. In the tissue of liver and kidney, EZ and H40 groups showed significantly lower contents than others. The content of GSH showed different tendency in each tissue, but the measured value of GP-x activity was lower in SPS group.
A novel compound, named YH-487, was synthesized by attaching the thiol and aminothiazole residue to $C_3$ and $C_7$ position of 7-aminocephalosporanic acid (7-ACA). The therapeutic efficacy on infected animals, pharmacokinetics in vivo and the effect on intestinal microflora of YH-487 were examined. The pharmacokinetics of YH-487 were similar to that of cefotaxime, a third generation ${\beta}-lactam$ antibiotics, in rat. Upon in vivo administration, YH-487 was predominantly delivered to kidney, and mostly excreted through kidney without making any metabolites. The therapeutic efficacy of YH-487 to animal infected with E. coli was three times and twenty times higher than that of cefotaxime and cefotiam, respectively, In vivo administration of YH-487 to Sprague-Dawley rats significantly decreased the population of intestinal gram negative species such as Enterobacteria and Barteroides. However, no significant changes were obseved in gram positive species such as Lactobacillus, Bifidobacteria and Staphylococcus. In addition, continuous administration of YH-487 did not increase the possibility to induce resistant strains in intestinal microflora.
Smilax china L. rhizome extract(SCE), called 'Tobokreung' in Korean traditional medicine was investigated the influence on heavy metal contents(particularly Pb, Cd, As, and Hg) in Sprague-Dawley rats for 3 weeks. The test groups were divided into 4 group, normal, control, and SCE feeding groups, SC1(13 mg/kg) and SC2(26 mg/kg), respectively. The three group except normal group, were fed heavy metal such as Pb, Cd, As, and Hg. Body weight gain and the weight of target organs (liver and kidney) were determined and had not shown significant differences. Pb, Cd, and As contents in the kidney of SCE feeding groups were tended to decrease after 3 weeks, and SC2 group showed remarkably decrease of them. In the liver, the 3 heavy metal contents except Cd of SC2 group, were decreased rather than that of control group. Pb contents in the serum and the hair of the SC2 group showed significantly decreasing. All the taken together, we investigated the effect of SCE on the 4 heavy metal contents in rats for 3 weeks, and found out that more dosage of SCE made lower heavy metal contents in vivo, for the first time.
Jo, Guk-Young;Choi, Hee-Jin;Son, Jun-Ho;Bae, Du-Kyung;Park, Mu-Hee;Woo, He-Sob;An, Bong-Jeon;Bae, Man-Jong;Choi, Cheong
Applied Biological Chemistry
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제43권3호
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pp.213-217
/
2000
In order to investigate the removal effect of cadmium by polyphenol compound extracted from persimmon leaves(Diospyros kaki folium), animal test was done. Two fractions such as F-1 and F-2 from persimmon leaves were compared with their safety and function. The food intake of group F-1 and F-2 considerably decreased within 1% level. Cadmium addition influenced to rat growth(a tested animal), but food efficiency ratio(FER) wasn't shown any considerable difference in F-1 and F-2, as compared to the control. Cadmium content of liver, kidney and femur considerably decreased within 1% level in F-1 and F-2, compared to the control, cadmium content of liver decreased 25% in F-1, 28% in F-2 3150 decreased 22% md 25% in kidney. In femur, also decreased 53% in F-1 and 59% in F-2 respectively. The test of cadmium content in feces indicate that the content considerably increased within 1% level in both group F-1 and F-2, as compared to the control(42% in F-1, 54% in F-2). As shown the above results, have seen the removal effect of cadmium by polyphenol compound.
Son Mu Song;Rho Sam Woong;Ko Eun Jung;Na Youn Gin;Bae Hyun Su;Hong Moo Chang;Shin Min Kyu
Journal of Physiology & Pathology in Korean Medicine
/
제17권4호
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pp.905-913
/
2003
Oriental medicine explains aging as the weakening of Kidney-ai, and Kidney-strengthening herbal medicines such as Yukmijihwang-tang have been studied for anti-aging effects. In Western Medicine, the hypothesis that reactive oxidant species(ROS) contribute to the aging process is generally accepted. It has been reported that Moutan Cortex Radicis extract (MCR) was the most effective constituent of Yukmijihwang-tang in decreasing ROS production in oxidative-stressed cells. The purpose of this study is to confirm the anti-oxidant effect of MCR on PC12 cells, the expression of Heme oxygenase (HO), Macrophage migradon inhibitory factor (MIF), Catechol-O-methyltransferase (COMT) using real time RT PCR. PC12 cells were treated without or with hydrogen peroxide in the presence or absence of MCR using MTS assay. Hydrogen peroxide decreased the viability of PC12 cells by 53% and MCR did not influence that of stressed PC 12 cells irrespective of dose or incubation period. However, MCR showed an inhibitory effect on production of ROS in stressed cells, both dose and incubation time dependently. In particular, 1 ㎎/㎖ of MCR for 24 h culture almost returned to normal level. In the quantiation of anti-aging related gene expression, MCR at 1 ㎎/㎖ increased the expression of HO by 370%, MIF by 180% and COMT by 280% through real time RT PCR. In conclusion, MCR treatment protected PC12 cells from hydrogen peroxide and decreased ROS production and enhanced anti-oxidative gene expression such as HO, COMT and MIF, which suggests that MCR is involved in controlling anti-aging of nerve cells through elimination of cytotoxic stimuli.
BACKGROUND/OBJECTIVES: Previous studies have reported that protein supplementation contributes to the attenuation of inflammation. Serious trauma such as burn injury usually results in the excessive release of inflammatory factors and organs dysfunction. However, a few reports continued to focus on the function of protein ingestion in regulating burn-induced inflammation and organ dysfunction. MATERIALS/METHODS: This study established the rat model of 30% total body surface area burn injury, and evaluated the function of blended protein (mixture of whey and soybean proteins). Blood routine examination, inflammatory factors, blood biochemistry, and immunohistochemical assays were employed to analyze the samples from different treatment groups. RESULTS: Our results indicated a decrease in the numbers of white blood cells, monocytes, and neutrophils in the burn injury group administered with the blended protein nutritional support (Burn+BP), as compared to the burn injury group administered normal saline supplementation (Burn+S). Expressions of the pro-inflammatory factors (tumor necrosis factor-α and interleukin-6 [IL-6]) and chemokines (macrophage chemoattractant protein-1, regulated upon activation normal T cell expressed and secreted factor, and C-C motif chemokine 11) were dramatically decreased, whereas anti-inflammatory factors (IL-4, IL-10, and IL-13) were significantly increased in the Burn+BP group. Kidney function related markers blood urea nitrogen and serum creatinine, and the liver function related markers alanine transaminase, aspartate aminotransferase, alkaline phosphatase, and lactate dehydrogenase were remarkably reduced, whereas albumin levels were elevated in the Burn+BP group as compared to levels obtained in the Burn+S group. Furthermore, inflammatory cells infiltration of the kidney and liver was also attenuated after burn injury administered with blended protein supplementation. CONCLUSIONS: In summary, nutritional support with blended proteins dramatically attenuates the burn-induced inflammatory reaction and protects organ functions. We believe this is a new insight into a potential therapeutic strategy for nutritional support of burn patients.
Kim, Hyeon-Yeong;Lee, Sung-Bae;Han, Jeong-Hee;Kim, Tae-Gyun;Lee, Jung-Suk;Kang, Min-Gu;Lee, Chae-Kwan
Journal of Korean Society of Occupational and Environmental Hygiene
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제18권3호
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pp.224-238
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2008
The aim of this study is to confirm the physicochemical property and hazard of thinner (012), which is a diluent of enamel paint used for floor coating for waterproofing and oil painting for the outer wall. The literatures of physicochemical property and hazard of thinner were surveyed and its physicochemical property were evaluated. And then, the inhalation toxicity of thinner affecting the central nervous system and reproductive organs in rats were examined by subchronic (6 h./day. 5 days/ week for 13 weeks) inhalation test. 1) According to the 13-week subchronic inhalation test, there were no significant changes in clinical test and body weight. However, a significant evidence of toxicity was observed in the hematological test and organ weight such as heart, kidney, liver and brain (p<0.01) in the 200 ppm and 1,000 ppm exposure groups in a dose response manner. In the histopathology analysis, there were no significant evidence of toxicity. Therefore, thinner was not classified as an organ targeted toxic agent. In case of Harmfulness, it could be classified as a chronic toxic agent 3($500 ppm/4hr, rat). 2) The reproductive toxicity such as extension of the period of estrous cycle, reduction of serum estradiol concentration and increase of frequency of the abnormal sperm was observed in the 1,000 ppm exposed animals. 3) The result of the physicochemical property of the test material showed that the specific gravity was 0.793, boiling point $155.8^{\circ}C$, steam pressure 2.1 kPa, ignition point $34.5^{\circ}C$, and spontaneous ignition point $280^{\circ}C$. The endothermic and exothermic values were 371.4 J/g and 159.1 J/g. respectively. The explosion limit was 214 mg/l. These data showed that thinner could be classified as an explosion agent level 1.2 and ignitive liquid agent 3 ($23-60^{\circ}C$) according to the notification No. 2008-1 of the Labor Ministry, "Classifying Standard of Chemical Materials."
Journal of Physiology & Pathology in Korean Medicine
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제17권1호
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pp.118-122
/
2003
Oxidative stress and its consequent lipid peroxidation exert harmful effects, which have been currently involved in the generation of carbon tetrachloride (CCl₄)-induced fibrosis(cirrhosis). In this study, it was investigated whether dried extract of 田螺(Concha Cipangopaludinae; CC) has liver functional improvement, antioxidative and antifibrotic effect in rats those were induced liver fibrosis by CCl₄ administration. The female Sprague-Dawley rats were divided into 3 groups(Normal, AC, AC-CC) and were observed in 6 weeks. Except for normal group, liver fibrosis(cirrhosis) in rats were developed by CCl₄ administration(0.8 ㎖/rat/week). And the rats were treated with prepared CC(p. o. 2 ㎖/day/rat). At the time of sacrifice, the liver, kidney and spleen were weighed and the ratio of organ weight/body weight was calculated. The MDA, hyp and biochemical parameters(AST, ALT, ALP, t-bili) were measured in sera and liver tissue of rats. The strong yellow color of urine was observed in all CCl₄-treated group compared with normal group, but jaundice didn't appear in CCl₄-treated group. The mortality of CCl₄-treated group is very low(<13%) during 6 weeks of observation time. The ratio of liver/body as well as the weight of liver in CCl₄-treated rats significantly increased compared with that in normal group(p<0.001). The level of clinical parameters in sera of all liver fibrosis(cirrhosis) developed rats were significantly higher than that of normal group(p<0.001-0.05). Especially the value of BUN, ALP, t-bilirubin in AC-CC group showed 20.9%, 19.6%, 47.9% lower than that in AC group. The content of hyp in CCl₄-treated rats was significantly higher than normal group(p<0.001~<0.05), and showed 12.2% lower value in the AC-CC group than AC group(p<0.05). The production of lipid peroxidation(MDA) in sera and liver tissue significantly increased under the fibrotic(cirrhotic) condition(p<0.001~<0.05). Especially the MDA value of AC-CC group in sera significantly 46.5% decreased compared with that of AC group(p<0.05), and the MDA value of AC-CC in liver tissue showed 21.4% lower than that of AC group. Concha Cipangopaludinae can be improved hepatic function, and maybe have effect of liver protection, antioxidation and antifibrosis.
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