This study focused on relationships between Pb and Cd concentrations and the difference of success reproductive progress in urban (Seoul) and industrial complex (Ansan) areas. Results of the Pb analysis for the feral pigeons from Seoul (egg contents:1.64 $\mu\textrm{g}$ wet $g^{-1}$, adults in bones: 29.5 $\mu\textrm{g}$ wet $g^{-1}$ and the Ansan industrial complex (egg contents: 1.13 $\mu\textrm{g}$ wet $g^{-1}$, adults in bones: 10.5 $\mu\textrm{g}$ wet g-1) showed that the Pb level of eggs and adults is significantly different between the two colonies (p<0.05). Cd concentrations in liver and kidneys of adult pigeons were also significantly different between Seoul(liver: 0.24 ${\mu}g$ wet $g^{-1}$, kidney: 1.05 $\mu\textrm{g}$ wet $g^{-1}$ and the Ansan (liver: 0.14 $\mu\textrm{g}$ wet $g^{-1}$, kidney: 0.43 $\mu\textrm{g}$ wet $g^{-1}$ colonies (P<0.05). Clutch size of Feral Pigeons living in Seoul was similar between the two colonies, 1.9$\pm$0.3 in Seoul and 2.0$\pm$0.0 in Ansan. The length, breadth, and thickness of eggs were not significantly different between the two colonies (p>0.05). Incubation period in Seoul (17.8 days) did not differ from the Ansan (17.4 days). No difference in growth rate (body weight, wing length, and tarsus length) was found between the two test groups (p>0.05). In Seoul, 65.2% were hatching, and 42.1% fledging. The Proportion of hatching and fledging in the Ansan was 60.7% and 45.0%, respectively. The significant differences between the two colonies for reproductive sucess were not found (p>0.05). With regard to the reproductive effects to the heavy metals, the Pb and Cd concentrations feund in the two colonies were not as high as those considered in results of toxic effects in other species.
Lead toxicity was evaluated in forty-five cats on a balanced diet, treated with 0(control), 10, 100(low), 1, 000, 2, 000 and 4, 000(high)ppm of lead acetate orally on a body weight basis. The objectives were to describe the gross and histopathologic changes and to demonstrate what tissue lead concentrations correlate with the known dosages of lead. In subclinical lead toxicity, greater than 80% of the absorbed lead was deposited in the bone, whereas in more acute lead toxicity, 42% of absorbed lead was deposited in the bone and 36% and 20% of absorbed lead was deposited in the kidneys and in the liver, respectively. No gross lesions were found in the nervous system. Yellow-brown colored livers appear to be associated with lead toxicity. Neuronal necrosis in the cerebrum was the most predominant histopathologic finding. Astrocytic proliferation in the cerebral gray matter was observed in 1 high dose cat. Gliosis was noted in the cerebral cortex of 6 high dose cats. Two high dose cats had demyelination in the deepest layer of the cortical gray matter of the cerebrum. Extravasation of red cells and cavitation around the vessels were found in the cerebrum of 1 high dose cat. Six high dose cats had degeneration of Purkinje cells in the cerebellum. The microscopic findings in the peripheral nerves were ambiguous. In more acute toxicity, the cats had lead inclusions in the epithelial cells of proximal tubules of the kidneys of 7 cats and hepatocytes of the liver of S cats. These inclusions could be seen wlth H&E, but were more prominent with orcein staining. Two high dose cats had granulomas and connective tissue hyperplasia between tubules of the kidneys. Periportal hepatocyte vacuolization was observed in the liver of 22 cats. Vacuolization of seminiferous tubules and a reduced number of spermatogonia(indicative of reduced spermatogenesis) were found in the testis of 5 treated cats. Cystic ovaries were observed in 3 high dose cats and poor development of oogonia was found in 2 cats. The diagnosis of lead toxicity in cats can be suspected on the basis of the histopathologic lesions described, and can be of value in contributing to a diagnosis. A reliable diagnosis of lead poisoning can be helped utilizing tissue lead analysis(post molten)
Journal of the Korean Society of Food Science and Nutrition
/
v.42
no.6
/
pp.869-876
/
2013
To develop functional products based on black garlic, a black garlic extract (BG) of 7 brix, a gaeddongssuk extract (GS) of 0.7 brix and two types of mixtures (MBS-I, black garlic 7 brix : gaeddongssuk 0.7 brix; MBS-II, black garlic 14 brix : gaeddongssuk 1.4 brix, 93:7, v/v) were supplemented to rats training on a treadmill for 4 weeks. Body weight from the training did not decrease during the experimental period. Serum albumin content significantly increased in the groups fed an experimental diet compared to the control. The BUN content significantly decreased in BG and MBS-II groups compared to the control. AST and ALP activities significantly decreased in the groups fed an experimental diet compared to the control. Serum triglyceride and total cholesterol levels in MBS-I and MBS-II groups significantly decreased compared to the control. Lipid levels in the serum and liver tissue were not significantly different between the MBS-I and MBS-II groups. The lipid peroxide content in the serum and liver tissue was significantly reduced in the groups fed all extracts compared to the control; the serum and liver lipid contents was lowest in the MBS-I and MBS-II groups, respectively. Hepatic catalase activity in the GS and MBS groups increased by 1.8~2.3 times compared to the control. SOD and GSH-px activities significantly increased from treatment with the extracts by 1.3~1.5 times and 1.2~1.7 times, respectively. These results indicate that a mixture of BG and GS extracts has higher biological activity than a single supplementation of BG or GS extract. Therefore, the addition of gaeddongssuk to black garlic (MBS-I and MBS-II) is effective as a defense material against oxidative stress. MBS-I may be especially effective for its biological activities.
Park, Jung-Yoon;Park, Mi-Na;Choi, You-Young;Yun, Sung-Seob;Chun, Ho-Nam;Lee, Yeon-Sook
Journal of the Korean Society of Food Science and Nutrition
/
v.37
no.4
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pp.428-436
/
2008
This study was carried out to compare the effects of whey protein concentrate, its hydrolysates and macropeptide fractions obtained from papain treatment of whey protein on lipid levels and appetite-related hormones in obesity model rats induced by high fat diet. Four week-old male Sprague-Dawley rats were fed high fat (18% w/w) and low protein (10% w/w) diet for 4 weeks and then divided into four groups (n=8/group). Rats were fed high fat diets containing various nitrogen sources; 10% whey protein concentrate (10WPC), 25% whey protein concentrate (25WPC), 25% whey protein hydrolysates (25WH), and 25% whey macropeptide fractions (25WP, MW$\geq$10,000), respectively for 6 weeks. There were no significant differences in body weight gain and food intake among groups. A significant decrease of total lipid, triglyceride in serum was observed in 25WH and 25WP groups. Total lipid and triglyceride contents of the liver were significantly decreased in 25WPC, 25WH and 25WP groups compared with 10WPC group. However, in the liver, there were no differences in the contents of total lipid and triglyceride among 25WPC, 25WH and 25WP groups. The daily amounts of feces were significantly increased in 25WH and 25WP groups and the excretion of total lipid and triglyceride were significantly increased in 25WH group. Serum glucose and insulin concentration were significantly decreased in 25WH group. The concentration of serum ghrelin was significantly decreased in the 25WPC, 25WH and 25WP groups compared with 10WPC group. However, there was no significant difference in the concentration of serum leptin among groups. These results suggest that whey protein hydrolysates and macropeptide fractions may show beneficial effects on the lipid profile in serum and liver, appetite regulation and insulin resistance in obesity model rats induced by high fat diet.
Journal of the Korean Society of Food Science and Nutrition
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v.32
no.7
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pp.1102-1107
/
2003
To study the effects of substances in paeonia seeds (Paeonia lactiflora Pall.) on lipid metabolism, crude methanol extract and secondary ether-soluble fraction out of defatted methanol extract and trans-resveratrol were prepared from the seeds and added to 0.5% (w/w) cholesterol diets for rats. Male Sprague-Dawley rats weighing 120$\pm$11 g were divided into six experimental groups: control group with no extra supplement, 0.1% (MP1) and 0.2% methanol extract (MP2) supplemented groups, 0.05% (EP1) and 0.1% ether-soluble fraction (EP2) supplemented groups and 0.02% resveratrol supplemented group. Experimental diets were fed ad libitum to the rats for 3 weeks. Body weight gains and food efficiencies were not different among the six experimental groups. Relative liver weights were lower in EP2 group compared to those in control group, but serum GOT and GPT levels of paeonia seed groups including trans-resveratrol group were not different from those of the control group. Serum total cholesterol levels reduced in EP2 and resveratrol groups but HDL-/total cholesterol ratios significantly increased in the four paeonia groups except EP1 group compared with the control group and serum triglyceride level lowered only in EP2 group than that of the control. However, liver cholesterol levels lowered in the five paeonia groups but triglyceride level lowered in MP2, EP1, EP2 groups than that of the control group. Fecal cholesterol excretion significantly increased in MP2, EP1, and EP2 groups than that of the control group, but bile acid excretions were not changed except that a reduction in EP2 group. These results suggest that paeonia seeds contain substances improving serum lipid status mostly via HDL pathway and resveratrol as monomer is one of the effective components but others including resveratrol oligmer are involved in the lipid improving effect.
Journal of the Korean Society of Food Science and Nutrition
/
v.44
no.10
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pp.1431-1438
/
2015
This study was conducted to determine the effects of fermented water extracts from Ligularia fischeri (LAF) on reduction of hepatotoxicity induced by ethanol in rats. Ethanol-treated Sprague-Dawley rats were divided into the following eight groups: ethanol-treated group (control), ethanol and ursodeoxycholic acid-treated group (positive control), ethanol and non-fermented water extracts from Ligularia fischeri (LA)-treated groups [100, 200, and 400 mg/kg BW (body weight)], ethanol and LAF-treated groups (100, 200, and 400 mg/kg BW). ${\gamma}$-Glutamyl transferase activities of the ethanol+LA-treated (100, 200, and 400 mg/kg BW) groups and ethanol+LAF-treated (400 mg/kg BW) group decreased significantly compared to those in the control group (P<0.05). Aspartate aminotransferase activities of the ethanol+LAF-treated (100, 200, and 400 mg/kg BW) groups and ethanol+LA-treated (200 and 400 mg/kg BW) groups decreased significantly compared to those in the control group (P<0.05). Alanine aminotransferase and lactate dehydrogenase activities of all groups significantly decreased compared to those in the control group (P<0.05). The total cholesterol, low density lipoprotein-cholesterol, and triglyceride levels of all groups tended to decrease compared to those in the control group, but the differences were not significant. Superoxide dismutase activity of liver tissues was enhanced in the ethanol+LAF-treated (400 mg/kg BW) group (P<0.05). The contents of malondialdehyde in liver tissues decreased in the ethanol+LAF-treated groups (P<0.05). All treated groups showed well preserved lobular architectures with no evidence of steatosis or liver damage compared to the control group. As the results of this study, LAF may improve the plasma lipid profile and alleviate hepatic damage by ethanol.
Objectives : JianTeng-Yuan(交藤圓) is said to be a prescription for preservation of health in ${\ulcorner}$HuaTuo ZhongZangJing(華陀 中藏經)${\lrcorner}$. It is known to have the effect of Bu-Shen(補腎: strengthening kidney) and Yi-Shou(益壽: prolonging the span of one's life). This study investigates whether JTY is effective on inhibition of oxidation stress. Methods : Sprague-Dawley Rats(12-week-old, weight $300{\pm}20g$) were divided into 3 groups. Normal group(n=8) was injected PBS(1ml/body, s.c) at the back neck's skin. Control group(n=8) was injected D-galactose(50mg/kg, 1ml PBS/body, s.c) to induce pathological animals. JTY group was injected the same treatment for the Control group, and fed containing JTY(10%). The whole groups were treated 1 time per day for 6 weeks. After rats were sacrificed and anti-oxidant enzyme(SOD, CAT, G-px) activity, GSH quantity of RBC and tissue(heart, liver and kidney), plasma Vit-C quantity were examined. Besides, the MDA levels of liver and kidney, lipofuscin of heart and endurance of erythrocyte membrane were measured. Results : In the JTY group, RBC's SOD activity decline was halted by 21% of the normal level, compared to the control group ; G-px activity(unit/g of Hb) increased significantly, compared to the normal group ; and the level of Vit-C in plasma increased by 16%. Heart's SOD activity was kept at the same level as that of the normal group ; and CAT activity decline was halted by 26%. Kidney's CAT and G-px activities were kept at the same level as that shown in the normal group, implying the existence of halting effect. Liver also showed a slight halting effect against the decline of anti-oxidant ability, but the effect was not significant(a=0.05). A comparison between the levels of peroxide in SD rats showed that the level of TBARS in plasma increased significantly in the control group and that it was normal in the JTY group. The livers in the JTY group, compared to those in the control group, showed 36% halting effect of the normal level while their kidney's indicated the level significantly lower than the normal level. Heart's lipofuscin increased significantly in the control group, but was alike in both the JTY and the normal groups. Endurance of erythrocyte membrane(%) decreased significantly in the control group while it was kept at the similar level in both the JTY and the normal groups, indicating the halting effect. Conclusions : This study suggests that JTY is effective to defend oxidation stress caused by D-galactose in the animals. It showed that the anti-oxidant ability was maintained and strengthened. On the other hand, it reduced the level of peroxide in animals. In sum, JTY appeared to have the equilibrium normal physiological function in SD rat.
Shin, Jeong Yeon;Kang, Jae Ran;Shin, Jung Hye;Seo, Weon Taek;Byun, Hee Uk;Choi, Jin Sang;Kang, Min Jung
Journal of the Korean Society of Food Science and Nutrition
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v.46
no.7
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pp.779-789
/
2017
The effects of orally administered Seomaeyakssuk (Artemisia argyi H.) vinegar on lipid metabolism in Sprague-Dawley rats fed a high-fat and high-cholesterol (HFC) diet were analyzed. The experimental animals were divided into five groups: a normal diet group (normal, N), HFC diet group (control, C), HFC diet with lovastatin at 20 mg/kg body weight (B.W.) group (positive control, PC), HFC diet with malt vinegar group (TM), and HFC diet with Seomaeyaksuk vinegar group (TS) (2 mL/kg B.W.). After 4 weeks of feeding rats the experimental diet, contents of serum total lipids and total cholesterol levels of TM and TS groups were significantly lower than those of the PC group. Triglyceride contents of the TM and TS groups were not significantly different from those of the PC group but significantly lower than those of the C group. Content of serum high density lipoprotein-cholesterol was significantly lower than that of the N group but higher than that of the C group. Low density lipoprotein-cholesterol content of serum was 190.68 mg/dL in the TS group, which was the lowest except for the N group. Aspartate transaminase and albumin transaminase activities as a measurement of liver damage index were not significantly different between the TM, TS, and C groups. Serum thiobarbituric acid reactive substance content of the TS group was reduced to a similar level as the N group but was lower than that of the C group in the liver and significantly higher than that of the N group. Antioxidant activity of the TS group was 55.69% in serum, which was a similar to that of the N group, and was 52.39% in the liver, which was not significantly different than that of the C group. From these results, we conclude that Seomaeyakssuk vinegar improves serum lipid content as a result of the complex action of vinegar, an active ingredient of Seomaeyakssuk and a product of the fermentation process.
A 1-year-old, female English cocker spaniel (ECS) dog was presented with 3-month history of vomiting and retaking of the vomitus, and chronic weight loss. The client had noticed mild abdominal distension 10 days before. The dog was diagnosed as chronic hepatitis with hepatic cirrhosis based on complete blood count (CBC), serum chemistry profiles, radiography, ascites assessment, bile acid evaluation, and liver biopsy through exploratory laparotomy and necropsy. CBC and serum chemistry profiles revealed mild anemia, slightly elevated hepatic enzymes (ALT and AST), increased creatinine kinase (CK), hyperammonemia, and hypoproteinemia with hypoalbuminemia. Ascites was transudate according to analysis of components. Bile acid assessment (fasting; $174.4{\mu}mol/L$ and postprandial; $198.4{\mu}mol/L$) showed strongly suspected hepatic insufficiency. On radiological findings, ascites was evident. Atrophied liver (especially left side lobes) and distended mesenteric vasculatures were observed by exploratory laparotomy. Histopathological examination of marginal lesion of left lateral lobe of liver by biopsy revealed the necrosis of hepatic cells, dilation of sinusoids, infiltration of neutrophils in sinusoids, and vacuolation of hepatic cytoplasm. The patient had been managed with careful low protein diet and specific supportive therapy (ursodeoxycholic acid, prednisolone, vitamine E, and interferon). Vomiting and ascites disappeared with medical management. The dog was monitored periodically by CBC, serum chemistry and radiographic examination. The dog survived more 18 months with medical therapy. After spontaneous death, necropsy and histopathologic examination were performed.
The purpose of this study was to examine the effect of Allium hookeri (AH) root on hepatic antioxidative enzyme contents in streptozotocin (STZ)-induced rats. Diabetes mellitus was induced in male Sprague-Dawley rats through injection of STZ dissolved in citrate buffer into tail veins at a dose of 45 mg/kg body weight. Sprague-Dawley rats were fed an AIN-93 recommended diet, and the experimental groups were fed a modified diet containing 5% and 10% of AH root powder for 4 weeks. The experimental groups were divided into four groups: a normal control (N-control), STZ-control, STZ-AH 5%, and STZ-AH 10% supplemented groups. The STZ-AH 5% group showed a significant increase in liver glycogen compared to the STZ-control group. Muscle glycogen and liver protein contents significantly increased in the AH-supplemented groups compared to the STZ-control group. The liver malondialdehyde content of the AH-supplemented group was significantly lower than that of the STZ-control group. Xanthine oxidase content was significantly reduced in all experimental groups. Glutathione-S-transferase content was significantly elevated in the AH-treated groups compared to the STZ-control group. Superoxide dismutase content was not significantly different among the experimental groups. Catalase content was significantly higher in the STZ-AH 10% group compared to the STZ-control group. These results show that supplementation with AH root may be useful for diabetic therapy and damage from oxidative stress.
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