• Title/Summary/Keyword: Rat kidney

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Effects of Fermented Milk Feeding on Function and Suppression of Aluminum Accumulation in Kidney of Rat (젖산균 발효유 섭취가 흰쥐의 신장내 알루미늄 축적억제와 신장기능에 미치는 영향)

  • 김중만;박성수;백승화;정동현;최용배;신용서;한성희;홍가형
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.28 no.1
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    • pp.233-239
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    • 1999
  • This study was performed to evaluate the effects of the supplementation of lactic acid bacterias (LAB; S. thermophilus, L. acidophilus) aluminum accumulation and function kidney in rats treated with 250 g/g aluminum sulfate for 4 weeks. Fifty male Sprague Dawley strains were divided into five groups according to the types of supplement. the control, S. thermophilus culture group(A), autoclaved S. thermophilus culture(B), L. acidophilus culture group(C) and autoclaved L. acidophilus(D). The weight gain was increased by supplementation of S. thermophilus culture(A), autoclaved S. thermophilus culture(B), L. acidophilus culture(C), autoclaved L. acidophilus culture(D), especially by supplementation of S. thermophilus cultured(A) as compared to control group. The amount of water intake was increased in control group as compared to the LAB supplemented group. The content of aluminum were decreased 19.57%, 31.25%, 37.10%, and 32.40% in kidney after supplementation of non autoclaved culture group (A,C), and autoclaved group(B,D) respectively, as compared to control group. Water balance, urine volume, and excretion of sodium and potassium decreased in LAB supplemented group and control group. Excretion of creatinine increased in control group and tendency to increased in LAB supplemented group. In conclusion, the effect of suppression of aluminum accumulation was more effective in sup plementation of S. thermophilus culture(A), and L. acidophilus culture(C) than autoclaved S. thermo philus culture(B), and L. acidophilus culture(D).

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Safety Evaluation of IGEs Separated and Refined from Colostrum (초유로부터 분리.정제된 IGFs의 안전성 평가에 관한 연구)

  • 조양희;이수원;정명섭;백승화;제갈승주;박강용
    • Food Science of Animal Resources
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    • v.23 no.2
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    • pp.137-144
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    • 2003
  • This study was carried out to investigate safety evaluation of IGEs separated and refined from bovine milk and commercial recombinant human IGFs. In order to evaluate toxicity of these samples, acute toxicity test and short term toxicity test were investigated with IGF-I separated and refined from colostrum and commercial recombinant human IGF-I from R&D systems company. for acute toxicity test, we selected recombinant human IGF-I from R&D systems company and establish one control group and three dose-level groups(0, 10, 20 and 50 $\mu\textrm{g}$ per rat). We have intravenously injected tail of rats with selected sample once. After 20 days, pathological cellular tissue analyses were investigated with liver, kidney and spleen of 12 rats in all test groups. However, Morbid tissue and abnormal statistical results were not discovered in all cellular tissues. For short term toxicity test, we selected IGF-I separated and refined from colostrum and establish one control group and three dose-level groups(0, 5, 10 and 15 $\mu\textrm{g}$/day per rat). Rats were orally injected with selected sample once a day during two weeks. After short term toxicity test period, Pathological cellular tissue analyses were investigate with liver, kidney and spleen of 12 rats in all test groups. However, Morbid tissue and abnormal statistical results were not discovered in all cellular tissues. These results suggest that IGF-I treated groups show no significant toxicological findings with changes of body weight, food consumption, water consumption, and pathological findings compared with control groups.

The effects of traditional acupuncture techniques and green laser acupuncture on the blood pressure in hypertensive rat induced by two kidney one clip (신문(神門), 태백혈(太白穴)에 시행된 직자법(直刺法), 수기사법(手技瀉法) 및 침습형 레이저 시술이 고혈압 백서에 미치는 영향)

  • Na, Chang-Su;Youn, Dae-Hwan;Choi, Chan-Hun;Lee, Suk-Hee;Oh, Kwang-Hwan;Jeong, Sung-Ho
    • Korean Journal of Acupuncture
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    • v.25 no.2
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    • pp.199-210
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    • 2008
  • Objectives : This study was performed to investigate the effect of invasive laser acupuncture therapy with green light (LAT-G) at HT7(Sinmun), SP3(Taebaek) on the blood pressure in hypertensive rat induced by two kidney one clip. Methods : The experiments were performed on Sprague Dawley rats. 2K1C hypertension model was prepared by constricting the left renal artery with a sliver clip. Animals were divided into four groups, which were simple acupuncture treatment group with straight needle insertion on the square(AT-SS), acupuncture treatment group with reducing manipulation in the opposite channel direction(AT-RD), laser acupuncture treatment group with green light 532 nm, 10mW power in the opposite channel direction(LAT-G10) and laser acupuncture treatment group with green light 532 nm, 20mW power in the opposite channel direction(LAT-G20). The treatments were performed once per two days for 10 days. Results : Body weight was increased significantly in LAT-G20 group compared with AT-RD group. The blood pressure was significantly decreased in LAT-G20 and LAT-G10 groups compared with AT-SS group. Conclusions : These results suggest that green laser acupuncture therapy at SP3 ${\cdot}$ HT7 is more effective than straight needle insertion on the square for controlling hypertension. It is possible that invasive green laser acupuncture therapy (532 nm) can be used as a reducing method of the traditional acupuncture techniques.

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Effects of vitamin E and selenium on the ovariectomized rat (Vitamin E와 selenium이 난소가 제거된 흰쥐에 미치는 영향)

  • Chon, Seung-Ki
    • Korean Journal of Veterinary Service
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    • v.33 no.4
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    • pp.411-415
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    • 2010
  • The present study was devised to determine the effects of body weight, organ weight, hematological values and biochemical parameters by vitamin E and selenium (Selevit) in the ovariectomized (OVX) rats. The animals were divided into 4 groups. Intact group (n=10) received no treatment and operation. Sham group (n=10) received only sham operation and no treatment. OVX group received operation and no treatment. OVX+Selevit received operation and Selevit. The body weights of the all group increased, and that of OVX+Selevit group was the lowest rates. There were significant differences (P<0.01, P<0.001) of body weights between OVX+Selevit group and all other groups. Also, organ weights such as heart, liver, spleen and kidney were measured. The heart and liver weight were significantly lower (P<0.01, P<0.001) in the OVX+Selevit group than in the Intact and Sham group. Also, the kidney weight was significantly lower (P<0.05, P<0.01) in the OVX+Selevit group than in the all other group. On the other hand, there was no significantly difference in the organ weight of spleen between the OVX+Selevit group and the other groups. The number of WBC was significantly higher (P<0.05) in the OVX+Selevit group than in the all other groups. The hematological values of RBC, MCV, MCH and MCHC were no significant differences in any groups. The biochemical parameters of serum total protein and alkaline phosphatase increased significantly in the OVX+Selevit group as compared to that in the OVX group. But, there were no significant differences in AST and ALT in any groups. We conclude that vitamin E and selenium were significantly decreased the body weights in the ovariectomized rats. Our findings suggest that vitamin E and selenium may influence the process of lipid packaging and absorption in the ovariectomized rats.

Effects of Chunglijagam-tang Aqueous Extracts on Streptozotocin-induced Rat Diabetes and Related Complications (청리자감탕이 Streptozotocin으로 유발(誘發)된 흰쥐의 당뇨병(糖尿病) 및 당뇨병합병증(糖尿病合倂症)에 미치는 영향)

  • Park, Yoon-Sik;Yoon, Gyeong-Min;Im, Eun-Yeong;Shin, Hyeon-Chul;Kang, Seok-Bong
    • The Journal of Internal Korean Medicine
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    • v.31 no.3
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    • pp.631-649
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    • 2010
  • Objective : The object of this study was to observe the effects of aqueous extracts of Chunglijagam-tang(CLJGT), which has traditionally been used in Korean medicine for treating various diseases, on streptozotocin(STZ)-induced rat diabetes and related complications: diabetic nephropathy, hepatopathy and hyperlipemia. Methods : CLJGT extracts were orally administered once a day for 28 days at a dosage 50, 100 and 200mg/kg from 21 days after STZ treatment, and the changes on body weights, blood glucose levels, kidney and liver weights, serum BUN(blood urea nitrogen), creatinine, AST(aspartate transaminase), ALT(alanine aminotransferase), HDL(high-density lipoprotein), LDL (low-density lipoprotein), total cholesterol and triglyceride levels were observed with pancreatic malondialdehyde(MDA) and glutathione(GSH) contents. The results were compared with silymarin 100mg/kg. Results : Significant decrease of blood glucose levels, kidney and liver weights, serum BUN, creatinine, AST, ALT, LDL, total cholesterol, triglyceride levels, pancreatic malondialdehyde contents and significant increase of body weights, serum HDL levels, pancreatic glutathione contents were detected in CLJGT extracts 50, 100 and 200mg/kg administered groups as compared to the STZ control group. Conclusion : CLJGT extracts showed favorable effects on the STZ-induced diabetes and related complications mediated by their antioxidant effects as similar to silymarin. Therefore, it is expected that DBEH has potential for use in the management of diabetes and various diabetic complications.

Nephroprotective Effects of Opi-san Aqueous Extracts on Cisplatin-induced Rat Acute Renal Failure (오피산(五皮散)이 Cisplatin으로 유발(誘發)된 흰쥐의 급성신부전(急性腎不全)에 미치는 영향(影響))

  • Kim, Tae-U;Yoon, Gyeong-Min;Im, Eun-Yeong;Shin, Hyeon-Chul;Kang, Seok-Bong
    • The Journal of Internal Korean Medicine
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    • v.31 no.3
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    • pp.600-611
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    • 2010
  • Purpose : This study was to observe the nephroprotective effects of the traditional prescription, Opi-san(OPS). OPS has been generally used for treating various edematous renal diseases, including acute renal failure. Methods : Three different dosages of OPS extracts were administered once a day for 28 days (5 mg/kg, single intraperitoneally administered). On the 23rd day after OPS extract treatment, cisplatin was treated. All the rats (6 groups of 8 rats each) were checked as follows. Changes of body weight, kidney weight, serum BUN and creatinine levels were observed, as well as changes to the kidney MDA and GSH contents. The results were compared with captopril 100 mg/kg, of which the effects on cisplatin-induced acute renal failures were already confirmed. Results : Cisplatin-induced ARF were induced by oxidative stress and related lipid peroxidation in the present study. However, these ARF and inhibition of antioxidant effects induced by cisplatin were dose-dependently reduced by treatment of OPS extracts except in the 100 mg/kg treated group. The effects of OPS extracts at 500 mg/kg were similar to those of 100 mg/kg of captopril. Conclusion : This study suggests that OPS extracts 500 mg/kg showed favorable effects on the cisplatin-induced rat's ARF as similar to 100 mg/kg of captopril.

Effect of Dietary Fibers in Rice and Barley on Lipid and Cadmium Metabolism in the Rat (쌀과 보리의 식이 섬유가 흰쥐의 지방 및 Cadmium 대사에 미치는 영향)

  • 김미경
    • Journal of Nutrition and Health
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    • v.30 no.3
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    • pp.252-265
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    • 1997
  • This study was performed to investigate effect of dietary fibers in rice and barley on glucose, lipid and cadmium (Cd) metabolism in the rat. Fifty-six male Spague-Dawley rats weighing 244.6$\pm$2.7g were blocked into eight groups according to body weight and raised for four weeks with diets containing 0 or 0.04%(w/w) CdCl2 and four different carbohydrate sources, starch, rice flour, barley flour and mixture of rice and barley flour(7 : 3, w/w). Total dietary fibers and $\beta$-glucan contents of barley were about three times higher than those of rice (10.75% vs. 3.94%, 3.11% vs. 1.06%, respectively). Food intake, weight gain, food efficiency ratio, liver and kidney weights were lower in Cd exposed groups, and barley group among Cd exposed animals showed highest weight gain, food efficiency ratio and organ weights. Fasting serum glucose levels were not significantly different among groups, Serum cholesterol level was lowest in Cd exposed barley group. Serum HDL-cholesterol level was higher in none-Cd exposed starch and barley groups, and HDL-cholesterol : total cholesterol ratios were higher in none-Cd rice and mixed flour groups than other groups. Liver total lipid and triglyceride levels were lowest in barley groups regardless of Cd administration. Fecal total lipid, cholesterol and triglyceride excretions were high in barley and mixed flour groups. Liver Cd concentrations were low in Cd exposed barley and mixed flour groups. In Cd exposed barley group, fecal weight and Cd excretion were highest and Cd retention ratio was lowest among groups. Small intestine metallothionein(MT) concentration was highest in Cd exposed rice group, and kidney MT concentration was highest in Cd exposed barley group. In conclusion, cereals showed different effects on lipid and Cd metabolism that might be mediated by dietary fibers in cereals. Especially $\beta$-glucan-rich barley group showed greatest lipid and Cd lowering effects by increasing fecal lipids and Cd excretions.

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Synergic Effects of Bitter Melon and ${\beta}$-Glucan Composition on STZ-Induced Rat Diabetes and Its Complications

  • Kim, Joo-Wan;Cho, Hyung-Rae;Moon, Seung-Bae;Kim, Ki-Young;Ku, Sae-Kwang
    • Journal of Microbiology and Biotechnology
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    • v.22 no.1
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    • pp.147-155
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    • 2012
  • ${\beta}$-Glucan purified from oats (OG) and bitter melon, Momordica charantia Linn (MC), water extracts have shown favorable effects on diabetes and its complications. We investigated to find out the optimal composition showing hypoglycemic and antidiabetic complication effects in variable compositions (OG:MC = 1:1, 1:2, 1:4, 1:6, 1:8, 1:10, 2:1, 4:1, 6:1, 8:1, 10:1). Extracts were administered orally once a day for 28 days following 7 days post streptozotocin (STZ) dosing. Five rats per group (total 15 groups; Intact, STZ, OG, MC, and the variable composition groups) were selected according to the blood glucose and body weight at 6 days after STZ dosing. After 28 days of extracts dosing, the changes on the body weight, liver and kidney weight, blood glucose, blood urea nitrogen (BUN), creatinine, aspartate aminotransferase (AST) and alanine aminotransferase (ALT), low-density lipoprotein (LDL), and total-cholesterol levels were observed. As the result of STZ-induced diabetes, decreases of body weight, increases of the liver and kidney weights, blood glucose, BUN, creatinine, AST, ALT, LDL, and total-cholesterol levels in STZ control were detected compared with intact control. However, these changes of hyperglycemia, diabetic nephropathy, hepatopathy, and hyperlipemia were dramatically decreased in the OG and MC single-dosing group, and all composition groups. In addition, there were more favorable effects in all composition groups compared with the OG and MC single-dosing groups. Among variable compositions, the OG:MC 1:2 mixed group showed the most synergic effects in this study.

Effects of estrogen on the ovariectomized rat (에스트로겐이 난소가 제거된 흰쥐에 미치는 영향)

  • Park, Young-Jae;Chon, Seung-Ki
    • Korean Journal of Veterinary Service
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    • v.33 no.3
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    • pp.303-307
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    • 2010
  • The aim of this study was to determine the effects of body weight, organ weight, hematological values and biochemical parameters by estrogen on the ovariectomized (OVX) rats. The animals were divided into 4 groups. Intact group (n=10) received no treatment and operation. Sham group (n=10) received only sham operation and no treatment. OVX group (n=10) received operation and no treatment. OVX+E2(n=10) received operation and estrogen. The body weight of each group increased, but that of OVX+E2 group decreased. There were very significant differences (P<0.001) of body weights between OVX+E2 group and the other groups. Also, the wight of important organs such as heart, liver, spleen and kidney was measured. The heart weight was significantly lower(P<0.05) in the OVX+E2 group than the Intact group. The liver weight of the OVX+E2 group was significantly different in comparison with those of the other groups. On the other hand, there were no significantly differences in the organ weight of spleen and kidney between the OVX+E2 group and the other remaining groups. The hematological values of WBC, RBC, MeV, MCH and MCHC were not significantly different among the groups. The serum total protein and albumin decreased significantly in the OVX+E2 group as compared to those in the intact group. But, there were no significant differences in Ca, IP and Mg among the groups. We conclude that estrogen was significantly decreased the body weight in the ovariectomized rats. Our findings suggest that estrogen may influence the process of lipid packaging and absorption in the ovariectomized rats.

Effects of Hwanggeum-tang Aqueous Extracts on Streptozotocin-induced Rat's Diabetes and Related Complications (황금탕이 Streptozotocin으로 유발된 당뇨병 백서의 혈당 및 당뇨병합병증에 미치는 영향)

  • Choi, Byeong-Heon;Yoon, Gyeong-Min;Kang, Seok-Bong
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.25 no.4
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    • pp.683-690
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    • 2011
  • The object of this study was to observe the effects of Hwanggeum-tang (HGT) aqueous extracts on Streptozotocin-induced rat's diabetes and related complications. Three different dosages of HGT extracts were orally administered oncea day for 28 days from 3 weeks after Streptozotocin treatment (60 mg/kg, single intraperitoneally administered). All the rats were checked at 3 weeks after Streptozotocin treatment as follows. Changes on the body weight, blood glucose level, kidney weight, serum BUN and creatinine level, liver weight, serum AST and ALT level, serum LDL, HDL, triglyceride and total cholesterol level were observed with changes on the pancreatic MDA content and GSH content. The results were compared with a potent antioxidant silymarin 100 mg/kg in which the effects on Streptozotocin-induced diabetes and related complications were already confirmed. As results of Streptozotocin-injected diabetes and related complications, dramatical decreases on the body weight, increase of the kidney and liver weight, increase of serum BUN, creatinine, AST, ALT, LDL, triglyceride, total cholesterol level and decreases of serum HDL level were detected in streptozotocin control as compared with intact control. In addition, marked increases of pancreatic MDA content and decreases of GSH content were also detected in streptozotocin control as compared with intact control. However, these diabetes and related complications, and inhibition of antioxidant effects induced by Streptozotocin were inhibited by 28 days continuous treatment of 50, 100 and 200 mg/kg of HGT extracts in the present study. HGT have favorable effects on the diabetes and various diabetic complications. Therefore, more detail mechanism studies should be conducedin future with the efficacy tests of individual herbal composition of HGT and the screening of the biological active compounds in herbs.