• 제목/요약/키워드: pathology of rat

검색결과 629건 처리시간 0.022초

Myocardial degeneration in Russian rat snake (Elaphe schrenckii)

  • Tiwari, Shraddha;Aufa, Sulhi;Park, Hyung-Hun;Cho, Ho-Seong;Park, Byung-Yong;Oh, Yeonsu
    • 한국동물위생학회지
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    • 제41권3호
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    • pp.217-220
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    • 2018
  • A female Russian rat snake, Elaphe schrenckii, was presented for loss of movement. Physical examination showed the swelling in the area of heart. Radiographic examination revealed cardiomegaly, pericardial effusion, and a soft opacity in the area of swelling. Although pericardiocentesis to remove fluid out from the heart as well as vigorous treatments were given to the Russian rat snake, it died during treatments. Postmortem examination confirmed pericardial effusion of pale yellow, translucent fluid with mild dilation of the right atrium and ventricle. Formalin -fixed paraffin embedded tissue sections were stained with routine H&E and the classical von Kossa's method for histopathological demonstration. Histopathological examination revealed multifocal calcification in myocardium and consists of the displacement of muscular fiber by limy deposits. Congestive heart failure was suspicious for the snake when it was alive. In wild reptiles, muscle degeneration has been reported with nutrition disorders but the present case is the first report of myocardial degeneration in a Russian rat snake and contributes to the rare reports of cardiac disease in snakes.

가미사물탕(加味四物湯)이 고혈압 병태 모델과 활성산소에 미치는 영향 (Effect of Kamisamul-tang on Hypertension and Free Radical)

  • 송낙근;구영선;김동희
    • 동의생리병리학회지
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    • 제20권6호
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    • pp.1485-1496
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    • 2006
  • Various kinds of related parameters on hypertension such as anti-oxygen effect, ACE, weight of body, hwart and kidney, blood pressure, heartbeat rates, contents of aldosterone, catecholamine, change rates, of plasma constituents, uric acid, BUN, creatinine were determined to verify the effects on hypertension by Kamisamul-tang (KSMT). And the results are concluded as follows. KSMT did not show any cytotoxicity at the range of concentration (1-250 ${\mu}g/m{\ell}$) on the human fibroblast cell (hFCs). KSMT decreased the production of reactive oxygen species (ROS) and DPPH generation depending on the concentration. KSMT significantly inhibited angiotensin converting enzyme(ACE) activity depending on the concentration compared with control. KSMT maintained body weight of body, heat and kidney nearly normal group in hypertensive rat induced by DOCA-salt. KSMT significantly blood pressure and heart beat rate compared with control in hypertensive rat induced by DOCA-salt. KSMT significantly decreased aldosterone, dopamine, norepineph- rine, epinephrine compared with control in hypertensive rat induced by DOCA-salt. KSMT significantly decreased the level of potassium and cloride compared with control wheareas increased that of calcium significantly in hypertensive rat induced by DOCA-salt. KSMT significantly decreased the level of uric acid and BUN compared with control in hypertensive rat induced by DOCA-salt. It is verified experimentally tat Kamisamultang(KMST) which has been used broadly as a clinical therapeutics in oriental medicine is effective for anti-hypertension mechanism. And it could be applied to develope the reliable prescriptions for anti-hypertension in the future.

Kami-bang-pung-tong-sung-san is Involved in Regulating Physiological Parameters Associated with Hypertension in Spontaneously Hypertensive Rat

  • Na Young Cheul;Nam Gung Uk;Lee Yang Koo;Kim Dong Hee
    • 동의생리병리학회지
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    • 제18권1호
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    • pp.243-249
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    • 2004
  • KBPT is the fortified prescription of Bang-pung-tong-sung-san(BPTS) by adding Spatholobi Clulis and Salviae Miltiorrzae Radix. BPTS prescription has been utilized in oriental medicine for the treatments of vascular diseases including hypertension, stroke, and arteriosclerosis. Yet, the overall mechanism underlying its activity at the cellular levels remains unknown. Using spontaneously hypertensive rat (SHR) model, we investigated whether the KBPTS has an effect on the pathophysiological parameters related to hypertension. Pretreatment of SHR with KBPTS was found to lower blood pressure and heartbeat rate. Levels of aldosterone. dopamine, and epinephrine were found to be significantly reduced in the serum of KBPTS-treated SHR. Histological examination of adrenal cortex and superior aorta showed that tissues from KBPTS-treated SHR rats were more intact and cleaner compared to saline-treated control. Levels of superoxide dismutase (SOD) protein in adrenal gland, aorta, myocardial tissue, and kidneys were higher in KBPTS-treated animals than control group. The present data suggest that KBPTS may play a role in normalizing cardiovascular function in SHR by controlling hypertension-related blood factors and superoxide stressors.

Anti-inflammatory Effect of Bear's Gall in Rat Microglia

  • Joo, Seong-Soo;Yoo, Yeong-Min;Lee, Seon-Goo;Lee, Do-Ik
    • 동의생리병리학회지
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    • 제19권1호
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    • pp.204-211
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    • 2005
  • We hypothesize that bear's gall may have a certain role in anti-inflammation through a preventive effect of pro-inflammatory potentials. Secondly, we tried to connect the experimental results to Alzheimer's disease (AD), which chronic inflammation is a main cause of the disease. For this theme, we designed to elucidate the efficacy of bear's gall in suppressing the pro-inflammatory mediators, such as nitric oxide (NO) and $interleukin-1{\beta}\;(IL-1{\beta})$ in rat microglia. From the study, we concluded that bear's gall plays a positive role in suppressing such pro-inflammatory repertoire from rat microglia comparing to normal and positive control, such as culture media and cyclosporine. Interestingly, bear's gall showed a prolonged effect of anti-inflammation comparing with cyclosporine when time goes by up to 48h with a significant suppression at $1.2\;mg/m{\ell}$. Therefore, we can consider that bear's gall in part can be applied to AD therapy in that it suppresses the expression of pro-inflammatory mediators as well as its continued effect.

KH-304의 항산화효과 및 Old rat model 에서의 Erectile dysfunction에 미치는 영향 (Effect of Water Extract of KH-304 on Anti-oxidant and Erectile dysfunction in Old Rat)

  • 이은정;이현지;김희석;황성완;황성연
    • 동의생리병리학회지
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    • 제20권4호
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    • pp.1009-1013
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    • 2006
  • The fallowing are the result of the experimental studies of KH-304 on the penile nitric oxide synthase (NOS) activity, SOD and the level of blood testosterone in old rat. KH-304 was tested for the expression and activity of eNOS, nNOS, SOD/Mn, caveol in-1, 3 in penis of old-rat. The penile expression level of the five enzyme were increased significantly after oral administration of the KH-304 100mg/kg for 100ays and the concentration of testosterone in the blood were increased. In vitro, the effect of SOD and free radical scavenging were increased significantly. Conclusively, KH-304 is capable of improving of sexual ability in old-rat.

고혈압모델에서 귀혈위자극기의 혈압강하 효과 (Effect of the Auriculoelectrostimulator on Blood Pressure In Hypertensive Rat Models)

  • 김희영;김성옥;황혜정;함대현;이권순;김순택;심인섭;이혜정
    • 동의생리병리학회지
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    • 제18권3호
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    • pp.724-728
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    • 2004
  • Several studies have shown that a low frequency stimulation can depress blood pressure in hypertension. We had developed a new auriculoelectrostimulator as an electronic blood pressure regulator for simple and easy stimulation. The new auriculoelectrostimulator was employed in hypertensive rat model induced by immobilization stress, diabetic and essential hypertensive rat models. Rats were stimulated by auriculoelectrostimulator at ear acupoint (Ear point for hypertension) bilaterally. Ear stimulation by auriculoelectrostimulator significantly decreased blood pressure in all hypertensive rat models and inhibited the increase of heart rates in stressed and spontaneous hypertensive rats. The results showed that auriculoelectrostimulator had depressive effects on hypertension in rat hypertensive models, suggesting that it is useful in treatment of hypertension.

산사(山揸)가 흰쥐의 식이성 고지혈증(高脂血症)에 미치는 영향 (Effects of Crataegii Fructus on the Diet-induced Hyperlipidemia in Rats)

  • 권순혁;김정범
    • 동의생리병리학회지
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    • 제24권1호
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    • pp.67-73
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    • 2010
  • The purpose of this study was to investigate the effects of Crataegii Fructus on the diet-induced hyperlipidemia in rats. Rats were divided into 4 groups, normal group(supplied enough water and feeds only), high fat diet administered group(supplied high fat diet for 4 weeks, Control group) and Crataegii Fructus administered group(supplied high fat diet and Crataegii Fructus lyophilization extract for 4 weeks, 397.3 mg/kg(rat) in sample A, 662.5 mg/kg(rat) in sample B). Body weight, liver weight and serum lipid levels were evaluated. The water extract of Crataegii Fructus decreased liver weight and triglyceride in high fat diet induced hyperlipidemia in rats, and increased HDL-cholesterol.

황정(黃精)이 흰쥐의 식이성 고지혈증에 미치는 영향 (Effects of Polygonati Rhizoma on the Diet-induced Hyperlipidemia in Rats)

  • 노승원;김정범
    • 동의생리병리학회지
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    • 제22권5호
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    • pp.1147-1151
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    • 2008
  • The purpose of this study was to investigate the effects of Polygonati Rhizoma on the diet-induced hyperlipidemia in rats. Rats were divided into 4 groups, normal group(supplied enough water and feeds only), high fat diet administered group(supplied high fat diet for 4 weeks, Control group) and Astragali Radix administered group(supplied high fat diet and Astragali Radix lyophilization extract for 4 weeks, 397.3 mg/kg(rat) in sample A, 662.5mg/kg(rat) in sample B). Body weight, liver weight and serum lipid levels were evaluated. The water extract of Polygonati Rhizoma decreased body weight, liver weight, total cholesterol, LDL-cholesterol, triglyceride and phospolipid in high fat diet induced hyperlipidemia in rats, and increased HDL-cholesterol.

황기가 흰쥐의 식이성 고지혈증에 미치는 영향 (Effects of Astragali Radix on the Diet-induced Hyperlipidemia in Rats)

  • 김학준;김정범
    • 동의생리병리학회지
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    • 제22권3호
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    • pp.575-579
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    • 2008
  • The purpose of this study was to investigate the effects of Astragali Radix on the diet-induced hyperlipidemia in rats. Hyperlipedemia was induced in rats with high fat diet. Rats were divided into 4 groups, normal group(supplied enough water and feeds only), high fat diet administered group(supplied high fat diet for 4 weeks, Control group) and Astragali Radix administered group(supplied high fat diet and Astragali Radix lyophilization extract for 4 weeks, 178.6 mg/kg(rat) in sample A, 297.8 mg/kg(rat) in sample B). Body weight, liver weight and serum lipid levels were evaluated. The water extract of Astragali Radix decreased body weight, liver weight, total cholesterol, LDL-cholesterol, triglyceride and phospolipid in high fat diet induced hyperlipidemia in rats, and increased HDL-cholesterol.