• The Journal of Korean Medicine
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• v.20 no.1 s.37
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• pp.185-196
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• 1999

The aim of the present study was to investigate the effect of Hwangryeonheadock-Tang and Onchung-Eum on essential hypertension and hyperlipidemia. Rats were orally administered for 30days with Hwangryeonheadock-Tang and Onchung-Eum and the blood was withdrawn at 10, 20 and 30days after an oral administration. The heart rate, tail blood pressure, plasma renin activity, plasma level of aldosterone. catecholamine, sodium and angiotensin II were measured after an oral administration of Hwangryeonheadock-Tang and Onchung-Eum in spontaneously hypertensive rat(SHR). In addition, serum levels of total cholesterol, triglyceride, HDL-cholesterol. LDL-cholesterol and total lipid were measured cholesterol-fed rats. The results were summarized as follows ; 1. A significant decrease of tail blood pressure was shown at 10, 20 and 30days after Hwangryeonheadock-Tang and Onchung-Eum treatment in SHRs. compared with saline. 2. Heart rate was significantly decreased at 30days in SHRs after Hwangryeonheadock-Tang treatment and at 20, 30days after Onchung-Eum treatment in SHRs. compared with the effects of saline group. 3, A significant decrease of plasma aldosterone level was elicited at 10, 20days after Hwangryeonheadock-Tang treatment in SHRs, compared with the effects of saline group, 4. Plasma renin activity was significantly decreased at 10days after Onchung-Eum treatment compared with the effects of saline group in SHRs. 5. Plasma norepinephrine level was significantly decreased at 20 and 30clays after Onchung-Eum treatment in SHRs, compared with the effects of saline group. 6. A significant decrease of plasma epinephrine level was induced at 30days after Hwangryeonheadock-Tang treatment and at 10, 20 and 30days after Onchung-Eum treatment, compared with the effects of saline group in SHRs. 7. Plasma sodium level was. significantly decreased at 20days after Hwangryeonheadock-Tang and Onchung-Eum treatment, compared with the effects of saline group in SHRs. 8. Plasma angiotensin II level was significantly decreased at 30days after Onchung-Eum treatment, compared with the effects of saline group in SHRs. 9. A significant decrease of body weight was observed at 20 and 30days after Hwangryeonheadock-Tang treatment and at 10, 20 and 30days after Onchung-Eum treatment. compared with the effects of saline group in hyperlipidemia rats. 10. Hwangryeonheadock-Tang and Onchung-Eum showed a significantly decreasing effect at 30days on serum total cholesterol level in hyperlipidemia rats, compared with the saline treatment. 11. Hwangryeonheadock-Tang and Onchung-Eum saw 20 and 30days respectively on serum triglyceride level in the saline treatment. 12. Hwangryeonheadock-Tang and Onchung-Eum decreased on serum HDL-cholesterol level significantly, compared with the saline treatment in hyperlipidemia rats. 13. A significant decrease of serum LDL-cholesterol was observed at 10 and 30days after Hwangryeonheadock-Tang treatment and at 30days after Onchung-Eum treatment, compared with the effects of saline group in hyperlipidemia rats. 14. Hwangryeonheadock-Tang had a significantly decreasing effect at 10, 20 and 30days on serum total lipid level, compared with the saline treatment in hyperlipidemia rats. 15. Hwangryeonheadock-Tang elicited a significantly decreasing effect on weight of kidneys, spleen and testes respectively and Onchung-Eum induced on weight of liver and spleen respectively in hyperlipidemia rats, compared with saline treatment. These Findings suggest a possible anti-hypertensive and anti-hyperlipidemic effect of Hwangryeonheadock-Tang and Onchung-Eum.

• Childhood Kidney Diseases
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• v.1 no.2
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• pp.101-108
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• 1997

Purpose : The clinical characteristics of renovascular hypertension (RVHT) in children were analyzed. Methods : Medical records of 16 children diagnosed as RVHT on the basis of angiography during Jan. '86 to Jun. 94 in our hospital were reviewed retrospectively. Results : The mean age at the onset was 8.5 yrs and the sex ratio(M:F) was 7:9. The causes of RVHT were Takayasu arteritis in 6, Moyamoya disease in 5, and fibromuscular dysplasia in 3 patients. Abdominal bruit was noted in 6 patients (38%). Peripheral renin activity was raised in all tested patients. Bilateral renal arterial involvemnent was found in 9 patients (56%). Captopril renal scans showed good correlation with angiographic findings. Five patients were treated with antihypertensives only, and blood pressure was controlled completely in 2 and incompletely in 3. Percutaneous transluminal angioplasty was performed in 10 patients with 50% of success rate. However, hypertension was recurred due to restenosis or accompaning aortic stenosis in 3 patients. Surgical treatment was performed in 4 patients, and the blood pressure was controlled partially in 1 and poorly in the remaining 3. Conclusions : Takayasu arteritis, Moyamoya disease and fibromuscular dysplasia are the major causes of childhood RVHT in our country. The diagnosis of RVHT in children should be based on a set of tests individually selected for case by case. For the low curability of the current treatment modalities available, RVHT in children should not be regarded as 'curable' so far. We expect, however, that the outcome will be improved by more extensive application of the newly developed surgical technique.

• Herbal Formula Science
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• v.12 no.2
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• pp.175-202
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• 2004

Nitric oxide(NO) play an important role in normal and pathophysiological cells including as a messenger molecule, neurotransmitter, microbiocidal agent, or dilator of blood vessels and artheriosclerosis, hypertension, myocardial infarction, respectively. To investigate that Ondamtang in the potential contribution of the levels of nitric oxide generated by endothelial nitric oxide synthase (eNOS) and the mechanisms of protection against L-NAME, human ECV304 cells, which normally do not express eNOS, were expressed by L-NAME. L-NAME stimulated rat or cells were found to be resistant to injury and delayed death following the Ondam-tang. Inhibition of nitric oxide synthesis abolished the protective effect against L-NAME, thrombin and collagen exposure. Interestingly, such effects have bee observed during stimulation with agents such as KCl on L-NAME mediate rats, were damaged by the NOS inhibitor NG-nitro-L-arginine methyl ester (L-NAME). Cardiovascular diseases is one of the blood vessels and renin-angiotensin system dynfunction. So we studied on herbal medicine that have a relation of vessels endothelium necrosis. In Oriental Medicine, Ondam-tang has been used for disease in relation to cardiovascular system. We studied on the protection and inhibitory effects of cardiovascular diseases in L-NAME induced rat or ECV304 cell lines through the Cell morphological pattern, Tunel assay, LDH activity, heart rate, blood pressure and immunohistochemistric analysis by Ondam-tang. As the result of this study, In group, the anti-apoptosis and necrosis in the cardiovascular system have a potential capacity for prevented, protected and treating the diseases of cardiovascular system, against the necrosis of rat and ECV304 cells with eNOS and calpain expression by L-NAME is promoted.

• The Journal of Internal Korean Medicine
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• v.22 no.4
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• pp.503-512
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• 2001

Objective : This study was carried out to investigate the effects of DDT on the brain damage and hypertension. Methods : We observed the effect of Dodamtang(DDT) extract on KCN-induced coma, focal brain ischemia by MCA occlusion, cytotoxicity and protection of PC12 cells and B103 cells induced by amyloid ${\beta}$ protein(25-35). To prove the effect of DDT as a blood pressure depressant, we measured aldosterone, renin activity, catecholamine, sodium and NO density using the seperated blood plasma. Results : DDT showed a protective effect on cytotoxicity of PC12 cells and B103 cells induced by amyloid ${\beta}$ protein(25-35) in a dose dependent manner and proved the significant abridgement of brain ischemic area and edema induced by MCA occlusion, a critical decrease of neurologic deficitic grade in the fore-limbs. DDT didn't reduce the duration of KCN(1.87mg/kg iv.)-induced coma and prolonged the survival rate in the case of KCN(3.0mg/kg iv.)-induced coma by the ratio of 20%. While DDT increased the value of NO in SHR, it significantly decreased the blood pressure of SHR and the value of aldosterone& epinephrine in SHR. Conclusions : These results suggested that DDT might be usefully applied for treatment of hypertension, cerebral infarction, and brain damage.

• Journal of the Korean Society of Food Culture
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• v.20 no.1
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• pp.113-122
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• 2005

This study was designed to investigates the effects of Korean pueraris radix water extract in Al(Aluminum) administered rats. Forty-eight male Sprague-Dawley rats weighing $100{\pm}10g$ were used for this experiment and divided into following 6 groups; control group, 3% pueraria radix in water extract group, 1000 and 2000ppm Al group, 1000 and 2000ppm Al group with 3% pueraria radix in water extract group. The Al administered rats were given 1000 and 2000 ppm of $Al_2(SO_4)_3$ disoved in the distilled water. The Al content in the rats tissue of Al administered group was lower than in the rats tissue of Al group with 3% pueraria radix in water extract group. Plasma levels of renin and aldosterone activity was increased by Al administration group, compared with 3% pueraria radix in water extract group and Al administred group. Glutamate oxaloacetate transaminase(GOT) and Glutamate pyruvate transaminase(GPT) were increased in Al-administered group and lower in the 3% extracts of pueraria radix in water extract group. Lactate dehydrogenase(LDH) was lower in the 3% extracts of pueraria radix-Al group than in the Al group. This results suggested that pueraria radix in water extract group has a lowering effects on the accumulation of Al and it is belived that the pueraria radix in extracted water group has some protective effects to Al administered in rats, but the mechanism of these effects was obscure.

• The Korean Journal of Pharmacology
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• v.32 no.1
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• pp.51-56
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• 1996

The objectives of this study is to find out mechanism of vasodilating effects of ANP in 2K-1C renovascular hypertensive rat aorta and to compare with those of normotensive rat aorta. In 2K-1C renovascular hypertensive rat, average arterial blood pressure and plasma renin activity were higher than in normotensive rat. In 2K-1C renovascular hypertensive rat aorta, NE sensitivity was more increased and maximal contraction of aorta by NE was higher than those of normotensive rat aorta. ANP inhibited NE-induced contraction in both 2K-1C renovascular hypertensive and normotensive rat aorta, concentration-dependently. However, ANP was less effective for relaxing NE-induced contraction in 2K-1C renovascular hypertensive rat aorta than in normotensive rat aorta. ANP inhibited $^{45}Ca^{2+}$ uptake induced by NE in both 2K-1C renovascular hypertensive and normotensive rat aorta. From these results. inhibition of $Ca^{2+}$ influx may be one of the vasodilating mechanism of ANP in 2K-1C renovascular hypertensive rat aorta. Although the potency of ANP in relaxing NE-induced contractions was attenuated, the efficacy of ANP was not changed in 2K-1C renovascular hypertensive rat aorta compared with that of ANP in normotensive rat aorta. Abbreviations: ANP, Atrial natriuretic peptide; 2K-1C, 2-kidney 1 clip; NE, norepinephrine; SHR, Spontaneously hypertensive rat; DOC, Deoxycorticosterone; EDTA, Ethylenediaminetetra-acetic acid; PSS, Physiological salt solution; TRIS, tris(hydroxymethyl) aminomethane

• The Korean Journal of Nuclear Medicine Technology
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• v.26 no.1
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• pp.42-46
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• 2022

Purpose In the meantime, there have been not many samples that require dilution, and it has been difficult for the examiner to set an appropriate dilution multiple for RIA test item and report the results. Accordingly, it was judged that it was necessary to set the maximum dilution multiple for each test and to verify the upper limit of the clinical reportable range. Therefore, in this study, the maximum dilution multiple for each RIA test was set and the upper limit of the clinical reportable range was verified accordingly Materials and Methods Among all RIA tests conducted at Asan Medical Center, the study treated on 30 types of tests which also conduct the dilution test. Data from March to July 2021 were collected and analyzed. The study was conducted on samples subjected to serial dilutions such as X2, X4 or X10, X10², X10³, X10⁴, X10⁵. Results Among a total of 30 test types, 18 test types have more than 5 N values in the tolerance range of 80~120%. As a result of the verification of maximum dilution multiples, the test set to 10⁴ is 𝛼-fetoprotein and thyroglobulin, and the test set to 10³ is CA-125, CEA, and 𝛽-hCG, and the test set to 10² is Free PSA, PSA, CA15-3, SCC, Ferritin, PTH, Cortisol, and Calcitonin. Tests set to 10 include three categories: 𝛽2-Microglobulin, C-peptide, and Testosterone. Conclusion It is expected that it will contribute to improving the quality of nuclear medicine blood tests as the results of dilution experiments can be reported quickly and accurately through the verification of the clinical reportable range.