No abstract available.
Licensure*

It is still not well documented what the basic roles for the regulation of renin secretion from the kidney take place. Since the early study on the renal ischemia for the production of hypertension was introduced, the renin-angiotensin system has been regarded as the possible pathogenetic mechanism for the renovascular hypertension. The renin-angiotensin system, however, could be activated by various stimuli, such as, the changes of intrarenal perfusion pressure, the load or concentriation of sodium at the sites of macular densa, the changes of the sympathetic nervous activity and the changes of potassium balance. To investigate the renin-angiotensin system and the influence of sympathetic nervous system on the regulation of renin secretion, the renovascular hypertension was induced in the dogs by constriction of unilateral renal artery, and the plasma renin activity was measured. The sodium load at the sites of macula densa was attained by furosemide, and then the activity of sympathetic nervous system was depressed by reserpine. The plasma renin activity was assayed by the method of Helmer and Cohn. By this bio-assay method, the plasma renin activity equivalent to 1 nanogram angiotensin-II can be measurable and the prepared plasma was found to have still vasopressor activity. The results observed in this experimental work are summarized as follows. 1. The blood pressure reached maximum on the 3rd postoperative day, and declined gradually to the level of preoperative day on the day of from the 6th to 12th day following constriction of renal artery. 3. The plasma renin activity was found to be well correlated with the increase of blood pressure, and then declined to its preoperative level with the reduction of blood pressure. It appears, therefore, that the renin-angiotensin system plays an important role in the pathogenesis of renovascular hypertension. 4. The urine flow rate in normal and reserpinized dogs was the same before administration of furosemide, but its rate was significantly increased in both groups after furosemide. The urine flow rate of reserpinized dogs, however, was significantly lower than that of the normal dogs during the first 5 minutes. 5. The urinary sodium excretion in normal and reserpinized dogs was significantly increased in both groups after administration of furosemide and there were no difference between the two groups. 6. The plasma renin activity of renal venous blood was significantly higher than that of femoral arterial blood in both groups before and after administration of furosemide. 7. The plasma renin activity of reserpinized dogs was significantly lower than that of normal dogs before administration of furosemide. After furosemide, however, the plasma renin activity was significantly increased in 30 minutes in both groups. This increase of plasma renin activity was less prominent in resepinized dogs than in normal. This results would suggest that the intrarenal mechanism regulating renin secretion also requires an intact sympathetic nervous system.
Animals ; Blood Pressure ; Constriction ; Dogs ; Furosemide ; Hypertension ; Hypertension, Renovascular ; Ischemia ; Kidney ; Perfusion ; Plasma ; Potassium ; Renal Artery ; Renin* ; Renin-Angiotensin System ; Reserpine ; Sodium ; Sympathetic Nervous System

No abstract available.
Breast Neoplasms* ; Breast*

No abstract available.
Leukemia, Myeloid, Acute*

No abstract available.
Extracorporeal Membrane Oxygenation*

Treatment of peptic ulceration by suppression of gastric aeid, secretion with the histamine H,-receptor antagonist, cimetidine is now well established. Prior to the availability of ranitidine, cimetidine was the only histamine H2-receptor antagonist available for treatment of duodenal and gastric ulceration. The aim of this study was to compare the efficacy of ranitidine and cimetidine in accelerating the healing of duodenal ulcer. The therapeutic trials comparing ranitidine with cimetidine in a total of 44. out-patients with endoscopically diagnosed duodenal ulcer ivere entered into the study. 28 patients were treated with ranitidine 150mg twiee daily, and 16 patients with cimetidine 200 mg 4 times daily for 4 weeks. Overall endoscopic healing rates were 75%, on ranitidine and 64.3% on cimetidine, and so ranitidine appears to be slightly more effective than cimetidine although too small numbers af patients were studied to detcet any difference between drugs. Aa ranitidine is effective with administration twice daily, patient compliance may be better than with the 4 times daily treatment regimen adopted with cimetidine, though has not yet to be adequately demonstrated. There were no significant side-effects, either ranitidine or cimetidine, to the administration of the drug, except a case of dyspepsia on cimetidine regimen.
Cimetidine ; Duodenal Ulcer ; Dyspepsia ; Histamine ; Humans ; Outpatients ; Patient Compliance ; Peptic Ulcer* ; Ranitidine ; Stomach Ulcer

No abstract available.
Mental Health*

The Occupational Job Stress Index Questionnaire is a selfadministered instrument consisting of 48 questions which are designed to collect the perceived Job stress about individual. This questionnaire was translated into Korean and applied to the selected groups of 300 blue collar workers musical manufacture industry for the purpose if assessing the it's reliability from April 1. to July 30, 1980. The results obtained were as follows ; 1. The ranged of reliability coefficients for all indices was .45-.75 which was lower than .54-.87 of original. 2. The inter-item correlation matrix for all items comprising an index along with the intercorrelation of these items with the items comprising closely related indices. 3. The reliability of JOB SATISFACTION, INTRINSIC REWARDS and IMPORTANCE REWARDS revealed .14-.20 lower than that of original. On the point of view, some items should be adjusted in parallel with actual situation of Korea through making a cultural comparative study and item factor analysis.
Job Satisfaction ; Korea* ; Music ; Surveys and Questionnaires* ; Reward

No abstract available.

No abstract available.
Amnion*