Biomedical subjects
Publications and source records attributed to F Rosatti.
S 5984 is a combination of tertatolol (S 2395-1) and indapamide. A positive synergism between these two constituents with regard to antihypertensive activity was demonstrated in the rat and the dog.
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The synthesis of a series of amides derived from benzonorbornen-2-endo-amine is described. Some compounds showed a remarkable infiltration anesthesia in mice and a moderate hypotensive activity in rats. Antiarrhythmic activity in mice is also reported.
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The synthesis of three series of 3-acyl-, 3-alkyl- and 3-dialkylaminoacetyl-5,7,7-trimethyl-6-oxa-3-azabicyclo[3.2.2]nonanes, (III), (IV) and (V), respectively, is described. A number of these compounds showed surface anesthesia in rabbits and infiltration anesthesia in mice, and antiarrhythmic activity in guinea pigs and mice, all effects being superior or similar to those of lidocaine. The circulatory, cardiac and respiratory effects in dogs and hens are also described.
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A series of N,N-dialkyl 5-trans-carbamoyloxy-1,2,3,3-tetramethyl-2-azabicyclo [2,2,2]octanes was prepared by reaction of 1,2,3,3-tetramethyl-2-azabicyclo [2,2,2]octan-5-trans-ol with phosgene, followed by aminolysis of the resulting chlorocarbonate with aliphatic secondary amines. 5-Chloro-1,2,3,3-tetramethyl-2-azabicyclo [2,2,2] octane (cis/trans mixture) was isolated as by-product of the reaction. A number of urethanes showed antiarrhythmic activity in guinea pigs and mice, as well as surface anesthesia in rabbits and infiltration anesthesia in mice, superior or similar to lidocaine. The circulatory, cardiac and respiratory effects in dogs and hens are also described.
A new series of aliphatic and aromatic esters of 1,2,3,3-tetramethyl-2-azabicyclo[2.2.2]octan-5-trans-ol is described. A number of these compounds showed antiarrhythmic activity in guinea pigs and mice, as well as surface anesthesia in rabbits and infiltration anesthesia in mice, superior or similar to that of lidocaine. The circulatory, cardiac and respiratory effects in dogs and hens are also described.
A new series of aliphatic and aromatic amides of 5-trans-(3-aminopropoxy)-1,2,3,3-tetramethyl-2-azabicyclo[2.2.2] octane is described. A number of these compounds showed antiarrhythmic activity in guinea pigs and mice, as well as surface anesthesia in rabbits and infiltration anesthesia in mice, superior or similar to that of lidocaine. The circulatory, cardiac and respiratory effects in dogs and hens are also described.
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Left ventricular hypertrophy (LVH) dramatically worsens hypertensive illness. Because the genesis of LVH appears to be multifactorial, antihypertensive treatment should aim to reduce not only pressor values but also the hypertrophic ventricular mass. This result can be obtained only when drugs able to act on both pathogenetic factors are used. To evaluate the effectiveness of antihypertensive therapy on regression of LVH, 21 patients with stage 2 essential hypertension were treated for a year with either atenolol (120 mg/d orally), a cardioselective beta-blocker without intrinsic sympathomimetic activity, or ramipril (5 mg/d orally), an angiotensin-converting enzyme inhibitor with high tissue activity. Both treatments produced significant control of hypertension and regression of LVH. No statistically significant difference between treatments was noted, except for heart rate, which was substantially unchanged by ramipril but significantly decreased by atenolol. Both drugs were well tolerated. Atenolol and ramipril have a major role in the long-term treatment of hypertension and in the regression of hypertension-associated LVH.
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The antibronchospastic value of the triple association adrenaline (1) + atropine (0,3) + papaverine (3) has been documented experimentally. Comparative investigations have been carried out with isoprenaline, metaproterenol, terbutaline and salbutamol. Toxicological and pharmacodynamic studies were done in the cardiovascular system and in vitro on certain muscles.
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