Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0085580 (essential hypertension)
 14,686 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

In a cross-over study, the effect of 25 mg urapidil infusion (U, Ebrantil 25, Byk-Gulden, FRG) on serotonin (5HT) metabolism and platelet aggregation (PA) was compared with the effect of placebo (P) in 7 patients with essential hypertension. No changes in 5HT and 5-hydroxyindolacetic acid (5HIAA) plasma levels and platelet 5HT content were observed. PA induced ex vivo by ADP decreased significantly. 5HIAA urinary excretion and fractional excretion (FE) increased, while 5HT renal metabolism changed only moderately. No changes in adrenaline and noradrenaline excretion were observed. In in vitro studies, U in therapeutic levels decreased ADP-induced PA and completely inhibited 5HT-induced PA (platelets of healthy volunteers). It is suggested that U has a direct antiaggregatory effect through 5HT2 receptors of platelets.
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PMID:Acute effect of urapidil on peripheral serotonin metabolism. 222 76

99 patients with arterial hypertension (AH) were studied: 17 patients with pheochromocytoma, 37 with aldosteronoma, 4 with corticosteroma, 38 with essential hypertension. Control group included 16 healthy subjects. The investigation was performed by means of a NMR-tomograph BMT-1100 ("Brucker", FRG) in axial and frontal planes according to Spin Echo (SE) technique with TR = 2.0 s, TE = 34 ms. Qualitative (visual) as well as quantitative criteria for evaluation of adrenal glands state were developed. Normal size of adrenal glands, relative intensity of their signal and T2 were calculated. The data obtained proved that relative intensity of the signal is a highly informative parameter for differential diagnosis of adrenal gland tumors (its value of less than 1.0 is evidence of cortex lesion, and that of more than 1.4--of medulla lesion). High informative value of MR-tomography for evaluation of adrenal glands state in patients with AH is proved by comparative data obtained by other methods, such as computer tomography aortography and histomorphology.
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PMID:[Clinical use of magnetic resonance tomography for assessing adrenal function in patients with arterial hypertension]. 285 44

The relative bioavailability of two different Prazosine preparations (Adversuten, VEB Arzneimittelwerk Dresden, GDR and Minipress, Pfizer GmbH, Karlsruhe, FRG) has been determined in 10 patients suffering from an essential hypertension by the cross-over test following a single oral application. The plasma concentrations determined on the same conditions revealed with both the preparations an almost equal blood level course. The pharmacokinetic parameters had been determined to the one-compartment system, demonstrating not any significant differences. Compared to the Minipress, the relative bioavailability of the preparation Adversuten was calculated to 102%. The discussion enters into a possible influence on the distribution parameters by alterations of the kidney function.
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PMID:[Comparative study of the relative bioavailabilities of two prazosin preparations in patients with essential hypertension]. 401 59

Thirty seven patients with arterial hypertension of renal genesis (chronic diffuse glomerulonephritis, chronic pyelonephritis, renal cystic disease and congenital abnormalities) were subjected to NMR-tomography. The comparison group comprised 12 patients with essential hypertension and 18 normal individuals constituted the control group. The examination was effected in the axial, frontal and sagittal planes using the BMT-1100 NMR-tomograph (Brucker, FRG) with the magnetic intensity of 0.235 T, the coil diameter of 60 cm, and the working frequency of 9.95 MHz. The technique made it possible to draw conclusions as to the presence or absence of the kidneys, their form, size, location and the structure of their cortex and medulla. The anatomo-tomographic picture of the kidneys in patients with chronic diffuse glomerulonephritis without renal insufficiency resembled that in cases of essential hypertension. In patients with chronic pyelonephritis the kidney contour was uneven and when renal insufficiency was present the kidneys were small and the borderline the cortex and the medulla was poorly differentiated. The technique proved especially informative in renal cystic disease and congenital abnormalities (renal aplasia and hypoplasia). The results obtained were compared with the data provided by other examination techniques.
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PMID:[Diagnostic potentials of NMR tomography of the kidneys of patients with symptomatic renal hypertension]. 406 86