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1.
Curr Med Res Opin ; 25(11): 2655-62, 2009 Nov.
Article in English | MEDLINE | ID: mdl-19751115

ABSTRACT

UNLABELLED: ABSTRACT (ARB), in essential hypertensive patients not adequately controlled by amlodipine monotherapy. METHODS: This was a multi-centre, randomised, double-blind, active-controlled study in patients with essential hypertension. After a washout period followed by a single-blind amlodipine 10 mg run-in period, patients with mean sitting diastolic blood pressure (msDBP) > or =90 mmHg and <110 mmHg were randomised to receive amlodipine/valsartan (10/160 mg o.d.) or amlodipine (10 mg o.d.) for 8 weeks. TRIAL REGISTRATION NUMBER: NCT00171002. MAIN OUTCOME MEASURES: The primary efficacy variable was change from baseline in msDBP at study endpoint. Secondary efficacy variables were change from baseline in mean sitting systolic blood pressure (msSBP), responder rate (msDBP <90 mmHg or > or =10 mmHg reduction from baseline) and DBP control rate (msDBP <90 mmHg). RESULTS: Of the 1283 patients enrolled in single-blind period, 944 were randomised to receive amlodipine/valsartan 10/160 mg (n = 473) and amlodipine 10 mg (n = 471). Statistically significant greater reductions (p < 0.0001) from baseline in msSBP/msDBP were observed with combination therapy (12.9/11.4 mmHg) compared to monotherapy (10.0/9.3 mmHg). Responder rate was significantly greater (p = 0.0011) with combination therapy (79.0%) compared to monotherapy (70.1%). The percentage of patients with controlled DBP was also significantly (p < 0.0001) higher with combination therapy (77.8%) compared to monotherapy (66.5%). Incidence of peripheral oedema was slightly higher with amlodipine monotherapy (9.4%) compared to combination therapy (7.6%). CONCLUSION: The combination of amlodipine/valsartan in this 8-week double-blind study provided additional BP control and was well tolerated in patients inadequately controlled with amlodipine monotherapy. Results should be interpreted with the knowledge that study entry criteria may limit application to a wider population.


Subject(s)
Amlodipine/administration & dosage , Hypertension/drug therapy , Tetrazoles/administration & dosage , Valine/analogs & derivatives , Adult , Aged , Aged, 80 and over , Algorithms , Amlodipine/adverse effects , Antihypertensive Agents/administration & dosage , Antihypertensive Agents/adverse effects , Blood Pressure/drug effects , Double-Blind Method , Drug Resistance/drug effects , Drug Therapy, Combination/adverse effects , Female , Humans , Hypertension/physiopathology , Male , Middle Aged , Placebos , Tetrazoles/adverse effects , Tetrazoles/pharmacology , Treatment Failure , Treatment Outcome , Valine/administration & dosage , Valine/adverse effects , Valine/pharmacology , Valsartan
2.
J Cell Mol Med ; 12(5A): 1777-81, 2008.
Article in English | MEDLINE | ID: mdl-18671760

ABSTRACT

We present here evidence for the existence of a new type of interstitial cell in human myocardial sleeves of pulmonary veins: interstitial Cajal-like cell (ICLC). This cell fulfils the criteria for positive diagnosis of ICLC, including CD 117/c-kit positivity. Transmission electron microscopy revealed typical ICLC with 2 or 3 very long processes (several tens of mm) suddenly emerging from the cellular body. Also, these processes appear moniliform but extremely thin (0.1-0.4 mm) under the resolving power of the usual microscopy. Cell processes establish close spatial relationships between each other, as well as with capillaries and nerve endings. ICLC appear located among the myocardial cells and particularly at the border between the myocardial sleeve and pulmonary vein wall.


Subject(s)
Myocardium/cytology , Myocardium/ultrastructure , Pulmonary Veins/cytology , Pulmonary Veins/ultrastructure , Cells, Cultured , Humans , Microscopy, Electron, Transmission , Myocardium/metabolism , Proto-Oncogene Proteins c-kit/metabolism , Pulmonary Veins/metabolism
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