N-terminal probrain natriuretic peptide predicts altered circadian variation in essential hypertension

Dogan S.M. | Aydin M. | Gursurer M. | Dursun A. | Mungan G. | Onuk T.

Article | 2007 | Coronary Artery Disease18 ( 5 ) , pp.347 - 352

Diminished nocturnal blood pressure fall in nondipper hypertensive patients are closely associated with poor prognosis. N-terminal probrain natriuretic peptide can also identify poor prognosis in miscellaneous heart diseases. In this study, we aimed to clarify the association between probrain natriuretic peptide levels and diminished nocturnal blood pressure fall in patients with essential hypertension. Twenty-six consecutive nondipper (age: 53±8 years, 14 men) (group 1), and 26 dipper hypertensive patients (age: 52±9 years, 16 men) (group 2), based on ambulatory blood pressure monitoring, and age and sex-matched 28 normotensive par . . .ticipants (age: 50±11 years, 16 men) (group 3) were compared with each other. Although systolic and diastolic ambulatory blood pressure values were similar in hypertensives during the day, those at night were higher in group 1 ( Daha fazlası Daha az

Relationship of apoE polymorphism with lipoprotein(a), apoA, apoB and lipid levels in atherosclerotic infarct

Tascilar N. | Dursun A. | Ankarali H. | Mungan G. | Sumbuloglu V. | Ekem S. | Bozdogan S.

Article | 2009 | Journal of the Neurological Sciences277 ( 01.Feb ) , pp.17 - 21

Background and purpose: Apolipoprotein E (apoE) polymorphism is suggested to be a risk factor in stroke in some populations, either by affecting lipid parameters or independently. Its effect on lipoprotein(a) [Lp(a)] is not known. The roles of apoE polymorphism and of high Lp(a) levels in atherosclerotic stroke (AS) in the Turkish population are unclear. Our aim was to investigate the relationship of apoE alleles and Lp(a) level with AS and the relationship of apoE alleles with Lp(a) and other lipid parameters. Methods: ApoE polymorphisms and lipid parameters were prospectively evaluated in 85 patients and 77 controls with normal br . . .ain imaging. Results: Only hypertension, diabetes mellitus, associated vascular diseases and decreased high-density lipoprotein cholesterol levels were found to be independent risk factors for stroke. However, in the presence of apoE/E4 allele, increased low-density lipoprotein cholesterol (LDL-chol), apolipoprotein B (apoB) and Lp(a) levels and in the presence of apo E/E3 allele, only Lp(a) levels were determined as risk factors. Conclusion: This study showed that while apoE polymorphism was not a risk factor itself, high Lp(a), LDL-chol and apoB were determined to be risk factors in E3 or E4 carriers. © 2008 Elsevier B.V. All rights reserved Daha fazlası Daha az

Angiotensin-converting enzyme insertion/deletion polymorphism has no effect on the risk of atherosclerotic stroke or hypertension

Tascilar N. | Dursun A. | Ankarali H. | Mungan G. | Ekem S. | Baris S.

Article | 2009 | Journal of the Neurological Sciences285 ( 01.Feb ) , pp.137 - 141

Background and purpose: Stroke is a heterogeneous multifactorial disease. Hence, a large number of candidate genes are involved in stroke pathophysiology, such as blood pressure regulation and atherosclerosis. Although angiotensin-converting enzyme insertion/deletion (ACE I/D) polymorphism is considered to have a role in hypertension, coronary artery disease, and myocardial infarction, its relationship with cerebrovascular disease and hypertension in stroke in different ethnic populations is still inconsistent. Methods: ACE I/D polymorphism, detected by polymerase chain reaction (PCR), was studied in 97 patients with large-vessel an . . .d 60 patients with small-vessel atherosclerotic stroke (44 asymptomatic, 16 symptomatic lacunes) and 85 healthy subjects with normal brain imaging. The demographic data, lipid profile and risk factors of patients and controls were obtained retrospectively. Results: ACE genotypes were in Hardy-Weinberg equilibrium in both patients and controls. Prevalences of DD, ID and II genotype were 41%, 40%, and 19%, respectively, in the stroke group. Differences in ACE I/D polymorphism distribution were statistically insignificant between the groups. This lack of association between stroke and ACE I/D polymorphism did not change in the presence of traditional risk factors (hypertension, diabetes mellitus, smoking, and dyslipidemia). Although hypertension was significantly more common in the patient groups, ACE I/D polymorphism showed no effect on hypertension risk. This lack of association also did not change according to groups or in the presence of diabetes mellitus, male gender or smoking. Conclusion: ACE I/D polymorphism did not predict the risk of stroke or hypertension in our population living in the western Black Sea region of Turkey. © 2009 Elsevier B.V. All rights reserved Daha fazlası Daha az

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