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  • Ahluwalia, Tarunveer S, et al. (författare)
  • Uromodulin gene variant is associated with type 2 diabetic nephropathy.
  • 2011
  • Ingår i: Journal of Hypertension. - : Lippincott Williams & Wilkins. - 1473-5598. ; 29, s. 1731-1734
  • Tidskriftsartikel (refereegranskat)abstract
    • AIMS/HYPOTHESIS: About 35% of individuals with type 2 diabetes develop persistent albuminuria, lose renal function, and are at increased risk for microvascular complications like diabetic nephropathy. Recent genome-wide association studies have identified the uromodulin locus (UMOD), encoding the most common protein in human urine to be associated with hypertension and also with chronic kidney disease (CKD). In the present study we examined the association of the common variant of the uromodulin (UMOD) gene with type 2 diabetic nephropathy and kidney function. METHODS: UMOD variant rs13333226 was genotyped in a case-control material including 4888 unrelated type 2 diabetic individuals (n = 880 with and n = 4008 without nephropathy) from Sweden (Scania Diabetes Registry) using the ABI Real time TaqMan allelic discrimination assay. RESULTS: The G allele of rs13333226 was associated with a decreased risk of nephropathy [odds ratio (OR) 0.80, 95% confidence interval (CI) 0.69-0.91, P = 0.001] after correction for confounding factors like age, sex, body mass index (BMI), blood pressure, kidney function, smoking and duration of diabetes. The same allele was also associated with a better kidney function [estimated glomerular filtration rate (eGFR), β = 0.117, P < 0.0001] and lower systolic blood pressure (β = -0.048, P = 0.013) in the overall study cohort. CONCLUSION/INTERPRETATION: The present study highlights that the common variant of the UMOD gene is protective against diabetic nephropathy susceptibility and also affects kidney function and blood pressure in patients with type 2 diabetes. However, the association with diabetic nephropathy was independent of blood pressure and kidney function.
  • Alhadad, Alaa, et al. (författare)
  • Renal angioplasty causes a rapid transient increase in inflammatory biornarkers, but reduced levels of interleukin-6 and endothelin-1 1 month after intervention
  • 2007
  • Ingår i: Journal of Hypertension. - : Lippincott Williams & Wilkins. - 1473-5598. ; 25:9, s. 1907-1914
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective To examine prospectively whether inflammatory biomarkers and endothelin (ET)-1 are increased in patients with renal artery stenosis (RAS), and to investigate how treatment with percutaneous transluminal renal angioplasty (PTRA) affects these variables during the first month after intervention. Methods One hundred patients with suspected RAS undergoing renal angiography were included. PTRA was performed if the trans-stenotic mean arterial pressure gradient was >= 10 mmHg. High-sensitivity C-reactive protein (hs-CRP), interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF alpha), neopterin, CD40 ligand (CD40L) and endothelin-1 (ET-1) were measured before, and 1 day and 1 month after PTRA (n = 61) or diagnostic angiography only (n = 39). Results At baseline there were no significant differences in inflammatory biomarkers or ET-1 levels between patients subsequently undergoing PTRA or angiography only. After angiography, IL-6 and hs-CRP had increased in both groups compared to baseline (P< 0.001). At this time point hs-CRP (10.90 +/- 1.48 versus 6.37 +/- 1.61 mg/l; P<0.05) and IL-6 (13.70 +/- 0.94 versus 13.00 +/- 0.17 pg/ml; P<0.01) were higher in the PTRA group than in patients subjected to angiography only. One month after PTRA, systolic blood pressure and levels of IL-6 and ET-1 were lower than before intervention (P<0.05), whereas CD40L had increased compared to baseline (P<0.01). Conclusion In patients with RAS, PTRA triggers rapid transient increases in hs-CRP and IL-6; however, 1 month after PTRA, both IL-6 and ET-1 had decreased compared to before intervention, indicating beneficial effects of PTRA on inflammation and the endothelin system.
  • Andersson, Tobias, 1976, et al. (författare)
  • Country of birth and mortality risk in hypertension with and without diabetes: the Swedish primary care cardiovascular database.
  • 2021
  • Ingår i: Journal of hypertension. - : Lippincott Williams & Wilkins. - 1473-5598. ; 39:6, s. 1155-1162
  • Tidskriftsartikel (refereegranskat)abstract
    • Hypertension and diabetes are common and are both associated with high cardiovascular morbidity and mortality. We aimed to investigate associations between mortality risk and country of birth among hypertensive individuals in primary care with and without concomitant diabetes, which has not been studied previously. In addition, we aimed to study the corresponding risks of myocardial infarction and ischemic stroke.This observational cohort study of 62 557 individuals with hypertension diagnosed 2001-2008 in the Swedish Primary Care Cardiovascular Database assessed mortality by the Swedish Cause of Death Register, and myocardial infarction and ischemic stroke by the National Patient Register. Cox regression models were used to estimate study outcome hazard ratios by country of birth and time updated diabetes status, with adjustments for multiple confounders.During follow-up time without diabetes using Swedish-born as reference, adjusted mortality hazard ratios per country of birth category were Finland: 1.26 (95% confidence interval 1.15-1.38), high-income European countries: 0.84 (0.74-0.95), low-income European countries: 0.84 (0.71-1.00) and non-European countries: 0.65 (0.56-0.76). The corresponding adjusted mortality hazard ratios during follow-up time with diabetes were high-income European countries: 0.78 (0.63-0.98), low-income European countries: 0.74 (0.57-0.96) and non-European countries: 0.56 (0.44-0.71). During follow-up without diabetes, the corresponding adjusted hazard ratio of myocardial infarction was increased for Finland: 1.16 (1.01-1.34), whereas the results for ischemic stroke were inconclusive.In Sweden, hypertensive immigrants (with the exception for Finnish-born) with and without diabetes have a mortality advantage, as compared to Swedish-born.
  • Bager, Johan-Emil, et al. (författare)
  • Blood pressure levels and risk of haemorrhagic stroke in patients with atrial fibrillation and oral anticoagulants: results from The Swedish Primary Care Cardiovascular Database of Skaraborg.
  • 2021
  • Ingår i: Journal of hypertension. - 1473-5598. ; 39:8, s. 1670-1677
  • Tidskriftsartikel (refereegranskat)abstract
    • To assess the risk of haemorrhagic stroke at different baseline SBP levels in a primary care population with hypertension, atrial fibrillation and newly initiated oral anticoagulants (OACs).We identified 3972 patients with hypertension, atrial fibrillation and newly initiated OAC in The Swedish Primary Care Cardiovascular Database of Skaraborg. Patients were followed from 1 January 2006 until a first event of haemorrhagic stroke, death, cessation of OAC or 31 December 2016. We analysed the association between continuous SBP and haemorrhagic stroke with a multivariable Cox regression model and plotted the hazard ratio as a function of SBP with a restricted cubic spline with 130 mmHg as reference.There were 40 cases of haemorrhagic stroke during follow-up. Baseline SBP in the 145-180 mmHg range was associated with a more than doubled risk of haemorrhagic stroke, compared with a SBP of 130 mmHg.In this cohort of primary care patients with hypertension and atrial fibrillation, we found that baseline SBP in the 145-180 mmHg range, prior to initiation of OAC, was associated with a more than doubled risk of haemorrhagic stroke, as compared with an SBP of 130 mmHg. This suggests that lowering SBP to below 145 mmHg, prior to initiation of OAC, may decrease the risk of haemorrhagic stroke in patients with hypertension and atrial fibrillation.
  • Bager, Johan-Emil, et al. (författare)
  • Treatment of hypertension in old patients without previous cardiovascular disease.
  • 2019
  • Ingår i: Journal of hypertension. - 1473-5598. ; 37:11, s. 2269-2279
  • Tidskriftsartikel (refereegranskat)abstract
    • The aim of this study was to compare the risk of cardiovascular disease (CVD) - nonfatal acute myocardial infarction (AMI) or stroke - at blood pressure levels that meet current recommendations with risk at lower levels, particularly in older patients.We identified patients with hypertension aged 40-90 years from a primary care register. Patients with a history of cancer, diabetes mellitus or CVD were excluded. Patients were divided into age groups (40-75 and 76-90), and four groups of SBP 110-129, 130-139 (reference), 140-149 and ≥150 mmHg. We used the Kaplan-Meier estimator to study incidence of AMI, stroke and a composite of the two. Cox proportional-hazards regression was used to estimate hazard ratios for outcomes.We included 31 704 patients: 26 663 were 40-75 years old and 5041 were 76-90 years old. Mean follow-up was 2 years. Although no significant differences in risk of any outcome were found in the younger group, low blood pressure was associated with the lowest risk in the older group. Older patients in the 110-129 mmHg group had a lower incidence of CVD (15.9/1000 vs. 25.3/1000 person-years) than the reference group. After adjustment for covariates, the hazard ratio of CVD in older patients in the 110-129 mmHg group compared with the reference group was 0.60 (95% confidence interval 0.40-0.92).Blood pressure levels lower than those currently recommended are not harmful among older patients. The association between lower SBP and lesser risk of CVD may instead suggest a beneficial effect of lower SBP.
  • Bang, Casper N., et al. (författare)
  • Systolic left ventricular function according to left ventricular concentricity and dilatation in hypertensive patients : the Losartan Intervention For Endpoint reduction in hypertension study
  • 2013
  • Ingår i: Journal of Hypertension. - : Lippincott Williams & Wilkins. - 0263-6352 .- 1473-5598. ; 31:10, s. 2060-2068
  • Tidskriftsartikel (refereegranskat)abstract
    • Background:Left ventricular hypertrophy [LVH, high left ventricular mass (LVM)] is traditionally classified as concentric or eccentric based on left ventricular relative wall thickness. We evaluated left ventricular systolic function in a new four-group LVH classification based on left ventricular dilatation [high left ventricular end-diastolic volume (EDV) index and concentricity (LVM/EDV(2/3))] in hypertensive patients.Methods and results:Nine hundred thirty-nine participants in the Losartan Intervention For Endpoint reduction in hypertension (LIFE) echocardiography substudy had measurable LVM at enrolment. Patients with LVH (LVM/body surface area 116g/m(2) in men and 96g/m(2) in women) were divided into four groups; eccentric nondilated' (normal LVM/EDV and EDV), eccentric dilated' (increased EDV, normal LVM/EDV), concentric nondilated' (increased LVM/EDV with normal EDV), and concentric dilated' (increased LVM/EDV and EDV) and compared to patients with normal LVM. At baseline, 12% had eccentric nondilated, 20% eccentric dilated, 29% concentric nondilated, and 14% concentric dilated LVH, with normal LVM in 25%. Compared with the concentric nondilated LVH group, those with concentric dilated LVH had significantly lower pulse pressure/stroke index and ejection fraction; higher LVM index, stroke volume, cardiac output, left ventricular midwall shortening, left atrial volume and isovolumic relaxation time; and more had segmental wall motion abnormalities (all P<0.05). Similar differences existed between patients with eccentric dilated and those with eccentric nondilated LVH (all P<0.05). Compared with patients with normal LVM, the eccentric nondilated had higher LV stroke volume, pulse pressure/stroke index, Cornell voltage product and SBP, and lower heart rate and fewer were African-American (all P<0.05).Conclusion:The new four-group classification of LVH identifies dilated subgroups with reduced left ventricular function among patients currently classified with eccentric or concentric LVH.
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