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Lucas-Herald AK, Montezano AC, Alves-Lopes R, Haddow L, Alimussina M, O’Toole S, Flett M, Lee B, Amjad SB, Steven M, Brooksbank K, McCallum L, Delles C, Padmanabhan S, Ahmed SF, Touyz RM. Vascular dysfunction and increased cardiovascular risk in hypospadias. Eur Heart J 2022; 43:1832-1845. [PMID: 35567552 PMCID: PMC9113289 DOI: 10.1093/eurheartj/ehac112] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 12/30/2021] [Accepted: 02/15/2022] [Indexed: 11/30/2022] Open
Abstract
AIMS Hypogonadism is associated with cardiovascular disease. However, the cardiovascular impact of hypogonadism during development is unknown. Using hypospadias as a surrogate of hypogonadism, we investigated whether hypospadias is associated with vascular dysfunction and is a risk factor for cardiovascular disease. METHODS AND RESULTS Our human study spanned molecular mechanistic to epidemiological investigations. Clinical vascular phenotyping was performed in adolescents with hypospadias and controls. Small subcutaneous arteries from penile skin from boys undergoing hypospadias repair and controls were isolated and functional studies were assessed by myography. Vascular smooth muscle cells were used to assess: Rho kinase, reactive oxygen species (ROS), nitric oxide synthase/nitric oxide, and DNA damage. Systemic oxidative stress was assessed in plasma and urine. Hospital episode data compared men with a history of hypospadias vs. controls. In adolescents with hypospadias, systolic blood pressure (P = 0.005), pulse pressure (P = 0.03), and carotid intima-media thickness standard deviation scores (P = 0.01) were increased. Arteries from boys with hypospadias demonstrated increased U46619-induced vasoconstriction (P = 0.009) and reduced acetylcholine-induced endothelium-dependent (P < 0.0001) and sodium nitroprusside-induced endothelium-independent vasorelaxation (P < 0.0001). Men born with hypospadias were at increased risk of arrhythmia [odds ratio (OR) 2.8, 95% confidence interval (CI) 1.4-5.6, P = 0.003]; hypertension (OR 4.2, 95% CI 1.5-11.9, P = 0.04); and heart failure (OR 1.9, 95% CI 1.7-114.3, P = 0.02). CONCLUSION Hypospadias is associated with vascular dysfunction and predisposes to hypertension and cardiovascular disease in adulthood. Underlying mechanisms involve perturbed Rho kinase- and Nox5/ROS-dependent signalling. Our novel findings delineate molecular mechanisms of vascular injury in hypogonadism, and identify hypospadias as a cardiovascular risk factor in males.
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Affiliation(s)
- Angela K Lucas-Herald
- Institute of Cardiovascular and Medical Sciences, British Heart Foundation Centre for Research Excellence, University of Glasgow, 126 University Avenue, Glasgow G12 8TA, UK
- Developmental Endocrinology Research Group, School of Medicine, Dentistry and Nursing, University of Glasgow, Royal Hospital for Children, 1345 Govan Road, Glasgow G45 8TF, UK
| | - Augusto C Montezano
- Institute of Cardiovascular and Medical Sciences, British Heart Foundation Centre for Research Excellence, University of Glasgow, 126 University Avenue, Glasgow G12 8TA, UK
| | - Rheure Alves-Lopes
- Institute of Cardiovascular and Medical Sciences, British Heart Foundation Centre for Research Excellence, University of Glasgow, 126 University Avenue, Glasgow G12 8TA, UK
| | - Laura Haddow
- Institute of Cardiovascular and Medical Sciences, British Heart Foundation Centre for Research Excellence, University of Glasgow, 126 University Avenue, Glasgow G12 8TA, UK
| | - Malika Alimussina
- Developmental Endocrinology Research Group, School of Medicine, Dentistry and Nursing, University of Glasgow, Royal Hospital for Children, 1345 Govan Road, Glasgow G45 8TF, UK
| | - Stuart O’Toole
- Department of Pediatric Surgery, Royal Hospital for Children, 1345 Govan Road, Glasgow G45 8TF, UK
| | - Martyn Flett
- Department of Pediatric Surgery, Royal Hospital for Children, 1345 Govan Road, Glasgow G45 8TF, UK
| | - Boma Lee
- Department of Pediatric Surgery, Royal Hospital for Children, 1345 Govan Road, Glasgow G45 8TF, UK
| | - S Basith Amjad
- Department of Pediatric Surgery, Royal Hospital for Children, 1345 Govan Road, Glasgow G45 8TF, UK
| | - Mairi Steven
- Department of Pediatric Surgery, Royal Hospital for Children, 1345 Govan Road, Glasgow G45 8TF, UK
| | - Katriona Brooksbank
- Institute of Cardiovascular and Medical Sciences, British Heart Foundation Centre for Research Excellence, University of Glasgow, 126 University Avenue, Glasgow G12 8TA, UK
| | - Linsay McCallum
- Institute of Cardiovascular and Medical Sciences, British Heart Foundation Centre for Research Excellence, University of Glasgow, 126 University Avenue, Glasgow G12 8TA, UK
| | - Christian Delles
- Institute of Cardiovascular and Medical Sciences, British Heart Foundation Centre for Research Excellence, University of Glasgow, 126 University Avenue, Glasgow G12 8TA, UK
| | - Sandosh Padmanabhan
- Institute of Cardiovascular and Medical Sciences, British Heart Foundation Centre for Research Excellence, University of Glasgow, 126 University Avenue, Glasgow G12 8TA, UK
| | - S Faisal Ahmed
- Developmental Endocrinology Research Group, School of Medicine, Dentistry and Nursing, University of Glasgow, Royal Hospital for Children, 1345 Govan Road, Glasgow G45 8TF, UK
| | - Rhian M Touyz
- Institute of Cardiovascular and Medical Sciences, British Heart Foundation Centre for Research Excellence, University of Glasgow, 126 University Avenue, Glasgow G12 8TA, UK
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Wang Z, Yu D, Cai Y, Zhao B, Zhang X, Zhao Z. Optimal cut-off threshold in pulse pressure predicting cardiovascular death among newly diagnosed end-stage renal disease patients: A prospective cohort study. Medicine (Baltimore) 2019; 98:e16340. [PMID: 31277187 PMCID: PMC6635176 DOI: 10.1097/md.0000000000016340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Cardiovascular disease (CVD) is the leading cause of death in patients with end-stage renal disease (ESRD) treated by dialysis. Pulse pressure (PP) as an independent prognostic factor of cardiovascular risk might be clinically implicated in predicting the short-term deaths due to cardiovascular diseases in ESRD patients. This study aimed to investigate the dose-response association between PP and risk of cardiovascular mortality in patients initializing peritoneal dialysis (PD). All patients registered with the Henan Peritoneal Dialysis Registry (HPDR) between 2007 and 2014 were incorporated in the current cohort study. PP was assessed by the date of initialisation of PD and cardiovascular mortality in 2 years after the initialisation of PD was defined as the outcome. All accessible clinical measurements were screened as covariables. Further dose-response relationships between PP and risks were explored using spline models. There was a non-linear relationship between PP and the risk of 2-year death for a cardiovascular diseases (P <.001 for linearity test). The PP associated with the lowest risk of cardiovascular mortality was 61 (95% CI 56-64) mmHg. In ESRD patients initializing PD, PP is a good prognostic factor of risk of short-term cardiovascular mortality. The risk is lowest with a PP of 56 to 64 mmHg.
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Affiliation(s)
- Zheng Wang
- Department of Nephrology, the First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Dahai Yu
- Department of Nephrology, the First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
- Arthritis Research UK Primary Care Centre, Research Institute for Primary Care & Health Sciences, Keele University, Keele, UK
| | - Yamei Cai
- Department of Nephrology, the First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Bin Zhao
- The Second Division of Internal Medicine, Kejing Community Health Centre, Jiyuan, China
| | - Xiaoxue Zhang
- Department of Nephrology, the First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Zhanzheng Zhao
- Department of Nephrology, the First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
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Relation of blood pressure and organ damage: comparison between feasible, noninvasive central hemodynamic measures and conventional brachial measures. J Hypertens 2019; 36:1276-1283. [PMID: 29465711 DOI: 10.1097/hjh.0000000000001688] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
OBJECTIVE The present cross-sectional study investigated whether central SBP and pulse pressure (PP) measured noninvasively with a novel cuff-based stand-alone monitor are more strongly associated with hypertensive end-organ damage than corresponding brachial measures. METHODS We investigated the cross-sectional association of central versus brachial SBP and PP with echocardiographic left ventricular mass index (LVMI), LV hypertrophy (LVH), carotid intima-media thickness (IMT), and increased IMT (IMT ≥ 75th percentile) among 246 participants drawn from the general population (mean age 57.2 years, 55.3% women). RESULTS All blood pressure (BP) measures were positively correlated with LVMI and IMT (P < 0.001 for all). Brachial and central SBP correlated equally strongly with LVMI (r = 0.42 versus 0.40, P for difference 0.19) and IMT (r = 0.32 versus 0.33, P = 0.60). However, brachial PP correlated more strongly than central PP with LVMI (r = 0.34 versus 0.27, P = 0.03) and IMT (r = 0.40 versus 0.35, P = 0.04). In multivariable-adjusted logistic models, all four BP measures were significantly associated with LVH and increased IMT (P ≤ 0.03 for all). However, the diagnostic accuracy of logistic regression models that included brachial or central hemodynamic parameters was similar for LVH [area under curve (AUC) for SBP: 0.74 versus 0.76, P = 0.16; AUC for PP: 0.75 versus 0.73, P = 0.35] and IMT (AUC for SBP: 0.61 versus 0.61, P = 0.67; AUC for PP: 0.63 versus 0.61, P = 0.29). CONCLUSION Our findings suggest that central SBP and PP measured with a stand-alone noninvasive BP monitor do not improve diagnostic accuracy for end-organ damage over corresponding brachial measures.
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Haseler E, Melhem N, Sinha MD. Renal disease in pregnancy: Fetal, neonatal and long-term outcomes. Best Pract Res Clin Obstet Gynaecol 2019; 57:60-76. [PMID: 30930143 DOI: 10.1016/j.bpobgyn.2019.01.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 12/19/2018] [Accepted: 01/21/2019] [Indexed: 12/17/2022]
Abstract
Renal disease in women of childbearing age is estimated to be approximately 3%; consequently, renal disease is not an uncommon comorbidity in pregnancy. There has been considerable evidence published over the last 20 years to suggest that renal disease in pregnancy is associated with higher maternal, fetal, and offspring morbidity. Studies published are largely heterogeneous; include unmatched cohort studies; and focus on early neonatal outcomes such as prematurity, small for gestational age, and neonatal unit admission. There appears to be an inverse relationship between maternal renal function and likelihood of neonatal morbidity using these outcome measures. Overall though, data regarding medium-to long-term outcomes for children born to mothers with renal disease are scarce. However, in view of emerging epidemiological evidence regarding cardiovascular programming in intrauterine life in those born premature or small for gestational age, it is likely that this population of children remain at high risk of cardiovascular disease as adults. The scope of this review is to amalgamate and summarize existing evidence regarding the outcomes of infants born to mothers with renal disease. Focus will be given to pregnancy-related acute kidney injury, chronic kidney disease, dialysis, and transplantation.
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Affiliation(s)
- Emily Haseler
- Department of Paediatric Nephrology, Evelina London Children's Hospital, Guys & St Thomas NHS Foundation Trust, Westminster Bridge Road, London SE1 7EH, UK
| | - Nabil Melhem
- Department of Paediatric Nephrology, Evelina London Children's Hospital, Guys & St Thomas NHS Foundation Trust, Westminster Bridge Road, London SE1 7EH, UK
| | - Manish D Sinha
- Department of Paediatric Nephrology, Evelina London Children's Hospital, Guys & St Thomas NHS Foundation Trust, Westminster Bridge Road, London SE1 7EH, UK; Kings College London, UK.
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Hou D, Yan Y, Liu J, Zhao X, Cheng H, Mi J. Childhood pulse pressure predicts subclinical vascular damage in adulthood. J Hypertens 2018; 36:1663-1670. [DOI: 10.1097/hjh.0000000000001748] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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Al Rifai M, Martin SS, McEvoy JW, Nasir K, Blankstein R, Yeboah J, Miedema M, Shea SJ, Polak JF, Ouyang P, Blumenthal RS, Bittencourt M, Bensenor I, Santos RD, Duncan BB, Santos IS, Lotufo PA, Blaha MJ. The prevalence and correlates of subclinical atherosclerosis among adults with low-density lipoprotein cholesterol <70 mg/dL: The Multi-Ethnic Study of Atherosclerosis (MESA) and Brazilian Longitudinal Study of Adult Health (ELSA-Brasil). Atherosclerosis 2018; 274:61-66. [PMID: 29751286 DOI: 10.1016/j.atherosclerosis.2018.04.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 04/10/2018] [Accepted: 04/18/2018] [Indexed: 11/26/2022]
Abstract
BACKGROUND AND AIMS The prevalence and correlates of subclinical atherosclerosis when low-density lipoprotein cholesterol (LDL-C) levels are low remain unclear. Therefore, we examined the association of cardiovascular risk factors and subclinical atherosclerosis among individuals with untreated LDL-C <70 mg/dL. METHODS We included participants from the Multi-Ethnic Study of Atherosclerosis (MESA) and the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil) cohorts. To optimize accuracy, LDL-C was calculated by the validated Martin/Hopkins equation that uses an adjustable factor for the ratio of triglycerides to very low-density lipoprotein cholesterol. We defined subclinical atherosclerosis as a coronary artery calcium (CAC) score >0 in the combined cohort or common carotid intima media thickness (cIMT) in the 4th quartile, using cohort-specific cIMT distributions at baseline. Logistic regression models examined the cross-sectional associations of cardiovascular risk factors and subclinical atherosclerosis. RESULTS Among 9411 participants not on lipid lowering therapy, 263 (3%) had LDL-C <70 mg/dL (MESA: 206, ELSA: 57). Mean age in this population was 58 (SD 12) years, with 43% men, and 41% Black. The prevalence of CAC >0 in those with untreated LDL-C<70 mg/dL was 30%, and 18% were in 4th quartile of cIMT. In demographically adjusted models, only ever smoking was significantly associated with both CAC and cIMT. Similar results were obtained in risk factor-adjusted models (smoking: OR, 2.29; 95% CI, 1.10-4.80 and OR, 3.44; 95% CI, 1.41-8.37 for CAC and cIMT, respectively). CONCLUSIONS Among middle-aged to older individuals with untreated LDL-C <70 mg/dL, subclinical atherosclerosis remains moderately common and is associated with cigarette smoking.
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Affiliation(s)
- Mahmoud Al Rifai
- The Johns Hopkins Ciccarone Center for Prevention of Heart Disease, Baltimore, MD, USA; Department of Internal Medicine, Kansas University School of Medicine, Wichita, KS, USA
| | - Seth S Martin
- The Johns Hopkins Ciccarone Center for Prevention of Heart Disease, Baltimore, MD, USA
| | - John W McEvoy
- The Johns Hopkins Ciccarone Center for Prevention of Heart Disease, Baltimore, MD, USA
| | - Khurram Nasir
- The Johns Hopkins Ciccarone Center for Prevention of Heart Disease, Baltimore, MD, USA; Center for Prevention and Wellness, Baptist Health South Florida, Miami, FL, USA
| | - Ron Blankstein
- Departments of Medicine (Cardiovascular Division) and Radiology, Brigham and Women's Hospital, Boston, MA, USA
| | - Joseph Yeboah
- Department of Cardiology, Wake Forest Baptist Health, Winston-Salem, NC, USA
| | - Michael Miedema
- Minneapolis Heart Institute Foundation, Minneapolis, MS, USA
| | - Steven J Shea
- Departments of Medicine and Epidemiology, Columbia University, New York, NY, USA
| | - Joseph F Polak
- Department of Radiology, Tufts University School of Medicine, Boston, MA, USA
| | - Pamela Ouyang
- Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Roger S Blumenthal
- The Johns Hopkins Ciccarone Center for Prevention of Heart Disease, Baltimore, MD, USA
| | - Marcio Bittencourt
- Center for Clinical and Epidemiological Research, University Hospital, University of São Paulo School of Medicine, São Paulo, Brazil
| | - Isabela Bensenor
- Center for Clinical and Epidemiological Research, University Hospital, University of São Paulo School of Medicine, São Paulo, Brazil; University of São Paulo School of Medicine, São Paulo, Brazil
| | - Raul D Santos
- Center for Clinical and Epidemiological Research, University Hospital, University of São Paulo School of Medicine, São Paulo, Brazil; Lipid Clinic Heart Institute (InCor), University of São Paulo Medical School Hospital, São Paulo, Brazil
| | - Bruce B Duncan
- Faculty of Medicine, Federal University of Rio Grande do Sul, Brazil
| | - Itamar S Santos
- Center for Clinical and Epidemiological Research, University Hospital, University of São Paulo School of Medicine, São Paulo, Brazil; University of São Paulo School of Medicine, São Paulo, Brazil
| | - Paulo A Lotufo
- Center for Clinical and Epidemiological Research, University Hospital, University of São Paulo School of Medicine, São Paulo, Brazil; University of São Paulo School of Medicine, São Paulo, Brazil
| | - Michael J Blaha
- The Johns Hopkins Ciccarone Center for Prevention of Heart Disease, Baltimore, MD, USA.
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Evaluation of endothelial dysfunction in patients with nonalcoholic fatty liver disease: Association of selenoprotein P with carotid intima-media thickness and endothelium-dependent vasodilation. Clin Res Hepatol Gastroenterol 2017; 41:516-524. [PMID: 28760353 DOI: 10.1016/j.clinre.2017.01.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Revised: 01/02/2017] [Accepted: 01/13/2017] [Indexed: 02/04/2023]
Abstract
BACKGROUND In patients with NAFLD, there is an increased risk of cardiovascular disease (CVD). Selenoprotein P (SelP), a hepatokine, is associated with insulin resistance (IR) and serum SelP was found to be elevated in patients with NAFLD. AIM This study aimed to determine the risk of CVD in NAFLD patients and the association of serum SelP levels with this NAFLD related CVD risk. METHODS Ninety-three patients with NAFLD and 37 healthy controls were included in the study. Complete blood count, C-reactive protein (CRP), fasting glucose, serum lipid levels, and SelP levels were tested from fasting blood samples. Moreover, body mass index (BMI), HOMA-IR, carotid intima-media thickness (cIMT) and flow-mediated dilatation (FMD) were measured. RESULTS In patients with NAFLD, the FMD ratio was significantly lower than in controls (P=0.027). cIMT measurements were similar in both groups (P=0.996). Serum SelP levels were significantly higher than controls (P<0.001). SelP levels were significantly correlated with BMI, fasting glucose, LDL-cholesterol and HOMA-IR (r=0.395, P<0.001; r=0.322, P=0.002; r=0.353, P<0.001; r=0.521, P<0.001, respectively). Also, SelP levels were significantly lower and correlated with FMD (r=-0.674, P<0.001). SelP, ESR and CRP were significantly higher (P<0.05) and FMD ratios were significantly lower (P<0.05) in patients with nonalcoholic steatohepatitis (NASH) when compared to patients with simple steatosis. CONCLUSION These results suggest that in young NAFLD patients without additional comorbidities, there is an increased risk of CVD. FMD may be a better predictor for assessment of CVD risk when compared with cIMT. We assume that there could also be an important role of SelP in the pathogenesis of NASH.
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Cortisol/cortisone ratio and matrix metalloproteinase-9 activity are associated with pediatric primary hypertension. J Hypertens 2017; 34:1808-14. [PMID: 27488551 DOI: 10.1097/hjh.0000000000001017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVE To identify novel biomarkers associated with pediatric primary hypertension. METHODS We recruited 350 participants (4-16 years). Anthropometric parameters and aldosterone, plasma renin activity, cortisol, cortisone, Homeostasis Model Assessment Insulin Resistance (HOMA-IR), high-sensitivity C-reactive protein, adiponectin, IL-6, plasminogen activator inhibitor type 1 levels and matrix metalloproteinase-9 and matrix metalloproteinase-2 (MMP-9 and MMP-2) activities were measured. Genomic DNA was isolated. Patients with altered glucose metabolism, severe obesity [BMI-SD score (BMI-SDS) > 2.5], renovascular disease, primary aldosteronism and apparent mineralocorticoid excess syndrome were excluded. RESULTS In selected participants (n = 320), SBP was positively correlated with BMI-SDS (r = 0.382, P < 0.001), HOMA-IR (r = 0.211, P < 0.001), MMP-9 activity (r = 0.215, P < 0.001) and the cortisol/cortisone ratio (r = 0.231, P < 0.001). DBP showed similar correlations with these variables. No correlation was observed with aldosterone or plasma renin activity. Participants were categorized as hypertensive (n = 59) or nonhypertensive (n = 261). In the univariate analysis, hypertensive patients had higher BMI-SDS (P < 0.001), HOMA-IR (P < 0.001), high-sensitivity C-reactive protein (P < 0.001), MMP-9 activity (P < 0.001), plasminogen activator inhibitor type 1 (P < 0.001) and cortisol/cortisone ratio (P < 0.001) than nonhypertensive patients. Multiple regression analysis showed that the variables that remained associated with hypertension were higher BMI-SDS [odds ratio (OR) = 3.74; 95% confidence interval (CI) = 1.84-7.58], a higher cortisol/cortisone ratio (OR = 3.92; 95% CI = 1.98-7.71) and increased MMP-9 activity (OR = 4.23; 95% CI = 2.15-8.32). CONCLUSION We report that MMP-9 activity and the cortisol/cortisone ratio were higher in pediatric primary hypertensive patients, and these associations were independent of the effect of obesity. The potential role of these novel biomarkers in predicting hypertension risk and blood pressure regulation warrants further investigation.
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Melo X, Santos DA, Ornelas R, Fernhall B, Santa-Clara H, Sardinha LB. Pulse pressure tracking from adolescence to young adulthood: contributions to vascular health. Blood Press 2017; 27:19-24. [PMID: 28754066 DOI: 10.1080/08037051.2017.1360724] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
PURPOSE We examined whether exposure to high PP in adolescence predicts carotid artery intima-media thickness (IMT) and stiffness indices at young adulthood. METHODS Seventy-nine participants had their brachial systolic (SBP) and diastolic blood (DBP) pressures taken at the age of 15-16 years and later at young adulthood (29-31 years). Carotid IMT, distensibility and stiffness index β were measured at young adulthood. Linear and logistical regression analysis were performed. RESULTS PP at adolescence and at young adulthood predicted vascular health independently of sex, body mass index, and mean arterial pressure, explaining up to 37% of the variance. When analyzing its single constituents, at adolescence DBP was more predictive of vascular health, whereas DBP and SBP were equally important at young adulthood. Adolescents with high PP were at risk for increased carotid IMT (OR: 4.04-4.09), even if PP decreased at young adulthood. Young adults with high PP were at risk for increased stiffness regardless of adolescence PP (OR: 4.64-7.35). CONCLUSION PP at adolescence and young adulthood may be a better predictor of early pathological changes in carotid artery structure and stiffness. Whereas carotid IMT in young adults appears to be influenced by PP at adolescence, carotid stiffness depends primarily on current PP.
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Affiliation(s)
- Xavier Melo
- a Faculdade de Motricidade Humana, CIPER-Centro Interdisciplinar de Estudo da Performance Humana , Universidade de Lisboa , Lisboa , Portugal.,b Ginásio Clube Português , Lisboa , Portugal
| | - Diana A Santos
- a Faculdade de Motricidade Humana, CIPER-Centro Interdisciplinar de Estudo da Performance Humana , Universidade de Lisboa , Lisboa , Portugal
| | - Rui Ornelas
- a Faculdade de Motricidade Humana, CIPER-Centro Interdisciplinar de Estudo da Performance Humana , Universidade de Lisboa , Lisboa , Portugal.,c Departamento de Educação Física e Desporto , Universidade da Madeira , Funchal , Madeira
| | - Bo Fernhall
- d Integrative Physiology Laboratory, College of Applied Health Sciences , University of Illinois at Chicago , Chicago , IL , USA
| | - Helena Santa-Clara
- a Faculdade de Motricidade Humana, CIPER-Centro Interdisciplinar de Estudo da Performance Humana , Universidade de Lisboa , Lisboa , Portugal
| | - Luís B Sardinha
- a Faculdade de Motricidade Humana, CIPER-Centro Interdisciplinar de Estudo da Performance Humana , Universidade de Lisboa , Lisboa , Portugal
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Isolated Systolic Hypertension in Young Individuals: Pathophysiological Mechanisms, Prognostic Significance, and Clinical Implications. High Blood Press Cardiovasc Prev 2017; 24:133-139. [PMID: 28374153 DOI: 10.1007/s40292-017-0199-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 03/27/2017] [Indexed: 01/13/2023] Open
Abstract
Isolated systolic hypertension (ISH) is the most common form of hypertension in older persons and its predictive value for adverse outcome is well known. However, ISH can be frequently found also in young individuals, especially among males, but its prognostic significance in this setting is still controversial. Increased large artery stiffness is the main determinant of ISH in elderly patients whereas the mechanisms that lead to ISH in the young are still debated. According to some authors ISH in youth is a totally benign condition that can be called "spurious hypertension" a phenomenon due to enhanced pulse pressure amplification of the pulse wave from central to peripheral sites. According to others the main determinant of ISH in young individuals is increased sympathetic activity and the consequent hyperkinetic state characterized by elevated heart rate and stroke volume. This phenomenon is often amplified by a powerful alarm reaction to the medical visit. However, recent research has shown that ISH in the young is a heterogeneous condition and that in some individuals also increased arterial stiffness can play a role. Although ISH seems to be a benign condition chiefly in young men, only few longitudinal data assessing the association with adverse outcomes are available. Future studies with long term follow-up are needed to better understand the clinical significance of this condition.
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Mericq V, Martinez-Aguayo A, Uauy R, Iñiguez G, Van der Steen M, Hokken-Koelega A. Long-term metabolic risk among children born premature or small for gestational age. Nat Rev Endocrinol 2017; 13:50-62. [PMID: 27539244 DOI: 10.1038/nrendo.2016.127] [Citation(s) in RCA: 137] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Accumulating evidence suggests that both the intrauterine environment and growth during early life can influence the development of chronic noncommunicable diseases, such as type 2 diabetes mellitus and cardiovascular disease, in adulthood. Here, we review the available human data supporting increased metabolic risk among children born premature or small for gestational age; the adrenal and pubertal modifications that contribute to this risk; metabolic changes that occur during adolescence and early adulthood; and approaches to potentially modify or decrease risk of metabolic disease. The risks associated with delivery at term or preterm are compared for each period of life. Knowledge of these associations is fundamental for the paediatric community to develop preventive strategies early during postnatal life.
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Affiliation(s)
- Veronica Mericq
- Institute of Maternal and Child Research, University of Chile, Santiago, 8330091, Chile
| | - Alejandro Martinez-Aguayo
- Pediatrics Division, School of Medicine, Pontificia Universidad Catolica de Chile, Santiago, 8330074, Chile
| | - Ricardo Uauy
- Pediatrics Division, School of Medicine, Pontificia Universidad Catolica de Chile, Santiago, 8330074, Chile
- Institute of Nutrition and Food Technology, University of Chile, Santiago, 7810851, Chile
| | - German Iñiguez
- Institute of Maternal and Child Research, University of Chile, Santiago, 8330091, Chile
| | - Manouk Van der Steen
- Dutch Growth Research Foundation, 3001 KB Rotterdam, The Netherlands
- Department of Pediatrics, Subdivision of Endocrinology, Erasmus University Medical Center, Sophia Children's Hospital, 3000 CB Rotterdam, The Netherlands
| | - Anita Hokken-Koelega
- Dutch Growth Research Foundation, 3001 KB Rotterdam, The Netherlands
- Department of Pediatrics, Subdivision of Endocrinology, Erasmus University Medical Center, Sophia Children's Hospital, 3000 CB Rotterdam, The Netherlands
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Hao G, Wang X, Treiber FA, Davis H, Leverett S, Su S, Kapuku G. Growth of Carotid Intima-Media Thickness in Black and White Young Adults. J Am Heart Assoc 2016; 5:JAHA.116.004147. [PMID: 27998916 PMCID: PMC5210407 DOI: 10.1161/jaha.116.004147] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background There are few longitudinal studies that have comprehensively examined the intima‐media thickness (IMT) growth pattern and its determinants among racial population groups. Methods and Results Mean and maximum IMT were measured by B‐mode ultrasonography up to 3 times in 253 white and 268 black participants, aged 13 to 36 years (mean age±standard deviation 24±3.2 years old). The development of IMT was assessed using individual growth curve modeling. A total of 521 participants with 1015 IMT measurements were eligible for this study. We found higher IMT in both left and right sides in blacks compared to whites (P<0.001) in young adulthood. Both whites and blacks showed a strong linear increase in mean IMT with age. Body mass index and father's education level were associated with mean IMT, and only body mass index was associated with maximum IMT (P<0.05). We did not observe an interaction between age and race/ethnicity on the growth of IMT, suggesting that blacks and whites developed IMT in similar patterns. Interestingly, we found a faster increase in mean left‐side IMT than mean right‐side IMT (χ2=11.5, P<0.001) in both black and white subjects as well as in males and females. Conclusions Our findings provide compelling prospective evidence that blacks may have thicker IMT compared to whites as young adults. These racial differences could not be explained by traditional risk factors. This implies that differences in this precursor of atherosclerosis may explain racial disparity in cerebrovascular disease.
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Affiliation(s)
- Guang Hao
- Department of Pediatrics, Medical College of Georgia, Georgia Prevention Institute, Augusta University, Augusta, GA
| | - Xiaoling Wang
- Department of Pediatrics, Medical College of Georgia, Georgia Prevention Institute, Augusta University, Augusta, GA
| | - Frank A Treiber
- Technology Applications Center for Healthful Lifestyles, Colleges of Nursing and Medicine, Medical University of South Carolina, Charleston, SC
| | - Harry Davis
- Department of Pediatrics, Medical College of Georgia, Georgia Prevention Institute, Augusta University, Augusta, GA
| | - Sharika Leverett
- Department of Pediatrics, Medical College of Georgia, Georgia Prevention Institute, Augusta University, Augusta, GA
| | - Shaoyong Su
- Department of Pediatrics, Medical College of Georgia, Georgia Prevention Institute, Augusta University, Augusta, GA
| | - Gaston Kapuku
- Department of Pediatrics, Medical College of Georgia, Georgia Prevention Institute, Augusta University, Augusta, GA
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Magnussen CG, Smith KJ. Pediatric Blood Pressure and Adult Preclinical Markers of Cardiovascular Disease. Clin Med Insights Blood Disord 2016; 9:1-8. [PMID: 27168729 PMCID: PMC4857790 DOI: 10.4137/cmbd.s18887] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 04/06/2016] [Accepted: 04/08/2016] [Indexed: 01/27/2023]
Abstract
A high blood pressure level in adults is considered the single most important modifiable risk factor for global disease burden, especially those of cardiovascular (CV) origin such as stroke and ischemic heart disease. Because blood pressure levels have been shown to persist from childhood to adulthood, elevations in pediatric levels have been hypothesized to lead to increased CV burden in adulthood and, as such, might provide a window in the life course where primordial and primary prevention could be focused. In the absence of substantive data directly linking childhood blood pressure levels to overt adult CV disease, this review outlines the available literature that examines the association between pediatric blood pressure and adult preclinical markers of CV disease.
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Affiliation(s)
- Costan G Magnussen
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia.; Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, Finland
| | - Kylie J Smith
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia
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Kollias A, Lagou S, Zeniodi ME, Boubouchairopoulou N, Stergiou GS. Association of Central Versus Brachial Blood Pressure With Target-Organ Damage: Systematic Review and Meta-Analysis. Hypertension 2015; 67:183-90. [PMID: 26597821 DOI: 10.1161/hypertensionaha.115.06066] [Citation(s) in RCA: 195] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 10/28/2015] [Indexed: 12/27/2022]
Abstract
Accumulating evidence suggests that central blood pressure (BP) may reflect the hemodynamic stress on target organs more accurately than brachial BP. A systematic review assessing the relationship of central versus brachial BP with preclinical target-organ damage was performed. Meta-analysis of cross-sectional data showed that central compared with brachial systolic BP was more closely associated with (1) left ventricular mass index (12 studies, n=6431; weighted age [SD], 49.9 [13.1] years; 51% hypertensives): pooled correlation coefficients r=0.30; 95% confidence interval (CI), 0.23-0.37 versus r=0.26; 95% CI, 0.19-0.33, respectively; P<0.01 for difference; (2) carotid intima-media thickness (7 studies, n=6136; weighted age, 55.6 [13.2] years; 48% hypertensives): r=0.27; 95% CI, 0.19-0.34 versus r=0.23; 95% CI, 0.16-0.30, respectively; P<0.01 for difference; (3) pulse-wave velocity (14 studies, n=3699; weighted age, 53.9 [13.3] years; 53% hypertensives): r=0.42; 95% CI, 0.37-0.47 versus r=0.39; 95% CI, 0.33-0.45, respectively; P<0.01 for difference. Four studies assessing urine albumin excretion (n=3718; weighted age, 56.4 [5] years; 69% hypertensives) reported similar correlations (P=not significant) with central (r=0.22; 95% CI, 0.14-0.29) and brachial systolic BP (r=0.22; 95% CI, 0.12-0.32). Similar findings were observed for central compared with brachial pulse pressure in terms of relationship with target-organ damage. Metaregression analyses did not reveal any significant effect of age. In conclusion, central compared with brachial BP seems to be more strongly associated with most of the investigated indices of preclinical organ damage.
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Affiliation(s)
- Anastasios Kollias
- From the Third University Department of Medicine, Hypertension Center, STRIDE-7, Sotiria Hospital, Athens, Greece
| | - Styliani Lagou
- From the Third University Department of Medicine, Hypertension Center, STRIDE-7, Sotiria Hospital, Athens, Greece
| | - Maria Elena Zeniodi
- From the Third University Department of Medicine, Hypertension Center, STRIDE-7, Sotiria Hospital, Athens, Greece
| | - Nadia Boubouchairopoulou
- From the Third University Department of Medicine, Hypertension Center, STRIDE-7, Sotiria Hospital, Athens, Greece
| | - George S Stergiou
- From the Third University Department of Medicine, Hypertension Center, STRIDE-7, Sotiria Hospital, Athens, Greece.
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Clark BR, White ML, Royer NK, Burlis TL, DuPont NC, Wallendorf M, Racette SB. Obesity and Aerobic Fitness among Urban Public School Students in Elementary, Middle, and High School. PLoS One 2015; 10:e0138175. [PMID: 26378914 PMCID: PMC4574739 DOI: 10.1371/journal.pone.0138175] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 08/26/2015] [Indexed: 12/26/2022] Open
Abstract
Aims and Objectives To assess the prevalence of cardiovascular disease risk among urban public school students through a collaborative school district and university partnership. Methods Children and adolescents in grades K-12 from 24 urban public schools participated in measurements of height, weight, and other health metrics during the 2009–2010 school year. Body mass index (BMI) percentiles and z-scores were computed for 4673 students. President’s Challenge 1-mile endurance run was completed by 1075 students ages 9–19 years. Maximal oxygen consumption (⩒O2max) was predicted using an age-, sex-, and BMI-specific formula to determine health-related fitness. Resting blood pressure (BP) was assessed in 1467 students. Regression analyses were used to compare BMI z-scores, fitness, and age- and sex-specific BP percentiles across grade levels. Chi-square tests were used to explore the effect of sex and grade-level on health-related outcomes. Results Based on BMI, 19.8% were categorized as overweight and 24.4% were obese. Included in the obese category were 454 students (9.7% of sample) classified with severe obesity. Using FITNESSGRAM criteria, 50.2% of students did not achieve the Healthy Fitness Zone (HFZ); the proportion of students in the Needs Improvement categories increased from elementary to middle school to high school. Male students demonstrated higher fitness than female students, with 61.4% of boys and only 35.4% of girls meeting HFZ standards. Elevated BP was observed among 24% of 1467 students assessed. Systolic and diastolic BP z-scores revealed low correlation with BMI z-scores. Conclusions A community-university collaboration identified obesity, severe obesity, overweight, and low aerobic fitness to be common risk factors among urban public school students.
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Affiliation(s)
- B. Ruth Clark
- Program in Physical Therapy, Washington University School of Medicine in St. Louis, St. Louis, Missouri, United States of America
- * E-mail:
| | - M. Leanne White
- Saint Louis Public Schools, St. Louis, Missouri, United States of America
| | - Nathaniel K. Royer
- Program in Physical Therapy, Washington University School of Medicine in St. Louis, St. Louis, Missouri, United States of America
| | - Tamara L. Burlis
- Program in Physical Therapy, Washington University School of Medicine in St. Louis, St. Louis, Missouri, United States of America
| | - Nicholas C. DuPont
- Division of Biostatistics, Washington University School of Medicine in St. Louis, St. Louis, Missouri, United States of America
| | - Michael Wallendorf
- Division of Biostatistics, Washington University School of Medicine in St. Louis, St. Louis, Missouri, United States of America
| | - Susan B. Racette
- Program in Physical Therapy, Washington University School of Medicine in St. Louis, St. Louis, Missouri, United States of America
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Hatch J, Andreazza A, Olowoyeye O, Rezin GT, Moody A, Goldstein BI. Cardiovascular and psychiatric characteristics associated with oxidative stress markers among adolescents with bipolar disorder. J Psychosom Res 2015; 79:222-7. [PMID: 25934154 DOI: 10.1016/j.jpsychores.2015.04.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 04/08/2015] [Accepted: 04/15/2015] [Indexed: 11/16/2022]
Abstract
INTRODUCTION In the field of bipolar disorder (BD) research there is an absence of validated biomarkers and limited understanding of the biology underlying excessive and premature cardiovascular disease (CVD). Oxidative stress is a potential biomarker in both BD and CVD. OBJECTIVE To examine psychiatric and cardiovascular characteristics associated with peripheral oxidative stress markers among adolescents with BD, who are at high risk for CVD. METHODS Participants were 30 adolescents, 13-19years old, with BD and without CVD. Ultrasonography was used to evaluate vascular function and structure. Traditional CVD risk factors were also measured. Psychiatric assessments were conducted via semi-structured interview. Serum levels of oxidative stress (lipid hydroperoxides (LPH) and protein carbonylation (PC)) were assayed. RESULTS Compared to published data on adults with BD, adolescents had significantly lower levels of LPH and PC (t52(11.34), p<0.0001; t58(29.68), p<0.0001, respectively). Thicker mean and maximum carotid intima media thickness was associated with greater levels of LPH (r=.455, p=.015; r=.620, p<0.0001, respectively). LPH was associated with diastolic blood pressure (r=-.488, p=0.008) and pulse pressure (r=.543, p=0.003). Mood symptoms and medication were not significantly associated with oxidative stress. CONCLUSION Adolescents with BD have lower levels of oxidative stress compared to adults with BD, supporting prevailing illness staging theories for BD. Oxidative stress is robustly associated with a proxy measure of atherosclerosis and may explain in part the increased risk of CVD in BD.
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Affiliation(s)
- Jessica Hatch
- Sunnybrook Health Sciences Centre, Psychiatry, Toronto, ON, Canada; University of Toronto, Pharmacology & Toxicology, Toronto, ON, Canada
| | - Ana Andreazza
- University of Toronto, Psychiatry, Toronto, ON, Canada; Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - Omodele Olowoyeye
- University of Toronto, Institute of Medical Science, Toronto, ON, Canada
| | | | - Alan Moody
- Sunnybrook Health Sciences Centre, Medical Imaging, Toronto, ON, Canada
| | - Benjamin I Goldstein
- Sunnybrook Health Sciences Centre, Psychiatry, Toronto, ON, Canada; University of Toronto, Pharmacology & Toxicology, Toronto, ON, Canada.
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Dengel DR, Ryder JR. Impact of Health Status and Lifestyle Modifications on Vascular Structure and Function in Children and Adolescents. Am J Lifestyle Med 2015; 11:330-343. [PMID: 30202352 DOI: 10.1177/1559827615602226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 08/01/2015] [Accepted: 08/03/2015] [Indexed: 11/16/2022] Open
Abstract
Until recently cardiovascular disease is often thought of as a disease that manifests itself during middle age. Researchers and clinicians have begun to realize that the initial signs of cardiovascular disease begin early on in childhood with changes present in both vascular structure and function. This increased recognition has resulted in considerable effort to develop accurate and reliable methods to measure as well as track changes in vascular structure and function applicable to study this process in children and adolescents. Certain genetic abnormalities and chronic diseases, which present or emerge in childhood often result in meaningful changes to vascular structure and function, which aid in our understanding of the vascular disease process. In this review, we will discuss different methods of assessing vascular structure and function, the diseases in childhood associated with decrements and maladaptive changes in the vascular system, and whether modification of lifestyle (ie, weight loss, dietary and/or exercise changes) can affect vascular structure and function in children.
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Affiliation(s)
- Donald R Dengel
- School of Kinesiology, University of Minnesota, Minneapolis, Minnesota (DRD).,Division of Pediatrics, University of Minnesota School of Public Health, Minneapolis, Minnesota (DRD, JRR).,Division of Epidemiology & Community Health, University of Minnesota School of Public Health, Minneapolis, Minnesota (JRR)
| | - Justin R Ryder
- School of Kinesiology, University of Minnesota, Minneapolis, Minnesota (DRD).,Division of Pediatrics, University of Minnesota School of Public Health, Minneapolis, Minnesota (DRD, JRR).,Division of Epidemiology & Community Health, University of Minnesota School of Public Health, Minneapolis, Minnesota (JRR)
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18
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Santos IS, Alencar AP, Rundek T, Goulart AC, Barreto SM, Pereira AC, Benseñor IM, Lotufo PA. Low Impact of Traditional Risk Factors on Carotid Intima-Media Thickness: The ELSA-Brasil Cohort. Arterioscler Thromb Vasc Biol 2015; 35:2054-9. [PMID: 26183615 DOI: 10.1161/atvbaha.115.305765] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 07/07/2015] [Indexed: 01/13/2023]
Abstract
OBJECTIVE There is little information about how much traditional cardiovascular risk factors explain common carotid artery intima-media thickness (CCA-IMT) variance. We aimed to study to which extent CCA-IMT values are determined by traditional risk factors and which commonly used measurements of blood pressure, glucose metabolism, lipid profile, and adiposity contribute the most to this determination in the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil) cohort baseline. APPROACH AND RESULTS We analyzed 9792 individuals with complete data and CCA-IMT measurements. We built multiple linear regression models using mean left and right CCA-IMT as the dependent variable. All models were stratified by sex. We also analyzed individuals stratified by 10-year coronary heart disease risk and, in separate, those with no traditional risk factors. Main models' R(2) varied between 0.141 and 0.373. The major part of the explained variance in CCA-IMT was because of age and race. Indicators of blood pressure, lipid profile, and adiposity that most frequently composed the best models were pulse pressure, low-density lipoprotein/high-density lipoprotein ratio, and neck circumference. The association between neck circumference and CCA-IMT persisted significant even after further adjustment for vessel sizes and body mass index. Indicators of glucose metabolism had smaller contribution. CONCLUSIONS We found that >60% of CCA-IMT were not explained by demographic and traditional cardiovascular risk factors, which highlights the need to study novel risk factors. Pulse pressure, low-density lipoprotein/high-density lipoprotein ratio, and neck circumference were the most consistent contributors.
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Affiliation(s)
- Itamar S Santos
- From the Centro de Pesquisa Clínica e Epidemiológica do Hospital Universitário (I.S.S., A.C.G., I.M.B., P.A.L.), Instituto de Matemática e Estatística (A.P.A.), and Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina (A.C.P.), Universidade de São Paulo, São Paulo, Brazil; Department of Neurology, University of Miami Miller School of Medicine, FL (T.R.); and Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil (S.M.B.).
| | - Airlane P Alencar
- From the Centro de Pesquisa Clínica e Epidemiológica do Hospital Universitário (I.S.S., A.C.G., I.M.B., P.A.L.), Instituto de Matemática e Estatística (A.P.A.), and Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina (A.C.P.), Universidade de São Paulo, São Paulo, Brazil; Department of Neurology, University of Miami Miller School of Medicine, FL (T.R.); and Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil (S.M.B.)
| | - Tatjana Rundek
- From the Centro de Pesquisa Clínica e Epidemiológica do Hospital Universitário (I.S.S., A.C.G., I.M.B., P.A.L.), Instituto de Matemática e Estatística (A.P.A.), and Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina (A.C.P.), Universidade de São Paulo, São Paulo, Brazil; Department of Neurology, University of Miami Miller School of Medicine, FL (T.R.); and Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil (S.M.B.)
| | - Alessandra C Goulart
- From the Centro de Pesquisa Clínica e Epidemiológica do Hospital Universitário (I.S.S., A.C.G., I.M.B., P.A.L.), Instituto de Matemática e Estatística (A.P.A.), and Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina (A.C.P.), Universidade de São Paulo, São Paulo, Brazil; Department of Neurology, University of Miami Miller School of Medicine, FL (T.R.); and Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil (S.M.B.)
| | - Sandhi M Barreto
- From the Centro de Pesquisa Clínica e Epidemiológica do Hospital Universitário (I.S.S., A.C.G., I.M.B., P.A.L.), Instituto de Matemática e Estatística (A.P.A.), and Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina (A.C.P.), Universidade de São Paulo, São Paulo, Brazil; Department of Neurology, University of Miami Miller School of Medicine, FL (T.R.); and Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil (S.M.B.)
| | - Alexandre C Pereira
- From the Centro de Pesquisa Clínica e Epidemiológica do Hospital Universitário (I.S.S., A.C.G., I.M.B., P.A.L.), Instituto de Matemática e Estatística (A.P.A.), and Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina (A.C.P.), Universidade de São Paulo, São Paulo, Brazil; Department of Neurology, University of Miami Miller School of Medicine, FL (T.R.); and Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil (S.M.B.)
| | - Isabela M Benseñor
- From the Centro de Pesquisa Clínica e Epidemiológica do Hospital Universitário (I.S.S., A.C.G., I.M.B., P.A.L.), Instituto de Matemática e Estatística (A.P.A.), and Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina (A.C.P.), Universidade de São Paulo, São Paulo, Brazil; Department of Neurology, University of Miami Miller School of Medicine, FL (T.R.); and Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil (S.M.B.)
| | - Paulo A Lotufo
- From the Centro de Pesquisa Clínica e Epidemiológica do Hospital Universitário (I.S.S., A.C.G., I.M.B., P.A.L.), Instituto de Matemática e Estatística (A.P.A.), and Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina (A.C.P.), Universidade de São Paulo, São Paulo, Brazil; Department of Neurology, University of Miami Miller School of Medicine, FL (T.R.); and Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil (S.M.B.)
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The Impacts of Obesity and Metabolic Abnormality on Carotid Intima-Media Thickness and Non-Alcoholic Fatty Liver Disease in Children from an Inland Chinese City. J Clin Med 2014; 3:323-33. [PMID: 26237264 PMCID: PMC4449660 DOI: 10.3390/jcm3010323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Revised: 02/18/2014] [Accepted: 02/24/2014] [Indexed: 12/31/2022] Open
Abstract
The Chinese inland, where low child obesity and overweight rates were reported in earlier studies, has recently experienced rapid economy changes. This may impact children’s health. In the present study, we investigated the obesity rate, metabolic health status, and their impacts on carotid intima-media thickness (IMT) and non-alcoholic fatty liver disease (NAFLD) among children from Yueyang, an inland city of China. We found that the obesity rate was about 5% for both 7- and 11-year olds. Overweightness rates were 9.5% and 11.5% for the 7- and 11-year olds, respectively. Clinical and laboratory examinations revealed significant differences among different weight groups in the 11-year old volunteers, which were absent in the 7-year olds. Further statistical analysis showed that: age, BMI, blood pressure, triglyceride level, and metabolic abnormality were positively correlated to carotid IMT; triglyceride level, obesity, male, and the number of metabolic abnormalities were independent risk factors for NAFLD in these children. Our study suggests that: childhood overweightness and obesity are now epidemic in Yueyang, which have contributed to increased carotid IMT and may also increased NAFLD incidents; and serum triglyceride level is a critical factor in the development of childhood NAFLD. Thus, childhood metabolic health warrants further vigorous research in the inland of China.
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When to prevent cardiovascular disease? As early as possible: lessons from prospective cohorts beginning in childhood. Curr Opin Cardiol 2014; 28:561-8. [PMID: 23928921 DOI: 10.1097/hco.0b013e32836428f4] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
PURPOSE OF REVIEW To detail recent developments linking modifiable youth risk factors with preclinical markers of cardiovascular disease such as carotid artery intima-media thickness, pulse-wave velocity (PVW) and large artery stiffness, brachial artery flow-mediated dilatation, left ventricular geometry, and coronary artery calcification in adulthood. RECENT FINDINGS Population-based data from prospective cohort studies beginning in youth with follow-up into adulthood have shown that the modifiable youth risk factors of elevated blood lipids, blood pressure, and adiposity, smoking (active and passive), metabolic disorders, physical inactivity, low cardiorespiratory fitness, and diet associate with preclinical markers of cardiovascular disease in adulthood. The data suggest that, in some instances, those who amend their trajectory by not maintaining these risk factors into adulthood experience reductions in preclinical markers to levels associated with never having had the risk factor. SUMMARY Though avoidance of risk factors in youth is ideal, there is still a window for intervention where long-lasting cardiovascular effects might be avoided. Health-enhancing changes in the rates of active and passive smoking, adiposity, increased physical activity, accentuated fitness, modified diet, and socioeconomic position in the transition from youth to adulthood might be important in modifying an individual's trajectory from high risk in youth to low risk in adulthood.
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What the Long Term Cohort Studies that Began in Childhood Have Taught Us about the Origins of Coronary Heart Disease. CURRENT CARDIOVASCULAR RISK REPORTS 2014. [DOI: 10.1007/s12170-014-0373-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Lambiase MJ, Dorn J, Thurston RC, Roemmich JN. Flow-mediated dilation and exercise blood pressure in healthy adolescents. J Sci Med Sport 2013; 17:425-9. [PMID: 23809838 DOI: 10.1016/j.jsams.2013.05.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2013] [Revised: 05/17/2013] [Accepted: 05/23/2013] [Indexed: 10/26/2022]
Abstract
OBJECTIVES Exercise blood pressure is a robust predictor of cardiovascular disease risk. Endothelial dysfunction occurs early in development of cardiovascular disease and is associated with greater exercise blood pressure in adults. However, it is not yet clear whether endothelial function is associated with exercise blood pressure in youth. The purpose of this study was to examine the relationship between endothelial function, indexed by brachial artery flow-mediated dilation, and submaximal exercise blood pressure in healthy adolescents. DESIGN Cross-sectional study. METHODS Adolescents (N=45) completed a graded submaximal treadmill test. Blood pressure was measured during rest and each exercise stage. Ultrasound measurement of brachial artery flow-mediated dilation was completed on a separate visit. Pearson correlations and multiple regression were used to assess the unadjusted and multivariate adjusted associations between flow-mediated dilation and exercise blood pressure, respectively. RESULTS Lower flow-mediated dilation was associated with lower diastolic blood pressure (r=0.37, p=0.01) and greater pulse pressure (r=-0.38, p=0.01) during exercise. The significance did not change when adjusting for age, gender, fitness, or resting blood pressure. Exploratory analyses suggest that flow-mediated dilation was associated with exercise diastolic blood pressure primarily among adolescents with low resting diastolic blood pressure. CONCLUSIONS Studies in youth are important to understand the early pathogenesis of cardiovascular disease. Findings from this study suggest that endothelial function may play a role in regulating blood pressure responses during submaximal exercise in healthy adolescents.
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Affiliation(s)
- Maya J Lambiase
- Department of Psychiatry, University of Pittsburgh School of Medicine, United States; Department of Exercise and Nutrition Sciences, School of Public Health and Health Professions, University at Buffalo, United States.
| | - Joan Dorn
- Department of Exercise and Nutrition Sciences, School of Public Health and Health Professions, University at Buffalo, United States
| | - Rebecca C Thurston
- Department of Psychiatry, University of Pittsburgh School of Medicine, United States
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Skilton MR, Raitakari OT, Celermajer DS. High intake of dietary long-chain ω-3 fatty acids is associated with lower blood pressure in children born with low birth weight: NHANES 2003-2008. Hypertension 2013; 61:972-6. [PMID: 23460284 DOI: 10.1161/hypertensionaha.111.01030] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Reduced fetal growth is associated with increased systolic blood pressure. Recently, we found an inverse association between serum ω-3 fatty acids and systolic blood pressure in young adults born with impaired fetal growth. We investigated the associations of dietary intake in childhood of the long-chain ω-3 fatty acids eicosapentaenoic acid and docosahexaenoic acid with blood pressure parameters in children born with reduced birth weight. We analyzed data from 3457 children aged 8 to 15 years participating in the continuous National Health and Nutrition Examination Survey 2003-2004, 2005-2006, and 2007-2008. Dietary intake was assessed by two 24-hour dietary recalls, birth weight by questionnaire, and blood pressure was measured. Systolic blood pressure was 1.1 mm Hg higher in those with reduced (<10th centile) compared with normal birth weight (≥ 10th centile), consistent with previous findings, although not statistically significant (P=0.40); however, pulse pressure was significantly higher in these children (3.4 mm Hg). In the 354 participants with reduced birth weight, when compared with children with the lowest tertile of intake, those who had the highest tertile of dietary eicosapentaenoic acid and docosahexaenoic acid intake had significantly lower systolic blood pressure (-4.9 mm Hg [95% confidence interval, -9.7 to -0.1]) and pulse pressure (-7.7 mm Hg [95% confidence interval, -15.0 to -0.4]). High-dietary intakes of eicosapentaenoic acid and docosahexaenoic acid are associated with lower systolic blood pressure and pulse pressure in children born with reduced birth weight. These data are consistent with the hypothesis that long-chain ω-3 fatty acids reduce blood pressure in those with impaired fetal growth.
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Affiliation(s)
- Michael R Skilton
- Department of Cardiology, Royal Prince Alfred Hospital, Missenden Road, Camperdown, New South Wales 2050, Australia.
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Magnussen CG, Niinikoski H, Juonala M, Kivimäki M, Rönnemaa T, Viikari JSA, Simell O, Raitakari OT. When and how to start prevention of atherosclerosis? Lessons from the Cardiovascular Risk in the Young Finns Study and the Special Turku Coronary Risk Factor Intervention Project. Pediatr Nephrol 2012; 27:1441-52. [PMID: 21877168 DOI: 10.1007/s00467-011-1990-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Accepted: 07/21/2011] [Indexed: 12/14/2022]
Abstract
This review provides an up-to-date summary of findings from two ongoing population-based, prospective studies conducted in Finland: The Cardiovascular Risk in Young Finns Study, and the Special Turku Coronary Risk Factor Intervention Project (STRIP), which have contributed significantly to the scientific literature concerning the childhood origin of cardiovascular disease, and whether prevention efforts in adults can be expanded to young people. From the Young Finns Study, we summarize evidence demonstrating childhood risk factors to be associated with both risk factors and preclinical markers of atherosclerosis in adulthood, and from STRIP, we summarize evidence showing that supervised dietary counseling of a low saturated fat diet effectively decreases exposure to cardiovascular risk factors without affecting growth and development of healthy children and adolescents. The evidence available from these studies supports that the ability to prevent or delay the risk of premature atherosclerosis and its clinical sequelae later in life lies in maintaining a low lifetime risk by preventing the development of risk factors in early life.
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Affiliation(s)
- Costan G Magnussen
- Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku and Turku University Hospital, Kiinamyllynkatu 10, 20520, Finland, Finland
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Kerkhof GF, Breukhoven PE, Leunissen RWJ, Willemsen RH, Hokken-Koelega ACS. Does preterm birth influence cardiovascular risk in early adulthood? J Pediatr 2012; 161:390-396.e1. [PMID: 22578582 DOI: 10.1016/j.jpeds.2012.03.048] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2011] [Revised: 03/02/2012] [Accepted: 03/23/2012] [Indexed: 10/28/2022]
Abstract
OBJECTIVE To investigate the effect of preterm birth on risk factors for cardiovascular disease (CVD), independent of birth size. STUDY DESIGN Observational study using data of 406 healthy participants aged 18-24 years, from the PROgramming factors for Growth And Metabolism and Prematurity and Small for Gestational Age studies. Associations between gestational age (GA), systolic blood pressure (SBP), diastolic blood pressure (DBP), pulse pressure (PP), blood pressure variability, heart rate (HR), pulse wave velocity, and carotid intima media thickness (cIMT) were studied. To study the differential effects of preterm birth and small birth size for gestational age, these parameters were also analyzed in subgroups born either preterm or term: young adults born small for gestational age with short or normal adult stature, and young adults born appropriate for gestational age with normal adult stature. RESULTS Subjects born preterm (GA <36 weeks) had higher unadjusted SBP, PP, SBP and DBP variability, and HR, but a lower DBP than subjects born term. GA was inversely associated with SBP, PP, blood pressure variability, and HR, and positively associated with DBP, also after adjustment for confounders. There was no effect of GA on pulse wave velocity and cIMT, a marker of atherosclerosis. Of all the CVD risk factors measured, higher PP affected cIMT the most. CONCLUSIONS Young adults born preterm might have a higher risk for CVD than those born term.
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Affiliation(s)
- Gerthe F Kerkhof
- Department of Pediatrics, Subdivision of Endocrinology, Erasmus MC/Sophia Children's Hospital, Rotterdam, The Netherlands
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Krebs A, Schmidt-Trucksäss A, Doerfer J, Grulich-Henn J, Holder M, Hecker W, Krebs K, Barth M, Schwab KO. Cardiovascular risk in pediatric type 1 diabetes: sex-specific intima-media thickening verified by automatic contour identification and analyzing systems. Pediatr Diabetes 2012; 13:251-8. [PMID: 21933316 DOI: 10.1111/j.1399-5448.2011.00814.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVES To improve screening and quantification of subclinical atherosclerosis in children and adolescents with type 1 diabetes (T1D), we investigated the distribution of cardiovascular risk factors (cRFs) and carotid intima-media thickness (cIMT) percentiles with regard to sex-specific differences. METHODS This cross-sectional analysis included clinical parameters, blood lipids, and B-mode ultrasound examination of the bilateral mean cIMT using an automatic contour identification procedure combined with computerized analysis. RESULTS A total of 270 patients were eligible for evaluation (126 females, mean age 13.7 yr; 144 males, mean age 13.8 yr). In the total group, cIMT was significantly related to sex and diabetes duration but not to age. In males, cIMT was significantly higher than in females and sex-specific cIMT percentiles were calculated. Both pulse pressure and diabetes duration in boys and low-density lipoprotein (LDL)-cholesterol, hemoglobin A1c (HbA1c), and diabetes duration in girls showed a significant association with cIMT. CONCLUSIONS On the basis of sex differences of cRFs and cIMT in pediatric T1D, the assessment of sex-specific IMT percentiles facilitates a differentiated interpretation of subclinical atherosclerosis. The underlying diabetes and additional cRFs seem to be more important determinants of intima-media thickening than age. To improve the comparability of IMT measurements of relevant studies, the international harmonization of IMT measurements should be aimed for.
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Affiliation(s)
- Andreas Krebs
- Department of Pediatrics and Adolescence Medicine, University Hospital, Freiburg, Germany
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Choi DP, Lee JY, Ahn V, Kim HC. Association between Pulse Pressure and Carotid Intima-Media Thickness in Healthy Adolescents: Jangseong High School Study. ACTA ACUST UNITED AC 2012. [DOI: 10.5646/jksh.2012.18.1.29] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Dong Phil Choi
- Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Joo Young Lee
- Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Vogue Ahn
- Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Hyeon Chang Kim
- Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Korea
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Shatat IF, Flynn JT. Relationships between renin, aldosterone, and 24-hour ambulatory blood pressure in obese adolescents. Pediatr Res 2011; 69:336-40. [PMID: 21178817 DOI: 10.1203/pdr.0b013e31820bd148] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Renin-angiotensin system (RAS) activation and abnormalities of ambulatory blood pressure (ABP) are present in obesity, but relationships between components of the RAS and ABP have not been defined in the young. Anthropometric measurements and 24-h ABP were obtained on 30 obese adolescents with and without type 2 diabetes mellitus. Plasma renin activity (PRA), aldosterone, and other cardiovascular risk factors were measured. Median PRA levels were 2.5 [interquartile range (IQR), 1.7-4.1] ng/mL/h and were higher in the diabetic subjects compared with the nondiabetics. Females had significantly higher PRA than males 3.2 (IQR, 2-4.8) versus 1.8 (IQR, 1.1-2.9) ng/mL/h (p = 0.04) and were more obese. BMI Z score and PRA were significantly correlated (rho = 0.46, p < 0.001). PRA inversely correlated with 24-h systolic ABP (rho = -0.46, p = 0.02) and strongly with 24-h pulse pressure (rho = -0.61, p = 0.001). Aldosterone levels were also correlated with 24-h pulse pressure (rho = -0.46, p = 0.02). In multivariate models, lower PRA was independently associated with 24-h systolic blood pressure. In this study, PRA was positively correlated with BMI, but the relationships between components of the RAS and ABP were inverse. Further studies are needed to define the pathophysiologic relationship between RAS components and blood pressure regulation in obese youth.
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Affiliation(s)
- Ibrahim F Shatat
- Division of Pediatric Nephrology, The Medical University of South Carolina Children's Hospital, Charleston, South Carolina 29425, USA.
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Differences in left and right carotid intima-media thickness and the associated risk factors. Clin Radiol 2011; 66:393-8. [PMID: 21324442 DOI: 10.1016/j.crad.2010.12.002] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2010] [Revised: 12/17/2010] [Accepted: 12/21/2010] [Indexed: 12/29/2022]
Abstract
AIM To investigate the difference between the left and right carotid artery intima-media thickness (CIMT) with increasing age and to analyse the importance of the various risk factors associated with left and right CIMT, respectively. MATERIALS AND METHODS Four hundred and forty-seven people were assigned into six groups based on age. CIMT and haemodynamic parameters of both carotid arteries were measured using the Quality Intima-Media Thickness (QIMT) technique. In addition, biochemical and anthropometric indices were also measured. Their associations were evaluated using simple and partial correlation analysis, adjusted for age. RESULTS Bilateral CIMTs became thicker with age (p<0.001) and the left CIMT was significantly thicker compared with the right between the ages of 35 and 65 years (p=0.01-0.05). In addition, the right CIMT thickened 10 years later compared with the left. Partial correlation analysis showed that the right CIMT correlated better with haemodynamic parameters compared with the left CIMT, but the left CIMT showed better correlation with biochemical indices. CONCLUSION Haemodynamic and biochemical changes had different effects on the CIMT depending on the side affected. In addition, the left CIMT was thicker than the right between the ages of 35 and 65 years old.
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Affiliation(s)
- Florim Cuculi
- John Radcliffe Hospital, Oxford Heart Centre, Oxford, UK
| | - Paul Erne
- Luzerner Kantonsspital, Department of Cardiology, Luzern, Switzerland
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Lambiase MJ, Barry HM, Roemmich JN. Effect of a simulated active commute to school on cardiovascular stress reactivity. Med Sci Sports Exerc 2010; 42:1609-16. [PMID: 20139790 DOI: 10.1249/mss.0b013e3181d0c77b] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PURPOSE Stress-induced cardiovascular reactivity is associated with the pathogenesis of cardiovascular disease. This study tested whether a simulated active commute to school dampened cardiovascular reactivity to a cognitive stressor typical to what children might experience during school. METHODS Forty children (20 girls and 20 boys) aged 10-14 yr were randomly assigned to simulated sedentary drive-to-school or active-commute (walking) groups. The walking group completed a self-paced 1.6-km walk on a treadmill while images from a real 1.6-km walk through a pleasant neighborhood that finished at a school were projected in front of them. The drive-to-school group sat in a chair and watched the same slideshow of images of the neighborhood environment. Standardized residualized gain scores of cardiovascular reactivity during a cognitive stressor, the Stroop task, were calculated and used as dependent variables. RESULTS Children in the walking group self-selected a walking intensity of 60.6% +/- 1.6% HRmax and covered the 1.6-km distance in 21.5 +/- 0.5 min. Children in the walking group had lower HR (2 +/- 1 vs 11 +/- 1 bpm, P < 0.001), systolic blood pressure (4 +/- 1 vs 12 +/- 1 mm Hg, P < 0.001), pulse pressure (-4 +/- 1 vs 6 +/- 1 mm Hg, P < 0.001), and perceived stress (1.4 +/- 0.1 vs 3.0 +/- 0.1 cm, P < 0.001) reactivities to cognitive stress than the control group. CONCLUSIONS Active commuting to school may dampen cardiovascular reactivity and perceived stress when confronted with stressful cognitive challenges during the school day. This may help reduce the risk for cardiovascular disease later in life.
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Ambulatory arterial stiffness index, pulse pressure and pulse wave velocity in children and adolescents. Hypertens Res 2010; 33:1272-7. [PMID: 20882025 DOI: 10.1038/hr.2010.178] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Arterial stiffness, assessed by carotid-femoral pulse wave velocity (PWV) or indirectly by pulse pressure (PP) or ambulatory arterial stiffness index (AASI), is an independent predictor of cardiovascular disease in adults. However, in children limited evidence is available. This study investigated the usefulness of AASI and PP as indices of arterial stiffness in children and adolescents, by taking PWV as the reference method. Eighty-two children and adolescents (mean age 13.1±2.9 years) had 24-h ambulatory blood pressure (ABP) monitoring, PWV measurement and echocardiography. Compared with normotensives, subjects with hypertension (n=16) had higher 24-h ABP, 24-h PP and PWV, but not AASI. 24-h, PP was strongly correlated with age, weight, height, 24-h systolic ABP, PWV, left ventricular mass (LVM), LVM index, stroke volume and inversely with 24-h heart rate. AASI was also correlated with weight, height, systolic ABP and LVM, yet these associations were weaker than those of PP, and no significant correlations were found with PWV or LVM index. Moreover, closer agreement of PWV was observed with 24-h PP (71%, kappa 0.21) than with 24-h AASI (61%, kappa -0.06) in detecting subjects at the top quartile of the respective distributions. In children and adolescents, 24-h PP compared with AASI appears to be more closely associated with: (i) arterial stiffness assessed by PWV; (ii) target organ damage assessed by LVM index; and (iii) the presence of essential hypertension. These data suggest that the usefulness of AASI as an index of arterial stiffness in the pediatric population is questionable.
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