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Guide de Pratique Clinique. Prise en charge de l’hypertension artérielle chez l’adulte en Tunisie. LA TUNISIE MÉDICALE 2021. [PMCID: PMC9003593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Ce document a été réalisé dans le cadre d'une collaboration entre l'Instance Nationale de l’Évaluation et de l'Accréditation en Santé (INEAS), la Société Tunisienne de Cardiologie et de Chirurgie Cardiovasculaire (STCCCV) et la Caisse Nationale d’Assurance Maladie (CNAM).
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Seeman T, Hradský O, Gilík J. Isolated nocturnal hypertension is associated with increased left ventricular mass index in children. Pediatr Nephrol 2021; 36:1543-1550. [PMID: 33411072 DOI: 10.1007/s00467-020-04861-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 10/08/2020] [Accepted: 11/12/2020] [Indexed: 12/25/2022]
Abstract
BACKGROUND Isolated nocturnal hypertension (INH) is associated with increased prevalence of left ventricular hypertrophy (LVH) and cardiovascular morbidity and mortality in adult patients. Unlike in adults, data illustrating the possible association between INH and cardiac target organ damage is lacking in children. This study aimed to investigate whether INH is associated with increased left ventricular mass index (LVMI) and LVH in children. METHODS Retrospective data from all untreated children with confirmed ambulatory hypertension (HT) in our center was reviewed. Ambulatory blood pressure monitoring (ABPM) and echocardiography were performed concurrently. Ambulatory normotensive children served as controls. LVH was defined as LVMI ≥ 95th percentile. RESULTS There were 102 ABPM studies; of these, 79 children had renal HT, and 23 had primary HT. Median age of children was 13.2 years (3.8-18.9). Nineteen children had INH, 9 children had isolated daytime HT, 54 had daytime and nighttime HT, and 20 were normotensive. The LVMI adjusted for age (patient's LVMI/95th percentile of the LVMI) was significantly higher in children with INH than in normotensive children (0.83 ± 0.03 vs. 0.74 ± 0.03, p = 0.03). Left ventricular hypertrophy was present in 11% of children with INH; this was not significantly higher than in normotensive children (0%, p = 0.23). CONCLUSIONS This study investigated the association between INH and cardiac structure in children with primary and renal HT and showed children with INH had higher LVMI adjusted for age than normotensive children and children with INH had similar LVMI adjusted for age to children with isolated daytime HT.
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Affiliation(s)
- Tomáš Seeman
- Department of Pediatrics, University Hospital Motol, Charles University Prague, Second Faculty of Medicine, V Úvalu 84, 15006, Prague, Czech Republic. .,Biomedical Center, Faculty of Medicine in Pilsen, Charles University Prague, Pilsen, Czech Republic.
| | - Ondřej Hradský
- Department of Pediatrics, University Hospital Motol, Charles University Prague, Second Faculty of Medicine, V Úvalu 84, 15006, Prague, Czech Republic
| | - Jiří Gilík
- Kardiocentrum and Centre for Cardiovascular Research, University Hospital Motol, Prague, Czech Republic
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Lakshmanan AP, Shatat IF, Zaidan S, Jacob S, Bangarusamy DK, Al-Abduljabbar S, Al-Khalaf F, Petroviski G, Terranegra A. Bifidobacterium reduction is associated with high blood pressure in children with type 1 diabetes mellitus. Biomed Pharmacother 2021; 140:111736. [PMID: 34034069 DOI: 10.1016/j.biopha.2021.111736] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 05/04/2021] [Accepted: 05/11/2021] [Indexed: 12/15/2022] Open
Abstract
Children with Type 1 diabetes mellitus (T1DM) have an elevated risk of abnormal blood pressure (BP) measurements and patterns. Both hypertension and T1DM are well-known risk factors for cardiovascular disease and kidney failure. The human microbiome has been linked to both diabetes and hypertension, but the relationship between the gut microbiome and BP in children with T1DM is not well-understood. In this cross-sectional study, we examined the relationship between resting office BP and gut microbiota composition, diversity, and richness in children with T1DM and healthy controls. We recruited 29 pediatric subjects and divided them into three groups: healthy controls (HC, n = 5), T1DM with normal BP (T1DM-Normo, n = 17), and T1DM with elevated BP (T1DM-HBP, n = 7). We measured the BP, dietary and clinical parameters for each subject. We collected fecal samples to perform the 16s rDNA sequencing and to measure the short-chain fatty acids (SCFAs) level. The microbiome downstream analysis included the relative abundance of microbiota, alpha and beta diversity, microbial markers using Linear Discriminant effect size analysis (LEfSe), potential gut microbial metabolic pathways using Phylogenetic Investigation of Communities by Reconstruction of Unobserved States (PICRUSt) and metabolic pathways validation using Statistical Inference of Associations between Microbial Communities And host phenotype (SIAMCAT) machine learning toolbox. Our study results showed that T1DM-HBP group had distinct gut microbial composition (at multiple taxonomic levels) and reduced diversity (richness and abundance) compared with T1DM-Normo and HC groups. Children with T1DM-HBP showed a significant reduction of Bifidobacterium levels (especially B. adolescentis, B. bifidum, and B. longum) compared to the T1DM-Normo group. We also observed unique gut-microbial metabolic pathways, such as elevated lipopolysaccharide synthesis and glutathione metabolism in children with T1DM-HBP compared to T1DM-Normo children. We can conclude that the reduction in the abundance of genus Bifidobacterium could play a significant role in elevating the BP in pediatric T1DM subjects. More studies are needed to corroborate our findings and further explore the potential contributing mechanisms we describe.
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Affiliation(s)
| | - Ibrahim F Shatat
- Pediatric Nephrology and Hypertension, Sidra Medicine, HB. 7A. 106A, P.O. Box 26999, Doha, Qatar; Weill Cornell College of Medicine-Qatar, Ar-Rayyan, Doha, Qatar; Medical University of South Carolina, Charleston, SC, USA
| | - Sara Zaidan
- Research Department, Sidra Medicine, OPC, P.O. Box 26999, Doha, Qatar
| | - Shana Jacob
- Research Department, Sidra Medicine, OPC, P.O. Box 26999, Doha, Qatar
| | | | | | - Fawziya Al-Khalaf
- Pediatric Endocrinology, Sidra Medicine, OPC, P.O. Box 26999, Doha, Qatar
| | - Goran Petroviski
- Pediatric Endocrinology, Sidra Medicine, OPC, P.O. Box 26999, Doha, Qatar
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Circadian variations in blood pressure and their implications for the administration of antihypertensive drugs: is dosing in the evening better than in the morning? J Hypertens 2021; 38:1396-1406. [PMID: 32618895 DOI: 10.1097/hjh.0000000000002532] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
: Blood pressure (BP) follows a circadian rhythm with a physiological decrease during the night. Studies have demonstrated that nocturnal BP as well as its dipping pattern during night-time have a significant prognostic importance for mortality and the occurrence of cardiovascular events. Therefore, hypertension management guidelines recommend to ascertain that patients treated for hypertension have well controlled BP values around the clock. To improve hypertension control during the night and eventually further reduce cardiovascular events, it has been proposed by some to prescribe at least one antihypertensive medication at bedtime. In this review, we have examined the data which could support the benefits of prescribing BP-lowering drugs at bedtime. Our conclusion is that there is no convincing evidence that the administration of BP-lowering drugs in the evening provides any significant advantage in terms of quality of BP control, prevention of target organ damage or reduction of cardiovascular events. Before changing practice for unproven benefits, it would be wise to wait for the results of the ongoing trials that are addressing this issue.
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Stambolliu E, Kollias A, Bountzona I, Ntineri A, Servos G, Vazeou A, Stergiou GS. Nighttime Home Blood Pressure in Children: Association with Ambulatory Blood Pressure and Preclinical Organ Damage. Hypertension 2021; 77:1877-1885. [PMID: 33840203 DOI: 10.1161/hypertensionaha.121.17016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Emelina Stambolliu
- Hypertension Center STRIDE-7, National and Kapodistrian University of Athens, School of Medicine, Third Department of Medicine, Sotiria Hospital, Athens, Greece (E.S., A.K., I.B., A.N., G.S.S.)
| | - Anastasios Kollias
- Hypertension Center STRIDE-7, National and Kapodistrian University of Athens, School of Medicine, Third Department of Medicine, Sotiria Hospital, Athens, Greece (E.S., A.K., I.B., A.N., G.S.S.)
| | - Ioanna Bountzona
- Hypertension Center STRIDE-7, National and Kapodistrian University of Athens, School of Medicine, Third Department of Medicine, Sotiria Hospital, Athens, Greece (E.S., A.K., I.B., A.N., G.S.S.)
| | - Angeliki Ntineri
- Hypertension Center STRIDE-7, National and Kapodistrian University of Athens, School of Medicine, Third Department of Medicine, Sotiria Hospital, Athens, Greece (E.S., A.K., I.B., A.N., G.S.S.)
| | - George Servos
- Hypertension Center STRIDE-7, National and Kapodistrian University of Athens, School of Medicine, Third Department of Medicine, Sotiria Hospital, Athens, Greece (E.S., A.K., I.B., A.N., G.S.S.)
| | - Andriani Vazeou
- First Department of Pediatrics (A.V.), P. & A. Kyriakou Children's Hospital, Athens, Greece
| | - George S Stergiou
- Hypertension Center STRIDE-7, National and Kapodistrian University of Athens, School of Medicine, Third Department of Medicine, Sotiria Hospital, Athens, Greece (E.S., A.K., I.B., A.N., G.S.S.)
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Guo X, Liang S, Wang W, Zheng Y, Zhang C, Chen X, Cai G. Lowest nocturnal systolic blood pressure is related to heavy proteinuria and outcomes in elderly patients with chronic kidney disease. Sci Rep 2021; 11:5846. [PMID: 33712668 PMCID: PMC7955052 DOI: 10.1038/s41598-021-85071-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 02/10/2021] [Indexed: 11/16/2022] Open
Abstract
Ambulatory blood pressure monitoring (ABPM) can produce many variables, of which the lowest nocturnal systolic blood pressure (LNSBP) currently used in calculating morning surge is occasionally overlooked in recent kidney studies compared with other ABPM parameters. We explored the clinical effects of LNSBP in elderly patients with chronic kidney disease (CKD) in a multicenter, observational cohort study. A total of 356 elderly patients with CKD from 19 clinics were included in this analysis. We used multiple logistic regression and survival analyses to assess the associations between the lowest nocturnal systolic blood pressure and heavy proteinuria and kidney disease outcomes, respectively. The median age was 66 years, and 66.6% were men. The median eGFR was 49.2 ml/min/1.73 m2. Multivariate logistic regression analysis demonstrated that LNSBP (OR 1.24; 95% CI 1.10–1.39; P < 0.001; per 10 mmHg) was associated with heavy proteinuria. During the median follow-up of 23 months, 70 patients (19.7%) had a composite outcome; of these, 25 initiated dialysis, 25 had 40% eGFR loss, and 20 died. Cox analysis showed that the renal risk of LNSBP for CKD outcomes remained significant even after adjusting for background factors, including age, sex, medical history of hypertension and diabetes, smoking status, eGFR, 24-h proteinuria, and etiology of CKD (HR 1.18; 95% CI 1.06–1.32; P = 0.002; per 10 mmHg). Concentrating on LNSBP could be valuable in guiding antihypertensive treatment to control heavy proteinuria and improve renal prognosis in elderly CKD patients.
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Affiliation(s)
- Xinru Guo
- Medical School of Chinese PLA, Department of Nephrology, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Shuang Liang
- Department of Nephrology, The First Medical Centre, Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, China
| | - Wenling Wang
- Department of Nephrology, The Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Ying Zheng
- Department of Nephrology, The First Medical Centre, Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, China
| | - Chun Zhang
- Department of Nephrology, Xinjiang Armed Police Crops Hospital, Xinjiang Uygur Autonomous Region, Xinjiang, China
| | - Xiangmei Chen
- Department of Nephrology, The First Medical Centre, Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, China
| | - Guangyan Cai
- Department of Nephrology, The First Medical Centre, Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, China.
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Serum interleukin-18 levels are associated with non-dipping pattern in newly diagnosed hypertensive patients. Blood Press Monit 2021; 26:87-92. [PMID: 33038089 DOI: 10.1097/mbp.0000000000000487] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND Interleukin-18 (IL-18), a pro-inflammatory cytokine, increases inflammation in the endothelium. Increased inflammation plays an important role in the development of hypertension (HT). IL-18 level is higher in hypertensives than normotensives. OBJECTIVE To investigate the relationship between IL-18 level and diurnal blood pressure (BP) variations in newly diagnosed HT patients. METHODS This prospective study included 130 subjects referred to outpatient cardiology clinic with an initial diagnosis of HT. The patients were classified as dipper HT (n = 40), non-dipper HT (n = 50), and normotensive (control, n = 40) according to 24-hour ambulatory BP monitoring. All subjects underwent blood sampling after 12 hours of fasting and transthoracic echocardiography. RESULTS The serum IL-18 level was significantly higher in the patient group compared with the controls (195.17 ± 93.00 mg/dl vs. 140.75 ± 71.11 mg/dl, P < 0.01) and also in the non-dipper group than in the dipper group (217.3 ± 96.90 mg/dl, 167.5 ± 80.79 mg/dl, P = 0.011). IL-18 level was positively correlated both the night-time SBP and DBP levels (r = 0.29, P = 0.02 and r = 0.34, P < 0.01, respectively). On multivariate linear regression analysis, left atrium diameter, left ventricular mass index, and serum IL-18 level were independent predictors of non-dipping pattern in newly diagnosed HT patients. CONCLUSION Higher IL-18 level was particularly associated with an increase in the night-time BP levels. IL-18 can be used as a predictor for non-dipper HT in newly diagnosed HT patients.
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Homhuan W, Poomthavorn P, Paksi W, Khlairit P, Nongnuch A, Pirojsakul K. Masked hypertension and its associations with glycemic variability metrics in children and adolescents with type 1 diabetes. Pediatr Nephrol 2021; 36:379-386. [PMID: 32844291 DOI: 10.1007/s00467-020-04720-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/07/2020] [Accepted: 07/21/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Masked hypertension defined as having normal office blood pressure (BP) but hypertension detected by continuous BP monitoring has been observed in children and adolescents with type 1 diabetes (T1D). However, no study has evaluated whether masked hypertension is associated with glycemic variability (GV) in these patients. We hypothesized that masked hypertension might be associated with high GV in patients with T1D. METHODS This cross-sectional study performed continuous glucose monitoring (CGM) in parallel with ambulatory blood pressure monitoring (ABPM) in T1D patients aged 6-21 years. Patients who had known hypertension were excluded. CGM data from the same day as ABPM was calculated for GV including standard deviation (SD), coefficient of variation (CV) of glucose levels, and unstable glycemia which was defined as having a CV of glucose levels ≥ 36%. RESULTS Thirty-three patients had complete ABPM and CGM data. Mean (SD) age was 13.8 (3.8) years and mean (SD) duration of T1D was 5.4 (3.6) years. All patients had normal office BP, but ABPM showed masked hypertension in 9 patients (27%). In comparison with normotensive patients, patients with masked hypertension had longer duration of T1D (7.4 vs. 4.6 years, p = 0.049), higher insulin requirement (1.2 vs. 0.9 units/kg/day, p = 0.049), and higher SD of glucose (70.3 vs. 47.9 mg/dl, p = 0.038). Masked hypertension group had a greater number of patients (71% vs. 19%, p = 0.02) with unstable glycemia. Multivariate analysis revealed that unstable glycemia was associated with masked hypertension. CONCLUSIONS The presence of unstable glycemia in children and adolescents with T1D is associated with masked hypertension. Graphical abstract.
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Affiliation(s)
- Warinpapha Homhuan
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Preamrudee Poomthavorn
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Witchuri Paksi
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Patcharin Khlairit
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Arkom Nongnuch
- Department of Internal Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Kwanchai Pirojsakul
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand. .,Division of Nephrology, Department of Pediatrics, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
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Blázquez Gómez CJ, Alonso Rubio P, Megido Armada A, Huidobro Fernández B, Riaño Galán I. [Does ambulatory blood pressure monitoring contribute anything to clinic blood pressure in paediatric patients with type 1 diabetes?]. An Pediatr (Barc) 2021; 95:S1695-4033(20)30525-7. [PMID: 33504461 DOI: 10.1016/j.anpedi.2020.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 12/08/2020] [Accepted: 12/15/2020] [Indexed: 11/27/2022] Open
Affiliation(s)
| | - Pablo Alonso Rubio
- Servicio de Pediatría, Hospital Universitario Marqués de Valdecilla, Santander, Cantabria, España
| | - Alba Megido Armada
- AGC de Pediatría, Hospital Universitario Central de Asturias, Oviedo, Asturias, España
| | | | - Isolina Riaño Galán
- AGC de Pediatría, Hospital Universitario Central de Asturias, Oviedo, Asturias, España; IUOPA-Departamento de Medicina-ISPA, Universidad de Oviedo, CIBERESP, Oviedad, Asturias, España
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Mamilly L, Mastrandrea LD, Mosquera Vasquez C, Klamer B, Kallash M, Aldughiem A. Evidence of Early Diabetic Nephropathy in Pediatric Type 1 Diabetes. Front Endocrinol (Lausanne) 2021; 12:669954. [PMID: 33995287 PMCID: PMC8113955 DOI: 10.3389/fendo.2021.669954] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 03/10/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Diabetic nephropathy (DN) is one of the most common microvascular complications in type 1 diabetes Mellitus (T1D). Urinary markers of renal damage or oxidative stress may signal early stages of DN. The association of these markers with blood pressure (BP) patterns and glycemic variability (GV) in children is yet to be explored. METHODS Subjects between the ages of 10 and 21 years with T1D were enrolled. Continuous glucose monitoring (CGM) and ambulatory blood pressure monitoring (ABPM) were performed on each subject. Urine samples were collected and analyzed for albumin, creatinine, neutrophil gelatinase-associated lipocalin (NGAL) and pentosidine. RESULTS The study included 21 subjects (62% female) with median age of 16.8 (IQR: 14.5, 18.9). Median HbA1C was 8.4 (IQR: 7.5, 9.3). While microalbuminuria was negative in all but one case (4.8%), urinary NGAL/Cr and pentosidine/Cr ratios were significantly elevated (P<0.001) in diabetic patients despite having normal microalbuminuria, and they correlated significantly with level of microalbumin/Cr (r=0.56 [CI: 0.17, 0.8] and r=0.79 [CI: 0.54, 0.91], respectively). Using ABPM, none had hypertension, however, poor nocturnal systolic BP dipping was found in 48% of cases (95% CI: 28-68%). Urinary NGAL/Cr negatively correlated with nocturnal SBP dipping (r=-0.47, CI: -0.76, -0.03). Urine NGAL/Cr also showed a significant negative correlation with HbA1c measurements, mean blood glucose, and high blood glucose index (r=-0.51 [CI: -0.78, -0.09], r=-0.45 [CI: -0.74, -0.03], and r=-0.51 [CI: -0.77, -0.1], respectively). Median urinary NGAL/Cr and pentosidine/Cr ratios were higher in the high GV group but were not significantly different. DISCUSSION This pilot study explores the role of ABPM and urinary markers of tubular health and oxidative stress in early detection of diabetic nephropathy. GV may play a role in the process of this diabetic complication.
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Affiliation(s)
- Leena Mamilly
- Section of Pediatric Endocrinology, Nationwide Children’s Hospital, The Ohio State University College of Medicine, Columbus, OH, United States
- *Correspondence: Leena Mamilly,
| | - Lucy D. Mastrandrea
- Division of Endocrinology/Diabetes, UBMD Pediatrics and University at Buffalo/Oishei Children’s Hospital of Buffalo, NY, United States
| | - Claudia Mosquera Vasquez
- Section of Pediatrics, Nationwide Children’s Hospital, The Ohio State University College of Medicine, Columbus, OH, United States
| | - Brett Klamer
- Biostatistics Resource at Nationwide Children’s Hospital, Nationwide Children’s Hospital, Columbus, OH, United States
- Section of Pediatric Nephrology, Nationwide Children’s Hospital, The Ohio State University College of Medicine, Columbus, OH, United States
| | - Mahmoud Kallash
- Section of Pediatric Nephrology, Nationwide Children’s Hospital, The Ohio State University College of Medicine, Columbus, OH, United States
| | - Ahmad Aldughiem
- Section of Pediatric Nephrology, Dayton Children’s Hospital, Dayton, OH, United States
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Ivy JR, Bailey MA. Nondipping Blood Pressure: Predictive or Reactive Failure of Renal Sodium Handling? Physiology (Bethesda) 2021; 36:21-34. [PMID: 33325814 DOI: 10.1152/physiol.00024.2020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Blood pressure follows a daily rhythm, dipping during nocturnal sleep in humans. Attenuation of this dip (nondipping) is associated with increased risk of cardiovascular disease. Renal control of sodium homeostasis is essential for long-term blood pressure control. Sodium reabsorption and excretion have rhythms that rely on predictive/circadian as well as reactive adaptations. We explore how these rhythms might contribute to blood pressure rhythm in health and disease.
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Affiliation(s)
- Jessica R Ivy
- University/BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, The University of Edinburgh, Edinburgh, United Kingdom
| | - Matthew A Bailey
- University/BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, The University of Edinburgh, Edinburgh, United Kingdom
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Ramaphane T, Gezmu AM, Tefera E, Gabaitiri L, Nchingane S, Matsheng-Samuel M, Joel D. Prevalence and Factors Associated with Microalbuminuria in Pediatric Patients with Type 1 Diabetes Mellitus at a Large Tertiary-Level Hospital in Botswana. Diabetes Metab Syndr Obes 2021; 14:4415-4422. [PMID: 34754207 PMCID: PMC8572018 DOI: 10.2147/dmso.s322847] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 10/16/2021] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION Microalbuminuria is considered the earliest sign of diabetic nephropathy among patients with type 1 diabetes mellitus (T1DM). The prevalence of microalbuminuria among African children with T1DM is reported to be high, yet its prevalence and population-specific risk factors in Botswana are not known. AIM This study aimed to determine the prevalence of microalbuminuria among children and young adults with T1DM in Botswana and identify factors associated with microalbuminuria in this population. METHODS A retrospective cross-sectional study was conducted on 127 T1DM patients aged <24 years followed at a pediatric endocrinology clinic in Botswana from 2010 to 2017. Clinical, laboratory, and demographic data were collected using chart review and patient surveys. Descriptive statistics were reported as mean and standard deviation for continuous variables, and frequency and percentage for categorical variables. Prevalence of microalbuminuria was calculated as a simple proportion. Group comparison was done using two-sample independent t-test, X 2-test, or Fisher's exact test and logistic regression to assess for associations. Level of significance was set at p<0.05. RESULTS There were a total of 71 (55.9%) females. The mean age was 18.7 (±5) years and mean duration of T1DM was 6.6 (±4.6) years. Most study participants were of African descent. The prevalence of microalbuminuria was 28.3%. Group comparison revealed gender (p= 0.040), duration of diabetes (p= 0.002), systolic blood pressure (p=0.003), baseline glycated hemoglobin (HbA1c) (p=0.009) and Tanner's stage (p=008) to be significantly associated with microalbuminuria. On binary logistic regression, only gender (p=0.039) and baseline HbA1c (p=0.039) were independently associated with the presences of microalbuminuria. CONCLUSION This study identified a high prevalence of microalbuminuria among children and young adults with T1DM in Botswana and reaffirms the importance of early detection, glycemic control, and regular screening to prevent diabetic nephropathy.
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Affiliation(s)
- Tshireletso Ramaphane
- Department of Pediatrics and Adolescent Health, Faculty of Medicine, University of Botswana, Gaborone, Botswana
| | - Alemayehu M Gezmu
- Department of Pediatrics and Adolescent Health, Faculty of Medicine, University of Botswana, Gaborone, Botswana
- Correspondence: Alemayehu M Gezmu Department of Pediatrics and Adolescent Health, Faculty of Medicine, University of Botswana, Bag UB00713, Gaborone, Botswana Email
| | - Endale Tefera
- Department of Pediatrics and Adolescent Health, Faculty of Medicine, University of Botswana, Gaborone, Botswana
| | - Lesego Gabaitiri
- Department of Statistics, Faculty of Social Sciences, University of Botswana, Gaborone, Botswana
| | | | | | - Dipesalema Joel
- Department of Pediatrics and Adolescent Health, Faculty of Medicine, University of Botswana, Gaborone, Botswana
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Hill AM, Crislip GR, Stowie A, Ellis I, Ramsey A, Castanon-Cervantes O, Gumz ML, Davidson AJ. Environmental circadian disruption suppresses rhythms in kidney function and accelerates excretion of renal injury markers in urine of male hypertensive rats. Am J Physiol Renal Physiol 2020; 320:F224-F233. [PMID: 33356955 DOI: 10.1152/ajprenal.00421.2020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Nontraditional work schedules, such as shift work, have been associated with numerous health issues, including cardiovascular and metabolic disease. These work schedules can chronically misalign environmental timing cues with internal circadian clock systems in the brain and in peripheral organs, leading to dysfunction of those systems and their associated biological processes. Environmental circadian disruption in the kidney may be an important factor in the increased incidence of hypertension and adverse health outcomes in human shift workers. The relationship between renal rhythmicity and injury resilience is not well understood, especially in the context of environmental, rather than genetic, manipulations of the circadian system. We conducted a longitudinal study to determine whether chronic shifting of the light cycle that mimics shift work schedules would disrupt output rhythms of the kidney and accelerate kidney injury in salt-loaded male spontaneously hypertensive, stroke-prone rats. We observed that chronic shifting of the light-dark (LD) cycle misaligned and decreased the amplitude of urinary volume rhythms as the kidney phase-shifted to match each new lighting cycle. This schedule also accelerated glomerular and tubular injury marker excretion, as quantified by nephrin and KIM-1 compared with rats kept in a static LD cycle. These data suggest that disrupted rhythms in the kidney may decrease resilience and contribute to disease development in systems dependent on renal and cardiovascular functions.
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Affiliation(s)
- Atlantis M Hill
- Department of Neurobiology, Neuroscience Institute, Morehouse School of Medicine, Atlanta, Georgia
| | - G Ryan Crislip
- Division of Nephrology, Hypertension, and Renal Transplantation, Department of Medicine, University of Florida, Gainesville, Florida
| | - Adam Stowie
- Department of Neurobiology, Neuroscience Institute, Morehouse School of Medicine, Atlanta, Georgia
| | - Ivory Ellis
- Department of Neurobiology, Neuroscience Institute, Morehouse School of Medicine, Atlanta, Georgia
| | - Anne Ramsey
- Department of Neurobiology, Neuroscience Institute, Morehouse School of Medicine, Atlanta, Georgia
| | - Oscar Castanon-Cervantes
- Department of Neurobiology, Neuroscience Institute, Morehouse School of Medicine, Atlanta, Georgia
| | - Michelle L Gumz
- Division of Nephrology, Hypertension, and Renal Transplantation, Department of Medicine, University of Florida, Gainesville, Florida
| | - Alec J Davidson
- Department of Neurobiology, Neuroscience Institute, Morehouse School of Medicine, Atlanta, Georgia
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Chrysaidou K, Chainoglou A, Karava V, Dotis J, Printza N, Stabouli S. Secondary Hypertension in Children and Adolescents: Novel Insights. Curr Hypertens Rev 2020; 16:37-44. [PMID: 31038068 DOI: 10.2174/1573402115666190416152820] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 03/31/2019] [Accepted: 04/01/2019] [Indexed: 12/25/2022]
Abstract
Hypertension is a significant risk factor for cardiovascular morbidity and mortality, not only in adults, but in youths also, as it is associated with long-term negative health effects. The predominant type of hypertension in children is the secondary hypertension, with the chronic kidney disease being the most common cause, however, nowadays, there is a rising incidence of primary hypertension due to the rising incidence of obesity in children. Although office blood pressure has guided patient management for many years, ambulatory blood pressure monitoring provides useful information, facilitates the diagnosis and management of hypertension in children and adolescents, by monitoring treatment and evaluation for secondary causes or specific phenotypes of hypertension. In the field of secondary hypertension, there are numerous studies, which have reported a strong association between different determinants of 24-hour blood pressure profile and the underlying cause. In addition, in children with secondary hypertension, ambulatory blood pressure monitoring parameters offer the unique advantage to identify pediatric low- and high-risk children for target organ damage. Novel insights in the pathogenesis of hypertension, including the role of perinatal factors or new cardiovascular biomarkers, such as fibroblast growth factor 23, need to be further evaluated in the near future.
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Affiliation(s)
- Katerina Chrysaidou
- 1st Department of Pediatrics, Aristotle University Thessaloniki, Hippokratio General Hospital, Thessaloniki, Greece
| | - Athanasia Chainoglou
- 1st Department of Pediatrics, Aristotle University Thessaloniki, Hippokratio General Hospital, Thessaloniki, Greece
| | - Vasiliki Karava
- 1st Department of Pediatrics, Aristotle University Thessaloniki, Hippokratio General Hospital, Thessaloniki, Greece
| | - John Dotis
- 1st Department of Pediatrics, Aristotle University Thessaloniki, Hippokratio General Hospital, Thessaloniki, Greece
| | - Nikoleta Printza
- 1st Department of Pediatrics, Aristotle University Thessaloniki, Hippokratio General Hospital, Thessaloniki, Greece
| | - Stella Stabouli
- 1st Department of Pediatrics, Aristotle University Thessaloniki, Hippokratio General Hospital, Thessaloniki, Greece
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65
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Jhee JH, Nam BY, Lee CJ, Park JT, Han SH, Kang SW, Park S, Yoo TH. Soluble Urokinase-Type Plasminogen Activator Receptor, Changes of 24-Hour Blood Pressure, and Progression of Chronic Kidney Disease. J Am Heart Assoc 2020; 10:e017225. [PMID: 33325248 PMCID: PMC7955457 DOI: 10.1161/jaha.120.017225] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Background Soluble urokinase‐type plasminogen activator receptor (suPAR) is associated with cardiovascular risks and poor renal outcomes. However, whether elevated suPAR levels are associated with 24‐hour blood pressure patterns or kidney disease progression in patients with chronic kidney disease (CKD) is unclear. Methods and Results A total of 751 patients with CKD stage 1 to 5 were recruited from CMERC‐HI (Cardiovascular and Metabolic Disease Etiology Research Center–High Risk) cohort study (2013–2018). The relationship of serum suPAR levels to 24‐hour blood pressure parameters and CKD progression was analyzed. The median serum suPAR level was 1439.0 (interquartile range, 1026.2–2150.1) pg/mL, and the mean estimated glomerular filtration rate was 52.8±28.5 mL/min per 1.73 m2 at baseline. Patients with higher suPAR levels had significantly higher levels of office, 24‐hour, daytime, and nighttime systolic blood pressure and nighttime diastolic blood pressure than those with lower suPAR levels. The highest suPAR tertile was associated with an increased risk of a reverse dipping pattern (odds ratio, 2.93; 95% CI, 1.27–6.76; P=0.01). During a follow‐up of 43.2 (interquartile range, 27.0–55.6) months, the CKD progression occurred in 271 (36.1%) patients. The highest suPAR tertile was significantly associated with higher risk of CKD progression than the lowest tertile (hazard ratio [HR], 2.09; 95% CI, 1.37–3.21; P=0.001). When the relationship was reevaluated with respect to each dipping pattern (dipper, extreme dipper, nondipper, and reverse dipper), this association was consistent only in reverse dippers in whom the risk of CKD progression increased (HR, 1.43; 95% CI, 1.02–2.01; P=0.03) with every 1‐unit increase in serum suPAR levels. Conclusions Elevated suPAR levels are independently associated with CKD progression, and this association is prominent in reverse dippers.
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Affiliation(s)
- Jong Hyun Jhee
- Division of Nephrology Department of Internal Medicine Gangnam Severance HospitalYonsei University College of Medicine Seoul Korea
| | - Bo Young Nam
- Department of Internal Medicine College of Medicine Severance Biomedical Science Institute Brain Korea 21 PLUS Yonsei University Seoul Korea
| | - Chan Joo Lee
- Division of Cardiology Severance Cardiovascular Hospital and Severance Cardiovascular Hospital and Integrated Research Center for Cerebrovascular and Cardiovascular Diseases Yonsei University College of Medicine Seoul Korea
| | - Jung Tak Park
- Department of Internal Medicine College of Medicine Institute of Kidney Disease Research Yonsei University Seoul Korea
| | - Seung Hyeok Han
- Department of Internal Medicine College of Medicine Institute of Kidney Disease Research Yonsei University Seoul Korea
| | - Shin-Wook Kang
- Department of Internal Medicine College of Medicine Severance Biomedical Science Institute Brain Korea 21 PLUS Yonsei University Seoul Korea.,Department of Internal Medicine College of Medicine Institute of Kidney Disease Research Yonsei University Seoul Korea
| | - Sungha Park
- Division of Cardiology Severance Cardiovascular Hospital and Severance Cardiovascular Hospital and Integrated Research Center for Cerebrovascular and Cardiovascular Diseases Yonsei University College of Medicine Seoul Korea
| | - Tae-Hyun Yoo
- Department of Internal Medicine College of Medicine Institute of Kidney Disease Research Yonsei University Seoul Korea
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Nolde JM, Kiuchi MG, Carnagarin R, Frost S, Kannenkeril D, Lugo‐Gavidia LM, Chan J, Joyson A, Matthews VB, Herat LY, Azzam O, Schlaich MP. Supine blood pressure—A clinically relevant determinant of vascular target organ damage in hypertensive patients. J Clin Hypertens (Greenwich) 2020; 23:44-52. [PMID: 33270963 PMCID: PMC8030041 DOI: 10.1111/jch.14114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/10/2020] [Accepted: 11/11/2020] [Indexed: 11/29/2022]
Abstract
Night‐time blood pressure (BP) is an important predictor of cardiovascular outcomes. Its assessment, however, remains challenging due to limited accessibility to ambulatory BP devices in many settings, costs, and other factors. We hypothesized that BP measured in a supine position during daytime may perform similarly to night‐time BP when modeling their association with vascular hypertension‐mediated organ damage (HMOD). Data from 165 hypertensive patients were used who as part of their routine clinic workup had a series of standardized BP measurements including seated attended office, seated and supine unattended office, and ambulatory BP monitoring. HMOD was determined by assessment of kidney function and pulse wave velocity. Correlation analysis was carried out, and univariate and multivariate models were fitted to assess the extent of shared variance between the BP modalities and their individual and shared contribution to HMOD variables. Of all standard non‐24‐hour systolic BP assessments, supine systolic BP shared the highest degree of variance with systolic night‐time BP. In univariate analysis, both systolic supine and night‐time BP were strong determinants of HMOD variables. In multivariate models, supine BP outperformed night‐time BP as the most significant determinant of HMOD. These findings indicate that supine BP may not only be a clinically useful surrogate for night‐time BP when ambulatory BP monitoring is not available, but also highlights the possibility that unattended supine BP may be more closely related to HMOD than other BP measurement modalities, a proposition that requires further investigations in prospective studies.
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Affiliation(s)
- Janis M. Nolde
- Dobney Hypertension Centre School of Medicine ‐ Royal Perth Hospital Unit Faculty of Medicine Dentistry & Health Sciences The University of Western Australia Perth WA Australia
| | - Márcio Galindo Kiuchi
- Dobney Hypertension Centre School of Medicine ‐ Royal Perth Hospital Unit Faculty of Medicine Dentistry & Health Sciences The University of Western Australia Perth WA Australia
| | - Revathy Carnagarin
- Dobney Hypertension Centre School of Medicine ‐ Royal Perth Hospital Unit Faculty of Medicine Dentistry & Health Sciences The University of Western Australia Perth WA Australia
| | - Shaun Frost
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Perth WA Australia
| | - Dennis Kannenkeril
- Dobney Hypertension Centre School of Medicine ‐ Royal Perth Hospital Unit Faculty of Medicine Dentistry & Health Sciences The University of Western Australia Perth WA Australia
- Department of Nephrology and Hypertension University Hospital Erlangen Friedrich‐Alexander‐University Erlangen‐Nürnberg (FAU) Erlangen Germany
| | - Leslie Marisol Lugo‐Gavidia
- Dobney Hypertension Centre School of Medicine ‐ Royal Perth Hospital Unit Faculty of Medicine Dentistry & Health Sciences The University of Western Australia Perth WA Australia
| | - Justine Chan
- Dobney Hypertension Centre School of Medicine ‐ Royal Perth Hospital Unit Faculty of Medicine Dentistry & Health Sciences The University of Western Australia Perth WA Australia
| | - Anu Joyson
- Dobney Hypertension Centre School of Medicine ‐ Royal Perth Hospital Unit Faculty of Medicine Dentistry & Health Sciences The University of Western Australia Perth WA Australia
| | - Vance B. Matthews
- Dobney Hypertension Centre School of Medicine ‐ Royal Perth Hospital Unit Faculty of Medicine Dentistry & Health Sciences The University of Western Australia Perth WA Australia
| | - Lakshini Y. Herat
- Dobney Hypertension Centre School of Medicine ‐ Royal Perth Hospital Unit Faculty of Medicine Dentistry & Health Sciences The University of Western Australia Perth WA Australia
| | - Omar Azzam
- Dobney Hypertension Centre School of Medicine ‐ Royal Perth Hospital Unit Faculty of Medicine Dentistry & Health Sciences The University of Western Australia Perth WA Australia
| | - Markus P. Schlaich
- Dobney Hypertension Centre School of Medicine ‐ Royal Perth Hospital Unit Faculty of Medicine Dentistry & Health Sciences The University of Western Australia Perth WA Australia
- Departments of Cardiology and Nephrology Royal Perth Hospital Perth WA Australia
- Neurovascular Hypertension & Kidney Disease Laboratory Baker Heart and Diabetes Institute Melbourne Vic. Australia
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Gerasimidi-Vazeou A, Birkebaek NH, Iotova V, Cherubini V, Piccini B, Biester T, Stipancic G, Jefferies C, Maffeis C, Stergiou GS. Blood pressure measurement methodology and technology in the SWEET diabetes centers: An international SWEET database survey. Pediatr Diabetes 2020; 21:1537-1545. [PMID: 32902910 DOI: 10.1111/pedi.13114] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 07/28/2020] [Accepted: 08/28/2020] [Indexed: 01/13/2023] Open
Abstract
INTRODUCTION The accuracy of blood pressure (BP) measurement is a prerequisite for the reliable diagnosis and management of hypertension. OBJECTIVES This survey evaluated the use of office and out-of-office BP measurements and the antihypertensive pharmacological treatment in expert pediatric diabetes centers. METHODS A questionnaire was distributed in 78 reference pediatric diabetes centers of the SWEET international consortium. The methodology, devices, indications, and interpretation of office BP measurements (OBPM), 24-hour ambulatory BP monitoring (ABPM) and home BP monitoring (HBPM), and the preference for antihypertensive drug treatment was assessed. A grading score was developed to evaluate centers for overall BP measurement performance. RESULTS Fifty-two centers responded. The average score for OBPM methodology was 72.5%, for technology 77.5% and the overall center score was 74.75%.The majority of the centers used appropriate methodology and technology, however, there was heterogeneity among them. Manual auscultatory or automated devices specifically validated for children were used by 26/52 centers. ABPM was recommended by 35/52 centers (27/35 had health insurance coverage) and HBPM by 18/52 centers. The BP measurement methodology and devices used for ABPM and HBPM were frequently inadequate. Angiotensin converting enzyme inhibitors were the most frequently prescribed drugs for treating hypertension. CONCLUSIONS The majority of SWEET pediatric diabetes centers use adequate methodology and devices for BP measurement. ABPM is recommended by two thirds of the centers, whereas HBPM is less widely used. Further improvement in the quality of office and out-of-office BP measurements and harmonization among centers is necessary according to current guidelines.
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Affiliation(s)
| | - Niels H Birkebaek
- Department of Pediatrics and Steno Diabetes Center Aarhus, Aarhus Universitetshospital, Aarhus, Denmark
| | - Violeta Iotova
- Department of Pediatrics, Medical University of Varna, Varna, Bulgaria
| | - Valentino Cherubini
- Department of Women's and Children's Health Azienda Ospedaliero-Universitaria, Ospedali Riuniti di Ancona, G. Salesi Children's Hospital, Ancona, Italy
| | - Barbara Piccini
- Diabetology Unit, Fl, Meyer Children's Hospital, Florence, Italy
| | - Torben Biester
- Diabetes Center for Children and Adolescents, Children's Hospital, AUF DER BULT, Hannover, Germany
| | - Gordana Stipancic
- Department of Pediatrics, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia
| | | | - Claudio Maffeis
- Pediatric Diabetes and Metabolic Disorders Unit,University of Verona, University City Hospital, Verona, Italy
| | - George S Stergiou
- Hypertension Center STRIDE-7, School of Medicine, Third Department of Medicine, Sotiria Hospital, National and Kapodistrian University of Athens, Athens, Greece
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Efficacy of single-dose cholecalciferol in the blood pressure of patients with type 2 diabetes, hypertension and hypovitaminoses D. Sci Rep 2020; 10:19611. [PMID: 33184328 PMCID: PMC7665034 DOI: 10.1038/s41598-020-76646-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 10/21/2020] [Indexed: 12/29/2022] Open
Abstract
Observational and experimental data reinforce the concept that vitamin D is associated with the pathogenesis of arterial hypertension. We investigated the effect of a single dose of 100,000 IU of cholecalciferol, in office blood pressure (BP), and 24-h ambulatory blood pressure monitoring (ABPM) in patients with type 2 diabetes mellitus (DM), hypertension, and hypovitaminosis D. Forty-three patients were randomized to a placebo or cholecalciferol group. BP was assessed by office measurements and 24-h ABPM, before and after intervention. At week 8, a greater decrease in median ABPM values was observed in cholecalciferol supplementation than in the placebo group for systolic 24-h (− 7.5 vs. − 1; P = 0.02), systolic daytime (− 7 vs. − 1; P = 0.007), systolic nighttime (− 7.0 vs. 3; P = 0.009), diastolic 24-h (− 3.5 vs. − 1; P = 0.037), and daytime DBP (− 5 vs. 0; P = 0.01). Office DBP was also reduced after vitamin D supplementation. A single dose of vitamin D3 improves BP in patients with type 2 diabetes, hypertension, and vitamin D insufficiency, regardless of vitamin D normalization. Vitamin D supplementation could be a valuable tool to treat patients with type 2 DM, hypertension, and hypovitaminosis D. Trial registration: Clinicaltrials.gov NCT 02204527.
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69
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Practical application of ABPM in the pediatric nephrology clinic. Pediatr Nephrol 2020; 35:2067-2076. [PMID: 31732802 DOI: 10.1007/s00467-019-04361-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 08/07/2019] [Accepted: 09/06/2019] [Indexed: 12/26/2022]
Abstract
The use of 24-h ABPM has become commonplace when diagnosing and managing hypertension in the pediatric population. Multiple clinical guidelines recommend ABPM as the preferred method for identifying white-coat hypertension, masked hypertension, and determining degree of blood pressure (BP) control. Accurate, timely diagnosis and optimal management are particularly important in certain populations, such as children with chronic kidney disease (CKD), diabetes, and other conditions with increased risk for cardiovascular disease. Understanding how best to utilize ABPM to achieve these goals is important for pediatric nephrologists and other hypertension specialists. This review will provide practical information on the equipment, application, interpretation, and documentation of ABPM in the specialty clinic.
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70
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Gourgari E, Mete M, Dimatulac M, Cogen F, Brady T. Blood pressure during sleep is associated with arterial stiffness and urine microalbumin to creatinine ratio in youth with type 1 diabetes. J Diabetes Complications 2020; 34:107678. [PMID: 32718559 PMCID: PMC8893963 DOI: 10.1016/j.jdiacomp.2020.107678] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 06/30/2020] [Accepted: 07/13/2020] [Indexed: 11/23/2022]
Abstract
AIMS To determine whether sleep blood pressure (BP) is associated with increased cardiovascular disease (CVD) risk in youth with type 1 diabetes (T1DM). METHODS We enrolled youth with T1DM, 12-21 years old. Carotid-femoral Pulse Wave Velocity (PWVcf) assessed arterial stiffness, a CVD marker. Sleep systolic and diastolic BP variables were obtained from 24-hour BP Monitoring. Linear regression models analyzed the relationship of each BP variable with PWVcf, adjusted for HbA1c. Correlation of sleep BP with urine microalbumin-to-creatinine ratio (UAC) was examined. RESULTS Nocturnal hypertension was found in 36% and abnormal dipping in 48% of the 25 participants, aged 17.7 ± 2.2 years old. Sleep systolic BP [beta = 0.039, 95% Confidence Interval (CI; 0.006-0.073)], diastolic BP [beta = 0.058, 95% CI (0.003-0.114)], Mean Arterial Pressure (MAP) [beta = 0.075, 95% CI (0.018-0.131)] and MAP index [beta = 3.547, 95% CI (0.867-6.227)] were significantly associated with PWVcf. Sleep diastolic BP, load, MAP correlated with UAC. CONCLUSIONS Blood pressure alterations during sleep are common in youth with T1DM and they are associated with arterial stiffness and UAC. Larger studies are needed to confirm our results and examine whether interventions that target sleep and night-time BP could decrease CVD risk.
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Affiliation(s)
- Evgenia Gourgari
- Division of Pediatric Endocrinology, Department of Pediatrics, Georgetown University, Washington, DC, United States of America.
| | - Mihriye Mete
- MedStar Health Research Institute, Hyattsville, MD, United States of America
| | - Margarita Dimatulac
- Division of Pediatric Endocrinology, Department of Pediatrics, Children's National Health Systems, George Washington University, Washington, DC, United States of America
| | - Fran Cogen
- Clinical Research Unit, Georgetown University, Washington, DC, United States of America
| | - Tammy Brady
- Division of Pediatric Nephrology, Department of Pediatrics, John Hopkins University, Baltimore, MD, United States of America
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71
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Carranza-Leon DA, Oeser A, Wu Q, Stein CM, Ormseth MJ, Chung CP. Ambulatory blood pressure in patients with systemic lupus erythematosus: Association with markers of immune activation. Lupus 2020; 29:1683-1690. [PMID: 32842866 PMCID: PMC7642148 DOI: 10.1177/0961203320951274] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Objectives: Ambulatory blood pressure monitoring measures 24-hour blood pressure, night-time blood pressure, and impaired dipping of nocturnal blood pressure, parameters that better predict cardiovascular risk than standard office blood pressure measurements. Systemic lupus erythematosus is characterized by immune system hyperactivity, elevated cardiovascular risk and high prevalence of hypertension; however, little is known about ambulatory blood pressure in lupus patients and its relationship to immune activation. Methods: We studied 26 patients with lupus and 26 control subjects. We obtained ambulatory 24-hour blood pressure measurements and report plasma concentrations of 77 markers of immune activation using a multiplex immunoassay and assessed their association with blood pressure measurements. Results: Despite similar office blood pressure measurements in patients with lupus and controls, lupus patients had higher 24-hour systolic [median (interquartile range) 129 (113 - 140) vs. 116 (111 - 121) mmHg, p = 0.03] and diastolic blood pressure [80 (69 - 86) vs. 72 (64 - 75) mmHg, p = 0.006] as well as less nocturnal dipping [7.8% (5.1 - 14.2%) vs. 12.0% (8.1 20.0%)] p = 0.03], compared to controls. In patients with lupus, markers of the innate (monocyte chemotactic protein-3) and adaptive immune systems [CUB domain-containing protein-1 and Interleukin-15 receptor subunit-α,] were associated with nocturnal blood pressure measurements and attenuated nocturnal dipping. In conclusion, 24-hour systolic and diastolic blood pressure was higher and nocturnal blood pressure dipping was attenuated in patients with lupus compared to control subjects. Conclusion: In patients with SLE, nocturnal blood pressure and attenuated nocturnal blood pressure dipping were significantly associated with several innate and adaptive immune system biomarkers.
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Affiliation(s)
- Daniel A. Carranza-Leon
- Department of Medicine, Vanderbilt University Medical Center (DAC, AO, CMS, MJO, and CPC) and Tennessee Valley Healthcare System, US. Department of Veterans Affairs (MJO and CPC)
| | - Annette Oeser
- Department of Medicine, Vanderbilt University Medical Center (DAC, AO, CMS, MJO, and CPC) and Tennessee Valley Healthcare System, US. Department of Veterans Affairs (MJO and CPC)
| | - Qiong Wu
- Department of Medicine, Vanderbilt University Medical Center (DAC, AO, CMS, MJO, and CPC) and Tennessee Valley Healthcare System, US. Department of Veterans Affairs (MJO and CPC)
| | - C. Michael Stein
- Department of Medicine, Vanderbilt University Medical Center (DAC, AO, CMS, MJO, and CPC) and Tennessee Valley Healthcare System, US. Department of Veterans Affairs (MJO and CPC)
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K Dolu A, Korkmaz A, Kundi H, Guray U. Whole blood viscosity predicts nondipping circadian pattern in essential hypertension. Biomark Med 2020; 14:1307-1316. [DOI: 10.2217/bmm-2020-0249] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: We aimed to investigate the association between whole blood viscosity (WBV) and nondipping pattern in patients with essential hypertension. Materials & methods: A total of consecutive 530 patients who had been evaluated by ambulatory blood pressure monitoring were included. WBV was estimated by using hematocrit and plasma total protein levels for both WBV in low shear rate (0.5 s-1) and WBV in high shear rate (208 s-1) according to the de Simone’s formula. Results: In the multivariate analysis, low shear rate and high shear rate of WBV were associated independently with nondipping pattern in patients with essential hypertension. Conclusion: As a simple, inexpensive and noninvasive tool, WBV seems to be a significant predictor of nondipping hypertension.
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Affiliation(s)
- Abdullah K Dolu
- Department of Cardiology, İzmir Katip Çelebi University Ataturk Training and Research Hospital, Izmir, 35360, Turkey
| | - Ahmet Korkmaz
- Department of Cardiology, Ankara City Hospital, Health Sciences University, Ankara, 06800, Turkey
| | - Harun Kundi
- Richard A. and Susan F. Smith Center for Outcomes Research in Cardiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Umit Guray
- Department of Cardiology, Ankara City Hospital, Health Sciences University, Ankara, 06800, Turkey
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Ntineri A, Kollias A, Zeniodi ME, Vazeou A, Soldatou A, Stergiou GS. Insight into the 24-hour ambulatory central blood pressure in adolescents and young adults. J Clin Hypertens (Greenwich) 2020; 22:1789-1796. [PMID: 32812687 DOI: 10.1111/jch.13999] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/02/2020] [Accepted: 05/07/2020] [Indexed: 11/28/2022]
Abstract
This study attempted to investigate the behavior of 24-hour central ambulatory blood pressure (ABP) in adolescents and young adults. Adolescents and young adults (age 10-25 years) referred for elevated blood pressure (BP) and healthy volunteers had simultaneous 24-hour peripheral (brachial) and central (aortic) ABP monitoring using the same automated upper-arm cuff device (Mobil-O-Graph 24h PWA). Central BP was calculated by the device using two different calibration methods (C1SBP using peripheral systolic (pSBP)/diastolic BP and C2SBP using mean arterial/diastolic BP). A total of 136 participants (age 17.9 ± 4.7 years, 54% adolescents, 77% males, 25% volunteers, 34% with elevated peripheral ABP) were analyzed. Twenty-four-hour pSBP was higher than C1SBP, with this difference being more pronounced during daytime than nighttime (16.3 ± 4.5 and 10.5 ± 3.2 mm Hg, respectively, P < .001). Younger age, higher body height, and male gender were associated with greater systolic ABP amplification (pSBP-C1SBP difference). C1SBP followed the variation pattern of pSBP, yet with smaller nighttime dip (8.4 ± 6.0% vs 11.9 ± 4.6%, P < .001), whereas C2SBP increased (2.4 ± 7.2%) during nighttime sleep (P < .001 for comparison with pSBP change). Older age remained independent determinant of larger nighttime BP fall for pSBP and C1SBP, whereas male gender predicted a larger nighttime C2SBP rise. These data suggest that the calibration method of the BP monitor considerably influences the diurnal variation in central BP, showing a lesser nocturnal dip than pSBP or even nocturnal BP rise, which are determined by the individual's age and gender.
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Affiliation(s)
- Angeliki Ntineri
- Hypertension Center STRIDE-7, National and Kapodistrian University of Athens, School of Medicine, Third Department of Medicine, Sotiria Hospital, Athens, Greece
| | - Anastasios Kollias
- Hypertension Center STRIDE-7, National and Kapodistrian University of Athens, School of Medicine, Third Department of Medicine, Sotiria Hospital, Athens, Greece
| | - Maria Elena Zeniodi
- Hypertension Center STRIDE-7, National and Kapodistrian University of Athens, School of Medicine, Third Department of Medicine, Sotiria Hospital, Athens, Greece
| | - Andriani Vazeou
- First Department of Pediatrics, Panagiotis and Aglaia Kyriakou Children's Hospital, Athens, Greece
| | - Alexandra Soldatou
- Second Department of Pediatrics, National and Kapodistrian University of Athens, Panagiotis and Aglaia Kyriakou Children's Hospital, Athens, Greece
| | - George S Stergiou
- Hypertension Center STRIDE-7, National and Kapodistrian University of Athens, School of Medicine, Third Department of Medicine, Sotiria Hospital, Athens, Greece
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Damianaki K, Burnier M, Dimitriadis K, Tsioufis C, Petras D. Renal Functional Reserve Is Related to the Nondipping Phenotype and to the Exercise Heart Rate Response in Patients with Essential Hypertension and Preserved Renal Function. Kidney Blood Press Res 2020; 45:737-747. [PMID: 32784307 DOI: 10.1159/000508939] [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: 01/08/2020] [Accepted: 05/25/2020] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Renal functional reserve (RFR), defined as the difference between stress and resting glomerular filtration rate (GFR), may constitute a diagnostic tool to identify patients at higher risk of developing acute kidney injury or chronic kidney disease. Blunted RFR has been demonstrated in early stages of hypertension and has been attributed to impaired vascular reactivity due to an overactive sympathetic nervous system (SNS). OBJECTIVE The purpose of this study was to investigate whether RFR correlates with other phenotypes expressing overactivity of the SNS in patients with essential hypertension and preserved renal function. METHODS Thirty-six patients with untreated essential hypertension and a GFR >60 mL/min/1.73 m2 were enrolled. The following parameters were measured: RFR, 24-h ambulatory blood pressure (BP) profile, a treadmill stress test, and an echocardiographic examination. Urine and venous samples were obtained at specific time points for the determination of clinical parameters, and both resting and stress GFR were calculated by using endogenous creatinine clearance for the measurement of RFR after an acute oral protein load (1 g/kg). RESULTS Twenty-one patients had a RFR <30 mL/min/1.73 m2 and 15 had a RFR above this cutoff. A nondipping pattern of 24-h BP was significantly more frequent in patients with low RFR (57.1 vs. 25.0%, p < 0.05 for systolic BP and 52.3 vs. 10.0%, p < 0.02 for diastolic BP). Moreover, patients with lower RFR values showed a blunted heart rate (HR) response to exercise during treadmill test (r = 0.439, p < 0.05). None of the echocardiographic parameters differed between the two groups of patients. CONCLUSIONS In hypertensive patients with preserved GFR, reduced RFR is related to nondipping BP phenotype as well as to attenuated exercise HR response. Overactivity of the SNS may be a common pathway. Since loss of RFR may represent a risk factor for acute or chronic kidney injury, hypertensive patients with blunted RFR might need a more careful renal follow-up.
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Affiliation(s)
- Katerina Damianaki
- Service of Nephrology, University Hospital of Athens, Hippokration Hospital, Athens, Greece,
| | - Michel Burnier
- Service of Nephrology and Hypertension, University Hospital of Lausanne, Lausanne, Switzerland
| | - Kyriakos Dimitriadis
- First Cardiology Clinic, National and Kapodistrian University of Athens, Medical School, Hippokration Hospital, Athens, Greece
| | - Costas Tsioufis
- First Cardiology Clinic, National and Kapodistrian University of Athens, Medical School, Hippokration Hospital, Athens, Greece
| | - Dimitrios Petras
- Service of Nephrology, University Hospital of Athens, Hippokration Hospital, Athens, Greece
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Correlations between indices of dynamic components of ambulatory blood pressure and renal damage in elderly Chinese male with essential hypertension. Blood Press Monit 2020; 25:303-309. [PMID: 32769403 PMCID: PMC7643796 DOI: 10.1097/mbp.0000000000000470] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Twenty-four-hour ambulatory blood pressure monitoring (ABPM) is an accurate method to document changes in blood pressure (BP) and is more predictive than office and home BP monitoring for cardiovascular outcomes in elderly people. We aimed to determine the relationship between ABPM indices and renal damage in elderly Chinese male patients with essential hypertension. METHODS We investigated 998 Chinese men (mean age of 78.44 ± 12.02 years) with essential hypertension. Renal function, laboratory testing, and ABPM, including ABP, BP variability, and BP circadian rhythms were investigated. Data were shown according to BP controlling status. The relationships between ABPM indices and renal damage [expressed by urine protein, urine albumin/creatinine ratio (uACR), estimated glomerular filtration rate (eGFR), blood urea nitrogen (BUN)] were assessed using multiple regression analysis. RESULTS After adjustments for age, common cardiovascular risk factors, and medications, uACR level was positively associated with 24-h mean systolic blood pressure (SBP), 24-h mean pulse pressure (PP), and 24-h SBP percent time of elevation. eGFR level was negatively associated with the 24-h mean SBP and 24-h mean PP. BUN level was positively correlated with the 24-h mean SBP, 24-h mean PP, and 24-h SBP percent time of elevation, whereas the BUN level was negatively associated with the 24-h DBP SD. CONCLUSION The ABPM indices associated with renal damage may be regarded as an early predictive marker for renal function impairment in Chinese elderly male patients with hypertension.
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Pandit JA, Lores E, Batlle D. Cuffless Blood Pressure Monitoring: Promises and Challenges. Clin J Am Soc Nephrol 2020; 15:1531-1538. [PMID: 32680913 PMCID: PMC7536750 DOI: 10.2215/cjn.03680320] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Current BP measurements are on the basis of traditional BP cuff approaches. Ambulatory BP monitoring, at 15- to 30-minute intervals usually over 24 hours, provides sufficiently continuous readings that are superior to the office-based snapshot, but this system is not suitable for frequent repeated use. A true continuous BP measurement that could collect BP passively and frequently would require a cuffless method that could be worn by the patient, with the data stored electronically much the same way that heart rate and heart rhythm are already done routinely. Ideally, BP should be measured continuously and frequently during diverse activities during both daytime and nighttime in the same subject by means of novel devices. There is increasing excitement for newer methods to measure BP on the basis of sensors and algorithm development. As new devices are refined and their accuracy is improved, it will be possible to better assess masked hypertension, nocturnal hypertension, and the severity and variability of BP. In this review, we discuss the progression in the field, particularly in the last 5 years, ending with sensor-based approaches that incorporate machine learning algorithms to personalized medicine.
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Affiliation(s)
- Jay A Pandit
- Division of Cardiology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Enrique Lores
- Division of Nephrology and Hypertension, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Daniel Batlle
- Division of Nephrology and Hypertension, Northwestern University Feinberg School of Medicine, Chicago, Illinois
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Isolated nocturnal and isolated daytime hypertension associate with altered cardiovascular morphology and function in children with chronic kidney disease: findings from the Cardiovascular Comorbidity in Children with Chronic Kidney Disease study. J Hypertens 2020; 37:2247-2255. [PMID: 31205198 DOI: 10.1097/hjh.0000000000002160] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
INTRODUCTION Prevalence of isolated nocturnal hypertension (INH) and isolated daytime hypertension (IDH) is around 10% in adults. Data in children, especially in chronic kidney disease (CKD), are lacking. The aim of this cross-sectional multicenter cohort study was to define the prevalence of INH and IDH and its association with cardiovascular morphology and function, that is, pulse wave velocity (PWV), carotid intima-media thickness (cIMT), or left ventricular mass index (LVMI) in children with CKD. METHODS Ambulatory blood pressure (BP) monitoring profiles were analyzed in 456 children with CKD stages III-V participating in the Cardiovascular Comorbidity in Children with Chronic Kidney Disease Study (64.3% males, 71.3% congenital anomaly of the kidney and urinary tract, age 12.5 ± 3.2 years, estimated glomerular filtration rate 29 ± 12 ml/min per 1.73 m). Baseline PWV, cIMT, and LVMI were compared in normotension, INH, IDH, or sustained 24-h hypertension. RESULTS Prevalence of sustained hypertension was 18.4%, of INH 13.4%, and of IDH 3.7%. PWV SDS (SD score) and cIMT SDS were significantly higher in sustained hypertension and INH, and PWV SDS was significantly higher in IDH, compared with normotension. LVMI was significantly increased in sustained hypertension, but not in INH or IDH. Determinants of INH were smallness for gestational age, older age, higher height SDS and parathyroid hormone, and shorter duration of CKD. In logistic regression analysis, day/night-time hypertension or ambulatory BP monitoring pattern (normal, INH, IDH, sustained hypertension) were independently associated with cardiovascular outcome measures: elevated night-time BP was associated with increased cIMT, PWV, and left ventricular hypertrophy; INH was associated with cIMT. CONCLUSION INH is present in almost one out of seven children with predialysis CKD; INH and nocturnal hypertension in general are associated with alterations of arterial morphology and function.
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Factors influencing blood pressure and microalbuminuria in children with type 1 diabetes mellitus: salt or sugar? Pediatr Nephrol 2020; 35:1267-1276. [PMID: 32211992 DOI: 10.1007/s00467-020-04526-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 02/15/2020] [Accepted: 02/28/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND The aim of the study is to identify the effect of salt intake and diabetes itself on blood pressure (BP) profile and microalbuminuria in children with type one diabetes mellitus (T1DM). Our hypothesis is that higher amount of salt consumption and/or hyperglycemia may impair blood pressure pattern in children with T1DM. METHODS This cross-sectional study included 84 children and adolescents with T1DM (62% females, age 13.9 ± 3.2 years, disease duration 7.3 ± 3.1 years, 43% poorly controlled diabetes) and 54 aged- and sex-matched healthy children with an adequately collected 24-h urine samples. Urine sodium, creatinine, and microalbumin were measured and salt intake was assessed on the basis of sodium excretion in 24-h urine. Blood pressure profile of the children with T1DM was evaluated with 24-h ambulatory blood pressure monitoring. RESULTS Compared to the children with well-controlled diabetes, children with poorly controlled diabetes had significantly higher standard deviation scores (SDS) of nighttime systolic BP (0.22 ± 1.28 vs - 0.87 ± 0.76, p = 0.003) and lower dipping in diastole (13.4 ± 5.9 vs 18.4 ± 8.1, p = 0.046). Among T1DM group, children with the highest quartile of salt intake had higher nighttime systolic and diastolic BP-SDS (0.53 ± 1.25 vs - 0.55 ± 0.73, p = 0.002 and 0.89 ± 1.19 vs 0.25 ± 0.63, p = 0.038, respectively) and lower dipping in systole compared to their counterparts (7.7 ± 5.0 vs 11.5 ± 6.1, p = 0.040). High averaged HbA1c was independently associated with higher both daytime and nighttime systolic BP-SDS (p = 0.010, p < 0.001) and nighttime diastolic BP-SDS (p = 0.001), and lower diastolic dipping (p = 0.001). High salt intake was independently associated with higher nighttime systolic BP-SDS (p = 0.002) and lower systolic dipping (p = 0.019). A 24-h MAP-SDS was the only independent risk factor for microalbuminuria (p = 0.035). CONCLUSION Beside poor diabetic control, high salt consumption appears to be an important modifiable risk factor for impaired BP pattern, which contributes to the development of diabetic kidney disease in children with T1DM.
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Microbiota-governed microRNA-204 impairs endothelial function and blood pressure decline during inactivity in db/db mice. Sci Rep 2020; 10:10065. [PMID: 32572127 PMCID: PMC7308358 DOI: 10.1038/s41598-020-66786-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 05/15/2020] [Indexed: 01/05/2023] Open
Abstract
An impaired decline in blood pressure at rest is typical in people with diabetes, reflects endothelial dysfunction, and increases the risk of end-organ damage. Here we report that microRNA-204 (miR-204) promotes endothelial dysfunction and impairment in blood pressure decline during inactivity. We show that db/db mice overexpress miR-204 in the aorta, and its absence rescues endothelial dysfunction and impaired blood pressure decline during inactivity despite obesity. The vascular miR-204 is sensitive to microbiota, and microbial suppression reversibly decreases aortic miR-204 and improves endothelial function, while the endothelial function of mice lacking miR-204 remained indifferent to the microbial alterations. We also show that the circulating miR-122 regulates vascular miR-204 as miR-122 inhibition decreases miR-204 in endothelial cells and aorta. This study establishes that miR-204 impairs endothelial function, promotes impairment in blood pressure decline during rest, and opens avenues for miR-204 inhibition strategies against vascular dysfunction.
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Nocturnal blood pressure measured by home devices: evidence and perspective for clinical application. J Hypertens 2020; 37:905-916. [PMID: 30394982 DOI: 10.1097/hjh.0000000000001987] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
: Studies using ambulatory blood pressure (BP) monitoring have shown that BP during night-time sleep is a stronger predictor of cardiovascular outcomes than daytime ambulatory or conventional office BP. However, night-time ambulatory BP recordings may interfere with sleep quality because of the device cuff inflation and frequency of measurements. Hence, there is an unmet need for obtaining high quality BP values during sleep. In the last two decades, technological development of home BP devices enabled automated BP measurements during night-time. Preliminary data suggest that nocturnal home BP measurements yield similar BP values and show good agreement in detecting nondippers when compared with ambulatory BP monitoring. Thus, nocturnal home BP measurements might be a reliable and practical alternative to ambulatory BP monitoring to evaluate BP during sleep. As the use of home BP devices is widespread, well accepted by users and has relatively low cost, it may prove to be more feasible and widely available for routine clinical assessment of nocturnal BP. At present, however, data on the prognostic relevance of nocturnal BP measured by home devices, the optimal measurement schedule, and other methodological issues are lacking and await further investigation. This article offers a systematic review of the current evidence on nocturnal home BP, highlights the remaining research questions, and provides preliminary recommendations for application of this novel approach in BP management.
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Nocturnal blood pressure dipping as a marker of endothelial function and subclinical atherosclerosis in pediatric-onset systemic lupus erythematosus. Arthritis Res Ther 2020; 22:129. [PMID: 32493472 PMCID: PMC7268394 DOI: 10.1186/s13075-020-02224-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 05/21/2020] [Indexed: 01/20/2023] Open
Abstract
Background Loss of the normal nocturnal decline in blood pressure (BP), known as non-dipping, is a potential measure of cardiovascular risk identified by ambulatory blood pressure monitoring (ABPM). We sought to determine whether non-dipping is a useful marker of abnormal vascular function and subclinical atherosclerosis in pediatric-onset systemic lupus erythematosus (pSLE). Methods Twenty subjects 9–19 years of age with pSLE underwent ABPM, peripheral endothelial function testing, carotid-femoral pulse wave velocity/analysis for aortic stiffness, and carotid intima-media thickness. We assessed the prevalence of non-dipping and other ABPM abnormalities. Pearson or Spearman rank correlation tests were used to evaluate relationships between nocturnal BP dipping, BP load (% of abnormally elevated BPs over 24-h), and vascular outcome measures. Results The majority (75%) of subjects had inactive disease, with mean disease duration of 3.2 years (± 2.1). The prevalence of non-dipping was 50%, which occurred even in the absence of nocturnal or daytime hypertension. Reduced diastolic BP dipping was associated with poorer endothelial function (r 0.5, p = 0.04). Intima-media thickness was significantly greater in subjects with non-dipping (mean standard deviation score of 3.0 vs 1.6, p = 0.02). In contrast, higher systolic and diastolic BP load were associated with increased aortic stiffness (ρ 0.6, p = 0.01 and ρ 0.7, p < 0.01, respectively), but not with endothelial function or intima-media thickness. Conclusion In a pSLE cohort with low disease activity, isolated nocturnal BP non-dipping is prevalent and associated with endothelial dysfunction and atherosclerotic changes. In addition to hypertension assessment, ABPM has a promising role in risk stratification and understanding heterogeneous mechanisms of cardiovascular disease in pSLE.
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Impact of ambulatory SBP and overweight on executive function performance in children and adolescents. J Hypertens 2020; 38:1123-1130. [DOI: 10.1097/hjh.0000000000002371] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Bicalutamide Elicits Renal Damage by Causing Mitochondrial Dysfunction via ROS Damage and Upregulation of HIF-1. Int J Mol Sci 2020; 21:ijms21093400. [PMID: 32403414 PMCID: PMC7247665 DOI: 10.3390/ijms21093400] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 04/19/2020] [Accepted: 04/24/2020] [Indexed: 02/07/2023] Open
Abstract
Combined androgen blockade using bicalutamide (Bic) is a therapeutic choice for treating prostate cancer (PCa). However, even at regular clinical dosages, Bic frequently shows adverse effects associated with cardiovascular and renal damage. Previously, we found that Bic selectively damaged mesangial cells compared to tubular cells and in an in vivo rat model, we also found renal damage caused by Bic. In the present study, a rat mesangial cell model was used to further the investigation. Results indicated that Bic enhanced lactate dehydrogenase release, reactive oxygen species (ROS) production, lysosome population and kidney injury molecule-1 and decreased N-cadherin. Bic elicited mitochondrial swelling and reduced the mitochondrial potential, resulting in severe suppression of the oxygen consumption rate (OCR), maximum respiration and ATP production. The hypoxia-inducible factor (HIF)-1α transcriptional activity and messenger RNA were significantly upregulated in dose-dependent manners. The HIF-1α protein reached a peak value at 24 h then rapidly decayed. BCL2/adenovirus E1B 19-kDa protein-interacting protein 3 and cleaved caspase-3 were dose-dependently upregulated by Bic (60 μM) and that eventually led to cell apoptosis. It is suggested that Bic induces renal damage via ROS and modulates HIF-1α pathway and clinically, some protective agents like antioxidants are recommended for co-treatment.
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Ang L, Dillon B, Mizokami-Stout K, Pop-Busui R. Cardiovascular autonomic neuropathy: A silent killer with long reach. Auton Neurosci 2020; 225:102646. [PMID: 32106052 DOI: 10.1016/j.autneu.2020.102646] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 01/30/2020] [Accepted: 02/11/2020] [Indexed: 02/07/2023]
Abstract
Cardiovascular autonomic neuropathy (CAN) is a common and deadly complication of diabetes mellitus, which is frequently overlooked in clinical practice due to its characteristic subtle presentation earlier in disease. Yet, timely detection of CAN may help implementation of tailored interventions to prevent its progression and mitigate the risk of associated complications, including cardiovascular disease (CVD), cardiac arrhythmias, myocardial dysfunction leading to congestive heart failure and all-cause mortality. This review highlights current CAN epidemiology trends, novel mechanisms linking CAN with other diabetes complications and current recommendations for diagnosis and management of the disease in the clinical setting.
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Affiliation(s)
- Lynn Ang
- Division of Metabolism, Endocrinology, and Diabetes, University of Michigan, Ann Arbor, MI, United States of America
| | - Brendan Dillon
- University of Michigan Medical School, Ann Arbor, MI, United States of America
| | - Kara Mizokami-Stout
- Division of Metabolism, Endocrinology, and Diabetes, University of Michigan, Ann Arbor, MI, United States of America
| | - Rodica Pop-Busui
- Division of Metabolism, Endocrinology, and Diabetes, University of Michigan, Ann Arbor, MI, United States of America.
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Levitsky J, Asrani SK, Klintmalm G, Schiano T, Moss A, Chavin K, Miller C, Guo K, Zhao L, Jennings LW, Brown M, Armstrong B, Abecassis M. Discovery and Validation of a Biomarker Model (PRESERVE) Predictive of Renal Outcomes After Liver Transplantation. Hepatology 2020; 71:1775-1786. [PMID: 31509263 PMCID: PMC7883482 DOI: 10.1002/hep.30939] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 09/05/2019] [Indexed: 12/19/2022]
Abstract
BACKGROUND AND AIMS A high proportion of patients develop chronic kidney disease (CKD) after liver transplantation (LT). We aimed to develop clinical/protein models to predict future glomerular filtration rate (GFR) deterioration in this population. APPROACH AND RESULTS In independent multicenter discovery (CTOT14) and single-center validation (BUMC) cohorts, we analyzed kidney injury proteins in serum/plasma samples at month 3 after LT in recipients with preserved GFR who demonstrated subsequent GFR deterioration versus preservation by year 1 and year 5 in the BUMC cohort. In CTOT14, we also examined correlations between serial protein levels and GFR over the first year. A month 3 predictive model was constructed from clinical and protein level variables using the CTOT14 cohort (n = 60). Levels of β-2 microglobulin and CD40 antigen and presence of hepatitis C virus (HCV) infection predicted early (year 1) GFR deterioration (area under the curve [AUC], 0.814). We observed excellent validation of this model (AUC, 0.801) in the BUMC cohort (n = 50) who had both early and late (year 5) GFR deterioration. At an optimal threshold, the model had the following performance characteristics in CTOT14 and BUMC, respectively: accuracy (0.75, 0.8), sensitivity (0.71, 0.67), specificity (0.78, 0.88), positive predictive value (0.74, 0.75), and negative predictive value (0.76, 0.82). In the serial CTOT14 analysis, several proteins, including β-2 microglobulin and CD40, correlated with GFR changes over the first year. CONCLUSIONS We have validated a clinical/protein model (PRESERVE) that early after LT can predict future renal deterioration versus preservation with high accuracy. This model may help select recipients at higher risk for subsequent CKD for early, proactive renal sparing strategies.
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Affiliation(s)
- Josh Levitsky
- Northwestern University Feinberg School of Medicine, Chicago, IL
| | | | | | | | | | | | | | - Kexin Guo
- Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Lihui Zhao
- Northwestern University Feinberg School of Medicine, Chicago, IL
| | | | - Merideth Brown
- Division of Allergy, Immunology, and Transplantation, National Institute of Allergy and Infectious Diseases, Bethesda, MD
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Aung AT, Chan SP, Kyaing TT, Lee CH. Diabetes mellitus is associated with high sleep-time systolic blood pressure and non-dipping pattern. Postgrad Med 2020; 132:346-351. [PMID: 32208051 DOI: 10.1080/00325481.2020.1745537] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
INTRODUCTION Compared to clinic blood pressure (BP), sleep-time BP and non-dipping BP pattern are better predictors of target organ damage and cardiovascular sequalae. AIM In a retrospective study, we determined whether diabetes mellitus (DM) status is associated with high sleep-time BP and non-dipping pattern. METHODS We analyzed 1092 patients who underwent ambulatory BP monitoring between 2015 and 2017 in a tertiary cardiology institution. During a 24-hour period, BP was automatically measured every 15 minutes between 7:00 AM and 11:59 PM and every 30 minutes thereafter. RESULTS Compared with the non-DM group (n = 910), the DM group (n = 182) had a higher 24-hour systolic BP (137 ± 17 vs. non-DM, 132 ± 14 mmHg, p < 0.001) and sleep-time systolic BP (132 ± 20 vs. 123 ± 16 mmHg, p < 0.001), and was more likely to exhibit non-dipping (63% vs 42%, p˂0.001). The DM group was also less likely to meet the guideline-recommended target of 120/70 mmHg for the sleep-time BP measured via ambulatory monitoring (22% vs. 34%, p = 0.002). After adjusting for the effects of age, sex, body mass index, smoking, urea, eGFR, previous myocardial infarction, previous percutaneous coronary intervention, previous coronary artery bypass surgery, and previous stroke, DM remained a significant independent predictor of a higher 24-hour systolic BP (coefficient: 2.8, 95% confidence interval: 0.1-5.5, p = 0.042) and higher sleep-time systolic BP (coefficient: 4.2, 95% confidence interval: 1.1-7.3, p = 0.008). There was a trend toward more sleep-time non-dipping BP pattern (odds ratio: 1.4, 95% confidence interval: 1.0-2.0, p = 0.087) in the DM group. CONCLUSION DM is independently associated with suboptimal 24-hour BP control. This association is mainly attributed to a high sleep-time systolic BP.
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Affiliation(s)
- Aye Thandar Aung
- Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore
| | - Siew-Pang Chan
- Department of Cardiology, National University Heart Centre Singapore , Singapore, Singapore.,Cardiovascular Research Institute, National University of Singapore , Singapore, Singapore
| | - Than-Than Kyaing
- Department of Cardiovascular Medicine, Mandalay General Hospital , Mandalay, Myanmar
| | - Chi-Hang Lee
- Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore.,Cardiovascular Research Institute, National University of Singapore , Singapore, Singapore
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Association of a Disrupted Dipping Pattern of Blood Pressure with Progression of Renal Injury during the Development of Salt-Dependent Hypertension in Rats. Int J Mol Sci 2020; 21:ijms21062248. [PMID: 32213948 PMCID: PMC7139748 DOI: 10.3390/ijms21062248] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 03/19/2020] [Accepted: 03/21/2020] [Indexed: 12/28/2022] Open
Abstract
The aim of the present study is to investigate whether a disruption of the dipping pattern of blood pressure (BP) is associated with the progression of renal injury in Dahl salt-sensitive (DSS) hypertensive rats. Seven-week-old DSS rats were fed a high salt diet (HSD; 8% NaCl) for 10 weeks, followed by a transition to a normal salt diet (NSD; 0.3% NaCl) for 4 weeks. At baseline, NSD-fed DSS rats showed a dipper-type circadian rhythm of BP. By contrast, HSD for 5 days caused a significant increase in the difference between the active and inactive periods of BP with an extreme dipper type of BP, while proteinuria and renal tissue injury were not observed. Interestingly, HSD feeding for 10 weeks developed hypertension with a non-dipper pattern of BP, which was associated with obvious proteinuria and renal tissue injury. Four weeks after switching to an NSD, BP and proteinuria were significantly decreased, and the BP circadian rhythm returned to the normal dipper pattern. These data suggest that the non-dipper pattern of BP is associated with the progression of renal injury during the development of salt-dependent hypertension.
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Thoonkuzhy C, Rahman M. New Insights on Chronotherapy in Hypertension: Is Timing Everything? Curr Hypertens Rep 2020; 22:32. [DOI: 10.1007/s11906-020-1032-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Ogugua CF, Chikani UN, Ibekwe MU, Ngwieri T, Allen H. Early signs of microvascular complications in pediatric patients with short duration of type 1 diabetes mellitus seen in southeast Nigeria. Ann Afr Med 2020; 18:200-205. [PMID: 31823955 PMCID: PMC6918793 DOI: 10.4103/aam.aam_5_19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Background Clinically evident microvascular complications are rarely seen among children and adolescents with type 1 diabetes mellitus (T1DM), although early signs develop during childhood and accelerate during puberty. Aim The aim of this study was to determine the prevalence of early signs of microvascular complications in children and adolescents aged 9-19 years with a short duration of T1DM by screening for retinopathy and nephropathy. Methods A cross-sectional study and participants were consecutively enrolled from the Endocrinology Clinic at Federal Teaching Hospital, Abakaliki. Physical examination and mydriatic ophthalmoscopy were conducted. Three early morning spot urine specimens for albumin/creatinine ratio were estimated 3 months apart. Serum creatinine levels were estimated, and the glomerular filtration rate was calculated. Glycosylated hemoglobin (HbA1c) was determined. Results Twenty-four individuals participated, 15 (62.5%) were male and the mean age at diagnosis was 12.4 ± 2.3 years. The mean duration of diabetes was 23.8 ± 20.6 months. The mean HbA1c was 11.4%. Retinopathy was seen in 16.7%, whereas 33.3% had microalbuminuria. Blood pressure range was within the 50th-90th percentile for all the participants. Conclusion The study outcome demonstrated a high prevalence of early signs of microvascular complications such as retinopathy and nephropathy among youths with short duration of T1DM. Poor glycemic control, if not halted, is associated with early signs of microvascular complications which may become clinically evident; contrary to the belief that they are rare in childhood.
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Affiliation(s)
- Chinwe Flora Ogugua
- Department of Paediatrics, Federal Teaching Hospital, Abakaliki, Ebonyi State, Nigeria
| | - Ugo Nnenna Chikani
- Department of Paediatrics, University of Nigeria, Ituku Ozalla Campus, Enugu, Nigeria
| | - Maryann Ugochi Ibekwe
- Department of Paediatrics, Federal Teaching Hospital, Abakaliki, Ebonyi State, Nigeria
| | - Thomas Ngwieri
- Department of Paediatrics, Gertrude's Children's Hospital, Nairobi, Kenya
| | - Holley Allen
- Department of Paediatrics, Baystate Children's Hospital/UMass Medical School, Springfield, MA, USA
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90
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Cha RH, Lee H, Lee JP, Kim YS, Kim SG. The influence of blood pressure patterns on renal outcomes in patients with chronic kidney disease: The long-term follow up result of the APrODiTe-2 study. Medicine (Baltimore) 2020; 99:e19209. [PMID: 32080110 PMCID: PMC7034700 DOI: 10.1097/md.0000000000019209] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Blood pressure (BP) control is the most established practice for preventing the progression and complications of chronic kidney disease (CKD). We examined the influence of BP patterns on target organ damage in hypertensive patients with CKD by using long-term follow-up data of the APrODiTe-2 study.We collected 5 years of data of APrODiTe-2 study (1 year longitudinal study) participants after the enrollment on the progression of estimated glomerular filtration (eGFR), renal outcomes (doubling of serum creatinine, 50% decrease of eGFR, maintenance dialysis, and kidney transplantation), cerebro-cardiovascular (CCV) accidents, and all-cause mortality (n=378) to evaluate the long-term influence of BP patterns on target organ damages.Initially, more than 2/3 of patients showed masked (50.0%) and sustained uncontrolled (30.6%) BP control states as well as non- (31.3%) and reverse-dipping (35.0%) states. Only 18.8% and 20.8% of participants showed a better change in BP control patterns and a dipping pattern change to dippers over 1 year, respectively. Composite of new CCV accidents occurred in 43 patients (11.4%), and no BP patterns were associated with the occurrence of new CCV accidents. A worse change in BP control categories over 1 year was associated with increased occurrence of composites of renal outcomes after adjustment for age, sex, and the cause of CKD (HR 5.997 [1.454-24.742], P = .013 and HR 4.331 [1.347-13.927], P = .014, respectively). Patients with a worse initial BP control category, a worse change in BP control categories over 1 year, and higher clinic systolic BP and pulse pressure (PP) (> median level) were more likely to have faster eGFR progression (absolute eGFR and eGFR ratio).Higher BP burden (a worse change in BP control categories, higher initial clinic systolic BP and PP) was associated with faster eGFR progression and increased occurrence of renal outcomes.
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Affiliation(s)
- Ran-hui Cha
- Department of Internal Medicine, National Medical Center
| | - Hajeong Lee
- Department of Internal Medicine, Seoul National University College of Medicine
| | - Jung Pyo Lee
- Department of Internal Medicine, Seoul National University Boramae Medical Center
| | - Yon Su Kim
- Department of Internal Medicine, Seoul National University College of Medicine
- Kidney Research Institute, Seoul National University Medical Research Center, Seoul
| | - Sung Gyun Kim
- Department of Internal Medicine, Hallym University Sacred heart Hospital, Anyang, Korea
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91
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Sokolovska J, Stefanovics J, Gersone G, Pahirko L, Valeinis J, Kalva-Vaivode S, Rovite V, Blumfelds L, Pirags V, Tretjakovs P. Angiopoietin 2 and Neuropeptide Y are Associated with Diabetic Kidney Disease in Type 1 Diabetes Mellitus. Exp Clin Endocrinol Diabetes 2020; 128:654-662. [PMID: 31958847 DOI: 10.1055/a-1079-4711] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Serum angiopoietin 2 levels have been associated with endothelial dysfunction and diabetic kidney disease. Derangements in autonomous nervous system lead to increased production of vasoconstrictory and angiogenic mediators such as norepinephrine and neuropeptide Y and are associated with increased risk of microvascular complications. AIM To investigate associations between angiopoietin 2, neuropeptide Y and diabetic kidney disease in patients with type 1 diabetes mellitus. METHODS 289 patients with type 1 diabetes mellitus duration > 1 year were included. Patients were stratified according to presence of diabetic nephropathy (macroalbuminuria, estimated glomerular filtration rate<60 ml/min/1.73 m2 or end-stage renal disease). Angiopoietin 2 was measured by Luminex technology. Neuropeptide Y was measured by ELISA. RESULTS Patients with diabetic nephropathy had significantly increased levels of angiopoietin 2 (4020.5 (2172.4-5778.1) pg/ml vs. 2001.0 (1326.7-2862.7) pg/ml) and neuropeptide Y (18.22 (14.85-21.85) ng/ml vs. 12.91 (9.96-17.07) ng/ml). Higher levels of angiopoietin 2 and neuropeptide Y were observed also in patients with arterial hypertension. Angiopoietin 2 and neuropeptide Y correlated significantly (ρ=0.245, p<0.001). Both biomarkers were significant predictors of estimated glomerular filtration rate and diabetic nephropathy in univariate regression models. In the fully adjusted regression models and after application of a stepwise selection regression method, angiopoietin 2 demonstrated a stronger predictive power for diabetic nephropathy compared to neuropeptide Y. CONCLUSION Diabetic nephropathy is associated with increased serum concentrations of angiopoietin 2 (marker of endothelial dysfunction) and neuropeptide Y (marker of sympathetic activity) in type 1 diabetes. Angiopoietin 2 is a more potent predictor of diabetic nephropathy compared to neuropeptide Y.
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Affiliation(s)
| | | | - Gita Gersone
- Faculty of Medicine, Department of Human Physiology and Biochemistry, Riga Stradins University, Latvia
| | - Leonora Pahirko
- Faculty of Physics, Mathematics and Optometry, University of Latvia, Riga, Latvia
| | - Janis Valeinis
- Faculty of Physics, Mathematics and Optometry, University of Latvia, Riga, Latvia
| | | | - Vita Rovite
- Latvian Biomedical Research and Study Centre, Riga, Latvia
| | - Leons Blumfelds
- Faculty of Medicine, Department of Human Physiology and Biochemistry, Riga Stradins University, Latvia
| | - Valdis Pirags
- Faculty of Medicine, University of Latvia, Riga, Latvia.,Pauls Stradins Clinical University Hospital, Riga, Latvia.,Latvian Biomedical Research and Study Centre, Riga, Latvia
| | - Peteris Tretjakovs
- Faculty of Medicine, Department of Human Physiology and Biochemistry, Riga Stradins University, Latvia
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92
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Agarwal R, Song RJ, Vasan RS, Xanthakis V. Left Ventricular Mass and Incident Chronic Kidney Disease. Hypertension 2020; 75:702-706. [PMID: 31928112 DOI: 10.1161/hypertensionaha.119.14258] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Chronic kidney disease (CKD) is associated with incident cardiovascular morbidity and mortality. Whether subclinical cardiovascular disease and target organ damage is associated with incident CKD is unknown. We investigated the relations of echocardiographic left ventricular mass (LVM) with incident CKD. We evaluated 2258 Framingham Offspring cohort participants (mean age, 57 years; 56% women) who underwent echocardiography at a routine examination and had an estimated glomerular filtration rate ≥60 mL/min per 1.73 m2. We used Cox proportional hazards regression with discrete time intervals to relate sex-standardized LVM (independent variable) to the incidence of CKD, defined as estimated glomerular filtration rate <60 L/min per 1.73 m2, on follow-up. During a median follow-up of 14.6 years, 373 (16.5%) participants developed incident CKD. Higher LVM was associated with higher risk of CKD after adjusting for prevalent cardiovascular disease, body mass index, systolic blood pressure, total and HDL (high-density lipoprotein) cholesterol, antihypertensive medication, smoking, and diabetes mellitus (hazard ratio, 1.15 [95% CI, 1.03-1.29]; P=0.017) per 1-SD increase in LVM g/m2. Further adjustment for baseline estimated glomerular filtration rate (adjusted hazard ratio, 1.16 [95% CI, 1.04-1.31]; P=0.010) and baseline urine albumin/creatinine ratio (adjusted hazard ratio, 1.18 [95% CI, 1.04-1.33]; P=0.009) slightly attenuated the association. In our community-based sample, LVM was associated with incident CKD prospectively, which suggests that the relations between CKD and subclinical cardiovascular disease may be bidirectional. Further studies are needed to confirm our findings.
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Affiliation(s)
- Rajiv Agarwal
- From the Division of Nephrology, Department of Medicine, Richard L. Roudebush VA Medical Center, Indiana University School of Medicine, Indianapolis (R.A.)
| | - Rebecca J Song
- Department of Epidemiology (R.J.S., R.S.V.), Boston University School of Public Health, MA
| | - Ramachandran S Vasan
- Section of Preventive Medicine (R.S.V., V.X.), Department of Medicine, Boston University School of Medicine, MA.,Section of Cardiology (R.S.V.), Department of Medicine, Boston University School of Medicine, MA.,Department of Epidemiology (R.J.S., R.S.V.), Boston University School of Public Health, MA.,Boston University and NHLBI's Framingham Heart Study, MA (R.S.V., V.X.)
| | - Vanessa Xanthakis
- Section of Preventive Medicine (R.S.V., V.X.), Department of Medicine, Boston University School of Medicine, MA.,Department of Biostatistics (V.X.), Boston University School of Public Health, MA.,Boston University and NHLBI's Framingham Heart Study, MA (R.S.V., V.X.)
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93
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Ida T, Kusaba T, Kado H, Taniguchi T, Hatta T, Matoba S, Tamagaki K. Ambulatory blood pressure monitoring-based analysis of long-term outcomes for kidney disease progression. Sci Rep 2019; 9:19296. [PMID: 31848394 PMCID: PMC6917780 DOI: 10.1038/s41598-019-55732-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 12/02/2019] [Indexed: 12/27/2022] Open
Abstract
Non-dipping nocturnal blood pressure (BP) pattern is a predictor of the future decline of renal function; however, it is unclear whether it is still a risk for chronic kidney disease (CKD) patients with normal BP. To solve this question, a retrospective cohort study was conducted, and 1107 CKD patients who underwent ambulatory blood pressure monitoring (ABPM) were enrolled. We divided patients into 4 groups based on their nocturnal BP dipping pattern (dipper or non-dipper) and average 24-hour BP (hypertension or normotension). The cumulative incidence of composite renal outcomes, including a 40% reduction in eGFR, the induction of renal-replacement therapy, or death from renal causes, was analyzed. Overall, 86.1% of participants were non-dippers and 48.2% of them were normotensive. During the median follow-up period of 4.72 years, the incidence of renal composite outcomes was highest in hypertensive non-dipper patients, and was similar between normotensive dipper and non-dipper patients. Multivariate regression analysis revealed that the 24-hour systolic BP, amount of urinary protein, and hemoglobin values were associated with the incidence of renal outcomes. In conclusion, our ABPM-based analysis revealed that a non-dipping BP pattern with normotension does not predict the future incidence of composite renal outcomes in CKD patients.
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Affiliation(s)
- Tomoharu Ida
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.,Department of Nephrology, Omihachiman Community Medical Center, Shiga, Japan
| | - Tetsuro Kusaba
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.
| | - Hiroshi Kado
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.,Department of Nephrology, Omihachiman Community Medical Center, Shiga, Japan
| | - Takuya Taniguchi
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tsuguru Hatta
- Department of Nephrology, Omihachiman Community Medical Center, Shiga, Japan
| | - Satoaki Matoba
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Keiichi Tamagaki
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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94
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Selcuk M, Yildirim E, Saylik F. Comparison of monocyte with high density lipoprotein cholesterol ratio in dipper and nondipper hypertensive patients. Biomark Med 2019; 13:1289-1296. [PMID: 31596122 DOI: 10.2217/bmm-2019-0062] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Aim: We aimed to compare the monocyte to HDL-cholesterol ratio (MHR) of nondipper hypertension (NDHT) and dipper hypertension patients. Patients & methods: A total of 162 patients were included in the study. Patients were grouped as dipper and nondipper according to 24-h ambulatory blood pressure recordings. Results: The MHR was significantly higher in nondipper hypertension group compared with control (p < 0.001) and dipper hypertension groups (p = 0.03). MHR, hs-CRP and red-cell distribution width (RDW) were independent predictors of nondipper hypertension. Area under the curve was 0.62 (p = 0.034) for MHR and 0.61 (p = 0.012) for hs-CRP in the ROC analysis. Conclusion: MHR has elevated levels in NDHT patients. Increased levels of MHR may evaluate as increased risk of cardiovascular events in NDHT patients.
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Affiliation(s)
- Murat Selcuk
- Department of Cardiology, Van Education & Research Hospital, University of Health Sciences, Van, Turkey
| | - Ersin Yildirim
- Department of Cardiology, Umraniye Education & Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - Faysal Saylik
- Department of Cardiology, Van Education & Research Hospital, University of Health Sciences, Van, Turkey
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95
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Ivy JR, Jones NK, Costello HM, Mansley MK, Peltz TS, Flatman PW, Bailey MA. Glucocorticoid receptor activation stimulates the sodium-chloride cotransporter and influences the diurnal rhythm of its phosphorylation. Am J Physiol Renal Physiol 2019; 317:F1536-F1548. [PMID: 31588796 PMCID: PMC6962506 DOI: 10.1152/ajprenal.00372.2019] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The sodium-chloride cotransporter (NCC) in the distal convoluted tubule contributes importantly to sodium balance and blood pressure (BP) regulation. NCC phosphorylation determines transport activity and has a diurnal rhythm influenced by glucocorticoids. Disturbing this rhythm induces “nondipping” BP, an abnormality that increases cardiovascular risk. The receptor through which glucocorticoids regulate NCC is not known. In this study, we found that acute administration of corticosterone to male C57BL6 mice doubled NCC phosphorylation without affecting total NCC abundance in both adrenalectomized and adrenal-intact mice. Corticosterone also increased the whole kidney expression of canonical clock genes: period circadian protein homolog 1 (Per1), Per2, cryptochrome 1, and aryl hydrocarbon receptor nuclear translocator-like protein 1. In adrenal-intact mice, chronic blockade of glucocorticoid receptor (GR) with RU486 did not change total NCC but prevented corticosterone-induced NCC phosphorylation and activation of clock genes. Blockade of mineralocorticoid receptor (MR) with spironolactone reduced the total pool of NCC but did not affect stimulation by corticosterone. The diurnal rhythm of NCC phosphorylation, measured at 6-h intervals, was blunted by chronic GR blockade, and a similar dampening of diurnal variation was seen in GR heterozygous null mice. These effects on NCC phosphorylation did not reflect altered rhythmicity of plasma corticosterone or serum and glucocorticoid-induced kinase 1 activity. Both mineralocorticoids and glucocorticoids emerge as regulators of NCC, acting via distinct receptor pathways. MR activation provides maintenance of the NCC protein pool; GR activation dynamically regulates NCC phosphorylation and establishes the diurnal rhythm of NCC activity. This study has implications for circadian BP homeostasis, particularly in individuals with abnormal glucocorticoid signaling as is found in chronic stress and corticosteroid therapy.
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Affiliation(s)
- Jessica Ruth Ivy
- British Heart Foundation Centre for Cardiovascular Science, Edinburgh Medical School, The University of Edinburgh, United Kingdom
| | - Natalie K Jones
- British Heart Foundation Centre for Cardiovascular Science, Edinburgh Medical School, The University of Edinburgh, United Kingdom
| | - Hannah M Costello
- British Heart Foundation Centre for Cardiovascular Science, Edinburgh Medical School, The University of Edinburgh, United Kingdom
| | - Morag K Mansley
- British Heart Foundation Centre for Cardiovascular Science, Edinburgh Medical School, The University of Edinburgh, United Kingdom
| | - Theresa S Peltz
- British Heart Foundation Centre for Cardiovascular Science, Edinburgh Medical School, The University of Edinburgh, United Kingdom
| | - Peter W Flatman
- British Heart Foundation Centre for Cardiovascular Science, Edinburgh Medical School, The University of Edinburgh, United Kingdom
| | - Matthew A Bailey
- British Heart Foundation Centre for Cardiovascular Science, Edinburgh Medical School, The University of Edinburgh, United Kingdom
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96
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Kario K, Shin J, Chen C, Buranakitjaroen P, Chia Y, Divinagracia R, Nailes J, Hoshide S, Siddique S, Sison J, Soenarta AA, Sogunuru GP, Tay JC, Teo BW, Turana Y, Zhang Y, Park S, Van Minh H, Wang J. Expert panel consensus recommendations for ambulatory blood pressure monitoring in Asia: The HOPE Asia Network. J Clin Hypertens (Greenwich) 2019; 21:1250-1283. [PMID: 31532913 PMCID: PMC8030405 DOI: 10.1111/jch.13652] [Citation(s) in RCA: 104] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 07/07/2019] [Indexed: 01/03/2023]
Abstract
Hypertension is an important public health issue because of its association with a number of significant diseases and adverse outcomes. However, there are important ethnic differences in the pathogenesis and cardio-/cerebrovascular consequences of hypertension. Given the large populations and rapidly aging demographic in Asian regions, optimal strategies to diagnose and manage hypertension are of high importance. Ambulatory blood pressure monitoring (ABPM) is an important out-of-office blood pressure (BP) measurement tool that should play a central role in hypertension detection and management. The use of ABPM is particularly important in Asia due to the specific features of hypertension in Asian patients, including a high prevalence of masked hypertension, disrupted BP variability with marked morning BP surge, and nocturnal hypertension. This HOPE Asia Network document summarizes region-specific literature on the relationship between ABPM parameters and cardiovascular risk and target organ damage, providing a rationale for consensus-based recommendations on the use of ABPM in Asia. The aim of these recommendations is to guide and improve clinical practice to facilitate optimal BP monitoring with the goal of optimizing patient management and expediting the efficient allocation of treatment and health care resources. This should contribute to the HOPE Asia Network mission of improving the management of hypertension and organ protection toward achieving "zero" cardiovascular events in Asia.
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Affiliation(s)
- Kazuomi Kario
- Division of Cardiovascular Medicine, Department of MedicineJichi Medical University School of MedicineTochigiJapan
| | - Jinho Shin
- Faculty of Cardiology ServiceHanyang University Medical CenterSeoulKorea
| | - Chen‐Huan Chen
- Department of MedicineSchool of Medicine National Yang‐Ming UniversityTaipeiTaiwan
| | - Peera Buranakitjaroen
- Department of Medicine, Faculty of Medicine Siriraj HospitalMahidol UniversityBangkokThailand
| | - Yook‐Chin Chia
- Department of Medical Sciences, School of Healthcare and Medical SciencesSunway UniversityBandar SunwayMalaysia
- Department of Primary Care Medicine, Faculty of MedicineUniversity of MalayaKuala LumpurMalaysia
| | - Romeo Divinagracia
- University of the East Ramon Magsaysay Memorial Medical Center Inc.Quezon CityPhilippines
| | - Jennifer Nailes
- University of the East Ramon Magsaysay Memorial Medical Center Inc.Quezon CityPhilippines
| | - Satoshi Hoshide
- Division of Cardiovascular Medicine, Department of MedicineJichi Medical University School of MedicineTochigiJapan
| | | | - Jorge Sison
- Section of Cardiology, Department of MedicineMedical Center ManilaManilaPhilippines
| | - Arieska Ann Soenarta
- Department of Cardiology and Vascular Medicine, Faculty of MedicineUniversity of Indonesia‐National Cardiovascular Center, Harapan KitaJakartaIndonesia
| | - Guru Prasad Sogunuru
- MIOT International HospitalChennaiIndia
- College of Medical SciencesKathmandu UniversityBharatpurNepal
| | - Jam Chin Tay
- Department of General MedicineTan Tock Seng HospitalSingaporeSingapore
| | - Boon Wee Teo
- Division of Nephrology, Department of MedicineYong Loo Lin School of MedicineSingaporeSingapore
| | - Yuda Turana
- Faculty of Medicine and Health SciencesAtma Jaya Catholic University of IndonesiaJakartaIndonesia
| | - Yuqing Zhang
- Divisions of Hypertension and Heart Failure, Fu Wai HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Sungha Park
- Division of Cardiology, Cardiovascular HospitalYonsei Health SystemSeoulKorea
| | - Huynh Van Minh
- Department of Internal Medicine, University of Medicine and PharmacyHue UniversityHueVietnam
| | - Ji‐Guang Wang
- Department of Hypertension, Centre for Epidemiological Studies and Clinical Trials, The Shanghai Institute of Hypertension, Shanghai Key Laboratory of Hypertension, Ruijin HospitalShanghai Jiaotong University School of MedicineShanghaiChina
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97
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Stergiou G, Stambolliu E, Bountzona I, Ntineri A, Kollias A, Vazeou A, Soldatou A. Home Blood Pressure Monitoring in Children and Adolescents: Systematic Review of Evidence on Clinical Utility. Curr Hypertens Rep 2019; 21:64. [PMID: 31240404 DOI: 10.1007/s11906-019-0967-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
PURPOSE OF REVIEW For the accurate diagnosis and management of hypertension, out-of-office blood pressure evaluation using ambulatory (ABPM) or home monitoring (HBPM) is currently recommended. In children, there is considerable evidence on the clinical utility of ABPM, whereas the evidence on HBPM is limited. This systematic review presents (i) the benefits of HBPM in children; (ii) the evidence on normal range, diagnostic accuracy, and relationship with preclinical organ damage; and (iii) guidance for devices, monitoring schedule, and interpretation. RECENT FINDINGS HBPM is a useful adjunct to the conventional office measurements for the evaluation of children with suspected or treated hypertension. HBPM is feasible in children and has good reproducibility, diagnostic accuracy and acceptability by users, and relatively low cost. Thus, it has greater potential for widespread and long-term use than ABPM, which is more expensive and often not available or not tolerated. Automated monitors that have been clinically validated specifically in children should be used with appropriate cuff size. HBPM for 7 days (minimum 3) with duplicate morning and evening measurements (minimum 12 readings) should be performed in children with suspected or treated hypertension before each office visit. Until more data become available, in case of diagnostic disagreement between office blood pressure and HBPM, treatment decisions should be based on ABPM. HBPM is clinically useful in children with hypertension. More research is needed on its clinical application, and more automated devices need to be clinically validated in this population.
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Affiliation(s)
- George Stergiou
- Hypertension Center STRIDE-7, National and Kapodistrian University of Athens, School of Medicine, Third Department of Medicine, Sotiria Hospital, Athens, Greece.
| | - Emelina Stambolliu
- Hypertension Center STRIDE-7, National and Kapodistrian University of Athens, School of Medicine, Third Department of Medicine, Sotiria Hospital, Athens, Greece
| | - Ioanna Bountzona
- Hypertension Center STRIDE-7, National and Kapodistrian University of Athens, School of Medicine, Third Department of Medicine, Sotiria Hospital, Athens, Greece
| | - Angeliki Ntineri
- Hypertension Center STRIDE-7, National and Kapodistrian University of Athens, School of Medicine, Third Department of Medicine, Sotiria Hospital, Athens, Greece
| | - Anastasios Kollias
- Hypertension Center STRIDE-7, National and Kapodistrian University of Athens, School of Medicine, Third Department of Medicine, Sotiria Hospital, Athens, Greece
| | - Andriani Vazeou
- First Department of Pediatrics, P&A Kyriakou Children's Hospital, Athens, Greece
| | - Alexandra Soldatou
- Second Department of Pediatrics, National and Kapodistrian University of Athens, School of Medicine, P&A Kyriakou Children's Hospital, Athens, Greece
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98
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Puraswani M, Khandelwal P, Saini H, Saini S, Gurjar BS, Sinha A, Shende RP, Maiti TK, Singh AK, Kanga U, Ali U, Agarwal I, Anand K, Prasad N, Rajendran P, Sinha R, Vasudevan A, Saxena A, Agarwal S, Hari P, Sahu A, Rath S, Bagga A. Clinical and Immunological Profile of Anti-factor H Antibody Associated Atypical Hemolytic Uremic Syndrome: A Nationwide Database. Front Immunol 2019; 10:1282. [PMID: 31231391 PMCID: PMC6567923 DOI: 10.3389/fimmu.2019.01282] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Accepted: 05/20/2019] [Indexed: 12/12/2022] Open
Abstract
Background: Atypical hemolytic uremic syndrome (aHUS), an important cause of acute kidney injury (AKI), is characterized by dysregulation of the alternative complement pathway. Autoantibodies to factor H (FH), a chief regulator of this pathway, account for a distinct subgroup. While high anti-FH titers predict relapse, they do not correlate well with disease activity and their functional characterization is required. Methods: Of 781 patients <18-year-old of aHUS in the nationwide database from 2007 to 2018, 436 (55.8%) had anti-FH antibodies. Clinical features and outcome of patients managed in the last 6-year (n = 317) were compared to before (n = 119). In plasma samples of 44 patients, levels of serial circulating FH immune complexes (CIC), free FH, soluble terminal complement complex (sC5b-9), sheep red blood cell (SRBC) lysis and epitope specificity (n = 8) were examined. Functional renal reserve, ambulatory hypertension, left ventricular hypertrophy (LVH), and proteinuria were evaluated in a subset. Results: Patients presented with markedly elevated anti-FH titers (10,633.2 ± 998.5 AU/ml). Management varied by center, comprising plasma exchange (PEX; 77.5%) and immunosuppression (73.9%). Patients managed in the last 6-year showed better renal survival at mean 28.5 ± 27.3 months (log rank P = 0.022). Mean anti-FH titers stayed 700–1,164 AU/ml during prolonged follow-up, correlating with CIC. Patients with relapse had lower free-FH during remission [Generalized estimating equations (GEE), P = 0.001]; anti-FH levels ≥1,330 AU/ml and free FH ≤440 mg/l predicted relapse (hazards ratio, HR 6.3; P = 0.018). Epitope specificity was similar during onset, remission and relapse. Antibody titer ≥8,000 AU/ml (HR 2.23; P = 0.024), time to PEX ≥14 days (HR 2.09; P = 0.071) and PEX for <14 days (HR 2.60; P = 0.017) predicted adverse renal outcomes. Combined PEX and immunosuppression improved long-term outcomes (HR 0.37; P = 0.026); maintenance therapy reduced risk of relapses (HR 0.11; P < 0.001). At 4.4±2.5 year, median renal reserve was 15.9%; severe ambulatory, masked and pre-hypertension were found in 38, 30, and 18%, respectively. Proteinuria and LVH occurred in 58 and 28% patients, respectively. Conclusion: Prompt recognition and therapy with PEX and immunosuppression, is associated with satisfactory outcomes. Free-FH predicts early relapses in patients with high anti-FH titers. A significant proportion of impaired functional reserve, ambulatory hypertension, proteinuria and LVH highlight the need for vigilant long-term follow-up.
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Affiliation(s)
- Mamta Puraswani
- Division of Nephrology, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Priyanka Khandelwal
- Division of Nephrology, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Himanshi Saini
- Division of Nephrology, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Savita Saini
- Division of Nephrology, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Bahadur Singh Gurjar
- Immuno Biology Laboratory II, National Institute of Immunology, New Delhi, India
| | - Aditi Sinha
- Division of Nephrology, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | | | | | | | - Uma Kanga
- Department of Transplant Immunology and Immunogenetics, All India Institute of Medical Sciences, New Delhi, India
| | - Uma Ali
- Department of Pediatrics, BJ Wadia Hospital for Children, Mumbai, India
| | - Indira Agarwal
- Department of Pediatrics, Christian Medical College, Vellore, India
| | - Kanav Anand
- Division of Pediatric Nephrology, Sir Ganga Ram Hospital, New Delhi, India
| | - Narayan Prasad
- Department of Nephrology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Padmaraj Rajendran
- Department of Pediatric Nephrology, Institute of Child Health and Hospital for Children, Madras Medical College, Chennai, India
| | - Rajiv Sinha
- Department of Pediatrics, Institute of Child Health, Kolkata, India
| | - Anil Vasudevan
- Department of Pediatric Nephrology, St. Johns Medical College and Hospital, Bengaluru, India
| | - Anita Saxena
- Department of Cardiology, All India Institute of Medical Sciences, New Delhi, India
| | - Sanjay Agarwal
- Department of Nephrology, All India Institute of Medical Sciences, New Delhi, India
| | - Pankaj Hari
- Division of Nephrology, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Arvind Sahu
- National Centre for Cell Science, Pune, India
| | - Satyajit Rath
- National Centre for Cell Science, Pune, India.,Translational Health Science and Technology Institute, Faridabad, India
| | - Arvind Bagga
- Division of Nephrology, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
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Sogunuru GP, Kario K, Shin J, Chen C, Buranakitjaroen P, Chia YC, Divinagracia R, Nailes J, Park S, Siddique S, Sison J, Soenarta AA, Tay JC, Turana Y, Zhang Y, Hoshide S, Wang J. Morning surge in blood pressure and blood pressure variability in Asia: Evidence and statement from the HOPE Asia Network. J Clin Hypertens (Greenwich) 2019; 21:324-334. [PMID: 30525279 PMCID: PMC8030409 DOI: 10.1111/jch.13451] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 10/05/2018] [Indexed: 08/02/2023]
Abstract
Hypertension is a major risk factor for cardiovascular and cerebrovascular diseases. To effectively prevent end-organ damage, maintain vascular integrity and reduce morbidity and mortality, it is essential to decrease and adequately control blood pressure (BP) throughout each 24-hour period. Exaggerated early morning BP surge (EMBS) is one component of BP variability (BPV), and has been associated with an increased risk of stroke and cardiovascular events, independently of 24-hour average BP. BPV includes circadian, short-term and long-term components, and can best be documented using out-of-office techniques such as ambulatory and/or home BP monitoring. There is a large body of evidence linking both BPV and EMBS with increased rates of adverse cardio- and cerebrovascular events, and end-organ damage. Differences in hypertension and related cardiovascular disease rates have been reported between Western and Asian populations, including a higher rate of stroke, higher prevalence of metabolic syndrome, greater salt sensitivity and more common high morning and nocturnal BP readings in Asians. This highlights a need for BP management strategies that take into account ethnic differences. In general, long-acting antihypertensives that control BP throughout the 24-hour period are preferred; amlodipine and telmisartan have been shown to control EMBS more effectively than valsartan. Home and ambulatory BP monitoring should form an essential part of hypertension management, with individualized pharmacotherapy to achieve optimal 24-hour BP control particularly the EMBS and provide the best cardio- and cerebrovascular protection. Future research should facilitate better understanding of BPV, allowing optimization of strategies for the detection and treatment of hypertension to reduce adverse outcomes.
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Affiliation(s)
- Guru P. Sogunuru
- MIOT International HospitalChennaiIndia
- College of Medical SciencesKathmandu UniversityBharatpurNepal
| | - Kazuomi Kario
- Division of Cardiovascular Medicine, Department of MedicineJichi Medical University School of MedicineTochigiJapan
| | - Jinho Shin
- Faculty of Cardiology ServiceHanyang University Medical CenterSeoulKorea
| | - Chen‐Huan Chen
- Department of MedicineFaculty of Medicine, National Yang‐Ming UniversityTaipeiTaiwan
| | - Peera Buranakitjaroen
- Department of MedicineFaculty of Medicine Siriraj Hospital, Mahidol UniversityBangkokThailand
| | - Yook C. Chia
- Depatment of Medical Sciences, School of Healthcare and Medical SciencesSunway UniversityBandar SunwaySelangor Darul EhsanMalaysia
| | - Romeo Divinagracia
- University of the East Ramon Magsaysay Memorial Medical Center IncQuezon CityPhilippines
| | - Jennifer Nailes
- University of the East Ramon Magsaysay Memorial Medical Center IncQuezon CityPhilippines
| | - Sungha Park
- Division of CardiologyCardiovascular Hospital, Yonsei Health SystemSeoulKorea
| | | | - Jorge Sison
- Department of MedicineMedical Center ManilaManilaPhilippines
| | - Arieska A. Soenarta
- Department Cardiology and Vascular MedicineUniversity of Indonesia‐National Cardiovascular Center, Harapan KitaJakartaIndonesia
| | - Jam C. Tay
- Department of General MedicineTan Tock Seng HospitalSingaporeSingapore
| | - Yuda Turana
- Department of NeurologyFaculty of Medicine, Atma Jaya Catholic University of IndonesiaJakartaIndonesia
| | - Yuqing Zhang
- Divisions of Hypertension and Heart FailureFu Wai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Satoshi Hoshide
- Division of Cardiovascular Medicine, Department of MedicineJichi Medical University School of MedicineTochigiJapan
| | - Ji‐Guang Wang
- Department of Hypertension, Centre for Epidemiological Studies and Clinical TrialsThe Shanghai Institute of Hypertension, Shanghai Key Laboratory of Hypertension, Ruijin Hospital, Shanghai Jiaotong University School of MedicineShanghaiChina
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100
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Culshaw GJ, Costello HM, Binnie D, Stewart KR, Czopek A, Dhaun N, Hadoke PWF, Webb DJ, Bailey MA. Impaired pressure natriuresis and non-dipping blood pressure in rats with early type 1 diabetes mellitus. J Physiol 2019; 597:767-780. [PMID: 30537108 PMCID: PMC6355628 DOI: 10.1113/jp277332] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 11/28/2018] [Indexed: 01/26/2023] Open
Abstract
KEY POINTS Type 1 diabetes mellitus increases cardiovascular risk; hypertension amplifies this risk, while pressure natriuresis regulates long-term blood pressure. We induced type 1 diabetes in rats by streptozotocin injection and demonstrated a substantial impairment of pressure natriuresis: acute increases in blood pressure did not increase renal medullary blood flow, tubular sodium reabsorption was not downregulated, and proximal tubule sodium reabsorption, measured by lithium clearance, was unaffected. Insulin reduced blood glucose in diabetic rats, and rescued the pressure natriuresis response without influencing lithium clearance, but did not restore medullary blood flow. Radiotelemetry showed that diastolic blood pressure was increased in diabetic rats, and its diurnal variation was reduced. Increases in medullary blood flow and decreases in distal tubule sodium reabsorption that offset acute rises in BP are impaired in early type 1 diabetes, and this impairment could be a target for preventing hypertension in type 1 diabetes. ABSTRACT Type 1 diabetes mellitus (T1DM) substantially increases cardiovascular risk, and hypertension amplifies this risk. Blood pressure (BP) and body sodium homeostasis are linked. T1DM patients have increased total exchangeable sodium, correlating directly with BP. Pressure natriuresis is an important physiological regulator of BP. We hypothesised that pressure natriuresis would be impaired, and BP increased, in the early phase of T1DM. Male Sprague-Dawley rats were injected with streptozotocin (30-45 mg/kg) or citrate vehicle. After 3 weeks, pressure natriuresis was induced by serial arterial ligation. In non-diabetic controls, this increased fractional excretion of sodium from ∼1% to ∼25% of the filtered load (P < 0.01); in T1DM rats, the response was significantly blunted, peaking at only ∼3% (P < 0.01). Mechanistically, normal lithium clearance suggested that distal tubule sodium reabsorption was not downregulated with increased BP in T1DM rats. The pressure dependence of renal medullary perfusion, considered a key factor in the integrated response, was abolished. Insulin therapy rescued the natriuretic response in diabetic rats, restoring normal downregulation of tubular sodium reabsorption when BP was increased. However, the pressure dependence of medullary perfusion was not restored, suggesting persistent vascular dysfunction despite glycaemic control. Radiotelemetry showed that T1DM did not affect systolic BP, but mean diastolic BP was ∼5 mmHg higher than in non-diabetic controls (P < 0.01), and normal diurnal variation was reduced. In conclusion, functional impairment of renal sodium and BP homeostasis is an early manifestation of T1DM, preceding hypertension and nephropathy. Early intervention to restore pressure natriuresis in T1DM may complement reductions in cardiovascular risk achieved with glycaemic control.
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Affiliation(s)
- Geoffrey J. Culshaw
- The British Heart Foundation Centre for Cardiovascular ScienceThe Queen's Medical Research InstituteThe University of Edinburgh47 Little France CrescentEdinburghEH16 4TJUK
| | - Hannah M. Costello
- The British Heart Foundation Centre for Cardiovascular ScienceThe Queen's Medical Research InstituteThe University of Edinburgh47 Little France CrescentEdinburghEH16 4TJUK
| | - David Binnie
- The British Heart Foundation Centre for Cardiovascular ScienceThe Queen's Medical Research InstituteThe University of Edinburgh47 Little France CrescentEdinburghEH16 4TJUK
| | - Kevin R. Stewart
- The British Heart Foundation Centre for Cardiovascular ScienceThe Queen's Medical Research InstituteThe University of Edinburgh47 Little France CrescentEdinburghEH16 4TJUK
| | - Alicja Czopek
- The British Heart Foundation Centre for Cardiovascular ScienceThe Queen's Medical Research InstituteThe University of Edinburgh47 Little France CrescentEdinburghEH16 4TJUK
| | - Neeraj Dhaun
- The British Heart Foundation Centre for Cardiovascular ScienceThe Queen's Medical Research InstituteThe University of Edinburgh47 Little France CrescentEdinburghEH16 4TJUK
| | - Patrick W. F. Hadoke
- The British Heart Foundation Centre for Cardiovascular ScienceThe Queen's Medical Research InstituteThe University of Edinburgh47 Little France CrescentEdinburghEH16 4TJUK
| | - David J. Webb
- The British Heart Foundation Centre for Cardiovascular ScienceThe Queen's Medical Research InstituteThe University of Edinburgh47 Little France CrescentEdinburghEH16 4TJUK
| | - Matthew A. Bailey
- The British Heart Foundation Centre for Cardiovascular ScienceThe Queen's Medical Research InstituteThe University of Edinburgh47 Little France CrescentEdinburghEH16 4TJUK
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