1
|
Brar PC. Can Surrogate Markers Help Define Cardiovascular Disease in Youth? Curr Atheroscler Rep 2023:10.1007/s11883-023-01101-6. [PMID: 37148462 DOI: 10.1007/s11883-023-01101-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/11/2023] [Indexed: 05/08/2023]
Abstract
PURPOSE OF REVIEW Non-invasive measurements such as arterial stiffness serve as proxy surrogates for detection of early atherosclerosis and ASCVD risk stratification. These surrogate measurements are influenced by age, gender, and ethnicity and affected by the physiological changes of puberty and somatic growth in children and adolescents. RECENT FINDINGS There is no consensus of the ideal method to measure surrogate markers in youth (< 18 years of age), nor standardized imaging protocols for youth. Currently, pediatric normative data are available but not generalizable. In this review, we provide rationale on how currently used surrogates can help identify subclinical atherosclerosis in youth and affirm their role in identifying youth at risk for premature CVD.
Collapse
|
2
|
Ratter-Rieck JM, Roden M, Herder C. Diabetes and climate change: current evidence and implications for people with diabetes, clinicians and policy stakeholders. Diabetologia 2023; 66:1003-1015. [PMID: 36964771 PMCID: PMC10039694 DOI: 10.1007/s00125-023-05901-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 02/15/2023] [Indexed: 03/26/2023]
Abstract
Climate change will be a major challenge for the world's health systems in the coming decades. Elevated temperatures and increasing frequencies of heat waves, wildfires, heavy precipitation and other weather extremes can affect health in many ways, especially if chronic diseases are already present. Impaired responses to heat stress, including compromised vasodilation and sweating, diabetes-related comorbidities, insulin resistance and chronic low-grade inflammation make people with diabetes particularly vulnerable to environmental risk factors, such as extreme weather events and air pollution. Additionally, multiple pathogens show an increased rate of transmission under conditions of climate change and people with diabetes have an altered immune system, which increases the risk for a worse course of infectious diseases. In this review, we summarise recent studies on the impact of climate-change-associated risk for people with diabetes and discuss which individuals may be specifically prone to these risk conditions due to their clinical features. Knowledge of such high-risk groups will help to develop and implement tailored prevention and management strategies to mitigate the detrimental effect of climate change on the health of people with diabetes.
Collapse
Affiliation(s)
- Jacqueline M Ratter-Rieck
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany.
- German Center for Diabetes Research, Partner Düsseldorf, München-Neuherberg, Germany.
| | - Michael Roden
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
- German Center for Diabetes Research, Partner Düsseldorf, München-Neuherberg, Germany
- Department of Endocrinology and Diabetology, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Christian Herder
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
- German Center for Diabetes Research, Partner Düsseldorf, München-Neuherberg, Germany
- Department of Endocrinology and Diabetology, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| |
Collapse
|
3
|
Sagris M, Antonopoulos AS, Theofilis P, Oikonomou E, Siasos G, Tsalamandris S, Antoniades C, Brilakis ES, Kaski JC, Tousoulis D. Risk factors profile of young and older patients with myocardial infarction. Cardiovasc Res 2022; 118:2281-2292. [PMID: 34358302 DOI: 10.1093/cvr/cvab264] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 08/03/2021] [Indexed: 12/18/2022] Open
Abstract
Myocardial infarction (MI) among young adults (<45 years) represents a considerable proportion of the total heart attack incidents. The underlying pathophysiologic characteristics, atherosclerotic plaque features, and risk factors profile differ between young and older patients with MI. This review article discusses the main differences between the younger and elderly MI patients as well as the different pathogenic mechanisms underlying the development of MI in the younger. Young patients with MI often have eccentric atherosclerotic plaques with inflammatory features but fewer lesions, and are more likely to be smokers, obese, and have poor lifestyle, such as inactivity and alcohol intake. Compared to older MI patients, younger are more likely to be men, have familial-combined hyperlipidaemia and increased levels of lipoprotein-a. In addition, MI in younger patients may be related to use of cannabis, cocaine use, and androgenic anabolic steroids. Genomic differences especially in the pathways of coagulation and lipid metabolism have also been identified between young and older patients with MI. Better understanding of the risk factors and the anatomic and pathophysiologic processes in young adults can improve MI prevention and treatment strategies in this patient group. Awareness could help identify young subjects at increased risk and guide primary prevention strategies. Additional studies focusing on gene pathways related to lipid metabolism, inflammation, and coagulation are needed.
Collapse
Affiliation(s)
- Marios Sagris
- Division of Cardiovascular Medicine, 1st Cardiology Clinic, 'Hippokration' General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens 115 27, Greece
| | - Alexios S Antonopoulos
- Division of Cardiovascular Medicine, 1st Cardiology Clinic, 'Hippokration' General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens 115 27, Greece
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DU, UK
| | - Panagiotis Theofilis
- Division of Cardiovascular Medicine, 1st Cardiology Clinic, 'Hippokration' General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens 115 27, Greece
| | - Evangelos Oikonomou
- Division of Cardiovascular Medicine, 1st Cardiology Clinic, 'Hippokration' General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens 115 27, Greece
| | - Gerasimos Siasos
- Division of Cardiovascular Medicine, 1st Cardiology Clinic, 'Hippokration' General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens 115 27, Greece
- Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Sotirios Tsalamandris
- Division of Cardiovascular Medicine, 1st Cardiology Clinic, 'Hippokration' General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens 115 27, Greece
| | - Charalambos Antoniades
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DU, UK
- Division of Cardiovascular Medicine, Oxford Centre of Research Excellence, British Heart Foundation, Oxford, OX3 9DU, UK
- Division of Cardiovascular Medicine, Oxford Biomedical Research Centre, National Institute of Health Research, Oxford, OX3 9DU, UK
| | - Emmanouil S Brilakis
- Division of Cardiovascular Medicine, Center for Coronary Artery Disease, Minneapolis Heart Institute and Minneapolis Heart Institute Foundation, Abbott Northwestern Hospital, Minneapolis, MN 55407, USA
| | - Juan C Kaski
- Division of Cardiovascular Medicine, Molecular and Clinical Sciences Research Institute, St George's University of London, London SW17 0RE, UK
| | - Dimitris Tousoulis
- Division of Cardiovascular Medicine, 1st Cardiology Clinic, 'Hippokration' General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens 115 27, Greece
| |
Collapse
|
4
|
Powell AW, Urbina EM, Madueme P, Rotz S, Chin C, Taylor MD, Mays WA, Davies SM, Lane A, Berger S, Jodele S, Dandoy CE, Ryan TD. Abnormal maximal and submaximal cardiopulmonary exercise capacity in pediatric stem cell transplant recipients despite normal standard echocardiographic parameters: a pilot study. Transplant Cell Ther 2022; 28:263.e1-263.e5. [PMID: 35219851 DOI: 10.1016/j.jtct.2022.02.019] [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: 12/03/2021] [Revised: 02/10/2022] [Accepted: 02/20/2022] [Indexed: 12/01/2022]
Abstract
BACKGROUND Left ventricular systolic dysfunction is a known complication of stem cell transplant (SCT). There has been minimal research to determine if subclinical cardiac dysfunction exists in SCT patients utilizing tools other than standard echocardiography, such as maximal and submaximal effort cardiopulmonary exercise testing (CPET) and vascular function studies. OBJECTIVE The objective of this study was to determine the rate of subclinical cardiac dysfunction in patients with normal ejection fraction after SCT, identified by abnormal values by CPET, tissue-Doppler imaging, and arterial stiffness measurements and to further describe submaximal exercise test measures in this population. STUDY DESIGN A prospective cohort study of SCT survivors who were at least three years post-SCT without prior anthracycline or radiation exposure and with preserved systolic function (LV ejection fraction > 50%) was performed to evaluate for abnormalities in exercise, vascular function, and diastolic function in an effort to detect subclinical dysfunction in SCT patients. RESULTS There were 11 patients (12.4±3.8-years-old) included in the study. No patients had diastolic dysfunction. All patients completed a maximal effort exercise test, and 73% (8/11) had abnormal peak oxygen consumption (VO2peak), which is a measure of aerobic fitness. However, during submaximal effort CPET, 45% (5/11) had an abnormal VO2 at anaerobic threshold (i.e. the point in exercise where aerobic transitions to anaerobic metabolism and fatigue starts), and 64% (7/11) had an abnormal oxygen uptake efficiency slope (a measure that relates VO2peak to total ventilation). 86% (6/7) of the patients with an abnormal oxygen uptake efficiency slope ultimately had an abnormal VO2peak. There were no vascular function abnormalities. CONCLUSION Pediatric survivors of SCT often have abnormal maximal and submaximal exercise capacity without vascular or cardiac dysfunction.
Collapse
Affiliation(s)
- Adam W Powell
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH; The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH.
| | - Elaine M Urbina
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH; The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Peace Madueme
- The Division of Pediatric Cardiology, Nemours Children's Hospital, Orlando, FL
| | - Seth Rotz
- The Division of Hematology, Oncology, and Blood and Marrow Transplantation, Cleveland Clinic, Cleveland, OH
| | - Clifford Chin
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH; The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Michael D Taylor
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH; The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Wayne A Mays
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Stella M Davies
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH; The Division of Bone Marrow Transplantation, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Adam Lane
- The Division of Bone Marrow Transplantation, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Suzanne Berger
- The Division of Bone Marrow Transplantation, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Sonata Jodele
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH; The Division of Bone Marrow Transplantation, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Christopher E Dandoy
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH; The Division of Bone Marrow Transplantation, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Thomas D Ryan
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH; The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| |
Collapse
|
5
|
Puchwein-Schwepcke A, Genzel-Boroviczény O, Nussbaum C. The Endothelial Glycocalyx: Physiology and Pathology in Neonates, Infants and Children. Front Cell Dev Biol 2021; 9:733557. [PMID: 34540845 PMCID: PMC8440834 DOI: 10.3389/fcell.2021.733557] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 08/12/2021] [Indexed: 11/13/2022] Open
Abstract
The endothelial glycocalyx (EG) as part of the endothelial surface layer (ESL) is an important regulator of vascular function and homeostasis, including permeability, vascular tone, leukocyte recruitment and coagulation. Located at the interface between the endothelium and the blood stream, this highly fragile structure is prone to many disruptive factors such as inflammation and oxidative stress. Shedding of the EG has been described in various acute and chronic diseases characterized by endothelial dysfunction and angiopathy, such as sepsis, trauma, diabetes and cardiovascular disease. Circulating EG components including syndecan-1, hyaluronan and heparan sulfate are being evaluated in animal and clinical studies as diagnostic and prognostic markers in several pathologies, and advances in microscopic techniques have enabled in vivo assessment of the EG. While research regarding the EG in adult physiology and pathology has greatly advanced throughout the last decades, our knowledge of the development of the glycocalyx and its involvement in pathological conditions in the pediatric population is limited. Current evidence suggests that the EG is present early during fetal development and plays a critical role in vessel formation and maturation. Like in adults, EG shedding has been demonstrated in acute inflammatory conditions in infants and children and chronic diseases with childhood-onset. However, the underlying mechanisms and their contribution to disease manifestation and progression still need to be established. In the future, the glycocalyx might serve as a marker to identify pediatric patients at risk for vascular sequelae and as a potential target for early interventions.
Collapse
Affiliation(s)
- Alexandra Puchwein-Schwepcke
- Division of Neonatology, Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Munich, Germany.,Department of Pediatric Neurology and Developmental Medicine, University of Basel Children's Hospital, Basel, Switzerland
| | - Orsolya Genzel-Boroviczény
- Division of Neonatology, Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Munich, Germany
| | - Claudia Nussbaum
- Division of Neonatology, Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Munich, Germany
| |
Collapse
|
6
|
Zharkikh E, Dremin V, Zherebtsov E, Dunaev A, Meglinski I. Biophotonics methods for functional monitoring of complications of diabetes mellitus. JOURNAL OF BIOPHOTONICS 2020; 13:e202000203. [PMID: 32654427 DOI: 10.1002/jbio.202000203] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/02/2020] [Accepted: 07/04/2020] [Indexed: 06/11/2023]
Abstract
The prevalence of diabetes complications is a significant public health problem with a considerable economic cost. Thus, the timely diagnosis of complications and prevention of their development will contribute to increasing the length and quality of patient life, and reducing the economic costs of their treatment. This article aims to review the current state-of-the-art biophotonics technologies used to identify the complications of diabetes mellitus and assess the quality of their treatment. Additionally, these technologies assess the structural and functional properties of biological tissues, and they include capillaroscopy, laser Doppler flowmetry and hyperspectral imaging, laser speckle contrast imaging, diffuse reflectance spectroscopy and imaging, fluorescence spectroscopy and imaging, optical coherence tomography, optoacoustic imaging and confocal microscopy. Recent advances in the field of optical noninvasive diagnosis suggest a wider introduction of biophotonics technologies into clinical practice and, in particular, in diabetes care units.
Collapse
Affiliation(s)
- Elena Zharkikh
- Research & Development Center of Biomedical Photonics, Orel State University, Orel, Russia
| | - Viktor Dremin
- Research & Development Center of Biomedical Photonics, Orel State University, Orel, Russia
- School of Engineering and Applied Science, Aston University, Birmingham, UK
| | - Evgeny Zherebtsov
- Research & Development Center of Biomedical Photonics, Orel State University, Orel, Russia
- Optoelectronics and Measurement Techniques unit, University of Oulu, Oulu, Finland
| | - Andrey Dunaev
- Research & Development Center of Biomedical Photonics, Orel State University, Orel, Russia
| | - Igor Meglinski
- School of Engineering and Applied Science, Aston University, Birmingham, UK
- Optoelectronics and Measurement Techniques unit, University of Oulu, Oulu, Finland
- Interdisciplinary Laboratory of Biophotonics, National Research Tomsk State University, Tomsk, Russia
- Institute of Engineering Physics for Biomedicine (PhysBio), National Research Nuclear University-MEPhI, Moscow, Russia
- School of Life and Health Sciences, Aston University, Birmingham, UK
- Department of Histology, Cytology and Embryology, Institute of Clinical Medicine N.V. Sklifosovsky, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| |
Collapse
|
7
|
|
8
|
Lespagnol E, Dauchet L, Pawlak-Chaouch M, Balestra C, Berthoin S, Feelisch M, Roustit M, Boissière J, Fontaine P, Heyman E. Early Endothelial Dysfunction in Type 1 Diabetes Is Accompanied by an Impairment of Vascular Smooth Muscle Function: A Meta-Analysis. Front Endocrinol (Lausanne) 2020; 11:203. [PMID: 32362871 PMCID: PMC7180178 DOI: 10.3389/fendo.2020.00203] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 03/23/2020] [Indexed: 12/15/2022] Open
Abstract
Background: A large yet heterogeneous body of literature exists suggesting that endothelial dysfunction appears early in type 1 diabetes, due to hyperglycemia-induced oxidative stress. The latter may also affect vascular smooth muscles (VSM) function, a layer albeit less frequently considered in that pathology. This meta-analysis aims at evaluating the extent, and the contributing risk factors, of early endothelial dysfunction, and of the possible concomitant VSM dysfunction, in type 1 diabetes. Methods: PubMed, Web of Sciences, Cochrane Library databases were screened from their respective inceptions until October 2019. We included studies comparing vasodilatory capacity depending or not on endothelium (i.e., endothelial function or VSM function, respectively) in patients with uncomplicated type 1 diabetes and healthy controls. Results: Fifty-eight articles studying endothelium-dependent function, among which 21 studies also assessed VSM, were included. Global analyses revealed an impairment of standardized mean difference (SMD) (Cohen's d) of endothelial function: -0.61 (95% CI: -0.79, -0.44) but also of VSM SMD: -0.32 (95% CI: -0.57, -0.07). The type of stimuli used (i.e., exercise, occlusion-reperfusion, pharmacological substances, heat) did not influence the impairment of the vasodilatory capacity. Endothelial dysfunction appeared more pronounced within macrovascular than microvascular beds. The latter was particularly altered in cases of poor glycemic control [HbA1c > 67 mmol/mol (8.3%)]. Conclusions: This meta-analysis not only corroborates the presence of an early impairment of endothelial function, even in response to physiological stimuli like exercise, but also highlights a VSM dysfunction in children and adults with type 1 diabetes. Endothelial dysfunction seems to be more pronounced in large than small vessels, fostering the debate on their relative temporal appearance.
Collapse
Affiliation(s)
- Elodie Lespagnol
- Univ. Lille, Univ. Artois, Univ. Littoral Côte d'Opale, ULR 7369 - URePSSS - Unité de Recherche Pluridisciplinaire Sport Santé Société, Lille, France
| | - Luc Dauchet
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167 - RID-AGE - Facteurs de risque et déterminants moléculaires des maladies liées au vieillissement, Lille, France
| | - Mehdi Pawlak-Chaouch
- Univ. Lille, Univ. Artois, Univ. Littoral Côte d'Opale, ULR 7369 - URePSSS - Unité de Recherche Pluridisciplinaire Sport Santé Société, Lille, France
| | - Costantino Balestra
- Environmental and Occupational (Integrative) Physiology Laboratory, Haute École Bruxelles-Brabant HE2B, Brussels, Belgium
| | - Serge Berthoin
- Univ. Lille, Univ. Artois, Univ. Littoral Côte d'Opale, ULR 7369 - URePSSS - Unité de Recherche Pluridisciplinaire Sport Santé Société, Lille, France
| | - Martin Feelisch
- Clinical and Experimental Sciences, Faculty of Medicine, University Hospital Southampton NHS Foundation Trust, University of Southampton, Southampton, United Kingdom
| | - Matthieu Roustit
- Univ. Grenoble Alpes, HP2, Inserm, CHU Grenoble Alpes, Grenoble, France
| | - Julien Boissière
- Univ. Lille, Univ. Artois, Univ. Littoral Côte d'Opale, ULR 7369 - URePSSS - Unité de Recherche Pluridisciplinaire Sport Santé Société, Lille, France
| | - Pierre Fontaine
- Département d'endocrinologie, Diabète et maladies métaboliques, Hôpital Huriez, Université de Lille, Lille, France
| | - Elsa Heyman
- Univ. Lille, Univ. Artois, Univ. Littoral Côte d'Opale, ULR 7369 - URePSSS - Unité de Recherche Pluridisciplinaire Sport Santé Société, Lille, France
- *Correspondence: Elsa Heyman
| |
Collapse
|
9
|
Roitblat Y, Buchris N, Hanai J, Cohensedgh S, Frig-Levinson E, Burger J, Shterenshis M. The range of normative surface skin temperature changes in adolescents: prospective multicenter study. Int J Adolesc Med Health 2019; 33:/j/ijamh.ahead-of-print/ijamh-2018-0199/ijamh-2018-0199.xml. [PMID: 31075081 DOI: 10.1515/ijamh-2018-0199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 10/05/2018] [Indexed: 01/17/2023]
Abstract
AIM We aimed to establish a normative range of surface skin temperature (SST) changes due to blood redistribution in adolescents and to register the time needed for complete postural change-related blood redistribution. METHODS The healthy volunteers (age 15-18, n = 500, M 217, F 283) were recruited for this prospective multicenter study. The volunteers were asked to keep one extremity down and another extremity up in supine rest, sitting with straight legs, and upright rest. We obtained temperature readings being taken from the tips of the middle fingers and temperature readings from the tips of the first toes at the ambient temperature of 25 °C and 30 °C. The control group consisted of a 100 of adult volunteers. RESULTS The resting temperature of the middle fingers for a sitting participant was 28.6 ± 0.8 °C. The physiological change of this temperature during body position changes was 4.5 ± 1.1 °C and for most of the participants remained within the 26.5-31.5 °C range at 25 °C. For the toe, physiological skin temperature range was 25.5-33 °C. At 30 °C, these ranges were 27-33 °C for the fingers and 27-34 °C for the toes. On average, 2-3 min were needed for such temperature changes. CONCLUSION At normal room temperature, the SST of thermoneutral adolescents may vary within a range of approximately 5 °C only due to the blood redistribution in the body. This range is specific for each person due to individual peculiarities of the vasomotor activity. This normative range of SSTs should be taken into account during investigations of thermoregulation.
Collapse
Affiliation(s)
- Yulia Roitblat
- Department of Sciences, Belkind School for Special Education, Rishon-LeZion, Israel
| | - Noa Buchris
- Department of Sciences, El Camino Real Charter High School, Woodland Hills, CA, USA
| | - Jacob Hanai
- Department of Sciences, Montgomery Bell Academy, Nashville, TN, USA
| | - Sabrina Cohensedgh
- Science Research Department, Milken Community High School, Los Angeles, CA, USA.,Science Research Department, Alexander Muss High School in Israel (AMHSI) Affiliated to Alexander Muss Institute for Israel Education (AMIIE), Hod HaSharon 45102, Israel
| | - Eden Frig-Levinson
- Science Research Department, Milken Community High School, Los Angeles, CA, USA.,Science Research Department, Alexander Muss High School in Israel (AMHSI) Affiliated to Alexander Muss Institute for Israel Education (AMIIE), Hod HaSharon 45102, Israel
| | - Jacob Burger
- Department of Anatomy and Physiology, Sharon High School, Sharon, MA, USA
| | - Michael Shterenshis
- Science Research Department, Alexander Muss High School in Israel (AMHSI) Affiliated to Alexander Muss Institute for Israel Education (AMIIE), Aliyat HaNoar 9, Hod HaSharon 45102, Israel, Phone: +97254-337-9865
| |
Collapse
|
10
|
Khoury M, Urbina EM. Cardiac and Vascular Target Organ Damage in Pediatric Hypertension. Front Pediatr 2018; 6:148. [PMID: 29881718 PMCID: PMC5976785 DOI: 10.3389/fped.2018.00148] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 05/03/2018] [Indexed: 12/17/2022] Open
Abstract
Atherosclerosis begins in youth and is associated with the presence of numerous modifiable cardiovascular (CV) risk factors, including hypertension. Pediatric hypertension has increased in prevalence since the 1980s but has plateaued in recent years. Elevated blood pressure levels are associated with impairments to cardiac and vascular structure and both systolic and diastolic function. Blood pressure-related increases in left ventricular mass (LVM) and abnormalities in cardiac function are associated with hard CV events in adulthood. In addition to cardiac changes, key vascular changes occur in hypertensive youth and adults. These include thickening of the arteries, increased arterial stiffness, and decreased endothelial function. This review summarizes the epidemiologic burden of pediatric hypertension, its associations with target organ damage (TOD) of the cardiac and vascular systems, and the impact of these adverse CV changes on morbidity and mortality in adulthood.
Collapse
Affiliation(s)
| | - Elaine M. Urbina
- Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
| |
Collapse
|
11
|
Gourgari E, Dabelea D, Rother K. Modifiable Risk Factors for Cardiovascular Disease in Children with Type 1 Diabetes: Can Early Intervention Prevent Future Cardiovascular Events? Curr Diab Rep 2017; 17:134. [PMID: 29101482 PMCID: PMC5670186 DOI: 10.1007/s11892-017-0968-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
PURPOSE OF REVIEW Patients with type 1 diabetes have increased risk for cardiovascular disease. The purpose of this review is to examine the following: i) current evidence for subclinical cardiovascular disease (CVD) in children with type 1 diabetes (T1DM) ii) known modifiable risk factors for CVD and their relationship to subclinical CVD in this population iii) studies that have addressed these risk factors in order to improve CVD outcomes in children with T1DM RECENT FINDINGS: Subclinical CVD presents in children as increased carotid intima-media thickness, increased arterial stiffness, and endothelial and myocardial dysfunction. Modifiable risk factors for CVD include hyperglycemia, hyperlipidemia, obesity, hypertension, depression, and autonomic dysfunction. Very few randomized controlled studies have been done in children with T1DM to examine how modification of these risk factors can affect their CVD. Children with T1DM have subclinical CVD and multiple modifiable risk factors for CVD. More research is needed to define how modification of these factors affects the progression of CVD.
Collapse
Affiliation(s)
- Evgenia Gourgari
- Department of Pediatrics, Georgetown University, Washington DC, USA
- Section on Endocrinology and Genetics, Program on Developmental Endocrinology & Genetics (PDEGEN) and Pediatric Endocrinology Inter-Institute Training Program, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), Bethesda, MD USA
| | - Dana Dabelea
- Department of Epidemiology, Colorado School of Public Health, University of Colorado Denver, Aurora, CO USA
| | - Kristina Rother
- Section on Pediatric Diabetes and Metabolism, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), National Institutes of Health, Bethesda, MD USA
| |
Collapse
|
12
|
Houben AJHM, Martens RJH, Stehouwer CDA. Assessing Microvascular Function in Humans from a Chronic Disease Perspective. J Am Soc Nephrol 2017; 28:3461-3472. [PMID: 28904002 DOI: 10.1681/asn.2017020157] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Microvascular dysfunction (MVD) is considered a crucial pathway in the development and progression of cardiometabolic and renal disease and is associated with increased cardiovascular mortality. MVD often coexists with or even precedes macrovascular disease, possibly due to shared mechanisms of vascular damage, such as inflammatory processes and oxidative stress. One of the first events in MVD is endothelial dysfunction. With the use of different physiologic or pharmacologic stimuli, endothelium-dependent (micro)vascular reactivity can be studied. This reactivity depends on the balance between various mediators, including nitric oxide, endothelin, and prostanoids, among others. The measurement of microvascular (endothelial) function is important to understand the pathophysiologic mechanisms that contribute to MVD and the role of MVD in the development and progression of cardiometabolic/renal disease. Here, we review a selection of direct, noninvasive techniques for measuring human microcirculation, with a focus on methods, interpretation, and limitations from the perspective of chronic cardiometabolic and renal disease.
Collapse
Affiliation(s)
- Alfons J H M Houben
- Department of Internal Medicine, Maastricht University Medical Center+, Maastricht, The Netherlands; and .,CARIM School for Cardiovascular Diseases and
| | - Remy J H Martens
- Department of Internal Medicine, Maastricht University Medical Center+, Maastricht, The Netherlands; and.,School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
| | - Coen D A Stehouwer
- Department of Internal Medicine, Maastricht University Medical Center+, Maastricht, The Netherlands; and.,CARIM School for Cardiovascular Diseases and
| |
Collapse
|
13
|
Skrzypczyk P, Pańczyk-Tomaszewska M. Methods to evaluate arterial structure and function in children - State-of-the art knowledge. Adv Med Sci 2017; 62:280-294. [PMID: 28501727 DOI: 10.1016/j.advms.2017.03.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Revised: 02/17/2017] [Accepted: 03/07/2017] [Indexed: 12/24/2022]
Abstract
BACKGROUND With increasing rates of hypertension, obesity, and diabetes in the pediatric population, wide available, and reproducible methods are necessary to evaluate arterial structure and function in children and adolescents. METHODS MEDLINE/Pubmed was searched for articles published in years 2012-2017 on methodology of, current knowledge on, and limitations of the most commonly used methods to evaluate central, proximal and coronary arteries, as well as endothelial function in pediatric patients. RESULTS Among 1528 records screened (including 1475 records from years 2012 to 2017) 139 papers were found suitable for the review. Following methods were discussed in this review article: ultrasound measurements of the intima-media thickness, coronary calcium scoring using computed tomography, arterial stiffness measurements (pulse wave velocity and pulse wave analysis, carotid artery distensibility, pulse pressure, and ambulatory arterial stiffness index), ankle-brachial index, and methods to evaluate vascular endothelial function (flow-mediated vasodilation, peripheral arterial tonometry, Doppler laser flowmetry, and cellular and soluble markers of endothelial dysfunction). CONCLUSIONS Ultrasonographic measurement of carotid intima-media thickness and measurement of pulse wave velocity (by oscillometry or applanation tonometry) are highly reproducible methods applicable for both research and clinical practice with proved applicability for children aged ≥6 years or with height ≥120cm. Evaluation of ambulatory arterial stiffness index by ambulatory blood pressure monitoring is another promising option in pediatric high-risk patients. Clearly, further studies are necessary to evaluate usefulness of these and other methods for the detection of subclinical arterial damage in children.
Collapse
|
14
|
Goldstein BH, Urbina EM, Khoury PR, Gao Z, Amos MA, Mays WA, Redington AN, Marino BS. Endothelial Function and Arterial Stiffness Relate to Functional Outcomes in Adolescent and Young Adult Fontan Survivors. J Am Heart Assoc 2016; 5:JAHA.116.004258. [PMID: 27664807 PMCID: PMC5079057 DOI: 10.1161/jaha.116.004258] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Background Fontan survivors demonstrate diminished vascular function and functional outcomes, but the relationships between these measures have not been established. Methods and Results We performed a cross‐sectional study of 60 Fontan survivors (52% male) with a mean age of 13.9±4.1 years and mean Fontan duration of 9.9±4.2 years. Multimodality assessment of endothelial function (reactive hyperemia index and flow‐mediated dilation) and arterial stiffness (augmentation index and baseline pulse amplitude) was performed with peripheral arterial tonometry and brachial flow‐mediated dilation. Aerobic capacity was determined using cardiopulmonary exercise testing; mean peak and percentage of predicted oxygen consumption (VO2) were 27.8±7.6 mL/kg per minute and 71.0±21.2%, respectively. Quality of life and physical activity were assessed using the Pediatric Quality of Life Inventory (PedsQL) and the Physical Activity Questionnaire. Vascular measures served as predictor variables, whereas functional measures served as outcome variables. In all cases, worse vascular measures were associated with worse functional measures. Flow‐mediated dilation–derived reactive hyperemia index (P<0.05) was positively associated with VO2 at anaerobic threshold. Peripheral arterial tonometry–derived baseline pulse amplitude (P<0.05) was negatively associated with the ratio of minute ventilation to carbon dioxide at anaerobic threshold. Flow‐mediated dilation–derived reactive hyperemia index and peripheral arterial tonometry–derived augmentation index (P<0.05) were positively and negatively associated, respectively, with peak VO2. Maximum flow‐mediated dilation (P<0.05) was positively associated with Physical Activity Questionnaire score. Peripheral arterial tonometry–derived augmentation index and baseline pulse amplitude (P<0.05) were negatively associated with parent‐reported PedsQL total and physical heath summary scores. Conclusions Increased arterial stiffness and decreased endothelial function are associated with lower aerobic capacity, physical activity, and quality of life in adolescent and young adult Fontan survivors. Understanding the cause–effect relationship between vascular function and functional outcomes is an important next step.
Collapse
Affiliation(s)
- Bryan H Goldstein
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Elaine M Urbina
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Philip R Khoury
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Zhiqian Gao
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Michelle A Amos
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Wayne A Mays
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Andrew N Redington
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Bradley S Marino
- Division of Cardiology, Northwestern University Feinberg School of Medicine and Lurie Children's Hospital, Chicago, IL
| |
Collapse
|
15
|
Abnormalities of vascular structure and function in pediatric hypertension. Pediatr Nephrol 2016; 31:1061-70. [PMID: 26275663 PMCID: PMC4754169 DOI: 10.1007/s00467-015-3188-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 07/01/2015] [Accepted: 07/27/2015] [Indexed: 12/17/2022]
Abstract
Hypertension is associated with adverse cardiovascular (CV) events in adults. Measures of vascular structure and function, including increased carotid intima-media thickness (cIMT) and elevated arterial stiffness predict hard CV events in adulthood. Newer data suggest that abnormalities in target organ damage are occurring in adolescents and young adults with high blood pressure. In this review, we discuss the techniques for measuring vascular dysfunction in young people and the evidence linking blood pressure levels to this type of target organ damage.
Collapse
|
16
|
Shah AS, Wadwa RP, Dabelea D, Hamman RF, D’Agostino R, Marcovina S, Daniels SR, Dolan LM, Fino NF, Urbina EM. Arterial stiffness in adolescents and young adults with and without type 1 diabetes: the SEARCH CVD study. Pediatr Diabetes 2015; 16:367-74. [PMID: 25912292 PMCID: PMC4712021 DOI: 10.1111/pedi.12279] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 03/31/2015] [Accepted: 04/01/2015] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Arterial stiffness is a useful parameter to predict future cardiovascular disease. OBJECTIVE We sought to compare arterial stiffness in adolescents and young adults with and without type 1 diabetes (T1D) and explore the risk factors associated with the differences observed. SUBJECTS AND METHODS Carotid-femoral pulse wave velocity (PWV), augmentation index (AI75), and brachial distensibility (BrachD) were measured in 402 adolescents and young adults with T1D (age 18.8 ± 3.3 yr, T1D duration 9.8 ± 3.8 yr) and 206 non-diabetic controls that were frequency-matched by age, sex, and race/ethnicity in a cross-sectional study. General linear models were used to explore variables associated with an increase in arterial stiffness after adjustment for demographic and metabolic covariates. RESULTS T1D status was associated with a higher PWV (5.9 ± 0.05 vs. 5.7 ± 0.1 m/s), AI75 (1.3 ± 0.6 vs. -1.9 ± 0.7%), and lower BrachD (6.2 ± 0.1 vs. 6.5 ± 0.1%Δ/mmHg), all p < 0.05. In multivariate models, age, sex, race, adiposity, blood pressure, lipids, and the presence of microalbuminuria were found to be independent correlates of increased arterial stiffness. After adjustment for these risk factors, T1D status was still significantly associated with arterial stiffness (p < 0.05). CONCLUSIONS Peripheral and central subclinical vascular changes are present in adolescents and young adults with T1D compared to controls. Increased cardiovascular risk factors alone do not explain the observed differences in arterial stiffness among cases and controls. Identifying other risk factors associated with increased arterial stiffness in youth with T1D is critical to prevent future vascular complications.
Collapse
Affiliation(s)
- Amy S. Shah
- Department of Pediatrics, Cincinnati Children’s Hospital and University of Cincinnati, Cincinnati, OH, USA
| | - R. Paul Wadwa
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, USA
| | - Dana Dabelea
- Department of Epidemiology, Colorado School of Public Health, University of Colorado Denver, Aurora, CO, USA
| | - Richard F. Hamman
- Department of Epidemiology, Colorado School of Public Health, University of Colorado Denver, Aurora, CO, USA
| | - Ralph D’Agostino
- Department of Biostatistical Sciences, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Santica Marcovina
- Northwest Lipid Research Laboratories, University of Washington, Seattle, WA, USA
| | - Stephen R. Daniels
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, USA
| | - Lawrence M. Dolan
- Department of Pediatrics, Cincinnati Children’s Hospital and University of Cincinnati, Cincinnati, OH, USA
| | - Nora F. Fino
- Department of Biostatistical Sciences, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Elaine M. Urbina
- Department of Pediatrics, Cincinnati Children’s Hospital and University of Cincinnati, Cincinnati, OH, USA
| |
Collapse
|