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Al-Beltagi M, Bediwy AS, Saeed NK. Insulin-resistance in paediatric age: Its magnitude and implications. World J Diabetes 2022; 13:282-307. [PMID: 35582667 PMCID: PMC9052009 DOI: 10.4239/wjd.v13.i4.282] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 03/12/2022] [Accepted: 03/27/2022] [Indexed: 02/06/2023] Open
Abstract
Insulin resistance (IR) is insulin failure in normal plasma levels to adequately stimulate glucose uptake by the peripheral tissues. IR is becoming more common in children and adolescents than before. There is a strong association between obesity in children and adolescents, IR, and the metabolic syndrome components. IR shows marked variation among different races, crucial to understanding the possible cardiovascular risk, specifically in high-risk races or ethnic groups. Genetic causes of IR include insulin receptor mutations, mutations that stimulate autoantibody production against insulin receptors, or mutations that induce the formation of abnormal glucose transporter 4 molecules or plasma cell membrane glycoprotein-1 molecules; all induce abnormal energy pathways and end with the development of IR. The parallel increase of IR syndrome with the dramatic increase in the rate of obesity among children in the last few decades indicates the importance of environmental factors in increasing the rate of IR. Most patients with IR do not develop diabetes mellitus (DM) type-II. However, IR is a crucial risk factor to develop DM type-II in children. Diagnostic standards for IR in children are not yet established due to various causes. Direct measures of insulin sensitivity include the hyperinsulinemia euglycemic glucose clamp and the insulin-suppression test. Minimal model analysis of frequently sampled intravenous glucose tolerance test and oral glucose tolerance test provide an indirect estimate of metabolic insulin sensitivity/resistance. The main aim of the treatment of IR in children is to prevent the progression of compensated IR to decompensated IR, enhance insulin sensitivity, and treat possible complications. There are three main lines for treatment: Lifestyle and behavior modification, pharmacotherapy, and surgery. This review will discuss the magnitude, implications, diagnosis, and treatment of IR in children.
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Affiliation(s)
- Mohammed Al-Beltagi
- Department of Pediatrics, Faculty of Medicine, Tanta University, Tanta 31511, Egypt
- Department of Pediatrics, University Medical Center, Arabian Gulf University, Dr. Sulaiman Al Habib Medical Group, Manama 26671, Bahrain
| | - Adel Salah Bediwy
- Department of Chest Disease, Faculty of Medicine, Tanta University, Tanta 31527, Egypt
- Department of Pulmonology, University Medical Center, Arabian Gulf University, Dr. Sulaiman Al Habib Medical Group, Manama 26671, Bahrain
| | - Nermin Kamal Saeed
- Medical Microbiology Section, Department of Pathology, Salmaniya Medical Complex, Ministry of Health, Manama 12, Bahrain
- Microbiology Section, Department of Pathology, Irish Royal College of Surgeon, Busaiteen 15503, Bahrain
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Ma D, Chen Z, Wang Y, Yu X, Xin Q, Chen Y. Effects of rapid growth on fasting insulin and insulin resistance: a system review and meta-analysis. Eur J Clin Nutr 2020; 75:1193-1204. [PMID: 33328601 DOI: 10.1038/s41430-020-00831-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 10/31/2020] [Accepted: 11/30/2020] [Indexed: 11/09/2022]
Abstract
Infants with congenital deficiency have high risk of glucose metabolism disorder, and often experience rapid growth in early childhood. However, the role of rapid growth on glucose metabolism is controversial. We conducted a systematic review and meta-analysis to examine the association of rapid growth with fasting insulin and homeostasis model assessment of insulin resistance (HOMA-IR). We searched EMBASE and Medline for English articles, and CNKI and WANFANG database for Chinese articles. Studies measuring the associations between rapid growth and insulin or HOMA-IR were included. Relevant information was extracted independently by two reviewers. Random effects model was adopted for combined and stratified analyses. At last, twenty-two relevant studies for insulin and 20 for HOMA-IR were identified. Rapid growth was associated with high insulin (weighted mean differences [WMD] 5.544, 95% confidence interval [CI] [1.436, 9.653], P = 0.008) and high HOMA-IR (WMD 0.194, 95% CI [0.098, 0.290], P < 0.001). This elevated association was statistically significant in rapid growth subjects that were >6 years old, full-term, and from developed countries. However, rapid growth among low birth weight subjects did not lead to high insulin and HOMA-IR, but decreased HOMA-IR among preterm children (WMD -0.305, 95% CI [-0.607, -0.004], P = 0.047). Follow-up age was positively correlated with HOMA-IR (r = 0.095, P < 0.001). This meta-analysis suggested that rapid growth would result in high insulin and HOMA-IR, especially for full-term infants. However, rapid growth is relatively harmless for subjects who are <6 years old, low birth weight or SGA, and is even protective for preterm subjects.
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Affiliation(s)
- Defu Ma
- School of Public Health, Peking University Health Science Center, Beijing, China
| | - Zekun Chen
- School of Public Health, Peking University Health Science Center, Beijing, China
| | - Ying Wang
- School of Public Health, Peking University Health Science Center, Beijing, China
| | - Xue Yu
- School of Public Health, Peking University Health Science Center, Beijing, China
| | - Qinghua Xin
- Academy of Occupational Health and Occupational Medicine, Shandong, China
| | - Yunli Chen
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
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Bozkurt L, Göbl CS, Rami-Merhar B, Winhofer Y, Baumgartner-Parzer S, Schober E, Kautzky-Willer A. The Cross-Link between Adipokines, Insulin Resistance and Obesity in Offspring of Diabetic Pregnancies. Horm Res Paediatr 2017; 86:300-308. [PMID: 27657553 DOI: 10.1159/000448076] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 06/27/2016] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND/AIMS Intrauterine exposure to hyperglycemia might impact the risk for future metabolic deteriorations. The aim was to characterize the association between different adipokines and neuropeptides and insulin resistance and BMI-SDS in children affected by diabetes during pregnancy. METHODS 76 children (mean age: 6 years, male:female = 36:40) born to mothers with gestational or pregestational diabetes and nondiabetic women were consecutively included for clinical assessments comprising anthropometrics and metabolic characterization [2-hour glucose tolerance test, leptin, peptide YY (PYY), neuropeptide Y (NPY), ghrelin, growth differentiation factor 15 (GDF-15), and adiponectin]. RESULTS The level of insulin resistance was associated with BMI-SDS (p < 0.001), leptin (p < 0.001), ghrelin (p = 0.002), age (p < 0.002) and negatively with GDF-15 (p = 0.005). BMI-SDS, leptin and GDF-15 were shown to have independent effects on insulin resistance by using a multiple regression model (additionally including age, and maternal diabetes status), whereas ghrelin lost significance (p = 0.345). No differences were present in adipokines and insulin resistance when children were evaluated by maternal glucometabolic status. However, we observed more strengthened associations between insulin resistance and covariates BMI-SDS and leptin in offspring of diabetic pregnancies. CONCLUSIONS Young children with elevated BMI or leptin are affected by higher indices of insulin resistance, particularly those who were born to mothers with diabetes during pregnancy. The impact of this special risk constellation should be considered in future studies.
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Affiliation(s)
- Latife Bozkurt
- Department of Internal Medicine III, Division of Endocrinology and Metabolism, Unit of Gender Medicine, Medical University of Vienna, Vienna, Austria
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Joo Turoni C, Chaila Z, Chahla R, Bazán de Casella MC, Peral de Bruno M. Vascular Function in Children with Low Birthweight and Its Relationship with Early Markers of Cardiovascular Risk. Horm Res Paediatr 2017; 85:396-405. [PMID: 27173666 DOI: 10.1159/000445949] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 04/05/2016] [Indexed: 11/19/2022] Open
Abstract
UNLABELLED Low birthweight (LBW) increases the risk of developing cardiovascular diseases (CVD). Few studies have established its impact at early ages. AIMS To study endothelial function (EF) and arterial stiffness (AS) and their relationship to early markers of CVD risk in children with LBW. METHODS In children with LBW (4-6 years; n = 53), anthropometric, haemodynamic and laboratory parameters, including HOMA-IR, hs-CRP, adiponectin and leptin, were determined. EF and AS were evaluated by digital pulse plethysmography. Data were compared with a control group (n = 33). RESULTS In both groups, anthropometric parameters remained within normal limits. Insulin and HOMA-IR had normal values, but they were significantly augmented in LBW children. LBW children showed higher leptin and hs-CRP levels than the control group. The LBW group had decreased EF (37.5 ± 5.6%) compared with the control group (75.0 ± 11.9%; p < 0.01), however without differences in AS. In LBW children, EF was negatively correlated with waist circumference, leptin, hs-CRP and with a cumulative score of risk factors. CONCLUSIONS LBW children display altered EF that is related to early changes in CVD risk factors. The differences found in the metabolic parameters might indicate a pro-inflammatory state. This hypothesis is also supported by the laboratory findings and the correlation between EF and the number of CVD risk factors, suggesting that very early lifestyle interventions may be needed.
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Affiliation(s)
- Claudio Joo Turoni
- Departamento Biomx00E9;dico-Fisiologx00ED;a, Facultad de Medicina, UNT, INSIBO-CONICET, Tucumx00E1;n, Argentina
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Huus K, Åkerman L, Raustorp A, Ludvigsson J. Physical Activity, Blood Glucose and C-Peptide in Healthy School-Children, a Longitudinal Study. PLoS One 2016; 11:e0156401. [PMID: 27270732 PMCID: PMC4896630 DOI: 10.1371/journal.pone.0156401] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 05/15/2016] [Indexed: 11/24/2022] Open
Abstract
Aim To further elucidate the relationship between physical activity and several risk factors for development of diabetes (glucose, C-peptide and obesity) over time. Methods A prospective longitudinal study where physical activity was measured on 199 children from Kalmar and Linköping at age 8, and the same 107 children from Linköping again at age 12. Anthropometric data was collected and blood was analyzed for C-peptide and f-glucose. The children in the study were representative for the general Swedish child population, and on an average lean. Results High physical activity was related to lower C-peptide at age 8 and 12. This correlation was especially pronounced in boys, who also were more physically active than girls at both time points. The association seen at 8 years of age was similar at age 12 in most children. Children with higher BMI Z-Score had a higher fasting C-peptide (age 12) but linear regression showed that children with more steps per day were less likely to have a higher fasting C-peptide irrespective of BMI. Longitudinal follow-up showed that a decrease in physical activity increased insulin resistance and β-cell load. Conclusions Already in young children, physical activity improves insulin sensitivity and decreases the need of C-peptide over time. This seems to become even more pronounced with increasing age when children are followed longitudinally. Low physical activity increases the load on insulin producing β-cells, might increase the risk for both type 1- and 2 diabetes.
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Affiliation(s)
- Karina Huus
- CHILD research group, Department of Nursing, School of Health and Welfare, SE- 551 11 Jönköping, Sweden
- * E-mail:
| | - Linda Åkerman
- Division of Pediatrics, Department of Clinical and Experimental Medicine, Linköping University, SE- 58185 Linköping, Sweden
| | - Anders Raustorp
- Linnaeus University, School of Sport Sciences, SE-39182 Kalmar, Sweden
- Department of Nutrition and Sport Sciences, University of Gothenburg, SE-40530 Gothenburg, Sweden
| | - Johnny Ludvigsson
- Division of Pediatrics, Department of Clinical and Experimental Medicine, Linköping University, SE- 58185 Linköping, Sweden
- Pediatric Clinic, Östergötland, County Council, SE -58185 Linköping, Sweden
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Gaudet L, Ferraro ZM, Wen SW, Walker M. Maternal obesity and occurrence of fetal macrosomia: a systematic review and meta-analysis. BIOMED RESEARCH INTERNATIONAL 2014; 2014:640291. [PMID: 25544943 PMCID: PMC4273542 DOI: 10.1155/2014/640291] [Citation(s) in RCA: 167] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 11/09/2014] [Indexed: 12/15/2022]
Abstract
OBJECTIVE To determine a precise estimate for the contribution of maternal obesity to macrosomia. DATA SOURCES The search strategy included database searches in 2011 of PubMed, Medline (In-Process & Other Non-Indexed Citations and Ovid Medline, 1950-2011), and EMBASE Classic + EMBASE. Appropriate search terms were used for each database. Reference lists of retrieved articles and review articles were cross-referenced. METHODS OF STUDY SELECTION All studies that examined the relationship between maternal obesity (BMI ≥30 kg/m(2)) (pregravid or at 1st prenatal visit) and fetal macrosomia (birth weight ≥4000 g, ≥4500 g, or ≥90th percentile) were considered for inclusion. TABULATION, INTEGRATION, AND RESULTS Data regarding the outcomes of interest and study quality were independently extracted by two reviewers. Results from the meta-analysis showed that maternal obesity is associated with fetal overgrowth, defined as birth weight ≥ 4000 g (OR 2.17, 95% CI 1.92, 2.45), birth weight ≥4500 g (OR 2.77,95% CI 2.22, 3.45), and birth weight ≥90% ile for gestational age (OR 2.42, 95% CI 2.16, 2.72). CONCLUSION Maternal obesity appears to play a significant role in the development of fetal overgrowth. There is a critical need for effective personal and public health initiatives designed to decrease prepregnancy weight and optimize gestational weight gain.
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Affiliation(s)
- Laura Gaudet
- University of Ottawa, Faculty of Medicine, 451 Smyth Road, Ottawa, ON, Canada K1H 8M5
- Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology & Newborn Care, The Ottawa Hospital, 501 Smyth Road, Ottawa, ON, Canada K1H 8L6
- Ottawa Hospital Research Institute, Ottawa, ON, Canada K1H 8L6
| | - Zachary M. Ferraro
- Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology & Newborn Care, The Ottawa Hospital, 501 Smyth Road, Ottawa, ON, Canada K1H 8L6
- Healthy Active Living and Obesity (HALO) Research Group, Children's Hospital of Eastern Ontario, 401 Smyth Road, Ottawa, ON, Canada K1H 8L1
| | - Shi Wu Wen
- Ottawa Hospital Research Institute, Ottawa, ON, Canada K1H 8L6
| | - Mark Walker
- University of Ottawa, Faculty of Medicine, 451 Smyth Road, Ottawa, ON, Canada K1H 8M5
- Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology & Newborn Care, The Ottawa Hospital, 501 Smyth Road, Ottawa, ON, Canada K1H 8L6
- Ottawa Hospital Research Institute, Ottawa, ON, Canada K1H 8L6
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Islam ST, Srinivasan S, Craig ME. Environmental determinants of type 1 diabetes: a role for overweight and insulin resistance. J Paediatr Child Health 2014; 50:874-9. [PMID: 24893825 DOI: 10.1111/jpc.12616] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/24/2014] [Indexed: 01/10/2023]
Abstract
Rates of type 1 diabetes are rising globally, with a decreasing proportion of high-risk genotypes and twin concordance rates below 50%. Therefore, environmental factors such as viruses, nutrition and overweight have been examined as putative aetiological agents. The accelerator hypothesis proposes that overweight and insulin resistance are central to both type 1 and type 2 diabetes and may explain, in part, the rise in type 1 diabetes incidence. The temporal rise in body mass index at type 1 diabetes onset and the observation that pre-diabetic children are heavier and more insulin resistant than their peers suggests convergence of type 1 and type 2 diabetes phenotypes. The influence of insulin resistance may begin in utero, although the aetiological role of birthweight in type 1 diabetes remains unclear. Further research to elucidate the role of these modifiable risk factors in today's obesogenic environment may provide future potential for diabetes prevention.
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Affiliation(s)
- Sadia T Islam
- Institute of Endocrinology and Diabetes, The Children's Hospital at Westmead, Sydney, New South Wales, Australia; School of Women's and Children's Health, University of New South Wales, Sydney, New South Wales, Australia
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Machado TC, Nascimento VG, Silva JPCD, Bertoli CJ, Leone C. Body composition of preschool children and relation to birth weight. Rev Assoc Med Bras (1992) 2014; 60:139-44. [PMID: 24919001 DOI: 10.1590/1806-9282.60.02.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Accepted: 09/11/2013] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVE to evaluate the relationship between body composition of preschool children suffering from excess weight and birth weight (BW). METHODS probabilistic sample, by conglomerates, with 17 daycare centers (of a total of 59) composing a final sample of 479 children. We used Z-score of Body Mass Index (zBMI) ≥ +1 and ≥ +2, respectively, to identify preschool children with risk of overweight and excess weight (overweight or obesity). The arm muscle area (AMA) and the arm fat area (AFA) were estimated from measurements of arm circumference, triceps skin fold thickness. RESULTS the prevalence of risk of overweight was 22.9% (n=110) and excess weight was 9.3% (n=44). The risk of overweight and excess weight in children did not show correlation between BW and AFA, but it did with adjusted arm muscle area (AMAa) (rp= 0.21; p= 0.0107). The analysis of the group with excess weight alone also showed a positive correlation between BW and AMAa (rp= 0.42; p= 0.0047). CONCLUSION among overweight children, lower BW is associated with a lower arm muscle area in early preschool age, regardless of the fat arm area presented by them.
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Affiliation(s)
- Thais Costa Machado
- Department of Maternal and child Health, School of Public Health, University of São Paulo, São Paulo, SP, Brazil
| | | | - Janaína P C da Silva
- Department of Maternal and child Health, School of Public Health, University of São Paulo, São Paulo, SP, Brazil
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Voss LD, Hosking J, Metcalf BS, Jeffery AN, Frémeaux AE, Wilkin TJ. Metabolic risk in contemporary children is unrelated to socio-economic status: longitudinal study of a UK urban population (EarlyBird 42). Pediatr Diabetes 2014; 15:244-51. [PMID: 24827703 DOI: 10.1111/pedi.634] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2009] [Accepted: 12/07/2009] [Indexed: 01/14/2023] Open
Abstract
Lifestyle interventions to improve health in young children tend to target areas of relative deprivation, but the evidence for so doing is largely historical. Accordingly, we have re-examined the link between deprivation, obesity and metabolic risk in contemporary UK children. Using a postcode-based index of multiple deprivation (IMD), we assessed 269 children from the community-based EarlyBird Study, attending 53 schools representing a wide socio-economic range. Annual measures of fatness from 5 to 8 yr included body mass index (BMI), waist circumference (WC), and sum of five skinfolds (SSF). A metabolic risk score, based on blood pressure, lipids and insulin resistance, was derived from annual fasting blood samples. There were no significant associations between deprivation and any measure of adiposity in girls (all p > 0.37). In boys, there was a weak but consistently inverse relationship between deprivation and WC (r = -0.19, p = 0.03) and BMI (r = -0.14, p = 0.09) at 8 yr. Changes in adiposity over 3 yr were unrelated to deprivation in boys. In girls there was a slight but significant increase in SSF only (1 mm/yr per 20 IMD units, p = 0.001). Importantly, in both genders, metabolic risk score was unrelated to deprivation throughout (r values -0.05 to -0.13, all p > 0.12), as was change in metabolic risk (all p > 0.30). Our data do not support the assumption that obesity, metabolic disturbance and thus risk of type 2 diabetes are more prevalent among poorer children. In today's increasingly obesogenic environment, youngsters from all backgrounds appear to be vulnerable, with population-wide implications for public health spending, and the prevention of diabetes in contemporary youth.
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Affiliation(s)
- Linda D Voss
- Department of Endocrinology & Metabolism, Peninsula Medical School, Plymouth campus, Plymouth, UK
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Adamo KB, Shen GX, Mottola M, Nascimento S, Jean-Philippe S, Ferraro ZM, Nerenberg K, Smith G, Ohari R, Gaudet L, Piccinini-Vallis H, McDonald S, Atkinson S, Godbout A, Robitaille J, Davidge ST, Gruslin A, Prud'homme D, Stacey D, Rossiter M, Goldfield GS, Dodd J. Obesity Prevention from Conception: A Workshop to Guide the Development of a Pan-Canadian Trial Targeting the Gestational Period. Nutr Metab Insights 2014. [PMCID: PMC3999948 DOI: 10.4137/nmi.s14146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
This report summarizes a meeting, Obesity Prevention from Conception, held in Ottawa in 2012. This planning workshop was funded by the Canadian Institutes of Health Research (CIHR) to bring together researchers with expertise in the area of maternal obesity (OB) and weight gain in pregnancy and pregnancy-related disease to attend a one-day workshop and symposium to discuss the development of a cross-Canada lifestyle intervention trial for targeting pregnant women. This future intervention will aim to reduce downstream OB in children through encouraging appropriate weight gain during the mother’s pregnancy. The workshop served to (i) inform the development of a lifestyle intervention for women with a high pre-pregnancy body mass index (BMI), (ii) identify site investigators across Canada, and (iii) guide the development of a grant proposal focusing on the health of mom and baby. A brief summary of the presentations as well as the focus groups is presented for use in planning future research.
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Affiliation(s)
- Kristi B. Adamo
- Healthy Active Living Obesity, Children's Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
- Pediatrics, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Garry X. Shen
- Diabetes Research Group, Section of Endocrinology and Metabolism, Department of Internal Medicine, Faculty of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Michelle Mottola
- R. Samuel McLaughlin Foundation–-Exercise and Pregnancy Lab, The University of Western Ontario, London, Ontario, Canada
| | - Simony Nascimento
- Obstetric Unit, Department of Obstetrics and Gynecology, University of Campinas, Campinas, Sao Paulo, Brazil
| | - Sonia Jean-Philippe
- Healthy Active Living Obesity, Children's Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
| | - Zachary M. Ferraro
- Healthy Active Living Obesity, Children's Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
| | - Kara Nerenberg
- Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Graeme Smith
- Queen's Perinatal Research Unit, Department of Obstetrics and Gynaecology, Queen's University, Kingston, Ontario, Canada
| | - Radha Ohari
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of Alberta, Edmonton, Alberta, Canada
| | - Laura Gaudet
- Department of Obstetrics & Gynecology, Moncton Hospital, Moncton, New Brunswick, Canada
| | | | - Sarah McDonald
- Department of Obstetrics & Gynecology, Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
- Department of Clinical Epidemiology & Biostatistics, Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Stephanie Atkinson
- Department of Pediatrics, Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Ariane Godbout
- Endocrinology Division, Department of Medicine, Centre de Recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
| | - Julie Robitaille
- Département des sciences des aliments et de nutrition, Institut sur la nutrition et les aliments fonctionnels, Université Laval, Québec, Québec, Canada
| | - Sandra T. Davidge
- Women and Children's Health Research Institute, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Alberta, Canada
- Department of Obstetrics and Gynaecology, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Andrée Gruslin
- Division of Maternal Fetal Medicine, Department of Obstetrics, Gynaecology and Newborn Care, The Ottawa Hospital, University of Ottawa, Ontario, Canada
| | - Denis Prud'homme
- Institut de Recherche de l'Hôpital Montfort, School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, Ontario, Canada
| | - Dawn Stacey
- School of Nursing, Faculty of Health Sciences, University of Ottawa, Ontario, Canada
| | - Melissa Rossiter
- Department of Applied Human Nutrition, Mount Saint Vincent University, Halifax, Nova Scotia, Canada
| | - Gary S. Goldfield
- Healthy Active Living Obesity, Children's Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
- Pediatrics, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Jodie Dodd
- Discipline of Obstetrics & Gynaecology, School of Paediatrics & Reproductive Health, Faculty of Health Sciences, The University of Adelaide, Adelaide, South Australia, Australia
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Whitrow MJ, Davies MJ, Giles LC, De Stavola BL, Owens JA, Maftei O, Moore VM. Effects of birth size, post-natal growth and current size on insulin resistance in 9-year-old children: a prospective cohort study. Eur J Pediatr 2013; 172:1207-14. [PMID: 23652936 DOI: 10.1007/s00431-013-2017-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Revised: 04/18/2013] [Accepted: 04/19/2013] [Indexed: 11/28/2022]
Abstract
The influence of pre-natal conditions on later type 2 diabetes risk factors such as insulin resistance (IR) may be mediated by post-natal growth trajectory. We aimed to investigate the association of body size at birth and 9 years with IR at 9 years. Using data from a prospective Australian cohort study, we examined the influence of body size from birth to 9 years [z-score for weight or body mass index (BMI)] on IR at 9 years (estimated by homeostasis model assessment). At age 9 years, 151 children provided a fasting blood sample. z-BMI at age 9 was positively associated with IR. Birth z-BMI was inversely associated with IR only after adjustment for z-BMI at age 9 years. This may be interpreted as an effect of accelerated growth between birth and 9 years on IR. There was a statistically significant interaction between birth and 9-year z-BMI. Results from regression models including z-BMI at all available time points (birth, 6 and 12 months, and 2, 3.5 and 9 years) indicate a possible inverse association between body size at 3.5 years and HOMA-IR at 9 years. Results were similar when the analyses were repeated with z-weight substituted for z-BMI. These results add to the body of evidence concerning the importance of growth in early life for later IR, and highlight a possible interaction between pre- and post-natal growth. The potential influence of growth at around 3.5 years for HOMA-IR at 9 years warrants further investigation.
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Affiliation(s)
- Melissa J Whitrow
- Discipline of Obstetrics & Gynaecology, School of Paediatrics & Reproductive Health, The University of Adelaide, Mail Drop 327, Adelaide, SA 5005, Australia.
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Wells JCK. Ethnic variability in adiposity, thrifty phenotypes and cardiometabolic risk: addressing the full range of ethnicity, including those of mixed ethnicity. Obes Rev 2012; 13 Suppl 2:14-29. [PMID: 23107256 DOI: 10.1111/j.1467-789x.2012.01034.x] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Ethnic groups vary in cardiometabolic risk, but the underlying mechanisms remain unclear. Several components of body composition variability (fat/lean ratio, fat distribution, lean mass composition and metabolism, and adipose tissue biology) are increasingly linked with cardiometabolic risk and vary substantially across ethnic groups. Constituents of lean mass are proposed to contribute to 'metabolic capacity', a generic trait favouring the maintenance of homeostasis. Adiposity is proposed to contribute to 'metabolic load', which at higher levels challenges metabolic homeostasis, elevating cardiometabolic risk. Ethnic differences in body composition, representing different load-capacity ratios, may therefore contribute to ethnic variability in cardiometabolic risk. Ecological and evolutionary factors potentially contributing to ethnic variability in body composition are explored. In contemporary populations, clinicians encounter an increasing range of ethnicity, along with many individuals of mixed-ethnic ancestry. Increasing understanding of the contribution of body composition to cardiometabolic risk may reduce the need to treat ethnic groups as qualitatively different. A conceptual model is proposed, treating insulin sensitivity and stroke risk as composite functions of body composition variables. Operationalizing this model may potentially improve the ability to assess cardiovascular risk across the full ethnicity spectrum, and to predict cardiometabolic consequences of excess weight gain.
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Affiliation(s)
- J C K Wells
- Childhood Nutrition Research Centre, UCL Institute of Child Health, University College London, 30 Guilford St., London, UK.
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Frias AE, Grove KL. Obesity: a transgenerational problem linked to nutrition during pregnancy. Semin Reprod Med 2012; 30:472-8. [PMID: 23074005 DOI: 10.1055/s-0032-1328875] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The increased obstetric risks of maternal obesity have been well described. These include increased risks of gestational diabetes mellitus, preeclampsia, stillbirth, and cesarean delivery. The fetal/neonatal consequences of prenatal maternal obesity have received less attention. In addition to an increased risk of stillbirth, the fetal/neonatal consequences include increased adiposity and a metabolic status that increases the lifetime risk of obesity and diabetes. This review focuses on the clinical obstetric consequences of maternal obesity and highlights recent mechanistic insights on fetal programming as well as evidence suggesting that prenatal care provides a unique opportunity to ameliorate these risks and decrease the cycle of childhood obesity.
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Affiliation(s)
- Antonio E Frias
- Department of Obstetrics and Gynecology, Oregon Health and Science University (OHSU) Portland, Oregon 97239, USA.
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Nucci AM, Becker DJ, Virtanen SM, Cuthbertson D, Softness B, Huot C, Wasikowa R, Dosch HM, Åkerblom HK, Knip M. Growth differences between North American and European children at risk for type 1 diabetes. Pediatr Diabetes 2012; 13:425-31. [PMID: 22251851 PMCID: PMC3335929 DOI: 10.1111/j.1399-5448.2011.00840.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2011] [Accepted: 11/17/2011] [Indexed: 11/28/2022] Open
Abstract
AIM To evaluate the relationships between early growth and regional variations in type 1 diabetes (T1D) incidence in an international cohort of children with familial and genetic risk for T1D. METHODS Anthropometric indices between birth to 5 yr of age were compared among regions and T1D proband in 2160 children participating in the Trial to Reduce Insulin-dependent diabetes mellitus in the Genetically at Risk study. RESULTS Children in Northern Europe had the highest weight z-score between birth to 12 months of age, while those in Southern Europe and U.S.A. had the lowest weight and length/height z-scores at most time points (p < 0.005 to p < 0.001). Few differences in z-score values for weight, height, and body mass index were found by maternal T1D status. Using International Obesity Task Force criteria, the obesity rates generally increased with age and at 5 yr were highest in males in Northern Europe (6.0%) and in females in Canada (12.8%). However, no statistically significance difference was found by geographic region. In Canada, the obesity rate for female children of mothers with and without T1D differed significantly at 4 and 5 yr (6.0 vs. 0.0% and 21.3 vs. 1.9%, respectively; p < 0.0125) but no differences by maternal T1D status were found in other regions. CONCLUSIONS There are regional differences in early childhood growth that are consistent with the higher incidence of T1D in Northern Europe and Canada as compared to Southern Europe. Our prospective study from birth will allow evaluation of relationships between growth and the emerging development of autoimmunity and progression to T1D by region in this at-risk population of children.
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Affiliation(s)
- Anita M Nucci
- Division of Nutrition, Georgia State University, Atlanta, GA 30302, USA.
| | - Dorothy J Becker
- Division of Endocrinology, Children’s Hospital of Pittsburgh of UPMC, Pittsburgh, PA, 15224
| | - Suvi M Virtanen
- Nutrition Unit, National Institute for Health and Welfare, Helsinki, Finland, 00300; Tampere School of Public Health, University of Tampere, Finland and Research Unit, Tampere University Hospital, Tampere, Finland, 33014
| | - David Cuthbertson
- University of South Florida, Pediatrics Epidemiology Center, Tampa, FL, 33612
| | - Barney Softness
- Columbia University College of Physicians and Surgeons, Naomi Berrie Diabetes Center, New York, NY, 10032
| | - Celine Huot
- CHU Ste. Justine, Montreal, Quebec, Canada, H3T 1C5
| | | | | | - Hans K Åkerblom
- Children’s Hospital and Biomedicum Helsinki Institute, University of Helsinki, Helsinki, Finland, 00014
| | - Mikael Knip
- Department of Pediatrics, Tampere University Hospital, Tampere Finland, 33014, Children’s Hospital, University of Helsinki and Helsinki University Central Hospital and Folkhälsan Research Center, Helsinki, Finland, 00014
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Morbidity patterns among the underweight, overweight and obese between 2 and 18 years: population-based cross-sectional analyses. Int J Obes (Lond) 2012; 37:86-93. [PMID: 22689070 DOI: 10.1038/ijo.2012.86] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
CONTEXT No study has documented how symptomatic morbidity varies across the body mass index (BMI) spectrum (underweight, normal weight, overweight and obese) or across the entire child and adolescent age range. OBJECTIVE To (1) quantify physical and psychosocial morbidities experienced by 2-18-year-olds according to BMI status and (2) explore morbidity patterns by age. DESIGN, SETTING AND PARTICIPANTS Cross-sectional data from two Australian population studies (the Longitudinal Study of Australian Children and the Health of Young Victorians Study) were collected during 2000-2006. Participants were grouped into five age bands: 2-3 (n=4606), 4-5 (n=4983), 6-7 (n=4464), 8-12 (n=1541) and 13-18 (n=928) years. MAIN MEASURES Outcomes-Parent- and self-reported global health; physical, psychosocial and mental health; special health-care needs; wheeze; asthma and sleep problems. Exposure-measured BMI (kg m(-2)) categorised using standard international cutpoints. ANALYSES The variation in comorbidities across BMI categories within and between age bands was examined using linear and logistic regression models. RESULTS Comorbidities varied with BMI category for all except sleep problems, generally showing the highest levels for the obese category. However, patterns differed markedly between age groups. In particular, poorer global health and special health-care needs were associated with underweight in young children, but obesity in older children. Prevalence of poorer physical health varied little by BMI in 2-5-year-olds, but from 6 to 7 years was increasingly associated with obesity. Normal-weight children tended to experience the best psychosocial and mental health, with little evidence that the U-shaped associations of these variables with BMI status varied by age. Wheeze and asthma increased slightly with BMI at all ages. CONCLUSIONS Deviation from normal weight is associated with health differences in children and adolescents that vary by morbidity and age. As well as lowering risks for later disease, promoting normal body weight appears central to improving the health and well-being of the young.
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Silva AAM, Santos CJN, Amigo H, Barbieri MA, Bustos P, Bettiol H, Rona RJ. Birth weight, current body mass index, and insulin sensitivity and secretion in young adults in two Latin American populations. Nutr Metab Cardiovasc Dis 2012; 22:533-539. [PMID: 21543197 DOI: 10.1016/j.numecd.2010.09.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2010] [Revised: 08/18/2010] [Accepted: 09/30/2010] [Indexed: 10/18/2022]
Abstract
BACKGROUND AND AIMS Although studies have shown association of birth weight (BW) and adult body mass index (BMI) with insulin sensitivity in adults, there is limited evidence that BW is associated with insulin secretion. We assessed the associations between BW and current BMI with insulin sensitivity and secretion in young Latin American adults. METHODS AND RESULTS Two birth cohorts, one from Ribeirao Preto, Brazil, based on 1984 participants aged 23-25 years, and another from Limache, Chile, based on 965 participants aged 22-28 years were studied. Weight and height at birth, and current fasting plasma glucose and insulin levels were measured. Insulin sensitivity (HOMA%S) and secretion (HOMA%β) were estimated using the Homeostatic Model Assessment (HOMA2). Multiple linear regression analyses were carried out to test the associations between BW and adult BMI z-scores on log HOMA%S and log HOMA%β. BW z-score was associated with HOMA%S in the two populations and HOMA%β in Ribeirao Preto when adult BMI z-score was included in the model. BW z-score was associated with decreasing insulin secretion even without adjusting for adult BMI, but only in Ribeirao Preto. BMI z-score was associated with low HOMA%S and high HOMA%β. No interactions between BW and BMI z-scores on insulin sensitivity were shown. CONCLUSIONS This study supports the finding that BW may affect insulin sensitivity and secretion in young adults. The effect size of BW on insulin status is small in comparison to current BMI.
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Affiliation(s)
- A A M Silva
- Department of Public Health, Federal University of Maranhao, 65075630 Sao Luis, Brazil.
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Adamo KB, Ferraro ZM, Brett KE. Can we modify the intrauterine environment to halt the intergenerational cycle of obesity? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2012; 9:1263-307. [PMID: 22690193 PMCID: PMC3366611 DOI: 10.3390/ijerph9041263] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2012] [Revised: 02/24/2012] [Accepted: 02/27/2012] [Indexed: 02/07/2023]
Abstract
Child obesity is a global epidemic whose development is rooted in complex and multi-factorial interactions. Once established, obesity is difficult to reverse and epidemiological, animal model, and experimental studies have provided strong evidence implicating the intrauterine environment in downstream obesity. This review focuses on the interplay between maternal obesity, gestational weight gain and lifestyle behaviours, which may act independently or in combination, to perpetuate the intergenerational cycle of obesity. The gestational period, is a crucial time of growth, development and physiological change in mother and child. This provides a window of opportunity for intervention via maternal nutrition and/or physical activity that may induce beneficial physiological alternations in the fetus that are mediated through favourable adaptations to in utero environmental stimuli. Evidence in the emerging field of epigenetics suggests that chronic, sub-clinical perturbations during pregnancy may affect fetal phenotype and long-term human data from ongoing randomized controlled trials will further aid in establishing the science behind ones predisposition to positive energy balance.
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Affiliation(s)
- Kristi B. Adamo
- Healthy Active Living and Obesity Research Group, Children’s Hospital of Eastern Ontario Research Institute, Ottawa, ON K1H 8L1, Canada; (Z.M.F.); (K.E.B.)
- Faculty of Medicine, Pediatrics, University of Ottawa, Ottawa, ON K1H 8L1, Canada
- Faculty of Health Sciences, School of Human Kinetics, University of Ottawa, Ottawa, ON K1H 8L1, Canada
| | - Zachary M. Ferraro
- Healthy Active Living and Obesity Research Group, Children’s Hospital of Eastern Ontario Research Institute, Ottawa, ON K1H 8L1, Canada; (Z.M.F.); (K.E.B.)
- Faculty of Health Sciences, School of Human Kinetics, University of Ottawa, Ottawa, ON K1H 8L1, Canada
| | - Kendra E. Brett
- Healthy Active Living and Obesity Research Group, Children’s Hospital of Eastern Ontario Research Institute, Ottawa, ON K1H 8L1, Canada; (Z.M.F.); (K.E.B.)
- Faculty of Health Sciences, School of Human Kinetics, University of Ottawa, Ottawa, ON K1H 8L1, Canada
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Weight in pregnancy and its implications: what women report. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2011; 33:227-34. [PMID: 21453562 DOI: 10.1016/s1701-2163(16)34823-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
OBJECTIVE Misclassification of body mass index (BMI) by pregnant women could be a significant barrier to minimizing weight-related adverse pregnancy outcomes and improving the short- and long-term health of mother and child. The primary objective in this study was to determine the proportion of a group of pregnant women who were able to correctly classify BMI. Secondary objectives included assessing the direction of BMI misclassification and maternal knowledge of target gestational weight gain and obesity-associated pregnancy complications. METHODS We designed a cross-sectional survey to assess misclassification of BMI and knowledge of obesity and pregnancy outcomes, and to provide information regarding the participants' sources of knowledge, their perception of appropriate weight gain in pregnancy, and basic demographic information. The questionnaire was completed by participants awaiting routine ultrasound assessment at between 11 and 24 weeks' gestation. RESULTS Of 117 respondents, 30 (25.6%) were overweight (BMI 25 to 29.9) or obese (BMI ≥ 30.0). Obese or overweight women were significantly more likely to misclassify their BMI. Furthermore, they were significantly more likely to overestimate the minimum and maximum target gestational weight gains for their respective BMI classes. There were no differences between women in the various BMI categories with regard to their awareness of several common obesity-related pregnancy complications. CONCLUSION Misclassification of pre-pregnancy BMI is common, particularly among women carrying excess weight. Evaluation of pre-pregnancy BMI and education regarding appropriate gestational weight gain are logical initial steps for optimizing weight-related pregnancy outcomes.
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Huang RC, de Klerk NH, Smith A, Kendall GE, Landau LI, Mori TA, Newnham JP, Stanley FJ, Oddy WH, Hands B, Beilin LJ. Lifecourse childhood adiposity trajectories associated with adolescent insulin resistance. Diabetes Care 2011; 34:1019-25. [PMID: 21378216 PMCID: PMC3064016 DOI: 10.2337/dc10-1809] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE In light of the obesity epidemic, we aimed to characterize novel childhood adiposity trajectories from birth to age 14 years and to determine their relation to adolescent insulin resistance. RESEARCH DESIGN AND METHODS A total of 1,197 Australian children with cardiovascular/metabolic profiling at age 14 years were studied serially from birth to age 14 years. Semiparametric mixture modeling was applied to anthropometric data over eight time points to generate adiposity trajectories of z scores (weight-for-height and BMI). Fasting insulin and homeostasis model assessment of insulin resistance (HOMA-IR) were compared at age 14 years between adiposity trajectories. RESULTS Seven adiposity trajectories were identified. Three (two rising and one chronic high adiposity) trajectories comprised 32% of the population and were associated with significantly higher fasting insulin and HOMA-IR compared with a reference trajectory group (with longitudinal adiposity z scores of approximately zero). There was a significant sex by trajectory group interaction (P < 0.001). Girls within a rising trajectory from low to moderate adiposity did not show increased insulin resistance. Maternal obesity, excessive weight gain during pregnancy, and gestational diabetes were more prevalent in the chronic high adiposity trajectory. CONCLUSIONS A range of childhood adiposity trajectories exist. The greatest insulin resistance at age 14 years is seen in those with increasing trajectories regardless of birth weight and in high birth weight infants whose adiposity remains high. Public health professionals should urgently target both excessive weight gain in early childhood across all birth weights and maternal obesity and excessive weight gain during pregnancy.
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Affiliation(s)
- Rae-Chi Huang
- School of Medicine and Pharmacology, The University of Western Australia, Royal Perth Hospital,Perth, Australia.
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Madsen AL, Schack-Nielsen L, Larnkjaer A, Mølgaard C, Michaelsen KF. Determinants of blood glucose and insulin in healthy 9-month-old term Danish infants; the SKOT cohort. Diabet Med 2010; 27:1350-7. [PMID: 21059086 DOI: 10.1111/j.1464-5491.2010.03134.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
AIMS Insulin secretion is important for early regulation of growth, but high insulin concentration is also a risk factor for insulin resistance later in life. It is therefore important to better understand how insulin and glucose are associated with early diet and growth. The aim of this study was to examine blood glucose and insulin concentration in relation to anthropometric measurements, growth, breastfeeding practice and complementary feeding in 9-month-old infants. METHODS This was a cross-sectional study (SKOT cohort), examining 312 healthy term infants from the age of 9 months. Of these, 265 infants had data on insulin and glucose and were included in this study. Measurements include weight, length, skinfold thickness, waist circumference, 7-day food records, 2-h fasting venous glucose and insulin analysis, and questionnaire. RESULTS At 9 months of age there was a strong negative association between number of breastfeedings per day and insulin concentration (P=0.0015). Insulin concentration was positively associated to waist circumference (P=0.042) and change in Z-score for weight-for-age between 5 and 9 months (P=0.004). Glucose concentration was positively associated to subscapular skinfold (P=0.002) and sum of skinfolds thicknesses (P=0.006). CONCLUSION At 9 months, breastfeeding still had a strong negative effect on insulin concentrations, which were positively associated with weight gain and current waist circumference, while glucose concentrations were associated with subcutaneous fat. These results are of interest in disentangling the association between early growth and later risk of disease.
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Affiliation(s)
- A L Madsen
- Department of Human Nutrition, Faculty of Life Sciences, University of Copenhagen, Frederiksberg, Denmark.
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Jesuit C, Dillon C, Compher C, Lenders CM. A.S.P.E.N. clinical guidelines: nutrition support of hospitalized pediatric patients with obesity. JPEN J Parenter Enteral Nutr 2010; 34:13-20. [PMID: 20054058 DOI: 10.1177/0148607109354088] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Cheryl Jesuit
- Nutrition and Fitness for Life Program, Boston Medical Center, Boston, Massachusetts, USA
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Corvalán C, Uauy R, Kain J, Martorell R. Obesity indicators and cardiometabolic status in 4-y-old children. Am J Clin Nutr 2010; 91:166-74. [PMID: 19923378 DOI: 10.3945/ajcn.2009.27547] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND In adults and adolescents, obesity is positively associated with cardiovascular disease risk factors; however, evidence in preschool children is scarce. OBJECTIVE The objective was to assess the relations between obesity indicators and cardiometabolic risk factors in 324 Chilean children 4 y of age. DESIGN We collected anthropometric measurements and calculated general indicators of obesity [weight, body mass index (BMI), sum of 4 skinfold thicknesses, percentage fat, and body fat index] and central obesity (waist circumference, waist-to-hip ratio, waist-to-height ratio, and truncal fatness based on skinfold thickness). We measured blood sample concentrations of C-reactive protein, interleukin-6, homeostasis model assessment of insulin resistance, triglycerides, and total, LDL, and HDL cholesterol. We used correlation and multiple linear regression analyses. RESULTS The prevalence of obesity (BMI-for-age z score >2, World Health Organization 2006), central obesity (> or = 90th percentile, third National Health and Nutrition Examination Survey), and lipid disorders was high (13%, 11%, and > or = 20%, respectively), and 70% of the children had at least one cardiometabolic risk factor. Most correlations between obesity and central obesity indicators were moderate to strong (0.40 < r < 0.96). Obesity was positively but weakly associated with C-reactive protein in both sexes and with homeostasis model assessment of insulin resistance only in girls (all r < 0.3, P < 0.05). Obesity indicators were unrelated to interleukin-6 and lipid concentrations (P > 0.05). Overall, obesity indicators explained, at most, 8% of the variability in cardiometabolic risk factors. CONCLUSIONS Obesity and central obesity were common, and most of the children had at least one cardiometabolic risk factor, particularly lipid disorders. Obesity and central obesity indicators were highly intercorrelated and, overall, were weakly related to cardiometabolic status. At this age, body mass index and waist circumference were poor predictors of cardiometabolic status.
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Affiliation(s)
- Camila Corvalán
- Nutrition and Health Sciences Program, Graduate Division of Biological and Biomedical Sciences, Emory University, Atlanta, GA, USA.
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The accelerator hypothesis: a review of the evidence for insulin resistance as the basis for type I as well as type II diabetes. Int J Obes (Lond) 2009; 33:716-26. [PMID: 19506563 DOI: 10.1038/ijo.2009.97] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Although some 40 years have passed since type I diabetes was first defined, its cause remains unknown. The autoimmunity paradigm of immune dysregulation has not offered an explanation for its rising incidence, nor means of preventing it, and there is arguably good reason to consider alternatives. The accelerator hypothesis is a singular, unifying concept that argues that type I and type II diabetes are the same disorder of insulin resistance, set against different genetic backgrounds. The hypothesis does not deny the role of autoimmuniy, only its primacy in the process. It distinguishes type I and type II diabetes only by tempo, the faster tempo reflecting the more susceptible genotype and (inevitably) earlier presentation. Insulin resistance is closely related to the rise in overweight and obesity, a trend that the hypothesis deems central to the rising incidence of all diabetes in the developed and developing world. Rather than overlap between the two types of diabetes, the accelerator hypothesis envisages overlay-each a subset of the general population differing from each other only by genotype. Indeed, it views type I and type II diabetes as a continuum, where the infinitely variable interaction between insulin resistance and genetic response determines the age at which beta-cell loss becomes critical. Adult diabetes is not viewed as an entity, but rather as diabetes presenting in adulthood. Childhood diabetes, similarly, is diabetes presenting in childhood. The increasing incidence of both is primarily the result of lifestyle change and the rise in body weight that has resulted.
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García Cuartero B, González Vergaz A, Herranz S, Vázquez M, Carvajal O, Carpintero P, Gutierrez P. El bajo peso al nacer es un factor de riesgo de diabetes mellitus tipo 1. An Pediatr (Barc) 2009; 70:542-6. [DOI: 10.1016/j.anpedi.2009.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2008] [Revised: 02/05/2009] [Accepted: 02/24/2009] [Indexed: 11/16/2022] Open
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Gardner DSL, Hosking J, Metcalf BS, Jeffery AN, Voss LD, Wilkin TJ. Contribution of early weight gain to childhood overweight and metabolic health: a longitudinal study (EarlyBird 36). Pediatrics 2009; 123:e67-73. [PMID: 19117849 DOI: 10.1542/peds.2008-1292] [Citation(s) in RCA: 166] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Early weight gain (0-5 years) is thought to be an important contributor to childhood obesity and consequently metabolic risk. There is a scarcity of longitudinal studies in contemporary children reporting the impact of early weight gain on metabolic health. OBJECTIVE We aimed to assess the impact of early weight gain on metabolic health at 9 years of age. METHOD Two hundred thirty-three children (134 boys, 99 girls) with a gestational age of >37 weeks were assessed at birth, 5 years of age, and 9 years of age. Measures included weight SD scores at each time point and excess weight gained (Delta weight SD score) between them. The outcome measure included composite metabolic score (sum of internally derived z scores of insulin resistance, mean blood pressure, triglyceride level, and total cholesterol/high-density lipoprotein cholesterol ratio). RESULTS Weight SD score increased by 0.29 SD score in girls and 0.26 SD score in boys from 0 to 5 years of age and by 0.03 SD score in girls and 0.11 SD score in boys from 5 to 9 years of age. Weight SD score correlated poorly to moderately before 5 years of age but strongly after 5 years of age. Birth weight SD score predicted (girls/boys) 2.4%/0% of the variability in composite metabolic score at 9 years of age. Adding Delta weight SD score (0-5 years old) contributed (girls/boys) 11.2%/7.0% to the score, and adding Delta weight SD score (5-9 years old) additionally contributed (girls/boys) 26.4%/16.5%. Importantly, once weight SD score at 9 years of age was known, predictive strength was changed little by adding Delta weight SD score. CONCLUSIONS Most excess weight before puberty is gained before 5 years of age. Weight at 5 years of age bears little relation to birth weight but closely predicts weight at 9 years of age. Single measures of current weight are predictive of metabolic health, whereas weight gain within a specific period adds little. A single measure of weight at 5 years of age provides a pointer to future health for the individual. If metabolic status at 9 years of age means future risk, diabetes/cardiovascular prevention strategies might better focus on preschool-aged children, because the die seems to be largely cast by 5 years of age, and a healthy weight early in childhood may be maintained at least into puberty.
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Affiliation(s)
- Daphne S L Gardner
- Department of Endocrinology and Metabolism, Peninsula College of Medicine and Dentistry, Plymouth Campus, Plymouth, UK
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Silveira VMFD, Horta BL. [Birth weight and metabolic syndrome in adults: meta-analysis]. Rev Saude Publica 2008; 42:10-8. [PMID: 18200335 DOI: 10.1590/s0034-89102008000100002] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVES To assess published evidences of the effect of birth weight on metabolic syndrome in adults. METHODS PubMed and LILACS databases were searched for articles published from 1966 through May 2006. The terms used were: "birth weight", "birthweight", "intra-uterine growth restriction (IUGR)", "fetal growth retardation", "metabolic syndrome", "syndrome X", "Reaven's X syndrome". Two hundred and twenty-four studies reporting estimates of the association between birth weight and metabolic syndrome or its components were considered eligible. Eleven studies provided odds ratios and were included in the meta-analysis. RESULTS All but two studies reported an inverse relationship between birth weight and metabolic syndrome. A comparison between low birth weight vs. normal birth weight subjects showed the random effects odds ratio for metabolic syndrome was 2.53 (95% CI: 1.57;4.08). The funnel plot graphic suggests a publication bias but, even in the studies with more than 400 subjects, the results remained significant (pooled odds ratio: 2.37 (95% CI: 1.15;4.90). CONCLUSIONS Low birth weight increases the risk of metabolic syndrome in adults.
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Affiliation(s)
- Vera Maria Freitas da Silveira
- Programa de Pós graduação em Epidemiologia, Departamento de Clínica Médica, Faculdade de Medicina, Universidade Federal de Pelotas, Pelotas, RS, Brasil.
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Abstract
The accelerator hypothesis was published in 2001, and proposes that that type 1 and type 2 diabetes are the same disorder of insulin resistance set against different genetic backgrounds. The different genes modulate (variably accelerate) the tempo of beta cell loss and thereby determine the age at onset and incidence of the disease. Some of the predictions made by the hypothesis have been met by data not available when the hypothesis was first proposed. Principle among these is the expectation - now born out in five independent studies - that age at onset should be inversely related to BMI, a surrogate for insulin resistance. This article updates the hypothesis, provides evidence to support the predictions and offers arguments to counter challenges that have appeared in print. Finally, it proposes a randomised controlled trial to test the principle that a reduction in blood glucose, by reducing the load on beta cells, will slow the tempo of their destruction and reduce the incidence of type 1 diabetes.
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Affiliation(s)
- Terence J Wilkin
- Department of Endocrinology & Metabolism, Peninsula Medical School, Plymouth, Devon, UK.
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Crowther NJ, Cameron N, Trusler J, Toman M, Norris SA, Gray IP. Influence of catch-up growth on glucose tolerance and beta-cell function in 7-year-old children: results from the birth to twenty study. Pediatrics 2008; 121:e1715-22. [PMID: 18519475 DOI: 10.1542/peds.2007-3147] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE The aim of this study was to investigate the effect of catch-up growth occurring at different stages of childhood on glucose levels and beta-cell function at 7 years of age. METHODS Oral glucose tolerance tests were performed on 152 7-year-old children. Anthropometric data were available from birth to 7 years of age. Children were split into catch-up, catch-down, and normal-growth groups on the basis of growth rates between birth and 1 year, birth and 5 years, and birth and 7 years. Fasting and 30- and 120-minute blood samples collected during the oral glucose tolerance tests were assayed for glucose, insulin, proinsulin, and des-31,32-proinsulin levels, and area-under-the-curve values were calculated. RESULTS Children with catch-up growth between birth and 5 years or birth and 7 years had greater area-under-the-curve insulin levels than the children with catch-down growth. Children with catch-up growth only between birth and 7 years exhibited higher proinsulin levels and a greater insulin secretory response to glucose than those who experienced catch-up growth between both birth and 1 year and birth and 7 years of age. Low birth weight children with no catch-up growth between birth and 7 years had the highest glucose and lowest insulinogenic index levels, whereas children with high birth weight and catch-up growth had the highest insulin levels. CONCLUSIONS Extremes of birth weight in conjunction with extremes of postnatal growth are all detrimental to childhood metabolism. The negative metabolic effects of catch-up growth between birth and 7 years may be attenuated if catch-up growth also occurs between birth and 1 year of age.
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Affiliation(s)
- Nigel J Crowther
- Department of Chemical Pathology, NHLS, University of Witwatersrand Medical School, 7 York Rd, Parktown 2193, Johannesburg, South Africa.
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Clapp Iii JF, Lopez B. Size at birth, obesity and blood pressure at age five. Metab Syndr Relat Disord 2008; 5:116-26. [PMID: 18370820 DOI: 10.1089/met.2006.0026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
BACKGROUND The fetal origins hypothesis indicates that morphometric evidence of fetal nutritional deprivation is predictive of excessive weight gain/obesity, insulin resistance, and cardiovascular disease after birth. However, it is unclear whether these effects are present in offspring with "normal" birth weights in contemporary Western society, whether they are population specific, and how early in life they appear. This study was designed to examine these questions in a select populace of morphometrically diverse offspring to test the null hypothesis that morphometric evidence of nutritional restriction in utero has no effect on the presence of either obesity or increased blood pressure at ages 5 and 6. METHODS We present a prospective study of 101 offspring born of well-nourished, middle and upper socioeconomic-class women who participated in studies of diet and exercise during pregnancy. At birth and age 5 to 6 the offspring underwent morphometric evaluation with the additional measurement of blood pressure at age 5 to 6. RESULTS There were no significant negative correlations between neonatal morphometrics and either blood pressure or obesity at age 5 to 6. There were, however, direct positive correlations between birth weight and both weight and BMI at age 5 to 6 (p < 0.0001). CONCLUSIONS In this specific populace, morphometrics at age 5 to 6 correlated with size at birth. However, there was no relationship between mophometric evidence of in utero nutritional deprivation at birth and either blood pressure or obesity at age 5 to 6.
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Affiliation(s)
- James F Clapp Iii
- The Departments of Reproductive Biology and Obstetrics and Gynecology and The Schwartz Center for Metabolism and Nutrition at The MetroHealth Campus of Case Western Reserve University School of Medicine, Cleveland, Ohio., The Department of Obstetrics and Gynecology, University of Vermont College of Medicine Burlington, Vermont
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Järvinen TM, Harjutsalo V, Kinnunen L, Miettinen ME, Tuomilehto-Wolf E, Tuomilehto J. A population-specific diabetogenic haplotype HLA-A2,Cw1,B56,DR4,DQ8 is associated with high birthweight in Finnish diabetic families. Genes Immun 2008; 9:207-13. [DOI: 10.1038/gene.2008.3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Wilkin TJ. Changing perspectives in diabetes: their impact on its classification. Diabetologia 2007; 50:1587-92. [PMID: 17457564 DOI: 10.1007/s00125-007-0665-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2007] [Accepted: 02/05/2007] [Indexed: 01/30/2023]
Abstract
Type 1 and type 2 diabetes are usually regarded as distinct disorders, but the convergence of their phenotypes over recent years, the relationship of body weight to the risk of type 1 diabetes, the diminishing importance of the type 1 susceptibility genes and the finding of autoantibodies in patients with type 2 diabetes, invite a different interpretation. The possibility that type 1 and type 2 diabetes, rather than being different, are merely poles of a single spectrum, where variation in the tempo of beta cell loss determines age at onset and symptoms at presentation, has important implications. Correct classification is crucial because it directs appropriate treatment and, where available, prevention. This article argues that type 1 diabetes is currently misclassified, provides evidence that insulin resistance drives type 1 diabetes as it does type 2, and proposes how the 'accelerator hypothesis' can be tested in a randomised controlled trial, which could demonstrate, for the first time, the safe and effective prevention of type 1 diabetes.
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Affiliation(s)
- T J Wilkin
- Department of Endocrinology and Metabolism, Peninsula Medical School, Plymouth, UK.
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Mamabolo RL, Alberts M, Levitt NS, Delemarre-van de Waal HA, Steyn NP. Association between insulin-like growth factor-1, insulin-like growth factor-binding protein-1 and leptin levels with nutritional status in 1–3-year-old children, residing in the central region of Limpopo Province, South Africa. Br J Nutr 2007; 98:762-9. [PMID: 17640414 DOI: 10.1017/s0007114507742708] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The present study evaluated levels of growth factors and their associations with nutritional status with emphasis on stunting in children at 1 and 3 years of age. A follow-up study on a birth cohort (n 219) of children from villages in the central region of the Limpopo Province was undertaken. Of the original cohort, 156 and 162 could be traced and assessed at ages 1 and 3 years, respectively. Data collected included socio-demographic characteristics, anthropometric measurements, dietary intake and fasting blood (collected from 116 and 145 children at 1 and 3 years, respectively) for growth factor analysis (insulin-like growth factor (IGF)-1, IGF binding protein (BP)-1, IGFBP-3, leptin, glucose and insulin). At 1 year it was found that stunted children had lower leptin levels while their IGFBP-1 levels were higher than that in normal children. These differences were, however, not observed at 3 years. Furthermore at 1 year the biochemical parameters were more related to length measures whereas at 3 years the parameters were more associated with weight measures. The observed stunting in this group of children may be a result of chronic undernutrition resulting in long-term growth faltering which is already evident at 1 year. Thus the observed phenomenon might be an adaptive mechanism adopted by children's metabolic processes as they grow up in an environment with inadequate essential nutrients due to poor weaning practices and consumption of a diet of poor quality, resulting in them gaining more weight at the expense of linear growth.
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Affiliation(s)
- R L Mamabolo
- School of Physiology, Nutrition and Consumer Science, North-West University (Potchefstroom Campus), Private Bag X6001, Potchefstroom, 2520, South Africa.
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Garemo M, Palsdottir V, Strandvik B. Metabolic markers in relation to nutrition and growth in healthy 4-y-old children in Sweden. Am J Clin Nutr 2006; 84:1021-6. [PMID: 17093153 DOI: 10.1093/ajcn/84.5.1021] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND The worldwide increase in overweight and obesity probably involves dietary factors, and early indicators of risk must be identified. OBJECTIVE We aimed to analyze metabolic markers in relation to dietary intake and anthropometry in healthy 4-y-old children. DESIGN A cross-sectional study of nutritional intake was performed in 95 children by use of 7-d food records. Fasting blood samples were analyzed for glucose, insulin, and lipids. RESULTS The study population was representative of Swedish children except that more parents than the average had a university education. The boys' mean energy intake was higher (6.6 +/- 0.75 MJ) than the girls' (5.7 +/- 0.79 MJ). Significant associations were found between the percentage of energy from carbohydrates and that from fat (r = -0.91) and sucrose (r = 0.59). High body mass index was associated with a low percentage of energy from fat (r = -0.32). Serum triacylglycerol, insulin, and the HOMA (homeostatic model assessment) index were higher in girls than in boys. In girls, HOMA beta-cell function was significantly negatively associated with fat intake and serum fasting insulin, and HOMA insulin resistance indexes were significantly associated with the increment in z scores for height and weight from birth to age 4 y. Compared with children with fasting insulin concentrations below the group mean + SD, the children with concentrations above that value were smaller as newborns and had larger increments in growth z scores from birth to age 4 y. CONCLUSION In healthy Swedish 4-y-olds from well-educated families, low fat intake was related to high body mass index. Upward weight and height percentile crossings were related to insulin resistance, especially in girls.
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Affiliation(s)
- Malin Garemo
- Department of Paediatrics, Institute for Clinical Sciences, Sahlgrenska Academy, Göteborg University, Göteborg, Sweden
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Chandak GR, Ward KJ, Yajnik CS, Pandit AN, Bavdekar A, Joglekar CV, Fall CHD, Mohankrishna P, Wilkin TJ, Metcalf BS, Weedon MN, Frayling TM, Hattersley AT. Triglyceride associated polymorphisms of the APOA5 gene have very different allele frequencies in Pune, India compared to Europeans. BMC MEDICAL GENETICS 2006; 7:76. [PMID: 17032446 PMCID: PMC1618828 DOI: 10.1186/1471-2350-7-76] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/08/2006] [Accepted: 10/10/2006] [Indexed: 11/12/2022]
Abstract
Background The APOA5 gene variants, -1131T>C and S19W, are associated with altered triglyceride concentrations in studies of subjects of Caucasian and East Asian descent. There are few studies of these variants in South Asians. We investigated whether the two APOA5 variants also show similar association with various lipid parameters in Indian population as in the UK white subjects. Methods We genotyped 557 Indian adults from Pune, India, and 237 UK white adults for -1131T>C and S19W variants in the APOA5 gene, compared their allelic and genotype frequency and determined their association with fasting serum triglycerides, total cholesterol, HDL and LDL cholesterol levels using univariate general linear analysis. APOC3 SstI polymorphism was also analyzed in 175 Pune Indian subjects for analysis of linkage disequilibrium with the APOA5 variants. Results The APOA5 -1131C allele was more prevalent in Indians from Pune (Pune Indians) compared to UK white subjects (allele frequency 20% vs. 4%, p = 0.00001), whereas the 19W allele was less prevalent (3% vs. 6% p = 0.0015). Patterns of linkage disequilibrium between the two variants were similar between the two populations and confirmed that they occur on two different haplotypes. In Pune Indians, the presence of -1131C allele and the 19W allele was associated with a 19% and 15% increase respectively in triglyceride concentrations although only -1131C was significant (p = 0.0003). This effect size was similar to that seen in the UK white subjects. Analysis of the APOC3 SstI polymorphism in 175 Pune Indian subjects showed that this variant is not in appreciable linkage disequilibrium with the APOA5 -1131T>C variant (r2 = 0.07). Conclusion This is the first study to look at the role of APOA5 in Asian Indian subjects that reside in India. The -1131C allele is more prevalent and the 19W allele is less prevalent in Pune Indians compared to UK Caucasians. We confirm that the APOA5 variants are associated with triglyceride levels independent of ethnicity and that this association is similar in magnitude in Asian Indians and Caucasians. The -1131C allele is present in 36% of the Pune Indian population making it a powerful marker for looking at the role of elevated triglycerides in important conditions such as pancreatitis, diabetes and coronary heart disease.
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Affiliation(s)
- Giriraj R Chandak
- Genome Research Group, Centre for Cellular and Molecular Biology, Hyderabad, India
| | - Kirsten J Ward
- Institute of Biomedical and Clinical Science, Peninsula Medical School, Exeter, UK
| | | | - Anand N Pandit
- Department of Pediatrics, King Edward Memorial Hospital and Research Centre, Pune, India
| | - Ashish Bavdekar
- Department of Pediatrics, King Edward Memorial Hospital and Research Centre, Pune, India
| | - Charu V Joglekar
- Diabetes Unit, King Edward Memorial Hospital and Research Centre, Pune, India
| | - Caroline HD Fall
- Medical Research Council, Epidemiology Resource Centre, Southampton, UK
| | - P Mohankrishna
- Genome Research Group, Centre for Cellular and Molecular Biology, Hyderabad, India
| | - Terence J Wilkin
- Departments of Endocrinology and Metabolism, Peninsula Medical School, Plymouth, UK
| | - Bradley S Metcalf
- Departments of Endocrinology and Metabolism, Peninsula Medical School, Plymouth, UK
| | - Michael N Weedon
- Institute of Biomedical and Clinical Science, Peninsula Medical School, Exeter, UK
| | - Timothy M Frayling
- Institute of Biomedical and Clinical Science, Peninsula Medical School, Exeter, UK
| | - Andrew T Hattersley
- Institute of Biomedical and Clinical Science, Peninsula Medical School, Exeter, UK
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Jeffery AN, Metcalf BS, Hosking J, Murphy MJ, Voss LD, Wilkin TJ. Little evidence for early programming of weight and insulin resistance for contemporary children: EarlyBird Diabetes Study report 19. Pediatrics 2006; 118:1118-23. [PMID: 16951006 DOI: 10.1542/peds.2006-0740] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE The aim of this study was to evaluate whether adaptive responses made to the uterine or very early infant environment are affecting the current metabolic health of young children in the United Kingdom. METHODS Participants were 300 healthy children and their parents from the EarlyBird Diabetes Study cohort. Children were recruited from randomly selected schools at 5 years of age. Retrospective measures were maternal prepregnancy weight (n = 230), maternal fasting glucose levels at 28 weeks of pregnancy (n = 27), birth weight, and infant weight at ages 3 and 6 weeks. Prospective measures were insulin resistance, height, weight, and percentage of body fat (sum of 5 skinfold measurements) at ages 5, 6, 7, and 8 years. RESULTS Maternal third-trimester fasting glucose levels were associated positively with birth weight but were not associated with either weight or insulin resistance for the same children at 8 years. Birth weight was unrelated to insulin resistance at 8 years. There were no relationships between weight change in the first weeks of life and weight, percentage of fat, or insulin resistance at 8 years. Longer breastfeeding correlated inversely, although weakly, with percentage of body fat for boys only. Current weight was correlated with insulin resistance at 8 years. CONCLUSIONS For these contemporary children, neither the gestational environment nor early postnatal growth predicted insulin resistance, which was best predicted by current weight. There was no evidence that predictive adaptive responses made by the fetus or infant affected the child's weight or insulin resistance later in childhood.
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Affiliation(s)
- Alison N Jeffery
- Department of Endocrinology and Metabolism, Peninsula Medical School, Plymouth, United Kingdom.
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Minton JAL, Owen KR, Ricketts CJ, Crabtree N, Shaikh G, Ehtisham S, Porter JR, Carey C, Hodge D, Paisey R, Walker M, Barrett TG. Syndromic obesity and diabetes: changes in body composition with age and mutation analysis of ALMS1 in 12 United Kingdom kindreds with Alstrom syndrome. J Clin Endocrinol Metab 2006; 91:3110-6. [PMID: 16720663 DOI: 10.1210/jc.2005-2633] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
CONTEXT Alström syndrome (AS) is a monogenic form of infancy-onset obesity and insulin resistance, caused by ALMS1 mutations. The natural history of the insulin resistance is unknown, in particular how this relates to changes in body composition. It is also unclear how ALMS1 mutations relate to the characteristic phenotype. OBJECTIVES Our objectives were to characterize body composition and metabolic parameters, to establish ALMS1 mutation spectrum of United Kingdom AS patients, and to determine whether a genotype-phenotype correlation exists. DESIGN AND PATIENTS We conducted a cross-sectional cohort study of 12 unrelated subjects with AS. Age-standardized body composition was assessed by anthropometry and dual-energy x-ray absorptiometry and insulin sensitivity by homeostasis model assessment. The exons and intron-exon boundaries of ALMS1 were directly sequenced. SETTING The study was performed during the annual Alström Syndrome UK multidisciplinary screening clinic. RESULTS AS patients have early-onset obesity, but body mass index, waist circumference, and body fat from dual-energy x-ray absorptiometry were negatively correlated with age (r = -0.37, P = 0.2; r = -0.84, P = 0.002; and r = -0.6, P = 0.05). Despite this, insulin resistance increased, demonstrated by raised fasting insulin and fall in homeostasis model assessment insulin sensitivity with age (r = -0.64, P = 0.02). ALMS1 mutations were identified in 10 of 12 patients, with a potential founder mutation in exon 16 present in five [np 10775del (C); Del3592fs/ter3597]. No genotype-phenotype correlation was observed. CONCLUSIONS We identified mutations in ALMS1 in more than 80% of patients with no genotype-phenotype correlation. In AS, severe childhood obesity, waist circumference, and body fat decrease with age, whereas insulin resistance increases. The abdominal obesity, insulin resistance, diabetes, hypertriglyceridemia, and hypertension suggest that AS could represent a monogenic model for the metabolic syndrome.
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Affiliation(s)
- J A L Minton
- Medical and Molecular Genetics, Institute for Biomedical Research, The Medical School, Edgbaston, Birmingham B15 2TT, United Kingdom
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Huang RC, Burke V, Newnham JP, Stanley FJ, Kendall GE, Landau LI, Oddy WH, Blake KV, Palmer LJ, Beilin LJ. Perinatal and childhood origins of cardiovascular disease. Int J Obes (Lond) 2006; 31:236-44. [PMID: 16718281 DOI: 10.1038/sj.ijo.0803394] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Features of the metabolic syndrome comprise a major risk for cardiovascular disease and will increase in prevalence with rising childhood obesity. We sought to identify early life influences on development of obesity, hypertension and dyslipidemia in children. METHODS AND RESULTS Cluster analysis was used on a subset of a longitudinal Australian birth cohort who had blood samples at age 8 (n=406). A quarter of these 8-year-olds fell into a cluster with higher body mass index, blood pressure (BP), more adverse lipid profile and a trend to higher serum glucose resembling adult metabolic syndrome. There was a U-shaped relationship between percentage of expected birth weight (PEBW) and likelihood of being in the high-risk cluster. The high-risk cluster had elevated BP and weight as early as 1 and 3 years old. Increased likelihood of the high-risk cluster group occurred with greatest weight gain from 1 to 8 years old (odds ratio (OR)=1.4, 95% confidence interval (CI)=1.3-1.5/kg) and if mothers smoked during pregnancy (OR=1.82, CI=1.05-3.2). Risk was lower if children were breast fed for >/=4 months (OR=0.6, 95% CI=0.37-0.97). Newborns in the upper two quintiles for PEBW born to mothers who smoked throughout pregnancy were at greatest risk (OR=14.0, 95% CI=3.8-51.1) compared to the nadir PEBW quintile of non-smokers. CONCLUSION A U-shaped relationship between birth weight and several components of the metabolic syndrome was confirmed in a contemporary, well-nourished Western population of full-term newborns, but post-natal weight gain was the dominant factor associated with the high-risk cluster. There was a prominence of higher as well as lowest birth weights in those at risk. Future health programs should focus on both pre- and post-natal factors (reducing excess childhood weight gain and smoking during pregnancy), and possibly the greatest benefits may arise from targeting the heaviest, as well as lightest newborns, especially with a history of maternal smoking during pregnancy.
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Affiliation(s)
- R C Huang
- School of Medicine and Pharmacology, The University of Western Australia (UWA) (M570), Royal Perth Hospital, Perth, Western Australia, Australia.
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Ward KJ, Ellard S, Yajnik CS, Frayling TM, Hattersley AT, Venigalla PNS, Chandak GR. Allelic drop-out may occur with a primer binding site polymorphism for the commonly used RFLP assay for the -1131T>C polymorphism of the Apolipoprotein AV gene. Lipids Health Dis 2006; 5:11. [PMID: 16670016 PMCID: PMC1513378 DOI: 10.1186/1476-511x-5-11] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2006] [Accepted: 05/02/2006] [Indexed: 11/13/2022] Open
Abstract
Apolipoprotein AV (ApoAV) gene variant, -1131T>C, is associated with increased triglyceride concentrations in all ethnic groups studied. An MseI based RFLP analysis is the most commonly used method for genotyping this SNP. We genotyped a large cohort comprising 1185 Asian Indians and 173 UK Caucasians for -1131T>C using an ARMS-PCR based tetra-primer method. For quality control, we re-genotyped approximately 10% random samples from this cohort utilizing the MseI RFLP, which showed a 2.9% (3/102) genotyping error rate between the two methods. To investigate further, we sequenced the 900 bp region around the -1131T>C polymorphism in 25 Asian Indians and 15 UK Caucasians and found a number of polymorphisms including the -987C>T polymorphism. Further analysis of the -987C>T SNP showed a higher rare allele frequency of 0.23 in Asian Indians (n = 158) compared to 0.09 in the UK Caucasians (n = 157). This SNP is located 4 bp from the 3' end of the RFLP forward primer and is in weak linkage disequilibrium with -1131T>C variant (r2 = 0.084 and D' = 1). Repeated RFLP analysis of seven subjects heterozygous for -987C>T (seven times), showed discordant results with the sequence at -1131T>C SNP nearly one third (15/49) of the time. We conclude that presence of -987C>T polymorphism in the forward primer of the MseI RFLP assay may lead to allelic drop-out and generate unforeseen errors in genotyping the -1131T>C polymorphism. Our results also emphasise the need for careful quality control in all molecular genetic studies, particularly while transferring genotyping methods between various ethnic groups.
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Affiliation(s)
- Kirsten J Ward
- Institute of Biomedical and Clinical Science, Peninsula Medical School, Exeter, UK
| | - Sian Ellard
- Institute of Biomedical and Clinical Science, Peninsula Medical School, Exeter, UK
| | | | - Timothy M Frayling
- Institute of Biomedical and Clinical Science, Peninsula Medical School, Exeter, UK
| | - Andrew T Hattersley
- Institute of Biomedical and Clinical Science, Peninsula Medical School, Exeter, UK
| | | | - Giriraj R Chandak
- Genome Research Group, Centre for Cellular and Molecular Biology, Hyderabad, India
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Quinn M, Fleischman A, Rosner B, Nigrin DJ, Wolfsdorf JI. Characteristics at diagnosis of type 1 diabetes in children younger than 6 years. J Pediatr 2006; 148:366-71. [PMID: 16615969 DOI: 10.1016/j.jpeds.2005.10.029] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2005] [Revised: 08/16/2005] [Accepted: 10/11/2005] [Indexed: 12/22/2022]
Abstract
OBJECTIVE To characterize the prodrome, presentation, family history, and biochemical status at diagnosis of type 1 diabetes mellitus (T1D) in children under age 6 years. STUDY DESIGN This was a retrospective chart review of patients hospitalized at diagnosis with T1D from 1990 to 1999 in a children's hospital. RESULTS A total of 247 children were hospitalized, 44% of whom presented in diabetic ketoacidosis (DKA). When stratified by 2-year age intervals, only total carbon dioxide (tCO(2)) was significantly lower in the youngest children (P = .02), and the duration of candidiasis was significantly longer in those children presenting in DKA (P = .004). Parents were more likely to recognize symptomatic hyperglycemia in children older than 2 years (P < .0001). Most parents sought care for their child suspecting that the child had diabetes; the other children were diagnosed when presenting with another concern. Only gender and tCO(2) were significantly correlated with hemoglobin A1c (HbA1c); age-adjusted HbA1c was 0.64% higher in girls compared with boys (P = .045), and each 1-mmol/L decrement in tCO(2) increased the age- and gender-adjusted HbA1c by 0.086% (P < .001). CONCLUSIONS A high proportion of children under age 6 years present critically ill at the diagnosis of T1D. When any of the classic symptoms of diabetes or a yeast infection is present, a serum glucose level should be measured.
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Affiliation(s)
- Maryanne Quinn
- Division of Endocrinology, Children's Hospital Boston, MA 02115, USA.
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Abstract
OBJECTIVE To provide an overview of the incidence of type 2 diabetes in children and adolescents and provide direction for clinicians who care for children and adolescents. RESEARCH DESIGN AND METHOD The data presented in this review were obtained from published literature and abstracts presented at scientific meetings. Clinical trials and review articles were identified using the search terms 'metabolic syndrome', 'type 2 diabetes mellitus', 'children', and 'adolescents' in a MEDLINE search from 1995-2005. Additionally, the bibliographies of the identified articles were reviewed. RESULTS Type 2 diabetes is rising rapidly in children and adolescents worldwide. Changing a child's living environment to include physical activity, and a well balanced, low fat, high fiber diet, are important for the maintenance of a desirable body weight and improving insulin sensitivity. Maintaining euglycemia with metformin, sulfonylureas, thiazolinediones, and insulin is recommended. Effective treatment of co-morbid problems such as hypertension and dyslipidemia can decrease the risk of cardiovascular complications. CONCLUSIONS The prevalence of type 2 diabetes in children will continue to rise until effective measures are taken to prevent obesity in this age group. Ensuring that children have a well-balanced low fat, high fiber, diet, combined with physical activity, will promote weight loss or maintenance, improve insulin sensitivity, and decrease the risk of diabetes and cardiovascular disease. Pharmacologic therapy is recommended for children who are unable to achieve satisfactory glycemic control through physical activity and diet.
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Affiliation(s)
- Eva M Vivian
- Western University of Health Sciences, College of Pharmacy, Pomona, California 91766-1854, USA.
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Gungor N, Hannon T, Libman I, Bacha F, Arslanian S. Type 2 diabetes mellitus in youth: the complete picture to date. Pediatr Clin North Am 2005; 52:1579-609. [PMID: 16301084 DOI: 10.1016/j.pcl.2005.07.009] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Type 2 diabetes mellitus is a heterogeneous condition in which the clinical manifestation of hyperglycemia is a reflection of the impaired balance between insulin sensitivity and insulin secretion. Clinical experience and research in youth type 2 diabetes mellitus are in an early stage because of the relative novelty of the condition in pediatrics. This article discusses the amassed information in type 2 diabetes mellitus of youth to date with respect to the epidemiology, pathophysiology, risk factors, clinical presentation, screening, and management strategies.
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Affiliation(s)
- Neslihan Gungor
- Division of Pediatric Endocrinology, Metabolism, and Diabetes Mellitus, Children's Hospital of Pittsburgh, 3705 Fifth Avenue, Pittsburgh, PA 15213, USA
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Wilkin TJ, Voss LD, Metcalf BS, Mallam K, Jeffery AN, Alba S, Murphy MJ. Metabolic risk in early childhood: the EarlyBird Study. Int J Obes (Lond) 2005; 28 Suppl 3:S64-9. [PMID: 15543222 DOI: 10.1038/sj.ijo.0802807] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE For a decade or more, poor nutrition during gestation, expressed as low weight at birth, was held to be the factor responsible for insulin resistance later in life. Birth weights, however, are rising and insulin-resistant states, such as diabetes, faster still. Alternative explanations are needed for insulin resistance in contemporary society. This review cites data from the EarlyBird study on the relationships of insulin resistance and metabolic disturbance in early childhood. DESIGN EarlyBird is a nonintervention prospective cohort study that asks the question 'Which children develop insulin resistance, and why?' It is unique in taking serial blood samples from a young age with which to monitor the behaviour of insulin resistance and its metabolic correlates, and in its comprehensive assessment of factors known or thought to influence insulin resistance SUBJECTS In all, 307 randomly selected healthy school children at school entry (mean age 4.9 y) and at 12 and 24 months later. MEASUREMENTS In the children: Birth weight and, at each time point height, weight, body mass index (BMI, kg/m(2)), skinfolds at five sites, circumferences, resting energy expenditure, physical activity, body composition, heart rate variability, diet, HOMA-IR and HOMA-ISC, blood pressure, full blood count, haemoglobin and haematocrit, HbA1C, total cholesterol, HDL cholesterol, LDL cholesterol, triglycerides, uric acid, IGF-1, gonadotrophins and SHBG. In their parents: At baseline height, weight, BMI, waist circumference, HOMA-IR and HOMA-ISC, full blood count, haematocrit, HbA1C, total cholesterol, HDL cholesterol, calculated LDL cholesterol, triglycerides, uric acid, gonadotrophins and SHBG. RESULTS Four observations are reported here: (1) There are clear correlations in contemporary children between insulin resistance and weight at 5 y, but none with birth weight. (2) Females throughout life are intrinsically more insulin resistant than males. (3) The substantial variation of physical activity among young children is attributable to the child, and not to his environment. (4) There is dissociation in young children between fatness and insulin resistance. CONCLUSION There is much yet to be learned about the development of obesity and insulin resistance in children. The notions of overnutrition and underactivity alone are too simplistic.
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Affiliation(s)
- T J Wilkin
- The EarlyBird Research Centre, Peninsula Medical School, Plymouth, UK.
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Jimenez-Chillaron JC, Hernandez-Valencia M, Reamer C, Fisher S, Joszi A, Hirshman M, Oge A, Walrond S, Przybyla R, Boozer C, Goodyear LJ, Patti ME. Beta-cell secretory dysfunction in the pathogenesis of low birth weight-associated diabetes: a murine model. Diabetes 2005; 54:702-11. [PMID: 15734846 DOI: 10.2337/diabetes.54.3.702] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Low birth weight (LBW) is an important risk factor for type 2 diabetes. We have developed a mouse model of LBW resulting from undernutrition during pregnancy. Restriction of maternal food intake from day 12.5 to 18.5 of pregnancy results in a 23% decrease in birth weight (P < 0.001), with normalization after birth. However, offspring of undernutrition pregnancies develop progressive, severe glucose intolerance by 6 months. To identify early defects that are responsible for this phenotype, we analyzed mice of undernutrition pregnancies at age 2 months, before the onset of glucose intolerance. Fed insulin levels were 1.7-fold higher in mice of undernutrition pregnancies (P = 0.01 vs. controls). However, insulin sensitivity was normal in mice of undernutrition pregnancies, with normal insulin tolerance, insulin-stimulated glucose disposal, and isolated muscle and adipose glucose uptake. Although insulin clearance was mildly impaired in mice of undernutrition pregnancies, the major metabolic phenotype in young mice of undernutrition pregnancies was dysregulation of insulin secretion. Despite normal beta-cell mass, islets from normoglycemic mice of undernutrition pregnancies showed basal hypersecretion of insulin, complete lack of responsiveness to glucose, and a 2.5-fold increase in hexokinase activity. Taken together, these data suggest that, at least in mice, primary beta-cell dysfunction may play a significant role in the pathogenesis of LBW-associated type 2 diabetes.
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Betts P, Mulligan J, Ward P, Smith B, Wilkin T. Increasing body weight predicts the earlier onset of insulin-dependant diabetes in childhood: testing the 'accelerator hypothesis' (2). Diabet Med 2005; 22:144-51. [PMID: 15660730 DOI: 10.1111/j.1464-5491.2004.01368.x] [Citation(s) in RCA: 116] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIMS AND METHODS It has recently been hypothesized that weight gain in childhood accelerates the onset of Type 1 diabetes, as well as increasing its risk, and that Type 1 diabetes and Type 2 diabetes may be one and the same disorder of insulin resistance. An explanation is needed for the rising incidence of childhood diabetes and, to test the Accelerator Hypothesis, we examined the anthropometric measurements recorded from birth in 168 young people presenting with Type 1 diabetes between 1980 and 2002. Pre-onset as well as peri- and post-onset measurements of height and weight were available, and waist circumference was recorded at various intervals after onset. RESULTS The mean birth weight of the children and their height, weight and body mass index (BMI) at diagnosis lay close to the population mean. However, pre-onset and post-onset BMI were both well above the population mean, were closely correlated with each other (r = 0.79, P < 0.001) and (inversely) with age at onset (r = -0.30, P < 0.001). A significant correlation was also found between BMI standard deviation scores (sds) and year of diagnosis (r = 0.27, P < 0.001) and, importantly, waist circumference sds in the children with Type 1 diabetes was found to be substantially greater than average for the population [boys: +0.96 (sd 1.04), girls: +1.30 (sd 0.89)]. CONCLUSIONS The data suggest that children with Type 1 diabetes have become progressively heavier at diagnosis over the past 20 years, and that the heavier child develops it earlier. Waist circumference, a proxy for visceral fat mass and insulin resistance, is substantially greater in children with Type 1 diabetes. Weight centile crossing appears to be an important environmental accelerator which may contribute to or account for the striking increase in both Type 1 diabetes and Type 2 diabetes in childhood. A reduction of body weight and improved lifestyle might reverse this trend in both types of diabetes.
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Affiliation(s)
- P Betts
- Department of Paediatrics, Southampton University Hospitals Trust, UK.
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Samaras T, Elrick H. An alternative hypothesis to the obesity epidemic: Obesity is due to increased maternal body size, birth size, growth rate, and height. Med Hypotheses 2005; 65:676-82. [PMID: 16006048 DOI: 10.1016/j.mehy.2005.05.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2005] [Accepted: 05/12/2005] [Indexed: 12/21/2022]
Abstract
A new hypothesis for dealing with the obesity epidemic is based on changing several factors normally considered desirable by the medical community. These factors include reductions in pre-pregnancy maternal weight, modest reduction of infant birthweight, slower childhood and adolescent growth and reduced caloric intake from infancy through adulthood. The underlining roots for the obesity epidemic involve raised levels of insulin, insulin-like growth factor-1 and cell proliferation which are subject to human control. The implication of this hypothesis is that current measures are inadequate unless a much more comprehensive response is implemented to deal with the obesity epidemic.
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Affiliation(s)
- Thomas Samaras
- Reventropy Associates, 11487 Madera Rosa Way, San Diego, CA 92124-2877, USA.
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Abstract
The metabolic syndrome is a constellation of metabolic abnormalities that result in an increased risk for type 2 diabetes mellitus and cardiovascular disease in adults. It emerges when a person's predisposition for insulin resistance is worsened by increasing central obesity and is largely confined to the overweight population. The United States National Cholesterol Education Program's Adult Treatment Panel III report proposed a set of criteria for the clinical diagnosis of metabolic syndrome in the adult population. A uniform definition for the paediatric population is lacking. Despite this, several studies have demonstrated that features of the syndrome develop in childhood and that the syndrome is present in up to 30% of obese children (body mass index at or above the 95th percentile). Ninety per cent of obese children meet at least one of the five criteria. The degree of abnormality is related to the body mass index, waist circumference and fasting insulin levels. There appears to be a genetic predisposition to the development of the syndrome and certain ethnic groups are at increased risk. The intrauterine environment also appears to play a role. Insulin resistance should be targeted for treatment through exercise and dietary intervention. The role of pharmacotherapeutic agents remains unclear. A uniform definition of the metabolic syndrome for paediatric patients needs to be created. Early intervention should be instituted because many of the features of the syndrome track from childhood into adulthood.
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Affiliation(s)
- Stasia Hadjiyannakis
- Division of Endocrinology, Children’s Hospital of Eastern Ontario, University of Ottawa, Ottawa, Ontario
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Abstract
Over the past 30 years it has become apparent that not all diabetes presenting in childhood is autoimmune type 1. Increasingly type 2 diabetes, maturity onset diabetes of the young, iatrogenic diabetes, and rare syndromic forms of diabetes such as Wolfram's syndrome have been identified in children. This review is aimed at the general paediatrician looking after children with diabetes, and aims to provide an algorithm for assessment, investigation, and suggested management for the newly diagnosed child with suspected non-type 1 diabetes. This article will also be relevant to the child with atypical diabetes-that is, on low insulin doses outside the honeymoon period.
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Affiliation(s)
- J R Porter
- Institute of Child Health, Birmingham Children's Hospital, Steelhouse Lane, Birmingham B4 6NH, UK
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Affiliation(s)
- Terence J Wilkin
- Department of Endocrinology & Metabolism, Peninsula Medical School (Plymouth campus), Level 7, Derriford Hospital, Plymouth PL6 8DH, UK.
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Jeffery AN, Voss LD, Metcalf BS, Wilkin TJ. The impact of pregnancy weight and glucose on the metabolic health of mother and child in the south west of the UK. Midwifery 2004; 20:281-9. [PMID: 15337284 DOI: 10.1016/j.midw.2004.01.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2003] [Revised: 05/13/2003] [Accepted: 01/08/2004] [Indexed: 11/18/2022]
Abstract
OBJECTIVE to explore relationships between maternal pre-pregnancy weight, third trimester glucose, baby birth weight, weight and metabolic health of the mother and child 5 years after birth. DESIGN an observational study set within a non-intervention, longitudinal cohort study looking at insulin resistance in children. SETTING a teaching hospital in the south west of the United Kingdom. PARTICIPANTS 300 mothers and their five-year-old children from randomly selected Plymouth schools, stratified according to socioeconomic status. MEASUREMENTS were obtained from obstetric records maternal pre-pregnant weight, random and fasting third trimester blood glucose, baby birth weight. Five years later the following measurements were made of the mother and child: height, weight, glucose and insulin resistance. FINDINGS five years after the pregnancy, 33% of the mothers were overweight, with an additional 19% obese. In the children 13% of boys were overweight (4% obese), and in the girls, 26% were overweight (5% obese). In the five-year-old children, weight (r=0.28, p<0.001) but not birth weight (r=0.03, p=0.573), correlated with insulin resistance. Maternal pre-pregnant weight was related to both random and fasting third trimester glucose, and to insulin resistance 5 years later. Third trimester fasting glucose, even within a normal range, was a better predictor than random glucose of the baby's birth weight (r=0.39, p=0.044) and the mother's future insulin resistance (r=0.67, p<0.001). No maternal measures predicted insulin resistance in the child at 5 years. CONCLUSIONS maternal weight had an important influence on the gestational environment, and predicted insulin resistance 5 years later. Fasting glucose, even within the reference range, was a better predictor than random glucose of the baby's birth weight and the mother's future insulin resistance. IMPLICATIONS FOR PRACTICE these concern the importance of pre-conception weight management, and support replacement of routine random glucose sampling during the third trimester with an earlier, fasting measurement.
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Low birth weight and longitudinal trends of cardiovascular risk factor variables from childhood to adolescence: the bogalusa heart study. BMC Pediatr 2004; 4:22. [PMID: 15527498 PMCID: PMC534105 DOI: 10.1186/1471-2431-4-22] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2004] [Accepted: 11/03/2004] [Indexed: 11/29/2022] Open
Abstract
Background Several studies have linked low birth weight to adverse levels of cardiovascular risk factors and related diseases. However, information is sparse at a community level in the U.S. general population regarding the effects of low birth weight on the longitudinal trends in cardiovascular risk factor variables measured concurrently from childhood to adolescence. Methods Longitudinal analysis was performed retrospectively on data collected from the Bogalusa Heart Study cohort (n = 1141; 57% white, 43% black) followed from childhood to adolescence by repeated surveys between 1973 and 1996. Subjects were categorized into low birth weight (below the race-specific 10th percentile; n = 123) and control (between race-specific 50–75th percentile; n = 296) groups. Results Low birth weight group vs control group had lower mean HDL cholesterol (p = 0.05) and higher LDL cholesterol (p = 0.05) during childhood (ages 4–11 years); higher glucose (p = 0.02) during adolescence. Yearly rates of change from childhood to adolescence in systolic blood pressure (p = 0.02), LDL cholesterol (p = 0.05), and glucose (p = 0.07) were faster, and body mass index (p = 0.03) slower among the low birth weight group. In a multivariate analysis, low birth weight was related independently and adversely to longitudinal trends in systolic blood pressure (p = 0.004), triglycerides (p = 0.03), and glucose (p = 0.07), regardless of race or gender. These adverse associations became amplified with age. Conclusions Low birth weight is characterized by adverse developmental trends in metabolic and hemodynamic variables during childhood and adolescence; and thus, it may be an early risk factor in this regard.
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