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Kumar S, King EC, Christison AL, Kelly AS, Ariza AJ, Borzutzky C, Cuda S, Kirk S, Ali L, Armstrong S, Binns H, Brubaker J, Cristison A, Fox C, Gordon C, Hendrix S, Hes D, Jenkins L, Joseph M, Heyrman M, Liu L, McClure A, Hofley M, Negrete S, Novick M, O'Hara V, Rodrue J, Santos M, Stoll J, Stratbucker W, Sweeney B, Tester J, Walka S, deHeer H, Wallace S, Walsh S, Wittcopp C, Weedn A, Yee J, Grace B. Health Outcomes of Youth in Clinical Pediatric Weight Management Programs in POWER. J Pediatr 2019; 208:57-65.e4. [PMID: 30853195 DOI: 10.1016/j.jpeds.2018.12.049] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 12/13/2018] [Accepted: 12/19/2018] [Indexed: 12/28/2022]
Abstract
OBJECTIVE To describe treatment outcomes of children and adolescents enrolled in the Pediatric Obesity Weight Evaluation Registry, a consortium of multicomponent pediatric weight management programs in the US. STUDY DESIGN This multicenter prospective observational cohort study, established in 2013, includes youth (2-18 years of age) with obesity enrolled from 31 Pediatric Obesity Weight Evaluation Registry (POWER) sites over a 2-year period and followed up to 12 months. Weight status was evaluated by the percentage of the 95th percentile for body mass index (%BMIp95). Associations of weight status outcomes with patient characteristics and program exposure were analyzed with multivariable mixed effects modeling. RESULTS We included 6454 children and adolescents (median age, 11 years; IQR, 9-14 years; 53% white, 32% Hispanic; 73% with severe obesity) who were enrolled in POWER. Median changes in %BMIp95 for this cohort were -1.88 (IQR, -5.8 to 1.4), -2.50 (IQR, -7.4 to 1.8), -2.86 (IQR, -8.7 to 1.9), at 4-6, 7-9, and 10-12 of months follow-up, respectively (all P < .05). Older age (≥12 years), greater severity of obesity, and Hispanic race/ethnicity were associated with better improvement in %BMIp95. A 5-percentage point decrease in %BMIp95 was associated with improvement in cardiometabolic risk factors. CONCLUSIONS Overall, treatment in pediatric weight management programs is associated with a modest median decrease in BMI as measured by change in %BMIp95. Further studies are needed to confirm these findings, as well as to identify additional strategies to enhance the effectiveness of these multicomponent interventions for youth with severe obesity. TRIAL REGISTRATION ClinicalTrials.gov: NCT02121132.
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Affiliation(s)
- Seema Kumar
- Division of Pediatric Endocrinology and Metabolism, Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, MN
| | - Eileen C King
- Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Department of Pediatrics, University of Cincinnati, College of Medicine, Cincinnati, OH
| | - Amy L Christison
- Department of Pediatrics, University of Illinois College of Medicine at Peoria, Peoria, IL
| | - Aaron S Kelly
- Department of Pediatrics, Center for Pediatric Obesity Medicine, University of Minnesota Medical School, Minneapolis, MN
| | - Adolfo J Ariza
- Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL; Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - Claudia Borzutzky
- Department of Pediatrics, Keck School of Medicine of USC, Los Angeles, CA; Diabetes and Obesity Program, Children's Hospital Los Angeles, Los Angeles, CA
| | - Suzanne Cuda
- Department of Pediatrics, Pediatric Weight Management, Children's Hospital of San Antonio, Baylor College of Medicine, Houston, TX
| | - Shelley Kirk
- Department of Pediatrics, University of Cincinnati, College of Medicine, Cincinnati, OH; The Heart Institute, Center for Better Health and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, OH.
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Abstract
1,1-Dichloroethylene (1,1-DCE) causes lung and liver necrosis in mice. Covalent binding of [14C]1,1-DCE to isolated lung and liver microsomes from CD-1 mice required NADPH and was strongly inhibited by carbon monoxide. Lung and liver microsomes isolated from animals treated with phenobarbital demonstrated no changes in covalent binding of [14C]1,1-DCE compared with those from vehicle-treated animals. While 3-methylcholanthrene caused no alterations in binding to lung microsomes, the same pretreatment resulted in significantly increased levels of binding to liver microsomes. Piperonyl butoxide caused significant decreases in covalent binding to lung and liver microsomes; SKF 525-A significantly inhibited binding to liver microsomes but had no effect on lung microsomes. The incubation of liver microsomes with inhibitors required more NADPH than those performed with lung microsomes. The results demonstrate that reactive metabolites of 1,1-DCE can be formed by lung and liver microsomes, and suggest the involvement of cytochrome P-450 isozymes in the lung and liver injury induced by the halocarbon. However, metabolic activation by lung and liver microsomes may additionally involve non P-450 dependent mechanisms as evidenced by relatively high levels of nonspecific binding of 1,1-DCE.
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Affiliation(s)
- P G Forkert
- Department of Anatomy, Queen's University, Kingston, Ont., Canada
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