Abstract:
BACKGROUND/AIMS:The autonomic nervous system (ANS) provides neurogenic control of inflammatory reactions. ANS changes in obesity may result in inflammation. This study sought to gain insight into cardiac autonomic dysfunction and inflammation in childhood obesity, and to gather pilot data on the potential relationship between altered ANS and inflammation. METHODS:Fifteen obese children and adolescents without metabolic complications and 15 nonobese controls underwent heart rate variability and impedance cardiography testing during rest, mental stress, and physical stress. Inflammatory cytokines and immune reactivity were measured. RESULTS:There was no statistically significant difference between groups in cardiac ANS testing at rest or in response to stress. Median high-sensitivity C-reactive protein (hsCRP) was higher in the obese group [obese 2.6 mg/l (IQR 1.6-11.9); nonobese 0.3 mg/l (IQR 0.2-0.7); p < 0.001]. Interleukin-6 and tumour necrosis factor-α were similar between groups. Immune reactivity testing (in vitro Toll-like receptor stimulation) revealed a strong, but comparable, inflammatory response in both groups. CONCLUSIONS:Obese children and adolescents without metabolic complications did not have cardiac ANS dysfunction. While hsCRP was elevated, systemic cytokines were not raised. Compared to prior studies, which often focused on children with obesity and its complications, it is encouraging that obese children without metabolic complications may not yet have autonomic dysfunction.
journal_name
Horm Res Paediatrjournal_title
Hormone research in paediatricsauthors
Hursh BE,Fazeli MS,Wang S,Marchant EA,Woo P,Elango R,Lavoie PM,Chanoine JP,Collet JPdoi
10.1159/000445685subject
Has Abstractpub_date
2016-01-01 00:00:00pages
339-46issue
5eissn
1663-2818issn
1663-2826pii
000445685journal_volume
85pub_type
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journal_title:Hormone research in paediatrics
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journal_title:Hormone research in paediatrics
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journal_title:Hormone research in paediatrics
pub_type: 临床试验,杂志文章,多中心研究
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journal_title:Hormone research in paediatrics
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journal_title:Hormone research in paediatrics
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journal_title:Hormone research in paediatrics
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journal_title:Hormone research in paediatrics
pub_type: 临床试验,杂志文章
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journal_title:Hormone research in paediatrics
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journal_title:Hormone research in paediatrics
pub_type: 临床试验,杂志文章,多中心研究
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