title: C-reactive protein levels and their relationship with metabolic syndrome and insulin resistance in Mexican adolescents.
abstract: OBJECTIVE
  To investigate the relationship of high sensitive C-reactive protein (hs-CRP) with metabolic syndrome components and insulin resistance in Mexican adolescents.
  
  
  METHODS
  325 adolescents, 182 girls and 143 boys, aged 12-16 years were studied. Standardized clinical measurements and plasma lipids, glucose, insulin and hs-CRP were determined. For metabolic syndrome (MS), the NCEP-ATP III definition was used.
  
  
  RESULTS
  MS prevalence was 13%. The most frequent MS components were low HDL-C (50%), high triglycerides (35%), and high waist circumference (28%). hs-CRP median and 75th percentile values for all children were 0.42 and 0.97 mg/dl, respectively. The highest values of hs-CRP were found in children who had MS, p <0.007. hs-CRP was positively correlated with waist circumference, triglycerides, and negatively with HDL-C, p <0.01, and positively with insulin, p <0.001. In stepwise multiple regression analysis, body mass index and HOMA-IR accounted for 10.4% and 12.7% of hs-CRP levels, respectively.
  
  
  CONCLUSIONS
  Body mass index and insulin resistance have an independent effect on high hs-CRP levels, and explain a large part of hs-CRP concentrations in adolescents. Central adipose tissue might induce an inflammatory state that could be identified from adolescence.
authors.affiliation: Instituto Nacional de Cardiología Ignacio Chávez, Departamento de Endocrinología, México. gccardosos@yahoo.com
authors.forename: G
authors.initials: G
authors.lastname: Cardoso-Saldaña
authors.forename: J G
authors.initials: JG
authors.lastname: Juárez-Rojas
authors.forename: J
authors.initials: J
authors.lastname: Zamora-González
authors.forename: M
authors.initials: M
authors.lastname: Raygoza-Pérez
authors.forename: R
authors.initials: R
authors.lastname: Martinez-Alvarado
authors.forename: R
authors.initials: R
authors.lastname: Posadas-Sánchez
authors.forename: C
authors.initials: C
authors.lastname: Posadas-Romero
mesh_terms: D000293:Adolescent; D000886:Anthropometry; D001786:Blood Glucose / Q000378:metabolism; D001794:Blood Pressure / Q000502:physiology; D002097:C-Reactive Protein / Q000378:metabolism*; D002648:Child; D002784:Cholesterol / Q000097:blood; D005260:Female; D006801:Humans; D007328:Insulin / Q000097:blood; D007333:Insulin Resistance / Q000502:physiology*; D008297:Male; D024821:Metabolic Syndrome / Q000097:blood* / Q000453:epidemiology; D008800:Mexico / Q000453:epidemiology; D015995:Prevalence; D012044:Regression Analysis; D014280:Triglycerides
chemical_list: D001786:Blood Glucose; D007328:Insulin; D014280:Triglycerides; D002097:C-Reactive Protein; D002784:Cholesterol