title: [Nutritional status, metabolic changes and white blood cells in adolescents].
abstract: To analyze the relationship between the peripheral blood white cells, metabolic changes, and nutritional status of adolescents with and without excess weight and body fat.
  
  
  
  This cross-sectional study evaluated the body mass index (BMI) and percentage body fat (%BF) in 362 adolescents from 15 to 19 years of age, of both sexes. White blood cell count, platelet count, uric acid, fasting glucose, insulin, and lipid profile were measured. The inclusion criteria were agreement to participate in the study and signature of the informed consent. Exclusion criteria were: presence of chronic or infectious disease; use of medications that could cause changes in biochemical tests; pregnancy; participation in weight reduction and weight control programs; use of diuretics and laxatives; or the presence of a pacemaker. The following statistical tests were applied: Kolmogorov-Smirnov test, Student's t or Mann-Whitney test, Pearson or Spearman correlation tests, and chi-squared test, considering p<0.05.
  
  
  
  Overweight was observed in 20.7% of adolescents. The total cholesterol (TC) had a higher percentage of inadequacy (52.2%), followed by high-density lipoprotein (HDL) (38.4%). There was a positive correlation between white cells and serum lipids, insulin, body fat, and BMI. Monocytes were negatively correlated with BMI, and rods with BMI, body fat, and insulin.
  
  
  
  Nutritional status is related to an inflammatory process, and adolescents with excess weight or body fat presented higher amounts of white blood cells.
authors.affiliation: Universidade Federal de Viçosa (UFV), Viçosa, MG, Brasil. Electronic address: tmso282@yahoo.com.br.
authors.forename: Thatianne Moreira Silva
authors.initials: TM
authors.lastname: Oliveira
authors.affiliation: Universidade Federal de Viçosa (UFV), Viçosa, MG, Brasil.
authors.forename: Franciane Rocha
authors.initials: FR
authors.lastname: de Faria
authors.affiliation: Universidade Federal do Espírito Santo (UFES), Alegre, ES, Brasil.
authors.forename: Eliane Rodrigues
authors.initials: ER
authors.lastname: de Faria
authors.affiliation: Universidade Federal de Viçosa (UFV), Viçosa, MG, Brasil.
authors.forename: Patrícia Feliciano
authors.initials: PF
authors.lastname: Pereira
authors.affiliation: Universidade Federal de Viçosa (UFV), Viçosa, MG, Brasil.
authors.forename: Sylvia C C
authors.initials: SC
authors.lastname: Franceschini
authors.affiliation: Universidade Federal de Viçosa (UFV), Viçosa, MG, Brasil.
authors.forename: Silvia Eloiza
authors.initials: SE
authors.lastname: Priore
mesh_terms: D000273:Adipose Tissue / Q000378:metabolism*; D000293:Adolescent; D001823:Body Composition; D001835:Body Weight; D002784:Cholesterol / Q000097:blood; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007958:Leukocyte Count; D007962:Leukocytes; D008074:Lipoproteins / Q000097:blood; D008297:Male; D009752:Nutritional Status; D014280:Triglycerides / Q000097:blood; D055815:Young Adult
chemical_list: D008074:Lipoproteins; D014280:Triglycerides; D002784:Cholesterol
keywords: Adolescent; Adolescente; Contagem de leucócitos; Fatores de risco; Leukocyte count; Obesidade; Obesity; Risk factors