Is the dietary intake of vitamin K associated with obesity parameters among adolescents?/A ingestao dietetica de vitamina K esta associada a parametros de obesidade entre adolescentes?

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Authors: Elizabete Alexandre dos Santos, Kelly Virecoulon Giudici, Nastasha Aparecida Grande de Franca, Barbara Santarosa Emo Peters, Regina Mara Fisberg and Ligia Araujo Martini
Date: Mar. 2019
From: Demetra: Food, Nutrition & Health(Vol. 14, Issue 1)
Publisher: Universidade do Estado do Rio de Janeiro- Uerj
Document Type: Article
Length: 5,239 words
Abstract :

Background: Adolescence is a phase with many changes in body composition, so the investigation of the ingestion of micronutrients like vitamin K becomes important, as it may be indirectly related to obesity among these individuals. Thus, this study aimed to investigate the relationship between vitamin K intake, nutritional status and serum levels of osteocalcin, leptin and adiponectin among adolescents. Methodology: Cross-sectional study conducted with 129 adolescents of both sexes, aged 14 to 18 years, participants in the Sao Paulo Municipal Health Survey 2008 (ISA-Capital 2008). Peripheral venous blood was collected to determine: serum intact total osteocalcin (tOC), undercarboxylated osteocalcin (ucOC), leptin and adiponectin. Spearman's correlation and multiple linear regression were performed to evaluate the associations between vitamin K intake and anthropometric and biochemical variables. Results: In normal weight subjects, vitamin K intake had a positive correlation with age (r= 0.2489; p= 0.0174) and a negative correlation with weight (r= -0.2335; p= 0.0259). In the total sample, vitamin K intake did not correlate with weight (r = -0.0856, p= 0.3442), BMI (r = 0.0669, p = 0.4621), leptin (r= 0.1291, p = 0.1530), adiponectin (r = -0.0682, p = 0.4517), tOC (r = 0.0442, p = 0.6256) and ucOC (r = -0.1136, p = 0.2110). Conclusions: A negative correlation between vitamin K intake and body weight was observed in normal weight subjects. The metabolic pathways involved in the relation between vitamin K intake and body composition remain unclear. Keywords: Vitamin K intake. Phylloquinone. Obesity. Adolescents. Introducao: Na adolescencia, fase em que ocorrem muitas mudancas na composicao corporal, torna-se util investigar a ingestao de micronutrientes como a vitamina K, que podem estar indiretamente relacionados a obesidade nesses individuos. Assim, o objetivo deste estudo foi investigar a relacao entre a ingestao de vitamina K, o estado nutricional e as concentracoes sericas de osteocalcina, leptina e adiponectina em adolescentes. Metodologia: Estudo transversal realizado com 129 adolescentes de ambos os sexos, com idade entre 14 e 18 anos, participantes do Inquerito de Saude no Municipio de Sao Paulo 2008 (ISA-Capital 2008). Amostras de sangue venoso periferico foram coletadas para determinar as concentracoes sericas de osteocalcina total (tOC), osteocalcina nao carboxilada (ucOC), leptina e adiponectina. Foram realizadas correlacao de Spearman e regressao linear multipla para avaliar as associacoes entre o consumo de vitamina K e as variaveis antropometricas e bioquimicas. Resultados: Em individuos com peso normal, a ingestao de vitamina K apresentou correlacao positiva com a idade (r = 0,2489; p = 0,0174) e correlacao negativa com o peso (r = -0,2335; p = 0,0259). Na amostra total, a ingestao de vitamina K nao se correlacionou com peso (r = -0,0856; p = 0,3442), IMC (r = 0,0669; p = 0,4621), leptina (r = 0,1291; p = 0,1530), adiponectina (r = - 0,0682; p = 0,4517), tOC (r = 0,0442; p = 0,6256) e ucOC (r = -0,1136; p = 0,2110). Conclusoes: Em individuos com peso normal, observou-se correlacao negativa entre a ingestao de vitamina K e peso corporal. Ainda nao esta bem elucidado quais as vias metabolicas envolvidas na relacao entre a ingestao de vitamina K e a composicao corporal. Palavras-chave: Ingestao de vitamina K. Filoquinona. Obesidade. Adolescentes.

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Source Citation

Source Citation
dos Santos, Elizabete Alexandre, et al. "Is the dietary intake of vitamin K associated with obesity parameters among adolescents?/A ingestao dietetica de vitamina K esta associada a parametros de obesidade entre adolescentes?" Demetra: Food, Nutrition & Health, vol. 14, no. 1, 2019, p. 1AI+. Accessed 25 May 2020.
  

Gale Document Number: GALE|A610679376