Association between hematological profile and serum 25-hydroxyvitamin D levels and FokI polymorphism in individuals with cystic fibrosis

ABSTRACT Objective The present study aimed at investigating the association between hematological profile and serum 25-hydroxyvitamin D (25[OH]D) levels and Fokl polymorphism of the vitamin D receptor gene in individuals with Cystic Fibrosis. Methods A cross-sectional study that involved 18 men and...

Full description

Saved in:
Bibliographic Details
Published inRevista de nutrição Vol. 31; no. 2; pp. 211 - 220
Main Authors ASSIS, Milena Luana Coelho de, CARTAXO, Constantino Giovanni Braga, COSTA, Maria José de Carvalho, QUEIROZ, Dayanna Joyce Marques, PERSUHN, Darlene Carmati, GONÇALVES, Maria da Conceição Rodrigues
Format Journal Article
LanguageEnglish
Published 01.03.2018
Online AccessGet full text

Cover

Loading…
More Information
Summary:ABSTRACT Objective The present study aimed at investigating the association between hematological profile and serum 25-hydroxyvitamin D (25[OH]D) levels and Fokl polymorphism of the vitamin D receptor gene in individuals with Cystic Fibrosis. Methods A cross-sectional study that involved 18 men and women aged 0-25 years with Cystic Fibrosis. Socio-demographic information and the factors associated with sun exposure were obtained. Weight, height, and arm circumference were also measured. Blood sample was collected for the analysis of biochemical parameters (25[OH]D, parathyroid hormone, and calcium levels and blood count) and for the validation of the presence of FokI polymorphism in the vitamin D receptor gene. Results Among the participants, 33.33% (n=6) had vitamin D deficiency (19.60±6.180 ng/mL), and 27.8% (n=5) presented with anemia and low weight for age. In terms of genotype, 5.6% (n=1) presented with the FF genotype, 72.3% (n=13) had the Ff genotype, and 22.2% (n=4) had the ff genotype. Serum 25(OH)D levels were associated with hemoglobin (p=0.008) and hematocrit (p=0.019) levels and leukocyte count (p=0.0114). No association was observed between 25(OH)D levels and the genotypes (FF, Ff, and ff) (p=0.2451). In addition, an association was observed between FokI polymorphism and the total leukocyte count (p=0.01). Conclusion An association was observed between serum 25(OH)D levels and hemoglobin and hematocrit levels and leukocyte count in individuals with Cystic Fibrosis. Moreover, FokI polymorphism was associated with total leukocyte count. RESUMO Objetivo Esta pesquisa teve por objetivo investigar a associação do perfil hematológico com os valores séricos de 25-hidroxivitamina D e polimorfismo FokI do gene receptor da vitamina D em indivíduos com fibrose cística, acompanhados em um centro de referência do Nordeste Brasileiro. Métodos Trata-se de estudo transversal, realizado com 18 indivíduos com fibrose cística, de ambos os sexos, com idade entre zero e 25 anos. Foram coletadas informações sociodemográficas e investigados fatores associados à exposição solar. Também foram aferidas medidas antropométricas de peso, estatura e circunferência do braço. O sangue foi coletado para análise dos parâmetros bioquímicos (25-hidroxivitamina D, paratormônio, cálcio e hemograma) e verificação da presença do polimorfismo FokI do gene receptor da vitamina D. Resultados Da amostra total, 33,33% (n=6) apresentaram insuficiência/deficiência de vitamina D (19.60 ±6.180 ng/ml), e 27,8% (n=5) acusaram anemia e baixo peso para a idade. No tocante aos genótipos, 5,6% (n=1) apresentaram genótipo FF, 72,3% (n=13) apresentaram genótipo Ff e 22,2% (n=4) apresentaram genótipo ff. Houve associação entre os valores séricos de 25-hidroxivitamina D e os de hemoglobina (p=0.008), hematócrito (p=0.019) e leucócitos (p=0.0114). Não houve associação entre os valores de 25-hidroxivitamina D e os genótipos (FF, Ff e ff) (p=0.2451). Além disso, houve associação entre o polimorfismo FokI e a contagem total de leucócitos (p=0.01). Conclusão O presente estudo encontrou associação entre os valores séricos de 25-hidroxivitamina D e os de hemoglobina, hematócrito e leucócitos nos indivíduos analisados. Além disso, encontrou-se associação do polimorfismo FokI com a contagem total de leucócitos.
ISSN:1415-5273
1678-9865
DOI:10.1590/1678-98652018000200007