Determination of B Vitamins by Double-Vortex-Ultrasonic Assisted Dispersive Liquid-Liquid Microextraction and Evaluation of their Possible Roles in Susceptibility to COVID-19 Infection: Hybrid Box-Behnken Design and Genetic Algorithm.
J Chromatogr Sci
; 60(9): 897-906, 2022 Nov 05.
Artigo
em Inglês
| MEDLINE | ID: covidwho-2248442
ABSTRACT
OBJECTIVES:
In this study, double-vortex-ultrasonic assisted dispersive liquid-liquid microextraction (DVUDLLME) was applied to determine the concentration of vitamin B9, 5-methyl tetrahydrofolate (5-MeTHF) and vitamin B12 in human serum samples.METHODS:
High-performance liquid chromatography (HPLC) coupled with DVUDLLME was applied to analyze vitamins B in patients with Coronavirus disease (COVID-19). Then, significant variables were chosen and optimized using the hybrid Box-Behnken design and genetic algorithm.RESULTS:
The detection limits of DVUDLLME-HPLC were 0.21 ng mL-1, 0.18 ng mL-1 and 55 pgmL-1 for vitamin B9, 5-MeTHF and vitamin B12, respectively. Subsequently, DVUDLLME-HPLC was applied to measure B vitamins and investigated their possible roles in susceptibility to COVID-19 infection. Fifty-seven percent of the patients without an underlying disease have significantly lower serum vitamin B12 levels in comparison to controls.CONCLUSIONS:
The advantages of this method are low detection limit, simple preparation, low retention time and the use of a cheaper technique instead of expensive mass detectors. The results suggest that vitamin B12 deficiency may decrease the immune system defenses against COVID-19 patients without an underlying disease and cause the disease to become severe. However, these works need a large population and further research, such as a randomized trial and a cohort study.
Texto completo:
Disponível
Coleções:
Bases de dados internacionais
Base de dados:
MEDLINE
Assunto principal:
Complexo Vitamínico B
/
Microextração em Fase Líquida
/
COVID-19
Tipo de estudo:
Estudo de coorte
/
Estudo experimental
/
Estudo observacional
/
Estudo prognóstico
/
Ensaios controlados aleatorizados
Limite:
Humanos
Idioma:
Inglês
Revista:
J Chromatogr Sci
Ano de publicação:
2022
Tipo de documento:
Artigo
País de afiliação:
Chromsci
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