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Acta bioquímica clínica latinoamericana

versión impresa ISSN 0325-2957

Resumen

BEQUER MENDOZA, Leticia et al. Biochemical profile and reference values in umbilical cord blood. Acta bioquím. clín. latinoam. [online]. 2014, vol.48, n.3, pp.311-317. ISSN 0325-2957.

Taking into account the fundamental purpose of laboratory medicine, which is to provide the specialist with information that will be useful in the process of medical decision, it has been decided to establish the biochemical profile of healthy newborns of Villa Clara through the quantification of indicators in cord blood and the preliminary estimate of their reference values for our population. Sera samples were used, obtained from umbilical cord blood of 80 healthy newborns (40 females and 40 males) who met the inclusion criteria for this study. Were quantified clinical chemistry parameters (urea, creatinine, alanine aminotransferase, aspartate aminotransferase, total bilirubin, alkaline phosphatase, gamma-glutamyl transferase, cholesterol, triglycerides and VLDL). Immunological parameters (immunoglobulins IgM, IgG and IgA, and C3 and C4 proteins of the complement system) and minerals (iron, copper, zinc, potassium, magnesium and calcium) were quantified. Finally reference values for each parameter were established, taking the interval corresponding to the interpencentil center (95%) interval delimited by the 2.5 and 97.5 percentiles. No statistically significant differences were found depending on the sex of the newborn in any analyte. With the values found for the indicators studied, biochemical characterization of infants in Villa Clara was obtained. This knowledge is a tool that can enable access to rapid diagnosis of many diseases. Probably some indicator change in its value in relation to normal umbilical cord blood can serve as a biomarker for early detection of specific disease or risk.

Palabras clave : Newborns; Umbilical cord blood; Reference ranges; Biochemical profile; Immunological parameters; Macro minerals; Trace minerals.

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