This pilot trial is designed to investigate the benefits of the use of probiotics in GUT microbiota development and/or immunological biomarkers and how this can be related with the clinical status of very low birth weight preterms during their first weeks of life at the neonatal intensive care unit(NICU).
This pilot trial is designed to investigate the benefits of the use of mixtures of probiotics isolated from human milk in GUT microbiota development and/or immunological biomarkers. Furthermore, the relationship between evaluated parameters and the clinical status of very low birth weight preterms during their first weeks of life at the NICU will be analysed.
Study Type
INTERVENTIONAL
Allocation
NA
Masking
NONE
Enrollment
5
blood and fecal samples were collected from five VLBW preterms which were supplemented with a probiotic mixture of Bifidobacterium breve / Lactobacillus salivarius isolated from human milk
Hospital Universitario La Paz
Madrid, Madrid, Spain
changes in microbiological counts in feces of preterm infants
Adequate dilutions of meconium and stool samples were spread onto general and selective culture media for the enumeration of different bacterial species. Identification of isolates was carried out by matrix-assisted laser desorption ionization-time of flight (MALDI-TOF) mass spectrometry.
Time frame: prior to initiate and at 7th, 14th, 21th, 28th days receiving probiotics
concentration of immunological parameters on feces
multiplex methodology and enzyme-Linked ImmunoSorbent Assay (ELISA) were used to determine a wide range of immune compounds and calprotectin as immune system status biomarkers: immunoglobulin(Ig) G1, IgG2, IgG3, IgG4, IgM, IgA, interleukin (IL)-1b, IL-6, IL-12,interferon-gamma, Tumor necrosis factor-alpha,IL-2,IL-4,IL-10, IL-13, IL-17, IL-8, growth related oncogene- alpha, macrophages chemoattractant protein-1, macrophage inflammatory protein-1b, IL-5, IL-7, granulocytemacrophage -colony stimulating factor (GM-CSF), granulocyte-colony stimulating factor (G-CSF).
Time frame: prior to star and at 7th, 14th and 21st days of receiving probiotics
concentration of immunological parameters on plasma samples
multiplex methodology and enzyme-Linked ImmunoSorbent Assay (ELISA) were used to determine a wide range of immune compounds and calprotectin as immune system status biomarkers: immunoglobulin(Ig) G1, IgG2, IgG3, IgG4, IgM, IgA, interleukin (IL)-1b, IL-6, IL-12,interferon-gamma, Tumor necrosis factor-alpha,IL-2,IL-4,IL-10, IL-13, IL-17, IL-8, growth related oncogene- alpha, macrophages chemoattractant protein-1, macrophage inflammatory protein-1b, IL-5, IL-7, granulocytemacrophage -colony stimulating factor (GM-CSF), granulocyte-colony stimulating factor (G-CSF).
Time frame: 7th, 14th, 19th and 24th days of receiving probiotic).
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