BACKGROUND: The benefit of probiotics in newborn children in relation to allergy and general morbidity later in life appears to be controversial. Allergic diseases represent an increasingly important health problem worldwide in recent years. This is evident in all age groups. The occurrence of allergic illnesses also continues to rise exponentially, and thus the use of preventive and prognostic methods, particularly in children with an inherently higher risk of allergy, is gaining increased importance. Since the advent of probiotics the effect of probiosis on immunity through alterations of composition and function of the human gut microbiome has been increasingly studied. The exact mechanisms have not yet been clearly defined. The Academy of Sciences of the Czech Republic (The Czech Academy of Sciences has suggested that the expression of TH1 and TH2 cytokines in umbilical blood is associated with an increased risk of allergies. The counter -balance of Th1 and Th2 affect Immunoglobulin E (IgE) production and maturation of the gastrointestinal tract epithelium. CASE PRESENTATION: We examined IgE levels in 3000 samples of umbilical blood taken from children born into families with a positive history of allergy in one or both parents from 2007 to 2017. At the age of ten days, those with high IgE were given Colinfant Newborn (a lyophilized non-pathogenic strain of Escherichia.coli) for one month, three times weekly. At 15 months and three years we investigated the levels of Immunoglobulins E,A and G, and the incidence of illness and allergy. The results revealed that allergy and high umbilical IgE is strongly linked with family history (p ≤ 0.001). We also detected differences in seasonality, especially with regards to pollen allergies. Eighty percent of children treated with Colinfant Newborn had significantly reduced IgE and morbidity at 13-15 months and 3 years, and furthermore without any clinical signs of allergy. Normalization of Immunoglobulins A and G was seen in 90% of treated subjects (p ≤ 0.001). These levels significantly correlated with an almost negligible morbidity up to 4 years of life. Colinfant Newborn, a lyophilized strain of Esherichia coli (E. coli), and a normal component of intestinal flora, readily colonizes the intestinal tract. It's long term presence significantly stimulates the production of specific and non-specific intestinal antibodies. and optimalizes immune development through tolerance. In our study Colinfant Newborn reduced the incidence of infections later in life by safely and effectively normalizing immunoglobulin levels in the majority of treated patients. CONCLUSION: Our study strongly suggests as positive effect of physiological Escherichia coli on the microbiome of newborn children as evidenced by a significantly reduced incidence of allergy and morbidity when applied early in life. These benefits appear to be strongly strain specific.

Department of Clinical Chemistry and Hematology Mulac Hospital Pilsen Czech Republic

Department of Health Accounting and Statistics University Hospital Pilsen Pilsen Czech Republic

Department of Pediatrics Charles University Faculty of Medicine Faculty Hospital Pilsen Czech Republic

Mulac Hospital Newborn Department Pilsen Czech Republic

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