Immunoglobulin Y is a water-soluble protein present in high concentration in hen serum and egg yolk. IgY has applications in many fields, e.g., from food stuff to the mass production of antibodies. In this work, we have implemented an electrochemical immunosensor for IgY based on templated nanoelectrodes ensembles. IgY is captured by the templating polycarbonate and reacted with anti-IgY labele...

Although their high potential as alternative biopharmaceuticals, less than 2% of the total polyclonal antibodies produced worldwide correspond to immunoglobulin Y (IgY) due difficulties in isolating them from egg yolk (complex biological matrix). In this work, water-soluble proteins fraction (WSPF) was first obtained and present identified by one-dimensional gel electrophoresis (SDS-PAGE) label...

BACKGROUND IgY antibodies are serum immunoglobulin in birds, reptiles and amphibians, and are transferred from serum to egg yolk to confer passive immunity to their embryos and offspring. Currently, the oral passive immunization using chicken IgY has been focused as an alternative to antibiotics for the treatment and control of diarrhea in animals and humans. This systematic review was focused ...

OBJECTIVES As an alternative therapeutic approach for the prevention and treatment of bacterial infections with P. aeruginosa of cystic fibrosis (CF) patients, chicken yolk antibodies (IgY) could be used. The most significant advantage of IgY, in contrast to mammalian IgG, consists in the fact, that when bound to the antigen, they usually do not induce inflammatory reaction. In addition, the si...

Previously, the protective efficacy of antiAspergillus fumigatus IgY antibodies; prepared in egg laying hens, was reported in immunocompetent BALB/c mice. Since A. fumigatus infections are of main concern in immunocompromised patients, the aim of this study was to test the efficacy of the same product in Cyclosporine A treatedBALB/c mice. Heatkilled A. fumigatus was emulsified with both Freund’...

Porphyromonas gingivalis gingipains is suspected to be one of the most important causative agents of periodontitis. We postulated that the inhibition of gingipains may reduce the pathogenic nature of P. gingivalis. Anti-P. gingivalis egg yolk antibody (IgY-GP) was isolated from the yolks of hens immunized with purified gingipains. We applied IgY-GP gel subgingivally in periodontitis patients wh...

Clostridium difficile infection (CDI) are the leading cause of world-wide nosocomial acquired diarrhea. The current main clinical challenge in CDI is the elevated rate of infection recurrence that may reach up to 30% of the patients, which has been associated to the formation of dormant spores during the infection. We sought to characterize the effects of oral administration of specific anti-sp...

The present study was carried out in commercial layer chickens to assess the bacteriostatic potency of egg yolk immunoglobulin IgY against food poisoning pathogen. The O antigen of food poisoning pathogen Escherichia coli was prepared and used to immunize commercial layer chickens. The eggs which contain antiE.Coli IgY was collected on 30 th day of first injection and stored at 4 0 C. The antib...

The present study was an attempt to raise hen egg yolk Ig (IgY) simultaneously directed against Salmonella Enteritidis (SE) and Salmonella Typhimurium (ST) in the same egg yolk. The immunopotentiating effect of 2 different adjuvants -- Freund's adjuvants (FA) and immunostimulating complexes matrix (IM) -- on antibody response was also evaluated. Bacterial outer membrane proteins (OMP) were sele...

The data presented in this article are related to the research article entitled "Development of IgY antibodies against anti-snake toxins endowed with highly lethal neutralizing activity" (da Rocha et al., 2017) [1]. Complementarity-determining region (CDR) sequences are variable antibody (Ab) sequences that respond with specificity, duration and strength to identify and bind to antigen (Ag) epi...