Absence in human milk of bovine β-lactoglobulin ingested by the mother. Unreliability of ELISA measurements

E. Bertino, D. Farinasso, M. Cavaletto, A. Coscia, G. Prandi, M. G. Giuffrida, S. Costa, C. Fabris, A. Conti

Research output: Contribution to journalArticlepeer-review

Abstract

Objectives. To analyze the presence of bovine β-LG in breast milk. Methods. Human milk samples from 14 healthy non-atopic women on diets with different cow's milk contents were examined. The total concentration of β-LG immuno-like proteins (β-LGIP) was determined by enzyme linked immunosorbent assay (ELISA). Identification of antigens was done by N-terminal sequencing. Results. β-LGIP reactivity of the milk from subjects on different diets was not significantly different. Human lactoferrin, β-casein and α-lactalbumin, were identified as cross-reacting antigens. Conclusions. False-positive results in ELISA determinations of bovine β-LG In human milk might be due to cross-reactions between polyclonal antibodies and different protein antigens.

Original languageEnglish
Pages (from-to)15-19
Number of pages5
JournalActa Biomedica
Volume68
Issue numberSUPPL. 1
Publication statusPublished - 1997
Externally publishedYes

Keywords

  • Bovine β-lactoglobuim
  • Cow's milk proteins allergy
  • Cross-reaction
  • ELISA
  • Human milk

Fingerprint

Dive into the research topics of 'Absence in human milk of bovine β-lactoglobulin ingested by the mother. Unreliability of ELISA measurements'. Together they form a unique fingerprint.

Cite this