Casein Hydrolysate with Glycemic Control Properties: Evidence from Cells, Animal Models, and Humans

Elaine Drummond, Sarah Flynn, Helena Whelan, Alice B. Nongonierma, Thérèse A. Holton, Aisling Robinson, Thelma Egan, Gerard Cagney, Denis C. Shields, Eileen R. Gibney, Philip Newsholme, Celine Gaudel, Jean Christophe Jacquier, Nessa Noronha, Richard J. Fitzgerald, Lorraine Brennan

Research output: Contribution to journalArticlepeer-review

Abstract

Evidence exists to support the role of dairy derived proteins whey and casein in glycemic management. The objective of the present study was to use a cell screening method to identify a suitable casein hydrolysate and to examine its ability to impact glycemia related parameters in an animal model and in humans. Following screening for the ability to stimulate insulin secretion in pancreatic beta cells, a casein hydrolysate was selected and further studied in the ob/ob mouse model. An acute postprandial study was performed in 62 overweight and obese adults. Acute and long-term supplementation with the casein hydrolysate in in vivo studies in mice revealed a glucose lowering effect and a lipid reducing effect of the hydrolysate (43% reduction in overall liver fat). The postprandial human study revealed a significant increase in insulin secretion (p = 0.04) concomitant with a reduction in glucose (p = 0.03). The area under the curve for the change in glucose decreased from 181.84 ± 14.6 to 153.87 ± 13.02 (p = 0.009). Overall, the data supports further work on the hydrolysate to develop into a functional food product.

Original languageEnglish
Pages (from-to)4352-4363
Number of pages12
JournalJournal of Agricultural and Food Chemistry
Volume66
Issue number17
DOIs
Publication statusPublished - 2 May 2018

Keywords

  • casein
  • hydrolysate
  • insulin
  • nutrition
  • postprandial glycemia

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