Cholecystokinin (CCK) and the different molecular forms of CCK are well established as biomarkers for satiety but accurate analysis has been limited by the multiple naturally occurring forms and extensive similarities to gastrin. Changes in levels of one form, CCK-8, a naturally occurring eight amino acid peptide of CCK, have been correlated with satiety responses. Endogenous CCK-8 has not been well characterized in Syrian Golden hamsters, an important model in the study of fat uptake and digestion.
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