Small-intestinal dysfunction accompanies the complex endocrinopathy of human proprotein convertase 1 deficiency
J. Clin. Invest. Robert S. Jackson, et al. 112:1550 doi:10.1172/JCI18784 [
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Figure 2Subject A secreted mature gastrin, but her elevated postprandial plasma progastrin level suggested some impairment of processing. (
a) Schematic of sequential cleavage and C-terminal modification of gastrin forms. G17 is mature gastrin. (
b and
c) Plasma progastrin (
b) and total amidated gastrin (
c) were measured by RIA using antisera L289 and L2, respectively, in the subject (squares) and ten healthy controls (triangles), before and at 20-minute intervals after the start of a high-fat and -carbohydrate test meal. Mature gastrin, G17, was also measured in the subject, using the highly specific antiserum L6 (circles). Control data are mean ± SE.