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. 2014 Apr 22;5:57. doi: 10.3389/fendo.2014.00057

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Copyright © 2014 Proshchina, Krivova, Barabanov and Saveliev.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Patterns of innervation in human fetal and adult pancreas. Arrows indicate some ganglia. Bar = 50 mcm. (A,B) Innervation of the pancreas in the prefetal period showing autonomic ganglia in close proximity to the ducts. (A) NSE (blue) and S-100 (red) double staining. (B) NSE (blue) and insulin (red) double staining. (C) Innervation of the pancreas in early fetal period (gw 14) showing large bundles of nerve fibers and ganglia. Note that some nerve fibers are passing between two nerve ganglia. Insulin (blue) and S-100 (red) double staining. (D) The close proximity of the fine nerve fiber and a Langerhans’ islet at gw 14. Insulin (blue) and S-100 (red) double staining. (E–G) The consequent increase of pancreatic innervation in early and middle fetal periods. Insulin (blue) and S-100 (red) double staining. (H) Innervation of the adult pancreas. Insulin (blue) and S-100 (red) double staining.