胃肠激素存在于内分泌细胞、外周神经系统和中枢神经系统中.它不仅通过体液途径,而且可以通过存在于胃肠道壁内神经丛中的肽能神经或作为神经递质发挥其调节运动的功能.由于受研究方式、实验试剂的剂量大小和给药方式、实验动物种属等因素的影响,实验结果及结论有时出现不一致的现象. Gut hormones are present in endocrine cells, the peripheral nervous system, and the central nervous system, and not only through the humoral pathway, but also through the peptidergic nerves present in the plexus of the gastrointestinal tract or as neurotransmitters Function.Due to the research methods, the dose of experimental reagents and the mode of administration, the experimental animal species and other factors, the experimental results and conclusions sometimes appear inconsistent phenomenon.