part of part of has part has part has_part characteristic of has modifier abnormal glucose homeostasis abnormal circulating glucagon level anomaly in the blood concentration of the peptide hormone secreted by the alpha cells of the pancreas that normally plays an important role in regulation of blood glucose concentration, ketone metabolism, and several other biochemical and physiological processes MPheno.ontology MP:0002695 abnormal glucagon level abnormal circulating HG-factor level abnormal circulating hormone level amount abnormal pro-glucagon blood