This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Renal physiology, Subject name: Physiology
[{'content': 'GFR is increased by \nSelect and explain. \nA. ANP, B. Vasopressin, C. Histamine, D. Endothelium', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Atrial natriuretic peptide (ANP) a hormone involved in natriuresis and the regulation of renal and cardiovascular homeostasis. It is synthesized as a prohormone in the granules of the myocytes of the atrium and is released into the circulation in response to atrial dilation or increased intravascular fluid volume.Ref: Ganong&;s review of medical physiology; 24th edition; page no; 707', 'role': 'assistant'}]