Seamon M, Ahn W, Li AJ, Ritter S, Harris RBS (2019) Leptin receptor-expressing neurons in ventromedial nucleus of the hypothalamus contribute to weight loss caused by fourth ventricle leptin infusions. Am J Physiol Endocrinol Metab 317(4):E586-E596. doi: 10.1152/ajpendo.00205.2019
Objective: To test the importance of VMH leptin responsiveness in mediating weight loss caused by fourth ventricle leptin infusion.
Summary: Leptin did not inhibit food intake and respiratory exchange ratio in rats treated with Leptin-SAP. VMH leptin receptors do not play a significant role in maintaining energy balance in basal conditions, but limit weight gain during positive energy balance.
Usage: Bilateral VMH 75-nl injections of 260 ng/ml of Leptin-SAP or Blank-SAP.