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Obesity does not alter arcuate nucleus (ArcN) insulin receptor (InsR) expression. Top: representative ventral ArcN images of InsR at bregma level −3.24 from a set of control (CON), obesity-resistant (OR), and obesity-prone (OP) rats (n = 3–4 per group). Red puncta are InsR; blue is DAPI nuclear stain. Bottom: ArcN InsR expression did not differ significantly between CON, OR, and OP rats.
