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. Author manuscript; available in PMC: 2009 Apr 22.
Published in final edited form as: Neuroendocrinology. 2007 Nov 15;87(3):129–141. doi: 10.1159/000111136

Figure 1.

Figure 1

Individual profiles of pulsatile LH release, measured in serum samples collected every 10 minutes in representative young (A, B) and middle-aged (C, D) OVX, cholesterol replaced female rats. Please note that the x-axis scales vary among treatment groups to better demonstrate individual pulses. Animals were injected with vehicle or ifenprodil (10 mg/kg) one hour after blood sampling began. Arrows indicate the time point immediately preceding the injection. Asterisks (*) indicate significant pulses as indicated by the Cluster pulse detection software. Chol = cholesterol.