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Figure 1 | BMC Neuroscience

Figure 1

From: Changes in the 5-HT2Areceptor system in the pre-mammillary hypothalamus of the ewe are related to regulation of LH pulsatile secretion by an endogenous circannual rhythm

Figure 1

Experiment 1 (RSD): Mean (± SEM) plasma LH concentration in 2 groups of ovariectomized estradiol-treated Ile-de-France ewes subjected to the artificial photoperiodic regimens indicated by the horizontal bars. High ewes (n = 6; upper graph) were subjected to 3 months of short days (8L: 16D; April to July, data not shown) – 3 months of long days (16L: 8D, July to October), and 3 months of short days (8L: 16D, October to January). Low ewes (n = 6) were subjected to 3 months of long days (April to July, data not shown), and 6 months of short days (July to January). Inserts depict representative LH pulsatile secretory profiles the day before sacrifice (blood sampled every 12 min for 5 hours).

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BMC Neuroscience

ISSN: 1471-2202

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