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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Increase in oxytocin and vasopressin concentration in the blood outflowing from sella turcica region after superior cervical ganglion stimulation in rat.

The aim of the study was to investigate whether the stimulation of the superior cervical ganglion influences the oxytocin and vasopressin release into the blood in condition of the of the sella turcica integrity. The experiments were performed on male rats under urethane-chloralose anaesthesia. Four 0.7 ml samples of the blood from the sella turcica region flowing through a tube inserted in the maxillary interna vein were collected in the 30, 35, 60 and 90 min of the experiments. The animals were divided into three groups: 1) control, 2) after the exposition of superior cervical ganglion. 3) after the collection of the 1-st sample of the blood the superior cervical ganglion was electrically stimulated for 30 min with trains of pulses. Vasopressin (AVP) and oxytocin ( OXY) were determined in the blood plasma by radioimmunoassay. Stimulation of the superior cervical ganglion evoked an significant increase of AVP and OXY release into the blood. The increase of AVP release occurred after 30 min longer latency than the increase of OXY release.[1]


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