NTS catecholamine cell recruitment by hemorrhage and hypoxia.

  title={NTS catecholamine cell recruitment by hemorrhage and hypoxia.},
  author={Kathryn M. Buller and Doug William Smith and Trevor A Day},
  volume={10 18},
Immunolabelling for Fos and tyrosine hydroxylase was used to determine the patterns of activation of nucleus tractus solitarius catecholamine cells in response to graded levels of hemorrhage (0, 4, 8, 12 and 16 ml/kg) and systemic hypoxia (21, 14, 12, 10 and 8% O2) in conscious rats. Both stimuli elicited graded catecholamine cell recruitment with thresholds of 8 ml/kg and 12% O2. The majority of responsive neurons were A2 noradrenergic rather than C2 adrenergic cells. After hemorrhage most Fos… CONTINUE READING

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