1. Ventral noradrenergic projections (VNAB) from lateral tegmental (A1, A2) and dorsal noradrenergic projections (DNAB) from the coeruleal (A6) as well as A1 cell groups in the brain-stem of the rat were lesioned by intracerebral injection of 6-hydroxydopamine.
2. A marked increase in plasma renin activity and adrenaline concentrations followed haemorrhage (0.5 ml/100 g body weight) in the sham-operated rats. VNAB-lesioned rats showed a similar response to the sham-operated controls, but in DNAB-lesioned animals the rise of plasma renin was markedly attenuated.
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© 1984 The Biochemical Society and the Medical Research Society
1984
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