Adrenergic receptors in rat spinal cord

Radioligand binding assays were used to demonstrate the presence of alpha 1, alpha 2 and beta receptors in rat spinal cord. Specific and saturable binding was exhibited for [3H]-WB 4101 (alpha 1), [3H]-aminoclonidine (alpha 2) and [3H]-dihydroalprenolol (beta). Binding was of high affinity and the total number of binding sites (Bmax) were: alpha 1, 66.5 +/- 1.0 fmol/mg protein; alpha 2, 20.0 +/- 0.6 fmol/mg protein; beta, 10.2 +/- 0.3 fmol/mg protein. The data confirms the existence of adrenergic receptors in spinal cord and provides further evidence of the role of catecholaminergic neurons in regulating spinal cord physiology

Adrenergic receptors in rat spinal cord

Radioligand binding assays were used to demonstrate the presence of alpha 1, alpha 2 and beta receptors in rat spinal cord. Specific and saturable binding was exhibited for [3H]-WB 4101 (alpha 1), [3H]-aminoclonidine (alpha 2) and [3H]-dihydroalprenolol (beta). Binding was of high affinity and the total number of binding sites (Bmax) were: alpha 1, 66.5 +/- 1.0 fmol/mg protein; alpha 2, 20.0 +/- 0.6 fmol/mg protein; beta, 10.2 +/- 0.3 fmol/mg protein. The data confirms the existence of adrenergic receptors in spinal cord and provides further evidence of the role of catecholaminergic neurons in regulating spinal cord physiology.