Possible Interaction: Methionine and Propranolol

“ Propranolol at 1 × 10 −4 M inhibited the isoproterenol stimulation of each population.”

“In the presence of propranolol , phentolamine ( 10−5 M ) abolished the contractile effect of DA.It is concluded that DA has both direct and indirect actions on guinea-pig isolated tracheal smooth muscle.”

“The results indicated that 10−5 M of NA inhibits the chemotaxis of lymphocytes from both the immunocompetent organs studied, and that this effect is blocked by either propranolol (10−6 M) or phentolamine (10−5 M).”

“The inhibitory action of 10 mM D-glucose, 10 mM L-methionine , and 5 mM L-tryptophan was blocked by propranolol on the jejunum and by phenoxybenzamine on the ileum.”

“Maximum hyperpolarization is achieved with 10−5 M noradrenaline or 10−6 M adrenaline and is blocked by propranolol (10−6 M) but not phentolamine (10−5 M).”

“Isoproterenol (10−7 m) also stimulated 3-O-methylglucose transport, and this effect was completely blocked by 10−5 m propranolol.”

“ Propranolol showed anticonvulsant effect on normal and reserpine treated rats by MES test, but showed dose related lowering of MET.”

“The α and β adrenergic blocking agents (phentolamine and propranolol ) at 10 −5 M acted to antagonize cyclic AMP accumulation in response to NE in all brain regions, while at 10 −6 M the α blocker was ineffective in the cerebral cortex and less effective in the medial hypothalamus.”