Stjärne: The present review puts the emphasis on two important
developments: the discovery that individual postganglionic sympathetic
neurons may secrete multiple transmitter substances from different
classes of vesicles and by different mechanisms, and the introduction of
new techniques which may permit for the first time direct impulse by
impulse analysis of transmitter secretion in individual sympathetic
nerve varicosities. Illes: Exogenous and endogen opioid peptides
elicit a number of effects in the organism, usually by modifying the
function of transmitter and hormone systems, for example, activation of
multiple opioid receptors. The effects of opioids on transmitter and
hormone release have frequently been reviewed. This review gives a
detailed overview on the involvement of multiple opioid receptors in
these processes. Rothstein: This article gives an overview of the
exchange in acidification and transepithelial salt and water transfer in
nonepithelial cells. Delineating the exchanger's most important, common
features, and concentrating particularly on its role in cell pH and
volume regulation.