Vanadium-dependent activation of glucose transport in adipocytes by catecholamines is not mediated <i>via</i> adrenoceptor stimulation or monoamine oxidase activity.

Since 100 nmol/L insulin increased the 2-DG uptake of isolated rat adipocytes by more than ten-fold (Figure 2 ), the stimulation reached after 45 min exposure to millimolar doses of these natural amines has to be definitely considered as substantial and highly significant, since the basal uptake was increased more than ten times.

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