Ethanol retains its ability to modify endogenous opiate system in aged rats.

The effect of chronic ethanol administration (8% in the drinking water for 28 days) on opiate receptor function at striatal level was studied in adult (3 months) and aged (24 months) male Sprague Dawley rats. The treatment produces supersensitivity of striatal delta opiate receptors which may be ascribed to an inhibitory effect of ethanol on endogenous opiate release. In contrast the affinity of mu receptors is decreased.

[Role of echocardiography in the diagnosis of cerebral ischemic attacks of embolic origin].

An echocardiographic study of 50 patients with cerebral infarction confirm the importance of this technique in the diagnosis of cerebral ischaemia originating in a cardiac embolism, an importance that has already been underlined by others. The particular value of this technique in young patients in relation to possible treatment is also pointed out.

[Acute hydrocephalus in subarachnoid hemorrhage].

The AA. carry out a study on correlation among acute hydrocephalus, cerebral ischemia and hyponatremia in 70 patients with ESA.