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Biomedical subjects

E N Wardle

Publications and source records attributed to E N Wardle.

At least 19 recordsLinked to original sources
PubMed1979

Brain adenylate cyclase activation in the jaundiced rat.

Adenylate cyclase responses of brain cortex and neostriatum to noradrenaline and dopamine are increased in rats with jaundice in proportion to its severity. In comparing the situation with uraemia, the relevance of phenols has to be considered.

Adenylyl Cyclases↗
PubMed1978

Effect of unconjugated and conjugated phenol and uraemia on the synthesis of adenosine 3' :5' -cyclic monophosphate in rat brain homogenates.

1. The effects of phenol and phenyl glucuronide on the responses of normal rat brain adenyl cyclase to noradrenaline and dopamine have been investigated. Neurotransmitter responses have also been examined in brains from uraemic and normal rats. 2. A depressive effect of phenol on the adenosine 3' :5' -cyclic monophosphate response of the neostriatum to dopamine was shown to be completely abolished if the toxin was present in the conjugated form; the response of the cortex to noradrenaline was stimulated by the presence of phenyl glucuronide, even though the unconjugated form had no effect. 3. The uraemic state in the rat also resulted in a depression of the neostriatum response to dopamine, yet an enhancement of the cortical response to noradrenaline. 4. The action of phenols of the brain is relevant to hepatic and uraemic coma.

Animals↗
PubMed1978

How toxic are phenols?

How toxic are phenols? The phenolic acids cannot all be detoxified. Phenyl-glucuronide, although water soluble, can still disturb cell membrane transport mechanisms. Apprecialbe amounts of toxic-free phenols form a lipid pool in the uremic patient. These findings are also relevant to hepatic coma.

Adenosine Triphosphatases↗