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Biomedical subjects

G Thomas

Publications and source records attributed to G Thomas.

At least 865 records · Page 48Linked to original sources
PubMed1974

Prostaglandins, kinin and inflammation in the rat.

1 Prostaglandin E(1) and bradykinin exert synergistic effects on vascular permeability in rat skin and in rat paws. Prostaglandin E(2) is inactive in this respect.2 Prostaglandin F(2alpha) reduces the bradykinin response in rat skin but not in rat paws. It also markedly reduces the response of the skin to dextran, 5-hydroxytryptamine and histamine.3 Prostaglandin E(1) and dextran exert synergistic effects in rat skin when threshold doses of each agent are used.4 Rats genetically resistant to dextran fail to respond to intradermal dextran in the presence of prostaglandin E(1).

Animals↗
PubMed1973

Polyprenyl pyrophosphate-p-hydroxybenzoate polyprenyltransferase activity in mitochondria of broad-bean seeds and yeast.

Cell-free homogenates prepared from broad-bean seeds and yeast cells are capable of synthesizing 4-carboxy-2-polyprenylphenols from p-hydroxybenzoate and either isopentenyl pyrophosphate or protein-bound polyprenyl pyrophosphates (produced by incubating a Micrococcus lysodeikticus extract with isopentenyl pyrophosphate). The mitochondria contained all the polyprenyl pyrophosphate-p-hydroxybenzoate polyprenyltransferase activity; however, unlike the homogenates they could not synthesize a side chain from isopentenyl pyrophosphate and had to be provided with protein-bound polyprenyl pyrophosphates.

Benzoates↗