Abstract:To determine whether the increased renal synthesis of thromboxane (Tx)A2 found in genetically hypertensive rats also occurred in rats with a sodium-dependent form of hypertension, the urinary excretion of 6-keto-prostaglandin F1 alpha (6KPGF1 alpha) and of TxB2 was measured by a sensitive and specific radioimmunoassay in hypertension-prone (SBH), -resistant (SBN) and unselected (SB) female rats of the Sabra strains. Rats of the three strains were studied before (9 weeks of age) and after five weeks of deoxycor… Show more
“…In another model of genetic hypertension, the Lyon model, 9 we described a higher TxA 2 renal production in young (5-and 9-week-old) but not in adult Lyon genetically hypertensive (LH) rats compared with their two control normotensive strains. 10 Such an alteration in TxA 2 biosynthesis seems to be specific to genetic hypertension, as it is not found in models that 12 rats. The antihypertensive effect of chronic Tx synthetase inhibition in SHR led to controversial observations.…”
“…In another model of genetic hypertension, the Lyon model, 9 we described a higher TxA 2 renal production in young (5-and 9-week-old) but not in adult Lyon genetically hypertensive (LH) rats compared with their two control normotensive strains. 10 Such an alteration in TxA 2 biosynthesis seems to be specific to genetic hypertension, as it is not found in models that 12 rats. The antihypertensive effect of chronic Tx synthetase inhibition in SHR led to controversial observations.…”
These indicate that circulating coupling factor 6 is elevated in human hypertension and modulated by salt intake presumably via reactive oxygen species.
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