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E L Forker

Publications and source records attributed to E L Forker.

46 records · Page 3Linked to original sources
PubMed1969

The effect of estrogen on bile formation in the rat.

Female rats given large doses of estrone developed increased permeability of the biliary tree as determined by an increase in the biliary clearances of sucrose and mannitol. Spontaneous bile flow and the choleretic response to dehydrocholate declined. Estrone reduced the clearance of sulfobromophthalein (BSP) at low plasma concentrations as well as the absolute rate of BSP excretion when plasma levels were above those required to saturate active transport. The findings are consistent with a postulate that estrogen cholestasis may involve enhanced diffusion of materials from bile to blood in addition to inhibition of active transport in the opposite direction.

Animals↗
PubMed1967

Two sites of bile formation as determined by mannitol and erythritol clearance in the guinea pig.

If water and inert solutes are assumed to pass from blood to bile through a fixed population of membrane pores, the changes in clearance produced by dehydrocholate suggest that osmotic filtration rather than diffusion is the predominant mode of transfer for mannitol and erythritol. Bile produced in the canaliculi is modified in the interlobular ducts by the action of secretin. If distal fluid transfer is an important determinant of the choleresis evoked by dehydrocholate, the mechanism appears to effect a net secretion or reabsorption of fluid at a rate roughly proportional to the rate of flow in the canaliculi.

Alcohols↗