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Biomedical subjects

M Eisner

Publications and source records attributed to M Eisner.

At least 19 recordsLinked to original sources

Chemical attraction of kleptoparasitic flies to heteropteran insects caught by orb-weaving spiders.

Insects of the heteropteran families Pentatomidae (stink bugs) and Coreidae (squash bugs), when being eaten by the orb-weaving spider Nephila clavipes, attract flies of the family Milichiidae. The flies aggregate on the bugs and, as kleptoparasites, share in the spider's meal. Stink bugs and squash bugs typically eject defensive sprays when attacked; they do so when caught by Nephila, but the spray only minimally affects the spider. Evidence is presented indicating that it is the spray of the bugs that attracts milichiids to the spider's catch.

Aldehydes

Endoscopic lithotripsy of biliary stones.

Historically, gallstone therapy has been surgery. Gastrointestinal endoscopists and radiologists are now becoming increasingly active in the definitive management of both cholelithiasis and choledocholithiasis. Today, for uncomplicated cholelithiasis and for many cases of choledocholithiasis in patients without increased surgical risk, biliary surgery remains the recommended treatment by internists and surgeons alike. However, with an increased battery of available therapeutic modalities, management decisions and strategies are becoming more complex and the treatment of biliary stone disease in the future will be different than it was in the past.

Cholelithiasis

[On the mode of action of difenoxin (R 15 403). Part 2: Studies on the perfused isolated colonic loop of the rat (author's transl)].

The effect of 1-(3-cyano-3,3-diphenylpropyl)-4-phenyl-isonipecotinic acid hydrochloride (difenoxin, R 15 403), a new antidiarrhoic agent, was studied in vivo in rats with an isolated colonic loop. Difenoxin had no effect on transport or absorption of fluid during perfusion experiments. When given i.p. it inhibited the motility of the coecum but not that of the colon. Difenoxin has apparently no effect on normal rat colon, although an effect may have been masked by the wide variation of parameters measured under identical conditions.

Animals