ileitis/arginine

We previously showed that intravenous total parenteral nutrition supplemented with nucleosides and nucleotides (NS/NT) promoted ulcer healing in rats with indomethacin-induced ileitis. The present study evaluated whether dietary NT supplementation would similarly affect ulcer healing in this model.

To understand the interactions between substance P and gut inflammation, changes in substance P levels were evaluated in a chronic model of ileitis in response to three anti-inflammatory agents with distinct mechanisms of action. The agents were the prostaglandin E(1) analogue misoprostol (30

Nitric oxide synthesis appears to be elevated in inflammatory bowel disease, but little is known about the contribution of nitric oxide to the pathophysiological process. To address this issue, we included the nitric oxide synthase inhibitor, NG-nitro-L-arginine methyl ester (L-NAME) in the drinking

As nitric oxide reduces gut epithelial permeability, we designed a study to determine if chronic nitric oxide synthase inhibition predisposes the gut to inflammation. Nitric oxide synthase (NOS) inhibitors were administered in the drinking water ad libitum, for seven days: aminoguanidine (10

We studied the effects of seven day treatment with the nitric oxide synthase (NOS) inhibitor NG-nitro-L-arginine (L-NAME), administered in the drinking water (100 micrograms/ml ad lib) of female guinea pigs. The effects of NOS inhibition were evaluated in naive animals and in guinea pigs with

In vitro electrophysiological studies of ileal circular muscle from rabbits with ricin-induced inflammation were performed to investigate whether altered neural control or myogenic activity contributes to previously described changes in in vivo myoelectric activity. Ricin treatment increased mean

We evaluated nitric oxide release in several models of intestinal inflammation through luminal nitrite concentrations. In anesthetized rabbits, piglets, and guinea pigs, luminal lavages were collected from loops of normal or injured small intestine. Lavages were analyzed spectrophotometrically for