No abstract

A si ' " I-I }i s; I E u fi ;\ Summary Experimental amnio-allantoic fluid (AAF) exchange has been shQwn to prevent intestinal damage in the chicken embryo gastroschisis model. AAF contains both urinary and gastrointestinal waste products (UWP and GIWP). An experimental study was performed to find the waste products responsible for this intestinal damage. Gastroschisis was created in 20 chick embryos. Half were treated with AAF exchange, the other half were not treated. AAF sampies were obtained for biochemical determination of urea nitrogen and creatinine as UWP, bile acids and bilirubin as GIWP at the end of the incubation. Intestines were evaluated by light microscopy.While GIWP (Bile salts and bilirubin) were significantly removed from AAF by exchange, the levels of UWP (urea nitrogen and creatinine) were unaffected. Intestinal wall thickness was less in the exchange group compared to the untreated group.The unchanged levels of UWP after AAF exchange may be attributed to their relatively rapid production compared to GIWP. Dilution of GIWPs by AAF exchange results in prevention of the intestinal damage in gastroschisis.

No abstract

Percutaneous transluminal coronary angioplasty (PTCA) has been recognized as a reliable treatment procedure for acute reversible ischemia and reperfusion. Ischemic reperfusion cycle in PTCA leads to the systemic inflammation and extensive tissue injury by the production of reactive oxygen species including nitric oxide (NO) radicals. In patients with coronary artery disease, undergoing PTCA, the effects of trimetazidine (TMZ), a piperazine-derivative anti-anginal drug, were studied on several indirect markers of systemic inflammatory response: tumor necrosis factor-α (TNF-α ), C-reactive protein (CRP) and NO products (nitrite and nitrate). Patients (n = 11 each group) were untreated or pre-treated with TMZ (20 mg per orally three times a day), begun three days prior to PTCA, and marker levels were measured before the start of TMZ therapy (baseline), just before PTCA (0 hr), and 4, 24, and 48 hrs after PTCA. The baseline levels of markers were not significantly different between the untreated and pre-treated patients. In contrast, all parameters were lower in the TMZtreated group than those in the matched control group in the pre-and post-angioplasty periods. Interestingly, in the TMZ group, CRP and nitrite levels were significantly lower than in the control group at each time point of the pre-and post-angioplasty periods, but the TNF-α levels were significantly decreased only in the post-angioplasty period. Preprocedural treatment with oral TMZ for three days significantly suppressed the elevation of inflammatory markers before and shortly after PTCA. We suggest the usefulness of TMZ in preventing inflammatory cardiovascular events after PTCA.trimetazidine; percutaneous transluminal coronary angioplasty; C-reactive protein; nitric oxide; tumor necrosis factor-α .

In the present study, it was observed that I.V administered iron in 20 and 100 mg doses did not cause additional deteriorating effect on oxidant stress and EDEF was even improved by I.V iron.