Mother-to-infant vertical transmission of transfusion transmitted virus in South China.

A nested PCR was used to detect TTV DNA in serum from 490 mother-infant pairs to determine the rate of vertical transmission of TTV in Guangzhou City, P.R. China.

[Significance of plasma 8-iso-prostaglandin F2alpha level in acute myocardial ischemia and intervention effect of N-acetylcysteine: a study in rats].

Objective: To examine the correlation between 8-iso-prostaglandin F2alpha (8-iso-PGF2alpha) levels in the plasma and myocardial tissue of rats with myocardial ischemia and observe the intervention effect of N-acetylcysteine (NAC), for the purpose of assessing the value of 8-iso-PGF2alpha in estimating the extent of free radical damage and implementing possible interventions.

Methods: Forty-five Wistar rats were divided into ischemia, ischemia+NAC and control groups, and in the former 2 groups, acute myocardial ischemia models were produced by pituitrin. Elevated ST segment in ECG served as the indicator for myocardial ischemia.