Is free prostate-specific antigen helpful in the differential diagnosis of benign hyperplasia and cancer of the prostate?
High t-PSA levels are very good indicators for the presence of PC. There is still concern for improving the differentiation between BPH and PC, when an intermediate or low value (<or = 95% specificity) is observed. The determination of Q is only useful in this range and is helpful for the clinician's decision whether to apply or avoid biopsy.
This study demonstrated that glutamine up-regulates amino acid transport during I/R in human intestinal epithelial cells, possibly resulting in increased intracellular glutathione and DNA synthesis.