Cardiac MRI for assessment of myocardial perfusion: current status and future perspectives.

Cardiac magnetic resonance imaging (MRI) has recently been applied successfully to the assessment of myocardial perfusion. Cardiac MRI offers potential advantages over radioisotopic techniques because it provides superior spatial resolution, does not use ionizing radiation, and has no imaging orientation constraints. Current MRI perfusion approaches measure the alteration of regional myocardial magnetic properties after the intravenous injection of contrast agents.

Miliary tuberculosis in a patient with Epstein-Barr virus-associated angioimmunoblastic lymphadenopathy.

A 74-year-old woman developed angioimmunoblastic lymphadenopathy (AILD) with involvement of intra-abdominal and retroperitoneal lymph nodes. Southern blot analysis showed germline configuration of the JH genes and an oligoclonal pattern of the TcR beta genes. The immunoblasts were of B-cell phenotype and often expressed the CD30 antigen and the latent membrane protein 1 (LMP1) oncogene.

Translational status of proenkephalin mRNA in the rat reproductive system.

The mRNA for the opioid peptide precursor proenkephalin is widely distributed throughout the male and female reproductive systems of rodents. In the present studies, the concentrations of proenkephalin-derived peptides in selected reproductive tissues of the rat have been determined. When compared with previously characterized tissues such as brain, the peptide contents in reproductive tissues were unexpectedly low relative to the abundance of proenkephalin mRNA.