Distinct mobilization of circulating CD271+ mesenchymal progenitors from hematopoietic progenitors during aging and after myocardial infarction.

The specific cell surface markers on mesenchymal stem/progenitor cells (MSCs) have been poorly defined in vivo, but in one recent study, an MSC subpopulation was directly isolated from a CD271-positive fraction of human bone marrow cells. The aim of this study was to identify circulating CD271(+) MSCs in human peripheral blood and investigate whether the cells are mobilized after acute myocardial infarction (MI). A flow cytometric analysis identified CD45(low/-)CD34(+)CD271(+) cells in adult human peripheral blood.

[A case of MALT lymphoma simultaneously associated with gastric and pulmonary involvement].

A 52-year-old man had been treated by hemodialysis because of IgA nephropathy since 1994. Gastric MALT lymphoma was diagnosed in January 2007. Radiation therapy was performed for 4 weeks (40Gy) and the response was complete remission (CR) by September 2007.

Cardiopulmonary arrest due to persistent coronary spasm in a young woman. Are we properly diagnosing vasospastic angina?

Coronary spasm is a risk factor for acute myocardial infarction and sudden cardiac death. This is a case of a young female patient with cardiopulmonary arrest induced by coronary spasm on arrival at our hospital. There has been no case that prolonged spontaneous attack was confirmed in multi-vessels.