Mast cell progenitors arise in bone marrow and then migrate to peripheral tissues where they mature. It is presumed that integrin receptors are involved in their migration and homing. In the present study, the expression of various integrin subunits was investigated in three systems of adherent and nonadherent mast cells. Mesentery mast cells, freshly isolated bone marrow-derived mast cells (BM...

The cranial suspensory ligament is located on the border of the cranial (mesonephric) mesentery in adult female mammals, which runs between the cranial pole of the internal genitalia and the dorsal abdominal wall. Absence of the cranial suspensory ligament in male mammals depends upon exposure of its primordium to fetal testicular androgens and is a prerequisite for testis descent. Female rats ...

An 81-year-old Caucasian woman presented to the emergency department (ED) complaining of right groin pain of one month’s duration. She was able to bear weight but was finding it increasingly difficult to ambulate. She described a vague history of falling, prompting a prior negative work-up for hip fracture. In the ED, she was noted to be kyphotic, but exhibited no signs of trauma. Exam revealed...

Nitric oxide (NO), in addition to being a potent vasodilator, also prevents leukocyte adhesion in the microvasculature. Based on the antiadhesive properties of NO and work suggesting that NO is transported by proteins in the circulation, we tested the possibility that inhaled NO could impart antiadhesive effects in peripheral microvessels. We also determined the underlying mechanisms of actions...

Interactions of rat ascites hepatoma cells with primary cultured layers of rat mesentery-derived cells were studied. The mesentery-derived cells were isolated from rat mesentery and cultured in Eagle's minimum essential medium with a 2-fold concentration of amino acids and vitamins supplemented with 10% calf serum. The primary cultured cells, consisting mainly of mesothelial cells in polygonal ...