Traumatic dental injuries and related factors among sixth grade schoolchildren in four Palestinian towns.

Background: Traumatic dental injuries (TDI) are recognized as an important dental public health issue among children. The West Bank, a part of the Palestinian Authority, is in immediate neighborhood to Israel. There are inadequate epidemiologic data among the Palestinian people, on dental health issues.

Simultaneous donor marrow cell transplantation with reduced intensity conditioning prevents tracheal allograft obliteration in a bronchiolitis obliterans murine model.

Study Objectives: Prolonged survival of transplanted kidney or liver allografts has been associated with prolonged chimerism resulting from donor-origin leukocytes carried within the allograft parenchyma. The present study, performed in a murine model, examined whether simultaneous administration of donor bone marrow cells after reduced intensity conditioning allows acceptance of heterotopic tracheal allografts and prevents the formation of the airway fibroproliferative lesion, which mimics bronchiolitis obliterans (BO).

Methods: Allogeneic tracheal allografts from C57BL/6 mice were grafted subcutaneously into BALB/c mice (n = 6) [day 0].