Yttrium-90 microspheres: a review of its emerging clinical indications.

Background: Many patients with liver malignancies are not candidates for resection, and systemic therapies are often not effective. Radioembolization (RE) is an alternative treatment for this group of patients. The safety and efficacy of RE with yttrium 90 (Y90) in patients with hepatocellular carcinoma (HCC) or metastatic colon cancer to the liver have been proven in several studies.

IRF-3, IRF-7, and IPS-1 promote host defense against acute human metapneumovirus infection in neonatal mice.

Human metapneumovirus (hMPV) is a leading cause of respiratory tract disease in children and is associated with acute bronchiolitis, pneumonia, and asthma exacerbations, yet the mechanisms by which the host immune response to hMPV is regulated are poorly understood. By using gene-deleted neonatal mice, we examined the contributions of the innate receptor signaling molecules interferon (IFN)-β promoter stimulator 1 (IPS-1), IFN regulatory factor (IRF) 3, and IRF7. Viral load in the lungs was markedly greater in IPS-1(-/-) > IRF3/7(-/-) > IRF3(-/-), but not IRF7(-/-), mice compared with wild-type mice.