Lentiviruses exist in vivo as a population of related, nonidentical genotypes, commonly referred to as quasispecies. The quasispecies structure is characteristic of complex adaptive systems and contributes to the high rate of evolution in lentiviruses that confounds efforts to develop effective vaccines and antiviral therapies. Here, we describe analyses of genetic data from longitudinal studie...

Pancreatic cancer has remained refractory to treatment. In large part, this results from the lack of an animal model that mimics pancreatic cancer in man. We describe a novel experimental model of pancreatic cancer that shares the genetic background, histologic features and natural history of human mixed acinar-ductal carcinoma. Adult wild-type mice received an injection into the pancreatic duc...

The human immunodeficiency virus (HIV) is lentivirus (subgroup of retrovirus) which causes HIV infection and it acquired immunodeficiency syndrome (AIDS). HIV infection leads to low levels of CD4+T cells through number of mechanisms [1]. Our purpose is to review educative HIV prevention and control as Millennium Development Goal (MDG) and WHO's operational goal. In 2000, when ...

Abstract Background Glioma is a complex cancer with high morbidity and mortality. Bone marrow mesenchymal stem cells (BMSCs) have shown promise as an excellent cell/drug delivery vehicle for gene-targeted therapy; however, maintaining genetic stability biological activity remains difficult. Furthermore, whether BMSCs support or inhibit tumor growth debated. This study investigated traditional C...