background: hemophilia b is an x-linked hereditary disorder of blood coagulation system which is caused by factor ix (fix) deficiency. factor ix is a plasma glycoprotein that participates in the coagulation process leading to the generation of fibrin. replacement of factor ix with plasma-derived or recombinant factor ix is the conventional treatment for hemophilia b to raise the factor ix level...

Human epithelial amnion cells infected in primary culture with simian virus 40 transform to give rise to two morphologically different cells (T and R). R cell foci appear later, after infection, and the proportion of R to T cell foci increases when older amnion cultures are in fected. T cells may be easily subcultured by routine trypsinization methods. The more slowly dividing R cells are very ...

Background: The Vagina is a composite structure formed partly from the mullerian duct and partly from urogential sinus. Most of the patients with mullerian agenesis have small rudimentary uterus without any endometrial cavity, 7% 8% may have functioning uterus. Case: A 15 years old girl admitted with primary amenorrhea, cyclical abdominal pain, hematometra and complete vaginal agenesis. Surgica...

Fetal fibronectin (fFN) in cervical and vaginal secretions has been used as a predictor of preterm delivery. Here, we clarified the pathological function of fFN on cell type-specific matrix metalloproteinases (MMPs) and prostaglandin synthesis in fetal membranes. Treatment of amnion mesenchymal cells with fFN resulted in dramatic increases in MMP-1 and MMP-9 mRNA and enzymatic activity as well ...

The mesenchymal stem cells (MSCs), which are derived from the mesoderm, are considered as a readily available source for tissue engineering. They have multipotent differentiation capacity and can be differentiated into various cell types. Many studies have demonstrated that the MSCs identified from amniotic membrane (AM-MSCs) and amniotic fluid (AF-MSCs) are shows advantages for many reasons, i...

Premature rupture of the membranes (= amniorrhea) occurs in 1% to 2% of all pregnancies and 30% of preterm births (earlier than 37 weeks) are due to the rupture of membranes.The rupture occurs if an imbalance between the resilience of the amnion and the pressure administrated develops; this can have different reasons. An intact amnion with sufficient amniotic fluid is not only essential for the...

Vesicular stomatitis virus forms discrete, microscopic plaques in stationary cultures of the WISH amnion cell line. Microplaque formation is rapid, reproducible, and easily quantitated, occurs at temperatures ranging from 33 to 40 degrees C, and does not require a semisolid overlay. WISH cells, however, are less sensitive to vesicular stomatitis virus than are chicken embryo, 3T6, or Vero cells...

The use of amniotic membrane (or amnion) for transplantation as graft in ocular surface reconstruction is reviewed. This technique has become widespread because of the availability of the amnion, convenience and ease of use, and high and reproducible success rates. The mechanisms of action of the transplantation are varied and include the prolongation and clonogenic maintenance of epithelial pr...

Acute and chronic lung injury represents a major and growing global burden of disease. For many of these lung diseases, the damage is irreparable, exhausting the host's ability to regenerate new lung, and current therapies are simply supportive rather than restorative. Cell-based therapies offer the promise of tissue regeneration for many organs. In this paper, we examine the potential applicat...