Cationic lipids are used for delivering nucleic acids (lipoplexes) into cells for both therapeutic and biological applications. A better understanding of the identified key-steps, including endocytosis, endosomal escape and nuclear delivery is required for further developments to improve their efficacy. Here, we developed a labelling protocol using aminated nanoparticles as markers for plasmid ...

The existence of mutants at specific steps in a pathway is a valuable tool of functional genomics in an organism. Heterologous integration occurring during transformation with a selectable marker in Chlamydomonas (Chlamydomonas reinhardtii) has been used to generate an ordered mutant library. A strain, having a chimeric construct (pNia1::arylsulfatase gene) as a sensor of the Nia1 gene promoter...

BACKGROUND A recent study has shown that treatment of visceral leishmaniasis (VL) with the standard dose of 15 mg/kg/day of paromomycin sulphate (PM) for 21 days was not efficacious in patients in Sudan. We therefore decided to test the efficacy of paramomycin for a longer treatment duration (15 mg/kg/day for 28 days) and at the higher dose of 20 mg/kg/day for 21 days. METHODS This randomized...

Studies on Coding Region Determinant-Binding Protein (CRD-BP) and its orthologs have confirmed their functional role in mRNA stability and localization. CRD-BP is present in extremely low levels in normal adult tissues, but it is over-expressed in many types of aggressive human cancers and in neonatal tissues. Although the exact role of CRD-BP in tumour progression is unclear, cumulative eviden...

cholangiopathy and chronic diarrhea are relatively common manifestations of aids. cryptosporidium parvum infection is the most common cause of aids cholangiopathy globally. this is the first report of documented cryptosporidium parvum infection in a patient with aids in iran. the patient was a 39-year-old man from afghanistan with watery diarrhea, crampy periumbilical abdominal pain and 20 kg w...

doi:10.5152/tjh.2011.97 Visceral Leishmaniasis (kala-azar) is caused by the intracellular parasitic organism Leishmania donovani and is transmitted by the bite of an infected sandfly Phlebotomus argentipes. Clinical manifestations of advanced disease usually include constitutional symptoms, such as prolonged fever, anorexia, weight loss, and marked enlargement of the spleen and liver, with vary...

Hyper Immunoglobulin M (hyper IgM) is a rare immunodeficiency disorder first reported in 1961[1], characterized by recurrent infections with low levels of serum IgA, IgG and IgE and normal to high levels of serum IgM[1]. Onset of manifestation of X-linked HIGM occurs in the 1st or 2nd year of life with recurrent pyogenic infections especially of upper and lower respiratory tract and diarrhea in...