Mohammad Ramezani
Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
[ 1 ] - Umbelliprenin induced both anti-inflammatory and regulatory cytokines in C57/BL6 mice
Objective(s): Umbelliprenin is a prenyloxy-coumarin with pharmacologically polyvalent activity. Several studies have shown its anti-inflammatory, anti-tumor, antioxidant, and antigenotoxic activity, and other functions. However, the exact mechanism of action of this compound on the immune response has not yet been shown. Here, we investigated umbelliprenin effects on the predominance of Th1 and...
[ 2 ] - Alkyl cross-linked low molecular weight polypropyleneimine dendrimers as efficient gene delivery vectors
Objective(s): First, 10-bromodecanoic acid was covalently attached to all available surface primary amines of PPI G2 and G3 to increase their lipophilicity. In the subsequent step, PPIs were conjugated to the alkylcarboxylate groups of alkylcarboxylate-PPI derivatives to increase the number of surface primary amines. Physicochemical properties of modified PPIs were determined. Transfection expe...
[ 3 ] - Screening and identification of SUMP-proteins in sub-acute treatment with diazinon
Objective(s):Small ubiquitin-like modifiers (SUMOs) are a family of ubiquitin-related, proteins that are involved in a wide variety of signaling pathways. SUMOylation, as a vital post translational modification, regulate protein function in manycellular processes. Diazinon (DZN), an organophosphate insecticide, causses oxidative stress and subsequently programmed cell death in different tissues...
[ 4 ] - The Effect of Linear PEI on Characteristics and Transfection Efficiency of PEI-Based Cationic Nanoliposomes
The development of efficient and safe carrier system to transfer DNA into cells is essential in non-viral gene therapy. The aim of the present study was to evaluate the effect of linear polyetheneimine (lPEI) (2500 Da) on the physicochemical and biological properties of lipopolyplexes constructed from liposomes and lPEI. Materials and Methods Different lipopolymers were synthesized from lPEI ...
[ 5 ] - Inhibition of Helicobacter pylori Growth in vitro by Saffron (Crocus sativus L.)
Objective(s) Anti-Helicobacter pylori effects of saffron (Crocus sativus L., Iridacea) and its major constituents, crocin and safranal, were evaluated. Materials and Methods Macerated aqueous and methanol extracts tested against 45 clinical isolates of Helicobacter pylori, using paper disc diffusion method (DDM) on modified egg yolk emulsion agar (EYE agar). Four antibiotics also tested agai...
[ 6 ] - Modified Polyethylenimine: Self Assemble Nanoparticle Forming Polymer for pDNA Delivery
Objective Polyethylenimine (PEI), a readily available synthetic polycation which has high transfection efficiency owing to its buffering capacity was introduced for transfection a few years ago. But it has been reported that PEI is cytotoxic in many cell lines. In this study, in order to enhance the transfection efficiency of 10 kDa PEI and reduce its toxicity, hydrophobic residues were grafte...
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