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Biocompatible and biodegradable polyelectrolyte complex consisting of carboxylmethyl cellulose (CMC) and chitosan (CHI) were studied as a template for calcium phosphate biomimetic mineralization. CMC/CHI/calcium phosphate hybrids were prepared using different concentrations of simulated body fluid (2, 5 and 10 × SBF) for producing hybrids with different(More)
Despite the appearance of new oral antiviral drugs, pegylated interferon (PEG-IFN)/RBV may remain the standard of care therapy for some time, and several viral and host factors are reported to be correlated with therapeutic effects. This study aimed to reveal the independent variables associated with failure of sustained virological response (SVR) to(More)
INTRODUCTION This study aimed to assess the therapeutic efficacy of traditional Chinese acupuncture in the treatment of persistent primary nocturnal enuresis (PNE). METHODS Fifty children and adolescents suffering from persistent PNE were recruited from the Pediatrics and Urology Outpatient Clinic of Zagazig University Hospital during the year 2010. They(More)
C-Phycocyanin (C-Pc) is one of the major biliprotein pigments of unicellular cyanbacterium of Spirulina platenesis, it has nutritional, medicinal, and hepatoprotectant application. The growth and multiplication of human hepatoma cell lines (HepG2) under the effect of different concentrations of C-PC (0.8, 1.75, 3.5 and 7.0 microg/ml) against untreated cells(More)
BACKGROUND The oral delivery of proteins and peptide drugs is considered a major challenge. These types of therapeutics are readily degraded, if taken orally, due to the harsh high acidity of stomach and enzymatic attack in the upper small intestinal tract. METHODS Water-soluble copolymers of sodium acrylate (AAs) grafted onto carboxymethyl cellulose(More)
BACKGROUND Egypt has one of the highest (16-8%) prevalence rates of HCV infection in the world. Approximately 90% of Egyptian HCV isolates belong to a single subtype (4a), which responds less successfully to interferon therapy than other subtypes. Studies comparing the efficacy and safety of PEGIFN alfa-2a and PEGIFN alfa-2b in treatment-naive HCV-infected(More)
Se presentan los resultados obtenidos en un estudio sobre la toxicidad de los extractos etanólicos de Pleurotus ostreatus, Pleurotus pulmonarius y Paxillus involutus sobre Artemia salina. P. involutus presentó la mayor toxicidad (CL50 = 94,4 µg/ml), que fue similar a la observada con el patrón de dicromato de potasio. P. pulmonarius y P. ostreatus no(More)
Multiphase hybrid materials were synthesized using carboxymethyl cellulose (CMC) as bioactive polymer, silica gel as matrix assisted networks and calcium phosphate as inorganic mineral phase. These hybrids were investigated with infrared spectroscopy, X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy and transmission(More)
A novel adsorbent was prepared via crosslinking graft copolymerization of 2-(dimethylamino) ethyl methacrylate (DMAEMA) onto carboxymethyl cellulose (CMC) backbone. Ethylene glycol dimethacrylate and potassium persulphate were used as crosslinker and initiator, respectively. CMC-g-PDMAEMA hydrogel was used to remove methyl orange (MO) from aqueous(More)
In this paper, we propose fractional sequential sensing (FSS) as a novel cooperative sensing scheme for cognitive radio networks. FSS compromises a tradeoff between sensing accuracy and efficiency by formulating an optimization problem whose solution identifies FSS sensing parameters. These parameters include the sensing period and channels allocated for(More)