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carol yousry

Jiayin Song, Brett F Carver, Carol Powers, Liuling Yan, Jaroslav Klápště, Yousry A El-Kassaby, Charles Chen
Crop improvement is a long-term, expensive institutional endeavor. Genomic selection (GS), which uses single nucleotide polymorphism (SNP) information to estimate genomic breeding values, has proven efficient to increasing genetic gain by accelerating the breeding process in animal breeding programs. As for crop improvement, with few exceptions, GS applicability remains in the evaluation of algorithm performance. In this study, we examined factors related to GS applicability in line development stage for grain yield using a hard red winter wheat (Triticum aestivum L...
2017: Molecular Breeding: New Strategies in Plant Improvement
Carol Yousry, Seham A Elkheshen, Hanan M El-Laithy, Tamer Essam, Rania H Fahmy
Ocular topically applied Vancomycin (VCM) suffers poor bioavailability due to its high molecular weight and hydrophilicity. In the present investigation, VCM-loaded polymeric nanoparticles (PNPs) were developed aiming to enhance its ocular bioavailability through prolonging its release pattern and ophthalmic residence. PNPs were prepared utilizing double emulsion (W/O/O), solvent evaporation technique. 2(3)×4(1) full factorial design was applied to evaluate individual and combined influences of polymer type, Eudragit® RS100, sonication time, and Span®80 concentration on PNPs particle size, encapsulation efficiency, and zeta potential...
March 30, 2017: European Journal of Pharmaceutical Sciences
Carol Yousry, Rania Hassan Fahmy, Tamer Essam, Hanan M El-Laithy, Seham A Elkheshen
CONTEXT: A microbiological multidistrict-based survey from different Egyptian governorates was conducted to determine the most prevalent causative agents of ocular infections in the Egyptian population. Antibiotic sensitivity testing was then performed to identify the most potent antimicrobial agent. Vancomycin (VCM) proved the highest activity against gram-positive Staphylococcus bacteria, which are the most commonly isolated causative agents of ocular infection. However, topically applied VCM suffers from poor ocular bioavailability because of its high molecular weight and hydrophilicity...
November 2016: Drug Development and Industrial Pharmacy
Cherdsak Liewlaksaneeyanawin, Carol E Ritland, Yousry A El-Kassaby, Kermit Ritland
Microsatellites, or simple sequence repeats (SSRs), are usually regarded as the "markers of choice" in population genetics research because they exhibit high variability. The development cost of these markers is usually high. In addition, microsatellite primers developed for one species often do not cross-amplify in related species, requiring separate development for each species. However, microsatellites found in expressed sequence tags (ESTs) might better cross-amplify as they reside in or near conserved coding DNA...
July 2004: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
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