A. Hashem

Publications9
h-index3
Citations48
Highly Influential Citations3
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Evaluation of Noninvasive Versus Invasive Techniques for the Diagnosis of Helicobacter pylori Infection
TLDR
Among the noninvasive methods for diagnosis of H. pylori infection, the 3 methods used in this study recorded promising results, including good sensitivity, which was the highest in the serum antibody test, whereas the stool-PCR test recorded excellent specificity.
‘Supermutators' found amongst highly levofloxacin-resistant E. coli isolates: a rapid protocol for the detection of mutation sites
TLDR
In this study, multiplex polymerase chain reaction (PCR) protocols were designed for high-throughput sequencing of the quinolone resistance determining regions of topoisomerases genes (gyrA, parC and parE) and/or the expression regulation systems of multidrug efflux pump AcrAB (acrRAB, marRAB and soxSR).
Chemical modification of Aspergillus niger β-glucosidase and its catalytic properties
TLDR
The present work has established the potential of glycosylation to enhance the catalytic properties of β-glucosidase enzyme, making this enzyme potentially feasible for biotechnological applications.
Bioinformatics determination of ETEC signature genes as potential targets for molecular diagnosis and reverse vaccinology
TLDR
This study focuses on enterotoxigenic E. coli (ETEC), one of the world's deadliest infectious agents, which also represents a serious public health in Egypt's rural areas and is integrated into multiple bioinformatics tools to determine horizontally transferred, pathotype-specific signature genes as targets for specific, high-throughput molecular diagnostic tools and reverse vaccinology screens.
Assessment of Antiviral Activity for Lamiaceae Family Members Against Rna and Dna Virus Models Using Cell -Culture: in Vitro Study
TLDR
The obtained results indicate a promising inhibitory activity of plant extracts against various virus models except for sage which showed no inhibitoryactivity against HSV-2 even though it showed reactivity against other virus models.
Microbial side-chain degradation of progesterone. I: Optimization of the transformation conditions
TLDR
The microbial side-chain degradation of progesterone for the production of C-19 androgens was investigated and Fusarium dimerum showed the greatest bioconversion efficiency and was selected for further studies.
COLONIZATION OF MULTI-DRUG RESISTANT (MDR) ACINETOBACTER BAUMANNII ISOLATED FROM TERTIARY HOSPITALS IN EGYPT AND THE POSSIBLE ROLE OF THE OUTER MEMBRANE PROTEIN (OMPA)
PAKISTAN JOURNAL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
Microbial side - Chain degradation of progesterone II. Application of different techniques for progesterone conversion by Fusarium dimerium
A local isolate of Fusarium dimerium, firstly reported to be able to degrade progesterone side chain to give certain C-19 androgenes derivatives, proved to perform this important conversion more…