User profiles for Hamdallah H. Zedan

Hamdallah Hafez Zedan

Department of Microbiology and Immunology, Faculty of Pharmacy, Cairo University
Verified email at pharma.cu.edu.eg
Cited by 648

Fluoroquinolone resistant mechanisms in methicillin-resistant Staphylococcus aureus clinical isolates in Cairo, Egypt

RA Hashem, AS Yassin, HH Zedan, MA Amin - The Journal of Infection in …, 2013 - jidc.org
Introduction: Methicillin-resistant Staphylococcus aureus (MRSA) is a persistent problem in
community and health care settings. Fluoroquinolones are among the drugs of choice used …

Advanced approaches for endotoxin detection and removal from snake antivenoms

…, M Fawzy, E Diab, ME Basuony, AS Yassin, HH Zedan… - Toxicon, 2023 - Elsevier
A comprehensive assessment of the literature on strategies for the detection and removing
endotoxin from biotechnological preparations was conducted. This study highlighted the brief …

An efficient method for endotoxin removal from snake antivenoms

…, AS Yassin, MA Amin, Y Alhamhoom, HH Zedan - Chromatographia, 2020 - Springer
Parenterally administered snake antivenom immunoglobulins are the only specific
treatment for envenoming by snakebites. Endotoxin removal is a necessary part of good …

Microbial Transformation of Lucanthone by Growing Cultures, Washed Mycelia and Non-germinating Spores of Fungi from the Aspergillus Group

HH Zedan, OM El-Tayeb, MN Walash - Microbiology, 1983 - microbiologyresearch.org
Whole broth cultures, washed mycelia and non-germinating spores of 13 aspergilli scored
from among 91 moulds isolated from soil and air transformed lucanthone (I) into three to five …

A Validation study of the Limulus Amebocyte Lysate test as an end-product endotoxin test for Polyvalent Horse Snake Antivenom

…, MR Diab, AS Yassin, MA Amin, HH Zedan - PDA journal of …, 2019 - journal.pda.org
The only definitive management of snake envenoming is the use of snake antivenom.
Endotoxin contamination is a serious threat to the safe use of parenteral drugs. A greater …

Quality Control Testing for Tracking Endotoxin-Producing Gram-Negative Bacteria during the Preparation of Polyvalent Snake Antivenom Immunoglobulin

…, MR Diab, AS Yassin, MA Amin, HH Zedan - PDA Journal of …, 2015 - journal.pda.org
Snake bites represent a serious public health problem, particularly in rural areas worldwide.
Antitoxic sera preparations are antibodies from immunized animals and are considered to …

A novel PCR method targeting staphostatin genes differentiates Staphylococcus aureus from Staphylococcus epidermidis in clinical isolates and nasal microbiome …

MZ Ghattas, MT ElRakaiby, RK Aziz, HH Zedan - 2019 - researchsquare.com
Staphylococcus aureus is a pathogen associated with community-acquired and healthcare-associated
infections, and is known for rapid acquisition of resistance to multiple antibiotics. …

A Study on Multidrug-Resistant Escherichia coli Clinical Isolates from Different Hospitals in Greater Cairo

R Elshimy, H Zedan, TH Elmorsy… - Microbial Drug …, 2021 - liebertpub.com
The biological fitness cost of antibiotic resistance is a key parameter in determining the rate
of appearance and spread of antibiotic-resistant bacteria in Egypt. Our study aimed to …

Prevalence and In Vivo Assessment of Virulence in Shiga Toxin-Producing Escherichia coli Clinical Isolates from Greater Cairo Area

R Elshimy, H Zedan, TH Elmorsy… - Microbial Drug …, 2023 - liebertpub.com
Background: Shiga toxin-producing Escherichia coli (STEC) has been identified as an
important etiologic agent of human disease in Egypt. Aims: To investigate the occurrence and …

[HTML][HTML] Proceedings of the 16th Annual UT-KBRIN Bioinformatics Summit 2016: proceedings: Burns, TN, USA. April 21-23, 2017

…, MZ Ghattas, M Elrakaiby, RK Aziz, HH Zedan… - BMC Proceedings, 2017 - Springer
Background A middle-aged African American male with a history of HIV/AIDS was admitted
to Nashville General Hospital at Meharry (NGHM), with severe diarrhea, nausea and vomiting…