Naser Jarrar

Naser Jarrar
An-Najah National University · Department of Biology

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15
Publications
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Publications

Publications (15)
Article
Cysticercus tenuicollis is the metacestode of canine tapeworm Taenia hydatigena , which has been reported in domestic and wild ruminants and is causing veterinary and economic losses in the meat industry. This study was conducted to determine the sequence variation in the mitochondrial cytochrome c oxidase subunit 1 ( coxl ) gene in 20 isolates of...
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This study aimed to evaluate the relation between the phenotypic antibiotic susceptibility patterns and the antibiotic resistance genes and to investigate the prevalence of macrolide, lincosamides, streptogramin, aminoglycoside and tetra cycline resistance genes among MRSA isolates. A total of 55 clinical MRSA isolates were included in this study,...
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Antibiotic resistance of uropathogenic E. coli (UPEC) in urinary tract infections (UTIs) is increasing worldwide. A total of 41 UPEC isolates were isolated from urine samples from hospitalized patients with UTI during the period of March and June 2011 from three hospitals in the Northern districts of the West Bank, Palestine. Resistance rates were:...
Article
Background Community acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) is a major global problem. This study attempted to investigate the prevalence of nasal carriage of Staphylococcus aureus and methicillin-resistant Staphylococcus aureus (MRSA) strains among 360 healthy university students at An-Najah National University, Palestine....
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Aims: To investigate the presence of the staphylococcal enterotoxin genes seg, seh and sei among clinical and nasal isolates. Place and Duration of Study: Department of Biology and Biotechnology, An-Najah N. University, Palestine, in 2011. Methodology: A total 124 S. aureus isolates were collected, forty three were nasal and 81 were clinical isolat...
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Varthemia iphionoides is indigenous to Palestine, where it is traditionally being used for treatment of gastrointestinal disorders. The aim of this paper was to provide pharmacological validation to this medicinal use. Water and ethanol extracts of Varthemia iphionoides were studied on isolated rabbit ileum for spasmolytic action. These extracts sh...
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Objective: To determine the antimicrobial activity of rosemary (Rosmarinus officinalis L.) and to investigate the synergistic effects of this extract combined with ceforuxime against methicillin-resistant Staphylococcus aureus (MRSA). Methods: The inhibitory and bactericidal activities of rosemary ethanol extract, alone and in combination with cefu...
Article
To assess the clinical utility of the crude ethanolic extract of the leaves of Varthemia iphionoides (Compositae), minimal inhibitory concentrations eJ'v1Ies) were determined using agar dilution technique. Accordingly, The MICs of of this plant extract ranged from 0.0313-1 mg/ml for three clinical Staphylacaccus aureus strains and ATCC strains of B...
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A total of 68 Staphylococcus aureus strains isolated from different human clinical samples in the North of Palestine were examined to detect staphylococcal enterotoxin (SE) genes A (sea), B (seb), C (sec), D (sed) and (see). Of the total isolates examined, 41.2% (28/68) were enterotoxigenic S. aureus. Twelve strains (42.9%) of enterotoxigenic S. au...
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This report presents the prevalence of Palestinian isolates of methicillin-resistant Staphylococcus aureus (MRSA) in nosocomial infections and their antibiotic resistant pattern. A total of 321 clinical isolates of S. aureus were identified from different patients. The prevalence of methicillin resistance among S. aureus isolates was 8.7% (28 isola...
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This report presents the prevalence of Palestinian isolates of methicillin-resistant Staphylococcus aureus (MRSA) in nosocomial infections and their antibiotic resistant pattern. A total of 321 clinical isolates of S. aureus were identified from different patients. The prevalence of methicillin resistance among S. aureus isolates was 8.7% (28 isola...
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Ethanolic and hot water extracts from 4 different plant species used in Palestine in popular medicine for the treatment of several ailments of microbial and non-microbial origin were evaluated for potential antimicrobial activity against methicillinresistant Staphylococcus aureus (MRSA). Both water and ethanol extracts of Mentha longifolia, Melissa...
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The present study was initiated to assess and evaluate antimicrobial resistance in one hundred eighteen isolates of Shiga toxigenic Escherichia coli STEC O157 obtained from Northern Palestine. Eighty-three percent of isolates were resistant to ampicillin, followed by 59% to norfloxacin, 58% to tetracycline, 55% to gentamicin, 50% to chloramphinicol...
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Eighty isolates of Escherichia coli were collected in Northern Palestine throughout the 1996 to 2000 period from hospitalized patients with urinary tract infections (UTIs). Resistance rates were ampicillin, 65%; co-trimoxazole, 55%; cefuroxime, 10%; cefotaxime, 7.5%; ceftazidime, 2.5%; ciprofloxacin, 12.5%; gentamicin, 6.25% and amikacin, 1.25%. No...
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Full-text available
The antibacterial activities of hot water, methanol and ethanol extracts of 5 plant extracts utilized in Palestine in popular medicine were studied. The dried extracts of Syzyium aromaticum (Myrtaceae) (seed), Cinnamomum cassia(Lauraceae) (cassia bark, Chinese cinnamon) (bark), Salvia officinalis (Lamiaceaea) (leaf), Thymus vulgaris (Lamiaceaea) (l...

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