Motasem Almasri

Motasem Almasri
An-Najah National University · Faculty of Medicine and Health Sciences

Ph.D.

About

48
Publications
16,751
Reads
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315
Citations
Additional affiliations
August 2019 - October 2020
An-Najah National University
Position
  • Professor (Assistant)
September 2007 - April 2019
An-Najah National University
Position
  • Professor (Assistant)
Description
  • university
October 2001 - May 2005
Aristotle University of Thessaloniki
Position
  • PhD Student

Publications

Publications (48)
Article
Full-text available
Introduction: Mollicutes urogenital tract infections are considered a possible cause of infertility worldwide. Genital Mollicutes infections are difficult and impractical to diagnose by culturing or serology. Mollicutes included in this study were Mycoplasma hominis, Ureaplasma urealyticum, and Mycoplasma genitalium. This cross-sectional study aim...
Article
Full-text available
Paracetamol with ibuprofen or with naproxen are frequently prescribed by doctors in combination. It was found that patients using a combination of NSAID like acetaminophen and ibuprofen experienced less pain. Patients are more compliant if these two drugs are combined in an ester form and given in one dosage form. The esterified prodrugs are hydrol...
Article
Objective This project aims to develop a bio-natural nano-product with Cosmeceutical and pharmaceutical applications. Methods E. sativa oil was evaluated for its anti-oxidant, sun protection factor and elastase inhibition. Then, nanoemulgel formulations were prepared for E. sativa oil through the combination of nanoemulsion with hydrogel. E. sativ...
Article
The ongoing spread of multidrug-resistant bacteria over the past few decades necessitates collateral efforts to develop new classes of antibacterial agents with different mechanisms of action. The utilization of graphene nanosheets has recently gained attention with this respect. Herein, we have synthesized and tested the antibacterial activity of...
Article
Full-text available
Aim: To determine antimicrobial activity of Teucrium creticum (T. creticum) leaves extract against bacterial and fungal reference strains and multidrug resistant bacteria isolated at an oncology ward. Study Design: Cross-sectional study. Place and Duration of Study: The study was carried out in department of biology and biotechnology in An-Najah Na...
Article
Full-text available
Background: Origanum syriacum (O. syriacum) is a very popular edible and medicinal plant in the East Mediterranean countries. The aims of the current study were to use microwave-ultrasonic assisted hydrodistillation (MUAHD) method to produce essential oils (EOs) from wild O. syriacum samples collected from four different geographical areas in The...
Article
Full-text available
Abstract The present study is based on the investigation of performance of C,N-bipyrazole receptor grafted onto silica surface (SG2P) of adsorption Arsenic (AS) from aqueous solutions. The effects of operating parameters that include pH, con- tact time, concentration of As and dosage of adsorbent on adsorption were accomplished. The results clearly...
Article
Full-text available
Background: The semi-synthesis of drugs from natural products is still limited and complicated. Recently, there has been compelling global need to develop novel and potential antibacterial and antioxidant agents. Objectives: The current study aimed at semi-synthesizing new derivatives from naringin, to verify their chemical structures and assess th...
Article
The emergence of pathogenic microbes with increased resistance to established antibiotics provides a major incentive for the discovery of new antimicrobial agents. Herbals may provide valuable solutions for this global problem. In addition, the replacement of harmful synthetic antioxidants with natural ones may prevent various serious diseases. The...
Article
Full-text available
Introduction: In the last thirty years, interests in searching for plants with potential antimicrobial and antioxidant activities have been increased due to their probable health benefits. This study aimed to investigate the antimicrobial and antioxidant effects of various solvents fractions of Bupleurum lancifolium. Methods: The antioxidant activi...
Article
Full-text available
As infectious diseases continue to be one of the greatest health challenges worldwide, the demand toward alternative agents is continuously increasing. Recent advancement in nanotechnology has expanded our ability to design and construct nanomaterials to treat bacterial infections. Carbon nanotubes are one among these nanomaterials. Herein, we desc...
Article
Background: Various epidemiological studies showed that herbal remedies containing polyphenols may protect against various diseases such as cancers, vascular diseases and inflammatory pathologies. Currently, such groups of bioactive compounds have become a subject of many antimicrobials and antioxidant investigations. Accordingly, the current stud...
Article
Full-text available
Background: Since ancient times, the treatment of various diseases has relied on medicinal plants. The replacement of chemically synthesized drugs with natural medications gave the later advantageous due to their safety for humans. This study aimed to screen and to evaluate preliminarily phytoconstituents, total contents of flavonoids, tannins, and...
Article
Full-text available
In Palestine, many edible wild plants serve as food and medicine in the folk traditions. Now days, contemporary people, cultures, and traditions are increasingly losing their close connection with nature. Preliminary phytochemical screening including estimation of total phenols and flavonoids contents, as well as antioxidant and antibacterial prope...
Article
Background/aim: Macrolide and lincosamide antibiotics are used for the treatment of staphylococcal infections, especially for penicillin-allergic patients. In the present study, we evaluate the prevalence of resistance to macrolide and lincosamide antibiotics among staphylococci isolates. Materials and methods: A total of 200 staphylococcal clin...
Article
Ciprofloxacin is a broad spectrum fluoroquinolone antibiotic that acts by the inhibition of bacterial topoisomerase type II (DNA gyrase) and have a potent activity against Gram positive and negative bacteria. However, due to its rigid and solid-state structure it suffers from limited water solubility. Improving its pharmacokinetic properties especi...
Article
Full-text available
A number of naringin based heterocyclic derivatives dioxolane and imidazolidine have been synthesized and evaluated for their antioxidant and biological activities. The chemical structures of the newly synthesized compounds were verified on the basis of spectral and elemental methods of analysis. Investigation of antibacterial activity of these com...
Article
Full-text available
Background: Paracetamol is an analgesic and antipyretic agent. Honey is a nutrient that has many medicinal benefits and uses. It is has a demulcent activity and used in alternative medicine as a mild antitussive agent. Moreover, honey demonstrated an antitoxic activity in paracetamol-induced hepatotoxicity. Objective: The aim of this study is to fo...
Article
Full-text available
Sulfur nanoparticles (S-NPs) were prepared in this work by precipitation method using sodium thiosulphate and tetraoctylammonium bromide surfactants in conc. hydrochloric acid media. The sizes and shapes of S-NPs were confirmed by scanning electron microscope (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD) techniques. Brot...
Article
Full-text available
Sulfur nanoparticles (S-NPs) were prepared in this work by precipitation method using sodium thiosulphate and tetraoctylammonium bromide surfactants in conc. hydrochloric acid media. The sizes and shapes of S-NPs were confirmed by scanning electron microscope (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD) techniques. Brot...
Article
Full-text available
Sulfur nanoparticles (S-NPs) were prepared in this work by precipitation method using sodium thiosulphate and tetraoctylammonium bromide surfactants in conc. hydrochloric acid media. The sizes and shapes of S-NPs were confirmed by scanning electron microscope (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD) techniques. Brot...
Article
Full-text available
ealthcare systems especially rural areas healers and patients from centuries. An estimated 35,000 to 70,000 plant species are used for medicinal and therapeutic purposes in the world. The objectives of this study were to screen the phytochemical constituents and antibacterial activities also to evaluate antioxidant property of the Ammivisnaga(L.) L...
Article
Full-text available
Introduction:Viscum album is a semi-parasitic medicinal plant which has been used for many years as a remedy in traditional medicine. The plant is widely used in folk medicine in Palestine; mainly in the treatment of cancer, diabetes and heart disease. Since no previous reports on bioactivity of this plant in association with host plant specificity...
Article
Full-text available
Streptococcus pneumoniae is one of the most important bacterial pathogens that affect respiratory system. The occurrence of multidrug-resistant strains of S. pneumoniae necessitates the discovery of new classes of anti-pneumonia drugs. As some of the medicinal plants and their extracts have antibacterial activity, we aimed to investigate the antiba...
Article
Full-text available
The aim of the present study was to evaluate the antimi-crobial potential of aqueous and ethanol extracts of Thym-bra spicata L. (Lamiaceae), Nepeta curviflora Boiss. and Paronychia argentea Lam. (Caryophyllaceae) against six Gram negative bacteria and one Gram positive bacterium. Agar well diffusion method was adopted to examine the antimicrobial...
Article
Respiratory syncytial virus (RSV) is one of the main causes of bronchiolitis and pneumonia in infants and young children. The aims of the present study were to evaluate the role of RSV in children >2 years old hospitalized with community-acquired pneumonia (CAP) and to type the circulating RSV strains. Serum and throat swab samples were taken upon...
Article
Full-text available
Background: M. pneumoniae is a common cause of respiratory tract infections (RTIs) of variable severity especially in children. New diagnostic techniques offered more reliable information about the epidemiology of infection by this pathogen. Aim: The aim of this study was to investigate the prevalence and epidemiology of acute M. pneumoniae infe...
Data
Phylogenetic tree based on a 400-bp genome fragment of the polymerase gene of coronaviruses, including sequences from the present study (in boldface). Numbers at nodes represent the percentage of 100 bootstrap replicates that contained the cluster distal to the node. Bootstrap values >60% are indicated. HCoV, human coronavirus; SARS, severe acute r...
Article
Full-text available
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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Projects

Projects (3)
Project
the scope of this project is prepared cellulose nanocrystaline polymer in extracting toxic organic matter form pharmaceutical waste.
Archived project
Project
Antimicrobial activities of plant extracts and chemicals