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  1. Article: Protective Effects of Propolis and Chitosan Nanoparticles against Ibuprofen-Induced Hepatotoxicity in Albino Rats.

    AlKandari, Fajer M / Mohamed, Hussein S / Ahmed, Sayed A / Mahmoud, Basant / Mahmoud, Asmaa M

    Diseases (Basel, Switzerland)

    2024  Volume 12, Issue 3

    Abstract: Post-marketing hepatotoxicity findings are more common or occur much later. NSAIDs (non-steroidal anti-inflammatory drugs) like ibuprofen are consumed in large quantities around the world. NSAIDs have a low incidence of hepatotoxicity but their wide use ... ...

    Abstract Post-marketing hepatotoxicity findings are more common or occur much later. NSAIDs (non-steroidal anti-inflammatory drugs) like ibuprofen are consumed in large quantities around the world. NSAIDs have a low incidence of hepatotoxicity but their wide use makes them a major contributor to drug-induced liver injury. Hepatitis is linked to systemic oxidative stress which results in cellular necrosis and fibrosis, as well as tissue lipoprotein peroxidation and glutathione depletion. Given the lack of safe and effective anti-hepatitis drugs in medicine today, natural substances appear to be a promising and safe alternative. Propolis and chitosan are considered natural substances that have a protective effect on the hepatocytes. The purpose of this study was to validate the protective effect of propolis/chitosan nanoparticle extracts on ibuprofen-induced hepatotoxicity. Thirty (30) albino rats were used for the experiment. Animals were exposed to ibuprofen (400 mg/kg body weight/day) for 4 weeks (7 days/week) followed by treatment with propolis (200 mg/kg body weight/day) and chitosan extract (200 mg/kg body weight/day) separately and also in combination for consecutive 4 weeks. This study revealed a significant increase in serum transaminases, alkaline phosphatase, albumin, and total bilirubin in serum, as well as an increase in lipid peroxidation (MDA) and nitric oxide (NO). Furthermore, GSH, GST, and SOD decreased significantly in the group that was exposed to ibuprofen. Furthermore, there was a significant increase in pro-inflammatory parameters such as IL-1β and NF-ĸB, as well as low levels of anti-inflammatory parameters such as IL-6 and BCl-2. These alterations were improved by propolis and chitosan extracts, which was further confirmed in experimental animals. This study demonstrated that propolis and chitosan nanoparticle extracts have the potential to protect against hepatotoxicity induced by ibuprofen, due to their ability to regulate anti-inflammatory and anti-oxidative defense activities.
    Language English
    Publishing date 2024-02-29
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2720869-2
    ISSN 2079-9721
    ISSN 2079-9721
    DOI 10.3390/diseases12030049
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Polyethersulfone Blended with Titanium Dioxide Nanoribbons/Multi-Wall Carbon Nanotubes for Strontium Removal from Water.

    Ashraf, Tarek / Alfryyan, Nada / Ashraf, Abdallah M / Ahmed, Sayed A / Shaban, Mohamed

    Polymers

    2022  Volume 14, Issue 7

    Abstract: Nanofiltration methods were used and evaluated for strontium removal from wastewater. The phase inversion method was used to create a variety of polyethersulfone (PES)/ ... ...

    Abstract Nanofiltration methods were used and evaluated for strontium removal from wastewater. The phase inversion method was used to create a variety of polyethersulfone (PES)/TiO
    Language English
    Publishing date 2022-03-29
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2527146-5
    ISSN 2073-4360 ; 2073-4360
    ISSN (online) 2073-4360
    ISSN 2073-4360
    DOI 10.3390/polym14071390
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Removal of Scale-Forming Ions and Oil Traces from Oil Field Produced Water Using Graphene Oxide/Polyethersulfone and TiO

    Ashraf, Tarek / Alfryyan, Nada / Nasr, Mervat / Ahmed, Sayed A / Shaban, Mohamed

    Polymers

    2022  Volume 14, Issue 13

    Abstract: Treatment of produced water in oil fields has become a tough challenge for oil producers. Nanofiltration, a promising method for water treatment, has been proposed as a solution. The phase inversion technique was used for the synthesis of nanofiltration ... ...

    Abstract Treatment of produced water in oil fields has become a tough challenge for oil producers. Nanofiltration, a promising method for water treatment, has been proposed as a solution. The phase inversion technique was used for the synthesis of nanofiltration membranes of polyethersulfone embedded with graphene oxide nanoparticles and polyethersulfone embedded with titanium nanoribbons. As a realistic situation, water samples taken from the oil field were filtered using synthetic membranes at an operating pressure of 0.3 MPa. Physiochemical properties such as water flux, membrane morphology, flux recovery ratio, pore size and hydrophilicity were investigated. Additionally, filtration efficiency for removal of constituent ions, oil traces in water removal, and fouling tendency were evaluated. The constituent ions of produced water act as the scaling agent which threatens the blocking of the reservoir bores of the disposal wells. Adding graphene oxide (GO) and titanium nanoribbons (TNR) to polyethersulfone (PES) enhanced filtration efficiency, water flux, and anti-fouling properties while also boosting hydrophilicity and porosity. The PES-0.7GO membrane has the best filtering performance, followed by the PES-0.7TNR and pure-PES membranes, with chloride salt rejection rates of 81%, 78%, and 35%; oil rejection rates of 88%, 85%, and 71%; and water fluxes of 85, 82, and 42.5 kg/m
    Language English
    Publishing date 2022-06-24
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2527146-5
    ISSN 2073-4360 ; 2073-4360
    ISSN (online) 2073-4360
    ISSN 2073-4360
    DOI 10.3390/polym14132572
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Advanced Equilibrium Studies for the Synergetic Impact of Polyaniline on the Adsorption of Rhodamine B Dye by Polyaniline/Coal Composite.

    Adel Sayed, Mohamed / Mohamed, Abdelrahman / Ahmed, Sayed A / El-Sherbeeny, Ahmed M / Al Zoubi, Wail / Abukhadra, Mostafa R

    ACS omega

    2023  Volume 8, Issue 49, Page(s) 47210–47223

    Abstract: The synergetic improvement effect of the polyaniline (PANI) hybridization process on the adsorption of rhodamine B dye (RB) by PANI/coal hybrid material (PANI/C) has been evaluated using both traditional equilibrium modeling and advanced isotherm ... ...

    Abstract The synergetic improvement effect of the polyaniline (PANI) hybridization process on the adsorption of rhodamine B dye (RB) by PANI/coal hybrid material (PANI/C) has been evaluated using both traditional equilibrium modeling and advanced isotherm investigations. The composite was prepared by polymerizing polyaniline in the presence of coal fractions with a surface area of 27.7 m
    Language English
    Publishing date 2023-12-01
    Publishing country United States
    Document type Journal Article
    ISSN 2470-1343
    ISSN (online) 2470-1343
    DOI 10.1021/acsomega.3c07355
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Computational and Molecular Docking Studies of New Benzene Sulfonamide Drugs with Anticancer and Antioxidant Effects.

    Mohamed, Hussein S / Abdelgawad, Mohamed A / Hegab, Momtaz / Hamza, Zeinab S / Nagdy, Amany M / Ahmed, Sayed A / Ahmed, Osama M / Ghoneim, Mohammed M

    Current organic synthesis

    2022  Volume 20, Issue 3, Page(s) 339–350

    Abstract: Background: The studies on the potential usage of benzene sulfonamide derivatives as anticancer agents are limited. benzene sulfonamide derivatives are currently used as anticancer agents against different breast cancer cell lines, such as MCF-7, lung ... ...

    Abstract Background: The studies on the potential usage of benzene sulfonamide derivatives as anticancer agents are limited. benzene sulfonamide derivatives are currently used as anticancer agents against different breast cancer cell lines, such as MCF-7, lung cancer cells (A549), prostate cancer cells (Du-145), and cervical cells (HeLa).
    Objective: A series of new sulfonamide drugs are synthesized by reacting aldehydes thio-semi-carbazones derivatives with benzene sulphonyl chloride to form benzylidene-N-(phenylsulfonyl) hydrazine-1-carbothioamide derivatives. Studying the anticancer effects against MCF-7 breast carcinoma cell lines and the antioxidant activities of these newly synthesized compounds.
    Methods: Studying the anticancer effects against MCF-7 breast carcinoma cell lines and the antioxidant activities of these newly synthesized compounds. To study the anti-breast cancer activity of the newly synthesized compounds, a molecular docking study is used to analyze the binding energy for the nonbonding interactions between the ligands (studied compounds) and receptor (4PYP (pdb code: 4FA2)) against human breast cancer (MCF-7) cells. The bioavailability of all studied compounds is confirmed by pharmacological investigations using Mol inspiration and absorption, distribution, metabolism, excretion, and toxicity online servers.
    Results: The two derivatives, 2-(4- methoxy benzylidene)-N-(phenylsulfonyl) hydrazine-1-carbothioamide (4c) and 2-(4-dimethylamino) benzylidene)-N-(phenylsulfonyl) hydrazine-1-carbothioamide (4e) show the most potent anticancer effects against MCF-7 breast carcinoma cell lines. Meanwhile, these two derivatives show the lowest antioxidant activities.
    Conclusion: The different spectral techniques were used to confirm the structure of the novel synthesized compounds. Further, 2-(4-(dimethyl amino) benzylidene)-N- (phenylsulfonyl)hydrazine-1-carbothioamide (4e) and 2-(4- methoxy benzylidene)-N-(phenylsulfonyl) hydrazine-1 carbothioamide (4c) were the most potent anticancer derivatives against MCF-7 breast carcinoma cell lines. Furthermore, they exhibited the most potent antioxidant activities. Meanwhile, the 2-benzylidene-N-(phenylsulfonyl) hydrazine-1-carbothioamide (4a) and 2-(4-chloro benzylidene)-N-(phenylsulfonyl) hydrazine-1-carbothioamide (4d) had the lowest antioxidant potentials. The estimated binding energies, inhibition constant, intermolecular energies, and reference RMSD produced from docking for all studied compounds were reported. These values showed that all studied compounds formed stable complexes with the receptor with high binding affinity. It was further noted from the ADMET analysis that compounds 4c, 4d, and 4e have good absorption, low toxicity in the human liver, and medium BBB penetration. Hence, these studied compounds (4c-4e) may be suggested as potential compounds against human breast cancer MCF-7 cells.
    MeSH term(s) Humans ; Female ; Antioxidants/pharmacology ; Structure-Activity Relationship ; Molecular Docking Simulation ; Benzene ; Antineoplastic Agents/pharmacology ; Antineoplastic Agents/chemistry ; MCF-7 Cells ; Sulfanilamide ; Breast Neoplasms ; Sulfonamides/pharmacology
    Chemical Substances Antioxidants ; Benzene (J64922108F) ; Antineoplastic Agents ; Sulfanilamide (21240MF57M) ; Sulfonamides
    Language English
    Publishing date 2022-10-04
    Publishing country United Arab Emirates
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1570-1794
    ISSN 1570-1794
    DOI 10.2174/1570179420666221007141937
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Exhibiting the diagnostic face of selenium nanoparticles as a radio-platform for tumor imaging.

    Korany, Mohamed / Marzook, Fawzy / Mahmoud, Basant / Ahmed, Sayed A / Ayoub, Samia M / Sakr, Tamer M

    Bioorganic chemistry

    2020  Volume 100, Page(s) 103910

    Abstract: Selenium nanoparticles (SeNPs) have become one of the most prospective and promising tools in the course of cancer diagnosis and therapy. Here we describe the synthesis of a novel radioactive platform for tumor imaging using selenium nanoparticles. SeNPs ...

    Abstract Selenium nanoparticles (SeNPs) have become one of the most prospective and promising tools in the course of cancer diagnosis and therapy. Here we describe the synthesis of a novel radioactive platform for tumor imaging using selenium nanoparticles. SeNPs were synthetized using dithionite and glutathione as reducing and capping agent respectively with 5 mmol/L sodium selenite as a precursor and then SeNPs radiolabeled with technetium-99 m, the most common and famous radioactive isotope used for imaging purposes. A characteristic profile for the synthesized SeNPs was performed including size analysis, zeta potential, antioxidant activity, radiochemical yield and in-vivo biodistribution in normal and solid tumor bearing mice. Size analysis showed amorphous SeNP cores of a mean diameter of 21 ± 5 nm with a hydrodynamic size of 43 ± 8 nm and -28 mV zeta potential. The particles also showed a superior antioxidant activity of radical scavenging activity 55.6% according to DPPH assay, in addition, satisfying radiochemical yield up to 97 ± 1.5 was achieved. In vivo studies were applied on male Swiss albino mice that demonstrated a good biodistribution pattern in normal mice with a moderate accumulation in liver at 30 min post injection. Excellent T/NT ratios were obtained in solid tumor bearing mice throughout the experimental time points. The as-synthetized selenium nanoparticles demonstrated surprising and satisfying features which make them promising enough for tumor theranosis.
    MeSH term(s) Animals ; Antioxidants/chemistry ; Antioxidants/pharmacokinetics ; Glutathione/chemistry ; Glutathione/pharmacokinetics ; Male ; Mice ; Nanoparticles/analysis ; Nanoparticles/chemistry ; Neoplasms/diagnostic imaging ; Radionuclide Imaging ; Selenium/chemistry ; Selenium/pharmacokinetics ; Technetium/chemistry ; Technetium/pharmacokinetics ; Tissue Distribution
    Chemical Substances Antioxidants ; Technetium (7440-26-8) ; Glutathione (GAN16C9B8O) ; Selenium (H6241UJ22B)
    Language English
    Publishing date 2020-05-05
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 120080-x
    ISSN 1090-2120 ; 0045-2068
    ISSN (online) 1090-2120
    ISSN 0045-2068
    DOI 10.1016/j.bioorg.2020.103910
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Cytotoxic activities of flavonoids from Centaurea scoparia.

    Ahmed, Sayed A / Kamel, Emadeldin M

    TheScientificWorldJournal

    2014  Volume 2014, Page(s) 274207

    Abstract: Phytochemical studies on the ethanolic extract of the aerial parts of Centaurea scoparia led to the isolation of two new flavonoids, 3',4'-dihydroxy-(3'',4''-dihydro-3''-hydroxy-4''-acetoxy)-2'',2''-dimethylpyrano-(5'',6'':7,8)-flavone-3-O- β -D- ... ...

    Abstract Phytochemical studies on the ethanolic extract of the aerial parts of Centaurea scoparia led to the isolation of two new flavonoids, 3',4'-dihydroxy-(3'',4''-dihydro-3''-hydroxy-4''-acetoxy)-2'',2''-dimethylpyrano-(5'',6'':7,8)-flavone-3-O- β -D-glucopyranoside (1) and 3,3',4'-trihydroxy-(3'',4''-dihydro-3'',4''-dihydroxy)-2'',2''-dimethylpyrano-(5'',6'':7,8)-flavone (2), along with eight known flavonoids isolated for the first time from this plant, cynaroside (3), Apigetrin (4), centaureidin (5), oroxylin A (6), 5,7-dihydroxy-3',4',5'-trimethoxyflavone (7), atalantoflavone (8), 5-hydroxy-3',4',8-trimethoxy-2'',2''-dimethylpyrano (5'',6'':6,7)-flavone (9), and 3',4',5,8-tetramethoxy-2'',2''-dimethylpyrano (5'',6'':6,7)-flavone (10). The structures of the isolated compounds were elucidated by means of spectroscopic tools including 1D and 2D NMR, UV, IR, and mass spectroscopy. Cytotoxic activities of the isolated compounds were evaluated against human cervical carcinoma HeLa, human hepatocellular carcinoma HepG2, and human breast carcinoma MCF-7. Compound 2 was the most potent cytotoxic agent against HeLa cells with an IC50 0.079  μM.
    MeSH term(s) Antineoplastic Agents, Phytogenic/chemistry ; Antineoplastic Agents, Phytogenic/toxicity ; Cell Line, Tumor ; Cell Survival/drug effects ; Centaurea/chemistry ; Flavonoids/chemistry ; Flavonoids/toxicity ; Humans ; Inhibitory Concentration 50 ; Molecular Structure ; Nuclear Magnetic Resonance, Biomolecular ; Plant Extracts/chemistry ; Plant Extracts/toxicity
    Chemical Substances Antineoplastic Agents, Phytogenic ; Flavonoids ; Plant Extracts
    Language English
    Publishing date 2014-06-11
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2075968-X
    ISSN 1537-744X ; 1537-744X
    ISSN (online) 1537-744X
    ISSN 1537-744X
    DOI 10.1155/2014/274207
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Comprehensive evaluation of zeolite/marine alga nanocomposite in the removal of waste dye from industrial wastewater.

    Hamd, Ahmed / Shaban, Mohamed / Al-Senani, Ghadah M / Alshabanat, Mashael N / Al-Ghamdi, Azza / Dryaz, Asmaa Ragab / Ahmed, Sayed A / El-Sayed, Refat / Soliman, N K

    Scientific reports

    2023  Volume 13, Issue 1, Page(s) 8082

    Abstract: A systematic study integrating laboratory, analytical, and case study field trial was conducted to figure out the effective adsorbent that could be used for the removal of Congo red (CR) dye from industrial wastewater effluent. The ability of the zeolite ...

    Abstract A systematic study integrating laboratory, analytical, and case study field trial was conducted to figure out the effective adsorbent that could be used for the removal of Congo red (CR) dye from industrial wastewater effluent. The ability of the zeolite (Z) to adsorb CR dye from aqueous solutions was evaluated after it was modified by the Cystoseira compressa algae (CC) (Egyptian marine algae). Zeolite, CC algae were combined together in order to form the new composite zeolite/algae composite (ZCC) using wet impregnation technique and then characterized by the aid of different techniques. A noticeable enhancement in the adsorption capacity of newly synthesized ZCC was observed if compared to Z and CC, particularly at low CR concentrations. The batch style experiment was selected to figure out the impact of various experimental conditions on the adsorption behavior of different adsorbents. Moreover, isotherms and kinetics were estimated. According to the experimental results, the newly synthesized ZCC composite might be applied optimistically as an adsorbent for eliminating anionic dye molecules from industrial wastewater at low dye concentration. The dye adsorption on Z and ZCC followed the Langmuir isotherm, while that of CC followed the Freundlich isotherm. The dye adsorption kinetics on ZCC, CC, and Z were agreed with Elovich, intra-particle, and pseudo-second-order kinetic models, correspondingly. Adsorption mechanisms were also assessed using Weber's intraparticle diffusion model. Finally, field tests showed that the newly synthesized sorbent has a 98.5% efficient in eliminating dyes from industrial wastewater, authorizing the foundation for a recent eco-friendly adsorbent that facilitate industrial wastewater reuse.
    MeSH term(s) Coloring Agents ; Zeolites ; Wastewater ; Hydrogen-Ion Concentration ; Congo Red ; Adsorption ; Kinetics ; Nanocomposites ; Water Pollutants, Chemical ; Industrial Waste
    Chemical Substances Coloring Agents ; Zeolites (1318-02-1) ; Wastewater ; Congo Red (3U05FHG59S) ; Water Pollutants, Chemical ; Industrial Waste
    Language English
    Publishing date 2023-05-18
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-023-34094-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Surface decoration of diatomite by Ni/NiO nanoparticles as hybrid composite of enhanced adsorption properties for malachite green dye and hexavalent chromium

    Abukhadra, Mostafa R / Ahmed, Sayed A / Rabie, Abdelrahman M / Sayed, Mohamed Adel

    Colloids and surfaces. 2019 June 10,

    2019  

    Abstract: Diatomite skeletons were decorated by Ni/NiO nanoparticles as novel hybrid materials of enhanced adsorption capacities for Malachite green dye (M.G) and Cr(VI) ions. The characteristic properties of the composite were investigated based on the obtained ... ...

    Abstract Diatomite skeletons were decorated by Ni/NiO nanoparticles as novel hybrid materials of enhanced adsorption capacities for Malachite green dye (M.G) and Cr(VI) ions. The characteristic properties of the composite were investigated based on the obtained results of X-ray diffraction, HSEM, HRTEM, FT-IR and pore size distribution analysis. The recorded enhancement in its textural and morphological properties was reflected in an obvious improvement in its adsorption properties. The theoretical qmax values are 350 mg/g and 338 mg/g for M.G and Cr(VI), respectively which are higher than most of the studied diatomite based adsorbents and nickel oxides. The kinetic behavior of Ni/diatomite system for both M.G and Cr(VI) was described based on the suggestion of the pseudo-second-order model and this was supported by its excellent fitness with Elovich model. The equilibrium behaviors can be identified as L-type that impeded strong affinities between the dissolved ions and Ni/diatomite. Additionally, the data fitted mainly with Langmuir model reflecting monolayer adsorption forms within homogenous receptor sites. The adsorption energies for M.G and Cr(VI) were calculated from Dubinin–Radushkevich model to be 5.64 KJ/mol and 6.32 K J/mol, respectively which suggest physisorption nature. The thermodynamic evaluation revealed the uptake of both ions by spontaneous endothermic physical reactions which were reflected in the values for free energy and enthalpy.
    Keywords adsorbents ; adsorption ; chromium ; diatomaceous earth ; endothermy ; enthalpy ; Fourier transform infrared spectroscopy ; Gibbs free energy ; ions ; malachite green ; models ; nanoparticles ; nickel ; nickel oxide ; porosity ; sorption isotherms ; transmission electron microscopy ; X-ray diffraction
    Language English
    Dates of publication 2019-0610
    Publishing place Elsevier B.V.
    Document type Article
    Note Pre-press version
    ZDB-ID 1500517-3
    ISSN 0927-7757
    ISSN 0927-7757
    DOI 10.1016/j.colsurfa.2019.06.018
    Database NAL-Catalogue (AGRICOLA)

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  10. Article ; Online: Experimentally and theoretically approaches for disperse red 60 dye adsorption on novel quaternary nanocomposites.

    Soliman, N K / Moustafa, A F / El-Mageed, H R Abd / Abdel-Gawad, Omima F / Elkady, Esraa T / Ahmed, Sayed A / Mohamed, Hussein S

    Scientific reports

    2021  Volume 11, Issue 1, Page(s) 10000

    Abstract: A comprehensive study that combined both experimental and computational experiments was performed to evaluate the usage of organo-metal oxide nanocomposite for the elimination of disperse red 60 dye (DR) from aqueous solutions. Chitosan was modified by ... ...

    Abstract A comprehensive study that combined both experimental and computational experiments was performed to evaluate the usage of organo-metal oxide nanocomposite for the elimination of disperse red 60 dye (DR) from aqueous solutions. Chitosan was modified by Schiff base to form nanoneedles chitosan-4-chloroacetophenone derivative. The derivatives were then impregnated with CeO
    Language English
    Publishing date 2021-05-11
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-021-89351-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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