1
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El-Zahry MR, Nasr JJM, Al-Shaalan NH, Mahmoud AF. SERS study of classical and newly β-lactams-metal complexation based on in situ laser-induced coral reefs-like silver photomicroclusters: In vitro study of antibacterial activity. J Pharm Biomed Anal 2023; 235:115617. [PMID: 37557063 DOI: 10.1016/j.jpba.2023.115617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 07/27/2023] [Accepted: 07/30/2023] [Indexed: 08/11/2023]
Abstract
The influence of metal complexation of two polar β-lactam antibiotics was investigated using surface enhanced Raman spectroscopy (SERS) technique. SERS method was applied to track the structural changes and the degradation behaviour of the studied compounds upon Zinc (II) ions-complexation. In situ laser-induced coral reefs-like photomicroclusters have been utilized as a SERS platform. The produced coral reefs-like photomicroclusters were characterized using scanning electron microscopy (SEM) and transmission electron microscope (TEM). The antibacterial efficiency of the antibiotics was investigated and compared before and after metal complexation using two techniques; agar well diffusion and growth curve. To provide a detailed elucidation of the complexation reaction, mass fragmentation of metal- antibiotics complexes was investigated using liquid chromatography/mass spectrometric (LC/MS) technique. It was found that metal complexation of classical β-lactam antibiotic (Ticarcillin) promoted the rate of its degradation, leading to a decrease of the antibacterial efficiency. On the other side, the antibacterial activity of the newly developed β-lactam (Faropenem) has been greatly enhanced via metal-complexation reaction.
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Affiliation(s)
- Marwa R El-Zahry
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Assiut University, 71526 Assiut, Egypt; Pharmaceutical Chemistry Department, Badr University in Assiut, 2014101 Assiut, Egypt.
| | - Jenny Jeehan M Nasr
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Nora H Al-Shaalan
- Chemistry Department, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Amer F Mahmoud
- Plant Pathology Department, Faculty of Agriculture, Assiut University, 71526 Assiut, Egypt
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2
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Al-Wahaibi LH, Blacque O, Al-Shaalan NH, Tiekink ERT, El-Emam AA. Crystal structure of 2-({[5-(adamantan-2-yl)-2-sulfanylidene-1,3,4-oxadiazolidin-3-yl]methyl}amino)benzonitrile, C 20H 22N 4OS. Z KRIST-NEW CRYST ST 2022. [DOI: 10.1515/ncrs-2022-0511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Abstract
C20H22N4OS, triclinic,
P
1
‾
$P\overline{1}$
(no. 2), a = 6.8528(3) Å, b = 11.3498(5) Å, c = 13.3896(9) Å, α = 114.083(5)°, β = 104.326(4)°, γ = 90.369(3)°, V = 914.38(9) Å3, Z = 2, R
gt
(F) = 0.0844, wR
ref
(F
2) = 0.2217, T = 160 K.
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Affiliation(s)
- Lamya H. Al-Wahaibi
- Department of Chemistry, College of Sciences , Princess Nourah bint Abdulrahman University , Riyadh 11671 , Saudi Arabia
| | - Olivier Blacque
- Department of Chemistry , University of Zurich , Winterthurerstrasse 190, 8057 Zurich , Switzerland
| | - Nora H. Al-Shaalan
- Department of Chemistry, College of Sciences , Princess Nourah bint Abdulrahman University , Riyadh 11671 , Saudi Arabia
| | - Edward R. T. Tiekink
- Research Centre for Crystalline Materials, School of Medical and Life Sciences, Sunway University , 47500 Bandar Sunway , Selangor Darul Ehsan , Malaysia
| | - Ali A. El-Emam
- Department of Medicinal Chemistry, Faculty of Pharmacy , Mansoura University , Mansoura 35516 , Egypt
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3
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Al-Wahaibi LH, Blacque O, Al-Shaalan NH, Tiekink ERT, El-Emam AA. Crystal structure of N-ethyl-4-[3-(trifluoromethyl)-phenyl]piperazine-1-carbothioamide, C 14H 18F 3N 3S. Z KRIST-NEW CRYST ST 2022. [DOI: 10.1515/ncrs-2022-0450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Abstract
C14H18F3N3S, monoclinic, P21/c (no. 14), a = 4.61919(4) Å, b = 29.1507(3) Å, c = 11.27803(10) Å, β = 94.4768(8)°, V = 1513.99(3) Å3, Z = 4, R
gt
(F) = 0.0588, wR
ref
(F
2) = 0.1579, T = 160 K.
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Affiliation(s)
- Lamya H. Al-Wahaibi
- Department of Chemistry , College of Sciences, Princess Nourah bint Abdulrahman University , Riyadh 11671 , Saudi Arabia
| | - Olivier Blacque
- Department of Chemistry , University of Zurich , Winterthurerstrasse 190 , 8057 Zurich , Switzerland
| | - Nora H. Al-Shaalan
- Department of Chemistry , College of Sciences, Princess Nourah bint Abdulrahman University , Riyadh 11671 , Saudi Arabia
| | - Edward R. T. Tiekink
- Research Centre for Crystalline Materials, School of Medical and Life Sciences, Sunway University , 47500 Bandar Sunway , Selangor Darul Ehsan , Malaysia
| | - Ali A. El-Emam
- Department of Medicinal Chemistry , Faculty of Pharmacy, Mansoura University , Mansoura 35516 , Egypt
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4
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Al-Wahaibi LH, Asokan KV, Al-Shaalan NH, Tawfik SS, Hassan HM, El-Emam AA, Percino MJ, Thamotharan S. Supramolecular Self-Assembly Mediated by Multiple Hydrogen Bonds and the Importance of C-S···N Chalcogen Bonds in N'-(Adamantan-2-ylidene)hydrazide Derivatives. ACS Omega 2022; 7:10608-10621. [PMID: 35382346 PMCID: PMC8973099 DOI: 10.1021/acsomega.2c00159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Accepted: 02/23/2022] [Indexed: 12/02/2022]
Abstract
![]()
The present article
comprehensively examines six N′-(adamantan-2-ylidene)hydrazide
derivatives using the Hirshfeld
surface analysis, PIXEL energy for molecular dimers, lattice energies
for crystal packing, and topological analysis for intramolecular and
intermolecular interactions. The crystal structure of one of the N′-(adamantan-2-ylidene)hydrazide derivatives, namely, N′-(adamantan-2-ylidene)-5-bromothiophene-2-carbohydrazide 1, C15H17N2OSBr, has been
determined and analyzed in detail along with five closely related
structures. The molecular conformation of 1 is locked
by an intramolecular C–S···N chalcogen bond
as found in one of its closely related structure, namely, N′-(adamantan-2-ylidene)thiophene-2-carbohydrazide.
Furthermore, a detailed potential energy surface scan analysis has
been performed to highlight the importance of a chalcogen bond. Two
of these compounds possess syn-orientation for amide units, whereas
the corresponding moiety exhibits anti-conformations in the remaining
four structures. The Hirshfeld surface and its decomposed fingerprint
plots provide a qualitative picture of acyl substituent effects on
the intermolecular interactions toward crystal packing of these six
structures. Intermolecular interaction energies for dimers observed
in these structures calculated by density functional theory (B97D3/def2-TZVP)
and PIXEL (MP2/6-31G**) methods are comparable. This study also identifies
that multiple hydrogen bonds, including N/C–H···O/N
and C–H···π interactions, are collectively
responsible for a self-assembled synthon. The nature and strength
of these interactions have been studied using atoms in molecule topological
analysis. The in vitro antiproliferative activity
of compound 1 was assessed against five human tumor cell
lines and showed marked antiproliferative activity.
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Affiliation(s)
- Lamya H. Al-Wahaibi
- Department of Chemistry, College of Sciences, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Karthick Vishal Asokan
- Biomolecular Crystallography Laboratory, Department of Bioinformatics, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613401, India
| | - Nora H. Al-Shaalan
- Department of Chemistry, College of Sciences, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Samar S. Tawfik
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Hanan M. Hassan
- Department of Pharmacology and Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, International Costal Road, Gamasa City, Mansoura 11152, Egypt
| | - Ali A. El-Emam
- Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - M. Judith Percino
- Unidad de Polímeros y Electrónica Orgánica, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Val3-Ecocampus Valsequillo, Independencia O2 Sur 50, San Pedro Zacachimalpa, Puebla 72960, Mexico
| | - Subbiah Thamotharan
- Biomolecular Crystallography Laboratory, Department of Bioinformatics, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613401, India
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5
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Al-Wahaibi LH, Abdalla M, Mary YS, Mary YS, Costa RA, Rana M, El-Emam AA, Hassan HM, Al-Shaalan NH. Spectroscopic, Solvation Effects and MD Simulation of an Adamantane-Carbohydrazide Derivative, a Potential Antiviral Agent. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2039233] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Lamya H. Al-Wahaibi
- Department of Chemistry, College of Sciences, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Mohnad Abdalla
- Key Laboratory of Chemical Biology (Ministry of Education), Department of Pharmaceutics, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, P.R. China
| | | | | | - Renyer Alves Costa
- Department of Chemistry, Federal University of Amazonas (DQ-UFAM), Manaus, Brazil
| | - Meenakshi Rana
- Department of Physics, School of Sciences, Uttarakhand Open University, Haldwani, India
| | - Ali A. El-Emam
- Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Hanan M. Hassan
- Department of Pharmacology and Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, International Costal Road, Gamasa City, Mansoura, Egypt
| | - Nora H. Al-Shaalan
- Department of Chemistry, College of Sciences, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
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6
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Sherif IO, Al-Shaalan NH. OUP accepted manuscript. Toxicol Res (Camb) 2022; 11:417-425. [PMID: 35782645 PMCID: PMC9244212 DOI: 10.1093/toxres/tfac021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/22/2022] [Accepted: 03/30/2022] [Indexed: 11/14/2022] Open
Abstract
Acute lung injury has been reported following various chemotherapeutic agents administration. Several pathways for lung injury have been speculated however, the exact mechanism of the lung injury induced by methotrexate (MTX) is yet to be defined. The potential protective effect of Ginkgo biloba extract (GB), a Chinese herbal medicine, against MTX-induced lung injury is still not reported. Therefore, this study was performed to examine the possible implication of NLRP3 inflammasome and miRNA-21 in the pathogenesis of the MTX-induced lung injury as well as the protective role of GB in ameliorating the induced lung injury. Rats received GB (100 mg/kg/day, orally) for 10 days and MTX (20 mg/kg single dose, intraperitoneally) on the fifth day. MTX-induced lung injury was manifested by lung histopathology. MTX exhibited a marked increase in lung malondialdehyde beside a notable decrease in lung reduced glutathione. Moreover, MTX injection activated the lung NLRP3 inflammasome by significant upregulation of the NLRP3, ASC, caspase-1 lung mRNA expressions and protein levels in addition to lung NF-kBp65 protein expression, and miRNA-21 expression when compared with the normal control group. However, GB administration mitigated lung injury and inhibited the NLRP3 activation. This study is the first report to reveal the involvement of NLRP3 inflammasome in the pathogenesis of MTX-induced lung injury and also to show that the administration of GB alleviates the lung injury induced by MTX via suppressing the oxidative stress, restoring the antioxidant activity, blocking the NLRP3/ASC/Caspase-1 signaling and downregulating the NF-kBp65 protein expression ae well as miRNA-21 expression in lung tissue.
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Affiliation(s)
- Iman O Sherif
- Corresponding Author: Dr. Iman O. Sherif, PhD, Consultant of Biochemistry, Emergency Hospital, Faculty of Medicine, Mansoura University, Mansoura, Egypt, ;
| | - Nora H Al-Shaalan
- Chemistry Department, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
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7
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Osman DA, Macías MA, Al-Wahaibi LH, Al-Shaalan NH, Zondagh LS, Joubert J, Garcia-Granda S, El-Emam AA. Structural Insights and Docking Analysis of Adamantane-Linked 1,2,4-Triazole Derivatives as Potential 11β-HSD1 Inhibitors. Molecules 2021; 26:5335. [PMID: 34500764 PMCID: PMC8433897 DOI: 10.3390/molecules26175335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/26/2021] [Accepted: 08/27/2021] [Indexed: 11/21/2022] Open
Abstract
The solid-state structural analysis and docking studies of three adamantane-linked 1,2,4-triazole derivatives are presented. Crystal structure analyses revealed that compound 2 crystallizes in the triclinic P-1 space group, while compounds 1 and 3 crystallize in the same monoclinic P21/c space group. Since the only difference between them is the para substitution on the aryl group, the electronic nature of these NO2 and halogen groups seems to have no influence over the formation of the solid. However, a probable correlation with the size of the groups is not discarded due to the similar intermolecular disposition between the NO2/Cl substituted molecules. Despite the similarities, CE-B3LYP energy model calculations show that pairwise interaction energies vary between them, and therefore the total packing energy is affected. HOMO-LUMO calculated energies show that the NO2 group influences the reactivity properties characterizing the molecule as soft and with the best disposition to accept electrons. Further, in silico studies predicted that the compounds might be able to inhibit the 11β-HSD1 enzyme, which is implicated in obesity and diabetes. Self- and cross-docking experiments revealed that a number of non-native 11β-HSD1 inhibitors were able to accurately dock within the 11β-HSD1 X-ray structure 4C7J. The molecular docking of the adamantane-linked 1,2,4-triazoles have similar predicted binding affinity scores compared to the 4C7J native ligand 4YQ. However, they were unable to form interactions with key active site residues. Based on these docking results, a series of potentially improved compounds were designed using computer aided drug design tools. The docking results of the new compounds showed similar predicted 11β-HSD1 binding affinity scores as well as interactions to a known potent 11β-HSD1 inhibitor.
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Affiliation(s)
- Doaa A. Osman
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, Oviedo University-CINN, 33006 Oviedo, Spain; (D.A.O.); (S.G.-G.)
| | - Mario A. Macías
- Crystallography and Chemistry of Materials, CrisQuimMat, Department of Chemistry, Universidad de Los Andes, Carrera 1 No. 18A-10, Bogotá 111711, Colombia;
| | - Lamya H. Al-Wahaibi
- Department of Chemistry, College of Sciences, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
| | - Nora H. Al-Shaalan
- Department of Chemistry, College of Sciences, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
| | - Luke S. Zondagh
- Pharmaceutical Chemistry, School of Pharmacy, University of the Western Cape, Private Bag X17, Bellville 7535, South Africa; (L.S.Z.); (J.J.)
| | - Jacques Joubert
- Pharmaceutical Chemistry, School of Pharmacy, University of the Western Cape, Private Bag X17, Bellville 7535, South Africa; (L.S.Z.); (J.J.)
| | - Santiago Garcia-Granda
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, Oviedo University-CINN, 33006 Oviedo, Spain; (D.A.O.); (S.G.-G.)
| | - Ali A. El-Emam
- Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
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8
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Al-Wahaibi L, Grandhi DS, Tawfik SS, Al-Shaalan NH, Elmorsy MA, El-Emam AA, Percino MJ, Thamotharan S. Probing the Effect of Halogen Substituents (Br, Cl, and F) on the Non-covalent Interactions in 1-(Adamantan-1-yl)-3-arylthiourea Derivatives: A Theoretical Study. ACS Omega 2021; 6:4816-4830. [PMID: 33644590 PMCID: PMC7905817 DOI: 10.1021/acsomega.0c05793] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Accepted: 02/02/2021] [Indexed: 12/20/2022]
Abstract
The effect of halogen substituents (X = Br, Cl, and F) on the crystal packing and intra- and intermolecular interactions in four adamantane-thiourea hybrid derivatives is investigated using different theoretical tools. The bromo and chloro derivatives exhibit 3D isostructurality as evident from lattice parameters, molecular conformation, and crystal packing. The density functional theory study suggests that the molecular conformation of the parent (unsubstituted) and fluoro derivatives exhibits a stable low energy anti-syn conformation. In contrast, bromo and chloro derivatives adopt stable and relatively high energy minima on their potential energy surfaces. Hirshfeld surface analysis reveals the effect of halogen substituents on the intermolecular contacts. The halogen atoms mainly reduce the contribution of H···H contacts toward crystal packing. PIXEL energy analysis indicates the strong dimer formed by N-H···S hydrogen bonds in all four structures. It also revealed that a vast number of H···H contacts observed in different dimers of these structures either presented along with other conventional interactions or solely stabilize the dimeric topology. The topological parameters for intermolecular interactions in these structures suggest an intermediate bonding character between shared and closed-shell interactions for N-H···S hydrogen bonds in the parent and chloro derivatives. In contrast, the N-H···S hydrogen bond in other structures is of a closed-shell interaction. Among four derivatives, the fluoro derivative is weakly packed in the solid state based on the PIXEL method's lattice energy calculation.
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Affiliation(s)
- Lamya
H. Al-Wahaibi
- Department
of Chemistry, College of Sciences, Princess
Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Divya Sri Grandhi
- Biomolecular
Crystallography Laboratory, Department of Bioinformatics, School of
Chemical and Biotechnology, SASTRA Deemed
University, Thanjavur 613 401, India
| | - Samar S. Tawfik
- Department
of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Nora H. Al-Shaalan
- Department
of Chemistry, College of Sciences, Princess
Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Mohammed A. Elmorsy
- Department
of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Ali A. El-Emam
- Department
of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - M. Judith Percino
- Unidad
de Polímeros y Electrónica Orgánica, Instituto
de Ciencias, Benemérita Universidad
Autónoma de Puebla, Val3-Ecocampus Valsequillo, Independencia O2 Sur 50, San Pedro Zacachimalpa, Puebla CP 72960, Mexico
| | - Subbiah Thamotharan
- Biomolecular
Crystallography Laboratory, Department of Bioinformatics, School of
Chemical and Biotechnology, SASTRA Deemed
University, Thanjavur 613 401, India
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9
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Sherif IO, Al-Shaalan NH. Alleviation of remote lung injury following liver ischemia/reperfusion: Possible protective role of vildagliptin. Int Immunopharmacol 2021; 91:107305. [PMID: 33388732 DOI: 10.1016/j.intimp.2020.107305] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 12/13/2020] [Accepted: 12/14/2020] [Indexed: 12/21/2022]
Abstract
Lung injury is a serious condition encountered following hepatic ischemia/reperfusion (IR). This study aimed to explore whether a dipeptidyl peptidase-4 inhibitor agent vildagliptin (V) could alleviate the lung injury caused by hepatic IR in a rat model and if so elucidate its molecular protective mechanism. Three groups of rats were used. Sham group: received normal saline and exposed to a sham operation, IR group: received normal saline and subjected to the operation of hepatic I (45 min)/ R (180 min), V+IR group: received for 10 days intraperitoneal injection of V (10 mg/kg/day). After reperfusion, liver and lung were collected for biochemical and histological evaluation. Hepatic IR exhibited significant elevation in serum alanine aminotransferase (ALT), alkaline phosphatase (ALP), and lactate dehydrogenase (LDH) enzyme levels, serum and lung malondialdehyde (MDA) and tumor necrosis factor-alpha (TNF-α) in addition to lung nitric oxide (NO) levels, hypoxia-inducible factor 1-alpha (HIF-1α) mRNA and protein levels, hepatocyte growth factor (HGF) mRNA expression, and inducible nitric oxide synthase (iNOS) mRNA and protein expressions in lung tissue along with a marked reduction in the serum and lung content of catalase in comparison to the sham group. Moreover, liver and lung injury in the IR group was detected by histopathological examination. Vildagliptin ameliorated markedly the biochemical changes as well as liver and lung architecture in comparison to the IR group. Vildagliptin mitigated the induced lung injury by hepatic IR via suppression of oxidative stress markers, pro-inflammatory cytokine TNF-α as well as the HIF1-α/iNOS/HGF expressions in lung tissue.
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Affiliation(s)
- Iman O Sherif
- Emergency Hospital, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt.
| | - Nora H Al-Shaalan
- Chemistry Department, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
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10
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Sherif IO, Al-Shaalan NH. Hepatoprotective effect of Ginkgo biloba extract against methotrexate-induced hepatotoxicity via targeting STAT3/miRNA-21 axis. Drug Chem Toxicol 2020; 45:1723-1731. [DOI: 10.1080/01480545.2020.1862859] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Iman O. Sherif
- Emergency Hospital, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Nora H. Al-Shaalan
- Chemistry Department, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
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11
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Abstract
Remote renal injury is a drastic consequence of hepatic ischemia/reperfusion (IR) injury. Vildagliptin (V) is a dipeptidyl peptidase-4 inhibitor that has a hepatorenal protective effect against models of liver and renal IR. This research was done to explore the protective role of vildagliptin against renal injury following hepatic IR injury as well as the possible involvement of transforming growth factor-beta (TGF-β)/Smad/alpha-smooth muscle actin (α-SMA) expressions in the pathophysiological mechanism of the remote renal injury. Three groups of male Wistar rats were organized into: sham group, IR group, and V + IR group in which 10 mg/kg/day of vildagliptin was pretreated for 10 days intraperitoneally. Blood in addition to renal and hepatic tissue samples was used for biochemical and histopathological studies. Hepatic IR induced a marked increase in serum creatinine, blood urea nitrogen, liver enzymes, renal nitric oxide, malondialdehyde, tumor necrosis factor-alpha levels with a marked upregulation of renal mRNA expressions of TGF-β, Smad2, Smad3, and α-SMA in addition to a marked decline in renal catalase content comparing to the sham group. Abnormal histopathological findings of hepatic and renal injury were detected in the IR group. Vildagliptin significantly improved these biochemical markers as well as the histopathological changes. The upregulation of renal TGF-β/Smad/α-SMA mRNA expressions was involved for the first time in the pathogenesis of the renal injury following hepatic IR and vildagliptin ameliorated this renal injury through blocking these expressions.
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Affiliation(s)
- Iman O Sherif
- Emergency Hospital, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | | | - Nora H Al-Shaalan
- Chemistry Department, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
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12
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Al-Wahaibi LH, Chakraborty K, Al-Shaalan NH, Syed Majeed MYA, Blacque O, Al-Mutairi AA, El-Emam AA, Percino MJ, Thamotharan S. Quantitative analysis of hydrogen and chalcogen bonds in two pyrimidine-5-carbonitrile derivatives, potential DHFR inhibitors: an integrated crystallographic and theoretical study. RSC Adv 2020; 10:36806-36817. [PMID: 35517953 PMCID: PMC9057057 DOI: 10.1039/d0ra07215j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 09/27/2020] [Indexed: 01/01/2023] Open
Abstract
Two potential bioactive pyrimidine-5-carbonitrile derivatives have been synthesized and characterized by spectroscopic techniques (1H and 13C-NMR) and the three dimensional structures were elucidated by single crystal X-ray diffraction at low temperature (160 K). In both structures, the molecular conformation is locked by an intramolecular C-H⋯C interaction involving the cyano and CH of the thiophene and phenyl rings. The intermolecular interactions were analyzed in a qualitative manner based on the Hirshfeld surface and 2D-fingerprint plots. The results suggest that the phenyl and thiophene moieties have an effect on the crystal packing. For instance, the chalcogen bonds are only preferred in the thiophene derivative. However, both structures uses a common N-H⋯O hydrogen bond motif. Moreover, the structures of 1 and 2 display 1D isostructurality and molecular chains stabilize by intermolecular N-H⋯O and N-H⋯N hydrogen bonds. The nature and extent of different non-covalent interactions were further characterized by the topological parameters derived from the quantum theory of atoms-in-molecules approach. This analysis indicates that apart from N-H⋯O hydrogen bonds, other non-covalent interactions are closed-shell in nature. A strong and linear N-H⋯O hydrogen bond shows intermediate bonding character between shared and closed-shell interactions. The molecular docking analysis suggests that both compounds display potential inhibitory effect against the dihydrofolate reductase (DHFR) enzyme from humans and Staphylococcus aureus.
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Affiliation(s)
- Lamya H Al-Wahaibi
- Department of Chemistry, College of Sciences, Princess Nourah Bint Abdulrahman University Riyadh 11671 Saudi Arabia
| | - Kushumita Chakraborty
- Biomolecular Crystallography Laboratory, Department of Bioinformatics, School of Chemical and Biotechnology, SASTRA Deemed University Thanjavur-613401 India
| | - Nora H Al-Shaalan
- Department of Chemistry, College of Sciences, Princess Nourah Bint Abdulrahman University Riyadh 11671 Saudi Arabia
| | - Mohamed Yehya Annavi Syed Majeed
- Biomolecular Crystallography Laboratory, Department of Bioinformatics, School of Chemical and Biotechnology, SASTRA Deemed University Thanjavur-613401 India
| | - Olivier Blacque
- Department of Chemistry, University of Zürich Winterthurerstrasse 190 8057 Zürich Switzerland
| | - Aamal A Al-Mutairi
- Department of Chemistry, College of Sciences, Imam Mohammad Ibn Saud Islamic University (IMSIU) Riyadh 11671 Saudi Arabia
| | - Ali A El-Emam
- Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University Mansoura 35516 Egypt
| | - M Judith Percino
- Unidad de Polímeros y Electrónica Orgánica, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla Val3-Ecocampus Valsequillo, Independencia O2 Sur 50, San Pedro Zacachimalpa Puebla-C.P.72960 Mexico
| | - Subbiah Thamotharan
- Biomolecular Crystallography Laboratory, Department of Bioinformatics, School of Chemical and Biotechnology, SASTRA Deemed University Thanjavur-613401 India
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El-Emam AA, Saveeth Kumar E, Janani K, Al-Wahaibi LH, Blacque O, El-Awady MI, Al-Shaalan NH, Percino MJ, Thamotharan S. Quantitative assessment of the nature of noncovalent interactions in N-substituted-5-(adamantan-1-yl)-1,3,4-thiadiazole-2-amines: insights from crystallographic and QTAIM analysis. RSC Adv 2020; 10:9840-9853. [PMID: 35498588 PMCID: PMC9050220 DOI: 10.1039/d0ra00733a] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 03/02/2020] [Indexed: 12/11/2022] Open
Abstract
Three adamantane-1,3,4-thiadiazole hybrid derivatives namely; N-ethyl-5-(adamantan-1-yl)-1,3,4-thiadiazole-2-amine I, N-(4-fluorophenyl)-5-(adamantan-1-yl)-1,3,4-thiadiazole-2-amine II and (4-bromophenyl)-5-(adamantan-1-yl)-N-1,3,4-thiadiazole-2-amine III, have been synthesized and crystal structures have been determined at low temperature. The structures revealed that the orientation of the amino group is different in non-halogenated structures. Intra- and intermolecular interactions were characterized on the basis of the quantum theory of atoms-in-molecules (QTAIM) approach. Intermolecular interaction energies for different molecular pairs have been obtained using the PIXEL method. Hirshfeld surface analysis and 2D-fingerprint plots revealed that the relative contributions of different non-covalent interactions are comparable in compounds with halogen (Br and F) substitutions. Crystal structures of II and III show isostructural behaviour with 1D supramolecular constructs. In all three structures, the N-H⋯N hydrogen bond was found to be stronger among other noncovalent interactions. The H-H bonding showed a closed shell in nature and played significant roles in the stabilization of these crystal structures.
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Affiliation(s)
- Ali A El-Emam
- Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University Mansoura 35516 Egypt
| | - Elangovan Saveeth Kumar
- Biomolecular Crystallography Laboratory, Department of Bioinformatics, School of Chemical and Biotechnology, SASTRA Deemed University Thanjavur-613401 India
| | - Krishnakumar Janani
- Biomolecular Crystallography Laboratory, Department of Bioinformatics, School of Chemical and Biotechnology, SASTRA Deemed University Thanjavur-613401 India
| | - Lamya H Al-Wahaibi
- Department of Chemistry, College of Sciences, Princess Nourah bint Abdulrahman University Riyadh 11671 Saudi Arabia
| | - Olivier Blacque
- Department of Chemistry, University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Mohamed I El-Awady
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University Mansoura 35516 Egypt
| | - Nora H Al-Shaalan
- Department of Chemistry, College of Sciences, Princess Nourah bint Abdulrahman University Riyadh 11671 Saudi Arabia
| | - M Judith Percino
- Unidad de Polímeros y Electrónica Orgánica, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Val3-Ecocampus Valsequillo Independencia O2 Sur 50, San Pedro Zacachimalpa Puebla-C.P. 72960 Mexico
| | - Subbiah Thamotharan
- Biomolecular Crystallography Laboratory, Department of Bioinformatics, School of Chemical and Biotechnology, SASTRA Deemed University Thanjavur-613401 India
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Al-Wahaibi LH, Sert Y, Ucun F, Al-Shaalan NH, Alsfouk A, El-Emam AA, Karakaya M. Theoretical and experimental spectroscopic studies, XPS analysis, dimer interaction energies and molecular docking study of 5-(adamantan-1-yl)-N-methyl-1,3,4-thiadiazol-2-amine. Journal of Physics and Chemistry of Solids 2019. [DOI: 10.1016/j.jpcs.2019.109091] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Sherif IO, Al-Shaalan NH, Sabry D. Ginkgo Biloba Extract Alleviates Methotrexate-Induced Renal Injury: New Impact on PI3K/Akt/mTOR Signaling and MALAT1 Expression. Biomolecules 2019; 9:biom9110691. [PMID: 31684190 PMCID: PMC6920877 DOI: 10.3390/biom9110691] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 10/28/2019] [Accepted: 11/02/2019] [Indexed: 12/15/2022] Open
Abstract
Renal injury induced by the chemotherapeutic agent methotrexate (MTX) is a serious adverse effect that has limited its use in the treatment of various clinical conditions. The antioxidant activity of Ginkgo biloba extract (GB) was reported to mitigate renal injury induced by MTX. Our research was conducted to examine the nephroprotective role of GB versus MTX-induced renal injury for the first time through its impact on the regulation of phosphatidylinositol 3-kinase/protein kinase B/ mammalian target of rapamycin (PI3K/Akt/mTOR) signaling together with the renal level of TGF-β mRNA and long non-coding RNA-metastasis-associated lung adenocarcinoma transcript-1 (MALAT1) expression. A group of adult rats was intraperitoneally (ip) injected with MTX 20 mg/kg as a single dose to induce kidney injury (MTX group). The other group of rats was orally administered with GB 60 mg/kg every day for 10 days (GB+ MTX group). The MTX increased the serum creatinine and urea levels, renal TGF-β mRNA and MALAT1 expression, in addition to dysregulation of the PI3K/Akt/mTOR signaling when compared with normal control rats that received saline only (NC group). Moreover, renal damage was reported histopathologically in the MTX group. The GB ameliorated the renal injury induced by MTX and reversed the changes of these biochemical analyses. The involvement of PI3K/Akt/mTOR signaling and downregulation of TGF-β mRNA and MALAT1 renal expressions were firstly reported in the nephroprotective molecular mechanism of GB versus MTX-induced renal injury.
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Affiliation(s)
- Iman O Sherif
- Emergency Hospital, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt.
| | - Nora H Al-Shaalan
- Chemistry Department, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia.
| | - Dina Sabry
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Cairo University, Cairo 11562, Egypt.
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El-Masry TA, Al-Shaalan NH, Tousson E, Buabeid M, Alyousef AM. The therapeutic and antineoplastic effects of vitamin B17 against the growth of solid-form Ehrlich tumours and the associated changes in oxidative stress, DNA damage, apoptosis and proliferation in mice. Pak J Pharm Sci 2019; 32:2801-2810. [PMID: 32024617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Many cancer therapies indirectly activate apoptosis by chemical or physical damage of DNA. This study was performed to evaluate protective potential of vitamin B17 (VitB17) against Ehrlich solid tumor (EST) induced changes in the oxidative stress, DNA damage, apoptosis and proliferation in mice. In the experiment, 60 female CD1 mice were randomly and allocated to the following four equal-sized groups [G1, negative control; G2, positive control (VitB17); G3, untreated EST; G4, EST treated with VitB17 (EST+VitB17)]. The untreated EST group displayed major increases in tumor volume, significant increase in the levels of MDA, H2O2, NO, PCNA, TNF-α, AFP and dsDNA and notable reductions in the catalase, GSH, P53 and SOD activities. By contrast, reduced levels of TNF-α, AFP, MDA, H2O2, NO, PCNA and dsDNA, along with enhanced levels of P53 and the antioxidant indicators catalase, GSH and SOD were observed in the EST+VitB17 group. These results indicate the antineoplastic and antioxidant properties of vitamin B17 with the potential to decrease the oxidative stress associated with ESTs by augmenting the antioxidant defence system.
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Affiliation(s)
- Thanaa A El-Masry
- Pharmaceutical Science Department, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia/Departement of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Nora H Al-Shaalan
- Chemistry Department, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Ehab Tousson
- Department of Zoology, Faculty of Science, Tanta University, Tanta, Egypt
| | - Manal Buabeid
- College of Pharmacy and Health Science, Ajman University, UAE
| | - Anhar M Alyousef
- Pharm D Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
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Al-Wahaibi LH, Al-Shaalan NH, Ghabbour HA, Tiekink ER, El-Emam AA. Crystal structure of 3,5-bis(trifluoromethyl)benzyl ( Z)- N′-(adamantan-1-yl)-4-phenylpiperazine-1-carbothioimidate, C 30H 33F 6N 3S. Z KRIST-NEW CRYST ST 2019. [DOI: 10.1515/ncrs-2019-0220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C30H33F6N3S, triclinic, P1̄ (no. 2), a = 9.3012(5) Å, b = 10.2734(5) Å, c = 15.1850(8) Å, α = 81.982(2)°, β = 78.696(2)°, γ = 83.882(2)°, V = 1404.25(13) Å3, Z = 2, R
gt(F) = 0.0779, wR
ref(F
2) = 0.2499, T = 293(2) K.
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Affiliation(s)
- Lamya H. Al-Wahaibi
- Department of Chemistry , College of Sciences, Princess Nourah Bint Abdulrahman University , Riyadh 11671 , Saudi Arabia
| | - Nora H. Al-Shaalan
- Department of Chemistry , College of Sciences, Princess Nourah Bint Abdulrahman University , Riyadh 11671 , Saudi Arabia
| | - Hazem A. Ghabbour
- Department of Medicinal Chemistry, Faculty of Pharmacy , University of Mansoura , Mansoura 35516 , Egypt
| | - Edward R.T. Tiekink
- Research Centre for Crystalline Materials, School of Science and Technology, Sunway University , 47500 Bandar Sunway, Selangor Darul Ehsan , Malaysia
| | - Ali A. El-Emam
- Department of Medicinal Chemistry, Faculty of Pharmacy , University of Mansoura , Mansoura 35516 , Egypt
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Al-Wahaibi LH, Akilandeswari G, Anusha R, Al-Shaalan NH, Alkmali OM, El-Emam AA, Percino JM, Thamotharan S. Insights into the nature of weak noncovalent interactions in 3-(4-fluorophenyl)-6-(2-fluorophenyl)-1,2,4-triazolo[3,4-b][1,3,4]thiadiazole, a potential bioactive agent: X-ray, QTAIM and molecular docking analysis. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.01.106] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Alothman ZA, Al-Shaalan NH, Habila MA, Unsal YE, Tuzen M, Soylak M. Dispersive liquid-liquid microextraction of lead(II) as 5-(4-dimethylaminobenzylidene) rhodanine chelates from food and water samples. Environ Monit Assess 2015; 187:9. [PMID: 25618567 DOI: 10.1007/s10661-014-4160-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Accepted: 11/10/2014] [Indexed: 06/04/2023]
Abstract
A dispersive liquid-liquid microextraction procedure for lead(II) as its 5-(4-dimethylaminobenzylidene) rhodanine complex has been established prior to its microsampling flame atomic absorption spectrometric determination. The influences of various analytical parameters including pH, solvent type and volume, dispersive solvent type and volume, 5-(4-dimethylaminobenzylidene) rhodanine amount, salt effect, and centrifugation time and speed were investigated. The effects of certain alkali, alkaline earth, and transition metal ions on the quantitative extraction of lead(II) were also studied. Quantitative recoveries were obtained at pH 6. The enrichment factor was calculated as 125. The detection limit for lead is 1.1 μg/L. The accuracy of the method was tested with the additions recovery test and analysis of the standard reference materials (SPS-WW2 waste water, NIST SRM 1515 apple leaves, and TMDA-51.3 fortified water). Applications of the present procedure were tested by analyzing water and food samples.
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Affiliation(s)
- Zeid A Alothman
- Advanced Materials Research Chair, Chemistry Department, College of Science, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia
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Badjah Hadj Ahmed AY, Obbed MS, Wabaidur SM, AlOthman ZA, Al-Shaalan NH. High-performance liquid chromatography analysis of phenolic acid, flavonoid, and phenol contents in various natural Yemeni honeys using multi-walled carbon nanotubes as a solid-phase extraction adsorbent. J Agric Food Chem 2014; 62:5443-5450. [PMID: 24871957 DOI: 10.1021/jf5011758] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A simple method has been described for simultaneous determination of phenolic acid, flavonoid, and other phenol contents in various natural honey samples collected from various regions of Yemen. Multi-walled carbon nanotubes were used as a solid-phase adsorbent for extraction of the polyphenols from honey samples. The total contents of phenolic acids, flavonoids, and phenolic components of the 12 different samples were found in the range of 363-2658, 261-1646, and 224-1355 μg/100 g of honey samples, respectively. The major phenolic acid, flavonoid, and phenolic compound in these samples were found to be 4-hydroxybenzoic acid (1410 μg/100 g), chrysin (850 μg/100 g), and cinnamic acid (1336 μg/100 g), respectively. A total of 25 compounds (10 phenolic acids, 9 flavonoids, and 6 phenols) were analyzed, and a total of 24 were detected, while only 23 compounds were determined quantitatively in the honey samples. The developed method showed potential usefulness for the analysis of honey and was used for the determination of polyphenols in honey extracts.
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Affiliation(s)
- A Y Badjah Hadj Ahmed
- Advanced Materials Research Chair, Department of Chemistry, College of Science, King Saud University , Post Office Box 2455, Riyadh 11451, Kingdom of Saudi Arabia
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Khan MR, Khan MA, Alothman ZA, Alsohaimi IH, Naushad M, Al-Shaalan NH. Quantitative determination of methylene blue in environmental samples by solid-phase extraction and ultra-performance liquid chromatography-tandem mass spectrometry: a green approach. RSC Adv 2014. [DOI: 10.1039/c4ra03504f] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Industrial effluents with dyes may have appreciably high chemical oxygen demand and suspended solids, posing adverse effects to both humans and aquatic life; therefore, quantitative monitoring of these effluents is essential.
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Affiliation(s)
- Mohammad Rizwan Khan
- Advanced Materials Research Chair
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh 11451, Kingdom of Saudi Arabia
| | - Moonis Ali Khan
- Advanced Materials Research Chair
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh 11451, Kingdom of Saudi Arabia
| | - Zeid Abdullah Alothman
- Advanced Materials Research Chair
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh 11451, Kingdom of Saudi Arabia
| | - Ibrahim Hotan Alsohaimi
- Advanced Materials Research Chair
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh 11451, Kingdom of Saudi Arabia
| | - Mu Naushad
- Advanced Materials Research Chair
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh 11451, Kingdom of Saudi Arabia
| | - Nora H. Al-Shaalan
- Department of Chemistry
- College of Science
- Princess Nora Bint Abdul Rahman University
- Riyadh, Kingdom of Saudi Arabia
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Al-Shaalan NH. Synthesis, characterization and biological activities of Cu(II), Co(II), Mn(II), Fe(II), and UO2(VI) complexes with a new Schiff Base hydrazone: O-hydroxyacetophenone-7-chloro-4-quinoline hydrazone. Molecules 2011; 16:8629-45. [PMID: 21996717 PMCID: PMC6264697 DOI: 10.3390/molecules16108629] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2011] [Revised: 09/30/2011] [Accepted: 10/10/2011] [Indexed: 11/16/2022] Open
Abstract
The Schiff base hydrazone ligand HL was prepared by the condensation reaction of 7-chloro-4-quinoline with o-hydroxyacetophenone. The ligand behaves either as monobasic bidentate or dibasic tridentate and contain ONN coordination sites. This was accounted for be the presence in the ligand of a phenolic azomethine and imine groups. It reacts with Cu(II), Ni(II), Co(II), Mn(II), UO(2) (VI) and Fe(II) to form either mono- or binuclear complexes. The ligand and its metal complexes were characterized by elemental analyses, IR, NMR, Mass, and UV-Visible spectra. The magnetic moments and electrical conductance of the complexes were also determined. The Co(II), Ni(II) and UO(2) (VI) complexes are mononuclear and coordinated to NO sites of two ligand molecules. The Cu(II) complex has a square-planar geometry distorted towards tetrahedral, the Ni(II) complex is octahedral while the UO(2) (VI) complex has its favoured heptacoordination. The Co(II), Mn(II) complexes and also other Ni(II) and Fe(III) complexes, which were obtained in the presence of Li(OH) as deprotonating agent, are binuclear and coordinated via the NNNO sites of two ligand molecules. All the binuclear complexes have octahedral geometries and their magnetic moments are quite low compared to the calculated value for two metal ions complexes and thus antiferromagnetic interactions between the two adjacent metal ions. The ligand HL and metal complexes were tested against a strain of Gram +ve bacteria (Staphylococcus aureus), Gram -ve bacteria (Escherichia coli), and fungi (Candida albicans). The tested compounds exhibited high antibacterial activities.
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Affiliation(s)
- Nora H Al-Shaalan
- Chemistry Department, College of Science, Princess Nora Bint Abdul Rahman University, 11322 Riyadh, P.O. 240549, Saudi Arabia.
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Al-Shaalan NH. Determination of phenylephrine hydrochloride and chlorpheniramine maleate in binary mixture using chemometric-assisted spectrophotometric and high-performance liquid chromatographic-UV methods. Journal of Saudi Chemical Society 2010. [DOI: 10.1016/j.jscs.2009.12.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Al-Shaalan NH. Determination of Diloxanide Furoate and Metronidazole in Binary Mixture Using First Derivative of the Ratio-Spectra and High-Performance Liquid Chromatography-UV Methods. ACTA ACUST UNITED AC 2007. [DOI: 10.3844/ajassp.2007.66.72] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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