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Fathaddin A, Alobaid S, Alhumoudi D, Almarshoud G, Alsubaie A, Alotaibi NH. Gastrointestinal basidiobolomycosis: a rare manifestation of Basidiobolus ranarum in a non-endemic region. J Surg Case Rep 2024; 2024:rjae289. [PMID: 38706477 PMCID: PMC11068474 DOI: 10.1093/jscr/rjae289] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 04/16/2024] [Indexed: 05/07/2024] Open
Abstract
Gastrointestinal basidiobolomycosis (GIB) is a rare fungal infection caused by the Basidiobolus ranarum, and it possesses a significant challenge to diagnose it as it presents with non-specific symptoms that often mimic cancer. Herein, we report a case of GIB in a 51-year-old male from the central region of Saudi Arabia, a non-endemic region of GIB, which was initially misdiagnosed as colon cancer. A 51-year-old man presented with abdominal pain for two-months, non-bloody diarrhea, loss of appetite, and weight loss. Abdominal examination revealed a large mass measuring ~10x15cm. Radiological findings prompted the diagnosis of a colon mass, and the patient was surgically treated under that impression. Hemicolectomy and end colostomy with mucous fistula from distal sigmoid stump were done. Histopathology was consistent with GIB. The diagnosis of GIB presents a serious challenge and requires a high index of clinical suspicion.
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Affiliation(s)
- Amany Fathaddin
- Department of Pathology, College of Medicine, King Saud University, Riyadh 12372, Saudi Arabia
| | - Sarah Alobaid
- College of Medicine, King Saud University, Riyadh 12372, Saudi Arabia
| | - Duaa Alhumoudi
- College of Medicine, King Saud University, Riyadh 12372, Saudi Arabia
| | - Ghaida Almarshoud
- College of Medicine, King Saud University, Riyadh 12372, Saudi Arabia
| | - Abdulaziz Alsubaie
- Department of Medicine, College of Medicine, King Saud University, Riyadh 12372, Saudi Arabia
| | - Naif H Alotaibi
- Department of Medicine, College of Medicine, King Saud University, Riyadh 12372, Saudi Arabia
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Venkatraman G, Mohan PS, Abdul-Rahman PS, Sonsudin F, Muttiah B, Hirad AH, Alarfaj AA, Wang S. Morinda citrifolia leaf assisted synthesis of ZnO decorated Ag bio-nanocomposites for in-vitro cytotoxicity, antimicrobial and anticancer applications. Bioprocess Biosyst Eng 2024:10.1007/s00449-024-02995-5. [PMID: 38509421 DOI: 10.1007/s00449-024-02995-5] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 03/06/2024] [Indexed: 03/22/2024]
Abstract
This study used Morinda citrifolia leaf (MCL) extract to synthesise Zinc oxide nanoparticles (ZnO NPs) and ZnO decorated silver nanocomposites (ZnO/Ag NCs). The synthesized nanomaterials structural morphology and crystallinity were characterized using a Field emission scanning electron microscope (FESEM) and X-ray diffraction (XRD) analysis. The antimicrobial activity of ZnO NPs and ZnO/Ag NCs was evaluated using human nosocomial bacterial pathogens. The highest antimicrobial activity was recorded for ZnO/Ag NCs at the minimum inhibitory concentration (MIC) at 80 and 100 μg/mL for Escherichia coli, Pseudomonas aeruginosa and Bacillus subtilis, Staphylococcus aureus than ZnO NPs at the MIC of 120 and 140 μg/mL for Bacillus subtilis and Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus. Furthermore, ROS detection, viability assay and bacterial membrane integrity analysis of ZnO/Ag NCs treated P. aeruginosa and S. aureus revealed the fundamental bactericidal mechanism involving cell wall, cell membrane interaction and release of cytoplasmic contents. In addition, ZnO/Ag NCs and ZnO NPs showed higher toxicity towards A549 lung cancer cells than the non-cancerous RAW264 macrophage cells, with IC50 of 242 and 398 µg/mL respectively, compared to IC50 of 402 and 494 µg/mL for the macrophage cells. These results suggest that the ZnO/Ag NCs can be effectively used to develop antimicrobial and anticancer materials.
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Affiliation(s)
- Gopinath Venkatraman
- Universiti Malaya Centre for Proteomics Research, Deputy Vice-Chancellors Research and Innovation, Universiti Malaya, 50603, Kuala Lumpur, Malaysia.
- Department of Biochemistry, Saveetha Dental College, Saveetha Institute of Medical & Technical Sciences, Saveetha University, Chennai, 600 077, India.
| | - Priyadarshini Sakthi Mohan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | | | - Faridah Sonsudin
- Department of Chemistry, Faculty of Science, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Barathan Muttiah
- Centre for Tissue Engineering and Regenerative Medicine (CTERM), Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, 56000, Kuala Lumpur, Malaysia
| | - Abdurahman Hajinur Hirad
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi Arabia
| | - Abdullah A Alarfaj
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi Arabia
| | - Shifa Wang
- School of Electronic and Information Engineering, Chongqing Three Gorges University, Chongqing, 404000, Wanzhou, China
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El-Sayed NNE, Al-Otaibi TM, Barakat A, Almarhoon ZM, Hassan MZ, Al-Zaben MI, Krayem N, Masand VH, Ben Bacha A. Synthesis and Biological Evaluation of Some New 3-Aryl-2-thioxo-2,3-dihydroquinazolin-4(1 H)-ones and 3-Aryl-2-(benzylthio)quinazolin-4(3 H)-ones as Antioxidants; COX-2, LDHA, α-Glucosidase and α-Amylase Inhibitors; and Anti-Colon Carcinoma and Apoptosis-Inducing Agents. Pharmaceuticals (Basel) 2023; 16:1392. [PMID: 37895863 PMCID: PMC10610505 DOI: 10.3390/ph16101392] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 09/17/2023] [Accepted: 09/20/2023] [Indexed: 10/29/2023] Open
Abstract
Oxidative stress, COX-2, LDHA and hyperglycemia are interlinked contributing pathways in the etiology, progression and metastasis of colon cancer. Additionally, dysregulated apoptosis in cells with genetic alternations leads to their progression in malignant transformation. Therefore, quinazolinones 3a-3h and 5a-5h were synthesized and evaluated as antioxidants, enzymes inhibitors and cytotoxic agents against LoVo and HCT-116 cells. Moreover, the most active cytotoxic derivatives were evaluated as apoptosis inducers. The results indicated that 3a, 3g and 5a were efficiently scavenged DPPH radicals with lowered IC50 values (mM) ranging from 0.165 ± 0.0057 to 0.191 ± 0.0099, as compared to 0.245 ± 0.0257 by BHT. Derivatives 3h, 5a and 5h were recognized as more potent dual inhibitors than quercetin against α-amylase and α-glucosidase, in addition to 3a, 3c, 3f and 5b-5f against α-amylase. Although none of the compounds demonstrated a higher efficiency than the reference inhibitors against COX-2 and LDHA, 3a and 3g were identified as the most active derivatives. Molecular docking studies were used to elucidate the binding affinities and binding interactions between the inhibitors and their target proteins. Compounds 3a and 3f showed cytotoxic activities, with IC50 values (µM) of 294.32 ± 8.41 and 383.5 ± 8.99 (LoVo), as well as 298.05 ± 13.26 and 323.59 ± 3.00 (HCT-116). The cytotoxicity mechanism of 3a and 3f could be attributed to the modulation of apoptosis regulators (Bax and Bcl-2), the activation of intrinsic and extrinsic apoptosis pathways via the upregulation of initiator caspases-8 and -9 as well as executioner caspase-3, and the arrest of LoVo and HCT-116 cell cycles in the G2/M and G1 phases, respectively. Lastly, the physicochemical, medicinal chemistry and ADMET properties of all compounds were predicted.
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Affiliation(s)
| | - Taghreed M. Al-Otaibi
- Department of Chemistry, College of Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (T.M.A.-O.); (A.B.); (M.I.A.-Z.)
| | - Assem Barakat
- Department of Chemistry, College of Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (T.M.A.-O.); (A.B.); (M.I.A.-Z.)
| | - Zainab M. Almarhoon
- Department of Chemistry, College of Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (T.M.A.-O.); (A.B.); (M.I.A.-Z.)
| | - Mohd. Zaheen Hassan
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Khalid University, Abha 62529, Saudi Arabia;
| | - Maha I. Al-Zaben
- Department of Chemistry, College of Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (T.M.A.-O.); (A.B.); (M.I.A.-Z.)
| | - Najeh Krayem
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS, Université de Sfax, Route de Soukra 3038, Sfax BP 1173, Tunisia;
| | - Vijay H. Masand
- Department of Chemistry, Vidya Bharati College, Camp, Amravati, Maharashtra 444602, India;
| | - Abir Ben Bacha
- Biochemistry Department, College of Sciences, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia;
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Mushtaq HMS, Kamran M, Alatawi FJ. World species of the subgenus Oligonychus (Reckiella) Tuttle and Baker (Acari, Prostigmata, Tetranychidae), diagnostic keys, taxonomic notes, and a new species. Sci Rep 2023; 13:13392. [PMID: 37591968 PMCID: PMC10435474 DOI: 10.1038/s41598-023-40436-7] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 08/10/2023] [Indexed: 08/19/2023] Open
Abstract
Oligonychus Berlese (Acari, Prostigmata, Tetranychidae) is an agriculturally important and the largest genus of spider mites, comprised of 211 species (including new species), two subgenera, four species groups, and 11 species subgroups. The present study comprehensively addressed the morphotaxonomic-based identification of world species of the subgenus Reckiella Tuttle and Baker. Five diagnostic keys were developed for identifying Oligonychus (Reckiella) species belonging to five species subgroups: iseilemae, pritchardi, biharensis, gossypii, and exsiccator. Taxonomic notes are provided on intraspecific variations and some closely related Oligonychus (Reckiella) species representing six species complexes, viz. the afrasiaticus complex, the litchii complex, the pratensis complex, the plegas complex, the sacchari complex, and the tylus complex. One new spider mite species, Oligonychus bahaensis sp. nov., is described and illustrated from Grasses (Poaceae) under the subgenus Reckiella.
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Affiliation(s)
- Hafiz Muhammad Saqib Mushtaq
- Acarology Laboratory, Department of Plant Protection, College of Food and Agriculture Sciences, King Saud University, P.O. Box No. 2460, 11451, Riyadh, Saudi Arabia
| | - Muhammad Kamran
- Acarology Laboratory, Department of Plant Protection, College of Food and Agriculture Sciences, King Saud University, P.O. Box No. 2460, 11451, Riyadh, Saudi Arabia
| | - Fahad Jaber Alatawi
- Acarology Laboratory, Department of Plant Protection, College of Food and Agriculture Sciences, King Saud University, P.O. Box No. 2460, 11451, Riyadh, Saudi Arabia.
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Alkompoz AK, Hamed SM, Zaid ASA, Almangour TA, Al-Agamy MH, Aboshanab KM. Correlation of CRISPR/Cas and Antimicrobial Resistance in Klebsiella pneumoniae Clinical Isolates Recovered from Patients in Egypt Compared to Global Strains. Microorganisms 2023; 11:1948. [PMID: 37630508 PMCID: PMC10459600 DOI: 10.3390/microorganisms11081948] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 07/27/2023] [Accepted: 07/28/2023] [Indexed: 08/27/2023] Open
Abstract
The CRISPR/Cas system has been long known to interfere with the acquisition of foreign genetic elements and was recommended as a tool for fighting antimicrobial resistance. The current study aimed to explore the prevalence of the CRISPR/Cas system in Klebsiella pneumoniae isolates recovered from patients in Egypt in comparison to global strains and correlate the CRISPR/Cas to susceptibility to antimicrobial agents. A total of 181 clinical isolates were PCR-screened for cas and selected antimicrobial resistance genes (ARGs). In parallel, 888 complete genome sequences were retrieved from the NCBI database for in silico analysis. CRISPR/Cas was found in 46 (25.4%) isolates, comprising 18.8% type I-E and 6.6% type I-E*. Multidrug resistance (MDR) and extensive drug resistance (XDR) were found in 73.5% and 25.4% of the isolates, respectively. More than 95% of the CRISPR/Cas-bearing isolates were MDR (65.2%) or XDR (32.6%). No significant difference was found in the susceptibility to the tested antimicrobial agents among the CRISPR/Cas-positive and -negative isolates. The same finding was obtained for the majority of the screened ARGs. Among the published genomes, 23.2% carried CRISPR/Cas, with a higher share of I-E* (12.8%). They were confined to specific sequence types (STs), most commonly ST147, ST23, ST15, and ST14. More plasmids and ARGs were carried by the CRISPR/Cas-negative group than others, but their distribution in the two groups was not significantly different. The prevalence of some ARGs, such as blaKPC, blaTEM, and rmtB, was significantly higher among the genomes of the CRISPR/Cas-negative strains. A weak, nonsignificant positive correlation was found between the number of spacers and the number of resistance plasmids and ARGs. In conclusion, the correlation between CRISPR/Cas and susceptibility to antimicrobial agents or bearing resistance plasmids and ARGs was found to be nonsignificant. Plasmid-targeting spacers might not be naturally captured by CRISPR/Cas. Spacer match analysis is recommended to provide a clearer image of the exact behavior of CRISPR/Cas towards resistance plasmids.
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Affiliation(s)
| | - Samira M. Hamed
- Department of Microbiology and Immunology, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), 6th of October, Giza 12451, Egypt;
| | - Ahmed S. Abu Zaid
- Department of Microbiology and Immunology, Faculty of Pharmacy, Ain Shams University, Cairo 11566, Egypt;
| | - Thamer A. Almangour
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Mohamed H. Al-Agamy
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
- Department of Microbiology and Immunology, Faculty of Pharmacy, Al-Azhar University, Cairo 11651, Egypt
| | - Khaled M. Aboshanab
- Department of Microbiology and Immunology, Faculty of Pharmacy, Ain Shams University, Cairo 11566, Egypt;
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Bawazeer G, Sales I, Albogami H, Aldemerdash A, Mahmoud M, Aljohani MA, Alhammad A. Crossword puzzle as a learning tool to enhance learning about anticoagulant therapeutics. BMC Med Educ 2022; 22:267. [PMID: 35410242 PMCID: PMC8995885 DOI: 10.1186/s12909-022-03348-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 04/06/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Educational games make the learning process more enjoyable, fun, and create a competitive classroom environment that can positively affect learning. The purpose of this study was to evaluate pharmacy students' perceptions of crossword puzzles (CWPs) as a learning tool in the pharmacotherapy cardiovascular module focusing on anticoagulants' therapeutics and assessing if students' preference of learning style influenced their perception. METHODS Clues for the puzzle were developed, validated, and piloted by course faculty. A free internet puzzle generator was used to create puzzles with 10 to 20 clues. Students were given 30 min to solve the puzzle following six hours of didactic lectures about the topic. An 8-item survey instrument and Pharmacists' Inventory of Learning Styles (PILS) questionnaire were administered to examine students' perceptions of the game and their learning style preference, respectively. RESULTS Two hundred sixty-seven students participated in the activity from both undergraduate programs (BPharm and PharmD) over three consecutive course offerings. Most students expressed favorable perceptions of the puzzle. Female and BPharm students had significantly more favorable perceptions than male and PharmD students on several perception items. The dominant preferred learning style (PLS) was converger (35.6%), followed by assimilator (25.3%), while 15.1% had mixed learning styles. The study did not find a significant association between PLS and students' perceptions toward the CWP. CONCLUSIONS The CWP game presented an innovative, creative, and easy active learning tool to enhance information recall, retention, and class engagement while accommodating all learning style preferences.
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Affiliation(s)
- Ghada Bawazeer
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, P.O. Box 89885, Riyadh, 11692 Saudi Arabia
| | - Ibrahim Sales
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, P.O. Box 89885, Riyadh, 11692 Saudi Arabia
| | - Huda Albogami
- Pharmaceutical Care Services, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
| | - Ahmed Aldemerdash
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, P.O. Box 89885, Riyadh, 11692 Saudi Arabia
| | - Mansour Mahmoud
- Department of Clinical and Hospital Pharmacy, College of Pharmacy, Taibah University, Al-Madinah Al-Munawarah, Saudi Arabia
| | | | - Abdullah Alhammad
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, P.O. Box 89885, Riyadh, 11692 Saudi Arabia
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Arif B, Arif Z, Ahmad J, Perveen K, Bukhari NA, Ashraf JM, Moinuddin, Alam K. Attenuation of hyperglycemia and amadori products by aminoguanidine in alloxan-diabetic rabbits occurs via enhancement in antioxidant defenses and control of stress. PLoS One 2022; 17:e0262233. [PMID: 34986201 PMCID: PMC8730428 DOI: 10.1371/journal.pone.0262233] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 12/20/2021] [Indexed: 12/13/2022] Open
Abstract
The micro- and macro-complications in diabetes mellitus (DM) mainly arise from the damage induced by Amadori and advanced glycation end products, as well as the released free radicals. The primary goal of DM treatment is to reduce the risk of micro- and macro-complications. In this study, we looked at the efficacy of aminoguanidine (AG) to prevent the production of early glycation products in alloxan-diabetic rabbits. Type1 DM was induced in rabbits by a single intravenous injection of alloxan (90 mg/kg body weight). Another group of rabbits was pre-treated with AG (100 mg/kg body weight) prior to alloxan injection; this was followed by weekly treatment with 100 mg/kg of AG for eight weeks. Glucose, insulin, and early glycation products (HbA1C and fructosamine) were measured in control, diabetic and AG treated diabetic rabbits. The effects of hyperglycemia on superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (Gpx), reduced glutathione (rGSH), nitric oxide, lipid peroxides, and protein carbonyl were investigated. Alloxan-diabetic rabbits had lower levels of SOD, CAT, Gpx, and rGSH than control rabbits. Nitric oxide levels were considerably greater. AG administration restored the activities of SOD, CAT, Gpx enzymes up to 70-80% and ameliorated the nitric oxide production. HbA1c and fructosamine levels were considerably lower in AG-treated diabetic rabbits. The observed control of hyperglycemia and amadori adducts in alloxan-diabetic rabbits by AG may be attributed to decrease of stress and restoration of antioxidant defenses.
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Affiliation(s)
- Binish Arif
- Department of Clinical Biochemistry, Sher-i-Kashmir Institute of Medical Sciences, Soura, Srinagar, J&K, India
| | - Zarina Arif
- Department of Biochemistry, J.N. Medical College, Faculty of Medicine, Aligarh Muslim University, Aligarh, UP, India
| | - Jamal Ahmad
- Formerly at Rajiv Gandhi Centre for Diabetes and Endocrinology, J.N. Medical College, Faculty of Medicine, Aligarh Muslim University, Aligarh, UP, India
| | - Kahkashan Perveen
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Najat A. Bukhari
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Jalaluddin M. Ashraf
- Department of Clinical Biochemistry, Faculty of Applied Medical Sciences, Jazan University, Kingdom of Saudi Arabia
| | - Moinuddin
- Department of Biochemistry, J.N. Medical College, Faculty of Medicine, Aligarh Muslim University, Aligarh, UP, India
| | - Khursheed Alam
- Department of Biochemistry, J.N. Medical College, Faculty of Medicine, Aligarh Muslim University, Aligarh, UP, India
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Rashidi MM, Nazari MA, Mahariq I, Assad MEH, Ali ME, Almuzaiqer R, Nuhait A, Murshid N. Thermophysical Properties of Hybrid Nanofluids and the Proposed Models: An Updated Comprehensive Study. Nanomaterials (Basel) 2021; 11:3084. [PMID: 34835847 PMCID: PMC8623954 DOI: 10.3390/nano11113084] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 10/27/2021] [Accepted: 11/05/2021] [Indexed: 11/16/2022]
Abstract
Thermal performance of energy conversion systems is one of the most important goals to improve the system's efficiency. Such thermal performance is strongly dependent on the thermophysical features of the applied fluids used in energy conversion systems. Thermal conductivity, specific heat in addition to dynamic viscosity are the properties that dramatically affect heat transfer characteristics. These features of hybrid nanofluids, as promising heat transfer fluids, are influenced by different constituents, including volume fraction, size of solid parts and temperature. In this article, the mentioned features of the nanofluids with hybrid nanostructures and the proposed models for these properties are reviewed. It is concluded that the increase in the volume fraction of solids causes improvement in thermal conductivity and dynamic viscosity, while the trend of variations in the specific heat depends on the base fluid. In addition, the increase in temperature increases the thermal conductivity while it decreases the dynamic viscosity. Moreover, as stated by the reviewed works, different approaches have applicability for modeling these properties with high accuracy, while intelligent algorithms, including artificial neural networks, are able to reach a higher precision compared with the correlations. In addition to the used method, some other factors, such as the model architecture, influence the reliability and exactness of the proposed models.
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Affiliation(s)
- Mohammad M. Rashidi
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China;
| | - Mohammad Alhuyi Nazari
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China;
| | - Ibrahim Mahariq
- College of Engineering and Technology, American University of the Middle East, Kuwait; (I.M.); (N.M.)
| | - Mamdouh El Haj Assad
- Sustainable and Renewable Energy Engineering Department, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates;
| | - Mohamed E. Ali
- Mechanical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia; (R.A.); (A.N.)
| | - Redhwan Almuzaiqer
- Mechanical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia; (R.A.); (A.N.)
| | - Abdullah Nuhait
- Mechanical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia; (R.A.); (A.N.)
| | - Nimer Murshid
- College of Engineering and Technology, American University of the Middle East, Kuwait; (I.M.); (N.M.)
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Abstract
Background The knowledge of Pap smear and uptake of preventive behaviors to prevent cervical cancer are the most important contributors to the advanced stage of the disease. Knowledge is one of the most leading factors to predict the health behaviors and a helpful factor in performing screening procedures. This study aimed to investigate Saudi Arabian women knowledge of Pap testing in relation to their intention to undergo the test. Methods An online survey including demographic characteristics (3 questions), knowledge (13 questions), and intentions (3 questions) towards Pap smear was completed by 467 Saudi Arabian women. Data were analyzed through SPSS version 22, using descriptive statistics and correlation to measure the relationship between knowledge, demographic factors, and intention. Results The study found that average level of knowledge was 1.3 which is between high and moderate knowledge, and the average score for the intention was 2.88, to indicate that the intentions to uptake Pap smear among the participants were above the average. The study revealed a significant correlation between demographic factors and intention (p<0.01). Conclusion Findings from the current study can inform health care providers about Saudi Arabian women knowledge of Pap smear and the intention to uptake the test. Strategies to motivate women to undergo Pap screening should be introduced.
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Affiliation(s)
- Nawal A. Alissa
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
- * E-mail:
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Mane PC, Sayyed SAR, Kadam DD, D Shinde M, Fatehmulla A, Aldhafiri AM, Alghamdi EA, Amalnerkar DP, Chaudhari RD. Terrestrial snail-mucus mediated green synthesis of silver nanoparticles and in vitro investigations on their antimicrobial and anticancer activities. Sci Rep 2021; 11:13068. [PMID: 34158586 PMCID: PMC8219800 DOI: 10.1038/s41598-021-92478-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [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: 12/24/2020] [Accepted: 06/08/2021] [Indexed: 12/24/2022] Open
Abstract
Over the past few years, biogenic methods for designing silver nanocomposites are in limelight due to their ability to generate semi-healthcare and para-pharmaceutical consumer goods. The present study reports the eco-friendly synthesis of silver nanoparticles from the hitherto unexplored mucus of territorial snail Achatina fulica by the facile, clean and easily scalable method. The detailed characterization of the resultant samples by UV-Visible Spectroscopy, FESEM-EDS, XRD and FTIR Spectroscopy techniques corroborated the formation of silver nanoparticles in snail mucus matrix. The resultant samples were tested against a broad range of Gram positive and Gram negative bacteria like Escherichia coli, Staphylococcus aureus, Klebsiella pneumoniae, Pseudomonas aeruginosa and a fungal strain Aspergillus fumigatus by well diffusion method. The results indicate that silver nanoparticles in mucus matrix exhibit strong antibacterial as well as antifungal activity. The pertinent experiments were also performed to determine the inhibitory concentration against both bacterial and fungal strains. Anticancer activity was executed by in vitro method using cervical cancer cell lines. Curiously, our biogenically synthesized Ag nanoparticles in biocompatible mucus revealed anticancer activity and demonstrated more than 15% inhibition of Hela cells. We suggest an interesting possibility of formulating antimicrobial and possibly anticancer creams/gels for topical applications in skin ailments.
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Affiliation(s)
- Pramod C Mane
- P. G. Department of Zoology and Research Centre, Shri Shiv Chhatrapati College of Arts, Commerce and Science, Junnar, Pune, 410 502, India
| | - Shabnam A R Sayyed
- P. G. Department of Zoology and Research Centre, Shri Shiv Chhatrapati College of Arts, Commerce and Science, Junnar, Pune, 410 502, India
| | - Deepali D Kadam
- P. G. Department of Zoology and Research Centre, Shri Shiv Chhatrapati College of Arts, Commerce and Science, Junnar, Pune, 410 502, India
| | - Manish D Shinde
- Centre for Materials for Electronics Technology, Panchawati, Off-Pashan Road, Pune, 411008, India
| | - Amanullah Fatehmulla
- Department of Physics and Astronomy College of Science, King Saud University, P. O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Abdullah M Aldhafiri
- Department of Physics and Astronomy College of Science, King Saud University, P. O. Box 2455, Riyadh, 11451, Saudi Arabia.
| | - Eman A Alghamdi
- Department of Physics and Astronomy College of Science, King Saud University, P. O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Dinesh P Amalnerkar
- Department of Technology, Savitribai Phule Pune University, Pune, 411 008, India.
| | - Ravindra D Chaudhari
- P. G. Department of Zoology and Research Centre, Shri Shiv Chhatrapati College of Arts, Commerce and Science, Junnar, Pune, 410 502, India.
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Al-Ashkar I, Al-Suhaibani N, Abdella K, Sallam M, Alotaibi M, Seleiman MF. Combining Genetic and Multidimensional Analyses to Identify Interpretive Traits Related to Water Shortage Tolerance as an Indirect Selection Tool for Detecting Genotypes of Drought Tolerance in Wheat Breeding. Plants (Basel) 2021; 10:931. [PMID: 34066929 PMCID: PMC8148561 DOI: 10.3390/plants10050931] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/25/2021] [Accepted: 04/28/2021] [Indexed: 12/15/2022]
Abstract
Water shortages have direct adverse effects on wheat productivity and growth worldwide, vertically and horizontally. Productivity may be promoted using water shortage-tolerant wheat genotypes. High-throughput tools have supported plant breeders in increasing the rate of stability of the genetic gain of interpretive traits for wheat productivity through multidimensional technical methods. We used 27 agrophysiological interpretive traits for grain yield (GY) of 25 bread wheat genotypes under water shortage stress conditions for two seasons. Genetic parameters and multidimensional analyses were used to identify genetic and phenotypic variations of the wheat genotypes used, combining these strategies effectively to achieve a balance. Considerable high genotypic variations were observed for 27 traits. Eleven interpretive traits related to GY had combined high heritability (h2 > 60%) and genetic gain (>20%), compared to GY, which showed moderate values both for heritability (57.60%) and genetic gain (16.89%). It was determined that six out of eleven traits (dry leaf weight (DLW), canopy temperature (CT), relative water content (RWC), flag leaf area (FLA), green leaves area (GLA) and leaf area index (LAI)) loaded the highest onto PC1 and PC2 (with scores of >0.27), and five of them had a positive trend with GY, while the CT trait had a negative correlation determined by principal component analysis (PCA). Genetic parameters and multidimensional analyses (PCA, stepwise regression, and path coefficient) showed that CT, RWC, GLA, and LAI were the most important interpretive traits for GY. Selection based on these four interpretive traits might improve genetic gain for GY in environments that are vulnerable to water shortages. The membership index and clustering analysis based on these four traits were significantly correlated, with some deviation, and classified genotypes into five groups. Highly tolerant, tolerant, intermediate, sensitive and highly sensitive clusters represented six, eight, two, three and six genotypes, respectively. The conclusions drawn from the membership index and clustering analysis, signifying that there were clear separations between the water shortage tolerance groups, were confirmed through discriminant analysis. MANOVA indicated that there were considerable variations between the five water shortage tolerance groups. The tolerated genotypes (DHL02, DHL30, DHL26, Misr1, Pavone-76 and DHL08) can be recommended as interesting new genetic sources for water shortage-tolerant wheat breeding programs.
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Affiliation(s)
- Ibrahim Al-Ashkar
- Plant Production Department, College of Food and Agriculture Sciences, King Saud University, Riyadh 11451, Saudi Arabia; (N.A.-S.); (K.A.); (M.S.); (M.A.)
- Agronomy Department, Faculty of Agriculture, Al-Azhar University, Cairo 11651, Egypt
| | - Nasser Al-Suhaibani
- Plant Production Department, College of Food and Agriculture Sciences, King Saud University, Riyadh 11451, Saudi Arabia; (N.A.-S.); (K.A.); (M.S.); (M.A.)
| | - Kamel Abdella
- Plant Production Department, College of Food and Agriculture Sciences, King Saud University, Riyadh 11451, Saudi Arabia; (N.A.-S.); (K.A.); (M.S.); (M.A.)
| | - Mohammed Sallam
- Plant Production Department, College of Food and Agriculture Sciences, King Saud University, Riyadh 11451, Saudi Arabia; (N.A.-S.); (K.A.); (M.S.); (M.A.)
| | - Majed Alotaibi
- Plant Production Department, College of Food and Agriculture Sciences, King Saud University, Riyadh 11451, Saudi Arabia; (N.A.-S.); (K.A.); (M.S.); (M.A.)
| | - Mahmoud F. Seleiman
- Plant Production Department, College of Food and Agriculture Sciences, King Saud University, Riyadh 11451, Saudi Arabia; (N.A.-S.); (K.A.); (M.S.); (M.A.)
- Department of Crop Sciences, Faculty of Agriculture, Menoufia University, Shibin El-Kom 32514, Egypt
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Shahid M, Khan MS, Syed A, Marraiki N, Elgorban AM. Mesorhizobium ciceri as biological tool for improving physiological, biochemical and antioxidant state of Cicer aritienum (L.) under fungicide stress. Sci Rep 2021; 11:9655. [PMID: 33958646 PMCID: PMC8102606 DOI: 10.1038/s41598-021-89103-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [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: 11/27/2020] [Accepted: 02/12/2021] [Indexed: 02/03/2023] Open
Abstract
Fungicides among agrochemicals are consistently used in high throughput agricultural practices to protect plants from damaging impact of phytopathogens and hence to optimize crop production. However, the negative impact of fungicides on composition and functions of soil microbiota, plants and via food chain, on human health is a matter of grave concern. Considering such agrochemical threats, the present study was undertaken to know that how fungicide-tolerant symbiotic bacterium, Mesorhizobium ciceri affects the Cicer arietinum crop while growing in kitazin (KITZ) stressed soils under greenhouse conditions. Both in vitro and soil systems, KITZ imparted deleterious impacts on C. arietinum as a function of dose. The three-time more of normal rate of KITZ dose detrimentally but maximally reduced the germination efficiency, vigor index, dry matter production, symbiotic features, leaf pigments and seed attributes of C. arietinum. KITZ-induced morphological alterations in root tips, oxidative damage and cell death in root cells of C. arietinum were visible under scanning electron microscope (SEM). M. ciceri tolerated up to 2400 µg mL-1 of KITZ, synthesized considerable amounts of bioactive molecules including indole-3-acetic-acid (IAA), 1-aminocyclopropane 1-carboxylate (ACC) deaminase, siderophores, exopolysaccharides (EPS), hydrogen cyanide, ammonia, and solubilised inorganic phosphate even in fungicide-stressed media. Following application to soil, M. ciceri improved performance of C. arietinum and enhanced dry biomass production, yield, symbiosis and leaf pigments even in a fungicide-polluted environment. At 96 µg KITZ kg-1 soil, M. ciceri maximally and significantly (p ≤ 0.05) augmented the length of plants by 41%, total dry matter by 18%, carotenoid content by 9%, LHb content by 21%, root N by 9%, shoot P by 11% and pod yield by 15% over control plants. Additionally, the nodule bacterium M. ciceri efficiently colonized the plant rhizosphere/rhizoplane and considerably decreased the levels of stressor molecules (proline and malondialdehyde) and antioxidant defence enzymes viz. ascorbate peroxidise (APX), guaiacol peroxidise (GPX), catalase (CAT) and peroxidises (POD) of C. arietinum plants when inoculated in soil. The symbiotic strain effectively colonized the plant rhizosphere/rhizoplane. Conclusively, the ability to endure higher fungicide concentrations, capacity to secrete plant growth modulators even under fungicide pressure, and inherent features to lower the level of proline and plant defence enzymes makes this M. ciceri as a superb choice for augmenting the safe production of C. arietinum even under fungicide-contaminated soils.
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Affiliation(s)
- Mohammad Shahid
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India.
| | - Mohammad Saghir Khan
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India
| | - Asad Syed
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Najat Marraiki
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Abdallah M Elgorban
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
- Center of Excellence in Biotechnology Research, King Saud University, Riyadh, Saudi Arabia
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Khalaf TM, Ramadan MZ, Ragab AE, Alhaag MH, AlSharabi KA. Psychophysiological responses to manual lifting of unknown loads. PLoS One 2021; 16:e0247442. [PMID: 33635903 PMCID: PMC7909684 DOI: 10.1371/journal.pone.0247442] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 02/08/2021] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND The handling of unknown weights, which is common in daily routines either at work or during leisure time, is suspected to be highly associated with the incidence of low back pain (LBP). OBJECTIVES To investigate the effects of knowledge and magnitude of a load (to be lifted) on brain responses, autonomic nervous activity, and trapezius and erector spinae muscle activity. METHODS A randomized, within-subjects experiment involving manual lifting was conducted, wherein 10 participants lifted three different weights (1.1, 5, and 15 kg) under two conditions: either having or not having prior knowledge of the weight to be lifted. RESULTS The results revealed that the lifting of unknown weights caused increased average heart rate and percentage of maximum voluntary contraction (%MVC) but decreased average inter-beat interval, very-low-frequency power, low-frequency power, and low-frequency/high-frequency ratio. Regardless of the weight magnitude, lifting of unknown weights was associated with smaller theta activities in the power spectrum density (PSD) of the central region, smaller alpha activities in the PSD of the frontal region, and smaller beta activities in the PSDs of both the frontal and central regions. Moreover, smaller alpha and beta activities in the PSD of the parietal region were associated only with lifting of unknown lightweights. CONCLUSIONS Uncertainty regarding the weight to be lifted could be considered as a stress-adding variable that may increase the required physical demand to be sustained during manual lifting tasks. The findings of this study stress the importance of eliminating uncertainty associated with handling unknown weights, such as in the cases of handling patients and dispatching luggage. This can be achieved through preliminary self-sensing of the load to be lifted, or the cautious disclosure of the actual weight of manually lifted objects, for example, through clear labeling and/or a coding system.
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Affiliation(s)
- Tamer M. Khalaf
- Department of Industrial Engineering, College of Engineering, King Saud University, Riyadh, Saudi Arabia
- Department of Mechanical Engineering, College of Engineering, Al-Azhar University, Cairo, Egypt
| | - Mohamed Z. Ramadan
- Department of Industrial Engineering, College of Engineering, King Saud University, Riyadh, Saudi Arabia
| | - Adham E. Ragab
- Department of Industrial Engineering, College of Engineering, King Saud University, Riyadh, Saudi Arabia
| | - Mohammed H. Alhaag
- Department of Industrial Engineering, College of Engineering, King Saud University, Riyadh, Saudi Arabia
| | - Khalil A. AlSharabi
- Department of Electrical Engineering, College of Engineering, King Saud University, Riyadh, Saudi Arabia
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Jabir MS, Saleh YM, Sulaiman GM, Yaseen NY, Sahib UI, Dewir YH, Alwahibi MS, Soliman DA. Green Synthesis of Silver Nanoparticles Using Annona muricata Extract as an Inducer of Apoptosis in Cancer Cells and Inhibitor for NLRP3 Inflammasome via Enhanced Autophagy. Nanomaterials (Basel) 2021; 11:384. [PMID: 33546151 PMCID: PMC7913157 DOI: 10.3390/nano11020384] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 01/25/2021] [Accepted: 01/29/2021] [Indexed: 12/19/2022]
Abstract
Annona muricata is one of the most important traditional medicinal plants which contains numerous chemicals that exhibit various pharmacological properties. In this study, silver nanoparticles were prepared using A. muricata peel extract as a reducing agent and the effect was enhanced through A. muricata like pharmaceutical activity. AgNPs formation was confirmed by color changes, UV-visible spectroscopy, SEM, DLS, and XRD. The anti-proliferative activity of AgNPs against THP-1, AMJ-13, and HBL cell lines was studied. Apoptotic markers were tested using AO/EtBr staining assay, cell cycle phases using flowcytometry, and the expression of P53. Autophagy takes an essential part in controlling inflammasome activation by primary bone marrow-derived macrophages (BMDMs). We report novel functions for AgNPs-affected autophagy, represented by the control of the release of IL-1β, caspase-1, adaptor protein apoptosis-associated speck-like protein containing a CARD (ASC), and NLRP3 in BMDMs following treatment with LPS+ATP. The current study revealed that the AgNPs inhibited THP-1 and AMJ-13 cell proliferation. Meanwhile, the AgNPs significantly increased autophagy and reduced IL-1b and NLRP3 levels in both in vivo and in vitro models. The secretion of IL-1β was reduced whereas the degradation of NLRP3 inflammasome was enhanced. These findings propose that AgNPs apply an anti-proliferative activity against THP-1 and AMJ-13 cells through the stimulation of apoptosis via mitochondrial damage and induction of p53 protein pathway. In addition, AgNP-induced autophagy reduced the levels of IL-1β and NLRP3 inflammasome activation. This indicated that the AgNPs augment autophagy controlled by the IL-1β pathway via two different novel mechanisms. The first one is regulating activation of the IL-1 β, caspae-1, and ASC, while the second is NLRP3 targeting for lysosomal degradation. Overall, this study suggests that AgNPs could be a potent therapy for various types of cancer and an alternative treatment for preventing inflammation via enhancing autophagy.
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Affiliation(s)
- Majid S. Jabir
- Department of Applied Sciences, University of Technology, Baghdad 10066, Iraq;
| | - Yasmin M. Saleh
- College of Education, Mustansiriyah University, Baghdad 10052, Iraq;
| | - Ghassan M. Sulaiman
- Department of Applied Sciences, University of Technology, Baghdad 10066, Iraq;
| | - Nahi Y. Yaseen
- Iraqi Center for Cancer and Medical Genetics Research, Mustansiriyah University, Baghdad 10052, Iraq;
| | - Usama I. Sahib
- Department of Applied Sciences, University of Technology, Baghdad 10066, Iraq;
| | - Yaser Hassan Dewir
- Plant Production Department, P.O. Box 2460, College of Food and Agriculture Sciences, King Saud University, Riyadh 11451, Saudi Arabia;
- Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh 33516, Egypt
| | - Mona S. Alwahibi
- Department of Botany and Microbiology, P.O. Box 22452, College of Science, King Saud University, Riyadh 11495, Saudi Arabia; (M.S.A.); (D.A.S.)
| | - Dina A. Soliman
- Department of Botany and Microbiology, P.O. Box 22452, College of Science, King Saud University, Riyadh 11495, Saudi Arabia; (M.S.A.); (D.A.S.)
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15
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Alharthi FA, Alghamdi AA, Al-Zaqri N, Alanazi HS, Alsyahi AA, Marghany AE, Ahmad N. Facile one-pot green synthesis of Ag-ZnO Nanocomposites using potato peeland their Ag concentration dependent photocatalytic properties. Sci Rep 2020; 10:20229. [PMID: 33214687 PMCID: PMC7678828 DOI: 10.1038/s41598-020-77426-y] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Accepted: 11/04/2020] [Indexed: 12/29/2022] Open
Abstract
Herein, a facile green synthesis route was reported for the synthesis of Ag-ZnO nanocomposites using potato residue by simple and cost effective combustion route and investigated the photocatalytic degradation of methylene blue (MB) dye. In the preparation potato extract functioned as a biogenic reducing as well as stabilizing agent for the reduction of Ag + , thus eliminating the need for conventional reducing/stabilizing agents. Ag-ZnO nanocomposites with different Ag mass fractions ranging from 2 to 10% were characterized by using XRD, FT-IR, XPS, SEM, TEM, and UV-Vis spectroscopy. XRD analysis revealed that the as prepared Ag-ZnO nanocomposites possessed high crystallinity with hexagonal wurtzite structure. TEM and SEM images showed that the Ag-ZnO nanocomposites in size ranging from 15 to 25 nm have been obtained, and the particle size was found to increase with the increase in percentage of Ag. FTIR results confirmed the characteristics band of ZnO along with the Ag bands. XPS analysis revealed a pair of doublet with peaks corresponding to Ag and a singlet with peaks corresponding to ZnO. With the increase of concentration of Ag in ZnO, the intensity of NBE emission in the PL spectra was observed to be decrease, resulted to the high photocatalytic activity. Photocatalytic properties of Ag-ZnO nanocomposites evaluated against the MB dye under visible-light irradiation showed superior photodegradation of ~ 96% within 80 min for 2% Ag-ZnO nanocomposites. The apparent reaction rate constant for 2% Ag-ZnO nanocomposites was higher than that of other nanocomposites, which proved to be the best photocatalyst for the maximum degradation of MB. Furthermore, various functional parameters such as dosing, reaction medium, concentration variation were performed on it for better understanding. The enhancement in photocatalytic degradation might be due to the presence of Ag nanoparticles on the surface of ZnO by minimizing the recombination of photo induced charge carriers in the nanocomposites.
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Affiliation(s)
- Fahad A Alharthi
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia.
| | - Abdulaziz Ali Alghamdi
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Nabil Al-Zaqri
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Hamdah S Alanazi
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Amjad Abdullah Alsyahi
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Adel El Marghany
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia
- Department of Chemistry, Faculty of Science, Suez University, Suez, Egypt
| | - Naushad Ahmad
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia
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Alalyan MJ, Alkahtani SA, Habib SS, Flatt AA. Suitability of Ultra-Short-Term Heart Rate Variability in Military Trainees. Healthcare (Basel) 2020; 8:E409. [PMID: 33080808 PMCID: PMC7711890 DOI: 10.3390/healthcare8040409] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 10/13/2020] [Accepted: 10/14/2020] [Indexed: 01/02/2023] Open
Abstract
We aimed to (a) evaluate the agreement between ultra-short-term and criterion resting heart rate variability (HRV) measures in military trainees, and (b) compare associations between HRV recording lengths and body composition. HRV recordings were performed for 10 min in 27 military male students. Mean RR interval, the root-mean square of successive differences (RMSSD), RMSSD:RR interval ratio, standard deviation of normal-to-normal RR intervals (SDNN), and SDNN:RR interval ratio were determined from the last 5 min of the 10-min recording and considered the criterion. Parameters were also recorded in successive 1-min epochs from the 5-min stabilization period. No differences were observed between criterion values and any of the 1-min epochs (p > 0.05). Effect sizes ranged from -0.36-0.35. Intra-class correlations ranged from 0.83-0.99. Limits of agreement ranged from 38.3-78.4 ms for RR interval, 18.8-30.0 ms for RMSSD, 1.9-3.1 for RMSSD:RR, 24.1-31.4 ms for SDNN, and 2.5-3.0 for SDNN:RR. Body fat% was associated (p < 0.05) with all HRV parameters at varying time segments. A 1-min HRV recording preceded by a 1-min stabilization period seems to be a suitable alternative to criterion measures. Ultra-short procedures may facilitate routine HRV tracking in tactical populations for status-monitoring purposes.
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Affiliation(s)
- Mubarak J. Alalyan
- King Fahd Security College, Riyadh 11461, Saudi Arabia;
- Department of Exercise Physiology, College of Sport Sciences and Physical Activity, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Shaea A. Alkahtani
- Department of Exercise Physiology, College of Sport Sciences and Physical Activity, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Syed Shahid Habib
- Department of Physiology, College of Medicine, King Saud University, Riyadh 12372, Saudi Arabia;
| | - Andrew A. Flatt
- Department of Health Sciences and Kinesiology, Biodynamics and Human Performance Center, Georgia Southern University—Armstrong, Savannah, GA 31419, USA
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Maurer D, Weber D, Ballering E, Alfarraj S, Albasher G, Hedrich R, Werner C, Rennenberg H. Photosynthetic cyclic electron transport provides ATP for homeostasis during trap closure in Dionaea muscipula. Ann Bot 2020; 125:485-494. [PMID: 31711177 PMCID: PMC7061167 DOI: 10.1093/aob/mcz185] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 11/08/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND AND AIMS The processes connected with prey capture and the early consumption of prey by carnivorous Dionaea muscipula require high amounts of energy. The aim of the present study was to identify processes involved in flytrap energy provision and ATP homeostasis under these conditions. METHODS We determined photosynthetic CO2 uptake and chlorophyll fluorescence as well as the dynamics of ATP contents in the snap traps upon closure with and without prey. KEY RESULTS The results indicate that upon prey capture, a transient switch from linear to cyclic electron transport mediates a support of ATP homeostasis. Beyond 4 h after prey capture, prey resources contribute to the traps' ATP pool and, 24 h after prey capture, export of prey-derived resources to other plant organs may become preferential and causes a decline in ATP contents. CONCLUSIONS Apparently, the energy demand of the flytrap for prey digestion and nutrient mining builds on both internal and prey-derived resources.
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Affiliation(s)
- Daniel Maurer
- Chair of Tree Physiology, Institute of Forest Sciences, University of Freiburg, Freiburg, Germany
| | - Daniel Weber
- Phytoprove Plant Analytics UG, Senckenberg Biodiversity & Climate Research Centre, Frankfurt am Main, Germany
| | - Eva Ballering
- Chair of Tree Physiology, Institute of Forest Sciences, University of Freiburg, Freiburg, Germany
- Chair of Ecosystem Physiology, Institute of Forest Sciences, University of Freiburg, Freiburg, Germany
| | - Salah Alfarraj
- College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Gada Albasher
- College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Rainer Hedrich
- Institute for Molecular Plant Physiology and Biophysics, Biocenter, University of Würzburg, Würzburg, Germany
| | - Christiane Werner
- Chair of Ecosystem Physiology, Institute of Forest Sciences, University of Freiburg, Freiburg, Germany
| | - Heinz Rennenberg
- Chair of Tree Physiology, Institute of Forest Sciences, University of Freiburg, Freiburg, Germany
- College of Sciences, King Saud University, Riyadh, Saudi Arabia
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Ram H, Jaipal N, Charan J, Kashyap P, Kumar S, Tripathi R, Singh BP, Siddaiah CN, Hashem A, Tabassum B, Abd Allah EF. Phytoconstituents of an ethanolic pod extract of Prosopis cineraria triggers the inhibition of HMG-CoA reductase and the regression of atherosclerotic plaque in hypercholesterolemic rabbits. Lipids Health Dis 2020; 19:6. [PMID: 31931807 PMCID: PMC6958682 DOI: 10.1186/s12944-020-1188-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 09/30/2019] [Accepted: 01/06/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The HMG-CoA reductase is key enzyme of cholesterol biosynthesis which potentially contributes in management of hypercholesterolemia. The present study was designed to assess the inhibitory effect of phytoconstituents of an ethanolic extract of Prosopis cineraria pods on HMG - CoA reductase and regression potential of atherosclerotic plaque. METHODS Healthy, adult male, albino rabbits in which hypercholesterolemia was induced by supplying the high fat diet and a supplement of cholesterol powder with coconut oil (500 mg/5 ml/Day/kg body weight) for 15 days, were used as a disease model. Phytochemical analysis of an ethanolic extract Prosopis cineraria pods was conducted using LCMS, GCMS and FTIR analysis. Further, in-vitro, in-vivo and in-silico assessments were performed. RESULTS The in-vitro assessment of HMG -CoA reductase activity indicated a 67.1 and 97.3% inhibition by the extract and a standard drug (Pravastatin), respectively. Additionally, an in-silico evaluation was made using appropriate docking software and results also indicated as significant interactions of the identified compounds with the target enzyme. Treatment of rabbits with the ethanolic extract of P. cineraria pod resulted in significant (P ≤ 0.001) reductions in total cholesterol, LDL cholesterol, VLDL cholesterol, and triglyceride. Accordingly, reductions were occurred in atherosclerotic plaque, intima and media of aortal wall along with lumen volume of the aorta significantly increased (P ≤ 0.001). CONCLUSION It can be illustrating that the ethanolic extract of Prosopis cineraria pod contains potent bioactive phytocompounds might be inhibit HMG - CoA reductase and have regression potential of atherosclerotic plaque.
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Affiliation(s)
- Heera Ram
- Department of Zoology, Jai Narain Vyas University, Jodhpur, Rajasthan, 342001, India.
| | - Noopur Jaipal
- Department of Zoology, Jai Narain Vyas University, Jodhpur, Rajasthan, 342001, India
| | - Jaykaran Charan
- Department of Pharmacology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, 342001, India
| | - Priya Kashyap
- UniversitySchool of Biotechnology, GGS Indraprastha University, Dwarka, Sector 16C, New Delhi, 110075, India
| | - Suresh Kumar
- UniversitySchool of Biotechnology, GGS Indraprastha University, Dwarka, Sector 16C, New Delhi, 110075, India
| | - Rashmi Tripathi
- Department of Bioscience and Biotechnology, Banasthali University, Banasthali, Rajasthan, 304022, India
| | - Bhim Pratap Singh
- Department of Biotechnology, Mizoram University, Aizawl, Mizoram, 796004, India
| | | | - Abeer Hashem
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box. 2460, Riyadh, 11451, Saudi Arabia
- Mycology and Plant Disease Survey Department, Plant Pathology Research Institute, ARC, Giza, 12511, Egypt
| | - Baby Tabassum
- Toxicology Laboratory, Department of Zoology, Govt. Raza P.G. College, Rampur, U.P, 244901, India
| | - Elsayed Fathi Abd Allah
- Plant Production Department, College of Food and Agricultural Sciences, King Saud University, P.O. Box. 2460, Riyadh, 11451, Saudi Arabia
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Abdelhameed AS, Attwa MW, Kadi AA. Liquid chromatography-tandem mass spectrometry metabolic profiling of nazartinib reveals the formation of unexpected reactive metabolites. R Soc Open Sci 2019; 6:190852. [PMID: 31598253 PMCID: PMC6731747 DOI: 10.1098/rsos.190852] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 07/22/2019] [Indexed: 06/10/2023]
Abstract
Nazartinib (EGF816, NZB) is a promising third-generation human epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor. This novel irreversible mutant-selective EGFR inhibitor targets EGFR containing both the resistance mutation (T790M) and the activating mutations (L858R and Del19), while it does not affect wild-type EGFR. However, the metabolic pathway and bioactivation mechanisms of NZB are still unexplored. Thus, using liquid chromatography-tandem mass spectrometry, we screened for products of NZB metabolism formed in vitro by human liver microsomal preparations and investigated the formation of reactive intermediates using potassium cyanide as a nucleophile trap. Unexpectedly, the azepane ring was not bioactivated. Instead, the carbon atom between the aliphatic linear tertiary amine and electron-withdrawing system (butenoyl amide group) was bioactivated, generating iminium intermediates as reactive species. Six NZB phase I metabolites, formed by hydroxylation, oxidation and N-demethylation, were characterized. Moreover, two reactive iminium ions were characterized and their corresponding bioactivation mechanisms were proposed. Based on our results, we speculate that bioactivation of NZB can be blocked by small sterically hindering groups, isosteric replacement or a spacer. This approach might reduce the toxicity of NZB by avoiding the generation of reactive species.
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Affiliation(s)
- Ali S. Abdelhameed
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, PO Box 2457, Riyadh 11451, Kingdom of Saudi Arabia
| | - Mohamed W. Attwa
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, PO Box 2457, Riyadh 11451, Kingdom of Saudi Arabia
- Students’ University Hospital, Mansoura University, Mansoura 35516, Egypt
| | - Adnan A. Kadi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, PO Box 2457, Riyadh 11451, Kingdom of Saudi Arabia
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Mahgoub SA, El-Mekkawy RM, Abd El-Hack ME, El-Ghareeb WR, Suliman GM, Alowaimer AN, Swelum AA. Inactivation of Listeria monocytogenes in ready-to-eat smoked turkey meat by combination with packaging atmosphere, oregano essential oil and cold temperature. AMB Express 2019; 9:54. [PMID: 31004222 PMCID: PMC6474889 DOI: 10.1186/s13568-019-0775-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 04/09/2019] [Indexed: 11/24/2022] Open
Abstract
The effects of packaging atmosphere, storage temperature and oregano essential oil (EO) on growth of Listeria monocytogenes on ready-to-eat smoked turkey were studied. Smoked turkey slices were inoculated with a strain of Listeria monocytogenes Scott A (5.95, 5.28 and 5.26 log CFU/g) then vacuum packaged (VP), modified atmosphere packaging (MAP: 40% CO2 and 60% N2) and MAP with oregano essential oil (MAPEO), respectively. The treated slices were then stored at 0, 5, 10 and 15 °C for 179.88 days and the L. monocytogenes Scott A's growth and microbial shelf life were monitored. The combination of MAP or MAPEO and storage temperature did not allow growth of L. monocytogenes higher than log 1 CFU/g during all storage periods. While in VP temperature combinations, the multiplication of bacteria were ≥ 1 log CFU/g. In VP, MAP and MAPEO smoked turkey, the growth of L. monocytogenes increased regardless of storage temperature. In MAPEO samples the inoculum in the product was suppressed by ca. 5 log CFU/g at 0, 10 and 15 °C at 180, 117 and 81 days of storage, respectively. The inhibition of L. monocytogenes in ready-to-eat smoked turkey by the combinations of MAP and MAPEO was enhanced by storage at 0 or 5 °C. The MAPEO system can be used effectively to control growth of pathogen in processed food when maintaining fixed temperature measures is difficult.
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Affiliation(s)
- Samir A. Mahgoub
- Microbiology Department, Faculty of Agriculture, Zagazig University, Zagazig, 44511 Egypt
| | - Rasha M. El-Mekkawy
- Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig, 44511 Egypt
| | | | - Waleed R. El-Ghareeb
- Department of Veterinary Public Health and Animal Husbandry, College of Veterinary Medicine, King Faisal University, Hofuf, Saudi Arabia
- Food Control Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Gamaleldin M. Suliman
- Department of Animal Production, College of Food and Agricultural Sciences, King Saud University, P.O Box 2460, Riyadh, 11451 Saudi Arabia
| | - Abdullah N. Alowaimer
- Department of Animal Production, College of Food and Agricultural Sciences, King Saud University, P.O Box 2460, Riyadh, 11451 Saudi Arabia
| | - Ayman A. Swelum
- Department of Animal Production, College of Food and Agricultural Sciences, King Saud University, P.O Box 2460, Riyadh, 11451 Saudi Arabia
- Department of Theriogenology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44519 Egypt
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21
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Al-Majid AM, Islam MS, Atef S, El-Senduny FF, Badria FA, Elshaier YAMM, Ali M, Barakat A, Motiur Rahman AFM. Synthesis of Pyridine-Dicarboxamide-Cyclohexanone Derivatives: Anticancer and α-Glucosidase Inhibitory Activities and In Silico Study. Molecules 2019; 24:E1332. [PMID: 30987350 PMCID: PMC6480224 DOI: 10.3390/molecules24071332] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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: 03/08/2019] [Revised: 03/31/2019] [Accepted: 04/03/2019] [Indexed: 11/16/2022] Open
Abstract
An efficient and practical method for the synthesis of 2,6-diaryl-4-oxo-N,N'-di(pyridin-2-yl)cyclohexane-1,1-dicarboxamide is described in this present study, which occurs through a double Michael addition reaction between diamide and various dibenzalacetones. The reaction was carried out in dichloromethane (DCM) in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU). The anticancer activities of the synthesized compounds were evaluated in several cancer cell lines, including MCF-7, MDA-MB-231, SAS, PC-3, HCT-116, HuH-7 and HepG2 cells. From these experiments, we determined that MDA-MB-231 was the most sensitive cancer cell line to the compounds 3c, 3e, 3d, 3j and 3l, which exhibited variable anticancer activities (3l [IC50 = 5 ± 0.25 µM] > 3e [IC50 = 5 ± 0.5 µM] > 3c [IC50 = 7 ± 1.12 µM] > 3d [IC50 = 18 ± 0.87 µM] > 3j [IC50 = 45 ± 3 µM]). Of these, 3l (substituted p-trifluoromethylphenyl and chloropyridine) showed good potency (IC50 = 6 ± 0.78 µM) against HCT-116 colorectal cancer cells and exhibited high toxicity against HuH-7 liver cancer cells (IC50 = 4.5 ± 0.3 µM). These values were three times higher than the values reported for cisplatin (IC50 of 8 ± 0.76 and 14.7 ± 0.5 µM against HCT-116 and HuH-7 cells, respectively). The highest α-glucosidase inhibitory activity was detected for the 3d, 3i and 3j compounds. The details of the binding mode of the active compounds were clarified by molecular docking studies.
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Affiliation(s)
- Abdullah Mohammed Al-Majid
- Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia.
| | - Mohammad Shahidul Islam
- Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia.
| | - Saleh Atef
- Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia.
| | - Fardous F El-Senduny
- Department of Chemistry, Faculty of Science, Mansura University, Mansura 35516, Egypt.
| | - Farid A Badria
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt.
| | - Yaseen A M M Elshaier
- Department of Organic and Medicinal chemistry, Faculty of Pharmacy, University of Sadat City, Menofia 32958, Egypt.
| | - M Ali
- Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia.
| | - Assem Barakat
- Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia.
- Department of Chemistry, Faculty of Science, Alexandria University, P.O. Box 426, Ibrahimia, Alexandria 21321, Egypt.
| | - A F M Motiur Rahman
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia.
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Alsaee SK, Omar AF, Ahmed NM, Alsadig A, Sulieman A, Alzimami K. EBT3 Films in Low Solar Ultraviolet and X-Ray Dose Measurement: A Comparative Analysis. Dose Response 2019; 17:1559325819855532. [PMID: 31236089 PMCID: PMC6572892 DOI: 10.1177/1559325819855532] [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] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Revised: 04/27/2019] [Accepted: 05/14/2019] [Indexed: 11/14/2022] Open
Abstract
The purpose of this study is to investigate the potentiality of Gafchromic external beam therapy 3 (EBT3) film to measure low dosage of solar ultraviolet (SUV; 0-10 600 mJ/cm2) and x-ray (0-750 mGy) radiation. In this experiment, 2 groups of EBT3 films were prepared with size 2 cm × 1 cm. The first group of films was exposed by incremental SUV dose in the middle of the day. The other group was irradiated by x-ray at 100 kVp, 100 mA, and 2 S of tube voltage, tube current, and exposure time, respectively. The measured SUV consists of 90% ultraviolet A (UVA) and 10% ultraviolet B. The film discoloration was represented by visible absorbance spectroscopy technique using Jaz spectrometer from Ocean Optics Inc. Simple linear regression produced high accuracy with coefficients of determination, r 2 of 0.9804 and root mean square error (RMSE) of 434.88 mJ/cm2 for the measurement of SUV dose. On the other hand, r 2 of 0.98 and RMSE of 31 mGy was produced for the measurement of x-ray dose. The application of multiple linear regression enhanced the measurement accuracy with R 2 of 99% and 99.7% and RMSE of 327.06 mJ/cm2 and 15.045 mGy for SUV and x-ray dose, respectively. The spectral analysis shows a promising measurement at selected wavelengths for SUV and x-ray dose.
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Affiliation(s)
- Saleh K. Alsaee
- School of Physics, Universiti Sains Malaysia, Penang, Malaysia
| | | | - Naser M. Ahmed
- School of Physics, Universiti Sains Malaysia, Penang, Malaysia
| | - Ahmed Alsadig
- Elettra-Sincrotrone Trieste S.C.p.A., Basovizza, Trieste, Italy
| | - A. Sulieman
- Radiology and Medical Imaging Department, Collage of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Alkharj, Saudi Arabia
| | - Khalid Alzimami
- Department of Radiological sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
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Alwelaie MA, Al-Mutary MG, Siddiqi NJ, Arafah MM, Alhomida AS, Khan HA. Time-Course Evaluation of Iminodipropionitrile-Induced Liver and Kidney Toxicities in Rats: A Biochemical, Molecular and Histopathological Study. Dose Response 2019; 17:1559325819852233. [PMID: 31191186 PMCID: PMC6537673 DOI: 10.1177/1559325819852233] [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] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 04/30/2019] [Accepted: 04/30/2019] [Indexed: 02/05/2023] Open
Abstract
Iminodipropionitrile (IDPN) is known to produce axonopathy and vestibular hair cell degeneration. Recent histopathological studies have shown IDPN-induced liver and kidney toxicities in rodents; however, the associated mechanisms are not clearly understood. We investigated the role of proinflammatory cytokines in IDPN-induced liver and kidney toxicities in rats. Rats were treated with saline (control) and IDPN (100 mg/kg, intraperitoneally) daily for 1, 5, and 10 days, respectively. Animals were killed 24 hours after the last dose and liver and kidneys were collected for histopathology and interleukin-1β (IL-1β), IL-6, and tumor necrosis factor-α messenger RNA expression analysis. Serum aspartate aminotransferase and alanine aminotransferase activities were significantly increased after 10 doses of IDPN. The level of serum creatinine was initially increased after the first dose of IDPN but subsided on days 5 and 10. Blood urea nitrogen levels were significantly increased on days 5 and 10 following IDPN exposure. Histopathology showed dose-dependent hepatotoxicity in IDPN-treated rats. Iminodipropionitrile-induced expression of proinflammatory cytokines peaked after day 1 in liver and after day 5 in kidneys. In conclusion, repeated exposure of IDPN for 10 days produced significant structural and functional damages in rat liver whereas kidneys showed gradual recovery with time. These findings point toward the role of inflammatory mediators in IDPN-induced toxicity in rats.
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Affiliation(s)
- Manar A. Alwelaie
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Mohsen G. Al-Mutary
- Department of Basic Sciences, College of Education, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Nikhat J. Siddiqi
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Maha M. Arafah
- Department of Pathology, College of Medicine, King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia
| | - Abdullah S. Alhomida
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Haseeb A. Khan
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
- Haseeb A. Khan, Department of Biochemistry, College of Science, Bldg. 5. King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia. Emails: ;
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Elansary HO, Szopa A, Kubica P, A Al-Mana F, Mahmoud EA, Zin El-Abedin TKA, A Mattar M, Ekiert H. Phenolic Compounds of Catalpa speciosa, Taxus cuspidate, and Magnolia acuminata have Antioxidant and Anticancer Activity. Molecules 2019; 24:E412. [PMID: 30678123 PMCID: PMC6384650 DOI: 10.3390/molecules24030412] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [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: 01/06/2019] [Revised: 01/21/2019] [Accepted: 01/22/2019] [Indexed: 02/06/2023] Open
Abstract
Tree bark represents an important source of medicinal compounds that may be useful for cancer therapy. In the current study, high-performance liquid chromatography with diode-array detection (HPLC-DAD) was used to determine the profile of the phenolic compounds of Catalpa speciosa, Taxus cuspidata, and Magnolia acuminata bark extracts. The antioxidant and anticancer bioactivities against different cancer cell lines were investigated. M. acuminata exerted significantly higher antioxidant activities in the diphenyl picrylhydrazine and β-carotene-linoleic acid assays than the other species. In C. speciosa, novel profiles of phenolic acids (ferulic acid was the predominant compound) and catechin were detected. In T. cuspidata, six phenolic acids were detected; the predominant compounds were hydroxycaffeic acid and protocatechuic acid. In M. acuminata, two phenolic acids and three catechins were detected; catechin was the predominant compound. The three species exerted clear anticancer activity against MCF-7, HeLa, Jurkat, T24, and HT-29 cells, with the strongest activity found in the extracts from M. acuminata. No antiproliferative activity against normal cells was found. Flow cytometry revealed greater accumulation of necrotic and early/late apoptotic cells in various treated cancer cells than in untreated control cells, and protocatechuic acid induced a similar accumulation of necrotic cells to that of the bark extracts. Caspase-3 and -7 activity was increased in cancer cells treated with different bark extracts; the highest activity was found in the M. acuminata treatment. Our results suggested that the treatment of cancer cells with bark extracts of M. acuminata, C. speciosa, and T. cuspidata, and protocatechuic acid induced apoptosis, suggesting an association between anticancer activities and individual phenolic compounds.
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Affiliation(s)
- Hosam O Elansary
- Plant production Department, College of Food and Agriculture Sciences, King Saud University, Riyadh 11451, Saudi Arabia.
- Floriculture, Ornamental Horticulture and Garden Design, Faculty of Agriculture, Alexandria University, Alexandria 00203, Egypt.
- Department of Geography, Environmental Management and Energy Studies, University of Johannesburg, Auckland Park Kingsway Campus (APK) Campus, Johannesburg 2006, South Africa.
| | - Agnieszka Szopa
- Department of Pharmaceutical Botany, Medical College, Jagiellonian University, ul. Medyczna 9, 30-688 Kraków, Poland.
| | - Paweł Kubica
- Department of Pharmaceutical Botany, Medical College, Jagiellonian University, ul. Medyczna 9, 30-688 Kraków, Poland.
| | - Fahed A Al-Mana
- Plant production Department, College of Food and Agriculture Sciences, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Eman A Mahmoud
- Department of Food Industries, Faculty of Agriculture, Damietta University, Damietta 34511, Egypt.
| | - Tarek K Ali Zin El-Abedin
- Department of Agricultural Engineering, College of Food and Agriculture Sciences, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Mohamed A Mattar
- Department of Agricultural Engineering, College of Food and Agriculture Sciences, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Halina Ekiert
- Department of Pharmaceutical Botany, Medical College, Jagiellonian University, ul. Medyczna 9, 30-688 Kraków, Poland.
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Bawazer W, Lashin A, Kinawy MM. Characterization of a fractured basement reservoir using high-resolution 3D seismic and logging datasets: A case study of the Sab'atayn Basin, Yemen. PLoS One 2018; 13:e0206079. [PMID: 30359402 PMCID: PMC6201913 DOI: 10.1371/journal.pone.0206079] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 10/05/2018] [Indexed: 11/18/2022] Open
Abstract
The Sab’atayn Basin is one of the most prolific Mesozoic hydrocarbon basins located in central Yemen. It has many oil producing fields including the Habban Field with oil occurrences in fractured basement rocks. A comprehensive seismic analysis of fractured basement reservoirs was performed to identify the structural pattern and mechanism of hydrocarbon entrapment and reservoir characteristics. A 3D post-stack time migration seismic cube and logging data of 20 wells were used and several 2D seismic sections were constructed and interpreted. Depth structure maps were generated for the basement reservoir and overlying formations. The top of the basement reservoir is dissected by a set of NW-SE step-like normal faults (Najd Fault System) and to a lesser extent, by secondary NNE-SSW oriented faults (Hadramauwt System). The Najd Fault System is dominant and dissects the reservoir in the middle of the field into two prospective uplifts. The northern and northeastern areas constitute the deep-seated downthrown side of the reservoir. Hydrocarbon emplacement is through the fault juxtaposition of the fractured basement against the organic shale source rock of the overlying Madbi Formation. Hydrocarbons are hosted in basement horsts formed by fault-controlled blocks and overlain by the regional seal of the Sab’atayn Formation. The basement reservoir rock is mainly composed of granite, quartz-feldspar, weathered silica, and mica minerals. Fractures were identified from the outcrops, cores, image logs, and the petrophysical analysis. Hydrocarbon saturation was observed in the upper and middle parts of the reservoir, more specifically in front of the highly fractured sections. The fracture porosity was less than 5% and the dead oil had an API gravity of 40° with no H2S or CO2. In conclusion, the structural highs of the Habban Field are of interest because most oil producing wells are drilled into them. We recommend extending the drilling and development activities in these uplifts.
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Affiliation(s)
- Waleed Bawazer
- Petroleum and Natural Gas Engineering Department, College of Engineering, King Saud University, Riyadh, Saudi Arabia
| | - Aref Lashin
- Petroleum and Natural Gas Engineering Department, College of Engineering, King Saud University, Riyadh, Saudi Arabia
- Geology Department, Faculty of Science, Benha University, Benha, Egypt
- * E-mail:
| | - Mostafa M. Kinawy
- Petroleum and Natural Gas Engineering Department, College of Engineering, King Saud University, Riyadh, Saudi Arabia
- Mining and Petroleum Engineering Department, Faculty of Engineering, Al-Azhar University, Cairo, Egypt
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26
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Malik A, Khan JM, Alamery SF, Fouad D, Labrou NE, Daoud MS, Abdelkader MO, Ataya FS. Monomeric Camelus dromedarius GSTM1 at low pH is structurally more thermostable than its native dimeric form. PLoS One 2018; 13:e0205274. [PMID: 30303997 PMCID: PMC6179282 DOI: 10.1371/journal.pone.0205274] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 09/21/2018] [Indexed: 01/01/2023] Open
Abstract
Glutathione S‒transferases (GSTs) are multifunctional enzymes that play an important role in detoxification, cellular signalling, and the stress response. Camelus dromedarius is well-adapted to survive in extreme desert climate and it has GSTs, for which limited information is available. This study investigated the structure-function and thermodynamic properties of a mu-class camel GST (CdGSTM1) at different pH. Recombinant CdGSTM1 (25.7 kDa) was expressed in E. coli and purified to homogeneity. Dimeric CdGSTM1 dissociated into stable but inactive monomeric subunits at low pH. Conformational and thermodynamic changes during the thermal unfolding pathway of dimeric and monomeric CdGSTM1 were characterised via a thermal shift assay and dynamic multimode spectroscopy (DMS). The thermal shift assay based on intrinsic tryptophan fluorescence revealed that CdGSTM1 underwent a two-state unfolding pathway at pH 1.0-10.0. Its Tm value varied with varying pH. Another orthogonal technique based on far-UV CD also exhibited two-state unfolding in the dimeric and monomeric states. Generally, proteins tend to lose structural integrity and stability at low pH; however, monomeric CdGSTM1 at pH 2.0 was thermally more stable and unfolded with lower van't Hoff enthalpy. The present findings provide essential information regarding the structural, functional, and thermodynamic properties of CdGSTM1 at pH 1.0-10.0.
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Affiliation(s)
- Ajamaluddin Malik
- Department of Biochemistry, Protein Research Chair, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Javed M. Khan
- Department of Food Science and Nutrition, Faculty of Food and Agricultural Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Salman F. Alamery
- Department of Biochemistry, Protein Research Chair, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Dalia Fouad
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Ein Helwan, Cairo, Egypt
| | - Nikolaos E. Labrou
- Laboratory of Enzyme Technology, Department of Biotechnology, School of Food, Biotechnology and Development, Agricultural University of Athens, Athens, Greece
| | - Mohamed S. Daoud
- Department of Biochemistry, Protein Research Chair, College of Science, King Saud University, Riyadh, Saudi Arabia
- King Fahd Unit Laboratory, Department of Clinical and Chemical Pathology, Kasr Al-Ainy University Hospital, Cairo University, El-Manial, Cairo, Egypt
| | - Mohamed O. Abdelkader
- Department of Biochemistry, Protein Research Chair, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Farid S. Ataya
- Department of Biochemistry, Protein Research Chair, College of Science, King Saud University, Riyadh, Saudi Arabia
- Molecular Biology Department, Genetic Engineering Division, National Research Centre, Dokki, Giza, Egypt
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Almeer RS, El-Khadragy MF, Abdelhabib S, Abdel Moneim AE. Ziziphus spina-christi leaf extract ameliorates schistosomiasis liver granuloma, fibrosis, and oxidative stress through downregulation of fibrinogenic signaling in mice. PLoS One 2018; 13:e0204923. [PMID: 30273397 PMCID: PMC6166951 DOI: 10.1371/journal.pone.0204923] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 09/16/2018] [Indexed: 01/22/2023] Open
Abstract
Schistosomiasis is a widespread parasitic infection that affects humans, as well as wild and domestic animals. It ranks second after malaria, with a significant health and socio-economic impact in the developing countries. The objective of this study was to assess the anti-schistosomal impact of Ziziphus spina-christi leaf extract (ZLE) on Schistosoma mansoni-induced liver fibrosis in CD-1 Swiss male albino mice. S. mansoni infection was achieved by dipping of mouse tails in schistosomal cercariae. ZLE treatment was initiated at 46 days post-infection by administering a dose of the extract on a daily basis for 10 consecutive days. S. mansoni infection resulted in liver granuloma and fibrosis, with a drastic elevation in liver function factors, nitric oxide, and lipid peroxidation, which were associated with a reduction in glutathione content and substantial inhibition of antioxidant enzyme activities compared to those of the control. Induction of hepatic granuloma, oxidative stress, and fibrosis in the liver was controlled by ZLE administration, which also produced inhibition of matrix metalloproteinase-9, alpha-smooth muscle actin, transforming growth factor-β, and tissue inhibitors of metalloproteinases expressions. In addition, the S. mansoni-infected group exhibited an increase in Bax and caspase-3 levels and a decrease in Bcl-2 level. However, treatment with ZLE mainly mitigated apoptosis in the liver. Thus, the findings of this study revealed that Ziziphus spina-christi had anti-apoptotic, anti-fibrotic, antioxidant, and protective effects on S. mansoni-induced liver wounds. The benefits of Ziziphus spina-christi extract on S. mansoni were partly partially mediated by enhancing anti-fibrinogenic and nuclear factor erythroid 2–related factor 2 (Nrf2) pathways.
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Affiliation(s)
- Rafa S. Almeer
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
- * E-mail: (RSA); (AEA)
| | - Manal F. El-Khadragy
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo, Egypt
| | - Semlali Abdelhabib
- Genome Research Chair, Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Ahmed E. Abdel Moneim
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo, Egypt
- * E-mail: (RSA); (AEA)
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Zou H, Jakovlić I, Zhang D, Chen R, Mahboob S, Al-Ghanim KA, Al-Misned F, Li WX, Wang GT. The complete mitochondrial genome of Cymothoa indica has a highly rearranged gene order and clusters at the very base of the Isopoda clade. PLoS One 2018; 13:e0203089. [PMID: 30180209 PMCID: PMC6122833 DOI: 10.1371/journal.pone.0203089] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 08/14/2018] [Indexed: 11/18/2022] Open
Abstract
As a result of great diversity in life histories and a large number of described species, taxonomic and phylogenetic uncertainty permeates the entire crustacean order of Isopoda. Large molecular datasets capable of providing sufficiently high phylogenetic resolution, such as mitochondrial genomes (mitogenomes), are needed to infer their evolutionary history with confidence, but isopod mitogenomes remain remarkably poorly represented in public databases. We sequenced the complete mitogenome of Cymothoa indica, a species belonging to a family from which no mitochondrial genome was sequenced yet, Cymothoidae. The mitogenome (circular, 14484 bp, A+T = 63.8%) is highly compact, appears to be missing two tRNA genes (trnI and trnE), and exhibits a unique gene order with a large number of rearrangements. High compactness and the existence of palindromes indicate that the mechanism behind these rearrangements might be associated with linearization events in its evolutionary history, similar to those proposed for isopods from the Armadillidium genus (Oniscidea). Isopods might present an important model system to study the proposed discontinuity in the dynamics of mitochondrial genomic architecture evolution. Phylogenetic analyses (Bayesian Inference and Maximum Likelihood) conducted using nucleotide sequences of all mitochondrial genes resolved Oniscidea and Cymothoida suborders as paraphyletic. Cymothoa indica was resolved as a sister group (basal) to all remaining isopods, which challenges the accepted isopod phylogeny, where Cymothoida are the most derived, and Phreatoicidea the most basal isopod group. There is growing evidence that Cymothoida suborder might be split into two evolutionary distant clades, with parasitic species being the most basal split in the Isopoda clade, but a much larger amount of molecular resources carrying a high phylogenetic resolution will be needed to infer the remarkably complex evolutionary history of this group of animals with confidence.
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Affiliation(s)
- Hong Zou
- Key Laboratory of Aquaculture Disease Control, Ministry of Agriculture, and State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, P. R. China
| | | | - Dong Zhang
- Key Laboratory of Aquaculture Disease Control, Ministry of Agriculture, and State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, P. R. China
- University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Rong Chen
- Bio-Transduction Lab, Biolake, Wuhan, P. R. China
| | - Shahid Mahboob
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
- Department of Zoology, GC University, Faisalabad, Pakistan
| | | | - Fahad Al-Misned
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Wen-Xiang Li
- Key Laboratory of Aquaculture Disease Control, Ministry of Agriculture, and State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, P. R. China
| | - Gui-Tang Wang
- Key Laboratory of Aquaculture Disease Control, Ministry of Agriculture, and State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, P. R. China
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Metwally DM, Qassim LE, Al-Turaiki IM, Almeer RS, El-Khadragy MF. Gene-based molecular analysis of COX1 in Echinococcus granulosus cysts isolated from naturally infected livestock in Riyadh, Saudi Arabia. PLoS One 2018; 13:e0195016. [PMID: 29668701 PMCID: PMC5905957 DOI: 10.1371/journal.pone.0195016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 03/15/2018] [Indexed: 11/28/2022] Open
Abstract
The diversity and importance of Echinococcus species in domesticated animals in Saudi Arabia are poorly understood. In this study, 108 singular (hydatid) cysts were collected from goats (n = 25), sheep (n = 56) and camels (n = 27). DNA was extracted from the protoscoleces of individual fertile cysts and used for polymerase chain reaction (PCR) amplification of mitochondrial subunit 1 of the cytochrome c oxidase 1 (cox1) gene. Amplicon sequencing results revealed the presence of Echinococcus granulosus sensustricto (s.s.) (genotypes G1–G3) in 16 of the17 sheep cysts and 2 of the 27 camel cysts.of these samples, 18 (2 camel and 16 sheep) were divided into genotypes G1, G2, and G3.
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Affiliation(s)
- Dina M. Metwally
- Zoology Department, Faculty of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
- Parasitology Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
- * E-mail:
| | - Latifa E. Qassim
- Zoology Department, Faculty of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Isra M. Al-Turaiki
- Information Technology Department, College of Computer and Information Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Rafa S. Almeer
- Zoology Department, Faculty of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Manal F. El-Khadragy
- Zoology Department, Faculty of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo, Egypt
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Aldawsari A, Khan MA, Hameed BH, Alqadami AA, Siddiqui MR, Alothman ZA, Ahmed AYBH. Mercerized mesoporous date pit activated carbon-A novel adsorbent to sequester potentially toxic divalent heavy metals from water. PLoS One 2017; 12:e0184493. [PMID: 28910368 PMCID: PMC5598982 DOI: 10.1371/journal.pone.0184493] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 08/24/2017] [Indexed: 11/18/2022] Open
Abstract
A substantive approach converting waste date pits to mercerized mesoporous date pit activated carbon (DPAC) and utilizing it in the removal of Cd(II), Cu(II), Pb(II), and Zn(II) was reported. In general, rapid heavy metals adsorption kinetics for Co range: 25-100 mg/L was observed, accomplishing 77-97% adsorption within 15 min, finally, attaining equilibrium in 360 min. Linear and non-linear isotherm studies revealed Langmuir model applicability for Cd(II) and Pb(II) adsorption, while Freundlich model was fitted to Zn(II) and Cu(II) adsorption. Maximum monolayer adsorption capacities (qm) for Cd(II), Pb(II), Cu(II), and Zn(II) obtained by non-linear isotherm model at 298 K were 212.1, 133.5, 194.4, and 111 mg/g, respectively. Kinetics modeling parameters showed the applicability of pseudo-second-order model. The activation energy (Ea) magnitude revealed physical nature of adsorption. Maximum elution of Cu(II) (81.6%), Zn(II) (70.1%), Pb(II) (96%), and Cd(II) (78.2%) were observed with 0.1 M HCl. Thermogravimetric analysis of DPAC showed a total weight loss (in two-stages) of 28.3%. Infra-red spectral analysis showed the presence of carboxyl and hydroxyl groups over DPAC surface. The peaks at 820, 825, 845 and 885 cm-1 attributed to Zn-O, Pb-O, Cd-O, and Cu-O appeared on heavy metals saturated DPAC, confirmed their binding on DPAC during the adsorption.
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Affiliation(s)
- Abdullah Aldawsari
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Moonis Ali Khan
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
- * E-mail: ,
| | - B. H. Hameed
- School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Penang, Malaysia
| | | | - Masoom Raza Siddiqui
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
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Arun M, Chinnathambi A, Subramanyam K, Karthik S, Sivanandhan G, Theboral J, Alharbi SA, Kim CK, Ganapathi A. Involvement of exogenous polyamines enhances regeneration and Agrobacterium-mediated genetic transformation in half-seeds of soybean. 3 Biotech 2016; 6:148. [PMID: 28330220 PMCID: PMC4925569 DOI: 10.1007/s13205-016-0448-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 05/31/2016] [Indexed: 10/31/2022] Open
Abstract
The present work demonstrates the participation of polyamines (PAs) to improve direct regeneration and Agrobacterium-mediated transformation in soybean half-seeds. The inclusion of PAs to culture medium along with optimal plant growth regulators (PGRs) enhanced shoot induction [98.3 %; 4.44 µM N6-benzyladenine (BA) and 103.27 µM spermidine] and elongation [90.0 %; 1.45 µM gibberellic acid (GA3) and 49.42 µM spermine]. The polyamine putrescine (62.08 µM) alone greatly enriched root induction (96.3 %). The influence of PAs on transformed plant production was assessed by comparing optimized protocol (comprising PAs and PGRs) with a regeneration system involving only PGRs. Plant transformation was performed in half-seeds of cultivar DS 97-12 using strain EHA105 harboring pCAMBIA1301. Transgene expression and integration was confirmed by GUS staining, PCR, and Southern hybridization. The transformed explants/materials successively cultured on co-cultivation (BA and spermidine), shoot induction (BA and spermidine), shoot elongation (GA3 and spermine), and rooting medium (putrescine) showed enhanced transformation efficiency (29.3 %) compared with its counterparts (14.6 %) with respective PGR alone [BA, GA3, or indole-3-butyric acid (IBA)]. Overall findings of the study suggest that involvement of PAs improved T-DNA transfer during co-cultivation, and delivered most suitable condition for efficient regeneration/survival, which led to enhanced transformation efficiency in soybean.
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Affiliation(s)
- Muthukrishnan Arun
- Department of Biotechnology and Genetic Engineering, School of Biotechnology, Bharathidasan University, Tiruchirappalli, Tamil Nadu, 620024, India
- Department of Horticultural Sciences, Kyungpook National University, Daegu, 702-701, South Korea
| | - Arunachalam Chinnathambi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Kondeti Subramanyam
- Department of Biotechnology and Genetic Engineering, School of Biotechnology, Bharathidasan University, Tiruchirappalli, Tamil Nadu, 620024, India
- Laboratory of Biochemistry and Glycobiology, Department of Molecular Biotechnology, Ghent University, Coupure links 653, 9000, Ghent, Belgium
| | - Sivabalan Karthik
- Department of Biotechnology and Genetic Engineering, School of Biotechnology, Bharathidasan University, Tiruchirappalli, Tamil Nadu, 620024, India
| | - Ganeshan Sivanandhan
- Department of Biotechnology and Genetic Engineering, School of Biotechnology, Bharathidasan University, Tiruchirappalli, Tamil Nadu, 620024, India
| | - Jeevaraj Theboral
- Department of Biotechnology and Genetic Engineering, School of Biotechnology, Bharathidasan University, Tiruchirappalli, Tamil Nadu, 620024, India
| | - Sulaiman Ali Alharbi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Chang Kil Kim
- Department of Horticultural Sciences, Kyungpook National University, Daegu, 702-701, South Korea
| | - Andy Ganapathi
- Department of Biotechnology and Genetic Engineering, School of Biotechnology, Bharathidasan University, Tiruchirappalli, Tamil Nadu, 620024, India.
- Bharathiar University, Coimbatore, Tamil Nadu, 641046, India.
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Zhang BH, Salam N, Cheng J, Li HQ, Yang JY, Zha DM, Zhang YQ, Ai MJ, Hozzein WN, Li WJ. Modestobacter lacusdianchii sp. nov., a Phosphate-Solubilizing Actinobacterium with Ability to Promote Microcystis Growth. PLoS One 2016; 11:e0161069. [PMID: 27537546 PMCID: PMC4990248 DOI: 10.1371/journal.pone.0161069] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 07/29/2016] [Indexed: 11/29/2022] Open
Abstract
A novel actinobacterium, designated strain JXJ CY 19T, was isolated from a culture mat of Microcystis aeruginosa FACHB-905 collected from Dianchi Lake, South-west China. 16S rRNA gene sequences comparison of strain JXJ CY 19T and the available sequences in the GenBank database showed that the strain was closely related to Modestobacter marinus 42H12-1T (99.1% similarity) and Modestobacter roseus KLBMP 1279T (99.0%). The isolate had meso-diaminopimelic in the cell wall with whole-cell sugars of mannose, rhamnose, ribose, glucose, galactose, and arabinose. The menaquinone detected was MK-9(H4), while the major cellular fatty acids include C17:1 ω8c, C15:0 iso, C15:1 iso G and C16:0 iso. The polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol, phosphatidylinositol mannoside and an unidentified phospholipid. The DNA-DNA hybridization values between strains JXJ CY 19T and the closely related type strains Modestobacter marinus CGMCC 4.5581T and Modestobacter roseus NBRC 108673T were determined to be 50.8 ± 0.8% and 44.1 ± 1.7%, respectively. The DNA G+C content was 71.9 mol%. On the basis of the above taxonomic data and differences in physiological characters from the closely related type strains, strain JXJ CY 19T was recognized as a novel species of the genus Modestobacter, for which the name Modestobacter lacusdianchii sp. nov. (JXJ CY 19T = KCTC 39600T = CPCC 204352T) is proposed. The type strain JXJ CY 19T can solubilize calcium phosphate tribasic (Ca3(PO4)2), phytin and L-α-phosphatidylcholine. The phosphate-solubilizing property of the novel actinobacterium could be a possible factor for the increase in growth of Microcystis aeruginosa FACHB-905 in ecosystem where the amount of available soluble phosphate is limited such as Dianchi Lake.
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Affiliation(s)
- Bing-Huo Zhang
- College of Life Science, Jiujiang University, Jiujiang, PR China
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou, PR China
| | - Nimaichand Salam
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou, PR China
| | - Juan Cheng
- College of Life Science, Jiujiang University, Jiujiang, PR China
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou, PR China
| | - Han-Quan Li
- College of Life Science, Jiujiang University, Jiujiang, PR China
| | - Jian-Yuan Yang
- College of Life Science, Jiujiang University, Jiujiang, PR China
| | - Dai-Ming Zha
- College of Life Science, Jiujiang University, Jiujiang, PR China
| | - Yu-Qin Zhang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China
| | - Meng-Jie Ai
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China
| | - Wael N. Hozzein
- Bioproducts Research Chair (BRC), Zoology Department, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
- Botany and Microbiology Department, Faculty of Science, Beni-Suef University, Beni-Suef, Eqypt
| | - Wen-Jun Li
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou, PR China
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Al-Salahi R, Abuelizz HA, Ghabbour HA, El-Dib R, Marzouk M. Molecular docking study and antiviral evaluation of 2-thioxo-benzo[g]quinazolin-4(3H)-one derivatives. Chem Cent J 2016; 10:21. [PMID: 27099618 PMCID: PMC4837545 DOI: 10.1186/s13065-016-0168-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 04/07/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The persistent appearance of viral strains that causes a resistant viral infection has led to continuous trials for the design and development of novel antiviral compounds. Benzoquinazoline compounds have been reported to exhibit an interesting antiviral activity. This work aims to study and evaluate the antiviral activity of a newly prepared 2-thioxo-benzo[g]quinazolin-4(3H)-one series against herpes simplex (HSV-1 & 2) and coxsackievirus (CVB4). METHODS The antiviral activity was performed using the MTT assay, in which Vero cells (obtained from the American Type Culture Collection, ATCC) were propagated in fresh Dulbecco's Modified Eagle's Medium (DMEM) and challenged with 10(4) doses of the virus. Thereafter, the cultures were treated simultaneously with two-fold serial dilutions of the tested compound and incubated at 37 °C for 48 h. Molecular docking studies were done on the CVB4 2A proteinase enzyme using Molegro Virtual Docker software. RESULTS The cytotoxicity (CC50), effective concentration (EC50) and the selectivity index (SI) values were determined. Based on their EC50 values, a number of the investigated compounds demonstrated weak to moderate activity relative to their parents. Accordingly, compounds 5-9, 11, 15-18, 21, 22, 24, 25, 27 and 28 were active against CVB4, and compounds 5 and 24 were active against HSV-1 and 2 in comparison to ribavirin and acyclovir, which were used as reference drugs. CONCLUSION The obtained results gave us some useful insights about the characteristic requirements for future trials to build up and design more active and selective antiviral 2-thioxo-benzo[g]quinazolin-4(3H)-one agents.Graphical abstractCompound 24 superimposed with Ribavirin in CV B4 2A Proteinase enzyme (PDB: 1Z8R) active site.
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Affiliation(s)
- Rashad Al-Salahi
- />Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh, 11451 Saudi Arabia
| | - Hatem A. Abuelizz
- />Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh, 11451 Saudi Arabia
| | - Hazem A. Ghabbour
- />Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh, 11451 Saudi Arabia
| | - Rabab El-Dib
- />Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 22452, Riyadh, 11495 Saudi Arabia
- />Department of Pharmacognosy, Faculty of Pharmacy, Helwan University, Cairo, 11795 Egypt
| | - Mohamed Marzouk
- />Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh, 11451 Saudi Arabia
- />Chemistry of Natural Products Group, Center of Excellence for Advanced Sciences, National Research Center, Dokki, Cairo, 12622 Egypt
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