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Ali G, Deeba F, Rashid U, Ullah A, Ullah H, Khan IA, Khan SI, Badshah A, Khan MA, Ayaz M, Daglia M. In vivo effects of a selected thiourea derivative 1-(2-chlorobenzoyl)-3-(2,3-dichlorophenyl) against nociception, inflammation and gastric ulcerogenicity: Biochemical, histopathological and in silico approaches. Biomed Pharmacother 2024; 174:116544. [PMID: 38599058 DOI: 10.1016/j.biopha.2024.116544] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 04/03/2024] [Accepted: 04/04/2024] [Indexed: 04/12/2024] Open
Abstract
The current study was designed to investigate the potential of a synthetic therapeutic agent for better management of pain and inflammation, exhibiting minimal to non-existent ulcerogenic effects. The effect of 1-(2-chlorobenzoyl)-3-(2,3-dichlorophenyl) thiourea was assessed through model systems of nociception and anti-inflammatory activities in mice. In addition, the ulcerogenic potential was evaluated in rats using the NSAID-induced pyloric ligation model, followed by histopathological and biochemical analysis. The test was conducted on eight groups of albino rats, comprising of group I (normal saline), groups II and III (aspirin® at doses of 100 mg/kg and 150 mg/kg, respectively), groups IV and V (indomethacin at doses of 100 mg/kg and 150 mg/kg, respectively), and groups VI, VII, and VIII (lead-compound at 15 mg/kg, 30 mg/kg and 45 mg/kg doses, respectively). Furthermore, molecular docking analyses were performed to predict potential molecular target site interactions. The results showed that the lead-compound, administered at doses of 15, 30, and 45 mg/kg, yielded significant reductions in chemically and thermally induced nociceptive pain, aligning with the levels observed for aspirin® and tramadol. The compound also effectively suppressed inflammatory response in the carrageenan-induced paw edema model. As for the ulcerogenic effects, the compound groups displayed no considerable alterations compared to the aspirin® and indomethacin groups, which displayed substantial increases in ulcer scores, total acidity, free acidity, and gastric juice volume, and a decrease in gastric juice pH. In conclusion, these findings suggest that our test compound exhibits potent antinociceptive, anti-inflammatory properties and is devoid of ulcerogenic effects.
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Affiliation(s)
- Gowhar Ali
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan.
| | - Farrah Deeba
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan
| | - Umer Rashid
- Department of Chemistry, COMSATS University Islamabad, Abbottabad 22060, Pakistan
| | - Aman Ullah
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan
| | - Hammad Ullah
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, Naples 80131, Italy.
| | - Inayat Ali Khan
- Department of Chemistry, School of Natural Sciences (SNS), National University of Sciences and Technology (NUST), H-12 Campus, Islamabad 44000, Pakistan
| | - Syed Ishtiaq Khan
- Superintending Chemist, Geological Survey of Pakistan, Sariab Road, Quetta 87550, Pakistan
| | - Amin Badshah
- Department of Chemistry, Quaid-e-Azam University Islamabad, 45320, Pakistan
| | - Muhammad Arif Khan
- Department of Pharmacy, University of Malakand, Dir (L), Chakdara, Khyber Pakhtunkhwa 18000, Pakistan
| | - Muhammad Ayaz
- Department of Pharmacy, University of Malakand, Dir (L), Chakdara, Khyber Pakhtunkhwa 18000, Pakistan.
| | - Maria Daglia
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, Naples 80131, Italy; International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang 212013, China
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Liu S, Zheng Y, Zhao L, Gulam M, Ullah A, Xie G. CALMODULIN-LIKE16 and PIN-LIKES7a cooperatively regulate rice seedling primary root elongation under chilling. Plant Physiol 2024:kiae130. [PMID: 38445796 DOI: 10.1093/plphys/kiae130] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 11/29/2023] [Accepted: 12/21/2023] [Indexed: 03/07/2024]
Abstract
Low-temperature sensitivity at the germination stage is a challenge for direct seeding of rice in Asian countries. How Ca2+ and IAA signaling regulate primary root growth under chilling remains unexplored. Here, we showed that OsCML16 interacted specifically with OsPILS7a to improve primary root elongation of early rice seedlings under chilling. OsCML16, a subgroup 6c member of the OsCML family, interacted with multiple cytosolic loop regions of OsPILS7a in a Ca2+-dependent manner. OsPILS7a localized to the ER membranes and functioned as an auxin efflux carrier in a yeast growth assay. Transgenics showed that presence of OsCML16 enhanced primary root elongation under chilling, whereas the ospils7a knockout mutant lines showed the opposite phenotype. Moreover, under chilling conditions, OsCML16 and OsPILS7a mediated Ca2+ and IAA signaling and regulated the transcription of IAA signaling-associated genes (OsIAA11, OsIAA23, and OsARF16) and cell division marker genes (OsRAN1, OsRAN2, and OsLTG1) in primary roots. These results show that OsCML16 and OsPILS7a cooperatively regulate primary root elongation of early rice seedlings under chilling. These findings enhance our understanding of the crosstalk between Ca2+ and IAA signaling and reveal insights into the mechanisms underlying cold-stress response during rice germination.
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Affiliation(s)
- Shuang Liu
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River; College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yuying Zheng
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River; College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Liyan Zhao
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River; College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Mihray Gulam
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River; College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Aman Ullah
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River; College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Guosheng Xie
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River; College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
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Upadhyay P, Ullah A. Enhancement of mechanical and barrier properties of chitosan-based bionanocomposites films reinforced with eggshell-derived hydroxyapatite nanoparticles. Int J Biol Macromol 2024; 261:129764. [PMID: 38296144 DOI: 10.1016/j.ijbiomac.2024.129764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 01/18/2024] [Accepted: 01/24/2024] [Indexed: 02/08/2024]
Abstract
In this study, Hydroxyapatite nanoparticles (HANPs), derived from eggshell waste, were employed to reinforce chitosan biopolymer-based films through the solvent-casting method. The impact of varying HANPs content (1%, 3%, 5%, and 10 wt %) in bionanocomposites was investigated. The influence of HANPs addition on the final film properties was comprehensively analyzed using Thermogravimetric Analysis (TGA), Differential Scanning Calorimetry (DSC), Dynamic Mechanical Analysis (DMA), mechanical (tensile) testing, and Water Vapor Permeability (WVP). The morphological aspects of bionanocomposites and the dispersion of nanoparticles within the matrix were studied using Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), and X-ray Diffraction (XRD). The structural changes in the films were probed using Fourier-Transform Infrared Spectroscopy (FTIR) and X-ray Photoelectron Spectroscopy (XPS) techniques. Results indicated that the addition of 1% and 3% of HANPs exhibited a higher glass transition temperature and improved thermal stability in bionanocomposites. Films with 3% HANPs content exhibited a notable increase in tensile strength, showing a 61.54% increase, while films with 1% HANPs content displayed a 52% reduction in WVP compared to pristine chitosan films. These findings underscore the significant potential of chitosan-hydroxyapatite bionanocomposite films for applications in food packaging applications.
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Affiliation(s)
- Punita Upadhyay
- Department of Agricultural, Food, and Nutritional Science, 360C South Academic Building, University of Alberta, Edmonton, Alberta T6G 2G7, Canada
| | - Aman Ullah
- Department of Agricultural, Food, and Nutritional Science, 360C South Academic Building, University of Alberta, Edmonton, Alberta T6G 2G7, Canada.
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Khan RU, Almakdi S, Alshehri M, Haq AU, Ullah A, Kumar R. An intelligent neural network model to detect red blood cells for various blood structure classification in microscopic medical images. Heliyon 2024; 10:e26149. [PMID: 38384569 PMCID: PMC10879026 DOI: 10.1016/j.heliyon.2024.e26149] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 01/28/2024] [Accepted: 02/08/2024] [Indexed: 02/23/2024] Open
Abstract
Biomedical image analysis plays a crucial role in enabling high-performing imaging and various clinical applications. For the proper diagnosis of blood diseases related to red blood cells, red blood cells must be accurately identified and categorized. Manual analysis is time-consuming and prone to mistakes. Analyzing multi-label samples, which contain clusters of cells, is challenging due to difficulties in separating individual cells, such as touching or overlapping cells. High-performance biomedical imaging and several medical applications are made possible by advanced biosensors. We develop an intelligent neural network model that can automatically identify and categorize red blood cells from microscopic medical images using region-based convolutional neural networks (RCNN) and cutting-edge biosensors. Our model successfully navigates obstacles like touching or overlapping cells and accurately recognizes various blood structures. Additionally, we utilized data augmentation as a pre-processing method on microscopic images to enhance the model's computational efficiency and expand the sample size. To refine the data and eliminate noise from the dataset, we utilized the Radial Gradient Index filtering algorithm for imaging data equalization. We exhibit improved detection accuracy and a reduced model loss rate when using medical imagery datasets to apply our proposed model in comparison to existing ResNet and GoogleNet models. Our model precisely detected red blood cells in a collection of medical images with 99% training accuracy and 91.21% testing accuracy. Our proposed model outperformed earlier models like ResNet-50 and GoogleNet by 10-15%. Our results demonstrated that Artificial intelligence (AI)-assisted automated red blood cell detection has the potential to revolutionize and speed up blood cell analysis, minimizing human error and enabling early illness diagnosis.
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Affiliation(s)
- Riaz Ullah Khan
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China
| | - Sultan Almakdi
- Department of Computer Science, College of Computer Science and Information systems, Najran University, Najran 55461, Saudi Arabia
| | - Mohammed Alshehri
- Department of Computer Science, College of Computer Science and Information systems, Najran University, Najran 55461, Saudi Arabia
| | - Amin Ul Haq
- School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Aman Ullah
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China
| | - Rajesh Kumar
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China
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Rathor P, Upadhyay P, Ullah A, Gorim LY, Thilakarathna MS. Humic acid improves wheat growth by modulating auxin and cytokinin biosynthesis pathways. AoB Plants 2024; 16:plae018. [PMID: 38601216 PMCID: PMC11005776 DOI: 10.1093/aobpla/plae018] [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] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 03/22/2024] [Indexed: 04/12/2024]
Abstract
Humic acids have been widely used for centuries to enhance plant growth and productivity. The beneficial effects of humic acids have been attributed to different functional groups and phytohormone-like compounds enclosed in macrostructure. However, the mechanisms underlying the plant growth-promoting effects of humic acids are only partially understood. We hypothesize that the bio-stimulatory effect of humic acids is mainly due to the modulation of innate pathways of auxin and cytokinin biosynthesis in treated plants. A physiological investigation along with molecular characterization was carried out to understand the mechanism of bio-stimulatory effects of humic acid. A gene expression analysis was performed for the genes involved in auxin and cytokinin biosynthesis pathways in wheat seedlings. Furthermore, Arabidopsis thaliana transgenic lines generated by fusing the auxin-responsive DR5 and cytokinin-responsive ARR5 promoter to ß-glucuronidase (GUS) reporter were used to study the GUS expression analysis in humic acid treated seedlings. This study demonstrates that humic acid treatment improved the shoot and root growth of wheat seedlings. The expression of several genes involved in auxin (Tryptophan Aminotransferase of Arabidopsis and Gretchen Hagen 3.2) and cytokinin (Lonely Guy3) biosynthesis pathways were up-regulated in humic acid-treated seedlings compared to the control. Furthermore, GUS expression analysis showed that bioactive compounds of humic acid stimulate endogenous auxin and cytokinin-like activities. This study is the first report in which using ARR5:GUS lines we demonstrate the biostimulants activity of humic acid.
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Affiliation(s)
- Pramod Rathor
- Department of Agricultural, Food and Nutritional Science, Agriculture/Forestry Centre, University of Alberta, 9011-116St, NW, Edmonton, AB T6G 2P5, Canada
| | - Punita Upadhyay
- Department of Agricultural, Food and Nutritional Science, Agriculture/Forestry Centre, University of Alberta, 9011-116St, NW, Edmonton, AB T6G 2P5, Canada
| | - Aman Ullah
- Department of Agricultural, Food and Nutritional Science, Agriculture/Forestry Centre, University of Alberta, 9011-116St, NW, Edmonton, AB T6G 2P5, Canada
| | - Linda Yuya Gorim
- Department of Agricultural, Food and Nutritional Science, Agriculture/Forestry Centre, University of Alberta, 9011-116St, NW, Edmonton, AB T6G 2P5, Canada
| | - Malinda S Thilakarathna
- Department of Agricultural, Food and Nutritional Science, Agriculture/Forestry Centre, University of Alberta, 9011-116St, NW, Edmonton, AB T6G 2P5, Canada
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Aziz MA, Hassan M, Ullah A, Ullah Z, Sõukand R, Pieroni A. Keeping their own and integrating the other: medicinal plant use among Ormurs and Pathans in South Waziristan, Pakistan. J Ethnobiol Ethnomed 2023; 19:62. [PMID: 38105177 PMCID: PMC10725595 DOI: 10.1186/s13002-023-00634-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Accepted: 11/29/2023] [Indexed: 12/19/2023]
Abstract
BACKGROUND In multicultural societies, traditional knowledge among minorities faces several challenges. Minority groups often face difficult situations living in specific peripheral geographies and striving to retain their biocultural heritage, including medicinal plant knowledge and practices. Folk medicinal plant knowledge is a dynamic eco-cultural complex influenced by various environmental, socio-cultural, and political factors. Examining medicinal plant knowledge among minorities has been an increasingly popular topic in cross-cultural ethnobiology. It also helps understand the dynamics of local/traditional ecological knowledge (LEK/TEK) change within a given community. The current study was designed to investigate the status of medicinal plant knowledge among two linguistic groups, i.e. Ormurs and Pathans, living in a remote valley of West Pakistan. METHODS We recruited 70 male study participants from the studied groups for semi-structured interviews to record the medicinal plant use of their communities. Data were compared among the two studied communities using the stacked charts employing the presence or absence of data with Past 4.03 and Venn diagrams. Use reports (URs) were counted for each recorded taxon. RESULTS AND DISCUSSION A total of seventy-four medicinal plants were quoted as used as ethnomedicines by the researched communities. Most of the reported plants were used to treat digestive and liver problems. The cross-cultural comparison revealed a considerable homogeneity of medicinal plant knowledge (the two groups commonly used more than seventy plants); however, comparing uses recorded for the widely utilised medicinal plants showed numerous idiosyncratic uses among Ormurs but very few among Pathans. Ormurs reported a higher number of cultivated, wild, and imported plant uses than did Pathans. These results indicate that, compared to Pathans, the Ormur linguistic minority retain more folk medicinal plant knowledge, which may be explained by the fact that they have incorporated different folk remedies: their "own knowledge" plus that of Pathans, with whom they have lived together for centuries. Moreover, the local plant nomenclature among Ormurs was highly affected by the plant nomenclature of Pathans. CONCLUSION The current study revealed that living together for a few centuries has not implied sharing plant knowledge (as the Pathans do not seem to have learnt from the Ormurs) or, in other words, that plant knowledge exchanges have been unidirectional. The findings show that the Pashto dominant culture may have possibly put pressure on the minority groups and affected local plant-centred cultural practices, as we see in the case of local plant nomenclature hybridisation among Omuri speakers. Hence, it is imperative to employ diverse educational strategies to revitalise the decline of medicinal plant knowledge in the studied communities, especially among Ormurs, who need more attention as they face more challenges than the other group. Locally based strategies should be devised to restore the fading connection with nature, which will be advantageous for revitalising plant knowledge.
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Affiliation(s)
- Muhammad Abdul Aziz
- Department of Environmental Sciences, Informatics and Statistics, Ca'Foscari University of Venice, Via Torino 155, 30172, Venice, Italy.
- University of Gastronomic Sciences, Piazza Vittorio Emanuele II 9 Bra, 12042, Pollenzo, Italy.
| | - Musheerul Hassan
- Department of Ethnobotany, Institute of Botany, Ilia State University, 0105, Tbilisi, Georgia
- Department of Zoology, Alpine Institute of Management and Technology, Dehradun, Uttarakhand, 248007, India
| | - Aman Ullah
- Faculty of Education and Social Sciences, Shaheed Zulfikar Ali Bhutto Institute of Science and Technology, Karachi, Pakistan
| | - Zahid Ullah
- Center for Plant Sciences and Biodiversity, University of Swat, Kanju, 19201, Pakistan
| | - Renata Sõukand
- Department of Environmental Sciences, Informatics and Statistics, Ca'Foscari University of Venice, Via Torino 155, 30172, Venice, Italy
| | - Andrea Pieroni
- University of Gastronomic Sciences, Piazza Vittorio Emanuele II 9 Bra, 12042, Pollenzo, Italy
- Department of Medical Analysis, Tishk International University, Erbil, Kurdistan, 4401, Iraq
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Iqbal Y, Ahmed I, Irfan MF, Chatha SAS, Zubair M, Ullah A. Recent advances in chitosan-based materials; The synthesis, modifications and biomedical applications. Carbohydr Polym 2023; 321:121318. [PMID: 37739510 DOI: 10.1016/j.carbpol.2023.121318] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/18/2023] [Accepted: 08/19/2023] [Indexed: 09/24/2023]
Abstract
The attention to polymer-based biomaterials, for instance, chitosan and its derivatives, as well as the techniques for using them in numerous scientific domains, is continuously rising. Chitosan is a decomposable naturally occurring polymeric material that is mostly obtained from seafood waste. Because of its special ecofriendly, biocompatible, non- toxic nature as well as antimicrobial properties, chitosan-based materials have received a lot of interest in the field of biomedical applications. The reactivity of chitosan is mainly because of the amino and hydroxyl groups in its composition, which makes it further fascinating for various uses, including biosensing, textile finishing, antimicrobial wound dressing, tissue engineering, bioimaging, gene, DNA and drug delivery and as a coating material for medical implants. This study is an overview of the different types of chitosan-based materials which now a days have been fabricated by applying different techniques and modifications that include etherification, esterification, crosslinking, graft copolymerization and o-acetylation etc. for hydroxyl groups' processes and acetylation, quaternization, Schiff's base reaction, and grafting for amino groups' reactions. Furthermore, this overview summarizes the literature from recent years related to the important applications of chitosan-based materials (i.e., thin films, nanocomposites or nanoparticles, sponges and hydrogels) in different biomedical applications.
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Affiliation(s)
- Yasir Iqbal
- Lipid Utilization, Polymers/Materials Chemistry Group, Department of Agriculture Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada; Department of Chemistry, Government College University Faisalabad, 38000, Pakistan
| | - Iqbal Ahmed
- Department of Chemistry, Government College University Faisalabad, 38000, Pakistan
| | - Muhammad Faisal Irfan
- Lipid Utilization, Polymers/Materials Chemistry Group, Department of Agriculture Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada
| | | | - Muhammad Zubair
- Lipid Utilization, Polymers/Materials Chemistry Group, Department of Agriculture Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada
| | - Aman Ullah
- Lipid Utilization, Polymers/Materials Chemistry Group, Department of Agriculture Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada.
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Sandhu M, Irfan HM, Arshad L, Ullah A, Shah SA, Ali H. Friedelin and Glutinol induce neuroprotection against ethanol induced neurotoxicity in pup's brain through reduction of TNF-α, NF-kB, caspase-3 and PARP-1. Neurotoxicology 2023; 99:274-281. [PMID: 37939858 DOI: 10.1016/j.neuro.2023.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 09/12/2023] [Accepted: 11/05/2023] [Indexed: 11/10/2023]
Abstract
Ethanol administration triggers an inflammatory response that leads to a complex series of immune responses including the release of an excessive amount of inflammatory mediators particularly tumor necrosis factor (TNF-α) and nuclear factor-kB (NF-KB) which produce a large amount of reactive oxygen species. The inflammatory-induced cytotoxicity is increased when the PI3-kinase/Akt pathway is inhibited. Some studies have also shown that ethanol suppresses the PI3-kinase signaling pathway induced by receptor activation. Friedelin and Glutinol belong to pentacyclic triterpenoid class and are known for their anti-inflammatory and antioxidant properties. The present study was aimed to elucidate the effects of these phytoconstituents on one of the key ethanol-induced neuronal damage pathways. The pups having (5-7 g average body weight) were used and randomly divided into groups. The control and ethanol treated pups were administered 0.9% normal saline while treated pups received glutinol and friedelin (30 mg/kg subcutaneously) respectively. After four hours all the experimental animals were sacrificed and their brains were collected carefully for protein expression analysis of p-Akt, TNF-α, NF-KB, caspase-3 and PARP-1 employing immunoblotting technique. Hemolytic, DNA protection, chelating power and β-carotene assays results revealed that freidelin and glutinol are safe for parenteral administration. Glutinol administration with ethanol significantly abridged the ethanol induced over expression of TNF-α, caspase-3 and PARP-1 in pup's brain. Similarly, freidelin attenuated the neurodegeneration by inhibiting the ethanol induced p-JNK and NF-kB expression in pups' brain. This protection may be attributed to the revival of p-Akt signaling for cell survival. It is concluded that the present study demonstrates the neuro-protective effects of friedelin and glutinol via modulating the capase-3 and PARP-1 expression and modulating the neuronal apoptotic pathways.
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Affiliation(s)
- Marva Sandhu
- College of pharmacy, University of Sargodha, Sargodha, Pakistan; Drugs control and traditional medicines division, NIH Islamabad, Pakistan
| | | | - Laiba Arshad
- Department of Pharmacy, Forman Christian College (A Chartered University), Ferozpur Road Lahore, Pakistan
| | - Aman Ullah
- Department of Pharmacy, Saba Medical Center, P.O. Box 20316, Abu Dhabi, United Arab Emirates
| | - Shahid Ali Shah
- Department of Biology, The University of Haripur, Pakistan; Neuro Molecular Medicines Research Center (NMMRC), Peshawar, Pakistan
| | - Hussain Ali
- Drugs control and traditional medicines division, NIH Islamabad, Pakistan
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Ullah A, Khan S, Khamjalas K, Ahmad M, Hassan A, Uddin I. Environmental regulation, renewable electricity, industrialization, economic complexity, technological innovation, and sustainable environment: testing the N-shaped EKC hypothesis for the G-10 economies. Environ Sci Pollut Res Int 2023; 30:99713-99734. [PMID: 37620693 DOI: 10.1007/s11356-023-29188-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 08/01/2023] [Indexed: 08/26/2023]
Abstract
This study examines the validity of the environmental Kuznets curve (EKC) hypothesis and the role of environmental regulation, renewable electricity, industrialization, economic complexity, and technological innovation in sustainable environment for the G-10 economies, namely, Belgium, Canada, Germany, Italy, Japan, Netherlands, Sweden, Switzerland, the United Kingdom, and the USA, from 1994 to 2020. We employed CS-ARDL (cross-sectional augmented distributed lag (CS-ARDL), FMOLS (fully modified ordinary least squares), and DOLS (dynamic ordinary least squares) for the analysis of the data. The estimates confirm the N-shaped EKC hypothesis between the GDP and CO2 emission. Moreover, the long-run estimates exhibit that environmental tax, renewable electricity, economic complexity, and technological innovation have negative effect on CO2 emission, while GDP, industrialization and arable land have positive effect on CO2 emission. Based on these findings, we propose that governments must implement large-scale government plans and initiatives to encourage the development of environmentally friendly technologies and ideas based on renewable energy. Moreover, further growing renewable energy, environmental policies like a carbon tax, investments in green technologies, subsidies, and rewards for renewable energy infrastructure investment should be taken into account.
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Affiliation(s)
- Aman Ullah
- School of Economics and Trade, Hunan University, Changsha, Hunan, China
| | - Saeedullah Khan
- School of Economics and Trade, Hunan University, Changsha, Hunan, China.
| | - Khambai Khamjalas
- School of Economics and Trade, Hunan University, Changsha, Hunan, China
| | - Mahtab Ahmad
- School of Economics and Trade, Hunan University, Changsha, Hunan, China
| | - Ali Hassan
- School of Economics and Trade, Hunan University, Changsha, Hunan, China
| | - Ijaz Uddin
- Department of Economics, Abdul Wali Khan University, Mardan, Khyber Pakhtunkhwa, Pakistan
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Alvarez JAE, Jafri MS, Ullah A. Local Control Model of a Human Ventricular Myocyte: An Exploration of Frequency-Dependent Changes and Calcium Sparks. Biomolecules 2023; 13:1259. [PMID: 37627324 PMCID: PMC10452762 DOI: 10.3390/biom13081259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/07/2023] [Accepted: 08/15/2023] [Indexed: 08/27/2023] Open
Abstract
Calcium (Ca2+) sparks are the elementary events of excitation-contraction coupling, yet they are not explicitly represented in human ventricular myocyte models. A stochastic ventricular cardiomyocyte human model that adapts to intracellular Ca2+ ([Ca2+]i) dynamics, spark regulation, and frequency-dependent changes in the form of locally controlled Ca2+ release was developed. The 20,000 CRUs in this model are composed of 9 individual LCCs and 49 RyRs that function as couplons. The simulated action potential duration at 1 Hz steady-state pacing is ~0.280 s similar to human ventricular cell recordings. Rate-dependence experiments reveal that APD shortening mechanisms are largely contributed by the L-type calcium channel inactivation, RyR open fraction, and [Ca2+]myo concentrations. The dynamic slow-rapid-slow pacing protocol shows that RyR open probability during high pacing frequency (2.5 Hz) switches to an adapted "nonconducting" form of Ca2+-dependent transition state. The predicted force was also observed to be increased in high pacing, but the SR Ca2+ fractional release was lower due to the smaller difference between diastolic and systolic [Ca2+]SR. Restitution analysis through the S1S2 protocol and increased LCC Ca2+-dependent activation rate show that the duration of LCC opening helps modulate its effects on the APD restitution at different diastolic intervals. Ultimately, a longer duration of calcium sparks was observed in relation to the SR Ca2+ loading at high pacing rates. Overall, this study demonstrates the spontaneous Ca2+ release events and ion channel responses throughout various stimuli.
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Affiliation(s)
| | - M. Saleet Jafri
- School of Systems Biology, George Mason University, Fairfax, VA 22030, USA;
- Center for Biomedical Engineering and Technology, University of Maryland School of Medicine, Baltimore, MD 20201, USA
| | - Aman Ullah
- School of Systems Biology, George Mason University, Fairfax, VA 22030, USA;
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11
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Chan TC, Ullah A, Roy B, Chang SL. Finite element analysis and structure optimization of a gantry-type high-precision machine tool. Sci Rep 2023; 13:13006. [PMID: 37563284 PMCID: PMC10415275 DOI: 10.1038/s41598-023-40214-5] [Citation(s) in RCA: 2] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 08/07/2023] [Indexed: 08/12/2023] Open
Abstract
The high-precision machine tool's dynamic, static, and rigid nature directly affects the machining efficiency and surface quality. Static and dynamic analyses are essential for the design and improvement of precision machine to ensure good tool performance under difficult and demanding machining conditions. In this study, the performance of a high-precision machine tool was analyzed using its virtual model created using CAD. Static and model analysis using ANSYS Workbench software was conducted to establish the tool's static deformation and static stiffness. Furthermore, the static and dynamic characteristics of the tool were explored using a finite element modeling approach to study their performance. In particular, the structure, static force, modal, frequency spectrum, and topology optimization of machine tools were primarily analyzed. Using model analysis, we found the first four different frequencies (22.5, 28.9, 40.6, and 47.4 Hz) and vibration type, which suggested of a weak link. Further static structural analysis revealed that the deformation of the spindle was 67.26 μm. An experimental static rigidity analysis was performed, and the experimental deformation values of the tool and spindle were obtained. The static and dynamic characteristics, as well as the accuracy and efficiency of the finite element model, were verified by comparing the data with the finite element analysis (FEA) results. Subsequently, we modified the settings and analysis model to ensure that the analysis results were consistent with the experimental findings. The error between the two results was within 1.56%. For an applied load of 5000 N on the spindle nose, the tool nose transient response was 0.5 s based on transient analysis. Under the condition that the structural deformation is as constant as possible, the lightweight structure may achieve the minimum weight and enhance the natural frequency; thus, the ideal structure will be obtained, and finite element analysis will then be performed. The optimal conditions for topology optimization include a lightweight structure, reduced structural deformation, and increased natural frequency of the structure. The developed method improves structural optimization, increases the ability of the product to be manufactured, and offers designers a variety of price-effective options.
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Affiliation(s)
- Tzu-Chi Chan
- Department of Mechanical and Computer-Aided Engineering, National Formosa University, Yunlin County, 632, Taiwan, R.O.C
| | - Aman Ullah
- Department of Power Mechanical Engineering, National Formosa University, Yunlin County, 632, Taiwan, R.O.C..
| | - Bedanta Roy
- Department of Mechanical and Computer-Aided Engineering, National Formosa University, Yunlin County, 632, Taiwan, R.O.C
| | - Shinn-Liang Chang
- Department of Power Mechanical Engineering, National Formosa University, Yunlin County, 632, Taiwan, R.O.C
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12
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Ahmad S, Ullah A, Ullah A, Van Hoa N. Fuzzy natural transform method for solving fuzzy differential equations. Soft comput 2023; 27:8611-8625. [DOI: 10.1007/s00500-023-08194-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/03/2023] [Indexed: 09/01/2023]
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13
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Zahara I, Irfan MF, Zubair M, Siddique T, Ullah A. Removal of divalent cations and oxyanions by keratin-derived sorbents: Influence of process parameters and mechanistic studies. Sci Total Environ 2023:164288. [PMID: 37211135 DOI: 10.1016/j.scitotenv.2023.164288] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 05/15/2023] [Accepted: 05/15/2023] [Indexed: 05/23/2023]
Abstract
Keratin has become a promising adsorbing material for the removal of heavy metals from polluted water due to its environmentally benign nature, unique chemical structure, and binding ability. We developed keratin biopolymers (KBP-I, KBP-IV, KBP-V) using chicken feathers, and assessed their adsorption performance against metal-containing synthetic wastewater at varying temperatures, contact times, and pH. Initially, a multi-metal synthetic wastewater (MMSW) containing cations (Cd2+, Co2+, Ni2+) and oxyanions (CrVI, AsIII, VV) was incubated with each KBP under different sets of conditions. Temperature results exhibited that KBP-I, KBP-IV and KBP-V showed higher metals adsorption at 30 °C and 45 °C, respectively. However, the adsorption equilibrium was achieved for selective metals within 1 h of incubation time for all KBPs. For pH, no significant difference was observed in adsorption in MMSW due to buffering of pH by KBPs. To minimize buffering, KBP-IV and KBP-V were tested further for single-metal synthetic wastewater at two different pHs i.e. 5.5 and 8.5. KBP-IV and KBP-V were selected due to their buffering capacities and high adsorption abilities for oxyanions (pH 5.5) and divalent cations (pH 8.5), respectively indicating that chemical modifications changed and enhanced the functional groups of the keratin. X-ray Photoelectron Spectroscopy analysis was performed to demonstrate the adsorption mechanism (complexation/chelation, electrostatic attraction, or chemical reduction) for the removal of divalent cations and oxyanions by KBPs from MMSW. Furthermore, KBPs exhibited adsorption behavior for Ni2+ (qm = 2.2 mg g-1), Cd2+ (qm = 2.4 mg g-1), and CrVI (qm = 2.8 mg g-1) best described by Langmuir model with the coefficient of determination (R2) values >0.95 while AsIII (KF = 6.4 L/g) was fitted well to the Freundlich model with R2 value >0.98. Based on these findings, we anticipate that keratin adsorbents have the potential to employ at a large scale for water remediation.
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Affiliation(s)
- Irum Zahara
- Department of Renewable Resources, University of Alberta, Edmonton, AB T6G 2E3, Canada; Department of Agriculture Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada
| | - Muhammad Faisal Irfan
- Department of Renewable Resources, University of Alberta, Edmonton, AB T6G 2E3, Canada; Department of Agriculture Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada
| | - Muhammad Zubair
- Department of Agriculture Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada
| | - Tariq Siddique
- Department of Renewable Resources, University of Alberta, Edmonton, AB T6G 2E3, Canada.
| | - Aman Ullah
- Department of Agriculture Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada.
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Zubair M, Zahara I, Roopesh MS, Ullah A. Chemically cross-linked keratin and nanochitosan based sorbents for heavy metals remediation. Int J Biol Macromol 2023; 241:124446. [PMID: 37088187 DOI: 10.1016/j.ijbiomac.2023.124446] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 04/04/2023] [Accepted: 04/10/2023] [Indexed: 04/25/2023]
Abstract
Biosorbents for water remediation were prepared using keratin biopolymer cross-linked with nanochitosan (NC). Keratin proteins were dissolved using reducing agents and NC was incorporated with concentrations of 1, 3 and 5 % individually into the keratin solution. The mixtures were thermally treated at 75°C overnight, which promoted the formation of ester bonds between the hydroxyl groups of nanochitosan and the carboxylic groups of the keratin biopolymer. The resulting keratin derived biosorbents were characterized by X-Ray photoelectron spectroscopy, confirming the cross-linking between keratin and nanochitosan. The chicken feathers keratin (CFK) surface modifications with nanochitosan were examined with Brunauer-Emmett-Teller, scanning and transmission electron microscopies. The sorption capacity of biosorbents was tested for eight different metals simultaneously at different contact times (15, 30, 60, 120, 240, 280 mins) and pH (5.5, 7.5 and 8.5), including arsenic, selenium, chromium, nickel, cobalt, lead, cadmium and zinc, using simulated industrial wastewater water containing 600 μg L-1 concentration of each metal. The synthesized environmentally benign biosorbents exhibited biosorption of metals upto 98 % at pH 7.5 and a contact time of 24 h, showing their potential for industrial wastewater remediation.
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Affiliation(s)
- Muhammad Zubair
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G 2P5, Canada
| | - Irum Zahara
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G 2P5, Canada
| | - M S Roopesh
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G 2P5, Canada
| | - Aman Ullah
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G 2P5, Canada.
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15
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Ullah A, Ullah A, Ahmad S, Van Hoa N. Fuzzy Yang transform for second order fuzzy differential equations of integer and fractional order. Phys Scr 2023; 98:044003. [DOI: 10.1088/1402-4896/acbf89] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Abstract
In this work, a Laplace-like transform in a fuzzy environment called Yang transform is introduced to solve fuzzy differential equations (FDEs) with the order θ ∈ (1, 2] involving the Caputo fractional derivative in the sense of gH-differentiability. Some basic properties of Yang transform for integer and fractional derivatives are also provided. Furthermore, by utilizing the combination between the Adomian decomposition method (ADM) and the Yang transform method, a general algorithm called the hybrid Yang transform method (HYTM) to solve the solutions of FDEs in the nonlinear form is proposed. For the validity and accuracy of this novel method, some examples and their simulations are given.
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16
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Zahra N, Hafeez MB, Wahid A, Al Masruri MH, Ullah A, Siddique KHM, Farooq M. Impact of climate change on wheat grain composition and quality. J Sci Food Agric 2023; 103:2745-2751. [PMID: 36273267 DOI: 10.1002/jsfa.12289] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 09/10/2022] [Accepted: 10/20/2022] [Indexed: 06/16/2023]
Abstract
Wheat grain quality, an important determinant for human nutrition, is often overlooked when improving crop production for stressed environments. Climate change makes this task more difficult by imposing combined stresses. The scenarios relevant to climate change include elevated CO2 concentrations (eCO2 ) and extreme climatic events such as drought, heat waves, and salinity stresses. However, data on wheat quality in terms of climate change are limited, with no concerted efforts at the global level to provide an equitable and consistent climate risk assessment for wheat grain quality. Climate change induces changes in the quality and composition of wheat grain, a premier staple food crop globally. Climate-change events, such as eCO2 , heat, drought, salinity stress stresses, heat + drought, eCO2 + drought, and eCO2 + heat stresses, alter wheat grain quality in terms of grain weight, nutrient, anti-nutrient, fiber, and protein content and composition, starch granules, and free amino acid composition. Interestingly, in comparison with other stresses, heat stress and drought stress increase phytate content, which restricts the bioavailability of essential mineral elements. All climatic events, except for eCO2 + heat stress, increase grain gliadin content in different wheat varieties. However, grain quality components depend more on inter-varietal difference, stress type, and exposure time and intensity. The climatic events show differential regulation of protein and starch accumulation, and mineral metabolism in wheat grains. Rapid climate shifting impairs wheat productivity and causes grain quality to deteriorate by interrupting the allocation of essential nutrients and photoassimilates. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Noreen Zahra
- Department of Botany, University of Agriculture, Faisalabad, Pakistan
- Department of Botany, Government College for Women University, Faisalabad, Pakistan
| | | | - Abdul Wahid
- Department of Botany, University of Agriculture, Faisalabad, Pakistan
| | - Muna Hamed Al Masruri
- Department of Plant Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Seeb, Oman
| | - Aman Ullah
- Department of Plant Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Seeb, Oman
| | - Kadambot H M Siddique
- The UWA Institute of Agriculture, The University of Western Australia, Perth, Australia
| | - Muhammad Farooq
- Department of Plant Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Seeb, Oman
- The UWA Institute of Agriculture, The University of Western Australia, Perth, Australia
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17
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Rafique M, Rashid A, Tao S, Wang B, Ullah A, Lu L, Ullah H, Ali MU, Naseem W. Urinary PAHs metabolites in Karakoram Highway's heavy traffic vehicle (HTV) drivers: evidence of exposure and health risk. Environ Geochem Health 2023; 45:1013-1026. [PMID: 35635682 DOI: 10.1007/s10653-022-01301-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 05/07/2022] [Indexed: 06/15/2023]
Abstract
The current study features PAHs exposure on Karakoram Highway, a route of utmost importance in Pakistan. The drivers of heavy traffic vehicles (HTV) on Karakoram Highway spend long hours amid dense traffic and therefore, inevitably inhale huge amount of PAH carcinogens. The urinary metabolites of PAHs in such drivers (meeting selection criteria n = 48) and a control group (n = 49) were comparatively profiled. The higher urinary biomarkers among ninety-six percent HTV drivers were evident of PAHs exposure. We observed elevated concentrations of urinary benzo[a]pyrene metabolites (3-OH-BaP = 3.53 ± 0.62 ng g-1 creatinine and 9-OH-BaP = 3.69 ± 0.74 ng g-1 creatinine) in HTV driver's samples compared to controls (0.85 ± 0.08 and 0.31 ± 0.03 ng g-1 creatinine, respectively). Interestingly, urinary benzo[a]pyrene metabolites were detected in almost similar amount among HTV drivers irrespective of their working hours. A distinct smoking effect was manifested with rising urinary levels of 1-hydroxypyrene, 2-hydroxyphenanthrene, and 3-hydroxybenzo[a]pyrene with corresponding increase in driving hours per day. These metabolites exhibited characteristic exposures to low molecular weight volatile PAHs that are commonly found in vehicular exhaust. The elevated PAH body burden was directly linked to the nature of their job and the route-long environmental pollution on Karakoram Highway. Additionally, the poor economic status and smoking also increased HTV driver's health vulnerability and significantly declined their health capacity. There was conclusive evidence that HTV drivers were exposed to PAHs during a ride on Karakoram Highway, back and forth, an aspect not reported earlier.
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Affiliation(s)
- Maria Rafique
- Eco-Health Research Group, Department of Environmental Sciences, PMAS Arid Agriculture University, Rawalpindi, Pakistan
| | - Audil Rashid
- Eco-Health Research Group, Department of Environmental Sciences, PMAS Arid Agriculture University, Rawalpindi, Pakistan.
- Faculty of Science, University of Gujrat, Hafiz Hayat Campus, Gujrat, 50700, Pakistan.
| | - Shu Tao
- College of Urban and Environmental Sciences, Peking University, Beijing, China
| | - Bin Wang
- Institute of Reproductive and Child Health, Department of Epidemiology and Health Statistics, School of Public Health, Peking University, Beijing, China
| | - Aman Ullah
- Eco-Health Research Group, Department of Environmental Sciences, PMAS Arid Agriculture University, Rawalpindi, Pakistan
| | - Lun Lu
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, 510655, China
| | - Habib Ullah
- Department of Environmental Science, Zhejiang University, Hangzhou, 310058, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Organic Pollutant Process and Control, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Muhammad Ubaid Ali
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Science, Guiyang, 550081, China
| | - Waqas Naseem
- Department of Geology, University of Poonch, Rawalakot, Azad Jammu and Kashmir, Pakistan
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18
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Khanzada B, Mirza B, Ullah A. Chitosan based bio-nanocomposites packaging films with unique mechanical and barrier properties. Food Packag Shelf Life 2023. [DOI: 10.1016/j.fpsl.2022.101016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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19
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Rodriguez Herrero Y, Ullah A. Hydrophobic Polyhedral Oligomeric Silsesquioxane Support Enhanced Methanol Production from CO 2 Hydrogenation. ACS Appl Mater Interfaces 2023. [PMID: 36808935 DOI: 10.1021/acsami.3c00183] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The abundance of CO2 from the cement industry, power generation, petroleum production, and combustion of biomass makes it a readily available feedstock to produce chemicals and materials, although it has yet to achieve optimal development. Even though syngas (CO + H2) hydrogenation to methanol is an established industrial process, when the same catalytic system based on Cu/ZnO/Al2O3 is employed with CO2, the water formed as a byproduct reduces the activity, stability, and selectivity of the process. Here, we explored the potential of phenyl polyhedral oligomeric silsesquioxane (POSS) as a hydrophobic support of Cu/ZnO for direct CO2 hydrogenation to methanol. Mild calcination of the copper-zinc-impregnated POSS material affords the formation of CuZn-POSS nanoparticles with Cu and ZnO homogeneously dispersed with an average particle size of 7 and 15 nm supported on O-POSS and D-POSS, respectively. The composite supported on D-POSS was able to reach a 3.8% yield of methanol with a 4.4% of CO2 conversion and with selectivity as high as 87.5% within 18 h. The structural investigation of the catalytic system reveals that CuO/ZnO are electron withdrawers in the presence of the siloxane cage of POSS. The catalytic system metal-POSS is stable and recyclable under H2 reduction and CO2/H2 conditions. We tested the use of microbatch reactors in heterogeneous reactions as a rapid and effective tool for catalyst screening. The increased number of phenyls in the structure of POSS results in an increased hydrophobic character that plays a decisive role in the methanol formation after comparison with CuO/ZnO supported on reduced graphene oxide with 0% selectivity to methanol under the study conditions. The materials were characterized using scanning electron microscopy, transmission electron microscopy, attenuated total reflection Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, powder X-ray diffraction, Fourier transform infrared analysis, Brunauer-Emmett-Teller specific surface area analysis, contact angle, and thermogravimetry. The gaseous products were characterized by gas chromatography coupled with thermal conductivity detectors and flame ionization detectors.
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Affiliation(s)
- Yanet Rodriguez Herrero
- Department of Agricultural, Food and Nutritional Science, 4-10 Agriculture/Forestry Centre, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
| | - Aman Ullah
- Department of Agricultural, Food and Nutritional Science, 4-10 Agriculture/Forestry Centre, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
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20
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Masood Z, Hasan Z, Gul H, Zahid H, Hassan HU, Sultan R, Khan W, Safia, Titus K, Ullah A. Monitoring pond water quality to improve the production of Labeo rohita (Hamilton, 1822) in Bannu Fish Hatchery of Bannu district, Khyber Pakhtunkhwa province; An Implications for artificial fish culture. BRAZ J BIOL 2023; 83:e245197. [DOI: 10.1590/1519-6984.245197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Accepted: 01/06/2021] [Indexed: 11/21/2022] Open
Abstract
Abstract The water quality parameters of a fish pond are essential to be managing properly under control for successful operations of fish culture. Improper management of pond water quality during the juvenile stages can create stressful conditions to produce various harmful diseases, which may decrease the fish quality and results in low profits. The present study was aimed to monitored important water quality parameters of nursery ponds of Labeo rohita culturing in Bannu fish hatchery. The study duration was 75 days extends from 10th June to 24th August 2019 for the successful culture of this specie which can play a significant role in breeding season. Furthermore, the concentration of some heavy metals like copper (Cu), nickel (Ni), manganese (Mn), iron (Fe), cadmium (Cd), and zinc (Zn) in pond water and fry stages of this species was also determined. The data obtained from all water quality parameters were analyzed expressed as range, mean and standard deviation using MS Excel 2013. The obtained results of 75 days study revealed that the water pH & temperature, electric conductivity, total dissolved solids (TDS), and total dissolved oxygen (DO) of pond water samples were found within a tolerable limit except salinity and dissolved ammonia concentration were not permissible for fish growth. The average concentration of heavy metals in pond water exhibited descending order Fe>Ni>Mn>Zn>Cd>Ni, which was found in acceptable ranges. Whereas, the average values of heavy metals in fry stages were in the order of Zn>Fe>Ni>Cu>Cd>Mn, and found within the recommended values of WHO/FAO. Thus, it was concluded from this study that good water quality is a precondition, maintaining balanced levels of water quality parameters is fundamental for both the health and growth of fish culture which is quite necessary for assuring increased fish productivity. It is recommended to monitor and assess water quality parameters on a routine basis for promoting healthy fish culture.
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Affiliation(s)
- Z. Masood
- Sardar Bahadur Khan Women’s University, Pakistan
| | - Z. Hasan
- University of Peshawar, Pakistan
| | - H. Gul
- Sardar Bahadur Khan Women’s University, Pakistan
| | - H. Zahid
- University of Balochistan, Pakistan
| | | | - R. Sultan
- Islamia College University, Pakistan
| | - W. Khan
- University of Malakand, Pakistan
| | - Safia
- Hazara University, Pakistan
| | - K. Titus
- Sardar Bahadur Khan Women’s University, Pakistan
| | - A. Ullah
- University of Veterinary and Animal Sciences, Pakistan
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21
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Abd-Alhameed RA, Hu YF, Gharbia I, Aldelemy A, Ullah A. Beam squint of analogue beamformed user terminal using antenna array. 39th International Communications Satellite Systems Conference (ICSSC 2022) 2023. [DOI: 10.1049/icp.2023.1404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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22
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Masood Z, Gul Y, Gul H, Zahid H, Safia, Khan M, Hassan HU, Khan W, Gul N, Ullah A. Assessments of some trace metals in water samples of nursery pond of Grass Carp (Ctenopharyngodon idella, Valenciennes, 1844) in Bannu Fish Hatchery of Khyber Pakhtunkhwa, Pakistan. BRAZ J BIOL 2023; 83:e245199. [DOI: 10.1590/1519-6984.245199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 01/08/2021] [Indexed: 11/22/2022] Open
Abstract
Abstract The present investigation was aimed to examine the concentrations of trace metals including e.g copper (Cu), manganese (Mn), nickel (Ni), and zinc (Zn) in water samples collected from nursery pond of grass carp (Ctenopharyngodon idella) in Bannu Hatchery of Khyber Pakhtunkhwa during the period from April 2018 to January 2019. The temperature and pH of each water sample were measured for the whole study duration. The concentration of Copper (Cu), Manganese (Mn), Nickel (Ni), and Zinc (Zn) in collected water samples were measured in mg/liter by using Atomic Absorption Spectrophotometer. The blank and standard solutions for device calibration Standard solutions i.e., 2.0 mg, 4.0 mg, and 6.0 were used to measure the concentration of these metals in water samples to verify the measurements. The data was statistically analyzed on descriptive statistics (estimation of proportions and standard deviation) used to summarize mean concentration. The results obtained of both temperature and pH of water samples were found in ranged 10 to 36 0C and 7.0 to 8.44; whereas the size of fry stages was ranged from 4.0 to 56.0 mm in total length. The results of investigated metals found in pond water samples are in order of Zn>Mn>Ni>Cu, respectively. As optimum temperature and pH for grass carp were mostly between 15 0C and 30 0C and pH 6.5 to 8.0. It was concluded from obtained results that temperature, pH, and trace metals were found appropriate for the growth of Ctenopharyngodon idella from fry to fingerling stages, but the highest amount of zinc can cause its mortality. It is a preliminary study on grass carp culturing in Bannu fish hatchery so, it would provide useful information for model fish seed production unit in a hatchery.
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Affiliation(s)
- Z. Masood
- Sardar Bahadur Khan Women’s University, Pakistan
| | - Y. Gul
- Government College Women University, Pakistan
| | - H. Gul
- Sardar Bahadur Khan Women’s University, Pakistan
| | - H. Zahid
- University of Balochistan, Pakistan
| | - Safia
- Hazara University, Pakistan
| | - M.A. Khan
- The University of Agriculture, Pakistan
| | | | - W. Khan
- University of Malakand, Pakistan
| | - N. Gul
- Sardar Bahadur Khan Women’s University, Pakistan
| | - A. Ullah
- University of Veterinary and Animal Sciences, Lahore
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23
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Khan N, Ma Z, Yan L, Ullah A. Hashing-based semantic relevance attributed knowledge graph embedding enhancement for deep probabilistic recommendation. APPL INTELL 2023; 53:2295-2320. [PMID: 35572050 PMCID: PMC9075930 DOI: 10.1007/s10489-022-03235-7] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/11/2022] [Indexed: 01/07/2023]
Abstract
Knowledge graph embedding (KGE) is effectively exploited in providing precise and accurate recommendations from many perspectives in different application scenarios. However, such methods that utilize entire embedded Knowledge Graph (KG) without applying information-relevance regulatory constraints fail to stop the noise penetration into the underlying information. Moreover, higher computational time complexity is a CPU overhead in KG-enhanced systems and applications. The occurrence of these limitations significantly degrade the recommendation performance. Therefore, to cope with these challenges we proposed novel KGEE (Knowledge Graph Embedding Enhancement) approach of Hashing-based Semantic-relevance Attributed Graph-embedding Enhancement (H-SAGE) to model semantically-relevant higher-order entities and relations into the unique Meta-paths. For this purpose, we introduced Node Relevance-based Guided-walk (NRG) modeling technique. Further, to deal with the computational time-complexity, we converted the relevant information to the Hash-codes and proposed Deep-Probabilistic (dProb) technique to place hash-codes in the relevant hash-buckets. Again, we used dProb to generate guided function-calls to maximize the possibility of Hash-Hits in the hash-buckets. In case of Hash-Miss, we applied Locality Sensitive (LS) hashing to retrieve the required information. We performed experiments on three benchmark datasets and compared the empirical as well as the computational performance of H-SAGE with the baseline approaches. The achieved results and comparisons demonstrate that the proposed approach has outperformed the-state-of-the-art methods in the mentioned facets of evaluation.
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Affiliation(s)
- Nasrullah Khan
- College of Computer Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016 China ,Department of Computer Science, COMSATS University Islamabad, Vehari, 61100 Pakistan
| | - Zongmin Ma
- College of Computer Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016 China ,Collaborative Innovation Centre of Novel Software Technology and Industrialization, Nanjing, 210000 China
| | - Li Yan
- College of Computer Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016 China
| | - Aman Ullah
- School of Computer Science and Engineering, Central South University, Changsha, 410083 China
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McCoy MD, Ullah A, Lederer WJ, Jafri MS. Understanding Calmodulin Variants Affecting Calcium-Dependent Inactivation of L-Type Calcium Channels through Whole-Cell Simulation of the Cardiac Ventricular Myocyte. Biomolecules 2022; 13:72. [PMID: 36671457 PMCID: PMC9855640 DOI: 10.3390/biom13010072] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/21/2022] [Accepted: 12/23/2022] [Indexed: 12/31/2022] Open
Abstract
Mutations in the calcium-sensing protein calmodulin (CaM) have been linked to two cardiac arrhythmia diseases, Long QT Syndrome 14 (LQT14) and Catecholaminergic Polymorphic Ventricular Tachycardia Type 4 (CPVT4), with varying degrees of severity. Functional characterization of the CaM mutants most strongly associated with LQT14 show a clear disruption of the calcium-dependent inactivation (CDI) of the L-Type calcium channel (LCC). CPVT4 mutants on the other hand are associated with changes in their affinity to the ryanodine receptor. In clinical studies, some variants have been associated with both CPVT4 and LQT15. This study uses simulations in a model for excitation-contraction coupling in the rat ventricular myocytes to understand how LQT14 variant might give the functional phenotype similar to CPVT4. Changing the CaM-dependent transition rate by a factor of 0.75 corresponding to the D96V variant and by a factor of 0.90 corresponding to the F142L or N98S variants, in a physiologically based stochastic model of the LCC prolonger, the action potential duration changed by a small amount in a cardiac myocyte but did not disrupt CICR at 1, 2, and 4 Hz. Under beta-adrenergic simulation abnormal excitation-contraction coupling was observed above 2 Hz pacing for the mutant CaM. The same conditions applied under beta-adrenergic stimulation led to the rapid onset of arrhythmia in the mutant CaM simulations. Simulations with the LQT14 mutations under the conditions of rapid pacing with beta-adrenergic stimulation drives the cardiac myocyte toward an arrhythmic state known as Ca2+ overload. These simulations provide a mechanistic link to a disease state for LQT14-associated mutations in CaM to yield a CPVT4 phenotype. The results show that small changes to the CaM-regulated inactivation of LCC promote arrhythmia and underscore the significance of CDI in proper heart function.
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Affiliation(s)
- Matthew D. McCoy
- School of Systems Biology, George Mason University, Fairfax, VA 22030, USA
- Innovation Center for Biomedical Informatics, Department of Oncology, Georgetown University Medical Center, Georgetown University, Washington, DC 20057, USA
| | - Aman Ullah
- School of Systems Biology, George Mason University, Fairfax, VA 22030, USA
| | - W. Jonathan Lederer
- Center for Biomedical Engineering and Technology, University of Maryland School of Medicine, Baltimore, MD 20201, USA
| | - M. Saleet Jafri
- School of Systems Biology, George Mason University, Fairfax, VA 22030, USA
- Center for Biomedical Engineering and Technology, University of Maryland School of Medicine, Baltimore, MD 20201, USA
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25
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Paudel R, Jafri MS, Ullah A. Pacing Dynamics Determines the Arrhythmogenic Mechanism of the CPVT2-Causing CASQ2 G112+5X Mutation in a Guinea Pig Ventricular Myocyte Computational Model. Genes (Basel) 2022; 14:23. [PMID: 36672764 PMCID: PMC9858930 DOI: 10.3390/genes14010023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 12/05/2022] [Accepted: 12/20/2022] [Indexed: 12/25/2022] Open
Abstract
Calsequestrin Type 2 (CASQ2) is a high-capacity, low-affinity, Ca2+-binding protein expressed in the sarcoplasmic reticulum (SR) of the cardiac myocyte. Mutations in CASQ2 have been linked to the arrhythmia catecholaminergic polymorphic ventricular tachycardia (CPVT2) that occurs with acute emotional stress or exercise can result in sudden cardiac death (SCD). CASQ2G112+5X is a 16 bp (339-354) deletion CASQ2 mutation that prevents the protein expression due to premature stop codon. Understanding the subcellular mechanisms of CPVT2 is experimentally challenging because the occurrence of arrhythmia is rare. To obtain an insight into the characteristics of this rare disease, simulation studies using a local control stochastic computational model of the Guinea pig ventricular myocyte investigated how the mutant CASQ2s may be responsible for the development of an arrhythmogenic episode under the condition of β-adrenergic stimulation or in the slowing of heart rate afterward once β-adrenergic stimulation ceases. Adjustment of the computational model parameters based upon recent experiments explore the functional changes caused by the CASQ2 mutation. In the simulation studies under rapid pacing (6 Hz), electromechanically concordant cellular alternans appeared under β-adrenergic stimulation in the CPVT mutant but not in the wild-type nor in the non-β-stimulated mutant. Similarly, the simulations of accelerating pacing from slow to rapid and back to the slow pacing did not display alternans but did generate early afterdepolarizations (EADs) during the period of second slow pacing subsequent acceleration of rapid pacing.
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Affiliation(s)
- Roshan Paudel
- School of Systems Biology, George Mason University, Fairfax, VA 22030, USA
- School of Computer, Mathematical, and Natural Sciences, Morgan State University, Baltimore, MD 21251, USA
| | - Mohsin Saleet Jafri
- School of Systems Biology, George Mason University, Fairfax, VA 22030, USA
- Center for Biomedical Engineering and Technology, University of Maryland School of Medicine, Baltimore, MD 20201, USA
| | - Aman Ullah
- School of Systems Biology, George Mason University, Fairfax, VA 22030, USA
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26
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Zubair M, Roopesh MS, Ullah A. Nano-modified feather keratin derived green and sustainable biosorbents for the remediation of heavy metals from synthetic wastewater. Chemosphere 2022; 308:136339. [PMID: 36122754 DOI: 10.1016/j.chemosphere.2022.136339] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 08/29/2022] [Accepted: 09/02/2022] [Indexed: 06/15/2023]
Abstract
In this study, we employed a facile method to synthesize feather keratin derived biosorbents using water dispersed graphene oxide. The successful cross-linking of feather keratin with graphene oxide was investigated through X-ray photoelectrons spectroscopy (XPS), scanning and transmission electron microscopy, and Brunauer-Emmett-Teller (BET) analysis. The modifications resulted in increased surface area of the keratin proteins with substantial morphological changes including the development of cracked and rough patches on the surface. The chicken feather keratin/graphene oxide based biosorbents exhibited excellent performance for the simultaneous removal of metal oxyanions including arsenic (As), selenium (Se), chromium (Cr) and cations including nickel (Ni), cobalt (Co), lead (Pb), cadmium (Cd) and zinc (Zn) up to 99%, from polluted synthetic water containing 600 μgL-1 of each metal concentration in 24 h. The insights into the biosorption mechanism revealed that the electrostatic interaction, chelation and complexation primarily contributed to the removal of multiple heavy metal ions in a single treatment. This study has demonstrated that modification of chicken feather keratin with graphene oxide is an effective way to improve its sorption capacity for removing multiple trace metal ions from contaminated water.
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Affiliation(s)
- Muhammad Zubair
- Department of Agricultural, Food and Nutritional Science, Lab# 540 South Academic Building University of Alberta, Edmonton, Alberta, T6G 2P5, Canada
| | - M S Roopesh
- Department of Agricultural, Food and Nutritional Science, Lab# 540 South Academic Building University of Alberta, Edmonton, Alberta, T6G 2P5, Canada
| | - Aman Ullah
- Department of Agricultural, Food and Nutritional Science, Lab# 540 South Academic Building University of Alberta, Edmonton, Alberta, T6G 2P5, Canada.
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Akhter S, Irfan HM, Alamgeer, Ullah A, Jahan S, Roman M, Latif MB, Mustafa Z, Almutairi FM, Althobaiti YS. Noscapine hydrochloride (benzyl-isoquinoline alkaloid) effectively prevents protein denaturation through reduction of IL-6, NF-kB, COX-2, Prostaglandin-E2 in rheumatic rats. Saudi Pharm J 2022; 30:1791-1801. [PMID: 36601515 PMCID: PMC9805980 DOI: 10.1016/j.jsps.2022.10.008] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 10/13/2022] [Indexed: 11/08/2022] Open
Abstract
Noscapine hydrochloride (benzyl-isoquinoline antitussive alkaloid) is an opium derivative and generally used as a cough suppressant. Numerous studies on noscapine hydrochloride have reported that it has potent anti-inflammatory activity. However, the mechanisms by which it exerts an anti-inflammatory function is not well understood. Protein denaturation is the primary step that leads to the organ destruction and permanent arthritic disability. The above-mentioned facts provided the ground to plan this study using different in-vitro and in-vivo approaches. RT-qPCR and ELISA assays were used to assess the inflammatory markers related to protein denaturation in complete adjuvant persuaded rheumatism in Sprague - Dawley rats. The results were collected as paw volume and body weight changes, arthritic scoring and serum antioxidant enzymes assays. These findings demonstrated that all doses of noscapine hydrochloride (10, 20 and 40 mg/kg) studied in this study, significantly (p < 0.001) decreased the protein denaturation by preventing the increase in levels of interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), nuclear factor-kB (NF-kB), cyclooxygenase-2 (COX-2) and prostaglandin E2. Noscapine hydrochloride significantly reduced the paw volume (p < 0.001), arthritic scoring and reversed the body mass as compared to arthritic control diseased rats.
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Affiliation(s)
- Shanila Akhter
- College of Pharmacy, University of Sargodha, Sargodha, 40100, Pakistan
| | - Hafiz Muhammad Irfan
- College of Pharmacy, University of Sargodha, Sargodha, 40100, Pakistan,Corresponding authors at: Department of Clinical Laboratories Sciences, College of Applied Medical Sciences, University of Hafr AlBatin, Hafr AlBatin 39524, Eastern Provine, Saudi Arabia. (F.M. Almutairi).
| | - Alamgeer
- Department of Pharmacology, Punjab University College of Pharmacy, University of the Punjab, Lahore, 54590, Pakistan
| | - Aman Ullah
- College of Pharmaceutical Sciences, Shifa Tameer-e-Millat University, Islamabad, 44000, Pakistan
| | - Shah Jahan
- Department of Immunology, University of Health Sciences, Lahore, 54600, Pakistan
| | - Muhammad Roman
- Department of Immunology, University of Health Sciences, Lahore, 54600, Pakistan
| | - Muhammad Bilal Latif
- Department of Pathology and Laboratory Medicine, School of Medicine, Emory University, Atlanta, 30322, USA
| | - Zaid Mustafa
- Department of Agricultural Sciences, Allama Iqbal Open University Islamabad, 44000, Pakistan
| | - Farooq M. Almutairi
- Department of Clinical Laboratories Sciences, College of Applied Medical Sciences, University of Hafr AlBatin, Hafr AlBatin, 39524, Saudi Arabia,Corresponding authors at: Department of Clinical Laboratories Sciences, College of Applied Medical Sciences, University of Hafr AlBatin, Hafr AlBatin 39524, Eastern Provine, Saudi Arabia. (F.M. Almutairi).
| | - Yusuf S. Althobaiti
- Department of Pharmacology and Toxicology, College of Pharmacy, Taif University, 21944, Saudi Arabia,Addiction and Neuroscience Research Unit, Taif University, 21944, Saudi Arabia
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28
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Hoo-Fatt N, Ullah A, Nam M. Clinical Application of Rapid PCR and Computational Digital Pathology for Cancer Diagnostics: A showcase for Advanced Lung Cancer Management. Am J Clin Pathol 2022. [DOI: 10.1093/ajcp/aqac126.250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Abstract
Introduction/Objective
While there has been a significant increase in our understanding of the molecular changes that occur during cancer growth, the clinical efficacy of molecular testing for cancer diagnosis treatment for advanced cancers has been limited .The objective of this project is to determine the use of rapid molecular tests with same-day turn-around-time (TAT) for tumor mutations and the application of objective AI-based digital scoring methods of Immunohistochemistry test for PD-L1 for Keytruda® (Pembrolizumab). These targeted therapies for various cancers will improve patient care by reducing turnaround time and increasing diagnostic accuracy of cancer biomarker testing.
Methods/Case Report
A combination of rapid EGFR assays, IHC for PDL1 and digital pathology scoring was used. The data received was then used for genome-wide correlation analysis of human gene CD274 and the RNA-seq dataset from The Cancer Genome Atlas (TCGA).
Results (if a Case Study enter NA)
Our preliminary study results showed that there is a correlation between Micro-RNA expression of PD-L1 and immunohistochemistry PD-L1 stains. Some micro-RNA expression showed over- expression of PD-L1, which resulted in high PD-L1 IHC score. This shows that there may be a case for more bio marker studies to aid in predicting of the response to PD-L1 pathway inhibitors. The rapid molecular testing results were also comparable to next gen sequencing (NGS) in determining the EGFR mutations. Future studies include the training of the PD-L1 AI algorithm for scoring to be used as a diagnostic companion and the use of immune based metrics to study the response and resistance to immunotherapy in non-small cell lung cancer(NSCLC).
Conclusion
We would like to showcase a combined modality diagnostic biomarker testing system that can allow the clinical decision on the targeted therapy in 24-48 hours. With the approval of Keytruda® (Pembrolizumab) in many advanced cancers, we believe that our approach for NSCLC will provide fast and high quality results for timely treatment of patients.
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Affiliation(s)
- N Hoo-Fatt
- Bioinformatics and Computational Biology, George Mason University , Herndon, Virginia , United States
| | - A Ullah
- Bioinformatics and Computational Biology, George Mason University , Herndon, Virginia , United States
| | - M Nam
- Pathology, Inova Health System , Fairfax, Virginia , United States
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29
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Ullah A, Al Kury LT, Althobaiti YS, Ali T, Shah FAL. Benzimidazole Derivatives as New Potential NLRP3 Inflammasome Inhibitors That Provide Neuroprotection in a Rodent Model of Neurodegeneration and Memory Impairment [Retraction]. J Inflamm Res 2022; 15:6065-6066. [DOI: 10.2147/jir.s395875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 11/02/2022] [Indexed: 11/06/2022] Open
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Paudel R, Jafri MS, Ullah A. The Role of Ca 2+ Sparks in Force Frequency Relationships in Guinea Pig Ventricular Myocytes. Biomolecules 2022; 12:1577. [PMID: 36358926 PMCID: PMC9687237 DOI: 10.3390/biom12111577] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 10/19/2022] [Accepted: 10/21/2022] [Indexed: 10/13/2023] Open
Abstract
Calcium sparks are the elementary Ca2+ release events in excitation-contraction coupling that underlie the Ca2+ transient. The frequency-dependent contractile force generated by cardiac myocytes depends upon the characteristics of the Ca2+ transients. A stochastic computational local control model of a guinea pig ventricular cardiomyocyte was developed, to gain insight into mechanisms of force-frequency relationship (FFR). This required the creation of a new three-state RyR2 model that reproduced the adaptive behavior of RyR2, in which the RyR2 channels transition into a different state when exposed to prolonged elevated subspace [Ca2+]. The model simulations agree with previous experimental and modeling studies on interval-force relations. Unlike previous common pool models, this local control model displayed stable action potential trains at 7 Hz. The duration and the amplitude of the [Ca2+]myo transients increase in pacing rates consistent with the experiments. The [Ca2+]myo transient reaches its peak value at 4 Hz and decreases afterward, consistent with experimental force-frequency curves. The model predicts, in agreement with previous modeling studies of Jafri and co-workers, diastolic sarcoplasmic reticulum, [Ca2+]sr, and RyR2 adaptation increase with the increased stimulation frequency, producing rising, rather than falling, amplitude of the myoplasmic [Ca2+] transients. However, the local control model also suggests that the reduction of the L-type Ca2+ current, with an increase in pacing frequency due to Ca2+-dependent inactivation, also plays a role in the negative slope of the FFR. In the simulations, the peak Ca2+ transient in the FFR correlated with the highest numbers of SR Ca2+ sparks: the larger average amplitudes of those sparks, and the longer duration of the Ca2+ sparks.
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Affiliation(s)
- Roshan Paudel
- School of Systems Biology, George Mason University, Fairfax, VA 22030, USA
- School of Computer, Mathematical, and Natural Sciences, Morgan State University, Baltimore, MD 21251, USA
| | - Mohsin Saleet Jafri
- School of Systems Biology, George Mason University, Fairfax, VA 22030, USA
- Center for Biomedical Engineering and Technology, University of Maryland School of Medicine, Baltimore, MD 20201, USA
| | - Aman Ullah
- School of Systems Biology, George Mason University, Fairfax, VA 22030, USA
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31
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Latif K, Ullah A, Shkodina AD, Boiko DI, Rafique Z, Alghamdi BS, Alfaleh MA, Ashraf GM. Drug reprofiling history and potential therapies against Parkinson’s disease. Front Pharmacol 2022; 13:1028356. [PMID: 36386233 PMCID: PMC9643740 DOI: 10.3389/fphar.2022.1028356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 10/03/2022] [Indexed: 12/02/2022] Open
Abstract
Given the high whittling down rates, high costs, and moderate pace of new medication, revelation, and improvement, repurposing “old” drugs to treat typical and uncommon illnesses is progressively becoming an appealing proposition. Drug repurposing is the way toward utilizing existing medications in treating diseases other than the purposes they were initially designed for. Faced with scientific and economic challenges, the prospect of discovering new medication indications is enticing to the pharmaceutical sector. Medication repurposing can be used at various stages of drug development, although it has shown to be most promising when the drug has previously been tested for safety. We describe strategies of drug repurposing for Parkinson’s disease, which is a neurodegenerative condition that primarily affects dopaminergic neurons in the substantia nigra. We also discuss the obstacles faced by the repurposing community and suggest new approaches to solve these challenges so that medicine repurposing can reach its full potential.
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Affiliation(s)
- Komal Latif
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Islamabad, Pakistan
| | - Aman Ullah
- Shifa College of Pharmaceutical Sciences, Shifa Tameer-e-Millet University, Islamabad, Pakistan
| | - Anastasiia D. Shkodina
- Department of Neurological Diseases, Poltava State Medical University, Poltava, Ukraine
- Municipal Enterprise “1 City Clinical Hospital of Poltava City Council”, Poltava, Ukraine
- *Correspondence: Ghulam Md. Ashraf, ; Anastasiia D. Shkodina,
| | - Dmytro I. Boiko
- Department of Psychiatry, Narcology and Medical Psychology, Poltava State Medical University, Poltava, Ukraine
| | - Zakia Rafique
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Islamabad, Pakistan
| | - Badrah S. Alghamdi
- Neuroscience Unit, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
- King Fahd Center for Medical Research, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohamed A. Alfaleh
- Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
- Division of Vaccines and Immunotherapy, King Fahd Center for Medical Research, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ghulam Md. Ashraf
- Department of Medical Laboratory Sciences, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- *Correspondence: Ghulam Md. Ashraf, ; Anastasiia D. Shkodina,
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32
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Yunus AW, Lindahl JF, Anwar Z, Ullah A, Ibrahim MNM. Farmer’s knowledge and suggested approaches for controlling aflatoxin contamination of raw milk in Pakistan. Front Microbiol 2022; 13:980105. [PMID: 36338062 PMCID: PMC9630330 DOI: 10.3389/fmicb.2022.980105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 09/29/2022] [Indexed: 12/03/2022] Open
Abstract
Monitoring of aflatoxin levels in milk is often complicated in developing countries due to the dominance of informal markets channeling milk in raw form. Farmer’s awareness and voluntary participation in aflatoxin mitigation can be critical in such scenarios. Therefore, the present study was conducted to understand the perceptions of dairy farmers about aflatoxins and link it with aflatoxin mitigation programs on milk in Pakistan. Information was collected from 450 peri-urban dairy farmers in seven cities using questionnaires. Majority (77.9%) of the farmers were aware of the negative impact of moldy feed on animal health. However, only 40.6% of the farmers were aware of the transferability of the toxins from moldy feed to milk. The farmers had almost no awareness of aflatoxins as 95% never heard of the term. After receiving an onsite briefing on effects of the toxin on animal and human health, and its transferability to milk, 98.3% farmers showed willingness to buy aflatoxin-safe feedstuffs, while 88.5% showed willingness to control aflatoxin in milk. Around half of the farmers considered aflatoxin control programs as affordable. On average, farmers agreed to pay 10.1% higher price for aflatoxin certified oilseed cakes. Availability of feedstuffs certified of low aflatoxin content was suggested by 22% of the participants as the critical step in reducing aflatoxins in milk. Other important suggestions included; subsidy on quality feeds (18%), raising awareness (18%), and legislation and monitoring (16%). The present results suggest that the current practice of milk monitoring in the country can yield desirable results only if it is coupled with feed certification programs ensuing availability of aflatoxin-safe feeds. Further, awareness can positively impact participation of producers in aflatoxin control programs. In this regard, awareness about effects of aflatoxins on animal health was found to be a more powerful trigger of voluntary control compared with the awareness of the toxin’s transferability to milk.
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Affiliation(s)
- Agha Waqar Yunus
- Animal Sciences Institute, National Agricultural Research Center, Islamabad, Pakistan
- Department of Animal Genomics and Biotechnology, PARC Institute of Advanced Studies in Agriculture, Islamabad, Pakistan
- *Correspondence: Agha Waqar Yunus,
| | - Johanna Frida Lindahl
- International Livestock Research Institute, Hanoi, Vietnam
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Zahid Anwar
- Department of Animal Genomics and Biotechnology, PARC Institute of Advanced Studies in Agriculture, Islamabad, Pakistan
| | - Aman Ullah
- Animal Sciences Institute, National Agricultural Research Center, Islamabad, Pakistan
- Department of Animal Genomics and Biotechnology, PARC Institute of Advanced Studies in Agriculture, Islamabad, Pakistan
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Khan RU, Almakdi S, Alshehri M, Kumar R, Ali I, Hussain SM, Haq AU, Khan I, Ullah A, Uddin MI. Probabilistic Approach to COVID-19 Data Analysis and Forecasting Future Outbreaks Using a Multi-Layer Perceptron Neural Network. Diagnostics (Basel) 2022; 12:diagnostics12102539. [PMID: 36292228 PMCID: PMC9600455 DOI: 10.3390/diagnostics12102539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 10/02/2022] [Accepted: 10/12/2022] [Indexed: 11/16/2022] Open
Abstract
The present outbreak of COVID-19 is a worldwide calamity for healthcare infrastructures. On a daily basis, a fresh batch of perplexing datasets on the numbers of positive and negative cases, individuals admitted to hospitals, mortality, hospital beds occupied, ventilation shortages, and so on is published. Infections have risen sharply in recent weeks, corresponding with the discovery of a new variant from South Africa (B.1.1.529 also known as Omicron). The early detection of dangerous situations and forecasting techniques is important to prevent the spread of disease and restart economic activities quickly and safely. In this paper, we used weekly mobility data to analyze the current situation in countries worldwide. A methodology for the statistical analysis of the current situation as well as for forecasting future outbreaks is presented in this paper in terms of deaths caused by COVID-19. Our method is evaluated with a multi-layer perceptron neural network (MLPNN), which is a deep learning model, to develop a predictive framework. Furthermore, the Case Fatality Ratio (CFR), Cronbach’s alpha, and other metrics were computed to analyze the performance of the forecasting. The MLPNN is shown to have the best outcomes in forecasting the statistics for infected patients and deaths in selected regions. This research also provides an in-depth analysis of the emerging COVID-19 variants, challenges, and issues that must be addressed in order to prevent future outbreaks.
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Affiliation(s)
- Riaz Ullah Khan
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China
- Correspondence:
| | - Sultan Almakdi
- Department of Computer Science, College of Computer Science and Information Systems, Najran University, Najran 55461, Saudi Arabia
| | - Mohammed Alshehri
- Department of Computer Science, College of Computer Science and Information Systems, Najran University, Najran 55461, Saudi Arabia
| | - Rajesh Kumar
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China
| | - Ikram Ali
- School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Sardar Muhammad Hussain
- Department of Mathematical Sciences, Balochistan University of Information Technology, Engineering and Management Sciences, Quetta 87300, Pakistan
| | - Amin Ul Haq
- School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Inayat Khan
- Department of Computer Science, University of Buner, Buner 19290, Pakistan
| | - Aman Ullah
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China
| | - Muhammad Irfan Uddin
- Institute of Computer Science, Kohat University of Science and Technology, Kohat 26000, Pakistan
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Rehman S, Ullah A, Naseem K, Elahi AR, Erum H. Talent acquisition and technology: A step towards sustainable development. Front Psychol 2022; 13:979991. [PMID: 36329757 PMCID: PMC9624245 DOI: 10.3389/fpsyg.2022.979991] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 09/22/2022] [Indexed: 11/15/2022] Open
Abstract
Purpose The purpose of the research is to highlight the use of social media and information technology in employee recruitment by providing a conceptual recruitment model in the aspects of theoretical foundations and empirical evidence on the factors and outcomes leading to the use of social media recruiting technology (SMART). Design/methodology/approach A total of 4,481 organizations are listed as the population of the study, and a total of 589 responses are used in the study for data analysis. Selection of the sample is done based on the simple random sampling technique. Appropriateness of sample size is confirmed with the help of G*Power (3.1.9.2) software, which calculated a sample size of 326 with 99% power, a multiple correlation (R) of 0.30, and at a significance level of 0.05. Findings The paper provides empirical insights into the elements of the extended unified theory of acceptance and use of technology; i.e., performance expectancy, effort expectancy, social influence, facilitating conditions, hedonic motivation, habit, and price value have positive relations with the intention to adopt social media recruiting technology, and the intention impacts use of social media recruiting technology. Furthermore, the use of social media recruiting technology impacts outcome variables, i.e., social media recruiting time, cost, and recruitment quality, which establish the extension of the recruitment model with all factors and outcomes. Originality This study provides a model of employee recruitment to win the battle of acquiring human capital using social media recruiting technology as a step toward sustainable development, which has been conceptually defined and empirically tested. The comprehensiveness of the model has never been discussed in earlier studies. Practical implications Through this research, organizations will get an opportunity to experience enhancement in the scope of recruitment as a whole instead of considering recruitment as a traditional procedure, and the use of information technology can be expanded for progressive measures for future purposes and pandemic situations.
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Affiliation(s)
- Saqib Rehman
- Department of Management Sciences, Lahore College for Women University, Lahore, Pakistan
- *Correspondence: Saqib Rehman,
| | - Aman Ullah
- UVAS Business School, University of Veterinary and Animal Sciences, Lahore, Pakistan
- Department of Management and Marketing, Faculty of Business and Economics, University of Melbourne, Melbourne, VIC, Australia
| | - Khalida Naseem
- Faculty of Economics and Management Science, School of Business Management, Minhaj University, Lahore, Pakistan
| | - Ali Raza Elahi
- Department of Commerce and Finance, Government College University, Lahore, Pakistan
| | - Humaira Erum
- Department of Management Sciences, National University of Modern Languages, Lahore, Pakistan
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Almutairi FM, Ullah A, Althobaiti YS, Irfan HM, Shareef U, Usman H, Ahmed S. A Review on Therapeutic Potential of Natural Phytocompounds for Stroke. Biomedicines 2022; 10:biomedicines10102566. [PMID: 36289828 PMCID: PMC9599280 DOI: 10.3390/biomedicines10102566] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/05/2022] [Accepted: 10/06/2022] [Indexed: 11/16/2022] Open
Abstract
Stroke is a serious condition that results from an occlusion of blood vessels that leads to brain damage. Globally, it is the second highest cause of death, and deaths from strokes are higher in older people than in the young. There is a higher rate of cases in urban areas compared to rural due to lifestyle, food, and pollution. There is no effective single medicine for the treatment of stroke due to the multiple causes of strokes. Thrombolytic agents, such as alteplase, are the main treatment for thrombolysis, while multiple types of surgeries, such ascraniotomy, thrombectomy, carotid endarterectomy, and hydrocephalus, can be performed for various forms of stroke. In this review, we discuss some promising phytocompounds, such as flavone C-glycoside (apigenin-8-C-β-D-glucopyranoside), eriodictyol, rosamirinic acid, 6″-O-succinylapigenin, and allicin, that show effectiveness against stroke. Future study paths are given, as well as suggestions for expanding the use of medicinal plants and their formulations for stroke prevention.
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Affiliation(s)
- Farooq M. Almutairi
- Department of Clinical Laboratories Sciences, College of Applied Medical Sciences, University of Hafr Al-Batin, Hafr Al-Batin 39524, Saudi Arabia
| | - Aman Ullah
- Saba Medical Center, Abu Dhabi P.O. Box 20316, United Arab Emirates
- Correspondence: (A.U.); (S.A.)
| | - Yusuf S. Althobaiti
- Department of Pharmacology and Toxicology, College of Pharmacy, Taif University, Taif 21944, Saudi Arabia
- Addiction and Neuroscience Research Unit, Taif University, Taif 21944, Saudi Arabia
| | | | - Usman Shareef
- College of Pharmaceutical Sciences, Shifa Tameer-e-Millat University, Islamabad 44000, Pakistan
| | - Halima Usman
- College of Pharmaceutical Sciences, Shifa Tameer-e-Millat University, Islamabad 44000, Pakistan
| | - Sagheer Ahmed
- College of Pharmaceutical Sciences, Shifa Tameer-e-Millat University, Islamabad 44000, Pakistan
- Correspondence: (A.U.); (S.A.)
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Khalid M, Anwer W, Adeel M, Shafiq Z, Braga AAC, Assiri MA, Imran M, Ullah A. Exploration of the interesting photovoltaic behavior of the fused benzothiophene dioxide moiety as a core donor with modification in acceptors for high-efficacy organic solar cells. RSC Adv 2022; 12:29010-29021. [PMID: 36320741 PMCID: PMC9552528 DOI: 10.1039/d2ra04473k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 09/05/2022] [Indexed: 11/16/2022] Open
Abstract
Non-fullerene-based chromophores with end-capped acceptor modification used in organic solar cells (OSCs) have proven to offer improved performance. Therefore, eight unique benzothiophene-based molecules (D2-D9) were designed by the end-capped acceptor manipulation of a reference molecule (R1). Density functional theory (DFT) and time-dependent density functional theory (TD-DFT) calculations at the B3LYP level were performed to investigate various parameters such as the optical properties, frontier molecular orbitals (FMOs), transition density matrix (TDM), binding energy, density of states (DOS), open-circuit voltage (V oc), and reorganization energies of electrons (λ e) and holes (λ h), to better understand the optoelectronic properties of the newly designed compounds. All the derivatives had broader absorption spectra of 737.562-700.555 nm with a reduced energy gap of 2.132-1.851 eV compared to those of the reference (719.082 nm), except for D8 and D9. A comparable value of V oc and lower reorganization energies were found in the derivatives compared to those of R1. Within the studied compounds, D3 was predicted to be a good optoelectronic material for environmentally friendly organic solar cells (EFOSCs) because of its superior optoelectronic capabilities, low-energy band gap (1.851 eV), highest λ max values of 794.516 and 744.784 nm in chloroform and the gas phase, respectively, and lowest transition energy (1.561 eV) than those of the reference and the other derivatives. Subsequently, end-capped acceptor modification was proven to be an effective method to achieve desired optoelectronic characteristics.
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Affiliation(s)
- Muhammad Khalid
- Institute of Chemistry, Khwaja Fareed University of Engineering & Information TechnologyRahim Yar Khan64200Pakistan,Centre for Theoretical and Computational Research, Khwaja Fareed University of Engineering & Information TechnologyRahim Yar Khan64200Pakistan
| | - Wajeeha Anwer
- Institute of Chemistry, Khwaja Fareed University of Engineering & Information TechnologyRahim Yar Khan64200Pakistan,Centre for Theoretical and Computational Research, Khwaja Fareed University of Engineering & Information TechnologyRahim Yar Khan64200Pakistan
| | - Muhammad Adeel
- Institute of Chemical Sciences, Gomal UniversityDera Ismail KhanKhyber Pukhtoon KhwaPakistan
| | - Zahid Shafiq
- Institute of Chemical Sciences, Bahauddin Zakariya UniversityMultan 60800Pakistan
| | - Ataualpa A. C. Braga
- Departamento de Química Fundamental, Instituto de Química, Universidade de São PauloAv. Prof. Lineu Prestes, 748São Paulo05508-000Brazil
| | - Mohammed A. Assiri
- Department of Chemistry, Faculty of Science, King Khalid UniversityP. O. Box 9004Abha 61413Saudi Arabia,Research Center for Advanced Materials Science (RCAMS), King Khalid UniversityP. O. Box 9004Abha 61514Saudi Arabia
| | - Muhammad Imran
- Department of Chemistry, Faculty of Science, King Khalid UniversityP. O. Box 9004Abha 61413Saudi Arabia,Research Center for Advanced Materials Science (RCAMS), King Khalid UniversityP. O. Box 9004Abha 61514Saudi Arabia
| | - Aman Ullah
- Department of Agricultural, Food and Nutritional Science, Faculty of Agricultural, Life and Environmental Sciences, University of AlbertaEdmontonABCanada
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Khan N, Ma Z, Ullah A, Polat K. Similarity attributed knowledge graph embedding enhancement for item recommendation. Inf Sci (N Y) 2022. [DOI: 10.1016/j.ins.2022.08.124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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38
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Arfan M, Lashin MMA, Sunthrayuth P, Shah K, Ullah A, Iskakova K, Gorji MR, Abdeljawad T. On nonlinear dynamics of COVID-19 disease model corresponding to nonsingular fractional order derivative. Med Biol Eng Comput 2022; 60:3169-3185. [PMID: 36107356 PMCID: PMC9476458 DOI: 10.1007/s11517-022-02661-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 06/15/2022] [Indexed: 11/26/2022]
Affiliation(s)
- Muhammad Arfan
- Department of Mathematics, University of Malakand, Chakdara, Khyber Pakhtunkhwa Pakistan
| | - Maha M. A. Lashin
- Electrical Engineering Department, College of Engineering, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671 Saudi Arabia
| | - Pongsakorn Sunthrayuth
- Department of Mathematics and Computer Science, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi (RMUTT), Thanyaburi, Pathumthani 12110 Thailand
| | - Kamal Shah
- Department of Mathematics, University of Malakand, Chakdara, Khyber Pakhtunkhwa Pakistan
- Department of Mathematics and Sciences, Prince Sultan University, Riyadh, 11586 Saudi Arabia
| | - Aman Ullah
- Department of Mathematics, University of Malakand, Chakdara, Khyber Pakhtunkhwa Pakistan
| | - Kulpash Iskakova
- Department of Physics and Mathematics, Kazakh National Pedagogical University, Almaty, Kazakhstan
| | - M. R. Gorji
- Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium
| | - Thabet Abdeljawad
- Department of Mathematics and Sciences, Prince Sultan University, Riyadh, 11586 Saudi Arabia
- Department of Medical Research, China Medical University, Taichung, 40402 Taiwan
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Aslam S, Haroon M, Akhtar T, Arshad M, Khalid M, Shafiq Z, Imran M, Ullah A. Synthesis, Characterization, and DFT-Based Electronic and Nonlinear Optical Properties of Methyl 1-(arylsulfonyl)-2-aryl-1H-benzo[d]imidazole-6-carboxylates. ACS Omega 2022; 7:31036-31046. [PMID: 36092624 PMCID: PMC9453983 DOI: 10.1021/acsomega.2c02805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 08/15/2022] [Indexed: 06/15/2023]
Abstract
Herein, a series of N-1-sulfonyl substituted derivatives of 2-substituted benzimidazoles (2a-2e) were designed and synthesized via structural tailoring of the acceptor part of donor-π-acceptor schemes, and their nonlinear optic (NLO) characteristics were reported. The structures of 2a-2e were investigated and their characterization was accomplished by employing spectroscopic procedures, i.e., UV-vis, FT-IR, and 1H and 13C NMR. Further, a density functional theory (DFT) approach was used to calculate UV-vis, vibrational, and 1H and 13C NMR techniques; frontier molecular orbitals (FMOs); global reactivity parameters (GRPs); natural bond orbitals (NBOs); optical and vibrational analysis; and nonlinear optics (NLO). The most promising results were obtained for 6-nitro-2-(4-nitrophenyl)-1-(4-nitrophenylsulfonyl)-1H-benzo[d]imidazole among entitled compounds, as it exhibited the highest ⟨α⟩ and βtot values, showing it is an eye-catching NLO material. This DFT study evokes the interest of researchers regarding the development of benzimidazole-based tempting NLO compounds that could be beneficial in modern hi-tech applications.
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Affiliation(s)
- Shumaila Aslam
- Department
of Chemistry, Mirpur University of Science
and Technology (MUST), 10250 Mirpur, Azad Jammu and
Kashmir, Pakistan
| | - Muhammad Haroon
- Department
of Chemistry, Mirpur University of Science
and Technology (MUST), 10250 Mirpur, Azad Jammu and
Kashmir, Pakistan
- Department
of Chemistry, Government Major Muhammad
Afzal Khan (Shaheed), Boys Degree College Afzalpur, Mirpur (Affiliated
with Mirpur University of Science and Technology (MUST)), 10250 Mirpur, Azad Jammu and Kashmir, Pakistan
| | - Tashfeen Akhtar
- Department
of Chemistry, Mirpur University of Science
and Technology (MUST), 10250 Mirpur, Azad Jammu and
Kashmir, Pakistan
| | - Muhammad Arshad
- Department
of Chemical Engineering, College of Engineering, King Khalid University, Abha 62529, Saudi Arabia
| | - Muhammad Khalid
- Institute
of Chemistry, Khwaja Fareed University of
Engineering and Information Technology, Rahim Yar Khan 64200, Pakistan
- Centre
for Theoretical and Computational Research, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan 64200, Pakistan
| | - Zahid Shafiq
- Institute
of Chemical Sciences, Bahauddin Zakariya
University, Multan 60800, Pakistan
| | - Muhammad Imran
- Department
of Chemistry, Faculty of Science, King Khalid
University, Abha 61413, P.O. Box 9004, Saudi Arabia
| | - Aman Ullah
- Department
of Agricultural, Food and Nutritional Science, Faculty of Agricultural,
Life and Environmental Sciences, University
of Alberta, Edmonton, Alberta T6G 2R3, Canada
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Shah D, Iqbal A, Alshehri FS, Ullah A, Ali G, Muhammad T, Ullah R, Sewell RDE, Althobaiti YS. The Neuroprotective Propensity of Organic Extracts of Acacia stenophylla Bark and Their Effectiveness Against Scopolamine-/Diazepam-Induced Amnesia in Mice. J Inflamm Res 2022; 15:4785-4802. [PMID: 36032937 PMCID: PMC9416337 DOI: 10.2147/jir.s376242] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 08/10/2022] [Indexed: 11/23/2022] Open
Abstract
Background Alzheimer's disease (AD) is a neurodegenerative disorder that is more prevalent in the elderly. There is extensive literature on using Acacia species against central nervous system disorders, although Acacia stenophylla has not been investigated for any neuroprotective potential. The purpose of the study was to elucidate the ameliorative effect of ethyl acetate (ASEE) and butanol (ASB) extracts from the bark of A. stenophylla on memory deficits and cognitive dysfunction in scopolamine- or diazepam-induced amnesia in mice. Methods The phytochemical constituents of the extracts of A. stenophylla were determined by GC-MS and the in vitro anticholinesterase plus antioxidant activities were also evaluated. Anti-amnesic effects were determined employing the open field test, elevated plus maze (EPM), Morris water maze (MWM), and Y-maze paradigms. Results The in vitro cholinesterase assays disclosed a concentration-dependent inhibition of both AChE and BuChE with IC50 values of 28.48 and 44.86 µg/mL for the ASEE extract and 32.04 and 50.26 µg/mL for the ASB extract against AChE and BuChE respectively. DPPH and H2O2 antioxidant assays revealed respective IC50 values for the ASEE extract of 28.04 and 59.84 µg/mL, plus 32.77 and 64.65 µg/mL for ASB extract. The findings revealed that both extracts possessed substantial antioxidant properties. Furthermore, these fractions restored scopolamine- and diazepam-induced memory deficits in a dose-dependent manner, as observed by a significant decrease in the transfer latency in EPM, reduction in escape latency, added time spent in the target quadrant in the MWM, and elevated spontaneous alternation behavior (SAB) in the Y-maze test. Conclusion The ameliorative effect of A. stenophylla on scopolamine- and diazepam-induced amnesia can be attributed to antioxidant and anticholinesterase activity. Consequently, the use of A. stenophylla might be exploited in the alleviation of oxidative stress and the management of AD.
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Affiliation(s)
- Dawood Shah
- Department of Botany, Islamia College Peshawar, Peshawar, Pakistan
| | - Arshad Iqbal
- Department of Botany, Islamia College Peshawar, Peshawar, Pakistan
| | - Fahad S Alshehri
- Department of Pharmacology and Toxicology, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Aman Ullah
- College of Pharmaceutical Sciences, Shifa Tameer-e-Millat University, Islamabad, Pakistan
| | - Gowhar Ali
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan
| | - Tahir Muhammad
- Molecular Neuropsychiatry and Development (MiND) Lab, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada.,Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Rahim Ullah
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan.,Department of Pharmacy, Faculty of Life Sciences, Sarhad University of Science and Information Technology, Peshawar, Khyber Pakhtunkhwa, Pakistan
| | - Robert D E Sewell
- Cardiff School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, CF10 3NB, UK
| | - Yusuf S Althobaiti
- Department of Pharmacology and Toxicology, College of Pharmacy, Taif University, Taif, Saudi Arabia.,Addiction and Neuroscience Research Unit, Taif University, Taif, Saudi Arabia
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Wang H, Ullah A. Synthesis and Evaluation of Thermoresponsive Renewable Lipid-Based Block Copolymers for Drug Delivery. Polymers (Basel) 2022; 14:polym14173436. [PMID: 36080511 PMCID: PMC9460350 DOI: 10.3390/polym14173436] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 08/18/2022] [Accepted: 08/21/2022] [Indexed: 11/16/2022] Open
Abstract
Polymeric micelle forming from self-assembly of amphiphilic macromolecules is one of the most potent drug delivery systems. Fatty acids, naturally occurring hydrophobic lipid components, can be considered as potential candidates for the fabrication of block copolymer micelles. However, examples of synthesis of responsive block copolymers using renewable fatty acids are scarce. Herein, we report the synthesis, characterization and testing of block copolymer micelles composed of a renewable fatty-acid-based hydrophobic block and thermoresponsive hydrophilic block for controlled drug delivery. The block copolymers of functionalized fatty acid and poly(N-isopropylacrylamide) (PNIPAM) were prepared via consecutive microwave-assisted reversible addition fragmentation chain transfer (RAFT) polymerization. The block copolymers with variable hydrophobic block length self-assembled in aqueous media and formed spherical nanoparticles of ~30 nm with low critical micelle concentration (CMC). To demonstrate the proof-of-concept, carbamazepine (CBZ) was used as a hydrophobic model drug to evaluate the performance of these micelles as nanocarriers. The in vitro drug release tests were carried out below (25 °C) and above (37 °C) the lower critical solution temperature (LCST) of the block copolymer. The drug release showed obvious temperature-triggered response and an accelerated drug release at 37 °C.
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Ahmad T, Javed A, Khan T, Althobaiti YS, Ullah A, Almutairi FM, Shah AJ. Investigation into the Antihypertensive Effects of Diosmetin and Its Underlying Vascular Mechanisms Using Rat Model. Pharmaceuticals (Basel) 2022; 15:ph15080951. [PMID: 36015099 PMCID: PMC9416473 DOI: 10.3390/ph15080951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/12/2022] [Accepted: 07/26/2022] [Indexed: 11/16/2022] Open
Abstract
Objective: Diosmetin is a flavonoid that is found in many important medicinal plants that have antihypertensive therapeutic potential. Diosmetin has been shown to have antiplatelet, anti-inflammatory and antioxidant properties, which suggests that it could be a potential candidate for use in antihypertensive therapy. Methods: In vivo and in vitro methods were used for our investigation into the antihypertensive effects of diosmetin. Results: Diosmetin significantly decreased the mean arterial pressure (MAP). The effects of diosmetin on the MAP and heart rate were more pronounced in hypertensive rats. To explore the involvement of the muscarinic receptors-linked NO pathway, Nω-nitro-L-arginine methyl ester (L-NAME) and atropine were pre-administered in vivo. The pretreatment with L-NAME did not significantly change the effects of diosmetin on the MAP by excluding the involvement of NO. Unlike L-NAME, the atropine pretreatment reduced the effects of diosmetin on the MAP, which demonstrated the role of the muscarinic receptors. In the in vitro study, diosmetin at lower concentrations produced endothelium-dependent and -independent (at higher concentrations) vasorelaxation, which was attenuated significantly by the presence of atropine and indomethacin but not L-NAME. Diosmetin was also tested for high K+-induced contractions. Diosmetin induced significant relaxation (similar to verapamil), which indicated its Ca2+ antagonistic effects. This was further confirmed by diosmetin shifting the CaCl2 CRCs toward the right due to its suppression of the maximum response. Diosmetin also suppressed phenylephrine peak formation, which indicated its antagonist effects on the release of Ca2+. Moreover, BaCl2 significantly inhibited the effects of diosmetin, followed by 4-AP and TEA, which suggested that the K+ channels had a role as well. Conclusions: The obtained data showed the Ca2+ channel antagonism, potassium channel activation and antimuscarinic receptor-linked vasodilatory effects of diosmetin, which demonstrated its antihypertensive potential.
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Affiliation(s)
- Taseer Ahmad
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, University Road, Abbottabad 22060, Pakistan; (T.A.); (A.J.); (T.K.)
- Laboratory of Cardiovascular Research and Integrative Pharmacology, College of Pharmacy, University of Sargodha, Sargodha 40100, Pakistan
| | - Adil Javed
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, University Road, Abbottabad 22060, Pakistan; (T.A.); (A.J.); (T.K.)
| | - Taous Khan
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, University Road, Abbottabad 22060, Pakistan; (T.A.); (A.J.); (T.K.)
| | - Yusuf S. Althobaiti
- Department of Pharmacology and Toxicology, College of Pharmacy, Taif University, Taif 21944, Saudi Arabia;
- Addiction and Neuroscience Research Unit, Taif University, Taif 21944, Saudi Arabia
| | - Aman Ullah
- College of Pharmaceutical Sciences, Shifa Tameer-e-Millat University, Islamabad 44000, Pakistan;
| | - Farooq M. Almutairi
- Department of Clinical Laboratories Sciences, College of Applied Medical Sciences, University of Hafr Al-Batin, Hafr Al-Batin 39524, Saudi Arabia
- Correspondence: (F.M.A.); (A.J.S.)
| | - Abdul Jabbar Shah
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, University Road, Abbottabad 22060, Pakistan; (T.A.); (A.J.); (T.K.)
- Correspondence: (F.M.A.); (A.J.S.)
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Ullah A, Al Kury LT, Althobaiti YS, Ali T, Shah FAL. Benzimidazole Derivatives as New Potential NLRP3 Inflammasome Inhibitors That Provide Neuroprotection in a Rodent Model of Neurodegeneration and Memory Impairment. J Inflamm Res 2022; 15:3873-3890. [PMID: 35845091 PMCID: PMC9286489 DOI: 10.2147/jir.s351913] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 06/16/2022] [Indexed: 11/23/2022] Open
Abstract
Objective The study investigated the effect of newly synthesized benzimidazole derivatives against ethanol-induced neurodegeneration. According to evidence, ethanol consumption may cause a severe insult to the central nervous system (CNS), resulting in mental retardation, neuronal degeneration, and oxidative stress. Targeting neuroinflammation and oxidative stress may be a useful strategy for preventing ethanol-induced neurodegeneration. Methodology Firstly, the newly synthesized compounds were subjected to molecular simulation and docking in order to predict ligand binding status. Later, for in vivo observations, adult male Sprague Dawley rats were used for studying behavioral and oxidative stress markers. ELIZA kits were used to analyse tumour necrosis factor-alpha (TNF-), nuclear factor-B (NF-B), interleukin (IL-18), and pyrin domain-containing protein 3 (NLRP3) expression, while Western blotting was used to measure IL-1 and Caspase-1 expression. Results Our findings suggested that altered levels of antioxidant enzymes were associated with elevated levels of TNF-α, NF-B, IL-1, IL-18, Caspase-1, and NLRP3 in the ethanol-treated group. Furthermore, ethanol also caused memory impairment in rats, as measured by behavioural tests. Pretreatment using selected benzimidazole significantly increased the combat of the brain against ethanol-induced oxidative stress. The neuroprotective effects of benzimidazole derivatives were promoted by their free radical scavenging activity, augmentation of endogenous antioxidant proteins (GST, GSH), and amelioration of lipid peroxide (LPO) and other pro-inflammatory mediators. Molecular docking and molecular simulation studies further supported our hypothesis that the synthetic compounds Ca and Cb had an excellent binding affinity with proper bond formation with their targets (TNF-α and NLRP3). Conclusion It is revealed that these benzimidazole derivatives can reduce ethanol-induced neuronal toxicity by regulating the expression of cytokines, antioxidant enzymes, and the inflammatory cascade.
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Affiliation(s)
- Aman Ullah
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Riphah International University, Islamabad, Pakistan
| | - Lina Tariq Al Kury
- College of Natural and Health Sciences, Zayed University, Abu Dhabi, United Arab Emirates
| | - Yusuf S Althobaiti
- Department of Pharmacology and Toxicology, College of Pharmacy, Taif University, Taif, 21944, Saudi Arabia.,Addiction and Neuroscience Research Unit, Taif University, Taif, 21944, Saudi Arabia
| | - Tahir Ali
- University of Calgary, Calgary, AB, Canada
| | - Fawad ALi Shah
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Riphah International University, Islamabad, Pakistan
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Khalid M, Zafar M, Hussain S, Asghar MA, Khera RA, Imran M, Abookleesh FL, Akram MY, Ullah A. Influence of End-Capped Modifications in the Nonlinear Optical Amplitude of Nonfullerene-Based Chromophores with a D-π-A Architecture: A DFT/TDDFT Study. ACS Omega 2022; 7:23532-23548. [PMID: 35847337 PMCID: PMC9281312 DOI: 10.1021/acsomega.2c02052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Nonlinear optical (NLO) materials have several uses in many fields such as solid physics, biology, medicine, nuclear physics, and material research. Therefore, a series of nonfullerene-based derivatives (CC10D1-CC10D8) with a D-π-A configuration was planned for the NLO investigation using CC10R as the reference molecule with structural alternations at acceptor moieties. Natural bonding orbital (NBO), UV-vis spectra, frontier molecular orbitals (FMOs), global reactivity parameters (GRPs), transition density matrix (TDM), and density of states (DOS) were analyzed using the M06/6-311G(d,p) functional in chloroform solvent to understand the NLO responses of CC10R and CC10D1-CC10D8. The highest occupied molecular orbital (HOMO)-lowest unoccupied molecular orbital (LUMO) band gaps of CC10D1-CC10D6 were illustrated to be lower than that of CC10R, with the larger bathochromic shift (726.408-782.674 nm) resulting in a significant NLO response. Along with the band gap, the FMO method also identified an efficient interfacial charge transfer from D to A moieties via a π-bridge, which was further supported by the DOS and TDM map. Moreover, NBO calculations demonstrated that extended hyperconjugation and strong internal molecular interactions were important in their stabilization. The dipole moment (μ), linear polarizability ⟨α⟩, hyperpolarizability (βtotal), and second-order hyperpolarizability (γtotal.) were studied for CC10R and CC10D1-CC10D8. Among all of the derivatives, CC10D2 was proven to be the most appropriate candidate because of its suitable NLO behavior such as being well-supported by a reduced band gap (2.093 eV) and having a suitable maximum absorption wavelength (782.674 nm). Therefore, CC10D2 was reported to have a greater value of first hyperpolarizability (208 659.330 a.u.) compared with other derivatives and CC10R. For the second hyperpolarizability, a greater value was obtained for CC10R (5.855 × 107 a.u.), and its derivatives showed results comparable to that of the parent chromophore for γtotal. This theoretical framework reveals that structural customization with different acceptor units plays a significant role in obtaining attractive NLO materials for optoelectronic applications.
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Affiliation(s)
- Muhammad Khalid
- Research
Center for Theoretical and Computational Research, Khwaja Fareed University of Engineering & Information Technology, Rahim Yar Khan 64200, Pakistan
- Institute
of Chemistry, Khwaja Fareed University of
Engineering & Information Technology, Rahim Yar Khan 64200, Pakistan
| | - Maryam Zafar
- Research
Center for Theoretical and Computational Research, Khwaja Fareed University of Engineering & Information Technology, Rahim Yar Khan 64200, Pakistan
- Institute
of Chemistry, Khwaja Fareed University of
Engineering & Information Technology, Rahim Yar Khan 64200, Pakistan
| | - Shabbir Hussain
- Research
Center for Theoretical and Computational Research, Khwaja Fareed University of Engineering & Information Technology, Rahim Yar Khan 64200, Pakistan
- Institute
of Chemistry, Khwaja Fareed University of
Engineering & Information Technology, Rahim Yar Khan 64200, Pakistan
| | - Muhammad Adnan Asghar
- Department
of Chemistry, Division of Science and Technology, University of Education, Lahore 54770, Pakistan
| | - Rasheed Ahmad Khera
- Department
of Chemistry, University of Agriculture, Faisalabad 38000, Pakistan
| | - Muhammad Imran
- Department
of Chemistry, Faculty of Science, King Khalid
University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Frage Lhadi Abookleesh
- Department
of Agricultural, Food and Nutritional Science, Faculty of Agricultural,
Life and Environmental Sciences, University
of Alberta, Edmonton, AB T6G 2P5, Canada
| | - Muhammad Yasir Akram
- Research
Center for Theoretical and Computational Research, Khwaja Fareed University of Engineering & Information Technology, Rahim Yar Khan 64200, Pakistan
- Institute
of Chemistry, Khwaja Fareed University of
Engineering & Information Technology, Rahim Yar Khan 64200, Pakistan
| | - Aman Ullah
- Department
of Agricultural, Food and Nutritional Science, Faculty of Agricultural,
Life and Environmental Sciences, University
of Alberta, Edmonton, AB T6G 2P5, Canada
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Ullah A, Wang T, Yao W. Nonlinear modal regression for dependent data with application for predicting COVID-19. J R Stat Soc Ser A Stat Soc 2022; 185:1424-1453. [PMID: 36105847 PMCID: PMC9461089 DOI: 10.1111/rssa.12849] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 02/18/2022] [Indexed: 05/07/2023]
Abstract
In this paper, under the stationary α-mixing dependent samples, we develop a novel nonlinear modal regression for time series sequences and establish the consistency and asymptotic property of the proposed nonlinear modal estimator with a shrinking bandwidth h under certain regularity conditions. The asymptotic distribution is shown to be identical to the one derived from the independent observations, whereas the convergence rate (n h 3 in which n is the sample size) is slower than that in the nonlinear mean regression. We numerically estimate the proposed nonlinear modal regression model by the use of a modified modal expectation-maximization (MEM) algorithm in conjunction with Taylor expansion. Monte Carlo simulations are presented to demonstrate the good finite sample (prediction) performance of the newly proposed model. We also construct a specified nonlinear modal regression to match the available daily new cases and new deaths data of the COVID-19 outbreak at the state/region level in the United States, and provide forward predictions up to 130 days ahead (from 24 August 2020 to 31 December 2020). In comparison to the traditional nonlinear regressions, the suggested model can fit the COVID-19 data better and produce more precise predictions. The prediction results indicate that there are systematic differences in spreading distributions among states/regions. For most western and eastern states, they have many serious COVID-19 burdens compared to Midwest. We hope that the built nonlinear modal regression can help policymakers to implement fast actions to curb the spread of the infection, avoid overburdening the health system and understand the development of COVID-19 from some points.
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Affiliation(s)
- Aman Ullah
- Department of EconomicsUniversity of CaliforniaRiversideCaliforniaUSA
| | - Tao Wang
- Department of EconomicsUniversity of CaliforniaRiversideCaliforniaUSA
- Department of EconomicsUniversity of VictoriaVictoriaBritish ColumbiaCanada
| | - Weixin Yao
- Department of StatisticsUniversity of CaliforniaRiversideCaliforniaUSA
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Alamgeer, Asif H, Chohan TA, Irfan HM, Asim MH, Bukhari SNA, Younis W, Althobaiti YS, Ullah A, Khan AQ, Hakami AY. Ex vivo, in vitro, and in silico approaches to unveil the mechanisms underlying vasorelaxation effect of Mentha Longifolia (L.) in porcine coronary artery. Biomed Pharmacother 2022; 153:113298. [PMID: 35759866 DOI: 10.1016/j.biopha.2022.113298] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 06/09/2022] [Accepted: 06/13/2022] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVE Mentha (M.) longifolia (L.) is traditionally used for various ailments. The current study was intended to explore the underlying vasorelaxation mechanisms of M. longifolia. MATERIAL AND METHODS Aqueous-methanol extract from the aerial parts of M. longifolia was prepared and subjected to activity-guided fractionation. The vasorelaxant activity was performed using porcine coronary arteries with intact and denuded endothelium. In-vitro PDE inhibitory activity of the active fraction was carried out using the radio-enzymatic assay. The active fraction was also subjected to GCMS. Docking and molecular dynamic simulation studies were also performed RESULT: We had observed that aqueous-methanolic extract induced relaxation in the coronary artery in a dose-dependent manner when the endothelium was intact and denuded. n-butanol fraction (MLB) has produced a maximum effect, and it was selected for mechanistic studies. MLB has significantly enhanced the relaxation produced by cAMP and cGMP, elevating atrial natriuretic peptide, sodium nitroprusside, isoproterenol, and forskolin. The pre-treatment with MLB inhibited the contractile response produced by KCl, U46619, and CaCl2 in without endothelium rings. MLB has non-selectively inhibited the PDE isoforms. GCMS analysis of MLB has revealed the presence of menthol, thymol, and carvacrol in the active fraction. Docking and molecular dynamic simulation studies have indicated that thymol can be a competitive inhibitor for PDE1. CONCLUSION It is postulated that an n-butanol fraction of Mentha longifolia produced endothelium-independent relaxation due to increased levels of cAMP and cGMP caused by the inhibition of various PDEs.
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Affiliation(s)
- Alamgeer
- Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan; College of Pharmacy University of Sargodha, Sargodha, Pakistan.
| | - Hira Asif
- Lahore Pharmacy College, Lahore Medical and Dental College, Lahore, 54850 Lahore, Pakistan
| | - Tahir Ali Chohan
- Institute of Pharmaceutical Sciences, the University of Veterinary and Animal Sciences, Lahore, Pakistan
| | | | | | - Syed Nasir Abbas Bukhari
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University, Sakaka, Al Jouf 72388, Saudi Arabia
| | - Waqas Younis
- Faculty of Pharmacy, the University of Lahore, Pakistan
| | - Yusuf S Althobaiti
- Department of Pharmacology and Toxicology, College of Pharmacy, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia; Addiction and Neuroscience Research Unit, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia.
| | - Aman Ullah
- College of Pharmaceutical Sciences, Shifa Tameer-e-Millat University, Islamabad 44000, Pakistan
| | - Abdul Qayyum Khan
- School of Pharmacy, University of Management and Technology Lahore, Pakistan
| | - Alqassem Y Hakami
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia; King Abdullah International Medical Research Center, Jeddah, Saudi Arabia
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Ullah A, Hoang-Trong MT, Lederer WJ, Winslow RL, Jafri MS. Critical Requirements for the Initiation of a Cardiac Arrhythmia in Rat Ventricle: How Many Myocytes? Cells 2022; 11:cells11121878. [PMID: 35741007 PMCID: PMC9221049 DOI: 10.3390/cells11121878] [Citation(s) in RCA: 3] [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: 04/29/2022] [Revised: 06/03/2022] [Accepted: 06/07/2022] [Indexed: 11/16/2022] Open
Abstract
Cardiovascular disease is the leading cause of death worldwide due in a large part to arrhythmia. In order to understand how calcium dynamics play a role in arrhythmogenesis, normal and dysfunctional Ca2+ signaling in a subcellular, cellular, and tissued level is examined using cardiac ventricular myocytes at a high temporal and spatial resolution using multiscale computational modeling. Ca2+ sparks underlie normal excitation-contraction coupling. However, under pathological conditions, Ca2+ sparks can combine to form Ca2+ waves. These propagating elevations of (Ca2+)i can activate an inward Na+-Ca2+ exchanger current (INCX) that contributes to early after-depolarization (EADs) and delayed after-depolarizations (DADs). However, how cellular currents lead to full depolarization of the myocardium and how they initiate extra systoles is still not fully understood. This study explores how many myocytes must be entrained to initiate arrhythmogenic depolarizations in biophysically detailed computational models. The model presented here suggests that only a small number of myocytes must activate in order to trigger an arrhythmogenic propagating action potential. These conditions were examined in 1-D, 2-D, and 3-D considering heart geometry. The depolarization of only a few hundred ventricular myocytes is required to trigger an ectopic depolarization. The number decreases under disease conditions such as heart failure. Furthermore, in geometrically restricted parts of the heart such as the thin muscle strands found in the trabeculae and papillary muscle, the number of cells needed to trigger a propagating depolarization falls even further to less than ten myocytes.
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Affiliation(s)
- Aman Ullah
- School of Systems Biology, Krasnow Institute for Advanced Study, George Mason University, Fairfax, VA 22030, USA; (A.U.); (M.T.H.-T.)
| | - Minh Tuan Hoang-Trong
- School of Systems Biology, Krasnow Institute for Advanced Study, George Mason University, Fairfax, VA 22030, USA; (A.U.); (M.T.H.-T.)
| | - William Jonathan Lederer
- Biomedical Engineering and Technology, University of Maryland School of Medicine, Baltimore, MD 21201, USA;
| | - Raimond L. Winslow
- Institute for Computational Medicine and Department of Biomedical Engineering, The Johns Hopkins University, Baltimore, MD 20218, USA;
- The Roux Institute, Northeastern University, Portland, ME 04102, USA
| | - Mohsin Saleet Jafri
- School of Systems Biology, Krasnow Institute for Advanced Study, George Mason University, Fairfax, VA 22030, USA; (A.U.); (M.T.H.-T.)
- Biomedical Engineering and Technology, University of Maryland School of Medicine, Baltimore, MD 21201, USA;
- Institute for Computational Medicine and Department of Biomedical Engineering, The Johns Hopkins University, Baltimore, MD 20218, USA;
- Correspondence: ; Tel.: +1-703-993-8420
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Naz S, Al Kury LT, Nadeem H, Shah FA, Ullah A, Paracha RZ, Imran M, Li S. Synthesis, In Silico and Pharmacological Evaluation of New Thiazolidine-4-Carboxylic Acid Derivatives Against Ethanol-Induced Neurodegeneration and Memory Impairment. J Inflamm Res 2022; 15:3643-3660. [PMID: 35783245 PMCID: PMC9241999 DOI: 10.2147/jir.s357082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 06/04/2022] [Indexed: 11/23/2022] Open
Abstract
Introduction Several studies revealed that alcohol utilization impairs memory in adults; however, the underlying mechanism is still unclear. The production of inflammatory markers and reactive oxygen species (ROS) plays a major role in neurodegeneration, which leads to memory impairment. Therefore, targeting neuroinflammation and oxidative distress could be a useful strategy for abrogating the hallmarks of ethanol-induced neurodegeneration. Moreover, several studies have demonstrated multiple biological activities of thiazolidine derivatives including neuroprotection. Methods In the current study, we synthesized ten (10) new thiazolidine-4-carboxylic acid derivatives (P1-P10), characterized their synthetic properties using proton nuclear magnetic resonance (1H-NMR) and carbon-13 NMR, and further investigated the neuroprotective potential of these compounds in an ethanol-induced neuroinflammation model. Results Our results suggested altered levels of antioxidant enzymes associated with an elevated level of tumor necrosis factor-alpha (TNF-α), nuclear factor-κB (p-NF-κB), pyrin domain-containing protein 3 (NLRP3), and cyclooxygenase-2 (COX-2) in ethanol-treated animals. Ethanol treatment also led to memory impairment in rats, as assessed by behavioral tests. To further support our notion, we performed molecular docking studies, and all synthetic compounds exhibited a good binding affinity with a fair bond formation with selected targets (NF-κB, TLR4, NLRP3, and COX-2). Discussion Overall, our results revealed that these derivatives may be beneficial in reducing neuroinflammation by acting on different stages of inflammation. Moreover, P8 and P9 treatment attenuated the neuroinflammation, oxidative stress, and memory impairment caused by ethanol.
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Affiliation(s)
- Shagufta Naz
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Islamabad, 44000, Pakistan
- State Key Laboratory of Oncogenomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School, Peking University, Shenzhen, People’s Republic of China
| | - Lina Tariq Al Kury
- College of Natural and Health Sciences, Zayed University, Abu Dhabi, 49153, United Arab Emirates
| | - Humaira Nadeem
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Islamabad, 44000, Pakistan
- Correspondence: Humaira Nadeem, Riphah Institute of Pharmaceutical Sciences, Riphah International University, Islamabad, 44000, Pakistan, Tel +92 51-2891835, Fax +92 51-8350180, Email
| | - Fawad Ali Shah
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Islamabad, 44000, Pakistan
| | - Aman Ullah
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Islamabad, 44000, Pakistan
| | - Rehan Zafar Paracha
- Research Center for Modeling & Simulation (RCMS), National University of Sciences and Technology (NUST), Islamabad, 44000, Pakistan
| | - Muhammad Imran
- Department of Pharmacy, IQRA University, Islamabad, 44000, Pakistan
| | - Shupeng Li
- State Key Laboratory of Oncogenomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School, Peking University, Shenzhen, People’s Republic of China
- Shupeng Li, State Key Laboratory of Oncogenomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School, Peking University, Shenzhen, People’s Republic of China, Email
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Wang J, Singer SD, Souto BA, Asomaning J, Ullah A, Bressler DC, Chen G. Current progress in lipid-based biofuels: Feedstocks and production technologies. Bioresour Technol 2022; 351:127020. [PMID: 35307524 DOI: 10.1016/j.biortech.2022.127020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 03/11/2022] [Accepted: 03/13/2022] [Indexed: 06/14/2023]
Abstract
The expanding use of fossil fuels has caused concern in terms of both energy security and environmental issues. Therefore, attempts have been made worldwide to promote the development of renewable energy sources, among which biofuel is especially attractive. Compared to other biofuels, lipid-derived biofuels have a higher energy density and better compatibility with existing infrastructure, and their performance can be readily improved by adjusting the chemical composition of lipid feedstocks. This review thus addresses the intrinsic interactions between lipid feedstocks and lipid-based biofuels, including biodiesel, and renewable equivalents to conventional gasoline, diesel, and jet fuel. Advancements in lipid-associated biofuel technology, as well as the properties and applicability of various lipid sources in terms of biofuel production, are also discussed. Furthermore, current progress in lipid production and profile optimization in the context of plant lipids, microbial lipids, and animal fats are presented to provide a wider context of lipid-based biofuel technology.
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Affiliation(s)
- Juli Wang
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G 2P5, Canada
| | - Stacy D Singer
- Agriculture and Agri-Food Canada, Lethbridge Research and Development Centre, Lethbridge, Alberta T1J 4B1, Canada
| | - Bernardo A Souto
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G 2P5, Canada
| | - Justice Asomaning
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G 2P5, Canada
| | - Aman Ullah
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G 2P5, Canada
| | - David C Bressler
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G 2P5, Canada
| | - Guanqun Chen
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G 2P5, Canada.
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Ullah R, Badshah W, Ali G, Ullah A, Khan SU, Ahmad N, Shahid M, Naveed M, Ullah S, Bangash SA, Althobaiti YS. Cassia artemisiodes attenuates nociceptive and diabetes-induced neuropathic pain modalities apropos antioxidant and anti-inflammatory mechanisms. Biomed Pharmacother 2022; 149:112834. [PMID: 35339108 DOI: 10.1016/j.biopha.2022.112834] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 03/15/2022] [Accepted: 03/16/2022] [Indexed: 11/02/2022] Open
Abstract
Cassia plants have a considerable position in conventional systems of medicine. The possible anti-nociceptive, anti-inflammatory, and anti-neuropathic properties of Cassia artemisiodes (CAD) extract were tested using the standard animal models. In this study, in vitro antioxidant, cyclooxygenase (COX-1 and 2), and 5-lipoxygenase (5-LOX) inhibitory assays were performed. The anti-inflammatory activity was evaluated using carrageenan, histamine, and serotonin-induced paw edema models. Antipyretic activity, thermally and chemically-induced nociception, and naloxone antagonistic activities were carried out. The CAD extract was tested for anti-neuropathic activity in the streptozotocin-induced diabetic neuropathy model. Suppressing the effect of CAD extract on the mRNA level of inducible nitric oxide synthase (iNOS), COX-2, and pro-inflammatory cytokines (TNF-α, IL-1β, IL-6) was determined by performing RT-PCR. The CAD extract inhibited COX-2 and 5-LOX enzymes, paw inflammation, and reduced nociceptive behaviors. The mRNA gene expression of iNOS, COX-2, and inflammatory cytokines was reduced significantly with increased DPPH scavenging activity. The extract significantly reduced the diabetes-induced neuropathic pain. In a nutshell, these results recommended that the CAD extract has anti-nociceptive and anti-neuropathic activities due to inhibition of inflammatory and oxidative signaling.
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Affiliation(s)
- Rahim Ullah
- Faculty of Life Science, Department of Pharmacy Sarhad University of Science and Information Technology, Peshawar, Khyber Pakhtunkhwa, Pakistan; Department of Pharmacy, University of Peshawar, Peshawar 25120, Khyber Pakhtunkhwa, Pakistan.
| | - Waseem Badshah
- Department of Pharmacy, Abdul Wali Khan University, Mardan, Khyber Pakhtunkhwa, Pakistan.
| | - Gowhar Ali
- Department of Pharmacy, University of Peshawar, Peshawar 25120, Khyber Pakhtunkhwa, Pakistan; The Ken and Ruth Davee Department of Neurology and Clinical Neurosciences Northwestern University Feinberg School of Medicine, Tarry Building, Room 13-715 300 East Superior St., Chicago IL 60611, USA.
| | - Aman Ullah
- College of Pharmaceutical Sciences, Shifa Tameer-e-Millat University, Islamabad 44000, Pakistan.
| | - Saleem Ullah Khan
- Department of Pharmacy, Abdul Wali Khan University, Mardan, Khyber Pakhtunkhwa, Pakistan.
| | - Nisar Ahmad
- Faculty of Pharmacy, Grand Asian University Sialkot, Punjab, Pakistan.
| | - Muhammad Shahid
- Department of Pharmacy, Institute of Integrative Biosciences, CECOS University of IT and Emerging Sciences, Peshawar, Khyber Pakhtunkhwa, Pakistan.
| | - Muhammad Naveed
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan.
| | - Sami Ullah
- Department of Pharmacy, University of Peshawar, Peshawar 25120, Khyber Pakhtunkhwa, Pakistan.
| | - Sudhair Abbas Bangash
- Faculty of Life Science, Department of Pharmacy Sarhad University of Science and Information Technology, Peshawar, Khyber Pakhtunkhwa, Pakistan.
| | - Yusuf S Althobaiti
- Department of Pharmacology and Toxicology, College of Pharmacy, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia; Addiction and Neuroscience Research Unit, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia.
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