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Yang L, Shakeel Q, Xu X, Ali L, Chen Z, Mubeen M, Sohail MA, IfItikhar Y, Kumar A, Solanki MK, Zhou Y, Zhao D, Alharbi NK, Wang J. Optimized submerged batch fermentation for metabolic switching in Streptomyces yanglinensis 3-10 providing platform for reveromycin A and B biosynthesis, engineering, and production. Front Microbiol 2024; 15:1378834. [PMID: 38784807 PMCID: PMC11112568 DOI: 10.3389/fmicb.2024.1378834] [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: 01/30/2024] [Accepted: 04/09/2024] [Indexed: 05/25/2024] Open
Abstract
The cultivation system requires that the approach providing biomass for all types of metabolic analysis is of excellent quality and reliability. This study was conducted to enhance the efficiency and yield of antifungal substance (AFS) production in Streptomyces yanglinensis 3-10 by optimizing operation conditions of aeration, agitation, carbon source, and incubation time in a fermenter. Dissolved oxygen (DO) and pH were found to play significant roles in AFS production. The optimum pH for the production of AFS in S. yanglinensis 3-10 was found to be 6.5. As the AFS synthesis is generally thought to be an aerobic process, DO plays a significant role. The synthesis of bioactive compounds can vary depending on how DO affects growth rate. This study validates that the high growth rate and antifungal activity required a minimum DO concentration of approximately 20% saturation. The DO supply in a fermenter can be raised once agitation and aeration have been adjusted. Consequently, DO can stimulate the development of bacteria and enzyme production. A large shearing effect could result from the extreme agitation, harming the cell and deactivating its products. The highest inhibition zone diameter (IZD) was obtained with 3% starch, making starch a more efficient carbon source than glucose. Temperature is another important factor affecting AFS production. The needed fermentation time would increase and AFS production would be reduced by the too-low operating temperature. Furthermore, large-scale fermenters are challenging to manage at temperatures that are far below from room temperature. According to this research, 28°C is the ideal temperature for the fermentation of S. yanglinensis 3-10. The current study deals with the optimization of submerged batch fermentation involving the modification of operation conditions to effectively enhance the efficiency and yield of AFS production in S. yanglinensis 3-10.
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Affiliation(s)
- Longyan Yang
- China Tobacco Guangxi Industrial Co., Ltd., Nanning, China
| | - Qaiser Shakeel
- Cholistan Institute of Desert Studies, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Xueqin Xu
- China Tobacco Guangxi Industrial Co., Ltd., Nanning, China
| | - Liaqat Ali
- Cholistan Institute of Desert Studies, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Zhiyan Chen
- China Tobacco Guangxi Industrial Co., Ltd., Nanning, China
| | - Mustansar Mubeen
- Department of Plant Pathology, College of Agriculture, University of Sargodha, Sargodha, Pakistan
| | - Muhammad Aamir Sohail
- National Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Yasir IfItikhar
- Department of Plant Pathology, College of Agriculture, University of Sargodha, Sargodha, Pakistan
| | - Ajay Kumar
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh, India
| | - Manoj Kumar Solanki
- Department of Life Sciences and Biological Sciences, IES University, Bhopal, Madhya Pradesh, India
- Plant Cytogenetics and Molecular Biology Group, Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Katowice, Poland
| | - Yun Zhou
- China Tobacco Guangxi Industrial Co., Ltd., Nanning, China
| | - Dongling Zhao
- China Tobacco Guangxi Industrial Co., Ltd., Nanning, China
| | - Nada K. Alharbi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Jie Wang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
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Alharbi NK, Azeez ZF, Alhussain HM, Shahlol AMA, Albureikan MOI, Elsehrawy MG, Aloraini GS, El-Nablaway M, Khatrawi EM, Ghareeb A. Tapping the biosynthetic potential of marine Bacillus licheniformis LHG166, a prolific sulphated exopolysaccharide producer: structural insights, bio-prospecting its antioxidant, antifungal, antibacterial and anti-biofilm potency as a novel anti-infective lead. Front Microbiol 2024; 15:1385493. [PMID: 38659983 PMCID: PMC11039919 DOI: 10.3389/fmicb.2024.1385493] [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: 02/12/2024] [Accepted: 03/18/2024] [Indexed: 04/26/2024] Open
Abstract
The escalating global threat of antimicrobial resistance necessitates prospecting uncharted microbial biodiversity for novel therapeutic leads. This study mines the promising chemical richness of Bacillus licheniformis LHG166, a prolific exopolysaccharide (EPSR2-7.22 g/L). It comprised 5 different monosaccharides with 48.11% uronic acid, 17.40% sulfate groups, and 6.09% N-acetyl glucosamine residues. EPSR2 displayed potent antioxidant activity in DPPH and ABTS+, TAC and FRAP assays. Of all the fungi tested, the yeast Candida albicans displayed the highest susceptibility and antibiofilm inhibition. The fungi Aspergillus niger and Penicillium glabrum showed moderate EPSR2 susceptibility. In contrast, the fungi Mucor circinelloides and Trichoderma harzianum were resistant. Among G+ve tested bacteria, Enterococcus faecalis was the most susceptible, while Salmonella typhi was the most sensitive to G-ve pathogens. Encouragingly, EPSR2 predominantly demonstrated bactericidal effects against both bacterial classes based on MBC/MIC of either 1 or 2 superior Gentamicin. At 75% of MBC, EPSR2 displayed the highest anti-biofilm activity of 88.30% against B. subtilis, while for G-ve antibiofilm inhibition, At 75% of MBC, EPSR2 displayed the highest anti-biofilm activity of 96.63% against Escherichia coli, Even at the lowest dose of 25% MBC, EPSR2 reduced biofilm formation by 84.13% in E. coli, 61.46% in B. subtilis. The microbial metabolite EPSR2 from Bacillus licheniformis LHG166 shows promise as an eco-friendly natural antibiotic alternative for treating infections and oxidative stress.
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Affiliation(s)
- Nada K. Alharbi
- Department of Biology, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | | | | | - Aisha M. A. Shahlol
- Department of Medical Laboratory Technology, Faculty of Medical Technology, Wadi-Al-Shatii University, Brack, Libya
| | - Mona Othman I. Albureikan
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohamed Gamal Elsehrawy
- College of Nursing, Prince Sattam Bin Abdelaziz University, Al-Kharj, Saudi Arabia
- Faculty of Nursing, Port Said University, Port Said, Egypt
| | - Ghfren S. Aloraini
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Mohammad El-Nablaway
- Department of Medical Biochemistry, Faculty of Medicine, Mansoura University, Mansoura, Egypt
- Department of Basic Medical Sciences, College of Medicine, AlMaarefa University, Riyadh, Saudi Arabia
| | - Elham Mohammed Khatrawi
- Department of Basic Medical Sciences, College of Medicine, Taibah University, Madinah, Saudi Arabia
| | - Ahmed Ghareeb
- Botany and Microbiology Department, Faculty of Science, Suez Canal University, Ismailia, Egypt
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Abdelatti MAI, Abd El-Aziz NK, El-Naenaeey ESYM, Ammar AM, Alharbi NK, Alharthi A, Zakai SA, Abdelkhalek A. Antibacterial and Anti-Efflux Activities of Cinnamon Essential Oil against Pan and Extensive Drug-Resistant Pseudomonas aeruginosa Isolated from Human and Animal Sources. Antibiotics (Basel) 2023; 12:1514. [PMID: 37887215 PMCID: PMC10604284 DOI: 10.3390/antibiotics12101514] [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: 07/31/2023] [Revised: 09/29/2023] [Accepted: 09/29/2023] [Indexed: 10/28/2023] Open
Abstract
Pseudomonas aeruginosa is notorious for its ability to develop a high level of resistance to antimicrobial agents. Resistance-nodulation-division (RND) efflux pumps could mediate drug resistance in P. aeruginosa. The present study aimed to evaluate the antibacterial and anti-efflux activities of cinnamon essential oil either alone or combined with ciprofloxacin against drug resistant P. aeruginosa originated from human and animal sources. The results revealed that 73.91% of the examined samples were positive for P. aeruginosa; among them, 77.78% were of human source and 72.73% were recovered from animal samples. According to the antimicrobial resistance profile, 48.73% of the isolates were multidrug-resistant (MDR), 9.2% were extensive drug-resistant (XDR), and 0.84% were pan drug-resistant (PDR). The antimicrobial potential of cinnamon oil against eleven XDR and one PDR P. aeruginosa isolates was assessed by the agar well diffusion assay and broth microdilution technique. The results showed strong antibacterial activity of cinnamon oil against all tested P. aeruginosa isolates with inhibition zones' diameters ranging from 34 to 50 mm. Moreover, the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) values of cinnamon oil against P. aeruginosa isolates ranged from 0.0562-0.225 µg/mL and 0.1125-0.225 µg/mL, respectively. The cinnamon oil was further used to evaluate its anti-efflux activity against drug-resistant P. aeruginosa by phenotypic and genotypic assays. The cartwheel test revealed diminished efflux pump activity post cinnamon oil exposure by two-fold indicating its reasonable impact. Moreover, the real-time quantitative polymerase chain reaction (RT-qPCR) results demonstrated a significant (p < 0.05) decrease in the expression levels of MexA and MexB genes of P. aeruginosa isolates treated with cinnamon oil when compared to the non-treated ones (fold changes values ranged from 0.4204-0.7474 for MexA and 0.2793-0.4118 for MexB). In conclusion, we suggested the therapeutic use of cinnamon oil as a promising antibacterial and anti-efflux agent against drug-resistant P. aeruginosa.
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Affiliation(s)
- Mohamed A. I. Abdelatti
- Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt; (E.-s.Y.M.E.-N.); (A.M.A.)
| | - Norhan K. Abd El-Aziz
- Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt; (E.-s.Y.M.E.-N.); (A.M.A.)
| | - El-sayed Y. M. El-Naenaeey
- Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt; (E.-s.Y.M.E.-N.); (A.M.A.)
| | - Ahmed M. Ammar
- Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt; (E.-s.Y.M.E.-N.); (A.M.A.)
| | - Nada K. Alharbi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
| | - Afaf Alharthi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, Taif 21944, Saudi Arabia;
| | - Shadi A. Zakai
- Department of Clinical Microbiology and Immunology, Faculty of Medicine, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Adel Abdelkhalek
- Food Safety, Hygiene and Technology Department, Faculty of Veterinary Medicine, Badr University in Cairo (BUC), Badr City 11829, Egypt;
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Fouda A, Abdel-Nasser M, Eid AM, Hassan SED, Abdel-Nasser A, Alharbi NK, AlRokban AH, Abdel-Maksoud G. An Eco-Friendly Approach Utilizing Green Synthesized Titanium Dioxide Nanoparticles for Leather Conservation against a Fungal Strain, Penicillium expansum AL1, Involved in the Biodeterioration of a Historical Manuscript. Biology (Basel) 2023; 12:1025. [PMID: 37508454 PMCID: PMC10376199 DOI: 10.3390/biology12071025] [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: 06/20/2023] [Revised: 07/14/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023]
Abstract
The main hypothesis of the present research is investigating the efficacy of titanium oxide nanoparticles (TiO2-NPs) to prevent the growth of fungal strains when applied on leather under an experimental study. Therefore, fifteen fungal strains were isolated from a deteriorated historical manuscript (papers and leathers) and identified by traditional methods and ITS sequence analysis, including Aspergillus chevalieri (one isolate), A. nidulans (two strains), A. flavus (four strains), A. cristatus (one strain), A. niger (one strain), Paecilomyces fulvus (two strains), Penicillium expansum (two strains), and P. citrinum (two strains). The enzymes cellulase, amylase, pectinase, and gelatinase, which play a crucial role in biodegradation, were highly active in these fungal strains. TiO2-NPs were formed using the cell-free filtrate of the probiotic bacterial strain, Lactobacillus plantarum, and characterized. Data showed that the TiO2-NPs were successfully formed with a spherical shape and anatase phase with sizes of 2-8 nm. Moreover, the EDX analysis revealed that the Ti and O ions occupied the main component with weight percentages of 41.66 and 31.76%, respectively. The in vitro cytotoxicity of TiO2-NPs toward two normal cell lines, WI38 and HFB4, showed a low toxicity effect against normal cells (IC50 = 114.1 ± 8.1µg mL-1 for Wi38, and 237.5 ± 3.5µg mL-1 for HFB4). Therefore, concentrations of 100 μg mL-1 were used to load on prepared leather samples before inoculation with fungal strain P. expansum AL1. The experimental study revealed that the loaded TiO2-NPs have the efficacy to inhibit fungal growth with percentages of 73.2 ± 2.5%, 84.2 ± 1.8%, and 88.8 ± 0.6% after 7, 14, and 21 days, respectively. Also, the analyses including SEM, FTIR-ART, color change, and mechanical properties for leather inoculated with fungal strain AL1 in the absence of NPs showed high damage aspects compared to those inoculated with fungal strains in the presence of TiO2-NPs.
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Affiliation(s)
- Amr Fouda
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt
| | - Mahmoud Abdel-Nasser
- Department of Manuscripts Conservation, Al-Azhar Al-Sharif Library, Cairo 11511, Egypt
| | - Ahmed M Eid
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt
| | - Saad El-Din Hassan
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt
| | - Aya Abdel-Nasser
- Food Toxicology and Contaminants Department, National Research Centre, Cairo 12622, Egypt
| | - Nada K Alharbi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Ahlam H AlRokban
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Gomaa Abdel-Maksoud
- Conservation Department, Faculty of Archaeology, Cairo University, Giza 12613, Egypt
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Shami A, Alharbi NK, Al-Saeed FA, Alsaegh AA, Al Syaad KM, Abd El-Rahim IHA, Mostafa YS, Ahmed AE. In Silico Subtractive Proteomics and Molecular Docking Approaches for the Identification of Novel Inhibitors against Streptococcus pneumoniae Strain D39. Life (Basel) 2023; 13:life13051128. [PMID: 37240772 DOI: 10.3390/life13051128] [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: 01/30/2023] [Revised: 04/10/2023] [Accepted: 04/25/2023] [Indexed: 05/28/2023] Open
Abstract
Streptococcus pneumoniae is a notorious Gram-positive pathogen present asymptomatically in the nasophayrnx of humans. According to the World Health Organization (W.H.O), pneumococcus causes approximately one million deaths yearly. Antibiotic resistance in S. pneumoniae is raising considerable concern around the world. There is an immediate need to address the major issues that have arisen as a result of persistent infections caused by S. pneumoniae. In the present study, subtractive proteomics was used in which the entire proteome of the pathogen consisting of 1947 proteins is effectively decreased to a finite number of possible targets. Various kinds of bioinformatics tools and software were applied for the discovery of novel inhibitors. The CD-HIT analysis revealed 1887 non-redundant sequences from the entire proteome. These non-redundant proteins were submitted to the BLASTp against the human proteome and 1423 proteins were screened as non-homologous. Further, databases of essential genes (DEGG) and J browser identified almost 171 essential proteins. Moreover, non-homologous, essential proteins were subjected in KEGG Pathway Database which shortlisted six unique proteins. In addition, the subcellular localization of these unique proteins was checked and cytoplasmic proteins were chosen for the druggability analysis, which resulted in three proteins, namely DNA binding response regulator (SPD_1085), UDP-N-acetylmuramate-L-alanine Ligase (SPD_1349) and RNA polymerase sigma factor (SPD_0958), which can act as a promising potent drug candidate to limit the toxicity caused by S. pneumoniae. The 3D structures of these proteins were predicted by Swiss Model, utilizing the homology modeling approach. Later, molecular docking by PyRx software 0.8 version was used to screen a library of phytochemicals retrieved from PubChem and ZINC databases and already approved drugs from DrugBank database against novel druggable targets to check their binding affinity with receptor proteins. The top two molecules from each receptor protein were selected based on the binding affinity, RMSD value, and the highest conformation. Finally, the absorption, distribution, metabolism, excretion, and toxicity (ADMET) analyses were carried out by utilizing the SWISS ADME and Protox tools. This research supported the discovery of cost-effective drugs against S. pneumoniae. However, more in vivo/in vitro research should be conducted on these targets to investigate their pharmacological efficacy and their function as efficient inhibitors.
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Affiliation(s)
- Ashwag Shami
- Department of Biology, College of Sciences, Princess Nourah Bint Abdulrahman University, Riyadh 11617, Saudi Arabia
| | - Nada K Alharbi
- Department of Biology, College of Sciences, Princess Nourah Bint Abdulrahman University, Riyadh 11617, Saudi Arabia
| | - Fatimah A Al-Saeed
- Research Centre, Department of Biology, College of Science, King Khalid University, Abha 61413, Saudi Arabia
- Advanced Material Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia
| | - Aiman A Alsaegh
- Department of Laboratory Medicine, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah Al-Mukarramah 24382, Saudi Arabia
| | - Khalid M Al Syaad
- Biology Department, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
- The Research Center, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Ibrahim H A Abd El-Rahim
- Department of Environmental and Health Research, Umm Al-Qura University, P.O. Box 6287, Makkah Al-Mukarramah 21955, Saudi Arabia
| | - Yasser Sabry Mostafa
- Biology Department, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Ahmed Ezzat Ahmed
- Biology Department, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
- Department of Theriogenology, Faculty of Veterinary Medicine, South Valley University, Qena 83523, Egypt
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Abbas AM, Alomran MM, Alharbi NK, Novak SJ. Suppression of Seedling Survival and Recruitment of the Invasive Tree Prosopis juliflora in Saudi Arabia through Its Own Leaf Litter: Greenhouse and Field Assessments. Plants (Basel) 2023; 12:959. [PMID: 36840305 PMCID: PMC9965580 DOI: 10.3390/plants12040959] [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] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/15/2023] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
Many studies have focused on how leaf litter depth affects seed germination and seedling growth because the seedling stage is the most vulnerable portion of a plant's life cycle. Invasive plants with the most severe ecological consequences are those that modify ecosystems, and this can occur through the formation of thick litter layers which can suppress the emergence, survival, and recruitment of native plant seedlings; in addition, in some cases, these litter layers can suppress invasive plant seedling recruitment. Prosopis juliflora is a thorny shrub that is native to arid and semi-arid portions of North America, parts of South America, and the Caribbean. It has invaded millions of hectares around the world, including Saudi Arabia. The objective of this study is to evaluate whether P. juliflora leaf litter reduces the recruitment of its own seedlings under greenhouse and field conditions in Saudi Arabia. In both the greenhouse and the field, the number of days to first emergence increased and germination percentage decreased with increasing litter depth. With the 1, 2, and 4 cm litter depth treatments, the number of viable seeds generally decreased, with no emergence, germination, or viable seeds detected for the 8 cm litter depth treatment. Results of this study reveal that increasing the depth of P. juliflora leaf litter suppresses the survival and recruitment of its own seedlings. Future search should assess the actual mechanisms through which P. juliflora seeds are suppressed, the role of allelopathic compounds in this process, and whether viable seeds are dormant and will persist in the soil seed bank.
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Affiliation(s)
- Ahmed M. Abbas
- Department of Biology, College of Science, King Khalid University, Abha 61413, Saudi Arabia
- Department of Botany and Microbiology, Faculty of Science, South Valley University, Qena 83523, Egypt
| | - Maryam M. Alomran
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Nada K. Alharbi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Stephen J. Novak
- Department of Biological Sciences, Boise State University, Boise, ID 83725, USA
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Naqvi SAR, Jabbar T, Alharbi MA, Noureen A, Alharbi NK, Sherazi TA, Shahzadi A, Ahmed AE, Afzal MS, Imran MB. Radiosynthesis, quality control, biodistribution, and infection-imaging study of a new 99mTc-labeled ertapenem radiopharmaceutical. Front Chem 2022; 10:1020387. [PMID: 36426099 PMCID: PMC9680013 DOI: 10.3389/fchem.2022.1020387] [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: 08/16/2022] [Accepted: 10/06/2022] [Indexed: 11/09/2022] Open
Abstract
Ertapenem is a member of carbapenem antibiotics used for the treatment of moderate-to-severe intra-abdominal, urinary tract, acute pelvic, and post-surgical gynecologic infections. The antibacterial activity of ertapenem is mediated through binding to penicillin-binding proteins which results in inhibiting the cross-linking of the peptidoglycan layer of the bacterial cell wall. Therefore, ertapenem can be labeled with technetium-99m (99mTc), a gamma emitter radionuclide, for the diagnosis of deep-seated bacterial infections, such as urinary tract, intra-abdominal, osteomyelitis, and post-surgical gynecologic infections. The labeling procedure was carried out by varying the reaction conditions, such as the amount of the ligand and reducing agent, pH, reaction time and temperature, and radioactivity. At optimized reaction conditions more than 93% 99mTc–ertapenem radioconjugate was obtained. 99mTc–ertapenem was found 90% intact in saline medium up to 6 h, while 88% intact in human blood serum up to 3 h. Biodistribution study showed target-to-non-target ratios of 2.91 ± 0.19, 2.39 ± 0.31, and 1.23 ± 0.22 in S. aureus, E. coli, and turpentine oil-infected rat models, respectively. The SPECT scintigraphy showed high uptake of 99mTc–ertapenem in bacterial-infected abscesses, and low counts were recorded in normal and turpentine oil-inflamed tissues. In conclusion, 99mTc–ertapenem can be a potent infection-imaging agent, which can diagnosis deep-seated bacterial infections at early stage but need further pre-clinical evaluation in variety of infection models.
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Affiliation(s)
- Syed Ali Raza Naqvi
- Department of Chemistry, Government College University, Faisalabad, Pakistan
- *Correspondence: Syed Ali Raza Naqvi,
| | - Tania Jabbar
- Punjab Institute of Nuclear Medicine, Faisalabad, Pakistan
| | - Maha A. Alharbi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Asma Noureen
- Department of Zoology, Ghazi University, Dera Ghazi Khan, Pakistan
| | - Nada K. Alharbi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Tauqir A. Sherazi
- Department of Chemistry, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Anum Shahzadi
- Department of Chemistry, Government College University, Faisalabad, Pakistan
| | - Ahmed Ezzat Ahmed
- Department of Biology, College of Science, King Khalid University, Abha, Saudi Arabia
- Department of Theriogenology, Faculty of Veterinary Medicine, South Valley University, Qena, Egypt
| | | | - M. Babar Imran
- Punjab Institute of Nuclear Medicine, Faisalabad, Pakistan
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El-Tarabili RM, Ahmed EM, Alharbi NK, Alharbi MA, AlRokban AH, Naguib D, Alhag SK, El Feky TM, Ahmed AE, Mahmoud AE. Prevalence, antibiotic profile, virulence determinants, ESBLs, and non-β-lactam encoding genes of MDR Proteus spp. isolated from infected dogs. Front Genet 2022; 13:952689. [PMID: 36276974 PMCID: PMC9583872 DOI: 10.3389/fgene.2022.952689] [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: 05/25/2022] [Accepted: 09/02/2022] [Indexed: 11/13/2022] Open
Abstract
This study investigated the prevalence, antibiogram, virulence, extended-spectrum β-lactamases (ESBLs), and non-β-lactam encoding genes of Proteus species isolated from infected dogs in Ismailia province, Egypt. The study was conducted on 70 fecal swabs collected from dogs with diarrhea for bacteriological identification of Proteus spp. The positive isolates were evaluated for antibiotic susceptibility, molecular tests of virulence, ESBLs, and non-β-lactam encoding genes. Prevalence of Proteus spp. was 35.7% (25/70), including Proteus mirabilis (n = 23) and Proteus vulgaris (n = 2). The Proteus spp. prevalence revealed diversity, higher in males than females, in ages < 12 weeks. Investigation of antimicrobial resistance was found against penicillin and amoxicillin (100%), amoxicillin–clavulanic acid (32%), cephalosporins: cefotaxime and ceftazidime (36%), and monobactam: aztreonam (28%) as ESBLs, in addition to tetracycline (32%) and trimethoprim sulfamethoxazole (100%). The strains retrieved by PCR revealed ureC, zapA, and rsbA virulence genes with variant prevalence as 92%, 60%, and 52%, respectively. In addition, the recovered strains contained ESBL genes with a dramatic variable prevalence of 100%, 92%, 36%, and 32%, to blaTEM, blaSHV, blaCTX-M, and blaOXA-1, respectively, and non β-lactam encoding genes with a prevalence of 100%, 48%, 44%, 20%, and 12%, to sul1, tetA, intI1, qnrA, and aadA1. Moreover, 28% (7/25) of recovering strains were MDR (multidrug-resistant) up to four classes of antimicrobials, and 48% (12/25) of the examined strains were MDR up to three antimicrobial classes. In conclusion, to the best of our knowledge, our study could be the first report recording MDR Proteus spp. in dogs in Egypt.
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Affiliation(s)
- Reham M El-Tarabili
- Department of Bacteriology, Immunology, and Mycology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt
| | - Elsayyad M Ahmed
- Department of Virology, Animal Health Research Institute (AHRI), Agriculture Research Center (ARC), Giza, Egypt
| | - Nada K Alharbi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Maha A Alharbi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Ahlam H AlRokban
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Doaa Naguib
- Department of Hygiene and Zoonoses, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt
| | - Sadeq K Alhag
- Department of Biology, College of Science, King Khalid University, Abha, Saudi Arabia
| | - Tamer Mohamed El Feky
- Animal Health Research Institute(AHRI), Mansoura laboratory Branch, Agriculture Research Center (ARC), Giza, Egypt
| | - Ahmed Ezzat Ahmed
- Department of Biology, College of Science, King Khalid University, Abha, Saudi Arabia
- Department of Theriogenology, Faculty of Veterinary Medicine, South Valley University, Qena, Egypt
| | - Ahmed E Mahmoud
- Department of Animal Medicine, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt
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Fayez MM, Swelum AA, Alharbi NK, AlRokban AH, Almubarak A, Almubarak AH, Alaql F, Ahmed AE. Multilocus Sequence Typing and Antifungal Susceptibility of Candida albicans Isolates From Milk and Genital Tract of Dromedary Camel. Front Vet Sci 2022; 9:905962. [PMID: 35873700 PMCID: PMC9305711 DOI: 10.3389/fvets.2022.905962] [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: 04/19/2022] [Accepted: 06/02/2022] [Indexed: 11/21/2022] Open
Abstract
Multilocus sequence typing (MLST) was used to study the genetic diversity and population structure of 48 Candida albicans (C. albicans) isolates from the udder or genital tract of apparently healthy or diseased camels. This study aimed also to determine the frequency of C. albicans isolates in the genital tract and udder of healthy or diseased female dromedary camels. A total of 240 mature dromedary camels (230 females and 10 males) were categorized based on the clinical examination of gentile tract and udder into five groups [fertile females (n = 70), infertile females (n = 115), healthy udder (n = 15), mastitis (n = 30), and fertile males (n = 10)]. Swabs were collected from male and female genital tracts of dromedary camels and milk samples were collected from healthy and diseased udders. C. albicans was isolated from 20% of the samples. The frequency of isolation was significantly higher (p < 0.00001) in disease camels (75%) compared with apparently healthy camels (25%). Most of C. albicans was isolated from infertile female genitalia (62.50%) which was significantly higher than that isolated from fertile female genitalia (16.67%). Multilocus sequence (MLS) analysis identified seven different diploid sequence types (DSTs) including DST2, DST50, DST62, DST69, DST124, DST142, and DST144. The most frequently identified DTS was DST69 (13/48) which significantly higher (p ≤ 0.05) than DST2, DST62, and DST124. The frequency of identification of DST50, DST142, and DST 144 was significantly higher (p ≤ 0.05) than DST62. DST62 and DST124 were isolated only from diseased camels. DST62 was isolated only from mastitic milk. DST124 was isolated only from infertile female genitalia. The percentage of DST50 and DST 142 was significantly higher in diseased camels (infertile females) than in the apparently healthy ones (fertile females). DST2 and DST50 were isolated only from female genitalia of apparent health and diseased camels. The C. albicans isolated from diseased camels had significantly higher biofilm formation, hydrophobicity, phospholipase, proteinase, and hemolysin activities compared with the isolates from apparent healthy camels. All isolates were sensitive to amphotericin B, itraconazole, micafungin, posaconazole and voriconazole. In conclusion, the present study represents the first molecular typing of C. albicans in samples isolated from milk and the genital tract of the dromedary camel. MLST is a useful tool for studying the epidemiology and evolution of C. albicans. Early identification of Candida species and attention to Candida virulence factors and their antifungal susceptibility patterns is very important for establishing strategies to control and/or prevent candidiasis by novel therapeutic management. Amphotericin B, itraconazole, micafungin, posaconazole, or voriconazole can be efficient in treatment of candidiasis.
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Affiliation(s)
- Mahmoud M. Fayez
- Department of Bacteriology, Veterinary Serum and Vaccine Research Institute, Ministry of Agriculture, Cairo, Egypt
- Al Ahsa Laboratory, Ministry of Agriculture Kingdom of Saudi Arabia, Al Ahsa, Saudi Arabia
| | - Ayman A. Swelum
- Department of Theriogenology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
- *Correspondence: Ayman A. Swelum
| | - Nada K. Alharbi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Ahlam H. AlRokban
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Abdullah Almubarak
- Al Ahsa Laboratory, Ministry of Agriculture Kingdom of Saudi Arabia, Al Ahsa, Saudi Arabia
| | - Ameen H. Almubarak
- Al Ahsa Laboratory, Ministry of Agriculture Kingdom of Saudi Arabia, Al Ahsa, Saudi Arabia
| | - Fanan Alaql
- Riyadh Veterinary Diagnostic Lab, Ministry of Environment, Water and Agriculture, Riyadh, Saudi Arabia
| | - Ahmed E. Ahmed
- Biology Department, College of Science, King Khalid University, Abha, Saudi Arabia
- Department of Theriogenology, Faculty of Veterinary Medicine, South Valley University, Qena, Egypt
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Alharbi NK, Al-Zaban MI, Albarakaty FM, Abdelwahab SF, Hassan SHA, Fawzy MA. Kinetic, Isotherm and Thermodynamic Aspects of Zn 2+ Biosorption by Spirulina platensis: Optimization of Process Variables by Response Surface Methodology. Life (Basel) 2022; 12:life12040585. [PMID: 35455076 PMCID: PMC9027641 DOI: 10.3390/life12040585] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 03/17/2022] [Revised: 04/10/2022] [Accepted: 04/11/2022] [Indexed: 02/05/2023] Open
Abstract
The aim of this study was to assess the efficiency of Spirulina platensis for removing Zn2+ ions from the aqueous solutions. The optimized conditions of 4.48 g/L algal dose, pH of 6.62 and initial zinc concentration of 29.72 mg/L obtained by response surface methodology were employed for Zn2+ biosorption by S. platensis and up to 97.90% Zn2+ was removed, showing that there is a favorable harmony between the experimental data and model predictions. Different kinetic and equilibrium models were used to characterize the biosorption manner of Spirulina as a biosorbent. The kinetic manner of Zn2+ biosorption was well characterized by the pseudo-second-order, implying that the adsorption process is chemical in nature. The Langmuir and Dubinin-Radushkevich isotherm models were best fit to the equilibrium data. The maximum adsorption capacity of the Langmuir monolayer was 50.7 mg/g. Furthermore, the thermodynamic analysis revealed that Zn2+ biosorption was endothermic, spontaneous and feasible. As a result of biosorption process, FTIR, SEM, and EDX investigations indicated noticeable alterations in the algal biomass's properties. Therefore, the dried Spirulina biomass has been shown to be cost-effective and efficient for removing the heavy metals, particularly zinc ions from wastewater, and the method is practicable, and environmentally acceptable.
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Affiliation(s)
- Nada K. Alharbi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia; (N.K.A.); (M.I.A.-Z.)
| | - Mayasar I. Al-Zaban
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia; (N.K.A.); (M.I.A.-Z.)
| | - Fawziah M. Albarakaty
- Department of Biology, Faculty of Applied Science, Umm Al-Qura University, P.O. Box 715, Makkah Al Mukarramah 21955, Saudi Arabia;
| | - Sayed F. Abdelwahab
- Department of Pharmaceutics and Industrial Pharmacy, College of Pharmacy, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
| | - Sedky H. A. Hassan
- Department of Biology, College of Science, Sultan Qaboos University, Muscat 123, Oman;
- Department of Botany and Microbiology, Faculty of Science, New Valley University, El-Kharga 72511, Egypt
| | - Mustafa A. Fawzy
- Biology Department, Faculty of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
- Correspondence: ; Tel.: +966-669594732248
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El-Wafai NA, Alharbi NK, Ezzat Ahmed A, El-Zamik FI, Mahgoub SA, Atia AM, Abdel-Hamid EA. Controlling of multidrug resistant Aeromonas hydrophila infected Nile tilapia (Oreochromis niloticus) using Ah03 and Ah04 virulent bacteriophages isolates. Saudi J Biol Sci 2022. [DOI: 10.1016/j.sjbs.2022.02.050] [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: 10/18/2022] Open
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