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Microalgae-based wastewater treatment:Mechanisms,challenges,recent advances,and future prospects

Environmental Science and Ecotechnology 2023年第1期13卷 5-22页

作者： abdallah abdelfattah Sameh Samir Ali Hassan Ramadan Eslam Ibrahim El-Aswar Reham Eltawab Shih-Hsin Ho Tamer Elsamahy Shengnan Li Mostafa M.El-Sheekh Michael Schagerl Michael Kornaros Jianzhong Sun School of Environment and Safety Engineering Jiangsu UniversityZhenjiang212013PR China Department of Public Works Engineering Faculty of EngineeringTanta UniversityTanta31511Egypt Biofuels Institute School of the Environment and Safety EngineeringJiangsu UniversityZhenjiang212013PR China Botany Department Faculty of ScienceTanta UniversityTanta31527Egypt Central Laboratories for Environmental Quality Monitoring(CLEQM) National Water Research Center(NWRC)El-Kanater13621QalyubiyahEgypt State Key Laboratory of Urban Water Resource and Environment School of EnvironmentHarbin Institute of TechnologyHarbin150090PR China Department of Functional and Evolutionary Ecology University of ViennaDjerassiplatz 1A-1030 ViennaAustria Laboratory of Biochemical Engineering&Environmental Technology(LBEET) Department of Chemical EngineeringUniversity of Patras1 Karatheodori Str.University Campus26504PatrasGreece

The rapid expansion of both the global economy and the human population has led to a shortage of water resources suitable for direct human *** a result,water remediation will inexorably become the primary focus on a global *** can be grown in various types of wastewaters(WW).They have a high potential to remove contaminants from the effluents of industries and urban *** review focuses on recent advances on WW remediation through microalgae *** has already been paid to microalgae-based wastewater treatment(WWT)due to its low energy requirements,the strong ability of microalgae to thrive under diverse environmental conditions,and the potential to transform WW nutrients into high-value *** turned out that microalgae-based WWT is an economical and sustainable ***,different types of toxins are removed by microalgae through biosorption,bioaccumulation,and biodegradation *** are toxins from agricultural runoffs and textile and pharmaceutical industrial *** have the potential to mitigate carbon dioxide and make use of the micronutrients that are present in the *** review paper highlights the application of microalgae in WW remediation and the remediation of diverse types of pollutants commonly present in WW through different mechanisms,simultaneous resource recovery,and efficient microalgae-based co-culturing systems along with bottlenecks and prospects.

关键词： Bioremediation Wastewater treatment Environmental applications Microalgae Co-culturing

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Susceptibility patterns and virulence genotypes of Helicobacter pylori affecting eradication therapy outcomes among Egyptian patients with gastroduodenal diseases

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World Journal of Gastroenterology 2023年第19期29卷 2950-2960页

作者： Ahmed Morad Asaad Gasser El-Azab Eman Abdelsameea Osama Elbahr Ahmed Kamal Mohamed Abdel-Samiee Ahmed abdelfattah Heba abdallah Doha Maher Ahmed El-Refaie Samar Ebrahim Ghanem Shamshul Ansari Samah Mohammed Awad Department of Microbiology College of MedicineZagazig UniversityZagazig 44519Egypt Department of Hepatology and Gastroenterology National Liver InstituteMenoufia UniversityShebin El-Kom 32511Egypt Department of Clinical Pathology National Liver InstituteMenoufia UniversityShebin El-Kom 32511Egypt Department of Pathology National Liver InstituteMenoufia UniversityShebin El-Kom 32511Egypt Department of Clinical Biochemistry and Molecular Diagnostics National Liver InstituteMenoufia UniversityShebin El-Kom 32511Egypt Department of Health Sciences Higher Colleges of TechnologyAbu Dhabi Women's CollegeAbu Dhabi 25026United Arab Emirates Department of Clinical Microbiology and Immunology National Liver InstituteMenoufia UniversityShebin El-Kom 32511Egypt

BACKGROUND Helicobacter pylori(***)is a significant human pathogen that is responsible for a variety of illnesses,including mucosa-associated lymphoid tissue lymphoma,gastric cancer,peptic ulcers,and *** To investigate the frequency of *** infection and its resistance patterns among Egyptian patients and to determine the influence of *** virulence genetic determinants on the eradication success of 14-d triple therapy *** *** infections were investigated in 72 patients with gastroduodenal complications suggestive of *** *** cagA and vacA genotypes of cultured strains were studied using polymerase chain *** patients underwent 14 d of triple-therapy *** treatment response was examined using histology and a rapid urease test 6 wk after therapy *** The intention-to-treat eradication rate was 59.2%(95%CI:48.2%-70.3%).Rates of *** resistance to clarithromycin,amoxicillin,and metronidazole were 52.8%,81.9%,and 100%,*** eradication of *** was more significantly associated with vacA s1-positive strains[adjusted odds ratio(aOR)=0.507,95%CI:0.175-0.822].A significant association was found between failed eradication rate and *** strains resistant to clarithromycin(aOR=0.204,95%CI:-0.005 to 0.412)and amoxicillin(aOR=0.223,95%CI:0.026-0.537).CONCLUSION This study’s low *** eradication rate following 14-d triple therapy is concerning and *** pan-resistance to metronidazole followed by the high resistance to ciprofloxacin,amoxicillin,and clarithromycin in this research is challenging and of great concern.

关键词： Helicobacter pylori Eradication therapy Virulence Clarithromycin resistance cagA gene vacA gene

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