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Singh S, Varshney N, Singothu S, Bhandari V, Jha HC. Influence of chlorpyrifos and endosulfan and their metabolites on the virulence of Helicobacter pylori. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 347:123676. [PMID: 38442821 DOI: 10.1016/j.envpol.2024.123676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 02/10/2024] [Accepted: 02/27/2024] [Indexed: 03/07/2024]
Abstract
Organochlorine (OC) and organophosphorus (OP) pesticides such as chlorpyrifos (CPF) and endosulfan (ES) have been associated with a plethora of adverse health effects. Helicobacter pylori (H. pylori) infection can lead to gastrointestinal diseases by regulating several cellular processes. Thus, the current study focuses on the effect of the co-exposure to pesticides and H. pylori on gastric epithelial cells. We have used the in-silico approach to determine the interactive potential of pesticides and their metabolites with H. pylori-associated proteins. Further, various in-vitro methods depict the potential of ES in enhancing the virulence of H. pylori. Our results showed that ES along with H. pylori affects the mitochondrial dynamics, increases the transcript expression of mitochondrial fission genes, and lowers the mitochondrial membrane potential and biomass. They also promote inflammation and lower oxidative stress as predicted by ROS levels. Furthermore, co-exposure induces the multi-nucleated cells in gastric epithelial cells. In addition, ES along with H. pylori infection follows the extrinsic pathway for apoptotic signaling. H. pylori leads to the NF-κB activation which in turn advances the β-catenin expression. The expression was further enhanced in the co-exposure condition and even more prominent in co-exposure with ES-conditioned media. Thus, our study demonstrated that pesticide and their metabolites enhance the pathogenicity of H. pylori infection.
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Affiliation(s)
- Siddharth Singh
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, India
| | - Nidhi Varshney
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, India
| | - Siva Singothu
- Department of Pharmacoinformatics, National Institute of Pharmaceutical Education and Research, Hyderabad, India
| | - Vasundhra Bhandari
- Department of Pharmacoinformatics, National Institute of Pharmaceutical Education and Research, Hyderabad, India.
| | - Hem Chandra Jha
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, India.
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2
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Lerma-Moliz R, López-González JA, Suárez-Estrella F, Martínez-Gallardo MR, Jurado MM, Estrella-González MJ, Toribio AJ, Jiménez R, López MJ. Mitigation of phytotoxic effect of compost by application of optimized aqueous extraction protocols. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 873:162288. [PMID: 36801343 DOI: 10.1016/j.scitotenv.2023.162288] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/31/2023] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
The abuse of chemical fertilizers in recent decades has led the promotion of less harmful alternatives, such as compost or aqueous extracts obtained from it. Therefore, it is essential to develop liquid biofertilizers, which in addition of being stable and useful for fertigation and foliar application in intensive agriculture had a remarkable phytostimulant extracts. For this purpose, a collection of aqueous extracts was obtained by applying four different Compost Extraction Protocols (CEP1, CEP2, CEP3, CEP4) in terms of incubation time, temperature and agitation of compost samples from agri-food waste, olive mill waste, sewage sludge and vegetable waste. Subsequently, a physicochemical characterization of the obtained set was performed in which pH, electrical conductivity and Total Organic Carbon (TOC) were measured. In addition, a biological characterization was also carried out by calculating the Germination Index (GI) and determining the Biological Oxygen Demand (BOD5). Furthermore, functional diversity was studied using the Biolog EcoPlates technique. The results obtained confirmed the great heterogeneity of the selected raw materials. However, it was observed that the less aggressive treatments in terms of temperature and incubation time, such as CEP1 (48 h, room temperature (RT)) or CEP4 (14 days, RT), provided aqueous compost extracts with better phytostimulant characteristics than the starting composts. It was even possible to find a compost extraction protocol that maximize the beneficial effects of compost. This was the case of CEP1, which improved the GI and reduced the phytotoxicity in most of the raw materials analyzed. Therefore, the use of this type of liquid organic amendment could mitigate the phytotoxic effect of several composts being a good alternative to the use of chemical fertilizers.
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Affiliation(s)
- R Lerma-Moliz
- Unit of Microbiology, Department of Biology and Geology, CITE II-B, Agrifood Campus of International Excellence ceiA3, CIAIMBITAL, University of Almería, 04120 Almería, Spain
| | - J A López-González
- Unit of Microbiology, Department of Biology and Geology, CITE II-B, Agrifood Campus of International Excellence ceiA3, CIAIMBITAL, University of Almería, 04120 Almería, Spain.
| | - F Suárez-Estrella
- Unit of Microbiology, Department of Biology and Geology, CITE II-B, Agrifood Campus of International Excellence ceiA3, CIAIMBITAL, University of Almería, 04120 Almería, Spain
| | - M R Martínez-Gallardo
- Unit of Microbiology, Department of Biology and Geology, CITE II-B, Agrifood Campus of International Excellence ceiA3, CIAIMBITAL, University of Almería, 04120 Almería, Spain
| | - M M Jurado
- Unit of Microbiology, Department of Biology and Geology, CITE II-B, Agrifood Campus of International Excellence ceiA3, CIAIMBITAL, University of Almería, 04120 Almería, Spain
| | - M J Estrella-González
- Unit of Microbiology, Department of Biology and Geology, CITE II-B, Agrifood Campus of International Excellence ceiA3, CIAIMBITAL, University of Almería, 04120 Almería, Spain
| | - A J Toribio
- Unit of Microbiology, Department of Biology and Geology, CITE II-B, Agrifood Campus of International Excellence ceiA3, CIAIMBITAL, University of Almería, 04120 Almería, Spain
| | - R Jiménez
- Unit of Microbiology, Department of Biology and Geology, CITE II-B, Agrifood Campus of International Excellence ceiA3, CIAIMBITAL, University of Almería, 04120 Almería, Spain
| | - M J López
- Unit of Microbiology, Department of Biology and Geology, CITE II-B, Agrifood Campus of International Excellence ceiA3, CIAIMBITAL, University of Almería, 04120 Almería, Spain
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3
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Verma S, Thakur D, Pandey CM, Kumar D. Recent Prospects of Carbonaceous Nanomaterials-Based Laccase Biosensor for Electrochemical Detection of Phenolic Compounds. BIOSENSORS 2023; 13:305. [PMID: 36979517 PMCID: PMC10046707 DOI: 10.3390/bios13030305] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 02/10/2023] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
Phenolic compounds (PhCs) are ubiquitously distributed phytochemicals found in many plants, body fluids, food items, medicines, pesticides, dyes, etc. Many PhCs are priority pollutants that are highly toxic, teratogenic, and carcinogenic. Some of these are present in body fluids and affect metabolism, while others possess numerous bioactive properties such as retaining antioxidant and antimicrobial activity in plants and food products. Therefore, there is an urgency for developing an effective, rapid, sensitive, and reliable tool for the analysis of these PhCs to address their environmental and health concern. In this context, carbonaceous nanomaterials have emerged as a promising material for the fabrication of electrochemical biosensors as they provide remarkable characteristics such as lightweight, high surface: volume, excellent conductivity, extraordinary tensile strength, and biocompatibility. This review outlines the current status of the applications of carbonaceous nanomaterials (CNTs, graphene, etc.) based enzymatic electrochemical biosensors for the detection of PhCs. Efforts have also been made to discuss the mechanism of action of the laccase enzyme for the detection of PhCs. The limitations, advanced emerging carbon-based material, current state of artificial intelligence in PhCs detection, and future scopes have also been summarized.
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Affiliation(s)
- Sakshi Verma
- Department of Applied Chemistry, Delhi Technological University, Delhi 110042, India
| | - Deeksha Thakur
- Department of Applied Chemistry, Delhi Technological University, Delhi 110042, India
| | - Chandra Mouli Pandey
- Department of Chemistry, Faculty of Science, SGT University, Gurugram 122505, India
| | - Devendra Kumar
- Department of Applied Chemistry, Delhi Technological University, Delhi 110042, India
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4
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Bilaro JS, Materu SF, Temba BA. Dietary risk assessment of selected organophosphorus and pyrethoid pesticide residues in fresh harvested tomatoes at Makambako Town, Njombe region, Tanzania. FOOD ADDITIVES & CONTAMINANTS. PART B, SURVEILLANCE 2022; 15:235-243. [PMID: 35382700 DOI: 10.1080/19393210.2022.2056769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 03/19/2022] [Indexed: 06/14/2023]
Abstract
This study aimed to assess the levels of selected pesticides residues in harvested tomatoes and their associated dietary risks to consumers at Makambako Town in Njombe region, Tanzania. Forty-two fresh tomatoes were sampled among tomato farmers during harvesting season and extraction of analytes was done using QuEChERS method and analysed by Gas Chromatography-Mass Spectrometer. Residues of chlorpyrifos, profenofos, gamma cyhalothrin and cypermethrin were alternatingly detected in 78.51% of samples. The average concentrations of residues were 0.014, 0.056, 0.003 and 0.2 mg/kg for chlorpyrifos, profenofos, gamma cyhalothrin and cypermethrin and were all below their respective Codex MRLs. The highest concentration was 0.718 mg/kg for cypermethrin, above the Codex MRL of 0.2 mg/kg. The hazard indexes indicate no potential health hazards to the general population due to the lifetime consumption of fresh tomatoes from the study area. Periodic monitoring of residue levels of pesticides in vegetable fruits, including tomatoes, is recommended.
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Affiliation(s)
- Jansen S Bilaro
- Department of Physiology, Biochemistry and Pharmacology, College of Veterinary Medicine and Biomedical Sciences, Sokoine University of Agriculture, Morogoro, Tanzania
- Department of Physiology, Biochemistry and Pharmacology, College of Veterinary Medicine and Biomedical Sciences, Government Chemist Laboratory Authority, Dar es salaam, Tanzania
| | - Silvia F Materu
- Department of Biosciences, College of Natural And Applied Sciences, Sokoine University of Agriculture, Morogoro, Tanzania
| | - Benigni A Temba
- Department of Veterinary Physiology, Biochemistry and Pharmacology, College of Veterinary Medicine and Biomedical Sciences, Sokoine University of Agriculture, Morogoro, Tanzania
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5
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Röösli M, Fuhrimann S, Atuhaire A, Rother HA, Dabrowski J, Eskenazi B, Jørs E, Jepson PC, London L, Naidoo S, Rohlman DS, Saunyama I, van Wendel de Joode B, Adeleye AO, Alagbo OO, Aliaj D, Azanaw J, Beerappa R, Brugger C, Chaiklieng S, Chetty-Mhlanga S, Chitra GA, Dhananjayan V, Ejomah A, Enyoh CE, Galani YJH, Hogarh JN, Ihedioha JN, Ingabire JP, Isgren E, Loko YLE, Maree L, Metou’ou Ernest N, Moda HM, Mubiru E, Mwema MF, Ndagire I, Olutona GO, Otieno P, Paguirigan JM, Quansah R, Ssemugabo C, Solomon S, Sosan MB, Sulaiman MB, Teklu BM, Tongo I, Uyi O, Cueva-Vásquez H, Veludo A, Viglietti P, Dalvie MA. Interventions to Reduce Pesticide Exposure from the Agricultural Sector in Africa: A Workshop Report. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19158973. [PMID: 35897345 PMCID: PMC9330002 DOI: 10.3390/ijerph19158973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 07/05/2022] [Accepted: 07/19/2022] [Indexed: 12/10/2022]
Abstract
Despite the fact that several cases of unsafe pesticide use among farmers in different parts of Africa have been documented, there is limited evidence regarding which specific interventions are effective in reducing pesticide exposure and associated risks to human health and ecology. The overall goal of the African Pesticide Intervention Project (APsent) study is to better understand ongoing research and public health activities related to interventions in Africa through the implementation of suitable target-specific situations or use contexts. A systematic review of the scientific literature on pesticide intervention studies with a focus on Africa was conducted. This was followed by a qualitative survey among stakeholders involved in pesticide research or management in the African region to learn about barriers to and promoters of successful interventions. The project was concluded with an international workshop in November 2021, where a broad range of topics relevant to occupational and environmental health risks were discussed such as acute poisoning, street pesticides, switching to alternatives, or disposal of empty pesticide containers. Key areas of improvement identified were training on pesticide usage techniques, research on the effectiveness of interventions targeted at exposure reduction and/or behavioral changes, awareness raising, implementation of adequate policies, and enforcement of regulations and processes.
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Affiliation(s)
- Martin Röösli
- Swiss Tropical and Public Health Institute (Swiss TPH), 4123 Allschwil, Switzerland; (C.B.); (S.C.-M.); (A.V.)
- Faculty of Science, University of Basel, 4001 Basel, Switzerland
- Correspondence: (M.R.); (S.F.); (M.A.D.)
| | - Samuel Fuhrimann
- Swiss Tropical and Public Health Institute (Swiss TPH), 4123 Allschwil, Switzerland; (C.B.); (S.C.-M.); (A.V.)
- Faculty of Science, University of Basel, 4001 Basel, Switzerland
- Correspondence: (M.R.); (S.F.); (M.A.D.)
| | - Aggrey Atuhaire
- Uganda National Association of Community and Occupational Health (UNACOH), YMCA Building, Plot 37/41, Buganda Road, Kampala P.O. BOX 12590, Uganda;
| | - Hanna-Andrea Rother
- Division of Environmental Health, School of Public Health and Family Medicine, University of Cape Town, Cape Town 7729, South Africa; (H.-A.R.); (L.L.)
| | - James Dabrowski
- Sustainability Research Unit, Nelson Mandela University, P.O. Box 6531, George 6530, South Africa;
| | - Brenda Eskenazi
- Center for Environmental Research and Community Health (CERCH), School of Public Health, University of California, Berkeley, CA 94720, USA;
| | - Erik Jørs
- Odense University Hospital, University of Southern Denmark, 5230 Odense, Denmark;
| | - Paul C. Jepson
- Oregon IPM Center, Oregon State University, Corvallis, OR 97331, USA;
| | - Leslie London
- Division of Environmental Health, School of Public Health and Family Medicine, University of Cape Town, Cape Town 7729, South Africa; (H.-A.R.); (L.L.)
| | - Saloshni Naidoo
- Discipline of Public Health Medicine, University of KwaZulu-Natal, Durban 4000, South Africa;
| | - Diane S. Rohlman
- College of Public Health, University of Iowa, Iowa City, IA 52242, USA;
| | - Ivy Saunyama
- Food and Agriculture Organization of the United Nations, Subregional Office for Southern Africa, Block 1 Tendeseka Office Park, Eastlea, Harare, Zimbabwe 00153 Rome, Italy;
| | - Berna van Wendel de Joode
- Infants’ Environmental Health Program (ISA), Central American Institute for Studies on Toxic Substances (IRET), Universidad Nacional de Costa Rica, Heredia 40101, Costa Rica;
| | - Adeoluwa O. Adeleye
- Department of Crop Production and Protection, Obafemi Awolowo University, Ile-Ife 220282, Nigeria; (A.O.A.); (O.O.A.); (M.B.S.)
| | - Oyebanji O. Alagbo
- Department of Crop Production and Protection, Obafemi Awolowo University, Ile-Ife 220282, Nigeria; (A.O.A.); (O.O.A.); (M.B.S.)
| | - Dem Aliaj
- Department of Health Sciences and Medicine, University of Lucerne, 6002 Lucerne, Switzerland;
| | - Jember Azanaw
- Department of Environmental and Occupational Health and Safety, Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia;
| | - Ravichandran Beerappa
- ICMR-Regional Occupational Health Centre (Southern), Bangalore 562110, India; (R.B.); (V.D.)
| | - Curdin Brugger
- Swiss Tropical and Public Health Institute (Swiss TPH), 4123 Allschwil, Switzerland; (C.B.); (S.C.-M.); (A.V.)
| | - Sunisa Chaiklieng
- Department of Environmental Health, Occupational Health and Safety, Faculty of Public Health, Khon Kaen University, Khon Kaen 40002, Thailand;
| | - Shala Chetty-Mhlanga
- Swiss Tropical and Public Health Institute (Swiss TPH), 4123 Allschwil, Switzerland; (C.B.); (S.C.-M.); (A.V.)
| | - Grace A. Chitra
- Global Institute of Public Health, Ananthapuri Hospitals and Research Institute, Trivandrum 695024, Kerala, India;
| | - Venugopal Dhananjayan
- ICMR-Regional Occupational Health Centre (Southern), Bangalore 562110, India; (R.B.); (V.D.)
| | - Afure Ejomah
- Department of Animal and Environmental Biology, University of Benin, P.M.B. 1154, Benin City 300212, Nigeria; (A.E.); (O.U.)
| | - Christian Ebere Enyoh
- Green and Sustainable Chemical Technologies, Graduate School of Science and Engineering, Saitama University, Saitama 3388570, Japan;
| | - Yamdeu Joseph Hubert Galani
- Section of Natural and Applied Sciences, School of Psychology and Life Sciences, Canterbury Christ Church University, Canterbury CT1 1QU, UK;
| | - Jonathan N. Hogarh
- Department of Environmental Science, College of Science, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana;
| | - Janefrances N. Ihedioha
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka 410001, Nigeria; (J.N.I.); (M.B.S.)
| | - Jeanne Priscille Ingabire
- Horticulture Program, Rwanda Agriculture and Animal Resources Development Board, Kigali 5016, Rwanda;
| | - Ellinor Isgren
- Lund University Centre for Sustainability Studies (LUCSUS), P.O. Box 170, SE-221 00 Lund, Sweden;
| | - Yêyinou Laura Estelle Loko
- Ecole Nationale Supérieure des Biosciences et Biotechnologies Appliquées (ENSBBA), Université Nationale des Sciences, Technologies, Ingénierie et Mathématiques (UNSTIM), BP 2282 Abomey, Benin;
| | - Liana Maree
- Department of Medical Bioscience, University of the Western Cape, Bellville 7493, South Africa;
| | - Nkoum Metou’ou Ernest
- Ministry of Agriculture and Rural Development, Cameroon, Direction of Regulation and Quality Control of Agricultural Inputs and Product, Messa, Yaoundé P.O. Box 2082, Cameroon;
| | - Haruna Musa Moda
- Department of Health Professions, Manchester Metropolitan University, Manchester M15 6BG, UK;
| | - Edward Mubiru
- Chemistry Department, School of Physical Sciences, College of Natural Sciences, Makerere University, Kampala, Uganda;
| | - Mwema Felix Mwema
- School of Materials, Energy, Water and Environmental Sciences, The Nelson Mandela African Institution of Science and Technology, Arusha P.O. Box 447, Tanzania;
| | - Immaculate Ndagire
- Southern and Eastern Africa Trade Information and Negotiation Institute (SEATINI) Uganda, Kampala P.O. Box 3138, Uganda;
| | - Godwin O. Olutona
- Industrial Chemistry Programme, College of Agriculture Engineering and Science, Bowen University, Iwo 232101, Nigeria;
| | - Peter Otieno
- Pest Control Products Board, Loresho, Nairobi P.O. Box 13794-00800, Kenya;
| | - Jordan M. Paguirigan
- Common Services Laboratory, Food and Drug Administration (FDA) Philippines, Alabang, Muntinlupa 1781, Philippines;
| | - Reginald Quansah
- School of Public Health, University of Ghana, Accra P.O. Box LG13, Ghana;
| | - Charles Ssemugabo
- Department of Disease Control and Environmental Health, School of Public Health, Makerere University College of Health Sciences, Kampala P.O. Box 7072, Uganda;
| | - Seruwo Solomon
- CropLife Uganda, Chicken House, Plot1, Old Kampala Road, Second Floor Room 17, Kampala P.O. Box 36592, Uganda;
| | - Mosudi B. Sosan
- Department of Crop Production and Protection, Obafemi Awolowo University, Ile-Ife 220282, Nigeria; (A.O.A.); (O.O.A.); (M.B.S.)
| | - Mohammad Bashir Sulaiman
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka 410001, Nigeria; (J.N.I.); (M.B.S.)
| | - Berhan M. Teklu
- Ethiopian Agriculture Authority, Addis Ababa P.O. Box 313003, Ethiopia;
- Faculty of Naval and Ocean Engineering, Istanbul Technical University, Maslak P.O. Box 34469, Turkey
| | - Isioma Tongo
- Laboratory for Ecotoxicology and Environmental Forensics, Department of Animal and Environmental Biology, University of Benin, P.M.B. 1154, Benin City 300212, Nigeria;
| | - Osariyekemwen Uyi
- Department of Animal and Environmental Biology, University of Benin, P.M.B. 1154, Benin City 300212, Nigeria; (A.E.); (O.U.)
- Department of Zoology and Entomology, Faculty of Natural and Agricultural Sciences, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa
| | - Henry Cueva-Vásquez
- Facultad de Ciencias de la Salud, Carrera de Medicina Humana Lima, Universidad Científica del Sur, Lima 15067, Peru;
| | - Adriana Veludo
- Swiss Tropical and Public Health Institute (Swiss TPH), 4123 Allschwil, Switzerland; (C.B.); (S.C.-M.); (A.V.)
| | - Paola Viglietti
- Centre for Environmental and Occupational Health (CEOHR), School of Public Health and Family Medicine, University of Cape Town, Cape Town 7700, South Africa;
| | - Mohamed Aqiel Dalvie
- Centre for Environmental and Occupational Health (CEOHR), School of Public Health and Family Medicine, University of Cape Town, Cape Town 7700, South Africa;
- Correspondence: (M.R.); (S.F.); (M.A.D.)
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6
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Ssemugabo C, Bradman A, Ssempebwa JC, Sillé F, Guwatudde D. Pesticide Residues in Fresh Fruit and Vegetables from Farm to Fork in the Kampala Metropolitan Area, Uganda. ENVIRONMENTAL HEALTH INSIGHTS 2022; 16:11786302221111866. [PMID: 35846167 PMCID: PMC9277444 DOI: 10.1177/11786302221111866] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 06/17/2022] [Indexed: 06/15/2023]
Abstract
This study assessed concentrations of pesticide residues in fruits and vegetables from farm-to-fork in Kampala Metropolitan Area, Uganda. A total of 160 samples of fruit and vegetables collected from farms, markets, streets, restaurants and homes were analysed using liquid chromatography-tandem mass spectrometry; and Gas Chromatograph-Mass Spectrometer for dithiocarbamates. Multiple pesticide residues were detected in majority of the samples (95.6%). The proportions of the most frequently detected pesticides residue classes were organophosphates (91.3%), carbamates (67.5%), pyrethroids (60.0%) dithiocarbamates (48.1%) and neonicotinoids (42.5%). Among organophosphates, propotamophos, acephate, fonofos, monocrotophos and dichlorvos were the most detected active ingredients; aminocarb, methomyl and pirimicarb were the commonly detected carbamates; while imidacloprid, a neonicotinoid and lambda-cyhalothrin, pyrethroid were also highly detected. Twenty-seven pesticide were tested at all stages, of which the concentrations either decreased or increased along the chain. Multiple pesticide residues occurred in commonly consumed fruit and vegetables with decreasing or increasing concentrations from farm-to-fork.
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Affiliation(s)
- Charles Ssemugabo
- Department of Disease Control and
Environmental Health, School of Public Health, Makerere University College of Health
Sciences, Kampala, Uganda
| | - Asa Bradman
- Department of Public Health, School of
Social Sciences, Humanities and Arts; University of California Merced, Merced, CA,
USA
- Center for Children’s Environmental
Health Research, School of Public Health, University of California, Berkeley, CA,
USA
| | - John C. Ssempebwa
- Department of Disease Control and
Environmental Health, School of Public Health, Makerere University College of Health
Sciences, Kampala, Uganda
| | - Fenna Sillé
- Department of Environmental Health and
Engineering, The Johns Hopkins University Bloomberg School of Public Health,
Baltimore, MD, USA
| | - David Guwatudde
- Department of Epidemiology and
Biostatistics, School of Public Health, Makerere University College of Health
Sciences, Kampala, Uganda
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7
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Wang C, Ye Q, Jiang A, Zhang J, Shang Y, Li F, Zhou B, Xiang X, Gu Q, Pang R, Ding Y, Wu S, Chen M, Wu Q, Wang J. Pseudomonas aeruginosa Detection Using Conventional PCR and Quantitative Real-Time PCR Based on Species-Specific Novel Gene Targets Identified by Pangenome Analysis. Front Microbiol 2022; 13:820431. [PMID: 35602063 PMCID: PMC9119647 DOI: 10.3389/fmicb.2022.820431] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 03/14/2022] [Indexed: 12/17/2022] Open
Abstract
Mining novel specific molecular targets and establishing efficient identification methods are significant for detecting Pseudomonas aeruginosa, which can enable P. aeruginosa tracing in food and water. Pangenome analysis was used to analyze the whole genomic sequences of 2017 strains (including 1,000 P. aeruginosa strains and 1,017 other common foodborne pathogen strains) downloaded from gene databases to obtain novel species-specific genes, yielding a total of 11 such genes. Four novel target genes, UCBPP-PA14_00095, UCBPP-PA14_03237, UCBPP-PA14_04976, and UCBPP-PA14_03627, were selected for use, which had 100% coverage in the target strain and were not present in nontarget bacteria. PCR primers (PA1, PA2, PA3, and PA4) and qPCR primers (PA12, PA13, PA14, and PA15) were designed based on these target genes to establish detection methods. For the PCR primer set, the minimum detection limit for DNA was 65.4 fg/μl, which was observed for primer set PA2 of the UCBPP-PA14_03237 gene. The detection limit in pure culture without pre-enrichment was 105 colony-forming units (CFU)/ml for primer set PA1, 103 CFU/ml for primer set PA2, and 104 CFU/ml for primer set PA3 and primer set PA4. Then, qPCR standard curves were established based on the novel species-specific targets. The standard curves showed perfect linear correlations, with R2 values of 0.9901 for primer set PA12, 0.9915 for primer set PA13, 0.9924 for primer set PA14, and 0.9935 for primer set PA15. The minimum detection limit of the real-time PCR (qPCR) assay was 102 CFU/ml for pure cultures of P. aeruginosa. Compared with the endpoint PCR and traditional culture methods, the qPCR assay was more sensitive by one or two orders of magnitude. The feasibility of these methods was satisfactory in terms of sensitivity, specificity, and efficiency after evaluating 29 ready-to-eat vegetable samples and was almost consistent with that of the national standard detection method. The developed assays can be applied for rapid screening and detection of pathogenic P. aeruginosa, providing accurate results to inform effective monitoring measures in order to improve microbiological safety.
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Affiliation(s)
- Chufang Wang
- College of Food Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Qinghua Ye
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Aiming Jiang
- College of Food Science, South China Agricultural University, Guangzhou, China
| | - Jumei Zhang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Yuting Shang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Fan Li
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Baoqing Zhou
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Xinran Xiang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Qihui Gu
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Rui Pang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Yu Ding
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Shi Wu
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Moutong Chen
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Qingping Wu
- College of Food Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Juan Wang
- College of Food Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
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Osaili TM, Al Sallagi M, Dhanasekaran D, Bani Odeh W, Al Ali H, Al Ali A, Radwan H, Obaid R, Holley R. Pesticide residues in fresh vegetables imported into the United Arab Emirates. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108663] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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9
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Fuhrimann S, Wan C, Blouzard E, Veludo A, Holtman Z, Chetty-Mhlanga S, Dalvie MA, Atuhaire A, Kromhout H, Röösli M, Rother HA. Pesticide Research on Environmental and Human Exposure and Risks in Sub-Saharan Africa: A Systematic Literature Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 19:259. [PMID: 35010520 PMCID: PMC8750985 DOI: 10.3390/ijerph19010259] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 12/11/2021] [Accepted: 12/14/2021] [Indexed: 12/16/2022]
Abstract
On the African continent, ongoing agriculture intensification is accompanied by the increasing use of pesticides, associated with environmental and public health concerns. Using a systematic literature review, we aimed to map current geographical research hotspots and gaps around environmental and public health risks research of agriculture pesticides in Sub-Saharan Africa (SSA). Studies were included that collected primary data on past and current-used agricultural pesticides and assessed their environmental occurrence, related knowledge, attitude and practice, human exposure, and environmental or public health risks between 2006 and 2021. We identified 391 articles covering 469 study sites in 37 countries in SSA. Five geographical research hotspots were identified: two in South Africa, two in East Africa, and one in West Africa. Despite its ban for agricultural use, organochlorine was the most studied pesticide group (60%; 86% of studies included DDT). Current-used pesticides in agriculture were studied in 54% of the study sites (including insecticides (92%), herbicides (44%), and fungicides (35%)). Environmental samples were collected in 67% of the studies (e.g., water, aquatic species, sediment, agricultural produce, and air). In 38% of the studies, human subjects were investigated. Only few studies had a longitudinal design or assessed pesticide's environmental risks; human biomarkers; dose-response in human subjects, including children and women; and interventions to reduce pesticide exposure. We established a research database that can help stakeholders to address research gaps, foster research collaboration between environmental and health dimensions, and work towards sustainable and safe agriculture systems in SSA.
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Affiliation(s)
- Samuel Fuhrimann
- Swiss Tropical and Public Health Institute (Swiss TPH), 4002 Basel, Switzerland; (A.V.); (S.C.-M.); (M.R.)
- Faculty of Science, University of Basel, 4002 Basel, Switzerland
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, 3584 CM Utrecht, The Netherlands; (E.B.); (H.K.)
| | - Chenjie Wan
- Department of Environmental Systems Science, ETH Zurich, 8092 Zurich, Switzerland;
| | - Elodie Blouzard
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, 3584 CM Utrecht, The Netherlands; (E.B.); (H.K.)
| | - Adriana Veludo
- Swiss Tropical and Public Health Institute (Swiss TPH), 4002 Basel, Switzerland; (A.V.); (S.C.-M.); (M.R.)
- Faculty of Science, University of Basel, 4002 Basel, Switzerland
| | - Zelda Holtman
- Centre for Environmental and Occupational Health Research, School of Public Health and Family Medicine, University of Cape Town, Cape Town 7729, South Africa; (Z.H.); (M.A.D.); (H.-A.R.)
- Division of Environmental Health, School of Public Health and Family Medicine, University of Cape Town, Cape Town 7729, South Africa
| | - Shala Chetty-Mhlanga
- Swiss Tropical and Public Health Institute (Swiss TPH), 4002 Basel, Switzerland; (A.V.); (S.C.-M.); (M.R.)
- Faculty of Science, University of Basel, 4002 Basel, Switzerland
| | - Mohamed Aqiel Dalvie
- Centre for Environmental and Occupational Health Research, School of Public Health and Family Medicine, University of Cape Town, Cape Town 7729, South Africa; (Z.H.); (M.A.D.); (H.-A.R.)
| | - Aggrey Atuhaire
- Uganda National Association of Community and Occupational Health (UNACOH), Kampala 12590, Uganda;
| | - Hans Kromhout
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, 3584 CM Utrecht, The Netherlands; (E.B.); (H.K.)
| | - Martin Röösli
- Swiss Tropical and Public Health Institute (Swiss TPH), 4002 Basel, Switzerland; (A.V.); (S.C.-M.); (M.R.)
- Faculty of Science, University of Basel, 4002 Basel, Switzerland
| | - Hanna-Andrea Rother
- Centre for Environmental and Occupational Health Research, School of Public Health and Family Medicine, University of Cape Town, Cape Town 7729, South Africa; (Z.H.); (M.A.D.); (H.-A.R.)
- Division of Environmental Health, School of Public Health and Family Medicine, University of Cape Town, Cape Town 7729, South Africa
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