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Kumar S, Kaushal JB, Lee HP. Sustainable Sensing with Paper Microfluidics: Applications in Health, Environment, and Food Safety. BIOSENSORS 2024; 14:300. [PMID: 38920604 PMCID: PMC11202065 DOI: 10.3390/bios14060300] [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: 05/13/2024] [Revised: 06/04/2024] [Accepted: 06/05/2024] [Indexed: 06/27/2024]
Abstract
This manuscript offers a concise overview of paper microfluidics, emphasizing its sustainable sensing applications in healthcare, environmental monitoring, and food safety. Researchers have developed innovative sensing platforms for detecting pathogens, pollutants, and contaminants by leveraging the paper's unique properties, such as biodegradability and affordability. These portable, low-cost sensors facilitate rapid diagnostics and on-site analysis, making them invaluable tools for resource-limited settings. This review discusses the fabrication techniques, principles, and applications of paper microfluidics, showcasing its potential to address pressing challenges and enhance human health and environmental sustainability.
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Affiliation(s)
- Sanjay Kumar
- Durham School of Architectural Engineering and Construction, University of Nebraska-Lincoln, Scott Campus, Omaha, NE 68182-0816, USA
| | - Jyoti Bala Kaushal
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Heow Pueh Lee
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore;
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Alonso-Hearn M, Ballesteros A, Navarro A, Badia-Bringué G, Casais R. Lateral-flow assays for bovine paratuberculosis diagnosis. Front Vet Sci 2023; 10:1257488. [PMID: 37901111 PMCID: PMC10601461 DOI: 10.3389/fvets.2023.1257488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 09/27/2023] [Indexed: 10/31/2023] Open
Abstract
Mycobacterium avium subsp. paratuberculosis (MAP) causes bovine paratuberculosis (PTB). PTB is responsible for significant economic losses in dairy herds around the word. PTB control programs that rely on testing and culling of test-positive cows have been developed. Current diagnostics, such as ELISA for detecting MAP antibodies in serum samples and PCR detecting MAP DNA in feces, have inadequate sensitivity for detecting subclinical animals. Innovative "omics" technologies such as next-generation sequencing (NGS) technology-based RNA-sequencing (RNA-Seq), proteomics and metabolomics can be used to find host biomarkers. The discovered biomarkers (RNA, microRNAs, proteins, metabolites) can then be used to develop new and more sensitive approaches for PTB diagnosis. Traditional approaches for measuring host antibodies and biomarkers, such as ELISAs, northern blotting, quantitative reverse-transcriptase polymerase chain reaction (RT-qPCR), cDNA microarrays, and mass spectrometry are time-consuming, expensive, and sometimes exhibit poor sensitivity. With the rapid development of nanotechnology, low-cost monitoring devices for measuring antibodies against MAP proteins in point-of-care (POC) settings have been developed. Lateral flow assays (LFAs), in particular, are thought to be appropriate for the on-site detection of antibodies to MAP antigens and/or host biomarkers. This review aims to summarize LFAs that have recently been developed to accurately detect antibodies against MAP antigens, as well as the benefits that host biomarkers linked with MAP infection give to PTB diagnosis. The identification of these novel biomarkers could be the basis for the development of new LFAs. The dairy industry and producers are likely to benefit from reliable and rapid technologies capable of detecting MAP infection in situ to establish a quick and sensitive PTB diagnosis.
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Affiliation(s)
- Marta Alonso-Hearn
- Department of Animal Health, NEIKER-Basque Institute for Agricultural Research and Development, Basque Research and Technology Alliance, Derio, Bizkaia, Spain
| | - Ana Ballesteros
- Biolan Health S.L, Technological Park of Bizkaia, Zamudio, Bizkaia, Spain
| | - Alejandra Navarro
- SERIDA, Servicio Regional de Investigación y Desarrollo Agroalimentario, Center of Animal Biotechnology, Deva, Asturias, Spain
| | - Gerard Badia-Bringué
- Department of Animal Health, NEIKER-Basque Institute for Agricultural Research and Development, Basque Research and Technology Alliance, Derio, Bizkaia, Spain
| | - Rosa Casais
- SERIDA, Servicio Regional de Investigación y Desarrollo Agroalimentario, Center of Animal Biotechnology, Deva, Asturias, Spain
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Point-of-Care Diagnostics for Farm Animal Diseases: From Biosensors to Integrated Lab-on-Chip Devices. BIOSENSORS 2022; 12:bios12070455. [PMID: 35884258 PMCID: PMC9312888 DOI: 10.3390/bios12070455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/22/2022] [Accepted: 06/23/2022] [Indexed: 02/06/2023]
Abstract
Zoonoses and animal diseases threaten human health and livestock biosecurity and productivity. Currently, laboratory confirmation of animal disease outbreaks requires centralized laboratories and trained personnel; it is expensive and time-consuming, and it often does not coincide with the onset or progress of diseases. Point-of-care (POC) diagnostics are rapid, simple, and cost-effective devices and tests, that can be directly applied on field for the detection of animal pathogens. The development of POC diagnostics for use in human medicine has displayed remarkable progress. Nevertheless, animal POC testing has not yet unfolded its full potential. POC devices and tests for animal diseases face many challenges, such as insufficient validation, simplicity, and portability. Emerging technologies and advanced materials are expected to overcome some of these challenges and could popularize animal POC testing. This review aims to: (i) present the main concepts and formats of POC devices and tests, such as lateral flow assays and lab-on-chip devices; (ii) summarize the mode of operation and recent advances in biosensor and POC devices for the detection of farm animal diseases; (iii) present some of the regulatory aspects of POC commercialization in the EU, USA, and Japan; and (iv) summarize the challenges and future perspectives of animal POC testing.
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Ghosh A, Jangra S, Dietzgen RG, Yeh WB. Frontiers Approaches to the Diagnosis of Thrips (Thysanoptera): How Effective Are the Molecular and Electronic Detection Platforms? INSECTS 2021; 12:insects12100920. [PMID: 34680689 PMCID: PMC8540714 DOI: 10.3390/insects12100920] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 10/01/2021] [Accepted: 10/04/2021] [Indexed: 11/23/2022]
Abstract
Simple Summary Thrips are important agricultural and forest pests. They cause damage by sucking plant sap and transmitting several plant viruses. Correct identification is the key for epidemiological studies and formulating appropriate management strategies. The application of molecular and electronic detection platforms has improved the morphological character-based diagnosis of thrips species. This article reviews research on molecular and automated identification of thrips species and discusses future research strategies for rapid and high throughput thrips diagnosis. Abstract Thrips are insect pests of economically important agricultural, horticultural, and forest crops. They cause damage by sucking plant sap and by transmitting several tospoviruses, ilarviruses, carmoviruses, sobemoviruses, and machlomoviruses. Accurate and timely identification is the key to successful management of thrips species. However, their small size, cryptic nature, presence of color and reproductive morphs, and intraspecies genetic variability make the identification of thrips species challenging. The use of molecular and electronic detection platforms has made thrips identification rapid, precise, sensitive, high throughput, and independent of developmental stages. Multi-locus phylogeny based on mitochondrial, nuclear, and other markers has resolved ambiguities in morphologically indistinguishable thrips species. Microsatellite, RFLP, RAPD, AFLP, and CAPS markers have helped to explain population structure, gene flow, and intraspecies heterogeneity. Recent techniques such as LAMP and RPA have been employed for sensitive and on-site identification of thrips. Artificial neural networks and high throughput diagnostics facilitate automated identification. This review also discusses the potential of pyrosequencing, microarrays, high throughput sequencing, and electronic sensors in delimiting thrips species.
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Affiliation(s)
- Amalendu Ghosh
- Insect Vector Laboratory, Advanced Centre for Plant Virology, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India; (A.G.); (S.J.)
| | - Sumit Jangra
- Insect Vector Laboratory, Advanced Centre for Plant Virology, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India; (A.G.); (S.J.)
| | - Ralf G. Dietzgen
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St. Lucia, Brisbane, QLD 4072, Australia
- Correspondence:
| | - Wen-Bin Yeh
- Department of Entomology, National Chung Hsing University, Taichung City 402, Taiwan;
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Gupta Y, Ghrera AS. Recent advances in gold nanoparticle-based lateral flow immunoassay for the detection of bacterial infection. Arch Microbiol 2021; 203:3767-3784. [PMID: 34086107 DOI: 10.1007/s00203-021-02357-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 04/24/2021] [Accepted: 05/03/2021] [Indexed: 12/17/2022]
Abstract
Diagnosis of bacterial infections (BI) is becoming an increasingly difficult task in clinical practice due to their high prevalence and frequency, as well as the growth of antibiotic resistance worldwide. World Health Organization (WHO) reported antibiotic resistance is a major public health problem. BI becomes difficult or impossible to treat when the bacteria acquire immunity against antibiotics. Thus, there is a need for a quick and accurate technique to detect infection. Lateral flow immunoassay (LFIA) is an ideal technique for point-of-care testing of a disease or pathological changes inside the human body. In recent years, several LFIA based strips are being used for the detection of BI by targeting specific analytes which may range from the causative bacterium, whole-cell, DNA, or biomarker. Numerous nanoparticles like lipid-based nanoparticles, polymeric nanoparticles, and inorganic nanoparticles such as quantum dots, magnetic, ceramic, and metallic nanoparticles (copper, silver gold, iron) are widely being used in the advanced treatment of BI. Out of these gold nanoparticle (AuNPs), is being used for detection BI more effectively than other nanoparticles due to their surface functionalization, extraordinary chemical stability, biorecognition, and signal amplification properties and help to improve in conjugation with capture antibodies, and act as a color marker with unique optical properties on LFIA strips. Herein, a review that provides an overview of the principle of LFIA, how LFIA based strip is developed, and how it is helpful to detect a specific biomarker for bedside detection of the BI.
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Affiliation(s)
- Yachana Gupta
- Applied Science Department, The NorthCap University, Gurugram, India
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Rungkamoltip P, Temisak S, Piboonprai K, Japrung D, Thangsunan P, Chanpanitkitchot S, Chaowawanit W, Chandeying N, Tangjitgamol S, Iempridee T. Rapid and ultrasensitive detection of circulating human papillomavirus E7 cell-free DNA as a cervical cancer biomarker. Exp Biol Med (Maywood) 2020; 246:654-666. [PMID: 33307803 DOI: 10.1177/1535370220978899] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Circulating cell-free DNA (cfDNA) has attracted attention as a non-invasive biomarker for diagnosing and monitoring various cancers. Given that human papillomavirus (HPV) DNA integration and overexpression of E6/E7 oncogenes are pivotal events for carcinogenesis, we sought to determine if HPV E7 cfDNA could serve as a specific biomarker for cervical cancer detection. We applied droplet digital PCR (ddPCR) to quantify HPV16/18 E7 cfDNA from the serum of patients with cervical cancer, cervical intraepithelial neoplasia, and controls. HPV16/18 E7 cfDNA was highly specific for cervical cancer, displaying 30.77% sensitivity, 100% specificity, and an area under the curve of 0.65. Furthermore, we developed a sensitive isothermal detection of HPV16/18 E7 and the PIK3CA WT reference gene based on recombinase polymerase amplification combined with a lateral flow strip (RPA-LF). The assay took less than 30 min and the detection limit was 5-10 copies. RPA-LF exhibited 100% sensitivity and 88.24% specificity towards HPV16/18 E7 cfDNA in clinical samples. The agreement between RPA-LF and ddPCR was 83.33% (κ = 0.67) for HPV16 E7 and 100% (κ = 1.0) for HPV18 E7, indicating a good correlation between both tests. Therefore, we conclude that HPV E7 cfDNA represents a potential tumor marker with excellent specificity and moderate sensitivity for minimally invasive cervical cancer monitoring. Moreover, the RPA-LF assay provides an affordable, rapid, and ultrasensitive tool for detecting HPV cfDNA in resource-limited settings.
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Affiliation(s)
- Phetploy Rungkamoltip
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Sasithon Temisak
- Chemical Metrology and Biometry Department, National Institute of Metrology (NIMT), Pathum Thani 12120, Thailand
| | - Kitiya Piboonprai
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand.,Laboratory of Host Defense, The World Premier International Research Center Initiative (WPI) Immunology Frontier Research Center (IFReC), Osaka University, Osaka 565-0871, Japan
| | - Deanpen Japrung
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Pattanapong Thangsunan
- Chemical Metrology and Biometry Department, National Institute of Metrology (NIMT), Pathum Thani 12120, Thailand
| | - Saranya Chanpanitkitchot
- Department of Obstetrics and Gynecology, Rajavithi Hospital, College of Medicine, Rangsit University, Bangkok 10400, Thailand
| | - Woraphot Chaowawanit
- Department of Obstetrics and Gynecology, Faculty of Medicine Vajira Hospital, Navamindhadhiraj University, Bangkok 10300, Thailand
| | - Nutthaporn Chandeying
- Department of Obstetrics and Gynecology, Faculty of Medicine Vajira Hospital, Navamindhadhiraj University, Bangkok 10300, Thailand
| | - Siriwan Tangjitgamol
- Department of Obstetrics and Gynecology, Faculty of Medicine Vajira Hospital, Navamindhadhiraj University, Bangkok 10300, Thailand.,Obstetrics and Gynecology Section, MedPark Hospital, Bangkok 10110, Thailand
| | - Tawin Iempridee
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
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Hu J, Zhang Z. Application of Electrochemical Sensors Based on Carbon Nanomaterials for Detection of Flavonoids. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2020. [PMID: 33066360 PMCID: PMC7602283 DOI: 10.3390/nano10102020] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/07/2020] [Accepted: 10/12/2020] [Indexed: 12/30/2022]
Abstract
Flavonoids have a variety of physiological activities such as anti-free radicals, regulating hormone levels, antibacterial factors, and anti-cancer factors, which are widely present in edible and medicinal plants. Real-time detection of flavonoids is a key step in the quality control of diverse matrices closely related to social, economic, and health issues. Traditional detection methods are time-consuming and require expensive equipment and complicated working conditions. Therefore, electrochemical sensors with high sensitivity and fast detection speed have aroused extensive research interest. Carbon nanomaterials are preferred material in improving the performance of electrochemical sensing. In this paper, we review the progress of electrochemical sensors based on carbon nanomaterials including carbon nanotubes, graphene, carbon and graphene quantum dots, mesoporous carbon, and carbon black for detecting flavonoids in food and drug homologous substances in the last four years. In addition, we look forward to the prospects and challenges of this research field.
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Affiliation(s)
| | - Zhenguo Zhang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Key Laboratory of Food Nutrition and Safety, College of Life Sciences, Shandong Normal University, Jinan 250014, China;
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Wang S, Ma X, Wang H, He H. Induction of the Unfolded Protein Response during Bovine Alphaherpesvirus 1 Infection. Viruses 2020; 12:v12090974. [PMID: 32887282 PMCID: PMC7552016 DOI: 10.3390/v12090974] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/27/2020] [Accepted: 08/31/2020] [Indexed: 12/29/2022] Open
Abstract
Bovine herpesvirus 1 (BoHV-1) is an alphaherpesvirus that causes great economic losses in the cattle industry. Herpesvirus infection generally induces endoplasmic reticulum (ER) stress, and the unfolded protein response (UPR) in infected cells. However, it is not clear whether ER stress and UPR can be induced by BoHV-1 infection. Here, we found that ER stress induced by BoHV-1 infection could activate all three UPR sensors (the activating transcription factor 6 (ATF6), the inositol-requiring enzyme 1 (IRE1), and the protein kinase RNA-like ER kinase (PERK)) in MDBK cells. During BoHV-1 infection, the ATF6 pathway of UPR did not affect viral replication. However, both knockdown and specific chemical inhibition of PERK attenuated the BoHV-1 proliferation, and chemical inhibition of PERK significantly reduced the viral replication at the post-entry step of the BoHV-1 life cycle. Furthermore, knockdown of IRE1 inhibits BoHV-1 replication, indicating that the IRE1 pathway may promote viral replication. Further study revealed that BoHV-1 replication was enhanced by IRE1 RNase activity inhibition at the stage of virus post-entry in MDBK cells. Furthermore, IRE1 kinase activity inhibition and RNase activity enhancement decrease BoHV1 replication via affecting the virus post-entry step. Our study revealed that BoHV-1 infection activated all three UPR signaling pathways in MDBK cells, and BoHV-1-induced PERK and IRE1 pathways may promote viral replication. This study provides a new perspective for the interactions of BoHV-1 and UPR, which is helpful to further elucidate the mechanism of BoHV-1 pathogenesis.
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Affiliation(s)
- Song Wang
- Ruminant Diseases Research Center, College of Life Sciences, Shandong Normal University, Jinan 250014, China; (S.W.); (X.M.)
- Key Laboratory of Animal Resistant Biology of Shandong, College of Life Sciences, Shandong Normal University, Jinan 250014, China
| | - Xiaomei Ma
- Ruminant Diseases Research Center, College of Life Sciences, Shandong Normal University, Jinan 250014, China; (S.W.); (X.M.)
- Key Laboratory of Animal Resistant Biology of Shandong, College of Life Sciences, Shandong Normal University, Jinan 250014, China
| | - Hongmei Wang
- Ruminant Diseases Research Center, College of Life Sciences, Shandong Normal University, Jinan 250014, China; (S.W.); (X.M.)
- Key Laboratory of Animal Resistant Biology of Shandong, College of Life Sciences, Shandong Normal University, Jinan 250014, China
- Correspondence: (H.W.); (H.H.)
| | - Hongbin He
- Ruminant Diseases Research Center, College of Life Sciences, Shandong Normal University, Jinan 250014, China; (S.W.); (X.M.)
- Key Laboratory of Animal Resistant Biology of Shandong, College of Life Sciences, Shandong Normal University, Jinan 250014, China
- Correspondence: (H.W.); (H.H.)
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Agrawal A, Varshney R, Gattani A, Kirthika P, Khan MH, Singh R, Kodape S, Patel SK, Singh P. Gold nanoparticle based immunochromatographic biosensor for rapid diagnosis of Mycobacterium avium subspecies paratuberculosis infection using recombinant protein. J Microbiol Methods 2020; 177:106024. [PMID: 32795639 DOI: 10.1016/j.mimet.2020.106024] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 07/28/2020] [Accepted: 08/03/2020] [Indexed: 01/08/2023]
Abstract
Highly infectious and obvious withstand ability of Mycobacterium avium subspecies paratuberculosis (MAP) to environment as well as lack of on-site field diagnostic methods notably hampers the paratuberculosis (PTB) control. The existing intricacy, time-consuming and complicated diagnostic methods of PTB accentuate the development of novel and easy-to-perform on-site test. A gold nanoparticle (GNP) based lateral-flow assay (LFA) using MAP recombinant protein (44 kDa) has been developed for sensitive and specific detection of PTB in field conditions. The diagnostic sensitivity and specificity of the LFA for MAP specific antibodies was found approximately 84.2% and 83.3% in comparison to indirect enzyme-linked immunosorbent assay. Consequently, the newly developed GNP based LFA offers on-site and cost-effective method for the prompt diagnosis of PTB and precludes the time-consuming laboratory screening.
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Affiliation(s)
- Aditya Agrawal
- Division of Animal Biochemistry, IVRI, Izatnagar, Bareilly, U.P. 243122, India.
| | - Rajat Varshney
- Division of Bacteriology and Mycology, IVRI, Izatnagar, Bareilly, U.P. 243122, India; Department of Veterinary Microbiology, FVAS, IAS, RGSC, BHU, Barkachha, Mirzapur UP-231001, India.
| | - Anil Gattani
- Division of Animal Biochemistry, IVRI, Izatnagar, Bareilly, U.P. 243122, India; Department of Veterinary biochemistry, Bihar veterinary college, Patna 800014, India.
| | - P Kirthika
- Division of Animal Biochemistry, IVRI, Izatnagar, Bareilly, U.P. 243122, India.
| | - Mahvash Hira Khan
- Division of Animal Biochemistry, IVRI, Izatnagar, Bareilly, U.P. 243122, India.
| | - Rahul Singh
- Division of Pathology, IVRI, Izatnagar, Bareilly, U.P. 243122, India.
| | - Shantanu Kodape
- Division of Veterinary Biotechnology, IVRI, Izatnagar, Bareilly, U.P. 243122, India.
| | | | - Praveen Singh
- Division of Animal Biochemistry, IVRI, Izatnagar, Bareilly, U.P. 243122, India.
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Zhang C, Du X. Electrochemical Sensors Based on Carbon Nanomaterial Used in Diagnosing Metabolic Disease. Front Chem 2020; 8:651. [PMID: 32850664 PMCID: PMC7432198 DOI: 10.3389/fchem.2020.00651] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 06/22/2020] [Indexed: 12/12/2022] Open
Abstract
Metabolic diseases have become common diseases with the improvement of living standards because of changed dietary habits and living habits, which seriously affect health. Currently, related biomarkers have been widely used as important indicators for clinical diagnosis, treatment, and prognosis of metabolic diseases. Among all detection methods for biomarkers of metabolic diseases, electrochemical sensor technology has the advantages of simplicity, real-time analysis, and low cost. Carbon nanomaterials were preeminent materials for fabricating electrochemical sensors in order to enhance the performance. In this paper, we summarize the research progress in the past 3 years of electrochemical sensors based on carbon nanomaterials in detecting markers of metabolic diseases, which include carbon nanotubes, graphene, carbon quantum dots, fullerene, and carbon nitride. Additionally, we discuss the future prospects for this field.
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Affiliation(s)
- Congcong Zhang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Key Laboratory of Food Nutrition and Safety, College of Life Sciences, Shandong Normal University, Jinan, China
| | - Xin Du
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Key Laboratory of Food Nutrition and Safety, College of Life Sciences, Shandong Normal University, Jinan, China
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Rapid Multi-Residue Detection Methods for Pesticides and Veterinary Drugs. Molecules 2020; 25:molecules25163590. [PMID: 32784605 PMCID: PMC7464912 DOI: 10.3390/molecules25163590] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/29/2020] [Accepted: 08/05/2020] [Indexed: 01/11/2023] Open
Abstract
The excessive use or abuse of pesticides and veterinary drugs leads to residues in food, which can threaten human health. Therefore, there is an extremely urgent need for multi-analyte analysis techniques for the detection of pesticide and veterinary drug residues, which can be applied as screening techniques for food safety monitoring and detection. Recent developments related to rapid multi-residue detection methods for pesticide and veterinary drug residues are reviewed herein. Methods based on different recognition elements or the inherent characteristics of pesticides and veterinary drugs are described in detail. The preparation and application of three broadly specific recognition elements-antibodies, aptamers, and molecular imprinted polymers-are summarized. Furthermore, enzymatic inhibition-based sensors, near-infrared spectroscopy, and SERS spectroscopy based on the inherent characteristics are also discussed. The aim of this review is to provide a useful reference for the further development of rapid multi-analyte analysis of pesticide and veterinary drug residues.
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Hou P, Xu Y, Wang H, He H. Detection of bovine viral diarrhea virus genotype 1 in aerosol by a real time RT-PCR assay. BMC Vet Res 2020; 16:114. [PMID: 32295612 PMCID: PMC7159024 DOI: 10.1186/s12917-020-02330-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 03/30/2020] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND As a pestivirus of the Flaviviridae family, bovine viral diarrhea virus (BVDV), has imposed a large burden on animal husbandry worldwide, and such virus can be transmitted mainly through direct contact with other infected animals and probably via aerosols. In the present study, we aimed to develop a real-time RT-PCR method for detection of BVDV-1 in aerosol samples. METHODS A pair of primers specific for highly conserved regions of the BVDV-1 5'-UTR was designed. The standard curve and sensitivity of the developed assay were assessed based on 10-fold serial dilutions of RNA molecular standard. The specificity of the assay was evaluated with other pestiviruses and infectious bovine viruses. The clinical performance was examined by testing 169 aerosol samples. RESULTS The results showed that a good linear relationship existed between the standard curve and the concentration of template. The lowest detection limit was 5.2 RNA molecules per reaction. This assay was specific for detection of BVDV-1, and no amplification was found for other pestiviruses such as classical swine fever virus (CSFV), border disease virus (BDV), and common infectious bovine viruses, including BVDV-2, infectious bovine rhinotracheitis virus (IBRV), bovine parainfluenza virus type 3 (BPIV-3), bovine respiratory syncytial virus (BRSV), bovine ephemeral fever virus (BEFV) and bovine coronavirus (BcoV). The assay was highly reproducible with low variation coefficient values (CVs) for intra-assay and inter-assay. A total of 169 aerosol samples collected from six dairy herds were tested using this method. The results showed that the positive detection rate of BVDV-1 was 17.2% (29/169), which was significantly higher compared with the conventional RT-PCR. Additionally, the positive samples (n = 29) detected by real-time RT-PCR were verified by BVDV RPA-LFD, and a concordance rate of 100% was obtained between them. CONCLUSIONS Taken together, we developed a real-time RT-PCR assay for quantitative analysis of BVDV-1 in aerosol samples, and our finding provided valuable insights into the risk on aerosol transmission of BVDV-1.
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Affiliation(s)
- Peili Hou
- Ruminant Diseases Research Center, College of Life Sciences, Shandong Normal University, No.88 East Wenhua Road, Jinan City, Shandong Province China
| | - Yaru Xu
- Ruminant Diseases Research Center, College of Life Sciences, Shandong Normal University, No.88 East Wenhua Road, Jinan City, Shandong Province China
| | - Hongmei Wang
- Ruminant Diseases Research Center, College of Life Sciences, Shandong Normal University, No.88 East Wenhua Road, Jinan City, Shandong Province China
| | - Hongbin He
- Ruminant Diseases Research Center, College of Life Sciences, Shandong Normal University, No.88 East Wenhua Road, Jinan City, Shandong Province China
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Ma B, Li J, Chen K, Yu X, Sun C, Zhang M. Multiplex Recombinase Polymerase Amplification Assay for the Simultaneous Detection of Three Foodborne Pathogens in Seafood. Foods 2020; 9:E278. [PMID: 32138267 PMCID: PMC7143093 DOI: 10.3390/foods9030278] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 02/23/2020] [Accepted: 02/25/2020] [Indexed: 12/24/2022] Open
Abstract
Foodborne pathogens can cause foodborne illness. In reality, one food sample may carry more than one pathogen. A rapid, sensitive, and multiple target method for bacteria detection is crucial in food safety. For the simultaneous detection of Staphylococcus aureus, Vibrio parahaemolyticus, and Salmonella Enteritidis, multi-objective recombinase polymerase amplification (RPA) combined with a lateral flow dipstick (LFD) was developed in this study. The whole process, including amplification and reading, can be completed in 15 min at 37 °C. The detection limits were 2.6 × 101 CFU/mL for Staphylococcus aureus, 7.6 × 101 CFU/mL for Vibrio parahaemolyticus, and 1.29 × 101 CFU/mL for Salmonella Enteritidis. Moreover, colored signal intensities on test lines were measured by a test strip reader to achieve quantitative detection for Staphylococcus aureus (R2 = 0.9903), Vibrio parahaemolyticus (R2 = 0.9928), and Salmonella Enteritidis (R2 = 0.9945). In addition, the method demonstrated good recoveries (92.00%-107.95%) in the testing of spiked food samples. Therefore, the multiplex LFD-RPA assay is a feasible method for the rapid, sensitive, and quantitative detection of bacterial pathogens in seafood.
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Affiliation(s)
- Biao Ma
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (B.M.); (J.L.); (K.C.); (X.Y.)
| | - Jiali Li
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (B.M.); (J.L.); (K.C.); (X.Y.)
| | - Kai Chen
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (B.M.); (J.L.); (K.C.); (X.Y.)
| | - Xiaoping Yu
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (B.M.); (J.L.); (K.C.); (X.Y.)
| | - Chuanxin Sun
- Department of Plant Biology, Uppsala BioCenter, Linnean Centre for Plant Biology, Swedish University of Agricultural Science (SLU), SE-75007 Uppsala, Sweden;
| | - Mingzhou Zhang
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (B.M.); (J.L.); (K.C.); (X.Y.)
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14
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Dong D, Xie W, Liu M. Alteration of cell junctions during viral infection. Thorac Cancer 2020; 11:519-525. [PMID: 32017415 PMCID: PMC7049484 DOI: 10.1111/1759-7714.13344] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/13/2020] [Accepted: 01/14/2020] [Indexed: 12/21/2022] Open
Abstract
Cell junctions serve as a protective barrier for cells and provide an important channel for information transmission between cells and the surrounding environment. Viruses are parasites that invade and commandeer components of host cells in order to survive and replicate, and they have evolved various mechanisms to alter cell junctions to facilitate viral infection. In this review, we examined the current state of knowledge on the action of viruses on host cell junctions. The existing evidence suggests that targeting the molecules involved in the virus-cell junction interaction can prevent the spread of viral diseases.
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Affiliation(s)
- Dan Dong
- Institute of Biomedical Sciences, Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, College of Life Sciences, Shandong Normal University, Jinan, China
| | - Wei Xie
- Institute of Biomedical Sciences, Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, College of Life Sciences, Shandong Normal University, Jinan, China
| | - Min Liu
- Institute of Biomedical Sciences, Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, College of Life Sciences, Shandong Normal University, Jinan, China
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15
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Jiang H, Hou P, He H, Wang H. Cell apoptosis regulated by interaction between viral gene alpha 3 and host heterogeneous nuclear ribonucleoprotein K facilitates bovine ephemeral fever virus replication. Vet Microbiol 2020; 240:108510. [DOI: 10.1016/j.vetmic.2019.108510] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 11/13/2019] [Accepted: 11/14/2019] [Indexed: 02/06/2023]
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16
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Lv L, Zhao G, Wang H, He H. Cholesterol 25-Hydroxylase inhibits bovine parainfluenza virus type 3 replication through enzyme activity-dependent and -independent ways. Vet Microbiol 2019; 239:108456. [DOI: 10.1016/j.vetmic.2019.108456] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 10/02/2019] [Accepted: 10/07/2019] [Indexed: 12/11/2022]
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17
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Yu Z, Cheng K, He H, Wu J. A novel reassortant influenza A (H1N1) virus infection in swine in Shandong Province, eastern China. Transbound Emerg Dis 2019; 67:450-454. [PMID: 31535780 DOI: 10.1111/tbed.13360] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 08/23/2019] [Accepted: 09/11/2019] [Indexed: 11/30/2022]
Abstract
Influenza A (H1N1) viruses are distributed worldwide and pose a threat to public health. Swine, as a natural host and mixing vessel of influenza A (H1N1) virus, play a critical role in the transmission of this virus to humans. Furthermore, swine influenza A (H1N1) viruses have provided all eight genes or some genes to the genomes of influenza strains that historically have caused human pandemics. Hence, persistent surveillance of influenza A (H1N1) virus in swine herds could contribute to the prevention and control of this virus. Here, we report a novel reassortant influenza A (H1N1) virus generated by reassortment between 2009 pandemic H1N1 viruses and swine viruses. We also found that this virus is prevalent in swine herds in Shandong Province, eastern China. Our findings suggest that surveillance of the emergence of the novel reassortant influenza A (H1N1) virus in swine is imperative.
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Affiliation(s)
- Zhijun Yu
- Poultry Institute, Shandong Academy of Agricultural Sciences, Jinan, People's Republic of China.,Shandong Provincial Key Laboratory of Poultry Diseases Diagnosis and Immunology, Jinan, China.,Poultry Breeding Engineering Technology Center of Shandong Province, Jinan, China
| | - Kaihui Cheng
- Dairy Cattle Research Center, Shandong Academy of Agricultural Sciences, Jinan, People's Republic of China
| | - Hongbin He
- College of Life Sciences, Shandong Normal University, Jinan, China
| | - Jiaqiang Wu
- Poultry Institute, Shandong Academy of Agricultural Sciences, Jinan, People's Republic of China.,Shandong Provincial Key Laboratory of Poultry Diseases Diagnosis and Immunology, Jinan, China.,Poultry Breeding Engineering Technology Center of Shandong Province, Jinan, China
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18
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Yu Z, Cheng K, Wang T, Ren Z, Wu J, He H, Gao Y. Two mutations in viral protein enhance the adaptation of waterfowl-origin H3N2 virus in murine model. Virus Res 2019; 269:197639. [PMID: 31173771 DOI: 10.1016/j.virusres.2019.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 04/17/2019] [Accepted: 06/02/2019] [Indexed: 01/27/2023]
Abstract
After serial passage of a waterfowl-origin H3N2 subtype avian influenza virus in BALB/c mice, we obtained H3N2 mouse-adapted variants and identified eight amino acid substitutions in five viral proteins in our previous study. Here, we analyze the key mutations determining viral pathogenicity in mammals. We found that both PB2-D701N mutation and M1-M192V mutation were implicated in the viral pathogenic phenotypic variation of H3N2 avian influenza virus in mice. Furthermore, we found that PB2-D701N could enhance viral replication in vitro and in vivo and expanded viral tissue tropism. Our data suggest that PB2-D701N and M1-M192V are the virulence markers of H3N2 avian influenza virus, and these markers can be used in the trans-species transmission surveillance for the H3N2 avian influenza virus.
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Affiliation(s)
- Zhijun Yu
- Institute of Poultry Science, Shandong Academy of Agricultural Sciences, Jinan, 250023, China.
| | - Kaihui Cheng
- Dairy Cattle Research Center, Shandong Academy of Agricultural Sciences, Jinan, 250132, China
| | - Tiecheng Wang
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Military Veterinary Research Institute, Academy of Military Medical Sciences, Changchun, 130122, China
| | - Zhiguang Ren
- Joint National Laboratory for Antibody Drug Engineering, Henan University, School of Basic Medical Sciences, Kaifeng, 475004, China
| | - Jiaqiang Wu
- Institute of Poultry Science, Shandong Academy of Agricultural Sciences, Jinan, 250023, China
| | - Hongbin He
- College of Life Sciences, Shandong Normal University, Jinan, 250014, China
| | - Yuwei Gao
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Military Veterinary Research Institute, Academy of Military Medical Sciences, Changchun, 130122, China.
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19
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Yu Z, Ren Z, Zhao Y, Cheng K, Sun W, Zhang X, Wu J, He H, Xia X, Gao Y. PB2 and hemagglutinin mutations confer a virulent phenotype on an H1N2 avian influenza virus in mice. Arch Virol 2019; 164:2023-2029. [PMID: 31111259 DOI: 10.1007/s00705-019-04283-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 04/15/2019] [Indexed: 11/30/2022]
Abstract
We previously obtained mouse-adapted variants of H1N2 avian influenza virus that contained PB2-L134H, PB2-I647L, PB2-D701N, HA-G228S, and M1-D231N mutations. Here, we analyzed the effects of these mutations on viral pathogenicity in a mammalian model. By evaluating the virulence of mouse-adapted H1N2 variants at different generations, we found that the PB2-D701N and HA-G228S mutations both contribute to the virulence of this virus in mammals. Furthermore, we found that the PB2-D701N and HA-G228S mutations both enhance the ability of the virus to replicate in vivo and in vitro and that the PB2-D701N substitution results in an expansion of viral tissue tropism. These results suggest that the PB2-D701N mutation and the HA-G228S mutation are the major mammalian determinants of H1N2 virus. These results help us to understand more about the mechanisms by which influenza viruses adapt to mammals, and monitoring of these mutations can be used in continuous influenza surveillance to assess the pandemic potential of avian influenza virus variants.
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Affiliation(s)
- Zhijun Yu
- Institute of Poultry Science, Shandong Academy of Agricultural Sciences, No. 1 Jiaoxiao road, Jinan, 250023, Shandong, China.
| | - Zhiguang Ren
- Joint National Laboratory for Antibody Drug Engineering, School of Basic Medical Sciences, Henan University, Kaifeng, 475004, China
| | - Yongkun Zhao
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Military Veterinary Research Institute, Academy of Military Medical Science of PLA, 666 Liuyingxi St., Changchun, 130122, People's Republic of China
| | - Kaihui Cheng
- Dairy Cattle Research Center, Shandong Academy of Agricultural Sciences, Jinan, 250132, China
| | - Weiyang Sun
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Military Veterinary Research Institute, Academy of Military Medical Science of PLA, 666 Liuyingxi St., Changchun, 130122, People's Republic of China
| | - Xinghai Zhang
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Military Veterinary Research Institute, Academy of Military Medical Science of PLA, 666 Liuyingxi St., Changchun, 130122, People's Republic of China
| | - Jiaqiang Wu
- Institute of Poultry Science, Shandong Academy of Agricultural Sciences, No. 1 Jiaoxiao road, Jinan, 250023, Shandong, China
| | - Hongbin He
- College of Life Sciences, Shandong Normal University, Jinan, 250014, China
| | - Xianzhu Xia
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Military Veterinary Research Institute, Academy of Military Medical Science of PLA, 666 Liuyingxi St., Changchun, 130122, People's Republic of China.
| | - Yuwei Gao
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Military Veterinary Research Institute, Academy of Military Medical Science of PLA, 666 Liuyingxi St., Changchun, 130122, People's Republic of China.
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20
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Zhao G, He H, Wang H. Use of a recombinase polymerase amplification commercial kit for rapid visual detection of Pasteurella multocida. BMC Vet Res 2019; 15:154. [PMID: 31101109 PMCID: PMC6525368 DOI: 10.1186/s12917-019-1889-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 04/29/2019] [Indexed: 12/16/2022] Open
Abstract
Background Pasteurella multocida (P. multocida) is a bacterium that causes bovine respiratory disease (BRD) and haemorrhagic septicaemia (HS) in cattle, buffaloes and bison. Rapid point-of-care diagnosis or regular testing of Pasteurellosis, therefore, could contribute greatly to early detection, and screening infected animal is important. Up to now, there are no published reports on the use of recombinase polymerase amplification (RPA) combined with a lateral flow dipstick (LFD) for P. multocida detection. Results This study proposes a promising isothermal detection method for P. multocida with the potential to be developed as an on-site test for Pasteurellosis. The method includes an RPA combined with LFD. First, the analytical sensitivity and specificity of P. multocida RPA-LFD were tested. The RPA-LFD, performed at 39 °C, successfully detected P. multocida DNA in 30 min, with a detection limit of up to 120 copies per reaction. Then, the practicability of RPA-LFD was analysed using 62 nasal swabs and 33 fresh lungs samples from 17 different dairy farms. Compared to real-time quantitative PCR (qPCR), the RPA-LFD assay yielded a clinical specificity of 95.15%, positive predictive value (PPV) of 95.15% and 0.958 kappa coefficient. Compared with the culture method, it achieved 100% sensitivity, 67.20% specificity and a 0.572 kappa coefficient. Conclusions These results combined with the simple conditions required for the performance of the RPA-LFD assay, have demonstrated the effectiveness and practicability of the method for development into a regular on-site protocol for the diagnosis of Pasteurellosis.
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Affiliation(s)
- Guimin Zhao
- Ruminant Disease Research Center, Key Laboratory of Animal Resistant Biology of Shandong, College of Life Science, Shandong Normal University, No.88 Wenhua East Road, Lixia District, Jinan, 250014, Shandong Province, China
| | - Hongbin He
- Ruminant Disease Research Center, Key Laboratory of Animal Resistant Biology of Shandong, College of Life Science, Shandong Normal University, No.88 Wenhua East Road, Lixia District, Jinan, 250014, Shandong Province, China.
| | - Hongmei Wang
- Ruminant Disease Research Center, Key Laboratory of Animal Resistant Biology of Shandong, College of Life Science, Shandong Normal University, No.88 Wenhua East Road, Lixia District, Jinan, 250014, Shandong Province, China.
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21
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Hou P, Zhao M, He W, He H, Wang H. Cellular microRNA bta-miR-2361 inhibits bovine herpesvirus 1 replication by directly targeting EGR1 gene. Vet Microbiol 2019; 233:174-183. [PMID: 31176405 DOI: 10.1016/j.vetmic.2019.05.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 04/30/2019] [Accepted: 05/03/2019] [Indexed: 01/20/2023]
Abstract
Bovine herpesvirus 1 (BHV-1) is an economically important pathogen of cattle and has led to significant consequences on the cattle industry worldwide. MicroRNAs (miRNAs) are a class of regulators that play critical roles in virus and host interaction. However, the roles of host miRNAs in BHV-1 infection remain largely unclear. In this study, a set of differentially expressed miRNAs by small RNA deep sequencing were analyzed in the Madin-Darby Bovine Kidney Cells (MDBK) infected with BHV-1 after 12 h, 24 h and 48 h post-infection compared to mock infection, and it was confirmed that bta-miR-2361 was significantly down-regulated. Moreover, bta-miR-2361 mimics transfection could inhibit BHV-1 replication. Combined with up-regulated genes from BHV-1-infected MDBK cells by deep RNA-sequencing and predicted by bioinformatics tools, early growth response 1 (EGR1) was putative target of bta-miR-2361. Furthermore, EGR1 was up-regulated during BHV-1 infection, and overexpression of EGR1 promoted BHV-1 replication whereas knockdown of EGR1 had the opposite effects. Subsequently, the target association between bta-miR-2361 and 3'UTR of EGR1 was further validated using a dual-luciferase reporter assay. In addition, overexpression of bta-miR-2361 resulted in decreased EGR1 mRNA and protein levels. Further mechanistic study showed that EGR1 stimulated BHV-1 UL46 promoter activity, but overexpression of bta-miR-2361 suppressed the production of UL46 gene. Collectively, this is the first study to reveal that bta-miR-2361 as a novel host factor regulates BHV-1 replication via directly targeting the EGR1 gene, which is a transcription factor that regulates viral UL46 gene of BHV-1. These results provide further insight into the study of BHV-1 pathogenesis.
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Affiliation(s)
- Peili Hou
- Ruminant Diseases Research Center, College of Life Sciences, Shandong Normal University, Jinan 250014, China.
| | - Min Zhao
- Ruminant Diseases Research Center, College of Life Sciences, Shandong Normal University, Jinan 250014, China.
| | - Wenqi He
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China.
| | - Hongbin He
- Ruminant Diseases Research Center, College of Life Sciences, Shandong Normal University, Jinan 250014, China.
| | - Hongmei Wang
- Ruminant Diseases Research Center, College of Life Sciences, Shandong Normal University, Jinan 250014, China.
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22
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Ma Q, Yao J, Yuan S, Liu H, Wei N, Zhang J, Shan W. Development of a lateral flow recombinase polymerase amplification assay for rapid and visual detection of Cryptococcus neoformans/C. gattii in cerebral spinal fluid. BMC Infect Dis 2019; 19:108. [PMID: 30717679 PMCID: PMC6360735 DOI: 10.1186/s12879-019-3744-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 01/25/2019] [Indexed: 12/21/2022] Open
Abstract
Background For definitive diagnosis of cryptococcal meningitis, Cryptococcus neoformans and/or C. gattii must be identified within cerebral spinal fluid from the patients. The traditional methods for detecting Cryptococcus spp. such as India ink staining and culture are not ideal. Although sensitive and specific enough, detection of cryptococcal antigen polysaccharide has a high dose hook effect. Therefore, the aim of this study was to introduce a new rapid and simple detection method of Cryptococcus neoformans and C. gattii in cerebral spinal fluid. Methods The lateral flow strips combined with recombinase polymerase amplification (LF-RPA) assay was constructed to detect the specific DNA sequences of C. neoformans and C. gattii. The detection limit was evaluated using serial dilutions of C. neoformans and C. gattii genomic DNA. The specificity was assessed by excessive amount of other pathogens genomic DNA. The optimal detection time and amplification temperature were also analyzed. The diagnostic parameters were first calculated using 114 clinical specimens and then compared with that of other diagnostic method. A brief analysis and comparison of different DNA extraction methods was discussed, too. Results The LF-RPA assay could detect 0.64 pg of genomic DNA of C. neoformans per reaction within 10 min and was highly specific for Cryptococcus spp.. The system could work well at a wide range of temperature from 25 to 45 °C. The overall sensitivity and specificity were 95.2 and 95.8% respectively. As amplification template for LF-RPA assay, both cell lysates and genomic DNA produce similar experimental results. Conclusions The LF-RPA system described here is shown to be a sensitive and specific method for the visible, rapid, and accurate detection of Cryptococcus spp. in cerebral spinal fluid and might be useful for clinical preliminary screening of cryptococcal meningitis.
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Affiliation(s)
- Qinglin Ma
- Institute of Maternity and Child Medical Research, Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, No.2004 Hongli Road, Shenzhen, 518028, Guangdong, China.,Clinical Laboratory, Shenzhen Third People's Hospital, No.29 Bulan Road, Shenzhen, 518112, Guangdong, China
| | - Jilong Yao
- Institute of Maternity and Child Medical Research, Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, No.2004 Hongli Road, Shenzhen, 518028, Guangdong, China
| | - Shixin Yuan
- Institute of Maternity and Child Medical Research, Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, No.2004 Hongli Road, Shenzhen, 518028, Guangdong, China
| | - Houming Liu
- Clinical Laboratory, Shenzhen Third People's Hospital, No.29 Bulan Road, Shenzhen, 518112, Guangdong, China
| | - Ning Wei
- Personnel Section, Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, No.2004 Hongli Road, Shenzhen, 518028, Guangdong, China.
| | - Jianming Zhang
- Institute of Maternity and Child Medical Research, Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, No.2004 Hongli Road, Shenzhen, 518028, Guangdong, China.
| | - Wanshui Shan
- Clinical Laboratory, Shenzhen Third People's Hospital, No.29 Bulan Road, Shenzhen, 518112, Guangdong, China.
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Ran J, Zhou J. Targeted inhibition of histone deacetylase 6 in inflammatory diseases. Thorac Cancer 2019; 10:405-412. [PMID: 30666796 PMCID: PMC6397899 DOI: 10.1111/1759-7714.12974] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 12/22/2018] [Accepted: 12/22/2018] [Indexed: 12/16/2022] Open
Abstract
Targeting epigenetic modification of gene expression represents a promising new approach under investigation for the treatment of inflammatory diseases. Accumulating evidence suggests that epigenetic mechanisms, such as histone modification, play a crucial role in a number of inflammatory diseases, including rheumatoid arthritis, asthma, and contact hypersensitivity. Consistent with this role, histone deacetylase (HDAC) inhibitors have shown efficacy in the treatment of inflammatory diseases. In particular, selective inhibitors of HDAC6, a cytoplasmic member of the HDAC family that contains two deacetylase domains, are under investigation as a potential treatment strategy for inflammatory diseases due to their ability to regulate inflammatory cells and cytokines. Here, we review recent findings highlighting the critical roles of HDAC6 in a variety of inflammatory diseases, and discuss the therapeutic potential of HDAC6 inhibitors in these settings.
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Affiliation(s)
- Jie Ran
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Institute of Biomedical Sciences, College of Life Sciences, Shandong Normal University, Jinan, China
| | - Jun Zhou
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Institute of Biomedical Sciences, College of Life Sciences, Shandong Normal University, Jinan, China
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24
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Yu Z, He H, Cheng K, Wu J, Gao Y, Chen W, Yuan X, Zhao Y. Genetic characterization of an H13N2 low pathogenic avian influenza virus isolated from gulls in China. Transbound Emerg Dis 2019; 66:1063-1066. [PMID: 30578616 DOI: 10.1111/tbed.13108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 12/09/2018] [Accepted: 12/14/2018] [Indexed: 11/30/2022]
Abstract
Low pathogenic avian influenza viruses circulate in wild birds but are occasionally transmitted to other species, including poultry, mammals and humans. To date, infections with low pathogenic avian influenza viruses of HA subtype 6, HA subtype 7, HA subtype 9 and HA subtype 10 among humans have been reported. However, the epidemiology, genetics and ecology of low pathogenic avian influenza viruses have not been fully understood thus far. Therefore, persistent surveillance of low pathogenic avian influenza virus infections in wild birds and other species is needed. Here, we found a low pathogenic avian influenza virus of the subtype H13N2 (abbreviated as WH42) in black-tailed gulls in China. All gene sequences of this H13N2 virus were determined and used for subsequent analysis. Phylogenetic analysis of the HA gene and NA gene indicated that WH42 was derived from the Eurasian lineage. We analysed the timing of the reassortment events and found that WH42 was a reassortant whose genes were transferred from avian influenza viruses circulating in Asia, Europe and North America. Additionally, WH42 possessed several molecular markers associated with mammalian virulence and mammalian transmissibility. Interestingly, we also found low but detectable haemagglutination inhibition antibodies against H13N2 low pathogenic avian influenza virus in serum samples collected from chickens. Taken together, our findings show that the H13 virus may have been introduced into poultry and that sustainable surveillance in gulls and poultry is required.
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Affiliation(s)
- Zhijun Yu
- Institute of Poultry Science, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Hongbin He
- College of Life Sciences, Shandong Normal University, Jinan, China
| | - Kaihui Cheng
- Dairy Cattle Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Jiaqiang Wu
- Institute of Poultry Science, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Yuwei Gao
- Military Veterinary Research Institute, Academy of Military Medical Sciences, Changchun, China
| | - Weijing Chen
- Institute of Poultry Science, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Xiaoyuan Yuan
- Institute of Poultry Science, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Yongkun Zhao
- Military Veterinary Research Institute, Academy of Military Medical Sciences, Changchun, China
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25
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Li J, Macdonald J, von Stetten F. Review: a comprehensive summary of a decade development of the recombinase polymerase amplification. Analyst 2019; 144:31-67. [DOI: 10.1039/c8an01621f] [Citation(s) in RCA: 240] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
RPA is a versatile complement or replacement of PCR, and now is stepping into practice.
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Affiliation(s)
- Jia Li
- Laboratory for MEMS Applications
- IMTEK – Department of Microsystems Engineering
- University of Freiburg
- 79110 Freiburg
- Germany
| | - Joanne Macdonald
- Inflammation and Healing Research Cluster
- Genecology Research Centre
- School of Science and Engineering
- University of the Sunshine Coast
- Australia
| | - Felix von Stetten
- Laboratory for MEMS Applications
- IMTEK – Department of Microsystems Engineering
- University of Freiburg
- 79110 Freiburg
- Germany
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26
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Zhao G, Hou P, Huan Y, He C, Wang H, He H. Development of a recombinase polymerase amplification combined with a lateral flow dipstick assay for rapid detection of the Mycoplasma bovis. BMC Vet Res 2018; 14:412. [PMID: 30572884 PMCID: PMC6302395 DOI: 10.1186/s12917-018-1703-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 11/20/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Mycoplasma bovis (M. bovis) is a major etiological agent of bovine mycoplasmosis around the world. Point-of-care testing in the field is lacking owing to the requirement for a simple, robust field applicable test that does not require professional laboratory equipment. The recombinase polymerase amplification (RPA) technique has become a promising isothermal DNA amplify assay for use in rapid and low-resource diagnostics. RESULTS Here, a method for specific detection of M. bovis DNA was established, which was RPA combined with lateral flow dipstick (LFD). First, the analytical specificity and sensitivity of the RPA primer and LF-probe sets were evaluated. The assay successfully detected M. bovis DNA in 30 min at 39 °C, with detection limit of 20 copies per reaction, which it was compared the real-time quantitative PCR (qPCR) assay. This method was specific because it did not detect a selection of other bacterial pathogens in cattle. Both qPCR and RPA-LFD assays were used to detect M. bovis 442 field samples from 42 different dairy farms in Shandong Province of China, also the established RPA-LFD assay obtained 99.00% sensitivity, 95.61% specificity, and 0.902 kappa coefficient compared with the qPCR. CONCLUSIONS To the author's knowledge, this is the first report using an RPA-FLD assay to visualise and detect M. bovis. Comparative analysis with qPCR indicates the potential of this assay for rapid diagnosis of bovine mycoplasmosis in resource limited settings.
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Affiliation(s)
- Guimin Zhao
- Key Laboratory of Animal Resistant Biology of Shandong, Ruminant Disease Research Center, College of Life Science Shandong Normal University, No.88 Wenhua East Road, Lixia District, Jinan, 250014, Shandong Province, China
| | - Peili Hou
- Key Laboratory of Animal Resistant Biology of Shandong, Ruminant Disease Research Center, College of Life Science Shandong Normal University, No.88 Wenhua East Road, Lixia District, Jinan, 250014, Shandong Province, China
| | - Yanjun Huan
- College of Animal Science and Technology, Qingdao Agricultural University, No.700 Changcheng Road, Chengyang District, Qingdao, 266109, Shandong Province, China
| | - Chengqiang He
- Key Laboratory of Animal Resistant Biology of Shandong, Ruminant Disease Research Center, College of Life Science Shandong Normal University, No.88 Wenhua East Road, Lixia District, Jinan, 250014, Shandong Province, China.
| | - Hongmei Wang
- Key Laboratory of Animal Resistant Biology of Shandong, Ruminant Disease Research Center, College of Life Science Shandong Normal University, No.88 Wenhua East Road, Lixia District, Jinan, 250014, Shandong Province, China.
| | - Hongbin He
- Key Laboratory of Animal Resistant Biology of Shandong, Ruminant Disease Research Center, College of Life Science Shandong Normal University, No.88 Wenhua East Road, Lixia District, Jinan, 250014, Shandong Province, China.
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Wang H, Hou P, Zhao G, Yu L, Gao YW, He H. Development and evaluation of serotype-specific recombinase polymerase amplification combined with lateral flow dipstick assays for the diagnosis of foot-and-mouth disease virus serotype A, O and Asia1. BMC Vet Res 2018; 14:359. [PMID: 30458768 PMCID: PMC6245561 DOI: 10.1186/s12917-018-1644-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 10/09/2018] [Indexed: 11/10/2022] Open
Abstract
Background Foot-and-mouth disease (FMD) caused by foot-and-mouth disease virus (FMDV) is one of the most highly infectious diseases in livestock, and leads to huge economic losses. Early diagnosis and rapid differentiation of FMDV serotype is therefore integral to the prevention and control of FMD. In this study, a series of serotype-specific reverse transcription recombinase polymerase amplification assays combined with lateral flow dipstick (RPA-LFD) were establish to differentiate FMDV serotypes A, O or Asia 1, respectively. Results The serotype-specific primers and probes of RPA-LFD were designed to target conserved regions of the FMDV VP1 gene sequence, and three primer and probe sets of serotype-specific RPA-LFD were selected for amplification of FMDV serotypes A, O or Asia 1, respectively. Following incubation at 38 °C for 20 min, the RPA amplification products could be visualized by LFD. Analytical sensitivity of the RPA assay was then determined with ten-fold serial dilutions of RNA of VP1 gene and the recombinant vector respectively containing VP1 gene from FMDV serotypes A, O or Asia1, the detection limits of these assays were 3 copies of plasmid DNA or 50 copies of viral RNA per reaction. Moreover, the specificity of the assay was assessed, and there was no cross reactions with other viruses leading to bovine vesicular lesions. Furthermore, 126 clinical samples were respectively detected with RPA-LFD and real-time PCR (rPCR), there was 98.41% concordance between the two assays, and two samples were positive by RPA-LFD but negative in rPCR, these were confirmed as FMDV-positive through viral isolation in BHK-21 cells. It showed that RPA-LFD assay was more sensitive than the rPCR method in this study. Conclusion The development of serotype-specific RPA-LFD assay provides a rapid, sensitive, and specific method for differentiation of FMDV serotype A, O or Asia1, respectively. It is possible that the serotype-specific RPA-LFD assay may be used as a integral protocol for field detection of FMDV.
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Affiliation(s)
- Hongmei Wang
- Ruminant Diseases Research Center, Key Laboratory of Animal Resistant Biology of Shandong, College of Life Sciences, Shandong Normal University, Jinan, 250014, China
| | - Peili Hou
- Ruminant Diseases Research Center, Key Laboratory of Animal Resistant Biology of Shandong, College of Life Sciences, Shandong Normal University, Jinan, 250014, China
| | - Guimin Zhao
- Ruminant Diseases Research Center, Key Laboratory of Animal Resistant Biology of Shandong, College of Life Sciences, Shandong Normal University, Jinan, 250014, China
| | - Li Yu
- Division of Livestock Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Harbin, 150001, China
| | - Yu-Wei Gao
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Military Veterinary Research Institute of Academy of Military Medical Sciences, Changchun, 130122, China.
| | - Hongbin He
- Ruminant Diseases Research Center, Key Laboratory of Animal Resistant Biology of Shandong, College of Life Sciences, Shandong Normal University, Jinan, 250014, China.
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Yu Z, Gao Y, He H, Zhao Y, Yuan X, Cheng K. Isolation and genetic characterization of H13N8 low pathogenic avian influenza virus from migratory birds in eastern China. Transbound Emerg Dis 2018; 66:588-591. [PMID: 30291732 DOI: 10.1111/tbed.13035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Revised: 09/16/2018] [Accepted: 09/30/2018] [Indexed: 11/30/2022]
Abstract
Low pathogenic avian influenza virus (LPAIV) is an important zoonotic pathogen. Migratory birds are the natural reservoir for all 16 haemagglutinin (HA) and nine neuraminidase (NA) subtypes of LPAIV. Surveillance of LPAIV in migratory waterfowl and poultry is important for animal and public health. An understanding of the ecology and epidemiology of LPAI viruses in their reservoirs is beneficial for routine surveillance projects. Here, we report the isolation of an H13N8 LPAIV from black-tailed gulls in eastern China. Full genome sequences of this isolate were determined. Genetic analysis of the HA and NA segments of this isolate showed that this H13N8 LPAIV was derived from the Eurasian lineage. Additionally, we speculate that this H13N8 LPAIV was a reassortant between the North American and Eurasian lineages. Interestingly, we identified amino acid motifs responsible for increased virulence or transmission of influenza viruses in mammals. We also found weak but measurable haemagglutination inhibition antibody titers against H13N8 virus in serum samples collected from chickens. These results suggest that continued surveillance for LPAI viruses in migratory birds and poultry is required.
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Affiliation(s)
- Zhijun Yu
- Institute of Poultry Science, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Yuwei Gao
- Military Veterinary Research Institute, Academy of Military Medical Sciences, Changchun, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Hongbin He
- College of Life Sciences, Shandong Normal University, Jinan, China
| | - Yongkun Zhao
- Military Veterinary Research Institute, Academy of Military Medical Sciences, Changchun, China
| | - Xiaoyuan Yuan
- Institute of Poultry Science, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Kaihui Cheng
- Dairy Cattle Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
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A lateral flow dipstick combined with reverse transcription recombinase polymerase amplification for rapid and visual detection of the bovine respirovirus 3. Mol Cell Probes 2018; 41:22-26. [PMID: 30138696 PMCID: PMC7126874 DOI: 10.1016/j.mcp.2018.08.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 08/15/2018] [Accepted: 08/19/2018] [Indexed: 11/23/2022]
Abstract
Bovine respirovirus 3 also known as Bovine parainfluenza virus type 3 (BPIV3) is one of the most important viral respiratory agents of both young and adult cattle. Rapid diagnosis could contribute greatly in containing epidemics and thus avoid economic losses. However, the lack of robust isothermal visual method poses difficulty. In this study, a novel isothermal assay for detecting BPIV3 was established. The method includes a lateral flow dipstick (LFD) assay combined with reverse transcription recombinase polymerase amplification (RT-RPA). First, the analytical sensitivity and specificity of BPIV3 LFD RT-RPA were tested. The LFD RT-RPA assay has a detection limit of up to 100 copies per reaction in 30 min at 38 °C. Then the performance of LFD RT-RPA was evaluated using 95 clinical samples. Compared to qPCR, the LFD RT-RPA assay showed a clinical sensitivity of 94.74%, a clinical specificity of 96.05% and 0.8734 kappa coefficient. These results have demonstrated the efficiency and effectiveness of the method to be developed into a point of care protocol for the diagnosis of BPIV3. A LFD RT-RPA assay for detection of BPIV3 was developed. The RPA-nfo primer and probe sets were highly specific to BPIV3. Primer and probe sets were highly sensitive, detecting up to 100 copies per reaction. Compared to qPCR, the LFD RT-RPA assay showed a clinical sensitivity of 94.74% and a clinical specificity of 96.05%.
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Wang HM, Zhao GM, Hou PL, Yu L, He CQ, He HB. Rapid detection of foot-and-mouth disease virus using reverse transcription recombinase polymerase amplification combined with a lateral flow dipstick. J Virol Methods 2018; 261:46-50. [PMID: 30059693 DOI: 10.1016/j.jviromet.2018.07.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 07/15/2018] [Accepted: 07/22/2018] [Indexed: 12/27/2022]
Abstract
Foot-and-mouth disease caused by foot-and-mouth disease virus (FMDV) is one of the most highly contagious diseases of domestic animals, and leads to enormous economic loss. Currently there are two main prevention and control strategies for the disease: eradication of the infected animals in FMDV free countries, and vaccination of the susceptible animals in countries with endemic FMDV infection. Early discovery and diagnosis of the source of infection is therefore integral to the containment of FMDV. In this study, a two-step reverse transcription recombinase polymerase amplification assay combined with lateral flow detection (RPA-LFD) was developed to detect FMDV. With incubation at 38 °C, a region of the 2B gene on the FMDV genome was successfully amplified within 20 min using specific primers and a probe. The amplified RPA product can be visualized on a lateral flow dipstick. The RPA-LFD assay was highly sensitive, detecting down to 10 copies of plasmid DNA. There was no cross-reactivity with other pathogens causing vesicular lesions. In addition, 143 clinical samples were used to compare RPA-LFD with real-time PCR, with 98.6% concordance between the assays. Therefore, the developed RPA-LFD assay provides a rapid, simple, highly promising approach to be used as point-of-care diagnostics in the field.
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Affiliation(s)
- Hong-Mei Wang
- Ruminant Diseases Research Center, Key Laboratory of Animal Resistant Biology of Shandong, College of Life Sciences, Shandong Normal University, Jinan 250014, China
| | - Gui-Min Zhao
- Ruminant Diseases Research Center, Key Laboratory of Animal Resistant Biology of Shandong, College of Life Sciences, Shandong Normal University, Jinan 250014, China
| | - Pei-Li Hou
- Ruminant Diseases Research Center, Key Laboratory of Animal Resistant Biology of Shandong, College of Life Sciences, Shandong Normal University, Jinan 250014, China
| | - Li Yu
- Division of Livestock Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Harbin 150001, China
| | - Cheng-Qiang He
- Ruminant Diseases Research Center, Key Laboratory of Animal Resistant Biology of Shandong, College of Life Sciences, Shandong Normal University, Jinan 250014, China.
| | - Hong-Bin He
- Ruminant Diseases Research Center, Key Laboratory of Animal Resistant Biology of Shandong, College of Life Sciences, Shandong Normal University, Jinan 250014, China.
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Tian AL, Elsheikha HM, Zhou DH, Wu YD, Chen MX, Wang M, Chen D, Zhang XC, Zhu XQ. A novel recombinase polymerase amplification (RPA) assay for the rapid isothermal detection of Neospora caninum in aborted bovine fetuses. Vet Parasitol 2018; 258:24-29. [PMID: 30105974 DOI: 10.1016/j.vetpar.2018.06.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 05/23/2018] [Accepted: 06/04/2018] [Indexed: 11/17/2022]
Abstract
The development of a method to rapidly diagnose Neospora caninum infection is highly desirable. Recombinase polymerase amplification (RPA), combined with lateral flow (LF) strips, is a novel approach to rapidly amplify and visualize DNA. We have developed a prototype LF-RPA assay, using primers and a probe that targeted a specific sequence in the N. caninum NC-5 gene. The N. caninum-specific LF-RPA assay was first tested on purified DNA from oocysts and amplified N. caninum DNA to detectable levels in 10 min, at a constant temperature and without the need for an expensive thermocycler. The designed RPA primers and probe displayed 100% specificity for detecting N. caninum without any cross-reaction with DNA from nine related protozoan spp. (eg Toxoplasma gondii, Sarcocystis gigantean, Sarcocystis zuoi, Hammondia hammondi, Hammondia heydorni, Eimeria cylindrica, Plasmodium falciparum, Theileria annulata and Babesia bigemina). Although, LF-RPA assay detected amounts as low as 50 fg of N. caninum DNA, it was nearly 5-fold less sensitive than previously published qPCR and nested PCR assays. We tested the diagnostic performance of the LF-RPA assay for the detection of N. caninum DNA in aborted bovine fetal tissue samples, and compared the results with those obtained from nested PCR. Out of the 75 samples examined, 18 (24%) and 17 (22.6%) tested positive using LF-RPA and nested PCR, respectively. Our results indicate that LF-RPA is a suitable assay for the rapid and reliable detection of N. caninum.
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Affiliation(s)
- Ai-Ling Tian
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China
| | - Hany M Elsheikha
- Faculty of Medicine and Health Sciences, School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
| | - Dong-Hui Zhou
- Key Laboratory of Fujian-Taiwan Animal Pathogen Biology, College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province 350002, PR China.
| | - Yao-Dong Wu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China
| | - Mu-Xin Chen
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai 200025, PR China
| | - Meng Wang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China
| | - Dan Chen
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China
| | - Xi-Chen Zhang
- College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, PR China
| | - Xing-Quan Zhu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China.
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Shahin K, Gustavo Ramirez-Paredes J, Harold G, Lopez-Jimena B, Adams A, Weidmann M. Development of a recombinase polymerase amplification assay for rapid detection of Francisella noatunensis subsp. orientalis. PLoS One 2018; 13:e0192979. [PMID: 29444148 PMCID: PMC5812721 DOI: 10.1371/journal.pone.0192979] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 02/01/2018] [Indexed: 11/18/2022] Open
Abstract
Francisella noatunensis subsp. orientalis (Fno) is the causative agent of piscine francisellosis in warm water fish including tilapia. The disease induces chronic granulomatous inflammation with high morbidity and can result in high mortality. Early and accurate detection of Fno is crucial to set appropriate outbreak control measures in tilapia farms. Laboratory detection of Fno mainly depends on bacterial culture and molecular techniques. Recombinase polymerase amplification (RPA) is a novel isothermal technology that has been widely used for the molecular diagnosis of various infectious diseases. In this study, a recombinase polymerase amplification (RPA) assay for rapid detection of Fno was developed and validated. The RPA reaction was performed at a constant temperature of 42°C for 20 min. The RPA assay was performed using a quantitative plasmid standard containing a unique Fno gene sequence. Validation of the assay was performed not only by using DNA from Fno, closely related Francisella species and other common bacterial pathogens in tilapia farms, but also by screening 78 Nile tilapia and 5 water samples. All results were compared with those obtained by previously established real-time qPCR. The developed RPA showed high specificity in detection of Fno with no cross-detection of either the closely related Francisella spp. or the other tested bacteria. The Fno-RPA performance was highly comparable to the published qPCR with detection limits at 15 and 11 DNA molecules detected, respectively. The RPA gave quicker results in approximately 6 min in contrast to the qPCR that needed about 90 min to reach the same detection limit, taking only 2.7–3 min to determine Fno in clinical samples. Moreover, RPA was more tolerant to reaction inhibitors than qPCR when tested with field samples. The fast reaction, simplicity, cost-effectiveness, sensitivity and specificity make the RPA an attractive diagnostic tool that will contribute to controlling the infection through prompt on-site detection of Fno.
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Affiliation(s)
- Khalid Shahin
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling, Scotland, United Kingdom
- Aquatic Animal Diseases Lab, Division of Aquaculture, National Institute of Oceanography and Fisheries, Suez, Egypt
- * E-mail:
| | - Jose Gustavo Ramirez-Paredes
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling, Scotland, United Kingdom
| | - Graham Harold
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling, Scotland, United Kingdom
| | - Benjamin Lopez-Jimena
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling, Scotland, United Kingdom
| | - Alexandra Adams
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling, Scotland, United Kingdom
| | - Manfred Weidmann
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling, Scotland, United Kingdom
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