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Ianevski A, Frøysa IT, Lysvand H, Calitz C, Smura T, Schjelderup Nilsen HJ, Høyer E, Afset JE, Sridhar A, Wolthers KC, Zusinaite E, Tenson T, Kurg R, Oksenych V, Galabov AS, Stoyanova A, Bjørås M, Kainov DE. The combination of pleconaril, rupintrivir, and remdesivir efficiently inhibits enterovirus infections in vitro, delaying the development of drug-resistant virus variants. Antiviral Res 2024; 224:105842. [PMID: 38417531 DOI: 10.1016/j.antiviral.2024.105842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/10/2024] [Accepted: 02/24/2024] [Indexed: 03/01/2024]
Abstract
Enteroviruses are a significant global health concern, causing a spectrum of diseases from the common cold to more severe conditions like hand-foot-and-mouth disease, meningitis, myocarditis, pancreatitis, and poliomyelitis. Current treatment options for these infections are limited, underscoring the urgent need for effective therapeutic strategies. To find better treatment option we analyzed toxicity and efficacy of 12 known broad-spectrum anti-enterovirals both individually and in combinations against different enteroviruses in vitro. We identified several novel, synergistic two-drug and three-drug combinations that demonstrated significant inhibition of enterovirus infections in vitro. Specifically, the triple-drug combination of pleconaril, rupintrivir, and remdesivir exhibited remarkable efficacy against echovirus (EV) 1, EV6, EV11, and coxsackievirus (CV) B5, in human lung epithelial A549 cells. This combination surpassed the effectiveness of single-agent or dual-drug treatments, as evidenced by its ability to protect A549 cells from EV1-induced cytotoxicity across seven passages. Additionally, this triple-drug cocktail showed potent antiviral activity against EV-A71 in human intestinal organoids. Thus, our findings highlight the therapeutic potential of the pleconaril-rupintrivir-remdesivir combination as a broad-spectrum treatment option against a range of enterovirus infections. The study also paves the way towards development of strategic antiviral drug combinations with virus family coverage and high-resistance barriers.
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Affiliation(s)
- Aleksandr Ianevski
- Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, 7028 Trondheim, Norway
| | - Irene Trøen Frøysa
- Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, 7028 Trondheim, Norway
| | - Hilde Lysvand
- Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, 7028 Trondheim, Norway
| | - Carlemi Calitz
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - Teemu Smura
- Department of Virology, University of Helsinki, 00014 Helsinki, Finland; HUS Diagnostic Center, Clinical Microbiology, Helsinki University Hospital, University of Helsinki, 00029 Helsinki, Finland
| | | | - Erling Høyer
- Department of Medical Microbiology, Clinic for Laboratory Medicine, St. Olavs Hospital, 7028 Trondheim, Norway
| | - Jan Egil Afset
- Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, 7028 Trondheim, Norway; Department of Medical Microbiology, Clinic for Laboratory Medicine, St. Olavs Hospital, 7028 Trondheim, Norway
| | - Adithya Sridhar
- OrganoVIR Labs, Dept of Pediatric Infectious Diseases, Emma Children's Hospital, Amsterdam University Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - Katja C Wolthers
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - Eva Zusinaite
- Institute of Technology, University of Tartu, 50411 Tartu, Estonia
| | - Tanel Tenson
- Institute of Technology, University of Tartu, 50411 Tartu, Estonia
| | - Reet Kurg
- Institute of Technology, University of Tartu, 50411 Tartu, Estonia
| | - Valentyn Oksenych
- Broegelmann Research Laboratory, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Angel S Galabov
- The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Adelina Stoyanova
- The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Magnar Bjørås
- Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, 7028 Trondheim, Norway; Department of Microbiology, Oslo University Hospital and University of Oslo, 0372 Oslo, Norway
| | - Denis E Kainov
- Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, 7028 Trondheim, Norway; Institute for Molecular Medicine Finland, University of Helsinki, 00014, Helsinki, Finland.
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Capendale PE, García-Rodríguez I, Ambikan AT, Mulder LA, Depla JA, Freeze E, Koen G, Calitz C, Sood V, Vieira de Sá R, Neogi U, Pajkrt D, Sridhar A, Wolthers KC. Parechovirus infection in human brain organoids: host innate inflammatory response and not neuro-infectivity correlates to neurologic disease. Nat Commun 2024; 15:2532. [PMID: 38514653 PMCID: PMC10958052 DOI: 10.1038/s41467-024-46634-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 02/29/2024] [Indexed: 03/23/2024] Open
Abstract
Picornaviruses are a leading cause of central nervous system (CNS) infections. While genotypes such as parechovirus A3 (PeV-A3) and echovirus 11 (E11) can elicit severe neurological disease, the highly prevalent PeV-A1 is not associated with CNS disease. Here, we expand our current understanding of these differences in PeV-A CNS disease using human brain organoids and clinical isolates of the two PeV-A genotypes. Our data indicate that PeV-A1 and A3 specific differences in neurological disease are not due to infectivity of CNS cells as both viruses productively infect brain organoids with a similar cell tropism. Proteomic analysis shows that PeV-A infection significantly alters the host cell metabolism. The inflammatory response following PeV-A3 (and E11 infection) is significantly more potent than that upon PeV-A1 infection. Collectively, our findings align with clinical observations and suggest a role for neuroinflammation, rather than viral replication, in PeV-A3 (and E11) infection.
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Affiliation(s)
- Pamela E Capendale
- OrganoVIR Labs, Emma Children's Hospital, Department of Pediatric Infectious Diseases, Amsterdam UMC, Academic Medical Center, Amsterdam Institute for Infection and Immunity, Amsterdam Institute for Reproduction and Development, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - Inés García-Rodríguez
- OrganoVIR Labs, Emma Children's Hospital, Department of Pediatric Infectious Diseases, Amsterdam UMC, Academic Medical Center, Amsterdam Institute for Infection and Immunity, Amsterdam Institute for Reproduction and Development, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - Anoop T Ambikan
- The Systems Virology Lab, Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institutet, ANA Futura, Campus Flemingsberg, Stockholm, Sweden
| | - Lance A Mulder
- OrganoVIR Labs, Emma Children's Hospital, Department of Pediatric Infectious Diseases, Amsterdam UMC, Academic Medical Center, Amsterdam Institute for Infection and Immunity, Amsterdam Institute for Reproduction and Development, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - Josse A Depla
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
- UniQure Biopharma B.V., Department of Research & Development, Paasheuvelweg 25A, Amsterdam, The Netherlands
| | - Eline Freeze
- OrganoVIR Labs, Emma Children's Hospital, Department of Pediatric Infectious Diseases, Amsterdam UMC, Academic Medical Center, Amsterdam Institute for Infection and Immunity, Amsterdam Institute for Reproduction and Development, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - Gerrit Koen
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - Carlemi Calitz
- OrganoVIR Labs, Emma Children's Hospital, Department of Pediatric Infectious Diseases, Amsterdam UMC, Academic Medical Center, Amsterdam Institute for Infection and Immunity, Amsterdam Institute for Reproduction and Development, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - Vikas Sood
- The Systems Virology Lab, Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institutet, ANA Futura, Campus Flemingsberg, Stockholm, Sweden
- Department of Biochemistry, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
| | - Renata Vieira de Sá
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
- The Systems Virology Lab, Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institutet, ANA Futura, Campus Flemingsberg, Stockholm, Sweden
| | - Ujjwal Neogi
- The Systems Virology Lab, Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institutet, ANA Futura, Campus Flemingsberg, Stockholm, Sweden
| | - Dasja Pajkrt
- OrganoVIR Labs, Emma Children's Hospital, Department of Pediatric Infectious Diseases, Amsterdam UMC, Academic Medical Center, Amsterdam Institute for Infection and Immunity, Amsterdam Institute for Reproduction and Development, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - Adithya Sridhar
- OrganoVIR Labs, Emma Children's Hospital, Department of Pediatric Infectious Diseases, Amsterdam UMC, Academic Medical Center, Amsterdam Institute for Infection and Immunity, Amsterdam Institute for Reproduction and Development, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
- Emma Center for Personalized Medicine, Amsterdam UMC, Amsterdam, The Netherlands
| | - Katja C Wolthers
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands.
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García-Rodríguez I, Moreni G, Capendale PE, Mulder L, Aknouch I, Vieira de Sá R, Johannesson N, Freeze E, van Eijk H, Koen G, Wolthers KC, Pajkrt D, Sridhar A, Calitz C. Assessment of the broad-spectrum host targeting antiviral efficacy of halofuginone hydrobromide in human airway, intestinal and brain organotypic models. Antiviral Res 2024; 222:105798. [PMID: 38190972 DOI: 10.1016/j.antiviral.2024.105798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 01/02/2024] [Accepted: 01/04/2024] [Indexed: 01/10/2024]
Abstract
Halofuginone hydrobromide has shown potent antiviral efficacy against a variety of viruses such as SARS-CoV-2, dengue, or chikungunya virus, and has, therefore, been hypothesized to have broad-spectrum antiviral activity. In this paper, we tested this broad-spectrum antiviral activity of Halofuginone hydrobomide against viruses from different families (Picornaviridae, Herpesviridae, Orthomyxoviridae, Coronaviridae, and Flaviviridae). To this end, we used relevant human models of the airway and intestinal epithelium and regionalized neural organoids. Halofuginone hydrobomide showed antiviral activity against SARS-CoV-2 in the airway epithelium with no toxicity at equivalent concentrations used in human clinical trials but not against any of the other tested viruses.
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Affiliation(s)
- Inés García-Rodríguez
- Emma Children's Hospital, Department of Pediatric Infectious Diseases, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, Amsterdam Institute for Reproduction and Development, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands; OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands
| | - Giulia Moreni
- Emma Children's Hospital, Department of Pediatric Infectious Diseases, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, Amsterdam Institute for Reproduction and Development, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands; OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands
| | - Pamela E Capendale
- Emma Children's Hospital, Department of Pediatric Infectious Diseases, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, Amsterdam Institute for Reproduction and Development, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands; OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands
| | - Lance Mulder
- Emma Children's Hospital, Department of Pediatric Infectious Diseases, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, Amsterdam Institute for Reproduction and Development, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands; OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands
| | - Ikrame Aknouch
- Emma Children's Hospital, Department of Pediatric Infectious Diseases, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, Amsterdam Institute for Reproduction and Development, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands; OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands; Viroclinics Xplore, Schaijk, the Netherlands
| | - Renata Vieira de Sá
- Emma Children's Hospital, Department of Pediatric Infectious Diseases, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, Amsterdam Institute for Reproduction and Development, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands; OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands; UniQure Biopharma B.V., Department of Research & Development, Paasheuvelweg 25A, 1105, BE, Amsterdam, the Netherlands
| | - Nina Johannesson
- Emma Children's Hospital, Department of Pediatric Infectious Diseases, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, Amsterdam Institute for Reproduction and Development, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands; OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands
| | - Eline Freeze
- Emma Children's Hospital, Department of Pediatric Infectious Diseases, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, Amsterdam Institute for Reproduction and Development, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands; OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands
| | - Hetty van Eijk
- Emma Children's Hospital, Department of Pediatric Infectious Diseases, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, Amsterdam Institute for Reproduction and Development, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands; OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands
| | - Gerrit Koen
- Emma Children's Hospital, Department of Pediatric Infectious Diseases, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, Amsterdam Institute for Reproduction and Development, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands; OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands
| | - Katja C Wolthers
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands
| | - Dasja Pajkrt
- Emma Children's Hospital, Department of Pediatric Infectious Diseases, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, Amsterdam Institute for Reproduction and Development, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands
| | - Adithya Sridhar
- Emma Children's Hospital, Department of Pediatric Infectious Diseases, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, Amsterdam Institute for Reproduction and Development, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands; OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands
| | - Carlemi Calitz
- Emma Children's Hospital, Department of Pediatric Infectious Diseases, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, Amsterdam Institute for Reproduction and Development, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands; OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, 1100, AZ, Amsterdam, the Netherlands.
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Iordanishvili S, Marjanidze D, Sergi C, Sridhar A, Gubeladze E, Gogichashvili S, Deisadze V, Kldiashvili E. Silver nanoparticles enhanced enzyme-linked immunosorbent assay (ELISA) detection of cancer testis antigens (CTAs). Eur Rev Med Pharmacol Sci 2024; 28:1417-1422. [PMID: 38436175 DOI: 10.26355/eurrev_202402_35463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
OBJECTIVE The Enzyme-Linked Immunosorbent Assay (ELISA) has been a cornerstone technique in laboratory medicine for over 55 years, relying on the specific binding of antibodies to antigens. ELISA's widespread use stems from its ability to detect low concentrations, its specificity, reproducibility, and potential for high-throughput screening. However, its sensitivity has limitations, prompting the exploration of innovative methods to improve the limit of detection (LOD). Nanoparticles provide a promising platform for enhancing ELISA sensitivity. Due to their high surface-to-volume ratio, they offer increased binding sites for capture elements and reporting tags, leading to amplified analytical signals. Recent studies have demonstrated improved sensitivity in ELISA through nanoparticle application, yielding faster detection times and enhanced sensitivities. This study investigates the potential of 50 nm citrate-capped silver nanoparticles to enhance ELISA's performance in quantifying cancer testis antigens (CTAs). PATIENTS AND METHODS In our study, we used the Human NY-ESO-1 ELISA kit (for research purposes) to determine the concentration of CTAs in randomly selected samples from healthy (n=89) and oncological (n=80) subjects, aged 18-75. We employed 50 nm citrate-capped silver nanoparticles (AGCB50-1M, BioPure Silver Nanoparticles - bare citrate, nano-Composix, San Diego, CA, USA). ELISA reactions followed the manufacturer's instructions, and data processing aligned with the same guidelines. Absorbance (OD) measurements occurred at 450 nm, influencing nanoparticle selection. Each ELISA well contained 5 ml of nanoparticles' stock solution with specified concentrations. CTAs concentrations were derived from the standard curve through CurveExpert Basic software. Statistical analysis was performed using SPSS v. 27 software, with p-values indicating significance if <0.03. The study adhered to Helsinki Declaration principles and received ethical approval. Participants provided informed written consent. RESULTS The increased concentration values of CTAs for healthy individuals and cancer patients were determined in the case of the application of silver nanoparticles. CONCLUSIONS The usage of nanoparticles can enhance the sensitivity of the ELISA method and positively influence its specific detection limit.
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Moreni G, van Eijk H, Koen G, Johannesson N, Calitz C, Benschop K, Cremer J, Pajkrt D, Sridhar A, Wolthers K. Non-Polio Enterovirus C Replicate in Both Airway and Intestine Organotypic Cultures. Viruses 2023; 15:1823. [PMID: 37766230 PMCID: PMC10537321 DOI: 10.3390/v15091823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 08/22/2023] [Accepted: 08/25/2023] [Indexed: 09/29/2023] Open
Abstract
Non-polio enteroviruses (EV) belonging to species C, which are highly prevalent in Africa, mainly among children, are poorly characterized, and their pathogenesis is mostly unknown as they are difficult to culture. In this study, human airway and intestinal organotypic models were used to investigate tissue and cellular tropism of three EV-C genotypes, EV-C99, CVA-13, and CVA-20. Clinical isolates were obtained within the two passages of culture on Caco2 cells, and all three viruses were replicated in both the human airway and intestinal organotypic cultures. We did not observe differences in viral replication between fetal and adult tissue that could potentially explain the preferential infection of infants by EV-C genotypes. Infection of the airway and the intestinal cultures indicates that they both can serve as entry sites for non-polio EV-C. Ciliated airway cells and enterocytes are the target of infection for all three viruses, as well as enteroendocrine cells for EV-C99.
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Affiliation(s)
- Giulia Moreni
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Location AMC, Amsterdam Institute for Infection and Immunity, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (H.v.E.); (G.K.); (N.J.); (C.C.); (A.S.); (K.W.)
- OrganoVIR Labs, Department of Pediatric Infectious Diseases, Emma Children’s Hospital, Amsterdam UMC, Location AMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands;
| | - Hetty van Eijk
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Location AMC, Amsterdam Institute for Infection and Immunity, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (H.v.E.); (G.K.); (N.J.); (C.C.); (A.S.); (K.W.)
| | - Gerrit Koen
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Location AMC, Amsterdam Institute for Infection and Immunity, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (H.v.E.); (G.K.); (N.J.); (C.C.); (A.S.); (K.W.)
| | - Nina Johannesson
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Location AMC, Amsterdam Institute for Infection and Immunity, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (H.v.E.); (G.K.); (N.J.); (C.C.); (A.S.); (K.W.)
- OrganoVIR Labs, Department of Pediatric Infectious Diseases, Emma Children’s Hospital, Amsterdam UMC, Location AMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands;
| | - Carlemi Calitz
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Location AMC, Amsterdam Institute for Infection and Immunity, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (H.v.E.); (G.K.); (N.J.); (C.C.); (A.S.); (K.W.)
- OrganoVIR Labs, Department of Pediatric Infectious Diseases, Emma Children’s Hospital, Amsterdam UMC, Location AMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands;
| | - Kimberley Benschop
- National Institute for Public Health and Environment, RIVM, 3721 MA Bilthoven, The Netherlands; (K.B.); (J.C.)
| | - Jeroen Cremer
- National Institute for Public Health and Environment, RIVM, 3721 MA Bilthoven, The Netherlands; (K.B.); (J.C.)
| | - Dasja Pajkrt
- OrganoVIR Labs, Department of Pediatric Infectious Diseases, Emma Children’s Hospital, Amsterdam UMC, Location AMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands;
| | - Adithya Sridhar
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Location AMC, Amsterdam Institute for Infection and Immunity, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (H.v.E.); (G.K.); (N.J.); (C.C.); (A.S.); (K.W.)
- OrganoVIR Labs, Department of Pediatric Infectious Diseases, Emma Children’s Hospital, Amsterdam UMC, Location AMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands;
| | - Katja Wolthers
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Location AMC, Amsterdam Institute for Infection and Immunity, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (H.v.E.); (G.K.); (N.J.); (C.C.); (A.S.); (K.W.)
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6
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Mulder LA, Depla JA, Sridhar A, Wolthers K, Pajkrt D, Vieira de Sá R. A beginner's guide on the use of brain organoids for neuroscientists: a systematic review. Stem Cell Res Ther 2023; 14:87. [PMID: 37061699 PMCID: PMC10105545 DOI: 10.1186/s13287-023-03302-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 03/27/2023] [Indexed: 04/17/2023] Open
Abstract
BACKGROUND The first human brain organoid protocol was presented in the beginning of the previous decade, and since then, the field witnessed the development of many new brain region-specific models, and subsequent protocol adaptations and modifications. The vast amount of data available on brain organoid technology may be overwhelming for scientists new to the field and consequently decrease its accessibility. Here, we aimed at providing a practical guide for new researchers in the field by systematically reviewing human brain organoid publications. METHODS Articles published between 2010 and 2020 were selected and categorised for brain organoid applications. Those describing neurodevelopmental studies or protocols for novel organoid models were further analysed for culture duration of the brain organoids, protocol comparisons of key aspects of organoid generation, and performed functional characterisation assays. We then summarised the approaches taken for different models and analysed the application of small molecules and growth factors used to achieve organoid regionalisation. Finally, we analysed articles for organoid cell type compositions, the reported time points per cell type, and for immunofluorescence markers used to characterise different cell types. RESULTS Calcium imaging and patch clamp analysis were the most frequently used neuronal activity assays in brain organoids. Neural activity was shown in all analysed models, yet network activity was age, model, and assay dependent. Induction of dorsal forebrain organoids was primarily achieved through combined (dual) SMAD and Wnt signalling inhibition. Ventral forebrain organoid induction was performed with dual SMAD and Wnt signalling inhibition, together with additional activation of the Shh pathway. Cerebral organoids and dorsal forebrain model presented the most cell types between days 35 and 60. At 84 days, dorsal forebrain organoids contain astrocytes and potentially oligodendrocytes. Immunofluorescence analysis showed cell type-specific application of non-exclusive markers for multiple cell types. CONCLUSIONS We provide an easily accessible overview of human brain organoid cultures, which may help those working with brain organoids to define their choice of model, culture time, functional assay, differentiation, and characterisation strategies.
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Affiliation(s)
- Lance A Mulder
- Department of Paediatric Infectious Diseases, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands.
- Department Medical Microbiology, OrganoVIR Labs, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands.
- Amsterdam Institute for Infection and Immunity, Infectious Diseases, Amsterdam, the Netherlands.
| | - Josse A Depla
- Department of Paediatric Infectious Diseases, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands
- Department Medical Microbiology, OrganoVIR Labs, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Institute for Infection and Immunity, Infectious Diseases, Amsterdam, the Netherlands
- uniQure Biopharma B.V., Amsterdam, The Netherlands
| | - Adithya Sridhar
- Department of Paediatric Infectious Diseases, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands
- Department Medical Microbiology, OrganoVIR Labs, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Institute for Infection and Immunity, Infectious Diseases, Amsterdam, the Netherlands
| | - Katja Wolthers
- Department Medical Microbiology, OrganoVIR Labs, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Institute for Infection and Immunity, Infectious Diseases, Amsterdam, the Netherlands
| | - Dasja Pajkrt
- Department of Paediatric Infectious Diseases, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands
- Department Medical Microbiology, OrganoVIR Labs, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Institute for Infection and Immunity, Infectious Diseases, Amsterdam, the Netherlands
| | - Renata Vieira de Sá
- Department Medical Microbiology, OrganoVIR Labs, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Institute for Infection and Immunity, Infectious Diseases, Amsterdam, the Netherlands
- uniQure Biopharma B.V., Amsterdam, The Netherlands
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7
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Sridhar A, Khan D, Flatt PR, Irwin N, Moffett RC. PYY (3-36) protects against high fat feeding induced changes of pancreatic islet and intestinal hormone content and morphometry. Biochim Biophys Acta Gen Subj 2023; 1867:130359. [PMID: 37001706 DOI: 10.1016/j.bbagen.2023.130359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/16/2023] [Accepted: 03/23/2023] [Indexed: 03/31/2023]
Abstract
BACKGROUND Prolonged high fat feeding negatively impacts pancreatic and intestinal morphology. In this regard, direct effects of PYY(3-36) on intestinal cell and pancreatic islet morphometry are yet to be fully explored in the setting of obesity. METHODS We examined the influence of 21-days twice daily treatment with PYY(3-36) on these parameters in mice fed a high fat diet (HFD). RESULTS PYY(3-36) treatment decreased food intake, body weight and circulating glucose in HFD mice. In terms of intestinal morphology, crypt depth was restored to control levels by PYY(3-36), with an additional enlargement of villi length. PYY(3-36) also reversed HFD-induced decreases of ileal PYY, and especially GLP-1, content. HFD increased numbers of PYY and GIP positive ileal cells, with PYY(3-36) fully reversing the effect on PYY cell detection. There were no obvious differences in the overall number of GLP-1 positive ileal cells in all mice, barring PYY(3-36) marginally decreasing GLP-1 villi cell immunoreactivity. Within pancreatic islets, PYY(3-36) significantly decreased alpha-cell area, whilst islet, beta-, PYY- and delta-cell areas remained unchanged. However, PYY(3-36) increased the percentage of beta-cells while also reducing percentage alpha-cell area. This was related to PYY(3-36)-induced reductions of beta-cell proliferation and apoptosis frequencies. Co-localisation of islet PYY with glucagon or somatostatin was elevated by PYY(3-36), with GLP-1/glucagon co-visualisation increased when compared to lean controls. CONCLUSION PYY(3-36) exerts protective effects on pancreatic and intestinal morphology in HFD mice linked to elevated ileal GLP-1 content. GENERAL SIGNIFICANCE These observations highlight mechanisms linked to the metabolic and weight reducing benefits of PYY(3-36).
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Affiliation(s)
- A Sridhar
- Biomedical Sciences Research Institute, School of Biomedical Sciences, Ulster University, Coleraine, N. Ireland, UK
| | - D Khan
- Biomedical Sciences Research Institute, School of Biomedical Sciences, Ulster University, Coleraine, N. Ireland, UK
| | - P R Flatt
- Biomedical Sciences Research Institute, School of Biomedical Sciences, Ulster University, Coleraine, N. Ireland, UK
| | - N Irwin
- Biomedical Sciences Research Institute, School of Biomedical Sciences, Ulster University, Coleraine, N. Ireland, UK.
| | - R C Moffett
- Biomedical Sciences Research Institute, School of Biomedical Sciences, Ulster University, Coleraine, N. Ireland, UK
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8
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Sridhar A, Balakrishnan A, Jacob MM, Sillanpää M, Dayanandan N. Global impact of COVID-19 on agriculture: role of sustainable agriculture and digital farming. Environ Sci Pollut Res Int 2023; 30:42509-42525. [PMID: 35258730 PMCID: PMC8902491 DOI: 10.1007/s11356-022-19358-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 02/18/2022] [Indexed: 04/13/2023]
Abstract
The rise and spread of the coronavirus pandemic (COVID-19) has created an imbalance in all sectors worldwide, massively disrupting the global economy. Social distancing, quarantine regulations, and strict travel restrictions have led to a major reduction in the workforce and loss of jobs across all industrial sectors. One of the sectors completely exposed was the agriculture and food sector. The initiation of a nationwide lockdown by the government resulted in the shutdown of industries globally impacting the overall supply chain from farmer to consumer. The need of the hour is to propose effective solutions which can serve the dual purpose of market growth as well as customer satisfaction. This paper reviews the impact of COVID-19 on the agro-food system and its economy stressing critical factors like food production, demand, price hikes, security, and supply chain resilience. To conserve natural resources and meet the sustainable development goals (SDG), importance has been given to adopting sustainable agricultural practices with a prime focus on techniques like urban agriculture, crop rotation, hydroponics, and family farming. Possible advancements like the use of digital tools, mainly artificial intelligence, machine learning, deep learning, and block-chain technology, in the agro-food sector have been discussed as they could be a promising tool to develop a self-reliant society. This work would be a perfect platform to understand the growing impact of the pandemic as well as supporting cost-effective solutions for a green ecosystem.
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Affiliation(s)
- Adithya Sridhar
- Department of Chemical Engineering, College of Engineering and Technology, SRM Institute of Science & Technology, Kattankulathur 603 203, Chengalpattu, Tamil Nadu, India
| | - Akash Balakrishnan
- Department of Chemical Engineering, National Institute of Technology, Rourkela, Odisha, 769 008, India
| | - Meenu Mariam Jacob
- Department of Chemical Engineering, College of Engineering and Technology, SRM Institute of Science & Technology, Kattankulathur 603 203, Chengalpattu, Tamil Nadu, India
| | - Mika Sillanpää
- Department of Chemical Engineering, School of Mining, Metallurgy, and Chemical Engineering, University of Johannesburg, P.O. Box 17011, Doornfontein, 2028, South Africa
| | - Nanditha Dayanandan
- Department of Chemical Engineering, College of Engineering and Technology, SRM Institute of Science & Technology, Kattankulathur 603 203, Chengalpattu, Tamil Nadu, India
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9
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Ostrowski M, Sridhar A, Yohannan B, Idowu M. Outcomes of patients admitted to the hospital with disseminated intravascular coagulation with de-novo malignancies: a single institution experience. Am J Med Sci 2023. [DOI: 10.1016/s0002-9629(23)00571-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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10
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Khetrapal P, Catto J, Ambler G, Williams N, Al-Hammouri T, Khan M, Thurairaja R, Nair R, Nathan S, Sridhar A, Ahmed I, Charlesworth P, Blick C, Cumberbatch M, Hussain S, Kotwal S, Bains P, Rowe E, Koupparis A, Noon A, Vasdev N, Hanchanale V, Mcgrath J, Kelly J. Comparing objective recovery of activity levels using wearable devices in open vs. intracorporeal robotic cystectomy: An analysis of the secondary outcomes of the iROC randomized trial. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00208-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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11
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Aknouch I, García-Rodríguez I, Giugliano FP, Calitz C, Koen G, van Eijk H, Johannessson N, Rebers S, Brouwer L, Muncan V, Stittelaar KJ, Pajkrt D, Wolthers KC, Sridhar A. Amino acid variation at VP1-145 of enterovirus A71 determines the viral infectivity and receptor usage in a primary human intestinal model. Front Microbiol 2023; 14:1045587. [PMID: 37138595 PMCID: PMC10149690 DOI: 10.3389/fmicb.2023.1045587] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 03/16/2023] [Indexed: 05/05/2023] Open
Abstract
Enterovirus A71 (EV-A71) can elicit a wide variety of human diseases such as hand, foot, and mouth disease and severe or fatal neurological complications. It is not clearly understood what determines the virulence and fitness of EV-A71. It has been observed that amino acid changes in the receptor binding protein, VP1, resulting in viral binding to heparan sulfate proteoglycans (HSPGs) may be important for the ability of EV-A71 to infect neuronal tissue. In this study, we identified that the presence of glutamine, as opposed to glutamic acid, at VP1-145 is key for viral infection in a 2D human fetal intestinal model, consistent with previous findings in an airway organoid model. Moreover, pre-treatment of EV-A71 particles with low molecular weight heparin to block HSPG-binding significantly reduced the infectivity of two clinical EV-A71 isolates and viral mutants carrying glutamine at VP1-145. Our data indicates that mutations in VP1 leading to HSPG-binding enhances viral replication in the human gut. These mutations resulting in increased production of viral particles at the primary replication site could lead to a higher risk of subsequent neuroinfection. Importance With the near eradication of polio worldwide, polio-like illness (as is increasingly caused by EV-A71 infections) is of emerging concern. EV-A71 is indeed the most neurotropic enterovirus that poses a major threat globally to public health and specifically in infants and young children. Our findings will contribute to the understanding of the virulence and the pathogenicity of this virus. Further, our data also supports the identification of potential therapeutic targets against severe EV-A71 infection especially among infants and young children. Furthermore, our work highlights the key role of HSPG-binding mutations in the disease outcome of EV-A71. Additionally, EV-A71 is not able to infect the gut (the primary replication site in humans) in traditionally used animal models. Thus, our research highlights the need for human-based models to study human viral infections.Graphical Abstract.
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Affiliation(s)
- Ikrame Aknouch
- Department of Medical Microbiology, OrganoVIR Labs, Amsterdam UMC, Location Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
- Department of Pediatric Infectious Diseases, Emma Children’s Hospital, Amsterdam UMC, Location Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
- Viroclinics Xplore, Schaijk, Netherlands
- *Correspondence: Ikrame Aknouch,
| | - Inés García-Rodríguez
- Department of Medical Microbiology, OrganoVIR Labs, Amsterdam UMC, Location Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
- Department of Pediatric Infectious Diseases, Emma Children’s Hospital, Amsterdam UMC, Location Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Francesca Paola Giugliano
- Tytgat Institute for Intestinal and Liver Research, Amsterdam Gastroenterology Endocrinology and Metabolism, Amsterdam UMC, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Carlemi Calitz
- Department of Medical Microbiology, OrganoVIR Labs, Amsterdam UMC, Location Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
- Department of Pediatric Infectious Diseases, Emma Children’s Hospital, Amsterdam UMC, Location Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Gerrit Koen
- Department of Medical Microbiology, OrganoVIR Labs, Amsterdam UMC, Location Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Hetty van Eijk
- Department of Medical Microbiology, OrganoVIR Labs, Amsterdam UMC, Location Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Nina Johannessson
- Department of Medical Microbiology, OrganoVIR Labs, Amsterdam UMC, Location Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
- Department of Pediatric Infectious Diseases, Emma Children’s Hospital, Amsterdam UMC, Location Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Sjoerd Rebers
- Department of Medical Microbiology, OrganoVIR Labs, Amsterdam UMC, Location Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Lieke Brouwer
- Department of Medical Microbiology, OrganoVIR Labs, Amsterdam UMC, Location Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
- Department of Pediatric Infectious Diseases, Emma Children’s Hospital, Amsterdam UMC, Location Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Vanesa Muncan
- Tytgat Institute for Intestinal and Liver Research, Amsterdam Gastroenterology Endocrinology and Metabolism, Amsterdam UMC, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Koert J. Stittelaar
- Department of Epidemiology, Bioinformatics and Animal Models, Wageningen Bioveterinary Research, Wageningen University, Wageningen, Netherlands
| | - Dasja Pajkrt
- Department of Pediatric Infectious Diseases, Emma Children’s Hospital, Amsterdam UMC, Location Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Katja C. Wolthers
- Department of Medical Microbiology, OrganoVIR Labs, Amsterdam UMC, Location Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Adithya Sridhar
- Department of Medical Microbiology, OrganoVIR Labs, Amsterdam UMC, Location Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
- Department of Pediatric Infectious Diseases, Emma Children’s Hospital, Amsterdam UMC, Location Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
- Adithya Sridhar,
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12
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Wilkinson M, Keehn RJ, Linke A, You Y, Gao Y, Alemu K, Correas A, Rosen B, Kohli J, Wagner L, Sridhar A, Marinkovic K, Müller RA. fMRI BOLD and MEG theta power reflect complementary aspects of activity during lexicosemantic decision in adolescents with ASD. Neuroimage Rep 2022; 2:100134. [PMID: 36438080 PMCID: PMC9683354 DOI: 10.1016/j.ynirp.2022.100134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Neuroimaging studies of autism spectrum disorder (ASD) have been predominantly unimodal. While many fMRI studies have reported atypical activity patterns for diverse tasks, the MEG literature in ASD remains comparatively small. Our group recently reported atypically increased event-related theta power in individuals with ASD during lexicosemantic processing. The current multimodal study examined the relationship between fMRI BOLD signal and anatomically-constrained MEG (aMEG) theta power. Thirty-three adolescents with ASD and 23 typically developing (TD) peers took part in both fMRI and MEG scans, during which they distinguished between standard words (SW), animal words (AW), and pseudowords (PW). Regions-of-interest (ROIs) were derived based on task effects detected in BOLD signal and aMEG theta power. BOLD signal and theta power were extracted for each ROI and word condition. Compared to TD participants, increased theta power in the ASD group was found across several time windows and regions including left fusiform and inferior frontal, as well as right angular and anterior cingulate gyri, whereas BOLD signal was significantly increased in the ASD group only in right anterior cingulate gyrus. No significant correlations were observed between BOLD signal and theta power. Findings suggest that the common interpretation of increases in BOLD signal and theta power as 'activation' require careful differentiation, as these reflect largely distinct aspects of regional brain activity. Some group differences in dynamic neural processing detected with aMEG that are likely relevant for lexical processing may be obscured by the hemodynamic signal source and low temporal resolution of fMRI.
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Affiliation(s)
- M. Wilkinson
- San Diego State University/University of California San Diego Joint Doctoral Program in Clinical Psychology, San Diego, CA, United States,Brain Development Imaging Laboratories, Department of Psychology, San Diego State University, San Diego, CA, United States
| | - R.J. Jao Keehn
- Brain Development Imaging Laboratories, Department of Psychology, San Diego State University, San Diego, CA, United States
| | - A.C. Linke
- Brain Development Imaging Laboratories, Department of Psychology, San Diego State University, San Diego, CA, United States
| | - Y. You
- Spatiotemporal Brain Imaging Laboratory, Department of Psychology, San Diego State University, San Diego, CA, United States
| | - Y. Gao
- San Diego State University/University of California San Diego Joint Doctoral Program in Clinical Psychology, San Diego, CA, United States,Brain Development Imaging Laboratories, Department of Psychology, San Diego State University, San Diego, CA, United States
| | - K. Alemu
- Brain Development Imaging Laboratories, Department of Psychology, San Diego State University, San Diego, CA, United States
| | - A. Correas
- Spatiotemporal Brain Imaging Laboratory, Department of Psychology, San Diego State University, San Diego, CA, United States
| | - B.Q. Rosen
- Spatiotemporal Brain Imaging Laboratory, Department of Psychology, San Diego State University, San Diego, CA, United States
| | - J.S. Kohli
- San Diego State University/University of California San Diego Joint Doctoral Program in Clinical Psychology, San Diego, CA, United States,Brain Development Imaging Laboratories, Department of Psychology, San Diego State University, San Diego, CA, United States
| | - L. Wagner
- Spatiotemporal Brain Imaging Laboratory, Department of Psychology, San Diego State University, San Diego, CA, United States
| | - A. Sridhar
- Brain Development Imaging Laboratories, Department of Psychology, San Diego State University, San Diego, CA, United States
| | - K. Marinkovic
- San Diego State University/University of California San Diego Joint Doctoral Program in Clinical Psychology, San Diego, CA, United States,Spatiotemporal Brain Imaging Laboratory, Department of Psychology, San Diego State University, San Diego, CA, United States,Radiology Department, University of California at San Diego, CA, United States
| | - R.-A. Müller
- San Diego State University/University of California San Diego Joint Doctoral Program in Clinical Psychology, San Diego, CA, United States,Brain Development Imaging Laboratories, Department of Psychology, San Diego State University, San Diego, CA, United States,Corresponding author. San Diego State University, 6363 Alvarado Ct., Suite 103, San Diego, CA 92120, United States. (R.-A. Müller)
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13
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Sridhar A, Depla JA, Mulder LA, Karelehto E, Brouwer L, Kruiswijk L, Vieira de Sá R, Meijer A, Evers MM, van Kuppeveld FJM, Pajkrt D, Wolthers KC. Enterovirus D68 Infection in Human Primary Airway and Brain Organoids: No Additional Role for Heparan Sulfate Binding for Neurotropism. Microbiol Spectr 2022; 10:e0169422. [PMID: 36154279 PMCID: PMC9603061 DOI: 10.1128/spectrum.01694-22] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 09/09/2022] [Indexed: 12/31/2022] Open
Abstract
Enterovirus D68 (EV-D68) is an RNA virus that can cause outbreaks of acute flaccid paralysis (AFP), a polio-like disease. Before 2010, EV-D68 was a rare pathogen associated with mild respiratory symptoms, but the recent EV-D68 related increase in severe respiratory illness and outbreaks of AFP is not yet understood. An explanation for the rise in severe disease is that it may be due to changes in the viral genome resulting in neurotropism. In this regard, in addition to sialic acid, binding to heparan sulfate proteoglycans (HSPGs) has been identified as a feature for viral entry of some EV-D68 strains in cell lines. Studies in human primary organotypic cultures that recapitulate human physiology will address the relevance of these HSPG-binding mutations for EV-D68 infection in vivo. Therefore, in this work, we studied the replication and neurotropism of previously determined sialic acid-dependent and HSPG-dependent strains using primary human airway epithelial (HAE) cultures and induced human pluripotent stem cell (iPSC)-derived brain organoids. All three strains (B2/2042, B2/947, and A1/1348) used in this study infected HAE cultures and human brain organoids (shown for the first time). Receptor-blocking experiments in both cultures confirm that B2/2042 infection is solely dependent on sialic acid, while B2/947 and A1/1348 (HSPG to a lesser extent) binds to sialic acid and HSPG for cell entry. Our data suggest that HSPG-binding can be used by EV-D68 for entry in human physiological models but offers no advantage for EV-D68 infection of brain cells. IMPORTANCE Recent outbreaks of enterovirus D68, a nonpolio enterovirus, is associated with a serious neurological condition in young children, acute flaccid myelitis (AFM). As there is no antiviral treatment or vaccine available for EV-D68 it is important to better understand how EV-D68 causes AFM and why only recent outbreaks are associated with AFM. We investigated if a change in receptor usage of EV-D68 increases the virulence of EV-D68 in the airway or the central nervous system and thus could explain the increase in AFM cases. We studied this using physiologically relevant human airway epithelium and cerebral organoid cultures that are physiologically relevant human models. Our data suggest that heparan sulfate proteoglycans can be used by EV-D68 as an additional entry receptor in human physiological models but offers no advantage for EV-D68 infection of brain cells, and our data show the potential of these 46 innovative models for virology.
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Affiliation(s)
- Adithya Sridhar
- Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Department of Medical Microbiology, OrganoVIR Labs, Amsterdam, The Netherlands
- Amsterdam UMC, University of Amsterdam, Vrije Universiteit, Emma Children’s Hospital Department of Pediatric Infectious Diseases, Amsterdam, The Netherlands
| | - Josse A. Depla
- Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Department of Medical Microbiology, OrganoVIR Labs, Amsterdam, The Netherlands
- Amsterdam UMC, University of Amsterdam, Vrije Universiteit, Emma Children’s Hospital Department of Pediatric Infectious Diseases, Amsterdam, The Netherlands
- uniQure Biopharma B.V., Amsterdam, The Netherlands
| | - Lance A. Mulder
- Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Department of Medical Microbiology, OrganoVIR Labs, Amsterdam, The Netherlands
- Amsterdam UMC, University of Amsterdam, Vrije Universiteit, Emma Children’s Hospital Department of Pediatric Infectious Diseases, Amsterdam, The Netherlands
| | - Eveliina Karelehto
- Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Department of Medical Microbiology, OrganoVIR Labs, Amsterdam, The Netherlands
- Amsterdam UMC, University of Amsterdam, Vrije Universiteit, Emma Children’s Hospital Department of Pediatric Infectious Diseases, Amsterdam, The Netherlands
| | - Lieke Brouwer
- Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Department of Medical Microbiology, OrganoVIR Labs, Amsterdam, The Netherlands
- Amsterdam UMC, University of Amsterdam, Vrije Universiteit, Emma Children’s Hospital Department of Pediatric Infectious Diseases, Amsterdam, The Netherlands
| | - Leonie Kruiswijk
- Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Department of Medical Microbiology, OrganoVIR Labs, Amsterdam, The Netherlands
| | | | - Adam Meijer
- National Institute for Public Health and Environment, Centre for Infectious Diseases Research and Laboratory Surveillance, Bilthoven, The Netherlands
| | | | - Frank J. M. van Kuppeveld
- Virology Division, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Dasja Pajkrt
- Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Department of Medical Microbiology, OrganoVIR Labs, Amsterdam, The Netherlands
- Amsterdam UMC, University of Amsterdam, Vrije Universiteit, Emma Children’s Hospital Department of Pediatric Infectious Diseases, Amsterdam, The Netherlands
| | - Katja C. Wolthers
- Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Department of Medical Microbiology, OrganoVIR Labs, Amsterdam, The Netherlands
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14
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Collins J, Khetrapal P, Sridhar A, Hung A, Ghazi A, Slack M, Bishop S, Wang Y, Maier-Hein L, Anvari M, Nakawala H, Garcia P, Jarc A, Bano S, Nathan A, Percy E, Burke J, Stoyanov D, Kelly J. Digital transformation of surgical services with a focus on patient wearables. EUR UROL SUPPL 2022. [DOI: 10.1016/s2666-1683(22)02189-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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15
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Aknouch I, Sridhar A, Freeze E, Giugliano FP, van Keulen BJ, Romijn M, Calitz C, García-Rodríguez I, Mulder L, Wildenberg ME, Muncan V, van Gils MJ, van Goudoever JB, Stittelaar KJ, Wolthers KC, Pajkrt D. Human milk inhibits some enveloped virus infections, including SARS-CoV-2, in an intestinal model. Life Sci Alliance 2022; 5:e202201432. [PMID: 35926873 PMCID: PMC9354649 DOI: 10.26508/lsa.202201432] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 07/13/2022] [Accepted: 07/14/2022] [Indexed: 11/24/2022] Open
Abstract
Human milk is important for antimicrobial defense in infants and has well demonstrated antiviral activity. We evaluated the protective ability of human milk against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in a human fetal intestinal cell culture model. We found that, in this model, human milk blocks SARS-CoV-2 replication, irrespective of the presence of SARS-CoV-2 spike-specific antibodies. Complete inhibition of both enveloped Middle East respiratory syndrome coronavirus and human respiratory syncytial virus infections was also observed, whereas no inhibition of non-enveloped enterovirus A71 infection was seen. Transcriptome analysis after 24 h of the intestinal monolayers treated with human milk showed large transcriptomic changes from human milk treatment, and subsequent analysis suggested that <i>ATP1A1</i> down-regulation by milk might be of importance. Inhibition of ATP1A1 blocked SARS-CoV-2 infection in our intestinal model, whereas no effect on EV-A71 infection was seen. Our data indicate that human milk has potent antiviral activity against particular (enveloped) viruses by potentially blocking the ATP1A1-mediated endocytic process.
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Affiliation(s)
- Ikrame Aknouch
- Department of Medical Microbiology, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, OrganoVIR Labs, Amsterdam, The Netherlands
- Department of Pediatric Infectious Diseases, Amsterdam UMC, University of Amsterdam, Vrije Universiteit, Emma Children's Hospital, Amsterdam, The Netherlands
- Viroclinics Xplore, Schaijk, The Netherlands
| | - Adithya Sridhar
- Department of Medical Microbiology, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, OrganoVIR Labs, Amsterdam, The Netherlands
- Department of Pediatric Infectious Diseases, Amsterdam UMC, University of Amsterdam, Vrije Universiteit, Emma Children's Hospital, Amsterdam, The Netherlands
| | - Eline Freeze
- Department of Medical Microbiology, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, OrganoVIR Labs, Amsterdam, The Netherlands
- Department of Pediatric Infectious Diseases, Amsterdam UMC, University of Amsterdam, Vrije Universiteit, Emma Children's Hospital, Amsterdam, The Netherlands
| | - Francesca Paola Giugliano
- Amsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology Endocrinology and Metabolism, Tytgat Institute for Intestinal and Liver Research, Amsterdam, The Netherlands
| | - Britt J van Keulen
- Department of Pediatrics, Amsterdam UMC, University of Amsterdam, Vrije Universiteit Emma Children's Hospital, Dutch National Human Milk Bank, Amsterdam, The Netherlands
| | - Michelle Romijn
- Department of Pediatrics, Amsterdam UMC, University of Amsterdam, Vrije Universiteit Emma Children's Hospital, Dutch National Human Milk Bank, Amsterdam, The Netherlands
| | - Carlemi Calitz
- Department of Medical Microbiology, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, OrganoVIR Labs, Amsterdam, The Netherlands
- Department of Pediatric Infectious Diseases, Amsterdam UMC, University of Amsterdam, Vrije Universiteit, Emma Children's Hospital, Amsterdam, The Netherlands
| | - Inés García-Rodríguez
- Department of Medical Microbiology, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, OrganoVIR Labs, Amsterdam, The Netherlands
- Department of Pediatric Infectious Diseases, Amsterdam UMC, University of Amsterdam, Vrije Universiteit, Emma Children's Hospital, Amsterdam, The Netherlands
| | - Lance Mulder
- Department of Medical Microbiology, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, OrganoVIR Labs, Amsterdam, The Netherlands
- Department of Pediatric Infectious Diseases, Amsterdam UMC, University of Amsterdam, Vrije Universiteit, Emma Children's Hospital, Amsterdam, The Netherlands
| | - Manon E Wildenberg
- Amsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology Endocrinology and Metabolism, Tytgat Institute for Intestinal and Liver Research, Amsterdam, The Netherlands
| | - Vanesa Muncan
- Amsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology Endocrinology and Metabolism, Tytgat Institute for Intestinal and Liver Research, Amsterdam, The Netherlands
| | - Marit J van Gils
- Department of Medical Microbiology, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Amsterdam, The Netherlands
| | - Johannes B van Goudoever
- Department of Pediatrics, Amsterdam UMC, University of Amsterdam, Vrije Universiteit Emma Children's Hospital, Dutch National Human Milk Bank, Amsterdam, The Netherlands
| | - Koert J Stittelaar
- Department of Epidemiology, Bioinformatics and Animals Models, Wageningen University, Wageningen Bioveterinary Research, Wageningen, The Netherlands
| | - Katja C Wolthers
- Department of Medical Microbiology, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, OrganoVIR Labs, Amsterdam, The Netherlands
| | - Dasja Pajkrt
- Department of Pediatric Infectious Diseases, Amsterdam UMC, University of Amsterdam, Vrije Universiteit, Emma Children's Hospital, Amsterdam, The Netherlands
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16
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Sridhar A, Vaishampayan V, Senthil Kumar P, Ponnuchamy M, Kapoor A. Extraction techniques in food industry: Insights into process parameters and their optimization. Food Chem Toxicol 2022; 166:113207. [PMID: 35688271 DOI: 10.1016/j.fct.2022.113207] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/26/2022] [Accepted: 06/03/2022] [Indexed: 10/18/2022]
Abstract
This review presents critical evaluation of the key parameters that affect the extraction of targeted components, giving due consideration to safety and environmental aspects. The crucial aspects of the extraction technologies along with protocols and process parameters for designing unit operations have been emphasized. The parameters like solvent usage, substrate type, concentration, particle size, temperature, quality and storage of extract as well as stability of extraction have been elaborately discussed. The process optimization using mathematical and computational modeling highlighting information and communication technologies have been given importance aiming for a green and sustainable industry level scaleup. The findings indicate that the extraction processes vary significantly depending on the category of food and its structure. There is no single extraction method or universal set of process conditions identified for extracting all value-added products from respective sources. A comprehensive understanding of process parameters and their optimization as well as synergistic combination of multiple extraction processes can aid in enhancement of the overall extraction efficiency. Future efforts must be directed toward the design of integrated unit operations that cause minimal harm to the environment along with investigations on economic feasibility to ensure sustainable extraction systems.
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Affiliation(s)
- Adithya Sridhar
- School of Food Science and Nutrition, Faculty of Environment, The University of Leeds, Leeds, LS2 9JT, United Kingdom
| | - Vijay Vaishampayan
- Department of Chemical Engineering, Indian Institute of Technology, Ropar, Rupnagar, Punjab, 140001, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Department of Biotechnology Engineering and Food Technology, Chandigarh University, Mohali, 140413, India.
| | - Muthamilselvi Ponnuchamy
- Department of Chemical Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India
| | - Ashish Kapoor
- Department of Chemical Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India.
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17
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Stroulios G, Brown T, Moreni G, Kondro D, Dei A, Eaves A, Louis S, Hou J, Chang W, Pajkrt D, Wolthers KC, Sridhar A, Simmini S. Apical-out airway organoids as a platform for studying viral infections and screening for antiviral drugs. Sci Rep 2022; 12:7673. [PMID: 35538146 PMCID: PMC9089294 DOI: 10.1038/s41598-022-11700-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 04/25/2022] [Indexed: 11/09/2022] Open
Abstract
Airway organoids are polarized 3D epithelial structures that recapitulate the organization and many of the key functions of the in vivo tissue. They present an attractive model that can overcome some of the limitations of traditional 2D and Air–Liquid Interface (ALI) models, yet the limited accessibility of the organoids’ apical side has hindered their applications in studies focusing on host–pathogen interactions. Here, we describe a scalable, fast and efficient way to generate airway organoids with the apical side externally exposed. These apical-out airway organoids are generated in an Extracellular Matrix (ECM)-free environment from 2D-expanded bronchial epithelial cells and differentiated in suspension to develop uniformly-sized organoid cultures with robust ciliogenesis. Differentiated apical-out airway organoids are susceptible to infection with common respiratory viruses and show varying responses upon treatment with antivirals. In addition to the ease of apical accessibility, these apical-out airway organoids offer an alternative in vitro model to study host–pathogen interactions in higher throughput than the traditional air–liquid interface model.
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Affiliation(s)
| | - Tyler Brown
- STEMCELL Technologies Inc., Vancouver, BC, Canada
| | - Giulia Moreni
- Department of Medical Microbiology, OrganoVIR Labs, Amsterdam UMC Location University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands.,Department of Pediatric Infectious Diseases, Emma Children's Hospital, Amsterdam UMC Location University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands.,Amsterdam Institute for Infection and Immunity, Infectious Diseases, Amsterdam, The Netherlands
| | | | | | - Allen Eaves
- STEMCELL Technologies UK Ltd., Cambridge, UK.,STEMCELL Technologies Inc., Vancouver, BC, Canada.,Terry Fox Laboratory, BC Cancer, Vancouver, BC, Canada
| | - Sharon Louis
- STEMCELL Technologies Inc., Vancouver, BC, Canada
| | - Juan Hou
- STEMCELL Technologies China Co. Ltd., Shanghai, China
| | - Wing Chang
- STEMCELL Technologies UK Ltd., Cambridge, UK
| | - Dasja Pajkrt
- Department of Pediatric Infectious Diseases, Emma Children's Hospital, Amsterdam UMC Location University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands.,Amsterdam Institute for Infection and Immunity, Infectious Diseases, Amsterdam, The Netherlands
| | - Katja C Wolthers
- Department of Medical Microbiology, OrganoVIR Labs, Amsterdam UMC Location University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands.,Amsterdam Institute for Infection and Immunity, Infectious Diseases, Amsterdam, The Netherlands
| | - Adithya Sridhar
- Department of Medical Microbiology, OrganoVIR Labs, Amsterdam UMC Location University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands.,Department of Pediatric Infectious Diseases, Emma Children's Hospital, Amsterdam UMC Location University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands.,Amsterdam Institute for Infection and Immunity, Infectious Diseases, Amsterdam, The Netherlands
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18
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Depla JA, Mulder LA, de Sá RV, Wartel M, Sridhar A, Evers MM, Wolthers KC, Pajkrt D. Human Brain Organoids as Models for Central Nervous System Viral Infection. Viruses 2022; 14:v14030634. [PMID: 35337041 PMCID: PMC8948955 DOI: 10.3390/v14030634] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/12/2022] [Accepted: 03/15/2022] [Indexed: 02/06/2023] Open
Abstract
Pathogenesis of viral infections of the central nervous system (CNS) is poorly understood, and this is partly due to the limitations of currently used preclinical models. Brain organoid models can overcome some of these limitations, as they are generated from human derived stem cells, differentiated in three dimensions (3D), and can mimic human neurodevelopmental characteristics. Therefore, brain organoids have been increasingly used as brain models in research on various viruses, such as Zika virus, severe acute respiratory syndrome coronavirus 2, human cytomegalovirus, and herpes simplex virus. Brain organoids allow for the study of viral tropism, the effect of infection on organoid function, size, and cytoarchitecture, as well as innate immune response; therefore, they provide valuable insight into the pathogenesis of neurotropic viral infections and testing of antivirals in a physiological model. In this review, we summarize the results of studies on viral CNS infection in brain organoids, and we demonstrate the broad application and benefits of using a human 3D model in virology research. At the same time, we describe the limitations of the studies in brain organoids, such as the heterogeneity in organoid generation protocols and age at infection, which result in differences in results between studies, as well as the lack of microglia and a blood brain barrier.
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Affiliation(s)
- Josse A. Depla
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (L.A.M.); (A.S.); (K.C.W.); (D.P.)
- Department of Pediatric Infectious Diseases, Emma Children’s Hospital, Amsterdam UMC Location Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
- UniQure Biopharma B.V., Department of Research & Development, Paasheuvelweg 25A, 1105 BE Amsterdam, The Netherlands; (R.V.d.S.); (M.W.); (M.M.E.)
- Correspondence:
| | - Lance A. Mulder
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (L.A.M.); (A.S.); (K.C.W.); (D.P.)
- Department of Pediatric Infectious Diseases, Emma Children’s Hospital, Amsterdam UMC Location Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Renata Vieira de Sá
- UniQure Biopharma B.V., Department of Research & Development, Paasheuvelweg 25A, 1105 BE Amsterdam, The Netherlands; (R.V.d.S.); (M.W.); (M.M.E.)
| | - Morgane Wartel
- UniQure Biopharma B.V., Department of Research & Development, Paasheuvelweg 25A, 1105 BE Amsterdam, The Netherlands; (R.V.d.S.); (M.W.); (M.M.E.)
| | - Adithya Sridhar
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (L.A.M.); (A.S.); (K.C.W.); (D.P.)
| | - Melvin M. Evers
- UniQure Biopharma B.V., Department of Research & Development, Paasheuvelweg 25A, 1105 BE Amsterdam, The Netherlands; (R.V.d.S.); (M.W.); (M.M.E.)
| | - Katja C. Wolthers
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (L.A.M.); (A.S.); (K.C.W.); (D.P.)
| | - Dasja Pajkrt
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (L.A.M.); (A.S.); (K.C.W.); (D.P.)
- Department of Pediatric Infectious Diseases, Emma Children’s Hospital, Amsterdam UMC Location Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
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19
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Keerthiga G, Sridhar A. Batch extraction kinetics and total phenolic content estimation of Syzygium Cumini.L bark. Chem Ind 2022. [DOI: 10.1080/00194506.2022.2046512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- G. Keerthiga
- Department of Chemical Engineering, SRM Institute of Science & Technology, Kattankulathur, India
| | - Adithya Sridhar
- Department of Chemical Engineering, SRM Institute of Science & Technology, Kattankulathur, India
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20
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Napoe G, Sridhar A, Luchristt D, Ridgeway B, Ellington D, Sung V, Ninivaggio C, Harvie H, Santiago-lastra Y, Mazloomdoost D, Gantz M, Zyczynski H. Clinical and procedure characteristics of women electing surgical management for recurrent prolapse after sacrospinous hysteropexy with mesh graft. Am J Obstet Gynecol 2022. [DOI: 10.1016/j.ajog.2021.12.095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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21
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Loufopoulos I, Kapriniotis K, Kennedy C, Huq S, Reid T, Sridhar A. 248 Urethral Self-Insertion of a USB Cable as Sexual Experimentation: A Case Report. Br J Surg 2022. [DOI: 10.1093/bjs/znac039.162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Introduction
The insertion of a foreign body in the urethra is an uncommon urological emergency. A wide variety of inserted objects have been described, presenting either asymptomatically or with lower abdominal discomfort and lower urinary tract symptoms. Sexual experimentation and gratification as well as mental disorders are considered the main underlying causes. The aim of this report is to present the case of a USB wire self-insertion and its challenging urological management.
Case Presentation
A 15-year-old male patient presented to his local Accident and Emergency department with gross haematuria following self-insertion of the knotted cable of a USB wire into his urethra in the context of sexual experimentation. Endoscopic approach via rigid cystoscopy and optical urethrotomy was not effective. A suprapubic catheter was inserted, and the patient was urgently transferred to our hospital for tertiary management.
Following radiological assessment to confirm the position of the wire, a longitudinal peno-scrotal incision over the palpable foreign body was made. Urethrotomy revealed the knotted cable in the proximal aspect of the penile urethra, which was cut and removed. Urethra was subsequently closed over a urethral catheter. Postoperative recovery was uneventful, and patient was discharged home with oral antibiotics. Urethral catheter was removed following normal fluoroscopic assessment of the urethra two weeks later.
Conclusions
The management of a foreign urethral body can be challenging and usually requires tertiary expertise to achieve optimal outcomes. Poor initial management could potentially lead to devastating long-term complications such as urethral strictures and fistulas.
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Affiliation(s)
- I. Loufopoulos
- University College London Hospitals, London, United Kingdom
| | - K. Kapriniotis
- University College London Hospitals, London, United Kingdom
| | - C. Kennedy
- University College London Hospitals, London, United Kingdom
| | - S. Huq
- University College London Hospitals, London, United Kingdom
| | - T. Reid
- University College London Hospitals, London, United Kingdom
| | - A. Sridhar
- University College London Hospitals, London, United Kingdom
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22
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Sridhar A, Ponnuchamy M, Kapoor A, Prabhakar S. Valorization of food waste as adsorbents for toxic dye removal from contaminated waters: A review. J Hazard Mater 2022; 424:127432. [PMID: 34688000 DOI: 10.1016/j.jhazmat.2021.127432] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 09/09/2021] [Accepted: 10/02/2021] [Indexed: 05/07/2023]
Abstract
Industrial contaminants such as dyes and intermediates are released into water bodies, making the water unfit for human use. At the same time large amounts of food wastes accumulate near the work places, residential complexes etc. polluting the air due to putrefaction. The need of the hour lies in finding innovative solutions for dye removal from wastewater streams. In this context, the article emphasizes adoption or conversion of food waste materials, an ecological nuisance, as adsorbents for the removal of dyes from wastewaters. Adsorption, being a well-established technique, the review critically examines the specific potential of food waste constituents as dye adsorbents. The efficacy of food waste-based adsorbents is examined, besides addressing the possible adsorption mechanisms and the factors affecting phenomenon such as pH, temperature, contact time, adsorbent dosage, particle size, and ionic strength. Integration of information and communication technology approaches with adsorption isotherms and kinetic models are emphasized to bring out their role in improving overall modeling performance. Additionally, the reusability of adsorbents has been highlighted for effective substrate utilization. The review makes an attempt to stress the valorization of food waste materials to remove dyes from contaminated waters thereby ensuring long-term sustainability.
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Affiliation(s)
- Adithya Sridhar
- School of Food Science and Nutrition, Faculty of Environment, The University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Muthamilselvi Ponnuchamy
- Department of Chemical Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603 203, India
| | - Ashish Kapoor
- Department of Chemical Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603 203, India.
| | - Sivaraman Prabhakar
- Department of Chemical Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603 203, India
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23
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Asif A, Nathan A, Patel S, Georgi M, Hang M, Mullins W, Fricker M, Ng A, Ghosh A, Francis N, Collins J, Sridhar A. Virtual classroom proficiency-based progression for robotic surgery training (VROBOT): A prospective, cross-over, effectiveness study. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00116-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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24
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Nathan A, Ng A, Mitra A, Davda R, Sooriakumaran P, Patel S, Fricker M, Kelly J, Shaw G, Rajan P, Sridhar A, Nathan S, Payne H,. Comparative effectiveness analysis of oncological and functional outcomes after salvage radical treatment with surgery or radiotherapy following primary focal or whole-gland ablative therapy for localised prostate cancer. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)01040-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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25
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Sridhar A, Kannan D, Kapoor A, Prabhakar S. Extraction and detection methods of microplastics in food and marine systems: A critical review. Chemosphere 2022; 286:131653. [PMID: 34346338 DOI: 10.1016/j.chemosphere.2021.131653] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 06/27/2021] [Accepted: 07/21/2021] [Indexed: 05/25/2023]
Abstract
The ubiquitous presence of microplastics as contaminants in the ecosystem has become a matter of environmental concern gaining considerable attention in the research community as well as public arena. Lack of efficient collection and improper management of plastic have resulted in the enormous amounts of plastic wastes landing into the marine systems with oceans being the ultimate sink. Due to non-biodegradability, these plastics break down into smaller fragments over a period of time leading to consumption by aquatic species, threatening marine life. In the recent years, a wide range of food products has also been contaminated with microplastics directly affecting human health. This review focuses on the separation and identification technologies for extraction and detection of microplastics in food and marine ecosystems. Efficient technologies like floatation, membrane separation, chemical treatment, enzymatic treatment, and other miscellaneous techniques have been discussed considering their merits and demerits. Additionally, identification technologies like optical detection, scanning electron microscopy, Fourier transform infrared spectroscopy, Raman spectroscopy, thermo-analytical methods, and hyperspectral imaging have been emphasized for the detection of microplastic particles. The emerging techniques like enzymatic digestion combined with hyperspectral imaging could be a possible way for obtaining higher separation efficiency and characterization with minimal harm to food sample. This article narrows the gap for choosing a standard separation technology for microplastic detection in food matrices keeping in mind the composition, particle size, shape, data visualization techniques and cost.
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Affiliation(s)
- Adithya Sridhar
- Department of Chemical Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India.
| | - Deepa Kannan
- Department of Chemical Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India.
| | - Ashish Kapoor
- Department of Chemical Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India.
| | - Sivaraman Prabhakar
- Department of Chemical Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India.
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26
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Ganesh KS, Sridhar A, Vishali S. Utilization of fruit and vegetable waste to produce value-added products: Conventional utilization and emerging opportunities-A review. Chemosphere 2022; 287:132221. [PMID: 34560492 DOI: 10.1016/j.chemosphere.2021.132221] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 08/04/2021] [Accepted: 09/07/2021] [Indexed: 06/13/2023]
Abstract
Fruit and vegetables are one of the most consumed commodities globally, accounting for more than 42% of total food wastage. These vegetal foods can be consumed raw, processed, or taken as an addition to other food items. The continuous rise in population, in addition to technological advancements, has led to an imbalance in demand supply, resulting in increased food wastage globally. Although source reduction and recycling have shown promising results, more evaluations concerning economics and environmental impacts need to be given importance. The need of the hour lies in finding a possible method towards effective utilization for fruit and vegetable waste to generate value-added products which are more eco-friendly, cheaper, and sustainable. Thus, this article attempts to focus on the conventional and emerging opportunities of fruit and vegetable waste to generate value-added products. Conventional utilization, namely briquetting, waste to energy conversion, enzymatic degradation, and adsorption, as well as emerging opportunities in the areas of nutraceuticals, packaging, flavoring agents, and waste induced nanoparticles, have been emphasized. Additionally, recommendations and future perspectives towards better utilization of vegetal waste have been given importance. This review aims to narrow down the path towards evaluating the most techno-economic and efficient waste management technique for fruits and vegetable valorization, which can be promoted in the long term.
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Affiliation(s)
- K Selva Ganesh
- Department of Chemical Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603 203, India
| | - Adithya Sridhar
- Department of Chemical Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603 203, India
| | - S Vishali
- Department of Chemical Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603 203, India.
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27
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García-Rodríguez I, van Eijk H, Koen G, Pajkrt D, Sridhar A, Wolthers KC. Parechovirus A Infection of the Intestinal Epithelium: Differences Between Genotypes A1 and A3. Front Cell Infect Microbiol 2021; 11:740662. [PMID: 34790587 PMCID: PMC8591172 DOI: 10.3389/fcimb.2021.740662] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 10/13/2021] [Indexed: 11/13/2022] Open
Abstract
Human parechovirus (PeV-A), one of the species within the Picornaviridae family, is known to cause disease in humans. The most commonly detected genotypes are PeV-A1, associated with mild gastrointestinal disease in young children, and PeV-A3, linked to severe disease with neurological symptoms in neonates. As PeV-A are detectable in stool and nasopharyngeal samples, entry is speculated to occur via the respiratory and gastro-intestinal routes. In this study, we characterized PeV-A1 and PeV-A3 replication and tropism in the intestinal epithelium using a primary 2D model based on human fetal enteroids. This model was permissive to infection with lab-adapted strains and clinical isolates of PeV-A1, but for PeV-A3, infection could only be established with clinical isolates. Replication was highest with infection established from the basolateral side with apical shedding for both genotypes. Compared to PeV-A1, replication kinetics of PeV-A3 were slower. Interestingly, there was a difference in cell tropism with PeV-A1 infecting both Paneth cells and enterocytes, while PeV-A3 infected mainly goblet cells. This difference in cell tropism may explain the difference in replication kinetics and associated disease in humans.
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Affiliation(s)
- Inés García-Rodríguez
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam University Medical Centers (UMC), location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Amsterdam, Netherlands.,Emma Children's Hospital Department of Pediatrics Infectious Diseases, Amsterdam University Medical Centers (UMC), location Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Hetty van Eijk
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam University Medical Centers (UMC), location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Amsterdam, Netherlands
| | - Gerrit Koen
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam University Medical Centers (UMC), location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Amsterdam, Netherlands
| | - Dasja Pajkrt
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam University Medical Centers (UMC), location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Amsterdam, Netherlands.,Emma Children's Hospital Department of Pediatrics Infectious Diseases, Amsterdam University Medical Centers (UMC), location Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Adithya Sridhar
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam University Medical Centers (UMC), location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Amsterdam, Netherlands.,Emma Children's Hospital Department of Pediatrics Infectious Diseases, Amsterdam University Medical Centers (UMC), location Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Katja C Wolthers
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam University Medical Centers (UMC), location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Amsterdam, Netherlands
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28
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Sridhar A, Kapoor A, Kumar PS, Ponnuchamy M, Sivasamy B, Vo DVN. Lab-on-a-chip technologies for food safety, processing, and packaging applications: a review. Environ Chem Lett 2021; 20:901-927. [PMID: 34803553 PMCID: PMC8590809 DOI: 10.1007/s10311-021-01342-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 10/08/2021] [Indexed: 06/13/2023]
Abstract
The advent of microfluidic systems has led to significant developments in lab-on-a-chip devices integrating several functions onto a single platform. Over the years, these miniature devices have become a promising tool for faster analytical testing, displaying high precision and efficiency. Nonetheless, most microfluidic systems are not commercially available. Research is actually undergoing on the application of these devices in environmental, food, biomedical, and healthcare industries. The lab-on-a-chip industry is predicted to grow annually by 20%. Here, we review the use of lab-on-a-chip devices in the food sector. We present fabrication technologies and materials to developing lab-on-a-chip devices. We compare electrochemical, optical, colorimetric, chemiluminescence and biological methods for the detection of pathogens and microorganisms. We emphasize emulsion processing, food formulation, nutraceutical development due to their promising characteristics. Last, smart packaging technologies like radio frequency identification and indicators are highlighted because they allow better product identification and traceability.
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Affiliation(s)
- Adithya Sridhar
- School of Food Science and Nutrition, Faculty of Environment, The University of Leeds, Leeds, LS2 9JT UK
| | - Ashish Kapoor
- Department of Chemical Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203 India
| | - Ponnusamy Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai, 603110 India
| | - Muthamilselvi Ponnuchamy
- Department of Chemical Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203 India
| | - Balasubramanian Sivasamy
- Department of Chemical Engineering, KPR Institute of Engineering and Technology, Coimbatore, Tamil Nadu 641407 India
| | - Dai-Viet Nguyen Vo
- Institute of Environmental Sciences, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
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Nathan A, Ng A, Mitra A, Sooriakumaran P, Davda R, Patel S, Fricker M, Kelly J, Shaw G, Rajan P, Sridhar A, Nathan S, Payne H. Comparative Effectiveness Analyses of Salvage Prostatectomy and Salvage Radiotherapy Outcomes Following Focal or Whole-Gland Ablative Therapy (High-Intensity Focused Ultrasound, Cryotherapy or Electroporation) for Localised Prostate Cancer. Clin Oncol (R Coll Radiol) 2021; 34:e69-e78. [PMID: 34740477 DOI: 10.1016/j.clon.2021.10.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/27/2021] [Accepted: 10/20/2021] [Indexed: 11/25/2022]
Abstract
AIMS Ablative therapy, such as focal therapy, cryotherapy or electroporation, aims to treat clinically significant prostate cancer with reduced treatment-related toxicity. Up to a third of patients may require further local salvage treatment after ablative therapy failure. Limited descriptive, but no comparative, evidence exists between different salvage treatment outcomes. The aim of this study was to compare oncological and functional outcomes after salvage robot-assisted radical prostatectomy (SRARP) and salvage radiotherapy (SRT). MATERIALS AND METHODS Data were collected prospectively and retrospectively on 100 consecutive SRARP cases and 100 consecutive SRT cases after ablative therapy failure in a high-volume tertiary centre. RESULTS High-risk patients were over-represented in the SRARP group (66.0%) compared with the SRT group (48.0%) (P = 0.013). The median (interquartile range) follow-up after SRARP was 16.5 (10.0-30.0) months and 37.0 (18.5-64.0) months after SRT. SRT appeared to confer greater biochemical recurrence-free survival at 1, 2 and 3 years compared with SRARP in high-risk patients (year 3: 86.3% versus 66.0%), but biochemical recurrence-free survival was similar for intermediate-risk patients (year 3: 90.0% versus 75.6%). There was no statistical difference in pad-free continence at 12 and 24 months between SRARP (77.2 and 84.7%) and SRT (75.0 and 74.0%) (P = 0.724, 0.114). Erectile function was more likely to be preserved in men who underwent SRT. After SRT, cumulative bowel and urinary Radiation Therapy Oncology Group toxicity grade I were 25.0 and 45.0%, grade II were 11.0 and 11.0% and grade III or IV complications were 4.0 and 5.0%, respectively. CONCLUSION We report the first comparative analyses of salvage prostatectomy and radiotherapy following ablative therapy. Men with high-risk disease appear to have superior oncological outcomes after SRT; however, treatment allocation does not appear to influence oncological outcomes for men with intermediate-risk disease. Treatment allocation was associated with a different spectrum of toxicity profile. Our data may inform shared decision-making when considering salvage treatment following focal or whole-gland ablative therapy.
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Affiliation(s)
- A Nathan
- University College London, London, UK; University College London Hospitals NHS Trust, London, UK; The Royal College of Surgeons of England, London, UK.
| | - A Ng
- University College London, London, UK
| | - A Mitra
- University College London Hospitals NHS Trust, London, UK
| | - P Sooriakumaran
- University College London Hospitals NHS Trust, London, UK; Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - R Davda
- University College London Hospitals NHS Trust, London, UK
| | - S Patel
- University College London, London, UK
| | | | - J Kelly
- University College London, London, UK; University College London Hospitals NHS Trust, London, UK
| | - G Shaw
- University College London, London, UK; University College London Hospitals NHS Trust, London, UK
| | - P Rajan
- University College London Hospitals NHS Trust, London, UK
| | - A Sridhar
- University College London, London, UK; University College London Hospitals NHS Trust, London, UK
| | - S Nathan
- University College London, London, UK; University College London Hospitals NHS Trust, London, UK
| | - H Payne
- University College London, London, UK; University College London Hospitals NHS Trust, London, UK
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30
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Ng A, Nathan A, Patel S, Georgi M, Hang K, Mullins W, Asif A, Fricker M, Francis N, Collins J, Sridhar A. Can virtual classroom training improve the acquisition of robotic training skills? A prospective, cross-over, effectiveness study (V-ROBOT). EUR UROL SUPPL 2021. [DOI: 10.1016/s2666-1683(21)02268-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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31
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Nathan A, Hanna N, Rashid A, Patel S, Phuah Y, Flora K, Fricker M, Cleaveland P, Kasivisvanathan V, Williams N, Miah S, Shah N, Hines J, Collins J, Sridhar A, Kelkar A, Briggs T, Kelly J, Shaw G, Sooriakumaran P, Rajan P, Lamb B, Nathan S. 141 New Guidelines to Reduce Unnecessary Blood Tests, Delayed Discharge and Costs Following Robot Assisted Radical Prostatectomy. Br J Surg 2021. [DOI: 10.1093/bjs/znab259.1070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Objectives
Routine postoperative blood tests (POBT) following robot assisted radical prostatectomy (RARP) are used to evaluate the impact of surgery on pre-existing co-morbidities and to detect early complications. This practice dates back to an era of open surgery, when blood loss and complication rates were higher. We propose new guidelines to improve the specificity of POBT.
Method
The cases of 1040 consecutive patients who underwent a primary or salvage RARP at two large tertiary urology centres in the United Kingdom were retrospectively reviewed to form new guidelines. The new guidelines were prospectively validated in a sample of 300 patients.
Results
Derivation Dataset: 3% and 5% had intra- and post-operative Clavien-Dindo complications, respectively. 15% had clinical concerns postoperatively. 0.9% required perioperative transfusion. 78% had routine blood tests without clinical concerns, none of whom developed a complication. 98% of complications were suspected by clinical judgement. 6% of patients had a discharge delay of ≥ 1 day due to delayed or incomplete blood tests. Validation Dataset: No significant difference existed in complication, clinical concern or transfusion rates between the derivation and validation datasets. Number of POBT requested reduced by 73% (p < 0.001). The new guidelines improved POBT sensitivity for complications from 98% to 100% and specificity from 0% to 74%. Discharge delays reduced from 6% to 0% (p = 0.008). Cost savings were £178 per patient.
Conclusions
Postoperative complications and transfusion following RARP are rare. Routine POBT without clinical indication are unnecessary and inefficient. A guideline-based approach to POBT can reduce costs and optimise discharge without compromising patient safety or care.
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Affiliation(s)
- A Nathan
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust, London, United Kingdom
- University College London, London, United Kingdom
| | - N Hanna
- Department of Uro-oncology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, United Kingdom
- University of Cambridge, Cambridge, United Kingdom
| | - A Rashid
- Department of Uro-oncology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, United Kingdom
- University of Cambridge, Cambridge, United Kingdom
| | - S Patel
- University College London, London, United Kingdom
| | - Y Phuah
- University College London, London, United Kingdom
| | - K Flora
- University College London, London, United Kingdom
| | - M Fricker
- Newcastle University, Newcastle, United Kingdom
| | - P Cleaveland
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - V Kasivisvanathan
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - N Williams
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - S Miah
- Department of Uro-oncology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, United Kingdom
| | - N Shah
- Department of Uro-oncology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, United Kingdom
| | - J Hines
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - J Collins
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - A Sridhar
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - A Kelkar
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - T Briggs
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - J Kelly
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - G Shaw
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - P Sooriakumaran
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust, London, United Kingdom
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, United Kingdom
| | - P Rajan
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust, London, United Kingdom
- Barts Cancer Institute, CR-UK Barts Centre, Queen Mary University of London, London, United Kingdom
| | - B Lamb
- Department of Uro-oncology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, United Kingdom
| | - S Nathan
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust, London, United Kingdom
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Nathan A, Fricker M, De Groote R, Arora A, Phuah Y, Flora K, Patel S, Kasivisvanathan V, Sridhar A, Shaw G, Kelly J, Briggs T, Rajan P, Sooriakumaran P, Nathan S. 283 Salvage Versus Primary Robot-Assisted Radical Prostatectomy: A Propensity-Matched Comparative Effectiveness Study from A High-Volume Tertiary Centre. Br J Surg 2021. [DOI: 10.1093/bjs/znab259.1075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Aim
Salvage Robot-Assisted Radical Prostatectomy (sRARP) is a potential treatment option for locally recurrent Prostate Cancer after non-surgical primary treatment. There are minimal data comparing outcomes between propensity-matched salvage and primary Robot-Assisted Radical Prostatectomy (RARP). We compare perioperative, oncological, and functional outcomes of sRARP with primary RARP and between sRARP post-whole and focal gland therapy.
Method
1:1 propensity-matched comparison of 146 sRARP with primary RARP from a cohort of 3,852 consecutive patients from a high-volume tertiary centre.
Results
There were no significant differences in patient characteristics between the salvage and primary RARP groups. Grade III-V Clavien-Dindo complication rates were 1.3% and 0% in the salvage and primary groups, respectively (p = 0.310). Median (IQR) follow-up was 16 (10,30) and 21 (13,33) months in the salvage and primary groups, respectively. BCR rates were 30.8% and 13.7% in the salvage and primary groups, respectively (p < 0.001). Pad-free continence rates were 79.1% and 85.4% at two years in the salvage and primary groups, respectively (p = 0.160). ED rates were 95.2% and 77.4% in the salvage and primary groups, respectively (p < 0.001). Comparing the whole gland and focal gland groups, BCR rates were 33.3% and 29.1%, respectively (p = 0.687), pad-free continence rates were 66% and 89.3%, respectively (p = 0.001), and ED rates were 98.3% and 93%, respectively (p = 0.145).
Conclusions
SRARP has similar perioperative but inferior oncological outcomes to primary RARP. Continence rates are similar to primary RARP, but potency is worse. Perioperative and oncological outcomes of sRARP after focal gland therapy are similar but continence outcomes are superior compared to sRARP after whole gland therapy.
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Affiliation(s)
- A Nathan
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust, London, United Kingdom
- University College London, London, United Kingdom
| | - M Fricker
- University of Newcastle, Newcastle, United Kingdom
| | - R De Groote
- Department of Urology, Onze Lieve Vrouw Hospital Aalst, Aalst, Belgium
| | - A Arora
- Department of Urology, Tata Memorial Hospital, Mumbai, India
| | - Y Phuah
- University College London, London, United Kingdom
| | - K Flora
- University College London, London, United Kingdom
| | - S Patel
- University College London, London, United Kingdom
| | - V Kasivisvanathan
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust, London, United Kingdom
- University College London, London, United Kingdom
| | - A Sridhar
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - G Shaw
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - J Kelly
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - T Briggs
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - P Rajan
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust, London, United Kingdom
- Barts Cancer Institute, CR-UK Barts Centre, Queen Mary University of London, London, United Kingdom
| | - P Sooriakumaran
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust, London, United Kingdom
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, United Kingdom
| | - S Nathan
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust, London, United Kingdom
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Nathan A, Patel S, Georgi M, Hang K, Mullins W, Asif A, Fricker M, Ng A, Sridhar A, Collins J. 1420 ViRtual prOficiency Based prOgression for Robotic Training (VROBOT): A Prospective Cohort Study Protocol. Br J Surg 2021. [DOI: 10.1093/bjs/znab259.797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Introduction
Robotic surgery is an evolving field that requires specialist training. Historically, robotic surgery training has lacked standardisation. Recently, training centres have introduced proficiency-based modules and curriculums to certify and progress the skills of novice robotic surgeons. However, training tends to be self-directed and non-interactive. Limited interactive teaching does exist but can be inaccessible and expensive. We aim to validate the effectiveness of the current Fundamentals of Robotic Surgery (FRS) training curriculum with the addition of interactive virtual classroom teaching.
Method
16 novice surgical trainees will be assigned to two training groups. The interventions will be implemented following a one-week robotic skills induction. Both groups will receive access to the FRS curriculum for one week. The intervention group will additionally receive virtual classroom robotic skills training. The primary outcome will be the objective performance scores after training using a synthetic model based on task errors, time taken and contact pressure. In week 3, each group will receive the alternate intervention and objective performance scores will be measured to determine the trajectory of scores.
Results
Significant objective performance improvement following the intervention will be indicative of intervention quality.
Conclusions
This will be the first feasibility study evaluating the efficacy of interactive virtual robotic surgery training. It will determine the effect size of virtual classroom training on the development of basic robotic surgical skills in addition to the proficiency-based FRS curriculum. The findings will assist the development and implementation of further resource-efficient virtual robotic surgical skills training programs.
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Affiliation(s)
- A Nathan
- University College London, London, United Kingdom
| | - S Patel
- University College London, London, United Kingdom
| | - M Georgi
- University College London, London, United Kingdom
| | - K Hang
- University College London, London, United Kingdom
| | - W Mullins
- University of Cambridge, Cambridge, United Kingdom
| | - A Asif
- University of Leicester, Leicester, United Kingdom
| | - M Fricker
- Newcastle University, Newcastle, United Kingdom
| | - A Ng
- University College London, London, United Kingdom
| | - A Sridhar
- University College London, London, United Kingdom
| | - J Collins
- University College London, London, United Kingdom
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Nathan A, Fricker M, Hanna N, Asif A, Patel S, Georgi M, Hang K, Sinha A, Mullins W, Shea J, Lamb B, Sridhar A, Kelly J, Collins J. O43 Virtual: virtual interactive surgical skills classroom: a randomized controlled trial (protocol). Br J Surg 2021. [DOI: 10.1093/bjs/znab282.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Introduction
High costs and inaccessibility are significant barriers to face-to-face basic surgical skills (BSS) training. Virtual classrooms enable the combination of computer-based learning with interactive expert instruction. They may optimise resources and increase accessibility, facilitating larger-scale training with a similar educational benefit. We aim to evaluate the efficacy of virtual BSS classroom training compared to both non-interactive video and face-to-face teaching.
Method
72 medical students will be randomly assigned to three equal intervention groups based on surgical skills experience and confidence. Interventions will be implemented following an instructional video. Group A will practice independently, Group B will receive face-to-face training, and Group C will attend a virtual classroom. Participants will be recorded placing three interrupted sutures with hand tied knots pre- and post-intervention. Objective Structured Assessment of Technical Skills (OSATS) will be blind marked by two experts.
Result
Change in confidence, time to completion and a novel granular performance score will also be measured. Each intervention’s feasibility and accessibility will be assessed. Significant improvement in OSATS within groups will be indicative of intervention quality. Difference in improvement between groups will determine the relative performance of the interventions.
Conclusion
This will be the largest randomised control trial investigating virtual BSS classroom training. It will serve as a comprehensive appraisal of the suitability of virtual classrooms as an alternative to face-to-face training. The findings will assist the development and implementation of further resource-efficient training programs during the COVID-19 pandemic and beyond.
Take-home Message
This is the first RCT assessing virtual basic surgical skill classroom training and serves as a comprehensive appraisal of the suitability of virtual classrooms as an alternative to face-to-face training. The findings will assist the development and implementation of further resource-efficient training programs during the COVID-19 pandemic and in the future.
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Affiliation(s)
- A Nathan
- University College London, London, UK
| | | | - N Hanna
- University of Cambridge, Cambridge, UK
| | - A Asif
- University of Leicester, Leicester, UK
| | - S Patel
- University College London, London, UK
| | - M Georgi
- University College London, London, UK
| | - K Hang
- University College London, London, UK
| | - A Sinha
- University of Cambridge, Cambridge, UK
| | - W Mullins
- University of Cambridge, Cambridge, UK
| | - J Shea
- University of Cambridge, Cambridge, UK
| | - B Lamb
- Cambridge University Hospitals, Cambridge, UK
| | - A Sridhar
- University College London, London, UK
| | - J Kelly
- University College London, London, UK
| | - J Collins
- University College London, London, UK
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Fricker M, Nathan A, Hannah N, Rashid A, Patel S, Phuah Y, Flora K, Cleaveland P, Kasivisvanathan V, Williams N, Miah S, Shah N, Hines J, Collins J, Sridhar A, Kelkar A, Briggs T, Kelly J, Shaw G, Sooriakumaran P, Rajan P, Lamb B, Nathan S. O50 New guidelines to reduce unnecessary blood tests, delayed discharge and costs following robot assisted radical prostatectomy. Br J Surg 2021. [DOI: 10.1093/bjs/znab282.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Introduction
Routine postoperative blood tests (POBT) are used to evaluate the impact of surgery on pre-existing co-morbidities and to detect early complications. This practice dates back to an era of open surgery, when blood loss and complication rates were higher. We propose new guidelines to improve the specificity of POBT.
Method
The cases of 1040 consecutive patients who underwent a primary or salvage RARP at two large tertiary urology centres in the United Kingdom were retrospectively reviewed, and new guidelines were designed. The guidelines were prospectively validated in a cohort of 300 patients.
Result
Derivation Dataset 3% and 5% had intra- and post-operative Clavien-Dindo complications, respectively. 15% had clinical concerns postoperatively. 0.9% required perioperative transfusion. 78% had routine blood tests without clinical concerns, none of whom developed a complication. 98% of complications were suspected by clinical judgement. 6% of patients had a discharge delay of ≥ 1 days due to delayed or incomplete blood tests.
Validation Dataset No significant difference existed in complication, clinical concern or transfusion rates between the derivation and validation datasets. New guidelines improved sensitivity for complications from 98% to 100% and specificity from 0% to 74%. The number of blood tests requested reduced by 73% (P < 0.001). Discharge delays reduced from 6% to 0% (P = 0.008). Cost savings were £178 per patient.
Conclusion
Postoperative complications and transfusion following RARP are rare. Routine POBT without clinical indication are unnecessary and inefficient. A guideline-based approach to POBT can reduce costs and optimise discharge without compromising patient safety or care.
Take-home Message
Routine postoperative blood tests following robot assisted radical prostatectomy are often unnecessary. A guideline-based approach can reduce costs and optimise patient care.
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Affiliation(s)
| | - A Nathan
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust
- University College London
| | - N Hannah
- Department of Uro-oncology, Cambridge University Hospitals NHS Foundation Trust
- University of Cambridge
| | - A Rashid
- Department of Uro-oncology, Cambridge University Hospitals NHS Foundation Trust
- University of Cambridge
| | | | | | | | - P Cleaveland
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust
| | - V Kasivisvanathan
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust
| | - N Williams
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust
| | - S Miah
- Department of Uro-oncology, Cambridge University Hospitals NHS Foundation Trust
| | - N Shah
- Department of Uro-oncology, Cambridge University Hospitals NHS Foundation Trust
| | - J Hines
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust
| | - J Collins
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust
| | - A Sridhar
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust
| | - A Kelkar
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust
| | - T Briggs
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust
| | - J Kelly
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust
| | - G Shaw
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust
| | - P Sooriakumaran
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust
- Nuffield Department of Surgical Sciences, University of Oxford
| | - P Rajan
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust
- Barts Cancer Institute, CR-UK Barts Centre, Queen Mary University of London
| | - B Lamb
- Department of Uro-oncology, Cambridge University Hospitals NHS Foundation Trust
| | - S Nathan
- Department of Uro-oncology, University College London Hospitals NHS Foundation Trust
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Nathan A, Fricker M, De Groote R, Arora A, Phuah Y, Flora K, Pavan N, Kasivisvanathan V, Collins J, Kelkar A, Sridhar A, Shaw G, Rajan P, Kelly J, Briggs T, Sooriakumaran P, Nathan S. Salvage versus primary robot-assisted radical prostatectomy: A propensity-matched comparative effectiveness study from a high-volume tertiary center. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)01569-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Sridhar A, Ponnuchamy M, Kumar PS, Kapoor A, Vo DVN, Prabhakar S. Techniques and modeling of polyphenol extraction from food: a review. Environ Chem Lett 2021; 19:3409-3443. [PMID: 33753968 PMCID: PMC7968578 DOI: 10.1007/s10311-021-01217-8] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 03/04/2021] [Indexed: 05/18/2023]
Abstract
There is a growing demand for vegetal food having health benefits such as improving the immune system. This is due in particular to the presence of polyphenols present in small amounts in many fruits, vegetables and functional foods. Extracting polyphenols is challenging because extraction techniques should not alter food quality. Here, we review technologies for extracting polyphenolic compounds from foods. Conventional techniques include percolation, decoction, heat reflux extraction, Soxhlet extraction and maceration, whereas advanced techniques are ultrasound-assisted extraction, microwave-assisted extraction, supercritical fluid extraction, high-voltage electric discharge, pulse electric field extraction and enzyme-assisted extraction. Advanced techniques are 32-36% more efficient with approximately 15 times less energy consumption and producing higher-quality extracts. Membrane separation and encapsulation appear promising to improve the sustainability of separating polyphenolic compounds. We present kinetic models and their influence on process parameters such as solvent type, solid and solvent ratio, temperature and particle size.
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Affiliation(s)
- Adithya Sridhar
- Department of Chemical Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203 India
| | - Muthamilselvi Ponnuchamy
- Department of Chemical Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203 India
| | - Ponnusamy Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, India
| | - Ashish Kapoor
- Department of Chemical Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203 India
| | - Dai-Viet N. Vo
- Center of Excellence for Green Energy and Environmental Nanomaterials (CE@GrEEN), Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
| | - Sivaraman Prabhakar
- Department of Chemical Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203 India
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Sridhar A, Simmini S, Ribeiro CMS, Tapparel C, Evers MM, Pajkrt D, Wolthers K. A Perspective on Organoids for Virology Research. Viruses 2020; 12:v12111341. [PMID: 33238561 PMCID: PMC7700289 DOI: 10.3390/v12111341] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/12/2020] [Accepted: 11/22/2020] [Indexed: 12/27/2022] Open
Abstract
Animal models and cell lines are invaluable for virology research and host-pathogen interaction studies. However, it is increasingly evident that these models are not sufficient to fully understand human viral diseases. With the advent of three-dimensional organotypic cultures, it is now possible to study viral infections in the human context. This perspective explores the potential of these organotypic cultures, also known as organoids, for virology research, antiviral testing, and shaping the virology landscape.
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Affiliation(s)
- Adithya Sridhar
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Location Academic Medical Center, University of Amsterdam, 1100 AZ Amsterdam, The Netherlands; (A.S.); (D.P.)
- Department of Pediatric Infectious Diseases, Emma Children’s Hospital, Amsterdam UMC, Location Academic Medical Center, University of Amsterdam, 1100 AZ Amsterdam, The Netherlands
| | - Salvatore Simmini
- Gastrointestinal Biology Group, STEMCELL Technologies UK Ltd., Cambridge CB28 9TL, UK;
| | - Carla M. S. Ribeiro
- Department of Experimental Immunology, Amsterdam Institute for Infection and Immunity, Amsterdam UMC, University of Amsterdam, 1100 AZ Amsterdam, The Netherlands;
| | - Caroline Tapparel
- Department of Microbiology and Molecular Medicine, Faculty of Medicine, University of Geneva, 1211 Geneva, Switzerland;
- Division of Infectious Diseases, Geneva University Hospital, 1205 Geneva, Switzerland
| | - Melvin M. Evers
- Department of Research and Development, uniQure Biopharma B.V., 1105 BE Amsterdam, The Netherlands;
| | - Dasja Pajkrt
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Location Academic Medical Center, University of Amsterdam, 1100 AZ Amsterdam, The Netherlands; (A.S.); (D.P.)
- Department of Pediatric Infectious Diseases, Emma Children’s Hospital, Amsterdam UMC, Location Academic Medical Center, University of Amsterdam, 1100 AZ Amsterdam, The Netherlands
| | - Katja Wolthers
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Location Academic Medical Center, University of Amsterdam, 1100 AZ Amsterdam, The Netherlands; (A.S.); (D.P.)
- Correspondence:
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García-Rodríguez I, Sridhar A, Pajkrt D, Wolthers KC. Put Some Guts into It: Intestinal Organoid Models to Study Viral Infection. Viruses 2020; 12:v12111288. [PMID: 33187072 PMCID: PMC7697248 DOI: 10.3390/v12111288] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/30/2020] [Accepted: 11/09/2020] [Indexed: 02/06/2023] Open
Abstract
The knowledge about enteric viral infection has vastly increased over the last eight years due to the development of intestinal organoids and enteroids that suppose a step forward from conventional studies using cell lines. Intestinal organoids and enteroids are three-dimensional (3D) models that closely mimic intestinal cellular heterogeneity and organization. The barrier function within these models has been adapted to facilitate viral studies. In this review, several adaptations (such as organoid-derived two-dimensional (2D) monolayers) and original intestinal 3D models are discussed. The specific advantages and applications, as well as improvements of each model are analyzed and an insight into the possible path for the field is given.
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Affiliation(s)
- Inés García-Rodríguez
- OrganoVIR Lab, Department of Medical Microbiology, Amsterdam UMC, Academic Medical Center, University of Amsterdam, 1100 AZ Amsterdam, The Netherlands; (I.G.-R.); (A.S.)
- Department of Pediatrics Infectious Diseases, Emma Children’s Hospital, Amsterdam UMC, Academic Medical Center, University of Amsterdam, 1100 AZ Amsterdam, The Netherlands;
| | - Adithya Sridhar
- OrganoVIR Lab, Department of Medical Microbiology, Amsterdam UMC, Academic Medical Center, University of Amsterdam, 1100 AZ Amsterdam, The Netherlands; (I.G.-R.); (A.S.)
- Department of Pediatrics Infectious Diseases, Emma Children’s Hospital, Amsterdam UMC, Academic Medical Center, University of Amsterdam, 1100 AZ Amsterdam, The Netherlands;
| | - Dasja Pajkrt
- Department of Pediatrics Infectious Diseases, Emma Children’s Hospital, Amsterdam UMC, Academic Medical Center, University of Amsterdam, 1100 AZ Amsterdam, The Netherlands;
| | - Katja C. Wolthers
- OrganoVIR Lab, Department of Medical Microbiology, Amsterdam UMC, Academic Medical Center, University of Amsterdam, 1100 AZ Amsterdam, The Netherlands; (I.G.-R.); (A.S.)
- Correspondence:
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40
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Sridhar A, Ponnuchamy M, Kumar PS, Kapoor A. Food preservation techniques and nanotechnology for increased shelf life of fruits, vegetables, beverages and spices: a review. Environ Chem Lett 2020; 19:1715-1735. [PMID: 33192209 PMCID: PMC7651826 DOI: 10.1007/s10311-020-01126-2] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 10/17/2020] [Indexed: 05/02/2023]
Abstract
Food wastage is a major issue impacting public health, the environment and the economy in the context of rising population and decreasing natural resources. Wastage occurs at all stages from harvesting to the consumer, calling for advanced techniques of food preservation. Wastage is mainly due to presence of moisture and microbial organisms present in food. Microbes can be killed or deactivated, and cross-contamination by microbes such as the coronavirus disease 2019 (COVID-19) should be avoided. Moisture removal may not be feasible in all cases. Preservation methods include thermal, electrical, chemical and radiation techniques. Here, we review the advanced food preservation techniques, with focus on fruits, vegetables, beverages and spices. We emphasize electrothermal, freezing and pulse electric field methods because they allow both pathogen reduction and improvement of nutritional and physicochemical properties. Ultrasound technology and ozone treatment are suitable to preserve heat sensitive foods. Finally, nanotechnology in food preservation is discussed.
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Affiliation(s)
- Adithya Sridhar
- Department of Chemical Engineering, College of Engineering and Technology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur, 603203 Kanchipuram, Chennai, India
| | - Muthamilselvi Ponnuchamy
- Department of Chemical Engineering, College of Engineering and Technology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur, 603203 Kanchipuram, Chennai, India
| | - Ponnusamy Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110 India
| | - Ashish Kapoor
- Department of Chemical Engineering, College of Engineering and Technology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur, 603203 Kanchipuram, Chennai, India
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41
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Nathan A, Hanna N, Rashid A, Patel S, Phuah Y, Flora K, Cleaveland P, Kasivisvanathan V, Miah S, Collins J, Sridhar A, Kelkar A, Hines J, Kelly J, Shah N, Briggs T, Shaw G, Sooriakumaran P, Rajan P, Lamb B, Nathan S. Novel guidelines to avoid routine blood tests after Robot Assisted Radical Prostatectomy (RARP). EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)35850-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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42
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Chalazan B, Mol D, Sridhar A, Ornelas-Loredo A, Darbar F, Qiao V, Alzahrani Z, Chen Y, Ellinor P, Darbar D. Sequencing candidate genes in African American and Hispanic/ Latino probands with early-onset Atrial Fibrillation. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Mutations in cardiac ion channels, structural proteins and signaling molecules have been identified in European whites with early-onset AF (EOAF). However, it remains unclear if genetic variation also contributes to the etiology of EOAF in ethnic minorities.
Purpose
To determine the prevalence of disease causing variants in candidate AF genes in African American and Hispanic/Latino probands with EOAF.
Method
In this family-based study, probands of African and Hispanic descent with EOAF (defined as AF ≤65 years) were prospectively enrolled in a clinical-DNA biorepository and underwent targeted sequencing for 60 AF candidate genes. Variants were filtered at 20X read depth and clinically evaluated with American College of Medical Genetics and Genomics and Association for Molecular Pathology (ACMG/AMP) as well as the Association for Clinical Genomic Science (ACGS) criteria for disease-causing mutations.
Results
Among 227 EOAF probands with mean (SD) age of AF 51.0 (9.9) years, 132 (58.0%) were men and 148 (65.0%) African American and 79 (35.0%) Hispanic/Latino. Sequencing 60 candidate AF genes revealed 90 variants that met filtering criteria and underwent clinical evaluation. We identified 16 (7.0%) EOAF probands with a likely pathogenic or pathogenic variant with the majority being loss of function (62.5%) and located in the TTN gene (50.0%). We confirmed a family history of AF in 24 probands (10.6%) and 6 families with >1 affected member a variant of unknown significance (VUS) in genes encoding for a sodium channel (SCN10A), potassium channel (KCNE5), sarcomeric proteins (MYH6, TTN) and atrial natriuretic peptide (NPPA) co-segregated with AF.
Conclusion
Gene sequencing in African American and Hispanic/Latinos probands with EOAF identified a small percentage of disease causing variants in patients with EOAF. Our findings not only represent important progress toward molecular phenotyping of EOAF, but also provides insight into the underlying pathophysiology toward targeted mechanism-based therapies for AF in ethnic minorities.
Funding Acknowledgement
Type of funding source: Private grant(s) and/or Sponsorship. Main funding source(s): American Heart Association
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Affiliation(s)
- B Chalazan
- University of British Columbia, Vancouver, Canada
| | - D Mol
- University of Illinois at Chicago, Medicine, Chicago, United States of America
| | - A Sridhar
- University of Illinois at Chicago, Medicine, Chicago, United States of America
| | - A Ornelas-Loredo
- University of Illinois at Chicago, Medicine, Chicago, United States of America
| | - F Darbar
- University of Illinois at Chicago, Medicine, Chicago, United States of America
| | - V Qiao
- University of Illinois at Chicago, Medicine, Chicago, United States of America
| | - Z Alzahrani
- University of Illinois at Chicago, Medicine, Chicago, United States of America
| | - Y Chen
- University of Illinois at Chicago, Medicine, Chicago, United States of America
| | - P Ellinor
- Broad Institute of MIT and Harvard, Boston, United States of America
| | - D Darbar
- University of Illinois at Chicago, Medicine, Chicago, United States of America
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43
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Tan W, Marchese M, Sridhar A, Hellawell G, Mossanen M, Fowler S, Colquhoun A, Kelly J, Trinh QD. Defining factors associated with quality surgery following radical cystectomy: Analysis of the British Association of Urological Surgeons (BAUS) cystectomy audit. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)34149-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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44
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Roodsant T, Navis M, Aknouch I, Renes IB, van Elburg RM, Pajkrt D, Wolthers KC, Schultsz C, van der Ark KCH, Sridhar A, Muncan V. A Human 2D Primary Organoid-Derived Epithelial Monolayer Model to Study Host-Pathogen Interaction in the Small Intestine. Front Cell Infect Microbiol 2020; 10:272. [PMID: 32656095 PMCID: PMC7326037 DOI: 10.3389/fcimb.2020.00272] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 05/07/2020] [Indexed: 12/12/2022] Open
Abstract
Gut organoids are stem cell derived 3D models of the intestinal epithelium that are useful for studying interactions between enteric pathogens and their host. While the organoid model has been used for both bacterial and viral infections, this is a closed system with the luminal side being inaccessible without microinjection or disruption of the organoid polarization. In order to overcome this and simplify their applicability for transepithelial studies, permeable membrane based monolayer approaches are needed. In this paper, we demonstrate a method for generating a monolayer model of the human fetal intestinal polarized epithelium that is fully characterized and validated. Proximal and distal small intestinal organoids were used to generate 2D monolayer cultures, which were characterized with respect to epithelial cell types, polarization, barrier function, and gene expression. In addition, viral replication and bacterial translocation after apical infection with enteric pathogens Enterovirus A71 and Listeria monocytogenes were evaluated, with subsequent monitoring of the pro-inflammatory host response. This human 2D fetal intestinal monolayer model will be a valuable tool to study host-pathogen interactions and potentially reduce the use of animals in research.
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Affiliation(s)
- Thomas Roodsant
- Department of Global Health-Amsterdam Institute for Global Health and Development, Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, Netherlands.,Department of Medical Microbiology, Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, Netherlands
| | - Marit Navis
- Tytgat Institute for Intestinal and Liver Research, Amsterdam Gastroenterology Endocrinology and Metabolism, Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, Netherlands
| | - Ikrame Aknouch
- Department of Medical Microbiology, Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, Netherlands.,Viroclinics Xplore, Schaijk, Netherlands
| | - Ingrid B Renes
- Danone Nutricia Research, Utrecht, Netherlands.,Department of Pediatrics, Amsterdam University Medical Center (UMC), Emma Children's Hospital, University of Amsterdam, Amsterdam, Netherlands
| | - Ruurd M van Elburg
- Department of Pediatrics, Amsterdam University Medical Center (UMC), Emma Children's Hospital, University of Amsterdam, Amsterdam, Netherlands
| | - Dasja Pajkrt
- Department of Pediatric Infectious Diseases, Amsterdam University Medical Center (UMC), Emma Children's Hospital, University of Amsterdam, Amsterdam, Netherlands
| | - Katja C Wolthers
- Department of Medical Microbiology, Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, Netherlands
| | - Constance Schultsz
- Department of Global Health-Amsterdam Institute for Global Health and Development, Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, Netherlands.,Department of Medical Microbiology, Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, Netherlands
| | - Kees C H van der Ark
- Department of Global Health-Amsterdam Institute for Global Health and Development, Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, Netherlands.,Department of Medical Microbiology, Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, Netherlands
| | - Adithya Sridhar
- Department of Medical Microbiology, Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, Netherlands
| | - Vanesa Muncan
- Tytgat Institute for Intestinal and Liver Research, Amsterdam Gastroenterology Endocrinology and Metabolism, Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, Netherlands
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45
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De Groote R, Nathan A, De Bleser E, Pavan N, Sridhar A, Kelly J, Sooriakumaran P, Briggs T, Nathan S. Techniques and Outcomes of Salvage Robot-Assisted Radical Prostatectomy (sRARP). Eur Urol 2020; 78:885-892. [PMID: 32461073 DOI: 10.1016/j.eururo.2020.05.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 05/03/2020] [Indexed: 12/01/2022]
Abstract
BACKGROUND Salvage Robot-Assisted Radical Prostatectomy (sRARP) has been described as feasible treatment for the management of localised prostate cancer (PCa) recurrence after primary treatment. However, no large reports have published cancer and quality outcomes. OBJECTIVE To report perioperative, functional and oncologic outcomes of sRARP in patients with localised PCa recurrence. DESIGN, SETTING, AND PARTICIPANTS We retrospectively evaluated 106 patients with local recurrence eligible for sRARP. SURGICAL PROCEDURE Surgery was performed using the DaVinci Si system similar to the standard approach but with adaptation to the primary treatment. MEASUREMENTS Peri-operative outcomes included 90-day complication rate. Functional outcomes included rates of incontinence and erectile dysfunction. Oncological outcomes included tumour staging, margin rate and recurrence. RESULTS AND LIMITATIONS Primary treatment was High Intensity Focused Ultrasound (HIFU) in 59 (56%) patients, 27 (25%) radiotherapy, 10 (9%) seed brachytherapy, 8 (8%) solitary androgen deprivation therapy (ADT), one (1%) cryotherapy and one (1%) electroporation / Nanoknife. Median follow-up was 2.1 years. 90-day complication rate was 8%. At two years or more, 50% were fully continent and 33% were socially continent. Continence rates tended to be better after focal compared to whole-gland treatments. Erectile dysfunction was present in 95%. Positive surgical margin rate was 39%. Biochemical recurrence occurred in 13% and local or metastatic recurrence in 11%. CONCLUSIONS sRARP is technically more challenging but is a feasible option in high-volume centres for treatment of recurrent PCa. Patients should be counselled that functional outcomes are inferior to primary RARP. Adjustment of surgical technique according to the primary treatment is key for good surgical outcomes. PATIENT SUMMARY We report our experience with sRARP for the management of localised PCa recurrence after primary treatment. This represents a feasible approach with acceptable peri-operative complications and cancer outcomes. Functional outcomes are inferior to RARP in the primary setting.
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Affiliation(s)
- R De Groote
- Department of Urology, University College London Hospital. NHS Foundation Trust. London. UK; Department of Urology, Onze Lieve Vrouw Hospital Aalst, Aalst, Belgium.
| | - A Nathan
- Department of Urology, University College London Hospital. NHS Foundation Trust. London. UK
| | - E De Bleser
- Department of Urology, Ghent University Hospital, Ghent, Belgium
| | - N Pavan
- Department of Urology, University College London Hospital. NHS Foundation Trust. London. UK; Department of Medicine, Surgery and Health Sciences, Urological Clinic, University of Trieste, Trieste, Italy
| | - A Sridhar
- Department of Urology, University College London Hospital. NHS Foundation Trust. London. UK
| | - J Kelly
- Department of Urology, University College London Hospital. NHS Foundation Trust. London. UK
| | - P Sooriakumaran
- Department of Urology, University College London Hospital. NHS Foundation Trust. London. UK
| | - T Briggs
- Department of Urology, University College London Hospital. NHS Foundation Trust. London. UK
| | - S Nathan
- Department of Urology, University College London Hospital. NHS Foundation Trust. London. UK
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Massias JS, Smith EMD, Al-Abadi E, Armon K, Bailey K, Ciurtin C, Davidson J, Gardner-Medwin J, Haslam K, Hawley DP, Leahy A, Leone V, McErlane F, Mewar D, Modgil G, Moots R, Pilkington C, Ramanan AV, Rangaraj S, Riley P, Sridhar A, Wilkinson N, Beresford MW, Hedrich CM. Clinical and laboratory characteristics in juvenile-onset systemic lupus erythematosus across age groups. Lupus 2020; 29:474-481. [PMID: 32233733 PMCID: PMC7528537 DOI: 10.1177/0961203320909156] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Background Systemic lupus erythematous (SLE) is a systemic autoimmune/inflammatory condition. Approximately 15–20% of patients develop symptoms before their 18th birthday and are diagnosed with juvenile-onset SLE (JSLE). Gender distribution, clinical presentation, disease courses and outcomes vary significantly between JSLE patients and individuals with adult-onset SLE. This study aimed to identify age-specific clinical and/or serological patterns in JSLE patients enrolled to the UK JSLE Cohort Study. Methods Patient records were accessed and grouped based on age at disease-onset: pre-pubertal (≤7 years), peri-pubertal (8–13 years) and adolescent (14–18 years). The presence of American College of Rheumatology (ACR) classification criteria, laboratory results, disease activity [British Isles Lupus Assessment Group (BILAG) and Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2 K) scores] and damage [Systemic Lupus International Collaborating Clinics (SLICC) damage index] were evaluated at diagnosis and last follow up. Results A total of 418 JSLE patients were included in this study: 43 (10.3%) with pre-pubertal disease onset; 240 (57.4%) with peri-pubertal onset and 135 (32.3%) were diagnosed during adolescence. At diagnosis, adolescent JSLE patients presented with a higher number of ACR criteria when compared with pre-pubertal and peri-pubertal patients [pBILAG2004 scores: 9(4–20] vs. 7(3–13] vs. 7(3–14], respectively, p = 0.015] with increased activity in the following BILAG domains: mucocutaneous (p = 0.025), musculoskeletal (p = 0.029), renal (p = 0.027) and cardiorespiratory (p = 0.001). Furthermore, adolescent JSLE patients were more frequently ANA-positive (p = 0.034) and exhibited higher anti-dsDNA titres (p = 0.001). Pre-pubertal individuals less frequently presented with leukopenia (p = 0.002), thrombocytopenia (p = 0.004) or low complement (p = 0.002) when compared with other age groups. No differences were identified in disease activity (pBILAG2004 score), damage (SLICC damage index) and the number of ACR criteria fulfilled at last follow up. Conclusions Disease presentations and laboratory findings vary significantly between age groups within a national cohort of JSLE patients. Patients diagnosed during adolescence exhibit greater disease activity and “classic” autoantibody, immune cell and complement patterns when compared with younger patients. This supports the hypothesis that pathomechanisms may vary between patient age groups.
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Affiliation(s)
- J S Massias
- School of Medicine, University of Liverpool, UK
| | - E M D Smith
- Department of Women's & Children's Health, Institute of Translational Medicine, University of Liverpool, UK.,Department of Paediatric Rheumatology, Alder Hey Children's NHS Foundation Trust Hospital, UK
| | - E Al-Abadi
- Department of Rheumatology, Birmingham Children's Hospital, Birmingham, UK
| | - K Armon
- Department of Paediatric Rheumatology, Cambridge University Hospitals, Cambridge, UK
| | - K Bailey
- Department of Paediatric Rheumatology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - C Ciurtin
- Department of Rheumatology, University College London Hospitals NHS Foundation Trust, London, UK
| | - J Davidson
- Department of Paediatric Rheumatology, Royal Hospital for Sick Children, Edinburgh, UK
| | | | - K Haslam
- Department of Paediatrics, Bradford Royal Infirmary, Bradford, UK
| | - D P Hawley
- Department of Paediatric Rheumatology, Sheffield Children's Hospital, Sheffield, UK
| | - A Leahy
- Department of Paediatric Rheumatology, Southampton General Hospital, Southampton, UK
| | - V Leone
- Department of Paediatric Rheumatology, Leeds Children Hospital, Leeds, UK
| | - F McErlane
- Paediatric Rheumatology, Great North Children's Hospital, Royal Victoria Infirmary, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - D Mewar
- Department of Rheumatology, Royal Liverpool University Hospital, Liverpool, UK
| | - G Modgil
- Department of Paediatrics, Musgrove Park Hospital, Taunton, UK
| | - R Moots
- Department of Rheumatology, University Hospital Aintree, Liverpool, UK
| | - C Pilkington
- Department of Paediatric Rheumatology, Great Ormond Street Hospital, London, UK
| | - A V Ramanan
- University Hospitals Bristol NHS Foundation Trust & Bristol Medical School, University of Bristol, Bristol, UK
| | - S Rangaraj
- Department of Paediatric Rheumatology, Nottingham University Hospitals Nottingham, UK
| | - P Riley
- Department of Paediatric Rheumatology, Royal Manchester Children's Hospital, Manchester, UK
| | - A Sridhar
- Department of Paediatrics, Leicester Royal Infirmary, Leicester, UK
| | - N Wilkinson
- Guy's & St Thomas's NHS Foundation Trust, Evelina Children's Hospital, London, UK
| | - M W Beresford
- Department of Women's & Children's Health, Institute of Translational Medicine, University of Liverpool, UK.,Department of Paediatric Rheumatology, Alder Hey Children's NHS Foundation Trust Hospital, UK
| | - C M Hedrich
- Department of Women's & Children's Health, Institute of Translational Medicine, University of Liverpool, UK.,Department of Paediatric Rheumatology, Alder Hey Children's NHS Foundation Trust Hospital, UK
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Kumar PV, Sridhar A, Sudheer K. Cardiovascular Manifestations in Acute Ischaemic Stroke. J Assoc Physicians India 2020; 68:58. [PMID: 31979631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
| | - A Sridhar
- Great Eastern Medical College and Hospital
| | - K Sudheer
- Great Eastern Medical College and Hospital
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48
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Sridhar A, Karelehto E, Brouwer L, Pajkrt D, Wolthers KC. Parechovirus A Pathogenesis and the Enigma of Genotype A-3. Viruses 2019; 11:v11111062. [PMID: 31739613 PMCID: PMC6893760 DOI: 10.3390/v11111062] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/12/2019] [Accepted: 11/12/2019] [Indexed: 12/16/2022] Open
Abstract
Parechovirus A is a species in the Parechovirus genus within the Picornaviridae family that can cause severe disease in children. Relatively little is known on Parechovirus A epidemiology and pathogenesis. This review aims to explore the Parechovirus A literature and highlight the differences between Parechovirus A genotypes from a pathogenesis standpoint. In particular, the curious case of Parechovirus-A3 and the genotype-specific disease association will be discussed. Finally, a brief outlook on Parechovirus A research is provided.
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Affiliation(s)
- Adithya Sridhar
- Laboratory of Clinical Virology, Department of Medical Microbiology, Amsterdam UMC, location Academic Medical Center, University of Amsterdam, 1100 AZ Amsterdam, The Netherlands; (E.K.); (L.B.); (K.C.W.)
- Correspondence:
| | - Eveliina Karelehto
- Laboratory of Clinical Virology, Department of Medical Microbiology, Amsterdam UMC, location Academic Medical Center, University of Amsterdam, 1100 AZ Amsterdam, The Netherlands; (E.K.); (L.B.); (K.C.W.)
| | - Lieke Brouwer
- Laboratory of Clinical Virology, Department of Medical Microbiology, Amsterdam UMC, location Academic Medical Center, University of Amsterdam, 1100 AZ Amsterdam, The Netherlands; (E.K.); (L.B.); (K.C.W.)
| | - Dasja Pajkrt
- Department of Pediatrics, Emma Children’s Hospital, Amsterdam UMC, location Academic Medical Center, University of Amsterdam, 1100 AZ Amsterdam, The Netherlands;
| | - Katja C. Wolthers
- Laboratory of Clinical Virology, Department of Medical Microbiology, Amsterdam UMC, location Academic Medical Center, University of Amsterdam, 1100 AZ Amsterdam, The Netherlands; (E.K.); (L.B.); (K.C.W.)
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49
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Guckian J, Sridhar A, Meggitt SJ. Exploring the perspectives of dermatology undergraduates with an escape room game. Clin Exp Dermatol 2019; 45:153-158. [DOI: 10.1111/ced.14039] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/01/2019] [Indexed: 11/30/2022]
Affiliation(s)
- J. Guckian
- Department of Medical Education Newcastle University Newcastle UK
| | - A. Sridhar
- Department of Medical Education Newcastle University Newcastle UK
| | - S. J. Meggitt
- Department of Medical Education Newcastle University Newcastle UK
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50
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Pluntke U, Gerke S, Sridhar A, Weiss J, Michel B. Evaluation and Classification of Physical and Psychological Stress in Firefighters using Heart Rate Variability. Annu Int Conf IEEE Eng Med Biol Soc 2019; 2019:2207-2212. [PMID: 31946339 DOI: 10.1109/embc.2019.8856596] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Stress detection has a huge potential for disease prevention and management, and to improve the quality of life of people. Also, work safety can be improved if stress is timely and reliably detected. The availability of low-cost consumer wearable devices that monitor vital-signs, gives access to stress detection schemes. Heart rate variability (HRV), a stress-related vital-sign, was derived from wearable device data to reliably determine stress-levels. In order to build and train a deployable stress-detector, we collected labeled HRV data in controlled environments, where subjects were exposed to physical, psychological and combined stress. We then applied machine learning to separate and identify the different stress types and understand the relationship with HRV data. The resulting C5 decision tree model is capable of identifying the stress type with 88% accuracy, in a 1-minute time window. For the first time physical and psychological stress can be distinguished with a 1-minute time resolution from smoke-divers, firefighters, who enter high-risk environments to rescue people, and experience intense physical and psychological stress. To improve our model, we created an integrated system to acquire expert labels in real-time from firefighters during their training in a Rescue Maze. A next goal is to transfer the algorithms into generic systems for monitoring and coaching high-risk professionals to improve their stress resilience during training and reduce their risk in the field.
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