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Bray TJP, Eddison J, Hamilton J, Webb D, Bennett A, Machado PM, Gaffney K, Sengupta R, Hall-Craggs MA, Marzo-Ortega H. Evaluation of the current use of MRI to aid the diagnosis of axial spondyloarthritis in the UK: results from a freedom of information request. Clin Radiol 2024; 79:107-116. [PMID: 37968226 DOI: 10.1016/j.crad.2023.10.009] [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: 04/10/2023] [Revised: 09/26/2023] [Accepted: 10/05/2023] [Indexed: 11/17/2023]
Abstract
AIM To evaluate the impact of recommendations from the 2019 consensus exercise conducted by radiologists and rheumatologists on the use of magnetic resonance imaging (MRI) to investigate axial spondyloarthritis (axSpA) in clinical practice. MATERIALS AND METHODS A freedom of information (FOI) request was used to assess the use of MRI in the diagnosis of axSpA and radiologists' awareness of the 2019 guidance across all NHS Trusts and Health Boards in the UK, including England, Scotland, Northern Ireland, and Wales. RESULTS The FOI request was sent to 150 Trusts/Health Boards, and 93 full responses were received. Of the 93 respondents (97%), 90 reported familiarity with the term axSpA and 70/93 (75%) reported familiarity with the 2019 recommendations. Awareness of recommendations regarding specific MRI features supportive of the diagnosis of axSpA was 74/93 (80%) for the sacroiliac joints (SIJs) and 66/93 (71%) for the spine. The median wait for MRI acquisition was 2-3 months. Fifty-two of the 93 (56%) reported at least some outsourcing of axSpA MRI (33%/29% for specialist/non-specialist outsourcing respectively); 32/93 (34%) reported some scans being reported in-house by non-musculoskeletal radiologists. CONCLUSION There have been several positive developments in the understanding and use of MRI for the diagnosis of axSpA in the UK since the 2017 survey, although substantial scope for further improvement remains. Several new challenges have also emerged, including the increase in waiting times, reliance on outsourcing, and the reporting of MRI by non-musculoskeletal radiologists.
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Affiliation(s)
- T J P Bray
- Centre for Medical Imaging, University College London, London, UK; Department of Imaging, University College London Hospital, London, UK.
| | - J Eddison
- National Axial Spondyloarthritis Society, London, UK
| | - J Hamilton
- National Axial Spondyloarthritis Society, London, UK
| | - D Webb
- National Axial Spondyloarthritis Society, London, UK
| | - A Bennett
- Academic Department of Military Rehabilitation, Defence Medical Rehabilitation Unit, Loughborough, UK; National Heart and Lung Institute, Imperial College, London, UK
| | - P M Machado
- Centre for Rheumatology & Department of Neuromuscular Diseases, University College London, London, UK
| | - K Gaffney
- Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich, UK
| | - R Sengupta
- Royal National Hospital for Rheumatic Diseases and University of Bath, Bath, UK
| | - M A Hall-Craggs
- Centre for Medical Imaging, University College London, London, UK; Department of Imaging, University College London Hospital, London, UK
| | - H Marzo-Ortega
- NIHR Leeds Biomedical Research Centre, Leeds Teaching Hospitals Trust and Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, UK
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Effects of empagliflozin on progression of chronic kidney disease: a prespecified secondary analysis from the empa-kidney trial. Lancet Diabetes Endocrinol 2024; 12:39-50. [PMID: 38061371 PMCID: PMC7615591 DOI: 10.1016/s2213-8587(23)00321-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Sodium-glucose co-transporter-2 (SGLT2) inhibitors reduce progression of chronic kidney disease and the risk of cardiovascular morbidity and mortality in a wide range of patients. However, their effects on kidney disease progression in some patients with chronic kidney disease are unclear because few clinical kidney outcomes occurred among such patients in the completed trials. In particular, some guidelines stratify their level of recommendation about who should be treated with SGLT2 inhibitors based on diabetes status and albuminuria. We aimed to assess the effects of empagliflozin on progression of chronic kidney disease both overall and among specific types of participants in the EMPA-KIDNEY trial. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA), and included individuals aged 18 years or older with an estimated glomerular filtration rate (eGFR) of 20 to less than 45 mL/min per 1·73 m2, or with an eGFR of 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher. We explored the effects of 10 mg oral empagliflozin once daily versus placebo on the annualised rate of change in estimated glomerular filtration rate (eGFR slope), a tertiary outcome. We studied the acute slope (from randomisation to 2 months) and chronic slope (from 2 months onwards) separately, using shared parameter models to estimate the latter. Analyses were done in all randomly assigned participants by intention to treat. EMPA-KIDNEY is registered at ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and then followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroups of eGFR included 2282 (34·5%) participants with an eGFR of less than 30 mL/min per 1·73 m2, 2928 (44·3%) with an eGFR of 30 to less than 45 mL/min per 1·73 m2, and 1399 (21·2%) with an eGFR 45 mL/min per 1·73 m2 or higher. Prespecified subgroups of uACR included 1328 (20·1%) with a uACR of less than 30 mg/g, 1864 (28·2%) with a uACR of 30 to 300 mg/g, and 3417 (51·7%) with a uACR of more than 300 mg/g. Overall, allocation to empagliflozin caused an acute 2·12 mL/min per 1·73 m2 (95% CI 1·83-2·41) reduction in eGFR, equivalent to a 6% (5-6) dip in the first 2 months. After this, it halved the chronic slope from -2·75 to -1·37 mL/min per 1·73 m2 per year (relative difference 50%, 95% CI 42-58). The absolute and relative benefits of empagliflozin on the magnitude of the chronic slope varied significantly depending on diabetes status and baseline levels of eGFR and uACR. In particular, the absolute difference in chronic slopes was lower in patients with lower baseline uACR, but because this group progressed more slowly than those with higher uACR, this translated to a larger relative difference in chronic slopes in this group (86% [36-136] reduction in the chronic slope among those with baseline uACR <30 mg/g compared with a 29% [19-38] reduction for those with baseline uACR ≥2000 mg/g; ptrend<0·0001). INTERPRETATION Empagliflozin slowed the rate of progression of chronic kidney disease among all types of participant in the EMPA-KIDNEY trial, including those with little albuminuria. Albuminuria alone should not be used to determine whether to treat with an SGLT2 inhibitor. FUNDING Boehringer Ingelheim and Eli Lilly.
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P, Pesce F, Pessolano G, Petchey W, Petr EJ, Pfab T, Phelan P, Phillips R, Phillips T, Phipps M, Piccinni G, Pickett T, Pickworth S, Piemontese M, Pinto D, Piper J, Plummer-Morgan J, Poehler D, Polese L, Poma V, Pontremoli R, Postal A, Pötz C, Power A, Pradhan N, Pradhan R, Preiss D, Preiss E, Preston K, Prib N, Price L, Provenzano C, Pugay C, Pulido R, Putz F, Qiao Y, Quartagno R, Quashie-Akponeware M, Rabara R, Rabasa-Lhoret R, Radhakrishnan D, Radley M, Raff R, Raguwaran S, Rahbari-Oskoui F, Rahman M, Rahmat K, Ramadoss S, Ramanaidu S, Ramasamy S, Ramli R, Ramli S, Ramsey T, Rankin A, Rashidi A, Raymond L, Razali WAFA, Read K, Reiner H, Reisler A, Reith C, Renner J, Rettenmaier B, Richmond L, Rijos D, Rivera R, Rivers V, Robinson H, Rocco M, Rodriguez-Bachiller I, Rodriquez R, Roesch C, Roesch J, Rogers J, Rohnstock M, Rolfsmeier S, Roman M, Romo A, Rosati A, Rosenberg S, Ross T, Rossello X, Roura M, Roussel M, Rovner S, Roy S, Rucker S, Rump L, Ruocco M, Ruse S, Russo F, Russo M, Ryder M, Sabarai A, Saccà C, Sachson R, Sadler E, Safiee NS, Sahani M, Saillant A, Saini J, Saito C, Saito S, Sakaguchi K, Sakai M, Salim H, Salviani C, Sammons E, Sampson A, Samson F, Sandercock P, Sanguila S, Santorelli G, Santoro D, Sarabu N, Saram T, Sardell R, Sasajima H, Sasaki T, Satko S, Sato A, Sato D, Sato H, Sato H, Sato J, Sato T, Sato Y, Satoh M, Sawada K, Schanz M, Scheidemantel F, Schemmelmann M, Schettler E, Schettler V, Schlieper GR, Schmidt C, Schmidt G, Schmidt U, Schmidt-Gurtler H, Schmude M, Schneider A, Schneider I, Schneider-Danwitz C, Schomig M, Schramm T, Schreiber A, Schricker S, Schroppel B, Schulte-Kemna L, Schulz E, Schumacher B, Schuster A, Schwab A, Scolari F, Scott A, Seeger W, Seeger W, Segal M, Seifert L, Seifert M, Sekiya M, Sellars R, Seman MR, Shah S, Shah S, Shainberg L, Shanmuganathan M, Shao F, Sharma K, Sharpe C, Sheikh-Ali M, Sheldon J, Shenton C, Shepherd A, Shepperd M, Sheridan R, Sheriff Z, Shibata Y, Shigehara T, Shikata K, Shimamura K, Shimano H, Shimizu Y, Shimoda H, Shin K, Shivashankar G, Shojima N, Silva R, Sim CSB, Simmons K, Sinha S, Sitter T, Sivanandam S, Skipper M, Sloan K, Sloan L, Smith R, Smyth J, Sobande T, Sobata M, Somalanka S, Song X, Sonntag F, Sood B, Sor SY, Soufer J, Sparks H, Spatoliatore G, Spinola T, Squyres S, Srivastava A, Stanfield J, Staplin N, Staylor K, Steele A, Steen O, Steffl D, Stegbauer J, Stellbrink C, Stellbrink E, Stevens W, Stevenson A, Stewart-Ray V, Stickley J, Stoffler D, Stratmann B, Streitenberger S, Strutz F, Stubbs J, Stumpf J, Suazo N, Suchinda P, Suckling R, Sudin A, Sugamori K, Sugawara H, Sugawara K, Sugimoto D, Sugiyama H, Sugiyama H, Sugiyama T, Sullivan M, Sumi M, Suresh N, Sutton D, Suzuki H, Suzuki R, Suzuki Y, Suzuki Y, Suzuki Y, Swanson E, Swift P, Syed S, Szerlip H, Taal M, Taddeo M, Tailor C, Tajima K, Takagi M, Takahashi K, Takahashi K, Takahashi M, Takahashi T, Takahira E, Takai T, Takaoka M, Takeoka J, Takesada A, Takezawa M, Talbot M, Taliercio J, Talsania T, Tamori Y, Tamura R, Tamura Y, Tan CHH, Tan EZZ, Tanabe A, Tanabe K, Tanaka A, Tanaka A, Tanaka N, Tang S, Tang Z, Tanigaki K, Tarlac M, Tatsuzawa A, Tay JF, Tay LL, Taylor J, Taylor K, Taylor K, Te A, Tenbusch L, Teng KS, Terakawa A, Terry J, Tham ZD, Tholl S, Thomas G, Thong KM, Tietjen D, Timadjer A, Tindall H, Tipper S, Tobin K, Toda N, Tokuyama A, Tolibas M, Tomita A, Tomita T, Tomlinson J, Tonks L, Topf J, Topping S, Torp A, Torres A, Totaro F, Toth P, Toyonaga Y, Tripodi F, Trivedi K, Tropman E, Tschope D, Tse J, Tsuji K, Tsunekawa S, Tsunoda R, Tucky B, Tufail S, Tuffaha A, Turan E, Turner H, Turner J, Turner M, Tuttle KR, Tye YL, Tyler A, Tyler J, Uchi H, Uchida H, Uchida T, Uchida T, Udagawa T, Ueda S, Ueda Y, Ueki K, Ugni S, Ugwu E, Umeno R, Unekawa C, Uozumi K, Urquia K, Valleteau A, Valletta C, van Erp R, Vanhoy C, Varad V, Varma R, Varughese A, Vasquez P, Vasseur A, Veelken R, Velagapudi C, Verdel K, Vettoretti S, Vezzoli G, Vielhauer V, Viera R, Vilar E, Villaruel S, Vinall L, Vinathan J, Visnjic M, Voigt E, von-Eynatten M, Vourvou M, Wada J, Wada J, Wada T, Wada Y, Wakayama K, Wakita Y, Wallendszus K, Walters T, Wan Mohamad WH, Wang L, Wang W, Wang X, Wang X, Wang Y, Wanner C, Wanninayake S, Watada H, Watanabe K, Watanabe K, Watanabe M, Waterfall H, Watkins D, Watson S, Weaving L, Weber B, Webley Y, Webster A, Webster M, Weetman M, Wei W, Weihprecht H, Weiland L, Weinmann-Menke J, Weinreich T, Wendt R, Weng Y, Whalen M, Whalley G, Wheatley R, Wheeler A, Wheeler J, Whelton P, White K, Whitmore B, Whittaker S, Wiebel J, Wiley J, Wilkinson L, Willett M, Williams A, Williams E, Williams K, Williams T, Wilson A, Wilson P, Wincott L, Wines E, Winkelmann B, Winkler M, Winter-Goodwin B, Witczak J, Wittes J, Wittmann M, Wolf G, Wolf L, Wolfling R, Wong C, Wong E, Wong HS, Wong LW, Wong YH, Wonnacott A, Wood A, Wood L, Woodhouse H, Wooding N, Woodman A, Wren K, Wu J, Wu P, Xia S, Xiao H, Xiao X, Xie Y, Xu C, Xu Y, Xue H, Yahaya H, Yalamanchili H, Yamada A, Yamada N, Yamagata K, Yamaguchi M, Yamaji Y, Yamamoto A, Yamamoto S, Yamamoto S, Yamamoto T, Yamanaka A, Yamano T, Yamanouchi Y, Yamasaki N, Yamasaki Y, Yamasaki Y, Yamashita C, Yamauchi T, Yan Q, Yanagisawa E, Yang F, Yang L, Yano S, Yao S, Yao Y, Yarlagadda S, Yasuda Y, Yiu V, Yokoyama T, Yoshida S, Yoshidome E, Yoshikawa H, Young A, Young T, Yousif V, Yu H, Yu Y, Yuasa K, Yusof N, Zalunardo N, Zander B, Zani R, Zappulo F, Zayed M, Zemann B, Zettergren P, Zhang H, Zhang L, Zhang L, Zhang N, Zhang X, Zhao J, Zhao L, Zhao S, Zhao Z, Zhong H, Zhou N, Zhou S, Zhu D, Zhu L, Zhu S, Zietz M, Zippo M, Zirino F, Zulkipli FH. Impact of primary kidney disease on the effects of empagliflozin in patients with chronic kidney disease: secondary analyses of the EMPA-KIDNEY trial. Lancet Diabetes Endocrinol 2024; 12:51-60. [PMID: 38061372 DOI: 10.1016/s2213-8587(23)00322-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND The EMPA-KIDNEY trial showed that empagliflozin reduced the risk of the primary composite outcome of kidney disease progression or cardiovascular death in patients with chronic kidney disease mainly through slowing progression. We aimed to assess how effects of empagliflozin might differ by primary kidney disease across its broad population. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA). Patients were eligible if their estimated glomerular filtration rate (eGFR) was 20 to less than 45 mL/min per 1·73 m2, or 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher at screening. They were randomly assigned (1:1) to 10 mg oral empagliflozin once daily or matching placebo. Effects on kidney disease progression (defined as a sustained ≥40% eGFR decline from randomisation, end-stage kidney disease, a sustained eGFR below 10 mL/min per 1·73 m2, or death from kidney failure) were assessed using prespecified Cox models, and eGFR slope analyses used shared parameter models. Subgroup comparisons were performed by including relevant interaction terms in models. EMPA-KIDNEY is registered with ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroupings by primary kidney disease included 2057 (31·1%) participants with diabetic kidney disease, 1669 (25·3%) with glomerular disease, 1445 (21·9%) with hypertensive or renovascular disease, and 1438 (21·8%) with other or unknown causes. Kidney disease progression occurred in 384 (11·6%) of 3304 patients in the empagliflozin group and 504 (15·2%) of 3305 patients in the placebo group (hazard ratio 0·71 [95% CI 0·62-0·81]), with no evidence that the relative effect size varied significantly by primary kidney disease (pheterogeneity=0·62). The between-group difference in chronic eGFR slopes (ie, from 2 months to final follow-up) was 1·37 mL/min per 1·73 m2 per year (95% CI 1·16-1·59), representing a 50% (42-58) reduction in the rate of chronic eGFR decline. This relative effect of empagliflozin on chronic eGFR slope was similar in analyses by different primary kidney diseases, including in explorations by type of glomerular disease and diabetes (p values for heterogeneity all >0·1). INTERPRETATION In a broad range of patients with chronic kidney disease at risk of progression, including a wide range of non-diabetic causes of chronic kidney disease, empagliflozin reduced risk of kidney disease progression. Relative effect sizes were broadly similar irrespective of the cause of primary kidney disease, suggesting that SGLT2 inhibitors should be part of a standard of care to minimise risk of kidney failure in chronic kidney disease. FUNDING Boehringer Ingelheim, Eli Lilly, and UK Medical Research Council.
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Roberts NJ, Bennett A, Cheema SS. Photon spectra in NPL standard monoenergetic neutron fields. Radiat Prot Dosimetry 2023; 199:1685-1688. [PMID: 37819355 DOI: 10.1093/rpd/ncad023] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 01/12/2023] [Accepted: 01/15/2023] [Indexed: 10/13/2023]
Abstract
A High Purity Germanium (HPGe) detector has been used to measure the photon spectra in the majority of monoenergetic neutron fields produced at NPL (0.144, 0.250, 0.565, 2.0, 5.0 and 16.5 MeV). The HPGe was characterised and then modelled to produce a response matrix. The measured pulse height spectra were then unfolded to produce photon fluence spectra. The new spectra were used to improve the photon to neutron dose equivalent ratios from some earlier work at NPL with Geiger-Muller tubes and electronic personal dosemeters.
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Affiliation(s)
- N J Roberts
- National Physical Laboratory, Nuclear Metrology Group, Hampton Road, Teddington, Middx. TW11 0LW, United Kingdom
| | - A Bennett
- National Physical Laboratory, Nuclear Metrology Group, Hampton Road, Teddington, Middx. TW11 0LW, United Kingdom
| | - S S Cheema
- National Physical Laboratory, Nuclear Metrology Group, Hampton Road, Teddington, Middx. TW11 0LW, United Kingdom
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Amaya M, Yin R, Yan L, Borisevich V, Adhikari BN, Bennett A, Malagon F, Cer RZ, Bishop-Lilly KA, Dimitrov AS, Cross RW, Geisbert TW, Broder CC. A Recombinant Chimeric Cedar Virus-Based Surrogate Neutralization Assay Platform for Pathogenic Henipaviruses. Viruses 2023; 15:v15051077. [PMID: 37243163 DOI: 10.3390/v15051077] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 04/20/2023] [Accepted: 04/22/2023] [Indexed: 05/28/2023] Open
Abstract
The henipaviruses, Nipah virus (NiV), and Hendra virus (HeV) can cause fatal diseases in humans and animals, whereas Cedar virus is a nonpathogenic henipavirus. Here, using a recombinant Cedar virus (rCedV) reverse genetics platform, the fusion (F) and attachment (G) glycoprotein genes of rCedV were replaced with those of NiV-Bangladesh (NiV-B) or HeV, generating replication-competent chimeric viruses (rCedV-NiV-B and rCedV-HeV), both with and without green fluorescent protein (GFP) or luciferase protein genes. The rCedV chimeras induced a Type I interferon response and utilized only ephrin-B2 and ephrin-B3 as entry receptors compared to rCedV. The neutralizing potencies of well-characterized cross-reactive NiV/HeV F and G specific monoclonal antibodies against rCedV-NiV-B-GFP and rCedV-HeV-GFP highly correlated with measurements obtained using authentic NiV-B and HeV when tested in parallel by plaque reduction neutralization tests (PRNT). A rapid, high-throughput, and quantitative fluorescence reduction neutralization test (FRNT) using the GFP-encoding chimeras was established, and monoclonal antibody neutralization data derived by FRNT highly correlated with data derived by PRNT. The FRNT assay could also measure serum neutralization titers from henipavirus G glycoprotein immunized animals. These rCedV chimeras are an authentic henipavirus-based surrogate neutralization assay that is rapid, cost-effective, and can be utilized outside high containment.
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Affiliation(s)
- Moushimi Amaya
- Department of Microbiology and Immunology, Uniformed Services University, Bethesda, MD 20814, USA
| | - Randy Yin
- Department of Microbiology and Immunology, Uniformed Services University, Bethesda, MD 20814, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine Inc., Bethesda, MD 20814, USA
| | - Lianying Yan
- Department of Microbiology and Immunology, Uniformed Services University, Bethesda, MD 20814, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine Inc., Bethesda, MD 20814, USA
| | - Viktoriya Borisevich
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA
- Galveston National Laboratory, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Bishwo N Adhikari
- Genomics and Bioinformatics Department, Biological Defense Research Directorate, Naval Medical Research Command-Frederick, Fort Detrick, Frederick, MD 21702, USA
- Defense Threat Reduction Agency, Fort Belvoir, VA 22060, USA
| | - Andrew Bennett
- Defense Threat Reduction Agency, Fort Belvoir, VA 22060, USA
- Leidos, Inc., Reston, VA 20190, USA
| | - Francisco Malagon
- Defense Threat Reduction Agency, Fort Belvoir, VA 22060, USA
- Leidos, Inc., Reston, VA 20190, USA
| | - Regina Z Cer
- Genomics and Bioinformatics Department, Biological Defense Research Directorate, Naval Medical Research Command-Frederick, Fort Detrick, Frederick, MD 21702, USA
| | - Kimberly A Bishop-Lilly
- Genomics and Bioinformatics Department, Biological Defense Research Directorate, Naval Medical Research Command-Frederick, Fort Detrick, Frederick, MD 21702, USA
| | - Antony S Dimitrov
- Department of Microbiology and Immunology, Uniformed Services University, Bethesda, MD 20814, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine Inc., Bethesda, MD 20814, USA
| | - Robert W Cross
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA
- Galveston National Laboratory, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Thomas W Geisbert
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA
- Galveston National Laboratory, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Christopher C Broder
- Department of Microbiology and Immunology, Uniformed Services University, Bethesda, MD 20814, USA
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Ables S, Bennett A, Vanner S, Lomax A, Reed D. A272 EVIDENCE OF SEX DIFFERENCES IMPACTING PAIN SIGNALING BY LUMINAL MEDIATORS IN IRRITABLE BOWEL SYNDROME. J Can Assoc Gastroenterol 2023. [PMCID: PMC9991243 DOI: 10.1093/jcag/gwac036.272] [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: 03/09/2023] Open
Abstract
Background Irritable bowel syndrome (IBS) is more than twice as common in women and female patients report more severe abdominal pain. This suggests that sex-specific mechanisms may contribute to the pathophysiology of IBS. Many IBS patients have altered gut microbiota and luminal meditators, implicating the gut microbiota in abdominal pain. These luminal mediators can alter excitability of visceral nociceptors, thus potentially contributing to abdominal pain in IBS. Furthermore, in a subset of IBS patients a low FODMAP diet (LFD) reduces the effect of luminal mediators on pain sensing neurons. The LFD may improve abdominal pain at greater rates in women, and numerous putative mechanisms contributing to abdominal pain in IBS are susceptible to sex-specific mediators. However, it is unknown whether luminal mediators have similar effects on visceral pain signaling in both males and females. We hypothesize that luminal mediators will cause greater differences in neuronal excitability and pain signaling in female mice due to sex-specific factors. Purpose To determine whether FS from IBS patients (IBS FS) affects nociceptors from female mice more than nociceptors from male mice. Method Neurons from dorsal root ganglia from male and female mice were incubated overnight in media containing fecal supernatant (FS) from IBS patients (N=2 females) before and after the LFD, or healthy controls (HC, N=1 female and 1 male). Ratiometric Ca2+ imaging with FURA-2-AM was employed to quantify TRPV1 channel sensitization following application of capsaicin (100nM for 1 minute) as a measure of neuronal excitability. Data was analyzed using chi-squared test as well as two-way and mixed-effects model ANOVA as appropriate, followed by Sidak’s multiple comparisons test. Result(s) IBS FS caused a 177% larger Ca2+ influx in response to capsaicin compared to HC FS in female mice (p=0.0148, N=6-7 mice, neurons=43-49). In male mice, IBS FS increased Ca2+ influx by only 13% compared to HC FS (p=0.79, N=5 mice, neurons=28-35). In female mice, 117% more neurons responded to capsaicin after incubation with IBS FS versus HC FS (p=0.0004), while in male mice, only 17% more neurons responded following incubation with IBS FS (p=0.46). Finally, FS from the same IBS patients following a LFD reduced neuronal Ca2+ influx by 39% compared to IBS FS in female mice (p=0.0434, N=4-6 mice, neurons=18-49). In male mice, LFD FS reduced Ca2+ influx by 11% versus IBS FS (p=0.98, N=5 mice, neurons=28-35). Conclusion(s) Nociceptive neurons from female mice are more sensitive to the pro-nociceptive effects of FS from IBS patients, as well as a reduction of these excitatory effects following the LFD. This suggests a potential role of sex hormones in pain signaling in IBS. Disclosure of Interest None Declared
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Affiliation(s)
- S Ables
- Queen's University, Kingston, Canada
| | - A Bennett
- Queen's University, Kingston, Canada
| | - S Vanner
- Queen's University, Kingston, Canada
| | - A Lomax
- Queen's University, Kingston, Canada
| | - D Reed
- Queen's University, Kingston, Canada
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Bennett A, Baker C, Guzman-Rodriguez M, Jimenez-Vargas N, Vanner S, Reed D, Lomax A. A278 SEX DIFFERENCES IN THE EFFECT OF THE MICROBIOTA FROM IRRITABLE BOWEL SYNDROME PATIENTS ON ABDOMINAL PAIN. J Can Assoc Gastroenterol 2023. [PMCID: PMC9991273 DOI: 10.1093/jcag/gwac036.278] [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: 03/09/2023] Open
Abstract
Background Irritable bowel syndrome (IBS) is a chronic abdominal pain disorder that affects women twice as often as men. The gut microbiota has been implicated as a key player in the modulation of abdominal pain in IBS. Given this, we hypothesised that the production of pro-nociceptive mediators within the gut lumen are increased in females, and this contributes to the female predominance of IBS. Purpose Compare the effects of FS from male and female IBS patients on abdominal pain pathways and identify the impact of female mouse estrous cycle on abdominal pain. Method Fecal supernatants (FS) were perfused through murine colonic preparations while performing extracellular colonic afferent nerve recordings to measure changes in action potential frequency in response to colonic distension. Phase of estrous cycle in female mice was determined through vaginal swabs. FS from male and female IBS patients reporting low, moderate, and high levels of abdominal pain were used. Result(s) FS from female IBS patients (N=6) increased afferent nerve discharge (p < 0.05) whereas FS from male IBS patients has no effect (N=4). However, single unit analysis of nociceptive axons revealed that male IBS FS increased nociceptor activity in female mice taken during the proestrus/estrus stage (p < 0.05), but not female mice taken during the metestrus/diestrus stage or male mice. Further investigation found that IBS FS from female patients with high abdominal pain (N=6), but not patients with moderate (N=5) or low pain (N=3), increased visceral afferent nerve discharge by 70%. Single unit analysis of nociceptive axons showed that their activation was increased by almost 50% following FS perfusion from high abdominal pain patients only (p < 0.05). Histamine concentrations and proteolytic activity are increased in FS from female IBS patients with high abdominal pain compared to male IBS patients. Conclusion(s) This work suggests that luminal mediators that impact abdominal pain are increased in female IBS patients compared to male IBS patients, and females appear to be more sensitive to their pro-nociceptive effects. Together, these sex differences may contribute to the female predominance of IBS. Disclosure of Interest None Declared
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Affiliation(s)
- A Bennett
- Department of Biomedical and Molecular Sciences
| | - C Baker
- Department of Biomedical and Molecular Sciences
| | | | | | - S Vanner
- Department of Medicine, Queen's University, Kingston, Canada
| | - D Reed
- Department of Medicine, Queen's University, Kingston, Canada
| | - A Lomax
- Department of Biomedical and Molecular Sciences
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McPhail S, Steed D, Holdsworth D, Nicol E, Bennett A, Phillips S. Development, design and experience of the UK Military's return to diving pathway following SARS-CoV-2 infection. BMJ Mil Health 2022:e002327. [PMID: 36581498 DOI: 10.1136/military-2022-002327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 12/12/2022] [Indexed: 12/31/2022]
Abstract
After the emergence of the SARS-CoV-2 virus in early 2020, it quickly became clear that symptomatic or asymptomatic infection had the potential to negatively impact on an individual's fitness to dive through effects on the respiratory, cardiovascular or neurological systems. The significance of these effects in the military diving environment was initially unclear due to an absence of data concerning incidence, chronology or severity. In order to safely return divers to the water and maintain operational capability, the UK Military developed a pathway for SARS-CoV-2 positive divers that stratified risk of sequelae and extent of required clinical investigation, while minimising reliance on viral testing and hospital-based investigations. We present this process, provide rationale and support for its design and detail the number of SARS-CoV-2 positive divers who have been returned to full diving fitness following infection of varying degrees of severity.
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Affiliation(s)
- Stuart McPhail
- Underwater Medicine Division, Institute of Naval Medicine, Alverstoke, UK
- Department of Anaesthesia, University Hospitals Plymouth NHS Trust, Plymouth, Devon, UK
| | - D Steed
- Underwater Medicine Division, Institute of Naval Medicine, Alverstoke, UK
| | - D Holdsworth
- Academic Department of Military Medicine, Royal Centre for Defence Medicine (Research and Clinical Innovation), Birmingham, UK
- Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - E Nicol
- Royal Brompton Hospital, London, UK
- King's College London School of Biomedical Engineering and Imaging Sciences, London, UK
| | - A Bennett
- Academic Department of Military Rehabilitation, Defence Medical Rehabilitation Centre Headley Court, Epsom, UK
- National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, UK
| | - S Phillips
- Underwater Medicine Division, Institute of Naval Medicine, Alverstoke, UK
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Montalvo S, Bennett A, All S, Lue B, Kakadiaris E, Westover K, Iyengar P, Lu W, Gu X, Munshi N, Zaha V, Dianels J, Link M, Alluri P. Association between Thoracic Radiation and Heart Rhythm Disorders: Toward a Model for Describing Long-Term Cardiac Risk from Radiotherapy. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.430] [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: 11/17/2022]
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Noblet T, Jadhakhan F, Bennett A, McCrum C, O'Shea S, Hensman-Crook A, Barratt P, Regan P, Ronan L, Baker D, Rushton A. A multi-site prospective, observational study of physiotherapist independent prescribing activity across musculoskeletal clinics in the United Kingdom. Musculoskelet Sci Pract 2022; 61:102616. [PMID: 35785573 DOI: 10.1016/j.msksp.2022.102616] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 06/10/2022] [Accepted: 06/24/2022] [Indexed: 10/17/2022]
Abstract
OBJECTIVE To establish how advanced practice physiotherapists in the UK working in the musculoskeletal specialty are utilising their independent non-medical prescribing skills. DESIGN Multi-site, prospective, descriptive observational study. Ethics reference No: ERN_19-0994). METHOD The study was conducted by seven advanced practitioners, across seven clinical sites representative of advanced musculoskeletal practice in the UK, between 1st October 2019-March 31, 2020. Advanced physiotherapy practitioner independent prescribers working in a variety of musculoskeletal specialty areas collected data across 5 contexts of musculoskeletal clinical service: first contact practice, primary care, community triage, secondary care orthopaedics, secondary care rheumatology and private practice. Quantitative data were analysed descriptively with qualitative data analysed/synthesised via thematic analysis. RESULTS Prescribing activity data for n = 2470 patients were collected. Prescribing activity was highest for the treatment of nociceptive pain (51.3%) and inflammation (39.6%). Most prescribing activity occurred in the first 2-6 weeks (34.1%) following onset of condition. Medicines optimisation accounted for most of prescribing activity (18.1%), followed by over-the-counter medication recommendation (15.5%). De-prescribing accounted for 10.8% of all prescribing activity recorded. Qualitative data were synthesised into 4 themes: multimodal physiotherapeutic approach, joint decision making and patient choice, working with complexity, and legal and regulatory restriction. CONCLUSIONS Physiotherapist independent prescribing was used within all health sectors in conjunction with advanced skills in musculoskeletal physiotherapy as part of a multimodal physiotherapeutic approach. Prescribing activity was dictated by the clinicians' clinical reasoning and use of joint decision-making. Prescribing activity for acute back and neuropathic radicular pain was limited secondary to recent reclassification of gabapentin and pregabalin.
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Affiliation(s)
- Tim Noblet
- St George's University Hospitals NHS Foundation Trust, Blackshaw Rd, London, SW17 0QT, UK.
| | - Feroz Jadhakhan
- School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Andrew Bennett
- Sutton Health and Care Alliance, Epsom and St Helier NHS Trust, Outpatient Physiotherapy Department, Fergerson House, St Helier Hospital, Wrythe Lane, SM5 1AA, UK; NHS England and NHS Improvement, 22 London Road, Elephant and Castle, London, SE1 6JW, UK
| | - Carol McCrum
- East Sussex Healthcare NHS Trust, Kings Drive, Eastbourne, BN21 2UD, UK; University of Brighton, Darley Road, Eastbourne, BN20 7UR, UK
| | - Simon O'Shea
- Sheffield Teaching Hospitals NHS Foundation Trust, Graves Move Moore Health and Sports Centre, Bochum Parkway, Sheffield, S8 8JR, UK
| | | | - Paul Barratt
- Salford Royal NHS Foundation Trust, Stott Lane, Salford, M6 8HD, UK
| | - Paul Regan
- Salford Royal NHS Foundation Trust, Stott Lane, Salford, M6 8HD, UK
| | - Lynne Ronan
- Salford Royal NHS Foundation Trust, Stott Lane, Salford, M6 8HD, UK
| | - Dave Baker
- Complete Physio, The Bankside Fitness Hub, Blue Fin Building, 110 Southwark St, London, SE1 0SU, UK
| | - Alison Rushton
- School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK; School of Physical Therapy Western University London, Ontario, N6G 1H1, Canada
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11
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Muir A, Heyes S, Morgan J, Hoebee S, Enright N, Whelan R, Geschke A, Bennett A, Walsh S, Weatherly W, Milne R. Conservation challenges for Victorian Banksias: Workshop May 2020. Eco Management Restoration 2022. [DOI: 10.1111/emr.12448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Noblet T, Jadhakhanb F, Bennett A, McCrum C, O'Shea S, Crook AH, Barratt P, Regan P, Ronan L, Baker D, Rushton A. A multi-site prospective, observational study of physiotherapist independent prescribing activity in musculoskeletal clinics across seven healthcare locations in England. Physiotherapy 2022. [DOI: 10.1016/j.physio.2021.12.270] [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]
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13
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Bennett A. Investigating Novel Genetic Markers for Fluoroquinolone Associated Disorders. Cancer Treat Res 2022; 184:161-166. [PMID: 36449196 DOI: 10.1007/978-3-031-04402-1_12] [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] [Indexed: 06/17/2023]
Abstract
Fluoroquinolones (FQs) are among the most commonly prescribed class of antibiotics and have regulatory approval to treat anthrax, pneumonia, unitary tract infections, and sinus infection among other uses.
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Affiliation(s)
- Andrew Bennett
- SONAR (Southern Network on Adverse Reactions) Program, University of South Carolina College of Pharmacy, Columbia, SC, 29208, USA.
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14
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Bennett CL, Champigneulle O, Bennett A, Witherspoon B, Bove C. Fluoroquinolone-Associated Disability and Other Fluoroquinolone-Associated Serious Adverse Events: Unexpected Toxicities Have Emerged in Recent Years. Cancer Treat Res 2022; 184:1-39. [PMID: 36449185 DOI: 10.1007/978-3-031-04402-1_1] [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] [Indexed: 06/17/2023]
Abstract
This study describes cases of individuals who report adverse events following consumption of the most commonly prescribed fluoroquinolone (FQ) antibiotics: ciprofloxacin, levofloxacin, or moxifloxacin. Fluoroquinolone (FQ) antibiotics are some of the most widely prescribed antibiotics in the world. Although these antibiotics have been on the market for more than 20 years, a wide range of serious FQ-associated adverse events first became apparent in 2006 and continued to be recognized for the next 15 years.
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Affiliation(s)
- Charles L Bennett
- SONAR (Southern Network on Adverse Reactions) Program, University of South Carolina College of Pharmacy, Columbia, SC, 29208, USA
| | - Oscar Champigneulle
- SONAR (Southern Network on Adverse Reactions) Program, University of South Carolina College of Pharmacy, Columbia, SC, 29208, USA
| | - Andrew Bennett
- SONAR (Southern Network on Adverse Reactions) Program, University of South Carolina College of Pharmacy, Columbia, SC, 29208, USA
| | - Bartlett Witherspoon
- SONAR (Southern Network on Adverse Reactions) Program, University of South Carolina College of Pharmacy, Columbia, SC, 29208, USA
| | - Cecilia Bove
- York College of Pennsylvania, York, PA, 17403, USA.
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15
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Gutierrez-Reyes CD, Jiang P, Atashi M, Bennett A, Yu A, Peng W, Zhong J, Mechref Y. Advances in mass spectrometry-based glycoproteomics: An update covering the period 2017-2021. Electrophoresis 2021; 43:370-387. [PMID: 34614238 DOI: 10.1002/elps.202100188] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [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: 06/21/2021] [Revised: 08/30/2021] [Accepted: 09/25/2021] [Indexed: 12/23/2022]
Abstract
Protein glycosylation is one of the most common posttranslational modifications, and plays an essential role in a wide range of biological processes such as immune response, intercellular signaling, inflammation, host-pathogen interaction, and protein stability. Glycoproteomics is a proteomics subfield dedicated to identifying and characterizing the glycans and glycoproteins in a given cell or tissue. Aberrant glycosylation has been associated with various diseases such as Alzheimer's disease, viral infections, inflammation, immune deficiencies, congenital disorders, and cancers. However, glycoproteomic analysis remains challenging because of the low abundance, site-specific heterogeneity, and poor ionization efficiency of glycopeptides during LC-MS analyses. Therefore, the development of sensitive and accurate approaches to efficiently characterize protein glycosylation is crucial. Methods such as metabolic labeling, enrichment, and derivatization of glycopeptides, coupled with different mass spectrometry techniques and bioinformatics tools, have been developed to achieve sophisticated levels of quantitative and qualitative analyses of glycoproteins. This review attempts to update the recent developments in the field of glycoproteomics reported between 2017 and 2021.
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Affiliation(s)
| | - Peilin Jiang
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, USA
| | - Mojgan Atashi
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, USA
| | - Andrew Bennett
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, USA
| | - Aiying Yu
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, USA
| | - Wenjing Peng
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, USA
| | - Jieqiang Zhong
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, USA
| | - Yehia Mechref
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, USA
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16
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Jalanka J, Lam C, Bennett A, Hartikainen A, Crispie F, Finnegan LA, Cotter PD, Spiller R. Colonic Gene Expression and Fecal Microbiota in Diarrhea-predominant Irritable Bowel Syndrome: Increased Toll-like Receptor 4 but Minimal Inflammation and no Response to Mesalazine. J Neurogastroenterol Motil 2021; 27:279-291. [PMID: 33795545 PMCID: PMC8026366 DOI: 10.5056/jnm20205] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 10/23/2020] [Accepted: 11/09/2020] [Indexed: 12/13/2022] Open
Abstract
Background/Aims Diarrhea-predominant irritable bowel syndrome (IBS-D) has been previously associated with evidence of immune activation and altered microbiota. Our aim is to assess the effect of the anti-inflammatory agent, mesalazine, on inflammatory gene expression and microbiota composition in IBS-D. Methods We studied a subset of patients (n = 43) from a previously published 12-week radomized placebo-controlled trial of mesalazine. Mucosal biopsies were assessed by immunohistochemistry and reverse transcription-polymerase chain reaction for a range of markers of inflammation, altered permeability, and sensory receptors including Toll-like receptors (TLRs) at randomization after treatment. All biopsy data were compared to 21 healthy controls. Patient’s stool microbiota composition was analysed through 16S ribosomal RNA sequencing. Results We found no evidence of increased immune activation compared to healthy controls. However, we did find increased expression of receptors in both sensory pathways and innate immune response including TLR4. Higher TLR4 expression was associated with greater urgency. TLR4 expression correlated strongly with the expression of the receptors bradykinin receptor B2, chemerin chemokine-like receptor 1, and transient receptor potential cation channel, subfamily A, member 1 as well as TLR4’s downstream adaptor myeloid differentiation factor 88. Mesalazine had minimal effect on either gene expression or microbiota composition. Conclusions Biopsies from a well-characterized IBS-D cohort showed no substantial inflammation. Mesalazine has little effect on gene expression and its previous reported effect on fecal microbiota associated with much greater inflammation found in inflammatory bowel diseases is likely secondary to reduced inflammation. Increased expression of TLR4 and correlated receptors in IBS may mediate a general increase in sensitivity to external stimuli, particularly those that signal via the TLR system.
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Affiliation(s)
- Jonna Jalanka
- Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland.,Nottingham Digestive Diseases Center and NIHR Nottingham Biomedical Research Center at Nottingham University Hospitals NHS Trust, the University of Nottingham, Nottingham, Notts, UK
| | - Ching Lam
- Nottingham Digestive Diseases Center and NIHR Nottingham Biomedical Research Center at Nottingham University Hospitals NHS Trust, the University of Nottingham, Nottingham, Notts, UK
| | - Andrew Bennett
- Nottingham Digestive Diseases Center and NIHR Nottingham Biomedical Research Center at Nottingham University Hospitals NHS Trust, the University of Nottingham, Nottingham, Notts, UK.,FRAME Alternatives Laboratory, School of Life Sciences, University of Nottingham, Medical School, QMC, Nottingham, Notts, UK
| | - Anna Hartikainen
- Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Fiona Crispie
- Teagasc Food Research Center, Moorepark, Fermoy, Co. Cork, Ireland.,APC Microbiome Ireland, Cork, Ireland
| | - Laura A Finnegan
- Teagasc Food Research Center, Moorepark, Fermoy, Co. Cork, Ireland.,APC Microbiome Ireland, Cork, Ireland
| | - Paul D Cotter
- Teagasc Food Research Center, Moorepark, Fermoy, Co. Cork, Ireland.,APC Microbiome Ireland, Cork, Ireland
| | - Robin Spiller
- Nottingham Digestive Diseases Center and NIHR Nottingham Biomedical Research Center at Nottingham University Hospitals NHS Trust, the University of Nottingham, Nottingham, Notts, UK
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17
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Nguyen A, Chung B, Besser S, Bennett A, Rodgers D, Kim G, Pinney S, Uriel N, Aronsohn A. Providers and Patients Differ in Their Opinions on Travel for Organ Transplantation. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.652] [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: 10/21/2022] Open
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18
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Dela Cruz M, Littmann E, Nayak R, Lehmann C, Keskey R, Baker T, Lin H, Bennett A, Kim G, Pinney S, Pamer E, Nguyen A. The Gut Microbiome in Heart Transplantation: A Prospective Pilot Study. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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19
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Moore G, Rickard H, Stevenson D, Aranega-Bou P, Pitman J, Crook A, Davies K, Spencer A, Burton C, Easterbrook L, Love HE, Summers S, Welch SR, Wand N, Thompson KA, Pottage T, Richards KS, Dunning J, Bennett A. Detection of SARS-CoV-2 within the healthcare environment: a multi-centre study conducted during the first wave of the COVID-19 outbreak in England. J Hosp Infect 2021; 108:189-196. [PMID: 33259882 PMCID: PMC7831847 DOI: 10.1016/j.jhin.2020.11.024] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [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: 10/01/2020] [Revised: 11/25/2020] [Accepted: 11/25/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Understanding how severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is spread within the hospital setting is essential in order to protect staff, implement effective infection control measures, and prevent nosocomial transmission. METHODS The presence of SARS-CoV-2 in the air and on environmental surfaces around hospitalized patients, with and without respiratory symptoms, was investigated. Environmental sampling was undertaken within eight hospitals in England during the first wave of the coronavirus disease 2019 outbreak. Samples were analysed using reverse transcription polymerase chain reaction (PCR) and virus isolation assays. FINDINGS SARS-CoV-2 RNA was detected on 30 (8.9%) of 336 environmental surfaces. Cycle threshold values ranged from 28.8 to 39.1, equating to 2.2 x 105 to 59 genomic copies/swab. Concomitant bacterial counts were low, suggesting that the cleaning performed by nursing and domestic staff across all eight hospitals was effective. SARS-CoV-2 RNA was detected in four of 55 air samples taken <1 m from four different patients. In all cases, the concentration of viral RNA was low and ranged from <10 to 460 genomic copies/m3 air. Infectious virus was not recovered from any of the PCR-positive samples analysed. CONCLUSIONS Effective cleaning can reduce the risk of fomite (contact) transmission, but some surface types may facilitate the survival, persistence and/or dispersal of SARS-CoV-2. The presence of low or undetectable concentrations of viral RNA in the air supports current guidance on the use of specific personal protective equipment for aerosol-generating and non-aerosol-generating procedures.
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Affiliation(s)
- G Moore
- National Infection Service, Public Health England, Porton Down, Salisbury, UK.
| | - H Rickard
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | - D Stevenson
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | - P Aranega-Bou
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | - J Pitman
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | - A Crook
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | - K Davies
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | - A Spencer
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | - C Burton
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | - L Easterbrook
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | - H E Love
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | - S Summers
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | - S R Welch
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | - N Wand
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | - K-A Thompson
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | - T Pottage
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | - K S Richards
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | - J Dunning
- Emerging Infections and Zoonoses Unit, National Infection Service, Public Health England, Colindale, London, UK; NIHR Health Protection Research Unit in Emerging Infections and Zoonoses, Liverpool, UK
| | - A Bennett
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
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20
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Meesawatsom P, Hathway G, Bennett A, Constantin-Teodosiu D, Chapman V. Spinal neuronal excitability and neuroinflammation in a model of chemotherapeutic neuropathic pain: targeting the resolution pathways. J Neuroinflammation 2020; 17:316. [PMID: 33097087 PMCID: PMC7585293 DOI: 10.1186/s12974-020-01997-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 07/25/2020] [Accepted: 10/14/2020] [Indexed: 12/13/2022] Open
Abstract
Background Neuroinflammation is a critical feature of sensitisation of spinal nociceptive processing in chronic pain states. We hypothesised that the resolvin pathways, a unique endogenous control system, may ameliorate aberrant spinal processing of somatosensory inputs associated with chemotherapy-induced neuropathic pain (CINP). Method The paclitaxel (PCX) model of CINP was established in male Sprague-Dawley rats and compared to control rats (n = 23 and 22, respectively). Behavioural pain responses were measured, and either single unit electrophysiological recordings of dorsal horn wide dynamic range (WDR) neurones were performed, or mRNA microarray analysis of the dorsal horn of the spinal cord was undertaken. Results PCX rats exhibited significant changes in behavioural responses to mechanical and cold stimuli. A higher proportion of WDR neurones in PCX rats were polymodal (generating post-discharge following a non-noxious mechanical stimulus, responding to non-noxious cold and exhibiting spontaneous activity) compared to control (p < 0.05). Microarray analysis revealed changes in proinflammatory pathways (Tlr, Tnfrsf1a, Nlrp1a, Cxcr1, Cxcr5, Ccr1, Cx3cr1) and anti-inflammatory lipid resolvin pathways (Alox5ap, Cyp2j4 and Ptgr1) compared to control (p < 0.05). Ingenuity pathway analysis predicted changes in glutamatergic and astrocyte signaling in the PCX group. Activation of the resolvin system via the spinal administration of aspirin-triggered resolvin D1 (AT-RvD1) markedly inhibited (73 ± 7% inhibition) normally non-noxious mechanically (8 g) evoked responses of WDR neurones only in PCX rats, whilst leaving responses to noxious mechanically induced stimuli intact. Inhibitory effects of AT-RvD1were comparable in magnitude to spinal morphine (84 ± 4% inhibition). Conclusion The PCX model of CINP was associated with mechanical allodynia, altered neuronal responses and dysregulation of pro- and anti-inflammatory signalling in the spinal dorsal horn. The resolvin AT-RvD1 selectively inhibited low weight mechanical-evoked responses of WDR neurones in PCX rats, but not in controls. Our data support the targeting of spinal neuroinflammation via the activation of the resolvin system as a new therapeutic approach for CINP.
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Affiliation(s)
- Pongsatorn Meesawatsom
- Pain Centre Versus Arthritis, School of Life Sciences, Medical School, University of Nottingham, Nottingham, NG7 2UH, UK.,Department of Pharmacology, Faculty of Pharmacy, Mahidol University, Rajathevi, Bangkok, 10400, Thailand
| | - Gareth Hathway
- Pain Centre Versus Arthritis, School of Life Sciences, Medical School, University of Nottingham, Nottingham, NG7 2UH, UK
| | - Andrew Bennett
- FRAME Alternatives Laboratory, School of Life Sciences, Medical School, University of Nottingham, Nottingham, NG7 2UH, UK
| | - Dumitru Constantin-Teodosiu
- MRC/ARUK Centre for Musculoskeletal Ageing Research, School of Life Sciences, Medical School, University of Nottingham, Nottingham, NG7 2UH, UK
| | - Victoria Chapman
- Pain Centre Versus Arthritis, School of Life Sciences, Medical School, University of Nottingham, Nottingham, NG7 2UH, UK.
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21
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Upadhyay U, McCook A, Bennett A, Cartwright A, Roberts S. P16 State abortion policies and ability to obtain an abortion. Contraception 2020. [DOI: 10.1016/j.contraception.2020.07.035] [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: 11/24/2022]
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22
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Wilkins S, Oliva K, Chowdhury E, Ruggiero B, Bennett A, Andrews EJ, Dent O, Chapuis P, Platell C, Reid CM, McMurrick PJ. Australasian ACPGBI risk prediction model for 30-day mortality after colorectal cancer surgery. BJS Open 2020; 4:1208-1216. [PMID: 32985127 PMCID: PMC7709373 DOI: 10.1002/bjs5.50356] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 07/08/2020] [Accepted: 08/18/2020] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Postoperative mortality after colorectal cancer surgery varies across hospitals and countries. The aim of this study was to test the Association of Coloproctologists of Great Britain and Ireland (ACPGBI) models as predictors of 30-day mortality in an Australian cohort. METHODS Data from patients who underwent surgery in six hospitals between 1996 and 2015 (CRC data set) were reviewed to test ACPGBI models, and patients from 79 hospitals in the Bi-National Colorectal Cancer Audit between 2007 and 2016 (BCCA data set) were analysed to validate model performance. Recalibrated models based on ACPGBI risk models were developed, tested and validated on a data set of Australasian patients. RESULTS Of 18 752 patients observed during the study, 6727 (CRC data set) and 3814 (BCCA data set) were analysed. The 30-day mortality rate was 1·1 and 3·5 per cent in the CRC and BCCA data sets respectively. Both the original and revised ACPGBI models overestimated 30-day mortality for the CRC data set (observed to expected (O/E) ratio 0·17 and 0·21 respectively). Their ability to correctly predict mortality risk was poor (P < 0·001, Hosmer-Lemeshow test); however, the area under the curve for both models was 0·88 (95 per cent c.i. 0·85 to 0·92) showing good discriminatory power to classify 30-day mortality. The recalibrated original model performed well for calibration and discrimination, whereas the recalibrated revised model performed well for discrimination but not for calibration. Risk prediction was good for both recalibrated models. On external validation using the BCCA data set, the recalibrated models underestimated mortality risk (O/E ratio 3·06 and 2·98 respectively), whereas both original and revised ACPGBI models overestimated the risk (O/E ratio 0·48 and 0·69). All models showed similar good discrimination. CONCLUSION The original and revised ACPGBI models overpredicted risk of 30-day mortality. The new Australasian calibrated ACPGBI model needs to be tested further in clinical practice.
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Affiliation(s)
- S. Wilkins
- Cabrini Monash University Department of SurgeryMalvernVictoria
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive MedicineMonash UniversityMelbourneVictoria
| | - K. Oliva
- Cabrini Monash University Department of SurgeryMalvernVictoria
| | - E. Chowdhury
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive MedicineMonash UniversityMelbourneVictoria
- School of Public HealthCurtin UniversityPerthWestern Australia
| | - B. Ruggiero
- Cabrini Monash University Department of SurgeryMalvernVictoria
| | - A. Bennett
- Department of AnaesthesiaCabrini HospitalMalvernVictoria
| | - E. J. Andrews
- Department of SurgeryCork University HospitalCorkIreland
| | - O. Dent
- Department of Colorectal SurgeryConcord HospitalSydneyNew South WalesAustralia
- Discipline of Surgery, Sydney Medical SchoolUniversity of SydneySydneyNew South WalesAustralia
| | - P. Chapuis
- Department of Colorectal SurgeryConcord HospitalSydneyNew South WalesAustralia
- Discipline of Surgery, Sydney Medical SchoolUniversity of SydneySydneyNew South WalesAustralia
- Bi‐National Colorectal Cancer AuditCorkIreland
| | - C. Platell
- Colorectal Surgical UnitSt John of God Subiaco Hospital, University of Western AustraliaPerthWestern Australia
- Bi‐National Colorectal Cancer AuditCorkIreland
| | - C. M. Reid
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive MedicineMonash UniversityMelbourneVictoria
- School of Public HealthCurtin UniversityPerthWestern Australia
- Bi‐National Colorectal Cancer AuditCorkIreland
| | - P. J. McMurrick
- Cabrini Monash University Department of SurgeryMalvernVictoria
- Bi‐National Colorectal Cancer AuditCorkIreland
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23
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Hannaway N, Jiang X, Aspray T, Burns A, Ferguson J, Pedley I, Frew J, Azzabi A, Pearson R, Chandler R, Hughes A, Showler H, Bennett A, McMenemin R. 673P Assessing bone health and osteoporotic risk in patients requiring anti androgen therapy for prostate cancer. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.932] [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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24
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Goodridge D, Bandara T, Marciniuk D, Hutchinson S, Crossman L, Kachur B, Higgins D, Bennett A. Promoting chronic disease management in persons with complex social needs: A qualitative descriptive study. Chron Respir Dis 2020; 16:1479973119832025. [PMID: 30836794 PMCID: PMC6402059 DOI: 10.1177/1479973119832025] [Citation(s) in RCA: 10] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
While there are both ethical and practical imperatives to address health inequity issues related to chronic disease management for persons with social complexity, existing programs often do not appropriately address the needs of these individuals. This leads to low levels of participation in programs, suboptimal chronic disease management, and higher health-care utilization. The aims of this project were to describe the challenges related to availability, accessibility, and acceptability faced by socially complex patients with Chronic Obstructive Pulmonary Disease (COPD) who were eligible, but declined enrollment in a traditional Chronic Disease Management Program (CDMP). Using a qualitative descriptive study approach informed by a health equity lens, interviews with participants, managers, and a focus group with providers were used to gather data addressing the above aims. Qualitative data were analyzed using Braun and Clarke’s theoretical thematic analysis approach. The ability of participants to manage chronic disease was profoundly influenced by contextual and personal factors, such as poverty, disability, personal attitudes and beliefs (including shame, mistrust, and hopelessness), and barriers inherent in the organization of the health-care system. The existing chronic disease management program did not adequately address the most critical needs of socially complex patients. Challenges with accessibility and acceptability of chronic disease management and health services played important roles in the ways these socially complex participants managed their chronic illness. The individualistic approach to self-management of chronic illness inherent in conventional CDMP can be poorly aligned with the needs, capacity, and circumstances of many socially complex patients. Innovative models of care that promote incremental and guided approaches to enhancing health and improving self-efficacy need further development and evaluation.
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Affiliation(s)
- Donna Goodridge
- 1 College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Thilina Bandara
- 1 College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Darcy Marciniuk
- 1 College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Shelly Hutchinson
- 2 Chronic Disease Management Program, Saskatchewan Health Authority, Saskatoon, Saskatchewan, Canada
| | - Lois Crossman
- 2 Chronic Disease Management Program, Saskatchewan Health Authority, Saskatoon, Saskatchewan, Canada
| | - Brittany Kachur
- 2 Chronic Disease Management Program, Saskatchewan Health Authority, Saskatoon, Saskatchewan, Canada
| | - Dana Higgins
- 2 Chronic Disease Management Program, Saskatchewan Health Authority, Saskatoon, Saskatchewan, Canada
| | - Andrew Bennett
- 1 College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
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Jones R, Pabla P, Mallinson J, Nixon A, Taylor T, Bennett A, Tsintzas K. Two weeks of early time-restricted feeding (eTRF) improves skeletal muscle insulin and anabolic sensitivity in healthy men. Am J Clin Nutr 2020; 112:1015-1028. [PMID: 32729615 PMCID: PMC7528549 DOI: 10.1093/ajcn/nqaa192] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [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: 11/20/2019] [Accepted: 06/22/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Altering the temporal distribution of energy intake (EI) and introducing periods of intermittent fasting (IF) exert important metabolic effects. Restricting EI to earlier in the day [early time-restricted feeding (eTRF)] is a novel type of IF. OBJECTIVES We assessed the chronic effects of eTRF compared with an energy-matched control on whole-body and skeletal muscle insulin and anabolic sensitivity. METHODS Sixteen healthy males (aged 23 ± 1 y; BMI 24.0 ± 0.6 kg·m-2) were assigned to 2 groups that underwent either 2 wk of eTRF (n = 8) or control/caloric restriction (CON:CR; n = 8) diet. The eTRF diet was consumed ad libitum and the intervention was conducted before the CON:CR, in which the diet was provided to match the reduction in EI and body weight observed in eTRF. During eTRF, daily EI was restricted to between 08:00 and 16:00, which prolonged the overnight fast by ∼5 h. The metabolic responses to a carbohydrate/protein drink were assessed pre- and post-interventions following a 12-h overnight fast. RESULTS When compared with CON:CR, eTRF improved whole-body insulin sensitivity [between-group difference (95% CI): 1.89 (0.18, 3.60); P = 0.03; η2p = 0.29] and skeletal muscle uptake of glucose [between-group difference (95% CI): 4266 (261, 8270) μmol·min-1·kg-1·180 min; P = 0.04; η2p = 0.31] and branched-chain amino acids (BCAAs) [between-group difference (95% CI): 266 (77, 455) nmol·min-1·kg-1·180 min; P = 0.01; η2p = 0.44]. eTRF caused a reduction in EI (∼400 kcal·d-1) and weight loss (-1.04 ± 0.25 kg; P = 0.01) that was matched in CON:CR (-1.24 ± 0.35 kg; P = 0.01). CONCLUSIONS Under free-living conditions, eTRF improves whole-body insulin sensitivity and increases skeletal muscle glucose and BCAA uptake. The metabolic benefits of eTRF are independent of its effects on weight loss and represent chronic adaptations rather than the effect of the last bout of overnight fast. This trial was registered at clinicaltrials.gov as NCT03969745.
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Affiliation(s)
- Robert Jones
- MRC Versus Arthritis Centre for Musculoskeletal Ageing Research, School of Life Sciences, University of Nottingham Medical School, Nottingham, United Kingdom
| | - Pardeep Pabla
- MRC Versus Arthritis Centre for Musculoskeletal Ageing Research, School of Life Sciences, University of Nottingham Medical School, Nottingham, United Kingdom
| | - Joanne Mallinson
- MRC Versus Arthritis Centre for Musculoskeletal Ageing Research, School of Life Sciences, University of Nottingham Medical School, Nottingham, United Kingdom
| | - Aline Nixon
- MRC Versus Arthritis Centre for Musculoskeletal Ageing Research, School of Life Sciences, University of Nottingham Medical School, Nottingham, United Kingdom
| | - Tariq Taylor
- MRC Versus Arthritis Centre for Musculoskeletal Ageing Research, School of Life Sciences, University of Nottingham Medical School, Nottingham, United Kingdom
| | - Andrew Bennett
- School of Life Sciences, University of Nottingham Medical School, Nottingham, United Kingdom
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Bennett A, Barrera E, Namballa H, Harding W, Ranaldi R. (-)-Stepholidine blocks expression, but not development, of cocaine conditioned place preference in rats. Neurosci Lett 2020; 734:135151. [PMID: 32531529 DOI: 10.1016/j.neulet.2020.135151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 04/24/2020] [Revised: 06/06/2020] [Accepted: 06/08/2020] [Indexed: 01/08/2023]
Abstract
The purpose of this study was to investigate the effects of (-)-stepholidine (SPD), a compound with dopamine D1 partial agonist and D2/D3 antagonist properties, on the development and expression of cocaine conditioned place preference (CPP). Subjects (N = 65; male Long Evans rats) were tested using a CPP procedure consisting of 3 phases: (1) a 15-min pre-exposure session where animals could explore each compartment freely, (2) eight 30-min conditioning sessions where animals were restricted to one side or the other with cocaine (10 mg/kg) or saline, respectively, on alternating days and (3) a 15-minute preference test session where animals could explore each compartment freely. To test the effects of SPD on expression of cocaine CPP, rats were administered vehicle (distilled water with 20 % DMSO), 10, 15 or 20 mg/kg SPD (intraperitoneally) 30 min prior to the test session. We found that 20 mg/kg of SPD significantly blocked the expression of cocaine CPP. To test the effects of SPD on the development of CPP, 0 (vehicle), 10, 15 or 20mg/kg SPD were administered 30 min prior to each cocaine conditioning session and vehicle before each saline conditioning session; no treatment was given prior to the test session. A preference test showed that each SPD group maintained a CPP similar to the vehicle group. These data indicate that SPD can block the expression of a cocaine CPP but has no effect on its development, suggesting that it inhibits the effects of cocaine cues on cocaine incentive motivated behavior. These results suggest that SPD may be a potential treatment for cue-driven aspects of cocaine use disorder.
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Affiliation(s)
- A Bennett
- Queens College of the City University of New York, Department of Psychology, USA
| | - E Barrera
- Queens College of the City University of New York, Department of Psychology, USA
| | - H Namballa
- Hunter College of the City University of New York, Department of Chemistry, USA; CUNY Graduate Center, 365 5thAvenue, New York, NY 10016, USA; CUNY Graduate Center, 365 5thAvenue, New York, NY 10016, USA
| | - W Harding
- Hunter College of the City University of New York, Department of Chemistry, USA; CUNY Graduate Center, 365 5thAvenue, New York, NY 10016, USA; CUNY Graduate Center, 365 5thAvenue, New York, NY 10016, USA
| | - R Ranaldi
- Queens College of the City University of New York, Department of Psychology, USA; CUNY Graduate Center, 365 5thAvenue, New York, NY 10016, USA.
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Al Amir Dache Z, Otandault A, Tanos R, Pastor B, Meddeb R, Sanchez C, Arena G, Lasorsa L, Bennett A, Grange T, El Messaoudi S, Mazard T, Prevostel C, Thierry AR. Blood contains circulating cell-free respiratory competent mitochondria. FASEB J 2020; 34:3616-3630. [PMID: 31957088 DOI: 10.1096/fj.201901917rr] [Citation(s) in RCA: 220] [Impact Index Per Article: 55.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 11/27/2019] [Accepted: 11/29/2019] [Indexed: 11/11/2022]
Abstract
Mitochondria are considered as the power-generating units of the cell due to their key role in energy metabolism and cell signaling. However, mitochondrial components could be found in the extracellular space, as fragments or encapsulated in vesicles. In addition, this intact organelle has been recently reported to be released by platelets exclusively in specific conditions. Here, we demonstrate for the first time, that blood preparation with resting platelets, contains whole functional mitochondria in normal physiological state. Likewise, we show, that normal and tumor cultured cells are able to secrete their mitochondria. Using serial centrifugation or filtration followed by polymerase chain reaction-based methods, and Whole Genome Sequencing, we detect extracellular full-length mitochondrial DNA in particles over 0.22 µm holding specific mitochondrial membrane proteins. We identify these particles as intact cell-free mitochondria using fluorescence-activated cell sorting analysis, fluorescence microscopy, and transmission electron microscopy. Oxygen consumption analysis revealed that these mitochondria are respiratory competent. In view of previously described mitochondrial potential in intercellular transfer, this discovery could greatly widen the scope of cell-cell communication biology. Further steps should be developed to investigate the potential role of mitochondria as a signaling organelle outside the cell and to determine whether these circulating units could be relevant for early detection and prognosis of various diseases.
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Affiliation(s)
- Zahra Al Amir Dache
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM U1194, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, France
| | - Amaëlle Otandault
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM U1194, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, France
| | - Rita Tanos
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM U1194, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, France
| | - Brice Pastor
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM U1194, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, France
| | - Romain Meddeb
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM U1194, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, France
| | - Cynthia Sanchez
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM U1194, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, France
| | - Giuseppe Arena
- Gustave Roussy Cancer Campus, INSERM U1030, Villejuif, 94805, France
| | - Laurence Lasorsa
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM U1194, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, France
| | - Andrew Bennett
- Institut Jacques Monod, Université Paris Diderot, Paris, France
| | - Thierry Grange
- Institut Jacques Monod, Université Paris Diderot, Paris, France
| | - Safia El Messaoudi
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM U1194, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, France
| | - Thibault Mazard
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM U1194, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, France
| | - Corinne Prevostel
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM U1194, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, France
| | - Alain R Thierry
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM U1194, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, France
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Ingham VA, Bennett A, Peng D, Wagstaff SC, Ranson H. IR-TEx: An Open Source Data Integration Tool for Big Data Transcriptomics Designed for the Malaria Vector Anopheles gambiae. J Vis Exp 2020. [PMID: 32009657 DOI: 10.3791/60721] [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: 10/31/2022] Open
Abstract
IR-TEx is an application written in Shiny (an R package) that allows exploration of the expression of (as well as assigning functions to) transcripts whose expression is associated with insecticide resistance phenotypes in Anopheles gambiae mosquitoes. The application can be used online or downloaded and used locally by anyone. The local application can be modified to add new insecticide resistance datasets generated from multiple -omics platforms. This guide demonstrates how to add new datasets and handle missing data. Furthermore, IR-TEx can be completely and easily recoded to use-omics datasets from any experimental data, making it a valuable resource to many researchers. The protocol illustrates the utility of IR-TEx in identifying new insecticide resistance candidates using the the microsomal glutathione transferase, GSTMS1, as an example. This transcript is upregulated in multiple pyrethroid resistant populations from Côte D'Ivoire and Burkina Faso. The identification of co-correlated transcripts provides further insight into the putative roles of this gene.
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Affiliation(s)
| | - Andrew Bennett
- Research Computing Unit, Liverpool School of Tropical Medicine
| | - Duo Peng
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health
| | | | - Hilary Ranson
- Vector Biology, Liverpool School of Tropical Medicine
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Bennett A, Thavorn K, Coyle D, Arendas K, Singh SS. 2935 Cost-Effectiveness of an Outpatient Uterine Assessment and Treatment Unit in Patients with Abnormal Uterine Bleeding: A Modelling Study. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.385] [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: 11/30/2022]
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Patel MR, Pearson VK, Evans DJ, Summers DJ, Paton S, Truscott P, Pottage T, Bennett A, Gow JPD, Goodyear MD, Mason JP, Leese MR, Patel RD. The transfer of unsterilized material from Mars to Phobos: Laboratory tests, modelling and statistical evaluation. Life Sci Space Res (Amst) 2019; 23:112-134. [PMID: 31791600 DOI: 10.1016/j.lssr.2019.08.002] [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] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 08/12/2019] [Accepted: 08/13/2019] [Indexed: 06/10/2023]
Abstract
Sample return missions to Phobos are the subject of future exploration plans. Given the proximity of Phobos to Mars, Mars' potential to have supported life, and the possibility of material transfer from Mars to Phobos, careful consideration of planetary protection is required. If life exists, or ever existed, on Mars, there is a possibility that material carrying organisms could be present on Phobos and be collected by a sample return mission such as the Japanese Martian Moons eXplorer (MMX). Here we describe laboratory experiments, theoretical modelling and statistical analysis undertaken to quantify whether the likelihood of a sample from Phobos material containing unsterilized material transferred from Mars is less than 10-6, the threshold to transition between restricted and unrestricted sample return classification for planetary protection. We have created heat, impact and radiation sterilization models based on the Phobos environment, and through statistical analyses investigated the level of sterilization expected for martian material transferred to Phobos. These analyses indicate that radiation is the major sterilization factor, sterilizing the Phobos surface over timescales of millions of years. The specific events of most relevance in the Phobos sample return context are the 'young' cratering events on Mars that result in Zunil-sized craters, which can emplace a large mass of martian material on Phobos, in a short period of time, thus inhibiting the effects of radiation sterilization. Major unknowns that cannot yet be constrained accurately enough are found to drive the results - the most critical being the determination of exact crater ages to statistical certainty, and the initial biological loading on Mars prior to transfer. We find that, when taking a conservative perspective and assuming the best-case scenario for organism survival, for a 100 g sample of the Phobos regolith to be below the planetary protection requirement for unrestricted sample return, the initial biological loading on Mars must be <8.2 × 103cfu kg-1. For the planned MMX mission, a ∼10 g sample to be obtained from a 25-30 mm diameter core as planned would require an initial martian biological loading to be <1.6 × 104cfu kg-1, in order to remain compliant with the planetary protection threshold.
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Affiliation(s)
- M R Patel
- School of Physical Sciences, The Open University, Milton Keynes MK7 6AA, UK.
| | - V K Pearson
- School of Physical Sciences, The Open University, Milton Keynes MK7 6AA, UK
| | - D J Evans
- Fluid Gravity Engineering Ltd, The Old Coach House, 1 West Street, Emsworth PO 10 7DX, UK
| | - D J Summers
- Thales Alenia Space UK Ltd., Bld 660, Bristol Business Park, Cold Harbour Lane, Bristol BS16 1EJ, UK
| | - S Paton
- Public Health England, Porton Down, Salisbury SP4 0JG, UK
| | - P Truscott
- Kallisto Consultancy Limited, Farnborough, Hampshire GU14 9AJ, UK
| | - T Pottage
- Public Health England, Porton Down, Salisbury SP4 0JG, UK
| | - A Bennett
- Public Health England, Porton Down, Salisbury SP4 0JG, UK
| | - J P D Gow
- School of Physical Sciences, The Open University, Milton Keynes MK7 6AA, UK
| | - M D Goodyear
- School of Physical Sciences, The Open University, Milton Keynes MK7 6AA, UK
| | - J P Mason
- School of Physical Sciences, The Open University, Milton Keynes MK7 6AA, UK
| | - M R Leese
- School of Physical Sciences, The Open University, Milton Keynes MK7 6AA, UK
| | - R D Patel
- Indospace Ltd, Abingdon, Oxfordshire, UK
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Affiliation(s)
- Andrew Bennett
- FRAME Alternatives Laboratory, University of Nottingham, UK
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32
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Bennett A, Bennett A, Patrick C. The value of the lung cancer nurse specialist in the development and implimentation of the local optimal lung cancer pathway. Lung Cancer 2019. [DOI: 10.1016/s0169-5002(19)30166-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Aranega-Bou P, George RP, Verlander NQ, Paton S, Bennett A, Moore G. Carbapenem-resistant Enterobacteriaceae dispersal from sinks is linked to drain position and drainage rates in a laboratory model system. J Hosp Infect 2018; 102:63-69. [PMID: 30571992 DOI: 10.1016/j.jhin.2018.12.007] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [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: 11/12/2018] [Accepted: 12/10/2018] [Indexed: 12/25/2022]
Abstract
BACKGROUND Hospital sinks, waste traps and drains can harbour carbapenem-resistant Enterobacteriaceae (CRE). AIM To investigate the dispersal of CRE from sinks in which water delivered from the tap flows directly into the drain and from clinical handwash basins with the drain at the rear. The effect of fast and slow drainage rates was also assessed. METHODS Waste traps, known to be colonized with CRE, were taken from a hospital and installed within a model laboratory system. New waste traps were also installed and artificially inoculated with CRE. The potential for bacteria to be dispersed from sinks was assessed using cyclone air samplers and/or settle plates. FINDINGS When the waste traps were artificially contaminated and CRE colonization was confined to the waste trap water, significantly fewer bacteria were dispersed from sinks that drained quickly (P = 0.004) and/or from rear-draining sinks (P = 0.002). When the waste traps were naturally contaminated and CRE colonized the trap, pipework and drain, there was significant interaction between sink drainage and position of the drain (P < 0.001). When drainage was slow, dispersal from rear-draining sinks was almost 30-fold less than from sinks with the drain underneath the tap (P < 0.001). When drainage was fast, rear-draining sinks again released comparatively fewer CRE, although, in this case, the difference was not statistically significant (P = 0.7). Contaminated splashes travelled up to 1 m from the sink. CONCLUSION Slow drainage rates and sink designs with the drain directly underneath the tap increase the risk of CRE present in waste traps and drains contaminating the ward environment.
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Affiliation(s)
- P Aranega-Bou
- Biosafety, Air and Water Microbiology Group, National Infection Service, Public Health England, Salisbury, UK.
| | - R P George
- Manchester University NHS Foundation Trust, Manchester, UK
| | - N Q Verlander
- Statistics Unit, Statistics, Modelling and Economics Department, National Infection Service, Public Health England, Colindale, UK
| | - S Paton
- Biosafety, Air and Water Microbiology Group, National Infection Service, Public Health England, Salisbury, UK
| | - A Bennett
- Biosafety, Air and Water Microbiology Group, National Infection Service, Public Health England, Salisbury, UK
| | - G Moore
- Biosafety, Air and Water Microbiology Group, National Infection Service, Public Health England, Salisbury, UK
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Bennett A, Pollock L, Jere KC, Pitzer VE, Parashar U, Tate JE, Heyderman RS, Mwansambo C, French N, Nakagomi O, Iturriza-Gomara M, Everett D, Cunliffe NA, Bar-Zeev N. Direct and possible indirect effects of vaccination on rotavirus hospitalisations among children in Malawi four years after programmatic introduction. Vaccine 2018; 36:7142-7148. [PMID: 29887320 PMCID: PMC6238204 DOI: 10.1016/j.vaccine.2018.04.030] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 11/24/2017] [Accepted: 04/12/2018] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Despite increased use of vaccine in routine immunisation, rotavirus remains a major cause of acute gastroenteritis (AGE) in low-income countries. We describe rotavirus prevalence and hospitalisation in Malawi pre and four years post vaccine introduction; provide updated vaccine effectiveness (VE) estimates; and assess rotavirus vaccine indirect effects. METHODS Children under five years of age presenting to a referral hospital in Blantyre with AGE were recruited. Stool samples were tested for rotavirus using Enzyme Immunoassay. The change in rotavirus prevalence was evaluated using Poisson regression. Time series analysis was used to further investigate trends in prevalence over time. VE against rotavirus diarrhoea of any severity was estimated using logistic regression. Indirect effects were estimated by evaluating rotavirus prevalence in unvaccinated children over time, and by comparing observed reductions in incidence of rotavirus hospitalisation to those expected based on vaccine coverage and trial efficacy estimates. RESULTS 2320 children were included. Prevalence of rotavirus in hospitalised infants (<12 months) with AGE decreased from 69/139(49.64%) prior to vaccine introduction to 197/607(32.45%) post-vaccine introduction (adjusted RR 0.67[95% CI 0.55, 0.82]). Prevalence in children aged 12-23 months demonstrated a less substantial decline: 15/37(40.54%) pre- and 122/352(34.66%) post-vaccine introduction (adjusted RR 0.85, 95% CI 0.57, 1.28). Adjusted VE was 61.89%(95% CI 28.04-79.82), but lower in children aged 12-23 months (31.69% [95% CI -139.03 to 80.48]). In hospitalised infants with rotavirus disease, the observed overall effect of the vaccine was 9% greater than expected according to vaccine coverage and efficacy estimates. Rotavirus prevalence among unvaccinated infants declined post-vaccine introduction (RR 0.70[95% CI 0.55-0.80]). CONCLUSIONS Following rotavirus vaccine introduction in Malawi, prevalence of rotavirus in hospitalised children with AGE has declined significantly, with some evidence of an indirect effect in infants. Despite this, rotavirus remains an important cause of severe diarrhoea in Malawian children, particularly in the second year of life.
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Affiliation(s)
- A Bennett
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, College of Medicine, University of Malawi, Blantyre, Malawi; Centre for Global Vaccine Research, Institute of Infection & Global Health, University of Liverpool, Liverpool, UK.
| | - L Pollock
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, College of Medicine, University of Malawi, Blantyre, Malawi; Centre for Global Vaccine Research, Institute of Infection & Global Health, University of Liverpool, Liverpool, UK
| | - K C Jere
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, College of Medicine, University of Malawi, Blantyre, Malawi; Centre for Global Vaccine Research, Institute of Infection & Global Health, University of Liverpool, Liverpool, UK
| | - V E Pitzer
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, Yale University, New Haven, CT, USA
| | - U Parashar
- Centers for Disease Control and Prevention, Atlanta, USA
| | - J E Tate
- Centers for Disease Control and Prevention, Atlanta, USA
| | - R S Heyderman
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, College of Medicine, University of Malawi, Blantyre, Malawi; Division of Infection and Immunity, University College London, UK
| | | | - N French
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, College of Medicine, University of Malawi, Blantyre, Malawi; Centre for Global Vaccine Research, Institute of Infection & Global Health, University of Liverpool, Liverpool, UK
| | - O Nakagomi
- Department of Molecular Epidemiology, Nagasaki University, Nagasaki, Japan
| | - M Iturriza-Gomara
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, College of Medicine, University of Malawi, Blantyre, Malawi; NIHR Health Protection Research Unit in Gastrointestinal Infections, University of Liverpool, Liverpool, UK
| | - D Everett
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, College of Medicine, University of Malawi, Blantyre, Malawi; Centre for Global Vaccine Research, Institute of Infection & Global Health, University of Liverpool, Liverpool, UK
| | - N A Cunliffe
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, College of Medicine, University of Malawi, Blantyre, Malawi; Centre for Global Vaccine Research, Institute of Infection & Global Health, University of Liverpool, Liverpool, UK
| | - N Bar-Zeev
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, College of Medicine, University of Malawi, Blantyre, Malawi; Centre for Global Vaccine Research, Institute of Infection & Global Health, University of Liverpool, Liverpool, UK
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Bennett A, Li H, Patel A, Kang K, Gupta P, Choueka J, Feierman DE. Retrospective Analysis of Geriatric Patients Undergoing Hip Fracture Surgery: Delaying Surgery Is Associated With Increased Morbidity, Mortality, and Length of Stay. Geriatr Orthop Surg Rehabil 2018; 9:2151459318795260. [PMID: 30245906 PMCID: PMC6146322 DOI: 10.1177/2151459318795260] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 07/09/2018] [Accepted: 07/10/2018] [Indexed: 12/17/2022] Open
Abstract
Introduction: Hip fractures are common in elderly patients. However, this population frequently presents with significant medical comorbidities requiring extensive medical optimization. Methods: This study sought to elucidate optimal time to surgery and evaluate its effect on postoperative morbidity, mortality, and length of stay (LOS). We performed a retrospective analysis of data collected from 2008 to 2010 on 841 patients who underwent hip fracture surgery. Patients were classified based on time to surgery and were also classified and analyzed according to the American Society of Anesthesiologists (ASA) physical classification system. Results: Patients with a delay of greater than 48 hours had a significant increase in overall LOS, postoperative days, and overall postoperative complications. Patients classified as ASA 4 had an odds ratio for postoperative morbidity of 3.32 compared to the ASA 1 and 2 group (P = .0002) and 2.26 compared to the ASA 3 group (P = .0005). Delaying surgery >48 hours was also associated with increased in-hospital mortality compared to 24 to 48 hours (P = .0197). Increasing ASA classification was also associated with significantly increased mortality. Patients classified as ASA 4 had 5.52 times the odds of ASA 1 and 2 (P = .0281) of in-hospital mortality. Those classified ASA 4 had 2.97 times the odds of ASA 3 (P = .0198) of an in-house mortality. Anesthetic technique (spinal vs general) and age were not confounding variables with respect to mortality or morbidity. Discussion: Surgical timing and ASA classification were evaluated with regard to LOS, number postoperative days, morbidity, and mortality. Conclusions: Delaying surgery >48 hours, especially in those with increased ASA classification, is associated with an increase in overall LOS, postoperative days, morbidity, and mortality. However, rushing patients to surgery may not be beneficial and 24 to 48 hours of preoperative optimization may be advantageous.
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Affiliation(s)
- Andrew Bennett
- Department of Anesthesiology, Maimonides Medical Center, Brooklyn, NY, USA
| | - Hsin Li
- Department of Anesthesiology, Maimonides Medical Center, Brooklyn, NY, USA
| | - Aakash Patel
- Department of Anesthesiology, Maimonides Medical Center, Brooklyn, NY, USA
| | - Kevin Kang
- Department of Orthopedics, Maimonides Medical Center, Brooklyn, NY, USA
| | - Piyush Gupta
- Department of Anesthesiology, Maimonides Medical Center, Brooklyn, NY, USA
| | - Jack Choueka
- Department of Orthopedics, Maimonides Medical Center, Brooklyn, NY, USA
| | - Dennis E Feierman
- Department of Anesthesiology, Maimonides Medical Center, Brooklyn, NY, USA
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Gilligan P, Bennett A, Houlihan A, Padki A, Owen N, Morris D, Chochliouros I, Mohammed A, Mutawa A, Eswarara MA, Gannon S, Alrmawi A, Gasem JZ, Sheung PPN, Tynan C, Little R, Merriman W, Amadi-Obi A, Kenna L, Alim DA, O’Donnel C. The Doctor Can See You Now: A Key Stakeholder Study Into The Acceptability Of Ambulance Based Telemedicine. Ir Med J 2018; 111:769. [PMID: 30518784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Using telecommunications technology it would be possible to link a patient and paramedic to a Doctor in the Emergency Department (ED) at the point of first patient contact. A questionnaire-based study on telemedicine in the pre-hospital environment involving patients, paramedics, doctors and nurses in the ED, was performed to assess if they would want and accept telemedicine in pre-hospital emergency care. When asked 98.5% (55) of patients, 89% (11) of doctors, 76% (14) of nurses and 91% (42) of ambulance personnel saw the potential of an audio-visual link from the pre-hospital environment to the ED. The potential benefits were felt to be in diagnosis of time-dependent illnesses, time management, increased hospital preparedness for incoming patients and increased triage efficiency. Stakeholder enthusiasm for pre-hospital telemedicine must be met with the technological requirements to provide such a service. As noted by one patient a pre-hospital audio-visual link to the ED could be “potentially a life saving service”.
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Affiliation(s)
- P Gilligan
- Department of Emergency Medicine, Beaumont Hospital, Beaumont Road, Dublin 9, Ireland
| | - A Bennett
- Royal College of Surgeons in Ireland (RCSI), Dublin 2, Ireland
| | - A Houlihan
- Royal College of Surgeons in Ireland (RCSI), Dublin 2, Ireland
| | | | - N Owen
- Royal College of Surgeons in Ireland (RCSI), Dublin 2, Ireland
| | | | | | | | - A Mutawa
- Royal College of Surgeons in Ireland (RCSI), Dublin 2, Ireland
| | - M A Eswarara
- Royal College of Surgeons in Ireland (RCSI), Dublin 2, Ireland
| | - S Gannon
- Royal College of Surgeons in Ireland (RCSI), Dublin 2, Ireland
| | - A Alrmawi
- Royal College of Surgeons in Ireland (RCSI), Dublin 2, Ireland
| | - J Z Gasem
- Royal College of Surgeons in Ireland (RCSI), Dublin 2, Ireland
| | - P P N Sheung
- Royal College of Surgeons in Ireland (RCSI), Dublin 2, Ireland
| | - C Tynan
- Royal College of Surgeons in Ireland (RCSI), Dublin 2, Ireland
| | - R Little
- Royal College of Surgeons in Ireland (RCSI), Dublin 2, Ireland
| | | | - A Amadi-Obi
- Department of Emergency Medicine, Beaumont Hospital, Beaumont Road, Dublin 9, Ireland
- Royal College of Surgeons in Ireland (RCSI), Dublin 2, Ireland
| | | | - D A Alim
- Royal College of Surgeons in Ireland (RCSI), Dublin 2, Ireland
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Roscoe D, Roberts AJ, Hulse D, Shaheen A, Hughes MP, Bennett A. Barefoot plantar pressure measurement in Chronic Exertional Compartment Syndrome. Gait Posture 2018; 63:10-16. [PMID: 29702369 DOI: 10.1016/j.gaitpost.2018.04.009] [Citation(s) in RCA: 3] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 07/18/2017] [Accepted: 04/06/2018] [Indexed: 02/02/2023]
Abstract
BACKGROUND Patients with Chronic Exertional Compartment Syndrome (CECS) have exercise-limiting pain that subsides at rest. Diagnosis is confirmed by intramuscular compartment pressure (IMCP) measurement. Accompanying CECS, subjective changes to gait (foot slap) are frequently reported by patients. This has not previously been investigated. The aim of this study was to investigate differences in barefoot plantar pressure (BFPP) between CECS cases and asymptomatic controls prior to the onset of painful symptoms. METHODS 40 male military volunteers, 20 with symptoms of CECS and 20 asymptomatic controls were studied. Alternative diagnoses were excluded with rigorous inclusion criteria, magnetic resonance imaging and dynamic IMCP measurement. BFPP was measured during walking and marching. Data were analysed for: Stance Time (ST); foot progression angle (FPA); centre of force; plantarflexion rate after heel strike (IFFC-time); the distribution of pressure under the heel; and, the ratio between inner and outer metatarsal loading. Correlation coefficients of each variable with speed and leg length were calculated followed by ANCOVA or t-test. Receiver operating characteristic (ROC) curves were constructed for IFFC-time. RESULTS Caseshad shorter ST and IFFC-times than controls. FPA was inversely related to walking speed (WS) in controls only. The area under the ROC curve for IFFC-time ranged from 0.746 (95%CI: 0.636-0.87) to 0.773 (95%CI: 0.671-0.875) representing 'fair predictive validity'. CONCLUSION Patients with CECS have an increased speed of ankle plantarflexion after heel strike that precedes the onset of painful symptoms likely resulting from a mechanical disadvantage of Tibialis Anterior. These findings provide further insight into the pathophysiology of CECS and support further investigation of this non-invasive diagnostic. The predictive value of IFFC-time in the diagnosis of CECS is comparable to post-exercise IMCP but falls short of dynamic IMCP measured during painful symptoms.
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Affiliation(s)
- D Roscoe
- Academic Department of Military Rehabilitation, Defence Medical Rehabilitation Centre, Headley Court, Epsom, Surrey, KT18 6JW, United Kingdom; Department of Biomedical Engineering, University of Surrey Postgraduate Medical School, Duke of Kent Building, University of Surrey, Guildford, Surrey, GU2 7TE, United Kingdom.
| | - A J Roberts
- Academic Department of Military Rehabilitation, Defence Medical Rehabilitation Centre, Headley Court, Epsom, Surrey, KT18 6JW, United Kingdom; Department of Sport and Health Sciences, University of Exeter, College of Life and Environmental Sciences, St. Luke's Campus, Exeter, EX1 2LU, United Kingdom
| | - D Hulse
- Academic Department of Military Rehabilitation, Defence Medical Rehabilitation Centre, Headley Court, Epsom, Surrey, KT18 6JW, United Kingdom
| | - A Shaheen
- Department of Life Sciences, Brunel University London, Kingston Lane, Uxbridge, Middlesex UB8 3PH, United Kingdom
| | - M P Hughes
- Department of Biomedical Engineering, University of Surrey Postgraduate Medical School, Duke of Kent Building, University of Surrey, Guildford, Surrey, GU2 7TE, United Kingdom
| | - A Bennett
- Academic Department of Military Rehabilitation, Defence Medical Rehabilitation Centre, Headley Court, Epsom, Surrey, KT18 6JW, United Kingdom; Leeds Institute of Molecular Medicine, University of Leeds, St James's University Hospital, Leeds, LS9 7TF, United Kingdom
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Tewari N, Awad S, Duška F, Williams JP, Bennett A, Macdonald IA, Lobo DN. Postoperative inflammation and insulin resistance in relation to body composition, adiposity and carbohydrate treatment: A randomised controlled study. Clin Nutr 2018; 38:204-212. [PMID: 29454501 PMCID: PMC6380471 DOI: 10.1016/j.clnu.2018.01.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 01/25/2018] [Indexed: 12/17/2022]
Abstract
Background & aims The aims of this study were to identify whether differences in distribution of adipose tissue and skeletal muscle in obese and non-obese individuals contribute to the magnitude of the postoperative inflammatory response and insulin resistance, with and without preoperative treatment with carbohydrate drinks. Methods Thirty-two adults (16 obese/16 non-obese) undergoing elective major open abdominal surgery participated in this 2 × 2 factorial, randomised, double-blind, placebo-controlled study. Participants received Nutricia preOp® or placebo (800 ml on the night before surgery/400 ml 2–3 h preoperatively) after stratifying for obesity. Insulin sensitivity was measured using the hyperinsulinaemic-euglycaemic clamp preoperatively and on the 1st postoperative day. Vastus lateralis, omental and subcutaneous fat biopsies were taken pre- and postoperatively and analysed after RNA extraction. The primary endpoint was within subject differences in insulin sensitivity. Results Major abdominal surgery was associated with a 42% reduction in insulin sensitivity from mean(SD) M value of 37.3(11.8) μmol kg−1 fat free mass (FFM) to 21.7(7.4) μmol kg−1 FFM, but this was not influenced by obesity or preoperative carbohydrate treatment. Activation of the triggering receptor expressed on myeloid cells (TREM1) pathway was seen in response to surgery in omental fat samples. In postoperative muscle samples, gene expression differences indicated activation of the peroxisome proliferator-activated receptor (PPAR-α)/retinoid X-receptor (RXR-α) pathway in obese but not in non-obese participants. There were no significant changes in gene expression pathways associated with carbohydrate treatment. Conclusion The reduction in insulin sensitivity associated with major abdominal surgery was confirmed but there were no differences associated with preoperative carbohydrates or obesity.
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Affiliation(s)
- Nilanjana Tewari
- Gastrointestinal Surgery, Nottingham Digestive Diseases Centre, National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and University of Nottingham, Queen's Medical Centre, Nottingham NG7 2UH, UK
| | - Sherif Awad
- Gastrointestinal Surgery, Nottingham Digestive Diseases Centre, National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and University of Nottingham, Queen's Medical Centre, Nottingham NG7 2UH, UK; The East-Midlands Bariatric and Metabolic Institute (EMBMI), Derby Teaching Hospitals NHS Foundation Trust, Royal Derby Hospital, Derby DE22 3NE, UK
| | - František Duška
- Department of Anaesthesia and Intensive Care, Kralovske Vinohrady University Hospital and The Third Faculty of Medicine, Prague, Czech Republic; Department of Critical Care, Nottingham University Hospitals NHS Trust, Queen's Medical Centre, Nottingham NG7 2UH, UK
| | - Julian P Williams
- Gastrointestinal Surgery, Nottingham Digestive Diseases Centre, National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and University of Nottingham, Queen's Medical Centre, Nottingham NG7 2UH, UK
| | - Andrew Bennett
- FRAME Laboratory, School of Life Sciences, University of Nottingham, Queen's Medical Centre, Nottingham NG7 2UH, UK; School of Life Sciences, University of Nottingham, Queen's Medical Centre, Nottingham NG7 2UH, UK
| | - Ian A Macdonald
- School of Life Sciences, University of Nottingham, Queen's Medical Centre, Nottingham NG7 2UH, UK; MRC/ARUK Centre for Musculoskeletal Ageing Research, University of Nottingham, Queen's Medical Centre, Nottingham NG7 2UH, UK
| | - Dileep N Lobo
- Gastrointestinal Surgery, Nottingham Digestive Diseases Centre, National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and University of Nottingham, Queen's Medical Centre, Nottingham NG7 2UH, UK; MRC/ARUK Centre for Musculoskeletal Ageing Research, University of Nottingham, Queen's Medical Centre, Nottingham NG7 2UH, UK.
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Lehnert MS, Reiter KE, Bennett A, Gerard PD, Wei QH, Byler M, Yan H, Lee WK. The Ingestion of Fluorescent, Magnetic Nanoparticles for Determining Fluid-uptake Abilities in Insects. J Vis Exp 2017. [PMID: 29286409 DOI: 10.3791/56619] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Fluid-feeding insects ingest a variety of liquids, which are present in the environment as pools, films, or confined to small pores. Studies of liquid acquisition require assessing mouthpart structure and function relationships; however, fluid uptake mechanisms are historically inferred from observations of structural architecture, sometimes unaccompanied with experimental evidence. Here, we report a novel method for assessing fluid-uptake abilities with butterflies (Lepidoptera) and flies (Diptera) using small amounts of liquids. Insects are fed with a 20% sucrose solution mixed with fluorescent, magnetic nanoparticles from filter papers of specific pore sizes. The crop (internal structure used for storing fluids) is removed from the insect and placed on a confocal microscope. A magnet is waved by the crop to determine the presence of nanoparticles, which indicate if the insects are able to ingest fluids. This methodology is used to reveal a widespread feeding mechanism (capillary action and liquid bridge formation) that is potentially shared among Lepidoptera and Diptera when feeding from porous surfaces. In addition, this method can be used for studies of feeding mechanisms among a variety of fluid-feeding insects, including those important in disease transmission and biomimetics, and potentially other studies that involve nano- or micro-sized conduits where liquid transport requires verification.
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Affiliation(s)
| | - Kristen E Reiter
- Department of Biological Sciences, Kent State University at Stark
| | - Andrew Bennett
- Department of Biological Sciences, Kent State University at Stark
| | | | - Qi-Huo Wei
- Liquid Crystal Institute, Kent State University
| | - Miranda Byler
- Department of Biological Sciences, Kent State University at Stark
| | - Huan Yan
- Liquid Crystal Institute, Kent State University
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Bennett A, Antonopoulos K, Sullivan N, Sadler A, Mills H, O’Doherty O, Parkinson M. Integrating a NHS community physiotherapy and musculoskeletal clinical assessment service: a service evaluation. Physiotherapy 2017. [DOI: 10.1016/j.physio.2017.11.153] [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: 12/01/2022]
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41
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Bennett A, McDonald T. Restoring at landscape scales: Interview with Andrew Bennett. Ecol Manag Restor 2017. [DOI: 10.1111/emr.12274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Kuo LY, Bennett A, Miao Q. Heterogeneous Organophosphate Ethanolysis: Degradation of Phosphonothioate Neurotoxin by a Supported Molybdenum Peroxo Polymer. Inorg Chem 2017; 56:10013-10020. [DOI: 10.1021/acs.inorgchem.7b01545] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Louis Y. Kuo
- Department of Chemistry, Lewis & Clark College, Portland, Oregon 97219, United States
| | - Andrew Bennett
- Department of Chemistry, Lewis & Clark College, Portland, Oregon 97219, United States
| | - Qianli Miao
- Department of Chemistry, Lewis & Clark College, Portland, Oregon 97219, United States
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Baldry EL, Aithal GP, Kaye P, Idris IR, Bennett A, Leeder PC, Macdonald IA. Effects of short-term energy restriction on liver lipid content and inflammatory status in severely obese adults: Results of a randomized controlled trial using 2 dietary approaches. Diabetes Obes Metab 2017; 19:1179-1183. [PMID: 28230324 DOI: 10.1111/dom.12918] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 02/15/2017] [Accepted: 02/20/2017] [Indexed: 02/02/2023]
Abstract
Short-term very-low-energy diets (VLEDs) are used in clinical practice prior to bariatric surgery, but regimens vary and outcomes of a short intervention are unclear. We examined the effect of 2 VLEDs, a food-based diet (FD) and a meal-replacement plan (MRP; LighterLife UK Limited, Harlow, UK), over the course of 2 weeks in a randomized controlled trial. We collected clinical and anthropometric data, fasting blood samples, and dietary evaluation questionnaires. Surgeons took liver biopsies and made a visual assessment of the liver. We enrolled 60 participants of whom 54 completed the study (FD, n = 26; MRP, n = 28). Baseline demographic features, reported energy intake, dietary evaluation and liver histology were similar in the 2 groups. Both diets induced significant weight loss. Perceived difficulty of surgery correlated significantly with the degree of steatosis on histology. There were reductions in the circulating inflammatory mediators C-reactive protein, fetuin-A and interleukin-6 between baseline (pre-diet) and post-diet. The diets achieved similar weight loss and reduction in inflammatory biomarkers. There were no significant differences in perceived operative difficulty or between patients' evaluation of diet satisfaction, ease of use or hunger frequency. Non-alcoholic fatty liver disease histology assessments post-diet were also not significantly different between diets. The results of this study show the effectiveness of short-term VLEDs and energy restriction, irrespective of macronutrient composition, although the small sample size precluded detection of subtle differences between interventions.
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Affiliation(s)
- Emma L Baldry
- Faculty of Medicine and Health Sciences, University of Nottingham Medical School, University of Nottingham, Queen's Medical Centre, Nottingham, UK
| | - Guruprasad P Aithal
- National Institute for Health Research, Nottingham Digestive Diseases Biomedical Research Unit, University of Nottingham Medical School, Nottingham University Hospitals NHS Trust and University of Nottingham, Queen's Medical Centre, Nottingham, UK
| | - Philip Kaye
- Department of Cellular Pathology, Nottingham Digestive Diseases Centre Biomedical Research Unit, Nottingham University Hospitals NHS Trust, University of Nottingham, Queens Medical Centre, Nottingham, UK
| | - Iskandar R Idris
- MRC Musculoskeletal Physiology and Ageing, Division of Medical Sciences and Graduate Entry Medicine, University of Nottingham, Derby Teaching Hospitals NHS Foundation Trust, Derby, UK
| | - Andrew Bennett
- Faculty of Medicine and Health Sciences, University of Nottingham Medical School, University of Nottingham, Queen's Medical Centre, Nottingham, UK
| | - Paul C Leeder
- East-Midlands Bariatric and Metabolic Institute, Derby Teaching Hospitals NHS Foundation Trust, Royal Derby Hospital, Derby, UK
| | - Ian A Macdonald
- Faculty of Medicine and Health Sciences, University of Nottingham Medical School, University of Nottingham, Queen's Medical Centre, Nottingham, UK
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Collins S, Stevenson D, Walker J, Bennett A. Evaluation ofLegionellareal-time PCR against traditional culture for routine and public health testing of water samples. J Appl Microbiol 2017; 122:1692-1703. [DOI: 10.1111/jam.13461] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 03/25/2017] [Accepted: 03/27/2017] [Indexed: 11/29/2022]
Affiliation(s)
- S. Collins
- Biosafety Air and Water Microbiology Group; Public Health England; Porton Down Salisbury UK
| | - D. Stevenson
- Biosafety Air and Water Microbiology Group; Public Health England; Porton Down Salisbury UK
| | - J. Walker
- Biosafety Air and Water Microbiology Group; Public Health England; Porton Down Salisbury UK
| | - A. Bennett
- Biosafety Air and Water Microbiology Group; Public Health England; Porton Down Salisbury UK
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Mistry P, Aied A, Alexander M, Shakesheff K, Bennett A, Yang J. Bioprinting Using Mechanically Robust Core-Shell Cell-Laden Hydrogel Strands. Macromol Biosci 2017; 17. [PMID: 28160431 DOI: 10.1002/mabi.201600472] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 12/23/2016] [Indexed: 11/06/2022]
Abstract
The strand material in extrusion-based bioprinting determines the microenvironments of the embedded cells and the initial mechanical properties of the constructs. One unmet challenge is the combination of optimal biological and mechanical properties in bioprinted constructs. Here, a novel bioprinting method that utilizes core-shell cell-laden strands with a mechanically robust shell and an extracellular matrix-like core has been developed. Cells encapsulated in the strands demonstrate high cell viability and tissue-like functions during cultivation. This process of bioprinting using core-shell strands with optimal biochemical and biomechanical properties represents a new strategy for fabricating functional human tissues and organs.
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Affiliation(s)
- Pritesh Mistry
- Division of Drug Delivery and Tissue Engineering, School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Ahmed Aied
- Division of Drug Delivery and Tissue Engineering, School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Morgan Alexander
- Division of Surface Analysis and Biophysics, School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Kevin Shakesheff
- Division of Drug Delivery and Tissue Engineering, School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Andrew Bennett
- FRAME Laboratory, School of Life Sciences, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Jing Yang
- Division of Drug Delivery and Tissue Engineering, School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD, UK
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Lehnert MS, Bennett A, Reiter KE, Gerard PD, Wei QH, Byler M, Yan H, Lee WK. Mouthpart conduit sizes of fluid-feeding insects determine the ability to feed from pores. Proc Biol Sci 2017; 284:rspb.2016.2026. [PMID: 28053058 DOI: 10.1098/rspb.2016.2026] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [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: 09/15/2016] [Accepted: 12/05/2016] [Indexed: 11/12/2022] Open
Abstract
Fluid-feeding insects, such as butterflies, moths and flies (20% of all animal species), are faced with the common selection pressure of having to remove and feed on trace amounts of fluids from porous surfaces. Insects able to acquire fluids that are confined to pores during drought conditions would have an adaptive advantage and increased fitness over other individuals. Here, we performed feeding trials using solutions with magnetic nanoparticles to show that butterflies and flies have mouthparts adapted to pull liquids from porous surfaces using capillary action as the governing principle. In addition, the ability to feed on the liquids collected from pores depends on a relationship between the diameter of the mouthpart conduits and substrate pore size diameter; insects with mouthpart conduit diameters larger than the pores cannot successfully feed, thus there is a limiting substrate pore size from which each species can acquire liquids for fluid uptake. Given that natural selection independently favoured mouthpart architectures that support these methods of fluid uptake (Diptera and Lepidoptera share a common ancestor 280 Ma that had chewing mouthparts), we suggest that the convergence of this mechanism advocates this as an optimal strategy for pulling trace amounts of fluids from porous surfaces.
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Affiliation(s)
- Matthew S Lehnert
- Department of Biological Sciences, Kent State University at Stark, North Canton, OH 44720, USA
| | - Andrew Bennett
- Department of Biological Sciences, Kent State University at Stark, North Canton, OH 44720, USA
| | - Kristen E Reiter
- Department of Biological Sciences, Kent State University at Stark, North Canton, OH 44720, USA
| | - Patrick D Gerard
- Department of Mathematical Sciences, Clemson University, Clemson, SC 29634, USA
| | - Qi-Huo Wei
- Liquid Crystal Institute, Kent State University, Kent, OH 44242, USA
| | - Miranda Byler
- Department of Biological Sciences, Kent State University at Stark, North Canton, OH 44720, USA
| | - Huan Yan
- Liquid Crystal Institute, Kent State University, Kent, OH 44242, USA
| | - Wah-Keat Lee
- Brookhaven National Laboratory, Upton, NY 11973, USA
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Henning DCW, Bennett A. Role 1 Enhanced: a new paradigm in humanitarian operations. J R Nav Med Serv 2017; 103:32-34. [PMID: 30088737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Operation BUCKTAIL is the UK contribution to migrant surveillance and reconnaissance in the Aegean Sea. This paper describes two different and novel medical configurations which deployed in early 2016 to this Area of Operations (AO). Casualties in this situation would be treated under the Convention of Safety Of Life At Sea, a humanitarian role which may be less familiar to some of the Defence Medical Services. Casualty management is discussed and the composition of medical teams examined.
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Tod A, Magee L, Coates M, Bennett A, Sarkar N. 96: An evaluation of a lung cancer research training for nurses: Thoracic Oncology Research from Concept to Home Run (TORCH). Lung Cancer 2017. [DOI: 10.1016/s0169-5002(17)30146-0] [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: 10/20/2022]
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Abstract
Fear, one of the most powerful of all human emotional reactions, is a normal response to an active or perceived threat that precipitates both physiological and psychological changes. Research with elementary and preschool children has revealed developmental trends in the types and realism of expressed fears. This study examined specific fears of adolescents and the existence of developmental changes and gender differences. Adolescents in grades 7 through 11 (N=478) in a suburban public high school completed a questionnaire that requested that they provide a list of their fears. An analysis of variance revealed that girls reported more fears than boys, and that older students reported more fears than younger students. Results of Chi Square analyses reveal clear developmental trends in the fear of AIDS, drugs, career, and political instability. Gender differences were noted with more females being concerned about peer pressure, the future, and moral and social values.
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Gupta R, Derevensky J, Tsanos A, Klein C, Bennett A, Kanevsky L. A Comparison of Adolescents' Fears from Montreal and Vancouver. Canadian Journal of School Psychology 2016. [DOI: 10.1177/082957359501100103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Adolescence is a developmental period often filled with uncertainty, conflict, and major life changes. Fear, a powerful human emotion, represents a normal response to active or perceived threat experienced by all individuals at all stages of life. Adolescents were found to experience fears relevant to their stage in life. Issues of acceptance by peers, the formulation of one's identity, discovering intimate relationships, and the uncertainty of their future are all typical adolescent concerns. Substantial interindividual variability was found to exist in the manifestation, acquisition, and persistence of fears. Findings revealed that as a whole the three most commonly reported fears concern their future, issues related to the environment, and AIDS. With respect to location, adolescents in Vancouver report significantly more fears, especially fears of violence and pain and death, than do those from Montreal. Montrealers most frequently expressed fears of the future, AIDS, and political instability. Developmental trends revealed an increase in fears of the future, the environment, and political instability, and a decrease in fears of violence and peer pressure as they get older. Females in general were found to express more fears than their male counterparts in most categories. The results are discussed with respect to situational and demographic factors, developmental changes, and gender differences.
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