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Martin LBB, Kikuchi S, Rejzek M, Owen C, Reed J, Orme A, Misra RC, El-Demerdash A, Hill L, Hodgson H, Liu Y, Keasling JD, Field RA, Truman AW, Osbourn A. Complete biosynthesis of the potent vaccine adjuvant QS-21. Nat Chem Biol 2024; 20:493-502. [PMID: 38278997 PMCID: PMC10972754 DOI: 10.1038/s41589-023-01538-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 12/20/2023] [Indexed: 01/28/2024]
Abstract
QS-21 is a potent vaccine adjuvant currently sourced by extraction from the Chilean soapbark tree. It is a key component of human vaccines for shingles, malaria, coronavirus disease 2019 and others under development. The structure of QS-21 consists of a glycosylated triterpene scaffold coupled to a complex glycosylated 18-carbon acyl chain that is critical for immunostimulant activity. We previously identified the early pathway steps needed to make the triterpene glycoside scaffold; however, the biosynthetic route to the acyl chain, which is needed for stimulation of T cell proliferation, was unknown. Here, we report the biogenic origin of the acyl chain, characterize the series of enzymes required for its synthesis and addition and reconstitute the entire 20-step pathway in tobacco, thereby demonstrating the production of QS-21 in a heterologous expression system. This advance opens up unprecedented opportunities for bioengineering of vaccine adjuvants, investigating structure-activity relationships and understanding the mechanisms by which these compounds promote the human immune response.
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Affiliation(s)
| | | | - Martin Rejzek
- John Innes Centre, Norwich Research Park, Norwich, UK
| | | | - James Reed
- John Innes Centre, Norwich Research Park, Norwich, UK
| | | | | | - Amr El-Demerdash
- John Innes Centre, Norwich Research Park, Norwich, UK
- Department of Chemistry, Faculty of Sciences, Mansoura University, Mansoura, Egypt
| | - Lionel Hill
- John Innes Centre, Norwich Research Park, Norwich, UK
| | | | - Yuzhong Liu
- California Institute of Quantitative Biosciences (QB3), University of California, Berkeley, Berkeley, CA, USA
- Joint BioEnergy Institute, Emeryville, CA, USA
| | - Jay D Keasling
- California Institute of Quantitative Biosciences (QB3), University of California, Berkeley, Berkeley, CA, USA
- Joint BioEnergy Institute, Emeryville, CA, USA
- Department of Chemical & Biomolecular Engineering, University of California, Berkeley, Berkeley, CA, USA
- Department of Bioengineering, University of California, Berkeley, Berkeley, CA, USA
- Center for Biosustainability, Danish Technical University, Lyngby, Denmark
- Center for Synthetic Biochemistry, Shenzhen Institutes for Advanced Technologies, Shenzhen, China
| | - Robert A Field
- Department of Chemistry and Manchester Institute of Biotechnology, University of Manchester, Manchester, UK
| | | | - Anne Osbourn
- John Innes Centre, Norwich Research Park, Norwich, UK.
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Gate T, Hill L, Miller AJ, Sanders D. AtIAR1 is a Zn transporter that regulates auxin metabolism in Arabidopsis thaliana. J Exp Bot 2024; 75:1437-1450. [PMID: 37988591 PMCID: PMC10901206 DOI: 10.1093/jxb/erad468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 11/20/2023] [Indexed: 11/23/2023]
Abstract
Root growth in Arabidopsis is inhibited by exogenous auxin-amino acid conjugates, and mutants resistant to one such conjugate [indole-3-acetic acid (IAA)-Ala] map to a gene (AtIAR1) that is a member of a metal transporter family. Here, we test the hypothesis that AtIAR1 controls the hydrolysis of stored conjugated auxin to free auxin through zinc transport. AtIAR1 complements a yeast mutant sensitive to zinc, but not manganese- or iron-sensitive mutants, and the transporter is predicted to be localized to the endoplasmic reticulum/Golgi in plants. A previously identified Atiar1 mutant and a non-expressed T-DNA mutant both exhibit altered auxin metabolism, including decreased IAA-glucose conjugate levels in zinc-deficient conditions and insensitivity to the growth effect of exogenous IAA-Ala conjugates. At a high concentration of zinc, wild-type plants show a novel enhanced response to root growth inhibition by exogenous IAA-Ala which is disrupted in both Atiar1 mutants. Furthermore, both Atiar1 mutants show changes in auxin-related phenotypes, including lateral root density and hypocotyl length. The findings therefore suggest a role for AtIAR1 in controlling zinc release from the secretory system, where zinc homeostasis plays a key role in regulation of auxin metabolism and plant growth regulation.
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Affiliation(s)
- Thomas Gate
- Biochemistry and Metabolism, John Innes Centre, Norwich NR4 7UH, UK
| | - Lionel Hill
- Biochemistry and Metabolism, John Innes Centre, Norwich NR4 7UH, UK
| | - Anthony J Miller
- Biochemistry and Metabolism, John Innes Centre, Norwich NR4 7UH, UK
| | - Dale Sanders
- Biochemistry and Metabolism, John Innes Centre, Norwich NR4 7UH, UK
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H, Jeffers L, Jenkins A, Jesky M, Jesus-Silva J, Jeyarajah D, Jiang Y, Jiao X, Jimenez G, Jin B, Jin Q, Jochims J, Johns B, Johnson C, Johnson T, Jolly S, Jones L, Jones L, Jones S, Jones T, Jones V, Joseph M, Joshi S, Judge P, Junejo N, Junus S, Kachele M, Kadowaki T, Kadoya H, Kaga H, Kai H, Kajio H, Kaluza-Schilling W, Kamaruzaman L, Kamarzarian A, Kamimura Y, Kamiya H, Kamundi C, Kan T, Kanaguchi Y, Kanazawa A, Kanda E, Kanegae S, Kaneko K, Kaneko K, Kang HY, Kano T, Karim M, Karounos D, Karsan W, Kasagi R, Kashihara N, Katagiri H, Katanosaka A, Katayama A, Katayama M, Katiman E, Kato K, Kato M, Kato N, Kato S, Kato T, Kato Y, Katsuda Y, Katsuno T, Kaufeld J, Kavak Y, Kawai I, Kawai M, Kawai M, Kawase A, Kawashima S, Kazory A, Kearney J, Keith B, Kellett J, Kelley S, Kershaw M, Ketteler M, Khai Q, Khairullah Q, Khandwala H, Khoo KKL, Khwaja A, Kidokoro K, Kielstein J, Kihara M, Kimber C, Kimura S, Kinashi H, Kingston H, Kinomura M, Kinsella-Perks E, Kitagawa M, Kitajima M, Kitamura S, Kiyosue A, Kiyota M, Klauser F, Klausmann G, Kmietschak W, Knapp K, Knight C, Knoppe A, Knott C, Kobayashi M, Kobayashi R, Kobayashi T, Koch M, Kodama S, Kodani N, Kogure E, Koizumi M, Kojima H, Kojo T, Kolhe N, Komaba H, Komiya T, Komori H, Kon SP, Kondo M, Kondo M, Kong W, Konishi M, Kono K, Koshino M, Kosugi T, Kothapalli B, Kozlowski T, Kraemer B, Kraemer-Guth A, Krappe J, Kraus D, Kriatselis C, Krieger C, Krish P, Kruger B, Ku Md Razi KR, Kuan Y, Kubota S, Kuhn S, Kumar P, Kume S, Kummer I, Kumuji R, Küpper A, Kuramae T, Kurian L, Kuribayashi C, Kurien R, Kuroda E, Kurose T, Kutschat A, Kuwabara N, Kuwata H, La Manna G, Lacey M, Lafferty K, LaFleur P, Lai V, Laity E, Lambert A, Landray MJ, Langlois M, Latif F, Latore E, Laundy E, Laurienti D, Lawson A, Lay M, Leal I, Leal I, Lee AK, Lee J, Lee KQ, Lee R, Lee SA, Lee YY, Lee-Barkey Y, Leonard N, Leoncini G, Leong CM, Lerario S, Leslie A, Levin A, Lewington A, Li J, Li N, Li X, Li Y, Liberti L, Liberti ME, Liew A, Liew YF, 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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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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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D’Orso F, Hill L, Appelhagen I, Lawrenson T, Possenti M, Li J, Harwood W, Morelli G, Martin C. Exploring the metabolic and physiological roles of HQT in S. lycopersicum by gene editing. Front Plant Sci 2023; 14:1124959. [PMID: 37063176 PMCID: PMC10102458 DOI: 10.3389/fpls.2023.1124959] [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] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 03/14/2023] [Indexed: 06/19/2023]
Abstract
The most abundant phenolic compound in Solanaceous plants is chlorogenic acid (CGA), which possesses protective properties such as antimicrobial and antioxidant activities. These properties are particularly relevant when plants are under adverse conditions, such as pathogen attack, excess light, or extreme temperatures that cause oxidative stress. Additionally, CGA has been shown to absorb UV-B light. In tomato and potato, CGA is mainly produced through the HQT pathway mediated by the enzyme hydroxycinnamoyl-CoA:quinate hydroxycinnamoyl transferase. However, the absence of natural or induced mutants of this gene has made it unclear whether other pathways contribute to CGA production and accumulation. To address this question, we used CRISPR technology to generate multiple knock-out mutant lines in the tomato HQT gene. The resulting slhqt plants did not accumulate CGA or other caffeoylquinic acids (CQAs) in various parts of the plant, indicating that CQA biosynthesis depends almost entirely on the HQT pathway in tomato and, likely, other Solanaceous crops. We also found that the lack of CGA in slhqt plants led to higher levels of hydroxycinnamoyl-glucose and flavonoids compared to wild-type plants. Gene expression analysis revealed that this metabolic reorganization was partly due to flux redirection, but also involved modulation of important transcription factor genes that regulate secondary metabolism and sense environmental conditions. Finally, we investigated the physiological role of CGA in tomato and found that it accumulates in the upper epidermis where it acts as a protector against UV-B irradiation.
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Affiliation(s)
- Fabio D’Orso
- Council for Agricultural Research and Economics (CREA), Research Centre for Genomics and Bioinformatics, Rome, Italy
- John Innes Centre, Norwich Research Park, Norwich, United Kingdom
| | - Lionel Hill
- John Innes Centre, Norwich Research Park, Norwich, United Kingdom
| | - Ingo Appelhagen
- John Innes Centre, Norwich Research Park, Norwich, United Kingdom
| | - Tom Lawrenson
- John Innes Centre, Norwich Research Park, Norwich, United Kingdom
| | - Marco Possenti
- Council for Agricultural Research and Economics (CREA), Research Centre for Genomics and Bioinformatics, Rome, Italy
| | - Jie Li
- John Innes Centre, Norwich Research Park, Norwich, United Kingdom
| | - Wendy Harwood
- John Innes Centre, Norwich Research Park, Norwich, United Kingdom
| | - Giorgio Morelli
- Council for Agricultural Research and Economics (CREA), Research Centre for Genomics and Bioinformatics, Rome, Italy
| | - Cathie Martin
- John Innes Centre, Norwich Research Park, Norwich, United Kingdom
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Weiss K, Devrim-Lanpir A, Jastrzębski Z, Nikolaidis PT, Hill L, Knechtle B. Performance improvement in sport through vitamin D - a narrative review. Eur Rev Med Pharmacol Sci 2022; 26:7756-7770. [PMID: 36394723 DOI: 10.26355/eurrev_202211_30124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
OBJECTIVE It is well known that vitamin D deficiency can lead to various health problems. However, it is not common knowledge among athletes and doctors that vitamin D deficiency is prevalent in sports. This deficiency can severely impact performance, while vitamin D supplementation can alleviate this effect and potentially improve performance. MATERIALS AND METHODS This narrative review aims to compile the current state of knowledge about the importance of vitamin D in increasing performance for active people. To this end, we searched the 'Scopus' and 'PubMed' databases for the terms 'vitamin D - athlete - performance' with an end date of 30 June 2022. RESULTS Study results indicated that the therapeutic impact of vitamin D on aerobic capacity, recovery, strength and sprint performance remains controversial. CONCLUSIONS Based on the previous findings on recovery, strength and performance, 4,000-5,000 IU of vitamin D per day may be a safe dose that can improve athletic performance.
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Affiliation(s)
- K Weiss
- Institute of Primary Care, University of Zurich, Zurich, Switzerland.
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Watson-Lazowski A, Raven E, Feike D, Hill L, Barclay JE, Smith AM, Seung D. Loss of PROTEIN TARGETING TO STARCH 2 has variable effects on starch synthesis across organs and species. J Exp Bot 2022; 73:6367-6379. [PMID: 35716106 PMCID: PMC9578351 DOI: 10.1093/jxb/erac268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 06/15/2022] [Indexed: 05/12/2023]
Abstract
Recent work has identified several proteins involved in starch granule initiation, the first step of starch synthesis. However, the degree of conservation in the granule initiation process remains poorly understood, especially among grass species differing in patterns of carbohydrate turnover in leaves, and granule morphology in the endosperm. We therefore compared mutant phenotypes of Hordeum vulgare (barley), Triticum turgidum (durum wheat), and Brachypodium distachyon defective in PROTEIN TARGETING TO STARCH 2 (PTST2), a key granule initiation protein. We report striking differences across species and organs. Loss of PTST2 from leaves resulted in fewer, larger starch granules per chloroplast and normal starch content in wheat, fewer granules per chloroplast and lower starch content in barley, and almost complete loss of starch in Brachypodium. The loss of starch in Brachypodium leaves was accompanied by high levels of ADP-glucose and detrimental effects on growth and physiology. Additionally, we found that loss of PTST2 increased granule initiation in Brachypodium amyloplasts, resulting in abnormal compound granule formation throughout the seed. These findings suggest that the importance of PTST2 varies greatly with the genetic and developmental background and inform the extent to which the gene can be targeted to improve starch in crops.
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Affiliation(s)
| | - Emma Raven
- John Innes Centre, Norwich Research Park, Norwich, UK
| | - Doreen Feike
- John Innes Centre, Norwich Research Park, Norwich, UK
| | - Lionel Hill
- John Innes Centre, Norwich Research Park, Norwich, UK
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Hill L, Gadde M, Ruiz V, Alabduljabbar D, Bulow C, Goldner N, Selvaggi G. Differentiating Ensartinib from Lorlatinib and Alectinib for first line use in an ALK+ non-small cell lung cancer preclinical model (ResCu). Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)01089-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Raywood E, Filipow N, Stanojevic S, Shannon H, Douglas H, Tanriver G, Murray N, O'Connor R, Hill L, Dawson C, Davies G, Stott L, Saul G, Kuzhagaliyev T, van Schaik T, Furtuna B, Liakhovich O, Booth J, Kapoor K, Main E. 276 Effects of quantity and quality of daily airway clearance treatments on lung function in children and young people with cystic fibrosis: Results from Project Fizzyo. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)00966-3] [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: 11/07/2022]
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Main E, Filipow N, Raywood E, Tanriver G, Douglas H, Davies G, Murray N, O'Connor R, Stott L, Saul G, Kuzhagaliyev T, Liakhovich O, Furtuna B, van Schaik T, Booth J, Dawson C, Hill L, Kapoor K, Stanojevic S. 271 Impact of habitual levels of moderate to vigorous physical activity on forced expiratory volume in 1 second in children and young people with cystic fibrosis: Results from Project Fizzyo. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)00961-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Fitzsimons D, Carson MA, Reid J, Hill L, Dixon L, Donnelly P, Slater P, Hill A, Piper SE, Mcdonagh TA, Thompson G. The impact and experience of cardiac cachexia in advanced heart failure patients and their caregivers. Eur J Cardiovasc Nurs 2022. [DOI: 10.1093/eurjcn/zvac060.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Foundation. Main funding source(s): Northern Ireland Chest Heart & Stroke
Background
Cardiac cachexia is a multifactorial wasting syndrome, which is characterised by unintentional weight loss, a reduction in skeletal muscle mass, and reduced quality of life. There is a paucity of qualitative research outlining the impact and experience of cardiac cachexia in advanced heart failure patients and their caregivers. Research in this area may promote a better understanding of the syndrome, enhance current treatment strategies, and highlight priorities for patient care.
Purpose
To qualitatively investigate the impact and experience of cardiac cachexia in advanced heart failure patients and their caregivers.
Methods
Semi-structured interviews were performed with advanced heart failure (NYHA functional class III-IV) patients meeting diagnostic criteria for cardiac cachexia (number (n) = 8) and their caregivers (n = 5). Interview questions followed a "laddered style approach", with a focus on determining the experience of cachexia for patients and carers, and its impact on their daily lives. Interviews were digitally recorded and transcribed verbatim. Average interview duration was 43 (15-64) minutes. Data were thematically analysed, using the 6-step approach of Braun & Clarke. Themes were developed and refined by several members of the research team to ensure rigor.
Results
Four key themes were developed from the data. 1) "Changed relationship with food and eating": patients with cachexia referred to eating as something they now ‘make’ themselves do without enjoyment, often just to placate their caregiver. Caregivers noted this change in habit and were concerned about inadequate nutritional intake due to the patient’s lack of interest in food. 2) "Not me in the mirror": patients struggled with their appearance and had a negative perception of themselves, linked to their weight loss. Caregivers were similarly aware of the physical changes in their loved ones and emotionally impacted. 3) "Lack of understanding regarding cachexia": despite the patient and caregivers’ concerns, they had a perception that healthcare professionals were just ‘fobbing you off’. Even though weight loss was noted and distressing to patients and caregivers, there was little clinical recognition of it, nor any advice or support from the clinical team regarding management. 4) "Uncertainty regarding the future": patients and caregivers recognised cachexia as a bad sign, and many expressed concerns about their future health and prognosis.
Conclusion
These novel qualitative findings highlight the severe impact of cardiac cachexia on the daily lives of patients and caregivers, and demonstrate their limited understanding of the syndrome. To improve care, professionals need to recognise and discuss cachexia with heart failure patients and caregivers, supporting them to cope with prognostic implications and develop more effective management strategies.
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Affiliation(s)
- D Fitzsimons
- Queen's University of Belfast , Belfast , United Kingdom of Great Britain & Northern Ireland
| | - M A Carson
- Queen's University of Belfast , Belfast , United Kingdom of Great Britain & Northern Ireland
| | - J Reid
- Queen's University of Belfast , Belfast , United Kingdom of Great Britain & Northern Ireland
| | - L Hill
- Queen's University of Belfast , Belfast , United Kingdom of Great Britain & Northern Ireland
| | - L Dixon
- Royal Victoria Hospital , Belfast , United Kingdom of Great Britain & Northern Ireland
| | - P Donnelly
- Ulster Hospital , Belfast , United Kingdom of Great Britain & Northern Ireland
| | - P Slater
- University of Ulster , Belfast , United Kingdom of Great Britain & Northern Ireland
| | - A Hill
- University of Ulster , Belfast , United Kingdom of Great Britain & Northern Ireland
| | - S E Piper
- King's College Hospital NHS Foundation Trust , London , United Kingdom of Great Britain & Northern Ireland
| | - T A Mcdonagh
- King's College Hospital NHS Foundation Trust , London , United Kingdom of Great Britain & Northern Ireland
| | - G Thompson
- Queen's University of Belfast , Belfast , United Kingdom of Great Britain & Northern Ireland
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Li J, Scarano A, Gonzalez NM, D'Orso F, Yue Y, Nemeth K, Saalbach G, Hill L, de Oliveira Martins C, Moran R, Santino A, Martin C. Biofortified tomatoes provide a new route to vitamin D sufficiency. Nat Plants 2022; 8:611-616. [PMID: 35606499 PMCID: PMC9213236 DOI: 10.1038/s41477-022-01154-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 04/12/2022] [Indexed: 05/04/2023]
Abstract
Poor vitamin D status is a global health problem; insufficiency underpins higher risk of cancer, neurocognitive decline and all-cause mortality. Most foods contain little vitamin D and plants are very poor sources. We have engineered the accumulation of provitamin D3 in tomato by genome editing, modifying a duplicated section of phytosterol biosynthesis in Solanaceous plants, to provide a biofortified food with the added possibility of supplement production from waste material.
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Affiliation(s)
- Jie Li
- John Innes Centre, Norwich Research Park, Norwich, UK
| | - Aurelia Scarano
- Institute of Sciences of Food Production, C.N.R., Unit of Lecce, Lecce, Italy
| | - Nestor Mora Gonzalez
- Recombinant Biopharmaceutical Laboratory, Department of Pharmacology, Biological Sciences Faculty, University of Concepción, Concepción, Chile
| | - Fabio D'Orso
- John Innes Centre, Norwich Research Park, Norwich, UK
- CREA-Research Centre for Genomics and Bioinformatics, Rome, Italy
| | - Yajuan Yue
- John Innes Centre, Norwich Research Park, Norwich, UK
| | | | | | - Lionel Hill
- John Innes Centre, Norwich Research Park, Norwich, UK
| | | | | | - Angelo Santino
- Institute of Sciences of Food Production, C.N.R., Unit of Lecce, Lecce, Italy
| | - Cathie Martin
- John Innes Centre, Norwich Research Park, Norwich, UK.
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Zimmermann L, Knechtle B, Oppermann J, Seffrin A, Vancini RL, Barbosa de Lira CA, Gronek P, Hill L, Andrade MS. The aspects of sex, age and nationality in winter swimming performance. Eur Rev Med Pharmacol Sci 2022; 26:3469-3482. [PMID: 35647827 DOI: 10.26355/eurrev_202205_28841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE Winter swimming is a new sport discipline. Very little is known, however, about the sex differences, origin, participation and performance of the world's best winter swimmers. Therefore, the study aimed to investigate sex differences in performance and age. Furthermore, it should be determined which country has the fastest swimmers, the highest numbers of participants and the most successful age group athletes in winter swimming. SUBJECTS AND METHODS A total of 6,477 results from the 25 m events of the IWSA (International Winter Swimming Association) World Cups from 2016-2020 was collected from the official website of IWSA. Data were analyzed using a generalized linear model (GLM) with a gamma probability distribution and identity link function. The 25 m events were carried out in head-up breaststroke style, freestyle and butterfly. The nationalities were grouped into six groups, the five nationalities with the highest number of participants in the 25 m competitions and one group with the other nationalities. The mean time of 25 m races by sex and country of the total sample was compared. For the top 10 comparisons, the best ten athletes from the six groups were selected. The mean time of each top 10 groups was compared by sex and nationality. RESULTS Men were faster than women for all categories. Swimmers in age group 15-29 years were the fastest, where females were the fastest in age group 15-19 years and males in age group 20-29 years. Women from both Russia and Estonia and men from both Russia and China were the fastest. Both Russian and Chinese males were the fastest in all water categories in the top 10 section in the 25 m events. CONCLUSIONS In summary, males were faster than females in the IWSA World Cups between 2016 and 2020. The age group of 15-29 years old athletes was the most successful while females had their age of peak performance earlier than males. Russian and Estonian males and Russian females were the overall fastest in the 25 m events in all water categories. Future studies should investigate the optimal anthropometric characteristics of male and female winter swimming sprint athletes and whether there are distinct areas in Russia, Estonia and China, where many international winter swimming athletes originate.
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Affiliation(s)
- L Zimmermann
- Institute of Primary Care, University Hospital, Zurich, Switzerland.
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14
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Selmi O, Levitt DE, Muscella A, Ouerghi N, Issaoui I, Abassi W, Hill L, Rosemann T, Bouassida A, Knechtle B. Effect of two incremental intensity field tests on wellness indices, recovery state, and physical enjoyment in soccer players. Eur Rev Med Pharmacol Sci 2022; 26:2279-2287. [PMID: 35442482 DOI: 10.26355/eurrev_202204_28457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
OBJECTIVE Competitive athletes must undergo fitness testing to monitor athlete progress and to create appropriate, progressive training programs. However, fitness testing adds to training stress; therefore, impacts of testing on wellness and recovery must be considered in test selection. This study investigated the effects of two incremental field tests [VAMEVAL test (T-VAM) and 20-m maximum shuttle test (20-m MST)] on wellness, total quality of recovery (TQR) and physical enjoyment (PE) in competitive soccer players. SUBJECTS AND METHODS Twenty-two soccer players (20.9±1.5 years) completed two T-VAM and two 20-m MST in a randomized order on separate days with a 1-week interval between tests. TQR and wellness indices (sleep, fatigue, stress and muscle soreness) measures were collected before and 24 hours after each test. Heart rate (HR) was continuously monitored during each test. Rating of perceived exertion (RPE) and PE were assessed after each test. RESULTS T-VAM resulted in higher PE, TQR and wellness scores than 20-m MST (p<0.05). T-VAM and 20-m MST resulted in similar HR and maximal aerobic speed. For T-VAM, TQR was correlated (p<0.01) with RPE and wellness indices. For 20-m MST, TQR was correlated (p<0.01) with wellness indices. HRmax and RPE were not correlated with wellness indices, TQR or PE. CONCLUSIONS Overall, T-VAM and 20-m MST produced similar aerobic fitness testing results, but athletes responded more favorably to T-VAM. Coaches can use T-VAM for evaluating aerobic fitness while maximizing well-being and physical enjoyment among soccer players.
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Affiliation(s)
- O Selmi
- Research Unit, Sportive Performance and Physical Rehabilitation, High Institute of Sports and Physical Education of Kef, University of Jendouba, Kef, Tunisia.
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15
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Moroney N, Del Bino L, Zhang S, Woodley MTM, Hill L, Wildi T, Wittwer VJ, Südmeyer T, Oppo GL, Vanner MR, Brasch V, Herr T, Del'Haye P. A Kerr polarization controller. Nat Commun 2022; 13:398. [PMID: 35046413 PMCID: PMC8770726 DOI: 10.1038/s41467-021-27933-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 12/23/2021] [Indexed: 11/13/2022] Open
Abstract
Kerr-effect-induced changes of the polarization state of light are well known in pulsed laser systems. An example is nonlinear polarization rotation, which is critical to the operation of many types of mode-locked lasers. Here, we demonstrate that the Kerr effect in a high-finesse Fabry-Pérot resonator can be utilized to control the polarization of a continuous wave laser. It is shown that a linearly-polarized input field is converted into a left- or right-circularly-polarized field, controlled via the optical power. The observations are explained by Kerr-nonlinearity induced symmetry breaking, which splits the resonance frequencies of degenerate modes with opposite polarization handedness in an otherwise symmetric resonator. The all-optical polarization control is demonstrated at threshold powers down to 7 mW. The physical principle of such Kerr effect-based polarization controllers is generic to high-Q Kerr-nonlinear resonators and could also be implemented in photonic integrated circuits. Beyond polarization control, the spontaneous symmetry breaking of polarization states could be used for polarization filters or highly sensitive polarization sensors when operating close to the symmetry-breaking point.
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Affiliation(s)
- N Moroney
- Max Planck Institute for the Science of Light, 91058, Erlangen, Germany
- QOLS, Blackett Laboratory, Imperial College London, SW7 2AZ, London, UK
| | - L Del Bino
- Max Planck Institute for the Science of Light, 91058, Erlangen, Germany
| | - S Zhang
- Max Planck Institute for the Science of Light, 91058, Erlangen, Germany
| | - M T M Woodley
- Max Planck Institute for the Science of Light, 91058, Erlangen, Germany
- QOLS, Blackett Laboratory, Imperial College London, SW7 2AZ, London, UK
- SUPA and Department of Physics, Heriot-Watt, Edinburgh, EH14 4AS, UK
| | - L Hill
- Max Planck Institute for the Science of Light, 91058, Erlangen, Germany
- SUPA and Department of Physics, University of Strathclyde, Glasgow, G4 0NG, Scotland
| | - T Wildi
- Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - V J Wittwer
- Laboratoire Temps-Fréquence, Université de Neuchâtel, CH-2000, Neuchâtel, Switzerland
| | - T Südmeyer
- Laboratoire Temps-Fréquence, Université de Neuchâtel, CH-2000, Neuchâtel, Switzerland
| | - G-L Oppo
- SUPA and Department of Physics, University of Strathclyde, Glasgow, G4 0NG, Scotland
| | - M R Vanner
- QOLS, Blackett Laboratory, Imperial College London, SW7 2AZ, London, UK
| | - V Brasch
- Swiss Center for Electronics and Microtechnology (CSEM), Time and Frequency, Neuchâtel, Switzerland
| | - T Herr
- Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- Physics Department, Universität Hamburg, 22761, Hamburg, Germany
| | - P Del'Haye
- Max Planck Institute for the Science of Light, 91058, Erlangen, Germany.
- Department of Physics, Friedrich Alexander University Erlangen-Nuremberg, 91058, Erlangen, Germany.
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16
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Cassidy J, McNamara S, Gorry S, Hughes R, Vajda J, Hill L, Akers M, Greene L, Ong T. 144: Quality improvement process to improve home spirometer use in a pediatric CF care center. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01569-1] [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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17
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Hill L, Bruns J, Zustiak SP. Hydrogel matrix presence and composition influence drug responses of encapsulated glioblastoma spheroids. Acta Biomater 2021; 132:437-447. [PMID: 34010694 DOI: 10.1016/j.actbio.2021.05.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 04/30/2021] [Accepted: 05/06/2021] [Indexed: 12/26/2022]
Abstract
Glioblastoma multiforme (GBM) is the most aggressive brain tumor with median patient survival of 12-15 months. To facilitate treatment development, bioengineered GBM models that adequately recapitulate the in vivo tumor microenvironment are needed. Matrix-encapsulated multicellular spheroids represent such model because they recapitulate solid tumor characteristics, such as dimensionality, cell-cell, and cell-matrix interactions. Yet, there is no consensus as to which matrix properties are key to improving the predictive capacity of spheroid-based drug screening platforms. We used a hydrogel-encapsulated GBM spheroid model, where matrix properties were independently altered to investigate their effect on GBM spheroid characteristics and drug responsiveness. We focused on hydrogel degradability, tuned via enzymatically degradable crosslinkers, and hydrogel adhesiveness, tuned via integrin ligands. We observed increased cellular infiltration of GBM spheroids and increased resistance to temozolomide in degradable, adhesive hydrogels compared to spheroids in non-degradable, non-adhesive hydrogels or to free-floating spheroids. Further, a higher infiltration index was noted for spheroids in adhesive compared to non-adhesive degradable hydrogels. For spheroids in degradable hydrogels, we determined that infiltrating cells were more susceptible to temozolomide compared to cells in the spheroid core. The temozolomide susceptibility of the infiltrating cells was independent of integrin adhesion. We could not attribute differential drug responses to differential cellular proliferation or to limited drug penetration into the hydrogel matrix. Our results suggest that cell-matrix interactions guide GBM spheroid drug responsiveness and that further elucidation of these interactions could enable the engineering of more predictive drug screening platforms. STATEMENT OF SIGNIFICANCE: Glioblastoma multiforme (GBM) multicellular spheroids hold promise for drug screening and development as they better mimic in vivo cellular responses to therapeutics compared to monolayer cultures. Traditional spheroid models lack an external extracellular matrix (ECM) and fail to mimic the mechanical, physical, and biochemical cues seen in the GBM microenvironment. While embedding spheroids in hydrogel matrices has been shown to better recapitulate the tumor microenvironment, there is still limited understanding as to the key matrix properties that govern spheroid responsiveness to drugs. Here we decoupled and independently altered matrix properties such as degradability, via an enzymatically degradable peptide crosslinker, and cell adhesion, via an adhesive ligand, giving further insight into what matrix properties contribute to GBM chemoresistance.
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18
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Cassidy L, Hill L, Fitzsimons D. The feasibility and acceptability of a virtual six-week psychoeducational intervention for carers of patients with heart failure. Eur J Cardiovasc Nurs 2021. [DOI: 10.1093/eurjcn/zvab060.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public Institution(s). Main funding source(s): Northern Ireland Chest Heart and Stroke Queen"s University Belfast
Background
Globally, the number of individuals living with heart failure (HF) is increasing, with many living with additional comorbidities and complex health needs. Carers play an invaluable role in helping the patient with self-care at home, taking on the key responsibility for tasks critical in the management and monitoring of HF symptoms. As a result, carers can frequently experience poor quality of life attributed to this caring role, whilst simultaneously managing health problems of their own. Evidence has shown that many of these carers have unmet educational, social and emotional needs, that require urgent support and information.
Purpose
To assess the feasibility and acceptability of a six-week psychoeducational intervention tailored towards carers of patients with HF.
Methods
The psychoeducational intervention was co-produced with involvement of carers, HF professionals and researchers. It was delivered over six weeks, with four support group sessions and an information booklet tailored specifically to the needs of carers. Carers were identified by the clinical HF team or through social media, with informed consent obtained before inclusion. Due to COVID-19 regulations, the support group sessions were delivered virtually via a secure online app (Zoom). Each session involved a member of the interdisciplinary research team and covered topics including: 1. Understanding HF, 2. Personal wellbeing, 3. Communication and Support, and 4. Practical skills to help manage HF. Validated questionnaires (SF-12, HADS,ZBI,PSS,MSPSS,CPS) measuring carer related outcomes were completed at baseline, at 6 weeks and 3 months post intervention. Qualitative data from focus group post-intervention explored the acceptability of the intervention. Data was analysed using SPSS (version 27) and NVivo (version 11).
Results
Nine participants consented to participate, six of which were recruited from heart failure clinics, and three volunteered in response to social media advertisements. Two participants, due to personal health reasons, withdrew consent and did not attend the support group sessions. All carers were female, mean age 61 years, four spouses and three adult children. Preliminary qualitative findings show carers recalled information and advice included in the intervention as useful and easy to understand. With the intervention being described as, "a dimension that doesn’t already exist". The majority of participants (n = 5) preferred the convenience and flexibility of the online approach to the intervention, however some participants (n = 2) felt that they would have benefitted more from an in-person approach. A second support group is currently underway.
Conclusions
Preliminary results are promising and indicate that carers responded well to an online psychoeducational intervention.
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Affiliation(s)
- L Cassidy
- Queen"s University of Belfast, School of Nursing and Midwifery , Belfast, United Kingdom of Great Britain & Northern Ireland
| | - L Hill
- Queen"s University of Belfast, School of Nursing and Midwifery , Belfast, United Kingdom of Great Britain & Northern Ireland
| | - D Fitzsimons
- Queen"s University of Belfast, School of Nursing and Midwifery , Belfast, United Kingdom of Great Britain & Northern Ireland
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19
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Palant A, Zippel-Schultz B, Ski CF, Brandts J, Eurlings C, Furtado Da Luz Brzychcyk E, Hill L, Dixon L, Fitzsimons D, Thompson D, Mueller-Wieland D, Schuett KA, Hoedemakers T, Brunner La-Rocca HP, Helms TM. Understanding needs and expectations of heart failure patients and their caregivers regarding digital health - the PASSION-HF project. Eur J Cardiovasc Nurs 2021. [DOI: 10.1093/eurjcn/zvab060.036] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – EU funding. Main funding source(s): INTERREG-NWE
Background/Introduction
Current heart failure (HF) healthcare provision is not sufficient. Due to demographic changes and subsequent increases in comorbidities, along with unequal distribution of medical care in rural areas, alternative approaches need be sought. The use of eHealth applications has potential to enable patients to become more self-sufficient. The "PASSION-HF" project aims to develop an interactive decision-making system – a virtual doctor – that provides solutions based on current guidelines and artificial intelligence. Patient independence is maximized through 24/7 access to personalized HF-management. Furthermore, the application defines decision points, where medical professionals need to be included.
Purpose
To understand needs and expectations of HF patients and their informal caregivers in regard to a virtual doctor.
Methods
We conducted an exploratory mixed-methods study within the Netherlands, UK, Ireland and Germany. Semi-structured qualitative interviews were supplemented by a standardized questionnaire. The interviews focused on i) acceptance and motivation to use a virtual doctor and ii) experience and perception of current health care provision. The interviews were analysed using the content analysis according to Mayring (2010) with the help of "ATLAS.TI" software. Additional information about the role of informal caregivers, technology acceptance and decision-making processes was collected via questionnaires.
Results
A total of 49 patients and 33 informal caregivers were interviewed. Most patients were male (76%), aged between 60 and 69 years (43%). Three key themes were identified in regard to an interactive decision-making system: 1) Reassurance, because patients felt uncertain about their condition and their symptoms, they had a strong desire for an application that could monitor their health 24/7, was able to spot deteriorations, before they occured and gave them instant feedback about their current health status; 2) Personalized advice, e.g. patients wanted the virtual doctor to adapt medication, sport activities and food recommendations to their current health status; and 3) Transparency, e.g. patients wanted to know, where the recommendations are coming from and justifications for management modifications. Interview findings also identified that the HF-nurses play a significant role in the care and management of the condition. Across all countries with HF-nurses, they were the primary point of contact, when patients had any HF related concerns.
Conclusion
The findings provide valuable information for the development and implementation of eHealth solutions. Patients want reassurance, independently of the availability of healthcare services, combined with personalized advice regarding day-to-day management of their HF. For the next step, we are planning a multicentre clinical trial to test the prototype of the application. Here all decisions are examined by a clinical committee and benefits are evaluated.
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Affiliation(s)
- A Palant
- German foundation for the chronically III, Berlin, Germany
| | | | - CF Ski
- University of Suffolk, Integrated Care Academy, Ipswich, United Kingdom of Great Britain & Northern Ireland
| | - J Brandts
- RWTH University Hospital Aachen, Department of Cardiology, Aachen, Germany
| | - C Eurlings
- Laurentius Hospital Roermond, Cardiology Department, Roermond, Netherlands (The)
| | | | - L Hill
- Belfast Health and Social Care Trust, Belfast, United Kingdom of Great Britain & Northern Ireland
| | - L Dixon
- Belfast Health and Social Care Trust, Belfast, United Kingdom of Great Britain & Northern Ireland
| | - D Fitzsimons
- Belfast Health and Social Care Trust, Belfast, United Kingdom of Great Britain & Northern Ireland
| | - D Thompson
- Belfast Health and Social Care Trust, Belfast, United Kingdom of Great Britain & Northern Ireland
| | - D Mueller-Wieland
- RWTH University Hospital Aachen, Department of Cardiology, Aachen, Germany
| | - KA Schuett
- RWTH University Hospital Aachen, Department of Cardiology, Aachen, Germany
| | | | - H-P Brunner La-Rocca
- Maastricht University Medical Centre (MUMC), Department of Cardiology, Maastricht, Netherlands (The)
| | - TM Helms
- German foundation for the chronically III, Berlin, Germany
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20
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Carson M, Reid J, Hill L, Dixon L, Donnelly P, Slater P, Hill A, Fitzsimons D. Prevalence and effect of cardiac cachexia in advanced heart failure patients living in northern ireland. Eur J Cardiovasc Nurs 2021. [DOI: 10.1093/eurjcn/zvab060.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public Institution(s). Main funding source(s): Northern Ireland Chest Heart and Stroke
Background/Introduction: Cardiac cachexia (CC) is a multifactorial wasting syndrome, resulting in significant weight loss and reduction in muscle mass. This is reflected in a detrimental effect on the patients’ physical condition, quality of life and increases the patient’s risk of premature death. Nonetheless, cardiac cachexia remains frequently unrecognised in clinical practice and therefore understudied.
Purpose
To determine the prevalence and effect of cardiac cachexia in 200 patients with advanced heart failure (NYHA class III-IV) living in Northern Ireland.
Methods
A mixed methods cross sectional study of patients recruited from a regional heart failure centre. A total of 200 patients with NYHA class III-IV heart failure were consented, enrolled and detailed data collected from their records. Anthropometric measures were taken (i.e. measures of lean muscle mass and fat tissue) and each individual completed three validated questionnaires - EQ-5D-5L (quality of life), FACIT-Fatigue and FAACT (various wellbeing subscales).
Results
This population was predominately male (65.5%), with an average age of 74.4 years. Of the 200 NYHA class III-IV patients recruited, 30 were identified as cachectic (15%) Physically, cachectic patients were approximately 25 kg lighter than non-cachectic patients (p < 0.01) with an average BMI of 21.8 ± 4.4. The cachectic group showed significant reductions in mid-upper arm circumference (p < 0.01), skinfold thickness (p < 0.01) and upper arm fat area (p < 0.01), in comparison to the non-cachectic group. Measures of muscle mass were reduced, for example upper arm muscle circumference and area (p < 0.01), as well as grip strength (p < 0.01 for both right and left hands). Quality of life results from the EQ-5D-5L [see figure part b)] indicated an overall reduction for the cachectic group (p = 0.047). Of the EQ-5D-5L subscales, mobility and ‘usual activities’ were significantly reduced (p = 0.02 and p < 0.01 respectively), highlighting a significant change in the daily routine and ability of these patients. The FACIT-Fatigue questionnaire showed cachectic patients to be significantly more fatigued (p < 0.01) [see figure part a)], whilst the FAACT demonstrated reduced physical wellbeing (p = 0.02) and greater issues with diet and appetite (p < 0.01).
Conclusions
This is the first prevalence study of cardiac cachexia within Northern Ireland. The 15% prevalence rate shows that the syndrome is relatively common in the advanced heart failure population. Cardiac Cachexia has severe physical consequences, attributed to an individual’s weight loss in both fat and muscle tissue. Such changes may explain the subsequent decrease in mobility and the ability of these patients to conduct their ‘usual activities’. Increased fatigue, reduced physical wellbeing and issues with diet and appetite only intensify these dire physical effects. It is hoped that these results will highlight the impact of this syndrome and promote targeted interventions.
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Affiliation(s)
- M Carson
- Queen"s University of Belfast, Belfast, United Kingdom of Great Britain & Northern Ireland
| | - J Reid
- Queen"s University of Belfast, Belfast, United Kingdom of Great Britain & Northern Ireland
| | - L Hill
- Queen"s University of Belfast, Belfast, United Kingdom of Great Britain & Northern Ireland
| | - L Dixon
- Belfast Health and Social Care Trust, Belfast, United Kingdom of Great Britain & Northern Ireland
| | - P Donnelly
- South Eastern Health and Social Care Trust, Belfast, United Kingdom of Great Britain & Northern Ireland
| | - P Slater
- University of Ulster, Belfast, United Kingdom of Great Britain & Northern Ireland
| | - A Hill
- University of Ulster, Belfast, United Kingdom of Great Britain & Northern Ireland
| | - D Fitzsimons
- Queen"s University of Belfast, Belfast, United Kingdom of Great Britain & Northern Ireland
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21
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Corredor-Moreno P, Minter F, Davey PE, Wegel E, Kular B, Brett P, Lewis CM, Morgan YML, Macías Pérez LA, Korolev AV, Hill L, Saunders DGO. The branched-chain amino acid aminotransferase TaBCAT1 modulates amino acid metabolism and positively regulates wheat rust susceptibility. Plant Cell 2021; 33:1728-1747. [PMID: 33565586 PMCID: PMC8254495 DOI: 10.1093/plcell/koab049] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 02/02/2021] [Indexed: 05/21/2023]
Abstract
Plant pathogens suppress defense responses to evade recognition and promote successful colonization. Although identifying the genes essential for pathogen ingress has traditionally relied on screening mutant populations, the post-genomic era provides an opportunity to develop novel approaches that accelerate identification. Here, RNA-seq analysis of 68 pathogen-infected bread wheat (Triticum aestivum) varieties, including three (Oakley, Solstice and Santiago) with variable levels of susceptibility, uncovered a branched-chain amino acid aminotransferase (termed TaBCAT1) as a positive regulator of wheat rust susceptibility. We show that TaBCAT1 is required for yellow and stem rust infection and likely functions in branched-chain amino acid (BCAA) metabolism, as TaBCAT1 disruption mutants had elevated BCAA levels. TaBCAT1 mutants also exhibited increased levels of salicylic acid (SA) and enhanced expression of associated defense genes, indicating that BCAA regulation, via TaBCAT1, has a key role in SA-dependent defense activation. We also identified an association between the levels of BCAAs and resistance to yellow rust infection in wheat. These findings provide insight into SA-mediated defense responses in wheat and highlight the role of BCAA metabolism in the defense response. Furthermore, TaBCAT1 could be manipulated to potentially provide resistance to two of the most economically damaging diseases of wheat worldwide.
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Affiliation(s)
| | | | | | - Eva Wegel
- John Innes Centre, Norwich Research Park, Norwich, UK
| | - Baldeep Kular
- John Innes Centre, Norwich Research Park, Norwich, UK
| | - Paul Brett
- John Innes Centre, Norwich Research Park, Norwich, UK
| | - Clare M Lewis
- John Innes Centre, Norwich Research Park, Norwich, UK
| | | | - Luis A Macías Pérez
- John Innes Centre, Norwich Research Park, Norwich, UK
- Aix Marseille Université, CNRS, IRD, College de France, CEREGE, Aix-en-Provence, France
| | | | - Lionel Hill
- John Innes Centre, Norwich Research Park, Norwich, UK
| | - Diane G O Saunders
- John Innes Centre, Norwich Research Park, Norwich, UK
- Author for correspondence: (D.G.O.S.)
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22
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Li Y, Leveau A, Zhao Q, Feng Q, Lu H, Miao J, Xue Z, Martin AC, Wegel E, Wang J, Orme A, Rey MD, Karafiátová M, Vrána J, Steuernagel B, Joynson R, Owen C, Reed J, Louveau T, Stephenson MJ, Zhang L, Huang X, Huang T, Fan D, Zhou C, Tian Q, Li W, Lu Y, Chen J, Zhao Y, Lu Y, Zhu C, Liu Z, Polturak G, Casson R, Hill L, Moore G, Melton R, Hall N, Wulff BBH, Doležel J, Langdon T, Han B, Osbourn A. Subtelomeric assembly of a multi-gene pathway for antimicrobial defense compounds in cereals. Nat Commun 2021; 12:2563. [PMID: 33963185 PMCID: PMC8105312 DOI: 10.1038/s41467-021-22920-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [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: 01/04/2021] [Accepted: 04/07/2021] [Indexed: 02/06/2023] Open
Abstract
Non-random gene organization in eukaryotes plays a significant role in genome evolution. Here, we investigate the origin of a biosynthetic gene cluster for production of defence compounds in oat-the avenacin cluster. We elucidate the structure and organisation of this 12-gene cluster, characterise the last two missing pathway steps, and reconstitute the entire pathway in tobacco by transient expression. We show that the cluster has formed de novo since the divergence of oats in a subtelomeric region of the genome that lacks homology with other grasses, and that gene order is approximately colinear with the biosynthetic pathway. We speculate that the positioning of the late pathway genes furthest away from the telomere may mitigate against a 'self-poisoning' scenario in which toxic intermediates accumulate as a result of telomeric gene deletions. Our investigations reveal a striking example of adaptive evolution underpinned by remarkable genome plasticity.
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Affiliation(s)
- Yan Li
- National Centre for Gene Research, CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Centre of Excellence for Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences (CAS), Shanghai, China
| | | | - Qiang Zhao
- National Centre for Gene Research, CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Centre of Excellence for Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences (CAS), Shanghai, China
| | - Qi Feng
- National Centre for Gene Research, CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Centre of Excellence for Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences (CAS), Shanghai, China
| | - Hengyun Lu
- National Centre for Gene Research, CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Centre of Excellence for Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences (CAS), Shanghai, China
| | - Jiashun Miao
- National Centre for Gene Research, CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Centre of Excellence for Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences (CAS), Shanghai, China
| | - Zheyong Xue
- John Innes Centre, Norwich Research Park, Norwich, UK
| | | | - Eva Wegel
- John Innes Centre, Norwich Research Park, Norwich, UK
| | - Jing Wang
- John Innes Centre, Norwich Research Park, Norwich, UK
| | | | | | - Miroslava Karafiátová
- Institute of Experimental Botany of the Czech Academy of Sciences, Centre of the Region Haná for Biotechnological and Agricultural Research, Olomouc, Czech Republic
| | - Jan Vrána
- Institute of Experimental Botany of the Czech Academy of Sciences, Centre of the Region Haná for Biotechnological and Agricultural Research, Olomouc, Czech Republic
| | | | - Ryan Joynson
- Earlham Institute, Norwich Research Park, Norwich, UK
| | | | - James Reed
- John Innes Centre, Norwich Research Park, Norwich, UK
| | | | | | - Lei Zhang
- National Centre for Gene Research, CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Centre of Excellence for Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences (CAS), Shanghai, China
| | - Xuehui Huang
- National Centre for Gene Research, CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Centre of Excellence for Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences (CAS), Shanghai, China
| | - Tao Huang
- National Centre for Gene Research, CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Centre of Excellence for Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences (CAS), Shanghai, China
| | - Danling Fan
- National Centre for Gene Research, CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Centre of Excellence for Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences (CAS), Shanghai, China
| | - Congcong Zhou
- National Centre for Gene Research, CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Centre of Excellence for Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences (CAS), Shanghai, China
| | - Qilin Tian
- National Centre for Gene Research, CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Centre of Excellence for Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences (CAS), Shanghai, China
| | - Wenjun Li
- National Centre for Gene Research, CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Centre of Excellence for Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences (CAS), Shanghai, China
| | - Yiqi Lu
- National Centre for Gene Research, CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Centre of Excellence for Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences (CAS), Shanghai, China
| | - Jiaying Chen
- National Centre for Gene Research, CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Centre of Excellence for Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences (CAS), Shanghai, China
| | - Yan Zhao
- National Centre for Gene Research, CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Centre of Excellence for Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences (CAS), Shanghai, China
| | - Ying Lu
- National Centre for Gene Research, CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Centre of Excellence for Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences (CAS), Shanghai, China
| | - Chuanrang Zhu
- National Centre for Gene Research, CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Centre of Excellence for Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences (CAS), Shanghai, China
| | - Zhenhua Liu
- Joint Center for Single Cell Biology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Guy Polturak
- John Innes Centre, Norwich Research Park, Norwich, UK
| | | | - Lionel Hill
- John Innes Centre, Norwich Research Park, Norwich, UK
| | - Graham Moore
- John Innes Centre, Norwich Research Park, Norwich, UK
| | - Rachel Melton
- John Innes Centre, Norwich Research Park, Norwich, UK
| | - Neil Hall
- Earlham Institute, Norwich Research Park, Norwich, UK
| | | | - Jaroslav Doležel
- Institute of Experimental Botany of the Czech Academy of Sciences, Centre of the Region Haná for Biotechnological and Agricultural Research, Olomouc, Czech Republic
| | - Tim Langdon
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Gogerddan, Aberystwyth, Ceredigion, SY23 3EE, UK
| | - Bin Han
- National Centre for Gene Research, CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Centre of Excellence for Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences (CAS), Shanghai, China.
| | - Anne Osbourn
- John Innes Centre, Norwich Research Park, Norwich, UK.
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23
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Capstaff NM, Morrison F, Cheema J, Brett P, Hill L, Muñoz-García JC, Khimyak YZ, Domoney C, Miller AJ. Fulvic acid increases forage legume growth inducing preferential up-regulation of nodulation and signalling-related genes. J Exp Bot 2020; 71:5689-5704. [PMID: 32599619 PMCID: PMC7501823 DOI: 10.1093/jxb/eraa283] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 06/15/2020] [Indexed: 05/27/2023]
Abstract
The use of potential biostimulants is of broad interest in plant science for improving yields. The application of a humic derivative called fulvic acid (FA) may improve forage crop production. FA is an uncharacterized mixture of chemicals and, although it has been reported to increase growth parameters in many species including legumes, its mode of action remains unclear. Previous studies of the action of FA have lacked appropriate controls, and few have included field trials. Here we report yield increases due to FA application in three European Medicago sativa cultivars, in studies which include the appropriate nutritional controls which hitherto have not been used. No significant growth stimulation was seen after FA treatment in grass species in this study at the treatment rate tested. Direct application to bacteria increased Rhizobium growth and, in M. sativa trials, root nodulation was stimulated. RNA transcriptional analysis of FA-treated plants revealed up-regulation of many important early nodulation signalling genes after only 3 d. Experiments in plate, glasshouse, and field environments showed yield increases, providing substantial evidence for the use of FA to benefit M. sativa forage production.
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Affiliation(s)
- Nicola M Capstaff
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich, UK
| | - Freddie Morrison
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich, UK
| | - Jitender Cheema
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich, UK
| | - Paul Brett
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich, UK
| | - Lionel Hill
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich, UK
| | - Juan C Muñoz-García
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich, UK
| | - Yaroslav Z Khimyak
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich, UK
| | - Claire Domoney
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich, UK
| | - Anthony J Miller
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich, UK
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24
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Neumann M, Prahl S, Caputi L, Hill L, Kular B, Walter A, Patallo EP, Milbredt D, Aires A, Schöpe M, O'Connor S, van Pée KH, Ludwig-Müller J. Hairy root transformation of Brassica rapa with bacterial halogenase genes and regeneration to adult plants to modify production of indolic compounds. Phytochemistry 2020; 175:112371. [PMID: 32283438 DOI: 10.1016/j.phytochem.2020.112371] [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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 03/31/2020] [Accepted: 04/01/2020] [Indexed: 06/11/2023]
Abstract
During the last years halogenated compounds have drawn a lot of attention. Metabolites with one or more halogen atoms are often more active than their non-halogenated derivatives like indole-3-acetic acid (IAA) and 4-Cl-IAA. Within this work, bacterial flavin-dependent tryptophan halogenase genes were inserted into Brassica rapa ssp. pekinensis (Chinese cabbage) with the aim to produce novel halogenated indole compounds. It was investigated which tryptophan-derived indole metabolites, such as indole glucosinolates or potential degradation products can be synthesized by the transgenic root cultures. In vivo and in vitro activity of halogenases heterologously produced was shown and the production of chlorinated tryptophan in transgenic root lines was confirmed. Furthermore, chlorinated indole-3-acetonitrile (Cl-IAN) was detected. Other tryptophan-derived indole metabolites, such as IAA or indole glucosinolates were not found in the transgenic roots in a chlorinated form. The influence of altered growth conditions on the amount of produced chlorinated compounds was evaluated. We found an increase in Cl-IAN production at low temperatures (8 °C), but otherwise no significant changes were observed. Furthermore, we were able to regenerate the wild type and transgenic root cultures to adult plants, of which the latter still produced chlorinated metabolites. Therefore, we conclude that the genetic information had been stably integrated. The transgenic plants showed a slightly altered phenotype compared to plants grown from seeds since they also still expressed the rol genes. By this approach we were able to generate various stably transformed plant materials from which it was possible to isolate chlorinated tryptophan and Cl-IAN.
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Affiliation(s)
- Madeleine Neumann
- Faculty of Biology, Institute of Botany, Technische Universität Dresden, 01062, Dresden, Germany
| | | | - Lorenzo Caputi
- Department of Natural Product Synthesis, Max Planck Institute for Chemical Ecology, 07745, Jena, Germany
| | - Lionel Hill
- John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, United Kingdom
| | - Baldeep Kular
- John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, United Kingdom
| | - Antje Walter
- Faculty of Biology, Institute of Botany, Technische Universität Dresden, 01062, Dresden, Germany
| | - Eugenio P Patallo
- Biochemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Daniela Milbredt
- Biochemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Alfredo Aires
- Centre for the Research and Technology for Agro-Environment and Biological Sciences, CITAB, University of Trás-os-Montes e Alto Douro, 5001-801, Vila Real, Portugal
| | | | - Sarah O'Connor
- Department of Natural Product Synthesis, Max Planck Institute for Chemical Ecology, 07745, Jena, Germany
| | | | - Jutta Ludwig-Müller
- Faculty of Biology, Institute of Botany, Technische Universität Dresden, 01062, Dresden, Germany.
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25
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Popov J, Hartung E, Hill L, Pai N. A226 CHILD AND PARENT PERCEPTIONS OF FAECAL MICROBIOTA TRANSPLANT (FMT): QUALITATIVE PERSPECTIVES FROM PARTICIPANTS IN A TRIAL OF FMT FOR PEDIATRIC ULCERATIVE COLITIS. J Can Assoc Gastroenterol 2020. [DOI: 10.1093/jcag/gwz047.225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Fecal microbiota transplant (FMT) is being increasingly studied across a range of therapeutic indications, including ulcerative colitis (UC). Pediatric patients may have unique responses to microbiome-based therapeutics, given their younger age, fewer comorbidities, and greater susceptibility to medication-related side effects.
Aims
We recently conducted the first pilot RCT of FMT in Canada for the treatment of pediatric ulcerative colitis (PediFETCh Trial) and conducted qualitative interviews post-study of participants and their parents. This study aims to describe the experience and perceptions of children who received FMT, and their parents.
Methods
Patients enrolled in the PediFETCh Trial (ClinicalTrials.gov: NCT02487238) and their parents were invited to participate in face-to-face, semi-structured interviews. Interviews were audiotaped, transcribed, and analyzed using open coding (NVivo 12 Pro).
Results
8 patients and 8 parents were interviewed. Our data has been summarized into 4 domains and 11 composite themes (Table 1). Most patients and parents saw FMT as a natural treatment. Pre-treatment, patients were concerned with receiving “someone else’s poo” and physical discomfort, while parents were concerned with transmission of enteric infections or psychiatric diseases. Both felt their decision to pursue FMT was influenced by frustration with previous lack of response to medications and a fear of medication side effects. Post-treatment, most patients and families expressed no concerns over potential future side effects as a result of the FMT, and all patients reported feeling “completely normal”. Patients were split between preferring FMT or medication, with convenience of medication being an important factor, while others favored FMT for its perceived naturality and symptomatic improvements. For most families, natural therapies and diet played an important role in influencing their decision to pursue FMT; however, several parents reported that alternative healthcare practitioners did not support their desire to pursue FMT.
Conclusions
The study offers valuable insights into pediatric patients’ and parents’ experiences receiving FMT across several themes. Our results suggest a high rate of acceptance and interest in FMT research by pediatric patients and their parents. These findings suggest strategies to improve future delivery of FMT in clinical trials, and should support inclusion of children in FMT-based studies.
Funding Agencies
Hamilton Health Sciences New Investigator Fund (2015, Spring); Innovation Fund of the Alternative Funding Plan for the Academic Health Sciences Centres of Ontario (HAH-17-002)
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Affiliation(s)
- J Popov
- Department of Paediatrics, Division of Paediatric Gastroenterology & Nutrition, McMaster University, Hamilton, ON, Canada
| | - E Hartung
- Department of Paediatrics, Division of Paediatric Gastroenterology & Nutrition, McMaster University, Hamilton, ON, Canada
| | - L Hill
- Department of Paediatrics, Division of Paediatric Gastroenterology & Nutrition, McMaster University, Hamilton, ON, Canada
| | - N Pai
- Department of Paediatrics, Division of Paediatric Gastroenterology & Nutrition, McMaster University, Hamilton, ON, Canada
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26
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Hill L, Faraz M, Hartung E, Popov J, Pai N. A242 EXERCISE AND PHYSICAL ACTIVITY IN PEDIATRIC INFLAMMATORY BOWEL DISEASE: A SYSTEMATIC REVIEW AND RECOMMENDATIONS. J Can Assoc Gastroenterol 2020. [DOI: 10.1093/jcag/gwz047.241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Inflammatory bowel disease (IBD) is a chronic life-long condition affecting 0.25% of the North American population. Childhood onset IBD is particularly aggressive, with disease often characterised by poor growth, severe unpredictable abdominal pain and frequent school absences. Treatment involves lifelong medications, which do not always resolve symptoms and carry increased cumulative risks of infections, malignancy, or other adverse effects. Exercise has been suggested as a method of ameliorating some of the symptoms associated with IBD. To date, few studies have investigated the role of exercise and physical activity in paediatric IBD patients.
Aims
We conducted a systematic review assessing the role of exercise and physical activity in paediatric IBD.
Methods
This Level III systematic review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) guidelines. An electronic database search of Pubmed, Google Scholar, and Cochrane used the search terms “(physical activity or exercise), (Inflammatory Bowel Disease), and (children or paediatric)”. Of the 1458 articles identified during the two rounds of review, only 21 articles met final inclusion criteria.
Results
Three main themes emerged from the review: 1) prescriptive exercise and physical activity ameliorated symptoms IBD and improved physical well-being, 2) patients who actively engage in exercise and physical activity show improved markers of inflammation and decreased future risk of disease, 3) exercise and physical activity improves the mental health and well-being of paediatric IBD patients. The results recommended 30–60 minutes, 6 times per week of mild to moderate aerobic exercise activity. It was noted that vigorous and high intensity exercise was well-tolerated by most IBD patients. Further, exercise prescription should be tailored to individual needs.
Conclusions
Exercise and physical activity improves mental and physical health and well-being of paediatric IBD patients, including decreasing the risk of future disease exacerbation in patients with mild to moderate disease activity. Clinicians and practitioners should consider actively prescribing exercise and physical activity to IBD patients as part of a standard treatment algorithm.
Funding Agencies
None
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Affiliation(s)
- L Hill
- Department of Exercise Science and Sports Medicine, Faculty of Health Sciences, Cape Town, South Africa
| | - M Faraz
- Applied Clinical Research Program, Department of Health Sciences, Hamilton, ON, Canada
| | - E Hartung
- Division of Gastroenterology & Nutrition, Department of Pediatrics, McMaster University, Hamilton, ON, Canada
| | - J Popov
- Division of Gastroenterology & Nutrition, Department of Pediatrics, McMaster University, Hamilton, ON, Canada
| | - N Pai
- Division of Gastroenterology & Nutrition, Department of Pediatrics, McMaster University, Hamilton, ON, Canada
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27
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Pai N, Popov J, Hartung E, Hill L, Thabane L, Lee CH, Godin D, Grzywacz K, Moayyedi P. A227 RESULTS OF THE FIRST PAEDIATRIC RANDOMIZED-CONTROLLED PILOT STUDY OF FAECAL MICROBIOTA TRANSPLANT FOR ACTIVE ULCERATIVE COLITIS (PEDIFETCH TRIAL). J Can Assoc Gastroenterol 2020. [DOI: 10.1093/jcag/gwz047.226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- N Pai
- Div. of Paediatric Gastroenterology & Nutrition, McMaster University, Hamilton, ON, Canada
| | - J Popov
- Div. of Paediatric Gastroenterology & Nutrition, McMaster University, Hamilton, ON, Canada
| | - E Hartung
- Div. of Paediatric Gastroenterology & Nutrition, McMaster University, Hamilton, ON, Canada
| | - L Hill
- Div. of Paediatric Gastroenterology & Nutrition, McMaster University, Hamilton, ON, Canada
| | - L Thabane
- Dept. of Health Research Methods, Evidence & Impact, McMaster University, Hamilton, ON, Canada
| | - C H Lee
- Dept. of Pathology & Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - D Godin
- Div. de Gastroentérologie, Hépatologie & Nutrition, Université de Montréal, Montreal, QC, Canada
| | - K Grzywacz
- Div. de Gastroentérologie, Hépatologie & Nutrition, Université de Montréal, Montreal, QC, Canada
| | - P Moayyedi
- Dept. of Medicine, McMaster University, Hamilton, ON, Canada
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28
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Hill L, Nikolaidis PT, Knechtle B. Swimming during COVID-19: Operational recommendations and considerations for South African swimming venues. S Afr J Sports Med 2020; 32:v32i1a8993. [PMID: 36818974 PMCID: PMC9924530 DOI: 10.17159/2078-516x/2020/v32i1a8993] [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] [Indexed: 11/05/2022] Open
Abstract
Swimming is one of the most popular recreational activities in South Africa. Since the emergence of the Coronavirus disease 2019 (COVID-19), South Africa imposed one of the strictest lockdown measures to contain and control the spread of the virus. These measures included the closure of gyms, fitness centres and swimming pools across the country. However, as the restrictions begin to ease, it is important to consider how swimming facilities can reopen whilst simultaneously ensuring appropriate measures are in place to reduce COVID-19 infections. Outlined are recommendations and considerations for swimming facilities in South Africa. Currently there is no evidence to suggest that COVID-19 transmission to humans is possible through water, making swimming one of the safer options for physical activity indoors. However, participation is still not without risk and compliance with government mandates and public health officials take precedent over the recommendations outlined in this article.
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Affiliation(s)
- L Hill
- Department of Exercise Science and Sports Medicine, University of Cape Town, Cape Town,
South Africa,Division of Gastroenterology and Nutrition, Department of Paediatrics, McMaster University, Hamilton,
Canada
| | - P T Nikolaidis
- School of Health and Caring Sciences, University of West Attica, Athens,
Greece
| | - B Knechtle
- Institute of Primary Care, University of Zurich, Zurich,
Switzerland,Medbase St. Gallen Am Vadianplatz, St. Gallen,
Switzerland
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29
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Jeyaprakash P, Khor L, Madan K, Sivapathan S, Hill L, Robledo K, Hallani H, Roy P, Ellenberger K, Jepson N, Roy J, Pressley L, Patal S, Thomas L, French J, Burgess S. 887 STEMI in the Time of COVID-19: NSW Data. Heart Lung Circ 2020. [PMCID: PMC8435296 DOI: 10.1016/j.hlc.2020.09.894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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30
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Thole V, Bassard JE, Ramírez-González R, Trick M, Ghasemi Afshar B, Breitel D, Hill L, Foito A, Shepherd L, Freitag S, Nunes dos Santos C, Menezes R, Bañados P, Naesby M, Wang L, Sorokin A, Tikhonova O, Shelenga T, Stewart D, Vain P, Martin C. RNA-seq, de novo transcriptome assembly and flavonoid gene analysis in 13 wild and cultivated berry fruit species with high content of phenolics. BMC Genomics 2019; 20:995. [PMID: 31856735 PMCID: PMC6924045 DOI: 10.1186/s12864-019-6183-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [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: 05/02/2019] [Accepted: 10/15/2019] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Flavonoids are produced in all flowering plants in a wide range of tissues including in berry fruits. These compounds are of considerable interest for their biological activities, health benefits and potential pharmacological applications. However, transcriptomic and genomic resources for wild and cultivated berry fruit species are often limited, despite their value in underpinning the in-depth study of metabolic pathways, fruit ripening as well as in the identification of genotypes rich in bioactive compounds. RESULTS To access the genetic diversity of wild and cultivated berry fruit species that accumulate high levels of phenolic compounds in their fleshy berry(-like) fruits, we selected 13 species from Europe, South America and Asia representing eight genera, seven families and seven orders within three clades of the kingdom Plantae. RNA from either ripe fruits (ten species) or three ripening stages (two species) as well as leaf RNA (one species) were used to construct, assemble and analyse de novo transcriptomes. The transcriptome sequences are deposited in the BacHBerryGEN database (http://jicbio.nbi.ac.uk/berries) and were used, as a proof of concept, via its BLAST portal (http://jicbio.nbi.ac.uk/berries/blast.html) to identify candidate genes involved in the biosynthesis of phenylpropanoid compounds. Genes encoding regulatory proteins of the anthocyanin biosynthetic pathway (MYB and basic helix-loop-helix (bHLH) transcription factors and WD40 repeat proteins) were isolated using the transcriptomic resources of wild blackberry (Rubus genevieri) and cultivated red raspberry (Rubus idaeus cv. Prestige) and were shown to activate anthocyanin synthesis in Nicotiana benthamiana. Expression patterns of candidate flavonoid gene transcripts were also studied across three fruit developmental stages via the BacHBerryEXP gene expression browser (http://www.bachberryexp.com) in R. genevieri and R. idaeus cv. Prestige. CONCLUSIONS We report a transcriptome resource that includes data for a wide range of berry(-like) fruit species that has been developed for gene identification and functional analysis to assist in berry fruit improvement. These resources will enable investigations of metabolic processes in berries beyond the phenylpropanoid biosynthetic pathway analysed in this study. The RNA-seq data will be useful for studies of berry fruit development and to select wild plant species useful for plant breeding purposes.
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Affiliation(s)
- Vera Thole
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH UK
| | - Jean-Etienne Bassard
- Department of Plant and Environmental Science, University of Copenhagen, 1871 Frederiksberg, Denmark
- Present address: Institute of Plant Molecular Biology, CNRS, University of Strasbourg, 12 Rue General Zimmer, 67084 Strasbourg, France
| | | | - Martin Trick
- Department of Computational and Systems Biology, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH UK
| | - Bijan Ghasemi Afshar
- Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH UK
| | - Dario Breitel
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH UK
- Present address: Tropic Biosciences UK LTD, Norwich Research Park, Norwich, NR4 7UG UK
| | - Lionel Hill
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH UK
| | | | | | - Sabine Freitag
- The James Hutton Institute, Invergowrie, Dundee, DD2 5DA UK
| | - Cláudia Nunes dos Santos
- Instituto de Biologia Experimental e Tecnológica, Av. República, Qta. do Marquês, 2780-157 Oeiras, Portugal
- CEDOC, NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Rua Câmara Pestana 6, 1150-082 Lisbon, Portugal
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Regina Menezes
- Instituto de Biologia Experimental e Tecnológica, Av. República, Qta. do Marquês, 2780-157 Oeiras, Portugal
- CEDOC, NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Rua Câmara Pestana 6, 1150-082 Lisbon, Portugal
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Pilar Bañados
- Facultad De Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna Ote, 4860 Macul, Chile
| | | | - Liangsheng Wang
- Institute of Botany, The Chinese Academy of Sciences, 20 Nanxincun, Xiangshan, Beijing, 100093 China
| | - Artem Sorokin
- Fruit Crops Genetic Resources Department, N. I. Vavilov Research Institute of Plant Industry, B. Morskaya Street 42-44, St. Petersburg, 190000 Russia
| | - Olga Tikhonova
- Fruit Crops Genetic Resources Department, N. I. Vavilov Research Institute of Plant Industry, B. Morskaya Street 42-44, St. Petersburg, 190000 Russia
| | - Tatiana Shelenga
- Fruit Crops Genetic Resources Department, N. I. Vavilov Research Institute of Plant Industry, B. Morskaya Street 42-44, St. Petersburg, 190000 Russia
| | - Derek Stewart
- The James Hutton Institute, Invergowrie, Dundee, DD2 5DA UK
- Institute of Mechanical, Process and Energy Engineering, School of Engineering and Physical Sciences, Heriot Watt University, Edinburgh, UK
| | - Philippe Vain
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH UK
| | - Cathie Martin
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH UK
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Hughes D, Dailianis AE, Hill L, McIntyre DA, Anderson A, Anderson A, Barrat C, Battista K, Beatty S, Blanch T, Briones D, Brooks R, Brown J, Burnie A, Clark T, Dailianis A, Destro C, Dijs B, Dombroski P, Fyfe R, Gebler J, Gerry A, Graham T, Hadjimichael D, Heaton S, Hetrick S, High E, Hill L, Hirt B, Hulett B, Hussain Z, Kalinowski R, Kerr D, Matouchi N, Maycock L, Munyard S, Murphy M, Remes A, Ristov K, Robbins R, Rodriquez R, Shebuski J, Simes V, Smith K, Vanderpoel S, Wang D. TECRA® Unique™ Test for Rapid Detection of Salmonella in Food: Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/84.2.416] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
The TECRA® Unique™ Salmonella test uses the principle of immunoenrichment to allow rapid detection of Salmonellae in food. A collaborative study was conducted to compare the TECRA Salmonella Unique test with the reference culture method given in the U.S. Food and Drug Administration's Bacteriological Analytical Manual. Three food types (milk powder, pepper, and soy flour) were analyzed in Australia and 2 food types (milk chocolate and dried egg) were analyzed in the United States. Forty-one collaborators participated in the study. For each of the 5 foods at each of the 3 levels, a comparison showed no significant differences (p ≥ 0.05) in the proportion of positive test samples for Unique and that for the reference method using the Chi-square test for independence with continuity correction.
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Affiliation(s)
- Denise Hughes
- TECRA International, 13 Rodborough Rd, French's Forest, NSW 2086, Australia
| | - Angela E Dailianis
- TECRA International, 13 Rodborough Rd, French's Forest, NSW 2086, Australia
| | - Louise Hill
- TECRA International, 13 Rodborough Rd, French's Forest, NSW 2086, Australia
| | - Deborah A McIntyre
- R-TECH Laboratories, Lexington Ave, N. Arden Hills, Minneapolis, MN 55126
| | - Aimee Anderson
- R-TECH Laboratories, Lexington Ave, N. Arden Hills, Minneapolis, MN 55126
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Emmrich PMF, Rejzek M, Hill L, Brett P, Edwards A, Sarkar A, Field RA, Martin C, Wang TL. Linking a rapid throughput plate-assay with high-sensitivity stable-isotope label LCMS quantification permits the identification and characterisation of low β-L-ODAP grass pea lines. BMC Plant Biol 2019; 19:489. [PMID: 31718544 PMCID: PMC6849181 DOI: 10.1186/s12870-019-2091-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 10/21/2019] [Indexed: 05/24/2023]
Abstract
BACKGROUND Grass pea (Lathyrus sativus) is an underutilised crop with high tolerance to drought and flooding stress and potential for maintaining food and nutritional security in the face of climate change. The presence of the neurotoxin β-L-oxalyl-2,3-diaminopropionic acid (β-L-ODAP) in tissues of the plant has limited its adoption as a staple crop. To assist in the detection of material with very low neurotoxin toxin levels, we have developed two novel methods to assay ODAP. The first, a version of a widely used spectrophotometric assay, modified for increased throughput, permits rapid screening of large populations of germplasm for low toxin lines and the second is a novel, mass spectrometric procedure to detect very small quantities of ODAP for research purposes and characterisation of new varieties. RESULTS A plate assay, based on an established spectrophotometric method enabling high-throughput ODAP measurements, is described. In addition, we describe a novel liquid chromatography mass spectrometry (LCMS)-based method for β-L-ODAP-quantification. This method utilises an internal standard (di-13C-labelled β-L-ODAP) allowing accurate quantification of β-L-ODAP in grass pea tissue samples. The synthesis of this standard is also described. The two methods are compared; the spectrophotometric assay lacked sensitivity and detected ODAP-like absorbance in chickpea and pea whereas the LCMS method did not detect any β-L-ODAP in these species. The LCMS method was also used to quantify β-L-ODAP accurately in different tissues of grass pea. CONCLUSIONS The plate-based spectrophotometric assay allows quantification of total ODAP in large numbers of samples, but its low sensitivity and inability to differentiate α- and β-L-ODAP limit its usefulness for accurate quantification in low-ODAP samples. Coupled to the use of a stable isotope internal standard with LCMS that allows accurate quantification of β-L-ODAP in grass pea samples with high sensitivity, these methods permit the identification and characterisation of grass pea lines with a very low ODAP content. The LCMS method is offered as a new 'gold standard' for β-L-ODAP quantification, especially for the validation of existing and novel low- and/or zero-β-L-ODAP genotypes.
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Affiliation(s)
- Peter M. F. Emmrich
- John Innes Centre, Norwich Research Park, Norwich, NR4 7UH UK
- Biosciences Eastern and Central Africa – International Livestock Research Institute, P.O. 30709, Nairobi, 00100 Kenya
| | - Martin Rejzek
- John Innes Centre, Norwich Research Park, Norwich, NR4 7UH UK
| | - Lionel Hill
- John Innes Centre, Norwich Research Park, Norwich, NR4 7UH UK
| | - Paul Brett
- John Innes Centre, Norwich Research Park, Norwich, NR4 7UH UK
| | - Anne Edwards
- John Innes Centre, Norwich Research Park, Norwich, NR4 7UH UK
| | | | - Rob A. Field
- John Innes Centre, Norwich Research Park, Norwich, NR4 7UH UK
| | - Cathie Martin
- John Innes Centre, Norwich Research Park, Norwich, NR4 7UH UK
| | - Trevor L. Wang
- John Innes Centre, Norwich Research Park, Norwich, NR4 7UH UK
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Wagstaff BA, Rejzek M, Kuhaudomlarp S, Hill L, Mascia I, Nepogodiev SA, Dorfmueller HC, Field RA. Discovery of an RmlC/D fusion protein in the microalga Prymnesium parvum and its implications for NDP-β-l-rhamnose biosynthesis in microalgae. J Biol Chem 2019; 294:9172-9185. [PMID: 31010825 PMCID: PMC6556577 DOI: 10.1074/jbc.ra118.006440] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 04/19/2019] [Indexed: 11/06/2022] Open
Abstract
The 6-deoxy sugar l-rhamnose (l-Rha) is found widely in plant and microbial polysaccharides and natural products. The importance of this and related compounds in host-pathogen interactions often means that l-Rha plays an essential role in many organisms. l-Rha is most commonly biosynthesized as the activated sugar nucleotide uridine 5'-diphospho-β-l-rhamnose (UDP-β-l-Rha) or thymidine 5'-diphospho-β-l-rhamnose (TDP-β-l-Rha). Enzymes involved in the biosynthesis of these sugar nucleotides have been studied in some detail in bacteria and plants, but the activated form of l-Rha and the corresponding biosynthetic enzymes have yet to be explored in algae. Here, using sugar-nucleotide profiling in two representative algae, Euglena gracilis and the toxin-producing microalga Prymnesium parvum, we show that levels of UDP- and TDP-activated l-Rha differ significantly between these two algal species. Using bioinformatics and biochemical methods, we identified and characterized a fusion of the RmlC and RmlD proteins, two bacteria-like enzymes involved in TDP-β-l-Rha biosynthesis, from P. parvum Using this new sequence and also others, we explored l-Rha biosynthesis among algae, finding that although most algae contain sequences orthologous to plant-like l-Rha biosynthesis machineries, instances of the RmlC-RmlD fusion protein identified here exist across the Haptophyta and Gymnodiniaceae families of microalgae. On the basis of these findings, we propose potential routes for the evolution of nucleoside diphosphate β-l-Rha (NDP-β-l-Rha) pathways among algae.
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Affiliation(s)
- Ben A Wagstaff
- From the Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, United Kingdom.,Division of Molecular Microbiology, School of Life Sciences, University of Dundee, Dundee, DD1 5EH, United Kingdom, and
| | - Martin Rejzek
- From the Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, United Kingdom
| | - Sakonwan Kuhaudomlarp
- From the Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, United Kingdom.,Université Grenoble Alpes, CNRS, CERMAV, 38000, Grenoble, France
| | - Lionel Hill
- From the Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, United Kingdom
| | - Ilaria Mascia
- From the Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, United Kingdom
| | - Sergey A Nepogodiev
- From the Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, United Kingdom
| | - Helge C Dorfmueller
- Division of Molecular Microbiology, School of Life Sciences, University of Dundee, Dundee, DD1 5EH, United Kingdom, and
| | - Robert A Field
- From the Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, United Kingdom,
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Adamson P, Newby D, Hill L, Coles A, Douglas P, Fordyce C. P4208Impact of international guidelines' differing approaches to the risk stratification of patients with suspected stable angina: Insights form PROMISE and SCOT-HEART. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- P Adamson
- University of Edinburgh, Centre for Cardiovascular Science, Edinburgh, United Kingdom
| | - D Newby
- University of Edinburgh, Centre for Cardiovascular Science, Edinburgh, United Kingdom
| | - L Hill
- Duke Clinical Research Institute, Durham, United States of America
| | - A Coles
- Duke Clinical Research Institute, Durham, United States of America
| | - P Douglas
- Duke Clinical Research Institute, Durham, United States of America
| | - C Fordyce
- University of British Columbia, Division of Cardiology, Vancouver, Canada
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D'Amelia V, Aversano R, Ruggiero A, Batelli G, Appelhagen I, Dinacci C, Hill L, Martin C, Carputo D. Subfunctionalization of duplicate MYB genes in Solanum commersonii generated the cold-induced ScAN2 and the anthocyanin regulator ScAN1. Plant Cell Environ 2018; 41:1038-1051. [PMID: 28386931 DOI: 10.1111/pce.12966] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 03/26/2017] [Accepted: 03/27/2017] [Indexed: 06/07/2023]
Abstract
Wild potato species are useful sources of allelic diversity and loci lacking in the cultivated potato. In these species, the presence of anthocyanins in leaves has been associated with a greater tolerance to cold stress. However, the molecular mechanisms that allow potatoes to withstand cold exposure remain unclear. Here, we show that the expression of AN2, a MYB transcription factor, is induced by low temperatures in wild, cold-tolerant Solanum commersonii, and not in susceptible Solanum tuberosum varieties. We found that AN2 is a paralog of the potato anthocyanin regulator AN1, showing similar interaction ability with basic helix-loop-helix (bHLH) co-partners. Their sequence diversity resulted in a different capacity to promote accumulation of phenolics when tested in tobacco. Indeed, functional studies demonstrated that AN2 is less able to induce anthocyanins than AN1, but nevertheless it has a strong ability to induce accumulation of hydroxycinnamic acid derivatives. We propose that the duplication of R2R3 MYB genes resulted in subsequent subfunctionalization, where AN1 specialized in anthocyanin production and AN2 conserved the ability to respond to cold stress, inducing mainly the synthesis of hydroxycinnamic acid derivatives. These results contribute to understanding the evolutionary significance of gene duplication on phenolic compound regulation.
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Affiliation(s)
- Vincenzo D'Amelia
- Department of Agricultural Sciences, University of Naples Federico II, Portici, 80055, Italy
| | - Riccardo Aversano
- Department of Agricultural Sciences, University of Naples Federico II, Portici, 80055, Italy
| | - Alessandra Ruggiero
- National Research Council of Italy, Institute of Biosciences and Bioresources, Research Division Portici (CNR-IBBR), Portici, 80055, Italy
| | - Giorgia Batelli
- National Research Council of Italy, Institute of Biosciences and Bioresources, Research Division Portici (CNR-IBBR), Portici, 80055, Italy
| | - Ingo Appelhagen
- John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Claudio Dinacci
- Department of Agricultural Sciences, University of Naples Federico II, Portici, 80055, Italy
| | - Lionel Hill
- John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Cathie Martin
- John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Domenico Carputo
- Department of Agricultural Sciences, University of Naples Federico II, Portici, 80055, Italy
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Kaufmann C, Zacharias K, Rogers A, O’donnell J, Hill L, Ness K, Schnell N. 3-D specimen tomosynthesis provides more information than 2-D specimen mammography. Eur J Cancer 2018. [DOI: 10.1016/s0959-8049(18)30455-6] [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: 11/16/2022]
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Scarano A, Butelli E, De Santis S, Cavalcanti E, Hill L, De Angelis M, Giovinazzo G, Chieppa M, Martin C, Santino A. Combined Dietary Anthocyanins, Flavonols, and Stilbenoids Alleviate Inflammatory Bowel Disease Symptoms in Mice. Front Nutr 2018; 4:75. [PMID: 29473042 PMCID: PMC5810255 DOI: 10.3389/fnut.2017.00075] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [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: 11/16/2017] [Accepted: 12/26/2017] [Indexed: 12/14/2022] Open
Abstract
Dietary polyphenols are associated with a wide range of health benefits, protecting against chronic diseases and promoting healthy aging. Dietary polyphenols offer a complementary approach to the treatment of inflammatory bowel diseases (IBDs), a group of common chronic intestinal inflammation syndromes for which there is no cure. Tomato is widely consumed but its content of polyphenols is low. We developed a tomato variety, Bronze, enriched in three distinct classes of polyphenols: flavonols, anthocyanins, and stilbenoids. Using Bronze tomatoes as a dietary supplement as well as Indigo (high anthocyanins and flavonols), ResTom (high stilbenoids) and wild-type tomatoes, we examined the effects of the different polyphenols on the host gut microbiota, inflammatory responses, and the symptoms of chronic IBD, in a mouse model. Bronze tomatoes significantly impacted the symptoms of IBD. A similar result was observed using diets supplemented with red grape skin containing flavonols, anthocyanins, and stilbenoids, suggesting that effective protection is provided by different classes of polyphenols acting synergistically.
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Affiliation(s)
- Aurelia Scarano
- ISPA-CNR, Institute of Science of Food Production, C.N.R. Unit of Lecce, Lecce, Italy
| | - Eugenio Butelli
- John Innes Centre, Colney Research Park, Norwich, United Kingdom
| | - Stefania De Santis
- National Institute of Gastroenterology "S. de Bellis", Institute of Research, Castellana Grotte, Bari, Italy
| | - Elisabetta Cavalcanti
- National Institute of Gastroenterology "S. de Bellis", Institute of Research, Castellana Grotte, Bari, Italy
| | - Lionel Hill
- John Innes Centre, Colney Research Park, Norwich, United Kingdom
| | - Maria De Angelis
- Department of Soil, Plant and Food Sciences, University of Bari, Bari, Italy
| | - Giovanna Giovinazzo
- ISPA-CNR, Institute of Science of Food Production, C.N.R. Unit of Lecce, Lecce, Italy
| | - Marcello Chieppa
- National Institute of Gastroenterology "S. de Bellis", Institute of Research, Castellana Grotte, Bari, Italy
| | - Cathie Martin
- John Innes Centre, Colney Research Park, Norwich, United Kingdom
| | - Angelo Santino
- ISPA-CNR, Institute of Science of Food Production, C.N.R. Unit of Lecce, Lecce, Italy
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de Lange WJ, Genthe B, Hill L, Oberholster PJ. Towards a rapid assessment protocol for identifying pit lakes worthy of restoration. J Environ Manage 2018; 206:949-961. [PMID: 29223105 DOI: 10.1016/j.jenvman.2017.11.084] [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: 10/12/2017] [Revised: 11/27/2017] [Accepted: 11/29/2017] [Indexed: 06/07/2023]
Abstract
Before the introduction of reclamation legislation in South Africa, final cut lakes in mining areas were left without any restoration while the final excavation was not back filled. Characteristics of these lacustrine water bodies vary considerably, but they are often linear in shape, large (1-30 ha), deep (2-30 m) and have poorly developed littoral zones. With water tables often near the surface; a variety of vascular hydrophytes can colonize these bodies, thus establishing emerging wetland type ecosystems. These, man-made aquatic structures that are (unintentionally) created potentially offers some realistic and inexpensive mitigation options for some of the negative impacts associated with mining, i.e. these water bodies can become useful by yielding potentially valuable services. However, no method currently exists to compare and rank these water bodies according ecological integrity and the expected monetary value to be derived from them in order to select sites for restoration. To answer this need, we applied an index to determine the ability of these water bodies to provide useful services in their current state. The index was then used to derive estimates of the monetary value of potential services in order to allow comparison with the cost of restoring the water body in question or to compare with other pit lakes. We present a South African case study to illustrate the method. As far as could be established, this is the first attempt towards creating a rapid assessment tool as standardised way of comparing pit lakes that allows for the ranking and identification of those pit lakes worthy of restoration.
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Affiliation(s)
- W J de Lange
- Council of Scientific and Industrial Research, Stellenbosch, South Africa.
| | - B Genthe
- Council of Scientific and Industrial Research, Stellenbosch, South Africa
| | - L Hill
- Council of Scientific and Industrial Research, Stellenbosch, South Africa
| | - P J Oberholster
- Council of Scientific and Industrial Research, Stellenbosch, South Africa; Department of Earth Sciences, University of the Western Cape, South Africa
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Zhao Q, Cui MY, Levsh O, Yang D, Liu J, Li J, Hill L, Yang L, Hu Y, Weng JK, Chen XY, Martin C. Two CYP82D Enzymes Function as Flavone Hydroxylases in the Biosynthesis of Root-Specific 4'-Deoxyflavones in Scutellaria baicalensis. Mol Plant 2018; 11:135-148. [PMID: 28842248 PMCID: PMC5770198 DOI: 10.1016/j.molp.2017.08.009] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 08/14/2017] [Accepted: 08/14/2017] [Indexed: 05/22/2023]
Abstract
Baicalein, wogonin, and their glycosides are major bioactive compounds found in the medicinal plant Scutellaria baicalensis Georgi. These flavones can induce apoptosis in a variety of cancer cell lines but have no effect on normal cells. Furthermore, they have many additional benefits for human health, such as anti-oxidant, antiviral, and liver-protective properties. Here, we report the isolation and characterization of two CYP450 enzymes, SbCYP82D1.1 and SbCYP82D2, which function as the flavone 6-hydroxylase (F6H) and flavone 8-hydroxylase (F8H), respectively, in S. baicalensis. SbCYP82D1.1 has broad substrate specificity for flavones such as chrysin and apigenin and is responsible for biosynthesis of baicalein and scutellarein in roots and aerial parts of S. baicalensis, respectively. When the expression of SbCYP82D1.1 is knocked down, baicalin and baicalein levels are reduced significantly while chrysin glycosides accumulate in hairy roots. SbCYP82D2 is an F8H with high substrate specificity, accepting only chrysin as its substrate to produce norwogonin, although minor 6-hydroxylation activity can also be detected. Phylogenetic analysis suggested that SbCYP82D2 might have evolved from SbCYP82D1.1 via gene duplication followed by neofunctionalization, whereby the ancestral F6H activity is partially retained in the derived SbCYP82D2.
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Affiliation(s)
- Qing Zhao
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai, China; Department of Metabolic Biology, John Innes Centre, Norwich NR4 7UH, UK
| | - Meng-Ying Cui
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai, China
| | - Olesya Levsh
- Whitehead Institute for Biomedical Research, 455 Main Street, Cambridge, MA 02142, USA; Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Dongfeng Yang
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai, China; College of Life Sciences, Zhejiang Sci-Tech University, Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, Hangzhou 310018, China
| | - Jie Liu
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai, China
| | - Jie Li
- Department of Metabolic Biology, John Innes Centre, Norwich NR4 7UH, UK
| | - Lionel Hill
- Department of Metabolic Biology, John Innes Centre, Norwich NR4 7UH, UK
| | - Lei Yang
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai, China
| | - Yonghong Hu
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai, China
| | - Jing-Ke Weng
- Whitehead Institute for Biomedical Research, 455 Main Street, Cambridge, MA 02142, USA; Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Xiao-Ya Chen
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai, China; State Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Cathie Martin
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai, China; Department of Metabolic Biology, John Innes Centre, Norwich NR4 7UH, UK.
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Oberholster PJ, Botha AM, Hill L, Strydom WF. River catchment responses to anthropogenic acidification in relationship with sewage effluent: An ecotoxicology screening application. Chemosphere 2017; 189:407-417. [PMID: 28950120 DOI: 10.1016/j.chemosphere.2017.09.084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 09/17/2017] [Accepted: 09/18/2017] [Indexed: 06/07/2023]
Abstract
Rising environmental pressures on water resources and resource quality associated with urbanisation, industrialisation, mining and agriculture are a global concern. In the current study the upper Olifants River catchment as case study was used, to show that acid mine drainage (AMD) and acid precipitation were the two most important drivers of possible acidification during a four-year study period. Over the study period 59% of the precipitation sampled was classified as acidic with a pH value below 5.6. Traces of acidification in the river system using aquatic organisms at different trophic levels were only evident in areas of AMD point sources. Data gathered from the ecotoxicology screening tools, revealed that discharge of untreated and partially treated domestic sewage from municipal sewage treatment works and informal housing partially mitigate any traces of acidification by AMD and acid precipitation in the main stem of the upper Olifants River. The outcome of the study using phytoplankton and macroinvertebrates as indicator organisms revealed that the high loads of sewage effluent might have played a major role in the neutralization of acidic surface water conditions caused by AMD and acid precipitation. Although previous multi-stage and microcosm studies confirmed the decrease in acidity and metals concentrations by municipal wastewater, the current study is the first to provide supportive evidence of this co-attenuation on catchment scale. These findings are important for integrated water resource management on catchment level, especially in river systems with a complex mixture of pollutants.
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Affiliation(s)
- P J Oberholster
- CSIR Natural Resources and the Environment, P.O. Box 320, Stellenbosch 7599, South Africa; Department of Earth Sciences, University of the Western Cape, Private Bag X17, Bellville 7535, South Africa
| | - A-M Botha
- Department of Genetics, University of Stellenbosch, Private Bag X1, Matieland, Stellenbosch, 7601, South Africa.
| | - L Hill
- CSIR Natural Resources and the Environment, P.O. Box 395, Pretoria 0001, South Africa; Department of Genetics, University of Stellenbosch, Private Bag X1, Matieland, Stellenbosch, 7601, South Africa
| | - W F Strydom
- CSIR Natural Resources and the Environment, P.O. Box 395, Pretoria 0001, South Africa
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Du T, Hill L, Ding L, Towbin A, DeJonckheere M, Bennett P, Hagerman N, Varughese A, Pratap J. Gastric emptying for liquids of different compositions in children. Br J Anaesth 2017; 119:948-955. [DOI: 10.1093/bja/aex340] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/28/2017] [Indexed: 02/04/2023] Open
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Strogatz D, Jones V, Andrews H, DiGuiseppi C, Eby D, Hill L, Mielenz T, Li G. COMPARISON OF THE ACCESSIBILITY AND CONTENT OF DRIVING RECORDS FROM MULTIPLE STATES. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- D. Strogatz
- Bassett Research Institute, Cooperstown, New York,
| | - V. Jones
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland,
| | - H. Andrews
- Columbia University, New York, New York,
| | - C. DiGuiseppi
- University of Colorado School of Medicine, Denver, Colorado,
| | - D.W. Eby
- University of Michigan Transportation Research Institute,
Ann Arbor, Michigan,
| | - L. Hill
- University of California at San Diego, San Diego, California
| | - T. Mielenz
- Columbia University, New York, New York,
| | - G. Li
- Columbia University, New York, New York,
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Hill L. RECENT ADVANCES IN OLDER DRIVER RESEARCH: METHODOLOGY AND OUTCOMES FROM THE AAAFTS LONGROAD STUDY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- L. Hill
- University of California, San Diego, San Diego, California
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Betz M, DiGuiseppi C, Hill L, Molnar L, Jones V, Ryan L, Strogatz D, Li G. RECRUITMENT OF OLDER DRIVERS INTO LONGROAD: EXPERIENCES FROM A MULTI-STATE STUDY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- M. Betz
- Emergency Medicine, University of Colorado--Denver, Denver, Colorado,
| | | | - L. Hill
- University of California San Diego, San Diego, California,
| | - L.J. Molnar
- University of Michigan Transportation Research Institute, Ann Arbor, Michigan,
| | - V. Jones
- Johns Hopkins University, Baltimore, Maryland,
| | - L.H. Ryan
- University of Michigan Institute for Social Research, Ann Arbor, Michigan,
| | - D. Strogatz
- Bassett Research Institute, Cooperstown, New York,
| | - G. Li
- Columbia University, New York, New York
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Hill L, Rybar J, Engler A, Jahns J, Al-Wahab U, Chukwueke J. DISTRACTED DRIVING IN OLDER ADULTS: PRACTICES AND ATTITUDES. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- L. Hill
- Family Medicine and Public Health, University of California, San Diego, San Diego, California
| | - J. Rybar
- Family Medicine and Public Health, University of California, San Diego, San Diego, California
| | - A. Engler
- Family Medicine and Public Health, University of California, San Diego, San Diego, California
| | - J. Jahns
- Family Medicine and Public Health, University of California, San Diego, San Diego, California
| | - U. Al-Wahab
- Family Medicine and Public Health, University of California, San Diego, San Diego, California
| | - J. Chukwueke
- Family Medicine and Public Health, University of California, San Diego, San Diego, California
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Hill L. Mixed drink increased carbohydrate oxidation but not performance during a 40 km time trial. S Afr j sports med 2017. [DOI: 10.17159/2078-516x/2016/v28i3a1862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Background: The present study aimed to determine whether consuming a glucose polymer (GP) and fructose would result in increased carbohydrate oxidation rates and improve 40 km time trial performance compared with an isocaloric GP-only drink.Methods: Eight well-trained male competitive cyclists (VO2max 62.7 ± 9.4 ml/kg/min, power output 5.1 ± 0.6 Watts/kg) participated in three visits consisting of a peak power output (Wmax) and VO2 max test and two separate visits of a 105 minute steady state ride (at 65% Wmax), followed by a 40 km time trial. Participants received 1.2 g/min of either a GP or mixed drink every 15 min.Results: No differences were found in the 40 km performance between GP (69:14 min ± 4.12, mean ± SD) and the mixed drink (66:58 min ± 4.51, mean ± SD) trials (p = 0.289). There were no differences in blood glucose or lactate between the trials. No differences in total oxidation were found in either carbohydrate or fat oxidation rates; however, exogenous carbohydrate oxidation was significantly different between the GP drink trials at t=90 min (GP: 0.96 ± 0.36 g/min; mixed drink: 1.53 ± 0.48 g/min; p = 0.041, mean ± SD).Conclusion: The present study found no improvement in 40 km time trial time between an isocaloric GP-only or a GP and fructose drink, and no differences in any of the measured variables other than exogenous carbohydrate oxidation at 90 minutes during the pre-time trial steady state ride.
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Kallam K, Appelhagen I, Luo J, Albert N, Zhang H, Deroles S, Hill L, Findlay K, Andersen ØM, Davies K, Martin C. Aromatic Decoration Determines the Formation of Anthocyanic Vacuolar Inclusions. Curr Biol 2017; 27:945-957. [PMID: 28318977 PMCID: PMC5387179 DOI: 10.1016/j.cub.2017.02.027] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 02/09/2017] [Accepted: 02/13/2017] [Indexed: 11/05/2022]
Abstract
Anthocyanins are some of the most widely occurring secondary metabolites in plants, responsible for the orange, red, purple, and blue colors of flowers and fruits and red colors of autumn leaves. These pigments accumulate in vacuoles, and their color is influenced by chemical decorations, vacuolar pH, the presence of copigments, and metal ions. Anthocyanins are usually soluble in the vacuole, but in some plants, they accumulate as discrete sub-vacuolar structures. Studies have distinguished intensely colored intra-vacuolar bodies observed in the cells of highly colored tissues, termed anthocyanic vacuolar inclusions (AVIs), from more globular, membrane-bound anthocyanoplasts. We describe a system in tobacco that adds additional decorations to the basic anthocyanin, cyanidin 3-O-rutinoside, normally formed by this species. Using this system, we have been able to establish which decorations underpin the formation of AVIs, the conditions promoting AVI formation, and, consequently, the mechanism by which they form.
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Affiliation(s)
- Kalyani Kallam
- Department of Metabolic Biology, John Innes Centre, Norwich NR4 7UH, UK
| | - Ingo Appelhagen
- Department of Metabolic Biology, John Innes Centre, Norwich NR4 7UH, UK
| | - Jie Luo
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Nick Albert
- New Zealand Institute for Plant and Food Research Limited, Private Bag 11-600, Palmerston North 4442, New Zealand
| | - Huaibi Zhang
- New Zealand Institute for Plant and Food Research Limited, Private Bag 11-600, Palmerston North 4442, New Zealand
| | - Simon Deroles
- New Zealand Institute for Plant and Food Research Limited, Private Bag 11-600, Palmerston North 4442, New Zealand
| | - Lionel Hill
- Department of Metabolic Biology, John Innes Centre, Norwich NR4 7UH, UK
| | - Kim Findlay
- Department of Metabolic Biology, John Innes Centre, Norwich NR4 7UH, UK
| | - Øyvind M Andersen
- Department of Chemistry, University of Bergen, Postboks 7803, 5020 Bergen, Norway
| | - Kevin Davies
- New Zealand Institute for Plant and Food Research Limited, Private Bag 11-600, Palmerston North 4442, New Zealand
| | - Cathie Martin
- Department of Metabolic Biology, John Innes Centre, Norwich NR4 7UH, UK.
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Butelli E, Garcia-Lor A, Licciardello C, Las Casas G, Hill L, Recupero GR, Keremane ML, Ramadugu C, Krueger R, Xu Q, Deng X, Fanciullino AL, Froelicher Y, Navarro L, Martin C. Changes in Anthocyanin Production during Domestication of Citrus. Plant Physiol 2017; 173:2225-2242. [PMID: 28196843 PMCID: PMC5373055 DOI: 10.1104/pp.16.01701] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 02/10/2017] [Indexed: 05/17/2023]
Abstract
Mandarin (Citrus reticulata), citron (Citrus medica), and pummelo (Citrus maxima) are important species of the genus Citrus and parents of the interspecific hybrids that constitute the most familiar commercial varieties of Citrus: sweet orange, sour orange, clementine, lemon, lime, and grapefruit. Citron produces anthocyanins in its young leaves and flowers, as do species in genera closely related to Citrus, but mandarins do not, and pummelo varieties that produce anthocyanins have not been reported. We investigated the activity of the Ruby gene, which encodes a MYB transcription factor controlling anthocyanin biosynthesis, in different accessions of a range of Citrus species and in domesticated cultivars. A white mutant of lemon lacks functional alleles of Ruby, demonstrating that Ruby plays an essential role in anthocyanin production in Citrus Almost all the natural variation in pigmentation by anthocyanins in Citrus species can be explained by differences in activity of the Ruby gene, caused by point mutations and deletions and insertions of transposable elements. Comparison of the allelic constitution of Ruby in different species and cultivars also helps to clarify many of the taxonomic relationships in different species of Citrus, confirms the derivation of commercial varieties during domestication, elucidates the relationships within the subgenus Papeda, and allows a new genetic classification of mandarins.
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Affiliation(s)
- Eugenio Butelli
- John Innes Centre, Norwich NR4 7UH, United Kingdom (E.B., L.H., C.M.);
- Instituto Valenciano de Investigaciones Agrarias, 46113 Moncada, Valencia, Spain (A.G.-L., L.N.);
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Centro di Ricerca per l'Agrumicoltura e le Colture Mediterranee, 95024 Acireale, Italy (C.L., G.R.-R.);
- Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, 95123 Catania, Italy (G.L.C.);
- United States Department of Agriculture-Agricultural Research Service National Clonal Germplasm Repository for Citrus and Dates, Riverside, California 92507-5437 (M.L.K., R.K.);
- University of California, Riverside, California 92521 (C.R.);
- Key Laboratory of Horticultural Plant Biology of the Ministry of Education, Huazhong Agricultural University, Wuhan 430070, People's Republic of China (Q.X., X.D.);
- Institut National de la Recherche Agronomique, UR1115 PSH, F-84914 Avignon, France (A.-L.F.); and
- CIRAD, Unité Mixte de Recherche AGAP, Station Institut National de la Recherche Agronomique, F-20230 San Giuliano, France (Y.F.)
| | - Andrés Garcia-Lor
- John Innes Centre, Norwich NR4 7UH, United Kingdom (E.B., L.H., C.M.)
- Instituto Valenciano de Investigaciones Agrarias, 46113 Moncada, Valencia, Spain (A.G.-L., L.N.)
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Centro di Ricerca per l'Agrumicoltura e le Colture Mediterranee, 95024 Acireale, Italy (C.L., G.R.-R.)
- Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, 95123 Catania, Italy (G.L.C.)
- United States Department of Agriculture-Agricultural Research Service National Clonal Germplasm Repository for Citrus and Dates, Riverside, California 92507-5437 (M.L.K., R.K.)
- University of California, Riverside, California 92521 (C.R.)
- Key Laboratory of Horticultural Plant Biology of the Ministry of Education, Huazhong Agricultural University, Wuhan 430070, People's Republic of China (Q.X., X.D.)
- Institut National de la Recherche Agronomique, UR1115 PSH, F-84914 Avignon, France (A.-L.F.); and
- CIRAD, Unité Mixte de Recherche AGAP, Station Institut National de la Recherche Agronomique, F-20230 San Giuliano, France (Y.F.)
| | - Concetta Licciardello
- John Innes Centre, Norwich NR4 7UH, United Kingdom (E.B., L.H., C.M.)
- Instituto Valenciano de Investigaciones Agrarias, 46113 Moncada, Valencia, Spain (A.G.-L., L.N.)
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Centro di Ricerca per l'Agrumicoltura e le Colture Mediterranee, 95024 Acireale, Italy (C.L., G.R.-R.)
- Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, 95123 Catania, Italy (G.L.C.)
- United States Department of Agriculture-Agricultural Research Service National Clonal Germplasm Repository for Citrus and Dates, Riverside, California 92507-5437 (M.L.K., R.K.)
- University of California, Riverside, California 92521 (C.R.)
- Key Laboratory of Horticultural Plant Biology of the Ministry of Education, Huazhong Agricultural University, Wuhan 430070, People's Republic of China (Q.X., X.D.)
- Institut National de la Recherche Agronomique, UR1115 PSH, F-84914 Avignon, France (A.-L.F.); and
- CIRAD, Unité Mixte de Recherche AGAP, Station Institut National de la Recherche Agronomique, F-20230 San Giuliano, France (Y.F.)
| | - Giuseppina Las Casas
- John Innes Centre, Norwich NR4 7UH, United Kingdom (E.B., L.H., C.M.)
- Instituto Valenciano de Investigaciones Agrarias, 46113 Moncada, Valencia, Spain (A.G.-L., L.N.)
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Centro di Ricerca per l'Agrumicoltura e le Colture Mediterranee, 95024 Acireale, Italy (C.L., G.R.-R.)
- Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, 95123 Catania, Italy (G.L.C.)
- United States Department of Agriculture-Agricultural Research Service National Clonal Germplasm Repository for Citrus and Dates, Riverside, California 92507-5437 (M.L.K., R.K.)
- University of California, Riverside, California 92521 (C.R.)
- Key Laboratory of Horticultural Plant Biology of the Ministry of Education, Huazhong Agricultural University, Wuhan 430070, People's Republic of China (Q.X., X.D.)
- Institut National de la Recherche Agronomique, UR1115 PSH, F-84914 Avignon, France (A.-L.F.); and
- CIRAD, Unité Mixte de Recherche AGAP, Station Institut National de la Recherche Agronomique, F-20230 San Giuliano, France (Y.F.)
| | - Lionel Hill
- John Innes Centre, Norwich NR4 7UH, United Kingdom (E.B., L.H., C.M.)
- Instituto Valenciano de Investigaciones Agrarias, 46113 Moncada, Valencia, Spain (A.G.-L., L.N.)
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Centro di Ricerca per l'Agrumicoltura e le Colture Mediterranee, 95024 Acireale, Italy (C.L., G.R.-R.)
- Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, 95123 Catania, Italy (G.L.C.)
- United States Department of Agriculture-Agricultural Research Service National Clonal Germplasm Repository for Citrus and Dates, Riverside, California 92507-5437 (M.L.K., R.K.)
- University of California, Riverside, California 92521 (C.R.)
- Key Laboratory of Horticultural Plant Biology of the Ministry of Education, Huazhong Agricultural University, Wuhan 430070, People's Republic of China (Q.X., X.D.)
- Institut National de la Recherche Agronomique, UR1115 PSH, F-84914 Avignon, France (A.-L.F.); and
- CIRAD, Unité Mixte de Recherche AGAP, Station Institut National de la Recherche Agronomique, F-20230 San Giuliano, France (Y.F.)
| | - Giuseppe Reforgiato Recupero
- John Innes Centre, Norwich NR4 7UH, United Kingdom (E.B., L.H., C.M.)
- Instituto Valenciano de Investigaciones Agrarias, 46113 Moncada, Valencia, Spain (A.G.-L., L.N.)
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Centro di Ricerca per l'Agrumicoltura e le Colture Mediterranee, 95024 Acireale, Italy (C.L., G.R.-R.)
- Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, 95123 Catania, Italy (G.L.C.)
- United States Department of Agriculture-Agricultural Research Service National Clonal Germplasm Repository for Citrus and Dates, Riverside, California 92507-5437 (M.L.K., R.K.)
- University of California, Riverside, California 92521 (C.R.)
- Key Laboratory of Horticultural Plant Biology of the Ministry of Education, Huazhong Agricultural University, Wuhan 430070, People's Republic of China (Q.X., X.D.)
- Institut National de la Recherche Agronomique, UR1115 PSH, F-84914 Avignon, France (A.-L.F.); and
- CIRAD, Unité Mixte de Recherche AGAP, Station Institut National de la Recherche Agronomique, F-20230 San Giuliano, France (Y.F.)
| | - Manjunath L Keremane
- John Innes Centre, Norwich NR4 7UH, United Kingdom (E.B., L.H., C.M.)
- Instituto Valenciano de Investigaciones Agrarias, 46113 Moncada, Valencia, Spain (A.G.-L., L.N.)
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Centro di Ricerca per l'Agrumicoltura e le Colture Mediterranee, 95024 Acireale, Italy (C.L., G.R.-R.)
- Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, 95123 Catania, Italy (G.L.C.)
- United States Department of Agriculture-Agricultural Research Service National Clonal Germplasm Repository for Citrus and Dates, Riverside, California 92507-5437 (M.L.K., R.K.)
- University of California, Riverside, California 92521 (C.R.)
- Key Laboratory of Horticultural Plant Biology of the Ministry of Education, Huazhong Agricultural University, Wuhan 430070, People's Republic of China (Q.X., X.D.)
- Institut National de la Recherche Agronomique, UR1115 PSH, F-84914 Avignon, France (A.-L.F.); and
- CIRAD, Unité Mixte de Recherche AGAP, Station Institut National de la Recherche Agronomique, F-20230 San Giuliano, France (Y.F.)
| | - Chandrika Ramadugu
- John Innes Centre, Norwich NR4 7UH, United Kingdom (E.B., L.H., C.M.)
- Instituto Valenciano de Investigaciones Agrarias, 46113 Moncada, Valencia, Spain (A.G.-L., L.N.)
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Centro di Ricerca per l'Agrumicoltura e le Colture Mediterranee, 95024 Acireale, Italy (C.L., G.R.-R.)
- Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, 95123 Catania, Italy (G.L.C.)
- United States Department of Agriculture-Agricultural Research Service National Clonal Germplasm Repository for Citrus and Dates, Riverside, California 92507-5437 (M.L.K., R.K.)
- University of California, Riverside, California 92521 (C.R.)
- Key Laboratory of Horticultural Plant Biology of the Ministry of Education, Huazhong Agricultural University, Wuhan 430070, People's Republic of China (Q.X., X.D.)
- Institut National de la Recherche Agronomique, UR1115 PSH, F-84914 Avignon, France (A.-L.F.); and
- CIRAD, Unité Mixte de Recherche AGAP, Station Institut National de la Recherche Agronomique, F-20230 San Giuliano, France (Y.F.)
| | - Robert Krueger
- John Innes Centre, Norwich NR4 7UH, United Kingdom (E.B., L.H., C.M.)
- Instituto Valenciano de Investigaciones Agrarias, 46113 Moncada, Valencia, Spain (A.G.-L., L.N.)
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Centro di Ricerca per l'Agrumicoltura e le Colture Mediterranee, 95024 Acireale, Italy (C.L., G.R.-R.)
- Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, 95123 Catania, Italy (G.L.C.)
- United States Department of Agriculture-Agricultural Research Service National Clonal Germplasm Repository for Citrus and Dates, Riverside, California 92507-5437 (M.L.K., R.K.)
- University of California, Riverside, California 92521 (C.R.)
- Key Laboratory of Horticultural Plant Biology of the Ministry of Education, Huazhong Agricultural University, Wuhan 430070, People's Republic of China (Q.X., X.D.)
- Institut National de la Recherche Agronomique, UR1115 PSH, F-84914 Avignon, France (A.-L.F.); and
- CIRAD, Unité Mixte de Recherche AGAP, Station Institut National de la Recherche Agronomique, F-20230 San Giuliano, France (Y.F.)
| | - Qiang Xu
- John Innes Centre, Norwich NR4 7UH, United Kingdom (E.B., L.H., C.M.)
- Instituto Valenciano de Investigaciones Agrarias, 46113 Moncada, Valencia, Spain (A.G.-L., L.N.)
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Centro di Ricerca per l'Agrumicoltura e le Colture Mediterranee, 95024 Acireale, Italy (C.L., G.R.-R.)
- Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, 95123 Catania, Italy (G.L.C.)
- United States Department of Agriculture-Agricultural Research Service National Clonal Germplasm Repository for Citrus and Dates, Riverside, California 92507-5437 (M.L.K., R.K.)
- University of California, Riverside, California 92521 (C.R.)
- Key Laboratory of Horticultural Plant Biology of the Ministry of Education, Huazhong Agricultural University, Wuhan 430070, People's Republic of China (Q.X., X.D.)
- Institut National de la Recherche Agronomique, UR1115 PSH, F-84914 Avignon, France (A.-L.F.); and
- CIRAD, Unité Mixte de Recherche AGAP, Station Institut National de la Recherche Agronomique, F-20230 San Giuliano, France (Y.F.)
| | - Xiuxin Deng
- John Innes Centre, Norwich NR4 7UH, United Kingdom (E.B., L.H., C.M.)
- Instituto Valenciano de Investigaciones Agrarias, 46113 Moncada, Valencia, Spain (A.G.-L., L.N.)
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Centro di Ricerca per l'Agrumicoltura e le Colture Mediterranee, 95024 Acireale, Italy (C.L., G.R.-R.)
- Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, 95123 Catania, Italy (G.L.C.)
- United States Department of Agriculture-Agricultural Research Service National Clonal Germplasm Repository for Citrus and Dates, Riverside, California 92507-5437 (M.L.K., R.K.)
- University of California, Riverside, California 92521 (C.R.)
- Key Laboratory of Horticultural Plant Biology of the Ministry of Education, Huazhong Agricultural University, Wuhan 430070, People's Republic of China (Q.X., X.D.)
- Institut National de la Recherche Agronomique, UR1115 PSH, F-84914 Avignon, France (A.-L.F.); and
- CIRAD, Unité Mixte de Recherche AGAP, Station Institut National de la Recherche Agronomique, F-20230 San Giuliano, France (Y.F.)
| | - Anne-Laure Fanciullino
- John Innes Centre, Norwich NR4 7UH, United Kingdom (E.B., L.H., C.M.)
- Instituto Valenciano de Investigaciones Agrarias, 46113 Moncada, Valencia, Spain (A.G.-L., L.N.)
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Centro di Ricerca per l'Agrumicoltura e le Colture Mediterranee, 95024 Acireale, Italy (C.L., G.R.-R.)
- Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, 95123 Catania, Italy (G.L.C.)
- United States Department of Agriculture-Agricultural Research Service National Clonal Germplasm Repository for Citrus and Dates, Riverside, California 92507-5437 (M.L.K., R.K.)
- University of California, Riverside, California 92521 (C.R.)
- Key Laboratory of Horticultural Plant Biology of the Ministry of Education, Huazhong Agricultural University, Wuhan 430070, People's Republic of China (Q.X., X.D.)
- Institut National de la Recherche Agronomique, UR1115 PSH, F-84914 Avignon, France (A.-L.F.); and
- CIRAD, Unité Mixte de Recherche AGAP, Station Institut National de la Recherche Agronomique, F-20230 San Giuliano, France (Y.F.)
| | - Yann Froelicher
- John Innes Centre, Norwich NR4 7UH, United Kingdom (E.B., L.H., C.M.)
- Instituto Valenciano de Investigaciones Agrarias, 46113 Moncada, Valencia, Spain (A.G.-L., L.N.)
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Centro di Ricerca per l'Agrumicoltura e le Colture Mediterranee, 95024 Acireale, Italy (C.L., G.R.-R.)
- Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, 95123 Catania, Italy (G.L.C.)
- United States Department of Agriculture-Agricultural Research Service National Clonal Germplasm Repository for Citrus and Dates, Riverside, California 92507-5437 (M.L.K., R.K.)
- University of California, Riverside, California 92521 (C.R.)
- Key Laboratory of Horticultural Plant Biology of the Ministry of Education, Huazhong Agricultural University, Wuhan 430070, People's Republic of China (Q.X., X.D.)
- Institut National de la Recherche Agronomique, UR1115 PSH, F-84914 Avignon, France (A.-L.F.); and
- CIRAD, Unité Mixte de Recherche AGAP, Station Institut National de la Recherche Agronomique, F-20230 San Giuliano, France (Y.F.)
| | - Luis Navarro
- John Innes Centre, Norwich NR4 7UH, United Kingdom (E.B., L.H., C.M.)
- Instituto Valenciano de Investigaciones Agrarias, 46113 Moncada, Valencia, Spain (A.G.-L., L.N.)
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Centro di Ricerca per l'Agrumicoltura e le Colture Mediterranee, 95024 Acireale, Italy (C.L., G.R.-R.)
- Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, 95123 Catania, Italy (G.L.C.)
- United States Department of Agriculture-Agricultural Research Service National Clonal Germplasm Repository for Citrus and Dates, Riverside, California 92507-5437 (M.L.K., R.K.)
- University of California, Riverside, California 92521 (C.R.)
- Key Laboratory of Horticultural Plant Biology of the Ministry of Education, Huazhong Agricultural University, Wuhan 430070, People's Republic of China (Q.X., X.D.)
- Institut National de la Recherche Agronomique, UR1115 PSH, F-84914 Avignon, France (A.-L.F.); and
- CIRAD, Unité Mixte de Recherche AGAP, Station Institut National de la Recherche Agronomique, F-20230 San Giuliano, France (Y.F.)
| | - Cathie Martin
- John Innes Centre, Norwich NR4 7UH, United Kingdom (E.B., L.H., C.M.)
- Instituto Valenciano de Investigaciones Agrarias, 46113 Moncada, Valencia, Spain (A.G.-L., L.N.)
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Centro di Ricerca per l'Agrumicoltura e le Colture Mediterranee, 95024 Acireale, Italy (C.L., G.R.-R.)
- Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, 95123 Catania, Italy (G.L.C.)
- United States Department of Agriculture-Agricultural Research Service National Clonal Germplasm Repository for Citrus and Dates, Riverside, California 92507-5437 (M.L.K., R.K.)
- University of California, Riverside, California 92521 (C.R.)
- Key Laboratory of Horticultural Plant Biology of the Ministry of Education, Huazhong Agricultural University, Wuhan 430070, People's Republic of China (Q.X., X.D.)
- Institut National de la Recherche Agronomique, UR1115 PSH, F-84914 Avignon, France (A.-L.F.); and
- CIRAD, Unité Mixte de Recherche AGAP, Station Institut National de la Recherche Agronomique, F-20230 San Giuliano, France (Y.F.)
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Roome A, Hill L, Al-Feghali V, Murnock CG, Goodsell JA, Spathis R, Garruto RM. Impact of white-tailed deer on the spread of Borrelia burgdorferi. Med Vet Entomol 2017; 31:1-5. [PMID: 27699814 DOI: 10.1111/mve.12191] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 05/12/2016] [Accepted: 07/07/2016] [Indexed: 06/06/2023]
Abstract
There is a public perception that the white-tailed deer Odocoileus virginianus (Artiodactyla: Cervidae) is the main reservoir supporting the maintenance and spread of the causative agent of Lyme disease, Borrelia burgdorferi. This study examines the pathogen prevalence rate of Borrelia in adult Ixodes scapularis (Ixodida: Ixodidae), the black-legged tick, collected from white-tailed deer and compares it with pathogen prevalence rates in adult ticks gathered by dragging vegetation in two contiguous counties west of the Hudson Valley in upstate New York. In both Broome and Chenango Counties, attached and unattached ticks harvested from white-tailed deer had significantly lower prevalences of B. burgdorferi than those collected from vegetation. No attached ticks on deer (n = 148) in either county, and only 2.4 and 7.3% of unattached ticks (n = 389) in Broome and Chenango Counties, respectively, were harbouring the pathogen. This contrasts with the finding that 40.8% of ticks in Broome County and 46.8% of ticks in Chenango County collected from vegetation harboured the pathogen. These data suggest that a mechanism in white-tailed deer may aid in clearing the pathogen from attached deer ticks, although white-tailed deer do contribute to the spatial distribution of deer tick populations and also serve as deadend host breeding sites for ticks.
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Affiliation(s)
- A Roome
- Laboratory of Biomedical Anthropology and Neurosciences, Graduate Programme in Biomedical Anthropology, Department of Anthropology, State University of New York, Binghamton, NY, U.S.A
- Department of Anthropology, State University of New York, Binghamton, NY, U.S.A
| | - L Hill
- Laboratory of Biomedical Anthropology and Neurosciences, Graduate Programme in Biomedical Anthropology, Department of Anthropology, State University of New York, Binghamton, NY, U.S.A
- Department of Anthropology, State University of New York, Binghamton, NY, U.S.A
- Regeneron Pharmaceuticals, Inc., Rensselaer, NY, U.S.A
| | - V Al-Feghali
- Laboratory of Biomedical Anthropology and Neurosciences, Graduate Programme in Biomedical Anthropology, Department of Anthropology, State University of New York, Binghamton, NY, U.S.A
- College of Osteopathic Medicine, New York Institute of Technology, Glen Head, NY, U.S.A
| | - C G Murnock
- Laboratory of Biomedical Anthropology and Neurosciences, Graduate Programme in Biomedical Anthropology, Department of Anthropology, State University of New York, Binghamton, NY, U.S.A
- Department of Anthropology, State University of New York, Binghamton, NY, U.S.A
- Icahn School of Medicine at Mount Sinai, Division of Liver Diseases, New York, NY, U.S.A
| | - J A Goodsell
- Laboratory of Biomedical Anthropology and Neurosciences, Graduate Programme in Biomedical Anthropology, Department of Anthropology, State University of New York, Binghamton, NY, U.S.A
- Department of Anthropology, State University of New York, Binghamton, NY, U.S.A
- Banner Health, Phoenix, AZ, U.S.A
| | - R Spathis
- Laboratory of Biomedical Anthropology and Neurosciences, Graduate Programme in Biomedical Anthropology, Department of Anthropology, State University of New York, Binghamton, NY, U.S.A
- Department of Anthropology, State University of New York, Binghamton, NY, U.S.A
| | - R M Garruto
- Laboratory of Biomedical Anthropology and Neurosciences, Graduate Programme in Biomedical Anthropology, Department of Anthropology, State University of New York, Binghamton, NY, U.S.A
- Department of Anthropology, State University of New York, Binghamton, NY, U.S.A
- Department of Biological Sciences, State University of New York, Binghamton, NY, U.S.A
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50
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Kaufman CS, Hall W, Behrndt V, Wolgamot G, Hill L, Zacharias K, Rogers A, Nix S, Schnell N. Abstract P3-13-20: Use of a 3-D bioabsorbable tissue marker in 61 patients over two years. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p3-13-20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Breast conservation surgery (BCS) may preserve the breast but many women have less than optimal cosmetic outcomes. Increasingly, this has been addressed by the use of oncoplastic reconstruction.Now, targeting radiation treatment for boost or partial breast irradiation (PBI) using the seroma has become more difficult due to the adjacent tissue rearrangement and resultant “benign” seromas. Since the radiation dose generated increases by the third power of the radius (r3), there is a need to accurately focus radiation therapy to avoid chronic radiation side effects.We have used a 3-dimensional bioabsorbable tissue marker to accurately target the tumor bed while excluding inadvertent seromas caused by oncoplastic procedures. We report on tissue marker implantation on 61 consecutive breast conservation patients in regards to targeting, impact on cosmesis, imaging followup, ease of re-excision, as well as side effects and patient satisfaction.
METHODS: Consecutive lumpectomy patients who were candidates for targeted radiation therapy were considered for implantation with the 3-D bioabsorbable marker from May 2014 to June 2016. The tissue marker has a fixed array of 6 titanium clips and was sutured to the site of the excised breast cancer during lumpectomy.The framework of the implant resorbs slowly over time, while the clips remain permanently. All patients had oncoplastic reconstruction with total implant coverage. The marker was utilized for boost or partial breast irradiation (PBI) planning or treatment targeting. Data includes patient demographics, breast size, tumor characteristics, surgical and radiotherapy techniques, follow-up imaging, cosmesis and patient satisfaction.
Results:Data on 61 patients with median follow-up 12.7 months was analyzed (range 1.5–25.5). Median age was 62.4 years (range 33-74), 5 of women were postmenopausal and 15% had comorbidities. Cancer histology was in-situ (13%), invasive ductal (84%), invasive lobular (3%) of sizes T0 (13%), T1 (59%), T2 (25%), T3-4 (3%). Laterality and tumor location within the breast were typical. Re-excisions occurred in 11% of patients. No infections occurred in the postoperative period. One infection occurred with chemotherapy and another with repeated aspirations of oncoplastic area.No device was removed for infection, misplacement or patient-generated concerns. No cancer recurrences have been reported. Size of device used reflected size of the tumor; 2X2cm (44%), 2X3cm (34%) and 3X3cm (20%). The device was utilized by radiation oncologists for boost or PBI planning and treatment. Data on ease of setup and boost planning is being collected. Mammography at one year demonstrated marker clips coalescing as the bioabsorbable device dissolves. Evaluation of cosmetic appearance has shown good to excellent cosmesis as judged separately by both physicians and patients (92% and 94%).
Conclusions: Initial experience with 61 patients implanted with a novel 3-D absorbable device prospectively followed for an average of 12 months can be used in an array of breast cancer patients without device specific morbidity. Good to excellent cosmesis may be related to the addition of volume to the lumpectomy bed not seen with rearrangement of existing tissues.
Citation Format: Kaufman CS, Hall W, Behrndt V, Wolgamot G, Hill L, Zacharias K, Rogers A, Nix S, Schnell N. Use of a 3-D bioabsorbable tissue marker in 61 patients over two years [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P3-13-20.
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Affiliation(s)
- CS Kaufman
- University of Washington, Bellingham, WA; Bellingham Regional Breast Center, Bellingham, WA; Northwest Radiation Oncology Associates, Bellingham, WA; Mt. Baker Imaging, Bellingham, WA; Northwest Pathologists, Bellingham, WA; Bellingham Ambulatory Surgery Center, Bellingham, WA
| | - W Hall
- University of Washington, Bellingham, WA; Bellingham Regional Breast Center, Bellingham, WA; Northwest Radiation Oncology Associates, Bellingham, WA; Mt. Baker Imaging, Bellingham, WA; Northwest Pathologists, Bellingham, WA; Bellingham Ambulatory Surgery Center, Bellingham, WA
| | - V Behrndt
- University of Washington, Bellingham, WA; Bellingham Regional Breast Center, Bellingham, WA; Northwest Radiation Oncology Associates, Bellingham, WA; Mt. Baker Imaging, Bellingham, WA; Northwest Pathologists, Bellingham, WA; Bellingham Ambulatory Surgery Center, Bellingham, WA
| | - G Wolgamot
- University of Washington, Bellingham, WA; Bellingham Regional Breast Center, Bellingham, WA; Northwest Radiation Oncology Associates, Bellingham, WA; Mt. Baker Imaging, Bellingham, WA; Northwest Pathologists, Bellingham, WA; Bellingham Ambulatory Surgery Center, Bellingham, WA
| | - L Hill
- University of Washington, Bellingham, WA; Bellingham Regional Breast Center, Bellingham, WA; Northwest Radiation Oncology Associates, Bellingham, WA; Mt. Baker Imaging, Bellingham, WA; Northwest Pathologists, Bellingham, WA; Bellingham Ambulatory Surgery Center, Bellingham, WA
| | - K Zacharias
- University of Washington, Bellingham, WA; Bellingham Regional Breast Center, Bellingham, WA; Northwest Radiation Oncology Associates, Bellingham, WA; Mt. Baker Imaging, Bellingham, WA; Northwest Pathologists, Bellingham, WA; Bellingham Ambulatory Surgery Center, Bellingham, WA
| | - A Rogers
- University of Washington, Bellingham, WA; Bellingham Regional Breast Center, Bellingham, WA; Northwest Radiation Oncology Associates, Bellingham, WA; Mt. Baker Imaging, Bellingham, WA; Northwest Pathologists, Bellingham, WA; Bellingham Ambulatory Surgery Center, Bellingham, WA
| | - S Nix
- University of Washington, Bellingham, WA; Bellingham Regional Breast Center, Bellingham, WA; Northwest Radiation Oncology Associates, Bellingham, WA; Mt. Baker Imaging, Bellingham, WA; Northwest Pathologists, Bellingham, WA; Bellingham Ambulatory Surgery Center, Bellingham, WA
| | - N Schnell
- University of Washington, Bellingham, WA; Bellingham Regional Breast Center, Bellingham, WA; Northwest Radiation Oncology Associates, Bellingham, WA; Mt. Baker Imaging, Bellingham, WA; Northwest Pathologists, Bellingham, WA; Bellingham Ambulatory Surgery Center, Bellingham, WA
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