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Papp KA, Beyska-Rizova S, Gantcheva ML, Slavcheva Simeonova E, Brezoev P, Celic M, Groppa L, Blicharski T, Selmanagic A, Kalicka-Dudzik M, Calin CA, Trailovic N, Ramon M, Bareket-Samish A, Harpaz Z, Farbstein M, Silverman MH, Fishman P. Efficacy and safety of piclidenoson in plaque psoriasis: Results from a randomized phase 3 clinical trial (COMFORT-1). J Eur Acad Dermatol Venereol 2024; 38:1112-1120. [PMID: 38279575 DOI: 10.1111/jdv.19811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 10/27/2023] [Indexed: 01/28/2024]
Abstract
OBJECTIVE A3 adenosine receptor (A3AR) is overexpressed in the skin and peripheral blood mononuclear cells of psoriasis patients. We investigated the efficacy/safety of piclidenoson (CF101), an orally bioavailable A3AR agonist that inhibits IL-17 and IL-23 production in keratinocytes, in moderate-to-severe plaque psoriasis. METHODS The randomized, placebo- and active-controlled, double-blind phase 3 COMFORT-1 trial randomized patients (3:3:3:2) to piclidenoson 2 mg BID, piclidenoson 3 mg BID, apremilast 30 mg BID or placebo. At Week 16, patients in the placebo arm were re-randomized (1:1:1) to piclidenoson 2 mg BID, piclidenoson 3 mg BID or apremilast 30 mg BID. The primary end point was the proportion of patients achieving ≥75% improvement in Psoriasis Area and Severity Index (PASI) from baseline (PASI-75) at Week 16 versus placebo. RESULTS A total of 529 patients were randomized and received ≥1 dose of study medication (safety population). The efficacy analysis population for the primary end point included 426 patients (piclidenoson 2 mg BID, 127; piclidenoson 3 mg BID, 103; apremilast, 118; placebo, 78). Piclidenoson at 2 and 3 mg BID exhibited similar efficacy. The primary end point was met with the 3 mg BID dose: PASI 75 rate of 9.7% versus 2.6% for piclidenoson versus placebo, p = 0.037. The PASI responses with piclidenoson continued to increase throughout the study period in a linear manner. At week 32, analysis in the per-protocol population showed that a greater proportion of patients in the piclidenoson 3 mg BID arm (51/88, 58.0%) achieved improvement from baseline in Psoriasis Disability Index (PDI) compared to apremilast (59/108, 55.1%), and the test for noninferiority trended towards significance (p = 0.072). The safety/tolerability profile of piclidenoson was excellent and superior to apremilast. CONCLUSIONS Piclidenoson demonstrated efficacy responses that increased over time alongside a favourable safety profile. These findings support its continued clinical development as a psoriasis treatment (ClinicalTrials.gov identifier: NCT03168256).
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Affiliation(s)
- K A Papp
- Probity Medical Research, Waterloo, Ontario, Canada
- University of Toronto, Toronto, Ontario, Canada
| | - S Beyska-Rizova
- Multiprofile Hospital for Active Treatment, Pazardzhik, Bulgaria
| | | | | | - P Brezoev
- Diagnostic-Consultative Aleksandrovska, Sofia, Bulgaria
| | - M Celic
- Clinical Centre of Republika Srpska, Banja Luka, Bosnia and Herzegovina
| | - L Groppa
- Spitalul Clinic Republican, Chisinau, Moldova
| | - T Blicharski
- Lubelskie Centrum Diagnostyczne, Świdnik, Poland
| | - A Selmanagic
- Clinical Centre of Sarajevo University, Sarajevo, Bosnia and Herzegovina
| | | | - C A Calin
- SC PELICAN Impex SRL, Oradea, Romania
| | | | - M Ramon
- Rambam Medical Center, Haifa, Israel
| | | | - Z Harpaz
- Can-Fite BioPharma, Petah Tikva, Israel
| | | | | | - P Fishman
- Can-Fite BioPharma, Petah Tikva, Israel
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Teran E, Pirosanto Y, Tribulo P, Ramon M, Antonini A, Molina A, Demyda-Peyrás S. 34 Sperm kinetic subpopulations in samples from Angus and Holstein bulls vary differentially in a longitudinal assay. Reprod Fertil Dev 2022. [DOI: 10.1071/rdv35n2ab34] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022] Open
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3
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Teran E, Molina A, Ramon M, Morales R, Pirosanto Y, Peña Rodriguez Z, Demyda-Peyrás S. 115 Sperm motility subpopulations are correlated with fertility in Retinta bulls. Reprod Fertil Dev 2021; 34:294-295. [PMID: 35231252 DOI: 10.1071/rdv34n2ab115] [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: 11/23/2022] Open
Affiliation(s)
- E Teran
- Instituto de Genética Veterinaria (IGEVET), La Plata, Buenos Aires, Argentina
| | - A Molina
- Departamento de Genética, Córdoba, Córdoba, Spain
| | - M Ramon
- Centro Regional de Selección y Reproducción Animal de Castilla (CERCYRA), Valdepeñas, Castilla La Mancha, Spain
| | - R Morales
- Departamento de Genética, Córdoba, Córdoba, Spain
| | - Y Pirosanto
- Instituto de Genética Veterinaria (IGEVET), La Plata, Buenos Aires, Argentina
| | | | - S Demyda-Peyrás
- Departamento de Producción Animal, La Plata, Buenos Aires, Argentina
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Granot M, Yakov S, Kuperman P, Yosipovitch G, Ramon M. Catastrophizing thinking towards itch and pain in chronic itch patients. J Eur Acad Dermatol Venereol 2020; 35:e241-e242. [PMID: 33010086 DOI: 10.1111/jdv.16975] [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: 11/30/2022]
Affiliation(s)
- M Granot
- The Faculty of Social Welfare and Health Studies, University of Haifa, Haifa, Israel.,The Laboratory of Clinical Neurophysiology, The Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - S Yakov
- Department of Dermatology, Rambam Health Care Campus, Haifa, Israel
| | - P Kuperman
- The Faculty of Social Welfare and Health Studies, University of Haifa, Haifa, Israel.,The Laboratory of Clinical Neurophysiology, The Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - G Yosipovitch
- Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, Miami Itch Center, University of Miami School of Medicine, Miami, FL, USA
| | - M Ramon
- Department of Dermatology, Rambam Health Care Campus, Haifa, Israel
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Poulin Y, Ramon M, Rosoph L, Weisman J, Mendelsohn A, Parno J, Rozzo S, Lee P. Efficacy of tildrakizumab by patient demographic and disease characteristics across a phase 2b and 2 phase 3 trials in patients with moderate‐to‐severe chronic plaque psoriasis. J Eur Acad Dermatol Venereol 2020; 34:1500-1509. [DOI: 10.1111/jdv.16187] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 12/17/2019] [Indexed: 12/28/2022]
Affiliation(s)
- Y. Poulin
- Université Laval Hôpital Hôtel‐Dieu de Québec Québec City QC Canada
- Centre de Recherche Dermatologique du Québec métropolitain Québec City QC Canada
| | - M. Ramon
- Department of Dermatology Rambam Health Campus Haifa Israel
| | - L. Rosoph
- North Bay Dermatology Centre North Bay ON Canada
| | - J. Weisman
- Medical Dermatology Specialists, Inc. Atlanta GA USA
| | | | - J. Parno
- Sun Pharmaceutical Industries, Inc. Princeton NJ USA
| | - S.J. Rozzo
- Sun Pharmaceutical Industries, Inc. Princeton NJ USA
| | - P. Lee
- Center for Clinical Studies Webster TX USA
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Rodriguez-Fanjul J, Jordan I, Balaguer M, Batista-Muñoz A, Ramon M, Bobillo-Perez S. Early surfactant replacement guided by lung ultrasound in preterm newborns with RDS: the ULTRASURF randomised controlled trial. Eur J Pediatr 2020; 179:1913-1920. [PMID: 32710304 PMCID: PMC7378405 DOI: 10.1007/s00431-020-03744-y] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 07/13/2020] [Accepted: 07/16/2020] [Indexed: 02/08/2023]
Abstract
This study aimed to investigate whether using lung ultrasound (LUS) scores in premature newborns with respiratory distress syndrome (RDS) allows for earlier surfactant therapy (within the first 3 h of life) than using FiO2 criteria. This was a randomised, non-blinded clinical trial conducted in a neonatal intensive care unit. The inclusion criteria were newborns with a gestational age of ≤ 32 weeks and RDS. Patients meeting the inclusion criteria were randomly assigned to two groups: the ultrasound group, administered surfactant based on LUS score and/or FiO2 threshold, and the control group, guided by FiO2 only. Fifty-six patients were included. The ultrasound group received surfactant earlier (1 h of life vs. 6 h, p < 0.001), with lower FiO2 (25% vs. 30%, p = 0.016) and lower CO2 (48 vs. 54, p = 0.011). After surfactant treatment, newborns in the ultrasound group presented a greater SpO2 (p = 0.001) and SpO2/FiO2 ratio (p = 0.012).Conclusions: LUS score allowed an earlier surfactant therapy, reduced oxygen exposure early in life and a better oxygenation after the treatment. This early surfactant replacement may lead to reduced oxygen exposure. What is Known: • Lung ultrasound scores predict the need for surfactant therapy in premature newborns. What is New: • This study shows that using lung ultrasound scores improves the timeliness of surfactant replacement compared with using FiO2 alone.
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Affiliation(s)
- Javier Rodriguez-Fanjul
- Neonatal Intensive Care Unit, Paediatrics Department, Hospital Germans Trias i Pujol, Universitat Autònoma de Barcelona, Badalona, Spain.
| | - I. Jordan
- grid.5841.80000 0004 1937 0247Paediatric Intensive Care Unit, Hospital Sant Joan de Déu, Universitat de Barcelona, Barcelona, Spain ,grid.466571.70000 0004 1756 6246Paediatric Infectious Diseases Research Group, Institut de Recerca Hospital Sant Joan de Déu, CIBERESP, Barcelona, Spain
| | - M. Balaguer
- grid.5841.80000 0004 1937 0247Paediatric Intensive Care Unit, Hospital Sant Joan de Déu, Universitat de Barcelona, Barcelona, Spain
| | - A. Batista-Muñoz
- grid.411435.60000 0004 1767 4677Neonatal Intensive Care Unit, Paediatrics Department, Hospital Joan XXIII, Tarragona, Spain
| | - M. Ramon
- grid.411435.60000 0004 1767 4677Neonatal Intensive Care Unit, Paediatrics Department, Hospital Joan XXIII, Tarragona, Spain
| | - S. Bobillo-Perez
- grid.5841.80000 0004 1937 0247Paediatric Intensive Care Unit, Hospital Sant Joan de Déu, Universitat de Barcelona, Barcelona, Spain ,grid.5841.80000 0004 1937 0247Disorders of Immunity and Respiration of the Paediatric Critical Patient Research Group, Institut de Recerca Hospital Sant Joan de Déu, Universitat de Barcelona, Barcelona, Spain
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Ramon M, Dang TVT, Broeckx T, Hulsmans S, Crepin N, Sheen J, Rolland F. Default Activation and Nuclear Translocation of the Plant Cellular Energy Sensor SnRK1 Regulate Metabolic Stress Responses and Development. Plant Cell 2019; 31:1614-1632. [PMID: 31123051 PMCID: PMC6635846 DOI: 10.1105/tpc.18.00500] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 04/12/2019] [Accepted: 05/06/2019] [Indexed: 05/18/2023]
Abstract
Energy homeostasis is vital to all living organisms. In eukaryotes, this process is controlled by fuel gauging protein kinases: AMP-activated kinase in mammals, Sucrose Non-Fermenting1 (SNF1) in yeast (Saccharomyces cerevisiae), and SNF1-related kinase1 (SnRK1) in plants. These kinases are highly conserved in structure and function and (according to this paradigm) operate as heterotrimeric complexes of catalytic-α and regulatory β- and γ-subunits, responding to low cellular nucleotide charge. Here, we determined that the Arabidopsis (Arabidopsis thaliana) SnRK1 catalytic α-subunit has regulatory subunit-independent activity, which is consistent with default activation (and thus controlled repression), a strategy more generally used by plants. Low energy stress (caused by darkness, inhibited photosynthesis, or hypoxia) also triggers SnRK1α nuclear translocation, thereby controlling induced but not repressed target gene expression to replenish cellular energy for plant survival. The myristoylated and membrane-associated regulatory β-subunits restrict nuclear localization and inhibit target gene induction. Transgenic plants with forced SnRK1α-subunit localization consistently were affected in metabolic stress responses, but their analysis also revealed key roles for nuclear SnRK1 in leaf and root growth and development. Our findings suggest that plants have modified the ancient, highly conserved eukaryotic energy sensor to better fit their unique lifestyle and to more effectively cope with changing environmental conditions.
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Affiliation(s)
- Matthew Ramon
- Laboratory for Molecular Plant Biology, Biology Department, Katholieke Universiteit Leuven, 3001 Heverlee-Leuven, Belgium
- Department of Molecular Biology and Centre for Computational and Integrative Biology, Massachusetts General Hospital, and Department of Genetics, Harvard Medical School, Boston, Massachusetts 02114
| | - Tuong Vi T Dang
- Laboratory for Molecular Plant Biology, Biology Department, Katholieke Universiteit Leuven, 3001 Heverlee-Leuven, Belgium
| | - Tom Broeckx
- Laboratory for Molecular Plant Biology, Biology Department, Katholieke Universiteit Leuven, 3001 Heverlee-Leuven, Belgium
| | - Sander Hulsmans
- Laboratory for Molecular Plant Biology, Biology Department, Katholieke Universiteit Leuven, 3001 Heverlee-Leuven, Belgium
| | - Nathalie Crepin
- Laboratory for Molecular Plant Biology, Biology Department, Katholieke Universiteit Leuven, 3001 Heverlee-Leuven, Belgium
| | - Jen Sheen
- Department of Molecular Biology and Centre for Computational and Integrative Biology, Massachusetts General Hospital, and Department of Genetics, Harvard Medical School, Boston, Massachusetts 02114
| | - Filip Rolland
- Laboratory for Molecular Plant Biology, Biology Department, Katholieke Universiteit Leuven, 3001 Heverlee-Leuven, Belgium
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Naegeli H, Bresson JL, Dalmay T, Dewhurst IC, Epstein MM, Firbank LG, Guerche P, Hejatko J, Moreno FJ, Mullins E, Nogué F, Rostoks N, Sánchez Serrano JJ, Savoini G, Veromann E, Veronesi F, Álvarez F, Ardizzone M, Fernandez Dumont A, Gennaro A, Gómez Ruiz JÁ, Lanzoni A, Neri FM, Papadopoulou N, Ramon M. Assessment of genetically modified maize MON 89034 × 1507 × NK603 × DAS-40278-9 and subcombinations independently of their origin for food and feed uses, import and processing, under Regulation (EC) No 1829-2003 (application EFSA-GMO-NL-2013-112). EFSA J 2019; 17:e05522. [PMID: 32626068 PMCID: PMC7009169 DOI: 10.2903/j.efsa.2019.5522] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Maize MON 89034 × 1507 × NK603 × DAS‐40278‐9 (four‐event stack maize) was produced by conventional crossing to combine four single events: MON 89034, 1507, NK603 and DAS‐40278‐9. The GMO Panel previously assessed the four single events and four of their subcombinations and did not identify safety concerns. No new data on the maize single events or their four subcombinations that could lead to modification of the original conclusions on their safety have been identified. The molecular characterisation, comparative analysis (agronomic, phenotypic and compositional characteristics) and the outcome of the toxicological, allergenicity and nutritional assessment indicates that the combination of the single maize events and of the newly expressed proteins in the four‐event stack maize does not give rise to food/feed safety and nutritional concerns. The GMO Panel concludes that the four‐event stack maize, as described in this application, is as safe as and nutritionally equivalent to its non‐GM comparator and the non‐GM reference varieties tested. In the case of accidental release of viable grains of the four‐event stack maize into the environment, this would not raise environmental safety concerns. The GMO Panel assessed the likelihood of interactions among the single events in the six maize subcombinations for which no experimental data were provided, and concludes that these are expected to be as safe as and nutritionally equivalent to the single events, the previously assessed subcombinations and the four‐event stack maize. The post‐market environmental monitoring plan and reporting intervals are in line with the intended uses of the four‐event stack maize. No post‐market monitoring for food/feed is necessary. The GMO Panel concludes that the four‐event stack maize and its subcombinations are as safe as its non‐GM comparator and the tested non‐GM reference varieties with respect to potential effects on human and animal health and the environment.
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Naegeli H, Bresson JL, Dalmay T, Dewhurst IC, Epstein MM, Firbank LG, Guerche P, Hejatko J, Moreno FJ, Mullins E, Nogué F, Rostoks N, Sánchez Serrano JJ, Savoini G, Veromann E, Veronesi F, Ardizzone M, Fernandez Dumont A, Gennaro A, Gómez Ruiz JÁ, Lanzoni A, Neri FM, Papadopoulou N, Ramon M. Assessment of genetically modified maize MON 89034 × 1507 × MON 88017 × 59122 × DAS-40278-9 and subcombinations independently of their origin for food and feed uses, import and processing under Regulation (EC) No 1829/2003 (application EFSA-GMO-NL-2013-113). EFSA J 2019; 17:e05521. [PMID: 32665790 PMCID: PMC7339631 DOI: 10.2903/j.efsa.2019.5521] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Maize MON 89034 × 1507 × MON 88017 × 59122 × DAS-40278-9 (five-event stack maize) was produced by conventional crossing to combine five single events: MON 89034, 1507, MON 88017, 59122 and DAS-40278-9. The GMO Panel previously assessed the 5 single maize events and 11 of their subcombinations and did not identify safety concerns. No new data on the single maize events or their 11 subcombinations that could modify the original conclusions on their safety were identified. The molecular characterisation, comparative analysis (agronomic, phenotypic and compositional characteristics) and the outcome of the toxicological, allergenicity and nutritional assessment indicates that the combination of the single maize events and of the newly expressed proteins in the five-event stack maize does not give rise to food and feed safety and nutritional concerns. The GMO Panel concludes that the five-event stack maize, as described in this application, is as safe as and nutritionally equivalent to its non-GM comparator and the non-GM reference varieties tested. In the case of accidental release of the five-event stack maize into the environment, this would not raise environmental safety concerns. The GMO Panel assessed the likelihood of interactions among the single events in the 14 maize subcombinations for which no experimental data were provided, and concludes that they are expected to be as safe as and nutritionally equivalent to the single events, the previously assessed subcombinations and the five-event stack maize. The post-market environmental monitoring plan and reporting intervals are in line with the intended uses of the five-event stack maize. No post-market monitoring of food/feed is considered necessary. The GMO Panel concludes that the five-event stack maize and its subcombinations are as safe as its non-GM comparator and the tested non-GM reference varieties with respect to potential effects on human and animal health and the environment.
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Aguilera J, Aguilera‐Gomez M, Barrucci F, Cocconcelli PS, Davies H, Denslow N, Lou Dorne J, Grohmann L, Herman L, Hogstrand C, Kass GEN, Kille P, Kleter G, Nogué F, Plant NJ, Ramon M, Schoonjans R, Waigmann E, Wright MC. EFSA Scientific Colloquium 24 – 'omics in risk assessment: state of the art and next steps. ACTA ACUST UNITED AC 2018. [DOI: 10.2903/sp.efsa.2018.en-1512] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | - Lutz Grohmann
- Federal Office of Consumer Protection and Food Safety
| | | | | | | | | | | | - Fabien Nogué
- French National Institute for Agricultural Research INRA
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Gennaro A, Olaru I, Papadopoulou N, Ramon M. Risk assessment of new sequencing information on genetically modified carnation FLO-40689-6. EFSA J 2018; 16:e05424. [PMID: 32626050 PMCID: PMC7009496 DOI: 10.2903/j.efsa.2018.5424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
The GMO Panel has previously assessed genetically modified (GM) carnation FLO‐40689‐6 and concluded that there is no scientific reason to consider that the import, distribution and retailing in the EU of carnation FLO‐40689‐6 cut flowers for ornamental use will cause any adverse effects on human health or the environment. On 27 October 2017, the European Commission requested EFSA to analyse new nucleic acid sequencing data and updated bioinformatics data for carnation FLO‐40689‐6 and to indicate whether the conclusions of the GMO Panel on the previously assessed GM carnation FLO‐40689‐6 remain valid. The new sequencing data indicated the correction of one nucleotide compared to the sequencing data originally provided. The new sequence was corrected by removal of one nucleotide from the polylinker region in locus 1. The removal of this base pair reported in the new nucleic acid sequencing data for carnation FLO‐40689‐6 has been already present in the original plant material used for the risk assessment. Thus, with the exception of bioinformatics analyses, the studies performed for the risk assessment of GM carnation FLO‐40689‐6 remain valid. The new sequencing data and the bioinformatic analyses performed on the new sequence, did not give rise to safety issues. Therefore, EFSA concludes that the original risk assessment of carnation FLO‐40689‐6 remains valid.
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Papadopoulou N, Ramon M. Risk assessment of new sequencing information for genetically modified soybean BPS-CV127-9. EFSA J 2018; 16:e05425. [PMID: 32626051 PMCID: PMC7009553 DOI: 10.2903/j.efsa.2018.5425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
The GMO Panel has previously assessed genetically modified (GM) soybean BPS-CV127-9. This soybean was found to be as safe and nutritious as its conventional counterpart and commercial soybean varieties with respect to potential effects on human and animal health and the environment in the context of its intended uses. On 16 February 2018, European Commission requested EFSA to analyse new nucleic acid sequencing data and updated bioinformatics data for GM soybean BPS-CV127-9 and to indicate whether the previous conclusions of the GMO Panel on safety of GM soybean BPS-CV127-9 remain valid. The new sequencing data indicated a two nucleotide difference in the unannotated Arabidopsis genomic DNA sequence downstream of the 3' untranslated region of the ahasl (also referred to as csr1-2) gene as compared to the sequencing data originally provided. One of these nucleotide differences reported in the new nucleic acid sequencing data from GM soybean event BPS-CV127-9 was shown to be already present in the original plant material used for the risk assessment. However, for the other nucleotide difference reported, no evidence could be provided to differentiate between a sequencing error and point-mutation. With the exception of bioinformatics analyses, the studies performed for the risk assessment of the single event soybean BPS-CV127-9 remain valid. The new sequencing data and the bioinformatics analyses performed on the new sequence did not give rise to safety issues. Therefore, EFSA concludes that the original risk assessment of soybean BPS-CV127-9 remains valid.
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Gennaro A, Olaru I, Papadopoulou N, Ramon M. Risk assessment of new sequencing information on genetically modified carnation FLO-40685-2. EFSA J 2018; 16:e05396. [PMID: 32626009 PMCID: PMC7009468 DOI: 10.2903/j.efsa.2018.5396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
The GMO Panel has previously assessed genetically modified (GM) carnation FLO-40685-2 and concluded that there is no scientific reason to consider that the import, distribution and retailing in the EU of carnation FLO-40685-2 cut flowers for ornamental use will cause any adverse effects on human health or the environment. On 7 November 2017, European Commission requested EFSA to analyse new nucleic acid sequencing data and updated bioinformatics data for carnation FLO-40685-2 and to indicate whether the conclusions of the GMO Panel on the previously assessed GM carnation FLO-40685-2 remain valid. The new sequencing data indicated an additional three base pairs compared to the sequencing data originally provided: one base pair addition to the polyA tail of each of the two inserted flavonoid 3',5'-hydroxylase elements and one base pair addition to the sequence of one of the two D8 promoters in locus 1. These sequence differences are located outside the coding sequence for the newly expressed proteins and the base pairs described as differences in the new nucleic acid sequencing data for carnation FLO-40685-2 were reported to have been already present in the original plant material used for the risk assessment. Thus, with the exception of bioinformatics analyses, the studies performed for the risk assessment of GM carnation FLO-40685-2 remain valid. The new sequencing data and the bioinformatics analyses performed on the new sequence did not give rise to safety issues. Therefore, EFSA concludes that the original risk assessment of carnation FLO-40685-2 remains valid.
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Casacuberta J, Nogué F, Naegeli H, Birch AN, De Schrijver A, Gralak MA, Guerche P, Manachini B, Messéan A, Nielsen EE, Robaglia C, Rostoks N, Sweet J, Tebbe C, Visioli F, Wal JM, Moxon S, Schneeberger K, Federici S, Ramon M, Papadopoulou N, Jones H. Technical Note on the quality of DNA sequencing for the molecular characterisation of genetically modified plants. EFSA J 2018; 16:e05345. [PMID: 32625981 PMCID: PMC7009663 DOI: 10.2903/j.efsa.2018.5345] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
As part of the risk assessment (RA) requirements for genetically modified (GM) plants, according to Regulation (EU) No 503/2013 and the EFSA guidance on the RA of food and feed from GM plants (EFSA GMO Panel, 2011), applicants need to perform a molecular characterisation of the DNA sequences inserted in the GM plant genome. The European Commission has mandated EFSA to develop a technical note to the applicants on, and checking of, the quality of the methodology, analysis and reporting covering complete sequencing of the insert and flanking regions, insertion site analysis of the GM event, and generational stability and integrity. This Technical Note puts together requirements and recommendations for when DNA sequencing is part of the molecular characterisation of GM plants, in particular for the characterisation of the inserted genetic material at each insertion site and flanking regions, the determination of the copy number of all detectable inserts, and the analysis of the genetic stability of the inserts, when addressed by Sanger sequencing or NGS. This document reflects the current knowledge in scientific-technical methods for generating and verifying, in a standardised manner, DNA sequencing data in the context of RA of GM plants. From 1 October 2018, this Technical Note will replace the JRC guideline of 2016 (updated April 2017) related to the verification and quality assessment of the sequencing of the insert(s) and flanking regions. It does not take into consideration the verification and validation of the detection method which remains under the remit of the JRC.
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Naegeli H, Birch AN, Casacuberta J, De Schrijver A, Gralak MA, Guerche P, Jones H, Manachini B, Messéan A, Nielsen EE, Nogué F, Robaglia C, Rostoks N, Sweet J, Tebbe C, Visioli F, Wal JM, Ardizzone M, De Sanctis G, Fernandez Dumont A, Gennaro A, Gómez Ruiz JA, Lanzoni A, Neri FM, Papadopoulou N, Paraskevopoulos K, Ramon M. Assessment of genetically modified maize MON 87411 for food and feed uses, import and processing, under Regulation (EC) No 1829/2003 (application EFSA-GMO-NL-2015-124). EFSA J 2018; 16:e05310. [PMID: 32625943 PMCID: PMC7009500 DOI: 10.2903/j.efsa.2018.5310] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Maize MON 87411 was developed to confer resistance to corn rootworms (Diabrotica spp.) by the expression of a modified version of the Bacillus thuringiensis cry3Bb1 gene and a DvSnf7 dsRNA expression cassette, and tolerance to glyphosate‐containing herbicides by the expression of a CP4 5‐enolpyruvylshikimate‐3‐phosphate synthase (cp4 epsps) gene. The molecular characterisation data and bioinformatics analyses did not identify issues requiring assessment for food and feed safety. No statistically significant differences in the agronomic and phenotypic characteristics tested between maize MON 87411 and its conventional counterpart were identified. The compositional analysis of maize MON 87411 did not identify differences that required further assessment except for palmitic acid levels in grains from not treated maize MON 87411. The GMO Panel did not identify safety concerns regarding the toxicity and allergenicity of the Cry3Bb1 and CP4 EPSPS proteins, as expressed in maize MON 87411 and found no evidence that the genetic modification might significantly change the overall allergenicity of maize MON 87411. The nutritional impact of maize MON 87411‐derived food and feed is expected to be the same as those derived from the conventional counterpart and non‐GM commercial reference varieties. The GMO Panel concludes that maize MON 87411, as described in this application, is nutritionally equivalent to and as safe as the conventional counterpart and the non‐GM maize reference varieties tested, and no post‐market monitoring of food/feed is considered necessary. In the case of accidental release of viable maize MON 87411 grains into the environment, maize MON 87411 would not raise environmental safety concerns. The post‐market environmental monitoring plan and reporting intervals are in line with the intended uses of maize MON 87411. The GMO Panel concludes that maize MON 87411, as described in this application, is as safe as its conventional counterpart and the tested non‐GM maize reference varieties with respect to potential effects on human and animal health and the environment.
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Chacko A, Bedard ACV, Marks D, Gopalan G, Feirsen N, Uderman J, Chimiklis A, Heber E, Cornwell M, Anderson L, Zwilling A, Ramon M. Sequenced neurocognitive and behavioral parent training for the treatment of ADHD in school-age children. Child Neuropsychol 2018; 24:427-450. [PMID: 28277151 PMCID: PMC6224162 DOI: 10.1080/09297049.2017.1282450] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [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] [Indexed: 01/20/2023]
Abstract
The present study examines the potential of sequencing a neurocognitive intervention with behavioral parent training (BPT) to improve executive functions (EFs), psychiatric symptoms, and multiple indices of functional impairment in school-age children aged 7 to 11 years who have been diagnosed with attention-deficit/hyperactivity disorder (ADHD). Specifically, in a randomized controlled trial design, 85 children were assigned to either Cogmed Working Memory Training (CWMT) followed by an empirically supported, manualized BPT intervention, or to a placebo version of CWMT followed by the same BPT intervention. Working memory maintenance (i.e., attention control/short-term memory), working memory processing and manipulation, ADHD and oppositional defiant disorder (ODD) symptoms, impairment in parent-child dynamics, familial impairment, and overall functional compromise were evaluated as outcomes. The results suggest specific effects of the combined CWMT and BPT program on verbal and nonverbal working memory storage and nonverbal working memory processing and manipulation but no incremental benefits in regard to ADHD symptoms, ODD symptoms, and functional outcomes. The present findings do not support the hypothesis regarding the complementary and augmentative benefits of sequenced neurocognitive and BPT interventions for the treatment of ADHD. These results, the study's limitations, and future directions for research are further discussed.
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Affiliation(s)
- A Chacko
- a Department of Applied Psychology , New York University , NY , USA
| | - A-C V Bedard
- b Department of Applied Psychology and Human Development, Ontario Institute for Studies in Education , University of Toronto , Canada
| | - D Marks
- c Department of Child and Adolescent Psychiatry , New York University School of Medicine , NY , USA
| | - G Gopalan
- d Department of Social Work , University of Maryland at Baltimore , MD , USA
| | - N Feirsen
- e Department of Psychology , City University of New York , NY , USA
| | - J Uderman
- e Department of Psychology , City University of New York , NY , USA
| | - A Chimiklis
- e Department of Psychology , City University of New York , NY , USA
| | - E Heber
- e Department of Psychology , City University of New York , NY , USA
| | - M Cornwell
- e Department of Psychology , City University of New York , NY , USA
| | - L Anderson
- e Department of Psychology , City University of New York , NY , USA
| | - A Zwilling
- e Department of Psychology , City University of New York , NY , USA
| | - M Ramon
- e Department of Psychology , City University of New York , NY , USA
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Naegeli H, Birch AN, Casacuberta J, De Schrijver A, Gralak MA, Guerche P, Jones H, Manachini B, Messéan A, Nielsen EE, Nogué F, Robaglia C, Rostoks N, Sweet J, Tebbe C, Visioli F, Wal JM, Devos Y, Broll H, Ramon M. Assessment of genetically modified maize MON 87403 for food and feed uses, import and processing, under Regulation (EC) No 1829/2003 (application EFSA-GMO-BE-2015-125). EFSA J 2018; 16:e05225. [PMID: 32625854 PMCID: PMC7009425 DOI: 10.2903/j.efsa.2018.5225] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Maize MON 87403 was developed to increase ear biomass at early reproductive phase through the expression of a modified AtHB17 gene from Arabidopsis thaliana, encoding a plant transcription factor of the HD-Zip II family. The molecular characterisation data and bioinformatic analyses did not identify issues requiring assessment for food and feed safety. No statistically significant differences in the agronomic and phenotypic characteristics tested between maize MON 87403 and its conventional counterpart were identified. The compositional analysis of maize MON 87403 did not identify differences that require further assessment. The GMO Panel did not identify safety concerns regarding the toxicity and allergenicity of the AtHB17∆113 protein, as expressed in maize MON 87403. The nutritional value of food and feed derived from maize MON 87403 is not expected to differ from that of food and feed derived from non-genetically modified (GM) maize varieties. Based on the outcome of the studies considered in the comparative analysis and molecular characterisation, the GMO Panel concludes that maize MON 87403 is as safe and nutritious as the conventional counterpart and the non-GM maize reference varieties tested. In the case of accidental release of viable maize MON 87403 grains into the environment, maize MON 87403 would not raise environmental safety concerns. The post-market environmental monitoring plan and reporting intervals are in line with the intended uses of maize MON 87403. In conclusion, the GMO Panel considers that maize MON 87403, as described in this application, is as safe as its conventional counterpart and the tested non-GM maize reference varieties with respect to potential effects on human and animal health and the environment.
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Naegeli H, Birch AN, Casacuberta J, De Schrijver A, Gralak MA, Guerche P, Jones H, Manachini B, Messéan A, Nielsen EE, Nogué F, Robaglia C, Rostoks N, Sweet J, Tebbe C, Visioli F, Wal JM, Fernandez-Dumont A, Gennaro A, Ramon M. Assessment of genetically modified sugar beet H7-1 for renewal of authorisation under Regulation (EC) No 1829/2003 (application EFSA-GMO-RX-006). EFSA J 2017; 15:e05065. [PMID: 32625354 PMCID: PMC7009809 DOI: 10.2903/j.efsa.2017.5065] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Following the submission of application EFSA‐GMO‐RX‐006 under Regulation (EC) No 1829/2003 from KWS SAAT SE and Monsanto Company, the Panel on Genetically Modified Organisms of the European Food Safety Authority (GMO Panel) was asked to deliver a scientific risk assessment on the data submitted in the context of the renewal of authorisation application for the herbicide‐tolerant genetically modified sugar beet H7‐1. The data received in the context of this renewal application contained a systematic search and evaluation of literature, updated bioinformatics analyses and additional documents or studies performed by or on behalf of the applicant. The GMO Panel assessed these data for possible new hazards, modified exposure or new scientific uncertainties identified during the authorisation period and not previously assessed in the context of the original application. Under the assumption that the DNA sequence of the event in sugar beet H7‐1 considered for renewal is identical to the originally assessed event, the GMO Panel concludes that there is no evidence in the context of this renewal application for new hazards, modified exposure or scientific uncertainties that would change the conclusions of the original risk assessment on sugar beet H7‐1.
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Casacuberta J, Nogué F, Olaru I, Ramon M, Waigmann E. Risk assessment of new sequencing information on genetically modified soybean event 305423. EFSA J 2017; 15:e04967. [PMID: 32625628 PMCID: PMC7010212 DOI: 10.2903/j.efsa.2017.4967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
The GMO Panel has previously assessed genetically modified (GM) soybean 305423 as a single event and as part of a two‐event stack, 305423 × 40‐3‐2. These soybean events were found to be as safe as their conventional counterparts and other appropriate comparators with respect to potential effects on human and animal health and the environment. On 23 February 2017, European Commission requested EFSA to analyse new nucleic acid sequencing data and updated bioinformatics data for soybean event 305423 and to indicate whether the previous conclusions of the GMO Panel on the previously assessed GM soybeans remain valid. The new sequencing data indicated a four base pair (bp) difference compared to the sequencing data originally provided: one bp located in the genomic 3′ flanking region, two bp located in a gene silencing cassette and one bp in a partial promoter. These bp reported as differences in the new nucleic acid sequencing data on soybean event 305423 were already present in the original plant material used for the risk assessment. Thus, with the exception of bioinformatics analyses, including an off‐target search with the dsRNA expression cassette, the studies performed for the risk assessment of the single event soybean 305423 and the two‐event stack soybean 305423 × 40‐3‐2 remain valid. The new sequencing data and the bioinformatic analyses performed on the new sequence including the RNAi off‐target search, did not give rise to safety issues. Therefore, EFSA concludes that the original risk assessment of the single soybean event 305423 and the two‐event stack soybean 305423 × 40‐3‐2 remains valid. This publication is linked to the following EFSA Journal article: http://onlinelibrary.wiley.com/doi/10.2903/j.efsa.2017.4968/full
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Abstract
The GMO Panel has previously assessed genetically modified (GM) soybean 40‐3‐2 as a single event and as part of a two‐event stack, 305423 × 40‐3‐2. These soybean events were found to be as safe as their conventional counterparts and other appropriate comparators with respect to potential effects on human and animal health and the environment. On 4 April 2017, European Commission requested EFSA to analyse new nucleic acid sequencing and updated bioinformatics data for soybean event 40‐3‐2 and to indicate whether the conclusions of the GMO Panel on the previously assessed GM soybeans remain valid. The new sequencing data indicated that, the sequence of soybean event 40‐3‐2 as present in the stacked soybean 305423 × 40‐3‐2 contains an additional nucleotide in the 5′ flanking region of a 72 bp additional insert of CP4 EPSPS present in soybean 40‐3‐2. Re‐examination of the original sequencing data of the single soybean event 40‐3‐2 by the applicant, indicated that this additional nucleotide was already present in the original plant material used for the risk assessment of soybean event 40‐3‐2. Thus, with the exception of bioinformatics analyses, the studies performed for the risk assessment of the single event soybean 40‐3‐2 and the two‐event stack soybean 305423 × 40‐3‐2 remain valid. The updated bioinformatic analyses performed on the corrected sequence did not give rise to safety issues. Therefore, EFSA concludes, based on the information provided, that the original risk assessment of the soybean event 40‐3‐2 as a single and the stacked soybean 305423 × 40‐3‐2 remains valid. This publication is linked to the following EFSA Journal article: http://onlinelibrary.wiley.com/doi/10.2903/j.efsa.2017.4967/full
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Franceschi N, Paraskevopoulos K, Waigmann E, Ramon M. Predictive Protein Toxicity and Its Use in Risk Assessment. Trends Biotechnol 2017; 35:483-486. [DOI: 10.1016/j.tibtech.2017.03.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 03/20/2017] [Accepted: 03/21/2017] [Indexed: 11/29/2022]
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Ramon M, Rolland F. Chemical Intervention: New Tools to Dissect Metabolic Signaling. Trends Plant Sci 2017; 22:353-355. [PMID: 28392158 DOI: 10.1016/j.tplants.2017.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 03/12/2017] [Accepted: 03/13/2017] [Indexed: 06/07/2023]
Abstract
The metabolic intermediate trehalose-6-P (T6P) has emerged as a key regulator of plant growth and development, but the underlying mechanisms remain largely elusive. A recent publication reported a new chemical intervention strategy, providing a powerful tool to dissect T6P-mediated metabolic signaling.
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Affiliation(s)
- Matthew Ramon
- European Food Safety Authority, 43126 Parma PR, Italy
| | - Filip Rolland
- Laboratory for Molecular Plant Biology, Biology Department, University of Leuven - KU Leuven, Leuven, Belgium.
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Naegeli H, Birch AN, Casacuberta J, De Schrijver A, Gralak MA, Jones H, Manachini B, Messéan A, Nielsen EE, Nogué F, Robaglia C, Rostoks N, Sweet J, Tebbe C, Visioli F, Wal JM, Poeting A, Álvarez F, Broll H, Ramon M. Scientific opinion on an application by Monsanto (EFSA-GMO-NL-2013-114) for the placing on the market of a herbicide-tolerant genetically modified cotton MON 88701 for food and feed uses, import and processing under Regulation (EC) No 1829/2003. EFSA J 2017; 15:e04746. [PMID: 32625448 PMCID: PMC7010045 DOI: 10.2903/j.efsa.2017.4746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Cotton MON 88701 was developed through Agrobacterium tumefaciens‐mediated transformation to express the dicamba mono‐oxygenase (DMO) protein, conferring tolerance to dicamba, and the phosphinothricin N‐acetyltransferase PAT protein, conferring tolerance to glufosinate ammonium‐based herbicides. The molecular characterisation data and bioinformatics analyses did not identify issues requiring further assessment for food/feed safety. The agronomic and phenotypic characteristics tested revealed no relevant differences between cotton MON 88701 and its conventional counterpart. Since complete compositional results were reported for only three sites, the EFSA Panel on Genetically Modified Organisms (GMO Panel) is not in the position to complete the assessment of the compositional analysis. Moreover, as no 28‐day toxicity study in rodents on the MON 88701 DMO protein was provided, the GMO Panel is not in the position to complete the safety assessment of this protein in cotton MON 88701. Consequently, the GMO Panel cannot complete the toxicological, allergenicity and nutritional assessment of food/feed derived from cotton MON 88701. The safety assessment identified no concerns regarding the potential toxicity and allergenicity of the PAT protein newly expressed in cotton MON 88701. Considering the routes of exposure and limited exposure levels, the GMO Panel concludes that cotton MON 88701 would not give rise to safety concerns in the event of accidental release of viable seeds into the environment. The post‐market environmental monitoring plan and reporting intervals are in line with the intended uses of cotton MON 88701. In conclusion, in the absence of an appropriate comparative assessment and an appropriate assessment of the MON 88701 DMO protein, the GMO Panel is not in a position to complete its food/feed risk assessment of cotton MON 88701. The GMO Panel concludes that the cotton MON 88701 is unlikely to have any adverse effect on the environment in the context of the scope of the application.
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Naegeli H, Birch AN, Casacuberta J, De Schrijver A, Gralak MA, Jones H, Manachini B, Messéan A, Nielsen EE, Nogué F, Robaglia C, Rostoks N, Sweet J, Tebbe C, Visioli F, Wal JM, Álvarez F, Ardizzone M, Liu Y, Neri FM, Ramon M. Scientific opinion on an application by Dow AgroSciences LLC (EFSA-GMO-NL-2012-106) for the placing on the market of genetically modified herbicide-tolerant soybean DAS-44406-6 for food and feed uses, import and processing under Regulation (EC) No 1829/2003. EFSA J 2017; 15:e04738. [PMID: 32625444 PMCID: PMC7009884 DOI: 10.2903/j.efsa.2017.4738] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Soybean DAS‐44406‐6 expresses 5‐enolpyruvyl‐shikimate‐3‐phosphate synthase (2mEPSPS), conferring tolerance to glyphosate‐based herbicides, aryloxyalkanoate dioxygenase (AAD‐12), conferring tolerance to 2,4‐dichlorophenoxyacetic acid (2,4‐D) and other related phenoxy herbicides, and phosphinothricin acetyl transferase (PAT), conferring tolerance to glufosinate ammonium‐based herbicides. The molecular characterisation data and bioinformatics analyses did not identify issues requiring assessment for food/feed safety. The agronomic and phenotypic characteristics revealed no relevant differences between soybean DAS‐44406‐6 and its conventional counterpart, except for pod count, seed count and yield. The compositional analysis identified no differences requiring further assessment, except for an increase (up to 31%) in lectin activity in soybean DAS‐44406‐6. Such increase is unlikely to raise additional concerns for food/feed safety and nutrition of soybean DAS‐44406‐6 as compared to its conventional counterpart and non‐GM reference varieties. There were no concerns regarding the potential toxicity and allergenicity of the three newly expressed proteins, and no evidence that the genetic modification might significantly change the overall allergenicity of soybean DAS‐44406‐6. Soybean DAS‐44406‐6 is as nutritious as its conventional counterpart and the non‐GM soybean reference varieties tested. There are no indications of an increased likelihood of establishment and spread of occasional feral soybean DAS‐44406‐6 plants, unless exposed to the intended herbicides. The likelihood of environmental effects from the accidental release of viable seeds from soybean DAS‐44406‐6 into the environment is therefore very low. The post‐market environmental monitoring plan and reporting intervals are in line with the intended uses of soybean DAS‐44406‐6. In conclusion, the GMO Panel considers that the information available for soybean DAS‐44406‐6 addresses the scientific comments raised by Member States and that soybean DAS‐44406‐6, as described in this application, is as safe as its conventional counterpart and non‐GM soybean reference varieties with respect to potential effects on human and animal health and the environment in the context of the scope of this application.
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Houston R, Moxon S, Nogué F, Papadopoulou N, Ramon M, Waigmann E. Assessment of the potential integration of the DNA plasmid vaccine CLYNAV into the salmon genome. EFSA J 2017; 15:e04689. [PMID: 32625277 PMCID: PMC7009875 DOI: 10.2903/j.efsa.2017.4689] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
The European Commission mandated EFSA to review a new data package provided by the company Elanco, for the possible integration/non‐integration of the DNA plasmid vaccine CLYNAV into the genome of Atlantic salmon (Salmo salar) and to indicate whether EFSA agrees with the conclusions drawn by Elanco. The vaccine is injected into fish to confer protection against pancreas disease caused by the salmonid alphavirus. The majority of the experimental data provided by the company was for muscle tissue close to the injection site and for gonadal tissue. EFSA considers that the long persistence of DNA plasmid in muscle tissue close to the injection site and the potential heritability of an integration event in gonad cells support the focus of the assessment on both these tissues. The experimental data did not provide scientifically robust evidence for a true integration event. The company overall concluded that the likelihood of integration is negligible, based on considerations in the context of the company's environmental risk assessment, but did not provide a quantitative value for the rate of integration linked to the term ‘negligible’. It is therefore not possible to evaluate this statement specifically with regard to integration rates. EFSA notes that knowledge about homologous and non‐homologous integration predicts that integration could occur with certain frequency. Therefore, EFSA has constructed worst‐case scenarios leading to upper estimates for possible integration rates of the DNA plasmid vaccine into the Atlantic salmon genome. EFSA concludes that, based on the worst‐case scenarios described here and taking into account additional factors decreasing the likelihood of integration, the actual integration rate is likely to be orders of magnitude lower than the upper estimated integration rate calculated in the context of the worst‐case scenarios. With the available evidence, the actual integration rate cannot be estimated with more precision.
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Naegeli H, Birch AN, Casacuberta J, De Schrijver A, Gralak MA, Guerche P, Jones H, Manachini B, Messéan A, Nielsen EE, Nogué F, Robaglia C, Rostoks N, Sweet J, Tebbe C, Visioli F, Wal JM, Álvarez F, Ardizzone M, Mestdagh S, Ramon M. Scientific opinion on an application for renewal of authorisation for continued marketing of maize 1507 and derived food and feed submitted under Articles 11 and 23 of Regulation (EC) No 1829/2003 by Pioneer Overseas Corporation and Dow AgroSciences LLC. EFSA J 2017; 15:e04659. [PMID: 32625255 PMCID: PMC7009909 DOI: 10.2903/j.efsa.2017.4659] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Following the submission of application EFSA‐GMO‐RX‐001 under Regulation (EC) No 1829/2003 from Pioneer Overseas Corporation and Dow Agrosciences LLC, the Panel on Genetically Modified Organisms of the European Food Safety Authority (GMO Panel) was asked to deliver a scientific risk assessment on the data submitted in the frame of a renewal of authorisation application of the insect‐resistant and herbicide‐tolerant genetically modified (GM) maize 1507. The data package received in the frame of this renewal application contained post‐market environmental monitoring reports, a systematic search and evaluation of literature, an updated bioinformatics analysis and additional documents or studies performed by or on behalf of the applicant. The GMO Panel assessed this data package for possible new hazards, modified exposure or new scientific uncertainties identified during the authorisation period and not previously assessed in the frame of the original application. Under the assumption that the DNA sequence of the event in maize 1507 considered for renewal is identical to the corrected sequence of the originally assessed event, the GMO Panel concludes that no new hazards or modified exposure and no new scientific uncertainties were identified for the application for renewal that would change the conclusions of the original risk assessment on maize 1507 (EFSA, 2005b, 2009).
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Naegeli H, Birch AN, Casacuberta J, De Schrijver A, Gralak MA, Guerche P, Jones H, Manachini B, Messéan A, Nielsen EE, Nogué F, Robaglia C, Rostoks N, Sweet J, Tebbe C, Visioli F, Wal J, Álvarez F, Ardizzone M, Fernández Dumont A, Liu Y, Neri FM, Ramon M. Scientific Opinion on an application by DOW AgroSciences LLC (EFSA‐GMO‐NL‐2010‐89) for placing on the market the genetically modified herbicide‐tolerant maize DAS‐40278‐9 for food and feed uses, import and processing under Regulation (EC) No 1829/2003. EFSA J 2016. [DOI: 10.2903/j.efsa.2016.4633] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Casacuberta JM, Devos Y, du Jardin P, Ramon M, Vaucheret H, Nogué F. Biotechnological uses of RNAi in plants: risk assessment considerations. Trends Biotechnol 2015; 33:145-7. [PMID: 25721261 DOI: 10.1016/j.tibtech.2014.12.003] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 12/04/2014] [Accepted: 12/15/2014] [Indexed: 10/23/2022]
Abstract
RNAi offers opportunities to generate new traits in genetically modified (GM) plants. Instead of expressing novel proteins, RNAi-based GM plants reduce target gene expression. Silencing of off-target genes may trigger unintended effects, and identifying these genes would facilitate risk assessment. However, using bioinformatics alone is not reliable, due to the lack of genomic data and insufficient knowledge of mechanisms governing mRNA-small (s)RNA interactions.
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Affiliation(s)
- Josep M Casacuberta
- Center for Research in Agricultural Genomics, Consejo Superior de Investigaciones Científicas-Institut de Recerca i Tecnologia Agroalimentàries-Universitat Autònoma de Barcelona-Universitat de Barcelona, Campus Universitat Autònoma de Barcelona, Bellaterra - Cerdanyola del Vallès, 08193, Barcelona, Spain
| | - Yann Devos
- European Food Safety Authority, Via Carlo Magno 1/A, 43126 Parma, Italy
| | - Patrick du Jardin
- Gembloux Agro-Bio Tech, Plant Biology Unit, University of Liège, Gembloux, Belgium
| | - Matthew Ramon
- European Food Safety Authority, Via Carlo Magno 1/A, 43126 Parma, Italy
| | - Hervé Vaucheret
- INRA, Institut Jean-Pierre Bourgin, Saclay Plant Sciences, Versailles, France; AgroParisTech, Institut Jean-Pierre Bourgin, Saclay Plant Sciences, Versailles, France
| | - Fabien Nogué
- INRA, Institut Jean-Pierre Bourgin, Saclay Plant Sciences, Versailles, France; AgroParisTech, Institut Jean-Pierre Bourgin, Saclay Plant Sciences, Versailles, France.
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Ramon M, Devos Y, Lanzoni A, Liu Y, Gomes A, Gennaro A, Waigmann E. RNAi-based GM plants: food for thought for risk assessors. Plant Biotechnol J 2014; 12:1271-3. [PMID: 25431203 DOI: 10.1111/pbi.12305] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [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: 10/10/2014] [Revised: 10/29/2014] [Accepted: 11/04/2014] [Indexed: 05/03/2023]
Abstract
RNA interference (RNAi) is an emerging technology that offers new opportunities for the generation of new traits in genetically modified (GM) plants. Potential risks associated with RNAi-based GM plants and issues specific to their risk assessment were discussed during an international scientific workshop (June 2014) organized by the European Food Safety Authority (EFSA). Selected key outcomes of the workshop are reported here.
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Ramon M. Invariance across view-points and viewing distances, and its effects on face perceptionevidence from personally familiar face processing. J Vis 2014. [DOI: 10.1167/14.10.813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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31
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Chacko A, Bedard AC, Marks DJ, Feirsen N, Uderman JZ, Chimiklis A, Rajwan E, Cornwell M, Anderson L, Zwilling A, Ramon M. A randomized clinical trial of Cogmed Working Memory Training in school-age children with ADHD: a replication in a diverse sample using a control condition. J Child Psychol Psychiatry 2014; 55:247-55. [PMID: 24117656 PMCID: PMC3944087 DOI: 10.1111/jcpp.12146] [Citation(s) in RCA: 139] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/08/2013] [Indexed: 11/30/2022]
Abstract
BACKGROUND Cogmed Working Memory Training (CWMT) has received considerable attention as a promising intervention for the treatment of Attention-Deficit/Hyperactivity Disorder (ADHD) in children. At the same time, methodological weaknesses in previous clinical trials call into question reported efficacy of CWMT. In particular, lack of equivalence in key aspects of CWMT (i.e., contingent reinforcement, time-on-task with computer training, parent-child interactions, supportive coaching) between CWMT and placebo versions of CWMT used in previous trials may account for the beneficial outcomes favoring CWMT. METHODS Eighty-five 7- to 11-year old school-age children with ADHD (66 male; 78%) were randomized to either standard CWMT (CWMT Active) or a well-controlled CWMT placebo condition (CWMT Placebo) and evaluated before and 3 weeks after treatment. Dependent measures included parent and teacher ratings of ADHD symptoms; objective measures of attention, activity level, and impulsivity; and psychometric indices of working memory and academic achievement (Clinical trial title: Combined cognitive remediation and behavioral intervention for the treatment of Attention-Deficit/Hyperactivity Disorder; http://clinicaltrials.gov/ct2/show/NCT01137318). RESULTS CWMT Active participants demonstrated significantly greater improvements in verbal and nonverbal working memory storage, but evidenced no discernible gains in working memory storage plus processing/manipulation. In addition, no treatment group differences were observed for any other outcome measures. CONCLUSIONS When a more rigorous comparison condition is utilized, CWMT demonstrates effects on certain aspects of working memory in children with ADHD; however, CWMT does not appear to foster treatment generalization to other domains of functioning. As such, CWMT should not be considered a viable treatment for children with ADHD.
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Affiliation(s)
- A Chacko
- Department of Psychology, Queens College, City University of New York, Flushing, NY, USA; Department of Psychology, The Graduate School and University Center, New York, NY, USA; Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA; New York University Langone Medical Center Child Study Center, New York, NY, USA
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32
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Ramon M, Vizioli L, Muckli L, Schyns P. Neural representations in face-selective regions are affected by task, stimulus and information content. J Vis 2013. [DOI: 10.1167/13.9.177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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33
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Ouyang X, Vizioli L, Ramon M, Caldara R. Culture shapes neural representations for faces: an eye movement and fMRI study. J Vis 2013. [DOI: 10.1167/13.9.859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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34
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Ramon M, Ruelens P, Li Y, Sheen J, Geuten K, Rolland F. The hybrid four-CBS-domain KINβγ subunit functions as the canonical γ subunit of the plant energy sensor SnRK1. Plant J 2013; 75:11-25. [PMID: 23551663 PMCID: PMC6599549 DOI: 10.1111/tpj.12192] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [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: 02/11/2013] [Revised: 03/15/2013] [Accepted: 03/26/2013] [Indexed: 05/17/2023]
Abstract
The AMPK/SNF1/SnRK1 protein kinases are a family of ancient and highly conserved eukaryotic energy sensors that function as heterotrimeric complexes. These typically comprise catalytic α subunits and regulatory β and γ subunits, the latter function as the energy-sensing modules of animal AMPK through adenosine nucleotide binding. The ability to monitor accurately and adapt to changing environmental conditions and energy supply is essential for optimal plant growth and survival, but mechanistic insight in the plant SnRK1 function is still limited. In addition to a family of γ-like proteins, plants also encode a hybrid βγ protein that combines the Four-Cystathionine β-synthase (CBS)-domain (FCD) structure in γ subunits with a glycogen-binding domain (GBD), typically found in β subunits. We used integrated functional analyses by ectopic SnRK1 complex reconstitution, yeast mutant complementation, in-depth phylogenetic reconstruction, and a seedling starvation assay to show that only the hybrid KINβγ protein that recruited the GBD around the emergence of the green chloroplast-containing plants, acts as the canonical γ subunit required for heterotrimeric complex formation. Mutagenesis and truncation analysis further show that complex interaction in plant cells and γ subunit function in yeast depend on both a highly conserved FCD and a pre-CBS domain, but not the GBD. In addition to novel insight into canonical AMPK/SNF/SnRK1 γ subunit function, regulation and evolution, we provide a new classification of plant FCD genes as a convenient and reliable tool to predict regulatory partners for the SnRK1 energy sensor and novel FCD gene functions.
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Affiliation(s)
- Matthew Ramon
- Laboratory of Molecular Plant Biology, KU Leuven Department of Biology, B-3001, Leuven, Belgium
| | - Philip Ruelens
- Laboratory of Molecular Plant Biology, KU Leuven Department of Biology, B-3001, Leuven, Belgium
| | - Yi Li
- Laboratory of Molecular Plant Biology, KU Leuven Department of Biology, B-3001, Leuven, Belgium
| | - Jen Sheen
- Department of Molecular Biology and Center for Computational and Integrative, Biology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Koen Geuten
- Laboratory of Molecular Plant Biology, KU Leuven Department of Biology, B-3001, Leuven, Belgium
| | - Filip Rolland
- Laboratory of Molecular Plant Biology, KU Leuven Department of Biology, B-3001, Leuven, Belgium
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Del Olmo E, Bisbal A, Maroto-Morales A, García-Alvarez O, Ramon M, Jimenez-Rabadan P, Martínez-Pastor F, Soler A, Garde J, Fernandez-Santos M. Fertility of cryopreserved ovine semen is determined by sperm velocity. Anim Reprod Sci 2013; 138:102-9. [DOI: 10.1016/j.anireprosci.2013.02.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Revised: 02/06/2013] [Accepted: 02/08/2013] [Indexed: 11/29/2022]
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Martínez-Jauand M, Sitges C, Rodríguez V, Picornell A, Ramon M, Buskila D, Montoya P. Pain sensitivity in fibromyalgia is associated with catechol-O-methyltransferase (COMT) gene. Eur J Pain 2012; 17:16-27. [DOI: 10.1002/j.1532-2149.2012.00153.x] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/26/2012] [Indexed: 12/30/2022]
Affiliation(s)
- M. Martínez-Jauand
- University Institute of Health Sciences Research (IUNICS); University of Balearic Islands; Palma; Spain
| | - C. Sitges
- University Institute of Health Sciences Research (IUNICS); University of Balearic Islands; Palma; Spain
| | | | | | | | - D. Buskila
- Division of Internal Medicine; Ben-Gurion University of the Negev; Israel
| | - P. Montoya
- University Institute of Health Sciences Research (IUNICS); University of Balearic Islands; Palma; Spain
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Ghillebert R, Swinnen E, Wen J, Vandesteene L, Ramon M, Norga K, Rolland F, Winderickx J. The AMPK/SNF1/SnRK1 fuel gauge and energy regulator: structure, function and regulation. FEBS J 2011; 278:3978-90. [PMID: 21883929 DOI: 10.1111/j.1742-4658.2011.08315.x] [Citation(s) in RCA: 152] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
All life forms on earth require a continuous input and monitoring of carbon and energy supplies. The AMP-activated kinase (AMPK)/sucrose non-fermenting1 (SNF1)/Snf1-related kinase1 (SnRK1) protein kinases are evolutionarily conserved metabolic sensors found in all eukaryotic organisms from simple unicellular fungi (yeast SNF1) to animals (AMPK) and plants (SnRK1). Activated by starvation and energy-depleting stress conditions, they enable energy homeostasis and survival by up-regulating energy-conserving and energy-producing catabolic processes, and by limiting energy-consuming anabolic metabolism. In addition, they control normal growth and development as well as metabolic homeostasis at the organismal level. As such, the AMPK/SNF1/SnRK1 kinases act in concert with other central signaling components to control carbohydrate uptake and metabolism, fatty acid and lipid biosynthesis and the storage of carbon energy reserves. Moreover, they have a tremendous impact on developmental processes that are triggered by environmental changes such as nutrient depletion or stress. Although intensive research by many groups has partly unveiled the factors that regulate AMPK/SNF1/SnRK1 kinase activity as well as the pathways and substrates they control, several fundamental issues still await to be clarified. In this review, we will highlight these issues and focus on the structure, function and regulation of the AMPK/SNF1/SnRK1 kinases.
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Affiliation(s)
- Ruben Ghillebert
- Department of Biology, Laboratory for Functional Biology, Katholieke Universiteit Leuven, Heverlee, Belgium
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38
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Ramon M, Liu J, Rossion B. Investigating the neural correlates of personally familiar face recognition using dynamic visual stimulation-an fMRI study. J Vis 2011. [DOI: 10.1167/11.11.645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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39
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Garcia-Rojo D, Tremps E, Ramon M, Ramirez C, Garcia-Artero N, Moreno-Artero L. VID-09.04 Endoscopic Treatment of Fibroepithelial Polyp of the Ureter. Urology 2011. [DOI: 10.1016/j.urology.2011.07.537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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40
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David M, Akerman L, Ziv M, Kadurina M, Gospodinov D, Pavlotsky F, Yankova R, Kouzeva V, Ramon M, Silverman M, Fishman P. Treatment of plaque-type psoriasis with oral CF101: data from an exploratory randomized phase 2 clinical trial. J Eur Acad Dermatol Venereol 2011; 26:361-7. [DOI: 10.1111/j.1468-3083.2011.04078.x] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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42
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Ramon M, van Belle G, Lefevre P, Rossion B. Dissociating holistic from featural face processing by means of fixation patterns. J Vis 2010. [DOI: 10.1167/10.7.629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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43
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Orban de Xivry JJ, Ramon M, Lefevre P, Rossion B. Abnormal eye fixations on personally familiar faces following acquired prosopagnosia reveal a lack of individual holistic face perception. J Vis 2010. [DOI: 10.1167/8.6.885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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45
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Ramon M, Dricot L, Goebel R, Rossion B. The right FFA is sensitive to subtle physical changes between personally familiar faces. J Vis 2010. [DOI: 10.1167/9.8.463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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46
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Ramon M, Rossion B. What's lost in prosopagnosia? An investigation of familiar face processing in a single-case of pure prosopagnosia working in a kindergarten. J Vis 2010. [DOI: 10.1167/7.9.122] [Citation(s) in RCA: 3] [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: 11/24/2022] Open
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47
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Vandesteene L, Ramon M, Le Roy K, Van Dijck P, Rolland F. A single active trehalose-6-P synthase (TPS) and a family of putative regulatory TPS-like proteins in Arabidopsis. Mol Plant 2010; 3:406-19. [PMID: 20100798 DOI: 10.1093/mp/ssp114] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Higher plants typically do not produce trehalose in large amounts, but their genome sequences reveal large families of putative trehalose metabolism enzymes. An important regulatory role in plant growth and development is also emerging for the metabolic intermediate trehalose-6-P (T6P). Here, we present an update on Arabidopsis trehalose metabolism and a resource for further detailed analyses. In addition, we provide evidence that Arabidopsis encodes a single trehalose-6-P synthase (TPS) next to a family of catalytically inactive TPS-like proteins that might fulfill specific regulatory functions in actively growing tissues.
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Affiliation(s)
- Lies Vandesteene
- Laboratory of Functional Biology, Plant Metabolic Signaling Group, Institute of Botany and Microbiology, KU Leuven, Kasteelpark Arenberg 31-bus 2438, B-3001 Heverlee, Belgium
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Bergman R, Ramon M, Wildbaum G, Avitan-Hersh E, Mayer E, Shemer A, Karin N. Psoriasis patients generate increased serum levels of autoantibodies to tumor necrosis factor-alpha and interferon-alpha. J Dermatol Sci 2009; 56:163-7. [PMID: 19800767 DOI: 10.1016/j.jdermsci.2009.08.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2009] [Revised: 08/25/2009] [Accepted: 08/29/2009] [Indexed: 11/17/2022]
Abstract
BACKGROUND It has been shown in experimental animal models that were extended to humans that during autoimmune conditions, the immune system generates beneficial autoantibody (auto Ab) response to a limited number of inflammatory mediators that drive the pathogenesis of the disease. OBJECTIVE To investigate the presence of auto Abs to cytokines and chemokines in psoriasis. METHODS Sera were obtained from patients with psoriasis (n=37), atopic dermatitis (AD) (n=18) and healthy volunteers (n=56). The titers of auto (Abs) to TNF-alpha, interferon-alpha (IFN-alpha), interleukin-17 (IL-17), and chemokines CCL2, CCL3 and CCL5 were determined using enzyme-linked immunosorbant assay. Neutralizing activities of high-titer auto Abs to TNF-alpha and IFN-alpha were determined using functional in vitro assays. RESULTS Highly significant increased titers of auto Abs to TNF-alpha and IFN-alpha were detected in patients with psoriasis compared with healthy subjects and patients with AD (mean titers more than fourfold). These auto Abs demonstrated some neutralizing activity in vitro, but their serum levels did not correlate with the intensity and duration of the disease and with phototherapy induced remissions. Significantly increased titers albeit to a lesser extent, of auto Abs to CCL3 were detected in AD. CONCLUSIONS Psoriasis patients produce markedly increased levels of auto Abs to TNF-alpha and IFN-alpha which are two of the key cytokines in this disorder. The presence of these auto Abs which possess some neutralizing activity in vitro, may be an epiphenomenon or might play a role in attempting to suppress the ongoing inflammatory process.
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Affiliation(s)
- R Bergman
- Department of Dermatology, Rambam Medical Center, Israel.
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Ramon M, De Smet I, Vandesteene L, Naudts M, Leyman B, Van Dijck P, Rolland F, Beeckman T, Thevelein JM. Extensive expression regulation and lack of heterologous enzymatic activity of the Class II trehalose metabolism proteins from Arabidopsis thaliana. Plant Cell Environ 2009; 32:1015-32. [PMID: 19344332 DOI: 10.1111/j.1365-3040.2009.01985.x] [Citation(s) in RCA: 98] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Trehalose metabolism has profound effects on plant growth and metabolism, but the mechanisms involved are unclear. In Arabidopsis, 21 putative trehalose biosynthesis genes are classified in three subfamilies based on their similarity with yeast TPS1 (encoding a trehalose-6-phosphate synthase, TPS) or TPS2 (encoding a trehalose-6-phosphate phosphatase, TPP). Although TPS1 (Class I) and TPPA and TPPB (Class III) proteins have established TPS and TPP activity, respectively, the function of the Class II proteins (AtTPS5-AtTPS11) remains elusive. A complete set of promoter-beta-glucurinidase/green fluorescent protein reporters demonstrates their remarkably differential tissue-specific expression and responsiveness to carbon availability and hormones. Heterologous expression in yeast furthermore suggests that none of the encoded enzymes displays significant TPS or TPP activity, consistent with a regulatory rather than metabolic function for this remarkable class of proteins.
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Affiliation(s)
- Matthew Ramon
- Department of Molecular Microbiology, VIB, Leuven, Belgium
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50
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Dies J, Dapena M, Ramon M, López R, García J, Rivas JC, Calvo A, Reyes S. AINA Safety Code, A Review of Loss of Plasma Control Transients in ITER: Sudden Increase in Fuelling Rate, Sudden Increase of Auxiliary Heating. Fusion Science and Technology 2009. [DOI: 10.13182/fst09-a8871] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- J. Dies
- Fusion Energy Engineering Laboratory, Departament de Fisica i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Avda. Diagonal 647, 08029 Barcelona, Spain
| | - M. Dapena
- Fusion Energy Engineering Laboratory, Departament de Fisica i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Avda. Diagonal 647, 08029 Barcelona, Spain
| | - M. Ramon
- Fusion Energy Engineering Laboratory, Departament de Fisica i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Avda. Diagonal 647, 08029 Barcelona, Spain
| | - R. López
- Fusion Energy Engineering Laboratory, Departament de Fisica i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Avda. Diagonal 647, 08029 Barcelona, Spain
| | - J. García
- Fusion Energy Engineering Laboratory, Departament de Fisica i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Avda. Diagonal 647, 08029 Barcelona, Spain
| | - J. C. Rivas
- Fusion Energy Engineering Laboratory, Departament de Fisica i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Avda. Diagonal 647, 08029 Barcelona, Spain
| | - A. Calvo
- Fusion Energy Engineering Laboratory, Departament de Fisica i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Avda. Diagonal 647, 08029 Barcelona, Spain
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