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Martin M, Abe E, Alvarez JC. Intoxication aiguë au sulfate de cuivre après administration par voie rectale. TOXICOLOGIE ANALYTIQUE ET CLINIQUE 2020. [DOI: 10.1016/j.toxac.2020.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Tetzlaff W, Bottero A, Neder D, Martin M, Botta E, Ferraro F, Chiappe EL, Ballerini G, Brites F, Boero L. Antioxidant paraoxonase 1 activity in children with celiac disease. Impact of gluten free diet. Atherosclerosis 2020. [DOI: 10.1016/j.atherosclerosis.2020.10.473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Liberatore J, Dufrénoy M, Caballero I, Martin M, Odile S. Algoneurodystrophie paranéoplasique : description d’un cas. Des oedèmes qui tiennent tête. Rev Med Interne 2020. [DOI: 10.1016/j.revmed.2020.10.361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Fabresse N, Knapp A, Dugues P, Martin M, Larabi IA, Etting I, Mayer C, Alvarez JC. Recherche d’un biomarqueur spécifique d’une exposition aux graines de pavot par spectrométrie de masse haute résolution. TOXICOLOGIE ANALYTIQUE ET CLINIQUE 2020. [DOI: 10.1016/j.toxac.2020.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Litton JK, Hurvitz SA, Mina LA, Rugo HS, Lee KH, Gonçalves A, Diab S, Woodward N, Goodwin A, Yerushalmi R, Roché H, Im YH, Eiermann W, Quek RGW, Usari T, Lanzalone S, Czibere A, Blum JL, Martin M, Ettl J. Talazoparib versus chemotherapy in patients with germline BRCA1/2-mutated HER2-negative advanced breast cancer: final overall survival results from the EMBRACA trial. Ann Oncol 2020; 31:1526-1535. [PMID: 32828825 PMCID: PMC10649377 DOI: 10.1016/j.annonc.2020.08.2098] [Citation(s) in RCA: 184] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 08/05/2020] [Accepted: 08/10/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND In EMBRACA, talazoparib prolonged progression-free survival versus chemotherapy (hazard ratio [HR] 0.542 [95% confidence interval (CI) 0.413-0.711]; P < 0.0001) and improved patient-reported outcomes (PRO) in germline BRCA1/2 (gBRCA1/2)-mutated advanced breast cancer (ABC). We report final overall survival (OS). PATIENTS AND METHODS This randomized phase III trial enrolled patients with gBRCA1/2-mutated HER2-negative ABC. Patients received talazoparib or physician's choice of chemotherapy. OS was analyzed using stratified HR and log-rank test and prespecified rank-preserving structural failure time model to account for subsequent treatments. RESULTS A total of 431 patients were entered in a randomized study (287 talazoparib/144 chemotherapy) with 412 patients treated (286 talazoparib/126 chemotherapy). By 30 September 2019, 216 deaths (75.3%) occurred for talazoparib and 108 (75.0%) chemotherapy; median follow-up was 44.9 and 36.8 months, respectively. HR for OS with talazoparib versus chemotherapy was 0.848 (95% CI 0.670-1.073; P = 0.17); median (95% CI) 19.3 months (16.6-22.5 months) versus 19.5 months (17.4-22.4 months). Kaplan-Meier survival percentages (95% CI) for talazoparib versus chemotherapy: month 12, 71% (66% to 76%)/74% (66% to 81%); month 24, 42% (36% to 47%)/38% (30% to 47%); month 36, 27% (22% to 33%)/21% (14% to 29%). Most patients received subsequent treatments: for talazoparib and chemotherapy, 46.3%/41.7% received platinum and 4.5%/32.6% received a poly(ADP-ribose) polymerase (PARP) inhibitor, respectively. Adjusting for subsequent PARP and/or platinum use, HR for OS was 0.756 (95% bootstrap CI 0.503-1.029). Grade 3-4 adverse events occurred in 69.6% (talazoparib) and 64.3% (chemotherapy) patients, consistent with previous reports. Extended follow-up showed significant overall improvement and delay in time to definitive clinically meaningful deterioration in global health status/quality of life and breast symptoms favoring talazoparib versus chemotherapy (P < 0.01 for all), consistent with initial analyses. CONCLUSIONS In gBRCA1/2-mutated HER2-negative ABC, talazoparib did not significantly improve OS over chemotherapy; subsequent treatments may have impacted analysis. Safety was consistent with previous observations. PRO continued to favor talazoparib.
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Balint R, Celi L, Barberis E, Prati M, Martin M. Organic phosphorus affects the retention of arsenite and arsenate by goethite. JOURNAL OF ENVIRONMENTAL QUALITY 2020; 49:1655-1666. [PMID: 33135229 DOI: 10.1002/jeq2.20145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 08/08/2020] [Accepted: 08/17/2020] [Indexed: 06/11/2023]
Abstract
The hazardous effects of arsenic are closely linked to its speciation and interaction with different soil minerals, which influence both As mobility and bioavailability. Adsorption onto iron (oxyhydr)oxides is one of the main processes controlling the partitioning of arsenite [As(III)] and arsenate [As(V)] between aqueous and solid phases. Arsenic retention can be affected by changes in soil pH and the presence of competing anions, like phosphate. Although competition with inorganic phosphorus (P) for sorption sites on mineral surfaces has been widely studied, little is known about the interactions with organic P (Po ) compounds, in particular inositol phosphates, even though they may represent a large fraction of total soil P. We quantified the effects of myo-inositol hexaphosphate (InsP6) on the adsorption and retention of As(III) and As(V) on goethite as influenced by pH, the order of anion addition, and residence time. The efficiency of InsP6 in displacing adsorbed As(III) decreased with increasing pH values and interaction time, which may be attributed to the increase in bonding strength of the As(III) complexes on the surface of goethite. Adsorption and retention of As(V) by goethite generally decreased with increasing pH, particularly in the presence of InsP6 due to the similar pKa values and the competition for the same binding sites. The addition of InsP6 before, together with, or after adsorption of As(III) and As(V) strongly reduced the amounts of sorbed As, suggesting that the addition of Po -rich matrices to As-contaminated soils may strongly enhance As mobility.
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Johnston S, Harbeck N, Hegg R, Toi M, Martin M, Shao Z, Campone M, Hamilton E, Sohn J, Guarneri V, Cortes J, Neven P, Boyle F, Smith I, Frenzel M, Headley D, Wei R, Cox J, O'Shaughnessy J, Rastogi P. 2MO Abemaciclib in high risk early breast cancer. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Rozado Castano J, Garcia Iglesias D, Junco A, Soroa M, Barja N, Alvarez R, Adeba A, Vigil-Escalera M, Capin E, Fidalgo A, Martin M, Calvo D, Moris C, Delgado E, De La Hera J. Newer glucose-lowering drugs at discharge from cardiology hospitalization department: safetyness, effectiveness and mortality reduction. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
In recent years, the paradigm of glycemic treatment has changed due to the cardiovascular impact of newer glucose-lowering drugs (GLD) (sodium-glucosa cotransporter 2 inhibitor (SGLT2i) and GLP-1 receptor agonist (GLP1a)). The cardiological patient with type 2 diabetes (2DM) is a very high cardiovascular risk patient in which the benefit of these therapies is greater. However, to date, different studies have demonstrated the efficacy and safety of newer GLD only in the outpatient setting. So its impact when they are initiated to discharge after a cardiovascular event is unknown.
Objective
To evaluate the efficacy and safety of the onset of these newer GLD in 2DM patients at discharge from cardiology hospitalization. And to compare mortality and readmissions among patients treated with or without newer GLD.
Methods
Prospective, it includes patients admitted to cardiology at a 3er level hospital between April/2018 and February/2019 with a history of 2DM or diagnosed with 2DM during hospitalization. They were followed at 6, 12 and 18 months. The evolution of anthropometric parameters, glycemic profile, renal function and blood pressure were analyzed; renal events, readmissions, mortality and combined clinical outcome (mortality or readmission) were collected during follow-up. Quantitative variables are expressed in mean/SD and categorical variables in number of patients (%). For the comparison between the parameters at discharge and thefollow-up, a T student was used for paired data. Survival analysis by K-M was performed crude and adjusted data by propensity score matching (PSM).
Results
Population: Diagnoses at discharge: Acute coronary syndrome 66 (64%), Heart failure 22 (21%), Arrhythmias 16 (15%). 104 diabetic patients, 39 of them (38%) were treated on discharge with newer GLD. 35 Patients with SGLT2i without GLP1a, 3 patients with SGLT2i and GLP1a and 1 patient with GLP1a without SGLT2i. The mean follow-up was 16±2 months. Regarding the subgroup of patients with newer GLD: mean age was 65±21 y, male 26 (67%). A significant decrease was observed in glycated hemoglobin (7.6 to 6.9%, p=0.04) and weight (81 to 78 kg, p<0.01) without significant changes in blood pressure or glomerular filtration rate (GFR). Only 1 patient presented deterioration of their GFR that forced the transient suspension of newer GLD.
10 deaths were registered in the classical GLD group (15%) and none in the newer GLD group (HR 0.81 [0.71–0.92] p=0.002, Figure 1A, HR adjusted by PSM 0.9 [0.82–0.99], p=0.04), Figure 1B. The combined clinical outcome appeared in 38 patients (58%) in the the classical GLD group and in 9 (23%) in the newer GLD group (HR 0.70 [0.58–0.85] p<0.001, Figure 1C, PSM adjusted HR 0.75 [0.61–0.92], p=0.001), Figure 1D.
Conclusion
The use of newer GLD at discharge from cardiology hospitalization reduce mortality and readmissions. Newer GLD were safe and showed significant reduction in weigth and glycated hemoglobin.
Figure 1. Kaplan-Meier survival analysis crude and adjusted
Funding Acknowledgement
Type of funding source: None
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Makepeace L, Wakefield D, Hubler A, Carnell M, Sharma A, Jiang B, Dove A, Garner W, Edmonston D, Ozdenerol E, Hanson R, Martin M, Pisu M, Schwartz D. Geospatial-socioeconomic Analysis of Patient Transportation-related Access Disparities to Radiation Treatment. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Wakefield D, Makepeace L, Hubler A, Carnell M, Sharma A, Jiang B, Dove A, Garner W, Edmonston D, Ozdenerol E, Hanson R, Martin M, Pisu M, Schwartz D. Identifying Populations and Neighborhoods at High Risk for Hospital Admission-Driven Radiotherapy Interruption Using Geospatial Analytics. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Martin M, Pizzoferrato A, Mourgues J, Renouf S, Fauvet R, Villot A. Satisfaction des patientes et efficacité du pessaire en cas de prolapsus génital. Prog Urol 2020. [DOI: 10.1016/j.purol.2020.07.109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Martin M, Avril S, Morin C. A micromechanical framework of arterial tissue growth in the context of medial calcification. Comput Methods Biomech Biomed Engin 2020. [DOI: 10.1080/10255842.2020.1813423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Geia L, Baird K, Bail K, Barclay L, Bennett J, Best O, Birks M, Blackley L, Blackman R, Bonner A, Bryant AO R, Buzzacott C, Campbell S, Catling C, Chamberlain C, Cox L, Cross W, Cruickshank M, Cummins A, Dahlen H, Daly J, Darbyshire P, Davidson P, Denney-Wilson E, De Souza R, Doyle K, Drummond A, Duff J, Duffield C, Dunning T, East L, Elliott D, Elmir R, Fergie OAM D, Ferguson C, Fernandez R, Flower AM D, Foureur M, Fowler C, Fry M, Gorman E, Grant J, Gray J, Halcomb E, Hart B, Hartz D, Hazelton M, Heaton L, Hickman L, Homer AO CSE, Hungerford C, Hutton A, Jackson AO D, Johnson A, Kelly MA, Kitson A, Knight S, Levett-Jones T, Lindsay D, Lovett R, Luck L, Molloy L, Manias E, Mannix J, Marriott AMR, Martin M, Massey D, McCloughen A, McGough S, McGrath L, Mills J, Mitchell BG, Mohamed J, Montayre J, Moroney T, Moyle W, Moxham L, Northam OAM H, Nowlan S, O'Brien AP, Ogunsiji O, Paterson C, Pennington K, Peters K, Phillips J, Power T, Procter N, Ramjan L, Ramsay N, Rasmussen B, Rihari-Thomas J, Rind B, Robinson M, Roche M, Sainsbury K, Salamonson Y, Sherwood J, Shields L, Sim J, Skinner I, Smallwood G, Smallwood R, Stewart L, Taylor S, Usher AM K, Virdun C, Wannell J, Ward R, West C, West R, Wilkes L, Williams R, Wilson R, Wynaden D, Wynne R. A unified call to action from Australian nursing and midwifery leaders: ensuring that Black lives matter. Contemp Nurse 2020; 56:297-308. [DOI: 10.1080/10376178.2020.1809107] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Johnston S, Harbeck N, Hegg R, Toi M, Martin M, Shao Z, Campone M, Hamilton E, Sohn J, Guarneri V, Cortés J, Neven P, Boyle F, Smith I, Headley D, Wei R, Frenzel M, Cox J, O'Shaughnessy J, Rastogi P. LBA5_PR Abemaciclib in high risk early breast cancer. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.2238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Kaufman P, Martin M, Mayer I, Vahdat L, Simon SP, Schmid P, McArthur H, Dent R, Rugo H, Barrios C, Bobirca A, Ringeisen F, Cortés J. 359TiP International phase III trial: Balixafortide (a CXCR4 antagonist) + eribulin versus eribulin alone in patients with HER2-negative, locally recurrent or metastatic breast cancer (FORTRESS). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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De Laurentiis M, Merino LDLC, Hart L, Bardia A, Im SA, Sohn J, Neven P, Martin M, Ji Y, Yang S, Hu H, Lteif A, Tripathy D. 331P Impact of ribociclib (RIB) dose reduction on overall survival (OS) in patients (pts) with HR+/HER2− advanced breast cancer (ABC) in MONALEESA (ML) -3 and -7. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Martin M, Chartier M, Germain J, Le Neindre K, Jan V, Ertzscheid M, Day F, Angibaud M, Bourgeois J, Piednoir E. Analyse des demandes d’appui en matière de prévention et contrôle de l’infection d’un CPias pendant la crise COVID-19. Med Mal Infect 2020. [PMCID: PMC7442130 DOI: 10.1016/j.medmal.2020.06.125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Introduction Pendant la crise sanitaire liée au SARS-CoV-2, le Centre d’appui pour la Prévention des infections associées aux soins (CPias) a fortement été sollicité par les différents secteurs de l’offre de soins. Un outil informatique commun a été créé en 2019 pour tracer les demandes d’appui du CPias. L’objectif est d’analyser les thèmes abordés, les demandeurs et les réponses émises. Matériels et méthodes La saisie de ces données se fait à partir d’un formulaire en ligne. L’analyse des données est réalisée avec le logiciel statistique SAS®. Après un contrôle de la qualité des données, une analyse descriptive des conseils donnés a été réalisée. Ainsi, les variables recensées sont : la date, la fonction des appelants, le statut et le type de leurs établissements (sanitaire, ESMS, secteur libéral…) et les thèmes des demandes. Une fois la base de données exportée et les demandes étiquetées « COVID-19 » filtrées, une seconde analyse qualitative des sous-thèmes a été faite. Résultats Entre le 1er février et le 31 mai 2020, le CPias a répondu à 886 sollicitations sur le thème du COVID-19 contre 640 sur toute l’année 2019 (tous thèmes confondus), avec un pic visible autour de la semaine 12. Ainsi, 64 % (466) des demandes émanent d’établissements médicosociaux, 26 % (189) d’établissements sanitaires, 7 % (48) de tutelles et 3 % (22) de la médecine ambulatoire. Quarante-trois pour cent (363) de ces demandes sont faites par des professionnels de santé (à parts égales entre professionnels médicaux et paramédicaux), 26 % (217) par des personnels non soignants (dont 80 % (174) de directeurs de structures médicosociales), 21 % (175) par des hygiénistes (praticiens et infirmiers) et 10 % (90) d’autres professionnels. Les thèmes les plus souvent abordés concernent pour 30 % (264) les équipements de protection individuelle (conseils pour leur bonne utilisation, gestion de la pénurie), pour 23 % (206) l’environnement (entretien des locaux, gestion du risque environnemental) et pour 21 % (185) la conduite à tenir face à des patients/résidents suspects, positifs ou revenant d’hospitalisation. Viennent ensuite des questions sur la conduite à tenir pour les professionnels soit 14 % (123) (suspects/contact, ceux travaillant en ville ou à domicile) et 14 % (120) sur la maladie elle-même (contagiosité, symptômes, prélèvement, unité dédiée aux patients COVID ou suspects). Parfois ces questions ont été relayées aux infectiologues selon le niveau d’expertise requis. Enfin, 11 % (98) des demandes sont d’ordre organisationnel autour des flux internes et de l’organisation des consultations. Conclusion Le CPias a été très investi dans ses missions régionales de prévention et contrôle de l’infection pendant cette crise sanitaire. Nous en tirons que de nombreux acteurs en santé avaient besoin d’une adaptation ou d’une interprétation pratique des doctrines nationales et/ou d’être confortés dans les conduites à tenir. L’analyse montre également la diversité des appelants sortants du cadre habituel de nos interlocuteurs témoignant de l’importance de l’épidémie.
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Jerusalem G, Onesti C, Generali D, Harbeck N, Wildiers H, Curigliano G, Campone M, Tjan-Heijnen V, Martin M, Cristofanilli M, Pusztai L, Bartsch R, Peeters M, Berchem G, Tagliamento M, Cortés J, Ruhstaller T, Ciruelos E, Rottey S, Rugo H. LBA76_PR Expected medium and long term impact of the COVID-19 outbreak in oncology. Ann Oncol 2020. [PMCID: PMC7506324 DOI: 10.1016/j.annonc.2020.08.2317] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Bruno DCF, Donatti A, Martin M, Almeida VS, Geraldis JC, Oliveira FS, Dogini DB, Lopes-Cendes I. Circulating nucleic acids in the plasma and serum as potential biomarkers in neurological disorders. ACTA ACUST UNITED AC 2020; 53:e9881. [PMID: 32813850 PMCID: PMC7446710 DOI: 10.1590/1414-431x20209881] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 06/12/2020] [Indexed: 12/12/2022]
Abstract
Neurological diseases are responsible for approximately 6.8 million deaths every year. They affect up to 1 billion people worldwide and cause significant disability and reduced quality of life. In most neurological disorders, the diagnosis can be challenging; it frequently requires long-term investigation. Thus, the discovery of better diagnostic methods to help in the accurate and fast diagnosis of neurological disorders is crucial. Circulating nucleic acids (CNAs) are defined as any type of DNA or RNA that is present in body biofluids. They can be found within extracellular vesicles or as cell-free DNA and RNA. Currently, CNAs are being explored as potential biomarkers for diseases because they can be obtained using non-invasive methods and may reflect unique characteristics of the biological processes involved in several diseases. CNAs can be especially useful as biomarkers for conditions that involve organs or structures that are difficult to assess, such as the central nervous system. This review presents a critical assessment of the most current literature about the use of plasma and serum CNAs as biomarkers for several aspects of neurological disorders: defining a diagnosis, establishing a prognosis, and monitoring the disease progression and response to therapy. We explored the biological origin, types, and general mechanisms involved in the generation of CNAs in physiological and pathological processes, with specific attention to neurological disorders. In addition, we present some of the future applications of CNAs as non-invasive biomarkers for these diseases.
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Vernillo G, Temesi J, Martin M, Krüger RL, Millet GY. Spinal contribution to neuromuscular recovery differs between elbow-flexor and knee-extensor muscles after a maximal sustained fatiguing task. J Neurophysiol 2020; 124:763-773. [PMID: 32755359 DOI: 10.1152/jn.00273.2020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Data from studies of elbow-flexor (EF) or knee-extensor (KE) muscles suggest that a fatigue-related decrease in motoneuron excitability only occurs in EF. It is unknown how motoneuron excitability changes after sustained fatiguing maximal voluntary isometric contractions (MVICs) in EF and KE in the same participants. In two sessions, eight healthy men performed a 2-min MVIC of EF or KE to induce fatigue with brief MVICs before and six times after the 2-min MVIC. Electromyographic responses elicited by corticospinal tract stimulation at the transmastoid [cervicomedullary motor-evoked potential (CMEP)] or thoracic [thoracic motor-evoked potential (TMEP)] level were recorded from EF and KE, respectively. To account for muscle excitability, CMEPs and TMEPs were normalized to maximal M-wave (Mmax) elicited by peripheral nerve stimulation during each brief MVIC. Immediately after the 2-min MVIC, biceps brachii and brachioradialis CMEP/Mmax were 88% (SD 11%) (P = 0.026) and 87% (SD 12%) (P = 0.029) of pre-MVIC (PRE) values, respectively, and remained lower than PRE after 5 s of recovery [91% (SD 8%), P = 0.036 and 87% (SD 13%), P = 0.046, respectively]. No subsequent time points differed from PRE (all P ≥ 0.253). TMEP/Mmax for rectus femoris and vastus lateralis were not different from PRE at any time during the recovery period (all P > 0.050). A different recovery pattern in motoneuron excitability occurred in EF as it recovered by 60 s whereas KE motoneurons were unaffected by the fatiguing task. The present findings may contribute to better understand muscle-specific neurophysiological differences in spinal excitability.NEW & NOTEWORTHY By comparing the changes in motoneuron excitability in elbow-flexor and knee-extensor muscles after sustained fatiguing maximal voluntary contractions, this study shows that motoneuron recovery behavior depends on the muscle performing the exercise. A different recovery pattern in motoneuron excitability occurs in elbow flexors as it recovered by 60 s whereas knee extensors were unaffected by fatigue. This finding can help to increase understanding of the effect of a fatigue and subsequent recovery on neural processes.
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MacDonald D, Martin M, Nguyen C. Malignant lesions in the anterior maxilla. Clin Radiol 2020; 75:497-506. [DOI: 10.1016/j.crad.2019.09.133] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 09/23/2019] [Indexed: 12/16/2022]
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Vignot S, Blaise T, Martin M. Nouvelles modalités de prescription des ATU nominatives : un dispositif à la mesure des besoins en infectiologie. Med Mal Infect 2020; 50:386-387. [DOI: 10.1016/j.medmal.2019.10.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 08/06/2019] [Accepted: 10/18/2019] [Indexed: 10/25/2022]
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Maitre I, Roger A, Lesourd B, Sulmont-Rossé C, Corbière T, Martin M, Levasseur M, Van Wymelbeke V. À domicile : comment accompagner les aidants pour mieux nourrir les aidés ? NUTR CLIN METAB 2020. [DOI: 10.1016/j.nupar.2020.02.359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Tintó-Moliner A, Martin M. Quantitative weight of evidence method for combining predictions of quantitative structure-activity relationship models. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2020; 31:261-279. [PMID: 32065534 DOI: 10.1080/1062936x.2020.1725116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 01/30/2020] [Indexed: 06/10/2023]
Abstract
A method for combining statistical-based QSAR predictions of two or more binary classification models is presented. It was assumed that all models were independent. This facilitated the combination of positive and negative predictions using a quantitative weight of evidence (qWoE) procedure based on Bayesian statistics and the additivity of the logarithms of the likelihood ratios. Previous studies combined more than one prediction but used arbitrary strengths for positive and negative predictions. In our approach, the combined models were validated by determining the sensitivity and specificity values, which are performance metrics that are a point of departure for obtaining values that measure the weight of evidence of positive and negative predictions. The developed method was experimentally applied in the prediction of Ames mutagenicity. The method achieved a similar accuracy to that of the experimental Ames test for this endpoint when the overall prediction was determined using a combination of the individual predictions of more than one model. Calculating the qWoE value would reduce the requirement for expert knowledge and decrease the subjectivity of the prediction. This method could be applied to other endpoints such as developmental toxicity and skin sensitisation with binary classification models.
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Peters LJ, Martin M, Forgas L, Glass R. The Oklahoma Canine Oral Health Index. J Vet Dent 2020. [DOI: 10.1177/089875648800500307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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