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Abou Khalil G, Doré-Mazars K, Legrand A. Stand up to better pay attention, sit down to better subtract: a new perspective on the advantage of cognitive-motor interactions. Psychol Res 2024; 88:735-752. [PMID: 37904007 DOI: 10.1007/s00426-023-01890-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 10/02/2023] [Indexed: 11/01/2023]
Abstract
The Stroop task and subtraction rely on the different cognitive processes and cerebral regions, but both these cognitive functions interact with posture. The study of cognitive-motor interactions falls under the concept of sharing resources, implying that resources for processing are limited. Researchers try to understand this interaction by constructing dual task (DT) paradigms. None have investigated the Stroop and subtraction tasks in three inherently simple postures in two groups of young adults. This study aimed to test whether a given posture benefits a given cognitive function when cognitive and postural tasks are not overly demanding and are underpinned by common cerebral structures. This study presents the results of 60 healthy young adults performing a subtraction task in three postures (sitting, standing, and walking) and 57 healthy young adults performing the Stroop task in the same three postures. Our results showed that performance at the Stroop task, in terms of number of correct answers and interference, are better while standing or even walking compared to sitting while subtraction is better sitting compared to standing and walking. Moreover, static postural parameters did not vary when in DT compared to single task. This means that there was no additional cost on posture when achieving the cognitive activity simultaneously. The absence of impact of the DT on postural parameters in static postures and the changes in the gait pace when walking suggest that cognitive tasks can be achieved in various postures, without being too costly on posture.
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Affiliation(s)
- G Abou Khalil
- Université Paris Cité, Vision Action Cognition, 92100, Boulogne-Billancourt, France.
| | - K Doré-Mazars
- Université Paris Cité, Vision Action Cognition, 92100, Boulogne-Billancourt, France
| | - A Legrand
- Université Paris Cité, Vision Action Cognition, 92100, Boulogne-Billancourt, France
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2
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Legrand A, Autrusseau F, Bandiaky ON, Idiri K, Le Goff B, Amador G, Volteau C, Maugars Y, Soueidan A. Promising diagnostic performance of CBCT-based TOMOSTEOp algorithm in osteoporosis: toward a complementary populational screening tool managed by dentists? Osteoporos Int 2023; 34:1137-1138. [PMID: 37000207 DOI: 10.1007/s00198-023-06724-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 03/13/2023] [Indexed: 04/01/2023]
Affiliation(s)
- Arnaud Legrand
- Nantes Université, CHU Nantes, Direction de La Recherche Et de L'Innovation, 44000, Nantes, France
| | - Florent Autrusseau
- Nantes Université, Institut du Thorax, INSERM UMR 1087, Nantes, France
- Nantes Université, LTeN, UMR 6607, Ecole Polytechnique de L'Université de Nantes, Nantes, France
| | - Octave Nadile Bandiaky
- Nantes Université, Oniris, Univ Angers, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, 44000, Nantes, France
| | - Katia Idiri
- Nantes Université, Oniris, Univ Angers, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, 44000, Nantes, France
| | - Benoit Le Goff
- INSERM UMR1238, Bone Sarcoma and Remodelling of Calcified Tissues, Nantes University, Nantes, France
- Rheumatology Department, Nantes University Hospital, Nantes, France
| | - Gilles Amador
- Nantes Université, Oniris, Univ Angers, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, 44000, Nantes, France
| | - Christelle Volteau
- Nantes Université, CHU Nantes, Direction de La Recherche Et de L'Innovation, 44000, Nantes, France
| | - Yves Maugars
- Nantes Université, Oniris, Univ Angers, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, 44000, Nantes, France
| | - Assem Soueidan
- Nantes Université, Oniris, Univ Angers, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, 44000, Nantes, France.
- Faculty of Dentistry, 1 Place Alexis Ricordeau, 44042, Nantes, France.
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Adham S, Legrand A, Bruno RM, Billon C, Dalens V, Boutouyrie P, Mazzella JM, Gueguen S, Frank M, Mirault T, Jeunemaitre X. Assessment of arterial damage in vascular Ehlers-Danlos syndrome: a retrospective multicentric cohort. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Vascular Ehlers-Danlos syndrome (vEDS) is a rare inherited connective tissue disorder due to pathogenic variants in the COL3A1 gene, leading to medium-size artery (MSA) dissection, aneurysm, and rupture with a poor prognosis. Conversely, aortic lesions are rarer and less investigated.
Purpose
To describe the association between the distribution of MSA and aortic lesions and the type of COL3A1 variants in a multicentric cohort of vEDS patients.
Methods
Analysis of the 330 vEDS adult patients from the French RaDiCO SEDVASC registry. At the time of the study, 87% were alive, 60.3% were index cases and 60.0% females. Median age at molecular diagnosis was 36 years (IQR 24.3–46.8). COL3A1 variants were identified using NGS and/or Sanger sequencing and classified according to their functional consequences: 80.6% dominant-negative (DN) and 19.4% leading to haplo-insufficiency (HI). Computed tomography angiography (CTA) was systematically performed during the initial work-up of patients. Carotid mechanics was also assessed by echotracking in a subgroup of 133 patients.
Results
Arterial lesion history was reported in 82.4% of the patients (N=272), with 227/272 patients (83.5%) having MSA lesions alone, 9 (3.3%) aortic lesions alone and 36 (13.2%) both. DN variant was associated with higher prevalence of arterial lesions than HI variant (P 0.044), especially on supra-aortic trunks and renal arteries (P 0.018 and P 0.0003 respectively). Importantly, the higher prevalence of aortic lesions observed in HI patients with arterial lesions versus DN patients (P 0.027) was not significantly different when adjusted for age (P 0.559). Carotid Young's modulus was lower in DN than HI patients (P 0.014), in association with the higher incidence of MSA lesions in this genotype group.
Conclusion
The prevalence of aortic lesions is not influenced by the COL3A1 genotype when adjusted for age. vEDS patients with DN variants have a higher frequency of MSA lesions especially in supra-aortic trunks which is associated with a lower carotid stiffness, suggesting a need for an optimal care for this subgroup of patients.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): French National Research Agency under the specific programme “Investments for the Future”, cohort grant-agreement ANR-l0-COHO-03-01
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Affiliation(s)
- S Adham
- CHU Montpellier, Hôpital Saint Eloi, Vascular Medicine , Montpellier , France
| | - A Legrand
- Université Paris Cité, hôpital européen Georges-Pompidou APHP, INSERM U970, National reference center for Rare Vascular Diseases , Paris , France
| | - R M Bruno
- Paris Cardiovascular Research Center (PARCC), AP-HP, Unité de Pharmacologie, Hôpital Européen Georges Pompidou , Paris , France
| | - C Billon
- Université Paris Cité, hôpital européen Georges-Pompidou APHP, INSERM U970, National reference center for Rare Vascular Diseases , Paris , France
| | - V Dalens
- Centre Hospitalier Universitaire de Québec-Université Laval, Hôpital Saint-François d'Assise, Division de Médecine Interne, Département de Médecine , Quebec , Canada
| | - P Boutouyrie
- Paris Cardiovascular Research Center (PARCC), AP-HP, Unité de Pharmacologie, Hôpital Européen Georges Pompidou , Paris , France
| | - J M Mazzella
- Université Paris Cité, hôpital européen Georges-Pompidou APHP, INSERM U970, National reference center for Rare Vascular Diseases , Paris , France
| | - S Gueguen
- Sorbonne Université, Inserm, RaDiCo, French National Program on “Rare Disease Cohorts”, Hôpital Armand Trousseau , Paris , France
| | - M Frank
- Université Paris Cité, hôpital européen Georges-Pompidou APHP, INSERM U970, National reference center for Rare Vascular Diseases , Paris , France
| | - T Mirault
- Université Paris Cité, hôpital européen Georges-Pompidou APHP, INSERM U970, National reference center for Rare Vascular Diseases , Paris , France
| | - X Jeunemaitre
- Université Paris Cité, hôpital européen Georges-Pompidou APHP, INSERM U970, National reference center for Rare Vascular Diseases , Paris , France
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Brau F, Martin S, Le Bastard Q, Ricaud P, Legrand A, Montassier E, Le Conte P. Impact of emergency physician-performed ultrasound for the evaluation of patients with acute abdominal pain, prospective randomized dual Centre study: study protocol for a diagnostic trial. Trials 2022; 23:804. [PMID: 36153600 PMCID: PMC9509618 DOI: 10.1186/s13063-022-06755-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 09/15/2022] [Indexed: 11/23/2022] Open
Abstract
Background Abdominal pain is frequent in patients consulting in emergency departments. The aim of this study is to determine the diagnosis efficacy of point-of-care ultrasound (POCUS) in patients consulting in the ED for acute abdominal pain by comparing the rate of exact diagnostic between the two arms (with or without POCUS), according to the index diagnostic established by an adjudication committee. Methods It is a randomized, controlled, open and interventional study in two emergency departments. The included patients will be adults admitted for acute abdominal pain. Exclusion criteria will be a documented end-of-life, an immediate need of life-support therapy and pregnant or breast-feeding women. Patients will be randomized in intervention (POCUS) or control groups. POCUS will only be performed by trained physicians and will be added to the diagnosis procedure in the intervention group. In the control group, the diagnosis will be established after clinical examination and reception of biological analysis results. In the interventional group, the diagnosis will be established after a clinical exam, biological analysis reception and POCUS. An adjudication committee will review all data from case report forms and will determine the index diagnosis which will be used for the analysis. The primary endpoint will be the comparison of the rate of exact diagnostic between the two arms according to the adjudication committee diagnostic. Secondary endpoints will be the comparison between the two groups for diagnostic delay, duration of ED stay, diagnostic performances for non-specific abdominal pain and hospitalization rate. The primary endpoint will be compared between the two groups using a mixed model taking into account the recruiting centre. Delays will be compared by a mixed linear generalized model. Diagnostic performances will be estimated with their 95% confidence intervals. For a correct diagnostic rate of 57% in the control group and 74% in the intervention group with a 0.05 alpha risk and a 80% power, 244 patients will be required. Discussion POCUS diagnostic abilities have been mainly demonstrated in monocentric studies but the level of evidence of its diagnostic efficacy remains controversial in particular in Europe. The aim of this study is to address this question with a rigorous methodology. Trial registration ClinicalTrials.gov NCT04912206. Registered on June 3, 2021.
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Lakhal K, Rozec B, Souab F, Senage T, Leroy M, Legrand A, Boissier E, Bigot-Corbel E. Plasma haemolysis index and interleukine-6 for the early prediction of cardiac surgery-associated acute kidney injury. A proof-of-concept study. Perfusion 2022; 38:807-817. [PMID: 35430909 DOI: 10.1177/02676591221083791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Introduction Haemolysis and inflammation contribute to cardiac surgery-associated acute kidney injury (CS-AKI). We aimed to assess the performance of plasma haemolysis index (HI) and interleukine-6 (IL-6) for the prediction of all-stage CS-AKI. We also assessed their ability to predict moderate-to-severe CS-AKI and to discriminate persistent from transient CS-AKI. Methods Adult patients undergoing cardiac surgery with cardiopulmonary bypass (CPB) were prospectively included. Haemolysis index and IL-6 were measured immediately after the end of CPB and 6 hours later. Correction for haemodilution relied upon changes in albuminaemia. Persistent CS-AKI was defined as a steady/increasing CS-AKI stage between the 48th and the 60th postoperative hour as compared with the worst stage observed within the 48 first hours. Results Among 82 patients, CS-AKI occurred in 37 (45%) patients. Postoperative HI and IL-6 were positively correlated to the duration of CPB (r ≤ 0.51, p ≤ 0.0003). Whether we considered isolated measurements of HI or IL-6, their indexation to haemodilution or not, their kinetics and/or their combination, the prediction of all stage CS-AKI was inaccurate (area under the receiver operating characteristic curve [AUCROC]≤ 0.68) whereas moderate-to-severe CS-AKI (6 patients only) was predicted with an honourable performance (AUCROC = 0.77 [95%CI 0.67;0.86] and 0.87 [95%CI 0.77;0.93] for HI and IL-6, respectively). The persistent/transient nature of CS-AKI was inaccurately predicted (AUCROC ≤ 0.68). Conclusions In a population in which most CS-AKI cases were mild, although they frequently (41%) persisted >48 hours, CS-AKI was inaccurately predicted by HI and/or IL-6. A better performance for moderate-to-severe CS-AKI prediction is likely. These preliminary findings are yet to be validated.
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Affiliation(s)
- Karim Lakhal
- Service d’Anesthésie-Réanimation, Hôpital Laënnec, Centre Hospitalier Universitaire de Nantes, France
| | - Bertrand Rozec
- Service d’Anesthésie-Réanimation, Hôpital Laënnec, Centre Hospitalier Universitaire de Nantes, France
- Institut du Thorax, Institut National de la Santé et de la Recherche Médicale (INSERM), Centre National de la Recherche Scientifique (CNRS), Université de Nantes, France
| | - Fouzia Souab
- Service d’Anesthésie-Réanimation, Hôpital Laënnec, Centre Hospitalier Universitaire de Nantes, France
| | - Thomas Senage
- Service de Chirurgie Cardiaque, Hôpital Laënnec, Centre Hospitalier Universitaire de Nantes, France
- Institut National de la Santé et de la Recherche Médicale (INSERM) N°1246, Study of Perinatal, Paediatric and Adolescent Health, Epidemiological Research and Evaluation (SPHERE) Unit, Centre National de la Recherche Scientifique (CNRS), Université de Nantes, France
| | - Maxime Leroy
- direction de la Recherche Clinique et de l’Innovation, Centre Hospitalier Universitaire de Nantes, France
| | - Arnaud Legrand
- direction de la Recherche Clinique et de l’Innovation, Centre Hospitalier Universitaire de Nantes, France
| | - Elodie Boissier
- laboratoire d’Hématologie, Hôpital laënnec, Centre Hospitalier Universitaire de Nantes, France
| | - Edith Bigot-Corbel
- Laboratoire de Biochimie, Hôpital Laënnec, Centre Hospitalier Universitaire de Nantes, France
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Esparbès P, Legrand A, Bandiaky ON, Chéraud-Carpentier M, Martin H, Montassier E, Soueidan A. Subgingival Microbiota and Cytokines Profile Changes in Patients with Periodontitis: A Pilot Study Comparing Healthy and Diseased Sites in the Same Oral Cavities. Microorganisms 2021; 9:microorganisms9112364. [PMID: 34835489 PMCID: PMC8618247 DOI: 10.3390/microorganisms9112364] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 11/10/2021] [Accepted: 11/11/2021] [Indexed: 02/01/2023] Open
Abstract
Periodontitis is a common condition characterized by an exacerbated pro-inflammatory response, which leads to tissue destruction and, ultimately, alveolar bone loss. In this pilot study, we assess the microbiota composition and cytokine profile changes in patients with stage III/IV, grade B/C periodontitis, specifically by comparing healthy and diseased sites in the same oral cavity. Overall, we found that microbiota architecture was significantly disrupted between diseased and healthy sites, and that the clustering was driven, in part, by the increased relative abundances of Synergistetes in diseased sites, as well as the increased abundances of Firmicutes in healthy sites. We also observed that diseased sites were enriched in Synergistetes, TM7, SR1, Spirochaetes, Bacteroidetes and Fusobacteria, and depleted in Firmicutes, Proteobacteria, Tenericutes and Actinobacteria compared to healthy sites. We found that Interleukin-1b, Interleukin-4, Interleukin-10, and Interleukin-17A were significantly overexpressed in diseased sites, whereas Interleukin-6 and TNF-alpha do not differ significantly between healthy and diseased sites. Here, we observed concomitant changes in the subgingival plaque microbiota and cytokines profile, suggesting that this combined alteration could contribute to the pathobiology of periodontitis.
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Affiliation(s)
- Pauline Esparbès
- Department of Periodontology, Faculty of Dental Surgery, UIC 11, Rmes U1229, CHU de Nantes, 44000 Nantes, France; (P.E.); (A.S.)
| | - Arnaud Legrand
- National Institutes of Health and Medical Research, CIC 1413, CHU de Nantes, 44000 Nantes, France;
| | - Octave Nadile Bandiaky
- Division of Fixed Prosthodontics, University of Nantes, 1 Place Alexis Ricordeau, 44042 Nantes, France;
| | | | - Hamida Martin
- UIC Odontology, CHU, 44000 Nantes, France; (M.C.-C.); (H.M.)
| | - Emmanuel Montassier
- Clinical and Experimental Therapeutics of Infections, Faculty of Medicine, EA 3826, University of Nantes, 44000 Nantes, France
- Emergency Department, Nantes University Hospital, 44000 Nantes, France
- Correspondence:
| | - Assem Soueidan
- Department of Periodontology, Faculty of Dental Surgery, UIC 11, Rmes U1229, CHU de Nantes, 44000 Nantes, France; (P.E.); (A.S.)
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7
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Danielo Jouhier M, Boscher C, Roze JC, Cailleau N, Chaligne F, Legrand A, Flamant C, Muller JB. Osteopathic manipulative treatment to improve exclusive breast feeding at 1 month. Arch Dis Child Fetal Neonatal Ed 2021; 106:591-595. [PMID: 33789971 DOI: 10.1136/archdischild-2020-319219] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 02/18/2021] [Accepted: 03/14/2021] [Indexed: 11/04/2022]
Abstract
OBJECTIVE Previous studies have assessed breastfeeding-support programmes. Among these, osteopathic manipulative treatment (OMT) is a frequently used approach, although without strong evidence of efficacy. METHODS A double-blind randomised controlled trial was conducted between July 2013 and March 2016. Breastfed term infants were eligible if one of the following criteria was met: suboptimal breastfeeding behaviour, maternal cracked nipples or maternal pain. The infants were randomly assigned to the intervention or the control group. The intervention consisted of two sessions of early OMT, while in the control group, the manipulations were performed on a doll behind a screen. The primary outcome was the exclusive breastfeeding rate at 1 month, which was assessed in an intention-to-treat analysis. Randomisation was computer generated and only accessible to the osteopath practitioner. The parents, research assistants and paediatricians were masked to group assignment. RESULTS One hundred twenty-eight mother-infant dyads were randomised, with 64 assigned to each group. In each group, five infants were lost to follow-up. In the intervention group, 31 of 59 (53%) of infants were still exclusively breast fed at 1 month vs 39 of 59 (66%) in the control group, (OR 0.55, 95% CI 0.26 to 1.17; p=0.12). After adjustment for suboptimal breastfeeding behaviour, caesarean section, use of supplements and breast shields, the adjusted OR was 0.44 (95% CI 0.17 to 1.11; p=0.08). No adverse effects were reported in either group. CONCLUSION OMT did not improve exclusive breast feeding at 1 month. TRIAL REGISTRATION NUMBER NCT01890668.
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Affiliation(s)
- Marie Danielo Jouhier
- Department of Neonatal Medicine, University Hospital Centre Nantes, Nantes, France.,Clinical Epidemiology, Clinical investigation Center (CIC004), University Hospital Centre Nantes, Nantes, France
| | - Cécile Boscher
- Department of Neonatal Medicine, University Hospital Centre Nantes, Nantes, France.,Clinical Epidemiology, Clinical investigation Center (CIC004), University Hospital Centre Nantes, Nantes, France
| | - Jean-Christophe Roze
- Department of Neonatal Medicine, University Hospital Centre Nantes, Nantes, France.,Clinical Epidemiology, Clinical investigation Center (CIC004), University Hospital Centre Nantes, Nantes, France
| | | | | | - Arnaud Legrand
- Clinical Epidemiology, Clinical investigation Center (CIC004), University Hospital Centre Nantes, Nantes, France
| | - Cyril Flamant
- Department of Neonatal Medicine, University Hospital Centre Nantes, Nantes, France.,Clinical Epidemiology, Clinical investigation Center (CIC004), University Hospital Centre Nantes, Nantes, France
| | - Jean-Baptiste Muller
- Department of Neonatal Medicine, University Hospital Centre Nantes, Nantes, France .,Clinical Epidemiology, Clinical investigation Center (CIC004), University Hospital Centre Nantes, Nantes, France
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Lakhal K, Bigot-Corbel E, Sacchetto E, Chabrun F, Senage T, Figueres L, Leroy M, Legrand A, Rozec B. Early recognition of cardiac surgery-associated acute kidney injury: lack of added value of TIMP2 IGFBP7 over short-term changes in creatinine (an observational pilot study). BMC Anesthesiol 2021; 21:244. [PMID: 34641779 PMCID: PMC8513334 DOI: 10.1186/s12871-021-01387-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 05/11/2021] [Indexed: 12/05/2022] Open
Abstract
Background For the detection of cardiac surgery-associated acute kidney injury (CS-AKI), the performance of urine tissue inhibitor of metalloproteinase 2 insulin-like growth factor-binding protein 7 (TIMP2 IGFBP7) has never been compared with that of very early changes in plasma creatinine (∆pCr). We hypothesized that, in the context of perioperative haemodilution, lack of postoperative decrease in pCr would be of honourable performance for the detection of CS-AKI. We therefore aimed at comparing these biomarkers and their kinetics (primary objective). As secondary objectives, we assessed plasma neutrophil gelatinase-associated lipocalin (pNGAL), cystatin C (pCysC) and urea (pUrea). We also determined the ability of these biomarkers to early discriminate persistent from transient CS-AKI. Methods Patients over 75 years-old undergoing aortic valve replacement with cardiopulmonary bypass (CPB) were included in this prospective observational study. Biomarkers were measured before/after CPB and at the sixth postoperative hour (H6). Results In 65 patients, CS-AKI occurred in 27 (42%). ∆pCr from post-CPB to H6 (∆pCrpostCPB-H6): outperformed TIMP2 IGFBP7 at H6 and its intra- or postoperative changes: area under the receiver operating characteristic curve (AUCROC) of 0.84 [95%CI:0.73–0.92] vs. ≤0.67 [95%CI:0.54–0.78], p ≤ 0.03. The AUCROC of pNGAL, pCysC and pUrea did not exceed 0.72 [95%CI:0.59–0.83]. Indexing biomarkers levels for blood or urine dilution did not improve their performance. Combining TIMP2 IGFBP7 and ∆pCrpostCPB-H6 was of no evident added value over considering ∆pCrpostCPB-H6 alone. For the early recognition of persistent CS-AKI, no biomarker outperformed ∆pCrpostCPB-H6 (AUCROC = 0.69 [95%CI:0.48–0.85]). Conclusions In this hypothesis-generating study mostly testing early detection of mild CS-AKI, there was no evident added value of the tested modern biomarkers over early minimal postoperative changes in pCr: despite the common perioperative hemodilution in the setting of cardiac surgery, if pCr failed to decline within the 6 h after CPB, the development of CS-AKI was likely. Confirmatory studies with more severe forms of CS-AKI are required. Supplementary Information The online version contains supplementary material available at 10.1186/s12871-021-01387-6.
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Affiliation(s)
- Karim Lakhal
- Service d'Anesthésie-Réanimation, Hôpital Laënnec, Centre Hospitalier Universitaire, 44093, Nantes, France.
| | - Edith Bigot-Corbel
- Laboratoire de Biochimie, Hôpital Laënnec, Centre Hospitalier Universitaire, 44093, Nantes, France
| | - Emilie Sacchetto
- Laboratoire de Biochimie, Hôpital Laënnec, Centre Hospitalier Universitaire, 44093, Nantes, France
| | - Floris Chabrun
- Laboratoire de Biochimie, Hôpital Laënnec, Centre Hospitalier Universitaire, 44093, Nantes, France
| | - Thomas Senage
- Service de Chirurgie Cardiaque, Hôpital Laënnec, Centre Hospitalier Universitaire, 44093, Nantes, France.,Institut National de la Santé et de la Recherche Médicale (INSERM) n°1246, Study of Perinatal, Paediatric and Adolescent Health: Epidemiological Research and Evaluation (SPHERE) Unit, Centre National de la Recherche Scientifique (CNRS), Université de Nantes, Nantes, France
| | - Lucile Figueres
- Service de Néphrologie et d'Immunologie clinique, institut de transplantation urologie-néphrologie, Hôtel-Dieu, Centre Hospitalier Universitaire, 44093, Nantes, France
| | - Maxime Leroy
- Direction de la Recherche Clinique et de l'Innovation, Centre Hospitalier Universitaire, 44093, Nantes, France
| | - Arnaud Legrand
- Direction de la Recherche Clinique et de l'Innovation, Centre Hospitalier Universitaire, 44093, Nantes, France
| | - Bertrand Rozec
- Service d'Anesthésie-Réanimation, Hôpital Laënnec, Centre Hospitalier Universitaire, 44093, Nantes, France.,Institut du Thorax, Institut National de la Santé et de la Recherche Médicale (INSERM), Centre National de la Recherche Scientifique (CNRS), Université de Nantes, 44093, Nantes, France
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9
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Legrand A, Quintard B, Garrouteigt C, Beylot-Barry M, Broc G. From neglect to earlier diagnosis: a qualitative meta-synthesis of psycho-social factors associated with consultation delay in advanced basal cell carcinoma. PSYCHOL HEALTH MED 2021; 27:1793-1804. [PMID: 34251919 DOI: 10.1080/13548506.2021.1952281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Local malignant potential of basal cell carcinoma (BCC) can lead at advanced stages to the destruction of underlying tissues and significant morbidity. The primary risk factor for progression of advanced basal cell carcinoma (aBCC) is the long duration of the tumour, which results from delay in seeking medical care. To assess the implication of psycho-social factors in the delay before the first medical consultation among patients with aBCC, in order to identify potentially targetable factors enabling earlier diagnosis. Three-step qualitative meta-synthesis: (1) systematic review of the literature; (2) structured qualitative analysis of these documents; (3) construction of a logical model. After screening, 81 articles were included. Self-neglect and denial in patients are roundly put forward as the main obstacles to consultation. We found that avoidance behaviour, mistaken interpretation and banalisation of symptoms, and fear of treatment all played a role. The strongest motivation to seek help comes from the realisation that new symptoms may be dangerous; the role of interpersonal surroundings is highlighted as helpful. Patient delay has multifactorial origins in aBCC, especially self-neglect ranging from denial of tumours to conscious refusal of treatment.
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Affiliation(s)
- A Legrand
- Department of Dermatology, Bordeaux University Hospital, Bordeaux University, Bordeaux, France
| | - B Quintard
- INSERM U1219, Bordeaux Population Health Research Centre, Team: Handicap, Activity, Cognition, Health, Bordeaux, France
| | - C Garrouteigt
- Department of Dermatology, Bordeaux University Hospital, Bordeaux University, Bordeaux, France
| | - M Beylot-Barry
- Department of Dermatology, Bordeaux University Hospital, Bordeaux University, Bordeaux, France.,INSERM U1053, UMR Bariton, Oncogenesis of Cutaneous Lymphoma, University of Bordeaux, Bordeaux, France
| | - G Broc
- Department of Psychology, Paul Valéry Montpellier 3, University of Montpellier, Montpellier, France
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Kyula JN, Roulstone V, Elliott R, Whittock H, Bozhanova G, McLaughlin M, Pedersen M, Krastev D, Pettitt S, Legrand A, Tenev T, Wright J, Yu L, Choudhary J, Meier P, Lord CJ, Melcher A, Wilkinson G, Coffey M, Harrington KJ. Abstract 1932: Talazoparib interacts with oncolytic reovirus to enhance death-inducing signaling complex (DISC)-mediated apoptosis and immune response. Cancer Res 2021. [DOI: 10.1158/1538-7445.am2021-1932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Reovirus (RT3D) is a naturally occurring double-stranded RNA oncolytic virus that has shown preclinical efficacy in a wide range of tumor types. Early phase clinical studies have shown that this agent has modest monotherapy efficacy and can safely be combined with cytotoxic chemotherapy regimens. In the current studies, we used a high-throughput drug screen approach of different targeted therapeutic agents with the aim of looking for potential viral sensitizers that could enhance RT3D tumor killing. BMN-673 (talazoparib), a clinically approved poly(ADP)-ribose polymerase 1 (PARP-1) inhibitor was identified as a top hit and found to sensitize profoundly to RT3D both in vitro and in vivo in human xenograft tumors in a nude mouse model. We found that RT3D activated cellular PARP1 and was associated with PARylation of cellular proteins, including components of the DISC-associated cell death machinery. Combined treatment with RT3D and talazoparib enhanced extrinsic apoptosis (amplified by autocrine/paracrine TNF-α and TRAIL signaling), NF-κB pathway activity and pro-inflammatory cytokine production (CCL5/RANTES, CXCL8/IL8, CXCL1/GRO and CXCL10/IP10). Signaling was shown to be dependent on nucleic acid sensing mechanisms mediated by RIG-I and TLR3. We also found anti-tumour efficacy in an immunocompetent mouse model and this correlated with an increase in an immune response following combination treatment of RT3D and talazoparib. Our data provide a strong rationale for the combination of oncolytic RT3D with PARP1 inhibitors to exploit immunogenic response in cancer treatment.
Citation Format: Joan N. Kyula, Victoria Roulstone, Richard Elliott, Harriet Whittock, Galabina Bozhanova, Martin McLaughlin, Malin Pedersen, Dragomir Krastev, Stephen Pettitt, Arnaud Legrand, Tencho Tenev, James Wright, Lu Yu, Jyoti Choudhary, Pascal Meier, Christopher J. Lord, Alan Melcher, Grey Wilkinson, Matt Coffey, Kevin J. Harrington. Talazoparib interacts with oncolytic reovirus to enhance death-inducing signaling complex (DISC)-mediated apoptosis and immune response [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2021; 2021 Apr 10-15 and May 17-21. Philadelphia (PA): AACR; Cancer Res 2021;81(13_Suppl):Abstract nr 1932.
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Affiliation(s)
- Joan N. Kyula
- 1Institute of Cancer Research, London, United Kingdom
| | | | - Richard Elliott
- 2Cancer Research UK Edinburgh Centre, Edinburgh, United Kingdom
| | | | | | | | | | | | | | | | - Tencho Tenev
- 1Institute of Cancer Research, London, United Kingdom
| | - James Wright
- 1Institute of Cancer Research, London, United Kingdom
| | - Lu Yu
- 1Institute of Cancer Research, London, United Kingdom
| | | | - Pascal Meier
- 1Institute of Cancer Research, London, United Kingdom
| | | | - Alan Melcher
- 1Institute of Cancer Research, London, United Kingdom
| | | | - Matt Coffey
- 3Oncolytics Biotech Inc, Calgary, Alberta, Canada
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11
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Legrand A, Pujol C, Durand CM, Mesnil A, Rubera I, Duranton C, Zuily S, Sousa AB, Renaud M, Boucher JL, Pietrancosta N, Adham S, Orssaud C, Marelli C, Casali C, Ziccardi L, Villain N, Ewenczyk C, Durr A, Mignot C, Stevanin G, Billon C, Hureaux M, Jeunemaitre X, Goizet C, Albuisson J. Pseudoxanthoma elasticum overlaps hereditary spastic paraplegia type 56. J Intern Med 2021; 289:709-725. [PMID: 33107650 DOI: 10.1111/joim.13193] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 09/29/2020] [Indexed: 01/31/2023]
Abstract
PURPOSE Pseudoxanthoma elasticum (PXE) is a recessive disorder involving skin, eyes and arteries, mainly caused by ABCC6 pathogenic variants. However, almost one fifth of patients remain genetically unsolved despite extensive genetic screening of ABCC6, as illustrated in a large French PXE series of 220 cases. We searched for new PXE gene(s) to solve the ABCC6-negative patients. METHODS First, family-based exome sequencing was performed, in one ABCC6-negative PXE patient with additional neurological features, and her relatives. CYP2U1, involved in hereditary spastic paraplegia type 56 (SPG56), was selected based on this complex phenotype, and the presence of two candidate variants. Second, CYP2U1 sequencing was performed in a retrospective series of 46 additional ABCC6-negative PXE probands. Third, six additional SPG56 patients were evaluated for PXE skin and eye phenotype. Additionally, plasma pyrophosphate dosage and functional analyses were performed in some of these patients. RESULTS 6.4% of ABCC6-negative PXE patients (n = 3) harboured biallelic pathogenic variants in CYP2U1. PXE skin lesions with histological confirmation, eye lesions including maculopathy or angioid streaks, and various neurological symptoms were present. CYP2U1 missense variants were confirmed to impair protein function. Plasma pyrophosphate levels were normal. Two SPG56 patients (33%) presented some phenotypic overlap with PXE. CONCLUSION CYP2U1 pathogenic variants are found in unsolved PXE patients with neurological findings, including spastic paraplegia, expanding the SPG56 phenotype and highlighting its overlap with PXE. The pathophysiology of ABCC6 and CYP2U1 should be explored to explain their respective role and potential interaction in ectopic mineralization.
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Affiliation(s)
- A Legrand
- From the, Université de Paris, PARCC, INSERM, Paris, France.,Centre de Référence des Maladies Vasculaires Rares, AP-HP, Hôpital européen Georges Pompidou, Paris, France
| | - C Pujol
- Sorbonne Université; Inserm, U1127; CNRS, UMR 7225; Institut du Cerveau, Paris, France
| | - C M Durand
- Inserm, U1211, Laboratoire Maladies Rares: Génétique et Métabolisme, Univ. Bordeaux; Centre de Référence Neurogénétique, Service de Génétique Médicale, CHU Bordeaux, Bordeaux, France
| | - A Mesnil
- Département de Génétique AP-HP, Hôpital européen Georges Pompidou, Paris, France
| | - I Rubera
- Université Côte d'Azur, CNRS-UMR 7370, Laboratoire de Physiomédecine Moléculaire, LabEx ICST, Nice, France
| | - C Duranton
- Université Côte d'Azur, CNRS-UMR 7370, Laboratoire de Physiomédecine Moléculaire, LabEx ICST, Nice, France
| | - S Zuily
- Université de Lorraine, Inserm UMR_S 1116; CHRU de Nancy, Service de Médecine vasculaire, Centre de Compétences Régional des Maladies Vasculaires Rares, Nancy, France
| | - A B Sousa
- Medical Genetics, Department of Pediatrics, Hospital de Santa Maria, Centro Hospitalar Lisboa Norte, Centro Académico de Medicina de Lisboa, Lisboa, Portugal
| | - M Renaud
- CHRU de Nancy, Service de Neurologie, Nancy, France
| | - J L Boucher
- UMR 8601 CNRS, Université de Paris, Paris, France
| | | | - S Adham
- Centre de Référence des Maladies Vasculaires Rares, AP-HP, Hôpital européen Georges Pompidou, Paris, France.,Université de Paris, Paris, France
| | - C Orssaud
- Unité fonctionnelle d'ophtalmologie, AP-HP, Hôpital Européen Georges Pompidou, Paris, France
| | - C Marelli
- Inserm U1198 MMDN; Gui de Chauliac University Hospital, Department of Neurology, Expert Centre for Neurogenetic Diseases and Adult Mitochondrial and Metabolic Diseases, Montpellier, France
| | - C Casali
- Department of SBMC, Sapienza University Rome, Rome, Italy
| | - L Ziccardi
- IRCCS- Fondazione Bietti, Neurophysiology of Vision and Neuroophthalmology Unit, Rome, Italy
| | - N Villain
- Sorbonne Université; Inserm, U1127; CNRS, UMR 7225; Institut du Cerveau; Sorbonne Université, GRC n° 21, Alzheimer Precision Medicine; AP-HP, Hôpital de la Pitié-Salpêtrière; Département de Neurologie, Institut de la Mémoire et de la maladie d'Alzheimer, Paris, France
| | - C Ewenczyk
- Sorbonne Université; Inserm, U1127; CNRS, UMR 7225; Institut du Cerveau; AP-HP, Hôpital de la Pitié-Salpêtrière, Département de Génétique, Paris, France
| | - A Durr
- Sorbonne Université; Inserm, U1127; CNRS, UMR 7225; Institut du Cerveau; AP-HP, Hôpital de la Pitié-Salpêtrière, Département de Génétique, Paris, France
| | - C Mignot
- Sorbonne Université; Inserm, U1127; CNRS, UMR 7225; Institut du Cerveau; AP-HP, Hôpital de la Pitié-Salpêtrière, Département de Génétique; Centre de Référence Déficiences Intellectuelles de Causes Rares, Paris, France
| | - G Stevanin
- Sorbonne Université; Inserm, U1127; CNRS, UMR 7225; Institut du Cerveau; PSL research University, Ecole Pratique des Hautes Etudes, Neurogenetics team, Paris, France
| | - C Billon
- From the, Université de Paris, PARCC, INSERM, Paris, France.,Centre de Référence des Maladies Vasculaires Rares, AP-HP, Hôpital européen Georges Pompidou, Paris, France
| | - M Hureaux
- From the, Université de Paris, PARCC, INSERM, Paris, France.,Département de Génétique AP-HP, Hôpital européen Georges Pompidou, Paris, France
| | - X Jeunemaitre
- From the, Université de Paris, PARCC, INSERM, Paris, France.,Centre de Référence des Maladies Vasculaires Rares, AP-HP, Hôpital européen Georges Pompidou, Paris, France
| | - C Goizet
- Inserm, U1211, Laboratoire Maladies Rares: Génétique et Métabolisme, Univ. Bordeaux; Centre de Référence Neurogénétique, Service de Génétique Médicale, CHU Bordeaux, Bordeaux, France
| | - J Albuisson
- From the, Université de Paris, PARCC, INSERM, Paris, France.,Centre de Référence des Maladies Vasculaires Rares, AP-HP, Hôpital européen Georges Pompidou, Paris, France.,Département de Biologie et Pathologie des Tumeurs, Centre Georges François Leclerc, Dijon, France
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Alliez P, Cosmo RD, Guedj B, Girault A, Hacid MS, Legrand A, Rougier N. Attributing and Referencing (Research) Software: Best Practices and Outlook From Inria. Comput Sci Eng 2020. [DOI: 10.1109/mcse.2019.2949413] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
| | | | | | - Alain Girault
- University Grenoble Alpes, Inria, CNRS, Grenoble INP
| | | | - Arnaud Legrand
- University of Grenoble Alpes, CNRS, Inria, Grenoble INP, LIG
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Carcelain G, David F, Lepage S, Bonnefont-Rousselot D, Delattre J, Legrand A, Peynet J, Troupel S. Simple Method for Quantifying Alpha-Tocopherol in Low-Density+Very-Low-Density Lipoproteins and in High-Density Lipoproteins. Clin Chem 2019. [DOI: 10.1093/clinchem/38.9.1792] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
We assessed the distribution of alpha-tocopherol in serum lipoprotein samples after separating the lipoprotein fractions by either sequential ultracentrifugation or selective precipitation with sodium phosphotungstate-magnesium chloride reagent. alpha-Tocopherol concentrations were determined by reversed-phase high-performance liquid chromatography. After ultracentrifugation, we found that in men, low- and very-low-density serum lipoproteins (LDL-VLDL) contained 53.6% of alpha-tocopherol vs 46.4% in high-density lipoproteins (HDL). In women, serum LDL-VLDL contained 45.6% alpha-tocopherol after ultracentrifugation vs 54.4% in HDL. After selective precipitation, the proportions of alpha-tocopherol in men were 56.1% in LDL-VLDL vs 43.9% in HDL, and in women, 45.4% in LDL-VLDL vs 54.6% in HDL. After selective precipitation, alpha-tocopherol recovery from whole lipoprotein fractions was 97% to 100% vs 80% after ultracentrifugation, thus allowing more accurate alpha-tocopherol quantification than after separation by ultracentrifugation.
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Affiliation(s)
- G Carcelain
- Laboratoire de Biochimie, Hôpital de la Salpétrière, Paris, France
| | - F David
- Laboratoire de Biochimie, Hôpital de la Salpétrière, Paris, France
| | - S Lepage
- Laboratoire de Biochimie, Hôpital de la Salpétrière, Paris, France
| | | | - J Delattre
- Laboratoire de Biochimie, Hôpital de la Salpétrière, Paris, France
| | - A Legrand
- Laboratoire de Biochimie, Hôpital de la Salpétrière, Paris, France
| | - J Peynet
- Laboratoire de Biochimie, Hôpital de la Salpétrière, Paris, France
| | - S Troupel
- Laboratoire de Biochimie, Hôpital de la Salpétrière, Paris, France
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14
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Legrand A, Heron-Mermin D, Pham-Ledard A, Beylot-Barry M, Cogrel O. Lymphœdème ano-génital et hidradénite suppurée : 6 cas. Ann Dermatol Venereol 2019. [DOI: 10.1016/j.annder.2019.09.331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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Javaudin F, Pes P, Montassier E, Legrand A, Ordureau A, Volteau C, Arnaudet I, Le Conte P. Early point-of-care focused echocardiographic asystole as a predictive factor for absence of return of spontaneous circulatory in out-of-hospital cardiac arrests: a study protocol for a prospective, multicentre observational study. BMJ Open 2019; 9:e027448. [PMID: 31471433 PMCID: PMC6719758 DOI: 10.1136/bmjopen-2018-027448] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
INTRODUCTION Management of out-of-hospital cardiac arrests (OHCAs) in France is performed by a particular prehospital system based on medicalisation of mobile intensive care units composed of an emergency physician and a nurse with all the required devices for advanced care. It follows the European recommendations which advocate for the use of early point-of-care focused echocardiography (EPOCE) in the prehospital setting. An ability of EPOCE may be to predict the absence of return of spontaneous circulation (ROSC) in cases of absence of cardiac motion. We thus intended to investigate this predictive value with a prospective multicentre study. This paper describes the study protocol, while the first patients were recruited in December 2018. METHODS ACE is a prospective multicentre (n=8) prognostic study. Briefly, as soon as OHCA is diagnosed and advanced life support (ALS) is initiated, EPOCE will be performed during the automated external defibrillator' analysis period. The physician will assess detectable motion within the heart and reversible causes of OHCA. However, as the prognostic value of absence of cardiac motion is not currently validated, the results of EPOCE will not be used to withdraw ALS, and the decision to withdraw life support will be done following the European Resuscitation Council recommendations during our study. ANALYSIS The primary endpoint is the positive predictive value of absence of cardiac motion for the absence of final ROSC. The secondary endpoints are predictive characteristics of EPOCE asystole on morbimortality 30 days after OHCA, description of reversible cause and analysis of the EPOCE technique. ETHICS AND DISSEMINATION ACE was approved by an ethical committee (2018-AO1491-54). While ACE is adapted to the French prehospital system, its results will be translatable to other organisations if inter-rater variability is not found. TRIAL REGISTRATION NUMBER NCT03494153.
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Affiliation(s)
- François Javaudin
- Emergency Medicine, Université de Nantes Faculte de Médecine, Nantes, France
- Emergency Department, Centre Hospitalier Universitaire de Nantes, Nantes, France
| | - Philippe Pes
- Emergency Department, Centre Hospitalier Universitaire de Nantes, Nantes, France
| | - Emmanuel Montassier
- Emergency Medicine, Université de Nantes Faculte de Médecine, Nantes, France
- Emergency Department, Centre Hospitalier Universitaire de Nantes, Nantes, France
| | - Arnaud Legrand
- Centre Hospitalier Universitaire de Nantes, Nantes, France
| | - Aline Ordureau
- Centre Hospitalier Universitaire de Nantes, Nantes, France
| | | | - Idriss Arnaudet
- Emergency Department, Centre Hospitalier Universitaire de Nantes, Nantes, France
| | - Philippe Le Conte
- Emergency Medicine, Université de Nantes Faculte de Médecine, Nantes, France
- Emergency Department, Centre Hospitalier Universitaire de Nantes, Nantes, France
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16
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Javaudin F, Legrand A, Pes P, Montassier E, Volteau C. Response to letter to the editor: "comment on unplanned out-of-hospital birth and risk factors of adverse perinatal outcome: findings from a prospective cohort". Scand J Trauma Resusc Emerg Med 2019; 27:59. [PMID: 31138297 PMCID: PMC6540390 DOI: 10.1186/s13049-019-0635-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 05/17/2019] [Indexed: 11/10/2022] Open
Abstract
The aim of this Letter to the Editor was to respond to a comment highlighting potential statistical biases in an analysis of our recently published article. We therefore specified the method for selecting the model variables in order to limit overfitting, then we used the Firth method to control the sparse data bias, and finally for checking internal validity we used bootstrapping methods. In total, the conclusions of our model were not changed by these new analyses.
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Affiliation(s)
- François Javaudin
- Department of Emergency Medicine, CHU Nantes, Nantes, France.,MiHAR lab, Université de Nantes, 44000, Nantes, France
| | | | - Philippe Pes
- Department of Emergency Medicine, CHU Nantes, Nantes, France
| | - Emmanuel Montassier
- Department of Emergency Medicine, CHU Nantes, Nantes, France. .,MiHAR lab, Université de Nantes, 44000, Nantes, France.
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Abstract
OBJECTIVE The metabolic syndrome (MetS) is responsible for an increased risk of type 2 diabetes, cardiovascular diseases and is associated with all-cause and cardiovascular mortality. Economic and social vulnerability is not an easy concept to grasp, but some studies investigate the association between MetS and socioeconomic and demographic factors, deprivation (more often correlations rather than causal one due to data). This work aims to assess the association between MetS and socio-economic gradient (SEG) in the literature by performing a meta-analysis. DESIGN The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement for systematic reviews were followed. SETTING The raw list of studies extracted from PubMed as regard to the inclusion/exclusion criteria was imported in Word. Studies were filed with regard to our three definitions of SEG and their title. PARTICIPANTS Subgroup analysis were performed considering several definitions of Mets: NCEP-ATPIII and IDF2006. RESULTS The overall multivariable-adjusted OR showed that the risk of MetS was significantly increased in association with SEG The results of the subgroup analysis showed an increased risk of MetS in association with SEG when IDF definition was considered. CONCLUSIONS Targeted interventions must be implemented in a specific way as prevention campaigns aimed at the general population are generally not adapted to this particular vulnerable population.
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Affiliation(s)
- M Blanquet
- Service de Santé Publique, Centre Hospitalo-Universitaire de Clermont-Ferrand, Clermont-Ferrand, France; PEPRADE (Périnatalité, grossesse, Environnement, PRAtiques médicales et DEveloppement), EA 4681, Université d'Auvergne, Clermont-Ferrand, France
| | - A Legrand
- Service de Santé Publique, Centre Hospitalo-Universitaire de Clermont-Ferrand, Clermont-Ferrand, France; PEPRADE (Périnatalité, grossesse, Environnement, PRAtiques médicales et DEveloppement), EA 4681, Université d'Auvergne, Clermont-Ferrand, France
| | - A Pélissier
- LEDi (Laboratoire d'Economie de Dijon), EA 7467, Université Bourgogne Franche-Comté, Dijon, France
| | - C Mourgues
- DRCI (Délégation à la Recherche Clinique et à l'Innovation), Centre Hospitalo-Universitaire de Clermont-Ferrand, Clermont-Ferrand, France; PEPRADE (Périnatalité, grossesse, Environnement, PRAtiques médicales et DEveloppement), EA 4681, Université d'Auvergne, Clermont-Ferrand, France.
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18
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Javaudin F, Hamel V, Legrand A, Goddet S, Templier F, Potiron C, Pes P, Bagou G, Montassier E. Unplanned out-of-hospital birth and risk factors of adverse perinatal outcome: findings from a prospective cohort. Scand J Trauma Resusc Emerg Med 2019; 27:26. [PMID: 30825876 PMCID: PMC6397745 DOI: 10.1186/s13049-019-0600-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 02/10/2019] [Indexed: 11/10/2022] Open
Abstract
Background In France, while most babies are delivered at hospital, emergency medical services (EMS) weekly manage calls for unplanned out-of-hospital births. The objective of our study was to describe neonatal morbidity and mortality, defined as death or neonatal intensive care unit hospitalization at Day 7, in a prospective multicentric cohort of unplanned out-of-hospital births. Methods We prospectively analyzed out-of-hospital births from 25 prehospital EMS units in France. The primary outcome was neonatal morbidity and mortality, and the secondary outcome was risk factors associated with neonatal morbidity and mortality. A univariate logistic regression was first made, followed by a multivariate logistic regression with backward selection. Results From October 2011 to August 2018, a total of 1670 unplanned out-of-hospital births were included. Of these, 1652 (99.2%) were singleton and 1537 (93.5%) had prenatal care. Maternal mean age of the study population was 30 ± 5.5 (range 15 to 48). The majority of women were multiparous, but 13% were nulliparous. Overall, 45.3% of these unplanned out-of-hospital births were medically-driven, either by phone during medical regulation (12.5%) or on scene by the prehospital emergency medical service units (32.9%). The prevalence of neonatal morbidity and mortality was 6.3% (n = 106) after an unplanned out-of-hospital birth (death before Day 7: n = 20; 1.2%). The multivariate logistic regression found that multiparity (adjusted Odds Ratio = 70.7 [4.7–1062]), prematurity (adjusted Odds Ratio = 6.7 [2.1–21.4]), maternal pathology (adjusted Odds Ratio = 2.8 [1.0–7.5]) and hypothermia (adjusted Odds Ratio = 2.8 [1.1–7.6]) were independent predictive factors of neonatal morbidity and mortality. Conclusions Our study assessed for the first time risk factors for adverse perinatal outcome in a large and multicenter cohort of unplanned out-of-hospital births. We have to improve temperature management in the out-of-hospital field and future trials are required to investigate strategies to optimize newborns management in the prehospital area. Electronic supplementary material The online version of this article (10.1186/s13049-019-0600-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- François Javaudin
- Department of Emergency Medicine, CHU Nantes, Nantes University Hospital, 44000, Nantes, France.,MiHAR lab, Université de Nantes, 44000, Nantes, France
| | - Valérie Hamel
- Emergency Department, Toulouse Purpan University Hospital, Toulouse, France
| | | | - Sybille Goddet
- Samu-21, CHU de Dijon, SAU-Smur, CH du Creusot, Dijon, France
| | - François Templier
- Emergency Department, SAMU 49, University Hospital of Angers, Angers, France
| | - Christine Potiron
- Department of Emergency Medicine, CHU Nantes, Nantes University Hospital, 44000, Nantes, France
| | - Philippe Pes
- Department of Emergency Medicine, CHU Nantes, Nantes University Hospital, 44000, Nantes, France
| | - Gilles Bagou
- Samu, groupement hospitalier Édouard-Herriot, Lyon, France
| | - Emmanuel Montassier
- Department of Emergency Medicine, CHU Nantes, Nantes University Hospital, 44000, Nantes, France. .,MiHAR lab, Université de Nantes, 44000, Nantes, France.
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Van Hove O, Van Muylem A, Leduc D, Legrand A, Jansen B, Feipel V, Van Sint Jan S, Bonnechère B. The use of cognitive mobile games to assess cognitive function of healthy subjects under various inspiratory loads. Medicine in Novel Technology and Devices 2019. [DOI: 10.1016/j.medntd.2019.100005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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20
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Treille S, Dewez F, Asta S, Benahmed A, Legrand A, Guillaume B. Suppléments oraux d’acides amines essentiels (AAE) et d’éllagitannins chez le patient hémodialysé. NUTR CLIN METAB 2019. [DOI: 10.1016/j.nupar.2019.01.355] [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: 11/15/2022]
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Affiliation(s)
- B Chauveau
- Université Clermont Auvergne, Institut Pascal, Clermont-Ferrand, France
- Pôle Radiologie, Centre Hospitalier Universitaire Gabriel Montpied, Clermont-Ferrand, France
| | - C Auclair
- Université Clermont Auvergne, Institut Pascal, Clermont-Ferrand, France
- Service de Santé Publique, Centre Hospitalier Universitaire de Clermont-Ferrand, Clermont-Ferrand, France
| | - A Legrand
- Université Clermont Auvergne, Institut Pascal, Clermont-Ferrand, France
- Pôle Femme Et Enfant, Hôpital Estaing, Centre Hospitalier Universitaire de Clermont-Ferrand, 1 Place L&R Aubrac, 63003, Clermont-Ferrand Cedex 1, France
| | - R Mangione
- Collège Français d'Echographie Foetale (CFEF), France
| | - L Gerbaud
- Université Clermont Auvergne, Institut Pascal, Clermont-Ferrand, France
- Service de Santé Publique, Centre Hospitalier Universitaire de Clermont-Ferrand, Clermont-Ferrand, France
| | - F Vendittelli
- Université Clermont Auvergne, Institut Pascal, Clermont-Ferrand, France
- Pôle Femme Et Enfant, Hôpital Estaing, Centre Hospitalier Universitaire de Clermont-Ferrand, 1 Place L&R Aubrac, 63003, Clermont-Ferrand Cedex 1, France
| | - L Boyer
- Université Clermont Auvergne, Institut Pascal, Clermont-Ferrand, France
- Pôle Radiologie, Centre Hospitalier Universitaire Gabriel Montpied, Clermont-Ferrand, France
| | - D Lémery
- Université Clermont Auvergne, Institut Pascal, Clermont-Ferrand, France
- Pôle Femme Et Enfant, Hôpital Estaing, Centre Hospitalier Universitaire de Clermont-Ferrand, 1 Place L&R Aubrac, 63003, Clermont-Ferrand Cedex 1, France
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Legrand A, Pham-Ledard A, Vergier B, Merlio JP, Beylot-Barry M. Primary cutaneous marginal zone lymphoma: relevance of searching for a blood B-cell clone? Eur J Cancer 2019. [DOI: 10.1016/s0959-8049(19)30546-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Legrand A, Darrigade AS, Andreu N, Jacquemin C, Boniface K, Taïeb A, Seneschal J. Réponse d’une dermatite atopique et d’une pelade au dupilumab : faire d’une pierre, deux coups. Ann Dermatol Venereol 2018. [DOI: 10.1016/j.annder.2018.09.570] [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: 11/25/2022]
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24
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Chauveau B, Auclair C, Legrand A, Mangione R, Gerbaud L, Vendittelli F, Boyer L, Lémery D. Improving image quality of mid-trimester fetal sonography in obese women: role of ultrasound propagation velocity. Ultrasound Obstet Gynecol 2018; 52:769-775. [PMID: 29363850 DOI: 10.1002/uog.19015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 11/20/2017] [Accepted: 01/05/2018] [Indexed: 06/07/2023]
Abstract
OBJECTIVE The quality of ultrasound images is impaired in obese patients. All ultrasound scanners are calibrated for an ultrasound propagation velocity of 1540 m/s, but the propagation in fatty tissue is slower (in the order of 1450 m/s). The main objective of this study was to evaluate the quality of images obtained with different ultrasound propagation velocity settings during the mid-trimester fetal ultrasound examination in obese patients. METHODS This was a cross-sectional study using image sets of four recommended scanning planes collected from 32 obese pregnant women during their mid-trimester fetal scan. Each image set comprised three images obtained successively at three different propagation velocity settings (1540 m/s, 1480 m/s and 1420 m/s). A panel of 114 experts assessed the quality of 100 image sets, grading them from A (most acceptable) to C (least acceptable). Scanning-plane-specific indicators of adiposity (fatty layer thickness, probe-to-organ distance) were analyzed for each scanning plane. RESULTS The experts had a mean of 18.1 ± 10.2 years of experience. The grade distribution (A, B, C) differed significantly (P < 0.0001) between the three propagation velocity settings tested; at the lower speed of 1480 m/s, images were most often graded A, while at the conventional speed of 1540 m/s, they were most often graded C. Regardless of the scanning plane, the thicker the fatty layer of the abdominal wall in a given plane, the lower the preferred speed (P < 0.0001). CONCLUSION The construction of images taking into account ultrasound propagation velocities lower than 1540 m/s can improve significantly the quality of images obtained during mid-trimester fetal ultrasonography in obese women. Copyright © 2018 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- B Chauveau
- Université Clermont Auvergne, CNRS-UMR 6602, Institut Pascal, Axe TGI, Clermont-Ferrand, France
- Pôle Radiologie, Centre Hospitalier Universitaire Gabriel Montpied, Clermont-Ferrand, France
| | - C Auclair
- Université Clermont Auvergne, CNRS-UMR 6602, Institut Pascal, Axe TGI, Clermont-Ferrand, France
- Service de Santé Publique, Centre Hospitalier Universitaire de Clermont-Ferrand, Clermont-Ferrand, France
| | - A Legrand
- Université Clermont Auvergne, CNRS-UMR 6602, Institut Pascal, Axe TGI, Clermont-Ferrand, France
- Pôle Femme Et Enfant, Centre Hospitalier Universitaire de Clermont-Ferrand, Clermont-Ferrand, France
| | - R Mangione
- Collège Français d'Echographie Foetale (CFEF), France
| | - L Gerbaud
- Université Clermont Auvergne, CNRS-UMR 6602, Institut Pascal, Axe TGI, Clermont-Ferrand, France
- Service de Santé Publique, Centre Hospitalier Universitaire de Clermont-Ferrand, Clermont-Ferrand, France
| | - F Vendittelli
- Université Clermont Auvergne, CNRS-UMR 6602, Institut Pascal, Axe TGI, Clermont-Ferrand, France
- Pôle Femme Et Enfant, Centre Hospitalier Universitaire de Clermont-Ferrand, Clermont-Ferrand, France
| | - L Boyer
- Université Clermont Auvergne, CNRS-UMR 6602, Institut Pascal, Axe TGI, Clermont-Ferrand, France
- Pôle Radiologie, Centre Hospitalier Universitaire Gabriel Montpied, Clermont-Ferrand, France
| | - D Lémery
- Université Clermont Auvergne, CNRS-UMR 6602, Institut Pascal, Axe TGI, Clermont-Ferrand, France
- Pôle Femme Et Enfant, Centre Hospitalier Universitaire de Clermont-Ferrand, Clermont-Ferrand, France
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Legrand A, Milpied B, Darrigade AS, Taieb A, Seneschal J. Efficacité surprenante d’un traitement par immunoglobulines intraveineuses pour une maladie de Darier. Ann Dermatol Venereol 2018. [DOI: 10.1016/j.annder.2018.09.323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Guyomard-Rabenirina S, Muanza B, Bastian S, Malpote E, Jestin P, Guerin M, Talarmin A, Weill FX, Legrand A, Breurec S. Salmonella enterica serovars Panama and Arechavaleta: Risk Factors for Invasive Non-Typhoidal Salmonella Disease in Guadeloupe, French West Indies. Am J Trop Med Hyg 2018; 99:584-589. [PMID: 30014811 DOI: 10.4269/ajtmh.18-0192] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
A retrospective study was conducted to identify the risk factors associated with Salmonella enterica bacteremia in infants and children in Guadeloupe, French West Indies. The 171 patients with S. enterica infection seen between 2010 and 2014 included 155 (90.6%) with acute gastroenteritis, of whom 42 (27.1%) had concomitant bacteremia, and 16 (9.4%) with primary bacteremia. Most cases (97.7%) were in infants and children with no underlying health condition. Two subspecies were recovered: enterica (N = 161, 94.2%) and houtenae (N = 10, 5.8%). All but one (serovar Typhi) were non-typhoidal Salmonella. The most common serovars were Panama (N = 57, 33.3% of isolates) and Arechavaleta (N = 28, 16.4%). Univariate analysis showed a strong association only between age > 6 months and infection with the Panama or Arechavaleta serovar (P = 0.002). The rate of resistance to all classes of antibiotics during the study period was low (< 15%); however, the detection of one extended-spectrum beta-lactamase-producing S. enterica strain highlights the need for continued monitoring of antimicrobial drug susceptibility. Infection with Panama (P < 0.001) or Arechavaleta (P < 0.001) serovar was significantly associated with bacteremia in a multivariate analysis. These serovars are probably poorly adapted to humans or are more virulent. A delay between onset of symptoms and hospital admission > 5 days (P = 0.01), vomiting (P = 0.001), and increased respiratory rate (P = 0.001) contributed independently to bacteremia in the multivariate analysis. Thus, if non-typhoidal infection is suspected, blood should be cultured and antibiotic treatment initiated in all patients who meet these criteria.
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Affiliation(s)
| | - Blandine Muanza
- Service de Pédiatrie, Centre Hospitalier Universitaire de Pointe-à-Pitre/les Abymes, Pointe-à-Pitre, France
| | - Sylvaine Bastian
- Laboratoire de Microbiologie Clinique et Environnementale, Centre Hospitalier Universitaire de Pointe-à-Pitre/les Abymes, Pointe-à-Pitre, France
| | - Edith Malpote
- Laboratoire de Microbiologie Clinique et Environnementale, Centre Hospitalier Universitaire de Pointe-à-Pitre/les Abymes, Pointe-à-Pitre, France
| | - Pauline Jestin
- Laboratoire de Microbiologie Clinique et Environnementale, Centre Hospitalier Universitaire de Pointe-à-Pitre/les Abymes, Pointe-à-Pitre, France
| | - Meggie Guerin
- Laboratoire de Microbiologie Clinique et Environnementale, Centre Hospitalier Universitaire de Pointe-à-Pitre/les Abymes, Pointe-à-Pitre, France
| | - Antoine Talarmin
- Unité Environnement et Santé, Institut Pasteur de Guadeloupe, Pointe-à-Pitre, France
| | - François-Xavier Weill
- Unité des Bactéries Pathogènes Entériques, Centre National de Référence des Escherichia coli, Shigella et Salmonella, Institut Pasteur, Paris, France
| | - Arnaud Legrand
- Direction de la Recherche Clinique et de L'innovation, Centre Hospitalier Universitaire de Nantes, Nantes, France
| | - Sebastien Breurec
- Faculté de Médecine Hyacinthe Bastaraud, Université des Antilles, Pointe-à-Pitre, France.,Unité des Bactéries Pathogènes Entériques, Centre National de Référence des Escherichia coli, Shigella et Salmonella, Institut Pasteur, Paris, France.,Unité Environnement et Santé, Institut Pasteur de Guadeloupe, Pointe-à-Pitre, France
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27
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Breurec S, Rafaï C, Onambele M, Frank T, Farra A, Legrand A, Weill FX. Serotype Distribution and Antimicrobial Resistance of Shigella Species in Bangui, Central African Republic, from 2002 to 2013. Am J Trop Med Hyg 2018; 99:283-286. [PMID: 29943713 DOI: 10.4269/ajtmh.17-0917] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Shigella is a major cause of severe diarrhea in children less than the age of 5 years in sub-Saharan Africa. The aim of this study was to describe the (sub-)serotype distribution and antimicrobial susceptibility of Shigella serogroups from Centrafrican patients with diarrhea between 2002 and 2013. We collected 443 Shigella isolates in total. The most common serogroups were Shigella flexneri (N = 243, 54.9%), followed by Shigella sonnei (N = 90, 20.3%) and Shigella dysenteriae (N = 72, 16.3%). The high diversity of (sub-)serotypes of S. flexneri and S. dysenteriae may impede the development of an efficient vaccine. Rates of resistance were high for ampicillin, chloramphenicol, tetracycline, and cotrimoxazole but low for many other antimicrobials, confirming recommendations for the use of third-generation cephalosporins (only one organism resistant) and fluoroquinolones (no resistance). However, the detection of one extended-spectrum beta-lactamase-producing Shigella organism highlights the need for continued monitoring of antimicrobial drug susceptibility.
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Affiliation(s)
- Sebastien Breurec
- Laboratoire de Bactériologie, Institut Pasteur de Bangui, Bangui, Central African Republic.,Laboratoire de Microbiologie Clinique et Environnementale, Centre Hospitalier Universitaire de Pointe-à-Pitre/les Abymes, Pointe-à-Pitre, France.,Faculté de Médecine Hyacinthe Bastaraud, Université des Antilles, Pointe-à-Pitre, France
| | - Clotaire Rafaï
- Laboratoire de Bactériologie, Institut Pasteur de Bangui, Bangui, Central African Republic
| | - Manuella Onambele
- Laboratoire de Bactériologie, Institut Pasteur de Bangui, Bangui, Central African Republic
| | - Thierry Frank
- Laboratoire de Bactériologie, Institut Pasteur de Bangui, Bangui, Central African Republic
| | - Alain Farra
- Laboratoire de Bactériologie, Institut Pasteur de Bangui, Bangui, Central African Republic
| | - Arnaud Legrand
- Délégation à la Recherche Clinique et à l'Innovation, Centre Hospitalier Universitaire de Nantes, Nantes, France
| | - François-Xavier Weill
- Unité des Bactéries Pathogènes Entériques, Centre National de Référence des Escherichia coli, Shigella et Salmonella, Institut Pasteur, Paris, France
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28
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Darrigade AS, Legrand A, Andreu N, Jacquemin C, Boniface K, Taïeb A, Seneschal J. Dual efficacy of dupilumab in a patient with concomitant atopic dermatitis and alopecia areata. Br J Dermatol 2018; 179:534-536. [PMID: 29710431 DOI: 10.1111/bjd.16711] [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: 12/14/2022]
Affiliation(s)
- A-S Darrigade
- Department of Dermatology, National Reference Center for Rare Skin Diseases, Bordeaux University Hospitals, Bordeaux, France.,INSERM U1035, BMGIC, Immuno-Dermatology, ATIP-AVENIR, Bordeaux University, Bordeaux, France
| | - A Legrand
- Department of Dermatology, National Reference Center for Rare Skin Diseases, Bordeaux University Hospitals, Bordeaux, France
| | - N Andreu
- Department of Dermatology, National Reference Center for Rare Skin Diseases, Bordeaux University Hospitals, Bordeaux, France
| | - C Jacquemin
- INSERM U1035, BMGIC, Immuno-Dermatology, ATIP-AVENIR, Bordeaux University, Bordeaux, France
| | - K Boniface
- INSERM U1035, BMGIC, Immuno-Dermatology, ATIP-AVENIR, Bordeaux University, Bordeaux, France
| | - A Taïeb
- Department of Dermatology, National Reference Center for Rare Skin Diseases, Bordeaux University Hospitals, Bordeaux, France
| | - J Seneschal
- Department of Dermatology, National Reference Center for Rare Skin Diseases, Bordeaux University Hospitals, Bordeaux, France.,INSERM U1035, BMGIC, Immuno-Dermatology, ATIP-AVENIR, Bordeaux University, Bordeaux, France
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29
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Alexandre-Gouabau MC, Moyon T, Cariou V, Antignac JP, Qannari EM, Croyal M, Soumah M, Guitton Y, David-Sochard A, Billard H, Legrand A, Boscher C, Darmaun D, Rozé JC, Boquien CY. Breast Milk Lipidome Is Associated with Early Growth Trajectory in Preterm Infants. Nutrients 2018; 10:E164. [PMID: 29385065 PMCID: PMC5852740 DOI: 10.3390/nu10020164] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 01/12/2018] [Accepted: 01/12/2018] [Indexed: 12/30/2022] Open
Abstract
Human milk is recommended for feeding preterm infants. The current pilot study aims to determine whether breast-milk lipidome had any impact on the early growth-pattern of preterm infants fed their own mother's milk. A prospective-monocentric-observational birth-cohort was established, enrolling 138 preterm infants, who received their own mother's breast-milk throughout hospital stay. All infants were ranked according to the change in weight Z-score between birth and hospital discharge. Then, we selected infants who experienced "slower" (n = 15, -1.54 ± 0.42 Z-score) or "faster" (n = 11, -0.48 ± 0.19 Z-score) growth; as expected, although groups did not differ regarding gestational age, birth weight Z-score was lower in the "faster-growth" group (0.56 ± 0.72 vs. -1.59 ± 0.96). Liquid chromatography-mass spectrometry lipidomic signatures combined with multivariate analyses made it possible to identify breast-milk lipid species that allowed clear-cut discrimination between groups. Validation of the selected biomarkers was performed using multidimensional statistical, false-discovery-rate and ROC (Receiver Operating Characteristic) tools. Breast-milk associated with faster growth contained more medium-chain saturated fatty acid and sphingomyelin, dihomo-γ-linolenic acid (DGLA)-containing phosphethanolamine, and less oleic acid-containing triglyceride and DGLA-oxylipin. The ability of such biomarkers to predict early-growth was validated in presence of confounding clinical factors but remains to be ascertained in larger cohort studies.
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Affiliation(s)
- Marie-Cécile Alexandre-Gouabau
- Institut National de la Recherche Agronomique (INRA), Unité Mixte de Recherche (UMR) 1280, Physiopathologie des Adaptations Nutritionnelles, Institut des Maladies de L'appareil Digestif (IMAD), Centre de Recherche en Nutrition Humaine Ouest (CRNH), 44093 Nantes, CEDEX 1, France.
| | - Thomas Moyon
- Institut National de la Recherche Agronomique (INRA), Unité Mixte de Recherche (UMR) 1280, Physiopathologie des Adaptations Nutritionnelles, Institut des Maladies de L'appareil Digestif (IMAD), Centre de Recherche en Nutrition Humaine Ouest (CRNH), 44093 Nantes, CEDEX 1, France.
| | - Véronique Cariou
- Statistique, Sensométrie et Chimiométrie (StatSC), Ecole Nationale Vétérinaire, Agroalimentaire et de l'Alimentation Nantes-Atlantique (ONIRIS), Institut National de la Recherche Agronomique (INRA), 44322 Nantes, France.
| | - Jean-Philippe Antignac
- L'Université Nantes Angers Le Mans (LUNAM Université), Ecole Nationale Vétérinaire, Agroalimentaire et de l'Alimentation Nantes-Atlantique (ONIRIS), Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA), USC INRA 1329, 44200 Nantes, France.
| | - El Mostafa Qannari
- Statistique, Sensométrie et Chimiométrie (StatSC), Ecole Nationale Vétérinaire, Agroalimentaire et de l'Alimentation Nantes-Atlantique (ONIRIS), Institut National de la Recherche Agronomique (INRA), 44322 Nantes, France.
| | - Mikaël Croyal
- Institut National de la Recherche Agronomique (INRA), Unité Mixte de Recherche (UMR) 1280, Physiopathologie des Adaptations Nutritionnelles, Institut des Maladies de L'appareil Digestif (IMAD), Centre de Recherche en Nutrition Humaine Ouest (CRNH), 44093 Nantes, CEDEX 1, France.
| | - Mohamed Soumah
- Statistique, Sensométrie et Chimiométrie (StatSC), Ecole Nationale Vétérinaire, Agroalimentaire et de l'Alimentation Nantes-Atlantique (ONIRIS), Institut National de la Recherche Agronomique (INRA), 44322 Nantes, France.
| | - Yann Guitton
- L'Université Nantes Angers Le Mans (LUNAM Université), Ecole Nationale Vétérinaire, Agroalimentaire et de l'Alimentation Nantes-Atlantique (ONIRIS), Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA), USC INRA 1329, 44200 Nantes, France.
| | - Agnès David-Sochard
- Institut National de la Recherche Agronomique (INRA), Unité Mixte de Recherche (UMR) 1280, Physiopathologie des Adaptations Nutritionnelles, Institut des Maladies de L'appareil Digestif (IMAD), Centre de Recherche en Nutrition Humaine Ouest (CRNH), 44093 Nantes, CEDEX 1, France.
| | - Hélène Billard
- Institut National de la Recherche Agronomique (INRA), Unité Mixte de Recherche (UMR) 1280, Physiopathologie des Adaptations Nutritionnelles, Institut des Maladies de L'appareil Digestif (IMAD), Centre de Recherche en Nutrition Humaine Ouest (CRNH), 44093 Nantes, CEDEX 1, France.
| | - Arnaud Legrand
- Faculté de Médicine de Nantes, Centre Hospitalo-Universitaire Hôtel-Dieu (CHU), 44093 Nantes, France.
| | - Cécile Boscher
- Faculté de Médicine de Nantes, Centre Hospitalo-Universitaire Hôtel-Dieu (CHU), 44093 Nantes, France.
| | - Dominique Darmaun
- Institut National de la Recherche Agronomique (INRA), Unité Mixte de Recherche (UMR) 1280, Physiopathologie des Adaptations Nutritionnelles, Institut des Maladies de L'appareil Digestif (IMAD), Centre de Recherche en Nutrition Humaine Ouest (CRNH), 44093 Nantes, CEDEX 1, France.
- Faculté de Médicine de Nantes, Centre Hospitalo-Universitaire Hôtel-Dieu (CHU), 44093 Nantes, France.
| | - Jean-Christophe Rozé
- Institut National de la Recherche Agronomique (INRA), Unité Mixte de Recherche (UMR) 1280, Physiopathologie des Adaptations Nutritionnelles, Institut des Maladies de L'appareil Digestif (IMAD), Centre de Recherche en Nutrition Humaine Ouest (CRNH), 44093 Nantes, CEDEX 1, France.
- Faculté de Médicine de Nantes, Centre Hospitalo-Universitaire Hôtel-Dieu (CHU), 44093 Nantes, France.
| | - Clair-Yves Boquien
- Institut National de la Recherche Agronomique (INRA), Unité Mixte de Recherche (UMR) 1280, Physiopathologie des Adaptations Nutritionnelles, Institut des Maladies de L'appareil Digestif (IMAD), Centre de Recherche en Nutrition Humaine Ouest (CRNH), 44093 Nantes, CEDEX 1, France.
- European Milk Bank Association (EMBA), 20126 Milan, Italy.
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Legrand A, Frondas A, Aubret F, Corre A, Flamant C, Simon L, Desrobert C, Rozé JC. Randomised controlled trial shows that co-bedding twins may reduce birthweight recovery delay, parenteral nutrition weaning time and hospitalisation. Acta Paediatr 2017; 106:2055-2059. [PMID: 28436200 DOI: 10.1111/apa.13885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 03/06/2017] [Accepted: 04/19/2017] [Indexed: 11/30/2022]
Affiliation(s)
- Arnaud Legrand
- Women's and Children's Clinical Investigation Center (CIC FEA 1413); Nantes University Hospital; Nantes France
| | - Anne Frondas
- Department of Neonatal Medicine; Nantes University Hospital; Nantes France
| | - Fabien Aubret
- Department of Evolutive Ecology USR 2936; CNRS USR 2936; France
| | - Anne Corre
- Department of Neonatal Medicine; Nantes University Hospital; Nantes France
| | - Cyril Flamant
- Department of Neonatal Medicine; Nantes University Hospital; Nantes France
| | - Laure Simon
- Department of Neonatal Medicine; Nantes University Hospital; Nantes France
| | - Clothilde Desrobert
- Department of Neonatal Medicine; Marseille University Hospital; Marseille France
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Ploteau S, Cano-Sancho G, Volteau C, Legrand A, Vénisseau A, Vacher V, Marchand P, Le Bizec B, Antignac JP. Associations between internal exposure levels of persistent organic pollutants in adipose tissue and deep infiltrating endometriosis with or without concurrent ovarian endometrioma. Environ Int 2017; 108:195-203. [PMID: 28869876 DOI: 10.1016/j.envint.2017.08.019] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 08/29/2017] [Accepted: 08/29/2017] [Indexed: 05/26/2023]
Abstract
Endometriosis is a gynaecological disease characterized by the presence of ectopic endometrial tissue. Histologically, it appears as different sub-types, being peritoneal endometriosis, ovarian endometrioma (OvE) and deep infiltrating endometriosis (DIE), which are of major relevance due to their varying clinical presentations. A number of persistent organic pollutants (POPs) have been associated with the onset of endometriosis, yet the overall set of existing studies remains fairly divergent. In this preliminary case-control study we aimed to assess the potential associations between the internal exposure to POPs and the presence of DIE with or without concurrent OvE. Adipose tissue and serum samples were collected from surgically confirmed cases (n=55) and controls (n=44) enrolled during 2013 and 2015 in Pays de la Loire, France. Targeted pollutants (76 historical or more emerging POPs including dioxins, polychlorobiphenyls (PCB), polybrominated diphenyl ethers (PBDEs), polybrominated biphenyls (PBBs), hexabromocyclododecanes (HBCDs) and organochlorine pesticides (OCPs) were quantified by chromatography coupled to mass spectrometry. Odds ratios (ORs) and 95% confidence intervals (CI) were estimated from unconditional logistic regression adjusted for known confounding variables. The results showed significant associations between DIE and adipose tissue levels of 1.2.3.7.8 - PeCDD, OCDF, PCB 105, 114, 118 and 123, PBDE 183, PBB 153, and several OCPs including trans‑nonachlor, cis‑heptachlor epoxide, dieldrin, β-hexachlorocyclohexane and hexachlorobenzene. The largest associations were observed for OCDF followed by cis‑heptachlor epoxide, exhibiting adjusted ORs (95% CI) of 5.42 (2.73-12.85) and 5.36 (2.44-14.84) per 1-SD increase, respectively. The stratified analysis comparing both disease sub-types suggested that adipose tissue exposure markers may be more associated with DIE concurrent with OvE, however these results need to be confirmed in a larger population.
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Affiliation(s)
- Stéphane Ploteau
- LUNAM Université, Oniris, UMR 1329 Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA), Nantes, France; Service de gynécologie-obstétrique, CIC FEA, Hôpital Mère Enfant, CHU Hôtel Dieu, Nantes, France
| | - German Cano-Sancho
- LUNAM Université, Oniris, UMR 1329 Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA), Nantes, France; INRA Centre Angers-Nantes, Nantes F-44307, France.
| | | | - Arnaud Legrand
- Service de gynécologie-obstétrique, CIC FEA, Hôpital Mère Enfant, CHU Hôtel Dieu, Nantes, France
| | - Anaïs Vénisseau
- LUNAM Université, Oniris, UMR 1329 Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA), Nantes, France
| | - Vincent Vacher
- LUNAM Université, Oniris, UMR 1329 Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA), Nantes, France
| | - Philippe Marchand
- LUNAM Université, Oniris, UMR 1329 Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA), Nantes, France
| | - Bruno Le Bizec
- LUNAM Université, Oniris, UMR 1329 Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA), Nantes, France
| | - Jean-Philippe Antignac
- LUNAM Université, Oniris, UMR 1329 Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA), Nantes, France; INRA Centre Angers-Nantes, Nantes F-44307, France
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Gras-Le Guen C, Legrand A, Caquard M, Micaelli X, Picherot G, Lacroix S, Volteau C, Launay E. Chronically ill adolescents are also incompletely vaccinated: A cross-sectional study in France. Vaccine 2017; 35:4707-4712. [DOI: 10.1016/j.vaccine.2017.07.042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 07/06/2017] [Accepted: 07/13/2017] [Indexed: 11/25/2022]
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Gras-Le Guen C, Caille A, Launay E, Boscher C, Godon N, Savagner C, Descombes E, Gremmo-Feger G, Pladys P, Saillant D, Legrand A, Caillon J, Barbarot S, Roze JC, Giraudeau B. Dry Care Versus Antiseptics for Umbilical Cord Care: A Cluster Randomized Trial. Pediatrics 2017; 139:peds.2016-1857. [PMID: 28008096 DOI: 10.1542/peds.2016-1857] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/10/2016] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND AND OBJECTIVES In developed countries, where omphalitis has become rare and related mortality nil, benefits of antiseptic use in umbilical cord care have not been demonstrated. We aimed to assess the noninferiority of dry care compared with antiseptics in France where antiseptic use is widespread. METHODS We conducted a noninferiority, cluster-randomized, 2-period crossover trial, in 6 French university maternity units including all infants born after 36 weeks' gestation. Maternity units were randomly assigned to provide either their usual antiseptic care or a dry care umbilical cord method for a 4-month period, and then units switched to the alternate cord cleansing method for a 4-month period. The primary outcome was neonatal omphalitis, adjudicated by an independent blinded committee based on all available photographs, clinical, and bacteriological data. We used a noninferiority margin of 0.4%. Analysis was performed per protocol and by intention to treat. RESULTS Among 8698 participants, omphalitis occurred in 3 of 4293 (0.07%) newborns in the dry care group and in none of the 4404 newborns in the antiseptic care group (crude difference: 0.07; 95% confidence interval: -0.03 to 0.21). Late neonatal infection, parental appreciation of difficulty in care, and time to separation of the cord were not significantly different between the 2 groups. CONCLUSIONS Dry cord was noninferior to the use of antiseptics in preventing omphalitis in full-term newborns in a developed country. Antiseptic use in umbilical cord care is therefore unnecessary, constraining, and expensive in high-income countries and may be replaced by dry care.
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Affiliation(s)
- Christèle Gras-Le Guen
- Service de Pédiatrie, .,National Institutes of Health and Medical Research, CIC 1413, and.,EA 3628, Thérapeutiques anti infectieuses, Faculté de médecine, Université de Nantes, Nantes, France
| | - Agnès Caille
- National Institutes of Health and Medical Research, CIC 1415, Hôpital Bretonneau, and
| | - Elise Launay
- Service de Pédiatrie.,National Institutes of Health and Medical Research, CIC 1413, and
| | - Cécile Boscher
- Service de Pédiatrie.,National Institutes of Health and Medical Research, CIC 1413, and
| | | | - Christophe Savagner
- Pédiatrie de Maternité, Centre Hospitalier Universitaire d'Angers, Angers, France
| | - Emmanuelle Descombes
- Pédiatrie de Maternité, Centre Hospitalier Universitaire de Poitiers, Poitiers, France
| | - Gisèle Gremmo-Feger
- Pédiatrie de Maternité, Centre Hospitalier Universitaire Brest, Brest France; and
| | - Patrick Pladys
- Service de pédiatrie-néonatologie et maternité, Centre Hospitalier Universitaire de Rennes, and INSERM CIC 1414, Rennes, France
| | - Dominique Saillant
- Pédiatrie de Maternité, Centre Hospitalier Universitaire de Tours, Tours, France
| | - Arnaud Legrand
- National Institutes of Health and Medical Research, CIC 1413, and
| | - Jocelyne Caillon
- EA 3628, Thérapeutiques anti infectieuses, Faculté de médecine, Université de Nantes, Nantes, France
| | - Sébastien Barbarot
- Service de Dermatologie, Centre Hospitalier Universitaire de Nantes, Nantes, France
| | - Jean Christophe Roze
- Service de Pédiatrie.,National Institutes of Health and Medical Research, CIC 1413, and
| | - Bruno Giraudeau
- National Institutes of Health and Medical Research, CIC 1415, Hôpital Bretonneau, and
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Dhainaut J, Avci-Camur C, Troyano J, Legrand A, Canivet J, Imaz I, Maspoch D, Reinsch H, Farrusseng D. Systematic study of the impact of MOF densification into tablets on textural and mechanical properties. CrystEngComm 2017. [DOI: 10.1039/c7ce00338b] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Densification process of MOF powders (HKUST-1, UiO-66, UiO-66-NH2, and UiO-67) into mechanically resistant pellets with maintained microporosity and enhanced volumetric uptake.
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Affiliation(s)
- J. Dhainaut
- Université de Lyon
- Université Claude Bernard Lyon 1
- 69626 Villeurbanne Cedex
- France
| | - C. Avci-Camur
- Catalan Institute of Nanoscience and Nanotechnology (ICN2)
- CSIC and the Barcelona Institute of Science and Technology
- 08193 Barcelona
- Spain
| | - J. Troyano
- Catalan Institute of Nanoscience and Nanotechnology (ICN2)
- CSIC and the Barcelona Institute of Science and Technology
- 08193 Barcelona
- Spain
| | - A. Legrand
- Catalan Institute of Nanoscience and Nanotechnology (ICN2)
- CSIC and the Barcelona Institute of Science and Technology
- 08193 Barcelona
- Spain
| | - J. Canivet
- Université de Lyon
- Université Claude Bernard Lyon 1
- 69626 Villeurbanne Cedex
- France
| | - I. Imaz
- Catalan Institute of Nanoscience and Nanotechnology (ICN2)
- CSIC and the Barcelona Institute of Science and Technology
- 08193 Barcelona
- Spain
| | - D. Maspoch
- Catalan Institute of Nanoscience and Nanotechnology (ICN2)
- CSIC and the Barcelona Institute of Science and Technology
- 08193 Barcelona
- Spain
- ICREA
| | | | - D. Farrusseng
- Université de Lyon
- Université Claude Bernard Lyon 1
- 69626 Villeurbanne Cedex
- France
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Legrand A. [Treatment of stable COPD : GOLD 2017 and the associations…]. Rev Med Brux 2017; 38:307-312. [PMID: 28981234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
GOLD 2017 Report highlights the importance of patient symptoms and exacerbation risks in influencing some therapeutic decisions for individualized patient care. Assessment of the severity of airway obstruction is now separated from the " ABCD " groups but remains a key step for the diagnosis, prognostication and nonpharmacological therapies of COPD patients. Inhaled long-acting bronchodilators, alone or in combination, have a central role in the treatment of COPD patients. Their prolonged action allows a significant improvement not only of FEV1, but also of dyspnoea and health status. A clinically important effect was more frequently reached with LABA+LAMA combination than with either medication alone. LAMAs have a greater effect on exacerbation reduction compared to LABAs and LABA+LAMA combination reduces exacerbations compared to monotherapy or LABA+ICS combination. As regular treatment with ICS increases the risk of pneumonia, LABA+ICS combination is not a primary choice excepted in selected cortico-sensitive patients. When appropriate, withdrawal of ICS is achievable without significant harm using LABA+LAMA combination. Studies determining the precise place of LABA+LAMA+ICS combination in the treatment strategy are underway.
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Affiliation(s)
- A Legrand
- Service de Physiologie et Réadaptation respiratoire, Université de Mons
- Service de Pneumologie, Hôpital Erasme, ULB
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Liet JM, Barrière F, Gaillard-Le Roux B, Bourgoin P, Legrand A, Joram N. Physiological effects of invasive ventilation with neurally adjusted ventilatory assist (NAVA) in a crossover study. BMC Pediatr 2016; 16:180. [PMID: 27821162 PMCID: PMC5100099 DOI: 10.1186/s12887-016-0717-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 10/25/2016] [Indexed: 12/19/2022] Open
Abstract
Background Neurally Adjusted Ventilatory Assist (NAVA) is a mode of assisted mechanical ventilation that delivers inspiratory pressure proportionally to the electrical activity of the diaphragm. To date, no pediatric study has focused on the effects of NAVA on hemodynamic parameters. This physiologic study with a randomized cross-over design compared hemodynamic parameters when NAVA or conventional ventilation (CV) was applied. Methods After a baseline period, infants received NAVA and CV in a randomized order during two consecutive 30-min periods. During the last 10 min of each period, respiratory and hemodynamic parameters were collected. No changes in PEEP, FiO2, sedation or inotropic doses were allowed during these two periods. The challenge was to keep minute volumes constant, with no changes in blood CO2 levels and in pH that may affect the results. Results Six infants who had undergone cardiac surgery (mean age 7.8 ± 4.1 months) were studied after parental consent. Four of them had low central venous oxygen saturation (ScvO2 < 65 %). The ventilatory settings resulted in similar minute volumes (1.7 ± 0.4 vs. 1.6 ± 0.6 ml/kg, P = 0.67) and in similar tidal volumes respectively with NAVA and with CV. There were no statistically significant differences on blood pH levels between the two modes of ventilation (7.32 ± 0.02 vs. 7.32 ± 0.04, P = 0.34). Ventilation with NAVA delivered lower peak inspiratory pressures than with CV: -32.7 % (95 % CI: -48.2 to –17.1 %, P = 0.04). With regard to hemodynamics, systolic arterial pressures were higher using NAVA: +8.4 % (95 % CI: +3.3 to +13.6 %, P = 0.03). There were no statistically significant differences on cardiac index between the two modes of ventilation. However, all children with a low baseline ScvO2 (<65 %) tended to increase their cardiac index with NAVA compared to CV: 2.03 ± 0.30 vs. 1.91 ± 0.39 L/min.m2 (median ± interquartile, P = 0.07). Conclusions This pilot study raises the hypothesis that NAVA could have beneficial effects on hemodynamics in children when compared to a conventional ventilatory mode that delivered identical PEEP and similar minute volumes. Trial registration ClinicalTrials.gov Identifier: NCT01490710. Date of registration: December 7, 2011.
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Affiliation(s)
- Jean-Michel Liet
- Pediatric Intensive Care Unit, Hôpital Femme-Enfant-Adolescent, the University Hospital Center of Nantes (CHU), 38 bd Jean-Monnet, 44093, Nantes, France.
| | - François Barrière
- Pediatric Intensive Care Unit, Hôpital Femme-Enfant-Adolescent, the University Hospital Center of Nantes (CHU), 38 bd Jean-Monnet, 44093, Nantes, France
| | - Bénédicte Gaillard-Le Roux
- Pediatric Intensive Care Unit, Hôpital Femme-Enfant-Adolescent, the University Hospital Center of Nantes (CHU), 38 bd Jean-Monnet, 44093, Nantes, France
| | - Pierre Bourgoin
- Pediatric Intensive Care Unit, Hôpital Femme-Enfant-Adolescent, the University Hospital Center of Nantes (CHU), 38 bd Jean-Monnet, 44093, Nantes, France
| | - Arnaud Legrand
- Pediatric Intensive Care Unit, Hôpital Femme-Enfant-Adolescent, the University Hospital Center of Nantes (CHU), 38 bd Jean-Monnet, 44093, Nantes, France.,CIC-INSERM 1413, University of Nantes, Nantes, France
| | - Nicolas Joram
- Pediatric Intensive Care Unit, Hôpital Femme-Enfant-Adolescent, the University Hospital Center of Nantes (CHU), 38 bd Jean-Monnet, 44093, Nantes, France
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Antignac JP, Main KM, Virtanen HE, Boquien CY, Marchand P, Venisseau A, Guiffard I, Bichon E, Wohlfahrt-Veje C, Legrand A, Boscher C, Skakkebæk NE, Toppari J, Le Bizec B. Country-specific chemical signatures of persistent organic pollutants (POPs) in breast milk of French, Danish and Finnish women. Environ Pollut 2016; 218:728-738. [PMID: 27521295 DOI: 10.1016/j.envpol.2016.07.069] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [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: 03/27/2016] [Revised: 07/28/2016] [Accepted: 07/29/2016] [Indexed: 06/06/2023]
Abstract
The present study compares concentrations and chemical profiles of an extended range of persistent organic pollutants (dioxins, polychlorobiphenyls, brominated flame retardants and organochlorine pesticides) in breast milk samples from French (n = 96), Danish (n = 438) and Finnish (n = 22) women. Median exposure levels observed in French women (WHO-TEQ2005 PCDD/F = 6.1 pg/g l.w., WHO-TEQ2005 dl-PCB = 4.3 pg/g l.w., sum of 6 ndl-PCB = 85.2 ng/g l.w., sum of 7 i-PBDE = 1.5 ng/g l.w.) appeared overall lower than in Danish and Finnish women for all examined POPs, except for α-HBCD (2-fold higher level at 0.6 ng/g l.w.). Furthermore, the observed exposure levels of dioxins and PCBs were higher in Danish women (WHO-TEQ2005 PCDD/F = 13.2 pg/g l.w., WHO-TEQ2005 dl-PCB = 6.6 pg/g l.w., sum of 6 ndl-PCB = 162.8 ng/g l.w.) compared to Finnish women (WHO-TEQ2005 PCDD/F = 9.0 pg/g l.w., WHO-TEQ2005 dl-PCB = 4.6 pg/g l.w., sum of 6 ndl-PCB = 104.0 ng/g l.w.), whereas the concentrations of PBDEs were similar for Danish and Finnish women (sum of 7 i-PBDE = 4.9 and 5.2 ng/g l.w. respectively). The organochlorine (OC) pesticide contamination profile, determined in a subset of French samples, was dominated by p,p'-DDE (56.6%), followed by β-HCH (14.2%), HCB (9.7%) and dieldrin (5.2%), while other compounds were only minor contributors (<5%). The three countries appeared to be discriminated by the observed contamination patterns of the PCDD/F versus PCB, and the 1,2,3,6,7,8-HxCDD versus 1,2,3,4,7,8-HxCDD ratios, in addition to the relative contributions of specific congeners to the contamination profile (PCBs #118 and #156, PBDEs #28, #47, #99 and #153). In conclusion, unique chemical signatures were observed for each country on the basis of some POP congeners. Future biomonitoring studies will need to consider the high variability of individual exposure profiles in relation to multiple exposure sources but also physiological and metabolic differences.
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Affiliation(s)
- J P Antignac
- LUNAM Université, Oniris, USC 1329 Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA), Nantes, France; INRA, Nantes, F-44307, France.
| | - K M Main
- Department of Growth and Reproduction, Faculty of Medical and Health Sciences, University Hospital of Copenhagen (Rigshospitalet), Copenhagen, Denmark
| | - H E Virtanen
- Department of Physiology, Institute of Biomedicine, University of Turku, Finland
| | - C Y Boquien
- UMR 1280 PHAN Physiologie des Adaptations Nutritionnelles, Nantes, France; INRA, Nantes, F-44307, France; CRNH Ouest, 44093, Nantes, France
| | - P Marchand
- LUNAM Université, Oniris, USC 1329 Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA), Nantes, France
| | - A Venisseau
- LUNAM Université, Oniris, USC 1329 Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA), Nantes, France
| | - I Guiffard
- LUNAM Université, Oniris, USC 1329 Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA), Nantes, France
| | - E Bichon
- LUNAM Université, Oniris, USC 1329 Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA), Nantes, France
| | - C Wohlfahrt-Veje
- Department of Growth and Reproduction, Faculty of Medical and Health Sciences, University Hospital of Copenhagen (Rigshospitalet), Copenhagen, Denmark
| | - A Legrand
- Centre d'investigation Clinique mère-enfant, Service de Néonatologie et de Réanimation Pédiatrique, Hôpital Mère-Enfant, CHU de Nantes, France
| | - C Boscher
- Centre d'investigation Clinique mère-enfant, Service de Néonatologie et de Réanimation Pédiatrique, Hôpital Mère-Enfant, CHU de Nantes, France
| | - Niels E Skakkebæk
- Department of Growth and Reproduction, Faculty of Medical and Health Sciences, University Hospital of Copenhagen (Rigshospitalet), Copenhagen, Denmark
| | - J Toppari
- Department of Physiology, Institute of Biomedicine, University of Turku, Finland; Department of Pediatrics, Turku University Hospital, Turku, Finland
| | - B Le Bizec
- LUNAM Université, Oniris, USC 1329 Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA), Nantes, France
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Goisbault M, Legrand A, Bonnet D, Tounian P, Dubern B. Atteinte hépatique et lésions vasculaires précoces chez l’enfant obèse. NUTR CLIN METAB 2016. [DOI: 10.1016/j.nupar.2016.09.096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Mazzella JM, Frank M, Collignon P, Langeois M, Legrand A, Jeunemaitre X, Albuisson J. Phenotypic variability and diffuse arterial lesions in a family with Loeys-Dietz syndrome type 4. Clin Genet 2016; 91:458-462. [PMID: 27440102 DOI: 10.1111/cge.12838] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 07/18/2016] [Accepted: 07/18/2016] [Indexed: 01/20/2023]
Abstract
Syndromic thoracic aortic aneurysm and dissection (TAAD) can suggest Marfan, vascular Ehlers-Danlos or Loeys-Dietz (LDS) syndromes. Several of the TGFβ-pathway-related genes predispose to different types of LDS. Heterozygous loss-of-function variations in TGFβ2 have been shown to be responsible for a novel form of syndromic TAAD associated with an impairment of the mitral valve and cerebrovascular disease called Loeys-Dietz syndrome type 4 (LDS4). We report the clinical characterization of a LDS4 French family with sudden deaths and diffuse vascular lesions, caused by a frameshift mutation in TGFβ2 gene: c.[995del]; p.(Leu332TrpfsTer27). Clinical characteristics include aneurysm of aortic sinus, skeletal and cutaneous features compatible with a syndromic form of TAAD (joint hypermobility, scoliosis, and easy bruises), intracranial aneurysms and rare mitral valve involvement. Iliac aneurysms, systemic medium caliber arteries dissections, and mild developmental delay were present in the family, and have not been described in LDS4. Phenotypic variability was also an important finding, including absence of clinical vascular events at advanced age in one case. Our data expand the phenotype of LDS4: we confirm that TGFβ2 mutations are responsible for true LDS syndrome with non-specific features of connective tissue disorders and diffuse vascular lesions. Adapted vascular follow up and prevention has to be proposed for these patients.
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Affiliation(s)
- J-M Mazzella
- Hôpital Européen Georges Pompidou, Centre de Référence des Maladies Vasculaires Rares, Hôpitaux de Paris, Paris, France
| | - M Frank
- Hôpital Européen Georges Pompidou, Centre de Référence des Maladies Vasculaires Rares, Hôpitaux de Paris, Paris, France
| | - P Collignon
- Centre Hospitalier Intercommunal Toulon-La Seyne-sur-Mer, Service de Génétique Médicale, Toulon, France
| | - M Langeois
- Centre de Référence National Syndromes de Marfan et apparentés, Hôpitaux de Paris, Hôpital Bichat-Claude-Bernard, Paris, France
| | - A Legrand
- Hôpital Européen Georges Pompidou, Centre de Référence des Maladies Vasculaires Rares, Hôpitaux de Paris, Paris, France.,Sorbonne Paris Cité, Université Paris Descartes, Paris, France.,Paris Cardiovascular Research Centre, INSERM, U970, Paris, France
| | - X Jeunemaitre
- Hôpital Européen Georges Pompidou, Centre de Référence des Maladies Vasculaires Rares, Hôpitaux de Paris, Paris, France.,Sorbonne Paris Cité, Université Paris Descartes, Paris, France.,Paris Cardiovascular Research Centre, INSERM, U970, Paris, France
| | - J Albuisson
- Hôpital Européen Georges Pompidou, Centre de Référence des Maladies Vasculaires Rares, Hôpitaux de Paris, Paris, France.,Sorbonne Paris Cité, Université Paris Descartes, Paris, France.,Paris Cardiovascular Research Centre, INSERM, U970, Paris, France
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Vargas-Poussou R, Lepottier N, Roncelin I, Simian C, Venisse A, Boccio V, Legrand A, Garcia-Castaño A, Zennaro MC, Jeunemaitre X. Mise en place du diagnostic moléculaire de tubulopathies rénales héréditaires par un panel NGS. Arch Pediatr 2016. [DOI: 10.1016/j.arcped.2016.03.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Floris I, Billard H, Boquien CY, Joram-Gauvard E, Simon L, Legrand A, Boscher C, Rozé JC, Bolaños-Jiménez F, Kaeffer B. MiRNA Analysis by Quantitative PCR in Preterm Human Breast Milk Reveals Daily Fluctuations of hsa-miR-16-5p. PLoS One 2015; 10:e0140488. [PMID: 26474056 PMCID: PMC4608744 DOI: 10.1371/journal.pone.0140488] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 09/25/2015] [Indexed: 02/03/2023] Open
Abstract
Background and Aims Human breast milk is an extremely dynamic fluid containing many biologically-active components which change throughout the feeding period and throughout the day. We designed a miRNA assay on minimized amounts of raw milk obtained from mothers of preterm infants. We investigated changes in miRNA expression within month 2 of lactation and then over the course of 24 hours. Materials and Methods Analyses were performed on pooled breast milk, made by combining samples collected at different clock times from the same mother donor, along with time series collected over 24 hours from four unsynchronized mothers. Whole milk, lipids or skim milk fractions were processed and analyzed by qPCR. We measured hsa-miR-16-5p, hsa-miR-21-5p, hsa-miR-146-5p, and hsa-let-7a, d and g (all -5p). Stability of miRNA endogenous controls was evaluated using RefFinder, a web tool integrating geNorm, Normfinder, BestKeeper and the comparative ΔΔCt method. Results MiR-21 and miR-16 were stably expressed in whole milk collected within month 2 of lactation from four mothers. Analysis of lipids and skim milk revealed that miR-146b and let-7d were better references in both fractions. Time series (5H-23H) allowed the identification of a set of three endogenous reference genes (hsa-let-7d, hsa-let-7g and miR-146b) to normalize raw quantification cycle (Cq) data. We identified a daily oscillation of miR-16-5p. Perspectives Our assay allows exploring miRNA levels of breast milk from mother with preterm baby collected in time series over 48–72 hours.
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Affiliation(s)
- Ilaria Floris
- UMR-1280, INRA, University of Nantes, Physiologie des Adaptations Nutritionnelles, Nantes, France
- * E-mail: (IF); (BK)
| | - Hélène Billard
- UMR-1280, INRA, University of Nantes, Physiologie des Adaptations Nutritionnelles, Nantes, France
| | - Clair-Yves Boquien
- UMR-1280, INRA, University of Nantes, Physiologie des Adaptations Nutritionnelles, Nantes, France
| | | | - Laure Simon
- University of Nantes, Hospital of Mother and Child, Nantes, France
| | - Arnaud Legrand
- University of Nantes, Hospital of Mother and Child, Nantes, France
| | - Cécile Boscher
- University of Nantes, Hospital of Mother and Child, Nantes, France
| | - Jean-Christophe Rozé
- UMR-1280, INRA, University of Nantes, Physiologie des Adaptations Nutritionnelles, Nantes, France
- University of Nantes, Hospital of Mother and Child, Nantes, France
| | | | - Bertrand Kaeffer
- UMR-1280, INRA, University of Nantes, Physiologie des Adaptations Nutritionnelles, Nantes, France
- * E-mail: (IF); (BK)
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Vanderplanck C, Tassin A, Ansseau E, Lancelot C, Derenne A, Conotte S, Dudome V, Leroy B, Wilton S, Laoudj-Chenivesse D, Wattiez R, Legrand A, Belayew A, Coppée F. Antisense strategies targeting DUX4 and DUX4c as therapeutic approaches for facioscapulohumeral muscular dystrophy (FSHD). Neuromuscul Disord 2015. [DOI: 10.1016/j.nmd.2015.06.447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Becker S, Vrignaud B, Levieux K, Henaff F, Pimmel J, Legrand A, Gras-Le Guen C, Launay E. CO-53 – Étude DOLOGESTE: Évaluation de la douleur aigue aux urgences pédiatriques. Arch Pediatr 2015. [DOI: 10.1016/s0929-693x(15)30154-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Legrand A, Moissette A, Hureau M, Casale S, Massiani P, Vezin H, Mamede AS, Batonneau-Gener I. Electron transfers in a TiO2-containing MOR zeolite: synthesis of the nanoassemblies and application using a probe chromophore molecule. Phys Chem Chem Phys 2015; 16:13145-55. [PMID: 24866869 DOI: 10.1039/c4cp01543f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New assemblies constituted by a microporous matrix of mordenite (MOR) zeolite on which TiO2 nanoclusters are deposited were synthesized using ionic oxalate complexes and TiCl3 titanium precursors. The samples were used to investigate the transfer of electrons produced by spontaneous or photo-induced ionization of a guest molecule (t-stilbene, t-St) occluded in the porous volume towards the conduction band of a conductive material placed nearby, in the pores or at least close to their entrance. The reaction mechanisms were compared in these Ti-rich solids and in a Ti-free mordenite sample. The characterization by XRD, N2 physisorption, TEM, XPS and DRIFT spectroscopy of the supramolecular TiO2/MOR systems before t-St adsorption showed the preservation of the crystalline structure after Ti addition and thermal activation treatments. They also revealed that titanium is mainly located at the external surface of the zeolite grains, in the form of highly dispersed and/or aggregated anatase. After incorporation of the guest molecule in the new assemblies, diffuse reflectance UV-visible and EPR spectroscopies indicate that the electron transfer processes are similar with and without TiO2 but strongly stabilized t-St˙(+) radicals are detected in the TiO2-MOR samples whereas such species were never detected earlier in TiO2-free mordenite using these techniques. The stabilization process is found to be more efficient in the sample prepared with TiCl3 as the precursor than with titanium oxalates. It is proposed that the proximity of TiO2 with the formed t-St˙(+) radicals provokes the stabilization of the radical through capture of the ejected electron by the semi-conductor and that confinement effects can also play a role.
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Affiliation(s)
- A Legrand
- LASIR, UMR 8516, Université Lille 1, Bât C8, 59655 Villeneuve d'Ascq cedex, France.
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Deceuninck Y, Bichon E, Marchand P, Boquien CY, Legrand A, Boscher C, Antignac JP, Le Bizec B. Determination of bisphenol A and related substitutes/analogues in human breast milk using gas chromatography-tandem mass spectrometry. Anal Bioanal Chem 2015; 407:2485-97. [PMID: 25627788 DOI: 10.1007/s00216-015-8469-9] [Citation(s) in RCA: 100] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 12/18/2014] [Accepted: 01/06/2015] [Indexed: 11/29/2022]
Abstract
Bisphenol A (BPA) is an industrial chemical widely used in the production of polycarbonate and epoxy resins. Identified as an endocrine-disrupting chemical (EDC), BPA is a matter of existing or ongoing restrictive regulations and then is increasingly being replaced by other analogues used as BPA's substitutes. Human biomonitoring studies focusing on both BPA and emerging related analogues consequently appear as a requirement either for documenting the efficiency of regulatory actions toward BPA and for fuelling incoming risk assessment studies toward BPA's substitutes. In particular, the increasing concern about the late effects consecutive to early exposures naturally identify human breast milk as a target biological matrix of interest for priority exposure assessment focused on critical sub-populations such as pregnant women, fetuses, and/or newborns. In this context, an accurate and sensitive analytical method based on gas chromatography coupled to tandem mass spectrometry (GC-MS/MS) was developed for the quantification of 18 "BPA-like" compounds in breast milk samples at trace levels (<0.05 μg kg(-1)). The method includes a preliminary protein precipitation step followed by two successive solid-phase extraction (SPE) stages. Quantification of the targeted compounds was achieved according to the isotopic dilution method using (13)C12-BPA as internal standard. The method was validated according to current EU guidelines and criteria. Linearity (R (2)) was better than 0.99 for each molecule within the concentration range 0-5 μg kg(-1). The detection and quantification limits ranged from 0.001 to 0.030 μg kg(-1) and from 0.002 to 0.050 μg kg(-1), respectively. The analytical method was successfully applied to the first set of human breast milk samples (n = 30) originating from French women in the Region Pays-de-la-Loire. The measured levels of BPA were found in the <LOQ-1.16 μg kg(-1) range. BPS was detected in only one sample at 0.23 μg kg(-1), while the other targeted molecules were not detected. The proposed methodology then appeared suitable for the further monitoring of a potential decrease of BPA levels and an increase of other BPA analogue levels as reflective of the expected incoming trend in terms of human exposure.
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Affiliation(s)
- Yoann Deceuninck
- LUNAM Université, Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA), USC 1329, Oniris, 44307, Nantes, France,
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Duprez F, Jauer J, Cuvelier G, Rasson A, Mashayecki S, Legrand A. Effet du pattern respiratoire sur la FiO2 au cours de l’oxygénothérapie. Rev Mal Respir 2015. [DOI: 10.1016/j.rmr.2014.10.500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Sicard M, Caillon J, Launay E, Boivin M, Legrand A, Rozé J, Gras-Le Guen C. SFP CO-71 - PCR automatisée et identification des infections néonatales à Streptococcus agalactiae. Arch Pediatr 2014. [DOI: 10.1016/s0929-693x(14)71909-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Legrand A, Doré-Mazars K, Pia Bucci M, Lemoine C, Nougier V, Olivier I. Interférences entre la réalisation de tâches oculomotrices et le contrôle postural chez l’enfant. Neurophysiol Clin 2012. [DOI: 10.1016/j.neucli.2012.09.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Durand J, Legrand A, Tort M, Thiney A, Michniewicz RJ, Coulon A, Aubret F. Effects of geographic isolation on anti-snakes responses in the wall lizard, Podarcis muralis. AMPHIBIA-REPTILIA 2012. [DOI: 10.1163/156853812x636448] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Alteration in anti-predatory behaviour following geographic isolation has been observed in a number of taxa. Such alteration was attributed to the effect of relaxed selection in the novel environment, reinforced by the cost of anti-predatory behaviours. We studied aspects of anti-snake behaviour in 987 adult and juvenile wall lizards Podarcis muralis from two mainland areas (heavy snake predatory pressure) and two islands (low snake predatory pressure), isolated from the mainland 5000 and 7000 years ago. We conducted a scented retreat site choice experiment using the odours of five different snake species (saurophagous, piscivorous or generalist feeder). Mainland lizards avoided shelters scented by saurophagous snakes, but not those scented by non saurophagous snake species. Long isolated lizards (7000 years ago) showed no anti-predator response to any snake, suggesting a total loss of anti-predatory behaviour towards saurophagous snakes. More recently isolated lizards (5000 years ago) however showed anti-snake behaviour towards a former sympatric adder species, and a tendency to avoid the scent of a sympatric generalist feeder snake. There was no difference in the anti-snake responses between adult and juvenile wall lizards from all four sites, suggesting a limited role for experience (behavioural plasticity) in the expression of anti-snake behaviour in wall lizards.
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Affiliation(s)
- Jonas Durand
- 1Station d’Ecologie Expérimentale de Moulis, CNRS, 09200 Saint Girons, France
| | - Arnaud Legrand
- 2Médecine néonatale, CHU de Nantes, 44093 Nantes, France
| | - Mélodie Tort
- 1Station d’Ecologie Expérimentale de Moulis, CNRS, 09200 Saint Girons, France
| | - Alice Thiney
- 1Station d’Ecologie Expérimentale de Moulis, CNRS, 09200 Saint Girons, France
| | | | - Aurélie Coulon
- 3UMR 7179 MNHN/CNRS Département Ecologie et Gestion de la Biodiversité Muséum National d’Histoire Naturelle, 91800 Brunoy, France
| | - Fabien Aubret
- 1Station d’Ecologie Expérimentale de Moulis, CNRS, 09200 Saint Girons, France
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