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Cavalieri D, Tournilhac O, Missiglia E, Bonnet C, Ledoux‐Pilon A, Bisig B, Cairoli A, Poullot E, Fataccioli V, Parrens M, Copin MC, Gutierrez FL, Xerri L, Bossard C, Wind R, Drieux F, Lhomme F, Daniel A, Clément‐Filliatre L, Lemmonier F, Morel P, Noël R, Brotelle T, Glaisner S, Sibon D, Yamani A, Bologna S, Queru K, Damaj G, Letailleur V, Villemagne B, Fleck E, Dupont E, Tchernonog E, Monjanel H, Wilde V, Vallois D, Gaulard P, Leval L. MONOMORPHIC EPITHELIOTROPIC INTESTINAL T‐CELL LYMPHOMA (MEITL): CLINICO‐PATHOLOGICAL ANALYSIS OF A MULTICENTER EUROPEAN COHORT. Hematol Oncol 2021. [DOI: 10.1002/hon.44_2879] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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De Serres SA, Noël R, Côté I, Lapointe I, Wagner E, Riopel J, Latulippe E, Agharazii M, Houde I. 2013 Banff Criteria for Chronic Active Antibody-Mediated Rejection: Assessment in a Real-Life Setting. Am J Transplant 2016; 16:1516-25. [PMID: 26602055 DOI: 10.1111/ajt.13624] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 11/05/2015] [Accepted: 11/07/2015] [Indexed: 01/25/2023]
Abstract
Significant changes in the criteria for chronic active antibody-mediated rejection (CAABMR) were made in the Banff 2013 classification. These modifications expanded the number of patients diagnosed with CAABMR, with undetermined clinical significance. We compared the 2007 and 2013 criteria for the composite end point of death-censored graft failure or doubling of serum creatinine in 123 patients meeting the criterion related to the morphologic evidence of chronic tissue injury. In all, 18% and 36% of the patients met the 2007 and 2013 criteria, respectively. For the criterion related to antibody interaction with endothelium, only 25% were positive based on the 2007 definition compared with 82% using the 2013 definition. Cox modeling revealed that a 2013 but not a 2007 diagnosis was associated with the composite end point (adjusted hazard ratio 2.5 [95% confidence interval (CI) 1.2-5.2] vs. 1.6 [95% CI 0.7-3.8], respectively). The 2013 criterion based on both the C4d score and the glomerulitis plus peritubular capillaritis score (g+ptc) was more strongly associated with the end point than the 2007 criterion based only on C4d; however, when dissected by component, only the C4d component was significant. The association with clinical outcomes improved with the 2013 criteria. This is related to the new C4d threshold but not to the g+ptc ≥2 component.
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Affiliation(s)
- S A De Serres
- Transplantation Unit, Renal Division, Department of Medicine, University Health Center of Quebec, Faculty of Medicine, Laval University, Québec, QC, Canada
| | - R Noël
- Transplantation Unit, Renal Division, Department of Medicine, University Health Center of Quebec, Faculty of Medicine, Laval University, Québec, QC, Canada
| | - I Côté
- Transplantation Unit, Renal Division, Department of Medicine, University Health Center of Quebec, Faculty of Medicine, Laval University, Québec, QC, Canada
| | - I Lapointe
- Transplantation Unit, Renal Division, Department of Medicine, University Health Center of Quebec, Faculty of Medicine, Laval University, Québec, QC, Canada
| | - E Wagner
- Immunology and Histocompatibility Laboratory, University Health Center of Quebec, Faculty of Medicine, Laval University, Québec, QC, Canada
| | - J Riopel
- Department of Pathology, University Health Center of Quebec, Faculty of Medicine, Laval University, Québec, QC, Canada
| | - E Latulippe
- Department of Pathology, University Health Center of Quebec, Faculty of Medicine, Laval University, Québec, QC, Canada
| | - M Agharazii
- Transplantation Unit, Renal Division, Department of Medicine, University Health Center of Quebec, Faculty of Medicine, Laval University, Québec, QC, Canada
| | - I Houde
- Transplantation Unit, Renal Division, Department of Medicine, University Health Center of Quebec, Faculty of Medicine, Laval University, Québec, QC, Canada
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Dubé J, Noël R. Les représentations mentales de l’enfant chez les parents : situation, illustrations et réflexions sur les catalyseurs de changements en évaluation thérapeutique de l’enfant. PRAT PSYCHOL 2015. [DOI: 10.1016/j.prps.2015.09.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Crochemore C, Mekki M, Corbière C, Karoui A, Noël R, Vendeville C, Vaugeois JM, Monteil C. Subsarcolemmal and interfibrillar mitochondria display distinct superoxide production profiles. Free Radic Res 2015; 49:331-7. [PMID: 25689624 DOI: 10.3109/10715762.2015.1006212] [Citation(s) in RCA: 15] [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] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Cardiac subsarcolemmal mitochondria (SSM) and interfibrillar mitochondria (IFM) subpopulations display distinct biochemical, morphological, and functional characteristics. Moreover, they appear to be differently influenced during cardiac pathologies or toxic injuries. Although mitochondrial reactive oxygen species seem to play a critical role in cardiac function and diseases, limited information exists about the superoxide production characteristics of these mitochondrial subpopulations. In this work, using direct measurement of superoxide by electron paramagnetic resonance, we showed that differences in superoxide production profiles were present between cardiac IFM and SSM, in terms of intensity and major sites of superoxide generation. In SSM incubated with glutamate plus malate as substrates, the total observed superoxide levels were significantly higher than those observed with IFM, with an important contribution of the NADH-oxidizing site of complex I (site If) and the quinol-oxidizing site of complex III (site IIIQ0). In both IFM and SSM, succinate leads to similar rates of total superoxide levels with a substantial role for contribution of reverse electron transfer. Finally, using two spin probes with different membrane permeabilities, our data on complex III showed direct intra- and extra-mitochondrial superoxide release whereas complex I- and II-dependent superoxide were exclusively released inside the mitochondria, confirming previous studies. Feasibility of this approach to measure intra- and extra-mitochondrial superoxide levels and to characterize distinct superoxide production profiles of cardiac IFM and SSM has been demonstrated.
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Affiliation(s)
- C Crochemore
- Normandy University, Univ Rouen , ABTE EA 4651 , France
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Noël R, Gembus V, Levacher V, Brière JF. Organocatalysed synthesis of isoxazolines initiated by a chemoselective oxa-Michael reaction of N-BocNHOH. Org Biomol Chem 2014; 12:1245-9. [DOI: 10.1039/c3ob42406e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Gupta N, Noël R, Pons V, Goudet A, Martinez J, Garcia-Castillo D, Michau A, Johannes L, Gillet D, Barbier J, Cintrat J. Development of potent small-molecule inhibitors of Shiga toxin. Toxicon 2013. [DOI: 10.1016/j.toxicon.2013.08.033] [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: 11/28/2022]
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Riopel J, Houde I, Côté I, Lachance J, Noël R, Latulippe É, Delage C. Le marqueur c4d dans les biopsies de greffon rénal, les resultants de l’Hôtel-Dieu de Québec après deux années d’expérience. Ann Pathol 2006. [DOI: 10.1016/s0242-6498(06)70675-7] [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: 11/28/2022]
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Delage C, Latulippe É, Babin J, Houde I, Côté I, Lachance JG, Noël R. Diagnostic du rejet aigu humoral dans le greffon rénal à l’aide du marqueur spécifique C4d. Observation d’un 1er cas à l’hôtel-dieu de Québec. Ann Pathol 2004. [DOI: 10.1016/s0242-6498(04)93912-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Côté I, Deschêsnes L, de Cotret PR, Lachance JG, Noël R, Isenring P, Houde I. New immunosuppressive regimens and cytomegalovirus infection after kidney transplantation: a retrospective study. Transplant Proc 2001; 33:3626-9. [PMID: 11750540 DOI: 10.1016/s0041-1345(01)02560-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- I Côté
- Nephrology Service, L'Hôtel-Dieu de Québec Hospital of the CHUQ, Canada
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Houde I, Isenring P, Boucher D, Noël R, Lachanche JG. Mycophenolate mofetil, an alternative to cyclosporine A for long-term immunosuppression in kidney transplantation? Transplantation 2000; 70:1251-3. [PMID: 11063351 DOI: 10.1097/00007890-200010270-00023] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Mycophenolate-mofetil (MMF) is a nonnephrotoxic immunosuppressant most often used in combination with cyclosporine A (CsA) and prednisone (Pred). This study reports the outcome of 17 adult renal recipients whose immunosuppressive regimen was changed from CsA-Pred to MMF-Pred because of CsA nephrotoxicity. METHODS CsA nephrotoxicity was diagnosed in all patients based on suggestive histopathological lesions on a renal biopsy. Sixteen patients had deteriorating graft function and 1 had isolated persistent proteinuria. Immunosuppressive therapy was changed 57+/-32 months posttransplant. RESULTS After replacement of CsA by MMF, a reduction in serum creatinine was observed in all patients (mean 26+/-17%). This reduction was maintained 20+/-8 months after the change in therapy without any episodes of acute rejection. Serum lipids and blood pressure also decreased significantly. CONCLUSION This study demonstrates that MMF-Pred can be an effective long-term immunosuppressive treatment alternative for renal transplant patients experiencing CsA nephrotoxicity. Such treatment may result in improved graft function, and better control of hypertension and hyperlipidemia.
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Affiliation(s)
- I Houde
- L'Hôtel-Dieu de Québec Hospital, Department of Medicine, Faculty of Medicine, Laval University, PQ Canada
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Radeau T, Vohl MC, Houde I, Lachance JG, Noël R, Després JP, Douville P, Bergeron J. HDL cholesterol and TaqIB cholesteryl ester transfer protein gene polymorphism in renal transplant recipients. Nephron Clin Pract 2000; 84:333-41. [PMID: 10754410 DOI: 10.1159/000045608] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Decreased serum levels of high-density lipoprotein cholesterol (HDL-C) are a well-known risk factor for coronary heart disease (CHD) in the general population and have been suggested as one of the best predictor of CHD after renal transplantation. However, very heterogeneous HDL-C levels have been reported in renal transplant recipients. In this patient population, serum HDL-C levels are determined by complex interactions between hormonal, environmental (such as a high amount of abdominal adipose tissue), and genetic factors and drugs (particularly glucocorticoids). We, therefore, evaluated the effects of the cholesteryl ester transfer protein (CETP) gene TaqIB polymorphism as well as of abdominal obesity on HDL-C levels in 78 male renal transplant recipients who were receiving azathioprine and/or ciclosporin A in combination with prednisone as immunosuppression. The patients were classified into genotypic groups according to the presence or absence of the restriction site (B1 allele or B2 allele, respectively). The distribution of CETP genotypes was similar to that previously described in the general population. Overall, HDL-C levels were 19 and 26% higher in B1B2 and B2B2 patients as compared with B1B1 homozygotes (p < 0.05), even after control for other lipid measurements. Patients with abdominal obesity (waist girth >/=93 cm) showed reduced HDL-C levels as compared with lean (waist girth <93 cm) patients (1.20 +/- 0.28 vs. 1.42 +/- 0.41 mmol/l, respectively, p < 0.01). Moreover, the HDL-C levels were markedly affected by the CETP TaqIB polymorphism in lean patients (+28 and +41% in B1B2 and B2B2 as compared with B1B1 patients, p < 0.05), but no significant difference was observed among obese patients. Significantly lower total cholesterol:HDL-C ratios were obtained in lean B2B2 homozygotes, suggesting that these patients could be less susceptible to atherosclerosis than lean B1B1 homozygotes. In addition, patients with the B1B1 genotype had more documented CHD as compared with patients carrying at least one B2 allele, supporting the protective effect of the B2 allele against CHD. In conclusion, considerable variation in HDL-C levels appears to be explained by the CETP TaqIB gene polymorphism in male renal transplant recipients, but this potential protective gene effect appears strongly reduced by concomitant abdominal obesity.
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Affiliation(s)
- T Radeau
- Lipid Research Center, Centre Hospitalier Universitaire de Québec, Qué., Canada
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Dufour A, Alary M, Otis J, Noël R, Remis RS, Mâsse B, Parent R, Turmel B, Lavoie R, LeClerc R, Vincelette J. Correlates of risky behaviors among young and older men having sexual relations with men in Montréal, Québec, Canada. Omega Study Group. J Acquir Immune Defic Syndr 2000; 23:272-8. [PMID: 10839664 DOI: 10.1097/00126334-200003010-00011] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To assess characteristics associated with 1) age and 2) recent unprotected anal sex with casual partners among men having sexual relations with men (MSM) participating in the Omega Cohort, Montréal, Québec, Canada. METHODS The Omega Cohort is a study of the incidence and psychosocial determinants of HIV infection among MSM living in Montréal. MSM complete a questionnaire and are tested for HIV every 6 months. RESULTS Thirteen percent of young MSM (< 30 years of age, n = 355) and 12% of older MSM (> or = 30 years of age, n = 455) reported recent unprotected anal sex with casual partners. The predictors of this latter behavior were: not living with a male sexual partner, unprotected anal sex with regular partner, > 5 casual partners, alcohol/drug use before anal sex, and having difficulties with procedures needed for safe sex. Among young MSM, additional predictors were: to have been living in Montreal for less than 1 year and to have exchanged money for sex. Among older MSM, additional predictors were: female sexual partners, unprotected anal sex with an HIV-infected partner, and feeling invulnerable to AIDS. CONCLUSION Young Omega participants do not have more risky behaviors than older participants. Some predictors of recent risk behaviors with casual partners were different between the two groups. Prevention programs should be adapted consequently.
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Affiliation(s)
- A Dufour
- Groupe de Recherche en Epidémiologie de l'Université Laval, Centre Hospitalier Affilié Universitaire de Québec, Québec, Canada
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Abstract
Nephrotoxicity has recently been reported with the use of 5-aminosalicylic acid (5-ASA) which has structural similarities to phenacetin and aspirin. The present paper describes 2 cases of interstitial nephritis and 1 case of end-stage failure associated with 5-ASA treatment. The first patient presented with severe renal failure which was partially reversed with 5-ASA discontinuation and steroid therapy. The second had severe renal failure (serum creatinine 469 mmol/l) but renal function stabilized with 5-ASA withdrawal. The third patient had end-stage renal failure and underwent hemodialysis and a successful kidney transplant.
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Affiliation(s)
- M Agharazii
- CHUQ, L'Hôtel-Dieu de Québec Hospital, and Department of Medicine, Laval University, Québec, Canada
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Belles-Isles M, Houde I, Lachance JG, Noël R, Kingma I, Roy R. Monitoring of cytomegalovirus infections by the CD8+CD38+ T-cell subset in kidney transplant recipients. Transplantation 1998; 65:279-82. [PMID: 9458031 DOI: 10.1097/00007890-199801270-00026] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND The CD8+CD38+ T-cell subset can predict progression to acquired immune deficiency syndrome among human immunodeficiency virus-positive subjects. This T-cell subset usually increases during other active viral infections (cytomegalovirus [CMV], Epstein Barr virus). We report on its usefulness in the early detection of CMV infection in kidney transplant recipients. METHODS Quantitation of CD8+CD38+ T cells was monitored by dual-color flow cytometry analysis on 77 patients during the posttransplantation period. Seventeen of the 52 patients at risk for CMV disease (33%) had primary infection or reactivation and three patients had herpes simplex virus infection only. RESULTS In every patient with CMV disease, high values for the CD8+CD38+ subset were detected with a 90% positive predictive value for the primary infections. Elevated values were observed at the very first clinical signs of the viral disease or within the few preceeding days. Acute rejection episodes did not provoke false-positive results. CONCLUSION This immunologic marker is sensitive and easily obtainable on a daily basis. It may help to direct therapy during rejection or serve as a tool for early detection of clinical viral diseases.
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Affiliation(s)
- M Belles-Isles
- Rheumatology-Immunology Research Center, Quebec University Hospital Center, Ste-Foy, Canada
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Fradet Y, Roy R, Lachance JG, Noël R. Kidney graft survival: role of blood transfusions and lymphocytotoxic antibodies. Clin Nephrol 1982; 18:69-73. [PMID: 6754190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
In 121 primary cadaver kidney grafts, a significant increase in graft survival has been observed in recipients transfused prior to transplantation, whatever the number of units received or the time of administration. This beneficial effect of blood transfusion was shown to be independent of the recipient's sex, blood group, HLA-A, B match grade and dialysis time. In longitudinal screenings, the incidence of post-transplant antibodies did not differ according to transfusion status of recipient. However, the graft survival was significantly improved in transfused patients without antibody or with an IgM anti-B (cold) antibody (95% survival at 4 years) as compared to nontransfused with the same characteristics. Patients with IgG anti-B (warm), anti-T or anti-PBL antibodies IgG/IgM shared a uniformly poor graft prognosis whether or not they had been transfused.
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Noël R. [Organization and functioning of services for old chronic mental patients]. Brux Med 1977; 57:175-83. [PMID: 861823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Noël R. [Integration of geronto-psychiatric services in the planning of medical and social action in regard to the aged]. Brux Med 1972; 52:281-302. [PMID: 5036053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Noël R. [Psycholeptic drugs]. Infirmiere 1968; 46:14-22. [PMID: 5184745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Noël R. [Psychogeriatrics and mental readaptation in a rest home]. Brux Med 1967; 47:739-56. [PMID: 5611554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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