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Seugnet L, Anaclet C, Perier M, Ghersi‐Egea J, Lin J. A marked enhancement of a BLOC-1 gene, pallidin, associated with somnolent mouse models deficient in histamine transmission. CNS Neurosci Ther 2022; 29:483-486. [PMID: 36258293 PMCID: PMC9804043 DOI: 10.1111/cns.13995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 02/06/2023] Open
Affiliation(s)
- Laurent Seugnet
- Integrative Physiology of the Brain Arousal Systems, Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR 5292Claude Bernard University Lyon 1BronFrance
| | - Christelle Anaclet
- Integrative Physiology of the Brain Arousal Systems, Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR 5292Claude Bernard University Lyon 1BronFrance,Department of Neurological SurgeryUniversity of California, Davis School of MedicineSacramentoUSA
| | - Magali Perier
- Integrative Physiology of the Brain Arousal Systems, Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR 5292Claude Bernard University Lyon 1BronFrance
| | - Jean‐François Ghersi‐Egea
- Fluids and Barriers of the Central Nervous System, Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR 5292Claude Bernard University Lyon 1BronFrance
| | - Jian‐Sheng Lin
- Integrative Physiology of the Brain Arousal Systems, Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR 5292Claude Bernard University Lyon 1BronFrance
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2
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Consoli A, Coskun O, Perier M, Di Maria F, Gratieux J, Dean P, Pizzuto S, Badat N, Condette-Auliac S, Boulin A, Rodesch G. [Therapeutic and endovascular management of cerebral mycotic aneurysms]. Ann Cardiol Angeiol (Paris) 2020; 69:411-414. [PMID: 33131724 DOI: 10.1016/j.ancard.2020.10.002] [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] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 10/04/2020] [Indexed: 11/15/2022]
Abstract
Infective endocardites are associated with both ischemic and hemorrhagic neurological complications and also with cerebral abscesses and the development of "mycotic" aneurysms, which are detected in about 5 % of patients in the acute and sub-acute phase of the infection. Data about their natural history and their hemorrhagic risk are scarce and fragmented. The therapeutic management is represented by the medical treatment of the infection with interventional abstention, the surgical treatment and the endovascular approach by selective embolization of the aneurysm. No evidence is provided concerning the superiority of a specific approach. Mycotic aneurysms remain a diagnostic and therapeutic challenge and their management is necessarily based on a multidiscplinary approach.
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Affiliation(s)
- A Consoli
- Service de neuroradiologie diagnostique et thérapeutique, hôpital Foch, 40, rue Worth, 92151, Suresnes, France.
| | - O Coskun
- Service de neuroradiologie diagnostique et thérapeutique, hôpital Foch, 40, rue Worth, 92151, Suresnes, France
| | - M Perier
- Service de cardiologie, hôpital Foch, 40, rue Worth, 92151, Suresnes, France
| | - F Di Maria
- Service de neuroradiologie diagnostique et thérapeutique, hôpital Foch, 40, rue Worth, 92151, Suresnes, France
| | - J Gratieux
- Service de neuroradiologie diagnostique et thérapeutique, hôpital Foch, 40, rue Worth, 92151, Suresnes, France
| | - P Dean
- Service de neuroradiologie diagnostique et thérapeutique, hôpital Foch, 40, rue Worth, 92151, Suresnes, France
| | - S Pizzuto
- Unité de neuroradiologie, ospedale Civile S.Agostino-Estense, CHU Modène, université de Modène et Reggio Emilia, Via Pietro Giardini 1355, Modène, Baggiovara, 41126, Italie
| | - N Badat
- Service de neuroradiologie diagnostique et thérapeutique, hôpital Foch, 40, rue Worth, 92151, Suresnes, France
| | - S Condette-Auliac
- Service de neuroradiologie diagnostique et thérapeutique, hôpital Foch, 40, rue Worth, 92151, Suresnes, France
| | - A Boulin
- Service de neuroradiologie diagnostique et thérapeutique, hôpital Foch, 40, rue Worth, 92151, Suresnes, France
| | - G Rodesch
- Service de neuroradiologie diagnostique et thérapeutique, hôpital Foch, 40, rue Worth, 92151, Suresnes, France
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Bataille M, Mahé E, Vuong V, Dompmartin A, Richard MA, Debarbieux S, Doutre MS, Friedel J, Ottavy F, Jouan N, Pépin E, Pistorius V, Perier M, Brenaut E, Kottler D, Hirsch G, Hubiche T, Morand JJ, Ollivaud L, Gallais V, Gautier MS, Carvalho P, Duong TA. Profil du télédermatologue en France en 2019. Ann Dermatol Venereol 2019. [DOI: 10.1016/j.annder.2019.09.377] [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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Duchêne A, Perier M, Zhao Y, Liu X, Thomasson J, Chauveau F, Piérard C, Lagarde D, Picoli C, Jeanson T, Mouthon F, Dauvilliers Y, Giaume C, Lin JS, Charvériat M. Impact of Astroglial Connexins on Modafinil Pharmacological Properties. Sleep 2016; 39:1283-92. [PMID: 27091533 DOI: 10.5665/sleep.5854] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 02/27/2016] [Indexed: 01/11/2023] Open
Abstract
STUDY OBJECTIVES Modafinil is a non-amphetaminic wake-promoting compound used as therapy against sleepiness and narcolepsy. Its mode of action is complex, but modafinil has been recently proposed to act as a cellular-coupling enhancer in glial cells, through modulation of gap junctions constituted by connexins. The present study investigated in mice the impact of connexins on the effects of modafinil using connexin inhibitors. METHODS Modafinil was administered alone or combined with inhibitors of astrocyte connexin, meclofenamic acid, or flecainide, respectively, acting on Cx30 and Cx43. Sleep-wake states were monitored in wild-type and narcoleptic orexin knockout mice. A spontaneous alternation task was used to evaluate working memory in wild-type mice. The effects of the compounds on astroglial intercellular coupling were determined using dye transfer in acute cortical slices. RESULTS Meclofenamic acid had little modulation on the effects of modafinil, but flecainide enhanced the wake-promoting and pro-cognitive effects of modafinil. Co-administration of modafinil/flecainide resulted in a marked decrease in the number and duration of direct transitions to rapid eye movement sleep, which are characteristic of narcoleptic episodes in orexin knockout mice. Furthermore, modafinil enhanced the connexin-mediated astroglial cell coupling, whereas flecainide reduced it. Finally, this modafinil-induced effect was reversed by co-administration with flecainide. CONCLUSIONS Our study indicates that flecainide impacts the pharmacological effects of modafinil, likely through the normalization of Cx30-dependent gap junctional coupling in astroglial networks. The enhancement of the wake-promoting, behavioral, and cognitive outcomes of modafinil demonstrated here with flecainide would open new perspectives in the management of sleep disorders such as narcolepsy. COMMENTARY A commentary on this article appears in this issue on page 1175.
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Affiliation(s)
| | - Magali Perier
- Laboratory Waking, CRNL, INSERM-U1028/CNRS-UMR5292, Claude Bernard University, Lyon Cedex, France
| | - Yan Zhao
- Laboratory Waking, CRNL, INSERM-U1028/CNRS-UMR5292, Claude Bernard University, Lyon Cedex, France
| | - Xinhe Liu
- Collège de France, Centre for Interdisciplinary Research in Biology (CIRB), Paris, France
| | - Julien Thomasson
- Institut de Recherche Biomédicale des Armées, Brétigny-sur-Orge, France
| | - Frédéric Chauveau
- Institut de Recherche Biomédicale des Armées, Brétigny-sur-Orge, France
| | | | - Didier Lagarde
- Institut de Recherche Biomédicale des Armées, Brétigny-sur-Orge, France
| | - Christèle Picoli
- Theranexus, Lyon, France.,CEA/IMETI/Theranexus, Fontenayaux-Roses, France
| | - Tiffany Jeanson
- Theranexus, Lyon, France.,Collège de France, Centre for Interdisciplinary Research in Biology (CIRB), Paris, France
| | | | - Yves Dauvilliers
- National Reference Centre for Narcolepsy, Sleep Unit, CHU Montpellier, INSERM U1061, France
| | - Christian Giaume
- Collège de France, Centre for Interdisciplinary Research in Biology (CIRB), Paris, France
| | - Jian-Sheng Lin
- Laboratory Waking, CRNL, INSERM-U1028/CNRS-UMR5292, Claude Bernard University, Lyon Cedex, France
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5
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Parmentier R, Zhao Y, Perier M, Akaoka H, Lintunen M, Hou Y, Panula P, Watanabe T, Franco P, Lin JS. Role of histamine H1-receptor on behavioral states and wake maintenance during deficiency of a brain activating system: A study using a knockout mouse model. Neuropharmacology 2015; 106:20-34. [PMID: 26723880 DOI: 10.1016/j.neuropharm.2015.12.014] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [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: 09/04/2015] [Revised: 12/10/2015] [Accepted: 12/14/2015] [Indexed: 10/22/2022]
Abstract
Using knockout (KO) mice lacking the histamine (HA)-synthesizing enzyme (histidine decarboxylase, HDC), we have previously shown the importance of histaminergic neurons in maintaining wakefulness (W) under behavioral challenges. Since the central actions of HA are mediated by several receptor subtypes, it remains to be determined which one(s) could be responsible for such a role. We have therefore compared the cortical-EEG, sleep and W under baseline conditions or behavioral/pharmacological stimuli in littermate wild-type (WT) and H1-receptor KO (H1-/-) mice. We found that H1-/- mice shared several characteristics with HDC KO mice, i.e. 1) a decrease in W after lights-off despite its normal baseline daily amount; 2) a decreased EEG slow wave sleep (SWS)/W power ratio; 3) inability to maintain W in response to behavioral challenges demonstrated by a decreased sleep latency when facing various stimuli. These effects were mediated by central H1-receptors. Indeed, in WT mice, injection of triprolidine, a brain-penetrating H1-receptor antagonist increased SWS, whereas ciproxifan (H3-receptor antagonist/inverse agonist) elicited W; all these injections had no effect in H1-/- mice. Finally, H1-/- mice showed markedly greater changes in EEG power (notably in the 0.8-5 Hz band) and sleep-wake cycle than in WT mice after application of a cholinergic antagonist or an indirect agonist, i.e., scopolamine or physostigmine. Hence, the role of HA in wake-promotion is largely ensured by H1-receptors. An upregulated cholinergic system may account for a quasi-normal daily amount of W in HDC or H1-receptor KO mice and likely constitutes a major compensatory mechanism when the brain is facing deficiency of an activating system. This article is part of the Special Issue entitled 'Histamine Receptors'.
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Affiliation(s)
- Régis Parmentier
- Waking Team, Integrative Physiology of the Brain Arousal Systems, CRNL, INSERM-U1028, CNRS UMR5292, School of Medicine, Claude Bernard University, Lyon, France
| | - Yan Zhao
- Waking Team, Integrative Physiology of the Brain Arousal Systems, CRNL, INSERM-U1028, CNRS UMR5292, School of Medicine, Claude Bernard University, Lyon, France; Department of Physiology, Zhongshan Medical College, Sun Yat-Sen University, Guangzhou, China
| | - Magali Perier
- Waking Team, Integrative Physiology of the Brain Arousal Systems, CRNL, INSERM-U1028, CNRS UMR5292, School of Medicine, Claude Bernard University, Lyon, France
| | - Hideo Akaoka
- Waking Team, Integrative Physiology of the Brain Arousal Systems, CRNL, INSERM-U1028, CNRS UMR5292, School of Medicine, Claude Bernard University, Lyon, France
| | - Minnamaija Lintunen
- Department of Anatomy and Neuroscience Center, University of Helsinki, Helsinki, Finland
| | - Yiping Hou
- Department of Neuroscience, Anatomy, Histology & Embryology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Pertti Panula
- Department of Anatomy and Neuroscience Center, University of Helsinki, Helsinki, Finland
| | - Takeshi Watanabe
- Unit for Immune Surveillance Research, Research Center for Allergy and Immunology, RIKEN Institute, Tsurumi-ku, Yokohama, Japan
| | - Patricia Franco
- Waking Team, Integrative Physiology of the Brain Arousal Systems, CRNL, INSERM-U1028, CNRS UMR5292, School of Medicine, Claude Bernard University, Lyon, France
| | - Jian-Sheng Lin
- Waking Team, Integrative Physiology of the Brain Arousal Systems, CRNL, INSERM-U1028, CNRS UMR5292, School of Medicine, Claude Bernard University, Lyon, France.
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Franco P, Junqua A, Guignard-Perret A, Raoux A, Perier M, Raverot V, Claustrat B, Gustin MP, Inocente CO, Lin JS. High bicarbonate levels in narcoleptic children. J Sleep Res 2015; 25:194-202. [PMID: 26574184 DOI: 10.1111/jsr.12357] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2015] [Accepted: 09/08/2015] [Indexed: 12/01/2022]
Abstract
The objective of this study was to evaluate the levels of plasma bicarbonate levels in narcoleptic children. Clinical, electrophysiological data and bicarbonate levels were evaluated retrospectively in children seen in our paediatric national reference centre for hypersomnia. The cohort included 23 control subjects (11.5 ± 4 years, 43% boys) and 51 patients presenting de-novo narcolepsy (N) (12.7 ± 3.7 years, 47% boys). In narcoleptic children, cataplexy was present in 78% and DQB1*0602 was positive in 96%. The control children were less obese (2 versus 47%, P = 0.001). Compared with control subjects, narcoleptic children had higher bicarbonate levels (P = 0.02) as well as higher PCO2 (P < 0.01) and lower venous pH gas (P < 0.01). Bicarbonate levels higher than 27 mmol L(-1) were found in 41.2% of the narcoleptic children and 4.2% of the controls (P = 0.001). Bicarbonate levels were correlated with the Adapted Epworth Sleepiness Scale (P = 0.01). Narcoleptic patients without obesity often had bicarbonate levels higher than 27 mmol L (-1) (55 versus 25%, P = 0.025). No differences were found between children with and without cataplexy. In conclusion, narcoleptic patients had higher bicarbonate plasma levels compared to control children. This result could be a marker of hypoventilation in this pathology, provoking an increase in PCO2 and therefore a respiratory acidosis, compensated by an increase in plasma bicarbonates. This simple screening tool could be useful for prioritizing children for sleep laboratory evaluation in practice.
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Affiliation(s)
- Patricia Franco
- Integrative Physiology of Brain Arousal System, CRNL, INSERM-U1028, University Lyon1, Lyon, France.,National Reference Centre for Orphan Diseases, Narcolepsy, Idiopathic Hypersomnia and Kleine-Levin Syndrome (CNR narcolepsie-hypersomnie), Lyon, France.,Pediatric Sleep Unit, Hôpital Femme Mère Enfant, University Lyon1, Lyon, France
| | - Aurelie Junqua
- Integrative Physiology of Brain Arousal System, CRNL, INSERM-U1028, University Lyon1, Lyon, France.,National Reference Centre for Orphan Diseases, Narcolepsy, Idiopathic Hypersomnia and Kleine-Levin Syndrome (CNR narcolepsie-hypersomnie), Lyon, France.,Pediatric Sleep Unit, Hôpital Femme Mère Enfant, University Lyon1, Lyon, France.,Service d'Hormonologie, Groupement Est, Université Lyon 1, Lyon, France
| | - Anne Guignard-Perret
- Integrative Physiology of Brain Arousal System, CRNL, INSERM-U1028, University Lyon1, Lyon, France.,National Reference Centre for Orphan Diseases, Narcolepsy, Idiopathic Hypersomnia and Kleine-Levin Syndrome (CNR narcolepsie-hypersomnie), Lyon, France.,Pediatric Sleep Unit, Hôpital Femme Mère Enfant, University Lyon1, Lyon, France
| | - Aude Raoux
- Integrative Physiology of Brain Arousal System, CRNL, INSERM-U1028, University Lyon1, Lyon, France.,National Reference Centre for Orphan Diseases, Narcolepsy, Idiopathic Hypersomnia and Kleine-Levin Syndrome (CNR narcolepsie-hypersomnie), Lyon, France.,Pediatric Sleep Unit, Hôpital Femme Mère Enfant, University Lyon1, Lyon, France
| | - Magali Perier
- Integrative Physiology of Brain Arousal System, CRNL, INSERM-U1028, University Lyon1, Lyon, France
| | - Veronique Raverot
- Service d'Hormonologie, Groupement Est, Université Lyon 1, Lyon, France
| | - Bruno Claustrat
- Service d'Hormonologie, Groupement Est, Université Lyon 1, Lyon, France
| | - Marie-Paule Gustin
- Department of Public Health, Institute of Pharmacy and Service de Biostatistique, University Lyon1, Lyon, France
| | - Clara Odilia Inocente
- Integrative Physiology of Brain Arousal System, CRNL, INSERM-U1028, University Lyon1, Lyon, France
| | - Jian-Sheng Lin
- Integrative Physiology of Brain Arousal System, CRNL, INSERM-U1028, University Lyon1, Lyon, France
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Khouzami L, Bourin MC, Christov C, Damy T, Escoubet B, Caramelle P, Perier M, Wahbi K, Meune C, Pavoine C, Pecker F. Delayed cardiomyopathy in dystrophin deficient mdx mice relies on intrinsic glutathione resource. Am J Pathol 2010; 177:1356-64. [PMID: 20696779 DOI: 10.2353/ajpath.2010.090479] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Oxidative stress contributes to the pathogenesis of Duchenne muscular dystrophy (DMD). Although they have been a model for DMD, mdx mice exhibit slowly developing cardiomyopathy. We hypothesized that disease process was delayed owing to the development of an adaptive mechanism against oxidative stress, involving glutathione synthesis. At 15 to 20 weeks of age, mdx mice displayed a 33% increase in blood glutathione levels compared with age-matched C57BL/6 mice. In contrast, cardiac glutathione content was similar in mdx and C57BL/6 mice as a result of the balanced increased expression of glutamate cysteine ligase catalytic and regulatory subunits ensuring glutathione synthesis in the mdx mouse heart, as well as increased glutathione peroxidase-1 using glutathione. Oral administration from 10 weeks of age of the glutamate cysteine ligase inhibitor, l-buthionine(S,R)-sulfoximine (BSO, 5 mmol/L), led to a 33% and 50% drop in blood and cardiac glutathione, respectively, in 15- to 20-week-old mdx mice. Moreover, 20-week-old BSO-treated mdx mice displayed left ventricular hypertrophy associated with diastolic dysfunction, discontinuities in beta-dystroglycan expression, micronecrosis and microangiopathic injuries. Examination of the glutathione status in four DMD patients showed that three displayed systemic glutathione deficiency as well. In conclusion, low glutathione resource hastens the onset of cardiomyopathy linked to a defect in dystrophin in mdx mice. This is relevant to the glutathione deficiency that DMD patients may suffer.
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Affiliation(s)
- Lara Khouzami
- Institut National de la Santé et de la Recherche Médicale, Institut Mondor de Recherche Biomédicale, Créteil, France
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8
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Defer N, Wan J, Souktani R, Escoubet B, Perier M, Caramelle P, Manin S, Deveaux V, Bourin MC, Zimmer A, Lotersztajn S, Pecker F, Pavoine C. The cannabinoid receptor type 2 promotes cardiac myocyte and fibroblast survival and protects against ischemia/reperfusion-induced cardiomyopathy. FASEB J 2009; 23:2120-30. [PMID: 19246487 DOI: 10.1096/fj.09-129478] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Post-myocardial infarction (MI) heart failure is a major public health problem in Western countries and results from ischemia/reperfusion (IR)-induced cell death, remodeling, and contractile dysfunction. Ex vivo studies have demonstrated the cardioprotective anti-inflammatory effect of the cannabinoid type 2 (CB2) receptor agonists within hours after IR. Herein, we evaluated the in vivo effect of CB2 receptors on IR-induced cell death, fibrosis, and cardiac dysfunction and investigated the target role of cardiac myocytes and fibroblasts. The infarct size was increased 24 h after IR in CB2(-/-) vs. wild-type (WT) hearts and decreased when WT hearts were injected with the CB2 agonist JWH133 (3 mg/kg) at reperfusion. Compared with WT hearts, CB2(-/-) hearts showed widespread injury 3 d after IR, with enhanced apoptosis and remodeling affecting the remote myocardium. Finally, CB2(-/-) hearts exhibited exacerbated fibrosis, associated with left ventricular dysfunction 4 wk after IR, whereas their WT counterparts recovered normal function. Cardiac myocytes and fibroblasts isolated from CB2(-/-) hearts displayed a higher H(2)O(2)-induced death than WT cells, whereas 1 microM JWH133 triggered survival effects. Furthermore, H(2)O(2)-induced myofibroblast activation was increased in CB2(-/-) fibroblasts but decreased in 1 microM JWH133-treated WT fibroblasts, compared with that in WT cells. Therefore, CB2 receptor activation may protect against post-IR heart failure through direct inhibition of cardiac myocyte and fibroblast death and prevention of myofibroblast activation.
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Decostre V, Khouzami L, Varnous S, Caramelle P, Perier M, Adamy C, Arimura T, Candiani G, Massart C, Meune C, Pecker F, Bonne G. G.P.5.12 Glutathione depletion in Emery–Dreifuss muscular dystrophy. Treatment of KI-LmnaH222P mice with the glutathione precursor N-Acetyl-L-Cysteine. Neuromuscul Disord 2007. [DOI: 10.1016/j.nmd.2007.06.135] [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: 10/22/2022]
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10
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Adamy C, Mulder P, Khouzami L, Andrieu-abadie N, Defer N, Candiani G, Pavoine C, Caramelle P, Souktani R, Le Corvoisier P, Perier M, Kirsch M, Damy T, Berdeaux A, Levade T, Thuillez C, Hittinger L, Pecker F. Neutral sphingomyelinase inhibition participates to the benefits of N-acetylcysteine treatment in post-myocardial infarction failing heart rats. J Mol Cell Cardiol 2007; 43:344-53. [PMID: 17707397 DOI: 10.1016/j.yjmcc.2007.06.010] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2007] [Revised: 05/02/2007] [Accepted: 06/15/2007] [Indexed: 12/19/2022]
Abstract
Deficiency in cellular thiol tripeptide glutathione (L-gamma glutamyl-cysteinyl-glycine) determines the severity of several chronic and inflammatory human diseases that may be relieved by oral treatment with the glutathione precursor N-acetylcysteine (NAC). Here, we showed that the left ventricle (LV) of human failing heart was depleted in total glutathione by 54%. Similarly, 2-month post-myocardial infarction (MI) rats, with established chronic heart failure (CHF), displayed deficiency in LV glutathione. One-month oral NAC treatment normalized LV glutathione, improved LV contractile function and lessened adverse LV remodelling in 3-month post-MI rats. Biochemical studies at two time-points of NAC treatment, 3 days and 1 month, showed that inhibition of the neutral sphingomyelinase (N-SMase), Bcl-2 depletion and caspase-3 activation, were key, early and lasting events associated with glutathione repletion. Attenuation of oxidative stress, downregulation of the pro-inflammatory cytokine tumor necrosis factor-alpha (TNF-alpha) and its TNF-R1 receptor were significant after 1-month NAC treatment. These data indicate that, besides glutathione deficiency, N-SMase activation is associated with post-MI CHF progression, and that blockade of N-SMase activation participates to post-infarction failing heart recovery achieved by NAC treatment. NAC treatment in post-MI rats is a way to disrupt the vicious sTNF-alpha/TNF-R1/N-SMase cycle.
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11
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Perier M, Peyrouzet JM. [Carpipramine (Prazinil) in ambulatory psychiatry. Trials and clinical prospects]. Ann Med Psychol (Paris) 1978; 136:816-24. [PMID: 369429] [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: 12/14/2022]
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12
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Laroche C, Gregoire J, Fraisse B, Perier M. [Misuse of drugs and excess of self-administered drug. The general practitioner and excess of self administered drugs]. Therapie 1972; 27:219-45. [PMID: 5084671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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13
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Verdeaux G, Verdeaux J, Perier M, Bardis L, Letel C. Comparative study of spontaneous sleep and nocturnal sleep under neuroleptics in mental patients. Electroencephalogr Clin Neurophysiol 1967; 23:288. [PMID: 4167955] [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: 01/09/2023]
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14
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Delay J, Deniker P, Perier M, Dalle B. [Importance of delayed-action compounds for management of neuroleptic treatments. (Apropos of fluphenazine enanthate)]. Presse Med (1893) 1967; 75:1243-6. [PMID: 6024177] [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: 01/18/2023]
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15
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Delay J, Deniker P, Perier M, Ginestet D, Sempé JC, Verdeaux G. [Neuro-psychic effects of gamma-hydroxybutyric acid by oral route and by venous route]. Encephale 1965; 54:546-54. [PMID: 5867859] [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: 01/17/2023]
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