7 research outputs found

    Évaluation des expositions professionnelles et environnementales chez des patients prĂ©sentant des troubles de la reproduction « Programme MATEREXPO-REPROTOXIF »

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    International audienceIntroductionLe programme MATEREXPO-REPROTOXIF est un programme pilote dĂ©diĂ© Ă  l’évaluation des expositions professionnelles ou environnementales chez des patients prĂ©sentant des troubles de la reproduction. La mise en Ă©vidence d’une exposition Ă  des facteurs de risque reprotoxiques doit permettre la mise en place de mesures de prĂ©vention visant Ă  optimiser les futures grossesses.MĂ©thodeCe programme a Ă©tĂ© mis en place en Île-de-France (IDF) au centre hospitalier intercommunal de CrĂ©teil (CHIC) et Ă  l’hĂŽpital Fernand-Widal, avec le soutien de l’Anses et de l’ARS IDF. Au CHIC, le programme a dĂ©butĂ© en fĂ©vrier 2018 par la prise en charge des patientes prĂ©sentant des pathologies de grossesse et des malformations congĂ©nitales chez les nouveau-nĂ©s, le versant « troubles de la fertilitĂ© » a Ă©tĂ© dĂ©veloppĂ© Ă  partir de septembre 2019. Les couples prĂ©sentant l’un des critĂšres de prise en charge se voient proposer un entretien. Le recueil d’informations est rĂ©alisĂ© par une infirmiĂšre de recherche clinique dĂ©diĂ©e. Le questionnaire, analogue Ă  celui dĂ©veloppĂ© dans le cadre du programme ARTEMIS Ă  Bordeaux, est expertisĂ© par un ingĂ©nieur spĂ©cialisĂ© en hygiĂšne industrielle, ce qui permet d’identifier Ă  partir des situations d’expositions en milieu professionnel ou dans l’environnement gĂ©nĂ©ral, les expositions Ă  des agents reprotoxiques.RĂ©sultatsSur les 15 premiers mois d’activitĂ©, 107 patientes ont pu bĂ©nĂ©ficier d’une consultation environnementale. L’ñge moyen des patientes Ă©tait de 32 ans.Globalement, 20 patientes (18,7 %) n’exerçaient pas d’activitĂ© professionnelle et 87 (81,3 %) Ă©taient en activitĂ© professionnelle pendant leur grossesse. Au moins une exposition professionnelle ayant un retentissement potentiel sur la grossesse a Ă©tĂ© rapportĂ©e chez 48,3 % des patientes exerçant une activitĂ© professionnelle pendant leur grossesse.Concernant les expositions environnementales, au moins une circonstance d’exposition extraprofessionnelle ayant un retentissement potentiel sur la grossesse a Ă©tĂ© rapportĂ©e chez 102 patientes (95,3 %). Le niveau d’exposition est nĂ©anmoins considĂ©rĂ© comme Ă©tant faible chez la plupart des patientes.ConclusionLes donnĂ©es prĂ©liminaires du programme MATEREXPO-REPROTOXIF montrent frĂ©quemment des circonstances d’exposition Ă  des facteurs de risque reprotoxiques dans l’environnement gĂ©nĂ©ral et professionnel des patientes interrogĂ©es.Il est prĂ©vu une poursuite du programme dans le cadre du consortium PREVENIR « PrĂ©vention Environnement Reproduction » dĂ©diĂ© Ă  l’évaluation des expositions environnementales professionnelles et extra-professionnelles chez des patients souffrant de troubles de la reproduction dans 8 centres hospitaliers sur le territoire national

    Repérage des expositions professionnelles au cours des hémopathies lymphoïdes : programme Rhelypro

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    International audienceConclusionLe questionnaire de repĂ©rage proposĂ© paraĂźt avoir des performances (sensibilitĂ©, spĂ©cificitĂ©) satisfaisantes, incitant Ă  l’utiliser dans les services d’hĂ©matologie en routine pour les cas incidents de LNH. En cas de rĂ©ponse positive, une expertise complĂ©mentaire peut ĂȘtre proposĂ©e en pathologie professionnelle dans le cadre du RĂ©seau national de vigilance et de prĂ©vention des pathologies professionnelles

    Repérage des expositions professionnelles au cours des hémopathies lymphoïdes : programme Rhelypro

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    International audienceIntroductionLes lymphomes non hodgkiniens (LNH), les myĂ©lomes multiples (MM) et les leucĂ©mies lymphoĂŻdes chroniques (LLC), hĂ©mopathies malignes dĂ©rivĂ©es de la lignĂ©e lymphoĂŻde, sont des maladies frĂ©quentes et dont l’incidence est en augmentation. Ces affections sont possiblement en rapport avec une exposition environnementale et/ou professionnelle, avec de nombreux agents Ă©tiologiques suspectĂ©s.Le programme Rhelypro, soutenu par l’Anses, a pour but le repĂ©rage des expositions professionnelles aux cancĂ©rogĂšnes considĂ©rĂ©s comme certains ou probables aprĂšs analyse des donnĂ©es de la littĂ©rature chez tous les patients ayant un diagnostic incident de LNH, MM, LLC, Ă  partir d’un questionnaire spĂ©cifique mis en place pour ce programme.MĂ©thodeIl s’agit d’une Ă©tude multicentrique incluant 7 centres de consultation de pathologies professionnelles de CrĂ©teil, Paris - F.-Widal, Bordeaux, Caen, Lille, Toulouse, de juillet 2017 Ă  avril 2019. Tous les cas incidents de LNH, MM et LLC, ont bĂ©nĂ©ficiĂ© d’un questionnaire de repĂ©rage Ă©laborĂ© collectivement par les Ă©quipes de pathologies professionnelles impliquĂ©es, et permettant de lister les principales situations d’exposition aux agents cancĂ©rogĂšnes probables ou certains du Centre international de recherche sur le cancer (CIRC) pour lesquels un excĂšs de LNH, MM ou LLC a Ă©tĂ© rapportĂ©. Un questionnaire professionnel classique Ă©tait ensuite utilisĂ©, suivie d’une expertise en pathologie professionnelle. L’acceptabilitĂ© du questionnaire par les patients, le nombre de sujets faisant l’objet d’une proposition de dĂ©claration de maladie professionnelle et l’identification du type de secteurs d’activitĂ©s et de postes de travail concernĂ©s pour chaque nuisance ont Ă©tĂ© Ă©valuĂ©s.RĂ©sultatsLa population d’étude est constituĂ©e de 205 patients avec un Ăąge moyen de 60 ans. Les 3 nuisances les plus souvent retenues sont les solvants organiques (hors trichloroĂ©thylĂšne, benzĂšne et dichloromĂ©thane), le benzĂšne et les pesticides. Des expositions professionnelles ont Ă©tĂ© retenues pour 21 % des sujets d’aprĂšs l’expertise finale et ont conduit Ă  proposer une demande de reconnaissance de maladie professionnelle. La sensibilitĂ© du questionnaire de repĂ©rage Ă©tait de 92 % et sa spĂ©cificitĂ© de 83 % par rapport au questionnaire de pathologie professionnelle suivi d’expertise.ConclusionLe questionnaire de repĂ©rage proposĂ© paraĂźt avoir des performances (sensibilitĂ©, spĂ©cificitĂ©) satisfaisantes, incitant Ă  l’utiliser dans les services d’hĂ©matologie en routine pour les cas incidents de LNH. En cas de rĂ©ponse positive, une expertise complĂ©mentaire peut ĂȘtre proposĂ©e en pathologie professionnelle dans le cadre du RĂ©seau national de vigilance et de prĂ©vention des pathologies professionnelles

    Clés cliniques et génétiques de l'ataxie cérébelleuse causée par des expansions GAA de FGF14

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    International audienceSCA27B caused by FGF14 intronic heterozygous GAA expansions with at least 250 repeats accounts for 10-60% of cases with unresolved cerebellar ataxia. We aimed to assess the size and frequency of FGF14 expanded alleles in individuals with cerebellar ataxia as compared with controls and to characterize genetic and clinical variability.We sized this repeat in 1876 individuals from France sampled for research purposes in this cross-sectional study: 845 index cases with cerebellar ataxia and 324 affected relatives, 475 controls, as well as 119 cases with spastic paraplegia, and 113 with familial essential tremor.A higher frequency of expanded allele carriers in index cases with ataxia was significant only above 300 GAA repeats (10.1%, n = 85) compared with controls (1.1%, n = 5) (p < 0.0001) whereas GAA250-299 alleles were detected in 1.7% of both groups. Eight of 14 index cases with GAA250-299 repeats had other causal pathogenic variants (4/14) and/or discordance of co-segregation (5/14), arguing against GAA causality. We compared the clinical signs in 127 GAA≄300 carriers to cases with non-expanded GAA ataxia resulting in defining a key phenotype triad: onset after 45 years, downbeat nystagmus, episodic ataxic features including diplopia; and a frequent absence of dysarthria. All maternally transmitted alleles above 100 GAA were unstable with a median expansion of +18 repeats per generation (r2 = 0.44; p < 0.0001). In comparison, paternally transmitted alleles above 100 GAA mostly decreased in size (-15 GAA (r2 = 0.63; p < 0.0001)), resulting in the transmission bias observed in SCA27B pedigrees.SCA27B diagnosis must consider both the phenotype and GAA expansion size. In carriers of GAA250-299 repeats, the absence of documented familial transmission and a presentation deviating from the key SCA27B phenotype, should prompt the search for an alternative cause. Affected fathers have a reduced risk of having affected children, which has potential implications for genetic counseling

    Clés cliniques et génétiques de l'ataxie cérébelleuse causée par des expansions GAA de FGF14

    No full text
    International audienceSCA27B caused by FGF14 intronic heterozygous GAA expansions with at least 250 repeats accounts for 10-60% of cases with unresolved cerebellar ataxia. We aimed to assess the size and frequency of FGF14 expanded alleles in individuals with cerebellar ataxia as compared with controls and to characterize genetic and clinical variability.We sized this repeat in 1876 individuals from France sampled for research purposes in this cross-sectional study: 845 index cases with cerebellar ataxia and 324 affected relatives, 475 controls, as well as 119 cases with spastic paraplegia, and 113 with familial essential tremor.A higher frequency of expanded allele carriers in index cases with ataxia was significant only above 300 GAA repeats (10.1%, n = 85) compared with controls (1.1%, n = 5) (p < 0.0001) whereas GAA250-299 alleles were detected in 1.7% of both groups. Eight of 14 index cases with GAA250-299 repeats had other causal pathogenic variants (4/14) and/or discordance of co-segregation (5/14), arguing against GAA causality. We compared the clinical signs in 127 GAA≄300 carriers to cases with non-expanded GAA ataxia resulting in defining a key phenotype triad: onset after 45 years, downbeat nystagmus, episodic ataxic features including diplopia; and a frequent absence of dysarthria. All maternally transmitted alleles above 100 GAA were unstable with a median expansion of +18 repeats per generation (r2 = 0.44; p < 0.0001). In comparison, paternally transmitted alleles above 100 GAA mostly decreased in size (-15 GAA (r2 = 0.63; p < 0.0001)), resulting in the transmission bias observed in SCA27B pedigrees.SCA27B diagnosis must consider both the phenotype and GAA expansion size. In carriers of GAA250-299 repeats, the absence of documented familial transmission and a presentation deviating from the key SCA27B phenotype, should prompt the search for an alternative cause. Affected fathers have a reduced risk of having affected children, which has potential implications for genetic counseling

    Clinical and genetic keys to cerebellar ataxia due to FGF14 GAA expansionsResearch in context

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    Summary: Background: SCA27B caused by FGF14 intronic heterozygous GAA expansions with at least 250 repeats accounts for 10–60% of cases with unresolved cerebellar ataxia. We aimed to assess the size and frequency of FGF14 expanded alleles in individuals with cerebellar ataxia as compared with controls and to characterize genetic and clinical variability. Methods: We sized this repeat in 1876 individuals from France sampled for research purposes in this cross-sectional study: 845 index cases with cerebellar ataxia and 324 affected relatives, 475 controls, as well as 119 cases with spastic paraplegia, and 113 with familial essential tremor. Findings: A higher frequency of expanded allele carriers in index cases with ataxia was significant only above 300 GAA repeats (10.1%, n = 85) compared with controls (1.1%, n = 5) (p < 0.0001) whereas GAA250–299 alleles were detected in 1.7% of both groups. Eight of 14 index cases with GAA250-299 repeats had other causal pathogenic variants (4/14) and/or discordance of co-segregation (5/14), arguing against GAA causality. We compared the clinical signs in 127 GAA≄300 carriers to cases with non-expanded GAA ataxia resulting in defining a key phenotype triad: onset after 45 years, downbeat nystagmus, episodic ataxic features including diplopia; and a frequent absence of dysarthria. All maternally transmitted alleles above 100 GAA were unstable with a median expansion of +18 repeats per generation (r2 = 0.44; p < 0.0001). In comparison, paternally transmitted alleles above 100 GAA mostly decreased in size (−15 GAA (r2 = 0.63; p < 0.0001)), resulting in the transmission bias observed in SCA27B pedigrees. Interpretation: SCA27B diagnosis must consider both the phenotype and GAA expansion size. In carriers of GAA250-299 repeats, the absence of documented familial transmission and a presentation deviating from the key SCA27B phenotype, should prompt the search for an alternative cause. Affected fathers have a reduced risk of having affected children, which has potential implications for genetic counseling. Funding: This work was supported by the Fondation pour la Recherche MĂ©dicale, grant number 13338 to JLM, the Association ConnaĂźtre les Syndrome CĂ©rĂ©belleux – France (to GS) and by the European Union’s Horizon 2020 research and innovation program under grant agreement No 779257 (“SOLVE-RD” to GS). DP holds a Fellowship award from the Canadian Institutes of Health Research (CIHR). SK received a grant (01GM1905C) from the Federal Ministry of Education and Research, Germany, through the TreatHSP network. This work was supported by the Australian Government National Health and Medical Research Council grants (GNT2001513 and MRFF2007677) to MB and PJL

    Clés cliniques et génétiques de l'ataxie cérébelleuse causée par des expansions GAA de FGF14

    No full text
    International audienceSCA27B caused by FGF14 intronic heterozygous GAA expansions with at least 250 repeats accounts for 10-60% of cases with unresolved cerebellar ataxia. We aimed to assess the size and frequency of FGF14 expanded alleles in individuals with cerebellar ataxia as compared with controls and to characterize genetic and clinical variability.We sized this repeat in 1876 individuals from France sampled for research purposes in this cross-sectional study: 845 index cases with cerebellar ataxia and 324 affected relatives, 475 controls, as well as 119 cases with spastic paraplegia, and 113 with familial essential tremor.A higher frequency of expanded allele carriers in index cases with ataxia was significant only above 300 GAA repeats (10.1%, n = 85) compared with controls (1.1%, n = 5) (p < 0.0001) whereas GAA250-299 alleles were detected in 1.7% of both groups. Eight of 14 index cases with GAA250-299 repeats had other causal pathogenic variants (4/14) and/or discordance of co-segregation (5/14), arguing against GAA causality. We compared the clinical signs in 127 GAA≄300 carriers to cases with non-expanded GAA ataxia resulting in defining a key phenotype triad: onset after 45 years, downbeat nystagmus, episodic ataxic features including diplopia; and a frequent absence of dysarthria. All maternally transmitted alleles above 100 GAA were unstable with a median expansion of +18 repeats per generation (r2 = 0.44; p < 0.0001). In comparison, paternally transmitted alleles above 100 GAA mostly decreased in size (-15 GAA (r2 = 0.63; p < 0.0001)), resulting in the transmission bias observed in SCA27B pedigrees.SCA27B diagnosis must consider both the phenotype and GAA expansion size. In carriers of GAA250-299 repeats, the absence of documented familial transmission and a presentation deviating from the key SCA27B phenotype, should prompt the search for an alternative cause. Affected fathers have a reduced risk of having affected children, which has potential implications for genetic counseling
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