2 research outputs found
Ăducation ThĂ©rapeutique du Patient (ETP) dans la maladie dâAlzheimer et les maladies apparentĂ©es en France : Ă©tat des lieux et retours dâexpĂ©rience
Introduction : LâĂducation ThĂ©rapeutique du Patient (ETP) fait partie des approches non mĂ©dicamenteuses proposĂ©es aux patients atteints de maladie dâAlzheimer et maladies apparentĂ©es (MA2). Elle est recommandĂ©e par la Haute AutoritĂ© de santĂ© et les plans Alzheimer mais reste peu dĂ©veloppĂ©e. Objectifs : Nos objectifs sont (i) exposer lâoffre dâETP sâadressant Ă ces patients en France, (ii) recueillir les retours dâexpĂ©rience des professionnels de santĂ©, patients et aidants impliquĂ©s, (iii) dĂ©crire les difficultĂ©s rencontrĂ©es et les pistes proposĂ©es. MĂ©thode : Nous avons rĂ©pertoriĂ© les programmes dâETP validĂ©s par les Agences RĂ©gionales de SantĂ© (ARS) sâadressant aux patients atteints de MA2, ayant rĂ©alisĂ© au moins un cycle dâETP. Les retours dâexpĂ©rience ont Ă©tĂ© recueillis par entretiens semi-dirigĂ©s. RĂ©sultats : Parmi les 49âprogrammes validĂ©s par les ARS, 30ârĂ©pondaient Ă nos critĂšres. Nous avons constatĂ© une grande hĂ©tĂ©rogĂ©nĂ©itĂ© territoriale, organisationnelle et clinique. Ătablir un schĂ©ma dâETP classique auprĂšs dâune population atteinte de troubles cognitifs sâavĂšre complexe, nĂ©anmoins les Ă©quipes sâadaptent. Conclusion : Notre travail souligne la dimension psycho-sociale de lâETP dans le parcours de soin des patients atteints de MA2. Son dĂ©veloppement reste un dĂ©fi et doit ĂȘtre facilitĂ© via une coordination des Ă©quipes et une harmonisation des pratiques portĂ©es entre autres par la FĂ©dĂ©ration des Centres MĂ©moire (FCM)
Penetrance estimation of Alzheimer disease in SORL1 loss-of-function variant carriers using a family-based strategy and stratification by APOE genotypes
International audienceAbstract Background Alzheimer disease (AD) is a common complex disorder with a high genetic component. Loss-of-function (LoF) SORL1 variants are one of the strongest AD genetic risk factors. Estimating their age-related penetrance is essential before putative use for genetic counseling or preventive trials. However, relative rarity and co-occurrence with the main AD risk factor, APOE -Δ4, make such estimations difficult. Methods We proposed to estimate the age-related penetrance of SORL1 -LoF variants through a survival framework by estimating the conditional instantaneous risk combining (i) a baseline for non-carriers of SORL1- LoF variants, stratified by APOE-Δ4 , derived from the Rotterdam study ( N = 12,255), and (ii) an age-dependent proportional hazard effect for SORL1- LoF variants estimated from 27 extended pedigrees (including 307 relatives â„ 40 years old, 45 of them having genotyping information) recruited from the French reference center for young Alzheimer patients. We embedded this model into an expectation-maximization algorithm to accommodate for missing genotypes. To correct for ascertainment bias, proband phenotypes were omitted. Then, we assessed if our penetrance curves were concordant with age distributions of APOE -Δ4-stratified SORL1- LoF variant carriers detected among sequencing data of 13,007 cases and 10,182 controls from European and American case-control study consortia. Results SORL1- LoF variants penetrance curves reached 100% (95% confidence interval [99â100%]) by age 70 among APOE -Δ4Δ4 carriers only, compared with 56% [40â72%] and 37% [26â51%] in Δ4 heterozygous carriers and Δ4 non-carriers, respectively. These estimates were fully consistent with observed age distributions of SORL1- LoF variant carriers in case-control study data. Conclusions We conclude that SORL1- LoF variants should be interpreted in light of APOE genotypes for future clinical applications