Association between urate-lowering therapies and cognitive decline in community-dwelling older adults
Authors: Molet-Benhamou Luc , Giudici Kelly Virecoulon , de Souto Barreto Philipe , Cantet Christelle , Rolland Yves ,   MAPT/DSA group,   MAPT Study Group,   Principal investigator, Vellas Bruno ,   Coordination, Guyonnet Sophie ,   Project leader, Carrié Isabelle ,   CRA, Brigitte Lauréane ,   Investigators, Faisant Catherine , Lala Françoise , Delrieu Julien , Villars Hélène ,   Psychologists, Combrouze Emeline , Badufle Carole , Zueras Audrey ,   Methodology, statistical analysis and data management, Andrieu Sandrine , Cantet Christelle , Morin Christophe ,   Multidomain group, Abellan van Kan Gabor , Dupuy Charlotte , Rolland Yves , Caillaud Céline , Ousset Pierre-Jean , Lala Françoise , Willis Sherry , Belleville Sylvie , Gilbert Brigitte , Fontaine Francine ,   Co-Investigators in associated centres, Dartigues Jean-François , Marcet Isabelle , Delva Fleur , Foubert Alexandra , Cerda Sandrine , Cuffi Marie-Noëlle , Costes Corinne , Rouaud Olivier , Manckoundia Patrick , Quipourt Valérie , Marilier Sophie , Franon Evelyne , Bories Lawrence , Pader Marie-Laure , Basset Marie-France , Lapoujade Bruno , Faure Valérie , Li Yung Tong Michael , Malick-Loiseau Christine , Cazaban-Campistron Evelyne , Desclaux Françoise , Blatge Colette , Dantoine Thierry , Laubarie-Mouret Cécile , Saulnier Isabelle , Clément Jean-Pierre , Picat Marie-Agnès , Bernard-Bourzeix Laurence , Willebois Stéphanie , Désormais Iléana , Cardinaud Noëlle , Bonnefoy Marc , Livet Pierre , Rebaudet Pascale , Gédéon Claire , Burdet Catherine , Terracol Flavien , Pesce Alain , Roth Stéphanie , Chaillou Sylvie , Louchart Sandrine , Sudres Kristel , Lebrun Nicolas , Barro-Belaygues Nadège , Touchon Jacques , Bennys Karim , Gabelle Audrey , Romano Aurélia , Touati Lynda , Marelli Cécilia , Pays Cécile , Robert Philippe , Le Duff Franck , Gervais Claire , Gonfrier Sébastien , Gasnier Yannick , Bordes Serge , Begorre Danièle , Carpuat Christian , Khales Khaled , Lefebvre Jean-François , El Idrissi Samira Misbah , Skolil Pierre , Salles Jean-Pierre ,   MRI group, Dufouil Carole , Lehéricy Stéphane , Chupin Marie , Mangin Jean-François , Bouhayia Ali , Allard Michèle , Ricolfi Frédéric , Dubois Dominique , Boncoeur-Martel Marie-Paule , Cotton François , Bonafé Alain , Chanalet Stéphane , Hugon Françoise , Bonneville Fabrice , Cognard Christophe , Chollet François ,   PET scans group, Payoux Pierre , Voisin Thierry , Delrieu Julien , Peiffer Sophie , Hitzel Anne , Allard Michèle , Zanca Michel , Monteil Jacques , Darcourt Jacques ,   Medico-economics group, Molinier Laurent , Derumeaux Hélène , Costa Nadège ,   Biological sample collection, Perret Bertrand , Vinel Claire , Caspar-Bauguil Sylvie ,   Safety management, Olivier-Abbal Pascale ,   DSA Group, Andrieu Sandrine , Cantet Christelle , Coley Nicola 
Published: September 2022

AbstractLong-term use of urate-lowering therapies (ULT) may reduce inflammaging and thus prevent cognitive decline during aging. This article examined the association between long-term use of ULT and cognitive decline among community-dwelling older adults with spontaneous memory complaints. We performed a secondary observational analysis using data of 1673 participants ≥ 70 years old from the Multidomain Alzheimer Preventive Trial (MAPT Study), a randomized controlled trial assessing the effect of a multidomain intervention, the administration of polyunsaturated fatty acids (PUFA), both, or placebo on cognitive decline. We compared cognitive decline during the 5-year follow-up between three groups according to ULT (i.e. allopurinol and febuxostat) use: participants treated with ULT during at least 75% of the study period (PT ≥ 75; n = 51), less than 75% (PT < 75; n = 31), and non-treated participants (PNT; n = 1591). Cognitive function (measured by a composite score) was assessed at baseline, 6 months and every year for 5 years. Linear mixed models were performed and results were adjusted for age, sex, body mass index (BMI), diagnosis of arterial hypertension or diabetes, baseline composite cognitive score, and MAPT intervention groups. After the 5-year follow-up, only non-treated participants presented a significant decline in the cognitive composite score (mean change − 0.173, 95%CI − 0.212 to − 0.135; p < 0.0001). However, there were no differences in change of the composite cognitive score between groups (adjusted between-group difference for PT ≥ 75 vs. PNT: 0.144, 95%CI − 0.075 to 0.363, p = 0.196; PT < 75 vs. PNT: 0.103, 95%CI − 0.148 to 0.353, p = 0.421). Use of ULT was not associated with reduced cognitive decline over a 5-year follow-up among community-dwelling older adults at risk of dementia.