{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T15:18:18Z","timestamp":1780327098404,"version":"3.54.1"},"reference-count":57,"publisher":"SAGE Publications","issue":"3","license":[{"start":{"date-parts":[[2022,4,11]],"date-time":"2022-04-11T00:00:00Z","timestamp":1649635200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Journal of Alzheimer\u2019s Disease"],"published-print":{"date-parts":[[2022,5,31]]},"abstract":"<jats:sec specific-use=\"heading-level-1\">\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>\n                      Women account for two thirds of the prevalence and incidence of Alzheimer\u2019s disease (AD) and mild cognitive impairment (MCI). Evidence suggest that sex may differently influence the expression of proteins amyloid-beta (A\u03b2\n                      <jats:sub>1\u201342<\/jats:sub>\n                      ) and tau, for which early detection is crucial in prevention of the disease.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec specific-use=\"heading-level-1\">\n                    <jats:title>Objective:<\/jats:title>\n                    <jats:p>\n                      We investigated the effect of aging and cerebrospinal fluid (CSF) levels of A\u03b2\n                      <jats:sub>1\u201342<\/jats:sub>\n                      and tau on frontal metabolites measured with proton magnetic resonance spectroscopy (MRS) in a cohort of cognitively normal older women and women with MCI.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec specific-use=\"heading-level-1\">\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>\n                      3T single-voxel MRS was performed on the medial frontal cortex, using Point Resolved Spectroscopy (PRESS) and Mescher-Garwood Point Resolved Spectroscopy (MEGA-PRESS) in 120 women (age range 50\u201385). CSF samples of A\u03b2\n                      <jats:sub>1\u201342<\/jats:sub>\n                      and tau and scores of general cognition were also obtained.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec specific-use=\"heading-level-1\">\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>Levels of frontal gamma aminobutyric acid (GABA+) were predicted by age, independently of disease and CSF biomarkers. Importantly, levels of GABA+ were reduced in MCI patients. Additionally, we found that levels of N-acetylaspartate relative to myo-inositol (tNAA\/mI) predicted cognition in MCI patients only and were not related to CSF biomarkers.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec specific-use=\"heading-level-1\">\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>\n                      This study is the first to demonstrate a strong association between frontal GABA+ levels and neurological aging in a sample consisting exclusively of healthy older women with various levels of CSF tau and A\u03b2\n                      <jats:sub>1\u201342<\/jats:sub>\n                      and women with MCI. Importantly, our results show no correlation between CSF biomarkers and MRS metabolites in this sample.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.3233\/jad-215431","type":"journal-article","created":{"date-parts":[[2022,4,12]],"date-time":"2022-04-12T13:19:44Z","timestamp":1649769584000},"page":"1131-1141","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":11,"title":["Frontal Metabolites and Alzheimer\u2019s Disease Biomarkers in Healthy Older Women and Women Diagnosed with Mild Cognitive Impairment"],"prefix":"10.1177","volume":"87","author":[{"given":"Antoine","family":"Hone-Blanchet","sequence":"first","affiliation":[{"name":"Emory University","place":["USA"]},{"name":"Athinoula A. 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