{"id":189753,"date":"2026-07-04T06:17:26","date_gmt":"2026-07-04T11:47:26","guid":{"rendered":"https:\/\/newslink360.space\/?p=189753"},"modified":"2026-07-04T06:17:26","modified_gmt":"2026-07-04T11:47:26","slug":"inflammation-signatures-linked-to-ad-decline","status":"publish","type":"post","link":"https:\/\/newslink360.space\/?p=189753","title":{"rendered":"Inflammation Signatures Linked to AD Decline"},"content":{"rendered":"


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POORER cognition linked to altered blood-based inflammatory signatures and neurodegeneration\u00a0in Alzheimer\u2019s disease (AD) according to new research investigating immune profiles across a diverse patient cohort. The findings suggest that plasma cytokine patterns could help\u00a0identify\u00a0biological subgroups of patients and support more targeted approaches to immunomodulatory therapies.\u00a0<\/span>\u00a0<\/span><\/p>\n

Study Identifies Distinct Inflammatory Signatures in AD<\/span><\/b>\u00a0<\/span><\/h2>\n

Chronic neuroinflammation is increasingly recognised as a contributor to AD progression, but the variability of immune responses between patients\u00a0remains\u00a0poorly understood. Researchers analysed plasma cytokine profiles, including\u00a0participants\u00a0with amyloid-positive mild cognitive impairment (MCI) or AD and age-matched cognitively unimpaired controls.\u00a0<\/span>\u00a0<\/span><\/p>\n

The study used principal\u00a0component\u00a0analysis to\u00a0identify\u00a0patterns of cytokine co-expression rather than assessing individual inflammatory markers in isolation. Two distinct inflammatory profiles were\u00a0identified, reflecting different relationships between immune activation, neurodegeneration, and cognitive outcomes.\u00a0<\/span>\u00a0<\/span><\/p>\n

Pro-inflammatory Cytokine Profile Associated with Worse Cognition<\/span><\/b>\u00a0<\/span><\/h2>\n

One inflammatory signature was elevated in participants with AD\/MCI and associated with poorer cognition. The profile was driven by pro-inflammatory cytokines including TNF-\u03b1, IL-7, IL-17A, and CXCL5, suggesting broader immune activation.<\/span>\u00a0<\/span><\/p>\n

The association remained independent of key AD biomarkers including p-tau217,\u00a0NfL, and GFAP. Higher levels were also\u00a0observed\u00a0in Black\/African American participants, highlighting the need for diverse cohorts when developing inflammatory biomarkers.<\/span>\u00a0<\/span><\/p>\n

Neurodegeneration May Mediate Effects of Broader Inflammatory Changes<\/span><\/b>\u00a0<\/span><\/h2>\n

A second inflammatory profile was linked to neuroaxonal injury rather than directly to cognition. Markers including TNF receptor II, MIF, IL-16, and CXCL10 suggested a broader inflammatory-remodelling response.\u00a0<\/span>\u00a0<\/span><\/p>\n

Further analysis showed that this profile was linked to increased plasma\u00a0NfL\u00a0levels,\u00a0indicating\u00a0a relationship between immune activation and neuronal damage.\u00a0NfL\u00a0subsequently\u00a0showed an association with poorer cognitive performance, suggesting inflammation may contribute to cognitive decline through neurodegeneration-related pathways.\u00a0<\/span>\u00a0<\/span><\/p>\n

Findings Support Biomarker-Guided Immunotherapy Development<\/span><\/b>\u00a0<\/span><\/h2>\n

The researchers conclude that inflammatory signatures in AD are heterogeneous, with different immune profiles appearing to influence cognition through distinct mechanisms. Rather than a single inflammatory pathway driving disease, the findings suggest that coordinated immune patterns may help explain differences in disease progression.\u00a0<\/span>\u00a0<\/span><\/p>\n

Blood-based inflammatory panels, particularly when combined with established biomarkers such as\u00a0NfL, could support patient stratification in future clinical trials evaluating immune-targeting treatments. However, the authors note that longitudinal studies incorporating imaging and\u00a0additional\u00a0biomarker approaches are needed to\u00a0determine\u00a0whether these inflammatory profiles predict disease progression or treatment response.\u00a0<\/span>\u00a0<\/span><\/p>\n

Reference<\/span><\/b>
Birditt KR et al. Inflammation profiles in Alzheimer\u2019s disease relate to cognition and neurodegeneration.\u00a0Alzheimers\u00a0Dement.\u00a02026;DOI:10.1002\/alz.71642.<\/span>\u00a0<\/span><\/p>\n

Featured Image:\u00a0Orawan\u00a0on Adobe Stock<\/span>\u00a0<\/span><\/p>\n<\/div>\n


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Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

POORER cognition linked to altered blood-based inflammatory signatures and neurodegeneration\u00a0in Alzheimer\u2019s disease (AD) according to new research investigating immune profiles across a diverse patient cohort. The findings suggest that plasma cytokine patterns could help\u00a0identify\u00a0biological subgroups of patients and support more targeted approaches to immunomodulatory therapies.\u00a0\u00a0 Study Identifies Distinct Inflammatory Signatures in AD\u00a0 Chronic neuroinflammation is … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":189754,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[7],"tags":[],"class_list":["post-189753","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-national-news"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/newslink360.space\/wp-content\/uploads\/2026\/07\/12pm-Neuro.jpg","jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":181088,"url":"https:\/\/newslink360.space\/?p=181088","url_meta":{"origin":189753,"position":0},"title":"Shared T Cell Signatures Identified In IBD","author":"Ajay Kumar Verma","date":"June 16, 2026","format":false,"excerpt":"IBD\u00a0linked\u00a0T cell receptor\u00a0(TCR)\u00a0specificity driven by HLA-DRB1 is associated with shared antigen targets and distinct CD4+\u00a0memory T cell signatures across ulcerative colitis and Crohn\u2019s disease. 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