Documents in Process

Adult neurogenesis in the subgranular zone (SGZ) has been implicated in cognitive and affective functions. The role of neuroinflammation and reactive microglia in SGZ neurogenesis is not well understood. [...]

With blood-based phosphorylated tau biomarkers soon to be used for diagnosis of Alzheimer disease, analyzing tau levels in other conditions could enhance biomarker interpretability. Moreover, mechanisms of tau release into circulation remain unclear.To evaluate concentrations of phosphorylated and nonphosphorylated tau variants in the blood of patients with multiple traumatic injuries on days 0, 1, 5, and 10 and investigate biological processes driving tau release.This multiple-trauma cohort (injury severity score, ≥18) included 45 severely injured patients with (n = 27) and without (n = 18) moderate-to-severe traumatic brain injury on emergency computed tomographic imaging. [...]

Clinical isolated REM Sleep Behavior Disorder (iRBD) is a prodromal stage of α-synucleinopathies such as Parkinson's disease (PD). Longitudinal changes of gait as a marker of phenoconversion in iRBD have not been systematically evaluated yet. [...]

Automated cerebrospinal fluid (CSF) biomarker assays have largely replaced manual immunoassays for measuring amyloid pathology in CSF. We refitted and validated the ABIDE model, predicting progression from mild cognitive impairment (MCI) to dementia, with CSF measurements from the automated Elecsys platform.We included 2413 MCI participants (998 [41%] amyloid-positive) from seven observational cohorts. [...]

DNA methylation-based classification is now central to contemporary neuro-oncology, as highlighted by the World Health Organization (WHO) classification of central nervous system (CNS) tumors. We present the Heidelberg CNS Tumor Methylation Classifier version 12.8 (v12.8), trained on 7,495 methylation profiles, which expands recognized entities from 91 classes in version 11 (v11) to 184 subclasses. [...]

Aging is a key risk factor for disease in mammals, yet its molecular basis across organs remains unclear. Here, we performed bulk RNA sequencing on eight organs (brain, heart, kidney, liver, lung, skeletal muscle, spleen, testis) from male C57BL/6J mice at distinct life stages. [...]

Alzheimer's disease and coronary artery disease are common late-life chronic conditions and share multiple risk factors, including the apolipoprotein E (APOE) ε4 allele. A meta-analysis of two multidomain lifestyle intervention trials found greater cognitive benefits in APOE4 carriers compared with non-carriers. [...]

Chimeric antigen receptor (CAR) T-cell therapy has transformed the treatment of refractory hematological malignancies but is frequently complicated by immune effector cell-associated neurotoxicity syndrome (ICANS). Early clinical recognition remains challenging, as the commonly used Immune Effector Cell-Associated Encephalopathy (ICE) score lacks sensitivity for subtle deficits.In this prospective bicentric study, 100 patients treated with CAR T-cells at Hannover Medical School and Charité - Universitätsmedizin Berlin underwent systematic neurological assessments using both ICE and the newly developed Berlin-Hannover ICANS Severity Assessment (BHISA). [...]

Intramembrane proteolysis by γ-secretase is critically implicated in Alzheimer disease pathogenesis by processing of its amyloid precursor protein substrate C99 into harmful amyloid-β peptide (Aβ) species. Recruitment of C99 involves binding of its N-terminal extracellular domain to exosites in γ-secretase. [...]

Cerebral small vessel disease (SVD) is a common chronic cerebrovascular disorder with poorly understood pathomechanisms. Genetic studies have identified FOXF2 as a major risk gene for both SVD and stroke. [...]