A Method for Multimodal IVA Fusion Within a MISA Unified Model Reveals Markers of Age, Sex, Cognition, and Schizophrenia in Large Neuroimaging Studies.

With the increasing availability of large-scale multimodal neuroimaging datasets, it is necessary to develop data fusion methods which can extract cross-modal features. A general framework, multidataset independent subspace analysis (MISA), has been developed to encompass multiple blind source separation approaches and identify linked cross-modal sources in multiple datasets. In this work, we utilized the multimodal independent vector analysis (MMIVA) model in MISA to directly identify meaningful linked features across three neuroimaging modalities-structural magnetic resonance imaging (MRI), resting state functional MRI and diffusion MRI-in two large independent datasets, one comprising of control subjects and the other including patients with schizophrenia.

Differing Pattern of Mismatch Negativity Responses in Clinical and Nonclinical Voice Hearers Challenge Predictive Coding Accounts of Psychosis.

Background: Among people with schizophrenia (PSZ), reduced mismatch negativity (MMN) is conceptualized as evidence of disrupted prediction error signaling that underlies positive symptoms. However, this conceptualization has been challenged by observations that MMN and positive symptoms are often uncorrelated. In the current study, we tested the hypothesis that reduced MMN is associated with the presence of hallucinations and delusions specifically rather than the presence of a psychiatric illness.

A Site-Wise Reliability Analysis of the ABCD Diffusion Fractional Anisotropy and Cortical Thickness: Impact of Scanner Platforms.

The Adolescent Brain and Cognitive Development (ABCD) project is the largest study of adolescent brain development. ABCD longitudinally tracks 11,868 participants aged 9-10 years from 21 sites using standardized protocols for multi-site MRI data collection and analysis. While the multi-site and multi-scanner study design enhances the robustness and generalizability of analysis results, it may also introduce nonbiological variances including scanner-related variations, subject motion, and deviations from protocols.

Plasma neurofilament light chain levels are associated with delirium tremens in patients with alcohol use disorder.

Delirium tremens (DT) is the most severe and life-threatening manifestation of alcohol withdrawal. Prompt identification and treatment are crucial in the clinical management of DT, but laboratory markers in this context are still lacking. Neurofilament light chain (NfL) has been proposed as a novel blood marker of neuroaxonal pathology.

(saffron) and age-related macular degeneration.

Background: Age-related macular degeneration (ARMD) leads to impaired vision and potential blindness. Globally, it accounts for approximately 9% of vision loss cases, and a projected 288 million individuals will be affected by 2040. Current treatments have limitations such as variable effectiveness, high costs, and potential side effects.

Age-related decline in blood-brain barrier function is more pronounced in males than females in parietal and temporal regions.

The blood-brain barrier (BBB) plays a pivotal role in protecting the central nervous system (CNS), and shielding it from potential harmful entities. A natural decline of BBB function with aging has been reported in both animal and human studies, which may contribute to cognitive decline and neurodegenerative disorders. Limited data also suggest that being female may be associated with protective effects on BBB function.

Tobacco Smoking Functional Networks: A Whole-Brain Connectome Analysis in 24,539 Individuals.

Introduction: Nicotine addiction, a multifaceted neuropsychiatric disorder, profoundly impacts brain functions through interactions with neural pathways. Despite its significance, the impact of tobacco smoking on the whole-brain functional connectome remains largely unexplored.

Methods: We conducted a whole-brain analysis on 24,539 adults aged 40 and above from the UK Biobank cohort.

Nongenetic and Genetic Factors Associated with White Matter Brain Aging: Exposome-Wide and Genome-Wide Association Study.

Background/objectives: Human brain aging is a complex process that affects various aspects of brain function and structure, increasing susceptibility to neurological and psychiatric disorders. A number of nongenetic (e.g.

Aberrant salience signaling in auditory processing in schizophrenia: Evidence for abnormalities in both sensory processing and emotional reactivity.

It has been long known that people with schizophrenia (SZ) have deficits in perceptual processing, including in the auditory domain. Furthermore, they often experience increased emotional responsivity and dysregulation, which further impacts overall functioning. Increased emotional responsivity to auditory stimuli is also seen in people with misophonia, a condition in which specific sounds elicit robust negative emotional responses.

Efficacy of swallowing rehabilitative therapies for adults with dysphagia: a network meta-analysis of randomized controlled trials.

Dysphagia leads to poor swallowing function and high risk of aspiration; swallowing rehabilitative therapies including jaw exercises, tongue exercises, chin tuck against resistance (CTAR), Shaker exercises, effortful swallow training (EST), traditional dysphagia therapy (TDT), and respiratory muscle training (RMT) including inspiratory muscle strength training (IMST) and expiratory muscle strength training (EMST) are a crucial part of dysphagia rehabilitation. However, limited evidence exists on the comparative efficacy of swallowing rehabilitative therapies in adults with dysphagia. This is the first network meta-analysis (NMA) to investigate the comparative efficacy of swallowing rehabilitative therapies for adults with dysphagia.

Plasma leptin levels are lower in females, but not males, with ketamine use disorder.

Ketamine has emerged as a prominent substance of misuse. Leptin, an adipocyte-derived polypeptide hormone, has been implicated in the development of addiction. Sex-specific changes in leptin levels have been demonstrated following acute ketamine administration; the persistence of long-term ketamine use on leptin levels is uncertain.

Clinician-Reported Negative Symptom Scales: A Systematic Review of Measurement Properties.

Background: Negative symptoms of schizophrenia are correlated with reduction of normal function and lower quality of life. They were newly defined by the NIMH-MATRICS Consensus in 2005, dividing the rating tools to assess them into first-generation scales, developed before the Consensus, and second-generation scales, based on the recently introduced definitions.

Methods: The COnsensus-based Standards for the selection of health Measurement Instrument (COSMIN) guidelines for systematic reviews were used to evaluate the quality of psychometric data of the first-generation scales that cover the 5 negative symptom domains of the NIMHS Consensus: the Scale for the Assessment of Negative Symptoms (SANS), the High Royds Evaluation of Negativity Scale (HEN), and the Negative Symptom Assessment-16 (NSA-16).

White matter correlates of impulsive behavior in healthy individuals: A diffusion magnetic resonance imaging study.

Aim: To explore white matter (WM) tracts linked to impulsivity using the diffusion magnetic resonance imaging (DMRI) connectometry method.

Methods: We analyzed 218 healthy participants from the Leipzig Study for Mind-Body-Emotion Interactions database. Impulsivity correlations with DMRI-derived WM changes were assessed using Urgency-Premeditation-Perseverance-Sensation (UPPS) Impulsive Behavior Scale subscales: lack of perseverance (PE), lack of premeditation (PM), sensation seeking (SS), and negative urgency.

Association of circulating monocyte number and monocyte-lymphocyte ratio with cardiovascular disease in patients with bipolar disorder.

Background: Cardiovascular disease (CVD) is the leading cause of excessive and premature mortality in patients with bipolar disorder (BD). Despite immune cells participating considerably in the pathogenesis of CVD, limited data are available regarding leukocyte phenotypes in patients with BD and CVD. This study aimed to evaluate associations between circulating leukocyte subset and CVD among patients with BD.

Naproxen adjunct to fluoxetine for moderate-to-severe obsessive-compulsive disorder: A randomized, double-blind, placebo-controlled trial.

Aim: Current treatments for obsessive-compulsive disorder (OCD) encounter resistance and limiting adverse events, necessitating novel therapeutic strategies. This study aimed to investigate the benefits of naproxen, a medication with effects on inflammation and neuronal function, on OCD.

Methods: One hundred and four OCD outpatients with a Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) score of >21 were equally assigned to receive fluoxetine plus either naproxen 250 mg or matched placebo q12hr.

Opposite-Direction Spatial Working Memory Biases in People With Schizophrenia and Healthy Control Participants.

Background: People with schizophrenia (PSZ) show impaired accuracy in spatial working memory (sWM), which is thought to reflect abnormalities in the sustained firing of feature selective neurons that are critical for successful encoding and maintenance processes. Recent research has documented a new source of variance in the accuracy of sWM: In healthy adults, sWM representations are unconsciously biased by previous trials such that current-trial responses are attracted to previous-trial responses (serial dependence). This opens a new window to examine how schizophrenia impacts both the sustained neural firing representing the current-trial target and the longer-term synaptic plasticity that stores previous-trial information.

A breath-based in vitro diagnostic assay for the detection of lower respiratory tract infections.

An accurate diagnosis is critical to reducing mortality in people with lower respiratory tract infections (LRTIs). Current microbiological culture is time-consuming, and nucleic acid amplification-based molecular technologies cannot distinguish between colonization and infection. Previously, we described developing a sampling system for effectively capturing biomolecules from human breath.