Notes

Microglia Depletion-Induced Upgrading associated with Extracellular Matrix and also Excitatory Synapses in the Hippocampus regarding Grown-up Mice.
Using and combining eye-tracking and EEG frequency band power as process measures, in the current study we were interested in the mental processing demands during learning of text-picture combinations that either enabled or prohibited text-picture integration (TPI). In the mismatch condition, the textual and pictorial information being dissimilar, TPI was not possible, whereas in the match and the partial-match condition, the textual and pictorial information being identical respective complementary, TPI was possible. We expected mental processing demands to be higher in the mismatch condition, when pictorial and textual information had to be processed and memorized as separate representations, compared to the match and partial-match conditions when TPI was possible. As expected, on virtually all process measures we observed increased mental processing demands when two mental representations had to be processed and memorized compared to the two conditions where TPI was possible. The EEG alpha and theta frequency band power data corroborated and extended the eye-tracking measures of mental processing demands. In addition, we performed a fixation-related EEG frequency band power analysis that also corroborated the results of the classic stimulus-locked EEG frequency band power analysis, exemplifying the use of this former methodology in the context of complex multimedia task materials.Worry is a form of repetitive negative thought that is closely associated with anxiety disorders. Worry has been described as anxious apprehension and conceptualized as reflecting heightened anticipation of potentially threatening future events. However, it is unclear whether people who tend to worry show heightened physiological reactivity when anticipating threat, especially if the threat is uncertain. In the current study, community participants (n = 52) completed a threat anticipation task featuring uncertain threat, certain threat, and safety while the startle response to auditory probes was measured. Self-reported tendency to worry was assessed using the Penn State Worry Questionnaire, and anxiety disorder status was assessed via a clinical interview. A repeated-measures general linear model showed a main effect of threat level on the startle response, as well as a significant three-way interaction among threat level, worry, and anxiety disorder status. Follow-up tests showed that higher worry was associated with blunted startle responses to threat but particularly to uncertain threat among participants with a history of anxiety disorders. Worry did not moderate startle responding in participants without a history of anxiety disorders. These results indicate that psychophysiological correlates of worry depend on clinical status and suggest that trait worry is associated with physiological blunting to threat in individuals with a history of anxiety disorders, particularly when threat is uncertain. Implications for theoretical models of worry are discussed.Alterations in error processing are implicated in a range of DSM-defined psychiatric disorders. For instance, obsessive-compulsive disorder (OCD) and generalised anxiety disorder show enhanced electrophysiological responses to errors-i.e. error-related negativity (ERN)-while others like schizophrenia have an attenuated ERN. However, as diagnostic categories in psychiatry are heterogeneous and also highly intercorrelated, the precise mapping of ERN enhancements/impairments is unclear. To address this, we recorded electroencephalograms (EEG) from 196 participants who performed the Flanker task and collected scores on 9 questionnaires assessing psychiatric symptoms to test if a dimensional framework could reveal specific transdiagnostic clinical manifestations of error processing dysfunctions. Contrary to our hypothesis, we found non-significant associations between ERN amplitude and symptom severity of OCD, trait anxiety, depression, social anxiety, impulsivity, eating disorders, alcohol addiction, schizotypy and apathy. A transdiagnostic approach did nothing to improve signal; there were non-significant associations between all three transdiagnostic dimensions (anxious-depression, compulsive behaviour and intrusive thought, and social withdrawal) and ERN magnitude. In these same individuals, we replicated a previously published transdiagnostic association between goal-directed learning and compulsive behaviour and intrusive thought. Possible explanations discussed are (i) that associations between the ERN and psychopathology might be smaller than previously assumed, (ii) that these associations might depend on a greater level of symptom severity than other transdiagnostic cognitive biomarkers, or (iii) that task parameters, such as the ratio of compatible to incompatible trials, might be crucial for ensuring the sensitivity of the ERN to clinical phenomena.
Oxidative stress and inflammation are central in the pathophysiology of light-chain amyloid cardiomyopathy (AL-CM). High-density lipoprotein cholesterol (HDLC) is an antioxidant and acts as an anti-inflammatory regulator. In this study, the prognostic value of serum HDL-C was explored in AL-CM.

In this prospective single-center study, two hundred consecutive patients with biopsy-confirmed light-chain amyloidosis (AL) and cardiac involvement were enrolled. Patients were classified into low or normal serum HDL-C groups (HDL-C<40mg/dL and HDL-C≥40mg/dL, respectively). Univariate and multivariate Cox models were used to identify predictors of survival. Kaplan-Meier analysis was performed to compare survival between patients with low or normal serum HDL-C.

Patients with low serum HDL-C were more likely to present with higher levels of cardiac troponin-T (123.4ng/L vs. 79.1ng/L, p=0.026) and higher levels of N-terminal pro-B-type natriuretic peptide (9146pg/mL vs. 4945pg/mL, p=0.011). Patients were followed for a median follow-up period of 19months, in which 118 (59%) patients died. The median overall survival times for patients with low or normal serum HDL-C were 7 and 16months, respectively (p=0.002). SB505124 Multivariate analysis demonstrated that serum HDL-C (HR 0.984, 95% CI 0.973-0.994, p=0.003) was independently associated with prognosis, after adjusting for nephrotic syndrome, hepatic involvement, nutritional state, renal function, SBP, DBP, serum uric acid, total cholesterol, Mayo AL 2004 stage, and treatment with chemotherapy.

HDL-C is a novel serum biomarker for disease severity and prognosis in light-chain cardiac amyloidosis.
HDL-C is a novel serum biomarker for disease severity and prognosis in light-chain cardiac amyloidosis.
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