The relationship of regional frontal hypometabolism to executive function: A resting fluorodeoxyglucose PET study of patients with epilepsy and healthy controls

2006 ◽  
Vol 9 (1) ◽  
pp. 58-67 ◽  
Author(s):  
Carrie R. McDonald ◽  
Barbara E. Swartz ◽  
Eric Halgren ◽  
Ashok Patell ◽  
Richard Daimes ◽  
...  
Keyword(s):  
Executive Function ◽  
Healthy Controls ◽  
Patients With Epilepsy ◽  
Relationship Of ◽  
The Relationship ◽  
Fluorodeoxyglucose Pet

scholarly journals Decision making under ambiguity and risk in adolescent-onset schizophrenia

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Dandan Li ◽  
Fengyan Zhang ◽  
Lu Wang ◽  
Yifan Zhang ◽  
Tingting Yang ◽  
...  
Keyword(s):  
Decision Making ◽  
Executive Function ◽  
Iowa Gambling Task ◽  
Clinical Symptoms ◽  
Healthy Controls ◽  
Syndrome Scale ◽  
Significant Difference ◽  
Abnormal Pattern ◽  
Negative Syndrome ◽  
The Relationship

Abstract Objective Numerous studies have identified impaired decision making (DM) under both ambiguity and risk in adult patients with schizophrenia. However, the assessment of DM in patients with adolescent-onset schizophrenia (AOS) has been challenging as a result of the instability and heterogeneity of manifestations. The Iowa Gambling Task (IGT) and Game of Dice Task (GDT), which are frequently used to evaluate DM respectively under ambiguity and risk, are sensitive to adolescents and neuropsychiatric patients. Our research intended to examine the performance of DM in a relatively large sample of patients with AOS using the above-mentioned two tasks. We also aimed to take a closer look at the relationship between DM and symptom severity of schizophrenia. Methods We compared the performance of DM in 71 patients with AOS and 53 well-matched healthy controls using IGT for DM under ambiguity and GDT for DM under risk through net scores, total scores and feedback ration. Neuropsychological tests were conducted in all participants. Clinical symptoms were evaluated by using Positive and Negative Syndrome Scale (PANSS) in 71 patients with AOS. Pearson’s correlation revealed the relationship among total score of DM and clinical and neuropsychological data. Results Compared to healthy controls, patients with AOS failed to show learning effect and had a significant difference on the 5th block in IGT and conducted more disadvantageous choices as well as exhibited worse negative feedback rate in GDT. Apart from DM impairment under risk, diminished DM abilities under ambiguity were found related to poor executive function in AOS in the present study. Conclusions Our findings unveiled the abnormal pattern of DM in AOS, mainly reflected under the risky condition, extending the knowledge on the performance of DM under ambiguity and risk in AOS. Inefficient DM under risk may account for the lagging impulse control and the combined effects of developmental disease. In addition, our study demonstrated that the performance on IGT was related to executive function in AOS.

scholarly journals The Relationship of Psychiatric Symptoms with Performance-Based and Self-Reported Cognitive Function After Ischemic Stroke

2021 ◽  
pp. 1-13
Author(s):  
Elisabeth Kliem ◽  
Elise Gjestad ◽  
Truls Ryum ◽  
Alexander Olsen ◽  
Bente Thommessen ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Executive Function ◽  
Depressive Symptoms ◽  
Cognitive Function ◽  
Psychiatric Symptoms ◽  
Post Stroke ◽  
Cognitive Difficulties ◽  
Memory And Attention ◽  
Relationship Of ◽  
The Relationship

Abstract Objective: Findings on the relationship of psychiatric symptoms with performance-based and self-reported cognitive function post-stroke are inconclusive. We aimed to (1) study the relation of depression and anxiety to performance-based cognitive function and (2) explore a broader spectrum of psychiatric symptoms and their association with performance-based versus self-reported cognitive function. Method: Individuals with supratentorial ischemic stroke performed neuropsychological examination 3 months after stroke. For primary analyses, composite scores for memory and attention/executive function were calculated based on selected neuropsychological tests, and the Hospital Anxiety and Depression Scale (HADS) was used. Psychiatric symptoms and self-reported cognitive function for secondary aims were assessed using the Symptom-Checklist-90 – Revised (SCL-90-R). Results: In a sample of 86 patients [mean (M) age: 64.6 ± 9.2; Mini-Mental State Examination (MMSE), 3–7 days post-stroke: M = 28.4 ± 1.7; National Institutes of Health Stroke Scale (NIHSS) after 3 months: M = 0.7 ± 1.6] depressive symptoms (HADS) were associated with poorer memory performance after controlling for age, sex, and education (p ≤ .01). In a subsample (n = 41; Age: M = 65.7 ± 8.1; MMSE: M = 28.4 ± 1.8; NIHSS: M = 1.0 ± 1.9), symptoms of phobic anxiety (SCL-90-R) were associated with poorer performance-based memory and attention/executive function, and symptoms of anxiety (SCL-90-R) with lower attention/executive function. Higher levels of self-reported cognitive difficulties were associated with higher scores in all psychiatric domains (p ≤ .05). Conclusion: Even in relatively well-functioning stroke patients, depressive symptoms are associated with poorer memory. The results also suggest that various psychiatric symptoms are more related to self-reported rather than to performance-based cognitive function. Screening for self-reported cognitive difficulties may not only help to identify patients with cognitive impairment, but also those who need psychological treatment.

scholarly journals Age-related decline in executive function as a hallmark of cognitive ageing in primates: an overview of cognitive and neurobiological studies

2020 ◽  
Vol 375 (1811) ◽  
pp. 20190618 ◽  
Author(s):  
Agnès Lacreuse ◽  
Naftali Raz ◽  
Daniel Schmidtke ◽  
William D. Hopkins ◽  
James G. Herndon
Keyword(s):  
Executive Function ◽  
Age Differences ◽  
Cognitive Processes ◽  
Life Histories ◽  
Primate Species ◽  
Cognitive Ageing ◽  
Age Related ◽  
Relationship Of ◽  
The Relationship ◽  
Ageing Brain

Executive function (EF) is a complex construct that reflects multiple higher-order cognitive processes such as planning, updating, inhibiting and set-shifting. Decline in these functions is a hallmark of cognitive ageing in humans, and age differences and changes in EF correlate with age-related differences and changes in association cortices, particularly the prefrontal areas. Here, we review evidence for age-related decline in EF and associated neurobiological changes in prosimians, New World and Old World monkeys, apes and humans. While EF declines with age in all primate species studied, the relationship of this decline with age-related alterations in the prefrontal cortex remains unclear, owing to the scarcity of neurobiological studies focusing on the ageing brain in most primate species. In addition, the influence of sex, vascular and metabolic risk, and hormonal status has rarely been considered. We outline several methodological limitations and challenges with the goal of producing a comprehensive integration of cognitive and neurobiological data across species and elucidating how ageing shapes neurocognitive trajectories in primates with different life histories, lifespans and brain architectures. Such comparative investigations are critical for fostering translational research and understanding healthy and pathological ageing in our own species. This article is part of the theme issue ‘Evolution of the primate ageing process’.

The relationship of story grammar and executive function following TBI

Aphasiology ◽  
2011 ◽  
Vol 25 (6-7) ◽  
pp. 826-835 ◽  
Author(s):  
Jennifer Mozeiko ◽  
Karen Le ◽  
Carl Coelho ◽  
Frank Krueger ◽  
Jordan Grafman
Keyword(s):  
Executive Function ◽  
Story Grammar ◽  
Relationship Of ◽  
The Relationship

Urinary matrix metalloproteinases reflect renal damage in anti-neutrophil cytoplasm autoantibody-associated vasculitis

2007 ◽  
Vol 293 (6) ◽  
pp. F1927-F1934 ◽  
Author(s):  
Jan-Stephan F. Sanders ◽  
Minke G. Huitema ◽  
Roeland Hanemaaijer ◽  
Harry van Goor ◽  
Cees G. M. Kallenberg ◽  
...  
Keyword(s):  
Creatinine Clearance ◽  
Disease Activity ◽  
Plasma Levels ◽  
Renal Damage ◽  
Healthy Controls ◽  
Anca Associated Vasculitis ◽  
Tubulointerstitial Damage ◽  
Relationship Of ◽  
The Relationship ◽  
Renal Expression

Renal expression of MMP-2, -9, and tissue inhibitor of MMP-1 (TIMP-1) correlates with histological disease activity in anti-neutrophil cytoplasm autoantibody (ANCA)-associated vasculitis (AAV). We studied whether urinary and plasma levels of MMP-2, -9, and TIMP-1 reflect renal expression of these proteins and renal disease-activity in AAV. Urine and plasma samples of patients with AAV who underwent a renal biopsy were collected ( n = 32). Urinary activity of MMP-2 and -9 was measured by activity assays. Urinary and plasma levels of MMP-2, MMP-9, and TIMP-1 proteins were measured by ELISA. Healthy controls provided plasma and urine for comparison ( n = 31). In patients, the relationship of urinary and plasma levels with renal expression of MMP-2 and MMP-9 and clinical and histological disease activity was studied. Renal MMP expression was compared between patients and controls ( n = 8). Urinary MMP-2 and MMP-9 activity and urinary and plasma TIMP-1 levels were significantly higher in patients than in controls. In glomeruli of patients, both MMP-2 and MMP-9 expression reflected active glomerular inflammation. Urinary activity of MMP-2 and MMP-9 did not correlate with renal MMP expression or plasma levels. Urinary MMP activity correlated negatively with glomerular inflammation, but positively with fibrous crescents. Urinary MMP-2 and TIMP-1 levels showed a positive correlation with tubulointerstitial damage and a negative correlation with creatinine clearance. Urinary MMP-2, MMP-9, and TIMP-1 are elevated in AAV but do not reflect renal MMP expression and glomerular inflammation. However, urinary MMP-2 activity and TIMP-1 levels reflect tubulointerstitial damage and correlate negatively with creatinine clearance at biopsy.

scholarly journals Tryptophan Metabolism, Inflammation, and Oxidative Stress in Patients with Neurovascular Disease

Metabolites ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 208 ◽  
Author(s):  
Martin Hajsl ◽  
Alzbeta Hlavackova ◽  
Karolina Broulikova ◽  
Martin Sramek ◽  
Martin Maly ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Ischemic Stroke ◽  
Study Groups ◽  
Healthy Controls ◽  
Vascular Events ◽  
Liquid Chromatography Tandem Mass ◽  
Important Player ◽  
Hydroxyanthranilic Acid ◽  
Relationship Of ◽  
The Relationship

Atherosclerosis is a leading cause of major vascular events, myocardial infarction, and ischemic stroke. Tryptophan (TRP) catabolism was recognized as an important player in inflammation and immune response having together with oxidative stress (OS) significant effects on each phase of atherosclerosis. The aim of the study is to analyze the relationship of plasma levels of TRP metabolites, inflammation, and OS in patients with neurovascular diseases (acute ischemic stroke (AIS), significant carotid artery stenosis (SCAS)) and in healthy controls. Blood samples were collected from 43 patients (25 with SCAS, 18 with AIS) and from 25 healthy controls. The concentrations of twelve TRP metabolites, riboflavin, neopterin (NEO, marker of inflammation), and malondialdehyde (MDA, marker of OS) were measured by liquid chromatography–tandem mass spectrometry (LC-MS/MS). Concentrations of seven TRP metabolites (TRP, kynurenine (KYN), 3-hydroxykynurenine (3-HK), 3-hydroxyanthranilic acid (3-HAA), anthranilic acid (AA), melatonin (MEL), tryptamine (TA)), NEO, and MDA were significantly different in the studied groups. Significantly lower concentrations of TRP, KYN, 3-HAA, MEL, TA, and higher MDA concentrations were found in AIS compared to SCAS patients. MDA concentration was higher in both AIS and SCAS group (p < 0.001, p = 0.004, respectively) compared to controls, NEO concentration was enhanced (p < 0.003) in AIS. MDA did not directly correlate with TRP metabolites in the study groups, except for 1) a negative correlation with kynurenine acid and 2) the activity of kynurenine aminotransferase in AIS patients (r = −0.552, p = 0.018; r = −0.504, p = 0.033, respectively). In summary, TRP metabolism is clearly more deregulated in AIS compared to SCAS patients; the effect of TRP metabolites on OS should be further elucidated.

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