scholarly journals No association of serum sTREM2 and MRI-based brain volume in elderly people living in a rural community: a 7-year follow-up study

2020 ◽  
Author(s):  
Ryuzo Orihashi ◽  
Yoshito Mizoguchi ◽  
Yoshiomi Imamura ◽  
Shigeto Yamada ◽  
Akira Monji
Keyword(s):  
Elderly People ◽  
Brain Volume ◽  
Brain Mri ◽  
Serum Levels ◽  
Brain Regions ◽  
Soluble Form ◽  
Clinical Dementia Rating ◽  
Cross Sectional ◽  
Baseline Evaluation

Abstract BackgroundThis study aimed to investigate the association between serum levels of soluble triggering receptor expressed on myeloid cells 2 (sTREM2), a soluble form of an innate immune receptor expressed on the microglia, and brain volume in elderly people.MethodsThe survey was conducted twice in Kurokawa-cho, Imari, Saga Prefecture, Japan, among people aged 65 years and older. We collected data from 596 residents. Serum sTREM2 level measurements, brain MRI, Mini-Mental State Examination (MMSE), and Clinical Dementia Rating (CDR) were performed at Time 1 (2009–2011). Follow-up brain MRI, MMSE, and CDR were performed at Time 2 (2016–2017). The interval between Time 1 and Time 2 was approximately 7 years. Sixty-nine participants (16 men, mean age 72.69 ± 3.18 years; 53 women, mean age 72.68 ± 4.64 years) completed this study. We analyzed the correlation between serum sTREM2 levels (Time 1) and brain volume (Time 1, Time 2, and Time 1–Time 2 difference) using voxel-based morphometry implemented with Statistical Parametric Mapping.ResultsParticipants in this study had lower MMSE and CDR scores 7 years after the baseline evaluation. However, analyses at the cluster level by applying multiple comparison corrections (family wise error; P < 0.05) showed no correlation between serum sTREM2 levels and volume of different brain regions, either cross-sectional or longitudinal. ConclusionsSerum sTREM2 level could not serve as an immune biomarker of aging-related volume changes in brain regions closely related to cognitive function in elderly people aged 65 years and above.

scholarly journals Association Between sTREM2, an Immune Biomarker of Microglial Activation, and Aging-Related Brain Volume Changes in Community-Dwelling Older Adults: A 7-Year Follow-Up Study

2021 ◽  
Vol 13 ◽  
Author(s):  
Ryuzo Orihashi ◽  
Yoshito Mizoguchi ◽  
Yoshiomi Imamura ◽  
Shigeto Yamada ◽  
Akira Monji
Keyword(s):  
Older Adults ◽  
Brain Volume ◽  
Brain Mri ◽  
Statistical Parametric Mapping ◽  
Brain Regions ◽  
Community Dwelling ◽  
Soluble Form ◽  
Volume Changes ◽  
Clinical Dementia Rating

BackgroundThis study aimed to investigate the association between serum levels of soluble triggering receptor expressed on myeloid cells 2 (sTREM2), a soluble form of an innate immune receptor expressed on the microglia, and brain volume in older adults.MethodsThe survey was conducted twice in Kurokawa-cho, Imari, Saga Prefecture, Japan, among people aged 65 years and older. We collected data from 596 residents. Serum sTREM2 level measurements, brain MRI, Mini-Mental State Examination (MMSE), and clinical dementia rating (CDR) were performed at Time 1 (2009–2011). Follow-up brain MRI, MMSE, and CDR were performed at Time 2 (2016–2017). The interval between Time 1 and Time 2 was approximately 7 years. Sixty-nine participants (16 men, mean age 72.69 ± 3.18 years; 53 women, mean age 72.68 ± 4.64 years) completed this study. We analyzed the correlation between serum sTREM2 levels (Time 1) and brain volume (Time 1, Time 2, and Time 1–Time 2 difference) using voxel-based morphometry implemented with Statistical Parametric Mapping.ResultsParticipants in this study had lower MMSE and higher CDR scores 7 years after the baseline evaluation. However, analyses at the cluster level by applying multiple comparison corrections (family wise error; P &lt; 0.05) showed no correlation between serum sTREM2 levels and volume of different brain regions, either cross-sectional or longitudinal.ConclusionSerum sTREM2 level could not serve as an immune biomarker of aging-related volume changes in brain regions closely related to cognitive function in older adults aged 65 years and above.

scholarly journals Oxytocin and elderly MRI-based hippocampus and amygdala volume: a 7-year follow-up study

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Ryuzo Orihashi ◽  
Yoshito Mizoguchi ◽  
Yoshiomi Imamura ◽  
Shigeto Yamada ◽  
Takefumi Ueno ◽  
...  
Keyword(s):  
Elderly People ◽  
Mental State ◽  
Mini Mental State Examination ◽  
Brain Volume ◽  
Brain Mri ◽  
Statistical Parametric Mapping ◽  
Clinical Dementia Rating ◽  
Amygdala Volume ◽  
State Examination

Abstract Oxytocin is deeply involved in human relations. In recent years, it is becoming clear that oxytocin is also involved in social cognition and social behaviour. Oxytocin receptors are also thought to be present in the hippocampus and amygdala, and the relationship between oxytocin and the structure and function of the hippocampus and amygdala has been reported. However, a few studies have investigated oxytocin and its relationship to hippocampus and amygdala volume in elderly people. The aim of this study is to investigate the association between serum oxytocin levels and hippocampus and amygdala volume in elderly people. The survey was conducted twice in Kurokawa-cho, Imari, Saga Prefecture, Japan, among people aged 65 years and older. We collected data from 596 residents. Serum oxytocin level measurements, brain MRI, Mini–Mental State Examination and Clinical Dementia Rating were performed in Time 1 (2009–11). Follow-up brain MRI, Mini–Mental State Examination and Clinical Dementia Rating were performed in Time 2 (2016–17). The interval between Time 1 and Time 2 was about 7 years. Fifty-eight participants (14 men, mean age 72.36 ± 3.41 years, oxytocin 0.042 ± 0.052 ng/ml; 44 women, mean age 73.07 ± 4.38 years, oxytocin 0.123 ± 0.130 ng/ml) completed this study. We analysed the correlation between serum oxytocin levels (Time 1) and brain volume (Time 1, Time 2 and Times 1–2 difference) using voxel-based morphometry implemented with Statistical Parametric Mapping. Analysis at the cluster level (family-wise error; P &lt; 0.05) showed a positive correlation between serum oxytocin levels (Time 1) and brain volume of the region containing the left hippocampus and amygdala (Time 2). This result suggests that oxytocin in people aged 65 years and older may be associated with aging-related changes in hippocampus and amygdala volume.

scholarly journals Atrial Fibrillation and Brain Magnetic Resonance Imaging Abnormalities

Stroke ◽  
2019 ◽  
Vol 50 (4) ◽  
pp. 783-788 ◽  
Author(s):  
Jeremy P. Berman ◽  
Faye L. Norby ◽  
Thomas Mosley ◽  
Elsayed Z. Soliman ◽  
Rebecca F. Gottesman ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Brain Volume ◽  
Brain Mri ◽  
Brain Magnetic Resonance Imaging ◽  
White Matter Hyperintensity ◽  
Resonance Imaging ◽  
Total Brain Volume ◽  
Cross Sectional ◽  
Total Brain ◽  
Sectional Analysis

Background and Purpose— Atrial fibrillation (AF) is associated with dementia independent of clinical stroke. The mechanisms underlying this association remain unclear. In a community-based cohort, the ARIC study (Atherosclerosis Risk in Communities), we evaluated (1) the longitudinal association of incident AF and (2) the cross-sectional association of prevalent AF with brain magnetic resonance imaging (MRI) abnormalities. Methods— The longitudinal analysis included 963 participants (mean age, 73±4.4 years; 62% women; 51% black) without prevalent stroke or AF who underwent a brain MRI in 1993 to 1995 and a second MRI in 2004 to 2006 (mean, 10.6±0.8 years). Outcomes included subclinical cerebral infarctions, sulcal size, ventricular size, and, for the cross-sectional analysis, white matter hyperintensity volume and total brain volume. Results— In the longitudinal analysis, 29 (3.0%) participants developed AF after the first brain MRI. Those who developed AF had higher odds of increase in subclinical cerebral infarctions (odds ratio [OR], 3.08; 95% CI, 1.39–6.83), worsening sulcal grade (OR, 3.56; 95% CI, 1.04–12.2), and worsening ventricular grade (OR, 9.34; 95% CI, 1.24–70.2). In cross-sectional analysis, of 969 participants, 35 (3.6%) had prevalent AF at the time of the 2004 to 2006 MRI scan. Those with AF had greater odds of higher sulcal (OR, 3.9; 95% CI, 1.7–9.1) and ventricular grade (OR, 2.4; 95% CI, 1.0–5.7) after multivariable adjustment and no difference in white matter hyperintensity or total brain volume. Conclusions— AF is independently associated with increase in subclinical cerebral infarction and worsening sulcal and ventricular grade—morphological changes associated with aging and dementia. More research is needed to define the mechanisms underlying AF-related neurodegeneration.

Functional brain-imaging correlates of negative affectivity and the onset of first-episode depression

2014 ◽  
Vol 45 (5) ◽  
pp. 1001-1009 ◽  
Author(s):  
C. G. Davey ◽  
S. Whittle ◽  
B. J. Harrison ◽  
J. G. Simmons ◽  
M. L. Byrne ◽  
...  
Keyword(s):  
Negative Affectivity ◽  
Brain Regions ◽  
Functional Brain Imaging ◽  
Anterior Cingulate ◽  
First Episode ◽  
Resting State Functional Connectivity ◽  
Cross Sectional ◽  
Positive Correlation ◽  
Fmri Study

Background.The amygdala and subgenual anterior cingulate cortex (sACC) are key brain regions for the generation of negative affect. In this longitudinal fMRI study of adolescents we investigated how amygdala–sACC connectivity was correlated with negative affectivity (NA) both cross-sectionally and longitudinally, and examined its relationship to the onset of first-episode depression.Method.Fifty-six adolescents who were part of a larger longitudinal study of adolescent development were included. They had no history of mental illness at the time of their baseline scan (mean age 16.5 years) and had a follow-up scan 2 years later (mean age 18.8 years). We used resting-state functional-connectivity MRI to investigate whether cross-sectional and change measures of amygdala–sACC connectivity were (i) correlated with NA and its change over time, and (ii) related to the onset of first-episode depression.Results.The magnitude of amygdala connectivity with sACC showed significant positive correlation with NA at both time-points. Further analysis confirmed that change in amygdala–sACC connectivity between assessments was correlated with change in NA. Eight participants developed a first episode of depression between the baseline and follow-up assessments: they showed increased amygdala–sACC connectivity at follow-up.Conclusions.Amygdala–sACC connectivity is associated with NA in adolescence, with change in connectivity between these regions showing positive correlation with change in NA. Our observation that the onset of depression was associated with an increase in connectivity between the regions provides support for the neurobiological ‘scar’ hypothesis of depression.

A case of cerebral aquaporinopathy

2010 ◽  
Vol 16 (10) ◽  
pp. 1252-1254 ◽  
Author(s):  
A. Tanaka ◽  
T. Yoshida ◽  
T. Yamada ◽  
R. Isayama ◽  
Y. Fujiwara ◽  
...  
Keyword(s):  
Area Postrema ◽  
Brain Mri ◽  
Transverse Myelitis ◽  
Brain Regions ◽  
Abnormal Signal ◽  
Spinal Mri ◽  
Magnetic Resonance Imaging Mri ◽  
Antibody Levels ◽  
Dorsal Medulla

A 35-year-old woman was hospitalized due to impaired consciousness. Magnetic resonance imaging (MRI) revealed multiple parenchymal lesions in supra and infratentorial brain regions, which were considered responsible for her declining consciousness level. She was treated with intravenous methylprednisolone. Neurological symptoms improved and she was discharged. She was readmitted 14 months later due to intractable hiccups. A follow-up brain MRI revealed an abnormal signal near the area postrema in the dorsal medulla. Serum aquaporin-4 antibody levels were positive, but there were no visual manifestations or myelitis. Spinal MRI was negative for longitudinally extended transverse myelitis throughout the clinical course.

scholarly journals Evolution of short cognitive test performance in stroke patients with vascular cognitive impairment and vascular dementia: Baseline evaluation and follow-up

2017 ◽  
Vol 11 (4) ◽  
pp. 381-388 ◽  
Author(s):  
Nilton Custodio ◽  
Rosa Montesinos ◽  
David Lira ◽  
Eder Herrera-Perez ◽  
Yadira Bardales ◽  
...  
Keyword(s):  
Cognitive Impairment ◽  
Vascular Dementia ◽  
Cognitive Performance ◽  
Vascular Cognitive Impairment ◽  
Cognitive Test ◽  
Stroke Patients ◽  
Clinical Dementia Rating ◽  
Baseline Evaluation ◽  
Box Plot

ABSTRACT. There is limited evidence about the progression of cognitive performance during the post-stroke stage. Objective: To assess the evolution of cognitive performance in stroke patients without vascular cognitive impairment (VCI), patients with vascular mild cognitive impairment (MCI), and patients with vascular dementia (VD). Methods: A prospective cohort of stroke outpatients from two secondary medical centers in Lima, Peru was studied. We performed standardized evaluations at definitive diagnosis (baseline evaluation), and control follow-ups at 6 and 12 months, including a battery of short cognitive tests: Clinical Dementia Rating (CDR), Addenbrooke's Cognitive Examination (ACE), and INECO Frontal Screening (IFS). Results: 152 outpatients completed the follow-up, showing progressive increase in mean score on the CDR(0.34 to 0.46), contrary to the pattern observed on the ACE and IFS (78.18 to 76.48 and 23.63 to 22.24). The box plot for the CDR test showed that VCI patients had progressive worsening (0.79 to 0.16). Conversely, this trend was not observed in subjects without VCI. The box plot for the ACE and IFS showed that, for the majority of the differentiated stroke types, both non-VCI and VCI patients had progressive worsening. Conclusion: According to both ACE and IFS results during a 1-year follow-up, the cognitive performance of stroke patients worsened, a trend which was particularly consistent in infarction-type stroke patients.

Association between MRI parameters and the MS severity scale: a 12 year follow-up study

2009 ◽  
Vol 15 (5) ◽  
pp. 632-637 ◽  
Author(s):  
A Minneboo ◽  
BMJ Uitdehaag ◽  
P Jongen ◽  
H Vrenken ◽  
DL Knol ◽  
...  
Keyword(s):  
Disease Severity ◽  
Predictive Value ◽  
Brain Mri ◽  
Multiple Regression Model ◽  
Lesion Load ◽  
Term Outcome ◽  
Cross Sectional ◽  
Relapsing Remitting ◽  
Magnetic Resonance Imaging Mri

Background Several magnetic resonance imaging (MRI) parameters are known to be associated with short-term outcome in multiple sclerosis (MS) patients. MS-related disability typically progresses over decades, stressing the need for longer follow-up studies. Until now, these studies are relatively sparse and, therefore, the predictive value of MRI parameters for clinical disability remains largely unknown. Objective To assess the predictive value of brain MRI parameters, which are obtained during the first 3.3 years of the study for overall disease severity as measured by the MS Severity Score (MSSS) after 12.2 years follow-up. Methods Forty-six MS patients were included in the study. MRI parameters included both lesion loads and atrophy measures. Average and change parameters were calculated for MRI parameters and subsequently used as independent variables in regression models, while MSSS was the dependent variable. Results Follow-up (FU) was obtained in 43/46 patients (94%) and median expanded disability status scale (EDSS) score increased significantly from 2.5 to 4.0. At last FU median MSSS was 4.3 (range 2.2–6.9). In univariate analyses, both change and cross-sectional T1-hypointense lesion load and ventricular atrophy measures were associated with MSSS. A multiple regression model included the change parameter of hypointense T1-lesion load (BHLL). This model explained 20% of variance in MSSS, which increased to 34% when type of disease (relapsing remitting or secondary progressive), age, and sex were entered additionally. Conclusion MRI measures of axonal loss are associated with higher overall disease severity in MS patients.

Patients with chronic mild or moderate traumatic brain injury have abnormal longitudinal brain volume enlargement more than atrophy

2021 ◽  
Vol 5 ◽  
pp. 205970022110180
Author(s):  
David E Ross ◽  
John D Seabaugh ◽  
Jan M Seabaugh ◽  
Jennifer Plumley ◽  
Junghoon Ha ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Brain Volume ◽  
Brain Regions ◽  
Posterior Cingulate Cortex ◽  
Longitudinal Change ◽  
Cross Sectional ◽  
Mri Brain ◽  
Moderate Traumatic Brain Injury ◽  
Normal Controls

Introduction Many studies have found brain atrophy in patients with traumatic brain injury (TBI), but most of those studies examined patients with moderate or severe TBI. A few recent studies in patients with chronic mild or moderate TBI found abnormally large brain volume. Some of these studies used NeuroQuant®, FDA-cleared software for measuring MRI brain volume. It is not known if the abnormal enlargement occurs before or after injury. The purpose of the current study was to test the hypothesis that it occurs after injury. Methods 55 patients with chronic mild or moderate TBI were compared to NeuroQuant® normal controls ( n > 4000) with respect to MRI brain volume change from before injury (time 0 [t0], estimated volume) to after injury (t1, measured volume). A subset of 36 patients were compared to the normal controls with respect to longitudinal change of brain volume after injury from t1 to t2. Results The patients had abnormally fast increase of brain volume for multiple brain regions, including whole brain, cerebral cortical gray matter, and subcortical regions. Discussion This is the first report of extensive abnormal longitudinal brain volume enlargement in patients with TBI. In particular, the findings suggested that the previously reported findings of cross-sectional brain volume abnormal enlargement were due to longitudinal enlargement after, not before, injury. Abnormal longitudinal enlargement of the posterior cingulate cortex correlated with neuropathic headaches, partially replicating a previously reported finding that was associated with neuroinflammation.

scholarly journals Polychlorinated biphenyls, glycaemia and diabetes in a population living in a highly polychlorinated biphenyls-polluted area in northern Italy: a cross-sectional and cohort study

2013 ◽  
Vol 2 (1) ◽  
pp. 2 ◽  
Author(s):  
Claudia Zani ◽  
Francesco Donato ◽  
Michele Magoni ◽  
Donatella Feretti ◽  
Loredana Covolo ◽  
...  
Keyword(s):  
Regression Analysis ◽  
Cohort Study ◽  
Polychlorinated Biphenyls ◽  
Serum Levels ◽  
Northern Italy ◽  
Local Health Authority ◽  
Cross Sectional ◽  
Pcb Congeners ◽  
Incident Cases

<em>Background</em>. Polychlorinated biphenyls (PCBs) have been found to be associated with diabetes in some, but not all, studies performed so far. The aim of this study was to assess the association between PCB serum levels and glycaemia and diabetes in people living in Brescia, a highly industrialised PCB-polluted town in Northern Italy. <em>Design and Methods</em>. 527 subjects were enrolled in a cross-sectional population-based study: they were interviewed face-to-face in 2003 and also provided a blood sample under fasting conditions. The concentration of 24 PCB congeners was determined using gas-chromatography (GC/MS). Subsequently, all subjects were included in a follow-up (cohort) study. According to the Local Health Authority health-care database, subjects were considered to be diabetic if they had diabetes at interview time (prevalent cases) or during a 7-year follow-up (incident cases). <em>Results</em>. A total of 53 subjects (10.0%) were diabetics: 28 had dia- betes at enrolment and other 25 developed the disease subsequently. Diabetes frequency increased according to the serum concentrations of total PCBs and single PCB congeners, but no association was found when estimates were adjusted for education, body mass index, age and gender by logistic regression analysis. Accordingly, glycaemia increased with PCB serum levels, but no association was observed when multiple regression analysis, including confounding factors, was performed. Conclusions. This study does not support the hypothesis that PCB environmental exposure is strictly associated with diabetes or glycaemia.

scholarly journals The Oxidative and Inflammatory State in Patients with Acute Renal Graft Dysfunction Treated with Tacrolimus

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Sandra Carrillo-Ibarra ◽  
José Ignacio Cerrillos-Gutiérrez ◽  
Ariadna Escalante-Núñez ◽  
Enrique Rojas-Campos ◽  
Benjamín Gómez-Navarro ◽  
...  
Keyword(s):  
Serum Levels ◽  
Cross Sectional Study ◽  
Graft Dysfunction ◽  
C Reactive Protein ◽  
Sod Activity ◽  
Cross Sectional ◽  
Reactive Protein ◽  
Inflammatory State ◽  
Oxidative State

Objective.To determine the oxidative stress/inflammation behavior in patients with/without acute graft dysfunction (AGD) with Tacrolimus.Methods.Cross-sectional study, in renal transplant (RT) recipients (1-yr follow-up). Patients with AGD and without AGD were included. Serum IL-6, TNF-α, 8-isoprostanes (8-IP), and Nitric Oxide (NO) were determined by ELISA; C-reactive protein (CRP) was determined by nephelometry; lipid peroxidation products (LPO) and superoxide dismutase (SOD) were determined by colorimetry.Results.The AGD presentation was at 5.09 ± 3.07 versus 8.27 ± 3.78 months (p<0.001); CRP >3.19 mg/L was found in 21 versus 19 in the N-AGD group (p=0.83); TNF-α145.53 ± 18.87 pg/mL versus 125.54 ± 15.92 pg/mL in N-AGD (p=0.64); IL-6 2110.69 ± 350.97 pg/mL versus 1933.42 ± 235.38 pg/mL in N-AGD (p=0.13). The LPO were higher in AGD (p=0.014): 4.10 ± 0.69 µM versus 2.41 ± 0.29 µM; also levels of 8-IP were higher in AGD 27.47 ± 9.28 pg/mL versus 8.64 ± 1.54 pg/mL (p=0.01). Serum levels of NO in AGD were lower 138.44 ± 19.20 µmol/L versus 190.57 ± 22.04 µmol/L in N-AGD (p=0.042); antioxidant enzyme SOD activity was significantly diminished in AGD with 9.75 ± 0.52 U/mL versus 11.69 ± 0.55 U/mL in N-AGD (p=0.012).Discussion.Patients with RT present with a similar state of the proinflammatory cytokines whether or not they have AGD. The patients with AGD showed deregulation of the oxidative state with increased LPO and 8-IP and decreased NO and SOD.

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