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1.
Front Pain Res (Lausanne) ; 5: 1374324, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38818235

RESUMO

Introduction: In psychotherapy, it is important to establish and deepen a therapeutic trusting relationship, but patients who have experienced extreme adversity in childhood tend to have difficulty in building such a relationship. This paper reports a case of fibromyalgia with adverse childhood experiences (ACEs) in which a nonverbal approach was successful in building a trusting relationship. Case and methods: The patient is a woman in her late 40s. She had strong anger rooted in ACEs, including neglect by her father, a feeling of unfair parenting by her mother compared to her younger brother, overcontrol of her life by her mother, and sexual abuse by her uncle. She was filled with strong interpersonal distrust and anger, and the experience of an unsuccessful surgery compounded her distrust of medical care. The therapist initially had severe difficulty in verbal interaction with the patient. When conducting "drawing" therapy, she ignored the therapist's comments and completely blacked out the drawing paper. However, the patient-therapist relationship gradually changed, and verbal interaction became possible through the use of nonverbal approaches such as framing her drawing paper and "Towel Baby Holding." Results: The therapist was able to understand the patient's emotions through these nonverbal approaches and to communicate with the patient that she understood her feelings. This approach was also successful in the patient's understanding of her own pathology. The patient became able to honestly express her feelings in words, which eventually enabled her to be introduced to mindfulness therapy, leading to a favorable treatment course. Conclusion: For patients with ACEs, a nonverbal approach helps build a therapeutic relationship and plays an important role in understanding the patient.

2.
Artigo em Inglês | MEDLINE | ID: mdl-38452153

RESUMO

Several population-based studies have reported that higher serum N-terminal pro-brain natriuretic peptide (NT-proBNP) levels are associated with brain morphological changes. However, no population-based studies have examined the relationship between serum NT-proBNP and various regional brain volumes in detail. We here analyzed the brain MRI data of 1 201 community-dwelling Japanese aged ≥65 years. Regional gray matter volumes (GMV) and intracranial volume (ICV) were estimated by applying voxel-based morphometry (VBM) methods. The associations of serum NT-proBNP with regional GMV/ICV were examined by analysis of covariance. The regional gray matter atrophy patterns associated with elevated serum NT-proBNP levels were investigated using VBM without a priori regions of interest. The multivariable-adjusted means of the frontal, temporal, hippocampal, parahippocampal, and entorhinal GMV/ICV decreased significantly with elevated serum NT-proBNP levels (all p for trend and q values of false discovery rate correction < .05). In VBM, elevated serum NT-proBNP levels were correlated with atrophy of the bilateral hippocampi, bilateral amygdalas, bilateral parahippocampal gyri, bilateral entorhinal areas, bilateral fusiform gyri, left middle temporal gyrus, left inferior temporal gyrus, right central operculum, right posterior orbital gyrus, bilateral middle frontal gyri, anterior cingulate gyrus and bilateral medial frontal cortices. In a sensitivity analysis excluding 254 participants with mild cognitive impairment or dementia, serum NT-proBNP levels were correlated with atrophy of the bilateral hippocampi, bilateral amygdalas, bilateral parahippocampal gyri, bilateral fusiform gyri, and left middle frontal gyrus. Our data suggest that elevated serum NT-proBNP levels are associated with gray matter atrophy in brain regions that play an important role in cognitive function.


Assuntos
Substância Cinzenta , Peptídeo Natriurético Encefálico , Fragmentos de Peptídeos , Humanos , Substância Cinzenta/diagnóstico por imagem , Substância Cinzenta/patologia , Japão , Encéfalo/diagnóstico por imagem , Encéfalo/patologia , Imageamento por Ressonância Magnética/métodos , Atrofia
3.
Eur J Pain ; 28(5): 831-844, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38102889

RESUMO

BACKGROUND: Autonomic nervous system dysfunction has been reported to be associated with impaired activities of daily living (ADL) among patients with chronic pain, but the association has not been fully addressed in general populations. This study cross-sectionally investigated the association between autonomic nervous system function and the presence of subjective symptoms affecting ADL in community-dwelling residents with chronic pain. METHODS: A total of 888 residents with chronic pain, aged 40-79 years, who underwent a health examination in 2017-2018 were included. Based on heart rate variability measured by fingertip pulse wave, the standard deviation of normal-to-normal intervals (SDNN), root mean square of successive RR interval differences (RMSSD), low frequency (LF) power, and high frequency (HF) power were calculated. Symptoms affecting ADL were defined as those scoring ≥1 on the modified Rankin Scale. Odds ratios (ORs) and their 95% confidence intervals (CIs) for symptoms affecting ADL were estimated using a logistic regression analysis. RESULTS: The overall prevalence of symptoms affecting ADL was 39.4%. The ORs for symptoms affecting ADL increased significantly per 1-standard-deviation decrement in log-transformed SDNN (OR 1.23 [95% CI 1.06-1.44]), RMSSD (1.25 [1.08-1.45]), LF power (1.29 [1.11-1.52]), and HF power (1.29 [1.11-1.51]) after adjusting for age, sex, education, hypertension, diabetes, serum total cholesterol level, body mass index, past medical history, current smoking, current drinking, exercise, depressive symptoms, and pain intensity. CONCLUSIONS: Decreased heart rate variability was associated with the presence of symptoms affecting ADL among individuals with chronic pain in a Japanese community. SIGNIFICANCE: Decrease in heart rate variability was associated with the presence of symptoms affecting ADL among individuals with chronic pain in a Japanese community. This article could help scientists understand the significance of autonomic nervous system dysfunction in the pathology of chronic pain. Approaches that target autonomic nervous system dysfunction may be an option to relieve or prevent symptoms affecting ADL for chronic pain sufferers.


Assuntos
Atividades Cotidianas , Dor Crônica , Humanos , Frequência Cardíaca/fisiologia , Dor Crônica/epidemiologia , Vida Independente , Sistema Nervoso Autônomo
5.
Biopsychosoc Med ; 17(1): 36, 2023 Oct 24.
Artigo em Inglês | MEDLINE | ID: mdl-37875931

RESUMO

Fibromyalgia (FM) is a disease characterized by chronic widespread pain concomitant with psychiatric symptoms such as anxiety and depression. It has been reported that FM patients engage in pain catastrophizing. In this study, we investigated characteristics of the brain volume of female FM patients and the association between psychological indices and brain volume. Thirty-nine female FM patients and 25 female healthy controls (HCs) were recruited for the study, and five FM patients were excluded due to white matter lesions. The following analyses were performed: (1) T1-weighted MRI were acquired for 34 FM patients (age 41.6 ± 7.4) and 25 HCs (age 39.5 ± 7.4). SPM12 was used to compare their gray and white matter volumes. (2) Data from anxiety and depression questionnaires (State-Trait Anxiety Inventory and Hospital Anxiety and Depression Scale), the Pain Catastrophizing Scale (subscales rumination, helplessness, magnification), and MRI were acquired for 34 FM patients (age 41.6 ± 7.4). Correlation analysis was done of the psychological indices and brain volume. We found that (1) The white matter volume of the temporal pole was larger in the FM patient group than in the HC group. (2) Correlation analysis of the psychological indices and gray matter volume showed a negative correlation between trait anxiety and the amygdala. For the white matter volume, positive correlations were found between depression and the brainstem and between magnification and the postcentral gyrus. Changes in the brain volume of female FM patients may be related to anxiety, depression, and pain catastrophizing.

6.
BMC Endocr Disord ; 23(1): 222, 2023 Oct 12.
Artigo em Inglês | MEDLINE | ID: mdl-37821847

RESUMO

OBJECTIVE: To investigate associations between parenting styles during childhood and diabetes in adulthood in a Japanese community. METHODS: In 2011, 710 community-dwelling Japanese residents aged ≥ 40 years were assessed for the presence of diabetes and for their perceptions of the parenting style of their parents, as measured using the "care" and "overprotection" scales of the Parental Bonding Instrument. Care and overprotection scores for each parent were dichotomized by age-specific median values. Diabetes mellitus was defined as a fasting plasma glucose level of ≥ 7.0 mmol/L, a 2-h post-loaded glucose level of ≥ 11.1 mmol/L, HbA1c ≥ 6.5%, and/or the current use of insulin or oral glucose-lowering agents. The odds ratios (ORs) for prevalent diabetes were calculated using a logistic regression model. RESULTS: The prevalence of diabetes was 14.9%. Subjects with a high paternal overprotection score had a significantly greater likelihood of prevalent diabetes than those with a low paternal overprotection score after adjusting for confounders (OR 1.71, 95% confidence interval [CI] 1.06-2.77), while there was no significant association between paternal care and diabetes. Additionally, the multivariable-adjusted ORs for the presence of diabetes were significantly higher in subjects with a low maternal care score (OR 1.61, 95%CI 1.00-2.60) or in subjects with a high maternal overprotection score (OR 1.73, 95%CI 1.08-2.80). Moreover, the subjects with a low care score and high overprotection score for both their father and mother had a significantly higher multivariable-adjusted OR of diabetes than those with a high care score and low overprotection score for both parents (OR 2,12, 95%CI 1.14-3.95). CONCLUSIONS: This study suggests that inadequate care and excessive overprotection during childhood may contribute to the development of diabetes in adulthood.


Assuntos
Diabetes Mellitus , População do Leste Asiático , Humanos , Estudos Transversais , Diabetes Mellitus/epidemiologia , Diabetes Mellitus/etiologia , Glucose , Pais , Adulto , Poder Familiar
7.
J Physiol Anthropol ; 42(1): 18, 2023 Sep 06.
Artigo em Inglês | MEDLINE | ID: mdl-37674183

RESUMO

BACKGROUND: Alexithymia, a personality trait characterized by difficulties in identifying and expressing their emotions despite having a range of emotional experiences, can impact individuals' stress coping mechanisms. While many studies have investigated brain functions associated with specific tasks in relation to emotion processing, research focusing on resting-state brain functions has been limited. Thus, the aim of this study was to investigate the relationship between alexithymia and brain function by analyzing arterial spin labeling (ASL) data obtained during the resting state. METHODS: A brain structural and functional imaging study was conducted on 42 healthy adult men and women using ASL and the 20-item Toronto Alexithymia Scale (TAS-20) questionnaire survey. Cerebral blood flow and functional connectivity values were calculated for regions of interest in the default mode network, saliency network, and central executive network from the ASL data. Correlation analysis was performed with TAS20 scores, and partial correlation analysis was conducted to control for anxiety and depression. RESULTS: The functional connectivity analysis revealed a negative correlation between the functional connectivity of the right insular cortex and left anterior cingulate cortex and the total score of TAS, as well as difficulty identifying feelings and difficulty describing feeling subscores, indicating that the higher the scores, the weaker the functional connectivity between these regions (T = -3.830, p = 0.0013, R = -0.5180). This correlation remained significant even after controlling for anxiety and depression using partial correlation analysis. CONCLUSION: The present study revealed differences in the activity of the Saliency Network at rest as measured by ASL, which were independent of anxiety and depression, and varied depending on the severity of alexithymia. This functional change may underlie the neural basis of decreased emotional processing observed in alexithymia. These findings may contribute to the elucidation of the neural mechanisms of alexithymia, which can lead to social impairments, and suggest the usefulness of ASL measurement as a biomarker of alexithymia.


Assuntos
Sintomas Afetivos , Emoções , Adulto , Masculino , Humanos , Feminino , Voluntários Saudáveis , Ansiedade , Encéfalo/diagnóstico por imagem
8.
Neurology ; 101(11): e1108-e1117, 2023 09 12.
Artigo em Inglês | MEDLINE | ID: mdl-37438128

RESUMO

BACKGROUND AND OBJECTIVES: Epidemiologic evidence has shown that social isolation, a low frequency of social contact with others, is associated with the risk of dementia and late-life depressive symptoms. Therefore, we hypothesized that low frequency of social contact may be involved in brain atrophy, and depressive symptoms may play some role in this relationship. We aimed to evaluate the association between low frequency of social contact and the volumes of various brain regions and to assess the extent to which depressive symptoms mediate these relationships from a large population-based multisite cohort study. METHODS: Dementia-free community-dwelling Japanese aged 65 years or older underwent brain MRI scans and a comprehensive health examination. Frequency of contact with noncohabiting relatives and friends was determined by asking a single question with 4 categories: everyday, several times a week, several times a month, and seldom. Total and regional brain volumes, intracranial volume (ICV), and white matter lesion volume were estimated using FreeSurfer software. The associations between frequency of social contact and brain volumes per ICV were examined using analyses of covariance. Mediation analyses were conducted to calculate the proportion of the associations explained by depressive symptoms. RESULTS: We included 8,896 participants. The multivariable-adjusted mean of the total brain volume in the group with the lowest frequency of social contact was significantly lower compared with that in the group with the highest frequency of social contact (67.3% vs 67.8%), with a significant increasing trend across the groups (p value for trend <0.001). The white matter lesion volume increased significantly with lower frequency of social contact (0.30% in the lowest frequency group vs 0.26% in the highest frequency group, p value for trend <0.001). Lower frequency of social contact was associated with smaller volumes in the temporal lobe, occipital lobe, cingulum, hippocampus, and amygdala (all q values of false discovery rate correction <0.05). The relationships seemed to be partly mediated by depressive symptoms, which accounted for 15%-29% of the observed associations. DISCUSSION: Lower frequency of social contact was associated with decreased total and cognitive function-related regional brain volumes. In addition, depressive symptoms partially explained the association in community-dwelling older people without dementia in Japan.


Assuntos
Encéfalo , Vida Independente , Humanos , Idoso , Estudos de Coortes , Encéfalo/diagnóstico por imagem , Encéfalo/patologia , Lobo Temporal/patologia , Imageamento por Ressonância Magnética , Atrofia/patologia
9.
Kidney Med ; 5(3): 100593, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36874508

RESUMO

Rationale & Objective: Chronic kidney disease, defined by albuminuria and/or reduced estimated glomerular filtration rate (eGFR), has been reported to be associated with brain atrophy and/or higher white matter lesion volume (WMLV), but there are few large-scale population-based studies assessing this issue. This study aimed to examine the associations between the urinary albumin-creatinine ratio (UACR) and eGFR levels and brain atrophy and WMLV in a large-scale community-dwelling older population of Japanese. Study Design: Population-based cross-sectional study. Setting & Participants: A total of 8,630 dementia-free community-dwelling Japanese aged greater than or equal to 65 years underwent brain magnetic resonance imaging scanning and screening examination of health status in 2016-2018. Exposures: UACR and eGFR levels. Outcomes: The total brain volume (TBV)-to-intracranial volume (ICV) ratio (TBV/ICV), the regional brain volume-to-TBV ratio, and the WMLV-to-ICV ratio (WMLV/ICV). Analytical Approach: The associations of UACR and eGFR levels with the TBV/ICV, the regional brain volume-to-TBV ratio, and the WMLV/ICV were assessed by using an analysis of covariance. Results: Higher UACR levels were significantly associated with lower TBV/ICV and higher geometric mean values of the WMLV/ICV (P for trend = 0.009 and <0.001, respectively). Lower eGFR levels were significantly associated with lower TBV/ICV, but not clearly associated with WMLV/ICV. In addition, higher UACR levels, but not lower eGFR, were significantly associated with lower temporal cortex volume-to-TBV ratio and lower hippocampal volume-to-TBV ratio. Limitations: Cross-sectional study, misclassification of UACR or eGFR levels, generalizability to other ethnicities and younger populations, and residual confounding factors. Conclusions: The present study demonstrated that higher UACR was associated with brain atrophy, especially in the temporal cortex and hippocampus, and with increased WMLV. These findings suggest that chronic kidney disease is involved in the progression of morphologic brain changes associated with cognitive impairment.

10.
Psychiatry Clin Neurosci ; 77(6): 330-337, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36700514

RESUMO

AIM: To investigate the association of white matter lesions volume (WMLV) levels with dementia risk and the association between dementia risk and the combined measures of WMLV and either total brain atrophy or dementia-related gray matter atrophy in a general older population. METHODS: One thousand one hundred fifty-eight Japanese dementia-free community-residents aged ≥65 years who underwent brain magnetic resonance imaging were followed for 5.0 years. WMLV were segmented using the Lesion Segmentation Toolbox. Total brain volume (TBV) and regional gray matter volume were estimated by voxel-based morphometry. The WMLV-to-intracranial brain volume ratio (WMLV/ICV) was calculated, and its association with dementia risk was estimated using Cox proportional hazard models. Total brain atrophy, defined as the TBV-to-ICV ratio (TBV/ICV), and dementia-related regional brain atrophy defined based on our previous report were calculated. The association between dementia risk and the combined measures of WMLV/ICV and either total brain atrophy or the number of atrophied regions was also tested. RESULTS: During the follow-up, 113 participants developed dementia. The risks of dementia increased significantly with higher WMLV/ICV levels. In addition, dementia risk increased additively both in participants with higher WMLV/ICV levels and lower TBV/ICV levels and in those with higher WMLV/ICV levels and a higher number of dementia-related brain regional atrophy. CONCLUSION: The risk of dementia increased significantly with higher WMLV/ICV levels. An additive increment in dementia risk was observed with higher WMLV/ICV levels and lower TBV/ICV levels or a higher number of dementia-related brain regional atrophy, suggesting the importance of prevention or control of cardiovascular risk factors.


Assuntos
Doenças Neurodegenerativas , Substância Branca , Humanos , Substância Branca/diagnóstico por imagem , Substância Branca/patologia , Encéfalo/diagnóstico por imagem , Encéfalo/patologia , Substância Cinzenta/diagnóstico por imagem , Substância Cinzenta/patologia , Doenças Neurodegenerativas/patologia , Atrofia/patologia , Imageamento por Ressonância Magnética/métodos
11.
Arch Gerontol Geriatr ; 106: 104883, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36495658

RESUMO

BACKGROUND: To investigate the association of gait speed with regional brain volumes and the risk of incident dementia. METHODS: A total of 1112 dementia-free Japanese residents aged ≥65 years who underwent brain magnetic resonance imaging were followed for 5.0 years (median). The participants were classified into the age- and sex-specific quartile levels of maximum gait speed. Regional gray matter volumes (GMV) and white matter hyperintensities volumes (WMHV) were measured by applying voxel-based morphometry methods. The cross-sectional association of maximum gait speed with regional GMV was examined using an analysis of covariance. We also estimated the association between maximum gait speed level and the risk of developing dementia using a Cox proportional hazards model. Mediation analyses were conducted to determine the contribution of regional brain volumes to the association between maximum gait speed and dementia. RESULTS: Lower maximum gait speed was significantly associated with lower GMV of the total brain, frontal lobe, temporal lobe, cingulate gyrus, insula, hippocampus, amygdala, basal ganglia, thalamus, and cerebellum, and increased WMHV at baseline. During the follow-up, 108 participants developed dementia. The incidence rate of all dementias increased significantly with decreasing maximum gait speed after adjusting for potential confounders (P for trend = 0.03). The mediating effects of the GMV of the hippocampus, GMV of the insula, and WMHV were significant. CONCLUSIONS: Lower maximum gait speed was significantly associated with an increased risk of dementia. Reduced GMV of the hippocampus or insula, and an increase in WMHV was likely to be involved in this association.


Assuntos
População do Leste Asiático , Velocidade de Caminhada , Masculino , Feminino , Humanos , Idoso , Estudos Transversais , Encéfalo/diagnóstico por imagem , Substância Cinzenta/diagnóstico por imagem , Substância Cinzenta/patologia , Imageamento por Ressonância Magnética/métodos
12.
Eur J Pain ; 27(4): 518-529, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36585949

RESUMO

BACKGROUND: Poor family functioning has been reported to be associated with the severity of chronic pain in outpatients, but the association has not been fully addressed in general populations. The present study aimed to examine the association between family dysfunction levels and the presence of chronic pain in a community-dwelling Japanese population. METHODS: A total of 2598 participants aged ≥40 years were classified as having healthy, borderline or unhealthy family functioning. Chronic pain was defined as subjective pain for three months or longer, and further classified by pain intensity, the number of chronic pain sites, pain duration and the extent of pain spread. A logistic regression model was used to compute the odds ratios (ORs) for chronic pain outcomes. RESULTS: The prevalence of chronic pain was 49%. The age- and sex-adjusted prevalence of total and severe chronic pain were increased significantly with increasing family dysfunction levels (all p for trend <0.01). After adjusting for sociodemographic, physical, social and family structure factors, the ORs (95% confidence intervals [CI]) for having chronic pain among borderline and unhealthy groups were 1.20 (1.01-1.44) and 1.43 (1.15-1.79), respectively, as compared with a healthy family function group. The association was stronger among people who were employed and those who were living with their children. In addition, the ORs for severe chronic pain increased significantly with increasing levels of family dysfunction. CONCLUSIONS: The family dysfunction level was positively associated with the presence as well as the severity of chronic pain in a community-dwelling population. SIGNIFICANCE: A biopsychosocial burden due to family relationships could worsen the clinical presentation of pain. Social support or family therapy for dysfunctional families would be a potential initiative for the prevention or management of chronic pain.


Assuntos
Dor Crônica , Relações Familiares , Humanos , Dor Crônica/psicologia , População do Leste Asiático , Inquéritos e Questionários , Adulto
13.
Ophthalmol Sci ; 2(2): 100157, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36249677

RESUMO

Purpose: To assess the association of inner retinal thickness with prevalent dementia and regional brain atrophy in a general older population of Japanese. Design: Population-based, cross-sectional study. Participants: A total of 1078 residents aged 65 years or older who participated in an eye examination, a comprehensive survey of dementia, and brain magnetic resonance imaging scanning in 2017. Methods: The thicknesses of the inner retinal layers, namely, the ganglion cell-inner plexiform layer (GC-IPL) and retinal nerve fiber layer (RNFL)-were measured by swept-source OCT (SS-OCT). The association of these retinal thicknesses with the risk of the presence of dementia was estimated using restricted cubic splines and logistic regression models. Regional brain volumes were estimated separately by applying 2 different methods: voxel-based morphometry (VBM) and analysis by FreeSurfer software. The associations of GC-IPL and RNFL thickness with each brain regional volume were analyzed using multiple regression analysis. Main Outcome Measure: Prevalent dementia and regional brain atrophy. Results: Among the study participants, 61 participants (5.7%) were diagnosed with dementia. The likelihood of the presence of dementia significantly increased with lower GC-IPL thickness after adjusting for potential confounders (odds ratio, 1.62 [95% confidence interval, 1.30-2.01] per 1 standard deviation decrement in the GC-IPL thickness), but no significant association was observed with RNFL thickness. In the VBM analyses with the multivariable adjustment, lower GC-IPL thickness was significantly associated with lower volume of known brain regions related to cognitive functions (i.e., the hippocampus, amygdala, entorhinal area, and parahippocampal gyrus) and visual functions (i.e., the cuneus, lingual gyrus, and thalamus). Meanwhile, the volume of the thalamus significantly decreased with lower RNFL thickness, but none of the brain regions related to cognitive function exhibited a volume change in association with RNFL thickness. The sensitivity analysis using FreeSurfer analysis also showed that lower GC-IPL thickness was significantly associated with lower regional brain volume/intracranial volume of the hippocampus, amygdala, cuneus, lingual gyrus, and thalamus. Conclusions: Our findings suggest that the measurement of GC-IPL thickness by SS-OCT, which is a noninvasive, convenient, and reproducible method, might be useful for identifying high-risk individuals with dementia.

14.
Diabetes Care ; 45(6): 1364-1371, 2022 06 02.
Artigo em Inglês | MEDLINE | ID: mdl-35500069

RESUMO

OBJECTIVE: To examine the association between diabetes and gray matter atrophy patterns in a general older Japanese population. RESEARCH DESIGN AND METHODS: In 2012, a total of 1,189 community-dwelling Japanese aged ≥65 years underwent brain MRI scans. Regional gray matter volumes (GMV) and intracranial volume (ICV) were measured by applying voxel-based morphometry (VBM) methods. The associations of diabetes and related parameters with the regional GMV/ICV were examined using an ANCOVA. The regional gray matter atrophy patterns in the subjects with diabetes or elevated fasting plasma glucose (FPG) or 2-h postload glucose (2hPG) levels were investigated using VBM. RESULTS: Subjects with diabetes had significantly lower mean values of GMV/ICV in the frontal lobe, temporal lobe, insula, deep gray matter structures, and cerebellum than subjects without diabetes after adjusting for potential confounders. A longer duration of diabetes was also significantly associated with lower mean values of GMV/ICV in these brain regions. The multivariable-adjusted mean values of the temporal, insular, and deep GMV/ICV decreased significantly with elevating 2hPG levels, whereas higher FPG levels were not significantly associated with GMV/ICV of any brain regions. In the VBM analysis, diabetes was associated with gray matter atrophy in the bilateral superior temporal gyri, right middle temporal gyrus, left inferior temporal gyrus, right middle frontal gyrus, bilateral thalami, right caudate, and right cerebellum. CONCLUSIONS: The current study suggests that a longer duration of diabetes and elevated 2hPG levels are significant risk factors for gray matter atrophy in various brain regions.


Assuntos
Diabetes Mellitus , Substância Cinzenta , Atrofia/patologia , Encéfalo/patologia , Diabetes Mellitus/patologia , Substância Cinzenta/diagnóstico por imagem , Substância Cinzenta/patologia , Humanos , Japão , Imageamento por Ressonância Magnética
15.
Hum Brain Mapp ; 43(13): 3998-4012, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35524684

RESUMO

White matter lesions (WML) commonly occur in older brains and are quantifiable on MRI, often used as a biomarker in Aging research. Although algorithms are regularly proposed that identify these lesions from T2-fluid-attenuated inversion recovery (FLAIR) sequences, none so far can estimate lesions directly from T1-weighted images with acceptable accuracy. Since 3D T1 is a polyvalent and higher-resolution sequence, it could be beneficial to obtain the distribution of WML directly from it. However a serious difficulty, both for algorithms and human, can be found in the ambiguities of brain signal intensity in T1 images. This manuscript shows that a cross-domain ConvNet (Convolutional Neural Network) approach can help solve this problem. Still, this is non-trivial, as it would appear to require a large and varied dataset (for robustness) labelled at the same high resolution (for spatial accuracy). Instead, our model was taught from two-dimensional FLAIR images with a loss function designed to handle the super-resolution need. And crucially, we leveraged a very large training set for this task, the recently assembled, multi-sites Japan Prospective Studies Collaboration for Aging and Dementia (JPSC-AD) cohort. We describe the two-step procedure that we followed to handle such a large number of imperfectly labeled samples. A large-scale accuracy evaluation conducted against FreeSurfer 7, and a further visual expert rating revealed that WML segmentation from our ConvNet was consistently better. Finally, we made a directly usable software program based on that trained ConvNet model, available at https://github.com/bthyreau/deep-T1-WMH.


Assuntos
Substância Branca , Idoso , Encéfalo/diagnóstico por imagem , Encéfalo/patologia , Humanos , Japão , Aprendizado de Máquina , Imageamento por Ressonância Magnética/métodos , Estudos Prospectivos , Substância Branca/diagnóstico por imagem
16.
J Gerontol A Biol Sci Med Sci ; 77(9): 1789-1797, 2022 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-35443061

RESUMO

Altruistic social activity, such as giving support to others, has shown protective benefits on dementia risk and cognitive decline. However, the pathological mechanism is unclear. In the present study, we investigated the association between altruistic social activity and brain regional gray matter. Furthermore, to explore the psychological interplay in altruistic social activity, we tested mediating effect of depressive symptoms on brain regional gray matter. We performed a cross-sectional voxel-based morphology (VBM) analysis including 8 695 old adults (72.9 ± 6.1 years) from Japan Prospective Studies Collaboration for Aging and Dementia (JPSC-AD) Cohort. We measured altruistic social activities by self-report questionnaires, depressive symptoms by Geriatric Depression Scale (GDS)-short version. We employed the whole-brain VBM method to detect relevant structural properties related to altruistic social activity. We then performed multiple regression models to detect the mediating effect of depressive symptoms on particular brain regional gray matter volume while adjusting possible physical and social lifestyle covariables. We found that altruistic social activity is associated with larger gray matter volume in posterior insula, middle cingulate gyrus, hippocampus, thalamus, superior temporal gyrus, anterior orbital gyrus, and middle occipital gyrus. Depressive symptoms mediated over 10% on altruistic social activity and hippocampus volume, over 20% on altruistic social activity and cingulate gyrus volume. Our results indicated that altruistic social activity might preserve brain regional gray matter which are sensitive to aging and cognitive decline. Meanwhile, this association may be explained by indirect effect on depressive symptoms, suggesting that altruistic social activity may mitigate the neuropathology of dementia.


Assuntos
Demência , Substância Cinzenta , Idoso , Encéfalo/diagnóstico por imagem , Encéfalo/patologia , Estudos Transversais , Demência/patologia , Depressão , Substância Cinzenta/diagnóstico por imagem , Substância Cinzenta/patologia , Humanos , Imageamento por Ressonância Magnética , Estudos Prospectivos
17.
Pain ; 163(11): 2185-2193, 2022 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-35333827

RESUMO

ABSTRACT: Chronic low back pain (CLBP) is the leading cause of years lived with disability. Recently, it has been reported that CLBP is associated with alterations in the central nervous system. The present study aimed to investigate the association between CLBP and regional brain atrophy in an older Japanese population. A total of 1106 community-dwelling participants aged ≥65 years underwent brain magnetic resonance imaging scans and a health examination in 2017 to 2018. We used the FreeSurfer software for the analysis of brain magnetic resonance imaging. Chronic pain was defined as subjective pain for ≥3 months. Participants were divided into 3 groups according to the presence or absence of chronic pain and the body part that mainly suffered from pain: a "no chronic pain (NCP)" group (n = 541), "CLBP" group (n = 189), and "chronic pain in body parts other than the lower back (OCP)" group (n = 376). The brain volumes of the ventrolateral and dorsolateral prefrontal cortex, the posterior cingulate gyrus, and the amygdala were significantly lower in the CLBP group than in the NCP group after adjustment for sociodemographic, physical, and lifestyle factors and depressive symptoms. In addition, the left superior frontal gyrus was identified as a significant cluster by the Query, Design, Estimate, Contrast interface. There were no significant differences in the brain volumes of pain-related regions between the NCP and the OCP groups. The present study suggests that CLBP is associated with lower brain volumes of pain-related regions in a general older population of Japanese.


Assuntos
Dor Crônica , Dor Lombar , Doenças Neurodegenerativas , Atrofia , Encéfalo/diagnóstico por imagem , Encéfalo/patologia , Dor Crônica/diagnóstico por imagem , Dor Crônica/epidemiologia , Dor Crônica/patologia , Humanos , Japão/epidemiologia , Dor Lombar/diagnóstico por imagem , Dor Lombar/epidemiologia , Imageamento por Ressonância Magnética/métodos , Doenças Neurodegenerativas/patologia
18.
J Neurol Neurosurg Psychiatry ; 93(3): 263-271, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-34670843

RESUMO

OBJECTIVE: To assess the association of regional grey matter atrophy with dementia risk in a general older Japanese population. METHODS: We followed 1158 dementia-free Japanese residents aged ≥65 years for 5.0 years. Regional grey matter volume (GMV) at baseline was estimated by applying voxel-based morphometry methods. The GMV-to-total brain volume ratio (GMV/TBV) was calculated, and its association with dementia risk was estimated using Cox proportional hazard models. We assessed whether the predictive ability of a model based on known dementia risk factors could be improved by adding the total number of regions with grey matter atrophy among dementia-related brain regions, where the cut-off value for grey matter atrophy in each region was determined by receiver operating characteristic curves. RESULTS: During the follow-up, 113 participants developed all-cause dementia, including 83 with Alzheimer's disease (AD). Lower GMV/TBV of the medial temporal lobe, insula, hippocampus and amygdala were significantly/marginally associated with higher risk of all-cause dementia and AD (all p for trend ≤0.08). The risks of all-cause dementia and AD increased significantly with increasing total number of brain regions exhibiting grey matter atrophy (both p for trend <0.01). Adding the total number of regions with grey matter atrophy into a model consisting of known risk factors significantly improved the predictive ability for AD (Harrell's c-statistics: 0.765-0.802; p=0.02). CONCLUSIONS: Our findings suggest that the total number of regions with grey matter atrophy among the medial temporal lobe, insula, hippocampus and amygdala is a significant predictor for developing dementia, especially AD, in the general older population.


Assuntos
Atrofia/diagnóstico por imagem , Encéfalo/diagnóstico por imagem , Demência/diagnóstico por imagem , Substância Cinzenta/diagnóstico por imagem , Idoso , Idoso de 80 Anos ou mais , Atrofia/complicações , Atrofia/patologia , Encéfalo/patologia , Demência/etiologia , Demência/patologia , Feminino , Substância Cinzenta/patologia , Humanos , Processamento de Imagem Assistida por Computador , Imageamento por Ressonância Magnética , Masculino
20.
Asian J Endosc Surg ; 14(2): 200-206, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33244892

RESUMO

INTRODUCTION: The number of elderly patients with colorectal cancer has gradually increased. Laparoscopic colorectal surgery is widely used to approach colorectal cancer. The aim of this study was to evaluate long-term outcomes in octogenarians who underwent laparoscopic colorectal surgery for colorectal cancer. METHODS: This study included 158 patients aged 80 or over who underwent surgery for colorectal cancer between 2010 and 2015. We compared long-term outcomes of a laparoscopic colorectal surgery group with those of an open colorectal surgery group by propensity score matching equalizing factors that could affect prognosis such as prognostic nutritional index and Charlson comorbidity index score. RESULTS: Forty-eight pairs were selected after propensity score matching. The cancer-specific 5-year survival rate was 97.1% in the laparoscopic colorectal surgery group and 87.6% in the open colorectal surgery group (P = .17). The overall 5-year survival rate was 77.3% in the laparoscopic colorectal surgery group and 73.9% in the open colorectal surgery group (P = .32). The 5-year recurrence-free survival rate was 95.1% in the laparoscopic colorectal surgery group and 85.4% in the open colorectal surgery group (P = .14). CONCLUSION: Laparoscopic colorectal surgery for octogenarians with colorectal cancer achieves similar oncological outcomes to open colorectal surgery and should be considered as a treatment option.


Assuntos
Neoplasias Colorretais , Laparoscopia , Idoso de 80 Anos ou mais , Estudos de Casos e Controles , Neoplasias Colorretais/cirurgia , Humanos , Pontuação de Propensão , Resultado do Tratamento
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