Dementia and Geriatric Cognitive Disorders Extra最新文献

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Impact of Confinement on the Burden of Caregivers of Patients with the Behavioral Variant of Frontotemporal Dementia and Alzheimer Disease during the COVID-19 Crisis in France. COVID-19危机期间,法国禁闭对额颞叶痴呆和阿尔茨海默病行为变异患者照顾者负担的影响
IF 2.3
Dementia and Geriatric Cognitive Disorders Extra Pub Date : 2020-11-12 eCollection Date: 2020-09-01 DOI: 10.1159/000511416
Claire Boutoleau-Bretonnière, Hélène Pouclet-Courtemanche, Aurélie Gillet, Amélie Bernard, Anne-Laure Deruet, Inès Gouraud, Estelle Lamy, Aurélien Mazoué, Laëtitia Rocher, Cédric Bretonnière, Mohamad El Haj
{"title":"Impact of Confinement on the Burden of Caregivers of Patients with the Behavioral Variant of Frontotemporal Dementia and Alzheimer Disease during the COVID-19 Crisis in France.","authors":"Claire Boutoleau-Bretonnière,&nbsp;Hélène Pouclet-Courtemanche,&nbsp;Aurélie Gillet,&nbsp;Amélie Bernard,&nbsp;Anne-Laure Deruet,&nbsp;Inès Gouraud,&nbsp;Estelle Lamy,&nbsp;Aurélien Mazoué,&nbsp;Laëtitia Rocher,&nbsp;Cédric Bretonnière,&nbsp;Mohamad El Haj","doi":"10.1159/000511416","DOIUrl":"https://doi.org/10.1159/000511416","url":null,"abstract":"<p><strong>Introduction: </strong>The clinical presentation of the behavioral variant of frontotemporal dementia (bvFTD) differs from that of Alzheimer disease (AD), with major impairments in behavioral functions in bvFTD and cognitive impairment in AD. Both behavioral disturbances in bvFTD and cognitive impairment in AD contribute to caregiver burden.</p><p><strong>Objective: </strong>To investigate the impact of home confinement during the COVID-19 crisis on the burden of caregivers of bvFTD or AD patients.</p><p><strong>Methods: </strong>During the COVID-19 lockdown in France, neurologists and neuropsychologists from the Memory Center of Nantes Hospital conducted teleconsultations for 38 AD patients and 38 bvFTD patients as well as for their caregivers. During these consultations, caregivers were invited to rate the change in their burden during home confinement. They were also invited to rate behavioral or emotional changes in the patients during, compared with before, the confinement.</p><p><strong>Results: </strong>Twenty-two bvFTD caregivers and 14 AD caregivers experienced an increase in burden. For bvFTD caregivers, this increased burden occurred regardless of behavioral changes, while AD caregivers experienced an increased burden related to changes in patients' neuropsychiatric symptoms. Among the whole cohort, 2 factors were associated with increased caregiver burden: behavioral change and bvFTD.</p><p><strong>Conclusion: </strong>The results demonstrate that during home confinement in the COVID-19 crisis, neuropsychiatric symptoms were the core factor that impacted caregiver burden in different ways depending on the disease.</p>","PeriodicalId":38017,"journal":{"name":"Dementia and Geriatric Cognitive Disorders Extra","volume":"10 3","pages":"127-134"},"PeriodicalIF":2.3,"publicationDate":"2020-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000511416","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39123328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 23
Social Cognition Deficits Are Pervasive across Both Classical and Overlap Frontotemporal Dementia Syndromes. 社会认知缺陷在经典和重叠额颞叶痴呆综合征中普遍存在。
IF 2.3
Dementia and Geriatric Cognitive Disorders Extra Pub Date : 2020-11-04 eCollection Date: 2020-09-01 DOI: 10.1159/000511329
Faheem Arshad, Avanthi Paplikar, Shailaja Mekala, Feba Varghese, Vandana Valiyaparambath Purushothaman, Darshini Jeevandra Kumar, Leena Shingavi, Seena Vengalil, Subasree Ramakrishnan, Ravi Yadav, Pramod Kumar Pal, Atchayaram Nalini, Suvarna Alladi
{"title":"Social Cognition Deficits Are Pervasive across Both Classical and Overlap Frontotemporal Dementia Syndromes.","authors":"Faheem Arshad,&nbsp;Avanthi Paplikar,&nbsp;Shailaja Mekala,&nbsp;Feba Varghese,&nbsp;Vandana Valiyaparambath Purushothaman,&nbsp;Darshini Jeevandra Kumar,&nbsp;Leena Shingavi,&nbsp;Seena Vengalil,&nbsp;Subasree Ramakrishnan,&nbsp;Ravi Yadav,&nbsp;Pramod Kumar Pal,&nbsp;Atchayaram Nalini,&nbsp;Suvarna Alladi","doi":"10.1159/000511329","DOIUrl":"https://doi.org/10.1159/000511329","url":null,"abstract":"<p><strong>Objectives: </strong>Frontotemporal dementia (FTD) syndromes are a complex group of disorders characterised by profound changes in behaviour and cognition. Many of the observed behavioural abnormalities are now recognised to be due to impaired social cognition. While deficits in emotion recognition and empathy are well-recognised in behavioural-variant (Bv)FTD, limited information exists about the nature of social cognitive impairment in the language variant primary progressive aphasia (PPA) that includes progressive non-fluent aphasia (PNFA) and semantic dementia (SD), and in the motor variants FTD amyotrophic lateral sclerosis (FTD-ALS) and FTD progressive supranuclear palsy (FTD-PSP). This prospective study sought to explore the nature and profile of social cognition deficits across the spectrum of FTD.</p><p><strong>Methods: </strong>Sixty patients on the FTD spectrum, i.e., classical (16 with BvFTD and 20 with PPA) and overlap FTD syndromes (13 with FTD-ALS and 11 with FTD-PSP) were evaluated by means of the social cognition tasks, the Interpersonal Reactivity Index (IRI) for empathy, and pictures of facial affect (POFA) for emotion recognition. General cognition and behaviour were also assessed.</p><p><strong>Results: </strong>A significant impairment in emotion recognition and empathy was detected in both the classical and overlap FTD syndromes. The recognition of positive emotions was relatively preserved compared to that of negative emotions. Among the FTD subtypes, maximal impairment of empathy was demonstrated in FTD-PSP.</p><p><strong>Conclusion: </strong>Social cognition impairment is pervasive across the spectrum of FTD disorders, and tests of emotion recognition and empathy are clinically useful to identify the nature of behavioural problems in both classical and overlap FTD. Our findings also have implications for understanding the neural basis of social cognition in FTD.</p>","PeriodicalId":38017,"journal":{"name":"Dementia and Geriatric Cognitive Disorders Extra","volume":"10 3","pages":"115-126"},"PeriodicalIF":2.3,"publicationDate":"2020-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000511329","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38750959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
Montreal Cognitive Assessment as Screening Measure for Mild and Major Neurocognitive Disorder in a Chilean Population. 蒙特利尔认知评估作为智利人群轻度和重度神经认知障碍的筛查措施。
IF 2.3
Dementia and Geriatric Cognitive Disorders Extra Pub Date : 2020-10-14 eCollection Date: 2020-09-01 DOI: 10.1159/000506280
Sebastian Bello-Lepe, María Francisca Alonso-Sánchez, Alonso Ortega, Marcelo Gaete, Marcela Veliz, Juan Lira, Claudia Paz Perez Salas
{"title":"Montreal Cognitive Assessment as Screening Measure for Mild and Major Neurocognitive Disorder in a Chilean Population.","authors":"Sebastian Bello-Lepe,&nbsp;María Francisca Alonso-Sánchez,&nbsp;Alonso Ortega,&nbsp;Marcelo Gaete,&nbsp;Marcela Veliz,&nbsp;Juan Lira,&nbsp;Claudia Paz Perez Salas","doi":"10.1159/000506280","DOIUrl":"https://doi.org/10.1159/000506280","url":null,"abstract":"<p><strong>Background: </strong>The Montreal Cognitive Assessment (MoCA) is a sensitive screening instrument for mild neurocognitive disorder (mild NCD). However, cut-off scores and accuracy indices should be established using representative samples of the population. In this context, the aim of this study was to update the normative values, and diagnostic efficiency statistics of the MoCA to detect mild NCD in the Chilean population.</p><p><strong>Methods: </strong>This study included 226 participants from the north, center, and south of the country, classified into 3 groups: healthy elderly (HE; <i>n</i> = 113), mild NCD (<i>n</i> = 65), and major neurocognitive disorder (major NCD; <i>n</i> = 48).</p><p><strong>Results: </strong>The optimal cut-off score to discriminate mild NCD from HE participants was 20 points with a sensitivity of 82.8% and a specificity of 84.1%. The observed balance between sensitivity and specificity shows a good test performance either to confirm or discard a diagnosis. The cut-off between mild NCD and major NCD from HE participants was 19 points with 85.6% of sensitivity and 90.3% of specificity.</p><p><strong>Conclusion: </strong>Overall diagnostic accuracy can be considered as outstanding (AUC ≥0.904) when discriminating HE from both mild NCD and major NCD. These results showed that the MoCA is a suitable tool to identify mild NCD and major NCD.</p>","PeriodicalId":38017,"journal":{"name":"Dementia and Geriatric Cognitive Disorders Extra","volume":"10 3","pages":"105-114"},"PeriodicalIF":2.3,"publicationDate":"2020-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000506280","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38654251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Urinary Apolipoprotein C3 Is a Potential Biomarker for Alzheimer's Disease. 尿载脂蛋白C3是阿尔茨海默病的潜在生物标志物。
IF 2.3
Dementia and Geriatric Cognitive Disorders Extra Pub Date : 2020-09-11 eCollection Date: 2020-09-01 DOI: 10.1159/000509561
Yumi Watanabe, Yoshitoshi Hirao, Kensaku Kasuga, Takayoshi Tokutake, Kaori Kitamura, Shumpei Niida, Takeshi Ikeuchi, Kazutoshi Nakamura, Tadashi Yamamoto
{"title":"Urinary Apolipoprotein C3 Is a Potential Biomarker for Alzheimer's Disease.","authors":"Yumi Watanabe, Yoshitoshi Hirao, Kensaku Kasuga, Takayoshi Tokutake, Kaori Kitamura, Shumpei Niida, Takeshi Ikeuchi, Kazutoshi Nakamura, Tadashi Yamamoto","doi":"10.1159/000509561","DOIUrl":"10.1159/000509561","url":null,"abstract":"<p><strong>Introduction: </strong>Biomarkers of Alzheimer's disease (AD) that can easily be measured in routine health checkups are desirable. Urine is a source of biomarkers that can be collected easily and noninvasively. We previously reported on the comprehensive profile of the urinary proteome of AD patients and identified proteins estimated to be significantly increased or decreased in AD patients by a label-free quantification method. The present study aimed to validate urinary levels of proteins that significantly differed between AD and control samples from our proteomics study (i.e., apolipoprotein C3 [ApoC3], insulin-like growth factor-binding protein 3 [Igfbp3], and apolipoprotein D [ApoD]).</p><p><strong>Methods: </strong>Enzyme-linked immunosorbent assays (ELISAs) were performed using urine samples from the same patient and control groups analyzed in the previous proteomics study (18 AD and 18 controls, set 1) and urine samples from an independent group of AD patients and controls (13 AD, 5 mild cognitive impairment [MCI], and 32 controls) from the National Center for Geriatrics and Gerontology Biobank (set 2).</p><p><strong>Results: </strong>In set 1, the crude urinary levels of ApoD, Igfbp3, and creatinine-adjusted ApoD were significantly higher in the AD group relative to the control group (<i>p</i> = 0.003, <i>p</i> = 0.002, and <i>p</i> = 0.019, respectively), consistent with our previous proteomics results. In set 2, however, the crude urinary levels of Igfbp3 were significantly lower in the AD+MCI group than in the control group (<i>p</i> = 0.028), and the levels of ApoD and ApoC3 did not differ significantly compared to the control group. Combined analysis of all samples revealed creatinine-adjusted ApoC3 levels to be significantly higher in the AD+MCI group (<i>p</i> = 0.015) and the AD-only group (<i>p</i> = 0.011) relative to the control group.</p><p><strong>Conclusion: </strong>ApoC3 may be a potential biomarker for AD, as validated by ELISA. Further analysis of ApoC3 as a urinary biomarker for AD is warranted.</p>","PeriodicalId":38017,"journal":{"name":"Dementia and Geriatric Cognitive Disorders Extra","volume":"10 3","pages":"94-104"},"PeriodicalIF":2.3,"publicationDate":"2020-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000509561","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38607040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
Apathy in Alzheimer's Disease Correlates with the Dopamine Transporter Level in the Caudate Nuclei. 阿尔茨海默病的冷漠与尾状核多巴胺转运蛋白水平相关。
IF 2.3
Dementia and Geriatric Cognitive Disorders Extra Pub Date : 2020-09-09 eCollection Date: 2020-05-01 DOI: 10.1159/000509278
Niki Udo, Naoki Hashimoto, Takuya Toyonaga, Tomoyuki Isoyama, Yuka Oyanagi, Hisashi Narita, Tohru Shiga, Shin Nakagawa, Ichiro Kusumi
{"title":"Apathy in Alzheimer's Disease Correlates with the Dopamine Transporter Level in the Caudate Nuclei.","authors":"Niki Udo,&nbsp;Naoki Hashimoto,&nbsp;Takuya Toyonaga,&nbsp;Tomoyuki Isoyama,&nbsp;Yuka Oyanagi,&nbsp;Hisashi Narita,&nbsp;Tohru Shiga,&nbsp;Shin Nakagawa,&nbsp;Ichiro Kusumi","doi":"10.1159/000509278","DOIUrl":"https://doi.org/10.1159/000509278","url":null,"abstract":"<p><strong>Introduction: </strong>Apathy is a common neuropsychiatric symptom in patients with Alzheimer's disease (AD). The striatal binding potential (BP) of <sup>123</sup>I-FP-CIT (<i>N</i>-δ-fluoropropyl-2β-carbomethoxy-3β-[4-iodophenyl]tropane) single-photon emission computed tomography (SPECT) is correlated with the degree of apathy in patients with Parkinson's disease (PD) and dementia with Lewy bodies (DLB). This study aimed to determine if dopaminergic activity in the basal ganglia is associated with the development of apathy in AD.</p><p><strong>Methods: </strong>Nineteen subjects with AD were included and underwent <sup>123</sup>I-FP-CIT-SPECT. Patients with other types of dementia as a comorbidity, those taking antidepressants, and those with overt parkinsonism were excluded. Apathy was assessed using the Apathy Evaluation Scale Informant-Japanese version (AES-I-J). SPECT images were overlaid with images in striatal regions of interest (ROIs), and the SPECT values in these regions were counted. The relationship between BP values and AES-I-J scores was investigated using Spearman's rank correlation coefficient.</p><p><strong>Results: </strong>Significant inverse correlations were observed between BP values and AES-I-J scores in the left caudate nucleus and there was a marginally significant inverse correlation in the right caudate nucleus.</p><p><strong>Conclusion: </strong>The pathological basis of apathy might be the impairment of the dopaminergic nervous system. Further studies on more subjects with AD, healthy controls, and patients with PD and DLB are needed.</p>","PeriodicalId":38017,"journal":{"name":"Dementia and Geriatric Cognitive Disorders Extra","volume":"10 2","pages":"86-93"},"PeriodicalIF":2.3,"publicationDate":"2020-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000509278","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38607038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
Vegetable Freshness Perception in Dementia with Lewy Bodies and Alzheimer's Disease. 路易体痴呆和阿尔茨海默病的蔬菜新鲜度感知。
IF 2.3
Dementia and Geriatric Cognitive Disorders Extra Pub Date : 2020-08-06 eCollection Date: 2020-05-01 DOI: 10.1159/000508282
Yuka Oishi, Toru Imamura, Tatsuo Shimomura, Kyoko Suzuki
{"title":"Vegetable Freshness Perception in Dementia with Lewy Bodies and Alzheimer's Disease.","authors":"Yuka Oishi,&nbsp;Toru Imamura,&nbsp;Tatsuo Shimomura,&nbsp;Kyoko Suzuki","doi":"10.1159/000508282","DOIUrl":"https://doi.org/10.1159/000508282","url":null,"abstract":"<p><strong>Introduction: </strong>Although various visual function deficits have been reported in patients with Alzheimer's disease (AD) and dementia with Lewy bodies (DLB), vegetable freshness perception has not been thoroughly examined.</p><p><strong>Objective: </strong>To investigate vegetable freshness perception in patients with AD and DLB and to clarify the relationship between vegetable freshness perception and various visuoperceptual functions.</p><p><strong>Methods: </strong>We enrolled 37 patients with probable DLB, 58 patients with probable AD, and 32 age-matched healthy controls. We assessed vegetable freshness perception and visuoperceptual functions, including vegetable brightness perception, contrast sensitivity, color perception, and stereopsis. Patients with DLB showed disproportionate deficits in vegetable freshness perception and vegetable luminance perception compared to patients with AD and controls. Analyses of the groups with higher and lower vegetable freshness perceptions revealed significant differences in contrast sensitivity and visual texture recognition.</p><p><strong>Results: </strong>In the vegetable freshness test, we found significant differences among the 3 groups (<i>F</i> = 30.029, <i>p</i> < 0.0001); the extent of impairment in patients with DLB was greater than that in patients with AD. In patients with DLB, the vegetable freshness judgments were significantly correlated with texture judgment scores and contrast sensitivity.</p><p><strong>Conclusion: </strong>Our findings revealed significantly impaired vegetable freshness perception in patients with DLB. Vegetable freshness perception may be related to visual texture recognition in patients with DLB.</p>","PeriodicalId":38017,"journal":{"name":"Dementia and Geriatric Cognitive Disorders Extra","volume":"10 2","pages":"74-85"},"PeriodicalIF":2.3,"publicationDate":"2020-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000508282","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38607037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cognitive Reserve Moderates the Predictive Role of Memory Complaints for Subsequent Decline in Executive Functioning. 认知储备调节记忆抱怨对随后执行功能下降的预测作用。
IF 2.3
Dementia and Geriatric Cognitive Disorders Extra Pub Date : 2020-07-16 eCollection Date: 2020-05-01 DOI: 10.1159/000508363
Andreas Ihle, Élvio R Gouveia, Bruna R Gouveia, Matthias Kliegel
{"title":"Cognitive Reserve Moderates the Predictive Role of Memory Complaints for Subsequent Decline in Executive Functioning.","authors":"Andreas Ihle,&nbsp;Élvio R Gouveia,&nbsp;Bruna R Gouveia,&nbsp;Matthias Kliegel","doi":"10.1159/000508363","DOIUrl":"https://doi.org/10.1159/000508363","url":null,"abstract":"<p><strong>Aims: </strong>We investigated whether the longitudinal relation between memory complaints and subsequent decline in executive functioning over 6 years differed by leisure activity engagement as major contributor to cognitive reserve in old age.</p><p><strong>Methods: </strong>We analyzed longitudinal data from 897 older adults (M = 74.33 years) tested on the Trail Making Test (TMT) in two waves 6 years apart. Participants reported information on memory complaints and leisure activity engagement.</p><p><strong>Results: </strong>There was a significant interaction of memory complaints with leisure activity engagement on latent change in executive functioning. Specifically, only for individuals with less (but not those with greater) leisure activity engagement, memory complaints significantly predicted a steeper subsequent decline in executive functioning across 6 years (i.e., increases in TMT completion time).</p><p><strong>Conclusion: </strong>The role of memory complaints as an early predictor of decline in executive functioning seems to vary by individuals' cognitive reserve.</p>","PeriodicalId":38017,"journal":{"name":"Dementia and Geriatric Cognitive Disorders Extra","volume":"10 2","pages":"69-73"},"PeriodicalIF":2.3,"publicationDate":"2020-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000508363","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38343342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Utility of Easy Z-Score Imaging System-Assisted SPECT in Detecting Onset Age-Dependent Decreases in Cerebral Blood Flow in the Posterior Cingulate Cortex, Precuneus, and Parietal Lobe in Alzheimer's Disease with Amyloid Accumulation. 利用Easy Z-Score成像系统辅助SPECT检测淀粉样蛋白堆积的阿尔茨海默病后扣带皮层、楔前叶和顶叶脑血流的年龄依赖性减少。
IF 2.3
Dementia and Geriatric Cognitive Disorders Extra Pub Date : 2020-06-10 eCollection Date: 2020-05-01 DOI: 10.1159/000507654
Hiroshi Hayashi, Ryota Kobayashi, Shinobu Kawakatsu, Daichi Morioka, Koichi Otani
{"title":"Utility of Easy <i>Z</i>-Score Imaging System-Assisted SPECT in Detecting Onset Age-Dependent Decreases in Cerebral Blood Flow in the Posterior Cingulate Cortex, Precuneus, and Parietal Lobe in Alzheimer's Disease with Amyloid Accumulation.","authors":"Hiroshi Hayashi,&nbsp;Ryota Kobayashi,&nbsp;Shinobu Kawakatsu,&nbsp;Daichi Morioka,&nbsp;Koichi Otani","doi":"10.1159/000507654","DOIUrl":"https://doi.org/10.1159/000507654","url":null,"abstract":"<p><strong>Background: </strong>Easy <i>Z</i>-score imaging system (eZIS)-assisted SPECT accurately detects decreases in cerebral blood flow in the posterior cingulate cortex (PCC), precuneus, and parietal lobe, the cerebral regions deeply implicated in Alzheimer's disease (AD). Several studies suggested onset age-dependent decreases in cerebral blood flow in these regions in AD, but these studies did not screen for amyloid accumulation, suggesting inclusion of non-AD patients in their subjects.</p><p><strong>Objective: </strong>By applying eZIS-SPECT to patients with amyloid deposition, it was the aim of this study to clarify onset age-dependent decreases in cerebral blood flow in the regions critical to AD.</p><p><strong>Methods: </strong>We retrospectively analyzed eZIS-SPECT data on 34 AD patients with amyloid retention confirmed by <sup>11</sup>C-Pittsburgh compound B-PET. The subjects were divided into an early-onset group (<i>n</i> = 16) and a late-onset group (<i>n</i> = 18). The three indicators of the eZIS that had discriminated between AD patients and normal controls in previous studies were compared between the two groups.</p><p><strong>Results: </strong>The mean values for the respective indicators were significantly higher in the early-onset group than in the late-onset group. Also, the proportion of patients with abnormalities in all indicators was significantly higher in the early-onset group (93.8%) than in the late-onset group (50.0%).</p><p><strong>Conclusions: </strong>The present study, applying eZIS-SPECT to amyloid-positive AD patients, suggests that reduced cerebral blood flow in the PCC, precuneus, and parietal lobe is more pronounced in the early-onset type than in the late-onset type of the disease.</p>","PeriodicalId":38017,"journal":{"name":"Dementia and Geriatric Cognitive Disorders Extra","volume":"10 2","pages":"63-68"},"PeriodicalIF":2.3,"publicationDate":"2020-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000507654","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38245272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Stability of Plasma Amyloid-β 1-40, Amyloid-β 1-42, and Total Tau Protein over Repeated Freeze/Thaw Cycles. 血浆淀粉样蛋白-β 1-40、淀粉样蛋白-β 1-42和总Tau蛋白在反复冻融循环中的稳定性
IF 2.3
Dementia and Geriatric Cognitive Disorders Extra Pub Date : 2020-01-01 DOI: 10.1159/000506278
Huei-Chun Liu, Ming-Jang Chiu, Chin-Hsien Lin, Shieh-Yueh Yang
{"title":"Stability of Plasma Amyloid-β 1-40, Amyloid-β 1-42, and Total Tau Protein over Repeated Freeze/Thaw Cycles.","authors":"Huei-Chun Liu,&nbsp;Ming-Jang Chiu,&nbsp;Chin-Hsien Lin,&nbsp;Shieh-Yueh Yang","doi":"10.1159/000506278","DOIUrl":"https://doi.org/10.1159/000506278","url":null,"abstract":"<p><strong>Introduction: </strong>Blood biomarkers of Alzheimer's disease (AD) have attracted much attention of researchers in recent years. In clinical studies, repeated freeze/thaw cycles often occur and may influence the stability of biomarkers. This study aims to investigate the stability of amyloid-β 1-40 (Aβ<sub>1-40</sub>), amyloid-β 1-42 (Aβ<sub>1-42</sub>), and total tau protein (T-tau) in plasma over freeze/thaw cycles.</p><p><strong>Methods: </strong>Plasma samples from healthy controls (<i>n</i> = 2), AD patients (AD, <i>n =</i>3) and Parkinson's disease patients (PD, <i>n</i> = 3) were collected by standardized procedure and immediately frozen at -80°C. Samples underwent 5 freeze/thaw (-80°C/room temperature) cycles. The concentrations of Aβ<sub>1-40</sub>, Aβ<sub>1-42</sub>, and T-tau were monitored during the freeze/thaw tests using an immunomagnetic reduction (IMR) assay. The relative percentage of concentrations after every freeze/thaw cycle was calculated for each biomarker.</p><p><strong>Results: </strong>A tendency of decrease in the averaged relative percentages over samples through the freeze and thaw cycles for Aβ<sub>1-40</sub> (100 to 97.11%), Aβ<sub>1-42</sub> (100 to 94.99%), and T-tau (100 to 95.65%) was found. However, the decreases were less than 6%. For all three biomarkers, no statistical significance was found between the levels of fresh plasma and those of the plasma experiencing 5 freeze/thaw cycles (<i>p</i> > 0.1).</p><p><strong>Conclusions: </strong>Plasma Aβ<sub>1-40</sub>, Aβ<sub>1-42</sub>, and T-tau are stable through 5 freeze/thaw cycles measured with IMR.</p>","PeriodicalId":38017,"journal":{"name":"Dementia and Geriatric Cognitive Disorders Extra","volume":"10 1","pages":"46-55"},"PeriodicalIF":2.3,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000506278","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10466665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
Evaluation of Postoperative Delirium: Validity and Reliability of the Nursing Delirium Screening Scale in the Turkish Language. 术后谵妄的评价:土耳其语护理谵妄筛查量表的效度和信度。
IF 2.3
Dementia and Geriatric Cognitive Disorders Extra Pub Date : 2019-12-05 eCollection Date: 2019-09-01 DOI: 10.1159/000501903
Fadime Çınar, Fatma Eti Aslan
{"title":"Evaluation of Postoperative Delirium: Validity and Reliability of the Nursing Delirium Screening Scale in the Turkish Language.","authors":"Fadime Çınar, Fatma Eti Aslan","doi":"10.1159/000501903","DOIUrl":"10.1159/000501903","url":null,"abstract":"<p><strong>Purpose: </strong>Postoperative delirium is the most well-known form of postoperative cognitive impairment in all patient groups, especially in the elderly. Delirium is a syndrome that causes serious consequences, increasing mortality and morbidity rates and extending the length of hospital stay. The aim of this study was to evaluate the validity and reliability of the Turkish version of the Nursing Delirium Screening Scale (Nu-DESC).</p><p><strong>Method: </strong>One hundred twelve patients who were hospitalized for a surgical operation in the orthopedics, neurosurgery, and general surgery clinic of a state hospital for 3 months were evaluated concurrently (and independently for delirium). Patients were observed by clinical nurses 3 times over a 24-h period. The presence of delirium was diagnosed by 2 neurologists according to DSM-IV criteria. Student's <i>t</i> test, the χ<sup>2</sup> test, and the Mann-Whitney U test were used, and construct validity, intrascale factor analysis, interrater reliability, and specificity and sensitivity (ROC) analyses were performed for descriptive analysis. SPSS 25.0 and MedCalc18.6 were used for statistical analysis.</p><p><strong>Results: </strong>Delirium was detected in 28 patients according to the Nu-DESC. The ICC (intraclass correlation) is 0.97 in the 95% confidence interval from 0.96 to 0.98 for agreement between nurses and neurologists for the total Nu-DESC score. Weighted κ rates were between 0.78 and 0.92. In the ROC analysis of the Nu-DESC scale, the optimum cutoff value calculated for the 1,344 observations and 112 patients was determined as >1 according to the maximum sensitivity and the specific situation. Sensitivity at the cut-off point was 92.27; specificity was determined as 92.72. The Youden index was found to be J = 0.845 (0 < J = 0.845 < 1).</p><p><strong>Conclusion: </strong>We believe that Turkish translation of Nu-DESC is valid and reliable for clinicians, nurses, and researchers and will contribute to delirium studies.</p>","PeriodicalId":38017,"journal":{"name":"Dementia and Geriatric Cognitive Disorders Extra","volume":"9 3","pages":"362-373"},"PeriodicalIF":2.3,"publicationDate":"2019-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000501903","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10398488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
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