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Huang ST, Hsiao FY, Tsai TH, Chen PJ, Peng LN, Chen LK. Using Hypothesis-Led Machine Learning and Hierarchical Cluster Analysis to Identify Disease Pathways Prior to Dementia: Longitudinal Cohort Study. J Med Internet Res 2023; 25:e41858. [PMID: 37494081 PMCID: PMC10413246 DOI: 10.2196/41858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 04/08/2023] [Accepted: 05/27/2023] [Indexed: 07/27/2023] Open
Abstract
BACKGROUND Dementia development is a complex process in which the occurrence and sequential relationships of different diseases or conditions may construct specific patterns leading to incident dementia. OBJECTIVE This study aimed to identify patterns of disease or symptom clusters and their sequences prior to incident dementia using a novel approach incorporating machine learning methods. METHODS Using Taiwan's National Health Insurance Research Database, data from 15,700 older people with dementia and 15,700 nondementia controls matched on age, sex, and index year (n=10,466, 67% for the training data set and n=5234, 33% for the testing data set) were retrieved for analysis. Using machine learning methods to capture specific hierarchical disease triplet clusters prior to dementia, we designed a study algorithm with four steps: (1) data preprocessing, (2) disease or symptom pathway selection, (3) model construction and optimization, and (4) data visualization. RESULTS Among 15,700 identified older people with dementia, 10,466 and 5234 subjects were randomly assigned to the training and testing data sets, and 6215 hierarchical disease triplet clusters with positive correlations with dementia onset were identified. We subsequently generated 19,438 features to construct prediction models, and the model with the best performance was support vector machine (SVM) with the by-group LASSO (least absolute shrinkage and selection operator) regression method (total corresponding features=2513; accuracy=0.615; sensitivity=0.607; specificity=0.622; positive predictive value=0.612; negative predictive value=0.619; area under the curve=0.639). In total, this study captured 49 hierarchical disease triplet clusters related to dementia development, and the most characteristic patterns leading to incident dementia started with cardiovascular conditions (mainly hypertension), cerebrovascular disease, mobility disorders, or infections, followed by neuropsychiatric conditions. CONCLUSIONS Dementia development in the real world is an intricate process involving various diseases or conditions, their co-occurrence, and sequential relationships. Using a machine learning approach, we identified 49 hierarchical disease triplet clusters with leading roles (cardio- or cerebrovascular disease) and supporting roles (mental conditions, locomotion difficulties, infections, and nonspecific neurological conditions) in dementia development. Further studies using data from other countries are needed to validate the prediction algorithms for dementia development, allowing the development of comprehensive strategies to prevent or care for dementia in the real world.
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Affiliation(s)
- Shih-Tsung Huang
- Department of Pharmacy, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Center for Healthy Longevity and Aging Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Fei-Yuan Hsiao
- Graduate Institute of Clinical Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Pharmacy, National Taiwan University Hospital, Taipei, Taiwan
| | | | - Pei-Jung Chen
- Advanced Tech Business Unit, Acer, New Taipei City, Taiwan
| | - Li-Ning Peng
- Center for Healthy Longevity and Aging Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Center for Geriatrics and Gerontology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Liang-Kung Chen
- Center for Healthy Longevity and Aging Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Center for Geriatrics and Gerontology, Taipei Veterans General Hospital, Taipei, Taiwan
- Taipei Municipal Gan-Dau Hospital (Managed by Taipei Veterans General Hospital), Taipei, Taiwan
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Qiu YJ, Cheng J, Zhang Q, Yang DH, Zuo D, Mao F, Liu LX, Dong Y, Cao SQ, Wang WP. Clinical Application of High-Frame-Rate Vector Flow Imaging in Evaluation of Carotid Atherosclerotic Stenosis. Diagnostics (Basel) 2023; 13:diagnostics13030519. [PMID: 36766624 PMCID: PMC9914914 DOI: 10.3390/diagnostics13030519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 01/16/2023] [Accepted: 01/27/2023] [Indexed: 02/04/2023] Open
Abstract
OBJECTIVE This study seeks to evaluate the value of the high-frame-rate vector flow imaging technique in assessing the hemodynamic changes of carotid atherosclerotic stenosis in aging people (>60 years old). METHODS Aging patients diagnosed with carotid atherosclerotic stenosis who underwent carotid high-frame-rate vector flow imaging examination were prospectively enrolled. A Mindray Resona7s ultrasound machine equipped with high-frame-rate vector flow function was used for ultrasound evaluation. First, B mode ultrasound and color Doppler flow imaging were used to evaluate carotid stenosis. Then, the vector arrows and flow streamline detected by V Flow were analyzed and the wall shear stress values (Pa) at the carotid stenosis site were measured. All patients were divided into symptomatic and asymptomatic groups according to whether they had acute/subacute stroke or other clinical symptoms within 2 weeks before ultrasound examination. The results of digital subtraction angiography or computed tomography angiography were used as the gold standard. The stenosis rate was calcified, according to North American Symptomatic Carotid Endarterectomy Trial criteria. The diagnostic values of wall shear stress, conventional ultrasound, and the combined diagnosis in carotid atherosclerotic stenosis were compared. RESULTS Finally, 88 patients with carotid atherosclerotic plaque were enrolled (71 males (80.7%), mean age 67.6 ± 5.4 years). The success rate of high-frame-rate vector flow imaging was 96.7% (88/91). The WSS value of symptomatic carotid stenosis (1.4 ± 0.15 Pa) was significantly higher than that of asymptomatic carotid stenosis (0.80 ± 0.08 Pa) (p < 0.05). Taking the wall shear stress value > 0.78 Pa as the diagnostic criteria for symptomatic carotid atherosclerotic plaque, the area under receiver operating characteristic curves was 0.79 with 87.1% sensitivity and 69.6% specificity. The area under receiver operating characteristic curves of the combined diagnosis (0.966) for differentiating severe carotid atherosclerotic stenosis was significantly higher than that of conventional ultrasound and WSS value, with 89.7% sensitivity and 93.2% specificity (p < 0.05). CONCLUSION As a non-invasive imaging method, the high-frame-rate vector flow imaging technique showed potential value in the preoperative assessment of the symptomatic carotid atherosclerotic stenosis and diagnosing carotid atherosclerotic stenosis in aging patients.
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Affiliation(s)
- Yi-Jie Qiu
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Juan Cheng
- Department of Ultrasound, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Qi Zhang
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Dao-Hui Yang
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Dan Zuo
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Feng Mao
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Ling-Xiao Liu
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Correspondence: (L.-X.L.); (Y.D.); Tel.: +86-(0)21-6404-1990 (ext. 2474) (L.-X.L.); +86-(0)21-2507-6104 (Y.D.); Fax: +86-(0)21-6422-0319 (L.-X.L.); +86-(0)21-2507-7258 (Y.D.)
| | - Yi Dong
- Department of Ultrasound, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
- Correspondence: (L.-X.L.); (Y.D.); Tel.: +86-(0)21-6404-1990 (ext. 2474) (L.-X.L.); +86-(0)21-2507-6104 (Y.D.); Fax: +86-(0)21-6422-0319 (L.-X.L.); +86-(0)21-2507-7258 (Y.D.)
| | - Si-Qi Cao
- Department of Ultrasound, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Wen-Ping Wang
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai 200032, China
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Nahas NE, Zaki A, Zakaria M, Naser AAE, Bassiony AE, Abdeldayem E, Shokri H, Bokl AE. Cognitive impairment in asymptomatic cerebral arterial stenosis: a P300 study. Neurol Sci 2023; 44:601-609. [PMID: 36258105 PMCID: PMC9842544 DOI: 10.1007/s10072-022-06442-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 10/03/2022] [Indexed: 01/17/2023]
Abstract
BACKGROUND Cerebral arterial stenosis (CAS), in the absence of a structural lesion, can result in cognitive impairment that represents an ongoing contention among studies. Accordingly, we investigated cognitive functions in asymptomatic patients with CAS, using P300 which is a neurophysiological tool. We also compared cognition in intracranial stenosis (ICS) and extracranial stenosis (ECS). METHODS Asymptomatic patients with CAS (≥ 70%) in the absence of structural brain lesions were categorized into ICS and ECS groups of 15 patients each, in addition to 15 normal controls. MRI, MRA, CT angiography, P300 analysis, Mini-Mental State examination (MMSE), Wisconsin Card Sorting Test (WCST), and Wechsler Memory Scale Test-Revised (WMST) were performed to all patients. RESULTS Impairment on all cognitive scales ranged from 70 up to 100% among CAS group. Prolonged p300 latency and reaction time correlated with worse performance on WMST (p = 0.02), while lower amplitude and decreased accuracy correlated with more errors on WCST (p = 0.01). ICS scores on WCTS were lower than those of ECS group (p = 0.001), while ECS had a longer reaction time (p = 0.02) and lower scores on MMS and WMST than those of ICS group (p = 0.03). CONCLUSION Patients with asymptomatic CAS had a high prevalence of cognitive dysfunction which places them at risk of higher morbidity. ICS group showed impairment on executive functions, while the ECS group showed predilection to memory and information processing dysfunction.
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Affiliation(s)
- Nevine El Nahas
- Neurology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Amr Zaki
- Neurology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Magd Zakaria
- Neurology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Azza Abd El Naser
- Neurology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Ahmed El Bassiony
- Neurology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Eman Abdeldayem
- Neurology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Hossam Shokri
- Neurology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Ahmed El Bokl
- Neurology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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Hsiao CL, Chen PY, Hsu PJ, Lin SK. Nomogram and Carotid Risk Score for Predicting Moderate or High Carotid Atherosclerosis among Asymptomatic Elderly Recycling Volunteers. Diagnostics (Basel) 2022; 12:diagnostics12061407. [PMID: 35741217 PMCID: PMC9221877 DOI: 10.3390/diagnostics12061407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/28/2022] [Accepted: 06/05/2022] [Indexed: 11/18/2022] Open
Abstract
Carotid atherosclerosis is associated with cardiovascular and cerebrovascular events. We explored an appropriate method for selecting participants without ischemic cerebrovascular disease but with various comorbidities eligible for a carotid ultrasound. This was a retrospective subgroup analysis of the carotid plaque burden from a previous study involving a vascular and cognitive survey of 956 elderly recycling volunteers (778 women and 178 men; mean age: 70.8 years). We used carotid ultrasound to detect the carotid plaque and computed the carotid plaque score (CPS). A moderate or high degree of carotid atherosclerosis (MHCA) was defined as CPS > 5 and was observed in 22% of the participants. The CPS had positive linear correlations with age, systolic blood pressure, and fasting glucose. We stratified the participants into four age groups: 60−69, 70−74, 75−79, and ≥80 years. Multivariable analysis revealed that significant predictors for MHCA were age, male sex, hypertension, diabetes mellitus, hyperlipidemia, coronary artery disease, and a nonvegetarian diet. Coronary artery disease and advanced age were the two strongest predictors. We chose the aforementioned seven significant predictors to establish a nomogram for MHCA prediction. The area under the receiver operating characteristic curve in internal validation with 10-fold cross-validation and the classification accuracy of the nomogram were 0.785 and 0.797, respectively. We presumed people who have a ≥50% probability of MHCA warranted a carotid ultrasound. A flowchart table derived from the nomogram addressing the probabilities of all models of combinations of comorbidities was established to identify participants who had a probability of MHCA ≥ 50% (corresponding to a total nomogram score of ≥15 points). We further established a carotid risk score range from 0 to 17 comprising the seven predictors. A carotid risk score ≥ 7 was the most optimal cutoff value associated with a probability of MHCA ≥ 50%. Both total nomogram score ≥ 15 points and carotid risk score ≥ 7 can help in the rapid identification of individuals without stroke but who have a ≥50% probability of MHCA—these individuals should schedule a carotid ultrasound.
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Affiliation(s)
- Cheng-Lun Hsiao
- Stroke Center and Department of Neurology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 23142, Taiwan; (C.-L.H.); (P.-Y.C.); (P.-J.H.)
| | - Pei-Ya Chen
- Stroke Center and Department of Neurology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 23142, Taiwan; (C.-L.H.); (P.-Y.C.); (P.-J.H.)
- School of Medicine, Tzu Chi University, Hualien 97004, Taiwan
| | - Po-Jen Hsu
- Stroke Center and Department of Neurology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 23142, Taiwan; (C.-L.H.); (P.-Y.C.); (P.-J.H.)
| | - Shinn-Kuang Lin
- Stroke Center and Department of Neurology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 23142, Taiwan; (C.-L.H.); (P.-Y.C.); (P.-J.H.)
- School of Medicine, Tzu Chi University, Hualien 97004, Taiwan
- Correspondence:
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Editor's Choice - Asymptomatic Carotid Stenosis and Cognitive Impairment: A Systematic Review. Eur J Vasc Endovasc Surg 2021; 61:888-899. [PMID: 33966986 DOI: 10.1016/j.ejvs.2021.03.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 03/20/2021] [Accepted: 03/22/2021] [Indexed: 11/22/2022]
Abstract
OBJECTIVE The aim was to evaluate the relationship between asymptomatic carotid stenosis (ACS) of any severity and cognitive impairment and to determine whether there is evidence supporting an aetiological role for ACS in the pathophysiology of cognitive impairment. DATA SOURCES PubMed/Medline, Embase, Scopus, and the Cochrane library. REVIEW METHODS This was a systematic review (35 cross sectional or longitudinal studies) RESULTS: Study heterogeneity confounded data interpretation, largely because of no standardisation regarding cognitive testing. In the 30 cross sectional and six longitudinal studies (one included both), 33/35 (94%) reported an association between any degree of ACS and one or more tests of impaired cognitive function (20 reported one to three tests with poorer cognition; 11 reported four to six tests with poorer cognition, while three studies reported seven or more tests with poorer cognition). There was no evidence that ACS caused cognitive impairment via silent cortical infarction, or via involvement in the pathophysiology of lacunar infarction or white matter hyperintensities. However, nine of 10 studies evaluating cerebral vascular reserve (CVR) reported that ACS patients with impaired CVR were significantly more likely to have cognitive impairment and that impaired CVR was associated with worsening cognition over time. Patients with severe ACS but normal CVR had cognitive scores similar to controls. CONCLUSION Notwithstanding significant heterogeneity within the constituent studies, which compromised overall interpretation, 94% of studies reported an association between ACS and one or more tests of cognitive impairment. However, "significant association" does not automatically imply an aetiological relationship. At present, there is no clear evidence that ACS causes cognitive impairment via silent cortical infarction (but very few studies have addressed this question) and no evidence of ACS involvement in the pathophysiology of white matter hyperintensities or lacunar infarction. There is, however, better evidence that patients with severe ACS and impaired CVR are more likely to have cognitive impairment and to suffer further cognitive decline with time.
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Li Z, Yang H, Zhang W, Wang J, Zhao Y, Cheng J. Prevalence of asymptomatic carotid artery stenosis in Chinese patients with lower extremity peripheral arterial disease: a cross-sectional study on 653 patients. BMJ Open 2021; 11:e042926. [PMID: 33931408 PMCID: PMC8098992 DOI: 10.1136/bmjopen-2020-042926] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE This study aimed to investigate the prevalence and identify predictive factors of asymptomatic carotid artery stenosis (ACAS) in Southern Chinese patients with peripheral arterial disease (PAD). DESIGN A cross-sectional study. SETTING AND PARTICIPANTS A total of 653 patients with PAD admitted to the First Affiliated Hospital of Chongqing Medical University from July 2014 to July 2019. MAIN OUTCOME MEASURES The degree of carotid stenosis was assessed by Duplex ultrasound and classified as normal (no stenosis), mild (<50% stenosis), moderate (50%-69% stenosis), severe (≥70% stenosis or near occlusion) and total occlusion. Patients with stenosis ≥50% were classified as having significant ACAS. Multivariable logistic regression analysis was used to calculate the risk associated with concomitant factors of ACAS. RESULTS The mean age was 71.5±5.5 years, and 55.9% of the patients were men. Significant ACAS stenosis accounted for 128 (19.6%) cases, including 68 (10.4%) cases of moderate stenosis (50%-69%), 46 (7.0%) cases of severe stenosis (70%-99%) and 14 (2.1%) cases of total occlusion. Multivariable analysis revealed that age ≥70 years (OR 2.0, 95% CI 1.25 to 3.18), an ankle brachial index (ABI) ≤0.5 (OR 3.39, 95% CI 1.34 to 8.55), an ABI ≤0.4 (OR 3.86, 95% CI 1.47 to 10.06) and Fontaine stage IV (OR 4.53, 95% CI 1.47 to 13.88) are predictive factors of significant ACAS. CONCLUSION The prevalence of significant ACAS (stenosis ≥50%) in patients with PAD was approximately 19.6%. Significant ACAS was more common in patients with PAD older than 70 years, particularly in patients with an ABI <0.5 and those classified as Fontaine stage IV. Selective carotid screening may be more worthwhile in these high-risk patients with PAD.
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Affiliation(s)
- Zhui Li
- Department of Vascular Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hong Yang
- Departments of Ultrasound, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Wenfang Zhang
- Departments of Ultrasound, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jing Wang
- Departments of Ultrasound, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yu Zhao
- Department of Vascular Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jun Cheng
- Department of Vascular Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Grande G, Qiu C, Fratiglioni L. Prevention of dementia in an ageing world: Evidence and biological rationale. Ageing Res Rev 2020; 64:101045. [PMID: 32171784 DOI: 10.1016/j.arr.2020.101045] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 02/21/2020] [Accepted: 03/10/2020] [Indexed: 12/31/2022]
Abstract
As the population ages, the number of people with dementia is expected to increase in the coming decades, with consequences at the societal and individual levels. In this narrative review, we provide a summary of the scientific evidence concerning dementia prevention, with a focus on the following three strategies: 1) Targeting the body to protect the brain, including prevention and treatment of cardiovascular morbidity; 2) Compensatory interventions to counteract brain ageing, including education and life-long engagement in cognitively and socially stimulating activities; and 3) Lifespan health promotion, such as a physically active lifestyle, smoking cessation, and a healthy and balanced diet. Next, we consider the biological mechanisms by which these strategies may act by taking into account the main pathways implicated in the development and progression of dementia: neurodegeneration, brain resilience, vascular damage, neuroinflammation, and oxidative stress. Based on the current evidence, and in line with the declining trends of dementia incidence in high-income countries, we conclude that timely multidomain preventive actions are promising strategies to reduce the dementia epidemic worldwide. There is still a considerable gap between the epidemiological evidence and its underlying biological mechanisms. Filling this gap will be crucial to move forward in dementia prevention worldwide.
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Chen GC, Chen PY, Su YC, Hsiao CL, Yang FY, Hsu PJ, Lin SK. Vascular, Cognitive, and Psychomental Survey on Elderly Recycling Volunteers in Northern Taiwan. Front Neurol 2019; 9:1176. [PMID: 30687225 PMCID: PMC6338017 DOI: 10.3389/fneur.2018.01176] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 12/20/2018] [Indexed: 12/01/2022] Open
Abstract
Background: Stroke and dementia represent frequent causes of psychophysical and socioeconomic burdens. We conducted a vascular, cognitive, and psychomental survey involving elderly volunteers at community-based recycling stations in Northern Taiwan. Methods: Recycling volunteers aged ≥60 years were surveyed. We recorded seven parameters, namely (1) body mass index (BMI), (2) fasting glucose, (3) fasting cholesterol, (4) ankle-brachial index (ABI), (5) carotid duplex sonography, (6) five-item Brief Symptom Rating Scale (BSRS-5) score, and (7) eight-item Interview to Differentiate Aging and Dementia (AD8). During the carotid duplex study, we measured the carotid intima-media thickness (CIMT) and the carotid total plaque score (CTPS) of the common and internal carotid arteries. Results: In total, 985 subjects (mean age: 70.8 years) participated in this study. Among these, 81% were women, and 52% were vegetarians. The average ABI, CIMT, and CTPS were higher in men, whereas women had higher cholesterol levels and BSRS-5 scores. Obesity, hypertension, hyperglycemia, and hyperlipidemia were present in 21, 38, 9, and 27% of all subjects, respectively. Carotid plaques with mild (CTPS 1–5), moderate (CTPS 5.1–10), and severe (CTPS > 10) atherosclerosis were detected in 45, 16, and 7% of the subjects, respectively. Mild cognitive impairment (AD8 > 2) was observed in 13% of the subjects, whereas moderate mood disorder (BSRS-5≧10) was observed in only 1% of subjects. Vegetarians had a lower BMI, systolic blood pressure (SBP), cholesterol, CIMT, and CTPS than did non-vegetarians. Substantial predictors of severe atherosclerosis were advanced age (>70 years), male sex, history of heart disease, hyperlipidemia, and currently elevated SBP and cholesterol levels. Predictors of mild cognitive impairment were illiteracy, history of hypertension, hyperlipidemia, and moderate mood disorder. Conclusions: Subclinical carotid atherosclerosis was common in elderly recycling volunteers, with 23% having moderate to severe stenosis. Vegetarians had a reduced risk of atherosclerosis. The low incidence of moderate mood disorder might indicate that recycling work enhances psychomental health. In addition, a healthier lifestyle, better mood condition, and vegetarian diet might contribute to lower incidence of mild cognitive impairment.
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Affiliation(s)
- Guei-Chiuan Chen
- Stroke Center and Department of Neurology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
| | - Pei-Ya Chen
- Stroke Center and Department of Neurology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
| | - Yu-Chin Su
- Stroke Center and Department of Neurology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Cheng-Lun Hsiao
- Stroke Center and Department of Neurology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
| | - Fu-Yi Yang
- Stroke Center and Department of Neurology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
| | - Po-Jen Hsu
- Stroke Center and Department of Neurology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
| | - Shinn-Kuang Lin
- Stroke Center and Department of Neurology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan
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Cognitive impairment correlates with serum carbonyl compound profiles in subclinical carotid atherosclerosis. Neuroreport 2018; 29:1550-1557. [DOI: 10.1097/wnr.0000000000001147] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Wu L, Yan Z, Jiang H, Xing H, Li H, Qiu C. Serum cystatin C, impaired kidney function, and geriatric depressive symptoms among older people living in a rural area: a population-based study. BMC Geriatr 2018; 18:265. [PMID: 30400830 PMCID: PMC6219054 DOI: 10.1186/s12877-018-0957-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Accepted: 10/18/2018] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The relationship between kidney function and depressive symptoms among elderly people has been rarely investigated in settings of the general population. The aim of our study was to examine the association of serum cystatin C (cysC) and impaired kidney function with geriatric depressive symptoms among older people living in a rural community in China. METHODS This population-based cohort study included 1440 individuals (age ≥ 60 years) who were recruited for the Confucius Hometown Aging Project in 2010-2011; of the 1124 persons who were free of depressive symptoms, 669 (59.5%) were re-examined in 2014-2016. At baseline, data on demographics, lifestyle factors, health conditions, and medical history were collected through interviews, clinical examinations, and laboratory tests. We defined impaired kidney function as the cystatin C-based estimated glomerular filtration rate (eGFRcysC) < 60 ml/min/1.73 m2, and depressive symptoms as a score ≥ 5 on the 15-item Geriatric Depression Scale. Data were analyzed using multiple logistic and Cox proportional-hazards models. RESULTS Of the 1440 participants, 316 (21.9%) were defined to have geriatric depressive symptoms at baseline. Serum cysC levels of 1.01-1.25 and > 1.25 mg/L (vs. ≤1.00 mg/L) were associated with a multiple-adjusted odds ratio (OR) of 1.41 (95% CI 1.01-1.97) and 3.20 (2.32-4.41), respectively, for having geriatric depressive symptoms (Ptrend < 0.001). Of the 669 people who were free of depressive symptoms at baseline, 157 had incident depressive symptoms at the follow-up examination. The multiple-adjusted hazard ratio (HR) for incident depressive symptoms were 2.16 (95% CI 1.43-3.27) for serum cysC > 1.25 mg/L (vs. < 1.00 mg/L). Impaired kidney function was cross-sectionally (multiple-adjusted OR = 2.95; 95% CI 2.22-3.92) and longitudinally (multiple-adjusted HR 1.54; 95% CI 1.03-2.30) associated with an increased risk of geriatric depressive symptoms. CONCLUSION Elevated serum cysC levels and impaired kidney function are associated with an increased risk of geriatric depressive symptoms among Chinese older people living in a rural community.
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Affiliation(s)
- Ling Wu
- Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Department of Neurology, Jining No. 1 People's Hospital, Jiankang Road 6, Jining, 272111, Shandong, China
| | - Zhongrui Yan
- Department of Neurology, Jining No. 1 People's Hospital, Jiankang Road 6, Jining, 272111, Shandong, China.
| | - Hui Jiang
- Xing Long Zhuang Hospital, Shandong Yankuang Group, Jining, Shandong, China
| | - Huaimei Xing
- Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Department of Neurology, Jining No. 1 People's Hospital, Jiankang Road 6, Jining, 272111, Shandong, China
| | - Haohao Li
- Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Department of Neurology, Jining No. 1 People's Hospital, Jiankang Road 6, Jining, 272111, Shandong, China
| | - Chengxuan Qiu
- Department of Neurology, Shandong Provincial Hospital, Jinan, Shandong, China. .,Aging Research Center, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet-Stockholm University, Widerströmska Huset, Tomtebodavägen 18A, 171 65, Solna, Sweden.
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Chen WH, Jin W, Lyu PY, Liu Y, Li R, Hu M, Xiao XJ. Carotid Atherosclerosis and Cognitive Impairment in Nonstroke Patients. Chin Med J (Engl) 2018; 130:2375-2379. [PMID: 28937045 PMCID: PMC5634090 DOI: 10.4103/0366-6999.215331] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Objective: As a vascular risk factor, carotid atherosclerosis is crucial to cognitive impairment. While carotid intima-media thickness, carotid artery plaque, and carotid stenosis can reflect carotid atherosclerosis in different stages, this review aimed to explore researches on the role of carotid intima-media thickness, carotid artery plaque, and carotid stenosis in the progress of cognitive impairment in nonstroke patients and tried to illustrate the possible mechanisms. Data Sources: We searched the PubMed database for recently published research articles up to July 2017, with the key words of “carotid atherosclerosis,” “carotid intima-media thickness,” “carotid plaque,” “carotid stenosis,” “nonstroke,” and “cognitive impairment.” Study Selection: Articles were obtained and reviewed to analyze the role of carotid atherosclerosis such as carotid intima-thickness, carotid plaque, and carotid stenosis in the progress of cognitive impairment in nonstroke patients and the possible mechanisms. Results: In recent years, most studies proved that by evaluating carotid atherosclerosis with ultrasonography, carotid atherosclerosis accounts for the development of cognitive decline in nonstroke patients. Carotid atherosclerosis not only impairs the subtle general cognitive function but also decreases the specific domains of cognitive function, such as memory, motor function, visual perception, attention, and executive function. But, it is still controversial. The possible mechanisms of cognitive impairment in nonstroke patients with carotid atherosclerosis can be classified as systemic global cerebrovascular function, small-vessel diseases, and the mixed lesions. Conclusions: Carotid atherosclerosis can be used to predict the risk of cognitive impairment. Furthermore, diagnosing and treating carotid atherosclerosis at early stage might help clinicians prevent and treat vascular cognitive impairment in nonstroke patients.
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Affiliation(s)
- Wei-Hong Chen
- Graduate School, Hebei Medical University; Department of Neurology, Hebei General Hospital, Shijiazhuang, Hebei 050051, China
| | - Wei Jin
- Department of Neurology, Hebei General Hospital, Shijiazhuang, Hebei 050051, China
| | - Pei-Yuan Lyu
- Graduate School, Hebei Medical University; Department of Neurology, Hebei General Hospital, Shijiazhuang, Hebei 050051, China
| | - Yang Liu
- Graduate School, Hebei Medical University; Department of Neurology, Hebei General Hospital, Shijiazhuang, Hebei 050051, China
| | - Rui Li
- Graduate School, Hebei Medical University; Department of Neurology, Hebei General Hospital, Shijiazhuang, Hebei 050051, China
| | - Ming Hu
- Department of Neurology, Hebei General Hospital, Shijiazhuang, Hebei 050051, China
| | - Xiang-Jian Xiao
- Department of Neurology, Hebei General Hospital, Shijiazhuang, Hebei 050051, China
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Schapira AHV. Advances and insights into neurological practice 2016−17. Eur J Neurol 2017; 24:1425-1434. [DOI: 10.1111/ene.13480] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Meschia JF, Klaas JP, Brown RD, Brott TG. Evaluation and Management of Atherosclerotic Carotid Stenosis. Mayo Clin Proc 2017; 92:1144-1157. [PMID: 28688468 PMCID: PMC5576141 DOI: 10.1016/j.mayocp.2017.02.020] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 01/26/2017] [Accepted: 02/24/2017] [Indexed: 11/22/2022]
Abstract
Medical therapies for the prevention of stroke have advanced considerably in the past several years. There can also be a role for mechanical restoration of the lumen by endarterectomy or stenting in selected patients with high-grade atherosclerotic stenosis of the extracranial carotid artery. Endarterectomy is generally recommended for patients with high-grade symptomatic carotid stenosis. Stenting is considered an option for patients at high risk of complications with endarterectomy. Whether revascularization is better than contemporary medical therapy for asymptomatic extracranial carotid stenosis is a subject of several ongoing randomized clinical trials in the United States and internationally.
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