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Chuang SY, Liu WL, Cheng HM, Chung RH, Lai CH, Chuang SC, Wu IC, Chang HY, Hsiung CA, Chen WJ, Hsu CC. Pulse pressure is associated with decline in physical function in older adults. Maturitas 2024; 185:108000. [PMID: 38669896 DOI: 10.1016/j.maturitas.2024.108000] [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: 10/18/2023] [Revised: 03/25/2024] [Accepted: 04/15/2024] [Indexed: 04/28/2024]
Abstract
OBJECTIVES This study examined the associations between pulse pressure, hypertension, and the decline in physical function in a prospective framework. STUDY DESIGN The Healthy Aging Longitudinal Study tracked a group of Taiwanese adults aged 55 or more over an average of 6.19 years to assess pulse pressure and decline in physical function, including in handgrip strength, gait speed, and 6-min walking distance, at baseline (2009-2013) and in the second phase of assessments (2013-2020). MAIN OUTCOME MEASURES Pulse pressure was calculated as the difference between systolic and diastolic blood pressure values. Weakness, slowness, and low endurance were defined as decreases of ≥0.23 m/s (one standard deviation) in gait speed, ≥5.08 kg in handgrip strength, and ≥ 57.73 m in a 6-min walk, as determined from baseline to the second phase of assessment. Linear and logistic regressions were employed to evaluate the associations between pulse pressure, hypertension, and decline in physical function. RESULTS Baseline pulse pressure was associated with future handgrip strength (beta = -0.017, p = 0.0362), gait speed (beta = -0.001, p < 0.0001), and 6-min walking distance (beta = -0.470, p < 0001). In multivariable models, only handgrip strength (beta = -0.016, p = 0.0135) and walking speed (beta = -0.001, p = 0.0042) remained significantly associated with future pulse pressure. Older adults with high systolic blood pressure (≥140 mmHg) and elevated pulse pressure (≥60 mmHg) exhibited a significantly increased risk of weakness (odds ratio: 1.30, 95 % confidence interval: 1.08-1.58), slowness (1.29, 1.04-1.59), and diminished endurance (1.25, 1.04-1.50) compared with the reference group, who exhibited systolic blood pressure of <140 mmHg and pulse pressure of <60 mmHg. CONCLUSIONS Among older adults, pulse pressure is associated with a decline in physical function, especially in terms of strength and locomotion.
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Affiliation(s)
- Shao-Yuan Chuang
- Institute of Population Health Sciences, National Health Research Institutes, Taiwan.
| | - Wen-Ling Liu
- Institute of Population Health Sciences, National Health Research Institutes, Taiwan
| | - Hao-Min Cheng
- Program of Interdisciplinary Medicine (PIM), National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan; Division of Faculty Development, Taipei Veterans General Hospital, Taipei, Taiwan; Center for Evidence-based Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Public Health, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan; Institute of Health and Welfare Policy, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan
| | - Ren-Hua Chung
- Institute of Population Health Sciences, National Health Research Institutes, Taiwan
| | - Chia-Hung Lai
- Institute of Population Health Sciences, National Health Research Institutes, Taiwan
| | - Shu-Chun Chuang
- Institute of Population Health Sciences, National Health Research Institutes, Taiwan
| | - I-Chien Wu
- Institute of Population Health Sciences, National Health Research Institutes, Taiwan
| | - Hsing-Yi Chang
- Institute of Population Health Sciences, National Health Research Institutes, Taiwan
| | - Chao Agnes Hsiung
- Institute of Population Health Sciences, National Health Research Institutes, Taiwan
| | - Wei J Chen
- Center for Neuropsychiatric Research, National Health Research Institutes, Taiwan; Institute of Epidemiology and Preventive Medicine, National Taiwan University, Taipei, Taiwan
| | - Chih-Cheng Hsu
- Institute of Population Health Sciences, National Health Research Institutes, Taiwan; National Center for Geriatrics and Welfare Research, National Health Research Institutes, Taiwan.
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Wang J, Wang Y, Cai X, Xia W, Zhu J. A Review: visuospatial dysfunction in patients with the cerebral small vessel disease. Neuroscience 2024:S0306-4522(24)00264-1. [PMID: 38880241 DOI: 10.1016/j.neuroscience.2024.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2024] [Revised: 06/06/2024] [Accepted: 06/10/2024] [Indexed: 06/18/2024]
Abstract
Cerebral small vessel disease (CSVD) impairs visuospatial function, and this is one of the most obvious areas of cognitive impairment in CSVD. So, recognizing, monitoring, and treating visuospatial dysfunction are all important to the prognosis of CSVD. This review discussed the anatomical and pathological mechanisms, clinical recognition (scales, imaging, and biomarkers), and treatment of cognitive impairment especially visuospatial dysfunction in CSVD.
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Affiliation(s)
- Jiaxing Wang
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Youmeng Wang
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiuying Cai
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Wei Xia
- Department of Ophthalmology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Juehua Zhu
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, China.
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Pacholko A, Iadecola C. Hypertension, Neurodegeneration, and Cognitive Decline. Hypertension 2024; 81:991-1007. [PMID: 38426329 PMCID: PMC11023809 DOI: 10.1161/hypertensionaha.123.21356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Elevated blood pressure is a well-established risk factor for age-related cognitive decline. Long linked to cognitive impairment on vascular bases, increasing evidence suggests a potential association of hypertension with the neurodegenerative pathology underlying Alzheimer disease. Hypertension is well known to disrupt the structural and functional integrity of the cerebral vasculature. However, the mechanisms by which these alterations lead to brain damage, enhance Alzheimer pathology, and promote cognitive impairment remain to be established. Furthermore, critical questions concerning whether lowering blood pressure by antihypertensive medications prevents cognitive impairment have not been answered. Recent developments in neurovascular biology, brain imaging, and epidemiology, as well as new clinical trials, have provided insights into these critical issues. In particular, clinical and basic findings on the link between neurovascular dysfunction and the pathobiology of neurodegeneration have shed new light on the overlap between vascular and Alzheimer pathology. In this review, we will examine the progress made in the relationship between hypertension and cognitive impairment and, after a critical evaluation of the evidence, attempt to identify remaining knowledge gaps and future research directions that may advance our understanding of one of the leading health challenges of our time.
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Affiliation(s)
- Anthony Pacholko
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY
| | - Costantino Iadecola
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY
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Jaisa-aad M, Muñoz-Castro C, Serrano-Pozo A. Update on modifiable risk factors for Alzheimer's disease and related dementias. Curr Opin Neurol 2024; 37:166-181. [PMID: 38265228 PMCID: PMC10932854 DOI: 10.1097/wco.0000000000001243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
PURPOSE OF REVIEW All human beings undergo a lifelong cumulative exposure to potentially preventable adverse factors such as toxins, infections, traumatisms, and cardiovascular risk factors, collectively termed exposome. The interplay between the individual's genetics and exposome is thought to have a large impact in health outcomes such as cancer and cardiovascular disease. Likewise, a growing body of evidence is supporting the idea that preventable factors explain a sizable proportion of Alzheimer's disease and related dementia (ADRD) cases. RECENT FINDINGS Here, we will review the most recent epidemiological, experimental preclinical, and interventional clinical studies examining some of these potentially modifiable risk factors for ADRD. We will focus on new evidence regarding cardiovascular risk factors, air pollution, viral and other infectious agents, traumatic brain injury, and hearing loss. SUMMARY While greater and higher quality epidemiological and experimental evidence is needed to unequivocally confirm their causal link with ADRD and/or unravel the underlying mechanisms, these modifiable risk factors may represent a window of opportunity to reduce ADRD incidence and prevalence at the population level via health screenings, and education and health policies.
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Affiliation(s)
- Methasit Jaisa-aad
- Massachusetts General Hospital, Boston, MA 02114
- Harvard Medical School, Boston, MA 02115
| | - Clara Muñoz-Castro
- Massachusetts General Hospital, Boston, MA 02114
- Harvard Medical School, Boston, MA 02115
- Universidad de Sevilla, Sevilla (Spain)
| | - Alberto Serrano-Pozo
- Massachusetts General Hospital, Boston, MA 02114
- Harvard Medical School, Boston, MA 02115
- Massachusetts Alzheimer’s Disease Research Center
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Scheuermann BC, Parr SK, Schulze KM, Kunkel ON, Turpin VG, Liang J, Ade CJ. Associations of Cerebrovascular Regulation and Arterial Stiffness With Cerebral Small Vessel Disease: A Systematic Review and Meta-Analysis. J Am Heart Assoc 2023; 12:e032616. [PMID: 37930079 PMCID: PMC10727345 DOI: 10.1161/jaha.123.032616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 10/24/2023] [Indexed: 11/07/2023]
Abstract
BACKGROUND Cerebral small vessel disease (cSVD) is a major contributing factor to ischemic stroke and dementia. However, the vascular pathologies of cSVD remain inconclusive. The aim of this systematic review and meta-analysis was to characterize the associations between cSVD and cerebrovascular reactivity (CVR), cerebral autoregulation, and arterial stiffness (AS). METHODS AND RESULTS MEDLINE, Web of Science, and Embase were searched from inception to September 2023 for studies reporting CVR, cerebral autoregulation, or AS in relation to radiological markers of cSVD. Data were extracted in predefined tables, reviewed, and meta-analyses performed using inverse-variance random effects models to determine pooled odds ratios (ORs). A total of 1611 studies were identified; 142 were included in the systematic review, of which 60 had data available for meta-analyses. Systematic review revealed that CVR, cerebral autoregulation, and AS were consistently associated with cSVD (80.4%, 78.6%, and 85.4% of studies, respectively). Meta-analysis in 7 studies (536 participants, 32.9% women) revealed a borderline association between impaired CVR and cSVD (OR, 2.26 [95% CI, 0.99-5.14]; P=0.05). In 37 studies (27 952 participants, 53.0% women) increased AS, per SD, was associated with cSVD (OR, 1.24 [95% CI, 1.15-1.33]; P<0.01). Meta-regression adjusted for comorbidities accounted for one-third of the AS model variance (R2=29.4%, Pmoderators=0.02). Subgroup analysis of AS studies demonstrated an association with white matter hyperintensities (OR, 1.42 [95% CI, 1.18-1.70]; P<0.01). CONCLUSIONS The collective findings of the present systematic review and meta-analyses suggest an association between cSVD and impaired CVR and elevated AS. However, longitudinal investigations into vascular stiffness and regulatory function as possible risk factors for cSVD remain warranted.
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Affiliation(s)
| | - Shannon K. Parr
- Department of KinesiologyKansas State UniversityManhattanKSUSA
| | | | | | | | - Jia Liang
- Department of Biostatistics, St. Jude Children’s Research HospitalMemphisTNUSA
| | - Carl J. Ade
- Department of KinesiologyKansas State UniversityManhattanKSUSA
- Department of Physician’s Assistant Studies, Kansas State UniversityManhattanKSUSA
- Johnson Cancer Research CenterKansas State UniversityManhattanKSUSA
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Henneicke S, Meuth SG, Schreiber S. [Cerebral Small Vessel Disease: Advances in Understanding its Pathophysiology]. FORTSCHRITTE DER NEUROLOGIE-PSYCHIATRIE 2023; 91:494-502. [PMID: 38081163 DOI: 10.1055/a-2190-8957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Sporadic cerebral small vessel disease determines age- and vascular-risk-factor-related processes of the small brain vasculature. The underlying pathology develops in a stage-dependent manner - probably over decades - often already starting in midlife. Endothelial and pericyte activation precedes blood-brain barrier leaks, extracellular matrix remodeling and neuroinflammation, which ultimately result in bleeds, synaptic and neural dysfunction. Hemodynamic compromise of the small vessel walls promotes perivascular drainage failure and accumulation of neurotoxic waste products in the brain. Clinical diagnosis is mainly based on magnetic resonance imaging according to the Standards for Reporting Vascular Changes on Neuroimaging 2. Cerebral amyloid angiopathy is particularly stratified according to the Boston v2.0 criteria. Small vessel disease of the brain could be clinically silent, or manifested through a heterogeneous spectrum of diseases, where cognitive decline and stroke-related symptoms are the most common ones. Prevention and therapy are centered around vascular risk factor control, physically and cognitively enriched life style and, presumably, maintenance of a good sleep quality, which promotes sufficient perivascular drainage. Prevention of ischemic stroke through anticoagulation that carries at the same time an increased risk for large brain hemorrhages - particularly in the presence of disseminated cortical superficial siderosis - remains one of the main challenges. The cerebral small vessel disease field is rapidly evolving, focusing on the establishment of early disease stage imaging and biofluid biomarkers of neurovascular unit remodeling and the compromise of perivascular drainage. New prevention and therapy strategies will correspondingly center around the dedicated targeting of, e. g., cellular small vessel wall and perivascular tissue structures. Growing knowledge about brain microvasculature bridging neuroimmunological, neurovascular and neurodegenerative fields might lead to a rethink about apparently separate disease entities and the development of overarching concepts for a common line of prevention and treatment for several diseases.
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Affiliation(s)
- Solveig Henneicke
- Neurologie, Otto-von-Guericke-Universität Magdeburg Medizinische Fakultät, Magdeburg, Germany
| | | | - Stefanie Schreiber
- Neurologie, Otto-von-Guericke-Universität Magdeburg Medizinische Fakultät, Magdeburg, Germany
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Noriega de la Colina A, Lioutas VA. Arterial Stiffness as the Prevailing Risk Factor for Cerebral Small Vessel Disease in Stroke-Free Individuals. Stroke 2023; 54:2822-2823. [PMID: 37846564 DOI: 10.1161/strokeaha.123.044475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Affiliation(s)
- Adrián Noriega de la Colina
- Cognitive Neuroscience Unit, Department of Neurology and Neurosurgery, The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal, Quebec, Canada (A.N.d.l.C.)
| | - Vasileios-Arsenios Lioutas
- Division of Cerebrovascular Diseases, Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA (V.-A.L.)
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Chad JA, Sochen N, Chen JJ, Pasternak O. Implications of fitting a two-compartment model in single-shell diffusion MRI. Phys Med Biol 2023; 68:10.1088/1361-6560/ad0216. [PMID: 37816373 PMCID: PMC10929942 DOI: 10.1088/1361-6560/ad0216] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 10/10/2023] [Indexed: 10/12/2023]
Abstract
It is becoming increasingly common for studies to fit single-shell diffusion MRI data to a two-compartment model, which comprises a hindered cellular compartment and a freely diffusing isotropic compartment. These studies consistently find that the fraction of the isotropic compartment (f) is sensitive to white matter (WM) conditions and pathologies, although the actual biological source of changes infhas not been validated. In this work we put aside the biological interpretation offand study the sensitivity implications of fitting single-shell data to a two-compartment model. We identify a nonlinear transformation between the one-compartment model (diffusion tensor imaging, DTI) and a two-compartment model in which the mean diffusivities of both compartments are effectively fixed. While the analytic relationship implies that fitting this two-compartment model does not offer any more information than DTI, it explains why metrics derived from a two-compartment model can exhibit enhanced sensitivity over DTI to certain types of WM processes, such as age-related WM differences. The sensitivity enhancement should not be viewed as a substitute for acquiring multi-shell data. Rather, the results of this study provide insight into the consequences of choosing a two-compartment model when only single-shell data is available.
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Affiliation(s)
- Jordan A. Chad
- Rotman Research Institute, Baycrest Academy for Research and Education, Toronto, ON, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada
| | - Nir Sochen
- School of Mathematical Sciences, Tel Aviv University, Tel Aviv, Israel
- School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - J Jean Chen
- Rotman Research Institute, Baycrest Academy for Research and Education, Toronto, ON, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON, Canada
| | - Ofer Pasternak
- Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States of America
- Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States of America
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Zhao X, Yin L, Yu L, Jiang X, Tian N, Yin Z. Correlation study and clinical value analysis between cerebral microbleeds and white matter hyperintensity with high-field susceptibility-weighted imaging. Medicine (Baltimore) 2023; 102:e35003. [PMID: 37682129 PMCID: PMC10489355 DOI: 10.1097/md.0000000000035003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 08/08/2023] [Indexed: 09/09/2023] Open
Abstract
This study aimed to investigate the relationship between white matter hyperintensity (WMH) and cerebral microbleeds (CMBs) using susceptibility-weighted imaging (SWI) with high resolution. Additionally, it sought to analyze the clinical significance of SWI with high resolution and its potential to guide intravenous thrombolysis in stroke patients. In this retrospective analysis, we examined 96 patients with hypertension after acute stroke in our hospital using SWI. Demographic and medical data of these 96 patients were collected. Spearman correlation analysis was performed to investigate the relationship between CMBs and the grading of WMH. A significant positive correlation was observed between CMBs and the grade of WMH (R = 0.593, P < .05). The data also revealed a superior ROC area under the curve for the modified Fazekas grading of WMH, which was 0.814 (P < .05). There is a positive correlation between CMBs and the grading of leukoaraiosis in patients with acute stroke and hypertension. The higher the degree of WMH, the more severe the microvascular lesions, increasing the likelihood of intracranial hemorrhage. SWI can provide valuable guidance for administering intravenous thrombolysis in patients with acute stroke.
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Affiliation(s)
- Xiumin Zhao
- Department of Neurology, Shandong Provincial Third Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Liang Yin
- Department of Radiology, Shandong Provincial Third Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Lei Yu
- Department of Radiology, Shandong Provincial Third Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xiangsen Jiang
- Department of Radiology, Shandong Provincial Third Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ning Tian
- Department of Radiology, Shandong Provincial Third Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Zudong Yin
- Department of Radiology, Shandong Provincial Third Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
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