scholarly journals Neuroprotection and Neurodegeneration in Alzheimer’s Disease: Role of Cardiovascular Disease Risk Factors, Implications for Dementia Rates, and Prevention with Aerobic Exercise in African Americans

2012 ◽  
Vol 2012 ◽  
pp. 1-14 ◽  
Author(s):  
Thomas O. Obisesan ◽  
Richard F. Gillum ◽  
Stephanie Johnson ◽  
Nisser Umar ◽  
Deborah Williams ◽  
...  

Prevalence of Alzheimer’s disease (AD) will reach epidemic proportions in the United States and worldwide in the coming decades, and with substantially higher rates in African Americans (AAs) than in Whites. Older age, family history, low levels of education, and ɛ4 allele of the apolipoprotein E (APOE) gene are recognized risk factors for the neurodegeneration in AD and related disorders. In AAs, the contributions of APOE gene to AD risk continue to engender a considerable debate. In addition to the established role of cardiovascular disease (CVD) risk in vascular dementia, it is now believed that CVD risk and its endophenotype may directly comediate AD phenotype. Given the pleiotropic effects of APOE on CVD and AD risks, the higher rates of CVD risks in AAs than in Whites, it is likely that CVD risks contribute to the disproportionately higher rates of AD in AAs. Though the advantageous effects of aerobic exercise on cognition is increasingly recognized, this evidence is hardly definitive, and data on AAs is lacking. In this paper, we will discuss the roles of CVD risk factors in the development of AD and related dementias, the susceptibility of these risk factors to physiologic adaptation, and fitness-related improvements in cognitive function. Its relevance to AD prevention in AAs is emphasized.


2021 ◽  
Vol 10 (19) ◽  
pp. 4360
Author(s):  
Iska Avitan ◽  
Yudit Halperin ◽  
Trishna Saha ◽  
Naamah Bloch ◽  
Dana Atrahimovich ◽  
...  

Alzheimer’s disease (AD) is often comorbid with other pathologies. First, we review shortly the diseases most associated with AD in the clinic. Then we query PubMed citations for the co-occurrence of AD with other diseases, using a list of 400 common pathologies. Significantly, AD is found to be associated with schizophrenia and psychosis, sleep insomnia and apnea, type 2 diabetes, atherosclerosis, hypertension, cardiovascular diseases, obesity, fibrillation, osteoporosis, arthritis, glaucoma, metabolic syndrome, pain, herpes, HIV, alcoholism, heart failure, migraine, pneumonia, dyslipidemia, COPD and asthma, hearing loss, and tobacco smoking. Trivially, AD is also found to be associated with several neurodegenerative diseases, which are disregarded. Notably, our predicted results are consistent with the previously published clinical data and correlate nicely with individual publications. Our results emphasize risk factors and promulgate diseases often associated with AD. Interestingly, the comorbid diseases are often degenerative diseases exacerbated by reactive oxygen species, thus underlining the potential role of antioxidants in the treatment of AD and comorbid diseases.



Circulation ◽  
2014 ◽  
Vol 129 (suppl_1) ◽  
Author(s):  
Solomon K Musani ◽  
Ramachandran Vasan ◽  
Aurelian Bidulescu ◽  
Jung Lee ◽  
Gregory Wilson ◽  
...  

Background: The usefulness of biomarkers from different biologic pathways for predicting cardiovascular disease (CVD) events among African Americans is not well understood. Methods: We evaluated prospectively 3,102 Jackson Heart Study participants (mean age 54 years; 64% women) with data on a panel of 9 biomarkers representing inflammation (high sensitivity C - reactive protein), adiposity (adiponectin, leptin), neurohormonal activation (B-type natriuretic peptide [BNP], aldosterone, and cortisol); insulin resistance (HOMA-IR); and endothelial function (endothelin and homocysteine). We used Cox proportional hazard regression to relate the biomarker panel to the incidence of CVD (stroke, coronary heart disease, angina, heart failure and intermittent claudication) adjusting for standard CVD risk factors. Results: On follow-up (median 8.2 years), 224 participants (141 women) experienced a first CVD event, and 238 (140 women) died. Circulating concentrations of aldosterone, BNP and HOMA-IR were associated with CVD (multivariable-adjusted hazard ratios [HR] and 95% confidence interval [CI] per standard deviation (SD) increase in log-biomarker) were, respectively 1.15, (95% CI 1.01-1.30, p=0.016), 1.97, (95% CI 1.22-2.41, p<0.0001), and 1.30, (95% CI 1.10-1.52, p=0.0064). Blood cortisol and homocysteine were associated with death (HR per SD increment log-biomarker, respectively, 1.17, (95% CI 1.01-1.35, p=0.042), and 1.24, (95% CI 1.10-1.40, pvalue=0.0005). Biomarkers improved risk reclassification by 0.135; 0.120 of which was gained in classification of participants that experienced CVD events and 0.015 from participants that did not. Also, biomarkers marginally increased the model c-statistic beyond traditional risk factors. Conclusions: In our community-based sample of African Americans, circulating aldosterone, BNP and HOMA-IR predicted CVD risk, whereas serum cortisol and homocysteine predicted death. However, the incremental yield of biomarkers over traditional risk factors for risk prediction was minimal.



2020 ◽  
Vol 105 (5) ◽  
pp. e2032-e2038 ◽  
Author(s):  
Viral N Shah ◽  
Ryan Bailey ◽  
Mengdi Wu ◽  
Nicole C Foster ◽  
Rodica Pop-Busui ◽  
...  

Abstract Context Cardiovascular disease (CVD) is a major cause of mortality in adults with type 1 diabetes. Objective We prospectively evaluated CVD risk factors in a large, contemporary cohort of adults with type 1 diabetes living in the United States. Design Observational study of CVD and CVD risk factors over a median of 5.3 years. Setting The T1D Exchange clinic network. Patients Adults (age ≥ 18 years) with type 1 diabetes and without known CVD diagnosed before or at enrollment. Main Outcome Measure Associations between CVD risk factors and incident CVD were assessed by multivariable logistic regression. Results The study included 8,727 participants (53% female, 88% non-Hispanic white, median age 33 years [interquartile ratio {IQR} = 21, 48], type 1 diabetes duration 16 years [IQR = 9, 26]). At enrollment, median HbA1c was 7.6% (66 mmol/mol) (IQR = 6.9 [52], 8.6 [70]), 33% used a statin, and 37% used blood pressure medication. Over a mean follow-up of 4.6 years, 325 (3.7%) participants developed incident CVD. Ischemic heart disease was the most common CVD event. Increasing age, body mass index, HbA1c, presence of hypertension and dyslipidemia, increasing duration of diabetes, and diabetic nephropathy were associated with increased risk for CVD. There were no significant gender differences in CVD risk. Conclusion HbA1c, hypertension, dyslipidemia and diabetic nephropathy are important risk factors for CVD in adults with type 1 diabetes. A longer follow-up is likely required to assess the impact of other traditional CVD risk factors on incident CVD in the current era.



2006 ◽  
Vol 14 (7S_Part_6) ◽  
pp. P339-P339
Author(s):  
Olivia J. Conway ◽  
Minerva M. Carrasquillo ◽  
Jenny M. Bredenberg ◽  
Joseph S. Reddy ◽  
Curtis S. Younkin ◽  
...  


2019 ◽  
Vol 54 ◽  
pp. 100764 ◽  
Author(s):  
Hao Wu ◽  
Sophie Dunnett ◽  
Yuen-Shan Ho ◽  
Raymond Chuen-Chung Chang


2019 ◽  
Vol 29 ◽  
pp. S132
Author(s):  
Jodie Lord ◽  
Rebecca Green ◽  
Christopher Hübel ◽  
Marcus Richards ◽  
Pak Sham ◽  
...  


CNS Spectrums ◽  
2003 ◽  
Vol 8 (11) ◽  
pp. 824-831 ◽  
Author(s):  
Ramit Ravona-Springer ◽  
Michael Davidson ◽  
Shlomo Noy

ABSTRACTThe distinction between Alzheimer's disease and vascular dementia, the two most common types of dementia, has been undermined by recent advances in epidemiologic, clinical, imaging, and neuropathological studies. Cardiovascular risk factors, traditionally regarded as distinguishing criteria between the two entities, have been shown to be associated with both AD and vascular dementia. In this article, we propose mechanisms of action of cardiovascular risk factors in AD, suggest possible explanations for the overlap with vascular dementia and discuss the implications this might have on future differential diagnosis, research, and treatment strategies.



2020 ◽  
Author(s):  
Yejin Kim ◽  
Sean I Savitz ◽  
Jessica Lee ◽  
Paul E Schulz ◽  
Luyao Chen ◽  
...  

Objectives: To investigate risk factors for progression to Alzheimer's disease and related dementias (ADRD) in African Americans and non-Hispanic Caucasians in a large US cohort. Design: A matched case-control design using electronic health records (EHRs) from 2000 - 2017. Setting: Cerner EHRs database covering more than 600 Cerner client hospitals. Participants: 79,120 patients aged 65 and older (#ADRD=39,560, #non ADRD older adults=39,560) from an initial cohort of 49,826,000 patients. Measurements: We converted ICD9 or ICD10 diagnosis codes into PheWas codes to increase clinical relevance. Then we detected ADRD as having both ADRD diagnosis codes and medications. We considered PheWas codes for Alzheimer's disease, dementia with cerebral degenerations, senile dementia, and vascular dementia. We considered ADRD medications including acetylcholine and memantine. Results: Using two-step propensity score matching, we built an African American cohort of 4,429 and a 4,570-person matched Caucasian cohort that was similar in terms of onset age, observation length, sex, and known ADRD risks (diabetes, vascular disease, heart disease, head injury, and obesity). Older African Americans had a statistically significant progression from cerebrovascular risk (transient ischemic attack) to ADRD incidence (treatment effect coefficient = 0.0978, p-value <0.000) whereas the matched Caucasians did not (treatment effect coefficient = 0.403, p-value = 0.196). Conclusion: Our extensive causal analysis using a nationwide EHR discovered disease progression pathways to ADRD. The carefully matched cohorts from different racial groups showed different progression, which partly explains the racial disparities in ADRD incidence.



2014 ◽  
Vol 56 (2) ◽  
pp. 197 ◽  
Author(s):  
Leo S Morales ◽  
Yvonne N Flores ◽  
Mei Leng ◽  
Noémie Sportiche ◽  
Katia Gallegos-Carrillo ◽  
...  

 Objective. To compare cardiovascular disease (CVD) risk factors in a cohort of Mexican health workers with repre­sentative samples of US-born and Mexico-born Mexican-Americans living in the US. Materials and methods. Data were obtained from the Mexican Health Worker Cohort Study (MHWCS) in Mexico and the National Health and Nutrition Examination Survey (NHANES) IV 1999-2006 in the US. Regression analyses were used to investigate CVD risk factors. Results. In adjusted analyses, NHANES participants were more likely than MHWCS participants to have hypertension, high total cholesterol, diabetes, obesity, and abdominal obesity, and were less likely to have low HDL cholesterol and smoke. Less-educated men and women were more likely to have low HDL cholesterol, obesity, and ab­dominal obesity. Conclusions. In this binational study, men and women enrolled in the MHWCS appear to have fewer CVD risk factors than US-born and Mexico-born Mexican-American men and women living in the US.



Sign in / Sign up

Export Citation Format

Share Document