Metabolic syndrome, Alzheimer's disease, and Covid 19: A possible correlation

2021 ◽  
Vol 18 ◽  
Author(s):  
Carmine Finelli
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Metabolic Syndrome ◽  
Current Knowledge ◽  
Future Research ◽  
Breathing Exercises ◽  
Lung Capacity ◽  
Age Related ◽  
Key Indicators ◽  
The Impact

: Age and comorbidities are key indicators of hospital admission, serious illness, and mortality in COVID-19 patients. Patients with age-related comorbidities, such as cardiovascular disease, hypertension, diabetes, chronic kidney disease, NAFLD, obesity, and metabolic syndrome, are more likely to require hospitalization and suffer severe sickness of COVID-19. Patients with Alzheimer’s disease and risk factors associated with dementia may also be more vulnerable to serious COVID-19 infection. Peripheral inflammation, including in patients who recover from illness, may promote the course of neurodegenerative disorders through neuroinflammatory pathways The aim of this study is to examine the impact of COVID-19 on immunity in patients with age-related diseases such as metabolic syndrome and Alzheimer’s disease and also to hypothesize the possible correlation between metabolic syndrome, Alzheimer’s disease, and COVID-19. Identifying the mechanisms that explain the complicated interaction between metabolic syndrome, Alzheimer’s disease, COVID-19, inflammation, and immunity could be crucial to designing effective pharmacological therapies and procedures. This study adds to our basic information about the new coronavirus by synthesizing current knowledge of these linkages. To reduce inflammation and enhance immunity, patients should acquire good lifestyle practices. Walking, breathing exercises, and a nutritious diet all help in improving lung capacity and immunity. Future research into novel therapeutics for patients with metabolic syndrome, Alzheimer’s disease, and COVID-19 inflammation and immunology is encouraged by this paper.

scholarly journals Relationship between Wine Consumption, Diet and Microbiome Modulation in Alzheimer’s Disease

Nutrients ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 3082
Author(s):  
M. Victoria Moreno-Arribas ◽  
Begoña Bartolomé ◽  
José L. Peñalvo ◽  
Patricia Pérez-Matute ◽  
Maria José Motilva
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Gut Microbiota ◽  
Neurodegenerative Disorder ◽  
Current Knowledge ◽  
Intestinal Microbiome ◽  
Dietary Polyphenols ◽  
Age Related ◽  
Wine Polyphenols ◽  
The Impact

Alzheimer’s disease (AD) is a progressive neurodegenerative disorder leading to the most common form of dementia in elderly people. Modifiable dietary and lifestyle factors could either accelerate or ameliorate the aging process and the risk of developing AD and other age-related morbidities. Emerging evidence also reports a potential link between oral and gut microbiota alterations and AD. Dietary polyphenols, in particular wine polyphenols, are a major diver of oral and gut microbiota composition and function. Consequently, wine polyphenols health effects, mediated as a function of the individual’s oral and gut microbiome are considered one of the recent greatest challenges in the field of neurodegenerative diseases as a promising strategy to prevent or slow down AD progression. This review highlights current knowledge on the link of oral and intestinal microbiome and the interaction between wine polyphenols and microbiota in the context of AD. Furthermore, the extent to which mechanisms bacteria and polyphenols and its microbial metabolites exert their action on communication pathways between the brain and the microbiota, as well as the impact of the molecular mediators to these interactions on AD patients, are described.

scholarly journals Factors associated with brain ageing - a systematic review

BMC Neurology ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Jo Wrigglesworth ◽  
Phillip Ward ◽  
Ian H. Harding ◽  
Dinuli Nilaweera ◽  
Zimu Wu ◽  
...  
Keyword(s):  
Systematic Review ◽  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Community Dwelling ◽  
Systematic Search ◽  
Current Evidence ◽  
Chronological Age ◽  
Future Research ◽  
Age Related ◽  
Brain Ageing

Abstract Background Brain age is a biomarker that predicts chronological age using neuroimaging features. Deviations of this predicted age from chronological age is considered a sign of age-related brain changes, or commonly referred to as brain ageing. The aim of this systematic review is to identify and synthesize the evidence for an association between lifestyle, health factors and diseases in adult populations, with brain ageing. Methods This systematic review was undertaken in accordance with the PRISMA guidelines. A systematic search of Embase and Medline was conducted to identify relevant articles using search terms relating to the prediction of age from neuroimaging data or brain ageing. The tables of two recent review papers on brain ageing were also examined to identify additional articles. Studies were limited to adult humans (aged 18 years and above), from clinical or general populations. Exposures and study design of all types were also considered eligible. Results A systematic search identified 52 studies, which examined brain ageing in clinical and community dwelling adults (mean age between 21 to 78 years, ~ 37% were female). Most research came from studies of individuals diagnosed with schizophrenia or Alzheimer’s disease, or healthy populations that were assessed cognitively. From these studies, psychiatric and neurologic diseases were most commonly associated with accelerated brain ageing, though not all studies drew the same conclusions. Evidence for all other exposures is nascent, and relatively inconsistent. Heterogenous methodologies, or methods of outcome ascertainment, were partly accountable. Conclusion This systematic review summarised the current evidence for an association between genetic, lifestyle, health, or diseases and brain ageing. Overall there is good evidence to suggest schizophrenia and Alzheimer’s disease are associated with accelerated brain ageing. Evidence for all other exposures was mixed or limited. This was mostly due to a lack of independent replication, and inconsistency across studies that were primarily cross sectional in nature. Future research efforts should focus on replicating current findings, using prospective datasets. Trial registration A copy of the review protocol can be accessed through PROSPERO, registration number CRD42020142817.

scholarly journals The Impact of Systemic Inflammation on Alzheimer’s Disease Pathology

2022 ◽  
Vol 12 ◽  
Author(s):  
Junhua Xie ◽  
Lien Van Hoecke ◽  
Roosmarijn E. Vandenbroucke
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Rational Design ◽  
Neurodegenerative Disorder ◽  
Peripheral Inflammation ◽  
Comprehensive Overview ◽  
Age Related ◽  
Symptomatic Medication ◽  
Inflammatory Processes ◽  
The Impact

Alzheimer’s disease (AD) is a devastating age-related neurodegenerative disorder with an alarming increasing prevalence. Except for the recently FDA-approved Aducanumab of which the therapeutic effect is not yet conclusively proven, only symptomatic medication that is effective for some AD patients is available. In order to be able to design more rational and effective treatments, our understanding of the mechanisms behind the pathogenesis and progression of AD urgently needs to be improved. Over the last years, it became increasingly clear that peripheral inflammation is one of the detrimental factors that can contribute to the disease. Here, we discuss the current understanding of how systemic and intestinal (referred to as the gut-brain axis) inflammatory processes may affect brain pathology, with a specific focus on AD. Moreover, we give a comprehensive overview of the different preclinical as well as clinical studies that link peripheral Inflammation to AD initiation and progression. Altogether, this review broadens our understanding of the mechanisms behind AD pathology and may help in the rational design of further research aiming to identify novel therapeutic targets.

scholarly journals The Apolipoprotein E Antagonistic Pleiotropy Hypothesis: Review and Recommendations

2011 ◽  
Vol 2011 ◽  
pp. 1-12 ◽  
Author(s):  
Elizabeth R. Tuminello ◽  
S. Duke Han
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Cognitive Decline ◽  
Apolipoprotein E ◽  
Evolutionary Biology ◽  
Future Research ◽  
Antagonistic Pleiotropy ◽  
Life Stages ◽  
New Research ◽  
The Impact

Research on apolipoprotein E (APOE) has consistently revealed a relationship between the gene'sε4 allele and risk for development of Alzheimer's disease (AD). However, research with younger populations ofε4 carriers has suggested that the APOEε4 allele may in fact be beneficial in earlier ages and may only confer risk of cognitive decline later in life. Accordingly, we and others have proposed that APOE may represent an example of antagonistic pleiotropy. Antagonistic pleiotropy is an evolutionary biology concept that proposes certain genes or alleles that may differentially impact fitness during different life stages. We critically review this hypothesis in light of new research of the impact of APOE on cognition and neural integrity across the lifespan. We provide recommendations for the revision of the antagonistic pleiotropy hypothesis of APOE and suggest important avenues for future research in this area.

scholarly journals THE INTERRELATIONSHIP BETWEEN INSULIN-LIKE GROWTH FACTOR 1, APOLIPOPROTEIN E Ε4, LIFESTYLE FACTORS, AND THE AGING BODY AND BRAIN

2020 ◽  
pp. 1-9
Author(s):  
S.A. Galle ◽  
I.K. Geraedts ◽  
J.B. Deijen ◽  
M.V. Milders ◽  
M.L. Drent
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Growth Factor ◽  
Apolipoprotein E ◽  
Cognitive Functioning ◽  
Brain Function ◽  
Healthy Aging ◽  
Insulin Like Growth Factor ◽  
Age Related ◽  
The Impact

Aging is associated with a decrease in body and brain function and with a decline in insulin-like growth factor 1 levels. The observed associations between alterations in insulin-like growth factor 1 levels and cognitive functioning and Mild Cognitive Impairment suggest that altered insulin-like growth factor 1 signaling may accompany Alzheimer’s disease or is involved in the pathogenesis of the disease. Recent animal research has suggested a possible association between insulin-like growth factor 1 levels and the Apolipoprotein E ε4 allele, a genetic predisposition to Alzheimer’s disease. It is therefore hypothesized that a reduction in insulin-like growth factor 1 signaling may moderate the vulnerability to Alzheimer’s disease of human Apolipoprotein E ε4 carriers. We address the impact of age-related decline of insulin-like growth factor 1 levels on physical and brain function in healthy aging and Alzheimer’s disease and discuss the links between insulin-like growth factor 1 and the Apolipoprotein E ε4 polymorphism. Furthermore, we discuss lifestyle interventions that may increase insulin-like growth factor 1 serum levels, including physical activity and adherence to a protein rich diet and the possible benefits to the physical fitness and cognitive functioning of the aging population.

Role of TREM2 in Alzheimer's Disease and its Consequences on β- Amyloid, Tau and Neurofibrillary Tangles

2020 ◽  
Vol 16 (13) ◽  
pp. 1216-1229 ◽  
Author(s):  
Anurag K. Singh ◽  
Gaurav Mishra ◽  
Anand Maurya ◽  
Rajendra Awasthi ◽  
Komal Kumari ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Neurodegenerative Disorder ◽  
Tau Pathology ◽  
Functional Roles ◽  
Age Related ◽  
Β Amyloid ◽  
The Impact ◽  
Neuronal Stress

: Alzheimer's Disease (AD) is age-related neurodegenerative disorder recognized by a steadily gradual cognitive decline that has devastating personal and socioeconomic implications. Recently, some genetic factors for AD have been identified which attracted wide attention of researchers in different areas of AD biology and possible new therapeutic targets. Alternative forms of triggering receptor expressed on myeloid cells 2 (TREM2) genes are examples of such risk factors, which contribute higher risk for developing AD. Comprehending TREM2 function pledge to provide salient insight into how neuroinflammation contributes to AD pathology. The dearth of microglial TREM2 shepherd to augmented tau pathology is couple with frequent enhancement of activated neuronal stress kinases. The involvement of TREM2 in the regulation of tau-associated innate immune response of the CNS has clearly demonstrated through these findings. However, whether decrease level of TREM2 assists pathology of tau through changed clearance and pathological escalation of tau or through direct contact between microglia and neuron and any alternative possible mechanisms need to examine. This review briefly summarizes distinct functional roles of TREM2 in AD pathology and highlights the TREM2 gene regulation. We have also addressed the impact of TREM2 on β-amyloid plaques and tau pathology in Alzheimer’s disease.

scholarly journals White Matter Changes in Patients with Alzheimer’s Disease and Associated Factors

2019 ◽  
Vol 8 (2) ◽  
pp. 167 ◽  
Author(s):  
Yi-Hui Kao ◽  
Mei-Chuan Chou ◽  
Chun-Hung Chen ◽  
Yuan-Han Yang
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
White Matter ◽  
Rating Scale ◽  
Beta Amyloid ◽  
Future Research ◽  
White Matter Changes ◽  
Age Related ◽  
And Gender ◽  
Fazekas Scale

Alzheimer’s disease (AD) is traditionally thought of as a neurodegenerative disease. Recent evidence shows that beta amyloid-independent vascular changes and beta amyloid-dependent neuronal dysfunction both equally influence the disease, leading to loss of structural and functional connectivity. White matter changes (WMCs) in the brain are commonly observed in dementia patients. The effect of vascular factors on WMCs and the relationship between WMCs and severity of AD in patients remain to be clarified. We recruited 501 clinically diagnosed probable AD patients with a series of comprehensive neuropsychological tests and brain imaging. The WMCs in cerebral CT or MRI were rated using both the modified Fazekas scale and the combined CT-MRI age related WMC (ARWMC) rating scale. Periventricular WMCs were observed in 79.4% of the patients and deep WMCs were also seen in 48.7% of the patients. WMC scores were significantly higher in the advanced dementia stage in periventricular WMCs (p = 0.001) and total ARWMCs (p < 0.001). Age and disease severity were both independently associated with WMCs score, particularly in the total, frontal and parieto-occipital areas. Vascular factors including hypertension, diabetes mellitus, and gender were not significantly associated with WMCs. In conclusion, both age and severity of dementia were significantly associated with WMCs in AD patients. These associations highlight future research targets.

scholarly journals 401 - The Costs of Agitation: A Literature Review

2020 ◽  
Vol 32 (S1) ◽  
pp. 117-117
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Literature Review ◽  
Service Use ◽  
Neuropsychiatric Symptoms ◽  
Unmet Need ◽  
Cochrane Library ◽  
Future Research ◽  
The Cost ◽  
The Impact

PRESENTING AUTHOR:Mary Michael, Vice President, Patient Advocacy and Stakeholder Management, Otsuka America Pharmaceutical, Inc.OBJECTIVE:To evaluate the extent to which the cost of both treated and untreated agitation in Alzheimer’s disease has been studied in order to inform future research and development of predictive models of the cost of untreated agitation in Alzheimer’s disease.BACKGROUND:There is inadequate understanding of the costs of agitation in Alzheimer’s disease in the scientific and academic literature. Agitation in Alzheimer’s disease contributes to negative social and financial outcomes for people with the condition, their care partners, and health systems. When left untreated, the impact of these outcomes is exacerbated, yet the scale of this impact is unknown. This gap in the literature both reflects and perpetuates the broader under-recognition of agitation as a serious unmet need in the Alzheimer’s community. Conversely, a better understanding of the costs can help elevate agitation within the global Alzheimer’s dialogue.METHODS:We used MEDLINE, PubMed, PsychINFO the Cochrane Library and Google Scholar databases to identify relevant articles published between 2000 until May 2020. We also reviewed reliable literature published outside of these databases. Keywords utilized in the search include agitation in Alzheimer’s, neuropsychiatric symptoms of Alzheimer’s, cost of informal and formal care, Medicare and Medicaid costs, economic costs associated to delirium, among others. Only articles in English were included. Inclusion and exclusion criteria were determined by study design, data source and population studied, number of cases included in analysis, source of health service use or cost data, statistical methods and agitation in Alzheimer’s attributable and/or incremental costs.RESULTS:Results will describe the breadth and depth to which costs of treated and untreated agitation in Alzheimer’s have been examined, indicating data and statistical methodology used.CONCLUSIONS:This literature review serves as the basis for understanding global costs of agitation in Alzheimer’s disease. From our analysis, we recommend that further cost modeling activities be conducted. We also urge the greater community to use these findings to elevate agitation to the top of the Alzheimer’s agenda.

scholarly journals Fiber Tracts Anomalies in APPxPS1 Transgenic Mice Modeling Alzheimer's Disease

2011 ◽  
Vol 2011 ◽  
pp. 1-12 ◽  
Author(s):  
H. Chen ◽  
S. Epelbaum ◽  
B. Delatour
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Transgenic Mice ◽  
Clinical Symptoms ◽  
Anterior Commissure ◽  
Fiber Tract ◽  
Fiber Tracts ◽  
Age Related ◽  
The Impact ◽  
The Brain

Amyloid beta (A) peptides are known to accumulate in the brain of patients with Alzheimer's disease (AD). However, the link between brain amyloidosis and clinical symptoms has not been elucidated and could be mediated by secondary neuropathological alterations such as fiber tracts anomalies. In the present study, we have investigated the impact of A overproduction in APPxPS1 transgenic mice on the integrity of forebrain axonal bundles (corpus callosum and anterior commissure). We found evidence of fiber tract volume reductions in APPxPS1 mice that were associated with an accelerated age-related loss of axonal neurofilaments and a myelin breakdown. The severity of these defects was neither correlated with the density of amyloid plaques nor associated with cell neurodegeneration. Our data suggest that commissural fiber tract alterations are present in A-overproducing transgenic mice and that intracellular A accumulation preceding extracellular deposits may act as a trigger of such morphological anomalies.

Ginkgo biloba extract EGb 761® in the context of current developments in the diagnosis and treatment of age-related cognitive decline and Alzheimer's disease: a research perspective

2012 ◽  
Vol 24 (S1) ◽  
pp. S46-S50 ◽  
Author(s):  
Nicola T. Lautenschlager ◽  
Ralf Ihl ◽  
Walter E. Müller
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Cognitive Impairment ◽  
Cognitive Decline ◽  
Ginkgo Biloba ◽  
Future Research ◽  
Egb 761 ◽  
Age Related ◽  
Age Related Cognitive Decline ◽  
Ageing Brain

ABSTRACTIn June 2011 a two-day expert meeting “The Ageing Brain” took place in Amsterdam, The Netherlands. The main aim was to discuss the available preclinical and clinical data on Ginkgo biloba special extract EGb 761® in the context of current developments in the diagnosis and treatment of age-related cognitive decline and Alzheimer's disease. 19 dementia experts covering the disciplines bio- and neurochemistry, gerontology, neurology, pharmacology, and psychiatry from Australia, Asia, Europe and North America reviewed available preclinical and clinical data for EGb 761® and identified core topics for future research. Based on a wide range of preclinical effects demonstrated for Ginkgo biloba, EGb 761® can be conceptualized as a multi-target compound with activity on distinct pathophysiological pathways in Alzheimer's disease (AD) and age-related cognitive decline. While symptomatic efficacy in dementia and mild cognitive impairment (MCI) has been demonstrated, interpretation of data from dementia prevention trials is complicated by important methodological issues. Bridging pre-clinical research and clinical research as well as deciding on suitable study designs for future trials with EGb 761® remain important questions. The participants of the “Ageing Brain” meeting on Ginkgo biloba special extract EGb 761® concluded that there is plenty of promising data, both pre-clinical and clinical, to consider future research with the compound targeting cognitive impairment in old age as a worthwhile activity.

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