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Alzheimers and obesity

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https://www.readbyqxmd.com/read/28643167/microbiome-probiotics-and-neurodegenerative-diseases-deciphering-the-gut-brain-axis
#1
REVIEW
Susan Westfall, Nikita Lomis, Imen Kahouli, Si Yuan Dia, Surya Pratap Singh, Satya Prakash
The gut microbiota is essential to health and has recently become a target for live bacterial cell biotherapies for various chronic diseases including metabolic syndrome, diabetes, obesity and neurodegenerative disease. Probiotic biotherapies are known to create a healthy gut environment by balancing bacterial populations and promoting their favorable metabolic action. The microbiota and its respective metabolites communicate to the host through a series of biochemical and functional links thereby affecting host homeostasis and health...
June 22, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28615163/understanding-mechanisms-and-seeking-cures-for-alzheimer-s-disease-why-we-must-be-extraordinarily-diverse
#2
Madhav Thambisetty
After more than a century since Dr. Alois Alzheimer first described the pathological hallmarks accompanying the defining clinical features of the disease, we have yet to deliver any meaningful disease-modifying treatments to our patients. In this article, we present a rationale for the need to be "extraordinarily diverse" in seeking effective ways to treat or prevent this devastating disease. Our approach is based on applying a systems-biology perspective at the population level, using a diverse array of 'OMICS' methodologies to identify molecular mechanisms associated with well-established AD risk factors including systemic inflammation, obesity and insulin resistance...
June 14, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/28612048/obesity-accelerates-alzheimer-related-pathology-in-apoe4-but-not-apoe3-mice
#3
V Alexandra Moser, Christian J Pike
Alzheimer's disease (AD) risk is modified by both genetic and environmental risk factors, which are believed to interact to cooperatively modify pathogenesis. Although numerous genetic and environmental risk factors for AD have been identified, relatively little is known about potential gene-environment interactions in regulating disease risk. The strongest genetic risk factor for late-onset AD is the ε4 allele of apolipoprotein E (APOE4). An important modifiable risk factor for AD is obesity, which has been shown to increase AD risk in humans and accelerate development of AD-related pathology in rodent models...
May 2017: ENeuro
https://www.readbyqxmd.com/read/28611655/obesity-and-co-morbid-conditions-are-associated-with-specific-neuropsychiatric-symptoms-in-mild-cognitive-impairment
#4
Ashley H Sanderlin, David Todem, Andrea C Bozoki
Background: Neuropsychiatric symptoms (NPSs) in MCI, and midlife obesity increase the likelihood of developing Alzheimer's disease. It is unknown whether obesity or related health conditions modify the risk of NPS or severity of cognitive impairment in MCI. Methods: One hundred and thirteen subjects with MCI were assessed near the time of MCI diagnosis. The sample was divided by BMI and related disorders, type-2 diabetes (T2D) and obstructive sleep apnea (OSA) to measure the relationship of these groups with NPS and severity of MCI...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28583368/the-impact-of-obesity-on-neurodegenerative-diseases
#5
REVIEW
Janaína Niero Mazon, Aline Haas de Mello, Gabriela Kozuchovski Ferreira, Gislaine Tezza Rezin
Neurodegenerative diseases are a growing health concern. The increasing incidences of these disorders have a great impact on the patients' quality of life. Although the mechanisms of neurodegenerative diseases are still far from being clarified, several studies look for new discoveries about their pathophysiology and prevention. Furthermore, evidence has shown a strong correlation between obesity and the development of Alzheimer's disease (AD) and Parkinson's disease (PD). Metabolic changes caused by overweight are related to damage to the central nervous system (CNS), which can lead to neural death, either by apoptosis or cell necrosis, as well as alter the synaptic plasticity of the neuron...
June 2, 2017: Life Sciences
https://www.readbyqxmd.com/read/28582856/lipidomic-profiles-in-diabetes-and%C3%A2-dementia
#6
Kevin Huynh, Ralph N Martins, Peter J Meikle
Lipids are a diverse class of hydrophobic and amphiphilic molecules which make up the bulk of most biological systems and are essential for human life. The role of lipids in health and disease has been recognized for many decades, as evidenced by the early identification of cholesterol as an important risk factor of heart disease and the development and introduction of statins as a one of the most successful therapeutic interventions to date. While several studies have demonstrated an increased risk of dementia, including Alzheimer's disease (AD), in those with diabetes mellitus, the nature of this risk is not well understood...
May 30, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28582855/diabetes-and-alzheimer-s-disease-can-tea-phytochemicals-play-a-role-in-prevention
#7
Fernando W M A D Binosha, Geeshani Somaratne, Shehan Williams, Kathryn G Goozee, Harjinder Singh, Ralph N Martins
Dementia and diabetes mellitus are prevalent disorders in the elderly population. While recognized as two distinct diseases, diabetes has more recently recognized as a significant contributor to risk for developing dementia, and some studies make reference to type 3 diabetes, a condition resulting from insulin resistance in the brain. Alzheimer's disease, the most common form of dementia, and diabetes, interestingly, share underlying pathological processes, commonality in risk factors, and, importantly, pathways for intervention...
May 30, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28577973/membrane-lipid-therapy-a-historical-perspective-of-membrane-targeted-therapies-from-lipid-bilayer-structure-to-the-pathophysiological-regulation-of-cells
#8
EDITORIAL
Pablo V Escribá
Our current understanding of membrane lipid composition, structure and functions has led to the investigation of their role in cell signaling, both in healthy and pathological cells. As a consequence, therapies based on the regulation of membrane lipid composition and structure have been recently developed. This novel field, known as Membrane Lipid Therapy, is growing and evolving rapidly, providing treatments that are now in use or that are being studied for their application to oncological disorders, Alzheimer's disease, spinal cord injury, stroke, diabetes, obesity, and neuropathic pain...
June 1, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28575011/age-dependent-regulation-of-obesity-and-alzheimer-related-outcomes-by-hormone-therapy-in-female-3xtg-ad-mice
#9
Amy Christensen, Christian J Pike
Depletion of ovarian hormones at menopause is associated with increased Alzheimer's disease (AD) risk. Hormone loss also increases central adiposity, which promotes AD development. One strategy to improve health outcomes in postmenopausal women is estrogen-based hormone therapy (HT), though its efficacy is controversial. The window of opportunity hypothesis posits that HT is beneficial only if initiated near the onset of menopause. Here, we tested this hypothesis by assessing the efficacy of HT against diet-induced obesity and AD-related pathology in female 3xTg-AD mice at early versus late middle-age...
2017: PloS One
https://www.readbyqxmd.com/read/28550257/increasing-body-mass-index-at-midlife-is-associated-with-increased-cortical-thinning-in-alzheimer-s-disease-vulnerable-regions
#10
Marnie E Shaw, Walter P Abhayaratna, Kaarin J Anstey, Nicolas Cherbuin
Higher body mass index (BMI) at midlife is associated with greater decreases in cognitive function at older age as well as increased Alzheimer's disease (AD) risk, compared to those with normal BMI. Here, we tested whether BMI at midlife was associated with cortical thinning in brain regions known to be affected in early AD. We examined a large sample (n = 404) of midlife individuals (44-49 years) from the PATH population-based study. Individuals were scanned with magnetic resonance imaging (1.5T) on up to three occasions over eight years...
May 26, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28550249/avn-492-a-novel-highly-selective-5-ht6r-antagonist-preclinical-evaluation
#11
Alexandre V Ivachtchenko, Ilya Okun, Vladimir Aladinskiy, Yan Ivanenkov, Angela Koryakova, Ruben Karapetyan, Oleg Mitkin, Ramiz Salimov, Andrey Ivashchenko
Discovery of 5-HT6 receptor subtype and its exclusive localization within the central nervous system led to extensive investigations of its role in Alzheimer's disease, schizophrenia, and obesity. In the present study, we present preclinical evaluation of a novel highly-potent and highly-selective 5-HT6R antagonist, AVN-492. The affinity of AVN-492 to bind to 5-HT6R (Ki = 91 pM) was more than three orders of magnitude higher than that to bind to the only other target, 5-HT2BR, (Ki = 170 nM). Thus, the compound displayed great 5-HT6R selectivity against all other serotonin receptor subtypes, and is extremely specific against any other receptors such as adrenergic, GABAergic, dopaminergic, histaminergic, etc...
May 25, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28544198/jaboticaba-berry-peel-intake-prevents-insulin-resistance-induced-tau-phosphorylation-in-mice
#12
Ângela G Batista, Edilene S Soares, Monique C P Mendonça, Juliana K da Silva, Ana Paula Dionísio, Cesar R Sartori, Maria Alice da Cruz-Höfling, Mário R Maróstica Júnior
The hyperphosphorylation of tau in the hippocampus can be caused by central and peripheral insulin resistance and these alterations are related to the development of tauopathies, such as Alzheimer's disease. In this study, we used a high-fat diet to induce obesity and insulin resistance in adult Swiss mice and checked whether supplementation with Myrciaria jaboticaba berry peel for 10 weeks could improve insulin sensitivity, learning/memory performance and prevent tau phosphorylation in the hippocampus. Furthermore, adipocytokines, inflammatory markers, and oxidative stress were assessed...
May 19, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28531131/the-role-of-interleukin-18-oxidative-stress-and-metabolic-syndrome-in-alzheimer-s-disease
#13
REVIEW
Johanna O Ojala, Elina M Sutinen
The role of interleukins (ILs) and oxidative stress (OS) in precipitating neurodegenerative diseases including sporadic Alzheimer's disease (AD), requires further clarification. In addition to neuropathological hallmarks-extracellular neuritic amyloid-β (Aβ) plaques, neurofibrillary tangles (NFT) containing hyperphosphorylated tau and neuronal loss-chronic inflammation, as well as oxidative and excitotoxic damage, are present in the AD brain. The pathological sequelae and the interaction of these events during the course of AD need further investigation...
May 21, 2017: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/28527214/associations-of-spatial-disparities-of-alzheimer-s-disease-mortality-rates-with-soil-selenium-and-sulfur-concentrations-and-four-common-risk-factors-in-the-united-states
#14
Hongbing Sun
BACKGROUND: Associations between environmental factors and spatial disparity of mortality rates of Alzheimer's disease (AD) in the US are not well understood. OBJECTIVE: To find associations between 41 trace elements, four common risk factors, and AD mortality rates in the48 contiguous states. METHODS: Isopleth maps of AD mortality rates of the 48 states and associated factors were examined. Correlations between state average AD mortality rates and concentrations of 41 soil elements, wine consumption, percentage of current smokers, obesity, and diagnosed diabetes of the 48 states between 1999 and 2014 were analyzed...
2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28508317/trpc-channels-and-brain-inflammation
#15
Yoshito Mizoguchi, Akira Monji
Nonresolving low-grade inflammation is supposed to underly the basis of chronic disorders including cardiovascular diseases, cancer, diabetes, obesity, and psychiatric disorders such as depression and Alzheimer's diseases. There is increasing evidence suggesting that pathophysiology of psychiatric disorders is related to the inflammatory responses mediated by microglial cells. Elevation of intracellular Ca(2+) is important for the activation of microglial cell functions, including proliferation, release of NO, cytokines, and BDNF...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28482212/the-frequency-and-influence-of-dementia-risk-factors-in-prodromal-alzheimer-s-disease
#16
Isabelle Bos, Stephanie J Vos, Lutz Frölich, Johannes Kornhuber, Jens Wiltfang, Wolfgang Maier, Oliver Peters, Eckhart Rüther, Sebastiaan Engelborghs, Ellis Niemantsverdriet, Ellen Elisa De Roeck, Magda Tsolaki, Yvonne Freund-Levi, Peter Johannsen, Rik Vandenberghe, Alberto Lleó, Daniel Alcolea, Giovanni B Frisoni, Samantha Galluzzi, Flavio Nobili, Silvia Morbelli, Alexander Drzezga, Mira Didic, Bart N van Berckel, Eric Salmon, Christine Bastin, Solene Dauby, Isabel Santana, Inês Baldeiras, Alexandre de Mendonça, Dina Silva, Anders Wallin, Arto Nordlund, Preciosa M Coloma, Angelika Wientzek, Myriam Alexander, Gerald P Novak, Mark Forrest Gordon, Åsa K Wallin, Harald Hampel, Hilkka Soininen, Sanna-Kaisa Herukka, Philip Scheltens, Frans R Verhey, Pieter Jelle Visser
We investigated whether dementia risk factors were associated with prodromal Alzheimer's disease (AD) according to the International Working Group-2 and National Institute of Aging-Alzheimer's Association criteria, and with cognitive decline. A total of 1394 subjects with mild cognitive impairment from 14 different studies were classified according to these research criteria, based on cognitive performance and biomarkers. We compared the frequency of 10 risk factors between the subgroups, and used Cox-regression to examine the effect of risk factors on cognitive decline...
April 8, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28476630/membrane-lipid-therapy-a-historical-perspective-of-membrane-targeted-therapies-from-lipid-bilayer-structure-to-the-pathophysiological-regulation-of-cells
#17
REVIEW
Pablo V Escribá
Our current understanding of membrane lipid composition, structure and functions has led to the investigation of their role in cell signaling, both in healthy and pathological cells. As a consequence, therapies based on the regulation of membrane lipid composition and structure have been recently developed. This novel field, known as membrane lipid therapy, is growing and evolving rapidly, providing treatments that are now in use or that are being studied for their application to oncological disorders, Alzheimer's disease, spinal cord injury, stroke, diabetes, obesity, and neuropathic pain...
May 2, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28462694/obesity-and-metabolic-syndrome-affects-the-cholinergic-transmission-and-cognitive-functions
#18
Martinelli Ilenia, Tomassoni Daniele, Moruzzi Michele, Traini Enea, Seyed Khosrow Tayebati
Worldwide, at least 2.8 million people die each year as a result of being overweight or obese, that causes about 35.8 million (2.3%) of global Disability-Adjusted Life Year (DALYs). Obesity leads to metabolic syndrome, a pathological condition characterized by adverse metabolic effects on blood pressure, cholesterol, triglycerides and insulin resistance. Population-based investigations have suggested that obesity and metabolic syndrome may be associated with poorer cognitive performance and could be considered a possible risk factor for vascular Dementia and Alzheimer's Disease...
April 28, 2017: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/28435972/-glp-1-gip-gcg-receptor-triagonist-improves-the-cognitive-behaviors-in-triple-transgenic-mice-of-alzheimer-s-disease
#19
Juan-Juan Jiao, Christian Hölscher, Tian Li, Xue-Fan Dong, Xue-Song Qu, Yue Cao, Mei-Na Wu, Zhao-Jun Wang, Jin-Shun Qi
Alzheimer's disease (AD) is a progressively neurodegenerative disorder, which seriously affects human health but is still irreversible up to now. Recent studies indicate that type 2 diabetes mellitus (T2DM) is an important risk factor for AD, and the drugs used for treatment of T2DM have shown some neuroprotective effects in the treatment of AD. Glucagon-like peptide-1 (GLP-1)/ glucose-dependent insulinotropic polypeptide (GIP)/glucagon (Gcg) receptor Triagonist is a new monomeric polypeptide equally activating the GLP-1/GIP/Gcg receptors, which is built on the basis of GLP-1/Gcg receptor coagonist core sequence, and incorporated with partial amino acids of GIP...
April 25, 2017: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/28425868/pomegranate-as-a-possible-treatment-in-reducing-risk-of-developing-wound-healing-obesity-neurodegenerative-disorders-and-diabetes-mellitus
#20
Manaf AlMatar, Md Rashedul Islam, Othman Albari, Işıl Var, Fatih Köksal
Four distinguished although overlying stages make up the methodical procedure of wound healing, which are hemostasis, inflammation, proliferation and remodelling. Multiple sclerosis (MS) comprises a persistent inflammatory infection of the central nervous system, and is related to demyelination, neurodegeneration, as well as susceptibility to oxidative pressure. Obesity signifies a swiftly developing danger to the wellbeing of populations in a rising number of nations. Usually called diabetes mellitus (DM) by medical practitioners, diabetes details a collection of metabolic diseases within which the individual has raised blood glucose, either due to an insufficiency of insulin generation, or the lack of suitable response by the body to insulin, or both...
April 19, 2017: Mini Reviews in Medicinal Chemistry
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