Chapter Five - Alcohol drinking exacerbates neural and behavioral pathology in the 3xTg-AD mouse model of Alzheimer's disease

This study was designed to test the hypothesis that nondependent alcohol drinking exacerbates the onset and magnitude of AD-like neural and behavioral pathology. We first evaluated the impact of voluntary 24-h, two-bottle choice home-cage alcohol drinking on the prefrontal cortex and amygdala neuroproteome in C57BL/6J mice and found a striking association between alcohol drinking and AD-like pathology. Bioinformatics identified the AD-associated proteins MAPT (Tau), amyloid beta precursor protein (APP), and presenilin-1 (PSEN-1) as the main modulators of alcohol-sensitive protein networks that included AD-related proteins that regulate energy metabolism (ATP5D, HK1, AK1, PGAM1, CKB), cytoskeletal development (BASP1, CAP1, DPYSL2 [CRMP2], ALDOA, TUBA1A, CFL2, ACTG1), cellular/oxidative stress (HSPA5, HSPA8, ENO1, ENO2), and DNA regulation (PURA, YWHAZ). To address the impact of alcohol drinking on AD, studies were conducted using 3xTg-AD mice that express human MAPT, APP, and PSEN-1 transgenes and develop AD-like brain and behavioral pathology. 3xTg-AD and wild-type mice consumed alcohol or saccharin for 4 months. Behavioral tests were administered during a 1-month alcohol-free period. Alcohol intake induced AD-like behavioral pathologies in 3xTg-AD mice including impaired spatial memory in the Morris Water Maze, diminished sensorimotor gating as measured by prepulse inhibition, and exacerbated conditioned fear. Multiplex immunoassay conducted on brain lysates showed that alco...
Source: International Review of Neurobiology - Category: Neuroscience Source Type: research

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DiscussionMR found robust evidence of a causal association between alcohol consumption and an earlier AAOS, but not alcohol intake and LOAD risk. The protective effect of alcohol dependence is potentially due to survivor bias.
Source: Alzheimer's and Dementia: The Journal of the Alzheimer's Association - Category: Geriatrics Source Type: research
What exactly is psychosis? What happens in the brain of a person with schizophrenia who is hallucinating? Schizophrenic Rachel Star Withers shares her personal hallucinations and delusions and Dr. Joseph Goldberg, who specializes in researching what goes on in the brain when someone is experiencing psychosis, joins to break down how the brain functions during psychotic episodes. Host Rachel Star Withers, a diagnosed schizophrenic, and co-host Gabe Howard delve into these intense subjects in this episode of Inside Schizophrenia.  Highlights from “Psychosis in Schizophrenia” Episode [02:13]  Rachel, do...
Source: World of Psychology - Category: Psychiatry & Psychology Authors: Tags: Brain and Behavior Disorders General Inside Schizophrenia Mental Health and Wellness Active psychosis Delusions Delusions Hallucinations Living with Schizoprenia Mental Disorder Mental Illness Psychology psychotic Psychotic Break Source Type: blogs
Funding Opportunity RFA-AA-20-006 from the NIH Guide for Grants and Contracts. The goal of this FOA is to support basic and clinical research on the influence of alcohol on susceptibility and progression of Alzheimers disease and its related dementias. Recent longitudinal studies have provided strong evidence that alcohol use disorder is associated with the high risk of all types of dementias, and frequent heavy drinking increases risk of both Alzheimers disease and vascular dementia. Even moderate alcohol consumption may be a risk factor for adverse brain outcomes and cognitive decline. Although these studies link heavy ...
Source: NIH Funding Opportunities (Notices, PA, RFA) - Category: Research Source Type: funding
This study was designed to test the hypothesis that nondependent alcohol drinking exacerbates the onset and magnitude of AD-like neural and behavioral pathology. We first evaluated the impact of voluntary 24-h, two-bottle choice home-cage alcohol drinking on the prefrontal cortex and amygdala neuroproteome in C57BL/6J mice and found a striking association between alcohol drinking and AD-like pathology. Bioinformatics identified the AD-associated proteins MAPT (Tau), amyloid beta precursor protein (APP), and presenilin-1 (PSEN-1) as the main modulators of alcohol-sensitive protein networks that included AD-related proteins ...
Source: International Review of Neurobiology - Category: Neuroscience Source Type: research
Conclusion and Relevance: Benzodiazepine use in older people from the general population is related to subsequent occurrence of cognitive dysfunction but not implicated in the pathogenesis of dementia or AD. Caution should be exercised when prescribing benzodiazepines to preserve global cognitive function. PMID: 31595772 [PubMed - as supplied by publisher]
Source: The Annals of Pharmacotherapy - Category: Drugs & Pharmacology Authors: Tags: Ann Pharmacother Source Type: research
The relationship between alcohol consumption and dementia risk in older adults is proving difficult to unpick. A recent study takes a fresh look.
Source: Health News from Medical News Today - Category: Consumer Health News Tags: Alzheimer's / Dementia Source Type: news
Mediterranean diet: The role of long-chain ω-3 fatty acids in fish; polyphenols in fruits, vegetables, cereals, coffee, tea, cacao and wine; probiotics and vitamins in prevention of stroke, age-related cognitive decline, and Alzheimer disease. Rev Neurol (Paris). 2019 Sep 11;: Authors: Román GC, Jackson RE, Gadhia R, Román AN, Reis J Abstract The mechanisms of action of the dietary components of the Mediterranean diet are reviewed in prevention of cardiovascular disease, stroke, age-associated cognitive decline and Alzheimer disease. A companion article provides a comprehensive revi...
Source: Revue Neurologique - Category: Neurology Tags: Rev Neurol (Paris) Source Type: research
This study, as well as other research on the connection between diet and sugary beverages and health risks, is observational and cannot show cause and effect. That’s a major limitation, researchers say, as it’s impossible to determine whether the association is due to a specific artificial sweetener, a type of beverage, obesity or another hidden health issue. “The cause behind these associations isn’t clear,” said Bergquist. “Other potential biological causes could be attributed to experimental evidence linking consumption of artificial sweeteners to sugar cravings, appetite stimulation ...
Source: WBZ-TV - Breaking News, Weather and Sports for Boston, Worcester and New Hampshire - Category: Consumer Health News Authors: Tags: Health News CNN Soda Source Type: news
Healthful eating and exercise might lower dementia risk in those who are genetically predisposed to developing Alzheimer ’s disease.
Source: NYT Health - Category: Consumer Health News Authors: Tags: Alzheimer ' s Disease Dementia Genetics and Heredity Alcoholic Beverages Diet and Nutrition Exercise Source Type: news
Regardless of how much genetic risk someone has, a good diet, adequate exercise, limiting alcohol and not smoking made dementia less likely
Source: Health News: CBSNews.com - Category: Consumer Health News Source Type: news
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