Alcohol consumption and risk of dementia: A dose-response meta-analysis PMC

link between alcoholism and dementia

In general, our confidence in our findings is strengthened by several factors. To our knowledge, this is the largest study of its kind to look at the relationship between AD progression and alcohol. The frequent and thorough follow-up allowed for there to be enough power to detect and estimate the effects of alcohol and control for confounders.

Moderate drinking and AD

  • They also underwent “clinical, neuropsychological, and biological assessments” when they enrolled in the study.
  • At present, there is no cure for AD and current treatments only provide a temporary reduction of symptoms.
  • Like the total alcohol variable, we used the maximum weekly consumption of these different beverages over the first two visits.
  • Alcohol-related dementia and Wernicke-Korsakoff syndrome may develop due to regular excessive alcohol consumption over many years.
  • The two terms “alcoholism” and “aging” retrieved about 1,350 papers; adding phrases (for example, “postmortem” or “magnetic resonance”) limited the number to fewer than 100 papers.

Additional adjustment for occupational type or smoking did not change the results either (data not shown). Compared to non-drinking AD patients, AD patients with mild-moderate drinking showed a non-significantly positive effect, while those with heavy drinking showed a faster cognitive decline. First, different definitions of alcohol consumption may lead to heterogeneity. Second, we cannot exclude the potential influences of including former drinkers, who may quit drinking due to underlying diseases and have a high risk of dementia, in the reference group due to data restrictions. Another limitation is considerations of the inconsistence of the adjusted confounders in included studies; we cannot exclude the potentially spurious inverse association caused by some confounders.

Coping With Long-Term Effects of Alcoholic Dementia

These studies don’t separate out the lifetime non-drinkers from those who have quit drinking. Combining both into the same group makes the non-drinking group seem like they had a higher risk of dementia than if lifetime non-drinkers were considered separately. Evidence shows that excessive alcohol consumption increases a person’s risk of developing dementia. ARD is a type of cognitive impairment that occurs as a result of heavy alcohol consumption over a long period.

link between alcoholism and dementia

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This literature review indicates that chronic alcohol misuse accelerates brain aging and contributes to cognitive impairments, including those in the mnemonic domain also affected in Alzheimer’s disease. The diagnosis of an alcohol problem can alcohol cause dementia is best made by review of medical histories and interviews with patients. Preventive Services Task Force, current estimates are that fewer than 50% of people who visit primary care providers for alcohol-related issues are asked about the problem.

Alcoholic Dementia vs. Wernicke-Korsakoff Syndrome

link between alcoholism and dementia

Each combined multiple research studies to reach a consensus on alcohol consumption and the development of dementia. Several high-profile reviews looked at the research into alcohol and dementia risk. They all found that people who drank heavily or engaged in binge drinking were more likely to develop dementia than those who drank only moderate amounts. Furthermore, the majority of the observational study populations are not representative of heavy alcohol users or people with AUDs, as these individuals are often excluded by design 20. Heavy alcohol users and people with AUDs were excluded from the sampling frames 60), were more likely to drop out 20, and were more likely to die at younger ages 74, 76–78. To address these limitations, future epidemiological studies on the role of heavy alcohol use and AUDs on dementia onset could be conducted in a hospital setting where individuals with such characteristics are over-represented.

Alcohol Effects on the Central Nervous System

  • The researchers then used a statistical approach that mimicked a randomized clinical trial.
  • The Lancet review by Livingston et al. 1 showed that the risks of heavy drinking and AUDs for dementia have been underestimated.
  • Demographic information (age, gender, ethnicity and years of education) and mMMSE score were obtained at the initial visit 19.
  • Inclusion criteria included a modified Mini-Mental State Examination (mMMSE) score of 30 or more, which equates to a Folstein MMSE score of approximately 16 or more 20, 21.
  • Regardless of type of alcohol consumed, the risk of dementia increased linearly, starting around 14 units/week (appendix figure S5).

In a 2023 study, researchers found that sensory processing difficulties had links to alcohol use in autistic adults. Studies between 2009 and 2019 found that rates of lifetime AUD in autistic people may vary from 2.1% to 71%. For the study, which was published in the journal Alzheimer’s & Dementia in October, researchers analyzed three years of electronic records of nearly 1 million Americans with type 2 diabetes. The researchers then used a statistical approach that mimicked a randomized clinical trial.

But there is no way to predict whether a person who consumes large amounts of alcohol will develop alcoholic dementia or not. This article describes the causes of alcoholic dementia, symptoms, diagnosis, treatment, and coping. In a 2021 study, researchers found that autistic people had more than twice the risk of developing AUD than non-autistic people. However, some studies disagree on whether autistic people have a greater risk of developing AUD or other substance use disorders (SUDs).

link between alcoholism and dementia

The 2 researchers will independently screen literatures, conduct data extraction, and quality evaluation. Any disagreement regarding inclusion will be resolved by discussion among all review authors. Researchers will screen titles and abstracts of the studies base on inclusion/exclusion criteria, and select the full text of potentially relevant studies for further assessment.

Publication types

link between alcoholism and dementia

You may also get a brain scan to rule out other potential conditions, like stroke, tumor, or a brain bleed caused by physical trauma. They’ll likely start by doing a physical exam and asking about your physical and psychological symptoms. They may also ask you to complete a questionnaire about symptoms related to your memory and cognitive abilities. If you think you may be experiencing alcohol-related dementia, talk with a healthcare professional. If you are undergoing alcohol withdrawal in a supervised medical setting, your healthcare team will monitor your vital signs and your overall mental status throughout the process so interventions can be started when needed to maintain your safety.

People with AUD have a reduced ability to stop or manage their alcohol consumption despite adverse consequences. Researchers are still investigating the connections between autism and alcohol use disorder (AUD). Although there is some evidence of a link, different studies have shown varying results. It’s important to point out that this particular study simply found a link between taking semaglutide and having a lower risk of Alzheimer’s disease in people with type 2 diabetes.