Alcohol and Your Immune System: Does It Help or Hurt?

Specifically, they help the adaptive immune system spot and neutralize germs more quickly. Throughout the internet, you’ll find people arguing about the pros and cons of a wide range of specialty diets, including paleo, low-carb, vegetarian, Mediterranean and more. They encourage people to consume fewer ultraprocessed foods and eat more minimally processed whole foods like fish, low-fat dairy, vegetables, whole grains, legumes, nuts and seeds.

• This same treatment also inhibited the in vitro production of IL-6 and IL-12 by peritoneal macrophages harvested 2 hours following injection of LPS (Pruett, Fan et al. 2005).
• Monocytes express Toll-like receptor (TLR) 4, which is the PRR responsible for recognizing the endotoxin LPS on the surface of Gram negative bacteria.
• “Anyone with chronic liver conditions should be avoiding alcohol, for example, people with hepatitis, nonalcoholic fatty liver disease, liver inflammation, and any condition that could affect liver function would be a reason to avoid alcohol,” notes Favini.
• These articles detail how alcohol affects the immune system and how researchers are harnessing this knowledge to help prevent and treat alcohol-related harm.
• These foods may help your body make more of the white blood cells you need to fight off infections.

“Although there is no evidence that moderate drinking harms the immune system, it is better to stick to wine or beer since these have lower percent alcohol,” Dasgupta says. That can put you at risk for long-term disease, according to the National Institute of Alcohol Abuse and Alcoholism (NIAAA). Even a short bout of binge drinking leaves you at higher risk for infection for about 24 hours.

Effect on antibodies

Naïve human T cells produce low levels of VDR, but expression is increased to moderate levels in activated T cells (Irvin et al. 2000). Human T cells incubated in vitro with variable concentrations of ethanol (0, 10, 25, and 50mM for 24 hours) showed a reduced expression of the VDR, accompanied by increased expression of RAS and ROS as well as increased T-cell death (Rehman et al. 2013). Additional analyses demonstrated that ethanol exposure promoted apoptosis by inducing breaks in the DNA of the does alcohol compromise your immune system T cells. This damage to the DNA most likely was mediated by ROS generation in response to RAS activation. Treatment with a compound that activates the VDR (i.e., a VDR agonist) restored the T cell’s VDR expression, down-regulated RAS expression as well as ROS generation, and thus preserved T-cell survival (Rehman et al. 2013). Additionally, disregarding the specificity of the innate immunity, the influence of alcohol-induced oxidative stress on cardiovascular system has to be considered as well.

• Chronic alcohol abuse leads to increased susceptibility to bacterial and viral infections, most notably a 3 to 7-fold increase in susceptibility (Schmidt and De Lint 1972) and severity (Saitz, Ghali et al. 1997) of bacterial pneumonia compared with control subjects.
• These observations could explain why animals drinking moderately generated a more robust response to MVA vaccination compared to controls and animals that drank to intoxication since these factors are critical for lymphocyte proliferation, T cell activation and effector function, and immune cell recruitment.
• In contrast, the ethanol-consuming mice exhibited no change in the frequency of certain circulating lymphocytes (i.e., CD3 cells) after LPS injection, suggesting that chronic alcohol consumption may potentially impair the ability of lymphocytes to migrate out of circulation (Percival and Sims 2000).

Cirrhosis, on the other hand, is irreversible and can lead to liver failure and liver cancer, even if you abstain from alcohol. But when you ingest too much alcohol for your liver to process in a timely manner, a buildup of toxic substances begins to take a toll on your liver. 3The HIV (or SIV) set point is the stable viral load that is established in an HIV-infected person after the initial phase of the infection, when the person’s immune systems tries to fight the virus. The higher the viral load of the set point, the faster infection will progress to full-blown AIDS.

Focus on: Alcohol and the immune system

These observations could explain why animals drinking moderately generated a more robust response to MVA vaccination compared to controls and animals that drank to intoxication since these factors are critical for lymphocyte proliferation, T cell activation and effector function, and immune cell recruitment. In summary, several in vitro and in vivo studies demonstrate that ethanol modulates the function of innate immune cells (monocytes and DCs) in a dose and time dependent manner (Figure 1). Acute high dose exposures inhibit whereas long-term treatments stimulate proinflammatory cytokine production.

“The good news is that earlier stages of steatotic liver disease are usually completely reversible in about four to six weeks if you abstain from drinking alcohol,” Dr. Sengupta assures. Eventually, you can develop permanent and irreversible scarring in your liver, which is called cirrhosis. Heavy drinking can also lead to a host of health concerns, like brain damage, heart disease, cirrhosis of the liver and even certain kinds of cancer. Heavy alcohol use weakens the immune system, and a weak immune system makes it easier to get sick. However, there are signs that you can look for if you are concerned that your drinking might be affecting your immunity.

How Much Alcohol Is a Problem For Your Immunity?

Primates have a threelayer adrenal cortex with cortisol being the primary glucocorticoid produced in the zona fasciculata (Nguyen and Conley 2008), which is released in response to stress (O’Connor, O’Halloran et al. 2000). Corticosterone is the main glucocorticoid involved in the regulation of stress responses in rodents (Smith and Vale 2006). Taken together, all these findings suggest that in utero exposure to ethanol may increase the risk for infections during early childhood or adulthood as a result of alcohol-induced defects in B-cell and T-cell development.