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Alcohol, HMGB1, and Innate Immune Signaling in the Brain

Introduction

Alcohol intoxication alters neuronal networks that markedly impact impulsiveness, balance, and other important brain functions. Although acute intoxication has immediate dangers, alcohol use disorder (AUD) has a lasting impact on individuals and families. AUD is considered a chronic relapsing disease linked to cycles of intoxication often initiated in adolescence that change neuronal...

Alcohol Use Disorder and Dementia: A Review

Introduction

In 2020, an estimated 17% of the U.S. population was older than age 65; this proportion is projected to rise to about 23% by 2060.1,2 This prompts an urgent need for identifying potential and modifiable risk factors contributing to health decline.3,4 After tobacco, alcohol is the most misused substance in the United States and abroad.5 Even prior to the coronavirus disease 2019 (COVID...

Alcohol and Skeletal Muscle in Health and Disease

Introduction

Alcohol misuse is the most common form of substance misuse and is associated with liver, cardiovascular, and metabolic diseases as well as with infections and cancers.1 Although an estimated 20% to 25% of people who drink heavily develop alcohol-related liver disease,2 40% to 60% of people with alcohol misuse have alcohol-related myopathy.3 Evidence that alcohol use leads to skeletal...

Identifying Prenatal Alcohol Exposure and Children Affected by It: A Review of Biomarkers and Screening Tools

Introduction

Although the awareness of the negative impact of prenatal alcohol exposure (PAE) was already alluded to in ancient writings1 and the impact of ethanol embryopathy in animal models was studied as early as 1910,2 the conceptualization of a syndrome associated with PAE was not recognized within modern medicine until the mid-20th century.3,4 The syndrome or disorder was not uniformly...

Alcohol’s Negative Emotional Side: The Role of Stress Neurobiology in Alcohol Use Disorder

Introduction

The word “alcohol” often conjures up positive feelings and associations with fun, socializing, relaxing, and partying. Yet there is another side to drinking alcohol, especially with risky, hazardous levels of consumption. This side is associated with distress and may include anxiety, loneliness, pain, and depressive symptoms.1 This has been labeled the “dark side,” or “negative...

Alcohol and Cannabinoids - From the Editors

Alcohol is frequently used in association with cannabis, with co-use now perceived as normative with expanding cannabis legalization. Cannabinoid products are increasingly used for a number of medical and recreational purposes, including to enhance alcohol-reinforcing properties or in some cases to substitute for alcohol. Rates of alcohol use disorder (AUD) are higher among cannabis users relative...

Alcohol-Endocannabinoid Interactions: Implications for Addiction-Related Behavioral Processes

Introduction

Endogenous cannabinoids, or endocannabinoids (eCBs), are bioactive lipid molecules that modulate signaling activity of several physiological processes involved in pain, appetite, energy balance, stress/anxiety, immune signaling, and learning and memory. Although understanding of the eCB system has grown in complexity since its discovery by Raphael Mechoulam, it is now widely known that...

Fetal Alcohol Spectrum Disorders: Awareness to Insight in Just 50 Years

Introduction

The establishment of the National Institute on Alcohol Abuse and Alcoholism (NIAAA) in 1971 was bracketed by three seminal papers that laid the groundwork for the field of fetal alcohol spectrum disorders (FASD) research. In 1968, Lemoine et al.1 described children with birth defects and neurodevelopmental disorders associated with prenatal alcohol exposure (PAE). This French-language...

Patterns of Cannabis and Alcohol Co-Use: Substitution Versus Complementary Effects

Introduction

Use of alcohol and related problems cause significant global and individual health-related harms, and alcohol use is currently the third-leading cause of preventable death in the United States.1,2 Alcohol and cannabis are among the most commonly used psychoactive substances in the United States.3 Although concurrent use of alcohol and cannabis (i.e., co-use: defined as using both...

The Convergent Neuroscience of Affective Pain and Substance Use Disorder

Introduction

A central feature of substance use disorder (SUD) is the emergence of negative affective or emotional states that influence the motivational properties of misused substances.1 Individual propensity to experience pain-related negative affect, for example, is hypothesized to be associated with the maintenance of both opioid use disorder (OUD) and alcohol use disorder (AUD). Chronic pain...