Alcohol Use and Abuse: Comprehensive Notes

Diseases Related to Alcohol Use and Abuse

Definitions and Types of Alcoholism

  • Who becomes an alcoholic?

  • Alcoholism: A chronic disease characterized by an inability to manage drinking, resulting in physical, social, and emotional problems.

  • Alcohol abuse: Harmful use of alcohol leading to problems in social, occupational, legal, or interpersonal domains.

  • Alcohol dependence: A more severe form of alcohol use disorder, characterized by a physical addiction.

Characteristics of Alcoholism

  • Lack of Control over drinking

  • Preoccupation with drinking

  • Continued use despite negative consequences

  • Distorted thinking

  • Vocational, social, and family issues

  • Emotional problems: E.g., depression

  • Physical problems: Organ damage due to excessive drinking

  • Symptoms of Withdrawal: Include anxiety, tremors, sweating, and seizures.

Types of Alcoholics

  • Type 1 Alcoholics:

    • Onset: Problems develop later in life.

    • Functioning: Generally function well in society.

    • Environmental Impact: Environmental factors play a strong role.

    • Drinking Pattern: Experience cycles of abstinence and binging.

  • Type 2 Alcoholics:

    • Onset: Problems usually arise before age 25.

    • Functioning: Poor functioning in society.

    • Genetic Factor: A strong genetic predisposition.

    • Drinking Pattern: Rarely abstinent; more chronic use.

Genetics of Alcoholism

  • Genetic Factors:

    • Acetaldehyde dehydrogenase enzyme affects alcohol metabolism, especially prevalent in Asians.

    • Twin studies: Concordance rates show 55% for identical twins and 28% for fraternal twins suggest a genetic underpinning.

    • Adoption Studies: Individuals with an alcoholic biological parent are at increased risk.

    • Gender Differences: Males are more likely to develop alcoholism than females.

    • Alcohol Gene: No single gene responsible for alcoholism; it's influenced by multiple genetic and environmental factors.

Environmental Factors

  • Adoption studies highlight the impact of genetics versus environment in the onset of alcoholism.

Effects of Chronic Alcoholism on the Body

  • Liver:

    • Fatty liver: Accumulation of fat in liver cells.

    • Alcoholic hepatitis: Inflammation caused by excessive alcohol use.

    • Cirrhosis: Scarring of liver tissue leading to serious health issues.

  • Other chronic diseases include:

    • Cardiovascular complications

    • Various cancers (e.g., esophageal cancer)

    • Gastritis (inflammation of the stomach lining)

    • Pancreatitis (inflammation of the pancreas)

Effects of Chronic Alcoholism on the Brain

  • Alcohol-Related Dementia:

    • Brain changes leading to ventricle enlargement and widening of sulci.

    • Involves deficits in neurotransmitter acetylcholine.

  • Wernicke-Korsakoff Syndrome:

    • Wernicke’s Encephalopathy: Acute phase with symptoms of confusion and ataxia.

    • Thiamine deficiency (Vitamin B1) is critical in this condition.

    • Korsakoff’s Psychosis:

    • Retrograde amnesia: Loss of past memories.

    • Anterograde amnesia: Trouble forming new memories.

    • Confabulations: Filling in memory gaps with fabricated details.

    • Involvement of the Diencephalon region of the brain.

Treatments for Alcoholism

  • Biological Interventions:

    • Antabuse: Causes unpleasant reactions when alcohol is consumed.

    • Revia: Reduces cravings.

    • Revex: May aid in reducing dependence.

    • Zofran: Treats nausea; may help with cravings.

  • Psychosocial Treatments:

    • Alcoholics Anonymous: Support group for recovery.

    • SMART Recovery: Focus on self-management and recovery training.

Withdrawal Symptoms

  • First Cluster: Alcohol Withdrawal Syndrome (AWS) - symptoms may include anxiety and tremors.

  • Second Cluster: Delirium Tremens (DT) - severe complications like hallucinations and seizures.

Fetal Alcohol Syndrome (FAS)

  • Definition: A teratogen that affects fetal development.

  • Fetal Alcohol Spectrum Disorders: A range of conditions resulting from alcohol exposure.

  • Brain Changes: Structural and functional changes in the brain due to prenatal alcohol exposure.

  • Cognitive Deficits: Impairments in cognitive functions such as learning and memory.