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Drug rehabilitation is the process of medical or psychotherapeutic treatment for dependency on psychoactive substances such as alcohol, prescription drugs, and street drugs such as cannabis, cocaine, heroin or amphetamines. The general intent is to enable the patient to confront substance dependence, if present, and stop substance misuse to avoid the psychological, legal, financial, social, and physical consequences that can be caused.
Opioid use disorder (OUD) is a substance use disorder characterized by cravings for opioids, continued use despite physical and/or psychological deterioration, increased tolerance with use, and withdrawal symptoms after discontinuing opioids. Opioid withdrawal symptoms include nausea, muscle aches, diarrhea, trouble sleeping, agitation, and a low mood. Addiction and dependence are important components of opioid use disorder.
The gateway drug effect is a comprehensive catchphrase for the often observed effect that the use of a psychoactive substance is coupled to an increased probability of the use of further substances. Possible reasons for the connection include environmental influence, impulsive people seeking both soft and hard drugs, alterations in the brain due to earlier substance exposure, as well as similar attitudes of people who use different substances, and therefore experience a "common liability to addiction". In 2020, the National Institute on Drug Abuse released a research report which supported allegations that marijuana is a "gateway" to more dangerous substance use; one of the peer-reviewed papers cited in the report claims that while "some studies have found that use of legal drugs or cannabis are not a requirement for the progression to other illicit drugs [...] most studies have supported the "gateway sequence"." However, a 2018 literature review conducted by the National Institute of Justice, which analyzed 23 peer-reviewed research studies, concluded "that existing statistical research and analysis relevant to the "gateway" hypothesis has produced mixed results", and that "no causal link between cannabis use and the use of other illicit drugs can be claimed at this time."
In internal medicine, relapse or recidivism is a recurrence of a past condition. For example, multiple sclerosis and malaria often exhibit peaks of activity and sometimes very long periods of dormancy, followed by relapse or recrudescence.
Substance dependence, also known as drug dependence, is a biopsychological situation whereby an individual's functionality is dependent on the necessitated re-consumption of a psychoactive substance because of an adaptive state that has developed within the individual from psychoactive substance consumption that results in the experience of withdrawal and that necessitates the re-consumption of the drug. A drug addiction, a distinct concept from substance dependence, is defined as compulsive, out-of-control drug use, despite negative consequences. An addictive drug is a drug which is both rewarding and reinforcing. ΔFosB, a gene transcription factor, is now known to be a critical component and common factor in the development of virtually all forms of behavioral and drug addictions, but not dependence.
The orbitofrontal cortex (OFC) is a prefrontal cortex region in the frontal lobes of the brain which is involved in the cognitive process of decision-making. In non-human primates it consists of the association cortex areas Brodmann area 11, 12 and 13; in humans it consists of Brodmann area 10, 11 and 47.
Attentional bias refers to how a person's perception is affected by selective factors in their attention. Attentional biases may explain an individual's failure to consider alternative possibilities when occupied with an existing train of thought. For example, cigarette smokers have been shown to possess an attentional bias for smoking-related cues around them, due to their brain's altered reward sensitivity. Attentional bias has also been associated with clinically relevant symptoms such as anxiety and depression.
Cue reactivity is a type of learned response which is observed in individuals with an addiction and involves significant physiological and psychological reactions to presentations of drug-related stimuli. The central tenet of cue reactivity is that cues previously predicting receipt of drug reward under certain conditions can evoke stimulus associated responses such as urges to use drugs. In other words, learned cues can signal drug reward, in that cues previously associated with drug use can elicit cue-reactivity such as arousal, anticipation, and changes in behavioral motivation. Responses to a drug cue can be physiological, behavioral, or symbolic expressive. The clinical utility of cue reactivity is based on the conceptualization that drug cues elicit craving which is a critical factor in the maintenance and relapse to drug use. Additionally, cue reactivity allows for the development of testable hypotheses grounded in established theories of human behavior. Therefore, researchers have leveraged the cue reactivity paradigm to study addiction, antecedents of relapse, craving, translate pre-clinical findings to clinical samples, and contribute to the development of new treatment methods. Testing cue reactivity in human samples involves exposing individuals with a substance use disorder to drug-related cues and drug neutral cues, and then measuring their reactions by assessing changes in self-reported drug craving and physiological responses.
An addictive behavior is a behavior, or a stimulus related to a behavior, that is both rewarding and reinforcing, and is associated with the development of an addiction. There are two main forms of addiction: substance use disorders and behavioral addiction. The parallels and distinctions between behavioral addictions and other compulsive behavior disorders like bulimia nervosa and obsessive-compulsive disorder (OCD) are still being researched by behavioral scientists.
Nicotine dependence is a state of dependence upon nicotine. Nicotine dependence is a chronic, relapsing disease defined as a compulsive craving to use the drug, despite social consequences, loss of control over drug intake, and emergence of withdrawal symptoms. Tolerance is another component of drug dependence. Nicotine dependence develops over time as a person continues to use nicotine. The most commonly used tobacco product is cigarettes, but all forms of tobacco use and e-cigarette use can cause dependence. Nicotine dependence is a serious public health problem because it leads to continued tobacco use, which is one of the leading preventable causes of death worldwide, causing more than 8 million deaths per year.
Cocaine dependence is a neurological disorder that is characterized by withdrawal symptoms upon cessation from cocaine use. It also often coincides with cocaine addiction which is a biopsychosocial disorder characterized by persistent use of cocaine and/or crack despite substantial harm and adverse consequences. The Diagnostic and Statistical Manual of Mental Disorders, classifies problematic cocaine use as a "Stimulant use disorder". The International Classification of Diseases, includes "Cocaine dependence" as a classification (diagnosis) under "Disorders due to use of cocaine".
Substance use disorder (SUD) is the persistent use of drugs despite the substantial harm and adverse consequences to one's own self and others, as a result of their use. In perspective, the effects of the wrong use of substances that are capable of causing harm to the user or others, have been extensively described in different studies using a variety of terms such as substance use problems, problematic drugs or alcohol use, and substance use disorder. The National Institute of Mental Health (NIMH) states that "Substance use disorder (SUD) is a treatable mental disorder that affects a person's brain and behavior, leading to their inability to control their use of substances like legal or illegal drugs, alcohol, or medications. Symptoms can be moderate to severe, with addiction being the most severe form of SUD". Substance use disorders (SUD) are considered to be a serious mental illness that fluctuates with the age that symptoms first start appearing in an individual, the time during which it exists and the type of substance that is used. It is not uncommon for those who have SUD to also have other mental health disorders. Substance use disorders are characterized by an array of mental/emotional, physical, and behavioral problems such as chronic guilt; an inability to reduce or stop consuming the substance(s) despite repeated attempts; operating vehicles while intoxicated; and physiological withdrawal symptoms. Drug classes that are commonly involved in SUD include: alcohol (alcoholism); cannabis; opioids; stimulants such as nicotine, cocaine and amphetamines; benzodiazepines; barbiturates; and other substances.
Addiction is a neuropsychological disorder characterized by a persistent and intense urge to use a drug or engage in a behaviour that produces natural reward, despite substantial harm and other negative consequences. Repetitive drug use often alters brain function in ways that perpetuate craving, and weakens self-control. This phenomenon – drugs reshaping brain function – has led to an understanding of addiction as a brain disorder with a complex variety of psychosocial as well as neurobiological factors that are implicated in addiction's development. Classic signs of addiction include compulsive engagement in rewarding stimuli, preoccupation with substances or behavior, and continued use despite negative consequences. Habits and patterns associated with addiction are typically characterized by immediate gratification, coupled with delayed deleterious effects.
Cannabis use disorder (CUD), also known as cannabis addiction or marijuana addiction, is a psychiatric disorder defined in the fifth revision of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) and ICD-10 as the continued use of cannabis despite clinically significant impairment.
A psychoactive drug, psychopharmaceutical, psychoactive agent, or psychotropic drug is a chemical substance that changes the function of the nervous system and results in alterations of perception, mood, cognition, and behavior. These substances may be used medically, recreationally, for spiritual reasons, or for research. Some categories of psychoactive drugs may be prescribed by physicians and other healthcare practitioners because of their therapeutic value.
Mark S. Gold is an American physician, professor, author, and researcher on the effects of opioids, cocaine, tobacco, and other drugs as well as food on the brain and behavior. He is married to Janice Finn Gold.
Addiction vulnerability is an individual's risk of developing an addiction during their lifetime. There are a range of genetic and environmental risk factors for developing an addiction that vary across the population. Genetic and environmental risk factors each account for roughly half of an individual's risk for developing an addiction; the contribution from epigenetic risk factors to the total risk is unknown. Even in individuals with a relatively low genetic risk, exposure to sufficiently high doses of an addictive drug for a long period of time can result in an addiction. In other words, anyone can become an individual with a substance use disorder under particular circumstances. Research is working toward establishing a comprehensive picture of the neurobiology of addiction vulnerability, including all factors at work in propensity for addiction.
Hendrée E. Jones is a researcher on women's substance abuse disorders and its impact on children. She is a professor in the Department of Obstetrics and Gynecology at the University of North Carolina School of Medicine, and adjunct professor in the University of North Carolina College of Arts & Sciences Department of Psychology and Neuroscience. Jones is the executive director of the UNC Horizons Program, which is a comprehensive drug treatment program for mothers and their drug-exposed children. She is a consultant for the Substance Abuse and Mental Health Services Administration, the United Nations, and the World Health Organization.
Jean Lud Cadet is a Haitian-American psychiatrist at the National Institute on Drug Abuse (NIDA), where he serves as National Institutes of Health Chief of the Molecular Neuropsychiatry Research Branch. His research considers the genetic, epigenetic and cellular bases of substance abuse. In 2020 he was selected as one of Cell Press' Most Inspiring Black Scientists in America.
Amy Hauck Newman is an American medicinal chemist who is the scientific director of the intramural research program at the National Institute on Drug Abuse. She researches the design, synthesis, and evaluation of central nervous system (CNS) active agents as potential treatment medications for substance use disorders, with an emphasis on selective ligands for the dopaminergic system.
References
- ↑ "Dr. Amy Janes Joins the NIDA IRP". 28 October 2021. Retrieved March 18, 2024.
- 1 2 3 "NIDA IRP staff page for Amy Janes, Ph.D." Retrieved March 18, 2024.
- ↑ "FIARL lab".
- 1 2 "Amy Janes Harvard Profile".
- ↑ "McLean's Amy C. Janes, PhD, Receives Presidential Honor for Young Scientists".
- ↑ "2023 NIDA Women in Science Research Awardees". 11 May 2023.
- ↑ "Editors of Psychopharmacology" . Retrieved March 18, 2024.
- ↑ "Amy Janes Elected President of the College on Problems of Drug Dependence" . Retrieved March 18, 2024.
- ↑ "Past Officers of CPDD" . Retrieved March 18, 2024.
- ↑ "Amy Janes". scholar.google.com. Retrieved 2024-03-18.
- ↑ Janes, Amy (2007). "Acknowledgments". Type 4 Phosphodiesterases and Cocaine-induced Sensitization in Mice (Thesis).
- ↑ "JHU Neuroscience People". 18 January 2017.
- ↑ "Harry Janes Honored".