Articles tagged with Cocaine Addiction
Research found that individuals with low risk of cocaine dependence have an abnormally large frontal lobe, associated with self-control. This region is smaller in those who develop addiction. The study suggests that certain personality traits and brain structure can predict addiction risk.
Researchers from the University of Wisconsin-Milwaukee have identified a critical brain receptor that regulates extinction learning, which helps addicts stop drug use. By stimulating this receptor, drugs or molecular pathways could boost the effectiveness of exposure therapies and reduce craving and relapse.
Cocaine withdrawal affects emotion and motivation due to the activation of CB1 cells in the brain. These cells, responsible for regulating nerve cell communication, slow down activity in the nucleus accumbens when an addict is high on cocaine, leading to a drag on emotions and motivation during withdrawal.
A combination of naltrexone and buprenorphine has shown promise in reducing cocaine craving and blunting withdrawal symptoms in laboratory rats. This potential therapy, if proven safe and effective, would be a significant advance in treating cocaine addiction, which currently lacks FDA-approved medications.
A 15-year study found that oppositional behavior in childhood, particularly inattention, is strongly correlated with substance abuse in adulthood. Oppositional traits like irritability and disobedience increase the risk of tobacco, cannabis, and cocaine abuse by 1.4-2.9 times.
A new vaccine against cocaine addiction uses the body's own immune system to prevent the high, as demonstrated by a molecular imaging technique. The vaccine, called dAd5GNE, combines a cocaine-like molecule with part of the common cold virus, inducing antibodies that bind cocaine in blood and prevent it from entering the brain.
Research finds chronic cocaine exposure reduces Rac1 protein expression, driving structural changes and increased sensitivity to cocaine's rewarding effects. This discovery suggests a potential new target for treating cocaine addiction treatment.
Researchers found a link between bingeing on fat and cocaine-seeking behavior in rats, indicating that conditions promoting excessive behavior towards one substance can increase the probability of excessive behavior towards another. This study may shed light on the factors that promote substance abuse and addiction.
Scientists discovered that repeated cocaine exposure decreases a crucial brain protein's activity, enhancing reward for cocaine use and stimulating addiction. The study also found that blocking this protein's light-activated form can prevent addiction.
Researchers found that nicotine alters the response to cocaine in terms of addiction-related behavior and synaptic plasticity. Nicotine also primes the response to cocaine by inhibiting histone deacetylase, enhancing cocaine's ability to activate the FosB gene.
Researchers found that cocaine addicts prioritize immediate rewards over delayed ones, regardless of the commodity involved. This study has implications for developing drug treatment programs based on incentives for delaying drug use.
Researchers at UWM have discovered that propranolol, a common beta blocker, can prevent the brain from retrieving memories associated with cocaine use in animal models. This finding could lead to the development of a first-ever pharmacological treatment for cocaine addiction.
Researchers discovered widespread loss of grey matter in frontal lobe of cocaine users, associated with greater compulsivity and attention problems. The study also found enlarged basal ganglia reward system, suggesting potential inherited vulnerability to addiction.
A new study found that nicotine can induce long-lasting changes in the brain's reward system, similar to cocaine. The researchers discovered that a receptor called D5 dopamine plays a key role in this process.
A study by Brookhaven National Laboratory found that cocaine users initially respond more intensely to drug-related images than non-users, but this response diminishes with recent use. The researchers suggest that this may lead to compulsive drug use as a way to compensate for reduced motivation.
A recent study published in Biology of Sex Differences found that female rats are more likely to develop cocaine addiction due to their heightened motivation and impulsivity. Researchers also discovered that the likelihood of drug abuse increases with an individual's sex, highlighting the need for targeted interventions.
A study at Brookhaven National Laboratory found that genetic factors and the length of time someone abuses drugs can impact brain structure, particularly in areas related to decision-making and learning. This research has implications for treatment strategies and suggests that curtailed drug use may be protective against brain changes.
Researchers have developed a long-lasting anti-cocaine immunity in mice using a unique vaccine that combines bits of the common cold virus with a particle that mimics cocaine. The approach may offer a simple way to break and reverse cocaine addiction, potentially useful for treating other addictions as well.
Researchers at UWM have discovered a potential treatment for cocaine addiction that blocks memory retrieval associated with drug use. The study shows propranolol to be effective in preventing relapse by replacing cocaine-associated memories with neutral associations.
Paul Kenny, a Scripps Research Institute associate professor, has been awarded the Jacob P. Waletzky Memorial Award for his groundbreaking research on drug addiction and compulsive eating. His work reveals new links between molecular mechanisms that drive both behaviors.
Researchers found that activation of D1 and D2 neurons in the nucleus accumbens region of the brain exert opposite effects on cocaine reward. Activation of D1 neurons increases cocaine reward, while activation of D2 neurons decreases it. This imbalance may lead to chronic exposure to cocaine resulting in decreased activity in D2 neurons.
A study found that Ritalin improved impaired brain function and enhanced cognitive performance in people addicted to cocaine. The medication combined with cognitive interventions may have a role in facilitating recovery from drug addiction.
Researchers have identified a mechanism by which disulfiram, a decades-old treatment for alcoholism, prevents cocaine relapse. A newer drug, nepicastat, works through the same mechanism and shows promise in treating cocaine addiction.
Researchers have discovered a protein called methyl CpG binding protein 2 (MeCP2) that may control the addictive impact of cocaine in the brain. MeCP2 interacts with microRNA to regulate an individual's motivation to consume cocaine, and its influence can reduce vulnerability to addiction.
Researchers discovered a distinct cholinergic system in cocaine-addicted brains, affecting blood flow and regions involved in emotions and behavior. This finding may lead to new treatment options for addiction by targeting this specific system.
Reducing Ago2-dependent microRNA expression reduces cocaine consumption in mice, suggesting a link between genetic regulation and addiction. Further research is needed to determine which microRNAs control cocaine addiction and whether similar pathways operate in humans.
Researchers discovered a specific microRNA sequence, microRNA-212, that protects rats from cocaine addiction by regulating CREB signaling. This finding suggests microRNAs may play a crucial role in vulnerability to addiction, offering new promise for anti-addiction medications.
Researchers at Scripps Research Institute have identified a specific microRNA that controls cocaine consumption and addiction. MicroRNA-212 was found to be increased in the brains of rats with extended access to cocaine, leading to reduced addictive behavior. This discovery suggests a potential new method for treating cocaine addiction.
Researchers discovered that recovering addicts who avoid coping with stress experience more cravings and are more likely to relapse. The study found that avoidance coping strategies can weaken a person's ability to deal with stress, leading to increased cravings.
Research suggests that novelty can compete with drug-linked cues in recovering addicts, potentially helping prevent relapse. The study found that rats were more likely to visit the side where they experienced rewarding effects of cocaine when given a choice.
A key epigenetic process in the brain's pleasure circuits is altered by chronic cocaine exposure, contributing to an acquired preference for cocaine. By reversing this epigenetic change, researchers were able to block gene expression changes and inhibit cocaine preference.
Research using animal models has identified key brain cells and circuits affected by addiction, shedding light on the cognitive problems associated with it. These findings may lead to more effective treatment options to weaken powerful cravings, ultimately guarding against relapse.
The study, involving over 14,656 patients, found that two-thirds of heroin users stopped or reduced their use, while a similar proportion of crack cocaine users did the same. Heroin use decreased by an average of 15 days per month, and crack cocaine use by eight days.
Researchers predict that changes in brain chemicals and synaptic connections are necessary for recovery from cocaine addiction. Excessive glutamate production in the pleasure center can cause permanent damage, making it challenging for the brain to regulate itself.
A brain-imaging study found that cocaine users show reduced activity in areas involved in monitoring behavior and regulating emotions, suggesting these impairments may underlie addictive vulnerability. Improving these functions could help addicted individuals resist drugs.
Researchers at UCI found that blocking melanin-concentrating hormone (MCH) in the brain's pleasure center limits cocaine cravings. MCH works with dopamine to create an addictive response to cocaine use. By targeting MCH, new treatments may help break addiction to cocaine and possibly other drugs.
Researchers found that honeybees danced vigorously in response to cocaine, indicating a potential susceptibility to the substance. The bees' sensitivity to rewards was increased, and they exhibited withdrawal symptoms when the drug was withheld.
A study found that cocaine-addicted individuals prefer drug-related images over neutral ones, challenging the assumption that pleasure drives drug choice. The tasks developed in this research can help clinicians monitor choice behavior in addicted individuals, potentially predicting treatment effectiveness and outcomes.
A brain imaging study found cocaine addicts exhibit reduced cortical thickness in areas responsible for attention and reward-based decision-making. The study suggests a mixture of drug effects and predisposition underlying these structural alterations, with potential implications for prevention efforts.
New research reveals that a specific dopamine pathway is responsible for the rewarding effects of nicotine. The mesolimbic dopamine system is also linked to addiction in other substances like cocaine and alcohol.
A large-scale analysis of monkeys addicted to cocaine reveals more numerous and long-lasting protein changes than previously thought, potentially explaining why cocaine addiction is difficult to overcome. The study provides a comprehensive assessment of biochemical changes in the cocaine-addicted brain.
A new study found that adolescent rats were more likely to prefer the place where they got cocaine, and even after extinction, a low dose of cocaine rekindled this preference. This suggests that younger brains are more vulnerable to addiction due to stronger memories for drug-associated cues.
Animal research in monkeys shows that treating with amphetamine reduces self-administration of cocaine for up to a month by about 60 percent. The study demonstrates the feasibility of using amphetamine-like drugs to treat cocaine addiction.
Researchers at Boston University School of Medicine discovered that diltiazem, a calcium channel blocker, disrupts the connection between dopamine and glutamate in the brain, driving cocaine cravings. The study provides new insights into the mechanisms of cocaine addiction and potential strategies for developing effective treatments.
Researchers at UTMB will study brain's electrochemical signaling system to develop new anti-addiction drugs, potentially benefiting compulsive overeaters as well. The four-year program aims to find effective treatments for substance abuse and addiction.
Researchers at the University of Illinois Chicago have received a $2.2 million grant to develop therapeutics for suppressing cocaine cravings by targeting 5-HT2 receptors in the brain. These receptors play a crucial role in controlling a person's desire to use drugs.
Chronic cocaine exposure increases histone deacetylase 5, activating genes associated with addiction and depression. Stress also reduces HDAC5 function, leading to depressive-like symptoms in mice.
Researchers found that cocaine-addicted individuals have compromised sensitivity to monetary rewards, which may explain why they struggle to change their drug-taking behavior. The study suggests that this altered sensitivity to reward could be a key factor in the difficulty of modifying drug-taking behavior.
Research reveals a key mechanism by which gene expression is modified in response to addictive drugs, identifying a splicing factor as a critical regulator. This study provides new insights into the molecular underpinnings of addiction and offers promising avenues for developing novel treatments.
Researchers analyzed thousands of proteins from brain tissue samples to find novel changes related to cocaine addiction. The study reveals profound effects on brain function and identifies potential new targets for medication development.
The Methamphetamine Abuse Research Center (MARC) will investigate the genetic basis of addiction and develop targeted therapies. The center aims to create educational programs for school-age children and provide clinical treatments for rural patients affected by meth use.
Researchers found increased dopamine levels in the dorsal striatum, a part of the brain involved in desire and motivation, when cocaine addicts watched a video featuring people using cocaine. This increase was associated with craving levels and largest in severely addicted subjects.
A study at UT Southwestern Medical Center found that cocaine cravings are linked to brain response, particularly in the mesolimbic dopamine system. Stronger addictions show altered sensitivity to dopamine receptors D1 and D2, which can help understand addiction mechanisms.
A new study finds that the herbal supplement NAC can help reduce cocaine cravings in individuals undergoing treatment for cocaine addiction. The research, conducted at the ACNP Annual Meeting, showed that NAC-treated subjects had reduced brain activity in the prefrontal cortex and reported less craving for cocaine.
Scientists have found that CART peptides are essential for the maximal effects of cocaine and amphetamine, leading to a novel target for treating stimulant drug addiction. The study showed reduced responses to these drugs in mice lacking CART peptides.
Researchers found a significant reduction in amygdala volume in cocaine addicts compared to nonaddicts, suggesting a possible predisposition to addiction. The study's findings indicate that the condition may pre-exist addiction and could be linked to difficulties in identifying potential negative outcomes.
An imaging study found a structural difference in the brains of cocaine addicts, with the amygdala being smaller. This could reflect impaired judgement and contribute to the addictive behavior.
Researchers found that Homer1 or Homer2 gene knockout mice showed greater preference for chambers associated with cocaine administration and increased motivation to self-administer cocaine. They also exhibited neurochemical changes characteristic of addiction, including reduced glutamate levels during withdrawal.
Yerkes researchers found a combination of dopamine transporter inhibition and serotonin transporter inhibition effective in limiting cocaine use in rhesus macaques. The therapy shows promise as a potential treatment for cocaine addiction.
A study found that adopting the 12-step philosophy and behaviors significantly enhanced drug counseling outcomes for cocaine addiction. Changing beliefs about addiction was more highly correlated with reduced drug use than adopting the 12-step philosophy.