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While this may keep the party going, it may also mdma and the brain: is ecstasy neurotoxic be dangerous; the more pills you take in an evening, the greater the risk is of all sorts of bad things happening, including neurotoxicity. The research this story is based on has apparently never been published, suggesting that it was of such low quality that even in an age of anti-drug hysteria no scientific publication felt it was worth printing. However, the basic finding (that ecstasy users are more likely to have emotional problems) does in fact appear to be true.

• Studies of the drug can be criticized on the basis that they depend heavily on the quality of self-reported data.
• Psychological changes are explained as the euphoria, sharpened sensory perception, an increase in social performance and empathy, and greater tolerance of the feelings (Kalant, 2001).
• Briefly, tissue samples of brain structures were homogenized in ice-cold 0.1 M HClO4 and were centrifuged at 10000×g for 10 min at 4 °C.
• It is a constant, normal, and entirely controlled process by which your brain tries to keep itself running smoothly.
• As animal investigators have adopted various treatment regimens, (i.e. single or multiple doses per day, different inter-dose intervals) the amount of MDMA administered will be listed as the mg/kg/day.
• Serotonin and 5-HIAA levels appear to triple at birth but this transient increase was temporarily blunted by prenatal MDMA 51.

• Antioxidants are chemicals that, when they run into an oxidizer like hydrogen peroxide or superoxide, will easily react with it, neutralizing it. Both ecstasy and amphetamines are easy to manufacture in underground laboratories. Ecstasy is almost always sold as tablets or pills with various imprinted logos Figure 2.

Table 1. Demographics, characteristics of MDMA use and exposure to other recreational drugs.

Notice how a serotonin molecule can easily fit into the serotonin receptor, but not into the dopamine receptors (or any other type of receptor for that matter). The most consistently identified long-term effect following moderate to high dose MDMA exposure is a reduction in 5-HT levels but other parameters may also be affected. In addition to the acute changes following MDMA (described above), anxiety-like behavior may show enduring alterations subsequent to MDMA exposure.

Prodynorphin and Proenkephalin Levels in the Mouse Striatum

Overall, the many quantitative and qualitative differences between the mature and immature beings can limit any prediction of equivalent responses across ages. As will be shown, age differentially modulates the biochemical and behavioral consequences of MDMA. The following sections will provide a brief historical perspective on this drug and then contrast the pharmacokinetics and pharmacodynamics of MDMA at prenatal, adolescent, and adult ages using measures where comparative information is available. In addition, although epidemiological evidence indicates that infants are infrequently exposed to MDMA, some laboratories consider the preweanling rat to be analogous to third trimester human 160.

Studies in ecstasy users

The pixels were converted into square micrometers by employing a suited calibration, in order to represent the area occupied by a specific immunoreaction product in square micrometers. No significant differences in the density of immunoreacted fibers were seen between the three coronal sections. For each level of the striatum and mPFC, the obtained value was first normalized with respect to the vehicle, then, values from different levels were averaged. Users often consider ecstasy to lack the potential for dependence or addiction, but this is not the case. As reviewed by Degenhardt et al,130 evidence for dependence in ecstasy users comes from a combination of published case studies and assessments of user symptoms based on the Composite International Diagnostic Interview, the Diagnostic and Statistical Manual of Mental Disorders (DSM)-IV, and/or the Severity of Dependence Scale.

Neurochemical and Neurotoxic Effects of MDMA (Ecstasy) and Caffeine After Chronic Combined Administration in Mice

These transporters take the molecule and transport it back into the axon terminal. The serotonin enters one side, and the door spins around pushing it out the other side. We have shown here four reuptake pumps in various stages of transporting serotonin. Imagine them spinning and transporting serotonin from the synapse back into the axon.Reuptake transporters reduce the amount of serotonin in the synapse. As the reuptake pumps are pulling the serotonin back into the axon, some of this serotonin makes its way back into the vesicles, where the MDMA may cause it to be released again. Research has shown that your mood is influenced in part by the amount of serotonin receptor binding.

• As MDMA is colloquially known as ecstasy, it may not be surprising that adult humans report that the drug modifies the sexual experience 42,175.
• This effect results from a combination of increased heat production and deficient heat dissipation.26 Although many users are aware of the dangers of overheating, dehydration, and dysregulated electrolyte balance when dancing under the influence of MDMA, some fatalities have been reported (see later Morbidity and mortality section).
• Methamphetamine carries a much higher addiction liability and more severe long-term physical and psychological consequences.
• Ecstasy, which has been a mainstay on the party scene since the early 1990s, is now one of the most commonly used illegal drugs.

It involves using lower doses of MDMA in conjunction with multihour psychotherapy sessions to address mental health conditions such as post-traumatic stress disorder (PTSD), depression, and anxiety. However, prolonged or heavy use of MDMA can have short- and long-term effects on your brain, which may lead to emotional and cognitive issues. This work is funded by the Academic Medical Center (AMC Fellowship 2007) awarded to LR.

N-Methyl-3, 4-methylenedioxyamphetamine (MDMA), or ecstasy is a recreational drug of abuse. It is a synthetic substance that affects the body’s systems, which its mechanism of action and treatment should be more investigated. MDMA provides an immediate enjoyable feeling by stimulating the release of neurotransmitters, such as dopamine and serotonin in the brain. Unfortunately, abnormal regulation of the brain neurotransmitters, as well as the increased oxidative stress causes damage to the brain neurons after the MDMA exposure. Thus, the treatment of MDMA complications should be further explored mainly by targeting its mechanism of action in the neurotransmitter systems.

Our findings confirm previous animal findings that MDMA affects the developing brain differently and extend these observations for the first time to humans. These age-related effects most likely reflect the maturational stage of the 5-HT projection fields at age-at-first exposure and enhanced outgrowth of the 5-HT system due to 5-HT’s neurotrophic effects. At what age the 5-HT system becomes fully sensitive the MDMA’s neurotoxic effects is dependent on the developmental status of SERT and the maturation of 5-HT’s neurotransmitter function. These findings support the notion that during brain development the degree of structural plasticity of ascending 5-HT projections is higher than at later stages. To what extent these findings can be extrapolated to other drugs of abuse and medicines that have their primary action on the 5-HT system, is difficult to predict. Ultimately our data illustrate the need for more knowledge on the effects of pharmacotherapies that increase 5-HT levels during brain development, such as SSRIs for the treatment of childhood depression and anxiety disorders.

Comparing Their Effects and Risks

Our earlier study with a single-dose drug treatment indicates that caffeine-potentiated MDMA evoked DA release by blockade of A1 and A2A receptors (Górska and Gołembiowska 2015). However, other authors reported that the exacerbation of MDMA effect by caffeine in striatal slices was mediated via A1 receptors blockade (Vanattou-Saïfoudine et al. 2011). The difference in results reported by the above-cited studies may be related by way of drug application (systemic vs. local) and animal species (mice vs. rats). Caffeine given repeatedly increased the basal extracellular level of DA and increased MDMA effect on DA release. However, in contrast to animals pretreated with saline in which caffeine potentiated MDMA-induced increase in 5-HT release, caffeine inhibited the MDMA effect on 5-HT release in animals receiving both psychostimulants repeatedly.

Reverse transcriptase reactions were performed in the presence of an RNase inhibitor (rRNAsin; Promega, Madison, WI, USA) and oligo (dT)12–18 primer (Invitrogen). So the next time you hear about MDMA – whether it’s in the context of a wild night out or a groundbreaking medical study – remember the complex tale we’ve explored here. It’s a story of risk and reward, of pleasure and pain, of the delicate dance between chemical and consciousness that defines the human experience. From the dancefloor to the doctor’s office, MDMA continues to captivate and confound us.

Results with the elevated plus maze have produced discrepant outcomes both between 17,60,65,96,106 and within 118,119 laboratories. There have been findings of an increase 60,106, decrease 96, or no appreciable change 17,65 in anxiety-like behavior in adult rats. A three day treatment regimen (PD 28–30) caused no significant effects when rats were assessed in early adulthood 16,17. Repeated administration from PD 35 to 60, also in rats, resulted in increased open-arm exploration 119 or hyperactivity 118 which appears to depend on the dosing regimen although the inherent unreliability of this test 32 could also be a factor. An anxiogenic pattern in the emergence test has been consistently identified several weeks after adult MDMA treatments to Wistar 26,60,93,107,152 but not Sprague-Dawley rats 118. Possibly, these findings suggest there may be strain differences in either post-synaptic 5-HT receptors 17, or non-serotonergic mechanisms (described below) that mediate the behavioral toxicology of MDMA.

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The data were obtained from a PubMed search for papers having titles that contained the search terms “3,4-methylenedioxymethamphetamine or MDMA” and “lysergic acid diethylamide or LSD” conducted on March 20, 2018. Another theory gaining wider acceptance among researchers is that MDMA causes the reuptake transporters work backwards, transporting serotonin from inside the axon directly into to the synapse, without involving the vesicles at all. According to this theory, once the MDMA enters the transporter, it falls off inside the axon terminal, leaving the transporter in such a state that a serotonin molecule now binds to the place where the MDMA fell off. The transporter then spins around and deposits the serotonin molecule into the synapse, where another MDMA molecule binds to where this serotonin molecule fell off. We’ve been neglecting this issue for a while because it would have been confusing to present in the beginning.

• For instance, it is well known that MDMA inhibits the activity 190 and abundance of tryptophan hydroxylase 191 at least two weeks after MDMA.
• Neither the striatal PDYN expression, increased by MDMA, nor exploratory and locomotor activities of mice, decreased by MDMA, were affected by caffeine.
• Part of the motivation to look for toxic metabolites may have been a red herring; the localized injections into rat’s brains that failed to produce notable damage probably also failed to produce a significant increase in body temperature.
• Neurotoxicity studies can help us understand how common and severe these risks are in the long run.
• Depending on how much MDMA you took, you may end up depleting so much of your serotonin that fewer receptors are activated than before you took ecstasy, when you were in a normal brain state.

MDMA and Caffeine Effects on PDYN and PENK Gene Expressions and on Behavior

Your serotonin brain cells produce serotonin when an amino acid called 5-Hydroxy-Tryptophan (5-htp) enters the cell and comes into contact with an enzyme called decarboxylese. The decarboxylase strips off a piece of the 5-htp molecule, resulting in 5-ht (another name for serotonin). Some ecstasy users take 5-htp supplements to restore their depleted serotonin levels more quickly. L-tryptophan is another amino acid that will do the same thing, since it is a precursor of 5-htp. A diet high in tryptophan-containing proteins can also increase the amount of 5-htp in your brain, helping your brain build serotonin more quickly. Along with binding to receptors on the dendrite, serotonin molecules also bind to reuptake transporters on the axon.

MDMA (3,4-methylenedioxymethamphetamine) known as “ecstasy” is one of the most popular illicit drugs with empathogenic properties. MDMA acting at dopamine (DA) transporter (DAT) and serotonin (5-HT) transporter (SERT) stimulates non-exocytotic release of DA and 5-HT (Baumann et al. 2005; Sulzer et al. 2005). In rodents, MDMA has a preferential affinity for SERT over DAT, so it exerts a more pronounced effect on 5-HT release (Rudnick and Wall 1992).

The neurotoxic effect of MDMA in mice seems to be related to dopaminergic and serotonergic systems. Our data showed a significant decrease in markers of neuronal terminals, DAT, and SERT in the mouse striatum and frontal cortex after chronic administration of MDMA. There was also depletion of tissue concentration of DOPAC and 5-HIAA, but not DA and 5-HT, in the striatum and the frontal cortex of mice. Neurotoxic effect seems to result from formation of ROS because we observed oxidative damage of neuronal DNA in the cortex 2 months after acute and chronic doses of MDMA.

David E Olson

Ecstasy (MDMA) and stimulant amphetamines (METH and AMPPI) are popular drugs of abuse and they are neurotoxic in animal studies. High and repeated doses of MDMA cause selective and long-lasting degeneration of 5-HT axon terminals in several brain regions, whereas METH and AMPH damage both serotonergic and dopaminergic neurons. Although the doses taken recreationally are considerably lower than the doses typically given in animal studies, some users exhibit compulsive binge use behaviors that may well correspond to the animal doses. In addition, polydrug use and the typical environment of use (hot, overcrowded, and noisy rooms, extensive physical exercise in the form of dancing) may well potentiate the neurotoxic effects of the drugs. The amphetamine-type stimulant drugs, such as MDMA or ecstasy become the choice of drug abuse among young people and adults besides opioids, which is due to a feeling of excitement experienced immediately after the administration.

Effects on Monoamines.

Caffeine potentiates MDMA effect on dopaminergic system and inhibits its effect on serotonergic neurons. Exacerbation of MDMA-evoked oxidative stress may cause damage of serotonergic terminals. In contrast to the lack of research on DA involvement in the acute effects of MDMA, a number of pharmacological studies using various transporter inhibitors and receptor antagonists have provided information regarding the role of the serotonergic and noradrenergic systems in the subjective and physiological effects of MDMA in humans.

Table 2. Specific β-CIT SERT binding ratios in saline and MDMA-treated rats.

Even sophisticated mathematical techniques to approximate dose equivalencies across species 22 do not address developmental factors. Further study using the same MDMA dose and route of administration across a range of ages in both sexes and measuring the neurotoxic MDMA metabolite levels in plasma, brain, and, if feasible, urine, would greatly enhance our understanding of how different development periods differ in their susceptibility to the consequences of MDMA. Images of single wavelengths were obtained with an epifluorescence microscope (Axio Scope A1, Zeiss, Oberkochen, Germany) connected with a digital camera (1.4 MPixels, Infinity 3–1, Lumenera, Nepean, Canada).

The girl’s brain scan may actually be abnormal, but there is no way to know what caused it (depression can also reduce brain activity, as can fatigue), or if her brain was ever like the “healthy brain” example they showed, or if what changes were seen were merely temporary. Looking back at the first pair of images, you’ll notice two blobs floating on one side of the ‘healthy’ image. The eyes do not appear in the other image, suggesting that different settings have been used–settings that would hide more of the scan’s data. In fact, those two images could possibly have been generated from the same scan of the same person, merely rendered differently. (Antioxidant use is actually good advice for any drug user, including smokers and drinkers.) Visit Preloading for more information on antioxidants.

Neurochemical and Neurotoxic Effects of MDMA (Ecstasy) and Caffeine After Chronic Combined Administration in Mice

MDMA was a chemical intermediate in the synthesis of hydrastinin, an astringent to control bleeding. (A popular, although inaccurate, misconception is that MDMA was developed as an appetite suppressant 77). The U.S. Army Chemical Center conducted toxicological studies in the 1950’s which were declassified and published two-decades later 62.

Neuropsychological deficits

Moreover, amphetamines and MDMA have been shown to be neurotoxic in animal studies, particularly when given at high and repeated doses. In the following sections we review the evidence for neurotoxicity in animal studies and in human populations. As MDMA is colloquially known as ecstasy, it may not be surprising that adult humans report that the drug modifies the sexual experience 42,175.

The pills typically contain 70 to 120 mg of MDMA, although the concentration may sometimes be higher or lower. Occasionally ecstasy tablets will contain similarly acting analogues (3,4-methylenedioxy-Nethylamphetamine MDE, 3,4-methylenedioxyamphetamine MDA, or 3,4-methylenedioxy-alpha-ethylN-methylphenethylamine MBDB, Figure 1) or amphetamines, and more rarely they may also contain substances from different classes. Amphetamines are mostly sold as powder which can be inhaled, smoked, ingested, or injected, although intranasal use (“snorting”) is now particularly common. Serotonin blocking antidepressants such as Selective Serotonin Reuptake Inhibitors (SSRIs e.g. Prozac or fluoxetine) can diminish neurotoxic potential of MDMA 18. However, this is a poor strategy overall because serotonin blocking antidepressants also greatly diminish the subjective experience of MDMA 19-22.

MDMA (3,4-methylenedioxymethamphetamine) is a psychostimulant popular as a recreational drug because of its effect on mood and social interactions. MDMA acts at dopamine (DA) transporter (DAT) and serotonin (5-HT) transporter (SERT) and is known to induce damage of dopamine and serotonin neurons. Caffeine as a non-selective adenosine A1/A2A receptor antagonist affects dopaminergic and serotonergic transmissions.

• The entactogen ±3,4-methylenedioxymethamphetamine (MDMA or ecstasy) is a popular recreational drug among college, high school, and, occasionally, middle school students.
• Once MDMA was given a Schedule I designation, it was no longer legally possible to administer the substance for therapeutic purposes, although Greer and Tolbert141 later published a description of the methods they developed for using MDMA in a therapeutic setting.
• There have been findings of an increase 60,106, decrease 96, or no appreciable change 17,65 in anxiety-like behavior in adult rats.
• As mentioned in the “Introduction” section, caffeine increases the activity of both types of neurons (Johansson et al. 1994).

Neurotoxicity of ecstasy (MDMA): an overview

Although self-reported substance use is an imperfect measure, the conclusion that ecstasy use is prevalent is generally supported by other indices of drug use including arrests 123, drug seizures 143, hair analyses 69, emergency room records 53,98,114, and coroner’s reports 138. Serotonin isn’t just about feeling good – it plays a role in regulating mood, sleep, appetite, and even cognitive function. MDMA’s intense effect on this system can lead to long-term changes in how your brain processes serotonin, potentially setting the stage for mood disorders and other mental health issues. These initial findings provide hope that the addition of mdma and the brain: is ecstasy neurotoxic a few low doses of MDMA (ie, around 2 mg/kg or less) to established psychotherapeutic approaches may be beneficial to patients with chronic treatment-resistant PTSD. Indeed, Johansen and Krebs145 have offered a summary of potential neurobiological mechanisms that could underlie such an effect of MDMA. Virtually all medications involve some degree of risk, as a result of which, standard medical practice requires that the benefit obtained from a drug significantly outweighs the risk to the patient.