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Mescaline / Cacti

A Note on the Docking of some Hallucinogens to the 5-HT2A Receptor

April 20, 2015 / DMT, Mescaline / Cacti, Papers, Pharmacology & Chemistry, Publications / By / ,

Abstract

The activation of 5-HT2A receptors by the binding of some ligands produces several altered states of consciousness in humans. The knowledge of the manner a hallucinogen interacts with this receptor should be the first step to know how these chemicals transfer information to produce the final biological effect(s). Here, we present the results of a docking study of some hallucinogens (LSD, mescaline, DMT, 25I-NBOMe and others), to a recent model of the 5-HT2A receptor. The rigid and flexible residues approach es were employed. The best approach is to allow conformational flexibility to the residues of the binding site. The Val-156 residue appears to be common to all flexible docking results and all molecules interact with the transmembrane 3 helix. The other interactions are particular to each molecule.

Gómez-Jeria, J. S., & Robles-Navarro, A. (2015). A Note on the Docking of some Hallucinogens to the 5-HT2A Receptor. Journal of Computational Methods in Molecular Design, 5(1), 45-57.
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Classic hallucinogens in the treatment of addictions

March 14, 2015 / Ayahuasca, DMT, Iboga / Ibogaine, LSD, Mescaline / Cacti, Mushrooms / Psilocybin, Neuroscience, Papers, Psychology, Publications, Substance Use Disorder / By / ,

Abstract

Addictive disorders are very common and have devastating individual and social consequences. Currently available treatment is moderately effective at best. After many years of neglect, there is renewed interest in potential clinical uses for classic hallucinogens in the treatment of addictions and other behavioral health conditions. In this paper we provide a comprehensive review of both historical and recent clinical research on the use of classic hallucinogens in the treatment of addiction, selectively review other relevant research concerning hallucinogens, and suggest directions for future research. Clinical trial data are very limited except for the use of LSD in the treatment of alcoholism, where a meta-analysis of controlled trials has demonstrated a consistent and clinically significant beneficial effect of high-dose LSD. Recent pilot studies of psilocybin-assisted treatment of nicotine and alcohol dependence had strikingly positive outcomes, but controlled trials will be necessary to evaluate the efficacy of these treatments. Although plausible biological mechanisms have been proposed, currently the strongest evidence is for the role of mystical or other meaningful experiences as mediators of therapeutic effects. Classic hallucinogens have an excellent record of safety in the context of clinical research. Given our limited understanding of the clinically relevant effects of classic hallucinogens, there is a wealth of opportunities for research that could contribute important new knowledge and potentially lead to valuable new treatments for addiction.

Bogenschutz, M. P., & Johnson, M. W. (2015). Classic hallucinogens in the treatment of addictions. Progress in Neuro-Psychopharmacology and Biological Psychiatry. http://dx.doi.org/10.1016/j.pnpbp.2015.03.002
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Psychedelics not linked to mental health problems or suicidal behavior: A population study

March 5, 2015 / Anxiety Disorders / PTSD, Depressive Disorders, LSD, Mescaline / Cacti, Mushrooms / Psilocybin, Papers, Psychology, Psychotic Disorders, Publications, Substance Use Disorder / By / ,

Abstract

A recent large population study of 130,000 adults in the United States failed to find evidence for a link between psychedelic use (lysergic acid diethylamide, psilocybin or mescaline) and mental health problems. Using a new data set consisting of 135,095 randomly selected United States adults, including 19,299 psychedelic users, we examine the associations between psychedelic use and mental health. After adjusting for sociodemographics, other drug use and childhood depression, we found no significant associations between lifetime use of psychedelics and increased likelihood of past year serious psychological distress, mental health treatment, suicidal thoughts, suicidal plans and suicide attempt, depression and anxiety. We failed to find evidence that psychedelic use is an independent risk factor for mental health problems. Psychedelics are not known to harm the brain or other body organs or to cause addiction or compulsive use; serious adverse events involving psychedelics are extremely rare. Overall, it is difficult to see how prohibition of psychedelics can be justified as a public health measure.

Johansen, P. Ø., & Krebs, T. S. (2015). Psychedelics not linked to mental health problems or suicidal behavior: A population study. Journal of Psychopharmacology. https://dx.doi.org/10.1177/0269881114568039
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What Can Neuroscience Tell Us About the Potential of Psychedelics in Healthcare?

February 23, 2015 / Ayahuasca, DMT, Iboga / Ibogaine, Ketamine, LSD, MDMA, Mescaline / Cacti, Mushrooms / Psilocybin, Neuroscience, Papers, Psychology, Publications / By /

Abstract

Health-related psychedelic research should focus on helping us flourish, not just remedying ill-health or addiction. We don’t know enough about how psychedelics could enhance human flourishing. Factors promoting health-through-flourishing include finding meaning in life, spiritual practices, comfortable levels of social bonds, emotionally/physically satisfying sex in a long-term monogamous relationship and control over one’s daily life. Psychedelic research could find more.Neuroscience anchors psychedelic research into disease and disorder, e.g. addiction, PSTD, migraine, anxiety, pain etc. Neurophenomenological psychedelics research could illuminate relationships between health, ASC/NOSCs and cognitive liberty to promote human flourishing. If we accept the self as an epiphenomenon of subsystems within the brain, we ‘know’ ‘unconsciously’, but are not aware of, many things which affect our lives profoundly. These include control over identifying, remembering and forgetting our states of mind and how to move between them. A prerequisite for integrated investigations into ASC/NOSCs is the establishment of a taxonomic knowledge base which lists, categorises and characterises ASC/NOSCs to enable us to choose specific states of mind and move securely among them. Or, in other words, to enable us to exercise our cognitive liberty safely.

I believe that human health and flourishing would be enhanced were we able to direct our states of being by consciously choosing them. Given the promise of mindfulness techniques to enhance our health, happiness and spiritual growth, constructing both personal and generic classifications of salient ASC/NOSCs makes sense. Laws need to change. The neuroscience of pleasure, love, spirituality, decision-making, pattern recognition and location of meaning should inform health-enhancing psychedelic research while promoting flourishing through cognitive liberty.

As part of cognitive liberty, our end-of-life choices should include how we die. In other words, our idea of the good death should include access to psychedelics. Dying high is increasingly likely to become a popular choice as baby boomers age and place their economic clout behind the reform of end-of-life laws as well as drug laws. Achieving such crucial legal changes depends partly on the ability to produce research to anchor evidence based law and policy. Research into psychedelics, ASC/NOSCs and the neurobiology of the dying process is essential.

Mackenzie, R. (2015). What can neuroscience tell us about the potential of psychedelics in healthcare? How the Neurophenomenology of Psychedelics Research Could Help us to Flourish Throughout Our Lives, as Well as to Enhance Our Dying. Current Drug Abuse Reviews, 7(3), 136-144. http://dx.doi.org/10.2174/1874473708666150107114927
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Peak experiences and the afterglow phenomenon: When and how do therapeutic effects of hallucinogens depend on psychedelic experiences?

February 9, 2015 / Anxiety Disorders / PTSD, Depressive Disorders, Headache Pain and Neurological Disorders, Ketamine, LSD, Mescaline / Cacti, Mushrooms / Psilocybin, Neuroscience, Papers, Psychology, Publications, Substance Use Disorder / By / , ,

Abstract

Interest in the therapeutic potential of psychedelic substances has recently resumed. During an early phase of human psychedelic research, their therapeutic application in different pathologies had been suggested, and the first evidence for efficacy was provided. The range of recent clinical applications of psychedelics spans from cluster headaches and obsessive-compulsive disorder to addiction and the treatment of fear and anxiety in patients suffering from terminal illness, indicating potentially different therapeutic mechanisms. A variety of approaches in psychotherapy emphasize subjective experiences, such as so-called peak experiences or afterglow phenomena, as differentially mediating therapeutic action. This review aims to re-evaluate earlier and recent concepts of how psychedelic substances may exert beneficial effects. After a short outline of neurophenomenological aspects, we discuss different approaches to how psychedelics are used in psychotherapy. Finally, we summarize evidence for the relationship between subjective experiences and therapeutic success. While the distinction between pharmacological and psychological action obviously cannot be clear-cut, they do appear to contribute differently from each other when their effects are compared with regard to pathologies.

Majić, T., Schmidt, T. T., & Gallinat, J. (2015). Peak experiences and the afterglow phenomenon: When and how do therapeutic effects of hallucinogens depend on psychedelic experiences? Journal of Psychopharmacology. https://dx.doi.org/10.1177/0269881114568040
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Editorial (Thematic Issue: Introduction to ‘Beneficial Effects of Psychedelics with a Special Focus on Addictions’)

January 28, 2015 / Ayahuasca, DMT, Iboga / Ibogaine, LSD, MDMA, Mescaline / Cacti, Mushrooms / Psilocybin, Neuroscience, Papers, Philosophy & Religious Studies, Psychiatry & Medicine, Psychology, Psychotic Disorders, Publications, Salvia / Salvinorin A, Substance Use Disorder / By / ,

Editorial

Introduction to ‘Beneficial Effects of Psychedelics with a Special Focus on Addictions’

We are witnessing a revival of psychedelic research. An increasing number of studies investigating the therapeutic use of psychedelics are currently underway at some of the most renowned universities. Dedicating a second issue of ‘Current Drug Abuse Reviews’ to psychedelics aims to keep up with this blossoming field. With the availability of modern scientific instruments, psychedelic research is once again gaining a firm foothold in academia.

The idea of this special issue originated at the Interdisciplinary Conference on Psychedelic Research, organised by the OPEN Foundation in 2012. OPEN was founded in 2007 in the Netherlands, in order to stimulate and advance scientific research into psychedelics. This special issue of CDAR takes an interdisciplinary approach to the topic of psychedelics and mental health, while maintaining a particular focus on applications of psychedelics in the fields of substance abuse and addiction. This special issue also takes a critical look at some widespread assumptions about psychedelics, introduces new ideas and suggests novel directions for future research.

Kortekaas, R., & Breeksema, J. J. (2015). Introduction to ‘Beneficial Effects of Psychedelics with a Special Focus on Addictions’. Current Drug Abuse Reviews, 7(2), 69-70. https://dx.doi.org/10.2174/1874473708666150120114604

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Articles in this special issue:

Editorial (Thematic Issue: Introduction to ‘Beneficial Effects of Psychedelics with a Special Focus on Addictions’)
Ayahuasca, Psychedelic Studies and Health Sciences: The Politics of Knowledge and Inquiry into an Amazonian Plant Brew
Crisis Intervention Related to the Use of Psychoactive Substances in Recreational Settings – Evaluating the Kosmicare Project at Boom Festival
Psychedelics as Medicines for Substance Abuse Rehabilitation: Evaluating Treatments with LSD, Peyote, Ibogaine and Ayahuasca
A Qualitative Report on the Subjective Experience of Intravenous Psilocybin Administered in an fMRI Environment
Salvinorin A and Related Compounds as Therapeutic Drugs for Psychostimulant-Related Disorders

Editorial (Thematic Issue: Introduction to 'Beneficial Effects of Psychedelics with a Special Focus on Addictions')

January 28, 2015 / Ayahuasca, DMT, Iboga / Ibogaine, LSD, MDMA, Mescaline / Cacti, Mushrooms / Psilocybin, Neuroscience, Papers, Philosophy & Religious Studies, Psychiatry & Medicine, Psychology, Psychotic Disorders, Publications, Salvia / Salvinorin A, Substance Use Disorder / By / ,

Editorial

Introduction to ‘Beneficial Effects of Psychedelics with a Special Focus on Addictions’

We are witnessing a revival of psychedelic research. An increasing number of studies investigating the therapeutic use of psychedelics are currently underway at some of the most renowned universities. Dedicating a second issue of ‘Current Drug Abuse Reviews’ to psychedelics aims to keep up with this blossoming field. With the availability of modern scientific instruments, psychedelic research is once again gaining a firm foothold in academia.

The idea of this special issue originated at the Interdisciplinary Conference on Psychedelic Research, organised by the OPEN Foundation in 2012. OPEN was founded in 2007 in the Netherlands, in order to stimulate and advance scientific research into psychedelics. This special issue of CDAR takes an interdisciplinary approach to the topic of psychedelics and mental health, while maintaining a particular focus on applications of psychedelics in the fields of substance abuse and addiction. This special issue also takes a critical look at some widespread assumptions about psychedelics, introduces new ideas and suggests novel directions for future research.

Kortekaas, R., & Breeksema, J. J. (2015). Introduction to ‘Beneficial Effects of Psychedelics with a Special Focus on Addictions’. Current Drug Abuse Reviews, 7(2), 69-70. https://dx.doi.org/10.2174/1874473708666150120114604

Link to full text

Articles in this special issue:

Editorial (Thematic Issue: Introduction to ‘Beneficial Effects of Psychedelics with a Special Focus on Addictions’)
Ayahuasca, Psychedelic Studies and Health Sciences: The Politics of Knowledge and Inquiry into an Amazonian Plant Brew
Crisis Intervention Related to the Use of Psychoactive Substances in Recreational Settings – Evaluating the Kosmicare Project at Boom Festival
Psychedelics as Medicines for Substance Abuse Rehabilitation: Evaluating Treatments with LSD, Peyote, Ibogaine and Ayahuasca
A Qualitative Report on the Subjective Experience of Intravenous Psilocybin Administered in an fMRI Environment
Salvinorin A and Related Compounds as Therapeutic Drugs for Psychostimulant-Related Disorders

Psychedelics as Medicines for Substance Abuse Rehabilitation: Evaluating Treatments with LSD, Peyote, Ibogaine and Ayahuasca

January 28, 2015 / Ayahuasca, Iboga / Ibogaine, LSD, Mescaline / Cacti, Neuroscience, Papers, Psychology, Publications, Substance Use Disorder / By /

Abstract

Substances known as psychedelics, hallucinogens and entheogens have been employed in ethnomedical traditions for thousands of years, but after promising uses in the 1950’s and 1960’s they were largely prohibited in medical treatment and human research starting in the 1970’s as part of the fallout from the war on drugs. Nonetheless, there are a number of studies which suggest that these substances have potential applications in the treatment of addictions. While these substances are generally classified as Schedule I, alleging no established medical uses and a high drug abuse potential, there is nonetheless evidence indicating they might be safe and effective tools for short term interventions in addictions treatment. Evidence suggests that the psychedelics have a much greater safety profile than the major addictive drugs, having extremely low levels of mortality, and producing little if any physical dependence. This paper reviews studies evaluating the use of LSD, peyote, ibogaine and ayahuasca in the treatment of dependencies and the possible mechanisms underlying the indications of effectiveness. Evidence suggests that these substances help assist recovery from drug dependency through a variety of therapeutic mechanisms, including a notable “after-glow” effect that in part reflects their action on the serotonin neurotransmitter system. Serotonin has been long recognized as central to the psychedelics’ well-known phenomenological, physical, emotional and cognitive dynamics. These serotonin-based dynamics are directly relevant to treatment of addiction because of depressed serotonin levels found in addict populations, as well as the role of serotonin as a neuromodulators affecting many other neurotransmitter systems.

Winkelman, M. (2015). Psychedelics as Medicines for Substance Abuse Rehabilitation: Evaluating Treatments with LSD, Peyote, Ibogaine and Ayahuasca. Current Drug Abuse Reviews, 7(2), 101-116. https://dx.doi.org/10.2174/1874473708666150107120011

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Classic psychedelic use is associated with reduced psychological distress and suicidality in the United States adult population

January 13, 2015 / Anxiety Disorders / PTSD, Ayahuasca, Depressive Disorders, DMT, LSD, MDMA, Mescaline / Cacti, Mushrooms / Psilocybin, Papers, Psychology, Publications / By / , , , ,

Abstract

Mental health problems are endemic across the globe, and suicide, a strong corollary of poor mental health, is a leading cause of death. Classic psychedelic use may occasion lasting improvements in mental health, but the effects of classic psychedelic use on suicidality are unknown. We evaluated the relationships of classic psychedelic use with psychological distress and suicidality among over 190,000 USA adult respondents pooled from the last five available years of the National Survey on Drug Use and Health (2008–2012) while controlling for a range of covariates. Lifetime classic psychedelic use was associated with a significantly reduced odds of past month psychological distress (weighted odds ratio (OR)=0.81 (0.72–0.91)), past year suicidal thinking (weighted OR=0.86 (0.78–0.94)), past year suicidal planning (weighted OR=0.71 (0.54–0.94)), and past year suicide attempt (weighted OR=0.64 (0.46–0.89)), whereas lifetime illicit use of other drugs was largely associated with an increased likelihood of these outcomes. These findings indicate that classic psychedelics may hold promise in the prevention of suicide, supporting the view that classic psychedelics’ most highly restricted legal status should be reconsidered to facilitate scientific study, and suggesting that more extensive clinical research with classic psychedelics is warranted.

Hendricks, P. S., Thorne, C. B., Clark, C. B., Coombs, D. W., & Johnson, M. W. (2015). Classic psychedelic use is associated with reduced psychological distress and suicidality in the United States adult population. Journal of Psychopharmacology. https://dx.doi.org/10.1177/0269881114565653

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Can psychedelic compounds play a part in drug dependence therapy?

January 5, 2015 / Ayahuasca, Iboga / Ibogaine, Ketamine, LSD, Mescaline / Cacti, Mushrooms / Psilocybin, Papers, Psychology, Publications, Substance Use Disorder / By / ,

Abstract

After a 40-year hiatus there is now a revisiting of psychedelic drug therapy throughout psychiatry, with studies examining the drugs psilocybin, ketamine, ibogaine and ayahuasca in the treatment of drug dependence. Limitations to these therapies are both clinical and legal, but the possibility of improving outcomes for patients with substance dependency imposes an obligation to research this area.

Sessa, B., & Johnson, M. W. (2015). Can psychedelic compounds play a part in drug dependence therapy? The British Journal of Psychiatry, 206, 1-3. https://dx.doi.org/10.1192/bjp.bp.114.148031

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