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Ayahuasca: all studies

Page 87 of 167: studies 861 to 870 of 1,662, newest first. Back to the ayahuasca overview

Research

Human Psychopharmacology of Hoasca, A Plant Hallucinogen Used in Ritual Context in Brazil

The Journal of Nervous and Mental Disease February 1, 1996 Charles S. Grob, Dennis J. Mckenna, James C. Callaway et al. 333 citations

A multinational, collaborative, biomedical investigation of the effects of hoasca (ayahuasca), a potent concoction of plant hallucinogens, was conducted in the Brazilian Amazon during the summer of 1993. This report describes the psychological assessment of 15 long-term members of a syncretic church that utilizes hoasca as a legal, psychoactive sacrament as well as 15 matched controls with no...

The union of the vegetable: the ritualised use of hoasca tea

Psychiatric Bulletin May 1, 1995 Eliseu Labigalini, John E. Dunn 2 citations

In the Amazon rainforest there grow two plants: the mariri (Banisteriopsi caapi) and the chacrona (Psychotria viridis), which have been used by native Indians for hundreds of years to make an infusion. The infusion, known as ‘hoasca tea’, is no ordinary herbal brew but one with psychoactive properties. The leaves of these plants contain dimethyltryptamine (DMT), which has hallucinogenic...

Platelet serotonin uptake sites increased in drinkers ofayahuasca

Psychopharmacology November 1, 1994 James C. Callaway, Mauno M. Airaksinen, Dennis J. Mckenna et al. 79 citations

The binding of [3H]citalopram to the platelet 5-hydroxytryptamine (5-HT) transporter was measured in a group of healthy male drinkers of ayahuasca, a psychoactive sacrament indigenous to Amazonia, and a group healthy male controls. An increased number of binding sites (Bmax) in the platelets of ayahuasca drinkers was found, while the dissociation constant (Kd) remained the same for both groups....

DOI: 10.1007/bf02245347 (opens in new tab) Ayahuasca Citalopram Serotonin transporter Platelet +5

Sociopsychotherapeutic Functions of Ayahuasca Healing in Amazonia

Journal of Psychoactive Drugs 1989 Walter Andritzky 59 citations

The social and psychotherapeutic functions of healing rituals with ayahuasca among Amazonian groups are examined, and their healing effectiveness is explained in terms of Western scientific and sociopsychotherapeutic perspectives. The article includes an overview of the preparation and application of ayahuasca, the symbolic adaptations to the process of social change, the role of singing, the...

DOI: 10.1080/02791072.1989.10472145 (opens in new tab) Ayahuasca Vision Transcendental number Psychotherapist +1

Monoamine oxidase inhibitors in South American hallucinogenic plants: Tryptamine and β-carboline constituents of Ayahuasca

Journal of Ethnopharmacology April 1, 1984 Dennis J. Mckenna, G.h.n. Towers, F. S. Abbott 399 citations

Ayahuasca is a hallucinogenic beverage derived by boiling the bark of the Malpighiaceous liana Banisteriopsis caapi together with the leaves of various admixture plants, viz. Psychotria viridis, Psychotria carthagenensis , or Diplopterys cabrerana . B. caapi contains harmine, harmaline, and tetrahydroharmine while the admixtures contain N,N-dimethyltryptamine (DMT). DMT, a potent hallucinogen,...

A Note on the Use of Ayahuasca among Urban Mestizo Populations in the Peruvian Amazon1

American Anthropologist December 1, 1970 Marlene Dobkin De Rios 17 citations

The use of the psychedelic vine, ayahuasca (various Banisteriopsis species), in the Peruvian Amazon by mestizo folk healers is related to such variables as cultural expectations of drug experience and belief systems concerning illness. A subjective personal experience inherent in psychedelic use takes on cultural coloration, as determinants of hallucinatory experience show strong relationships...

Efeitos Cardiovasculares, Renais e Hepáticos Produzidos pela Administração Crônica de Ayahuasca em Ratos Hipertensos/Cardiovascular, Renal and Hepatic Effects Produced by Chronic Administration of Ayahuasca in Hypertensive Rats

REVISTA CIÊNCIAS EM SAÚDE 1970 Aline Cunha Santos, Barbra Rafaela de Melo Santos Azevedo, Nara Kobbaz Pereira et al.

Objetivo: Avaliar os efeitos cardiovasculares, renais e hepáticos produzidos pela administração crônica de Ayahuasca em ratos hipertensos. Materiais e Métodos: Foram utilizados 27 ratos machos Wistar adultos. Realizou-se nefrectomia unilateral com compressão do parênquima renal, segundo o modelo de Grollman, para induzir hipertensão. Os ratos hipertensos foram divididos em 4 grupos, com os...

Acute Psychological Adverse Reactions in First-Time Ritual Ayahuasca Users: A Prospective Case Series.

Journal of Clinical Psychopharmacology María Gómez-sousa, Daniel Jiménez‐garrido, Genís Ona et al. 24 citations

In recent decades, ritualistic use of ayahuasca has spread throughout the world. Retrospective studies have suggested a good psychological safety profile, but prospective studies involving ceremony ayahuasca-naive participants are lacking. We conducted the study using a subsample from a previous study, for which first-time ceremony ayahuasca participants were recruited. The subsample consisted...

Ayahuasca: What Healthcare Providers Need to Know.

Journal of Addictions Nursing Deana Goldin, Deborah Salani 2 citations

Ayahuasca is a pan-Amazonian botanical hallucinogenic decoction made from a mixture of the bark of the Banisteriopsis caapi plant, containing a monoamine oxidase inhibitor, and Psychotria viridis (Rubiaceae) or Diplopterys cabrerana shrubs containing a serotonergic 2A receptor agonist, N,N-dimethyltryptamine, a powerful psychoactive substance. Ayahuasca is a traditional psychoactive sacrament...