Producción científica en Scopus sobre el uso de ayahuasca en la salud humana: Estudio Bibliométrico

Introducción: La ayahuasca (también llamada huasca, oasca, caapi o yagé) es un brebaje de uso tradicional, con efectos psicoactivos de interés en la salud humana. Esta situación crea la necesidad de generar conocimiento científico para identificar vacíos en el conocimiento y prioridades en investigación. Objetivo: Describir la producción científica sobre el uso de ayahuasca en seres humanos publicada en revistas indizadas en Scopus hasta octubre del 2021. Métodos: Estudio bibliométrico de bases de datos secundarias. Se realizó una búsqueda sistemática de información en Scopus de publicaciones científicas sobre el uso de Ayahuasca en problemas de salud. Se recolectó información sobre el año de publicación, idioma de publicación, áreas de conocimiento estudiadas, diseños de investigación involucrados, revista de publicación, proporciones de colaboración internacional, redes de colaboración interinstitucional, redes de coautoría, citas por documento y se describieron a los autores más productivos. Resultados: La tendencia de publicaciones fue creciente desde el 2012. El 36,8% de investigaciones se basaron en diseños observacionales. El promedio de citas por artículo fue 6,1 y el promedio de citas por año fue 3,9. Todas las publicaciones de Suiza, China, Nueva Zelanda y Perú tuvieron colaboración internacional; con cuatro conglomerados de cooperación. Conclusión: La producción científica sobre el uso de ayahuasca en la salud tiene una tendencia creciente, con preferencia en diseños observacionales, con una alta presencia de colaboración internacional y redes de colaboración institucional y de autores.

Introduction: Ayahuasca (also called huasca, oasca, caapi or yagé) is a concoction of traditional use, with psychoactive effects of interest in human health. This situation creates the need to generate scientific knowledge to identify gaps in knowledge and research priorities. Objective: To describe the impact of scientific production on the use of Ayahuasca in human health published in journals indexed in Scopus until October 2021. Methods: Bibliometric study of secondary databases. A systematic search of information was carried out in Scopus, in order to identify original articles that investigated the use of Ayahuasca in health problems. Information was collected on the year of publication, language of publication, areas of knowledge studied, research designs involved, journal of publication, proportions of international collaboration, inter-institutional collaboration networks, co-authorship networks, citations per document and the authors were described. more productive. Results: The trend of publications has been increasing since 2012. 36.8% of investigations were based on observational designs; with an average number of citations per article of 6.1 and an average number of citations per year of 3.9. All publications from Switzerland, China, New Zealand and Peru had international collaboration; with four cooperation conglomerates. Conclusion: The scientific production on the use of Ayahuasca in health has a growing trend, preferably in observational designs, with high international collaboration and institutional collaboration networks and authors.

Hiponatremia grave secundaria a la exposición a veneno de Phyllomedusa Bicolor (Rana Kambó): caso clínico / Severe hyponatremia secondary to Phyllomedusa bicolor (Kambó frog) poisoning: report of one case

Phyllomedusa bicolor or Kambo is a frog that lives in the Amazon rainforest. It can release through its skin a substance used in healing rituals that are common among South-American tribes, as well as in urban people of America and Europe. We report a 41-year-old female patient who, during a healing ritual consumed ayahuasca (a drink obtained from the mixture of Banisteriopsis caapi, Psychotria viridis and Mimosa hostilis) and 12 hours later received the poison of Kambo Frog (Phyllomedusa bicolor) on superficial right shoulder skin burns. The ritual included a minimum of six-liter water intake over a few hours period. She evolved with clouding of sensorium, motor agitation, frequent vomiting, and generalized tonic-clonic seizures. She presented lethargic to the emergency room, with a weak pupillary light reflex, generalized stiffness, moving all four limbs. Laboratory showed severe hyponatremia (120 mEq/L) and a creatine kinase level of 8,479 UI/L, that increased 107,216 IU/L within few days. An admission CT Brain scan was normal. The toxicological screening did not identify the presence of other substances. During hospitalization the patient developed severe psychomotor agitation controlled by a dexmedetomidine infusion, hyponatremia, low plasma osmolality (248 mOsm/kg), and disproportionately high urinary osmolality (448 mOsm/kg), suggestive of inappropriate antidiuretic hormone secretion syndrome (SIADH). With correction of hyponatremia, the patient gradually recovered consciousness. Rhabdomyolysis was assumed to be secondary to seizure and managed by volume and bicarbonate infusions with a positive response.

Chronic intermittent exposure to ayahuasca during aging does not affect memory in mice

The Quechua term ayahuasca refers to a beverage obtained from decoctions of the liana Banisteriopsis caapi with leaves of Psychotria viridis. The ritualistic use of ayahuasca is becoming a global phenomenon, with some individuals using this beverage throughout life, including in old age. Cognitive impairment is a common manifestation during aging. There are conflicting reports on the ability of some ayahuasca compounds to exert neuroprotective or neurotoxic effects that could improve or impair learning and memory. Animal models provide a relevant and accessible means of investigating the behavioral effects of ayahuasca without the environmental conditions associated with the ritualistic use of the beverage. In this study, we investigated the influence of chronic ayahuasca exposure throughout aging on the spatial reference and habituation memories of mice. Twenty-eight male c57bl/6 mice (6 months old) received ayahuasca or water (1.5 mL/kg, orally) twice a week for 12 months and were tested in the Morris water maze (MWM), open field and elevated plus maze (EPM) tasks before and after treatment. During aging, there was significant impairment in the evocation (but not acquisition) of spatial reference memory and in habituation to the open field. There was also a decrease in locomotor activity in the open field and EPM tests, whereas the anxiety parameters were unaltered. Ayahuasca treatment did not alter any of these parameters associated with aging. These findings indicate that chronic exposure to ayahuasca during aging did not affect memory in mice.

An ontogenic study of the behavioral effects of chronic intermittent exposure to ayahuasca in mice

Ayahuasca is a beverage obtained from decoctions of the Banisteriopsis caapi plus Psychotria viridis. In religious contexts, ayahuasca is used by different age groups. However, little is known of the effects of ayahuasca during ontogenic development, particularly with regard to the functional characteristics of the central nervous system. Animal models are useful for studying the ontogenic effects of ayahuasca because they allow exclusion of the behavioral influence associated with the ritualistic use. We investigated the effects of exposure to ayahuasca (1.5 mL/kg, orally, twice a week) on memory and anxiety in C57BL/6 mice, with the post-natal day (PND) being used as the ontogenic criterion for classification: childhood (PND21 to PND35), adolescence (PND35 to PND63), adulthood (PND90-PND118), childhood-adolescence (PND21 to PND63), childhood-adulthood (PND21 to PND118) and adolescence-adulthood (PND35 to PND118). One day after the last ayahuasca exposure, the mice were subjected to the Morris water maze (MWM), open field and elevated plus maze tasks (EPM). Ayahuasca did not affect locomotion in the open field or open arms exploration in the EPM, but increased the risk assessment behavior in the childhood group. Ayahuasca did not cause any change in acquisition of spatial reference memory in the MWM task, but decreased the time spent on the platform quadrant during the test session in the adolescence group. These results suggest that, in mice, exposure to ayahuasca in childhood and adolescence promoted anxiety and memory impairment, respectively. However, these behavioral changes were not long-lasting since they were not observed in the childhood-adulthood and adolescence-adulthood groups.

Psicosis inducida por ayahuasca: reporte de un caso / Ayahuasca-induced psychosis: a case report

La ayahuasca es una bebida alucinógena, producto de la decocción de las plantas Banisteriopsis caapi y Psychotria viridis y que cuenta con N,N-dimetiltriptamina y ß-carbolinas, como sus compuestos principales. Aunque produce alteraciones somáticas, cognitivas y subjetivas agudas, a menudo intensas, casi no se han reportado efectos adversos luego de un cuadro de intoxicación con este agente. En este artículo se presenta el caso de un varón de 40 años, procedente de la Amazonía peruana, que siguió un curso psicótico tras una sesión ritual de consumo; el episodio psicótico se resolvió favorablemente con tratamiento específico. Aun cuando infrecuentes, estos episodios pueden llegar a ser muy severos y asociarse a conductas violentas. Los usuarios con antecedentes de psicosis, manía o abuso de sustancias psicoactivas parecen estar en mayor riesgo. La literatura en relación al riesgo de reacciones adversas (incluidas conductas psicóticas) debidas al uso de ayahuasca, es escasa y poco concluyente por lo que casos similares al descrito deben evaluarse cuidadosamente y difundirse de manera apropiada. (AU)

Efecto de la ingestión de Banisteriopsis caapi y Psychotria viridis 'Binomio ayahuasca' en el hipocampo del cerebro de ratas / Effect of Banisteriopsis caapi and Psychotria viridis "Binomio ayahuasca" ingestion in the rat hippocampus

Objetivo: Evaluar el efecto de la ingestión de Banisteriopsis caapi y Psychotria viridis 'Binomio ayahuasca' en el hipocampo de cerebro de ratas. Diseño: Estudio experimental, descriptivo, analítico, transversal. Institución: Instituto de Investigación en Ciencias Farmacéuticas y Recursos Naturales, Facultad de Farmacia y Bioquímica, Universidad Nacional Mayor de San Marcos, Lima, Perú. Material biológico: Ratas. Intervenciones: Administración del binomio ayahuasca por vía orogástrica a ratas albinas adultas de la especie Rattus novergicus y de cepa Holtzman. A siete grupos de cinco con un peso promedio de 240 ± 30 g se les administró (GI) blanco, (GII) 2,5 mL diazepam, (GIII) 0,7 mL solución de Banisteriopsis caapi, (GIV) 0,7 mL Psychotria viridis, y a los grupos (GV), (GVI) y (GVII) se administró 0,7 mL, 3,5 mL y 7,0 mL de solución del binomio ayahuasca, respectivamente. Principales medidas de resultados: Macroscópicos: comportamiento de reflejos y actividad motora. Microscópicos: número de células piramidales y granulosas, y desorganización celular. Resultados: En el tamizaje fitoquímico del extracto se caracterizó presencia de alcaloides, antraquinonas, triterpenoides y esteroides, fenoles, flavonoides y saponinas. Los volúmenes de droga administradas a los grupos de intervención con el binomio en la dosis de 0,7 mL manifestaron significativo aumento en el número de células granulosas sobre las células piramidales; a dosis de 3,5 mL el número de células granulosas fue menor con presencia de células piramidales grandes y pequeñas; y a dosis de 7,0 mL se manifestó desorganización celular, presencia de células piramidales grandes y pequeñas, y aumento de células granulosas. Conclusiones: El extracto alcohólico del binomio ayahuasca presenta efecto neuropatológico en el hipocampo del cerebro de ratas. (AU)

Assessment of antimicrobial activity in vitro of ethanolic extracts of Banisteriopsis anisandra (A. Juss. ) B. Gates (Malpighiaceae) / Avaliação da atividade antimicrobiana in vitro de extratos etanólicos de Banisteriopsis anisandra (A. Juss. ) B. Gates (Malpighiaceae)

The aim of this study was to evaluate the antimicrobial activity in vitro of ethanolic extracts of Banisteriopsis anisandra. Tests were performed using the extracts overlay method in the culture medium for phytopathogenic fungi Rhizoctonia solani and Fusarium oxysporum, and disk diffusion for the microorganisms Staphylococcus aureus and Candida albicans. Ethanolic extracts from leaves were prepared by maceration (extract I) and decoction (extract II) at 430.0, 215.0 and 107.5 mg/mL. The growth inhibition of R. solani and F. oxysporum was determined by calculating the mycelia growth speed rate (MGSR) and, in relation C. albicans and S. aureus, it was determined by measuring the inhibition halos. Extracts that caused significant inhibition were also tested at 86.0, 64.5, 43.0 and 21.5 mg/mL for C. albicans and S. aureus. Both extracts showed inhibitory activity on the microorganisms studied. Rizoctonia solani showed lower MGSR in the presence of extract II (107.5 mg/mL) and Fusarium oxysporum showed slight MGSR reduction in the presence of extract I (107.5 mg/mL) and II (107.5 and 215 mg/mL). Ethanolic extracts I and II inhibited the growth of C. albicans, with the highest rates of inhibition observed in the presence of extract II (215.0 mg/mL). For S. aureus, the highest inhibitory activity was observed in the presence of ethanolic extract II, prepared by decoction at 430.0 mg/mL. Results showed a promising antimicrobial activity of extracts of B. anisandra, which may contribute to further studies leading to a future development of medicines to treat human and plant diseases caused by these organisms.

O objetivo deste estudo foi avaliar a atividade antimicrobiana in vitro de extratos etanólicos de Banisteriopsis anisandra. Os testes foram realizados utilizando o método de sobreposição de extratos em meio de cultura para fungos fitopatogênicos Rhizoctonia solani e Fusarium oxysporum e de difusão em disco para os microrganismos Staphylococcus aureus e Candida albicans. Foram testados de extratos etanólicos de folhas preparados por maceração (extrato I) e decocção (extrato II), nas concentrações de 430,0; 215,0 e 107,5 mg/mL. A inibição do crescimento de R. solani e F. oxysporum foi determinada pelo cálculo do índice de velocidade de crescimento micelial (IVCM) e de C. albicans e S. aureus, por meio da medida da halos de inibição. Os extratos que causaram inibição significativa também foram testados nas concentrações de 86,0; 64,5; 43,0 e 21,5 mg/mL para C. albicans e S. aureus. Ambos os extratos mostraram atividade inibitória sobre os microrganismos estudados. Rizoctonia solani apresentou menor IVCM na presença do extrato II (107,5 mg/mL) e Fusarium oxysporum apresentou discreta redução no IVCM na presença do extrato I (107,5 mg/mL) e II (107,5 e 215 mg/mL). Extratos etanólicos I e II inibiram o crescimento de C. albicans, com as maiores taxas de inibição observadas na presença do extrato II (215,0 mg/mL). Para S. aureus a maior atividade inibitória foi observada na presença do extrato II, na concentração de 430 mg/mL. Os resultados mostraram promissora atividade antimicrobiana de extratos de B. anisandra, o que pode contribuir para estudos futuros visando o desenvolvimento de medicamentos para doenças humanas e de plantas causadas por estes microrganismos.

Caracterización fitoquímica y de las actividades antibacterianas y anticolinesterasa de Banisteriopsis anisandra A. Juss. (Malpighiaceae) / Caracterização fitoquímica e avaliação das atividades antibacteriana e anticolinesterásica de extratos de Banisteriopsis anisandra A. Juss. (Malpighiaceae)

Introdução: o uso de plantas para fins medicinais vem crescendo a cada dia. A partir de métodos extrativos, podem-se obter extratos com diferentes atividades terapêuticas, dentre elas ação antifúngica, anticolinesterásica, antitussígena e antibacteriana, esta última, por sua vez, de grande importância comercial em vista do crescimento gradativo de casos de infecções por bactérias resistentes aos tratamentos convencionais. Objetivos: caracterizar químicamente os extratos foliares de B. anisandra, uma vez que não há relatos sobre a mesma na literatura e verificar as atividades anticolinesterásica e antibacteriana destes frente às bactérias patogênicas. Métodos: os extratos obtidos a partir de hexano, clorofórmio, acetato de etila e metanol tiveram as classes fitoquímicas presentes identificadas através de métodos de identificação clássica, testados frente a bactérias patogênicas Staphylococcus aureus, Streptococcus mutans, Bacillus cereus, Klebsiella pneumoniae, Shigella flexneri, Pseudomonas aeruginosa e avaliados quanto à capacidade de degradação da enzima acetilcolinesterase. Resultados: os resultados encontrados revelaram a diversificação química encontrada em B. anisandra e o potencial farmacotecnológico de seus extratos, especialmente em relação a alcalóides presentes e à sua atividade anticolinesterásica. Conclusão: conclui-se que os extratos de B. anisandra podem ser utilizados para fins farmacotecnológico e que necessita-se de mais estudos fitoquímicos em relação a esta espécie.

Introducción: el uso de plantas con fines medicinales está creciendo cada día. De los métodos de extracción, se pueden obtener extractos con diferentes actividades terapéuticas, entre ellas, antifúngicas, anticolinesterasa, antitusivas y antibacterianas; esta última, a su vez, de gran importancia comercial en vista al aumento gradual de los casos de infecciones por bacterias resistentes a los tratamientos convencionales. Objetivos: caracterizar químicamente los extractos de hojas de B. anisandra, porque no hay reportes en la literatura y verificar las actividades de la acetilcolinesterasa y la actividad antibacteriana frente a bacterias patógenas. Métodos: los extractos obtenidos a partir de la partición con hexano, cloroformo, acetato de etilo y metanol fueron identificados y las clases de fitoquímicos presentes en los extractos mediante métodos de identificación clásica, los cuales fueron probados contra bacterias patógenas de Staphylococcus aureus, Streptococcus mutans, Bacillus cereus, Klebsiella pneumoniae, Shigella flexneri, Pseudomonas aeruginosa, y evaluados por la capacidad de degradación de la enzima acetilcolinesterasa. Resultados: se mostró la diversidad química encontrada en B. anisandra y el potencial farmacotecnológico, especialmente en relación con los alcaloides encontrados y su actividad anticolinesterasa. Conclusiones: los exctratos de B. anisandra se pueden utilizar para fines farmacotecnológicos y se necesitan más estudios fitoquímicos en relación con esta especie.

A Farmacologia da Ayahuasca: uma revisão / The phamacology of ayahuasca: a review

Ayahuasca é uma bebida psicoativa, alucinógena, utilizada por grupos indígenas e não-indígenas com objetivos mágicos, rituais, religiosos, terapêuticos e políticos. O objetivo desta revisão é o de descrever as principais propriedades farmacológicas da ayahuasca. Os potenciais benefícios e riscos do consumo da ayahuasca também serãoabordados.

Ayahuasca is an Amazonian psychoactive, hallucinogenic brew used by indigenous and non-indigenous groups for magical, ritual, religious, therapeutic and political goals. The objective of this review is to describe the main pharmacological properties of ayahuasca. The potential benefits and risks of ayahuasca consumption will also be reviewed.