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1.
J Pharm Pharm Sci ; 27: 12398, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38577255

RESUMO

Bioequivalence (BE) studies are considered the standard for demonstrating that the performance of a generic drug product in the human body is sufficiently similar to that of its comparator product. The objective of this article is to describe the recommendations from participating Bioequivalence Working Group for Generics (BEWGG) members of the International Pharmaceutical Regulators Programme (IPRP) regarding the conduct and acceptance criteria for BE studies of immediate release solid oral dosage forms. A survey was conducted among BEWGG members regarding their BE recommendations and requirements related to study subjects, study design, sample size, single or multiple dose administration, study conditions (fasting or fed), analyte to be measured, selection of product strength, drug content, handling of endogenous substances, BE acceptance criteria, and additional design aspects. All members prefer conducting single dose cross-over designed studies in healthy subjects with a minimum of 12 subjects and utilizing the parent drug data to assess BE. However, differences emerged among the members when the drug's pharmacokinetics and pharmacodynamics become more complex, such that the study design (e.g., fasting versus fed conditions) and BE acceptance criteria (e.g., highly variable drugs, narrow therapeutic index drugs) may be affected. The survey results and discussions were shared with the ICH M13 Expert Working Group (EWG) and played an important role in identifying and analyzing gaps during the harmonization process. The draft ICH M13A guideline developed by the M13 EWG was endorsed by ICH on 20 December 2022, under Step 2.


Assuntos
Medicamentos Genéricos , Projetos de Pesquisa , Humanos , Equivalência Terapêutica
2.
J Pharm Pharm Sci ; 22(1): 486-500, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-33760728

RESUMO

In relation to the registration of generic products, waivers of in vivo bioequivalence studies (biowaivers) are considered in three main cases: certain dosage forms for which bioequivalence is self-evident (e.g. intravenous solutions), biowaivers based on the Biopharmaceutics Classification System and biowaivers for additional strengths with respect to the strength for which in vivo bioequivalence has been shown. The objective of this article is to describe the differences and commonalities in biowaivers for additional strengths of immediate release solid oral dosage forms between the participating members of the International Pharmaceutical Regulators Program (IPRP). The requirements are based on five main aspects; the pharmacokinetics of the drug substance, the manufacturing process, the qualitative and quantitative composition of the different strengths, and the comparative dissolution profiles. For the pharmacokinetic aspects, many regulators/agencies have the same requirements. All strengths must be manufactured with the same process, although a few regulators/agencies accept small differences. In relation to the formulation aspects, the data required breaks down into three major approaches based initially on one of those of the EU, the USA or Japan, but there are some differences in these three major approaches with some country specific interpretations. Most regulators/agencies also have the same requirements for the dissolution data, though there are some notable exceptions.

3.
J Sep Sci ; 41(19): 3669-3676, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-30062775

RESUMO

Organo-silica monolithic capillary columns were prepared using thermally initiated polymerization of mixtures containing 3-(methacryloyloxy)propyltrimethoxysilane as the silicon-containing monomer, an aqueous acid catalyst, ethylene dimethacrylate as the cross-linker, a functional monomer selected from the group comprising octadecyl methacrylate, trifluoroethyl methacrylate, pentafluoropropyl methacrylate, and heptadecafluorodecyl methacrylate, toluene as the porogen, and 2,2'-azobisisobutyronitrile as the initiator. The permeability of the monoliths was controlled by varying the composition of the polymerization mixture. Chromatographic properties of resulting monolithic 100 µm i.d. capillaries were evaluated utilizing four sets of probe compounds under isocratic elution conditions in the reversed-phase mode. Baseline separation of alkylbenzenes and the best steric selectivity were achieved using the octadecyl methacrylate monolithic column verifying that its surface was the most hydrophobic. In contrast, separation of a mixture containing polar compounds was observed using columns prepared in the absence of the functional monomer due to the presence of residual surface silanols at the pore surface. Polyfluoroalkyl stationary phases, especially those with a high number of fluorine atoms, exhibited the highest selectivity towards fluorine-containing analytes.

4.
J Atten Disord ; 26(9): 1199-1211, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-34911376

RESUMO

PUBLIC HEALTH SIGNIFICANCE: Evidence of ADHD symptoms and impairments were documented in the morning and evening hours for individuals diagnosed with ADHD. These results illustrate additional areas in need of attention in the refinement of treatments for adults with ADHD.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade , Adulto , Transtorno do Deficit de Atenção com Hiperatividade/diagnóstico , Humanos
5.
Exp Clin Psychopharmacol ; 29(4): 308-318, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32297783

RESUMO

There has been a lack of research on the third area of impairment noted in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition-"occupational functioning." It is important to understand the impact of common treatments for attention-deficit/hyperactivity disorder (ADHD) in occupational settings. Twenty individuals with ADHD between ages 16 and 25 participated in a double-blind, placebo controlled evaluation of 40 mg lisdexamfetamine dimesylate in a setting designed to approximate a restaurant workplace with associated, simulated food delivery. Outcome measures included ratings of performance, as well as behavioral productivity. Results indicated that participants completed more workplace tasks when on medication, relative to placebo. Ratings of job application quality, job interview performance, and delivery outcomes were not significantly different on medication versus placebo. These results suggest positive effects of medication in a workplace environment, but also a need for study of additional interventions to support workplace-related behavior and functioning. (PsycInfo Database Record (c) 2021 APA, all rights reserved).


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade , Estimulantes do Sistema Nervoso Central , Dimesilato de Lisdexanfetamina , Adolescente , Adulto , Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Estimulantes do Sistema Nervoso Central/uso terapêutico , Dextroanfetamina/uso terapêutico , Relação Dose-Resposta a Droga , Método Duplo-Cego , Humanos , Dimesilato de Lisdexanfetamina/uso terapêutico , Resultado do Tratamento , Adulto Jovem
6.
Clin Ther ; 29(6): 1146-52, 2007 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-17692728

RESUMO

BACKGROUND: Acyclovir is an important antiviral drug, used extensively for treatment of herpes simplex and varicella zoster. Six oral generic formulations of acyclovir are available in Mexico; however, a literature search failed to identify data information concerning the bioavailability of these formulations in the Mexican population. OBJECTIVE: The aim of these 2 studies was to compare the bioavailability of 4 oral formulations of acyclovir 400 mg--2 tablet formulations and 2 suspension formulations--with their corresponding listed drug references in Mexico (a list issued by Mexican Health Authorities). METHODS: Two separate, single-dose, open-label, randomized, 2-period crossover studies were conducted at the Centro de Estudios Científicos y Clínicos Pharma, S.A. de C.V. (clinical unit), Mexico City, Mexico. For each study, a different set of eligible subjects were selected. They included healthy Mexican volunteers of either sex. For each study, subjects were randomly assigned to receive 1 test formulation of acyclovir 400 mg followed by the reference formulation, or vice versa, with a 1-week washout period between doses. After a 12-hour (overnight) fast, subjects received a single 400-mg dose (tablet or 10-mL suspension) of the corresponding formulation. For the analysis of pharmacokinetic properties, including C(max), AUC from time 0 (baseline) to time t (AUC(0-t)), and AUC from baseline to infinity (AUC(0-infinity)), blood samples were drawn at baseline, 0.25, 0.5, 0.75, 1.0, 1.25, 1.5, 1.75, 2, 3, 4, 6, 8, 12, and 24 hours after dosing. The formulations were considered bioequivalent if the natural logarithm (ln)-transformed ratios of Cmax and AUC were within the predetermined equivalence range of 80% to 125% and if P

Assuntos
Aciclovir/farmacocinética , Antivirais/farmacocinética , Aciclovir/administração & dosagem , Aciclovir/efeitos adversos , Administração Oral , Adolescente , Adulto , Antivirais/administração & dosagem , Antivirais/efeitos adversos , Área Sob a Curva , Disponibilidade Biológica , Química Farmacêutica , Cromatografia Líquida de Alta Pressão/métodos , Estudos Cross-Over , Esquema de Medicação , Feminino , Humanos , Masculino , México , Pessoa de Meia-Idade , Valores de Referência , Suspensões , Comprimidos , Fatores de Tempo
7.
Rev. urug. enferm ; 14(1): 19-27, jun 2019.
Artigo em Espanhol | LILACS, BDENF - enfermagem (Brasil), InstitutionalDB | ID: biblio-1009317

RESUMO

En la investigación desarrollada en el salón de Partos del hospital Docente "Eusebio Hernández", se pudo constatar que para el personal de enfermería el cuidado de la mujer en trabajo de parto es un elemento importante para el progreso de la perinatología. El presente trabajo es una investiga-ción de desarrollo tecnológico con el objetivo de identifi car las competencias específi cas del enfer-mero que labora en el salón de partos. Se trabajó con: análisis documental, encuestas a expertos y entrevistas a profesionales de enfermería que laboran en el salón de partos. Se elaboró, a partir de la identifi cación de competencias específi cas para el personal de enfermería que labora en el salón de parto, un mapa para el desarrollo del currículo laboral (mapa DACUM) donde se incluyen las tareas y funciones que debe realizar el personal de enfermería


In the investigation developed in the living room of Childbirths of the Educational hospital Eu-sebio Hernández Pérez, could ascertain that for the personnel of infi rmary the care of the woman in work of childbirth. " e present work is an investigation of technological development with the aim to identify thespecifi c competitions of infi rmary. We worked with: documentary analysis, expert surveys and interviews with nursing professionals who work in the delivery room. It was elaborated, from the identifi cation of specifi c competencies for the nursing staff that works in the delivery room, a map for the development of the labor curriculum (DACUM map) which includes the tasks and func-tions that the nursing staff must perform


Na pesquisa realizada na sala de parto do Hospital Universitário "Eusebio Hernández", consta-tou-se que para a equipe de enfermagem o cuidado da mulher em trabalho de parto é um elemento importante para o progresso da perinatologia. O presente trabalho é uma pesquisa de desenvol-vimento tecnológico com o objetivo de identifi car as competências específi cas do enfermeiro que trabalha na sala de parto. Trabalhamos com: análise documental, pesquisas de especialistas e en-trevistas com profi ssionais de enfermagem que atuam na sala de parto. Foi elaborado, a partir da identifi cação de competências específi cas para a equipe de enfermagem que trabalha na sala de parto, um mapa para o desenvolvimento do currículo de trabalho (mapa DACUM) que inclui as tarefas e funções que a equipe de enfermagem deve realizar.


Assuntos
Humanos , Competência Profissional , Parto , Enfermagem Obstétrica , Prática Profissional , Educação em Enfermagem , Cuidados de Enfermagem
8.
Rev. cuba. plantas med ; 20(4): 478-491, oct.-dic. 2015. tab
Artigo em Espanhol | LILACS, CUMED | ID: lil-771027

RESUMO

INTRODUCCIÓN: Cuba, representada por el Ministerio de Salud Pública y la Unidad de Investigaciones Laboratorio Central de Farmacología, se incorporó a TRAMIL (Programa para la Investigación Aplicada y la Difusión de Plantas Medicinales en el Caribe) en 1988. Ese mismo año participó en el III Taller Científico celebrado en La Habana. Se ha coordinado el Programa Cubano de Investigaciones de Plantas Medicinales (1988-2004) para incorporar el uso de plantas medicinales en el Sistema Nacional de Salud y ejecutado proyectos de colaboración científica conjuntos con resultados publicados. OBJETIVO: valorar la repercusión del intercambio científico entre TRAMIL y el Laboratorio Central de Farmacología, Cuba, durante 25 años. MÉTODOS: se revisaron los principales acontecimientos, los impactos en la difusión y la docencia médica superior, así como los resultados publicados y los incluidos en la Farmacopea Vegetal Caribeña de TRAMIL desde 1988 hasta 2014. RESULTADOS: se expusieron las plantas científicas validadas que han sido incorporadas al Sistema Nacional de Salud cubano, los resultados científicos experimentales, las publicaciones, eventos; se mostraron objetivos del Programa Nacional de Investigaciones de Salud y cómo se insertan los contenidos básicos del uso de plantas medicinales en las Ciencias Médicas y las acciones de difusión. CONCLUSIONES: los datos indican que TRAMIL es una red científica regional bien establecida, útil para los sistemas de salud y las universidades médicas. Ha existido un intercambio científico provechoso para ambas partes, con retroalimentación bilateral durante estos 25 años. Existe un elevado porcentaje de usos tradicionales de plantas, respaldados por evaluaciones experimentales preclínicas, se ratifica la ausencia casi total de toxicidad en las formas de uso tradicional, se manifiestan los impactos en la difusión y la incidencia de los resultados experimentales de los proyectos en las publicaciones.


INTRODUCTION: since 1986, Cuba, represented by Ministry of Public Health of Cuba (MINSAP) and Central Pharmacological Research Unit has joined TRAMIL (Program for Applied Research and Diffusion of Medicinal Plants in the Caribbean). In 1988, the III TRAMIL Scientific Workshop was organized in Havana. We also have coordinated the Medicinal Plant Cuban Research Program (1988-2004) to incorporate medicinal plants in the National Health System. We have performed some scientific projects and there results has been published. OBJECTIVE: to evaluate the impact of scientific exchange between TRAMIL and Central Pharmacological Research Unit, Cuba, for 25 years. METHODS: it was reviewed the most important events, the main impacts in diffusion and higher medical education, as well as our published results and those included in TRAMIL´s Caribbean Herbal Pharmacopoeia during 1988-2014. RESULTS: it was exposed the scientific-validated medicinal plant uses which has been incorporated to Cuban National Health System, the survey TRAMIL and diffusion workshop are analyzing, the results in pharmacological and toxicological studies of different species had been incorporated to Caribbean Herbal Pharmacopoeia. CONCLUSIONS: our data indicate that TRAMIL is a well established regional scientific network which may be useful for health systems and medical universities. There have been an advantageous scientific interchange and two-sided feed back for both organizations during the last 25 years. There is a high percentage of traditional medicinal plant uses which may be supported with preclinical evaluation, the toxicity reaction are almost negative in traditional use forms; some publications shown the impacts in diffusion and experimental project results.


Assuntos
Humanos , Plantas Medicinais , Troca de Informação em Saúde , Medicina Tradicional/métodos , Cuba
9.
Rev. cuba. plantas med ; 19(4): 443-450, out.-dez. 2014. tab, Ilus
Artigo em Espanhol | LILACS, CUMED | ID: lil-750681

RESUMO

INTRODUCCIÓN: el Piper auritum Kunth comúnmente conocido como caisimón de anís, o anisón en algunas regiones del país, es una planta ampliamente utilizada como antiinflamatorio tópico. Tanto la hoja calentada como la decocción aplicada sobre la zona dañada son empleadas por la población con este fin. OBJETIVO: determinar la toxicidad aguda tópica y la irritabilidad dérmica primaria de la decocción al 50 % de hojas frescas de Piper auritum. MÉTODOS: se emplearon hojas frescas colectadas el mismo día del ensayo y se utilizaron las técnicas descritas en las guías de la Organización para la Cooperación Económica y el Desarrollo (OECD), la 434 para la toxicidad dérmica utilizando ratas Wistar, manteniendo la decocción por 24 horas en contacto con la piel previamente afeitada; el peso de los animales fue controlado antes, durante y al concluir el experimento. Y la OECD 404 para la irritabilidad tópica empleando conejos Nueva Zelanda aplicando el extracto por 4 horas a la zona rasurada. RESULTADOS: no se apreciaron signos ni síntomas de toxicidad por la absorción dérmica en las ratas ni se observó evidencia de edema ni eritema en los conejos empleados. CONCLUSIONES: la decocción al 50 % de Piper auritum Kunth posee un índice de irritabilidad y una toxicidad dérmica bajas en nuestras condiciones de ensayo.


INTRODUCTION: Piper auritum Kunth, commonly known as caisimón de anís or anisón in some regions of the country, is a plant widely used as topical anti-inflammatory. To this end, leaves may be warmed up and applied to the damaged area or a decoction prepared and drunk. OBJECTIVE: determine the acute topical toxicity and primary dermal irritability of a 50 % decoction of Piper auritum fresh LEAVES. METHODS: fresh leaves collected on the same day of the assay were used to prepare a decoction, following the techniques described in Guideline 434 of the Organization for Economic Co-operation and Development (OECD 434) about dermal toxicity in Wistar rats. Decoction was kept in contact with previously shaved skin for 24 hours. The weight of animals was controlled before, during and upon completion of the experiment. OECD Guideline 404 was used for topical irritability in New Zealand rabbits, applying the extract to a previously shaved area for 4 hours. RESULTS: no sign or symptom of toxicity due to dermal absorption was observed in the rats. Rabbits did not show any evidence of edema or erythema. CONCLUSIONS: Piper auritum Kunth 50 % decoction has a low irritability and dermal toxicity rate in our test conditions.


Assuntos
Ratos , Plantas Medicinais/toxicidade , Anti-Inflamatórios , Ratos Wistar
10.
Rev. cuba. plantas med ; 19(1): 29-39, ene.-mar. 2014. tab
Artigo em Inglês | LILACS, CUMED | ID: lil-711038

RESUMO

INTRODUCTION: leave decoction of Cordia martinicensis (Jacq.) Roem. & Schult. is commonly used in Dominica, Martinique and St. Lucia to relieve thoracic pain and fever. OBJECTIVES: to validate the antiinflammatory, antinociceptive (analgesic), and antipyretic ethnobotanical uses of Cordia martinicensis in experimental animal models. METHODS: 30 % aqueous extract of Cordia martinicensis dry leaves was prepared just before use. Analgesic activity was assayed by writhing and tail flick, and antiinflammatory activity by the ear oedema test, both in mice. Finally, antipyretic activity was tested by inducing pyrexia with brewer's yeast in rats. RESULTS: decoction of Cordia martinicensis significantly decreased the number of abdominal stretchings by 44.4 %, but it didn't produce a significant antinociceptive response to thermal stimuli. It also displayed strong antiinflammatory activity, the percentage of inhibition was near 60 %, and a dose of 5 mg/kg showed significant antipyretic activity. Cordia martinicensis reacted positively to alkaloids, flavonoids, tannins, and anthocyanidines, and did not show any signs of toxicity. CONCLUSIONS: this is the first report on the activity of Cordia martinicensis directly related to its popular use, and it provides pharmacological validation for the relief of fever, inflammation and pain. Further studies should be done to identify the active principles responsible for the biological activity of the plant.


INTRODUCCIÓN: la decocción de hojas de Cordia martinicensis (Jacq.) Roem. & Schult. muestra un uso tradicional significativo para el alivio del dolor torácico y la fiebre, por parte de la población de Dominica, Martinica y Santa Lucía. OBJETIVOS: validar el uso etnobotánico de Cordia martinicensis en esta región, como antiinflamatorio, antinociceptivo (analgésico) y antipirético, en modelos experimentales en animales. MÉTODOS: el extracto acuoso al 30 % de hojas secas de Cordia martinicensis se preparó justo antes de ser usado. La actividad analgésica fue estudiada mediante el modelo de contorciones abdominales y retirada de la cola en ratones. El efecto antiinflamatorio se evaluó sobre el edema en la oreja del ratón inducido por aceite de Croton.Finalmente, la actividad antipirética del extracto se evaluó mediante la inducción de fiebre en ratas por levadura de cerveza. RESULTADOS: la decocción de Cordia martinicensis disminuyó significativamente el número de contorciones abdominales en 44.4 %, pero no la respuesta al estímulo térmico; en edema en la oreja inhibió la inflamación 60 %, tanto tópico como oral. Resultó capaz de disminuir la fiebre a dosis de 5 mg/kg. Cordia martinicensis contiene alcaloides, flavonoides, taninos, y antocyanidinas y no mostró señales de toxicidad. CONCLUSIONES: constituye el primer estudio de validación del uso tradicional de Cordia martinicensis, avalando el uso farmacológico en procesos de fiebre, dolor e inflamación. Es necesario continuar los estudios fitoquímicos para determinar los principios activos responsables de su actividad biológica.


Assuntos
Humanos , Cordia , Antipiréticos/uso terapêutico , Analgésicos/uso terapêutico , Anti-Inflamatórios/uso terapêutico
11.
Rev. cuba. plantas med ; 19(1): 40-50, ene.-mar. 2014. Ilus
Artigo em Espanhol | LILACS, CUMED | ID: lil-711039

RESUMO

INTRODUCCIÓN: en Cuba y otros países del Caribe se reporta el uso tradicional de plantas medicinales para afecciones como amigdalitis, cefaleas, aftas, picaduras, artritis, entre otras, que tienen entre sus síntomas y signos dolor e inflamación; no existen suficientes estudios de validación preclínica para las preparaciones que se utilizan. OBJETIVOS: evaluar el efecto antiinflamatorio preclínico de preparaciones de 5 plantas medicinales de uso tradicional: Bidens pilosa L. (romerillo), Citrus aurantifolia (Christm) S. (limón), Hyptis verticillata J., Morinda citrifolia L. (noni) y Musa x paradisiaca L. (plátano). MÉTODOS: se empleó el modelo de edema de oreja inducido por aceite de Croton en ratones albinos OF-1 machos (20-25 g), 6 animales por grupo. Se aplicó tópicamente: zumo de partes aéreas frescas de Bidens pilosa(romerillo) y de fruto de Citrus aurantifolia (limón), decocciones al 30 % de partes aéreas secas de Hyptis verticillata, hojas frescas de Morinda citrifolia (noni), y de hojas frescas de Musa x paradisiaca (plátano), 10 µL en cada cara de oreja tratada. Se utilizó como control positivo dexametasona 0,1 mg/oreja. RESULTADOS: se obtuvo una reducción del edema inducido por aceite de Croton con las preparaciones de zumo de Citrus aurantifolia y las decocciones al 30 % de Morinda citrifolia y Musa x paradisiaca; con un considerable porcentaje de inhibición para cada una de ellas. El zumo de Bidens pilosa y la decocción 30 % de Hyptis verticillatano redujeron significativamente la formación del edema. CONCLUSIONES: los resultados experimentales permiten la validación preclínica de la actividad antiinflamatoria del zumo de Citrus aurantifolia y las decocciones a 30 % de Morinda citrifolia y Musa x paradisiaca, así como su empleo tradicional, no siendo así para el zumo de Bidens pilosa y la decocción al 30 % de Hyptis verticillata.


INTRODUCTION: the use of medicinal plants for the treatment of conditions such as tonsilitis, headaches, aphtas, insect bites and arthritis, has been reported in Cuba and other Caribbean countries. Pain and inflammation are among the signs and symptoms of these conditions. There are not enough studies about the preclinical validation of the preparations used. OBJECTIVES: evaluate the preclinical anti-inflammatory effect of preparations from five medicinal plants of traditional use: Bidens pilosa L. (romerillo), Citrus aurantifolia (Christm) S. (lemon), Hyptis verticillata J., Morinda citrifolia L. (noni) and Musa x paradisiaca L. (banana). METHODS: the Croton oil ear edema test model was used in male albino OF-1 mice (20-25 g), 6 animals per group. Juice from fresh aerial parts of Bidens pilosa (romerillo) and from the fruit of Citrus aurantifolia (lemon), 30 % decoctions of dry aerial parts of Hyptis verticillata, fresh leaves of Morinda citrifolia (noni), and fresh leaves of Musa x paradisiaca (banana), 10 µL, were topically applied on both sides of the ear being treated. Dexamethasone 0.1 mg/ear was used as positive control. RESULTS: Citrus aurantifolia juice preparations and the 30 % Morinda citrifolia and Musa x paradisiaca decoctions reduced Croton oil ear edema with a high inhibition percentage. Bidens pilosa juice and the 30 % Hyptis verticillatadecoction did not reduce edema formation significantly. CONCLUSIONS: experimental results support the preclinical validation of the anti-inflammatory activity of Citrus aurantifolia juice and the 30 % decoctions of Morinda citrifolia and Musa x paradisiaca, as well as their traditional use. Bidens pilosa juice and the 30 % decoction of Hyptis verticillata are not validated.


Assuntos
Animais , Ratos , Musa , Morinda , Citrus aurantiifolia , Anti-Inflamatórios/uso terapêutico
12.
Rev. cuba. plantas med ; 19(3): 225-234, jul.-set. 2014.
Artigo em Espanhol | LILACS, CUMED | ID: lil-735383

RESUMO

INTRODUCCIÓN: Persea americana Mill. (aguacate) y Musa x paradisiaca L. (plátano), son dos plantas medicinales que entre sus usos tradicionales reportados, se cita, el efecto beneficioso de la decocción de las hojas frescas de aguacate para la infección urinaria, tos, bronquitis y las de plátano para la gripe, tos e inflamación. Documentado por las encuestas TRAMIL. No se encontró información preclínica suficiente en las bases de datos: SciELO, CUMED, LIS CUBA y MEDLINE para validar sus usos. OBJETIVOS: evaluar la actividad analgésica periférica y central preclínicas de la decocción al 30 % de hojas frescas de Persea americana Mill. (aguacate) y Musa x paradisiaca L. (plátano). MÉTODOS: se colectaron las hojas frescas de P. americana y M. paradisiaca y se realizaron las decocciones al 30 %. Se evaluó la actividad analgésica periférica mediante el modelo de contorsiones inducidas por ácido acético(writhing test), y la actividad analgésica central fue evaluada aplicando el modelo de retirada de la cola por inmersión en agua 55 oC (tail flick) en ratones, con dosis de 1, 5, y 10 gramos de material vegetal/kg de peso corporal. RESULTADOS: las decocciones de hojas frescas de P. americana y M. paradisiaca a las dosis estudiadas, inhibieron de forma significativa la respuesta dolorosa inducida por ácido acético con p=6,909e-08 y p=2,842e-03respectivamente. En la evaluación del tail flick, la decocción de hojas frescas de P. americana, tuvo una respuesta significativa no dosis dependiente a (5g/kg), con una p=7,018e-03; las otras dosis estudiadas y la decocción de M. paradisiaca no tuvieron respuesta significativa. CONCLUSIONES: los resultados obtenidos permiten realizar la validación preclínica de la actividad analgésica periférica de la decocción de hojas frescas P. americana (aguacate) y M. paradisiaca (plátano), así como de la actividad analgésica central de P. americana, lo que avala su uso tradicional.


INTRODUCTION: Persea americana Mill. (avocado) and Musa x paradisiaca L. (banana) are medicinal plants with traditional uses in folk medicine. Reports refer to the beneficial effects of a decoction of fresh leaves of avocado in the treatment of urinary infection, coughing and bronchitis. Decoction of banana fresh leaves is used to treat the flu, coughing and inflammation. This has been documented by TRAMIL surveys. The preclinical information found in the databases SciELO, CUMED, LIS CUBA and MEDLINE was not sufficient to validate the uses listed above. OBJECTIVES: evaluate the preclinical peripheral and central analgesic activity of a 30 % decoction of fresh leaves of Persea americana Mill. (avocado) and Musa x paradisiaca L. (banana). METHODS: fresh leaves of P. americana and M. paradisiaca were collected and 30 % decoctions were prepared. Peripheral analgesic activity was evaluated with the acetic acid induced writhing model (writhing test), whereas central analgesic activity was assessed with the tail flick model in mice by immersion in 55 oC water. The doses used were 1, 5 and 10 grams of plant material / kg of body weight. RESULTS: decoctions of fresh leaves of P. americana and M. paradisiaca at the study doses significantly inhibited the painful response induced by acetic acid with p=6.909e-08 and p=2.842e-03, respectively. In the tail flick evaluation the decoction of fresh leaves of P. americana had a significant non-dose dependent response at 5g/kg with p=7.018e-03. A significant response was not obtained from the other doses studied or from the M. paradisiacadecoction. CONCLUSIONS: results permit the preclinical validation of the peripheral analgesic activity of the decoction of fresh leaves of P. americana (avocado) and M. paradisiaca (banana), as well as the central analgesic activity of P. americana, validating the traditional use of both plants.


Assuntos
Animais , Ratos , Persea , Musa , Analgésicos/uso terapêutico , Estudos de Validação como Assunto
13.
Rev. cuba. plantas med ; 18(1): 71-83, ene.-mar. 2013.
Artigo em Espanhol | LILACS | ID: lil-667492

RESUMO

Introducción: la decocción de partes aéreas frescas de Phania matricarioides (Spreng. ) Griseb (manzanilla), se emplea tradicionalmente en Cuba para afecciones digestivas como malas digestiones y diarrea aguda simple; no se encontraron estudios de validación preclínica del efecto antidiarreico y su seguridad. Objetivos: evaluar la acción sobre el tránsito intestinal y la toxicología aguda oral y tópica en modelos preclínicos de la decocción de partes aéreas frescas de Phania matricarioides. Métodos: se colectaron las partes aéreas frescas de Phania matricarioides y se realizó decocción (30 y 50 por ciento). Se aplicó el modelo experimental: tránsito intestinal en ratones con una sola administración de la decocción al 30 por ciento en dosis de 1,0, 5,0 y 10,0 g de material vegetal/kg de peso corporal por 1 día; y en dosis de 1,0 y 5,0 g de material vegetal/kg de peso corporal por 4 días. El estudio toxicológico oral y tópico (decocción 50 por ciento) se efectuó en los modelos: clases tóxicas agudas y toxicidad dérmica aguda en ratas con dosis de 2 000 mg/kg de peso corporal e irritabilidad dérmica primaria en conejos. Resultados: la decocción administrada por 1 día no modificó de forma significativa el tránsito intestinal, la administración por 4 días disminuyó de forma significativa y dosis dependiente el tránsito intestinal (5,0 g/kg). en el estudio toxicológico no se produjo ninguna muerte, no se evidenciaron signos de toxicidad ni lesiones macroscópicas en los órganos de las ratas, el aumento de peso fue el esperado. El índice de irritación primaria reflejó 0. Conclusiones: los resultados permiten validar el efecto antidiarreico de la decocción de partes aéreas frescas de Phania matricarioides para afecciones digestivas y no clasifica como tóxico


Introduction: Phania matricarioides (Spreng. ) Griseb (chamomile) fresh aerial part decoction is traditionally used in Cuba to treat digestive disorders as upset stomach and simple acute diarrheas. However, there were no previous preclinical validation studies on the antidiarrheal effect and safety of this species. Objectives: to evaluate the action of decoction from Phania matricarioides fresh aerial parts on the intestinal transit and the oral and topical acute toxicology in preclinical models. Methods: the fresh aerial parts of this plant were harvested and decoction was obtained (30 and 50 percent). The experimental model of intestinal transit in mice, with 30 percent decoction being administrated once at doses of 1.0, 5.0 and 10.0 g of vegetal material/kg of bodyweight for one day, and at doses of 1.0 and 5.0 g/kg for 4 days, was applied. The oral and topical toxicological study (50 percent decoction) was conducted in the models acute-toxic and acute dermal toxic classes in rats at a dose of 2000 mg/kg of bodyweight and primary dermal irritability in rabbits. Results: the decoction administered for one day did not significantly change the intestinal transit, but the administration for 4 days did significantly change, depending on dose, the intestinal transit (5.0 g/kg). There was no death in the study, there were neither signs of toxicity nor macroscopic lesions in the rats' organs, whereas the weight gain behaved as expected. The index of primary irritation was null. Conclusions: the results allow validating the antidiarrheal effect of Phania matricarioides fresh aerial parts decoction on digestive disorders and it is not toxic


Assuntos
Antidiarreicos , Camomila/toxicidade
14.
Rev. cuba. plantas med ; 17(4): 380-392, oct.-dic. 2012.
Artigo em Espanhol | LILACS | ID: lil-656392

RESUMO

Introducción: Phania matricarioides (Spreng. ) Griseb (manzanilla de la tierra) es una planta que se encuentra en toda Cuba y se cultiva en jardines. La decocción o infusión de sus partes aéreas frescas se emplea de forma tradicional para tratar problemas de salud digestivos y dermatológicos. En las bases PubMed, LILACS, NAPRALERT y CUMED, no se encontró ningún estudio publicado sobre esta especie o el género. Objetivos: evaluar la actividad analgésica y antiinflamatoria preclínica de la decocción de partes aéreas frescas de Phania matricarioides. Métodos: se colectaron las partes aéreas frescas de P. matricarioides y se realizó la decocción. Se hicieron estudios farmacológicos de contorciones inducidas por ácido acético 0,75 por ciento, (0,1 mL/10 g, intraperitoneal); retirada de la cola por inmersión en agua 55 ºC en ratones, en dosis de 1 y 5 g de material vegetal/kg de peso corporal; edema de oreja inducido por aceite de Croton, vía oral (0,1 y 1g/kg); tópica (20 mL/10 g de decocción al 10, 30, y 50 por ciento) en ratones y granuloma inducido por algodón en ratas. Resultados: la decocción inhibió de forma significativa a dosis dependiente (5 g/kg) la respuesta dolorosa inducida por ácido acético, pero no la retirada de cola, ni la respuesta inflamatoria en el granuloma por algodón; en edema de oreja se inhibió la inflamación por vía oral y tópica. Conclusiones: los resultados permiten realizar la validación preclínica de la actividad analgésica y antiinflamatoria de la decocción de partes aéreas frescas para afecciones digestivas y dermatológicas


Introduction: Phania matricarioides (Spreng. ) Griseb (manzanilla de la tierra) is a plant that can be found throughout Cuba and is grown in gardens. The decoction or infusion from the fresh aerial parts is traditionally used to treat digestive and dermatologic problems. However, there was no published study on this species or genre in PubMed, LILACS, NAPRALERT AND CUMED databases. Objective: to evaluate the preclinical analgesic and anti-inflammatory action of the decoction of fresh aerial parts of Phania matricarioides. Methods: the fresh aerial parts of Phania matricarioides were picked up to make decoction. Several pharmacological studies on the 0.75 percent acetic acid-induced contortions (0.1 mL/10 g, intraperitoneally administered); tail immersed in water at 55 ºC in mice, being the dose of 1 and 5 g of vegetal material/kg of body weight; Croton oil-induced ear edema, orally (0.1 and 1 g/l g) and topically (20 mL/10 g of decoction at 10, 30 and 50 percent concentrations) in mice, and finally cotton-induced granuloma in rats. Results: the decoction significantly inhibited the painful response induced by acetic acid, depending on dose (5 g/kg), but did not affect either the tail withdrawal in immersion or the inflammatory response to cotton-induced granuloma; the inflammation treated orally and topically was inhibited in the ear edema. Conclusions: the results allowed performing the preclinical validation of the analgesic and anti-inflammatory action of the decoction of fresh aerial parts of the plant in digestive and dermatological diseases


Assuntos
Anti-Inflamatórios , Analgésicos/uso terapêutico , Camomila , Matricaria , Preparações de Plantas/uso terapêutico
15.
Rev. cuba. plantas med ; 14(1)ene.-mar. 2009.
Artigo em Espanhol | LILACS | ID: lil-547183

RESUMO

INTRODUCCIÓN: Solanum americanum Mill. (yerba mora) es usada de forma tradicional para el tratamiento de las úlceras en la piel, se utiliza además como antiinflamatorio y antiséptico en enfermedades de la piel y en cérvico-vaginitis. Sin embargo, existen pocos estudios preclínicos que validen su uso. OBJETIVO: evaluar la actividad antimicrobiana, la irritabilidad vaginal y dérmica de 2 decocciones de hojas secas de Solanum americanum Mill. MÉTODOS: se prepararon 2 extractos acuosos de: a) hojas secas al 20 por ciento y se evaluó la actividad antimicrobiana mediante el método de difusión en agar, frente a los microorganismos Candida albicans, Escherichia coli, Klebsiella pneumoniae y Salmonella thyphymurium; así como la irritabilidad en vagina de coneja por el método de Draize. b) hojas secas al 30 por ciento y se determinó la irritabilidad en piel por el método de Draize en conejos. RESULTADOS: se obtuvo con la decocción de hojas secas al 20 por ciento un halo de inhibición del crecimiento de 15,5 mm con el microorganismo Candida albicans, no hubo halo de inhibición con los otros microorganismos estudiados, se observó una irritabilidad vaginal mínima y no hubo eritema y edema en la piel de los animales con la decocción de hojas secas al 30 por ciento. CONCLUSIONES: la decocción de hojas secas de S. americanum mostró actividad antimicrobiana frente a C. albicans y no frente a los otros microorganismos, presentó irritabilidad mínima en vagina y clasificó como no irritante en piel, por lo que pueden ser empleadas en afecciones provocadas por C. albicans en piel y en vagina.


INTRODUCTION: Solanum americanum Mill (yerba mora) is used in a traditional way to treat skin ulcers, it is used also as antiinflammatory and antiseptic in skin diseases and in cervicovaginitis. However, there are few preclinical studies validating it. OBJECTIVE: To assess antimicrobial activity, vaginal and skin irritability of 2 decoctions of dry leaves of Solanum americanun Mill. METHODS: Two aqueous extracts were prepared from: a) dry leaves to 20 por ciento and antimicrobial activity was assessed by means of diffusion method in agar, versus microorganisms Candida albicans, Escherichia coli, Klebsiella pneumonia, and Salmonella thyphymurium; as well as irritability in rabbit vagina by Draize method. b) dry leaves to 30 por ciento, and skin irritability by Draize method in rabbits. RESULTS: Using a decoction of dry leaves to 20 por ciento, we achieved a growing inhibition halo of 15.5 mm with Candida albicans; but not inhibition using other study drugs; there was a minimal vaginal irritability and not erythema and edema in skin of animals using a decoction of dry leaves to 30 por ciento. CONCLUSIONS: Decoction of dry leaves of S. americanum showed antimicrobial activity versus C. albicans but not against other microorganism, with a minimal vaginal irritability, and was classified as non-irritant in skin; consequently, they may be used in affections provoked by C. albicans in skin and in vagina.


Assuntos
Dermatopatias/tratamento farmacológico , Fitoterapia , Preparações de Plantas/uso terapêutico , Solanum/efeitos adversos , Solanum
16.
Rev. cuba. plantas med ; 13(4)sept.-dic. 2008. tab
Artigo em Espanhol | LILACS | ID: lil-515546

RESUMO

Introducción: Punica granatum L es una especie vegetal que en Cuba se conoce como granada; su fruto es rico en vitamina C, antocianinas, tiamina y riboflavina, presenta otros componentes químicos que le atribuyen importantes propiedades biológicas para el tratamiento de enfermedades tumorales, y es utilizada además en medicina tradicional por sus propiedades antiparasitaria, antiinflamatoria y anticatarral. Objetivos: identificar los componentes químicos de extractos preparados a partir de frutos completos maduros congelados de Punica granatum L. Métodos: el fruto maduro total fresco congelado a - 20 oC de granada fue el material vegetal del que se obtuvo y estandarizaron los diferentes extractos a partir de una extracción hidroalcohólica 50 por ciento, se determinaron los parámetros físico-químicos de control de calidad y se realizó el tamizaje fitoquímico. Resultados: en el control de la calidad del material vegetal se obtuvo la pureza de la droga; en la estandarización de los diferentes extractos sus propiedades físicas fueron similares y en el tamizaje fitoquímico, el extracto hidroalcohólico presentó alcaloides, que no se encontraron en los otros; en ninguno se detectó la presencia de glucósidos cardiotónicos y sí de flavonoides y taninos. Conclusiones: los extractos acuosos y el liofilizado presentan flavonoides, taninos, antocianidinas, carbohidratos, cumarinas, saponinas, mucílagos, aminoácidos, quinonas, así como principios amargos y astringentes, y no presentan glucósidos cardiotónicos y alcaloides que pudieran aumentar el potencial tóxico y los efectos no deseados.


Introduction: Punica granatum L is a species that is known in Cuba as grenade, its fruit is rich in C vitamic, antocyanins, thyamine and riboflavine; it also has other chemical compounds that give them important biological properties for the treatment of tumoral diseases and is also used in the traditional herb medicine because of its antiparasitic, antinflammatory and antiflu properties. Objetives: to identify the chemical components of extracts from frozen ripe fruits of Punica granatum L. Methods: the total ripe fruit frozen at -20 oC of grenade was the vegetal material from which the different extracts were obtained and standardized from several extracts from 50percent hydroalcohol extraction. The physical and chemical parameters of quality control were estimated and the phytocemical screening was conducted. Results: in the quality control applied to the vegetal material; the purity of the drug was reached. In the standardization of different extracts, their physical properties were similar and in the phytochemical screening, the hydroalcohol extract presented alkaloids that were absent in the others; cardiotonic glycosides were undetected but flavonoids and tannins were present. Conclusions: water and lyophilized extracts had flavonoids, tannins, antocyanidins, carbohydrates, coumarins, saponins, mucilages, aminoacids, quinones, as well as astringent principles but did not have cardiotonic glycosides and alkaloids that may increase toxic potential and unwanted effects.


Assuntos
Programas de Rastreamento/métodos , Lythraceae/química , Controle de Qualidade , Tratamento Físico-Químico/métodos
17.
Rev. cuba. plantas med ; 13(4)sept.-dic. 2008. graf
Artigo em Espanhol | LILACS | ID: lil-515545

RESUMO

Introducción: Costus pictus D Don (caña mexicana) es una especie cultivada como ornamental y la decocción de hojas y tallos frescos se emplea tradicionalmente para afecciones urinarias, como infecciones, litiasis y cólicos renales en Cuba. Objetivos: identificar los principales grupos de metabolitos secundarios y validar la actividad analgésica y antiinflamatoria de la decocción de hojas y tallos frescos de C. pictus. Métodos: se identificaron los principales grupos de metabolitos secundarios presentes en la decocción mediante un tamizaje fitoquímico. Se evaluó en los modelos farmacológicos de granuloma inducido por algodón en ratas, retorcimientos inducidos por ácido acético 0,75 por ciento (0,1 mL/10 g intraperitoneal) y retirada de la cola inmersa en agua a 55 °C en ratones; las dosis administradas, por vía oral, fueron equivalentes a 0,5; 1 y 5 g de material vegetal fresco/kg de peso corporal. Resultados: la decocción mostró presencia de flavonoides, compuestos fenólicos, compuestos lactónicos y cumarinas, saponinas y azúcares reductores. Inhibió significativamente la respuesta dolorosa en ambos modelos, pero no tuvo efecto antiinflamatorio en el granuloma provocado por algodón. Conclusiones: los resultados contribuyen a validar el uso tradicional de la decocción de hojas y tallos frescos de C. pictus para aliviar el dolor por causa de afecciones renales


Introduction: Costus pictus D Don (Mexican reed) is a species for decorative purposes and the decoction of leaves and fresh stems is traditionally used for urinary disorders like infections, lithiasis and renal colic in Cuba. Objectives: to identify the main groups of secondary metabolites and to validate the analgesic and anti-inflammatory properties of a decoction of fresh leaves and stems from C. pictus. Methods: the main groups of secondary metabolites present in the decoction were identified by a phytochemical screening. The decoction was evaluated in pharmacological models of cotton-induced granulomas in rats; 0,75 por ciento acetic acid-induced cramps (0.1 mL/10 g intraperitoneal) and removal of the tail submerged into water at 55 °C in mice; the orally administered doses were 0.5; 1 and 5 g of fresh vegetable material/kg of body weight. Results: the decoction disclosed the presence of flavonoids, phenolic compounds, lactonic compounds and coumarins, saponins, and reducing sugars. It significantly reduced the painful response both models, but there was no antinflammatory effect on cotton-induced granuloma. Conclusions: the results contributed to validate the traditional use of C. pictus fresh leaves and stems in order to relieve the pain caused by renal diseases


Assuntos
Animais , Camundongos , Ratos , Costus/classificação , Costus/metabolismo , Fitoterapia , Estruturas Vegetais
18.
Rev. cuba. plantas med ; 11(1)ene.-abr. 2006. tab, graf
Artigo em Espanhol | LILACS | ID: lil-460732

RESUMO

Annona squamosa L(anón) es una especie conocida y cultivada por sus frutos en todas las regiones tropicales. Tradicionalmente se emplea como antidiarreico, antiespasmódico, antiinflamatorio y analgésico, de ahí que fue de interés realizar esta investigación para validar la actividad analgésica y antiinflamatoria de la hoja de esta especie. Fueron identificados, además, los principales grupos de metabolitos secundarios presentes en el extracto acuoso (decocción) y en el fluido (etanol 30 por ciento), de hojas frescas y secas, mediante un tamizaje fitoquímico. Ambos extractos fueron evaluados en los modelos farmacológicos de granuloma inducido por algodón en ratas, contorsiones por ácido acético 0,75 por ciento (0,1 mL/10 g intraperitoneal) en ratones; las dosis administradas por vía oral fueron equivalentes a 500 y 1 000 mg de material vegetal/kg de peso corporal, respectivamente. Se realizó un estudio de toxicidad aguda sistémica según el método de las Clases Tóxicas Agudas en ratas. Se encontraron diferencias en la composición de metabolitos secundarios entre ambos extractos. La decocción inhibió significativamente y de manera dosis dependiente la respuesta inflamatoria en el granuloma por algodón y las contorsiones inducidas por ácido acético intraperitoneal, el extracto fluido fue inactivo. No hubo evidencia de toxicidad aguda causada por ninguno de los 2 extractos, en la dosis máxima administrada por vía oral y equivalente a 10,0 y 15,67 g de material vegetal/kg, respectivamente. Estos resultados permiten validar el empleo y la seguridad del uso tradicional de la decocción de hoja fresca de A squamosa para tratar problemas de salud relacionados con dolor e inflamación


Annona squamosa L. (sugar apple, sweetsop) is a species cultivated and known by its fruits in all the tropical regions. It is traditionally used as an antidiarrheal, antispasmodic and analgesic. That's why we were interested in making this research to validate the analgesic and antiinflammatory effect of this leave. The main groups of secondary metabolites present in the aqueous extract (decoction) and in the fluid extract (ethanol 30 %) of fresh and dry leaves, respectively, were identified by a phytochemical screening. Both extracts were evaluated in the pharmacological models of cotton pellet-induced inflammation in rats, and writhing test induced by acetic acid 0,75 % (0,1 mL/10 g intraperitoneal) in mice. The orally administered doses were equivalent to 500 and 1 000 mg of plant material/kg of body weight, respectively. A study of systemic acute toxicity was conducted according to the method of Acute Toxic Classes in rats. Some differences were found in the composition of secondary metabolites between both extracts. The decoction significantly inhibited in a dose dependant way the inflammatory response in the granuloma caused by cotton and in the contortions induced by intraperitoneal acetic acid. The fluid extract was inactive. There was no certainty of acute toxicity produced by any of the two extracts in the maximum dose administered by oral route and equivalent to 10,0 and 15,67 g of plant material/kg, respectively. These results allow to validate the utilization and safety of the traditional use of decoction of fresh leaves of A. squamosa to treat health problems related to pain and inflammation


Assuntos
Animais , Camundongos , Analgésicos , Annona , Granuloma , Inflamação , Fitoterapia
19.
Rev. cuba. plantas med ; 11(2)abr.-jun. 2006.
Artigo em Espanhol | LILACS | ID: lil-629688

RESUMO

Croton argenteus L. no es conocida como planta medicinal tradicional en Cuba; pertenece al mismo género de C. lechleri, de cuyo tronco se obtiene la sangre de grado o drago en los países amazónicos que tiene diversos usos etnomédicos para tratar problemas de salud como: diarrea, heridas, úlceras gastroduodenales, inflamaciones, dolor, picaduras de insectos e infecciones virales. Existen estudios sobre esta especie, sin embargo, no se encontraron publicaciones sobre esta planta que crece en Cuba. El objetivo fue validar, en extractos de C. argenteus, efectos reportados para la planta amazónica. Se prepararon 2 extractos fluidos de partes aéreas, sin tallos, secas con etanol al 30 y 80% y se realizaron estudios de: tamizaje fitoquímico, analgesia en contorsiones provocadas por ácido acético intraperitoneal y tránsito intestinal con carbón activado por vía oral en ratones; antiinflamatorio en granuloma inducido por algodón, lesiones gástricas inducidas por indometacina y toxicidad aguda oral con el modelo de clases tóxicas agudas en ratas. Las dosis administradas de ambos extractos fueron 500 y 1000 mg de material vegetal seco/kg p.o.). Los resultados no demostraron ninguno de los efectos farmacológicos estudiados. El extracto fluido 30% no resultó tóxico, pero el preparado con etanol al 80% clasificó como muy tóxico. Los extractos fluidos de partes aéreas sin tallos de C. argenteus carecieron de actividad para las acciones farmacológicas evaluadas.


In Cuba , Croton argenteus L. is not known as traditional medicinal plant. It belongs to the same genus that C. lechleri , from whose trunk sangre de drago is obtained in the Amazonian countries. It has diverse ethnomedical uses to treat health problems, such as diarrhea, wounds, gastroduodenal ulcers, inflammations, pain, insect bites, and viral infections. There are studies on this species; however, no publications have been found on this plant growing in Cuba . The objective was to validate, in extracts from C. argenteus , the effects reported for the Amazonian plant. Two fluid extracts were prepared from aerial parts, without stalks, dried with ethanol 30 % and 80 %. Studies of phytochemical screening, analgesia in contortions caused by intraperitoneal acetic acid, and bowel transit with oral activated carbon were conducted in mice. The antiinflammatory effect was studied in the case of cotton-induced granuloma, indomethacin-induced gastric injury, and oral acute toxicity with the model of acute toxic lesions in rats. The administered oral doses of both extracts were 500 and 1000 mg of dry plant material /kg. According to the results, the expected pharmacological effects were not proved. The fluid extract (30 %) wasn't toxic, but preparation using ethanol 80% was. Fluids extracts of aerial parts without stalks of C. argenteus lacked activity for the evaluated pharmacological actions.

20.
Rev. cuba. plantas med ; 5(1): 23-5, ene.-abr. 2000. tab
Artigo em Espanhol | LILACS | ID: lil-295495

RESUMO

Se estudió la actividad antimicrobiana de diferentes concentraciones de un extracto fluido (etanol al 80 porciento) de hojas de Schinus terebinthifolius Raddi (copal). Se utilizó una batería mínima de cepas de microorganismos que incluye Staphylococcus aureus, como Gram+ Escherichia coli y Pseudomonas aeruginosa, como Gram - y la levadura Candida albicans, mediante el método de difusión en agar. Los resultados obtenidos indican que aún a la menor concentración del 1 porciento se aprecia inhibición del crecimiento de todos los microorganismos y la respuesta se incrementa gradualmente con la concentración hasta el 80 porciento. Estos resultados contribuyen a respaldar científicamente el uso tradicional de esta planta como antimicrobiano, además de sugerir la elaboración de formas farmacéuticas que permitan ampliar su aplicación


Assuntos
Medicina Tradicional , Plantas Medicinais , Cervicite Uterina/tratamento farmacológico
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