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Search Results: 1 - 10 of 1845 matches for " Berenguer Rivas "
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Intoxicaciones por plantas tóxicas atendidas desde un servicio de información toxicológica
Macías Peacok,Beatriz; Suárez Crespo,Maykel Fernando; Berenguer Rivas,Clara Azalea; Pérez Jackson,Liliana;
Revista Cubana de Plantas Medicinales , 2009,
Abstract: introduction: in many countries, the accidental or intentional exposure to toxic substances is the frequent cause of acute and chronic pathological processes that represent the second cause of death after the infectious illnesses. in statistical reports, poisoning from pscyho drugs and herbicides prevail, but there are others as those caused by vegetable substances that are also commonly treated in the emergency services. objectives: to ascertain the incidence and mortality of poisoning from plants reported in the pharmacological and toxicological consultancy service of toximed. methods: the record of poisoned patients seen at this service from 1998 to december 2007 was used; the universe of patients was 290. each register provided data like sex, clinical manifestations, circumstances around the poisoning, name of the toxic plant, place of origin of the poisoned person and the patient's final evolution. results: twenty four consultation services for poisoned patients caused by toxic plants were recorded. (8,3 %). male patients (75 %) and intentional poisoning for toxic mania (54 %) prevailed; being (datura stramonium l.) the most used plant. the highest percent of poisoned persons was found in santiago de cuba province (75 %) where the patients from santiago de cuba municipality (38,9 %) predominated. there were 4 deaths (16,7 %). conclusions: the population of the eastern region of the country traditionally uses some plants that have been barely studied or not studied at all from the toxicological viewpoint, so it is necessary to continue studying these plants, and to disseminate information in order to reduce morbidity and mortality from toxic vegetables.
Toxicidad a dosis repetidas de Azadirachta indica A. Juss. (árbol del Nim) Repeated dose toxicity in Azadichfa indica A. Juss (Neem tree)
Clara Azalea Berenguer Rivas,Alfredo Alfonso Castillo,Onel Fong Lores,Aníbal Domínguez Odio
Revista Cubana de Plantas Medicinales , 2010,
Abstract: INTRODUCCIóN: Azadirachta indica A. Juss., conocida como árbol del Nim, tiene múltiples aplicaciones para la agricultura, la medicina veterinaria y la salud, es una especie vegetal de importancia relevante por su uso como antimicrobiano, antiparasitario e inmunoestimulante. OBJETIVO: detectar signos de toxicidad tras la administración diaria durante 28 d de la decocción de A. indica. MéTODOS: se realizó un ensayo de toxicidad a dosis repetidas a una decocción de esta planta administrando una dosis de 1 000 mg/kg por vía oral a ratas Sprague Dawley durante 28 d. Se evaluaron los signos clínicos y el peso corporal de los animales en estudio y se realizaron exámenes de hematología, bioquímica sanguínea, análisis anatomopatológico e histopatológico. RESULTADOS: la decocción de la planta no produjo alteraciones significativas en el peso corporal, ni hubo signos clínicos indicadores de toxicidad. No se observaron alteraciones en los indicadores hematológicos y bioquímicos atribuibles a la sustancia de ensayo. Los resultados anatomopatológicos no mostraron alteraciones sobre sistemas, órganos y tejidos. CONCLUSIONES: el estudio no demostró efectos tóxicos en el modelo animal utilizado, que pudieran estar asociados a la administración repetida de la decocción de la planta A. indica en las condiciones empleadas. INTRODUCTION: Azadirachta indica A. Juss, known as Neem tree, has various applications in agriculture, veterinary medicine and health care, thus it is a relevant vegetable species due to its antimicrobial, antiparasitic and immunostimulating properties. OBJECTIVE: to detect any signal of toxicity after daily oral administration of decoction for 28 days. METHODS: a repeated dose toxicity assay using a A. indica decoction at a dose of 1000 mg/kg, orally administered to Sprague Dawley rats for 28 days. Clinical signs and body weight of the study animals were evaluated together with hamatological, blood chemistry, anatomopathological and histopathological analyses. RESULTS: this decoction brought about neither significant change in the body weight nor clinical signs indicating toxicity. There were not altered hematological and biochemical indicators that may be attributed to the substance under testing. The anatomopathological results did not show any alteration upon systems, organs and tissues. CONCLUSIONS: the study did not reveal toxic effects in the animal model that might be connected with the repeated oral administration of A. indica decoction under the study conditions.
Intoxicaciones por plantas tóxicas atendidas desde un servicio de información toxicológica Cases of poisoning caused by toxic plants seen at a toxicological information service
Beatriz Macías Peacok,Maykel Fernando Suárez Crespo,Clara Azalea Berenguer Rivas,Liliana Pérez Jackson
Revista Cubana de Plantas Medicinales , 2009,
Abstract: INTRODUCCIóN: en muchos países la exposición accidental o voluntaria a sustancias tóxicas es causa frecuente de procesos patológicos agudos y crónicos, que constituyen la segunda causa de muerte, después de las enfermedades infecciosas. En reportes estadísticos predominan las intoxicaciones por psicofármacos y plaguicidas, pero existen otras como las provocadas por sustancias vegetales que también son consultas frecuentes en los servicios de urgencias. OBJETIVO: determinar la incidencia y mortalidad de intoxicaciones por plantas reportadas en el servicio de Consultoría Fármaco-Toxicológica de TOXIMED. MéTODOS: se empleó el registro de pacientes intoxicados atendidos en este servicio, desde 1998 hasta diciembre de 2007, para un universo de 290 pacientes. De cada registro se obtuvieron datos como sexo, manifestaciones clínicas, circunstancias de la intoxicación, nombre de la planta tóxica, lugar de procedencia del intoxicado, evolución final del paciente. RESULTADOS: se atendieron 24 consultas de pacientes intoxicados por plantas tóxicas (8,3 %). Predominaron los pacientes del sexo masculino (75 %) y las intoxicaciones voluntarias por toxicomanía (54 %) en las cuales el clarín (Datura stramonium L.) fue la planta más utilizada. El mayor porcentaje de intoxicados fue de la provincia Santiago de Cuba (75 %) y predominaron los pacientes del municipio Santiago de Cuba (38,9 %). Hubo 4 fallecidos (16,7 %). CONCLUSIONES: la población de la región oriental del país emplea de manera tradicional plantas poco o nada estudiadas toxicológicamente, por lo que se hace necesario continuar con su estudio, y realizar labores de divulgación para disminuir la morbilidad y mortalidad por vegetales tóxicos. INTRODUCTION: in many countries, the accidental or intentional exposure to toxic substances is the frequent cause of acute and chronic pathological processes that represent the second cause of death after the infectious illnesses. In statistical reports, poisoning from pscyho drugs and herbicides prevail, but there are others as those caused by vegetable substances that are also commonly treated in the emergency services. OBJECTIVES: to ascertain the incidence and mortality of poisoning from plants reported in the Pharmacological and Toxicological Consultancy Service of TOXIMED. METHODS: The record of poisoned patients seen at this service from 1998 to December 2007 was used; the universe of patients was 290. Each register provided data like sex, clinical manifestations, circumstances around the poisoning, name of the toxic plant, place of origin of the poisoned person and
Toxicidad a dosis repetidas de Azadirachta indica A. Juss. (árbol del Nim)
Berenguer Rivas,Clara Azalea; Alfonso Castillo,Alfredo; Fong Lores,Onel; Domínguez Odio,Aníbal; Betancourt Hernandez,Juan E.; Laramendi Gri?an,Dani; Salas Martínez,Hilario; Puentes Zapata,Edgar; Wawoe Díaz,Nioslaymy;
Revista Cubana de Plantas Medicinales , 2010,
Abstract: introduction: azadirachta indica a. juss, known as neem tree, has various applications in agriculture, veterinary medicine and health care, thus it is a relevant vegetable species due to its antimicrobial, antiparasitic and immunostimulating properties. objective: to detect any signal of toxicity after daily oral administration of decoction for 28 days. methods: a repeated dose toxicity assay using a a. indica decoction at a dose of 1000 mg/kg, orally administered to sprague dawley rats for 28 days. clinical signs and body weight of the study animals were evaluated together with hamatological, blood chemistry, anatomopathological and histopathological analyses. results: this decoction brought about neither significant change in the body weight nor clinical signs indicating toxicity. there were not altered hematological and biochemical indicators that may be attributed to the substance under testing. the anatomopathological results did not show any alteration upon systems, organs and tissues. conclusions: the study did not reveal toxic effects in the animal model that might be connected with the repeated oral administration of a. indica decoction under the study conditions.
Identificación y prevención de riesgos de origen químico en centros laborales de Santiago de Cuba
Rojas Vázquez,Evelyn Ivette; Domínguez Odio,Aníbal; Rodríguez Tito,Jose Carlos; Macías Peacok,Beatriz; García Cabrera,Liset; Clapé Laffita,Oneyda; Berenguer Rivas,Clara Azalea; Fong Lores,Onel;
Salud de los Trabajadores , 2006,
Abstract: in the toxmed occupational health service, we sought to identify current chemical risks and analyze their association with work conditions in 11 work centers. information was obtained on the chemical composition of the substances, their uses, associated hazards and toxicities, duration of exposure, direct and indirect exposures to the chemical substances, use of personal protective equipment, occupational hygiene measures, the presence of natural or artificial ventilation and other technical characteristics of the productive process. the most common chemicals were hydrocarbons, metals, acids, and alkalis; there was evidence of widespread incorrect use of petroleum derivatives. carcinogenic substances, inhalation hazards, corrosives, irritants, oxidizers, flammable compounds and a mutagen were identified. regarding work conditions, the absence of personal protective equipment (41.84%) was most commonly reported, followed by non-compliance with occupational hygiene measures (28,57%), and, lastly, inadequate ventilation and emissions of chemical substances (16.32%). this assessment of occupational risk allowed the evaluation of chemical hazards, and a qualitative assessment of potential risk by job, previously not evaluated from a toxicological perspective, as well as compliance with recommended preventive practices to decrease the negative impact of chemical exposures on worker health.
LAS PINTURAS DE EL MEDA?O, NORTE DE CHILE: 25 A?OS DESPUéS DE MOSTNY Y NIEMEYER
Berenguer R,José;
Boletín del Museo Chileno de Arte Precolombino , 2009, DOI: 10.4067/S0718-68942009000200004
Abstract: despite being written for the general public, the publications of grete mostny and hans niemeyer (1983, 1984) offer the first scientific study of the pictographs of el médano, a remote coastal ravine in northern chile that contains more than a thousand marine and terrestrial images, including scenes of group hunting and fishing from seagoing vessels and guanaco hunting with arrows. it is argued that the data and interpretations offered by the aforementioned researchers present problems and raise questions that are pertinent both to the late prehistory of the northern chilean desert coast and to current studies of rock art.
Hepatitis C and fibrosis Virus de la hepatitis C y fibrosis
V. Aguilera,M. Berenguer
Revista Espa?ola de Enfermedades Digestivas , 2004,
Abstract:
Plasma Reactors and Plasma Thrusters Modeling by Ar Complete Global Models
Chloe Berenguer,Konstantinos Katsonis
International Journal of Aerospace Engineering , 2012, DOI: 10.1155/2012/740869
Abstract:
Elena Romero (con la colaboración de Carmen Valentín), Seis coplas seffardíes de castiguerio de Hayim Yom-Tob Magula. Edición críticca y estudio. Madrid: CSIC, 2003 (Publicaciones de Estudios Sefardíes, 8)
Berenguer Amador, A.
Sefarad : Revista de Estudios Hebraicos y Sefardíes , 2006,
Abstract:
Los Suvenires del meldar de Alexandr Ben-Guiat
Berenguer Amador, ángel
Sefarad : Revista de Estudios Hebraicos y Sefardíes , 2004,
Abstract: The present paper offers the edition of a Judeo-Spanish text describing certain aspects of the meldar -the Jewish religious elementary school- in late nineteenth-century Smyrne. The author of the text presents in an ironic fashion a number of amusing situations and anecdotes which he himself had experienced as a boy during his schooldays. The work provides us with important data of a socio-historical interest that broadens our knowledge of education within Sephardic communities in the Eastern Mediterranean world. El presente artículo es la edición de un texto judeoespa ol en el que se presentan algunos aspectos del meldar -la escuela religiosa judía de primera ense anza- de la ciudad de Esmirna a finales del siglo XIX. El autor expone con ironía situaciones curiosas y divertidas que sucedían en su vida escolar. Por ello, en la obra se hallan datos de interés sociohistórico que contribuyen al conocimiento de ciertas facetas de la educación entre las comunidades sefardíes del Mediterráneo oriental.
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