Your browser doesn't support javascript.
Show: 20 | 50 | 100
Results 1 - 7 de 7
Rev. bras. plantas med ; 18(2): 524-530, tab, graf
Article in Portuguese | LILACS | ID: lil-787937


RESUMO O Barbatimão (Stryphnodendron adstringens) planta medicinal encontrada no bioma Cerrado apresenta propriedades físico-químicas que lhe garante importantes atividades farmacológicas tais como: anti-inflamatória, analgésica e uma atividade protetora da mucosa gástrica. A casca do tronco é a principal matéria-prima usada para o desenvolvimento de produtos medicinais. Neste estudo, o objetivo foi investigar a influência da solução aquosa da casca do barbatimão no processo de formação de vasos sanguíneos na membrana corioalontoide de ovo embrionado de galinha. Foram utilizadas 30g da casca triturada em um litro de água. Este processo permitiu a obtenção da Solução Aquosa de Barbatimão - SAB em uma concentração de 30mg/mL. A atividade angiogênica da solução aquosa do barbatimão foi avaliada mediante realização de testes laboratoriais “in vivo”, utilizando como modelo experimental a membrana do ovo embrionado de galinha (MCA). Utilizou-se como controle indutor o Regederm®, o qual apresenta atividade angiogênica conhecida. Os resultados demonstraram que a SAB apresentou um percentual de vascularização na MCA de (50.4%) não tendo diferença (p>0,05) aos valores detectados no controle indutor (52,9%). Com os resultados obtidos, percebe-se que o barbatimão apresenta atividade angiogênica no modelo experimental utilizado.

ABSTRACT The Barbatimão (Stryphnodendron adstringens) medicinal plant found in the Cerrado biome has physicochemical properties which guarantee important pharmacological activities such as anti-inflammatic, analgesic and protective activities of gastric mucosa. The bark of the trunk is the main raw material used for the development of medicinal products. In this study, the objective was to investigate the influence of the aqueous solution of barbatimão bark in the formation of blood vessels in the membrane of embryonated chicken egg corioalontoid. 30g of shredded bark was used in one liter of water. This process enabled the obtention of aqueous Barbatimão - BSA at a concentration of 30mg / ml. The angiogenic activity of the aqueous solution of barbatimão was assessed by laboratory testing “in vivo”, using the chorioallantoic membrane of embryonated chicken egg (MCA) as an experimental model. TheRegederm® controlinductor was used, which exhibits known angiogenic activity. The results showed that the percentage of BSA showed a vascularization of the MCA (50.4%) there was no difference (p> 0.05) in the values detected in the control inductor (52.9%). With the obtained results, it is clear that barbatimão shows angiogenic activity under the experimental model used.

Angiogenesis Inducing Agents , Evaluation Studies as Topic/analysis , Stryphnodendron barbatimam/analysis , Ovum/classification
Braz. j. biol ; 76(1): 250-255, Feb. 2016. graf
Article in English | LILACS | ID: lil-774514


Abstract Lecanodiaspis dendrobii Douglas, 1892 (Hemiptera: Coccoidea: Lecanodiaspididae) and the associated parasitoid Cephaleta sp. (Hymenoptera: Pteromalidae) are reported for the first time in Brazil. Specimens of this scale insect were collected on branches and stems of Acacia mangium Willd., Leucaena leucocephala (Lam.) de Wit (Fabaceae), Morus nigra L. (Moraceae), Citrus reticulata Blanco (Rutaceae), Tectona grandis L. f. (Verbenaceae), Anacardium occidentale (Anacardiaceae), Annona squamosa L. and Xylopia aromatica (Lam.) Mart. (Annonaceae), in three municipalities of the Roraima state. All plants here mentioned are recorded for the first time as a host for L. dendrobii. Morphological characters of L. dendrobii and symptoms presented by the host plants infested by this pest are included in this work.

Resumo Lecanodiaspis dendrobii Douglas, 1892 (Hemiptera: Coccoidea: Lecanodiaspididae) e o parasitoide associado Cephaleta sp. (Hymenoptera: Pteromalidae) são registrados pela primeira vez no Brasil. Exemplares dessa cochonilha foram coletados sobre ramos e fustes de Acacia mangium Willd., Leucaena leucocephala (Lam.) de Wit (Fabaceae), Morus nigra L. (Moraceae), Citrus reticulata Blanco (Rutaceae), Tectona grandis L.f. (Verbenaceae), Anacardium occidentale (Anacardiaceae), Annona squamosa L. e Xylopia aromatica (Lam.) Mart. (Annonaceae), em três municípios do Estado de Roraima. Todas as plantas aqui mencionadas são registradas pela primeira vez como hospedeiras de L. dendrobii. Caracteres morfológicos da cochonilha e sintomas das plantas hospedeiras infestadas por esta praga são incluídos neste trabalho.

Animals , Female , Male , Hemiptera/parasitology , Hemiptera/physiology , Hymenoptera/physiology , Animal Distribution , Brazil , Citrus/growth & development , Hemiptera/growth & development , Hymenoptera/growth & development , Larva/growth & development , Larva/parasitology , Larva/physiology , Ovum/classification , Pupa/growth & development , Pupa/physiology
Article in English | WPRIM | ID: wpr-83622


The genetic diversity of Schistosoma haematobium remains largely unstudied in comparison to that of Schistosoma mansoni. To characterize the extent of genetic diversity in S. haematobium among its definitive host (humans), we collected S. haematobium eggs from the urine of 73 infected schoolchildren at 5 primary schools in White Nile State, Sudan, and then performed a randomly amplified polymorphic DNA marker ITS2 by PCR-RFLP analysis. Among 73 S. haematobium egg-positive cases, 13 were selected based on the presence of the S. haematobium satellite markers A4 and B2 in their genomic DNA, and used for RFLP analysis. The 13 samples were subjected to an RFLP analysis of the S. haematobium ITS2 region; however, there was no variation in size among the fragments. Compared to the ITS2 sequences obtained for S. haematobium from Kenya, the nucleotide sequences of the ITS2 regions of S. haematobium from 4 areas in Sudan were consistent with those from Kenya (> 99%). In this study, we demonstrate for the first time that most of the S. haematobium population in Sudan consists of a pan-African S. haematobium genotype; however, we also report the discovery of Kenyan strain inflow into White Nile, Sudan.

Adolescent , Animals , Base Sequence , Child , DNA, Helminth/genetics , Female , Genetic Variation , Genotype , Humans , Male , Molecular Sequence Data , Ovum/classification , Parasite Egg Count , Polymorphism, Restriction Fragment Length , Schistosoma haematobium/genetics , Schistosomiasis haematobia/diagnosis , Students , Sudan/epidemiology , Urine/parasitology
Article in English | WPRIM | ID: wpr-76769


In a paleo-parasitological analysis of soil samples obtained from V-shaped pits dating to the ancient Baekje period in Korean history, we discovered Ascaris lumbricoides, Trichuris trichiura, and Clonorchis sinensis eggs. In light of the samples' seriously contaminated state, the V-shaped pits might have served as toilets, cesspits, or dung heaps. For a long period of time, researchers scouring archaeological sites in Korea have had difficulties locating such structures. In this context then, the present report is unique because similar kind of the ancient ruins must become an ideal resource for successful sampling in our forthcoming paleoparasitological studies.

Animals , Archaeology , Helminths/classification , Humans , Ovum/classification , Parasitology , Republic of Korea , Sanitary Engineering , Soil/parasitology
Article in English | WPRIM | ID: wpr-14627


A paleoparasitological survey to detect helminth eggs was performed in archaeological sites of Jeolla-do and Jeju-do, the Republic of Korea. Total 593 soil samples were collected in 12 sites of Jeolla-do and 5 sites of Jeju-do from April to November 2011, and examined by the methods of Pike and coworkers. A total of 4 helminth eggs, 2 eggs each for Trichuris trichiura and Ascaris sp., were found in soil samples from 1 site, in Hyangyang-ri, Jangheung-eup, Jangheung-gun, Jeollanam-do. The egg-recovery layer was presumed to represent a 19th century farm, which fact suggested the use of human manures. This is the third archaeological discovery of parasite eggs in Jeolla-do. Additionally, no helminth eggs in archaeological sites of Jeju-do is an interesting problem to be solved in the further investigations.

Animals , Archaeology , Ascaris/classification , History, Ancient , Humans , Ovum/classification , Paleontology , Parasite Egg Count , Parasitology/history , Republic of Korea , Soil/parasitology , Trichuris/classification
Article in English | IMSEAR | ID: sea-112127


Anopheles subpictus was reported to be a complex of four sibling species provisionally designated as species A, B, C and D. Present studies in District Sonepat, Haryana have revealed the sympatricity of species A, C and D based on the reported distinct morphotaxanomical identification characters in different life stages of the mosquito. Studies on field collected adult mosquitoes and isofemale progeny did not show variations in the prevalence of sibling species and also showed a possibility of use of a single reported morphological character in a given life stage for the identification of the members of this complex.

Animals , Anopheles/anatomy & histology , Breeding , Female , India , Insect Vectors , Larva/anatomy & histology , Ovum/classification , Prevalence , Pupa/anatomy & histology , Rivers , Rural Population , Species Specificity