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1.
Int. j. morphol ; 30(2): 666-672, jun. 2012. ilus
Article in English | LILACS | ID: lil-651848

ABSTRACT

The present work was aimed at studying the antifertility potential of the commonly used herb, rosemary in the male albino rats using electron microscopy as the method of investigation. Ethanolic extract of the rosmary prepared and administered orally in two different doses for a period of three months to the animals. At the end of the experiment animals were sacrificed and testes removed. Sections for the electrone microscopy prepared and changes were observed. The present results showed evident microscopic changes in the testis of the animals received higher dose of the drug. Most of the seminiferous tubules were compressed, having irregular basement membrane and devoid of any spermatogenic cells. The present work revealed a clear morphological evidence of the dose dependent antifertility potential of the rosemary in the male albino rats.


El trabajo tuvo como objetivo estudiar el potencial anti-fertilidad de la hierba de uso común, el romero, en ratas albinas macho utilizando microscopía electrónica como método de investigación. El extracto etanólico del romero se preparó y administró por vía oral a los animales en dos dosis diferentes durante un período de tres meses. Los animales experimentales se sacrificaron y se retiraron sus testículos. Se prepararon secciones para microscopía electrónica y se observaron los cambios. Los resultados mostraron cambios microscópicos evidentes en los testículos de los animales que recibieron una dosis mayor del medicamento. La mayoría de los túbulos seminíferos se observaron comprimidos, con una membrana basal irregular y carente de células espermatogénicas. El presente trabajo revela una clara evidencia morfológica de una posible anti-fertilidad dependiente de la dosis del romero administrada en las ratas albinas macho.


Subject(s)
Animals , Rats , Plant Extracts/pharmacology , Fertility , Rosmarinus/administration & dosage , Testis/ultrastructure , Microscopy, Electron, Scanning , Rosmarinus , Testis
2.
Rev. odonto ciênc ; 26(2): 139-144, 2011. ilus, tab
Article in English | LILACS, BBO | ID: lil-611660

ABSTRACT

PURPOSE: To evaluate the anti-adherent activity of Rosmarinus officinalis (Rosemary) essential oil on Candida albicans (ATCC289065). METHODS: The effect of the essential oil of R. officinalis at concentrations of 0.56 mg/mL,1.12 mg/mL and 2.25 mg/mL on C. albicans adherence was examined using Scanning Electron Microscopy (SEM) analysis. A test piece of acrylic resin, 2 mL of Sabouraud Dextrose broth,0.2 mL of fungal inoculum and 2 mL of R. officinalis essential oil in the various test concentrations were combined in sterile glass tubes. Sterile distilled water and nystatin (100.000 IU/mL) were used as controls. The essential oil test products were combined with the fungal samples under two different conditions: at the same time as the other components of the adhesion device(t=0 h) or 24 h after the combination of the other components (t=24 h). The tubes were incubated at 37 °C for 48 h. The specimens were fixed and prepared for SEM analysis. RESULTS: At 0.56 mg/mL, the effect of R. officinalis essential oil was similar to that of nystatin (t=0h and t=24 h). At 2.25 mg/mL, the essential oil caused significant cell disruption and inhibition of adhesion. An intermediate effect was observed at 1.12 mg/mL. Greater inhibition of adhesion was observed at t = 24 h. CONCLUSION: The essential oil of R. officinalis had an anti-adherent effect on C. albicans. Greater inhibition of adhesion was observed in cultures undergoing cellular aggregation (t=24 h) and at higher concentrations of the natural product.


OBJETIVO: Avaliar a atividade antiaderente do óleo essencial de Rosmarinus officinalis (Alecrim) sobre Candida albicans (ATCC289065). METODOLOGIA: O óleo essencial de R. officinalis foi avaliado nas concentrações 0,56 mg/mL;1,12 mg/mL e 2,25 mg/mL, através de Microscopia Eletrônica de Varredura (MEV). Adicionou-se, em tubos de vidro estéreis: 1 corpo de prova de resina acrílica; 2 mL de caldo Sabouraud-Dextrose; 0,2 mL do inoculo fúngico e 2 mL do óleo essencial de R. officinalis nas concentrações testadas. Água destilada estéril e nistatina (100.000 UI/mL) funcionaram como controle. Os produtos testados foram adicionados em duas condições: junto aos demais componentes do dispositivo de aderência (t=0h); e após 24 h da inserção desses componentes (t=24 h). Os tubos foram incubados a 37 ºC durante 48 h. Os espécimes foram fixados e preparados para análise em MEV. RESULTADOS: Na concentração 0,56 mg/mL o óleo essencial de R. officinalis, foi semelhante a nistatina (t=0 h e t=24 h). Na concentração 2,25 mg/mL, o produto natural provocou inibição significativa da aderência e rompimento celular. Efeito intermediário foi observado em 1,12 mg/mL. Maior inibição da aderência foi observada em t=24 h. CONCLUSÃO: O óleo essencial de R. officinalis apresentou atividade antiaderente sobre C. albicans. Maior inibição da aderência foi observada para o estado de agregação celular (t=24 h) e maior concentração do produto natural.


Subject(s)
Humans , Candidiasis, Oral/therapy , Rosmarinus/administration & dosage , Rosmarinus/pharmacology , Products with Antimicrobial Action , Oils, Volatile
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