DETECCIÓN DE BACTERIAS INTRACELULARES EN AMEBAS DE VIDA LIBRE EN BOGOTÁ, COLOMBIA
Se aislaron amebas de vida libre de ambientes de humedal y se comprobó la presencia de bacterias intracelulares que pueden estar asociadas con procesos infecciosos en pacientes inmunocompetentes e inmunocomprometidos. Esto genera una perspectiva relevante para la salud pública y el control de enfermedades emergentes y reemergentes en hábitats urbanos y semirrurales.

Sonia Marcela Rosas Arango
Bogotá, Colombia

     

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UM MÉTODO SIMPLES DE BAIXO CUSTO POR CZE PARA A DETERMINAÇÃO SIMULTÂNEA DE TUBERCULOSTÁTICOS
O método desenvolvido e validado por CZE (40 mmol/l-1 de tetrabotato de sódio, solução pH 9, como eletrólito de fundo, aplicando uma voltagem de 20 kV, e detecção a 269.5 nm.) permitiu a separação completa dos analitos (isoniazida, pyraminazida e rifampicina) em apenas 5 minutos e permitiu a determinação simultânea destes fármacos em comprimidos. Quando comparado com o método CLAE mostrou que ambos possuem precisão e exatidão equivalentes. A EC apresenta vantagens importantes como a redução do custo quanto ao equipamento, coluna cromatográfica, e de consumíveis.

Roberto Pontarolo
Curitiba, Brasil

  

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  ENTEROCOCCUS FAECALIS EFAA IN THERAPY-RESISTANT ENDONTIC INFECTIONS
Enterococcus faecalis implicated in persistent root canal infections has also been associated with infective endocarditis arising from certain invasive dental procedures. The aim of this study was to detect the presence of putative E. faecalis virulence factor, endocarditis antigen efaA in root canals of therapy-resistant endodontic infections using molecular technology.

Preethee Thomas
Kochi, In

  

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RAMAN SPECTROSCOPIC APPLICATIONS IN FOOD, PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
We have reviewed the applications of Raman spectroscopy in the analysis of food and pharmaceutical nanomaterials and engaged to develop a clinical method for early prostate cancer detection using iron oxide magnetic nanoparticles to enrich biomarker concentrations. Surface enhanced Raman scattering results appear to be promising in the pre-clinical part.

Ying-sing Li
Memphis, Us

  

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THE ROLE OF VIRUS, GENES AND TOBACCO IN ORAL CANCER
The prevalence of oral squamous cell carcinoma (OSCC) has significantly increased over decades in several countries and human papilloma virus (HPV) has been indicated as one of the underlying causes. This suggests that HPV plays a role in the early stages of carcinogenesis but is not a requisite for the maintenance and progression of malignant state. p53 is a tumor suppressor gene that checks the cell and promotes apoptosis and cell repair that can be deactivated by mutations and a viral interaction leading to cancer and individuals with particular polymorphic variant of p53 is more susceptible to HPV-induced carcinogenesis. The present study has been carried out to detect and correlate p53 polymorphism/mutation, HPV DNA in the biopsy samples of oral cancer patients who had tobacco habits.

Bidyut Chakrobarty
Visakhapatnam, In

     

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