Buscar
Mostrando ítems 1-10 de 44
Helicobacter pylori in a Costa Rican dyspeptic patient population
(1994-03)
Gastric biopsies from 65 Costa Rican dyspeptic patients were investigated for the presence ofHelicobacter pylori DNA by polymerase chain reaction (PCR) amplification of 16S rRNA sequences. Both frozen and paraffin-embedded ...
Immunomagnetic separation and PCR detection show Shigellae to be common faecal agents in children from urban marginal communities of Costa Rica
(1996)
Culture and immunomagnetic separation-polymerase chain reaction assays (IMS-PCR) were used to isolate and identify Shigella flexneri, S. dysenteriae type I and S. sonnei in faeces from 250 children up to 5 years and from ...
Tamizaje de deleciones en pacientes con distrofia muscular de Duchenne (DMD) o Becker-Kiener (BMD) mediante PCR multiplex en Costa Rica, 1998-2000
(Acta Pediátrica Costarricense ;15 (2) p. 78-85, 2001)
Objetivo: Iniciar los estudios genético moleculares sobre las distrofinopatías en Costa Rica. Materiales y Métodos: Treinta y un pacientes varones, diagnosticados con distrofia muscular, que podrían ser distrofinopáticos ...
Estandarización de una PCR para la detección del gen invA de Salmonella spp. en lechuga
(Revista de la Sociedad Venezolana de Microbiología 2010; 30(1): 18-23, 2010)
Salmonella spp. es un patógeno bacteriano muy importante causante de diarreas, que es transmitido tanto por la vía fecal-oral,
como por alimentos y agua contaminados. En este trabajo se estandarizó una técnica de PCR en ...
Molecular detection of Clostridium difficile on inert surfaces from a Costa Rican hospital during and after an outbreak
(2016-12-01)
Background: Hospital transmission of Clostridium difficile is fostered by contamination of surfaces and
medical equipment with spores highly resistant to disinfectants and regular cleaning procedures. Despite
the outbreaks ...
Neoadjuvant Metformin Added to Systemic Therapy Increases Pathological Complete Response in Breast Cancer: A Cross-sectional Study, Mexico Hospital, Costa Rica
(2018-02)
Background: Metformin shows anti-proliferative effect on tumor cells. We studied the effect of metformin on achieving complete pathological response (pCR) in breast cancer patients receiving neoadjuvant therapy in a Latin ...
Detection of shigella in lettuce by the use of a rapid molecular assay with increased sensitivity
(Brazilian Journal of Microbiology (2010) 41: 993-1000, 2010)
A Multiplex Polymerase Chain Reaction (PCR) assay to be used as an alternative to the conventional culture method in detecting Shigella and enteroinvasive Escherichia coli (EIEC) virulence genes ipaH and ial in lettuce was ...
Molecular Detection of Bartonella Species in Fleas Collected from Dogs and Cats from Costa Rica
(2015-09)
The bacterial genus Bartonella includes several species with zoonotic potential, some of which are common in domestic dogs and cats, as well as in their fleas. Because there is no previous information about the presence ...
Androgen Receptor Expression in Locally Advanced Breast Cancer Predicts Lack of Pathological Complete Response After Neoadjuvant Treatment
(2017-11)
Background: Data regarding the prognostic value of androgen receptor (AR) expression in locally advanced breast cancer (LABC) is limited. We aimed to determine the pathological complete response, defined as ypT0/is and ...
Estimación de dosis génica mediante PCR multiplex y electroforesis capilar fluorescente en posibles portadoras de deleciones en el gen de la distrofina, C.R., 1998-2000
(Acta Pediátrica Costarricense 15 (2) 64-77, 2001)
Objetivo: Estimar la dosis génica en el gen de la distrofina a mujeres a riesgo de ser portadoras de deleciones. Sitio de realización: INISA y Escuela de Biología, Universidad de Costa Rica. Materiales y métodos: Se obtuvo ...