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4 resultados encontrados para: AUTOR: Enriquez Ríos, N.
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1.
- Libro con arbitraje
Biodiversidad marina y costera de México / Sergio I. Salazar Vallejo, Norma Emilia González, editores
Salazar Vallejo, Sergio I. (ed.) ; González Vallejo, Norma Emilia (coed.) ;
Chetumal, Quintana Roo, México : Comisión Nacional Para el Conocimiento y Aprovechamiento de la Biodiversidad , 1993
Clasificación: EQ/333.952 / B5
Cerrar
SIBE Campeche
ECO040001061 (Disponible) , ECO040001060 (Disponible)
Disponibles para prestamo: 2
Cerrar
SIBE Chetumal
ECO030000497 (Disponible) , ECO030000498 (Disponible) , ECO030000499 (Disponible)
Disponibles para prestamo: 3
Cerrar
SIBE San Cristóbal
ECO010011875 (Disponible) , ECO010016724 (Disponible)
Disponibles para prestamo: 2
Cerrar
SIBE Tapachula
ECO020005531 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Villahermosa
ECO050000871 (Disponible) , ECO050001006 (Disponible)
Disponibles para prestamo: 2

2.
Artículo
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Resumen en: Inglés |
Resumen en inglés

We investigated the distribution of comorbidities among adult tuberculosis (TB) patients in Chiapas, the poorest Mexican state, with a high presence of indigenous population, and acorridor for migrants from Latin America. Secondary analysis on 5508 new adult TB patients diagnosed between 2010 and 2014 revealed that the most prevalent comorbidities were diabetes mellitus (DM; 19.1%) and undernutrition (14.4%). The prevalence of DM in these TB patients was significantly higher among middle aged (41–64 years) compared witholder adults (>65 years) (38.6% vs. 23.2%; P< 0.0001). The prevalence of undernutrition was lower among those with DM, and higher in communities with high indigenous presence. Immigrants only comprised 2% of all TB cases, but were more likely to have unfavourable TB treatment outcomes (treatment failure, death and default) when compared with those born in Chiapas (29.5% vs. 11.1%; P< 0.05). Unfavourable TB outcomes were also more prevalent among the TB patients with undernutrition, HIV or older age, but not DM (P< 0.05). Our study in Chiapas illustrates the challenges of other regions worldwide where social (e.g. indigenous origin, poverty, migration) and host factors (DM, undernutrition, HIV, older age) are associated with TB. Further understanding of these critical factors will guide local policy makers and health providers to improve TB management.


3.
- Libro con arbitraje
Diversidad biológica en Chiapas / Mario González Espinosa, Neptalí Ramírez Marcial, Lorena Ruiz Montoya (coordinadores)
González Espinosa, Mario (coord.) (1950-) ; Ramírez Marcial, Neptalí (coord.) (1963-) ; Ruiz Montoya, Lorena (coord.) (1964-) ;
México : El Colegio de la Frontera Sur :: Consejo de Ciencia y Tecnología del Estado de Chiapas :: Plaza y Valdés , 2005
Clasificación: EE/333.9507275 / D5
Cerrar
SIBE Campeche
ECO040007010 (Disponible) , ECO040002410 (Disponible)
Disponibles para prestamo: 2
Cerrar
SIBE Chetumal
ECO030002871 (Disponible) , ECO030001436 (Disponible)
Disponibles para prestamo: 2
Cerrar
SIBE San Cristóbal
ECO010015400 (Disponible) , ECO010008908 (Disponible) , ECO010007827 (Disponible)
Disponibles para prestamo: 3
Cerrar
SIBE Tapachula
ECO020008674 (Disponible) , ECO020008822 (Disponible)
Disponibles para prestamo: 2
Cerrar
SIBE Villahermosa
ECO050004732 (Disponible) , ECO050002699 (Disponible)
Disponibles para prestamo: 2

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Resumen en: Inglés |
Resumen en inglés

A new method using a magnetic nanoparticle-based colorimetric biosensing assay (NCBA) was compared with sputum smear microscopy (SSM) for the detection of pulmonary tuberculosis (PTB) in sputum samples. Studies were made to compare the NCBA against SSM using sputum samples collected from PTB patients prior to receiving treatment. Experiments were also conducted to determine the appropriate concentration of glycan-functionalized magnetic nanoparticles (GMNP) used in the NCBA and to evaluate the optimal digestion/decontamination solution to increase the extraction, concentration and detection of acid-fast bacilli (AFB). The optimized NCBA consisted of a 1:1 mixture of 0.4% NaOH and 4% N-acetyl-L-cysteine (NALC) to homogenize the sputum sample. Additionally, 10 mg/mL of GMNP was added to isolate and concentrate the AFB. All TB positive sputum samples were identified with an increased AFB count of 47% compared to SSM, demonstrating GMNP’s ability to extract and concentrate AFB. Results showed that NCBA increased AFB count compared to SSM, improving the grade from “1+” (in SSM) to “2+”. Extending the finding to paucibacillary cases, there is the likelihood of a “scant” grade to become “1+”. The assay uses a simple magnet and only costs $0.10/test. NCBA has great potential application in TB control programs.