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2.
Med. intensiva (Madr., Ed. impr.) ; 29(9): 462-468, dic. 2005. ilus, tab
Article in Es | IBECS | ID: ibc-041965

ABSTRACT

Objetivo. La fibronectina (FBN) es una proteína moduladora de la fagocitosis y como tal podría relacionarse con los procesos infecciosos. Evaluamos la eficacia de la fibronectina sérica como marcador precoz de infección respiratoria en pacientes críticos bajo ventilación mecánica (VM). Diseño. Estudio prospectivo de casos-control. Ámbito. Unidad de Cuidados Intensivos (UCI) polivalente en Hospital de tercer nivel con 42 camas. Pacientes. Setenta y siete pacientes con VM sin signos de infección al ingreso (casos) y 55 pacientes tras cirugía programada como muestra de validación (controles). Intervenciones. FBN sérica y cultivos cualitativos de aspirado endobronquial (AE) el primer, cuarto y séptimo día (si mantenían la VM) con seguimiento hasta el día décimo. Variables. Variables demográficas, SOFA y APACHE II al ingreso y aparición de neumonía o traqueobronquitis durante el seguimiento. Resultados. Los casos presentaban niveles más bajos de FBN (0,24 ± 0,11 g/l frente 0,39 ± 0,29 g/l, p < 0,01), pero ni el diagnóstico, los índices de gravedad o el pronóstico en este grupo se relacionaron con la FBN. Los casos con aislamiento de algún microorganismo en AE no presentaron niveles de FBN diferentes al ingreso (0,23 ± 0,10 frente a 0,25 ± 0,12) (independientemente del grupo diagnóstico), así como al cuarto o séptimo día. Presentaron infección respiratoria 27 (35,1%) pacientes, neumonía 19 y traqueobronquitis en 8. La FBN no mostró diferencias significativas con el resto de casos en ninguna de las tres determinaciones realizadas. Conclusiones. La FBN sérica en pacientes ingresados en UCI no es marcador de gravedad ni se relaciona con el pronóstico, no mostrando tampoco utilidad como marcador de infección respiratoria


Objective. Fibronectin (FBN) is a phagocytosis modulating protein and, as such, could be related with the infectious condition. We evaluate the efficacy of serum fibronectin as an early marker of respiratory infection in critical patients receiving mechanical ventilation (MV). Design. Prospective study of cases-control. Scope. Polyvalent ICU in third level Hospital with 42 beds. Patients. Seventy seven patients with MV without signs of infection on admission (cases) and 55 patients after elective surgery as validation sample (controls). Interventions. Serum FBN and qualitative cultures of endobronchial aspirate (EA) on days 1, 4 and 7 (if MV was maintained) with follow-up to day 10. Variables. Demographic variables, SOFA and APACHE II on admission and appearance of pneumonia or tracheobronchitis during follow-up. Results. The cases had low levels of FBN (0.24 ± 0.11 g/l vs 0.39 ± 0.29, p < 0.01), however, neither the diagnosis, seriousness indexes or prognosis in this group were related with the FBN. Cases with isolation of some microorganism in EA did not have different FBN levels on admission (0.23 ± 0.10 vs 0.25 ± 0.12) (regardless of the diagnostic group) nor on the fourth or seventh day. A total of 27 (35.1) patients had respiratory infection, 19 pneumonia and 8 tracheobronchitis. FBN did not shown any significant differences with the remaining cases in any of the three measurements made. Conclusions. Serum FBN in patients hospitalized in the ICU is not a marker of seriousness nor is it related with prognosis. It also does not have any utility as a marker of respiratory infection


Subject(s)
Humans , Fibronectins/analysis , Respiratory Tract Infections/therapy , Respiration, Artificial/adverse effects , Prospective Studies , Phagocytosis/physiology , Biomarkers/analysis
3.
Parasite ; 11(2): 219-23, 2004 Jun.
Article in English | MEDLINE | ID: mdl-15224584

ABSTRACT

A study of the cross-reactivity among somatic and excretory-secretory antigens of the third stage larvae of Anisakis simplex s.l. and somatic antigens of other ascarid nematodes (Ascaris lumbricoides, A. suum, Toxocara canis, Anisakis physeteris, Hysterothylacium aduncum and H. fabri) was carried out by immunoblotting. It was revealed a high degree of cross-reactivity among ascarids in the 30 and > 212 kDa range by using sera against somatic and excretory-secretory antigens of A. simplex s.l. It has been revealed also specific components of the Anisakis genus (< 7.2, 9, 19 and 25 kDa) that will be interesting in diagnosis.


Subject(s)
Anisakiasis/immunology , Anisakis/immunology , Antibodies, Helminth/immunology , Antigens, Helminth/immunology , Ascaridida Infections/immunology , Ascaridoidea/immunology , Animals , Anisakiasis/diagnosis , Antigens, Helminth/chemistry , Ascaridida Infections/diagnosis , Ascaris/immunology , Ascaris lumbricoides/immunology , Cross Reactions , Immunoblotting , Larva/immunology , Molecular Weight , Species Specificity , Toxocara/immunology
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