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1.
Egyptian Journal of Chest Diseases and Tuberculosis [The]. 2012; 61 (3): 41-45
in English | IMEMR | ID: emr-160094

ABSTRACT

The increase in asthma rates has been linked epidemiologically to the rapid disappearance of Helicobacter pylori, a bacterial pathogen that persistently colonizes the human stomach. Recent evidence indicates that, H. pylori may have protective effects on allergic diseases. The aim of this study was to explore the relationship between asthma and H. pylori infection in a population with high prevalence of H. pyloriinfection. One hundred and seventeen asthma cases were eligible for the study in addition to 86 non asthma cases as control. Pre and post - bronchodilator spirometry, assay of Total serum immunoglobulin E [IgE] by enzyme immunoassay technique [ELISA] and [14]C Urea Breath Test [UBT] were done. Out of 41 asthmatic cases with positive H. pylori were 22 patients had mild asthma, 14 had moderate asthma, and 5 only had severe asthma with statistically significant difference between them. The mean serum level of Total IgE was significantly higher [190.04 +/- 111.9] in patients group than control group [94.13 +/- 46.49] with p-value 0.000, while the mean UBT was significantly lower [325.85 +/- 261.35] in patients group than control group [1068.67 +/- 680.7] with p-value 0.000. AS regard pulmonary function tests [FEV1 and FVC], there was statistically significant difference between positive H. pylori asthmatic and negative H. pylori asthmatic. We demonstrate an inverse association between H. pylori and asthma in a population with a high prevalence of H. pylori


Subject(s)
Humans , Male , Female , Helicobacter pylori/isolation & purification , Helicobacter Infections/complications , Immunoglobulin E/blood , Spirometry/statistics & numerical data , Enzyme Multiplied Immunoassay Technique/statistics & numerical data , Respiratory Function Tests/statistics & numerical data
2.
Asunciòn; EDUNA; sept. 1995. 13-28 p. tab, graf.
Monography in Spanish | LILACS, BDNPAR | ID: lil-219954

ABSTRACT

Trescientos setenta y dos muestras de suero fueron estudiadas para evaluar la sensibilidad, especificidad, reproductibilidad y estabilidad de una prueba de ELISA "TOXO TEST, IICS" para detecciòn de anticuerpos IgG e IgM anti-Toxoplasma gondii. Los resultados fueron obtenidos por comparaciòn con los mètodos de inmunofluorescencia indirecta, immunoblotting y ELISA doble sandwich. Se determinaron valores de sensibilidad y especificidad mayores a 95 por ciento con un valor predictivo positivo de 98 por ciento en el ELISA IgG que posibilita su utilizaciòn en el diagnòstico serològico en nuestro paìs. Con el mètodo de ELISA IgM se obtuvo alta sensibilidad y especificidad en sueros de pacientes con infecciòn menor o igual a 1 año, pero se obtuvieron reacciones falsas positivas en pacientes sin sintomatologìa clinica que tenian infecciones antiguas o crònicas. En la evaluaciòn se detectò ademàs una estabilidad de 12 meses en todos los componentes del reactivo y la precisiòn interensayo en los sueros controles menor a 20 por ciento de coeficiente de variaciòn. Los resultados obtenidos en la evaluaciòn del "TOXO TEST, IICS" nos muestran la factibilidad de su utilizaciòn en la evoluciòn de una infecciòn aguda por toxoplasmosis y en el diagnòstico de una infecciòn antigua crònica. Sin embargo no se recomienda la utilizaciòn del ELISA IgM para el diagnòstico de infecciòn aguda de un paciente sin sintomatologìa clìnica por las reacciones falsas positivas detectadas en pacientes crònicos, por lo cual se requiere una prueba mas especìfica que elimine los factores de interferencia...


Subject(s)
Toxoplasma/parasitology , Immunoglobulin M/deficiency , Enzyme-Linked Immunosorbent Assay/nursing , Toxoplasmosis/diagnosis , IgG Deficiency/diagnosis , Enzyme Multiplied Immunoassay Technique/nursing , Enzyme Multiplied Immunoassay Technique/statistics & numerical data
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