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Revista Brasileira de Ginecologia e Obstetrícia. 2009;31(5):249-253
DOI 10.1590/S0100-72032009000500008
PURPOSE: to compare the expression of tumor necrosis factor-alpha (TNF-α) in ovular membranes with premature rupture (MPR) and with opportune rupture; to verify the association between the expression of the TNF-α in ovular membranes and the degree of chorioamnionitis, correlating the expression of the TNF-α and the membranes' time of rupture. METHODS: ovular membranes from 31 parturients with MPR, with gestational ages over 34 weeks, and from parturients with opportune membranes' rupture, with gestational ages equal or over 37 weeks. Chorioamnionitis detection has been done by histopathological analysis. The evaluation of the TNF-α expression has been done by immune-histochemical technique, using the labile streptavidin-biotin-peroxidase (LSAB) method. RESULTS: the average rupture time was 16.6 hours. The ratio of the TNF-α expression in the Control and Study Groups did not show a significant difference (χ2=6.6; p=0.08). In the Study Group, there was no correlation between the degree of chorioamnionitis and the intensity of TNF-α expression (Spearman's coefficient (Rs)=0.4; p=0.02). CONCLUSIONS: there was no significant difference between the TNF-α expression in ovular membranes with premature or opportune rupture; in the Study Group, there was significant association between TNF-α expression and the degree of chorioamnionitis, and there was no association between rupture time and the intensity of TNF-α expression.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2009;31(5):249-253
DOI 10.1590/S0100-72032009000500008
PURPOSE: to compare the expression of tumor necrosis factor-alpha (TNF-α) in ovular membranes with premature rupture (MPR) and with opportune rupture; to verify the association between the expression of the TNF-α in ovular membranes and the degree of chorioamnionitis, correlating the expression of the TNF-α and the membranes' time of rupture. METHODS: ovular membranes from 31 parturients with MPR, with gestational ages over 34 weeks, and from parturients with opportune membranes' rupture, with gestational ages equal or over 37 weeks. Chorioamnionitis detection has been done by histopathological analysis. The evaluation of the TNF-α expression has been done by immune-histochemical technique, using the labile streptavidin-biotin-peroxidase (LSAB) method. RESULTS: the average rupture time was 16.6 hours. The ratio of the TNF-α expression in the Control and Study Groups did not show a significant difference (χ2=6.6; p=0.08). In the Study Group, there was no correlation between the degree of chorioamnionitis and the intensity of TNF-α expression (Spearman's coefficient (Rs)=0.4; p=0.02). CONCLUSIONS: there was no significant difference between the TNF-α expression in ovular membranes with premature or opportune rupture; in the Study Group, there was significant association between TNF-α expression and the degree of chorioamnionitis, and there was no association between rupture time and the intensity of TNF-α expression.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2007;29(9):478-483
DOI 10.1590/S0100-72032007000900007
PURPOSE: to quantify the presence of antithyroperoxidase (anti-TPO) and antithyroglobulin (anti-TG) antibodies, and the plasmatic concentrations of thyrotropin (TSH) and free thyroxine (FT4) in normal pregnant women. METHODS: a hundred twenty-seven pregnant women, residing in São Paulo, aged from 14 to 44 years old and gestational age > 16 weeks, determined by ultrasound performed before the 20th week of pregnancy were included in a transversal study performed in the prenatal clinic of Santa Casa de Misericórdia de São Paulo, from January 2003 to September 2004. Pregnant women using medicines or with thyroidopathy history were excluded. Antithyroperoxidase and antithyroglobulin antibodies were quantified by chemiluminescence immunoassay. The immunofluorimetry technique by time-resolved was used for determining the thyrotrophin and free thyroxine. The Student's t test, with significance of 5%, was used for analyzing the results. RESULTS: the frequency of antithyroid antibodies was 12.6% (8.6% of anti-TPO antibodies, and 4.6% of anti-TG antibodies). The average of TSH concentrations was 2.13±1.0 µU/ml, and the average of T4L was 0.9±0.5 ng/dl. It was observed alteration of the thyroid function in ten pregnant women (8%). Three of them had diagnosis of hypothyroidism: one in the clinical form of the disease, with increased TSH and decreased FT4; two in the subclinical form with increased TSH and normal FT4. Five presented decreased TSH and increased FT4, consistent with clinical hyperthyroidism and two were diagnosed with subclinical hyperthyroidism, with decreased TSH concentrations only. CONCLUSIONS: the frequency of antithyroid antibodies was 12.6% in pregnant women, the antithyroperoxidase antibodies being predominant over the antithyroglobulin antibodies. It was observed some thyroid dysfunction in 8% of the cases with alterations of TSH and/or T4L.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2007;29(9):478-483
DOI 10.1590/S0100-72032007000900007
PURPOSE: to quantify the presence of antithyroperoxidase (anti-TPO) and antithyroglobulin (anti-TG) antibodies, and the plasmatic concentrations of thyrotropin (TSH) and free thyroxine (FT4) in normal pregnant women. METHODS: a hundred twenty-seven pregnant women, residing in São Paulo, aged from 14 to 44 years old and gestational age > 16 weeks, determined by ultrasound performed before the 20th week of pregnancy were included in a transversal study performed in the prenatal clinic of Santa Casa de Misericórdia de São Paulo, from January 2003 to September 2004. Pregnant women using medicines or with thyroidopathy history were excluded. Antithyroperoxidase and antithyroglobulin antibodies were quantified by chemiluminescence immunoassay. The immunofluorimetry technique by time-resolved was used for determining the thyrotrophin and free thyroxine. The Student's t test, with significance of 5%, was used for analyzing the results. RESULTS: the frequency of antithyroid antibodies was 12.6% (8.6% of anti-TPO antibodies, and 4.6% of anti-TG antibodies). The average of TSH concentrations was 2.13±1.0 µU/ml, and the average of T4L was 0.9±0.5 ng/dl. It was observed alteration of the thyroid function in ten pregnant women (8%). Three of them had diagnosis of hypothyroidism: one in the clinical form of the disease, with increased TSH and decreased FT4; two in the subclinical form with increased TSH and normal FT4. Five presented decreased TSH and increased FT4, consistent with clinical hyperthyroidism and two were diagnosed with subclinical hyperthyroidism, with decreased TSH concentrations only. CONCLUSIONS: the frequency of antithyroid antibodies was 12.6% in pregnant women, the antithyroperoxidase antibodies being predominant over the antithyroglobulin antibodies. It was observed some thyroid dysfunction in 8% of the cases with alterations of TSH and/or T4L.