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Analysis of sIgA concentrations in the contents of the cervical canal of the uterus and of the oral cavily in women with Candida or without fungi in ontocenoses of these organs. The aim of the study was to search for fungi in ontocenoses of genital organs and oral cavity (the fungal reservoir for multifocal infections) in women; evaluation of the concentration of sIgA in the contents of the cervical canal of the uterus and of the oral cavity. 102 women (age: 18- 35 years) were examined. Fungi were isolated from ontocenoses of the vagina and the oral cavity; axenic strains were differentiated with API 20 C and API 20 C AUX tests (bioMerieux). The concentrations of sIgA in the content of the cervical canal of the uterus and from the oral cavity were evaluated by LC-Partigen IgA (Behring) tests. Candida occurence in the oral cavity was significant (p<0,02) higher than in the vagina. Candida albicans (6 codes) was the predominat species; there were also C. tropicalis, C. kefyr, C. krusei, C. guilliermondii and C. glabrata. There were no significant differences between sIgA concentrations and the presence or absence of fungi in the vagina or oral cavity.
Sera of 51 cows, including 8 cows with a nodular form of epizootic bovine leukemia, from cowsheds of a high percent of BLV infection (more than 80%) and their foetuses have been examined. The presence and content of IgG, IgM and IgA in sera of cows and their foetuses was determined by the method of a radial single immunodiffusion using standard kits (Miles). The highest content of IgG (1946 mg/100 ml) was noted in sera of cows with a subclinic form of leukemia and the lowest one (1579 mg/100 ml) in seropositive cows. However, these differences were not statistically significant. The level of serum IgM was significantly higher in healthy cows (536 mg/100 ml) and in sera of seropositive cows (486 mg/100 ml) comparing to cows with a permanent lymphocytosis (419 mg/100 ml) and with histopathological lesions (446 mg/100 ml). The content of IgA ranged in all groups from 57 to 60 mg/100 ml. In a group of foetuses from cows with a permanent lymphocytosis the level of serum IgM was higher (13.9 mg/100 ml) comparing to other groups (16.5—17.6 mg/100 ml). A slightly higher level of all immunoglobulin classes was observed in seropositive foetuses against EBL.
Immunocapture assays ISAGA PLUS IgA/IgM (bioMerieux) and IgE ISAGA were used to determine their usefulness in the diagnosis of acquired and congenital toxoplasmosis. Specific IgM, IgA and IgE antibodies were tested in 134 patients, namely pregnant women who seroconverted during gestation (n= 20), children with congenital toxoplasmosis (n= 5), patients with toxoplasmic lymphadenitis (n= 56) and immunocompetent individuals with chronic Toxoplasma gondii infection (n= 53). Altogether 172 sera were examined. Specific IgM antibodies were detected in all sera from pregnant women (100%) with recent T. gondii infection (1- 8 weeks after seroconversion), in all patients with toxoplasmic lymphadenopathy (1-3 months after onset of symptoms) and in their control examinations after 2 and 5 months (100%) and also in 35 (66%) out of 53 patients with chronic infection. In infants with congenital toxoplasmosis IgM were found only in one new-born; equivocal results were obtained in 3 children during the asymptomatic serological reactivation in the second year of life. Specific IgA antibodies were present in sera from 15 (75%) out of 20 women seroconverted during pregnancy; in 3 cases the results were equivocal. IgA antibodies were detected in sera from 30 (81.1%) out of 37 patients with toxoplasmic lymphadenitis examined once; in 19 patients examined 3 times IgA antibodies were present in all the cases in the first serological examination performed when clinical symptoms were first observed (100%), in 17 patients after 2 months (89.5%) and in 11 patients after 5 months (57.9%). IgA antibodies were also detected in 21 sera (39.6%) from patients with chronic T. gondii infection. In children with congenital toxoplasmosis IgA antibodies were found in 3 cases during serological reactivation after discontinuation of pyrimethamine-sulfadiazine therapy; in these cases equivocal results of IgM antibodies were present, and positive result of IgE antibodies in one case. Specific IgE antibodies were detected in sera from 17 (85%) out of 20 women with seroconversion and in 18 patients with lymphadenopathy (32.1%); in the last group IgE antibodies were not present in the follow-up examination after 5 months. IgE antibodies were detected only in 5 cases (9.4%) with chronic infection. IgA and IgE antibodies in ISAGA begin to appear about a week later than IgM antibodies; in sera collected between the 2nd and 3rd week after invasion the positive results were obtained in all cases (100%). Therefore, ISAGA PLUS IgA/IgM (bioMerieux) is useful for the diagnosis of recent T. gondii infection especially in women with suspected seroconversion during pregnancy. ISAGA PLUS IgA/IgM is more sensitive than any conventional method routinely used and so far is a specially eflicient technique for newborns and infants suspected for congenital infection and/or in diagnosing congenital toxoplasmosis during immunological recrudescence. This test has a limited value in toxoplasmosis with lymphadenopathy by reason of possibility of a long persistence of IgM and IgA antibodies detected by ISAGA. Detection of specific IgE antibodies using ISAGA technique may be useful for differential diagnosis of acute and chronic phase of T. gondii infection and also in some cases of serological reactivation of congenital toxoplasmosis.
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