Influence of protective genes in the HLA system on renal graft survival.
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Biomedical subjects
Publications and source records attributed to J Hałasa.
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DESIGN: We have analyzed the frequency of HLA class I and II antigens in high-risk pregnancy. MATERIAL AND METHODS: Altogether, 22 gravida hospitalized at the Department of Pathology of Pregnancy and Labour, Pomeranian Medical University in Szczecin formed group I (PE) with 12 cases of preeclampsia and group II with 10 cases of the antiphospholipid syndrome (APS). The control group included 40 multigravida. Typing of HLA class I and II antigens was done using the two-stage microcytotoxic test (NIH) of Mittal. RESULTS: Antigen B35 was found more frequent in preeclampsia and antiphospholipid syndrome groups than in multigravida. Furthermore, a statistically significant difference in the frequency of homozygotes for the HLA-DR locus was noted between groups PE and APS on one hand, and controls on the other. CONCLUSIONS: Identical HLA-DR3, DR4 and DR5 antigens were found more frequently in preeclampsia, while identical DR4 and DR6 in the antiphospholipid syndrome.
The variety of microbial pathogenic factors and relations between human and bacterial cells in allergo-inflammatory diseases are presented. A special attention have been paid to sugar-lectin interactions in pseudoallergic processes. The role of specific antibodies as modifiers of basophils releaseability is considered.
The fourth component of complement (C4) phenotype and allele frequencies were studied in 3 groups of unrelated children affected with hepatitis B virus (HBV) infection (25 with glomerulonephritis (GN), 39 with chronic active hepatitis (CAH), 24 with Gianotti-Crosti syndrome (GS-S)) and in 100 unrelated healthy individuals (H). Ten phenotypes in GN, 14 in CAH, 10 in GC-S and 23 in H were found. Some rare phenotypes appeared in the individual cases of ill children. Statistical analysis was performed by chi-square test. Each group was compared to the others. We found significantly higher frequency of the A3B2,Q0 phenotype in CAH than in H as well as significant increase of the A x 4 gene frequency in GC-S as compared to H. However, these events could be caused by limited number of tested patients. We suspect that the association between C4 alleles and immune-complex diseases, studied here, does not rather exist.
A retrospective analysis of the bacterial flora of acne lesions was carried out in 320 patients. Atypical flora was isolated very rarely. The pathogenic flora was found most frequently in the Autovaccine Laboratory when the microbiological material was taken directly onto plates and the investigation was repeated several times. Atypical flora was isolated only from three cases. Propionibacterium and Staphylococcus epidermidis were found to be sensitive to the antibiotics routinely used in the treatment of acne. The highest antibacterial effect in vitro against both these species was demonstrated using rifampicin and tetracycline.
The discriminating and prognostic value of the expression of ABH(0) and TF antigens in tumour cells of 76 patients with urinary bladder tumours was evaluated. In patients with superficial tumours the most frequently defined phenotype was ABH(-) TF(+) and in those with deep tumours ABH(-) TF(-). The lowest frequency of recurrences was seen in patients with TFCr(+) antigenic phenotype and no patient died in this group. The mean lifespan of patients with TF(-) tumours was shorter (21 months) than of those with TF(+) tumours. For detection of tumours with higher risk of recurrences an analysis of the combination of markers revealed to be more predictive than analysis of a single marker.
Children with mumps meningitis, with mumps without meningitis and healthy subjects were examined for Gm 1, 2, 3, 5, 21 allotypes and for the Km 1 allotype. The comparison of the frequencies of Gm and Km phenotypes in three tested groups (each to the other) did not reveal significant differences. An association between mumps meningitis and the Gm or Km phenotypes was not found.
Patients with CAH, extrahepatic HBV manifestation and healthy children were studied for presence of Gm 1, 2, 3, 10, 21 factors and Km 1 factor. significantly higher frequency of Gm (1, 2, 3, 10, 21) phenotype was shown in CAH group as compared with the other two groups. Relationship between Km factors and examined groups was not found.
The authors have examined 379 women for infection by Chlamydia trachomatis, performing vaginal smears and routine bacterial cultures. C. trachomatis was discovered in 33.2% of the women, most frequently accompanied by erosion of the collum, cervicitis and CIN-Ca. Women with C. trachomatis had the following levels of vaginal purity: 1-44.4%, 2-23.0%, 3 and 4-29.4%, 3.2% -leukocytes only. Leukocytes were present in significantly more women with level 1 of vaginal purity than in the control group. Additional infections (Gardnerella vaginalis, Streptococcus agalactiae, Candida albicans, Escherichia coli and Trichomonas vaginalis) were found in only a small percentage of women with C. trachomatis, just as in controls. The presence of leukocytes or level 1 of vaginal hygiene with leukocytes may favour C. trachomatis, just as in controls. The presence of leukocytes or level 1 of vaginal hygiene with leukocytes may favour C. trachomatis infection, therefore these cases should be subjected to a more thorough examination.
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The C3 and BF phenotype frequencies were studied in children with mumps meningitis. No significant differences were found between this group and other groups; children with mumps without meningitis and healthy children.
In this study an indirect immunofluorescence method was applied. Determinations regarded the level of anti-H37Rv antibodies in patients with bacteriologically confirmed lung tuberculosis and in a control group consisting of healthy volunteers. Antibody levels were significantly higher in sick patients. We conclude that this method may be applied as a supplementary diagnostic test in doubtful cases and that it can prove useful as screening test for investigation of groups of population especially at risk from tuberculosis. Applied method of indirect immunofluorescence is easy to perform, quick (time of the test takes about 3 hours), available in Poland, and cheaper than ELISA.
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