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At least 325 records · Page 18Linked to original sources
PubMed1997

Correlation between anti-Proteus antibodies and isolation rates of P. mirabilis in rheumatoid arthritis.

In a survey of 89 RA patients, carried out under code, Proteus mirabilis was isolated from the urine of 63% (47/75) of female (P < 0.001) and 50% (7/14) of male patients (P < 0.001), compared to a frequency of isolation in healthy women of 32% (38/119) and 11% (13/115) in healthy men. There was no significant difference in isolation rates between 37 non-RA patients and healthy controls. Sera from 20 patients with RA and 20 healthy controls were tested against P. mirabilis and Escherichia coli by an enzyme-linked immunosorbent assay. Antibodies against P. mirabilis but not to E. coli were significantly higher in the RA patients than in healthy controls (P < 0.001). Furthermore, a positive correlation was found between high anti-Proteus antibody levels in serum samples and the number of Proteus colony-forming units obtained from urine specimens of the 20 RA patients (r = +0.714, P < 0.001). These results support the suggestion of an aetiopathogenic role for P. mirabilis in RA.

Adult↗
PubMedDate not supplied

Cryoglobulinaemia in a patient with Proteus mirabilis sepsis.

Mixed polyclonal cryoglobulinaemia was evidenced in a 49-year-old woman admitted to our hospital because of Proteus mirabilis sepsis associated with polyarthralgia and purpuric manifestations on the lower limbs. Cryoglobulins and circulating immune complexes decreased during the second week of illness and disappeared after recovery. CH50, C3 and properdin factor B, which were low during the early phase of the illness, returned to normal; C4 was normal throughout. The rapid clearance of cryoglobulins and immune complexes and the restoration of a normal complement profile might all be explained by the gradual elimination of P. mirabilis due to chemotherapeutic treatment.

Complement C3↗
PubMedDate not supplied

Primary psoas abscess three years after ipsilateral nephrectomy.

We report an unusual case of primary, right psoas abscess caused by Proteus mirabilis which developed three years after ipsilateral nephrectomy. The diagnosis was established by computer tomography, recommended today as superior to other diagnostic methods of demonstration for the retroperitoneum.

Abscess↗
PubMed1987

Comparative activities of five antimicrobial agents in experimental Proteus pyelonephritis in mice.

Five antimicrobial agents, ciprofloxacin, ticarcillin, piperacillin, aztreonam and gentamicin, were compared both in vitro (MIC's, time-kill studies) and in vivo, in the treatment of experimental Proteus mirabilis pyelonephritis in mice. In the treatment of the pyelonephritis, ciprofloxacin was clearly superior to the other agents, both with respect to the percentage of sterile kidneys after treatment as with respect to the mean numbers of bacteria per kidney. The results can only be partially explained by the in vitro activities of the different antibiotics.

Animals↗
PubMed2003

Proteus mirabilis and rheumatoid arthritis: no association with the disease.

Proteus mirabilis (PM) is implicated in different studies in the pathogenesis of rheumatoid arthritis (RA) because of the structural homogeneity of its haemolysin B precursor with EQRRAA sequences in DRB 1 haplotype. The aim of the study was to compare the levels of antibodies specific to PM in the sera of patients with RA and healthy controls in our population. Serum samples from 78 consecutive RA patients and 75 healthy controls were analysed for the presence of IgG isotype and total immunoglobulins (IgG + IgA + IgM) against PM using enzyme-linked immunosorbent assay (ELISA) with two kinds of antigen preparations, whole bacteria and SDS-lysed bacterial extract. There was no significant increase in the concentrations of anti- Proteus antibodies (APA) in patients with RA compared to healthy controls in our population, when SDS-lysed bacterial extract or whole bacteria were used as antigen. The APA levels did not correlate with serum CRP levels. We conclude that P. mirabilis has no pathological or aggravating role in RA.

Adult↗
PubMed2007

Rheumatoid arthritis is linked to Proteus--the evidence.

Rheumatoid arthritis (RA) is a chronic inflammatory arthritic and potentially disabling condition, mainly affecting women of middle age and having characteristic clinical features. Various microbial agents were implicated in the causation of RA. Extensive literature based on the results of various genetic, microbiological, molecular, and immunological studies carried out by independent research groups supports the role of Proteus mirabilis bacteria in the etiopathogenesis of RA. New diagnostic markers and criteria and the use of a novel therapeutic protocol in the form of antibiotic and dietary measures are suggested to be used together with current treatments in the management of RA. Prospective longitudinal studies with the use of antimicrobial measures in patients with RA are required to establish the therapeutic benefit of this microbe-disease association.

Antibodies, Bacterial↗