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Results for “BARTONELLA INFECTIONS”

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PubMed1980

[Correlations between gastric erosions and duodenal ulcer. Endoscopic study].

123 varioliform, 105 aphthous and 48 haemorrhagic flat erosions were noted in 2618 gastroduodenoscopies. A high incidence of erosions were associated with duodenal ulcer (43% of duodenal ulcers), especially in varioliform types and antrally. It is suggested that antral varioliform erosions form an integrating part or even the sole expression of an ulcer, and thus be seen as "sentinels" of an existing, potential or prior duodenal ulcer. Based on statistics, this view is supported by the maximum stimulus acidograms, which show that the PAO in antral varioliform erosions form an integrating part or even the sole expression of an ulcer, and thus be seen as "sentinels" of an existing, potential or prior duodenal ulcer. Based on statistics, this view is supported by the maximum stimulus acidograms, which show that the PAO in antral varioliform erosggested that antral varioliform erosions form an integrating part or even the sole expression of an ulcer, and thus be seen as "sentinels" of an existing, potential or prior duodenal ulcer. Based on statistics, this view is supported by the maximum stimulus acidograms, which show that the PAO in antral varioliform erosion without duodenal ulcer is within the range for duodenal patients. The employment of PAO is thus proposed in all cases of isolated antral varioliform gastric erosion, particularly in the absence of other possible causes.

Adult↗
PubMed1995

Bartonellosis.

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Animals↗
PubMed1994

Diagnostic tests for Rocky Mountain spotted fever and other rickettsial diseases.

Rickettsial diseases continue to confound physicians because of their usually sporadic occurrence and nonspecific clinical presentation. In past years, diagnosis was confirmed only during convalescence; however, newer, more widely available methods, such as antigen detection and improved in vitro cultivation, have enabled a diagnosis at a time when therapeutic decisions are made. Molecular nucleic acid-based techniques have also expanded the spectrum of etiologic agents and illnesses caused by rickettsiae.

Angiomatosis, Bacillary↗
PubMed1997

[Rickettsioses: the epidemiological assessment].

Microbe of taxonomical families Rickettsiaceae aceal and Bartonellaceae of Rickettsiales order have caused not less than 14 nosological forms of disease among people in different parts of the world. About 8 of them--in Russia and in the former Soviet Republics. These diseases are not unequivocal from epidemiological point of view. Trench, Marseilles and other forms of fever, murine typhus, vesicules rickettsia, etc. have been liquidated and never recurred for 30-40 years. Prowazek's [correction of Provachek's] rickettsia in its two forms has lost its epidemiological meaning in Russia and is next to full disappearance. However, some types of fever still represent a definite threat to public health. Some diseases, like ehrlichiosis, Bartonella, tsutsugamushi fever have not yet been studied to the end in Russia.

Bartonella Infections↗
PubMed1997

Coinfection with Bartonella clarridgeiae and Bartonella henselae and with different Bartonella henselae strains in domestic cats.

Bartonella clarridgeiae and several strains of Bartonella henselae, the agent of cat scratch disease, with variations in the 16S rRNA gene have been found to infect the blood of cats. An epidemiologic study of Bartonella infection in domestic French cats revealed that of 436 cats sampled, 5 cats (1.1%) were coinfected with B. henselae and B. clarridgeiae and 2 cats (0.5%) were coinfected with two strains of B. henselae with variations in the 16S rRNA gene, B. henselae type I and type II. In an indirect immunofluorescence assay, coinfected cats tested positive for both Bartonella species at titers of > or = 128. Identification of the colonies was achieved by preformed enzyme analysis, PCR-restriction fragment length polymorphism analysis of the citrate synthase gene, and 16S rRNA gene sequencing. Colony size differences in mixed culture allowed differentiation of the Bartonella species. The coinfection of cats with two Bartonella species or variants of the same species raises concern about the possibility of dual infection in humans. The development of a polyvalent vaccine targeted against the most pathogenic or invasive strains may be a means of protecting cats and man from infection.

Animals↗
PubMed1998

Isolation of Bartonella spp. from embryos and neonates of naturally infected rodents.

Embryos and neonatal offspring of wild-captured cotton rats (Sigmodon hispidus) and white-footed mice (Peromyscus leucopus) were tested for the presence of Bartonella spp. Isolates of Bartonella spp. were obtained from 18 of 31 embryos and 7 of 19 neonates from bacteremic dams of the two species; no isolates were obtained from material from non-bacteremic dams. Sequence analysis demonstrated that the isolates from embryos and neonates matched the phylogenetic group of Bartonella spp. isolates obtained from the mother. No antibodies to homologous Bartonella spp. antigens were detected in maternal and neonatal blood or embryonic tissue. These findings suggest the possibility of vertical transmission of Bartonella spp. among natural rodent hosts.

Animals↗
PubMed1999

Identification of Bartonella-specific immunodominant antigens recognized by the feline humoral immune system.

The seroreactivities of both naturally and experimentally infected cats to Bartonella henselae was examined. Serum samples collected weekly from nine cats experimentally infected with B. henselae LSU16 were tested by enzyme-linked immunosorbent assay (ELISA) and Western blot analysis. The magnitude and isotype of the antibody response were investigated by ELISA. Western blot analysis allowed the identification of at least 24 Bartonella-specific antigens recognized by the cats during infection. Antibody titers to specific antigens, as determined by Western blot analysis, ranged from 10 to 640 and varied among the different antibody-antigen interactions. Absorption of sera from an experimentally infected cat, using whole cells and cell lysates of various Bartonella species and other bacteria that commonly colonize cats, supported the identification of those Bartonella-specific antigens recognized by the experimentally infected cats. Furthermore, a number of possible species- and type-specific antigens were identified. Finally, sera obtained from cats at local animal shelters were screened for the presence of antibodies directed against the Bartonella-specific bands identified in the experimentally infected cats. A number of Bartonella-specific antigens have been identified to which strong antibody responses are generated in both experimentally and naturally infected cats, some of which may be useful in diagnosing species- and/or type-specific infections. In addition, the results from these experiments will lead to the development of monoclonal antibodies targeted against those genus-, species-, and type-specific antigens.

Animals↗