PubMed Health⌕ Search

Biomedical subjects

B Zivanović

Publications and source records attributed to B Zivanović.

7 recordsLinked to original sources
PubMedDate not supplied

[Ixodes ricinus proven as a vector of Lyme borreliosis in Yugoslavia].

263 fasting female Ixodes ricinus were examined for Borrelia burgorferi, the vector of Lyme borreliosis. Female ticks were collected by flagella in the biotopes (Belgrade and Osijek) in which ticks bite patients with Lyme borreliosis. Borrelia burgorferi was proved in 58 (22%) of 263 female ticks in the native preparations of the intestinal contents by darkfield microscopy. In macerates of two groups of 5 female ticks each, Borrelia burgorferi was isolated by cultivation in the modified Kelly nutrient media for borrelia. The supposition that Ixodes ricinus is the vector of Lyme borreliosis in Yugoslavia is confirmed.

Animals↗
PubMedDate not supplied

[Risk of infection with Borrelia burgdorferi in an area endemic for Lyme disease].

The results of the study of the prevalence of antibodies against Borrelia burgdorferi in three categories of subjects from the endemic region of Lyme disease in the northeast Croatia are reported. The study comprised 265 subjects: 97 living in the rural region, 51 forest rangers working in this region and 117 members of the Yugoslav People's Army who spent a certain period of time in this region. Positive titer of specific antibodies were found in 11.3% of local inhabitants, 25.5% forest rangers and 6% soldiers. Serologic testing was performed by the direct immunofluorescent method with aspiration and the titer in the dilution of 1:80 was considered significant. Some risk factors causing disease as well as the relationship between inapparent and clinically manifested cases of infection are pointed out.

Adult↗
PubMedDate not supplied

[Behavior of Zn-phosphate cement in parafunctional conditions. 2. Wear resistance of Zn-phosphate cement].

The paper deals with the phenomenon of complex stress of the Zn-phosphate cement when slope specimens are loaded. In a 5 degree slope the horizontal component was only 0.7% whereas this value began to increase up to 45.3% when the slope was 40 degrees. It is of interest that in the slant specimens the significant part of the total force referred to horizontal component, particularly expressed in parafunctions, which speaks for the unfavourable stress type suffered by specimen slope. The second part of the experiment revealed the degree of wear of Zn-phosphate cement parafunctional activities. The value of 1800 which presents the number of contacts realized by a patient with parafunctions only in the course of daily action of occlusive dental surfaces, was selected as the maximal number of pulses. The following was established: with the increase of pulses the degree of wear was also increased; the wear was more expressed in the mobile specimen; the degree of wear of the mobile specimen was not a linear function of the number of pulses contrary to the fixed one in which a linear dependence was observed.

Dental Occlusion↗
PubMedDate not supplied

[Diseases of the upper segment of the gastrointestinal tract and Helicobacter pylori infection].

Helicobacter pylori infection is the most frequent infection in humans. It is assumed that over 50% of total world population suffer from this infection. Chronic gastritis is the most usual consequence of this infection. Development of peptic ulcer appears in case of 10 to 20 percent of infected people with the increased risk of malignancy. In the group of 819 examined patients at the Clinic for gastroenterology and hepatology of the Institute for internal diseases, the presence of helicobacter pylori was confirmed in case of 69.18% of patients. The infection was equally observed in both sexes and its frequency was higher with the increase of age, reaching its peak in the sixth decade of life (75.24%). The highest frequency was found in patients with duodenal ulcer (84.85%) and hyperplastic stomach polyp (81.82%) and lowest in case of resected stomach (56.52%). We also establish the dependence of the type and degree of pathohistological changes and the Helicobacter pylori infection.

Adolescent↗