DNA sequences encoding full-length outer surface protein (Osp) A were amplified from four joint fluid samples over 4.5 months from a patient with chronic Lyme arthritis, with a variant from wild type only found in sample 3. Rather than a mutation in vivo, these findings suggested a mixed infection in which BORRELIA: containing the wild-type and mutant ospA were waxing and waning in the patient'...

Functionally graded aluminium/zirconia metal matrix composite was fabricated using stir casting technique followed by horizontal centrifugal casting process and a hollow cylindrical functionally graded composite (150 x 150 x 16 mm) was obtained with centrifuging speed of 1200 rpm. The microstructural evaluation and hardness test was carried out on the outer and inner surface of the functionally...

BACKGROUND The adhesion process of Borrelia burgdorferi to susceptible host cell has not yet been completely understood regarding the function of OspA, OspB and OspC proteins and a conflict exists in the infection process. AIMS The adhesion rates of pathogenic (low BSK medium passaged or susceptible rat joint tissue co-cultivated) or non-pathogenic Borrelia burgdorferi (high BSK medium passag...

three strains of nontypeable haemophilus influenzae namely nthi-i , nthi-ii and nthi-iii were isolated from the sputum of patients with bronchitis and identified by biochemical, serological and electron microscopy. the polypeptide patterns of isolates were compared and found to have similar sodium dodecyl sulphate-polyacrylamide gel electrophoresis (sds-page) polypeptide patterns, although some...

background and objective: an outer membrane protein (omp) of helicobacter pylori namely oipa, is an important vir- ulence factor associated with peptic ulcer and gastric cancer risks. the purpose of this study was to isolate the 34 kda omp of h. pylori and evaluate its immunogenicity in experimental animals for rapid detection of more virulent h. pylori isolates. material and methods: sarcosine...