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Shriniwas

Publications and source records attributed to Shriniwas.

At least 37 records · Page 2Linked to original sources
PubMed1987

Soluble antigen fluorescent antibody (SAFA) test is not useful in childhood tuberculosis.

The diagnostic value of the soluble antigen fluorescent antibody (SAFA) test in childhood tuberculosis was studied in 117 children in the age group 0-12 years; 79 cases belonged to the study group, 23 children were non-tuberculous controls and 15 were tuberculin-negative healthy controls. The SAFA test was positive in 35 of 44 children with only pulmonary tuberculous lesions (80%) and in 21 of 35 children with other types of tuberculosis (60%). In the 23 non-tuberculous and 15 healthy controls it was positive in 11 cases (48%) and 7 cases (47%), respectively. The sensitivity, specificity and predictivity of the test were found to be 71%, 53% and 72%, respectively. The diagnostic value of the SAFA test was thus found to be low in childhood tuberculosis, especially in disseminated disease and tuberculous meningitis.

Child↗
PubMed1986

Prevalence of protease and elastase production by clinical isolates of Pseudomonas aeruginosa in relation to aeruginocine typing patterns.

Sixty six consecutive P. aeruginosa isolates from heterogeneous clinical specimens were subjected to aeruginocine (pyocine) typing and assayed for in vitro protease and elastase production by a simple and reproducible qualitative test. The 45.4% of the clinical isolates were found to be both protease and elastase (P + E +) producers; 40.9% were only protease producers (P + E -) and 13.6% were non producers (P - E -). Aeruginocine code 7777 strains were found to be predominant among P + E + and P + E - types, as 48.2% and 51.7% isolates belonged to the types, respectively, suggesting thereby the virulence of this aeruginocine type in P. aeruginosa infections and the possible association of protease and elastase production with aeruginocine production.

Bacteriophage Typing↗
PubMed1986

Serodiagnosis of intestinal tuberculosis by the soluble antigen fluorescent antibody test (SAFA test).

The diagnosis of intestinal tuberculosis can only be established by the tissue obtained during surgery or endoscopy. We investigated the role of the soluble antigen fluorescent antibody (SAFA) test with the possibility that it may prove to be a valuable technique for the serodiagnosis of intestinal tuberculosis. The sera of 38 patients and 60 control subjects were studied. Mycobacterial saline extract was used as an antigen in the test. Thirty-two (84%) of 38 patients with intestinal tuberculosis yielded positive values (fluorescence coefficient greater than 3). Among the control subjects a false positive result was observed in only one patient who had eosinophilic enteritis. Patients with intestinal tuberculosis had a significantly higher level of antibodies than patients with non-tuberculous intestinal disease and healthy subjects. These results suggest that this technique may be used for the diagnosis of intestinal tuberculosis and in differentiating it from other non-tuberculous intestinal diseases.

Adolescent↗
PubMed1985

Diagnosis of ileocecal and colonic tuberculosis by colonoscopy.

The colonoscopic findings in 11 proven cases of ileocecal tuberculosis consisted of deformed ileocecal valve in all 11 and contracted cecal lumen in 10. This was associated with mucosal nodules predominantly around the ileocecal valve, pseudopolypoid folds, and mucosal protuberance. Two patients had an isolated cecal ulcer. In three of the 11 patients the examination enabled a histologic diagnosis to be made on the basis of typical granuloma. In the other four patients Mycobacterium tuberculosis was isolated from the tissue obtained through biopsies.

Adult↗
PubMed1985

Efficacy of three mycobacterial antigens in the serodiagnosis of tuberculosis.

Three different antigens were tested for detection of mycobacterial antibodies. The 3 antigens were mycobacterial saline extract (MSE), mycobacterial sonicate (MSO) and PPD. For detection, both the soluble antigen fluorescent antibody (SAFA) and the enzyme-linked immunosorbent assay (ELISA) tests were used. We used 88 serum samples (50 from clinically, radiologically and/or bacteriologically proven cases of tuberculosis, 8 from proven cases of leprosy and 30 from healthy controls). With MSE antigen, both the tests were found to be highly sensitive and specific. MSO antigen was found to give better results in ELISA than in SAFA. The sensitivity and specificity of ELISA as well as SAFA test was reduced when PPD was used as an antigen. However, both ELISA and SAFA tests revealed that the mean antibody level in the patients with active tuberculosis was significantly higher than that in the healthy controls, irrespective of the antigen used.

Antibodies, Bacterial↗
PubMed1985

Soluble antigen fluorescent antibody test in serodiagnosis of pulmonary tuberculosis.

The significance of the modified soluble antigen fluorescent antibody (SAFA) test in the laboratory diagnosis of pulmonary tuberculosis has been evaluated. The test has been established by using mycobacterial saline extract as antigen. A total of 191 serum samples were subjected to this test; of these, 126 were from cases of pulmonary tuberculosis (untreated, and at different stages of treatment, 2 were from cases of non-tuberculous mycobacteriosis), 65 from control cases including tuberculin reactors and non-reactors, patients suffering from diseases other than tuberculosis and neonatal cord blood. None of the 123 sera from tuberculous patients were negative by the SAFA test. None of the strong reactors, 2 each were from tuberculin positive and negative cases and 3 from cases suffering from chest infections other than tuberculosis.

Animals↗
PubMed1985

Intestinal tuberculosis: bacteriological study of tissue obtained by colonoscopy and during surgery.

The biopsy tissue obtained during surgery and colonoscopy from 28 cases of intestinal tuberculosis was utilized for isolation and identification of mycobacteria. The mycobacteria could be isolated in 12 (42%) of 28 patients. Colonoscopy can be a successful method of bacteriological diagnosis of intestinal tuberculosis. Mycobacteria were scarcely ever seen on histological sections. Combined use of guinea pig inoculation and culture was more rewarding than either alone. The yield of positive cultures was greater in tissue with caseation necrosis, though organisms were also recovered from tissues showing non-caseating granuloma and non-specific inflammation. The intestinal tissue gave more positive cultures (41%) than did lymph nodes (14%). The organisms were isolated in patients with or without pulmonary lesions and chemotherapy in the past. All the organisms were isolated as Mycobacterium tuberculosis.

Adolescent↗