No abstract available.
Immunologic Tests* ; Tuberculosis, Meningeal*

No abstract available.
Immunologic Tests ; Tuberculosis

3 consecutively produced lots of BCG vaccine were verified. Results showed that the filling and freeze-drying process and the quality of vaccine were met the technique requirements
Immunologic Tests ; Enzyme-Linked Immunosorbent Assay ; Gnathostoma

Agglutination Tests ; HIV Infections ; diagnosis ; virology ; Immunoblotting ; Immunologic Tests

Animals ; Carcinogenicity Tests ; Cytotoxicity Tests, Immunologic ; Humans ; Mutagenicity Tests ; Soot ; toxicity

The cytotoxicity of medical ultrasonic couplant was tested by MTT assay and agar overlay test. By MTT assay, when the inoculum density was high, the cytotoxicity level was low, or vice versa. The cytotoxicity grade tested by agar overlay was not accord to MTT assay's too. MTT assay is suitable to test the cytotoxicity of medical ultrasonic couplant because it is quantitative and more sensitive, however, the experimental condition and the preparative method of extraction should be determined.
Animals ; Cell Line ; Colorimetry ; Cytotoxicity Tests, Immunologic ; methods ; Mice ; Ultrasonics

When some testing institutions performed biological evaluation to the disposable medical syringe piston, cytotoxicity was found. According to the biological evaluation testing Selection Guide proposed by Ministry of Health and the Comments of Sample Provider, We performed biological evaluation to one sample by using 5 tests of basic biological evaluation. Cytotoxicity was found, which was probably caused by the residue of the lotion. This research provides reference for objective evaluation of disposable medical syringe piston and safe guarantee of the product.
Cytotoxicity Tests, Immunologic ; Disposable Equipment ; Syringes ; adverse effects

BACKGROUND:The tuberculin skin test, which has been used for years for the diagnosis of latent tuberculosis, has many limitations, including false-positive results in individuals who were vaccinated with BCG. We evaluated the usefulness of a recently developed interferon-gamma assay (QuantiFERON-TB Gold) in the diagnosis of latent tuberculosis. METHODS:We performed the QuantiFERON-TB Gold assay in the following groups: 1) individuals with negative responses of tuberculin skin test in the regular health checkups for two consecutive years (n = 14), 2) individuals with no abnormal findings in low dose computed tomography in a health checkup (n = 22), 3) individuals with stable tuberculosis in low dose computed tomography in a health checkup (n = 10), 4) patients with M. tuberculosis in culture (n = 23), 5) patients with nontuberculous mycobacteria in culture (n = 6). RESULTS:In the QuantiFERON-TB Gold assay, all the group 1 showed negative results. 65.2% of the group 4 showed positive QuantiFERON-TB Gold results, while all the group 5 showed negative results. 22.7% of the group 2 and 60.0% of the group 3 showed positive QuantiFERON-TB Gold results. In addition, it was revealed that the stimulation with CFP-10 played a major role in the induction of interferon-gamma secretion. CONCLUSION:The QuantiFERON-TB Gold assay shows promise for the immunodiagnosis of latent tuberculosis using a whole-blood.
Diagnosis ; Humans ; Immunologic Tests* ; Interferon-gamma* ; Latent Tuberculosis* ; Mycobacterium bovis ; Nontuberculous Mycobacteria ; Skin Tests ; Tuberculin ; Tuberculosis

BACKGROUND: Before the introduction of the antinuclear antibody test (ANA), the lupus erythematosus (LE) cell test was a useful diagnostic test for systemic lupus erythematosus(SLE) But, the ANA test has replaced the LE cell test in virtually all laboratories as the current routine test for SLE. However, because the LE cell test is still performed in some laboratories, the authors compared the LE cell test with the ANA test to reevaluate the LE cell test. METHODS: A total of 522 cases were evaluated from Aug. 1990 to Aug. 1994. In these cases, the LE cell test and the ANA test were performed simultaneously, and the results were compared. The authors defined the 'True LE Phenomenon' as only when the LE cell test results agreed with the anti-histone antibody pattern of the ANA test. RESULTS: Of the total 522 cases, 56 cases(10.7%) were SLE. The LE cell test was positive in 22 cases(39.3%) and the ANA test in 56 cases(100%). The LE cell test produced 6(27%) false positive cases and 3 (8.8%) false negative cases. Therefore, the sensitivity of the LE cell test that was verified by the ANA test was only 28.6%. On the other hand, the sensitivity of the ANA test was 100%. In 2 cases, the LE cell results were different in repetitive tests although the ANA results were the same. In 2 other cases, it was impossible to interprete the results of the LE cell test because of severe leukopenia. CONCLUSIONS: The authors concluded that the LE cell test showed markedly low sensitivity and a high false positive and false negative rates for SLE, and that the LE cell test was difficult to perform and interpret accurately due to numerous interfering factors. Therefore, for accurate diagnosis of SLE, the LE cell test must be replaced by more definitive and quantitative immunologic tests in all laboratories such as the ANA test.
Antibodies, Antinuclear ; Diagnosis ; Diagnostic Tests, Routine ; Hand ; Immunologic Tests ; Leukopenia ; Neutrophils*

BACKGROUND: Before the introduction of the antinuclear antibody test (ANA), the lupus erythematosus (LE) cell test was a useful diagnostic test for systemic lupus erythematosus(SLE) But, the ANA test has replaced the LE cell test in virtually all laboratories as the current routine test for SLE. However, because the LE cell test is still performed in some laboratories, the authors compared the LE cell test with the ANA test to reevaluate the LE cell test. METHODS: A total of 522 cases were evaluated from Aug. 1990 to Aug. 1994. In these cases, the LE cell test and the ANA test were performed simultaneously, and the results were compared. The authors defined the 'True LE Phenomenon' as only when the LE cell test results agreed with the anti-histone antibody pattern of the ANA test. RESULTS: Of the total 522 cases, 56 cases(10.7%) were SLE. The LE cell test was positive in 22 cases(39.3%) and the ANA test in 56 cases(100%). The LE cell test produced 6(27%) false positive cases and 3 (8.8%) false negative cases. Therefore, the sensitivity of the LE cell test that was verified by the ANA test was only 28.6%. On the other hand, the sensitivity of the ANA test was 100%. In 2 cases, the LE cell results were different in repetitive tests although the ANA results were the same. In 2 other cases, it was impossible to interprete the results of the LE cell test because of severe leukopenia. CONCLUSIONS: The authors concluded that the LE cell test showed markedly low sensitivity and a high false positive and false negative rates for SLE, and that the LE cell test was difficult to perform and interpret accurately due to numerous interfering factors. Therefore, for accurate diagnosis of SLE, the LE cell test must be replaced by more definitive and quantitative immunologic tests in all laboratories such as the ANA test.
Antibodies, Antinuclear ; Diagnosis ; Diagnostic Tests, Routine ; Hand ; Immunologic Tests ; Leukopenia ; Neutrophils*