scholarly journals The Determination of Treponema Pallidum (TP) Antibody by the Latex Agglutination Reaction

1996 ◽  
Vol 23 (2) ◽  
pp. 177-177
Keyword(s):  
Treponema Pallidum ◽  
Latex Agglutination ◽  
Agglutination Reaction

AGGLUTINATION INHIBITION REACTIONS FOR THE DETERMINATION OF GONADOTROPHINS

1969 ◽  
Vol 62 (1_Suppl) ◽  
pp. S95-S112 ◽  
Author(s):  
A. H. W. M. Schuurs
Keyword(s):  
Immune System ◽  
Quantitative Determination ◽  
Haemagglutination Inhibition ◽  
Latex Agglutination ◽  
Literature Survey ◽  
New Method ◽  
Test Fluid ◽  
Main Application ◽  
Test Systems

ABSTRACT Various techniques for sensitising erythrocytes and latex particles with gonadotrophins, particularly with HCG, are described. The haemagglutination inhibition reactions are generally interpreted by means of »erythrocyte settling patterns«. By a new method of evaluating these patterns a relatively precise quantitative determination is possible. Latex agglutination inhibition reactions on slides are particularly suitable as rapid qualitative tests. In cases where the maximum attainable sensitivity of the agglutination inhibition tests is insufficient, e. g. for determining LH concentrations in urine, the hormone in the test fluid has to be concentrated or extracted. An alternative method is a modified haemagglutination inhibition test for large volumes which is applicable to unconcentrated urine. Due to non-specific inhibitions the above-mentioned tests cannot be applied to unprocessed serum. Agglutination inhibition tests with HCG are already well advanced, pregnancy diagnosis being their main application. Now that highly purified HCG is available, a satisfactory specificity for these tests can be attained. If the immune system for HCG is used for estimating LH, it has to meet additional specificity requirements. Furthermore, the measure of cross-reaction and the choice of standard merit special attention. Finally, a literature survey is given of test systems in which LH and FSH were used as antigens.

LATEX AGGLUTINATION REACTION IN NON-RHEUMATIC DISEASES

The Lancet ◽  
1960 ◽  
Vol 275 (7138) ◽  
pp. 1352-1353 ◽  
Author(s):  
E. Cohen ◽  
K. Shimaoka ◽  
P. Hermes
Keyword(s):  
Rheumatic Diseases ◽  
Latex Agglutination ◽  
Agglutination Reaction

Clinical efficacy and tolerability of 1.5 g/day oral amoxicillin therapy without probenecid for the treatment of syphilis

2021 ◽  
pp. sextrans-2020-054823
Author(s):  
Kazuhiko Ikeuchi ◽  
Kazuaki Fukushima ◽  
Masaru Tanaka ◽  
Keishiro Yajima ◽  
Akifumi Imamura
Keyword(s):  
Clinical Efficacy ◽  
Treatment Duration ◽  
Tertiary Care ◽  
Treponema Pallidum ◽  
Latex Agglutination ◽  
Hiv Treatment ◽  
Penicillin G ◽  
Care Hospital ◽  
Clinical Records ◽  
Latent Syphilis

ObjectivesIntramuscular benzathine penicillin G is not available in certain countries. In a previous report, 3 g/day amoxicillin with probenecid was shown to be effective in treating syphilis in patients with HIV; however, 7.3% of patients changed their therapy owing to adverse events. The objective of this study was to assess the clinical efficacy and tolerability of 1.5 g/day amoxicillin without probenecid for the treatment of syphilis.MethodsThe routine clinical records of patients diagnosed with syphilis and treated with 1.5 g/day amoxicillin at a tertiary care hospital between 2006 and 2018 were retrospectively analysed. Syphilis was diagnosed if serum rapid plasma reagin (RPR) titres were ≥8 RU and the Treponema pallidum latex-agglutination test was positive. Serological cure was defined as a ≥fourfold decrease in the RPR titre within 12 months in symptomatic early syphilis and within 24 months in latent syphilis.ResultsOverall, 138 patients (112 with HIV) were analysed. The percentages of primary, secondary, early latent, late latent and latent syphilis of unknown duration were 8.0%, 50.0%, 25.4%, 5.8% and 10.9%, respectively. The median treatment duration was 4.5 weeks (IQR 4–8 weeks), which was not related to the stage of syphilis. Two patients (1.5%) changed treatment due to skin rash. The rate of serological cure was 94.9% (131/138; 95% CI 89.8% to 97.9%) overall; 93.8% (105/112; 95% CI 87.5% to 97.5%) in patients with HIV and 100% (26/26; 95% CI 86.8% to 100%) in patients without HIV. Treatment duration was not related to the treatment efficacy.ConclusionThe regimen of 1.5 g/day amoxicillin without probenecid is highly effective with a low switch rate in patients with and without HIV.

THE ROLE OF VARIOUS HAEMOSTASIS PARAMETERS IN MONITORING FIBRINOLYSIS WITH PRO-UROKINASE/STREPTOKINASE IN TREATMENT OF MYOCARDIAL INFARCTION

1987 ◽  
Author(s):  
F Keller ◽  
P Schanzenbächer ◽  
F Dati ◽  
J Huber ◽  
K kochsiek
Keyword(s):  
Myocardial Infarction ◽  
Degradation Products ◽  
Therapy Monitoring ◽  
Latex Agglutination ◽  
Systemic Activity ◽  
Thromboplastic Activity ◽  
Specific Degradation ◽  
D Dimer

The new drug pro-urokinase, a proenzyme of urokinase (scu-PA), seems to have advantages in comparison with other fibrinolytic agents. Properties like higher fibrin specifity, non-systemic activity and lower antigenity may lead to a lower rate of complications. In a pilot study 10 patients with acute myocardial infarction have been treated under angiographical control with pro-urokinase (3-9 millions IU) by i.v. application. In case of no perfusion a further administration of streptokinase was carried on. The blood samples were obtained at therapy begin and after 5, 10, 30, 60 and 120 minutes. The therapy monitoring was performed by determination of established haemostasis parameters, like fibrinogen, fibrin(ogen)-split products (FSP), a2-antiplasmin. Plasminogen and batroxobin-time. Furthermore, the diagnostic relevance of new laboratory tests for fibrinolysis, D-Dimer and thrombin-anti thrombin Ill-complex (TAT) has been investigated considering some typical follow-ups. D-Dimer were determined by latex agglutination test and TAT by enzyme immunoassay.Generally the application of pro-urokinase in contrast to streptokinase results in minimal changes of the classic fibrinolysis parameters like fibrinogen, FSP, batroxobin-time etc. demonstrating no systemic lysis. The appearance of plasmic degradation products of cross-linked fibrin (D-Dimer) is a specific indi-cater of the release of thrombotic material. Other non-specific degradation products (fibrinogenolysis) were detected by the measurement of FSP. In some cases in which perfusion ocurred an increase of TAT followed by a rapid decrease was observed. This indicates a higher thromboplastic activity which may originate from the infarcted area producing TAT complex formation.

scholarly journals Quality control and interest of the determination of anti-CCP antibodies and rheumatoid factor in the diagnosis of rheumatoid arthritis

2016 ◽  
Vol 2 (3) ◽  
pp. 379-388
Author(s):  
Amoussou Nathalie Gisèle ◽  
Gounongbé Marcelle ◽  
Dougnon Tamègnon Victorien ◽  
Zomalheto Zavier ◽  
Loko Frédéric ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Likelihood Ratio ◽  
Positive Likelihood Ratio ◽  
Negative Likelihood Ratio ◽  
Chronic Inflammatory Disease ◽  
Latex Agglutination ◽  
Elisa Assay ◽  
Rheumatoid Factors ◽  
American College Of Rheumatology

The rheumatoid arthritis (RA) is an auto-immune, rheumatic and chronic inflammatory disease, characterized by joints damage. The early diagnosis of RA allows the initiation of a treatment which offers to the patients more chance of remission and avoids the evolution towards the unrecoverable deformity of joints. The objective of this study is to evaluate the performance of recent tests for the determination of anti -CCP antibodies and FR by ELISA in Benin Republic. This analytical, retrospective (2 years 6 months) and prospective (7 months) study allowed us to collect 36 patients meeting the American College of Rheumatology (ACR) criteria for RA and 24 controls. A comparison was made with the latex agglutination test for rheumatoid factors and a search of rheumatoid factors (RF) on the one hand and anti-cyclic citrullinated peptide. In our study, the specificity of anti-CCP assay (100 %) is higher than that of RF-ELISA (91.7%). The sensitivity of RF-ELISA assay is higher (77.8 %) than that of anti-CCP assay (66.7%). The latex test for rheumatoid factors has a sensitivity of 33.3 %. The positive predictive value (PPV) of anti-CCP assay (100 %) is higher than that of RF-ELISA assay (93.33 %). The positive-likelihood ratio (LR+) of anti-CCP assay is higher than the LR+ of RF-ELISA assay (4.96). The negative-likelihood ratio (LR-) of anti-CCP assay (0.33) is higher than the LR- of RF-ELISA assay (0.24). In conclusion, the anti-CCP assay has the highest specificity and RF-ELISA assay shows the highest sensitivity. In conclusion, the association of the two assays enhances a better diagnosis value for RA.Asian J. Med. Biol. Res. September 2016, 2(3): 379-388

Latex agglutination test for detecting antibodies to Treponema pallidum

1993 ◽  
Vol 39 (8) ◽  
pp. 1700-1705 ◽  
Author(s):  
M Matsumoto ◽  
F Ishikawa ◽  
T Matsubayashi ◽  
T Nagao ◽  
K Inuzumi ◽  
...  
Keyword(s):  
Rheumatoid Factor ◽  
Mass Screening ◽  
Strong Correlation ◽  
Treponema Pallidum ◽  
Latex Agglutination ◽  
Agglutination Test ◽  
Latex Agglutination Test ◽  
High Reproducibility ◽  
Conventional Methods ◽  
Interassay Precision

Abstract We have developed an automated latex agglutination test for Treponema pallidum (TPLA) for measurement of the concentration of treponemal antibodies in syphilitic sera. The assay needs neither a complicated pretreatment of the sera nor special techniques. Intra- and interassay precision studies showed high reproducibility. Potentially interfering substances, such as bilirubin, hemoglobin, triglycerides, and rheumatoid factor, did not affect the results. The results obtained with the TPLA test showed a strong correlation with those from conventional methods. This test for antibodies to T. pallidum may be useful for the mass screening of syphilitic infections.

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