Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0348321 (Haemophilus)
 15,372 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Latex particle agglutination and counterimmunoelectrophoresis techniques were compared in a clinical trial to demonstrate their sensitivity, specificity, and usefulness in the rapid diagnosis of invasive Hemophilus influenzae type b disease. LPA, a simplified LPA performed by house officers, and CIE used in this study detected 0.2, 0.5, and 1 to 10 ng/ml of Hib capsular antigen, respectively. One hundred-six illnesses suspected of being caused by Hib were evaluated prospectively by these assays. A total of 39 of these were confirmed by culture or detection of antigen or both. LPA and simplified LPA were more sensitive and specific than CIE in the diagnosis of Hib disease (P less than 0.01), especially in invasive disease other than meningitis. LPA is inexpensive, can be performed quickly, and detects all invasive Hib infections. The results emphasize the usefulness of antigen detection in the rapid diagnosis of Hib infections, demonstrate that LPA is more sensitive and specific than CIE, and can be conveniently performed by physicians.
 ...
PMID:Rapid diagnosis of Hemophilus influenzae type b infections by latex particle agglutination and counterimmunoelectrophoresis. 30 27

Cerebrospinal fluids (CSFs) from 146 patients with suspected meningitis were screened by a recently introduced, rapid and sensitive chromogenic Limulus amebocyte lysate (CLAL) assay for endotoxin. Fifty-eight of these CSFs were screened as well for bacterial antigens by CIE, latex and/or coagglutination techniques. A total of 68 CSFs were positive by either culture and/or at least one of the antigen screens. The overall sensitivity of the CLAL assay was 93% with a specificity of 100%. However, the assay's sensitivity for community - acquired meningitis due to Haemophilus influenzae type b and Neisseria meningitidis was 100%. In this group the assay's sensitivity was better than those of direct gram stain (62%), culture (80%), and commercially available, rapid antigen detection methods (89%). Used judiciously, the CLAL assay is a cost-effective, helpful adjunct test for the diagnosis of gram-negative meningitis.
 ...
PMID:Chromogenic Limulus amebocyte lysate assay as an aid in the diagnosis of meningitis. 404 14

Samples of CSF, serum, and urine from 162 children with a clinical diagnosis of possible bacterial infection were examined by CIE within 1 hr of admission to the hospital. Results obtained were compared to information derived from gram stain and bacterial cultures of these specimens. Thirty-eight of 59 patients with culturally proved bacterial infections had positive CIE determinations at the time of admission. Highest correlation between culture and CIE results was in patients with meningitis due to Hemophilus influenzae type b while poorest correlation was obtained in children with pneumococcal septicemia. PRP within serum or CSF was quantitated on 21 occasions in patients with H. influenzae meningitis. Patients who experienced sequelae of their meningitis had significantly (p less than 0.005-0.025) higher levels of PRP within CSF and serum than those whose recovery was uneventful.
 ...
PMID:Countercurrent immunoelectrophoresis in the evaluation of childhood infections. 415 36

Infections with Haemophilus influenzae type b are major causes of morbidity and mortality in young children. We developed an enzyme-linked immunosorbent assay for the diagnosis of Hib infections. The ELISA was more sensitive than both counterimmunoelectrophoresis and latex agglutination for the detection of Hib antigen in serum, urine, and cerebrospinal fluid. In addition, no false positive ELISA reactions were noted. The increased sensitivity of ELISA was especially valuable in the detection of Hib antigen following antibiotic therapy, in which case cultures are often sterile and CIE and LA can be negative. ELISA is thus a valuable tool for the early diagnosis of Hib infections.
 ...
PMID:Indirect enzyme-linked immunosorbent assay for the quantitation of the type-specific antigen of Haemophilus influenzae b: a preliminary report. 699 67

Capsular serotypes of 122 respiratory Haemophilus influenzae strains were identified utilizing antigenic examinations (Slide Agglutination Test [SAT] and counter immuno-electrophoresis [CIE]), and PCR method. Results of the two methods were compared to find disagreement. Clinical and bacteriological characteristics of encapsulated strains were analyzed. By utilizing PCR assay, 3 (2.5%) serotype b, 1 (0.8%) serotype f and 118 (96.7%) non-typeable strains were found among 122 tested strains. Discrepancy between the results of antigenic examinations and PCR assay was found in one strain. That strain gave positive results by antigenic tests with capsular type c antiserum but it was determined to be capsular type f by PCR. No serotype b- strain was detected. All the encapsulated strains displayed biotype I. All the serotype b strains produced beta-lactamase, but none of those was sulbactam/ampicillin and amoxicillin/clavulanic acid resistant. The serotype f strain was beta-lactamase non-producing ampicillin susceptible. The patients suffered from respiratory infections due to encapsulated strains displayed safe clinical manifestations and good clinical responses to antibiotic treatments using beta-lactams. In pre-vaccination era, PCR is considered to be a useful method for determination of serotypes of respiratory H. influenzae, which may contribute to reducing a possibility of clonal transmission of serotype b strains among children community, which is one of the potential risk factors for pediatric invasive infections.
 ...
PMID:Serotypes of Haemophilus influenzae strains isolated from pediatric patients with respiratory tract infections. 1510 22