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H Hallander

Publications and source records attributed to H Hallander.

32 records · Page 2Linked to original sources
PubMed1992

Value of confirmation of Chlamydiazyme enzyme immunoassay results in the detection of Chlamydia trachomatis.

The specificity of an EIA (Chlamydiazyme, Abbott) for detection of Chlamydia trachomatis was evaluated by means of a monoclonal antibody blocking reagent (Abbott) and a direct fluorescent antibody test (DFA) (Micro Trak, Syva). Of the 12,864 tested specimens from the urethra and cervix, 666 (5.2%) were positive. When retested with the same technique 625 (4.9%) were again positive. The result in 514 (4.0%) specimens was verified by means of the blocking reagent. Of specimens with absorbance values just below the established cut-off limit (0.07-0.114), 31 of 79 (39.2%) were specifically inhibited, increasing the rate of positive results by 0.25%. The results confirmed with the blocking reagent were in agreement with those obtained by DFA. The findings show that verification of positive Chlamydiazyme results is strongly advisable, in particular in specimens from the cervix.

Antigens, Bacterial↗
PubMed1992

Identification of a parasite-specific cytoplasmic 67 kDa Entamoeba histolytica antigen recognized by patient sera and monoclonal antibodies.

To avoid false positive reactions in tests for anti-ameba antibodies, we wanted to identify parasite-specific component(s). Amebiasis patient sera recognized an antigen of 67 kDa by immunoblotting in an active E. histolytica fraction obtained by ion exchange chromatography. Monoclonal antibodies against the fraction were made. Antibody 3G2 reacted with three antigenic components of 67, 40 and 25 kDa and in the immunocytology with an epitope located in the cytoplasm of E. histolytica trophozoites. ELISAs using the isolated parasite fraction and monoclonal antibody 3G2 (to assay inhibition of binding) were capable of distinguishing specific reactivity in sera from amebiasis patients.

Animals↗
PubMed1990

Secondary analyses of the efficacy of two acellular pertussis vaccines evaluated in a Swedish phase III trial.

A placebo-controlled efficacy trial of two acellular pertussis vaccines carried out in Sweden in 1986-87 used culture confirmation as the principal case definition. However, the sensitivity of pertussis culture is low, and secondary analyses using more sensitive serological diagnostic criteria have therefore been carried out. These analyses confirm that vaccination with pertussis toxoid alone does protect against typical whooping cough with laboratory confirmation, but show that it does not protect against infection or colonization. There is evidence that the addition of filamentous haemagglutinin provides some protection against infection. Bacterial isolation rates were lower in vaccinated than unvaccinated children with serologically confirmed pertussis and increased with disease severity.

Child↗
PubMed1989

Bacteriuria testing by the ATP method as an integral part in the diagnosis and therapy of urinary tract infection (UTI).

Rapid tests for bacteriuria have the highest value, if the test result is available while the patient is with the doctor. At the bacteriological laboratory rapid testing of samples obtained by mail may be cost-effective but is of little clinical value. In a previous study performed at a health care centre using conventional urine culture as a reference the ATP test came out as the most reliable one among several rapid bacteriuria tests. The present study was performed to see how the ATP test could be fitted into the routine of the health care centre. Female patients with UTI symptoms were asked to deliver a urine sample to the health care centre laboratory and to wait for the result before seeing the doctor. After having the symptoms confirmed the doctor based the diagnosis on the ATP value. A low ATP value ruled out UTI and a high ATP value confirmed UTI. In patients with an intermediary ATP value (10-50 nmol/l) a positive nitrite test was used to confirm UTI. Only those patients with intermediary ATP values and negative nitrite test had to wait for conventional urine culture. Thus in most patients the decision on antibiotic therapy or not was based on clinical symptoms and ATP results only. Antibiotics (trimethoprim) were given as single dose or as a conventional 7-day regime in a double-blind comparison. The correlation between the ATP method and conventional culture was good.(ABSTRACT TRUNCATED AT 250 WORDS)

Adenosine Triphosphate↗
PubMed1986

In vitro aminoglycoside resistance of gram-negative bacilli and staphylococci isolated from blood in Sweden 1980-1984.

The in vitro susceptibility to gentamicin, tobramycin, amikacin and netilmicin in septicaemia isolates was followed during 1980-1984 in 6-8 Swedish laboratories. The bacterial distribution was similar over the years and was dominated by Escherichia coli and staphylococci. Resistance to gentamicin was found in 2.3-3.6%, to tobramycin in 1.4-3.4%, to amikacin and netilmicin in 0.5-0.9%. Production of aminoglycoside modifying enzymes was observed among resistant strains.

Amikacin↗
PubMed1978

A clinical and bacteriological evaluation of the effect of sulphamethoxazole-trimethoprim in acne vulgaris, resistant to prior therapy with tetracyclines.

42 patients with acne vulgaris, clinically resistant to prior therapy with tetracyclines, were evaluated after therapy with sulphamethoxazole-trimethoprim (400 + 80 mg) twice daily. Initially and after 6, 12 and 18 weeks of treatment in each patient the different acne lesions were counted and pus specimens from unhealed pustules were taken for bacteriological analysis. Complete remission or excellent results were obtained in 33 patients (79%) at the end of treatment despite a relative increase of Staphylococcus hominis and Propionibacterium granulosum. These species were more resistant in agar dilution test to the combination sulphamethoxazole-trimethoprim (20:1) than other isolated species.

Acne Vulgaris↗
PubMedDate not supplied

Septic osteomyelitis and polyarthritis with ureaplasma in hypogammaglobulinemia.

We describe a hypogammaglobulinemic woman with a one-year history of destructive septic osteomyelitis and polyarthritis with positive cultures for Ureaplasma urealyticum from joint exudate and blood. The clinical course was complicated by subcutaneous abscesses from which both U. urealyticum and Mycoplasma hominis were grown. Multiple routine cultures had been negative, except for sporadic findings of Staphylococcus epidermidis before specific cultures for mycoplasmas were performed. Therapy with beta-lactam antibiotics, clindamycin, rifampicin, fusidic acid and aminoglycosides had been given without obvious clinical effect. Intravenous doxycycline treatment instituted after microbiological diagnosis had a dramatic effect on the clinical course. The clinical suspicion of mycoplasma and ureaplasma as etiologic agents of orthopaedic infections in hypogammaglobulinemic patients is mandatory in order to perform appropriate cultures.

Adult↗
PubMedDate not supplied

Bacteriology in peritonsillitis.

Abscess material from 10 patients with peritonsillar abscesses was obtained by aspiration. Beside cultures and cultures in the laboratory, were performed 3-26 hours later, as well as routine nasopharyngeal and throat swab cultures. A total of 26 bacterial species were isolated from the abscess material; 19 of these were obligate anaerobes. In 4 patients a pure growth of anaerobes was found. In 3 patients a mixed aerobe/anaerobe flora was obtained. In 3 patients a pure growth of aerobes was found. Beta-hemolytic streptococci groups A and C respectively were isolated from 2 patients, but in pure culture from one patient only. The results of the nasopharyngeal and throat swab cultures showed a poor correlation to the results of cultures on aspirates. Comparison of the results of the bedside inoculation with the results of inoculation in the laboratory showed a moderate loss of bacterial species, viz. 3 of 26. All bacteria studied were susceptible to penicillin V, ampicillin and erythromycin when tested in vitro.

Adolescent↗