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Biomedical subjects

P M Niklasson

Publications and source records attributed to P M Niklasson.

At least 19 recordsLinked to original sources
PubMed1990

Norfloxacin treatment of salmonellosis does not shorten the carrier stage.

In a prospective controlled study we evaluated the effect of early norfloxacin treatment on the duration of salmonella carriage after acute salmonellosis. The study was carried out during an outbreak of Salmonella typhimurium infection at a military base. 23 patients received norfloxacin 400 mg twice daily for 7 days while 29 patients served as untreated controls. A patient was considered to have ceased being a carrier on the date of the first of 3 negative consecutive cultures. Four weeks after diagnosis 30% of the treated patients and 31% in the control group were still carriers. The corresponding figures after 8 and 12 weeks were 17 and 3% and 4 and 0%, respectively. Thus, one week of norfloxacin treatment instituted at an early stage of salmonellosis did not shorten the duration of carriage.

Adult↗
PubMed1979

An outbreak of hepatitis A investigated by immune electron microscopy and enzyme-linked immunosorbent assay.

In a small outbreak of hepatitis A among members of a hospital staff, excretion of hepatitis A virus could be detected by immune electron microscopy (IEM) and enzyme-linked immunosorbent assay (ELISA) in 3 out of 3 cases tested. Significant increases in antibody titre could be shown in 4 out of 6 cases (IEM), and development of virus specific IgM was shown in all 6 cases (ELISA). Among these patients IgM could be detected after 3 months, while sera drawn after 10 months were negative.

Antibodies, Viral↗
PubMed1978

Listeria encephalitis in five renal transplant recipients.

Listeria encephalitis has occurred recently in 5 renal transplant recipients at the Transplantation Unit in Stockholm. Symptoms from the central nervous system, such as coma, hemiparesis and cranial nerve paresis, dominated the clinical picture. Listeria monocytogenes was isolated from the blood of all the patients, from the cerebrospinal fluid in two, from the urine in one and post mortem from the brain in one patient. Pleocytosis never exceeded 200 leucocytes/mm3 and the glucose ratio was normal or near normal. Complement fixation test for Listeria was negative in all 5 patients. Four patients expired in spite of treatment with large doses of penicillin and other antibiotics to which the isolated strains were sensitive in vitro. At autopsy, inflammation and necrosis were observed in the brain, especially the brain stem, and there was mild lymphocytic infiltration of the meninges. The surviving patient was treated with a combination of chloramphenicol and ampicillin.

Adult↗
PubMed1976

Effects of meningococcal and Escherichia coli capsular polysaccharides on human and dog platelet aggregation in vitro.

Highly purified capsular polysaccharides from groups A, B, and C meningococci and from two strains of Escherichia coli did not aggregate human or dog platelets in vitro. Nor was there any detectable effect on platelet aggregation induced by adenosine diphosphate (ADP), epinephrine, or collagen. The results do not support the hypothesis that capsular polysaccharides are involved in the pathogenesis of thrombocytopenia often seen in severe infections with these bacteria.

Adenosine Diphosphate↗
PubMed1974

Studies of peripheral blood T-and B-lymphocytes in acute infections.

E-binding (T) and immunoglobulin-bearing (B) lymphocytes were determined in 22 patients with acute infections. The percentage of T-cells was depressed in most patients in the early stages of disease, whereas the B-cell proportion was usually elevated compared with convalescence and controls. The B-cell increase occurred earlier in a small group of viral or mycoplasmal infections than in bacterial infections. Four patients with unusually high numbers of B-cells had no corresponding increase in EAC3-binding lymphocytes. Almost all lymphocytes from pleural effusion in a patient with tuberculosis were found to be T-cells.

Acute Disease↗