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Biomedical subjects

W Hansen

Publications and source records attributed to W Hansen.

At least 109 records · Page 6Linked to original sources
PubMed1976

[Investigations on production of spheroplasts in different species of the genus Haemophilus isolated from pathological material of the respiratory tract (author's transl)].

One hundred and fifty three strains belonging to 5 different species of the Genus haemophilus isolated from pathological material of the respiratory tract, have been submitted to the action of inductive agents. Under their influence, all those strains, and consequently all the species examined undergo morphological changes and give rise to spheroplasts. The present work demonstrates that this phenomenon not only belongs to Haemophilus influenzae but probably is a common characteristic of the Genus Haemophilus.

Culture Media↗
PubMed1975

Endogenous and postheparin monoglyceride hydrolase in plasma of patients with acute virus hepatitis.

Endogenous and postheparin monoglyceride hydrolase (MGH) was studied in 9 patients with acute virus hepatitis and in 25 normal subjects with the use of a new spectrophotometric method. During the 4 weeks of observation the patients had significantly higher endogenous and reduced postheparin MGH levels if compared with the controls (p smaller than 0.001). In the initial phase of hepatitis the alterations were more pronounced and the serum glyceride concentration was raised. The results show that MGM activities in plasma may be greatly influenced by the liver.

Alanine Transaminase↗
PubMed1975

Glycolysis and its interaction with a gluconeogenic precursor in perfused rat liver.

A non-recirculating, haemoglobin-free perfusion system was used to evaluate glycolysis in livers from fasted rats. Glycolysis was calculated from lactate and pyruvate production before and after infusion of glucose. In the absence of extracellular glucose glycolysis was small. Stimulation of glycolytic flux occured at extracellular glucose concentrations above 5 mM. Rates were proportional to glucose concentrations. Glycolysis was also investigated in the presence of extracellular lactate, which is a precursor of gluconeogenesis. High glucose concentrations (15-35 mM) were followed by lactate and pyruvate output suggesting that glycolysis was prevailing. Estimated flux rates, however, were significantly lower in the presence of the gluconeogenic precursor. Our results provide arguments that gluconeogenesis and glycolysis interact in order to regulate the peripheral glucose concentration.

Animals↗
PubMed1975

Estimates of orthodontic treatment need in Danish schoolchildren.

Orthodontic treatment need has been assessed on the basis of complete orthodontic records in a random sample of 293 Danish children aged 13-17 years by a group of postgraduate orthodontic students and by three orthodontists. The estimates of treatment need ranged from 45% to 61%. Interexaminer agreement in pairs was observed in 77%-92% (mean 83%) of the cases. Uniformity in four individual assessments was reached in 69% of the cases: 38% were considered in need of treatment and 31% were considered not to present such need; conversely, 31% gave rise to disagreement. It is argued that, at present, the orthodontist's subjective estimate of treatment need probably constitutes a more realistic approach to the problem of assigning treatment priority than the various indices of malocclusion.

Adolescent↗
PubMed1975

[Isolation of "Neisseria elongata" and "Moraxella urethralis" (author's transl)].

A strain of Neisseria elongata and a strain of Moraxella urethralis have been recently isolated from pathological material in the course of a systematic search for rodshaped oxidase positive and Gram negative micro-organisms. The morphological, cultural and biochemical characters of these fewly known strains of which pathogenicity is not clearly defined, are reported in the present paper together with some comments.

Acetates↗