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Biomedical subjects

B Kommerell

Publications and source records attributed to B Kommerell.

At least 163 records · Page 9Linked to original sources
PubMed1976

Intramural hematoma of the esophagus: a complication of carbon tetrachloride intoxication with acute renal failure.

Following a period of prolonged severe vomiting, an intramural esophageal hematoma could be demonstrated by endoscopy and by X-ray in a 21 year old patient with hepatic and renal failure after exposure to carbon tetrachloride. The hematoma resolved spontaneously. The intramural hematoma is thought to have developed from a microdissection of the esophageal wall in the presence of a hemorrhagic diathesis.

Acute Kidney Injury↗
PubMed1976

A radioimmunoassay to determine the subtypes D and Y of the hepatitis-B surface antigen.

A radioimmunologic test system for determining the subtypes D and Y of the hepatitis-B surface antigen (HBs-Ag, Australia antigen, HAA) is described. This technique uses the immunoadsorption principle. The antigen to be subtyped is incubated with an antiserum which contains (125)I-labeled antibodies to the antigenic determinants a, d, and y. The specificity of the antibody which is not consumed in forming the antigen-antibody complex is determined by absorption on agarose to which HBs-Ag of subtypes D and Y is coupled. This specificity permits conclusions as to the subtype of the hepatitis-B surface antigen which is being investigated.

Hepatitis B Antigens↗
PubMed1976

[Epidemiolgical significance of HBs-antigen subtypes D and Y in the Heidelberg area].

The HGsantigen subtypes D and Y were determined radioimmunologically in 220 HGsAg-positive patients from the Heidelberg area. The subtype D was significantly more frequent (D = 68%) in patients with chronic liver diseases (n = 45) and in healthy HGsAg carriers (n = 32) than in patients with acute viral hepatitis B (n = 143, D = 41%). The subtype distribution in patients with acute viral hepatitis was not constant in the years 1970--1974. An antigen drift from subtype D to subtype Y was shown in healthy HBsAg carriers from 1971 to 1974. The differing distribution of subtypes in persons with transient and persistent HGsAg finding can be explained unequivocally by the altered epidemiological situation at the time of the infection.

Acute Disease↗
PubMed1975

Comparative studies of the electroencephalogram and the cerebral oxidative metabolism in patients with liver cirrhosis.

In two groups of patients with liver cirrhosis and normal EEG (Group A) and with pathological EEG (Group B) it was possible to demonstrate a correlation between the severity grade of the EEG changes, the livertypical deviations of serum chemistry and alterations in cerebral oxidative metabolism. The metabolism of the brain showed a reduced oxygen consumption and carbon dioxide output in the patients with pathological EEG changes. All patients showed a raised glucose uptake, an increased lactate release, a raised ammonia uptake and glutamine output. These findings in patients with liver cirrhosis indicate a disturbance of the oxidative energy metabolism of the brain with secondary intensification of glycolysis. Pathological changes in the EEG only appear if the oxygen consumption of the brain is limited (as in the patients of Group B). These EEG changes have a poor prognosis in respect to life expectancy. With consideration of the data from animal experiments and the reported results of cerebral blood flow and oxydative metabolism in patients with liver cirrhosis it might be assumed that liver insufficiency with elevated serum ammonia results in a deranged oxydative cerebral metabolism which might explain hepatic encephalopathy.

Ammonia↗
PubMed1975

A new radioimmunoassay for demonstrating the antibody to hepatitis-B-surface-antigen(HBs-Ag).

A new radioimmunological system for demonstrating the antibody to hepatitis-B-surface-antigen (HBS-Ag) based on the immunoadsorption principle is described. The optimal conditions for the test are given. False-negative and false-positive results could be excluded by specificity tests on sera from 100 voluntary blood donors. The sensitivity of the system is comparable to that of other more expensive radioimmunological methods.

Antibodies↗
PubMed1975

Increased sulfation of lithocholate in patients with cholesterol gallstones during chenodeoxycholate treatment.

Chenodeoxycholate was administered to 13 patients with cholesterol gallstones. During the treatment period the bile composition changed markedly. Chenodeoxycholate increased from 42.9% of the total bile salts before treatment to 79.3% after 8 weeks of treatments. Ursodeoxycholate increased from 2.3 to 12.6% and lithocholate from 1.1 to 3.3%. In contrast, cholate decreased from 40.3% of the total bile salts to 3.1% and deoxycholate decreased from 12.5 to 2.5%. Less than 5% of chenodeoxycholate, ursodeoxycholate, cholate and deoxycholate in bile were sulfate esters. In contrast, considerable amounts of lithocholate were sulfated. The sulfation of lithocholate increased from 32.8% of the total lithocholate before treatment to 73.9% after 8 weeks of treatment. Sulfated lithocholate is more rapidly eliminated in feces and urine than the nonsulfated compound. Furthermore, sulfated lithocholate is less toxic. Therefore, the increase in the sulfation of lithocholate observed in most of our patients represents a protective mechanism.

Aged↗