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Biomedical subjects

K Dittmar

Publications and source records attributed to K Dittmar.

At least 37 records · Page 2Linked to original sources

Highly complex genetic rearrangement involving at least seven breakpoints in a case of chronic myeloid leukemia.

Cytogenetic analysis for an atypical case of chronic myeloid leukemia (CML) showed a complex karyotype with four chromosome breakpoints (5q12, 12q21, 12q24, and 22q11) and translocation products that included a typical Philadelphia chromosome but apparently normal chromosomes 9. Molecular genetic analyses using four breakpoint cluster region (bcr) probes indicated that three breaks were probably present on chromosome 22. Two apparently independent breaks appeared to exist within the bcr, one of which was probably associated with a deletion of some bcr sequences. By combining the molecular and cytogenetic data, we could infer a total of seven breaks. This case illustrates the extensive and complex types of genetic alteration that may be associated with a c-abl and bcr fusion.

Chromosome Aberrations↗

Paraffin oil pneumonia. Analysis of saturated hydrocarbons in different human tissue.

Temperature-programmed gas chromatographic analysis on columns packed with Apiezon L as stationary phase is shown to be the best method for the qualitative and quantitative analysis of simple and complex hydrocarbon mixtures when compared with all the other applicable techniques (thin-layer chromatography, column chromatography, ultraviolet spectroscopy, infrared spectroscopy, nuclear magnetic resonance spectroscopy, mass spectrometry) described in this paper. Using the method in a patient with mineral oil pneumonia it could be demonstrated that he expectorated a maximum of 79.5 mg liquid paraffin daily and also transported equally complex saturated hydrocarbons in a concentration of 1.3 mg% in plasma and of 1.6 mg% in the cellular blood components. In an additional experiment the direct determination of liquid paraffin resorbed from the gastrointestinal tract was possible in a patient with a left chyle fistula in the neck. After a dose of 50 g liquid paraffin administered as a laxative, 246 ml chyle was collected within the following 14 h which yielded a total of 4.5 mg liquid paraffin. Its composition was identical with the administered laxative. Assuming a daily lymph volume of 1.51, the resorbed amount would correspond to a resorption rate of 0.5 (see article) liquid paraffin. The importance of these results as well as the diagnostic consequences arising from the described analytical technique are discussed in detail.

Adult↗

[Active therapeutic exercises in combination with vasoactive drug in intermittent claudication (author's transl)].

Earlier investigations have shown that the success of physiotherapeutic exercises in peripheral arterial circulatory disturbances in stage II (Fontaine) can be increased by additional administration of "vasoactive" substances. In the present double-blind study, therefore, 102 outpatients were treated with magnesium nicotinate-magnesium dehydrocholate or a placebo in addition to basic physical therapy. The drug collective (n = 50) showed an increase in walking distance of 24.1% compared with the placebo group (n = 52). Also, in respect to the success rate, the drug collective did better, which, however, may have been due to the unequal distribution of the prognosis factors. Yet it may be concluded that the physiotherapeutic exercises can be effectively supported by the drug tested.

Aged↗

[Success of physiotherapeutic interval training combined with standardized hemoderivative in intermittent claudication (author's transl)].

In a cross-over trial with 114 patients, intravenous Actovegin or an oral placebo were administered in addition to basic physiotherapy. In the evaluation 105 of the subjects were taken into consideration. It was shown that the test group (n = 53) achieved a 12% increase in walking distance (measured in the standardized walking distance test) compared with the placebo group (n = 52). The therapeutic success rate, i.e. the evaluation base for the efficacy of basic physiotherapy was comparatively good and statistically confirmed at 69.8% and 73.1% for the two groups. From this it may be concluded that basic physiotherapy can be effectively supported by Actovegin.

Actihaemyl↗

Inefficiency of cynarin as therapeutic regimen in familial type II hyperlipoproteinaemia.

Seventeen ambulant outpatients with familial Type IIa or Type IIb hyperlipoproteinaemia were treated with Cynarin, the 1,5-dicaffeyl ester of quinic acid, the constituent of the artichoke (Cynara scolymus). The dose tested was 250 mg and 750 mg daily. The mean serum cholesterol and triglyceride concentrations were not significantly changed within 3 months. Cynarin, administered per os, has no hypolipidaemic effect in familial Type II hyperlipoproteinaemia.

Adolescent↗

[Combination of physiotherapeutic exercise therapy with bencyclane in intermittent claudication (author's transl)].

Earlier investigations had shown that an intensive physiotherapy program with 30 treatments in 6 weeks was the most rational therapy for intermittent claudication, but the question whether the therapeutic success could be improved by the addition of "vasoactive" substances remained open. For this reason, bencyclane was added to the basic physiotherapy in a double blind trial involving 109 ambulant patients. 91 or these were evaluated. The treatment group (n = 45) showed a greater increase in walking distance of 21.7% compared with the placebo group (n = 46). Also in the evaluation of the therapeutic success rate, the treatment group showed better results (84.4%) than the placebo group (71.7%). From this it can be concluded that the basic physiotherapy can be effectively supported with bencyclane.

Adult↗

[Results of physical therapy of peripheral arterial circulatory disorders (V). Therapeutic success of different durations of physiotherapeutic exercises].

The effect of physiotherapeutic exercise treatments of various duration was investigated in 5 collectives of ambulant patients comparable with respect to age, duration of illness, site of occlusion and risk factors (133 patients). The standardized walking distance test was used as the criterion of the treatment. There was an asymptotic increase in the mean success rate of the therapy, depending on the duration of the therapy (4, 6, 8, 12, 16 weeks, corresponding to 10, 15, 20, 30, 40 treatments 3 times a week). The average improvement in walking distance increased linearly with the prolongation of the period of treatment, increases of walking distance of over 25% being assessed as successful.

Arterial Occlusive Diseases↗

Sphingolipid metabolism in Bacteroideaceae.

The lipid composition of the anaerobic Bacteroides thetaiotaomikron has been analyzed. Sphingomyelin, ceramide phosphinicoethanolamine, free even-numbered and branched chain sphingosine bases and ceramide represented about 50% of the total lipid extract. The main ester phospholipid was phosphatidylethanolamine. The alkali-stable sphingophospholipids were predominantly N-acylated with 3-hydroxypalmitic acid, whereas the ester phospholipids are preferentially substituted with normal even and odd-numbered and branched-chain fatty acids. When Bacteroides was grown in a medium supplemented with labelled palmitic acid, this fatty acid was utilized for acylation reactions and to a large extent for the de novo synthesis of sphinganine. This long-chain base was incorporated into the sphingolipids and was also present in free form. The 3-hydroxypalmitic acid present in sphingolipids is not derived from palmitic acid, since labelled palmitate did not serve as a precursor. Free sphinganine added to the culture medium was also utilized efficiently for the biosynthesis of the sphingolipids by growing Bacteroides cultures. The 3H/14C ratio in sphingomyelin and ceramide phosphinicoethanolamine is the same, when [1-14C]palmitic acid and [3-3H]sphinganine serve as precursors. Sphingomyelin, which is usually only present in higher animals, is synthesized de novo in this Bacteroides strain.

Bacteroides↗