[Which symptom catalog for the computer analysis of exertion-EKG is to be considered?].
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On 33 patients who underwent a lung resection under conditions of stress in the majority of cases also after parenchyma-sparing operation a pulmonary hypertension, in about 50% already a slight hypertension in rest could be proved. The increase of the pulmonary pressure correlated with an increase of the resistance of the pulmonary vascular system, of resistance and age and showed tendencies to the increasing postoperative interval.
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This last of three reports on the prevention of hepatitis in dialysis centres deals with the kind and frequency of desinfection measures in the dialysis area, contains advices to the mode of transfer of patients between dialysis centres and makes demands to the tests of hepatitis-B-antigen and antibodies. Finally proposals concerning the frequency of controls for HBs-antigen and anti-HBs and for the passive immunisation with anti-HBs-enriched immunoglobulin are rendered.
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Two-dimensional gel electrophoresis of acidic and basic [35S]methionine-labeled polypeptides derived from primary cultures of human retinal-pigment epithelial cells revealed about 850 proteins. By co-electrophoresis with highly purified, evolutionally conserved proteins, alpha-actinin, calmodulin, cytosol retinal-binding protein, alpha- and beta-tubulin, and vinculin (mass: 130 000 Da) were tentatively identified in the fluorograms. Quantification of greater than 100 of the excised radioactive spots by liquid scintillation counting revealed an estimated overall gel/gel and donor/donor variation of 40% (SEM, 21%), the latter for data on three to four donors 57 to 81 years old. Therefore, for a difference from normal to be significant (p less than or equal to 0.01), it would, on average, have to exceed 88% of the control mean for that protein. Putative glycoproteins were independently radiolabeled, with tritiated sugars as precursors. Glucosamine was incorporated most rapidly and with the highest specific activity. It labeled about 170 polypeptides. Fucose and N-acetylmannosamine, respectively, labeled 74 and 27 polypeptides. The glycoprotein label was maximal in about 16 very acidic proteins with apparent molecular masses between 50 000 and 150 000 Da. Parallel use of both a sugar and an amino acid label facilitates identification of proteins in two-dimensional gels.
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