Search PubMed⌕ Search

Biomedical subjects

E Berger

Publications and source records attributed to E Berger.

At least 181 records · Page 10Linked to original sources
PubMed1976

The ribosomes of Drosophila. IV. Electrophoretic identify among ribosomal subunit proteins from wild type and mutant D. melanogaster and D. simulans.

One- and two-dimensional gel electrophoresis was employed to characterize and compare ribosomal subunit proteins from wild-type D. melanogaster and several mutants, including suppressor-of-forked and four X-linked cold sensitive lethals. The sibling species D. simulans was also studied. We found the electropherogram patterns indistinguishable in all cases.

Animals↗
PubMed1976

The ribosomes of Drosophila. III. RNA and protein homology between D. melanogaster and D. virilis.

The extent of interspecific homology between D. melanogaster and D. virilis for ribosomal RNA and ribosomal protein was examined using the techniques of two-dimensional gel electrophoresis, and RNA-DNA filter hybridization. Only 2 of the 71 ribosomal proteins resolved were found to be species specific, while comparisons of soluble larval hemolymph protein patterns showed little similarity. Depending on the technique employed, the sequence homology for 18S + 28S ribosomal RNA was found to be between 83-94%, and sequence homology for 5S rRNA was judged to be complete.

Animals↗
PubMed1976

[The social integration of disorded children and juveniles. Aspects of the medical, socialpsychiatric and therapeutic pedagogies (author's transl)].

The general principles in the treatment of the disordered, is the change from segregation to social integration. The allocation of financial resources is necessary for the needed conditions, that means, that instead of the traditional institutions but mostly the ambulatory institutions, an early apprehension therapy should be financed. The seriousness in the treatment next to the specific facilities for the disordered, is the individual psychic help needed in regard to the secondary psychic problems, as a result of his disorder, also the socialization of the disordered should be advanced. Social organizations for disordered, as well as the parents of disordered children have a very important task, but the organizations can only fullfill the work in cooperation with a municiple care system.

Adolescent↗
PubMed1975

Polymorphism at the alpha-glycerophosphate dehydrogenase locus in Drosophila melanogaster. I. Properties of adult allozymes.

A biochemical comparison was made between alpha-glycerophosphate dehydrogenase allozymes from Drosophila melanogaster. Enzymes extracted from the three major genotypes were indistinguishable in terms of their pH optima and thermal stabilities. Distinctive differences were observed for three parameters; temperature dependence of specific activity, temperature dependence of K-m, and reaction rate constancy over a physiological temperature range. These results are discussed in terms of a model of balancing selection and the existence of spatial and temporal allele frequency clines in natural populations.

Alleles↗
PubMed1975

Preserved allografts of dilated saphenous vein for vascular access in hemodialysis: an initial experience.

Arteriovenous fistulas constructed from preserved (frozen) allograft veins provided vascular access for maintenance hemodialysis in 14 patients with inadequate vasculature for conventional autogenous fistulas. Electromagnetic flows ranged from 200 to 250 cc/min. Dialysis flow of 200 cc/min were accomplished consistently. The allografts were useable for dialysis much earlier than autogenous A-V fistulas. Arteriography demonstrated a wide vasculature channel very suitable for dialysis needles. Allografts seemed superior to bovine heterografts in both patency and susceptibility to infection. Scanning electron microscopy revealed smoother initimal surfaces if the donor received small amounts of heparin systemically while the veins were being removed. Allograft veins appear to be a useful alternative means of vascular access for hemodialysis.

Arteriovenous Shunt, Surgical↗
PubMed1974

Survival at extreme altitude: protective effect of increased hemoglobin-oxygen affinity.

Decreased hemoglobin-oxygen affinity is thought to be of adaptive value to humans and nonindigenous animals at high altitude. To test this, hemoglobin-oxygen affinity was modified by carbamoylation of hemoglobin in rats. Exposure of control (low oxygen affinity) and experimental (high oxygen affinity) animals to a pressure equivalent to high altitude revealed that increased, rather than decreased, hemoglobin-oxygen affinity will permit survival at greatly reduced environmental oxygen pressures.

Altitude↗