UFM1 E3 ligase promotes recycling of 60S ribosomal subunits from the ER.

Reversible modification of target proteins by ubiquitin and ubiquitin-like proteins (UBLs) is widely used by eukaryotic cells to control protein fate and cell behaviour. UFM1 is a UBL that predominantly modifies a single lysine residue on a single ribosomal protein, uL24 (also called RPL26), on ribosomes at the cytoplasmic surface of the endoplasmic reticulum (ER). UFM1 conjugation (UFMylation) facilitates the rescue of 60S ribosomal subunits (60S) that are released after ribosome-associated quality-control-mediated splitting of ribosomes that stall during co-translational translocation of secretory proteins into the ER.

Performance of a magnetically stabilized bed reactor with immobilized yeast cells.

This paper is focused on the possibility to apply the magnetic stabilization technique in bioprocessing. The feasibility of a continuous ethanol fermentation process with immobilized Saccharomyces cerevisiae cells in a magnetically stabilized bed (MSB) was demonstrated. The fermentation processes were carried out in an external magnetic field, transverse to the fluid flow.

[Factors affecting the antigenicity of exogenous insulin in diabetics].

The antigenic properties of insulin and the effect of additional factors on them, HL-A-phenotype including were studied under different conditions in 3 groups of diabetic patients (I--71 patients treated with insulin, II--48 diabetic patients--never treated with insulin and III--51 diabetics, treated at least 6 months with conventional insulin and later treated with monocomponent insulin "Actrapid"). In some other experiments, making use of 7 groups guinea pigs, the antigenicity of different trade insulin preparations was tested. The antibody titre was assessed by the insulin-binding serum capacity, incubated with 131I-insulin.

[Comparison between the incidence of diabetic macroangiopathy in a group of diabetics from Bulgaria and from 13 other countries].

A Bulgarian team, within the frames of a multinational study on diabetic vascular disease, sponsored by WHO, studied a group of 473 diabetic patients by the inquiry method and by the determination of blood cholesterin and creatinine and urine albumin. The results were compared with those of the whole group (6695 patients from 14 countries) and with each national group separately. A higher percentage of insulin-treated patients was established in the Bulgarian group as compared with the whole group, fewer hypertonics, lower mean cholesterol values, a little higher average body weight and considerably lower percentages of smokers.

[Therapeutic qualities of a lente preparation of swine insulins manufactured by Pharmachem].

The therapeutic effect of swine insulin preparation Lente, "Pharmachim" production was studied in 50 diabetics. Its hypoglycemizing activitis compared with that of standardized insulin Lente--"Novo", extract of bovine pancreas. The Bulgarian preparation was found to be very similar to the preparation Lente-Novo in its pharma-codynamic properties and could successfully be used in the diabetes melitus treatment.