[An improved method of preparing protein and peptide probes in mass spectrometry with ionization of division fragments by californium-252 (TOF-PDMS)].

The addition of organic acids (picric, oxalic, citric, or tartaric) to peptide and protein samples was found to significantly increase the yield of their quasi-molecular ions (QMI) in time-of-flight 252Cf plasma desorption mass spectrometry. The yield of the ions depended on the pKa of the acid added.

[Composition of intestinal microflora in various kidney diseases].

The effect of intestinal microflora on the abdominal clinical signs was studied in patients with chronic diseases of the kidneys. Renal diseases are accompanied by morphological changes of digestive tract and by dysbacteriosis which may lead the clinical picture. The importance of these findings for the treatment of patients with renal diseases is emphasized.