[Scintigraphic study of the kidneys with a 99m Tc-ascorbic complex in chronic pyelonephritis patients].

A scintigraphic study of the kidneys was carried out in 1780 patients with chronic pyelonephritis: 1308 with calculous and 472 with acalculous pyelonephritis. The scintigraphic finding was interpreted for each kidney separately. Diffuse damages of renal parenchyma was most often observed (47,6%), being, in the majority of the cases--bilateral.

[Comparative clinical x-ray, radioisotope nephrographic and ultrasonic studies of chronic pyelonephritis patients].

The authors compare the incidence of the changes established by X-ray, radioisotope-nephrographic and ultrasound studies on 115 patients with chronic pyelonephritis. Most frequent and most characteristic are the changes with venous urography. Though not specific, the changes in the isotope-nephrogram and ultrasound contribute to the establishment of functional and structural disturbances in chronic pyelonephritis.

[Morphologic and biochemical heterogeneity of lysosomes].

By means of isopycnic centrifugation in the continuous density gradient of sucrose two subfractions of lysosomes were isolated from rat liver homogenates: a "light" one (with the floating density p=1.13) and a "heavy" one (p=1.24).