Functional infringements. Patogenez radiation injuries of kidneys

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Patogenez of radiation injuries of kidneys is not absolutely clear.

Functional infringements the Ionizing radiation leads to liberation from cages gialuronidazy, which depolimerizuet mukopolisaharidy therefore permeability of membranes raises.

In a sharp stage of a beam nephrite korkovyj the layer of kidneys is expanded, are found out in a hemorrhage considerable quantity. At microscopic research primary defeat of capillaries klubochkov and stromy, and also arteriol comes to light. In a capsule gleam klubochkov accumulates ekssudat; kanaltsevyj epitely bulked up, it is torn away in a gleam kanaltsev. With the help gistohimicheskih researches heavy infringements nucleinic, lipidnogo and a carbohydrate exchange come to light. In the subsequent develops fibrinoidnyj nekroz loops klubochkov with the subsequent smorshchivaniem and gialinizatsiej separate klubochkov.

At electronic microscopy find out disorganisation of endocellular structures, a degeneration epitelija, mainly proksimalnyh kanaltsev. During the remote period (later 6-8 mes) dystrophic changes epitelija izvityh and straight lines kanaltsev, a circle-lokletochnaja infiltratsija with fibrinoznoj reaction remain. nefroskleroz 8-14 years after an irradiation can develop later.

In case of incorporation of radioactive substances in a nephritic fabric nefroskleroz develops faster (through 1 — 2 mes).

As a result of sharp or chronic influence of beam energy arise functional libomorfologicheskie changes in kidneys, as defines clinical semiotics.