Osmotic nephrosis Osmotic nephrosis Osmotic nephrosis refers to structural changes that occur at the cellular level in the human kidney. Cells, primarily of the straight proximal tubule, swell due to the formation of large vacuoles in the cytoplasm. These vacuoles occur in the presence of large amounts of certain solutes circulating in the tubules. However, despite the condition's name, the solutes do not cause change through osmotic forces but through pinocytosis. Once inside the cytoplasm, pinocytic vacuoles combine with each other and with lysosomes to form large vacuoles that appear transparent under microscopic examination. There may be no symptomatic presentation with this
Transneuronal degeneration neurons resulting from the disruption of input from or output to other nearby neurons. Anterograde and retrograde transneuronal degeneration is typically seen in humans around lesions in the limbic, visual, or dentate-rubro-olivary pathways. Lesions to the brain cause pathological changes that can cause anterograde transneuronal degeneration and lead to system degeneration. Brain lesions create structural or transient deafferntation (the interruption or elimination of sensory nerve impulses by injuring or damaging sensory nerve fibers) because injury to the area causes a loss of excitatory input to other areas in the brain, causing them to be less responsive to stimuli. Delayed secondary