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[Ultrastructural renal damage after shock wave exposure]
T Saitoh1, S Orikasa, N Ioritani
1Department of Urology, Tohoku University School of Medicine.
Nihon Hinyokika Gakkai Zasshi. the Japanese Journal of Urology
|January 1, 1992
Summary
Underwater shock waves cause direct kidney damage, particularly to proximal tubules. Electron microscopy revealed cellular destruction and organelle damage in rabbit kidneys after exposure.
Area of Science:
- Renal pathology
- Cellular ultrastructure
- Shock wave effects
Context:
- Investigating the impact of high-intensity underwater shock waves on renal tissue.
- Utilizing piezo-ceramics to generate shock waves (1200 bar) for experimental exposure.
- Examining rabbit renal cortex ultrastructure via electron microscopy.
Purpose:
- To elucidate the direct ultrastructural damage to renal cells induced by shock wave exposure.
- To characterize the progression and nature of renal cell injury following varying levels of shock wave exposure.
- To differentiate shock wave-induced renal injury from other forms of renal insult, such as ischemia.
Summary:
- Shock wave exposure (1200 bar) caused significant renal ultrastructural damage, primarily in proximal tubules.
- Observed damage included vacuole formation, brush border loss, organelle destruction, and cellular desquamation.
- Progressive damage affected distal tubules and led to tubular atrophy and scarring one week post-exposure.
Impact:
- Demonstrates direct cellular damage to the kidney from underwater shock waves.
- Provides critical ultrastructural evidence of shock wave-induced renal injury.
- Highlights the distinct pathology of shock wave damage compared to ischemic injury.