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[Uro-enteric prostheses: voiding activity and morphological changes of epithelium (author's transl)]
Summary
Graft function, particularly voiding, impacts epithelial changes in human entero-urinary grafts more than implantation duration. Good voiding leads to slight late ultrastructural changes, while poor function causes early alterations.
Area of Science:
- Urology
- Graft research
- Epithelial biology
Context:
- Investigating long-term outcomes of human entero-urinary grafts.
- Assessing ultrastructural changes in graft epithelium over time.
Purpose:
- To correlate epithelial ultrastructural findings with graft function and implantation duration.
- To understand the relationship between voiding efficiency and graft integrity.
Summary:
- Ultrastructural analysis of human entero-urinary grafts at 5 and 10 years post-intervention reveals changes related to functional defects, especially voiding.
- Graft implantation duration and sphincteric control are less influential than voiding effectiveness.
- Effective voiding correlates with minimal late ultrastructural changes, whereas flattening of macrovilli and cryptal coalescence are early indicators of dysfunction.
Impact:
- Findings suggest that epithelial changes do not prevent absorption/secretion in grafts.
- Highlights the critical role of functional voiding in maintaining graft ultrastructure.
- Informs future strategies for improving long-term graft viability and function.