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[Experimental renal transplantation of cirrhotic donor. II. Stereologic analysis]
J M Fernández Gómez1, T Concepción Masip, J F Val Bernal
1Servicio de Urología, Residencia Covadonga, Hospital Central de Asturias, España.
Abstract:
Cirrhotic nephromegaly is accompanied by an important glomerular growth that progress to glomerulosclerosis and is irreversible and independent of the initial cause. The deterioration of renal function in these patients following liver transplantation and in chronic cirrhotics may be secondary to glomerular sclerosis, also known as "hepatic glomerulosclerosis". We utilized stereologic methods to quantify the volumetric changes in cirrhotic rats, fundamentally the glomerular changes, before and after transplantation into healthy rats. We had initially intended to look for terminal cirrhotics that were potential kidney donors; however, currently many of these can be liver graft recipients. In our view, our findings can be applicable to these patients since the kidney is removed from a cirrhotic and transplanted into a healthy environment, as in our experiment.
Insights
Cirrhotic nephromegaly involves irreversible glomerular growth, termed hepatic glomerulosclerosis, leading to kidney damage. Transplanting kidneys from cirrhotic donors into healthy recipients revealed significant glomerular changes, impacting renal function.
Area of Science:
- Nephrology
- Hepatology
- Transplantation Medicine
Context:
- Cirrhotic nephromegaly is characterized by significant glomerular hypertrophy.
- This glomerular enlargement progresses to glomerulosclerosis, a condition independent of the initial cirrhotic cause.
- Renal function decline in chronic liver disease patients and post-liver transplant recipients may stem from hepatic glomerulosclerosis.
Purpose:
- To quantify volumetric changes in cirrhotic rat kidneys, focusing on glomerular alterations.
- To assess glomerular changes before and after transplantation into healthy rat recipients.
- To investigate the applicability of findings to human liver transplant recipients with potential kidney donors.
Summary:
- Stereologic methods were employed to measure glomerular volume changes in cirrhotic rats.
- Kidneys were analyzed pre-transplantation from cirrhotic donors and post-transplantation into healthy recipients.
- The study observed significant glomerular hypertrophy and sclerosis in kidneys originating from a cirrhotic environment.
Impact:
- Findings suggest that the cirrhotic environment itself induces glomerular changes, irrespective of the kidney's origin.
- This research has implications for understanding renal complications in liver transplant recipients and chronic cirrhotic patients.
- Highlights the potential for 'hepatic glomerulosclerosis' to affect kidney health even after transplantation into a non-cirrhotic host.