Do We Need Insulin Independence After Islet Transplantation?

Area of Science:

• Endocrinology
• Transplantation Immunology
• Nephrology

Background:

• Diabetic complications significantly impact kidneys, eyes, cardiovascular, and autonomic systems.
• Clinical islet transplantation (CITx) offers a potential therapeutic avenue for select patients.
• Assessing CITx impact on diabetic complication progression is crucial.

Purpose of the Study:

• To analyze diabetic complication progression post-CITx versus in patients awaiting transplantation.
• To compare beta scores, islet scores, and secondary complications between groups.

Main Methods:

• Retrospective analysis of 67 patients listed for pancreatic or islet transplantation (2008-2015).
• Comparison of islet function, complication development, and transplant outcomes between CITx (n=6) and waitlist (n=19) groups.
• 1-year follow-up assessment of clinical and biochemical parameters.

Main Results:

• 40% of CITx patients maintained good islet function at 1 year; none achieved insulin independence.
• No CITx patients developed new albuminuria or required ophthalmologic procedures, unlike the waitlist group (27% and 47%, respectively).
• Waitlist patients showed higher incidence of chronic renal failure (9%) and increased albuminuria.

Conclusions:

• Clinical islet transplantation demonstrates a potential to decelerate the progression of severe diabetic complications.
• CITx may offer protective effects against nephropathy and retinopathy in diabetic patients.
• Further research with larger cohorts is warranted to confirm these findings.