Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    ISSN: 1432-0428
    Keywords: C-peptide ; insulin antibodies ; glucose tolerance ; segmental pancreatic transplantation ; pancreatic transplant rejection ; brittle diabetes mellitus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Plasma C-peptide and serum insulin antibody levels were determined in 5 diabetic patients undergoing vascularized pancreatic transplantation. The grafts functioned well at first and exogenous insulin could be withdrawn, but one to 7 weeks later the grafts were rejected. After the transplantation there was an increase in the fasting plasma C-peptide level, and B-cell stimulation with glucose or glucagon evoked a C-peptide response. Healing of ischaemic damage was reflected in an increase in the C-peptide level. During graft rejection the C-peptide level fell. Measurement of plasma C-peptide levels provides a direct index of the B-cell function of the pancreatic graft. After transplantation the insulin antibody level fell exponentially, with an apparent half life of 10–11 days, whereas the level of total IgG was variable. The results indicate that formation of insulin antibodies ceases immediately on removal of the immunogenic stimulus, that is, on withdrawal of xenogeneic insulin.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1432-0428
    Keywords: Glucose ; Lipids ; Lipoproteins ; Pancreatic graft rejection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Long-term metabolic control after pancreatic transplantation with enteric exocrine diversion was evaluated in 42 Type I (insulin-dependent) diabetic pancreas recipients with functioning grafts for 1 to 7 years. Glycaemic control (fasting blood glucose, glycosylated haemoglobin A1c, oral and intravenous glucose tolerance tests) was normal or near-normal in most patients, and showed no deterioration with time. In ten patients with functioning grafts for 5 years there was a small, but significant, improvement in the glucose control at 3 to 5 years as compared with that at 6 months post-operatively. In the latter recipients the number of acute rejection episodes correlated negatively with the intravenous glucose tolerance at 6 months (r=−0.64, p〈0.01) and at 5 years (r=−0.60, p〈0.01) after transplantation, respectively. The glycaemic control at 6 and 12 months after transplantation was similar whether segmental (n=35) or whole-organ (n=7) pancreatic grafts had been used. In six non-uraemic recipients who had received a pancreas transplant alone the serum cholesterol increased in all but one patient (0.05〈p〈0.1), and the LDL/HDL-cholesterol ratio was significantly higher (p〈0.005) one year after transplantation than before. Conversely, in six diabetic patients who had lost the function of their single pancreatic grafts the lipid and lipoprotein profiles remained unaltered. It is concluded that the long-term glycaemic control after segmental or whole-organ pancreatic transplantation with enteric exocrine diversion remains essentially normal in most recipients, and it may even improve with time. The short- and long-term glucose control seems to be adversely influenced by the number of acute rejections. Moreover, in non-uraemic pancreas transplant recipients the lipoprotein profile changed towards a more atherogenic pattern. The latter findings are probably attributable to the immunosuppressive therapy.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...