Spontaneous diabetes in rats: destruction of islets is prevented by immunological tolerance.
نویسندگان
چکیده
Spontaneous diabetes occurring in "BB" rats (derived from a colony of outbred Wistar rats) is the result of destruction of pancreatic islets by infiltrating mononuclear cells (insulitis) and may be a disease very similar to human juvenile onset diabetes. Both diseases probably have an autoimmune etiology. Evidence is presented that islets transplanted to diabetic BB rats are destroyed by the original disease process. Inoculation of bone marrow from normal (nondiabetes-susceptible) rat donors into neonatal BB recipients usually prevented the development of hyperglycemia.
منابع مشابه
T-cell Tolerance Following Bacterial Glutamic Acid Decarboxylase (GAD) Feeding in Streptozotocin-induced Diabetes
Background: Autoimmune type 1 diabetes mellitus is caused by T-cell mediated immune destruction of the insulin-producing β-cell in pancreatic islets of Langerhans. Specificity of the auto-antibodies and of the auto-reactive T-cells has been investigated, in which several auto-antigens were proposed. Objective: To determine whether glutamic acid decarboxylase (GAD) feeding would induce oral tol...
متن کاملPrevention of recurrent autoimmune diabetes in BB rats by anti-asialo-GM1 antibody.
BB rats exhibit a syndrome of spontaneous diabetes that has clinical and pathological characteristics analogous to those found in human insulin-dependent diabetes mellitus (IDDM). Islet tissue transplanted into spontaneously diabetic BB rats is uniformly destroyed by a recurrence of the autoimmune response that destroyed the diabetic subject's native islets. To examine recurrent autoimmune dest...
متن کاملMetabolic mechanisms of failure of intraportally transplanted pancreatic beta-cells in rats: role of lipotoxicity and prevention by leptin.
The objective of this study was to determine whether the late failure of beta-cells in islets transplanted via the portal vein is caused by excess insulin-stimulated lipogenesis and lipotoxicity and, if so, whether the damage can be prevented by reducing lipogenesis surrounding the islets. Based on the premise that high portal vein levels of nutrients and incretins would stimulate hyperinsuline...
متن کاملبررسی اثر کاتیونهای فلزی V5+, W6+ , Zn2+ بر میزان ترشح انسولین و فعالیت آنزیم گلوکوکیناز در جزایر لانگرهانس جدا شده از موش صحرایی سالم و دیابتی
Background: Insulin dependant Diabetes Mellitus (IDDM) is associated with a reduction in production or secretion of insulin from pancreatic Islets. On the other hand increase in insulin secretion will result in destruction of islets that will lead to Diabetes .Therefore the factors that could regulate secretion will prevent the onset of diabetes . Glucose metabolism that commences with the gluc...
متن کاملExpression of IGF-I in pancreatic islets prevents lymphocytic infiltration and protects mice from type 1 diabetes.
Type 1 diabetic patients are diagnosed when beta-cell destruction is almost complete. Reversal of type 1 diabetes will require beta-cell regeneration from islet cell precursors and prevention of recurring autoimmunity. IGF-I expression in beta-cells of streptozotocin (STZ)-treated transgenic mice regenerates the endocrine pancreas by increasing beta-cell replication and neogenesis. Here, we exa...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Science
دوره 213 4514 شماره
صفحات -
تاریخ انتشار 1981