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| isle | 1. An island. 2. <entomology> A spot within another of a different colour, as upon the wings of some insects. Origin: OF. Isle, F. Ile, L. Insula; cf. Lith. Sala. Cf. Insulate. Source: Websters Dictionary (01 Mar 1998) |
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| islet | A small island. (05 Mar 2000) |
| islet amyloid peptide | <hormone, protein> Peptide of 37 amino acids that selectively inhibits insulin stimulated glucose uptake in muscle. Structurally related to calcitonin gene-related peptide. (15 Oct 1997) |
| islet cell | <pathology> Cells of the Islets of Langerhans within the pancreas. See: A cells, B-cells, D cells. (18 Nov 1997) |
| islet cell adenoma | <tumour> A benign neoplasm of the pancreas composed of tissue similar in structure to that of the islets of Langerhans; it may contain functioning beta cells, and may cause hypoglycaemia. See: insulinoma. Synonym: nesidioblastoma. (05 Mar 2000) |
| islet cell antibodies | In first-degree relatives of probands with insulin-dependent diabetes mellitus the presence of high titre ICA of the IgG cytoplasmic variety (IgG -ICA) and ICA of the complement-fixing subgroup (CF-ICA) confer a relative risk of 75 for development of insulin-dependent diabetes mellitus. The presence of ICA combined with a decrease in the first-phase of insulin secretion ( less than 25 micro U/mL) is predictive with a 95% likelihood of the development of insulin-dependent diabetes mellitus within 12 months. Reproducible results among laboratories are possible with careful attention to selection of the human pancreas as substrate as well as to the use of dilutions to generate standard curves and to the conversion of results to units. The prozone phenomena described elsewhere are not common in our experience. Fifty percent of relatives with a single positive ICA test will develop insulin-dependent diabetes mellitus within 10 years, and 60-80% of relatives with both ICA and insulin autoantibodies (IAA) will develop insulin-dependent diabetes mellitus within 10 years. The predictive value for health of negative results for ICA and IAA is almost 99%. Strong, persistently positive ICA (i.e., 40 JDF U or greater), especially if accompanied by markedly decreased insulin secretion, are the best predictors of subsequent development of insulin-dependent diabetes mellitus. The 64 kD beta-cell autoantigen long thought to be an important target for ICA is not yet available from expression cloning despite efforts by several groups.13 ICA positivity correlates with rapid loss of C-peptide secretory capacity in newly diagnosed ICA-positive insulin-dependent diabetes mellitus. The predictive values of ICA for development of insulin-dependent diabetes mellitus within 10 years in first-degree relatives of patients with insulin-dependent diabetes mellitus increase from 40% at low levels of ICA to 100% at high levels, whereas the sensitivity is 88% at low levels and 31% at high levels. In general, the risk of insulin-dependent diabetes mellitus in relatives of probands increases with titre of ICA, is greater in multiplex families, and is increased in those less than 10 years of age with positive ICA. Although the prevalence of ICA in Japanese with autoimmune thyroid disease resembles that in Caucasians, the incidence of insulin-dependent diabetes mellitus in the Japanese population is only 1/30 - 1/50 that in Caucasians. Prediabetics positive for ICA and IAA have increased suppressor-inducer (CD45R) and decreased helper-inducer (CDw29) peripheral blood lymphocytes. In two randomised, prospective, placebo-controlled studies of recent-onset insulin-dependent diabetes mellitus, cyclosporine immunosuppression increased the rate of non-insulin-requiring remissions as well as beta-cell function during drug treatment. Although 12 months of cyclosporine therapy decreases titres of ICA and insulin antibodies (IA) and increases glucagon-stimulated levels of serum C-peptide, the determination of ICA and IA and HLA-DR type are of no predictive value in selecting recent- onset insulin-dependent diabetes mellitus. Patients for cyclosporine immunointervention. Genetic control of autoimmunity in insulin-dependent diabetes mellitus is reviewed. EIA for autoantibodies to a 64 kD islet-cell protein is promising for prediction of insulin-dependent diabetes mellitus, but sensitivity and specificity are still suboptimal. See also: insulin antibodies. (05 Mar 2000) |
| islet cell antigen-related protein-tyrosine phosphatase | <enzyme> Receptor-like autoantigen found in insulin-dependent diabetes; genbank l76258 Registry number: EC 3.1.3.- Synonym: iar ptp (26 Jun 1999) |
| islet neogenesis-associated protein | <chemical> Constituent of ilotropin; stimulates proliferation of pancreatic ductal cells in vitro; from hamsters and humans; amino acid sequence given in first source Synonym: ingap protein, ingap gene product (05 Dec 1998) |
| islet tissue | <anatomy> Groups of cells found within the pancreas: A cells and B-cells secrete insulin and glucagon. See: D cells. (18 Nov 1997) |
| islet-cell-stimulating antibodies | <immunology> Autoantibodies to a putative beta-cell receptor; stimulate the release of insulin both in rodents and man; may be analogous to the thyroid stimulating antibodies that cause grave's hyperthyroidism Synonym: icsta (05 Dec 1998) |
| Islets of Langerhans | <anatomy> Groups of cells found within the pancreas: A cells and B-cells secrete insulin and glucagon. See: D cells. (18 Nov 1997) |
| islets of langerhans transplantation | The transference of pancreatic islets within an individual, between individuals of the same species, or between individuals of different species. (12 Dec 1998) |
Synonyms : Cell, Islet, Cells, Islet, Endocrine Pancreas, Islet Cell, Islet, Pancreatic, Islets, Pancreatic, Langerhans Islands, Langerhans Islets, Nesidioblast, Pancreatic Islet
Synonyms : Islands of Langerhans Transplantation, Islands of Pancreas Transplantation, Islet Transplantation, Transplantation, Islands of Langerhans, Transplantation, Islands of Pancreas, Transplantation, Islet, Islet Transplantations, Islets Transplantation, Pancreatic
| islet |
isle: a small island
Ãâó: wordnet.princeton.edu/perl/webwn
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| islets of Langerhans |
islands of Langerhans: cell clusters in the pancreas that form the endocrine part of that organ; secrete insulin and other hormones
Ãâó: wordnet.princeton.edu/perl/webwn
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| islet cell |
A pancreatic cell that produces hormones (eg, insulin and glucagon) that are secreted into the bloodstream. These hormones help control the level of glucose (sugar) in the blood. Also called an endocrine pancreas cell and an islet of Langerhans cell.
Ãâó: www.stjude.org/glossary
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| islets of Langerhans |
Normal hormonprocucing cells in the pancreas, producing ao insulin.
Ãâó: www.gastrolab.net/dictei.htm
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| islets of Langerhans |
(EYE-lets of lANG-er-hanz): Hormone-producing cells in the pancreas.
Ãâó: www.spineuniverse.com/community/cancerdictionary.h...
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| isle | a small island |
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| isle | one of the British Isles in the Irish Sea |
| isle | an island and county of southern England in the English Channel |
| isle | a national park on an island in Michigan |
| isle | cell clusters in the pancreas that form the endocrine part of that organ |
| isle | an archipelago of small islands off the southwestern coast of England near the entrance to the English Channel |
| isle | a small island |
| isle | cell clusters in the pancreas that form the endocrine part of that organ |
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