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Query: UMLS:C0011849 (diabetes)
 277,896 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Isolated amyloid from the islets of Langerhans of patients with maturity onset diabetes mellitus was compared with amyloid fibrils from patients with different types of systemic amyloidosis. It was found that systemic amyloids had in common rigid and non-branching filaments with a width of about 75 A and that these filaments sometimes were attached laterally, forming thicker fibrils. Similar filaments could also be extracted from islet amyloid but the main part of this amyloid was built up by large aggregates of very thin and often very wavy units. This structure, which has not been previously described in human amyloid, probably explains some properties of isolated islet amyloid.
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PMID:Amyloid of human islets of Langerhans. II. Electron microscopic analysis of isolated amyloid. 13 51

The investigation covers the necropsic material of the Pathological Anatomy Chair, Medical Academy-Sofia, with a total of 3519 necropsies for a period of 5 years (1968--1970). In that material, 285 cases with uremia were established, due to chronic renal diseases, which might be referred to 13 nozological entities. The highest number of cases are with chronic pyelonephritis (64,96 per cent). The chronic glomerulonephritis, though it ranks second, is considerably rarely met (9,47 per cent). Endemic nephropathy, according to the incidence, follows--4,21 per cent, nephropathy in diabetes mellitus--3,86 per cent, subacute glomerulonephritis--3,16 per cent, amyloidosis--2,81 per cent, hypertonic disease--2,81 per cent, malignant tumors of the kidneys--2,81 per cent cystic kidneys--2,10 per cent, lupus erythematosus--1,05 per cent, sclerodermia--0,70 per cent, myeloma disease--0,70 per cent and polyarteriitis nodosa--0,35 per cent. As to the chronic renal disease, most frequently met in the material discussed, the chronic pyelonephritis, the authors discuss the factors that played certain role in its development as well.
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PMID:[Mortality due to uremia resulting from chronic kidney diseases]. 24 19

The authors, after presenting a review of research work on amyloidosis of the islets of Langerhans,, provide the information obtained from their study of a random sample of 200 autopsies. Special attention was paid to the correlation between amyloidosis of the islets of Langerhans, diabetes mellitus and aging. The analysis of the sample would show there is a close relationship between the general process of aging and insular amyloid deposits; diabetes mellitus would then occur, increasing the amount of the above-mentioned deposits only in patients of a more advanced aged.
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PMID:Amyloidosis of the isletes of Langerhans in relation to diabetes mellitus and aging. 32 67

Pancreatic islet volumes of patients with and without maturity onset diabetes mellitus were estimated. The islet volume of the diabetic patients was 1.01 +/- 0.12 cm3 (SEM) and that of the non-diabetic patients 1.60 +/- 0.16 cm3 with considerable overlap between the two groups. Islet amyloidosis was found in all the diabetic and in 9 of the 15 non-diabetic patients. When the amyloid deposits were excluded, the islet volume of the diabetic patients was 0.89 +/- 0.10 cm3, while that of the non-diabetic patients was unchanged, 1.60 +/- 0.16 cm3. There was still some overlapping. Since amyloid deposits seem to destroy the B cell membranes, it was postulated that a comparison of the volumes of islets completely free of amyloid might give a more true picture of the quantitative islet alterations in maturity onset diabetes. It was found that this islet volume of the diabetics was only 0.41 +/- 0.05 cm3 and that of the non-diabetic patients 1.58 +/- 0.16 cm3. These values correspond better to the altered insulin secretion in maturity-onset diabetes mellitus.
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PMID:The influence of amyloid deposits on the islet volume in maturity onset diabetes mellitus. 36 56

A normoglycemic, normoinsulinemic, "lean" phenotype KK mouse having a morphologically normal pancreatic islet had renal lesions reminiscent of diabetic glomerulosclerosis described in the literature for KK mice. Most of these animals also had splenomegaly. Using histochemical and ultrastructural methods, the renal and splenic lesions were demonstrated to be amyloidotic. Extensive deposits of amyloid were found in the liver and adrenals. Amyloidosis was found in all lean KK mice 4 months of age or older and in five of 11 C57BL/6J mice over 1 year of age. The validity of data attributing glomerulosclerosis to diabetes in mice that are neither glucosuric nor hyperglycemic or that show normal tolerance to glucose load should be questioned until amyloidosis is ruled out.
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PMID:Renal amyloidosis in KK mice that may be misinterpreted as diabetic glomerulosclerosis. 57 6

All the cases of spontaneous intracerebral hemorrhage that were autopsied between 1965 and 1976 at at Kuakini Hospital, Hawaii, were analyzed to determine the frequency of coexistent cerebral congophilic angiopathy. Seven of 75 cases (9.3%) were confirmed to have deposition of amyloid in the intracerebral vessels by means of polarized light microscopy and electron microscopy. The cerebral congophilic angiopathy was found to have predilection for aged patients and women (ratio of 6:1). Diabetes mellitus, hypertension, atherosclerosis, systemic amyloidosis, and paraproteinemia did not appear to be associated with this change. There is, however, a strong correlation between classic as well as compact senile plaques and this vascular lesion.
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PMID:Congophilic angiopathy and cerebral hemorrhage. 58 Jul 26

Simple bedside measurements of blood pressure and systolic pressure response to the Valsalva maneuver will confirm a clinical impression of orthostatic hypotension. Careful questioning of the patient usually elicits other symptoms of autonomic nervous system dysfunction, such as impotence, urinary and fecal incontinence, constipation or diarrhea, blurred vision, or sweating changes. Drugs are the most common cause of autonomic dysfunction, and their benefits should be weighed against the severity of the dysfunction. In addition, diabetes mellitus, uremia, amyloidosis, acute intermittent porphyria, myeloma, tabes dorsalis, and alcohol-nutritional problems may produce symptoms of autonomic dysfunction. Thus, patients who present with autonomic features but no history of dysfunction-producing drugs should undergo complete laboratory evaluation. A regimen of tyramine or L-dopa or a diet rich in cheese, processed meats, and wine (a monoamine), coupled with a monoamine oxidase inhibitor have beneficial effects in patients with orthostatic hypotension due to preganglionic autonomic dysfunction. Patients who do not respond to catecholamine precursors have stable, isolated orthostatic hypotension or a polyneuropathy such as that caused by diabetes.
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PMID:Evaluating dysfunction of the autonomic nervous system. 63 67

Recent observation of a case of idiopathic chronic intestinal pseudo-obstruction and the relationship sometimes suggested in this context with certain systemic diseases, such as scleroderma, led the authors to compare the changes seen in the myenteric plexuses in these different groups of disorders. The intramural plexuses were studied using the technique of B. Smith, in thick frozen section parallel to the lumen and stained using Bielchowsky's method. Plexus innervation was normal in a case of digestive amyloidosis and a case of myxoedema. There were secondary changes in the plexuses in scleroderma. The lesions were very different in our case of idiopathic chronic intestinal pseudo-obstruction (marked decrease in the number of neurones with degenerative changes in the neurones and dendrites, marked schwannosis). A decrease in the number of neurones was seen in a case of severe diabetes. Various mechanisms are discussed. These cases emphasize the great value of B. Smith's technique in the fine study of the intramural plexus innervation of the digestive wall.
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PMID:[Lesions of the myenterix plexuses in idiopathic chronic intestinal pseudo-obstruction and in certain general diseases]. 69 26

The results of kidney transplantation in a variety of renal diseases have been analyzed. The diseases causing end-stage kidney failure in recipients were Alport syndrome, amyloidosis, cystinosis, diabetes mellitus, Fabry disease, familial nephritis, gout, medullary cystic disease, oxalosis, and systemic lupus erythematosus. The data indicate that renal transplantation is justifiable and parallels functional results for the more common causes of end-stage renal disease in all but Fabry disease and oxalosis. Although Fabry disease did not recur in any grafted kidney, only three patients have a functioning graft one year after transplantation. From a group of ten patients with oxalosis who received a total of 14 kidneys, only one survives. In no other metabolic disease, except one instance of primary amyloidosis, did the metabolic disease notably affect the transplant as it did in oxalosis.
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PMID:Renal transplantation in congenital and metabolic diseases. A report from the ASC/NIH renal transplant registry. 80 49

The number of mast cells in the islets of Langerhans in 60 cases was determined in an autopsy study. The 60 patients were divided into 4 groups, distinguishing between those with diabetes, insular amyloidosis, those with both these pathological conditions and those with neither diabetes nor insular amyloidosis. As compared with the control group, it was discovered that there was a sharp increase in mast cells in the group with insular amyloidosis and in the group with diabetes; the number of mast cells tended to increase even more in the presence of both pathological conditions. With these data in hand, it is assumed that the increase in mast cells in the islets of Langerhans is not only due to the presence of amyloidosis, but that it is also brought about as a direct consequence of diabetes.
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PMID:Mast cells in the islets of Langerhans. A study of their behaviour in connection with diabetes and with insular amyloidosis. 80 51


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