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High-throughput Fluorometric Measurement of Potential Soil Extracellular Enzyme Activities

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[Not Available].

¹Pathologischen Institut des Kantonsspitals Winterthur, Deutschland.

|November 1, 2013

Summary

Homogeneous capillary lesions were found in diabetic patients with and without Kimmelstiel-Wilson glomerulosclerosis, but not in controls. These pancreatic capillary changes may indicate diabetic microvascular complications.

Area of Science:

Pathology
Diabetology
Nephrology

Context:

Diabetic nephropathy is a significant complication of diabetes mellitus.
Kimmelstiel-Wilson glomerulosclerosis is a characteristic lesion of diabetic nephropathy.
Pancreatic microvasculature changes in diabetes are not well understood.

Purpose:

To investigate the presence and characteristics of homogeneous capillary lesions in the pancreas of diabetic patients.
To compare the occurrence of these lesions in patients with and without Kimmelstiel-Wilson glomerulosclerosis.
To differentiate these homogeneous lesions from other pancreatic microvascular changes.

Summary:

Homogeneous, PAS-positive capillary wall thickening was examined in pancreatic samples from 25 diabetics with Kimmelstiel-Wilson glomerulosclerosis, 54 diabetics without, and 70 non-diabetic controls.

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These lesions were observed in approximately one-third of cases with glomerulosclerosis, one-seventh of cases without, and none of the controls, primarily in extrainsular capillaries.

Histochemical analysis distinguished these homogeneous lesions from nodular Kimmelstiel-Wilson lesions and islet hyalinosis, with their pathogenesis remaining unclear.

Impact:

Identifies a distinct microvascular lesion in the pancreas associated with diabetes.
Suggests potential markers for diabetic microvascular disease beyond the kidney.
Highlights the need for further research into the pathogenesis and clinical significance of pancreatic capillary lesions in diabetes.