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Biomedical subjects

H Kaneshige

Publications and source records attributed to H Kaneshige.

45 records · Page 3Linked to original sources
PubMedDate not supplied

Effect of urokinase on preservation of renal function in patients with diabetic nephropathy.

Long-term effects of urokinase on the preservation of renal function in patients with diabetic nephropathy were evaluated. Twenty-nine adult patients with non-insulin-dependent diabetes mellitus and overt proteinuria were randomly divided into two groups. One group was treated with daily oral administration of dipyridamole or dilazep dihydrochloride and weekly intravenous administration of urokinase; the other group was treated with dipyridamole alone. There was a significant decrease in the amount of proteinuria in the first group after 3 months of the treatment compared with the second group. There was also a significant preservation of renal function in the first group after three years of treatment compared with the second group. It was concluded that continuous administration of urokinase in addition to antiplatelet agents is useful in the treatment of patients with diabetic nephropathy.

Diabetes Mellitus, Type 2↗
PubMedDate not supplied

Immunofluorescence staining of renal biopsy samples in patients with diabetic nephropathy in non-insulin-dependent diabetes mellitus using monoclonal antibody to reduced glycated lysine.

This is the first report on immunofluorescence staining of renal biopsy samples in human diabetic nephropathy (DN) using monoclonal antibodies to reduced glycated lysine. In order to detect the localization of glycated lysine in the mesangial matrix and/or the glomerular basement membrane (GBM), we examined immunofluorescence staining using antibodies against reduced glycated lysine in the glomeruli of 16 patients with DN and ten age-matched patients with diffuse mesangial proliferative glomerulonephritis without IgA deposition (DPGN) as controls. In the early stage of DN, immunofluorescence microscopy revealed the presence of intense staining for reduced glycated lysine in the GBM as well as in part of the tubular basement membrane, but not in the mesangial area. In contrast, immunofluorescence microscopy revealed less staining for glycated lysine in the GBM in the advanced stage of DN, and no reaction with any part of the renal tissue in patients with DPGN. It was concluded that detection of reduced glycated lysine in GBM in the early stage of DN might be associated with the initial pathogenesis of this disease.

Adult↗
PubMedDate not supplied

Correlation of renal histopathology duration of diabetes, and control of blood glucose in patients with type II diabetes.

Correlations of renal histopathologic changes, duration of diabetes, and the degree of control of blood glucose in patients with diabetic nephropathy were determined. Biopsies from 17 patients with diabetic nephropathy due to Type II diabetes were examined. Mild histopathologic changes in renal tissues were observed in patients with good blood glucose control, even if their disease was of more than 5 years' duration. Moderate to severe renal histopathology was found in patients with poor blood glucose control regardless of the duration of diabetes. It is concluded that strict control of blood glucose during the course of diabetes is important in inhibiting the progression of renal involvement in patients with Type II diabetes.

Adult↗
PubMedDate not supplied

Double immunofluorescence studies of glomerular sialic acids in patients with diabetic nephropathy.

A study of double immunofluorescence staining of sialic acids and IgG in the glomeruli from patients with diabetic nephropathy is described. Renal biopsy specimens from seven patients with diabetic nephropathy were stained with rhodamine-labeled tricum vulgaris (WGA), limulus polyphemus (LPA), and FITC-labeled anti-human IgG antiserum. Both binding of WGA and deposition of IgG in glomerular capillary walls were observed in all patients with diabetic nephropathy. However, the binding of LPA in tissue from the same patients was minimal, although deposition of IgG was marked. It is suggested that an accumulation of substances with an affinity for WGA (most probably N-acetyl glucosamine or N-acetyl neuraminic acid) occurs in the glomerular capillary walls of patients with diabetic nephropathy.

Adult↗
PubMedDate not supplied

Increase of IgA in pharyngeal washings from patients with IgA nephropathy.

The levels of IgA and total proteins in pharyngeal washings were examined in patients with IgA nephropathy and other glomerular diseases in order to determine whether secretory IgA, IgA1 and IgA2 were increased in these patients. Thirty patients with IgA nephropathy, 21 patients with other glomerular diseases and 15 healthy adults were examined. The levels of IgA were quantitated by radial immunodiffusion and laser nephelometry. The levels of total proteins in pharyngeal washings were quantitated by Tonein-TP. It was demonstrated that the levels of IgA in pharyngeal washings were significantly increased in patients with IgA nephropathy compared to those with other glomerular diseases and healthy adults. The levels of total proteins in pharyngeal washings were increased in patients with IgA nephropathy, and the ratio of IgA and total proteins in the washings from patients with IgA nephropathy was not significantly different from those healthy adults. There was a significant correlation between the levels of IgA in pharyngeal washings and those of IgA in sera from patients with IgA nephropathy. The IgA observed in pharyngeal washings contained secretory components, IgA1 and IgA2, in patients with IgA nephropathy. It is suggested that the increase of IgA in the pharyngeal washings in parallel with the increase of total proteins might be associated with local inflammation.

Humans↗
PubMedDate not supplied

Cross-reactivity of eluted antibodies from renal tissues of patients with henoch-Schönlein purpura nephritis and IgA nephropathy.

A study on the specificity of antibodies eluted from renal biopsy specimens from patients with Henoch-Schönlein purpura (HSP) nephritis, IgA nephropathy and other glomerular diseases is described. The specimens were treated with citrate buffer, pH 3.2, and the 'eluate' was neutralized by sodium hydroxide. The 'eluate' was then applied to the acid-treated sections obtained from the same patients and from other patients with HSP nephritis as well as to the sections from patients with IgA nephropathy and other glomerular diseases. The sections were stained with FITC-labeled heavy-chain specific anti-human IgA antisera and then examined with a fluorescent microscope. It was demonstrated that the antibodies obtained from patients with HSP nephritis specifically recombined with the glomerular mesangial areas in patients with IgA nephropathy and vice versa, whereas they did not combine with renal tissues obtained from patients without IgA nephropathy. These antibodies did not show antimesangial activity since they did not react with normal glomeruli or nephritic glomeruli other than those from cases with HSP nephritis and/or IgA nephropathy. The specificity of IgA antibodies was confirmed by various tests using anti-human IgA antisera, human IgA myeloma protein, whole serum samples, human gamma-globulin absorbed with anti-human IgG and/or IgM antisera or clostral IgA. It is suggested that some common antigens may be involved in the development of HSP nephritis and IgA nephropathy.

Antibodies↗
PubMedDate not supplied

Abnormal glucose tolerance in patients with chronic glomerulonephritis without renal failure.

An oral glucose tolerance test and an assay of insulin receptor activity were performed in patients with chronic glomerulonephritis (CGN) to elucidate the aberration of glucose metabolism in such patients. Ninety of 123 patients with CGN without renal failure showed abnormal glucose tolerance, including 72.6% with IgA nephropathy, 81% with benign recurrent hematuria, 87% with chronic proliferative glomerulonephritis, 100% with membranoproliferative glomerulonephritis, and 80.0% with membranous nephropathy. Insulin responses in CGN patients during oral glucose tolerance tests showed lower levels of basal insulin and significantly higher levels after 90, 120, and 180 min compared with those of normal controls. The binding of radiolabeled insulin to blood mononuclear cells in 22 CGN patients with abnormal glucose tolerance was significantly (P = 0.0023) decreased in comparison with 5 normal controls. However, plasma obtained from such patients showed no significant (P = 0.4761) inhibition of the binding of insulin to normal mononuclear cells. It was concluded that glucose tolerance capacity was impaired in 80.4% of patients with CGN without renal failure. Such impairment of glucose metabolism might be due to decreased activity of insulin receptors on cells in CGN patients.

Adolescent↗
PubMedDate not supplied

The effects of long term Tranilast administration on bronchial hypersensitivity in asthmatics.

Tranilast is an oral antiallergic agent developed in Japan. This study investigated the effect of prolonged administration of Tranilast on the bronchial sensitivity of 18 asthmatic subjects. They were treated for either less than 3 months or more than 3 months continuously. Methacholine loading testing was used to assess bronchial reactivity, and the respiratory parameters were recorded on an Astograph. Patients treated for longer than 3 months showed a significant decrease in bronchial sensitivity (p less than 0.05). The anticholinergic and bronchodilatory properties of Tranilast were also investigated in 8 subjects. No significant anticholinergic or bronchodilatory effects were observed following a single oral dose of 100 mg of Tranilast.

Adult↗