scholarly journals The clinical course associated with dense deposits in the kidney basement membranes

1972 ◽  
Vol 1 (6) ◽  
pp. 420-427 ◽  
Author(s):  
Antoine Bernard ◽  
Faye Claude
Keyword(s):  
Clinical Course ◽  
Basement Membranes ◽  
Dense Deposits

The Dense Deposits Disease of the Renal Basement Membranes

1980 ◽  
Vol 3 (1-6) ◽  
pp. 414-417
Author(s):  
D. Droz ◽  
L.H. Noel ◽  
B. Nabarra ◽  
J. Leibowitch
Keyword(s):  
Basement Membranes ◽  
Dense Deposits

scholarly journals An Epizootic of Diffuse Glomerulonephritis in White Perch (Roccus americanus) from a Heavily Polluted Industrial Basin in Lake Ontario

1982 ◽  
Vol 19 (6) ◽  
pp. 638-645 ◽  
Author(s):  
H. W. Ferguson ◽  
R. D. Moccia ◽  
N. E. Down
Keyword(s):  
Lake Erie ◽  
White Perch ◽  
Lake Ontario ◽  
Environmental Pollutant ◽  
Basement Membranes ◽  
Polluted Water ◽  
Closely Related Species ◽  
White Bass ◽  
Dense Deposits ◽  
Rare Lesion

Examination of 43 white perch from a heavily polluted water basin showed all had severe diffuse glomerulonephritis. There were fibrinoid necrosis of tuft vessels, especially the afferent and efferent arterioles, and thickened basement membranes which ultrastructurally contained dense deposits in a subendothelial location. None of these lesions was found in white bass, a closely related species, from the same source nor in white perch from other relatively nonpolluted sites in Lake Ontario or Lake Erie. This is a dramatic example of a rare lesion in fish and possibly represents an immune-complex mediated response to an environmental pollutant.

scholarly journals Difficult Renal Pathological Classification in a Case of Pediatric Nephrotic Syndrome

2017 ◽  
Vol 7 (3) ◽  
pp. 161-166
Author(s):  
Hiroshi Yamaguchi ◽  
Atsutoshi Shiratori ◽  
Taku Nakagawa ◽  
Kyoko Kanda ◽  
Shigeo Hara ◽  
...  
Keyword(s):  
Nephrotic Syndrome ◽  
Complete Remission ◽  
Renal Biopsy ◽  
Clinical Course ◽  
Minimal Change ◽  
Albumin Infusion ◽  
Dense Deposits ◽  
Old Japanese ◽  
Foot Process ◽  
The Impact

The underlying histopathology is very important in determining patient management, as the histopathology usually has direct repercussions on the treatment response and clinical course. However, the impact of the method used to assess renal biopsies, i.e., light microscopy (LM), immunofluorescence (IF), and electron microscopy (EM), on the occurrence of a difficult biopsy classification in the native kidneys of pediatric nephrotic patients is unknown. A 12-month-old Japanese boy was diagnosed with nephrotic syndrome (NS); he was administered prednisolone (60 mg/m2/day), and a continuous albumin infusion was started. A renal biopsy using LM revealed minimal change. However, an IF study showed granular staining for immunoglobulin G along the glomerular basement membrane. Therefore, he was diagnosed with membranous nephropathy (MN). As his proteinuria was so severe, we started immunosuppressant therapy and continued the albumin infusion for more than 2 months. However, he did not attain complete remission. A month later, EM examination of his renal biopsy showed extensive foot process fusion without electron-dense deposits. Although the result of the IF study suggested MN, the results of the LM and EM studies indicated minimal change. We finally diagnosed the patient with minimal change NS, in consideration of his clinical condition and course. Because of the failure of previous treatments, pulse steroid therapy was started. After five rounds of therapy the patient attained complete remission. A difficult renal biopsy finding classification, dependent on the diagnostic method used, might occur in the native kidneys of pediatric nephrotic patients. Therefore, a diagnosis should be made after considering all renal biopsy findings and the clinical course.

Immune Complex-mediated Glomerulonephritis Associated with Bacterial Kidney Disease in the Rainbow Trout (Oncorhynchus mykiss)

1992 ◽  
Vol 29 (2) ◽  
pp. 169-174 ◽  
Author(s):  
S. Sami ◽  
T. Fischer-Scherl ◽  
R. W. Hoffmann ◽  
C. Pfeil-Putzien
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Indirect Immunofluorescence ◽  
Membranous Glomerulonephritis ◽  
Basement Membranes ◽  
Renibacterium Salmoninarum ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Dense Deposits ◽  
Antibody Titers ◽  
Immunoglobulin Deposits

Rainbow trout ( Oncorhynchus mykiss) developed a post-infectious chronic membranous glomerulonephritis 15 months after they had been experimentally infected with Renibacterium salmoninarum. Histologically, peritubular and periglomerular fibrosis, hypercellular glomeruli with occluded Bowman's space, and partial or complete adhesion to Bowman's capsule were constant features. Electron microscopy revealed thickened glomerular basement membranes with spikes accompanied by finely granular electron-dense deposits at the epithelial side and dense material in the mesangial matrix. Indirect immunofluorescence indicated linear immunoglobulin deposits along the glomerular basement membrane. The presence of R. salmoninarum was demonstrated by culture and by indirect immunofluorescence. Low serum hemagglutination-inhibiting antibody titers were demonstrated.

scholarly journals DUAL ULTRASTRUCTURAL LOCALIZATION OF ACID PHOSPHATASE IN MOUSE KIDNEY TUBULE CELLS

1973 ◽  
Vol 21 (7) ◽  
pp. 653-660 ◽  
Author(s):  
MITSUO SASAKI ◽  
WILLIAM H. FISHMAN
Keyword(s):  
Acid Phosphatase ◽  
Epithelial Cells ◽  
Ultrastructural Localization ◽  
Mouse Kidney ◽  
Basement Membranes ◽  
Structural Level ◽  
Enzyme Product ◽  
Dense Deposits ◽  
Tubule Cells ◽  
Distal Tubules

Localization of a membrane-associated acid phosphatase of the tubule epithelial cells of mouse kidney was demonstrated at the fine structural level using a postdiazo coupling technique designed by Smith and Fishman (1969). Enzyme activity appeared in the plasma and infolding membranes and in the lysosomes of epithelial cells of both proximal and distal tubules. Basal infolding membranes were stained most intensely by dense deposits of the enzyme product, which were localized in the outer leaflets. Basement membranes underlying the tubule cells also revealed dense enzyme product. These results were compared with those obtained by Gomori's technique on the same mouse kidney. In this case, lysosomes were positive and infolding and basement membranes were negative. The plasma membrane acid phosphatase is considered to be the morphologic counterpart of microsomal acid phosphatase observed in earlier biochemical studies in our laboratory. Finally, these findings can be interpreted as suggesting separate kidney microsomal and lysosomal isoenzymes of acid phosphatase, each possessing a separate ultrastructural identity.

scholarly journals Monoclonal and polyclonal immunoglobulin G deposits on tubular basement membranes of native and pretransplant kidneys: A retrospective study

2020 ◽  
Author(s):  
Anri Sawada ◽  
Masayoshi Okumi ◽  
Shigeru Horita ◽  
Tomomi Tamura ◽  
Sekiko Taneda ◽  
...  
Keyword(s):  
Iga Nephropathy ◽  
Immunoglobulin G ◽  
Antineutrophil Cytoplasmic Antibody ◽  
Basement Membranes ◽  
Native Kidney ◽  
Dense Deposits ◽  
Microscopic Evaluation ◽  
Renal Prognosis ◽  
Stable Renal Function ◽  
Hematological Investigation

Abstract BackgroundMonoclonal tubular basement membrane immune deposits (TBMID) are identified by renal biopsy and are associated with progression of interstitial injury in renal allograft. However, the significance of TBMID in the native kidney remains unclear.MethodWe retrospectively analyzed 3,126 native kidney biopsies and 1,724 zero-hour biopsies performed between 2008 and 2018 in our institution.ResultsThe rate of immunoglobulin G (IgG) TBMID was found to be 5.2 % among native kidney biopsies and 0.4 % among zero-hour biopsies. The rate of IgG TBMID was relatively common in the case of diabetic nephropathy (31.3%) and lupus nephritis (25.5%), but rare in IgA nephropathy (IgAN) (1.1%). Monoclonal IgG TBMID was identified in seven cases, including three zero-hour biopsies. The pathological diagnosis from native kidney biopsy was IgAN in two cases, antineutrophil cytoplasmic antibody-related vasculitis in one, and Focal segmental glomerulosclerosis in one. Zero-hour biopsy revealed IgAN in one case and mild atherosclerosis in two. The combination of IgG1κ was observed in two cases, IgG1λ in three, and IgG2κ in two. Interstitial injury is not severe in all cases. Electron microscopy revealed powdery electron-dense deposits. Monoclonal gammopathy of undetermined significance was diagnosed in one case with IgA nephropathy. Although One patient developed renal failure, all others exhibited stable renal function.ConclusionMonoclonal IgG TBMID in the native kidney is not associated with renal prognosis or interstitial injury. However, this could be a useful immunopathological parameter for early identification of cases requiring hematological investigation and microscopic evaluation.

Physical Properties of Isolated Perfused Renal Tubular Basement Membranes

1971 ◽  
Vol 29 ◽  
pp. 390-391
Author(s):  
Jared Grantham ◽  
Larry Welling
Keyword(s):  
Basement Membrane ◽  
Basement Membranes ◽  
Transport Mechanisms ◽  
Permeability Characteristics ◽  
Peritubular Capillaries ◽  
Strategic Location ◽  
Tubular Lumen ◽  
Glomerular Filtrate ◽  
Urine Formation ◽  
Renal Tubular

In the course of urine formation in mammalian kidneys over 90% of the glomerular filtrate moves from the tubular lumen into the peritubular capillaries by both active and passive transport mechanisms. In all of the morphologically distinct segments of the renal tubule, e.g. proximal tubule, loop of Henle and distal nephron, the tubular absorbate passes through a basement membrane which rests against the basilar surface of the epithelial cells. The basement membrane is in a strategic location to affect the geometry of the tubules and to influence the movement of tubular absorbate into the renal interstitium. In the present studies we have determined directly some of the mechanical and permeability characteristics of tubular basement membranes.

Organized Intraglomerular Deposits in NZB Mouse Disease

1971 ◽  
Vol 29 ◽  
pp. 544-545
Author(s):  
Francis R. Comerford ◽  
Alan S. Cohen
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Lupus Erythematosus ◽  
Antinuclear Antibodies ◽  
Human Systemic Lupus Erythematosus ◽  
Systemic Lupus ◽  
Glomerular Lesion ◽  
Ultrastructural Studies ◽  
Dense Deposits ◽  
Experimental Nephritis ◽  
Glomerular Lesions

Mice of the inbred NZB strain develop a spontaneous disease characterized by autoimmune hemolytic anemia, positive lupus erythematosus cell tests and antinuclear antibodies and nephritis. This disease is analogous to human systemic lupus erythematosus. In ultrastructural studies of the glomerular lesion in NZB mice, intraglomerular dense deposits in mesangial, subepithelial and subendothelial locations were described. In common with the findings in many examples of human and experimental nephritis, including many cases of human lupus nephritis, these deposits were amorphous or slightly granular in appearance with no definable substructure.We have recently observed structured deposits in the glomeruli of NZB mice. They were uncommon and were found in older animals with severe glomerular lesions by morphologic criteria. They were seen most commonly as extracellular elements in subendothelial and mesangial regions. The deposits ranged up to 3 microns in greatest dimension and were often adjacent to deposits of lipid-like round particles of 30 to 250 millimicrons in diameter and with amorphous dense deposits.

A web-like network of type vi collagen in human skin is revealed by immuno-electron microscopy

1988 ◽  
Vol 46 ◽  
pp. 382-383
Author(s):  
Douglas R. Keene ◽  
Robert W. Glanville ◽  
Eva Engvall
Keyword(s):  
Electron Microscopy ◽  
Monoclonal Antibody ◽  
Human Skin ◽  
Basement Membranes ◽  
Primary Antibody ◽  
Fat Cells ◽  
Secondary Antibody ◽  
Type Vi Collagen ◽  
Dermal Matrix ◽  
Immuno Electron Microscopy

A mouse monoclonal antibody (5C6) prepared against human type VI collagen (1) has been used in this study to immunolocalize type VI collagen in human skin. The enbloc method used involves exposing whole tissue pieces to primary antibody and 5 nm gold conjugated secondary antibody before fixation, and has been described in detail elsewhere (2).Biopsies were taken from individuals ranging in age from neonate to 65 years old. By immuno-electron microscopy, type VI collagen is found to be distributed as a fine branching network closely associated with (but not attached to) banded collagen fibrils containing types I and III collagen (Fig. 1). It appears to enwrap fibers, to weave between individual fibrils within a fiber, and to span the distance separating fibers, creating a “web-like network” which entraps fibers within deep papillary and reticular dermal layers (Fig. 2). Relative to that in the dermal matrix, the concentration of type VI collagen is higher around endothelial basement membranes limiting the outer boundaries of nerves, capillaries, and fat cells (Fig. 3).

Immunolabelling of glomerular deposits in kidney biopsies routinely fixed in glutaraldehyde

1989 ◽  
Vol 47 ◽  
pp. 910-911
Author(s):  
Ś Lhoták ◽  
I. Alexopoulou ◽  
G. T. Simon
Keyword(s):  
Uv Light ◽  
Kidney Diseases ◽  
Light Chains ◽  
Microscopical Level ◽  
Accurate Identification ◽  
Light Microscopical Level ◽  
Dense Deposits ◽  
Cacodylate Buffer ◽  
Glomerular Deposits ◽  
Prognostic Importance

Various kidney diseases are characterized by the presence of dense deposits in the glomeruli. The type(s) of immunoglobulins (Igs) present in the dense deposits are characteristic of the disease. The accurate Identification of the deposits is therefore of utmost diagnostic and prognostic importance. Immunofluorescence (IF) used routinely at the light microscopical level is unable to detect and characterize small deposits found in early stages of glomerulonephritis. Although conventional TEM is able to localize such deposits, it is not capable of determining their nature. It was therefore attempted to immunolabel at EM level IgG, IgA IgM, C3, fibrinogen and kappa and lambda Ig light chains commonly found in glomerular deposits on routinely fixed ( 2% glutaraldehyde (GA) in 0.1M cacodylate buffer) kidney biopsies.The unosmicated tissue was embedded in LR White resin polymerized by UV light at -10°C. A postembedding immunogold technique was employed

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