Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0024141 (systemic lupus erythematosus)
 44,322 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Sera and 5% PEG-precipitates from 20 patients with IMN, 18 with MPGN, 20 with SLE, 8 with anti-GBM disease and 17 with other varieties of glomerulonephritides, 19 patients with chronic liver or intestinal diseases, as well as those from 40 healthy adults, were tested by gel prcipitation for the presence of a ubiquitous tissue antigen (UTA) and/or its corresponding antibody, previously shown to be associated with renal disorders. The antigen was detected in sera of 5 patients with IMN, one with anit-GBM disease and one with SLE. Corresponding antibodies were present in sera of 2 patients with IMN. In 4 of 5 patients with IMN and UTA was only detected if the sera were first treated with PEG (mol. wt. 6,000) which induces precipitation of antigen-antibody complexes and other high molecular weight components in serum. The UTA was not detected in renal glomeruli by immunofluorescence. The possible significance of these findings in the pathogenesis of renal diseases is discussed.
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PMID:A ubiquitous tissue antigen and its corresponding antibody in sera of patients with glomerulonephritides. 82 47

Inhibition of complement mediated solubilization (CMS) of preformed immune complexes was previously demonstrated in the serum of patients with systemic lupus erythematosus. We studied the ability of serum from patients with MPGN I or III to inhibit the solubilization of preformed BSA- anti-BSA aggregates by pooled normal human serum. Inhibition of CMS was found in the sera of 20/35 patients; the inhibition was more dramatic in those with active disease (9/9), as compared to those in remission (8/21) or with renal failure (3/5). The inhibition did not seem to be related to corticosteroid therapy, nephrotic syndrome, circulating immune complexes or hypocomplementaemia. In only one patient was inhibition associated with the presence of C3 nephritic factor activity and decomplementation of the target serum.
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PMID:Inhibition of immune complex solubilization by sera of patients with membranoproliferative glomerulonephritis. 339 12

Phagocytes isolated from either normal donors or from patients with poststreptococcal (P-SGN), lupus erythematosus (SLE-GN), or membranoproliferative (MPGN) glomerulonephritis showed normal adherence to glass (PAg) after incubation in normal human serum (NHS), but was reduced after incubation in patient serum. Low PAg was the consequence of incubation of normal phagocytes with the earliest available sera from all 22 P-SGN patients, 28 of 37 SLE-GN patients, 19 of 25 patients with MPGN type I, all 10 with types II and III, and all 5 with nephritis associated with chronic bacteremia. Low C3 and decreased PAg were related by regression analysis in sera from patients with P-SGN (P less than 0.001), SLE-GN (P less than 0.005), and MPGN (P less than 0.001) type I. In patients with P-SGN and one patient with nephritis associated with chronic bacteremia, complement levels and PAg returned to normal in parallel with clinical improvement. In vitro, PAg was reduced by NHS treated with either zymosan or bovine serum albumin (BSA)-anti-BSA complexes but neither BSA-anti-BSA complexes or zymosan, previously incubated in NHS, reduced PAg. PAg was normal in serum deficient in C4 or C5 unless treated with zymosan.
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PMID:Reduction of phagocyte adherence by nephritic sera: relation to complement activation. 633 98

Recurrence of the original disease in the transplanted kidney is observed in 5.6%-9.3% of the patients. However, the clinical significance of recurrence is often minor. Diagnosis is easy in diseases with specific renal lesions, e.g., in dense deposit disease and IgA-nephropathy, but may be difficult if such a marker is missing. Recurrence is of special clinical importance in the following conditions: Membranoproliferative GN type I (in 33%, often severe) and type II (= dense deposit disease, recurrence in 90%, often minor), focal segmental glomerulosclerosis (in 48% of patients with a rapid course (less than 3 years) and in 12% of patients with a longer duration of the original disease; often severe), membranous nephropathy (recurrence rather rare, but often serious), and primary hyperoxaluria (in 100%). Mesangial IgA deposits recur in half of the patients with IgA-nephropathy and anaphylactoid purpura, but clinical findings are often minimal. Recurrence in anti-GBM-nephritis and SLE is rare. The study of recurrence may contribute to a better understanding of many renal diseases.
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PMID:[Recurrence of the original disease in the transplanted kidney]. 637 74

This paper presents the incidence of glomerulonephritis (-pathy: GN) from a large number of more than 10,000 serial renal biopsies examined in one laboratory using the same criteria over the past 25 yrs. in Japan. Each incidence is as follows: IgA nephropathy (IgAN), 33%; thin glomerular basement membrane disease (TBMD), 17.8; athletic pausal urinary abnormality (APUA), 8.2; primary membranous glomerulonephritis (memb GN), 6.5; while all others were less than 5% each. Out of 3,300 IgAN cases, 51% consisted of a minimal change IgAN (MCIgAN), while the IgAN cases with moderate to severe glomerular damage comprised 20% of all cases. In addition, the survival curves of the IgAN cases coincided with those of FGS and benign nephrosclerosis (BNS) with a similar extent of glomerular damages. On the other hand, glomerular damage mostly occurred due to intra- and intercapillary cell infiltration; poststreptococcal GN (AGN), lupus N, Cat. III a IV a and IV b, and MCIgAN all had a favorable outcome (follow-up mean: 12.4 +/- 6.7 yrs). More than 50% of the dialized patients came from both IgAN, focal type with hypertension, and IgAN with more than moderate glomerular damage regardless hypertension. The incidences of AGN, MPGN, HBvN have all decreased at the present time, while renal amyloidosis and crescentic glomerulonephritis (Cres. GN) have increased in number and this is reflected by the increased number of renal biopsies in elderly men. Glomerular deterioration is thus considered to be caused more by non-immunologic and hemodynamic injuries than by immune-derived, repeated inflammation, in human chronic glomerulonephritis(-pathy).
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PMID:[Histopathology of the biopsied kidney and its related glomerular deterioration]. 760 25

It has been reported that circumferential mesangial interposition (CMI) is an important morphological feature suggesting the progression of glomerulosclerosis in glomerular disease. The relation between CMI and its associated lesions was investigated in various renal diseases by electron microscopy. In 276 patients, of whom the glomeruli were observed by electron microscopy, CMI was observed non-specifically in 48 patients with various glomerular diseases (IgA nephropathy, 11; non-IgA glomerulonephritis, 1; membranoproliferative glomerulonephritis, 8; membranous nephropathy, 5; lupus glomerulonephritis, 12; toxemia of pregnancy, 2; diabetic nephropathy, 7; mitomycin nephropathy, 1; and Seckel's dwarfism patients, 1). The glomeruli with CMI showed a marked increase in mesangial matrix, as well as various grades of mesangial cell proliferation. Mesangiolysis associated with subendothelial widening was observed in a lesion of CMI in most cases. This phenomenon appears to be an initial alteration that conducts proliferated cells to the peripheral portion of a capillary loop. Localized severe thinning of the glomerular basement membrane was frequently combined with CMI, particularly in IgA nephropathy patients. Endothelial cells were occasionally interposed into the widened subendothelial space. Subendothelial deposits were noticed in the CMI lesion, particularly in MPGN patients. In conclusion, in the process of glomerulosclerosis progression in various glomerular diseases, lytic and edematous changes initially occur in the mesangio-subendothelial system (mesangiolysis and subendothelial widening), then proliferating mesangial cells extend into the widened space (between GBM and endothelial cells), and reach the peripheral portion of a capillary loop.
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PMID:[An electron microscopic study of circumferential mesangial interposition in various renal diseases]. 965 10

To date, the underlying diseases and follow-up of Taiwanese children screened by urinalysis have not been reported. The grading of urine abnormalities varied from grade A (microscopic hematuria only), grade B (light proteinuria only), grade C (light proteinuria and microscopic hematuria) to grade D (heavy proteinuria). From January 1991 to August 1998, 630 students, aged 6-15 years and with positive urinary screening, were admitted to our hospital for further evaluation. Of these, 573 students had confirmed abnormal findings, 298 were boys, 275 were girls, and 294 students received a renal biopsy and have had regular follow-up visits. This study was designed to retrospectively elucidate: (1) the relationship between grading of urine abnormality and underlying disease; (2) the relationships among hypertension, grading of urine abnormality, and underlying disease; (3) the underlying disease of low serum C3 level; and (4) to determine whether urinary screening progressively decreased the number of students with end-stage renal disease (ESRD) annually. The results show that glomerular nephritis (GN) is still one of the major causes of urinary abnormalities. The most-important secondary GN was systemic lupus erythematosus (SLE) with lupus nephritis. One-quarter of the patients fulfilled at least four of the revised American Rheumatology Association (ARA) criteria for SLE at first administration, while the others who fulfilled only two to three of the revised ARA criteria had gradually developing signs and symptoms of SLE at follow-up. The percentage of SLE patients amongst anti-nuclear antibody (ANA) positive children was 72%. Membranoproliferative GN is very rare. The distribution of hypertension was 8.2% in grade A, 10.7% in grade B, 9.7% in grade C, and 28.9% in grade D urinary abnormality. There were statistical differences between grade D and either grade A or B or C (P<0.05). Lower serum C3 levels were found only in a minority of patients, including those with SLE. In this series, focal segmental glomerular sclerosis (FSGS) and active class IV lupus nephritis patients were found early enough to receive methylprednisolone pulse plus cyclosporine A therapy. To date there have been only 2 cases (5%) of FSGS with impaired renal function, and none of the lupus nephritis patients are in the predialysis stage. In conclusion, GN is still the major cause of urinary screening abnormality. ANA study is indicated in all Chinese students with abnormal urinary screening. The correlations between the severity of proteinuria and hypertension showed more-severe proteinuria in patients with nephritis as well as in those with hypertension.
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PMID:The underlying diseases and follow-up in Taiwanese children screened by urinalysis. 1132 70

Mycophenolate Mofetil MMF has been widely used in post-transplant immunosuppression. Its role is emerging in GN. MMF demonstrated promising results compared with cyclosphosphamide in stage IV lupus nephritis, in a recently published trial. It has been found to have a wide safety profile, with mostly gastroinetestinal side effects, which can be avoided through titration. Its action is through inhibition of the enzyme IMDPH (ionosine monophosphate dehydrogenase), leading to purine antagonism and inhibition of lymphocytes. We were aiming to demonstrate the efficacy of MMF in our GN population. In this study, we reviewed 17 patients who received MMF (dose - 1 gm po bid) for the past year. They were only included if it was given for the management of resistant primary glomerulonephritis. Complete remission has been defined as proteinuria of less than 0.5 g/day and partial remission as a reduction of proteinuria 50% of starting MMF therapy; all 17 MMF therapy patients uniformly achieved good BP ((29%) achieved complete remission and this group consisted of 1 membranous GN, 2 lupus GN (type IV and membranous), one FSGS and one with MPGN. Four of 17 (23%) were non-responders to therapy. This group articles.aspx? id=41 to side effects. We conclude that the MMF appears to be an effective alternate treatment modality in resistant membranous GN, lupus nephritis (type IV and V) and possibly MPGN, and to a lesser extent in resistant FSGS. Further prospective data may demonstrate the efficacy of MMF in GN.
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PMID:Mycophenolate Mofetil (MMF) Efficacy in Glomerulonephritis (GN), a Retrospective Analysis. 1820 55

The absence of a simple and widely applicable test for the measurement of NF activity has hampered the accumulation of evidence bearing on its nephritogenicity. The extensive modification of a screening test for this autoantibody, reported here, has increased the range and precision of the test and made it less laborious. C3b deposited on sheep E by the reaction of NF with NHS forms a C5 convertase which, with addition of rat EDTA serum, leads to hemolysis of the cells proportionate under the right conditions to the concentration of NF in the reaction mixture. The calibration line is straight or slightly concave and passes through the origin. The method detects the activity of both the NF of the amplification loop, NFa, found in MPGN type II, and the NF of the terminal pathway, NFt, found in MPGN types I and III. Interday coefficients of variation ranged from 6.6% to 13.5% and intraday from 7.0% to 12.6%. Although serum C3 levels can be markedly depressed when NF levels are high, C3 levels and NF activity generally correlate poorly. The C3 level could be low and NF absent or, occasionally, NF present with the C3 level normal. NF activity was absent from the stored serum of patients with active SLE, AGN or with an IgA nephropathy.
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PMID:A hemolytic method for the measurement of nephritic factor. 1841 Sep 42

Glomerular diseases are a common cause of chronic kidney disease (CKD) in many countries. The pattern of glomerular diseases has been reported in adult Sudanese patients but there has been no previous study on Sudanese children. The aim of this study is to describe the pattern of glomerular diseases in Sudanese children from a clinico-pathological perspective. We retrospectively reviewed the clinical records of 321 children seen with nephritis/nephrosis at the Pediatric Nephrology Unit, Soba University Hospital and Dr. Salma Dialysis and Kidney Transplantation Centre, Khartoum, Sudan during the period from 2002 to 2007. Biopsies were studied with light microscopy and immuno-histochemistry with electron microscopy performed abroad in selected patients (predominantly Alport's). The mean age of the 321 study children was 8.71 years (range 2 months-16 yrs) of whom, 188 were males (60.2%). The most common presentation was with the nephrotic syndrome, seen in 202 patients (62.9%). The most common glomerular disease encountered was minimal change disease, seen in 96 children (29.9%), followed by post-infectious GN in 78 (24.3%) and focal and segmental glomerulosclerosis, seen in 44 patients (13.7%). Membranoproliferative GN (MPGN) was seen in 43 patients (13.4%) while mesangioproliferative GN was seen in 24 (7.5%). Systemic lupus erythematosus (SLE) was the most common secondary glomerular disease accounting for 16 patients (4.9%). HBsAg was positive in 10 patients and the most common associated lesion was MPGN (60%). Histopathology enabled us to change the therapy in 55.3% of the patients. Our study suggests that the pattern of GN in our cohort of patients is comparable with reports from other parts of the world with a high prevalence of post-infectious GN. Renal biopsies have an important part in planning therapy and management. Also, the importance of establishing a Sudanese renal registry including pediatric patients is stressed.
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PMID:Pattern of glomerular diseases in Sudanese children: a clinico-pathological study. 2058 95


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