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Neonatal lupus erythematosus with a high anticardiolipin antibody titer. Unusual variant of neonatal lupus erythematosus or early-onset systemic lupus erythematosus?

A malar rash associated with severe gastrointestinal manifestations developed in a 4-month-old baby 3 months after a normal delivery. Serum complement and IgA levels were low during the active phase of the illness. An increased anticardiolipin antibody titer was demonstrated at the onset of disease and persisted for more than 6 months, at which time the skin and gastrointestinal manifestations subsided. The baby's mother, who had no symptoms, had an elevated Ro (SS-A) antibody titer and a moderately elevated anticardiolipin antibody titer.

Antibodies, Antinuclear↗

The pathogenetic role of immunoglobulin G from patients with systemic lupus erythematosus in the development of lupus pleuritis.

OBJECTIVE: To investigate the pathophysiological effect of immunoglobulin G (IgG) from systemic lupus erythematosus (SLE) patients on pleural mesothelial cells and related mechanisms. METHODS: Serum IgG from 28 lupus patients and 13 healthy controls was purified by protein-G affinity chromatography. The concentrations of anti-dsDNA-, anti-histone- and/or anti-nucleohistone-containing IgGs were determined by enzyme-linked immunosorbent assay (ELISA). Lupus patients were divided into an active (n = 12) and an inactive group (n = 16) on the basis of the SLE Disease Activity Index (SLEDAI). The binding of IgG to a human pleural mesothelial cell line (MeT-5A) under different conditions, including pretreatment with DNase and preincubation with exogenous histone, DNA or nucleohistone, was examined using flow cytometry and cellular ELISA. The effect of IgG on MeT-5A cell proliferation was studied using an MTT assay. Gene expression and protein synthesis for interleukin 1beta (IL-1beta), monocyte chemoattractant protein 1 (MCP-1) and transforming growth factor beta1 (TGF-beta1) in MeT-5A cells were determined using reverse transcription-polymerase chain reaction and ELISA. RESULTS: The binding of IgG to MeT-5A cells was higher in the active lupus group than the inactive lupus group (P = 0.047) and controls (P = 0.003). The binding decreased in both lupus groups following pretreatment of MeT-5A cells with DNase. The binding of IgG to MeT-5A cells was greater by 112% in the active lupus group after preincubation with histone (P < 0.001), but not with DNA or nucleohistone. Exposure of MeT-5A cells to IgG from either lupus group induced cell proliferation when compared with IgG from healthy controls (P = 0.04). Gene expression and protein synthesis of MCP-1, TGF-beta1 and IL-1beta in MeT-5A cells were significantly increased after incubation with IgG from patients with active lupus when compared with IgG from the inactive lupus and control groups (P < 0.01). The concentration of anti-dsDNA antibodies correlated with the binding of IgG to MeT-5A cells and the synthesis of cytokines by MeT-5A cells. The serum level of anti-histone antibodies in the active lupus group was higher than that in the inactive group (P = 0.015) and the serum concentration correlated with cell binding and MCP-1 production. CONCLUSIONS: IgG from lupus patients can bind to MeT-5A cells and the binding is modulated by DNA or histone. Binding of anti-dsDNA-containing IgG to MeT-5A cells induces the synthesis of proinflammatory cytokines. Our findings suggest that the binding of anti-dsDNA antibodies, particularly the IgG isotype, to pleural mesothelium plays a direct pathogenetic role in inducing inflammatory injury in the serositis of SLE.

Acute Disease↗

Acute abdominal pain in systemic lupus erythematosus: focus on lupus enteritis (gastrointestinal vasculitis).

OBJECTIVE: To determine the causes of acute abdominal pain in systemic lupus erythematosus (SLE) and to compare the clinical and laboratory data, especially antiphospholipid antibodies and the SLE Disease Activity Index (SLEDAI), between lupus enteritis (gastrointestinal vasculitis) and acute abdominal pain without lupus enteritis in patients with SLE. METHODS: A retrospective study was carried out for all patients admitted with SLE from 1993 to March 2001. The SLEDAI and laboratory data were collected at the time of diagnosis of SLE and at the time of acute abdominal pain. Lupus enteritis (gastrointestinal vasculitis) was diagnosed by clinical investigation and abdominal computed tomographic findings. RESULTS: Chart review identified 175 patients (20 male, 155 female) who had been admitted with SLE. Of these patients, 38 (22%) presented with acute abdominal pain. Lupus enteritis was the most common cause of acute abdominal pain. Patients were divided into three groups: group 1: lupus enteritis (n=17), group 2: acute abdominal pain without lupus enteritis (n=21), and group 3: SLE without acute abdominal pain (n=137). There was no difference in age and sex among the three groups. Antiphospholipid, anti-RNP, anti-Sm, anti-Ro, and anti-La antibodies did not differ among the three groups. There was no difference in the SLEDAI at the time of diagnosis and at the time of acute abdominal pain between groups 1 and 2. Complement, erythrocyte sedimentation rate, C reactive protein, and anti-dsDNA measured at the time of acute abdominal pain did not differ between groups 1 and 2. A drop in the white blood cell count at the time of abdominal pain was more prominent in group 1 than group 2. In lupus enteritis, the jejunum and ileum were the sites most commonly affected. Rectal involvement was rare. Even though four patients relapsed, all the patients with lupus enteritis, including those who relapsed, responded well to corticosteroid. CONCLUSION: Lupus enteritis is the most common cause of acute abdominal pain in SLE. All patients with lupus enteritis responded well to a high dose of a corticosteroid without surgical intervention. The SLEDAI and laboratory data, except leucopenia, do not correlate with the occurrence of lupus enteritis.

Abdominal Pain↗

The use of the British Isles Lupus Assessment Group (BILAG) index as a valid tool in assessing disease activity in childhood-onset systemic lupus erythematosus.

OBJECTIVES: The British Isles Lupus Assessment Group (BILAG) index is a standardized systemic lupus erythematosus (SLE) disease activity assessment. The main aim of this study was to correlate the BILAG index with laboratory measures of disease activity in childhood-onset SLE with and without biopsy-proven lupus nephritis. METHOD: Prospective observational comparison study of the BILAG index in 21 SLE patients under 18 yr of age over a 12-month period in a tertiary referral paediatric outpatient clinic. RESULTS: Eleven patients with lupus non-nephritis and 10 patients with lupus nephritis were reviewed. The lupus nephritis patients had significantly (P<0.001) more admissions over a similar time interval since diagnosis. The renal BILAG disease activity scores were significantly greater (P = 0.013) in the lupus nephritis group (range 1-9, median 3.0, compared with 0-3 and 1.0 in the lupus non-nephritis group). The total BILAG scores and patient visual analogue scores (VAS) were higher in the lupus nephritis groups, unlike the lower physician VAS, but these differences were not statistically significant compared with other laboratory indices of disease activity. CONCLUSIONS: The BILAG index is a useful tool in monitoring disease activity in children and adolescents with SLE. The data collected for the BILAG index can be used serially and effectively by different clinicians over time to enable recording of disease status at sequential assessments. The lower patient VAS in the lupus non-nephritis group was not significant and may reflect the patients' own perception of lethargy at times of increased disease activity.

Adolescent↗

Chilblain lupus erythematosus (lupus pernio): clinical review of the Mayo Clinic experience and proposal of diagnostic criteria.

Five cases of chilblain lupus erythematosus were retrospectively reviewed regarding their clinical, histopathologic, serologic, and immunofluorescence findings. Ages at onset of chilblain lupus erythematosus varied from 26 to 73 years, with a female-to-male ratio of 3:2. Since other entities can be confused with this disorder, we propose the following diagnostic criteria. The two major criteria are skin lesions in acral locations induced by exposure to cold or a drop in temperature, and evidence of lupus erythematosus in the skin lesions by results of histopathologic examination or direct immunofluorescence study. The three minor criteria are coexistence of systemic lupus erythematosus or other skin lesions of discoid lupus erythematosus, response to anti-lupus erythematosus therapy, and negative results of cryoglobulin and cold agglutinin studies. We conclude that chilblain lupus erythematosus can be diagnosed and treated. Discoid lupus erythematosus lesions respond more quickly to treatment than chilblain lupus erythematosus lesions. Treatment with antimalarial agents, prednisone, pentoxifylline, or dapsone was of benefit to our patients.

Adult↗

Haemostatic factors associated with vascular thrombosis in patients with systemic lupus erythematosus and the lupus anticoagulant.

To elucidate the mechanism of vascular thrombosis in patients with systemic lupus erythematosus and the lupus anticoagulant changes in factors associated with haemostasis were investigated. The lupus anticoagulant was associated with an increased incidence of thrombosis, particularly cerebral thrombosis. Concentrations of fibrinopeptide A and fibrinopeptide B beta 15-42 were significantly raised in the plasma of patients with systemic lupus erythematosus and the anticoagulant compared with concentrations in patients without the lupus anticoagulant. The tendency towards formation of thrombosis was not found in all lupus patients with the anticoagulant, however. Concentrations of thromboxane B2 were remarkably raised in the plasma of the two patients with the lupus anticoagulant who had recently had thrombosis. Concentrations of 6-keto-prostaglandin F1 alpha, protein C, antithrombin III, and plasminogen were similar in both groups. No significant decrease in serum stimulatory activity on prostacyclin production by cultured aortic endothelial cells was noted in lupus patients with the anticoagulant, but inhibition was present in the two patients with recent thrombosis. These results indicate that although patients with the lupus anticoagulant are not always in a hypercoagulable state, haemostatic abnormalities found in some patients with the anticoagulant may be predictive of thrombotic events.

6-Ketoprostaglandin F1 alpha↗

Recurrent lupus nephritis in the second allograft of a patient with systemic lupus erythematosus.

Lupus glomerulonephritis is a common and serious complication of systemic lupus erythematosus (SLE) affecting up to 50% of lupus patients. Recurrent lupus nephritis is rare, complicating as low as 1% of the lupus transplant population according to some authors. However, it may be underreported with more realistic recurrent rates oscillating from 2.8 to 8.7%. We report the case of a patient with SLE who lost her first allograft 4 years after transplantation with a diagnosis of de novo fibrillary glomerulopathy. She underwent a second renal transplantation and her renal function was stable for the past 5 years. She now presented with skin rash, arthralgias and positive lupus serologies. Her creatinine was slightly elevated and proteinuria was also noted. A renal biopsy performed revealed a recurrent focal proliferative lupus nephritis (WHO III). Retrospectively, we believe that her first allograft was also lost to recurrent lupus nephritis. This is a unique case of recurrent lupus nephritis in the second allograft of a patient with SLE.

Adult↗

Occlusion of small hepatic veins associated with systemic lupus erythematosus with the lupus anticoagulant and anti-cardiolipin antibody.

We report the case of a woman with lupus anticoagulant-positive systemic lupus erythematosus who developed small hepatic vein occlusion. Since the age of 34, she had been known to have hepatomegaly. A definitive diagnosis of systematic lupus erythematosus was made eight years later. Histological evaluation of the liver biopsy specimen was not fully diagnostic of prominent hepatomegaly during this period. Occlusion of the small hepatic veins was confirmed by hepatic venography, but the lumen of the large hepatic veins showed a smooth appearance. The lupus anticoagulant and anti-cardiolipin antibody were both positive. Since a high incidence of thromboembolic diseases in patients with the lupus anticoagulant or anti-cardiolipin antibody has been reported, the presence of this type of anticoagulant may provide an explanation for hypercoagulability and subsequent development of hepatic vein thrombosis in this patient. This is the first report of a patient with systemic lupus erythematosus who developed an occlusion of small hepatic veins attributable to the lupus anticoagulant and anticardiolipin antibody. This case suggested that a systematic search for hepatic vein occlusion should be made in patients with systemic lupus erythematosus who have developed inexplicable hepatomegaly, especially in those with positive tests for the lupus anticoagulant and/or anti-cardiolipin antibody.

Adult↗

The Lupus Foundation as an additional source for case ascertainment: developing a community-based lupus registry.

OBJECTIVE: To determine whether the local Lupus Foundation of America (LFA) chapter would provide a unique source of additional lupus incident cases for a population-based incidence registry of SLE. METHODS: We reviewed membership and telephone records from the LFA to identify potential lupus cases. These potential cases were compared with the names on our previously developed incidence registry. Non-matches were interviewed concerning demographic characteristics and the signs and symptoms of lupus. RESULTS: Of the 449 potential lupus cases identified through the LFA Western Pennsylvania Chapter (WPC), 108 (24%) were already in the incident lupus registry. Of the remaining unmatched cases, 26 reported a diagnosis of lupus in Allegheny County between 1985 and 1990. Of these, 5 patients met the criteria for definite or probable lupus. CONCLUSION: The LFA-WPC provided a negligible advantage in identifying additional incident lupus cases to those already identified through an established registry.

Adult↗

Systemic lupus erythematosus and lupus syndromes in Senegal. A retrospective study of 30 patients seen over 10 years.

OBJECTIVE: To define the presenting manifestations, course and prognosis of systemic lupus erythematosus in Senegal. PATIENTS AND METHODS: Thirty cases of systemic lupus erythematosus and lupus syndromes seen over a ten-year period were reviewed retrospectively. Nineteen patients met American College of Rheumatology criteria for systemic lupus erythematosus. All 30 patients were Senegalese-born black women. Mean age at diagnosis was 30 years (range, 16-73 years). RESULTS: Polyarthritis was the most common presenting picture (n = 8), followed by discoid lupus (n = 6). Eight per cent of patients had at least a combination of skin and joint symptoms at diagnosis. Prevalences of organ involvement were as follows: skin, 97%; joints, 97%; kidneys, 57%; serous membranes, 43%; nervous system, 23% and blood, 83%. Mean symptom duration at diagnosis was 24 months in systemic lupus erythematosus patients and 43 months in lupus syndrome patients. This significant diagnostic delay explains why as many as five of the 30 patients (17%) died either before or within five months of treatment initiation. Eight patients (32% of treated patients) who had a favorable course under therapy were lost to follow-up after discharge. The overall mortality rate was 26%. Renal failure was the main cause of death, followed by infectious and neurologic complications. CONCLUSION: We anticipate that the reported prevalence of lupus in Senegal will rise in the near future as a result of improvements in diagnostic tools and of increased interest for lupus among physicians. We also hope that improved detection of mild and early forms, together with close long-term follow-up of patients, will translate into a better overall prognosis.

Adolescent↗