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Case study: periodic follow-up is necessary in morphea profunda to identify systemic evolution.

The term "morphea" includes a wide spectrum of clinical entities, varying from localized plaques of only cosmetic importance to deep lesions resulting in considerable morbidity for the patient. In fact, although survival rates are no different from that of the general population, localized scleroderma may be associated with development of substantial disability, as occurs in deep morphea and in pediatric patients (disabling pansclerotic morphea of children). We report a case of morphea profunda affecting a young man with severe, rapidly progressive, widespread skin involvement and focus on the eventual systemic evolution of such cases. A 40-year-old man was admitted in 2002 for progressive subcutaneous indurations, preferentially involving the right side of the trunk. His health was altogether good, with the exception of a beginning chronic obstructive bronchopneumopathy. There was no family or personal history of dysmetabolic, cardiovascular, neoplastic, or cutaneous disease. Three years earlier, the patient had noted the appearance of two infiltrated, intensely red lesions on the right laterocervical and paraumbilical regions. These had been interpreted as subcutaneous lipomatosis on the basis of an ultrasound scan. The lesions had become progressively larger, while their surface had assumed a scleroatrophic appearance. Thereafter, other lesions had developed on his chest and lower limbs, mostly distributed on the right side of the body. Clinical examination revealed well demarcated, depressed sclerotic plaques with ivory-colored centers and erythematous borders ("lilac ring") localized on the neck, chest, and lower abdomen and limbs (Figure 1). They were bound to the deeper structures and arranged in a band-like linear distribution on the right side of the chest and abdomen where they extended horizontally for more than 10 cm in diameter. These lesions were totally asymptomatic. In addition, arborizing telangiectasias were evident on the neck and upper chest (Figure 2). Laboratory investigations provided normal range of erythrocyte sedimentation rat and C reactive protein levels and other inflammation markers. Antinuclear antibody, antidouble-strand DNA, antimitochondrial, anti-extractable antigens (anti-centromere, anti-Scl-70, anti-U1RNP), and anti-Borrelia burgdorferi antibodies were negative. Circulating immunocomplexes binding C1q were substantially increased. Oesophageal x-rays and lower limb electromyography were within normal limits; ventilatory function testing revealed a mild obstruction consistent with the beginning of chronic obstructive pulmonary disease. Although nailfold capillaroscopy documented nonspecific findings of connective tissue disease (mega-capillaries, segmentary dilatation and destruction), the laser-Doppler flussimetry revealed few signs of microcirculatory abnormalities, in absence of Raynaud's phenomenon. An abdominal wall ultrasonography, performed on a sclerotic plaque, documented thinning of the subcutaneous tissue, with increase of the fibrous component and lower fascia and muscle retraction. The biopsy specimen from the abdominal region included fascia and the subcutaneous tissue (previously obtained from the lower abdomen) with epidermal atrophy, a thickening and homogenization of collagen bundles in the deep dermis and hair reduction. A perivascular lympho-monocytic and plasmacellular infiltration with a dermo-epidermal distribution was present. Moreover, septal fibrosis with a perivascular lymphoplasmacellular inflammatory infiltrate was documented within the abdominal rectus muscle. The diagnosis of morphea profunda was made on the basis of clinical and histopathological findings. A therapeutic regimen based on amino benzoic potassium (Potaba; Glenwood, LLC, Glenwood, NJ), oral prednisone, and topical clobetasol was started. After several months of follow-up, the patient had obtained only moderate improvement of the clinical findings.

Adult↗

Lymphokine-activated killer cell and natural killer cell activities in patients with systemic sclerosis.

OBJECTIVE: To determine the ability of T lymphocytes and natural killer (NK) cells from patients with systemic sclerosis (SSc) to respond to cytokines and to generate immune effector cells. METHODS: The numbers and percentages of peripheral blood T and NK cells were examined by 2-color flow cytometry, and NK and lymphokine-activated killer (LAK) cell function were measured in 4-hour 51Cr-release assays, in 34 patients with SSc. The patients were categorized into 3 subgroups: 10 had diffuse cutaneous disease of less than or equal to 3 years disease duration, 11 had diffuse cutaneous SSc of greater than 3 years duration, and 13 had limited cutaneous disease. RESULTS: Baseline and activated NK and T cell numbers and NK activity were normal in SSc patients. However, mean LAK activity was significantly depressed in all SSc subgroups. CONCLUSION: Decreased LAK cell function, despite normal numbers of circulating T and NK cells, indicates that SSc patients have poor ability to produce effector cells in response to interleukin-2.

Adult↗

Serum levels of interleukin-6 and interleukin-10 correlate with total skin thickness score in patients with systemic sclerosis.

Various growth factors and cytokines have been suggested to play a central role in initiating and developing fibrosis in systemic sclerosis (SSc). To determine which serum levels of soluble mediators are the most relevant to the degree of skin sclerosis in SSc, serum levels of various soluble mediators were examined by ELISA and correlated with skin thickening that was measured using modified Rodnan total skin thickness scoring (TSS) system. Serum levels of IL-4, IL-12, IL-13, tumor necrosis factor-alpha, connective tissue growth factor (CTGF), vascular endothelial growth factor, monocyte chemotactic protein-1, macrophage inflammatory protein-1beta, soluble IL-6 receptor, and soluble L-selectin were higher in SSc patients than normal controls. Levels of IL-6, IL-10, and CTGF in patients with diffuse cutaneous SSc were higher than patients with limited cutaneous SSc and controls. Serum levels of IL-6 and IL-10 positively correlated with TSS in patients with SSc (r=0.625, P<0.0001 and r=0.663, P<0.0001, respectively). In addition, IL-10 levels significantly correlated with pulmonary fibrosis. Thus, serum levels of IL-6 and IL-10 most strongly reflect the extent of skin thickening in SSc, suggesting that levels of IL-6 and IL-10 are useful serological indicators for skin fibrosis in SSc.

Adult↗

Antihistone antibodies in systemic sclerosis. Association with pulmonary fibrosis.

OBJECTIVE: To determine the prevalence and clinical significance of antihistone antibodies (AHA) in systemic sclerosis (SSc). METHODS: Serum samples from patients with limited cutaneous SSc (n = 44), diffuse cutaneous SSc (dcSSc; n = 48), and other SSc-related disorders (n = 22) were examined by enzyme-linked immunosorbent assay and immunoblotting for AHA. RESULTS: AHA were demonstrated in 29% of the 92 SSc patients and in 44% of those with dcSSc. The presence of AHA correlated with severe pulmonary fibrosis in those with dcSSc. Immunoblotting revealed that the predominant antigen was histone H1. CONCLUSION: AHA might be a serologic indicator of the severity of pulmonary fibrosis in SSc.

Adult↗

Ethnicity and race and systemic sclerosis: how it affects susceptibility, severity, antibody genetics, and clinical manifestations.

Most studies have suggested that ethnic factors impact significantly on systemic sclerosis. Extensive epidemiologic studies have been carried out in white individuals, and limited data suggest that blacks are affected twice as frequently; Japanese patients have a lower prevalence than whites. This highest rate that has been described has been in Choctaw Native Americans. Blacks have a lower age at onset, as well as a higher frequency of diffuse skin involvement, pulmonary disease, and an overall worse prognosis than whites. Limited data in Hispanics and Native Americans suggest that they have more severe disease than whites. Whites have the highest frequency of anti-centromere antibodies (associated with limited skin involvement and less pulmonary fibrosis), whereas blacks have a higher frequency of anti-ribonucleoprotein and fibrillarin autoantibodies; the latter is a nucleolar antibody associated with a poorer prognosis. Ethnic differences are also seen for associations with non-major histocompatibility complex genes, such as FBN1 (fibrillin) genes, in Choctaws and Japanese and SPARC (osteonectin) in whites, Hispanics, and Choctaws. Although these facts do not entirely rule out socioeconomic factors associated with ethnicity, nevertheless ethnicity has an important impact on the pathogenesis of systemic sclerosis, perhaps because of genetic factors.

Autoantibodies↗

Increased prevalence of symptomatic macrovascular disease in systemic sclerosis.

OBJECTIVES: To determine the prevalence of symptomatic macrovascular disease, as defined by the World Health Organisation questionnaire for intermittent claudication, in patients with systemic sclerosis (SSc), and to compare the prevalence in this population with a cross sectional population study group reported in the Edinburgh Artery Study (EAS). METHODS: A group of 53 patients with a diagnosis of limited or diffuse systemic sclerosis were identified from our register. They were asked to complete the WHO questionnaire to establish the presence or absence of intermittent claudication. In addition, each patient's case notes were reviewed to establish the existence of definite peripheral vascular disease and to determine their risk factor profile. RESULTS: Forty six patients responded to the questionnaire, giving a response rate of 87%. Intermittent claudication was found in 10 SSc patients (21.7%) according to the questionnaire (two with diffuse and eight with limited SSc), compared with a prevalence rate of 4.6% for claudication in the EAS. Three SSc patients experienced clinical events attributable to occlusion of a major artery proven on angiography. Four patients had hypertension, there were three current and four ex-smokers, and two had increased total cholesterol. None of these patients had diabetes. CONCLUSIONS: This study demonstrated a greater prevalence of macrovascular disease in patients with SSc than had been found in a neighbouring population.

Adolescent↗

[Morphological abnormalities of nailbed capillaries in connective tissue diseases].

The Capillaroscopy Unit of Broussais Hospital has carried out more than 6,000 examinations involving all areas of pathology and more particularly the special role which the method plays in connective tissue diseases. This experience was used to attempt to define the characteristics of the morphological abnormalities of the nailbed capillaries in connective tissue diseases in the adult. The study was deliberately limited to abnormalities of the capillaries themselves, with the exclusion of abnormalities of the pericapillary spaces, abnormalities of blood flow and abnormalities capable of manifesting themselves in the cold; though bearing in mind that the interpretation of a capillaroscopic examination can be perfectly credible only if all such anomalies are taken into consideration. The following capillaroscopic appearances have been included under the heading "morphological abnormalities": dystrophies, dilatations of the loops without megacapillaries, megacapillaries, telangiectasia, filiform loops, regressive capillaries, long loops and microaneurysms. Groups of these morphological abnormalities form more or less typical associations in connective tissue diseases.

Adult↗

HLA-DQB1 associations with anti-topoisomerase-1 antibodies in patients with systemic sclerosis and their first degree relatives. United Kingdom Systemic Sclerosis Study Group.

The frequency and functional properties of anti-topoisomerase-1 antibodies (ATA) have been studied in 58 systemic sclerosis (SSc) probands, 218 first degree relatives and 22 spouses. The dependence of ATA on the presence of certain HLA-DRB1 and HLA-DQB1 alleles was examined. ATA were detected by immunodiffusion, by absorption or inhibition of topoisomerase-1 enzymic activity, by immunoblotting of a K562 cell extract and by immunoprecipitation of 35S radiolabelled cell lines. HLA class II typing for HLA-DRB1 and HLA-DQB1 was performed by oligonucleotide typing in 49 families. Six probands and two relatives had ATA. The relatives with ATA had SSc. All eight individuals with ATA directly inhibited topoisomerase-1 function. Four of the eight had limited skin disease and four had diffuse skin involvement. The seven who were genotyped had at least one HLA-DQB1 allele encoding for tyrosine at position 30 of the first domain. Therefore, ATA are not widely dispersed within families, but rather are only present in those with SSc, and certain genetic requirements appear necessary for their generation.

Alleles↗

Elevated levels of circulating CD44 in patients with systemic sclerosis: association with a milder subset.

OBJECTIVE: To determine serum levels of soluble CD44 (sCD44), one of the adhesion molecules that regulate the migration of leucocytes, and clinical associations of these levels in patients with systemic sclerosis (SSc). METHODS: Serum sCD44 levels were examined by enzyme-linked immunosorbent assay. RESULTS: Serum sCD44 levels were elevated in SSc patients compared with normal controls. Serum sCD44 levels were higher in patients with limited cutaneous SSc than in those with diffuse cutaneous SSc. Patients with elevated sCD44 levels had pulmonary fibrosis less frequently than those with normal sCD44 levels. Serum sCD44 levels remained elevated during the follow-up in almost all patients with elevated levels at their first visit, whereas they remained normal in all patients with normal levels. CONCLUSION: Elevated sCD44 levels were associated with a relatively mild subset of SSc. These results suggest that CD44 could be a potential therapeutic target in SSc.

Adolescent↗

Correlation between serum E-selectin levels and panoramic nailfold capillaroscopy in systemic sclerosis.

E-selectin is expressed by the activated endothelium and its plasma levels are increased in patients with systemic sclerosis. Eighteen patients fulfilling the American Rheumatism Association criteria for systemic sclerosis, 15 females and 3 males, 42-70 years old, 9 with diffuse and 9 with limited forms, were sequentially recruited for this study. Serum E-selectin levels were determined by commercially available ELISA and their association with nailfold capillaroscopic abnormalities was investigated. Nailfold capillaries were analyzed by 16X magnification wide-field capillaroscopy. Two parameters on capillaroscopy were used to correlate to serum E-selectin: deletion and ectasia. Data were analyzed statistically by the Student t-test and Spearman correlation. Two-tailed P values below 0.05 were considered significant. E-selectin range was 38 to 200 ng/ml (80 +/- 39.94). There was a correlation between serum E-selectin levels and the deletion capillaroscopic score (r = 0.50, P < 0.035). This correlation was even stronger within the first 48 months of diagnosis (r = 0.63, P < 0.048). On the other hand, no association was observed between selectin and ectasia. Patients with diffuse disease presented higher serum E-selectin levels than patients with limited disease, although the difference was not statistically significant (96.44 +/- 48.04 vs 63.56 +/- 21.77 ng/dl; P = 0.08). The present study is the first showing a correlation between soluble serum E-selectin levels and alterations in capillaroscopy. The stronger correlation of deletion score in capillaroscopy in early disease suggests that serum E-selectin levels might be a useful biochemical marker of disease activity in systemic sclerosis.

Adult↗

[The expansion of NK CD56+ cells with reduced cytotoxicity in a female patient with systemic sclerosis].

An absolute and relative increase of circulating CD56+ (NKH1, Leu19) natural killer cells has been found in a patient with systemic sclerosis. The expanded natural killer cells exhibited reduced natural killer activity and antibody-dependent cell-mediated cytotoxicity. Furthermore, the limiting dilution analysis of spontaneous in vitro immunoglobulin synthesis demonstrated that the precursor frequency of immunoglobulin-secreting cells and the "single-hit" kinetics of the titration curve were similar to healthy controls, but strongly different from previously reported patients in whom CD16+NK cell subset was expanded. Thus, our findings might suggest that expanded CD56+ natural killer cells exhibit unique regulatory properties on B cell function in systemic sclerosis.

Aged↗

The diagnostic value of oesophageal transit scintigraphy for evaluating the severity of oesophageal complications in systemic sclerosis.

BACKGROUND: Oesophageal complications are common in systemic sclerosis (SSc). However, the ability to determine the severity of oesophageal complications according to SSc type and skin lesion has not been evaluated. METHODS: The study groups consisted of 35 patients with SSc who were classified into diffuse (n=20) and limited (n=15) cutaneous types, and 16 control subjects. An additional 26 consecutive patients were studied for an analysis of the reproducibility. The severity of a skin lesion was quantified by using a modification of Rodnan's total skin thickness scores. Oesophageal scans were performed after the subjects, in sitting and supine positions, had consumed potage soup. Condensed images of the dynamic study were classified into four patterns: normal, transient retention, slight retention and severe retention, in conjunction with parameters of retention fraction by analysing the time-activity curve. RESULTS: The highest reproducibility was obtained using retention at 90 s (R90, r=0.93). Analysis of the condensed images showed that the SSc patients had a higher incidence of severe retention than did the control subjects. Groups with diffuse-type SSc or a high skin thickness score showed a higher incidence of severe retention (P=0.041 and 0.0048, respectively) compared with the control and less severe groups. The R90 in the supine position differed significantly among the controls, the limited-type and diffuse-type SSc groups (mean+/-SEM, 10+/-1%, 24+/-5%, 38+/-6%, respectively; P=0.0004)). The group with high skin scores (i.e. > or =10) showed a higher R90 (41+/-6%) than did either the group with low skin scores (R90=23+/-5%) or the control group (P=0.0001). CONCLUSION: An oesophageal scan can detect both slight and severe types of oesophageal dysfunction, and can be used as a quantitative method that reflects functional abnormality in SSc.

Adult↗

Identification of autoantibodies to RNA polymerase II. Occurrence in systemic sclerosis and association with autoantibodies to RNA polymerases I and III.

In this study, autoantibodies to RNA polymerase II from sera of patients with systemic sclerosis have been identified and characterized. These antibodies immunoprecipitated polypeptides of 220 kD (IIA) and 145 kD (IIC), the two largest subunits of RNA polymerase II, and bound both subunits in immunoblots. These polypeptides were immunoprecipitated by the anti-RNA polymerase II monoclonal antibody 8WG16, which recognizes the carboxyl-terminal domain of the 220-kD subunit, and their identity to the proteins bound by human sera was confirmed in immunodepletion studies. Sera with anti-RNA polymerase II antibodies also immunoprecipitated proteins that were consistent with components of RNA polymerases I and III. In vitro transcription experiments showed that the human antibodies were an effective inhibitor of RNA polymerase II activity. In indirect immunofluorescence studies, anti-RNA polymerase II autoantibodies stained the nucleoplasm, as expected from the known location of RNA polymerase II, and colocalized with the anti-RNA polymerase II monoclonal antibody. The human sera also stained the nucleolus, the location of RNA polymerase I. From a clinical perspective, these antibodies were found in 13 of 278 patients with systemic sclerosis, including 10 with diffuse and three with limited cutaneous disease, but were not detected in sera from patients with other connective tissue diseases and from normal controls. We conclude that anti-RNA polymerase II antibodies are specific to patients with systemic sclerosis, and that they are apparently associated with antibodies to RNA polymerases I and III. These autoantibodies may be useful diagnostically and as a probe for further studies of the biological function of RNA polymerases.

Adenoviridae↗

Is occupational exposure to solvents associated with an increased risk for developing systemic scleroderma?

BACKGROUND: Our study was aimed to investigate in a German collective if there are any hints for an increased occupational or environmental risk to develop systemic sclerosis, especially, focussing on work-related exposure to solvents. Moreover, we tried to evaluate the feasibility of a sampling method addressing support groups. METHODS: A standardised questionnaire was published in two journals subscribed by members of two different support groups and all members were asked to complete the questionnaire and to return it anonymously. The subjects were not informed on the scientific hypotheses, nor did they know who of them belonged to the case group (scleroderma) or to the control group (multiple sclerosis). RESULTS: 175 questionnaires could be included in the statistical analysis. As expected, a female predominance was in our collective. In the male subpopulation, the occupational exposure to solvents was higher in the case group than in the control-group (70% versus 45.8%). Based only on the male subgroup, a tendency for an association between occupational exposure to solvents and the risk to develop systemic sclerosis was found. CONCLUSION: According to our experience in this case-control-study exposure misclassification, qualitative or quantitative, was an eminent problem. Within such a setting, it is generally very difficult to establish an exact dose-response relationship due to incomplete, imprecise or missing data concerning duration of exposure, frequency of use and kind of solvent. Additionally, a well-known problem in studies based on self-reported questionnaires is the so-called volunteer bias. Unfortunately, but similar to other studies assessing epidemiologic factors in such a rare disease, our study was of limited power, especially in the subgroups defined by gender.

Journal Article↗

Pulmonary involvement in progressive systemic sclerosis: sequential evaluation with CT, pulmonary function tests, and bronchoalveolar lavage.

Computed tomographic (CT) findings obtained in 53 patients with progressive systemic sclerosis were correlated with functional parameters and bronchoalveolar lavage (BAL) results, and lung changes over time were assessed in 17 patients. CT findings were normal in 21 patients (group 1) with otherwise normal lung function, except for subclinical alveolitis in seven patients. CT depicted pleural and parenchymal abnormalities in 32 patients, grouped according to the absence (group 2) or presence (group 3) of honeycombing. In group 2 (n = 13), mean values of functional parameters were normal, and BAL showed a significant increase in neutrophils compared to group 1 (P < .05). Among patients in group 3 (n = 19) with limited extent of honeycombing (n = 12), the mean diffusing capacity value was lower in patients with a moderate ground-glass profusion score (n = 4) than in those with a mild score (n = 8) (68% +/- 4 [standard error of the mean] vs 80% +/- 3). CT is the method of choice for evaluating parenchymal destruction, and profusion and extent of ground-glass opacities can help in predicting the severity of lung damage in areas devoid of destructive changes.

Adolescent↗

Palmar fasciitis and polyarthritis associated with ovarian carcinoma.

Six postmenopausal women (ages 50 to 65 years) developed palmar fasciitis and polyarthritis associated with a malignant ovarian tumor. Rheumatic signs preceded the diagnosis of adenocarcinoma of the ovary by 5 to 25 months. All had bilateral pain and limitation of motion of the shoulders and hands as well as prominent palmar fasciitis and polyarthritis. Arthritis of the elbows, wrists, knees, ankles, and feet was also common. Two patients had carpal tunnel syndrome. Nonresectable tumor with ascites and peritoneal metastatic seeding was found in all patients. Endometrioid carcinoma, poor tumor differentiation, and unusually severe stromal proliferation of fibrous tissue were seen. There was no consistent improvement of the musculoskeletal syndrome after corticosteroid treatment or chemotherapy. All patients died 2 to 17 months after diagnosis of the neoplasm.

Adenocarcinoma↗

Gastric antral vascular ectasia (watermelon stomach) in patients with systemic sclerosis.

This report describes 5 patients with systemic sclerosis (SSc) who developed severe, recurrent upper gastrointestinal (GI) bleeding due to gastric antral vascular ectasia (GAVE). The clinical records, the endoscopic findings, and the histologic appearance of biopsy specimens and surgically resected gastric tissue from the patients were reviewed. All 5 patients developed severe and recurrent episodes of upper GI bleeding leading to severe anemia requiring multiple transfusions. The cutaneous involvement was diffuse in 3 patients and limited in 2. All but 1 had cutaneous telangiectasias. The diagnosis of GAVE was established by endoscopy within 3 years of the diagnosis of SSc in all cases. One patient required heater probe cautery, 2 required laser coagulation, and 2 underwent surgical resection of the gastric antrum for control of the GI bleeding. The possibility of GAVE should be considered in SSc patients who have recurrent upper GI bleeding. It is suggested that the antral vascular lesions in these patients may represent a component of the spectrum of vascular alterations of SSc.

Adult↗

Serum levels of soluble Fas/APO-1 receptor are increased in systemic sclerosis.

It has been suggested that rheumatic diseases may result from a deficit in Fas-mediated T-cell apoptosis. Recent studies have demonstrated increased soluble Fas in sera from lupus erythematosus patients. We were interested to determine whether elevated soluble Fas levels are associated with systemic sclerosis. Soluble Fas levels were retrospectively assayed using a sandwich enzyme-linked immunosorbent assay in serum from 30 patients with systemic sclerosis and 15 normal controls. Hospital medical records were retrospectively reviewed for clinical and laboratory characteristics of the patients. Soluble Fas levels were analysed in subsets of patients with limited (lcSSc) versus diffuse cutaneous systemic sclerosis (dcSSc) and correlated with inflammatory activity. In systemic sclerosis soluble Fas serum levels (lcSSc, 2.19 +/- 0.71 ng/ml, dcSSc 2.53 +/- 1.37 ng/ml) were significantly higher than in normal controls (1.26 +/- 0.36 ng/ml). However, there were no significant differences in soluble Fas levels between lcSSc and dcSSc and poor correlation between soluble Fas levels and inflammatory activity status. Detection of elevated soluble Fas might serve as a clinical marker for immunological dysregulation in systemic sclerosis, but not for inflammatory disease activity.

Antibodies, Antinuclear↗