Search PubMed⌕ Search

Biomedical subjects

Carlo Salvarani

Publications and source records attributed to Carlo Salvarani.

At least 37 records · Page 2Linked to original sources

Reappraisal of the epidemiology of giant cell arteritis in Olmsted County, Minnesota, over a fifty-year period.

OBJECTIVE: To investigate time trends in the incidence and survival of giant cell arteritis (GCA) over a 50-year period in Olmsted County, Minnesota. METHODS: Using the unified record system at the Mayo Clinic, we identified all incident cases of GCA first diagnosed between 1950 and 1999. Incidence rates were estimated and adjusted to the 1980 United States white population for age and sex. The annual incidence rates were graphically illustrated using a 3-year centered moving average. Survival rates were computed and compared with the expected rates in the population. RESULTS: There were 173 incident cases of GCA during the 50-year study period. Of these, 79% were women and the mean age at diagnosis was 74.8 years. The overall age- and sex-adjusted incidence per 100,000 persons 50 years of age or older was 18.8 (95% confidence interval [95% CI] 15.9-21.6). Incidence was higher in women (24.4; 95% CI 20.3-28.6) than in men (10.3; 95% CI 6.9-13.6). Incidence rates increased significantly over the study period (P = 0.017); in particular, a progressive increase was observed from 1950 to 1979; subsequently, no substantial increases in incidence rates were observed. A cyclic pattern of annual incidence rates was apparent, with evidence of 6 peak periods. Survival among individuals with GCA was not significantly different from that expected in the population (P = 0.80). CONCLUSIONS: The incidence of GCA increased over the first 3 decades of the study, then remained stable over the last 20 years. The previously observed cyclic pattern of annual incidence rates was still apparent over a 50-year period. Overall survival in GCA was similar to that in the population.

Age Distribution↗

Factor V Leiden and prothrombin gene G20210A mutations in Italian patients with Behçet's disease and deep vein thrombosis.

OBJECTIVE: To evaluate the frequency and type of vascular lesions and to study the association of factor V gene G1691A (Leiden) and prothrombin gene G20210A polymorphisms with venous thrombosis in Italian patients with Behçet's disease (BD). METHODS: Included were 118 consecutive Italian BD patients followed over a 3-year period (1997-1999) who satisfied the International Study Group criteria for BD. The control group consisted of 132 healthy Italian blood donors. All BD patients and controls were genotyped by polymerase chain reaction and allele-specific restriction enzyme techniques for factor V Leiden and prothrombin gene G20210A polymorphisms. RESULTS: Vascular lesions were observed in 37 (31.4%) patients. The 2 most common lesions were subcutaneous thrombophlebitis (10.2%) and deep vein thrombosis (DVT) of the legs (22.8%). No significant demographic and clinical differences between patients with and without DVT were present. The distribution of allele and genotype frequencies of prothrombin gene G20210A and factor V Leiden polymorphisms did not differ significantly between BD patients and healthy controls. The frequencies of carriage rates of prothrombin gene G20210A and factor V Leiden polymorphisms in BD patients with and without DVT were similar. However, the frequency of 20210A allele was significantly higher in BD patients with ocular disease than in those without, particularly in the patients with posterior uveitis/retinal vasculitis. CONCLUSIONS: The frequency and types of vascular lesions in Italian BD patients were similar to those reported in studies from other countries. No association between factor V Leiden mutation and G20210A mutation in the 3'-untranslated region of the prothrombin gene with DVT was found. However, a prothrombin gene G20210A mutation may influence the development and severity of ocular involvement in BD.

Adolescent↗

Polymyalgia rheumatica.

Polymyalgia rheumatica (PMR) is an inflammatory condition of unknown etiology characterized by aching and stiffness in the shoulder and in the pelvic girdles and neck. In the past, PMR was considered a manifestation of giant cell arteritis (GCA) or a variant of elderly-onset rheumatoid arthritis (EORA). The current diagnostic criteria for PMR were empirically formulated by clinical experts who had studied the disease extensively. Arthroscopic, radioisotopic and magnetic resonance imaging studies all have indicated the presence of a synovitis in proximal joints and periarticular structures. The synovitis is probably responsible for the musculoskeletal symptoms in PMR. The prominence assigned to the proximal symptoms has probably overshadowed the less well recognized and more variable distal musculoskeletal manifestations which are present in about half of the cases. A normal erythrocyte sedimentation rate does not exclude a diagnosis of PMR. C-reactive protein and interleukin-6 seem to be more sensitive indicators of disease activity both at diagnosis and during relapse/recurrence. Corticosteroids are the drugs of choice for treating PMR. A course of treatment of 1-2 years is often required. However, some patients have a chronic, relapsing course and require low doses of corticosteroids for several years. Large, multicenter, double-blind, placebo-controlled studies are required to define the role of methotrexate and anti-TNF-alpha agents as corticosteroid-sparing drugs in PMR.

Aged↗

Are polymyalgia rheumatica and giant cell arteritis the same disease?

OBJECTIVE: To summarize the evidence about the relationship between polymyalgia rheumatica (PMR) and giant cell arteritis (GCA). METHODS: Review of relevant articles from the English-language literature. RESULTS: Epidemiologic studies suggest that PMR and GCA are closely related conditions affecting people over 50 years and frequently occurring in the same patient. PMR symptoms have been observed in 40 to 60 percent of GCA clinical series. Also, temporal artery biopsy may yield positive results for GCA in patients with isolated PMR. Conflicting HLA-DRB1 genotype results have been reported, and recent studies have shown that PMR and GCA have different expression of RANTES, TNFalpha microsatellite, and IL-6 promoter genetic polymorphisms. Search for a possible common infectious agent have yielded disappointing results. Although parvovirus B19 DNA is present in the artery wall of patients with GCA, this virus may be only an innocent bystander. Cytokine studies on a limited number of temporal artery biopsy specimens have shown that interferon-gamma is produced in GCA and not in PMR, suggesting that this cytokine may be crucial to the development of overt vasculitis. CONCLUSIONS: PMR and GCA frequently occur together but no definitive conclusions can be drawn about the nature of this association.

Aged↗

Soluble receptor activator of nuclear factor- kappaB Ligand (sRANKL)/osteoprotegerin balance in ageing and age-associated diseases.

Recently, novel members of the TNF/TNF receptor superfamily, receptor activator of nuclear factor- kappa B ligand (RANKL), its receptor RANK, and the decoy receptor osteoprotegerin (OPG), have been identified as paracrine mediators of both the immune system and bone functions. The balance of RANK/RANK-L and OPG is critical for osteoclastogenesis modulation and physiological bone remodeling. In order to evaluate whether RANKL/OPG balance is modified by ageing, we analyzed, by imunoassay, systemic levels of OPG and sRANKL in healthy elderly subjects (age range from 70 to over 90 years) and in patients affected by two age-related diseases, osteoarthritis (OA) and polymyalgia rheumatica (PMR), characterized by bone metabolism alteration and involvement of the immune system. We demonstrated that (a) plasma concentrations of OPG increased significantly with age; (b) conversely, sRANKL significantly declined in the group of subjects aged between 81 and 90 years, being similar to the young controls in the other age groups; (c) in OA and PMR, circulating OPG did not differ from plasma levels found in age-matched control groups, while sRANKL concentration was significantly increased compared to controls. Hence, in ageing, the sRANKL/OPG system appears to be modified, with prominent changes in circulating OPG levels; in OA and PMR, the sRANKL/OPG balance alteration was shown to be mainly due to the increase of plasma sRANKL concentration.

Adult↗

Fat suppression magnetic resonance imaging in shoulders of patients with polymyalgia rheumatica.

OBJECTIVE: To evaluate the sites of inflammatory process in the shoulders of patients with polymyalgia rheumatica (PMR) using fat suppressed magnetic resonance imaging (MRI). METHODS: Six consecutive, untreated new patients with PMR were investigated. Five patients with early rheumatoid arthritis (RA) and 4 patients with early psoriatic arthritis (PsA) with bilateral shoulder symptoms served as a control group. Bilateral shoulder fat-suppressed MRI sequences were performed in all patients and controls. We evaluated the presence of joint synovitis, bursitis, tenosynovitis, and bone and soft tissue edema. RESULTS: Bilateral subacromial/subdeltoid bursitis was found in all patients with PMR, in 1/5 (20%) patients with RA (p < 0.05), and in none with PsA (p < 0.02). Glenohumeral synovitis was present in all case and controls. Biceps tenosynovitis was observed in 4/6 (67%) patients with PMR, in 4/5 (80%) with RA (not significant, NS), and in all 4 patients with PsA (NS). No evidence of bone edema adjacent to the joint capsule and entheseal insertions or in the soft tissues was present in either cases or controls. CONCLUSION: The absence of extracapsular abnormalities in the early shoulder disease of PMR does not confirm the hypothesis of a capsular-based disorder.

Aged↗

Geographical and genetic factors do not account for significant differences in the clinical spectrum of giant cell arteritis in southern europe.

OBJECTIVE: To investigate whether genetic and geographical differences may influence the clinical spectrum of giant cell arteritis (GCA), we compared the demographic and clinical features of patients with biopsy-proven GCA from Reggio Emilia (Northern Italy) and Lugo (Northwest Spain) during a 15-year period. METHODS: We performed a retrospective review of the case records of all patients diagnosed with biopsy-proven GCA at Hospital Xeral-Calde (Lugo, Spain) and Hospital Santa Maria Nuova (Reggio Emilia, Italy) between 1 January 1986 and 31 December 2001. Both hospitals are the only referral centers for populations living in central Galicia and central Emilia Romagna, respectively. RESULTS: During the period of study, 194 Lugo residents and 126 Reggio Emilia residents were diagnosed with biopsy proven GCA. Reggio Emilia patients were more likely to be female (74% vs 54%; p = 0.0001). Although Lugo patients complained of headache (86%) more commonly than did those from Reggio Emilia (77%), the difference was only marginally significant (p = 0.05). The proportion of patients with visual manifestations or visual loss was remarkably similar (22% for visual manifestations and 17% for visual loss in Lugo and 29% and 21% for Reggio Emilia residents). The mean erythrocyte sedimentation rate prior to the onset of therapy was also similar. CONCLUSION: Apart from differences in sex, the clinical spectrum of GCA in these 2 Southern European regions was similar.

Aged↗

Vascular endothelial growth factor gene polymorphisms in Behçet's disease.

OBJECTIVE: To evaluate potential associations of vascular endothelial growth factor (VEGF) gene polymorphisms with Behçet's disease (BD) and disease expression. METHODS: Case patients were 122 consecutive Italian patients with BD followed at the Rheumatology, Ophthalmology, and Neurology Units in Bologna, Ferrara, Milano, Palermo, Potenza, Prato, Reggio Emilia, and Trento over a 3-year period (1997-99) and who satisfied the International Study Group criteria for BD. Also selected as a control group were 200 healthy age and sex matched blood donors. All patients with BD and controls were genotyped by polymerase chain reaction and allele-specific oligonucleotide techniques for +936 C/T (rs3025039) and -634 C/G (rs2010963) mutations and for an 18 base pair (bp) insertion/deletion (I/D) polymorphism at -2549 of the the VEGF promoter region. In vitro release of VEGF by peripheral blood mononuclear cells (PBMC) was investigated by ELISA in healthy controls homozygous for the polymorphisms studied. RESULTS: The carriage rates of the alleles I and -634C were significantly more frequent in patients with BD than in healthy controls [p corr = 0.036, OR 1.8 (95% CI 1.1-2.9) and p corr = 0.05, OR 1.8 (95% CI 1.1-3.0), respectively]. While the distribution of allele +936T was similar in patients with BD and healthy controls, its frequency was significantly higher in BD patients with posterior uveitis/retinal vasculitis than in those without (p = 0.022, OR 2.4, 95% CI 1.1-5.0). Lipopolysaccharide-stimulated VEGF production from PBMC of healthy subjects was higher in II homozygous than in DD homozygous. CONCLUSION: Our data indicate that carriers of -634C and I alleles are associated with susceptibility to developing BD.

Adolescent↗

Efficacy of infliximab in resistant psoriatic arthritis.

OBJECTIVE: To evaluate the efficacy and safety of the anti-tumor necrosis factor alpha monoclonal antibody infliximab in the treatment of active psoriatic arthritis (PsA) resistant to previous symptom modifying antirheumatic drugs. METHODS: Sixteen patients with peripheral active PsA with at least 6 months of methotrexate (MTX) therapy at a stable dosage were treated with infliximab administered at a dosage of 3 mg/kg at 0, 2, 6, 14, 22, and 30 weeks while continuing to receive MTX. Intake of nonsteroidal antiinflammatory drugs and corticosteroids was stable during the study period. Standard clinical assessments, erythrocyte sedimentation rate (ESR), and C reactive protein (CRP) were determined at baseline and at weeks 2, 6, 14, 22, and 30. RESULTS: By week 2, significant improvements were registered in the number of swollen and tender joints, visual analog scale for pain, patient and doctor global disease assessment scores, Health Assessment Questionnaire, Dougados functional index, ESR, and CRP. At week 30, the percentages of patients satisfying American College of Rheumatology (ACR) 20%, ACR 50%, and ACR 70% response rates were 64%, 57%, and 57%, respectively. In the 3 patients with active axial disease, spinal stiffness and pain resolved almost completely at week 2 and the improvement did not diminish over time. Psoriasis Area Severity Index improvement was 37% at week 2 and 86% at week 30. No patients dropped out for treatment failure. Side effects were observed in 4 of 16 patients, 2 of whom suspended the therapy due to a severe allergic reaction. CONCLUSION: In patients with resistant PsA, infliximab is an effective therapy without major side effects.

Adult↗

Endothelial nitric oxide synthase gene polymorphisms in giant cell arteritis.

OBJECTIVE: To examine potential associations of the Glu/Asp(298) polymorphism in exon 7 and the 4a/b polymorphism in intron 4 of the endothelial nitric oxide synthase (eNOS) gene with susceptibility to and clinical expression of giant cell arteritis (GCA), particularly in patients with versus those without ischemic complications. METHODS: Ninety-one consecutive patients with biopsy-proven GCA, who were residents of Reggio Emilia, Italy, and 133 population-based controls from the same geographic area were genotyped by polymerase chain reaction and allele-specific oligonucleotide techniques for eNOS polymorphisms in exon 7 and intron 4. The patients were separated into 2 subgroups according to the presence or absence of ischemic complications (visual loss and/or jaw claudication and/or aortic arch syndrome). RESULTS: The distribution of the Glu/Asp(298) genotype differed significantly between GCA patients and controls (corrected P [P(corr)] = 0.003). Carriers of the Asp(298) allele (Asp/Asp or Glu/Asp) were significantly more frequent among the GCA patients than among the controls (P(corr) = 0.0002, odds ratio 3.3, 95% confidence interval 1.7-6.3). The distribution of the 4a/b genotype was similar in GCA patients and controls. No significant associations were found when GCA patients with and without ischemic complications were compared. CONCLUSION: Our findings show that the Glu/Asp(298) polymorphism of the eNOS gene is associated with GCA susceptibility.

Aged↗

Treatment of refractory polymyalgia rheumatica with infliximab: a pilot study.

OBJECTIVE: To investigate whether infliximab has a steroid-sparing effect in the treatment of patients with polymyalgia rheumatica (PMR) who are resistant to corticosteroid (CS) therapy and have had CS-related side effects. METHODS: In a pilot study, infliximab 3 mg/kg was administered at weeks 0, 2, and 6 in 4 patients with relapsing PMR who were not able to reduce their prednisone dose below 7.5-12.5 mg/day and who had experienced multiple vertebral fractures. The patients were regularly monitored for clinical signs/symptoms and erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), and interleukin-6 (IL-6) during the one-year followup period. RESULTS: Two patients had a complete response to infliximab with clinical remission 2 weeks after the first infusion. At this time ESR and IL-6 values were normal and the patients were able to suspend prednisone. Normal ESR, CRP, and IL-6 levels persisted after the suspension of infliximab and prednisone during the followup period, paralleling the clinical remission. The third patient had a complete and persistent clinical remission 2 weeks after the first infusion, although IL-6 levels remained elevated during the followup period despite the normalization of ESR values. These 3 patients were symptom-free with normal ESR and CRP at the end of 1-year of followup. The fourth patient had continuous clinical activity associated with persistently elevated acute phase reactants, although IL-6 levels measured during followup were lower compared to baseline values and the patient was able to reduce prednisone dosage to 5 mg/day. CONCLUSION: Our encouraging results suggest that a controlled study may assess the efficacy of infliximab as CS-sparing drug in PMR.

Antibodies, Monoclonal↗

Vascular endothelial growth factor gene polymorphisms in giant cell arteritis.

OBJECTIVE: To examine potential associations of vascular endothelial growth factor (VEGF) gene polymorphisms with giant cell arteritis (GCA) and disease expression, in particular in patients with and without ischemic complications. METHODS: We enrolled 92 consecutive patients with biopsy-proven GCA residing in Reggio Emilia, Italy. Two hundred healthy blood donors from the same geographic area were selected as controls. All the GCA patients and controls were genotyped by polymerase chain reaction and allele-specific oligonucleotide techniques for 936 C/T and 634 C/G mutations and for an 18 bp insertion/deletion (I/D) polymorphism in the VEGF promoter region. In vitro release of VEGF by peripheral blood mononuclear cells (PBMC) was investigated by ELISA in controls homozygous for the polymorphisms studied. RESULTS: The carriage rates of the alleles I and C634 were significantly more frequent in GCA patients than in controls (p = 0.025, OR 1.9, 95% CI 1.1-3.1 and p = 0.015, OR 2.1, 95% CI 1.1-3.6, respectively). The distribution of allele T936 was similar in GCA patients and controls. No significant differences in the distribution of the polymorphisms studied were observed in patients with ischemic manifestations compared to those without ischemic manifestations. Lipopolysaccharide (LPS)-stimulated VEGF production by PBMC from controls was higher in II homozygous compared to DD homozygous patients. CONCLUSION: Our data indicate that carriers of C634 and I alleles are associated with susceptibility to developing GCA.

Aged↗

Is duplex ultrasonography useful for the diagnosis of giant-cell arteritis?.

BACKGROUND: Evidence of a dark halo on ultrasonography has been considered a specific sign of giant-cell arteritis and may replace temporal artery biopsy for the diagnosis of giant-cell arteritis in patients with typical clinical manifestations. OBJECTIVE: To assess the usefulness of temporal artery duplex ultrasonography and to compare this mode of ultrasonography with physical examination of temporal arteries for the diagnosis of giant-cell arteritis in patients with suspected giant-cell arteritis or polymyalgia rheumatica. DESIGN: Diagnostic test study. SETTING: Several divisions of Reggio Emilia Hospital, Reggio Emilia, Italy. PATIENTS: 86 consecutive patients with a suspected diagnosis of giant-cell arteritis or polymyalgia rheumatica identified over a 22-month period. MEASUREMENTS: The temporal arteries were examined in all 86 patients. Duplex ultrasonography of the temporal arteries was then performed by two ultrasonographers who were unaware of the clinical diagnosis. Before corticosteroid therapy was started, temporal artery biopsies were performed in all patients at the site targeted by the ultrasonographer. RESULTS: A hypoechoic halo around the lumen of the temporal arteries had a sensitivity of only 40% (95% CI, 16% to 68%) and a specificity of 79% (CI, 68% to 88%) for the diagnosis of biopsy-proven giant-cell arteritis. The negative likelihood ratio was 0.8 (CI, 0.5 to 1.2), and the positive likelihood ratio was 1.9 (CI, 0.9 to 4.1). When the thickness of the halo was at least 1 mm, specificity increased to 93% (CI, 84% to 98%) and the positive likelihood ratio increased to 5.7 (CI, 2.0 to 16.2); however, sensitivity remained low at 40% (CI, 16% to 68%). On physical examination, temporal artery abnormalities had a higher sensitivity of 67% (CI, 38% to 88%), a higher specificity of 99% (CI, 92% to 100%), and a higher positive likelihood ratio of 47.3 (CI, 6.5 to 342.4) than did ultrasonographic findings. None of the patients with giant-cell arteritis had a normal temporal artery inspection and a hypoechoic halo on ultrasonography. CONCLUSION: Evidence on ultrasonography of a halo around temporal arteries, either any halo or a halo 1 mm or greater in thickness, only modestly increased the probability of biopsy-proven giant-cell arteritis but did not improve the diagnostic accuracy of a careful physical examination.

Aged↗

Fast spin echo-T2-weighted sequences with fat saturation in dactylitis of spondylarthritis. No evidence of entheseal involvement of the flexor digitorum tendons.

OBJECTIVE: To establish by means of fast spin echo (FSE)-T2-weighted sequences with fat saturation if enthesitis of the flexor digitorum superficialis and profundus tendons is the primary lesion in spondylarthritis (SpA) finger dactylitis. METHODS: Eleven dactylitic fingers and their corresponding normal, contralateral fingers, belonging to 6 patients who met the Amor criteria for SpA, were studied by FSE-T2-weighted sequences with fat saturation. RESULTS: All dactylitic fingers showed moderate or severe fluid collection in the flexor tendon synovial sheaths. Involvement of the joint cavity was simultaneously present in at least one joint in 3 (27.3%) of the 11 fingers. A mild to moderate peritendinous soft tissue edema was observed in 5 (45.5%) of the 11 affected fingers. In no dactylitic finger was bone edema observed near the insertions of the flexor digitorum superficialis or profundus tendons or in other sites of the phalanges. No lesions were observed in the 11 contralateral, clinically normal fingers. CONCLUSION: In SpA dactylitis there is no evidence of enthesitis of the flexor digitorum tendons and joint capsules.

Adult↗