Long-Term Tolerability of Etoricoxib in Patients with Previous Reactions to Non-Steroidal Anti-Inflammatory Drugs

Non-steroidal anti-inflammatory drugs frequently cause adverse reactions. This retrospective study was based on analysis of the data obtained from interviews conducted with 173 patients, who underwent and tolerated a challenge test with etoricoxib (a selective cyclooxigenase 2 enzyme inhibitor). Only one of 82 patients who were treated with etoricoxib reported reactions. We can conclude that etoricoxib shows a high long-term tolerability in patients with non-steroidal anti-inflammatory drug hypersensitivity.

Tomato atopy patch test in adult atopic dermatitis: diagnostic value and comparison among different methods

Tomato atopy patch test in adult atopic dermatitis.

[IFN-alpha-induced psoriatic arthritis and HCV-related liver cirrhosis. Therapeutic options and patient's opinion]

Hepatitis C virus (HCV) infection in the setting of Psoriatic Arthritis is an additional variable to be considered in the therapeutic approach to the disease because of the complications of an immunosuppressive treatment in the course of a chronic infection and the possible hepatotoxicity of many drugs conventionally used to treat psoriatic arthritis. The case reported explores the therapeutic options in a patient with IFN-alpha-induced psoriatic arthritis, characterised by severe arthritis and psoriasis but also the concomitant presence of HCV chronic hepatitis, in light of the patient's concerns.

Treosulfan-based conditioning regimen for allogeneic haematopoietic stem cell transplantation in patients with thalassaemia major

The safety and efficacy of a preparation with treosulfan/thiotepa/fludarabine were explored in 20 thalassaemia patients given allogeneic marrow transplantation. Seventeen patients were transplanted from unrelated donors after receiving anti-thymocyte globulin. The regimen was well tolerated. Two patients experienced secondary graft failure; one died of acute graft-versus-host disease. Cumulative incidence (95% confidence interval, CI) of transplantation-related mortality and graft failure was 5% (95% CI, 0-34%) and 11% (95% CI, 3-43%), respectively. Two-year probability of survival and thalassaemia-free survival was 95% (95% CI, 85-100%) and 85% (95% CI, 66-100%), respectively. This regimen might find elective application in patients at high risk of developing life-threatening complications.

Once daily levocetirizine for the treatment of allergic rhinitis and chronic idiopathic urticaria

Levocetirizine is the pharmacologically active enantiomer of cetirizine. It is a potent histamine H-1 receptor antagonist with anti-inflammatory and antiallergic properties. The review analyses the levocetirizine's properties in terms of safety and efficacy both in allergic rhinitis and urticarioid syndromes.

Delayed complete remission in a patient with multiple myeloma

We report a strikingly positive, late response to bortezomib in conjunction with pegylated liposomal doxorubicin in a 79-year old woman with multiple myeloma (MM). The patient obtained a partial remission after eight courses of therapy and a complete remission about 10 months after the end of therapy. This delayed complete remission may be similar to the spontaneous regression reported for other malignancies such as melanoma or lymphoma. We postulate that the immune response and a persistent anti-angiogenic effect of bortezomib could well explain the delayed complete remission in our patient.

HLA-B*2709 and lack of susceptibility to sacroiliitis: further support from the clinic

Interferons (IFN) are well known triggers of immunomediated diseases in genetically predisposed subjects. We describe the unique case of a HLA-B*2709 positive subject who underwent IFN-alpha treatment for essential thrombocythemia and developed arthritis of the proximal interphalangeal joints of the hands but not sacroiliitis. The possible mechanisms of IFN-induced arthritis are discussed.

Allergic Reactions to Inhalant Glucocorticosteroids: A Hot Topic for Pneumologists and Allergologists

Allergic contact dermatitis to topical glucocorticosteroids (GCS) is a delayed type cell-mediated hypersensitivity reaction; it is frequently observed in dermatological and allergological practice, although its incidence is likely underestimated. By contrast, allergic contact sensitization to inhalant GCS is virtually unknown to most pneumologists. Here, we review some cases of adverse reactions to inhalant GCS in terms of pathogenetic mechanisms, risk factors, epidemiology, and allergic cross-sensitivity. In fact, this particular form of sensitization to drugs that have a wide spectrum of use in pneumological practice deserves more attention than in the past.

Hemarthrosis as acute presentation of acquired hemophilia in a patient with systemic lupus erythematosus: successful treatment and long-lasting remission

Hemorrhagic events due to production of antibodies directed against coagulation factors are rarely observed in systemic lupus erythematosus (SLE). We report the case of a patient with clinically quiescent SLE who developed factor VIII inhibitor in acquired hemophilia presenting as hemarthrosis. Initial treatment with FVII, FVIII and FIX plasma concentrate, metilprednisolone and immunoglobulins i.v. were started but new hemorrhagic manifestation occurred. Plasma exchange was also administered, but it was discontinued early due to partial efficacy. In addition, pulse cyclophosphamide 0.5 g/m(2) was started. Eight weeks later, FVIII and FIX activity returned within normal ranges, FVIII and FIX inhibitors decreased significantly and hemorrhagic manifestations disappeared. The rare occurrence of acquired hemophilia due to the presence of anti-factor VIII antibodies associated to SLE, which was reviewed, might explain the lack of therapeutic guide-lines; indeed therapeutic options are available but the outcome in each single patient is not predictable.

A functional polymorphism of the vasoactive intestinal peptide receptor 1 gene correlates with the presence of HLA-B*2705 in Sardinia

The association of HLA-B27 with ankylosing spondylitis (AS) is the strongest among all inflammatory diseases. However, the exact role of these molecules in disease pathogenesis is still unknown. The existence of HLA-B27 variants rarely found in patients introduces a further level of complexity. It is now accepted that other genes of minor impact contribute to modify disease susceptibility and these genes might be diverse in different populations depending on the genetic background. We report here a study performed in Sardinia, an outlier population in which two major HLA-B27 subtypes are present, B (*)2705 strongly associated with AS and B (*)2709 which is not, and show the co-occurrence of the B (*)2705 allele with a single nucleotide polymorphism (SNP) mapping at 3'-UTR of the receptor 1 (VIPR1) for the vasoactive intestinal peptide (VIP), a neuropeptide with anti-inflammatory properties. This same SNP is associated with a different kinetics of down-modulation of the VIPR1 mRNA in monocytes after exposure to lipopolysaccharide (P=0.004). This particular setting, HLA-B (*)2705 and a functional polymorphism in VIPR1 gene, might be due to a founder effect or might be the result of a selective pressure. Irrespectively, the consequent downregulation of this receptor in the presence of a 'danger' signal might influence susceptibility to AS.

Clodronate inhibits angiogenesis in vitro and in vivo

The effects of amino-bisphosphonate clodronate on endothelial cell functions involved in angiogenesis, namely proliferation and morphogenesis on matrigel were tested in vitro, whereas its effects on angiogenesis were studied in vivo. This was performed by using the chick embryo chorioallantoic membrane (CAM) assay. In vitro, clodronate inhibited the endothelial cell proliferation in a dose-dependent fashion, peaking at 30 microM. At the same concentration, clodronate inhibited the fibroblast growth factor-2 (FGF-2)-induced capillary-like tube formation in the morphogenesis assay on matrigel. In vivo, when tested with the CAM assay, clodronate again displayed the capability to inhibit FGF-2-induced angiogenesis. Overall, these results suggest that antiangiogenesis by clodronate can be used to treat a wide spectrum of angiogenesis-dependent diseases, including certain chronic inflammatory diseases and cancer.

Association of MICA alleles with psoriatic arthritis and its clinical forms. A multicenter Italian study

OBJECTIVE

Analysis of the association between psoriatic arthritis (PsA) clinical forms and MICA gene transmembrane polymorphisms.

METHODS

Patients were classified as having peripheral asymmetric oligoarthritis (AO), peripheral symmetric poly-arthritis (PA) and spondylitis (SP), or disease combinations (PA/SP, OA/SP). Two hundred and twenty-six patients with PsA were typed for MICA exon 5 microsatellite (TM) by heteroduplex analysis and compared with 225 normal controls.

RESULTS

MICA-TM microsatellite typing revealed that, among the different clinical forms of PsA, only the combined PA/SP subset shows a significant positive association with MICA-A9 and a lower frequency of MICA-A4, A5 genotype in PsA patients with a decrease, only in the PA/SP cohort, of all MICA-A5 combinations except MICA-A5, -A9.

CONCLUSION

These results suggest a role for genes within the HLA region in the pathogenesis of PsA, and reinforce the idea that the different forms of PsA may have heterogeneous genetic basis.

Angiogenesis in vasculitides

Vasculitides, including Wegener's granulomatosis, Takayasu's arteritis, giant cell arteritis, Kawasaki disease, Behçet disease, thromboangiitis obliterans and erythema elevatum diutinum, are inflammatory diseases of blood vessel wall characterized by myointimal proliferation, fibrosis and thrombus formation leading to stenosis or occlusion of the vascular lumen, and finally to tissue ischemia. In these diseases the hypoxic environment subsequent to stenosis or occlusion of the vascular lumen is a potent signal for the generation of new blood vessels. Angiogenesis may be a compensatory response to ischemia and to the increased metabolic activity and may be also a further inflammatory stimulus because endothelial cells of newly-formed vessels express adhesion molecules and produce colony-stimulating factors and chemokines for leukocytes.