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1.
Pharmaceuticals (Basel) ; 14(2)2021 Jan 29.
Article in English | MEDLINE | ID: mdl-33573015

ABSTRACT

Rheumatoid arthritis (RA) is a painful inflammatory disease of the joints which affects a considerable proportion of the world population, mostly women. If not adequately treated, RA patients can become permanently disabled. Importantly, not all the patients respond to the available anti-rheumatic therapies, which also present diverse side effects. In this context, monitoring of treatment response is pivotal to avoid unnecessary side effects and costs towards an ineffective therapy. Herein, we performed a pilot study to investigate the potential use of flow cytometry and attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectroscopy as measures to identify responders and non-responders to leflunomide, a disease-modifying drug used in the treatment of RA patients. The evaluation of peripheral blood CD62L+ polymorphonuclear cell numbers and ATR-FTIR vibrational modes in plasma were able to discriminate responders to leflunomide (LFN) three-months after therapy has started. Overall, the results indicate that both flow cytometry and ATR-FTIR can potentially be employed as additional measures to monitor early treatment response to LFN in RA patients.

2.
An Acad Bras Cienc ; 90(2 suppl 1): 2161-2166, 2018 Aug.
Article in English | MEDLINE | ID: mdl-29947664

ABSTRACT

Rheumatoid arthritis is a chronic disease of the joints, which causes joint pain and disability. Anaemia is a frequent extra-articular manifestation in rheumatoid arthritis, affecting 30-70% of the patients; presenting a negative impact on patient´s quality of life. Some of the drugs used in rheumatoid arthritis treatment improve anaemia; but little is known on the beneficial effects of the anti-rheumatic leflunomide or the anti-TNFα adalimumab, in this parameter. We investigated the incidence of anaemia in rheumatoid arthritis patients treated or not with leflunomide or adalimumab. We also assessed whether anaemia correlates with disease activity. Anaemia was present in patients who had just been diagnosed with rheumatoid arthritis and had never taken disease modifying agents or biologicals (non-specific therapy group), but not in those taking either leflunomide or adalimumab. The erythrocyte sedimentation rate was increased in patients with non-specific therapy in comparison with those taking either leflunomide or adalimumab. Anaemia correlated with increased erythrocyte sedimentation rate. We suggest that leflunomide and adalimumab may be useful in treating anaemia in patients with rheumatoid arthritis.


Subject(s)
Adalimumab/therapeutic use , Anemia/etiology , Antirheumatic Agents/therapeutic use , Arthritis, Rheumatoid/complications , Arthritis, Rheumatoid/drug therapy , Isoxazoles/therapeutic use , Adult , Female , Humans , Leflunomide , Male , Middle Aged , Treatment Outcome
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