Effects of naproxen and sulphasalazine or methotrexate on hypothalamic-pituitary-adrenal axis activity in patients with rheumatoid arthritis.
Clin Exp Rheumatol
; 29(1): 35-42, 2011.
Article
en En
| MEDLINE
| ID: mdl-21345290
ABSTRACT
OBJECTIVES:
To study the effects of antirheumatic drugs on hypothalamic-pituitary-adrenal (HPA) axis activity in patients with rheumatoid arthritis (RA).METHODS:
Twenty patients with recent-onset active RA were studied before antirheumatic treatment, after 2 weeks of naproxen, and after 5½ months of additional treatment with sulphasalazine or methotrexate. The results before treatment were compared with those obtained in 20 age and sex-matched healthy controls (HC). Activity of the HPA-axis was assessed under basal conditions and during insulin tolerance tests (ITT). The ex-vivo production of interleukin (IL)-1ß, tumour necrosis factor-α (TNF-α) and IL-6 in whole blood samples was measured with and without stimulation by LPS.RESULTS:
At baseline, plasma ACTH and cortisol levels were not different between patients with RA and HC. The unstimulated production of IL-6 was significantly higher in RA patients than in HC. After 2 weeks of treatment with naproxen, urinary cortisol excretion decreased significantly (p=0.03), and the area under the curve for plasma cortisol during the ITT was significantly lower (p=0.015). The LPS stimulated production of IL-1ß was significantly lower compared with baseline. After 6 months, basal plasma, salivary and urinary cortisol levels, and plasma cortisol and ACTH levels during the ITT, were all unchanged in comparison to the pre-treatment period. The unstimulated ex-vivo production of IL-1ß was significantly lower than before treatment.CONCLUSIONS:
Our results suggest that the non-steroidal anti-inflammatory drug naproxen suppresses the HPA-axis in the first weeks of treatment. After 6 months, this suppressive effect is no longer present, suggesting the existence of adaptive mechanisms.
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Base de datos:
MEDLINE
Asunto principal:
Sistema Hipófiso-Suprarrenal
/
Artritis Reumatoide
/
Sulfasalazina
/
Antiinflamatorios no Esteroideos
/
Metotrexato
/
Naproxeno
/
Sistema Hipotálamo-Hipofisario
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
Clin Exp Rheumatol
Año:
2011
Tipo del documento:
Article