Ankylosing spondylitis (AS) was first identified in the late 17th century. 250 years later,
inflammatory spine disease was recognized to be one of the patterns of psoriatic arthritis …

Psoriasis and Psoriatic Arthritis (PsA) are chronic inflammatory diseases that have a major
impact on health. The prevalence and incidence estimates of these two closely related …

Background The Disease Activity Index for Psoriatic Arthritis (DAPSA) is a valid and
discriminative tool. Definitions of disease activity states and therapeutic response are still …

Background and objectives Instruments for measuring disease activity in psoriatic arthritis
(PsA) are not yet firmly established, and most of the currently employed ones have been …

Summary Background Because psoriatic arthritis (PsA) usually develops years after the first
manifestation of skin symptoms, in many cases the initial diagnosis of PsA depends on the …

OBJECTIVE: The induction or exacerbation of psoriasis in patients treated with tumor
necrosis factor (TNF) antagonists is a well-established phenomenon. The goals of this …

Psoriatic arthritis is an inflammatory rheumatic disorder of unknown etiology occurring in
patients with psoriasis. The Classification Criteria for Psoriatic Arthritis study group has …

Innate lymphoid cells (ILC) have a high potency for cytokine production independent of
specific Ag stimulation. Imbalance of ILC subsets may influence cytokine production in …

The definition of axial disease in psoriatic arthritis has varied from isolated unilateral grade 2
sacroiliitis to criteria similar to those used for ankylosing spondylitis. Depending on the …

In this review we provide reasons to use joint specific composite measures of disease
activity for psoriatic arthritis (PsA) rather than composite scores that combine several …