Trends in incidence of adult-onset psoriasis over three decades: a population-based study.

Background: Incidence studies of psoriasis are rare, mainly due to lack of established epidemiological criteria and the variable disease course. The objective of this study is to determine time trends in incidence and survival of psoriasis patients over three decades.

Methods: We identified a population-based incidence cohort of 1633 subjects aged > or = 18 years first diagnosed with psoriasis between January 1, 1970 and January 1, 2000.

Effects of tumor necrosis factor-alpha blockade on metabolic syndrome components in psoriasis and psoriatic arthritis and additional lessons learned from rheumatoid arthritis.

Psoriasis (PsO) and psoriatic arthritis (PsA) are chronic T cell-mediated inflammatory diseases that manifest not only in the skin and joints but also in the form of cardiometabolic disturbances, which include insulin resistance, dyslipidemia, and obesity. Thus, PsO and PsA patients are predisposed to metabolic syndrome (MetS), diabetes, and cardiovascular disease. In recent years, the introduction of targeted therapy in the form of tumor necrosis factor-alpha (TNF-alpha) antagonists, such as infliximab, etanercept, and adalimumab has been an important and effective addition to the treatment armamentarium for PsO and PsA.

Structural-functional relationships of TNF-alpha antagonists: next steps.

The balance between effective tumor necrosis factor (TNF) blockade to control aggressive autoimmune disease states and adequate remaining TNF activity to confer immunoprotection against infections such as tuberculosis is an important and complex issue. An increased scientific understanding of how each of the TNF antagonist agents affects the complex interactions of the inflammation cascade and apoptosis, and whether the effects are modulatory or destructive, is needed. The data presented in this supplement highlight the need for further research into these key areas, and illustrate our current understanding of the mode of action of TNF blockers as only the tip of the iceberg.

Heart disease in psoriasis.

Psoriasis has been traditionally viewed as an inflammatory skin disorder of unknown origin. Recent advances in the immunopathogenesis and genetics of psoriasis have broadened our understanding of psoriasis. Psoriasis is now considered a systemic inflammatory condition analogous to other inflammatory immune disorders.