• Ramin Ghazizadeh, Mamiko Tosa, and Mohammad Ghazizadeh.
• Academic Dermatology and Skin Cancer Institute, East Washington Street, Chicago, Illinois, USA.
• Am. J. Med. Sci. 2011 May 1; 341 (5): 394-8.

AbstractPsoriasis is associated with an increased risk of cardiovascular disease, a principal cause of which is atherosclerosis caused by hyperlipidemia. However, it is not known whether treatment of hyperlipidemia in patients with psoriasis lead to clinical improvement in psoriasis condition. In this study, the authors summarize the existing literature relevant to this inquiry. They also describe the potential pathways believed to link psoriasis with atherosclerosis and the role of hyperlipidemia therapy in this setting. A few studies indicated clinical improvement in psoriasis with treatment of associated hyperlipidemia. Some studies showed that a low-fat diet improved psoriasis. Others indicated a decreased risk of psoriasis associated with intake of cholesterol-lowering drugs such as "statins." Treatment with statins increased lactate dehydrogenase level and diminished Psoriasis Area and Severity Index score, ie, reduced cutaneous lesion in psoriasis. Beneficial effects of statin therapy on psoriasis included downregulation of lymphocyte function-associated antigen-1, inhibition of leukocyte endothelial adhesion, extravasation and natural killer cell activity, inhibition of proinflammatory cytokines such as tumor necrosis factor-alpha and interleukin 1 and 6, lowering of C-reactive protein, promotion of a T(H)1 to T(H)2 cells and inhibition of T(H)1 cytokine receptors on T cells, leading to inhibition of activation of lymphocytes and infiltration into the inflammation sites. Taken together, current literature indicates clinical improvement in psoriasis condition with treatment of associated hyperlipidemia, particularly with statins of which the mechanisms could be attributed to immunomodulatory and anti-inflammatory effects.

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