Metabolic syndrome more common in patients with psoriatic arthritis

[Caroline]

Now
Metabolic syndrome is the medical term for a combination of diabetes, high blood pressure (hypertension) and obesity. It puts you at greater risk of getting coronary heart disease, stroke and other conditions that affect the blood vessels.

So this means probably
1. Psoriasis / PsA patients are heavier… (at least than RA patients) but also on average
2. Have higher tryclicrides….(some kind of fat)

Now
Triglycerides are a type of fat (lipid) found in your blood.

When you eat, your body converts any calories it doesn't need to use right away into triglycerides. The triglycerides are stored in your fat cells. Later, hormones release triglycerides for energy between meals.

If you regularly eat more calories than you burn, particularly from high-carbohydrate foods, you may have high triglycerides (hypertriglyceridemia).

So in fact the last means that the patient is eating too much. 

Might this be a chicken and egg problem? Or is this reason more complex? 
Chicken and egg in the sense of what was first.. obesity and then psoriasis or psoriasis and then obesity. 

A complex reason for me would be… you have psoriasis in your younger years and this embarrasses you, and you start eating to compensate.

The definition of metabolic syndrome, does not really point to inflammation being the cause of the problems.