ITLN1 and myeloid sarcoma: The aims of this study are: 1) to compare circulating levels of omentin and vaspin, which are recently identified adipokines, between MS patients and healthy controls; 2) to correlate these adipokine levels with bone mineral density (BMD) and bone-related mediators and cytokines in order to determine whether circulating levels of these novel cytokines may be related to bone health in MS patients.