IGF-1 Accelerates Cell Aging by Inhibiting POLD1 Expression.

Objective: The individual cascades of the insulin-like growth factor-1 (IGF-1) signaling pathway and the molecular mechanism of aging have not been fully clarified. In the current study, we explored the effect of DNA polymerase delta 1 (POLD1) on the IGF-1 signaling pathway in cell aging.

Methods: First, we analyzed the relationship between IGF-1 and POLD1 expression in aging.

Prognostic value of magnetic resonance imaging in patients with clinically isolated syndrome conversion to multiple sclerosis: a meta-analysis.

Background: Numerous studies have investigated the associations of brain or spinal cord MRI with the risk of developing Multiple Sclerosis (MS) in people with Clinically Isolated Syndrome (CIS), however, the findings are uncertain. Therefore, we performed a meta-analysis based on 24 publications to comprehensively evaluate such associations.

Materials And Methods: The databases of EMBASE and MEDLINE (January 1980-August 2011) were searched electronically for all relevant studies.