Positive Association Between Serum Insulin-Like Growth Factor-1 and Cognition in Patients with Cerebral Small Vessel Disease.

Cognitive impairment is one of the main complications of cerebral small vessel disease (CSVD). Serum insulin-like growth factor-1 (IGF-1) might serve as a marker for the risk of cognitive decline in patients with CSVD. We investigated the association of IGF-1 with the development of cognitive impairment in patients with CSVD. We included 216 patients with CVSD (mean age, 67.57 ± 8.53 years; 31.9% female). We compared 117 (54.2%) patients who developed cognitive impairment with 99 (45.8%) patients without cognitive impairment. Patients who developed cognitive impairment had significantly lower levels of IGF-I (p < 0 .001), suggesting that altered IGF-1 signaling may be a risk factor for cognitive decline in patients with CSVD.