Fat cell size and blood lactate in humans.

Twelve patients randomly selected as regards obesity were investigated. Morphological fat tissue parameters (size and number of adipose cells) were measured together with metabolic parameters in blood (K-value, fasting glucose, lactate, triglyceride, and free fatty acids). A high, positive correlation (0.86) between blood lactate and fat cell size was found. Also serum triglyceride and fat cell size showed a positive correlation (0.64). No correlations were found between fat cell number and the measured metabolic parameters.