Can an increased level of circulating IL-8 be a predictor of human longevity?
It seems possible that an association of an increased serum level of IL-8 and a low level of IL-6 is related to longevity.
Insulin secretion in response to GLP-1 is proportional to insulin resistance in healthy subjects. However, there is considerable variability in the sensitivity of the β-cell to GLP-1 that is independent of insulin sensitivity.