Evaluate the collective function of references cited together in a given text segment.
Classify their combined role into one of the following categories: 'method', 'background', or 'result'.

Text:A reduction in TNF- and IL-1 has been associated with weight and fat reduction, as well as with improved insulin sensitivity [3] and thus, our current results are also in conformity with a previous report in which we showed that the same RE reduced body weight and improved serum lipids and insulin in Le rats [13].
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