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:Interestingly, expression of proinflammatory cytokines (tumor necrosis factor-a and macrophage inflammatory protein 1a) and macrophage markers (CD68 and EMR1) were not significantly changed between HF-PP and HF-CP despite the reduced adiposity and improved glucose tolerance, whereas they were significantly increased in HF-CP compared with LF-V consistent with other previous findings (28,29,46,47).
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