Barely Significant

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However, mAb treatment tended to oppose age-related changes in 30 of these metabolites (22 marginally significant after FDR correction), including a reduction in the age-related rise of many glycerophospholipids, and a distinct clustering of metabolites from heart tissue in Old Con versus Old mAb-treated animals by PCA (Supplementary Fig. 5 ), resulting in a more youthful metabolomic signature in heart.
Finally, when we examined downregulation of long genes from the GRO-seq (global nuclear run-on with high-throughput sequencing) data collected from these mice, we confirmed a marginal significance in the downregulation of long genes, but upregulation of long genes was not observed in whole-cell RNA-seq data (Supplementary Fig. 4 ).