While SGCD and LRRC17 were most significantly overexpressed in young Asian patients with Luminal B and HER2+ compared to older patients with the same tumor types with a log fold change >1, SYBU was found to be overexpressed most significantly in the young patients with HER2+ only, with a log fold change >1, compared to older patients of the same tumor type. This evidence concerns the gene SGCD and neoplasm.