SNHG5 and gastric cancer: For instance, the expression of lncRNA SNHG5 was significantly downregulated in the serum and tissues of GC patients before operation as well as those with poor prognosis, and its downregulation was closely associated with drinking history and Tumor-Node-Metastasis (TNM) stages in these patients, indicating that SNHG5 is a survival predictor of short-term adverse events in GC patients (155).