Pathological degree and TNM stage of PDAC patients have been demonstrated to be risk factors for prognosis based on IHC in Result 4 – Table 3, and high GLUT-1 expression was demonstrated to be associated with poor prognosis of PC in several previous studies, which means that expression of SGLT-1 has opposite survival relevance to these three factors [34–39]. This evidence concerns the gene SLC2A1 and pachyonychia congenita.