Calcium reduces CRC risk
As reported in the International Journal of Cancer, there is an 8% reduction in CRC risk with each 300 mg/d increase in calcium intake based on 15 studies involving 12305 patients who took 250-1900 mg of calcium/day over a 3.3-16 year follow-up period. The beneficial effect extended beyond 1000 mg/d.
Increased MMP-9 expression associated with poor prognosis in CRC
As reported in the World Journal of Surgical Oncology, the expression of MMP-9 in colon cancer tissues was increased compared to distal normal mucosa (69.1% vs. 2.9%). Increased MMP-9 expression was associated with lymph node metastasis, Duke stage, and decreased survival.
SIRT3 expression improves prognosis in gastric cancer
As reported in the World Journal of Surgery, SIRT3 expression improves the prognosis in patients with gastric cancer (n=221). Specifically, the 5-year OS was 51.2% and 39.1% in patients who do and do not express SIRT3, respectively. The 5-year DFS was 49.6% and 38.0% in patients who do and do not express SIRT3, respectively. Patients who do not express SIRT3 are characterized by increased poor cellular differentiation, increased diffuse-type Lauren’s histology, and increases scirrhous-type stromal reactions, suggesting the SIRT3 functions as a tumor suppressor.