MiR-497-5p inhibits cell proliferation and metastasis in hepatocellular carcinoma by targeting insulin-like growth factor 1.

Background: MicroRNAs (miRNAs) play an important regulatory role in carcinogenesis and cancer progression. Aberrant expression of miR-497-5p has been reported in various human malignancies. However, the role of miR-497-5p in hepatocellular carcinoma (HCC) remains unclear.

Pri-miR-34b/c rs4938723 polymorphism is associated with a decreased risk of gastric cancer.

Previous studies have demonstrated that miR-34 family members are abnormally expressed in gastric cancer. Overexpression of the miR-34 family suppresses gastric carcinogenesis, whereas downregulation of the miR-34 family promotes tumorigenesis. p53 can bind to the promoter region of miR-34b/c, leading to an increase of miR-34b/c expression.

A let-7 KRAS rs712 polymorphism increases colorectal cancer risk.

Growing evidence has indicated that polymorphism present in the miRNA binding site of target gene can alter the ability of miRNAs to bind its target gene and modulate the development and progression of cancer. We aimed to investigate the association between let-7 KRAS rs712 polymorphism and the risk of colorectal cancer (CRC). The let-7 KRAS rs712 was analyzed in a case-control study, including 339 CRC patients and 313 age- and sex-matched controls; the relationship between the polymorphism and the clinicopathological features of CRC was also examined.

Vitamin D receptor BsmI polymorphism and osteoporosis risk: a meta-analysis from 26 studies.

Objective: Growing evidence has shown that vitamin D deficiency can cause lower bone mineral density (BMD) and an increased risk of osteoporosis. Vitamin D receptor (VDR) BsmI polymorphism (rs1544410) can affect BMD variation and circulating osteocalcin levels. To date, a wide range of epidemiological studies have been carried out to evaluate the association between VDR BsmI polymorphism and susceptibility to osteoporosis.