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background Drug-coated balloon (DCB) is a new technology that has emerged in recent years and has been proven to be effective and safe in the treatment of in-stent restenosis. The purpose of this article is to observe the safety and effectiveness of drug-coated balloons in patients with acute myocardial infarction. method We selected 80 patients admitted to the hospital for STEMI from January 2018 to December 2019. The subjects were randomly divided into a Yinyi (Liaoning) Biotech Bingo Drug Coated Balloon treatment group (balloon group, n  = 38) and a drug-eluting stent (DES) treatment group (stent group, n  = 42). Patients were followed up to understand the incidence of major adverse cardiovascular events (MACE) at 1 month, 6 months and 1 year after surgery. Coronary angiography was rechecked 1 year after surgery to understand the late lumen loss (LLL) in the two groups. result During the one-year follow-up, the LLL of the target lesion in the balloon group was -0.12±0.46 mm, while the target lesion in the stent group was 0.14±0.37 mm ( P  <0.05). Within 1 year, the incidence of MACE in the balloon group was 11%, while the incidence of MACE in the stent group was 12%. There was no significant difference between the two groups. in conclusion When PCI is used for STEMI, only DCB therapy is safe and effective, and has shown good clinical effects during a one-year follow-up period.

Background：Drug-coated balloon (DCB) is a new technology that has emerged in recent years, and it has been proven to be effective and safe in the treatment of restenosis in the stent. The purpose of this article is to observe the safety and effectiveness of drug-coated balloons in patients with acute myocardial infarction. Methods: A total of 80 patients who were admitted to our department due to STEMI from January 2018 to December 2019 were selected. The subjects were randomly divided into drug-coated balloon treatment group (balloon group, n=38) and drug-eluting stent (DES) treatment group (stent group, n=42). The patients were followed up for 1 year to understand the incidence of major adverse cardiovascular events (MACEs) at 1 month, 6 months and 1 year after operation. Coronary angiography was reexamined at 1 year after operation to understand the late lumen loss (LLL) of the two groups. Results: At the 1-year follow-up, the target lesion LLL in the balloon group was (−0.12±0.46) mm, while the target lesion in the stent group was (0.14±0.37) mm (P<0.05). Within 1 year, the incidence of MACEs in the balloon group was 11%, and the incidence of MACEs in the stent group was 12%. There was no significant difference between the two groups. Conclusion: DCB therapy alone is safe and effective when PCI is performed for STEMI, and it shows good clinical results during the 1-year follow-up period.

Due to its important biological function as a key negative regulator of p53, the mouse double minute 2 homologue (MDM2) gene has been extensively studied. A functional variant in the MDM2 gene promoter, single-nucleotide polymorphism 309 (SNP309) T > G (rs2279744), has been reported to cause an increase in MDM2 protein levels and impairment of p53 tumor suppressor activity, which may be associated with the development of cancer. A number of studies were performed to investigate the relationship between this SNP and endometrial cancer. But, the results remain controversial. Thus, we performed a comprehensive meta-analysis to derive a more precise estimation of this susceptibility. There were seven eligible articles with a total of 1,278 patients and 2,189 controls included in the meta-analysis. In the present study, we found significant associations under the allele contrast and recessive model. The G allele was associated with elevated risk for endometrial cancer [allele contrast OR = 1.33, 95 % confidence interval (CI) = 1.12-1.58, P(Z) = 0.0009, P(Q) = 0.02)], while the homozygous GG genotype may also increase the risk of endometrial cancer [OR = 1.88, 95 % CI = 1.40-2.52, P(Z) < 0.0001, P(Q) = 0.02]. In the subgroup analysis by ethnicity, we found similar significant results for both Caucasians [allele contrast OR = 1.41, 95 % CI = 1.04-1.92, P(Z) = 0.03, P(Q) = 0.001; recessive model OR = 1.89, 95 % CI = 1.10-3.23, P(Z) = 0.02, P(Q) = 0.002] and Asians [allele contrast OR = 1.24, 95 % CI = 1.01-1.53, P(Z) = 0.04, P(Q) = 0.86; recessive model OR = 1.75, 95 % CI = 1.24-2.45, P(Z) = 0.001, P(Q) = 0.75]. Overall, the meta-analysis demonstrated that the MDM2 SNP309 polymorphism may be associated with increased risk of endometrial cancer.

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