ABSTRACT
Purpose@#Most lung adenocarcinoma (LUAD) patients are diagnosed at the advanced stage and have poor prognosis. DNA methylation plays an important role in the prognosis prediction of cancers. The objective of this study was to identify new DNA methylation sites as biomarkers for LUAD prognosis. @*Materials and Methods@#We downloaded DNA methylation data from The Cancer Genome Atlas data portal. Cox proportional hazard regression model and random survival forest algorithm were applied to identify the DNA-methylation sites. Methylation of sites were validated in the Gene Expression Omnibus cohorts. Function annotation were done to explore the biological function of DNA methylated sites signature. @*Results@#Six DNA methylation sites were identified as prognosis signature. The signature yielded acceptable discrimination between the high-risk group and low-risk group. The discrimination effect of this DNA methylation signature for the OS was obvious, with a median OS of 21.89 months vs. 17.74 months for high-risk vs. low-risk groups. This prognostic prediction model was validated by the test group and GEO dataset. The predictive survival value was higher for the prognostic prediction model than that for the tumor node metastasis stage. Adjuvant hemotherapy could not affect the prediction of the signature. Functional analysis indicated that these signature genes were involved in protein binding and cytoplasm. @*Conclusion@#We identified the prognostic signature for LUAD by combining six DNA methylation sites. This could service as potential robust and specificity signature in the prognosis prediction of LUAD.
ABSTRACT
This study was conducted to assess the effects of over ten years of antihyper-uricemic follow-up therapy on 65 patients out of 118 cases of primary gout. It was found that reduced tophaceous deposition correlated with normalization of the serum uric acid concentration. The patients with lower mean uric acid concentrations were more likely to have a reduction in tophi. There was a lack of correlation between mean serum uric acid concentrations and radiographic changes of gout. Although treatment allowed better control of the disease in general, serum uric acid concentration alone may not provide an effective means of monitoring the progression of the disease. In this series,antihyperuricemic agents were generally well tolerated. Gastrointestinal upset was seen in 13 of the 65 cases (20%),mild leukopenia in 6 patients. skin rash in 2 and herpes simplex in 1. No patient was withdrawn from the therapy owing to the untoward side effects.