Arch Med Sci
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It is essential to predict the survival status of patients based on their prognosis. This can assist physicians in evaluating treatment decisions. Random forest is an excellent machine learning algorithm even without any modification. We propose a new random forest weighting method and apply it to the gastric cancer patient data from the Surveillance, Epidemiology, and End Results (SEER) program. We evaluated the generalization ability of this weighted random forest algorithm on 10 public medical datasets. Furthermore, for the same weighting mode, the difference between using out-of-bag (OOB) data and all training sets as the weighting basis is explored. ⋯ Compared with the original random forest, the weighted random forest model shows a significant improvement in performance, and the effect of using all training data as the weighting basis is better than using OOB data.
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Thyroid cancer is an important disease that threatens the health of humans. Ginsenoside Rh2 is known as an anticancer molecule; however, its function in thyroid cancer cells has not been reported. In the present study, we identified that Rh2 treatment of the thyroid cancer cell line K1 inhibited cell migration and proliferation. ⋯ Our analyses identified Rh2 and miR-524-5p action on thyroid cancer cell migration and proliferation as well as the linkage between Rh2 and miR-524-5p in thyroid cancer cell development.
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The aim of our study was to evaluate testicular growth and risk of atrophy at different lengths of time from the 2SLF-SO in boys with intra-abdominal cryptorchidism. ⋯ Two-stage laparoscopic Fowler-Stevens operation proved to be an effective procedure for the treatment of intra-abdominal testicles. The undescended testis had a chance to grow and to equalize with the healthy testis after this procedure. The incidence of testicular atrophy was low.
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The detection in mild cognitive impairment (MCI) of metabolic alterations suggestive of depression and/or of evolution to dementia. ⋯ In MCI FDG-PET/CT abnormality patterns suggest the presence of depression or the evolution to dementia.
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Elevated hemoglobin (Hb) A2 is an important diagnostic marker for β-thalassemia carriers. However, diagnosis of cases with borderline Hb A2 may be problematic. We described the molecular characteristics found in a large cohort of Thai subjects with borderline Hb A2. ⋯ A large proportion of subjects with borderline Hb A2 are not β-thalassemia carriers and for those with β-thalassemia, only mild β+-thalassemia mutations were detected. Evaluation of the patients using Hb A2, Hb F and MCV values will help in selecting cases for further molecular analysis. The results should explain the unusual phenotype of the cases and facilitate a thalassemia screening program in the region.