Research on the teaching reform of internal medicine for graduate students in colleges and universities based on the concept of OBE / 中华医学教育探索杂志

Objective:To explore the teaching reform of internal medicine graduate students based on the concept of outcomes-based education (OBE).Methods:A total of 86 graduate students who studied in the Teaching and Research Section of Internal Medicine in the First Affiliated Hospital of Xinjiang Medical University from January 2019 to August 2020 were randomly divided into control group ( n=43) and observation group ( n=43). The control group adopted traditional teaching, and the observation group adopted the teaching based on the OBE concept. The evaluation of the academic performance of the two groups of graduate students and the recognition of the teaching mode by the graduate students were compared, and the improvement of the personal ability of the graduate students was evaluated. Meanwhile, the effect of teaching satisfaction and the improvement of learning ability of the graduate students was evaluated. SPSS 22.0 was used for t-test and Chi-square test. Results:The theoretical scores, general head and neck test scores, heart test scores, lung test scores, abdominal test scores, spinal and limb nervous system test scores, operation scores and total scores of graduate students in the observation group were higher than those in the control group ( P<0.05); students in the observation group believed that the teaching could improve their learning interest, improve the self-learning ability, improve communication and expression ability, improve teamwork ability, improve understanding and memory ability, improve internal medicine thinking ability, improve generalization ability, and improve clinical practice ability. All the above aspects were higher in observation group than control group ( P<0.05); the students in the observation group had 97.67% (42/43) recognition of teaching, which was higher than 83.72% (36/43) in the control group. Conclusion:Internal medicine teaching based on the concept of OBE can improve the academic performance and enhance the personal ability of graduate students, and the students are more satisfied with this teaching method.

The detailed biological investigations about combined effects of novel polyphenolic and photo-plasmonic nanoparticles loaded graphene nanosheets on coronary endothelial cells and isolated rat aortic rings.

In this study, the effect of Polyp-Au-GO nanocomposite on VSMC proliferation, cell cycle proteins, down-regulation of mRNA in the rat was tested. Briefly, Polyp-Au-GO composite material was synthesized and characterized by UV-Vis spectra, X-ray diffraction (XRD), Raman spectroscopy, Fourier transform infrared spectroscopy (FT-IR), Scanning electron microscopy (SEM) and Transmission electron microscopy (TEM). Polyp-Au-GO composite exhibited the absorbance peak at 530 nm. XRD analysis confirmed the crystalline particle with size ranging between 16.5 and 32.6 nm. The crystallinity differences of the nanocomposite were examined by Raman spectroscopy analysis. The presence of a strong band (1500 cm-1) and the absence of other lower frequency bands confirmed that the absence of crystallinity of Polyp-Au-GO nanocomposite. The thermal properties of Polyp-Au-GO nanocomposite were determined by TGA analysis. The results revealed that 15% of its weight loss has occurred at 300 °C. Further, the growth of VSMCs was inhibited by the treatment of Polyp-Au-GO composite at 72 h. The IC50 value was registered at 0.57 µg/mL. Additionally, the Polyp-Au-GO composite arrest G1 cell cycle and down-regulated cell cycle proteins. These Polyp-Au-GO composite also reduced the extracellular ERK1/2 phosphorylation. Furthermore, Polyp-Au-GO composite inhibited TNF-R-evoked inflammatory responses. Moreover, Polyp-Au-GO composite inhibited of CEC proliferation. These results suggest that Polyp-Au-GO composite inhibits VSMC proliferation and TNF-R-mediated inflammatory responses. This study suggested the therapeutic role of Polyp-Au-GO composite in cardiovascular disease.

Individualized anticoagulation versus empirical anticoagulation therapy after cardiac valve replacement in Uygur patients: A randomized controlled trial / 中国胸心血管外科临床杂志

@#Objective    To investigate whether the individualized anticoagulation therapy based on CYP2C9 and VKORC1 gene is superior to empirical anticoagulation therapy after artificial heart valve replacement surgery in Uygur patients. Methods    From December 2012 to December 2015, 210 Uygur patients who underwent artificial heart valve replacement surgery at the First Affiliated Hospital of Xinjiang Medical University were randomly assigned to a genetic anticoagulation therapy group (group A, n=106, 41 females and 65 males, aged 44.7±10.02 years) or an empirical anticoagulation therapy group (group B, n=104, 47 females and 57 males, aged 45.62±10.01 years) according to the random number table. CYP2C9 and VKORC1 genotypes were tested in the group A and then wafarin of administration in anticoagulation therapy was recommended. Patients in the group B were treated with conventional anticoagulation. Patients in both groups were followed up for 1 month and coagulation function was regularly tested. Results    The percentage of patients with INR values of 1.8-2.5 after 4 weeks warfarin anticoagulation treatment in the group A was higher than that in the group B (47.1% vs. 32.7%, P=0.038). The rate of INR≥3.0 in the warfarin anticoagulation therapy period in the group A was lower than that in the group B (21.6% vs. 26.5%, P=0.411). The time to reach the standard INR value and the time to get maintenance dose were shorter in the group A compared with the group B (8.80±3.07 d vs.   9.26±2.09 d, P=0.031; 14.25±4.55 d vs. 15.33±1.85 d, P=0.032). Bleeding occured in one patient in the group A and three patients in the group B (P=0.293). Embolic events occured in three patients in the group A and five patients in the group B (P=0.436). Conclusion    Compared with the empirical anticoagulation, the genetic anticoagulation based on wafarin dosing model can spend less time and make more patients to reach the standard INR value. However there is no significant difference between the two groups in the ratio of INR≥3.0, bleeding and embolic events in the warfarin anticoagulation therapy.