الملخص
Objective:To apply CBL combined with PBL based on SMART (specific, measurable, attainable, relevant and time-based) principle in nursing practice teaching in radiotherapy.Methods:A total of 100 nurses who performed nursing practice in the Department of Radiotherapy in Guangdong Provincial Hospital of Traditional Chinese Medicine from May 2016 to May 2020 were selected as the research objects. They were divided into a control group and a study group according to their admissions, with 50 people in each group. The study group used CBL combined with PBL teaching based on SMART principle, and the control group used traditional practice teaching. After the clinical practice, the two groups were assessed on theoretical and clinical practice skills, and the two groups' teaching satisfaction and teaching effects were evaluated through seminars and questionnaire surveys. SPSS 22.0 was used for t test and chi-square test. Results:The theoretical and clinical practice performance assessment scores of the practical nurses in the study group were higher than those in the control group, with statistically significant differences ( P<0.001). The teaching satisfaction rate of the practice nurses in the control group was 62.00% (31/50), and that of the practice nurses in the study group was 96.00% (48/50), with significant differences ( P<0.001). In terms of improving independent learning ability, information acquisition and problem analysis ability, improving clinical thinking ability, mobilizing learning enthusiasm, enhancing teamwork ability, nurse-patient communication ability, and recognition of innovation ability, the teaching satisfaction of the research group was higher than that of the control group. Conclusion:The application of SMART principle in teaching has the advantages of clear goals and quantifiable evaluation. The combination of CBL and PBL based on SMART principle can help to improve the mastery of theoretical and practical skills of radiotherapy practice nurses, and achieve satisfactory teaching results.
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As one of the most lethal diseases, pancreatic cancer shows a dismal overall prognosis and high resistance to most treatment modalities. Furthermore, pancreatic cancer escapes early detection during the curable period because early symptoms rarely emerge and specific markers for this disease have not been found. Although combinations of new drugs, multimodal therapies, and adjuvants prolong survival, most patients still relapse after surgery and eventually die. Consequently, the search for more effective treatments for pancreatic cancer is highly relevant and justified. As a newly re-discovered mediator of gasotransmission, hydrogen sulfide (H
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Aim To investigate metabolomic profiles of acute myocardial ischemia (AMI) in rat plasma and explore the intervention effects and its mechanism of leonurine using a metabolomics approach based on nuclear magnetic resonance (NMR).Methods The plasma metabolomic characteristics in rats of sham group,AMI model group,and leonurine-treated group were detected by 1H NMR,and the different metabolites between AMI group and sham group or leonurine-treated group were analyzed by pattern recognition and multivariate data analysis.Results Orthogonal partial least squares discriminant analysis (OPLS-DA) demonstrated that six metabolites related to AMI were screened out,including alanine,lysine,glycine,creatine,N-acetyl glycoprotein,and O-acetyl glycoprotein and all their levels were elevated in AMI group compared to sham group.Treatment of leonurine decreased the levels of alanine,lysine,and glycine,and increased the levels of choline,phosphocholine,and scyllo-inositol compared with the model group.Conclusions Leonurine can improve amino acid metabolism disorder under AMI conditions and enhance the function of choline and inositol pathway,which may explain its cardioprotective effect.The developed metabolomics approach in this study is a powerful tool for the investigation of the cardioprotective effect of leonurine and provide a new insight to understand its pharmacological mechanism.
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Aim To evaluate the endothelial dysfunction level of different arteries at different stages of SHR,and the recovery after administration.Methods SHR model was used,captopril(3.375 g·kg~(-1)·d~(-1)) was administered from week 7 to week 24 and the effects were observed continuously until 8 weeks post treatment.Pathological changes of aorta,mesenteric and apex cordis arteries were examined at the time points of 6,18,24,32 wk,and the endothelial-dependent relaxation of the former two preparations were tested by acetylcholine(ACh)(n=6).Results There were pathological changes in the thoracic aorta,mesenteric artery and arteriole at 18 wk,and aggravated along the age.The thoracic aorta demonstrated the most severe pathological changes appearing endothelial cells ablated and tunica media thickening.The significant decline of endothelium-dependent relaxation in aorta,and mesenteric arteries of SHR reflected an aging dependent change of vascular function with the most severe situation in the aorta(P=0.10,18 wk,P<0.01 24,32 wk);captopril increased the aorta vasodilatation of SHR at 18 wk time point,without the effect in mesenteric artery(P<0.05 vs SHR).Conclusions During the progress of SHR,endothelial damages have been observed in all three kinds of vasculatures together with the reduced endothelial-dependent relaxation.The aorta presents earlier and deeper damage than middle and small size vessels,and is sensitive towards the antihypertensive therapy such as the angiotensin converting enzyme inhibitor.
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The‘prevention and early treatment of diseases’conception as‘Huangdi Neijing’suggested,is the highest academic realm among the Chinese medical theory,it flows through the entire process of Chinese medical theory and diseases prevention.Four aspects of the prevention conception manifested in the process of Chinese medical prevention of diseases are: Taking preventive measures before confirmed diagnosis(health cultivation),impeding diffusion after confirmed diagnosis, deterring diffusion from deterioration,and restraining deterioration from being malignant.The malignant causal chain conversion of the coexistence of asthenia and sthenia is considered as the inducing links of critical illness’occurrence,evolution and transformation.Therefore,to intercept the malignant causal chain conversion comes to the key technique of Chinese medical remedy for critical illness.The‘prevention and early treatment of diseases’conception must impenetrate the versal process of treating critical illness.The overall clue and method of Chinese medical remedy for critical illness is to identify and grasp the vital contradiction and each respect of the malignant causal chain conversion which concurs with the evolution of the critical illness,simultaneously utilize the method which combined the prevention in etiology and pathogenesis with the remedy in etiology and pathogenesis,then actuate the pathologically changed organism to extricate from critical conditions at the first opportunity, finalizing with convalescence and recuperation thereafter.