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In order to strengthen the education for university students’all-round devel-opment,and to improve the quality of teaching,Shantou University,by making good use of higher education resources,built a digital campus consisting of virtual classrooms based on advantage of computer and Internet network environment,and plenty of general education programs were carried out.The teaching practice showed that virtual classroom,as a network platform,played an important role in general education programs.
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The article aimed to explore the implementation of systemic integrated new clinical medical teaching mode and the functions of basic medicine specialty module teaching on innovative talents training.It showed that the implementation of systemic integrated new medical teaching mode was facilitated to build up a platform for the training of innovative talents.And the application of the integrated method to teaching was beneficial to develop the creative thinking of medical students.
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OBJECTIVE: To summarize the development of researches on sildenafil for treating cardiovascular patients with erectile dysfunction, so as to explore the safety of applying sildenafil and efficacy of treating related cardiovascular diseases.DATA SOURCES: The relevant articles to sildenafil between October 1999 and February 2006 were computer-searched in PubMed databasewith the key words of "sildenafil, erectile dysfunction, sexuality, cardiovascular disease" in English. Meanwhile, Medscape database was scanned with computer to identify relevant articles with key words of "sildenafil, cardiovascular disease". STUDY SELECTION: After the primary searching, literatures on relationship between sildenafil and cardiovascular disease were searched in full-text, while articles about erectile dysfunction but had nothing to do with cardiovascular disease were excluded. The repetitive experimental studies were also deleted. DATA EXTRACTION: A total of 55 articles were collected, and 22 of them were in accordance with the inclusion criteria and their full-texts were carefully looked through. DATA SYNTHESIS: The selected data were classified according to the relationship between erectile dysfunction and cardiovascular disease, effect of sildenafil on erectile dysfunction of patients with heart disease and rec ommendation of the Princeton conference. CONCLUSION: It is demonstrated in many literatures that the potential risk of sildenafil triggering cardiovascular disease is relatively small. Cardiac patients need not promote huge concerns when resorting to sildenafil for erectile dysfunction treatment. However, the protective cardiac effects of sildenafil should be further investigated.
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Teachers are principal parts in the innovation and implementation of teaching.Along with the deepening transformation of new medical teaching mode,higher demands have been set for the construction of teachership and for the education and training of teachers.The article gives an analysis on several issues that should be given attention to in the teacher training.
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Germ cells exist in an environment created by Sertoli cells. The differentiation of germ cells from spermatogonia to sperm in the seminiferous epithelium is controlled by many factors such as hormones, growth factors, temperature and interaction with Sertoli cells. Paracrine signaling between these intimately associated cells also regulates the process of germ cell death. Sertoli cells' products play an important role in the process of germ cell differentiation in the testis, in which both the spontaneous and induced germ cell apoptosis often occur.
Assuntos
Animais , Humanos , Masculino , Ratos , Apoptose , Fisiologia , Células de Sertoli , Fisiologia , Espermatozoides , FisiologiaRESUMO
The basic and clinical teaching activities are disconnected in traditional teaching mode of medical education,which has a negative influence on medical education quality.Advantages of system-based integrated teaching mode in promoting connection and transition between the basic and clinical medical teaching are discussed in this paper. Some problems in teaching material and administration may arise during the executive process of system-based integrated teaching mode.
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Aim To study the effect of Semen Cuscutae flavonoids on oxidative damage and apoptosis of rat seminiferous tubule cells. Methods Detecting apoptosis cells was performed by TUNEL methods and oxidative damage index such as MDA, T-AOC and ROS. Results Semen Cuscutae flavonoids could inhibit testis cells oxidative damage and apoptosis, the effect is dose dependent and the most significantly in 500 mg?L -1. Conclusion Semen Cuscutae flavonoids are effective antioxidants, which can inhibit apoptosis and oxidation of testis cells.
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Teachers play a major role in the reform of the teaching mode in the university.The authority of university and department of teaching administration should fully communicate with teachers and show respect for teachers' opinions about the plan of reform.The success of the new teaching mode is dependent mainly on the support of teachers.
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Semen Cuscutae is a kidney-essence invigorating Chinese drug which is widely used in the clinic. In this study, the effects of the flavonoids extracted from Semen Cuscutae (FSC) on the function of the hypothalamus-pituitary-gonads axis in animals was investigated. The results showed that FSC can increase the weight of uterus and promoted the cornification of vaginal epithelial cells in bilateral ovariectomized mice, which suggested that FSC may have estrogen-like activity. In normal female rats, it increased the weight of pituitary, ovary and uterus, but did not increase plasma luteinizing hormone (LH) level. The binding capacity of ovary to 125 I-HCG/LH receptor was significantly elevated the reactivity of luteinizing-releasing hormone (LRH) was increased, and the LRH-induced LH secretion was enhanced in ovariectomized rats. In immature male mice, FSC increased the weight of epididymis and testis, and stimulated HCG-induced secretion of testosterone in short-term cultured rat Leydig cells. It is suggested that FSC can improve the functions of reproductive and endocrine system.
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The professional spirit glory was reflected in the thought and behavior of the great and famous doctors.They showed fully respect and love to the life.They deeply understood the meaning of the profession of a doctor.They showed us excellent examples of the high professional spirit.Training of medical students' professional spirit and medical ethics relates to the value seeking of the future doctors,and it also relates to the relationship between the doctors and patients.