Objective To summarize the important role of myeloid differentiation factor 88 （MyD88） in toll like receptor （TLR） signaling pathway， and to summarize the relationship between MyD88 and relative diseases， and its potential application value. Methods Domestic and international publications online involving the role of MyD88 in TLR signaling pathway and the influence of MyD88 in some kinds of diseases in recent years were collected and reviewed. Results MyD88 was an important adapter protein， and played a connecting role in the TLR signaling pathway. It was the bottle neck of TLR signaling pathway， and could lead to the activation of many transcription factor to initiate innate immune response. It was also related to a variety of diseases. Conclusions MyD88 is the key adapter protein in TLR signaling pathway. It plays an important role in innate immunity， acquired immunity， and a variety of diseases， so it is a potential therapeutic target.
Modern medical education faces multiple challenges, and there is a gap between the social needs and the methods of cultivating medical talents. The current undergraduate education in clinical medicine is subject centered, and the traditional model is difficult to cultivate students’ clinical abilities, practical skills, and research thinking effectively. Therefore, West China Hospital/West China School of Medicine of Sichuan University has proposed a new education model of “Four-Early and Three-Entry”, aiming to cultivate students’ professional ethics, clinical abilities, and scientific research innovation abilities through early clinical practice, scientific research participation, and social integration. This article will introduce the practice and preliminary results of the “Four-Early and Three-Entry” model, aiming to provide effective ways to improve the quality of medical undergraduate education and cultivate more comprehensive medical professionals.
Objective To investigate the role of peroxisome proliferator activated receptor α （PPARα） in the pathogenesis of colorectal cancer. Method The literatures about PPARα and the pathogenesis of colorectal cancer were reviewed and analyzed. Result The relationships of PPARα to the proliferation， apoptosis， and differentiation of colorectal cancer cells in the pathogenesis of colorectal cancer were controversial. Conclusions PPARα might be involved in the regulation of proliferation， differentiation， apoptosis of colorectal cancer cells， but the pathogenesis and the up- and down-stream signal pathways are not elucidated. In additional， PPARα might partly be involved in the mechanism of drug resistance of chemotherapy drugs for colorectal cancer， but the role is not very clear yet. So more research works need to be done about the relationship of PPARα to pathogenesis of colorectal cancer.
During the coronavirus disease 2019 (COVID-19) epidemics, universities take responsibility for the health of their students and epidemic control. Our urgent recommendation focuses on four key questions of emergency management in universities following rigorous evidence-based approaches and provides timely suggestions to university managers, academic faculties and student affairs managers. We recommend universities during the COVID-19 epidemics should: 1) suspend offline lectures; 2) provide proper health education on the disease; 3) encourage face masks, however oppose using N95 masks on the campus; 4) encourage hand hygiene and provide sanitizing products on the campus.