Faced with huge demand for building public health capacity in the post-Ebola era, Africa Union has planned to establish Africa Center for Disease Control and Prevention ( Africa CDC,ACDC), with headquarters in Addis Ababa, Ethiopia, and at least 5 regional collaborating centers in each region of the continent .The strategic objectives of ACDC focus on building a continental integrated public health system and strengthening needed public health capacity .The current study analyzed the background , plans, development layout and strategy of ACDC , and provided references for China-Africa cooperation in the areas of public health and for the formulation of China global strategies of biosecurity and disease prevention and control .

Sleep deprivation, as a stress just like starvation and anoxia, can induce the physiological function changes, such as emotion disorders, cognition disorders, and immune disorders. Oxidative stress is common in cells and is closely related to aging, Alzheimer disease, Pakinson diseases, etc. Previous studies showed that sleep deprivation could induce oxidative stress via different pathways, namely, the increase of the metabolic rate and free radicals, the depress of antioxidant ability, and the indirect effects of endoplasmic reticulum stress. In this review we summarize the recent progress on the above fields.

Objective To evaluate the clinical application value of percutaneous lung biopsy by CT fluoroscopy.Methods we analysed 31 cases of percutaneous lung biopsy by CT fluoroscopy which were proved by operation or pathology,with the puncture needle produced by Cook Co..The main point are: choose the best layer,point,angle,depth,draw and obtaining at many points.Results In these 31 cases,accurate diagnosis is 29 cases,include 9 cases of adenocarcinoma,6 cases of SqCa,2 cases of small cell carcinoma,1 case of metastatic carcinoma,1 case of alveolar cell carcinoma,5 cases of TB,4 cases of infection,1 case of inflammatory pseudotumor.The diagnosis accurate rate is 93.5%.2 cases were not diagnosed accurately,2cases of pneumothoras,complication rate is 6.5%.Conclusion The percutaneous lung biopsy by CT fluoroscopy was high diagnosis accurate rate,less of complication,this is a safe,effective,simple and practical way for diagnosing lung diseases.

Flat colon lesions, which include superficial colon tumor and depressed colon tumor, have close relationship with colon cancers. The main type of flat colon tumor is laterally spreading tumor (LST) while the main type of depressed tumor is depressed early colon cancer (IIc type). Little has been reported about the flat colon tumor because it is difficult to be detected and has not yet been broadly recognized by clinicians. Recently, clinicians with the Nanfang Hospital have innovated some novel colonoscopic approaches to improve the diagnosis and treatment of flat colon tumor and accumalate experiences in this regard. Their conclusions are: 1. Improvement in recognizing the physical characteristics of the lesion and the application of chromoscopic colonoscopy are the key points to reveal and identify the flat colon tumors. 2. The best theraputic methods for flat colon lesions are endoscopic mucosal resection and piecemeal endoscopic mucosal resection.

Sleep deprivation, as a stress just like starvation and anoxia, can induce the physiological function changes, such as emotion disorders, cognition disorders, and immune disorders. Oxidative stress is common in cells and is closely related to aging, Alzheimer disease, Pakinson diseases, etc. Previous studies showed that sleep deprivation could induce oxidative stress via different pathways, namely, the increase of the metabolic rate and free radicals, the depress of antioxidant ability, and the indirect effects of endoplasmic reticulum stress. In this review we summarize the recent progress on the above fields.

Postoperative atrial fibrillation (POAF) is the most common complication after cardiac surgery, which leads to hemodynamics disorder, prolongs hospitalization and increases mortality. The underlying mechanisms behind POAF are associated with cardiomyocyte injury, sympathetic activation and inflammation. The prediction of POAF is based on correlated index from pre-, intra-and post-surgery. POAF can be treated by rhythm and heart rate control as well as and antithrombotic therapy.

Objective To investigate the effects of Modifded DaHuang ZheChong Pill on T lymphocyte subpopulation of S180 tumor-bearing mice.Methods The mice were built to the S180 sarcoma model.The experimental animals were divided into 5 groups:High-dose Modifded DaHuang ZheChong Pill group.middle-dose Modifded DaHuang ZheChong Pill group,low-dose Modifded DaHuang ZheChong Pill group,model group,and normal group.The proportion of the T lymphocyte subpopulation was detected by Flow Cytometer in the different experimental groups.Results Modifded DaHuang ZheChong pill could control radio of CD4/CD8,especially,in the high dosage group.Conclusion Modifded DaHuang ZheChong Pill could remit and improve the immune function in tumor-bearing mice,showing the best results in High-dose Modifded DaHuang ZheChong Pill group.

TROP2 (trophoblastic cell surface protein 2),a cell-surface glycoprotein,is named after its high expression only in trophoblast cells.Recent studies found that TROP2 protein is overexpressed in a variety of human epithelial cancers,and it is associated with the prognosis.However,the mechanism is still not clear.

In 1982, ADP-ribosylation factors (ARFs), a family of GTP-binding proteins associated with Golgi complexes, were initially recognized based on their ability to stimulate the ADP-ribosyltransferase activity of cholera toxin in vitro, and named so. In fact, this pathophysiologic activity has been useful for functionally defining members of the ARF family. However, during last decade, genetic and biochemical studies have shown the physiologic role of ARFs that also play an essential role in intracellular vesicular transport, particularly in Golgi complexes, activate phospholipase D activity as a nod of signal transduction of cells. Moreover, their more functions were revealed continuously recently. Especially, human ARF1 was found earliest, and studied profoundly in human body cell. Therefore, in this article, there is a comprehensive review about its regulators and effectors, functions and its possibilities involved in tumorigenesis, development of tumors.

Objective To review recent studies on the research advance of the relationship between RET proto-oncogene and differentiated thyroid carcinoma. Methods The literatures in recent years on the structure of RET gene and coding product,cell signal transduction,relationship between RET proto-oncogene and differentiated thyroid carcinoma were reviewed.Results RET gene encoding tyrosine kinase receptor,involving in cell signal transduction,rearrangement of RET gene was frequently seen in papillary thyroid carcinoma.Conclusion Rearrangement of RET gene was closely correlated with the occurrence and progress of differentiated thyroid carcinoma,RET gene may be considered as a new therapeutic target for differentiated thyroid carcinoma.