Objective To investigate the application value of combined detection of four diarrhea viral antigens (rotavirus ,enteric adenovirus ,norovirus ,astrovirus) in suspected food poisoning .Methods One hundred and seventy-six stool samples from the pa-tients with acute phase of suspected food poisoning were collected and performed the 4-item viral antigen detection by adopting the immunofluorescence chromatography ,and at the same time the culture and identification of pathogenic bacteria at the same time were performed .Results Among 176 stool samples of patients with suspected food poisoning ,one strain of Shigella was detected and other pathogens were not detected out ;the detection rates of four viral antigens of rotavirus ,enteric adenovirus ,norovirus and astrovirus were 9 .66% ,1 .70% ,14 .77% and 2 .84% respectively .Conclusion The combined detection of four diarrhea viral anti-gens can definite viral pathogens ,timely identify and early warn food-borne disease outbreaks .

Preliminary research and partial satellite carrying experiment were firstly carried out,so as to research the technique of environmental control and life support system(ECLSS)of Chinese manned spacecraft.Environmental control and life support sub-system of "Shenzhou" spacecraft were developed subsequently,and the technique of physical/chemical regenerative ECLSS and controlled ecological life support system(CELSS)were also researched gradually.This paper introduced the research and development of ECLSS of Chinese manned spacecraft,and discussed the technical character of ECLSS.

ObjectiveTo discuss the central modulating mechanisms while acupuncturing the Stomach 36[ST36(Zusanli)]by brain functional imaging with positron emission tomography (PET).MethodsPET imaging of whole brain was performed in a group of six healthy subjects during two stimulation paradigms: pseudo acupuncture and real acupuncture at acupoint ST36(Zusanli). The data on cerebral glycometabolism,obtained by using PET,was analyzed by using statistical parametric mapping (SPM).ResultsThere was certain increase of glycometabolism in ipsilateral hypothalamus,back of medulla oblongata;bilateral insular lobe; contralateral paracentral lobule,superior part of precentral and postcentral gyrus,opercular part of frontal and temporal lobe,middle part of cingulate gyrus,head of caudate nucleus,middle part of the back of midbrain and pons,and deep part of cerebellum,whereas decrease in ipsilateral superior part of precentral and postcentral gyrus and lateral part of ipsilateral anterior cerebellar lobe,while acupuncturing at acupoint ST36(Zusanli on the right leg).ConclusionsThe central modulating mechanisms of acupuncturing ST36 are realized by neural and neuroendocrine network modulation mechanisms of vegetative nerve center in cortex and subcortex.

Objective:To investigate the genetic risk factors and prognosis of 190 patients with myelodysplastic syndrome(MDS). Methods:The clinical data of 190 patients with MDS admitted to the Department of Hematology,The First Affiliated Hospital of Chongqing Medical University from January 2015 to October 2020 were analyzed retrospectively,and the genetic background and survival curve of the patients were also analyzed. Results:MDS patients with higher risk according to International Prognostic Score System(IPSS)stratification at the time of initial diagnosis had more frequent and complex types of gene mutation and chromosomal abnormalities,indicating poor prognosis.The choice of treatment is associated with the prognosis of MDS patients with intermediate risk(IPSS stratification),and the relative risk of the overall survival rate of patients treated with hypomethylating agents is higher than that of patients on concomitant medication. Conclusion:MDS patients with higher-risk(IPSS stratification)have more complex genetic risk factors and lower survival rate than those with lower-risk(IPSS stratification).MDS patients with multiple genetic risk factors have a poor prognosis,and the type of gene mutation is a predictor of prognosis.