Objective To effectively develop medical instruments selection of hospital integration operating room.Methods The instruments selection was carried out by the purchasing management of medical instrument item.Results Combination of actual cases,the principles of medical instruments selection of hospital integration operating room and the system of item purchase management were given.Conclusion The methods of medical instruments selection of hospital integration operating room can be taken.

The nonstandard phenomenon of national military compiled version and some main question of approval work are summarized briefly, and then including and analyzing the season of them, which can improve the authorized standard and approval work quality, enhance the argumentation on standard of approve and initiatal a project, strengthen authorized work management and develop management tracking and so on.

Objective To study the mutation of STK11 gene in a Chinese family and a sporadic patient with Peutz-Jeghers syndrome (PJS),and to provide a basis for genetic diagnosis and counseling.Methods One sporadic patient and two patients from a family with PJS were collected,all of whom had typical mucosal pigmentation and gastrointestinal polyposis.Blood samples were obtained from the two patients and six unaffected relatives in this family,the sporadic patient,and 100 healthy controls.DNA was extracted,and PCR was performed to amplify nine exons and their adjacent introns in the STK11 gene followed by direct sequencing.The sequencing results were aligned to the published sequence of STK11 gene from Genbank.Results No mutation was found in the STK11 gene of any of the patients,unaffected relatives,or healthy controls.Conclusions Genetic heterogeneity exists in Peutz-Jeghers syndrome,hinting that there may be other causative genes or sites for this entity.

Objective To study the changes of mRNA expression of heat shock protein 70 (HSP70) in the rat brain exposed to repeated +Gz. Method The mRNA expression levels of HSP70 in rat brain were measured by semi-quantitative reverse transcription polymerase chain reaction (RT-PCR). Result The HSP70 mRNA expression levels in rat brains taken 30 min and 6 h after repeated +Gz exposures were significantly higher than those in control group, while the difference between the levels of control group and those of experimental rat brains taken 24 h after +Gz exposure was not significant. Conclusion It is suggested that HSP70 mRNA expression in rat brain can be induced by repeated +Gz exposures and the increased HSP70 mRNA expression may play an important role in self-protection against brain damage induced by+Gz exposures.

Cow′s milk protein allergy (CMPA) is one of the most common presentations of food allergy seen in early childhood.It is an abnormal immune response caused by cow′s milk protein.CMPA can be clinically subdivided into either immediate-onset IgE mediated or delayed onset non-IgE mediated, or both.At present, concerns regarding the early and timely diagnosis of CMPA have been high-lighted over the years and there are many expert consensus on CMPA in China, but these consensus did not distinguish IgE mediated or non-IgE mediated CMPA.In view of the obvious clinical differences between the two type of CMPA and non-IgE mediated CMPA is more common in infancy, experts focus on pediatric gastroenterology, allergy/immunology, dermatology, nutrition and child healthcare convened by the Allergy Prevention and Control Professional Committee of Chinese Preventive Medicine Association present this guideline to help practitioners in primary care settings to early recognize and make suitable management of non-IgE mediated CMPA in China.The guideline incorporates the cutting-edge international guidance and the actual situation of Chinese children describing in detail the types, clinical features, diagnosis and nutritional intervention of non-IgE mediated CMPA.There are 42 recommendations in 7 categories in total referring to the common questions related to non-IgE mediated CMPA.

There is a shared problem in current optical imaging technologies of how to obtain the optical parameters of biological tissues with complex profiles. In this work, an imaging system for obtaining the optical parameters of biological tissues with complex profile was presented. Firstly, Fourier transformation profilometry was used for obtaining the profile information of biological tissues, and then the difference of incident light intensity at different positions on biological tissue surface was corrected with the laws of illumination, and lastly the optical parameters of biological tissues were achieved with the spatial frequency domain imaging technique. Experimental results indicated the proposed imaging system could obtain the profile information and the optical parameters of biological tissues accurately and quickly. For the slab phantoms with height variation less than 30 mm and angle variation less than 40º, the maximum relative errors of the profile uncorrected optical parameters were 46.27% and 72.18%, while the maximum relative errors of the profile corrected optical parameters were 6.89% and 10.26%. Imaging experiments of a face-like phantom and a human's prefrontal lobe were performed respectively, which demonstrated the proposed imaging system possesses clinical application value for the achievement of the optical parameters of biological tissues with complex profiles. Besides, the proposed profile corrected method can be used to combine with the current optical imaging technologies to reduce the influence of the profile information of biological tissues on imaging quality.
Diagnostic Imaging ; Humans ; Light ; Optical Imaging ; Phantoms, Imaging