mTOR signaling pathway is a highly conserved intracellular signaling pathway,which partici-pates in several signaling pathways, such as PI3K/AKT/mTOR, AKT/TSC1-TSC2/Rheb/mTOR, LKB1-AMPK-TSC-mTOR and FGF-10-Spry2-mTORC1-STAT3/HIF-1α-VEGF-A. mTOR signaling implicate in the regulation of the development of lung and many pulmonary diseases in many aspects,may be connected to bron-chopulmonary dysplasia. Bronchopulmonary dysplasia is one of the very common chronic lung diseases in pre-term,physical and chemical factors have been shown to induce acute lung injury, aberrant wound healing and lung fibrosis in the immature lung. This review summarizes relationship of mTOR signaling among lung develop-ment,acute lung injury and lung fibrosis,to explore the role of mTOR signaling in the development of bronchop-ulmonary dysplasia,in hope of providing novel method in the prevention and treatment of bronchopulmonary dysplasia.

Objective To analyze the clinical diagnosis value of Color Doppler Flowing Imaging in the diag-nosis of female breast mass ,discuss sonographic features of breast hyperplasia and maeexy dyeplesle .Methods The data of 20 patients with breast disease which diagnosed by Color Doppler Flowing Imaging were retrospectively ana -lyzed,some cases were conducted postoperative pathological examination .Results In all cases,13 cases were breast fibroadenoma(65.0%),6 cases were maeexy dyeplesle (30.0%),1 case was metaplastic squamous cell carcinoma (5.0%).The typical fibroadenoma had regular shape ,clear boundary and homogeneous internal echo ,and were mar-ginated smoothly with a fine echoic capsule and a lateral wall shadowing .Conclusion Color Doppler ultrasonography is an approach for noninvasive and simple examination of breast lesion ,and worthwhile for spreading in clinical prac-tice .Analysis of the ultrasonographic performance of breast fibroadenoma is helpful to the diagnosis and differential di -agnosis of breast disease ,which can also improve the level of diagnosis .

At first this paper discusses the concept,the types,the main expressions,and the explanations of deviant behaviors online. On the basis of above-mentioned discussions,the authors then open up prospects for research and suggest that the concept and the research method,the factors,the influences,the prevention,and intervention strategies of the deviant behaviors online and the relationship between deviant behaviors online and offline are important topics to be explored in the future.

Objective To study the relationship between intra-tumor micro vessel density (MVD) clinic opathological features and prognosis of patients with hapatocellular carcinoma(HCC). Methods 30 cases of pathological sections undergone radical surgery for HCC,were evaluated after HE staining and anti-CD 34 monoclonal antibody immuno-histochemical staining. The number of endothelia cells stained by anti-CD34 antibody was counted. The relationship between MVD and survival rate afte roperation was evaluated. Results The surviva Irate was significantly lower in the tumor of larger size, poor stage and higher MVD than that in the other group(P

Objective:To understand the status of medical supplies management and explore the application of RFID technology in medical supplies management.Methods: The implementation of inventory management summarizes some of the experiences from medical supplies, medical supplies in the future direction and management to provide some basis for the implementation of standardized medical supplies, systematic and comprehensive management.Results: Reduce health care costs and improve the level of medical supplies management and accelerate the flow of funds has important significance for the sustainable development of the hospital.Conclusion:The role played by medical supplies and health care practice in the status is irreplaceable, RFID technology as an advanced automatic identification and data capture technologies in the medical field in the future become a hospital for medical goods logistics management indispensable component.

Objective To study the relationship between the expression of mtrF gene and high-level multiple resistant Neisseria gonorrhoea.Methods ① The susceptibility of 58 clinical Neisseria gonorrhoeae to 5 kinds of antibiotic agents was tested by disc diffusion method.② The minimum inhibitory concentration(MIC) of erythromycin was determined by tube dilution method.③ The expression of mtrD and mtrF gene in susceptive group,inter-mediated resistant group and high-level multiple resistant group was detected by semi-quantitative RT-PCR.Results ① There were 30 strains presenting resistance to two or more than two antimicrobial agents,which accounted for 51.7% of the 58 clinical strains.② The number of strains sensitive,intermediate and resistant to erythromycin was 7,21 and 30,respectively,and there were 17 strains with erythromycin MIC≥32.0 ?g /mL.③ Compared with that in susceptive group and inter-mediated resistant group,mtrF expression was up-regulated in high-level multiple resistant group(P

BACKGROUND:As the sequencing technology has been widely used and high-resolution confirmation of organ transplant matching has been gradualy developed, new human leukocyte antigen (HLA) aleles are emerging. However, the gene frequency of some genes cannot be calculated accurately, and there are rare reports. These genes are often ignored, and it is easy to misjudge their genotypes only according to gene frequency. OBJECTIVE:To test and analyze a rare alele, HLA-C*08:99, from a volunteer donor of hematopoietic stem cel transplantation. METHODS: Genomic DNA was extracted automaticaly from the blood sample by using quick DNA purified kit and amplified by HLA-C locus commercial sequence-based typing kit. The purified PCR product was utilized as the DNA template in the sequencing reaction, and six direct sequencing reactions of PCR product covering exons 2, 3 and 4 in both directions were performed using commercial kit. Four direct sequencing reactions of PCR product covering exon 5 in both directions, exon 6 in forward direction and exon 7 in reverse direction were performed using in-house BigDye terminator cycle sequencing reaction kit. Sequencing reaction products purified by ethanol/sodium acetate/ ethylenediaminetetraacetic acid method were sequenced by ABI PrismTM3730 DNA Sequencer. RESULTS AND CONCLUSION:The alele assignment was analyzed with Assign-SBT 3.6+ software, and the sample HLA-C typing result was C*07:04, 08:99. Increasing the sequencing analysis at exons 5, 6 and 7 of HLA-C locus wil help to make clear the ambiguous SBT result and improve the accuracy of HLA-C typing when it is necessary, which shows important significance in clinical tissue matching. Cite this article:Wang DM, Zou HY, Nie DM, Gao SQ, Wang F.Sequencing analysis of a rare human leukocyte antigen, C*08:99, from a volunteer donor of hematopoietic stem cel transplantation. Zhongguo Zuzhi Gongcheng Yanjiu. 2016;20(1):102-106.

Objective To study the changes of transforming growth factor-β (TGF-β),connective tissue growth factor (CTGF) and collagen 1 (COL1) in newborn rat's lung tissue and the expressions of 4EBP1 (eukaryotic promoter) and P7OS6K (mammalian target of rapamyein pathway downstream target protein) after rapamycin and hyperoxia intervention,and to study the influence of mammalian target of rapamyein (mTOR) pathway on hyperoxic lung injury and the possible intervention methods.Method A total of 48 21-day-old neonatal rats were assigned into 8 groups (n =6),including air control group,3 d group (3 days after hyperoxic exposure),7 d group (7 days after hyperoxic exposure),14 d group (14 days after hyperoxic exposure),air + RAPA group (air + rapamycin),3 d + RAPA group (3 days after hyperoxic exposure + rapamycin),7 d + RAPA group (7 days after hyperoxic exposure + rapamycin) and 14 d + RAPA group (14 days after hyperoxic exposure + rapamycin).In the hyperoxic group,newborn rats were exposed to 90％ oxygen for 3,7,14 days respectively.The rats in the hyperoxia + rapamycin intervention groups received intraperitoneal injection of rapamycin and inhaled high concentrations of oxygen for 3,7,14 days respectively.Air ± rapamycin group received intraperitoneal injection of rapamycin for 3 days.To study the pathological changes of lung tissures after hyperoxia and rapamycin intervention,we used ELISA to detect the changes of TGF-β,CTGF and COL1 and Western blot to detect the variations of mTORC1,P70S6K and 4EBP1 expression.Result TGF-β,CTGF,COL1 levels at 3 days,7 days and 14 days after hyperoxic exposure (TGF-[β:33.7±2.8 vs.58.6 ±3.1 vs.98.8 ±1.5 ng/mg,CTGF:50.1 ±1.8 vs.68.7 ± 2.2 vs.94.4 ±2.5 ng/mg,COL1:471.9 ±5.7 vs.529.7 ±7.0 vs.556.4 ±8.5 ng/mg) were significantly higher than the air control group (TGF-β:25.5 ± 1.9 ng/mg,CTGF:41.7 ± 1.4 ng/mg,COL1:414.4 ± 8.9 ng/mg) (P ＜ 0.01).While the levels in rapamycin intervention group were significantly lower than all the hyperoxia + rapamycin intervention groups (P ＜ 0.01).The lung tissue pathological grades in 3 d + RAPA group and 7 d + RAPAgroup were significantly lower than those in the 3 d group and 7 d group (3.5 ± 0.8 vs.6.3 ± 2.3 and 9.7 ± 2.0 vs.14.0 ± 2.4) (P ＜ 0.01).The mTORC1,P70S6K,4EBP1 expressions in 3 d + RAPA group were lower than 3 d group (mTORC1:0.26 ± 0.04 vs.0.29±0.08,P70S6K:0.29±0.01 vs.0.31 ±0.08,4EBP1:0.31 ±0.06 vs.0.33 ±0.06) (P＜0.05),while the expressions in 7 d + RAPA and 14 d + RAPA groups were significantly lower than 3 d + RAPAgroup (P ＜0.01).Conclusion mTOR signal pathway may be involved in the repairing process of hyperoxic-induced lung fibrosis.Rapamycin can reduce the levels of TGF-β,CTGF and COL1 and inhibit the expressions of mTOR pathway downstream target protein P70S6K and 4EBP1,thus reduce lung injury atearly stage.

Objective To investigate the impact of functional enhancement of efflux pump system and reduced permeability of outer membrane on high-level multiple resistant Neisseria gonorrhoeae.Methods Several high-level multiple resistant isolates with erythromycin MIC=128.0 mg/L,accompanied by concurrent resistance to several antimicrobial agents,were selected.13 bp inverted sequence positioned within the mtrR promoter region were amplified by PCR and directly sequenced to detect the possible gene change.The outer membrane proteins of the strains were extracted to analyze the constitutive profiles by SDS-PAGE.Results There were no gene mutations in 5 sensitive strains.All the 3 high-level multiple resistant strains contained the same mutation and exhibited a single A/T base pair deletion in 13 bp inverted sequence positioned within the mtrR promoter region.Meanwhile porin protein 31 ku deficiency was found in all the 3 resistant strains.Conclusion The functional enhancement of efflux pump system induced by a single A/T base pair deletion in 13 bp inverted sequence positioned within the mtrR promoter region and the decreased cell envelope permeability induced by the absence of porin protein may have some effect on mediating high-level multiple resistance in Neisseria gonorrhoeae.

A total of 16 patients with airway stenosis including benign lesion (n=4) and malignant disease (n=12) were treated with argon plasma coagulation (APC) and Z-type covered retrievable metallic stent.L-and I-type stents were placed by guidance of brenchoscope,while Y-type stent was placed by the guidance of both bronchoscope and fluoroscope.Airway stenosis was from (58.8 +9.1)% before APC to (7.5±2.4)% after APC in tracheal,from (67.4±7.4)% to (19.4±4.1)% in left main bronchus,from (69.6±8.9)% to (27.6±5.4)% in right main bronchus.Symptoms of chest distress and breathlessness were improved remarkably,tachypnea indexes were decreased,but Kamofsky performance scope were increased.Twelve stents were successfully installed by the first time,including 9 Y-shape;otherwise,4 stents failed to be installed because the carinal was too wide to insert the Y-shape stent in two patients with lung cancer,finally,L+I type stents were used.Median survival time after successful stenting was 10 months,and mean time was 13 months.APC combined with bifurcated metal stants relieved obstruction and improved quality of life.