Halomonas sp.BYS-1 was a moderately halophilic bacteria strain isolated from activated sludge,It could grow on MM with NaCl concentration from 0.1～2.6 mol/L and phenyl acetic acid as sole carbon souce. When BYS-1 grew in the media with different concentrations of NaCl, there was no obvious change in its intracellular Na+ contents , it accumulated K+, glutamic acid and betaine as osmoprotectants. Its intracellular contents of K+,glutamic acid and betaine increased by 1.9,2.4 and 13.6 times, respectively, when the concentration of NaCl increased from 0.1 mol/L to 2mol/L.

Diagnosis, Differential ; Fetus ; Fibroma ; metabolism ; pathology ; Fibrosarcoma ; congenital ; genetics ; metabolism ; secondary ; Hemangiopericytoma ; metabolism ; pathology ; Humans ; Kidney Neoplasms ; pathology ; secondary ; Liver Neoplasms ; pathology ; secondary ; Lung Neoplasms ; pathology ; secondary ; Male ; Nerve Sheath Neoplasms ; metabolism ; pathology ; Rhabdomyosarcoma, Embryonal ; metabolism ; pathology ; Soft Tissue Neoplasms ; congenital ; genetics ; metabolism ; pathology ; Vimentin ; metabolism

BCG Vaccine ; adverse effects ; Child ; Child, Preschool ; Genetic Diseases, X-Linked ; complications ; Granulomatous Disease, Chronic ; complications ; genetics ; Humans ; Infant ; Infant, Newborn ; Lymphadenitis ; etiology ; Male ; Membrane Glycoproteins ; genetics ; NADPH Oxidase 2 ; NADPH Oxidases ; genetics

Acute Disease ; Administration, Inhalation ; Adolescent ; Asthma ; drug therapy ; Budesonide ; administration & dosage ; Child ; Child, Preschool ; Female ; Humans ; Male ; Oxygen ; Terbutaline ; administration & dosage

HIV-1 integrase (IN) is a key enzyme for the viral replication. The protein-protein interaction (PPI) between HIV-1 IN and a cellular cofactor lens epithelium-derived growth factor (LEDGF/p75) is a validated target for anti-HIV drug discovery. In order to build the platform for screening inhibitor against PPI between IN and LEDGF/p75, the vector containing the LEDGF/p75 protein cDNA was constructed and expressed in Escherichia coli and the function of the LEDGF/p75 protein was assayed. The LGDGF/p75 encoding gene optimized according to the preference codon usage of E. coli, was synthesized and cloned into the expression vector pGEX-4T-1 to form a recombined plasmid, then transformed into host cell E. coli BL21 (DE3). The recombined clones were identified and confirmed by BamH I/Sal I digestion and sequencing, the successfully recombined plasmid in the host cell was induced by IPTG and the condition of the expression was optimized. The expressed protein was purified by the Ni2+ affinity chromatography column and SDS-PAGE was used to analyze the molecular weight and specificity. In addition, ELISA assay was used to analyze the function of the recombinant protein. The recombinant LGDGF/p75 was soluble, and expressed highly and stably in E. coli. The protein was proved to enhance HIV-1 IN strand transfer activity in vitro by ELISA. It will be helpful to build the platform of screening inhibitors against PPI between IN and LEDGF/p75.
Cloning, Molecular ; Escherichia coli ; metabolism ; HIV Integrase ; metabolism ; HIV-1 ; physiology ; Humans ; Intercellular Signaling Peptides and Proteins ; biosynthesis ; Protein Binding ; Virus Replication

Adult ; Female ; Granular Cell Tumor ; Humans ; Nasal Septum ; pathology ; Nose Neoplasms

Objective To discuss the value of hypotonic-MRCP combined with LAVA dynamic contrast-enhanced scan in diagnosis of duodenal tumor.Methods Five patients with duodenal adenocarcinomas confirmed by pathology were involved in this study.All cases underwent plain MRI and hypotonic-MRCP and LAVA dynamic contrast-enhanced scans.Results 4 of 5 cases were correctly diagnosed with MR imaging.Imaging signs included:the cavum of descending duodenum appeared as asymmetrical stenosis,masses with soft tissue signal intensity connecting the intestinal wall with wide base,the intestinal wall stiff,the intestinal mucosa destruction.The lesions would be slightly-moderately enhanced at LAVA dynamic enhancement scanning.Conclusion Hypotonic-MRCP combined with LAVA dynamic contrast-enhanced scan can display the direct and indirect sign of duodenal tumors,which was effective in identifying the circumscription of the tumor and its extension.

Objective To study if tumor retraction assessed by endiscopic uhrasonography (EUS) during radiotherapy has prognostic value in esophageal carcinoma, which may further predict the radiosensi-tivity. Methods The maximal tumor thickness was measured by EUS before radiotherapy and at 40 Gy in patients with esophaged carcinoma. Response was defined as at least 50% reduction in tumor thickness. Re-suits A total of 51 patients were included. The median follow-up time was 28.5 months. The median sur-vival time was 24.3 months. The treatment was radiotherapy alone, concurrent chemoradiotherapy and pre-operative treatment in 35, 10 and 6 patients, respectively. Tumor response was assessed by EUS in 18 pa-tients (34%). The 2-year overall survival (OS) and progression-free survival (PFS) were 69% and 59% for responders, comparing with 37% and 29% for non-responders (χ~2= 5.78, P = 0.016 and χ~2= 3.97, P =0.046, respectively). In radiotherapy alone group, the 2-year OS and PFS were significantly higher in responders (n = 11) comparing with non-responders (n =24)(60% vs 44% ,χ~2 =5.84,P =0.016 and 20% vs 10% ,χ~2 =4.20, P =0. 040). In preoperative radio (chemo) therapy group (n =6), pathological-ly complete response, partial response and minimal response were observed in 4, 1 and 1 patients, respec-tively. EUS detected tumor response in 4 of 5 (80%) patients with tumor regression, and non-response in 1 of 1 patient without tumor regression. Conclusions The prognosis is better in patients with esophageal car-cinoma responding to neoadjuvant treatment identified by EUS than that of non-responders.

Objective To identify endoscopic and the endoscopic ultrasonography (EUS) features of esophageal tuberculosis.Methods We retrospectively analyzed the data of 39 cases (mean age 50.7) of esophageal tuberculosis diagnosed by endoscopy and EUS in past 6 years.Results A total of 29 lesions were found in the middle part of esophagus,and 5 in upper and lower part,respectively.The lesions under endoscope demonstrated as protrusion in 30 and ulceration in 9.EUS found esophageal wall thickness in 9 cases,intra-wall occupying lesion in 17,mediastinum occupying lesions involving esophagus in 13,and calcified lymph nodes in mediastinum which was integrated with esophageal outer wall in 28 cases.Conclusion The esophageal tuberculosis occurs mainly in the middle part of the esophagus,and appears as protrusion and ulceration under endoscopy.EUS can find occupying lesions intra-or out of the esophageal wall,and full layer thickness,which can accompany calcified lymph nodes in meidastinum,and can be the basis of diagnosis.

Objective To investigate the effects of a training program based on virtual reality on static and dynamic balance perfor-mance in patients with Parkinson's disease (PD). Methods From June, 2014 to June, 2016, 46 patients with PD were randomly divided into control group (n=23) and experimental group (n=23). The control group received routine balance training, while the experimental group re-ceived balance training of virtual reality, for six weeks. They were assessed with Unified Parkinson's Disease Rating Scale part 3 (UP-DRS3), Berg Balance Scale (BBS), TimedUp and GoTest (TUGT) and Hamilton Depression Scale (HAMD) before and after training. The envelope area, anteroposterior standard deviation (AP-SD), mediolateral standard deviation (ML-SD) of centre of pressure (COP) were also measured with posturography. Results The scores of BBS, TUGT and HAMD improved in both groups after training (t>2.657, P<0.05), and improved more in the experimental group than in the control group (t>2.426, P<0.05). The score of UPDRS3 and the parameters of pos-turography improved in the experimental group (t>2.626, P<0.05), and improved more than that in the control group (t>2.112, P<0.05). Con-clusion Virtual reality rehabilitation is more effective than routine balance training on the static and dynamic balance function in patients with PD, and may release their depression.