Patients treated with radiotherapy (RT) might experience a large variation in normal tissues. Severe radiation damage in a minority of patients limits the doses that might be safe given to the majority. The possibility of predicting such radiation-induced damage would provide a better treatment schedule for the patients. Several predictive tests in peripheral blood lymphocytes such as initial DNA damage, radiation-induced apoptosis and genetic variation have been proposed to know the individual sensitivity of patients to the radiotherapy schedules. This study aimed to summarize the main studies regarding to this ifeld.

Objective To explore the relationship between Sirt1 single nucleotide polymorphisms ( rs2236319 ) and chronic obstructive pulmonary disease ( COPD ) susceptibility. Methods The subjects included 149 patients with stable COPD in the First People′s Hospital of Jining outpatient or ward from March 2014 to March 2015, and 160 cases of the same period health check. Sirt1?rs 2236319 genotype distribution frequency was detected by real?time PCR,and the levels of inflammatory factors were compared,including IL?6 and CRP. Results The AA,AG,GG genotype frequency of COPD group were 59. 1%( 88/149) ,35. 6%( 53/149),5. 4%(8/149) respectively,of control group were 45. 0%(72/160),48. 8%(78/160),6. 3%(10/160) respectively,the allele A,G frequency of COPD group were 76. 8%(229/298),23. 2%(69/298) respectively,of control group were 69. 4%( 222/320 ) , 30. 6%( 98/320 ) respectively, there were statistically significant differences between the two groups(χ2=6. 23,6. 06,P<0. 05) . IL?6 and CRP levels were significantly increased in COPD group carrying AA genotype as compared to COPD group carrying AG+GG genotype((10. 30±0. 40) mmol/L,(10. 16±0. 36) mmol/L;(2. 56±0. 20) mg/L,(2. 46±0. 22) mg/L;F=4. 52,8. 04,P<0. 05);There were no significant differences in terms of IL?6 and CRP levels in control group carrying AA genotype as compared to control group carrying AG+GG genotype ( P>0. 05 ) . Both the level of IL?6 and CRP were significantly increased in COPD group carrying AA genotype and AG+GG carriers compared to controls((10. 30 ± 0. 40 ) , ( 9. 88 ± 0. 56 ) mmol/L, ( 10. 16 ± 0. 36 ) , ( 9. 86 ± 0. 57 ) mmol/L;( 2. 56 ± 0. 20 ) , ( 2. 28±0. 25) mg/L,(2. 46±0. 22),(2. 26±0. 26) mg/L;F=34. 52,11. 09,73. 06,19. 38;P<0. 01). Conclusion The polymorphisms of Sirt1?rs2236319 may be an additional risk factor for COPD and associate with inflammatory factors. Furthermore the involvement of rs2236319 in the initiation and progression of COPD may relate to inflammatory processes.

Objective To investigate the incidence of the pusher syndrome in stroke patients, and the relationship between the syndrome and the neuropsychological symptoms and location of brain lesion, and to investigate the mechanism and the physiotherapy intervention of pusher syndrome. Methods Thirty nine patients(25 male, 14 female, 62.5?9.4 years old) with pusher syndrome were examined, 91 patients(57 male,34 female, 58.4?11.6 years old) without ipsilateral pushing served as control. The lesion areas, neuropsychological syndrome and the Barthel Index(BI) were recorded, and the physiotherapy were administered in the patients. Results The incidence of pusher syndrome was 30% in the patients studied, corresponding to 17% of the total number of stroke patients in the study period. The percentage of pusher syndrome occurrence was higher in the patients with right side lesion than those with left side lesion ( P

ObjectiveTo study a standardization to establish data element in medical data resource share.MethodsThe library of data element's structural glossary items was established frist, then whole data element was established by selecting structural glossary items, finally, the input of data element's character was executed.ResultsA standardization method to establish data element was desigened based on definition, structure and national standard of data element.ConclusionIt's a important work to share medical data resource that establish data element by standardization, and it must be followed correlative standard and select logical method.

AIM: To investigate the clinical features of acquired immune deficiency syndrome ( AIDS) patients associated ocular diseases in Urumqi and the relationship between ocular fundus manifestations and CD4+T cell count.
METHODS: The fundus of 93 AIDS patients were examined by indirect ophthalmoscopy. The clinical symptoms and CD4+T cell count of those patients with fundus changes were analyzed.
RESULTS: Thirteen patients were found having fundus changes which occurred in one eye of 4 patients and two eyes of 9 patients, respectively, and the total detection rate was 14. 0%. Seven patients had vision changes, and the main clinical features of retinal lesion were cotton wool spot and hemorrhage of retina. Four patients were diagnosed as retinitis with cytomegalovirus ( CMV ) infection and 9 patients were diagnosed as HIV related retinopathy diseases. Seven patients among 37 patients with CD4+T cell count ≤100cell/μL had fundus changes related AIDS, and the detection rate was 18. 9%; while 6 patients among 56 patients with CD4+T cell count >100cell/μL had fundus changes related AIDS, and the detection rate was 10. 7%. There was statistical difference between the two detection rates (P<0. 05).
CONCLUSION: No specificity was found of those patients with the clinical manifestation of HIV- related retinopathy, and those patients are easy to be missed diagnosis. A number of AIDS patients have fundus changes without any vision changes. Therefore, it is very useful for AIDS patients to be carried out the routine fundus examination for the early diagnosis and treatment.

In order to provide a reference and theoretical guidance of the evaluation of electronic medical record (EMR) and establishment of evaluation system in China, we applied a bibliometric analysis to assess the application of methodologies used at home and abroad, as well as to summarize the advantages and disadvantages of them. We systematically searched international medical databases of Ovid-MEDLINE, EBSCOhost, EI, EMBASE, PubMed, IEEE, and China's medical databases of CBM and CNKI between Jan. 1997 and Dec. 2012. We also reviewed the reference lists of articles for relevant articles. We selected some qualified papers according to the pre-established inclusion and exclusion criteria, and did information extraction and analysis to the papers. Eventually, 1 736 papers were obtained from online database and other 16 articles from manual retrieval. Thirty-five articles met the inclusion and exclusion criteria and were retrieved and assessed. In the evaluation of EMR, US counted for 54.28% in the leading place, and Canada and Japan stood side by side and ranked second with 8.58%, respectively. For the application of evaluation methodology, Information System Success Model, Technology Acceptance Model (TAM), Innovation Diffusion Model and Cost-Benefit Access Model were widely applied with 25%, 20%, 12.5% and 10%, respectively. In this paper, we summarize our study on the application of methodologies of EMR evaluation, which can provide a reference to EMR evaluation in China.
Bibliometrics ; China ; Databases, Factual ; Electronic Health Records ; Information Storage and Retrieval

Isoprene is an important precursor of synthetic rubber material. In our previous study, metabolic engineered Escherichia coli strain (BW-01) was constructed and used to produce isoprene. Based on the theory of protein budget, using synthetic biology strategies including the increased copy number of genes and rare codons, we regulated the expression of key enzyme to improve isoprene production in Escherichia coli strain. Under shake-flask conditions, isoprene productivity of the engineered strain (BW-07) increased by 73% compared with BW-01, reached 761.1 mg/L. It provides a reference for further studies.
Butadienes ; Escherichia coli ; genetics ; metabolism ; Gene Dosage ; Hemiterpenes ; biosynthesis ; Industrial Microbiology ; Metabolic Engineering ; Mevalonic Acid ; Pentanes ; Synthetic Biology

ObjectiveTo investigate the effects of chitosan/PVA nerve conduits which used for repairing sciatics nerve defect in rats.MethodsTwenty-seven rats were divided into 3 groups randomly,with 9 rats in each group. Firstly, the 15mm defects in the left sciatic nerves were made in the rats and were respectively repaired with chitosan/PVA conduits graft (group A), the silicon conduits graft (group B),and autografts (group C). At 12 weeks after the operations, the left sciatic nerves were taken out, and the comparative evaluation was made on the repairing effects by wet weight of gastrocnemius and soleus muscles, histological examination,computerized imaging analysis and True Blue retrograde tracing. ResultsThe wet weight of gastrocnemius and soleus muscles showed no significant difference between the chitosan/PVA graft and autograft groups (P ＞ 0.05). The wet weight of gastrocnemius and soleus muscles in significant difference between the chitosan/PVA graft and the silicon group at 12 weeks after the operation(P ＜ 0.05). The nerve fiber density showed no statistically significant differences between the chitosan/PVA and autograft groups(P＞ 0.05).The regenerative nerve fiber in group B had normal morphological and structural characters under transmission electron microscope.True Blue-labeled neuron cell bodies were found within both anterior horn of gray matter in the spinal cord and dorsal root ganglions (DRGs) ipsilateral to the operated side of the tested rats on illumination with ultra-violet light 1 week after the injection of True Blue.Conclusion Chitosan/PVA nerve conduit can effectively promote the nerve regeneration and myelinization of rat sciatic nerve, which is expected to substitute for autograft to repair nerve defects succesfully.

Objective To observe the expression of SGK in decidua in patients with unexplained recurrent spontaneous abortion(URSA) and to investigate its role in the course of apoptosis.Methods The expression of SGK was detected by immunohistochemistry in decidua of URSA(abortion group,n =50) and normal first trimester pregnant women(control group,n =30).The apoptotic index was detected by TUNEL.Results Compared with the control group,the positive expression of SGK decreased significantly in the abortion group,and the difference was statistically significant(x2 =6.78,P ＜ 0.05).The average apoptotic index of the abortion group was (8.19 ± 3.58) ％,which was significantly higher than (2.87 ±1.07)％ of the control group(t =7.94,P＜0.05).Conclusion Intensive apoptosis,the decreasing positive expression rate of SGK in decidua cells may play critical roles in URSA.

ObjectiveTo investigate the effect of all-trans retinoic acid (atRA) on the renin-angiotensin system (RAS) in 5/6 renal ablation model. MethodsAtRA was administered to 5/6 renal ablation rats by three dosages: 5 mg·kg-1·d-1 (n=8), 10 mg·kg-1d-1 (n=8) and 20 mg·kg-1 d-1 (n=8) and vehicle (vehicle group, n=8) for 10 weeks. Healthy rats consisted of shamoperation group (n =8). The level of renin and angiotensin Ⅱ in renal tissues were measured by radioimmunoassary. The level of angiotensin type 1 receptor (AT1R) in remnant renal cortex was measured by Western blot. The mRNA expression levels of two subunits of activative protein 1(AP-1),c-jun and c-fos was quantitated by real-time PCR. ResultsAfter 10 weeks of atRA treatment by gavarge, artery blood pressure decreased (P＜0.05). AtRA reduced the levels of renin (P＜0.05) and angiotensin Ⅱ (P＜0.05) in kidney and down-regulated the expression of AT1R protein in renal cortex. Larger dose of atRA (20 mg·kg-1·d-1) performed higher activity in inhibiting renin and AT1R. Compared with vehicle group, atRA could significantly inhibit the expression of renal c-jun and c-fos mRNA (P＜0.05). Conclusion atRA can decrease the over-expression of main components of RAS.