Design and implementation of quality management system for tumor radiotherapy / 中华放射肿瘤学杂志

Objective:To design and implement a network-based quality management system for tumor radiotherapy.Methods:The system consists of B/S framework-based three-layer structures including the application layer, system service layer and data layer. It utilizes Nutz as the development framework to develop web applications, MySQL as the system database, Java programming language for system development, Tomcat as a system application server for project release and IE, Google and other mainstream browsers to achieve client access server functions.Results:The system can support integrated information management and service of quality control institutions at the provincial, municipal and county levels. The functions include procedure management, case management, quality control management, notification announcement, data management and system management, etc. The system has been set up and tested in the cooperation units, and the operation and function are in good condition.Conclusion:The system can support the assessment of online quality control, which is conducive to information analysis and sharing, promotes the standardization and normalization of quality control and improves work efficiency. Case management function can monitor the diagnosis and treatment processes of patients, establish continuous electronic record, deliver rational treatment and rehabilitation guidance plan, which play a pivotal role in the evaluation of tumor radiotherapy.

Expression of triggering receptor expressed on myeloid cells in periventricular leukomalacia of neonatal rat model / 中华行为医学与脑科学杂志

Objective:To investigate the expression of triggering receptor expressed on myeloid cells(TREMs)in periventricular leukomalacia(PVL) of the neonatal rat model.Methods:Thirty-two 3-day-old neonatal rats were double-blinded randomly divided into Sham group and Model group.The PVL rat model was established by ligating right carotid artery and oxygen deprivation.Hematoxylin-eosin (HE) was adopted to compare pathological changes of brain tissue between the two groups, and immunofluorescence was adopted to detect the expression of myline basic protein (MBP) in the right hemisphere of the two groups.Western blot was performed to detect the expression of TREM1 and TREM2 in the right hemisphere of the two groups.Results:The results of HE staining showed that the brain tissues of Model group were significantly damaged compared with that of Sham group, and the mean fluorescence intensity of MBP in Model group(26.629±2.317) was significantly lower than that in Sham group(33.579±2.824), with statistically significant differences( t=9.124, P<0.05). The expression of TREM1 in Model group(0.789 ±0.120) was higher than that in Sham group(0.567±0.093), with statistically significant differences( t=-3.891, P<0.05). The expression of TREM2 in Model group(0.544±0.133) was lower than that in Sham group(0.791±0.118), with statistically significant differences( t=3.667, P<0.05). Conclusion:The expressions of TREM1 and TREM2 in the neonatal rat model of PVL change abnormally, suggesting that TREMs may be involved in the pathological process of preterm white matter injury.

Efficacy of Fecal Microbiota Transplantation in Irritable Bowel Syndrome Refractory to Conventional Therapy / 胃肠病学

Background: The efficacy of traditional treatment for irritable bowel syndrome (IBS) is limited. Some small case series published abroad showed that fecal microbiota transplantation (FMT) is effective for treatment-resistant IBS, but studies investigating the effect of FMT on IBS refractory to conventional therapy are rare in China. Aims: To observe the efficacy and safety of FMT in patients with IBS refractory to conventional therapy. Methods: Nineteen inpatients with IBS (including 15 cases of IBS with diarrhea and 4 cases of IBS unclassifiable) at the First Affiliated Hospital of Guangdong Pharmaceutical University who were refractory to conventional treatment for more than 6 months were enrolled in this study. Fecal microbiota was transplanted through colonic or middle digestive tract transendoscopic enteral tubing (TET). The clinical efficacy and safety were evaluated after 1 month and 6 months of treatment. Results: Each IBS patient received 2-4 courses of treatment (totally 186 FMT procedures). The mean value of Bristol stool form scale was 6.00±0.67 before FMT treatment, and decreased to 4.58±0.61 and 4.32±0.58 after 1 month and 6 months of treatment, respectively (P0.05). The most common adverse effects were transient diarrhea, distension and abdominal pain during the hospitalization. During the 6-month follow-up, no adverse effects and pathogen-related diseases were observed. Conclusions: FMT is effective for the treatment of IBS patients who are refractory to conventional therapy. The adverse effects are mild and transient.

Efficacy Observation of High Dose Methylprednisolone in the Pulse Treatment of Infantile Spasms / 中国药师

Objective:To observe the efficacy and safety of high dose methylprednisolone in the pulse therapy for infantile spasms. Methods:Totally 70 cases of infantile spasms were randomly divided into the conventional dose group and high dose group with 35 ones in each according to the random number table. High dose group was given methylprednisolone pulse therapy for the first 5 days, and then received the conventional dose treatment. The conventional dose group received prednisone tablets orally. The treatment course was 8 weeks. The ECG outcome, efficacy and incidence of adverse reactions were observed and compared between the groups, and the efficacy of pulse therapy for the patients with different causes and different course was also studied. Results:The total effective rate of high dose group was 94. 29%, which was significantly higher than that of conventional dose group (71. 43%), and the difference was statistically significant (P0. 05). The incidence of adverse reactions in high dose group was wigher, while the difference was not significant (P>0. 05). The efficacy of pulse therapy for different causes and different course had no statistically significant difference (P >0.05). Conclusion: High dose methylpred-nisolone pulse therapy can effectively improve clinical efficacy for infantile spasms, which shows no effect on the safety of patients.

Correlation of CCR5 expression with β-arrestin 2 expression in colonic mucosa of patients with inflammatory bowel disease / 中国病理生理杂志

AIM:To analyze the expression of CCR5 and correlation with the expression ofβ-arrestin 2 in the intestinal mucosa of the patients with inflammatory bowel disease ( IBD) , so as to study the role of CCR5 andβ-arrestin 2 in the pathogenesis of IBD.METHODS:Paraffin sections of the colonic mucosa were prepared from 53 patients with active IBD, 26 patients with remissive IBD and 30 healthy people.Immunohistochemical EnVision two-step method was used to test the expression of CCR5 andβ-arrestin 2 in the biopsic intestinal mucosa.RESULTS:The positive rate, strongly posi-tive rate and immunohistochemical score of CCR5 expression in active IBD were significantly higher than those in normal controls or remissive IBD (P<0.05).No correlation of CCR5 expression with clinical severity, lesion distribution, and endoscopic grade in active IBD was observed.The expression ofβ-arrestin 2 was significantly lower in active IBD than that in the remissive IBD and normal controls, and there was a negative correlation ofβ-arrestin 2 expression with CCR5 expres-sion (P<0.05).CONCLUSION:The expression of CCR5 is higher, and expression ofβ-arrestin 2 is lower, and there is a negative correlation of expression of CCR5 with expression ofβ-arrestin 2 in intestinal mucosa of the active IBD.

Panning and identification of antagonistic active peptides specifically bin-ding to the first and second extracellular membrane loops of rat CCR5 by technique of phage display peptide library / 中国病理生理杂志

[ ABSTRACT] AIM: To pan the active peptides which specifically bound to the first and second extracellular membrane loops of rat CC chemokine receptor 5 ( CCR5 ) .METHODS: The technique of phage display peptide library was used and binding ability of the peptides was identified.The amino acid sequences of the first and second extracellular loops of rat CCR5 were searched in the protein database and chemically synthesized corresponding linear peptides were used as targets in the biopanning.After 3 to 4 rounds of screening with Ph.D.TM-7 Phage Display Peptide Library were per-formed, the specific phages were collected and primarily identified by ELISA.RESULTS:The sequences of the peptides displayed on the selected phages were GHWKVWL and HYIDFRW, both of them exhibited positive in phage binding ELISA and the binding to phages and targets were concentration dependent and saturable.CONCLUSION:Two antagonis-tic active peptides specifically binding to CCR5 were successfully obtained by the technique of phage display peptide librar-y, and the binding ability to the first and second extracellular membrane loops of rat CCR5 were proved in vitro.

The relationship between concentration of oxidized low density lipoprotein and carotid intima-media thickness in patients with acute cerebral infarction / 国际检验医学杂志

Objective To study the relationship between the concentration of oxidized low density lipoprotein(Ox-LDL)and ca-rotid intima-media thickness(IMT)in acute cerebral infarction(ACI group).Methods 44 ACI patients(ACI group)and 30 healthy individuals(control group)were enrolled in the study,whose serum concentrations of Ox-LDL were determined by using enzyme-linked immunosorbent assay(ELISA),and carotid IMT of ACI patients were measured by using ultrasound,then the relationship between Ox-LDL and carotid IMT of ACI patients was analysed.Results The serum concentration of Ox-LDL in ACI group was significantly higher than that in control group(P <0.01).In ACI group,the serum concentration of Ox-LDL was positively correla-ted with carotid IMT(r =0.493,P <0.05 ).In ACI group,the serum Ox-LDL concentrations of patients whose IMT≥1.0 were higher than patients whose IMT<1.0 mm(P <0.05).Ox-LDL concentrations of ACI patients were positively correlated with the carotid IMT(r =0.493,P <0.05 ).Conclusion The serum concentration of Ox-LDL increased significantly in ACI patients,and was closely related to carotid atherosclerosis.

Clinical significance of CXCL9 expression in peripheral blood of patients with systemic lupus erythematosus / 重庆医学

Objective To investigate the expression and significance of CXCL 9 in systemic lupus erythematosus (SLE ) . Methods The level of CXCL9 in peripheral blood from 20 patients with SLE and 20 normal controls were measured by enzyme linked immunosorbent assay .Compare the difference of the expression level of CXCL 9 in peripheral blood between two groups and analyzed their correlation with ages ,duration ,SLE diseases activity index (SLEDAI) .Results The level of CXCL9 in peripheral blood in patients with systemic lupus erythematosus was (1 549 .14 ± 362 .74)pg/L ,but in normal controls was(602 .54 ± 83 .70)pg/L .The level of CXCL9 in peripheral blood in patients with systemic lupus erythematosus was obviously higher than that in controls by statistical analysis ,there was significant difference between the two groups (P<0 .01) .The expression level of CXCL9 in pe‐ripheral blood of patients with systemic lupus erythematosus was positively correlated with SLEDAI (r=0 .892 ,P<0 .01) .Conclu‐sion CXCL9 may be involved in the pathogenesis of systemic lupus erythematosus .

Clinical significance of CXCL9 and IL-22 expression in peripheral blood of patients with psoriasis vulgaris / 重庆医学

Objective To detect the expression level of CXCL9 and IL‐22 in peripheral blood of patients with vitiligo vulgaris and explore its role in the pathogenesis of vitiligo vulgaris .Methods The level of CXCL9 and IL‐22 in peripheral blood from 35 vit‐iligo patients (20 active cases and 15 stable cases) and 20 normal controls were measured by enzyme linked immunosorbent assay . Then ,we compared the differences in different groups and analyzed their correlation with ages ,duration ,psoriasis area and severity index (PASI) .Results The contents of CXCL9 and IL‐22 in active cases and stable cases were obviously higher than those in con‐trols respectively by statistical analysis ,there was significant difference (P< 0 .05) .The contents of CXCL9 and IL‐22 in active ca‐ses were obvious higher than those in stable cases ,there was significant difference(P< 0 .05) .Conclusion CXCL9 and IL‐22 may be involved in the pathogenesis of vitiligo vulgaris .