Objective To explore the clinical efficacy and safety of intraoperative radiotherapy (IORT) for the patients with unresectable locally advanced pancreatic cancer. Methods Cochrane library, PubMed, EMbase, CBM, CNKI, VIP database and WANFANG database were used to retrieve, in addition to manual retrieval important literature references and conference papers. The randomised controlled trials, cohort study, controlled clinical trials of the IORT in unresectable locally advanced pancreatic cancer were searched. According to the inclusion criteria and exclusion criteria, after the extraction of literature and data, RevMan 5.3 software was used for meta-analysis. Results The total of 1 401 articles were retrieved, 7 met the inclusion criteria, including 1 for randomized controlled trials, 4 for cohort study, 2 for case-control study. 313 cases in the IORT group, 362 cases in the control group, and meta-analysis showed that IORT group was better than control group in overall survival (OS) (Z=4.15, P<0.000 1, RR=2, 95%CI 1.05-2.94). Because lack of complete data in local control rate, pain remission rate, complications, descriptive analysis was done, rather than meta-analysis. Conclusions IORT may improve the OS of patients with unresectable locally advanced pancreatic cancer and the local control rate, and effectively alleviate pain with favorale safety but it still needs high quality randomized controlled trials to confirm.

Prognosis factors of Ⅲ A (N2) phase non-small cell lung cancer are various.The histological molecular markers are mainly about multi-resistant gene,growth factors,mucin 4,insulin-like growth factor-2,Ki-67,PTEN and so on.Different expressions of these genes may divide the N2 non-small-cell lung cancer into different molecular subtypes,which is more effective to guide clinical therapy.

An investigation of the dietary conditions and the growth of children was made from February to May 1982 in 14 nurseries and kindergartens in G districts of Tianjin.The results showed: the calorie intake was lower than 80% of the daily allowance of normal children in 11 of 14 nurseries and kindergartens while the protein intake was lower than 70% of the daily allowance in 12. The levels of other nutrients were also lower. The heights and body weights of children in these institutions belonged to B class of 6 grades by Zhou Qi-yuan.The causes of calorie and protein insufficiency and some suggestions were discussed.

Objective:To investigate the efficacy and safety of plasma exchange (PE) combined with plasma perfusion (PP) in treatment of liver failure and the influence on inflammatory factors and liver function.Methods:98 patients with liver failure in our hospital from February 2014 to February 2016 were selected as the subjectswere,and they were randomly divided into experimental group and control group,and each group was 49 cases.The experimental group was treated with PE combined with PP,and the control group was received PE alone.The liver function before and after treatment was detected by automatic biochemical analyzer.The serum levels of C-reactive protein (CRP),tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) were determined by enzyme-linked immunosorbent assay (ELISA).The total effective rate,the incidence of side effects,the levels of liver function and inflammatory factors before and after treatment were compared between the two groups.Results:The clinical effective rate in the experimental group (91.84％) was significantly higher than that in the control group (73.47％),the difference was statistically significant (P＜0.05).The incidence of adverse reactions in the experimental group (10.20％) was significantly lower than that in the control group (38.78％),the difference was statistically significant (P＜0.05).The levels of serum alanine aminotransferase (ALT),total bilirubin (TBIL) and blood ammonia (NH3) were significantly decreased in both groups after treatment (all P＜0.05).Albumin (ALB) and thrombin activity (PTA) were significantly increased in both groups after treatment (both P＜0.05).After treatment,the serum levels of ALT,TBIL and NH3 in the experimental group were lower than those in the control group (all P＜0.05),the levels of ALB and PTA were higher than those of the control group,the difference was statistically significant (both P＜0.05).After treatment,the serum levels ofCRP,TNF-α and IL-6 were lower than those before treatment,and the serum levels of CRP,TNF-α and IL-6 in the experimental group were lower than those in the control group (all P＜0.05).Conclusion:The combination of plasma exchange and plasma perfusion has a good effect in the treatment of liver failure,and the incidence of adverse reactions is low.It can effectively remove inflammatory factors,improve liver function and improve the quality of life of patients.

Objective To observe the levels of serum VEGF in different molecular subtypes of breast cancer and explore its relationship with response to neoadjuvant chemotherapy. Methods Levels of serum VEGF in 110 cases with breast cancer underwent neoadjuvant chemotherapy were detected by ELISA prior to and after 3 cycles of neoadjuvant chemotherapy. Clinical response to neoadjuvant chemotherapy was evaluated by physical examination and ultrasonography. Results Levels of serum VEGF were significantly increased in breast cancer patients with≥4 lymph node metastasis than those with < 4 lymph node[(307.31 ± 101.42) pg/mL vs. (170.16 ± 73.07) pg/mL,P = 0.017]. Patients with positive HER-2 status had significantly higher levels of serum VEGF than those with HER-2 negative status [(235.15 ± 88.42 ) pg/mL vs. (179.82 ± 69.90) pg/mL, P = 0.024]. No significant difference was observed among age , menopausal status and hormone status. In patients with neoadjuvant chemotherapy of cCR and Cpr,the mean levels of serum VEGF were (205.75 ± 78.12) pg/mL and (226.04 ± 89.04) pg/mL, respectively. After 3 cycles of chemotherapy, levels of serum VEGF decreased to (145.15 ± 67.08) pg/mL and (161.27 ± 93.57) pg/mL. There was significant difference between two groups (P=0.009,0.014). In patients with SD or PD response, no significant difference was observed between levels of serum VEGF before and after chemotherapy (P = 0.577). Conclusions Levels of serum VEGF in breast cancer correlate with lymph nodes metastasis and HER-2 status and may decrease after neoadjuvant chemotherapy. However,whether or not the levels of serum VEGF can be used as a biomarker for response to neoadjuvant chemotherapy needs more further studies.

BACKGROUND:The key of stem cells for treating nervous tissue injury is the transplantation of stem coils that have regeneration capacity.The structure and function of central nervous system were re-established by multiple action mechanisms.OBJECTIVE:To explore the effects and mechanisms of bone marrow mesenchymal stem cells(BMSCs)locally transplanted into rats with spinal cord injury on neurological recovery.METHODS:BMSCs were separated with density gradient centrifugation and cell attachment.10 mg/L BrdU was used for labeling before cell transplantation.Adult female Wistar rats were used to establish spinal cord injury models using an aneurysm clip,and they were then randomly divided into control group,saline group and transplantation group.In the transplantation group,BMSCs were transplanted into the damaged spinal cord by stereotaxis at day 7 following damage.In the saline group,an equal volume of saline was utilized.In the control group,the rats were left intact.Basso,Beattie and Bresnahan(BBB)locomotor rating scale was used before and at 7,14,30,60 and 90 days following damage.Rats were sacrificed at day 90.BrdU-positive cells,Brdu+neuron specific enolase,Brdu+glial fibrillary acidic protein(GFAP),Brdu+basic fibroblast growth factor(bFGF),and Brdu+brain-derived nerve growth factor(BDNF)immunohistochemistry double-staining cells and simple staining positive calls were observed.RESULTS AND CONCLUSION:The recovery of BBB function score was better in the transplantation group than in the control group(P＜0.05).The recovery speed of BBB function score was slower in the saline group than in the control group at 30 days following damage(P＜0.05).No significant difference was determined at day 90 compared with the control group(P＞0.05).BrdU-positive cells and double-staining cells of immunohistochemistry could be found at the center of damage site and 1 cm from caudal end to damaged site in rats of the transplantation group.The number of NSE,GFAP,bFGF and BDNF simple staining cells was significantly greater in the transplantation group than in the control and saline groups(P＜0.05).Results indicated that BMSC transplantation can improve the recovery of nervous function of rats with spinal cord injury.Its mechanism may be correlated with the differentiation of transplanted cells into neuron-like and glial cell-like cells,secretion or promoting secretion of neurotrophic factors in host.

Objective To observe the efficacy and safety of apatinib combined with docetaxel in the third line and above treatment of advanced serum alpha-fetoprotein-positive gastric cancer(AFPGC). Methods A total of 41 patients with AFPGC from February 2015 to April 2018 in Suining Central Hospital of Sichuan Province were retrospectively analyzed. The patients were divided into experimental group and control group according to different treatment methods,15 patients in the experimental group received with apatinib combined with docetaxel,and 26 patients in the control group received chemotherapy alone or optimal nutritional support. The short-term efficacy,long-term efficacy and adverse reactions were evaluated by Response Evaluation Criteria in Solid Tumours(RECIST)version 1. 1,progression-free survival(PFS),overall survival(OS)and National Cancer Institute Common Terminology Criteria for Adverse Events(NCI CTCAE)version 4. 0. Results After 2 cycles of treatment,no complete remission( CR)was achieved in either group,4 partial remission (PR),7 stable disease(SD),4 progressive disease(PD)in the experimental group,and 2 PR,7 SD,17 PD in the control group. The objective response rate(ORR)was 26. 67％(4 / 15)and 7. 69％(2 / 26)respective-ly in the experimental group and the control group,with no significant difference(χ2 = 1. 433,P = 0. 231). The disease control rate(DCR)was 73. 33％(11 / 15)and 34. 62％(9 / 26)respectively in the two groups, with significant difference(χ2 = 5. 707,P = 0. 017). The median PFS of the experimental group and the control group were both 3. 0 months,and there was no significant difference between the two groups(χ2 = 4. 425,P =0. 350). The median OS were 6. 0 months and 4. 0 months respectively,and the difference was statistically sig-nificant(χ2 = 5. 727,P = 0. 017). The occurrence rates of leukopenia of the experimental group and the control group were 73. 33％(11 / 15)and 30. 77％(8 / 26),the occurrence rates of hypertension were 40. 00％(6 /15)and 0(0 / 26),the occurrence rates of proteinuria were 26. 67％(4 / 15)and 0(0 / 26),the occurrence rates of poor appetite were 80. 00％(12 / 15)and 38. 46％(10 / 26),and the occurrence rates of hemorrhage were 33. 33％(5 / 15)and 3. 85％(1 / 26). The occurrence rates of the above adverse reactions in the experi-mental group were significantly higher than those in the control group(χ2 = 6. 930,P = 0. 008;χ2 = 9. 191, P = 0. 002;χ2 = 4. 953,P = 0. 026;χ2 = 6. 600,P = 0. 010;χ2 = 4. 471,P = 0. 034),and the differences were statistically significant. There was no significant difference in the incidence of thrombocytopenia,anemia, nausea and vomiting,diarrhea,fatigue and hand-foot syndrome between the two groups( all P > 0. 05). Conclusion The DCR of apatinib combined with docetaxel in the third-line and above treatment of advanced AFPGC patients is higher. This scheme can prolong survival period,and the adverse reactions are more serious,but they are basically tolerable.

Objective:To evaluate the clinical efficacy of cannulated screws with sutures in the treatment of patellar transverse fractures.Methods:A retrospective analysis was performed of the data of 70 patients with patellar transverse fracture who had been admitted to Senior Department of Orthopedics, The Fourth Medical Center of Chinese PLA General Hospital from January 2017 to March 2021. According to the construction methods for the tension band, the patients were divided into 3 groups. In group A of 21 cases subjected to fixation with cannulated screws with sutures (Fiber-Tape), there were 8 males and 13 females with a median age of 55.0 (48.0, 65.0) years; in group B of 32 cases subjected to fixation with Kirschner wire tension band, there were 15 males and 17 females with a median age of 52.5 (41.5, 63.0) years; in group C of 17 cases subjected to fixation with Cable-Pin system, there were 5 males and 12 females with a median age of 55.0 (37.0, 65.0) years. The 3 groups were compared in terms of complications, secondary surgery (removal of internal fixation), operation time, intraoperative blood loss and knee function rated by the Lysholm and B?stman scores at the last follow-up.Results:There were no significant differences in the preoperative general data between the 3 groups, showing they were comparable ( P > 0.05). There was no significant difference in the operation time, intraoperative blood transfusion or follow-up time among the 3 groups ( P > 0.05). The incidence of soft tissue irritation [4.8% (1/21)] and the secondary operation rate [4.8% (1/21)] in group A were significantly lower than those in group B [43.8% (14/32) and 37.5% (12/32)] and group C [41.2% (7/17) and 35.3% (6/17)] ( P < 0.05), but there was no statistically significant difference between group B and group C ( P > 0.05). In groups A, B and C, respectively, the Lysholm knee score was 84.0 (69.0, 88.0), 89.0 (71.5, 95.0) and 82.0 (63.0, 90.0), and the B?stman knee score 26.0 (23.0, 28.0), 26.5 (24.0, 27.5) and 26.0 (22.0, 28.0), showing no significant difference ( P > 0.05). There was no significant difference either in the incidence of other complications among the 3 groups ( P > 0.05). Conclusion:In the treatment of patellar transverse fractures, compared with the Kirschner wire tension band and Cable-Pin system, cannulated screws with sutures (Fiber-Tape) may lead to a lower incidence of soft tissue irritation and a lower rate of secondary surgery, but no significant differences in operation time, intraoperative blood loss, other complications or postoperative functional scores.

Objective To summarize the clinical and the molecular genetic characteristics of type DYT11 dystonia by analyzing the clinical data and pathogenic gene mutation of type DYT11 dystonia of a myoclonus-dystonia syndrome (MDS) family.Methods A MDS family enrolled in the General Hospital of the People's Liberation Army Rocket Force in January 2018 was retrospectively analyzed.The clinical data of 11 affected family members were collected and genetic testing of four affected family members (including the proband) of the MDS family was conducted using a panel of dystonia-associated genes.Results The affected family members showed great differences in clinical characteristics and obvious clinical heterogeneity.Four affected family members had myoclonus and dystonia,two affected family members only had myoclonus and five affected family members only had dystonia.The results of genetic testing showed that the proband,his father and his grandfather had a mutation (c.835_839delACAAA) in SGCE gene,which is autosomal dominant and belongs to type DYT11 dystonia.Conclusions MDS shows clinical heterogeneity.Gene screening is of great importance for the diagnosis and treatment of dystonia with myoclonus.

Objective: To verify the applicability of the theory of planned behavior(TPB) in the physical exercise behaviors of rural adolescents in Sichuan Province, and to explore the possible influencing factors of physical exercise behaviors, and to provide a theoretical basis for further effective intervention measures. Methods: A total of 2 302 students were selected from grade seven and grade ten of two rural middle schools in Zizhong, Sichuan Province. The survey was conducted with a structured questionnaire. Using TPB as the research framework and basis, the structural equation model was constructed for analysis. Results: Lack of physical exercise was 1 527(66.3%).Physical exercise behavior was statistically different among schools, grades(t=-7.40，-2.90，10.90,P<0.05)， and genders. Based on TPB, the structural equation model was established and corrected to obtain the revised model, and the fitting index GFI=0.93, CFI=0.94, NFI=0.94, TLI=0.93, IFI=0.94,RMSEA=0.07, indicating the model fitted good. Exercise intention directly affected exercise behaviors. The standardized effect was 0.45(95%CI=0.39-0.52). Subjective norms and perceived power were the main two mediators of the relationship between value evaluation and exercise intention. The standardized effect values were 0.66(95%CI=0.57-0.73), 0.23(95%CI=0.16-0.93)(P<0.01). Conclusion There is serious lack of physical exercise in rural adolescents in Sichuan Province. TPB has a good applicability for physical exercise in rural adolescents in Sichuan Province. Subjective norm is the most important factors to promote exercise intentions.