Objective To evaluate the recent impact and long-term effects of recombinant human acidic fibroblast growth factor (rh-aFGF) of cesarean section on women's abdominal incision healing.Methods In 516 cases of cesarean section in women,randomly divided into placebo group (172 cases),spray group (172 cases) and flush group (172 cases).The placebo group received 0.9％ sodium chloride washing abdominal incision suture.The spray group incision suture direcdy after the administration of rh-aFGF spray,per square meter of 3-4 sprays,3-5 times/d.The flush group was given before 2 rh-aFGF dissolved in 10-20 ml of 0.9％ sodium chloride directly after washing the incision suture,then given spray treatment.The recent follow-up of 15 d observed maternal abdominal incision healing.Long term follow-up of 3 months to observe the incision scar formation.Results The abdominal incision heating time was (8.6 ±3.5) d,that was obviously shorter than that in spray group (10.4 ±3.7) d and placebo group (12.7 ± 4.9) d (P ＜ 0.05).The delay healing accounted for 4.2％ (7/166) in flush group,significantly lower than that in placebo group (34/168,20.2％) and spray group (16/165,9.7％) (P＜ 0.05).There was no significant difference in the incidence of fat liquefaction,postoperative infection among three groups (P ＞ 0.05).Flush group exudation,abdominal wall adhesions was lower than placebo group and spray group [2.4％(4/166) vs.10.1％(17/168),5.5％(9/165),3.6％(6/166) vs.17.3％(29/168),9.7％(16/165)](P＜0.05).Long term follow-up,flush group scar area than spray group reduced by 13.5％,than placebo group reduced by 27.2％.Conclusions A recent rh-aFGF can reduce the cesarean section abdominal incision healing time and reduce abdominal wall adhesions and exudation;rh-aFGF the best dosage is intraoperative irrigation treatment spray combined with postoperative.

The value of dobutamine 99m橳c-MIBI SPECT (DBA-SPECT) for detecting coronary artery disease was assessed in 56 patients with chest pain. Exercise ECG, DBA-ECG and DBA-SPECT were obtained. The hemodynamic changes in DBA infusion are similar to that in exercise test. In 21 patients who had coronary angiogram,the sensitivity,specificity and accuracy were 87. 5% ,76. 9% ,81. 7% ,respectively in DBA-SPECT;75. 0%, 92. 3%, 85. 0%, respectively in DBA-ECG,and 87. 5%,46. 2% ,61.9% ,respectively in exercise ECG test. The results showed that DBA-SPECT is a feasible safe and non-invasive method for detecting coronary artery disease.

Objective: To investigate the mechanisms involved in the induction of antitumor immune responses by MIF gene- modified tumor vaccine. Methods: The changes of the number and the functions of macrophages from the force immunized with MIF gene-modified FBI3 tumor vaccine were analysed.Results: The number,the expression of surface molecules associated with immune responses, the secretion of TNF-?and NO, the phagocytosis, the cytototicity and the antigen presenting activity of peritoneal macrophages from the mice immunized with MIF gene-modified tumor vaccine were all enhanced. Conclusion: The functional enhancement of macrophages is related to MIF secreted by MIF gene-modified tumor vaccine in vivo and the activation of macrophage may play an important role in the antitumor immune responses induced by MIF gene-modified tumor vaccine.

Objective To know the relative efficiency condition in some cardiovascular surgical ICU for the nursing administrator to allocate the nursing resources.Methods Used the C2R model and the G2GS2 model to evaluate the effeciency of nursing manpowers in 12 cardiovascular surgical ICUs.Results The percentage of decision-making unit was 75% from the aspect of pure technique.The inefficent units can achieve the same levels of effeciency as the efficiency units by altering their inputs.Conclusions The coexistence of insufficiency and lower effeiciency were found in the nursing resource utilization of some cardiovascular surgical ICU,with a DEA based approach,we are able to provide scientific basis for the resource allocation through identifying the level of nursing efficiency.

Objective To investigate the expression of scaffold protein palladin in pancreatic ductal adenocarcinoma (PDAC) tissues and to discuss its clinicopathological significance.Methods 56 samples of PDAC and corresponding adjacent normal pancreas (NP) tissues were collected.Another 10 samples of chronic pancreatitis (CP) tissues were collected.Western blot analysis and immunohistochemistry assay were performed to detect the expression of protein palladin.The correlation of palladin expression with clinicopathological factors of PDAC was analyzed.Results Western blot analysis revealed that the expression of palladin in PDAC,CP and NP tissues were respectively 0.93±0.07,0.41±0.07 and 0.20±0.06,and the expression of palladin was significantly increased in PDAC tissues compared with NP and CP tissues (P ＜ 0.05),and its expression was significantly increased in CP tissues compared with NP tissues (P ＜ 0.05).Immunohistochemical staining showed that palladin was mainly expressed in activated myofibroblasts in PDAC tissues.The rate of palladin expression was 79 ％ (44/56),which was higher than that in NP tissues (2/10) and CP tissues (4/10),and its expression was found to be correlated with the degree of tumor differentiation,lymph node metastasis and clinical TNM classification (P ＜ 0.05),and it had no correlation with patient' s sex,age,tumor location and distant metastasis (P ＞ 0.05).Conclusions Scaffold protein palladin is highly expressed in PDAC tissues,and it is expressed in the activated myofibroblasts within tumor microenvironment.Scaffold protein palladin may be involved in the invasion and metastasis of PDAC.

AIM: To observe pathomorphological changes in cerebral cortex and hippocampus in the mouse with synthetic vascular dementia. METHODS: The synthetic vascular dementia model was produced in the mouse. Animals were killed 7 d, 15 d, and 30 d after the operation, brain tissues were removed and embedded in paraffin. Section of 8?m thickness were stained with hematoxylin-eosin(HE) and Nissl methods, and observed with light microscope. RESULTS: The cerebral cortex in the mouse became thinner on the seventh day, karyopyknosis in partial nervous cells was formed, the number of local neurons was reduced, sieve structure was observed, and glial cells proliferated, with the similar results 15 d and 30 d after operation. Model mouses hippocampal cells in CA 1 area were reduced and almost disappeared 30 d after operation. At the same time, glial cells were abundantly proliferated, tubercles were formed. Cells in CA 2, CA 3 area were also reduced and hippocampal sclerosis occurred. CONCLUSION: Delayed necrosis of hippocampal pyramidal cells may be the pathological basis of ischemia cerebral vascular dementia.

Objective To investigate the effect of exogenous hydrogen sulfide (H 2 S) on H2 S concentration and cystathionine β-synthase (CBS) expression in hippocampus in a rat model of vascular dementia (VaD). Methods A rat model of VaD was induced by using the modified four -vessel occlusion. The rats were divided into sham operation, model, low -dose and high-dose NaHS groups using the random number table method. They were further redivided into one day, seven -day, and 30-day subgroups according to the time after modeling. After modeling respectively, NaHS 30 μmol/kg and 100 μmol/kg were injected intraperitoneally every day in the low -dose and high-dose NaHS groups. The normal saline was injected intraperitoneally every day in the sham operation group and the VaD model group. Morris water maze test was used to evaluate the learning and memory ability of the rats. The expression of CBS in hippocampus was detected by real-time fluorescent polymerase chain reaction. Western Blotting was used to detect expression of CBS protein in hippocampus. Results Morris water maze test showed that the escape latencies of the model group, low -dose and high-dose NaHS groups were prolonged significantly compared with the sham operation group (P <0.05); the times of crossing the platform were decreased significantly compared with the model group (P <0.05); and the escape latencies were shortened significantly in the low -dose and high-dose NaHS groups compared with the model group ( P <0.05). The H2 S content in hippocampus was decreased significantly in the model group, low -dose and high-dose NaHS groups compared with the sham operation group, but the low -dose and high-dose NaHS group was significantly higher than that in the model group (all P <0.05). The expression of CBS mRNA and protein in the model, low -dose and high-dose NaHS groups was significantly lower than that of the sham operation group (all P < 0.05), and there was no significant difference between the low -dose and high-dose NaHS groups and the model group. Conclusions Exogenous H2 S may improve the learning and memory ability of the VaD rats. It may be associated with the increased H2 S content in hippocampus. However, it has no effect on CBS expression.

Objective:To investigate the clinical efficacy of intramedullary nailing combined with bone cement in repair of segmental bone defects after tumor resection.Methods:A retrospective analysis was conducted of the 5 patients with malignant bone tumor who had been treated at Department of Orthopaedics, Qiannan People's Hospital from April 2018 to September 2019 for remaining segmental bone defects following limb salvage surgery. They were 4 males and one female, aged from 11 to 55 years (average, 35.4 years). Their defects ranged from 6 to 21 cm (average, 12.3 cm) after tumor resection. By the Karnofsky performance score (KPS) for long-term quality of life, all of them scored less than 50 points. Of them, 3 were treated by interlocking intramedullary nails and bone cement filling, and 2 by elastic intramedullary nails and bone cement filling. In the 2 cases with defects of 21 cm and 13 cm, the fixation was assisted by a plate and an external fixator. Defect length after resection, operation time and intraoperative bleeding were recorded; the efficacy was evaluated by the Enneking functional evaluation of reconstructive procedures after surgical treatment of tumors of the musculoskeletal system, visual analogue scale (VAS), and KPS.Results:All the 5 patients had uneventful surgery, with operation time ranging from 112 to 225 min (average, 154.2 min), intraoperative bleeding from 300 to 500 mL (average, 382 mL), and defect length after resection from 6 to 21 cm. The 5 patients were followed up for 6 to 28 months. Of them, 2 died of disease progression 6 and 7 months after surgery, respectively. According to the Enneking's evaluation, one patient scored 28 points, 2 patients 23 points and 2 patients 21 points, giving a high degree of satisfaction. Their VAS scores 6 months after surgery ranged from 1 to 6, averaging 3.6; their postoperative KPS scores ranged from 60 to 80, averaging 72.Conclusion:In repair of segmental bone defects after tumor resection, intramedullary nailing combined with bone cement filling can relieve pain of patients and lead to satisfactory short-term curative efficacy.

Objective: To investigate the role of T cell in the antitumor immune responses induced by MIF gene-modified tumor vaccine. Methods: MIF gene was transferred into FBL3 erythroleukemia cel l by adenovirus carrier and a new type of tumor vaccine was prepared. The chang es of the number and the function of T cell in spleen and lymph node was observe d. Results: After the mice were immunized with MIF gene-m odified FBL3 vaccine, the number of lymphocyte in spleens and lymph nodes increa sed markedly and the specific CTL activities of splenocytes also increased great ly. FACS analysis showed that the CD3+,　CD4+,　CD8+ T cells and CD28 posi tive cells in draining lymph nodes of MIF-FBL3 group mice increased more marked ly than that of control groups. When the wild type FBL3 cells were injected into the mice immunized with MIF gene-modified FBL3 vaccine, the growth of tumors w ere obviously inhibited and the survival rate of the mice was increased. Conclusion: It is suggested that MIF gene-modified tumor vaccine can induce specific antitumor immune responses mediated by T cells and may be a candidate for gene therapy of tumor.

Objective To investigate the role of psychotherapy plays in the treatment of vitiligo.Methods Psychological health questionnaire(SCL-90)was used in the study to evaluate the psychological well being of 120 vitiligo patients.66 subjects suffering from psychological problems were divided randomly into groups Ⅰand Ⅱ while 54 subjects free of psychological problems randomly into groups Ⅲ and Ⅳ.Psychotherapy was applied together with drug and phototherapy to those subjects from groups Ⅰ and Ⅲ while groups Ⅱ and Ⅳ having no psychotherapy accompanied.After 3 months of treatment,evaluation was done on the treatment effect with psychological testing once again.The correlation between the improvement of psychological conditions of the subjects and the lesion development was then evaluated by"P"value of the four groups.Results Significant difference was achieved between group Ⅰ and group I1I(P＜0.05).There was no significant difference between groupsⅢand IV(P＞0.05).There was significant difference between groups Ⅰ and Ⅱ.There was no significant difference between groups Ⅱ and Ⅳ.Conclusions The psychotherapy is helpful in improving the early treatment effect and quality of life in vitiligo patients.