Objective To discuss the relationship between matrix metalloproteinases 9 (MMP-9) and the pathogenesis of preeclampsia , birth weight and placental weight , through detecting the expression of MMPS-9 in the placenta of the patients with preeclampsia. Methods The levels of MMP-9 in the placenta were detected by immunohistochemical SP method in 60 patients with preeclampsia and 30 pregnancy women. Results (1) The optical density value of MMP-9 in preeclampsia group was lower than the control group , the optical density value of MMP-9 in SPE group was lower than the MPE group (P < 0.05). (2) The placenta weight and birth weight in preeclampsia group were lower than the control group , the placenta weight and birth weight in SPE group was lower than the MPE group (P < 0.05). (3) The expression level of MMP-9 were positively correlated with placental weight and birth weight (P < 0.05) in the control group. (4) The average optical density value of MMP-9 in neonatus with weight < 2 500 g was lower than neonatus with weight≥2 500 g (P < 0.05). Conclusion The MMP-9 in the placenta of patients with preeclampsia was down-regulated , and its expression was abate when the illness grew worse. The MMP-9 may be involved in the pathogenesis of preeclampsia , and it is associated with fetal growth restriction.

With the increased use of contrast agents, the incidence of contrast induced nephropathy has become the third most common cause of renal injury caused by the hospital, following renal hypoperfusion and renal toxicity. But its pathogenesis is not clear, and there is no specific treatment. Therefore, prevention is particularly important. The method of remote ischemic preconditioning is simple, noninvasive and effective, and should be the first method.

With the increased use of contrast agents, the incidence of contrast induced nephropathy has Contrast induced nephropathy has become the third most common cause of renal injury caused by the hospital , following renal hypoperfusion and renal toxicity. But its pathogenesis is not clear, and there is no specific treatment. Therefore, prevention is particularly important. Intravenous hydration is widely recognized as an effective method, but is not suitable for all the patients. More researches on the current drug prevention of contrast induced nephropathy provide possibility in individual prevention of contrast nephropathy.

Accidents, Occupational ; Acute Disease ; Aniline Compounds ; poisoning ; Humans ; Occupational Diseases

liver after i.v. administration. The distribution of osthole in blood and kidney were siginificantly higher( P

Objective To investigate the effects of various intensity of 1 Hz repetitive transcranial magnetic stimulation (rTMS) on up-per limbs motor function after stroke. Methods From December, 2014 to December, 2015, sixty patients with ischemic stroke were random-ly divided into high density group (HD, n=20), low density group (LD, n=20) and control group (n=20). They all received routine rehabilita-tion and medication. The HD group received rTMS over contralesional motor cortex twice a day, while the LD group received rTMS once a day, and the control group received sham stimulation, 10 minutes a time for 10 days. They were tested with motor-evoked potentials (MEPs), Fugl-Meyer Assessment (FMA) of upper limbs and modified Barthel Index (MBI) before and after treatment. Results The ampli-tude of MEPs of the affected cortex, the scores of FMA and MBI were more in HD and LD groups than in the control group after treatment (P<0.01), and were more in HD group than in LD group (P<0.01). No serious side-effect was found. Conclusion rTMS was feasible for pa-tients with stroke to improve the upper limbs motor function. It is more effective as more times a day.

Objective To evaluate the patient-controlled paravertebral block (PCPB) in optimizing the cellular immune function when used after radical resection of pulmonary carcinoma performed via video-assisted thoracoscope in patients.Methods Forty-one ASA physical status Ⅰ or Ⅱ patients of both sexes,aged 50-64 yr,with body mass index of 20-25 kg/m2,of TNM staging Ⅰ or Ⅱ,undergoing radical resection of pulmonary carcinoma performed via video-assisted thoracoscope,were randomly divided into 2 groups using a random number table:PCIA group (n =21) and PCPB group (n =20).PCIA solution contained sufentanil 2 μg/kg in 100 ml of normal saline.The PCIA pump was set up to deliver a 2 ml bolus dose with a 15-min lockout interval and background infusion at 2 ml/h.In PCPB group,the patients received paravertebral injection of 0.2％ ropivocaine 5 ml at T5 level on the affected side under ultrasound guidance at the end of operation,and then received PCPB.PCPB solution contained 0.75％ ropivacaine 67 ml in 250 ml of normal saline,and the pump was set up to deliver a 5 ml bolus dose,with a 15-min lockout interval and background infusion at 5 ml/h.VAS score was maintained ≤ 3,and analgesia lasted until 50 h after operation.Before induction of anesthesia (baseline),at end of operation,and at 1,3 and 5 days after operation,peripheral venous blood samples were collected to determine the levels of regulatory T cells,natural killer cells and natural killer T cells (by flow cytometry) and plasma concentrations of interleukin-10 and transforming growth factor-β (by ELISA).Results Compared with group PCIA,the level of regulatory T cells was significantly decreased,the levels of natural killer cells and natural killer T cells were increased,and the plasma concentrations of interleukin-10 and transforming growth factor-β were decreased at 1 and 3 days after operation,and no significant change was found in the rate of cellular immune function decline after operation in group PCPB.Conclusion PCPB provides no significant difference clinically in optimizing the cellular immune function when used after radical resection of pulmonary carcinoma performed via video-assisted thoracoscope in the patients.

Objective:To explore effect of relevant training on understanding of theory of naive biology for plant reproduction in 5- and 6-years old,and to attempt to provide demonstration for a debate of different views between domain universality and domain specificity cognitive development.Methods:48 preschoolers who did not comprehend concept of plant reproduction screened from 64 preschoolers ages 5 to 6 were surveyed by clinical method.Half of the 48 children were assigned to intervention group,the other to control group.The effects of intervention were compared by the experimental before-after design.Results:Relevant biological knowledge might widely accelerate 5- and 6-year-olds' understandings for plant reproduction,and 6-year-olds had more enhancement than 5-year-olds.Pass rates of intervention group were more 29.2% than control group in 5 year olds,and more 54.1% in 6 year olds.Conclusion:Acquiring specific knowledge will generally improve preschoolers' cognition on plant reproduction.Children' cognitive development is influenced jointly by both domain-specific and domain-general thinking.

Objective:To evaluate the value of adjuvant radiotherapy for stage Ⅱ endometrial cancer after surgery.Methods:40 patients with stage Ⅱ endometrial cancer with over five years follow up were analyzed vetrosectively.27 cases received subradical hysterectomy,and additional pelvic lymph node dissection in 13 cases.6 cases were treated with surgery alone.34 cases were treated with postoperative pelvic irradiation and additional vaginal brachytherapy in 12 cases.Results:The 5 year survival rate,pelvic failure rate and extrapelvic recurrence rate were 65%(26/40),17.5%(7/40),25%(10/40) repectively.The 5 year disease free survival rate,pelvic failure rate and extrapelvic recurrence rate were 70.5%(24/34),5.9%(2/34),29%(10/34) respectively in 34 patients with postoperative radiotherapy.5 cases with surgery alone recurrenced at the vaginal residual within two years.The late complications were 44%(15/34),including proctitis,cystitis and intestinal obstruction.Conclusion:Postoperative radiotherapy for stage Ⅱ endometrial cancer can improve the tumor local control and increase the late complications.

Objective: To develop parental punishment style the questionnaire. Methods: Based upon previous literature about parental punishment style and expert interview, data were collected for the parental punishment style questionnaire. A sample of 1028 junior high school students were asked to complete the questionnaire and 158 of them was given retest after a month. Results: Taken from the questionnaire by exploratory factor analysis four factors were compatible. The results of confirmatory factor analysis showed a good fit to the data. The internal consistency reliability of father and mother questionnaire was satisfactory, with Cronbach ? coefficient 0.91; and the test-retest reliability was also satisfactory, with test-retest correlation coefficient 0.88 and 0.89, which showed good content validity and high construct validity. Conclusion: The questionnaire has good reliability and validity, and meets the need of psychometrics.