Objective To study the mithridatism of VMAT 2 in transgeneic CHO cell.Methods Using technology of transgene from PC 12 to CHO, MTT reduction assay was used to detect the toxic effect on MPP + to wtCHO and cDNACHO,meanwhile the role of reserpine was observed,including the toxic effect to MPP + on specific blocking agent of VMAT 2.Results cDNACHO to the sensitivity of MPP + was much less than that of wtCHO over concentration of 0.5 mmol/L MPP +; cDNACHO had the same sensitive as wtCHO to rotenon;after the reserpine was added,the above role disappeared,but wtCHO reserpine was given alone,it couldn't change its sensitivity to MPP +.Conclusion VMAT 2 has protective effect on cDNACHO by transporting MPP + to vesicles; PC 12 possesses the antitoxic components.

Objective: To explore the application of sequential pattern mining to the field of mental health, and analyze the role of the courses in improving the crisis intervention skills of mental health service personnel. Methods: The learning log data recorded by the online learning platform was used for sequential pattern mining, and the activity map was used to visually analyze the learning paths of learners with different learning performances. Results: In each case study, the number of high-frequency sequences of learners with different learning performance had significant differences, which were high-performance group > medium-performance group > low-performance group. In the crisis intervention consultation learning process, the high-performance group learners had the most diverse learning paths; the medium-performance group lacked the mastery of the several specific steps of the six-step model of crisis intervention, and the learning path integrity was poor; the low-performance group did not have a complete learning path. Conclusion: Diversified crisis intervention strategies are conducive to the smooth progress of the consultation process. Learners with different learning performance should develop corresponding skills development strategies according to their learning characteristics.

Objective:To explore the effect of emotional intelligence on the behavioral performance in crisis intervention, taking the knowledge and skills learning performance of crisis intervention as the mediating variable. Methods:Based on the sequential pattern analysis and comprehensive evaluation of learning performance in the previous study, Emotional Intelligence Scale was used to collect the emotional intelligence of 104 mental health service personnel. The mediating effect model was used to analyze the relationship among personal traits, learning performance and behavior performance. Results:There was no direct correlation between emotional intelligence and behavior performance (r=-0.016, P=0.869). The knowledge and skills learning performance of crisis intervention in identifying problems, providing support and coping strategy played a complete mediating role between emotional intelligence and behavior, with indirect effects of a1b1=-0.052 (P=0.010, 95% CI -0.126 - -0.010), a2b2=0.139 (P=0.000, 95% CI 0.063 - 0.259), and a3b3=0.087 (P=0.012, 95% CI 0.019 - 0.186). Conclusion:Emotional intelligence interferes in behavioral pattern by affecting crisis intervention learning performance, but influence relationships are inconsistent.

Objective • To exploring effect of the online situated courses which were developed based on the six-step model of crisis intervention on improving the crisis intervention skills. Methods • A total of 118 learners were recruited to receive online course training to improve their crisis intervention skills. Two types of courses were prepared, which were situated interactive course and non-interactive course for situated group and control group respectively. The changes in crisis intervention skills were compared between the two groups of learners before and after learning. The effects of situated learning were evaluated comprehensively from diagnostic evaluation, formative evaluation and summative evaluation. Results • After learning, the scores of crisis intervention skills of both groups were significantly improved (Psituated=0.000, Pcontrol=0.002). And the improved score of crisis intervention skills of situated group was higher than that of control group (P=0.010). The results of comprehensive evaluation showed that the well-mastered crisis intervention skills were identifying problem, providing support and getting commitment, the scores of which were 31.52±4.43, 16.85±4.44 and 14.63±5.27, respectively. Conversely both confirming safety and formulating plan skills should be reinforced, the scores of which were 10.26±3.93 and 5.84±4.10, respectively. Conclusion • The online course has a significant effect on improving the crisis intervention skills of learners, and the situated interactive course is more effective than the non-interactive course.

As the uses of dental implants are prevailing, the need for sinus bone graft is increasing. Deproteinized bovine bone mineral (DBBM) was not mentioned in 1996 Sinus Bone Graft because of the deficit of the available data. Since then, many clinical and laboratory reports support the use of DBBM in the sinus bone graft procedure. In this report, the histological and clinical successes of sinus bone grafting with DBBM is discussed with available literatures. After sinus bone grafts with DBBM, the proportion of new bone formed was similar or superior to natural maxillary posterior alveolar bone after healing period of 6 months to 1 year. It seems that the grafted DBBM is not be either resorbed nor replaced with bone, but this may not disturb the osseointegration of dental implants installed into it. The clinical survival rates of dental implants installed on the sinus grafted with DBBM was similar to those installed on the ungrafted posterior maxillary alveolar ridge or grafted with autogenous bone. So, it can be concluded that DBBM can be used successfully in the sinus bone graft.
Alveolar Process ; Bone Transplantation ; Dental Implants ; Heterografts ; Maxillary Sinus ; Osseointegration ; Survival Rate ; Transplants*

Experimental investigations were conducted on the process of combustion and explosion vent in a 200 mm (diameter)×400 mm (length) vertical cylindrical vessel. When CH4-air mixture gases were used and the vent diameter was 55 mm,conditions of φ (equivalent ratio)=0.8, φ=1.0 and φ=1.3 and two ignition positions (at the cylinder center and bottom) were selected. The venting processes and the correlated factors are discussed in this paper.

Evaluation of inadevertent dural puncture occuring among 308 epidural blocks done for the relief of pain from various conditions was performed. Dural puncture was suspected in 5 out of 308 eqidural bloks(1.6%). Aspiration of CSF was negative 3 cases in which dural puncture was suspected only after developing spinal anesthesia. Of the 3 negative CSF aspirations, one case had a history of laminectomy. Adhesions of the adjacent tissues might result in the loss of flexibility and a decreases in potential epidural space which might cause dural tearing during injection and subarachoid injection of the local anesthetic followed by high spinal anesthesia. In another case, the needle tip was obstructed by tissue which led to negative aspiration of CSF and failure to feel loss of resistance. The second injection at the same site many cause subarachonold injection of the local anesthetic through the previously perforated dura mater and in turn, lead to spinal anesthesia. In the last case, there was no reason to suspect dural puncture since the loss of resistance plus air rebound were definite and aspiration of CSF was negative, but dural puncture was suspected after the patient developed spinal anesthesia.
Anesthesia, Spinal ; Aspirations (Psychology) ; Dura Mater ; Epidural Space ; Humans ; Laminectomy ; Needles ; Pliability ; Punctures*

Objective To study the mechanism of marcosomia by investigating insulin-like growth factor 2(IGF_2)imprinting status,expression level and the promoter usage in the placenta of macrosomia. Methods We selected heterozygous cases for Apa Ⅰ polymorphism in exon 9 of IGF_2 gene and then analyzed its imprinting status in 168 placentas of macrosomia and normal pregnancies.IGF_2 transcription levels and promoter usages in macrosomic and normal placenta were evaluated by using semi-quantitative RT- PCR assay.Results Thirty specimens of macrosomic placenta and 30 of normal placenta were identified as heterozygous for IGF_2.All of the heterozygous specimens showed maintenance of imprinting.The expression of placental IGF_2 mRNA(2.2?1.2)was significantly higher in macrosomia than that of normal weight group (1.6?0.6,P 0.05).Conclusion It is possible that over expression of IGF_2 in placenta contributes to macrosomia while the promoter usage and imprinting status are not associated with macrosomia.

Objective To analyze the results of diagnostic pars plana vitrectomy (PPV) in patients with uveitis of unknown cause.Methods This is a retrospective case series study.Sixty-five patients (67 eyes) with uveitis of unknown cause were enrolled in this study.There were 31 males (32 eyes) and 34 females (35 eyes).The ages were from 6 to 84 years,with the mean age of (55.00± 18.56) years.All eyes were received PPV.Examination of vitreous samples consisted of microbial stains and culture,microbial DNA and antibody detection,cytokine measurement,cytology,flow cytometry and gene rearrangement detection.Results Vitreous analysis was positive in 40 of 67 eyes (59.7％).Positive results indicated bacterial endophthalmitis in 20 of 40 eyes (50.0％),lymphoma in 11 eyes (27.5％),viral IgM and IgG increased significantly in 3 eyes (7.5％),fungal endophthalmitis in 3 eyes (7.5％),IgG of toxocara increased significantly in 2 eyes (5.0％),IgG of toxoplasma Gondii increased significantly in 1 eye (2.5％).Conclusion The diagnostic yield of vitreous samples in uveitis eyes of unknown cause is 59.7％.