As a core element of the Confucianism,mind-nature theory is full of the essence of Confucian mor-al education and has a profound influence on the Chinese national morality education.Confucianism mind-nature theory which takes Confucius and Mencius as representatives,after the continuous development of the future genera-tions,has been formed a complete ideological system.Confucianism mind-nature theory highly affirms the values of moral and unifies the values of life and moral.This article,by exploring the moral resources of Confucianism mind-nature theory,rethinks the ideas of contemporary ethics education and expounds how to enhance the effect of medical ethics education.

Objective To investigate the effect of argenin-glycin-aspartic acid (RGD) peptides on islet viability and function. Methods Rats were randomly divided into 2 groups: 1640 group and RGD group. Ficoll was used to purify islet in a discontinuous-density-gradient way. Islet concentration is 27% ,25% ,23% ,20.5% and 11% respectively. Acridine orange/ethidium bromide(AO/EB) fluorescent staining method was adopted to observe the effect of RGD peptides on islet viability. Radioimmunoassay was adopted to detect insulin level and measure insulin secretion index (SI). Caspase-9 cells and phospho-Akt 473-positive cells were determined by flow cytometry to investigate the influence of RGD peptides on caspase-9 activity and Akt. Results 600-700 IEQ islet was extracted from each rat by Ficoll purification through modified gradient centrifugation. AO/EB stain showed islet survival rate was more than 95% immediately after separation. Islets cultured in the medium of RPMI-1640 showed SI of 1.64 ±0.28 after 1 week, while islets cultured in the medium of RPMI-1640 containing RGD peptides showed SI of 2.28 ± 0.16 (P ＜ 0.05 ). Flow cytometry showed the level of activated caspase-9 was ( 22.66 ± 3.56 ) % if islet was cultured in RPMI-1640 alone for 1 week while the level was( 10.54 ± 1.96) % if islet was cultured in RPMI-1640 containing RGD peptides. There was statistical difference ( P ＜ 0. 05 ). The effect of RGD on Akt phosphorylation was also detected. Akt phosphorylation proportion was (31.47 ±4.08)% 1 week after cultured in RPMI-1640 while the value was(61. 054 ±6.03)% if cultured in RPMI-1640 containing RGD peptides. The difference had statistical significance (P ＜ 0. 05). Conclusion RGD peptides could inhibit apoptosis through the phosphorylation of Akt/PKB.

[Objective]To explore the effect of continuous physiological osteogenic stress on the bone healing of canine iliopectineal crest.[Method]Ten adult mixed breed dogs without significant individual difference were made transverse fracture at bilateral iliopectineal crest 1.5 cm above the dome of acetabulum,which were fixed with ATMFS or steel plate respectively. The animals were sacrificed and specimens were procured at 2,4,6,8 and 12 weeks after operation.Samples from the fracture gaps were investigated by histology of HE and Masson staining,image pattern analysis of new bone formation.[Result]The formation of cartilaginous tissue and the maturity of cortical and trabecular bone and collagen fibers of ATMFS sides were earlier than that of steel sides obviously.There was significant difference of the integrated optical density (IOD) of new bone formation between two groups (P

Objective To introduce a new technique for treatment acetabular fractures with nitinol tridimensional internal fixation system. Methods According to the characteristics of nitinol and acetabular anatomy, a new internal fixation system for acetabular fracture, acetabular tridimensional memoryalloy-fixation system (ATMFS), was designed. This system consisted of anterior column, posterior column, arch teeth and trochanter device. During operation, these devices were transformed in iced water first, after fracture reduction they were inserted into bones, finally, these devices were reverted to their original shape by warm saline. Till October 2001, 41 cases acetabular fractures were treated with this system. All these cases were followed from 6 to 28 months. Results This system could transform the complicated and comminuted fracture to its anatomic position, and was easy to use in operation. Bone healing time averaged 1.6 months in 38 cases, and the hip function recovered time averaged 2.5 months. Heterotopic ossification which led to joint functional disturbance in one case, and myositis ossificans which caused joint dysfunction in two cases. One case was complicated by infection which was cured and good function was reserved. Conclusion ATMFS provides a new and efficacious method for the anatomic reduction or reconstruction of comminuted acetabular fractures.

Objective To investigate the clinical effect of arthroscopic debridement combined with patellofemoral peripheral denervated operation in treating patellofemoral arthritis.Methods One hundred cases of patellofemoral arthritis anterior knee pain in this hospital from January 2014 to September 2015 were selected and randomly divided into the observation group and control group,50 cases in each group.The control group was given the arthroscopic debridement treatment,while the observation group was given the arthroscopic debridement combined with patellofemoral peripheral denervated operation.The visual analogue scale (VAS) before and after treatment,and Lysholm and Kujala scores after treatment were compared between the two groups.Results There was no statistically significant difference in the VAS score before treatment between the two groups (P＞0.05).After treatment,the VAS score in the two groups were significantly decreased,moreover the VAS score in the observation group was lower than that of the control group (P＜0.05).After treatment,the Lysholm scores in the observation group and the control group were (80.93±4.21) points and (74.29±4.48) points,the knee Lysholm scores of claudication,joint noose,bearing weight,pain,instability,up and down stairs,jump,run,joint swollen and pain,squats were significantly better than those in the control group (P＜0.05);aftertreatment,the Kujala total score in the observation group and the control group were (76.48±6.54) points and (68.34-±-6.22) points respectively,the Kujala scores of claudication,walking distance,bearing weight,squat,up and down stairs,jumping,running,knee pain,long time kneebend,abnormal patellofemoral activity,anterior knee swelling,knee bending limitation,thigh muscle atrophy in the observation group were significantly better than those in the control group(P＜0.05).Conclusion Arthroscopic debridement combined with patellofemoral peripheral denervation surgery in the treatment of patellofemoral osteoarthritis can obviously relieve pain and improves the knee function and patellofemoral joint function.

Objective To investigate the role of neutrophils and protease inhibitor in the pathogenesis of hepatic ischemia reperfusion injury. Methods The models of liver ischemia reperfusion (LIR) and orthotopic liver transplantation (OLT) were established in rats. The contents of serum ALT and LDH and liver myeloperoxidase(MPO) were determined. Meanwhile, the hepatic pathohistological changes were observed and the number of infiltrating neutrophils counted. As for the LIR model, the animals were administered with aprotinin (AP) before ischemia. Then reperfusion was achieved 45 min after ischemia. The samples were collected after reperfusion for 4 h. In OLT model, the animals were administered with AP 1 h before the transplantation and the samples were collected 4 h postoperatively. Results The contents of serum ALT and LDH and liver MPO were significantly higher in the control group than in the experimental one (P

Objective To understand the indoor air pollution caused by smoking and the influencing factors.Methods On the different time after and before smoking,the concentrations of carbon monoxide(CO),inhalabe particle(IP),formaldehyde,total volatile organic compounds(TVOC) in the air in an office were determined,the influence factors such as ventilated conditions and the number of smokers were investigated.Results When the windows and doors were closed,the concentrations of indoor air pollutants at the different time after smoking in the office were obviously higher than those without smoking,and formaldehyde and TVOC still exceeded the standard limit after 3 hours.When the windows and doors were opened,the concentrations of indoor air pollutants after smoking increased obviously,but decreased to the level of no smoking about 30 minutes later.When the windows and doors were opened,the peak values of the indoor air pollutants resulted by smoking were obviously lower than those when the windows and doors were closed.The peak values of the pollutants were positively related to the number of smokers. Conclusion Indoor air pollution caused by smoking is serious.Ventilation can reduce the indoor air pollution effectively.

Objective To investigate the variability of katG gene in Mycobacterium tuberculosis strains isolated in China,and screen the new isoniazid resistance related mutation sites meanwhile. Methods 429 clinical Mycobacterium tuberculosis isolates were included in our research.PCR-RFLP method was applied to screen for the S315T mutation firstly.Whole katG gene sequencing was done in those resistant strains without S315T mutation to explore the unknown mutated sites associated with isoniazid resistance.Results S315 mutation were found in 76.9% (166/216)resistant stains. Complete or part deletion of katG gene was detected in 2 highly-resistant isolates.Sequencing in 48 resistant strains showed that 315,463 and 234 sites were the most frequent mutation sites,other sites were also found but distributed dispersedly with low prevalence rate as less than 5%.Besides S315T, S315N were also common in China (8.7%).The most common variation is still site mutation.Con- clusions The results from the study of genotypes associated with most common clinical resistant phe notypes can be helpful to develop new methods to detect the resistant M.tuberculosis.

Objective:To examine the sodium-hydrogen exchanger(NHE-1) m RNA expression in lung of patients with congenital heart disease,and to explain the cause of pulmonary vascular remodeling.Methods:Twenty-two patients with congenital heart disease were divided into 2 groups:non-pulmonary-hypertension group(s PAP

Objective To develop a new Multiplex Allele-Specific polymerase chain reaction(MAS-PCR) assay to detect the main point mutations in the katG and rpoB genes, which has been reported to account for the majority of clinical Mycobaterium tuberculosis resistant to isoniazid and rifampin. Methods Based on the sequences of katG and rpoB genes, specific primers were designed to carry out the MAS-PCR to detect the most common mutations in codon315 of katG and codons 531,526,516 of rpoB gene. Results The purified DNA preparation of 96 clinical Mycobacterium tuberculosis strains were used to optimize PCR. No mutation was detected in 19 isoniazid-sensitive strains. The 315Ser point mutation was detected in 79.2%(61/77)of isoniazid-resistant strains, the type of mutation includes the most common S315T and the less common S315N, which could’t be detected by PCR-RFLP(polymerase chain reaction-restriction fragment length polymorphism). However, S315G couldn’t be detected by MAS-PCR and that will make a false negative. The mutations in codons 531,526,516 were detected by the MAS-PCR. Compared with the results of direct sequencing of rpoB gene, no mutation was detected in sensitive strains. For rifampin-resistant strains, the total sensitivity was 81.5%(66/81). Conclusions MAS-PCR is a new molecular method with high sensitivity and specificity, which can be used to detect the point mutation in katG and rpoB gene rapidly and economically. It can be used in clinical laboratories to detect drug-resistant tuberculosis strains. Simultaneous detection for katG and rpoB gene mutations in one MAS-PCR system will help to improve the efficiency of this method.