B-cell specific moloney leukemia virus insertion site 1(Bmi-1)gene is a core member of the polycomb group genes,considered to be a proto-oncogene;Bmi-1 plays an important role in cell self-renewal, proliferation and apoptosis. Several studies have shown that Bmi-1 is highly expressed in non-small cell lung cancer;furthermore,the expression level of Bmi-1 is closely related to the occurrence,development,incursion and prognosis of non-small cell lung cancer. Bmi-1 is expected to become a novel tumor molecular marker,and provides a new direction for the treatment of non-small cell lung cancer.

With the deepening of the lung cancer molecular biology research,small molecular targets antitumor drugs make breakthrough progress,the epidermal growth factor receptor tyrosine kinase inhibitor (EGFR-TKI) is one of the most attention drug.A series studies show that EGFR-TKI can enhance the antitumor activity of ionizing radiation.Therefore,EGFR-TKI combined with radiotherapy alone for poor-risk patients appears survival benefit,but can't ignore the lung toxicity.However,there is a big contro-versy that EGFR-TKI combined with chemoradiotherapy for locally advanced NSCLC.

The paper reviewed basic concepts of corporate governance.Based on these concepts,the authors proposed the general strategy and practices for introducing corporate governance structure at the hospital,and stated key characteristics of such a structural reform,thus making worthwhile attempts to this direction.

Objective To evaluate the effect of Beijing' s separation of clinic from pharmacy reform.Methods Use difference-in-difference method based on dataset on patients having Urban Worker Medical Insurance from twelve state-owned hospitals.Results The reform incurs a decrease in the outpatient and inpatient expenditure on medicine per visit (30％ and 21％,respectively),a decline in hospital's pharmaceutical ratio (9 percentages and 4 percentages,respectively); reduces the outpatient and inpatient expenditure per visit (19 ％ and 8 ％,respectively),with a decrease in the out-of-pocket part (23％ and 3％,respectively),and a slight increase in the Medical Insurance's part (2％); raises hospital's turnover (11％),outpatient's visits (22％),and inpatient visits (43％).Conclusion The reform encourages physicians to prescribe more scientifically,and hence reduces patient 's expenditure on medicine and hospital's pharmaceutical ratio; leads to a decrease in patience' s expenditure per visit;raises hospital's turnover; and doesn't cause a significant increase in the expenditure from social medical insurance.

Studies confirm that gefitinib treatment of epidermal growth factor receptor(EGFR)muta-tions for patients with non-small cell lung cancer(NSCLC)has a clear effect,and with radiotherapy sensitiza-tion effect. Many studies both at home and abroad show that gefitinib combined with radiotherapy can signifi-cantly improve the survival times of patients,especially for the elderly patients or the patients with brain metas-tases,which has fewer adverse reactions and with higher life qualities. Therefore,gefitinib combined with radiotherapy will be an effective treatment for the patients with advanced NSCLC.

Objective To learn the clinicians'attitude towards the “Drug and Medical Service Separation” reform in Beijing.Methods A number of pilot hospitals of “Drug and Medical Service Separation” reform in Beijing were pinpointed,for a random questionnaires survey among 800 clinicians,to learn their awareness,evaluation and attitudes to the reform.Results The clinicians were found with good awareness and understanding of the reform,with an awareness rate of 99.5％ ; 72.0％ of them hold that the pricing of “medical service charge” of the reform as reasonable; most of them believe that the reform plays a positive role in relieving the difficulties of seeing doctors and affordability of medical treatment; their approval rate for the reform pilot project is 97.3％; their satisfaction for the reform implementation is 90.8％,and their support for full implementation of the reform is 94.0％.Conclusion The clinicians from those pilot hospitals are sufficiently aware of and understand this policy,and are supportive of the pilot with useful suggestions.The recommended strengthened publicity and training,higher medical service charges,better pay for medical workers,improved incentive mechanism and evaluation mechanism,and better clinicians' satisfaction.

Objective To observe the effect of cinobufotalin freeze-dry powder on heart rate ( HR ) and electrocardiogram ( ECG) of SD rats and to provide experimental basis for monitoring its adverse effect on heart in clinical application. Methods The drug was administered into external jugular vein at constant speed throughout the whole experiment;standard-Ⅱ limb lead monitored the HR and ECG, and then the changes in HR and ECG before and after administration of cinobufotalin were compared. Results Thirty minutes after administration of cinobufotalin injection and cinobufotalin freeze-dry powder at middle dose and high dose, HR of the rats was significantly increased as compared with blank control group[(469±40) bpm, (466±29) bpm and (484±40) bpm vs. (411±17) bpm] (P<0. 05), but soon afterwards, it returned to normal. A small number of rats also developed arrhythmia. In addition, administration of cinobufotalin significantly shortened the P-R interval[blank control group: (46. 90±3. 90) ms, cinobufotalin injection administration group: (39. 70± 2. 54) ms;middle dose of cnobufotalin freeze-dry powder administration group: (37. 70±3. 77) ms; high dose of cinobufotalin freeze-dry powder administration group:(39. 30±7. 12) ms] and Q-T interval[blank control group:(61. 29±9. 46) ms;middle dose of cinobufotalin freeze-dry powder administration group: (55. 13±4. 67) ms; high dose of cinobufotalin freeze-dry powder administration group:(51.75±11. 53) ms] (P<0. 05), but QRS and S-T were unchanged (P>0. 05). Conclusion Cinobufotalin freeze-dry powder has some side effects on rat heart and can increase HR, even lead to arrhythmia.

Granular cell tumor of the breast (GCTB) is a rare tumor which stems from Schwann cells.It is a largely benign tumor,but in the literature extremely infrequent cases can exhibit malignant characteristics.It tends to a particular problem as its characteristics are similar with breast carcinoma macroscopically,clinically,and radiologically.Typically,GCTB is benign and solitary lesion,yet including atypical GCTB and malignant GCTB,they can co-localize with breast malignancies multicentricity.The histopathological and immunohistochemical detection is the gold standard for diagnosis of GCTB up to now.And local expanded resection is the main treatment method at present.

Objective To build finite-element models of cerebral hemorrhage on which a simulation study of electrical impedance tomography(EIT) is based.Method With a kind of four-layer concentric circle model of head,finite-element method and dynamic NOSER algorithm are performed to reconstruct the images.Result As to the single-focus model of the cerebral hemorrhage,the focus can be clearly imaged,while to the several-focus model,the focuses can be imaged with vaguely adjacent boundaries.Conclusion The dynamic NOSER algorithm is an effective method to image cerebral hemorrhage in EIT.