K-ras gene is one of oncogenes in non-small cell lung cancer,and it can promote tumor cells growth after mutations by several signaling pathways.K-ras mutations frequently occur in lung adenocarcinoma patients with smoking history.In the present study,K-ras mutations are associated with resistence to targated therapy and may be a marker of poor prognosis in patients with non-small cell lung cancer.

Spinal cord injury is a common clinical disease .Cell apoptosis is one of important pathogeneses for spinal cord in-jury, and apoptotic gene plays a very important role in apoptosis on spinal cord injury .Chinese medicine for blood-activating and stasis-dissolving has a good therapeutic effect for spinal cord injury by reducing inflammation , inhibiting apoptosis and improving microcircu-lation.In this paper, we review the research of chinese medicine for activating blood and resolving stasis during the regulation of apoto -sis gene in spinal cord injury based on related documents in the recent five years .

Objective To evaluate the influence of ProTaper rotary nickel-titanium files root preparation on root canal filling . Methods 30 cases of molars pulpitis and 20 cases of premolars pulpitis or periapical periodontitis were equally divided into two groups .The group A(30 cases) used the ProTaper rotary nickel-titanium files in root canal preparation and the group B (30 cases) adopted the common K files modified step-back technique for root canal preparation .The influence of the root preparation by 2 sets of apparatus on the effect of root canal filling ,and the several aspects of the root canal filling time ,the matching degree of main root canal file and master gutta-percha ,proper filling rate ,postoperative reaction of root canal filling were compared for conducting the e-valuation .Results In the mean root canal filling time of the group A ,average premolar time was 4 min 25 s and molar was 1 min 30 s ,however in the group B ,average premolar was 5 min 30 s and molar was 11 min 41 s ,the time in the group A was greatly short-ened with statistical difference(P<0 .05);the matching degree of main root canal file and master gutta-percha in the group A was 86 .37% for premolar and 88 .89% for molar ,however in the B group ,which was 62 .50% for premolar and 26 .67% for molar ,the matching degree in the group A was greatly improved with statistical difference between them (P<0 .05);the proper filling rate of upper premolar from the X-ray film was 72 .73% in the group A and 70 .83% in the group B ,while which of molar was 80 .0% in the group A and 77 .78% in the group B ,here was no statistical difference between them (P>0 .05);the postoperative pain reaction of root canal filling in both groups were very low and weak without statistical difference .Conclusion The ProTaper rotary nickel-titanium files root preparation can accelerate the root canal filling speed ,improve the matching degree of main root canal files and master gutta-percha and simplify the root-filling therapy procedure .

Objective: To investigate prognostic factors of survival of lung adenocarcinoma patients with brain metasta-ses.Methods: The clinical data of 109 lung adenocarcinoma patients with brain metastases were reviewed.Fifty-senven pa-tients survived more than 1 year, and 52 patients survived less than 1 year.The data were analyzed by SPSS 15.0 statisti-cal software.Results: Both the univariate analysis and multivariate analysis showed that patients' PS score, the interval be-tween diagnosis and brain metastasis, and multimodality treatment were independent prognostic factors for the survival of lung adenocarcinoma patients with brain metastases (P<0.05).Patients' gender, age, metastatic symptoms and extracrani-al metastases didn't significantly affect patient survival.Conclusion: Patients with PS score 0-1, the interval of more than 1 year between diagnosis and brain metastasis, and combined therapy have longer survival.The research provides an impor-tant guidance for the treatment of advanced lung adenocarcinoma patients with brain metastases.

Laparoscopic hepatectomy has been utilized in clinic,however to some extent there are some limitations for various equipments being used in laparoscopic hepatectomy, as a result, the laparoscopic bepa-tectomy is being constrainted on its development. Therefore, with the research and development of the ideal tool for laparoscopic hepatectomy,laparoscopic liver surgery is bound to be booming.

For the cultivation of medical students medical professionalism and evaluation has become a hot is-sue in the medical colleges medical education at home and abroad, but for junior medical students′professional spirit evaluation research is less.This paper introduces the basic concept of responsibility index and application by introducing foreign medical schools responsibility index for evaluation in school doctor students physician profession-alism, analysis the advantages and disadvantages of the method.Think the responsibility index is based on the spe-cific behavior evaluation, the result is more accurate, is suitable for junior medical students′professional spirit e-valuation system, compared with other evaluation system, responsibility index, pay more attention to guidance and specification in advance.But responsibility index also has some disadvantages.Such as responsibility index evalua-tion process must face some ethical challenges, lack of integrity and evaluation framework design.

BACKGROUND:Moderate to severe burn and trauma, treatment of which has been paid equal attention to wound surface, is always a difficulty of clinical systemic treatment and has a poor prognosis. Anabolic hormones have acquired secure and good results in the treatment of burns in both animals and clinical patients. Although use of anabolic hormones is restricted by the doping management, but its androgen receptor and nuclear receptor coregulators are the newly emerging areas of interests in the field of gene regulation mechanism in recent years. OBJECTIVE:To investigate the effect of nandrolone phenylpropionate on androgen receptor-mediated transcriptional regulation of target gene in rat scald models. METHODS: Thirty-six rats were randomly divided into nandrolone phenylpropionate, model and control groups. In the nandrolone phenylpropionate and model groups, rats were subjected to a 20% total body surface area second-degree scald injury by hot water. Two days after model preparation, rats in these two groups were intramuscularly injected with nandrolone phenylpropionate and saline, once every other day, for a total of 21 days. RESULTS AND CONCLUSION:The gene expression levels of steroid receptor coactivator-1 and insulin-like growth factor 1 in the rat livers and gonads (testes, ovaries) were significantly different between the nandrolone phenylpropionate and model groups (P < 0.05), except steroid receptor coactivator-1 in the liver. There were no significant differences in steroid receptor coactivator-1, c-myc and insulin-like growth factor 1 in the rat livers and gonads (testes, ovaries) between model and control groups (P < 0.05). The results demonstrate that nandrolone phenylpropionate has different effects on the gene expression of steroid receptor coactivator-1, c-myc and insulin-like growth factor 1 in different tissues under different physiological and pathological conditions.

Objective To investigate the predictive value of serum histone deacetylase 3(HDAC3) ,cystatin C(CysC) and albu‐min levels on a large area of myocardial infarction .Methods According to whether heart failure and (or) cardiogenic shock occur‐ring during hospitalization ,102 patients with acute myocardial infarction(AMI) were divided into the two groups :the non - compli‐cating heart failure and (or) cardiogenic shock group(n= 63) and the complicating heart failure and (or) cardiogenic shock group(n= 39) .Then according to whether the creatine kinase(CK‐MB) peak value was greater than 200 IU /L ,102 AMI patients were di‐vided into two groups :CK‐MB peak values ≥ 200 IU /L group(n= 58) and the CK‐MB peak values < 200 IU / L group(n= 44) .The serum HDAC3 ,CysC and albumin levels were detected at early morning on 2 d of admission in all patients .Results Compared with the non - complicating heart failure and (or) cardiogenic shock group ,serum HDAC3 and CysC levels in the the complicating heart failure and (or) cardiogenic shock group were significantly increased(P< 0 .01) ,while serum albumin protein level was significantly in the occurrence of heart failure and(or)cardiogenic shock group .Compared with the CK‐MB peak value < 200 IU /L group ,serum HDAC3 and CysC levels in the CK‐MB peak value > 200 IU /L group were significantly increased (P< 0 .01) ,while serum albumin level was significantly decreased(P< 0 .01) .Conclusion Serum HDAC3 ,CysC and albumin levels have certain predictive value on a large area of myocardial infarction and conduce to judge the prognosis of patients .

Objective To evaluate the relationship between thyroid autoantibodies (ATA)and pregnancy outcome of infertility women after assisted reproductive technology (ART). Methods Relevant studies were identified by searching PubMed, Cochrane library, CNKI and CBM. Results 7 studies were appropriate for meta-analyses and total 4165 patiens were included. Meta analysis shows that the pregnancy rate difference between ATA positive patients and controls have no significance, but the miscarriage rate is greater significant between them. In the meta-analyses, the presence of thyroid antibodies was associated with an increased risk of miscarriage (OR 1.85, 95%CI 1.32~2.59), compared with the absence of thyroid antibodies. Conclusion Pregnant women with thyroid antibodies have an increased risk of complications, especially miscarriage. Future research,should focus on the treatment and thyroid disease on pregnancy outcome.

Along with the fast development of medical technology,the theory of holistic medical care is infiltrated into every aspect of clinical medical practices.In this paper,though the treatment of surgical hepatobiliary diseases under the direction of holistic medical care ,we emphasize the significance of holistic medical care in diagnosis and treatment ,recommend and canonize the usage of holistic medical care into the clinical practices.