Objective To investigate the expression of LKB1 and p53 in human gastric tissues and their correlation with clinical pathological factors.Methods The expression of LKB1 and p53 in 115 cases of gastric carcinoma and 20 cases of normal gastric tissues were detected by immunohistochemistry method,and the relation between the expression and the clinicopathological parameter of gastric carcinoma was analyzed.Results The positive rates of LKB1 in gastric carcinoma and normal tissues were 20.9 ％ (24/115) and 95.0 ％ (19/20),respectively (P ＜ 0.01).The positive rates of p53 in gastric carcinoma and normal tissues were 45.2 ％ (52/115) and 5.00 ％ (1/20),respectively (P ＜ 0.05).The analysis revealed that the high expression of LBK1 was associated with tumor lymph node metastasis,stage,Lauren classification and worse survival (P ＜ 0.05).The expression of p53 was associated with tumor lymph node metastasis,stage,distant metastasis and worse survival (P ＜ 0.05).Conclusions LKB1 protein expression may play an important role in the development and progression of gastric cancer.LKB1 may be used to assess the malignant biological behavior and prognosis of gastric cancer.

Objective To analyze allocation of health resources and utilization of health services,and evaluate the equity of health resources allocation and health services utilization.Methods Concentration curve and concentration index(CI)were used to evaluate the equity of health resources allocation in terms of health professionals,hospital beds,medical institutions,outpatient visits and hospitalizations in China.Results The CI for health professionals,hospital beds,and medical institutions is 0.038,-0.012,and-0.116 respectively.That for outpatient visits and hospitalizations is 0.111 and -0.023 respectively.Conclusion Health resources allocation in hospital beds and health professionals is fair,while the equity of medical institutions and outpatient service utilization needs to be improved.

Objective To evaluate the efficiency of health resources allocation of 31 provinces,autonomous regions and cities in China in 2011,identify the causes for low allocation efficiency and provide suggestions accordingly.Methods By ways of literature research and data envelopment analysis.Results The average efficiency value of these provinces and cities was 0.973.The health resources allocation of 18 provinces and cities were found efficient in general,and that of the other provinces and cities were found non-efficient.They respectively account for 58.1 ％and 41.9％.Conclusion To improve the efficiency of health resources allocation of the 13 provinces and cities,their policymakers should increase government funding support,attract private capital into medical institutions,optimize health investment scale,improve medical management and foster medical and health personnel development.

Background and purpose:The expression of ERβin triple negative breast cancer(TNBC) might be associated with good prognosis in TNBC patients. ERβand ERαhave considerable homology. FOXA1 plays an important role in ERαexpression and function. The aim of this study was to analyze the expression of FOXA1 and ERβin TNBC and the relationship between them and the clinicopathologic characteristics and prognosis. Methods:The breast cancer samples in Peking Union Medical College Hospital were collected from Nov. in 2011 to Dec. in 2013, and TNBC were screened out based on the expression of ERα, PR and HER-2. Thirty ERβ-negative samples and 30 ERβ-positive samples were selected randomly according to the ERβexpression. We used immunohistochemical method to detect the expression of FOXA1. Finally, 48 TNBC samples were obtained to analyze the results. Results:The total positive rate of FOXA1 was 35.4%(17/48). In the ERβ-positive group, the positive rate of FOXA1 was 35.7%(10/28),and in the ERβ-negative group, the positive rate of FOXA1 was 35% (7/20). The expression of FOXA1 in these 2 groups had no signiifcant difference (P=0.83), which indicated that there was no relation between ERβand FOXA1. The FOXA1 positive group and FOXA1 negative group also showed no signiifcant difference in age, tumor size, and lymphatic metastasis number in axilla, tumor grade, tumor stage, NPI and DFS. However, Ki-67 showed negative correlation with FOXA1 expression (P<0.01). Conclusion:FOXA1 expression had no relationship with ERβexpression in TNBC. Ki-67 showed negative correlation with FOXA1 expression, which might hint that the proliferation of tumor cell was lower in FOXA1 positive TNBC.

Objective:To investigate the characteristics of polypoidal lesions and abnormal branching vascular network (BVN) in patients with polypoidal choroidal vasculopathy (PCV) by optical coherence tomography angiography (OCTA).Methods:A case series study was conducted.Untreated 45 eyes of 42 patients with initial diagnosis of PCV from May 2016 to April 2017 in Peking Union Medical College Hospital were enrolled.There were 26 males (27 eyes) and 16 females (18 eyes) with the average age of (68.59±8.52) years.All patients underwent fundus fluorescein angiography (FFA), indocyanine green angiography (ICGA) and OCTA.The OCTA image features and detection rate of polypoidal lesion and BVN were analyzed.The study protocol was approved by the Ethics Committee of Peking Union Medical College Hospital (No.S-K631). Written informed consent was obtained from each patient prior to any examination.Results:ICGA images showed obvious polyps with higper fluorescence in all PCV patients, and BVN structure was observed in the ICGA images of 38 eyes.Ring, circle, cluster or node like hyper-reflective structures were detected in polypoidal lesions in the en face OCTA images of 35 eyes, and the detection rate was 77.8% (35/45). The BVN structure was detected in the OCTA images of all the 38 eyes, with the 100% (38/38) detection rate.Conclusion:OCTA can detect polypoidal lesions and BVN of PCV non-invasively, which can locate the lesion in combination with en face image and B-scan image.

Objective To observe the effect of Yiqixue Buganshen Recipes(YBR), the compound recipes of Chinese herbal medicine with the actions of replenishing Qi and blood and tonifying liver and kidney, on the endometrial integrin β3 of the mice with embryo implantation dysfunction, and to explore the molecular mechanism of YBR in improving embryo implantation. Methods Ninety mice were divided normal group, model group, and YBR group, 30 mice in each group. YBR group was given Jinghou Zengzhi granules 8mg/kg for promoting post-menstruation proliferation and Cuhuangti granules 8mg/kg for promoting the formation of corpora luteum. At 8∶00 am of pregnant day 4 (Pd4), subcutaneous injection of mifepristone was used for inducing embryo implantation dysfunction in the model group and YBR group. Twenty mice from each group were executed 12 hours after subcutaneous injection of mifepristone, and the uterus was isolated for the detection of mice endometrial integrin β3 mRNA and protein expression with real-time RT-PCR and Western blotting method respectively. Ten mice from each group at Pd4 were executed, and the uterus was isolated and then fixed in 2.5% glutaraldehyde solution for the detection of the formation of pinopode in mice endometrium under scanning electron microscope. Results The detection by real-time PCR and Western blotting method revealed that integrinβ3 mRNA and protein expression levels of the model group were significantly lower than those of the normal group (P<0.05), and YBR group had higher integrin β3 mRNA and protein expression levels than the model group(P<0.05). The formation of pinopodes in the model group was less than the normal group and YBR group, but the number of formed pinopodes in YBR group was similar to that in the normal group. Conclusion YBR can up-regulate the expression of integrin β3 in the endometrium of mice with embryo implantation dysfunction, and have positive regulatory effect on the formation of pinopodes on Pd4.

Objectives Todynamicallyobservethechangesofhemodynamicparametersinpatients with severe stenosis of unilateral middle cerebral artery (MCA)by transcranial Doppler ultrasound (TCD) andtoevaluateandanalyzetherelatedfactorsforinfluencingthestenoticprocess.Methods Atotalof 113 consecutive patients with severe stenosis of unilateral MCA screened by TCD and confirmed by computed tomography angiography (CTA)and digital subtraction angiography (DSA)were enrolled retrospectively. They were divided into either a progressive group (n =43 )or a non-progressive group (n=90)according to the variation of MCA hemodynamic parameters. The effects of age,sex,major risk factors for cerebrovascular disease,clinical symptoms,clinical medication,and drug compliance on the stenotic process were documented and analyzed. Results (1)The comparison of detection rate of the risk factors for cerebrovascular disease:The patients with a history of smoking (72. 1%[n=31])in the progressive group was significantly higher than that (51. 1%[n=46])in the non-progressive group (P=0.022). The period of smoking of the patients in the progressive group were longer than that in the non-progressive group (28 ± 12 years vs. 21 ± 10 years,P=0. 011). (2)Comparison of MCA hemodynamic parameters:The distal pulsatility indexes of MCA stenosis at the first diagnosis in the progressive group were all lower than those in the non-progressive group (0. 66 ± 0. 10 vs. 0. 70 ± 0. 13;t= -2. 096,P=0. 038),and the distal pulsatility indexes of MCA stenosis at the end point in the patients of the progressive group were lower than those in the non-progressive group (0. 61 ± 0. 15 vs. 0. 74 ± 0. 15). There were significant differences (t=-2. 718,P= 0. 008). The peak systolic velocity (PSV)of the progressive MCA stenotic segments at the end point in 10 patients of the progressive group was higher than that in the non-progressive group (299 ± 23 cm/s vs. 244 ± 50 cm/s,t=3. 437;P=0. 001),while PSV of MCA in 33 patients with occlusion in the progressive group were significantly lower than those in the non-progressive group (56 ± 18 cm/s vs. 244 ± 50 cm/s,t= -20. 905;P=0. 000). (3)The regular medication:The patients using statins (atorvastatin calcium)were significantly lower than those of the non-progressive group (2. 3%[n=1] vs. 54. 4%[n=49],χ2 =33. 690;P<0. 01). (4)During the follow up period,the recurrence rates of transient ischemic attack and stroke of the progressive group were significantly higher than those of the non-progressive group (27. 9%[n=12]vs. 6. 7%[n=6],32. 6%[n=14]vs. 2. 2%[n=2];all P<0.01). (5)Multivariate Logistic regression analysis showed that smokers (OR,4. 403,95%CI 1. 094-14.017),cerebrovascular event recurrence (OR,10. 648,95%CI 2. 530 -41. 261),and irregularly taking statins (OR,5. 675,95%CI 1. 631-152. 740)were all closely associated with the progress of severeMCAstenosis.Conclusion EvaluationofthehemodynamicchangesofsevereMCAstenosiswith TCD follow up study can be used as an important basis for clinical assessment of the outcomes. Stop smoking and regularly taking statins may help to delay the progress of MCA stenosis.

Objective To investigate the criteria of hemodynamic parameters for diagnosis of intracranial segment vertebral artery stenosis with transcranial color-coded sonography (TCCS ). Methods A total of 622 outpatients or inpatients with suspected posterior circulation ischemia were enrolled retrospectively,from which 216 patients were selected with TCCS,color Doppler flow imaging (CDFI)screen,and digital subtraction angiography (DSA)examination,including 33 patients (15. 3%) had normal intracranial vertebral arteries,the stenosis rates<50% were 45 cases (20. 8%),50%-69%were 44 cases (20. 4%),and 70%-99% were 94 cases (43. 5%). The mean velocity (MV)of intracranial segment,the ratios SPRP (PSV1/PSV2 ),SPRE (EDV1/EDV2 )of the systolic and end diastolic flow velocity between the intracranial segment and the intervertebral space segment were calculated respectively by detecting the intracranial segment of vertebral artery,the intervertebral space segment peak systolic velocity (PSV1 ,PSV2 )and end diastolic velocity (EDV2 ,EDV1 ). The DSA findings were used as the criteria,the area under the receiver operating characteristic (ROC ) curve was calculated and the optimal cut-off points were obtained. Results The optimal cut-off points of TCCS diagnosis of intracranial vertebral artery stenosis were as follows:the parameter standards of stenosis rate <50% were 110 cm/s≤PSV1≤145 cm/s and 65 cm/s≤MV≤85 cm/s,the parameter standards of stenosis rate 50%-69%were 145 cm/s≤PSV1≤190 cm/s and 85 cm/s≤MV≤115 cm/s,and the parameter standards of stenosis rate 70%-99% were PSV1≥190 cm/s and MV≥115 cm/s. Conclusion TCCS may effectively evaluate the hemodynamic changes of intracranial vertebral artery stenosis and provide reference for the ultrasound evaluation criteria of intracranial vertebral artery stenosis.

Grounded on the review of the policies and outcomes of health resources allocation in China,the authors analyzed the allocation of health resources and its equity and efficiency,the comparison of and comment on domestic and foreign literatures.Based on such studies,they presented a strategic framework concerning optimal allocation of health resources in China with synergy of equity and efficiency,and developed an index system and an assessment system,as well as their optimal models and ways.

Objective To investigate the CT features of hepatic mesenchymal hamartoma (HMH)in children.Methods Nine patients with HMH confirmed by postoperative pathology were enrolled,including 4 were males and 5 were females.Their age ranged from 3 days to 9 years 5 months (the median age was 7 months).All patients admitted due to palpable abdominal mass without jaundice.All patients were examed by contrast-enhanced CT before the operation.Results All the 9 cases showed solitary hepatic mass,among which 6 were in the right lobe,2 were in the left lobe and 1 involved in both lobes.The tumor size ranged from 7.0 to 22.5 cm (mean size was 13.5 cm) in diameter.The CT manifestations of HMH was related to the proportion and distribution of component in the masses.The masses were cystic (n =1),cystic-solid mixed (n =6) and solid (n =3).After contrast administration,the solid component and the septa of the mass showed enhancement while cystic component was not enhanced.Calcification was seen inside the tumor in one case.Conclusions The CT features of HMH in children are multitudinous which are related to postoperative pathological findings.With the clinical history,it is easy to distinguish HMH from the other hepatic tumors.