Objective To study the expressions of matrix metalloproteinase-1 3 (MMP-1 3)and p73 in gastric adenocarcinoma,and to explore the associations of the expressions of MMP-1 3 and p73 with the clinico-pathological features,and to evaluate their clinical significances for the prognosis of gastric adenocarcinoma metastasis.Methods The immunohistochemistry SP methods was used to evaluate the expressions of MMP-1 3 and p73 in 1 43 cases of gastric adenocarcinoma and 55 normal tissues adjacent to carcinoma,and their associa-tions to the clinicopathologic features were analyzed.Results The expression of MMP-1 3 in gastric adenocarci-noma was significantly higher than that in adjacent tissues of cancer (67.1 3% vs 1 6.35%),with a significant difference (χ2 =41 .1 0,P =0.000).The expression of p73 in gastric adenocarcinoma was significantly higher than that in adjacent tissues of cancer (58.74% vs 1 2.73%),with a significant difference (χ2 =33.86,P =0.000).In the gastric adenocarcinoma,the expression of MMP-1 3 was associated with peripheral lymph node metastasis (χ2 =1 1 .835,P =0.001 ),depth of invasion (χ2 =5.1 77,P =0.032)and TNM stage (χ2 =1 1 .1 07,P =0.001 ),but it was not correlated with the ages of patients (χ2 =0.1 1 3,P =0.853),tumor size (χ2 =0.338,P =0.591 )and tumor differentiation level (χ2 =3.628,P =0.072).In the gastric adenocarci-noma,the expression of p73 was associated with peripheral lymph node metastasis (χ2 =1 1 .440,P =0.001 ), tumor differentiation level (χ2 =5.407,P =0.025)and TNMstage (χ2 =9.497,P =0.003),but it was not correlated with the ages of patients (χ2 =1 .567,P =0.222),tumor size (χ2 =0.841 ,P =0.392)and depth of invasion (χ2 =0.554,P =0.498).The expression of MMP-1 3 was positively correlated with the expression
of p73 in gastric adenocarcinoma group (r =0.684,P =0.000).Conclusion Both MMP-1 3 and p73 may participate in the development of gastric adenocarcinoma,which can be used as an important index for the eval-uation of invasiveness and metastasis in gastric adenocarcinoma.

This paper summarized nursing experience of 23 patients with malignant tumor treated by 3D printing individualized template and 125I seed implantation.Nursing points included:preoperative assessment and preparation,reviewing the process of template conduction,assisting the physician to simulate the position of patients,making treatment plans,preparing templates before operation;resetting and maintaining position of patients,performing template alignment,seed implantation,monitoring vital signs and complications during operation;observation of complications,providing radiation protection and discharge guidance after operation.All 23 patients completed 125I seed implantation and no serious complication was observed.All patients recovered well and were discharged after treatment.

Objective:To evaluate the ultrasound diagnostic value of portal vein complications after liver transplantation by monitoring changes in portal vein hemodynamic parameters using the color Doppler ultrasound technology and to determine its clinical significance.Methods:The clinical data of 99 patients who underwent liver transplantation at the Organ Transplantation Center of the Affiliated Hospital of Qingdao University from July 2015 to December 2018 were analyzed retrospectively. There were 81 males and 18 females, aged (51±9) years old. These patients were divided into the portal vein complication ( n=23) and the non-portal vein complication ( n=76) groups, based on whether portal vein complications had developed within 2 years after surgery. In addition, 30 healthy volunteers at the Affiliated Hospital of Qingdao University, including 16 males and 14 females, aged (40±14) years old were selected to form the control group. The patients’ morphology of liver was studied using color Doppler ultrasound at days 1, 7, 14, 30, 180, 365 and 730 after liver transplantation, and the maximum portal vein blood flow velocity and portal blood flow were recorded. Results:Compared with the control group, the maximum portal venous flow velocity and portal venous blood flow significantly increased on days 1, 7, 14, 30, and 180 after liver transplantation in the non-portal complication group (all P<0.05). With time, these changes showed a decreasing trend. By day 365 after surgery, the differences between the maximum portal venous flow velocity and the portal venous blood flow between the two groups became not significant ( P>0.05). Of the 23 patients in the portal vein complication group, 9 developed portal vein stenosis (PVS) and 14 portal vein embolism. The 9 patients with PVS had a maximum portal flow velocity of 63.8 (46.0, 78.6) cm/s at 1 month after surgery, and this flow velocity was significantly higher than that in the non-portal complication group [35.0(29.6, 41.8) cm/s, Z=-3.35, P<0.001]. The portal blood flow was 993 (887, 1168) ml/min in the 9 patients with portal vein stenosis at 1 month after surgery, and it was significantly higher than those in the non-portal complication group [811(682, 1 018) ml/min, Z=-2.37, P=0.020]. Conclusions:After liver transplantation, both the portal venous blood flow velocity and the blood flow were at high levels in the early postoperative period and they returned to normal levels with time. Ultrasound dynamic monitoring of portal venous blood flow changes was of clinical significance in diagnosing portal vein stenosis and portal vein embolism after liver transplantation.