Objective To describe the change of symptoms and quality of life among nasopharyngeal carcinoma patients who undergo radiotherapy, and analyze the correlation between them.Methods A total of 218 nasopharyngeal carcinoma patients who received radiotherapy were included by convenient sampling method and they were asked to finish the questionnaire of general information, Chinese Version of the M.D. Anderson Symptom Inventory(MDASI-C) and Quality of Life Instruments for Cancer Patients-Head and Neck (QLICP-HN) at five time points, which were beginning, intermediate (the volume of radiotherapy at 36-40 Gy), end of radiotherapy, three months and six months after radiotherapy.Results The severity of symptoms at five time points were (1.86±1.75),(3.20±1.75),(3.59±1.81),(0.65±0.59) and (0.52±0.50), presenting decreased gradually first, and then alleviated. The score of symptom severity at five time points were significantly different (F=182.86,P<0.05). Fatigue, appetite loss and dry mouth were the most sever and high-incidence symptoms during and within six months after radiotherapy. The quality scores of life were (65.39±10.90),(58.78±8.77),(57.82±9.20),(79.76±5.75) and( 76.79±4.78) at five time points, representing the same trend as the scores of symptom, and the difference were statistically significan(t F=129.75,P< 0.05). Spearman correlation analysissuggested that there were negative correlation between severity of symptoms and total score of quality of life (P < 0.05). Conclusions The symptoms of nasopharyngeal carcinoma patients exacerbates with dose of radiotherapy increase, and the quality of life is also decreased. Although most of symptoms disappear within six months after radiotherapy, fatigue, appetite loss and dry mouth persisted and influence patients' quality of life.Nurses should pay attention to patients' symptoms when they stay at hospital as well as discharged, and intervention is necessary to improve their quality of life.

Objective:To explore the current situation of the use of assistive devices for mobility in patients with knee osteoarthritis and analyze its influencing factors.Methods:Using the convenient sampling method, patients with knee osteoarthritis who were admitted to the Orthopedics Department of a Class Ⅲ Grade A general public hospital in Zhengzhou from January to July 2019 were selected as the research objects. The general information questionnaire, the Quebec User Evaluation of Satisfaction with Assistive Technology (QUEST) Scale and other scales were used to conduct surveys. Univariate analysis and binary Logistic regression analysis were used to investigate the influencing factors of the use of assistive devices for mobility in patients with knee osteoarthritis. In this study, a total of 347 questionnaires were distributed and 340 valid questionnaires were returned. The effective recovery rate was 97.98%.Results:The usage rate of assistive devices for mobility in patients with knee osteoarthritis was 26.47% (90/340) , 5.55% (5/90) of the patients were recommended using assistive devices for mobility by medical staff, 2.22% (2/90) of the patients obtained assistive devices for mobility through professional adaptation, and 81.11% (73/90) of the patients did not receive health education on assistive devices for mobility. The total mean score of the QUEST Scale for 90 patients with knee osteoarthritis using assistive devices for mobility was (3.17±0.34) . Binary Logistic regression analysis showed that age, education level, monthly income, pain intensity, the activity of daily living status and social support were influencing factors for the use of assistive devices for mobility in patients with knee osteoarthritis ( P<0.05) . Conclusions:Patients with knee osteoarthritis have a lower usage rate of assistive devices for mobility, receive fewer professional assistive devices for mobility services, and have lower satisfaction with them. There are many factors affecting whether or not to use assistive devices for mobility. Medical staff should pay more attention to and guide the use of assistive devices for mobility for patients with knee osteoarthritis.

Objective: To develop a native adaptive behavior scale for children with autism spectrum disorder(ASD) and to explore its reliability and validity. Methods: Items of ASD adaptive behavior rating scale were selected based on the scale development theory, ASD knowledge and adaptive behavior concept through preliminary survey and statistical, and 301 ASD children aged 2 to 12 from hospitals in Guangzhou, Huizhou, Shenzhen who met the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition were selected, data was analyzed by the item analysis. Results: After item analysis and exploratory factor analysis, the final version of the scale contains 58 items, and 64.24% of the total variation could be explained by 6 factors; The Cronbach’s α coefficient of the full scale was 0.98, and the coefficient value of dimen sional factors were 0.94，0.93，0.91，0.95，0.88，0.94. The test-test reliability r of full scale was 0.86, the r of the factor were 0.88，0.81，0.81，0.87，0.88，0.79. The criterion-related validity r with the ABAS-Ⅱ scale was -0.77, the criterion-related validity r with the CARS scale was 0.64. Conclusion The ASD Child Adaptive Behavior Scale showed good reliability and validity, and could be used widely.

Objective:To explore the efficacy, safety, and feasibility of single port laparoscopic liver resection via umbilical cord, and summarize its surgical experience.Method:A retrospective analysis was conducted on 39 patients who underwent liver resection surgery at the Department of Hepatobiliary and Pancreatic Surgery, the Affiliated Hospital of Qingdao University from February 2022 to September 2023. There were 19 patients in the transumbilical single-port laparoscopic group, including 5 males and 14 females, aged (49.6±2.5) years. There were 20 patients in the multi-port laparoscopic group, including 7 males and 13 females, aged (49.9±3.1) years. The intraoperative blood loss, operation time, intestinal recovery time, postoperative hospital stay and postoperative complications were compared between the single-port group and multi-port group.Results:All 39 patients successfully completed the surgery without any additional foramen or conversion to open surgery. The operation time of the single hole group (166.3±59.0) min was longer than that of the multi-port group (123.2±48.0) min, and the difference was statistically significant ( t=2.50, P=0.020). There were no statistically significant differences in intraoperative blood loss, intestinal recovery time, postoperative hospital stay, and postoperative complications between these two groups (all P>0.05). All patients had no postoperative complications such as bleeding, infection, or bile leakage. Follow up for 3~21 months showed no recurrence of primary diseases such as hepatic hemangioma, hepatic adenoma, and intrahepatic bile duct stones. The aesthetic effect of the umbilical incision in the single orifice group was significant, and patient satisfaction was 100%. Conclusion:Umbilical single-port laparoscopic liver resection surgery is safe and feasible, with significant minimally invasive and aesthetic effects.

Objective To investigate the effect of MMP-8 on cornea. Methods Fifteen C57BL/6J healthy mice were selected. The right eyes corneal stroma was injected by 10μL MMP-8 as the experimental group and the left eyes were injected by same amount of normal saline as the control group. At 0,4,8 h, the two-photon microscope second harmonic generation imaging technology was used to scan mice corneal stroma layer by layer in vivo. The obtained images were performed the 3D reconstruction by Imaris software and the signal intensity of the images were calculated. At 4,8 h, the corneal opacity degree was evaluated under slit lamp. At 8 h,mice were killed and corneas were collected to determine the hydroxyproline concentration. Results The cornea stromal fiber signal strengthes at 0 h in the experimental group and control group were (89.7±11.2) and (85.3±7.0),which at 4 h were (14.5±3.4) and (46.6±14. 0) respectively,which at 8 h were (11.0±4.6) and (34.6±12.5) respectively. The cornea stromal signal strength at 4,8 h in the experiemental group was significantly decreased compared with that in the control group (P<0.05) ;the cornea at 4 ,8 h in the experimental group was significantly turbid than that in the control group (P<0.05);the cornea hydroxyproline concentrations detected at 8h in the experiemental group and control group were (0.433±0. 090) μg/mg and (0. 590±0. 133) μg/mg respectively,the experimental group was significantly lower than the control group (F=7. 193,P=0. 014). Conclusion MMP-8 has obvious degradation and destroy effect on mice corneal stroma collagen,which leads to the decrease of corneal opacity.

Objective:To evaluate the acute effects of different foot-strike patterns of running on knee cartilage in amateur marathon runners using the T 2* mapping technique. Methods:From November 2021 to February 2022, 29 amateur marathon runners were recruited in Hangzhou. The gait analysis was performed to determine their landing patterns, then the runners were divided into the fore-foot strike (FFS) group (11 cases) and the rear-foot strike (RFS) group (18 cases). The MRI of the knee joint of the dominant leg was performed before and 30 min after running, and the volume, thickness, and T 2* value of each division of knee cartilage were measured. Independent samples t-tests were used to compare the differences in baseline data before running between the groups, and paired samples t-tests were used to compare the differences before and after running within the groups. Results:The difference in knee cartilage volume and thickness between the FFS and RFS groups before running was not statistically significant ( P>0.05), and the T 2* value of the femur medial posterior in the RFS group was higher than that of the FFS group ( t=-2.47, P=0.020). Compared with pre-running, cartilage thickness of the tibia lateral posterior decreased in the FFS group after running ( t=-2.96, P=0.016), and cartilage thickness of the tibia lateral posterior and patella lateral central decreased in the RFS group ( t=-3.25, -3.02, P=0.004, 0.007). Cartilage volume of the tibia lateral posterior decreased in the FFS group after running ( t=-2.58, P=0.030), and the cartilage volume of the patella lateral central decreased in the RFS group ( t=-2.74, P=0.013). The differences in T 2* values of cartilage in each region before and after running were not statistically significant in the FFS group ( P>0.05), whereas in the RFS group, the cartilage T 2* values in the femur medial posterior, femoral trochanter central, femoral trochanter lateral, femur lateral central, tibia lateral anterior, tibia medial posterior, tibia medial central, and tibia medial anterior decreased ( P<0.05). Conclusions:After running, FFS showed changes in morphology and biochemical composition only in some subregions of tibial cartilage, whereas most of the femoral cartilage, patellar cartilage, and tibial cartilage regions were altered by RFS. The RFS pattern introduces greater acute changes in cartilage in the knee joint.