OBJECTIVE:To study the synthetic technique of magnesium gluconate METHODS:By taking gluconolactone and magnesium oxide as the semifinished materials,the synthetic technique of magnesium gluconate was optimized by orthogonal design RESULTS:The optimal preparing condition:gluconolactone∶magnesiumoxide(mol∶mol)was 1∶0 6;reaction temperature 100℃;reaction time 3 hours Under the optimal conditions,the drug were synthesized with a rate of total output over 95 0% CONCLUSION:This synthetic technique is stable in output rate,short in reaction period and feasible in operation

Objective : To observe the clearance of smear layer on the root canal wall in different action time by scanning electron microscope (SEM), and to determine the optimal amount of time using sonically activated irrigation to wash root canal in clinic. Methods: Fifty-six ex vivo human anterior teeth with single straight root canal were selected. After routine mechanical preparation, they were divided into two experimental groups according to different irrigating agents: saline group and EDTA group. Each group was assisted by VDW sonic activation EDDY. The saline group was divided into three subgroups according to the irrigating time: 5 s, 30 s and 50 s; EDTA group was divided into six subgroups according to the irrigating time: 5 s, 10 s, 20 s, 30 s, 40 s and 50 s. The control group did not undergo root canal irrigation. After irrigation, the root was cut longitudinally. The smear layer of crown, middle and apical of root canal wall was observed by SEM. Results: After irrigating for 30 seconds, there was a significant difference between the normal saline group and the control group and the 5 second group (P<0.05), and there was no difference in the middle and apical part (P>0.05). After 50 seconds, there was a significant difference in the score of the smear layer between the apical area and the other groups (P<0.05). After irrigating for 5 seconds or 10 seconds in EDTA group, there was a significant difference between the scores of the crown and middle area of the root canal and the control group (P<0.05), and there was no significant difference in the apical area (P>0.05). There was a significant difference between the 20-40 second group and the first two groups (P<0.05). There was a significant difference between the 50 second group and the other groups (P<0.05). Comparing the cleaning effect on the smear layer after 50 seconds of irrigating between the two experimental groups, the whole root canal showed significant statistical difference (P<0.05). Conclusion The EDTA-assisted sonic activated device used for 50 seconds has the best cleaning effect.

Objective: To investigate the value of planned neck dissection combined with induction chemotherapy and concurrent chemoradiotherapy in regional control and the outcome of locally advanced head and neck squamous cell carcinoma. Methods: A prospective randomized controlled study totally enrolled sixty-four patients of head and neck squamous cell carcinomas(include oropharynx, hypopharynx, and larynx) in stages Ⅳa-Ⅳb with lymph node metastase was were N2-N3. All patients firstly received 2-3 cycles of induction chemotherapy(ICT), then divided into two groups randomly, according to the efficacy of ICT. Group A(the study group) received planned neck dissection(PND) and concurrent chemoradiotherapy(CCRT). Group B(the control group) received concurrent chemoradiotherapy(CCRT). The differences in clinicopathologic features, local recurrence(LR), regional recurrence(RR), disease-free survival(DFS), and overall survival(OS) between the two groups were estimated. SPSS 19.0 software was used to analyze the data. Results: Group A enrolled twenty-one patients, and group B enrolled forty-three patients.The follow-up of all patients were 4-55 months, median follow-up time was 22 months. In study group, two-year OS and DFS were 80.9% and 68.3%, respectively. In control group, two-year OS and DFS were 90.7% and 67.1%, respectively. There was no significant difference in gender(P=0.215), age(P=0.828), primary tumor site(P=0.927), LR(P=0.126), DFS(P=0.710), and OS(P=0.402) between the two groups, while the RR(χ²=5.640, P<0.05) and distant metastasis(χ²=10.363, P<0.01) showed significant differences between the two groups. Conclusion The ICT+ PND+ CCRT treatment model has benefit on regional control of locally advanced head and neck squamous cell carcinoma.

OBJECTIVE To assess the effect of medication therapy management(MTM) on symptom improvement and medication adherence in depressed female patients, and to explore the depression severity and adherence characteristics of female patients of different ages. METHODS A total of 180 female depressed patients from February 2022 to July 2022 were recruited and randomly divided into two groups according to age and depression severity: the control group and the management group,with 90 cases in each group. Patients in the control group were given conventional therapy, while those in the management group were given MTM on top of conventional therapy. The self-rating depression scale(SDS)was applied at enrollment and 3 months after treatment to assess symptom improvement in both groups, and the Morisky Medication Adherence Scale- 8(MMAS-8) was applied at the end of 4, 8 and 12 weeks of treatment to compare adherence differences between the two groups, and subgroup analysis was performed based on stratification factors. RESULTS A total of 147 patients completed all assessments and follow-up, and there was no statistically significant difference in drop-out rate between the control group and the management group(χ2=3.006, P=0.083). Patients who dropped-out with different depression severity were compared with those who did not, with a statistically significant difference(χ2=13.927, P=0.001). For the comparison of SDS scores by age group, the highest SDS scores before and after treatment were found in adolescence, followed by menopause, and the lowest in childbearing age, with statistically significant differences(P＜0.05). The SDS scores of each subgroup of different age groups and each subgroup of different depression severity in the management group were lower than those of the corresponding groups in the control group, with statistically significant differences except for the menopausal subgroup and the mild subgroup(P＜0.05). The overall compliance score of 176 patients was (5.69±1.37) points. In the full assessment the adherence scores were the highest in childbearing, followed by adolescence, and the lowest and the lowest in menopause, with statistically significant difference(χ2=6.61, P=0.037). The adherence scores of the different age groups were higher in the management group than those in the control group,with statistically significant differences in adolescence(χ2=25.573, P＜0.001), childbearing age(χ2=7.772, P=0.005)and menopause(χ2=19.776, P＜0.001) for the full assessment. Except for the 1st and 2nd follow-up in childbearing age, there were statistically significant differences between management group and control group at three age groups in the three follow-up visits(P＜0.05). CONCLUSION The depression severity in female depressed patients varies by age, with the heaviest in adolescence and the least severe in childbearing age. The overall level of medication adherence is low in female patients. The adherence is highest in childbearing age and lowest in menopause. MTM boasts to be effective in promoting symptom improvement and adherence in female depressed patients of different ages.