Aim To establish a HPLC method for determination of the content of Huperzine A in Huperzia serrata and compare it in different parts of the plants. Method DiamonsilTm C_ 18 column(200 mm?4.6 mm,5 ?m)was used; the mobile phase was methanol ∶0.08 mol?L-1ammonium acetate buffer(40 ∶60,pH=6.0),the detection wavelength was 308 nm, with flow rate at 1.0 ml?min-1;the column temperature was room temperature.Results There is a good linear relationship within the range of 5～100 mg?L-1(r=0.9997).The average recovery was 99.10%,with RSD 2.44%(n=5).Regarding the content of Huperzine A in different parts of Huperzia serrata, it was found that the quantity of Huperzine A in leaf was higher than that in stem and it was the lowest in root. Conclusion The method is simple, accurate and reliable etition. Huperzine A can be accumulated in the aboveground part of the plant.

OBJECTIVE:To observe the effects of epalrestat combined with lipoic acid on nerve function,oxidative stress and inflammatory reaction in patients with diabetic peripheral neuropathy(DPN). METHODS:From Jan. 2013 to Jan. 2016,150 pa-tients were selected from our hospital and then divided into group A,B,C according to random number table,with 50 cases in each group. Group A was given Lipoic acid injection 600 mg,ivgtt,qd;group B was given Epalrestat tablet 50 mg,po,tid;group C was given lipoic acid+epalrestat,same usage and dosage as above. TSS score,MNCV,SNCV,oxidative stress indexes (SOD and MDA)and inflammatory indexes(TNF-α and IL-6),as well as blood pressure,blood lipid and blood glucose indexes were compared among 3 groups before and after treatment. The occurrence of ADR were observed. RESULTS:Before treatment, there was no statistical significance in above indexes among 3 groups (P>0.05). Compared to before treatment,TSS score, MDA,TNF-α and IL-6 levels of 3 groups were decreased significantly after treatment;MNCV and SNCV were speeded up signifi-cantly,and SOD level was increased significantly;each index of group C was better than that of group A and B,with statistical significance(P<0.05),but there was no statistical significance between group A and B(P>0.05). SBP and FPG after treatment of 3 groups were decreased significantly than before treatment,while HDL-C was increased significantly,with statistical signifi-cance(P<0.05);there was no statistical significance among 3 groups(P>0.05). No obvious ADR was found in 3 groups. CON-CLUSIONS:Epalrestat combined with lipoic acid can effectively improve nerve function in DPN patients by inhibiting oxidant stress and inflammatory reaction with good safety. The effect of drug combination is better than single drug.

Objective:To evaluate the effect of repeated intranasal insulin on postoperative delirium (POD) in elderly patients undergoing general anesthesia.Methods:Seventy elderly patients, aged ≥65 yr, with body mass index ≤28 kg/m 2, of American Society of Anesthesiologists physical statusⅠ-Ⅲ, undergoing elective radical gastrectomy for gastric cancer under general anesthesia, were divided into 2 groups ( n=35 each) according to the random number table method: control group (group C) and insulin group (group I). In group C, normal saline 0.5 ml was administered intranasally twice a day from 2 days before surgery until the day of surgery.In group I, insulin 20 U (0.5 ml) was administered intranasally twice a day from 2 days before surgery until the day of surgery.The regional tissue oxygen saturation (rSO 2) was measured after entering the operating room (T 0), at intubation (T 1), at 1, 2 and 3 h after the start of operation (T 2-4), at the end of surgery (T 5) and at extubation (T 6). The insulin allergic reactions, nasal irritation and hypoglycemic reactions were recorded after intranasal administration of insulin or normal saline within 2 days before operation.The blood glucose concentrations were measured at T 0, T 3 and T 5.The occurrence of POD within 3 days after operation was recorded. Results:Compared with group C, the incidence of POD was significantly decreased within 3 days after operation, and the rSO 2 was increased at T 1-6 in group I ( P<0.05). The rSO 2 was significantly higher at T 1-6 than at T 0 in two groups ( P<0.05). There were no significant changes in blood glucose concentrations at T 0, T 3 and T 5 between the two groups ( P>0.05). No insulin allergic reactions, nasal irritation and hypoglycemic reactions occurred in two groups ( P>0.05). Conclusion:Repeated intranasal administration of insulin can increase the rSO 2 during operation and decrease the occurrence of POD in elderly patients undergoing radical gastrectomy for gastric cancer.

Objective:To study the hemostatic and adhesion-prevention properties of gelatin-chitosan crosslinked film after craniotomy. Methods: Gelatin-chitosan crosslinked film was prepared by casting the mixed solution of dialyzed chitosan and gelatin after crosslinking with glutaraldehyde in freeze dryer. Bleeding time was recorded for bilateral back incisions (5 incisions on each side) in 4 New Zealand white rabbits. Incision on one side was treated with gelatin-chitosan crosslinked film, and on the other was treated with gauze. Hemoglobin amount in films or gauzes was measured to determine the hemostatic effect after bleeding. Bilateral craniotomies were performed at calvaria in 16 adult rabbits. A piece of gelatin-chitosan crosslinked film was put in one randomized side and the other side served as a control. The scar formation was evaluated grossly and histologically on week 2,4,8,12. Results:Bleeding time and hemoglobin amounts in gelatin-chitosan crosslinked film group were superior to those in gauze group(P

To analyse and compare the characteristics of the intestinal absorption of puerarin, baicalin, berberine and liquiritin in different combinations of Gegenqinlian decoction based on pharmacokinetic parameters, a sensitive liquid chromatography-tandem mass spectrometric (LC-MS/MS) method was applied for the quantification of four components in rat's plasma. And pharmacokinetic parameters were determined from the plasma concentration-time data with the DAS software package. The influence of different combinations on pharmacokinetics of four components was studied to analyse and compare the absorption difference of four components, together with the results of the in vitro everted gut model and the rat single pass intestinal perfusion model. The results showed that compared with other combinations, the AUC values of puerarin, baicalin and berberine were increased significantly in Gegenqinlian decoction group, while the AUC value of liquiritin was reduced. Moreover, the absorption of four components was increased significantly supported by the results from the in vitro everted gut model and the rat single pass intestinal perfusion model, which indicated that the Gegenqinlian decoction may promote the absorption of four components and accelerate the metabolism of liquiritin by the cytochrome P450.

Objective:To explore whether the inequality of economic development in different provinces in China leads to differences in pediatric nurses ′ health education literacy and to analyze related factors affecting pediatric nurses ′ health education literacy. Methods:Self-designed and tested online questionnaire of competencies in health education (scoring scale 10-50) were distributed to pediatric nurses in China in October 2018. We examined the influencing factors of competencies in health education and its relationship with the province-level data on gross domestic product (GDP) per capita.Results:A total of 15 443 pediatric nurses from 31 provinces were eligible for the analysis. At the regional of GDP per capital over than 20 000 US dollars, 15 000 to 20 000 US dollars, 10 000 to 14 900 US dollars and less than 10 000 US dollars, the health education literacy scores were 40.76±4.52, 40.66±4.08, 40.50± 4.02 and 39.69±4.32 respectively. Significant difference was found between the competencies in health education of pediatric nurses and provinces with different GDP per capita ( F value was 9.21, P<0.001). Regression and hierarchical analysis models based on GDP per capita showed that: nurses with senior professional titles, bachelor degrees or above, aged over 40, and those working in emergency rooms have higher competencies in health education ( OR value was 0.296-4.766, P<0.05) . Lower competencies in health education were demonstrated on nurses who have been working less than 5 years ( OR value was 0.319, P<0.05). Conclusions:Economic development is one of the main factors that affect the competencies in health education of pediatric nurses in China. Pediatric nurses who were young, had limited working experience, with low office titles, with low education background, and who working at non-emergency rooms require more training.

Objective To evaluate the effectiveness of psychological health intervention in the elderly urban residents living on minimum subsistence allowances, and to search for a suitable psychological health intervention strategy. Methods The 112 elderly persons living on minimum subsistence allowances in Xuzhou were selected by stratified cluster sampling, and they were matched with 112 controls. The elderly persons living on minimum subsistence allowances were divided into intervention group and control group. A general intervention based on community involved psychological health and care lecture, psychodrama treatment and psychological consultancy was made on the intervention. The SCL-90 was used to evaluate the psychological health status and effectiveness of psychological health intervention. Results The elderly persons living on minimum subsistence allowances had higher SCL-90 scores compared with other residents, and their psychological health status was serious. After the psychological health intervention, the SCL-90 scores were all lower in intervention group than in control group [ interpersonal relationship sensitiveness: (1.13 ± 0. 39) vs.(1.26±0.26), t=2.12, P=0.04; gloom: (1.23±0.66) vs. (1.43±0.24), t=2.08, P=0.04;anxiety: (1. 18±0.50) vs. (1.38±0.34), t=2.17, P=0.03; hostility: (1.24±0.49) vs. (1.40±0.28), t=2.03, P=0.04; other factor: (1. 31±0.56) vs. (1.49±0.31), t=2.04, P=0.04; total score: (115.89± 17.21) vs. (122.64± 10.41), t=2.42, P=0.02]. Conclusions The psychological health parameters are improved by psychological health intervention.

Objective:To investigate the clinical outcomes of using the levofloxacin combined with intrauterine infusion of metronidazole for the treatment of the infertility patients with chronic endometritis (CE).Methods:Using a case-control study method. 82 infertility patients with CE admitted to Xuzhou Central Hospital from March 2018 to March 2021 were selected and randomly divided into an observation group and a control group using a random number table method, with 41 cases in each group. The control group was treated with oral levofloxacin hydrochloride, while the observation group was treated with metronidazole sodium chloride injection intrauterine infusion on the basis of the control group. Both groups were treated for 14 days. Compare the serum C-reactive protein (CRP) and tumor necrosis factor between two groups before and after treatment α(tumor necrosis factor-α, TNF-α) The levels of monocyte chemotactic protein 1 (MCP-1), natural pregnancy rate within six months, total effective rate, and incidence of adverse reactions during treatment were measured. The measurement data with normal distribution is expressed as: independent sample t-test is used for comparison between the two groups, and paired t-test is used for comparison before and after treatment within the group; The measurement data of non normal distribution is represented by M( Q1, Q3), and the comparison between groups is made by Wilcoxon Rank sum test. The counting data is represented by examples (%), and the comparison between groups is conducted using the χ 2 test. Results:Before treatment, two groups of serum CRP and TNF-α There was no statistically significant difference compared to the levels of MCP-1 (all P>0.05); After 14 days of treatment, both groups had serum CRP and TNF-α、MCP-1 were all lower than before treatment, and the observation group was lower than the control group [(4.12±1.9) ng/L vs (6.36±1.63) ng/L, (47.28±9.10) ng/L vs (62.79±9.34) ng/L, (212.04±24.82) ng/L vs (326.15±27.38) ng/L], with statistically significant differences ( t-values of 5.61, 7.62, and 19.77, all P<0.001). After 14 days of treatment, the total effective rate of the observation group was higher than that of the control group [95.12% (39/41) vs 78.05% (32/41)], with a statistically significant difference (χ 2=5.14, P=0.023). After 6 months of treatment, the natural pregnancy rate in the observation group was higher than that in the control group [53.66% (22/41) vs 31.71% (13/41)], with a statistically significant difference (χ 2=5.96, P=0.044). There was no statistically significant difference in the incidence of adverse reactions between the two groups during the treatment period (χ 2=0.55, P=0.457). Conclusions:The combination of levofloxacin and intrauterine infusion of metronidazole has a good clinical effect in treating infertility patients with CE. It can significantly improve the inflammatory state of the body, reduce serum inflammatory factor levels, increase the natural pregnancy rate within 6 months, and do not increase the incidence of adverse reactions.

Purpose: RIOK1 has been proved to play an important role in cancer cell proliferation and migration in various types of cancers—such as colorectal and gastric cancers. However, the expression of RIOK1 in breast cancer (BC) and the relationship between RIOK1 expression and the development of BC are not well characterized. In this study, we assessed the expression of RIOK1 in BC and evaluated the mechanisms underlying its biological function in this disease context. Materials and Methods: We used immunohistochemistry, western blot and quantitative real-time polymerase chain reaction to evaluate the expression of RIOK1 in BC patients. Then, knockdown or overexpression of RIOK1 were used to evaluate the effect on BC cells in vitro and in vivo. Finally, we predicted miR-204-5p could be a potential regulator of RIOK1. Results: We found that the expression levels of RIOK1 were significantly higher in hormone receptor (HR)–negative BC patients and was associated with tumor grades (p=0.010) and p53 expression (p=0.008) and survival duration (p=0.011). Kaplan-Meier analysis suggested a tendency for the poor prognosis. In vitro, knockdown of RIOK1 could inhibit proliferation, invasion, and induced apoptosis in HR-negative BC cells and inhibited tumorigenesis in vivo, while overexpression of RIOK1 promoted HR-positive tumor progression. MiR-204-5p could regulate RIOK1 expression and be involved in BC progression. Conclusion These findings indicate that RIOK1 expression could be a biomarker of HR-negative BC, and it may serve as an effective prognostic indicator and promote BC progression.

Objective To discuss the pathological and clinical characteristics,treatments and prognosis of schwannoma of the kidney.Methods Two cases of schwannoma of the kidney in our hospital were reviewed with clinicopathological data and their follow-up.The related literatures were reviewed.The first case was a male patient,28 years old,complained about paroxysmal abdominal pain with nausea over 2 weeks.The physical exam found a 10 cm,qualitative hard,poor activity,tenderness mass in kidney region.MRI preoperative diagnosis was right renal cell carcinoma with renal vein and inferior vena cava tumor thrombus formation.The second patient,female,53 years old,the mass on upper right kidney was found occasionally.It was diagnosed as adrenal pheochromocytoma before operation,laparoscopic resection of right renal hilum mass and right partial adrenectomy plus right nephrectomy were performed.There was no tumor recurrence in the follow-up.Results The abdominal aortography and double renal arteriography were done and right renal artery embolization and inferior vena cava filter were allocated.Then right radical nephrectomy and inferior vena cava tumor thrombus removal were carried out on the first patient.The first malignant and the second benign renal schwannoma patient showed significant difference in pathological presentations.Their immunohistochemistry also showed great diversity.Malignant renal schwannoma was significantly stained by Ki-67 ＞ 40％,S-100 was negative.Ki-67 in benign neurilemmomas was about 2％,and S-100 in benign renal schwannoma was positive.Conclusions Schwannoma of the kidney is rare with a favorable prognosis.The golden standard of diagnosis is pathology.Surgical resection has become the first choice for treatment.Recurrence and malignant transformation would happen after the surgery so that all the patients should be followed up.