1.Effect of NEP1-40/PLGA on facial nerve repair in rats
XUE Bing ; XI Hualei ; YAO Lihong ; XU Wanqiu ; XU Xiaohang ; LIN Song ; PIAO Guiyan ; WANG Xiumei
Journal of Prevention and Treatment for Stomatological Diseases 2025;33(2):110-119
Objective:
To investigate the effect of neurite outgrowth inhibitor extracellular peptide residues 1-40 (NEP1-40) combined with poly (lactic-co-glycolic acid) (PLGA) and gelatin electrospun fiber membrane on facial nerve repair in rats.
Methods:
According to the principle of random grouping, 108 male SD rats were divided into four groups (n = 27 in each group, approved by the ethics committee), namely, the sham group, control group, PLGA group, and NEP1-40 + PLGA group. A facial nerve fracture model was established for all of the groups except for the sham group. The control group received no further treatment, the PLGA group and the NEP1-40+PLGA group were supported by PLGA membrane, and the NEP1-40+PLGA group received one immediate local injection of NEP1-40 (5 μg/μL) at a dose of 10 μL. Facial nerve function analysis, electrophysiological examination, transmission electron microscope observation, HE staining, and immunohistochemical staining of myelin marker S100β and axonal marker β3-tubulin were used to evaluate the recovery of injured facial nerves of rats at 2, 4 and 8 weeks.
Results :
At 8 weeks, the facial nerve function score of the NEP1-40+PLGA group was better than that of the control group and PLGA group (P < 0.001), and facial nerve function was significantly restored. Electrophysiological examination of nerve action potentials at the injured facial nerve showed that the amplitude in the NEP1-40+PLGA group was higher than that of the control group and PLGA group (P < 0.001), but there was no significant difference in latency and conduction velocity results between the groups (P > 0.05). At 2, 4, and 8 weeks, transmission electron microscopy showed that the number of myelinated nerve fibers and myelin sheath thickness in the cross-section of the injured facial nerve in the NEP1-40+PLGA group were greater than those in the other groups (P < 0.05). At 8 weeks, HE staining showed that the facial nerves in the control group had partially recovered, but the overall cell distribution was uneven and the boundary with surrounding tissues was slightly blurred. In contrast, the NEP1-40+PLGA group had a relatively uniform cell distribution and a clearer boundary with surrounding tissues. At 2, 4, and 8 weeks, the immunohistochemical results showed that in the cross-section of the injuried facial nerve, NEP1-40 increased the expression of neural markers S100 β and β3-tubulin, especially β3-tubulin, which was close to normal levels (P > 0.05)
Conclusion
NEP1-40 is beneficial for the generation of new myelin sheaths and axons at the site of injury, and it can promote the repair and regeneration of injured facial nerves to a certain extent, thus accelerating the recovery of injured nerve function.
2.Construction of evaluation index system of nursing quality of neonatal breastfeeding in the state of mother-infant separation
Xue YU ; Ke SHI ; Tengfei ZHOU ; Zhiwei ZUO ; Qingqing SHEN ; Yuehua GUO ; Xiumei QI
Chinese Journal of Practical Nursing 2024;40(29):2262-2270
Objective:To establish a scientific and standardized evaluation index system of neonatal breastfeeding nursing quality under the state of mother-infant separation, in order to provide a tool for the detection and management of neonatal breastfeeding nursing quality under mother-infant separation, so as to promote the implementation of breastfeeding in China.Methods:A systematic and comprehensive search of Chinese and English databases was conducted to collect guidelines on neonatal breastfeeding in the state of mother-infant separation. Based on the "structure-process - result" three-dimensional quality structure model, the preliminary draft of evaluation indexes of neonatal breastfeeding nursing quality in the state of mother-infant separation was formed. The evaluation indexes of neonatal breastfeeding nursing quality in the state of mother-infant separation were constructed by Delphi expert correspondence method from July to October, 2023.Results:The effective recovery rates were 95.83% (23/24) and 91.30% (21/23), respectively. The expert authority coefficients were 0.895 and 0.870, respectively. The Kendall harmony coefficients of the whole index were 0.134 and 0.178 (both P<0.01), respectively. The final evaluation index system of neonatal breastfeeding nursing quality under the state of mother-infant separation includes 3 first-level indicators, 18 second-level indicators and 82 third-level indicators. Conclusions:The evaluation index system of neonatal breastfeeding nursing quality in the state of mother-infant separation established in this study is highly scientific and reliable, highlighting the characteristics of neonatal breastfeeding nursing work in the state of mother-infant separation, and can provide a reference for the evaluation of neonatal breastfeeding nursing quality in the state of mother-infant separation.
3.Preparation,characterization,in vitro drug release property and cytotoxicity of Periplaneta americana extract-loaded spider fibroin membrane
Huina ZENG ; Chen QING ; Nannan XUE ; Zizhong YANG ; Xiumei WU ; Hewei LI ; Yu ZHAO ; Qiyan LI
China Pharmacy 2023;34(2):168-172
OBJECTIVE To prepare spider fibroin membrane loaded with Periplaneta americana extract, and investigate its characterization, in vitro drug release property and cytotoxicity. METHODS Using natural spider silk collected from Chilobrachys guangxiensis as raw material, P. americana extract as model drug, the drug-loaded spider fibroin membrane (hereinafter referred to as drug-loaded membrane) was prepared by solvent casting method. The material matrix spider fibroin membrane without P. americana extract (hereinafter referred to as blank membrane) was prepared with same method. The membrane structure was characterized by static water contact angle, Fourier infrared chromatography, X-ray diffraction and scanning electron microscopy from different angles; drug release characteristics in artificial saliva were simulated in vitro to evaluate the drug sustained-release performance. MTT assay was adopted to validate the cytotoxicity of drug-loaded membrane. RESULTS The drug-loaded membrane was prepared, and the static water contact angle was less than 90°, which was less than that of blank membrane. The drug-loaded membrane showed the characteristic absorption peak to polypeptide of P. americana extract at 1 500-1 700 cm-1. X-ray diffraction and scanning electron microscopy also proved that the drug was successfully loaded into the pellicle. The release time of the pellicle in artificial saliva was more than 200 min. The MTT test results showed that the cell proliferation rates of blank membrane and drug-loaded membrane were 84.6% and 79.4% (both greater than 70%), respectively, without significant potential cytotoxicity. CONCLUSIONS Drug-loaded membrane prepared with natural spider silk has a certain sustained-release effect in artificial saliva, which can be further developed as a drug sustained-release carrier with excellent biological characteristics and biocompatibility.
4.Application of Leicester assessment package in discipline construction of general practice
Xiumei LIU ; Xinying LIU ; Jiangping WU ; Qinglian WU ; Wugeng XUE ; Xuejuan WEI
Chinese Journal of General Practitioners 2023;22(6):649-653
The contents of general practice discipline construction comprise of orientation, team development, personnel training, scientific research, teaching base establishment and management of the discipline, etc. At present, the weakness in above aspects of general practice discipline construction is still the major challenges in most of the primary healthcare institutions. Our experiences in last 10 years shows that the application of Leicester Assessment Package can effectively promote the general practice discipline development for primary care institutions.
5.Efficacy of group biofeedback in patients with residual schizophrenia
Qianqian XUE ; Changhao CHEN ; Fangmei LI ; Xiumei YU ; Xiaoxiao SI ; Yan YANG
Journal of Clinical Medicine in Practice 2023;27(22):95-99
Objective To observe the effect of group biofeedback in patients with residual schiz-ophrenia(RS).Methods A total of 127 patients with RS were selected as study objects,and ran-domly divided into control group(n=63)and observation group(n=64).The control group re-ceived routine nursing,and the observation group received group biofeedback based on the control group.The Positive and Negative Symptom Scale(PANSS),Personal and Social Performance Scale(PSP)and Self-awareness Inventory(SAI)Questionnaire(treatment compliance)scores were com-pared between the two groups.Results After 12 weeks of intervention,the score of the positive symptoms,the score of negative symptoms and the total score of PANSS in the observation group were significantly lower than those in the control group(P<0.05).The number of patients with PSP scores greater than 70 to 100 and greater than 30 to 70 in the observation group was significantly more than those in the control group,and the number of patients with PSP score of 0 to 30 was significantly less than that in the control group(P<0.05).The SAI score of the observation group after interven-tion was significantly higher than that before intervention and control group,and the number of com-pleted biofeedback therapy in the observation group was significantly more than that in the control group(P<0.05).Conclusion Group biofeedback can promote symptom relief and improve treat-ment compliance in patients with RS.
6.Efficacy of group biofeedback in patients with residual schizophrenia
Qianqian XUE ; Changhao CHEN ; Fangmei LI ; Xiumei YU ; Xiaoxiao SI ; Yan YANG
Journal of Clinical Medicine in Practice 2023;27(22):95-99
Objective To observe the effect of group biofeedback in patients with residual schiz-ophrenia(RS).Methods A total of 127 patients with RS were selected as study objects,and ran-domly divided into control group(n=63)and observation group(n=64).The control group re-ceived routine nursing,and the observation group received group biofeedback based on the control group.The Positive and Negative Symptom Scale(PANSS),Personal and Social Performance Scale(PSP)and Self-awareness Inventory(SAI)Questionnaire(treatment compliance)scores were com-pared between the two groups.Results After 12 weeks of intervention,the score of the positive symptoms,the score of negative symptoms and the total score of PANSS in the observation group were significantly lower than those in the control group(P<0.05).The number of patients with PSP scores greater than 70 to 100 and greater than 30 to 70 in the observation group was significantly more than those in the control group,and the number of patients with PSP score of 0 to 30 was significantly less than that in the control group(P<0.05).The SAI score of the observation group after interven-tion was significantly higher than that before intervention and control group,and the number of com-pleted biofeedback therapy in the observation group was significantly more than that in the control group(P<0.05).Conclusion Group biofeedback can promote symptom relief and improve treat-ment compliance in patients with RS.
7.Formulation and implementation of analgesia and sedation management plan in pediatric patients with mechanical ventilation
Xiumei QI ; Qin WANG ; Xue YANG ; Li ZHANG ; Huixin ZHANG
Chinese Journal of Practical Nursing 2018;34(34):2675-2682
Objective To develop a nurse-driven analgesia and sedation management plan and determine whether the protocol leads positive results.Methods This was a before and after protocol implementation study in 2 pediatric intensive care units of 2 tertiary care hospitals.A total of 77 medical pediatric patients requiring mechanical ventilation with pediatric intensive care unit (PICU) length of stay for at least 24 h were included.Prior to implementation of the protocol,analgesia and sedation was managed by the attending physician's order.Afterwards,post implementation,nurses managed analgesia and sedation following the protocol,including maximum human care,complying the same sedation objective,ordination of the speed according to Comfort Scale and Withdrawal Assessment Tool.Results Before the implementation of protocol,the amount of murphy equivalent was (18.51 ± 13.34) mg/kg,the amount and time of Midazolam were (26.29 ± 13.58) mg/kg and (137.31 ± 104.78) h respectively,mechanical ventilation time was (174.00±90.17)h and time of PICU stay was (12.28 ± 8.86) d;after the implementation of protocol the indexes were (11.46 ± 15.97) mg/kg,(12.01 ± 10.06) mg/kg,(99.44 ±47.29) h,(111.15 ± 58.82) h,(10.88 ± 7.68) d,and there were significant differences (t=0.743-2.595,P<0.05).The incidence of withdrawal after the implementation of protocol (19.44%,7/36) was significantly lower than that before the implementation of protocol (4.88%,2/41),and there was significant difference (x2=3.940,P< 0.05).The coincidence of sedation assessment of after the implementation of protocol was 93.33% (126/135),that of before the implementation of protocol was 83.67% (82/98),and there was significant difference (x2=5.532,P<0.05).Conclusions The plan takes "early analgesia,minimizing sedation,maximizing human concern" as the guiding ideology,and strives to achieve the goal of sedation individualization,clarification of medical and nursing responsibilities,continuity of medical communication,standardization of drug selection and regulation,routinization of withdrawal procedures,routinization of evaluation records,and the management of analgesia and sedation is included in the department.In the key projects of nursing quality management,we should institutionalize the implementation process management.The implementation of the program improves the comfort level of children,thus reducing the stress state of children,reducing the incidence of withdrawal symptoms and unplanned extubation,and ultimately reducing drug consumption and mechanical ventilation time.
8.Practice of Management Mode of Long-term Medication Safety Assessment for Chronic Airway Disease Patients Established by Pharmacists Team of Medical Consortium
Nan ZHANG ; Na ZHANG ; Kuo YAN ; Hongliu LU ; Xiuling LU ; Xiumei YOU ; Taoyuan LI ; Huijuan YANG ; Bing XUE ; Lin PI ; Xinqing ZHANG ; Wenbin XIA
China Pharmacy 2018;29(11):1453-1457
OBJECTIVE:To provide reference for pharmacists to participate in the management of chronic disease. METHODS:A total of 259 patients with chronic airway disease [included asthma and chronic obstructive pulmonary disease (COPD)] met the inclusion criteria were selected from our hospital and 5 community health care centers of medical consortium. These patients received medication safety assessment management,which was led by clinical pharmacists of our hospital with the participation of community pharmacists,including medication safety comprehensive evaluation and risk classification management, follow-up and medication guidance, integrated prescriptions checking, establishment of shared database. 1 years after the implementation,the effectiveness were evaluated by score the relatived indicators in related groups. RESULTS:After a year of the management mode practice,compared with before intervention,the patients'safety medication cognitive ability score in high-risk and low-risk group increased from(4.49±1.26)and(7.31±1.01)to(5.40±1.56)and(7.44±0.91);medication adherence score increased from(4.96±1.21)and(7.08±1.24)to(6.66±1.08)and(7.38±0.98);ACT score from asthma patients increased from (16.15±2.58)and(21.15±1.03)to(16.80±2.57)and(21.64±1.55);CAT score from COPD patients decreased from(25.51± 4.07) and (14.90 ± 3.95) to (24.20 ± 3.96) and (13.80 ± 4.08);the rate of irrational prescription effective identification and intervention by pharmacists increased from 3.6% and 1.4% to 9.4% and 7.6%,respectively. All the differences above were statistically significant (P<0.05). CONCLUSIONS:The participation of pharmacists in long-term medication safety assessment management for chronic airway disease patients can improve patients'safety medication cognitive ability,medication adherence, disease control and the pharmacists'ability of irrational drug use identification and intervention.
9.Practice and Research of Management Mode of Long-term Medication Safety Assessment for the Patients with Chronic Obstructive Pulmonary Disease by Pharmacist Team in Medical Treatment Alliance
Nan ZHANG ; Na ZHANG ; Xiuling LU ; Xiumei YOU ; Bing XUE ; Hongliu LU ; Huijuan YANG ; Wenbin XIA
China Pharmacist 2018;21(3):441-444
Objective:To explore the new management mode of long-term medication safety assessment for chronic obstructive pul-monary disease (COPD) with the participation of pharmacist team in medical treatment alliance to provide reference for pharmacists participating in the management of chronic diseases under the new situation of new medical reform. Methods:Totally 126 patients with COPD meeting the inclusion criteria in our hospital and medical treatment alliance were selected. The patients received medication management including drug safety comprehensive evaluation,classification management,follow-up with medication guidance,integrat-ed prescriptions checking and shared database building etc with the participation of our clinical pharmacists to guide the community pharmacists in coordination with physicians. Results:After one-year management mode practice,the cognitive ability of safe medica-tion and compliance of the patients significantly increased(P<0.01) with significant improvement of control situation of COPD(CAT score) (P<0.05 or P<0.01), and the capacity of effective identification and irrational prescription intervention significantly in-creased (P<0.01). Conclusion:The management mode of long-term medication safety assessment for COPD patients with the partic-ipation of pharmacist team in medical treatment alliance has significant effects on COPD patients' safe medication and drug efficacy, which can improve the professional service of pharmacist team.
10.The effects of PRF and its three growth factors on the proliferation and adhesion of rat ADSCs
Jie GAO ; Mingguo WANG ; Xiumei LI ; Shuai YANG ; Xue LI
Journal of Practical Stomatology 2016;32(4):462-466
Objective:To study the effects of PRF and recombinant hPDGF-AB,TGF-β1 and VEGF on the proliferation and adhe-sion of rat adipose tissue-derived stem cells(ADSCs)in vitro.Methods:ADSCs were cultured with PRF membrane and various do-ses of PDGF-AB,TGF-β1 and VEGF,cell adhesion was examined by adhesion assay after 2 culture,cell proliferation was examined by CCK-8 kit after 1 -7 d culture.Results:Cell adhesion assay showed that the adhesive numbers of rat ADSCs in PRF group were significantly higher than those in the negative group(P <0.05).The adhesive numbers of the ADSCs treated by PDGF-AB showed no significantly difference among different concentration groups(P >0.05).The adhesive numbers of the ADSCs treated by VEGF or TGF-β1 at different concentrations showed significant difference(P <0.05).CCK-8 kit assay showed that at different time points, the A values of ADSCs in PRF group were significantly higher than those of the negative control group(P <0.05).The A values of ADSCs in VEGF or PDGF-AB groups at different concentrations showed significant difference(P <0.05).The A values of rat AD-SCs in TGF-β1 group at different concentrations were lower than those in the negative control group(P <0.05).Conclusion:PRF as a combination of growth factors may stimulate the proliferation and adhesion of rat ADSCs in vitro.PDGF-AB and VEGF may stim-ulate the proliferation of rat ADSCs.TGF-β1 and VEGF may stimulate the adhesion of rat ADSCs in a dose-response manner to some degree.


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