1.Minimal anchorage invasive extraction of horizontally impacted mandibular third molar: A case report
Wengying ZOU ; Qun DAI ; Yinhua DAI ; Qiong YANG ; Ziyan LIU
Journal of Practical Stomatology 2016;32(5):738-740
Horizontal impacted lower third molars are often adjacent to the inferior alveolar nerve,direct extraction may cause trauma and complications,the most serious complication is inferior alveolar nerve damage.This article reports one case of horizontal impacted lower third molar adjacent to the mandibular nerve canal,the molar was extracted by minimal anchorage pulling for 1 week and then removed smoothly.
2.The effects of HIF-1α on the growth of transplanted oral cancer in nude mice and on the expression of CEACAM1 and VEGF-C in the tumor
Yinhua DAI ; Qun DAI ; Wenying ZOU ; Qiong YANG ; Ziyan LIU ; Yaoyu DONG
Journal of Practical Stomatology 2017;33(4):459-463
Objective:To explore the effects of HIF-1α on the growth of transplanted oral cancer and on the expression of CEACAM1 and VEGF-C in the tumor.Methods:Nude mouse model of oral cancer was established by transplantation of Tca8113 cells respectively treated by HIF-1α siRNA and negative control siRNA subcutaneously into right axillary region of nude mice.3 weeks after transplantation the mice were sacrificed,the tumor volum and weight were measured.The tumor tissue was examined by ELISA method for the detection HIF-1α protein expression,by real-time quantitative PCR and western blot for the detection of mRNA and protein expression of HIF-1α,CEACAM1 and VEGF-C respectively.Results:The volume and weight of the transplanted tumor in HIF-1 α siRNA group were significantly less than those in the control group(P<0.05),CEACAM1 and VEGF-C mRNA and protein were down-regulate in HIF-1α siRNA group (P<0.05).Conclusion:HIF-1α expression is positively related to the expression of CEACAM1 and VEGF-C in the regulation of oral tumor growth.
3.Risk Factors Related with Reproductive Endocrinology Disorder in Chinese Women of Child-bearing Age with Epilepsy
Liujing CHEN ; Liemin ZHOU ; Jueqian ZHOU ; Qian WANG ; Ziyan FANG ; Ziyi CHEN ; Shuda CHEN ; Libai YANG ; Qiling DAI
Journal of Sun Yat-sen University(Medical Sciences) 2010;31(2):302-305,308
[Objective]This study was designed to identify the risk factors related with reproductive endocrinology disorder in Chinese women of child-bearing age with epilepsy.[Methods]The clinical data of 102 women with epilepsy were collected.The patient were grouped according to seven aspects(seizure onset age,seizure type,seizure frequency,duration of epilepsy,AED type,age of start AED therapy and duration of therapy)and the contribution of these factors in development of PCOS and its components were analyzed.[Results]The incidence of hyperandrogenemia in the patients with an early onset age(≤14 years old)was higher than the ones with an onset age>14 years old.Onset age≤14 was the risk factor of hyperandrogenemia in logistic regression analysis.The incidence of a/oligomenorrhea,polycystic ovaries,hyperandrogenemia and PCOS in the valproate-treated women were 40.63%,50.00%,15.65%,and 34.38%,respectively,which were higher than the no-therapy group and nonvalproate treated group.Valproate therapy was the risk factor of PCOS and its components.[Conclusion]Valproate therapy was the risk factor of PCOS and its components in Chinese women of child-bearing age with epilepsy.Onset age≤14 was the risk factor of hyperandrogenemia.
4.Ginger oil-loaded transdermal adhesive patch treats post-traumatic stress disorder
Xingshuang Song ; Yizhi Zhang ; Ziyan Tang ; Jing Dai ; Yanping Wu ; Guiyu Huang ; Hong Niu ; Yaxin Wang ; Xu Jin ; Lina Du
Journal of Traditional Chinese Medical Sciences 2024;11(3):316-329
Objective:
To find a viable alternative to reduce the number of doses required for the patients with post-traumatic stress disorder (PTSD), and to improve efficacy and patient compliance.
Methods:
In this study, we used ginger oil, a phytochemical with potential therapeutic properties, to prepare ginger oil patches. High-performance liquid chromatography (HPLC) was used to quantify the main active component of ginger oil, 6-gingerol. Transdermal absorption experiments were conducted to optimize the various pressure-sensitive adhesives and permeation enhancers, including their type and concentration. Subsequently, the ginger oil patches were optimized and subjected to content determination and property evaluations. A PTSD mouse model was established using the foot-shock method. The therapeutic effect of ginger oil patches on PTSD was assessed through pathological sections, behavioral tests, and the evaluation of biomarkers such as tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), brain-derived neurotrophic factor (BDNF), and melatonin (MT).
Results:
The results demonstrated that ginger oil patches exerted therapeutic effects against PTSD by inhibiting inflammatory responses and modulating MT and BDNF levels. Pharmacokinetic experiments revealed that ginger oil patches maintained a stable blood drug concentration for at least one day, addressing the rapid metabolism drawback of 6-gingerol and enhancing its therapeutic efficacy.
Conclusions
Ginger oil can be prepared as a transdermal drug patch that meets these requirements, and the bioavailability of the prepared patch is better than that of oral administration. It can improve PTSD with good patient compliance and ease of administration. Therefore, it is a promising therapeutic formulation for the treatment of PTSD.
5.Application of digital implant guide plate in oral implant restoration
LIU Ziyan ; DAI Qun ; XIAO Fang
Journal of Prevention and Treatment for Stomatological Diseases 2019;27(5):337-340
Digital implant guides have enabled "repair-oriented" implant restoration to become a reality by allowing an implant to be designed for an ideal site, maximizing the use of existing alveolar bone, and increasing the predictability of the restorative effect. This paper reviews the classification of digital guides and the related factors affecting the accuracy of digital guides to provide a reference for clinical doctors in practical applications. Digital guides can be divided into the categories of mucosal support, bone support, dental support and mixed support according to the retention mode. The manufacture and use of digital implant guides involve a series of processes, such as data acquisition, design and manufacture of the implant guide, and guided surgery. The accuracy of digital implant guides depends on all accumulated and interactive errors involved in the process from data acquisition to surgery. According to the process of guide plate fabrication and implant placement, errors in all aspects can be reduced to improve the accuracy of guide plate application.
6.Effect of intensive isometric strength training of hip adductor on functional ankle instability
Hui YU ; Ziyan CHEN ; Ruixiang DAI ; Xiaodong WANG
Chinese Journal of Rehabilitation Theory and Practice 2022;28(2):125-131
Objective To explore the effect of intensive hip adductor isometric strength training on the balance ability of functional ankle joint instability. Methods From November, 2019 to January, 2020, 18 college students with functional ankle instability were recruited from a university in Shenzhen and randomly divided into control group (n = 9) and experimental group (n = 9). Both groups received ankle stability training, and the experimental group received isometric muscle strength training of hip adductor in addition, one hour a time, three times a week, for four weeks. The Cumberland Ankle Instability Assessment Questionnaire (CAIT), Y Balance Test (YBT), Balance-check balance equipment and Back-check hip adductor maximum isometric strength test were performed before and after training. Results After training, the scores of CAIT, YBT and balance-check increased in both groups (t > 2.540, P < 0.05); the strength of adductor hip muscle significantly increased in the experimental group (t = 8.485, P < 0.001). The d-value of CAIT score, YBT distance, the score of Balance-check, and the strength of adductor hip muscle were more in the experimental group than in the control group (t > 2.168, P < 0.05); the d-value of the average rotation speed, the maximum rotation speed and the balance level were less in the experimental group than in the control group (t > 2.804, P < 0.05). Conclusion Hip adductor isometric muscle strength training may promote the recovery of the balance after functional ankle instability.
7.Comparative analysis of modified STER and endoscopic submucosal excavation in the treatment of paracardial submucosal tumors
Yabo Zhou ; Kaiguang Zhang ; Guizhou Wang ; Baogang Chen ; Qifeng Lu ; Shuangping Wang ; Ziyan Dai
Acta Universitatis Medicinalis Anhui 2022;57(2):320-324
Abstract
To investigate the curative effects of modified submucosal tunnel endoscopic resection(STER) and endoscopic submucosal resection(ESE) in the treatment of paracardial submucosal tumors. Eighty-four patients with paracardial submucosal tumors diagnosed through digestive endoscopy and endoscopic ultrasonography signed informed consent forms, and they were randomly divided into observation group(n=42) and control group(n=42) with the help of the table of random numbers. Patients in the control group received ESE treatment. Patients in the observation group received modified STER surgery.The operation time, average hospitalization time and treatment cost of patients in STER group were(61.32±32.01) min,(8.11±2.42) d and(21.7±3.4) thousand Chinese Yuan respectively, which were better than those in ESE group(87.63±34.09) min,(10.05±2.84) d and(25.9±3.9) thousand Chinese Yuan. The difference was statistically significant(P<0.05). The average number of titanium clips used in the observation group was(5.00±1.37), and in the control group the average number was(4.68±1.25). The difference was not statistically significant. In the STER group, there were 2 cases of intraoperative perforation and 1 case of delayed bleeding. In the ESE group, there were 4 cases of intraoperative perforation and 3 cases of intraoperative uncontrollable bleeding. The incidence of postoperative complications in the STER group was lower than that in the ESE group. The postoperative pathological examination revealed that in both groups the tumors were mostly stromal tumor and leiomyoma. A few of the patients were suffering from lipomas and schwannomas. There was no significant difference in terms of the pathological composition of the patients between the two groups.
8.Spatial-temporal clustering analysis of hand, foot and mouth disease in Hunan Province in 2016 - 2020
Shanlu ZHAO ; Lin YANG ; Kaiwei LUO ; Shikang LI ; Shuaifeng ZHOU ; Qianlai SUN ; Fan ZHANG ; Zhihui DAI ; Ge ZENG ; Hao YANG ; Ziyan LIU ; Shengbao CHEN ; Shixiong HU
Journal of Public Health and Preventive Medicine 2022;33(2):7-10
Objective To analyze the spatial and temporal characteristics of hand, foot and mouth disease (HFMD) in Hunan Province from 2016 to 2020. Methods The data of HFMD in Hunan Province from 2016 to 2020 were collected from China's Disease Prevention and Control Information System. HFMD spatial autocorrelation analysis was conducted by ArcGIS 10.2 software at county level, and spatial-temporal scan statistical analysis was performed by SaTScan 9.7 software. Results A total of 714 157 cases was reported in Hunan Province during 2016-2020, with an average annual incidence rate of 208.36/100 000. Global spatial autocorrelation showed that HFMD had a positive spatial correlation on the county scale in Hunan Province during this period. Local spatial autocorrelation indicated that the hot spots were mainly concentrated in the north of central Hunan, the east of central Hunan and the west of Hunan. Spatial-temporal scanning analysis revealed the first class clusters (RR = 6.65, P< 0.001) covering 34 counties in northern and central Hunan, mainly distributed in Yueyang City, Changsha City, Zhuzhou City, Yiyang City and Xiangtan City from May 2018 to June, and the second class clusters (RR = 3.02, P < 0.001) covering 40 counties in western Hunan and central and southwest Hunan from April 2016 to June 2016. Conclusion HFMD incidence exhibits seasonal and regional characteristics in Hunan Province. The prevention and control of HFMD should be guided by combining the characteristics of spatial-temporal clustering.
9.3D printed orthopedic insoles for flatfoot: a systematic review
Chenglan HUANG ; Yutong HOU ; Yunxiao YANG ; Hong ZENG ; Ziyan ZHANG ; Wenkuan ZHAO ; Zanbo WANG ; Chunlei SHAN ; Kerong DAI ; Bin CAI ; Jinwu WANG
Chinese Journal of Rehabilitation Theory and Practice 2023;29(4):416-422
ObjectiveTo review the classification of orthopedic insoles, common techniques of 3D printing orthopedic insoles, common materials and their application for flatfoot. MethodsLiteratures were retrieved from PubMed, Web of Science, CNKI and Wanfang Data from 2012 to 2022, and the relevant contents were summarized. ResultsA total of ten studies were finally included, from 5 countries, involving 290 participants, which published from 2019 to 2022. Orthotic insoles were classified as prefabricated, semi-custom, and custom, while custom ones were classified as traditional custom and 3D printed custom. 3D printed orthotic insoles were often made with selective laser sintering, fused deposition modeling (FDM) and PolyJet printing technologies, and commonly used materials included ethylene-vinyl acetate (EVA), polylactic acid, thermoplastic polyurethane, polyamide, and polypropylene. For flatfoot, 3D printed orthotic insoles could improve plantar pressure, relieve foot pain and the combined use of insole posting could control rearfoot valgus. Conclusion3D printed custom insoles can be made more efficiently and accurately than traditional custom insoles. The printing technologies and materials often chosen for 3D printed orthotic insoles are mainly FDM and EVA. 3D printed orthotic insoles is effective on plantar pressure, comfort and foot movement function of flatfoot.