Enamel demineralization, the formation of white spot lesions, is a common issue in clinical orthodontic treatment. The appearance of white spot lesions not only affects the texture and health of dental hard tissues but also impacts the health and aesthetics of teeth after orthodontic treatment. The prevention, diagnosis, and treatment of white spot lesions that occur throughout the orthodontic treatment process involve multiple dental specialties. This expert consensus will focus on providing guiding opinions on the management and prevention of white spot lesions during orthodontic treatment, advocating for proactive prevention, early detection, timely treatment, scientific follow-up, and multidisciplinary management of white spot lesions throughout the orthodontic process, thereby maintaining the dental health of patients during orthodontic treatment.
Humans ; Consensus ; Dental Caries/etiology* ; Dental Enamel/pathology* ; Tooth Demineralization/etiology* ; Tooth Remineralization

The prevalence of Class III malocclusion varies among different countries and regions. The populations from Southeast Asian countries (Chinese and Malaysian) showed the highest prevalence rate of 15.8%, which can seriously affect oral function, facial appearance, and mental health. As anterior crossbite tends to worsen with growth, early orthodontic treatment can harness growth potential to normalize maxillofacial development or reduce skeletal malformation severity, thereby reducing the difficulty and shortening the treatment cycle of later-stage treatment. This is beneficial for the physical and mental growth of children. Therefore, early orthodontic treatment for Class III malocclusion is particularly important. Determining the optimal timing for early orthodontic treatment requires a comprehensive assessment of clinical manifestations, dental age, and skeletal age, and can lead to better results with less effort. Currently, standardized treatment guidelines for early orthodontic treatment of Class III malocclusion are lacking. This review provides a comprehensive summary of the etiology, clinical manifestations, classification, and early orthodontic techniques for Class III malocclusion, along with systematic discussions on selecting early treatment plans. The purpose of this expert consensus is to standardize clinical practices and improve the treatment outcomes of Class III malocclusion through early orthodontic treatment.
Humans ; Malocclusion, Angle Class III/classification* ; Orthodontics, Corrective/methods* ; Consensus ; Child

Objective To systematically evaluate the qualitative studies on the care experience of caregivers for primary malignant bone tumors patients,in order to provide references for the construction of bone tumor support care system.Methods The Cochrane Library,PubMed,Embase,CNKI,Wanfang Database,VIP database,and China Biomedical Literature Database were searched by computer to collect qualitative studies on the care experience of caregivers of malignant bone tumors patients from the establishment of the databases to November 2022.The quality of the literature was evaluated using the Joanna Briggs Institute(JBI)Quality Evaluation Criteria for Quality Research in Evidence-Based Health Care Centers(2016),and the results were integrated by a pooled integration approach.Results A total of 12 studies were included;48 themes were extracted and summarized into 9 categories,which were combined into 3 integrated results.Integration result 1 is obvious physical and mental disturbance.Integration result 2 is multiple role maladaptation.Integration result 3 is positive growth after adjustment.Conclusion Caregivers of patients with malignant bone tumors have serious physical and mental burden and are eager for multiple support.It is suggested that medical staff pay attention to the multi-dimensional needs of patients,formulate personalized support strategies,help caregivers adapt and transform their roles,and promote the post-traumatic growth of caregivers.

【Objective】 To analyze and mine the prescription rules of traditional Chinese medicine enema treatment of chronic kidney disease （CKD） in CNKI platform journals based on data mining and network pharmacology so as to find high-frequency core Chinese medicines and predict the potential targets of core Chinese medicines and explore the mechanism of action of core Chinese medicines in the treatment of CKD. 【Methods】 Taking CNKI as the data source， we retrieved the clinical literature of traditional Chinese medicine enema in the treatment of CKD. SPSS modeler 18.0 statistical software was used for statistical processing and association rule analysis. IBM SPSS statistics 21 statistical software was used for cluster analysis. BATMAN-TCM and TCMSP were used to retrieve the effective components and related targets of drugs. Genecards， OMIN， Drugbank， DisGenet， TTD， and PharmGkb databases were used to retrieve disease-related targets， and Venny platform was used to screen disease and drug intersection targets. We used STRING database to obtain relevant documents， Cytoscape 3.8.2 software for visual analysis， Metascape database for enrichment analysis， Wechat website to draw bubble diagram， and AutoDockTools-1.5.6 software for molecular docking prediction. 【Results】 We selected 276 effective prescriptions involving 120 traditional Chinese medicines. The frequency of 19 traditional Chinese medicines was more than 10. Totally 18 core drug combinations were obtained. Cluster analysis could be divided into four categories. The visual net-work analysis shows that “rhubarb， dandelion， oyster， Salvia miltiorrhiza and aconite” are highly correlated and occupy the core position. Through the prediction of the potential targets of five core drugs， 659 “drug disease” intersection targets and 173 core targets were obtained， of which “MAPK1， AKT1 and STAT3” are the key targets， “progesterone， neocryptotanshinone Ⅱ and emodin”. It is predicted that it may play a role in “PI3K Akt signal pathway， MAPK signal pathway， JAK-STAT signal pathway”. Molecular docking showed that the key components have good binding activity with key targets. 【Conclusion】 Based on data mining and network pharmacology， traditional Chinese medicine enema treatment of CKD mainly uses rhubarb as the main drug， assisting warming yang to remove blood stasis and turbidity relief drugs. The key components of its core drug can act on PI3K-Akt by regulating key targets such as PIK3R1. Signal pathways and other pathways play a role in providing new ideas for the treatment of this disease with traditional Chinese medicine enema， medication strategies for clinical prescriptions， and a basis for follow-up further research.

Objective:To investigate the in vitro inhibitory activity of a novel class Ⅰ and Ⅱb selective histone deacetylase (HDAC) inhibitor, purinostat mesylate (PM) , in diffuse large B-cell lymphoma and its mechanism.Methods:The 3- (4,5-dimethylthiazol-2-yl) -2,5-diphenyl tetrazolium bromide method was used to detect the effect of PM on cell proliferation. The effects of PM on cell cycle and apoptosis were detected by flow cytometry. The acetylation levels of HDAC substrate, cell cycle protein, apoptosis-related protein, and oncogene protein expression were detected by Western blot.Results:PM significantly inhibited the proliferation of lymphoma SUDHL-4 and SUDHL-6 cells and increased the acetylation levels of HDAC substrates H3, H4, and α-tubulin. In cell cycle experiments, PM induced G 0/G 1 phase arrest in SUDHL-4 and SUDHL-6 cells. Western blot experiment showed that PM could significantly downregulate the expression of cyclin-dependent kinases Cdk2, Cdk4, Cdk6, cyclin D1, and cyclin E and upregulate the expression of CDK inhibitor protein p21. In the apoptosis experiment, PM could induce the apoptosis of SUDHL-4 and SUDHL-6 cells. Western blot experiment demonstrated that PM promoted endogenous apoptosis by activating caspase-3 kinase and affecting antiapoptotic protein Bcl-2. In addition, PM could downregulate the expression of oncogene marker proteins MYC, IKZF1, and IKZF3. Conclusion:PM has an efficient biological activity in vitro for diffuse large B-cell lymphoma, including double-hit lymphoma, and provides valuable experimental evidence for PM in clinical treatment.

OBJECTIVETo dynamically observe the effects of electroacupuncture (EA) on repair of gastric mucosal lesion in rats with gastric ulcer, and to explore the time-effect relationship and molecular mechanism of EA for gastric ulcer.

METHODSA total of 72 SD rats were randomly assigned to a normal group, a model group, a acupoint group and a sham acupoint group, and each group were further divided into a 1-day subgroup, a 4-day subgroup and a 7-day subgroup, 6 rats in each subgroup. The rat model of gastric ulcer was established by using intragastric administration of ethyl alcohol. The rats in the acupoint group were treated with EA at"Zusanli"(ST 36) and"Liangmen"(ST 21); the rats in the sham acupoint group were treated with EA at points 5 mm next to"Zusanli"(ST 36) and"Liangmen"(ST 21); the EA was given 30 min per treatment, once a day. The rats in the normal group and model group were treated with immobilization for 30 min per day, and no EA was given. PR-PCR method was applied to test the expression of proliferating cell nuclear antigen (PCNA) and substance P (SP); Western blot method was applied to test the expression of neurotensin (NT).

RESULTSAfter 1-day treatment, the ulcer index in the model group was higher than that in the normal group (<0.01), and the expression of PCNA, SP and NT was decreased (<0.01, <0.05); compared with the model group and sham acupoint group, the ulcer index was decreased in the acupoint group (both <0.05), and the expression of PCNA and SP was up-regulated (all <0.05) while that of NT was up-regulated (both <0.01). After 4-day treatment, the ulcer index in the model group was reduced but still higher than that in the normal group (<0.05), and the expression of PCNA, SP and NT was up-regulated and higher than that in the normal group (all <0.01); the ulcer index in the acupoint group was similar to that in the normal group (>0.05), and the expression of PCNA and SP was lower than that in the model group (<0.01, <0.05), and the expression of NT was not significantly different from that in the model group (>0.05). After 7-day treatment, the differences of indexes above were not significant among the four groups (all >0.05).

CONCLUSIONEA at acupoints of stomach meridian has two-way regulation on PCNA and SP and improve the expression of NT in different pathological state of gastric ulcer, which could further improve the repair of gastric ulcer.

Objective To investigate the effects of intrathecal injection of α-cyano-4-hydroxy-cinnamate (4-CIN) in rats with neuropathic pain induced by chronic constriction injury of sciatic nerve (CCI).Methods Eighteen male SD rats were divided randomly into 3 groups(n=6):sham group (group S),CCI model group (group C0) and 4-CIN group (group C1).Group C0 and C1 were operated with the model of neuropathic pain induced by chronic constriction injury of sciatic nerve ; and group S were treated as sham operated rats.Two days after operation,group C1 received intrathecal injection of 100 μmol 4-CIN dissolved in 10％ DMSO 10 μl,while group C0 received intrathecal injection of 10％ DMSO 10 μl only.The paw withdrawal thermal latency(PWTL) and paw withdrawal mechanical threshold(PWMT) were tested 1 d before operation and 1 d,3 d,7 d,10 d,14 d after operation(T0-5).Results The basic values of PWMT and PWTL before operation showed no statistically significant differences among the three groups.On T1-5,the PWMT((11.71 ±2.81) g,(9.76± 1.00) g,(8.22± 1.33) g,(6.50± 1.48) g,(4.67± 1.03) g) and PWTL((11.36±2.18) s,(11.60±2.54) s,(8.54± 1.42) s,(7.59± 1.00) s,(6.88± 0.42) s) in group C0 were significantly lower than those in group S (P＜0.05).However,there were no significant differences between group S and C1 on T2-5(P＞0.05).Conclusion Intrathecal administration of 4-CIN can attenuate neuropathic pain in rats induced by CCI.

OBJECTIVE: To determine the changes of Mu-opioid receptor (Mor) and neuron-restrictive silencer factor (NRSF) in periaquductal gray (PAG) in mouse models of remifentanil-induced postoperative hyperalgesia. METHODS: Thirty-two Kun-Ming mice were randomly divided into 4 groups (8 mice in each group): Group C (mice underwent a sham procedure and saline was infused subcutaneously over a period of 30 min), Group I (mice underwent a surgical incision and the same volume of saline), Group R (mice underwent a sham procedure and remifentanil was infused subcutaneously at the moment of surgical incision over a period of 30 min), and group IR (mice underwent a surgical incision and remifentanil). Paw withdrawal mechanical threshold (PWMT) and paw withdrawal thermal latency (PWTL) tests were performed 24 h before the operation and 2, 6, 24, and 48 h after the operation. The specimens were collected after behavioral testings at 48 h. The expressions of Mor and NRSF in mice's PAG neurons were determined by Western blot. RESULTS: Mechanical allodynia and thermal hyperalgesia developed in Group I, R and IR (P<0.01). Intraoperative infusion of remifentanil enhanced mechanical allodynia and thermal hyperalgesia in mice with planta incision (P<0.01). In Group R and Group IR, the expression of Mor was significantly lower (P<0.01) and NRSF was significantly higher (P<0.01) when compared with Group C and Group I. CONCLUSION Intraoperative infusion of remifentanil induces postoperative hyperalgesia in mouse models, accompanied with decreased expressions of Mor and increased of NRSF level in PAG neurons, which may be involved in remifentanil induced hyperalgesia.
Animals ; Disease Models, Animal ; Hyperalgesia ; chemically induced ; Mice ; Pain, Postoperative ; Periaqueductal Gray ; drug effects ; metabolism ; Piperidines ; administration & dosage ; Receptors, Opioid, mu ; metabolism ; Remifentanil ; Repressor Proteins ; metabolism