关节镜下克氏针联合界面螺钉固定治疗Schatzker Ⅲ型胫骨平台骨折的疗效分析

目的 研究关节镜辅助下经皮克氏针联合界面螺钉固定治疗Schatzker Ⅲ型胫骨平台骨折的可行性和疗效分析。方法 自2008年5月至2018年1月,中国人民解放军联勤保障部队第910医院骨科采用克氏针联合界面螺钉固定治疗Schatzker Ⅲ型胫骨平台骨折20例。所有病例均采用关节镜辅助,结合骨折微创复位技术进行复位,采用多根克氏针联合界面螺钉固定并结合异体骨植骨。手术后采用HSS评分标准对膝关节功能进行评估。结果 本组20例患者均获随访,术后随访2 ～ 10年,平均（6.7±2.2）年。术后患者切口均Ⅰ期愈合,骨折均达骨性愈合,愈合时间为2.5 ～ 6个月,平均3.1个月,膝关节活动度为0° ～ 130°。末次随访时膝关节功能HSS评分： 优18例,良1例,可1例,优良率95.0%。所有患者均未出现下肢深静脉血栓、切口感染、膝关节僵硬。结论 关节镜辅助下经皮克氏针联合界面螺钉固定治疗Schatzker Ⅲ型骨折具有直视下精确复位、损伤小、愈合快,可一期处理关节腔内其他损伤,有利于功能快速康复,并发症少等优点。     

Less reduced gray matter volume in the subregions of superior temporal gyrus predicts better treatment efficacy in drug-naive,first-episode schizophrenia

Decreased gray matter volume (GMV) in the superior temporal gyrus (STG) has been implicated in the neurophysiology of schizophrenia. However, it remains unclear whether volumetric reduction in the subregions of the STG can predict treatment efficacy for schizophrenia. Our cohort included 44 drug-naive, first-episode patients, 42 unaffected siblings and 44 healthy controls. Voxel-based morphometry and pattern classification were utilized to analyze the acquired imaging data as per the anatomical subdivision by a well-defined brainnetome atlas. The patients presented lower GMV values in left TE1.0/1.2 (TE, anterior temporal visual association area) than the siblings, and lower GMV values in the left/right TE1.0/1.2 and left A22r (rostral area 22) than the controls. A positive correlation is observed between the GMV values in the right A38l (lateral area 38) and baseline Positive and Negative Syndrome Scale (PANSS) total scores in the patients. Support vector regression (SVR) results exhibited a significant association between predicted (based on the GMV values in the right A38l) and actual symptomatic improvement based on the reduction ratio of the PANSS total scores (r = 0.498, p = 0.001). Our results suggest that normal structure in the right A38l of the STG may be an important factor indicative of the effects of antipsychotic drugs, which can be potentially used to monitor drug effects for first-episode patients at an early stage in clinical practice.

     

Effects of Cognitive-Behavioral Therapy Based Music Therapy in Korean Adolescents with Smartphone and Internet Addiction

Objective The purpose of this study was to evaluate the effects of adding music therapy (MT) to cognitive-behavioral therapy (CBT) on symptoms of smartphone/internet addiction and psychiatric comorbidities. Methods Overall, 155 patients diagnosed with addiction were assigned to either the CBT-MT group or CBT group. Both groups received CBT for 8 weeks, while the CBT-MT group received additional MT. The intervention was completed by 67 and 71 participants in the CBT-MT and CBT groups, respectively. Results The total scores of Young Internet Addiction Scale (YIAT) and Smartphone Addiction Proneness Scale (SAPS) decreased significantly (p<0.001 for both) in both groups, while the total scores of State Anxiety Inventory for Children (SAIC) (p<0.001), Trait Anxiety Inventory for Children (TAIC) (p<0.001), Conners-Wells’ Adolescent Self-Report Scale-Short form (CASS(S)) (p=0.048), and Barratt Impulsiveness Scale-11 (BIS-11) (p<0.001) decreased only in the CBT-MT group. The decrements in YIAT (p=0.025), SAIC (p=0.043), TAIC (p=0.011), and BIS-11 (p=0.012) in the CBT-MT group were significantly greater than those in the CBT group. Conclusion Combined MT and CBT improved the symptoms of smartphone/internet addiction, anxiety, and impulsivity in adolescents. This combination could therefore be an effective treatment of smartphone or internet addiction along with behavioral disorders such as anxiety and impulsivity.     

Effects of Organic Light-Emitting Diodes on Circadian Rhythm and Sleep

ObjectiveOrganic light-emitting diodes (OLEDs) emit less blue light than traditional light-emitting diodes (LEDs), and we previously found that early-night OLED light exposure (LE) delays the melatonin phase by less than LED at a color temperature of 4,000 K. As a follow-up study, we investigated the effects of OLED and LED at a different color temperature (3,000 K) on melatonin profile, sleep, and vigilance. Methods24 healthy subjects (27.5±5.1 years) were exposed to three light conditions [OLED, LED, and dim light (DL)] from 17:30 to 24:00, in a random order and with a 1-week interval. Saliva samples for melatonin were taken every hour from 18:00 to 24:00. Polysomnography (PSG) and a psychomotor vigilance test (PVT) were performed. ResultsMelatonin onset time was significantly delayed under OLED and LED compared with DL, with no significant difference between OLED and LED. The mean melatonin level at 24:00 under LED was lower than that under DL, but there was no significant difference between OLED LE and DL. The percentage of slow wave sleep (N3) in LED was significantly lower than in OLED. ConclusionExposure to light in the evening can suppress melatonin secretion late at night and disturb deep sleep, and those effects are slightly worse under LED than OLED.     

大学生成人儿童化问卷的初步编制

目的 探索成人儿童化的内在结构,为进一步认识当代大学生的成人儿童化现象提供量化依据.方法 采用开放式访谈,专家评价、参阅相关理论文献的基础上构建问卷.结果 项目分析后组成的10题问卷的Cronbach＇s α信度系数和Guttman Split-Half信度系数在0.717～0.816之间,验证性因素分析结果,卡方自由度比,RMSEA,GFI,AGFI,NFI,IFI拟合指标分别为1.636,0.062,0.946,0.907,0.922,0.919.结论 成人儿童化的内在结构包括卡通化行为、规避成长和青涩化评价3个维度,该问卷具有良好的信效度.     

Potential Roles of Bone Morphogenetic Protein 9 in the Odontogenic Differentiation of Dental Pulp Cells

IntroductionThe differentiation of dental pulp cells (DPCs) plays an important role in the repair of dental pulp injury. Bone morphogenetic protein 9 (BMP9) is one of the most effective BMPs to induce the differentiation of stem cells. However, the role of BMP9 in promoting the odontogenic differentiation of DPCs and dentinogenesis is worth knowing.MethodsFluorescence in situ hybridization and immunohistochemistry staining were performed to detect the BMP9 expression in human dental pulp. BMP9 was overexpressed in human DPCs (hDPCs), and the mineralization of hDPCs was tested by alkaline phosphatase staining and alizarin red staining. The expression of odontogenic differentiation-related genes was examined by quantitative real-time polymerase chain reaction and western blotting. The subcutaneous transplantation experiment was performed to test the odonto-induction ability of BMP9 in vivo. The rat direct pulp-capping experiment was performed to test the function of BMP9 in promoting dentin formation.ResultsBMP9 showed an increased expression in odontoblast layer at both the mRNA and protein levels. BMP9 enhanced the mineralization and induced the expression of odontogenic differentiation-related genes in hDPCs. More mineralized nodules, and increased expression of dentin sialophosphoprotein (DSPP) and dentin matrix protein-1 (DMP1) were detected in the beta-tricalcium phosphate scaffold/cells composites of BMP9 group compared with the control group. Meanwhile, there was thicker reparative dentin formation in the BMP9 group in the rat pulp exposure experiment.ConclusionsBMP9 participates in the process of DPC differentiation and promotes DPC mineralization and dentinogenesis. BMP9 might be a potential therapeutic target in the repair of dental pulp injury.     

Effect of enhancer of zeste homolog 2 inhibitor GSK126 on the proliferation and apoptosis of tongue squamous cell carcinoma

目的 观察zeste基因增强子同源物2（EZH2）抑制剂GSK126对人舌鳞状细胞癌细胞体外增殖与凋亡的影响,并探讨其相关机制,为舌鳞状细胞癌的临床治疗提供新思路。方法 将不同浓度的GSK126作用于舌鳞状细胞癌CAL-27细胞,通过甲基噻唑基四唑（MTT）、克隆形成、5-乙炔基-2’脱氧尿嘧啶核苷（EdU）荧光染色实验检测药物对细胞增殖能力的影响;采用Hoechst33342荧光染色、JC-1法观察细胞凋亡情况;采用Western blot法检测CAL-27细胞内相关蛋白细胞外调节蛋白激酶（ERK）、磷酸化的细胞外调节蛋白激酶（p-ERK）、Bax、Bcl-2、Cleaved caspase-9的表达水平。结果 GSK126能抑制CAL-27细胞增殖并对细胞凋亡有促进作用。GSK126能下调细胞内p-ERK、Bcl-2的表达水平,同时可增加Bax、Cleaved caspase-9的表达（P<0.05）。结论 GSK126可抑制舌鳞状细胞癌CAL-27细胞的增殖,并且能促进其凋亡,其机制可能与抑制MEK/ERK信号通路以及激活Bax/Bcl-2通路有关。     

Biomechanical analysis of occlusal modes on the periodontal ligament while orthodontic force applied

Clinical Oral Investigations - The study objective was to investigate four common occlusal modes by using the finite element (FE) method and to conduct a biomechanical analysis of the periodontal...     

Metabolic syndrome and masticatory hypofunction: a cross-sectional study

Odontology - The objective of this paper is to clarify the rate of abdominal obesity (AO), waist-to-height ratio (WHtR), metabolic syndrome (MetS) and determine the relationship with the...