Cemental tear is a rare and indetectable condition unless obvious clinical signs present with the involvement of surrounding periodontal and periapical tissues. Due to its clinical manifestations similar to common dental issues, such as vertical root fracture, primary endodontic diseases, and periodontal diseases, as well as the low awareness of cemental tear for clinicians, misdiagnosis often occurs. The critical principle for cemental tear treatment is to remove torn fragments, and overlooking fragments leads to futile therapy, which could deteriorate the conditions of the affected teeth. Therefore, accurate diagnosis and subsequent appropriate interventions are vital for managing cemental tear. Novel diagnostic tools, including cone-beam computed tomography (CBCT), microscopes, and enamel matrix derivatives, have improved early detection and management, enhancing tooth retention. The implementation of standardized diagnostic criteria and treatment protocols, combined with improved clinical awareness among dental professionals, serves to mitigate risks of diagnostic errors and suboptimal therapeutic interventions. This expert consensus reviewed the epidemiology, pathogenesis, potential predisposing factors, clinical manifestations, diagnosis, differential diagnosis, treatment, and prognosis of cemental tear, aiming to provide a clinical guideline and facilitate clinicians to have a better understanding of cemental tear.
Humans ; Dental Cementum/injuries* ; Consensus ; Diagnosis, Differential ; Cone-Beam Computed Tomography ; Tooth Fractures/therapy*

Purpose To evaluate the value of 3D amide proton transfer imaging(3D APT)and reduced field-of-view diffusion weighted imaging(rFOV DWI)in predicting histologic grade of rectal adenocarcinoma.Materials and Methods A total of 64 cases of rectal adenocarcinoma confirmed by pathology were analyzed from February 2020 to April 2023,with 28 cases in the high and 36 cases in the medium-low differentiation group,retrospectively.MRI sequences including reduced field-of-view high-resolution T2WI(rFOV T2WI),rFOV DWI and 3D APT before surgery.Two neuroradiologists delineated the solid part of the tumor layer by layer,and extracted its apparent diffusion coefficient(ADC)and magnetization transfer ratio asymmetry(MTRasym)values.Combined-parameter model(MTRasym+rADC)was constructed by binary Logistic regression.The efficacy of the single-parameter and combined-parameter model was assessed using receiver operating characteristic curve.Results The mean value of MTRasym of the medium-low group[(2.93±0.61)%]was higher than that of high differentiation group[(1.74±0.63)%](t=-7.60,P＜0.001),and the mean value of rADC of the medium-low group[(0.98±0.17)×10-3 mm2/s]was lower than that of the high differentiation group[(1.19±0.18)×10-3 mm2/s](t=4.50,P＜0.001).In the identification of histopathological grades of rectal adenocarcinoma,receiver operating characteristic analysis showed that compared with MTRasym and rADC,the combined parameter model had the highest diagnostic performance,with an area under the curve of 0.94,sensitivity and specificity of 0.86 and 0.96.Conclusion 3D APT and rFOV DWI are helpful in identifying the histopathological grade of rectal adenocarcinoma.

Purpose To evaluate the value of 3D amide proton transfer imaging(3D APT)and reduced field-of-view diffusion weighted imaging(rFOV DWI)in predicting histologic grade of rectal adenocarcinoma.Materials and Methods A total of 64 cases of rectal adenocarcinoma confirmed by pathology were analyzed from February 2020 to April 2023,with 28 cases in the high and 36 cases in the medium-low differentiation group,retrospectively.MRI sequences including reduced field-of-view high-resolution T2WI(rFOV T2WI),rFOV DWI and 3D APT before surgery.Two neuroradiologists delineated the solid part of the tumor layer by layer,and extracted its apparent diffusion coefficient(ADC)and magnetization transfer ratio asymmetry(MTRasym)values.Combined-parameter model(MTRasym+rADC)was constructed by binary Logistic regression.The efficacy of the single-parameter and combined-parameter model was assessed using receiver operating characteristic curve.Results The mean value of MTRasym of the medium-low group[(2.93±0.61)%]was higher than that of high differentiation group[(1.74±0.63)%](t=-7.60,P＜0.001),and the mean value of rADC of the medium-low group[(0.98±0.17)×10-3 mm2/s]was lower than that of the high differentiation group[(1.19±0.18)×10-3 mm2/s](t=4.50,P＜0.001).In the identification of histopathological grades of rectal adenocarcinoma,receiver operating characteristic analysis showed that compared with MTRasym and rADC,the combined parameter model had the highest diagnostic performance,with an area under the curve of 0.94,sensitivity and specificity of 0.86 and 0.96.Conclusion 3D APT and rFOV DWI are helpful in identifying the histopathological grade of rectal adenocarcinoma.

Aim To investigate the effects of ber-bamine on behavioral changes in LPS-induced chronic neuroinflammation model mice and the related mecha-nisms.Methods By injecting lipopolysaccharide in-traperitoneally for seven days in a row,berbamine was given intraperitoneally as a treatment;the behavioral studies of mice in each group were identified;Nissen staining was used to observe the changes in the patho-logical morphology of the mouse hippocampus and the expression levels of inflammation-related proteins.These procedures established a mouse neuroinflamma-tion model.Results The number of neurons in the model group's hippocampal CA1 and CA3 regions was significantly smaller than that in the control group.In the water maze experiment,as the number of training days grew,the model group's escape latency increased and its retention time in the target quadrant dropped.The immobilization period of the model group mice in-creased during the forced swimming exercise.Serum levels of inflammatory factors such as IL-1β,IL-6,and TNF-α levels were also higher.The hippocampus tis-sue of the mice in the model group had higher levels of NLRP3,ASC,caspase-1,IL-18,ROCK1,ROCK2 ex-pression,and RHOA.When compared to the model group,the administration of berbamine was a therapy intervention.In the meantime,with the number of training days increased,the target quadrant lag time increased and the escape latency gradually decreased.Additionally,the model group's mice spent less time resting during forced swimming,and the serum inflam-matory factors TNF-α,IL-1β,and IL-6 decreased in mouse hippocampal tissues.Lastly,the expression lev-els of NLRP3,caspase-1,ASC,IL-1β,ROCK1,ROCK2,and RHOA all decreased in mouse hippocam-pal tissue.Conclusions The mechanism of action of berbamine,which improves lipopolysaccharide-induced depressive-like behaviors and modifies learning memory in mice,may include the NLRP3 and RHOA/ROCK signaling pathways.

Objective:To investigate the prognosis of childhood adrenoleukodystrophy (ALD) with cognitive disorder after haploidentical allogenic hematopoietic stem cell transplantation (haplo-HSCT), and to identify risk factors affecting the prognosis.Methods:It was a single-center retrospective study involving 31 ALD children receiving haplo-HSCT in Peking University People′s Hospital from January 2014 to October 2022.Survival analysis was performed by Kaplan-Meier method. Cox regression analysis was performed to identify risk factors for the prognosis of childhood ALD following haplo-HSCT. Results:Among the 31 children with ALD, 1 case died of cardiogenic shock during the transplantation, and the remaining had a successful haplo-HSCT.Ten children with ALD had cognitive disorder before haplo-HSCT, including 3 cases with the minimal LOES score ≥10 points and 8 cases with the Neurologic Function Score (NFS)>0 point before haplo-HSCT.Six children had major functional disability (MFD) and 2 cases died due to progression of ALD after haplo-HSCT.Twenty children did not have cognitive disorder before haplo-HSCT, of whom 3 cases had the LOES score≥10 points and 6 cases had NFS>0 before haplo-HSCT.Four children had MFD and 2 cases died due to progression of ALD after haplo-HSCT.For ALD patients without cognitive disorder after haplo-HSCT, the 3-year and 5-year survival rate were 100.0% and 72.9%, respectively, and the 5-year MFD-free survival was 61.6%.For ALD patients with cognitive disorder after haplo-HSCT, the 3-year survival rate was 83.3%.Compared with ALD patients with the LOES score<10 points before haplo-HSCT, those with the LOES score≥10 points had 9.243 times the risk of developing MFD after haplo-HSCT ( P=0.024, 95% CI: 1.332-64.127). Compared with ALD patients without cognitive disorder before haplo-HSCT, ALD patients with cognitive disorder had 9.749 times the risk of developing MFD after haplo-HSCT ( P=0.023, 95% CI: 1.358-66.148). Conclusions:Cognitive disorder and LOES score≥10 points before haplo-HSCT are risk factors for developing MFD in children with ALD following haplo-HSCT.

Langerhans cell histiocytosis(LCH)and Langerhans cell sarcoma(LCS)are characterized by clone proliferation of Langerhans-type cells, which may occur concurrently or sequentially with T-cell acute lymphoblastic leukemia (T-ALL) and other Lymphoid neoplasms. A 15-year old female patient diagnosed with T-ALL developed LCH involving multiple systems during maintenance chemotherapy of T-AL. After treated with chemotherapy with improved result, the patient showed progression of the illness and refractory to the second-line treatment. We found c.G35A (p.G12D)mutation in the KRAS gene and used the targeted drug Trametinib for treatment. The treatment proved effective, leading to partial remission within a week. Three months after Trametinib treatment, the patient developed new lymphadenopathy. Biopsy revealed the existence of LCS. The disease progressed quickly, and the patient died 7 days after diagnosis of LCS. The case of patients with T-ALL then developing LCH and LCS sequentially is extraordinarily rare. The causes of the case is unclear and may be related to cell transdifferentiation, clonal evolution, and chemotherapy. Targeted drugs can contain this disease for a short time.

Background::The dermoscopic features of rosacea have already been reported. However, the current findings are incomplete, and little is known about phymatous rosacea. Hence, this study aimed to summarize and compare the dermoscopic features and patterns of three rosacea subtypes (erythematotelangiectatic [ETR], papulopustular [PPR], and phymatous [PHR]) in the Chinese Han population and to evaluate whether these features differ with patients’ genders, ages, and durations.Methods::Dermoscopic images of 87 rosacea patients were collected in non-polarized and polarized dermoscopy contact modes at 20-fold magnification. Dermoscopic features, including vessels, scales, follicular findings, and other structures, were summarized and evaluated.Results::The reticular linear vessels and red diffuse structureless areas of ETR were distinctive. For PPR, red diffuse structureless areas, reticular linear vessels, yellow scales, follicular plugs, and follicular pustules were typical dermoscopic criteria. The common dermoscopic features of PHR were: orange diffuse structureless areas, linear vessels with branches, perifollicular white color, orange focal structureless areas, and white lines. The following features statistically differed among the three rosacea subtypes: reticular linear vessels ( P < 0.001), unspecific linear vessels ( P= 0.005), linear vessels with branches ( P < 0.001), yellow scales ( P = 0.001), follicular plugs ( P < 0.001), perifollicular white color ( P < 0.001), red diffuse structureless areas ( P = 0.022), orange diffuse structureless areas ( P < 0.001), red focal structureless areas ( P = 0.002), orange focal structureless areas ( P = 0.003), white lines ( P < 0.001), follicular pustules ( P < 0.001), and black vellus hairs ( P < 0.001). Conclusions::The dermoscopic patterns of ETR are red diffuse structureless areas and reticular linear vessels. For PPR, the pattern comprehends combinations of red diffuse structureless areas, reticular linear vessels, yellow scales, follicular plugs, and follicular pustules. Meanwhile, PHR is characterized by remarkable orange diffuse structureless areas, linear vessels with branches, perifollicular white color, orange focal structureless areas, and white lines.

[摘 要] 目的：探讨miR-1207-5p对乳腺癌T47D干细胞增殖、迁移和侵袭的影响及其可能的机制。方法: 以IGF-1、EGF、bFGF诱导、富集乳腺癌T47D干细胞并进行成球培养，流式细胞术分离干细胞，采用WB法检测干细胞分子标志物。采用qPCR检测干细胞中miR-1207-5p的表达水平，双荧光素酶报告基因实验分析miR-1207-5p和LIMD1的靶向关系。CCK-8、Transwell和划痕实验检测T47D干细胞的增殖、迁移和侵袭能力。WB法检测干细胞中LIMD1蛋白的表达水平。结果: 分离的T47D干细胞能够形成细胞球，细胞球体积随培养天数的增加而增加；干细胞分子标志物ALDH1、ESA和OCT4的表达水平较亲本T47D细胞显著升高（P<0.05或P<0.01），miR-1207-5p在干细胞中高表达（P<0.01）。过表达miR-1207-5p显著促进T47D干细胞的增殖、迁移和侵袭（均P<0.01），敲降miR-1207-5p显著抑制T47D干细胞的增殖、迁移和侵袭（均P<0.01）。miR-1207-5p靶向下调LIMD1的表达（P<0.01），miR-1207-5p通过靶向下调LIMD1促进乳腺癌T47D干细胞的增殖、迁移和侵袭能力（P<0.05或P<0.01）。结论： miR-1207-5p通过靶向下调LIMD1的表达来促进乳腺癌T47D干细胞的增殖、迁移和侵袭能力。

OBJECTIVE: To evaluate clinical efficacy of arthroscopic with platelet-rich plasma (PRP) in treating meniscus injury. METHODS: From January 2015 to December 2019, clinical control study on repair meniscus injury by arthroscopic with PRP between arthroscopic were searched by PubMed, Science Direct, Cochrane library, Chinese Journal Full-text Database, Wanfang and VIP database. Literature screening, data extraction and quality evaluation according to inclusion and exclusion criteria. Visual analogue scale(VAS) of knee joint and Lysholm score at 1, 6 and 12 months after opertaion between two groups were compared, and Western Ontario and McMaster University Osteoarthritis Index (WOMAC) at 3, 6 and 12 months after opertaion between twogroups were also compared. RESULTS: Totally 9 literatures and 329 patients with meniscal injuries were screened, include 146 patients treated by arthroscopic with PRP and 183 patients treated by arthroscopic. There were no statistical differences in VAS between two groups at 1, 6 and 12 months after opertaion. There were differences in Lysholm score at 1 and 6 months after operation between two groups [ CONCLUSION Arthroscopic with PRP for repair meniscus injury has short term efficacy of knee function and delay arthritis, while has similar effect in long term clinical efficacy and relieve pain.
Arthroscopy ; Humans ; Knee Joint ; Meniscus ; Osteoarthritis, Knee ; Platelet-Rich Plasma ; Tibial Meniscus Injuries/surgery* ; Treatment Outcome

Breast Neoplasms/surgery* ; Carcinoma in Situ ; Carcinoma, Ductal, Breast ; Carcinoma, Intraductal, Noninfiltrating/surgery* ; China ; Female ; Humans ; Mastectomy