Intentional tooth replantation (ITR) is an advanced treatment modality and the procedure of last resort for preserving teeth with inaccessible endodontic or resorptive lesions. ITR is defined as the deliberate extraction of a tooth; evaluation of the root surface, endodontic manipulation, and repair; and placement of the tooth back into its original socket. Case reports, case series, cohort studies, and randomized controlled trials have demonstrated the efficacy of ITR in the retention of natural teeth that are untreatable or difficult to manage with root canal treatment or endodontic microsurgery. However, variations in clinical protocols for ITR exist due to the empirical nature of the original protocols and rapid advancements in the field of oral biology and dental materials. This heterogeneity in protocols may cause confusion among dental practitioners; therefore, guidelines and considerations for ITR should be explicated. This expert consensus discusses the biological foundation of ITR, the available clinical protocols and current status of ITR in treating teeth with refractory apical periodontitis or anatomical aberration, and the main complications of this treatment, aiming to refine the clinical management of ITR in accordance with the progress of basic research and clinical studies; the findings suggest that ITR may become a more consistent evidence-based option in dental treatment.
Humans ; Tooth Replantation/methods* ; Consensus ; Periapical Periodontitis/surgery*

Methods: A retrospective review of medical record data from patients undergoing spine irrigation and debridement (I&D) at the University of Missouri over a 10-year period was performed. Results: For patients undergoing spine I&D, there was a 4% incidence of fungal infection and 0.49% rate of AFB infection. Steroid use was associated with a higher likelihood (odds ratio, 5.62; 95% confidence interval, 1.33–23.75) of positive fungal or AFB cultures. Although not significant, patients undergoing multiple I&D procedures had higher rates of positive fungal cultures during each subsequent I&D. Over a 10-year period, if fungal cultures are obtained for each patient, it would cost our healthcare system $12,151.58. This is compared to an average cost of $177,297.64 per missed fungal infection requiring subsequent treatment. Conclusions Spine fungal infections occur infrequently at a rate of 4%. Physicians should strongly consider obtaining samples for fungal cultures in patients undergoing spine I&D, especially those using steroids and those undergoing multiple I&Ds. Our AFB culture rates mirror the false positive rates seen in previous orthopedic literature. It is unlikely to be cost effective to send for AFB cultures in areas with low endemic rates of AFB.

Objective: To investigate the application of single-molecule PCR (SM-PCR) in the detection of plasma ctDNA for the treat-ment of patients with advanced lung adenocarcinoma. Methods: In total, 30 patients diagnosed with advanced lung adenocarcinoma were enrolled between June 2017 and May 2018. ctDNA fragments of the target genes (EGFR, KRAS, BRAF, ALK, HER2, and TP53) from the blood samples were enriched by SM-PCR, and DNA libraries were prepared. Finally, a high-throughput sequencing was performed. The EGFR detection of tumor tissue samples was performed using real-time fluorescence PCR based on the amplification refractory mutation system (ARMS) and consistency in the results of EGFR mutation detection in the plasma and tissue was compared. Results:The results of both the methods were consistent (Kappa=0.867, P<0.001). The McNemar's test also indicated that the results are not statistically different (P=0.500). Conclusions: SM-PCR can be used for the detection of plasma EGFR mutations. The target detection sites are more comprehensive and multiple mutations can be detected at the same time. Results of the analysis are more precise and can be absolutely quantified.

Breast cancer is the most common cancer for Chinese women. Early screening is the best way to improve the rates of early diagnosis and early treatment of breast cancer. The peak ages of breast cancer in Chinese women are obviously different from those in the European and American countries. It is imperative to develop a guideline for breast cancer screening that is suitable for Chinese women. Based on the analysis and summary of breast cancer screening data in China, and the latest guidelines and consensus on breast cancer screening in Europe, the United States and East Asia, China Anti-Cancer Association and National Clinical Research Center for Cancer (Tianjin Medical University Cancer Institute and Hospital) has developed a population-based guideline for breast cancer screening in Chinese women. This guideline has provided detailed recommendations on the screening starting age, screening modalities, and screening interval in Chinese women with average risk and high risk of breast cancer, respectively. This article aims to interpret the above guideline, providing references for professionals in breast cancer screening.

Objective: To evaluate the application of self-made-dispensing-ampoule car in the medicine dispensing for venous transfusion. Methods: The self-made-dispensing-ampoule car made based on the ergonomics is a temporary carrier device for medical waste in the need of the whole process of dispensing process. The overall exterior is made of 304 stainless steel, separated into 2 layers. The Upper layer has a frame with integral medicine glass hole made of stainless steel, which can be dismantled from the upper layer. The medicine glasses are small empty medicine bottles used to hold the dispensed medicine; while the lower layer is a slide platform which can put on 3 medical waste classification boxes. The bottom has universal wheels with brakes to help the car move and stop. To focus on 42 emergency department nurses using the device, to analyze their error rate of medicine dispensing, the dispensing time for the same batch of patients with same dosages and shuttle time from dispensing car to buffer room to pour medical waste and compare the data the year before and the year using the device. Results: After using it, the dispensing error occurrence rate and nurses dispensing time and shuttle times of pouring waste were 0.31 ‱ (3/97 785), (70.08±3.28) min/time, two times, which were all obviously lower than 1.95‱ (18/92 095), (110.04±6.91) min/time, 30 times without using it (χ²=11.64, 204.16, t=71.70, all P<0.01). Conclusion Using the dispensing ampoule car can optimize the dispensing process in dispensing of venous transfusion, ensure patients with safe venous transfusion, raise the efficiency of nurses saving time and efforts.

Objective: To detect eight highly related driver genes in non-small cell lung cancer (NSCLC), and to analyze the relationship between gene variations and clinical-pathological features. Methods: We collected 212 NSCLC samples from Tianjin Medical University Cancer Institute and Hospital, and sequenced eight genes which are EGFR, KRAS, BRAF, ALK, MET, ERBB2, ROS1 and RET. Results: EGFR gene variation rate was as high as 52.8%, followed by KRAS (8.5%), ALK (8.0%), ERBB2 (6.1%), MET (3.8%), BRAF (1.4%), RET (0.9%) and ROS1 (0.9%) in eight detecting genes, at least one driver gene variant was detected in 75% samples, and driver gene variant showed strong mutual exclusion. The most common EGFR mutations were 19 exon deletion and L858R mutation, and the mutation of EGFR T790M was accompanied by the above two mutations. The proportion of non-EGFR T790M mutations in patients with exon 19 dele-tion was lower than that of L858R mutations (P=0.04). There were 15.2% patients with EGFR mutation accompanied by EGFR amplifica-tion, and the proportion of patients with EGFR mutation frequency greater than 40% with EGFR amplification was higher than that without EGFR amplification (P<0.01). Women, non-smoking, patients with adenocarcinoma were prone to carry EGFR especially EGFR sensitive mutations (P<0.01). Patients with lung adenocarcinoma (P=0.013), late clinical stage (P=0.048), and lymph node metastasis (P=0.027) had a higher proportion of EGFR amplification. The incidence of KRAS mutation was higher in men, left lung cancer and smoking patients (P=0.009, P=0.048, P=0.037). Patients with non-KRAS mutations, ALK fusions were younger (P=0.005, P=0.031), and with KRAS mutations were older (P=0.055). Conclusions: Next-generation sequencing (NGS) can simultaneously detect eight highly re-lated driver genes in NSCLC patients to provide evidence for clinicians. NGS based on detection of multiple genes provides more possi- bilities for individualized diagnosis and treatment of NSCLC.

Objective: To screen genes related to familial non-medullary thyroid carcinoma (FNMTC) using next-generation sequencing (NGS). Methods: A panel of NGS was designed and sequencing was performed for DNA samples extracted from peripheral blood leukocytes of FNMTC patients and sporadic non-medullary thyroid carcinoma (SNMTC) cases, respectively, and gene mutations were screened. In addition, the clinicopathological characteristics, including tumor size, extension of surgery, lymph node metastasis and extra-thyroidal extension, were compared between patients with or without mutations. Results: In 63 NMTC samples, 45 mutations were detected on 13 genes. 37 germline mutations were detected in 47 FNMTC patients, while 8 germline mutations were detected in 16 SNMTC patients. In 8 FNMTC family lineages, the same mutations were carried by FNMTC patients from the same pedigree. The number of carriers of mutations was 29 in the 47 FNMTC patients and 6 in the 16 SNMTC patients, with a non-significant difference (P= 0.092). Among the FNMTC patients, there were 22 patients with central lymph node metastasis in the 29 mutation-positive patients, significantly more than 7 in the 16 mutation-negative cases (P= 0.031). As for the parentage, there were 3 patients with central lymph node involvement among the 7 patients of parent generation, while all the 9 patients of offspring generation had central lymph node metastasis (P=0.019). Conclusions This panel of NGS can be used to screen mutant susceptibility gene of FNMTC patients, and the findings may be helpful for early detection of FNMTC patients and predicting the disease risk to familial members of FNMTC patients.

OBJECTIVETo introduce the recent developments in cancer immunoinformatics with an emphasis on the latest trends and future direction.

DATA SOURCESAll related articles in this review were searched from PubMed published in English from 1992 to 2013. The search terms were cancer, immunoinformatics, immunological databases, and computational vaccinology.

STUDY SELECTIONOriginal articles and reviews those were related to application of cancer immunoinformatics about tumor basic and clinical research were selected.

RESULTSCancer immunoinformatics has been widely researched and applied in a series of fields of cancer research, including computational tools for cancer, cancer immunological databases, computational vaccinology, and cancer diagnostic workflows. Furthermore, the improvement of its theory and technology brings an enlightening insight into understanding and researching cancer and helps expound more deep and complete mechanisms of tumorigenesis and progression.

CONCLUSIONCancer immunoinformatics provides promising methods and novel strategies for the discovery and development of tumor basic and clinical research.

OBJECTIVEThis study aimed to investigate the effect of a lactoperoxidase-peroxidase-thiocyanate (LPO-H2O-SCN-) system with different concentrations of iodine (I-) on Streptococcus mutans (S. mutans), particularly on various parameters, including growth, adhesion, glucosyltransferase (GTF) enzyme activity, and insoluble exopolysaccharide synthesis.

METHODSS. mutans ATCC 25175 was used as experimental species. Clonal formation unit (CFU) were counted to investigate the inhibitory effect on bacterial growth. The inhibition rate of bacterial adherence was calculated to analyze the effect on adhesion. Anthrone method was used to determine the content of insoluble exopolysaccharides and the amount of reducing saccharides. GTF activity and enzyme activity were then determined.

RESULTSThe inhibitory ability of the LPO-H2O2-SCN- system with I- on the cariogenicinity of S. mutans was strengthened as I- concentration was increased. At I- concentration > or = 100 micromol x L(-1) the antibacterial effects were significantly increased compared with those of the control group (P < 0.05). At I- concentration > or = 1,000 micromol x L(-1), the antibacterial effects were significantly improved compared with those of the group with SCN-only (P < 0.05). At I- concentration > or = 100 micromol x L(-1), the inhibition rate of bacterial adherence was > 50%; insoluble exopolysaccharide synthesis and GTF enzyme activity were reduced (P < 0.05).

CONCLUSIONThe antibacterial effects of the LPO-H2O2-I- system were enhanced by adding I- to overcome the antagonistic effect of physiological SCN- concentration. LPO-H2O2-SCN- system with different concentrations of I- showed statistically significant inhibitory effects on growth, adhesion, insoluble exopolysaccharide synthesis, and GTF enzyme activity.

Objective:To highlight the developmental process of 3D cell culture technology system, which is more suitable for isolating and identifying lung cancer stem-like cells than 2D cell culture technology system, and to explore the application of 3D cell cultures in the evaluation of proliferation, apoptosis, invasion, and drug resistance of lung cancer. Methods:Cells (104/well) from the human lung adenocarcinoma cell lines A549 and RPMI 1640 were cultured in complete medium containing 10%fetal bovine serum. Cell suspension was cultured in a BME basal medium. A growth curve was drawn after 7 d of culture. The stem-like cell was identified through a mammosphere culture, drug resistance and invasion assay, and flow cytometry. Data of A549 cells cultured in 3D and 2D tra-ditional cell culture technologies were compared. Results: Cells from the 3D cell culture had higher tumor formation rates [(20.75 ± 0.85) d vs. (60.25 ± 1.49) d, P<0.01)] and tumor sphere formation (28.50%± 1.17%vs. 8.67%± 0.80%, P<0.01) than those from the 2D cell culture. Moreover, cells from 3D cell culture were more invasive and resistant to therapy (58.17%± 2.19%vs. 41.70%±5.81%in 48 h, P<0.01;33.27%±5.76%vs. 27.30%±4.25%in 72 h, P<0.01). Phenotype experimental results demonstrated that the CD44 and CD326 cells were double-positive, whereas the CD24 cell was negative. Conclusion:The proportion of stem-like cells in A549 cell line after 3D cell culture significantly increased compared with 2D cell culture. The 3D cell culture can promote the proliferation of lung cancer stem cells.