Surgical operation is the main treatment of oral and maxillofacial tumors.Dysphagia is a common postoperative complication.Swal-lowing disorder can not only lead to mis-aspiration,malnutrition,aspiration pneumonia and other serious consequences,but also may cause psychological problems and social communication barriers,affecting the quality of life of the patients.At present,there is no systematic evalua-tion and rehabilitation management plan for the problem of swallowing disorder after oral and maxillofacial tumor surgery in China.Combining the characteristics of postoperative swallowing disorder in patients with oral and maxillofacial tumors,summarizing the clinical experience of ex-perts in the field of tumor and rehabilitation,reviewing and summarizing relevant literature at home and abroad,and through joint discussion and modification,a group of national experts reached this consensus including the core contents of the screening of swallowing disorders,the phased assessment of prognosis and complications,and the implementation plan of comprehensive management such as nutrition management,respiratory management,swallowing function recovery,psychology and nursing during rehabilitation treatment,in order to improve the evalua-tion and rehabilitation of swallowing disorder after oral and maxillofacial tumor surgery in clinic.

Cryoablation therapy with explicit anti-tumor mechanisms and histopathological manifestations has a long history.A large number of clinical practice has shown that cryoablation therapy is safe and effective,making it an ideal tumor treatment method in theory.Previously,its efficacy and clinical application were constrained by the limitations of refrigerants and refrigeration equipment.With the development of the new generation of cryoablation equipment represented by argon helium knives,significant progress has been made in refrigeration efficien-cy,ablation range,and precise temperature measurement,greatly promoting the progression of tumor cryoablation technology.This consensus systematically summarizes the mechanism of cryoablation technology,indications for oral mucosal melanoma(OMM)cryotherapy,clinical treatment process,adverse reactions and management,cryotherapy combination therapy,etc.,aiming to provide reference for carrying out the standardized cryoablation therapy of OMM.

The biological clock(also known as the circadian rhythm)is the fundamental reliance for all organisms on Earth to adapt and survive in the Earth's rotation environment.Circadian rhythm is the most basic regulatory mechanism of life activities,and plays a key role in maintaining normal physiological and biochemical homeostasis,disease occurrence and treatment.Recent studies have shown that the biologi-cal clock plays an important role in the development of oral tissues and in the occurrence and treatment of oral diseases.Since there is cur-rently no guiding literature on the research methods of biological clock in stomatology,researchers mainly conduct research based on pub-lished references,which has led to controversy about the research methods of biological clock in stomatology,and there are many confusions about how to rationally apply the research methods of circadia rhythms.In view of this,this expert consensus summarizes the characteristics of the biological clock and analyzes the shortcomings of the current biological clock research in stomatology,and organizes relevant experts to summarize and recommend 10 principles as a reference for the rational implementation of the biological clock in stomatology research.

Neck dissection(ND)is one of the main treatment methods for oral and maxillofacial malignancies.Although ND type is in con-stant improvement,but intraoperative peal-pull-push injury of the accessory nerve,muscle,muscle membrane,fascia and ligament induced shoulder syndrome(SS)is still a common postoperative complication,combined with the influence of radiochemotherapy,not only can cause pain,stiffness,numbness,limited dysfunction of shoulder neck and arm,but also may have serious impact on patient's life quality and phys-ical and mental health.At present,there is still a lack of a systematic evaluation and rehabilitation management program for postoperative SS of oral and maxillofacial malignant tumors.Based on the previous clinical practice and the current available evidence,refer to the relevant lit-erature at home and abroad,the experts in the field of maxillofacial tumor surgery and rehabilitation were invited to discuss,modify and reach a consenusus on the etiology,assessment diagnosis,differential diagnosis,rehabilitation strategy and prevention of SS,in order to provide clinical reference.

Mycobacterium abscessesus (MAB) is the most common species of rapidly growing pathogenic nontuberculous mycobacteria (NTM). MAB is also an opportunistic pathogen with high drug resistance. The unique structure of cell wall enables it to exist in different forms and to undergo morphological transformation, making it the "shapeshifter of the mycobacterial world" , which facilitates its survival in natural environment in a saprophytic manner; and also facilitates its invasion into the host with long-term survival and being pathogenic. This article reviews research progress on the specific deformability of MAB and the mechanism associated with its phenotypic transformation; discusses the evolutionary characteristics of MAB to adapt environmental changes to provide reference for better understanding the biological characteristics and pathogenicity of MAB.

The limited treatment options for advanced prostate cancer (PCa) lead to the urgent need to discover new anticancer drugs. Mannose, an isomer of glucose, has been reported to have an anticancer effect on various tumors. However, the anticancer effect of mannose in PCa remains unclear. In this study, we demonstrated that mannose inhibits the proliferation and promotes the apoptosis of PCa cells in vitro, and mannose was observed to have an anticancer effect in mice without harming their health. Accumulation of intracellular mannose simultaneously decreased the mitochondrial membrane potential, increased mitochondrial and cellular reactive oxygen species (ROS) levels, and reduced adenosine triphosphate (ATP) production in PCa cells. Mannose treatment of PCa cells induced changes in mitochondrial morphology, caused dysregulated expression of the fission protein, such as fission, mitochondrial 1 (FIS1), and enhanced the expression of proapoptotic factors, such as BCL2-associated X (Bax) and BCL2-antagonist/killer 1 (Bak). Furthermore, lower expression of mannose phosphate isomerase (MPI), the key enzyme in mannose metabolism, indicated poorer prognosis in PCa patients, and downregulation of MPI expression in PCa cells enhanced the anticancer effect of mannose. This study reveals the anticancer effect of mannose in PCa and its clinical significance in PCa patients.
Animals ; Apoptosis ; Cell Line, Tumor ; Humans ; Male ; Mannose ; Membrane Potential, Mitochondrial ; Mice ; Mitochondria ; Prostatic Neoplasms ; Reactive Oxygen Species

Objective: To assess the feasibility and validity of the establishment of a modified channel for extraperitoneal robot-assisted laparoscopic radical prostatectomy (RARP) through single incision. METHODS: From November 2020 to January 2021, 35 cases of localized PCa were treated by extraperitoneal RARP through single incision in our center. All the operations were performed by the same surgeon, none via the multichannel port for the establishment of the channel. We recorded and analyzed the intra- and postoperative parameters, operation cost, complications, pathological findings and follow-up data. RESULTS: All the operations were successfully completed, without conversion to open surgery or additional channels, or serious postoperative complications, the time for establishing the extraperitoneal space averaging 25.4 (20.0－45.0) min, the operation time 67.3 (35.0－125.0) min, intraoperative blood loss 75.5 (60.0－150.0) ml, time to first postoperative anal exhaust 26 (8－48) h, and postoperative hospital stay 7.89 (7－10) d. Postoperative pathology showed adenocarcinoma in all the cases, with Gleason score (GS) 3+3 in 9 (25.7%), GS 3+4 in 9 (25.7%), GS 4+3 in 8 (22.9%), and GS ≥ 8 in 9 (25.7%) of the cases, 23 (65.7%) in the CONCLUSIONS The establishment of the modified channel for extraperitoneal RARP through single incision is a safe and feasible procedure, with the advantages of good cosmesis, fast recovery, effective tumor control and continence, no serious postoperative complications, and less cost.、.
Blood Loss, Surgical ; Humans ; Laparoscopy ; Male ; Prostatectomy ; Robotic Surgical Procedures ; Robotics

Objective::To investigate the role and mechanism of Testudinis Carapax et Plastrum aqueous extract in promoting osteogenic differentiation of mouse preosteoblast cell line(MC3T3-E1) by regulating nuclear transcription factor-κB(NF-κB) inflammation microenvironment. Method::MC3T3-E1 cells were cultured in vitro, and osteogenic induction (OI) was performed. Testudinis Carapax et Plastrum was prepared and treated the cells. Cells were devided into control group, osteogenic induction group and Testudinis Carapax et Plastrum (20 mg·L^-1)with osteogenic induction group. The proliferation of MC3T3-E1 was detected by cell counting kit-8 (CCK-8), and the optimum concentration of intervention was determined. MC3T3-E1 differentiation and osteogenic mineralization were assayed using alkaline phosphatase (ALP) and Alizarin red staining (ARS), respectively. The expressions of NF-κB p65, NF-κB p105, interleukin-6(IL-6), ALP and Collagen-Ⅰ(COL-Ⅰ) mRNA were detected by Real-time PCR. Result::The results of CCK-8 showed that the proliferation of MC3T3-E1 did not change statistically with time, but it showed an upward trend, while the proliferation at 20 mg·L^-1 was more obvious than other groups. The ALP and ARS showed that the positive staining rate of osteogenic induction group and Testudinis Carapax et Plastrum with osteogenic induction group were higher than control group.Real-time PCR results showed that on the 7^th day in culture, the expression of NF-κB p105 and IL-6 mRNA in Testudinis Carapax et Plastrum with osteogenic induction group was significantly lower than that in control group (P<0.01), and the expression of ALP and COL-Ⅰ mRNA was significantly upregulated(P<0.05), on the 14^th day, the expression of NF-κB p65, NF-κB p105 and IL-6 mRNA in Testudinis Carapax et Plastrum with osteogenic induction group was significantly lower than that in control group (P<0.01). The expression of ALP and COL-Ⅰ mRNA was significantly increased (P<0.05, P<0.01). Conclusion::Testudinis Carapax et Plastrum aqueous extract can promote osteogenic differentiation of MC3T3-E1 via a mechanism associated with the regulation of inhibition of NF-κB inflammatory microenvironment.