ObjectiveTo determine the expression of matrix metalloproteinase-2 (MMP-2),cysteine rich protein 61 (Cyr61) and CD25 in esophageal carcinoma and investigate their clinical significance.MethodThe expression of MMP-2, Cyr61 and CD25 in 68 cases of esophageal tumor tissues (esophageal carcinoma group ) and part-cancer( para-cancer group ) and 68 cases of reflux esophagitis (control group ) was detected by immunohistochemical method and the results were statistically analysed. ResultsThe positive expression rates of MMP-2,Cyr61 and CD25 were 82.35％(56/68), 73.53％(50/68) and 89.71％(61/68)respectively in esophageal carcinoma group,there were significant differences compared with those in paracancer group and control group(P ＜ 0.05) ; while there was no significantdifference between para-cancer group and control group (P ＞ 0.05 ). The positive expression rates of MMP-2, Cyr61 and CD25 in esophageal carcinoma group in different T stage, N stage and M stage all had statisticall differences (P ＜ 0.05),while there was no significant difference in different degree of differentiation (P ＞ 0.05 ). ConclusionMMP-2,Cyr61 and CD25 is highly expressed in esophageal carcinoma,there is some significance for understanding the occurrence, development and prognosis of esophageal carcinoma.

Objective To evaluate the outcome of long-term cognitive function after liver transplan-tation in children and the role of age factor.Methods Ninety-five pediatric patients,aged 2 yr and 6 months to 6 yr and 11 months at test,at least 1 yr after liver transplantation,were selected.The children's cognitive function was assessed using Chinese Wechsler Intelligence Scale for Children.The patients were divided into 2 groups according to the age at transplantation: ≤1 yr group(L1 group,n＝65)and > 1 yr group(M1 group,n＝22).Results Compared with the normal value,the scores of verbal comprehension and total intelligence quotient(IQ)were significantly decreased,and the proportion of children who had a-bove-average IQ was decreased 1 yr after liver transplantation,the scores of verbal comprehension were de-creased,and the proportion of children who had above-average IQ was decreased in group L1,and the scores of verbal comprehension,visual space and total IQ were significantly decreased,the proportion of children who had above-average IQ was reduced,and the proportion of children who had below-average IQ was increased in group M1(P＜0.05).Compared with L1 group,the total IQ score was significantly de-creased,the proportion of children who had above-average IQ was reduced,and the proportion of children who had below-average IQ was increased in group M1(P＜0.05).Conclusion The long-term cognitive function of children after liver transplantation is lower than that of normal children,and the long-term cogni-tive function of children ≤1 yr is better than that of children >1 yr.

With the appearance of the disadvantages of traditional tumor treatment, immunotherapy has entered people′s horizons as modern emerging treatment strategies, among which plant polysaccharides have received much more attention due to their antitumor activity and significant immunomodulatory effects. Tumor-associated macrophages (TAMs), as a component of tumor microenvironment, are important factors affecting tumors, and the regulation of TAMs by plant polysaccharides is one of the effective immunotherapy to treat tumor. In this review, we mainly described the regulation of TAMs by plant polysaccharides and the underlying mechanisms, and then gave an outlook on the research interests and the development of plant polysaccharides as immune adjuvants, aiming to provide reference for the study of plant polysaccharides in the immunotherapy for tumors.

Acute osteofascial compartment syndrome is a series of symptoms and signs caused by acute ischemia of muscles and nerves in osteofascial compartment. If it is not treated in time, it can lead to tissue necrosis. It is rare that it is caused by rodenticide poisoning. Such patients are often difficult to diagnose and treat early and have poor prognosis. In May 2018, a patient with acute osteofascial compartment syndrome caused by anticoagulant rodenticide poisoning was admitted to the Twelfth Hospital of Guangzhou City. After systematic treatment, he finally recovered and discharged. The early manifestations of this patient were mainly coagulation dysfunction, and finally acute osteofascial compartment syndrome. 5 days later, the diagnosis was made, and the operation of incision decompression and vacuum sealing drainage (VSD) was performed.

Acute osteofascial compartment syndrome is a series of symptoms and signs caused by acute ischemia of muscles and nerves in osteofascial compartment. If it is not treated in time, it can lead to tissue necrosis. It is rare that it is caused by rodenticide poisoning. Such patients are often difficult to diagnose and treat early and have poor prognosis. In May 2018, a patient with acute osteofascial compartment syndrome caused by anticoagulant rodenticide poisoning was admitted to the Twelfth Hospital of Guangzhou City. After systematic treatment, he finally recovered and discharged. The early manifestations of this patient were mainly coagulation dysfunction, and finally acute osteofascial compartment syndrome. 5 days later, the diagnosis was made, and the operation of incision decompression and vacuum sealing drainage (VSD) was performed.

Objective:To investigate the effects of treadmill training with different intensities on tendon-bone healing in rats after anterior cruciate ligament (ACL) reconstruction.Methods:Of the 99 adult male Sprague-Dawley (SD) rats used for this study, 90 were randomly selected to undergo ACL reconstruction with autologous caudal tendon. Two weeks after the surgical reconstruction, the 90 SD rats were randomized into a low-intensity group (group L, n=30) subjected to treadmill training at a speed of 12 m/min, a moderate-intensity group (group M, n=30) subjected to treadmill training at a speed of 18 m/min, and a free group (group C, n=30) subjected to free activities in the cage as a model control. The other 9 rats were set as a blank control (group N, n=9) subjected to no treatment at all. The treadmill training started at the end of 2 weeks after surgical reconstruction. Hematoxylin-eosin (HE), micro-CT analysis, mechanical testing, real-time quantitative polymerase chain reaction (qPCR) and western blot analysis were used to evaluate the quality of tendon-bone healing. Results:There were no significant differences in the areas of femoral and tibial lateral bone tunnels or the total bone volume ratio (BV/TV) between the 3 groups 2 weeks after surgery ( P > 0.05). At 4 weeks and 8 weeks after surgery, the areas of lateral tibial bone tunnel and lateral femoral tunnel in groups C, M and L showed a decreasing trend ( P < 0.05) while the BV/TV of lateral femoral tunnel and the BV/TV of lateral tibial tunnel in groups C, M and L showed an increasing trend ( P < 0.05). At 8 weeks after surgery, HE staining showed that the tendon-bone healing was the most mature in group L, followed by group M, and the least mature in group C, showing statistically significant differences ( P < 0.05). The stiffness and maximum failure load showed an increasing trend from group C to group M to group L to group N. The stiffness in group M and the stiffness and maximum failure load in groups N and L were significantly higher than those in group C ( P < 0.05). The relative mRNA expression levels of osteopontin (OPN) and collagen type Ⅱ alpha 1 chain gene (COL2 α 1), as well as the protein expression levels of osteocalcin, OPN, and COL2 α 1, showed an increasing trend from group C to group M to group L, showing significant differences between pairwise comparisons ( P < 0.05). Conclusions:Treadmill training starting at the end of 2 weeks after surgery is beneficial to tendon-bone healing and improves the biomechanical strength of the tendon-bone complex. Low-intensity mechanical stimulation is more conducive to new bone formation and collagen fiber remodeling in the tendon-bone complex.

Objective: To evaluate the outcome of long-term cognitive function after liver transplantation in children and the role of age factor. Methods: Ninety-five pediatric patients, aged 2 yr and 6 months to 6 yr and 11 months at test, at least 1 yr after liver transplantation, were selected.The children′s cognitive function was assessed using Chinese Wechsler Intelligence Scale for Children.The patients were divided into 2 groups according to the age at transplantation: ≤1 yr group (L1 group, n=65) and > 1 yr group (M1 group, n=22). Results: Compared with the normal value, the scores of verbal comprehension and total intelligence quotient (IQ) were significantly decreased, and the proportion of children who had above-average IQ was decreased 1 yr after liver transplantation, the scores of verbal comprehension were decreased, and the proportion of children who had above-average IQ was decreased in group L1, and the scores of verbal comprehension, visual space and total IQ were significantly decreased, the proportion of children who had above-average IQ was reduced, and the proportion of children who had below-average IQ was increased in group M1(P<0.05). Compared with L1 group, the total IQ score was significantly decreased, the proportion of children who had above-average IQ was reduced, and the proportion of children who had below-average IQ was increased in group M1 (P<0.05). Conclusion The long-term cognitive function of children after liver transplantation is lower than that of normal children, and the long-term cognitive function of children ≤1 yr is better than that of children >1 yr.

In the field of dental aesthetics,digital aesthetic design plays a crucial role in helping dentists to predict treatment outcomes vis-ually,as well as in enhancing the consistency of knowledge and understanding of aesthetic goals between dentists and patients.It serves as the foundation for achieving ideal aesthetic effects.However,there is no clear standard for this digital process currently in China and abroad.Many dentists lack of systematic understanding of how to carry out digital aesthetic design for treatment.To establish standardized processes for dental aesthetic design and to improve the homogeneity of treatment outcomes,Chinese Society of Digital Dental Industry(CSD-DI)convened domestic experts in related field to compile this consensus.This article elaborates on the key aspects of digital aesthetic data collection,integration steps,and the digital aesthetic design process.It also formulates a decision tree for dental aesthetics at macro level and outlines corresponding workflows for various clinical scenarios,serving as a reference for clinicians.

Oral diseases concern almost every individual and are a serious health risk to the popula-tion.The restorative treatment of tooth and jaw defects is an important means to achieve oral function and support the appearance of the contour.Based on the principle of"learning from the nature",Deng Xu-liang's group of Peking University School and Hospital of Stomatology has proposed a new concept of"microstructural biomimetic design and tissue adaptation of tooth/jaw materials"to address the worldwide problems of difficulty in treating dentine hypersensitivity,poor prognosis of restoration of tooth defects,and vertical bone augmentation of alveolar bone after tooth loss.The group has broken through the bottle-neck of multi-stage biomimetic technology from the design of microscopic features to the enhancement of macroscopic effects,and invented key technologies such as crystalline/amorphous multi-level assembly,ion-transportation blocking,and multi-physical properties of the micro-environment reconstruction,etc.The group also pioneered the cationic-hydrogel desensitizer,digital stump and core integrated restora-tions,and developed new crown and bridge restorative materials,gradient functionalisation guided tissue regeneration membrane,and electrically responsive alveolar bone augmentation restorative membranes,etc.These products have established new clinical strategies for tooth/jaw defect repair and achieved inno-vative results.In conclusion,the research results of our group have strongly supported the theoretical im-provement of stomatology,developed the technical system of oral hard tissue restoration,innovated the clinical treatment strategy,and led the progress of the stomatology industry.