To establish a method for determining 26 inorganic elements in earthworm polypeptide and determine the elemental content in different batches of earthworm polypeptide, microwave digestion method was used to pre-treat the samples, and ICP-MS method was used to determine the content of 26 elements in different batches of earthworm polypeptide. The linear relationships of 26 elements were good in the range of 0-1 000 μg·L^-1, with R² greater than 0.999, precision RSD 0.21%-2.71%, repeatability RSD 0.19%-4.69%, stability RSD 0.11%-4.24%, and recovery rates of 82.41%-116.16%. The data was plotted using Origin 2022 software to characterize the distribution of elements content. SPSS 27.0 was used for principal component analysis, and SIMCA 14.1 software was used for OPLS-DA analysis. The results showed that among the 26 elements, the higher content of earthworm polypeptide was K, Na, and Ca, followed by Zn, Fe, Al, B and other trace elements, In, Sc, Co, Pb, Bi and other elements had little or no detectable content, and there were differences in the content of polypeptide in different batches. This study provides a theoretical basis for the production quality control, quality evaluation and drug efficacy application of earthworm polypeptide through the determination and analysis of the elements and content of earthworm polypeptide.

Objective:To assess the effectiveness of robot-assisted mandibular angle osteotomy using the FACE-Q questionnaire.Methods:A randomized controlled clinical study was conducted in the Second Affiliated Hospital of Zhengzhou University from January 2022 to June 2023. Patients with mandibular angle hypertrophy aged 18 to 40 years old were recruited as research objects, and a randomization and supply management system (Clinflash IRT 2.0) was used to randomly assign the experimental group and control groups in a 1∶1 ratio. Before surgery, Mimics 21.0 software was used to plan the surgical approach and determine the osteotomy plane based on the head CT data of the two groups. The experimental group underwent robot-assisted mandibular angle osteotomy according to the preoperative osteotomy plan, while the control group underwent traditional manual mandibular angle osteotomy according to the preoperative design. Six months after surgery, patients filled in the FACE-Q craniofacial module scale to evaluate the surgical effect, covering 12 indicators in four aspects: appearance satisfaction (including face, jaw and smile), health-related quality of life (including appearance anxiety, psychology, social interaction and speech), postoperative function (including breathing, diet, face and pronunciation), and adverse reactions. Each indicator was scored from 0 to 100 points, with higher scores indicating better evaluation. SPSS 27.0 software was used to process the data, and the measurement data of normal distribution were expressed by Mean±SD, and t-test was used for comparison between groups. The measurement data of non-normal distribution were expressed by M ( Q1, Q3), and Mann-Whitney U test was used for the comparison between groups. P<0.05 was considered statistically significant. Results:The experimental group included 20 patients, 3 males and 17 females, with an age of (27.6±4.4) years (19 to 38 years); the control group included 20 patients, 4 males and 16 females, with an age of (27.4±3.9) years (19 to 35 years). Six months postoperatively, all patients in both groups had good wound healing, and the mandibular hypertrophy was improved to varying degrees. There were no complications such as facial paralysis, facial deviation, or pain. The FACE-Q questionnaire results showed that in terms of appearance satisfaction, the scores for the three indicators of face, mandible, and smile in the experimental group were (72.2±11.7), 86(77, 92), and (63.2±9.5) points, respectively, all higher than those in the control group, which were (49.2±9.9), 43(35.5, 50), and (48.0±7.7) points, respectively, with statistically significant differences ( P<0.01 for all); in terms of health-related quality of life, except for speech, the scores for the three indicators of appearance anxiety, psychology, and social interaction in the experimental group were higher than those in the control group [(71.0±11.5) points vs.(49.1±10.3) points, (66.7±11.7) points vs.(45.4±10.5) points, (75.0±9.7)points vs.(56.4±8.5) points], with statistically significant differences ( P<0.01 for all); in terms of postoperative function, the score for eating in the experimental group was higher than that in the control group [(83.4±10.7) points vs.(71.0±14.9) points] ( P<0.01), but there were no statistically significant differences in the other three indicators ( P>0.05 for all); in terms of adverse reaction, there was no statistically significant difference between the two groups ( P>0.05). Conclusion:The result of the FACE-Q questionnaire assessment confirmed that robot-assisted mandibular angle osteotomy can significantly improve patients’ postoperative appearance satisfaction, psychological state, social adaptability, and eating function without increasing the incidence of complications.

Microglia are resident immune cells in the central nervous system(CNS),it play an important role in both physio-logical and pathological conditions of the CNS,and can be activated by a variety of physicochemical factors to produce pro-inflammato-ry phenotype(M1 type)and anti-inflammatory phenotype(M2 type).Milk fat globule epidermal growth factor 8(MFG-E8)is closely related to the biological function of microglia,which can regulate microglia neuroprotective effects such as promoting phagocytosis,anti-inflammatory,and inhibiting oxidative stress in CNS related diseases.It also regulates microglia pro-tumor effect,which in turn affects the outcome of the disease.This article reviews the role of targeting MFG-E8 in regulating the function of microglia,and provides a basis for finding therapeutic targets for CNS related diseases in the future.

Objective:To assess the effectiveness of robot-assisted mandibular angle osteotomy using the FACE-Q questionnaire.Methods:A randomized controlled clinical study was conducted in the Second Affiliated Hospital of Zhengzhou University from January 2022 to June 2023. Patients with mandibular angle hypertrophy aged 18 to 40 years old were recruited as research objects, and a randomization and supply management system (Clinflash IRT 2.0) was used to randomly assign the experimental group and control groups in a 1∶1 ratio. Before surgery, Mimics 21.0 software was used to plan the surgical approach and determine the osteotomy plane based on the head CT data of the two groups. The experimental group underwent robot-assisted mandibular angle osteotomy according to the preoperative osteotomy plan, while the control group underwent traditional manual mandibular angle osteotomy according to the preoperative design. Six months after surgery, patients filled in the FACE-Q craniofacial module scale to evaluate the surgical effect, covering 12 indicators in four aspects: appearance satisfaction (including face, jaw and smile), health-related quality of life (including appearance anxiety, psychology, social interaction and speech), postoperative function (including breathing, diet, face and pronunciation), and adverse reactions. Each indicator was scored from 0 to 100 points, with higher scores indicating better evaluation. SPSS 27.0 software was used to process the data, and the measurement data of normal distribution were expressed by Mean±SD, and t-test was used for comparison between groups. The measurement data of non-normal distribution were expressed by M ( Q1, Q3), and Mann-Whitney U test was used for the comparison between groups. P<0.05 was considered statistically significant. Results:The experimental group included 20 patients, 3 males and 17 females, with an age of (27.6±4.4) years (19 to 38 years); the control group included 20 patients, 4 males and 16 females, with an age of (27.4±3.9) years (19 to 35 years). Six months postoperatively, all patients in both groups had good wound healing, and the mandibular hypertrophy was improved to varying degrees. There were no complications such as facial paralysis, facial deviation, or pain. The FACE-Q questionnaire results showed that in terms of appearance satisfaction, the scores for the three indicators of face, mandible, and smile in the experimental group were (72.2±11.7), 86(77, 92), and (63.2±9.5) points, respectively, all higher than those in the control group, which were (49.2±9.9), 43(35.5, 50), and (48.0±7.7) points, respectively, with statistically significant differences ( P<0.01 for all); in terms of health-related quality of life, except for speech, the scores for the three indicators of appearance anxiety, psychology, and social interaction in the experimental group were higher than those in the control group [(71.0±11.5) points vs.(49.1±10.3) points, (66.7±11.7) points vs.(45.4±10.5) points, (75.0±9.7)points vs.(56.4±8.5) points], with statistically significant differences ( P<0.01 for all); in terms of postoperative function, the score for eating in the experimental group was higher than that in the control group [(83.4±10.7) points vs.(71.0±14.9) points] ( P<0.01), but there were no statistically significant differences in the other three indicators ( P>0.05 for all); in terms of adverse reaction, there was no statistically significant difference between the two groups ( P>0.05). Conclusion:The result of the FACE-Q questionnaire assessment confirmed that robot-assisted mandibular angle osteotomy can significantly improve patients’ postoperative appearance satisfaction, psychological state, social adaptability, and eating function without increasing the incidence of complications.

Objective To explore the clinical efficacy of single unicompartmental knee arthroplasty(UKA)and total knee arthroplasty(TKA)for the treatment of knee osteoarthritis.Methods A total of 21 patients who underwent TKA and 15 who underwent UKA were randomly recruited.Biomechanical tests were performed before surgery and at 6th and 12th month after surgery.A Vicon infrared motion capture system and Kistler three-dimensional force plate were used to simultaneously acquire the kinematic and kinetic data of the patients during stair walking.Results During stair ascent,the peak knee flexion moment in the TKA group was significantly lower than that in the UKA group;the time to peak knee flexion/adduction moment,knee flexion moment impulse,and load rate of the peak knee adduction moment in the UKA group were significantly lower than those in the UKA group.During stair descent,the peak knee extension power in the UKA group was significantly lower before surgery and at 6th month after surgery;the load rate of the peak vertical ground reaction force was significantly higher before surgery and the peak knee extension moment was significantly greater at 6th month after surgery;at 12th month after surgery,there was no significant difference in the biomechanical characteristics during stair ascent and descent.Conclusions The TKA and UKA groups showed similar knee joint function after surgery;however,compared with the UKA group,the TKA group may adopt a different lower extremity biomechanical pattern.The UKA group showed better quadriceps control after surgery and improved postural control during stair descent,whereas the TKA group adopted a conservative stair gait strategy to reduce the knee load.Compared with the peak moment,the time to peak moment and load rate of the peak moment were more sensitive indicators for determining the difference in the knee load.

Malignant tumors in children are one of the most important diseases that threaten the health and quality of life of children and are the second most common cause of death in children.With the continuous improvement and progress of treatment technology, the long-term survival rate of children with tumor has been significantly improved, but both the disease itself and the treatment can impair the immune function of children, which makes them vulnerable to various infectious diseases and secondary serious complications, and even become a source of infection, endangering the health of others. Vaccination is the most cost-effective measure to prevent infectious diseases. For children with normal immune functions, the benefits of vaccination usually outweigh the disadvantages. However, there is a lack of detailed data on the vaccination situation, efficacy and safety of vaccine use for such immunocompromised tumor survivors, and there are no authoritative and uniform vaccination recommendations. This article reviewed and summarized the literature and consensus of some domestic and foreign scholars on current status of post-treatment vaccination status, efficacy and safety of vaccination for children with tumors after treatment, with the aim of providing a reference for the practice in this field in China.

OBJECTIVE: In order to solve the technical problems, clinical researchers face the process of medical imaging analysis such as data labeling, feature extraction and algorithm selection, a medical imaging oriented multi-disease research platform based on radiomics and machine learning technology was designed and constructed. METHODS: Five aspects including data acquisition, data management, data analysis, modeling and data management were considered. This platform provides comprehensive functions such as data retrieve and data annotation, image feature extraction and dimension reduction, machine learning model running, results validation, visual analysis and automatic generation of analysis reports, thus an integrated solution for the whole process of radiomics analysis has been generated. RESULTS: Clinical researchers can use this platform for the whole process of radiomics and machine learning analysis for medical images, and quickly produce research results. CONCLUSIONS This platform greatly shortens the time for medical image analysis research, decreasing the work difficulty of clinical researchers, as well as significantly promoting their working efficiency.
Machine Learning ; Diagnostic Imaging ; Algorithms ; Radiography

Proto-Oncogene Proteins c-akt ; TOR Serine-Threonine Kinases ; GTP-Binding Protein alpha Subunits, Gi-Go/metabolism*

The peeled stems of Syringa pinnatifolia(SP) is a representative Mongolian folk medicine with the effects of anti-depression, heat clearance, pain relief, and respiration improvement. It has been clinically used for the treatment of coronary heart disease, insomnia, asthma, and other cardiopulmonary diseases. As part of the systematic study on pharmacological substances of SP, 11 new sesquiterpenoids were isolated from the terpene-containing fractions of the ethanol extract of SP by liquid chromatography-mass spectrometry(LC-MS) and proton nuclear magnetic resonance(~1H-NMR) guided isolation methods. The planar structures of the sesquiterpenoids were identified by MS, 1D NMR, and 2D NMR data analysis, and were named pinnatanoids C and D(1 and 2), and alashanoids T-ZI(3-11), respectively. The structure types of the sesquiterpenoids included pinnatane, humulane, seco-humulane, guaiane, carryophyllane, seco-erimolphane, isodaucane, and other types. However, limited to the low content of compounds, the existence of multiple chiral centers, the flexibility of the structure, or lack of ultraviolet absorption, the stereoscopic configuration remained unresolved. The discovery of various sesquiterpenoids enriches the understanding of the chemical composition of the genus and species and provides references for further analysis of pharmacological substances of SP.
Syringa ; Sesquiterpenes ; Terpenes ; Asthma ; Chromatography, Liquid

OBJECTIVE To establish a method for simultaneously determining the contents of camphor ，menthol，borneol and methyl salicylate in Compound shexiang xuelian liuzhi plaster . METHODS The test solution was prepared by reflux extraction with ethyl acetate ，and was determined by gas chromatography （GC）. A Shimadzu SH -Rtx-Wax capillary column was used as the chromatographic column ，and a flame ionization detector was used as the detector . The detector temperature and the injector temperature were both set at 200 ℃. The flow rate of carrier gas （nitrogen）was 2.0 mL/min，the separation ratio was 20∶1，and the sample size was 1.0 μL. RESULTS The linear ranges of camphor ，menthol，borneol（calculated by the sum of isoborneol and borneol）and methyl salicylate were 11.5-230.4，10.6-211.6，11.3-225.5，11.0-219.1 μg/mL（r＞0.999）. RSDs of the precision ， repeatability and stability （48 h）tests were all less than 4%. The average recoveries of the four components were 100.7%，99.7%， 98.9% and 100.7%（RSDs were 4.3%，2.9%，2.2%，3.7%，n＝9）. The contents of camphor ，menthol，borneol and methyl salicylate in two specifications of Compound shexiang xuelian liuzhi plaster were 16.8-19.5，4.6-6.0，9.8-11.9，6.9-8.2 mg/piece（7 cm×10 cm/piece），and 8.3-8.6，2.2-2.4，4.7-4.8，3.2-3.6 mg/piece （5 cm×7 cm/piece）. CONCLUSIONS The method is successfully established for simultaneous determination of four volatile components in Compound shexiang xuelian liuzhi plaster .