Analysis of the mechanism of phellodendron amurense polysaccharide in the treatment of liver injury based on network pharmacology and in vivo experiments / 安徽医科大学学报

Objective To analyze the effect and molecular mechanism of phellodendron amurense in the treatment of liver injury based on network pharmacology,and to verify the relevant prediction targets and the protective effect of phellodendron amurense extract-Phellodendron amurense polysaccharide on immune liver injury through mice.Methods TCMSP and Swiss target prediction databases were used to retrieve and screen phellodendron amurenses active components and action targets,and then obtain disease-related targets on GeneCards and OMIM websites,and take compounds and disease intersection targets for protein interaction.Analysis,GO biological function and KEGG signaling pathway enrichment analysis,followed by molecular docking of compounds and key target proteins,and finally established a mouse liver injury model induced by Daodou protein A(Con A)to explore the mechanism of phellodendron amurense extract in the treatment of liver injury.Results 37 active ingredients were screened.The key targets for their treatment were tumor necrosis factor α(TNF-α),serine/threonine protein kinase 1(AKT1),signal transduction and transcription activation factor 3(STAT3),epidermal growth factor receptor(EGFR)anditin.Enzyme 3(CASP3)and other enrichment analysis showed that phellodendron amurense might play a protective role in protecting the liver through molecular mechanisms such as positive regulation of MAPK cas-cade reaction,oxidative stress response and regulatory PI3K-Akt signaling pathway,lipid and atherosclerosis.Ani-mal experiments had found that the gastric treatment of phellodendron amurense polysaccharide could improve the activity of superoxide dismutase(SOD)and catalase(CAT)in liver tissue,reduce the levels of serum alkaline phosphatase(ALP),aspartate aminotransferase(AST)and malonaldehyde(MDA)in liver tissue,and regulate serum inflammatory factor while the expression of intercitin(IL)-6,IL-1 β,tumor necrosis factor α(TNF-α),ac-tivated the expression of transforming growth factor β1(TGF-β1),and reduced TNF-α mRNA expression in liver tissue.Conclusion Phellodendron amurense can intervene in lipid and atherosclerosis pathways by acting on tar-gets such as TNF-α,AKT1,STAT3,EGFR and CASP3 to reduce oxidative stress and inflammatory reactions and achieve liver protection.

Comparative study between Tada formula method and three-dimensional reconstruction method for evaluating meningioma volume / 重庆医学

Objective To investigate the accuracy and application value of the Tada formula in evalua-ting the meningioma volume based on 3D reconstruction technology.Methods The thin-slice magnetic reso-nance images of 297 patients with meningioma treated in the neurosurgery department of 940 Hospital of PLA Joint logistics Support Force from January 2014 to May 2022 were retrospectively analyzed.The meningioma volume was evaluated by the Tada formula method and three-dimensional reconstruction method respectively.The accuracy of the evaluation of meningeal tumor volume by the Tada formula was analyzed by grouping sta-tistics.Results In the whole sample and the concentrated sample,the obtained meningioma total volumes had no statistical difference between the two methods(P＞0.05),the Spearman correlation coefficients were 0.995 and 0.993 respectively,and the intragroup correlation coefficients(ICC)were 0.992 and 0.989,respec-tively.In the Bland-Altman plot,most of the data points were within the limit of uniformity.Compared with different groups,the Tada formula had a slightly lower accuracy in the volume assessment of meningiomas with higher degree of irregularity,and a better accuracy in the volume assessment of supratentorial meningio-mas than subtentorial meningiomas.Conclusion The Tada formula could accurately evaluate the volume of meningioma,and it could be used as a preliminary method to evaluate meningioma volume in clinic

Analysis of Blood Type Unexpected Antibody Screening Results and Disease Types of Clinical Patients from A Hospital in Chengdu,Sichuan Province from 2012 to 2021 / 现代检验医学杂志

Objective To analyze blood type unexpected antibody and disease characteristics of inpatients in a hospital,and provide a reference for optimizing precise transfusion schemes and improving clinical transfusion safety.Methods The data of unexpected antibody screening and identification in the General Hospital of Western Theater Command from January 2012 to December 2021 were collected,while information on these patient age,gender,blood transfusion history,pregnancy history and disease diagnosis were also collected.The positive rate,composition ratio and disease characteristics of unexpected antibodies were analyzed.Results The positive rate of unexpected antibody screening was 0.55%(1 736/315 456),in which females were higher than males(0.69%vs 0.44%,χ2=90.107,P＜0.05),patients with a history of blood transfusion or(and)pregnancy were higher than those without a history of blood transfusion or(and)pregnancy(75.69%vs 22.81%,χ2=971.098,P＜0.05),and patients aged 40～80 accounted for 72.93%(1 266/1 736).Patients diseases with unexpected antibody positive accounted for 80.41%(1 396/1 736),mainly including digestive system diseases,immune diseases of blood and hematopoietic organs,tumors,urogenital system diseases,circulatory system diseases,musculoskeletal system and connective tissue diseases.Moreover,91.88%(1 595/1 736)of the patients with anti-screening positive underwent antibody identification,in which the majority of unexpected antibodies were Rh blood group system[41.57%(663/1 595)],Lewis blood group system[11.22%(179/1 595)],and MNS blood group system[6.90%(110/1 595)].Antibody specificity was mainly characterized by anti-E[32.41%(517/1 595)],anti-Lea[10.47%(167/1 595)],and anti-M 6.08%(97/1 595).Other antibodies[35.8%(571/1 595)]were mainly no-detected specific antibodies.Conclusion The screening results of blood type unexpected antibodies and disease type analysis are of great significance for transfusion safety.Blood transfusion department should carry out precise blood transfusion matching with multiple antigens(RhCcDEe,Lea,M)for long-term transfusion patients,women,and patients with pregnancy or blood transfusion history,so as to reduce the incidence of unexpected antibodies and improve transfusion safety.

Effects of multi-disciplinary nutrition support team on nutritional status and quality of life in lung cancer patients undergoing chemotherapy / 中国实用护理杂志

Objective:To explore the effects of multi-disciplinary nutrition support team on nutritional status and quality of life in lung cancer patients undergoing chemotherapy, so as to provide reference for the formulation of nutritional intervention plans for lung cancer patients undergoing chemotherapy.Methods:This was a quasi experimental study. A total of 74 patients with lung cancer undergoing chemotherapy in Jinshan Hospital of Fudan University from February 2021 to July 2022 were selected as the research object by convenient sampling method. They were divided into two groups according to their admission time, 37 cases of patients from February to August 2021 for the control group, using conventional nursing interventions, 37 cases of patients from September 2021 to July 2022 for the observation group, with multi-disciplinary nutrition support team. A follow-up was conducted for three chemotherapy cycles, serum nutrition indicators and quality of life were compared between the two groups.Results:There were 27 males and 10 females in the control group, aged (68.14 ± 6.82) years old. There were 30 males and 7 females in the observation group, aged (65.92 ± 9.17) years old. There was no significant difference in the serum nutrition indicators and quality of life before intervention between the two groups (all P>0.05). The serum total protein, albumin and prealbumin levels in the observation group were (69.41 ± 5.87), (38.11 ± 4.04) g/L, and (243.57 ± 67.58) mg/L, which were higher than those in the control group (65.54 ± 8.33), (35.78 ± 5.39) g/L, and (200.84 ± 60.84) mg/L, the differences were statistically significant ( t=-2.31, -2.10, -2.86, all P<0.05). After intervention, the observation group showed higher scores for emotional function and overall health/life quality, with (88.29 ± 16.72), (60.36 ± 13.24) points, compared to the control group with (76.80 ± 17.58), (46.40 ± 16.38) points. The scores for fatigue, nausea/vomiting, insomnia, and loss of appetite were (34.53 ± 22.19), (11.26 ± 8.83), (20.72 ± 16.39), (24.32 ± 18.67) points in the observation group, which were lower than the scores in the control group (45.65 ± 22.95), (25.68 ± 18.67), (36.94 ± 23.29), (40.54 ± 22.41) points, all the differences were statistically significant ( t values were -4.03-4.24, all P<0.05). Conclusions:During chemotherapy in lung cancer patients, the multidisciplinary nutrition support team has been shown to significantly improve the patients′ nutritional status and enhance their quality of life.

Research progress on social alienation of patients with gynecological malignant tumors / 中国实用护理杂志

To review the research status, assessment tools, influencing factors and intervention measures of social grooming in patients with gynecological malignant tumors, so as to provide a theoretical basis for improving the social alienation of patients with gynecological malignant tumors and better integrating into society.

Application of synthetic and biological materials in articular cartilage repair / 中国组织工程研究

BACKGROUND:The repair of articular cartilage injury remains a difficult problem to be solved urgently in clinical practice.Utilizing synthetic or biological materials to promote cartilage regeneration has been a research hotspot. OBJECTIVE:To review the research progress of synthetic and biological materials in articular cartilage repair. METHODS:PubMed and CNKI databases were searched for articles about the progress of synthetic and biological materials utilized in articular cartilage repair."Collagen,gelatin,silk,chitosan,alginate,PEG,PCL,PLA,cartilage tissue engineering,cartilage tissue engineering materials"were used as English and Chinese search terms,respectively.After preliminary screening based on the inclusion and exclusion criteria,98 articles with high quality and relevance were retained for review. RESULTS AND CONCLUSION:Natural materials,including collagen,gelatin,silk,chitosan,and alginate,have good biocompatibility and degradability.Synthetic materials,containing polyethylene glycol,polycaprolactone,and polylactic acid,have good mechanical properties.Modification and composition of materials can overcome the inherent defects in materials and show better cartilage repair ability.Studies about multi-layer scaffolds based on hierarchical structure are rare,and it is more targeted at osteochondral injury repair rather than simple cartilage injury repair.At present,scaffold research is focused on the synthetic research and development stage,and the corresponding clinical trials are few,so it is necessary to pay attention to clinical transformation in the future.

Advantages and disadvantages of trauma effects during robot-assisted total knee arthroplasty / 中国组织工程研究

BACKGROUND:The application of robot-assisted technology for total knee arthroplasty is one of the current research hotspots.Since the 1980s,robot-assisted technology has been introduced into total knee arthroplasty outside China to achieve accurate osteotomy and good recovery of lower limb alignment.After decades of use,the robot has continuously improved its performance with new iterations,but has been criticized for increasing perioperative time and surgical trauma. OBJECTIVE:To summarize the advantages and disadvantages of current orthopedic surgical robots in total knee arthroplasty. METHODS:PubMed database and CNKI were searched to analyze the advantages and disadvantages of robot-assisted total knee arthroplasty in surgical trauma.English search terms were"arthroplasty,replacement,knee,knee replacement arthroplasty,procedure,robotic surgical,total knee arthroplasty,arthroplasty,replacement,knee,robotic-assisted".The Chinese search terms were"robot-assisted,robotic arm,knee osteoarthritis,arthritis".After the initial screening of all articles according to the inclusion and exclusion criteria,62 articles with high quality and relevance were reviewed. RESULTS AND CONCLUSION:(1)Robot-assisted total knee arthroplasty did not increase the degree of surgical trauma in patients,and showed a lower trauma effect than conventional manual total knee arthroplasty.(2)Robot-assisted total knee arthroplasty has the advantages of accurate auxiliary osteotomy,individualized prosthesis implantation,better protection of soft tissue around the knee joint,reduction of analgesic drug use,reduction of postoperative inflammatory index changes,and shortening of hospital stay.However,there are also shortcomings such as prolonged operation time,increased complications,and increased medical costs.(3)It is concluded that preliminary clinical application studies have shown that robot-assisted total knee arthroplasty can reduce surgical trauma,but it is necessary to be alert to potential risks.Simultaneously,its exact advantages compared with conventional manual total knee arthroplasty need to be verified by large-sample randomized controlled studies and long-term follow-up.

Quality Analysis of Schefflera kwangsiensis Merr.Based on HPLC Fingerprinting Combined with Chemometrics / 医药导报

Objective Based on HPLC fingerprinting and chemometrics,to evaluate the quality of Schefflera kwangsiensis Merr.from Guangxi.Methods HPLC was used to establish fingerprints of Schefflera kwangsiensis Merr.from ten different origins,and gradient elution was carried out with methanol-0.1％phosphoric acid aqueous solution as mobile phase.Cluster analysis(CA),principal component analysis(PCA)and orthogonal partial least squares-discriminant analysis(OPLS-DA)were applied to evaluate quality.Results The fingerprints of Schefflera kwangsiensis Merr.from ten different origins were established by HPLC,a total of 22 common peaks were calibrated,with a similarity range of 0.922-0.999.Four chromatographic peaks were identified as rhodopsin,4,5-bis-O-caffeoylquinic acid,caffeic acid,and naringin.The samples were classified into four types according to the CA and OPLS-DA.PCA identified four principal components with a cumulative contribution rare of 95.39％.Conclusion The quality of Schefflera kwangsiensis Merr.can be comprehensively evaluated by fingerprinting combined with CA,PCA and OPLS-DA analysis.The Study can provide a reference for improving the quality control and assessment of Schefflera kwangsiensis Merr.

Application of miniprobe endoscopic ultrasound in endoscopic surgery of small-diameter and low-grade rectum neuroendocrine neoplasm / 局解手术学杂志

Objective To evaluate the value of miniprobe endoscopic ultrasound(EUS)in guiding endoscopic treatment of small-diameter(maximum diameter less than 1 cm)and low-grade(G1 grade)rectum neuroendocrine neoplasm(R-NEN),and to provide evidence and clues for its clinical application and further research.Methods The clinical data of 85 cases of low-grade(G1 grade)R-NEN with a maximum diameter of less than 1 cm who underwent endoscopic treatment in our center from January 2014 to December 2020 were retrospectively analyzed.The patients were divided into the EUS group(37 cases)and control group(48 cases)according to whether EUS was performed before endoscopic treatment.The positive rate of incision margin,the incidence of complications,the recurrence rate,the hospital stay,the cost of hospitalization and endoscopic therapy were compared between the two groups.Results The positive rate of incision margin in the EUS group was significantly lower than that in control group(P<0.05).There was no significant difference in the incidence of complications,tumor recurrence rate,hospital stay or hospital costs between the two groups(P>0.05).There was statistically significant difference in the endoscopic therapy between the two groups(P<0.05).Conclusion Evaluating the lesion depth of small-diameter and low-grade(G1 grade)R-NEN before surgery by miniprobe EUS and selecting endoscopic surgery according to its results of can significantly reduce the residual risk of resection margin tumors.

Mechanism of icariin regulating the NLRP3 inflammasome against cerebral ischemia reperfusion / 中国实验动物学报

Objective To investigate the mechanism of icariin regulating the NLRP3 inflammasome in the treatment of cerebral ischemia-reperfusion injury in rats.Methods A rat model of focal cerebral ischemia-reperfusion was induced using the thread embolism method.At 24 hours post-operation,the rats were randomly allocated into a sham operation group,model group,butylphthalide group(70 mg/kg),ICA-low dose(20 mg/kg),ICA-middle dose(40 mg/kg),and ICA-high dose(80 mg/kg)groups.The corresponding drugs were administered by gavage at 10 mL/kg once a day for 13 consecutive days.One hour after the last administration,neurological function was scored.The cerebral cortex was observed by hematoxylin-eosin(HE)staining.Expression of interleukin(IL)-1β and IL-18 in the cerebral cortex was determined by immunohistochemistry.Expression of NLRP3,ASC,and Caspase-1 in the cerebral cortex was determined by Western Blot.Results In contrast to the sham operation group,there was a notable increase in neural function scores within the model group.The ischemic area around the visible cerebral cortex showed neuron necrosis at various level or glial cell proliferation,and the number of intact neurons was significantly reduced.IL-1β and IL-18 positive cells were significantly increased.Expression of NLRP3,ASC,and Caspase-1 was significantly increased(P＜0.01,P＜0.05).After treatment with icariin,the neural function score was decreased significantly.The degree of neuronal necrosis in the peri-ischemic area was significantly reduced,and the number of intact neurons was significantly increased.IL-1 β and IL-18-positive cells were decreased significantly.Expressions of NLRP3,ASC,and Caspase-1 were significantly decreased(P＜0.01,P＜0.05).Conclusions Treatment of cerebral ischemia-reperfusion injury by icariin may be related to regulation of the NLRP3 inflammasome.

Study on immune characteristic genes of rheumatoid arthritis and the relationship with flavonoids of Smilax glabra Roxb / 安徽医科大学学报

Objective @#To use the GEO dataset and bioinformatics techniques , such as LASSO logistic regression , ssGSEA , and WGCNA , to screen for RA diagnostic markers and investigate the impact of earthly flavonoids in Smi lax glabra Roxb . on specific immune cell infiltration , to screen for rheumatoid arthritis (RA) diagnostic markers on specific immune cell infiltration and to analyze the combination of flavonoids in Smilax glabra Roxb . and diagnostic markers . @*Methods @#The normal control group and RA gene chip were obtained from the Gene Expression Omnibus database . The R 4.3.0 WGCNA software package was used to integrate and analyze the dataset , identify co-expression modules and associated trait information , and screen key modules closely related to RA . LASSO regression a nalysis was performed using the glmnet package in R to identify characteristic genes for RA . The area under the receiver operating characteristic (ROC) curve was used to evaluate the diagnostic value of the characteristic genes in RA . The gene expression data of the normal control group and RA group were subjected to quantitative immune cell infiltration analysis using the GSVA , limma , and GSEABase packages in R. The chemical components of earth worm flavonoids in Smilax glabra Roxb . were analyzed based on UHPLC-Q-Exactive Orbitrap MS . The correlation between flavonoids and characteristic genes was assessed through molecular docking. @*Results @#The LASSO regres sion algorithm selected 5 characteristic genes ( apolipoprotein D , zinc finger and BTB domain containing 16 , C-C chemokine receptor type 5 , matrix metalloproteinase 1 , coronin-1A) . The area under ROC curve of all 5 character istic genes was greater than 0. 85 , which exhibited positive correlations with various immune cells . Twenty earth worm flavonoids of Smilax glabra Roxb . were identified using UHPLC-Q-Exactive/MS , and Mulberrin and Neobavaisoflavone were well combined with 5 immune characteristic genes . @*Conclusion @# Flavonoids compounds of Smilax glabra Roxb . have good combination with RA immune characteristic genes , providing a scientific basis for RA immunomodulation therapy and early diagnosis .

Knowledge and practice levels of infectious disease among primary and middle school students in Beijing / 中国学校卫生

Objective@#To investigate the knowledge and practice levels on infectious disease among primary and middle school students, so as to provide a basis for targeted infectious disease in health education and infectious disease prevention and control in schools.@*Methods@#The stratified cluster random sampling was used to select 25 670 primary and middle school students from 6 urban area and 10 suburban area in Beijing from October to November in 2020. A questionnaire survey on knowledge and practice of students related to infectious disease prevention and control was conducted using the questionnaire compiled by the Chinese Center for Disease Control and Prevention. Chisquare test was used for group comparison.@*Results@#During the past two weeks, 8.64% students reported sickness absence. The awareness rates of knowledge on infectious disease were 37.64%-93.56%, and the formation rates of practice on infectious disease were between 62.22%-98.74%. The overall awareness rate of knowledge on infectious diseases was 58.58%, and the overall formation tate of practice on infectious disease prevention was 78.19%, with boys (54.14%,73.67%) lower than girls (63.25%,82.94%),urban areas (62.88%,79.12%) higher than suburbans areas (55.30%,77.48%), vocational high school studengs (43.51%,68.13%) lower than nonvocational high school students (elementary school: 56.05%, 85.19%; middle school: 61.66%, 78.63%; high school: 66.72%, 72.77% ), residential students (55.21%,71.59%) lower than nonresidential students (59.32%,79.64%), students living with parents (59.22%,79.30%) higher than those not with parents (54.60%,71.34%), and the differences were statistically significant (χ2=219.08, 148.95, 514.34, 26.44, 27.12; 323.26, 9.91, 536.11, 144.32, 114.11, P<0.05).@*Conclusions@#The levels of knowledge and practice regarding relative infectious disease among primary and middle school needs to be improved. Health education on the weak links in knowlege and practice of infectious disease prevention and control should be strengthened to reduce the incidence and transmission of infectious diseases.

Changes of macular retinal structure and microcirculation in patients with pituitary adenoma observed by optical coherence tomography and optical coherence tomography angiography / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To observe the changes of macular retinal structure and microcirculation in patients with pituitary adenoma(PA)by optical coherence tomography(OCT)and optical coherence tomography angiography(OCTA).METHODS: Cross-sectional study. A total of 40 PA patients treated at the department of neurosurgery, Affiliated Hospital of Guangdong Medical University from September 2021 to March 2023 were included as PA group, and 42 age- and gender-matched healthy volunteers were selected as normal control group. All patients underwent visual field, OCT and OCTA examinations, and the correlation of ocular parameters in PA patients was analyzed.RESULTS:The vessel density(VD)of each retinal layer in the macular area of the PA group was lower than that of the normal control group, and the superficial vascular complex(SVC)-VD in the macular area was positively correlated with the thickness of the macular ganglion cell complex(mGCC)(except the nasal side of the inner ring and the lower part of the outer ring; P&#x0026;#x003C;0.05). The thickness of mGCC in each quadrant of the macular area and the thickness of the circumpapillary retinal nerve fiber layer(CP-RNFL)in each quadrant were negatively correlated with the mean defect(MD)value of the visual field(P&#x0026;#x003C;0.05), and the area of the foveal avascular zone(FAZ)was positively correlated with the MD value(P&#x0026;#x003C;0.05).CONCLUSION:The combination of OCT and OCTA can fully understand the microscopic changes of retinal structure and microcirculation function in PA patients, which is of great value in evaluating the preoperative visual function of PA patients.

Swyer syndrome with gonadal non-dysgerminoma malignant germ cell tumors: a report of 15 cases in a national medical center / 中华妇产科杂志

Objective: To evaluate the incidence, treatment, and survival outcomes of Swyer syndrome with gonadal non-dysgerminoma malignant germ cell tumor (MGCT-NDG). Methods: A retrospective study was performed on Swyer syndrome patients with MGCT-NDG between January 2011 and December 2022 in Peking Union Medical College Hospital to investigate their characteristics and outcomes. Results: A total of 15 patients (4.9%, 15/307) with Swyer syndrome were identified in 307 MGCT-NDG patients. The average age at diagnosis of MGCT-NDG and Swyer syndrome were (16.8±6.7) and (16.7±6.6) years, respectively. Six cases were preoperatively diagnosed as Swyer syndrome, of which 4 cases received bilateral gonadectomy with or without hysterectomy, while the other 2 cases underwent removal of gonadal tumor and unilateral gonadectomy with hysterectomy, respectively. Of the 9 patients postoperatively diagnosed as Swyer syndrome, unilateral gonadectomy, removal of gonadal tumor, and unilateral gonadectomy with hysterectomy were performed in 6 patients, 2 patients, and 1 patient, respectively. Mixed malignant germ cell tumor (MGCT;10 cases), yolk sac tumor (4 cases), and immature teratoma (1 case) were the pathological subtypes, in the descending order. There were International Federation of Gynecology and Obstetrics (FIGO) stage Ⅰ in 6 cases, stage Ⅱ in 3 cases, stage Ⅲ in 5 cases, and stage Ⅳ in 1 case, respectively. Eleven patients received reoperation for residual gonadectomy after a average delay of (7.9±6.2) months, including 8 MGCT-NDG patients and 1 gonadoblastoma patient, no tumor involved was seen in the remaining gonads in the other 2 cases. Ten patients experienced at least one recurrence, with a median event free survival of 9 months (5, 30 months), of which 2 patients received surgery only at the time of initial treatment. All patients with recurrence received surgery and combined with postoperative chemotherapy. After a median follow-up of 25 months (15, 42 months), 10 patients were disease-free, 3 patients died of the tumor, 1 died of side effects of leukemia chemotherapy, and 1 survived with disease. Conclusion: The incidence rate of Swyer syndrome in patients with MGCT-NDG is about 4.9%; timely diagnosis and bilateral gonadectomy should be emphasized to reduce the risk of reoperation and second carcinogenesis in this population.

Application of Jacobian determinant of reverse deformation field to evaluation of deformation registration algorithm / 中华放射医学与防护杂志

Objective:To effectively quantify and evaluate the quality of different deformation registration algorithms, in order to enhance the possibility of implementing deformation registration in clinical practice.Methods:The Jacobian determinant mean (JDM) is proposed based on the Jacobian determinant (JD) of displacement vector field (DVF), and the Jacobian determinant error (DJDE) is introduced by incorporating the JD of the inverse DVF. The optical flow method (OF-DIR) and fast demons method with elastic regularization (FD-DIR) were tested on nasopharyngeal and lung cancer datasets. Finally, JDM and DJDE with the Jacobian determinant negative percentage (JDNP), inverse consistency error (ICE) and normalized mean square error (NMSE) were used to evaluate the registration algorithms and compare the differences evaluation indicators in different tumor images and different algorithms, and the receiver operating curve (ROC) was analyzed in evaluation.Results:In lung cancer, OF-DIR outperformed FD-DIR in terms of JDM, NMSE, DJDE and ICE, and the difference was statistically significant( z = -2.24, -4.84, t = 4.01, 6.54, P<0.05). In nasopharyngeal carcinoma, DJDE, ICE and NMSE of OF-DIR were superior to FD-DIR, and the difference was statistically significant ( t = 4.46, -7.49, z = -2.22, P<0.05), but there was no significant difference in JDM ( P>0.05). In lung cancer and nasopharyngeal carcinoma, JDNP of OF-DIR was worse than that of FD-DIR, and the difference was statistically significant ( z = -4.29, -4.02, P<0.01). In addition, DJDE is more specific and sensitive on ROC curve (AUC=0.77), and has different performance result for tumor images at different sites. Conclusions:The JDM and DJDE evaluation metrics proposed are effective for deformation registration algorithms. OF-DIR is suitable for both lung cancer and nasopharyngeal carcinoma, while the influence of organ motion on the registration effect should be considered when using FD-DIR.

The changes of volume and dose in adaptive re-planning during radiotherapy for nasopharyngeal carcinoma / 中华放射肿瘤学杂志

Objective:To investigate the necessity of adaptive re-planning during radiotherapy for nasopharyngeal carcinoma (NPC) and its impact on dose improvement.Methods:Clinical data of 89 NPC patients admitted to Sun Yat-sen University Cancer Center from July 2014 to December 2017 were retrospectively analyzed. All patients received 25+7 rounds of adaptive re-planning during radiotherapy. Plan-A was defined as the initial CT scan-based 25-fraction radiotherapy plan, while plan-B was defined as the re-planned 7-fraction radiotherapy plan based on a subsequent CT scan. The changes in the target and parotid gland volumes were compared between plan-A and plan-B. Plan-I was a one-time simulation of plan-A extended to 32 fraction radiotherapy plan, and plan-II was generated through registration and fusion of the plan-A and plan-B for adaptive re-planning. The differences in dose metrics, homogeneity index (HI), conformity index (CI), and dose to organs at risk (OAR) were compared between plan-I and plan-II. Statistical analysis was performed by using paired t-test. Results:Compared with plan-A, the gross tumor volume of massive bleeding lesions (GTV nx) and parotid gland volume of plan-B were decreased by 13.14% and 11.12%, respectively (both P<0.001). While planning clinical target volume of metastatic lymph nodes (PCTV nd) of plan-B was increased by 7.75%( P<0.001). There were significant changes in the lymph nodes of plan-A and plan-B. The D mean, D 5%, D 95% of massive bleeding lesions planning target volume (PTV nx) and D 5% of high risk planning target volume (PTV1) in plan-II were all significantly higher than those in plan-I (all P<0.05). The CI of PTV nx and PTV1 in plan-II was closer to 1 than that in plan-I. In all assessed OAR, the D mean, D 50%, and D max of plan-II were significantly lower than those of plan-I (all P<0.05). Conclusions:During radiotherapy, NPC patients may experience varying degrees of primary tumor shrinkage, parotid gland atrophy, and lymph node changes. It is necessary to deliver re-planning and significantly improve the dose of target areas and OAR.

Effects of Jianpi Mixture on Colonic miRNA Expression Profile in Diarrheal Irritable Bowel Syndrome Rats / 世界科学技术-中医药现代化

Objective To observe the difference in the expression of micro-ribonucleic acid(miRNA)in the colon tissue of irritable bowel syndrome-diarrhea(IBS-D)rats and rats treated with Jianpi Mixture,and predict The miRNA and corresponding genes involved in the treatment of IBS-D with Jianpi Mixture,providing a basis for finding potential therapeutic targets for IBS-D.Methods The rats were randomly divided into a blank group,a model group and a traditional Chinese medicine group,with 8 rats in each group.Both the model group and the Chinese medicine group used acute and chronic stimulation + senna leaf gavage to make the IBS-D model.The Chinese medicine group was gavaged with Jianpi Mixture after model building for 14 days.General condition,body weight and Bristol score were observed and recorded.Hematoxylin-eosin(HE)staining was used to observe the histopathological changes of colon in each group of rats.Transcriptome sequencing of rat colon tissue in each group to screen and map differentially expressed miRNAs.Perform GO(Gene oncology)functional enrichment analysis and KEGG(Kyoto Encyclopedia of Genes and Genomes)pathway enrichment analysis on the target genes corresponding to the screened common miRNAs.Results Compared with the model group,the weight of the rats in the Chinese medicine group increased significantly(P<0.01),and the Bristol score of the feces decreased significantly(P<0.01).The pathological damage of the colon tissue of rats in the Chinese medicine group was significantly reduced.Compared with the blank group,there were 109 differentially expressed genes in the model group,of which 80 were up-regulated and 29 were down-regulated.Compared with the model group,there were 109 differentially expressed genes in the traditional Chinese medicine group,of which 19 were up-regulated and 90 were down-regulated.Mapping the genes of the two comparisons found that 74 miRNAs in the model group were increased and 7 were decreased.The changes of these miRNAs were all reversed after the intervention of traditional Chinese medicine.The GO function enrichment analysis of target genes showed that Jianpi Mixture was mainly involved in synaptic vesicle positioning and transport,cytoplasmic transport,negative regulation of growth and development,and sugar transport after acting on rats.KEGG pathway enrichment analysis showed that MAPK,Wnt,Hippo,TNF,oxygen toxin,cAMP and other pathways were enriched.Conclusion After the intervention of Jianpi Mixture,IBS-D-related miRNA expression profiles have changed significantly;Jianpi Mixture may play a protective role in the treatment of IBS-D by regulating the MAPK signaling pathway and Wnt signaling pathway.Screening the core genes and predicting the miRNAs interacting with them provide a theoretical basis for the study of the pathogenesis of IBS-D and the therapeutic targets of Jianpi Mixture.

Study on the Effect of Lentivirus-Mediated NLRP3 Overexpression on Levels of Anti-CCP and RF in Synovial Fluid of Experimental RA Rabbits Regulated by Moxibustion / 世界科学技术-中医药现代化

Objective Observation of the anti-inflammatory and detumescence effects on experimental rheumatoid arthritis(RA)rabbits by moxibustion,With lentiviral vector mediated NLRP3 overexpression in RA animal models,to investigate the effect of moxibustion on anti-CCP/RF levels in synovial fluid of RA rabbit joints and its regulation mechanism of NLRP3.Methods Randomly divided thirty Japanese big-ear white rabbits into 5 groups:group of blank,group of model,group of moxibustion,NLRP3 overexpression group and NLRP3 overexpression negative group,with 6 rabbits in each group.Both joint of the model group,and the groups with moxibustion was injected into FCA(0.5 mL·kg-1),the blank group used the same method to inject sterile saline.On the 3rd day and the 10th day after treatment,10 μL of NLRP3 overexpression lentiviral vector was injected into the joint cavity of the NLRP3 overexpression group of rabbits.The rabbits in the NLRP3 overexpression negative group were injected with the same amount of LvGFP as Contrast.moxibustion bilateral"BL23","ST 36"of the groups with moxibustion(5 cones with one point in a day.6 days for 1 course,1 day for rest,3 courses of treatment in total.)After treatment,observe the circumference of each rabbit's left and right knee joints,the content of RF,anti-CCP,IL-18 in synovial fluid was detected by ELISA.Results Compared with the blank group,the left and right knee joint circumferences in the model group increased,and the anti-CCP,RF,and IL-18 contents in the synovial fluid of the knee joint increased significantly(P<0.01);compared with the modle group,The circumference of the knee joint decreased,and the content of anti-CCP,RF and IL-18 decreased significantly(P<0.01);compared with the moxibustion group,the circumference of the left and right knee joints in the NLRP3 overexpression group increased(P<0.05),the content of anti-CCP,RF and IL-18 increased(P<0.05).Conclusions Moxibustion has anti-inflammatory effects on experimental RA rabbits.Moxibustion at Shenshu(BL23)and Zusanli(ST36)can significantly reduce the level of anti-CCP,RF the immune effector,also IL-18,the in synovial fluid of RA rabbits knee joint,yet this effect can be declined significantly under NLRP3 overexpression,suggesting that moxibustion performed its anti-inflammatory regulation by suppressing abnormal immune function in experimental RA rabbits,which may be closely related to the NLRP3 expression.

Effects of Moxibustion on NLRP3 Inflammasome and Caspase-12 in Synovium of Experimental RA Rabbits / 世界科学技术-中医药现代化

Objective To observe the effects of moxibustion on the expression of Nucleotide binding oligomeric domain like receptor thermoprotein domain associated protein 3(Nod-like receptor protein 3,NLRP3)inflammasome and Cysteine aspartate protease 12(Caspase-12)in synovial tissue of experimental Rheumatoid Arthritis(RA)rabbits,and explore the anti-inflammatory mechanism of moxibustion on RA rabbits.Methods Twenty-four Japanese big-eared white rabbits were randomly divided into 3 groups according to body weight and sex:the control group,the model group and the moxibustion group.The Freund's Complete Adjuvant(FCA)was injected into the joint cavities of two knee joints of rabbits at the dose of 0.5 mL·kg-1 in the model group and the moxibustion group,and the control group was injected with the same amount of normal saline as control.For the moxibustion group,scar free moxibustion was operated at bilateral"BL 23"and"ST 36"acupoints,moxibustion for 3 times per acupoint per day,continuous treatment for 6 days,rest for 1 day,as a course of treatment,a total of 3 courses of treatment.The histological changes of synovium samples of rabbit knee joints were observed under light microscope,real-time quantitative polymerase chain reaction(RT-qPCR)was used to detect the expression of NLRP3,Cysteine aspartate protease 1(Caspase-1),Caspase-12 in synovial tissues and Enzyme-linked immuno sorbent assay(ELISA)was used to measure the change of Interleukin-1β(IL-1β)content in the synovial fluid of experimental animals.Results Compared with the control group,the degree of synovial lesions(inflammatory cell infiltration,synovial tissue hyperplasia,fibrous tissue hyperplasia,macrophage hyperplasia,etc.)and pathological score were increased(P<0.05),the expression of NLRP3,Caspase-1 mRNA were increased(P<0.05),the expression of Caspase-12 mRNA was significantly downregulated(P<0.01)and the expression content of IL-1β was significantly up-regulated(P<0.01)in the model group;Compared with the model group,the synovial lesion degree and pathological score were decreased(P<0.05),the expression of NLRP3,Caspase-1 mRNA were decreased(P<0.05),the expression of Caspase-12 mRNA was significantly increased(P<0.01)and the expression of IL-1β was decreased(P<0.05)in the moxibustion group.Conclusion Moxibustion can significantly inhibit the pathological process of knee synovitis in RA rabbits;Moxibustion at"Shenshu(BL 23)"and"Zusanli(ST 36)"acupoints can significantly up-regulate the expression of Caspase-12 and then inhibit the NLRP3 inflammasome,which may be one of mechanisms of moxibustion to reduce RA inflammatory response.

Analysis of medicinal value of gold based on ancient and modern comparison / 中国药师

Gold is one of the mineral medicine and has a long history."Calm the spirit,strengthen the bone marrow,clear five viscera,remove evil gas,and be like the immortal"was written on the"Annotation of Materia Medica",which was the first time to make clear its medicinal value.With the passage of time and the increase of related literature,people have a deeper understanding of the toxicity of gold.In order to avoid the harm caused by toxicity,the use frequency of gold is greatly reduced.There is still a lack of systematic research and sorting in modern researches,and the question of whether gold has medicinal value in Chinese patent medicine has not been deeply explored.Based on the description of ancient materia medica medical books,referring to the modern research results on"gold",this paper focused on the progress of medicinal properties of gold,ancient and modern applications and toxicity understanding,and on this basis,the medicinal value was analyzed,concluded and summarized,and the ancients'correct views on the use of gold was textually researched to provide the basis for further rational drug use in clinical and further development of its medicinal value.