Mechanism of blue light-induced ferroptosis in retinal pigment epithelium cells / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To investigate the occurrence and possible mechanism of blue light-induced ferroptosis in retinal pigment epithelial cells.METHODS: ARPE-19 cells cultured in vitro were irradiated by 405 nm blue light at 50 mW/cm2 irradiance with different duration and were divided into control, 16.3J/cm2, 32.6J/cm2, and 65.2J/cm2 groups; the 65.2J/cm2 group was defined as the high-level blue light irradiation group and cells were further divided into control, high-level blue light irradiation group and high-level blue light irradiation + ferroptosis inhibitor group. CCK-8 assay was used to detect cell viability, commercial kits were used to detect intracellular glutathione(GSH), ferrous iron and malondialdehyde(MDA)concentration, and Western blot was used to detect the relative expression of glutathione peroxidase 4(GPX4)and xCT proteins in cells.RESULTS: The decrease of ARPE-19 cell viability caused by blue light irradiation was dose-dependent, and the reduction of intracellular GSH concentration, the increase of ferrous iron concentration and MDA concentration were all caused by high-level blue light irradiation(all P<0.05); the ferroptosis inhibitor partially restored cell viability and recovered intracellular GSH, reduced concentrations of MDA and ferrous iron in the blue light irradiation group(all P<0.05). The relative expressions of GPX4 and xCT proteins were significantly decreased in the blue light irradiation group, and such change was alleviated by the ferroptosis inhibitor(P<0.05).CONCLUSION: Blue light irradiation may induce ferroptosis in RPE cells by targeting the xCT and GPX4-associated antioxidant pathways.

Combination pattern of internal fixation for periprosthesis fractures of the proximal femur after hip replacement / 中华骨科杂志

Objective:To investigate the combination of internal fixation for periprosthetic fractures of the proximal femur (PFFF) after hip arthroplasty.Methods:The data of 58 patients with periprosthetic fractures after hip arthroplasty from May 2008 to March 2022 were retrospectively analyzed, including 31 males and 27 females. The average age was 75.5±18.2 years (range, 35-95 years). There were 39 total hip arthroplasty and 19 hemiarthroplasty; 37 biological prosthesis and 21 cemented prosthesis. Intraoperative periprosthetic fractures occurred in 6 cases and 52 cases postoperatively. Unified classification system (UCS): UCS IV.3A1 type 2 cases, 3A2 type 1 case, 3B1.1 type 19 cases, 3B2.1 type 25 cases, 3B3 type 2 cases, 3C type 9 cases. Fracture site: 3 cases in zone A (greater trochanter), 46 cases in zone B (around the femoral stem), and 9 cases in zone C (distal to the tip of the femoral stem. Internal fixation is composed of primary and secondary fixation, the main fixation method was the cerclage of steel wire or titanium cable, locking compression plate, and locking attachment plate fixation. The secondary fixation method was the cerclage of titanium cable, which was required to cover three zones A, B and C to form an overall balanced fixation. The modified Harris hip scores (mHHS), plate length, working length and screw number of different internal fixation combinations were compared.Results:The follow-up time was 54.2±21.6 months (range, 11-86 months). All patients showed signs of fracture healing at 10.2±1.5 weeks (range, 7-13 weeks) after operation, and bony union was observed at 19.6±1.3 weeks (range, 17-22 weeks) after operation. No delayed union or nonunion was observed. After operation, one case had a stress fracture and was revised with double-plate internal fixation; one case had a failed internal fixation and was revised with double-plate internal fixation and a large allograft bone graft. The mHHS score of UCSIV.3B2.1 group (80.3±4.6) was the lowest at 6 months after operation, and the difference between the groups of different types was statistically significant ( F=256.72, P<0.001). The score of simple internal fixation group (91.6±4.2) was higher than that of revision combined with internal fixation group (81.9±4.1), and the difference was statistically significant ( t=8.32, P<0.001). The plate length and working length were 24.9±2.5 cm and 12.6±1.7 cm for UCS IV.3B1.1, 25.4±2.6 cm and 13.6±1.8 cm for 3B2.1 and 28.1±2.5 cm and 4.9±1.9 cm for 3C, respectively ( F=5.33, P=0.005; F=6.78, P<0.001). The number of screws in zone A was significant difference among different UCS types ( F=52.67, P<0.001); UCS IV.3B1.1 (6.5±2.3) and 3B2.1 (6.7±2.2) were more than 3B3 (3.5±1.5) and 3C (3.7±1.6). The number of screws in zone B was significant difference among different UCS types ( F=42.15, P<0.001); The number of UCS IV.3B1.1 (2.3±1.6) and 3B2.1 (2.8±1.9) were significantly more than that of 3B3 (1.0±0.5) and 3C (1.2±0.6). The number of screws in zone C was significant differences among different UCS types ( F=39.62, P<0.001); The number of UCS IV.3B1.1 (3.8±1.9) and 3B2.1 (3.9±1.7) were more than that of 3B3 (2.0±0.5), the difference was statistically significant ( P<0.05). Conclusion:The function of hip after simple internal fixation of proximal femoral periprosthetic fractures was better than that of those who underwent revision at the same time; the number of screws of UCSIV.B1 and B2 is more than that of B3.

Application of PBL-based scenario simulation teaching in the standardized residency training in the department of critical care medicine / 中华医学教育探索杂志

Objective:To explore the role and effect of problem-based learning (PBL)-based scenario simulation teaching in the standardized residency training in the department of critical care medicine.Methods:A total of 48 residents who received standardized residency training in the Department of Critical Care Medicine of the First Affiliated Hospital of Soochow University from March 2019 to December 2019 were randomly divided into the experimental group and the control group, with 24 ones in each group. The experimental group used PBL-based scenario simulation teaching, while the control group adopted the traditional teaching. After the end of the teaching, the exam scores of the two groups were observed and compared. Then the questionnaire was used to analyze the differences of the results. SPSS 17.0 was used for t-test. Results:The scores of theoretical assessment (85.50±5.15) and skill assessment (82.38±5.64) in the experimental group were higher than those in the control group[(77.04±8.69) and (70.92±5.65)], and the differences were statistically significant ( P < 0.05). The experimental group was higher than the control group in improving learning interest and efficiency, improving clinical work ability, strengthening clinical thinking ability, improving teamwork ability, and improving doctor-patient communication ability, and the difference was statistically significant ( P < 0.05). Conclusion:The PBL-based scenario simulation teaching has more advantages over the traditional teaching and is worthy of promotion.

Clinical analysis and follow-up study of 32 children with first diagnosed acute disseminated encephalomyelitis / 国际儿科学杂志

Objective:To analyze the clinical features, risk factors of the prognosis and recurrence of first diagnosed acute disseminated encephalomyelitis(ADEM)in children.Methods:The clinical characteristics of 32 children with first diagnosed ADEM who were treated in the Department of Neurology of Shanghai Children′s Medical Center from January 1, 2012 to January 31, 2022 were analyzed retrospectively and followed up.Results:After follow-up, 27 of the 32 patients were diagnosed as ADEM and 4 were diagnosed as multiphasic disseminated encephalomyelitis(MDEM), 1 was diagnosed as ADEM followed by optic neuritis(ADEM-ON).Among the 27 patients diagnosed with ADEM, most of them were girls, 3~8 years old, had a history of infection before onset, occurred in summer and autumn.Common clinical symptoms included disturbance of consciousness or mental and behavior disorders(27/27, 100.0%), fever(13/27, 48.1%), paralysis(13/27, 48.1%), abnormal defecation(7/27, 25.9%), decreased vision(7/27, 25.9%)and so on.Brain MRI mainly involved subcortical white matter(20/27, 74.1%), cerebellum(10/27, 37.0%), deep nuclei such as thalamus and basal ganglia(7/27, 25.9%)and brainstem(3/27, 11.1%).In 10 cases, myelin oligodendrocyte glycoprotein(MOG)antibody tests showed positive results in 3(30.0%)and negative results in 7(70.0%).There were no significant differences in gender, age, history of infection before onset, season of onset, clinical symptoms, peripheral WBC, CRP, erythrocyte sedimentation rate, levels of WBC and protein in cerebrospinal fluid, electroencephalogram, brain and spinal cord MRI, treatment and prognosis between the MOG antibody positive and negative children(all P>0.05).16 cases (59.3%)were recovery completely, 11 cases (40.7%)were not, the rate of the infection before onset of the former was higher than the latter( P<0.05).27 cases (84.4%)had monophasic course and 5 cases (15.6%)had non-monophasic course, more of the nonmonophasic children′s brain MRI show multiple abnormal signals in the brain than the monophasic children( P<0.05). Conclusion:Children with first diagnosed ADEM require long-term clinical follow-up, and brain MRI show a higher risk of recurrence of multiple abnormal signals in the brain.The prognosis of ADEM children with a history of infection before onset is relatively good.

Association between depression and anxiety symptoms with physical activity among rural returning adolescents / 中国学校卫生

Objective@#To understand the symptoms of depression and anxiety among rural returning adolescents and to analyze their association with physical activity related factors, so as to provide reference for interventions targeting depression and anxiety symtoms in the population.@*Methods@#From April to June 2020, 3 495 middle school students were selected from 6 counties and districts of Shangrao City by random cluster stratified sampling sampling. The Patient Health Questionnaire-9 (PHQ-9) and Generalized Anxiety Disorder-7 (GAD-7) were used to evaluate the depressive and anxiety symptoms among middle school students. The International Physical Activity Questionnaire was used to assess their physical activity levels during the past week. Chi square test and Logistic regression analysis were used to determine the strength of the association between depression and anxiety symptoms and physical activity related factors in returning and non returning adolescents as well as the overall population.@*Results@#Univariate analysis showed significant differences in the prevalence of depressive and anxiety symptoms between rural returning and non returning adolescents and the overall population in terms of "type of school" "family economic situation" "parental occupation" "number of sports classes per week" and "level of physical activity per week" ( χ 2=78.21, 16.56, 135.44, 107.75, 7.10, 8.62; 97.94, 24.26 , 124.07, 90.36, 9.60, 8.34, P <0.05). Multivariate regression analysis showed a correlation between the occurrence of depression and the number of sports classes per week for rural returning and non returning adolescents and the overall population (number of sports classes per week for non returning was 2 times, OR=1.22, 95%CI =1.01-1.49; returning adolescents for 1 time, OR=1.85, 95%CI =1.06-3.23; the overall population for 1 time, OR=1.34, 95%CI =1.01-1.77 and 2 times, OR=1.20, 95%CI =1.01-1.43, P <0.05). There was a correlation between anxiety symptoms and the number of sports classes per week for returning adolescents (number of sports classes per week for returning adolescents was 1 time, OR=2.10, 95%CI=1.21-3.63, P < 0.05 ).@*Conclusion@#A low frequency of weekly sports classes may be a risk factor for depressive or anxiety symptoms in rural and returning adolescents. Rural primary and secondary schools should appropriately increase the number of physical education courses or arrange sports extended classes to promote the development of adolescent mental health.

Genotyping Characteristics of Human Fecal Escherichia coli and Their Association with Multidrug Resistance in Miyun District, Beijing / 生物医学与环境科学（英文）

OBJECTIVE@#To explore the genotyping characteristics of human fecal Escherichia coli( E. coli) and the relationships between antibiotic resistance genes (ARGs) and multidrug resistance (MDR) of E. coli in Miyun District, Beijing, an area with high incidence of infectious diarrheal cases but no related data.@*METHODS@#Over a period of 3 years, 94 E. coli strains were isolated from fecal samples collected from Miyun District Hospital, a surveillance hospital of the National Pathogen Identification Network. The antibiotic susceptibility of the isolates was determined by the broth microdilution method. ARGs, multilocus sequence typing (MLST), and polymorphism trees were analyzed using whole-genome sequencing data (WGS).@*RESULTS@#This study revealed that 68.09% of the isolates had MDR, prevalent and distributed in different clades, with a relatively high rate and low pathogenicity. There was no difference in MDR between the diarrheal (49/70) and healthy groups (15/24).@*CONCLUSION@#We developed a random forest (RF) prediction model of TEM.1 + baeR + mphA + mphB + QnrS1 + AAC.3-IId to identify MDR status, highlighting its potential for early resistance identification. The causes of MDR are likely mobile units transmitting the ARGs. In the future, we will continue to strengthen the monitoring of ARGs and MDR, and increase the number of strains to further verify the accuracy of the MDR markers.

Anti-osteoporosis mechanism of Panax quiquefolium L. based on zebrafish model and metabonomics / 药学学报

In this study, we investigated the anti-osteoporotic activity and mechanism of action of extract of Panax quiquefolium L. based on zebrafish model combined with metabolomics technology. A zebrafish model of prednisolone-induced osteoporosis was used to compare the anti-osteoporotic activity of Panax quiquefolium L., and the expression of osteoblast-associated genes and osteoclast-associated genes in zebrafish was detected by quantitative real-time PCR (qRT-PCR), using bone fluorescence area and fluorescence density as evaluation indexes. Metabolomics based on ultra-high performance liquid chromatography-mass spectrometry (UPLC-MS) was used to explore the change patterns of biomarkers and the metabolic pathways affected. The results showed that the 50% ethanol extracts of Panax quiquefolium L. from Jilin, Canada, Wenden and the United States can significantly improve the bone fluorescence area of zebrafish compared with model group. Furthermore, four sources 50% ethanol extracts of Panax quiquefolium L. except United States also can significantly improve the bone fluorescence density of zebrafish. In addition, PCR showed that extract of Panax quiquefolium L. can significantly up-regulated the expression of vitamin D receptor b (vdrb), collagen type I α2 (col1a2) and cysteine-rich acidic secreted protein (sparc) genes, and down-regulated the expression of matrix metalloproteinase 9 (mmp9), anti-tartrase acid phosphatase (trap) and cathepsin K (ctsk) genes. Metabolomic analysis identified 24 key differential metabolites. Furthermore, pathway analysis showed that Panax quiquefolium L. could regulate the levels of 10 key biomarkers by participating in purine metabolism, tricarboxylic acid cycle and pentose phosphate metabolism and improve the osteoporosis status of zebrafish. This study preliminically revealed the anti-osteoporosis mechanism of 50% ethanol extract from Panax quiquefolium L. through multi-component, multi-target and multi-pathway and also provides theoretical basis for clinical development and utilization of anti-osteoporosis products of Panax quiquefolium L. This experiment was approved by the Experimental Animal Welfare Ethics Committee of the Institute of Biology, Shandong Academy of Sciences (approval number: SWS20181002).

Preparation and Biodistribution of 131I-labeled Hepatoma Nucleic Acid Nanotrain / 中山大学学报(医学科学版)

ObjectiveTo construct 131Ⅰ-labeled hepatoma nucleic acid nanotrain and to explore its feasibility as a new nuclide carrier targeting hepatoma. MethodsThree short nucleic acid chains self-assembled to a long nucleic acid chain after being annealed， and 131Ⅰ-NT was obtained by radioiodine labeling using chloramine T method. The labeling efficiency and radiochemical purity of the nanoparticles were measured by paper chromatography. The stability of the labeled products in vitro at different temperatures and different storage solvents was detected. The specific uptake of nanoparticles by hepatocellular carcinoma cells was observed by laser confocal microscopy， and the radioactive uptake ratio of 131Ⅰ-NT combined with human hepatocellular carcinoma cell HepG2 and normal hepatocyte L02 was measured. The biodistribution of 131Ⅰ-NT was obtained through injecting 131Ⅰ-NT into HepG2 tumor-bearing mice via tail vein. ResultsThe labeling rate of 131Ⅰ-NT was （93.05±0.74） %， and the radiochemical purity post purification was （98.35±0.32） %. Its radiochemical purity in PBS and pure serum at 4℃ for 24 h was （92.77±0.04） % and （89.43±0.2） %， respectively. The radioactivity uptake rate of HepG2 cells was higher than that of L02 cells after 131Ⅰ-NT was incubated with two kinds of cells for 2 h significantly. After injection of 131Ⅰ-NT through tail vein， the radioactive uptake per gram of tumor tissue were （4.9±0.55）%ID/g， （10.12±0.32）%ID/g and （4.25±0.31）%ID/g at 30 min， 1 h and 2 h， respectively. The T/M ratio was 7.33±2.04， 36.54±12.72 and 44.93±7.90 respectively. ConclusionsThe 131Ⅰ-labeled long chain nucleic acid nanotrain was constructed successfully， which possesses relatively high stability in vitro ， and high targeting ability to HepG2 cells in vitro and HepG2 tumor-bearing mouse model. Our study demonstrated that 131Ⅰ-NT may be a potential radionuclide carrier targeting human liver cancer， which provides a new idea for the targeted radionuclide diagnosis and treatment of hepatocellular carcinoma.

Multi-centre survey and analysis of individual therapy of antimicrobial agents in children / 中国药房

OBJECTIVE To investigate the development of individual therapy of antimicrobial agents in pediatric patients. METHODS A questionnaire survey was conducted to investigate the individual therapy of antimicrobial agents in 30 children’s hospitals and pediatric departments of general hospitals in China. The survey data was analyzed statistically by Microsoft Excel 2007 and SPSS 26.0 software. RESULTS In this survey， 75 questionnaires were collected， and 53 of them were valid with an effective rate of 70.7%. The results showed that 86.7% （26/30） of the hospitals carried out individual therapy of antimicrobial agents in different forms. Clinical needs primarily contributed to the individual therapy in these hospitals， while the insufficient personnel and equipment were the biggest obstacles for individual therapy. The proportions of hospitals， who implemented evidence- based pharmacy， therapeutic drug monitoring （TDM）， model-informed precision dosing （MIPD） and antimicrobial-related genetic tests were 70.0%， 80.0%， 30.0% and 33.3%， respectively. Various detection methods of TDM were carried out in various hospitals， and the antimicrobial agents which needed TDM focused on vancomycin and voriconazole. Moreover， nearly half of pharmacists did not know much about MIPD. CONCLUSIONS At present， TDM is the main way to develop individual therapy of antimicrobial agents in various hospitals， but its monitoring coverage and testing standards need to be improved. MIPD and antimicrobial-related gene tests still need to be further promoted in clinical practice.

Analysis of clinical characteristics of patients with different vaccines and underlying diseases infected with novel coronavirus Omicron variant / 中华危重病急救医学

Objective:To analyze the clinical characteristics of patients inoculated with different vaccines and underlying diseases, infected with the novel coronavirus Omicron variant.Methods:The data of 430 patients infected with the novel coronavirus Omicron variant who were admitted to Tianjin First Center Hospital from January 21, 2022 to March 7, 2022 were collected. A total of 108 patients with Omicron variant infection with underlying diseases were selected and enrolled. The gender, age, body mass index (BMI), history of underlying diseases, vaccination status (vaccination times, vaccination type), clinical symptoms, laboratory test indicators, imaging data, hospitalization time, nucleic acid negative conversion time, re-positivity and antibody titer from the two groups of the patients were collected and analyzed.Results:In the 108 patients, 93 cases received inactivated vaccine and 15 cases received adenovirus vaccine. There was no statistically significant difference between the two groups in terms of gender, age, BMI, disease types, whether completed the fully vaccinated, whether had prime boost and underlying diseases. Both groups had fever, dry cough, sore throat, runny nose and other clinical symptoms, but there were no statistical difference between the two groups. There were no statistically significant differences in laboratory blood routine tests, biochemical indexes, C-reactive protein (CRP) level and the results of chest computed tomography (CT) imaging between the two groups. There were no statistically significant differences in hospitalization days, nucleic acid negative conversion time, whether admission to intensive care unit (ICU), turn re-positive on nucleic acid tests and immunoglobulin M (IgM) antibody titer expression between the two groups, but immunoglobulin G (IgG) antibody titer in adenovirus group was higher than that in inactivated group (g/L: 229.67±26.13 vs. 194.33±61.56, P = 0.020). There were also no significant differences in laboratory examinations, hospitalization days, nucleic acid negative conversion time, turn re-positive on nucleic acid tests and Novel coronavirus antibody titers expression of the patients with booster shots between the inactivated vaccine group and the adenovirus vaccine group. Conclusions:The protection of inactivated virus vaccine is equivalent to adenovirus vaccine in patients with underlying disease Omicron variant infection, and the titer of IgG antibody in patients with adenovirus vaccine is higher than that in patients with inactivated virus vaccine after one week of recovery.

Establishment of gene diagnosis model of diabetic kidney disease based on bioinformatics / 国际生物医学工程杂志

Objective:To explore the potential biomarkers and pathogenesis of diabetic kidney disease (DKD) using bioinformatics techniques.Methods:Three DKD glomerular tissue datasets, GSE30528, GSE96804, and GSE104948, were downloaded from the gene expression database. The bioinformatics techniques, combined with machine learning, were applied to screen DKD biomarkers and establish a DKD gene diagnostic model. The CIBERSORT algorithm was applied to analyze immune cell infiltration in DKD glomerular tissue. The correlation between biomarkers and immune cells, model risk scores, and the glomerular filtration rate (eGFR) of patients was investigated.Results:A three-gene model consisting of G6PC, CDH10 and TPPP3 was screened and established from 26 differentially expressed genes, which showed good diagnostic efficacy in both the training set (AUC=0.984) and validation set (AUC=0.992). Analysis of infiltrating immune cells in DKD glomerular tissue showed that γδ T cells, activated NK cells, M2 macrophages, resting dendritic cells, resting mast cells, activated mast cells, and neutrophils may be involved in the DKD process, and that G6PC, CDH10 and TPPP3 were associated with multiple immune cell infiltrations. Using the model to calculate the risk score of DKD patients, the higher the score, the lower the eGFR level, and the risk score was significantly negatively correlated with the eGFR level. Conclusions:G6PC, CDH10 and TPPP3 can be good diagnostic markers for DKD, correlate with DKD immune cell infiltration, and be used as targets for DKD diagnosis and treatment.

Effects of Linc00460 on Aerobic Glycolysis in Breast Cancer Cells via Sponge Adsorption of miR-320a / 肿瘤防治研究

Objective To explore the effect of Linc00460 on the aerobic glycolysis of breast cancer (BC) cells through sponge adsorption of miR-320a. Methods The qRT-PCR method was used to detect Linc00460 and miR-320a expression levels in normal breast epithelial cell line MCF-10A and five BC cell lines. The effect of interfering Linc00460 on miR-320a expression was detected by qRT-PCR. The double luciferase reporter gene experiment was used to analyze the targeting relationship between miR-320a and Linc00460. In addition, the si-Linc00460 and miR-320a inhibitor were co-transfected into MDA-MB-231 cells, and the expression level of miR-320a in the cells was detected by qRT-PCR; cell proliferation ability was measured by the MTT method; glucose uptake rate was detected by 2-NBDG method; the content of lactic acid in the cell supernatant was detected by colorimetric method; the key enzymes of glycolysis was detected by the enzyme activity kit; and the expression levels of the key proteins in the glycolysis pathway were detected by Western blot. Results Linc00460 was highly expressed in five BC cell lines, while miR-320a was lowly expressed as compared with MCF-10A cells. The expression of miR-320a in MDA-MB-231 cells significantly increased after interfering with Linc00460. The double luciferase reporter gene experiment confirmed that miR-320a and Linc00460 could target binding. Interfering with the expression of Linc00460 could inhibit MDA-MB-231 cells proliferation (all P=0.000), reduce the rate of cellular glucose uptake and the content of lactic acid in the cell supernatant (all P=0.000), inhibit the activities of PFK, PK, and LDH enzymes (all P=0.000), and downregulate the protein expression levels of PFKM, GLUT1, and LDHA (all P=0.000). Meanwhile, inhibition of miR-320a could reverse the inhibitory effect of si-Linc00460 on the proliferation and glycolysis of MDA-MB-231 cells (all P=0.000 or 0.001). Conclusion Linc00460 might adsorb miR-320a, consequently leading to upregulation of PFKM expression, thereby promoting aerobic glycolysis in BC cells.

Advances in myelin oligodendrocyte glycoprotein antibody-associated disease / 国际儿科学杂志

Myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD) is one of inflammatory demyelinating disorders of the central nervous system.Due to the diverse and atypical clinical manifestations, positive rate of current detection methods is not high, and early diagnosis is difficult.This review aims to elucidate the research progress of the epidemiology, pathogenesis, clinical characteristics, diagnostic criteria, biological markers, treatment and prognosis of MOGAD, in order to improve the understanding of MOGAD for clinicians, so as to identify, treat and reduce the recurrence of MOGAD as early as possible.

Influencing factors of the early vault after phakic posterior chamber implantable collamer lens implantation / 国际眼科杂志(Guoji Yanke Zazhi)

AIM:To observe the early variation trend of the vault after phakic posterior chamber implantable collamer lens/toric implantable collamer lens(ICL/TICL V4c)implantation and analyze the related influencing factors.METHODS:In this retrospective study, a total of 49 patients(98 eyes)who underwent ICL/TICL V4c implantation in the Lanzhou Huaxia Eye Hospital from October 2020 to March 2021 were enrolled. Preoperative ocular biometric parameters were collected, including spherical equivalent(SE), intraocular pressure, axial length, anterior chamber depth(ACD), lens thickness(LT), central corneal thickness, anterior chamber angle(ACA), anterior chamber volume(ACV), white to white corneal diameter(WTW), mean keratometry K1 and K2, and intraoperative implantation size of ICL. The vault was measured by anterior segment optical coherence tomography(AS-OCT)at 1, 3d, 1wk and 1mo after surgery. The patients were divided into insufficient vault group(&#x003C;250μm, 12 eyes), normal vault group(250-750μm, 62 eyes)and excessive vault group(&#x003E;750μm, 24 eyes)according to the vault at 1mo after surgery. The factors affecting the postoperative vault were analyzed.RESULTS:The mean vault values at 1 and 3d, 1wk and 1mo after surgery were 591.05±293.44, 599.62±309.78, 592.22±301.49 and 586.69±285.63μm, respectively. There were significant differences in WTW, ACA, ACV, ACD, ICL size and LT at 1mo after surgery(all P&#x003C;0.05). The regression equation of vault at 1mo after surgery was as follows: vault(μm)=-3142.19+388.25×WTW+10.40×ACA-301.63×LT(R=0.674, R2=0.454, adjusted R2=0.436). WTW had the greatest influence on vault at 1mo after surgery(β=0.47, P&#x003C;0.001), followed by LT(β=-0.34, P&#x003C;0.001)and ACA(β=0.17, P=0.047).CONCLUSION:WTW, ACA and LT were the main factors that affected and predicted the vault at 1mo after ICL/TICL V4c implantation.

Consensus of experts on the medical risk prevention for the patients with cardiovascular diseases during dental treatment (2022 edition) / 中华口腔医学杂志

With the aging process of population in the society, the prevalence of cardiovascular diseases (CVD) in China is increasing continuously and the number of dental patients with CVD is increasing gradually too. Due to the lack of guidelines for dental patients with CVD in our country, how to implement standardized preoperative evaluation and perioperative risk prevention remains a problem to be solved for dentists at present. The present expert consensus was reached by combining the clinical experiences of the expert group of the Fifth General Dentistry Special Committee, Chinese Stomatological Association and respiratory and cardiology experts in diagnosis and treatment for CVD patients, and by systematically summarizing the relevant international guidelines and literature regarding the relationship between CVD and oral diseases and the diagnosis and treatment of dental patients with heart failure, hypertension and antithrombotic therapy. The consensus aims to provide, for the dental clinicians, the criteria on diagnosis and treatment of CVD in dental patients in China so as to reduce the risk and complications, and finally to improve the treatment levels of dental patients with CVD in China.

Consensus of experts on the oral health management and medical risk prevention for the patients with chronic airway diseases (2022 edition) / 中华口腔医学杂志

Today, there is greater awareness on the association between oral diseases and respiration diseases after the outbreak of COVID-19. However, confusion regarding the oral health management and medical risk prevention for patients with chronic airway diseases has been remained among dental clinicians. Therefore, the dental experts of the Fifth General Dentistry Special Committee, Chinese Stomatological Association, combined with the experts of respiratory and critical care medicine, undertook the formation of consensus on the oral health management of patients with chronic airway diseases in order to help dental clinicians to evaluate medical risks and make better treatment decision in clinical practice. In the present consensus report, the relationship of oral diseases and chronic airway diseases, the oral health management and the treatment recommendations of patients with chronic airway diseases are provided.

Anti-tumor activity of yeast vesicle biomimetic nanomedicine with the ability of active tumor penetration / 药学学报

The dense extracellular matrix (ECM) of the tumor severely limits the deep penetration of nanomedicine and weakens its anti-tumor effect. Based on this, the yeast vesicle biomimetic nanomedicine with active deep penetration ability of tumor tissue was designed and developed for enhanced tumor therapy. Results of characterization showed that the yeast cell vesicles (YCV) displayed a spherical morphology with diameter of around 100 nm and was well dispersed. Then the chemotherapeutic drug doxorubicin (DOX) was selected as a model drug, and DOX was loaded into YCV to obtain YCV/DOX through electrostatic interaction, the encapsulation efficiencies of DOX were calculated as 82.5%. The drug release profile of YCV/DOX implied that DOX release showed a manner of pH-dependent, it may be that pH has affected the electrostatic effect of YCV and DOX. Compared with liposomes (Lipo), in vitro cell experiments showed that YCV from natural sources had stronger permeability in three-dimensional multicellular spheres. It is speculated that the mechanism may be good deformation capacity of YCV. A 4T1 xenograft tumor model was established to evaluate the therapeutic efficacy of YCV/DOX. The results suggested that YCV/DOX has stronger tumor tissue penetration ability and could effectively inhibit the tumor growth. All animal experiments were performed in line with national regulations and approved by the Animal Experiments Ethical Committee of Zhengzhou University. This study brings new ideas for the development of biomimetic nanomedicine to overcome the ECM of solid tumors.

Assessment of occupational health risk of noise in a plastic products enterprise / 中国职业医学

@#Objective To assess the occupational health risk of noise in a plastic products enterprise and determine the key risk Methods - points. The workplace of a plastic products enterprise and its 388 noise exposed workers were selected as the ， research subjects using a convenient sampling method. The noise intensity in the workplace of the enterprise was measured and - GBZ/T 229.4-2012 the individual noise exposure level and pure tone hearing test were carried out in the noise exposed workers. Classification of Occupational Hazards at Workplaces--Part 4： Occupational Exposure to Noise（ GBZ/T hereinafter referred to as 229.4-2012） - was used to evaluate the hazardous degree of noise in different posts. The risk of high frequency hearing loss （ ） - （ ） - ， ， HFHL and occupational noise induced deafness ONID in noise exposed workers in different posts at 45.0 50.0 55.0 and WS/T 754-2016 Guideline for Risk Management of Occupational Noise Hazard（ 60.0 years of age were predicted using hereinafter WS/T 754-2016）Results referred to as . The noise in the workplace of this plastic product enterprise was found to exceed the - occupational exposure limits with the rate of 46.6%. The maximum level of normalization of equivalent continuous A weighted - （ ） sound pressure level to a nominal 40 h working week of exposure to noise in workers of six posts was 84.0 93.0 dB A . - ， ， ， According to GBZ/T 229.4 2012 the noise hazards of the posts including extrusion premixing unloading and utility - ， maintenance were mild or moderate except for the film and packaging posts. According to WS/T 754 2016 the risks of HFHL in ， ， the film and packaging operators at age ≥50.0 years old were at acceptable risk and the risks of HFHL in operators of extrusion ， ， premixing unloading and utility maintenance at age ≥45.0 years old were at moderate risk or high risk. The risks of ONID for ， the film packaging and utility maintenance operators at age ≥55.0 years old were at acceptable risk or moderate risk. The risksof ONID for extrusion premixing and unloading operators at age ≥50.0 years old were at high risk. Extrusion operators with （ ） exposure to toluene below the occupational exposure limit had a higher risk of HFHL high risk than unloading operators （ ） Conclusion moderate risk at age 45.0 years with the same noise intensity. The noise exposure intensity is high in the ， workplace of the plastic product enterprise. The workers in posts of extrusion premixing and unloading are at high risk levels of HFHL and ONID.

Genetics of hypercalciuric stone forming diseases / 中华泌尿外科杂志

Hypercalciuria, as a common clinical feature of kidney stones, is a common feature of hereditary diseases such as idiopathic hypercalciuria, autosomal dominant hypocalcaemia, Bartter's syndrome, Dent disease, hereditary hypophosphataemic rickets with hypercalciuria, infantile hypercalcaemia, familial hypomagnesemia with hypercalciuria and nephrocalcinosis, hereditary distal renal tubular acidosis, However, the clinical phenotypes and genotypes of these hypercalciuric kidney stones have their own characteristics. We summarized the results of recent genetic studies on hypercalciuria to promote clinical screening, diagnosis and reasonable treatment.

Recommendations for prescription review of antipyretic-analgesics in symptomatic treatment of children with fever / 中华实用儿科临床杂志

Antipyretic-analgesics are currently one of the most prescribed drugs in children.The clinical application of antipyretic-analgesics for children in our country still have irrational phenomenon, which affects the therapeutic effect and even poses hidden dangers to the safety of children.In this paper, suggestions were put forward from the indications, dosage form/route, dosage suitability, pathophysiological characteristics of children with individual differences and drug interactions in the symptomatic treatment of febrile children, so as to provide reference for the general pharmacists when conducting prescription review.