Objective To investigate the current status and serologic characteristics of occult HBV infection in the adult physical examination population in Zigong region. Methods A total of 126 381 patients who were examined in the physical examination center and gastroenterology department of The First People's Hospital of Zigong City from April 2023 to September 2024 were screened, and 21 615 eligible cases were included in the study. The current status of infection was analyzed and serological patterns and serological characteristics of the included individuals were compared. Results This study screened 126 381 patients, all of whom underwent serum HBsAg testing, and 21 615 patients (17.10%) underwent HBV DNA testing, of which 7 992 were HBV DNA positive (>102 IU/mL) and HBsAg negative, accounting for 36.97% of the total number of patients who underwent HBV DNA testing. Anti-HBc positivity was significantly higher than other serologic patterns, and the lowest rate of HBV DNA positivity was found in those who were positive for anti-HBc, anti-HBs and anti-HBe. The lowest male-to-female ratio (1.25:1) was found in patients with both anti-HBc, anti-HBs and anti-HBe positivity, which was significantly lower than that of patients with the other three serologic characteristics (P=0.005). There were no significant differences in age, BMI, AST, ALT, and TBiL levels among patients with different serum characteristics (all P>0.05). The HBV viral load is highest in patients with anti HBc combined with anti HBe positivity, while the HBV viral load is lowest in patients with anti HBc positivity, anti HBs positivity, and all anti HBe positivity (P<0.001). Viral genotypes were predominantly B-type, and there were differences in genotype distribution among the four groups of patients (P<0.001). Conclusion The level of occult HBV infection was high in the adult medical examination population in Zigong region, mostly characterized by anti-HBc positivity, with the lowest male-to-female ratio among patients who were positive for anti-HBc, anti-HBs, and anti-HBe, and the highest HBV viral load among patients who were positive for anti-HBc combined with anti-HBe.

Objective:To explore the structural relationship between WMSDs in the upper limbs and various risk factors in the occupational population in China, based on a large sample epidemiological survey and structural equation analysis, and to establish a structural equation model, so as to lay a foundation for the prevention and control of such diseases.Methods:The Chinese version of the Musculoskeletal Disorders Electronic Questionnaire was used to conduct a nationwide survey on the prevalence of WMSDs in the upper extremity. Six factors related to WMSDs in the upper extremity were extracted by the classification standard of adverse ergonomic factors and their source and confirmatory factor analysis, including work organization, work type, upper extremity work posture, individual factors, upper extremity fatigue and upper extremity WMSDs. The structural equation analysis was carried out and the structural equation model was established.Results:The incidence of WMSDs and fatigue in the upper limbs was 24.44% and 43.76%, respectively. The adjusted structural equation model fitting indicators were generally up to the standard (GFI=1.000, AGFI=1.000, RMSEA=0.043, NFI=0.808, TLI=0.784) . The four exogenous latent variables of work organization, work type, upper limb work posture and individual factors were correlated. There was a strong positive correlation between job type and upper limb work posture ( r=0.865) , a moderate positive correlation between work organization and job type and upper limb work posture ( r=0.570, 0.490) , and a weak negative correlation between individual factors and the other three exogenous latent variables. Upper limb work posture and individual factors had direct effects on upper limb WMSDs, and the effect coefficients were 0.10 and 0.06, respectively. Upper limb fatigue played a mediating role between work organization, work type, upper limb work posture and upper limb WMSDs. The effect coefficient was 0.46, and the composition ratios of indirect effects were 100.0%, 100.0%, and 38.3%, respectively. The direct path effect of upper limb work posture, individual factors and upper limb WMSDs was weaker than the mediating path through upper limb fatigue. Conclusion:When carrying out the prevention and control of upper limbWMSDs, it is necessary to comprehensively consider the pathogenesis path of upper limb muscle fatigue and upper limb WMSDs caused by work organization, work type, and upper limb work posture, so as to provide theoretical reference for improving the prevention and control level of such diseases.

Objective:To explore the structural relationship between WMSDs in the upper limbs and various risk factors in the occupational population in China, based on a large sample epidemiological survey and structural equation analysis, and to establish a structural equation model, so as to lay a foundation for the prevention and control of such diseases.Methods:The Chinese version of the Musculoskeletal Disorders Electronic Questionnaire was used to conduct a nationwide survey on the prevalence of WMSDs in the upper extremity. Six factors related to WMSDs in the upper extremity were extracted by the classification standard of adverse ergonomic factors and their source and confirmatory factor analysis, including work organization, work type, upper extremity work posture, individual factors, upper extremity fatigue and upper extremity WMSDs. The structural equation analysis was carried out and the structural equation model was established.Results:The incidence of WMSDs and fatigue in the upper limbs was 24.44% and 43.76%, respectively. The adjusted structural equation model fitting indicators were generally up to the standard (GFI=1.000, AGFI=1.000, RMSEA=0.043, NFI=0.808, TLI=0.784) . The four exogenous latent variables of work organization, work type, upper limb work posture and individual factors were correlated. There was a strong positive correlation between job type and upper limb work posture ( r=0.865) , a moderate positive correlation between work organization and job type and upper limb work posture ( r=0.570, 0.490) , and a weak negative correlation between individual factors and the other three exogenous latent variables. Upper limb work posture and individual factors had direct effects on upper limb WMSDs, and the effect coefficients were 0.10 and 0.06, respectively. Upper limb fatigue played a mediating role between work organization, work type, upper limb work posture and upper limb WMSDs. The effect coefficient was 0.46, and the composition ratios of indirect effects were 100.0%, 100.0%, and 38.3%, respectively. The direct path effect of upper limb work posture, individual factors and upper limb WMSDs was weaker than the mediating path through upper limb fatigue. Conclusion:When carrying out the prevention and control of upper limbWMSDs, it is necessary to comprehensively consider the pathogenesis path of upper limb muscle fatigue and upper limb WMSDs caused by work organization, work type, and upper limb work posture, so as to provide theoretical reference for improving the prevention and control level of such diseases.

Objective:To investigate the accuracy of next-generation sequencing technology(NGS)in detecting the polymorphisms of HLA-DRB1,DQB1,DQA1,DRB3,DRB4,DRB5,DPA1 and DPB1 alleles in randomly-selected unrelated healthy individuals from Shenzhen Han population,investigate the potential reason for HLA-DRB1 allele dropout in routine NGS,and establish an internal quality control system.Methods:NGS-based HLA class Ⅱ genotyping was performed on 1 012 samples using the MiSeqDxTM platform.The suspected missed alleles indicated by the quality control software and HLA-DRB1 homozygotes were confirmed by PCR-SSOP or PCR-SBT methods.Results:A total of 139 alleles were detected,including HLA-DRB1(45),DRB3(7),DRB4(5),DRB5(7),DQA1(17),DQB1(21),DPA1(10)and DPB1(27).HLA-DRB 1*09:01(17.09％),15:01(10.72％);DRB3*02:02(25.99％),03:01(10.18％);DRB4*01:03(36.46％);DRB5*01:01(15.42％);DQA1*01:02(20.01％),03:02(17.19％);DQB1*03:01(19.47％),03:03(17.98％),05:02(11.66％),06:01(10.67％);DPA1*02:02(54.45％),01:03(31.18％)and DPB1*05:01(39.13％),02:01(16.90％)alleles were the most common alleles in Shenzhen Han population(frequencies＞10％).There was no statistical difference between the gene frequencies of HLA-DRB1 and DQB1 loci in our study.The HLA Common and Well-Documented Alleles in China(CWD2.4)(x2=12.68,P＞0.05).94 cases of HLA-DRB1 homozygous samples detected by NGS were retested by PCR-SSOP or SBT method,and one case of allele dropout at HLA-DRB1 locus was found.SBT method confirmed that the allele of DRB1*04:03 was missed.The laboratory internal quality control system was established.Two cases of new alleles were detected and named by WHO Nomenclature Committee for Factors of the HLA System.Conclusion:The HLA genotyping results based on NGS showed a significantly lower ambiguity rate.The HLA class Ⅱ alleles exhibit genetic polymorphism in the Han population of unrelated healthy individuals in Shenzhen.The independent method based on NGS in clinical histocompatibility testing has limitations and requires internal quality control strategies to avoid allele-dropout events.

OBJECTIVE: The aim was to identify the gene expressions of human cytomegalovirus (HCMV)-infected human umbilical vein endothelial cells (HUVECs) and to study its possible pathogenic mechanism on atherosclerosis using microarray technology. METHODS: The gene expression differences in HCMV AD169 strain-infected HUVECs were studied by the microarray technology to explore the potential molecular mechanism of HCMV infection. The qPCRs were performed to verify the transcriptome results. RESULTS: A total of 2,583 differentially expressed genes, including 407 down-regulated genes and 2,176 up-regulated genes, were detected by the systematic bioinformatics analysis. The Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses showed that the significantly differentially expressed genes were mainly involved in regulating protein kinase activity, inflammatory response, ubiquitination, protein phosphorylation, cell metabolism, and exosomes, among which 12 genes had significant changes and were screened by protein-protein interaction (PPI) analysis and verified by qPCR. The experimental qPCR results were consistent with the microarray results. CONCLUSION The GO and KEGG analyses revealed that the regulation of protein kinase activity, inflammatory response, ubiquitination, protein phosphorylation, and cell metabolism played important roles in the process of endothelial cell infection. Furthermore, 12 genes were involved in the process of HCMV infection of endothelial cells and contributed to the current understanding of the infection and pathogenic mechanisms of atherosclerosis.
Humans ; Cytomegalovirus/genetics* ; Human Umbilical Vein Endothelial Cells ; Atherosclerosis ; Protein Kinases ; RNA, Messenger

OBJECTIVE: To compare the clinical efficacy and safety among three different entry points of needle knife, including tenderness point, intervertebral foramen point and articular process node, for lumbar disc herniation (LDH). METHODS: A total of 105 patients with LDH were randomly divided into a tenderness point group (35 cases, 1 case dropped off ), an intervertebral foramen point group (35 cases) and an articular process node group (35 cases, 1 case dropped off ). In the three groups, the needle knife was given at positive tenderness points of lumbosacral and hip, the external point of intervertebral foramen and the node of vertebral joint process respectively, once a week for a total of 4 times. The scores of Japanese Orthopaedic Association (JOA), Oswestry disability index (ODI), visual analogue scale (VAS) were recorded before treatment, 2 weeks and 4 weeks into treatment, and 3 months follow-up after treatment, and the clinical efficacy and safety was observed. RESULTS: Compared before treatment, the JOA scores in each group were increased 2, 4 weeks into treatment and in the follow-up (P<0.05); 4 weeks into treatment and in the follow-up, the JOA scores in the tenderness point group and the articular process node group were higher than those in the intervertebral foramen point group (P<0.05). Compared before treatment, except for ODI score 2 weeks into treatment in the intervertebral foramen point group, the ODI and VAS scores in each group were decreased 2, 4 weeks into treatment and in the follow-up (P<0.05), and the ODI scores in the tenderness point group and the articular process node group were lower than those in the intervertebral foramen point group (P<0.05). In 2 weeks into treatment, the VAS scores in the tenderness point group and the articular process node group were lower than those in the intervertebral foramen point group (P<0.05); in 4 weeks into treatment and follow-up, the VAS scores in the tenderness point group were lower than the other two groups (P<0.05). After treatment, the clinical efficacy of each group was similar (P>0.05); during the follow-up, the total effective rate in the tenderness point group was higher than that in the intervertebral foramen point group (P<0.05). There were no serious adverse events in each group. CONCLUSION The three different entry points of needle knife all could improve the symptoms of patients with LDH. The comprehensive effect of improving the subjective symptoms, lumbar function, pain degree and long-term curative effect is better in the tenderness point group.
Humans ; Intervertebral Disc Displacement/therapy* ; Lumbar Vertebrae ; Lumbosacral Region ; Retrospective Studies ; Treatment Outcome

Ultra-high performance liquid chromatography-quadrupole time-of-flight tandem mass spectrometry(UPLC-Q-TOF/MS) was used to investigate the effect of Pterocephalus hookeri on serum metabolism of adjuvant arthritis(AA) model rats induced by complete Freund's adjuvant. After the AA model was properly induced, the serum of rats was collected 30 days after treatment. UPLC-Q-TOF-MS chromatograms were collected and analyzed by principal component analysis(PCA) and orthogonal partial least squares discriminant analysis(OPLS-DA). The results revealed that compared with the control group, the model group showed increased content of 12 biomarkers in the serum(P<0.05) and reduced content of the other nine biomarkers(P<0.05). P. hookeri extract could recover the above-mentioned 19 biomarkers to a certain range. Pathway enrichment showed that these markers mainly involved eight metabolic pathways, including valine, leucine, and isoleucine degradation, arachidonic acid metabolism, arginine and proline metabolism, glycerol phospholipid metabolism, primary bile acid biosynthesis, bile acid biosynthesis, tryptophan metabolism, and unsaturated fatty acid biosynthesis. The findings of this study demonstrate that P. hookeri extract can regulate metabolic disorders and promote the regression of metabolic phenotype to the normal level to exert the therapeutic effect on AA rats. This study is expected to provide a certain scientific basis for the biological research on the treatment of rheumatoid arthritis by P. hookeri.
Animals ; Arthritis, Rheumatoid/drug therapy* ; Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal/pharmacology* ; Medicine, Tibetan Traditional ; Metabolomics ; Rats

ObjectiveTo explore the research hotspots and development trends in the field of autism spectrum disorder (ASD) in the past ten years, the literatures of microglia-related neuroinflammation of ASD and the immune regulation and possible pathways of exercise ameliorating ASD symptoms were reviewed. MethodsArticles about microglia-related research in ASD during January, 2012 to December, 2021 were searched in the core collection database of Web of Science. The CiteSpace 5.8.R3 software was used to summarize the main findings, visualize and analyze the annual publication volume, high-frequency keywords and keyword clustering. Results and ConclusionA total of 783 papers were returned. The numbers of papers published increased with time. The neuroinflammation was a research hotspot in the pathogenesis of ASD, among which abnormal activation of microglia and the levels of inflammatory cytokines were important factors in the occurrence and development of ASD. Exercise was an important intervention to improve symptoms of ASD, which may associate with reducing neuroinflammation or regulating microglia-mediated inflammatory pathways.

Objective - （ ） To investigate the effects of nuclear factor erythroid 2 related factor 2 NRF2 on the oxidative stress （ ） Methods ） ，， induced by trichloromethane TCM in human normal hepatocyte L02 cells. i L02 cells were stimulated with 1 2 ， ， ， （ ）， 4 8 12 16 and 20 mmol/L TCM solution dissolved in dimethyl sulfoxide and the control group and blank group were set ， - ， up. After culturing for 24 hours the cell viability was detected by CCK 8 colorimetric method and the concentration of TCM ） -， - stimulation was screened. ii L02 cells in logarithmic growth phase were randomly divided into control group and low medium - ， ， ， and high dose groups. After 24 hours of exposure to 0 4 8 and 12 mmol/L TCM the cells were collected. The activity of （ ）， （ ）， （ - ） （ ） superoxide dismutase SOD catalase CAT glutathione peroxidase GSH Px and the level of malondialdehyde MDA NRF2， - （HO-1）， were detected by colorimetric analysis. The mRNA expression levels of heme oxygenase 1 glutamate cysteine （GCLC） （） （NQO1） - ligase catalytic subunit and NAD P H quinone dehydrogenase 1 were detected by real time fluorescence ， - ， polymerase chain reaction. The protein levels of NRF2 HO 1 GCLC and NQO1 were detected by Western blotting.Results ） ， ， ， ， i When the concentration of TCM was 4 8 12 16 and 20 mmol/L the survival rate of L02 cells decreased （ P ） ， ， significantly compared with the control group all <0.05 . The concentration of 0 4 8 and 12 mmol/L were selected as the ） ， - stimulation doses for subsequent experiments. ii Compared with the control group the activities of SOD and GSH Px in L02 （ P ） （ P ）， - cells in the three doses groups decreased all <0.05 and the levels of MAD increased all <0.05 with a dose effect - （P ）， relationship. The CAT activity of L02 cells in the medium dose group was lower than that in the control group <0.05 and the - （ P ） CAT activity of L02 cells in the high dose group was lower than that in the others three groups all <0.05 . Compared with the ， NRF2 - （P ），NRF2 control group the relative expression levels of mRNA in L02 cells in the low dose group decreased <0.05 - （P ）， NRF2 mRNA in L02 cells in the medium dose group increased <0.05 mRNA and NRF2 protein expression in L02 cells in （ P ） HO-1，GCLC， NQO1 ， the highdose group increased both <0.05 . The relative expression level of mRNA and GCLC NQO1 （ P ） protein expression in L02 cells in the three doses groups increased compared with the control group all <0.05 . The relative NRF2 - - - expression level of mRNA in L02 cells in the high dose group was higher than that in the low and medium dose groups （ P ）， - （P ）， both <0.05 and the relative expression of NRF2 protein was higher than that in the low dose group <0.05 but the HO-1 GCLC - - （ relative expression levels of and mRNA and HO 1 protein level were lower than those in the medium dose group all P ）Conclusion - <0.05 . TCM exposure can inhibit the proliferation of L02 cells by inducing oxidative stress with a dose effect ， relationship. In this process the antioxidant mechanism mediated by NRF2 was activated. The expression of antioxidant defense ， - ， and detoxification related target genes downstream of NRF2 signaling pathway was activated and the expression of HO 1 - GCLC and NQO1 was up regulated to alleviate the oxidative damage caused by TCM.

Objective:To investigate the clinical efficacy of oblique lateral interbody fusion (OLIF) combined with lateral plate (LP) fixation and posterior lumbar interbody fusion (PLIF) combined with pedicle screw fixation in the treatment of adjacent segment disease (ASDis).Methods:Data of 21 ASDis patients treated with OLIF-LP from August 2016 to October 2019 were selected, including 9 males and 12 females; age was 59.3±7.0 years (range, 46-71 years). Target segments: L 2, 3 1 cases (4.8%), L 3, 4 16 cases (76.2%), L 4, 5 4 cases (19.1%). Twenty-one ASDis patients matched with age, sex and surgical segment and treated with PLIF were selected as the control group. The operation time, intraoperative bleeding, postoperative hospital stay, visual analogua scale (VAS), Oswestry disability index (ODI), disc height (DH), intervertebral foramen height (IFH) and lumbar lordosis (LL) were compared between the groups were tested by t-test. VAS score, ODI, DH, IFH and LL were compared within the group by ANOVA, and Bonferroni's test was used for pairwise comparison. Results:All of 42 patients were followed up for 23.7 ±7.4 months (range, 12-36 months). The operation time (97.6 ± 18.0 min) and interpretative bleeding (38.5±62.7 ml) in OLIF-LP group were significantly lower than those in PLIF group (operation time 154.6±42.4 min) and interpretative bleeding (288.6±55.3 ml). There were significant differences between two groups ( t=5.66, P<0.001; t=8.23, P<0.001); the postoperative hospital stay 4.4±1.3 d in OLIF-LP group was longer than that in PLIF group 5.1±1.2 d, but there was no significant difference ( t=1.93, P=0.061); VAS score in OLIF-LP group at 1 month and 3 months after operation (1.6 ± 0.9 points, 1.4 ± 0.8 points), and the ODI index (29.4%±4.7%) after one month operation was improved better than that of PLIF group ( t=2.48, P=0.017; t=2.35, P=0.024; t=2.28, P=0.029), but there was no significant difference between the 12 months after operation of two groups ( t=0.99, P=0.329; t=0.86, P=0.395). The immediately after operation, 3 months after operation and 12 months after operation of DH, IFH and LL in the two groups were significantly improved compared with those before operation ( P<0.05). The immediately after operation, 3 months after operation and 12 months after operation of DH and IFH in the OLIF-LP group were better than those in the PLIF group ( P<0.05), while LL had no significant difference ( P>0.05). There were 2 cases (9.52%) in each group with cage sinking, but no clinical symptoms occurred. In the OLIF-LP group, there was no injury of blood vessels, nerves or abdominal organs during operation, and 2 patients had transient lower limb pain after operation; In the PLIF group, 2 cases (9.52%) of dural rupture were repaired during operation, and no cerebrospinal fluid leakage occurred after operation; Postoperative lower limb pain was aggravated in 3 cases, and improved after dehydration, anti-inflammatory and analgesic treatment; 2 cases of incision exudation healed after symptomatic treatment. Conclusion:OLIF combined with LP fixation has the same clinical effect as PLIF in the treatment of lumbar ASDis, but OLIF combined with LP fixation has more advantages in surgical trauma, postoperative recovery and related complications.