Objective:To assess the epidemic characteristics of serum of viral hepatitis B infection ranging in age from 1 to 69 years old in Jilin province in 2024. The genotypes of hepatitis B virus-infected individuals were determined.Methods:In 2024，2 313 people ranging in age from 1 to 69 years old in Jilin province were selected by using multi-stage random sampling method for field epidemiological investigation of hepatitis B. The serum samples were collected and detected for the hepatitis B virus（HBV）surface antigen（HBsAg），HBV surface antibody（HBsAb），HBV core antibody（HBcAb），HBV E antigen（HBeAg）and HBV E antibody（HBeAb）by ELISA，and the data were analyzed by the national epidemiological dynamic data collection platform，SPSS 18.0 software. Genotyping is conducted based on the internationally recognized large S region gene fragment.Results:The vaccination rates for hepatitis B among people aged 1-4，5-14，15-29 and 30-69 were 97.00%，94.66%，74.59% and 2.88%，respectively. There were significant differences in hepatitis B vaccination rates across age groups surveyed in 2024（ χ2=1 041.41， P<0.05）. In 2024，the HBsAg carrying rate，HBsAb positive rate，HBV infection rate，HBeAb positive rate and HBeAg positive rate of people in Jilin province were 0. 86%，47.99%，2.25%，5.58% and 5.14%，respectively. The genotype of hepatitis B virus in the infected person is B2 and C2. Conclusions:In 2024，the indicators of HBV infection in Jilin province were good. The highest rate of hepatitis B infection was 11.54% in people with 30-69 years of age and the high vaccination rate of people should continue to be maintained，and the vaccination of hepatitis B vaccine for adults should be strengthened to reduce the risk of infection in these susceptible groups.

Objective:To explore the efficacy and prognosis of preoperative treatment based on arterial infusion chemotherapy (PTAC) in patients with advanced gastric cancer.Methods:Clinical and follow-up data of 821 patients with advanced gastric cancer who received PTAC treatment at the General Hospital of the Eastern Theater Command of the People's Liberation Army from January 2001 to January 2021 were collected. According to the treatment regimen, patients were divided into the FLEEOX group (89 cases), the XEEOX group (196 cases), the SEEOX group (406 cases), and the SEEOX+PD-1 group (130 cases). The primary endpoint was the 3-year progression-free survival rate. Secondary endpoints included the 3-year overall survival rate, objective response rate, radical resection rate, major pathological response rate, and incidence of treatment associated adverse events.Results:After PTAC treatment, the objective response rate was 74.9% (615/821). A total of 671 patients underwent radical surgery, with a radical resection rate of 81.7% and an R0 resection rate of 70.2% (576/821). The pathological complete response rate was 16.7% (112/671), and the major pathological response rate was 32.2% (216/671). With an average follow-up of 27.7 months, the 3-year progression-free survival rate was 52.2%, and the 3-year overall survival rate was 55.8%. The 3-year progression-free survival rate of patients in the SEEOX+PD-1 group was 66.9%, the objective response rate was 83.8% (109/130), the major pathological response rate was 45.3% (53/117), and the radical resection rate was 90.0% (117/130), all of which were better than those in the XEEOX and SEEOX groups (all P＜0.05). However, during the treatment period, three patients in the SEEOX+PD-1 group died from immune-related adverse events. Conclusion:PTAC treatment is an effective preoperative treatment method for advanced gastric cancer, and is expected to further improve the treatment effect when combined with immunotherapy such as PD-1 monoclonal antibodies.

Objective:To assess the epidemic characteristics of serum of viral hepatitis B infection ranging in age from 1 to 69 years old in Jilin province in 2024. The genotypes of hepatitis B virus-infected individuals were determined.Methods:In 2024，2 313 people ranging in age from 1 to 69 years old in Jilin province were selected by using multi-stage random sampling method for field epidemiological investigation of hepatitis B. The serum samples were collected and detected for the hepatitis B virus（HBV）surface antigen（HBsAg），HBV surface antibody（HBsAb），HBV core antibody（HBcAb），HBV E antigen（HBeAg）and HBV E antibody（HBeAb）by ELISA，and the data were analyzed by the national epidemiological dynamic data collection platform，SPSS 18.0 software. Genotyping is conducted based on the internationally recognized large S region gene fragment.Results:The vaccination rates for hepatitis B among people aged 1-4，5-14，15-29 and 30-69 were 97.00%，94.66%，74.59% and 2.88%，respectively. There were significant differences in hepatitis B vaccination rates across age groups surveyed in 2024（ χ2=1 041.41， P<0.05）. In 2024，the HBsAg carrying rate，HBsAb positive rate，HBV infection rate，HBeAb positive rate and HBeAg positive rate of people in Jilin province were 0. 86%，47.99%，2.25%，5.58% and 5.14%，respectively. The genotype of hepatitis B virus in the infected person is B2 and C2. Conclusions:In 2024，the indicators of HBV infection in Jilin province were good. The highest rate of hepatitis B infection was 11.54% in people with 30-69 years of age and the high vaccination rate of people should continue to be maintained，and the vaccination of hepatitis B vaccine for adults should be strengthened to reduce the risk of infection in these susceptible groups.

Objective:To explore the efficacy and prognosis of preoperative treatment based on arterial infusion chemotherapy (PTAC) in patients with advanced gastric cancer.Methods:Clinical and follow-up data of 821 patients with advanced gastric cancer who received PTAC treatment at the General Hospital of the Eastern Theater Command of the People's Liberation Army from January 2001 to January 2021 were collected. According to the treatment regimen, patients were divided into the FLEEOX group (89 cases), the XEEOX group (196 cases), the SEEOX group (406 cases), and the SEEOX+PD-1 group (130 cases). The primary endpoint was the 3-year progression-free survival rate. Secondary endpoints included the 3-year overall survival rate, objective response rate, radical resection rate, major pathological response rate, and incidence of treatment associated adverse events.Results:After PTAC treatment, the objective response rate was 74.9% (615/821). A total of 671 patients underwent radical surgery, with a radical resection rate of 81.7% and an R0 resection rate of 70.2% (576/821). The pathological complete response rate was 16.7% (112/671), and the major pathological response rate was 32.2% (216/671). With an average follow-up of 27.7 months, the 3-year progression-free survival rate was 52.2%, and the 3-year overall survival rate was 55.8%. The 3-year progression-free survival rate of patients in the SEEOX+PD-1 group was 66.9%, the objective response rate was 83.8% (109/130), the major pathological response rate was 45.3% (53/117), and the radical resection rate was 90.0% (117/130), all of which were better than those in the XEEOX and SEEOX groups (all P＜0.05). However, during the treatment period, three patients in the SEEOX+PD-1 group died from immune-related adverse events. Conclusion:PTAC treatment is an effective preoperative treatment method for advanced gastric cancer, and is expected to further improve the treatment effect when combined with immunotherapy such as PD-1 monoclonal antibodies.

Objective:To compare the impact of orthodontic treatment on pulp volume in adolescents and adults.Methods:Cone-beam CT data of 62 patients undergoing orthodontic treatment at the Department of Orthodontics, Stomatological Hospital of Chongqing Medical University, from January 2019 to March 2022 were collected. Patients were divided into two age groups (31 patients in each group): adolescent group (aged 13-17, 17 males and 14 females) and adult group (aged 21-25, 12 males and 19 females). Pre-and post-treatment reconstructions of the pulp and dental tissues of upper first molars (UM1) and lower central incisors (L1) were performed. Measurements included pulp volume for UM1 (UM1 P) and L1 (L1 P), pulp chamber volume (UM1 PC) and root canal volume (UM1 RC) for UM1, root length for L1 (L1 RL), and mesiobuccal root length for UM1 (UM1 RL), as well as chamber heights at specific landmarks [the lengths from the central fossa fusion site to the roof of the pulp chamber (H1), the floor of the pulp chamber (H2), the nearest point of root divergence as well as crown-root bifurcation (H3), the farthest point of root divergence (H4), and the pulp chamber height (H5)] in UM1. Changes in these indices were calculated and analyzed using paired and independent sample t-tests for within-group and between-group differences, respectively. Pearson correlation was used to assess potential associations among H5, root length, and pulp volume changes. Results:Before and after orthodontic treatment, no significant difference was observed in the adult group for L1 P ( t=-0.03, P=0.975), while significant differences were noted for UM1 P, UM1 PC, and UM1 RC ( t=9.98, P<0.001; t=9.04, P<0.001; t=6.69, P<0.001). In the adolescent group, significant differences were found for both L1 P and UM1 P ( t=2.25, P=0.029; t=6.30, P<0.001). After orthodontic treatment, the absolute value changes of UM1 P, UM1 PC, and L1 P in the adolescent group were (19.75±9.58), (15.07±7.65) and (1.89±6.29) mm 3, respectively, and in the adult group were (13.33±9.41), (9.16±7.05) and (0.02±4.66) mm 3, respectively ( t=3.77, P<0.001; t=4.48, P<0.001; t=2.34, P=0.048). There was no significant absolute difference in the amount of UM1 RC between the two groups after orthodontic treatment ( t=0.86, P=0.391). Before and after orthodontic treatment, the absolute value changes of L1 RL, H1 and H5 in the adolescent group were (0.54±0.41), (0.38±0.27) and (0.71±0.33) mm, respectively, and the absolute value changes in the adult group were (0.78±0.62), (0.26±0.20) and (0.57±0.28) mm, respectively ( t=-2.43, P=0.017; t=2.96, P=0.004; t=2.57, P=0.011). Whereas no significant differences were observed for UM1 RL, H2, H3, and H4 ( t=-0.85, P=0.400; t=0.43, P=0.669; t=-0.50, P=0.619; t=1.46, P=0.148). Additionally, significant correlations were found between changes in H5 and UM1 RL with UM1 P ( r=0.35, P<0.001; r=0.19, P=0.030), but not between Changes in L1 RL and L1 P ( r=0.11, P>0.05). Conclusions:The effect of orthodontic treatment on pulp volume in adolescents and adults were different.

Objective:This study aims to obtain the prevalence and features associated with Violence Against Children (VAC) in China and, thus, formulate a prevention strategy.Methods:The mortality-related data of VAC was sourced from the National Disease Surveillance Points System (DSP) during 2013-2021. We analyzed the DSP data regarding children aged 0-17 years old who died from violence. The hospital cases of VAC was sourced from the National Injury Surveillance System (NISS), 2013-2021. We analyzed the data from NISS with the parameter of "intentional injury" caused by VAC in children aged between 0-17 years. Using robust linear regression, we analyze the time trend in the proportion of violence incidence. To understand the variations in the incidence of different types of violence across genders, we apply the chi-square test and adjusted Pearson residuals.Results:The overall trend of death caused by VAC has declined; it was reduced to 0.14/100 000 in 2021 from 0.33/100 000 in 2013. In 2021, male VAC mortality (0.15/100 000) was higher than females (0.13/100 000). The proportion of VAC cases to all injury cases has declined from 3.34% in 2013 to 2.29% in 2021. Among 9 344 VAC cases supervised by hospitals in 2021, the number of males (7 503 cases) was around 4 times that of females (1 841 cases), and the top three modes of violence were blunt tools (64.77%), falls (7.46%) and sharp instruments (6.18%), and 45 cases of sexual violence included 38 girls and 7 boys.Conclusions:The declining death rate due to VAC may be related to the benign development of Chinese society. Prevention strategies targeting training in parenting skills and problem-solving should be prioritized.

Objective:This study aimed to analyze the genomic characteristics of Varicella-Zoster Virus (VZV) strains circulating in Jilin province from 2010 to 2023.Methods:Vesicle fluid from 78 sporadic cases with VZV infection were collected in Jilin province from 2010 to 2023, after detecting by Real-time PCR, 26 specimens (CT<25) were detected by PCR. Open reading frame 22(ORF22), ORF38 and ORF62 were amplified and analyzed. Genotyping was confirmed by SNPs ORF22 (37902, 38019, 38055, 38081 and 38177) and ORF38 (69424). Vaccine strains were indentified from wild-type strains according to ORF38 (69349) and ORF62 (106262, 107252, and 108111). Sequences were analyzed by homologous comparison and phylogenetic analysis.Results:The comparison with Dumas sequence revealed that SNPs (37902, 38055, 38081 and 38177) in ORF22 and ORF38 (69424) have mutations similar to the pOka strain, which belong to clade 2. Compared to the Dumas and Baike strains, all 26 samples were wild-type strains. JL2016-4 strain changes from threonine to asparaginyl at position 38059, JL2021-4 strain changes from arginine to proline at position 37933, from aspartic acid to tyrosine at position 37935, and from aspartic acid at base 38031 to tyrosine. JL2023-1 strain changes from arginine to leucine at position 37933.Conclusions:VZV has been prevalent for 14 years in Jilin province. The main epidemic strains belong to the clade 2. We should strengthen the monitoring of VZV outbreaks and raise the coverage rate of VZV vaccination.

Objective:To understand the molecular epidemic characteristics and genes of human astrovirus (HAstV) in infantile diarrhea patients in Jilin province from 2017 to 2020.Methods:Fecal samples of hospitalized infants with diarrhea under 5 years of age from January 2017 to December 2020 were collected. The nucleic acids of fecal samples were amplified by reverse transcription-polymerase chain reaction (RT-PCR), the positive amplification products were sequenced, and the phylogenetic tree was constructed.Results:A total of 2 019 fecal samples were collected, of which 71 were positive for HAstV, with a positive rate of 3.5%. Among the cases with positive samples of HAstV, 42 had mixed infection with other viruses causing diarrhea, accounting for 59.2% of the total number of positive cases, half of which were mixed infection with rotavirus and HAstV. From 2017 to 2020, the positive rates of HAstV were 4.69%, 1.98%, 5.93% and 0.43% per year, respectively. There were two epidemic peaks every year and one epidemic peak year every two years. The positive rate of 36-47 months old was the highest, followed by 0-2 months old. A total of 55 sequences were obtained in this study. Phylogenetic tree analysis showed that they all belonged to classical HAstV, including 42 HAstV-1a subtypes, 8 HAstV-1b subtypes and 5 HAstV-5 subtypes.Conclusions:HAstV is one of the important pathogens of diarrhea in children under 5 years of age in Jilin province. The epidemic law has obvious seasonal and age differences. The dominant strain is HAstV-1a.

Objective:To study the protective effects of different concentrations of curcumin on lung injury of rats in dry heat environment.Methods:Fifty Sprague-Dawley rats were randomly (random number) divided into five groups ( n = 10 each group): normal control group (NC), dry heat control group (DHC), and three different concentrations of curcumin pretreated dry-heat groups (50 mg/kg, 100 mg/kg, and 200 mg/kg). Rats in the NC and DHC groups were given a gavage of normal saline, and rats in the curcumin pretreatment groups were given a gavage of curcumin with different concentrations, once a day for 7 consecutive days. At 8th day, all groups except for the NC group were transferred to the climate cabin (The Simulated Climate Cabin for Special Environment of Northwest of China), with a temperature of (41 ± 0.5) and relative humidity of (10 ± 1)%. Rats in each group were anesthetized and sampled after reaching the state of heat stroke at 150 min, and same done to the NC group. Lung tissues were harvested and pathological changes were observed by HE staining. Lung wet/dry (W/D) weight ratio was detected and lung injury indicators such as total protein, white blood cell count and neutrophil count in bronchoalveolar lavage fluid (BALF) were also determined. Results:The lung injury pathology score, W/D weight ratio, total protein, white blood cell count and neutrophil count in BALF were the lowest in the NC group, and the highest in the DHC group, with significant difference ( P <0.01). With the increase of the concentration in the curcumin pretreatment groups, lung injury pathology score, W/D weight ratio, total protein, white blood cell count and neutrophil count in BALF were all declined. There were significant differences among the different concentration groups of curcumin and the NC and DHC groups ( P <0.01). Correlation analysis indicated that lung injury scores were correlated with W/D weight ratio of lung tissue, alveolar total protein content in BALF, white blood cell count, and neutrophil count (correlation coefficient r = 0.879, r = 0.935, r = 0.916, and r = 0.880, respectively, P <0.01). Conclusions:Pretreatment with different concentrations of curcumin can exert protective effects on lung injury of heat stroke rats in dry heat environment. Curcumin may have important clinical value in prevention and treatment of lung injury caused by heat stroke in dry heat environment.

Objective: To evaluate left ventricular (LV) dysfunction in patients with esophageal cancer (EC) during concurrent chemoradiotherapy (CCRT) using real-time three-dimensional speckle tracking echocardiography (3D-STE) and analyze its influence factors. Methods: Thirty-one patients with EC who received CCRT were enrolled in the study.Conventional echocardiography and 3D-STE were performed pre-CCRT and during CCRT (radiotherapy dose reached 40Gy). Three-dimensional parameters including LV end-diastolic volume (EDV), end-systolic volume (ESV), stroke volume (SV), left ventricular ejection fraction (LVEF), global longitudinal strain (GLS) as well as global circumferential strain (GCS) were compared between pre-CCRT and during CCRT. The independent factors on left ventricular function parameters were analyzed. Results: There was no change on LV diameters, LV volumes and LVEF during CCRT (all P>0.05), while LV diastolic function indexes were impaired compared with those of pre-CCRT, demonstrated by the decreased E/A, Em/Am, and increased E/Em(all P<0.05). 3DGLS was also significantly decreased during CCRT compared with that of pre-CCRT (P<0.05), but no significant difference was found in 3DGCS (P>0.05). Multivariate linear regression analysis manifested that cardiac V40(the percentage of cardiac volume as radiotherapy dose reached 40Gy) was an independent determinant of LV 3DGLS in patients with esophageal cancer during CCRT (P<0.05). Conclusions LV GLS provided by real-time 3D-STE could sensitively detect CCRT-induced myocardial injury. Cardiac V40 is independently associated with LV 3DGLS during CCRT, representing the impact of radiotherapy on the subclinical LV function change.