PURPOSE: This study aims to identify the prevalence and risk factors of military training-related abdominal injuries and help plan and conduct training properly. METHODS: This questionnaire survey study was conducted from October 2021 to May 2022 among military personnel from 6 military units and 8 military medical centers and participants' medical records were consulted to identify the training-related abdominal injuries. All the military personnel who ever participated in military training were included. Those who refused to participate in this study or provided an incomplete questionnaire were excluded. The questionnaire collected demographic information, type of abdominal injury, frequency, training subjects, triggers, treatment, and training disturbance. Chi-square test and t-test were used to compare baseline information. Univariate and multivariate regression analyses were used to explore the risk factors associated with military training-related abdominal injuries. RESULTS: A total of 3058 participants were involved in this study, among which 1797 (58.8%) had suffered training-related abdominal injuries (the mean age was 24.3 years and the service time was 5.6 years), while 1261 (41.2%) had no training-related abdominal injuries (the mean age was 23.1 years and the service time was 4.3 years). There were 546 injured patients (30.4%) suspended the training and 84 (4.6%) needed to be referred to higher-level hospitals. The most common triggers included inadequate warm-up, fatigue, and intense training. The training subjects with the most abdominal injuries were long-distance running (589, 32.8%). Civil servants had the highest rate of abdominal trauma (17.1%). Age ≥ 25 years, military service ≥ 3 years, poor sleep status, and previous abdominal history were independent risk factors for training-related abdominal injury. CONCLUSION More than half of the military personnel have suffered military training-related abdominal injuries. Inadequate warm-up, fatigue, and high training intensity are the most common inducing factors. Scientific and proper training should be conducted according to the factors causing abdominal injuries.
Humans ; Military Personnel ; Risk Factors ; Prevalence ; Male ; Abdominal Injuries/etiology* ; Female ; Adult ; Surveys and Questionnaires ; Young Adult

OBJECTIVES: To evaluate the causal association between circulating levels of zinc, magnesium, and other minerals and autism spectrum disorder (ASD). METHODS: A two-sample Mendelian randomization (MR) analysis was performed using summary statistics from large-scale genome-wide association studies of European populations, including 18 382 ASD cases and 27 969 controls. Genetic data for iron, calcium, and magnesium were obtained from the UK Biobank, and data for zinc and selenium were sourced from an Australian-British cohort. A total of 351 genetic instrumental variables were selected. Causal inference was performed using inverse-variance weighting as the primary analysis method. Sensitivity analyses were performed by Cochran's Q test and MR-PRESSO global test to assess the robustness of the findings. RESULTS: No statistically significant causal effect was observed for circulating zinc, magnesium, calcium, selenium, or iron levels on ASD risk (all P>0.05). The odds ratios and 95% confidence intervals from the inverse-variance weighting analysis were 0.934 (0.869-1.003) for zinc, 1.315 (0.971-1.850) for magnesium, 1.055 (0.960-1.159) for calcium, 1.015 (0.953-1.080) for selenium, and 0.946 (0.687-1.303) for iron. Sensitivity analysis revealed significant heterogeneity in the causal association between circulating calcium and ASD (P=0.006), while the effect estimate remained stable after MR-PRESSO correction (P=0.487). The causal effect estimates for the remaining minerals demonstrated good robustness. CONCLUSIONS This study did not find significant evidence supporting a causal association between circulating zinc, magnesium, calcium, selenium, or iron levels and ASD risk, providing important clues for the etiology of ASD and precision nutritional interventions.
Humans ; Mendelian Randomization Analysis ; Autism Spectrum Disorder/genetics* ; Magnesium/blood* ; Zinc/blood* ; Minerals/blood* ; Genome-Wide Association Study ; Selenium/blood*

Senile sarcopenia is an age-related geriatric syndrome characterized by a progressive decline in muscle mass, strength, and physical function, posing a significant threat to the health and quality of life of the elderly.In recent years, ultrasound technology has emerged as an important research tool in the evaluation of sarcopenia, owing to its advantages such as safety, convenience, and radiation-free nature.However, challenges remain in achieving parameter standardization, operational consistency, and clinical implementation.This review comprehensively summarizes recent domestic and international research advances in the application of multiparametric ultrasound technology for the diagnosis and evaluation of sarcopenia in the elderly.It also analyzes the practicality, advancements, and limitations of this technology while providing insights into future development trends, aiming to provide clinical research reference basis for the precise diagnosis and intervention strategies of sarcopenia.

BACKGROUND:How to improve the expansion of cells,reduce cell loss,increase homing rate and reduce apoptosis is the main problem in the preclinical research of human umbilical cord mesenchymal stem cells.Ginsenoside Rg1 can promote the proliferation and differentiation of mesenchymal stem cells in different microenvironments in vitro or in vivo,which may be a candidate drug to improve the efficiency of human umbilical cord mesenchymal stem cell transplantation.OBJECTIVE:To investigate the effect of human umbilical cord mesenchymal stem cells co-culture combined with ginsenoside Rg1 on pentobarbital sodium induced heart failure cell model.METHODS:H9C2 cells were divided into five groups:Control group,pentobarbital sodium group,human umbilical cord mesenchymal stem cell group,ginsenoside Rg1 group,and human umbilical cord mesenchymal stem cell+ginsenoside Rg1 group.H9C2 cells in the control group were cultured in normal DMEM for 24 hours.H9C2 cells in the other groups were cultured in DMEM containing 0.8％pentobarbital sodium for 7 minutes to establish a heart failure cell model.After modeling,above models were treated with human umbilical cord mesenchymal stem cells,ginsenoside Rg1,or their combination.CCK-8 assay and EdU staining were used to detect cell proliferation.TUNEL assay was used to detect cell apoptosis.Na+-K+-ATPase and Ca2+-Mg2+-ATPase activities were detected according to kit instructions.The mRNA levels of tumor necrosis factor α,interleukin 1β,and interleukin 6 in the supernatant were determined by ELISA.The mRNA levels of tumor necrosis factor α,interleukin 1β,interleukin 6,Bax,and Bcl2 in the cells were determined by RT-qPCR.The protein levels of Bax,Bcl2,Toll-like receptor 4,p65,and p-p65 were determined by western blot assay.RESULTS AND CONCLUSION:(1)Compared with the pentobarbital sodium group,H9C2 cell viability and EdU positive rate were increased;TUNEL positive rate and Bax mRNA and protein expression were decreased,and Bcl-2 mRNA and protein expression were increased;Na+-K+-ATPase activity decreased;Ca2+-Mg2+-ATPase activity increased;tumor necrosis factor α,interleukin-1β,and interleukin-6 levels decreased in H9C2 cell supernatant,and tumor necrosis factor α,interleukin-1β,and interleukin-6 mRNA expression decreased in H9C2 cells;the expression of toll-like receptor 4 and P-P65 protein decreased with significant difference in human umbilical cord mesenchymal stem cell group,ginsenoside Rg1 group and human umbilical cord mesenchymal stem cell+ginsenoside Rg1 group(P＜0.05).(2)Compared with human umbilical cord mesenchymal stem cell group and ginsenoside Rg1 group,the above indexes in human umbilical cord mesenchymal stem cells+ginsenoside Rg1 group were further improved(P＜0.05).The results showed that human umbilical cord mesenchymal stem cells combined with ginsenoside Rg1 promoted the viability of heart failure cells induced by pentobarbital sodium and inhibited inflammation mediated by the Toll-like receptor 4/nuclear factor κB pathway.

Objective:To explore the correlation between serum hepcidin antimicrobial peptide (HAMP), secreted phosphoprotein 1 (SPP1), and regulator of G protein signaling 2 (RGS2) levels and the clinical pathological characteristics of gastric cancer patients, and their predictive value for postoperative recurrence or metastasis.Methods:A total of 92 gastric cancer patients treated at Handan First Hospital from March 2021 to March 2023 were selected as the gastric cancer group, and 92 healthy individuals who underwent physical examinations during the same period were selected as the control group. The serum levels of HAMP, SPP1 and RGS2 were compared between the two groups. According to the mean levels of HAMP, SPP1, and RGS2 in the serum of gastric cancer patients, they were divided into HAMP high level group and HAMP low level group, SPP1 high level group and SPP1 low level group, RGS2 high level group and RGS2 low level group. The clinicopathological characteristics of gastric cancer patients with different levels of HAMP, SPP1 and RGS2 were compared respectively. After a median follow-up of 18 months, gastric cancer patients were divided into a non-recurrence or metastasis group ( n=59) and a recurrence and metastasis group ( n=33) based on whether the tumor recurred or metastasized. The serum levels of HAMP, SPP1, and RGS2 were compared between the two groups of patients. The predictive value of HAMP, SPP1 and RGS2 for postoperative recurrence or metastasis in patients with gastric cancer was analyzed by using the receiver operator characteristic (ROC) curve. Results:Compared with the control group, the gastric cancer group had higher levels of serum HAMP [ (52.28±5.44) ng/ml vs. (31.22±4.18) ng/ml] and SPP1 [ (55.96±6.43) ng/ml vs. (36.99±5.25) ng/ml] ( t=29.44, P<0.001; t=21.92, P<0.001), and lower level of RGS2 [ (3.72±0.66) mg/L vs. (5.11±0.87) mg/L) ] ( t=12.21, P<0.001). There were statistically significant differences in maximum tumor diameter ( χ2=13.07, P<0.001; χ2=6.71, P=0.010; χ2=10.56, P=0.001), TNM staging ( χ2=7.42, P=0.006; χ2=6.36, P=0.012; χ2=5.39, P=0.020), lymph node metastasis ( χ2=23.41, P<0.001; χ2=6.52, P=0.011; χ2=13.11, P<0.001), and differentiation degree ( χ2=9.01, P=0.003; χ2=7.97, P=0.005; χ2=15.29, P<0.001) between the gastric cancer patients in the HAMP high level group ( n=44) and the HAMP low level group ( n=48), the SPP1 high level group ( n=43) and the SPP1 low level group ( n=49), and the RGS2 high level group ( n=50) and the RGS2 low level group ( n=42). Compared with the non-recurrence or metastatic group, the recurrence and metastatic group had higher levels of serum HAMP [ (59.26±5.66) ng/ml vs. (48.37±4.28) ng/ml] and SPP1 [ (62.85±6.36) ng/ml vs. (52.11±5.38) ng/ml] level ( t=10.40, P<0.001; t=8.60, P<0.001), and lower level of RGS2 [ (3.01±0.48) mg/L vs. (4.12±0.69) mg/L] ( t=8.19, P<0.001). ROC curve analysis showed that the area under the curve (AUC) values of serum HAMP, SPP1, and RGS2 levels alone for predicting postoperative recurrence or metastasis in gastric cancer patients were 0.777, 0.813, and 0.778, respectively. The AUC value of the combination of the three indicators for predicting postoperative recurrence or metastasis in gastric cancer patients was 0.871. The predictive efficacy of the combination of the three indicators for predicting postoperative recurrence or metastasis in gastric cancer patients was better than that alone ( Z=2.51, P=0.035; Z=2.61, P=0.032; Z=2.71, P=0.029) . Conclusions:The levels of HAMP and SPP1 in the serum of gastric cancer patients increase, while the level of RGS2 decreases, and the levels of the three are related to the maximum tumor diameter, TNM staging, lymph node metastasis and differentiation degree, and their combined detection has higher predictive value for postoperative recurrence or metastasis in gastric cancer patients.

Homeobox(HOX)genes encode a group of proteins that are highly conserved and closely related to the axial differentiation of embryos.The disorder of segmental development caused by HOX genes deficiency or abnormal expression has been observed in drosophila and mice.However,subsequent studies have found that proteins encoded by the HOX gene family are also involved in the regulation of tumor genesis and development.The roles of the whole HOX family had been reviewed by the author in the past,and through the in-depth researches,the author paid attention to the pivotal role of HOXB9 and made new progress in the study of post-translational modifications of this protein.Taking HOXB9 as a clue,this review summarizes the tumor-related signaling pathways and the modulating effects of post-translational modification of HOXB9 on tumor progression,as well as the possible research directions in the future.

Objective:To analyze the factors associated with long-term survival after radical resection of hepatitis B virus(HBV)-associated hepatocellular carcinoma(HCC),and to construct random forest and Cox regression models,to evaluate the two models.Methods:A total of 368 patients with HBV-infected HCC who underwent radical resection were selected retrospectively.These patients were categorized as having a good prognosis(n=266)or a poor prognosis(n=102)based on their survival and mortality status.Univariate and Cox regression analysis were used to identify fac-tors that predict poor prognosis in HCC patients after surgery,and Cox regression and random forest prediction models were constructed and evaluated.Results:There were significant differences in smoking history,Child-Pugh classifica-tion,cirrhosis,microvascular invasion,TNM staging,tumor capsule integrity,platelet-to-lymphocyte ratio(PLR),regular antiviral therapy,HBV-DNA load,alpha-fetoprotein(AFP),neutrophil-to-lymphocyte ratio(NLR),systemic immune in-flammatory index(SII),and albumin-to-globulin ratio(AGR)between the two groups(P<0.05);Cox regression showed that cirrhosis,microvascular invasion,regular antiviral treatment,HBV-DNA load,NLR,PLR,SII,and AGR were related factors that negatively affected the prognosis of patients with HBV-infected HCC after surgery(P<0.05),with an AUC of 0.870 for predicting prognosis;the importance ranking obtained by the random forest model was HBV-DNA load,cirrho-sis,regular antiviral therapy,microvascular invasion,NLR,PLR,AGR,and SII,with an AUC of 0.926 for predicting prog-nosis;the AUC predicted by the random forest model was greater than that predicted by the Cox regression model(Z=2.411,P=0.016).Conclusion:HBV-DNA load,cirrhosis,regular antiviral therapy,microvascular invasion,NLR,PLR,AGR,and SII are factors that affect the poor prognosis of patients with HBV-related HCC after surgery.The random for-est prediction model constructed based on these factors has high predictive value and is superior to the Cox regression prediction model.

Objective:To investigate the predictive efficacy of Delta radiomics for the patholo-gical complete remission (pCR) of pancreatic cancer after total neoadjuvant therapy (TNT).Methods:The retrospective cohort study was conducted. The clinicopathological data of 263 patients with pancreatic cancer who were admitted to Henan Provincial People′s Hospital (Zhengzhou University People's Hspital) from January 2019 to September 2024 were collected. There were 166 males and 97 females, aged (56±12)years. All patients underwent TNT. The 263 patients were randomly divided into a training set of 184 cases and a test set of 79 cases using a 7∶3 random seed count. The training set was used to construct the prediction model, and the test set was used to validate the performance of the prediction model. Observation indicators: (1) postoperative and follow-up condi-tions; (2) imaging feature selection and model construction; (3) evaluation of predictive efficacy of different radiomic models. Comparison of measurement data with normal distribution between groups was conducted using the t test. Comparison of measurement data with skewed distribution between groups was conducted using the Mann-Whitney U test. Comparison of count data between groups was conducted using the chi-square test. The Kaplan-Meier method was used to calculate the survival rate and draw survival curve. The Log-rank test was used for survival analysis. The perfor-mance of the prediction model for pCR after TNT was evaluated using the receiver operator charac-teristic (ROC) curve, precision-recall (P-R) curve and Bootstrap method, along with the calculation of area under the curve (AUC), precision rate, recall rate, F1-score. Results:(1) Postoperative and follow-up conditions. All 263 patients underwent surgery after TNT, with pathological examination revealing 124 cases of pCR (86 cases in the training set, 38 cases in the test set) and 139 cases of non-pCR (98 cases in the training set, 41 cases in the test set), respectively. All 263 patients were followed up for 6(range, 3-12) months after surgery, of which 15 cases (4 cases of pCR and 11 cases of non-pCR) were lost to follow-up or died due to non-tumor reasons within 6 months after surgery. The postoperative 6-month recurrence-free survival rate of 124 pCR patients and 139 non-pCR patients were 80% and 50%, respectively, showing a significant difference between the two groups of patients ( χ2=22.84, P<0.05). (2) Imaging feature selection and model construction. Construction of the traditional radiology model: based on the response evaluation criteria in solid tumors 1.1, the Logistic regression model was constructed using the relative shrinkage (D%) as a predictive variable. The AUC of traditional radiology model was 0.72 [95% confidence interval ( CI) as 0.63?0.81] in the training set and 0.75 (95% CI as 0.66?0.84) in the test set, respectively. Construction of the Delta radiomics model: 10 non-zero coefficient features were selected. The Delta radiomics models were constructed by using the regularized Logistic regression, random forest, gradient boosting machine, and support vector machine algorithms through using selected features as input variables. (3) Evaluation of predictive efficacy of different radiomic models. The AUC of Delta radiomics model constructed by regularized Logistic regression algorithm in the test set for predicting pCR in pancreatic cancer after TNT was 0.90, higher than that of the random forest algorithm, gradient boosting machine algorithm, support vector machine algorithm (AUC as 0.81, 0.81, 0.83), and higher than that of the traditional radiology model (AUC as 0.72). Results of Bootstrap method revealed significant differences in the predictive efficacy of Delta radiomics model constructed by regularized Logistic regression algorithm compared to the Delta radiomics model constructed by random forest algorithm, gradient boosting machine algorithm, support vector machine algorithm and the tradi-tional radiology model (95% CI as 0.03?0.16, 0.03?0.16, 0.03?0.13, 0.08?0.29, P<0.05). The regularized Logistic regression algorithm within the Delta radiomics model demonstrated the best overall performance among the above models evaluated. Conclusion:Compared to the traditional radiology model, the Delta radiomics model offers superior efficacy in predicting pCR of pancreatic cancer after TNT, in which the regularized Logistic regression algorithm demonstrates the best overall performance metrics.

Objective:To analyze the factors associated with long-term survival after radical resection of hepatitis B virus(HBV)-associated hepatocellular carcinoma(HCC),and to construct random forest and Cox regression models,to evaluate the two models.Methods:A total of 368 patients with HBV-infected HCC who underwent radical resection were selected retrospectively.These patients were categorized as having a good prognosis(n=266)or a poor prognosis(n=102)based on their survival and mortality status.Univariate and Cox regression analysis were used to identify fac-tors that predict poor prognosis in HCC patients after surgery,and Cox regression and random forest prediction models were constructed and evaluated.Results:There were significant differences in smoking history,Child-Pugh classifica-tion,cirrhosis,microvascular invasion,TNM staging,tumor capsule integrity,platelet-to-lymphocyte ratio(PLR),regular antiviral therapy,HBV-DNA load,alpha-fetoprotein(AFP),neutrophil-to-lymphocyte ratio(NLR),systemic immune in-flammatory index(SII),and albumin-to-globulin ratio(AGR)between the two groups(P<0.05);Cox regression showed that cirrhosis,microvascular invasion,regular antiviral treatment,HBV-DNA load,NLR,PLR,SII,and AGR were related factors that negatively affected the prognosis of patients with HBV-infected HCC after surgery(P<0.05),with an AUC of 0.870 for predicting prognosis;the importance ranking obtained by the random forest model was HBV-DNA load,cirrho-sis,regular antiviral therapy,microvascular invasion,NLR,PLR,AGR,and SII,with an AUC of 0.926 for predicting prog-nosis;the AUC predicted by the random forest model was greater than that predicted by the Cox regression model(Z=2.411,P=0.016).Conclusion:HBV-DNA load,cirrhosis,regular antiviral therapy,microvascular invasion,NLR,PLR,AGR,and SII are factors that affect the poor prognosis of patients with HBV-related HCC after surgery.The random for-est prediction model constructed based on these factors has high predictive value and is superior to the Cox regression prediction model.

BACKGROUND:How to improve the expansion of cells,reduce cell loss,increase homing rate and reduce apoptosis is the main problem in the preclinical research of human umbilical cord mesenchymal stem cells.Ginsenoside Rg1 can promote the proliferation and differentiation of mesenchymal stem cells in different microenvironments in vitro or in vivo,which may be a candidate drug to improve the efficiency of human umbilical cord mesenchymal stem cell transplantation.OBJECTIVE:To investigate the effect of human umbilical cord mesenchymal stem cells co-culture combined with ginsenoside Rg1 on pentobarbital sodium induced heart failure cell model.METHODS:H9C2 cells were divided into five groups:Control group,pentobarbital sodium group,human umbilical cord mesenchymal stem cell group,ginsenoside Rg1 group,and human umbilical cord mesenchymal stem cell+ginsenoside Rg1 group.H9C2 cells in the control group were cultured in normal DMEM for 24 hours.H9C2 cells in the other groups were cultured in DMEM containing 0.8％pentobarbital sodium for 7 minutes to establish a heart failure cell model.After modeling,above models were treated with human umbilical cord mesenchymal stem cells,ginsenoside Rg1,or their combination.CCK-8 assay and EdU staining were used to detect cell proliferation.TUNEL assay was used to detect cell apoptosis.Na+-K+-ATPase and Ca2+-Mg2+-ATPase activities were detected according to kit instructions.The mRNA levels of tumor necrosis factor α,interleukin 1β,and interleukin 6 in the supernatant were determined by ELISA.The mRNA levels of tumor necrosis factor α,interleukin 1β,interleukin 6,Bax,and Bcl2 in the cells were determined by RT-qPCR.The protein levels of Bax,Bcl2,Toll-like receptor 4,p65,and p-p65 were determined by western blot assay.RESULTS AND CONCLUSION:(1)Compared with the pentobarbital sodium group,H9C2 cell viability and EdU positive rate were increased;TUNEL positive rate and Bax mRNA and protein expression were decreased,and Bcl-2 mRNA and protein expression were increased;Na+-K+-ATPase activity decreased;Ca2+-Mg2+-ATPase activity increased;tumor necrosis factor α,interleukin-1β,and interleukin-6 levels decreased in H9C2 cell supernatant,and tumor necrosis factor α,interleukin-1β,and interleukin-6 mRNA expression decreased in H9C2 cells;the expression of toll-like receptor 4 and P-P65 protein decreased with significant difference in human umbilical cord mesenchymal stem cell group,ginsenoside Rg1 group and human umbilical cord mesenchymal stem cell+ginsenoside Rg1 group(P＜0.05).(2)Compared with human umbilical cord mesenchymal stem cell group and ginsenoside Rg1 group,the above indexes in human umbilical cord mesenchymal stem cells+ginsenoside Rg1 group were further improved(P＜0.05).The results showed that human umbilical cord mesenchymal stem cells combined with ginsenoside Rg1 promoted the viability of heart failure cells induced by pentobarbital sodium and inhibited inflammation mediated by the Toll-like receptor 4/nuclear factor κB pathway.