A combined radiation-wound injury refers to a radiation injury combined with a traumatic wound, with the characteristics of repeated ulceration and a long and difficult healing process, which is a focus in the field of research on difficult-to-heal wounds. To research combined radiation-wound injuries, the establishment of animal models is a key part, and appropriate animal models are a guarantee of reliable experimental results. This review summarizes the current research progress on various animal models of combined radiation-wound injuries in terms of radiation types, animal species, and injury types and location, aiming to provide a scientific basis for establishing standardized animal models, studying injury mechanisms, and evaluating prevention and treatment efficacy for combined radiation-wound injuries.

Objective To explore the predictive value of peripheral blood inflammatory indicators such as neutrophil-to-lymphocyte ratio(NLR),monocyte-to-lymphocyte ratio(MLR)and platelet-to-lymphocyte ratio(PLR)on the prognosis of patients with primary diagnosis of multiple myeloma(MM).Methods Using a retrospective method,77 patients with first diagnosis of MM admitted to the Department of Hematology of Baise People's Hospital and 77 healthy medical checkups with peripheral blood NLR,MLR and PLR were collected and compared the differences.Then the patients with primary diagnosis of MM were categorized into high NLR group,low NLR group,high MLR group,low MLR group,high PLR group,low PLR group using the mean value as the critical value,and the prognosis of the patients in each group as well as the relationship with overall survival time(OS)were compared.Results The NLR,MLR,and PLR of patients with initial diagnosis of MM were significantly higher than those of healthy controls,and the differences were statistically significant(all P<0.05).Serum β2-microglobulin(β2-MG)levels were higher in patients with high NLR and high MLR than in the low NLR and low MLR groups,and the difference was statistically significant(P<0.05).Patients in the high NLR,high MLR and high PLR groups had less OS and poorer prognosis than those in the low NLR,low MLR and low PLR groups,and the differences were statistically significant(all P<0.05).Univariate Cox regression analysis showed that international staging system(ISS)stage,creatinine(Cr),β2-MG,albumin(ALB),NLR,MLR and PLR were associated with overall survival(P<0.05);multivariate Cox proportional risk regression analysis showed that NLR,MLR,and PLR were not independent risk factors affecting the prognosis of patients with primary diagnosis of MM,and the difference was not statistically significant(P>0.05).According to the number of inflammatory indexes(high NLR,high MLR,high PLR)that affected the prognosis,the patients were divided into 0 or 1 risk factor group,2 risk factor groups and 3 risk factor groups,and the comparison of OS between the three groups was statistically significant(P=0.001).The greater the number of concomitant risk factors for prognosis,the shorter the OS.Conclusion Elevated inflammatory indicators(NLR,MLR,PLR)in patients with primary diagnosis of MM were associated with less OS and poorer prognosis of the patients,and they may be used as indicators to assess the condition and prognosis of patients with primary diagnosis of MM.

Objective To explore the mechanism underlying the anti-hemorrhoid effects of Qingji Liangxue mixture(QLM).Methods Models of acute hemorrhoid in rats were established using a croton oil preparation(COP)and glacial acetic acid.A total of 80 SD female rats were randomly divided into two major groups:the COP group and the glacial acetic acid group,each consisting of 40 rats.In the COP group,rats were further randomly assigned to the following subgroups:control group 1(group CA),model group 1(group CB),low-dose QLM group 1-1(group CC),high-dose QLM group 1-2(group CD),and diosmin group 1(group CE),with eight rats in each subgroup.In the glacial acetic acid group,rats were randomly divided into the following subgroups:control group 2(group GA),model group 2(group GB),low-dose QLM group 2-1(group GC),high-dose QLM group 2-2(group GD),and diosmin group 2(group GE),with eight rats in each subgroup.Except for the control groups,all other subgroups were treated with COP or glacial acetic acid then treated with various drugs for 7 days.HE staining was used to observe anorectal histomorphology induced by COP and glacial acetic acid.ELIS As were used to measure serum levels of IL-6 and TNF-α induced by COP.Additionally,the area of perianal ulcers induced by glacial acetic acid was recorded.Twenty-four C57 mice were randomly divided into a control group(group A),low-dose QLM group(group B),high-dose QLM group(group C),and adrenal chromazone tablet group(group D).Results QLM significantly improved the pathological injury of animal models with similar hemorrhoids,reduced the score of pathological changes induced by COP(P＜0.05),reduced the serum levels of IL-6 and TNF-α(P＜0.05),reduced the area of perianal ulcers induced by glacial acetic acid(P＜0.05),and shortened the time of coagulation and bleeding(P＜0.05).Conclusions QLM has a good anti-hemorrhoid activity,which may be achieved by anti-inflammatory effects,hemostasis,and reducing tissue damage.

Objective:To investigate the risk factors and cumulative risk of myopia in children and adolescents, providing a basis for identifying cumulative risk factors in preventing and controlling myopia.Methods:Baseline data from the mental and physical health cohort of children and adolescents established in Inner Mongolia Autonomous Region were used. A stratified random cluster sampling method was adopted to select 138 974 students from fourth to twelfth grade as participants. Distance visual exams, refractive assessments, and questionnaires were conducted on the included students. Logistic regression analysis was used to evaluate each risk factor's impact on myopia's prevalence. The number of risk factors was summed to form a cumulative risk score, and logistic regression analysis was conducted to examine the association between the cumulative risk score and the prevalence of myopia. Additionally, the association between the cumulative risk score of myopic students and their degree of refractivity was analyzed using a generalized estimating equation.Results:The study found a high prevalence of myopia among children and adolescents at baseline (70.2%). Girls exhibited a higher prevalence (74.8%) than boys (65.6%), urban areas (74.3%) surpassed suburban ones (68.6%), and the incidence was greater in high schools (80.3%) compared to middle schools (75.3%), which, in turn, was higher than in elementary schools (57.7%) (all P<0.05). Analysis of risk factors revealed that children and adolescents experiencing improper reading and writing distances ( OR=1.10, 95% CI: 1.07-1.13), excessive homework ( OR=1.09, 95% CI: 1.06-1.12), insufficient sleep ( OR=1.10, 95% CI: 1.07-1.13), having myopic father ( OR=1.98, 95% CI: 1.91-2.05), having myopic mother ( OR=2.04, 95% CI: 1.97-2.10), or using classroom chairs not matched to their height faced ( OR=1.04, 95% CI: 1.01-1.07) increased myopia risks. Additionally, the prevalence and significant odds ratio of myopia increased with the increase in cumulative risk score, with every additional unit of cumulative risk score increasing the right eye's refractive error by -0.10 D. Conclusion:The presence of multiple factors and their comprehensive score increases the prevalence of myopia in children and adolescents.

This article mainly analyzed the clinical application of Zhizichi Decoction should focus on the following four aspects:Firstly,based on the concept of prescription,the main application of formula of Zhizichi Decoction is chest tightness and stuffiness,often accompanied by burning pain,restlessness,and insomnia;the second is to follow the traditional dosage method,using 48-55 g of Sojae Preparatum Semen for Zhizichi Decoction.If patients are particularly restless,they can reuse up to 90 g of Sojae Preparatum Semen;the third is to analyze the syndromes and clinical applications of Zhizichi Decoction;fourthly,based on clinical experience,the main application of formula of the commonly used overlapping classic formulas in Zhizichi Decoction.The changes in clinical symptoms are complex.In order to achieve comprehensive therapeutic effects,the concept of similar formulas and the addition and subtraction of ancient formulas can be followed.Classic formulas can be used in combination to expand the scope of clinical treatment of Zhizichi Decoction.

Spinal cord injury (SCI) is a serious nervous system disease that usually leads to the impairment of the motor, sensory, and autonomic nervous functions of the spinal cord, and it places a heavy burden on families and healthcare systems every year. Due to the complex pathophysiological mechanism of SCI and the poor ability of neurons to regenerate, the current treatment scheme has very limited effects on the recovery of spinal cord function. In addition, due to their unique advantages, exosomes can be used as carriers for cargo transport. In recent years, some studies have confirmed that treatment with mesenchymal stem cells (MSCs) can promote the recovery of SCI nerve function. The therapeutic effect of MSCs is mainly related to exosomes secreted by MSCs, and exosomes may have great potential in SCI therapy. In this review, we summarized the repair mechanism of mesenchymal stem cells-derived exosomes (MSCs-Exos) in SCI treatment and discussed the microRNAs related to SCI treatment based on MSCs-Exos and their mechanism of action, which is helpful to further understand the role of exosomes in SCI.

Objective To evaluate the effect of different techniques of hepatic artery reconstruction on postoperative hepatic artery complications and clinical prognosis in liver transplantation. Methods Clinical data of 140 liver transplant recipients were retrospectively analyzed. All recipients were divided into the conventional hepatic artery reconstruction group (n=123) and special hepatic artery reconstruction group (n=17) according to hepatic artery reconstruction methods. Intraoperative and postoperative clinical indexes, the incidence of postoperative hepatic artery complications and survival rate were compared between two groups. Results The alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels at postoperative 1 d, total bilirubin (TB) at postoperative 7 d and prothrombin time international normalized ratio (PT-INR) at postoperative 30 d in special hepatic artery reconstruction group were higher than those in conventional hepatic artery reconstruction group, and the differences were statistically significant (all P < 0.05). There were no significant differences in the operation time, anhepatic phase, intraoperative blood loss, intraoperative transfusion volume of red blood cells, cold or warm ischemia time, the length of intensive care unit (ICU) stay, the length of hospital stay and postoperative blood flow of liver allograft between two groups (all P > 0.05). In the conventional hepatic artery reconstruction group, 5 recipients developed hepatic artery complications, whereas no hepatic artery complications occurred in the special hepatic artery reconstruction group, with no significant difference between two groups (P > 0.05). In the special hepatic artery reconstruction group, the 1-, 3- and 5-year cumulative survival rates were equally 82.4%, compared with 85.0%, 78.9% and 75.6% in the conventional hepatic artery reconstruction group, respectively. There was no significant difference between two groups (all P > 0.05). Conclusions When hepatic artery variations and (or) lesions are detected in donors and recipients, use of special hepatic artery reconstruction may effectively restore the hepatic arterial blood flow of liver allograft after liver transplantation, and will not affect the incidence of hepatic artery complications and survival rate of the recipients following liver transplantation.

Rejection and adverse reactions caused by long-term use of immunosuppressants severely affect the survival rate and quality of life of organ transplant recipients. Immune tolerance induction plays a key role in improving the survival rate and quality of life of organ transplant recipients. In recent years, tremendous progress has been achieved in adoptive re-transfusion of regulatory cells. In this article, research progress in regulatory T cell (Treg), myeloid-derived suppressor cell (MDSC) and regulatory B cell (Breg) in animal experiment and clinical application was reviewed, and the main clinical problems of adoptive re-transfusion of regulatory cells, the application of chimeric antigen receptor Treg and the concept of cell therapy in immune evaluation were summarized, aiming to deepen the understanding of regulatory cell therapy, promote the application of regulatory cells in immune tolerance of organ transplantation, and improve clinical efficacy of organ transplantation and the quality of life of recipients.

Objective: To investigate the prevalence of Internet addiction and depression of students, and to analyze the co-occurrence and trend, so as to provide a theoretical basis for prevention and controlling measures of Internet addiction and depression. Methods: A total of 6 317,7 152,81 808,71 180 and 89 932 students aged 10 to 24 years from 12 leagues (103 banners) in Inner Mongolia Autonomous Region were selected by stratified random cluster sampling in September each year from 2017 to 2021. The Internet Addiction Scale and the Central for Epidemiologic Studies Depression Scale(CES-D) was used to measure Internet addiction and depression. And the annual inspection rate, group difference and annual change trend in students were calculated. Multivariate linear regression and restricted cubic spline analysis were used to estimate the linear and non linear associations between Internet addiction and depression in students. Results: The Internet addiction proportion in students gradually decreased from 4.1% in 2017 to 2.1% in 2020, but increased to 3.9% in 2021. And the depressive symptoms proportion increased from 20.9% in 2017 to 28.0% in 2020 and 27.0% in 2021. The detection rate of Internet addiction and depression comorbidities remained at 1.8% to 2.5 %. The Internet addiction proportion in boys was higher than that in girls( χ 2=42.82， P <0.05). The depressive symptoms prevalence in girls was higher than that in boys( χ 2= 553.90， P <0.05). Taking reversal in prevalence of Internet addiction in urban and rural areas was observed in 2019. The detection rates of depressive symptoms and comorbidity were higher in urban areas than these in suburban counties on the whole, and the difference showed a trend of decreasing or even equalizing year by year. Internet addiction was positively correlated with depressive symptoms score ( B=1.67, 95%CI =1.64-1.71), the proportion of depressive symptoms ( OR=1.39, 95%CI =1.38-1.41) and the proportion of major depressive symptoms ( OR=1.35, 95%CI =1.33-1.36) among students in 2021 ( P <0.05). An N-shaped curve was found in the significant nonlinear associations between internet addiction and depression across sex, region and school stage. Conclusion Internet addiction and depression in students show significant linear and non-linear associations, which are consistent in different sexes, regions and school stages. Therefore, relevant measures should be made and implemented in each region, especially in suburb areas, so as to prevent the increasingly development of adolescents and children s Internet addiction and depression.

Objective: To explore the epidemiological trend of overweight and obesity, elevated blood pressure and their comorbidities in children and adolescents from Inner Mongolia Autonomous Region during 2016-2021, and to analyze its association with lifestyle, so as to provide reference for formulating prevention and control strategies of regional common comorbidities in schools. Methods: A total of 8 908, 8 222, 9 448, 127 068, 100 778, and 138 540 students aged 10-18 years in Inner Mongolia were selected by stratified random cluster sampling in September each year from 2016 to 2021. Physical examination and questionnaire survey were conducted on the included students. The prevalence trends of overweight，obesity, elevated blood pressure and their co-occurrence were analyzed. Logistic regression was used to compare the prevalence of elevated blood pressure in different body mass index (BMI) groups. After excluding individuals without lifestyle information in 2021, Logistic regression analysis was used on 136 374 subjects to analyze the association between overweight，obesity, elevated blood pressure and their co-occurrence and lifestyle factors. Results: During 2016 to 2021, the prevalence of comorbidity of overweight, obesity with elevated blood pressure among students in Inner Mongolia Autonomous Region were 5.04%，5.14%，4.99%，7.51%，7.60% and 9.45%， respectively . The prevalence of overweight and obesity was 26.94%, 28.07%, 29.62%, 34.19%, 36.71% and 37.53%, respectively. The prevalence of elevated blood pressure were 16.05%, 11.54%, 13.12%, 14.85%, 14.12% and 18.40%, respectively. Except for 2016, the risk of elevated blood pressure in overweight and obese people was higher than that in normal BMI group in other years, and there was a positive correlation between overweight and obesity and elevated blood pressure after gender and urban and rural areas ( P < 0.05 ). In 2021, the detection rate of comorbidity of overweight and obesity with elevated blood pressure among children and adolescents in urban areas was higher than that in suburban counties, and the reporting rate of healthy lifestyle was lower than that in suburban counties ( P <0.05).Skipping breakfast ( OR =1.11，95% CI =1.07-1.16) and non daily moderate and high intensity physical activity( OR =1.27，95% CI =1.20-1.34) were positively correlated with the co-occurrence of overweight，obesity and elevated blood pressure among children and adolescents in Inner Mongolia Autonomous Region. Non daily moderate and high intensity physical activity ≥60 min was positively correlated with elevated blood pressure ( OR =1.11，95% CI =1.07-1.16), and insufficient sleep was positively correlated with overweight，obesity ( OR =1.04, 95% CI =1.01-1.06)（ P ＜0.05）. Conclusion The prevalence of overweight，obesity, elevated blood pressure and their co-occurrence among children and adolescents in Inner Mongolia Autonomous Region is relatively high. Overweight/obesity is an important risk factor for elevated blood pressure, and unhealthy lifestyles are risk factors for co-occurrence of overweight，obesity and elevated blood pressure. Region specific lifestyle interventions are indispensable for the prevention and control of regional common comorbidities. Urban areas may be a key focus for lifestyle interventions.