OBJECTIVE: To observe the clinical efficacy of 3D printing spinal external fixator combined with McKenzie therapy for patients with lumbar dics herniation (LDH). METHODS: Sixty patients with LDH between January 2022 and January 2023 were enrolled. Among them, 30 patients were given McKinsey training. According to different treatment methods, all patients were divided into McKenzie group and McKenzie + 3D printing group, 30 patients in each group. The McKenzie group provided McKenzie therapy. The McKenzie + 3D printing group were treated with 3D printing spinal external fixation brace on the basis of McKenzie therapy. Patients in both groups were between 25 and 60 years of age and had their first illness. In the McKenzie group, there were 19 males and 11 females, with an average age of (48.57±5.86) years old, and the disease duration was (7.03 ±2.39) months. The McKenzie + 3D printing group, there were 21 males and 9 females, with an average age of (48.80±5.92) years old, and the disease duration was(7.30±2.56) months. Pain was evaluated using the visual analogue scale (VAS), and lumbar spine function was assessed using the Oswestry disability index (ODI) and the Japanese Orthopaedic Association (JOA) score. VAS, ODI and JOA scores were compared between two groups before treatment and at 1, 3, 6, 9 and 12 months after treatment. RESULTS: All patients were followed up for 12 months. The VAS for the McKenzie combined with 3D printing group before treatment and at 1, 3, 6, 9, and 12 months post-treatment were(6.533±0.860), (5.133±1.008), (3.933±0.868), (2.900±0.759), (2.067±0.640), (1.433±0.504), respectively. In the McKenzie group, the corresponding scores were (6.467±0.860), (5.067±1.048), (4.600±0.968), (3.533±1.008), (2.567±0.728), (1.967±0.809), respectively. The ODI of the McKenzie group before treatment and at 1, 3, 6, 9, and 12 months post-treatment were (41.033±6.810)%, (37.933±6.209)%, (35.467±6.962)%, (27.567±10.081)%, (20.800±7.531)%, (13.533±5.158)%, respectively. For the McKenzie combined with 3D printing group, the corresponding ODI were(38.033±5.605)%, (33.000±6.192)%, (28.767±7.045)%, (22.200±5.517)%, (17.700±4.836)%, (11.900±2.771)%, respectively. The JOA scores of the McKenzie combined with 3D printing group before treatment and at 1, 3, 6, 9, and 12 months post-treatment were(8.900±2.074), (13.133±2.330), (15.700±3.583), (20.400±3.480), (22.267±3.084), (24.833±2.640), respectively. In the McKenzie group, the corresponding scores were(9.200±2.091), (12.267±2.406), (15.333±3.198), (18.467±2.240), (20.133±2.751), (22.467±2.849), respectively. Before the initiation of treatment, no statistically significant differences were observed in the VAS, ODI, and JOA scores between two groups (P>0.05). At 3, 6, 9, and 12 months post-treatment, the VAS in the McKenzie combined with 3D printing group was significantly lower than that in the McKenzie group, and the difference was statistically significant (P<0.05). The comparison of ODI between two groups at 1, 3, 6, 9, and 12 months post-treatment revealed statistically significant differences (P<0.05). At 6, 9, and 12 months post-treatment, the JOA score in the McKenzie combined with 3D printing group was significantly higher than that in the McKenzie-only group, and the difference was statistically significant (P<0.05). CONCLUSION The combination of 3D printed functional spinal external fixation brace with McKenzie therapy can significantly improve and maintain lumbar function in patients with LDH.
Humans ; Male ; Female ; Middle Aged ; Printing, Three-Dimensional ; Intervertebral Disc Displacement/surgery* ; External Fixators ; Lumbar Vertebrae/surgery* ; Adult ; Braces ; Treatment Outcome

OBJECTIVE To investigate the effects of Tripterygium wilfordii multiglycoside （TWM） on renal injury in diabetic nephropathy （DN） rats through tumor protein p53/microRNA-214 （miR-214）/UNC-51-like kinase 1 （ULK1） axis. METHODS Male SD rats were randomly divided into normal group （n＝6） and modeling group （n＝28）； the modeling group was fed with high fat and high glucose plus intraperitoneal injection of streptozotocin to establish DN model. The modeled rats were randomly divided into model group， valsartan group [8.33 mg/（kg·d）] and TWM group[6.25 mg/（kg·d）]， with 8 rats in each group. Rats in each group were gavaged with the corresponding medication or normal saline， once a day， for 6 consecutive weeks. After the last medication， liver and renal function indexes [24 h urinary total protein （24 h-UTP）， blood urea nitrogen （BUN）， serum creatinine （SCr）， albumin （ALB）， alanine transaminase （ALT）]， blood lipid indexes （triglycerides， total cholesterol） and blood glucose index （fasting blood glucose） in urine/blood sample of rats were detected in each group. Renal pathologic change was observed， protein and mRNA expressions of p53， ULK1， Beclin-1 and microtubule-associated protein 1 light chain 3 （LC3）， and expression of miR-214 in renal tissue were also determined. RESULTS Compared with the normal group， the renal tubular epithelium of rats in the model group showed obvious edema， cell swelling， accompanied by lymphocyte infiltration； the levels of 24h-UTP， BUN， SCr， ALT and glycolipid indexes， the expressions of p53 protein and mRNA， as well as the expression of miR-214 in rats in the model group and administration groups were significantly increased or up-regulated， while ALB level， LC3-Ⅱ/LC3-Ⅰ， the expressions of LC3 mRNA， the expressions of ULK1， Beclin-1 protein and mRNA were significantly decreased or down-regulated （P＜0.01）. Compared with the model group， the histopathological damage of the kidney in rats was improved in administration groups； the levels of 24 h-UTP， BUN， SCr， ALT and glycolipid indexes， the expressions of p53 protein and mRNA， as well as the expression of miR-214 were all significantly decreased or down-regulated， while ALB level， LC3-Ⅱ/LC3-Ⅰ， the expressions of LC3 mRNA， the expressions of ULK1 and Beclin-1 protein and mRNA were significantly increased or up-regulated （P＜0.01）. CONCLUSIONS TG can alleviate renal damage in DN rats， and improve their liver and renal function， as well as glucose and lipid levels. These effects may be related to the regulation of the p53/miR-214/ULK1 axis and the restoration of cellular autophagy.

Objective To analyze the factors affecting the prevalence of hyperuricemia(HUA)in an island troop.Methods A total of 1 113 soldiers stationed on an island from December 2021 to December 2022 were selected as research objects by cluster sampling.Their lifestyle and health information were collected.Physical examination and laboratory detection were conducted.Multivariate logistic regression was used to analyze the influencing factors of HUA.Results The prevalence rate of HUA was 21.02%(234/1 113).There were significant differences in the body mass index(BMI),waist-to-hip ratio,triglyceride,alanine aminotransferase,and creatinine between the soldiers with hyperuricemia and the soldiers with normal blood uric acid(P<0.05).Multivariate logistic regression analysis showed that BMI≥24(OR=1.49,95%CI:1.09-2.05),abnormal liver function(OR=2.26,95%CI:1.31-3.92),and dyslipidemia(OR=1.46,95%CI:1.01-2.12)were positively correlated with hyperuricemia;age>30 years old(OR=0.59,95%CI:0.37-0.93)and exercise time>1 h per week(OR=0.46,95%CI:0.22-0.97)were negatively correlated with HUA.Conclusion The prevalence rate of hyperuricemia is at a high level in an island troop.BMI≥24,age≤30 years old,exercise time≤1 h per week,abnormal liver function,and dyslipidemia are the risk factors for HUA.Prevention and control measures should be taken as early as possible for the soldiers with these risk factors.

Objective To investigate the effect of knockdown PRTN3 on polarization phenotype and anti-tumor function of macrophages in breast cancer.Methods A mouse monocyte/macrophage cell line(RAW264.7)with knockdown of PRTN3 was constructed.The mRNA and protein levels of PRTN3 were detected by RT-qPCR and flow cytometry.Macrophages were co-cultured with tumor cells,and the polarization phenotypes of macrophages were detected by flow cytometry,and the mRNA levels of polarization and cytokines related genes were detected by RT-qPCR.The tumor phagocytosis and tumor killing ability of macrophages were determined by in vitro phagocytosis assay and tumor killing assay.The effect of macrophages with PRTN3 knockdown on tumor progression and metasta-sis was compared in an orthotopic transplantation model of mouse breast cancer.Results The mRNA and protein levels of PRTN3 in the RAW264.7 cell line with stable knockdown of PRTN3 were significantly decreased(P＜0.01).Knockdown of PRTN3 in RAW264.7 cells upregulated the expression of M1 phenotype-related genes(CD80,CD86,iNOS,IL-1β,IL-6 and TNF-α)(P＜0.05).After macrophages co-culture with tumor cells,macrophages with knockdown of PRTN3 upregulated the expression of M1 phenotype-related genes(CD80,CD86,iNOS,IL-1β,IL-6 and TNF-α)(P＜0.01).Knockdown of PRTN3 enhanced the phagocyto-sis(P＜0.05)and tumor killing ability(P＜0.05)of macrophages in vitro.Adoptive transfusion of PRTN3-knockdown macrophages into tumor-bearing mice inhibited the growth of in situ breast cancer and reduced lung metastasis(P＜0.05).Conclusions PRTN3 regulates phenotypic polarization of macrophages,and knockdown of PRTN3 enhances the anti-tumor function of macrophages.

Objective:To analyze the epidemiological characteristics of cases involving monkey injuries at medical institutions surrounding Qianlingshan Park in Guiyang City, and to provide a reference basis for preventive measures to reduce monkey injuries and standardized post-exposure treatment.Methods:A retrospective cross-sectional study was conducted, collecting 1 900 cases of monkey-induced injuries in Qianlingshan Park treated at the outpatient clinic of Guizhou Provincial Center for Disease Control and Prevention and the Department of Surgery at Qianling Hospital, Guiyang City, from 2021 to 2024. Statistical analysis was performed using Pearson′s chi-square test.Results:Total of 1 900 cases of monkey-related injuries in Qianlingshan Park were collected from 2021 to 2024. The exposure time distribution exhibited significant seasonality, with 48.58% of cases occurring during July and August, totaling 923 cases, indicating a peak in the summer. There were 774 male patients and 1 126 female patients, with a ratio of 1∶1.45.and significant differences were observed between different age groups and genders (χ2=195.00, P<0.001), with the highest number of cases occurring in the 0-9 and 20-29 age groups, accounting for 22.05%(419 cases) and 21.79%(414 cases), respectively. The upper limbs were the most common injury site, accounting for 50.84% of the total cases(966 cases in total), with significant differences between gender and injury location (χ2=22.00, P<0.001), Among females, the proportion of injuries to the upper and lower limbs (30.11% and 16.47%, respectively) was higher than that among males (20.74% and 8.63%, respectively). The majority of injuries were classified as Grade Ⅲ, making up 57.38% of cases(1 069 cases in total). Self-treatment after exposure was the most common approach(60.44%), with significant differences observed between wound severity and treatment method (χ2=6.90, P=0.032), Patients with Grade Ⅱ and Grade Ⅲ wounds were more likely to choose self-management (26.84% and 33.23%, respectively) than outpatient management (15.14% and 24.15%). Approximately 98.05% (1 863 cases) of monkey-injured patients had received rabies vaccinations. Conclusions:This study analyzes monkey-related injuries in Qianlingshan Park from 2021 to 2024, clarifying the temporal distribution of injuries, demographic characteristics, injury sites, and treatment methods. The findings provide references for optimizing human-monkey conflict management and the prevention and control of zoonotic diseases in urban ecological parks.

Objective:To explore the relationship between monocyte-lymphocyte ratio(MLR),modified Glasgow prognostic score(mGPS)and the prognosis of patients with advanced gastric cancer after radical gastrectomy.Methods:A retrospective analysis was conducted on the data of 106 patients with advanced gastric cancer who underwent radical gastrectomy in our hospital from April 2018 to April 2021,the patients were followed up for 3 years after the operation.MLR and mGPS scores of patients with different clinical characteristics were compared.The Kaplan-Meier method was used to analyze the survival differences of patients in different MLR and mGPS groups,and the survival curves were plotted.The Cox regression model was used to analyze variables such as clinical characteristics,laboratory indicators,MLR and mGPS scores,and to screen out the independent factors affecting the prognosis of patients.The receiver operating characteristic(ROC)curve was constructed to evaluate the efficacy of MLR,mGPS scores and their combination in predicting poor prognosis efficiency of patients,and the area under the curve(AUC),sensitivity and specificity were calculated.Results:MLR and mGPS scores were correlated with tumor TNM stage,degree of differentiation,tumor diameter,lymph node metastasis and postoperative chemotherapy(P＜0.05).The 3-year survival rates of the MLR ≥0.3 group and mGPS ≥ 1 group were 45.20％and 50.00％respectively,which were much lower than those in the low MLR group and mGPS group(78.40％and 82.40％,P＜0.05).The survival rate in the high-risk group(MLR ≥0.3 and mGPS ≥ 1)was 29.41％,significantly lower than those in the medium and low-risk groups(P＜0.05).Cox multivariate analysis showed that high clinical stage,lymph node metastasis,high degree of differentiation,high MLR and high mGPS scores were independent risk factors affecting the prognosis of patients.ROC curve showed that the AUC of MLR and mGPS scores alone in predicting poor prognosis of patients was 0.756 and 0.842,respectively,the AUC of combination detection the two was 0.909,the predictive efficacy of the combination detection was significantly better than that of the single detection.Conclusion:Elevated MLR and mGPS scores can be used as independent prognostic indicators after advanced gastric cancer,the combination in predicting is helpful to provide a more accurate basis for clinical prognosis assessment.

Objective:To explore the relationship between monocyte-lymphocyte ratio(MLR),modified Glasgow prognostic score(mGPS)and the prognosis of patients with advanced gastric cancer after radical gastrectomy.Methods:A retrospective analysis was conducted on the data of 106 patients with advanced gastric cancer who underwent radical gastrectomy in our hospital from April 2018 to April 2021,the patients were followed up for 3 years after the operation.MLR and mGPS scores of patients with different clinical characteristics were compared.The Kaplan-Meier method was used to analyze the survival differences of patients in different MLR and mGPS groups,and the survival curves were plotted.The Cox regression model was used to analyze variables such as clinical characteristics,laboratory indicators,MLR and mGPS scores,and to screen out the independent factors affecting the prognosis of patients.The receiver operating characteristic(ROC)curve was constructed to evaluate the efficacy of MLR,mGPS scores and their combination in predicting poor prognosis efficiency of patients,and the area under the curve(AUC),sensitivity and specificity were calculated.Results:MLR and mGPS scores were correlated with tumor TNM stage,degree of differentiation,tumor diameter,lymph node metastasis and postoperative chemotherapy(P＜0.05).The 3-year survival rates of the MLR ≥0.3 group and mGPS ≥ 1 group were 45.20％and 50.00％respectively,which were much lower than those in the low MLR group and mGPS group(78.40％and 82.40％,P＜0.05).The survival rate in the high-risk group(MLR ≥0.3 and mGPS ≥ 1)was 29.41％,significantly lower than those in the medium and low-risk groups(P＜0.05).Cox multivariate analysis showed that high clinical stage,lymph node metastasis,high degree of differentiation,high MLR and high mGPS scores were independent risk factors affecting the prognosis of patients.ROC curve showed that the AUC of MLR and mGPS scores alone in predicting poor prognosis of patients was 0.756 and 0.842,respectively,the AUC of combination detection the two was 0.909,the predictive efficacy of the combination detection was significantly better than that of the single detection.Conclusion:Elevated MLR and mGPS scores can be used as independent prognostic indicators after advanced gastric cancer,the combination in predicting is helpful to provide a more accurate basis for clinical prognosis assessment.