ObjectiveTo investigate the effects of Yishen Juanbi pills （YSJB）-containing bone marrow fluid on the migration and differentiation phenotypes of CD4⁺T lymphocytes based on the stromal cell-derived factor-1/chemokine receptor 4 （SDF-1/CXCR4） signaling pathway. MethodsPrimary CD4⁺T lymphocytes were isolated from mice using magnetic bead separation and identified for purity by flow cytometry. A CD4⁺T lymphocyte culture system was then established to observe the effects of SDF-1 on CD4⁺T-cell migration and differentiation. On this basis， the experimental groups included the Sham group， the ovariectomy （OVX） group， the Sham+collagen-induced arthritis （CIA） group， the OVX+CIA group， the Sham+CIA+YSJB group （2.16 g·kg^-1）， the OVX+CIA+YSJB group （2.16 g·kg^-1）， and the OVX+CIA+methotrexate （MTX） group （1.5 mg·kg^-1）. Bone marrow fluid from each group was prepared according to previous methods and added to the CD4⁺ T-cell culture system at 5% （v/v）. Transwell assays were used to examine CD4⁺T-cell migration in each group. Real-time PCR was used to measure the mRNA expression levels of interleukin （IL）-17， tumor necrosis factor-α （TNF-α）， retinoic-acid-related orphan receptor γt （RORγt）， IL-10， transforming growth factor-β （TGF-β）， forkhead box P3 （FoxP3）， CXCR4， phosphoinositide 3-kinase （PI3K）， and protein kinase B （Akt）. Western blot was used to detect the expression of helper T （Th）17/regulatory T （Treg） cell signature factors （RORγt， FoxP3）， CXCR4， PI3K， phosphorylated （p）-PI3K， Akt， and p-Akt. In a separate set of experiments， cells were divided into the Sham group， OVX+CIA group， OVX+CIA+CXCR4 antagonist AMD3100 group， and OVX+CIA+YSJB+AMD3100 group to observe changes in the above indicators following AMD3100 intervention. ResultsCompared with the Sham group， the number of migrated cells in the lower chamber was significantly increased in the Sham+CIA and OVX+CIA groups （P<0.05， P<0.01）. The mRNA expression of RORγt， IL-17， TNF-α， CXCR4， PI3K， and Akt was significantly upregulated， whereas FoxP3， IL-10， and TGF-β mRNA expression was significantly decreased （P<0.05， P<0.01）. Protein expression of RORγt， CXCR4， p-PI3K/PI3K， and p-Akt/Akt was significantly increased， while FoxP3 protein expression was markedly decreased （P<0.05， P<0.01）. Compared with the OVX+CIA group， the OVX+CIA+YSJB group and OVX+CIA+MTX group showed significantly reduced migration （P<0.05）， mRNA expression of RORγt， IL-17， TNF-α， CXCR4， PI3K， and Akt was also significantly decreased， while FoxP3， IL-10， and TGF-β mRNA expression was significantly increased （P<0.05， P<0.01）. RORγt protein expression was significantly downregulated， and FoxP3 protein expression markedly upregulated （P<0.05）. In the OVX+CIA+YSJB group， CXCR4， p-PI3K/PI3K， and p-Akt/Akt protein expression was significantly decreased （P<0.05）. Compared with the OVX+CIA group， RORγt， CXCR4， PI3K， and Akt mRNA expression in CD4⁺T cells was significantly decreased in the OVX+CIA+AMD3100 group and the OVX+CIA+YSJB+AMD3100 group， while FoxP3 mRNA and protein expression was significantly upregulated （P<0.05， P<0.01）. RORγt， CXCR4， p-PI3K/PI3K， and p-Akt/Akt protein expression was also markedly decreased （P<0.05， P<0.01）. Compared with the OVX+CIA+AMD3100 group， the OVX+CIA+YSJB+AMD3100 group showed significantly decreased RORγt and Akt mRNA expression （P<0.05） and significantly lower p-Akt/Akt protein expression （P<0.05）. ConclusionYSJB-containing bone marrow fluid suppresses CD4⁺T-cell migration and regulates Th17/Treg balance by downregulating Th17-associated signature factors and upregulating Treg-associated signature factors through inhibition of the SDF-1/CXCR4 signaling pathway and PI3K/Akt signaling pathway. The SDF-1/CXCR4 signaling pathway is one of the targets through which YSJB inhibits CD4⁺T-cell differentiation.

Objective To investigate the value of serum ribosomal biogenesis factor nucleolar protein53(NOP53)mRNA and fibronectin type Ⅲ domain containing 1(FNDC1)mRNA in evaluating the efficacy of neoadjuvant chemoradiotherapy(NACRT)in patients with locally advanced rectal cancer.Methods A total of 140 patients with locally advanced rectal cancer who received NACRT treatment in Yulin Hospital the First Affiliated Hospital of Xi'an Jiaotong University from January 2020 to January 2023 were selected as the study group.According to the efficacy of NACRT treatment,they were divided into good response group(99 cases)and poor response group(41 cases).At the same time,70 healthy people were selected as control group.Real-time fluorescence quantitative PCR was used to detect serum NOP53 mRNA and FNDC1 mRNA levels in the two groups.Logistic regression analysis was used to analyze the factors affecting the efficacy of NACRT.The value of serum NOP53 mRNA and FNDC1 mRNA in evaluating the efficacy of NACRT for rectal cancer was analyzed by receiver operating characteristic analysis.Results The expression of serum NOP53 mRNA(3.21±0.36)and FNDC1 mRNA(2.73±0.34)in the study group was higher than that in the control group(0.61±0.17,0.72±0.18),and the differences were statistically significant(t=57.267,46.287,all P<0.001).The expression of serum NOP53 mRNA(4.08±0.43,4.10±0.40)and FNDC1 mRNA(3.62±0.39,3.40±0.39)in patients with T stage T4 and N stage N1+N2 rectal cancer was higher than that in patients with T stage T3(2.52±0.30,2.02±0.29)and N stage N0(2.21±0.31,1.02±0.30),and the differences were statistically significant(t=25.241～40.106,all P<0.001).The proportion of T stage T4(73.17%),N stage N1+N2(75.61%),serum NOP53 mRNA(5.56±0.39)and FNDC1 mRNA(4.42±0.38)in the poor response group were higher than those in the good response group(32.32%,43.43%,2.24±0.31,2.03±0.29),and the differences were statistically significant(t=12.045～53.337,all P<0.001).T stage T4,N stage N1+N2,high serum NOP53 mRNA,high serum FNDC1 mRNA were risk factors affecting the efficacy of NACRT for rectal cancer(Wald χ2=9.463～15.589,all P<0.001).The AUC of serum NOP53 mRNA combined with FNDC1 mRNA in evaluating the efficacy of NACRT for rectal cancer higher than predicted by serum NOP53 mRNA and FNDC1 mRNA alone,and the differences were statistically significant(Z=4.645,4.321,all P<0.001).Conclusion The levels of serum NOP53 mRNA and FNDC1 mRNA in patients with locally advanced rectal cancer are increased,which are related to the poor clinicopathological features of patients.Combined with serum NOP53 mRNA,FNDC1 mRNA can effectively predict the clinical efficacy of NACRT in patients with rectal cancer.

OBJECTIVE: To compare the biomechanical properties of four internal fixation methods in a lower cervical spine injury model using the finite element method. METHODS: Cervical CT data of a 28-year-old healthy adult male were utilized to establish a finite element model of the normal cervical spine and a lower cervical spine three-column injury model. Four internal fixation methods were then applied to the three-column injury model, resulting in four groups:Group A, anterior cervical locked-plate(ACLP) fixation system model(anterior approach);Group B, posterior cervical pedicle screw fixation model (posterior approach);Group C, combined anterior and posterior cervical pedicle screw fixation model; Group D, Novel composite anterior cervical internal fixation model. A 75 N axial compressive load and a 1.0 N·m pure moment were applied to the upper surface of the cervical spine model to simulate flexion, extension, rotation, and lateral bending movements. The intervertebral range of motion(ROM) and stress distribution of the internal fixators under different motion conditions were compared across all models. RESULTS: Compared with the normal model, the reductions in overall intervertebral ROM for each group under flexion, extension, rotation, and lateral bending were as follows:Group A, 24.04°, 23.12°, 6.24°, and 9.06°;Group B, 24.42°, 24.34°, 6.48°, and 9.20°;Group C, 25.43°, 25.29°, 7.17°, and 9.57°;Group D, 24.75°, 25.5°, 6.71°, and 9.12°. The peak stress values of the internal fixators in each group were:Group A, 53.9 MPa, 79.9 MPa, 61.4 MPa, and 80.3 MPa;Group B, 218.3 MPa, 105.4 MPa, 206.6 MPa, and 186.8 MPa;Group C, 40.8 MPa, 97.2 MPa, 47.1 MPa, and 39.4 MPa;Group D, 93.0 MPa, 144.0 MPa, 64.8 MPa, and 106.3 MPa. CONCLUSION The biomechanical properties of the novel composite anterior cervical internal fixation method are similar to those of the combined anterior-posterior fixation method, and superior to both the anterior cervical ACLP plate-screw fixation and posterior cervical pedicle screw fixation methods.
Humans ; Finite Element Analysis ; Cervical Vertebrae/physiopathology* ; Male ; Biomechanical Phenomena ; Adult ; Fracture Fixation, Internal/methods* ; Range of Motion, Articular

Rheumatic diseases,as a complex class of chronic immune-mediated disorders,involve interplay among genetics,environment,and immunity in their pathogenesis,which remains incompletely elucidated to date.In recent years,with the advancement of epigenetic research,particularly in the field of RNA modifications,the role of m6 A methylation in rheumatic diseases has increasingly garnered attention.Traditional Chinese medicine(TCM),as the indigenous medical system of China,has accumulated extensive experience in the treatment of rheumatic diseases.This article systematically reviewed the research progress of TCM in treating rheumatic diseases such as rheumatoid arthritis,systemic lupus erythematosus,Sj?gren's syndrome,ankylosing spondylitis,and osteoarthritis,as well as improving bone metabolism abnormalities closely related to rheumatic diseases,through regulating m6 A methylation.The aim is to provide novel insights into the treatment of rheumatic diseases with TCM and to offer theoretical support for the development of related functional drugs.

Rheumatic diseases,as a complex class of chronic immune-mediated disorders,involve interplay among genetics,environment,and immunity in their pathogenesis,which remains incompletely elucidated to date.In recent years,with the advancement of epigenetic research,particularly in the field of RNA modifications,the role of m6 A methylation in rheumatic diseases has increasingly garnered attention.Traditional Chinese medicine(TCM),as the indigenous medical system of China,has accumulated extensive experience in the treatment of rheumatic diseases.This article systematically reviewed the research progress of TCM in treating rheumatic diseases such as rheumatoid arthritis,systemic lupus erythematosus,Sj?gren's syndrome,ankylosing spondylitis,and osteoarthritis,as well as improving bone metabolism abnormalities closely related to rheumatic diseases,through regulating m6 A methylation.The aim is to provide novel insights into the treatment of rheumatic diseases with TCM and to offer theoretical support for the development of related functional drugs.

Objective To investigate the value of serum ribosomal biogenesis factor nucleolar protein53(NOP53)mRNA and fibronectin type Ⅲ domain containing 1(FNDC1)mRNA in evaluating the efficacy of neoadjuvant chemoradiotherapy(NACRT)in patients with locally advanced rectal cancer.Methods A total of 140 patients with locally advanced rectal cancer who received NACRT treatment in Yulin Hospital the First Affiliated Hospital of Xi'an Jiaotong University from January 2020 to January 2023 were selected as the study group.According to the efficacy of NACRT treatment,they were divided into good response group(99 cases)and poor response group(41 cases).At the same time,70 healthy people were selected as control group.Real-time fluorescence quantitative PCR was used to detect serum NOP53 mRNA and FNDC1 mRNA levels in the two groups.Logistic regression analysis was used to analyze the factors affecting the efficacy of NACRT.The value of serum NOP53 mRNA and FNDC1 mRNA in evaluating the efficacy of NACRT for rectal cancer was analyzed by receiver operating characteristic analysis.Results The expression of serum NOP53 mRNA(3.21±0.36)and FNDC1 mRNA(2.73±0.34)in the study group was higher than that in the control group(0.61±0.17,0.72±0.18),and the differences were statistically significant(t=57.267,46.287,all P<0.001).The expression of serum NOP53 mRNA(4.08±0.43,4.10±0.40)and FNDC1 mRNA(3.62±0.39,3.40±0.39)in patients with T stage T4 and N stage N1+N2 rectal cancer was higher than that in patients with T stage T3(2.52±0.30,2.02±0.29)and N stage N0(2.21±0.31,1.02±0.30),and the differences were statistically significant(t=25.241～40.106,all P<0.001).The proportion of T stage T4(73.17%),N stage N1+N2(75.61%),serum NOP53 mRNA(5.56±0.39)and FNDC1 mRNA(4.42±0.38)in the poor response group were higher than those in the good response group(32.32%,43.43%,2.24±0.31,2.03±0.29),and the differences were statistically significant(t=12.045～53.337,all P<0.001).T stage T4,N stage N1+N2,high serum NOP53 mRNA,high serum FNDC1 mRNA were risk factors affecting the efficacy of NACRT for rectal cancer(Wald χ2=9.463～15.589,all P<0.001).The AUC of serum NOP53 mRNA combined with FNDC1 mRNA in evaluating the efficacy of NACRT for rectal cancer higher than predicted by serum NOP53 mRNA and FNDC1 mRNA alone,and the differences were statistically significant(Z=4.645,4.321,all P<0.001).Conclusion The levels of serum NOP53 mRNA and FNDC1 mRNA in patients with locally advanced rectal cancer are increased,which are related to the poor clinicopathological features of patients.Combined with serum NOP53 mRNA,FNDC1 mRNA can effectively predict the clinical efficacy of NACRT in patients with rectal cancer.

Humans ; Gastrointestinal Microbiome ; Constipation/therapy* ; Probiotics/therapeutic use* ; Patients

Objective:To explore effects and mechanisms of medium and low doses X-ray irradiation on polarization type changes of tumor associated macrophages(TAMs).Methods:Mouse RAW264.7 macrophage line was cultured with supernatant of 4T1 tumor cell culture(4T1-TCS)of mouse breast cancer,and induced to M2 TAMs.On this basis,medium and low doses X-ray irra-diation was conducted,and NO was detected by Griess method,CD86 and CD206 were detected by flow cytometry.ELISA was use to detect cytokines IL-10 and IL-12p70,immunofluorescence was use to detect iNOS and Arg-1.Western blot was used to detect polariza-tion related pathway proteins,and whether medium and low doses of radiation could alter polarization type of TAMs was observed.Results:4T1-TCS induced TAM had decreasing NO secretion and increasing CD206 and Arg-1 expressions,iNOS expression was decreased;with low doses irradiation(0.075 Gy,0.5 Gy,1 Gy)of TCS-TAM,compared with non irradiation group,NO secretion,expressions of CD86,CD206,Arg-1 and iNOS showed no significant changes;medium doses(2 Gy,4 Gy,6 Gy)of irradiation on TCS-TAM resulted in increased secretion of NO,and flow cytometry results showed increased expressions of CD86,decreased CD206 expression;immunofluorescence results showed an increase in iNOS expression and a decrease in Arg-1 expression in cells;ELISA results showed an increase in secretion of IL-12p70 by cells and a decrease in secretion of IL-10.Western blot results showed that NOX2,ATMS1981*,IRF5 proteins expressions were increased.Conclusion:4T1-TCS can successfully induce macrophage RAW264.7 polarize into M2 phenotype,while low dose irradiation has no significant effect on polarization phenotype of TCS-TAM.Medium dose irradiation can induce TCS-TAM polarization into M1 phenotype that inhibits tumor growth,and reversal mechanism of polarization may be related to IRF5 pathway.

OBJECTIVE: To compare the clinical efficacy of micro steel plate and Kirschner needle oblique and transverse internal fixation of adjacent metacarpal bone in the treatment of metacarpal diaphyseal oblique fracture. METHODS: Fifty-nine patients with metacarpal diaphyseal oblique fractures admitted between January 2018 and September 2021 were selected as the study subjects and divided into the observation group (29 cases) and the control group (30 cases) based on different internal fixation methods. The observation group was treated with Kirschner wire oblique and transverse internal fixation of adjacent metacarpal bones, while the control group was treated with micro steel plate internal fixation. Postoperative complications, operation time, incision length, fracture healing time, treatment cost, and metacarpophalangeal function were compared between the two groups. RESULTS: No incision or Kirschner wire infections occurred in the 59 patients, except for one in the observation group. No fixation loosening, rupture, or loss of fracture reduction occurred in any of the patients. The operation time and incision length in the observation group were (20.5±4.2) min and (1.6±0.2) cm, respectively, which were significantly shorter than those in the control group (30.8±5.6) min and (4.3±0.8) cm (P<0.05). The treatment cost and fracture healing time in the observation group were (3 804.5±300.8) yuan and (7.2±1.1) weeks, respectively, which were significantly lower than those in the control group (9 906.9±860.6) yuan and (9.3±1.7) weeks (P<0.05). The excellent and good rate of metacarpophalangeal joint function in the observation group was significantly higher than that in the control group at 1, 2, and 3 months after operation (P<0.05), but there was no significant difference between the two groups at 6 months after operation (P>0.05). CONCLUSION Micro steel plate internal fixation and Kirschner wire oblique and transverse internal fixation of adjacent metacarpal bones are both viable surgical methods for treating metacarpal diaphyseal oblique fractures. However, the latter has the advantages of causing less surgical trauma, shorter operation time, better fracture healing, lower cost of fixation materials, and no need for secondary incision and removal of internal fixation.
Humans ; Metacarpal Bones/injuries* ; Fractures, Bone/surgery* ; Fracture Fixation, Internal/methods* ; Bone Wires ; Bone Plates ; Treatment Outcome

Objective: To understand the use of condom among middle school students after outpatient abortion operation, so as to provide a basis for safe sex education and intervention. Methods: The questionnaire survey on condom use was conducted among the middle school students who had abortion operation in obstetric and gynecologic out patient clinic of Yuyao People s Hospital from 2016 to 2020. Group differences were compared by using Chi square test. Results: A total of 274 middle school students were investigated. The awareness rates on "AIDS can be transmitted through sexual contact" and "correct use of condoms can reduce the risk of AIDS through sexual transmission" were 93.80% and 91.24% respectively. The rate of condom s usage was 17.88% in the past 6 months, 5.47% of participants used condoms every time, 12.41% used condoms occasionally, and 82.12% never used condoms. About 18.37% of participants who used condoms every time or occasionally could use correctly. The top three reasons were "I don t think it s so coincidental to get pregnant once in a while" (16.44%), "I think it s very troublesome to use it" (14.67%), "I didn t expect to use it, let alone prevent diseases" (14.22%). Conclusion Yuyao City flow of students related AIDS knowledge awareness rate is high, and the condom utilization rate, the correct utilization rate is very low. According to the main reasons of not wearing condoms, do a good job of the correct use of condom publicity, through targeted sex education and intervention, to achieve the purpose of from "knowledge" to "faith" and ultimately to "practice".