ObjectiveTo explore the effects of different concentrations of oleic acid on human osteosarcoma cell lines 143B and HOS， as well as the impacts of the optimal concentration of oleic acid on cellular lipid droplet synthesis and cell functions. MethodsThe 143B and HOS cells were treated with varying concentrations of oleic acid （0， 25， 50， 100， and 200 µmol/L） for 48 hours. Following treatment， oil red O staining and BODIPY staining were performed to determine the optimal concentration. Subsequently， CCK-8 assays and colony formation experiments were conducted to assess the effect of this optimal concentration of oleic acid on the cell proliferation of both cell lines. Transwell migration assays were utilized to evaluate the influence of the optimal concentration on migratory capacity and Transwell invasion assays were utilized to evaluate the invasive ability. Additionally， Western blot analysis was employed to examine the expression levels of epithelial-mesenchymal transition （EMT） markers Epithelial cadherin （E-cadherin） and Neural cadherin （N-cadherin） in response to treatment with the optimal concentration of oleic acid. ResultsTreatment with oleic acid did not induce significant cell death in either 143B or HOS cells； however， an increase in intracellular lipid droplets was observed alongside enhanced proliferation， migration， invasion capabilities as well as EMT transformation potential （P<0.05）. ConclusionOleic acid induces lipid droplet synthesis in osteosarcoma cells which subsequently promotes their proliferation， migration and invasion abilities along with EMT transformation.

Objective To explore the application value of dual-phase dual-energy CT (DECT) perfusion imaging in preoperative lung function assessment of lung cancer patients. Methods Data were collected from patients with stageⅠA non-small cell lung cancer who underwent surgical treatment in the Department of Thoracic Surgery, the First Affiliated Hospital of Nanjing Medical University, from November 2022 to June 2024. All patients underwent DECT perfusion imaging and pulmonary function testing (PFT) before surgery. PFT observation indicators included ventilation function indicators such as forced expiratory volume in one second (FEV1), forced vital capacity (FVC), 1-second rate (FEV1/FVC), maximal voluntary ventilation (MVV), and diffusion function indicators such as diffusing capacity for carbon monoxide (DLCO) and DLCO per liter of alveolar volume (DLCO/VA). The software eXamine was used to obtain quantitative parameters of DECT perfusion imaging, including volume parameters and perfusion parameters of both lungs and each lung lobe. The correlation between the volume parameters and perfusion parameters of both lungs and the ventilation and diffusion function indicators of the patients, as well as the differences in quantitative parameters of each lung lobe, was analyzed. Results The end-inspiration lung volume and biphasic volume difference were strongly positively correlated with FEV1 and FVC (r=0.636, r=0.682, r=0.614, r=0.624, P<0.001) and moderately positively correlated with MVV and DLCO (r=0.499, r=0.514, r=0.549, r=0.447, P<0.001); the end-expiration lung volume was weakly negatively correlated with DLCO/VA (r=−0.295, P=0.026); the volume ratio was positively correlated with FEV1, FVC, MVV, and MVV% (r=0.424, r=0.399, r=0.415, r=0.310, P<0.05); the end-inspiration iodine content was weakly positively correlated with DLCO/VA% (rs=0.292, P=0.030); the end-expiration iodine content was weakly positively correlated with FEV1, FVC, MVV, DLCO%, and DLCO/VA (r=0.307, r=0.299, r=0.295, r=0.366, r=0.320, P<0.05) and moderately positively correlated with DLCO (r=0.439, P<0.001); the end-inspiration iodine concentration was negatively correlated with FEV1, FVC, MVV, and MVV% (rs=−0.407, rs=−0.426, rs=−0.352, rs=−0.277, P＜0.05); the end-expiratory phase iodine concentration was moderately positively correlated with DLCO/VA (r=0.403, P=0.002); both the iodine concentration difference and the iodine concentration ratio were moderately positively correlated with FEV1, FEV1%, FVC, MVV, MVV% (P<0.05). The lung volume and iodine concentration ratio values were both highest in the left upper lung lobe and lowest in the right middle lung lobe; the differences in lung volume, lung volume ratio, intrapulmonary iodine content, and intrapulmonary iodine concentration were all highest in the lower lobes of both lungs and lowest in the middle lobe of the right lung. Conclusion Dual-phase DECT perfusion imaging can accurately assess overall lung function and quantify regional lung function.

Objective To analyze the effect of releasing the lower pulmonary ligament on right residual lung expansion after right upper lobe resection under different body mass index (BMI) levels. Methods The clinical data of patients who underwent thoracoscopic right upper lobe resection in the First Affiliated Hospital with Nanjing Medical University from 2021 to 2022 were retrospectively analyzed. Patients were divided into a group A (17 kg/m2＜BMI≤23 kg/m2), a group B (23 kg/m2＜BMI≤29 kg/m2) and a group C (BMI＞29 kg/m2) according to BMI. The presence of residual cavity was judged by chest X-ray at 7-10 days after operation, the degree of compensation change of the right main bronchus angle was measured, and the changes in lung volume were determined by CT three-dimensional reconstruction. Results A total of 157 patients who underwent thoracoscopic right upper lobe resection were included, including 71 males and 86 females, with an average age of (59.7±11.2) years. There were 50 patients in the group A, 75 patients in the group B, and 32 patients in the group C. In the group A, compared with those without releasing the lower pulmonary ligament, patients with releasing had a lower incidence of postoperative residual cavity (P=0.016), greater changes in bronchus angle (P<0.001), and smaller changes in lung volume (P<0.001). In the group B and C, there was no significant effect of releasing the lower pulmonary ligament on postoperative residual cavity, bronchus angle, and lung volume changes (P>0.05). Conclusion For patients with thin and long body shape and low BMI, releasing the lower pulmonary ligament is helpful to promote the expansion of the residual lung after right upper lobe resection and reduce the occurrence of postoperative residual cavity in patients.

ObjectiveTo explore the effect of oral sodium butyrate on skeletal muscle atrophy in CT26 tumor mice through the gut microbiota-skeletal muscle axis and its potential mechanism. MethodsSixty SPF BALB/c male mice aged 8 weeks were randomly divided into a normal control group (NC, n=18) and a ABX-depleted group (ABX, n=42). The ABX mice were pretreated with a quadruple antibiotic cocktail via oral gavage (0.2 ml per administration, once daily, 6 d per week, for 2 weeks), whereas NC received an equal volume of sterile water. The quadruple antibiotic cocktail consisted of metronidazole (1 g/L), vancomycin (0.5 g/L), ampicillin (1 g/L), and gentamicin (1 g/L). Following successful pretreatment, six mice from each group were randomly selected for gut microbiota sequencing analysis and designated as the Abx group and the NC0 group, respectively. Theremaining mice in ABX were subcutaneously inoculated in the dorsum with 0.2 ml of CT26 cell suspension (at a cell density of 1×10⁷/ml). Then these mice were randomly allocated into three subgroups: a control tumor bearing model group (0_NaB, n=12), a tumor-bearing model group receiving low-dose oral sodium butyrate (L_NaB, n=12), a tumor-bearing model group receiving high-dose oral sodium butyrate (H_NaB, n=12). And mice in NC were inoculated at the same site with 0.2 ml of normal saline. The administration dose for L_NaB was 0.3 g/(kg·d), that for H_NaB was 0.5 g/(kg·d), while NC and 0_NaB were given the same volume of normal saline (0.2ml per time, once daily, 6 d per week, for 4 weeks). The general condition of mice was monitored, and forelimb grip strength gastrocnemius muscle mass and its muscle fiber cross-sectional area were measured for each group. The structural changes in gut microbiota were assessed by 16S rRNA sequencing of cecal contents. Pathological alterations in the intestinal wall were examined via HE staining. Serum and gastrocnemius muscle levels of TNF‑α, IL-6, IL-1β, and LPS were quantified using ELISA. The protein expression of ZO-1 and occludin in the small intestine, as well as proteins associated with the TLR4/MyD88/NF-κB signaling pathway in the gastrocnemius muscle, were detected by Western blot analysis. Results(1) The alpha-diversity in Abx was significantly lower than that in NC0 (P<0.01), a significant decrease of the mass and muscle fiber cross-sectional area of the gastrocnemius (P<0.01), with the majority of gut microbiota being effectively depleted. (2) Compared with NC, the subcutaneous tumors of mice in 0_NaB were prominent, a significant increase of the mass and muscle fiber cross-sectional area of the gastrocnemius, accompanied by a significant decrease in body weight at the end of the 3th and 4th week (P<0.05), and a significant weakening of the forelimb grasping strength at the 5th and 6th week (P<0.01). Compared with 0_NaB, the tumor mass of mice in L_NaB and H_NaB showed a significant decreasing trend, and the grip strength of the forelimbs significantly increased at the 5th and 6th week (P<0.05, P<0.01). (3) Compared with 0_NaB, the Shannon and Observed species indices in α diversity of L_NaB and H_NaB were significantly increased (P<0.05). At the genus level, compared with 0_NaB, L_NaB exhibited a significant decrease in the relative abundance of Parasutterella (P< 0.01), while H_NaB showed significant reductions in the relative abundances of both Escherichia-Shigella and Parasutterella (P < 0.01). (4) Compared with 0_NaB, the small intestinal tissue structure in L_NaB and H_NaB was more intact, the infiltration of inflammatory cells was significantly reduced, and the capillaries were slightly dilated. The expression levels of ZO-1 and occludin proteins in L_NaB were significantly increased (P<0.01). (5) The LPS concentration in the gastrocnemius muscle and the protein expression levels of TLR4, MyD88, p-IκBα, and p-NF‑κB p65 in L_NaB and H_NaB were significantly lower than those in 0_NaB (P<0.05). The serum TNF‑α concentration in H_NaB and TNF-α concentration in the gastrocnemius muscle of the L_NaB and H_NaB were significantly lower than those in 0_NaB (P<0.05, P<0.01, P<0.01). ConclusionOral administration of NaB can improve gut microbiota α diversity, adjusting its composition, improving intestinal mucosal barrier function, reducing the LPS-induced pro-inflammatory response, and delaying skeletal muscle atrophy. The underlying mechanism may involve down regulation of TLR4/MyD88/NF-κB signaling in skeletal muscle.

Background: and Purpose Vertebrobasilar fusiform aneurysms (VBFAs) carry substantial morbidity and mortality, but optimal management for unruptured VBFAs remains unclear. We compared the safety and efficacy of conservative management (CM), stent-assisted coiling (SAC), and flow diverters (FDs) in patients with unruptured VBFAs, focusing on long-term prognosis. Methods: This study included data from a nationwide Chinese cohort of patients with vertebrobasilar dissecting aneurysms. Inverse probability of treatment weighting (IPTW) balanced confounders across groups. The primary outcome was poor prognosis (modified Rankin Scale score >2). Secondary outcomes included aneurysm rupture, ischemic stroke, compression symptoms, and VBFA-related deaths. Logistic regression estimated odds ratios (ORs) and 95% confidence intervals (CIs). Subgroup and sensitivity analyses were performed. Results: Among 1,115 patients with unruptured VBFAs, 838 (median age, 54 years; 655 men) were included. After IPTW, baseline characteristics were balanced. Median follow-up was 54 months. FD was associated with a lower risk of poor prognosis than CM (OR, 0.48 [95% CI, 0.30 to 0.77]; p=0.002), with no difference between CM and SAC. FD also reduced aneurysm rupture (OR, 0.20 [95% CI, 0.07 to 0.60]; p=0.004) and compression symptoms (OR, 0.30 [95% CI, 0.13 to 0.68]; p=0.004) versus CM. Time-to-event analyses further revealed significant differences in vertebral artery lesions and Type I–II VBFAs, whereas no significant differences were observed in basilar or vertebrobasilar junction lesions or in Type III–IV VBFAs. Conclusions Compared with CM, FD was associated with improved long-term outcomes in unruptured VBFAs, particularly in vertebral artery lesions and Type I–II VBFAs, although residual confounding cannot be excluded.

The"2025 American Thyroid Association Management Guidelines for Adult Patients with Differentiated Thyroid Cancer"introduce significant updates in genotyping.This article systematically interpreted the role and clinical applications of genotyping in pre-diagnostic differentiation,post-diagnostic familial analysis,surgical approach guidance,postoperative recurrence risk stratification,as well as targeted therapy and immunotherapy with a focus on mutation-based medical decision-making.Key updates on standardized genotyping applications include:① In pathological diagnosis,genotyping was first applied in pathological differentiation.The 2025 ATA guidelines further clarify the distribution patterns of different genetic mutations across pathological subtypes,enabling more precise classification,particularly for tumors of very low malignant potential,to avoid overtreatment.② In familial analysis and genetic counseling,systematic familial evaluation is recommended post-diagnosis.The 2025 ATA guidelines propose strict clinical evidence-based categorization and selective germline genetic testing,with tailored genetic counseling strategies based on genotype.③ In surgical approach and recurrence risk stratification,the 2025 ATA guidelines refine the auxiliary role of genotyping in surgical decision-making and recurrence risk stratification,reiterating that genotyping complements traditional risk stratification systems.④ In targeted therapy,the 2025 ATA guidelines establish genotyping-guided precision therapy,mandating genetic testing for all radioiodine-refractory differentiated thyroid cancer(DTC)patients before targeted therapy to select mutation-specific agents.For patients progressing on target-specific drugs,re-biopsy is recommended to identify actionable targets.If no treatable target exists,multi-kinase inhibitors are advised.⑤ In immunotherapy,pre-treatment genetic testing is recommended,with immunotherapy indicated for radioiodine-refractory DTC patients exhibiting high tumor mutational burden(TMB-H).This article provided a comprehensive review and in-depth analysis of the clinical applications of genotyping in DTC management as outlined in the 2025 ATA guidelines.

Objective:To investigate the clinical efficacy and underlying mechanisms of endoscopic sinus surgery(ESS)combined with budesonide nasal spray in the treatment of chronic rhinosinusitis with nasal polyps(CRSwNP),with a focus on its effects on symptom control,nasal mucosal function repair,immune regulation,and recurrence rate.Methods:A total of 110 patients with CRSwNP were randomly divided into a matched group(60 cases,receiving ESS alone)and an observation group(50 cases,receiving ESS followed by 6 months of postoperative budesonide nasal spray).The Lund-Kennedy score,Visual Analog Scale(VAS)score for symptoms,nasal mucociliary clearance rate(MTR),nasal mucosal T-cell subsets(CD4+/CD8+),inflammatory factors(TGF-β1,VEGF),serum marker(IL-3,IL-4,IL-5,IL-13,TSLP)and complications,recurrence rate(6 months and 12 months)were compared between the two groups before surgery and at 3 and 6 months postoperatively.Results:At 3 months postoperatively,the VAS scores for nasal obstruction,hyposmia,and facial pain in the observation group were lower than those in the matched group(0.76±0.21 vs 1.26±0.34,0.88±0.17 vs 1.48±0.33,0.37±0.07 vs 0.55±0.11,all P＜0.001).At 6 months postoperatively,the Lund-Kennedy score(1.34±0.31 vs 1.65±0.33)and MTR(7.53±1.67 vs 6.54±1.39 mm/min)in the observation group were superior to those in the matched group(both P＜0.05).The CD4+/CD8+ratio(1.03±0.17 vs 0.87±0.14)and TGF-β1 levels(568.33±75.48 vs 506.27±72.87 μg/L)were higher,while VEGF levels(145.95±27.94 vs 178.33±36.37 ng/L)were lower in the observation group(all P＜0.001).At 6 months after surgery,the levels of IL-4,IL-5,IL-13,and TSLP were lower than those in the matched group(P＜0.05).The complication rate(8.00％vs 16.67％)and recurrence rate(4.00％vs 18.33％)in the observation group were lower than those in the matched group(P＜0.05).Conclusion:ESS combined with budesonide can significantly alleviate CRSwNP symptoms and reduce the risk of recurrence by inhibiting Th2-type inflammatory responses,regulating T-cell immune balance,improving ciliary function,and suppressing angiogenesis.The synergistic mechanism involves the dynamic regulation of inflammatory microenvironment remodeling and mucosal repair,demonstrating significant clinical efficacy and safety.This study is the first to propose a postoperative management strategy that integrates mucosal repair,Th2 suppression,and inflammatory remodeling,filling a gap in research on postoperative immune microenvironment regulation.

Objective:To assess the effectiveness of combining color Doppler ultrasound (CDU) with shear wave elastography (SWE) in forecasting the likelihood of breast cancer (BC) recurrence.Methods:From Jan. 2022 to Jan. 2024, we gathered data on 92 BC patients admitted to Shanxi Maternal and Child Health Hospital and Shanxi Cancer Hospital, focusing on their lesion characteristics. Each patient underwent CDU and SWE examinations pre-surgery and was monitored for a year. Based on BC recurrence, patients were categorized into recurrence and non-recurrence groups. We compared CDU imaging and hemodynamic features of BC between these groups and evaluated SWE elastic modulus values. To assess the agreement between CDU, SWE, and their combined use in predicting BC recurrence and pathological diagnosis, we employed the Kappa test. Additionally, we plotted ROC curves to analyze the predictive power of CDU, SWE, and their combination in assessing BC recurrence risk. Results:Among the 92 BC patients studied, 38 experienced recurrence, while 54 did not. CDU examination revealed that the non-recurrence group exhibited significantly larger tumor maximum diameter, higher peak systolic velocity (PSV), a higher proportion of aspect ratio ≥ 1, irregular margins, calcification, and increased vascular abundance, compared to the recurrence group ( t/ χ2=17.188, 18.491, 6.099, 15.374, 14.526, 19.318, P<0.05). Additionally, the vascular resistance index (RI) was lower in the non-recurrence group ( t=-26.429, P<0.05). SWE results indicated that the recurrence group had higher average (E mean), maximum (E max), and minimum (E min) elastic moduli compared to the non-recurrence group ( t=14.39, 12.34, 8.29, P<0.05). CDU and SWE predictions showed substantial agreement with pathological results, with Kappa values of 0.66 and 0.69, respectively ( P<0.05). The combination of CDU and SWE predictions demonstrated excellent concordance with pathological outcomes ( Kappa=0.91, P<0.05). In terms of predicting BC recurrence risk, CDU and SWE had accuracies of 83.70% and 84.21%, respectively. The ROC curve analysis showed AUC values of 0.830 for CDU, 0.847 for SWE, and 0.955 for their combination. Sensitivity was 0.870 for CDU, 0.852 for SWE, and 0.963 for the combination. Specificity was 0.789 for CDU, 0.842 for SWE, and 0.947 for the combination. Positive predictive values were 78.95% for CDU, 84.21% for SWE, and 94.74% for the combination, while negative predictive values were 87.04% for CDU, 85.19% for SWE, and 96.30% for the combination. The AUC for CDU in predicting post-operative BC recurrence risk was not significantly different from SWE ( χ2=0.04, P>0.05), but the combined prediction AUC was significantly higher than individual predictions ( χ2=8.00, 7.04, P<0.05) . Conclusion:The predictive value of CDU and SWE combined examination for the recurrence risk of BC is better than that of single examination, and it is suggested that the combined examination method should be popularized in clinic.

OBJECTIVE To explore the effectiveness and possible mechanism of Shangke Lengtong Patch in treating knee osteo-arthritis with cold-dampness arthralgia obstruction.METHODS A total of 70 patients who met the inclusion criteria of knee osteoar-thritis with cold-dampness arthralgia obstruction in the Orthopedics Department of Affiliated Hospital of Nanjing University of Chinese Medicine from November to December 2024 were randomly divided into an experimental group and a control group,with 35 cases in each group.During the treatment,1 case dropped out of the experimental group,3 cases dropped out of the control group,and 1 case was discontinued.The experimental group was treated with Shangke Lengtong Patch,and the control group was treated with Compound Nanxing Zhitong Ointment.The WOMAC scores and TCM syndrome scores of the two groups before and after treatment were compared to comprehensively evaluate the clinical efficacy.The changes in the expression levels of CGRP,substance P,HMGB1,IL-1β,CX-CL12,and CXCR4 in the serum of the two groups were detected by ELISA.RESULTS After 3,7,and 14 d of treatment,the WOMAC scores and TCM syndrome scores of the two groups were significantly reduced(P<0.05,P<0.01),and the score of aggrava-ted cold in the experimental group was better than that in the control group at 7 d of treatment(P<0.05);after 14 d of treatment,the expression levels of CGRP,substance P,HMGB1,IL-1β,CXCL12,and CXCR4 in the serum of the two groups were significantly re-duced(P<0.05),and there was no statistical difference between the two groups.CONCLUSION Shangke Lengtong Patch can sig-nificantly relieve the pain symptoms of knee osteoarthritis patients with cold-dampness arthralgia obstruction and improve the joint func-tion of patients.It may improve synovial inflammation by inhibiting the HMGB1/CXCL12/CXCR4 pathway,thereby exerting a thera-peutic effect.

In order to explore the relationship between ubiquitin proteasome system(UPS)and au-tophagy after macrophage was infected with Brucella.On the one hand,the levels of LC3 Ⅱ、P62 and 20S proteasomes in cell supernatant and peritoneal fluid were determined respectively after RAW264.7 cells were infected and BALB/c mice were intraperitoneal inoculated with Brucella suis(B.suis).The results displayed that UPS was activated firstly,followed by autophagy after B.suis infection.On the other hand,we prepared the UPS-inhibited-cells and ALP-inhibited-cells by lacta-cystin and 3-methy ladenine(3-MA),and then the cells were infected by B.suis and the levels of LC3 Ⅱ、P62 与 20S proteasomes in cell supernatant were determined.The results showed that the ALP function was significantly improved when the effect of M