Objective To evaluate the efficacy and safety of intraoperative pleural irrigation with Nocardia rubra cell-wall skeleton (N-CWS) for reducing pleural effusion drainage after radical surgery for lung cancer. Methods A retrospective analysis was conducted on the clinical data of lung cancer patients who underwent lobectomy and mediastinal lymph node dissection at the First Affiliated Hospital of Xiamen University between December 2024 and May 2025. Patients were divided into a control group and an irrigation group based on the intraoperative use of N-CWS. Patients in the irrigation group received pleural irrigation with 800 μg of N-CWS diluted in 10 mL of normal saline. The following outcomes were compared between the two groups: pleural effusion drainage volume at 0-24 h, 24-48 h, and 48-72 h postoperatively, degree of air leak, chest tube duration, postoperative length of stay, and the incidence of adverse events (fever, chest pain, and nausea and vomiting). Results A total of 245 patients were included (97 males, 148 females) with a mean age of (61.28±6.26) years, with 205 in the control group and 40 in the irrigation group. Compared to the control group, the irrigation group showed significantly lower pleural effusion drainage volumes at 0-24 h, 24-48 h, and 48-72 h, as well as shorter chest tube duration and postoperative length of stay (all P<0.05). There was no statistical difference in the degree of postoperative air leak (P=0.661). No significant differences were observed between the two groups regarding the highest body temperature within 72 h post-surgery (P=0.130), fever grade (P=0.196), severity of chest pain (P=0.105), or the incidence of nausea and vomiting (P=0.376). Conclusion Intraoperative pleural irrigation with N-CWS in patients undergoing lobectomy and mediastinal lymph node dissection for lung cancer can significantly reduce postoperative pleural effusion drainage volume, shorten chest tube duration and length of hospital stay. The procedure is safe and feasible.

Background Regulatory interactions between microRNAs (miRNAs) and messenger RNAs (mRNAs) are involved in the progression of pulmonary fibrosis, which can either promote or inhibit the development of this disease. Objective To explore the miRNA-mRNA regulatory network during the progression of silica (SiO₂)-induced pulmonary fibrosis in mice using integrated mRNA-seq and miRNA-seq analysis. Methods A mouse model of pulmonary fibrosis was established by dynamic SiO₂ dust exposure. The experimental design included a blank control group and four SiO₂-exposed groups (7, 14, 28, and 56 d, n=10 per group). Successful model induction was confirmed by histopathological analysis (HE and Masson staining), hydroxyproline (HYP) quantification, and expression of key fibrosis-related cytokines [fibroblast growth factor (FGF), interleukin-6 (IL-6), transforming growth factor-β (TGF-β), and tumor necrosis factor-α (TNF-α)]. Lung tissues from mice in each group were subjected to sequencing, and Mfuzz was used for time-series gene clustering to identify dynamic progression patterns. DESeq2 was utilized to identify differentially expressed genes (DEGs) and differentially expressed miRNAs. Enrichment analysis of DEGs was performed to identify critical signaling pathways and biological processes underlying pulmonary fibrosis progression. Expression of four selected miRNAs was subsequently validated by real-time quantitative polymerase chain reaction (RT-qPCR). The target mRNAs of key miRNAs were comprehensively predicted by integrating miRBase, starBase, and miRTarBase to construct the regulatory networks and investigate potential functions. Results SiO₂ exposure led to time-dependent aggravation of pulmonary fibrosis in mice, evidenced by increased fibrous deposition, elevated HYP levels (P < 0.01), and up-regulation of four kinds of pro-fibrotic cytokines (P < 0.01) compared with the NT group. Mfuzz clustering revealed the stage-specific characteristics. Compared to controls, 231, 662, 448, and 1020 DEGs were identified after SiO₂ exposure at 7, 14, 28, and 56 d, respectively, primarily enriched in immune responses and chemokine signaling. During critical fibrotic phases—7 d (acute inflammation and initiation) and 28 d (chronic inflammation and establishment)—18 differentially expressed miRNAs were identified; notably mmu-miR-135b-5p was significantly dysregulated at both time points. The expression trends of the four key miRNAs (mmu-miR-135b-5p, mmu-miR-708-5p, mmu-miR-21a-3p, and mmu-miR-205-5p) were consistent with the sequencing results. Furthermore, bioinformatics databases were used to predict the target mRNAs of key miRNAs. The constructed network highlighted critical miRNA-mRNA pairs—including mmu-miR-135b-5p and Meis1, mmu-miR-708-5p and Mmp25, mmu-miR-21a-3p and Cacna1d, mmu-miR-205-5p and Ereg which were closely associated with inflammatory response, extracellular matrix deposition, and fibroblast activation. Conclusion The progression of pulmonary fibrosis is accompanied by dynamic changes in miRNA-mRNA regulatory networks. The identified miRNA-target axes (e.g., miR-135b-5p and Meis1, mmu-miR-708-5p and Mmp25, mmu-miR-21a-3p and Cacna1d, and mmu-miR-205-5p and Ereg—) may play important roles in fibrogenesis and provide potential therapeutic targets for pulmonary fibrosis.

Background Regulatory interactions between microRNAs (miRNAs) and messenger RNAs (mRNAs) are involved in the progression of pulmonary fibrosis, which can either promote or inhibit the development of this disease. Objective To explore the miRNA-mRNA regulatory network during the progression of silica (SiO₂)-induced pulmonary fibrosis in mice using integrated mRNA-seq and miRNA-seq analysis. Methods A mouse model of pulmonary fibrosis was established by dynamic SiO₂ dust exposure. The experimental design included a blank control group and four SiO₂-exposed groups (7, 14, 28, and 56 d, n=10 per group). Successful model induction was confirmed by histopathological analysis (HE and Masson staining), hydroxyproline (HYP) quantification, and expression of key fibrosis-related cytokines [fibroblast growth factor (FGF), interleukin-6 (IL-6), transforming growth factor-β (TGF-β), and tumor necrosis factor-α (TNF-α)]. Lung tissues from mice in each group were subjected to sequencing, and Mfuzz was used for time-series gene clustering to identify dynamic progression patterns. DESeq2 was utilized to identify differentially expressed genes (DEGs) and differentially expressed miRNAs. Enrichment analysis of DEGs was performed to identify critical signaling pathways and biological processes underlying pulmonary fibrosis progression. Expression of four selected miRNAs was subsequently validated by real-time quantitative polymerase chain reaction (RT-qPCR). The target mRNAs of key miRNAs were comprehensively predicted by integrating miRBase, starBase, and miRTarBase to construct the regulatory networks and investigate potential functions. Results SiO₂ exposure led to time-dependent aggravation of pulmonary fibrosis in mice, evidenced by increased fibrous deposition, elevated HYP levels (P < 0.01), and up-regulation of four kinds of pro-fibrotic cytokines (P < 0.01) compared with the NT group. Mfuzz clustering revealed the stage-specific characteristics. Compared to controls, 231, 662, 448, and 1020 DEGs were identified after SiO₂ exposure at 7, 14, 28, and 56 d, respectively, primarily enriched in immune responses and chemokine signaling. During critical fibrotic phases—7 d (acute inflammation and initiation) and 28 d (chronic inflammation and establishment)—18 differentially expressed miRNAs were identified; notably mmu-miR-135b-5p was significantly dysregulated at both time points. The expression trends of the four key miRNAs (mmu-miR-135b-5p, mmu-miR-708-5p, mmu-miR-21a-3p, and mmu-miR-205-5p) were consistent with the sequencing results. Furthermore, bioinformatics databases were used to predict the target mRNAs of key miRNAs. The constructed network highlighted critical miRNA-mRNA pairs—including mmu-miR-135b-5p and Meis1, mmu-miR-708-5p and Mmp25, mmu-miR-21a-3p and Cacna1d, mmu-miR-205-5p and Ereg which were closely associated with inflammatory response, extracellular matrix deposition, and fibroblast activation. Conclusion The progression of pulmonary fibrosis is accompanied by dynamic changes in miRNA-mRNA regulatory networks. The identified miRNA-target axes (e.g., miR-135b-5p and Meis1, mmu-miR-708-5p and Mmp25, mmu-miR-21a-3p and Cacna1d, and mmu-miR-205-5p and Ereg—) may play important roles in fibrogenesis and provide potential therapeutic targets for pulmonary fibrosis.

Objective To discuss the main pathological types and imaging characteristics of pulmonary nodules that are highly suspected to be malignant in clinical practice but are pathologically confirmed to be benign. Methods A retrospective analysis was performed on the clinical data of patients with pulmonary nodules who were initially highly suspected of malignancy but were subsequently pathologically confirmed to be benign. These patients were treated at the First Affiliated Hospital of Xiamen University from December 2020 to April 2023. Based on the outcomes of preoperative discussions, the patients were categorized into a benign group and a suspicious malignancy group. The clinical data and imaging characteristics of both groups were compared. Results A total of 232 patients were included in the study, comprising 112 males and 120 females, with a mean age of (50.7±12.0) years. Among these, 127 patients were classified into the benign group, while 105 patients were categorized into the suspicious malignancy group. No statistically significant differences were observed between the two groups regarding age, gender, symptoms, smoking history, or tumor history (P>0.05). However, significant differences were noted in nodule density, CT values, margins, shapes, and malignant signs (P＜0.05). Further analysis revealed that in the suspicious malignancy group, solid nodules were predominantly characterized by collagen nodules and fibrous tissue hyperplasia (33.3%), followed by tuberculosis (20.4%) and fungal infections (18.5%). In contrast, non-solid nodules were primarily composed of collagen nodules and fibrous tissue hyperplasia (41.2%) and atypical adenomatous hyperplasia (17.7%). Conclusion Benign pulmonary nodules that are suspected to be malignant are pathologically characterized by the presence of collagen nodules, fibrous tissue hyperplasia, tuberculosis, atypical adenomatous hyperplasia, and fungal infections. Radiologically, these nodules typically present as non-solid lesions and may exhibit features suggestive of malignancy, including spiculation, lobulation, cavitation, and pleural retraction.

Objective To explore the effect of composite electromagnetic stimulation combined with chin tuck against resistance(CTAR)on post-stroke dysphagia.Methods From January,2021 to December,2023,156 post-stroke patients with pharyngeal dysphagia in the First Peo-ple's Hospital of Yibin were randomly divided into CTAR group(n=51),neuromuscular electrical stimulation(NMES)+repetitive transcranial magnetic stimulation(rTMS)group(n=52)and combination group(n=53).On the basis of routine swallowing function training,they received CTAR,NMES+rTMS and NMES+rTMS+CTAR,respectively,for four weeks.They were assessed with Functional Oral Intake Scale(FOIS),Standardized Swal-lowing Assessment(SSA),Swallowing-Quality of Life(SWAL-QOL),Rosenbek Penetration Aspiration Scale(PAS),video fluoroscopic swallowing study(VFSS)(including the score of VFSS,pharyngeal transit time,and upward and forward displacement of hyoid bone),average surface electromyography(AMEG)of submental and hyoid muscles,before and after treatment.Results The inter-group effect,intra-group effect and interaction effect were significant in SSA,SWAL-QOL and AMEG of the two muscles(F>6.611,P<0.001).The inter-group effect and interaction effect were significant in FOIS,VFSS,pharyngeal transit time,upward displacement of hyoid bone and forward displacement of hyoid bone(F>3.451,P<0.05).Pairwise comparison results showed that pharyngeal transit time was shorter in the combination group than in NMES+rTMS group(P=0.048),forward displacement of hyoid bone was more in the combina-tion group than in CTAR group(P=0.002),and AMEG was higher in the combination group than in CTAR group and NMES+rTMS group(P<0.001).There was significant difference in the score of PAS among three groups(Hc=8.282,P=0.016),and it was the best in the combination group.Conclusion The combination of NMES+rTMS and CTAR is superior to single electromagnetic stimulation or CTAR in the treatment of post-stroke sysphagia.

Nocardia is a Gram-positive pathogen responsible for causing dairy mastitis,which leads to purulent granulomatous lesions in mammary tissue and can significantly impact the dairy indus-try,resulting in substantial economic losses.To develop a rapid and accurate diagnostic method for detecting Nocardia of bovine origin,a conserved sequence of the 16S rRNA gene from Nocardia was selected from the NCBI database.Based on this sequence,a pair of primers and a TaqMan fluo-rescent quantitative probe were designed.The validation of the TaqMan fluorescence quantitative PCR(qPCR)method found in this study showed that the Ctvalue had a good linear relationship with recombinant plasmid concentrations ranging from 1×1010 to 1×102 copies/μL,with a regres-sion equation of y=-3.536x+43.78,a correlation coefficient(R2)of 0.997 5,a slope of-3.536,and an amplification efficiency(E)of 91％(where 90％＜E＜110％).The specificity was strong,with no cross-reactions with other pathogens.The standard curve had a high sensitivity with a low-er detection limit of 1 × 102 copies/μL,it was 100-fold higher than conventional PCR.The repeatability of the standard curve was also good.Both intra-and inter-group coefficients of varia-tion were below 2％.Using this method,234 milk samples and 80 environmental samples were tested using this method,respectively,with a positive detection rate of 27.07％,whereas conven-tional PCR had a positive detection rate of 19.43％,indicating that this method was more sensitive compared to conventional PCR.The fluorescent quantitative PCR detection method established in this study provides an effective means for the clinical detection of Nocardia in dairy cows.

OBJECTIVE To explore the relationship between peripheral blood interferon γ(IFN-γ)/interleukin-4(IL-4)and the short-term prognosis of children with Mycoplasma pneumoniae pneumonia(MPP),and to analyze the influencing factors for the short-term prognosis of children with MPP.METHODS A total of 170 children with MPP admitted to the hospital from Jan.2021 to Jan.2024 were selected(MPP group).Based on the condition 28 days after treatment,they were divided into a poor prognosis group(n=49)and a good prognosis group(n=121).Clinical data of the children were collected,and the levels of peripheral blood interleukin-4(IL-4)and inter-feron-γ(IFN-γ)were measured to calculate the IFN-γ/IL-4 ratio.Multivariate Logistic regression model was used to analyze the factors affecting the short-term prognosis of children with MPP.RESULTS In the poor prognosis group,the duration of antibiotic use,the proportion of pleural effusion,the proportion of extrapulmonary compli-cations,and the levels of peripheral blood IL-4 and IFN-γ were higher than those in the good prognosis group,while the IFN-γ/IL-4 ratio was lower than that in the good prognosis group(P＜0.05).Logistic regression re-sults showed that persistent fever,prolonged antibiotic use and the occurrence of extrapulmonary complications were risk factors for the short-term prognosis of children with MPP(P＜0.05),and a high IFN-γ/IL-4 ratio was a protective factor(P＜0.05).CONCLUSION Persistent fever,prolonged antibiotic use and extrapulmonary com-plications are risk factors for the short-term prognosis of children with MPP,and high IFN-γ/IL-4 values is a pro-tective factor.

Objective To explore the clinical application value of simple artery occlusion (SAO) in revealing intersegmental planes during thoracoscopic pulmonary segmentectomy. Methods A retrospective analysis was conducted on the clinical data of patients who underwent thoracoscopic pulmonary segmentectomy at the First Affiliated Hospital of Xiamen University from February 2022 to December 2023. Patients were divided into a conventional group and a SAO group based on the method used to reveal the intersegmental plane during surgery. The two groups were compared in terms of intraoperative blood loss, operation time, postoperative drainage volume, time to intubation, postoperative pulmonary air leakage, and conversion to open thoracotomy rate. Results A total of 318 patients were included. There were 181 patients in the conventional group, including 86 males and 95 females, with an average age (53.35±9.20) years, and there were 137 patients in the SAO group, including 58 males and 79 females, with an average age (55.26±11.46) years. There were no statistical differences in general patient information between the two groups (P>0.05). The SAO group had less intraoperative blood loss [MD=17.568, 95%CI (9.968, 25.168), P<0.001] and postoperative drainage volume [MD=275.587, 95%CI (188.999, 362.175), P<0.001], shorter drainage tube duration [MD=1.000, 95%CI (1.000, 2.000), P<0.001] and operation time [MD=20.709, 95%CI (16.258, 25.159), P<0.001]. The incidence of postoperative pulmonary air leakage complications in the SAO group was lower than that in the conventional group [RR=0.361, 95%CI (0.181, 0.722), P=0.003]. Conclusion SAO can reduce surgical difficulty, shorten operation time, decrease the incidence of postoperative pulmonary air leakage, and enhance the safety of anatomical pulmonary segmentectomy, making it worthy of clinical promotion and application.

Objective To observe the clinical efficacy of Jin's triple-needle therapy combined with bilateral high-frequency repetitive transcranial magnetic stimulation in the treatment of post-stroke hemiplegia.Methods A total of 116 patients diagnosed with post-stroke hemiplegia and admitted to the wards and outpatient clinics of Yan'an City Hospital of Traditional Chinese Medicine from January 2023 to June 2024 were selected as the study subjects.The patients were randomly divided into an observation group and a control group using a random number table,with 58 patients in each group.The control group received bilateral high-frequency repetitive transcranial magnetic stimulation,while the observation group received Jin's triple-needle therapy in addition to the control group's treatment.After 30-day treatment,the clinical efficacy of the two groups was evaluated.Changes in traditional Chinese medicine(TCM)syndrome scores,Fugl-Meyer Assessment(FMA)scores for limb motor function,and Stroke-Specific Quality of Life(SS-QOL)scores were observed before and after treatment.Changes in neuron-specific enolase(NSE),glial fibrillary acidic protein(GFAP),and central nervous system-specific protein(S100-β)levels were compared between the two groups before and after treatment.The safety and incidence of adverse reactions in both groups were also evaluated.Results(1)The total effective rate in the observation group was 91.38%(53/58),compared to 75.86%(44/58)in the control group.The observation group showed significantly better efficacy than the control group,with a statistically significant difference(P＜0.05).(2)After treatment,both groups showed significant improvements in TCM syndrome scores and FMA scores for limb motor function(P＜0.05),and the observation group was significantly superior to the control group in improving TCM syndrome scores and FMA scores,with a statistically significant difference(P＜0.05).(3)After treatment,both groups showed significant improvementss(P＜0.05)in NSE,GFAP,and S100-β level,and the observation group was significantly superior to the control group in improving NSE,GFAP,and S100-β levels,with a statistically significant difference(P＜0.05).(4)After treatment,both groups showed significant improvements in SS-QOL scores for quality of life(P＜0.05),and the observation group was significantly superior to the control group in improving SS-QOL scores,with a statistically significant difference(P＜0.05).(5)The incidence of adverse reactions in the observation group was 12.07%(7/58),compared to 8.62%(5/58)in the control group.There was no statistically significant difference in the incidence of adverse reactions between the two groups(P＞0.05).Conclusion Jin's triple-needle therapy combined with bilateral high-frequency repetitive transcranial magnetic stimulation can significantly improve clinical symptoms,enhance limb motor function,reduce levels of brain injury markers,and improve the quality of life in patients with post-stroke hemiplegia.The treatment is safe and shows significant efficacy.

Objective:To evaluate the efficacy and feasibility of a domestically developed robotic surgical system based on fiber-optic dedicated line communication in cross-regional urological telesurgery.Methods:This was multicenter，single-arm，retrospective case series study. The data of patients who underwent urological telesurgeries using the telesurgical system between January 2023 and December 2024 were analyzed. The cohort included 59 patients from seven hospitals across China. Among the patients，47 were male（79.7%）and 12 were female（20.3%），with a median age of 63.0（56.0，68.0）years and a body mass index of（24.7 ± 3.0）kg/m 2. Surgical procedures included 32 radical prostatectomies，24 partial nephrectomies，one radical nephrectomy，one adrenalectomy，and one ureteral reconstruction. The perioperative indicators，pathological results and postoperative complications were analyzed. The network monitoring data were collected，and the perioperative data of patients，remote system monitoring data and costs were compared between the two communication modes of optical transport network（OTN）and cloud-connect network（CCN）. Results:All 59 remote surgeries were successfully completed，with a mean operative time of（138.0 ± 54.0）minutes，median intraoperative blood loss of 50.0（30.0，100.0）ml and a postoperative hospital stay of 5.0（4.0，6.0）days. No cases required reoperation，Clavien-Dindo grade ≥3 complications，or readmission. The geographical distance between the primary and remote surgical sites ranged from 450 to 2 800 km. Network monitoring revealed increased bidirectional latency with distance increasing：the shortest latency time（Hefei-Hangzhou，450 km）was（16.59 ± 0.80）ms，while the longest（Harbin-Hangzhou，2 200 km）latency time was（53.31 ± 0.31）ms. Average frame loss per procedure was 0?1.27 frames. The results of subgroup analysis comparing OTN and CCN communication modes showed no significant differences in operative time［（130.7 ± 70.5）minutes vs.（142.1 ± 42.9）minutes， P = 0.442］，postoperative hospitalization［6.0（4.0，8.0）d vs. 5.0（4.0，6.0）d， P = 0.581］，or readmission rates（0 vs. 0）. However，CCN demonstrated significant cost advantages with 500 RMB per operation vs. 3 000 RMB per operation for OTN. Conclusions:Urological telesurgery using fiber-optic communication is feasible. The CCN mode，with its cost-effectiveness，excellent usability，and multi-point interconnection flexibility，is currently the preferred communication model for telesurgical applications.