Objective:To evaluate the clinical efficacy and safety of dupilumab in the treatment of pediatric prurigo nodularis (PN), and to explore factors associated with the treatment response.Methods:A retrospective analysis was conducted on clinical data from 26 children with PN who received dupilumab treatment at the Institute of Dermatology and Venereology, Sichuan Provincial People's Hospital between December 2022 and January 2025. Primary efficacy endpoints were the proportion of patients achieving investigator's global assessment-activity (IGA PN-A) and stage (IGA PN-S) scores of 0/1 at week 8; secondary efficacy endpoints included the proportion of patients achieving a ≥ 4-point reduction in the pruritus numerical rating scale (NRS) and changes in laboratory parameters. Paired t tests or Wilcoxon signed-rank tests were used for pre- and post-treatment comparisons; generalized estimating equation models were applied to evaluate changes in eczema area and severity index (EASI) scores over time; univariate logistic regression analysis was performed to calculate odds ratios ( ORs) and 95% confidence intervals ( CIs) to analyze factors influencing efficacy. Results:Among the 26 children with PN, 14 (53.8%) were males and 12 (46.2%) were females, with ages ( M[ Q1, Q3]) of 4.50 (3.00, 9.25) years and disease duration of 1.00 (0.48, 2.25) years. Twenty-four (92.3%) patients had comorbid atopic diseases, including 17 with allergic rhinitis and 15 with atopic dermatitis (AD). At week 8, IGA PN-A scores decreased from 3.27 ± 0.53 points at baseline to 1.31 ± 0.84 points ( t = 10.44, P < 0.001), with 16 (61.5%) patients achieving IGA PN-A 0/1; IGA PN-S scores decreased from 3.15 ± 0.46 points at baseline to 1.73 ± 0.78 points ( t = 10.33, P < 0.001), with 10 (38.5%) patients achieving IGA PN-S 0/1; pruritus NRS scores decreased from 5.00 (5.00, 6.00) points at baseline to 2.00 (1.00, 3.00) points ( Z = -3.82, P < 0.001), with 10 (38.5%) patients achieving a ≥ 4-point reduction in NRS scores. At week 40, 7 patients who continued treatment achieved complete remission. Univariate logistic regression showed that head/face involvement ( OR = 7.000, 95% CI: 1.200 - 40.829) and disease duration of < 1 year ( OR = 7.000, 95% CI: 1.200 - 40.829) were associated with better treatment response, while baseline IGA scores of 4 points predicted poorer outcomes ( OR = 0.114, 95% CI: 0.017 - 0.742). During treatment, conjunctivitis and local infection occurred in 2 cases without discontinuation, and no serious adverse events occurred in any of the cases. Conclusions:Dupilumab demonstrated rapid and sustained efficacy in pediatric PN with a favorable safety profile. Head/face involvement, shorter disease duration, and lower baseline severity were associated with better treatment response.

Objective:To analyze the clinical features and risk factors for renal injury in children with antineutrophil cytoplasmic antibody (ANCA)-positive IgA vasculitis (IgAV).Methods:A case-control study was conducted. Seventy-two ANCA-positive IgAV children hospitalized at the Children′s Hospital of Chongqing Medical University from January 2017 to October 2022 were enrolled as the ANCA-positive group. Propensity score matching (1∶4) using the nearest neighbor was performed with age and gender as covariate, and 288 cases ANCA-negative IgAV children were included as the ANCA-negative group. Patients with renal injury were named ANCA-positive IgAV nephritis (IgAVN) group and ANCA-negative IgAVN group, respectively. The ANCA-positive IgAVN group was further divided into myeloperoxidase (MPO) group and proteinase 3 (PR3) group based on the type of ANCA. Clinical data including manifestations, laboratory tests, renal injury, and prognosis were collected. Comparisons between groups were performed using independent sample t-tests, Mann-Whitney U tests, χ2 tests, or Fisher′s exact tests. Kaplan-Meier curves were used to assess differences in the time to renal injury onset, and multivariate logistic regression was performed to identify independent risk factors for renal injury. Results:Among the 72 ANCA-positive IgAV children (41 males, 31 females, age of 7.7 (5.3, 11.2) years), no significant difference in age or gender was observed compared to the ANCA-negative group (both P>0.05). The ANCA-positive group had higher IgM levels, a higher incidence of recurrent rash, and shorter thrombin time (all P<0.05). Among children with renal injury, the ANCA-positive group showed significant differences in the incidence of hematuria, clinical classification, and grade A prognosis compared to the ANCA-negative group (all P<0.05), but no difference was found in the time to renal involvement onest or renal pathology (all P>0.05). The MPO group had higher rates of microscopic hematuria, gross hematuria, acute renal insufficiency, glomerular sclerosis, and grade B prognosis compared to the ANCA-negative IgAVN group (all P<0.05), with a later onset of renal involvement ( P<0.05). Elevated serum creatinine ( OR=1.08, 95% CI 1.03-1.14) and shortened thrombin time ( OR=0.71, 95% CI 0.55-0.92) were independent risk factors for renal injury in ANCA-positive IgAV children (all P<0.05). Conclusions:Children with ANCA-positive IgAV are more likely to experience recurrent rash. MPO-ANCA-positive IgAVN children have higher risks of hematuria, acute kidney injury and glomerular sclerosis, with later-onset but poorer renal prognosis compared to ANCA-negative IgAVN children. Higher serum creatinine levels and shorter thrombin time may be associated with renal injury in children with ANCA-positive IgAV.

Osteoporotic fractures(OPF) refer to the fractures caused by minor violence in the state of osteoporosis, seriously threatening the life and health of elderly patients. Drug and surgical therapies have limitations such as single targets, diverse adverse reactions, and poor prognosis. Kidney-tonifying traditional Chinese medicine(TCM) has good potential in the treatment of OPF. TCM can promote the healing of OPF by promoting angiogenesis in the early stage of bone healing, promoting osteogenic differentiation of bone marrow mesenchymal stem cells in the stage of bone repair, maintaining the balance of osteogenic and osteoclastic system in the stage of bone remodeling, and regulating the oxidative stress responses throughout the process of OPF healing. TCM can alleviate the pathological state of osteoporosis and promote fracture healing in OPF patients via multiple pathways and targets, demonstrating the advantages and potential of biphasic regulation.
Humans ; Drugs, Chinese Herbal/therapeutic use* ; Osteoporotic Fractures/metabolism* ; Animals ; Fracture Healing/drug effects* ; Medicine, Chinese Traditional ; Kidney/metabolism* ; Osteogenesis/drug effects*

With the rapid development of generative artificial intelligence(GAI)technologies,their widespread application in academic research and writing is continuously expanding the boundaries of sci-entific inquiry.However,this trend has also raised a series of ethical and regulatory challenges,inclu-ding issues related to authorship,content authenticity,citation accuracy,and accountability.In light of the growing involvement of AI in generating academic content,establishing an open,controllable,and trustworthy ethical governance framework has become a key task for safeguarding research integrity and maintaining trust within the academic community.This expert consensus outlines ethical requirements across key stages of AI-assisted academic writing-including topic selection,data management,citation practices,and authorship attribution.It aims to clarify the boundaries and ethical obligations surrounding AI use in academic writing,ensuring that technological tools enhance efficiency without compromising in-tegrity.The goal is to provide guidance and institutional support for building a responsible and sustainable research ecosystem.

Immunometabolism studies focus on the relationships between immune cell functions and cellular energy metabolism pathways.Immunometabolism plays an important regulatory role in immune-related diseases.Mycobacterium tuberculosis(M.tb),an important intracellular pathogenic bacterium,enters alveolar macrophages after infection.The confrontation between M.tb and the host is a complex and dynamic process involving multiple aspects and mechanisms,such as the immune response,granuloma formation,and immune evasion.M.tb effector proteins play key roles in maintaining bacterial virulence and regulating host cell metabolism.This article reviews the reprogramming process of glucose metabolism,lipid metabolism,and immunometabolism,as well as changes in mi-tochondrial function in M.tb-infected host cells,thereby revealing the relationship between M.tb pathogenicity and host metabolic regu-lation,which is important for understanding tuberculosis.

Objective To investigate the feasibility of magnetic tracer technique for locating pulmonary nodules.Methods A tracer magnet and a matching puncture instrument were designed by ourselves for locating pulmonary nodules.After preliminarily verifying the feasibility of the operation in the isolated lung,four beagle dogs were used as animal models to perform puncture localization of the assumed lesions in the upper lobe of the right lung under the guidance of X-ray by using self-designed tracer magnets and puncture instruments,and the positioning effect was observed and evaluated after thorax opening.The operation time required for the tracer magnet implantation,whether there is bleeding at the puncture site,whether the tracer magnet is displaced,and the positioning time of pulmonary nodules after thorax opening were recorded.Results Two tracer magnets were successfully inserted into the upper lobe of the right lung under X-ray guidance in four beagle dogs,and the magnets were successfully attracted and fixed.The median insertion time of the tracer magnet was 5 minutes(4 to 7 minutes),and the insertion process was smooth without bleeding at the puncture site.After thorax opening,oval forceps were used to conveniently locate the location of the tracer magnet,achieving accurate positioning of pulmonary nodules with a median positioning time of 13 seconds(10 to 17 seconds),and the tracer magnet did not shift during the whole process.Conclusion The magnetic tracer technique is simple to operate and pricise for localization of pulmonary nodules.With further optimization of the operation process,this technique is expected to be applied in clinic.

Objective:To evaluate the clinical efficacy and safety of dupilumab in the treatment of pediatric prurigo nodularis (PN), and to explore factors associated with the treatment response.Methods:A retrospective analysis was conducted on clinical data from 26 children with PN who received dupilumab treatment at the Institute of Dermatology and Venereology, Sichuan Provincial People's Hospital between December 2022 and January 2025. Primary efficacy endpoints were the proportion of patients achieving investigator's global assessment-activity (IGA PN-A) and stage (IGA PN-S) scores of 0/1 at week 8; secondary efficacy endpoints included the proportion of patients achieving a ≥ 4-point reduction in the pruritus numerical rating scale (NRS) and changes in laboratory parameters. Paired t tests or Wilcoxon signed-rank tests were used for pre- and post-treatment comparisons; generalized estimating equation models were applied to evaluate changes in eczema area and severity index (EASI) scores over time; univariate logistic regression analysis was performed to calculate odds ratios ( ORs) and 95% confidence intervals ( CIs) to analyze factors influencing efficacy. Results:Among the 26 children with PN, 14 (53.8%) were males and 12 (46.2%) were females, with ages ( M[ Q1, Q3]) of 4.50 (3.00, 9.25) years and disease duration of 1.00 (0.48, 2.25) years. Twenty-four (92.3%) patients had comorbid atopic diseases, including 17 with allergic rhinitis and 15 with atopic dermatitis (AD). At week 8, IGA PN-A scores decreased from 3.27 ± 0.53 points at baseline to 1.31 ± 0.84 points ( t = 10.44, P < 0.001), with 16 (61.5%) patients achieving IGA PN-A 0/1; IGA PN-S scores decreased from 3.15 ± 0.46 points at baseline to 1.73 ± 0.78 points ( t = 10.33, P < 0.001), with 10 (38.5%) patients achieving IGA PN-S 0/1; pruritus NRS scores decreased from 5.00 (5.00, 6.00) points at baseline to 2.00 (1.00, 3.00) points ( Z = -3.82, P < 0.001), with 10 (38.5%) patients achieving a ≥ 4-point reduction in NRS scores. At week 40, 7 patients who continued treatment achieved complete remission. Univariate logistic regression showed that head/face involvement ( OR = 7.000, 95% CI: 1.200 - 40.829) and disease duration of < 1 year ( OR = 7.000, 95% CI: 1.200 - 40.829) were associated with better treatment response, while baseline IGA scores of 4 points predicted poorer outcomes ( OR = 0.114, 95% CI: 0.017 - 0.742). During treatment, conjunctivitis and local infection occurred in 2 cases without discontinuation, and no serious adverse events occurred in any of the cases. Conclusions:Dupilumab demonstrated rapid and sustained efficacy in pediatric PN with a favorable safety profile. Head/face involvement, shorter disease duration, and lower baseline severity were associated with better treatment response.

Objective To investigate the feasibility of magnetic tracer technique for locating pulmonary nodules.Methods A tracer magnet and a matching puncture instrument were designed by ourselves for locating pulmonary nodules.After preliminarily verifying the feasibility of the operation in the isolated lung,four beagle dogs were used as animal models to perform puncture localization of the assumed lesions in the upper lobe of the right lung under the guidance of X-ray by using self-designed tracer magnets and puncture instruments,and the positioning effect was observed and evaluated after thorax opening.The operation time required for the tracer magnet implantation,whether there is bleeding at the puncture site,whether the tracer magnet is displaced,and the positioning time of pulmonary nodules after thorax opening were recorded.Results Two tracer magnets were successfully inserted into the upper lobe of the right lung under X-ray guidance in four beagle dogs,and the magnets were successfully attracted and fixed.The median insertion time of the tracer magnet was 5 minutes(4 to 7 minutes),and the insertion process was smooth without bleeding at the puncture site.After thorax opening,oval forceps were used to conveniently locate the location of the tracer magnet,achieving accurate positioning of pulmonary nodules with a median positioning time of 13 seconds(10 to 17 seconds),and the tracer magnet did not shift during the whole process.Conclusion The magnetic tracer technique is simple to operate and pricise for localization of pulmonary nodules.With further optimization of the operation process,this technique is expected to be applied in clinic.

With the rapid development of generative artificial intelligence(GAI)technologies,their widespread application in academic research and writing is continuously expanding the boundaries of sci-entific inquiry.However,this trend has also raised a series of ethical and regulatory challenges,inclu-ding issues related to authorship,content authenticity,citation accuracy,and accountability.In light of the growing involvement of AI in generating academic content,establishing an open,controllable,and trustworthy ethical governance framework has become a key task for safeguarding research integrity and maintaining trust within the academic community.This expert consensus outlines ethical requirements across key stages of AI-assisted academic writing-including topic selection,data management,citation practices,and authorship attribution.It aims to clarify the boundaries and ethical obligations surrounding AI use in academic writing,ensuring that technological tools enhance efficiency without compromising in-tegrity.The goal is to provide guidance and institutional support for building a responsible and sustainable research ecosystem.

Immunometabolism studies focus on the relationships between immune cell functions and cellular energy metabolism pathways.Immunometabolism plays an important regulatory role in immune-related diseases.Mycobacterium tuberculosis(M.tb),an important intracellular pathogenic bacterium,enters alveolar macrophages after infection.The confrontation between M.tb and the host is a complex and dynamic process involving multiple aspects and mechanisms,such as the immune response,granuloma formation,and immune evasion.M.tb effector proteins play key roles in maintaining bacterial virulence and regulating host cell metabolism.This article reviews the reprogramming process of glucose metabolism,lipid metabolism,and immunometabolism,as well as changes in mi-tochondrial function in M.tb-infected host cells,thereby revealing the relationship between M.tb pathogenicity and host metabolic regu-lation,which is important for understanding tuberculosis.