Objective To explore the role and mechanism of HJT-sRNA-m7(M7)bencaosome in a silicosis mouse model.Methods C57BL/6J mice were randomly divided into four groups:blank,control,negative control(NC)oligonucleotide,and M7 treatment(HJT-sRNA-m7 bencaosome)groups.After three rounds of pretreatment with HJT-sRNA-m7 bencaosome,all groups except the blank one were modeled via a single intratracheal exposure.Each mouse received 50 μL of a silica suspension at a dose of 200 mg/kg body weight via intratracheal instillation.From day 6 to day 26,the bencaosome was administered every other day via oral gavages.On day 28,pulmonary function tests were performed.Bronchoalveolar lavage fluid was collected for flow cytometry and cytokine analysis.The left lung was harvested for histopathological examination and Masson's trichrome staining to evaluate collagen fiber dep-osition.The right lung was used for hydroxyproline quantification to assess collagen accumulation.Results The re-sults of pulmonary function test,pathological analysis and hydroxyproline measurements all indicated that M7 ben-caosome treatment significantly alleviated silica-induced pulmonary fibrosis.Moreover,flow cytometry analysis of BALF confirmed that M7 bencaosome inhibited the silica-induced inflammatory response,that was supported by cy-tokine analysis.Conclusions HJT-sRNA-m7 bencaosome is quite effective to treat silicosis and inhibits mitigating pulmonary fibrosis progression in mouse models.

Hyperphenylalaninemia (HPA) is an inherited metabolic disorder caused by deficiency of phenylalanine hydroxylase, characterized by significantly elevated phenylalanine levels. Conventional mechanisms, such as neurotransmitter deficiency and dysmyelination, fail to fully explain the progressive neurological damages associated with HPA. Meanwhile, ferroptosis, an emerging form of iron-dependent regulated cell death, has proven to play an important role in neurodegenerative diseases. We hereby propose a hypothesis that tetrahydrobiopterin (BH4) depletion in HPA may lead to the collapse of intracellular antioxidant defenses. This process could induce ferroptosis, thereby serving as a pivotal mechanism underlying HPA-related neurological injury. This review has systematically summarized the pathological mechanisms of HPA, the biological features of ferroptosis, and the bridging role of BH4 between them, thereby establishing a novel "HPA-BH4-ferroptosis" theoretical framework and providing a rationale for developing new therapeutic strategies targeting ferroptosis.
Ferroptosis ; Humans ; Biopterins/deficiency* ; Phenylketonurias/pathology* ; Animals

Objective To construction and investigate the application effect of auricular acupressure technology in patients with cough with different syndrome types.Methods From December 2022 to March 2023,the Delphi method was used to consult experts to form a technical scheme for auricular pressure in patients with cough with different syndrome types in the early and middle stages.122 patients with stage Ⅰ and stage Ⅱ lung cancer cough from the oncology department of 3 tertiary hospitals of Traditional Chinese Medicine in Beijing between July 2023 to January 2024 were randomly divided into an experimental group(61 cases)and a control group(61 cases).The experimental group referred to the constructed auricular acupressure technique program to identify and take acupoints,and the control group used the original auricular acupressure program for 7 d of continuous intervention.The changes in the scores of the Visual Analog Scale(VAS)and the scores of The MD Anderson Symptom Inventory for lung cancer(MDASI-LC)were observed in the 2 groups before and after the intervention.Results The final scheme included 3 first-level items,12 second-level items,and 14 third-level items.The 2 rounds of expert authority coefficients were 0.88,indicating a high degree of authority,and the Kendall harmony coefficients of the 2 rounds of correspondence were 0.170 and 0.130(P＜0.001),respectively,and the results tended to be consistent.A total of 122 patients completed the study.After intervention,the VAS score of cough severity in the experimental group was 3.0(2.0,3.0)points,which was lower than 3.0(3.0,4.0)points in the control group.The MDASI-LC score of the experimental group was 17.0(9.5,31.5)points,which was lower than 28.0(15.5,47.5)points in the control group,and the difference was statistically significant(P＜0.05).Conclusion The constructed auricular acupressure technique program has certain scientificity,and it can effectively relieve cough symptoms of stage Ⅰ～Ⅱ lung cancer patients,and the severity of symptom clusters has been improved,which provides the basis for TCM nursing intervention in cough symptoms of lung cancer patients.

As another major measure to accelerate the pace of medical and health system reform and benefit people's health,"one hospital with multiple campuses"has important practical significance for building a high-quality and efficient medical and health service system.How to achieve standardized,high-quality and sustainable multi hospital development,collaborative governance is the key.Based on the perspective of collaborative governance,through the analysis of the difficulties in the construction of"one hospital with multiple campuses",it is found that the positioning of"one hospital with multiple campuses"remains to be clarified,the cost-benefit balance is under pressure,and the collaborative management efficiency is insufficient.It is proposed that the party's leadership should be strengthened,the government's leading responsibility should be implemented,the institutional setting should be strictly standardized,the development scale should be reasonably controlled,the functional positioning objectives should be clear,the dislocation collaborative development should be promoted,the unified operation system should be improved,the management efficiency level should be improved,the talent recruitment mechanism should be optimized,the training and development system and the quality control system should be improved,the medical homogeneous development should be promoted,and the"three relationships"should be comprehensively grasped.

Zishen Huoxue decoction (ZSHX) enhances cardiomyocyte viability following hypoxic stress; however, its upstream therapeutic targets remain unclear. Network pharmacology and RNA sequencing analyses revealed that ZSHX target genes were closely associated with mitophagy and apoptosis in the mitochondrial pathway. In vitro, ZSHX inhibited pathological mitochondrial fission following hypoxic stress, regulated FUN14 domain-containing protein 1 (FUNDC1)-related mitophagy, and increased the levels of mitophagy lysosomes and microtubule-associated protein 1 light chain 3 beta II (LC3II)/translocase of outer mitochondrial membrane 20 (TOM20) expression while inhibiting the over-activated mitochondrial unfolded protein response. Additionally, ZSHX regulated the stability of beta-tubulin through Sirtuin 5 (SIRT5) and could modulate FUNDC1-related synergistic mechanisms of mitophagy and unfolded protein response in the mitochondria (UPR^mt) via the SIRT5 and -β-tubulin axis. This targeting pathway may be crucial for cardiomyocytes to resist hypoxia. Collectively, these findings suggest that ZSHX can protect against cardiomyocyte injury via the SIRT5-β-tubulin axis, which may be associated with the synergistic protective mechanism of SIRT5-β-tubulin axis-related mitophagy and UPR^mt on cardiomyocytes.
Mitophagy/drug effects* ; Tubulin/genetics* ; Animals ; Myocytes, Cardiac/metabolism* ; Drugs, Chinese Herbal/pharmacology* ; Sirtuins/genetics* ; Unfolded Protein Response/drug effects* ; Myocardial Ischemia/genetics* ; Rats ; Humans ; Rats, Sprague-Dawley ; Apoptosis/drug effects* ; Male

Objective This study aims to achieve high-yield functional expression of the human voltage-gated potassium channel K_V3.1 using an Escherichia coli cell-free protein synthesis system, thereby providing a novel synthetic approach for drug screening, structural analysis and functional characterization of K_V3.1. Methods K_V3.1 was expressed in an Escherichia coli cell-free protein synthesis system for 10 hours in the presence of peptide surfactant A₆K. The secondary structure of K_V3.1 was analyzed by circular dichroism spectroscopy. The potassium channel activity of the recombinant protein liposome K_V3.1-A₆K was investigated using fluorescent dyes Oxonol VI as indicators, which are capable of reflecting alterations in membrane potential. Results Soluble K_V3.1 protein was successfully synthesized, achieving a purified yield of up to 1.2 mg/mL via an Escherichia coli cell-free protein synthesis system. Circular dichroism spectroscopy revealed that K_V3.1 exhibited characteristic α-helical secondary structures. Membrane potential fluorescence assays demonstrated that the K_V3.1-A₆K proteoliposomes, which were reconstructed with surfactant peptide A₆K, exhibited remarkable potassium ion permeability. Conclusion This study successfully achieved high-yield expression of human K_V3.1 with activity using an Escherichia coli-based cell-free protein synthesis system. This innovative method not only significantly enhances the expression yield of K_V3.1, but also maintains its functional activity, thereby establishing a novel and efficient synthetic platform for drug screening and advancing our understanding of structure-function relationships in K_V3.1 research.
Humans ; Escherichia coli/metabolism* ; Shaw Potassium Channels/biosynthesis* ; Cell-Free System ; Circular Dichroism ; Protein Biosynthesis ; Recombinant Proteins/metabolism* ; Membrane Potentials ; Shab Potassium Channels

Objective:To investigate the operation opportunity for vascular rings in infants and assess the impact of prenatal and postnatal integrated management strategies on treatment outcomes.Methods:A retrospective analysis was conducted on the clinical data of 75 infants with vascular rings who underwent surgical treatment at the Third Affiliated Hospital of Zhengzhou University from January 2016 to December 2023. Among them, 54 were males and 21 were females, with a median age at surgery of 1.7 (0.7-6.9) months and a median weight of 5.3 (3.5-8.0) kg. Vascular rings malformation was diagnosed by real-time three-dimensional color doppler echocardiography during pregnancy in 51 cases. Preoperatively, 28 cases presented with respiratory or digestive system-related symptoms, and 26 cases had a history of hospitalization due to related symptoms. All patients underwent preoperative cardiac CTA+ CTVE and three-dimensional reconstruction examinations, and 56 cases showed varying degrees of airway compression and stenosis on imaging. Among them, 10 patients presented with preoperative stridor and respiratory distress; fiberoptic bronchoscopy performed after anesthesia induction confirmed significant tracheal compression/stenosis. One patient was ventilator-dependent preoperatively, and bronchoscopy revealed main bronchomalacia. The cohort included: Complete vascular rings (62 cases of double aortic arch, 10 cases of right aortic arch with aberrant left subclavian artery and left-sided ductus arteriosus/ligamentum) and incomplete vascular rings (3 cases of pulmonary artery sling). Additionally, 5 cases had associated Kommerell’s diverticulum, and 12 had intracardiac malformation. All patients successfully completed surgery, and those with intracardiac malformation underwent extracorporeal circulation and primary radical surgery concurrently. Based on prenatal diagnosis and implementation of prenatal and postnatal integrated management, patients were divided into an observation group (prenatal and postnatal integrated management group) and a control group (postnatally diagnosed group). The perioperative data of the two groups were compared to analyze the surgical outcomes and the advantages of prenatal and postnatal integrated treatment.Results:All 75 patients successfully completed surgery. Preoperatively, 56 cases (74.66%) presented with varying degrees of tracheal stenosis. Except for 1 case that died after abandoning treatment and 1 case that underwent tracheal surgery due to repeated failed ventilator weaning, all other patients were successfully discharged from the hospital. The overall mortality rate was 1.33%, and the rate of tracheal surgery was 1.35%. The age and weight at surgery in the observation group were lower than those in the control group ( P<0.05), and the proportion of preoperative hospitalization history was lower in the observation group ( P<0.05). No significant differences were observed between the two groups in terms of tracheal compression and stenosis, postoperative monitoring time, operation time, ventilator time, and risk of postoperative complications ( P>0.05). Conclusion:Tracheal stenosis is a common complication in children with vascular rings. Early surgical intervention is recommended for complete vascular rings and pulmonary artery slings (as an incomplete ring). Timely prenatal diagnosis of vascular ring anomalies combined with the implementation of an integrated prenatal-postnatal management strategy can significantly reduce the risk of preoperative hospitalization due to related symptoms and may lower the risk of subsequent tracheal surgery, potentially improving long-term prognosis.

Objective:To learn about the levels of 25-hydroxy vitamin D (25-OH VD), TBNK lymphocyte subsets, and cytokines in peripheral blood of patients with brucellosis.Methods:A prospective design was adopted, one hundred patients with brucellosis admitted to the Department of Infectious Diseases, Beidahuang Industry Group General Hospital from May 2024 to February 2025 were selected as the brucellosis group, and one hundred healthy individuals who underwent physical examinations at the hospital during the same period were selected as the control group. The peripheral blood 25-OH VD levels were detected by chemiluminescence method. Further, 100 patients with brucellosis were divided into a brucellosis combined with osteoarthritis group (74 cases) and a brucellosis without osteoarthritis group (26 cases). Flow cytometry was used to detect the counts of peripheral blood TBNK lymphocyte subsets and cytokine levels. Meanwhile, Spearman rank correlation was used to analyze the correlation between peripheral blood 25-OH VD levels and TBNK lymphocyte subsets counts as well as cytokine levels in patients with brucellosis complicated by osteoarthritis.Results:The peripheral blood 25-OH VD level in the brucellosis group [20.31 (15.74, 24.35) ng/ml] was significantly lower than that of the control group [25.18 (21.13, 29.59) ng/ml], and the difference was statistically significant ( Z = - 5.07, P < 0.001). The peripheral blood 25-OH VD level [18.05 (13.79, 23.74) vs 22.43 (19.93, 28.25) ng/ml], CD4 + T cell count [(860 ± 275) vs (1 036 ± 376) cells/μl], and interleukin (IL)-6 levels [4.17 (2.14, 9.41) vs 7.83 (5.97, 11.34) ng/L] in the brucellosis combined with osteoarthritis group were significantly lower than those in the brucellosis without osteoarthritis group ( Z/t = - 2.88, 2.20, - 2.85, P = 0.004, 0.035, 0.004). Correlation analysis showed that the peripheral blood 25-OH VD level in patients with brucellosis complicated by osteoarthritis was positively correlated with the counts of CD45 +, CD3 + T, CD4 + T, CD8 + T, and natural killer cells ( r = 0.31, 0.26, 0.25, 0.25, 0.25, P = 0.007, 0.027, 0.032, 0.031, 0.032), and negatively correlated with IL-17A level ( r = - 0.40, P < 0.001). Conclusion:Patients with brucellosis have insufficient 25-OH VD, and those with osteoarthritis have lower 25-OH VD level, CD4 + T cell count, and IL-6 level than those without osteoarthritis.

To further improve the post competency of application-oriented medical students, the university medical simulation center, clinical teaching base, and off-campus social practice base were linked to establish a platform. Four key points were used to explore a new training model of "one body and four bases" for application-oriented medical students. This includes problem-oriented theoretical teaching to improve the professional knowledge of medical students, hands-on practice-oriented experimental teaching to improve the clinical skills, "strengthening clinical thinking training"-oriented practice in the base to enhance clinical awareness and cultivate clinical habits, and "cultivating humanistic literacy"-oriented off-campus social practice base to improve the humanistic sentiment and professional spirit of medical students. This teaching mode lays a foundation for training high-quality application-oriented medical talents with solid knowledge and skills and comprehensive development of ability and literacy, and provides a reference for teaching and research in similar colleges and universities.

Objective:To explore the mediating effect of illness acceptance between self-compassion and rehabilitation motivation in stroke patients with partial disability.Methods:By convenience sampling method, stroke patients who attended the neurology outpatient clinic of Xinxiang Central Hospital from February to December 2024 were selected as the research subjects. The General Information Questionnaire, Self-Compassion Scale (SCS), Chinese version of Acceptance of Illness Scale (AIS-CHI), and Stroke Rehabilitation Motivation Scale (SRMS) were used for the survey. Pearson correlation analysis was applied to analyze the relationships among self-compassion, illness acceptance, and rehabilitation motivation. AMOS 21.0 software was used to establish a structural equation model and verify the mediating effect.Results:A total of 300 questionnaires were distributed, and 289 valid ones were recovered, with an effective recovery rate of 96.33%. Among the 289 stroke patients with partial disability, the total score of SCS was (65.73±5.50), the total score of AIS-CHI was (17.46±5.62), and the total score of SRMS was (77.18±10.97). Pairwise positive correlations were found between self-compassion, illness acceptance, and rehabilitation motivation (all P<0.05). Self-compassion had a direct positive effect on rehabilitation motivation ( β=0.328, P<0.01) and a direct positive effect on illness acceptance ( β=0.439, P<0.01). Illness acceptance played a partial mediating role between self-compassion and rehabilitation motivation, and the mediating effect accounted for 31.38% of the total effect (0.150/0.478) . Conclusions:The levels of self-compassion, illness acceptance, and rehabilitation motivation in stroke patients with partial disability need to be further improved. Illness acceptance exerts a partial mediating effect between self-compassion and rehabilitation motivation. Clinically, the rehabilitation motivation of patients can be enhanced by improving their levels of self-compassion and illness acceptance.