1.Mechanism of Buyang Huanwutang in Inhibiting Ferroptosis and Enhancing Neurological Function Recovery After Spinal Cord Injury via GPX4-ACSL4 Axis
Luchun XU ; Guozheng JIANG ; Yukun MA ; Jiawei SONG ; Yushan GAO ; Guanlong WANG ; Jiaojiao FAN ; Yongdong YANG ; Xing YU ; Xiangsheng TANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(5):20-30
ObjectiveTo explore the mechanism by which Buyang Huanwutang regulates the glutathione peroxidase 4 (GPX4)-acyl-CoA synthetase long-chain family member 4 (ACSL4) axis to inhibit ferroptosis and promote neurological functional recovery after spinal cord injury (SCI). MethodsNinety rats were randomly divided into five groups: sham operation group, model group, low-dose Buyang Huanwutang group (12.5 g·kg-1), high-dose Buyang Huanwutang group (25 g·kg-1), and Buyang Huanwutang + inhibitor group (25 g·kg-1 + 5 g·kg-1 RSL3). The SCI model was established by using the allen method. Tissue was collected on the 7th and 28th days after operation. Motor function was assessed by using the Basso-Beattie-Bresnahan (BBB) scale. Hematoxylin-eosin (HE), Nissl, and Luxol fast blue (LFB) staining were performed to observe spinal cord histopathology. Transmission electron microscopy was used to examine mitochondrial ultrastructure. Immunofluorescence staining was used to detect the number of NeuN-positive cells and the fluorescence intensity of myelin basic protein (MBP), GPX4, and ACSL4. Real-time fluorescent quantitative polymerase chain reaction (Real-time PCR) was used to analyze the mRNA expression of GPX4 and ACSL4. Enzyme linked immunosorbent assay (ELISA) was performed to measure the levels of reactive oxygen species (ROS), malondialdehyde (MDA), glutathione (GSH), and superoxide dismutase (SOD). Colorimetric assays were used to determine the iron content in spinal cord tissue. ResultsCompared to the sham operation group, the model group exhibited significantly reduced BBB scores (P<0.01), severe pathological damage in spinal cord tissue, and marked mitochondrial ultrastructural disruption. In addition, the model group showed a decrease in the number of NeuN-positive cells (P<0.01), reduced fluorescence intensity of MBP and GPX4 (P<0.01), lower levels of GSH and SOD (P<0.01), and downregulated mRNA expression of GPX4 (P<0.01). Moreover, compared to the sham operation group, the model group had elevated levels of ROS, MDA, and tissue iron content (P<0.01), along with increased fluorescence intensity and mRNA expression of ACSL4 (P<0.01). Compared with the model group and Buyang Huanwutang + inhibitor group, the Buyang Huanwutang group showed significantly improved BBB scores (P<0.05, P<0.01) and exhibited less severe spinal cord tissue damage, reduced edema and inflammatory cell infiltration, increased neuronal survival, and more intact myelin structures. Additionally, mitochondrial ultrastructure was significantly improved in the Buyang Huanwutang group. Compared to the model group and Buyang Huanwutang + inhibitor group, the Buyang Huanwutang group significantly increased the number of NeuN-positive cells and the fluorescence intensity of MBP (P<0.05, P<0.01). Furthermore, Buyang Huanwutang significantly increased the fluorescence intensity and mRNA expression of GPX4 (P<0.01) and decreased the fluorescence intensity and mRNA expression of ACSL4 (P<0.01) compared to the model group and Buyang Huanwutang + inhibitor group. Finally, the Buyang Huanwutang group significantly decreased ROS, MDA, and tissue iron content (P<0.01) and significantly increased GSH and SOD levels (P<0.01) compared to the model group and Buyang Huanwutang + inhibitor group. ConclusionBuyang Huanwutang inhibits ferroptosis through the GPX4/ACSL4 axis, reduces secondary neuronal and myelin injury and oxidative stress, and ultimately promotes the recovery of neurological function.
2.Application of utricle function testing in different clinical stages of Meniere’s disease
Yuanling LI ; Xiaofei LI ; Yongdong SONG ; Yafeng LÜ ; Yueling CHEN ; Daogong ZHANG
Chinese Journal of Clinical Medicine 2025;32(2):171-176
Objective To explore the role of ocular vestibular evoked myogenic potential (oVEMP) and unilateral centrifugation subjective visual vertical (UC-SVV) tests in evaluating the utricular function of patients with Meniere’s disease (MD) at different clinical stages. Methods A total of 97 unilateral MD patients at Shandong Provincial ENT Hospital from July 2019 to September 2021 were selected. All patients underwent oVEMP, UC-SVV, and pure tone audiometry tests. MD patients were classified into clinical stages 1, 2, 3, and 4, with stages 1 and 2 defined as early stage and stages 3 and 4 as late stage. The results of utricular function tests (abnormal rates of oVEMP, UC-SVV, and oVEMP+UC-SVV) were compared among patients at different stages. Spearman correlation analysis was used to evaluate the correlation between utricular function and clinical staging. Results Among the 97 MD patients, the abnormal rate of oVEMP was 66.0% (64/97), and the abnormal rate of UC-SVV was 55.7% (54/97). The abnormal rates of oVEMP and oVEMP+UC-SVV in early-stage patients were significantly lower than those in late-stage patients (P<0.05), while the difference in UC-SVV abnormal rates between the two groups was not statistically significant. Intra-group comparisons showed that the abnormal rate of oVEMP+UC-SVV in stage 1 patients was significantly lower than that in stage 2 patients (P<0.05), without significant difference in the other indices. There were no significant differences among the three indices in stages 3 and 4 patients. Spearman correlation test results indicated that the abnormal rate of oVEMP (r=0.336, P=0.001) and the abnormal rate of oVEMP+UC-SVV (r=0.301, P=0.003) were weakly positively correlated with clinical staging, while there was no correlation between the abnormal rate of UC-SVV and clinical staging (r=0.022, P=0.832). Conclusions Both oVEMP and UC-SVV tests can assess utricular function in MD patients at different clinical stages. Their combination is helpful of early-stage (stages 1 and 2) MD diagnosis.
3.Analysis on current situation of position training of clinical pharmacists in medical institutions in China
Dongni ZHENG ; Ya CHEN ; Mi GAN ; Shunlong OU ; Yongdong JIN ; Zhiqiang HU ; Xiaoyi CHEN ; Jinqi LI ; Qian JIANG
China Pharmacy 2025;36(12):1424-1429
OBJECTIVE To summarize the current status of position training for clinical pharmacists in China and provide references for the continuous optimization of such training programs. METHODS SinoMed, CNKI,VIP and Wanfang Data were electronically searched to collect position training of clinical pharmacists studies from the inception until November 5th 2024. After data extraction and quality evaluation, descriptive analysis was performed on the results of the included studies. RESULTS & A total of 68 pieces of relevant literature were included in the study. Among them, 50 studies reported on training content, 49 involved the allocation of teaching resources in the bases, 48 addressed training methods, and 39 focused on training evaluation; only 2 studies mentioned faculty development. There were notable variations in the clinical pharmacist training programs across different bases, particularly in the allocation of teaching resources, such as the composition of the teaching team and the utilization of auxiliary teaching tools. Additionally, differences existed in training approaches, such as those employing a single method versus a blended approach. Conversely, the core training content of each base generally revolved around clinical pharmacy practice, demonstrating a degree of consistency. Moreover, the overall emphasis on teacher training and assessment tended to be obviously insufficient. Each base can focus on enhancing the competence of clinical pharmacists by allocating teaching resources, selecting training methods, improving training content, and using evaluation tools, to further enhance the quality of clinical pharmacist training.
4.A Novel Functional Method of Protector Screening for Zebrafish Lateral Line Hair Cells via the Acoustic Escape Response.
Ling ZHENG ; Qiaosen SHEN ; Tong ZHAO ; Qingsong LIU ; Zihao HUANG ; Feng ZHAO ; Mengqian ZHANG ; Yongdong SONG ; Daogong ZHANG ; Dong LIU ; Fangyi CHEN
Neuroscience Bulletin 2025;41(9):1537-1552
Zebrafish larvae are useful for identifying chemicals against lateral line (LL) hair cell (HC) damage and this type of chemical screen mainly focuses on searching for protectors against cell death. To expand the candidate pool of HC protectors, a self-built acoustic escape response (AER)-detecting system was developed to apply both low-frequency near-field sound transmission and AER image acquisition/processing modules. The device quickly confirmed the changed LL HC functions caused by most known ototoxins, protectors, and neural transmission modifiers, or knockdown of LL HC-expressing genes. With ten devices wired in tandem, five 'hit' chemicals were identified from 124 cyclin-dependent kinase inhibitors to partially restore cisplatin-damaged AER in less than a day. AS2863619, ribociclib, and SU9516 among the hits, protected the HCs in the mouse cochlea. Therefore, using free-swimming larval zebrafish, the self-made AER-detecting device can efficiently identify compounds that are protective against HC damage, including cell death and loss-of-function.
Animals
;
Zebrafish
;
Hair Cells, Auditory/physiology*
;
Lateral Line System/cytology*
;
Escape Reaction/physiology*
;
Larva
;
Mice
;
Cisplatin/toxicity*
;
Drug Evaluation, Preclinical/methods*
5.Shewanella biofilm formation regulated by acyl-homoserine lactones and its application in UO22+ electrosorption.
Tingting LIU ; Hong SHU ; Qian LI ; Zhao CUI ; Guangyue LI ; Ting LI ; Yongdong WANG ; Jing SUN
Chinese Journal of Biotechnology 2025;41(8):3081-3097
Shewanella oneidensis MR-1, a Gram-negative bacterium with a significant role in the adsorption and reduction of uranium in wastewater and a quorum-sensing effect, can be used to remove uranium from wastewater. Exogenous signaling molecules (acyl-homoserine lactones, AHLs) can be added to induce the quorum sensing behavior for rapid biofilm formation, thereby improving the removal efficiency of this bacterium for uranium. Extracellular polymeric substances (EPS), as the significant components of biofilm, play a key role in biofilm formation. To investigate the quorum sensing behavior induced by AHLs, we systematically investigated the effects of AHLs on the EPS secretion and biofilm properties of S. oneidensis MR-1 by regulating parameters such as AHL species, concentration, addition time point, and contact time. The results showed that the addition of 10 μmol/L N-butyryl-l-homoserine lactone (C4-HSL) after 6 h of culture and continued incubation to reach the time point of 72 h significantly promoted the secretion of EPSs, in which the content of extracellular proteins and extracellular polysaccharides was increased by 15.2% and 28.2%, respectively, compared with that of the control group. The biofilm electrodes induced by signaling molecules showed superior properties, which were evidenced by an increase of exceeding 20 μm in biofilm thickness, an increase of 33.9% in the proportion of living cells, enhanced electroactivity, and an increase of 10.7% in the uranium removal rate. The biofilm electrode was confirmed to immobilize uranium in wastewater mainly by electrosorption, physicochemical adsorption, and electro-reduction through characterization means such as X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR). This study provides a new technical idea for the efficient recovery of uranium in wastewater and enriches the theoretical system of quorum sensing regulation of electroactive biofilms.
Biofilms/drug effects*
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Acyl-Butyrolactones/pharmacology*
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Quorum Sensing/drug effects*
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Uranium/metabolism*
;
Shewanella/metabolism*
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Adsorption
;
Uranium Compounds/metabolism*
;
Wastewater/chemistry*
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Biodegradation, Environmental
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Extracellular Polymeric Substance Matrix/metabolism*
6.Visualization analysis of hemodialysis water utilization at domestic and international levels based on CiteSpace
Haiyun MA ; Yongdong ZHANG ; Jiawen LIU ; Lu ZHAO ; Chengxia YANG ; Fenfen E ; Rongrong ZHANG ; Li ZHAN
Modern Hospital 2024;24(6):970-976,980
Objective The present study conducted a comprehensive literature review and visualization analysis of both domestic and international research on the utilization of hemodialysis water over the past two decades,aiming to gain insights into the current research status,identify prominent areas of interest,and highlight future development trends in this field,thereby of-fering valuable references for subsequent studies.Methods By employing bibliometric analysis,the relevant literature on hemo-dialysis water usage was retrieved from the Web of Science Core Collection(WoSCC)database and China National Knowledge Network(CNKI)for the period between 2004 and 2024.Subsequently,an in-depth examination of countries,research institu-tions,authors,and keywords associated with these publications was conducted.The visualization map was generated using CiteSpace 6.2.R4 software.Results A total of 3 304 papers were included,with 147 in Chinese and 3 157 in English.Over the past two decades,there has been a consistent upward trend in the number of publications both domestically and international-ly,although the growth rate of domestic literature lags behind that of foreign countries.The United States,China,and Japan rank as the top three countries in terms of publication volume,with the United States exhibiting the highest centrality.Foreign coun-tries tend to form small research groups with close institutional collaborations,while domestic research teams and institutions are relatively dispersed.Currently,foreign research primarily focuses on Fabrication,Ultrafiltration Membranes and Performance;meanwhile,domestic research emphasizes infection control,quality control,and daily maintenance.Conclusion From 2004 to 2024,both domestic and international researchers have consistently focused on water research for hemodialysis.However,China lags behind foreign countries in this field,necessitating enhanced collaboration among nations,institutions,and regions to broad-en the scope and depth of domestic research.
7.Study on association between delay discounting and delay aversion with household activities in adult patients with T2DM
Zhanlin ZHANG ; Xingkui CAI ; Ying YANG ; Yu ZHAO ; Yongdong AN
Chongqing Medicine 2024;53(21):3305-3311
Objective To explore the association between delay discounting and delay aversion with household activities in adult patients with type 2 diabetes mellitus(T2DM).Methods This study was a cross-sectional study.A total of 400 adult patients with T2DM were recruited as the study subjects from the People's Hospital of Linxia Hui Autonomous Prefecture of Gansu Province from February 2023 to June 2023.The face to face survey was conducted to collect the basic data and related information of household activities,delay discounting,delay aversion of the study subjects.The height and weight information was obtained by the phy-sique measurement.The multiple linear regression was adopted to analyze the association between delay dis-counting,delay aversion and the level of household activities.Results After adjusting the sample characteris-tics,the multiple linear regression analysis showed that the delay discounting was negatively correlated with the level of household activities(β=-1.570,95%CI:-3.077 to-0.062),and delay aversion was also nega-tively correlated with the level of household activities(β=-2.442,95%CI:-3.998 to-0.887),and the differences were statistically significant(P<0.05).Conclusion Both higher delay discounting and higher de-lay aversion are associated with lower levels of household activity.Delay discounting and delay aversion could affect the patients with T2DM to participate in household activities.
8.Application value of combined detection of serum NGAL and calprotectin in patients with fracture in early infection after joint replacement surgery
Wei SONG ; Yongdong WU ; Shaofeng LI ; Limei LIANG
International Journal of Laboratory Medicine 2024;45(16):2023-2027
Objective To explore the application value of combined detection of serum neutrophil gelati-nase-associated lipocalin(NGAL)and calprotectin in patients with fracture in early infection after joint re-placement surgery.Methods A total of 206 fracture patients who underwent joint replacement surgery in a hospital from July 2021 to July 2022 were selected as the study objects,and divided into infection group(n=29)and non-infection group(n=177)according to whether infection occurred after joint replacement surgery.Serum NGAL and calprotectin levels were detected by enzyme-linked immunosorbent assay,and the influencing factors of infection after joint replacement surgery in fracture patients were analyzed by multivari-ate Logistic regression.The receiver operating characteristic curve was drawn to analyze the diagnostic efficacy of serum NGAL and calprotectin combined detection in early infection after joint replacement surgery in frac-ture patients.Results The proportion of diabetes mellitus and erythrocyte sedimentation rate(ESR)in infec-tion group were significantly higher than those in non-infection group,while albumin was significantly lower than that in non-infection group,with statistical significance(P<0.05).The levels of serum NGAL and cal-protectin in postoperative infection group were significantly higher than those in postoperative non-infection group,with statistical significance(P<0.05).Serum NGAL,calprotectin,ESR and diabetes mellitus were risk factors for early infection after joint replacement surgery,while serum albumin was protective factor(P<0.05).The area under the curve for the diagnosis of early infection after joint replacement surgery in patients with fracture was 0.838,0.813 and 0.934,respectively,and the combination of serum NGAL,calprotectin,and both were superior to the diagnosis of serum NG AL and calprotectin alone(Z=2.720,2.357,P=0.007,0.018).Conclusion The combined detection of serum NGAL and calprotectin has better diagnostic efficacy for early infection after joint replacement surgery in fracture patients,and has certain application value for clinical prognosis.
9.Non-alcoholic fatty liver degree and long-term risk of incident inflammatory bowel disease: A large-scale prospective cohort study
Qian ZHANG ; Si LIU ; Jing WU ; Shengtao ZHU ; Yongdong WU ; Shanshan WU ; Shutian ZHANG
Chinese Medical Journal 2024;137(14):1705-1714
Background::Non-alcoholic fatty liver disease (NAFLD) and inflammatory bowel disease (IBD) have shown similar worsening epidemic patterns globally and shared various overlapping pathophysiological mechanisms. However, evidence on the relationship between NAFLD and IBD risk is lacking. We aimed to investigate the associations between long-term risk of incident IBD and NAFLD in a large prospective cohort.Methods::Participants from the United Kingdom Biobank cohort (https://biobank.ndph.ox.ac.uk/) who were free of IBD and alcoholic liver disease at baseline were enrolled. Baseline non-alcoholic fatty liver degree was measured by the well-established fatty liver index (FLI). The outcomes of interest included incident IBD, ulcerative colitis (UC), and Crohn’s disease (CD). Multivariable Cox proportional hazard regression was used to calculate hazard ratios (HRs) and 95% confidence intervals (CIs).Results::Among 418,721 participants (mean FLI: 48.11 ± 30.11), 160,807 (38.40%) participants were diagnosed as NAFLD at baseline. During a median of 12.4 years’ follow-up, 2346 incident IBD cases (1545 UC, 653 CD, and 148 IBD-unclassified) were identified. Due to limited events, those IBD-unclassified were combined in UC or CD when examining the associated risk of UC or CD, separately. Compared with the lowest quartile of FLI, the highest quartile showed a separately 36.00%, 25.00%, and 58.00% higher risk of incident IBD (HR Q4 vs. Q1 =1.36, 95% CI: 1.19-1.55, Ptrend <0.001), UC (HR Q4 vs. Q1 =1.25, 95% CI: 1.07-1.46, Ptrend=0.047), and CD (HR Q4 vs. Q1 =1.58, 95% CI: 1.26-1.97, Ptrend <0.001) after multivariable adjustment. Compared with non-NAFLD, NAFLD participants had a significantly higher risk of incident IBD (HR=1.13, 95% CI: 1.04-1.24) and CD (HR =1.36, 95% CI: 1.17-1.58). Conclusions::Higher degree of non-alcoholic fatty liver is associated with increased risk of incident IBD. Interventions aimed at improving NAFLD may be a potential targeted strategy for the detection and treatment of IBD.
10.Progress in diagnosis and treatment of respiratory viral sepsis in children
Ru XUE ; Ting WANG ; Yongdong YAN
Chinese Journal of Applied Clinical Pediatrics 2024;39(3):224-227
Sepsis, whose morbidity and mortality remain high in children, is a life-threatening organ dysfunction resulting from dysregulated host responses to infection.With the global outbreak of Corona Virus Disease 2019, viral sepsis, especially respiratory viral sepsis, has attracted much attention.Early diagnosis and timely intervention are of great benefit to improve the prognosis of patients.This review focuses on the epidemiology, pathophysiology, diagnosis, and treatment of respiratory viral sepsis in children to provide clinical reference.

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