1.The Ferroptosis-inducing Compounds in Triple Negative Breast Cancer
Xin-Die WANG ; Da-Li FENG ; Xiang CUI ; Su ZHOU ; Peng-Fei ZHANG ; Zhi-Qiang GAO ; Li-Li ZOU ; Jun WANG
Progress in Biochemistry and Biophysics 2025;52(4):804-819
Ferroptosis, a programmed cell death modality discovered and defined in the last decade, is primarily induced by iron-dependent lipid peroxidation. At present, it has been found that ferroptosis is involved in various physiological functions such as immune regulation, growth and development, aging, and tumor suppression. Especially its role in tumor biology has attracted extensive attention and research. Breast cancer is one of the most common female tumors, characterized by high heterogeneity and complex genetic background. Triple negative breast cancer (TNBC) is a special type of breast cancer, which lacks conventional breast cancer treatment targets and is prone to drug resistance to existing chemotherapy drugs and has a low cure rate after progression and metastasis. There is an urgent need to find new targets or develop new drugs. With the increase of studies on promoting ferroptosis in breast cancer, it has gradually attracted attention as a treatment strategy for breast cancer. Some studies have found that certain compounds and natural products can act on TNBC, promote their ferroptosis, inhibit cancer cells proliferation, enhance sensitivity to radiotherapy, and improve resistance to chemotherapy drugs. To promote the study of ferroptosis in TNBC, this article summarized and reviewed the compounds and natural products that induce ferroptosis in TNBC and their mechanisms of action. We started with the exploration of the pathways of ferroptosis, with particular attention to the System Xc--cystine-GPX4 pathway and iron metabolism. Then, a series of compounds, including sulfasalazine (SAS), metformin, and statins, were described in terms of how they interact with cells to deplete glutathione (GSH), thereby inhibiting the activity of glutathione peroxidase 4 (GPX4) and preventing the production of lipid peroxidases. The disruption of the cellular defense against oxidative stress ultimately results in the death of TNBC cells. We have also our focus to the realm of natural products, exploring the therapeutic potential of traditional Chinese medicine extracts for TNBC. These herbal extracts exhibit multi-target effects and good safety, and have shown promising capabilities in inducing ferroptosis in TNBC cells. We believe that further exploration and characterization of these natural compounds could lead to the development of a new generation of cancer therapeutics. In addition to traditional chemotherapy, we discussed the role of drug delivery systems in enhancing the efficacy and reducing the toxicity of ferroptosis inducers. Nanoparticles such as exosomes and metal-organic frameworks (MOFs) can improve the solubility and bioavailability of these compounds, thereby expanding their therapeutic potential while minimizing systemic side effects. Although preclinical data on ferroptosis inducers are relatively robust, their translation into clinical practice remains in its early stages. We also emphasize the urgent need for more in-depth and comprehensive research to understand the complex mechanisms of ferroptosis in TNBC. This is crucial for the rational design and development of clinical trials, as well as for leveraging ferroptosis to improve patient outcomes. Hoping the above summarize and review could provide references for the research and development of lead compounds for the treatment for TNBC.
2.Research progress of cAMP/PKA signaling pathway in glaucoma optic neuropathy
Hongda CUI ; Yu HUANG ; Xin XIA ; Jiangwei LI ; Qinghua PENG
International Eye Science 2025;25(10):1598-1603
Glaucoma is a multifactorial degenerative optic neuropathy, and its irreversible and blinding pathological characteristics mainly come from the damage to the optic nerve, namely glaucomatous optic neuropathy(GON). The difficulty in the treatment of GON lies in the early intervention, and currently there is no optic neuroprotective drug for the treatment of all types of GON. The death of retinal ganglion cells(RGCs)is the core pathological change caused by various pathogenic mechanisms of GON. Recent studies have found that the widespread second messenger cyclic adenosine 3', 5' -monophosphate(cAMP)and its downstream effector protein kinase A(PKA)signal cascade play an important role in the pathogenesis of GON. It can also inhibit the apoptosis of RGCs and play a protective and therapeutic role in glaucoma. Therefore, this article reviews the role of cAMP/PKA pathway in the pathophysiological development of GON, focusing on its effects on glaucoma intraocular pressure regulation, oxidative stress, neuroinflammation and optic nerve degeneration, in order to find a common central regulatory target for the optic nerve damage caused by different pathological mechanisms of GON and promote the further understanding and clinical treatment of this disease.
3.Establishment of HPLC fingerprint and content determination of multiple index components in Xiao’er resuqing oral liquid
Junfeng CUI ; Shuai CUI ; Xiukun LIANG ; Dongxu LI ; Xinrui WANG ; Peng GAO
China Pharmacy 2024;35(7):801-806
OBJECTIVE To establish an HPLC fingerprint of Xiao’er resuqing oral liquid, and to determine the contents of twelve index components. METHODS HPLC method was adopted. The determination was performed on Venusil MP C18 column with mobile phase consisting of acetonitrile-0.1% phosphate aqueous solution (gradient elution) at a flow rate of 1.0 mL/min. The detection wavelength was set at 210 nm, the column temperature was 30 ℃, the injection volume was 10 μL. HPLC fingerprint of Xiao’er resuqing oral liquid was established by using the Similarity Evaluation System of Chromatographic Fingerprint of TCM (2012 edition) to evaluate the similarity. The contents of 12 components were determined, including (R, S)-goitrin, 3,5-O-dicaffeoyl quinic acid, puerarin, forsythin, forsythoside A, chlorogenic acid, baicalin, saikosaponins d, wogonoside, baicalein, emodin and chrysophanol. RESULTS The similarity of HPLC fingerprints of 13 batches of Xiao’er resuqing oral liquid was greater than 0.97, and 14 common peaks were confirmed. The contents of the above 12 index components in 13 batches of Xiao’er resuqing oral liquid were as follows: 0.078-0.172, 1.564-2.736, 1.338-2.578, 0.426-0.872, 1.477-2.628, 1.396-2.447, 4.052-9.146, 0.367- 0.692, 1.974-4.674, 1.274-2.969, 0.085-0.167 and 0.155-0.307 mg/mL. CONCLUSIONS The established HPLC fingerprint and content determination methods have high accuracy and high specificity, which can be used for the quality evaluation of Xiao’er resuqing oral liquid.
4.Epidemiological characteristics of heat stroke and association between heatwave and heat stroke in Jinan City, 2017—2022
Huiyun CHANG ; Bing SHAN ; Xiumiao PENG ; Tiantian LI ; Liangliang CUI
Journal of Environmental and Occupational Medicine 2024;41(4):384-389
Background In recent years, regional high-temperature weather in summer occurs frequently in China. Heat stroke is the most representative meteorological disease caused by high temperature. In order to improve monitoring, early warning, prevention, and control of heat stroke, it is of great significance to understand the epidemiological characteristics of heat stroke and the associated impact of heatwave. Objective To understand the epidemiological characteristics of heat stroke cases in Jinan City, and to explore the effects of heatwave exposure on heat stroke. Methods Case reports of heat stroke and daily data of meteorological factors in Jinan City from 2017 to 2022 were collected. We described the temporal, population, and regional distribution characteristics of heat stroke cases in Jinan City, and used a time-stratified case-crossover design combined with conditional logistic regression model to explore the effects of heatwave exposure on heat stroke under 12 heatwave definitions (different combinations of intensity and duration). The cut-off percentiles used for heatwave definitions were the 90th (P90), 95th (P95), 97.5th (P97.5), and 99th (P99) percentiles of daily mean temperature; the durations were ≥ 2 d, ≥ 3 d, and ≥ 4 d, respectively. Pi(k), where i is temperature threshold, and k is duration. For example, the definition of a heatwave was notated as P90(2), indicating that the daily mean temperature is ≥ P90 and lasts for ≥ 2 d. Alternatively, lag01 denotes the cumulative lag effect with a 1 d lag, and so on. Results A total of 1394 cases of heat stroke were reported in Jinan City from 2017 to 2022, including 581 mild cases and 813 severe cases, and 85 deaths were reported, with a cumulative fatality rate of 6.10%. The cases of heat stroke reported each year during the study period were concentrated from June to August and peaked in July (665 cases, 47.70%). The sex ratio of males to females in heat stroke cases was 2.02:1. A high incidence of heat stroke was in 50-89 years, with a smaller peak occurring in the age group of 50-59 years and a larger peak in the age group of 70-79 years, respectively. The high-incidence areas of heat stroke were distributed in the western part of Jinan City where city centers situated (Tianqiao District, 274 cases, 19.66%; Huaiyin District, 223 cases, 16.00%) and in the surrounding rural areas (Pingyin County, 254 cases, 18.22%). The effect of heatwave exposure on heat stroke was statistically significant during the study period. The largest effect estimates for the effect on heat stroke occurred under the heatwave definitions of P99(2), P97.5(3), and P97.5(4) at lag04, lag03, and lag04, where corresponding OR (95%CI) values were 9.27 (4.71, 14.24), 8.95 (6.17, 12.98), and 8.22 (4.91, 13.78), respectively. The exposure-response curve showed that the risk of heat stroke tended to increase with the increase of average daily temperature. Conclusion July is the key period for the occurrence of heat stroke among Jinan City residents, while male cases are predominant, more serious cases, age concentration in the 50-89 years. The occurrence of heatwave can further increase the risk of heat stroke with a significant lag effect.
5.Association between intraoperative hypotension and postoperative acute kidney injury in patients un-dergoing brain tumor resection
Qianyu CUI ; Jiaxin LI ; Tingting MA ; Xingyue ZHANG ; Shu LI ; Min ZENG ; Yuming PENG
The Journal of Clinical Anesthesiology 2024;40(2):160-164
Objective To investigate the association between intraoperative hypotension and post-operative acute kidney injury(AKI)in patients undergoing brain tumor resections.Methods A total of 428 patients undergoing elective craniotomy for tumor resection were selected,276 males and 152 females,aged≥18 years,BMI 15-36 kg/m2,ASA physical statusⅡ orⅢ.Based on postoperative occurrence of AKI,the patients were divided into two groups:the AKI group and the control group.This study defined three thresholds for hypotension,including MAP during surgery below 65 mmHg,60 mmHg,and 55 mmHg.Multivariate logistic regression was used to analyze the correlation between intraoperative hypotension and postoperative AKI under three thresholds.Results A total of 107 patients had postoperative AKI.The re-sults of multivariable regression analysis indicated that intraoperative MAP<65 mmHg(OR = 1.11,95%CI 1.03-1.20,P = 0.010)and intraoperative MAP<60 mmHg(OR = 1.12,95%CI 1.02-1.23,P = 0.017)were associated with postoperative AKI.Conclusion Intraoperative MAP<65 mmHg or 60 mmHg is associated with postoperative AKI in patients undergoing brain tumor resection.
6.Efficacy and safety profile of repetitive transcranial magnetic stimulation versus modified electroconvulsive therapy in combination with antidepressants in patients with major depressive disorder
Meijie WANG ; Yajie SHI ; Peng YANG ; Jianjun WANG ; Yingyin LI ; Jian CUI ; Xiaoming ZHANG
Sichuan Mental Health 2024;37(2):108-113
BackgroundMajor depressive disorder is one of the most disabling mental diseases. Currently, medication in combination with physiotherapy and psychotherapy remains the most commonly used treatment modality for the disease, whereas only a few randomized controlled studies have been conducted on physiotherapy, and even fewer studies have focused on medication combined with physiotherapy. ObjectiveTo explore the efficacy and safety profile of repetitive transcranial magnetic stimulation (rTMS) versus modified electroconvulsive therapy (MECT) in combination with antidepressants in the treatment of major depressive disorder, so as to provide an optimized treatment plan for patients with major depressive disorder. MethodsPatients with major depressive disorder (n=335) hospitalized in Shandong Daizhuang Hospital from January 1, 2019 to April 30, 2023 were included, all of whom met the diagnostic criteria of the International Classification of Diseases, tenth edition (ICD-10). Depending on their disease condition, patients were subjected to either MECT in combination with drugs (n=141) or rTMS in combination with drugs (n=194) after admission. Depressive symptoms were assessed using Hamilton Depression Scale-24 item (HAMD-24) at the baseline and the end of the 1st, 2nd, 3rd and 4th week of treatment, and the adverse reactions were documented in patient's medical records. ResultsAnalysis of variance on HAMD-24 revealed a significant effect of time (F=3.081, P=0.042), but no effect of group (F=1.023, P=0.313), and the interaction effect between the time and the groups was not statistically significant (F=1.642, P=0.191). No statistical difference was reported between two groups in response rate and full remission rate (P>0.05). Throughout the course of treatment, 58 cases (41.13%) of recent memory impairment and 74 cases (52.48%) of headache or neck muscle pain occurred in MECT combined with drugs group, and 27 cases (13.92%) in rTMS combined with drugs group experienced headache or head skin discomfort. ConclusionAntidepressants in combination with rTMS or MECT show equivalent efficacy in the treatment of major depressive disorder, while rTMS combined with antidepressants demonstrates a superior safety profile compared to MECT.
7.Discussion on hot topics and promotion paths for post-market surveillance and supervise of medical consumables based on non-active medical devices
Fang DONG ; Jianlong YANG ; Jiayue LI ; Peng NING ; Fangfang CHEN ; Shengnan SHI ; Xiaolan QIU ; Zigui XIE ; Zeshi CUI
China Medical Equipment 2024;21(2):166-173
Objective:To explore the research hotspots and effective promotion paths of post market surveillance and supervise of medical consumables with non-active medical devices.Methods:Data mining methods were used to collect related journal literatures and documents from the websites of China regulatory institutions and the China National Knowledge Infrastructure(CNKI),order sub item data of medical device adverse event reports,extract the MeSH element words of literatures and documents,perform bibliometric analysis and visual display.Results:The number of medical devices adverse event reports in China has been increasing year by year,reaching 694 866 in 2022,in the four statistical years from 2019 to 2022,the number of reports on non-active medical devices and IVD reagents also showed a parallel increasing trend,accounting for about 65.00% of the total number of adverse event reports on medical devices in the year.The bibliometric analysis of journal literature shows that research in this field has received varying degrees of participation from regulatory institutions,universities,medical institutions,and enterprises.Regulatory institutions have contributed 46 articles,accounting for 56.79% of the total number of articles,followed by 28 articles from universities.The co-occurrence analysis shows that hot topic is focused in 5 clusters:quality management,risk management,international experiences discussion and adverse event surveillance and re-evaluation and real-world research.China regulatory institutions attach great importance to post market surveillance and supervise,and have issued more than 20 relevant documents since 2006,focusing on specific topics and gradually deepening around safety and effectiveness.Conclusion:The post market surveillance and supervise of medical devices,especially medical consumables based on non-active medical devices,need to be promoted synchronously in three dimensions:regulatory institutions,medical institutions,and enterprises.Universities,research institutes,and industry organizations should work in coordinating to strengthen the collection,identification,and active surveillance of risk signals based on adverse event surveillance,safety evaluation based on risk management,and conducting real-world research,research and develop risk control and corrective and preventive measures.
8.Discussion of the methodology and implementation steps for assessing the causality of adverse event
Hong FANG ; Shuo-Peng JIA ; Hai-Xue WANG ; Xiao-Jing PEI ; Min LIU ; An-Qi YU ; Ling-Yun ZHOU ; Fang-Fang SHI ; Shu-Jie LU ; Shu-Hang WANG ; Yue YU ; Dan-Dan CUI ; Yu TANG ; Ning LI ; Ze-Huai WEN
The Chinese Journal of Clinical Pharmacology 2024;40(2):299-304
The assessment of adverse drug events is an important basis for clinical safety evaluation and post-marketing risk control of drugs,and its causality assessment is gaining increasing attention.The existing methods for assessing the causal relationship between drugs and the occurrence of adverse reactions can be broadly classified into three categories:global introspective methods,standardized methods,and probabilistic methods.At present,there is no systematic introduction of the operational details of the various methods in the domestic literature.This paper compares representative causality assessment methods in terms of definition and concept,methodological steps,industry evaluation and advantages and disadvantages,clarifies the basic process of determining the causality of adverse drug reactions,and discusses how to further improve the adverse drug reaction monitoring and evaluation system,with a view to providing a reference for drug development and pharmacovigilance work in China.
9.Study on influencing factors of venous thromboembolism in pneumonia patients
Rui-Juan LI ; Jing NIU ; Peng-Yan JIA ; Zhuo ZHANG ; Cheng-Li QUE ; Qian XIANG ; Yi-Min CUI
The Chinese Journal of Clinical Pharmacology 2024;40(17):2479-2482
Objective To analyze the incidence of venous thromboembolism(VTE)in pulmonary patients and explore the assessment and prevention of the risk of pneumonia accompanied VTE.Methods The patients with pneumonia were divided into control group(simple pneumonia)and treatment group(with VTE)according to the condition of VTE.Demographic data,blood routine,coagulation index,liver and kidney function index and blood gas index were collected.Statistical methods like chi square test,t-test and nonparametric rank sum test were applied to compare the differences between the two groups.Finally,the nomogram was established according to the logistic regression results and the receiver operating characteristic(ROC)curve was calculated.Results 106 cases in control group and 29 cases in treatment group.Univariate analysis showed that age,D-dimer,fibrinogen degradation products,white blood cell count,neutrophil count,albumin-globulin ratio were statistically significant(P<0.05).Multivariate logistic regression analysis suggests that age[odds ratio(OR)=1.052],D-dimer(OR=2.339),and albumin/globulin(OR=0.042)are independent affecting factors for VTE in pneumonia patients.A nomogram was developed and ROC was calculated,the area under curve(AUC)was 0.754.Conclusion High age,elevated D-dimer and decreased albumin/globulin are independent risk factors for VTE in pneumonia patients.More over,the established prediction model has good accuracy.
10.Active monitoring study of central nervous system adverse drug reactions due to commonly used carbapenems
Jing XIAO ; Hai-Yan LI ; Dai-Hong GUO ; Man ZHU ; Ao GAO ; Peng LI ; Li-Qiang CUI
The Chinese Journal of Clinical Pharmacology 2024;40(17):2562-2566
Objective To obtain the occurrence and clinical characteristics of central nervous system adverse drug reactions(CNS-ADR)associated with three kinds of carbapenems,and to provide reference for clinical drug safety.Methods Based on adverse drug event active surveillance and assessment system-Ⅱ(ADE-ASAS-Ⅱ),retrospective automated monitoring of inpatients using imipenem,meropenem,and biapenem in a tertiary hospital from January 2022 to December 2022 was conducted.The incidence of carbapenem related CNS-ADR was calculated,and the basic conditions,disease conditions,drug use,occurrence time of ADR and symptoms of patients with CNS-ADR were analyzed by descriptive statistics.Results A total of 2 482 patients with 2 709 times of medication were included in this study,and a total of 93 positive cases of CNS-ADR occurred,with an overall incidence of 3.43%for all three medications,3.98%for imipenem,3.51%for meropenem,and 2.78%for biapenem.The indications for the 93 positive cases of CNS-ADR were mainly pulmonary infections(59.13%)and abdominal infections(25.80%);they occurred mostly within 7 days of the administration of the medication;with a variety of clinical manifestations,with anxiety/irritability being the most common,and epilepsy appearing most frequently in severe cases.Co-administration of proton pump inhibitors and cephalosporins accounted for a greater proportion of positive cases,50.54%of positive cases had a history of surgery,and 69.89%of positive cases were associated with electrolyte disturbances.Conclusion Clinical use of carbapenems should be based on the actual situation of the patient to develop an individualised drug regimen,and special attention should be paid to patients with comorbidities of renal disease,electrolyte disorders,and a history of previous surgery and neurological disorders,in order to reduce the risk of the occurrence of CNS-ADR.

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