期刊文献+
共找到301篇文章
< 1 2 16 >
每页显示 20 50 100
Medical Waste Management in China: A Case Study of Xinxiang
1
作者 Li Nie Zhong Qiao Huan Wu 《Journal of Environmental Protection》 2014年第10期803-810,共8页
Due to medical waste’s infection and hazard, it can cause potential environmental and public health risks, so medical waste management is of great importance especially in developing countries. The objective of the s... Due to medical waste’s infection and hazard, it can cause potential environmental and public health risks, so medical waste management is of great importance especially in developing countries. The objective of the study was to analyze and assess current status of medical waste management in the light of semi-structured interview in medical institutions and the medical waste disposal centre. As a medium-sized city of China and its respective nature, Xinxiang was selected as the case study. In order to significantly improve eco-efficiency of medical waste management (MWM) and minimize the environmental risks, this paper identified key factors determining the implementation of MWM on the basis of the local realities and situations of medical waste, and then an integrated MWM system was developed. Such the regulations should be improved;MWM database platform should be strengthened;unified coordination ability of the MWM should be developed;and a suitable rural recycling network should be set up. 展开更多
关键词 MEDICAL WASTE Management Integrated System MEDICAL Institutions MEDICAL WASTE DISPOSAL CENTER REGULATIONS
下载PDF
Research on Practical Pathways of Strengthening Labor Education for College and University Students in the New Era 被引量:1
2
作者 Siwen Wang Peng Li +2 位作者 Liping Wang Xuexin Wang Yinbiao Wang 《Journal of Contemporary Educational Research》 2023年第10期105-112,共8页
Labor education is an essential component of college and university education that can help students to develop a strong work ethic,acquire practical skills,and better understand the value of work.Strengthening labor ... Labor education is an essential component of college and university education that can help students to develop a strong work ethic,acquire practical skills,and better understand the value of work.Strengthening labor education for college and university students is an urgent need of the high-quality development of the society and the internal requirement of promoting the all-round development of individuals.This study analyzes the importance of strengthening labor education for college and university students in the new era and proposes four practical pathways which draw on labor courses and campus activities,social practices,scientific research projects,and internships.After implementing these pathways,a survey of 967 students showed that students’understanding and awareness of labor was deepened,their hands-on skills and interests in science and labor practices were improved,and they became more cordially respectful to the working class.Taken together,the exploration and practice of these pathways helps college and university students to recognize their abilities,strengths,and interests,and guides them to form good labor habits that permeate all aspects of their studies and lives. 展开更多
关键词 Labor education College and university students Strengthening pathways Practice and effect
下载PDF
Ambient Temperature and Risk of Outpatient Chronic Pharyngitis Visits:A Time-series Analysis in Xinxiang,China
3
作者 LIANG Wen Juan CHAO Ling +4 位作者 ZHAO Xiang Mei ZHANG Rong Guang ZHAO Rui Qing WU Wei Dong SONG Jie 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2023年第10期991-995,共5页
Chronic pharyngitis(CP)is a prevalent medical condition in the field of otorhinolaryngology characterized by persistent inflammation of the pharyngeal mucosa,submucosa,and lymphoid tissue.The etiology of CP is multifa... Chronic pharyngitis(CP)is a prevalent medical condition in the field of otorhinolaryngology characterized by persistent inflammation of the pharyngeal mucosa,submucosa,and lymphoid tissue.The etiology of CP is multifactorial,with noninfectious factors such as personal habits(e.g.,smoking and drinking). 展开更多
关键词 CHRONIC INFLAMMATION MUCOSA
下载PDF
Current perspectives on mesenchymal stem cells as a potential therapeutic strategy for non-alcoholic fatty liver disease 被引量:3
4
作者 Yan Jiang Narazah Mohd Yusoff +2 位作者 Jiang Du Emmanuel Jairaj Moses Jun-Tang Lin 《World Journal of Stem Cells》 SCIE 2024年第7期760-772,共13页
Non-alcoholic fatty liver disease(NAFLD)has emerged as a significant health challenge,characterized by its widespread prevalence,intricate natural progression and multifaceted pathogenesis.Although NAFLD initially pre... Non-alcoholic fatty liver disease(NAFLD)has emerged as a significant health challenge,characterized by its widespread prevalence,intricate natural progression and multifaceted pathogenesis.Although NAFLD initially presents as benign fat accumulation,it may progress to steatosis,non-alcoholic steatohepatitis,cirrhosis,and hepatocellular carcinoma.Mesenchymal stem cells(MSCs)are recognized for their intrinsic self-renewal,superior biocompatibility,and minimal immunogenicity,positioning them as a therapeutic innovation for liver diseases.Therefore,this review aims to elucidate the potential roles of MSCs in alleviating the progression of NAFLD by alteration of underlying molecular pathways,including glycolipid metabolism,inflammation,oxidative stress,endoplasmic reticulum stress,and fibrosis.The insights are expected to provide further understanding of the potential of MSCs in NAFLD therapeutics,and support the development of MSC-based therapy in the treatment of NAFLD. 展开更多
关键词 Non-alcoholic induced fatty liver disease Mesenchymal stem cells Lipid accumulation INFLAMMATION Oxidative stress Endoplasmic reticulum stress FIBROSIS
下载PDF
Nanocarrier-mediated siRNA delivery:a new approach for the treatment of traumatic brain injury-related Alzheimer's disease
5
作者 Jie Jin Huajing Zhang +9 位作者 Qianying Lu Linqiang Tian Sanqiao Yao Feng Lai Yangfan Liang Chuanchuan Liu Yujia Lu Sijia Tian Yanmei Zhao Wenjie Ren 《Neural Regeneration Research》 SCIE CAS 2025年第9期2538-2555,共18页
Traumatic brain injury and Alzheimer's disease share pathological similarities,including neuronal loss,amyloid-βdeposition,tau hyperphosphorylation,blood-brain barrier dysfunction,neuroinflammation,and cognitive ... Traumatic brain injury and Alzheimer's disease share pathological similarities,including neuronal loss,amyloid-βdeposition,tau hyperphosphorylation,blood-brain barrier dysfunction,neuroinflammation,and cognitive deficits.Furthermore,traumatic brain injury can exacerbate Alzheimer's disease-like pathologies,potentially leading to the development of Alzheimer's disease.Nanocarriers offer a potential solution by facilitating the delive ry of small interfering RNAs across the blood-brain barrier for the targeted silencing of key pathological genes implicated in traumatic brain injury and Alzheimer's disease.U nlike traditional approaches to neuro regeneration,this is a molecula r-targeted strategy,thus avoiding non-specific drug actions.This review focuses on the use of nanocarrier systems for the efficient and precise delive ry of siRNAs,discussing the advantages,challenges,and future directions.In principle,siRNAs have the potential to target all genes and non-targetable protein s,holding significant promise for treating various diseases.Among the various therapeutic approaches currently available for neurological diseases,siRNA gene silencing can precisely"turn off"the expression of any gene at the genetic level,thus radically inhibiting disease progression;however,a significant challenge lies in delivering siRNAs across the blood-brain barrier.Nanoparticles have received increasing attention as an innovative drug delive ry tool fo r the treatment of brain diseases.They are considered a potential therapeutic strategy with the advantages of being able to cross the blood-brain barrier,targeted drug delivery,enhanced drug stability,and multifunctional therapy.The use of nanoparticles to deliver specific modified siRNAs to the injured brain is gradually being recognized as a feasible and effective approach.Although this strategy is still in the preclinical exploration stage,it is expected to achieve clinical translation in the future,creating a new field of molecular targeted therapy and precision medicine for the treatment of Alzheimer's disease associated with traumatic brain injury. 展开更多
关键词 blood-brain barrier cognitive dysfunction EXOSOMES gene silencing immunotherapy inorganic nanomaterials liposome nanoparticles NEUROINFLAMMATION polymer nanoparticles stem cells
下载PDF
Managing immune checkpoint inhibitor-associated gastritis: Insights and strategies
6
作者 Li-Li Yu Zhi-Lin He Xin-Lai Qian 《World Journal of Gastroenterology》 SCIE CAS 2024年第24期3120-3122,共3页
Immune checkpoint inhibitors(ICIs)are widely used due to their effectiveness in treating various tumors.Immune-related adverse events(irAEs)are defined as adverse effects resulting from ICI treatment.Gastrointestinal ... Immune checkpoint inhibitors(ICIs)are widely used due to their effectiveness in treating various tumors.Immune-related adverse events(irAEs)are defined as adverse effects resulting from ICI treatment.Gastrointestinal irAEs are a common type of irAEs characterized by intestinal side effects,such as diarrhea and colitis,which may lead to the discontinuation of ICIs. 展开更多
关键词 IMMUNOTHERAPY Immune checkpoint inhibitor Immune checkpoint inhibitor-related gastritis Immune-related adverse events Autoimmune responses
下载PDF
Megestrol acetate plus metformin for fertility-sparing treatment of atypical endometrial hyperplasia and early-stage endometrial adenocarcinoma: a prospective study
7
作者 Yuanyuan WANG Tianjiao LAI +4 位作者 Danxia CHU Jing BAI Shuping YAN Haixia QIN Ruixia GUO 《南方医科大学学报》 CAS CSCD 北大核心 2024年第11期2055-2062,共8页
Objective To evaluate the efficacy of medroxyprogesterone acetate(MA)plus metformin as the primary fertility-sparing treatment for atypical endometrial hyperplasia(AEH)and early-stage grade 1 endometrial adenocarcinom... Objective To evaluate the efficacy of medroxyprogesterone acetate(MA)plus metformin as the primary fertility-sparing treatment for atypical endometrial hyperplasia(AEH)and early-stage grade 1 endometrial adenocarcinoma(G1 EAC)and the recurrence rate after treatment.Methods Sixty patients(aged 20-42 years)with AEH and/or grade 1 EAC limited to the endometrium were enrolled prospectively and randomized into two groups(n=30)to receive oral MA treatment at the daily dose of 160 mg(control)or MA plus oral metformin(850 mg,twice a day)for at least 6 months.The treatment could extend to 12 months until a complete response(CR)was achieved,and follow-up hysteroscopy and curettage were performed every 3 months.For all the patients who achieved CR,endometrial expressions of IGFBP-rP1,p-Akt and p-AMPK were detected immunohistochemically.Results A total of 58 patients completed the treatment.After 9 months of treatment,23(76.7%)patients in the combined treatment group and 20(71.4%)in the control group achieved CR;two patients in the control group achieved CR after converting to the combined treatment.The recurrence rate did not differ significantly between the control group and combined treatment group(30.0%vs 22.7%,P>0.05).Ten(35.7%)patients in the control group experienced significant weight gain of 5.7±6.1 kg,while none of the patients receiving the combined treatment exhibited significant body weight changes.Compared with the control group,the patients receiving the combined treatment showed enhanced endometrial expressions of IGFBP-rP1 and p-AMPK with lowered p-Akt expression.Conclusion Metformin combined with MA may provide an effective option for fertility-sparing treatment of AEH and grade 1 stage IA EAC,and the clinical benefits of metformin for controlling MA-induced weight gain and promoting endometrial expressions of IGFBP-rP1 and p-AMPK while inhibiting p-Akt expression warrants further study. 展开更多
关键词 endormetrial adenocarcinoma METFORMIN atypical endometrial hyperplasia fertility-sparing treatment megestrol acetate insulin-like growth factor binding protein-related protein 1
下载PDF
Amlodipine inhibits the proliferation and migration of esophageal carcinoma cells through the induction of endoplasmic reticulum stress
8
作者 Yan-Min Chen Wen-Qian Yang +3 位作者 Cheng-Wei Gu Ying-Ying Fan Yu-Zhen Liu Bao-Sheng Zhao 《World Journal of Gastroenterology》 SCIE CAS 2024年第4期367-380,共14页
BACKGROUND L-type calcium channels are the only protein channels sensitive to calcium channel blockers,and are expressed in various cancer types.The Cancer Genome Atlas database shows that the mRNA levels of multiple ... BACKGROUND L-type calcium channels are the only protein channels sensitive to calcium channel blockers,and are expressed in various cancer types.The Cancer Genome Atlas database shows that the mRNA levels of multiple L-type calcium channel subunits in esophageal squamous cell carcinoma tumor tissue are significantly higher than those in normal esophageal epithelial tissue.Therefore,we hypothesized that amlodipine,a long-acting dihydropyridine L-type calcium channel blocker,may inhibit the occurrence and development of esophageal cancer(EC).AIM To investigate the inhibitory effects of amlodipine on EC through endoplasmic reticulum(ER)stress.METHODS Cav1.3 protein expression levels in 50 pairs of EC tissues and corresponding paracancerous tissues were examined.Subsequently,the inhibitory effects of amlodipine on proliferation and migration of EC cells in vitro were detected using 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide and Transwell assays.In vivo experiments were performed using murine xenograft model.To elucidate the underlying mechanisms,in vitro cell studies were performed to confirm that ER stress plays a role in inhibition proliferation and migration of EC cells treated with amlodipine.RESULTS The expression level of Cav1.3 in esophageal carcinoma was 1.6 times higher than that in paracancerous tissues.Amlodipine treatment decreased the viability of esophageal carcinoma cells in a dose-and time-dependent manner.In vivo animal experiments also clearly indicated that amlodipine inhibited the growth of EC tumors in mice.Additionally,amlodipine reduces the migration of tumor cells by inhibiting epithelial-mesenchymal transition(EMT).Mechanistic studies have demonstrated that amlodipine induces ER stress-mediated apoptosis and suppresses EMT.Moreover,amlodipine-induced autophagy was characterized by an increase in autophagy lysosomes and the accumulation of light chain 3B protein.The combination of amlodipine with the ER stress inhibitor 4-phenylbutyric acid further confirmed the role of the ER stress response in amlodipine-induced apoptosis,EMT,and autophagy.Furthermore,blocking autophagy increases the ratio of apoptosis and migration.CONCLUSION Collectively,we demonstrate for the first time that amlodipine promotes apoptosis,induces autophagy,and inhibits migration through ER stress,thereby exerting anti-tumor effects in EC. 展开更多
关键词 L-type calcium channel AMLODIPINE Esophageal cancer AUTOPHAGY Endoplasmic reticulum stress
下载PDF
Effects of Curcumin on Neuroinflammation and the Nrf2/HO-1 Pathway in Rat Brains Following Gas Explosion
9
作者 Xinwen Dong Yaguang Su +9 位作者 Zheng Luo Lyufei Deng Xiaofeng Han Yifang Liang Sanqiao Yao Weidong Wu Jia Cao Linqiang Tian Yichun Bai Wenjie Ren 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2024年第8期943-947,共5页
Gas explosions,a major occupational hazard in China’s coal industry,endanger the lives and health of miners.These explosions cause a specific type of traumatic brain injury with complex mechanisms,leading to disabili... Gas explosions,a major occupational hazard in China’s coal industry,endanger the lives and health of miners.These explosions cause a specific type of traumatic brain injury with complex mechanisms,leading to disability and death.A study by Zhao et al.using magnetic resonance imaging on 49 gas explosion survivors revealed significant damage to brain regions like the hippocampus and cerebral cortex. 展开更多
关键词 damage NRF2 CEREBRAL
下载PDF
Aspirin suppresses hepatocellular carcinoma progression by inhibiting platelet activity
10
作者 Li-Jun Zhao Zhi-Yin Wang +4 位作者 Wei-Ting Liu Li-Li Yu Hao-Nan Qi Jie Ren Chen-Guang Zhang 《World Journal of Gastrointestinal Oncology》 SCIE 2024年第6期2742-2756,共15页
BACKGROUND Hepatocellular carcinoma(HCC)is the most common malignant liver disease in the world.Platelets(PLTs)are known to play a key role in the maintenance of liver homeostasis and the pathophysiological processes ... BACKGROUND Hepatocellular carcinoma(HCC)is the most common malignant liver disease in the world.Platelets(PLTs)are known to play a key role in the maintenance of liver homeostasis and the pathophysiological processes of a variety of liver diseases.Aspirin is the most classic antiplatelet agent.However,the molecular mechanism of platelet action and whether aspirin can affect HCC progression by inhibiting platelet activity need further study.AIM To explore the impact of the antiplatelet effect of aspirin on the development of HCC.METHODS Platelet-rich plasma,platelet plasma,pure platelet,and platelet lysate were prepared,and a coculture model of PLTs and HCC cells was established.CCK-8 analysis,apoptosis analysis,Transwell analysis,and real-time polymerase chain reaction(RT-PCR)were used to analyze the effects of PLTs on the growth,metastasis,and inflammatory microenvironment of HCC.RT-PCR and Western blot were used to detect the effects of platelet activation on tumor-related signaling pathways.Aspirin was used to block the activation and aggregation of PLTs both in vitro and in vivo,and the effect of PLTs on the progression of HCC RESULTS PLTs significantly promoted the growth,invasion,epithelial-mesenchymal transition,and formation of an inflammatory microenvironment in HCC cells.Activated PLTs promoted HCC progression by activating the mitogenactivated protein kinase/protein kinase B/signal transducer and activator of transcription three(MAPK/AKT/STAT3)signaling axis.Additionally,aspirin inhibited HCC progression in vitro and in vivo by inhibiting platelet activation.CONCLUSION PLTs play an important role in the pathogenesis of HCC,and aspirin can affect HCC progression by inhibiting platelet activity.These results suggest that antiplatelet therapy has promising application prospects in the treatment and combined treatment of HCC. 展开更多
关键词 PLATELETS Antiplatelet therapy Hepatocellular carcinoma ASPIRIN ANTITUMOR
下载PDF
Small particle drug-eluting beads-transarterial chemoembolization combined with targeted therapy in the clinical treatment of unresectable liver cancer
11
作者 Jing-Song Qi Peng Zhao +2 位作者 Xiao-Bo Zhao Yong-Li Zhao Ying-Chang Guo 《World Journal of Gastrointestinal Oncology》 SCIE 2024年第10期4157-4165,共9页
BACKGROUND Liver cancer is a highly malignant tumor with significant clinical impact.Chemotherapy alone often yields suboptimal outcomes in both the short and long term,characterized by high rates of local recurrence ... BACKGROUND Liver cancer is a highly malignant tumor with significant clinical impact.Chemotherapy alone often yields suboptimal outcomes in both the short and long term,characterized by high rates of local recurrence and distant metastasis,leading to a poor long-term prognosis.AIM To evaluate the clinical efficacy of small particle drug-eluting beads-transarterial chemoembolization(DEB-TACE)combined with targeted therapy for the treatment of unresectable liver cancer.METHODS We analyzed clinical data from 74 patients with unresectable liver cancer admitted between January 2019 and December 2020.Based on the different treatment regimens administered,patients were divided into the control(36 patients receiving sorafenib alone)and joint(38 patients receiving small particle DEB-TACE combined with sorafenib)groups.We compared liver function indicators[alanine aminotransferase(ALT),aspartate aminotransferase(AST),total bilirubin(TBIL),albumin(ALB)]and serum tumor markers[alpha fetoprotein(AFP)]before and after treatment in both groups.Short-term efficacy measures[complete response(CR),partial response,progression disease,stable disease,objective response rate(ORR),and disease control rate(DCR)]were assessed post-treatment.Long-term follow-up evaluated median overall survival(OS),progression-free survival(PFS),and adverse reaction rates between the two groups.RESULTS One month post-treatment,the joint group demonstrated significantly higher rates of CR,ORR,and DCR compared to the control group(P<0.05).Three days after treatment,the joint group showed elevated levels of ALT,AST,and TBIL but reduced levels of ALB and AFP compared to the control group(P<0.05).The median OS was 18 months for the control group and 25 months for the joint group,while the median PFS was 15 months for the control group and 22 months for the joint group,with significant differences observed(log-rank:χ2=7.824,6.861,respectively;P=0.005,0.009,respectively).The incidence of adverse reactions was not significantly different between the groups(P>0.05).CONCLUSION The combination of small particle DEB-TACE and sorafenib significantly improves both short-and long-term outcomes in the treatment of unresectable liver cancer while preserving liver function. 展开更多
关键词 Small particle Drug-eluting beads-transarterial chemoembolization SORAFENIB TREATMENT Unresectable liver cancer
下载PDF
Periorbital purpura can be the only initial symptom of primary light chain amyloidosis:A case report
12
作者 Xiu-Feng Wang Ting Li +1 位作者 Man Yang Yan Huang 《World Journal of Clinical Cases》 SCIE 2024年第26期5946-5951,共6页
BACKGROUND Primary light chain amyloidosis is a rare and complex disease with complex clinical features and is highly susceptible to misdiagnosis and underdiagnosis in the early stages.CASE SUMMARY We report a case of... BACKGROUND Primary light chain amyloidosis is a rare and complex disease with complex clinical features and is highly susceptible to misdiagnosis and underdiagnosis in the early stages.CASE SUMMARY We report a case of a 47-year-old female patient whose only initial symptom was periorbital purpura,which was not taken seriously enough.As the disease progressed,pleural effusion gradually appeared,and after systematic diagnosis and treatment,she was diagnosed with“primary light chain amyloidosis”.She achieved rapid hematological remission after treatment with a daratumumab+bortezomib+cyclophosphamide+dexamethasone regimen.CONCLUSION Periorbital purpura can be the only initial symptom of primary light chain amyloidosis;we should pay attention to the cases where the initial clinical symptoms are only periorbital purpura. 展开更多
关键词 Primary light chain amyloidosis Periorbital purpura Initial symptom Literature review Case report
下载PDF
Change in self-image pressure level before and after autologous fat breast augmentation and its effect on social adaptability
13
作者 Jian Li Hui-Min Wang +2 位作者 Yang Jiang Zhen-Nan Liu Bai-Hui He 《World Journal of Psychiatry》 SCIE 2024年第6期920-929,共10页
BACKGROUND There is an increasingly strong demand for appearance and physical beauty in social life,marriage,and other aspects with the development of society and the improvement of material living standards.An increa... BACKGROUND There is an increasingly strong demand for appearance and physical beauty in social life,marriage,and other aspects with the development of society and the improvement of material living standards.An increasing number of people have improved their appearance and physical shape through aesthetic plastic surgery.The female breast plays a significant role in physical beauty,and droopy or atrophied breasts can frequently lead to psychological inferiority and lack of confidence in women.This,in turn,can affect their mental health and quality of life.AIM To analyze preoperative and postoperative self-image pressure-level changes of autologous fat breast augmentation patients and their impact on social adaptability.METHODS We selected 160 patients who underwent autologous fat breast augmentation at the First Affiliated Hospital of Xinxiang Medical University from January 2020 to December 2022 using random sampling method.The general information,selfimage pressure level,and social adaptability of the patients were investigated using a basic information survey,body image self-assessment scale,and social adaptability scale.The self-image pressure-level changes and their effects on the social adaptability of patients before and after autologous fat breast augmentation were analyzed.RESULTS We collected 142 valid questionnaires.The single-factor analysis results showed no statistically significant difference in the self-image pressure level and social adaptability score of patients with different ages,marital status,and monthly income.However,there were significant differences in social adaptability among patients with different education levels and employment statuses.The correlation analysis results revealed a significant correlation between the self-image pressure level and social adaptability score before and after surgery.Multiple factors analysis results showed that the degree of concern caused by appearance in selfimage pressure,the degree of possible behavioral intervention,the related distress caused by body image,and the influence of body image on social life influenced the social adaptability of autologous fat breast augmentation patients.CONCLUSION The self-image pressure on autologous fat breast augmentation patients is inversely proportional to their social adaptability. 展开更多
关键词 Autologous fat breast augmentation surgery Self-image stress level Social adaptability Analysis of correlation Structural equation model
下载PDF
Estimating the Scarlet Fever Epidemics Using a Seasonal Autoregressive Fractionally Integrated Moving Average Model
14
作者 WANG Yong Bin XUE Chen Lu +2 位作者 ZHOU Pei Ping ZHANG Bing Jie XU Chun Jie 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2024年第3期336-340,共5页
Scarlet fever(SF)is a common infectious disease caused by group A streptococcus(GAS)[1].During the 18th and 19th centuries,SF was a significant cause of mortality in children aged 5-15 years worldwide[2].The incidence... Scarlet fever(SF)is a common infectious disease caused by group A streptococcus(GAS)[1].During the 18th and 19th centuries,SF was a significant cause of mortality in children aged 5-15 years worldwide[2].The incidence and fatality rates of SF have decreased remarkably due to the widespread use of effective antibiotics and improvements in diet and sanitation[3].However,the recent resurgence of SF has sparked significant interest in infectious diseases[1,3].Given the insufficient understanding of the triggers that cause SF outbreaks and the absence of available vaccines to prevent GAS infection to date[1],effective prevention and control programs are needed to manage the ongoing spread of SF. 展开更多
关键词 prevention MORTALITY LET
下载PDF
Enhancing metformin-induced tumor metabolism destruction by glucose oxidase for triple-combination therapy
15
作者 Rangrang Fan Linrui Cai +4 位作者 Hao Liu Hongxu Chen Caili Chen Gang Guo Jianguo Xu 《Journal of Pharmaceutical Analysis》 SCIE CAS CSCD 2024年第3期321-334,共14页
Despite decades of laboratory and clinical trials,breast cancer remains the main cause of cancer-related disease burden in women.Considering the metabolism destruction effect of metformin(Met)and cancer cell starvatio... Despite decades of laboratory and clinical trials,breast cancer remains the main cause of cancer-related disease burden in women.Considering the metabolism destruction effect of metformin(Met)and cancer cell starvation induced by glucose oxidase(GOx),after their efficient delivery to tumor sites,GOx and Met may consume a large amount of glucose and produce sufficient hydrogen peroxide in situ.Herein,a pH-responsive epigallocatechin gallate(EGCG)-conjugated low-molecular-weight chitosan(LC-EGCG,LE)nanoparticle(Met–GOx/Fe@LE NPs)was constructed.The coordination between iron ions(Fe3+)and EGCG in this nanoplatform can enhance the efficacy of chemodynamic therapy via the Fenton reaction.Met–GOx/Fe@LE NPs allow GOx to retain its enzymatic activity while simultaneously improving its stability.Moreover,this pH-responsive nanoplatform presents controllable drug release behavior.An in vivo biodistribution study showed that the intracranial accumulation of GOx delivered by this nanoplatform was 3.6-fold higher than that of the free drug.The in vivo anticancer results indicated that this metabolism destruction/starvation/chemodynamic triple-combination therapy could induce increased apoptosis/death of tumor cells and reduce their proliferation.This triple-combination therapy approach is promising for efficient and targeted cancer treatment. 展开更多
关键词 METFORMIN Glucose oxidase Metabolism disruption Tumor starvation Combination cancer therapy
下载PDF
Pectolinarin inhibited LPS-stimulated inflammation in microglial BV_(2) cells via NF-κB signaling pathway
16
作者 Bin-Feng Cheng Xiao Feng +8 位作者 Yu-Qian Dong Shao-Qin Jian Hao-Heng Yu Jing-Jing Li Ting Ma Jun Zhang Yao-Dong Zhang Hai-Jie Yang Lei Wang 《Traditional Medicine Research》 2024年第6期12-18,共7页
Background:Neuro-inflammation is regarded as one of the critical pathogenesis in neurodegenerative diseases,which is characterized by the activated microglial cells.Pectolinarin(Pec),a natural flavonoid that exists in... Background:Neuro-inflammation is regarded as one of the critical pathogenesis in neurodegenerative diseases,which is characterized by the activated microglial cells.Pectolinarin(Pec),a natural flavonoid that exists in many Chinese herbal medicines,has been reported to have various biological activities.However,the effects and mechanisms on neuro-inflammation are not clear.Methods:In this study,the inhibitory effects and mechanisms of Pec on neuro-inflammation were investigated in the LPS-stimulated microglial BV_(2) cells.BV_(2) microglial cells were treated with Pec or vehicle,followed by LPS.Enzyme-linked immunosorbent assay,real-time quantitative PCR,nitric oxide and reactive oxygen species assay,and western blot were performed to examine the effects of Pec on neuro-inflammatory responses.Results:We showed that Pec significantly inhibited the expression of tumor necrosis factorαand interleukin 6 in mRNA and protein levels induced by LPS.Moreover,the production of nitric oxide,iNOS,reactive oxygen species,and COX-2 were suppressed by Pec in LPS-stimulated microglial BV_(2) cells.In addition,Pec inhibited LPS-induced inflammation via nuclear factor kappa B signaling pathway,as evidenced by the reduction of the phosphorylation of inhibitor of nuclear factor kappa-B kinase,the degradation of IκBα,and the nuclear translocation of p65.Conclusion:Taken together,Pec exhibited anti-inflammatory effects in LPS-stimulated microglial BV_(2) cells via nuclear factor kappa B signaling pathway,which might provide therapeutic potential for neuro-inflammation and neurodegenerative diseases. 展开更多
关键词 NEUROINFLAMMATION microglial cells pectolinarin NF-κB
下载PDF
SiO_(2) Induces Iron Overload and Ferroptosis in Cardiomyocytes in a Silicosis Mouse Model
17
作者 Yongheng Wang Ning Li +11 位作者 Yi Guan Tong LI Yuxiu Zhang Hong Cao Zhihua Yu Zhiheng Li Shuoyan Li Jiahao Hu Wenxin Zhou Sisi Qin Shuang Li Sanqiao Yao 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2024年第6期617-627,共11页
Objective The aim of this study was to explore the role and mechanism of ferroptosis in SiO_(2)-induced cardiac injury using a mouse model.Methods Male C57BL/6 mice were intratracheally instilled with SiO_(2) to creat... Objective The aim of this study was to explore the role and mechanism of ferroptosis in SiO_(2)-induced cardiac injury using a mouse model.Methods Male C57BL/6 mice were intratracheally instilled with SiO_(2) to create a silicosis model.Ferrostatin-1(Fer-1)and deferoxamine(DFO)were used to suppress ferroptosis.Serum biomarkers,oxidative stress markers,histopathology,iron content,and the expression of ferroptosis-related proteins were assessed.Results SiO_(2) altered serum cardiac injury biomarkers,oxidative stress,iron accumulation,and ferroptosis markers in myocardial tissue.Fer-1 and DFO reduced lipid peroxidation and iron overload,and alleviated SiO_(2)-induced mitochondrial damage and myocardial injury.SiO_(2) inhibited Nuclear factor erythroid 2-related factor 2(Nrf2)and its downstream antioxidant genes,while Fer-1 more potently reactivated Nrf2 compared to DFO.Conclusion Iron overload-induced ferroptosis contributes to SiO_(2)-induced cardiac injury.Targeting ferroptosis by reducing iron accumulation or inhibiting lipid peroxidation protects against SiO_(2) cardiotoxicity,potentially via modulation of the Nrf2 pathway. 展开更多
关键词 SiO_(2) exposure Iron overload Ferroptosis Cardiac injury NRF2
下载PDF
Mechanisms of resistance to trastuzumab in HER2-positive gastric cancer
18
作者 Zhifei Li Huan Zhao +6 位作者 Huihui Hu Haili Shang Yongjing Ren Wenhui Qiu Hao Su Huifang Lyu Xiaobing Chen 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 2024年第3期306-321,共16页
Gastric cancer is one of the most prevalent cancers worldwide,and human epidermal growth factor receptor 2(HER2)-positive cases account for approximately 20%of the total cases.Currently,trastuzumab+chemotherapy is the... Gastric cancer is one of the most prevalent cancers worldwide,and human epidermal growth factor receptor 2(HER2)-positive cases account for approximately 20%of the total cases.Currently,trastuzumab+chemotherapy is the recommended first-line treatment for patients with HER2-positive advanced gastric cancer,and the combination has exhibited definite efficacy in HER2-targeted therapy.However,the emergence of drug resistance during treatment considerably reduces its effectiveness;thus,it is imperative to investigate the potential mechanisms underlying resistance.In the present review article,we comprehensively introduce multiple mechanisms underlying resistance to trastuzumab in HER2-positive gastric cancer cases,aiming to provide insights for rectifying issues associated with resistance to trastuzumab and devising subsequent treatment strategies. 展开更多
关键词 HER2 gastric cancer TRASTUZUMAB drug resistance
下载PDF
Comparative transcriptomic evidence of physiological changes and potential relationships in vertebrates under different dormancy states
19
作者 Yu-Han Niu Li-Hong Guan +4 位作者 Cheng Wang Hai-Feng Jiang Guo-Gang Li Lian-Dong Yang Shun-Ping He 《Zoological Research》 SCIE CSCD 2024年第2期341-354,共14页
Dormancy represents a fascinating adaptive strategy for organisms to survive in unforgiving environments.After a period of dormancy,organisms often exhibit exceptional resilience.This period is typically divided into ... Dormancy represents a fascinating adaptive strategy for organisms to survive in unforgiving environments.After a period of dormancy,organisms often exhibit exceptional resilience.This period is typically divided into hibernation and aestivation based on seasonal patterns.However,the mechanisms by which organisms adapt to their environments during dormancy,as well as the potential relationships between different states of dormancy,deserve further exploration.Here,we selected Perccottus glenii and Protopterus annectens as the primary subjects to study hibernation and aestivation,respectively.Based on histological and transcriptomic analysis of multiple organs,we discovered that dormancy involved a coordinated functional response across organs.Enrichment analyses revealed noteworthy disparities between the two dormant species in their responses to extreme temperatures.Notably,similarities in gene expression patterns pertaining to energy metabolism,neural activity,and biosynthesis were noted during hibernation,suggesting a potential correlation between hibernation and aestivation.To further explore the relationship between these two phenomena,we analyzed other dormancy-capable species using data from publicly available databases.This comparative analysis revealed that most orthologous genes involved in metabolism,cell proliferation,and neural function exhibited consistent expression patterns during dormancy,indicating that the observed similarity between hibernation and aestivation may be attributable to convergent evolution.In conclusion,this study enhances our comprehension of the dormancy phenomenon and offers new insights into the molecular mechanisms underpinning vertebrate dormancy. 展开更多
关键词 HIBERNATION AESTIVATION Multi-organs Convergent evolution
下载PDF
Prognostic and immunological roles of heat shock protein A4 in lung adenocarcinoma
20
作者 Xuan Wu Shen-Ying Yang +4 位作者 Yi-Hua Zhang Jin-Zhou Fang Shuai Wang Zhi-Wei Xu Xiao-Ju Zhang 《World Journal of Clinical Oncology》 2024年第1期45-61,共17页
BACKGROUND Heat shock protein A4(HSPA4)belongs to molecular chaperone protein family which plays important roles within variable cellular activities,including cancer initiation and progression.However,the prognostic a... BACKGROUND Heat shock protein A4(HSPA4)belongs to molecular chaperone protein family which plays important roles within variable cellular activities,including cancer initiation and progression.However,the prognostic and immunological significance of HSPA4 in lung adenocarcinoma(LUAD)has not been revealed yet.AIM To explore the prognostic and immunological roles of HSPA4 to identify a novel prognostic biomarker and therapeutic target for LUAD.METHODS We assessed the prognostic and immunological significance of HSPA4 in LUAD using data from The Cancer Genome Atlas database.The association between HSPA4 expression and clinical-pathological features was assessed through Kruskal-Wallis and Wilcoxon signed-rank test.Univariate/multivariate Cox regression analyses and Kaplan-Meier curves were employed to evaluate prognostic factors,including HSPA4,in LUAD.Gene set enrichment analysis(GSEA)was conducted to identify the key signaling pathways associated with HSPA4.The correlation between HSPA4 expression and cancer immune infiltration was evaluated using single-sample gene set enrichment analysis(ssGSEA).RESULTS Overexpressing HSPA4 was significantly related to advanced pathologic TNM stage,advanced pathologic stage,progression disease status of primary therapy outcome and female subgroups with LUAD.In addition,increased HSPA4 expression was found to be related to worse disease-specific survival and overall survival.GSEA analysis indicated a significant correlation between HSPA4 and cell cycle regulation and immune response,particularly through diminishing the function of cytotoxicity cells and CD8 T cells.The ssGSEA algorithm showed a positive correlation between HSPA4 expression and infiltrating levels of Th2 cells,while a negative correlation was observed with cytotoxic cell infiltration levels.CONCLUSION Our findings indicate HSPA4 is related to prognosis and immune cell infiltrates and may act as a novel prognostic biomarker and therapeutic target for LUAD. 展开更多
关键词 Heat shock protein A4 Lung adenocarcinoma Tumor-infiltration Prognosis T helper cells
下载PDF
上一页 1 2 16 下一页 到第
使用帮助 返回顶部