期刊文献+
共找到47,163篇文章
< 1 2 250 >
每页显示 20 50 100
补阳还五汤对脑缺血再灌注大鼠线粒体氧化损伤和PKCε-Nampt通路的影响
1
作者 尹美娟 刘真一 +4 位作者 靳晓飞 周晓红 高钰 赵月眸 高维娟 《中成药》 CAS CSCD 北大核心 2024年第1期79-86,共8页
目的探讨补阳还五汤对脑缺血再灌注(I/R)大鼠线粒体氧化损伤及PKCε-Nampt通路的影响。方法大鼠随机分为假手术组、模型组、补阳还五汤组(14.3 g/kg)和依达拉奉组(3 mg/kg),除假手术组外均采用MCAO法建立脑I/R损伤模型,术后24 h各组给... 目的探讨补阳还五汤对脑缺血再灌注(I/R)大鼠线粒体氧化损伤及PKCε-Nampt通路的影响。方法大鼠随机分为假手术组、模型组、补阳还五汤组(14.3 g/kg)和依达拉奉组(3 mg/kg),除假手术组外均采用MCAO法建立脑I/R损伤模型,术后24 h各组给予相应剂量药物,给药7 d后通过神经功能评分评估神经功能缺损情况,免疫荧光检测神经元标志物MAP-2表达,观察神经元损伤情况,检测ROS、MDA水平和SOD活性评价氧化损伤情况,荧光探针JC-1检测线粒体膜电位变化,修饰酶循环法检测NAD^(+)/NADH比值,Western blot法检测PKCε、p-PKCε、Nampt蛋白表达,免疫组化法检测p-PKCε、Nampt蛋白阳性表达。结果与模型组比较,补阳还五汤组脑梗死体积、神经功能评分降低(P<0.05),脑组织MAP-2荧光强度增强(P<0.05),神经元损伤减轻,脑组织ROS、MDA水平降低(P<0.05),SOD活性、线粒体膜电位、NAD^(+)/NADH比值升高(P<0.05),p-PKCε、Nampt蛋白表达升高(P<0.05)。结论补阳还五汤可通过激活PKCε-Nampt信号通路、提高线粒体功能来减轻大鼠脑I/R损伤。 展开更多
关键词 补阳还五汤 脑缺血再灌注损伤 线粒体 pkcΕ NAMPT
下载PDF
PKC/TRPV1通路在大鼠三叉神经痛中的病理作用
2
作者 吴贝贝 沈莲 +1 位作者 王元银 王烈成 《安徽医科大学学报》 CAS 北大核心 2024年第5期846-851,共6页
目的探究蛋白激酶C(PKC)/瞬时感受器电位香草酸亚型1(TRPV1)通路在大鼠三叉神经疼痛(TN)中的病理作用。方法采用眶下神经慢性收缩术(ION-CCI)来创建大鼠TN的模型。将大鼠随机分为假手术组(Sham组)、CCI组、CCI+DMSO组、CCI+GF109203X(... 目的探究蛋白激酶C(PKC)/瞬时感受器电位香草酸亚型1(TRPV1)通路在大鼠三叉神经疼痛(TN)中的病理作用。方法采用眶下神经慢性收缩术(ION-CCI)来创建大鼠TN的模型。将大鼠随机分为假手术组(Sham组)、CCI组、CCI+DMSO组、CCI+GF109203X(双吲哚马来酰亚胺,一种PKC抑制剂)组。使用Von Frey毛刷检测大鼠的机械痛阈。采用qRT-PCR及Western blot分别检测三叉神经节(TG)内PKC和TRPV1表达量的变化。HE染色观察TG的病理变化。结果CCI组大鼠机械痛阈降低(P<0.05),大鼠TG内的磷酸化的PKC(p-PKC)和TRPV1表达显著增加(P<0.05)。组织病理学结果显示,与Sham组相比,CCI组观察到TG出现明显的炎性细胞浸润增多、神经细胞肿胀等变化。注射GF109203X后降低了大鼠TG内PKC的磷酸化和TRPV1的表达,大鼠机械痛阈升高(P<0.05),光学显微镜下可见TG内细胞肿胀和炎症细胞有所减少。结论PKC/TRPV1通路可能参与了大鼠的三叉神经痛。 展开更多
关键词 pkc TRPV1 TG 三叉神经痛 机械痛阈
下载PDF
Risk of hepatitis B virus reactivation in oncological patients treated with tyrosine kinase inhibitors:A case report and literature analysis 被引量:4
3
作者 Francesca Colapietro Nicola Pugliese +2 位作者 Antonio Voza Alessio Aghemo Stella De Nicola 《World Journal of Gastroenterology》 SCIE CAS 2024年第9期1253-1256,共4页
Hepatitis B virus(HBV)reactivation(HBVr)represents a severe and potentially life-threatening condition,and preventive measures are available through blood test screening or prophylactic therapy administration.The asse... Hepatitis B virus(HBV)reactivation(HBVr)represents a severe and potentially life-threatening condition,and preventive measures are available through blood test screening or prophylactic therapy administration.The assessment of HBVr traditionally considers factors such as HBV profile,including hepatitis B surface antigen(HBsAg)and antibody to hepatitis B core antigen,along with type of medication(chemotherapy;immunomodulants).Nevertheless,consideration of possible patient’s underlying tumor and the specific malignancy type(solid or hematologic)plays a crucial role and needs to be assessed for decision-making process. 展开更多
关键词 Chronic hepatitis B REACTIVATION Nucleoside analogue Tyrosine kinase inhibitors Onco-hematology
下载PDF
Immune checkpoint inhibitor-associated gastritis:Patterns and management 被引量:3
4
作者 Jing Lin Zhong-Qiao Lin +1 位作者 Shi-Cheng Zheng Yu Chen 《World Journal of Gastroenterology》 SCIE CAS 2024年第14期1941-1948,共8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 cessation of ICIs.Although irAE gastritis is rarely reported,it may lead to serious complications such as gastrorrhagia.Furthermore,irAE gastritis is often difficult to identify early due to its diverse symptoms.Although steroid hormones and immunosuppressants are commonly used to reverse irAEs,the best regimen and dosage for irAE gastritis remains uncertain.In addition,the risk of recurrence of irAE gastritis after the reuse of ICIs should be considered.In this editorial,strategies such as early identification,pathological diagnosis,mana-gement interventions,and immunotherapy rechallenge are discussed to enable clinicians to better manage irAE gastritis and improve the prognosis of these patients. 展开更多
关键词 IMMUNOTHERAPY Immune checkpoint inhibitor Immune-related adverse events Immune checkpoint inhibitor-related gastritis
下载PDF
基于PKCβ/Erk1/2/NF-κB信号通路探讨补中益气汤对自身免疫性甲状腺炎小鼠的影响
5
作者 罗玥 刘子玉 +3 位作者 王智民 赵卓 王梦真 杨潇 《中国中医药信息杂志》 CAS CSCD 2024年第11期123-128,共6页
目的观察补中益气汤对自身免疫性甲状腺炎(AIT)小鼠PKCβ/Erk1/2/NF-κB信号通路的影响,探讨其治疗AIT的作用机制。方法80只8周龄NOD.H-2^(h4)小鼠随机分为对照组、模型组、中药组和硒酵母片组,每组20只。对照组饮用蒸馏水,其余各组予0.... 目的观察补中益气汤对自身免疫性甲状腺炎(AIT)小鼠PKCβ/Erk1/2/NF-κB信号通路的影响,探讨其治疗AIT的作用机制。方法80只8周龄NOD.H-2^(h4)小鼠随机分为对照组、模型组、中药组和硒酵母片组,每组20只。对照组饮用蒸馏水,其余各组予0.05%碘化钠溶液自由饮用8周建立AIT小鼠模型。各给药组灌胃给予相应药物给药8周。HE染色观察甲状腺组织形态,ELISA测定血清甲状腺球蛋白抗体(TGAb)、甲状腺过氧化物酶抗体(TPOAb)含量,RT-qPCR检测甲状腺组织蛋白激酶Cβ(PKCβ)、细胞外信号调节蛋白激酶1/2(Erk1/2)、核因子(NF)-κBp65、维甲酸相关孤儿受体γt(RORγt)和白细胞介素(IL)-17 mRNA表达,Western blot检测甲状腺组织PKCβ、Erk1/2、NF-κBp65、RORγt、IL-17蛋白表达。结果与对照组比较,模型组小鼠甲状腺组织出现大量淋巴细胞浸润,血清TGAb、TPOAb含量明显升高(P<0.001),甲状腺组织PKCβ、Erk1/2、NF-κBp65、RORγt、IL-17 mRNA和蛋白表达明显升高(P<0.001);与模型组比较,中药组和硒酵母片组小鼠甲状腺组织淋巴细胞浸润减轻,血清TGAb、TPOAb含量明显降低(P<0.001),甲状腺组织PKCβ、Erk1/2、NF-κBp65、RORγt、IL-17 mRNA和蛋白表达明显降低(P<0.001),中药组与硒酵母片组各指标差异无统计学意义(P>0.05)。结论补中益气汤可能通过调控PKCβ/Erk1/2/NF-κB信号通路减轻AIT小鼠炎症反应,改善甲状腺组织淋巴细胞浸润状态。 展开更多
关键词 补中益气汤 自身免疫性甲状腺炎 pkcβ/Erk1/2/NF-κB信号通路 免疫 小鼠
下载PDF
Hepatic arterial infusion chemotherapy with anti-angiogenesis agents and immune checkpoint inhibitors for unresectable hepatocellular carcinoma and meta-analysis 被引量:4
6
作者 Yu-Zhe Cao Guang-Lei Zheng +4 位作者 Tian-Qi Zhang Hong-Yan Shao Jia-Yu Pan Zi-Lin Huang Meng-Xuan Zuo 《World Journal of Gastroenterology》 SCIE CAS 2024年第4期318-331,共14页
BACKGROUND Hepatic arterial infusion chemotherapy(HAIC)has been proven to be an ideal choice for treating unresectable hepatocellular carcinoma(uHCC).HAIC-based treatment showed great potential for treating uHCC.Howev... BACKGROUND Hepatic arterial infusion chemotherapy(HAIC)has been proven to be an ideal choice for treating unresectable hepatocellular carcinoma(uHCC).HAIC-based treatment showed great potential for treating uHCC.However,large-scale studies on HAIC-based treatments and meta-analyses of first-line treatments for uHCC are lacking.AIM To investigate better first-line treatment options for uHCC and to assess the safety and efficacy of HAIC combined with angiogenesis inhibitors,programmed cell death of protein 1(PD-1)and its ligand(PD-L1)blockers(triple therapy)under real-world conditions.METHODS Several electronic databases were searched to identify eligible randomized controlled trials for this meta-analysis.Study-level pooled analyses of hazard ratios(HRs)and odds ratios(ORs)were performed.This was a retrospective single-center study involving 442 patients with uHCC who received triple therapy or angiogenesis inhibitors plus PD-1/PD-L1 blockades(AIPB)at Sun Yat-sen University Cancer Center from January 2018 to April 2023.Propensity score matching(PSM)was performed to balance the bias between the groups.The Kaplan-Meier method and cox regression were used to analyse the survival data,and the log-rank test was used to compare the suvival time between the groups.RESULTS A total of 13 randomized controlled trials were included.HAIC alone and in combination with sorafenib were found to be effective treatments(P values for ORs:HAIC,0.95;for HRs:HAIC+sorafenib,0.04).After PSM,176 HCC patients were included in the analysis.The triple therapy group(n=88)had a longer median overall survival than the AIPB group(n=88)(31.6 months vs 14.6 months,P<0.001)and a greater incidence of adverse events(94.3%vs 75.4%,P<0.001).CONCLUSION This meta-analysis suggests that HAIC-based treatments are likely to be the best choice for uHCC.Our findings confirm that triple therapy is more effective for uHCC patients than AIPB. 展开更多
关键词 Unresectable hepatocellular carcinoma Hepatic arterial infusion chemotherapy Angiogenesis inhibitors Programmed cell death protein 1 Programmed death ligand 1
下载PDF
Sodium-dependent glucose transporter 2 inhibitors effects on myocardial function in patients with type 2 diabetes and asymptomatic heart failure 被引量:1
7
作者 Petra Grubić Rotkvić Luka Rotkvić +1 位作者 Ana Đuzel Čokljat Maja Cigrovski Berković 《World Journal of Cardiology》 2024年第8期448-457,共10页
BACKGROUND Sodium-dependent glucose transporter 2 inhibitors(SGLT2i)have shown efficacy in reducing heart failure(HF)burden in a very heterogeneous groups of patients,raising doubts about some contemporary assumptions... BACKGROUND Sodium-dependent glucose transporter 2 inhibitors(SGLT2i)have shown efficacy in reducing heart failure(HF)burden in a very heterogeneous groups of patients,raising doubts about some contemporary assumptions of their mechanism of action.We previously published a prospective observational study that evaluated mechanisms of action of SGLT2i in patients with type 2 diabetes who were in HF stages A and B on dual hypoglycemic therapy.Two groups of patients were included in the study:the ones receiving SGLT2i as an add-on agent to metformin and the others on dipeptidyl peptidase-4 inhibitors as an add-on to metformin due to suboptimal glycemic control.AIM To evaluate the outcomes regarding natriuretic peptide,oxidative stress,inflammation,blood pressure,heart rate,cardiac function,and body weight.METHODS The study outcomes were examined by dividing each treatment arm into two subgroups according to baseline parameters of global longitudinal strain(GLS),N-terminal pro-brain natriuretic peptide,myeloperoxidase(MPO),high-sensitivity C-reactive protein(hsCRP),and systolic and diastolic blood pressure.To evaluate the possible predictors of observed changes in the SGLT2i arm during follow-up,a rise in stroke volume index,body mass index(BMI)decrease,and lack of heart rate increase,linear regression analysis was performed.RESULTS There was a greater reduction of MPO,hsCRP,GLS,and blood pressure in the groups with higher baseline values of mentioned parameters irrespective of the therapeutic arm after 6 months of follow-up.Significant independent predictors of heart rate decrease were a reduction in early mitral inflow velocity to early diastolic mitral annular velocity at the interventricular septal annulus ratio and BMI,while the predictor of stroke volume index increase was SGLT2i therapy itself.CONCLUSION SGLT2i affect body composition,reduce cardiac load,improve diastolic/systolic function,and attenuate the sympathetic response.Glycemic control contributes to the improvement of heart function,blood pressure control,oxidative stress,and reduction in inflammation. 展开更多
关键词 Sodium-dependent glucose transporter 2 inhibitors Dipeptidyl peptidase-4 inhibitors Type 2 diabetes mellitus Heart failure Diabetic cardiomyopathy Cardiovascular disease
下载PDF
Molecular insights into clinical trials for immune checkpoint inhibitors in colorectal cancer:Unravelling challenges and future directions 被引量:2
8
作者 Samantha Sharma Naresh Singh +5 位作者 Anita Ahmed Turk Isabella Wan Akshay Guttikonda Julia Lily Dong Xinna Zhang Mateusz Opyrchal 《World Journal of Gastroenterology》 SCIE CAS 2024年第13期1815-1835,共21页
Colorectal cancer(CRC)is a complex disease with diverse etiologies and clinical outcomes.Despite considerable progress in development of CRC therapeutics,challenges remain regarding the diagnosis and management of adv... Colorectal cancer(CRC)is a complex disease with diverse etiologies and clinical outcomes.Despite considerable progress in development of CRC therapeutics,challenges remain regarding the diagnosis and management of advanced stage metastatic CRC(mCRC).In particular,the five-year survival rate is very low since mCRC is currently rarely curable.Over the past decade,cancer treatment has significantly improved with the introduction of cancer immunotherapies,specifically immune checkpoint inhibitors.Therapies aimed at blocking immune checkpoints such as PD-1,PD-L1,and CTLA-4 target inhibitory pathways of the immune system,and thereby enhance anti-tumor immunity.These therapies thus have shown promising results in many clinical trials alone or in combination.The efficacy and safety of immunotherapy,either alone or in combination with CRC,have been investigated in several clinical trials.Clinical trials,including KEYNOTE-164 and CheckMate 142,have led to Food and Drug Administration approval of the PD-1 inhibitors pembrolizumab and nivolumab,respectively,for the treatment of patients with unresectable or metastatic microsatellite instability-high or deficient mismatch repair CRC.Unfortunately,these drugs benefit only a small percentage of patients,with the benefits of immunotherapy remaining elusive for the vast majority of CRC patients.To this end,primary and secondary resistance to immunotherapy remains a significant issue,and further research is necessary to optimize the use of immunotherapy in CRC and identify biomarkers to predict the response.This review provides a comprehensive overview of the clinical trials involving immune checkpoint inhibitors in CRC.The underlying rationale,challenges faced,and potential future steps to improve the prognosis and enhance the likelihood of successful trials in this field are discussed. 展开更多
关键词 Colorectal cancer Immune checkpoint inhibitors Clinical trials Immunotherapy Microsatellite instability Microsatellite stability DNA mismatch repair
下载PDF
Hepatocellular carcinoma immune microenvironment and check point inhibitors-current status 被引量:2
9
作者 Tarana Gupta Nikhil Sai Jarpula 《World Journal of Hepatology》 2024年第3期353-365,共13页
Hepatocellular carcinoma(HCC)is the most common primary tumor of the liver and has a high mortality rate.The Barcelona Clinic Liver Cancer staging system in addition to tumor staging also links the modality of treatme... Hepatocellular carcinoma(HCC)is the most common primary tumor of the liver and has a high mortality rate.The Barcelona Clinic Liver Cancer staging system in addition to tumor staging also links the modality of treatment available to a particular stage.The recent description of the tumor microenvironment(TME)in HCC has provided a new concept of immunogenicity within the HCC.Virusrelated HCC has been shown to be more immunogenic with higher expression of cytotoxic T lymphocytes and decreased elements for immunosuppression such as regulatory T cells.This immunogenic milieu provides a better response to immunotherapy especially immune checkpoint inhibitors(ICIs).In addition,the recent data on combining locoregional therapies and other strategies may convert the less immunogenic state of the TME towards higher immunogenicity.Therefore,data are emerging on the use of combinations of locoregional therapy and ICIs in unresectable or advanced HCC and has shown better survival outcomes in this difficult population. 展开更多
关键词 Hepatocellular carcinoma Tumor immune microenvironment Immune checkpoint inhibitor Atezolizumab BEVACIZUMAB Pembrolizumab
下载PDF
Effects of proton pump inhibitors on inflammatory bowel disease:An updated review 被引量:2
10
作者 Yu Liang Zhen Meng +1 位作者 Xue-Li Ding Man Jiang 《World Journal of Gastroenterology》 SCIE CAS 2024年第21期2751-2762,共12页
Inflammatory bowel disease(IBD)is believed to be caused by various factors,including abnormalities in disease susceptibility genes,environmental factors,immune factors,and intestinal bacteria.Proton pump inhibitors(PP... Inflammatory bowel disease(IBD)is believed to be caused by various factors,including abnormalities in disease susceptibility genes,environmental factors,immune factors,and intestinal bacteria.Proton pump inhibitors(PPIs)are the primary drugs used to treat acid-related diseases.They are also commonly prescribed to patients with IBD.Recent studies have suggested a potential association between the use of certain medications,such as PPIs,and the occurrence and progression of IBD.In this review,we summarize the potential impact of PPIs on IBD and analyze the underlying mechanisms.Our findings may provide insights for conducting further investigations into the effects of PPIs on IBD and serve as an important reminder for physicians to exercise caution when prescribing PPIs to patients with IBD. 展开更多
关键词 Drug safety Proton pump inhibitor Inflammatory bowel disease Ulcerative colitis Crohn’s disease
下载PDF
2-APB通过PKCα/HIF-1α信号通路抑制H_(2)O_(2)诱导的软骨细胞凋亡
11
作者 欧阳紫微 董雷 +5 位作者 王琰 程远志 朱仁弟 周仁鹏 赵英杰 胡伟 《安徽医科大学学报》 CAS 北大核心 2024年第7期1150-1156,共7页
目的探讨2-氨基乙氧基苯硼酸(2-APB)对H_(2)O_(2)诱导的软骨细胞凋亡的作用及其机制。方法实验分为Control组、H_(2)O_(2)组、2-APB组和H_(2)O_(2)+2-APB组。CCK-8法检测各组细胞活力;显微镜下观察2-APB对H_(2)O_(2)诱导的软骨细胞形态... 目的探讨2-氨基乙氧基苯硼酸(2-APB)对H_(2)O_(2)诱导的软骨细胞凋亡的作用及其机制。方法实验分为Control组、H_(2)O_(2)组、2-APB组和H_(2)O_(2)+2-APB组。CCK-8法检测各组细胞活力;显微镜下观察2-APB对H_(2)O_(2)诱导的软骨细胞形态变化的影响;TUNEL法和流式细胞术检测软骨细胞凋亡情况;流式细胞术检测脂质活性氧(ROS)水平;Western blot法检测2-APB对H_(2)O_(2)诱导的各组细胞中Cleaved-PARP、p-PKCα和HIF-1α蛋白的表达情况;免疫荧光法检测PKCα抑制剂BIM-Ⅰ对H_(2)O_(2)诱导的各组细胞中HIF-1α的荧光表达情况。结果2-APB对H_(2)O_(2)诱导的软骨细胞凋亡具有抑制作用,且当2-APB浓度为100μmol/L时抑制效果最为显著(F=235.80,P<0.01);2-APB能够抑制H_(2)O_(2)所致软骨细胞凋亡阳性率(F=114.80,P<0.01)以及ROS的水平(F=52.99,P<0.01),并且抑制Cleaved-PARP(F=10.10,P<0.05)、p-PKCα(F=24.56,P<0.05)和HIF-1α(F=6.85,P<0.05)蛋白的表达;PKCα抑制剂BIM-Ⅰ能够抑制H_(2)O_(2)所致HIF-1α荧光强度的增加。结论2-APB可以通过抑制PKCα/HIF-1α通路减少H_(2)O_(2)诱导的软骨细胞凋亡,进而保护软骨细胞。 展开更多
关键词 2-氨基乙氧基苯硼酸 软骨细胞 细胞凋亡 H_(2)O_(2) pkcα/HIF-1α通路
下载PDF
Transcatheter arterial chemoembolization combined with PD-1 inhibitors and Lenvatinib for hepatocellular carcinoma with portal vein tumor thrombus 被引量:1
12
作者 Hong-Xiao Wu Xiao-Yan Ding +4 位作者 Ya-Wen Xu Ming-Hua Yu Xiao-Mi Li Na Deng Jing-Long Chen 《World Journal of Gastroenterology》 SCIE CAS 2024年第8期843-854,共12页
BACKGROUND Hepatocellular carcinoma(HCC)patients complicated with portal vein tumor thrombus(PVTT)exhibit poor prognoses and treatment responses.AIM To investigate efficacies and safety of the combination of PD-1 inhi... BACKGROUND Hepatocellular carcinoma(HCC)patients complicated with portal vein tumor thrombus(PVTT)exhibit poor prognoses and treatment responses.AIM To investigate efficacies and safety of the combination of PD-1 inhibitor,transcatheter arterial chemoembolization(TACE)and Lenvatinib in HCC subjects comorbid with PVTT.METHODS From January 2019 to December 2020,HCC patients with PVTT types Ⅰ-Ⅳ were retrospectively enrolled at Beijing Ditan Hospital.They were distributed to either the PTL or TACE/Lenvatinib(TL)group.The median progression-free survival(mPFS)was set as the primary endpoint,while parameters like median overall survival,objective response rate,disease control rate(DCR),and toxicity level served as secondary endpoints.RESULTS Forty-one eligible patients were finally recruited for this study and divided into the PTL(n=18)and TL(n=23)groups.For a median follow-up of 21.8 months,the DCRs were 88.9%and 60.9%in the PTL and TL groups(P=0.046),res-pectively.Moreover,mPFS indicated significant improvement(HR=0.25;P<0.001)in PTL-treated patients(5.4 months)compared to TL-treated(2.7 months)patients.There were no treatment-related deaths or differences in adverse events in either group.CONCLUSION A triplet regimen of PTL was safe and well-tolerated as well as exhibited favorable efficacy over the TL regimen for advanced-stage HCC patients with PVTT types Ⅰ-Ⅳ. 展开更多
关键词 Hepatocellular carcinoma Transcatheter arterial chemoembolization Lenvatinib PD-1 inhibitor Portal vein tumor thrombus
下载PDF
Evaluating the influence of sarcopenia and myosteatosis on clinical outcomes in gastric cancer patients undergoing immune checkpoint inhibitor 被引量:1
13
作者 Gui-Ming Deng Hai-Bin Song +3 位作者 Zhong-Ze Du Ying-Wei Xue Hong-Jiang Song Yuan-Zhou Li 《World Journal of Gastroenterology》 SCIE CAS 2024年第8期863-880,共18页
BACKGROUND The development and progression of gastric cancer(GC)are closely linked to the nutritional status of patients.Although immunotherapy has been demonstrated to be clinically effective,the relationships of sar... BACKGROUND The development and progression of gastric cancer(GC)are closely linked to the nutritional status of patients.Although immunotherapy has been demonstrated to be clinically effective,the relationships of sarcopenia and myosteatosis with the use of immune checkpoint inhibitors(ICIs)in patients with gastric cancer remain to be characterized.METHODS We performed a retrospective study of patients who were undergoing immuno-therapy for GC.For the evaluation of sarcopenia,the optimal cut-off value for the skeletal muscle index was established using receiver operating characteristic analysis of data obtained from pre-treatment computed tomography images at the L3 vertebral level.Myosteatosis was defined using the mean skeletal muscle density(SMD),with a threshold value of<41 Hounsfield units(HU)for patients with a body mass index(BMI)<25 kg/m^(2)and<33 HU for those with a BMI≥25 kg/m^(2).The log-rank test was used to compare progression-free survival(PFS)and overall survival(OS),and a Cox proportional hazard model was used to identify prognostic factors.Nomograms were developed to predict the PFS and OS of patients on the basis of the results of multivariate analyses.RESULTS We studied 115 patients who were undergoing ICI therapy for GC,of whom 27.4%had sarcopenia and 29.8%had myosteatosis.Patients with sarcopenia or myosteatosis had significantly shorter PFS and OS than those without these conditions.Furthermore,both sarcopenia and myosteatosis were found to be independent predictors of PFS and OS in patients with GC administering an ICI.The prediction models created for PFS and OS were associated with C-indexes of 0.758 and 0.781,respectively.CONCLUSION The presence of sarcopenia or myosteatosis is a reliable predictor of the clinical outcomes of patients with GC who are undergoing treatment with an ICI. 展开更多
关键词 Gastric cancer SARCOPENIA Myosteatosis Immune checkpoint inhibitor Prognostic factor Overall survival Progression-free survival
下载PDF
Type-B monoamine oxidase inhibitors in neurological diseases:clinical applications based on preclinical findings 被引量:2
14
作者 Marika Alborghetti Edoardo Bianchini +3 位作者 Lanfranco De Carolis Silvia Galli Francesco E.Pontieri Domiziana Rinaldi 《Neural Regeneration Research》 SCIE CAS CSCD 2024年第1期16-21,共6页
Type-B monoamine oxidase inhibitors,encompassing selegiline,rasagiline,and safinamide,are available to treat Parkinson's disease.These drugs ameliorate motor symptoms and improve motor fluctuation in the advanced ... Type-B monoamine oxidase inhibitors,encompassing selegiline,rasagiline,and safinamide,are available to treat Parkinson's disease.These drugs ameliorate motor symptoms and improve motor fluctuation in the advanced stages of the disease.There is also evidence suppo rting the benefit of type-B monoamine oxidase inhibitors on non-motor symptoms of Parkinson's disease,such as mood deflection,cognitive impairment,sleep disturbances,and fatigue.Preclinical studies indicate that type-B monoamine oxidase inhibitors hold a strong neuroprotective potential in Parkinson's disease and other neurodegenerative diseases for reducing oxidative stress and stimulating the production and release of neurotrophic factors,particularly glial cell line-derived neurotrophic factor,which suppo rt dopaminergic neurons.Besides,safinamide may interfere with neurodegenerative mechanisms,countera cting excessive glutamate overdrive in basal ganglia motor circuit and reducing death from excitotoxicity.Due to the dual mechanism of action,the new generation of type-B monoamine oxidase inhibitors,including safinamide,is gaining interest in other neurological pathologies,and many supporting preclinical studies are now available.The potential fields of application concern epilepsy,Duchenne muscular dystrophy,multiple scle rosis,and above all,ischemic brain injury.The purpose of this review is to investigate the preclinical and clinical pharmacology of selegiline,rasagiline,and safinamide in Parkinson's disease and beyond,focusing on possible future therapeutic applications. 展开更多
关键词 glial cell line-derived neurotrophic factor(GDNF) GLUTAMATE neurological disorders NEUROPROTECTION Parkinson's disease preclinical studies RASAGILINE SAFINAMIDE SELEGILINE type-B monoamine oxidase(MAO_(B))inhibitors
下载PDF
Comparative efficacy of sodium glucose cotransporter-2 inhibitors in the management of type 2 diabetes mellitus:A real-world experience 被引量:1
15
作者 Lubna Islam Dhanya Jose +3 位作者 Mohammed Alkhalifah Dania Blaibel Vishnu Chandrabalan Joseph M Pappachan 《World Journal of Diabetes》 SCIE 2024年第3期463-474,共12页
BACKGROUND Sodium glucose cotransporter-2 inhibitors(SGLT-2i)are a class of drugs with modest antidiabetic efficacy,weight loss effect,and cardiovascular benefits as proven by multiple randomised controlled trials(RCT... BACKGROUND Sodium glucose cotransporter-2 inhibitors(SGLT-2i)are a class of drugs with modest antidiabetic efficacy,weight loss effect,and cardiovascular benefits as proven by multiple randomised controlled trials(RCTs).However,real-world data on the comparative efficacy and safety of individual SGLT-2i medications is sparse.AIM To study the comparative efficacy and safety of SGLT-2i using real-world clinical data.METHODS We evaluated the comparative efficacy data of 3 SGLT-2i drugs(dapagliflozin,canagliflozin,and empagliflozin)used for treating patients with type 2 diabetes mellitus.Data on the reduction of glycated hemoglobin(HbA1c),body weight,blood pressure(BP),urine albumin creatinine ratio(ACR),and adverse effects were recorded retrospectively.RESULTS Data from 467 patients with a median age of 64(14.8)years,294(62.96%)males and 375(80.5%)Caucasians were analysed.Median diabetes duration was 16.0(9.0)years,and the duration of SGLT-2i use was 3.6(2.1)years.SGLT-2i molecules used were dapagliflozin 10 mg(n=227;48.6%),canagliflozin 300 mg(n=160;34.3%),and empagliflozin 25 mg(n=80;17.1).Baseline median(interquartile range)HbA1c in mmol/mol were:dapagliflozin-78.0(25.3),canagliflozin-80.0(25.5),and empagliflozin-75.0(23.5)respectively.The respective median HbA1c reduction at 12 months and the latest review(just prior to the study)were:66.5(22.8)&69.0(24.0),67.0(16.3)&66.0(28.0),and 67.0(22.5)&66.5(25.8)respectively(P<0.001 for all comparisons from baseline).Significant improvements in body weight(in kilograms)from baseline to study end were noticed with dapagliflozin-101(29.5)to 92.2(25.6),and canagliflozin 100(28.3)to 95.3(27.5)only.Significant reductions in median systolic and diastolic BP,from 144(21)mmHg to 139(23)mmHg;(P=0.015),and from 82(16)mmHg to 78(19)mmHg;(P<0.001)respectively were also observed.A significant reduction of microalbuminuria was observed with canagliflozin only[ACR 14.6(42.6)at baseline to 8.9(23.7)at the study end;P=0.043].Adverse effects of SGLT-2i were as follows:genital thrush and urinary infection-20(8.8%)&17(7.5%)with dapagliflozin;9(5.6%)&5(3.13%)with canagliflozin;and 4(5%)&4(5%)with empagliflozin.Diabetic ketoacidosis was observed in 4(1.8%)with dapagliflozin and 1(0.63%)with canagliflozin.CONCLUSION Treatment of patients with SGLT-2i is associated with statistically significant reductions in HbA1c,body weight,and better than those reported in RCTs,with low side effect profiles.A review of large-scale real-world data is needed to inform better clinical practice decision making. 展开更多
关键词 Sodium glucose cotransporter-2 inhibitors Empagliflozin Canagliflozin DAPAGLIFLOZIN Type 2 diabetes mellitus Cardiovascular disease Albumin creatinine ratio DIABESITY
下载PDF
Advanced Lung Adenocarcinoma with EGFR 19-del Mutation Transformed into SCC after EGFR-tyrosine Kinase inhibitors Treatment:A Case report 被引量:1
16
作者 Xing-Zu Ji Zhong-Da Liu +4 位作者 Yi-Ping Ye Quan Li Xiao-Jing Liu Min-Hua Zhou Yi Jin 《World Journal of Clinical Cases》 SCIE 2024年第20期4405-4411,共7页
BACKGROUND Epidermal growth factor receptor tyrosine kinase inhibitors(EGFR-TKIs)significantly improve the survival of patients with Epidermal growth factor receptor(EGFR)sensitive mutations in non-small cell lung can... BACKGROUND Epidermal growth factor receptor tyrosine kinase inhibitors(EGFR-TKIs)significantly improve the survival of patients with Epidermal growth factor receptor(EGFR)sensitive mutations in non-small cell lung cancer(NSCLC).CASE SUMMARY A 67-year-old female patient in advanced lung adenocarcinoma suffered from drug resistance after EGFR-TKIs treatment.Secondary pathological tissue biopsy confirmed squamous cell carcinoma(SCC)transformation.Patients inevitably encountered drug resistance issues after receiving EGFR-TKIs treatment for a certain period of time,while EGFR-TKIs can significantly improve the survival of patients with EGFR-sensitive mutations in NSCLC.Notably,EGFR-TKIs resistance includes primary and acquired.Pathological transformation is one of the mechanisms of acquired resistance in EGFR-TKIs,with SCC transformation being relatively rare.Our results provide more detailed results of the patient’s diagnosis and treatment process on SCC transformation after EGFR-TKIs treatment for lung adenocarcinoma.CONCLUSION Squamous cell carcinoma transformation is one of the acquired resistance mechanisms of EGFR-TKIs in advanced lung adenocarcinoma with EGFR mutations. 展开更多
关键词 Lung adenocarcinoma Squamous cell carcinoma Pathological histological transformation Epidermal growth factor receptor tyrosine kinase inhibitors Drug resistance Case report
下载PDF
Comparative assessment of natural and synthetic reproductive inhibitors in Oreochromis niloticus
17
作者 Rafia Jamal Farkhanda Asad +1 位作者 Shabana Naz Syed Makhdoom Hussain 《International Journal of Agricultural and Biological Engineering》 SCIE 2024年第5期284-292,共9页
Nowadays, natural sources of sex reversal agents are preferred over synthetic ones in fish farming due to their reliability and economic value. This study compared the effectiveness of 17α-methyltestosterone (MT), Ca... Nowadays, natural sources of sex reversal agents are preferred over synthetic ones in fish farming due to their reliability and economic value. This study compared the effectiveness of 17α-methyltestosterone (MT), Carica papaya seed meal (PSM), and common carp testes (CCT) with tilapia (Oreochromis niloticus) in terms of sex reversal, hematological parameters, gonadal histology, enzymatic activity, and overall growth. A 90-day trial was conducted with 560 tilapia fry (2- 3 days old) distributed into one control and six treatment aquaria, each with two replicates. Fries were fed with a control diet (T0) or one of six experimental diets (T1-T6) containing different MT, PSM, or CCT levels for 30 days, followed by the control diet for 60 days. MT induced the highest male proportion (85% and 75% in T2 and T1, respectively), while PSM and CCT enhanced tilapia’s growth and carcass composition. Histological analysis revealed gonadal deformities in MT and PSM treatments, which might lead to sterility. The gonadosomatic index (GSI) was reduced in natural treatments as compared with synthetic ones. Hematological parameters did not show any adverse effects of PSM and CCT. Protease and amylase activities were higher in PSM and CCT than in MT, indicating better digestion and feed absorption. PSM and CCT are biodegradable, locally available, and eco-friendly alternatives to synthetic hormones to change sex in tilapia. Natural sources (plant and animal by-products) are preferable to synthetic sources as they are less expensive and control prolific breeding in tilapia. 展开更多
关键词 sex reversal natural reproductive inhibitors synthetic reproductive inhibitors Oreochromis niloticus Carica papaya
原文传递
Clinical benefit and safety profile of cross-line therapy with CDK4/6 inhibitors:a retrospective study of HR+/HER2–advanced breast cancer
18
作者 Qi Zhao Mingxia Jiang +11 位作者 Jiaxuan Liu Mengqi Zhang Maiyue He Shihan Zhou Jiani Wang Hongnan Mo Bo Lan Peng Yuan Pin Zhang Fei Ma Qiao Li Binghe Xu 《Cancer Biology & Medicine》 SCIE CAS CSCD 2024年第10期934-950,共17页
Objective:CDK4/6 inhibitors(CDK4/6is)in combination with endocrine therapy have secured a central role in the treatment of hormone receptor(HR)-positive advanced breast cancer(ABC)and have transformed the therapeutic ... Objective:CDK4/6 inhibitors(CDK4/6is)in combination with endocrine therapy have secured a central role in the treatment of hormone receptor(HR)-positive advanced breast cancer(ABC)and have transformed the therapeutic landscape.Cross-line CDK4/6i therapy in which another CDK4/6i is continued after progression on a prior CDK4/6i may still offer advantageous therapeutic effects.Cross-line CDK4/6i therapy is an area of active investigation in the ongoing pursuit to improve outcomes for patients with HR+/human epidermal growth factor receptor 2(HER2)–ABC.Methods:This retrospective study enrolled 82 patients with HR+/HER2–ABC who were treated with cross-line CDK4/6is(abemaciclib,palbociclib,ribociclib,and dalpiciclib)after progression with another CDK4/6i.The primary endpoint was progression-free survival(PFS)according to version 1.1 of the Response Evaluation Criteria in Solid Tumors.Secondary endpoints included toxicity,objective response rate,disease control rate,and overall survival.Adverse events(AEs)were graded according to version 5.0 of the Common Terminology Criteria for Adverse Events,as promulgated by the U.S.Department of Health and Human Services.Results:Eighty-two HR+/HER2–ABC patients who received cross-line CDK4/6i therapy from January 2022 to February 2024 were enrolled.The median age of the patients was 60 years.The median PFS of all patients was 7.6 months(95%CI,5.9-9.2).Cox regression analysis identified lung metastasis and a switch to endocrine therapy following prior CDK4/6i therapy as independent predictive factors for PFS.Notably,patients who previously received abemaciclib and switched to palbociclib upon disease progression had a median PFS of 10.7 months.The strategy of transitioning to chemotherapy after progression on a prior CDK4/6i,then to a subsequent CDK4/6i merits further investigation.Hematologic toxicity was the most common grade≥3 AEs.No instances of fatal safety events were observed.Conclusions:Cross-line CDK4/6i therapy is associated with significant clinical benefits and manageable safety profiles in patients with HR+/HER2–ABC,which underscores cross-line CDK4/6i therapy potential as an effective treatment strategy. 展开更多
关键词 Breast cancer prior CDK4/6 inhibitor therapy cross-line CDK4/6 inhibitor therapy PFS
下载PDF
In Silico Screening of Potential Inhibitors against dPLA2 from Named Chinese Herbs for Identification of Compounds with Antivenom Effects Due to Deinagkistrodon acutus Snake Bites
19
作者 Xingyang Xiao Mengyi Lai +3 位作者 Zechang Rao Jianzhong Huang Yiwei Xie Hongbin Zhang 《American Journal of Molecular Biology》 CAS 2024年第3期107-125,共19页
Phospholipase A2 (PLA2) is the key enzyme to the venom from Deinagkistrodon acutus which is one of the highly venomous snakes in China. In addition to being a catalyst for the hydrolysis of phospholipases A2 from snak... Phospholipase A2 (PLA2) is the key enzyme to the venom from Deinagkistrodon acutus which is one of the highly venomous snakes in China. In addition to being a catalyst for the hydrolysis of phospholipases A2 from snake venom, its well known that it possesses a broad spectrum of pharmacological activities, such as myotoxicity, neurotoxicity, cardiotoxicity, and hemolytic, anticoagulant and antiplatelet activities. However, snakebites are not efficiently treated by conventional serum therapy. Acute wounds can still cause poisoning and death. In order to find effective inhibitors of Deinagkistrodon venom acid phospholipase A2 (dPLA2), we obtained 385 compounds in 9 Chinese herbs from the TCMSP. These compounds were further performed to virtual screen using in silico tools like ADMET analysis, molecular docking and molecular dynamics (MD) simulation. After Pharmacokinetics analysis, we found 7 candidate compounds. Besides, analysis of small molecule interactions with dPLA2 confirmed that the amino acid residues HIS47 and GLY29 are key targets. Because they bind not only to the natural substrate phosphatidylcholine and compounds known for having inhibitory functions, but also for combining with potential antidote molecules in Chinese herbal medicine. This study is the first to report experience with virtual screening for possible inhibitor of dPLA2, such as the interaction spatial structure, binding energy and binding interaction analysis, these experiences not only provide reference for further experimental research, but also have a guideline for the study of drug molecular mechanism of action. 展开更多
关键词 Chinese Herbal Medicine Phospholipase A2 inhibitor Molecular Docking Molecular Mechanism
下载PDF
Present and prospect of transarterial chemoembolization combined with tyrosine kinase inhibitor and PD-1 inhibitor for unresectable hepatocellular carcinoma
20
作者 Rui Zhang Yan-Hui Liu +2 位作者 Yu Li Nan-Nan Li Zheng Li 《World Journal of Gastrointestinal Oncology》 SCIE 2024年第11期4315-4320,共6页
In this editorial,we comment on the article(World J Gastrointest Oncol 2024;16:1236-1247),which is a retrospective study of transarterial chemoembolization(TACE)combined with multi-targeted tyrosine kinase inhibitor(T... In this editorial,we comment on the article(World J Gastrointest Oncol 2024;16:1236-1247),which is a retrospective study of transarterial chemoembolization(TACE)combined with multi-targeted tyrosine kinase inhibitor(TKI)and programmed cell death protein-1(PD-1)inhibitor for the treatment of unresectable hepatocellular carcinoma(HCC).Herein,we focus specifically on the mechanisms of this triple therapy,administration sequence and selection of each medication,and implications for future clinical trials.Based on the interaction mechanisms between medications,the triple therapy of TACE+TKI+PD-1 is proposed to complement the deficiency of each monotherapy,and achieve synergistic antitumor effects.Although this triple therapy has been evaluated by several retrospective trials,it is still controversial whether the triple therapy achieves better clinical benefits,due to the flawed study design and heterogeneity in medications.In addition,the administration sequence,which may greatly affect the clinical benefit,needs to be fully considered at clinical decision-making for obtaining better prognosis.We hope that this editorial could contribute to the design and optimization of future trials. 展开更多
关键词 Transarterial chemoembolization Multi-targeted tyrosine kinase inhibitor Programmed cell death protein-1 inhibitor Unresectable hepatocellular carcinoma Mechanism
下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部