keyword
MENU ▼
Read by QxMD icon Read
search

Ldh a inhibitors

keyword
https://www.readbyqxmd.com/read/28088644/tert-butyl-hydroperoxide-t-bhp-induced-apoptosis-and-necroptosis-in-endothelial-cells-roles-of-nox4-and-mitochondrion
#1
Wenwen Zhao, Haitao Feng, Wen Sun, Kang Liu, Jin-Jian Lu, Xiuping Chen
Oxidative stress causes endothelial death while underlying mechanisms remain elusive. Herein, the pro-death effect of tert-butyl hydroperoxide (t-BHP) was investigated with low concentration (50μM) of t-BHP (t-BHPL) and high concentration (500μM) of t-BHP (t-BHPH). Both t-BHPL and t-BHPH induced endothelial cell death was determined. T-BHPL induced caspase-dependent apoptosis and reactive oxygen species (ROS) generation, which was inhibited by N-acetyl-L-cysteine (NAC). Furthermore, NADPH oxidase inhibitor diphenyleneiodonium (DPI), NOX4 siRNA, and NOX4 inhibitor GKT137831 reduced t-BHPL-induced ROS generation while mitochondrial respiratory chain inhibitors rotenone (Rot), 2-thenoyltrifluoroacetone (TTFA), and antimycin A (AA) failed to do so...
January 5, 2017: Redox Biology
https://www.readbyqxmd.com/read/28081548/serum-ldh-predicts-benefit-from-bevacizumab-beyond-progression-in-metastatic-colorectal-cancer
#2
Federica Marmorino, Lisa Salvatore, Cecilia Barbara, Giacomo Allegrini, Lorenzo Antonuzzo, Gianluca Masi, Fotios Loupakis, Beatrice Borelli, Silvana Chiara, Maria Chiara Banzi, Emanuela Miraglio, Domenico Amoroso, Francesco Dargenio, Andrea Bonetti, Angelo Martignetti, Myriam Paris, Daniela Tomcikova, Luca Boni, Alfredo Falcone, Chiara Cremolini
BACKGROUND: Different antiangiogenics are currently indicated in the second-line treatment of metastatic colorectal cancer (mCRC), following a first-line bevacizumab-containing treatment. The magnitude of benefit is limited, but no predictors of benefit have been identified. METHODS: A total of 184 mCRC patients progressing to a first-line bevacizumab-containing treatment were randomised in the BEBYP study to continue or not the antiangiogenic in combination with a second-line chemotherapy...
January 12, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28071786/functional-and-cardioprotective-effects-of-simultaneous-and-individual-activation-of-protein-kinase-a-and-epac
#3
Igor Khaliulin, Mark Bond, Andrew F James, Zara Dyar, Raheleh Amini, Jason L Johnson, M-Saadeh Suleiman
BACKGROUND AND PURPOSE: Myocardial cAMP elevation confers cardioprotection against ischaemia/reperfusion (I/R) injury. cAMP activates two independent signalling pathways, PKA and Epac. This study investigated the cardiac effects of activating PKA and/or Epac and their involvement in cardioprotection against I/R. EXPERIMENTAL APPROACH: Hearts extracted from male rats were used either for determination of PKA and PKC activation or perfused in the Langendorff mode for either cardiomyocytes isolation or used to monitor functional activity at basal levels and after 30 min global ischaemia and 2 h reperfusion...
January 10, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28068632/hydroxysafflor-yellow-a-cardioprotection-in-ischemia-reperfusion-i-r-injury-mainly-via-akt-hexokinase-ii-independent-of-erk-gsk-3%C3%AE-pathway
#4
Jia Min, Cui Wei
Hydroxysafflor yellow A (HSYA) is the main active component of Carthamus tinctorius L which has been used for hundreds of years in Chinese folk medicine in the treatment cardiovascular disease. This study was designed to investigate whether HSYA exerts cardioprotection in ischemia-reperfusion (I/R) injury heart and the mechanisms involved. The protective effect and mechanisms in myocardial ischemia reperfusion injury of HSYA was evaluated by hypoxia-recover (H/R) injury cell model which induced by hypoxia and recovered with oxygen in H9c2 cells...
January 6, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28054320/pembrolizumab-for-advanced-melanoma-experience-from-the-spanish-expanded-access-program
#5
M González-Cao, A Arance, J M Piulats, I Marquez-Rodas, J L Manzano, A Berrocal, G Crespo, D Rodriguez, E Perez-Ruiz, M Berciano, A Soria, A G Castano, E Espinosa, C Montagut, L Alonso, T Puertolas, C Aguado, M A Royo, R Blanco, J F Rodríguez, E Muñoz, P Mut, F Barron, S Martin-Algarra
BACKGROUND: The programmed death (PD-1) inhibitor pembrolizumab has been recently approved for the treatment of advanced melanoma. We evaluated the clinical activity of pembrolizumab in melanoma patients treated under the Spanish Expanded Access Program. METHODS: Advanced melanoma patients who failed to previous treatment lines were treated with pembrolizumab 2 mg/kg every three weeks. Patients with brain metastases were not excluded if they were asymptomatic. Data were retrospectively collected from 21 centers in the Spanish Melanoma Group...
January 4, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28004067/-advanced-glycated-albumin-induces-macrophage-apoptosis-via-activating-caspase-12-pathway
#6
Jin-Guo Li, Qi Hao, Ying-Xue Liu, Peng Li, Peng Li, Xia-Yan Shao, Hua Tian, Yong-Qi Fang, Shu-Tong Yao
The purpose of the present study was to investigate the effect of advanced glycated albumin (AGE-alb) on the activation of caspase-12, a key molecule in endoplasmic reticulum stress (ERS)-associated apoptotic pathway, and to elucidate the underlying molecular mechanisms of macrophage apoptosis. RAW264.7 macrophages were treated with AGE-alb (2, 4 and 6 g/L), control albumin (C-alb, 4 g/L), tunicamycin (TM, 4 mg/L), or pretreated with 4-phenylbutyric acid (PBA, 5 mmol/L) for 1 h and then treated with AGE-alb (4 g/L)...
December 25, 2016: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/27989750/the-antioxidant-uncoupling-protein-2-stimulates-hnrnpa2-b1-glut1-and-pkm2-expression-and-sensitizes-pancreas-cancer-cells-to-glycolysis-inhibition
#7
Jessica Brandi, Daniela Cecconi, Marco Cordani, Margalida Torrens-Mas, Raffaella Pacchiana, Elisa Dalla Pozza, Giovanna Butera, Marcello Manfredi, Emilio Marengo, Jordi Oliver, Pilar Roca, Ilaria Dando, Massimo Donadelli
Several evidence indicate that metabolic alterations play a pivotal role in cancer development. Here, we report that the mitochondrial uncoupling protein 2 (UCP2) sustains the metabolic shift from mitochondrial oxidative phosphorylation (mtOXPHOS) to glycolysis in pancreas cancer cells. Indeed, we show that UCP2 sensitizes pancreas cancer cells to the treatment with the glycolytic inhibitor 2-deoxy-D-glucose. Through a bidimensional electrophoresis analysis, we identify 19 protein species differentially expressed after treatment with the UCP2 inhibitor genipin and, by bioinformatic analyses, we show that these proteins are mainly involved in metabolic processes...
October 27, 2016: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/27982695/17-dmag-protects-against-hypoxia-reoxygenation-induced-cell-injury-in-ht22-cells-through-akt-nrf2-ho-1-pathway
#8
Zhuopeng Jia, Arui Dong, Hongmin Che, Yu Zhang
Oxidative stress is well known to play a pivotal role in hypoxia/reoxygenation (H/R)-induced neuron injury. On the basis of this fact, antioxidative agents have been demonstrated to be neuroprotective. 17-DMAG (HSP90 inhibitor) is reported to have neuroprotective effects in vitro, which may interfere with oxidative stress through reduction in pro-oxidative factors. However, little is known about its effects on H/R-induced neuron injury and the underlying mechanisms. In this study, the effects of 17-DMAG on H/R-treated HT22 cells were investigated...
December 16, 2016: DNA and Cell Biology
https://www.readbyqxmd.com/read/27975299/nilotinib-a-tyrosine-kinase-inhibitor-exhibits-protection-against-acute-pancreatitis-induced-lung-and-liver-damage-in-rats
#9
Manar A Nader, Heba M Wagih
This investigation explored the nilotinib action in the management of acute pancreatitis (AP) and AP-induced lung and liver injury. AP was induced in Sprague Dawley (SD) rats with L-arginine. Treatment with nilotinib with or without L-arginine was applied for 7 days. Marked deterioration in serum amylase, lipase, aspartate amino transferase (AST), alanine amino transferase (ALT), lactate dehydrogenase (LDH), nitric oxide (NO), total protein content, and transforming growth factor beta1 (TGF-β1) along with pancreatic, hepatic, and pulmonary tissue lipid peroxidation (MDA) after induction of AP while significant reduction in tissues superoxide dismutase (SOD), glutathione (GSH) with marked edema, hemorrhage, and perivascular inflammation with acinar cell necrosis, along with elevated pancreatic percentage expression of TGF-β1 and nuclear factor kappa B (NF-κB), were observed in the AP group...
December 14, 2016: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/27955822/febuxostat-associated-eosinophilic-polymyositis-in-marginal-zone-lymphoma
#10
Georges Chahine, Khalil Saleh, Claude Ghorra, Nathalie Khoury, Nadine Khalife, Fouad Fayad
Febuxostat is an orally administered selective inhibitor of xanthine oxidase approved for the treatment of gout and prevention of tumor lysis syndrome. It is a relatively safe medication. Hypersensitivity reactions associated with the use of febuxostat are quite rare with only one reported case of DRESS syndrome. Recently, two case reports of rhabdomyolysis following the initiation of febuxostat were published. We hereby present the first case of rhabdomyolysis with hypereosinophilia following the administration of febuxostat to a 50-year-old patient newly diagnosed with marginal zone lymphoma...
December 7, 2016: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/27941351/anti-cancer-effect-of-cap-translation-inhibitor-4egi-1-in-human-glioma-u87-cells-involvement-of-mitochondrial-dysfunction-and-er-stress
#11
Ming Wu, Chi Zhang, Xue-Jun Li, Qing Liu, Siyi Wanggou
BACKGROUND: Cancer cells are frequently addicted to deregulated oncogenic protein translation that usually arises as a consequence of increased signaling flux from eIF4F activation. The small molecule 4EG-I, a potent inhibitor of translation initiation through disrupting eIF4E/eIF4G interaction, has been shown to exert anticancer effects in animal models of human cancers. METHODS: Here, we extensively investigated the anticancer activity of 4EGI-1 in human glioma U87 cells...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27939630/endosulfan-inhibits-proliferation-through-the-notch-signaling-pathway-in-human-umbilical-vein-endothelial-cells
#12
Jialiu Wei, Lianshuang Zhang, Lihua Ren, Jin Zhang, Yang Yu, Ji Wang, Junchao Duan, Cheng Peng, Zhiwei Sun, Xianqing Zhou
Our previous research showed that endosulfan triggers the extrinsic coagulation pathway by damaging endothelial cells and causes hypercoagulation of blood. To identify the mechanism of endosulfan-impaired endothelial cells, we treated human umbilical vein endothelial cells (HUVECs) with different concentrations of endosulfan, with and without an inhibitor for Notch, N-[N-(3, 5-difluorophenacetyl)-1-alanyl]S-Phenylglycinet-butylester (DAPT, 20 μM), or a reactive oxygen species (ROS) scavenger, N-Acetyl-l-cysteine (NAC, 3 mM), for 24 h...
February 2017: Environmental Pollution
https://www.readbyqxmd.com/read/27931507/hiv-non-nucleoside-reverse-transcriptase-inhibitor-efavirenz-reduces-neural-stem-cell-proliferation-in-vitro-and-in-vivo
#13
Jingji Jin, Bethany Grimmig, James Izzo, Lecia A M Brown, Charles Hudson, Adam J Smith, Jun Tan, Paula C Bickford, Brian Giunta
The prevalence of HIV-associated neurocognitive disorders (HAND) remains high despite combination antiretroviral therapy (cART). There is evidence that neural stem cells (NSCs) can migrate to sites of brain injury such as those caused by inflammation and oxidative stress, which are pathological features of HAND. Thus, reductions in NSCs may contribute to HAND pathogenesis. Since the HIV non-nucleoside reverse transcriptase inhibitor efavirenz (EFV) has previously been associated with cognitive deficits and promotion of oxidative stress pathways, we examined its effect on NSCs in vitro as well as in C57BL/6J mice...
November 2016: Cell Transplantation
https://www.readbyqxmd.com/read/27923592/developments-in-targeted-therapy-in-melanoma
#14
REVIEW
V C Amann, E Ramelyte, S Thurneysen, R Pitocco, N Bentele-Jaberg, S M Goldinger, R Dummer, J Mangana
Melanomas are disease entities driven in part by the mitogen activated protein kinase (MAPK) pathway. The TCGA network recently defined four genetic subtypes based on the most prevalent significantly mutated genes, including mutant BRAF, mutant RAS (N/H/K), mutant NF1, and Triple wild-type melanoma (harboring none of the aforementioned mutations, but instead includes KIT, GNA and GNAQ mutations). The successful development of kinase inhibitors marked a milestone in the treatment of metastatic melanoma. Combination treatment with a BRAF- and MEK-inhibitor is the current standard of care for inoperable stage IIIC/IV BRAF-mutated melanoma...
November 5, 2016: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27906635/a-specific-inhibitor-of-lactate-dehydrogenase-overcame-the-resistance-toward-gemcitabine-in-hypoxic-mesothelioma-cells-and-modulated-the-expression-of-the-human-equilibrative-transporter-1
#15
Elisa Giovannetti, Leticia G Leon, Valentina E Gómez, Paolo A Zucali, Filippo Minutolo, Godefridus J Peters
Malignant pleural mesothelioma (MPM) is a very hypoxic malignancy, and hypoxia has been associated with resistance towards gemcitabine. The muscle-isoform of lactate dehydrogenase (LDH-A) constitutes a major checkpoint for the switch to anaerobic glycolysis. Therefore we investigated the combination of a new LDH-A inhibitor (NHI-1) with gemcitabine in MPM cell lines. Under hypoxia (O2 tension of 1%) the cell growth inhibitory effects of gemcitabine, were reduced, as demonstrated by a 5- to 10-fold increase in IC50s...
December 2016: Nucleosides, Nucleotides & Nucleic Acids
https://www.readbyqxmd.com/read/27894810/na-ca-2-exchanger-1-inhibition-abolishes-ischemic-tolerance-induced-by-ischemic-preconditioning-in-different-cardiac-models
#16
Pasqualina Castaldo, Maria Loredana Macrì, Vincenzo Lariccia, Alessandra Matteucci, Marta Maiolino, Santo Gratteri, Salvatore Amoroso, Simona Magi
Ca(2+)-handling disturbances play an important role in the genesis of myocardial ischemia/reperfusion (I/R) injury. Ischemic preconditioning (IPC) is a powerful strategy to induce tolerance against subsequent ischemic episodes. IPC signaling pathways may be triggered by Ca(2+) ion. Since Na(+)/Ca(2+) exchanger 1 (NCX1) participates in modulating intracellular Ca(2+) homeostasis, here we further defined its role in I/R and investigated its potential involvement in IPC-induced cardioprotection. In isolated ventricular cardiomyocytes, perfused rat heart and H9c2 cardiomyoblasts, I/R produced a significant cell injury, assessed by measuring extracellular lactate dehydrogenase (LDH) and, for the whole heart, also by estimating myocardial infarct size area...
January 5, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27889750/metformin-protects-neurons-against-oxygen-glucose-deprivation-reoxygenation-induced-injury-by-down-regulating-mad2b
#17
Xianfang Meng, Guangpin Chu, Zhihua Yang, Ping Qiu, Yue Hu, Xiaohe Chen, Wenpeng Peng, Chen Ye, Fang-Fang He, Chun Zhang
BACKGROUND/AIMS: Metformin, the common medication for type II diabetes, has protective effects on cerebral ischemia. However, the molecular mechanisms are far from clear. Mitotic arrest deficient 2-like protein 2 (MAD2B), an inhibitor of the anaphase-promoting complex (APC), is widely expressed in hippocampal and cortical neurons and plays an important role in mediating high glucose-induced neurotoxicity. The present study investigated whether metformin modifies the expression of MAD2B and to exert its neuroprotective effects in primary cultured cortical neurons during oxygen-glucose deprivation/reoxygenation (OGD/R), a widely used in vitro model of ischemia/reperfusion...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27864013/factors-predictive-of-response-disease-progression-and-overall-survival-after-dabrafenib-and-trametinib-combination-treatment-a-pooled-analysis-of-individual-patient-data-from-randomised-trials
#18
Georgina V Long, Jean-Jacques Grob, Paul Nathan, Antoni Ribas, Caroline Robert, Dirk Schadendorf, Stephen R Lane, Carmen Mak, Philippe Legenne, Keith T Flaherty, Michael A Davies
BACKGROUND: Dabrafenib plus trametinib treatment provides significant benefits over BRAF-inhibitor monotherapy in patients with BRAF(V600E)-mutant or BRAF(V600K)-mutant advanced melanoma; however, in many patients the disease progresses, leading to death. With many treatment options available, understanding clinical factors that predict long-term response and survival for treatments is important for optimisation of patient management. We aimed to identify clinical factors associated with long-term response and survival using pooled data from randomised trials of dabrafenib plus trametinib in patients with metastatic BRAF-mutant melanoma...
December 2016: Lancet Oncology
https://www.readbyqxmd.com/read/27861613/non-serotonergic-neurotoxicity-by-mdma-ecstasy-in-neurons-derived-from-mouse-p19-embryonal-carcinoma-cells
#19
Dina Popova, Andréas Forsblad, Sanaz Hashemian, Stig O P Jacobsson
3,4-methylenedioxymethamphetamine (MDMA; ecstasy) is a commonly abused recreational drug that causes neurotoxic effects in both humans and animals. The mechanism behind MDMA-induced neurotoxicity is suggested to be species-dependent and needs to be further investigated on the cellular level. In this study, the effects of MDMA in neuronally differentiated P19 mouse embryonal carcinoma cells have been examined. MDMA produces a concentration-, time- and temperature-dependent toxicity in differentiated P19 neurons, as measured by intracellular MTT reduction and extracellular LDH activity assays...
2016: PloS One
https://www.readbyqxmd.com/read/27858860/antagonistic-effects-of-endostatin-vascular-endothelial-growth-inhibitor-chimeric-recombinant-adenovirus-on-homocysteine-induced-vascular-endothelial-cells-injury-in-vitro-and-in-vivo
#20
Zhen-Tian Cui, Jian-Ping Liu, Jian-Min Yao
BACKGROUND: The study is inclined to investigate the antagonistic effects of endostatin-vascular endothelial growth inhibitor chimeric recombinant adenovirus (Ad-hENDO-VEGI) on homocysteine (Hcy)-induced vascular endothelial cells (VECs) injury in vitro and in vivo. METHODS: Human VECs cell line ECV304 was selected and infected with Ad-hENDO-VEGI. The LDH leakage, SOD activity, and MDA levels were measured by the automatic biochemical analyzer. Cell survival rate was counted by Trypanblau dying...
November 2016: Medicine (Baltimore)
keyword
keyword
118344
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"