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Lactate Dehydrogenase

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https://www.readbyqxmd.com/read/28454354/pt93-a-novel-caffeic-acid-amide-derivative-suppresses-glioblastoma-cells-migration-proliferation-and-mmp-2-9-expression
#1
Kaishu Li, Yalin Tu, Qingyu Liu, Ying Ouyang, Mingliang He, Ming Luo, Jingkao Chen, Rongbiao Pi, Anmin Liu
Glioblastoma multiforme (GBM) is the most malignant type of primary brain tumor in adults and can diffusely infiltrate adjacent normal tissue. GBM is therefore rarely cured by surgery or radiation therapy. Matrix metalloproteinases (MMPs) are involved in tissue remodeling and numerous other physiological progresses. The MMPs MMP-2 and MMP-9 are associated with the invasion ability of GBM. PT93 is a novel caffeic acid amide derivative that was first synthesized in 2013. In the present study, the human GBM T98G, U87 and U251 cell lines and the normal mouse neuron HT22 cell line were used to investigate the anticancer and cytotoxic effects of PT93 in vitro...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28453701/an-exploratory-analysis-of-alkaline-phosphatase-lactate-dehydrogenase-and-prostate-specific-antigen-dynamics-in-the-phase-3-alsympca-trial-with-radium-223
#2
O Sartor, R E Coleman, S Nilsson, D Heinrich, S I Helle, J M O'Sullivan, N J Vogelzang, Ø Bruland, S Kobina, S Wilhelm, L Xu, M Shan, M W Kattan, C Parker
Background: Baseline clinical variables are prognostic for overall survival (OS) in patients with castration-resistant prostate cancer (CRPC). Their prognostic and predictive value with agents targeting bone metastases, such as radium-223, is not established. Patients and methods: The radium-223 ALSYMPCA trial enrolled patients with CRPC and symptomatic bone metastases. Prognostic potential of baseline variables was assessed using Cox models. Percentage changes in biomarker levels from baseline were evaluated during the trial period; changes from baseline to week 12 were evaluated for association with OS and surrogacy...
May 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28448868/protective-effects-of-teucrium-polium-aqueous-extract-and-ascorbic-acid-on-hematological-and-some-biochemical-parameters-against-carbon-tetrachloride-ccl4-induced-toxicity-in-rats
#3
Fatma Rahmouni, Latifa Hamdaoui, Riadh Badraoui, Tarek Rebai
Herbal drugs play a crucial function to protect organisms from the toxic effect of some compounds. The present study was designed to evaluate the protective effects of Teucrium Polium (TP) aqueous extract and vitamin C (Vit C) against carbon tetrachloride (CCl4) which induced toxicity in rats. Male albino Wistar rats were divided into six groups: group I was used as controls, group II received CCl4 in olive oil (0.5ml/kg) by gavage, and group III received CCl4 in olive oil (0.5ml/kg) by gavage after three days of receiving TP (5g/l), orally, for seven days; Group IV received TP (5g/l) alone, orally, for seven days, Group V received CCl4 in olive oil (0...
April 24, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28447747/lycium%C3%A2-barbarum-polysaccharide-exhibits-cardioprotection-in-an-experimental-model-of-ischemia-reperfusion-damage
#4
Ya-Min Hou, Jie Wang, Xian-Zhao Zhang
Cardiovascular diseases are a major cause of mortality and disability worldwide. The present study investigated the cardio-protective effects of polysaccharides extracted from Lycium barbarum (LB), the fruit of which is traditionally used in Chinese medicine. Polysaccharides were characterized using Fourier transform infrared spectroscopy and high‑performance liquid chromatography techniques. The present study demonstrated that LB polysaccharides are composed of glucose and fructose monosaccharides in a molar ratio of 1:2...
March 7, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28447737/17%C3%AE-estradiol-protects-against-doxorubicin-induced-cardiotoxicity-in-male-sprague-dawley-rats-by-regulating-nadph-oxidase-and-apoptosis-genes
#5
Xiao-Juan Zhang, Xiao-Qing Cao, Chun-Sheng Zhang, Zhuo Zhao
Doxorubicin (DOX) is one of the most effective chemotherapeutic agents for the treatment of a number of malignancies. However, its use is limited by serious cardiotoxic effects, for which there are currently no reliable pharmacologic therapies. Estrogen has exhibited protective effects against cardiac stressors in male and female animal models; however, its effects on DOX‑induced cardiotoxicity remain unknown. High mortality and morbidity rates have been observed in patients with cancer worldwide, and DOX is often administered to a greater number of men than women...
March 16, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28447619/little-cigars-are-more-toxic-than-cigarettes-and-uniquely-change-the-airway-gene-and-protein-expression
#6
Arunava Ghosh, Sabri H Abdelwahab, Steven L Reeber, Boris Reidel, Abigail J Marklew, Andrew J Garrison, Shernita Lee, Hong Dang, Amy H Herring, Gary L Glish, Mehmet Kesimer, Robert Tarran
Little cigars (LCs) are regulated differently than cigarettes, allowing them to be potentially targeted at youth/young adults. We exposed human bronchial epithelial cultures (HBECs) to air or whole tobacco smoke from cigarettes vs. LCs. Chronic smoke exposure increased the number of dead cells, lactate dehydrogenase release, and interleukin-8 (IL-8) secretion and decreased apical cilia, cystic fibrosis transmembrane conductance regulator (CFTR) protein levels, and transepithelial resistance. These adverse effects were significantly greater in LC-exposed HBECs than cigarette exposed cultures...
April 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28447186/comparison-of-the-recovery-response-from-high-intensity-and-high-volume-resistance-exercise-in-trained-men
#7
Sandro Bartolomei, Eliahu Sadres, David D Church, Eliott Arroyo, Joseph A Gordon Iii, Alyssa N Varanoske, Ran Wang, Kyle S Beyer, Leonardo P Oliveira, Jeffrey R Stout, Jay R Hoffman
PURPOSE: The purpose of this study was to compare the physiological responses of a high-volume (HV; 8 sets of 10 repetitions) versus high-intensity (HI; 8 sets of 3 repetitions) exercise protocol in resistance-trained men. METHODS: Twelve men (24.5 ± 4.2 years; 82.3 ± 8.4 kg; 175.2 ± 5.5 cm) with 6.3 ± 3.4 years of resistance training experience performed each protocol in a counterbalanced, randomized order. Performance [counter movement jump peak power (CMJP), isokinetic (ISOK) and isometric leg extension (MVIC), isometric mid-thigh pull (IMTP), and isometric squat (ISQ)] and muscle morphological [cross-sectional area (CSA) of vastus lateralis] assessments were performed at baseline (BL), 30-min (P-30 min), 24-h (P-24 h), 48-h (P-48 h), and 72-h (P-72 h) post-exercise for each testing session...
April 26, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28446465/deletion-of-lactate-dehydrogenase-a-in-myeloid-cells-triggers-antitumor-immunity
#8
Pankaj Seth, Eva Csizmadia, Andreas Hedblom, Marta Vuerich, Han Xie, Mailin Li, Maria Serena Longhi, Barbara Wegiel
Immunometabolism is emerging as a critical determinant of cancer pathophysiology. In this study, we explored the contributions of macrophage-expressed lactate dehydrogenase-A (LDH-A) to tumor formation in a K-Ras murine model of lung carcinoma. Myeloid-specific deletion of LDH-A promoted accumulation of macrophages with a CD86high and MCP-1high M1-like phenotype that suppressed tumor growth. This phenotypic effect was accompanied by reduced VEGF expression and angiogenesis; diminished numbers of PD-L1+ cancer cells; increased numbers of CD3+ T cells and activation status of CD8+ T cells...
April 26, 2017: Cancer Research
https://www.readbyqxmd.com/read/28446291/-clinical-significance-of-detecting-cd4-t-cells-in-peripheral-blood-of-patients-with-follicular-lymphoma
#9
Wei Liu, Guo-Xiang Zhagn, Wen-Zhi Shi, Lu Dong, Hua Liu, Xu-Liang Shen
OBJECTIVE: To investigate the changes of CD4(+) T lymphocytes in peripheral blood of patients with follicular lymphoma and its clinical significance. METHODS: Blood samples were collected for detection of whole blood cells, including absolute monocyte count (AMC), absolute lymphocyte count (ALC), hemoglobin (Hb), platelet count (Plt). Age, sex, pathological grade, number of involved lymph nodes, bone marrow involvement (BMI), Ann Arbor stage, B symptoms, serum lactate dehydrogenase (LDH) and serum β-2 microglobulin (β2-MG) were recorded, the prognostic stratification was performed by using FLIPI and FLIPI-2...
April 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28446271/-expression-of-aurora-family-genes-in-acute-leukemia-and-its-clinical-significance
#10
Zi-Lei Liu, Ying Xing, Tao Li, Chong Wang, Su-Fang Liu, Hua-Yan Zhao, Rong-Hui Zhang, Ya-Jing Ma, Xin-Ye Zhang, Wen-Liang Tian, Liu Liu, Hui Sun, Ling Sun
OBJECTIVE: To explore the mRNA expression of Aurora-A,B,C(AUR-A,B,C) in acute leukemia(AL) and their correlations with the clinical indications. METHODS: The mRNA expression levels of AUR-A,B,C in 73 cases of newly diagnosed AL (untreated group), 20 cases of AL with remission (remission group) and 14 healthy volunteers as control (healthy group) were detected by QRT-PCR, and the difference of expression levels in difference groups, their correlations with clinical indicators and the correlation between the AUR-A,B,C mRNA expression levels themselves were analyzed...
April 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28445531/antagomir-451-inhibits-oxygen-glucose-deprivation-ogd-induced-huvec-necrosis-via-activating-ampk-signaling
#11
Xi Yang, Xiao-Qing He, Guo-Dong Li, Yong-Qing Xu
Oxygen glucose deprivation (OGD) application in cultured human umbilical vein endothelial cells (HUVECs) mimics ischemic injuries. AntagomiR-451, the miroRNA-451 ("miR-451") inhibitor, could activate pro-survival AMP-activated protein kinase (AMPK) signaling. In the current study, we showed that forced-expression of antagomiR-451 depleted miRNA-451 and significantly attenuated OGD-induced necrosis of HUVECs. Activation of AMPK was required for antagomiR-451-mediated pro-survival actions. AMPK inhibition, by AMPKα shRNA or dominant negative mutation, almost completely abolishedantagomiR-451-mediated HUVEC protection again OGD...
2017: PloS One
https://www.readbyqxmd.com/read/28445445/cardioprotective-effects-of-malvidin-against-isoproterenol-induced-myocardial-infarction-in-rats-a-mechanistic-study
#12
Hui Wei, Hui Li, Shu-Ping Wan, Qiu-Tang Zeng, Long-Xian Cheng, Li-Li Jiang, Yu-Dong Peng
BACKGROUND Malvidin (alvidin-3-glucoside) is a polyphenol that belongs to the class of natural anthocyanin, which is abundantly found in red wines, colored fruits, and the skin of red grapes. Therefore, the current investigation was intended to evaluate the effect of malvidin against myocardial infarction induced by isoproterenol in the rats. MATERIAL AND METHODS The cardioprotective effects was assessed by determining the effect of malvidin on the activities of endogenous antioxidants - catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase (GSH) - and on the levels of lipid peroxidation and serum marker enzymes...
April 26, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28445271/identifying-pretreatment-baseline-factors-predictive-of-distant-metastasis-in-patients-with-nasopharyngeal-carcinoma-after-radiotherapy
#13
Yu Wang, Guojian Chen
This retrospective study was performed to identify pretreatment baseline factors that could predict the development of distant metastasis (DM) in patients with nasopharyngeal carcinoma (NPC).A cohort of 119 NPC patients undergoing radiotherapy (RT) or chemoradiotherapy (CRT) were recruited into the study. Among them, 51 developed DM (DM group) within 3 years after treatment and 68 did not (DM-free group). Various clinicopathological factors were measured before the treatment and analyzed by univariate as well as multivariate analyses for the potential correlation with DM development...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28445027/structurally-linked-dynamics-in-lactate-dehydrogenases-of-evolutionarily-distinct-species
#14
Matthew J Varga, Michael W Dzierlenga, Steven D Schwartz
We present new findings on how primary and secondary structure affects the role of fast protein motions in the reaction coordinates of enzymatic reactions. Using transition path sam- pling (TPS) and committor distribution analysis, we examined the difference in the role of these fast protein motions in the reaction coordinate of lactate dehydrogenases (LDH) of Api- complexa organisms Plasmodium falciparum and Cryptosporidium parvum. Having evolved separately from a common malate dehydrogenase ancestor, there are several important struc- tural differences between the two enzymes, notably a five amino acid insertion into the active site loop of P...
April 26, 2017: Biochemistry
https://www.readbyqxmd.com/read/28444424/the-experience-of-immune-checkpoint-inhibitors-in-chinese-patients-with-metastatic-melanoma-a-retrospective-case-series
#15
Xizhi Wen, Ya Ding, Jingjing Li, Jingjing Zhao, Ruiqing Peng, Dandan Li, Baoyan Zhu, Yao Wang, Xing Zhang, Xiaoshi Zhang
Melanomas in Chinese patients show relatively higher rates of acral and mucosal types than in other populations. However, the efficacy of checkpoint inhibitor therapies against these melanoma subtypes is not well defined. We analyzed 52 patients treated with ipilimumab, pembrolizumab, or a combination of both to evaluate the efficacy and safety of checkpoint inhibitors in Chinese patients with advanced melanoma, particularly those with acral and mucosal types. The objective response rates (ORRs) were 0, 25, and 20% for ipilimumab, pembrolizumab, and pembrolizumab plus ipilimumab, respectively...
April 25, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28444390/characterisation-of-drug-specific-signalling-between-primary-human-hepatocytes-and-immune-cells
#16
Monday O Ogese, Lee Faulkner, Roz E Jenkins, Neil S French, Ian M Copple, Daniel J Antoine, Mohamed Elmasry, Hasan Malik, Christopher E Goldring, B Kevin Park, Catherine Betts, Dean J Naisbitt
It is now apparent that antigen-specific T-cells are activated in certain patients with drug-induced liver injury (DILI). Since cross-talk between hepatocytes and immune cells is likely to be critical in determining the outcome of drug exposure, the aim of this study was to profile the signals released by drug-treated hepatocytes and to characterise the impact of these molecules on dendritic cells. Human hepatocytes were exposed to three drugs (flucloxacillin, amoxicillin and isoniazid) associated with DILI potentially mediated by the adaptive immune system as drug-specific T-cells have been isolated from DILI patients, and the metabolite nitroso-sulfamethoxazole (SMX-NO)...
April 21, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28443236/a-case-of-intravascular-large-b-cell-lymphoma-of-lung-presenting-with-progressive-multiple-nodules-on-chest-computed-tomography
#17
Hyun Jin Bae, Gyu Rak Chon, Dae Jung Kim, Sun Hun Lee, Jin-Young Ahn
A 71-year-old man was admitted to our hospital for dyspnea, which had worsened over a period of more than six months. He was previously diagnosed as having cryptogenic organizing pneumonia, and was treated with steroids in another hospital. He had complained of worsening dyspnea, despite the treatment. We performed video-assisted thoracoscopic surgery because of the high level of lactate dehydrogenase and inconsistency of the usual interstitial pneumonia pattern. Pathologic specimens showed atypical lymphocytes confined to the pulmonary capillaries...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28442927/mechanical-factors-and-vitamin-d-deficiency-in-schoolchildren-with-low-back-pain-biochemical-and-cross-sectional-survey-analysis
#18
Ahmad H Alghadir, Sami A Gabr, Einas S Al-Eisa
OBJECTIVE: This study was designed to evaluate the role of vitamin D, muscle fatigue biomarkers, and mechanical factors in the progression of low back pain (LBP) in schoolchildren. BACKGROUND: Children and adolescents frequently suffer from LBP with no clear clinical causes, and >71% of schoolchildren aged 12-17 years will show at least one episode of LBP. MATERIALS AND METHODS: A total of 250 schoolchildren aged 12-16 years were randomly enrolled in this study...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28441942/rare-antibody-associated-hemolytic-transfusion-reaction-and-transfusion-related-acute-lung-injury-a-case-report
#19
Tim N Beck, Natalee G Young, Michelle L Erickson, Ignacio Prats
BACKGROUND: Hemolytic transfusion reactions and transfusion-related acute lung injury (TRALI) are life-threatening complications associated with the transfusion of blood products. Hemorrhage is one of the most common surgical complications and the risk of bleeding is particularly acute in patients with hematologic deficiencies. Management of surgical bleeding can be divided into two phases. The first phase centers on immediate control of acute bleeding and the second phase focuses on keeping the patient stable and on reducing the sequelae associated with blood transfusions and blood loss...
April 26, 2017: BMC Surgery
https://www.readbyqxmd.com/read/28441885/lactobacillus-plantarum-l9-but-not-lactobacillus-acidophilus-la-reduces-tumour-necrosis-factor-induced-bacterial-translocation-in-caco-2-cells
#20
B Wang, J Chen, S Wang, X Zhao, G Lu, X Tang
Translocation of bacteria across the intestinal barrier is important in the pathogenesis of systemic sepsis and multiple organ dysfunction syndromes. Inflammatory cytokines increase paracellular permeability that allows increased luminal bacteria to translocate across mucosal epithelium and further deteriorate the gut barrier. In order to reduce this risk, the prophylactic use of probiotics has been recently addressed. In this paper, we investigate the protective role toward tumour necrosis factor (TNF)-α induced non-pathogenic Escherichia coli translocation across Caco-2 monolayers of Lactobacillus strains...
April 26, 2017: Beneficial Microbes
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