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https://www.readbyqxmd.com/read/27936435/bilobalide-abates-inflammation-insulin-resistance-and-secretion-of-angiogenic-factors-induced-by-hypoxia-in-3t3-l1-adipocytes-by-controlling-nf-%C3%AE%C2%BAb-and-jnk-activation
#1
A Priyanka, G Sindhu, G L Shyni, M R Preetha Rani, V M Nisha, K G Raghu
Obesity leads to inflammation and insulin resistance in adipose tissue. Hypoxia, observed in obese adipose tissue is suggested as a major cause of inflammation and insulin resistance in obesity. However, the role of hypoxia in adipose tissue during obesity and insulin resistance was not well established. Here we mainly explored the crosstalk between hypoxia induced inflammation, and insulin resistance and also secretion of angiogenic factors in 3T3-L1 adipocytes and possible reversal with bilobalide. Hypoxia for 24h significantly (P≤0...
December 6, 2016: International Immunopharmacology
https://www.readbyqxmd.com/read/27924463/diagnostic-biomarkers-in-oral-verrucous-carcinoma-a-systematic-review
#2
REVIEW
Sepanta Hosseinpour, Fatemeh Mashhadiabbas, Mitra Ghazizadeh Ahsaie
Oral verrucous carcinoma (OVC), a low-grade variant of oral squamous cell carcinoma (OSCC), is most frequently seen in the oral cavity. No clear etiology has been found for this lesion, but human papilloma virus, chewing betel nuts, and ultraviolet radiation are suggested as probable causes. Differential diagnosis of OVC is challenging for oral pathologists. The aim of this study was to review the molecular-based approaches for differential diagnosis of OVC. An electronic search was conducted in Medline and Scopus from January 2004 to July 2015 limited to English language publications...
December 6, 2016: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/27916293/expression-of-glut-1-and-hk-ii-in-pancreatic-cancer-and-their-impact-on-prognosis-and-fdg-accumulation
#3
Hai-Jing Yang, Wei-Jia Xu, Yi-Hui Guan, Hui-Wei Zhang, Wei-Qun Ding, Lan Rong, Zhi-Bing Qiu, Liang Zhong
OBJECTIVE: The purpose of this article is to analyze the expression of Glut-1 and HK-II, the association between their expression and (18)F-FDG accumulation in pancreatic cancer. METHODS: Fifty patients with histologically proven pancreatic cancer were included in this preliminary study, all of whom received (18)F-FDG PET/CT performance before surgery. Immunohistochemical staining of tumor tissue and adjacent normal tissue was performed for Glut-1 and HK-II. By combining proportions and intensity of immunochemical staining, we obtained the modified immunohistological scores for Glut-1 and HK-II respectively...
December 2016: Translational Oncology
https://www.readbyqxmd.com/read/27902598/correlation-of-glut-1-and-glut-3-expression-with-f-18-fdg-uptake-in-pulmonary-inflammatory-lesions
#4
Zhen Guang Wang, Ming Ming Yu, Yu Han, Feng Yu Wu, Guang Jie Yang, Da Cheng Li, Si Min Liu
The aim of the study was to investigate the correlation of glucose transporter-1 (Glut-1) and glucose transporter-3 (Glut-3) expression with F-18 FDG uptake in pulmonary inflammatory lesions.Twenty-two patients with pulmonary inflammatory lesions underwent positron emission tomography/computed tomography (PET/CT) examination preoperatively, and Glut-1 and Glut-3 expression were detected by immunohistochemistry in these lesions. Correlations of Glut-1 and Glut-3 with F-FDG uptake were assessed using Spearman's rank correlation test...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27900001/expression-of-glucose-transporter-1-is-correlated-with-hypoxia-inducible-factor-1%C3%AE-and-malignant-potential-in-pancreatic-neuroendocrine-tumors
#5
Minoru Fujino, Shinichi Aishima, Koji Shindo, Yasunori Oda, Katsuya Morimatsu, Kosuke Tsutsumi, Takao Otsuka, Masao Tanaka, Yoshinao Oda
The present study aimed to investigate the prognostic usefulness of the expression of glucose transporter type 1 (GLUT-1) and GLUT-2, hypoxia-inducible factor 1α (HIF-1α) and insulin-like growth factor II messenger RNA-binding protein 3 (IMP3) in pancreatic neuroendocrine tumors (pNETs). Immunohistochemical staining for GLUT-1, GLUT-2, HIF-1α and IMP3 was performed in 70 pNET specimens. The expression of GLUT-1 and HIF-1α was significantly higher in the World Health Organization grade 2 (G2), neuroendocrine carcinoma cases and mixed-type pNETs compared with the G1 cases...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27884659/relationship-between-plasma-glycation-with-membrane-modification-oxidative-stress-and-expression-of-glucose-trasporter-1-in-type-2-diabetes-patients-with-vascular-complications
#6
Krishna A Adeshara, Arundhati G Diwan, Tejashri R Jagtap, Komal Advani, Aisha Siddiqui, Rashmi S Tupe
BACKGROUND OF STUDY: Enhanced protein glycation in diabetes causes irreversible cellular damage through membrane modifications. Erythrocytes are persistently exposed to plasma glycated proteins; however, little are known about its consequences on membrane. Aim of this study was to examine the relationship between plasma protein glycation with erythrocyte membrane modifications in type 2 diabetes patients with and without vascular complications. METHOD: We recruited 60 healthy controls, 85 type 2 diabetic mellitus (DM) and 75 type 2 diabetic patients with complications (DMC)...
October 17, 2016: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/27878249/ets-1-a-potential-target-of-glycolysis-for-metabolic-therapy-by-regulating-glucose-metabolism-in-pancreatic-cancer
#7
Xiu Zhang, Dan Wu, Mohanad Aldarouish, Xiaodong Yin, Chunyan Li, Cailian Wang
Pancreatic cancer is one of the most lethal malignancies of all types of cancer due to lack of early symptoms and its resistance to conventional therapy. In our previous study, we have shown that v‑ets erythroblastosis virus E26 oncogene homolog‑1 (ETS‑1) promote cell migration and invasion in pancreatic cancer cells. However, the function of ETS‑1 in regulation of glycolysis and autophagy during progression of pancreatic cancer has not been defined yet. In this study, we sought to identify the potential role for silencing ETS‑1 in reducing the expression of glucose transporter‑1 (GLUT‑1) to disturb glycolysis through alteration of 'Warburg effect', by which could result in AMP‑activated protein kinase (AMPK) activation, autophagy induction and reduction of cell viability...
November 16, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27873347/infantile-hemangioma-with-minimal-or-arrested-growth-further-observations-on-clinical-and-histopathologic-findings-of-this-unique-but-underrecognized-entity
#8
Ellen Hui Ma, Susan J Robertson, Chung W Chow, Philip S Bekhor
BACKGROUND: Infantile hemangioma (IH) with minimal or arrested growth (IH-MAG) is becoming increasingly recognized in the literature. It is important to be aware of their existence, because the correct diagnosis is essential for prognostication and treatment and, in the case of facial segmental lesions, the direction of further investigations if PHACE (posterior fossa abnormalities and other structural brain abnormalities; hemangioma(s) of the cervical facial region; arterial cerebrovascular anomalies; cardiac defects, aortic coarctation, and other aortic abnormalities; eye anomalies) syndrome or Sturge-Weber syndrome is suspected...
November 22, 2016: Pediatric Dermatology
https://www.readbyqxmd.com/read/27866088/is-ketogenic-diet-treatment-hepatotoxic-for-children-with-intractable-epilepsy
#9
Nur Arslan, Orkide Guzel, Engin Kose, Unsal Yılmaz, Pınar Kuyum, Betül Aksoy, Tansel Çalık
PURPOSE: Long-term ketogenic diet (KD) treatment has been shown to induce liver steatosis and gallstone formation in some in vivo and clinical studies. The aim of this retrospective study was to evaluate the hepatic side effects of KD in epileptic children. METHOD: A total of 141 patients (mean age: 7.1±4.1years [2-18 years], 45.4% girls), receiving KD at least one year for intractable epilepsy due to different diagnoses (congenital brain defects, GLUT-1 deficiency, West syndrome, tuberous sclerosis, hypoxic brain injury, etc...
November 13, 2016: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/27863474/hypoxic-resistance-of-kras-mutant-tumor-cells-to-3-bromopyruvate-is-counteracted-by-prima-1-and-reversed-by-n-acetylcysteine
#10
Andrea Orue, Valery Chavez, Mary Strasberg-Rieber, Manuel Rieber
BACKGROUND: The metabolic inhibitor 3-bromopyruvate (3-BrPA) is a promising anti-cancer alkylating agent, shown to inhibit growth of some colorectal carcinoma with KRAS mutation. Recently, we demonstrated increased resistance to 3-BrPA in wt p53 tumor cells compared to those with p53 silencing or mutation. Since hypoxic microenvironments select for tumor cells with diminished therapeutic response, we investigated whether hypoxia unequally increases resistance to 3-BrPA in wt p53 MelJuso melanoma harbouring (Q61L)-mutant NRAS and wt BRAF, C8161 melanoma with (G12D)-mutant KRAS (G464E)-mutant BRAF, and A549 lung carcinoma with a KRAS (G12S)-mutation...
November 18, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27856430/glycolysis-and-oxidative-phosphorylation-are-essential-for-purinergic-receptor-mediated-angiogenic-responses-in-vasa-vasorum-endothelial-cells
#11
Martin Lapel, Philip Weston, Derek Strassheim, Vijaya Karoor, Nana Burns, Taras Lyubchenko, Petr Paucek, Kurt R Stenmark, Evgenia V Gerasimovskaya
Angiogenesis is an energy demanding process, however, the role of cellular energy pathways and their regulation by extracellular stimuli, especially extracellular nucleotides, remain largely unexplored. Using metabolic inhibitors of glycolysis (2-deoxyglucose, 2-DG) and oxidative phosphorylation (oligomycin, rotenone, and FCCP) we demonstrate that glycolysis and OXPHOS are both essential for angiogenic responses of vasa vasorum endothelial cell (VVEC). Treatment with P2R agonists, ATP and MeSADP, but not P1 receptor agonist, adenosine, increased glycolytic activity in VVEC (measured by extracellular acidification rate and lactate production)...
November 16, 2016: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/27835826/reactive-oxygen-species-driven-hif1%C3%AE-triggers-accelerated-glycolysis-in-endothelial-cells-exposed-to-low-oxygen-tension
#12
Jin-Young Paik, Kyung-Ho Jung, Jin-Hee Lee, Jin-Won Park, Kyung-Han Lee
Endothelial cells and their metabolic state regulate glucose transport into underlying tissues. Here, we show that low oxygen tension stimulates human umbilical vein endothelial cell (18)F-fluorodeoxyglucose ((18)F-FDG) uptake and lactate production. This was accompanied by augmented hexokinase activity and membrane Glut-1, and increased accumulation of hypoxia-inducible factor-1α (HIF1α). Restoration of oxygen reversed the metabolic effect, but this was blocked by HIF1α stabilization. Hypoxia-stimulated (18)F-FDG uptake was completely abrogated by silencing of HIF1α expression or by a specific inhibitor...
October 26, 2016: Nuclear Medicine and Biology
https://www.readbyqxmd.com/read/27833986/dermal-plexiform-spindle-cell-lipoma
#13
José Fernando Val-Bernal, Sandra Hermana
Spindle cell lipoma located in the dermis is uncommon. The plexiform variant of this tumor is rare. In fact, only six cases of this variant have been described previously. We report herein a case of dermal plexiform spindle cell lipoma with prominent myxoid matrix. A 47-year-old male patient presented with a solitary, 2.2 cm-cutaneous mass in the right buttock region that had slowly increased in size for over one year. The dermal lesion was characterized by a mixture of mature adipocytes, spindle shaped cells and inconspicuous ropey collagen bundles in a mucinous background...
2016: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/27828852/prognostic-value-of-glut-1-expression-in-oral-squamous-cell-carcinoma-a-prisma-compliant-meta-analysis
#14
Chen-Xi Li, Jia-Lin Sun, Zhong-Cheng Gong, Zhao-Quan Lin, Hui Liu
BACKGROUND: A variety of studies have evaluated the correlation between glucose transporter-1 (GLUT-1) expression and prognosis of oral squamous cell carcinoma (OSCC); however, the results were inconsistent and inconclusive. A meta-analysis was performed to assess the prognostic significance of GLUT-1 in OSCC. METHODS: Electronic databases of PubMed, Embase, and Web of Science were searched for relevant studies. The last search was updated on July 2016. Odds ratio (OR) and 95% confidence interval (CI) were pooled to evaluate the relationship between GLUT-1 and clinical features and hazard ratio (HR) and 95% CI were combined to measure the effect of GLUT-1 on overall survival (OS)...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27816720/multivacuolated-mucin-filled-cells-a-unique-cell-characteristic-of-plexiform-neurofibroma-a-report-of-11-cases
#15
Michael Michal, Dmitry V Kazakov, Ladislav Hadravský, Květoslava Michalová, Boris Rychlý, Michal Michal
The authors present 11 cases of plexiform neurofibroma (PN) that featured a very characteristic type of cell appearing as multivacuolated mucin-filled cells (MMFC). The 11 cases were obtained after reviewing 109 cases of PN. Six out of 10 patients showed clinical features of neurofibromatosis type 1 (NF1). The size of PN ranged from 0.8 cm to 11.5 cm in the largest dimension. The lesions represented classical PN in all cases with myxoid, hypocellular stroma. The MMFC were found within the most myxoid tumorous nodules and were haphazardly located, typically featuring a variably sized, multivacuolated cytoplasm divided by a fine septa with a small polygonal nucleus on one side, which was often compressed or slightly indented by the cytoplasmic mucous substances...
November 2, 2016: Human Pathology
https://www.readbyqxmd.com/read/27815672/microrna-433-inhibits-the-proliferation-and-migration-of-huvecs-and-neurons-by-targeting-hypoxia-inducible-factor-1-alpha
#16
Lin Zhang, Yuanxiao Zhang, Xiaohua Zhang, Yan Zhang, Yi Jiang, Xinli Xiao, Jing Tan, Wei Yuan, Yong Liu
Emerging evidence has demonstrated an important role of microRNAs (miRNAs) in the pathogenesis of cerebral infarction. In the present study, a down-regulation of microRNA-433 (miR-433) is identified in hypoxia-induced human umbilical vein vascular endothelial cells (HUVECs) as well as in rat neurons, and is found to be negatively regulated cell proliferation and migration. Moreover, the expression of miR-433 is inversely correlated with the expression of hypoxia-inducible factor 1 alpha (HIF-1α), which has been shown to play critical role in responding to hypoxia conditions...
November 4, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/27815640/formula-feeding-and-systemic-hypoxia-synergistically-induce-intestinal-hypoxia-in-experimental-necrotizing-enterocolitis
#17
Y Chen, Y Koike, H Miyake, B Li, C Lee, A Hock, A Zani, A Pierro
PURPOSE: Feeding and systemic hypoxia are major stresses inducing necrotizing enterocolitis (NEC). This study aims to investigate the role of systemic hypoxia in NEC and its effect before and after feeding. METHODS: Neonatal mice were studied in three groups. Control (N = 9): breast feeding; NEC A (N = 8), gavage feeding + lipopolysaccharide (LPS) + preprandial hypoxia; and NEC B (N = 9), feeding + LPS + postprandial hypoxia. Pimonidazole, a hypoxia marker, was injected intraperitoneally before ileum was harvested for histology and quantitative RT-PCR studies...
November 4, 2016: Pediatric Surgery International
https://www.readbyqxmd.com/read/27795705/cd63-and-glut-1-overexpression-could-predict-a-poor-clinical-outcome-in-gist-a-study-of-54-cases-with-follow-up
#18
Piotr Lewitowicz, Jarosław Matykiewicz, Dorota Koziel, Magdalena Chrapek, Agata Horecka-Lewitowicz, Stanislaw Gluszek
Background and Goals. In light of current knowledge, it seems that alternations underlying GISTs are well explained, although all that is enhanced by various aspects on a daily basis. More recently, attention has been pointed towards exosomes as important particles able to modify healthy and also diseased tissues including cancer. The goal of the present study was an analysis of CD9, CD63, and GLUT-1 as a marker of hypoxia status within 54 cases of GIST and evaluation of their predictive value. Methods. 54 cases of patients suffering from GIST were enrolled into the study, predominantly in the gastric location...
2016: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/27793618/differential-expression-of-endothelial-nutrient-transporters-mct1-and-glut1-in-the-developing-eyes-of-mice
#19
Ayuko Kishimoto, Hiromi Takahashi-Iwanaga, Masahiko Watanabe M, Toshihiko Iwanaga
The blood-brain barrier in the neonatal brain expresses the monocarboxylate transporter (MCT)-1 rather than the glucose transporter (GLUT)-1, due to the special energy supply during the suckling period. The hyaloid vascular system, consisting of the vasa hyaloidea propria and tunica vasculosa lentis, is a temporary vasculature present only during the early development of mammalian eyes and later regresses. Although the ocular vasculature manifests such a unique developmental process, no information is available concerning the expression of endothelial nutrient transporters in the developing eye...
October 26, 2016: Experimental Eye Research
https://www.readbyqxmd.com/read/27789963/herg1-positivity-and-glut-1-negativity-identifies-high-risk-tnm-stage-i-and-ii-colorectal-cancer-patients-regardless-of-adjuvant-chemotherapy
#20
Leonardo Muratori, Giulia Petroni, Lorenzo Antonuzzo, Luca Boni, Jessica Iorio, Elena Lastraioli, Gianluca Bartoli, Luca Messerini, Francesco Di Costanzo, Annarosa Arcangeli
BACKGROUND: The identification of early-stage colorectal cancer (CRC) with high risk of progression is one major clinical challenge, mainly due to lack of validated biomarkers. The aims of the present study were to analyze the prognostic impact of three molecular markers belonging to the ion channels and transporters family: the ether-à-go-go-related gene 1 (hERG1) and the calcium-activated KCa3.1 potassium channels, as well as the glucose transporter 1 (Glut-1); and to define the impact of adjuvant chemotherapy in conjunction with the abovementioned biomarkers, in a cohort of radically resected stage I-III CRC patients...
2016: OncoTargets and Therapy
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