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https://www.readbyqxmd.com/read/27924463/diagnostic-biomarkers-in-oral-verrucous-carcinoma-a-systematic-review
#1
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/27922941/exercise-training-ameliorates-glucosamine-induced-insulin-resistance-in-ovariectomized-rats
#2
Chung-Hwan Chen, Tsang-Hai Huang, Tsung-Lin Cheng, Chi-Fen Chang, Chau-Zen Wang, Meng-Hsing Wu, Lin Kang
OBJECTIVE: Glucosamine (GlcN), which has been reported to induce insulin resistance (IR), is a popular nutritional supplement used to treat osteoarthritis in menopausal women. We previously demonstrated that GlcN treatment caused IR in ovariectomized rats by reducing the expression of glucose transport protein subtype 4 (GLUT-4) in skeletal muscle. In the present study, we hypothesized that endurance exercise training can reverse GlcN-induced IR. METHODS: Fifty female rats were randomly divided into five groups with 10 rats in each group: (1) sham-operated group; (2) sham-operated group with GlcN treatment for 14 days; (3) ovariectomy (OVX) group; (4) OVX with GlcN treatment; and (5) OVX with GlcN treatment followed by exercise training (running program) for 8 weeks...
December 5, 2016: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/27921099/thermoresponsive-microgels-containing-trehalose-as-soft-matrices-for-3d-cell-culture
#3
Małgorzata Burek, Sylwia Waśkiewicz, Anna Lalik, Sebastian Student, Tadeusz Bieg, Ilona Wandzik
A series of thermoresponsive glycomicrogels with trehalose in the cross-links or with trehalose in the cross-links and as pending moieties was synthesized. These materials were obtained by surfactant-free precipitation copolymerization of N-isopropylacrylamide and various amounts of trehalose monomers. The resultant particles showed a spherical shape and a submicrometer hydrodynamic size with a narrow size distribution. At 25 °C, glycomicrogels in solutions with physiological ionic strength formed stable colloids, which further gelled upon heating to physiological temperature forming a macroscopic hydrogel with an interconnected porous structure...
December 6, 2016: Biomaterials Science
https://www.readbyqxmd.com/read/27916293/expression-of-glut-1-and-hk-ii-in-pancreatic-cancer-and-their-impact-on-prognosis-and-fdg-accumulation
#4
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
#5
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
#6
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/27895698/combinations-of-bio-active-dietary-constituents-affect-human-white-adipocyte-function-in-vitro
#7
Ines Warnke, Johan W E Jocken, Rotraut Schoop, Christine Toepfer, Regina Goralczyk, Joseph Schwager
BACKGROUND: Specific bio-active dietary compounds modulate numerous metabolic processes in adipose tissue (AT), including pre-adipocyte proliferation and differentiation. AT dysfunction, rather than an increased fat mass per se, is strongly associated with the development of insulin resistance and is characterized by impaired adipogenesis, hypertrophic adipocytes, inflammation, and impairments in substrate metabolism. A better understanding of mechanisms underlying AT dysfunction may provide new strategies for the treatment of obesity-associated metabolic diseases...
2016: Nutrition & Metabolism
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
#8
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
#9
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
#10
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
#11
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
#12
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/27858715/glucose-transporters-in-brain-in-health-and-in-alzheimer-s-disease
#13
Leszek Szablewski
Neurons need a continuous supply of glucose, the major source of energy for mammalian brain metabolism. The central nervous system is protected by three main physiological cell barriers. Cell membranes are impermeable for glucose, therefore glucose is transferred across the cell membranes by specific transport proteins: sodium-independent glucose transporters (GLUTs), encoded by SLC2 genes, and sodium-dependent glucose transporters (for example SGLTs), encoded by SLC5 genes. Human brain expresses 10 GLUT proteins and 10 proteins encoded by SLC5 genes...
November 14, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27856430/glycolysis-and-oxidative-phosphorylation-are-essential-for-purinergic-receptor-mediated-angiogenic-responses-in-vasa-vasorum-endothelial-cells
#14
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/27853271/foetal-programming-by-methyl-donor-deficiency-produces-steato-hepatitis-in-rats-exposed-to-high-fat-diet
#15
Anaïs Bison, Aude Marchal-Bressenot, Zhen Li, Ilef Elamouri, Eva Feigerlova, Lu Peng, Remi Houlgatte, Bernard Beck, Gregory Pourié, Jean-Marc Alberto, Remy Umoret, Guillaume Conroy, Jean-Pierre Bronowicki, Jean-Louis Guéant, Rosa-Maria Guéant-Rodriguez
Non-alcoholic steatohepatitis (NASH) is a manifestation of metabolic syndrome, which emerges as a major public health problem. Deficiency in methyl donors (folate and vitamin B12) during gestation and lactation is frequent in humans and produces foetal programming effects of metabolic syndrome, with small birth weight and liver steatosis at day 21 (d21), in rat pups. We investigated the effects of fetal programming on liver of rats born from deficient mothers (iMDD) and subsequently subjected to normal diet after d21 and high fat diet (HF) after d50...
November 17, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27842912/upregulation-of-slc2-glut-family-genes-is-related-to-poor-survival-outcomes-in-papillary-thyroid-carcinoma-analysis-of-data-from-the-cancer-genome-atlas
#16
Young Jun Chai, Jin Wook Yi, So Won Oh, Young A Kim, Ka Hee Yi, Ju Han Kim, Kyu Eun Lee
BACKGROUND: The Warburg effect describes increased glucose uptake in cancer cells, and glucose transporter proteins are overexpressed in many tumors. In this study, we evaluated the expression of 14 SLC2A genes encoding glucose transporter proteins in papillary thyroid carcinoma patients. METHODS: Clinical information and gene expression data from 499 papillary thyroid carcinoma patients were downloaded from The Cancer Genome Atlas database. Correlations between SLC2 gene family (SLC2A1-14) mRNA expression levels and clinicopathologic factors were analyzed...
November 11, 2016: Surgery
https://www.readbyqxmd.com/read/27836974/wzb117-inhibits-glut1-mediated-sugar-transport-by-binding-reversibly-at-the-exofacial-sugar-binding-site
#17
Ogooluwa A Ojelabi, Kenneth P Lloyd, Andrew H Simon, Julie K De Zutter, Anthony Carruthers
WZB117 (2-fluoro-6-(m-hydroxybenzoyloxy) phenyl m-hydroxybenzoate) inhibits passive sugar transport in human erythrocytes and cancer cell lines and, by limiting glycolysis, inhibits tumor growth in mice. This study explores how WZB117 inhibits the erythrocyte sugar transporter GLUT1 and examines the transporter isoform-specificity of inhibition. WZB117 reversibly and competitively inhibits erythrocyte 3-O-methylglucose (3MG) uptake with Ki(app) = 6 microM but is a noncompetitive inhibitor of sugar exit. Cytochalasin B (CB) is a reversible, noncompetitive inhibitor of 3MG uptake with Ki(app) = 0...
November 11, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27835826/reactive-oxygen-species-driven-hif1%C3%AE-triggers-accelerated-glycolysis-in-endothelial-cells-exposed-to-low-oxygen-tension
#18
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
#19
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/27832095/increased-muscular-5%C3%AE-dihydrotestosterone-in-response-to-resistance-training-relates-to-skeletal-muscle-mass-and-glucose-metabolism-in-type-2-diabetic-rats
#20
Naoki Horii, Koji Sato, Noboru Mesaki, Motoyuki Iemitsu
Regular resistance exercise induces skeletal muscle hypertrophy and improvement of glycemic control in type 2 diabetes patients. Administration of dehydroepiandrosterone (DHEA), a sex steroid hormone precursor, increases 5α-dihydrotestosterone (DHT) synthesis and is associated with improvements in fasting blood glucose level and skeletal muscle hypertrophy. Therefore, the aim of this study was to investigate whether increase in muscle DHT levels, induced by chronic resistance exercise, can contribute to skeletal muscle hypertrophy and concomitant improvement of muscular glucose metabolism in type 2 diabetic rats...
2016: PloS One
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