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https://www.readbyqxmd.com/read/29334174/trichloroacetic-acid-80-as-a-chemical-debridement-method-for-chronic-venous-leg-ulcers-a-pilot-study
#1
Rita R Pinheiro, Bruno Duarte, Joana Cabete
Debridement is essential for the optimal care of venous leg ulcers. Several debridement methods with different limitations may be deployed. Trichloroacetic acid (TCA) is used for several dermatological purposes. Its application as a chemical debridement method for leg ulcers has never been explored. We designed a prospective study to determine the role of 80% TCA solution as a chemical debridement method for leg ulcers, regarding efficacy and procedure-associated pain. Chronic venous leg ulcers were treated with 3 cycles of 80% TCA solution or curettage over 1 week...
January 15, 2018: International Wound Journal
https://www.readbyqxmd.com/read/29330693/the-enhanced-biomass-and-lipid-accumulation-in-coccomyxa-subellipsoidea-with-an-integrated-treatment-strategy-initiated-by-brewery-effluent-and-phytohormones
#2
Tingting Liu, Fei Luo, Zhenyao Wang, Yuqin Li
Brewery effluent (BE) as an appreciable and sustainable resource presented new possibilities in low-cost algal biomass production, whereas the relatively low essential macronutrients hindered extensive applications as growth medium for microalgae cultivation. The objective of this study was to investigate the feasibility of an integrated treatment strategy initiated by BE coupling phytohormones in augmenting biomass and lipid accumulation in Coccomyxa subellipsoidea. Results revealed that BE coupling synthetic 1-naphthaleneacetic acid (NAA) accomplished the favorable lipid productivity of 481...
January 12, 2018: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/29328390/investigation-into-the-underlying-molecular-mechanisms-of-hypertensive-nephrosclerosis-using-bioinformatics-analyses
#3
Tianlong Liu, Minna Liu, Peijin Shang, Xin Jin, Wenxing Liu, Yikai Zhang, Xinfang Li, Yi Ding, Yuwen Li, Aidong Wen
Hypertensive nephrosclerosis (HNS) is a major risk factor for end-stage renal disease. However, the underlying pathogenesis of HNS remains to be fully determined. The gene expression profile of GSE20602, which consists of 14 glomeruli samples from patients with HNS and 4 normal glomeruli control samples, was obtained from the Gene Expression Omnibus database. Gene ontology (GO) and pathway enrichment analyses were performed in order to investigate the functions and pathways of differentially expressed genes (DEGs)...
January 9, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29323472/integrated-analysis-of-the-transcriptome-and-metabolome-of-corynebacterium-glutamicum-during-penicillin-induced-glutamic-acid-production
#4
Takashi Hirasawa, Masaki Saito, Katsunori Yoshikawa, Chikara Furusawa, Hiroshi Shmizu
Corynebacterium glutamicum is known for its ability to produce glutamic acid and has been utilized for the fermentative production of various amino acids. Glutamic acid production in C. glutamicum is induced by penicillin. In this study, we analyzed the transcriptome and metabolome of C. glutamicum to understand the mechanism of penicillin-induced glutamic acid production. Transcriptomic analysis with DNA microarray revealed that expression of some glycolysis- and TCA cycle-related genes, which include those encoding the enzymes involved in conversion of glucose to 2-oxoglutaric acid, was upregulated after penicillin addition...
January 11, 2018: Biotechnology Journal
https://www.readbyqxmd.com/read/29321553/prediction-of-co-expression-genes-and-integrative-analysis-of-gene-microarray-and-proteomics-profile-of-keshan-disease
#5
Sen Wang, Rui Yan, Bin Wang, Peiru Du, Wuhong Tan, Mikko J Lammi, Xiong Guo
Keshan disease (KD) is a kind of endemic cardiomyopathy which has a high mortality. However, molecular mechanism in the pathogenesis of KD remains poorly understood. Serum samples were collected from 112 KD patients and 112 normal controls. Gene microarray was used to screen differently expressed genes. Genevestigator was applied to forecast co-expression genes of significant gene. iTRAQ proteomics analysis was used to verify significant genes and their co-expression genes. GO, COG, IPA and STRING were applied to undertake function categorization, pathway and network analysis separately...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29321378/glutamine-derived-2-hydroxyglutarate-is-associated-with-disease-progression-in-plasma-cell-malignancies
#6
Wilson I Gonsalves, Vijay Ramakrishnan, Taro Hitosugi, Toshi Ghosh, Dragan Jevremovic, Tumpa Dutta, Dhananjay Sakrikar, Xuan-Mai Petterson, Linda Wellik, Shaji K Kumar, K Sreekumaran Nair
The production of the oncometabolite 2-hydroxyglutarate (2-HG) has been associated with c-MYC overexpression. c-MYC also regulates glutamine metabolism and drives progression of asymptomatic precursor plasma cell (PC) malignancies to symptomatic multiple myeloma (MM). However, the presence of 2-HG and its clinical significance in PC malignancies is unknown. By performing 13C stable isotope resolved metabolomics (SIRM) using U[13C6]Glucose and U[13C5]Glutamine in human myeloma cell lines (HMCLs), we show that 2-HG is produced in clonal PCs and is derived predominantly from glutamine anaplerosis into the TCA cycle...
January 11, 2018: JCI Insight
https://www.readbyqxmd.com/read/29315846/linc00511-interacts-with-mir-765-and-modulates-tongue-squamous-cell-carcinoma-progression-by-targeting-lamc2
#7
Junhai Ding, Changxi Yang, Sen Yang
BACKGROUND: Aimed at underlying the molecular regulatory mechanism and overall biological functions of LINC00511 in tongue squamous cell carcinoma (TSCC). METHODS: The expression level of LINC00511 was examined by QRT-PCR. In particular, Tca-8113 cell line was selected for subsequent experiments, in which the expression level of LINC00511 was the most significant. Meanwhile, the effects of LINC00511 on cells proliferation, cell cycle distribution and invasion of TSCC cells were explored using RNA knockdown tools with CCK-8, flow cytometry analysis, colony formation and transwell assay...
January 9, 2018: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/29315239/mangiferin-accelerates-glycolysis-and-enhances-mitochondrial-bioenergetics
#8
Zhongbo Liu, Pasha Apontes, Ekaterina V Fomenko, Nan Chi, Victor L Schuster, Irwin J Kurland, Jeffrey E Pessin, Yuling Chi
One of the main causes of hyperglycemia is inefficient or impaired glucose utilization by skeletal muscle, which can be exacerbated by chronic high caloric intake. Previously, we identified a natural compound, mangiferin (MGF) that improved glucose utilization in high fat diet (HFD)-induced insulin resistant mice. To further identify the molecular mechanisms of MGF action on glucose metabolism, we conducted targeted metabolomics and transcriptomics studies of glycolyic and mitochondrial bioenergetics pathways in skeletal muscle...
January 9, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29312565/dissect-new-mechanistic-insights-for-geniposide-efficacy-on-the-hepatoprotection-using-multiomics-approach
#9
Shi Qiu, Aihua Zhang, Tianlei Zhang, Hui Sun, Yu Guan, Guangli Yan, Xijun Wang
A multi-omics approach could yield in-depth mechanistic insights. Here, we performed an integrated analysis of miRNAome, proteome and metabolome, aimed to investigate the underlying mechanism of active product geniposide in ethanol-induced apoptosis. We found that integrative meta-analysis identified 28 miRNAs, 20 proteins and 7 metabolites significantly differentially expressed, respectively. Further analysis identified geniposide extensively regulated multiple metabolism pathways and the most important related pathway was citrate cycle (TCA cycle)...
December 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29311556/linked-cycles-of-oxidative-decarboxylation-of-glyoxylate-as-protometabolic-analogs-of-the-citric-acid-cycle
#10
Greg Springsteen, Jayasudhan Reddy Yerabolu, Julia Nelson, Chandler Joel Rhea, Ramanarayanan Krishnamurthy
The development of metabolic approaches towards understanding the origins of life, which have focused mainly on the citric acid (TCA) cycle, have languished-primarily due to a lack of experimentally demonstrable and sustainable cycle(s) of reactions. We show here the existence of a protometabolic analog of the TCA involving two linked cycles, which convert glyoxylate into CO2 and produce aspartic acid in the presence of ammonia. The reactions proceed from either pyruvate, oxaloacetate or malonate in the presence of glyoxylate as the carbon source and hydrogen peroxide as the oxidant under neutral aqueous conditions and at mild temperatures...
January 8, 2018: Nature Communications
https://www.readbyqxmd.com/read/29305217/metabonomic-profiling-in-study-hepatoprotective-effect-of-polysaccharides-from-flammulina-velutipes-on-carbon-tetrachloride-induced-acute-liver-injury-rats-using-gc-ms
#11
Yan Zhang, Haitao Li, Tao Hu, Hui Li, Gang Jin, Yang Zhang
This study was performed to evaluate the hepatoprotective effect of FVP on carbon tetrachloride induced acute liver injury rats. Transaminase levels, antioxidant effect and histopathology were used to assess the recovery of FVP treated acute liver injury rats. Metabolomic analysis of liver homogenate based on GC-MS was used to obtain a global understanding of metabolic change between acute liver injury model rats and FVP-treated rats in order to assess the underlying mechanisms. Multivariate statistical approaches such as principal component analysis and orthogonal projection to latent structure square-discriminant analysis revealed distinctions among the normal, liver injury model, and FVP groups...
January 2, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29303786/aerobic-glycolysis-in-amyotrophic-lateral-sclerosis-and-huntington-s-disease
#12
REVIEW
Alexandre Vallée, Yves Lecarpentier, Rémy Guillevin, Jean-Noël Vallée
Neurodegenerative cells are the sites of numerous metabolic and energetic abnormalities with abnormalities in energy production. Energy is the primary determinant of neuronal viability. In neurodegenerative cells, metabolic enzymes are modified by the dysregulation of the canonical WNT/β-catenin pathway. In amyotrophic lateral sclerosis (ALS) and Huntington's disease (HD), WNT/β-catenin pathway is upregulated. We focused this review on the hypothesis of aerobic glycolysis stimulated by the upregulation of WNT/β-catenin pathway in ALS and HD...
January 5, 2018: Reviews in the Neurosciences
https://www.readbyqxmd.com/read/29302971/metabonomics-approach-to-comparing-the-anti-stress-effects-of-four-panax-ginseng-components-in-rats
#13
Jingcheng Wang, Yuanlong Hou, Zhiying Jia, Xie Xie, Jiajian Liu, Yani Kang, Xin Wang, Xiaoyan Wang, Wei Jia
Different components of P. ginseng have different properties and medicinal effects. Metabonomics was a perspective approach to analyze global endogenous metabolites response to physiological and pathological processe. In this study, untargeted -metabonomics method using GC/TOFMS combined with multivariate statistical techniques was applied to compare entire metabolite differences and the anti-stress variations among four components of P. ginseng, total ginsenosides (TG), panaxadiol (PD), panaxatriol (PT) and ginseng polysaccharide (PS), in Sprague Dawley rats...
January 5, 2018: Journal of Proteome Research
https://www.readbyqxmd.com/read/29301575/warburg-effect-hypothesis-in-autism-spectrum-disorders
#14
REVIEW
Alexandre Vallée, Jean-Noël Vallée
Autism spectrum disorder (ASD) is a neurodevelopmental disease which is characterized by a deficit in social interactions and communication with repetitive and restrictive behavior. In altered cells, metabolic enzymes are modified by the dysregulation of the canonical WNT/β-catenin pathway. In ASD, the canonical WNT/β-catenin pathway is upregulated. We focus this review on the hypothesis of Warburg effect stimulated by the overexpression of the canonical WNT/β-catenin pathway in ASD. Upregulation of WNT/β-catenin pathway induces aerobic glycolysis, named Warburg effect, through activation of glucose transporter (Glut), pyruvate kinase M2 (PKM2), pyruvate dehydrogenase kinase 1(PDK1), monocarboxylate lactate transporter 1 (MCT-1), lactate dehydrogenase kinase-A (LDH-A) and inactivation of pyruvate dehydrogenase complex (PDH)...
January 4, 2018: Molecular Brain
https://www.readbyqxmd.com/read/29300464/promysalin-elicits-species-selective-inhibition-of-pseudomonas-aeruginosa-by-targeting-succinate-dehydrogenase
#15
Colleen Keohane, Andrew Steele, Christian Fetzer, Jittasak Khowsathit, Daria Van Tyne, Lucile Moynie, Michael S Gilmore, John Karanicolas, Stephan A Sieber, William M Wuest
Natural products have served as an inspiration to scientists both for their complex three-dimensional architecture and exquisite biological activity. Promysalin is one such Pseudomonad secondary metabolite that exhibits narrow-spectrum antibacterial activity, originally isolated from the rhizosphere. We herein utilize affinity-based protein profiling (AfBPP) to identify succinate dehydrogenase (Sdh) as the biological target of the natural product. The target was further validated in silico, in vitro, in vivo, and through the generation, and sequencing, of a resistant mutant...
January 4, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29297957/enhanced-1-3-propanediol-production-in-klebsiella-pneumoniae-by-a-combined-strategy-of-strengthening-the-tca-cycle-and-weakening-the-glucose-effect
#16
Xinyao Lu, Shunli Ren, Jingzheng Lu, Hong Zong, Jian Song, Bin Zhuge
AIMS: This study aimed to strengthen the reducing equivalent regeneration in Klebsiella pneumoniae for improving 1,3-propanediol (PDO) production. METHODS AND RESULTS: Disruption of the arcA gene activated the transcription levels of the TCA cycle genes and thus increased the NADH/NAD+ ratio by 54.2%, leading to the improved PDO titer and yield per cell from 16.1 g l-1 and 4.0 g gDCW-1 to 18.8 g l-1 and 6.4 g gDCW-1 , respectively. Further ldhA gene deletion eliminated lactate accumulation and promoted the PDO titer to 19...
January 3, 2018: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/29285876/metabolomic-analysis-of-92-pulmonary-embolism-patients-from-a-nested-case-control-study-identifies-metabolites-associated-with-adverse-clinical-outcomes
#17
O A Zeleznik, E M Poole, S Lindstrom, P Kraft, A Van Hylckama Vlieg, J A Lasky-Su, L B Harrington, K Hagan, J Kim, B A Parry, N Giordano, C Kabrhel
BACKGROUND: Patients with acute pulmonary embolism (PE) exhibit wide variation in clinical presentation and outcomes. Our understanding of the pathophysiologic mechanisms differentiating low-risk and high-risk PE is limited, so current risk-stratification efforts often fail to predict clinical deterioration and are insufficient to guide management. OBJECTIVES: To improve our understanding of the physiology differentiating low-risk from high-risk PE, we conducted the first-ever high-throughput metabolomics analysis (843 named metabolites) comparing PE patients across risk strata within a nested case-control study...
December 29, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/29285295/nmr-based-metabolomic-techniques-identify-potential-urinary-biomarkers-for-early-colorectal-cancer-detection
#18
Zhening Wang, Yan Lin, Jiahao Liang, Yao Huang, Changchun Ma, Xingmu Liu, Jurong Yang
Better early detection methods are needed to improve the outcomes of patients with colorectal cancer (CRC). Proton nuclear magnetic resonance spectroscopy (1H-NMR), a potential non-invasive early tumor detection method, was used to profile urine metabolites from 55 CRC patients and 40 healthy controls (HCs). Pattern recognition through orthogonal partial least squares-discriminant analysis (OPLS-DA) was applied to 1H-NMR processed data. Model specificity was confirmed by comparison with esophageal cancers (EC, n=18)...
December 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/29281667/urothelial-maxik-activity-regulates-mucosal-and-detrusor-metabolism
#19
Yi Wang, Gary G Deng, Kelvin P Davies
There is increasing evidence for a role of MaxiK potassium channel-activity in regulating the metabolism and intracellular signaling of non-contractile bladder mucosal tissues. At present however no studies have determined the impact of urothelial MaxiK-activity on overall bladder metabolism. To address this we have investigated the effect of bladder lumen instillation of the MaxiK inhibitor, iberiotoxin (IBTX), on mucosal and detrusor metabolism using metabolomics. Since IBTX does not cross plasma membranes, when instilled into the bladder lumen it would only effect urothelially expressed MaxiK-activity...
2017: PloS One
https://www.readbyqxmd.com/read/29278688/stage-specific-metabolic-features-of-differentiating-neurons-implications-for-toxicant-sensitivity
#20
Johannes Delp, Simon Gutbier, Martin Cerff, Christin Zasada, Sebastian Niedenführ, Liang Zhao, Lena Smirnova, Thomas Hartung, Hanna Borlinghaus, Falk Schreiber, Jörg Bergemann, Jochem Gätgens, Martin Beyss, Salah Azzouzi, Tanja Waldmann, Stefan Kempa, Katharina Nöh, Marcel Leist
Developmental neurotoxicity (DNT) may be induced when chemicals disturb a key neurodevelopmental process, and many tests focus on this type of toxicity. Alternatively, DNT may occur when chemicals are cytotoxic only during a specific neurodevelopmental stage. The toxicant sensitivity is affected by the expression of toxicant targets and by resilience factors. Although cellular metabolism plays an important role, little is known how it changes during human neurogenesis, and how potential alterations affect toxicant sensitivity of mature vs...
December 24, 2017: Toxicology and Applied Pharmacology
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