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Aldolase b

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https://www.readbyqxmd.com/read/28711958/systematic-assessment-of-urinary-hydroxy-oxo-glutarate-for-diagnosis-and-follow-up-of-primary-hyperoxaluria-type-iii
#1
Ada Ventzke, Markus Feldkötter, Andrew Wei, Jutta Becker, Bodo B Beck, Bernd Hoppe
BACKGROUND: There are currently three distinct autosomal recessive inherited types of primary hyperoxaluria (PH: PHI, PHII, and PHIII), all characterized by the endogenous overproduction of oxalate. The PH type is difficult to differentiate by clinical features alone. In addition to universal general characteristics to all hyperoxaluria subtypes, specific urinary metabolites can be detected: glycolate in PHI, L-glyceric acid in PHII, and hydroxy-oxo-glutarate (HOG) in PHIII. PHIII is considered to be the most benign form and is characterized by severe recurrent urolithiasis in early life, followed by clinical remission in many, but not all patients...
July 15, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28651382/assignment-of-sigma-factors-of-rna-polymerase-to-promoters-in-corynebacterium-glutamicum
#2
Hana Dostálová, Jiří Holátko, Tobias Busche, Lenka Rucká, Andrey Rapoport, Petr Halada, Jan Nešvera, Jörn Kalinowski, Miroslav Pátek
Corynebacterium glutamicum is an important industrial producer of various amino acids and other metabolites. The C. glutamicum genome encodes seven sigma subunits (factors) of RNA polymerase: the primary sigma factor SigA (σ(A)), the primary-like σ(B) and five alternative sigma factors (σ(C), σ(D), σ(E), σ(H) and σ(M)). We have developed in vitro and in vivo methods to assign particular sigma factors to individual promoters of different classes. In vitro transcription assays and measurements of promoter activity using the overexpression of a single sigma factor gene and the transcriptional fusion of the promoter to the gfpuv reporter gene enabled us to reliably define the sigma factor dependency of promoters...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28607594/high-expression-of-aldolase-b-confers-a-poor-prognosis-for-rectal-cancer-patients-receiving-neoadjuvant-chemoradiotherapy
#3
Yu-Feng Tian, Pei-Ling Hsieh, Ching-Yih Lin, Ding-Ping Sun, Ming-Jen Sheu, Ching-Chieh Yang, Li-Ching Lin, Hong-Lin He, Julia Solórzano, Chien-Feng Li, I-Wei Chang
Background : Colorectal cancer is the third most common cancer in both sex worldwide and it is also the fourth most common cause of cancer mortality. For rectal cancer, neoadjuvant concurrent chemoradiotherapy (CCRT) followed by radical proctectomy is gold standard treatment for patients with stage II/III rectal cancer. By data mining a documented database of rectal cancer transcriptome (GSE35452) from Gene Expression Omnibus, National Center of Biotechnology Information, we recognized that ALDOB was the most significantly up-regulated transcript among those related to glycolysis (GO: 0006096)...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28558381/aldolase-b-overexpression-is-associated-with-poor-prognosis-and-promotes-tumor-progression-by-epithelial-mesenchymal-transition-in-colorectal-adenocarcinoma
#4
Qingguo Li, Yaqi Li, Junyan Xu, Sheng Wang, Ye Xu, Xinxiang Li, Sanjun Cai
BACKGROUND: Glycolysis is considered to be the root of cancer development and progression, which involved a multi-step enzymatic reaction. Our study aimed at figuring out which glycolysis enzyme participates in the development of colorectal cancer and its possible mechanisms. METHODS: We firstly screened out Aldolase B (ALDOB) by performing qRT-PCR arrays of glycolysis-related genes in five paired liver metastasis and primary colorectal tissues, and further detected ALDOB protein with immunohistochemistry in tissue microarray (TMA) consisting of 229 samples from stage I-III colorectal cancer patients...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28274171/differential-representation-of-liver-proteins-in-obese-human-subjects-suggests-novel-biomarkers-and-promising-targets-for-drug-development-in-obesity
#5
Simonetta Caira, Antonio Iannelli, Rosaria Sciarrillo, Gianluca Picariello, Giovanni Renzone, Andrea Scaloni, Pietro Addeo
The proteome of liver biopsies from human obese (O) subjects has been compared to those of nonobese (NO) subjects using two-dimensional gel electrophoresis (2-DE). Differentially represented proteins were identified by matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry (MS)-based peptide mass fingerprinting (PMF) and nanoflow-liquid chromatography coupled to electrospray-tandem mass spectrometry (nLC-ESI-MS/MS). Overall, 61 gene products common to all of the liver biopsies were identified within 65 spots, among which 25 ones were differently represented between O and NO subjects...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28255462/profiling-proteins-in-the-hypothalamus-and-hippocampus-of-a-rat-model-of-premenstrual-syndrome-irritability
#6
Mingqi Qiao, Peng Sun, Yang Wang, Sheng Wei, Xia Wei, Chunhong Song, Fushun Wang, Jibiao Wu
Premenstrual syndrome (PMS) refers to several physical and mental symptoms (such as irritability) commonly encountered in clinical gynaecology. The incidence of PMS has been increasing, attracting greater attention from medical fields. However, PMS pathogenesis remains unclear. This study employed two-dimensional gel electrophoresis (2DE) for proteomic map analysis of the hypothalamus and hippocampus of rat models of premenstrual syndrome (PMS) irritability. Matrix-assisted laser desorption/ionisation time of flight mass spectroscopy (MALDI-TOF-MS) was used to identify proteins possibly related with PMS irritability...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28177318/crystallization-and-x-ray-analysis-of-d-threonine-aldolase-from-chlamydomonas-reinhardtii
#7
Yuki Hirato, Masaru Goto, Mayumi Tokuhisa, Minoru Tanigawa, Katsushi Nishimura
D-Threonine aldolase from the green alga Chlamydomonas reinhardtii (CrDTA) catalyzes the interconversion of several β-hydroxy-D-amino acids (e.g. D-threonine) and glycine plus the corresponding aldehydes. Recombinant CrDTA was overexpressed in Escherichia coli and purified to homogeneity; it was subsequently crystallized using the hanging-drop vapour-diffusion method at 295 K. Data were collected and processed at 1.85 Å resolution. Analysis of the diffraction pattern showed that the crystal belonged to space group P1, with unit-cell parameters a = 64...
February 1, 2017: Acta Crystallographica. Section F, Structural Biology Communications
https://www.readbyqxmd.com/read/28007970/dual-effects-of-fructose-on-chrebp-and-foxo1-3%C3%AE-are-responsible-for-aldob-up-regulation-and-vascular-remodelling
#8
Wei Cao, Tuanjie Chang, Xiao-Qiang Li, Rui Wang, Lingyun Wu
Increased production of methylglyoxal (MG) in vascular tissues is one of the causative factors for vascular remodelling in different subtypes of metabolic syndrome, including hypertension and insulin resistance. Fructose-induced up-regulation of aldolase B (AldoB) contributes to increased vascular MG production but the underlying mechanisms are unclear. Serum levels of MG and fructose were determined in diabetic patients with hypertension. MG level had significant positive correlations with blood pressure and fructose level respectively...
February 1, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28001056/site-selective-oxidative-coupling-reactions-for-the-attachment-of-enzymes-to-glass-surfaces-through-dna-directed-immobilization
#9
Kanwal S Palla, Tyler J Hurlburt, Alexander M Buyanin, Gabor A Somorjai, Matthew B Francis
Enzymes are able to maintain remarkably high selectivity toward their substrates while still retaining high catalytic rates. By immobilizing enzymes onto surfaces we can heterogenize these biological catalysts, making it practical to study, use, and combine them in an easily controlled system. In this work, we developed a platform that allows for the simple and oriented immobilization of proteins through DNA-directed immobilization. First, we modified a glass surface with single-stranded DNA. We then site-selectively attached the complementary DNA strand to the N-terminus of a protein...
January 24, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/27803767/lycopene-modulates-cellular-proliferation-glycolysis-and-hepatic-ultrastructure-during-hepatocellular-carcinoma
#10
Prachi Gupta, Nisha Bhatia, Mohinder Pal Bansal, Ashwani Koul
AIM: To investigate the effect of lycopene extracted from tomatoes (LycT) on ultrastructure, glycolytic enzymes, cell proliferation markers and hypoxia during N-Nitrosodiethylamine (NDEA)-induced hepatocarcinogenesis. METHODS: Female BALB/c mice were randomly divided into four groups: The Control, NDEA (200 mg NDEA/kg b.w. given i.p.), LycT (5 mg/kg b.w. given orally on alternate days) and LycT + NDEA group. The mRNA and protein expression of various cell proliferation markers (PCNA, Cyclin D1, and p21) were assessed by reverse transcription-polymerase chain reaction and enzyme linked immunosorbent assay, respectively...
October 18, 2016: World Journal of Hepatology
https://www.readbyqxmd.com/read/27766950/cyclin-d1-as-a-therapeutic-target-of-renal-cell-carcinoma-a-combined-transcriptomics-tissue-microarray-and-molecular-docking-study-from-the-kingdom-of-saudi-arabia
#11
Sajjad Karim, Jaudah A Al-Maghrabi, Hasan M A Farsi, Ahmad J Al-Sayyad, Hans-Juergen Schulten, Abdelbaset Buhmeida, Zeenat Mirza, Alaa A Al-Boogmi, Fai T Ashgan, Manal M Shabaad, Hend F NourEldin, Khalid B M Al-Ghamdi, Adel Abuzenadah, Adeel G A Chaudhary, Mohammed H Al-Qahtani
BACKGROUND: Renal cell carcinoma (RCC) is a seventh ranked malignancy with poor prognosis. RCC is lethal at metastatic stage as it does not respond to conventional systemic treatments, and there is an urgent need to find out promising novel biomarkers for effective treatment. The goal of this study was to evaluate the biomarkers that can be potential therapeutic target and predict effective inhibitors to treat the metastatic stage of RCC. METHODS: We conducted transcriptomic profiling to identify differentially expressed genes associated with RCC...
September 30, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27591967/protein-profiling-in-serum-after-traumatic-brain-injury-in-rats-reveals-potential-injury-markers
#12
Eric Peter Thelin, David Just, Arvid Frostell, Anna Häggmark-Månberg, Mårten Risling, Mikael Svensson, Peter Nilsson, Bo-Michael Bellander
INTRODUCTION: The serum proteome following traumatic brain injury (TBI) could provide information for outcome prediction and injury monitoring. The aim with this affinity proteomic study was to identify serum proteins over time and between normoxic and hypoxic conditions in focal TBI. MATERIAL AND METHODS: Sprague Dawley rats (n=73) received a 3mm deep controlled cortical impact ("severe injury"). Following injury, the rats inhaled either a normoxic (22% O2) or hypoxic (11% O2) air mixture for 30minutes before resuscitation...
August 31, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27457997/identification-of-a-peroxisomal-targeted-aldolase-involved-in-chlorophyll-biosynthesis-and-sugar-metabolism-in-rice
#13
Fei Zhang, Pan Zhang, Yu Zhang, Shouchuang Wang, Lianghuan Qu, Xianqing Liu, Jie Luo
Chlorophyll plays remarkable and critical roles in photosynthetic light-harvesting, energy transduction and plant development. In this study, we identified a rice Chl-deficient mutant, ygdl-1 (yellow green and droopy leaf-1), which showed yellow-green leaves throughout plant development with decreased content of Chls and carotene and an increased Chl a/b ratio. The ygdl-1 mutant also exhibited severe defects in chloroplast development, including disorganized grana stacks. Sequence analysis revealed that the mutant contained a T-DNA insertion within the promoter of a fructose-1,6-bisphosphate aldolase (OsAld-Y), which dramatically reduced the OsAld-Y mRNA level, and its identity was verified by transgenic complementation...
September 2016: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/27387598/the-sweet-path-to-metabolic-demise-fructose-and-lipid-synthesis
#14
REVIEW
Mark A Herman, Varman T Samuel
Epidemiological studies link fructose consumption with metabolic disease, an association attributable in part to fructose-mediated lipogenesis. The mechanisms governing fructose-induced lipogenesis and disease remain debated. Acutely, fructose increases de novo lipogenesis through the efficient and uninhibited action of ketohexokinase and aldolase B which yields substrates for fatty-acid synthesis. Chronic fructose consumption further enhances the capacity for hepatic fructose metabolism by activating several key transcription factors (i...
October 2016: Trends in Endocrinology and Metabolism: TEM
https://www.readbyqxmd.com/read/27078260/glucose-and-glycogen-metabolism-in-brugia-malayi-is-associated-with-wolbachia-symbiont-fitness
#15
Denis Voronin, Saheed Bachu, Michael Shlossman, Thomas R Unnasch, Elodie Ghedin, Sara Lustigman
Wolbachia are endosymbiotic bacteria found in the majority of arthropods and filarial nematodes of medical and veterinary importance. They have evolved a wide range of symbiotic associations. In filarial nematodes that cause human lymphatic filariasis (Wuchereria bancrofti, Brugia malayi) or onchocerciasis (Onchocerca volvulus), Wolbachia are important for parasite development, reproduction and survival. The symbiotic bacteria rely in part on nutrients and energy sources provided by the host. Genomic analyses suggest that the strain of Wolbachia found in B...
2016: PloS One
https://www.readbyqxmd.com/read/27050126/novel-mode-of-inhibition-by-d-tagatose-6-phosphate-through-a-heyns-rearrangement-in-the-active-site-of-transaldolase-b-variants
#16
Lena Stellmacher, Tatyana Sandalova, Sarah Schneider, Gunter Schneider, Georg A Sprenger, Anne K Samland
Transaldolase B (TalB) and D-fructose-6-phosphate aldolase A (FSAA) from Escherichia coli are C-C bond-forming enzymes. Using kinetic inhibition studies and mass spectrometry, it is shown that enzyme variants of FSAA and TalB that exhibit D-fructose-6-phosphate aldolase activity are inhibited covalently and irreversibly by D-tagatose 6-phosphate (D-T6P), whereas no inhibition was observed for wild-type transaldolase B from E. coli. The crystal structure of the variant TalB(F178Y) with bound sugar phosphate was solved to a resolution of 1...
April 2016: Acta Crystallographica. Section D, Structural Biology
https://www.readbyqxmd.com/read/26770008/evaluation-of-the-in-vivo-and-in-vitro-effects-of-fructose-on-respiratory-chain-complexes-in-tissues-of-young-rats
#17
Ernesto António Macongonde, Thais Ceresér Vilela, Giselli Scaini, Cinara Ludvig Gonçalves, Bruna Klippel Ferreira, Naithan Ludian Fernandes Costa, Marcos Roberto de Oliveira, Silvio Avila Junior, Emilio Luiz Streck, Gustavo Costa Ferreira, Patrícia Fernanda Schuck
Hereditary fructose intolerance (HFI) is an autosomal-recessive disorder characterized by fructose and fructose-1-phosphate accumulation in tissues and biological fluids of patients. This disease results from a deficiency of aldolase B, which metabolizes fructose in the liver, kidney, and small intestine. We here investigated the effect of acute fructose administration on the activities of mitochondrial respiratory chain complexes, succinate dehydrogenase (SDH), and malate dehydrogenase (MDH) in cerebral cortex, liver, kidney, and skeletal muscle of male 30-day-old Wistar rats...
2015: Disease Markers
https://www.readbyqxmd.com/read/26683444/traumatically-injured-astrocytes-release-a-proteomic-signature-modulated-by-stat3-dependent-cell-survival
#18
Jaclynn Levine, Eunice Kwon, Pablo Paez, Weihong Yan, Gregg Czerwieniec, Joseph A Loo, Michael V Sofroniew, Ina-Beate Wanner
Molecular markers associated with CNS injury are of diagnostic interest. Mechanical trauma generates cellular deformation associated with membrane permeability with unknown molecular consequences. We used an in vitro model of stretch-injury and proteomic analyses to determine protein changes in murine astrocytes and their surrounding fluids. Abrupt pressure-pulse stretching resulted in the rapid release of 59 astrocytic proteins with profiles reflecting cell injury and cell death, i.e., mechanoporation and cell lysis...
May 2016: Glia
https://www.readbyqxmd.com/read/26631806/threonine-modulates-immune-response-antioxidant-status-and-gene-expressions-of-antioxidant-enzymes-and-antioxidant-immune-cytokine-related-signaling-molecules-in-juvenile-blunt-snout-bream-megalobrama-amblycephala
#19
Habte-Michael Habte-Tsion, Mingchun Ren, Bo Liu, Xianping Ge, Jun Xie, Ruli Chen
A 9-week feeding trial was conducted to investigate the effects of graded dietary threonine (Thr) levels (0.58-2.58%) on the hematological parameters, immune response, antioxidant status and hepatopancreatic gene expression of antioxidant enzymes and antioxidant-immune-cytokine-related signaling molecules in juvenile blunt snout bream. For this purpose, 3 tanks were randomly arranged and assigned to each experimental diet. Fish were fed with their respective diet to apparent satiation 4 times daily. The results indicated that white blood cell, red blood cell and haemoglobin significantly responded to graded dietary Thr levels, while hematocrit didn't...
April 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/26547672/gallic-acid-ameliorates-hyperglycemia-and-improves-hepatic-carbohydrate-metabolism-in-rats-fed-a-high-fructose-diet
#20
COMPARATIVE STUDY
Da-Wei Huang, Wen-Chang Chang, James Swi-Bea Wu, Rui-Wen Shih, Szu-Chuan Shen
Herein, we investigated the hypoglycemic effect of plant gallic acid (GA) on glucose uptake in an insulin-resistant cell culture model and on hepatic carbohydrate metabolism in rats with a high-fructose diet (HFD)-induced diabetes. Our hypothesis is that GA ameliorates hyperglycemia via alleviating hepatic insulin resistance by suppressing hepatic inflammation and improves abnormal hepatic carbohydrate metabolism by suppressing hepatic gluconeogenesis and enhancing the hepatic glycogenesis and glycolysis pathways in HFD-induced diabetic rats...
February 2016: Nutrition Research
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