Results 81 to 90 of about 543,196 (314)

Integrative systems‐level analysis reveals a contextual crosstalk between hypoxia and global metabolism in human breast tumors

Molecular Oncology, EarlyView.
Breast tumor samples scored for metabolic deregulation (M1 to M3) were given a hypoxia score (HS). The highest HS occurred in patients with strongest metabolic deregulation (M3), supporting tumor aggressiveness. HS correlated with the highest number of metabolic pathways in M1. This suggests hypoxia to be an early event in metabolic deregulation.
Raefa Abou Khouzam, Salem Chouaib, Mohammad Askandar Iqbal   +2 more
wiley   +1 more source

Free Energy of Activation for the Comorosan Effect [PDF]

arXiv, 2007
Initial reaction rate data for lactic dehydrogenase / pyruvate, lactic dehydrogenase / lactate and malic dehydrogenase / malate enzyme reactions were analyzed to obtain activation free energy changes of -329, -195 and -221 cal/mole, respectively, for rate increases associated with time-specific irradiation of the crystalline substrates prior to ...
arxiv  

Glutamate biosynthesis in Bacillus azotofixans. 15N NMR and enzymatic studies [PDF]

, 1988
Pathways of ammonia assimilation into glutamic acid in Bacillus azotofixans, a recently characterized nitrogen-fixing species of Bacillus, were investigated through observation by NMR spectroscopy of in vivo incorporation of 15N into glutamine and ...
Kanamori, Keiko, Roberts, John D., Weiss, Richard L.   +2 more
core  

Hypertension in mice lacking 11beta-hydroxysteroid dehydrogenase type 2 [PDF]

, 1999
Deficiency of 11β-hydroxysteroid dehydrogenase type 2 (11β-HSD2) in humans leads to the syndrome of apparent mineralocorticoid excess (SAME), in which cortisol illicitly occupies mineralocorticoid receptors, causing sodium retention, hypokalemia, and ...
Arriza, Benediktsson, Berl, Brown, Brown, Chomczynski, Christopher Kenyon, Christopher R.W. Edwards, Clark, Cole, Edwards, Fleming, Gordon, Grone, Grunder, Guyton, Jamieson, John J. Mullins, Jonathan R. Seckl, Kaissling, Kotelevtsev, Krozowski, Lifton, Lindsay, Low, Millar, Mune, Nehls, Roger W. Brown, Sharp, Shimkets, Simon, Stewart, Stewart, Stewart, Stewart Fleming, Ulick, White, White, Yuri Kotelevtsev   +39 more
core   +3 more sources

Targeted metabolomics reveals novel diagnostic biomarkers for colorectal cancer

Molecular Oncology, EarlyView.
This study employed targeted metabolomic profiling to identify 302 distinct metabolites present in platelet‐rich plasma (PRP), revealing aberrant metabolic profiles amongst individuals diagnosed with colorectal cancer (CRC). Compared to carcinoembryonic antigen (CEA) and cancer antigen 19‐9 (CA199), our metabolite panel showed improved sensitivity ...
Zuojian Hu, Fenglin Shen, Yang Liu, Ziqing Zhong, Yongling Chen, Zhiyuan Xia, Cuiju Mo, Hongxiu Yu   +7 more
wiley   +1 more source

Synergistic Effects of Exogenous Nutrient Ions on the Real-Time Cadmium Extraction by an Accumulator

Agriculture
Bidens tripartita L. is a cadmium (Cd) accumulator. However, the real-time influx or efflux of Cd2+ around its root apex has not yet been performed. The object of this experiment was to compare the roles of added ions in solution on dynamic Cd extraction
Siqi Wang, Huiping Dai, Dandan Ji, Shuang Cui, Chengzhi Jiang, Lidia Skuza, Lianzhen Li, Shuhe Wei, Lijun Zhang   +8 more
doaj   +1 more source

Investigation on effect of forest plantation of Alnus ghutinosa L. (Gaertn.) and Pinus taeda L. on soil microbial activity and biomass (case study: Geisom site, west of Guilan province, Iran) [PDF]

تحقیقات جنگل و صنوبر ایران, 2012
Biological property is a best indicator for soil quality identification due to its relationships with soil nutrient cycle, respiration, microbial biomass and enzymes activity.
Ali Salehi, Mohammad Matinizadeh, Jelveh Tamjidi   +2 more
doaj   +1 more source

Evolution: The Case of the Glyceraldehyde-3-Phosphate Dehydrogenase Gene [PDF]

arXiv, 2000
The enzyme Glyceraldehyde-3-Phosphate Dehydrogenase (GAPDH) catalyses the decomposition of glucose. The gene that produces the GAPDH is therefore present in a wide class of organisms. We show that for this gene the average value of the fluctuations in nucleotide distribution in the codons, normalized to strand bias, provides a reasonable measure of how
arxiv  

Regulation of 3β-Hydroxysteroid Dehydrogenase/∆5-∆4 Isomerase: A Review [PDF]

, 2013
This review focuses on the expression and regulation of 3β-hydroxysteroi ddehydrogenase/Δ5-Δ4 isomerase (3β-HSD), with emphasis on the porcine version. 3β-HSD is often associated with steroidogenesis, but its function in the metabolism of both steroids ...
Abbaszade, Banner, Belanger, Beltowski, Benton, Berchtold, Bo Ekstrand, Brunius, Catalfo, Chapman, Chedrese, Chen, Chen, Cherradi, Clark, Coniglio, Conley, Conley, Conley, Cooke, Couet, Coulter, Cue, Davis, De Launoit, Doran, Doran, Dorgan, Dupont, Fink-Gremmels, Furster, Furster, Galarreta, Galia Zamaratskaia, Garrett, Garrett, Gingras, Gingras, Gromadzka-Ostrowska, Haider, Hassan, Havelock, Headon, Hierlihy, Hild-Petito, Hoog, Hu, Joernvall, Kallberg, Kaynard, Keeney, Keeney, Kershaw, Kiessling, Kostic, Kozlowska, Kumar, Labelle-Dumais, Labrie, LaVoie, Leers-Sucheta, Li, Liang, Lorence, Majdic, Martin, Martin Rasmussen, Mason, Mason, Matsunaga, Mcallister, Meadus, Mizrachi, Mode, Mullany, Nakajin, Nakamura, Naville, Nicolau-Solano, Papacleovoulou, Park, Payne, Payne, Payne, Pelletier, Penning, Picon, Rasmussen, Rasmussen, Rasmussen, Rasmussen, Saez, Samuels, Sasano, Sauer, Shapiro, Siiteri, Simard, Simard, Sirianni, Sordoillet, Stayrook, Sun, Suzuki, Takikawa, Takikawa, Tang, The, Tomankova, Tremblay, Val, Von Teichman, Walstra, Wang, Waxman, Waxman, Wong, Yuan, Zamaratskaia, Zamaratskaia, Zhao, Zinedine   +121 more
core   +2 more sources

Respiratory complex I‐mediated NAD+ regeneration regulates cancer cell proliferation through the transcriptional and translational control of p21Cip1 expression by SIRT3 and SIRT7

Molecular Oncology, EarlyView.
NAD+ regeneration by mitochondrial complex I NADH dehydrogenase is important for cancer cell proliferation. Specifically, NAD+ is necessary for the activities of NAD+‐dependent deacetylases SIRT3 and SIRT7, which suppress the expression of p21Cip1 cyclin‐dependent kinase inhibitor, an antiproliferative molecule, at the translational and transcriptional
Masato Higurashi, Kazunori Mori, Hidetsugu Nakagawa, Momoko Uchida, Fumihiro Ishikawa, Motoko Shibanuma   +5 more
wiley   +1 more source