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| 1 | AN IRREVERSIBILITY PHENOMENA IN ELECTRICAL CONDUCTIVITY OF THE MELTS IN SODIUM IRON PHOSPHATE SYSTEM显示文摘Theelectricalresistivityofsodium iron phosphate melts wasinvestigated asa functionoftem peratureand composition. Irreversibility was found in thetemperature dependent electricalresistivityinthe melts withlow Na2 Ocontentduringtheheating andcoolingcycle. Theirre versibility wasreduced withincreasing Na2 Ocontent. Theelectricalresistivity tendedto de creaseslightly withtime. Theelectricalconduction ofthe meltscontainingsimulatedindustry waste wassimilartothatofthe melts withsimilarsodacontent. Thetemperature dependent electricalresistivity and activation energy ofthese melts was discussed using the Motttheory and wascorrelatedtothe Fe(II) contentinthe | F. Y. Chen1)and E. D. Delber2) 1) State Key Laboratory of Solidification Process,Northwestern Polytechnic University ,Xi’an 710072 ,China 2) Department of Ceramics Engineering , University of Missouri Rolla, Rolla, Mo 654301 , USA | 1999 | Acta Metallurgica Sinica(English Letters)1999，12，4： | 2 |
| 2 | Selenium Regulation of Selenium-dependent Glutathione Peroxidases in Animals and Transfected CHO Cells显示文摘Glutathione peroxidase (GPX1) was the first identified selenium-dependent enzyme, and this enzyme has been most useful as a biochemical indicator of selenium (Se) status and the parameter of choice for determining Se requirements. We have continued to study Se regulation of GPX1 to better understand the underlying mechanism and to gain insight into how cells themselves regulate nutrient status. In progressive Se deficiency in rats, GPX1 activity,protein and mRNA all decrease in a dramatic, coordinated and exponential fashion such that Se-deficient GPX1 mRNA levels are 6-15% of Sexadequate levels. mRNA levels for other Sedependent proteins are far less decreased in the same animals. The mRNA levels for a second Se-dependent peroxidase, phospholipid hydroperoxide glutathione peroxidase (GPX4 ), are little affected by Se deficiency, demonstrating that Se regulation of GPX1 is unique. Se regulation of GPX1 activity in growing male and female rats shows that the Se requirernent is 100 ng/g diet, based on liver GPX1 activity; use of GPX1 mRNA as the parameter indicates that the Se requirement is nearer to 50 ng Se/g diet in both male and female rats. This approach will readily detect an altered dietary Se requirement, as shown by the incremental increases in dietary Se requirement by 150, 100 or 50 ng Se/g diet in Seudeficient rat pups repleted with Se for 3, 7 or 14 d, respectively. Studies with CHO cells stably transfected with recombinant GPX1 also show that overexpression of GPX1 does not alter the minimum level of media Se necessary for Se-adequate levels of GPX1 activity or mRNA. We hypothesize that classical GPX1 has an integral biological role in the mechanism used by cells to regulate Se status,making GPX1 an especially useful and effective parameter for determining Se requirements in | ROGER A. SUNDE BRITTA M. THOMPSON MELANIE D. PALM SHERRI L.WEISS KEVIN M. THOMPSON AND JACQUELINE K. EVENSON(Nutritional Sciences Program and Department of Biochemistry,University of Missouri, Columbia MO 65211 USA) | 1997 | Biomedical and Environmental Sciences1997，10，2： | 2 |
| 3 | Non-invasive screening for renal artery stenosis with ultrasound contrast enhancement显示文摘 | Missouris CG Allen CM Bellen FG | 1996 | J Hypertens1996，14，3： | 1 |
| 4 | Then Predicting Pressure Drop of Wall-Flow Diesel Particulate Filter-Theo/y and Experi- ment 显示文摘 | Missouri M Heibel A | 2000 | SAE Transactions2000，，1： | 1 |
| 5 | Congenital dislocation of the effeets of femoral shortening and of skeletal traction in treatment显示文摘 | Schoenecker PL Strecker WB Missouri STL | 1984 | J Bone Joint surg(Am)1984，66，： | 1 |
| 6 | Staphylococcus lugdunensis endocarditis following cardiac catheterisation显示文摘 | Matthews PC Missouris CG Jordaan J | 2008 | Int J Cardiol2008，130，1： | 1 |
| 7 | Renal artery stenosis masqtLerading as congestive heart failure 显示文摘 | Missouris C Buckenham T Vallance P | 1993 | Lancet1993，341，8866： | 1 |
| 8 | On the reappearance of a possible ancestral characteristic in a modern chilopod (Chilopoda: Scolopendromorpha: Cryptopidae)显示文摘 | CRABILL R E MISSOURI S L | 1955 | Bulletin of the Brooklyn Entomological Society1955，，： | 1 |
| 9 | Disordered iron homeostasis in chronic heart failure : prevalence, predictors, and relation to anemia, exercise capacity, and survival显示文摘 | OKONKO D O MANDAL A K MISSOURIS C G | 2011 | J Am Coll Cardiol2011，58，12： | 1 |
| 10 | Disordered iron homeostasis in chronic heart failure:prevalence,predictors,and relation to anemia,exercise capacity,and survival显示文摘 | OKONKO D O MANDAL A K MISSOURIS C G | 2011 | J Am Coll Cardiol2011，58，： | 1 |
| 11 | How does treatment influence endocrine mechanisms in acute severe heart failure? Effects on cardiac natriuretic peptides, the rennin system, neuropeptide Y and catcholamines 显示文摘 | Missouris CG Grouzmann E Buckley MG | 1998 | Clin Sci1998，94，6： | 1 |
| 12 | Renal artery stenosis masquerading as congestive heart failure显示文摘 | MISSOURIS C BUCKENHAM T VALLANCE P | 1993 | Lancet1993，341，： | 1 |
| 13 | Serotonin and heart rate in hypertensive and normotensive subjects显示文摘 | Missouris CG Cappuccio FP | 1998 | Am Heart J1998，135，51： | 1 |
| 14 | Apparent heart failure: a syndrome caused by renal artery stenoses显示文摘 | MISSOURIS C BELLI A MACGREGOR G | 2000 | Heart2000，83，： | 1 |
| 15 | Non-invasive screening for renal artery stenosis with ultrasound contrast enhancement显示文摘 | Missouris CG Mien CM Balen FG et a1 | | 0，，04： | 1 |
| 16 | Regression of atherosclerotic renal artery stenosis with aggressive lipid lowering therapy显示文摘 | Khong TK Missouris CG Belli AM | | 0，，06： | 1 |
| 17 | Disordered ironhomeostasis in chronic heart failure: prevalence, predictors, andrelation to anemia, exercise capacity, and survival 显示文摘 | Okonko D O Mandal A K Missouris C G | 2011 | J Am CollCardiol2011，58，12： | 1 |
| 18 | Disordered iron homeostasis in chronic heart failure:Prevalence,predictors,and relation to anemia,exercise capacity,and survival显示文摘 | Okonko DO Mandal AK Missouris CG | | 0，，12： | 1 |
| 19 | Sectional relationships in the genus Rhododendron(Ericaceae):evidence from matK and trnK intron sequences显示文摘 | Missouri Kurashige Y Etoh JI | | 0，，： | 1 |
| 20 | Genetic risk fbr renal artery stenosis: Association with deletion polymorphism in angiotensin l-converting enzyme gene显示文摘 | Missouris CG Barley J Jeffery S | 1994 | Kidney lnt1994，49，： | 1 |
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