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77篇 您的检索式:作者名="OSCAR D"
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1The metabolome of induced pluripotent stem cells reveals metabolic changes occurring in somatic cell reprogramming显示文摘新陈代谢对房间功能的每个方面重要,然而,导致的 pluripotent 干细胞(iPSCs ) 的 metabolome 仍然保持大部分未经勘探。这里,我们报导,用一条 untargeted metabolomics 途径,那人的 iPSCs 份额有从他们的父母房间是不同的胚胎的干细胞(转换字符) 的 pluripotent metabolomic 签名,并且那被变化在涉及细胞的呼吸的代谢物描绘。细胞的 bioenergetics 的检查与我们的 metabolomic 分析支持了,并且证明体的房间在 pluripotency 从一个氧化状态变换成一个 glycolytic 状态。有趣地,各种各样的体的房间的 bioenergetics 与他们的 reprogramming 效率相关。我们进一步识别了在 iPSCs 和转换字符之间不同的代谢物,它揭示了在调整体的房间 reprogramming 起一个关键作用的新奇新陈代谢的小径。我们的调查结果是第一全球性分析 iPSCs 的 metabolome,并且提供机械学的卓见进涉及导致 pluripotency,并且在评估 iPSC 和转换字符等价的规定的新层。Athanasia D Panopoulos Oscar Yanes Sergio Ruiz Yasuyuki S Kida Dinh Diep Ralf Tautenhahn Aida Herrerias Erika M Batchelder Nongluk Plongthongkum Margaret Lutz W Travis Berggren Kun Zhang Ronald M Evans Gary Siuzdak Juan Carlos Izpisua Belmonte] 2012Cell Research2012,22,1:12
2Alzheimer’s disease and type 2 diabetes mellitus:Pathophysiologic and pharmacotherapeutics links显示文摘At present,Alzheimer’s disease(AD)and type 2 diabetes mellitus(T2DM)are two highly prevalent disorders worldwide,especially among elderly individuals.T2DM appears to be associated with cognitive dysfunction,with a higher risk of developing neurocognitive disorders,including AD.These diseases have been observed to share various pathophysiological mechanisms,including alterations in insulin signaling,defects in glucose transporters(GLUTs),and mitochondrial dysfunctions in the brain.Therefore,the aim of this review is to summarize the current knowledge regarding the molecular mechanisms implicated in the association of these pathologies as well as recent therapeutic alternatives.In this context,the hyperphosphorylation of tau and the formation of neurofibrillary tangles have been associated with the dysfunction of the phosphatidylinositol 3-kinase and mitogen-activated protein kinase pathways in the nervous tissues as well as the decrease in the expression of GLUT-1 and GLUT-3 in the different areas of the brain,increase in reactive oxygen species,and production of mitochondrial alterations that occur in T2DM.These findings have contributed to the implementation of overlapping pharmacological interventions based on the use of insulin and antidiabetic drugs,or,more recently,azeliragon,amylin,among others,which have shown possible beneficial effects in diabetic patients diagnosed with AD.Milagros Rojas Mervin Chávez-Castillo Jordan Bautista Ángel Ortega Manuel Nava Juan Salazar Edgar Díaz-Camargo Oscar Medina Joselyn Rojas-Quintero Valmore Bermúdez 2021World Journal of Diabetes2021,12,6:5
3Serum chromogranin-A in hepatocellular carcinoma: Diagnostic utility and limits显示文摘AIM: The utility of serum alpha-fetoprotein (α-FP) for the detection of hepatocellular carcinoma (HCC) is questionable.High serum levels of chromogranin-A (CgA) have recently been reported in HCC. Impaired hepatic, renal, and heart functions influence circulating CgA. The aim of this study was to assess sensitivity and specificity of serum CgA as a marker of HCC in patients with liver cirrhosis (LC).METHODS: Serum CgA levels were measured by RIA in 339 patients of which 54 HCC, 132 LC, 45 chronic hepatitis (CH), 27 chronic heart failure (CHF), 36 chronic renal failure (CRF), 45 chronic inflammatory bowel disease (IBD)as disease controls and in 75 healthy controls. Patients with liver disease or IBD and concomitant renal and/or heart failure were excluded. Pearson correlation, nonparametric combination test and confidence interval analysis were used for statistical analysis.RESULTS: Serum CgA above normal values (100 ng/mL)were found in 83% of HCC patients, in 48% of LC patients,in 20% of CH patients, in 33% of IBD patients, in 92% of CRF patients, in 100% of CHF patients, and in none of the healthy controls. The mean CgA values in HCC (769±1 046), in LC (249±369), in CH (87±94), in CRF (1 390±1 401), in CHF (577±539), in IBD (146±287) were significantly higher than those in healthy controls (48±18).HCC patients had higher CgA values (P<0.01) than LC,CH, and IBD patients but did not differ from those with CRF or CHF. The 95% CI for the mean (250-1 289 ng/mL)in HCC patients was selected as a CgA range and the lower value of such range was assumed as cut-off.Sensitivity and specificity of CgA, calculated in relation to the cut-off in patients with cirrhosis and HCC, were respectively 61% (CI 48-73%) and 82% (CI 75-88%).Serum α-FP values were >200 ng/mL in 21% of the HCC patients and in none of the LC patients. No significant correlation was found between α-FP and CgA in patients with HCC and in patients with cirrhosis.CONCLUSION: When HCC is suspected and α-FP is normal or <200 ng/mL, CgA serum values represent a complementary diagnostic tool, unless kidney or heart failure is present.Aldo Spadaro Antonino Ajello Carmela Morace Agata Zirilli Graziella D'arrigo Carmelo Luigiano Francesco Martino Anna Bene Domenico Migliorato Santi Turiano Oscar Ferraù Maria Antonietta Freni 2005World Journal of Gastroenterology2005,11,13:4
4Hepatitis B infection among adults in the philippines:A national seroprevalence study显示文摘AIM:To determine the prevalence of hepatitis B surface antigen(HBsAg)seropositivity among adult Filipinos.METHODS:Testing for HBsAg was performed on serum samples from persons aged ≥ 20 years old who participated in the National Nutrition and Health Survey(NNHeS)conducted in 2003.Information on age,sex,marital status,educational attainment,employment status,and income were collected.For this study,marital status was classified as never married or otherwise(i.e.,married,divorced,separated,widowed);educational attainment was classified as high school graduate or below or at least some tertiary education;and employment status was classified as currently employed or currently unemployed.Annual income was divided into 4 quartiles in Philippine pesos(PhP):Q1,≤ PhP 53064;Q2,PhP 53065-92192;Q3,PhP 92193-173387;and Q4,≥ PhP 173388.Prevalence estimates were weighted so that they represented the general population.Social and demographic factors were correlated with HBsAg seropositivity.Multivariate analysis was used to determine independent predictors of HBsAg seropositivity.RESULTS:A total of 2150 randomly selected adults,20 years and over,out of the 4753 adult participants of NNHeS were tested for HBsAg.The HBsAg seroprevalence was 16.7%(95%CI:14.3%-19.1%),which corresponded to an estimated 7278968 persons infected with hepatitis B.There was no significant difference between males and females(17.5% vs 16.0%;P = 0.555).This corresponded to an estimated 3721775 men and 3557193 women infected with hepatitis B.The HBsAg seroprevalence peaked at age 20-39 years old,with declining prevalence in the older age groups.The only independent predictor of HBsAg seropositivity was the annual income,with persons in the highest income quartile being less likely to be HBsAg positive(age-adjusted OR = 0.51;95%CI:0.30-0.86)compared to subjects in the lowest income quartile.Sex,marital status,educational attainment,and employment status were not found to be independent predictors of HBsAg seropositivity.CONCLUSION:The high HBsAg seroprevalence among adults in the Philippines classifies the country as hyperendemic for HBV infection and appears unchanged over the last few decades.Stephen N Wong Janus P Ong Madalinee Eternity D Labio Oscar T Cabahug Maria Lourdes O Daez Erlinda V Valdellon Jose D Sollano Jr Marilyn O Arguillas 2013World Journal of Hepatology2013,5,4:3
5Paclobutrazol and Its Use in Fruit Production:A Review显示文摘There are documentary records referring to paclobutrazol(PBZ)as a growth bioregulator that inhibits the gibberellin synthesis and its application increases yields in fruit and vegetable crop productions.Its agronomic management includes it as an emerging technology to reduce vigour,promote flower induction and flower development in fruit trees with increased economic returns.Its use is banned in some countries because of concerns about residues that can cause harmful effects on the environment.Therefore,the aim of this article was to collect,analyse and summarise relevant information on the use of PBZ in fruit tree production and its possible risks to the environment.The results obtained indicated that the application of PBZ can be effective in solving some problems related to flowering if it is applied in the right amount and at the right time.However,it is necessary to elucidate the physiological processes with which it is associated and its response to be taken into account to increase yield.PBZ is currently used in fruit trees such as mango,lime,apple and guava,increasing their productivity.However,some studies have shown its residual effect on the environment.Therefore,PBZ is a viable strategy,because it presents a series of advantages in the production of fruit trees.However,it is vital to generate protocols that seek its regulation with a rational and sustainable approach.Laura Raquel Orozco-Meléndez Ofelia Adriana Hernández-Rodríguez Oscar Cruz-Álvarez Loreto Robles-Hernández Graciela Dolores Avila-Quezada Esteban Sánchez Chavez DamiánAarón Porras-Flores Dámaris Leopoldina Ojeda-Barrios 2022Phyton-International Journal of Experimental Botany2022,91,1:2
6Deter- mining Vulnerability Importance in Environmental Impact Assessment: The case of Colombia 显示文摘JAVIER T OSCAR D IGNACIO R 2012Envi- ronmental Impact Assessment Review2012,32,1:1
7Magnetic Aftereffect Dependence on Moving Parameter of the Preisach Model 显示文摘OSCAR Alejos TORRE E D 2001Phys B2001,360,:1
8Realized gain and prediction of yield with genetically improved Pinus radiata in New Zealand显示文摘Susan D C Oscar G Judy D H 1999For Sci1999,45,2:1
9Measuring triggering interaction complexity on active database显示文摘Oscar D Mario P Coral C 2001Information Systems2001,26,1:1
10A light-weight authentica- tion scheme for wireless sensor networks 显示文摘OSCAR D M AMPARO F S JOSE M S 2011Ad Hoc Networks2011,9,5:1
11High-performance digital resonant controllers implemented with two integrators显示文摘Yepes A G Freijedo F D ’Oscar L’ opez 2011IEEE Transactions on Power Electronics2011,26,2:1
12Liver failure after an uncovered TIPS procedure associated with hepatic infarction显示文摘Transjugular intrahepatic portosystemic shunt (TIPS) is a safe and effective procedure for the treatment of complications of liver cirrhosis, such as refractory ascites, hepatic hydrothorax and refractory variceal bleeding. The aim of this paper is to describe a rare case of liver failure after a TIPS procedure. A 38-year-old diabetic male with Child-Pugh C liver cirrhosis due to chronic hepatitis C infection who had developed refractory ascites was scheduled for a TIPS procedure. Within 24 h following TIPS placement, the patient developed distributive shock, jaundice, persistentgrade 3 hepatic encephalopathy, severe coagulopathy andacute renal failure. He was treated with lactulose enemas, broad-spectrum antibiotics and blood-derived products. Laboratory data revealed a 100-fold increase in aminotransferases and a non-enhanced computed tomography showed an irregular hypodense area in the right posterior segment of the liver. Despite being initially being in a stable condition, the patient developed progressive liver failure and died 2 mo later. Hepatic infarction is an uncommon phenomenon after a TIPS procedure; however, it can greatly complicate the course of a disease in a patient with an already compromised liver function.Eric López-Méndez Daniel Zamora-Valdés Mariana Díaz-Zamudio Oscar F Fernández-Díaz Lourdes ávila 2010World Journal of Hepatology2010,2,4:1
13On an inverse problem:Recovering of non-smooth solutions to backward heat equation显示文摘Fabien T Prabir D Oscar O 2012Applied Mathematical Modelling2012,36,:1
14Quantification of enzymatic browning in apple slices applying the fractal texture Fourier image显示文摘Roberto Quevedo Marcela Jaramillo Oscar Díaz Franco Pedreschi José Miguel Aguilera 2009Journal of Food Engineering2009,,2:1
15Electroless nickel/PTFE composite coatings 显示文摘Oscar D Roberto E 1989Prod Finish1989,53,7:1
16Synthesis of a new polypyridinic highly conjugated ligand with electron-acceptor properties显示文摘 OSCAR R ANGELICA F 2001Tetrahedron Letters2001,42,:1
17Preparation and characterization of polyaniline-containing Na-AlMCM-41 as composite material with semi-conductor bebavior显示文摘Oscar A Anunziata Marcos B Gomez Costa Rodolfo D Sanchez 2005J Colloid Interf Sci2005,292,:1
18Native Point Defects in Binary InP Semiconductors 显示文摘Roha M Oscar D R Ashutosh K 2012Journal of Materials Science2012,47,21:1
19Controls andpredictability of carbonate facies architecture in a Lower Jurassicthreedimensionalbarriershoalcomplex (Djebel Bou Dahar,High Atlas,Morocco)显示文摘Verwer K Porta G D Oscar M T 2009Sedimentology2009,56,6:1
20Nitrate removal in a riparian wetland of the Appalachian Valley and Ridge Physiographic Province 显示文摘OSCAR P ROBERT F I SHANNON D 2002Journal of Environmental Quality2002,30,1:1
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