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| 1 | Two-dimensional speckle tracking echocardiography for the assessment of atrial function显示文摘Echocardiography is the most common diagnostic method for assessing atrial function but the technique has some limitations. Traditionally, assessment of left atrial function has been performed by measuring volumes with 2D echocardiography. Additionally, it can be assessed with transmitral Doppler and pulmonary vein Doppler. Recently, an alternative method has been incorporated, namely, measurement of myocardial deformation with color tissue Doppler-derived strain. However, this method has several limitations, such as suboptimal reproducibility, angle-dependence, signal artifacts and the fact that it only measures regional strain and does not obtain information about the curved portion of the atrial roof. To overcome these limitations in the quantification of atrial function, the use of speckle tracking echocardiography (STE) strain has been proposed. This technique is not derived from Doppler but rather from 2D echocardiography; it is angle-independent and allows one to measure global as well as regional atrial strain. In this editorial, we describe the physical and pathophysiological concepts of STE and underline the clinical usefulness of this new technique. | Tomás Francisco Cianciulli María Cristina Saccheri Jorge Alberto Lax Alejandra Marina Bermann Daniel Ernesto Ferreiro | 2010 | World Journal of Cardiology2010,2,7: | 39 |
| 2 | Serum cytokine profile in patients with hepatitis B e antigen-negative chronic active hepatitis B and inactive hepatitis B virus carriers显示文摘An insufficient cellular immune response seems to be critical for the immunopathogenesis of chronic hepatitis B virus infection.We have previously demonstrated no differences of T-lymphocyte subsets in blood between inactive hepatitis B s antigen(HBsAg) carriers and patients with HBeAg-negative chronic active hepatitis B.This study investigated the peripheral blood cytokine profile in patients with HBeAg-negative chronic active hepatitis B infection(Group A,n = 21) and inactive HBsAg carriers(Group B,n = 13).Serum cytokines [interferon(IFN)-γ,tumor necrosis factor-α,interleukin(IL)-1b,IL-4,IL-12,IL-10,IL-2,IL-5,IL-8] were analyzed by using flow cytometry.Patients with chronic active disease presented with significantly decreased levels of IFN-γ and IL-10 compared to inac-tive carriers(P = 0.048 and P = 0.008,respectively).In HBeAg-negative chronic active hepatitis B patients,a significant negative correlation of IFN-γ levels with serum hepatitis B viral load was noted(P = 0.021).In conclusion,patients with HBeAg-negative chronic active hepatitis B and HBsAg inactive carriers display a different cytokine profile.Decreased Th1 response observed in patients with chronic active hepatitis B could be implicated in the persistence of virus replication and ongoing progression of liver disease. | Dimitra Dimitropoulou Marina Karakantza Georgios L Theodorou Lydia Leonidou Stelios F Assimakopoulos Athanasia Mouzaki Charalambos A Gogos | 2013 | World Journal of Gastrointestinal Pathophysiology2013,4,1: | 13 |
| 3 | Development of an Arabic version of the National Eye Institute Visual Function Questionnaire as a tool to study eye diseases patients in Egypt显示文摘AIM:To develop and test an Arabic version of the National Eye Institute Visual Function Questionnaire-25(NEI-VFQ-25).METHODS:NEI-VFQ-25 was translated into Arabic according to WHO translation guidelines. We enrolled adult consenting patients with bilateral chronic eye diseases who presented to 14 hospitals across Egypt from October to December 2012, and documented their clinical findings. Psychometric properties were then tested using STATA.RESULTS:We recruited 379 patients, whose mean age was(54.5±15)y. Of 46.2% were males, 227 had cataract,31 had glaucoma, 23 had retinal detachment, 37 had diabetic retinopathy, and 61 had miscellaneous visual defects. Non-response rate and the floor and ceiling numbers of the Arabic version(ARB-VFQ-25) were calculated. Internal consistency was high in all subscales(except general health), with Cronbach-α ranging from0.702-0.911. Test-retest reliability was high(intraclass correlation coefficient 0.79).CONCLUSION:RB-VFQ-25 isareliableandvalidtool for assessing visual functions of Arabic speaking patients. However, some questions had high non-response rates and should be substituted by available alternatives. Our results support the importance of including self-reported visual functions as part of routine ophthalmologic examination. | Nizar Saleh Abdelfattah Mohamed Amgad Ahmed A Salama Marina E Israel Ghada A Elhawary Ahmed E Radwan Mohamed M Elgayar Tamer M EL Nakhal Islam T Elkhateb Heba A Hashem Doha K Embaby Amira A Elabd Reem K Elwy Magdi S Yacoub Hamdy Salem Mohamed Abdel-Baqy Ahmad Kassem | 2014 | International Journal of Ophthalmology(English edition)2014,7,5: | 8 |
| 4 | Arachidyl amido cholanoic acid improves liver glucose and lipid homeostasis in nonalcoholic steatohepatitis via AMPK and mTOR regulation显示文摘BACKGROUND Arachidyl amido cholanoic acid(Aramchol)is a potent downregulator of hepatic stearoyl-CoA desaturase 1(SCD1)protein expression that reduces liver triglycerides and fibrosis in animal models of steatohepatitis.In a phase IIb clinical trial in patients with nonalcoholic steatohepatitis(NASH),52 wk of treatment with Aramchol reduced blood levels of glycated hemoglobin A1c,an indicator of glycemic control.AIM To assess lipid and glucose metabolism in mouse hepatocytes and in a NASH mouse model[induced with a 0.1%methionine and choline deficient diet(0.1MCD)]after treatment with Aramchol.METHODS Isolated primary mouse hepatocytes were incubated with 20μmol/L Aramchol or vehicle for 48 h.Subsequently,analyses were performed including Western blot,proteomics by mass spectrometry,and fluxomic analysis with 13C-uniformly labeled glucose.For the in vivo part of the study,male C57BL/6J mice were randomly fed a control or 0.1MCD for 4 wk and received 1 or 5 mg/kg/d Aramchol or vehicle by intragastric gavage for the last 2 wk.Liver metabolomics were assessed using ultra-high-performance liquid chromatography-time of flight-MS for the determination of glucose metabolism-related metabolites.RESULTS Combination of proteomics and Western blot analyses showed increased AMPK activity while the activity of nutrient sensor mTORC1 was decreased by Aramchol in hepatocytes.This translated into changes in the content of their downstream targets including proteins involved in fatty acid(FA)synthesis and oxidation[PACCα/β(S79),SCD1,CPT1A/B,HADHA,and HADHB],oxidative phosphorylation(NDUFA9,NDUFB11,NDUFS1,NDUFV1,ETFDH,and UQCRC2),tricarboxylic acid(TCA)cycle(MDH2,SUCLA2,and SUCLG2),and ribosome(P-p70S6K[T389]and P-S6[S235/S236]).Flux experiments with 13Cuniformely labeled glucose showed that TCA cycle cataplerosis was reduced by Aramchol in hepatocytes,as indicated by the increase in the number of rounds that malate remained in the TCA cycle.Finally,liver metabolomic analysis showed that glucose homeostasis was improved by Aramchol in 0.1MCD fed mice in a dose-dependent manner,showing normalization of glucose,G6P,F6P,UDP-glucose,and Rbl5P/Xyl5P.CONCLUSION Aramchol exerts its effect on glucose and lipid metabolism in NASH through activation of AMPK and inhibition of mTORC1,which in turn activate FAβ-oxidation and oxidative phosphorylation. | David Fernández-Ramos Fernando Lopitz-Otsoa Laura Delacruz-Villar Jon Bilbao Martina Pagano Laura Mosca Maider Bizkarguenaga Marina Serrano-Macia Mikel Azkargorta Marta Iruarrizaga-Lejarreta Jesús Sot Darya Tsvirkun Sebastiaan Martijn van Liempd Felix M Goni Cristina Alonso María Luz Martínez-Chantar Felix Elortza Liat Hayardeny Shelly C Lu JoséM Mato | 2020 | World Journal of Gastroenterology2020,26,34: | 5 |
| 5 | Genes associated with testicular germ cell tumors and testicular dysgenesis in patients with testicular microlithiasis显示文摘阴囊的 microlithiasis (TM ) 是阴囊的 dysgenesis 症候群(TDS ) 的症状之一。TM 作为阴囊的细菌房间肿瘤(TGCT ) 的一个增进知识的标记特别地有趣。工具包 ligand 基因( KITLG ), BCL2 对手/杀手 1 ( BAK1 ),并且表明对手 4 的 sprouty RTK ( SPRY4 ),基因与 TGCT 的高风险被联系骨头形态基因的蛋白质 7 基因( BMP7 ),转变生长因素贝它受体 3 基因( TGFBR3 ),并且 homeobox D 簇基因( HOXD )与 TDS 有关。使用的聚合酶链反应限制碎片长度多型性( PCR-RFLP )分析,我们为 KITLG 调查了等位基因和遗传型频率( rs995030 , rs1508595 ), SPRY4 ( rs4624820 , rs6897876 ), BAK1 ( rs210138 ), BMP7 ( rs388286 ), TGFBR3 ( rs12082710 ),并且在 142 个 TGCT 病人, 137 个 TM 病人,和 153 个肥沃的人(控制组)的 HOXD ( rs17198432 )。我们在 TM 在 KITLG GG_rs995030 遗传型发现了重要差别(P = 0.01 ) 并且 TGCT 病人(P = 0.0005 ) 与控制相比。我们也揭示了在 KITLG_rs1508595 和 TM 之间的强壮的协会(G 等位基因, P = 0.003;GG 遗传型, P = 0.01 ) 并且在 KITLG_rs1508595 和 TGCT 之间(G 等位基因, P = 0.0001;GG 遗传型, P = 0.0007 ) 。而且,在在 TGCT 组和控制之间的 BMP7_rs388286 有重要差别(T 等位基因, P = 0.00004;TT 遗传型, P = 0.00006 ) 并且在 TM 组和控制之间(T 等位基因, P = 0.04 ) 。HOXD 也与 TGCT 表明了一个强壮的协会(rs17198432 A 等位基因, P = 0.0001;AA 遗传型, P = 0.001 ) 。而且,重要差别在 BAK1_rs210138 G 等位基因在 TGCT 组和控制之间被发现(P = 0.03 ) 并且 GG 遗传型(P = 0.01 ) 。KITLG 和 BMP7 基因,与 TGCT 的发展联系了,可能也与 TM 有关。在摘要, KITLG GG_rs995030, GG_rs1508595, BMP7 TT_rs388286, HOXD AA_rs17198432,和 BAK1 GG_rs210138,遗传型与 TGCT 开发的高风险被联系。 | Ilya S Dantsev Evgeniy V Ivkin Aleksey A Tryakin Dmitriy N Godlevski Oleg Yu Latyshev Victoriya V Rudenko Dmitry S Mikhaylenko Vyacheslav B Chernykh Elena A Volodko Aleksey B Okulov Oleg B Loran Marina V Nemtsova | 2018 | Asian Journal of Andrology2018,20,6: | 4 |
| 6 | Colonic stenting versus emergency surgery for acute left-sided malignant colonic obstruction: a multicentre randomised trial显示文摘 | Jeanin E van Hooft Willem A Bemelman Bas Oldenburg Andreas W Marinelli Martijn F Lutke Holzik Marina J Grubben Mirjam A Sprangers Marcel G Dijkgraaf Paul Fockens | 2011 | Lancet Oncology2011,,4: | 3 |
| 7 | Oncogenic Kras is required for both the initiation and maintenance of pancreatic cancer in mice显示文摘 | Collins Meredith A Bednar Filip Zhang Yaqing Brisset Jean-Christophe Galbán Stefanie Galbán Craig J Rakshit Sabita Flannagan Karen S Adsay N Volkan di Magliano Marina Pasca | 2012 | EN2012,,: | 3 |
| 8 | The presence of ANP in rat peritoneal mast cells显示文摘Atrial natriuretic peptide (ANP) is an important component of the natriuretic peptide system. A great role in many regulatory systems is played by mast cells. Meanwhile involvement of these cells in ANP activity is poorly studied. In this work, we have shown the presence of ANP in rat peritoneal mast cells. Pure fraction of mast cells was obtained by separation of rat peritoneal cells on a Percoll density gradient. By Western blotting, two ANP-immunoreactive proteins of molecular masses of 2.5 kDa and 16.9 kDa were detected in lysates from these mast cells. Electron microscope immunogold labeling has revealed the presence of ANP-immunoreactive material in storage, secreting and released granules of mast cells. Our findings indicate the rat peritoneal mast cells to contain both ANP prohormone and ANP. These both peptides are located in mast cell secretory granules and released by mechanism of degranulation. It is discussed that many mast cell functions might be due to production of natriuretic peptides by these cells. | Marina G MARTYNOVA Olga A BYSTROVA Olga M MOISEEVA Anton L EVDONIN Kirill A KONDRATOV Natalja D MEDVEDEVA | 2005 | Cell Research2005,15,10: | 3 |
| 9 | The influence of post-harvest UV-C hormesis on lycopene, β-carotene, and phenolic content and antioxidant activity of breaker tomatoes显示文摘 | Sergio Bravo Javier García-Alonso Gala Martín-Pozuelo Victoria Gómez Marina Santaella Inmaculada Navarro-González María Jesús Periago | 2012 | Food Research International2012,,1: | 2 |
| 10 | Linagliptin alleviates fatty liver disease in diabetic db/db mice显示文摘AIM To study the effects of linagliptin on the structural signs of non-alcoholic fatty liver disease(NAFLD) in db/db mice. METHODS Male diabetic db /db mice(BKS.Cg-Dock7m+/+Leprdb/J) aged 10 wk received the dipeptidyl peptidase 4(DPP4) inhibitor linagliptin(10 mg/kg) or saline as a placebo once per day by gavage for 8 wk. Intact db/db mice served as controls. Structural changes in the liver were analyzed from light and electron microscopic images of sections from intact, placebo-treated and linagliptin-treated animals. We estimated the changes in hepatocytes, sinusoidal cells, liver microvasculature and lymphatic roots. Hepatic staining for lymphatic vessel endothelial hyaluronan receptor-1(LYVE-1) was assessed by immunohistochemistry. RESULTS In 18-wk-old diabetic mice, liver steatosis(predominantly microvesicular and mediovesicular steatosis) was accompanied by dilation of the roots of the lymphatic system, interlobular blood vessels and bile canaliculi. Compared to saline-treated mice, linagliptin-treated mice exhibited a reduction in the mean numeral densities of hepatocytes with lipid droplets(92.4% ± 1.7% vs 64.9% ± 5.8% per field of view, P = 0.0002) and a lower proportion of hepatocytes with a high density of lipid droplets(20.7% ± 3.6% vs 50.4% ± 3.1%, P = 0.0007). We observed heterogeneous hepatocytes and relatively preserved cell structures in the linagliptin group. Dilation of blood and lymphatic vessels, as well as ultrastructural changes in the hepatocyte endoplasmic reticulum and mitochondria, were alleviated by linagliptin treatment. In intact and placebo-treated mice, immunohistochemical staining for LYVE-1 was observed in the endothelial cells of interlobular lymphatic vessels and on the membranes of some endothelial sinusoidal cells. We observed an enlarged LYVE-1 reaction area in linagliptin-treated mice compared to intact and placebo-treated mice. The improvement in the structural parameters of the liver in linagliptin-treated mice was independent to changes in the plasma glucose levels. CONCLUSION The DPP4 inhibitor linagliptin alleviates liver steatosis and structural changes in the hepatic microvasculature and lymphatic roots in a model of NAFLD in diabetic db/db mice. | Svetlana V Michurina Irina Ju Ishenko Vadim V Klimontov Sergey A Archipov Natalia E Myakina Marina A Cherepanova Eugenii L Zavjalov Galina V Koncevaya Vladimir I Konenkov | 2016 | World Journal of Diabetes2016,7,19: | 2 |
| 11 | Microbiota of the gastrointestinal tract: Friend or foe?显示文摘The gut microbiota is currently considered an external organ of the human body that provides important mechanisms of metabolic regulation and protection.The gut microbiota encodes over 3 million genes,which is approximately 150 times more than the total number of genes present in the human genome.Changes in the qualitative and quantitative composition of the microbiome lead to disruption in the synthesis of key bacterial metabolites,changes in intestinal barrier function,and inflammation and can cause the development of a wide variety of diseases,such as diabetes,obesity,gastrointestinal disorders,cardiovascular issues,neurological disorders and oncological concerns.In this review,I consider issues related to the role of the microbiome in the regulation of intestinal barrier function,its influence on physiological and pathological processes occurring in the body,and potential new therapeutic strategies aimed at restoring the gut microbiome.Herewith,it is important to understand that the gut microbiota and human body should be considered as a single biological system,where change of one element will inevitably affect its other components.Thus,the study of the impact of the intestinal microbiota on health should be considered only taking into account numerous factors,the role of which has not yet been fully elucidated. | Marina A Senchukova | 2023 | World Journal of Gastroenterology2023,29,1: | 2 |
| 12 | Insulin resistance impairs sustained response rate to peginterferon plus ribavirin in chronic hepatitis C patients显示文摘 | Manuel Romero-Gómez Maria Del Mar Viloria Raúl J. Andrade Javier Salmerón Moisés Diago Conrado M. Fernández-Rodríguez Raquel Corpas Marina Cruz Lourdes Grande Luis Vázquez Paloma Mu?oz-de-Rueda Pilar López-Serrano Ana Gila María L. Gutiérrez Celia Pérez A | 2005 | Gastroenterology2005,,3: | 2 |
| 13 | Personalising pancreas cancer treatment:When tissue is the issue显示文摘The treatment of advanced pancreatic cancer has not moved much beyond single agent gemcitabine until recently when protocols such as FOLFIRINOX(fluorouracil,leucovorin,irinotecan and oxaliplatin)and nab-paclitaxelgemcitabine have demonstrated some improved outcomes.Advances in technology especially in massively parallel genome sequencing has progressed our understanding of the biology of pancreatic cancer especially the candidate signalling pathways that are involved in tumourogenesis and disease course.This has allowed identification of potentially actionable mutations that may be targeted by new biological agents.The heterogeneity of pancreatic cancer makes tumour tissue collection important with the aim of being able to personalise therapies for the individual as opposed to a one size fits all approach to treatment of the condition.This paper reviews the developments in this area of translational research and the ongoing clinical studies that will attempt to move this into the everyday oncology practice. | Katrin M Sjoquist Venessa T Chin Lorraine A Chantrill Chelsie O'Connor Chris Hemmings David K Chang Angela Chou Marina Pajic Amber L Johns Adnan M Nagrial Andrew V Biankin Desmond Yip | 2014 | World Journal of Gastroenterology2014,20,24: | 2 |
| 14 | Synthesis, characterization and photocatalytic activity of different metal-dopedtitania systems 显示文摘 | Colmenares J C Aramendia M A Marinas A | 2006 | Applied Catalysis a-General2006,306,: | 1 |
| 15 | A topology control approach for utilizing multiple channels in multi-radio wireless Mesh networks显示文摘 | MARINA M K DAS S R SUBRAMANIAN A P | 2010 | Computer Networks2010,54,2: | 1 |
| 16 | Myocardial tumor necrosis factor-a secretion in hypertensive and heart failure-prone rats显示文摘 | MARINA R B RUEY H K SYLVIA A | 1999 | Physiol Heart Circ1999,277,2: | 1 |
| 17 | Inactivation of Cryptosporidium parvum oocysts with ozone and monochlo- famine at low temperature显示文摘 | Driedger A M Rennecker J L Marinas B J | 2001 | Water Research2001,35,1: | 1 |
| 18 | The utility of modeling in evaluation planning 显示文摘 | Marina A Adler | 2002 | Evaluation and Program Planning2002,,25: | 1 |
| 19 | Accuracy of Ultrasound Elastography in the Diagnosis of Thyroid Cancer in a Low-risk Population显示文摘 | A. Vidal-Casariego L. López-González A. Jiménez-Pérez M. Ballesteros-Pomar G. Kyriakos A. Urioste-Fondo R. álvarez-San Martín I. Cano-Rodríguez J. Jiménez-García de la Marina | 2012 | Exp Clin Endocrinol Diabetes2012,,10: | 1 |
| 20 | Gene structure, organization, expression, and potential regulatory mechanisms of arginine catabolism in Enterococcus faecalis显示文摘 | Barcelona-Andrs B Marina A Rubio V | 2002 | Journal of Bacteriology2002,184,22: | 1 |