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https://www.readbyqxmd.com/read/27911394/confirmation-of-myocardial-ischemia-and-reperfusion-injury-in-mice-using-surface-pad-electrocardiography
#1
Stephanie L C Scofield, Krishna Singh
Many animal models have been established for the study of myocardial remodeling and heart failure due to its status as the number one cause of mortality worldwide. In humans, a pathologic occlusion forms in a coronary artery and reperfusion of that occluded artery is considered essential to maintain viability of the myocardium at risk. Although essential for myocardial recovery, reperfusion of the ischemic myocardium creates its own tissue injury. The physiologic response and healing of an ischemia/reperfusion injury is different from a chronic occlusion injury...
November 24, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27910780/naringenin-ameliorates-doxorubicin-toxicity-and-hypoxic-condition-in-dalton-s-lymphoma-ascites-tumor-mouse-model-evidence-from-electron-paramagnetic-resonance-imaging
#2
Venkatesan Kathiresan, Swathika Subburaman, Arun Venkatesh Krishna, Mathivanan Natarajan, Gandhidasan Rathinasamy, Kumaresan Ganesan, Murugesan Ramachandran
Doxorubicin (DOX) is a well-known cytotoxic agent used extensively as a chemotherapeutic drug to eradicate a wide variety of human cancers. Reactive oxygen species (ROS)-mediated oxidative stress during DOX treatment can induce cardiac, renal, and hepatic toxicities, which can constrain its use as a potential cytotoxic agent. The present work investigates the antioxidant potential of naringenin (NAR) against DOXinduced toxicities of a Dalton's lymphoma ascites (DLA) tumor-bearing mouse model. Mice were randomized into four groups: a negative control, positive control, DOX (2...
2016: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/27910299/native-and-aberrant-left-anterior-descending-artery-arising-from-left-and-right-coronary-sinus-respectively-a-very-rare-congenital-coronary-anomaly
#3
Hiten Patel, Krishna Nemani, Priyank Shah, Arthur Millman, Fayez Shamoon, Meherwan Joshi
No abstract text is available yet for this article.
February 2017: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/27908259/a-novel-liquid-chromatography-tandem-mass-spectrometry-method-for-the-estimation-of-bilirubin-glucuronides-and-its-application-to-in-vitro-enzyme-assays
#4
Siva Prasad Putluru, Murali Krishna Matta, Deepak Ahire, Murali Subramanian, Michael Sinz, Sandhya Mandlekar
Bilirubin is a toxic waste product of metabolism, eliminated mainly through UGT1A1 mediated conjugation to mono- and di-glucuronides. Due to the potentially low Km value of bilirubin glucuronidation, the quantitative sensitivity obtained with most UV/visible light detection methods are not sufficient to accurately calculate UGT1A1 enzyme kinetics and inhibition properties of new chemical entities at low bilirubin concentrations. In addition, bilirubin, as well as its metabolites, are unstable during sample preparation and bioanalysis...
November 24, 2016: Drug Metabolism Letters
https://www.readbyqxmd.com/read/27908166/improved-targeting-accuracy-of-lung-tumor-biopsies-with-scanning-beam-digital-x-ray-tomosynthesis-image-guidance
#5
Geoff Nelson, Meng Wu, Cameron Hinkel, Ganesh Krishna, Tobias Funk, Jarrett Rosenberg, Rebecca Fahrig
PURPOSE: Electromagnetic navigation bronchoscopy (ENB) provides improved targeting accuracy during transbronchial biopsies of suspicious nodules. The greatest weakness of ENB-based guidance is the registration divergence that exists between the planning CT, acquired days or weeks before the intervention, and the patient on the table on the day of the intervention. Augmenting ENB guidance with real-time tomosynthesis imaging during the intervention could mitigate the divergence and further improve the yield of ENB-guided transbronchial biopsies...
December 2016: Medical Physics
https://www.readbyqxmd.com/read/27908053/detection-of-fricatives-using-s-transform
#6
Hari Krishna Vydana, Anil Kumar Vuppala
Two prime acoustic characteristics of fricatives are the concentration of spectral energy above 3 kHz and having noisy nature. Spectral domain approaches for detecting fricatives rely on capturing the information from spectral energy distribution. In this work, S-transform based time-frequency representation is explored for detecting fricatives from continuous speech. S-transform based time-frequency representation exhibits a progressive resolution which is tailored for localizing the high frequency events (i...
November 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27906664/pearls-oy-sters-plasma-cell-meningitis-an-uncommon-complication-of-multiple-myeloma
#7
Neville Jadeja, Krishna Nalleballe, Jerome Graber
No abstract text is available yet for this article.
November 15, 2016: Neurology
https://www.readbyqxmd.com/read/27906164/early-sigmoidoscopy-or-colonoscopy-is-associated-with-improved-hospital-outcomes-in-ulcerative-colitis-related-hospitalization
#8
Kenneth Obi, Alice Hinton, Lindsay Sobotka, Razvan Arsenescu, Somashekar G Krishna, Edward J Levine, Cheng Zhang
OBJECTIVES: Performing a sigmoidoscopy or colonoscopy is recommended for assessment of disease activity, excluding infection, and guiding medical treatment during ulcerative colitis (UC)-related hospitalizations. However, it is unknown whether the timing of endoscopy impacts clinical outcomes. The objective of our study was to determine the impact of timing of endoscopy on hospital outcomes in patients with UC-related hospitalizations. METHODS: This is a cross-sectional study using data from the Nationwide Inpatient Sample database (2006-2013)...
December 1, 2016: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/27905564/direct-preparation-of-carbon-nanotube-intramolecular-junctions-on-structured-substrates
#9
Jianing An, Zhaoyao Zhan, Gengzhi Sun, Hari Krishna Salila Vijayalal Mohan, Jinyuan Zhou, Young-Jin Kim, Lianxi Zheng
Leveraging the unique properties of single-walled carbon nanotube (SWNT) intramolecular junctions (IMJs) in innovative nanodevices and next-generation nanoelectronics requires controllable, repeatable, and large-scale preparation, together with rapid identification and comprehensive characterization of such structures. Here we demonstrate SWNT IMJs through directly growing ultralong SWNTs on trenched substrates. It is found that the trench configurations introduce axial strain in partially suspended nanotubes, and promote bending deformation in the vicinity of the trench edges...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27903896/img-abc-new-features-for-bacterial-secondary-metabolism-analysis-and-targeted-biosynthetic-gene-cluster-discovery-in-thousands-of-microbial-genomes
#10
Michalis Hadjithomas, I-Min A Chen, Ken Chu, Jinghua Huang, Anna Ratner, Krishna Palaniappan, Evan Andersen, Victor Markowitz, Nikos C Kyrpides, Natalia N Ivanova
Secondary metabolites produced by microbes have diverse biological functions, which makes them a great potential source of biotechnologically relevant compounds with antimicrobial, anti-cancer and other activities. The proteins needed to synthesize these natural products are often encoded by clusters of co-located genes called biosynthetic gene clusters (BCs). In order to advance the exploration of microbial secondary metabolism, we developed the largest publically available database of experimentally verified and predicted BCs, the Integrated Microbial Genomes Atlas of Biosynthetic gene Clusters (IMG-ABC) (https://img...
November 29, 2016: Nucleic Acids Research
https://www.readbyqxmd.com/read/27903297/variability-of-staffing-and-staff-mix-across-acute-care-units-in-alberta-canada
#11
Krishna Sharma, Stephanie E Hastings, Esther Suter, Judy Bloom
BACKGROUND: The health workforce has a crucial position in healthcare, and effective distribution of the workforce is one of the critical areas for healthcare improvement. This requires a proper understanding of the allocation of healthcare providers including staffing levels and staffing variability within a healthcare system. High variability may imply significant differences in outcomes and greater opportunity to better distribute staffing and improve patient outcomes. The objective of this study was to examine staffing variation across acute care units in a large and integrated healthcare system...
December 1, 2016: Human Resources for Health
https://www.readbyqxmd.com/read/27900953/feedback-control-policies-employed-by-people-using-intracortical-brain-computer-interfaces
#12
Francis R Willett, Chethan Pandarinath, Beata Jarosiewicz, Brian A Murphy, William D Memberg, Christine H Blabe, Jad Saab, Benjamin L Walter, Jennifer A Sweet, Jonathan P Miller, Jaimie M Henderson, Krishna V Shenoy, John D Simeral, Leigh R Hochberg, Robert F Kirsch, A Bolu Ajiboye
OBJECTIVE: When using an intracortical BCI (iBCI), users modulate their neural population activity to move an effector towards a target, stop accurately, and correct for movement errors. We call the rules that govern this modulation a 'feedback control policy'. A better understanding of these policies may inform the design of higher-performing neural decoders. APPROACH: We studied how three participants in the BrainGate2 pilot clinical trial used an iBCI to control a cursor in a 2D target acquisition task...
November 30, 2016: Journal of Neural Engineering
https://www.readbyqxmd.com/read/27899361/a-case-of-rheumatic-fibrinous-pericarditis
#13
Krishna Kumar Mohanan Nair, Sanjay Ganapathi, Harikrishnan Sivadasanpillai, Sivasankaran Sivasubramanian, Ajitkumar Valaparambil, Jaganmohan Tharakan
No abstract text is available yet for this article.
December 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27899093/microbiological-profile-of-corneal-ulcer-cases-diagnosed-in-a-tertiary-care-ophthalmological-institute-in-nepal
#14
Sharmila Suwal, Dinesh Bhandari, Pratigya Thapa, Mohan Krishna Shrestha, Jyoti Amatya
BACKGROUND: Corneal ulcer, a major cause of monocular blindness in developing countries has consistently been listed as the major cause of blindness and visual disability in many of the developing nations in Asia, Africa and the Middle East, ranking second only to cataract. This study was carried out to determine the microbiological profile of corneal ulcer cases diagnosed among patients visiting Tilganga Institute of Ophthalmology (TIO), Nepal. METHODS: A total of 101 corneal scrapping samples were tested for routine culture and antibiotic susceptibility at the pathology department of TIO Nepal from April to October 2014...
November 29, 2016: BMC Ophthalmology
https://www.readbyqxmd.com/read/27898321/anaerobic-batch-conversion-of-pine-wood-torrefaction-condensate
#15
Tharaka Rama Krishna C Doddapaneni, Ramasamy Praveenkumar, Henrik Tolvanen, Marja R T Palmroth, Jukka Konttinen, Jukka Rintala
Organic compound rich torrefaction condensate, owing to their high water content and acidic nature, have yet to be exploited for practical application. In this study, microbial conversion of torrefaction condensate from pine wood through anaerobic batch digestion (AD) to produce methane was evaluated. Torrefaction condensate exhibited high methane potentials in the range of 430-492mL/g volatile solids (VS) and 430-460mL/gVS under mesophilic and thermophilic conditions, respectively. Owing to the changes in the composition, the methane yields differed with the torrefaction condensates produced at different temperatures (225, 275 and 300°C), with a maximum of 492±18mL/gVS with the condensate produced at 300°C under mesophilic condition...
November 22, 2016: Bioresource Technology
https://www.readbyqxmd.com/read/27897396/acid-mediated-synthesis-of-ordered-mesoporous-aluminosilicates-the-challenge-and-the-promise
#16
Selvam Parasuraman, Nunna Vamsi Krishna
A novel intrinsic hydrolysis method was employed, for the first-time, to synthesize well-ordered H-AlSBA-15 with trivalent aluminium exclusively in tetrahedral framework structure of SBA-15. Unlike other methods, which involve incorporation of aluminum ions in, both, framework (Brønsted) and non-framework (Lewis) sites of the silicate matrix, the intrinsic hydroly-sis method isomorphously substitutes aluminium ions in the tetrahedral network even at high aluminium content. This unique approach relies mainly on hydrolysis rates of inorganic (silicon and aluminium) precursors used for the preparation in such a way that the condensation occurs simultaneously so as to overcome the usually encountered difficulties in stabilizing aluminium ions in the silicate matrix...
November 29, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/27897241/functional-involvement-of-a-mitogen-activated-protein-kinase-module-osmkk3-osmpk7-oswrk30-in-mediating-resistance-against-xanthomonas-oryzae-in-rice
#17
Siddhi Kashinath Jalmi, Alok Krishna Sinha
Mitogen-activated protein kinases (MAPKs) are highly conserved signaling modules in eukaryotes, transmitting signals from upstream receptor to downstream target by phosphorelay mechanism. Here we report involvement of a poorly characterized group C MAPK of rice namely, OsMPK7 along with its upstream MAPK kinase, OsMKK3 and downstream target, OsWRKY30 during Xanthomonas oryzae infection, a causal agent of leaf blight disease in rice. X. oryzae infection resulted in induction of OsMPK7 and OsMKK3. OsMKK3 was found to physically interact and phosphorylate OsMPK7...
November 29, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27896904/contrast-induced-encephalopathy-following-cardiac-catheterization
#18
Roberto Spina, Neil Simon, Romesh Markus, David Wm Muller, Krishna Kathir
OBJECTIVES: To describe the epidemiology, pathophysiology, clinical presentation, and management of contrast-induced encephalopathy (CIE) following cardiac catheterization. BACKGROUND: CIE is an acute, reversible neurological disturbance directly attributable to the intra-arterial administration of iodinated contrast medium. METHODS: The PubMed database was searched and all cases in the literature were retrieved and reviewed. RESULTS: 52 reports of CIE following cardiac catheterization were found...
November 29, 2016: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/27896888/response-of-narrow-qrs-tachycardia-to-late-coupled-pvc-what-is-the-mechanism
#19
Krishna Kumar Mohanan Nair, Narayanan Namboodiri, Gurbhej Singh, Suji Karunakaran, Bharatraj Banavalikar, S P Abhilash, Anees Thajudeen, Ajitkumar Valaparambil
No abstract text is available yet for this article.
November 29, 2016: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/27895517/influence-of-curcumin-on-the-pharmacodynamics-and-pharmacokinetics-of-gliclazide-in-animal-models
#20
Leela Krishna Vatsavai, Eswar Kumar Kilari
PURPOSE: Patients suffering from obesity-related diseases use multiple prescription drugs to control their condition, and it is therefore essential to determine the safety and efficacy of any combination. Gliclazide is one of the most commonly used drug of choice for treatment of type 2 diabetes, and curcumin is a widely used herbal supplement to counter obesity condition. The objective of this study was to investigate the effect of oral administration of curcumin on pharmacodynamics and pharmacokinetics of gliclazide in rats and rabbits to further evaluate the safety and effectiveness of this combination...
2016: Journal of Experimental Pharmacology
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