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https://www.readbyqxmd.com/read/29616053/the-aspergillus-flavus-spermidine-synthase-spds-gene-is-required-for-normal-development-aflatoxin-production-and-pathogenesis-during-infection-of-maize-kernels
#1
Rajtilak Majumdar, Matt Lebar, Brian Mack, Rakesh Minocha, Subhash Minocha, Carol Carter-Wientjes, Christine Sickler, Kanniah Rajasekaran, Jeffrey W Cary
Aspergillus flavus is a soil-borne saprophyte and an opportunistic pathogen of both humans and plants. This fungus not only causes disease in important food and feed crops such as maize, peanut, cottonseed, and tree nuts but also produces the toxic and carcinogenic secondary metabolites (SMs) known as aflatoxins. Polyamines (PAs) are ubiquitous polycations that influence normal growth, development, and stress responses in living organisms and have been shown to play a significant role in fungal pathogenesis...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29540100/vascular-injuries-due-to-cerclage-passer-relevant-anatomy-and-note-of-caution
#2
Agraharam Devendra, M Avinash, Dinesh Chidambaram, Jayaramaraju Dheenadhayalan, S Rajasekaran
PURPOSE: The cerclage passer instrument was introduced for aiding percutaneous reduction in spiral femur fractures, thereby overcoming the risk of devascularization of the fracture ends commonly associated with traditional open cerclage wiring techniques. This may, however, predispose to iatrogenic vascular injuries owing to the proximity of the vessels and several other factors. We report four cases with femoral artery (superficial and deep) injuries caused by the cerclage passer in proximal femur and distal femur shaft fractures and incidence of these injuries in our institution...
January 2018: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/29420290/probing-optically-silent-superfluid-stripes-in-cuprates
#3
S Rajasekaran, J Okamoto, L Mathey, M Fechner, V Thampy, G D Gu, A Cavalleri
Unconventional superconductivity in the cuprates coexists with other types of electronic order. However, some of these orders are invisible to most experimental probes because of their symmetry. For example, the possible existence of superfluid stripes is not easily validated with linear optics, because the stripe alignment causes interlayer superconducting tunneling to vanish on average. Here we show that this frustration is removed in the nonlinear optical response. A giant terahertz third harmonic, characteristic of nonlinear Josephson tunneling, is observed in La1...
February 2, 2018: Science
https://www.readbyqxmd.com/read/29318414/accuracy-of-pedicle-screw-insertion-by-airo-%C3%A2-intraoperative-ct-in-complex-spinal-deformity-assessed-by-a-new-classification-based-on-technical-complexity-of-screw-insertion
#4
S Rajasekaran, Manindra Bhushan, Siddharth Aiyer, Rishi Kanna, Ajoy Prasad Shetty
PURPOSE: To develop a classification based on the technical complexity encountered during pedicle screw insertion and to evaluate the performance of AIRO® CT navigation system based on this classification, in the clinical scenario of complex spinal deformity. MATERIALS AND METHODS: 31 complex spinal deformity correction surgeries were prospectively analyzed for performance of AIRO® mobile CT-based navigation system. Pedicles were classified according to complexity of insertion into five types...
January 9, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29279998/modified-anterior-only-reduction-and-fixation-for-traumatic-cervical-facet-dislocation-ao-type-c-injuries
#5
Rishi M Kanna, Ajoy P Shetty, S Rajasekaran
PURPOSE: Surgical reduction of uni and bi-facetal dislocations of the cervical spine (AO type C injuries) can be performed by posterior, anterior or combined approaches. Ease of access, low infection rates and less risks of neurological worsening has popularized anterior approach. However, the reduction of locked cervical facets can be intricate through anterior approach. We analyzed the safety, efficacy and outcomes at a minimum 1 year, of a novel anterior reduction technique for consecutively treated cervical facet dislocations...
December 26, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29239791/in-vitro-flowering-in-oldenlandia-umbellata-l
#6
Shuvra Kanta Behera, Chandrasekaran Rajasekaran, S Payas, Devanand P Fulzele, C George Priya Doss, Ramamoorthy Siva
BACKGROUND: Oldenlandia umbellata L. (Indian madder) is an antique Ayurvedic Indian herb and a source of various anthraquinone derivatives. The red dye from its roots has been used in diverse applications since ancient times. OBJECTIVES: To establish reliable and effective protocols for in vitro flowering of O. umbellata. MATERIALS AND METHODS: For in vitro flowering, organogenic calli were subcultured onto Murashige and Skoog (MS) medium supplemented with various concentrations of Naphthalene acetic acid (NAA) (0...
November 24, 2017: Journal of Ayurveda and Integrative Medicine
https://www.readbyqxmd.com/read/29229678/epitope-mapping-of-serca2a-identifies-an-antigenic-determinant-that-induces-mainly-atrial-myocarditis-in-a-j-mice
#7
Bharathi Krishnan, Chandirasegaran Massilamany, Rakesh H Basavalingappa, Arunakumar Gangaplara, Rajkumar A Rajasekaran, Muhammad Z Afzal, Vahid Khalilzad-Sharghi, You Zhou, Jean-Jack Riethoven, Shyam S Nandi, Paras K Mishra, Raymond A Sobel, Jennifer L Strande, David Steffen, Jay Reddy
Sarcoplasmic/endoplasmic reticulum Ca2+ adenosine triphosphatase (SERCA)2a, a critical regulator of calcium homeostasis, is known to be decreased in heart failure. Patients with myocarditis or dilated cardiomyopathy develop autoantibodies to SERCA2a suggesting that they may have pathogenetic significance. In this report, we describe epitope mapping analysis of SERCA2a in A/J mice that leads us to make five observations: 1) SERCA2a contains multiple T cell epitopes that induce varying degrees of myocarditis...
January 15, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29215703/design-synthesis-and-characterization-of-%C3%AE-%C3%AE-unsaturated-carboxylic-acid-and-its-urea-based-derivatives-that-explores-novel-epigenetic-modulators-in-human-non-small-cell-lung-cancer-a549-cell-line
#8
Anusha Chidambaram, Kavya Sundararaju, Ramesh K Chidambaram, Rajasekaran Subbiah, John M Jayaraj, Karthikeyan Muthusamy, Ravikumar Vilwanathan
Histone deacetylase inhibitors (HDACi) are a small molecule chemotherapeutics that target the chromatin remodeling through the regulation of histone and non-histone proteins. These inhibitors directed against histone deacetylase (HDAC) enzymes have become an important therapeutic tool in oncology; consequently, scientific efforts have fortified the quest for newer and novel HDACi, which forces the design of structurally innovative HDACi. Various urea containing compounds exhibited admirable anticancer activity...
December 7, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29063376/recurrent-heat-shock-impairs-the-proliferation-and-differentiation-of-c2c12-myoblasts
#9
Daniel J Bolus, Gobinath Shanmugam, Madhusudhanan Narasimhan, Namakkal S Rajasekaran
Heat-related illness and injury are becoming a growing safety concern for the farmers, construction workers, miners, firefighters, manufacturing workers, and other outdoor workforces who are exposed to heat stress in their routine lives. A primary response by a cell to an acute heat shock (HS) exposure is the induction of heat-shock proteins (HSPs), which chaperone and facilitate cellular protein folding and remodeling processes. While acute HS is well studied, the effect of repeated bouts of hyperthermia and the sustained production of HSPs in the myoblast-myotube model system of C2C12 cells are poorly characterized...
October 24, 2017: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/29042286/protein-kinase-and-lipase-inhibitors-of-inositide-metabolism-deplete-ip-7-indirectly-in-pancreatic-%C3%AE-cells-off-target-effects-on-cellular-bioenergetics-and-direct-effects-on-ip6k-activity
#10
Subu Surendran Rajasekaran, Christopher Illies, Stephen B Shears, Huanchen Wang, Thais S Ayala, Joilson O Martins, Elisabetta Daré, Per-Olof Berggren, Christopher J Barker
Inositol pyrophosphates have emerged as important regulators of many critical cellular processes from vesicle trafficking and cytoskeletal rearrangement to telomere length regulation and apoptosis. We have previously demonstrated that 5-di-phosphoinositol pentakisphosphate, IP7 , is at a high level in pancreatic β-cells and is important for insulin exocytosis. To better understand IP7 regulation in β-cells, we used an insulin secreting cell line, HIT-T15, to screen a number of different pharmacological inhibitors of inositide metabolism for their impact on cellular IP7 ...
January 2018: Cellular Signalling
https://www.readbyqxmd.com/read/29024402/blueberry-metabolites-attenuate-lipotoxicity-induced-endothelial-dysfunction
#11
Divya Bharat, Rafaela Ramos Mororo Cavalcanti, Chrissa Petersen, Nathan Begaye, Brett Ronald Cutler, Marcella Melo Assis Costa, Renata Kelly Luna Gomes Ramos, Marina Ramos Ferreira, Youyou Li, Leena P Bharath, Emma Toolson, Paul Sebahar, Ryan E Looper, Thunder Jalili, Namakkal S Rajasekaran, Zhenquan Jia, J David Symons, Pon Velayutham Anandh Babu
SCOPE: Lipotoxicity-induced endothelial dysfunction is an important vascular complication associated with diabetes. Clinical studies support the vascular benefits of blueberry anthocyanins, but the underlying mechanism is unclear. The hypothesis that metabolites of blueberry anthocyanins attenuate lipotoxicity-induced endothelial dysfunction was tested. METHODS AND RESULTS: Human aortic endothelial cells (HAECs) were treated for 6 h with either: (i) the parent anthocyanins (malvidin-3-glucoside and cyanidin-3-glucoside); or (ii) the blueberry metabolites (hydroxyhippuric acid, hippuric acid, benzoic acid-4-sulfate, isovanillic acid-3-sulfate, and vanillic acid-4-sulfate), at concentrations known to circulate in humans following blueberry consumption...
January 2018: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28989838/sacral-fractures-and-associated-injuries
#12
REVIEW
Ricardo Rodrigues-Pinto, Mark F Kurd, Gregory D Schroeder, Christopher K Kepler, James C Krieg, Jörg H Holstein, Carlo Bellabarba, Reza Firoozabadi, F Cumhur Oner, Frank Kandziora, Marcel F Dvorak, Conor P Kleweno, Luiz R Vialle, S Rajasekaran, Klause J Schnake, Alexander R Vaccaro
STUDY DESIGN: Literature review. OBJECTIVE: The aim of this review is to describe the injuries associated with sacral fractures and to analyze their impact on patient outcome. METHODS: A comprehensive narrative review of the literature was performed to identify the injuries associated with sacral fractures. RESULTS: Sacral fractures are uncommon injuries that result from high-energy trauma, and that, due to their rarity, are frequently underdiagnosed and mistreated...
October 2017: Global Spine Journal
https://www.readbyqxmd.com/read/28986357/excess-%C3%AF-6-fatty-acids-influx-in-aging-drives-metabolic-dysregulation-electrocardiographic-alterations-and-low-grade-chronic-inflammation
#13
Vasundhara Kain, Kevin A Ingle, Maureen Kachman, Heidi Baum, Gobinath Shanmugam, Namakkal S Rajasekaran, Martin E Young, Ganesh V Halade
Maintaining a balance of ω-6 and ω-3 fatty acids is essential for cardiac health. Current ω-6 and ω-3 fatty acids in the American diet have shifted from the ideal ratio of 2:1 to almost 20:1; while there is a body of evidence that suggests the negative impact of such a shift in younger organisms, the underlying age-related metabolic signaling in response to the excess influx of ω-6 fatty acids is incompletely understood. In the present study, young (6 mo old) and aging (≥18 mo old) mice were fed for 2 mo with a ω-6-enriched diet...
February 1, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28923309/altered-penile-caveolin-expression-in-diabetes-potential-role-in-erectile-dysfunction
#14
Jay Parikh, Alice Zemljic-Harpf, Johnny Fu, Dimosthenis Giamouridis, Tung-Chin Hsieh, Adam Kassan, Karnam S Murthy, Valmik Bhargava, Hemal H Patel, M Raj Rajasekaran
BACKGROUND: The pathophysiology of increased severity of erectile dysfunction in men with diabetes and their poor response to oral pharmacotherapy are unclear. Defective vascular endothelium and consequent impairment in the formation and action of nitric oxide (NO) are implicated as potential mechanisms. Endothelial NO synthase, critical for NO generation, is localized to caveolae, plasma membrane lipid rafts enriched in structural proteins, and caveolins. Type 2 diabetes mellitus (T2DM)-induced changes in caveolin expression are recognized to play a role in cardiovascular dysfunction...
October 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/28918873/use-of-ganga-hospital-open-injury-severity-scoring-for-determination-of-salvage-versus-amputation-in-open-type-iiib-injuries-of-lower-limbs-in-children-an-analysis-of-52-type-iiib-open-fractures
#15
K Venkatadass, Tarani Sai Prasanth Grandhi, S Rajasekaran
INTRODUCTION AND AIMS: Open injuries in children are rare compared to adults. In children with major open injuries, there is no specific scoring system to guide when to amputate or salvage the limb. The use of available adult scoring systems may lead to errors in management. The role of Ganga Hospital Open Injury Severity Scoring (GHOISS) for open injuries in adults is well established and its applicability for pediatric open injuries has not been studied. This study was done to analyse the usefulness of GHOISS in pediatric open injuries and to compare it with MESS(Mangled Extremity Severity Score)...
November 2017: Injury
https://www.readbyqxmd.com/read/28900744/structural-vertebral-endplate-nomenclature-and-etiology-a-study-by-the-issls-spinal-phenotype-focus-group
#16
Uruj Zehra, Cora Bow, Jeffrey C Lotz, Frances M K Williams, S Rajasekaran, Jaro Karppinen, Keith D K Luk, Michele C Battiê, Dino Samartzis
PURPOSE: Vertebral endplate abnormalities may be associated with disc degeneration and, perhaps, pain generation. However, consensus definitions for endplate findings on spine MRI do not exist, posing a challenge to compare findings between studies and ethnic groups. The following survey was created to characterize the variability among the global spine community regarding endplate structural findings with respect to nomenclature and etiology. METHODS: A working group within the International Society for the Study of the Lumbar Spine (ISSLS) Spinal Phenotype Focus Group was established to assess the endplate phenotype...
January 2018: European Spine Journal
https://www.readbyqxmd.com/read/28879874/diffusion-tensor-imaging-in-spinal-pathology-a-robust-investigative-tool-in-clinical-practice
#17
Rishi M Kanna, S Rajasekaran
No abstract text is available yet for this article.
September 2017: Neurology India
https://www.readbyqxmd.com/read/28768233/identification-of-transcriptome-signature-for-myocardial-reductive-stress
#18
Justin M Quiles, Madhusudhanan Narasimhan, Timothy Mosbruger, Gobinath Shanmugam, David Crossman, Namakkal S Rajasekaran
The nuclear factor erythroid 2 like 2 (Nfe2l2/Nrf2) is a master regulator of antioxidant gene transcription. We recently identified that constitutive activation of Nrf2 (CaNrf2) caused reductive stress (RS) in the myocardium. Here we investigate how chronic Nrf2 activation alters myocardial mRNA transcriptome in the hearts of CaNrf2 transgenic (TG-low and TG-high) mice using an unbiased integrated systems approach and next generation RNA sequencing followed by qRT-PCR methods. A total of 246 and 1031 differentially expressed genes (DEGs) were identified in the heart of TGL and TGH in relation to NTG littermates at ~ 6 months of age...
October 2017: Redox Biology
https://www.readbyqxmd.com/read/28713109/comparative-evaluation-of-neem-mouthwash-on-plaque-and-gingivitis-a-double-blind-crossover-study
#19
Md Jalaluddin, U B Rajasekaran, Sam Paul, R S Dhanya, C B Sudeep, V J Adarsh
AIM: The present study aimed at evaluating the impact of neem-containing mouthwash on plaque and gingivitis. MATERIALS AND METHODS: This randomized, double-blinded, crossover clinical trial included 40 participants aged 18 to 35 years with washout period of 1 week between the crossover phases. A total of 20 participants, each randomly allocated into groups I and II, wherein in the first phase, group I was provided with 0.2% chlorhexidine gluconate and group II with 2% neem mouthwash...
July 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28673258/differential-regulation-of-mirna-and-mrna-expression-in-the-myocardium-of-nrf2-knockout-mice
#20
Justin M Quiles, Madhusudhanan Narasimhan, Gobinath Shanmugam, Brett Milash, John R Hoidal, Namakkal S Rajasekaran
No abstract text is available yet for this article.
July 3, 2017: BMC Genomics
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