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Joel K Annor-Gyamfi, Krishna Kumar Gnanasekaran, Richard A Bunce
An efficient route to substituted 1-aryl-1 H -indazoles has been developed and optimized. The method involved the preparation of arylhydrazones from acetophenone or benzaldehyde substituted by fluorine at C2 and nitro at C5, followed by deprotonation and nucleophilic aromatic substitution (SN Ar) ring closure in 45-90%. Modification of this procedure to a one-pot domino process was successful in the acetophenone series (73-96%), while the benzaldehyde series (63-73%) required a step-wise addition of reagents...
March 16, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Swaminathan Ganesh, Gandham E Jonathan, Bimal Patel, Krishna Prabhu
No abstract text is available yet for this article.
March 2018: Neurology India
Nicola Schieda, Robert S Lim, Satheesh Krishna, Matthew D F McInnes, Trevor A Flood, Rebecca E Thornhill
OBJECTIVE: The objective of our study was to evaluate tumor attenuation and texture on unenhanced CT for potential differentiation of low-grade from high-grade chromophobe renal cell carcinoma (RCC). MATERIALS AND METHODS: A retrospective study of 37 consecutive patients with chromophobe RCC (high-grade, n = 13; low-grade, n = 24) who underwent preoperative unenhanced CT between 2011 and 2016 was performed. Two radiologists (readers 1 and 2) blinded to the histologic grade of the tumor and outcome of the patients subjectively evaluated tumor homogeneity (3-point scale: completely homogeneous, mildly heterogeneous, or mostly heterogeneous)...
March 16, 2018: AJR. American Journal of Roentgenology
Uma Maheswari, Krishna Ghosh, Sudha Rani Sadras
The original version of this article unfortunately contained a mistake.
March 15, 2018: Apoptosis: An International Journal on Programmed Cell Death
Krishna B Singh, Eun-Ryeong Hahm, Lora H Rigatti, Daniel P Normolle, Jian-Min Yuan, Shivendra V Singh
We have shown previously that dietary administration of phenethyl isothiocyanate (PEITC), a small molecule from edible cruciferous vegetables, significantly decreases the incidence of poorly-differentiated prostate cancer in Transgenic Adenocarcinoma of Mouse Prostate (TRAMP) mice without any side effects. In this study, we investigated the role of c-Myc-regulated glycolysis in prostate cancer chemoprevention by PEITC. Exposure of LNCaP (androgen-responsive) and 22Rv1 (castration-resistant) human prostate cancer cells to PEITC resulted in suppression of expression as well as transcriptional activity of c-Myc...
March 15, 2018: Cancer Prevention Research
Luis Malpica, Agustin Pimentel, Isildinha M Reis, Eduardo Gotuzzo, Lazaros Lekakis, Krishna Komanduri, Thomas Harrington, Glen N Barber, Juan C Ramos
Adult T-cell leukemia/lymphoma (ATLL) is a fatal disease caused by human T-cell leukemia virus type 1 (HTLV-1). We retrospectively analyzed 195 patients with ATLL (lymphomatous n = 96, acute n = 80, unfavorable chronic n = 7, chronic n = 5, smoldering n = 3, and unclassified n = 4) diagnosed between 1987 and 2016 (median age 52 years, 77% Afro-Caribbean). Hypercalcemia was associated with acute ATLL (65%, vs 23% lymphomatous) ( P = .012). The median survival for patients treated with modern therapies between 2000 and 2016 was 4...
March 27, 2018: Blood Advances
Raches Ella, Radhika Bobba, Sanjay Muralidhar, Sudhir Babji, Krishna Mohan Vadrevu, Maharaj Kishan Bhan
BACKGROUND: The World Health Organization recommends that rotavirus vaccines should be included in all national immunization programs. Some currently licensed oral rotavirus vaccines contain a buffering agent (either as part of a ready-to-use liquid formulation or added during reconstitution) to reduce possible degradation of the vaccine virus in the infant gut, which poses several programmatic challenges (the large dose volume or the reconstitution requirement) during vaccine administration...
March 15, 2018: Human Vaccines & Immunotherapeutics
Ghanshyam Kumar Satyapal, Santosh Kumar Mishra, Amrita Srivastava, Rajesh Kumar Ranjan, Krishna Prakash, Rizwanul Haque, Nitish Kumar
In middle Gangetic plain, high arsenic concentration is present in water, which causes a significant health risk. Total 48 morphologically distinct arsenite resistant bacteria were isolated from middle Gangetic plain. The minimum inhibitory concentration (MIC) values of arsenite varied widely in the range 1-15 mM of the isolates. On the basis of their MIC, two isolates, AK1 (KY569423) and AK9 (KY569424) were selected. The analysis of the 16S rRNA gene sequence of selected isolates revealed that they are belong to the genus Pseudomonas ...
March 2018: Biotechnology Reports
K Hari Krishna, Muthuvel Suresh Kumar
Eukaryotic translation initiation factor 2-alpha kinase (EIF2AK) proteins inhibit protein synthesis at translation initiation level, in response to various stress conditions, including oxidative stress, heme deficiency, osmotic shock, and heat shock. Origin and functional diversification of EIF2AK sequences remain ambiguous. Here we determine the origin and molecular evolution of EIF2AK proteins in lower eukaryotes and studied the molecular basis of divergence among sub-family sequences. Present work emphasized primitive origin of EIF2AK4 sub-family gene in lower eukaryotes of protozoan lineage...
2018: PloS One
Lu Zeng, R Daniel Kortschak, Joy M Raison, Terry Bertozzi, David L Adelson
Transposable Elements (TEs) are mobile DNA sequences that make up significant fractions of amniote genomes. However, they are difficult to detect and annotate ab initio because of their variable features, lengths and clade-specific variants. We have addressed this problem by refining and developing a Comprehensive ab initio Repeat Pipeline (CARP) to identify and cluster TEs and other repetitive sequences in genome assemblies. The pipeline begins with a pairwise alignment using krishna, a custom aligner. Single linkage clustering is then carried out to produce families of repetitive elements...
2018: PloS One
Manjunath Siddaramaiah, BolaSadashiva Satish Rao, Manjunath B Joshi, Anirbit Datta, S Sandya, Vasudha Vishnumurthy, Subhash Chandra, Subramanya G Nayak, Kapaettu Satyamoorthy, Krishna Kishore Mahato
In the present study, we have designed a laser induced fluorescence (LIF) based instrumentation and developed a sensitive methodology for the effective separation, visualization, identification and analysis of proteins on a single platform. In this method, intrinsic fluorescence spectra of proteins were detected after separation on one or two dimensional Sodium Dodecyl Sulfate-Tris(2-carboxyethyl)phosphine (SDS-TCEP) polyacrylamide gel electrophoresis (PAGE) and the data were analyzed. The MATLAB assisted software was designed for the development of PAGE fingerprint for the visualization of protein after one and two-dimensional protein separation...
March 14, 2018: Journal of Biophotonics
Hema Singh, Pradeep Tiwari, Vijay Bhavi, Praveen Singh Chaudhary, Prashanth Suravajhala, M Krishna Mohan, Sandeep Kumar Mathur
Background: Human height is a classic polygenic trait and currently available data explains only 10% of the phenotypic variation in height. Almost 60%-80% of the children coming to pediatric and endocrinology outpatient department for the evaluation of short stature are still labeled as idiopathic. Objectives: The aim of this study is to identify various chromosomal alterations causing idiopathic short stature (ISS) and short stature with dysmorphic features not pertaining to known genetic syndromes...
January 2018: Indian Journal of Endocrinology and Metabolism
Visesato Mor, Antonella Rella, Amir M Farnoud, Ashutosh Singh, Mansa Munshi, Arielle Bryan, Shamoon Naseem, James B Konopka, Iwao Ojima, Erika Bullesbach, Alan Ashbaugh, Michael J Linke, Melanie Cushion, Margaret Collins, Hari Krishna Ananthula, Larry Sallans, Pankaj B Desai, Nathan P Wiederhold, Annette W Fothergill, William R Kirkpatrick, Thomas Patterson, Lai Hong Wong, Sunita Sinha, Guri Giaever, Corey Nislow, Patrick Flaherty, Xuewen Pan, Gabriele Vargas Cesar, Patricia de Melo Tavares, Susana Frases, Kildare Miranda, Marcio L Rodrigues, Chiara Luberto, Leonardo Nimrichter, Maurizio Del Poeta
No abstract text is available yet for this article.
March 13, 2018: MBio
Miri Shnayder, Aharon Nachshon, Benjamin Krishna, Emma Poole, Alina Boshkov, Amit Binyamin, Itay Maza, John Sinclair, Michal Schwartz, Noam Stern-Ginossar
Primary infection with human cytomegalovirus (HCMV) results in a lifelong infection due to its ability to establish latent infection, with one characterized viral reservoir being hematopoietic cells. Although reactivation from latency causes serious disease in immunocompromised individuals, our molecular understanding of latency is limited. Here, we delineate viral gene expression during natural HCMV persistent infection by analyzing the massive transcriptome RNA sequencing (RNA-seq) atlas generated by the Genotype-Tissue Expression (GTEx) project...
March 13, 2018: MBio
Xiaochi Xu, Connor Mack, Zachary J Cleland, Chaitanya Krishna Prasad Vallabh, Vivek S Dave, Cetin Cetinkaya
Currently, the compressed tablet and its oral administration is the most popular drug delivery modality in medicine. The accurate porosity and tensile strength characterization of a tablet design is vital for predicting its performance such as disintegration, dissolution, and drug-release efficiency upon administration as well as ensuring its mechanical integrity. In current work, a non-destructive contact ultrasonic approach and an associated testing procedure are presented and employed to quantify and relate the acoustically extracted mechanical properties of pharmaceutical compacts to direct porosity and tensile strength measurements...
March 10, 2018: International Journal of Pharmaceutics
Krishna Kant, Mohammad-Ali Shahbazi, Vivek Priy Dave, Tien Anh Ngo, Vinayaka Aaydha Chidambara, Quyen Than Linh, Dang Duong Bang, Anders Wolff
Rapid detection of foodborne pathogens at an early stage is imperative for preventing the outbreak of foodborne diseases, known as serious threats to human health. Conventional bacterial culturing methods for foodborne pathogen detection are time consuming, laborious, and with poor pathogen diagnosis competences. This has prompted researchers to call the current status of detection approaches into question and leverage new technologies for superior pathogen sensing outcomes. Novel strategies mainly rely on incorporating all the steps from sample preparation to detection in miniaturized devices for online monitoring of pathogens with high accuracy and sensitivity in a time-saving and cost effective manner...
March 10, 2018: Biotechnology Advances
Chandrasekaran Jayaraman, Chaithanya Krishna Mummidisetty, Alannah Mannix-Slobig, Lori McGee Koch, Arun Jayaraman
BACKGROUND: Monitoring physical activity and leveraging wearable sensor technologies to facilitate active living in individuals with neurological impairment has been shown to yield benefits in terms of health and quality of living. In this context, accurate measurement of physical activity estimates from these sensors are vital. However, wearable sensor manufacturers generally only provide standard proprietary algorithms based off of healthy individuals to estimate physical activity metrics which may lead to inaccurate estimates in population with neurological impairment like stroke and incomplete spinal cord injury (iSCI)...
March 13, 2018: Journal of Neuroengineering and Rehabilitation
Michelle R Zeidler, Jennifer L Martin, Eric C Kleerup, Hartmut Schneider, Michael N Mitchell, Nadia N Hansel, Krishna Sundar, Helena Schotland, Robert C Basner, James Wells, Jerry A Krishnan, Gerard J Criner, Stephanie Cristenson, Samuel Krachman, M Safwan Badr
Study Objectives: Sleep quality is poor among patients with COPD, and studies show sleep disturbance is associated with low overall quality of life in this population. We evaluated the impact of patient-reported sleep quality and sleep apnea risk on disease-specific and overall quality of life within COPD patients enrolled in the SPIROMICS study, after accounting for demographics and COPD disease severity. Methods: Baseline data from 1,341 participants [892 mild/moderate COPD (FEV1≥50% predicted); 449 severe COPD (FEV1<50%)], were used to perform three nested (blocks) regression models to predict quality of life (Short Form-12 mental and physical components and St...
March 9, 2018: Sleep
Vivek Krishna Pulakazhi Venu, Mahmoud Saifeddine, Koichiro Mihara, Mahmoud El-Daly, Darrell Belke, Jonathan L E Dean, Edward R O'Brien, Simon A Hirota, Morley D Hollenberg
BACKGROUND AND PURPOSE: Previously, we demonstrated that exogenous Heat Shock Protein 27 (HSP27/gene, HSPB1) treatment of human endothelial progenitor cells (EPCs) increases the synthesis and secretion of VEGF, improves EPC-migration/re-endothelialization and decreases neo-intima formation, suggesting a role for HSPB1 in regulating EPC function. We hypothesized that HSPB1 could also affect mature endothelial cells (ECs) to alter EC-mediated vasoreactivity in vivo. Our work focused on eNOS/NO-dependent relaxation caused by acetylcholine and the coagulation pathway-activated receptor, proteinase-activated receptor-2 (PAR2)...
March 12, 2018: British Journal of Pharmacology
Krishna R Veeramah, Andreas Rott, Melanie Groß, Lucy van Dorp, Saioa López, Karola Kirsanow, Christian Sell, Jens Blöcher, Daniel Wegmann, Vivian Link, Zuzana Hofmanová, Joris Peters, Bernd Trautmann, Anja Gairhos, Jochen Haberstroh, Bernd Päffgen, Garrett Hellenthal, Brigitte Haas-Gebhard, Michaela Harbeck, Joachim Burger
Modern European genetic structure demonstrates strong correlations with geography, while genetic analysis of prehistoric humans has indicated at least two major waves of immigration from outside the continent during periods of cultural change. However, population-level genome data that could shed light on the demographic processes occurring during the intervening periods have been absent. Therefore, we generated genomic data from 41 individuals dating mostly to the late 5th/early 6th century AD from present-day Bavaria in southern Germany, including 11 whole genomes (mean depth 5...
March 12, 2018: Proceedings of the National Academy of Sciences of the United States of America
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