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https://www.readbyqxmd.com/read/28094224/synthesis-of-pharmacologically-important-naphthoquinones-and-anticancer-activity-of-2-benzyllawsone-through-dna-topoisomerase-ii-inhibition
#1
Balagani Sathish Kumar, Kusumoori Ravi, Amit Kumar Verma, Kaneez Fatima, Mohammad Hasanain, Arjun Singh, Jayanta Sarkar, Suaib Luqman, Debabrata Chanda, Arvind S Negi
Naphthoquinones are naturally occurring biologically active entities. Practical de novo syntheses of three naphthoquinones i.e. lawsone (1), lapachol (2), and β-lapachone (3b) have been achieved from commercially available starting materials. The conversion of lapachol (2) to β-lapachone (3b) was achieved through p-TSA/Iodine/BF3-etherate mediated regioselective cyclisation. Further, 2-alkyl and 2-benzyllawsone derivatives have been prepared as possible anticancer agents. Four derivatives exhibited significant anticancer activity and the best analogue i...
December 28, 2016: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28087116/application-of-whole-exome-sequencing-in-elucidating-the-phenotype-and-genotype-spectrum-of-junctional-epidermolysis-bullosa-a-preliminary-experience-of-a-tertiary-care-centre-in-india
#2
Vamsi K Yenamandra, Shamsudheen K Vellarikkal, Manoj Kumar, Madhumita R Chowdhury, Rijith Jayarajan, Ankit Verma, Vinod Scaria, Sridhar Sivasubbu, Subrata B Ray, Amit K Dinda, Madhulika Kabra, Punit Kaur, Vinod K Sharma, Gomathy Sethuraman
BACKGROUND: Junctional epidermolysis bullosa (JEB) is a diverse group of genodermatoses associated with extreme skin fragility. Despite several well-characterized genetic studies, molecular diagnosis of this heterogeneous group is still challenging. Recent advances in the field of genomics have seen the successful implementation of whole exome sequencing (WES) as a fast and efficient diagnostic strategy in several genodermatoses. OBJECTIVE: In view of the scarcity and need of molecular studies for JEB in India, we sought to explore the potential of WES in understanding the mutational spectrum of this rare, in certain subtypes lethal, sub-group of EB...
December 29, 2016: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28079009/emerging-roles-of-calreticulin-in-cancer-implications-for-therapy
#3
Kavya Venkateswaran, Amit Verma, Anant Narayan Bhatt, Anju Shrivastava, Kailash Manda, Hanumantharao G Raj, Ashok Prasad, Christophe Len, Virinder S Parmar, Bilikere Dwarakanath
Calreticulin (CRT), initially identified as a ubiquitous calcium-binding protein in the endoplasmic reticulum, has emerged as a multifunctional protein with roles in calcium homeostasis, molecular chaperoning and cell adhesion. Emerging evidence suggests its involvement in tumorigenesis facilitating proliferation, migration, and adhesion. CRT translocated to the cell surface (ecto-CRT) serves as a phagocytic signal for immunogenic cell death (ICD) mediated through dendritic cells (DCs) and cytotoxic T-cell activation thereby making tumors susceptible to immunotherapy-based anti-cancer strategies...
January 11, 2017: Current Protein & Peptide Science
https://www.readbyqxmd.com/read/28031539/recurrent-genetic-defects-on-chromosome-5q-in-myeloid-neoplasms
#4
Naoko Hosono, Hideki Makishima, Reda Mahfouz, Bartlomiej Przychodzen, Kenichi Yoshida, Andres Jerez, Thomas LaFramboise, Chantana Polprasert, Michael J Clemente, Yuichi Shiraishi, Kenichi Chiba, Hiroko Tanaka, Satoru Miyano, Masashi Sanada, Edward Cui, Amit K Verma, Michael A McDevitt, Alan F List, Yogen Saunthararajah, Mikkael A Sekeres, Jacqueline Boultwood, Seishi Ogawa, Jaroslaw P Maciejewski
BACKGROUND: Deletion of chromosome 5q (del(5q)) is the most common karyotypic abnormality in myeloid neoplasms. MATERIALS AND METHODS: To define the pathogenic molecular features associated with del(5q), next-generation sequencing was applied to 133 patients with myeloid neoplasms (MDS; N = 69, MDS/MPN; N = 5, sAML; N = 29, pAML; N = 30) with del(5q) as a sole abnormally or a part of complex karyotype and results were compared to molecular features of patients diploid for chr5...
December 23, 2016: Oncotarget
https://www.readbyqxmd.com/read/28018084/recurrent-anterior-instability-of-the-shoulder-associated-with-coracoid-fracture-an-unusual-presentation
#5
Nikhil Verma, Deepak Chahar, Ankit Chawla, Ravi Sreenivasan, Amite Pankaj
Recurrent anterior shoulder instability following shoulder dislocation has an incidence as high as 68% among the younger population, however its association with coracoid fracture is extremely rare. Majority of coracoid fractures reported earlier have been shown to be associated with seizure disorder. We report a case of displaced coracoid fracture associated with recurrent anterior instability in a patient with no history of seizure disorder and its implications in causation as well as management are discussed...
October 2016: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28018068/customized-iliac-prosthesis-for-reconstruction-in-giant-cell-tumour-a-unique-treatment-approach
#6
Tarun Verma, Ankur Sharma, Amit Sharma, Lalit Maini
Giant cell tumour (GCT) of flat bones of pelvis is extremely rare. GCT of the ilium and ischium represent less than 0.05% of all GCT. Iliac bone GCT has been treated traditionally by intra-lesion curettage with bone grafting, wide resection with or without reconstruction and hemi-pelvectomy in very aggressive tumours. None of the above treatments were without morbidities. Reconstruction using bone grafts and bone cement has also been inadequate. In GCT, where life expectancy is not decreased significantly, surgical treatment should be aimed at giving optimum functional outcome...
October 2016: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28018062/non-union-fracture-neck-femur-in-a-toddler-reconstructed-by-valgus-osteotomy-a-minimally-invasive-approach
#7
Amit Sharma, Anurag Tiwari, Tarun Verma, Lalit Maini
BACKGROUND: Non-union is one of the devastating complications of fracture neck of femur. Though a very rarely encountered entity in a toddler (1-3 years paediatric age group), non-united femoral neck fractures are reported in developing countries because of mismanagement by quacks and delay in referrals. For operative treatment, many different procedures have been described, including close/open reduction and internal fixation using K-wires, cannulated screws, fibula or nails. There is no evidence in the literature that one or other implant influences the rate of postoperative complications, such as avascular femoral head necrosis or coxa vara...
October 2016: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/27977152/life-cycle-analysis-of-bitumen-transportation-to-refineries-by-rail-and-pipeline
#8
Balwinder Nimana, Aman Verma, Giovanni Di Lullo, Md Mustafizur Rahman, Christina E Canter, Babatunde Olateju, Hao Zhang, Amit Kumar
Crude oil is currently transported primarily by pipelines and rail from extraction sites to refineries around the world. This research evaluates energy use and greenhouse gas (GHG) emissions for three scenarios (synthetic crude oil and dilbit with and without diluent return) in which 750 000 bpd of Alberta's bitumen is transported 3000 km to determine which method has a lower environmental impact. Each scenario has a pipeline and rail pathway, and the dilbit without diluent return scenario has an additional heated bitumen pathway, which does not require diluent...
January 3, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/27909050/notch-pathway-is-activated-via-genetic-and-epigenetic-alterations-and-is-a-therapeutic-target-in-clear-cell-renal-cancer
#9
Tushar D Bhagat, Yiyu Zou, Shizeng Huang, Jihwan Park, Matthew B Palmer, Caroline Hu, Wejuan Li, Niraj Shenoy, Orsolya Giricz, Gaurav Choudhary, Yiting Yu, Yi-An Ko, Maria C Izquierdo, Ae Seo Deok Park, Nishanth Vallumsetla, Remi Laurence, Robert Lopez, Masako Suzuki, James Pullman, Justin Kaner, Benjamin Gartrell, A Ari Hakimi, John M Greally, Bharvin Patel, Karim Benhadji, Kith Pradhan, Amit Verma, Katalin Susztak
Clear cell renal cell carcinoma (CCRCC) is an incurable malignancy in advanced stages and needs newer therapeutic targets. Transcriptomic analysis of CCRCCs and matched microdissected renal tubular controls revealed overexpression of NOTCH ligands and receptors in tumor tissues. Examination of the TCGA RNA-seq dataset also revealed widespread activation of NOTCH pathway in a large cohort of CCRCC samples. Samples with NOTCH pathway activation were also clinically distinct and were associated with better overall survival...
December 1, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27867885/trimester-specific-reference-interval-for-thyroid-hormones-during-pregnancy-at-a-tertiary-care-hospital-in-haryana-india
#10
Rajesh Rajput, Bhagat Singh, Vasudha Goel, Amit Verma, Shashi Seth, Smiti Nanda
BACKGROUND: Reference intervals for thyroid hormone during pregnancy need to be gestational age, method, and population specific and there is need to establish trimester-specific thyroid levels for the different population across the world. The aim of this study was to establish trimester-specific reference range for thyroid hormone during pregnancy in a tertiary care center in Haryana. MATERIALS AND METHODS: A total of 1430 pregnant women were recruited for the study...
November 2016: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27847209/in-vivo-study-for-anti-hyperglycemic-potential-of-aqueous-extract-of-basil-seeds-ocimum-basilicum-linn-and-its-influence-on-biochemical-parameters-serum-electrolytes-and-haematological-indices
#11
Sachin Chaudhary, Amit Semwal, Hitesh Kumar, Harish Chandra Verma, Amit Kumar
The study introduced anti-hyperglycemic influence of aqueous extract of Ocimum basilicum seeds (AEOBS) in Streptozotocin (STZ) induced diabetic rats and estimating its potential to ameliorate altered level of biochemical parameters, serum electrolytes level and haematological indices along with its effect on body weight of treated rats. The albino rats were selected to observe oral glucose tolerance test by oral intake of aq. glucose solution (4g/kg, body weight) in normal rats and estimation of blood glucose level after administration of AEOBS at 250mg/kg, 500mg/kg and standard drug glibenclamide at 0...
December 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27833663/genome-sequencing-assembly-annotation-and-analysis-of%C3%A2-staphylococcus-xylosus%C3%A2-strain-dmb3-bh1-reveals-genes-responsible-for-pathogenicity
#12
Gurwinder Kaur, Amit Arora, Sathyaseelan Sathyabama, Nida Mubin, Sheenam Verma, Shanmugam Mayilraj, Javed N Agrewala
BACKGROUND: Staphylococcus xylosus is coagulase-negative staphylococci (CNS), found occasionally on the skin of humans but recurrently on other mammals. Recent reports suggest that this commensal bacterium may cause diseases in humans and other animals. In this study, we present the first report of whole genome sequencing of S. xylosus strain DMB3-Bh1, which was isolated from the stool of a mouse. RESULTS: The draft genome of S. xylosus strain DMB3-Bh1 consisted of 2,81,0255 bp with G+C content of 32...
2016: Gut Pathogens
https://www.readbyqxmd.com/read/27807650/human-ex-vivo-oral-tissue-imaging-using-spectral-domain-polarization-sensitive-optical-coherence-tomography
#13
Priyanka Sharma, Yogesh Verma, Khageswar Sahu, Sudhir Kumar, Amit V Varma, Jyoti Kumawat, Pradeep Kumar Gupta
We report the use of spectral domain polarization sensitive optical coherence tomography for ex-vivo imaging of human oral mandibular tissue samples. Our results show that compared to the changes observed in the epithelium thickness and the decay constant of A-scan intensity profile, a much larger degree of change was observed in the phase retardation for tissue sites progressing from normal to the malignant state. These results suggest that monitoring of tissue retardance can help in better differentiation of normal and cancerous oral tissue sites...
January 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/27777768/jak2-v617f-mutation-multiple-hematologic-and-non-hematologic-processes-an-association
#14
Kenneth G Liu, Amit Verma, Olga Derman, Noah Kornblum, Murali Janakiram, Ira Braunschweig, Ramakrishna Battini
BACKGROUND: Population studies showed that patients with JAK2 V617F mutation had increased mortality, and increased risk of any cancer, hematologic cancer, and myeloproliferative disease. CASE PRESENTATION: A 68-year-old Asian male with JAK2 V617F mutation developed four different hematologic and non-hematologic neoplastic processes. In 2009, he was diagnosed with stage IA lung adenocarcinoma and also noted to have worsening leukocytosis and thrombocytosis with peak platelet count of 1,054,000/mL)...
2016: Biomarker Research
https://www.readbyqxmd.com/read/27773405/cardiovascular-risk-profile-and-management-of-atrial-fibrillation-in-india-real-world-data-from-realiseaf-survey
#15
C Narasimhan, Jagmohan Singh Verma, A G Ravi Kishore, Balbir Singh, Sameer Dani, Kamaldeep Chawala, Azizul Haque, Aftab Khan, Mohan Nair, Amit Vora, V Rajasekhar, Joy M Thomas, Anoop Gupta, Ajay Naik, V S Prakash, Lisa Naditch, P Gabriel Steg
BACKGROUND: Atrial fibrillation (AF) is the most common sustained arrhythmia with high risk for many cardiovascular (CV) complications. Adherence to recommended management guidelines is important to avoid complications. In India, there is little knowledge on how AF is managed in real world. METHODS: This is a cross-sectional study of patients in India enrolled in RealiseAF survey between February 2010 and March 2010 with a diagnosis of AF within the last 12 months...
September 2016: Indian Heart Journal
https://www.readbyqxmd.com/read/27753658/immunohistochemical-expression-of-antitissue-transglutaminase-2-in-tissue-injuries-an-interpretation-beyond-celiac-disease
#16
Prasenjit Das, Ramakant Rawat, Anil K Verma, Geetika Singh, Archana G Vallonthaiel, Rajni Yadav, Gaurav P S Gahlot, Amit K Dinda, Vineet Ahuja, Siddhartha Datta Gupta, Sanjay K Agarwal, Govind K Makharia
Tissue transglutaminase 2 enzyme plays a diverse role in intracellular and extracellular functioning. Aberrant expression of anti-TG2 antibody has recently been proposed for extraintestinal identification of celiac disease (CeD), but its utility is questionable. To examine whether anti-TG2 immunohistochemical (IHC) staining can be of diagnostic value in identifying extraintestinal involvement in CeD, tissue blocks of patients with IgA nephropathies (IgAN), minimal change disease, membranous glomerulonephritis, membrano-proliferative glomerulonephritis, normal kidney, intestinal biopsies from CeD, tropical sprue, nonspecific duodenitis, and inflammatory bowel disease; liver biopsies from patients with chronic hepatitis B and C, acute liver failure (ALF), and CeD-associated liver diseases were retrieved and subjected to IHC staining for anti-tissue transglutaminase 2 enzyme...
October 7, 2016: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/27651574/a-retrospective-case-control-study-evaluating-the-role-of-mifepristone-for-induction-of-labor-in-women-with-previous-cesarean-section
#17
Chanderdeep Sharma, Anjali Soni, Pawan K Soni, Suresh Verma, Ashok Verma, Amit Gupta
OBJECTIVE: To investigate the role of "mifepristone" for induction of labor (IOL) in pregnant women with prior cesarean section (CS). METHODS: In this retrospective study, all pregnant women with prior CS who received oral mifepristone (400 mg) for IOL (as per clear obstetric indications) [group 1] were compared with pregnant women with prior CS who had spontaneous onset of labor (SOL) [group 2], with respect to incidence of vaginal delivery, CS, duration of labor, and various maternal and fetal outcomes...
October 2016: Journal of Obstetrics and Gynaecology of India
https://www.readbyqxmd.com/read/27630901/signet-ring-cell-carcinoma-of-urachal-origin-presenting-as-irritative-lower-urinary-tract-symptoms-and-pain-abdomen-a-rare-case-report
#18
Amit Verma, Vinay Tomar
Signet ring cell carcinoma of urachus is a very rare tumour. It generally presents as a high grade, high stage tumour and in most of the cases it has regional or distant metastasis at the time of presentation. It is known to have a uniformly poor prognosis. We present here a very interesting and rare case report of signet ring cell carcinoma of urachus in a 61-year-old male who presented with irritative lower urinary tract symptoms and pain abdomen. High index of suspicion led to the early diagnosis and timely surgical intervention...
July 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27614366/reduced-burden-of-childhood-diarrheal-diseases-through-increased-access-to-water-and-sanitation-in-india-a-modeling-analysis
#19
Arindam Nandi, Itamar Megiddo, Ashvin Ashok, Amit Verma, Ramanan Laxminarayan
Each year, more than 300,000 children in India under the age of five years die from diarrheal diseases. Clean piped water and improved sanitation are known to be effective in reducing the mortality and morbidity burden of diarrhea but are not yet available to close to half of the Indian population. In this paper, we estimate the health benefits (reduced cases of diarrheal incidence and deaths averted) and economic benefits (measured by out-of-pocket treatment expenditure averted and value of insurance gained) of scaling up the coverage of piped water and improved sanitation among Indian households to a near-universal 95% level...
August 31, 2016: Social Science & Medicine
https://www.readbyqxmd.com/read/27588249/complex-multiple-renal-calculi-stone-distribution-pelvicalyceal-anatomy-and-site-of-puncture-as-predictors-of-pcnl-outcome
#20
Amit Verma, Vinay Tomar, Shersingh Yadav
PURPOSE: Management of patients with complex multiple renal calculi has always remained challenging and they pose many difficulties during percutaneous nephrolithotomy (PCNL) like higher incidence of residual calculus and multiple tracts requirement. The aim of our study was to evaluate the impact of pelvicalyceal system (PCS) anatomy, stone distribution and the site of puncture on the outcome of PCNL in patients with complex multiple renal calculi. MATERIALS AND METHODS: One hundred and ten patients with complex multiple renal calculi undergoing PCNL during January 2015 to December 2015 were enrolled in our study...
2016: SpringerPlus
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