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Sandhya P, Sharma D, Vellarikkal S, Surin A, Jayarajan R, Verma A, Dixit V, Sivasubbu S, Danda D, Scaria V. AB0188 Systematic Analysis of the Oral Microbiome in Primary SjÖgren's Syndrome Suggest Enrichment of Distinct Microbes. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.5721] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Hargreaves RJ, Hoppin J, Sevigny J, Patel S, Chiao P, Klimas M, Verma A. Optimizing Central Nervous System Drug Development Using Molecular Imaging. Clin Pharmacol Ther 2015; 98:47-60. [PMID: 25869938 DOI: 10.1002/cpt.132] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 04/07/2015] [Indexed: 12/12/2022]
Abstract
Advances in multimodality fusion imaging technologies promise to accelerate the understanding of the systems biology of disease and help in the development of new therapeutics. The use of molecular imaging biomarkers has been proven to shorten cycle times for central nervous system (CNS) drug development and thereby increase the efficiency and return on investment from research. Imaging biomarkers can be used to help select the molecules, doses, and patients most likely to test therapeutic hypotheses by stopping those that have little chance of success and accelerating those with potential to achieve beneficial clinical outcomes. CNS imaging biomarkers have the potential to drive new medical care practices for patients in the latent phases of progressive neurodegenerative disorders by enabling the detection, preventative treatment, and tracking of disease in a paradigm shift from today's approaches that have to see the overt symptoms of disease before treating it.
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Parikh PM, Prabhash K, Bhattacharyya GS, Sirohi B, Rajappa S, Verma A, Raja T. Ignore molecular oncology at your peril. Indian J Cancer 2015; 51:150-3. [PMID: 25104198 DOI: 10.4103/0019-509x.138258] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Gupta A, Sharma YK, Vellarikkal SK, Jayarajan R, Dixit V, Verma A, Sivasubbu S, Scaria V. Whole-exome sequencing solves diagnostic dilemma in a rare case of sporadic acrokeratosis verruciformis. J Eur Acad Dermatol Venereol 2015; 30:695-7. [PMID: 25622760 DOI: 10.1111/jdv.12983] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Verma A, Bhatnagar V. Reply. J Indian Assoc Pediatr Surg 2015; 20:52. [PMID: 25552837 PMCID: PMC4268762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Verma A, Muddaiah P, Krishna Murthy A, Sanga R. Exploring an effective tobacco prevention programme for Indian adolescents. Public Health 2015; 129:23-8. [PMID: 25555400 DOI: 10.1016/j.puhe.2014.11.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 08/25/2014] [Accepted: 11/14/2014] [Indexed: 11/28/2022]
Abstract
OBJECTIVES Tobacco use is among the most significant public health issues faced by the world today. It is estimated that approximately 5500 adolescents start using tobacco every day in India, adding to the four million youths aged <15 years who are already regular users. School-based smoking prevention programmes have been shown to increase knowledge about the negative effects of tobacco and prevent tobacco use, but the majority of evidence on effectiveness comes from Western countries. This study investigated the impact of a school-based short-term educational intervention regarding tobacco use on adolescents' knowledge, attitudes, intentions and behaviours (KAIB) in Bangalore, India. STUDY DESIGN An intervention trial was conducted among 720 adolescents aged 15-16 years in Bangalore, India. METHODS Educational interventions were imparted to all study subjects in a phased manner, along with two interactive sessions held six months apart. The impact of the programme was measured using questionnaires administered before the first intervention (pre-intervention) and after the second intervention (post-intervention). RESULTS Mean (±standard deviation) pre-intervention KAIB scores of the subjects were 5.9 ± 1.87 (knowledge), 23.6 ± 3.15 (attitude) and 18.9 ± 3.27 (practice), which improved to 7.8 ± 2.01, 26.7 ± 2.43 and 12.3 ± 2.52, respectively, postintervention. The differences in mean KAIB scores were significant (P < 0.0001, df = 1400), suggesting that the intervention had a major positive impact. CONCLUSION School-based short-term educational intervention programmes are effective for preventing and reducing tobacco use among Indian adolescents.
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Proietti R, Essebag V, Beardsall J, Hache P, Pantano A, Wulffhart Z, Juta R, Tsang B, Joza J, Nascimento T, Pegoraro V, Khaykin Y, Verma A. Substrate-guided ablation of haemodynamically tolerated and untolerated ventricular tachycardia in patients with structural heart disease: effect of cardiomyopathy type and acute success on long-term outcome. Europace 2014; 17:461-7. [DOI: 10.1093/europace/euu326] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Verma A, Bajpai M, Baidya DK. Lumbotomy approach for upper urinary tract surgeries in adolescents: feasibility and challenges. J Pediatr Urol 2014; 10:1122-5. [PMID: 24947345 DOI: 10.1016/j.jpurol.2014.05.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Accepted: 05/12/2014] [Indexed: 11/17/2022]
Abstract
OBJECTIVE The objective of this study was to assess the feasibility and challenges in a lumbotomy approach for performing upper urinary tract surgeries in adolescent children. MATERIAL AND METHODS Fifty-five adolescent children underwent various upper urinary tract surgeries from 2000 to 2012. In all patients, the kidneys and ureters were approached via a lumbotomy incision. The patients' characteristics were analysed from the hospital charts. Intraoperative and postoperative details were gathered from individual case files. Data were collected regarding: age, weight, gender, diagnosis, surgical procedure, anaesthetic details, any intraoperative problems encountered, postoperative pain, time to oral feed, length of hospitalisation and any complications. RESULTS The median age at surgery was 14 years (range 10-19). There were 42 boys and 13 girls. Median weight was 41 kg (range 28-52 kg). Surgeries performed were pyeloplasty, pyelolithotomy, nephroureterectomy and heminephrectomy. Mean duration of surgery was 80 min (range 60-130 min) with no special anaesthetic requirements. No intraoperative problems were encountered. In all patients, postoperative stay was uneventful with minimal analgesic requirements and oral feeding was started the very next day. There were no incision-related complications. CONCLUSIONS A lumbotomy incision is technically easy and safe, even in adolescent children, as an approach for upper urinary-tract surgeries.
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Selvan AS, Gupta ID, Verma A, Chaudhari MV, Kumar V. Cluster of differentiation 14 gene polymorphism and its association with incidence of clinical mastitis in Karan fries cattle. Vet World 2014. [DOI: 10.14202/vetworld.2014.1037-1040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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Mishra N, Rajukumar K, Pateriya A, Kumar M, Dubey P, Behera S, Verma A, Bhardwaj P, Kulkarni D, Vijaykrishna D, Reddy N. Identification and molecular characterization of novel and divergent HoBi-like pestiviruses from naturally infected cattle in India. Vet Microbiol 2014; 174:239-46. [DOI: 10.1016/j.vetmic.2014.09.017] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 09/18/2014] [Accepted: 09/19/2014] [Indexed: 10/24/2022]
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Merali N, Verma A, Davies T. An innovative repair for a re-recurrence of an incarcerated inguinal hernia. Ann R Coll Surg Engl 2014; 96:e18-9. [PMID: 25350170 DOI: 10.1308/003588414x13946184903081] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
A patient presented with a recurrent incarcerated inguinoscrotal hernia requiring urgent surgery. The defect was through the gap in the mesh left originally for the cord structures. As a result, a modified funnel repair was performed. An innovative approach was adopted that was best suited to tackling and reducing the risk of recurrence.
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Tziotzios C, Petrof G, Liu L, Verma A, Wedgeworth EK, Mellerio JE, McGrath JA. Clinical features and WNT10A mutations in seven unrelated cases of Schöpf-Schulz-Passarge syndrome. Br J Dermatol 2014; 171:1211-4. [PMID: 24902757 DOI: 10.1111/bjd.13158] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/25/2014] [Indexed: 11/29/2022]
Abstract
BACKGROUND Schöpf-Schulz-Passarge syndrome (SSPS) is an autosomal recessive form of ectodermal dysplasia resulting from mutations in WNT10A. OBJECTIVES To document the spectrum of clinical features and search for pathogenic mutations in seven unrelated cases of SSPS. METHODS Clinical examination of patients and Sanger sequencing of genomic DNA spanning the coding exons and flanking spice sites of WNT10A. RESULTS Most subjects had bilateral eyelid cysts and some degree of palmoplantar keratoderma, although nail, hair, and teeth abnormalities were variably present. Bi-allelic pathogenic mutations in WNT10A were found in all seven subjects. New mutations comprised p.Glu390*, p.Ser270Arg, and p.Cys362Arg; the recurrent mutations were p.Cys107* and p.Ala131Thr. CONCLUSIONS This study reveals the range of ectodermal pathology in cases of SSPS that result from WNT10A mutations. Eyelid cysts provide a useful clinical clue to diagnosing SSPS which may be less rare than is currently appreciated.
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Verma A, van Ameijden E, Birt C, Pope D. EURO-URHIS 2: Indicators for Urban Environmental Health. Eur J Public Health 2014. [DOI: 10.1093/eurpub/cku165.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Bhartiya S, Verma A, Basu S, Shukla V. Congenital thyroid hemiagenesis with multinodular goiter. Acta Radiol Short Rep 2014; 3:2047981614530286. [PMID: 25379177 PMCID: PMC4221940 DOI: 10.1177/2047981614530286] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Accepted: 02/19/2014] [Indexed: 12/05/2022] Open
Abstract
Thyroid hemiagenesis is a rare form of thyroid dysgenesis characterized by an absence of half of the thyroid gland. Developmental hemi-thyroid anomalies can result from either an abnormal descent or an agenesis of one lobe of the thyroid gland. We report a case of a 40-year-old woman with history of a longstanding gradually progressive thyroid swelling without any complication. An ultrasonographic examination diagnosed the absence of the left thyroid lobe and enlargement of the right lobe, which was confirmed on a computed tomography (CT) angiogram and a radionuclide scan of the neck. A cytological examination showed nodular goiter with cystic degeneration. Right subtotal thyroidectomy was performed and histopathological examination confirmed adenomatous goiter with degenerative changes. We report the rarity of the condition and emphasize the role of a comprehensive radiological, cytological, and radionuclide algorithm for an accurate preoperative diagnosis and subsequent management.
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Verma A, Prakash NT, Toor AP. An efficient TiO2 coated immobilized system for the degradation studies of herbicide isoproturon: durability studies. CHEMOSPHERE 2014; 109:7-13. [PMID: 24873700 DOI: 10.1016/j.chemosphere.2014.02.051] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 02/18/2014] [Accepted: 02/20/2014] [Indexed: 06/03/2023]
Abstract
The investigation presents the observations on the use of cement beads for the immobilization of TiO2 for the degradation of herbicide isoproturon. The immobilized system was effective in degrading and mineralizing the herbicide for continuous thirty cycles without losing its durability. Catalyst was characterized by SEM-EDAX for checking the durability of the catalyst. The degradation rate followed first order kinetics as measured by change in absorption intensity in UV range as well as HPLC analysis. Two rounds of TiO2 coating on inert cement beads with average diameter 1.5cm at UV Intensity 25Wm(-2) calcined at 400°C were the optimized conditions for the degradation of herbicide isoproturon. More than 90% TOC and COD reduction along with ammonium ions generation (80%) confirmed the mineralization of isoproturon. Fixed bed baffled reactor studies under solar irradiations using the TiO2 immobilized beads confirmed 85% degradation after 6h. LC-MS studies confirmed the intermediates formation and their subsequent degradation using immobilized system.
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Verma A, Rashidghamat E, Martinez A, Fassihi H, Sarkany R. Congenital erythropoietic porphyria: a case in which symptoms were precipitated by an unrelated anaemia. Br J Dermatol 2014; 171:422-3. [DOI: 10.1111/bjd.12945] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Kansal S, Tandon R, Verma A, Misra P, Choudhary AK, Verma R, Verma PRP, Dube A, Mishra PR. Coating doxorubicin-loaded nanocapsules with alginate enhances therapeutic efficacy against Leishmania in hamsters by inducing Th1-type immune responses. Br J Pharmacol 2014; 171:4038-50. [PMID: 24837879 DOI: 10.1111/bph.12754] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 04/09/2014] [Accepted: 04/23/2014] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND AND PURPOSE The aim of the present study was to evaluate the immunomodulatory and chemotherapeutic potential of alginate-(SA) coated nanocapsule (NCs) loaded with doxorubicin (SA-NCs-DOX) against visceral leishmaniasis in comparison with nano-emulsions containing doxorubicin (NE-DOX). EXPERIMENTAL APPROACH NE-DOX was prepared using low-energy emulsification methods. Stepwise addition of protamine sulphate and SA in a layer-by-layer manner was used to form SA-NCs-DOX. SA-NCs-DOX, NE-DOX and Free DOX were compared for their cytotoxicity against Leishmania donovani-infected macrophages in vitro and generation of T-cell responses in infected hamsters in vivo. KEY RESULTS Size and ζ potential of the NE-DOX and SA-NCs-DOX formulations were 310 ± 2.1 nm and (-)32.6 ± 2.1 mV, 342 ± 4.1 nm and (-)29.3 ± 1.2 mV respectively. SA-NCs-DOX was better (1.5 times) taken up by J774A.1 macrophages compared with NE-DOX. SA-NCs -DOX showed greater efficacy than NE-DOX against intramacrophagic amastigotes. SA-NCs-DOX treatment exhibited enhanced apoptotic efficiency than NE-DOX and free DOX as evident by cell cycle analysis, decrease in mitochondrial membrane potential, ROS and NO production. T-cell responses, when assessed through lymphoproliferative responses, NO production along with enhanced levels of iNOS, TNF-α, IFN-γ and IL-12 were found to be up-regulated after SA-NCs-DOX, compared with responses to NE-DOX in vivo. Parasitic burden was decreased in Leishmania-infected hamsters treated with SA-NCs-DOX, compared with NE-DOX. CONCLUSIONS AND IMPLICATIONS Our results provide insights into the development of an alternative approach to improved management of leishmaniasis through a combination of chemotherapy with stimulation of the innate immune system.
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Yadav S, Verma A, Sachdeva A. Assessment of lingual nerve injury using different surgical variables for mandibular third molar surgery: a clinical study. Int J Oral Maxillofac Surg 2014; 43:889-93. [DOI: 10.1016/j.ijom.2014.01.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Revised: 10/03/2013] [Accepted: 01/27/2014] [Indexed: 10/25/2022]
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Murrell J, Kehoe D, Aysola M, Jing D, Punreddy S, Verma A, Mann K, Lawson T, Rook M. Single use expansion and harvest of adult stem cells supports large scale manufacturing. Cytotherapy 2014. [DOI: 10.1016/j.jcyt.2014.01.270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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170
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Rosenkotter N, Brand H, McKee M, Riley N, Verma A, Verschuuren M. The realisation of a European health information system--time to get the politicians involved. Eur J Public Health 2014; 24:184-5. [DOI: 10.1093/eurpub/cku012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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171
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Jain M, Tripathi R, Jain S, Verma A, Bajpai N. Spontaneous Rupture of Bicornuate Uterus Caused by Levorotation Due to Congenital Band. NEPAL JOURNAL OF OBSTETRICS AND GYNAECOLOGY 2014. [DOI: 10.3126/njog.v8i2.9773] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Rupture of gravid uterus due to torsion is a rare obstetric complication. The uterus has little mobility and is firmly held in place by its supports which resist any tendency of torsion. We are reporting a case of bicornuate uterus with rupture of left horn due to inability of malformed uterus to expand and axial torsion around one of its horns held by congenital band. Band was dissected and ruptured left horn excised, hemostasis was secured leaving the nonruptured nongravid horn of uterus intact.Nepal Journal of Obstetrics and Gynaecology / Vol 8 / No. 2 / Issue 16 / July-Dec, 2013 / 57-59 DOI: http://dx.doi.org/10.3126/njog.v8i2.9773
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Elias HK, Schinke C, Bhattacharyya S, Will B, Verma A, Steidl U. Stem cell origin of myelodysplastic syndromes. Oncogene 2013; 33:5139-50. [PMID: 24336326 DOI: 10.1038/onc.2013.520] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Revised: 10/17/2013] [Accepted: 10/17/2013] [Indexed: 01/18/2023]
Abstract
Myelodysplastic syndromes (MDS) are common hematologic disorders that are characterized by decreased blood counts due to ineffective hematopoiesis. MDS is considered a 'preleukemic' disorder linked to a significantly elevated risk of developing an overt acute leukemia. Cytopenias can be observed in all three myeloid lineages suggesting the involvement of multipotent, immature hematopoietic cells in the pathophysiology of this disease. Recent studies using murine models of MDS as well as primary patient-derived bone marrow samples have provided direct evidence that the most immature, self-renewing hematopoietic stem cells (HSC), as well as lineage-committed progenitor cells, are critically altered in patients with MDS. Besides significant changes in the number and distribution of stem as well as immature progenitor cells, genetic and epigenetic aberrations have been identified, which confer functional changes to these aberrant stem cells, impairing their ability to proliferate and differentiate. Most importantly, aberrant stem cells can persist and further expand after treatment, even upon transient achievement of clinical complete remission, pointing to a critical role of these cells in disease relapse. Ongoing preclinical and clinical studies are particularly focusing on the precise molecular and functional characterization of aberrant MDS stem cells in response to therapy, with the goal to develop stem cell-targeted strategies for therapy and disease monitoring that will allow for achievement of longer-lasting remissions in MDS.
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Aeshala L, Uppaluri R, Verma A. Effect of cationic and anionic solid polymer electrolyte on direct electrochemical reduction of gaseous CO2 to fuel. J CO2 UTIL 2013. [DOI: 10.1016/j.jcou.2013.09.004] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Efstathiou A, Pearson C, Farrah D, Rigopoulou D, Gracia-Carpio J, Verma A, Spoon HWW, Afonso J, Bernard-Salas J, Clements DL, Cooray A, Cormier D, Etxaluze M, Fischer J, Gonzalez-Alfonso E, Hurley P, Lebouteiller V, Oliver SJ, Rowan-Robinson M, Sturm E. Herschel observations and a model for IRAS 08572+3915: a candidate for the most luminous infrared galaxy in the local (z < 0.2) Universe. ACTA ACUST UNITED AC 2013. [DOI: 10.1093/mnrasl/slt131] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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175
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Panda A, Kurapati S, Samantaray JC, Myneedu VP, Verma A, Srinivasan A, Ahmad H, Behera D, Singh UB. Rapid identification of clinical mycobacterial isolates by protein profiling using matrix assisted laser desorption ionization-time of flight mass spectrometry. Indian J Med Microbiol 2013; 31:117-22. [PMID: 23867666 DOI: 10.4103/0255-0857.115217] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
PURPOSE The purpose of this study was to evaluate the identification of Mycobacterium tuberculosis which is often plagued with ambiguity. It is a time consuming process requiring 4-8 weeks after culture positivity, thereby delaying therapeutic intervention. For a successful treatment and disease management, timely diagnosis is imperative. We evaluated a rapid, proteomic based technique for identification of clinical mycobacterial isolates by protein profiling using matrix assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS). MATERIALS AND METHODS Freshly grown mycobacterial isolates were used. Acetonitrile/trifluoroacetic acid extraction procedure was carried out, following which cinnamic acid charged plates were subjected to identification by MALDI-TOF MS. RESULTS A comparative analysis of 42 clinical mycobacterial isolates using the MALDI-TOF MS and conventional techniques was carried out. Among these, 97.61% were found to corroborate with the standard methods at genus level and 85.36% were accurate till the species level. One out of 42 was not in accord with the conventional assays because MALDI-TOF MS established it as Mycobacterium tuberculosis (log (score)>2.0) and conventional methods established it to be non-tuberculous Mycobacterium. CONCLUSIONS MALDI-TOF MS was found to be an accurate, rapid, cost effective and robust system for identification of mycobacterial species. This innovative approach holds promise for early therapeutic intervention leading to better patient care.
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Bami K, Nielsen J, Alings M, Conen D, Verma A, Birnie D, Philippon F, Exner D, Connolly S, Morillo C, Healey J. Current Use of Oral Anticoagulants Therapy in Pacemaker Patients With Pacemaker-Detected Atrial Fibrillation: Results From a Four-Nation Physician Survey. Can J Cardiol 2013. [DOI: 10.1016/j.cjca.2013.07.306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Shurrab M, Fishman E, Kaoutskaia A, Birnie D, Ayala-Paredes F, Sultan O, Chauhan V, Skanes A, Parkash R, Morillo C, Janmohamed A, Toal S, Essebag V, Sterns L, Veenhuyzen G, Mangat I, Redfearn D, Verma A, Crystal E. Snapshot of Invasive Electrophysiology in Canada in 2012: Results From the National Survey. Can J Cardiol 2013. [DOI: 10.1016/j.cjca.2013.07.299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Verma A, van Ameijden E, Birt C, Pope D. Why consider the urban perspective for a European Health Information System? Eur J Public Health 2013. [DOI: 10.1093/eurpub/ckt126.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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179
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Verma A, Perumalsamy V, Shetty S, Kulm M, Sundaresan P. Mutational screening of LCA genes emphasizing RPE65 in South Indian cohort of patients. PLoS One 2013; 8:e73172. [PMID: 24066033 PMCID: PMC3774716 DOI: 10.1371/journal.pone.0073172] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Accepted: 07/19/2013] [Indexed: 11/23/2022] Open
Abstract
Background Leber congenital amaurosis (LCA) is the most severe form of inherited retinal visual impairment in children. So far, mutations in more than 20 genes have been known to cause LCA and among them, RPE65 is a suitable candidate for gene therapy. The mutational screenings of RPE65 and other LCA genes are requisite in support of emerging gene specific therapy for LCA. Therefore, we have carried out a comprehensive LCA genes screening using a combined approach of direct sequencing and DNA microarray based Asper chip analysis. Methodology/Principal Findings Thirty clinically diagnosed index LCA cases from Southern India were screened for coding and flanking intronic regions of RPE65 through direct sequencing. Among thirty, 25 cases excluded from RPE65 mutations were subjected to Asper chip analysis, testing 784 known pathogenic variations in 15 major LCA genes. In RPE65 screening, four different pathogenic variations including two novel (c.361insT & c.939T>A) and two known (c.394G>A & c.361delT) mutations were identified in five index cases. In the chip analysis, seven known pathogenic mutations were identified in six index cases, involving genes GUCY2D, RPGRIP1, AIPL1, CRX and IQCB1. Overall, 11 out of 30 LCA cases (36.6%) revealed pathogenic variations with the involvement of RPE65 (16.6%), GUCY2D (10%), RPGRIP1 (3.3%), AIPL1 (3.3%) and CRX & IQCB1 (3.3%). Conclusions/Significance Our study suggests that such combined screening approach is productive and cost-effective for mutation detection and can be applied in Indian LCA cohort for molecular diagnosis and genetic counselling.
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Verma A, Stevenson B. Leptospiral uveitis - there is more to it than meets the eye! Zoonoses Public Health 2013; 59 Suppl 2:132-41. [PMID: 22958257 DOI: 10.1111/j.1863-2378.2011.01445.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Leptospirosis, caused by pathogenic species of genus Leptospira, is a highly prevalent zoonotic disease throughout many parts of the world, and an important emerging disease within the United States. Uveitis is a common complication of systemic infection in humans. A similar condition in horses is characterized by recurrent bouts of inflammation. In this article, we review advances in our understanding of leptospiral uveitis and its pathogenic mechanisms.
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Abdullah A, Omar AN, Mulcahy R, Clapp A, Tullo E, Carrick-Sen D, Newton J, Hirst B, Krishnaswami V, Foster A, Vahidassr D, Chavan T, Matthew A, Trolan CP, Steel C, Ellis G, Ahearn DJ, Lotha K, Shukla P, Bourne DR, Mathur A, Musarrat K, Patel A, Nicholson G, Nelson E, McNicholl S, McKee H, Cuthbertson J, Nelson E, Nicholson G, McNicholl S, McKee H, Cuthbertson J, Lunt E, Lee S, Okeke J, Daniel J, Naseem A, Ramakrishna S, Singh I, Barker JR, Weatherburn AJ, Thornton L, Daniel J, Okeke J, Holly C, Jones J, Varanasi A, Verma A, Singh I, Foster JAH, Carmichael C, Cawston C, Homewood S, Leitch M, Martin J, McDicken J, Lonnen J, Bishop-Miller J, Beishon LC, Harrison JK, Conroy SP, Gladman JRF, Sim J, Byrne F, Currie J, Ollman S, Brown S, Wilkinson M, Manoj A, Hussain F, Druhan A, Thompson M, Tsang J, Soh J, Offiah C, Coughlan T, O'Brien P, McCabe DJH, Murphy S, McManus J, O'Neill D, Collins DR, Warburton K, Maini N, Cunnington AL, Mathew P, Hoyles K, Lythgoe M, Brewer H, Western-Price J, Colquhoun K, Ramdoo K, Bowen J, Dale OT, Corbridge R, Chatterjee A, Gosney MA, Richardson L, Daunt L, Ali A, Harwood R, Beveridge LA, Harper J, Williamson LD, Bowen JST, Gosney MA, Wentworth L, Wardle K, Ruddlesdin J, Baht S, Roberts N, Corrado O, Morell J, Baker P, Whiller N, Wilkinson I, Barber M, Maclean A, Frieslick J, Reoch A, Thompson M, Tsang J, McSorley A, Crawford A, Sarup S, Niruban A, Edwards JD, Bailey SJ, May HM, Mathieson P, Jones H, Ray R, Prettyman R, Gibson R, Heaney A, Hull K, Manku B, Bellary S, Ninan S, Chhokar G, Sweeney D, Nivatongs W, Wong SY, Aung T, Kalsi T, Babic-Illman G, Harari D, Aljaizani M, Pattison AT, Pattison AT, Aljaizani M, Fox J, Reilly S, Chauhan V, Azad M, Youde J, Lagan J, Cooper H, Komrower D, Price V, von Stempel CB, Gilbert B, Bouwmeester N, Jones HW, Win T, Weekes C, Hodgkinson R, Walker S, Le Ball K, Muir ZN. Clinical effectiveness. Age Ageing 2013. [DOI: 10.1093/ageing/aft096] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Khedgikar V, Kushwaha P, Gautam J, Verma A, Changkija B, Kumar A, Sharma S, Nagar GK, Singh D, Trivedi PK, Sangwan NS, Mishra PR, Trivedi R. Withaferin A: a proteasomal inhibitor promotes healing after injury and exerts anabolic effect on osteoporotic bone. Cell Death Dis 2013; 4:e778. [PMID: 23969857 PMCID: PMC3763455 DOI: 10.1038/cddis.2013.294] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Revised: 05/16/2013] [Accepted: 05/29/2013] [Indexed: 11/27/2022]
Abstract
Withania somnifera or Ashwagandha is a medicinal herb of Ayurveda. Though the extract and purified molecules, withanolides, from this plant have been shown to have different pharmacological activities, their effect on bone formation has not been studied. Here, we show that one of the withanolide, withaferin A (WFA) acts as a proteasomal inhibitor (PI) and binds to specific catalytic β subunit of the 20S proteasome. It exerts positive effect on osteoblast by increasing osteoblast proliferation and differentiation. WFA increased expression of osteoblast-specific transcription factor and mineralizing genes, promoted osteoblast survival and suppressed inflammatory cytokines. In osteoclast, WFA treatment decreased osteoclast number directly by decreasing expression of tartarate-resistant acid phosphatase and receptor activator of nuclear factor kappa-B (RANK) and indirectly by decreasing osteoprotegrin/RANK ligand ratio. Our data show that in vitro treatment of WFA to calvarial osteoblast cells decreased expression of E3 ubiquitin ligase, Smad ubiquitin regulatory factor 2 (Smurf2), preventing degradation of Runt-related transcription factor 2 (RunX2) and relevant Smad proteins, which are phosphorylated by bone morphogenetic protein 2. Increased Smurf2 expression due to exogenous treatment of tumor necrosis factor α (TNFα) to primary osteoblast cells was decreased by WFA treatment. This was corroborated by using small interfering RNA against Smurf2. Further, WFA also blocked nuclear factor kappa-B (NF-kB) signaling as assessed by tumor necrosis factor stimulated nuclear translocation of p65-subunit of NF-kB. Overall data show that in vitro proteasome inhibition by WFA simultaneously promoted osteoblastogenesis by stabilizing RunX2 and suppressed osteoclast differentiation, by inhibiting osteoclastogenesis. Oral administration of WFA to osteopenic ovariectomized mice increased osteoprogenitor cells in the bone marrow and increased expression of osteogenic genes. WFA supplementation improved trabecular micro-architecture of the long bones, increased biomechanical strength parameters of the vertebra and femur, decreased bone turnover markers (osteocalcin and TNFα) and expression of skeletal osteoclastogenic genes. It also increased new bone formation and expression of osteogenic genes in the femur bone as compared with vehicle groups (Sham) and ovariectomy (OVx), Bortezomib (known PI), injectible parathyroid hormone and alendronate (FDA approved drugs). WFA promoted the process of cortical bone regeneration at drill-holes site in the femur mid-diaphysis region and cortical gap was bridged with woven bone within 11 days of both estrogen sufficient and deficient (ovariectomized, Ovx) mice. Together our data suggest that WFA stimulates bone formation by abrogating proteasomal machinery and provides knowledge base for its clinical evaluation as a bone anabolic agent.
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Duvesh R, Verma A, Venkatesh R, Kavitha S, Ramulu PY, Wojciechowski R, Sundaresan P. Association study in a South Indian population supports rs1015213 as a risk factor for primary angle closure. Invest Ophthalmol Vis Sci 2013; 54:5624-8. [PMID: 23847314 DOI: 10.1167/iovs.13-12186] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
PURPOSE Three loci defined by single nucleotide polymorphisms (SNPs) rs11024102 in PLEKHA7, rs3753841 in COL11A1, and rs1015213 between the PCMTD1 and ST18 genes, recently have been associated with primary angle closure glaucoma (PACG). We explored the genetic association of these SNPs with subtypes of primary angle closure in a South Indian population. METHODS The study included three case definitions: primary angle closure/primary angle closure glaucoma (PAC/PACG, N = 180); primary angle closure suspect (PACS, N = 171), and a combined any-angle closure group. Controls consisted of 411 individuals from South India. Genotyping for all three SNPs was performed using the TaqMan allelic discrimination assay. Genetic association was estimated using a χ(2) test statistics and logistic regression. RESULTS Among the three studied SNPs, significant genetic association was identified for rs1015213 in the PAC/PACG (P = 0.002) and any-angle closure (P = 0.003) analyses. However, no significant genetic association was seen when in PACS subjects (P = 0.052). SNPs rs3753841 and rs11024102 showed no evidence of genetic association with angle-closure phenotypes (P > 0.05) in South Indian participants. CONCLUSIONS In our study, rs1015213 (located in the intergenic region between PCMTD1 and ST18) was associated significantly with PAC/PACG, confirming prior reports of an association between this region and angle closure glaucoma. Further work with a larger sample size is necessary to confirm the importance of COL11A1 and PLEKHA7 in the pathogenesis of glaucoma.
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Kumar S, Thomas A, Sahgal A, Verma A, Samuel T, Pillai MKK. Variations in the insecticide-resistance spectrum ofAnopheles stephensiafter selection with deltamethrin or a deltamethrin–piperonyl-butoxide combination. ANNALS OF TROPICAL MEDICINE AND PARASITOLOGY 2013; 98:861-71. [PMID: 15667718 DOI: 10.1179/000349804x3180] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
When the larvae of Anopheles stephensi, a malaria vector, were selected with deltamethrin for 40 successive generations, there was a 60-fold increase in larval resistance to deltamethrin but no increase in the resistance of the adult mosquitoes. This result, and the observation that deltamethrin selection of adults for 40 generations resulted in only a six-fold increase in adult resistance to deltamethrin, indicated some stage specificity. When F(24) deltamethrin-resistant larvae were selected with 1:5 deltamethrin-piperonyl butoxide (deltamethrin-PBO), instead of deltamethrin alone, for 16 generations, the level of resistance to deltamethrin in the F(40) larvae was reduced by 6%-21%. Similarly, selection with deltamethrin-PBO of adults of the parental strain for 20 generations reduced the speed of the development of resistance to deltamethrin, compared with that seen using selection with deltamethrin alone. Deltamethrin selection appears to select initially a monooxygenase-based mechanism. When the monooxygenase-based mechanism is blocked, by treatment with PBO, selection of a kdr-type mechanism is accelerated, as is evident from increased cross-resistance to 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane (DDT) in the adults selected with deltamethrin-PBO. The implications of these results are discussed in terms of the management of the larval and adult stages of An. stephensi .
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Das MK, Joshi H, Verma A, Singh SS, Adak T. Malaria among the Jarawas, a primitive and isolated tribe on the Andaman islands, India. ANNALS OF TROPICAL MEDICINE AND PARASITOLOGY 2013; 99:545-52. [PMID: 16156967 DOI: 10.1179/136485905x51418] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The Jarawas are a primitive Negrito tribe of the Andaman islands, India. The members of this tribe have been geographically and socially isolated from the other inhabitants of the islands. None had attended a hospital or health unit until 1997, when a Jarawa boy with a fractured leg was taken to a hospital in Port Blair, and successfully treated. Since then, increasing numbers of Jarawas have sought treatment at the hospital and/or begun to make other contact with non-Jarawas on the islands. No malaria had ever been reported in the tribe until 2001, when an outbreak of febrile illness triggered a malariological survey. Malarial parasites, all identified microscopically as Plasmodium falciparum, were detected in the bloodsmears of 30 of the 179 Jarawas investigated. Although most malaria among the non-Jarawa inhabitants of the islands is caused by P. vivax, only P. falciparum was detected when blood samples from 26 of the subjects were investigated in PCR-based assays. Genetic-diversity studies, based on the msp(1) and msp(2) polymorphic markers, also revealed a relatively low level of polymorphism in the P. falciparum parasites infecting the Jarawas, compared with that seen in other areas of India. It seems possible that malarial parasites have only recently reached the Jarawas, as the result of the weakening of the tribe's isolation from other humans on the Andaman islands.
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Deshpande K, Mehra U, Singh P, Ingale S, Verma A, George S. Urinary excretion of purine derivatives as influenced by GFR and plasma retention of purines in cattle ( Bos indicus × Bos taurus) and buffalo ( Bubalus bubalis) bulls. JOURNAL OF ANIMAL AND FEED SCIENCES 2013. [DOI: 10.22358/jafs/65998/2013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Krotneva SP, Reidel KE, Verma A, Mayo N, Tamblyn R, Meguerditchian AN. Factors influencing the quality of local management of ductal carcinoma in situ: a cohort study. Curr Oncol 2013; 20:e212-22. [PMID: 23737691 DOI: 10.3747/co.20.1293] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Guidelines recommend radiotherapy (rt) after breast-conserving surgery (bcs) for optimal control of ductal carcinoma in situ (dcis). The aim of the present study was to characterize the rates of rt consideration and administration, and to identify factors influencing those rates in a cohort of women diagnosed between 1998 and 2005 in Quebec. METHODS Quebec's medical service claims and discharge abstract database were used. Using consultation for rt as an indicator for rt consideration, odds ratios (ors) and 95% confidence intervals (cis) were estimated using a generalized estimating equations regression model. RESULTS Of 4139 women analyzed (mean age: 58 years), 3435 (83%) received a consultation for rt, and 3057 of them (89%) proceeded with treatment. The rate of rt consideration increased by 7.1% over the study period, with notable differences in the various age groups. Relative to women 50-69 years of age, the ors for being considered for rt were, respectively, 0.89 (95% ci: 0.71 to 1.12), 0.71 (95% ci: 0.55 to 0.92), and 0.20 (95% ci: 0.14 to 0.31) for women younger than 50, 70-79, and 80 years of age and older. Distance to a designated breast care centre lowered the probability of rt consideration, but the presence of comorbidities did not. A surgeon's volume of bcss increased the probability of being considered for rt by 7% for every 10 such procedures performed (or: 1.07; 95% ci: 1.04 to 1.11). CONCLUSIONS Consideration for rt has increased over time. However, older women (despite being in good health) and those living far from a designated breast care centre or having a low-case-volume surgeon were less likely to be considered for rt.
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McGhee DJM, Royle PL, Counsell CE, Abbas A, Sethi P, Manku L, Narayan A, Clegg K, Bardai A, Brown SHM, Hafeez U, Abdelhafiz AH, McGovern A, Breckenridge A, Seenan P, Samani A, Das S, Khan S, Puffett AJ, Morgan J, Ross G, Cantlay A, Khan N, Bhalla A, Sweeting M, Nimmo CAMD, Fleet J, Igbedioh C, Harari D, Downey CL, Handforth C, Stothard C, Cracknell A, Barnes C, Shaw L, Bainbridge L, Crabtree L, Clark T, Root S, Aitken E, Haroon K, Sudlow M, Hanley K, Welsh S, Hill E, Falconer A, Miller H, Martin B, Tidy E, Pendlebury S, Thompson S, Burnett E, Taylor H, Lonan J, Adler B, McCallion J, Sykes E, Bancroft R, Tullo ES, Young TJ, Clift E, Flavin B, Roberts HC, Sayer AA, Belludi G, Aithal S, Verma A, Singh I, Barne M, Wilkinson I, Sakoane R, Singh N, Wilkinson I, Cottee M, Irani TS, Martinovic O, Abdulla AJJ, Irani TS, Abdulla AJJ, Riglin J, Husk J, Lowe D, Treml J, Vasilakis JN, Buttery A, Reid J, Healy P, Grant-Casey J, Pendry K, Richards J, Singh A, Jarrett D, Hewitt J, Slevin J, Barwell G, Youde J, Kennedy C, Romero-Ortuno R, O'Shea D, Robinson D, O'Shea D, Kenny RA, O'Connell J, Kennedy C, Romero-Ortuno R, O'Shea D, Robinson D, O'Shea D, Robinson D, O'Connell J, Topp JD, Topp JD, Warburton K, Simpson L, Bryce K, Suntharalingam S, Grosser K, D'Silva A, Southern L, Bielawski C, Cook L, Sutton GM, Flanagan L, Storr A, Charlton L, Kerr S, Robinson L, Shaw F, Finch LK, Weerasuriya N, Walker M, Sahota O, Logan P, Brown F, Rossiter F, Baxter M, Mucci E, Brown A, Jackson SHD, de Savary N, Hasan S, Jones H, Birrell J, Hockley J, Hensey N, Meiring R, Athavale N, Simms J, Brown S, West A, Diem P, Simms J, Brown S, West A, Diem P, Davies R, Kings R, Coleman H, Stevens D, Campbell C, Hope S, Morris A, Ong T, Harwood R, Dasgupta D, Mitchell S, Dimmock V, Collin F, Wood E, Green V, Hendrickse-Welsh N, Singh N, Cracknell A, Eccles J, Beezer J, Garside M, Baxter J. Clinical effectiveness. Age Ageing 2013. [DOI: 10.1093/ageing/aft016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Verma A, Wanderka N, Singh JB, Kumar B, Banhart J. Statistical analysis of composition fluctuations and short-range order in stoichiometric Ni-Cr-Mo alloys. Ultramicroscopy 2013; 132:227-32. [PMID: 23588067 DOI: 10.1016/j.ultramic.2013.02.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Revised: 02/01/2013] [Accepted: 02/28/2013] [Indexed: 10/27/2022]
Abstract
In the solution treated state Ni-Cr-Mo based alloys exhibit short-range order characterized by the appearance of diffuse intensity spots in electron diffraction patterns at {1 ½ 0} positions. This short-range order appears due to of the formation of chemical heterogeneities. In the present work we report on the investigation of short-range order in Ni-33 at% Cr and Ni-16.7 at% Cr-16.7 at% Mo alloys using transmission electron microscopy. Chemical heterogeneities and their sizes are analyzed by statistical methods applied to three-dimensional atom probe data obtained on the same alloys. The obtained chemical heterogeneities are correlated to regions of short-range order in Ni-33 at% Cr and Ni-16.7 at% Cr-16.7 at% Mo alloys.
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Verma A, Das M, Srinivasan M, Prajna NV, Sundaresan P. Investigation of VSX1 sequence variants in South Indian patients with sporadic cases of keratoconus. BMC Res Notes 2013; 6:103. [PMID: 23506487 PMCID: PMC3608990 DOI: 10.1186/1756-0500-6-103] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Accepted: 01/15/2013] [Indexed: 01/17/2023] Open
Abstract
Background The involvement of VSX1 gene for the genetic basis of keratoconus is unclear and controversial. The genetic screening of VSX1 from different ethnic populations can enlighten this subject. The aim of the present study is to investigate the role of VSX1 gene in patients with sporadic cases of keratoconus from South India. Methods The VSX1 gene coding regions, including exon-intron boundaries were screened by direct sequencing analysis in 117 sporadic cases of keratoconus. The identified variations were also analyzed in 108 ethnic matched healthy blood donors. Results In the VSX1 gene screening, no pathogenic mutation was identified, whereas we could find the presence of four reported single nucleotide polymorphisms; c.546A>G (rs12480307), c.627+23G>A (rs6138482), c.627+84T>A (rs56157240) and c.504-24C>T (IVS3-24C). These variations were observed in similar frequency between cases and controls. Conclusions The lack of VSX1 pathogenic variations in a large number of unrelated sporadic keratoconus patients tend to omit its role, and corroborate the involvement of other genetic, environmental or behavioural factors in the development of this complex disorder.
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Chopra S, Dhanda S, Verma A, Engineer R, Upasani M, Kundu S, Mahantshetty U, Shrivastava S. PO-0733: Diffusion weighted magnetic resonance imaging predicts for relapse free survival in patients with vault cancers. Radiother Oncol 2013. [DOI: 10.1016/s0167-8140(15)33039-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Swamy K, Ajaikumar B, Radheshyam N, Verma A, Rao JC, Premitha R, Ramesh B, Sridhar P, Bhattacharjee S, Belliappa M. Evaluation of Immunological Changes in Patients Treated With SBRT and Radiation Therapy -- A Prospective Cohort Study. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Barh D, Gupta K, Khatri G, Rahangdale S, Verma A. 258 An Integrative Omics Strategy for Identification of Skin Cancer Biomarkers. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)72056-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Macle L, Khairy P, Weerasooriya R, Novak P, Verma A, Willems S, Arentz T, Deisenhofer I, Veenhuyzen Y, Scavee C, Nault I, Parkash R, Skanes A, Roux J, David D, Rivard L, Guerra P, Andrade J, Dubuc M, Thibault B, Talajic M, Roy D, Nattel S. 812 Complications From Catheter Ablation of AF: Insights From the Contemporary Multicenter International ADVICE Trial. Can J Cardiol 2012. [DOI: 10.1016/j.cjca.2012.07.730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Boyes C, Wozniak M, Boggs N, Shah H, Verma A, Meza J. A Nutrition Tutorial: Activity-Based Learning for Medical Trainees. J Acad Nutr Diet 2012. [DOI: 10.1016/j.jand.2012.06.189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Banerjee K, Cu Y, Sun Y, Hartog K, Dey A, Brito L, Verma A, Nandi A, Sarkar P, Valiante NM, Geall AJ, Barnett SW, Otten GR. Potency of an HIV-SAM™ vaccine in a heterologous prime-boost vaccination regimen. Retrovirology 2012. [PMCID: PMC3441396 DOI: 10.1186/1742-4690-9-s2-p312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Aeshala L, Rahman S, Verma A. Effect of solid polymer electrolyte on electrochemical reduction of CO2. Sep Purif Technol 2012. [DOI: 10.1016/j.seppur.2011.12.030] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Kumar N, Verma A, Gupta G, Dixit P, Shukla A, Prakash G, Patil K, Tawade N. Clinical and Electrical Profile of Patients with Juvenile Myoclonic Epilepsy (P07.121). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p07.121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Dulay M, Havins W, Agbayani K, Travis Seidl J, Karmonik C, Xue Z, Verma A, Kawai M, Grossman R. Brain Imaging Correlates and Executive Impairments in Individuals with Epilepsy and Comorbid Major Depression (PD3.005). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.pd3.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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LeDoux M, Lin D, Jankovic J, Pappert E, Verma A, Sethi K, Fernandez H. XCiDaBLE: A Phase 4, Observational, Prospective Trial Evaluating Xeomin (IncobotulinumtoxinA) for Cervical Dystonia or Blepharospasm in the United States - Preliminary Baseline Disease Severity and Quality of Life Data (P01.240). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p01.240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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