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Cullen J, Lawrence H, Chen Y, Lu R, Srivastava S, Rosner I, Brand T, Sesterhenn I. Prediction of prostate cancer gleason score upgrading from biopsy to radical prostatectomy (RP) using a validated 17-gene panel assay. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy284.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Srivastava S, Kumari H, Singh A, Rai R. Electrical burn injury: a comparison of outcomes of high voltage versus low voltage injury in an Indian scenario. Ann Burns Fire Disasters 2018; 31:174-177. [PMID: 30863247 PMCID: PMC6367854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 07/19/2018] [Indexed: 06/09/2023]
Abstract
Electrical burn injury (EBI) is a mutilating form of injury. The objective of this study was to evaluate the various aspects of EBI and analyse the differences between high voltage injury (HVI) and low voltage injury (LVI). A retrospective study was conducted by reviewing the medical records of all burn admissions from June 2016 to May 2017. A total of 1572 patients were admitted, of which 385 (24.49%) had suffered an electrical injury. 104 (27.01%) patients sustained LVI and 281 (72.98%) HVI. One hundred patients from both groups were randomly selected using the chit method, in order to analyse their differences. In our study, the mean age was 35.23±19.96 in the HVI group and 24.15±14.39 years in the LVI group. Most of the injuries were work related. Events during the early phase of admission included a rise in serum creatine phosphokinases, myoglobinuria, renal failure, abnormal cardiac events and other concomitant injuries in the HVI group (p<0.001). Unfavourable outcomes in the form of amputations, prolonged hospital stay and high mortality rate were observed in the HVI group (8.5%) (p<0.027). However, LVI cannot be overlooked as number of reconstructive surgeries and mean number of operations showed no significant difference between both groups. HVI has a disastrous impact on burn survivors but LVI cannot be underestimated. We advocate a low threshold for managing associated injuries, education on safety principles, for men at work especially, and infrastructure improvement by the state to bring changes to the present scenario.
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Affiliation(s)
- S. Srivastava
- Department of Plastic Surgery, Sawai Man Singh Medical College and Hospital, Rajasthan, India
| | - H. Kumari
- University of Health Sciences, Jaipur, India
| | - A. Singh
- University of Health Sciences, Jaipur, India
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Kumar V, Srivastava S, Chauhan R, Singh J, Kumar P. Contamination, enrichment and translocation of heavy metals in certain leafy vegetables grown in composite effluent irrigated soil. ACTA ACUST UNITED AC 2018. [DOI: 10.26832/24566632.2018.030307] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Das S, Rai G, Tigga RA, Srivastava S, Singh PK, Sharma R, Datt S, Singh NP, Dar SA. Candida auris in critically ill patients: Emerging threat in intensive care unit of hospitals. J Mycol Med 2018; 28:514-518. [PMID: 30042047 DOI: 10.1016/j.mycmed.2018.06.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 05/12/2018] [Accepted: 06/19/2018] [Indexed: 01/05/2023]
Abstract
Candida auris has emerged as the multi-drug resistant non-albican candida species in critically ill patients admitted to intensive care units (ICU) causing bloodstream and other infections. It has often been misidentified as Candida famata, Candida sake, Rhodotorula glutinis, or Saccharomyces cerevisiae and Candida haemulonii by automated identification systems. We, in this study, discuss three patients who acquired Candida auris infection after 15 to 20days of their stay in medical ICU. Medical equipment, use of multiple antibiotics, and poor hand hygiene are the most probable predisposing factors attributing to its colonization at multiple anatomical sites leading to bloodstream infection. Candida auris might substantially contaminate the environment of colonized or infected patients making its eradication difficult. Patient screening for Candida auris, especially during prolonged ICU stays, along with strict infection prevention and control strategies needs to be adopted to break its persistence.
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Affiliation(s)
- S Das
- Department of Microbiology, University College of Medical Sciences (University of Delhi) and Guru Teg Bahadur Hospital, 110095 Delhi, India.
| | - G Rai
- Department of Microbiology, University College of Medical Sciences (University of Delhi) and Guru Teg Bahadur Hospital, 110095 Delhi, India
| | - R A Tigga
- Department of Microbiology, University College of Medical Sciences (University of Delhi) and Guru Teg Bahadur Hospital, 110095 Delhi, India
| | - S Srivastava
- Department of Microbiology, University College of Medical Sciences (University of Delhi) and Guru Teg Bahadur Hospital, 110095 Delhi, India
| | - P K Singh
- Department of Microbiology, University College of Medical Sciences (University of Delhi) and Guru Teg Bahadur Hospital, 110095 Delhi, India
| | - R Sharma
- Undergraduate student (Semester IX), University College of Medical Sciences (University of Delhi) and Guru Teg Bahadur Hospital, 110095 Delhi, India
| | - S Datt
- Department of Microbiology, University College of Medical Sciences (University of Delhi) and Guru Teg Bahadur Hospital, 110095 Delhi, India
| | - N P Singh
- Department of Microbiology, University College of Medical Sciences (University of Delhi) and Guru Teg Bahadur Hospital, 110095 Delhi, India
| | - S A Dar
- Department of Microbiology, University College of Medical Sciences (University of Delhi) and Guru Teg Bahadur Hospital, 110095 Delhi, India; Research and Scientific Studies Unit, College of Nursing & Allied Health Sciences, Jazan University, 45142 Jazan, Saudi Arabia
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Musa G, Srivastava S, Engel FB. P451The endocardial expression of ADGRG6 (Gpr126) is necessary for survival in mouse and sufficient to drive trabeculation in zebrafish. Cardiovasc Res 2018. [DOI: 10.1093/cvr/cvy060.311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- G Musa
- University Hospital Erlangen, Nephropathology, Erlangen, Germany
| | - S Srivastava
- University Hospital Erlangen, Nephropathology, Erlangen, Germany
| | - F B Engel
- University Hospital Erlangen, Nephropathology, Erlangen, Germany
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Das CJ, Soneja M, Tayal S, Chahal A, Srivastava S, Kumar A, Baruah U. Role of radiological imaging and interventions in management of Budd-Chiari syndrome. Clin Radiol 2018; 73:610-624. [PMID: 29549997 DOI: 10.1016/j.crad.2018.02.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 02/08/2018] [Indexed: 02/06/2023]
Abstract
Budd-Chiari syndrome (BCS) is a clinical condition resulting from impaired hepatic venous drainage, in which there is obstruction to the hepatic venous outflow at any level from the small hepatic veins to the junction of the inferior vena cava and the right atrium leading to hepatic congestion. The diagnosis of BCS is based on imaging, which can be gathered from non-invasive investigations such as ultrasonography coupled with venous Doppler, triphasic computed tomography (CT) and magnetic resonance imaging (MRI). Apart from diagnosis, various interventional radiology procedures aid in the successful management of this syndrome. In this article, we present various imaging features of BCS along with various interventional procedures that are used to treat this diverse condition.
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Affiliation(s)
- C J Das
- Department of Radiology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi - 110029, India.
| | - M Soneja
- Department of Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi - 110029, India
| | - S Tayal
- Department of Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi - 110029, India
| | - A Chahal
- Department of Radiology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi - 110029, India
| | - S Srivastava
- Department of Gastroenterology, GB Pant Hospital, New Delhi - 110002, India
| | - A Kumar
- Department of Gastroenterology, GB Pant Hospital, New Delhi - 110002, India
| | - U Baruah
- Department of Anaesthesiology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi - 110029, India
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Abstract
Biomaterials are considered with an emphasis on those used in artificial organs. Attention is drawn to the importance of the polymeric biomaterials and factors which affect their properties. Functions of membranes, sorbents, blood tubing, ventricular diaphragms and cell culture substrates are examined in order to obtain a summary of fundamental properties. Observations are made on the importance of blood compatibility assessment and its association with a biomaterial structure-property relationship. Blood-biomaterial interactions are discussed in terms of an overall relationship between the three components –- blood, biomaterial and antithrombotic agent, with examples given of factors influencing each component. Cell-biomaterial interactions are examined in the areas of toxicity evaluation and the promotion of cell attachment and growth, where an overall relationship is described for the cell, growth medium and growth factors, and the biomaterial acting as a substrate.
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Affiliation(s)
- J.M. Courtney
- Bioengineering Unit, University of Strathclyde, Glasgow - UK
| | - L. Irvine
- Bioengineering Unit, University of Strathclyde, Glasgow - UK
| | - C. Jones
- Bioengineering Unit, University of Strathclyde, Glasgow - UK
| | - S.M. Mosa
- Bioengineering Unit, University of Strathclyde, Glasgow - UK
| | - L.M. Robertson
- Bioengineering Unit, University of Strathclyde, Glasgow - UK
| | - S. Srivastava
- Bioengineering Unit, University of Strathclyde, Glasgow - UK
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Prasad GK, Prashanth S, Srivastava S, Nageswara Rao G, Babu DR. Synthesis, characterization, second and third order non-linear optical properties and luminescence properties of 1,10-phenanthroline-2,9-di(carboxaldehyde phenylhydrazone) and its transition metal complexes. OPEN CHEM 2017. [DOI: 10.1515/chem-2017-0036] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractThe requirement for materials which exhibit good second and third order non-linear optical properties and also for materials which could sense metals in trace quantities has kindled renewed investigations. Organometallics and coordination compounds show a lot of promise as new NLO materials combining the variety of organic moieties with the strength and variable oxidation states of metals. Especially ligands which selectively detect industrial pollutants like Cd and biologically significant metals like Zn are necessary. In the current work the ligand 1,10-phenanthroline-2,9-di(carboxaldehyde phenylhydrazone) (L) and its Ni2+, Co2+, Fe2+, Zn2+, Cd2+ and Ir3+ complexes were synthesized. These were characterized by UV-Vis, FT-IR, 1H NMR, MS and CHN microanalysis techniques. The complexes were shown to have the formula [ML]2+. The second and third order NLO of the ligand and its complexes were recorded These new compounds were found to have same order of third order nonlinear optical susceptibility as that of CS2 and their second hyperpolarizability was an order of magnitude greater than that of C60. Furthermore the ligand also displays selective luminescence sensing of metals ions Fe2+ and Ir3+ even in the presence of other metal ions.
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Affiliation(s)
- G. Krishna Prasad
- Department of Chemistry, Sri Sathya Sai Institute of Higher Learning, Prasanthinilayam, India, 515134
| | - S.S.P. Prashanth
- Department of Physics, Sri Sathya Sai Institute of Higher Learning, Prasanthinilayam, India, 515134
| | - S. Srivastava
- Department of Physics, Sri Sathya Sai Institute of Higher Learning, Prasanthinilayam, India, 515134
| | - G. Nageswara Rao
- Department of Chemistry, Sri Sathya Sai Institute of Higher Learning, Prasanthinilayam, India, 515134
| | - D. Rajesh Babu
- Department of Chemistry, Sri Sathya Sai Institute of Higher Learning, Prasanthinilayam, India, 515134
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Dash D, Tripathi M, Tripathi M, Ihtisham K, Padma M, Srivastava S. Clinical profile and treatment outcome of patients with anti LGI-1 encephalitis: A disease of jerks and confusion. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Srivastava S, Patil A, Bedi M, Tawar R. Paediatric electrical burn injuries: experience from a tertiary care burns unit in North India. Ann Burns Fire Disasters 2017; 30:185-188. [PMID: 29849520 PMCID: PMC5946754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Accepted: 07/09/2017] [Indexed: 06/08/2023]
Abstract
Electrical burn injuries in the paediatric age group constitute a small proportion of all burn cases and cause significant morbidity and long-term psychosocial impact. The objective of this study was to evaluate various aspects of electrical burn injuries in the paediatric age group in our region. A retrospective review was done of all paediatric electrical burns admitted to a tertiary care burns unit over a period of 12 months (January 2016 to December 2016). There were 77 cases of electrical burns under the age of 16 years. High voltage burns predominated and older age groups were more frequently affected. Male:female ratio was 4.1:1. Amputations were required in 18 (23%), skin grafting in 52 (67%) and flap cover in 29 (37%) patients. There were unfavourable outcomes in 32% patients with a mortality rate of 7.8%. Significant association was found between unfavourable outcomes and high voltage burn injuries and length of hospital stay. The impact of electrical burn injuries is substantial and can be reduced by simple preventive measures such as educating parents, improving health infrastructure and adherence to safety regulations.
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Affiliation(s)
- S. Srivastava
- Dr. Aditya Nanasaheb Patil
Department of Burns and Plastic Surgery, SMS Hospital, Jaipur302004 (Rajasthan)India.+91 9983308059
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Harini L, Karthikeyan B, Srivastava S, Suresh SB, Ross C, Gnanakumar G, Rajagopal S, Sundar K, Kathiresan T. Polyethylenimine-modified curcumin-loaded mesoporus silica nanoparticle (MCM-41) induces cell death in MCF-7 cell line. IET Nanobiotechnol 2017; 11:57-61. [PMID: 28476962 DOI: 10.1049/iet-nbt.2016.0075] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Breast cancer accounts for the first highest mortality rate in India and second in world. Though current treatment strategies are effectively killing cancer cells, they also end in causing severe side effects and drug resistance. Curcumin is a nutraceutical with multipotent activity but its insolubility in water limits its therapeutic potential as an anti-cancer drug. The hydrophilicity of curcumin could be increased by nanoformulation or changing its functional groups. In this study, curcumin is loaded on mesoporous silica nanoparticle and its anti-cancer activity is elucidated with MCF-7 cell death. Structural characteristics of Mobil Composition of Matter - 41(MCM-41) as determined by high-resolution transmission electron microscopy (HR-TEM) shows that MCM-41 size ranges from 100 to 200 nm diameters with pore size 2-10 nm for drug adsorption. The authors found 80-90% of curcumin is loaded on MCM-41 and curcumin is released efficiently at pH 3.0. The 50 µM curcumin-loaded MCM-41 induced 50% mortality of MCF-7 cells. Altogether, their results suggested that increased curcumin loading and sustained release from MCM-41 effectively decreased cell survival of MCF-7 cells in vitro.
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Affiliation(s)
| | - Bose Karthikeyan
- Department of Biotechnology, Kalasalingam University, Krishnankoil - 626 126, Tamil Nadu, India
| | - Sweta Srivastava
- Department of Translation Medicine, St. Johns National Academy of Health Sciences, Bangalore - 560 034, Karnataka, India
| | - Srinag Bangalore Suresh
- Department of Translation Medicine, St. Johns National Academy of Health Sciences, Bangalore - 560 034, Karnataka, India
| | - Cecil Ross
- Department of Medicine, St. Johns National Academy of Health Sciences, Bangalore - 560 034, Karnataka, India
| | - Georgepeter Gnanakumar
- Department of Physical Chemistry, Madurai Kamaraj University, Madurai - 620 021, Tamil Nadu, India
| | - Srinivasan Rajagopal
- Department of Physical Chemistry, Madurai Kamaraj University, Madurai - 620 021, Tamil Nadu, India
| | - Krishnan Sundar
- International Research Centre, Kalasalingam University, Krishnankoil, Tamil Nadu - 626 126, India
| | - Thandavarayan Kathiresan
- International Research Centre, Kalasalingam University, Krishnankoil, Tamil Nadu - 626 126, India.
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Srivastava S, Sharma BC, Puri AS, Sachdeva S, Jain L, Jindal A. Impact of completion of primary biliary procedure on outcome of endoscopic retrograde cholangiopancreatographic related perforation. Endosc Int Open 2017; 5:E706-E709. [PMID: 28791316 PMCID: PMC5546889 DOI: 10.1055/s-0043-105494] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 02/06/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND AND AIMS Perforation is one of the worst complications of therapeutic endoscopic retrograde cholangiopancreatography (ERCP). We aimed to study the epidemiology of ERCP related perforation and the impact of completion of intended procedure on the outcome of this complication. METHODS ERCP records from January 2007 to April 2012 were independently evaluated by two investigators for the occurrence of procedure related perforations. A total of 11 500 patients underwent therapeutic ERCP during the study period. The case records of 171 (1.5 %) patients with ERCP related perforations were reviewed to analyze the epidemiology and risk factors associated with poor outcome. RESULTS Of the 171 patients included in this study, the majority of perforations (n = 129, 75.4 %) were related to use of the needle-knife precut technique. Female gender (1.9 % vs 0.7 %, P < 0.001), age > 40 years (1.7 % vs 1.1 %, P < 0.01), and benign disease (1.7 % vs. 1.1 %, P < 0.01) were risk factors for ERCP related perforation. Most of the perforations (n = 135, 79 %) were detected during the procedure. The majority of patients were managed conservatively (n = 164, 96 %). Although 159 patients recovered, 12 patients (7 %) did not survive. Completion of intended biliary procedure for primary disease was associated with low risk of mortality (2 % vs 15.4 %, P < 0.001). CONCLUSIONS ERCP related perforation is uncommon. The majority of patients can be managed conservatively. The risk of mortality is low and completion of the intended biliary procedure decreases the risk of mortality.
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Affiliation(s)
- S. Srivastava
- Department of Gastroenterology, G.B. Pant Institute of Postgraduate Medical Education and Research, New Delhi, India,Corresponding author Dr S. Srivastava Room No. 210Academic BlockG.B. Pant Institute of Postgraduate Medical Education and Research1, Jawaharlal Nehru MargNew Delhi 110001India+91-11-23234242
| | - B. C. Sharma
- Department of Gastroenterology, G.B. Pant Institute of Postgraduate Medical Education and Research, New Delhi, India
| | - A. S. Puri
- Department of Gastroenterology, G.B. Pant Institute of Postgraduate Medical Education and Research, New Delhi, India
| | - S. Sachdeva
- Department of Gastroenterology, G.B. Pant Institute of Postgraduate Medical Education and Research, New Delhi, India
| | - L. Jain
- Department of Gastroenterology, G.B. Pant Institute of Postgraduate Medical Education and Research, New Delhi, India
| | - A. Jindal
- Department of Gastroenterology, G.B. Pant Institute of Postgraduate Medical Education and Research, New Delhi, India
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Abstract
Progression and initiation of different diseases including pulmonary diseases, alzheimer's and tumors are linked with the oxidative stress, an important cause of cell damage. Different antioxidant enzymes are involved in detoxifying reactive oxygen species including hydrogen peroxide (H2O2) that is generated in response to various stimuli and has important role in cell activation & bio-signaling processes. Herein, we developed hydrogen peroxide electrochemical sensor based on horseradish peroxidase (HRP) entrapped polymerized thionine (PTH) film. Electrochemical deposition of thionine (dye) on indium tin oxide (ITO) surface was carried out through chornoamperometry followed by cyclic voltammetry. Deposited thionine thin film obtained was checked for its stability at different scan rates. The PTH-modified electrodes showed linear dependence of peak current with scan rate within the range of 20 to 100 mV s-1. Thionine used as electron transfer mediator between heme site of HRP and electrode. Cyclic voltammetry showed increase in the reduction peak current due to electrocatalytic reduction of H2O2. The sensor detection limit range from 10-1 _ 102 µM and limit of detection was 0.1µM. The proposed sensor has good storage response, cost effective, high sensitivity and wide linear range that could be used for the fabrication of other enzyme based biosensors.
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Affiliation(s)
- P Singh
- Department of Biotechnology, Motilal Nehru National Institute of Technology, Allahabad-211004 Uttar Pradesh, India
| | - S Srivastava
- Department of Biotechnology, Motilal Nehru National Institute of Technology, Allahabad-211004 Uttar Pradesh, India
| | - S K Singh
- Centre for Animal Sciences, School of Basic and Applied Sciences, Central University of Punjab, Bathinda-151001 Punjab, India
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Sharma N, Srivastava S, Kern F, Xian W, Yeoh KG, Ming T, McKeon F, Ho KY. CEACAM 6, a novel marker for the diagnosis of Barrett's esophagus. Dis Esophagus 2017; 30:1-5. [PMID: 28475729 DOI: 10.1093/dote/dox026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 03/16/2017] [Indexed: 02/07/2023]
Abstract
Barrett's esophagus (BE) is a premalignant condition associated with the development of esophageal adenocarcinoma (EAC). Despite the low risk of progression to EAC, evidence highlights the notably poor survival rates of this malignancy. The mainstay form of diagnosis of BE is endoscopy and biopsy sampling. However, research emphasizes limitations with regards to the histological detection of BE and associated dysplasia. The aim of this study is to evaluate the clinical significance of CEACAM6 as a potential biomarker for the diagnosis of BE and beyond. Retrospective tissue samples were obtained from columnar lined esophagus without goblet cells (n = 27), BE (n = 18), BE associated dysplasia (n = 16), and EAC (n = 24). Standardized immunohistochemistry for CEACAM6 was performed followed by quantitative staining analysis. Statistical analysis across the BE spectrum for CEACAM6 was undertaken and a P value <0.05 was considered significant. CEACAM6 expression increased from columnar lined epithelium (CLE) to BE with a subsequent decrease to dysplasia and adenocarcinoma. The expression of CEACAM6 was significant from CLE to BE at p 0.001, CLE to dysplasia at p 0.001, BE to dysplasia at p 0.006, CLE to adenocarcinoma at p 0.001 and BE to adenocarcinoma at p 0.001. There was no significant difference in expression between dysplasia and adenocarcinoma (P = 0.15). Our findings highlight the increasing expression of CEACAM6 from CLE to BE with a subsequent decrease to dysplasia and adenocarcinoma. In view of this, we advocate the utilization of this marker for the enhanced diagnosis of BE and for the distinction of BE and dysplasia.
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Affiliation(s)
- N Sharma
- Departments of Medicine and Pathology, National University Health System
| | - S Srivastava
- Departments of Cancer Science Institute, National University of Singapore
| | - F Kern
- Departments of Genome Institute of Singapore, A-STAR, Singapore
| | - W Xian
- Departments of Somatic Stem Cell Centre, University of Houston, USA
| | - K G Yeoh
- Departments of Medicine and Pathology, National University Health System
| | - T Ming
- Departments of Pathology, National University Health System
| | - F McKeon
- Departments of Somatic Stem Cell Centre, University of Houston, USA
| | - K Y Ho
- Departments of Medicine and Pathology, National University Health System
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Jilani A, Srivastava S, Shukla D, Tiwari S. Pupillometric Assessment of Cholinergic Functioning in People with Alzheimer Disease: A Study from India. Eur Psychiatry 2017. [DOI: 10.1016/j.eurpsy.2017.01.1096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
BackgroundDiagnosis of Alzheimer disease is mainly clinical, based on longitudinal history and clinical criteria due to lack of specific biochemical tests and neuroimaging studies. Deficient central cholinergic activity of AD pathology is said to be reflected as decreased peripheral cholinergic activity. Assessing peripheral cholinergic function with pupillometer for diagnostic and prognostic purpose may be beneficial, as it may be a non-invasive, acceptable, and easily administered diagnostic tool if proven so.MethodThis is a single point case control pilot study with sample size of 45 (25 AD patient and 20 controls). CAMDEX-R based interview, HMSE, and DSM-IV criteria were used for detailed assessment and diagnosis. The pupillometric parameters (Horizontal and vertical diameters of pupil) were measured by Oasis Colvard pupillometer (SKU-0401A) under three conditions namely after 5 minute of dark adaptation in dark room (PD-5min-DA i.e. Baseline PD); after 5 minutes (PD-5min-T) and 15 minutes (PD-15min-T) of instillation of 2–3 drops of 1.0% Tropicamide.ResultsThere was no difference in baseline pupil diameter (horizontal + vertical) of AD patients and age matched healthy controls. 1% tropicamide induced significant increment in pupil diameters from baseline to after 5 (‘PD-5min-T’) and 15 minutes (‘PD-15min-T’) of its instillation in both AD patients and age matched healthy controls. But tropicamide induced increment in pupil diameters were approximately equal in cases and controls.ConclusionThe study did not find the role of 1% tropicamide induced pupillary hypersensitivity in AD patients for diagnostic purpose.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Srivastava S, Kumar A, Agarwal V, Chubey P, Donaldson L, Potokar J. Relationship between taste thresholds and antidepressant response: Preliminary findings. Eur Psychiatry 2017. [DOI: 10.1016/j.eurpsy.2017.02.384] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
IntroductionIn healthy volunteers, light acting through serotonin pathways, decreases the threshold for sweet, but not salt taste; similar to SSRI paroxetine. In depressive disorders, there is deficiency of serotonin throughput, which is remedied by SSRI medications, and results in improvement in symptoms of depression. Thus, we report on taste thresholds before and after SSRI treatment.ObjectivesTo study the variation in thresholds for sweet with SSRI treatment in depressed patients in short- and long-term.AimsTo compare the threshold for sweet (test) and salt (control) after 1 and 4 weeks of SSRI escitalopram therapy in depressed patients.MethodsThe project was approved by the institutional ethics committee. Following informed consent, depressed patients were initiated on escitalopram 10 mg/d (increased to 15 or 20 mg, if required after 1 week,). Taste recognition threshold, intensity and pleasantness were measured for sweet and salt. Each tastant was made −1 to −3 (100 mM–1 mM). Regional recognition thresholds were determined at the tip of the tongue using a cotton bud well soaked in the tastant.ResultsThree males and 4 females of mean ages 39.1 years completed the study. There was significant shift to the left for sweet thresholds between days 0 and 7, and 7 and 28 [F(Dfn, Dfd) = 9.242 (4.162) P < 0.0001]. A similar shift to the left was seen for salt but day 7 only [F(Dfn, Dfd) = 6.213 (4.162)].ConclusionThe increase in serotonin throughput as envisaged through SSRI treatment was paralleled by decrease in sweet thresholds.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Sapkota B, Srii R, Srivastava S, Marla V, Koju S. Assessment of The Relationship of Incisive Papilla to Maxillary Central Incisor and Canine-Papilla-Canine Line among the Dentate population of Central Nepal. Kathmandu Univ Med J (KUMJ) 2017; 17:150-154. [PMID: 34547848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Background Incisive papilla has been used as a fixed anatomical landmark to guide in teeth arrangement. Objective To assess the relationship of distance from central incisor to incisive papilla with various types of arch forms, shapes of incisive papilla and types of canine-papillacanine relation. Method Two hundred maxillary stone casts were prepared. Eighteen casts were excluded as they had voids and the final study was carried out in 182 participants. The arch form was assessed according to Testut L. and shape of incisive papilla was recorded according to Filho IE et al. A digital Vernier caliper was used to measure the distance from posterior point of incisive papilla to the mesio-incisal edge from the labial side of maxillary central incisor. The inter-canine line was drawn and its position with incisive papilla was assessed. The analysis was done using SPSS version 20.0. One way ANOVA was done. Result Result showed that parabolic type of arch was the most common i.e. 76.4%. Mean distance of central incisor to incisive papilla was 11.093±1.894 mm. No significant difference was observed in the distance of Central incisor to Incisive Papilla among different arch forms (p=0.854) and various shapes of incisive papilla (p=0.091). The mean distance of central incisor to incisive papilla was significantly greater when canine-papilla-canine line passed from the middle than from posterior part of incisive papilla. Conclusion These results suggest that incisive papilla is a reliable biometric guide which would help to reduce the clinical time of both the dentist and the patients in placement of the anterior teeth.
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Affiliation(s)
- B Sapkota
- Department of Dentistry, Kathmandu University School of Medical Sciences, Dhulikhel, Nepal
| | - R Srii
- Department of Dentistry, Kathmandu University School of Medical Sciences, Dhulikhel, Nepal
| | - S Srivastava
- Department of Dentistry, Kathmandu University School of Medical Sciences, Dhulikhel, Nepal
| | - V Marla
- Department of Dentistry, Kathmandu University School of Medical Sciences, Dhulikhel, Nepal
| | - S Koju
- Department of Dentistry, Kathmandu University School of Medical Sciences, Dhulikhel, Nepal
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Srivastava S. Views of relatives and friends about the person who is having first episode of depression. Eur Psychiatry 2017. [DOI: 10.1016/j.eurpsy.2017.01.755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
IntroductionMajor depressive episode is having highest lifetime prevalence almost about 18% of all psychiatric disorder. W.H.O has ranked depression the 4th leading cause of disability worldwide and projects that it will be 2nd leading cause of disability by 2020. a number of consistent socio demographic correlates have also been found across countries. Here I am going to give a glimpse of MDD i.e. Depression excluding Bipolar Depression. Although It is the commonest psychiatric disorder, but attitude views about disease is very unscientific and biased.ObjectiveObjective of this study was to know the views of relatives and friends about Depression, and acceptance of scientific view about depression.AimsAs various survey reports are projecting that Depression will be the 2nd commonest cause of disability by 2020. So to create an awareness about depression and its modalities of successful treatments.MethodIn this study, 96 patients were selected who had first episode of MDD without any discrimination of male and female. Their relatives and friends were categorized by their socioeconomic status. All of them were put on open questions regarding the disease.ResultsAmongst them 10% were from upper socioeconomic status, 68% were from middle socioeconomic status and 22% were from lower socioeconomic status. Only 36% accepted depression as a disease, 45.8% suggested to change behavior and thought to get rid off disease; 8.2%believed the disease is due to devils spirit; 20.1% had no comments.ConclusionAfter explaining the disease psycho and pharmacopathology and showing the results of medicines 91.3% accepted it as a disease entity, 4.2% still in favor of devils spirit and 4.5% had no comments.Disclosure of interestThe author has not supplied his/her declaration of competing interest.
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Gollapalli K, Ghantasala S, Kumar S, Srivastava R, Rapole S, Sridhar E, Srivastava S, Moiyadi A. P08.43 Understanding the aggressive nature of glioblastoma tumors associated with the subventricular zone. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Gupta N, Gupta P, Srivastava S. Abstract P3-03-10: Penfluridol reduces paclitaxel resistance in breast cancer by inhibiting HER2/β-catenin signaling. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p3-03-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
This abstract was not presented at the symposium.
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Affiliation(s)
- N Gupta
- Texas Tech University Health Sciences Center, Amarillo, TX
| | - P Gupta
- Texas Tech University Health Sciences Center, Amarillo, TX
| | - S Srivastava
- Texas Tech University Health Sciences Center, Amarillo, TX
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Schollin Ask L, Hultman Dennison S, Stjärne P, Granath A, Srivastava S, Eriksson M, Lindstrand A, Ryd Rinder M. Most preschool children hospitalised for acute rhinosinusitis had orbital complications, more common in the youngest and among boys. Acta Paediatr 2017; 106:268-273. [PMID: 27797408 DOI: 10.1111/apa.13650] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Revised: 09/07/2016] [Accepted: 10/26/2016] [Indexed: 11/29/2022]
Abstract
AIM This study established the incidence of acute rhinosinusitis and related orbital complications in tertiary care in Stockholm County and surveyed the clinical outcomes. METHODS This was a population-based, retrospective, observational study, from July 1, 2003 to June 30, 2007, of the hospital admissions records of 213 children up to five years old, with a diagnosis of sinusitis and related complications. RESULTS Preseptal cellulitis was present in 171 of the 213 admissions, which equated to an incidence of orbital complications due to acute rhinosinusitis of 36 per 100 000 people per year (95% confidence interval 26-49). Postseptal complications occurred in seven cases. The incidence rate ratio for hospitalisation of children less than two years old with rhinosinusitis compared with children aged 2-5 years was 2.8 (95% confidence interval 1.8-4.4). The incidence among boys was 53 per 100 000 people per year and 36 per 100 000 people per year for girls, and the incidence rate ratio was 1.5 (95% confidence interval 1.0-2.3). The most common bacterial finding was Streptococcus pneumoniae. CONCLUSION Most children hospitalised for acute rhinosinusitis had an orbital complication, and this was more common in children under the age of two years and boys. Severe postseptal complications were rare.
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Affiliation(s)
- L Schollin Ask
- Sach′s Children and Youth Hospital South General Hospital Stockholm Sweden
- Department of Medicine Clinical Epidemiology Unit Karolinska Institutet Stockholm Sweden
| | - S Hultman Dennison
- Department of Otorhinolaryngology Karolinska University Hospital Stockholm Sweden
- Department of Clinical Science, Intervention and Technology (CLINTEC) Division of Ear, Nose‐ and Throat Diseases Karolinska Institutet Stockholm Sweden
| | - P Stjärne
- Department of Otorhinolaryngology Karolinska University Hospital Stockholm Sweden
- Department of Clinical Science, Intervention and Technology (CLINTEC) Division of Ear, Nose‐ and Throat Diseases Karolinska Institutet Stockholm Sweden
| | - A Granath
- Department of Otorhinolaryngology Karolinska University Hospital Stockholm Sweden
- Department of Clinical Science, Intervention and Technology (CLINTEC) Division of Ear, Nose‐ and Throat Diseases Karolinska Institutet Stockholm Sweden
| | - S Srivastava
- Department of Radiology Karolinska University Hospital Stockholm Sweden
| | - M Eriksson
- Astrid Lindgren Children′s Hospital Karolinska University Hospital Stockholm Sweden
| | - A Lindstrand
- Public Health Agency of Sweden Solna Sweden
- Department of Public Health Sciences Division of Global Health Karolinska Institutet Stockholm Sweden
| | - M Ryd Rinder
- Sach′s Children and Youth Hospital South General Hospital Stockholm Sweden
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Upadhyaya C, Chaurasia NK, Neupane I, Srivastava S. Incidence and Pattern of Impaction of Mandibular Third Molars : A Single Institutional Experience in Nepal. Kathmandu Univ Med J (KUMJ) 2017; 15:67-70. [PMID: 29446366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Background Impacted teeth are those that have erupted or are partially erupted and will not assume a normal arch relationship with opposing and adjacent teeth and tissues. Objective To evaluate the incidence and pattern of mandibular impacted third molars in patients of Dhulikhel Hospital. Method A retrospective study was conducted from March 2016 to November 2016 and reviewed 581 orthopantomograms and clinical records of patients who presented to the Department of Oral and Maxillofacial Surgery. The angulation of impaction was measured using Winter's classification and the level and position of impacted third molar was recorded using Pell and Gregory classification system. The etiology for extraction was recorded from previous clinical records. Result In this study, incidence of impaction was more prevalent in females. The most common pattern of impaction was mesioangular followed by horizontal, vertical, distoangular and others. The most common cause of extraction was caries in the third molar. There was no significant difference between the pattern of impaction in the right and left sides of the mandible. Conclusion Classifications of impacted mandibular third molars can be effectively used to predict the surgical difficulty and to evaluate the risk of postoperative complications. Therefore, this study highlights the importance of evaluation of pattern, type and class of impaction in Nepalese population giving a high clinical significance.
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Affiliation(s)
- C Upadhyaya
- Department of Oral and Maxillofacial Surgery, Dhulikhel Hospital, Kathmandu University Hospital, Kavre, Nepal
| | - N K Chaurasia
- Department of Oral and Maxillofacial Surgery, Dhulikhel Hospital, Kathmandu University Hospital, Kavre, Nepal
| | - I Neupane
- Department of Oral and Maxillofacial Surgery, Dhulikhel Hospital, Kathmandu University Hospital, Kavre, Nepal
| | - S Srivastava
- Department of Community and Public Health Dentistry, Dhulikhel Hospital, Kathmandu University Hospital, Kavre, Nepal
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Suraj S, Dhar C, Srivastava S. Circulating nucleic acids: An analysis of their occurrence in malignancies. Biomed Rep 2016; 6:8-14. [PMID: 28123700 DOI: 10.3892/br.2016.812] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 09/15/2016] [Indexed: 12/18/2022] Open
Abstract
Through a regulated or fortuitous phenomenon, small portions of cell nucleic acids are thrown into circulation. Since the discovery of these circulating nucleic acids (CNAs) in 1948, numerous studies have been published to elucidate their clinical implications in multifarious diseases. Scientists have now discovered disease-specific genetic aberrations, such as mutations, microsatellite alterations, epigenetic modulations (including aberrant methylation), as well as viral DNA/RNA from nucleic acids in plasma and serum. CNAs have become increasingly popular due to their potential for use as a liquid biopsy, which is a tool for non-invasive diagnosis and monitoring of diseases, such as cancer, stroke, trauma, myocardial infarction, autoimmune disorders, and pregnancy-associated complications. While the diagnostic potential of CNAs has been investigated extensively, there is a paucity of understanding of their pathophysiological functions. Are these CNAs part of the cell's regular framework of functioning? Or do they act as molecular players in disease initiation and progression? The aim of this review is to investigate the origins and functions of the circulating cell-free nucleic acids in the plasma and serum of patients with various malignancies, and propose areas of study, which may elucidate the novel underlying mechanisms that are functioning during cancer initiation/progression.
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Affiliation(s)
- Shankar Suraj
- Department of Transfusion Medicine and Immunohematology, St. John's Medical College and Hospital, St. John's National Academy of Health Sciences, Bangalore, Karnataka 560034, India
| | - Chirag Dhar
- St. John's Research Institute, St. John's National Academy of Health Sciences, Bangalore, Karnataka 560034, India
| | - Sweta Srivastava
- Department of Transfusion Medicine and Immunohematology, St. John's Medical College and Hospital, St. John's National Academy of Health Sciences, Bangalore, Karnataka 560034, India
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Cohen JS, Srivastava S, Farwell Hagman KD, Shinde DN, Huether R, Darcy D, Wallerstein R, Houge G, Berland S, Monaghan KG, Poretti A, Wilson AL, Chung WK, Fatemi A. Further evidence that de novo missense and truncating variants in ZBTB18 cause intellectual disability with variable features. Clin Genet 2016; 91:697-707. [PMID: 27598823 DOI: 10.1111/cge.12861] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 08/12/2016] [Accepted: 09/01/2016] [Indexed: 01/21/2023]
Abstract
Identification of rare genetic variants in patients with intellectual disability (ID) has been greatly accelerated by advances in next generation sequencing technologies. However, due to small numbers of patients, the complete phenotypic spectrum associated with pathogenic variants in single genes is still emerging. Among these genes is ZBTB18 (ZNF238), which is deleted in patients with 1q43q44 microdeletions who typically present with ID, microcephaly, corpus callosum (CC) abnormalities, and seizures. Here we provide additional evidence for haploinsufficiency or dysfunction of the ZBTB18 gene as the cause of ID in five unrelated patients with variable syndromic features who underwent whole exome sequencing revealing separate de novo pathogenic or likely pathogenic variants in ZBTB18 (two missense alterations and three truncating alterations). The neuroimaging findings in our cohort (CC hypoplasia seen in 4/4 of our patients who underwent MRI) lend further support for ZBTB18 as a critical gene for CC abnormalities. A similar phenotype of microcephaly, CC agenesis, and cerebellar vermis hypoplasia has been reported in mice with central nervous system-specific knockout of Zbtb18. Our five patients, in addition to the previously described cases of de novo ZBTB18 variants, add to knowledge about the phenotypic spectrum associated with ZBTB18 haploinsufficiency/dysfunction.
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Affiliation(s)
- J S Cohen
- Division of Neurogenetics, Hugo W. Moser Research Institute, Kennedy Krieger Institute, Baltimore, MD, USA
| | - S Srivastava
- Division of Neurogenetics, Hugo W. Moser Research Institute, Kennedy Krieger Institute, Baltimore, MD, USA.,Department of Neurology, The Johns Hopkins Hospital, Baltimore, MD, USA.,Department of Pediatrics, The Johns Hopkins Hospital, Baltimore, MD, USA
| | | | - D N Shinde
- Division of Clinical Genomics, Ambry Genetics, Aliso Viejo, CA, USA
| | - R Huether
- Department of Bioinformatics, Ambry Genetics, Aliso Viejo, CA, USA
| | - D Darcy
- Silicon Valley Genetics Center, Santa Clara Valley Medical Center, San Jose, CA, USA
| | - R Wallerstein
- Hawaii Community Genetics, Kapiolani Medical Center for Women and Children, Honolulu, HI, USA
| | - G Houge
- Center for Medical Genetics and Molecular Medicine, Haukeland University Hospital, Bergen, Norway.,Department of Medical Genetics, St. Olav Hospital, Trondheim, Norway
| | - S Berland
- Center for Medical Genetics and Molecular Medicine, Haukeland University Hospital, Bergen, Norway.,Department of Medical Genetics, St. Olav Hospital, Trondheim, Norway
| | | | - A Poretti
- Section of Pediatric Neuroradiology, Division of Pediatric Radiology, Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins Hospital, Baltimore, MD, USA
| | - A L Wilson
- Department of Clinical Genetics, New York Presbyterian Hospital, New York, NY, USA
| | - W K Chung
- Department of Pediatrics, Columbia University, New York, NY, USA.,Department of Medicine, Columbia University, New York, NY, USA
| | - A Fatemi
- Division of Neurogenetics, Hugo W. Moser Research Institute, Kennedy Krieger Institute, Baltimore, MD, USA.,Department of Neurology, The Johns Hopkins Hospital, Baltimore, MD, USA.,Department of Pediatrics, The Johns Hopkins Hospital, Baltimore, MD, USA
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Segal N, Infante J, Sanborn R, Gibney G, Lawrence D, Rizvi N, Leidner R, Gajewski T, Bertino E, Sharfman W, Cooley S, Topalian S, Urba W, Wolchok J, Gu X, Passey C, McDonald D, Aanur P, Srivastava S, Hodi F. Safety of the natural killer (NK) cell-targeted anti-KIR antibody, lirilumab (liri), in combination with nivolumab (nivo) or ipilimumab (ipi) in two phase 1 studies in advanced refractory solid tumors. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw378.40] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Srivastava S, Lal SB, Mishra DC, Angadi UB, Chaturvedi KK, Rai SN, Rai A. An efficient algorithm for protein structure comparison using elastic shape analysis. Algorithms Mol Biol 2016; 11:27. [PMID: 27708689 PMCID: PMC5041553 DOI: 10.1186/s13015-016-0089-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 09/21/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Protein structure comparison play important role in in silico functional prediction of a new protein. It is also used for understanding the evolutionary relationships among proteins. A variety of methods have been proposed in literature for comparing protein structures but they have their own limitations in terms of accuracy and complexity with respect to computational time and space. There is a need to improve the computational complexity in comparison/alignment of proteins through incorporation of important biological and structural properties in the existing techniques. RESULTS An efficient algorithm has been developed for comparing protein structures using elastic shape analysis in which the sequence of 3D coordinates atoms of protein structures supplemented by additional auxiliary information from side-chain properties are incorporated. The protein structure is represented by a special function called square-root velocity function. Furthermore, singular value decomposition and dynamic programming have been employed for optimal rotation and optimal matching of the proteins, respectively. Also, geodesic distance has been calculated and used as the dissimilarity score between two protein structures. The performance of the developed algorithm is tested and found to be more efficient, i.e., running time reduced by 80-90 % without compromising accuracy of comparison when compared with the existing methods. Source codes for different functions have been developed in R. Also, user friendly web-based application called ProtSComp has been developed using above algorithm for comparing protein 3D structures and is accessible free. CONCLUSIONS The methodology and algorithm developed in this study is taking considerably less computational time without loss of accuracy (Table 2). The proposed algorithm is considering different criteria of representing protein structures using 3D coordinates of atoms and inclusion of residue wise molecular properties as auxiliary information.
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Khan AZ, Arora N, Haque M, Srivastava S. Correlation between orbital and cranial morphometry in Northwest Uttar Pradesh population. J ANAT SOC INDIA 2016. [DOI: 10.1016/j.jasi.2016.08.263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ranjan R, Kataria D, Singh K, Srivastava S. Unilateral aberrant renal arteries and their clinical significance: A case report. J ANAT SOC INDIA 2016. [DOI: 10.1016/j.jasi.2016.08.398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Agaskar R, Srivastava S, Daftary S. Abstract PR527. Anesth Analg 2016. [DOI: 10.1213/01.ane.0000492910.24950.30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Vasavada V, Shah SK, Vasavada VA, Vasavada AR, Trivedi RH, Srivastava S, Vasavada SA. Comparison of IOL power calculation formulae for pediatric eyes. Eye (Lond) 2016; 30:1242-50. [PMID: 27494083 DOI: 10.1038/eye.2016.171] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 07/05/2016] [Indexed: 11/09/2022] Open
Abstract
PurposeTo evaluate and compare the accuracy of modern intraocular lens (IOL) power calculation formulae in pediatric eyes and compare prediction error (PE) obtained with manufacturer's vs personalized lens constant.Patients and methodsAn observational case study was conducted in 117 eyes (117 patients) undergoing pediatric cataract surgery with IOL implantation. PE was calculated as predicted refraction minus actual postoperative refraction, and absolute PE as absolute difference independent of the sign, (APE)=predicted refraction minus actual postoperative refraction. This was done for each formula using manufacturer's and personalized lens constant. Further, PE and APE were evaluated according to axial length (AL).ResultsMean age of children was 2.97 years. About 66/117 eyes (56.4%) were below 2 years of age. Using Holladay 2, Holladay 1, Hoffer Q, and SRK/T formulae with manufacturer's lens constant, mean PE was 0.36, 0.41, 0.69, and 0.28 diopter (D), respectively. With personalized lens constant, it was 0.16, 0.15, 0.50, and -0.12 D, respectively. Difference in mean PE between the formulae was statistically significant (P<0.0001). SRK/T and Holladay 2 formulae had the least PE, both with manufacturer's and personalized constant. For eyes with AL<20 mm, SRK/T and Holladay 2 formulae gave the least PE. Personalizing the lens constant led to a decrease in mean PE in all formulae, except the Hoffer Q formula. However, personalizing the lens constant did not significantly improve the APE. At least 21% eyes had an APE of >2 D with all formulae, even with personalized lens constants.ConclusionIn pediatric eyes, SRK/T and the Holladay 2 formulae had the least PE. Personalizing the lens formula constant did reduce the PE significantly for all formulae except Hoffer Q. In extremely short eyes (AL<20 mm), SRK/T and Holladay 2 formulae gave the best PE.
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Affiliation(s)
- V Vasavada
- Iladevi Cataract & IOL Research Centre, Raghudeep Eye Clinic, Ahmedabad, India
| | - S K Shah
- Iladevi Cataract & IOL Research Centre, Raghudeep Eye Clinic, Ahmedabad, India
| | - V A Vasavada
- Iladevi Cataract & IOL Research Centre, Raghudeep Eye Clinic, Ahmedabad, India
| | - A R Vasavada
- Iladevi Cataract & IOL Research Centre, Raghudeep Eye Clinic, Ahmedabad, India
| | - R H Trivedi
- Storm Eye Institute, Medical University of South Carolina, Charleston, SC, USA
| | - S Srivastava
- Iladevi Cataract & IOL Research Centre, Raghudeep Eye Clinic, Ahmedabad, India
| | - S A Vasavada
- Iladevi Cataract & IOL Research Centre, Raghudeep Eye Clinic, Ahmedabad, India
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Affiliation(s)
- M S Bhatia
- Department of Psychiatry, University College of Medical Sciences & GTB Hospital, Delhi, India
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Srivastava S, Potla S, Torck A, Zhang M, Dussor G, Ray P, Price T. (278) A potential role for eIF4A in regulation of nociceptor plasticity: a motif-based genome-wide search for eIF4A targets. The Journal of Pain 2016. [DOI: 10.1016/j.jpain.2016.01.184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Karak A, Mukherjee A, Chakraborty A, Samanta B, Verma S, Talukdar A, Srivastava S. Comparative study between vivax and falciparum malaria in Eastern India: Breaking a myth. Int J Infect Dis 2016. [DOI: 10.1016/j.ijid.2016.02.778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Srivastava S. Attitude of attendants for E.C.T. to be given in patients of psychiatric disorders. Eur Psychiatry 2016. [DOI: 10.1016/j.eurpsy.2016.01.1455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
IntroductionUtilization of E.C.T. has diminished since the middle of 20th century but, inspite of widespread use of pharmacological agents for treatment of major psychiatric disorders, E.C.T. is still treatment of choice for patients with severe suicidal symptoms, catatonia and diseases resistant to various pharmacological agents. But inspite of its excellent effect in various psychiatric disorders, acceptance of E.C.T. is very poor in society.ObjectiveObjective of this study was to know the attitude of attendants for E.C.T. and acceptance after detailed description of procedure and discussing merits and demerits of E.C.T.AimsAs still it is the best treatment for certain psychiatric disorders, so to increase the awareness about its benefits and try to remove the negativity regarding E.C.T. in society.MethodIn this study, 61 patients were randomly selected who had indication for E.C.T. without any discrimination of male and female. Their attendants were categorized by their socioeconomic status. All the attendants were asked open questions regarding their opinion for E.C.T. before taking consent.ResultSixty patients were selected who had indication for E.C.T. and their attendants were asked to give their opinion for E.C.T. Amongst them 9.84% were from upper socioeconomic status, 68.86% were from middle socioeconomic status and 21.31% were from lower socioeconomic status. Only 11.48% had a positive attitude, 75.40% had a negative attitude and 16.39% had no comments.ConclusionAfter developing good rapport and confidence with attendants and detailed explanation of E.C.T. procedure, its merits and demerits 75.40% had given a positive attitude, 22.95% had given negative attitude and still 1.64% had no comments.Disclosure of interestThe author has not supplied his declaration of competing interest.
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Subramani E, Jothiramajayam M, Dutta M, Chakravorty D, Joshi M, Srivastava S, Mukherjee A, Datta Ray C, Chakravarty BN, Chaudhury K. NMR-based metabonomics for understanding the influence of dormant female genital tuberculosis on metabolism of the human endometrium. Hum Reprod 2016; 31:854-65. [PMID: 26851602 DOI: 10.1093/humrep/dew003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 01/05/2016] [Indexed: 01/13/2023] Open
Abstract
STUDY QUESTION Does investigation of metabolic perturbations in endometrial tissue of women with dormant genital tuberculosis (GTB) during the window of implantation (WOI) assist in improving the understanding of endometrial receptivity? SUMMARY ANSWER In dormant GTB cases significant alterations in endometrial tissue metabolites occur, largely related to energy metabolism and amino acid biosynthesis in dormant GTB cases. WHAT IS KNOWN ALREADY As an intracellular pathogen, Mycobacterium tuberculosis strongly influences the metabolism of host cells causing metabolic dysregulation. It is also accepted that dormant GTB impairs the receptive status of the endometrium. Global metabolic profiling is useful for an understanding of disease progression and distinguishing between diseased and non-diseased groups. STUDY DESIGN, SIZE, DURATION Endometrial tissue samples were collected from patients reporting at the tertiary infertility care center during the period September 2011-March 2013. Women having tested positive for GTB were considered as the study group (n = 24). Normal healthy women undergoing sterilization (n = 26) and unexplained infertile women with repeated IVF failure (n = 21) volunteered to participate as controls. PARTICIPANTS/MATERIALS, SETTING, METHODS Endometrial tissue samples were collected 6-10 days after confirmation of ovulation. PCR and BACTEC-460 culture were used for diagnosing GTB. Proton nuclear magnetic resonance (1H NMR) spectra of tissue were recorded using a 700 MHz Bruker Avance AV III spectrometer. Following phase and baseline correction of all NMR spectra by Bruker Topspin 2.1 software, spectral peak alignment of the data was performed. Multivariate analysis was applied to all spectra and individual metabolites identified and multiple correlation analysis was performed. MAIN RESULTS AND THE ROLE OF CHANCE Leucine, isoleucine, acetate, lactate, glutamate, glutamine, methionine, lysine, creatine, glycogen, glycine, proline and choline were found to be significantly increased (P < 0.05) in endometrial tissue of women with dormant GTB compared with unexplained infertile women with repeated implantation failure. Valine, citrate, succinate and aspartate were also observed to be significantly up-regulated (P < 0.01). Furthermore, a significant decrease in glucose (P < 0.05), threonine (P < 0.05), tyrosine (P < 0.01) and phenylalanine (P < 0.0001) was observed in women with dormant GTB. Pearson's correlation analysis between the expression of various endometrial receptivity markers and metabolites showed a significant negative correlation (-0.236 to -0.545, P < 0.05). Also, the metabolites were positively correlated with endometrial receptivity markers (0.207 to 0.618, P < 0.05). LIMITATIONS, REASONS FOR CAUTION It is often difficult to diagnose dormant GTB because it tends to exist without any clinical signs or symptoms. In addition, the diagnosis of GTB by culture remains a challenge due to low detection rates and its paucibacillary nature. Testing for prostate-specific antigen or the Y chromosome in order to account for the possible influences of recent exposure to semen on endometrial metabolism would be important. WIDER IMPLICATIONS OF THE FINDINGS The metabolic changes associated with the dormant tubercle infection are of potential relevance to clinicians for the treatment of dormant GTB-related infertility. STUDY FUNDING/COMPETING INTERESTS Government of India, Indian Council of Medical Research. There are no conflicts of interest.
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Affiliation(s)
- E Subramani
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - M Jothiramajayam
- Cell Biology and Genetic Toxicology Laboratory, Centre of Advanced study, Department of Botany, University of Calcutta, Kolkata 700019, India
| | - M Dutta
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - D Chakravorty
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - M Joshi
- National Facility for High-field NMR, Tata Institute of Fundamental Research, Mumbai 400005, India
| | - S Srivastava
- National Facility for High-field NMR, Tata Institute of Fundamental Research, Mumbai 400005, India
| | - A Mukherjee
- Cell Biology and Genetic Toxicology Laboratory, Centre of Advanced study, Department of Botany, University of Calcutta, Kolkata 700019, India
| | - C Datta Ray
- Department of Obstetrics and Gynaecology, Institute of Post-Graduate Medical Education and Research (IPGME&R) and SSKM Hospital, Kolkata 700020, India
| | | | - K Chaudhury
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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87
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Srivastava S, Baptista MS. Markovian language model of the DNA and its information content. R Soc Open Sci 2016; 3:150527. [PMID: 26909179 PMCID: PMC4736934 DOI: 10.1098/rsos.150527] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Accepted: 11/26/2015] [Indexed: 05/12/2023]
Abstract
This work proposes a Markovian memoryless model for the DNA that simplifies enormously the complexity of it. We encode nucleotide sequences into symbolic sequences, called words, from which we establish meaningful length of words and groups of words that share symbolic similarities. Interpreting a node to represent a group of similar words and edges to represent their functional connectivity allows us to construct a network of the grammatical rules governing the appearance of groups of words in the DNA. Our model allows us to predict the transition between groups of words in the DNA with unprecedented accuracy, and to easily calculate many informational quantities to better characterize the DNA. In addition, we reduce the DNA of known bacteria to a network of only tens of nodes, show how our model can be used to detect similar (or dissimilar) genes in different organisms, and which sequences of symbols are responsible for most of the information content of the DNA. Therefore, the DNA can indeed be treated as a language, a Markovian language, where a 'word' is an element of a group, and its grammar represents the rules behind the probability of transitions between any two groups.
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Aggarwal A, Srivastava S, Goel A, Sharma R. Correlation of individual lipid fraction with carotid intima-media thickness in young (<40yrs) coronary artery disease patients. Indian Heart J 2015. [DOI: 10.1016/j.ihj.2015.10.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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90
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Bhatia MS, Srivastava S, Gautam P, Saha R, Kaur J. Burden Assessment, Psychiatric Morbidity, and Their Correlates in Caregivers of Patients with Intellectual Disability. East Asian Arch Psychiatry 2015; 25:159-163. [PMID: 26764290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE Intellectual disability in a child places great stress on a family and caregiver and this leads to significant socio-occupational dysfunction and impaired quality of life for caregivers. This study aimed to assess socio-demographic characteristics, burden, and psychiatric morbidity of the caregivers of persons with intellectual disability, as well as to determine the variables that correlated with burden and psychiatric morbidity. METHODS An observational study was carried out in an outpatient psychiatric unit of a tertiary care teaching hospital in India from October 2014 to April 2015. A total of 100 caregivers of intellectually impaired individuals were assessed for burden and psychiatric morbidity. RESULTS In all, 39% of the caregivers had a high burden score, 46% perceived mild-to-moderate burden severity, and 15% perceived no to mild burden. Mild-to-moderate depressive symptoms were present in 23% and 16% had severe-to-extremely severe depressive symptoms. Mild-to-moderate anxiety symptoms were evident in 19% of caregivers and a further 19% had severe-to-extremely severe anxiety symptoms. CONCLUSION Routine assessment of burden and psychiatric morbidity in the caregiver will help to reduce their burden and thus help them care for their children more appropriately and efficiently.
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Affiliation(s)
- M S Bhatia
- Department of Psychiatry, University College of Medical Sciences & GTB Hospital, Dilshad Garden, Delhi, India
| | - S Srivastava
- Department of Psychiatry, University College of Medical Sciences & GTB Hospital, Dilshad Garden, Delhi, India
| | - P Gautam
- Department of Psychiatry, University College of Medical Sciences & GTB Hospital, Dilshad Garden, Delhi, India
| | - R Saha
- Department of Psychiatry, University College of Medical Sciences & GTB Hospital, Dilshad Garden, Delhi, India
| | - J Kaur
- Department of Psychiatry, University College of Medical Sciences & GTB Hospital, Dilshad Garden, Delhi, India
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91
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Srivastava N, Singh BN, Srivastava A, Khan AR, Srivastava S, Sharma A, Rawat AKS. Evaluation of Phenolic Content Recoveries in Hydrolyzed Extracts of Bergenia ciliata Using RP-HPLC, GC–MS after Silylation, and Validation through Antioxidant Potential. J LIQ CHROMATOGR R T 2015. [DOI: 10.1080/10826076.2015.1091012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Nishi Srivastava
- Pharmacognosy and Ethnopharmacology Division, CSIR-National Botanical Research Institute, Lucknow, India
- Department of Chemistry, Integral University, Lucknow, India
| | - B. N. Singh
- Pharmacognosy and Ethnopharmacology Division, CSIR-National Botanical Research Institute, Lucknow, India
| | - A. Srivastava
- Pharmacognosy and Ethnopharmacology Division, CSIR-National Botanical Research Institute, Lucknow, India
| | - A. R. Khan
- Department of Chemistry, Integral University, Lucknow, India
| | - S. Srivastava
- Pharmacognosy and Ethnopharmacology Division, CSIR-National Botanical Research Institute, Lucknow, India
| | - A. Sharma
- Central Instrument Facility, CSIR-National Botanical Research Institute, Lucknow, India
| | - A. K. S. Rawat
- Pharmacognosy and Ethnopharmacology Division, CSIR-National Botanical Research Institute, Lucknow, India
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92
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Kao PC, Srivastava S, Higginson JS, Agrawal SK, Scholz JP. Short-term Performance-based Error-augmentation versus Error-reduction Robotic Gait Training for Individuals with Chronic Stroke: A Pilot Study. Phys Med Rehabil Int 2015; 2:1066. [PMID: 27336075 PMCID: PMC4914051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The success of locomotion training with robotic exoskeletons requires identifying control algorithms that effectively retrain gait patterns in neurologically impaired individuals. Here we report how the two training paradigms, performance-based error-augmentation versus error-reduction, modified walking patterns in four chronic post-stroke individuals as a proof-of-concept for future locomotion training following stroke. Stroke subjects were instructed to match a prescribed walking pattern template derived from neurologically intact individuals. Target templates based on the spatial paths of lateral ankle malleolus positions during walking were created for each subject. Robotic forces were applied that either decreased (error-reduction) or increased (error-augmentation) the deviation between subjects' instantaneous malleolus positions and their target template. Subjects' performance was quantified by the amount of deviation between their actual and target malleolus paths. After the error-reduction training, S1 showed a malleolus path with reduced deviation from the target template by 16%. In contrast, S4 had a malleolus path further away from the template with increased deviation by 12%. After the error-augmentation training, S2 had a malleolus path greatly approximating the template with reduced deviation by 58% whereas S3 walked with higher steps than his baseline with increased deviation by 37%. These findings suggest that an error-reduction force field has minimal effects on modifying subject's gait patterns whereas an error-augmentation force field may promote a malleolus path either approximating or exceeding the target walking template. Future investigation will need to evaluate the long-term training effects on over-ground walking and functional capacity.
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Affiliation(s)
- P C Kao
- Department of Physical Therapy, University of Massachusetts Lowell, USA
| | - S Srivastava
- Department of Health Sciences and Research, Medical University of South Carolina, USA
| | - J S Higginson
- Department of Mechanical Engineering, University of Delaware, USA
| | - S K Agrawal
- Department of Mechanical Engineering, Columbia University, USA
| | - J P Scholz
- Biomechanics and Movement Science Program, University of Delaware, USA
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Misra A, Goswami A, Sing Babu P, Srivastava S, Pandit VS. Studies on space charge neutralization and emittance measurement of beam from microwave ion source. Rev Sci Instrum 2015; 86:113301. [PMID: 26628123 DOI: 10.1063/1.4934868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A 2.45 GHz microwave ion source together with a beam transport system has been developed at VECC to study the problems related with the injection of high current beam into a compact cyclotron. This paper presents the results of beam profile measurement of high current proton beam at different degrees of space charge neutralisation with the introduction of neon gas in the beam line using a fine leak valve. The beam profiles have been measured at different pressures in the beam line by capturing the residual gas fluorescence using a CCD camera. It has been found that with space charge compensation at the present current level (∼5 mA at 75 keV), it is possible to reduce the beam spot size by ∼34%. We have measured the variation of beam profile as a function of the current in the solenoid magnet under the neutralised condition and used these data to estimate the rms emittance of the beam. Simulations performed using equivalent Kapchinsky-Vladimirsky beam envelope equations with space charge neutralization factor are also presented to interpret the experimental results.
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Affiliation(s)
- Anuraag Misra
- Variable Energy Cyclotron Centre, 1-AF, Bidhannagar, Kolkata 700 064, India
| | - A Goswami
- Variable Energy Cyclotron Centre, 1-AF, Bidhannagar, Kolkata 700 064, India
| | - P Sing Babu
- Variable Energy Cyclotron Centre, 1-AF, Bidhannagar, Kolkata 700 064, India
| | - S Srivastava
- Variable Energy Cyclotron Centre, 1-AF, Bidhannagar, Kolkata 700 064, India
| | - V S Pandit
- Variable Energy Cyclotron Centre, 1-AF, Bidhannagar, Kolkata 700 064, India
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Tharu MB, Harries AD, Goel S, Srivastava S, Kumar AMV, Adhikari M, Shrestha B, Maharjan B, Khadka H. Screening retreatment tuberculosis patients for drug resistance in mid-west Nepal: how well are we doing? Public Health Action 2015; 4:60-5. [PMID: 26423764 DOI: 10.5588/pha.13.0104] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2013] [Accepted: 02/20/2014] [Indexed: 11/10/2022] Open
Abstract
SETTING Multidrug-resistant tuberculosis (MDR-TB, defined as resistance to isoniazid and rifampicin) is poorly detected in Nepal; one reason may be poor functioning of culture and drug susceptibility testing (CDST) services for retreatment tuberculosis (TB) patients. OBJECTIVES To determine, among retreatment TB patients in mid-west Nepal, 1) the number of patients registered for treatment between July 2011 and July 2012; 2) the number submitting sputum specimens for CDST to the Central Reference Laboratory (CRL), Kathmandu, along with the results; and 3) the length of time for submission and receipt of specimens. DESIGN Retrospective cohort study involving the review of treatment and laboratory registers from the Nepalgunj TB Referral Centre and the CRL. RESULTS Of 431 retreatment patients, 66 (15%) submitted sputum samples, of which 63 reached the CRL. Of these, 39 (62%) were culture-positive; 13 (33%) patients had MDR-TB. The CDST results of 19 patients were received back at the TB Referral Centre. The median turnaround time from sending specimens to receipt of results at the TB Referral Centre was 119 days. CONCLUSION Less than 10% of retreatment TB patients in mid-West Nepal had CDST results recorded, leading to the underdiagnosis of MDR-TB in the region. Urgent solutions are needed to rectify this problem.
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Affiliation(s)
- M B Tharu
- International Nepal Fellowship, Pokhara, Nepal
| | - A D Harries
- International Union Against Tuberculosis and Lung Disease (The Union), Paris, France ; London School of Hygiene & Tropical Medicine, London, UK
| | - S Goel
- School of Public Health, Post Graduate Institute of Medical Education & Research, Chandigarh, India
| | - S Srivastava
- Public Health Foundation of India, New Delhi, India
| | - A M V Kumar
- The Union, South-East Asia Regional Office, New Delhi, India
| | - M Adhikari
- International Nepal Fellowship, Pokhara, Nepal
| | - B Shrestha
- Nepal Anti Tuberculosis Association, GENETUP Central Reference Laboratory, Kathmandu, Nepal
| | - B Maharjan
- Nepal Anti Tuberculosis Association, GENETUP Central Reference Laboratory, Kathmandu, Nepal
| | - H Khadka
- International Nepal Fellowship, Pokhara, Nepal
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95
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Chang YP, Duo L, Kumar AMV, Achanta S, Xue HM, Satyanarayana S, Ananthakrishnan R, Srivastava S, Qi W, Hu SY. Retention and HIV seroconversion among drug users on methadone maintenance treatment in Yunnan, China. Public Health Action 2015; 4:28-34. [PMID: 26423758 DOI: 10.5588/pha.13.0101] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Accepted: 01/17/2014] [Indexed: 11/10/2022] Open
Abstract
SETTING Thirteen methadone maintenance treatment (MMT) clinics across Yunnan, the province with the highest human immunodeficiency virus (HIV) burden in China. OBJECTIVES To determine, among HIV-negative participants on MMT, the proportion lost to follow-up (defined as those who missed the 6-monthly follow-up examination), factors associated with loss to follow-up (LFU), HIV seroconversion rate and factors associated with seroconversion. DESIGN Prospective cohort study from October 2008 to April 2011. All participants were administered a pre-tested structured questionnaire to capture associated factors and offered HIV testing every 6 months. χ(2) test and log-binomial regression were used for data analysis. RESULTS Of 1146 participants, 541 (47%) were lost to follow-up in 2.5 years. Factors associated with higher LFU proportion include <6 months of previous MMT, inconvenient location of the MMT clinic and average methadone dose ⩽60 mg/day, with adjusted relative risks (RRs) of respectively 1.4 (95%CI 1.2-1.5), 1.2 (95%CI 1.0-1.4) and 1.1 (95%CI 1.0-1.3). The overall HIV seroconversion rate was 6.6 (95%CI 3.7-11.0) per 1000 person-years. Not living with a partner contributed to higher HIV rates, with an adjusted RR of 3.6 (95%CI 1.0-12.8). CONCLUSION The retention rate of MMT participants in Yunnan was not satisfactory. Decentralising service delivery in the community and making directly observed treatment more convenient has the potential to improve retention.
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Affiliation(s)
- Y-P Chang
- The Red Cross Hospital of Yunnan Province, Kunming, China
| | - L Duo
- The Red Cross Hospital of Yunnan Province, Kunming, China ; HIV/AIDS Asia Regional Programme, Kunming, China
| | - A M V Kumar
- International Union Against Tuberculosis and Lung Disease, South-East Asia Regional Office, New Delhi, India
| | - S Achanta
- World Health Organization India Country Office, New Delhi, India
| | - H-M Xue
- HIV/AIDS Asia Regional Programme, Kunming, China
| | - S Satyanarayana
- International Union Against Tuberculosis and Lung Disease, South-East Asia Regional Office, New Delhi, India
| | | | - S Srivastava
- Public Health Foundation of India, New Delhi, India
| | - W Qi
- Tianjin Centers for Disease Control and Prevention, Tianjin, China
| | - S-Y Hu
- School of Public Health, Fudan University, Shanghai, China
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Pant A, Asthana J, Yadav AK, Rathor L, Srivastava S, Gupta MM, Pandey R. Verminoside mediates life span extension and alleviates stress in Caenorhabditis elegans. Free Radic Res 2015; 49:1384-92. [PMID: 26189547 DOI: 10.3109/10715762.2015.1075017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The discovery of bioactive molecules modulating aging in living organism promotes development of natural therapeutics for curing age-related afflictions. The progression in age-related disorders can be attributed to increment in intracellular reactive oxygen species (ROS) and oxidative stress level. To this end, we isolated an iridoid verminoside (VMS) from Stereospermum suaveolens (Roxb.) DC. and evaluated its effect on Caenorhabditis elegans. The present study delineates VMS-mediated alteration of intracellular ROS, oxidative stress, and life span in C. elegans. The different tested doses of VMS (5 μM, 25 μM, and 50 μM) were able to enhance ROS scavenging and extend mean life span in C. elegans. The maximal life span extension was observed in 25 μM VMS, that is, 20.79% (P < 0.0001) followed by 9.84% (P < 0.0001) in 5 μM VMS and 8.54% (P < 0.0001) in 50 μM VMS. VMS was able to alleviate juglone-induced oxidative stress and enhanced thermotolerance in worms. The stress-modulating and ROS-scavenging potential of VMS was validated by increment in mean survival by 29.54% (P < 0.0001) in VMS-treated oxidative stress hypersensitive mev-1 mutant strain. Furthermore, VMS modulates expression of DAF-16 (a FoxO transcription factor) promoting stress resistance and longevity. Altogether, our results suggest that VMS attenuates intracellular ROS and stress (oxidative and thermal) level promoting longevity. The longevity and stress modulation can be attributed to VMS-mediated alterations in daf-16 expression which regulates insulin signaling pathway. This study opens doors for development of phytomolecule-based therapeutics for prolonging life span and managing age-related severe disorders.
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Affiliation(s)
- A Pant
- a Microbial Technology and Nematology Department,CSIR-Central Institute of Medicinal and Aromatic Plants , Lucknow , India
| | - J Asthana
- a Microbial Technology and Nematology Department,CSIR-Central Institute of Medicinal and Aromatic Plants , Lucknow , India
| | - A K Yadav
- b Analytical Chemistry Division, CSIR-Central Institute of Medicinal and Aromatic Plants , Lucknow , India
| | - L Rathor
- a Microbial Technology and Nematology Department,CSIR-Central Institute of Medicinal and Aromatic Plants , Lucknow , India
| | - S Srivastava
- a Microbial Technology and Nematology Department,CSIR-Central Institute of Medicinal and Aromatic Plants , Lucknow , India
| | - M M Gupta
- b Analytical Chemistry Division, CSIR-Central Institute of Medicinal and Aromatic Plants , Lucknow , India
| | - R Pandey
- a Microbial Technology and Nematology Department,CSIR-Central Institute of Medicinal and Aromatic Plants , Lucknow , India
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Aggarwal H, Kaur H, Saklani R, Saba N, Choudhary S, Dogra S, Srivastava S, Mathur R, Gupta S. Prevalence of obesity and associated hypertension and diabetes in Delhi, metropolitan city of India. Indian Journal of Medical Specialities 2015. [DOI: 10.1016/j.injms.2015.06.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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98
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Srivastava S, Andersen A, Cheng C, Das I. TU-G-BRD-03: IMRT Dosimetry Differences in An Institution with Community and Academic Model. Med Phys 2015. [DOI: 10.1118/1.4925738] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Srivastava S, Andersen A, Lulu B, Cheng C, Das I. SU-E-T-366: Estimation of Whole Body Dose From Cranial Irradiation From C and Perfexion Series Gamma Knife Units. Med Phys 2015. [DOI: 10.1118/1.4924727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Affiliation(s)
- S Srivastava
- Diet and Cancer Branch, National Cancer Institute, National Institute of Health, Bethesda, Md
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