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Taunk K, Paul D, Dabhi R, Venkatesh C, Jajula S, Naik V, Tamhankar A, Naiya T, Kumar Santra M, Rapole S. A single step and rapid protein extraction protocol developed for cell lines and tissues: Compatible for gel based and gel free proteomic approaches. Methods 2023; 220:29-37. [PMID: 37918646 DOI: 10.1016/j.ymeth.2023.10.011] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 10/18/2023] [Accepted: 10/30/2023] [Indexed: 11/04/2023] Open
Abstract
Proteins are crucial research molecules in modern biology. Almost every biological research area needs protein-based assays to answer the research questions. The study of the total protein content of a biological sample known as Proteomics, is one of the highly rated qualitative and quantitative approach to address numerous biological problems including clinical research. The key step to successfully generate high quality proteomics data is the efficient extraction of proteins from biological samples. Although different methods are in use for protein extraction from a wide variety of samples, however, because of their prolonged protocol and multiple steps involved, final protein yield is sacrificed. Here, we have shown the development of a simple single step method for extraction of proteins from mammalian cell lines as well as tissue samples in an effective and reproducible manner. This method is based on lysis of samples directly in a modified lysis buffer without CHAPS (7 M Urea, 2 M Thiourea, and 10 mM Tris-Cl; pH 8.5) that is compatible with gel based and gel free approaches. This developed protocol is reliable and should be useful for a wide range of proteomic studies involving various biological samples.
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Affiliation(s)
- Khushman Taunk
- National Centre for Cell Science, Ganeshkhind, Pune 411007, Maharashtra, India; Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, West Bengal, Haringhata, West Bengal, India
| | - Debasish Paul
- National Centre for Cell Science, Ganeshkhind, Pune 411007, Maharashtra, India
| | - Raju Dabhi
- National Centre for Cell Science, Ganeshkhind, Pune 411007, Maharashtra, India
| | | | - Saikiran Jajula
- National Centre for Cell Science, Ganeshkhind, Pune 411007, Maharashtra, India
| | - Venkateshwarlu Naik
- National Centre for Cell Science, Ganeshkhind, Pune 411007, Maharashtra, India
| | - Anup Tamhankar
- Department of Surgical Oncology, Deenanath Mangeshkar Hospital and Research Centre, Erandawne, Pune 411004, Maharashtra, India
| | - Tufan Naiya
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, West Bengal, Haringhata, West Bengal, India
| | - Manas Kumar Santra
- National Centre for Cell Science, Ganeshkhind, Pune 411007, Maharashtra, India.
| | - Srikanth Rapole
- National Centre for Cell Science, Ganeshkhind, Pune 411007, Maharashtra, India.
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Peters DR, Schnell JL, Kinney PL, Naik V, Horton DE. Public Health and Climate Benefits and Trade-Offs of U.S. Vehicle Electrification. Geohealth 2020; 4:e2020GH000275. [PMID: 33094205 PMCID: PMC7567144 DOI: 10.1029/2020gh000275] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/20/2020] [Accepted: 08/05/2020] [Indexed: 06/11/2023]
Abstract
Vehicle electrification is a common climate change mitigation strategy, with policymakers invoking co-beneficial reductions in carbon dioxide (CO2) and air pollutant emissions. However, while previous studies of U.S. electric vehicle (EV) adoption consistently predict CO2 mitigation benefits, air quality outcomes are equivocal and depend on policies assessed and experimental parameters. We analyze climate and health co-benefits and trade-offs of six U.S. EV adoption scenarios: 25% or 75% replacement of conventional internal combustion engine vehicles, each under three different EV-charging energy generation scenarios. We transfer emissions from tailpipe to power generation plant, simulate interactions of atmospheric chemistry and meteorology using the GFDL-AM4 chemistry climate model, and assess health consequences and uncertainties using the U.S. Environmental Protection Agency Benefits Mapping Analysis Program Community Edition (BenMAP-CE). We find that 25% U.S. EV adoption, with added energy demand sourced from the present-day electric grid, annually results in a ~242 M ton reduction in CO2 emissions, 437 deaths avoided due to PM2.5 reductions (95% CI: 295, 578), and 98 deaths avoided due to lesser ozone formation (95% CI: 33, 162). Despite some regions experiencing adverse health outcomes, ~$16.8B in damages avoided are predicted. Peak CO2 reductions and health benefits occur with 75% EV adoption and increased emission-free energy sources (~$70B in damages avoided). When charging-electricity from aggressive EV adoption is combustion-only, adverse health outcomes increase substantially, highlighting the importance of low-to-zero emission power generation for greater realization of health co-benefits. Our results provide a more nuanced understanding of the transportation sector's climate change mitigation-health impact relationship.
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Affiliation(s)
- D. R. Peters
- Program in Environmental SciencesNorthwestern UniversityEvanstonILUSA
- Environmental Defense FundAustinTXUSA
| | - J. L. Schnell
- Department of Earth and Planetary Sciences and Institute for Sustainability and EnergyNorthwestern UniversityEvanstonILUSA
- Cooperative Institute for Research in Environmental SciencesUniversity of Colorado Boulder NOAA/Global Systems LaboratoryBoulderCOUSA
| | - P. L. Kinney
- Department of Environmental HealthBoston University School of Public HealthBostonMAUSA
| | - V. Naik
- NOAA Geophysical Fluid Dynamics LaboratoryPrincetonNJUSA
| | - D. E. Horton
- Department of Earth and Planetary Sciences and Institute for Sustainability and EnergyNorthwestern UniversityEvanstonILUSA
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More TH, Taware R, Taunk K, Chanukuppa V, Naik V, Mane A, Rapole S. Investigation of altered urinary metabolomic profiles of invasive ductal carcinoma of breast using targeted and untargeted approaches. Metabolomics 2018; 14:107. [PMID: 30830381 DOI: 10.1007/s11306-018-1405-1] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 08/01/2018] [Indexed: 01/22/2023]
Abstract
INTRODUCTION Invasive ductal carcinoma (IDC) is a type of breast cancer, usually detected in advanced stages due to its asymptomatic nature which ultimately leads to low survival rate. Identification of urinary metabolic adaptations induced by IDC to understand the disease pathophysiology and monitor therapy response would be a helpful approach in clinical settings. Moreover, its non-invasive and cost effective strategy better suited to minimize apprehension among high risk population. OBJECTIVE This study aims toward investigating the urinary metabolic alterations of IDC by targeted (LC-MRM/MS) and untargeted (GC-MS) approaches for the better understanding of the disease pathophysiology and monitoring therapy response. METHODS Urinary metabolic alterations of IDC subjects (63) and control subjects (63) were explored by targeted (LC-MRM/MS) and untargeted (GC-MS) approaches. IDC specific urinary metabolomics signature was extracted by applying both univariate and multivariate statistical tools. RESULTS Statistical analysis identified 39 urinary metabolites with the highest contribution to metabolomic alterations specific to IDC. Out of which, 19 metabolites were identified from targeted LC-MRM/MS analysis, while 20 were identified from the untargeted GC-MS analysis. Receiver operator characteristic (ROC) curve analysis evidenced 6 most discriminatory metabolites from each type of approach that could differentiate between IDC subjects and controls with higher sensitivity and specificity. Furthermore, metabolic pathway analysis depicted several dysregulated pathways in IDC including sugar, amino acid, nucleotide metabolism, TCA cycle etc. CONCLUSIONS: Overall, this study provides valuable inputs regarding altered urinary metabolites which improved our knowledge on urinary metabolomic alterations induced by IDC. Moreover, this study identified several dysregulated metabolic pathways which offer further insight into the disease pathophysiology.
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Affiliation(s)
- Tushar H More
- Proteomics Lab, National Centre for Cell Science, Ganeshkhind, Pune, 411007, MH, India
- Savitribai Phule Pune University, Ganeshkhind, Pune, 411007, MH, India
| | - Ravindra Taware
- Proteomics Lab, National Centre for Cell Science, Ganeshkhind, Pune, 411007, MH, India
| | - Khushman Taunk
- Proteomics Lab, National Centre for Cell Science, Ganeshkhind, Pune, 411007, MH, India
| | - Venkatesh Chanukuppa
- Proteomics Lab, National Centre for Cell Science, Ganeshkhind, Pune, 411007, MH, India
- Savitribai Phule Pune University, Ganeshkhind, Pune, 411007, MH, India
| | - Venkateshwarlu Naik
- Proteomics Lab, National Centre for Cell Science, Ganeshkhind, Pune, 411007, MH, India
| | - Anupama Mane
- Grant Medical Foundation, Ruby Hall Clinic, Pune, 411001, MH, India
| | - Srikanth Rapole
- Proteomics Lab, National Centre for Cell Science, Ganeshkhind, Pune, 411007, MH, India.
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Dhal A, Mukherjee G, Bhattacharjee M, Naik V, Mukhopadhyay S, Pandit D, Pal S, Mondal D, Karmakar P, Roy T, Asgar M, Bhattacharya S, Bhattacharyya S, Bhattacharya C, Banerjee S, Chakrabarti A. Decay measurements of 43K( β−) 43Ca by HRS and TAS. EPJ Web Conf 2017. [DOI: 10.1051/epjconf/201714610013] [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: 11/14/2022] Open
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Abstract
This case represents the development of dizziness, palpitation, tightness in chest, flushing, and tremor on consumption of a single dose of tapentadol (100 mg) for acute lower back pain. The patient was admitted in the intensive cardiac care unit for continuous monitoring. At admission, electrocardiogram showed tachycardia (140/min) along with ST segment elevation in second chest lead (V2). The patient was monitored and advised not to take further doses of tapentadol. He was discharged after 36 hours of admission. Tapentadol should be used cautiously in patients with cardiovascular diseases and receiving sympathomimetic drugs.
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Affiliation(s)
| | | | | | - C B Tripathi
- Department of Pharmacology, Government Medical College, Bhavnagar, Gujarat, India
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Velho-Pereira S, Noronha A, Mathias A, Zakane R, Naik V, Naik P, Salker A, Naik S. Antibacterial action of doped CoFe2O4 nanocrystals on multidrug resistant bacterial strains. Materials Science and Engineering: C 2015; 52:282-7. [DOI: 10.1016/j.msec.2015.03.046] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2014] [Revised: 02/24/2015] [Accepted: 03/23/2015] [Indexed: 11/17/2022]
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Abstract
Yolk sac germ cell tumours are rare in post-menopausal patients. Most involve mixed yolk sac tumours Consider diagnosis in patients with a pelvic–abdominal mass and raised AFP
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Affiliation(s)
- V L Parker
- Department of Obstetrics and Gynaecology, Barnsley Hospital, UK
| | - P Sanderson
- Department of Obstetrics and Gynaecology, Barnsley Hospital, UK
| | - V Naik
- Department of Pathology, Barnsley Hospital, UK
| | - C Quincey
- Department of Pathology, Barnsley Hospital, UK
| | - K Farag
- Department of Obstetrics and Gynaecology, Barnsley Hospital, UK
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Petrie J, Easton S, Naik V, Lockie C, Brett SJ, Stümpfle R. Hospital costs of out-of-hospital cardiac arrest patients treated in intensive care; a single centre evaluation using the national tariff-based system. BMJ Open 2015; 5:e005797. [PMID: 25838503 PMCID: PMC4390724 DOI: 10.1136/bmjopen-2014-005797] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVES There is a scarcity of literature reporting hospital costs for treating out of hospital cardiac arrest (OOHCA) survivors, especially within the UK. This is essential for assessment of cost-effectiveness of interventions necessary to allow just allocation of resources within the National Health Service. We set out primarily to calculate costs stratified against hospital survival and neurological outcomes. Secondarily, we estimated cost effectiveness based on estimates of survival and utility from previous studies to calculate costs per quality adjusted life year (QALY). SETTING We performed a single centre (London) retrospective review of in-hospital costs of patients admitted to the intensive care unit (ICU) following return of spontaneous circulation (ROSC) after OOHCA over 18 months from January 2011 (following widespread introduction of targeted temperature management and primary percutaneous intervention). PARTICIPANTS Of 69 successive patients admitted over an 18-month period, survival and cerebral performance category (CPC) outcomes were obtained from review of databases and clinical notes. The Trust finance department supplied ICU and hospital costs using the Payment by Results UK system. RESULTS Of those patients with ROSC admitted to ICU, survival to hospital discharge (any CPC) was 33/69 (48%) with 26/33 survivors in CPC 1-2 at hospital discharge. Cost per survivor to hospital discharge (including total cost of survivors and non-survivors) was £50,000, cost per CPC 1-2 survivor was £65,000. Cost and length of stay of CPC 1-2 patients was considerably lower than CPC 3-4 patients. The majority of the costs (69%) related to intensive care. Estimated cost per CPC 1-2 survivor per QALY was £16,000. CONCLUSIONS The costs of in-hospital patient care for ICU admissions following ROSC after OOHCA are considerable but within a reasonable threshold when assessed from a QALY perspective.
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Affiliation(s)
- J Petrie
- Centre for Perioperative Medicine and Critical Care Research, London, UK
| | - S Easton
- Finance Department, Imperial College Healthcare NHS Trust, Hammersmith Hospital, London, UK
| | - V Naik
- Finance Department, Imperial College Healthcare NHS Trust, Hammersmith Hospital, London, UK
| | - C Lockie
- Centre for Perioperative Medicine and Critical Care Research, London, UK
| | - S J Brett
- Centre for Perioperative Medicine and Critical Care Research, London, UK
| | - R Stümpfle
- Centre for Perioperative Medicine and Critical Care Research, London, UK
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Rehmani K, Raju K, Patnaik S, Naik V, Rajagopalan R, Pawar S, Mahajan M, Rayani B, Murthy S, Rao T. S. 125. Minimally Invasive Esophagectomy (MIE) – adequacy and short term perioperative outcomes – our experience. Eur J Surg Oncol 2014. [DOI: 10.1016/j.ejso.2014.08.121] [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: 11/25/2022] Open
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Hariprasad K, Prabhu N, Acharya S, Nagappa AN, Naik V. A Comparative Clinical Evaluation of Trayodashanga Guggulu and Mustadiyapana Yoga Basti in Gridhrasi. Value Health 2014; 17:A771. [PMID: 27202843 DOI: 10.1016/j.jval.2014.08.319] [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] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- K Hariprasad
- Muniyal Institute of Ayurveda Medical Sciences, Muniyal, India
| | - N Prabhu
- Manipal Univiersity, Manipal, India
| | - S Acharya
- Muniyal Institute of Ayurveda Medical Sciences, Muniyal, India
| | - A N Nagappa
- Department of Pharmacy Management, Manipal College of Pharmaceutical Sciences, Manipal University, Manipal, India
| | - V Naik
- Manipal Univiersity, Manipal, India
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Gopalakrishnan H, Acharya S, Naik V, Nagappa AN. Efficacy of Ayurvedic Formulation in The Management of Essential Hypertension. Value Health 2014; 17:A758. [PMID: 27202768 DOI: 10.1016/j.jval.2014.08.242] [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] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
| | - S Acharya
- Muniyal Institute of Ayurveda Medical Sciences, Muniyal, India
| | - V Naik
- Manipal Univiersity, Manipal, India
| | - A N Nagappa
- Department of Pharmacy Management, Manipal College of Pharmaceutical Sciences, Manipal University, Manipal, India
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Devpura S, Naik R, Thakur J, Naik V, Sethi S, Sarkar F, Sakr W, Poulik J, Rabah R, Klein M, Barton K, Siddiqui F, Chetty I. TU-A-WAB-03: BEST IN PHYSICS (JOINT IMAGING-THERAPY)-Application of Raman Spectroscopy for Diagnosis of Adult and Pediatric Cancers. Med Phys 2013. [DOI: 10.1118/1.4815337] [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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Naik V, Chakrabarti A, Bhattacharjee M, Karmakar P, Bandyopadhyay A, Bhattacharjee S, Dechoudhury S, Mondal M, Pandey HK, Lavanyakumar D, Mandi TK, Dutta DP, Kundu Roy T, Bhowmick D, Sanyal D, Srivastava SCL, Ray A, Ali MS. A gas-jet transport and catcher technique for on-line production of radioactive ion beams using an electron cyclotron resonance ion-source. Rev Sci Instrum 2013; 84:033301. [PMID: 23556809 DOI: 10.1063/1.4792594] [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: 06/02/2023]
Abstract
Radioactive ion beams (RIB) have been produced on-line, using a gas-jet recoil transport coupled Electron Cyclotron Resonance (ECR) ion-source at the VECC-RIB facility. Radioactive atoms∕molecules carried through the gas-jet were stopped in a catcher placed inside the ECR plasma chamber. A skimmer has been used to remove bulk of the carrier gas at the ECR entrance. The diffusion of atoms∕molecules through the catcher has been verified off-line using stable isotopes and on-line through transmission of radioactive reaction products. Beams of (14)O (71 s), (42)K (12.4 h), (43)K (22.2 h), and (41)Ar (1.8 h) have been produced by bombarding nitrogen and argon gas targets with proton and alpha particle beams from the K130 cyclotron at VECC. Typical measured intensity of RIB at the separator focal plane is found to be a few times 10(3) particles per second (pps). About 3.2 × 10(3) pps of 1.4 MeV (14)O RIB has been measured after acceleration through a radiofrequency quadrupole linac. The details of the gas-jet coupled ECR ion-source and RIB production experiments are presented along with the plans for the future.
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Affiliation(s)
- V Naik
- Variable Energy Cyclotron Centre, Sector-1, Block-AF, Bidhan Nagar, Kolkata 700064, India.
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Bellad MB, Goudar SS, Edlavitch SA, Mahantshetti NS, Naik V, Hemingway-Foday JJ, Gupta M, Nalina HR, Derman R, Moss N, Kodkany BS. Consanguinity, prematurity, birth weight and pregnancy loss: a prospective cohort study at four primary health center areas of Karnataka, India. J Perinatol 2012; 32:431-7. [PMID: 21852769 DOI: 10.1038/jp.2011.115] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To determine whether consanguinity adversely influences pregnancy outcome in South India, where consanguinity is a common means of family property retention. STUDY DESIGN Data were collected from a prospective cohort of 647 consenting women, consecutively registered for antenatal care between 14 and 18 weeks gestation, in Belgaum district, Karnataka in 2005. Three-generation pedigree charts were drawn for consanguineous participants. χ (2)-Test and Student's t-test were used to assess categorical and continuous data, respectively, using SPSS version 14. Multivariate logistic regression adjusted for confounding variables. RESULT Overall, 24.1% of 601 women with singleton births and outcome data were consanguineous. Demographic characteristics between study groups were similar. Non-consanguineous couples had fewer stillbirths (2.6 vs 6.9% P=0.017; adjusted P=0.050), miscarriages (1.8 vs 4.1%, P=0.097; adjusted P=0.052) and lower incidence of birth weight <2500 g (21.8 vs 29.5%, P=0.071, adjusted P=0.044). Gestation <37 weeks was 6.2% in both the groups. Adjusted for consanguinity and other potential confounders, age <20 years was protective of stillbirth (P=0.01), pregnancy loss (P=0.023) and preterm birth (P=0.013), whereas smoking (P=0.015) and poverty (P=0.003) were associated with higher rates of low birth weight. CONCLUSION Consanguinity significantly increases pregnancy loss and birth weight <2500 g.
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Affiliation(s)
- M B Bellad
- Department of Medical Education, Jawaharlal Nehru Medical College, Belgaum, India
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Abstract
Isolated caecal perforation following pancreatitis is a rare event. We report a case of severe non-necrotising pancreatitis complicated by caecal perforation that was managed successfully.
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Price J, Naik V, Boodhwani M, Brandys T, Hendry P, Lam B. 376 The impact of after-hours simulator practice on performance of vascular anastomosis during surgical training: A randomized trial. Can J Cardiol 2011. [DOI: 10.1016/j.cjca.2011.07.317] [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: 10/16/2022] Open
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Karmakar P, Bhattacharjee S, Naik V, Sinha AK, Chakrabarti A. Coulomb explosion sputtering of selectively oxidized Si. J Phys Condens Matter 2010; 22:175005. [PMID: 21393663 DOI: 10.1088/0953-8984/22/17/175005] [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: 05/30/2023]
Abstract
We have studied the sputtering of a unique system comprising of coexisting silicon and silicon oxide surfaces due to the impact of multiply charged Ar(q+) ions. Such surfaces are produced by oblique angle oxygen ion bombardment on Si(100), which results in one side oxidized ripple formation due to preferential oxygen implantation. It is observed by atomic force microscopy and conducting atomic force microscopy studies that the higher the potential energy of the Ar(q+) ion, the higher the sputtering yield of the nonconducting (oxide) side of the ripple as compared to the semiconducting side while ensuring an identical irradiation and measurement condition. It also shows experimentally the potential of highly charged ions in the gentle cleaning or tailoring of nanostructures. The results are explained in terms of the Coulomb explosion model, where potential sputtering depends on the conductivity of the ion impact sites.
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Affiliation(s)
- P Karmakar
- RIB Laboratory, Variable Energy Cyclotron Centre, 1/AF, Bidhannagar, Kolkata 700 064, India.
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Dechoudhury S, Naik V, Mondal M, Chatterjee A, Pandey HK, Mandi TK, Bandyopadhyay A, Karmakar P, Bhattacharjee S, Chouhan PS, Ali S, Srivastava SCL, Chakrabarti A. Design and development of a radio frequency quadrupole linac postaccelerator for the Variable Energy Cyclotron Center rare ion beam project. Rev Sci Instrum 2010; 81:023301. [PMID: 20192486 DOI: 10.1063/1.3280175] [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: 05/28/2023]
Abstract
A four-rod type heavy-ion radio frequency quadrupole (RFQ) linac has been designed, constructed, and tested for the rare ion beam (RIB) facility project at VECC. Designed for cw operation, this RFQ is the first postaccelerator in the RIB beam line. It will accelerate A/q < or = 14 heavy ions coming from the ion source to the energy of around 100 keV/u for subsequent acceleration in a number of Interdigital H-Linac. Operating at a resonance frequency of 37.83 MHz, maximum intervane voltage of around 54 kV will be needed to achieve the final energy over a vane length of 3.12 m for a power loss of 35 kW. In the first beam tests, transmission efficiency of about 90% was measured at the QQ focus after the RFQ for O(5+) beam. In this article the design of the RFQ including the effect of vane modulation on the rf characteristics and results of beam tests will be presented.
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Affiliation(s)
- S Dechoudhury
- Variable Energy Cyclotron Center, 1/AF, Bidhan Nagar, Kolkata 700064, India
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Naik V, Kini R, Shetty A. Rapidly Proliferating Nodular Fasciitis of the Maxillary Alveolus Extending into Antrum. J Indian Acad Oral Med Radiol 2010. [DOI: 10.4103/0972-1363.166989] [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: 02/25/2023] Open
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Rakha EA, Naik V, Chaudry Z, Baldwin D, Soomro IN. Cytological assessment of conventional transbronchial fine needle aspiration of lymph nodes. Cytopathology 2008; 21:27-34. [DOI: 10.1111/j.1365-2303.2008.00590.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Naik V, Jonsson NN, Phillips NJ, Kaye P. 239.Sensitivity of bovine morulae and blastocysts to heat shock in vitro. Reprod Fertil Dev 2004. [DOI: 10.1071/srb04abs239] [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] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Thermotolerance of blastocysts and morulae is greater than that of zygotes. However, lower rates of pregnancy have been recorded when morulae rather than blastocysts were transferred. The aim of this study was to determine if morulae displayed lower thermotolerance than blastocysts in vitro. Embryos were produced from oocytes collected from abattoir-sourced ovaries. On Day 7 post fertilisation, embryos were classified as morulae or blasotcysts and subjected to either an increase in temperature from 39�C to 41.5�C over 1 h followed by a decrease to 39�C over 2 h (HS) or maintained at 39�C (NHS), using a water jacketed CO2 incubator. The number of embryos progressing to expanded and hatched blastocysts was recorded after 48 h further culture at 39�C. After arcsine transformation, the proportions progressing were submitted to a general linear model using adjusted sum of squares for tests of difference. Factors were embryonic stage, treatment and sire and the interaction terms of stage and sire with treatment. The Kruskall-Wallis test was also applied to the untransformed, non-parameteric data set. Non-parameteric , univariant analysis indicated non-significant effects of treatment (NHS median proportion progressing =72%, HS = 64%, P = 0.12) and of sire (NHS = 78%, HS = 64%, P = 0.168), while the effect of stage was highly significant (morulae = 35%, blastocysts = 79%, P�=�0.0000). However, according to the general linear model, treatment and stage were significant factors (F�=�5.39 and 38.3, respectively, and P�=�0.032 and 0.000, respectively) and sire approached significance (F�=�4.09, P�=�0.058). Neither of the interaction terms was significant. It was concluded that embryos, which were morulae on Day 7, were less likely to progress to expanded or hatched blastocysts and that heat shock reduced developmental progression.
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Baruah A, Naik V, Hendre PS, Rajkumar R, Rajendrakumar P, Aggarwal RK. Isolation and characterization of nine microsatellite markers from Coffea arabica L., showing wide cross-species amplifications. ACTA ACUST UNITED AC 2003. [DOI: 10.1046/j.1471-8286.2003.00544.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Maitra A, Pingle RR, Menon PS, Naik V, Gokral JS, Meherji PK. Dyslipidemia with particular regard to apolipoprotein profile in association with polycystic ovary syndrome: a study among Indian women. Int J Fertil Womens Med 2001; 46:271-7. [PMID: 11720200] [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] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
OBJECTIVE To investigate putative dyslipidemia in women with polycystic ovary syndrome (PCOS) with particular emphasis on specific parameters of atherosclerotic risk, and to assess the independent influence of obesity and hyperandrogenemia on these parameters. SUBJECTS Women investigated were among those attending the infertility clinics. Three groups of women were studied: (I) a core study group consisting of oligomenorrhoeic, chronically anovulatory women with or without obesity in whom polycystic ovaries were confirmed through ultrasound evidence, and were established to be the cause of infertility; II) a control group of non-hirsute, non-obese women with regular menstrual cycles; and (III) a group of controls consisting of women with obesity, but with normal ovarian morphology and regular menstrual cycles. METHODS All three study groups were investigated for androgen (total testosterone) and lipid-lipoprotein profile, including apolipoproteins, ApoA1 and ApoB. Retrospective analysis of the data was carried out to assess hyperandrogenism in the study group of women with PCOS as well as to investigate changes in the lipid-lipoprotein profile, particularly the measures of cardiovascular risk, ApoA1 and ApoB. RESULTS Triglycerides showed a significant increase in the PCOS group compared to controls, whereas HDL-cholesterol as well as HDL-carrying ApoA1 showed a significant decrease (P < .05). Also a significant finding was the decrease in ApoA1/ApoB ratio among the women with PCOS compared to both controls and obese women. A direct negative correlation of this decrease in ApoA1/ApoB ratio with the Body Mass Index was also confirmed in the study. Hyperandrogenemia in terms of significantly raised total testosterone levels was found in 30% of the PCOS women. However, no direct correlation of this increase with changes in lipid-lipoprotein profile could be observed. CONCLUSION The study confirms the trend toward dyslipidemia among women with PCOS, particularly in parameters associated with cardiovascular risk. A significant association of obesity rather than raised testosterone with this dyslipidemia was also confirmed by the study.
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Affiliation(s)
- A Maitra
- Institute for Research in Reproduction (ICMR), Parel, Mumbai, India
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Abstract
The working conditions in the developing world necessitate the development of many adaptations and improvizations of accepted anaesthetic techniques to improve patient care. Subcutaneous tunnelling of caudally placed epidural catheters is one such improvization to prevent the soiling of the catheter by urine and faeces. This study compares the duration of retention of catheter in a group with tunnelled catheters with an untunnelled group. The absence of a catheter emerging through skin at the site of catheter insertion hastens healing thus prolonging the retention of catheter in the tunnelled group and soiling ceases to be a major problem.
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Affiliation(s)
- L Vas
- Department of Anaesthesiology, Bai Jerbai Wadia Hospital for Children Acharya Donde Marg, Parel, Mumbai 400012, India
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Abstract
A substantial mediastinal mass in a small infant can create a dilemma regarding the safest mode of airway management. To ensure safety at all times, we adopted one lung ventilation for fear of compression of the carina and/or both main bronchi. Anaesthesia was maintained at a very light plane by the use of local nerve blocks to secure the airway and epidural analgesia for surgery until the tumour was mobilized.
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Affiliation(s)
- L Vas
- Bai Jerbai Wadia Hospital for Children, Acharya Donde Marg, Parel Mombay, India
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Verenkar M, Naik V, Rodrigues S, Singh I. Aeromonas species and Plesiomonas shigelloides in diarrhoea in Goa. INDIAN J PATHOL MICR 1995; 38:169-71. [PMID: 8919103] [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: 02/03/2023] Open
Abstract
Sixty six strains (1.9%) of Aeromonas species and 7 strains (0.2%) of Plesiomonas shigelloides were isolated from 3484 stool/rectal swabs from cases of diarrhoea during the study period of four years from August 1986 to July 1990 in Goa. Although the selective medium (Ampicillin sheep blood agar) was not used for the isolation of Aeromonas, an increase in the rate of isolation of Aeromonas from 0.2% in the year 1986 to 6.0% in 1990 was observed. Stool samples from 100 controls (patients without diarrhoea) examined in the year 1989 did not yield either of the pathogens.
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Affiliation(s)
- M Verenkar
- Department of Microbiology, Goa Medical College, Bambolim
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Naik RS, Naik V. Hydatid cyst in sternomastoid muscle. J Indian Med Assoc 1982; 79:57-8. [PMID: 7161495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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