<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Bhattacharya, Nivedita</style></author><author><style face="normal" font="default" size="100%">Singh, Ajeet</style></author><author><style face="normal" font="default" size="100%">Ghanate, Avinash</style></author><author><style face="normal" font="default" size="100%">Phadke, Gayatri</style></author><author><style face="normal" font="default" size="100%">Parmar, Dharmesh</style></author><author><style face="normal" font="default" size="100%">Dhaware, Deepika G.</style></author><author><style face="normal" font="default" size="100%">Basak, Trayambak</style></author><author><style face="normal" font="default" size="100%">Sengupta, Shantanu</style></author><author><style face="normal" font="default" size="100%">Panchagnula, Venkateswarlu</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Matrix-assisted laser desorption/ionization mass spectrometry analysis of dimethyl arginine isomers from urine</style></title><secondary-title><style face="normal" font="default" size="100%">Analytical Methods</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2014</style></year><pub-dates><date><style  face="normal" font="default" size="100%">APR</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">13</style></number><publisher><style face="normal" font="default" size="100%">ROYAL SOC CHEMISTRY</style></publisher><pub-location><style face="normal" font="default" size="100%">THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND</style></pub-location><volume><style face="normal" font="default" size="100%">6</style></volume><pages><style face="normal" font="default" size="100%">4602-4609</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Isomeric asymmetric and symmetric dimethyl arginine (ADMA and SDMA respectively) residues are excreted in urine and are putative markers of cardiovascular and chronic kidney diseases. In this work, we demonstrate simultaneous and quantitative detection of endogeneous ADMA and SDMA from urine samples of healthy subjects using MALDI-TOF MS without any chromatographic separation. The DMA isomers yielded [M + H](+) ions along with their product ions formed due to MALDI in-source fragmentation. The precursor ions were validated using MALDI-TOF MS/MS as well as direct injection ESI-Q-TOF MS/MS. ADMA and SDMA generated unique product ions at similar to m/z 46 and similar to m/z 172 respectively in the MS-mode itself. These were advantageously used for full scan-mode absolute quantification of the isomeric metabolites. The m/z observed for all the ions was within 10 ppm mass accuracy. The calibration method was established by generating internal standard normalized peak area-based concentration response curves using synthetic standards. Good linearities (R-2 &amp;gt; 0.95) with acceptable intra-assay, inter-assay variation (within 15% RSD) and excellent recoveries were observed for quality control samples. Finally, endogeneous concentrations of the metabolites were determined in urine from healthy subjects (n = 11). ADMA and SDMA were found to be in the range of 1.6-8 mu M and 2.9-9.1 mu M in urine and were in agreement with previously reported physiological levels.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">13</style></issue><custom3><style face="normal" font="default" size="100%">&lt;p&gt;Foreign&lt;/p&gt;</style></custom3><custom4><style face="normal" font="default" size="100%">1.915</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Singh, Prateek</style></author><author><style face="normal" font="default" size="100%">Ujjainiya, Rajat</style></author><author><style face="normal" font="default" size="100%">Prakash, Satyartha</style></author><author><style face="normal" font="default" size="100%">Naushin, Salwa</style></author><author><style face="normal" font="default" size="100%">Sardana, Viren</style></author><author><style face="normal" font="default" size="100%">Bhatheja, Nitin</style></author><author><style face="normal" font="default" size="100%">Singh, Ajay Pratap</style></author><author><style face="normal" font="default" size="100%">Barman, Joydeb</style></author><author><style face="normal" font="default" size="100%">Kumar, Kartik</style></author><author><style face="normal" font="default" size="100%">Gayali, Saurabh</style></author><author><style face="normal" font="default" size="100%">Khan, Raju</style></author><author><style face="normal" font="default" size="100%">Rawat, Birendra Singh</style></author><author><style face="normal" font="default" size="100%">Tallapaka, Karthik Bharadwaj</style></author><author><style face="normal" font="default" size="100%">Anumalla, Mahesh</style></author><author><style face="normal" font="default" size="100%">Lahiri, Amit</style></author><author><style face="normal" font="default" size="100%">Kar, Susanta</style></author><author><style face="normal" font="default" size="100%">Bhosale, Vivek</style></author><author><style face="normal" font="default" size="100%">Srivastava, Mrigank</style></author><author><style face="normal" font="default" size="100%">Mugale, Madhav Nilakanth</style></author><author><style face="normal" font="default" size="100%">Pandey, C. P.</style></author><author><style face="normal" font="default" size="100%">Khan, Shaziya</style></author><author><style face="normal" font="default" size="100%">Katiyar, Shivani</style></author><author><style face="normal" font="default" size="100%">Raj, Desh</style></author><author><style face="normal" font="default" size="100%">Ishteyaque, Sharmeen</style></author><author><style face="normal" font="default" size="100%">Khanka, Sonu</style></author><author><style face="normal" font="default" size="100%">Rani, Ankita</style></author><author><style face="normal" font="default" size="100%">Promila</style></author><author><style face="normal" font="default" size="100%">Sharma, Jyotsna</style></author><author><style face="normal" font="default" size="100%">Seth, Anuradha</style></author><author><style face="normal" font="default" size="100%">Dutta, Mukul</style></author><author><style face="normal" font="default" size="100%">Saurabh, Nishant</style></author><author><style face="normal" font="default" size="100%">Veerapandian, Murugan</style></author><author><style face="normal" font="default" size="100%">Venkatachalam, Ganesh</style></author><author><style face="normal" font="default" size="100%">Bansal, Deepak</style></author><author><style face="normal" font="default" size="100%">Gupta, Dinesh</style></author><author><style face="normal" font="default" size="100%">Halami, Prakash M.</style></author><author><style face="normal" font="default" size="100%">Peddha, Muthukumar Serva</style></author><author><style face="normal" font="default" size="100%">Veeranna, Ravindra P.</style></author><author><style face="normal" font="default" size="100%">Pal, Anirban</style></author><author><style face="normal" font="default" size="100%">Singh, Ranvijay Kumar</style></author><author><style face="normal" font="default" size="100%">Anandasadagopan, Suresh Kumar</style></author><author><style face="normal" font="default" size="100%">Karuppanan, Parimala</style></author><author><style face="normal" font="default" size="100%">Rahman, Syed Nasar</style></author><author><style face="normal" font="default" size="100%">Selvakumar, Gopika</style></author><author><style face="normal" font="default" size="100%">Venkatesan, Subramanian</style></author><author><style face="normal" font="default" size="100%">Karmakar, Malay Kumar</style></author><author><style face="normal" font="default" size="100%">Sardana, Harish Kumar</style></author><author><style face="normal" font="default" size="100%">Kothari, Anamika</style></author><author><style face="normal" font="default" size="100%">Parihar, Devendra Singh</style></author><author><style face="normal" font="default" size="100%">Thakur, Anupma</style></author><author><style face="normal" font="default" size="100%">Saifi, Anas</style></author><author><style face="normal" font="default" size="100%">Gupta, Naman</style></author><author><style face="normal" font="default" size="100%">Singh, Yogita</style></author><author><style face="normal" font="default" size="100%">Reddu, Ritu</style></author><author><style face="normal" font="default" size="100%">Gautam, Rizul</style></author><author><style face="normal" font="default" size="100%">Mishra, Anuj</style></author><author><style face="normal" font="default" size="100%">Mishra, Avinash</style></author><author><style face="normal" font="default" size="100%">Gogeri, Iranna</style></author><author><style face="normal" font="default" size="100%">Rayasam, Geethavani</style></author><author><style face="normal" font="default" size="100%">Padwad, Yogendra</style></author><author><style face="normal" font="default" size="100%">Patial, Vikram</style></author><author><style face="normal" font="default" size="100%">Hallan, Vipin</style></author><author><style face="normal" font="default" size="100%">Singh, Damanpreet</style></author><author><style face="normal" font="default" size="100%">Tirpude, Narendra</style></author><author><style face="normal" font="default" size="100%">Chakrabarti, Partha</style></author><author><style face="normal" font="default" size="100%">Maity, Sujay Krishna</style></author><author><style face="normal" font="default" size="100%">Ganguly, Dipyaman</style></author><author><style face="normal" font="default" size="100%">Sistla, Ramakrishna</style></author><author><style face="normal" font="default" size="100%">Balthu, Narender Kumar</style></author><author><style face="normal" font="default" size="100%">Kumar, Kiran A.</style></author><author><style face="normal" font="default" size="100%">Ranjith, Siva</style></author><author><style face="normal" font="default" size="100%">Kumar, B. Vijay</style></author><author><style face="normal" font="default" size="100%">Jamwal, Piyush Singh</style></author><author><style face="normal" font="default" size="100%">Wali, Anshu</style></author><author><style face="normal" font="default" size="100%">Ahmed, Sajad</style></author><author><style face="normal" font="default" size="100%">Chouhan, Rekha</style></author><author><style face="normal" font="default" size="100%">Gandhi, Sumit G.</style></author><author><style face="normal" font="default" size="100%">Sharma, Nancy</style></author><author><style face="normal" font="default" size="100%">Rai, Garima</style></author><author><style face="normal" font="default" size="100%">Irshad, Faisal</style></author><author><style face="normal" font="default" size="100%">Jamwal, Vijay Lakshmi</style></author><author><style face="normal" font="default" size="100%">Paddar, Masroor Ahmad</style></author><author><style face="normal" font="default" size="100%">Khan, Sameer Ullah</style></author><author><style face="normal" font="default" size="100%">Malik, Fayaz</style></author><author><style face="normal" font="default" size="100%">Ghosh, Debashish</style></author><author><style face="normal" font="default" size="100%">Thakkar, Ghanshyam</style></author><author><style face="normal" font="default" size="100%">Barik, S. K.</style></author><author><style face="normal" font="default" size="100%">Tripathi, Prabhanshu</style></author><author><style face="normal" font="default" size="100%">Satija, Yatendra Kumar</style></author><author><style face="normal" font="default" size="100%">Mohanty, Sneha</style></author><author><style face="normal" font="default" size="100%">Khan, Md Tauseef</style></author><author><style face="normal" font="default" size="100%">Subudhi, Umakanta</style></author><author><style face="normal" font="default" size="100%">Sen, Pradip</style></author><author><style face="normal" font="default" size="100%">Kumar, Rashmi</style></author><author><style face="normal" font="default" size="100%">Bhardwaj, Anshu</style></author><author><style face="normal" font="default" size="100%">Gupta, Pawan</style></author><author><style face="normal" font="default" size="100%">Sharma, Deepak</style></author><author><style face="normal" font="default" size="100%">Tuli, Amit</style></author><author><style face="normal" font="default" size="100%">Chaudhuri, Saumya Ray</style></author><author><style face="normal" font="default" size="100%">Krishnamurthi, Srinivasan</style></author><author><style face="normal" font="default" size="100%">Prakash, L.</style></author><author><style face="normal" font="default" size="100%">Rao, V. Ch</style></author><author><style face="normal" font="default" size="100%">Singh, B. N.</style></author><author><style face="normal" font="default" size="100%">Chaurasiya, Arvindkumar</style></author><author><style face="normal" font="default" size="100%">Chaurasiya, Meera</style></author><author><style face="normal" font="default" size="100%">Bhadange, Mayuri</style></author><author><style face="normal" font="default" size="100%">Likhitkar, Bhagyashree</style></author><author><style face="normal" font="default" size="100%">Mohite, Sharada</style></author><author><style face="normal" font="default" size="100%">Patil, Yogita</style></author><author><style face="normal" font="default" size="100%">Kulkarni, Mahesh</style></author><author><style face="normal" font="default" size="100%">Joshi, Rakesh</style></author><author><style face="normal" font="default" size="100%">Pandya, Vaibhav</style></author><author><style face="normal" font="default" size="100%">Mahajan, Sachin</style></author><author><style face="normal" font="default" size="100%">Patil, Amita</style></author><author><style face="normal" font="default" size="100%">Samson, Rachel</style></author><author><style face="normal" font="default" size="100%">Vare, Tejas</style></author><author><style face="normal" font="default" size="100%">Dharne, Mahesh</style></author><author><style face="normal" font="default" size="100%">Giri, Ashok</style></author><author><style face="normal" font="default" size="100%">Mahajan, Sachin</style></author><author><style face="normal" font="default" size="100%">Paranjape, Shilpa</style></author><author><style face="normal" font="default" size="100%">Sastry, G. Narahari</style></author><author><style face="normal" font="default" size="100%">Kalita, Jatin</style></author><author><style face="normal" font="default" size="100%">Phukan, Tridip</style></author><author><style face="normal" font="default" size="100%">Manna, Prasenjit</style></author><author><style face="normal" font="default" size="100%">Romi, Wahengbam</style></author><author><style face="normal" font="default" size="100%">Bharali, Pankaj</style></author><author><style face="normal" font="default" size="100%">Ozah, Dibyajyoti</style></author><author><style face="normal" font="default" size="100%">Sahu, RaviKumar</style></author><author><style face="normal" font="default" size="100%">Dutta, Prachurjya</style></author><author><style face="normal" font="default" size="100%">Singh, Moirangthem Goutam</style></author><author><style face="normal" font="default" size="100%">Gogoi, Gayatri</style></author><author><style face="normal" font="default" size="100%">Tapadar, Yasmin Begam</style></author><author><style face="normal" font="default" size="100%">Babu, Elapavalooru V. S. S. K.</style></author><author><style face="normal" font="default" size="100%">Sukumaran, Rajeev K.</style></author><author><style face="normal" font="default" size="100%">Nair, Aishwarya R.</style></author><author><style face="normal" font="default" size="100%">Puthiyamadam, Anoop</style></author><author><style face="normal" font="default" size="100%">Valappil, Prajeesh Kooloth</style></author><author><style face="normal" font="default" size="100%">Prasannakumari, Adrash Velayudhan Pillai</style></author><author><style face="normal" font="default" size="100%">Chodankar, Kalpana</style></author><author><style face="normal" font="default" size="100%">Damare, Samir</style></author><author><style face="normal" font="default" size="100%">Agrawal, Ved Varun</style></author><author><style face="normal" font="default" size="100%">Chaudhary, Kumardeep</style></author><author><style face="normal" font="default" size="100%">Agrawal, Anurag</style></author><author><style face="normal" font="default" size="100%">Sengupta, Shantanu</style></author><author><style face="normal" font="default" size="100%">Dash, Debasis</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Machine learning-based approach to determine infection status in recipients of BBV152 (Covaxin) whole-virion inactivated SARS-CoV-2 vaccine for serological surveys</style></title><secondary-title><style face="normal" font="default" size="100%">Computers in Biology and Medicine</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">BBV152</style></keyword><keyword><style  face="normal" font="default" size="100%">Covaxin</style></keyword><keyword><style  face="normal" font="default" size="100%">COVID-19</style></keyword><keyword><style  face="normal" font="default" size="100%">Ensemble methods</style></keyword><keyword><style  face="normal" font="default" size="100%">Infection</style></keyword><keyword><style  face="normal" font="default" size="100%">machine learning</style></keyword><keyword><style  face="normal" font="default" size="100%">SARS-CoV-2</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2022</style></year><pub-dates><date><style  face="normal" font="default" size="100%">JUL</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">146</style></volume><pages><style face="normal" font="default" size="100%">105419</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Data science has been an invaluable part of the COVID-19 pandemic response with multiple applications, ranging from tracking viral evolution to understanding the vaccine effectiveness. Asymptomatic breakthrough infections have been a major problem in assessing vaccine effectiveness in populations globally. Serological discrimination of vaccine response from infection has so far been limited to Spike protein vaccines since whole virion vaccines generate antibodies against all the viral proteins. Here, we show how a statistical and machine learning (ML) based approach can be used to discriminate between SARS-CoV-2 infection and immune response to an inactivated whole virion vaccine (BBV152, Covaxin). For this, we assessed serial data on antibodies against Spike and Nucleocapsid antigens, along with age, sex, number of doses taken, and days since last dose, for 1823 Covaxin recipients. An ensemble ML model, incorporating a consensus clustering approach alongside the support vector machine model, was built on 1063 samples where reliable qualifying data existed, and then applied to the entire dataset. Of 1448 self-reported negative subjects, our ensemble ML model classified 724 to be infected. For method validation, we determined the relative ability of a random subset of samples to neutralize Delta versus wild-type strain using a surrogate neutralization assay. We worked on the premise that antibodies generated by a whole virion vaccine would neutralize wild type more efficiently than delta strain. In 100 of 156 samples, where ML prediction differed from self-reported uninfected status, neutralization against Delta strain was more effective, indicating infection. We found 71.8% subjects predicted to be infected during the surge, which is concordant with the percentage of sequences classified as Delta (75.6%-80.2%) over the same period. Our approach will help in real-world vaccine effectiveness assessments where whole virion vaccines are commonly used.&lt;/p&gt;
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