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1. Ratnasekhar Ch*, Guillaume Rey*, Sandipan Ray, Utham Valekunja, Paul C. Driscoll, Radoslaw Lach, Pawan Kumar Jha, Mariana Silva Dos Santos, James Ellis, James I. MacRae and Akhilesh B. “Rhythmic glucose metabolism regulates the redox circadian clockwork in human red blood cells”.

Nature communications 2021, 12, 377, 1-14.  (I.F 14.14)


2.  Ratnasekhar Ch*, Olivier Chevallier, Christopher Elliott. Metabolomics reveal Circadian control of Cellular metabolism. Trends in Analytical Chemistry. 2020, 115986.  (I.F 9.8)


3.   Ratnasekhar Ch*, Olivier Chevallier, Philip McCarron, Terence F McGrath, Di Wu, Arun P Kapil, Mary McBride, Christopher Elliott. Metabolomic fingerprinting of volatile organic compounds for the geographical discrimination of rice samples from China, Vietnam and India. Food Chemistry. 2020, 334, 127553.  (I.F 6.3)

4.   Guillaume Rey, Nikollay B Millev Utham Velekunja, Ratnasekhar Ch, Sandipan Ray, Maraiana Silva Dos Santos, Andras D Nagy, Robin Antrobus, James I Macrae, Akhilesh B Reddy. “Metabolic oscillations on the circadian time scale in Drosophila cells lacking clock genes”.  Molecular Systems Biology, 2018, 14(8), E8376. Cover page article. (I.F 9.9)


5.   Ratnasekhar Ch, Amit Kumar Singh, Manoj Pathak, Amarnath S, Chandrasekharan N Kesavachandran, Vipin Bihari, Mohana Krishna Reddy Mudiam. “Saliva and Urine metabolic profiling reveals altered amino acid and energy metabolism for complex pesticide exposure in human”.  Chemosphere, 2019, 226, 636. (I.F 5.7)


6.    Ratnasekhar Ch#, Shukla AK, Pragya P, Chauhan HS, Patel DK, Chowdhuri DK, MMK Reddy.  “Metabolomic analysis provides insights on paraquat induced Parkinson like symptoms in Drosophila melanogaster”. Molecular Neurobiology 2016, 53(1), 253-269.  (I.F 5.1)


7.     Ratnasekhar Ch, Sonane M, Satish A, Mohana Krishna Reddy Mudiam. “Metabolomics reveals the perturbation in the metabolome of Caenorhabditis elegans exposed to titanium dioxide nanoparticles”. Nanotoxicology, 2015, 9(8), 994-1004.  (I.F 6.2)


8.   Ratnasekhar Ch, Amit Kumar singh, Pathya Pandey, Saxena P.N, Mohana Krishna reddy mudiam. “Identifying metabolic perturbations in earthworm induced by cypermethrin using gas-chromatography mass spectrometry-based metabolomics approach”. Nature Scientific Reports 2015, 5, 15674.  (I.F 4.6)


9.     Gati Krushna P, Ratnasekhar Ch, Mohana krishn mudiam, Vipin M V, Sheikh R, Mukul Das. “Activity guided chemo toxic profiling of Cassia occidentalis: Detection of toxic compounds in body fluids of CO exposed patients and experimental rats”. ACS Chemical research in toxicology. 2015, 28, 6, 1120-1132. (I.F 3.2)


10.  Manoj Kumar Gutpa, Rajeev Jain, Pratibha Singh, Ratnasekhar Ch, Mohana Krishna mudiam. “Determination of urinary PAH metabolites using DLLME hyphenated to injector port silylation and GC-MS/MS. Journal of Analytical Toxicology. 2015, 39(5), 365-373. (I.F 2.9)  


11.  Snighda Misra, Ajay Kumar, Ratnasekhar Ch, Vandana Sharma, Mohana Krishna Reddy mudaim, Kristipati Ravi Ram. “Exposure to endosulfan influences sperm competition in Drosophila melanogaster” Nature Scientific Reports, 2014, 4, 7433. (I.F 4.6)


12.  Snighda Misra, Anshuman Singh, Ratnasekhar Ch, Vandana Sharma, Mohana Krishna Reddy mudiam, Kristipati Ravi Ram. “Identification of Drosophila-based endpoints for the assessment of xenobiotic-mediated male reproductive adversities”. Toxicological Sciences, 2014, 141(1), 278-291. (I.F 4.1)


13.  Syed Faix M, Ashish Dwivedi, Neera Yadav, Ratnasekhar Ch, Hari Narayan K, Mohan KR Mudiam, Gajendra Singh, Ratan S Ray. “Superoxide mediated photo modification and DNA damage induced apoptosis by Benzo(a)anthracen via mitochondrial mediated pathway. Journal of Photochemistry and Photobiology B: Biology, 2015, 142, 92-102. (I.F 4.0)


14. Ratnasekhar Ch#, Mohana Krishna reddy mudiam, Sacena P.N. “Gas chromatography-mass spectrometry-based metabolomics approach for the optimization and toxicity evalution of the earthworm sub-lethal responses to carbofuran”. PLOS ONE. 2013, 8, e81077.  (I.F 2.8)


15.  Ratnasekhar Ch#, Mohana Krishna reddy mudiam. “Ultrasound assisted one step rapid derivatization and dispersive liquid-liquid microextraction followed by gas chromatography mass spectrometry determination of amino acids in complex matrices”. Journal of Chromatography A. 2013, 1291, 10-18. (I.F 3.9)


16.  Rajeev Jain, Mohana Krishna Reddy Mudiam, Abhishek Chauhan, Ratnasekhar Ch, RC Murthy, Haider A Khan. “Simultaneous derivatization and preconcentration of parabens in food and other matrices by isobutyl chloroformate and dispersive liquid-liquid microextraction followed by gas chromatography-mass spectrometry”. Food Chemistry, 2013, 141, 436-443.  (I.F 6.2)


17. Rajeev Jain Mohana Krishna Reddy Mudiam, Abhishek Chauhan, Ratnasekhar Ch, Haider A Khan, RC Murthy. “Ultrasound assisted dispersive liquid-liquid microextraction followed by injector port silylation: a novel method for rapid determination of quinine in urine by GC-MS”. Bioanalysis, 2013, 5(18), 2277-2286. 

      (I.F 2.5)


18.  Mohana Krishna reddy mudiam, Rajeev jain, Meenu Varshney, Ratnasekhar Ch, Abhishek Chauhan, Sudhir Kumar Goyal, Haider A Khan, RC Murthy. In matrix derivatization of trichloroethylene metabolies in human plasma with methyl chloroformate and their determination by solid-phase mictoextraction gas chromatography-mass spectrometry. Journal of Chromatography B, 2013, 925, 63-69. (I.F 2.8) 


19.  Mohana Krishna reddy mudiam, Abhishek Chauhan Krishna P singh, Shailendar K Gupta, Rajeev Jain, Ratnasekhar Ch, Murthy RC. “Determination of t,t-muconic acid in urine samples using a molecular imprinted polymer combined with simultaneous ethyl chloroformate derivatization and pre-concentration by dispersive liquid-liquid microextraction. Analytical and Bioanalytical Chemistry, 2013, 405(1), 341-349.  (I.F 3.4)


20.  Ratnasekhar Ch#, Mohana Krishna reddy mudiam, Rajeev Jain, P.N Saxena, Abhishek Chauhan, R.C. Murthy. “Rapid and simultaneous determination of twenty amino acids in complex biological and food samples by solid-phase micro extraction and gas chromatography mass spectrometry with the aid of experimental design after ethyl chloroformate derivatization”. Journal of Chromatography B, 2012, 907, 56-64 (I.F 2.8)


21.  Ratnasekhar Ch#, Mohana Krishna reddy mudiam. “Optimization of UA-DLLME by experimental design methodologies for the simultaneous determination endosulfan and its metabolites in soil and urine samples by GC-MS”. Analytical methods, 2012, 4, 3855-3863. (I.F 2.2)


22.  Ratnasekhar Ch#, Singh AK, Chaudhari BP, Singh D, Chattopadhyay BD. “Evaluating metabolic responses in mice to nanosized titanium dioxide particles using gas chromatography mass spectrometry”. Austin journal of analytical and pharmaceutical chemistry, 2017, 4(2), 1085.  (I.F 2.0)


23.  Smita Kumari, Raj Kumar Regar, Abhay Bajaj, Ratnasekhar Ch, Gubbala Naga Benkata Satyanarayana, Mohana Krishna Reddy Mudiam, Natesan Manickam. Simultaneous biodegradation of polyaromatic hydrocarbons by a Stenotrophomonas sp: Characterisation of nid Genes and Effect of Surfactants and Degradation. Indian J Microbial 2017, 57(1), 60-67. (I.F 1.9)


24.  Mohana Krishna reddy mudaim, Abhishek Chauhan, Rajeev Jain, Ratnasekhar Ch, Ghizal Fatima, Ekta Malhotra, R C Murthy. Development, validation and comparison of two microextraction techniques for the rapid and sensitive determination of pregabalin in urine and pharmaceutical formulations after ethyl chloroformate derivatization followed by gas chromatography-mass spectrometry. Journal of Pharmaceutical and Biomedical analysis. 2012, 70, 310-319.  (I.F 3.1)


25. Ratnasekhar Ch, Mohit Tyagi, PR Patil, KPR Kartha. “DABCO: an efficient promoter for the acetylation of carbohydrates and other substances under solvent free conditions”. Tetrahedron Letters, 52 (44), 5841-5846.  (I.F 1.9)

Sekhar Lab

   for  Metabolic  research
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