Molecular profiling of sepsis in mice using Fourier Transform Infrared Microspectroscopy
| Autor: | Shamik Majumdar, Dipankar Nandi, Taru Verma, Syed Moiz Ahmed, Srividya Kumar, Mukta Deobagkar-Lele, Nagalingam R. Sundaresan, Bhagawat Chandrasekar, Rekha Gautam, Siva Umapathy, Emmanuel S. Victor, Nitin Wadhwa |
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| Rok vydání: | 2014 |
| Předmět: |
0301 basic medicine
Lipopolysaccharides Salmonella typhimurium Salmonella Lipopolysaccharide General Physics and Astronomy Inflammation Biology medicine.disease_cause Biochemistry General Biochemistry Genetics and Molecular Biology Proinflammatory cytokine Sepsis 03 medical and health sciences chemistry.chemical_compound Mice Spectroscopy Fourier Transform Infrared medicine Animals General Materials Science Instrumentation Appiled Physics Microbiology & Cell Biology Mice Inbred BALB C Glycogen Organ dysfunction General Engineering Amoxicillin General Chemistry medicine.disease Molecular biology 030104 developmental biology chemistry Liver Thioglycolates Immunology Tumor necrosis factor alpha sense organs medicine.symptom Inorganic & Physical Chemistry Spleen |
| Zdroj: | Journal of biophotonics. 9(1-2) |
| ISSN: | 1864-0648 |
| Popis: | Sepsis is a life threatening condition resulting from a high burden of infection. It is a major health care problem and associated with inflammation, organ dysfunction and significant mortality. However, proper understanding and delineating the changes that occur during this complex condition remains a challenge. A comparative study involving intra-peritoneal injection of BALB/c mice with Salmonella Typhimurium (infection), lipopolysaccharide (endotoxic shock) or thioglycollate (sterile peritonitis) was performed. The changes in organs and sera were profiled using immunological assays and Fourier Transform Infrared (FTIR) micro-spectroscopy. There is a rapid rise in inflammatory cytokines accompanied with lowering of temperature, respiratory rate and glucose amounts in mice injected with S. Typhimurium or lipopolysaccharide. FTIR identifies distinct changes in liver and sera: decrease in glycogen and protein/lipid ratio and increase in DNA and cholesteryl esters. These changes were distinct from the pattern observed in mice treated with thioglycollate and the differences in the data obtained between the three models are discussed. The combination of FTIR spectroscopy and other biomarkers will be valuable in monitoring molecular changes during sepsis. GRAPHICS] Intra-peritoneal infection with high dose of Salmonella Typhimurium leads to rapid increase in inflammatory cytokines, e.g. Tnf alpha (A). FTIR analysis of liver (B) and sera (C) identifies several metabolic changes: glycogen, protein/lipid, cholesteryl esters and DNA. |
| Databáze: | OpenAIRE |
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