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Ahmed N, Kidane B, Wang L, Nugent Z, Moldovan N, McElrea A, Shariati-Ievari S, Qing G, Tan L, Buduhan G, Srinathan SK, Meyers R, Aliani M. Metabolic Alterations in Sputum and Exhaled Breath Condensate of Early Stage Non-Small Cell Lung Cancer Patients After Surgical Resection: A Pilot Study. Front Oncol 2022; 12:874964. [PMID: 35719971 PMCID: PMC9204221 DOI: 10.3389/fonc.2022.874964] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 04/27/2022] [Indexed: 12/19/2022] Open
Abstract
Every year, close to two million people world-wide are diagnosed with and die of lung cancer. Most patients present with advanced-stage cancer with limited curative options and poor prognosis. Diagnosis of lung cancer at an early stage provides the best chance for a cure. Low- dose CT screening of the chest in the high-risk population is the current standard of care for early detection of lung cancer. However, CT screening is invasive due to radiation exposure and carries the risk of unnecessary biopsies in non-cancerous tumors. In this pilot study, we present metabolic alterations observed in sputum and breath condensate of the same population of early- stage non-small cell lung cancer (NSCLC) patients cancer before and after surgical resection (SR), which could serve as noninvasive diagnostic tool. Exhaled breath condensate (EBC) (n=35) and sputum (n=15) were collected from early-stage non-small cell lung cancer (NSCLC) patients before and after SR. Median number of days for EBC and sputum collection before and after SR were 7 and 42; and 7 and 36 respectively Nuclear magnetic resonance (NMR) and liquid chromatography quadrupole time-of-flight mass spectrometry (LC-QTOF-MS) were used to analyze the metabolic profile of the collected samples. A total of 26 metabolites with significant alteration post SR were identified, of which 14 (54%) were lipids and 12 constituted nine different chemical metabolite classes. Eighteen metabolites (69%) were significantly upregulated and 8 (31%) were downregulated. Median fold change for all the up- and downregulated metabolites (LC-QTOF-MS) were 10 and 8, respectively. Median fold change (MFC) in concentration of all the up- and downregulated metabolites (NMR) were 0.04 and 0.27, respectively. Furthermore, glucose (median fold change, 0.01, p=0.037), adenosine monophosphate (13 log fold, p=0.0037) and N1, N12- diacetylspermine (8 log fold p=0.011) sputum levels were significantly increased post-SR. These identified sputa and EBC indices of altered metabolism could serve as basis for further exploration of biomarkers for early detection of lung cancer, treatment response, and targets for drug discovery. Validation of these promising results by larger clinical studies is warranted.
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Affiliation(s)
- Naseer Ahmed
- CancerCare Manitoba Research Institute, Winnipeg, MB, Canada
- Department of Radiology, Section of Radiation Oncology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Biniam Kidane
- CancerCare Manitoba Research Institute, Winnipeg, MB, Canada
- Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
- Department of Surgery, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Le Wang
- Department of Epidemiology and Cancer Registry, CancerCare Manitoba, Winnipeg, MB, Canada
- St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB, Canada
| | - Zoann Nugent
- Department of Epidemiology and Cancer Registry, CancerCare Manitoba, Winnipeg, MB, Canada
| | - Nataliya Moldovan
- Department of Radiology, Section of Radiation Oncology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - April McElrea
- St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB, Canada
| | | | - Gefei Qing
- Department of Pathology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Lawrence Tan
- Department of Surgery, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Gordon Buduhan
- Department of Surgery, University of British Columbia, Vancouver, BC, Canada
| | - Sadeesh K. Srinathan
- Department of Surgery, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Renelle Meyers
- BC Cancer Research Institute, University of British Columbia, Vancouver, BC, Canada
| | - Michel Aliani
- St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB, Canada
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, MB, Canada
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Fahmi R, Ryland D, Sopiwnyk E, Malcolmson L, Shariati-Ievari S, McElrea A, Barthet V, Blewett H, Aliani M. Effect of Revtech thermal processing on volatile organic compounds and chemical characteristics of split yellow pea (Pisum sativum L.) flour. J Food Sci 2021; 86:4330-4353. [PMID: 34535898 DOI: 10.1111/1750-3841.15913] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 08/05/2021] [Accepted: 08/22/2021] [Indexed: 11/28/2022]
Abstract
Yellow pea (Pisumsativum L.) is an economically rich source of nutrients with health-promoting effects. However, the consumption of pea ingredients is minimal due to their off-flavor characteristics. The present study investigated the effect of Revtech heat treatment on the chemical profile and volatile compounds in split yellow pea flour. Revtech treatment (RT) was applied at 140°C with a residence time of 4 min in dry condition (RT 0%) and in the presence of 10% steam (RT 10%). Both thermal treatments resulted in a significant reduction (p < 0.05) in lipoxygenase activity and the concentration of key beany-related odors such as heptanal, (E)-2-heptenal, 1-octen-3-ol, octanal, and (E)-2-octenal. In addition, RT 10% resulted in a significant reduction in pentanal, 1-penten-3-ol, hexanal, and 1-hexanol compared to untreated flour. The content of known precursors of lipoxygenase such as linoleic and linolenic acids was found in higher concentrations in heat-treated flours, indicating the efficacy of Revtech technology in minimizing the degradation of polyunsaturated fatty acids. No significant changes in the amino acid composition or the 29 selected phenolic compounds in pea flours were observed with Revtech processing except for two compounds, caffeic acid and gallocatechin, which were found at higher concentrations in RT 0%. PRACTICAL APPLICATION: Thermal processing of split yellow pea flours at 140°C using Revtech technology successfully decreased the concentrations of volatile compounds responsible for beany off-flavor while improving the nutritional quality of studied yellow pea flours. These results provide valuable information to the food industry for developing novel pulse-based products with enhanced sensory characteristics.
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Affiliation(s)
- Ronak Fahmi
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Canada
- The Canadian Centre for Agri-Food Research in Health and Medicine (CCARM), Winnipeg, Canada
| | - Donna Ryland
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Canada
| | - Elaine Sopiwnyk
- Canadian International Grains Institute (Cigi), Winnipeg, Canada
| | | | - Shiva Shariati-Ievari
- The Canadian Centre for Agri-Food Research in Health and Medicine (CCARM), Winnipeg, Canada
| | - April McElrea
- The Canadian Centre for Agri-Food Research in Health and Medicine (CCARM), Winnipeg, Canada
| | - Veronique Barthet
- Grain Research Laboratory, Canadian Grain Commission, Winnipeg, Canada
| | - Heather Blewett
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Canada
- The Canadian Centre for Agri-Food Research in Health and Medicine (CCARM), Winnipeg, Canada
- Morden Research and Development Centre, Agriculture and Agri-Food Canada, Morden, Canada
| | - Michel Aliani
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Canada
- The Canadian Centre for Agri-Food Research in Health and Medicine (CCARM), Winnipeg, Canada
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