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Kumar S, Pipliya S, Srivastav PP. Effect of cold plasma processing on physicochemical and nutritional quality attributes of kiwifruit juice. J Food Sci 2023; 88:1533-1552. [PMID: 36866392 DOI: 10.1111/1750-3841.16494] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 12/22/2022] [Accepted: 01/23/2023] [Indexed: 03/04/2023]
Abstract
Cold plasma treatment of kiwifruit juice was studied in the domain of 18-30 kV of voltage, 2-6 mm of juice depth, and 6-10 min of treatment time using the response surface methodology (RSM). The experimental design utilized was a central composite rotatable design. The effect of voltage, juice depth, and treatment time on the various responses, namely peroxidase activity, color, total phenolic content, ascorbic acid, total antioxidant activity, and total flavonoid content, was examined. While modeling, the artificial neural network (ANN) showed greater predictive capability than RSM as the coefficient of determination (R2 ) value of responses was greater in the case of ANN (0.9538-0.9996) than in RSM (0.9041-0.9853). The mean square error value was also less in the case of ANN than in RSM. The ANN was coupled with a genetic algorithm (GA) for optimization. The optimum condition obtained from ANN-GA was 30 kV, 5 mm, and 6.7 min, respectively.
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Affiliation(s)
- Sitesh Kumar
- Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
| | - Sunil Pipliya
- Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
| | - Prem Prakash Srivastav
- Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
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Cheong A, Nagel ZD. Human Variation in DNA Repair, Immune Function, and Cancer Risk. Front Immunol 2022; 13:899574. [PMID: 35935942 PMCID: PMC9354717 DOI: 10.3389/fimmu.2022.899574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 06/20/2022] [Indexed: 11/13/2022] Open
Abstract
DNA damage constantly threatens genome integrity, and DNA repair deficiency is associated with increased cancer risk. An intuitive and widely accepted explanation for this relationship is that unrepaired DNA damage leads to carcinogenesis due to the accumulation of mutations in somatic cells. But DNA repair also plays key roles in the function of immune cells, and immunodeficiency is an important risk factor for many cancers. Thus, it is possible that emerging links between inter-individual variation in DNA repair capacity and cancer risk are driven, at least in part, by variation in immune function, but this idea is underexplored. In this review we present an overview of the current understanding of the links between cancer risk and both inter-individual variation in DNA repair capacity and inter-individual variation in immune function. We discuss factors that play a role in both types of variability, including age, lifestyle, and environmental exposures. In conclusion, we propose a research paradigm that incorporates functional studies of both genome integrity and the immune system to predict cancer risk and lay the groundwork for personalized prevention.
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Monro J, Lubransky A, Mishra S, Haszard J, Venn B. Metabolic and Blood Pressure Effects of Consuming Two Kiwifruit Daily for 7 Weeks: A Randomised Controlled Trial. Nutrients 2022; 14:nu14132678. [PMID: 35807858 PMCID: PMC9268970 DOI: 10.3390/nu14132678] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 06/24/2022] [Accepted: 06/25/2022] [Indexed: 02/04/2023] Open
Abstract
Background: Eating two kiwifruit before breakfast by equi-carbohydrate partial exchange of cereal has been associated with lower postprandial glucose and insulin, but it increases the intake of fruit sugar. We assessed the effects of kiwifruit ingestion at breakfast over 7 weeks on metabolic and physiologic factors. Method: Forty-three healthy Asian participants were randomised to ingest 500 mL of carbonated water (control) or 500 mL of carbonated water plus two kiwifruit (intervention), before breakfast. Three-day weighed diet records were taken before and at week 4 during the intervention. Overnight fasting blood samples were taken at baseline and week 7. Forty-two participants completed the study (n = 22 control, n = 20 intervention). Results: The kiwifruit group consumed more fructose, vitamin C, vitamin E, and carbohydrates as a percentage of energy compared with the control group (p < 0.01). There was no evidence of between-group changes in metabolic outcomes at the end of the intervention, with the following mean (95% confidence interval) differences in fasting blood samples: glucose 0.09 (−0.06, 0.24) mmol/L; insulin −1.6 (−3.5, 0.3) μU/mL; uric acid −13 (−30, 4) μmol/L; triglycerides −0.10 (−0.22, 0.03) mmol/L; and total cholesterol −0.05 (−0.24, 0.14) mmol/L. There was a −2.7 (−5.5, 0.0) mmHg difference in systolic blood pressure for the intervention group compared with the control group. Conclusion: Eating two kiwifruit as part of breakfast increased fruit consumption and intake of antioxidant nutrients without a change in fasting insulin. There was a difference in systolic blood pressure and no adverse fructose-associated increases in uric acid, triglycerides, or total cholesterol. This simple intervention may provide health benefits to other demographic groups.
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Affiliation(s)
- John Monro
- New Zealand Institute for Plant and Food Research Ltd., Palmerston North 4442, New Zealand;
- Correspondence: ; Tel.: +64-6-355-6137
| | - Alex Lubransky
- Department of Human Nutrition, University of Otago, Dunedin 9054, New Zealand; (A.L.); (J.H.); (B.V.)
| | - Suman Mishra
- New Zealand Institute for Plant and Food Research Ltd., Palmerston North 4442, New Zealand;
| | - Jillian Haszard
- Department of Human Nutrition, University of Otago, Dunedin 9054, New Zealand; (A.L.); (J.H.); (B.V.)
| | - Bernard Venn
- Department of Human Nutrition, University of Otago, Dunedin 9054, New Zealand; (A.L.); (J.H.); (B.V.)
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Mahmoud YI. Kiwi fruit (Actinidia deliciosa) ameliorates gentamicin-induced nephrotoxicity in albino mice via the activation of Nrf2 and the inhibition of NF-κB (Kiwi & gentamicin-induced nephrotoxicity). Biomed Pharmacother 2017; 94:206-218. [PMID: 28759758 DOI: 10.1016/j.biopha.2017.07.079] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 07/18/2017] [Accepted: 07/18/2017] [Indexed: 12/16/2022] Open
Abstract
Gentamicin is a potent aminoglycoside antibiotic, but the risk of nephrotoxicity limits its prolonged use. The toxicity of gentamicin is believed to result from oxidative stress, a condition that could be counteracted by dietary antioxidants. This study determines the possible renoprotective effects of kiwifruit against the pathophysiological and ultrastructural alterations induced by gentamicin. Mice were intraperitoneally injected with gentamicin (100mg/kg body weight) for eight consecutive days, and kiwi juice was administered for 8days, either concomitant to or after gentamicin injection. Gentamicin caused nephrotoxicity evidenced by the significant elevation of serum creatinine and blood urea nitrogen levels, along with significant reduction of serum sodium and potassium ions, compared to normal controls. This was associated with proximal tubular necrosis, lysosomal accumulation and mitochondrial alterations, together with glomerular atrophy, mesangial hypercellularity, and inflammatory cell infiltration. Moreover, immunohistochemical results pointed to the relevant role of Nrf2 and NF-κB in gentamicin-induced nephrotoxicity. Kiwi administration, especially when given after gentamicin injection, significantly ameliorated gentamicin-induced pathophysiological alterations, increased the nuclear immunoreactivity of Nrf2 and decreased that of NF-κB. In short, kiwi fruit shows a promising role as a nephroprotective agent against gentamicin-induced nephrotoxicity via attenuating oxidative stress, inflammation and cell death.
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Affiliation(s)
- Yomna I Mahmoud
- Zoology Department, Faculty of Science, Ain Shams University, Abbassia P.O. Box 11566, Cairo, Egypt.
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Neri M, Milazzo D, Ugolini D, Milic M, Campolongo A, Pasqualetti P, Bonassi S. Worldwide interest in the comet assay: a bibliometric study. Mutagenesis 2015; 30:155-63. [PMID: 25527738 DOI: 10.1093/mutage/geu061] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
The comet assay is a rapid, sensitive and relatively simple method for measuring DNA damage. A bibliometric study was performed to evaluate temporal and geographical trends, research quality and main areas of interest in scientific production in this field. A PubMed search strategy was developed and 7674 citations were retrieved in the period 1990-2013. Notably, the MeSH (Medical Subject Headings) term 'comet assay', officially introduced in 2000, is used by indexers only in two thirds of papers retrieved. Articles on the comet assay were published in 78 countries, spread over the 5 continents. The EU contributed the greatest output, producing >2900 articles with IF (42.0%) and totalling almost 10000 IF points, and was followed by USA. In the new millennium, research with this assay reached a plateau or slow decline in the most industrialised areas (USA, Germany, UK, Italy), while its use has boomed in emerging countries, with increases of 5- to 7-fold in the last 10 years in China, India and Brazil, for instance. This transition resulted in a slow decrease of scientific production quality, as the countries that increased their relative weight typically had lower mIFs. The most common MeSH terms used in papers using the comet assay referred to wide areas of interest, such as DNA damage and repair, cell survival and apoptosis, cancer and oxidative stress, occupational and environmental health. Keywords related to humans, rodents and cell culture were also frequently used. The top journal for the comet assay articles was found to be Mutation Research, followed by Mutagenesis. Most papers using the comet assay as a biomarker were published in genetic and toxicology journals, with a stress on environmental and occupational disciplines.
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Affiliation(s)
- Monica Neri
- Clinical and Molecular Epidemiology, Area of Systems Approaches and Non Communicable Diseases, IRCCS San Raffaele Pisana, Via di Val Cannuta, 247, 00166, Rome, Italy
| | - Daniele Milazzo
- Service of Medical Statistics and Information Technology - Fatebenefratelli Foundation for Health Research and Education, AFaR Division, Lungotevere de' Cenci, 5, 00186, Rome, Italy
| | - Donatella Ugolini
- Department of Internal Medicine, University of Genoa, Viale Benedetto XV, 6, 16132, Genoa, Italy, Unit of Clinical Epidemiology, IRCCS AOU San Martino-IST-National Cancer Research Institute, Largo Rosanna Benzi, 10, 16132, Genoa, Italy and
| | - Mirta Milic
- Clinical and Molecular Epidemiology, Area of Systems Approaches and Non Communicable Diseases, IRCCS San Raffaele Pisana, Via di Val Cannuta, 247, 00166, Rome, Italy, Mutagenesis Unit, Institute for Medical Research and Occupational Health, Ksaverska cesta, 2, 10000, Zagreb, Croatia
| | - Alessandra Campolongo
- Service of Medical Statistics and Information Technology - Fatebenefratelli Foundation for Health Research and Education, AFaR Division, Lungotevere de' Cenci, 5, 00186, Rome, Italy
| | - Patrizio Pasqualetti
- Clinical and Molecular Epidemiology, Area of Systems Approaches and Non Communicable Diseases, IRCCS San Raffaele Pisana, Via di Val Cannuta, 247, 00166, Rome, Italy, Service of Medical Statistics and Information Technology - Fatebenefratelli Foundation for Health Research and Education, AFaR Division, Lungotevere de' Cenci, 5, 00186, Rome, Italy
| | - Stefano Bonassi
- Clinical and Molecular Epidemiology, Area of Systems Approaches and Non Communicable Diseases, IRCCS San Raffaele Pisana, Via di Val Cannuta, 247, 00166, Rome, Italy,
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Cadet J, Wagner JR. Oxidatively generated base damage to cellular DNA by hydroxyl radical and one-electron oxidants: similarities and differences. Arch Biochem Biophys 2014; 557:47-54. [PMID: 24820329 DOI: 10.1016/j.abb.2014.05.001] [Citation(s) in RCA: 107] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Revised: 04/23/2014] [Accepted: 05/01/2014] [Indexed: 01/05/2023]
Abstract
Hydroxyl radical (OH) and one-electron oxidants that may be endogenously formed through oxidative metabolism, phagocytosis, inflammation and pathological conditions constitute the main sources of oxidatively generated damage to cellular DNA. It is worth mentioning that exposure of cells to exogenous physical agents (UV light, high intensity UV laser, ionizing radiation) and chemicals may also induce oxidatively generated damage to DNA. Emphasis is placed in this short review article on the mechanistic aspects of OH and one-electron oxidant-mediated formation of single and more complex damage (tandem lesions, intra- and interstrand cross-links, DNA-protein cross-links) in cellular DNA arising from one radical hit. This concerns DNA modifications that have been accurately measured using suitable analytical methods such as high performance liquid chromatography coupled with electrospray ionization tandem mass spectrometry. Evidence is provided that OH and one-electron oxidants after generating neutral radicals and base radical cations respectively may partly induce common degradation pathways. In addition, selective oxidative reactions giving rise to specific degradation products of OH and one-electron oxidation reactions that can be used as representative biomarkers of these oxidants have been identified.
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Affiliation(s)
- Jean Cadet
- Institut Nanosciences et Cryogénie, CEA/Grenoble, F-38054 Grenoble Cedex 9, France; Département de Médecine Nucléaire et Radiobiologie, Faculté de Médecine des Sciences de la santé, Université de Sherbrooke, Sherbrooke, Québec J1H 5N4, Canada.
| | - J Richard Wagner
- Département de Médecine Nucléaire et Radiobiologie, Faculté de Médecine des Sciences de la santé, Université de Sherbrooke, Sherbrooke, Québec J1H 5N4, Canada
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Ho CK, Choi SW, Siu PM, Benzie IFF. Effects of single dose and regular intake of green tea (Camellia sinensis) on DNA damage, DNA repair, and heme oxygenase-1 expression in a randomized controlled human supplementation study. Mol Nutr Food Res 2014; 58:1379-83. [DOI: 10.1002/mnfr.201300751] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 01/15/2014] [Accepted: 01/29/2014] [Indexed: 11/11/2022]
Affiliation(s)
- Cyrus K. Ho
- Department of Health Technology and Informatics; The Hong Kong Polytechnic University; Kowloon Hong Kong
| | - Siu-wai Choi
- Department of Health Technology and Informatics; The Hong Kong Polytechnic University; Kowloon Hong Kong
| | - Parco M. Siu
- Department of Health Technology and Informatics; The Hong Kong Polytechnic University; Kowloon Hong Kong
| | - Iris F. F. Benzie
- Department of Health Technology and Informatics; The Hong Kong Polytechnic University; Kowloon Hong Kong
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