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Barciela P, Perez-Vazquez A, Prieto MA. Azo dyes in the food industry: Features, classification, toxicity, alternatives, and regulation. Food Chem Toxicol 2023:113935. [PMID: 37429408 DOI: 10.1016/j.fct.2023.113935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/06/2023] [Accepted: 07/06/2023] [Indexed: 07/12/2023]
Abstract
Azo dyes, including Tartrazine, Sunset Yellow, and Carmoisine, are added to foods to provide color, but they have no value with regard to nutrition, food preservation, or health benefits. Because of their availability, affordability, stability, and low cost, and because they provide intense coloration to the product without contributing unwanted flavors, the food industry often prefers to use synthetic azo dyes rather than natural colorants. Food dyes have been tested by regulatory agencies responsible for guaranteeing consumer safety. Nevertheless, the safety of these colorants remains controversial; they have been associated with adverse effects, particularly due to the reduction and cleavage of the azo bond. Here, we review the features, classification, regulation, toxicity, and alternatives to the use of azo dyes in food.
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Affiliation(s)
- P Barciela
- Universidade de Vigo, Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, E32004, Ourense, Spain
| | - A Perez-Vazquez
- Universidade de Vigo, Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, E32004, Ourense, Spain
| | - M A Prieto
- Universidade de Vigo, Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, E32004, Ourense, Spain.
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Zhu C, Han S, Zeng X, Zhu C, Pu Y, Sun Y. Multifunctional thermo-sensitive hydrogel for modulating the microenvironment in Osteoarthritis by polarizing macrophages and scavenging RONS. J Nanobiotechnology 2022; 20:221. [PMID: 35526013 PMCID: PMC9077879 DOI: 10.1186/s12951-022-01422-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 04/13/2022] [Indexed: 02/06/2023] Open
Abstract
Osteoarthritis (OA) is a common degenerative joint disease that can lead to disability. Blocking the complex malignant feedback loop system dominated by oxidative stress and pro-inflammatory factors is the key to treating OA. Here, we develop a multifunctional composite thermo-sensitive hydrogel (HPP@Cu gel), which is utilized by Poloxamer 407 (P407) and hyaluronic acid (HA) mixture as the gel matrix, then physically mixed with copper nanodots (Cu NDs) and platelet-rich plasma (PRP). Cu NDs is a novel nano-scavenger of reactive oxygen and nitrogen species (RONS) with efficient free radical scavenging activity. HPP@Cu gel is injected into the articular cavity, where it form an in situ gel that slowly released Cu NDs, HA, and PRP, prolonging the duration of drug action. Our results indicate that HPP@Cu gel could efficiently remove RONS from inflammatory sites and promote repolarization of macrophages to an anti-inflammatory phenotype. The HPP@Cu gel therapy dramatically reduces cartilage degradation and inflammatory factor production in OA rats. This study provides a reliable reference for the application of injectable hydrogels in inflammatory diseases associated with oxidative stress.
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Affiliation(s)
- Chunrong Zhu
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, 266021, People's Republic of China
| | - Shangcong Han
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, 266021, People's Republic of China
| | - Xianhu Zeng
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, 266021, People's Republic of China
| | - Chunxiao Zhu
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, 266021, People's Republic of China
| | - Yuji Pu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, People's Republic of China
| | - Yong Sun
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, 266021, People's Republic of China.
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Liu C, Yu Y, Liu H, Xin H. Effect of different copper oxide particles on cell division and related genes of soybean roots. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 163:205-214. [PMID: 33862500 DOI: 10.1016/j.plaphy.2021.03.051] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 03/24/2021] [Indexed: 06/12/2023]
Abstract
In this study, soybean (Glycine max) seeds were cultured in distilled water. When the roots were about 2 cm, they were separately treated with copper oxide bulk particles (CuO BPs) suspensions and copper oxide nanoparticle (CuO NPs) suspensions in different concentrations (2, 5 and 10 mg L-1) for 24 h and 48 h. Results showed that different concentrations of CuO BPs suspensions had little effect on the structure and cell division of meristematic zone. After CuO NPs treatment, Cu content increased in the roots, accompanied by high reactive oxygen species, malondialdehyde and relative electrical conductivity. CuO NPs significantly inhibited the growth of soybean roots over exposure time and the concentration. The destruction of CuO NPs occurred first in the promeristem, and then in the primary meristem of the meristematic zone. The meristematic cells of roots showed vacuolization, the nuclei swelled and deformed. After 10 mg L-1 CuO NPs treatment for 48 h, the mitotic index of root cells decreased by 14.28%, and the micronucleus rate increased by 14.33‰. Some cell division genes, such as GmCYCB1; 2, GmCYCU4; 1, GmCYCA1; 1, GmCYCP3; 1, GmCYCD3; 1 and CDC20; 1 were up-regulated or down-regulated with CuO NPs treatments.
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Affiliation(s)
- Cai Liu
- University Key Laboratory of Plant Biotechnology in Shandong Province, College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, China.
| | - Yanchong Yu
- University Key Laboratory of Plant Biotechnology in Shandong Province, College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, China.
| | - Hanzhu Liu
- University Key Laboratory of Plant Biotechnology in Shandong Province, College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, China.
| | - Hua Xin
- University Key Laboratory of Plant Biotechnology in Shandong Province, College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, China.
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İlce Z, Bekdemir FO, Pandır D. Acute toxic effect of lipopolysaccharides to blood tissue in rats and responses to vitamin E and sodium selenite. J Food Biochem 2019; 43:e13060. [PMID: 31576601 DOI: 10.1111/jfbc.13060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 07/18/2019] [Accepted: 09/11/2019] [Indexed: 11/29/2022]
Abstract
This work has been prepared to find out changes in the biochemicals with DNA damage, micronucleus, and apoptosis to lipopolysaccharides (LPS) alone or vitamin E (VE) and sodium selenite (SS) in rats' blood tissue. Rats were divided into eight groups according to the treatment into control vitamin E (VE) treatment group (200 mg/kg bw), sodium selenite (SS) treatment (0.35 mg/kg bw) group, VE + SS treatment group (200 + 0.35 mg/kg bw), LPS treatment group (10 mg/kg bw), LPS + VE (10 + 200 mg/kg bw), LPS + SS treatment (10 + 0.35 mg/kg bw), and LPS + SS+VE treatment (10 + 0.35 + 200 mg/kg bw) group for 6 hr. LPS increased malondialdehyde (MDA) level and decreased antioxidant enzymes' activities in rat erythrocytes and leukocytes. DNA damage of leukocytes with comet assay and RAPD-PCR was detected in LPS treatment group. The levels of micronucleus and apoptosis percentage were increased significantly at the end of 6 hr. VE and/or SS protected the LPS-induced erythrocytes and leukocytes against damage as they have caused amelioration of rats by altering the results. As a result, the co-administration of VE and/or SS against LPS-induced damage provides protection. VE and/or SS in patients and animal models with sepsis must be taken in the diet because they are protective against the cellular degradation caused by oxidative damage. PRACTICAL APPLICATIONS: LPS obtained from E. coli is used more frequently in experimental sepsis studies. When LPS is administered to experimental animals, interstitial pneumonia, adult respiratory fatal syndrome, acute tubular necrosis, and fatal effects such as coagulopathy and hypoglycemia may be seen in these animals. The co-treatment of VE and SS may be more effective than using them alone against LPS.
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Affiliation(s)
- Zehra İlce
- Graduate School of Natural and Applied Sciences, Department of Biology, Bozok University, Yozgat, Turkey
| | - Fatih Oğuz Bekdemir
- Graduate School of Natural and Applied Sciences, Department of Biology, Bozok University, Yozgat, Turkey
| | - Dilek Pandır
- Faculty of Arts and Science, Department of Biology, Bozok University, Yozgat, Turkey
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Pandır D, Hilooglu M, Kocakaya M. Assessment of anticytotoxic effect of lichen Cladonia foliacae extract on Allium cepa root tips. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:32478-32490. [PMID: 30238257 DOI: 10.1007/s11356-018-3221-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 09/13/2018] [Indexed: 06/08/2023]
Abstract
The aim of this study is to investigate the protective effect of lichen Cladonia foliacae (Huds.) (CF) on hydrogen peroxide (H2O2)-induced toxicity through cell death, chromosome aberrations, mitotic index, oxidative stress parameters, and DNA damage in a Allium cepa root meristematic cells. Any chemical was not given for control group. Two doses of H2O2 (3 and 7%) were given to the roots for 1 h and the root tips were treated with CF water extract (50 and 100 μL) with increasing times for treatment groups. The roots were taken from control and treatment groups, and mitotic index, cell death, and chromosome aberrations were performed by light microscope. Changing antioxidant capacity of roots was revealed by FRAP and TEAC assay. Also, DNA damage was measured by comet assay and RAPD-PCR technique. Chromosome aberration values were obtained with increasing concentrations with longer treatment times, such as chromosome bridge, vagrant, and polyploidy in both groups. Increasing exposure doses of H2O2 caused decreasing mitotic index values at 72 h. TEAC and FRAP assay demonstrated that roots' capacity of antioxidant was altered by increasing concentrations of H2O2. The tail DNA% and tail length significantly increased in all exposure times when compared to control group. Three and seven percent of H2O2 caused the genotoxic effect on genetic material at 72 h according to RAPD-PCR technique. Increasing the doses of H2O2 resulted in increased toxicity to all studied parameters of A. cepa, but CF extract altered all changing parameters of A. cepa root cell. The H2O2 tested in this study have cytotoxic and mutagenic potential, but extract of CF was protective against H2O2 caused toxicological changes. But, it did not protect completely in the A. cepa root meristematic cells.
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Affiliation(s)
- Dilek Pandır
- Faculty of Arts and Science, Department of Biology, Bozok University, 66100, Yozgat, Turkey.
| | - Müge Hilooglu
- Graduate School of Natural and Applied Sciences, Department of Biology, Bozok University, Yozgat, Turkey
| | - Mustafa Kocakaya
- Technical College of Boğazlayan, Bozok University, Yozgat, Turkey
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I Algwaiz H. Cytological Effects of Bleaching Agent (Quneex) on Plant Cells and Plant DNA. Pak J Biol Sci 2018; 21:205-214. [PMID: 30311483 DOI: 10.3923/pjbs.2018.205.214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND AND OBJECTIVE There have been a number of reported drawbacks and efficacy issues regarding the use of bleaching agents in the plant industry. This study was conducted to determine the cytological effects of the bleaching agent (Quneex) on the plant cells and plant DNA using the Allium cepa assay. MATERIALS AND METHODS It was subjected sixteen root meristems of A. cepa to different concentrations of the bleaching agent (0.1, 0.2, 0.3, 0.4 and 0.5%) with different periods of time (6, 12 and 24 h). Recovery was done for 6, 12 and 24 h after exposure. RESULTS The mitotic index significantly decreased with time and also decreased with increase in the concentration of the bleaching agent. Abnormal chromosomal changes reflecting mutagenesis including stickiness, laggards, bridges, C-metaphase, star-metaphase, binucleation, polyploidy, disturbance and multinucleation were observed in the different concentrations and periods of time. After recovery, a slow increase in the mitotic index was observed. All treatments with or without recovery for 12 and 24 h resulted in reduction in the amount of DNA. CONCLUSION Bleaching agents similar to Quneex containing sodium hypochlorite have mutagenic properties that can be potentially hazardous to the environment and also to humans. Thus, there is a need to regulate the use and disposal of such chemicals into the environment particularly to the sewers, to prevent contamination of potable water, plant and biodiverse aquatic animals.
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