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Zou MS, Xie LY, Zhou W, Xiang Y, Lei C, Huang D. Analysis of the effect of 60Co irradiation sterilization on the chemical composition of volatile organic compounds in Rhizoma Acori Tatarinowii using GC-IMS. Nat Prod Res 2024:1-5. [PMID: 38206882 DOI: 10.1080/14786419.2023.2301485] [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: 10/17/2023] [Accepted: 12/27/2023] [Indexed: 01/13/2024]
Abstract
The volatile organic compounds (VOCs) of Rhizoma Acori Tatarinowii were extracted via steam distillation and then irradiated with 60Co-γ rays, in which doses of 60Co-γ 0, 5, and 10 kGy were selected to irradiate the VOCs. Finally, gas chromatography-ion mobility spectrometry (GC-IMS) was used to compare the differences between the VOCs, and then qualitatively analyse the components and contents of each part of the VOCs The results showed that under the three irradiation doses of 60Co-γ 0, 5 and 10 kGy, the VOCs of unirradiated and 5 kGy-irradiated samples were closer, and the samples irradiated at a 10 kGy dose were quite different from the other two components, meaning that when the calamus medicinal materials were sterilised by means of 60Co irradiation, the dose of 5 kGy was closer to the original compound content of the medicinal materials.
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Affiliation(s)
- Man-Shu Zou
- State Key Laboratory of Chinese Medicine Powder and Medicine Innovation in Hunan (Incubation), Hunan University of Chinese Medicine, Changsha, P. R. China
- Science and Technology Innovation Center, Hunan University of Chinese Medicine, Changsha, P. R. China
| | - Li-Yan Xie
- Science and Technology Innovation Center, Hunan University of Chinese Medicine, Changsha, P. R. China
| | - Wei Zhou
- Science and Technology Innovation Center, Hunan University of Chinese Medicine, Changsha, P. R. China
| | - Yun Xiang
- State Key Laboratory of Chinese Medicine Powder and Medicine Innovation in Hunan (Incubation), Hunan University of Chinese Medicine, Changsha, P. R. China
- Science and Technology Innovation Center, Hunan University of Chinese Medicine, Changsha, P. R. China
| | - Chang Lei
- State Key Laboratory of Chinese Medicine Powder and Medicine Innovation in Hunan (Incubation), Hunan University of Chinese Medicine, Changsha, P. R. China
- Science and Technology Innovation Center, Hunan University of Chinese Medicine, Changsha, P. R. China
| | - Dan Huang
- State Key Laboratory of Chinese Medicine Powder and Medicine Innovation in Hunan (Incubation), Hunan University of Chinese Medicine, Changsha, P. R. China
- Science and Technology Innovation Center, Hunan University of Chinese Medicine, Changsha, P. R. China
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2
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Feng J, Qin C, Liu X, Li R, Wang C, Li C, Du G, Guo Q. Nematicidal Coumarins from Cnidium monnieri Fruits and Angelica dahurica Roots and Their Physiological Effect on Pine Wood Nematode ( Bursaphelenchus xylophilus). Molecules 2023; 28:molecules28104109. [PMID: 37241850 DOI: 10.3390/molecules28104109] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 05/02/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023] Open
Abstract
Pine wood nematode (PWN), Bursaphelenchus xylophilus, is a major pathogen of pine wilt disease (PWD), which is a devastating disease affecting pine trees. Eco-friendly plant-derived nematicides against PWN have been considered as promising alternatives to control PWD. In this study, the ethyl acetate extracts of Cnidium monnieri fruits and Angelica dahurica roots were confirmed to have significant nematicidal activity against PWN. Through bioassay-guided fractionations, eight nematicidal coumarins against PWN were separately isolated from the ethyl acetate extracts of C. monnieri fruits and A. dahurica roots, and they were identified to be osthol (Compound 1), xanthotoxin (Compound 2), cindimine (Compound 3), isopimpinellin (Compound 4), marmesin (Compound 5), isoimperatorin (Compound 6), imperatorin (Compound 7), and bergapten (Compound 8) by mass and nuclear magnetic resonance (NMR) spectral data analysis. Coumarins 1-8 were all determined to have inhibitory effects on the egg hatching, feeding ability, and reproduction of PWN. Moreover, all eight nematicidal coumarins could inhibit the acetylcholinesterase (AChE) and Ca2+ ATPase of PWN. Cindimine 3 from C. monnieri fruits showed the strongest nematicidal activity against PWN, with an LC50 value of 64 μM at 72 h, and the highest inhibitory effect on PWN vitality. In addition, bioassays on PWN pathogenicity demonstrated that the eight nematicidal coumarins could effectively relieve the wilt symptoms of black pine seedlings infected by PWN. The research identified several potent botanical nematicidal coumarins for use against PWN, which could contribute to the development of greener nematicides for PWD control.
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Affiliation(s)
- Jiale Feng
- College of Life Sciences, Qingdao University, Qingdao 266071, China
| | - Chenglei Qin
- College of Life Sciences, Qingdao University, Qingdao 266071, China
| | - Xiaohong Liu
- School of Pharmacy, Qingdao University, Qingdao 266071, China
| | - Ronggui Li
- College of Life Sciences, Qingdao University, Qingdao 266071, China
| | - Chao Wang
- College of Life Sciences, Qingdao University, Qingdao 266071, China
| | - Chunhan Li
- College of Life Sciences, Qingdao University, Qingdao 266071, China
| | - Guicai Du
- College of Life Sciences, Qingdao University, Qingdao 266071, China
| | - Qunqun Guo
- College of Life Sciences, Qingdao University, Qingdao 266071, China
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3
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Zhang Y, Liu Y, Liang X, Wu C, Liu X, Wu M, Yao X, Qiao Y, Zhan X, Chen Q. Exogenous methyl jasmonate induced cassava defense response and enhanced resistance to Tetranychus urticae. EXPERIMENTAL & APPLIED ACAROLOGY 2023; 89:45-60. [PMID: 36635606 DOI: 10.1007/s10493-022-00773-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 12/30/2022] [Indexed: 05/21/2023]
Abstract
Exogenous application of methyl jasmonate (MeJA) could activate plant defense response against the two-spotted spider mite (TSSM), Tetranychus urticae Koch, in different plants. However, whether MeJA can also serve as an elicitor in cassava (Manihot esculenta Crantz) remains unknown. In this study, induced defense responses were investigated in TSSM-resistant cassava variety C1115 and TSSM-susceptible cassava variety KU50 when applied with MeJA. The performance of TSSM feeding on cassava plants that were pre-treated with various concentrations of MeJA was first evaluated. Subsequently, the activities of antioxidative enzymes (superoxide dismutase and catalase), detoxification enzymes (glutathione S-transferase, cytochrome P450 and carboxylesterase) and digestive enzymes (protease, amylase and invertase) in TSSM were analyzed at days 1, 2, 4 and 8 post-feeding. The results showed that MeJA treatment can induce cassava defense responses to TSSM in terms of reducing egg production and adult longevity as well as slowing development and prolonging the egg stage. Noticeably, C1115 exhibited stronger inhibition of TSSM development and reproduction than KU50. In addition, the activities of all the tested enzymes were induced in both C1115 and KU50, the most in C1115. We conclude that exogenous methyl jasmonate can induce cassava defense responses and enhance resistance to TSSM.
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Affiliation(s)
- Yao Zhang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering / Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, China
| | - Ying Liu
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences / Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Haikou, 571101, China.
- Sanya Research Academy, Chinese Academy of Tropical Agriculture Science / Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Sanya, 572000, China.
| | - Xiao Liang
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences / Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Haikou, 571101, China.
- Sanya Research Academy, Chinese Academy of Tropical Agriculture Science / Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Sanya, 572000, China.
| | - Chunling Wu
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences / Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Haikou, 571101, China
- Sanya Research Academy, Chinese Academy of Tropical Agriculture Science / Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Sanya, 572000, China
| | - Xiaoqiang Liu
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences / Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Haikou, 571101, China
- Sanya Research Academy, Chinese Academy of Tropical Agriculture Science / Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Sanya, 572000, China
| | - Mufeng Wu
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences / Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Haikou, 571101, China
- Sanya Research Academy, Chinese Academy of Tropical Agriculture Science / Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Sanya, 572000, China
| | - Xiaowen Yao
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences / Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Haikou, 571101, China
- Sanya Research Academy, Chinese Academy of Tropical Agriculture Science / Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Sanya, 572000, China
| | - Yang Qiao
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences / Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Haikou, 571101, China
- Sanya Research Academy, Chinese Academy of Tropical Agriculture Science / Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Sanya, 572000, China
| | - Xue Zhan
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering / Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, China
| | - Qing Chen
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences / Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Haikou, 571101, China.
- Sanya Research Academy, Chinese Academy of Tropical Agriculture Science / Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Sanya, 572000, China.
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Li X, Wu Q, Wu J, Zeng L, Cheng D, Xian J, Lu Y. Effects of four chemosterilants on Bactrocera tau. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 243:114028. [PMID: 36037635 DOI: 10.1016/j.ecoenv.2022.114028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 08/08/2022] [Accepted: 08/24/2022] [Indexed: 06/15/2023]
Abstract
Bactrocera tau (Walker) is a fly pest species mainly distributed in Southeast Asia and the South Pacific; it causes substantial ecological and economic issues because of its destructiveness and rapid reproduction. Chemical sterilization technology can reduce the use of insecticides and is widely applied for insect pest control. In this study, the sterilization efficacy of varying concentrations of four chemosterilants, namely, hexamethylphosphoramide (HMPA), CSII Aqua, 5-fluorouracil (5-FU), and colchicine, on adult pumpkin flies was investigated. The results indicated that a solution of 0.03% HMPA had the highest sterilization efficacy. When the number of sterile males was equal to or exceeded 20 times that of untreated males, the hatching rate of offspring eggs was less than 10%. Chemosterilant treatment significantly altered the levels of acid phosphatase (ACP), alkaline phosphatase (AKP), and B. tau vitellogenin (BtVg); these substances have an important impact on reproductive development. The treatment also decreased the size of the reproductive organs (i.e., testes and ovaries). Our results suggest that 0.03% HMPA has unique sterilization properties and may represent a new chemical agent for the control of B. tau populations in agricultural settings.
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Affiliation(s)
- XinLian Li
- Department of Entomology, College of Plant Protection, South China Agricultural University, Guangzhou 510640, China.
| | - QiSong Wu
- Department of Entomology, College of Plant Protection, South China Agricultural University, Guangzhou 510640, China.
| | - Jiao Wu
- Department of Entomology, College of Plant Protection, South China Agricultural University, Guangzhou 510640, China.
| | - Ling Zeng
- Department of Entomology, College of Plant Protection, South China Agricultural University, Guangzhou 510640, China.
| | - DaiFeng Cheng
- Department of Entomology, College of Plant Protection, South China Agricultural University, Guangzhou 510640, China.
| | - JiDong Xian
- Department of Entomology, College of Plant Protection, South China Agricultural University, Guangzhou 510640, China.
| | - YongYue Lu
- Department of Entomology, College of Plant Protection, South China Agricultural University, Guangzhou 510640, China.
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Gagnaire B, Bonnet M, Tchamitchian S, Cavalié I, Della-Vedova C, Dubourg N, Adam-Guillermin C, Brunet JL, Belzunces LP. Physiological effects of gamma irradiation in the honeybee, Apis mellifera. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 174:153-163. [PMID: 30825738 DOI: 10.1016/j.ecoenv.2019.02.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/17/2019] [Accepted: 02/11/2019] [Indexed: 06/09/2023]
Abstract
Terrestrial ecosystems are exposed to various kinds of pollutants, including radionuclides. The honeybee, Apis mellifera, is commonly used in ecotoxicology as a model species for evaluating the effects of pollutants. In the present study, honeybees were irradiated right after birth for 14 days with gamma rays at dose rates ranging between 4.38 × 10-3 and 588 mGy/d. Biological tissues (head, intestine and abdomen) were sampled at D3, D10 and D14. Ten different physiological markers involved in nervous (acetylcholinesterase (AChE)), antioxidative (catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GPx) and glutathione-S-transferase (GST)), immune system (phenoloxidase (PO)) and metabolism (carboxylesterases (CaEs) and alkaline phosphatase (ALP)) were measured. Univariate analyses were conducted to determine whether each individual biomarker response was positively or negatively correlated with the dose rate. Then, multivariate analyses were applied to investigate the relationships between all the biomarker responses. Although no mortality occurred during the experiment, several biomarkers varied significantly in relation to the dose rate. Globally, the biomarkers of antioxidant and immune systems decreased as the dose rate increased. Reversible effects on the indicator of the neural system were found. Concerning indicators of metabolism (carboxylesterases), variations occurred but no clear pattern was found. Taken altogether, these results help better understand the effects of ionizing radiation on bees by identifying relevant physiological markers of effects. These results could improve the assessment of the environmental risk due to ionizing radiation in terrestrial ecosystems.
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Affiliation(s)
- B Gagnaire
- Institut de Radioprotection et de Sureté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Cadarache, Saint-Paul-lez-Durance 13115, France.
| | - M Bonnet
- INRA, Institut National de la Recherche Agronomique, Laboratoire de Toxicologie Environnementale, UR 406 A&E, CS 40509, 84914 Avignon Cedex 9, France
| | - S Tchamitchian
- INRA, Institut National de la Recherche Agronomique, Laboratoire de Toxicologie Environnementale, UR 406 A&E, CS 40509, 84914 Avignon Cedex 9, France
| | - I Cavalié
- Institut de Radioprotection et de Sureté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Cadarache, Saint-Paul-lez-Durance 13115, France
| | - C Della-Vedova
- Institut de Radioprotection et de Sureté Nucléaire (IRSN), PSE-ENV/SRTE/LRTA, Cadarache, Saint-Paul-lez-Durance 13115, France
| | - N Dubourg
- Institut de Radioprotection et de Sureté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Cadarache, Saint-Paul-lez-Durance 13115, France
| | - C Adam-Guillermin
- Institut de Radioprotection et de Sureté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Cadarache, Saint-Paul-lez-Durance 13115, France
| | - J-L Brunet
- INRA, Institut National de la Recherche Agronomique, Laboratoire de Toxicologie Environnementale, UR 406 A&E, CS 40509, 84914 Avignon Cedex 9, France
| | - L P Belzunces
- INRA, Institut National de la Recherche Agronomique, Laboratoire de Toxicologie Environnementale, UR 406 A&E, CS 40509, 84914 Avignon Cedex 9, France.
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Wang D, Xie N, Yi S, Liu C, Jiang H, Ma Z, Feng J, Yan H, Zhang X. Bioassay-guided isolation of potent aphicidal Erythrina alkaloids against Aphis gossypii from the seed of Erythrina crista-galli L. PEST MANAGEMENT SCIENCE 2018; 74:210-218. [PMID: 28799721 DOI: 10.1002/ps.4698] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 08/03/2017] [Accepted: 08/07/2017] [Indexed: 05/10/2023]
Abstract
BACKGROUND The cotton aphid (Aphis gossypii Glover) is one of the most invasive pests of cotton. Many botanical phytochemicals have a long history as a source of insecticides, and as templates for new insecticides. This study was undertaken to isolate aphicidal compounds from the seeds of Erythrina crista-galli L. using the bioassay-guided isolation method. RESULTS Three novel and 11 known Erythrina alkaloids were isolated. Erysodine (9), erysovine (10), erysotrine (8) and erythraline (11) showed moderate to excellent aphicidal activity with LD50 values of 7.48, 6.68, 5.13 and 4.67 ng aphid-1 , respectively. The Potter spray tower bioassay gave corresponding LC50 values of 186.81, 165.35, 163.74 and 112.78 µg ml-1 . A unique substructure, which presents an sp3 methylene at C-8, a non-oxygenated site at N-9 and a conjugated dienes group (Δ1,2 and Δ6,7 ), plays a crucial role in the aphicidal activity. Application of erythraline (11) led to different increases in the activities of superoxide dismutase, catalase and glutathione S-transferase. CONCLUSION The study demonstrated that the Erythrina alkaloids erysodine (9), erysovine (10), erysotrine (8) and erythraline (11) have potential use as botanical aphicides for commercial application, or as templates for the development of new insecticides. © 2017 Society of Chemical Industry.
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Affiliation(s)
- Delong Wang
- Research & Development Center of Biorational Pesticide, Northwest A&F University, Yangling, Shaanxi, China
| | - Na Xie
- Research & Development Center of Biorational Pesticide, Northwest A&F University, Yangling, Shaanxi, China
| | - Shandong Yi
- Research & Development Center of Biorational Pesticide, Northwest A&F University, Yangling, Shaanxi, China
| | - Chuanyuan Liu
- Research & Development Center of Biorational Pesticide, Northwest A&F University, Yangling, Shaanxi, China
| | - Hui Jiang
- Research & Development Center of Biorational Pesticide, Northwest A&F University, Yangling, Shaanxi, China
| | - Zhiqing Ma
- Research & Development Center of Biorational Pesticide, Northwest A&F University, Yangling, Shaanxi, China
| | - Juntao Feng
- Research & Development Center of Biorational Pesticide, Northwest A&F University, Yangling, Shaanxi, China
| | - He Yan
- Research & Development Center of Biorational Pesticide, Northwest A&F University, Yangling, Shaanxi, China
| | - Xing Zhang
- Research & Development Center of Biorational Pesticide, Northwest A&F University, Yangling, Shaanxi, China
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Kumar D, Kumari S, Salian SR, Uppangala S, Kalthur G, Challapalli S, Chandraguthi SG, Kumar P, Adiga SK. Genetic Instability in Lymphocytes is Associated With Blood Plasma Antioxidant Levels in Health Care Workers Occupationally Exposed to Ionizing Radiation. Int J Toxicol 2016. [DOI: org/10.1177/1091581815625593] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
Earlier reports have suggested that exposure to radiation at workplace may induce cytogenetic abnormalities. However, the association between plasma antioxidants and the cytogenetic abnormalities in these patients has not been elucidated till now. Hence, the present study was undertaken to determine the relationship between the cytogenetic abnormalities, plasma antioxidant system, and the radiation exposure levels in men who were occupationally exposed to ionizing radiation. The study included 134 male volunteers, among whom 83 were occupationally exposed to ionizing radiation. Incidence of micronuclei and chromosomal aberration was assessed in lymphocytes. Total and reduced glutathione (GSH), total antioxidant capacity (TAC), superoxide dismutase (SOD), and lipid peroxidation were assessed in the plasma. The micronuclei frequency and chromosomal aberrations were significantly higher in the exposed group in comparison to the nonexposed group ( P < 0.01-0.0001). Similarly, GSH, TAC, and SOD in the blood plasma were significantly higher in the exposed group than the nonexposed group ( P < 0.01-0.0001). However, the level of malondialdehyde, which is an indicator of lipid peroxidation, did not differ significantly between both the groups. Importantly, radiation absorbed dose exhibited a positive correlation with the incidence of micronuclei in blood lymphocytes but not with chromosomal aberrations. This study shows that the susceptibility of peripheral blood lymphocytes to chromosomal damage is associated with plasma antioxidant levels. Furthermore, increased levels of blood plasma GSH, TAC, and SOD in occupationally exposed individuals could be an adaptive measure in response to oxidative stress to protect somatic cell genetic integrity.
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Affiliation(s)
- Dayanidhi Kumar
- Department of Clinical Embryology, Obstetrics and Gynecology, Kasturba Medical College, Manipal University, Manipal, India
| | - Sandhya Kumari
- Department of Clinical Embryology, Obstetrics and Gynecology, Kasturba Medical College, Manipal University, Manipal, India
| | - Sujith Raj Salian
- Department of Clinical Embryology, Obstetrics and Gynecology, Kasturba Medical College, Manipal University, Manipal, India
| | - Shubhashree Uppangala
- Department of Clinical Embryology, Obstetrics and Gynecology, Kasturba Medical College, Manipal University, Manipal, India
| | - Guruprasad Kalthur
- Department of Clinical Embryology, Obstetrics and Gynecology, Kasturba Medical College, Manipal University, Manipal, India
| | - Srinivas Challapalli
- Department of Radiotherapy, Kasturba Medical College, Manipal University, Manipal, India
| | | | - Pratap Kumar
- Department of Obstetrics & Gynecology, Kasturba Medical College, Manipal University, Manipal, India
| | - Satish Kumar Adiga
- Department of Clinical Embryology, Obstetrics and Gynecology, Kasturba Medical College, Manipal University, Manipal, India
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8
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Kumar D, Kumari S, Salian SR, Uppangala S, Kalthur G, Challapalli S, Chandraguthi SG, Kumar P, Adiga SK. Genetic Instability in Lymphocytes is Associated With Blood Plasma Antioxidant Levels in Health Care Workers Occupationally Exposed to Ionizing Radiation. Int J Toxicol 2016; 35:327-35. [PMID: 26758870 DOI: 10.1177/1091581815625593] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Earlier reports have suggested that exposure to radiation at workplace may induce cytogenetic abnormalities. However, the association between plasma antioxidants and the cytogenetic abnormalities in these patients has not been elucidated till now. Hence, the present study was undertaken to determine the relationship between the cytogenetic abnormalities, plasma antioxidant system, and the radiation exposure levels in men who were occupationally exposed to ionizing radiation. The study included 134 male volunteers, among whom 83 were occupationally exposed to ionizing radiation. Incidence of micronuclei and chromosomal aberration was assessed in lymphocytes. Total and reduced glutathione (GSH), total antioxidant capacity (TAC), superoxide dismutase (SOD), and lipid peroxidation were assessed in the plasma. The micronuclei frequency and chromosomal aberrations were significantly higher in the exposed group in comparison to the nonexposed group (P < 0.01-0.0001). Similarly, GSH, TAC, and SOD in the blood plasma were significantly higher in the exposed group than the nonexposed group (P < 0.01-0.0001). However, the level of malondialdehyde, which is an indicator of lipid peroxidation, did not differ significantly between both the groups. Importantly, radiation absorbed dose exhibited a positive correlation with the incidence of micronuclei in blood lymphocytes but not with chromosomal aberrations. This study shows that the susceptibility of peripheral blood lymphocytes to chromosomal damage is associated with plasma antioxidant levels. Furthermore, increased levels of blood plasma GSH, TAC, and SOD in occupationally exposed individuals could be an adaptive measure in response to oxidative stress to protect somatic cell genetic integrity.
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Affiliation(s)
- Dayanidhi Kumar
- Department of Clinical Embryology, Obstetrics and Gynecology, Kasturba Medical College, Manipal University, Manipal, India
| | - Sandhya Kumari
- Department of Clinical Embryology, Obstetrics and Gynecology, Kasturba Medical College, Manipal University, Manipal, India
| | - Sujith Raj Salian
- Department of Clinical Embryology, Obstetrics and Gynecology, Kasturba Medical College, Manipal University, Manipal, India
| | - Shubhashree Uppangala
- Department of Clinical Embryology, Obstetrics and Gynecology, Kasturba Medical College, Manipal University, Manipal, India
| | - Guruprasad Kalthur
- Department of Clinical Embryology, Obstetrics and Gynecology, Kasturba Medical College, Manipal University, Manipal, India
| | - Srinivas Challapalli
- Department of Radiotherapy, Kasturba Medical College, Manipal University, Manipal, India
| | | | - Pratap Kumar
- Department of Obstetrics & Gynecology, Kasturba Medical College, Manipal University, Manipal, India
| | - Satish Kumar Adiga
- Department of Clinical Embryology, Obstetrics and Gynecology, Kasturba Medical College, Manipal University, Manipal, India
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9
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Zhang K, Luo L, Chen X, Hu M, Hu Q, Gong L, Weng Q. Molecular Effects of Irradiation (Cobalt-60) on the Control of Panonychus citri (Acari: Tetranychidae). Int J Mol Sci 2015; 16:26964-77. [PMID: 26569230 PMCID: PMC4661862 DOI: 10.3390/ijms161126004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 10/21/2015] [Accepted: 11/02/2015] [Indexed: 11/16/2022] Open
Abstract
The effective dose of irradiation to control pest mites in quarantine has been studied extensively, but the molecular mechanisms underlying the effects of the irradiation on mites are largely unknown. In this study, exposure to 400 Gy of γ rays had significant (p < 0.05) effects on the adult survival, fecundity and egg viability of Panonychus citri. The irradiation caused the degradation of the DNA of P. citri adults and damaged the plasma membrane system of the egg, which led to condensed nucleoli and gathered yolk. Additionally, the transcriptomes and gene expression profiles between irradiated and non-irradiated mites were compared, and three digital gene expression libraries were assembled and analyzed. The differentially expressed genes were putatively involved in apoptosis, cell death and the cell cycle. Finally, the expression profiles of some related genes were studied using quantitative real-time PCR. Our study provides valuable information on the changes in the transcriptome of irradiated P. citri, which will facilitate a better understanding of the molecular mechanisms that cause the sterility induced by irradiation.
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Affiliation(s)
- Ke Zhang
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education of China, South China Agricultural University, Guangzhou 510642, China.
| | - Lingyan Luo
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education of China, South China Agricultural University, Guangzhou 510642, China.
| | - Xieting Chen
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education of China, South China Agricultural University, Guangzhou 510642, China.
| | - Meiying Hu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education of China, South China Agricultural University, Guangzhou 510642, China.
| | - Qiongbo Hu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education of China, South China Agricultural University, Guangzhou 510642, China.
| | - Liang Gong
- Key Laboratory of Plant Resource Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China.
| | - Qunfang Weng
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education of China, South China Agricultural University, Guangzhou 510642, China.
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