1
|
Liu J, Fan X, Ni J, Cai M, Cai D, Jiang Y, Mo A, Miran W, Peng T, Long X, Yang F. Mitigation of uranium toxicity in rice by Sphingopyxis sp. YF1: Evidence from growth, ultrastructure, subcellular distribution, and physiological characteristics. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 214:108958. [PMID: 39053315 DOI: 10.1016/j.plaphy.2024.108958] [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: 05/14/2024] [Revised: 07/12/2024] [Accepted: 07/21/2024] [Indexed: 07/27/2024]
Abstract
Uranium (U) contamination of rice is an urgent ecological and agricultural problem whose effective alleviation is in great demand. Sphingopyxis genus has been shown to remediate heavy metal-contaminated soils. Rare research delves into the mitigation of uranium (U) toxicity to rice by Sphingopyxis genus. In this study, we exposed rice seedlings for 7 days at U concentrations of 0, 10, 20, 40, and 80 mg L-1 with or without the Sphingopyxis sp. YF1 in the rice nutrient solution. Here, we firstly found YF1 colonized on the root of rice seedlings, significantly mitigated the growth inhibition, and counteracted the chlorophyll content reduction in leaves induced by U. When treated with 1.1 × 107 CFU mL-1 YF1 with the amendment of 10 mg L-1 U, the decrease of U accumulation in rice seedling roots and shoots was the largest among all treatments; reduced by 39.3% and 32.1%, respectively. This was associated with the redistribution of the U proportions in different organelle parts, leading to the alleviation of the U damage to the morphology and structure of rice root. Interestingly, we found YF1 significantly weakens the expression of antioxidant enzymes genes (CuZnSOD,CATA,POD), promotes the up-regulation of metal-transporters genes (OsHMA3 and OsHMA2), and reduces the lipid peroxidation damage induced by U in rice seedlings. In summary, YF1 is a plant-probiotic with potential applications for U-contaminated rice, benefiting producers and consumers.
Collapse
Affiliation(s)
- Jun Liu
- Department of Cell Biology and Genetics, Institute of Cytology and Genetics, Key Laboratory of Hengyang City on Biological Toxicology and Ecological Restoration, Key Laboratory of Hengyang City on Ecological Impedance Technology of Heavy Metal Pollution in Cultivated Soil of Nonferrous Metal Mining Area, Key Laboratory of Ecological Environment and Critical Human Diseases Prevention of Hunan Province Department of Education, School of Basic Medical Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China; The Key Laboratory of Typical Environmental Pollution and Health Hazards of Hunan Province, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
| | - Xinting Fan
- Department of Cell Biology and Genetics, Institute of Cytology and Genetics, Key Laboratory of Hengyang City on Biological Toxicology and Ecological Restoration, Key Laboratory of Hengyang City on Ecological Impedance Technology of Heavy Metal Pollution in Cultivated Soil of Nonferrous Metal Mining Area, Key Laboratory of Ecological Environment and Critical Human Diseases Prevention of Hunan Province Department of Education, School of Basic Medical Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Juan Ni
- Department of Cell Biology and Genetics, Institute of Cytology and Genetics, Key Laboratory of Hengyang City on Biological Toxicology and Ecological Restoration, Key Laboratory of Hengyang City on Ecological Impedance Technology of Heavy Metal Pollution in Cultivated Soil of Nonferrous Metal Mining Area, Key Laboratory of Ecological Environment and Critical Human Diseases Prevention of Hunan Province Department of Education, School of Basic Medical Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Meihan Cai
- Department of Cell Biology and Genetics, Institute of Cytology and Genetics, Key Laboratory of Hengyang City on Biological Toxicology and Ecological Restoration, Key Laboratory of Hengyang City on Ecological Impedance Technology of Heavy Metal Pollution in Cultivated Soil of Nonferrous Metal Mining Area, Key Laboratory of Ecological Environment and Critical Human Diseases Prevention of Hunan Province Department of Education, School of Basic Medical Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Danping Cai
- The Key Laboratory of Typical Environmental Pollution and Health Hazards of Hunan Province, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Yuanyuan Jiang
- The Key Laboratory of Typical Environmental Pollution and Health Hazards of Hunan Province, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Aili Mo
- Department of Cell Biology and Genetics, Institute of Cytology and Genetics, Key Laboratory of Hengyang City on Biological Toxicology and Ecological Restoration, Key Laboratory of Hengyang City on Ecological Impedance Technology of Heavy Metal Pollution in Cultivated Soil of Nonferrous Metal Mining Area, Key Laboratory of Ecological Environment and Critical Human Diseases Prevention of Hunan Province Department of Education, School of Basic Medical Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Waheed Miran
- School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad, 44000, Pakistan
| | - Tangjian Peng
- Department of Cell Biology and Genetics, Institute of Cytology and Genetics, Key Laboratory of Hengyang City on Biological Toxicology and Ecological Restoration, Key Laboratory of Hengyang City on Ecological Impedance Technology of Heavy Metal Pollution in Cultivated Soil of Nonferrous Metal Mining Area, Key Laboratory of Ecological Environment and Critical Human Diseases Prevention of Hunan Province Department of Education, School of Basic Medical Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China; The Key Laboratory of Typical Environmental Pollution and Health Hazards of Hunan Province, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Xizi Long
- Department of Cell Biology and Genetics, Institute of Cytology and Genetics, Key Laboratory of Hengyang City on Biological Toxicology and Ecological Restoration, Key Laboratory of Hengyang City on Ecological Impedance Technology of Heavy Metal Pollution in Cultivated Soil of Nonferrous Metal Mining Area, Key Laboratory of Ecological Environment and Critical Human Diseases Prevention of Hunan Province Department of Education, School of Basic Medical Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China; The Key Laboratory of Typical Environmental Pollution and Health Hazards of Hunan Province, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
| | - Fei Yang
- Department of Cell Biology and Genetics, Institute of Cytology and Genetics, Key Laboratory of Hengyang City on Biological Toxicology and Ecological Restoration, Key Laboratory of Hengyang City on Ecological Impedance Technology of Heavy Metal Pollution in Cultivated Soil of Nonferrous Metal Mining Area, Key Laboratory of Ecological Environment and Critical Human Diseases Prevention of Hunan Province Department of Education, School of Basic Medical Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China; The Key Laboratory of Typical Environmental Pollution and Health Hazards of Hunan Province, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
| |
Collapse
|
4
|
Pannu TS, Sukhmani, Gill KS. Uranium-Toxicity and Uranium-Induced Osteosarcoma Using A New Regimen and Surgery : A First-Time Experience. J Clin Diagn Res 2015; 9:RD01-3. [PMID: 26266171 PMCID: PMC4525560 DOI: 10.7860/jcdr/2015/12055.6007] [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: 11/10/2014] [Accepted: 03/16/2015] [Indexed: 11/24/2022]
Abstract
Uranium isotopes have always been problematic to mankind since many centuries. Different studies all over the world have been unable to reveal causal relationship between uranium and its toxic effects on kidneys, bone and lungs. In this case report, we present a rare association of uranium toxicity with renal dysfunction and possibility of induction of osteosarcoma by an unknown mechanism. The presentation of the 12-year-old patient was reduction in urine output along with joint pains, seemed like that of diabetes mellitus, as he was already on insulin. The patient later diagnosed to have uranium toxicity. This case is an instance of strong association between medicine and public health. With complete history, physical examination and required investigations, all common causes like NSAID toxicity, aminoglycoside toxicity and exacerbation of diabetes were ruled out. Uranium investigations were done lastly based on the toxicology report of drinking water (South African toxicologist, Caron Smith). In the management strategy, the new regimen CBMIDA, supported by studies in Europe, was used. However, to our surprise, joint symptoms tracked their way to a diagnosis of osteosarcoma, which was later operated upon by our orthopaedic surgery team. Histopathologically, it was found to be a chondroblastic type of osteosarcoma.
Collapse
Affiliation(s)
| | - Sukhmani
- Intern,Government Medical College, Amritsar, India
| | | |
Collapse
|
6
|
Zhivin S, Laurier D, Caër-Lorho S, Acker A, Guseva Canu I. Impact of chemical exposure on cancer mortality in a French cohort of uranium processing workers. Am J Ind Med 2013; 56:1262-71. [PMID: 24009194 DOI: 10.1002/ajim.22231] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/02/2013] [Indexed: 01/31/2023]
Abstract
BACKGROUND Nuclear workers may be exposed to a variety of chemical hazards, in addition to radiation. We examined the effect of chemical exposures on cancer mortality among French uranium processing workers at the AREVA NC Pierrelatte facility. METHODS A cohort of 2,897 uranium processing workers employed for at least 6 months was followed from 1968 through 2006. Exposure to uranium and potentially carcinogenic chemicals was assessed with a plant-specific job-exposure matrix. Mortality hazard ratios (HRs) for cancers of the lung, lymphohematopoietic system, kidney and bladder, brain and central nervous system (BCNS), and prostate were estimated for each specific chemical exposure, with Cox regression models stratified for sex and calendar period and adjusted for socioeconomic status. Additional adjustments enabled us to examine the effect of co-exposure to uranium and other chemicals. RESULTS Exposure to aromatic solvents was associated with increased risk of BCNS malignancies after adjustment for other chemicals (HR=6.53, 95% CI=1.14-37.41; n=6) and for other chemicals and uranium (HR=7.26, 95% CI=0.90-58.19) in the annual exposure status model. Selected groups of lymphohematopoietic cancers were found associated with solvent exposure. Inconclusive results were found regarding chromium (VI) exposure, since only 2 workers died from lung cancer among 109 exposed. CONCLUSION Based on our pilot study, it seemed important to take into account chemical exposures in the analyses of cancer mortality among French uranium processing workers.
Collapse
Affiliation(s)
- Sergey Zhivin
- Laboratoire d'Epidémioloeie; Institut de Radioprotection et de Sûreté Nucléaire (IRSN); Fontenay-aux-Roses; France
| | - Dominique Laurier
- Laboratoire d'Epidémioloeie; Institut de Radioprotection et de Sûreté Nucléaire (IRSN); Fontenay-aux-Roses; France
| | - Sylvaine Caër-Lorho
- Laboratoire d'Epidémioloeie; Institut de Radioprotection et de Sûreté Nucléaire (IRSN); Fontenay-aux-Roses; France
| | - Alain Acker
- AREVA Group; Medical Coordination Section; Paris; France
| | - Irina Guseva Canu
- Laboratoire d'Epidémioloeie; Institut de Radioprotection et de Sûreté Nucléaire (IRSN); Fontenay-aux-Roses; France
| |
Collapse
|
8
|
Chen J, Moir D, Lane R, Thompson P. An ecological study of cancer incidence in Port Hope, Ontario from 1992 to 2007. JOURNAL OF RADIOLOGICAL PROTECTION : OFFICIAL JOURNAL OF THE SOCIETY FOR RADIOLOGICAL PROTECTION 2013; 33:227-242. [PMID: 23324463 DOI: 10.1088/0952-4746/33/1/227] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A plant processing radium and uranium ores has been operating in the town of Port Hope since 1932. Given the nuclear industry located in the community and ongoing public health concerns, cancer incidence rates in Port Hope were studied for a recent 16 year period (1992-2007) for continued periodic cancer incidence surveillance of the community. The cancer incidence in the local community for all cancers combined was similar to the Ontario population, health regions with similar socio-economic characteristics in Ontario and in Canada, and the Canadian population. No statistically significant differences in childhood cancer, leukaemia or other radiosensitive cancer incidence were observed, with the exception of statistically significant elevated lung cancer incidence among women. However, the statistical significance was reduced or disappeared when the comparison was made to populations with similar socio-economic characteristics. These findings are consistent with previous ecological, case-control and cohort studies conducted in Port Hope, environmental assessments, and epidemiological studies conducted elsewhere on populations living around similar facilities or exposed to similar environmental contaminants. Although the current study covered an extended period of time, the power to detect risk at the sub-regional level of analysis was limited since the Port Hope population is small (16,500). The study nevertheless indicated that large differences in cancer incidence are not occurring in Port Hope compared to other similar communities and the general population.
Collapse
Affiliation(s)
- Jing Chen
- Radiation Protection Bureau, Health Canada, 2720 Riverside Drive, Ottawa, K1A 0K9, Canada.
| | | | | | | |
Collapse
|
9
|
Tanner RJ, Eakins JS, Jansen JTM, Harrison JD. Doses and risks from uranium are not increased significantly by interactions with natural background photon radiation. RADIATION PROTECTION DOSIMETRY 2012; 151:323-343. [PMID: 22645386 DOI: 10.1093/rpd/ncs013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The impact of depleted uranium (DU) on human health has been the subject of much conjecture. Both the chemical and radiological aspects of its behaviour in the human body have previously been investigated in detail, with the radiological impact being assumed to be linked to the alpha decay of uranium. More recently, it has been proposed that the accumulation in tissue of high-Z materials, such as DU, may give rise to enhanced local energy deposition in the presence of natural background photon radiation due to the high photoelectric interaction cross sections of high-Z atoms. It is speculated that, in addition to producing short-range photoelectrons, these events will be followed by intense Auger and Coster-Kronig electron emission, thereby causing levels of cell damage that are unaccounted for in conventional models of radiological risk. In this study, the physical and biological bases of these claims are investigated. The potential magnitudes of any effect are evaluated and discussed, and compared with the risks from other radiological or chemical hazards. Monte Carlo calculations are performed to estimate likely energy depositions due to the presence of uranium in human tissues in photon fields: whole body doses, organ doses in anthropomorphic phantoms and nano-/micro-dosimetric scenarios are each considered. The proposal is shown generally to be based on sound physics, but overall the impact on human health is expected to be negligible.
Collapse
Affiliation(s)
- R J Tanner
- Health Protection Agency, Centre for Radiation, Chemical and Environmental Hazards, Chilton, Didcot, Oxon OX11 0RQ, UK.
| | | | | | | |
Collapse
|
10
|
Mobbs SF, Muirhead CR, Harrison JD. Risks from ionising radiation: an HPA viewpoint paper for Safegrounds. JOURNAL OF RADIOLOGICAL PROTECTION : OFFICIAL JOURNAL OF THE SOCIETY FOR RADIOLOGICAL PROTECTION 2011; 31:289-307. [PMID: 21865619 DOI: 10.1088/0952-4746/31/3/r01] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Safegrounds is a forum for developing and disseminating good practice guidance on the management of radioactively contaminated land on nuclear and defence sites in the UK. This review has been provided to Safegrounds as a summary of the basis for current radiation risk estimates and the International Commission on Radiological Protection (ICRP) protection system, in a form that will be accessible to a wide range of stakeholders. Safegrounds has also received viewpoint papers from other members who contend that the ICRP methodology results in substantial underestimates of risk, particularly for internal emitters. There is an extensive literature on the risks of radiation exposure, regularly reviewed by the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) and other expert groups. These data provide a sound basis for the system of protection recommended by ICRP. The available epidemiological and experimental evidence supports the application of cancer risk estimates derived for acute, high dose, external exposures to low dose exposures to external and internal sources. In the context of radioactively contaminated land on nuclear and defence sites, the national standards for the cleaning up of land and for waste disposal correspond to very low doses, two orders of magnitude less than average annual doses in the UK from natural background radiation (10-20 µSv compared with 2-3 mSv). Risks at such very low doses can only be estimated on the basis of observations after exposure of population groups at much higher doses. The estimated risks at these very low doses, while uncertain, are as likely to be overestimates as underestimates.
Collapse
Affiliation(s)
- S F Mobbs
- Health Protection Agency, Centre for Radiation, Chemical and Environmental Hazards, Chilton, Didcot, Oxon, UK.
| | | | | |
Collapse
|