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Swain SS, Sahoo SK. Piperlongumine and its derivatives against cancer: A recent update and future prospective. Arch Pharm (Weinheim) 2024:e2300768. [PMID: 38593312 DOI: 10.1002/ardp.202300768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 03/13/2024] [Accepted: 03/15/2024] [Indexed: 04/11/2024]
Abstract
Piperlongumine, or piplartine (PL), is a bioactive alkaloid isolated from Piper longum L. and a potent phytoconstituent in Indian Ayurveda and traditional Chinese medicine with a lot of therapeutic benefits. Apart from all of its biological activities, it demonstrates multimodal anticancer activity by targeting various cancer-associated pathways and being less toxic to normal cells. According to their structure-activity relationship (SAR), the trimethylphenyl ring (cinnamoyl core) and 5,6-dihydropyridin-2-(1H)-one (piperdine core) are responsible for the potent anticancer activity. However, it has poor intrinsic properties (low aqueous solubility, poor bioavailability, etc.). As a result, pharmaceutical researchers have been trying to optimise or modify the structure of PL to improve the drug-likeness profiles. The present review selected 26 eligible research articles on PL derivatives published between 2012 and 2023, followed by the preferred reporting items for systematic reviews and meta-analyses (PRISMA) format. We have thoroughly summarised the anticancer potency, mode of action, SAR and drug chemistry of the proposed PL-derivatives against different cancer cells. Overall, SAR analyses with respect to anticancer potency and drug-ability revealed that substitution of methoxy to hydroxyl, attachment of ligustrazine and 4-hydroxycoumarin heterocyclic rings in place of phenyl rings, and attachment of heterocyclic rings like indole at the C7-C8 olefin position in native PL can help to improve anticancer activity, aqueous solubility, cell permeability, and bioavailability, making them potential leads. Hopefully, the large-scale collection and critical drug-chemistry analyses will be helpful to pharmaceutical and academic researchers in developing potential, less-toxic and cost-effective PL-derivatives that can be used against different cancers.
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Affiliation(s)
- Shasank S Swain
- Biotechnology Research and Innovation Council-Institute of Life Sciences (BRIC-ILS), Nalco Square, Odisha, India
| | - Sanjeeb K Sahoo
- Biotechnology Research and Innovation Council-Institute of Life Sciences (BRIC-ILS), Nalco Square, Odisha, India
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2
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Sakr S, Inoue K, Mohamed A, Ahmed AA, ElFeky MG, Saleh GM, Kamar MS, Arae H, Aono T, Sahoo SK. Distribution of natural radionuclides in NORM samples from North Abu Rusheid area, Egypt. J Environ Radioact 2023; 266-267:107240. [PMID: 37418811 DOI: 10.1016/j.jenvrad.2023.107240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 06/08/2023] [Accepted: 06/30/2023] [Indexed: 07/09/2023]
Abstract
The North Abu Rusheid area in Egypt is a well-known high background natural radiation area (HBNRA) due to the existence of naturally occurring radioactive materials (NORMs) in mylonitic rocks. In this study, 27 rock samples were selected for dose estimation studies. 238U and 232Th were measured using inductively coupled plasma mass spectrometry (ICP-MS) and 40K was measured using sodium iodide (thallium) gamma-ray spectroscopy. The ranges of activity concentrations (Bq/kg) of 238U, 232Th and 40K in the samples varied from 270 ± 2 to 2120 ± 29, 350 ± 2 to 1840 ± 27 and 20 ± 2 to 1390 ± 35 with mean values of 980 ± 349, 770 ± 351, and 640 ± 402 Bq/kg, respectively. The radiological hazard parameters were estimated from activity concentrations of 238U, 232Th and 40K and compared to United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) values. The present study revealed that the hazard parameters were several times higher than the worldwide averages. The U/Th concentration ratio ranged from 0.7 to 3 and could be attributed to the presence of kasolite, uranothorite, zircon, and columbite in mylonitic rocks. From the radiological protection viewpoint, it is necessary to monitor natural radionuclides in these rocks prior to their use in residential and commercial construction materials.
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Affiliation(s)
- S Sakr
- Tokyo Metropolitan University, 7-2-10 Higashiogu, Arakawa-ku, Tokyo, 116-8551, Japan; Department of Physics, Minia University, El-Minia, Egypt; National Institutes for Quantum Sciences and Technology (QST), 4-9-1 Anagawa, Inage-ku, Chiba, 263-8555, Japan
| | - K Inoue
- Tokyo Metropolitan University, 7-2-10 Higashiogu, Arakawa-ku, Tokyo, 116-8551, Japan
| | - A Mohamed
- Department of Physics, Minia University, El-Minia, Egypt
| | - A A Ahmed
- Department of Physics, Minia University, El-Minia, Egypt
| | - M G ElFeky
- Nuclear Materials Authority, P.O. Box 530, El Maadi, Cairo, Egypt
| | - G M Saleh
- Nuclear Materials Authority, P.O. Box 530, El Maadi, Cairo, Egypt
| | - M S Kamar
- Nuclear Materials Authority, P.O. Box 530, El Maadi, Cairo, Egypt
| | - H Arae
- National Institutes for Quantum Sciences and Technology (QST), 4-9-1 Anagawa, Inage-ku, Chiba, 263-8555, Japan
| | - T Aono
- National Institutes for Quantum Sciences and Technology (QST), 4-9-1 Anagawa, Inage-ku, Chiba, 263-8555, Japan
| | - S K Sahoo
- National Institutes for Quantum Sciences and Technology (QST), 4-9-1 Anagawa, Inage-ku, Chiba, 263-8555, Japan.
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3
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Mishra MK, Jha SK, Patra AC, Mishra DG, Sahoo SK, Sahu SK, Verma GP, Saindane SS, Mitra P, Garg S, Pulhani V, Saradhi IV, Choudhury P, Kumar AV, Sapra BK, Kulkarni MS, Aswal DK. Generation of map on natural environmental background absorbed dose rate in India. J Environ Radioact 2023; 262:107146. [PMID: 36898251 DOI: 10.1016/j.jenvrad.2023.107146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/20/2023] [Accepted: 03/01/2023] [Indexed: 06/18/2023]
Abstract
A systematic mapping of natural absorbed dose rate was carried out to assess the existing exposure situation in India. The mammoth nationwide survey covered the entire terrestrial region of the country comprising of 45127 sampling grids (grid size 36 km2) with more than 100,000 data points. The data was processed using Geographic Information System. This study is based on established national and international approaches to provide linkage with conventional geochemical mapping of soil. Majority (93%) of the absorbed dose rate data was collected using handheld radiation survey meters and remaining were measured using environmental Thermo Luminescent Dosimeters. The mean absorbed dose rate of the entire country including several mineralized regions, was found to be 96 ± 21 nGy/h. The median, Geometric Mean and Geometric Standard Deviation values of absorbed dose rate were 94, 94 and 1.2 nGy/h, respectively. Among the High Background Radiation Areas of the country, absorbed dose rate varied from 700 to 9562 nGy/h in Karunagappally area of Kollam district, Kerala. The absorbed dose rate in the present nationwide study is comparable with the global database.
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Affiliation(s)
- Manish K Mishra
- Health, Safety and Environment Group, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - S K Jha
- Health, Safety and Environment Group, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India.
| | - Aditi C Patra
- Health, Safety and Environment Group, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - D G Mishra
- Health, Safety and Environment Group, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - S K Sahoo
- Health, Safety and Environment Group, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - S K Sahu
- Health, Safety and Environment Group, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Gopal P Verma
- Health, Safety and Environment Group, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Shashank S Saindane
- Health, Safety and Environment Group, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Pratip Mitra
- Health, Safety and Environment Group, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - S Garg
- Health, Safety and Environment Group, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Vandana Pulhani
- Health, Safety and Environment Group, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - I V Saradhi
- Health, Safety and Environment Group, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Probal Choudhury
- Health, Safety and Environment Group, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - A Vinod Kumar
- Health, Safety and Environment Group, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - B K Sapra
- Health, Safety and Environment Group, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - M S Kulkarni
- Health, Safety and Environment Group, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - D K Aswal
- Health, Safety and Environment Group, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
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4
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Mahapatra M, Mekap SK, Mal S, Sahoo J, Sahoo SK, Paidesetty SK. Coumaryl-sulfonamide moiety: Unraveling their synthetic strategy and specificity toward hCA IX/XII, facilitating anticancer drug development. Arch Pharm (Weinheim) 2023; 356:e2200508. [PMID: 36587981 DOI: 10.1002/ardp.202200508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 12/07/2022] [Accepted: 12/09/2022] [Indexed: 01/03/2023]
Abstract
Currently, cancer is the most grieving threat to society. The cancer-related death rate has had an ascending trend, despite the implementation of numerous treatment strategies or the discovery of an array of potent molecules against several pathways of cancer growth. The need of the hour is to prevent the multidrug resistance toll, and the current efforts have been bestowed upon a versatile small molecule scaffold, coumarin (benz[α]pyrone), a natural compound possessing interesting affinity toward the cancer target human carbonic anhydrase (hCA), focusing on hCA I, II, IX, and XII. Along with coumarin, the age-old known antibacterial drug sulfonamide, when conjugated at positions 3, 7, and 8 of coumarin either with a linker group or as a single entity, has been reported to enhance the affinity of coumarin toward the overexpressed enzymes in tumor cell lines. The sulfonamides have been listed as obsolete drugs due to the severe side effects caused by them; however, their affinity toward the hCA-zinc-binding core has attracted the attention of researchers. Hence, in the process of drug development, coumarin and sulfonamides have remained the choice of last resort. To unveil the synthetic strategy of coumarin-sulfonamide conjugation, their rationale for inhibiting cancer cells/enzymes, and their affinity toward various types of carcinoma have been the sole goal of the researchers. This review specifically focuses on the mechanism of action and the structure-activity relationship through synthetic strategies and the binding affinity of coumaryl-sulfonamide conjugates with the anticancer targets possessing the highest enzyme affinity, since 2008.
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Affiliation(s)
- Monalisa Mahapatra
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to be University, Bhubaneswar, Odisha, India
| | - Suman K Mekap
- School of Pharmacy and Life Sciences, Centurion University of Technology and Management, R. Sitapur, Odisha, India
| | - Suvadeep Mal
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to be University, Bhubaneswar, Odisha, India
| | - Jyotirmaya Sahoo
- School of Pharmacy, Arka Jain University, Jameshedpur, Jharkand, India
| | | | - Sudhir K Paidesetty
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to be University, Bhubaneswar, Odisha, India
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5
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Dilnawaz F, Sa P, Sahoo SK. Responsive role of nanomedicine in the tumor microenvironment and cancer drug resistance. Curr Med Chem 2022; 30:3335-3355. [DOI: 10.2174/0929867329666220922111336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 06/02/2022] [Accepted: 06/08/2022] [Indexed: 11/22/2022]
Abstract
Abstract:
Cancer remains a major worldwide health challenge. Current studies emphasize the tumor microenvironment that plays a vital role in tumor proliferation, invasion, metastasis, and drug resistance. The tumor microenvironment supports the cancer cell to evade conventional treatment such as surgery, radiotherapy, and chemotherapy. Moreover, the components of tumor microenvironments have a major contribution to developing therapy resistance in solid tumors. Therefore, targeting the tumor microenvironment can be a novel approach to achieving advancement in cancer nanomedicine. The recent progress in understanding TME and developing TME-responsive nanoparticles offers a great advantage in treating cancer drug resistance. These nanoparticles developed in response to TME stimuli such as low pH, redox, and hypoxia improve nanomedicine's pharmacokinetic and therapeutic efficacy. This review discusses the various components of the tumor microenvironment responsible for drug resistance and nanomedicine's role in overcoming it.
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Affiliation(s)
- Fahima Dilnawaz
- Laboratory of Nanomedicine, Institute of Life Sciences, Nalco Square, Chandrasekharpur, Bhubaneswar-751023, Odisha, India
- Department of Biotechnology, School of Science and Engineering, Centurion University of Technology and Management, Jatni, Bhubaneswar-752020, Odisha,
| | - Pratikshya Sa
- Laboratory of Nanomedicine, Institute of Life Sciences, Nalco Square, Chandrasekharpur, Bhubaneswar-751023, Odisha, India
- Regional Center for Biotechnology, Faridabad, Haryana-121001, India
| | - Sanjeeb K Sahoo
- Laboratory of Nanomedicine, Institute of Life Sciences, Nalco Square, Chandrasekharpur, Bhubaneswar-751023, Odisha, India
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6
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Mishra MK, Ravi PM, Chinnaesakki S, Anilkumar S, Sahoo SK. Protocol for sampling and analysis of food and agricultural produces consequent to a nuclear accident in India. J Environ Radioact 2021; 234:106621. [PMID: 33991742 DOI: 10.1016/j.jenvrad.2021.106621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 04/03/2021] [Accepted: 04/09/2021] [Indexed: 06/12/2023]
Abstract
Nuclear accidents, despite having an extremely low probability of occurrence, could cause uncontrolled release of radioactive elements (fission and activation products) into the environment, and may ultimately lead to contamination of food products. Such a scenario requires extraordinary measures for control of food, which might be contaminated to a level not suitable for human consumption. Agricultural products (which include grain crops, vegetable, fruits, dairy, meat, eggs and poultry) pass through a series of local, district and state level markets to finally reach consumers. An effective intervention at different stages of distribution by targeted sampling and analysis of suspected (contaminated) foodstuffs will substantially reduce the chances of contaminated food to reach the public. At the same time, it will also ensure food security of the people without imposing unreasonable restrictions in market flow. This can also help in getting the farmers adequately compensated. This paper presents a protocol for sampling and analysis suitable for India, considering the diversity with respect to climate, soil type, land use, crop pattern, population density, etc. The paper also provides an estimate of infrastructure requirement to carry out environmental monitoring following the emergency with respect to human resources and instruments. The paper proposes to use the national web portal for collection of data pertaining to crop pattern, land use and market flow. A web-based decision support system (Web-DSS) on a GIS platform, for sampling, analysis and display of data online would enhance the transparency of decision being taken and enable the administrators to effectively monitor the work flow, details of sample collection, analysis and effective use of human and other resources.
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Affiliation(s)
- Manish K Mishra
- Environmental Monitoring and Assessment Division, Bhabha Atomic Research Centre, Mumbai, 400085, India.
| | - P M Ravi
- Health Physics Division, Bhabha Atomic Research Centre, Mumbai, 400085, India; Homi Bhabha National Institute, Mumbai, 400094, India
| | - S Chinnaesakki
- Health Physics Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - S Anilkumar
- Radiation Safety Systems Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - S K Sahoo
- Health Physics Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
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7
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Kasar S, Mishra S, Sahoo SK, Kavasi N, Omori Y, Arae H, Sorimachi A, Aono T. Sorption-desorption coefficients of uranium in contaminated soils collected around Fukushima Daiichi Nuclear Power Station. J Environ Radioact 2021; 233:106617. [PMID: 33866199 DOI: 10.1016/j.jenvrad.2021.106617] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 03/08/2021] [Accepted: 04/06/2021] [Indexed: 06/12/2023]
Abstract
Various radionuclides including fission products and heavy nuclides were released into the environment during the Fukushima Daiichi Nuclear Power Station (FDNPS) accident. The dissolution followed by migration of deposited radionuclides of Cs, Sr and U on soils could take place to the local environment. Therefore, it is necessary to determine sorption-desorption coefficients of U in soil-water system around the FDNPS from a migration viewpoint. The determination of sorption coefficient Kd(S) as well as desorption coefficient Kd(D) for U has been carried out in the present study using a laboratory batch method. Stable U was used for sorption from simulated ground water onto contaminated soil samples collected from Okuma Town, Fukushima. Different soil parameters were measured to understand their effects on sorption and desorption processes. The obtained Kd(S) and Kd(D) values of U were compared with values of Kd(S) and Kd(D) of Cs and Sr and Kd(S)-U in known Fukushima accident contaminated soils reported in the literature for better understanding. It was observed that Kd(S)-U varied from 160 to 5100 L/kg, whereas Kd(D)-U ranged from 200 to 11000 L/kg. Kd(D) was higher than Kd(S) for U in these soils implying irreversibility of the sorption process. Pearson's correlation of Kd(S) values suggested that U sorption is affected by various soil parameters. However, desorption is decided by the nature of U species formed in sorption process and soil parameters like pH, presence of carbonates, Ca ions, clay minerals etc. to some extent. The comparison between Kd(S) and Kd(D) values for Cs, Sr and U revealed that unsorbed Sr could migrate farther than unsorbed Cs or U under the present experimental conditions. Both sorption and desorption studies are of great importance to understand migration of metal ions from contaminated sites to local uncontaminated areas.
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Affiliation(s)
- S Kasar
- Environmental Radionuclides Research Group, National Institutes for Quantum and Radiological Science and Technology (QST), 4-9-1Anagawa, Chiba, 263-8555, Japan
| | - S Mishra
- Environmental Radionuclides Research Group, National Institutes for Quantum and Radiological Science and Technology (QST), 4-9-1Anagawa, Chiba, 263-8555, Japan; Environmental Monitoring and Assessment Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - S K Sahoo
- Environmental Radionuclides Research Group, National Institutes for Quantum and Radiological Science and Technology (QST), 4-9-1Anagawa, Chiba, 263-8555, Japan.
| | - N Kavasi
- Environmental Radionuclides Research Group, National Institutes for Quantum and Radiological Science and Technology (QST), 4-9-1Anagawa, Chiba, 263-8555, Japan
| | - Y Omori
- Department of Radiation Physics and Chemistry, Fukushima Medical University, 1, Hikarigaoka, Fukushima 960-1295, Japan
| | - H Arae
- Environmental Radionuclides Research Group, National Institutes for Quantum and Radiological Science and Technology (QST), 4-9-1Anagawa, Chiba, 263-8555, Japan
| | - A Sorimachi
- Integrated Center for Science and Humanities, Fukushima Medical University, 1, Hikarigaoka, Fukushima 960-1295, Japan
| | - T Aono
- Environmental Radionuclides Research Group, National Institutes for Quantum and Radiological Science and Technology (QST), 4-9-1Anagawa, Chiba, 263-8555, Japan
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8
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Murugan R, Kavasi N, Sahoo SK, Omori Y, Sorimachi A, Takahashi H, Aono T. Measurement of uranium isotope ratios in Fukushima-accident contaminated soil samples using multi collector inductively coupled plasma mass spectrometry. J Environ Radioact 2021; 232:106568. [PMID: 33740532 DOI: 10.1016/j.jenvrad.2021.106568] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/19/2021] [Accepted: 02/21/2021] [Indexed: 06/12/2023]
Abstract
In the present study, 137Cs and 238U activity concentrations, 234U/238U activity ratio, and 235U/238U isotope ratio were measured in fifteen soil samples collected from the exclusion zone around the Fukushima Daiichi Nuclear Power Station (FDNPS). The 137Cs activity concentrations of Fukushima-accident contaminated soil samples ranged from 29.9 to 4780 kBq kg-1 with a mean of 2007 kBq kg-1. On the other hand, the 238U activity concentrations of these soil samples ranged from 5.2 to 22.4 Bq kg-1 with a mean of 13.2 Bq kg-1. The activity ratios of 234U/238U ranged from 0.973 to 1.023. The 235U/238U isotope ratios of these exclusion zone soil samples varied from 0.007246 to 0.007260, and they were similar to the natural terrestrial ratio confirming the natural origin. Using isotope dilution technique, the 235U/137Cs activity ratio was theoretically estimated for highly 137Cs contaminated soil samples from Fukushima exclusion zone ranged from 5.01 × 10-8 - 6.16 × 10-7 with a mean value of 2.51 × 10-7.
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Affiliation(s)
- R Murugan
- National Institutes for Quantum and Radiological Sciences and Technology (QST), 4-9-1 Anagawa, Inage-ku, Chiba, 263-8555, Japan
| | - N Kavasi
- National Institutes for Quantum and Radiological Sciences and Technology (QST), 4-9-1 Anagawa, Inage-ku, Chiba, 263-8555, Japan
| | - S K Sahoo
- National Institutes for Quantum and Radiological Sciences and Technology (QST), 4-9-1 Anagawa, Inage-ku, Chiba, 263-8555, Japan.
| | - Y Omori
- Fukushima Medical University, Hikarigaoka, Fukushima, 960-1295, Japan
| | - A Sorimachi
- Fukushima Medical University, Hikarigaoka, Fukushima, 960-1295, Japan
| | - H Takahashi
- National Institutes for Quantum and Radiological Sciences and Technology (QST), 4-9-1 Anagawa, Inage-ku, Chiba, 263-8555, Japan
| | - T Aono
- National Institutes for Quantum and Radiological Sciences and Technology (QST), 4-9-1 Anagawa, Inage-ku, Chiba, 263-8555, Japan
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Veerasamy N, Murugan R, Kasar S, Inoue K, Kavasi N, Balakrishnan S, Arae H, Fukushi M, Sahoo SK. Geochemical characterization of monazite sands based on rare earth elements, thorium and uranium from a natural high background radiation area in Tamil Nadu, India. J Environ Radioact 2021; 232:106565. [PMID: 33714078 DOI: 10.1016/j.jenvrad.2021.106565] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 02/17/2021] [Accepted: 02/17/2021] [Indexed: 06/12/2023]
Abstract
The Kanyakumari coastal area in the southernmost part of Tamil Nadu, India is a well-known natural high background radiation area due to the abundance of monazite in beach placer deposits. In the present study, the concentrations of major oxides, rare earth elements (REEs), Th and U were measured to understand geochemical characteristics of these monazite sands. Based on the ambient dose rate, 23 locations covering an area of about 60 km along the coast were selected for sample collection. The concentrations of U and Th ranged from 1.1 to 737.8 μg g-1 and 25.2-12250.6 μg g-1, respectively. The Th/U ratio ranged from 2.2 to 61.6, which clearly indicated that Th was the dominant contributing radionuclide to the enhanced natural radioactivity in this coastal region. The chondrite-normalized REEs pattern of the placer deposits showed enrichment in light REEs and depletion in heavy REEs with a negative Eu anomaly that indicated the monazite sands were derived from granite, charnockite, and granitoid rocks from the Nagercoil and the Trivandrum Blocks of the Southern Granulite Terrain.
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Affiliation(s)
- N Veerasamy
- Department of Radiological Sciences, Tokyo Metropolitan University, 7-2-10 Higashiogu, Arakawa-ku, Tokyo, 116-8551, Japan; Environmental Radionuclides Research Group, National Institutes for Quantum and Radiological Sciences and Technology, 4-9-1 Anagawa, Inage-ku, Chiba, 263-8555, Japan
| | - R Murugan
- Environmental Radionuclides Research Group, National Institutes for Quantum and Radiological Sciences and Technology, 4-9-1 Anagawa, Inage-ku, Chiba, 263-8555, Japan
| | - S Kasar
- Environmental Radionuclides Research Group, National Institutes for Quantum and Radiological Sciences and Technology, 4-9-1 Anagawa, Inage-ku, Chiba, 263-8555, Japan
| | - K Inoue
- Department of Radiological Sciences, Tokyo Metropolitan University, 7-2-10 Higashiogu, Arakawa-ku, Tokyo, 116-8551, Japan
| | - N Kavasi
- Environmental Radionuclides Research Group, National Institutes for Quantum and Radiological Sciences and Technology, 4-9-1 Anagawa, Inage-ku, Chiba, 263-8555, Japan
| | - S Balakrishnan
- Department of Earth Sciences, Pondicherry University, R Venkat Raman Nagar, Kalapet, Puducherry, 605014, India
| | - H Arae
- Environmental Radionuclides Research Group, National Institutes for Quantum and Radiological Sciences and Technology, 4-9-1 Anagawa, Inage-ku, Chiba, 263-8555, Japan
| | - M Fukushi
- Department of Radiological Sciences, Tokyo Metropolitan University, 7-2-10 Higashiogu, Arakawa-ku, Tokyo, 116-8551, Japan
| | - S K Sahoo
- Environmental Radionuclides Research Group, National Institutes for Quantum and Radiological Sciences and Technology, 4-9-1 Anagawa, Inage-ku, Chiba, 263-8555, Japan.
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10
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Kundu P, Singh D, Singh A, Sahoo SK. Cancer Nanotheranostics: A Nanomedicinal Approach for Cancer Therapy and Diagnosis. Anticancer Agents Med Chem 2021; 20:1288-1299. [PMID: 31429694 DOI: 10.2174/1871520619666190820145930] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 05/29/2019] [Accepted: 06/03/2019] [Indexed: 12/27/2022]
Abstract
The panorama of cancer treatment has taken a considerable leap over the last decade with the advancement in the upcoming novel therapies combined with modern diagnostics. Nanotheranostics is an emerging science that holds tremendous potential as a contrivance by integrating therapy and imaging in a single probe for cancer diagnosis and treatment thus offering the advantage like tumor-specific drug delivery and at the same time reduced side effects to normal tissues. The recent surge in nanomedicine research has also paved the way for multimodal theranostic nanoprobe towards personalized therapy through interaction with a specific biological system. This review presents an overview of the nano theranostics approach in cancer management and a series of different nanomaterials used in theranostics and the possible challenges with future directions.
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Affiliation(s)
- Paromita Kundu
- Laboratory of Nanomedicine, Institute of Life Sciences, Nalco Square, Chandrasekharpur, Bhubaneswar, Odisha, India
| | - Deepika Singh
- Laboratory of Nanomedicine, Institute of Life Sciences, Nalco Square, Chandrasekharpur, Bhubaneswar, Odisha, India
| | - Abhalaxmi Singh
- Laboratory of Nanomedicine, Institute of Life Sciences, Nalco Square, Chandrasekharpur, Bhubaneswar, Odisha, India
| | - Sanjeeb K Sahoo
- Laboratory of Nanomedicine, Institute of Life Sciences, Nalco Square, Chandrasekharpur, Bhubaneswar, Odisha, India
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Singh P, Singh D, Sa P, Mohapatra P, Khuntia A, K Sahoo S. Insights from nanotechnology in COVID-19: prevention, detection, therapy and immunomodulation. Nanomedicine (Lond) 2021; 16:1219-1235. [PMID: 33998837 PMCID: PMC8127834 DOI: 10.2217/nnm-2021-0004] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The outbreak of SARS-CoV-2 infection has presented the world with an urgent demand for advanced diagnostics and therapeutics to prevent, treat and control the spread of infection. Nanotechnology seems to be highly relevant in this emergency due to the unique physicochemical properties of nanomaterials which offer versatile chemical functionalization to create advanced biomedical tools. Here, nano-intervention is discussed for designing effective strategies in developing advanced personal protective equipment kits, disinfectants, rapid and cost-effective diagnostics and therapeutics against the infection. We have also highlighted the nanoparticle-based vaccination approaches and how nanoparticles can regulate the host immune system against infection. Overall, this review discusses various nanoformulations that have shown clinical relevance or can be explored in the fight against COVID-19.
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Affiliation(s)
- Priya Singh
- Institute of Life Sciences, Bhubaneswar, Odisha, 751023, India.,Regional Center for Biotechnology, Pali, Haryana, 121001, India
| | - Deepika Singh
- Institute of Life Sciences, Bhubaneswar, Odisha, 751023, India
| | - Pratikshya Sa
- Institute of Life Sciences, Bhubaneswar, Odisha, 751023, India.,Regional Center for Biotechnology, Pali, Haryana, 121001, India
| | - Priyanka Mohapatra
- Institute of Life Sciences, Bhubaneswar, Odisha, 751023, India.,Regional Center for Biotechnology, Pali, Haryana, 121001, India
| | - Auromira Khuntia
- Institute of Life Sciences, Bhubaneswar, Odisha, 751023, India.,Regional Center for Biotechnology, Pali, Haryana, 121001, India
| | - Sanjeeb K Sahoo
- Institute of Life Sciences, Bhubaneswar, Odisha, 751023, India
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12
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Kumar N, Madan R, Gupta K, Chatterjee D, Uppal DK, Goyal S, Ballari N, Khosla D, Sahoo SK, Ahuja CK. Embryonal tumors with multilayered rosettes: A tertiary care centre experience. Clin Neurol Neurosurg 2021; 202:106508. [PMID: 33556852 DOI: 10.1016/j.clineuro.2021.106508] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 01/15/2021] [Accepted: 01/16/2021] [Indexed: 11/15/2022]
Abstract
BACKGROUND Embryonal tumors with multilayered rosettes (ETMR) is an extremely rare and highly aggressive tumor. It includes three distinct entities i.e, embryonal tumor with abundant neuropil and true rosettes (ETANTR), ependymoblastoma (EBL) and medulloepithelioma (MEPL). Here, we present our institutional experience of seven ETMR cases treated over a period of five years. MATERIALS AND METHODS Patients' records from 2015 to 2019 were reviewed manually and electronically to retrieve the data. Clinicopathological and outcome details of ETMR cases were entered in a predesigned proforma. RESULTS A total of seven cases of ETMR were registered from 2015 to 2019 with a median age at presentation of four years (range 3-7 years). All patients underwent surgery. However, only three patients completed the planned adjuvant treatment, comprising of focal radiotherapy (RT) alone, craniospinal irradiation (CSI) alone and CSI followed by six cycles of chemotherapy in one patient each respectively. Two patients commenced CSI but deteriorated during RT and thereafter needed best supportive care. Two patients could not be started on any adjuvant treatment. Unfortunately, six patients succumbed to their disease within one year of their diagnosis. Only one patient who received both CSI and adjuvant chemotherapy is alive at 15 months of diagnosis. CONCLUSION ETMR is a rare and aggressive entity. Majority of the patients die within one year of the diagnosis despite multimodality treatment.
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MESH Headings
- Brain Neoplasms/diagnostic imaging
- Brain Neoplasms/mortality
- Brain Neoplasms/pathology
- Brain Neoplasms/therapy
- Chemoradiotherapy, Adjuvant
- Child
- Child, Preschool
- Female
- Humans
- Male
- Neoplasms, Germ Cell and Embryonal/diagnostic imaging
- Neoplasms, Germ Cell and Embryonal/mortality
- Neoplasms, Germ Cell and Embryonal/pathology
- Neoplasms, Germ Cell and Embryonal/therapy
- Neuroectodermal Tumors, Primitive/diagnostic imaging
- Neuroectodermal Tumors, Primitive/mortality
- Neuroectodermal Tumors, Primitive/pathology
- Neuroectodermal Tumors, Primitive/therapy
- Neurosurgical Procedures
- Radiotherapy, Adjuvant
- Tertiary Care Centers
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Affiliation(s)
- N Kumar
- Department of Radiotherapy and Oncology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - R Madan
- Department of Radiotherapy and Oncology, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
| | - K Gupta
- Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - D Chatterjee
- Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - D K Uppal
- Department of Radiotherapy and Oncology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - S Goyal
- Department of Radiotherapy and Oncology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - N Ballari
- Department of Radiotherapy and Oncology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - D Khosla
- Department of Radiotherapy and Oncology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - S K Sahoo
- Department of Neurosurgery, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - C K Ahuja
- Department of Radiodiagnosis, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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13
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Savitri PP, Murty TS, Sudhakar J, Krishna NS, Sahoo SK, Gupta A, Kumar AV. Ingestion dose due to 226Ra, 228Ra, and 40K in the plant origin food materials grown around BARC, Visakhapatnam. Radiat Prot Environ 2020. [DOI: 10.4103/rpe.rpe_37_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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14
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Žunic ZS, Benedik L, Kritsananuwat R, Veselinovic N, Tokonami S, Arae H, Stojanovska Z, Sahoo SK. MEASUREMENT OF URANIUM IN URINE, HAIR AND NAILS IN SUBJECTS OF NISKA BANJA TOWN, A HIGH NATURAL BACKGROUND RADIATION AREA OF SERBIA. Radiat Prot Dosimetry 2019; 184:319-323. [PMID: 31034562 DOI: 10.1093/rpd/ncz120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Urine, hair and nail samples were collected from a population of both sex aged from 40 to 87 years in Niška Banja (227 km south of Belgrade, Serbia) with a high level of natural radioactivity (HLNRA). To assess and monitor the public exposure, urine samples for each subject (24 h period) were collected and concentration of uranium (U) was analysed using alpha-particle spectrometry. Human hair and nails considered as bio-indicators of the public exposure to radionuclides over a long period of months or even years and concentration of U was determined using inductively coupled plasma-mass spectrometry. The mean concentrations of U in urine, hair and nail were 123 ng/L, 17 ng/g and 8 ng/g, respectively. There was a large variation and may be due to geological origin.
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Affiliation(s)
- Z S Žunic
- University of Belgrade Institute of Nuclear Sciences 'Vinca', Belgrade, Serbia
| | - L Benedik
- Department of Environmental Sciences, Jožef Stefan Institute, Ljubljana, Slovenia
| | - R Kritsananuwat
- National Institutes for Quantum and Radiological Science and Technology (QST), Chiba, Japan
- Chulalongkorn University, Bangkok, Thailand
| | - N Veselinovic
- University of Belgrade Institute of Nuclear Sciences 'Vinca', Belgrade, Serbia
| | - S Tokonami
- National Institutes for Quantum and Radiological Science and Technology (QST), Chiba, Japan
- Hirosaki University, Hirosaki, Japan
| | - H Arae
- National Institutes for Quantum and Radiological Science and Technology (QST), Chiba, Japan
| | | | - S K Sahoo
- National Institutes for Quantum and Radiological Science and Technology (QST), Chiba, Japan
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15
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Kasar S, Sahoo SK, Arae H, Mishra S, Tokonami S, Aono T. URANIUM, THORIUM AND RARE EARTH ELEMENTS DISTRIBUTION IN FUKUSHIMA SOIL SAMPLES. Radiat Prot Dosimetry 2019; 184:363-367. [PMID: 31330003 DOI: 10.1093/rpd/ncz075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 04/03/2019] [Indexed: 06/10/2023]
Abstract
Uranium, thorium and rare earth elements (REEs) in soil samples contaminated by Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident was determined using inductively coupled plasma-mass spectrometry (ICP-MS). This information provides knowledge about concentration levels of REEs in soil samples as a background data after FDNPP accident. Chondrite-normalised REEs pattern does not show enrichment in concentrations of REEs, which could be related to FDNPP accident. The high concentration of these elements at few sampling points may be due to soil formation process from granitic rocks.
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Affiliation(s)
- S Kasar
- National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - S K Sahoo
- National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - H Arae
- National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - S Mishra
- National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
- Bhabha Atomic Research Centre, Trombay, Mumbai, India
| | - S Tokonami
- Institute of Radiation Emergency Medicine, Hirosaki University, Aomori, Japan
| | - T Aono
- National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
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16
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Veerasamy N, Sahoo SK, Inoue K, Fukushi M, Tsuruoka H, Arae H, Balakrishnan S. NATURAL RADIOACTIVITY MEASUREMENT AND DOSE ASSESSMENT OF BEACH PLACER SANDS IN THE COASTAL REGION OF TAMIL NADU (INDIA). Radiat Prot Dosimetry 2019; 184:409-412. [PMID: 31038715 DOI: 10.1093/rpd/ncz109] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A preliminary study was carried out to determine the radioactivity concentration of 232Th, 226Ra and 40K in beach placer sands from 13 locations along the coast line of Tamil Nadu state, India. The ambient dose rates varied from 9 to 467 nGy h-1. The activity concentrations of radionuclide 232Th, 226Ra and 40K ranged from 5.2 to 683 Bq kg-1, 13 to 198 Bq kg-1 and 107 to 421 Bq kg-1, respectively. The annual effective dose rate ranges from 27 to 620 μSv y-1 and was higher at seven beaches in comparison to the UNSCEAR annual worldwide average value.
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Affiliation(s)
- N Veerasamy
- National Institutes for Quantum and Radiological Science and Technology (QST), Chiba, Japan
- Tokyo Metropolitan University, Tokyo, Japan
| | - S K Sahoo
- National Institutes for Quantum and Radiological Science and Technology (QST), Chiba, Japan
| | - K Inoue
- Tokyo Metropolitan University, Tokyo, Japan
| | - M Fukushi
- Tokyo Metropolitan University, Tokyo, Japan
| | - H Tsuruoka
- Tokyo Metropolitan University, Tokyo, Japan
- Tsukuba International University, Ibaraki, Japan
| | - H Arae
- National Institutes for Quantum and Radiological Science and Technology (QST), Chiba, Japan
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17
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Mishra S, Kasar S, Takamasa A, Veerasamy N, Sahoo SK. Measurement of uranium distribution coefficient and 235U/ 238U ratio in soils affected by Fukushima dai-ichi nuclear power plant accident. J Environ Radioact 2019; 198:36-42. [PMID: 30580113 DOI: 10.1016/j.jenvrad.2018.12.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 12/14/2018] [Accepted: 12/14/2018] [Indexed: 06/09/2023]
Abstract
Fukushima Daiichi Nuclear Power Plant (FDNPP) accident resulted radioactive contamination in soil due to deposition of mainly radiocesium as well as many long-lived radionuclides surrounding a large area around FDNPP. Depending upon environmental conditions, radionuclides in soil can be mobilized in aquatic systems. Therefore, the fate and transfer of these radionuclides in the soil water system is very important for radiation protection and dose assessment. In the present study, soil and water samples were collected from contaminated areas around FDNPP. Inductively coupled plasma mass spectrometry (ICP-MS) is used for total uranium concentration. Emphasis has been given on isotope ratio measurement of 235U/238U ratio using thermal ionization mass spectrometry (TIMS) that gives us the idea about its contamination during accident. For the migration behavior, its distribution coefficient (Kd) has been determined using laboratory batch method. Chemical characterization of soil with respect to different parameters has been carried out. The effect of these soil parameters on distribution coefficient of uranium has been studied in order to explain the radionuclide mobility in this particular area. The distribution coefficient values for uranium are found to vary from 30 to 36000 L/kg. A large variation in the distribution coefficient values shows the retention or mobility of uranium is highly dependent on soil characteristics in the particular area. This variation is explained with respect to soil pH, Fe, Mn, CaCO3 and organic content. There is a very good correlation of uranium Kd obtained with Fe content. There is no enrichment of 235U has been noticed in the studied area.
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Affiliation(s)
- S Mishra
- Fukushima Project Headquarters, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology (QST), 4-9-1Anagawa, Inage-ku, Chiba, 263-8555, Japan; Radiation Safety System Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - S Kasar
- Fukushima Project Headquarters, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology (QST), 4-9-1Anagawa, Inage-ku, Chiba, 263-8555, Japan
| | - A Takamasa
- Fukushima Project Headquarters, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology (QST), 4-9-1Anagawa, Inage-ku, Chiba, 263-8555, Japan
| | - N Veerasamy
- Fukushima Project Headquarters, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology (QST), 4-9-1Anagawa, Inage-ku, Chiba, 263-8555, Japan; Tokyo Metropolitan University, 7-2-10 Higashiogu, Arakawa-ku, Tokyo, 116-8551, Japan
| | - S K Sahoo
- Fukushima Project Headquarters, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology (QST), 4-9-1Anagawa, Inage-ku, Chiba, 263-8555, Japan.
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18
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Sharma T, Sharma A, Kaur I, Mahajan RK, Litoria PK, Sahoo SK, Bajwa BS. Uranium distribution in groundwater and assessment of age dependent radiation dose in Amritsar, Gurdaspur and Pathankot districts of Punjab, India. Chemosphere 2019; 219:607-616. [PMID: 30554048 DOI: 10.1016/j.chemosphere.2018.12.039] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 11/30/2018] [Accepted: 12/05/2018] [Indexed: 06/09/2023]
Abstract
A comprehensive study of seasonal variation of uranium distribution in groundwater of Amritsar, Gurdaspur and Pathankot districts of Punjab, India and assessment of associated radiological risks, chemical risks and effective radiation dose for different age groups, was conducted to determine its health impact on humans residing in these regions. Physicochemical parameters such as pH, EC, TDS, total hardness and contents of various anions such as carbonates/bicarbonates, chlorides, fluorides, nitrates, sulphates and phosphates in groundwater were also analysed to determine correlation between groundwater chemistry and uranium distribution. The average values of uranium concentration in ground water samples of Amritsar, Gurdaspur and Pathankot districts were found to be 8.6 μg L-1, 4.3 μg L-1 and 3.0 μg L-1, respectively, in pre-monsoon and 8.8 μg L-1, 4.9 μg L-1 and 3.4 μg L-1, respectively, in post-monsoon. The uranium concentration in majority of the ground water samples was found to be below the permissible limit of 30 μg L-1 recommended by World Health Organization (WHO, 2011). In all three districts, TDS, EC and bicarbonates were found to have positive correlation with observed uranium contents in both seasons. The annual effective dose due to ingestion of uranium through drinking water was found to be less than the prescribed limit of 100 μSv y-1 given by WHO (2004). Radiological and chemical toxicity risk assessment of uranium in groundwater was also carried out and found to be within the permissible values of 1.67 × 10-4 and 4.53 μg kg-1 day-1 respectively, recommended by Atomic Energy Regulatory Board (AERB, 2004).
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Affiliation(s)
- Tanu Sharma
- Department of Physics, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Arvesh Sharma
- Department of Physics, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Inderpreet Kaur
- Department of Chemistry, Centre for Advanced Studies, Guru Nanak Dev University, Amritsar, Punjab, 143005, India.
| | - R K Mahajan
- Department of Chemistry, Centre for Advanced Studies, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - P K Litoria
- Punjab Remote Sensing Centre, Ludhiana, Punjab, 141004, India
| | - S K Sahoo
- Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - B S Bajwa
- Department of Physics, Guru Nanak Dev University, Amritsar, Punjab, 143005, India.
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19
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Kierepko R, Sahoo SK, Hosoda M, Tokonami S, Sorimachi A, Kim E, Ohno M. 238Pu/ (239+240)Pu activity ratio as an indicator of Pu originating from the FDNPP accident in the terrestrial environment of Fukushima Prefecture. J Environ Radioact 2019; 196:133-140. [PMID: 30453130 DOI: 10.1016/j.jenvrad.2018.11.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 11/08/2018] [Accepted: 11/08/2018] [Indexed: 06/09/2023]
Abstract
The Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident has caused significant radionuclide contamination. Pu isotopes at the level of GBq were released from the damaged reactors to terrestrial and marine ecosystems. In this work, 35 samples were collected at different locations of Fukushima. Samples consisted of three types, soil, forest litter and alluvial dust (road dust, sludges from drainage systems and below gutter pipe outflows). The obtained activity ratios of 238Pu/(239+240)Pu ranged from 0.030 to 1.86. 14 of our samples contained trace amounts of Pu originating from the damaged reactors (2SM verification). Our study identified a few previously unknown "hot spots" of 238Pu/(239+240)Pu activity ratio localized in an area between 15 and 30 km in the northwest direction from the FDNPP. Additionally, results obtained in this study combined with previously published data allowed us to prepare a map of spatial distribution of the Pu isotope fingerprints (238Pu/(239+240)Pu) in Fukushima Prefecture.
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Affiliation(s)
- R Kierepko
- Fukushima Project Headquarters, National Institute for Quantum and Radiological Sciences and Technology, 4-9-1 Anagawa, Inage-ku, Chiba, 263-8555, Japan; Department of Nuclear Physical Chemistry, Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Radzikowskiego 152, Poland
| | - S K Sahoo
- Fukushima Project Headquarters, National Institute for Quantum and Radiological Sciences and Technology, 4-9-1 Anagawa, Inage-ku, Chiba, 263-8555, Japan.
| | - M Hosoda
- Department of Radiation Sciences, Hirosaki University Graduate School of Health Sciences, 66-1 Hon-cho, Hirosaki, Aomori, 036-8564, Japan
| | - S Tokonami
- Institute of Radiation Emergency Medicine, Hirosaki University, 66-1 Hon-cho, Hirosaki, Aomori, 036-8564, Japan
| | - A Sorimachi
- Institute of Radiation Emergency Medicine, Hirosaki University, 66-1 Hon-cho, Hirosaki, Aomori, 036-8564, Japan; Department of Radiation Physics and Chemistry, School of Medicine, Fukushima Medical University, Hikarigaoka 1, Fukushima, 960-1295, Japan
| | - E Kim
- Department of Radiation Measurement and Dose Assessment, National Institute for Quantum and Radiological Sciences and Technology, 4-9-1 Anagawa, Inage-ku, Chiba, 263-8555, Japan
| | - M Ohno
- Department of Radiation Measurement and Dose Assessment, National Institute for Quantum and Radiological Sciences and Technology, 4-9-1 Anagawa, Inage-ku, Chiba, 263-8555, Japan
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20
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Somboon S, Kavasi N, Sahoo SK, Inoue K, Arae H, Tsuruoka H, Shimizu H, Fukushi M. Radiocesium and 40K distribution of river sediments and floodplain deposits in the Fukushima exclusion zone. J Environ Radioact 2018; 195:40-53. [PMID: 30243099 DOI: 10.1016/j.jenvrad.2018.09.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 09/04/2018] [Accepted: 09/05/2018] [Indexed: 06/08/2023]
Abstract
In this study, radiocesium and 40K analysis were accomplished for samples of riverbed sediments and floodplain deposits collected from five rivers in the vicinity (<20 km) of the damaged Fukushima Daiichi Nuclear Power Plant after seven years of the accident. Sediment particle size distribution and major oxide content were determined also for six selected samples to understand the retention and migration process of radiocesium in river environments. The radiocesium activity concentration varied from 103 ± 6 Bq·kg-1 to 22,000 ± 500 Bq·kg-1 in riverbed sediments and from 92 ± 5 Bq·kg-1 to 117,000 ± 2000 Bq·kg-1 in floodplain deposits. The 134Cs/137Cs ratio (decay corrected to 15 March 2011) was 1.02 in the both samples. Compared to monitoring results in 2011, it was proved that the radiocesium distribution pattern had been changed remarkably during seven years. The radiocesium was primarily attached to fine clay particles but its sorption on sand and coarse sand particles was also considerable. The sorption process of radiocesium was not affected by the presence of water and moreover, after seven years of the Fukushima accident, a significant radiocesium migration cannot be expected without particle migration. Consequently, radiocesium will remain for a long time in the river environments and its redistribution is mainly affected by the erosion process of the sediments. The average 40K activity concentration of riverbed sediment and floodplain deposit samples was 640 ± 152 Bq·kg-1 changing from 319 ± 18 Bq·kg-1 to 916 ± 41 Bq·kg-1. In the river estuary zones, significant activity concentration decrements were observed for both radionuclides. This suggests that seawater intrusion has a decreasing effect on both natural and artificial radionuclides via wash-out of particulate radiocesium and 40K, and desorption of these radionuclides, but to reveal the detail of this process further investigations are required. The analysis of 40K can help in a simple and easy way to reveal the mineral composition differences of sediment samples.
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Affiliation(s)
- S Somboon
- Tokyo Metropolitan University, 7-2-10 Higashiogu, Arakawa-ku, Tokyo, 116-8551, Japan; National Institutes for Quantum and Radiological Science and Technology (QST), National Institute of Radiological Sciences, 4-9-1Anagawa, Inage-ku, Chiba, 263-8555, Japan
| | - N Kavasi
- National Institutes for Quantum and Radiological Science and Technology (QST), National Institute of Radiological Sciences, 4-9-1Anagawa, Inage-ku, Chiba, 263-8555, Japan
| | - S K Sahoo
- National Institutes for Quantum and Radiological Science and Technology (QST), National Institute of Radiological Sciences, 4-9-1Anagawa, Inage-ku, Chiba, 263-8555, Japan.
| | - K Inoue
- Tokyo Metropolitan University, 7-2-10 Higashiogu, Arakawa-ku, Tokyo, 116-8551, Japan
| | - H Arae
- National Institutes for Quantum and Radiological Science and Technology (QST), National Institute of Radiological Sciences, 4-9-1Anagawa, Inage-ku, Chiba, 263-8555, Japan
| | - H Tsuruoka
- Tokyo Metropolitan University, 7-2-10 Higashiogu, Arakawa-ku, Tokyo, 116-8551, Japan
| | - H Shimizu
- Tokyo Metropolitan University, 7-2-10 Higashiogu, Arakawa-ku, Tokyo, 116-8551, Japan
| | - M Fukushi
- Tokyo Metropolitan University, 7-2-10 Higashiogu, Arakawa-ku, Tokyo, 116-8551, Japan
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21
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Pradhan J, Mohanty C, Sahoo SK. Protective efficacy of crocetin and its nanoformulation against cyclosporine A-mediated toxicity in human embryonic kidney cells. Life Sci 2018; 216:39-48. [PMID: 30444987 DOI: 10.1016/j.lfs.2018.11.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 10/23/2018] [Accepted: 11/12/2018] [Indexed: 01/15/2023]
Abstract
AIM This study is aimed to formulate crocetin-loaded lipid Nanoparticles (NPs) and to evaluate its antioxidant properties in a cyclosporine A-mediated toxicity in Human Embryonic Kidney (HEK-293) cells in vitro. MAIN METHODS Crocetin-loaded NPs were prepared followed by physicochemical characterization. In vitro protective efficacy of crocetin and crocetin loaded NPs was investigated in cyclosporine A-mediated toxicity in HEK-293 cells by assessing free radical scavenging, DNA Nicking, cytotoxicity, intracellular Reactive oxygen species (ROS) inhibition, Mitochondrial membrane potential (MMPs) loss and evaluating the activity and expression of antioxidant enzymes and non-enzyme level. Further, we have studied the mechanism of protective activity of crocetin either native or in NPs by studying the expression of phase II detoxifying proteins (HO-1) via Nrf2 mediated regulation. KEY FINDINGS Our results showed that pretreatment with crocetin and crocetin-loaded NPs attenuated the cyclosporine A-mediated toxicity, ROS production and exhibited enhance free radical scavenging ability and cytoprotective activity. Further, the treatment prevented MMPs loss by directly scavenging the ROS and restored the antioxidant enzyme network with normalization of heme oxygenase-1 (HO-1) expression by inhibiting nuclear translocation of Nrf2. SIGNIFICANCE Pretreatment of crocetin and crocetin-loaded NPs provided pronounce protective effect against cyclosporine A-mediated toxicity in HEK-293 cells by nullifying the ROS formation and restored antioxidant network through inhibition of Nrf2 translocation and followed by expression of HO-1. Such an approach may be anticipated to be beneficial for antioxidant therapy.
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Affiliation(s)
- Jyotsnarani Pradhan
- Institute of Life Sciences, Bhubaneswar, Odisha, India; P.G. Department of Biotechnology, Utkal University, Bhubaneswar, Odisha, India
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Janik M, Al-Azmi D, Sahoo SK. THE SCREENING INDOOR RADON AND PRELIMINARY STUDY OF INDOOR THORON CONCENTRATION LEVELS IN KUWAIT. Radiat Prot Dosimetry 2018; 181:246-254. [PMID: 29438569 DOI: 10.1093/rpd/ncy020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 01/22/2018] [Indexed: 06/08/2023]
Abstract
Indoor measurements of radon and thoron in Kuwait were conducted during the years 2015 and 2016. In this study, 65 dwellings were selected for the long-term radon-thoron survey using passive nuclear track monitors. The monitors (at least one) were used at various locations in the dwellings for 83-306 days. Some measurements were also repeated at the same locations in different seasons. This current study is a preliminary thoron survey with relatively small sample size. The results showed that the range of thoron concentration was from below the lower limit of detection to 35 Bq m-3, whereas the range of radon concentration was within 10-202 Bq m-3. Furthermore, 22% of the radon results exceeded the WHO radon reference level of 100 Bq m-3. The analysis of variance showed a correlation between indoor radon concentration and the season. However, the thoron measurements were rather limited and the values were low. In addition, the relationship was investigated between radon and thoron concentrations involving the floor levels and the type of ventilation systems used.
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Affiliation(s)
- M Janik
- National Institutes for Quantum and Radiological Sciences and Technology, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba, Japan
| | - D Al-Azmi
- Department of Applied Sciences, College of Technological Studies, Public Authority for Applied Education and Training, Shuwaikh, Kuwait
| | - S K Sahoo
- National Institutes for Quantum and Radiological Sciences and Technology, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba, Japan
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Mohanty C, Sahoo SK. Curcumin and its topical formulations for wound healing applications. Drug Discov Today 2017; 22:1582-1592. [PMID: 28711364 DOI: 10.1016/j.drudis.2017.07.001] [Citation(s) in RCA: 156] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 06/23/2017] [Accepted: 07/04/2017] [Indexed: 01/03/2023]
Abstract
Oxidative damage and inflammation have been identified, through clinical and preclinical studies, as the main causes of nonhealing chronic wounds. Reduction of persistent chronic inflammation by application of antioxidant and anti-inflammatory agents such as curcumin has been well studied. However, low aqueous solubility, poor tissue absorption, rapid metabolism and short plasma half-life have made curcumin unsuitable for systemic administration for better wound healing. Recently, various topical formulations of curcumin such as films, fibers, emulsion, hydrogels and different nanoformulations have been developed for targeted delivery of curcumin at wounded sites. In this review, we summarize and discuss different topical formulations of curcumin with emphasis on their wound-healing properties in animal models.
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Affiliation(s)
- Chandana Mohanty
- Institute of Life Sciences, Nalco Square, Bhubaneswar, Orissa 751023, India
| | - Sanjeeb K Sahoo
- Institute of Life Sciences, Nalco Square, Bhubaneswar, Orissa 751023, India.
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24
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Lenka P, Gupta A, Sahoo SK, Kale PK, Ravi PM, Tripathi R. Improvement in minimum detectable activity for low energy gamma by optimization in counting geometry. Radiat Prot Environ 2017. [DOI: 10.4103/rpe.rpe_12_17] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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25
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Lenka P, Gupta A, Sahoo SK, Patra A, Kumar AV, Ravi PM, Tripathi R. Study of equilibrium status among uranium and thorium series radionuclides in soil samples from Visakhapatnam, India. Radiat Prot Environ 2017. [DOI: 10.4103/rpe.rpe_13_17] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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26
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Kundu P, Das M, Tripathy K, Sahoo SK. Delivery of Dual Drug Loaded Lipid Based Nanoparticles across the Blood-Brain Barrier Impart Enhanced Neuroprotection in a Rotenone Induced Mouse Model of Parkinson's Disease. ACS Chem Neurosci 2016; 7:1658-1670. [PMID: 27642670 DOI: 10.1021/acschemneuro.6b00207] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Parkinson's disease (PD) is the most widespread form of dementia where there is an age related degeneration of dopaminergic neurons in the substantia nigra region of the brain. Accumulation of α-synuclein (αS) protein aggregate, mitochondrial dysfunction, oxidative stress, and neuronal cell death are the pathological hallmarks of PD. In this context, amalgamation of curcumin and piperine having profound cognitive properties, and antioxidant activity seems beneficial. However, the blood-brain barrier (BBB) is the major impediment for delivery of neurotherapeutics to the brain. The present study involves formulation of curcumin and piperine coloaded glyceryl monooleate (GMO) nanoparticles coated with various surfactants with a view to enhance the bioavailability of curcumin and penetration of both drugs to the brain tissue crossing the BBB and to enhance the anti-parkinsonism effect of both drugs in a single platform. In vitro results demonstrated augmented inhibition of αS protein into oligomers and fibrils, reduced rotenone induced toxicity, oxidative stress, and apoptosis, and activation of autophagic pathway by dual drug loaded NPs compared to native counterpart. Further, in vivo studies revealed that our formulated dual drug loaded NPs were able to cross BBB, rescued the rotenone induced motor coordination impairment, and restrained dopaminergic neuronal degeneration in a PD mouse model.
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Affiliation(s)
- Paromita Kundu
- Institute of Life Sciences, Nalco Square, Bhubaneswar 751023, India
| | - Manasi Das
- Institute of Life Sciences, Nalco Square, Bhubaneswar 751023, India
| | - Kalpalata Tripathy
- Department
of Pathology, Shri Ramachandra Bhanj Medical College, Cuttack 753007, India
| | - Sanjeeb K Sahoo
- Institute of Life Sciences, Nalco Square, Bhubaneswar 751023, India
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27
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Sharma KK, Shukla VR, Patel AR, Vaghela KM, Patel HK, Shah PG, Banerjee H, Banerjee T, Hudait RK, Sharma D, Sahoo SK, Singh B, Tripathy V. Multilocation field trials for risk assessment of a combination fungicide Fluopicolide + Propamocarb in tomato. Environ Monit Assess 2016; 188:604. [PMID: 27709463 DOI: 10.1007/s10661-016-5610-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 09/21/2016] [Indexed: 06/06/2023]
Abstract
Dissipation kinetics of two systemic fungicides, namely fluopicolide and propamocarb used as a combination formulation (Infinito 68.75 SC), were studied on tomato at four different locations by the All India Network Project on Pesticide Residues to recommend their pre-harvest interval (PHI) and to propose the maximum residue limits (MRL) for the two fungicides based on chronic hazard exposure assessment. The combination fungicide was sprayed thrice at the recommended dosage of 93.75 g a.i./ha fluopicolide and 937.50 g a.i./ha propamocarb as well as at double the recommended dosage of 187.50 g a.i./ha fluopicolide and 1875.0 g a.i./ha propamocarb on tomato crops and the residues were monitored periodically by GC-MS. The fungicides dissipated to below the limit of quantification (LOQ) within 10 to 15 days, with a half-life of 2-4 days for fluopicolide and 1-2 days for propamocarb. Taking into consideration the MRLs of codex and calculations made using the method of MRL fixation of the Food Safety and Standard Authority of India (FSSAI) as well as the Organization for Economic Co-operation and Development (OECD) calculator, MRL of 5 mg/kg is proposed for fluopicolide and 15 mg/kg for propamocarb, following critical exposure of the commodity considering PHI of 1 day.
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Affiliation(s)
- K K Sharma
- All India Network Project on Pesticide Residues, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
| | - V R Shukla
- Anand Agricultural University, Anand, Gujarat, India
| | - A R Patel
- Anand Agricultural University, Anand, Gujarat, India
| | - K M Vaghela
- Anand Agricultural University, Anand, Gujarat, India
| | - H K Patel
- Anand Agricultural University, Anand, Gujarat, India
| | - Paresh G Shah
- Anand Agricultural University, Anand, Gujarat, India
| | - Hemanta Banerjee
- Bidhan Chandra Krishi Vishwavidyalaya, Kalyani, West Bengal, India
| | | | - Ram K Hudait
- Bidhan Chandra Krishi Vishwavidyalaya, Kalyani, West Bengal, India
| | - Debi Sharma
- ICAR-Indian Horticultural Research Institute, Bangalore, Karnataka, India
| | - S K Sahoo
- Punjab Agricultural University, Ludhiana, Punjab, India
| | | | - Vandana Tripathy
- All India Network Project on Pesticide Residues, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
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Sahoo SK, Kierepko R, Sorimachi A, Omori Y, Ishikawa T, Tokonami S, Prasad G, Gusain GS, Ramola RC. NATURAL RADIOACTIVITY LEVEL AND ELEMENTAL COMPOSITION OF SOIL SAMPLES FROM A HIGH BACKGROUND RADIATION AREA ON EASTERN COAST OF INDIA (ODISHA). Radiat Prot Dosimetry 2016; 171:172-178. [PMID: 27026744 DOI: 10.1093/rpd/ncw052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A comprehensive study was carried out to determine the radioactivity concentration of soil samples from different sites of a high background radiation area in the eastern coast of India, Odisha state. The dose rate measured in situ varied from 0.25 to 1.2 µSv h-1 The gamma spectrometry measurements indicated Th series elements as the main contributors to the enhanced level of radiation and allowed the authors to find the mean level of the activity concentration (±SD) for 226Ra, 228Th and 40K as 130±97, 1110±890 and 360±140 Bq kg-1, respectively. Human exposure from radionuclides occurring outdoor was estimated based on the effective dose rate, which ranged from 0.14±0.02 to 2.15±0.26 mSv and was higher than the UNSCEAR annual worldwide average value 0.07 mSv. Additionally, X-ray fluorescence analysis provided information about the content of major elements in samples and indicated the significant amount of Ti (7.4±4.9 %) in soils.
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Affiliation(s)
- S K Sahoo
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan
| | - R Kierepko
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan
- Institute of Nuclear Physics, PAS, 152 ul.Radzikowskiego, Krakow 31-342, Poland
| | - A Sorimachi
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan
- Fukushima Medical University, 1 Hikarigaoka, Fukushima 960-1295, Japan
| | - Y Omori
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan
- Fukushima Medical University, 1 Hikarigaoka, Fukushima 960-1295, Japan
| | - T Ishikawa
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan
- Fukushima Medical University, 1 Hikarigaoka, Fukushima 960-1295, Japan
| | - S Tokonami
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan
- Hirosaki University, 66-1 Hon-cho, Hirosaki, Aomori 036-8564, Japan
| | - G Prasad
- Department of Physics, H.N.B. Garhwal University, BadshahiThaul Campus, Tehri Garhwal 249199, India
| | - G S Gusain
- Department of Physics, H.N.B. Garhwal University, BadshahiThaul Campus, Tehri Garhwal 249199, India
| | - R C Ramola
- Department of Physics, H.N.B. Garhwal University, BadshahiThaul Campus, Tehri Garhwal 249199, India
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29
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Sahoo SK, Planavsky NJ, Jiang G, Kendall B, Owens JD, Wang X, Shi X, Anbar AD, Lyons TW. Oceanic oxygenation events in the anoxic Ediacaran ocean. Geobiology 2016; 14:457-68. [PMID: 27027776 DOI: 10.1111/gbi.12182] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Accepted: 02/06/2016] [Indexed: 05/15/2023]
Abstract
The ocean-atmosphere system is typically envisioned to have gone through a unidirectional oxygenation with significant oxygen increases in the earliest (ca. 635 Ma), middle (ca. 580 Ma), or late (ca. 560 Ma) Ediacaran Period. However, temporally discontinuous geochemical data and the patchy metazoan fossil record have been inadequate to chart the details of Ediacaran ocean oxygenation, raising fundamental debates about the timing of ocean oxygenation, its purported unidirectional rise, and its causal relationship, if any, with the evolution of early animal life. To better understand the Ediacaran ocean redox evolution, we have conducted a multi-proxy paleoredox study of a relatively continuous, deep-water section in South China that was paleogeographically connected with the open ocean. Iron speciation and pyrite morphology indicate locally euxinic (anoxic and sulfidic) environments throughout the Ediacaran in this section. In the same rocks, redox sensitive element enrichments and sulfur isotope data provide evidence for multiple oceanic oxygenation events (OOEs) in a predominantly anoxic global Ediacaran-early Cambrian ocean. This dynamic redox landscape contrasts with a recent view of a redox-static Ediacaran ocean without significant change in oxygen content. The duration of the Ediacaran OOEs may be comparable to those of the oceanic anoxic events (OAEs) in otherwise well-oxygenated Phanerozoic oceans. Anoxic events caused mass extinctions followed by fast recovery in biologically diversified Phanerozoic oceans. In contrast, oxygenation events in otherwise ecologically monotonous anoxic Ediacaran-early Cambrian oceans may have stimulated biotic innovations followed by prolonged evolutionary stasis.
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Affiliation(s)
- S K Sahoo
- Department of Geoscience, University of Nevada, Las Vegas, NV, USA
| | - N J Planavsky
- Department of Geology and Geophysics, Yale University, New Haven, CT, USA
| | - G Jiang
- Department of Geoscience, University of Nevada, Las Vegas, NV, USA
| | - B Kendall
- Department of Earth and Environmental Sciences, University of Waterloo, Waterloo, ON, Canada
| | - J D Owens
- Department of Earth, Ocean and Atmospheric Science, Florida State University, Tallahassee, FL, USA
| | - X Wang
- School of Earth Science and Resources, China University of Geosciences, Beijing, China
| | - X Shi
- School of Earth Science and Resources, China University of Geosciences, Beijing, China
| | - A D Anbar
- Department of Chemistry and Biochemistry, School of Earth and Space Exploration, Arizona State University, Tempe, AZ, USA
| | - T W Lyons
- Department of Earth Sciences, University of California, Riverside, CA, USA
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30
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Abstract
Brain diseases are the most serious health problems; represent a significant and worldwide public health problem. Small interfering RNAs (siRNAs) can initiate specific silencing of genes and are potential therapeutic agents for many genetically influenced diseases including brain disease. However, on systemic administration the blood-brain barrier (BBB) poses most significant obstacle for the therapeutic siRNAs delivery to the brain. Therefore, the development of successful approaches to enhance siRNA delivery to the brain is of immense interest in clinical and pharmaceutical research. At present, intranasal delivery approach serves as an effective mode of direct delivery of siRNAs to brain by bypassing BBB. In this review, we describe the principles of RNA interference (RNAi) machinery; challenges associated with siRNAs in therapeutics brain targeting and summarize the recent progress made in the use of vector based siRNA technology. Further, it is anticipated that intranasal delivery approach will have a very important role to play in the future for the translation of siRNAs therapeutics from bench to bedside for different brain diseases.
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Affiliation(s)
| | | | - Sanjeeb K Sahoo
- Laboratory for Nanomedicine, Institute of Life Sciences, Nalco Square, Chandrasekharpur, Bhubaneswar, Orissa, India.
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31
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Acharya S, Sahoo SK. Exploitation of redox discrepancy in leukemia cells by a reactive oxygen species nanoscavenger for inducing cytotoxicity in imatinib resistant cells. J Colloid Interface Sci 2016; 467:180-191. [DOI: 10.1016/j.jcis.2016.01.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 01/06/2016] [Accepted: 01/06/2016] [Indexed: 10/22/2022]
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32
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Jha VN, Tripathi RM, Sethy NK, Sahoo SK. Uptake of uranium by aquatic plants growing in fresh water ecosystem around uranium mill tailings pond at Jaduguda, India. Sci Total Environ 2016; 539:175-184. [PMID: 26360459 DOI: 10.1016/j.scitotenv.2015.08.120] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 08/08/2015] [Accepted: 08/21/2015] [Indexed: 06/05/2023]
Abstract
Concentration of uranium was determined in aquatic plants and substrate (sediment or water) of fresh water ecosystem on and around uranium mill tailings pond at Jaduguda, India. Aquatic plant/substrate concentration ratios (CRs) of uranium were estimated for different sites on and around the uranium mill tailings disposal area. These sites include upstream and downstream side of surface water sources carrying the treated tailings effluent, a small pond inside tailings disposal area and residual water of this area. Three types of plant groups were investigated namely algae (filamentous and non-filamentous), other free floating & water submerged and sediment rooted plants. Wide variability in concentration ratio was observed for different groups of plants studied. The filamentous algae uranium concentration was significantly correlated with that of water (r=0.86, p<0.003). For sediment rooted plants significant correlation was found between uranium concentration in plant and the substrate (r=0.88, p<0.001). Both for other free floating species and sediment rooted plants, uranium concentration was significantly correlated with Mn, Fe, and Ni concentration of plants (p<0.01). Filamentous algae, Jussiaea and Pistia owing to their high bioproductivity, biomass, uranium accumulation and concentration ratio can be useful for prospecting phytoremediation of stream carrying treated or untreated uranium mill tailings effluent.
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Affiliation(s)
- V N Jha
- Health Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
| | - R M Tripathi
- Health Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
| | - N K Sethy
- Health Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
| | - S K Sahoo
- Health Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
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Kavasi N, Sahoo SK, Arae H, Yoshida S, Sorimachi A, Tokonami S. Measurement of 90Sr in contaminated Fukushima soils using liquid scintillation counter. Radiat Prot Dosimetry 2015; 167:376-379. [PMID: 25956786 DOI: 10.1093/rpd/ncv282] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A method based on liquid scintillation counting system has been developed for the measurement of (90)Sr in Fukushima soil samples due to contamination of (134)Cs and (137)Cs. Three soil samples were collected within 30 km radius from the Fukushima Daiichi Nuclear Power Plant (FDNPP). Activity concentration of (134)Cs and (137)Cs were measured using a gamma spectroscopy system with high-purity germanium detector. (90)Sr contamination is little elevated but comparable with the background contamination level that originated from atmospheric nuclear weapon tests, whereas radiocesium contamination has increased significantly. Activity concentration of (90)Sr in the soil samples varied in the range of 10.4±0.6-22.0±1.2 Bq kg(-1). Activity concentrations of (134)Cs and (137)Cs in the soil samples were in the range of 28.2±0.2-56.3±0.2 kBq kg(-1) and 35.2±0.1-70.2±0.2 kBq kg(-1), respectively (reference date for decay correction is 1 December 2011).
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Affiliation(s)
- N Kavasi
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555 Japan
| | - S K Sahoo
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555 Japan
| | - H Arae
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555 Japan
| | - S Yoshida
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555 Japan
| | - A Sorimachi
- Fukushima Medical University, 1 Hikarigaoka, Fukushima city, Fukushima 960-1295 Japan
| | - S Tokonami
- Hirosaki University, 66-1 Hon-cho, Hirosaki City, Aomori 036-8564, Japan
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Shiroma Y, Hosoda M, Ishikawa T, Sahoo SK, Tokonami S, Furukawa M. Estimation of radon emanation coefficient for representative soils in Okinawa, Japan. Radiat Prot Dosimetry 2015; 167:147-150. [PMID: 25920788 DOI: 10.1093/rpd/ncv233] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Radon ((222)Rn) emanation coefficients for the representative soils distributed in Okinawa Island, Japan, have been estimated empirically. Arithmetic means of the emanation coefficients for dry and moist conditions were calculated to be 0.19 and 0.29, respectively. In Okinawa, the soils are traditionally classified into three types, namely the dark red soils, the residual regosols and the red and yellow soils. The dark red soils have relatively high coefficients. The residual regosols and the red and yellow soils have relatively low coefficients. To investigate the variable factor of the emanation coefficients, analyses of radioactive elements and physical properties have also been performed on the soils. For the dark red soils, the contents of the fine particle and the (226)Ra are relatively higher than those for the other soils. Based on these results, it is suggested that the variation in the radon emanation coefficient is mainly regulated by the (226)Ra concentration, the particle sizes and the water contents of the soils.
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Affiliation(s)
- Y Shiroma
- Graduate School of Engineering and Sciences, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa 903-0213, Japan
| | - M Hosoda
- Hirosaki University Graduate School of Health Sciences, 66-1 Hon-cho, Hirosaki, Aomori 036-8564, Japan
| | - T Ishikawa
- School of Medicine, Fukushima Medical University, 1 Hikariga-oka, Fukushima City 960-1295, Japan
| | - S K Sahoo
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - S Tokonami
- Institute of Radiation Emergency Medicine, Hirosaki University, 66-1 Hon-cho, Hirosaki, Aomori 036-8564, Japan
| | - M Furukawa
- Graduate School of Engineering and Sciences, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa 903-0213, Japan
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35
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Kudo H, Tokonami S, Omori Y, Ishikawa T, Iwaoka K, Sahoo SK, Akata N, Hosoda M, Wanabongse P, Pornnumpa C, Sun Q, Li X, Akiba S. Comparative dosimetry for radon and thoron in high background radiation areas in China. Radiat Prot Dosimetry 2015; 167:155-159. [PMID: 25935013 DOI: 10.1093/rpd/ncv235] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The present study focuses on internal exposure caused by the inhalation of radon and thoron progenies because the internal exposures have not yet been clarified. For their dose assessment, radon, thoron and thoron progeny concentrations were measured by passive monitors over a long period (for 6 months). Consequently, radon, thoron and equilibrium equivalent thoron concentrations were given as 124 ± 78, 1247 ± 1189 and 7.8 ± 9.1 Bq m(-3), respectively. Annual effective doses are estimated to be 3.1 ± 2.0 mSv for radon and 2.2 ± 2.5 mSv for thoron. Total dose are estimated to be 5.3 ± 3.5 mSv a(-1). The present study has revealed that the radon dose was comparable with the thoron dose, and the total dose was ∼2 times higher than the worldwide average.
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Affiliation(s)
- H Kudo
- Graduate School of Health Sciences, Hirosaki University, Hirosaki, Japan
| | - S Tokonami
- Institute of Radiation Emergency Medicine Hirosaki University, Hirosaki, Japan
| | - Y Omori
- Fukushima Medical University, Fukushima, Japan
| | - T Ishikawa
- Fukushima Medical University, Fukushima, Japan
| | - K Iwaoka
- Institute of Radiation Emergency Medicine Hirosaki University, Hirosaki, Japan
| | - S K Sahoo
- National Institute of Radiological Sciences, Chiba, Japan
| | - N Akata
- National Institute for Fusion Science, Toki, Japan
| | - M Hosoda
- Graduate School of Health Sciences, Hirosaki University, Hirosaki, Japan
| | - P Wanabongse
- Institute of Radiation Emergency Medicine Hirosaki University, Hirosaki, Japan
| | - C Pornnumpa
- Graduate School of Health Sciences, Hirosaki University, Hirosaki, Japan
| | - Q Sun
- National Institute of Radiological Protection, Beijing, China
| | - X Li
- National Institute of Radiological Protection, Beijing, China
| | - S Akiba
- Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
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Mishra S, Sahoo SK, Arae H, Sorimachi A, Hosoda M, Tokonami S, Ishikawa T. Variability of radiocaesium inventory in Fukushima soil cores from one site measured at different times. Radiat Prot Dosimetry 2015; 167:344-347. [PMID: 25969520 DOI: 10.1093/rpd/ncv276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The Fukushima Daiichi Nuclear Power Plant (FDNPP) accident has resulted in the deposition of radioactive contamination of soils mainly by (134)Cs and (137)Cs. The contaminated areas are of a great concern since external radiation may lead to significant long-term doses to humans and animals. External dose rate above ground will decrease with physical decay of the radionuclides and as they migrate deeper into the soil with time. In the present study, depth profiles of Cs radioisotopes have been studied at different times over a period of 1 y. Radiocaesium inventories for (134)Cs and (137)Cs down to a depth of 10 cm at the four measurement times varied from 2.09 to 4.14 MBq m(-2) with coefficient of variation (CV): 27.4 %, n = 4 and from 2.13 to 4.23 MBq m(-2) with CV: 27.3 %, n = 4, respectively. The activity ratio for (134)Cs/(137)Cs decreased from 0.62 to 0.46 during 1 y of measurement i.e. July 2012 to June 2013. However, the ratio with decay correction (15 March 2011) was found to be constant ∼1, indicating contamination from FDNPP origin. In order to understand the radiocaesium distribution in soil profile, physico-chemical characterisation of soil has been carried out.
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Affiliation(s)
- S Mishra
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan Bhabha Atomic Research Centre, Trombay, Mumbai, India
| | - S K Sahoo
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - H Arae
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - A Sorimachi
- Fukushima Medical University, Hikarigaoka 1, Fukushima, Japan
| | - M Hosoda
- Hirosaki University, Graduate School of Health Sciences, Aomori, Japan
| | - S Tokonami
- Hirosaki University, Graduate School of Health Sciences, Aomori, Japan
| | - T Ishikawa
- Fukushima Medical University, Hikarigaoka 1, Fukushima, Japan
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Ramola RC, Prasad M, Rawat M, Dangwal A, Gusain GS, Mishra R, Sahoo SK, Tokonami S. Comparative study of various techniques for environmental radon, thoron and progeny measurements. Radiat Prot Dosimetry 2015; 167:22-28. [PMID: 25920785 DOI: 10.1093/rpd/ncv215] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Long-term average concentrations of radon, thoron and progeny were measured in normal and high background radiation areas in India using different techniques. Radon, thoron and progeny concentrations were measured using Raduet, Pin-Hole dosimeter, deposition-based CR-39 and deposition-based direct radon/thoron progeny sensor (DRPS/DTPS) detector system. All these techniques were used at a same time inside an individual dwelling. Radon concentration was recorded higher than thoron concentration in Garhwal Homes (NBRA) while thoron concentration was found relatively higher in the houses of Chhatarpur area (HBRA) in Odisha, India. The values measured with the CR-39 detector-based technique were found comparable with the values measured with the LR-115 detector-based technique. The comparisons of results using various techniques and their usefulness in radiation measurements are discussed in detail.
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Affiliation(s)
- R C Ramola
- Department of Physics, H.N.B. Garhwal University, Badshahi Thaul Campus, Tehri Garhwal 249 199, India
| | - Mukesh Prasad
- Department of Physics, H.N.B. Garhwal University, Badshahi Thaul Campus, Tehri Garhwal 249 199, India
| | - Mukesh Rawat
- Department of Physics, H.N.B. Garhwal University, Badshahi Thaul Campus, Tehri Garhwal 249 199, India
| | - Anoop Dangwal
- Department of Physics, H.N.B. Garhwal University, Badshahi Thaul Campus, Tehri Garhwal 249 199, India
| | - G S Gusain
- Department of Physics, Govt Post Graduate College, New Tehri 249 001, India
| | - Rosaline Mishra
- Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - S K Sahoo
- National Institute of Radiological Sciences, Anagawa 4-9-1, Inage-ku, Chiba 263-8555, Japan
| | - S Tokonami
- Institute of Radiation Emergency Medicine, Hirosaki University, Aomori 036-8564, Japan
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Singh A, Jain S, Senapati S, Verma RS, Sahoo SK. Magnetic Nanoparticles Labeled Mesenchymal Stem Cells: A Pragmatic Solution toward Targeted Cancer Theranostics. Adv Healthc Mater 2015; 4:2078-2089. [PMID: 26332511 DOI: 10.1002/adhm.201500343] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Indexed: 01/14/2023]
Abstract
Mesenchymal stem cells (MSCs) have gained much interest to be used as targeting vehicle in cancer therapy due to the intrinsic tumor-homing behavior associated with them. In this scenario, superparamagnetic nanoparticles are emerging as an ideal probe for noninvasive cell tracking for different stem cell applications. In the study, it is demonstrated that the formulated aqueous dispersible glyceryl monooleate coated magnetic nanoparticles (MNPs) can act as a better labeling and efficient tracking agent without affecting the inherent properties of MSCs. The MNPs-MSCs facilitate the stem cell tracking by magnetic resonance imaging at a very low cell number having high T2 relaxivity and potentiates the use of MNPs-MSCs as a prospective diagnostic tool. Most importantly, the homing of MNPs-MSCs toward inflammation site, subcutaneous prostate tumor (small as well as large tumor), and in orthotopic prostate tumor suggests the clinical relevance of the system. In addition, intraperitoneal delivery of MNPs-MSCs shows enhanced tumor accumulation and less sequestration in liver as revealed by in vivo imaging and histological studies. The results here demonstrate that MNPs-MSCs may prove as a better targeted delivery agent for early diagnosis of tumors even of smaller size.
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Affiliation(s)
- Abhalaxmi Singh
- Institute of Life Sciences; Nalco Square; Chandrasekharpur Bhubaneswar 751023 India
| | - Sumeet Jain
- Institute of Life Sciences; Nalco Square; Chandrasekharpur Bhubaneswar 751023 India
| | | | - Rama Shanker Verma
- Bhupat and Jyoti Mehta School of Biosciences; Department of Biotechnology; Indian Institute of Technology; Chennai 600036 TN India
| | - Sanjeeb K. Sahoo
- Institute of Life Sciences; Nalco Square; Chandrasekharpur Bhubaneswar 751023 India
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Sahoo SK, Žunić ZS, Kritsananuwat R, Zagrodzki P, Bossew P, Veselinovic N, Mishra S, Yonehara H, Tokonami S. Distribution of uranium, thorium and some stable trace and toxic elements in human hair and nails in Niška Banja Town, a high natural background radiation area of Serbia (Balkan Region, South-East Europe). J Environ Radioact 2015; 145:66-77. [PMID: 25875006 DOI: 10.1016/j.jenvrad.2015.03.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 03/13/2015] [Indexed: 06/04/2023]
Abstract
Human hair and nails can be considered as bio-indicators of the public exposure to certain natural radionuclides and other toxic metals over a long period of months or even years. The level of elements in hair and nails usually reflect their levels in other tissues of body. Niška Banja, a spa town located in southern Serbia, with locally high natural background radiation was selected for the study. To assess public exposure to the trace elements, hair and nail samples were collected and analyzed. The concentrations of uranium, thorium and some trace and toxic elements (Mn, Ni, Cu, Sr, Cd, and Cs) were determined using inductively coupled plasma mass spectrometry (ICP-MS). U and Th concentrations in hair varied from 0.0002 to 0.0771 μg/g and from 0.0002 to 0.0276 μg/g, respectively. The concentrations in nails varied from 0.0025 to 0.0447 μg/g and from 0.0023 to 0.0564 μg/g for U and Th, respectively. We found significant correlations between some elements in hair and nails. Also indications of spatial clustering of high values could be found. However, this phenomenon as well as the large variations in concentrations of heavy metals in hair and nail could not be explained. As hypotheses, we propose possible exposure pathways which may explain the findings, but the current data does not allow testing them.
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Affiliation(s)
- S K Sahoo
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan.
| | - Z S Žunić
- Institute of Nulcear Sciences "Vinca", University of Belgrade, P.O Box 522, 11000 Beograd, Serbia
| | - R Kritsananuwat
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - P Zagrodzki
- Department of Food Chemistry and Nutrition, Medical College Jagiellonian University, Medyczna 9, 30-688 Kraków, Poland; Henryk Niewodniczański Institute of Nuclear Physics, Radzikowskiego 152, 31-342 Kraków, Poland
| | - P Bossew
- German Fedearal Office for Radiation Protection, Köpenicker Allee 120-130, 10318 Berlin, Germany
| | - N Veselinovic
- Institute of Nulcear Sciences "Vinca", University of Belgrade, P.O Box 522, 11000 Beograd, Serbia
| | - S Mishra
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - H Yonehara
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - S Tokonami
- Institute of Radiation Emergency Medicine, Hirosaki University, Aomori 036-8564, Japan
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Das M, Duan W, Sahoo SK. Multifunctional nanoparticle–EpCAM aptamer bioconjugates: A paradigm for targeted drug delivery and imaging in cancer therapy. Nanomedicine: Nanotechnology, Biology and Medicine 2015; 11:379-89. [DOI: 10.1016/j.nano.2014.09.002] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 08/28/2014] [Accepted: 09/09/2014] [Indexed: 11/30/2022]
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Chahil GS, Mandal K, Sahoo SK, Singh B. Risk assessment of mixture formulation of spirotetramat and imidacloprid in chilli fruits. Environ Monit Assess 2015; 187:4105. [PMID: 25467410 DOI: 10.1007/s10661-014-4105-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Accepted: 10/28/2014] [Indexed: 06/04/2023]
Abstract
Persistence and risk assessment of spirotetramat and imidacloprid in chilli fruits were studied following three applications of a mixture formulation of spirotetramat (12%) and imidacloprid (12%) at 1000 and 2000 mL ha(-1). Residues of spirotetramat and imidacloprid in chilli were estimated by high-performance liquid chromatograph (HPLC). Residues of spirotetramat and imidacloprid dissipated to more than 65% after 3 days at both the dosages. Residues of spirotetramat on chilli fruits were found to be below its limit of quantification (LOQ) of 0.03 mg kg(-1) after 5 and 7 days for recommended and double the recommended dosages, respectively. Similarly, imidacloprid residues were found to be below its LOQ of 0.01 mg kg(-1) at 7 and 10 days, respectively. Half-life periods for spirotetramat were found to be 1.91 and 1.30 days, whereas, for imidacloprid, these values were observed to be 1.41 and 1.65 days at recommended and double the recommended dosages, respectively. Red chilli samples collected after 20 days of the last application did not show the presence of spirotetramat and imidacloprid at their respective determination limit. As the theoretical maximum residue contributions on chilli fruits are found to be less than the maximum permissible intake values on initial deposits, a waiting period of 1 day may follow to reduce risk before consumption at the recommended dose.
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Affiliation(s)
- G S Chahil
- Pesticide Residue Analysis Laboratory, Department of Entomology, Punjab Agricultural University, Ludhiana, Punjab, 141004, India
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Misra R, Das M, Sahoo BS, Sahoo SK. Reversal of multidrug resistance in vitro by co-delivery of MDR1 targeting siRNA and doxorubicin using a novel cationic poly(lactide-co-glycolide) nanoformulation. Int J Pharm 2014; 475:372-84. [PMID: 25178825 DOI: 10.1016/j.ijpharm.2014.08.056] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Revised: 08/22/2014] [Accepted: 08/27/2014] [Indexed: 12/22/2022]
Abstract
Over expression of drug efflux transporters such as P-glycoprotein (P-gp) cumulatively leading to multidrug resistance (MDR) embodies a major hindrance for successful cancer therapy. A paradigm nanomedicinal approach involving an anticancer drug and modulators of drug resistance within one multifunctional nanocarrier-based delivery system represent an ideal modality for the treatment of MDR. In this regards, we have developed a cationic polymeric nanoparticulate system loaded with MDR1-siRNA and doxorubicin. Results indicated augmented synergistic effect of combinational nanoformulation in overcoming MDR in MCF-7/ADR cells. Therefore, the above regime could be a promising co-delivery system for effective therapy of drug resistant breast cancer.
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Affiliation(s)
- Ranjita Misra
- Institute of Life Sciences, Nalco Square, Chandrasekharpur, Bhubaneswar, Orissa, India
| | - Manasi Das
- Institute of Life Sciences, Nalco Square, Chandrasekharpur, Bhubaneswar, Orissa, India
| | - Bhabani Sankar Sahoo
- Institute of Life Sciences, Nalco Square, Chandrasekharpur, Bhubaneswar, Orissa, India
| | - Sanjeeb K Sahoo
- Institute of Life Sciences, Nalco Square, Chandrasekharpur, Bhubaneswar, Orissa, India.
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Singh A, Sahoo SK. Magnetic nanoparticles: a novel platform for cancer theranostics. Drug Discov Today 2014; 19:474-81. [DOI: 10.1016/j.drudis.2013.10.005] [Citation(s) in RCA: 216] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Revised: 09/04/2013] [Accepted: 10/08/2013] [Indexed: 11/25/2022]
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Jha VN, Kumar R, Ravi PM, Sahoo SK, Sethy NK, Tripathi RM. Comparison of natural distribution pattern of uranium in groundwater in the vicinity of tailings management facilities at Jaduguda and Turamdih in Singhbhum region, Jharkhand. Radiat Prot Environ 2014. [DOI: 10.4103/0972-0464.154867] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Misra R, Sahoo SK. Correction to “Coformulation of Doxorubicin and Curcumin in Poly-( d, l-lactide- co-glycolide) Nanoparticles Suppresses the Development of Multidrug Resistance in K562 Cells”. Mol Pharm 2013. [DOI: 10.1021/mp400618m] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ranjita Misra
- Institute of Life Sciences, Nalco Square, Chandrasekharpur, Bhubaneswar, Orissa, India
| | - Sanjeeb K. Sahoo
- Institute of Life Sciences, Nalco Square, Chandrasekharpur, Bhubaneswar, Orissa, India
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Mohapatra S, Sahoo SK, Vinod Kumar A, Patra AC, Lenka P, Dubey JS, Thakur VK, Tripathi RM, Puranik VD. Distribution of norm and 137Cs in soils of the Visakhapatnam region, Eastern India, and associated radiation dose. Radiat Prot Dosimetry 2013; 157:95-104. [PMID: 23620565 DOI: 10.1093/rpd/nct108] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The specific activity of naturally occurring radioactive materials and (137)Cs in surface soils around the new Bhabha Atomic Research Centre site at Visakhapatnam region, Eastern India, has been determined using high-resolution gamma-ray spectrometry as part of a baseline radiological survey. Radiation hazard for the samples was assessed by radium equivalent activity (Raeq) and absorbed gamma dose rate (D). The mean absorbed gamma dose rate was found to be 104.9 nGy h(-1). The average annual effective dose equivalent was found to be 0.13 mSv y(-1).
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Affiliation(s)
- S Mohapatra
- Environmental Assessment Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
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Abstract
Malaria is one of the commonest parasitic disease in the tropics since ages. However the plasmodium still continues to give surprises to all of us. In the similar context we report a case of Plasmodium vivax induced myocarditis in a 20 year old male and review the literature related to this rare entitiy.
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Affiliation(s)
- N Gupta
- Department of Medicine, University College of Medical Sciences, Dilshad Garden, New Delhi, India
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Patra AC, Sahoo SK, Tripathi RM, Puranik VD. Distribution of radionuclides in surface soils, Singhbhum Shear Zone, India and associated dose. Environ Monit Assess 2013; 185:7833-7843. [PMID: 23456273 DOI: 10.1007/s10661-013-3138-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2012] [Accepted: 02/08/2013] [Indexed: 06/01/2023]
Abstract
Gamma emitters were estimated in surface soils from a mineralized zone in Eastern India using high purity Germanium detector-based high resolution gamma spectrometry system. Activities of (238)U, (226)Ra, (232)Th, (235)U, (227)Th, (234 m)Pa, (210)Pb, (40)K, and (137)Cs were 79 ± 50, 81 ± 53, 65 ± 23, 4 ± 2, 5 ± 4, 92 ± 50, 97 ± 45, 517 ± 201, and 4 ± 2 Bq/kg, respectively. Most radionuclides were observed to follow log-normal distribution. The correlation between physicochemical properties of the samples, like pH, organic matter content, particle size, and moisture content were also studied. Activity ratios of (226)Ra/(238)U, (210)Pb/(226)Ra, and (227)Th/(235)U indicated deviation from secular equilibrium in some samples. The associated annual effective dose ranged from 0.07 to 0.24 mSv and the mean was calculated to be 0.12 ± 0.04 mSv for this region, indicating it to be one of normal natural background radiation.
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Affiliation(s)
- A C Patra
- Environmental Assessment Division, Bhabha Atomic Research Centre, Mumbai, 400 085 Trombay, India.
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Patra AC, Mohapatra S, Sahoo SK, Lenka P, Dubey JS, Tripathi RM, Puranik VD. Age-dependent dose and health risk due to intake of uranium in drinking water from Jaduguda, India. Radiat Prot Dosimetry 2013; 155:210-216. [PMID: 23525912 DOI: 10.1093/rpd/ncs328] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Uranium is a heavy metal that is not only radiologically harmful but also a well-known nephrotoxic element. In this study, occurrence of uranium in drinking water samples from locations near the uranium mining site at Jaduguda, India, was studied by Laser-induced fluorimetry. Uranium concentrations range from 0.03 ± 0.01 to 11.6 ± 1.3 µg l(-l), being well within the US Environmental Protection Agency drinking water limit of 30 μg l(-1). The ingestion dose due to the presence of uranium in drinking water for various age groups varies from 0.03 to 28.3 μSv y(-1). The excess lifetime cancer risk varies from 4.3×10(-8) to 1.7×10(-5) with an average value of 4.8×10(-6), much less than the acceptable excess lifetime cancer risk of 10(-3) for radiological risk. The chemical risk (hazard quotient) has an average value of 0.15 indicating that the water is safe for drinking.
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Affiliation(s)
- A C Patra
- Environmental Assessment Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
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Hermann PC, Trabulo SM, Sainz B, Balic A, Garcia E, Hahn SA, Vandana M, Sahoo SK, Tunici P, Bakker A, Hidalgo M, Heeschen C. Multimodal Treatment Eliminates Cancer Stem Cells and Leads to Long-Term Survival in Primary Human Pancreatic Cancer Tissue Xenografts. PLoS One 2013; 8:e66371. [PMID: 23825539 PMCID: PMC3688976 DOI: 10.1371/journal.pone.0066371] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Accepted: 05/07/2013] [Indexed: 12/17/2022] Open
Abstract
Purpose In spite of intense research efforts, pancreatic ductal adenocarcinoma remains one of the most deadly malignancies in the world. We and others have previously identified a subpopulation of pancreatic cancer stem cells within the tumor as a critical therapeutic target and additionally shown that the tumor stroma represents not only a restrictive barrier for successful drug delivery, but also serves as a paracrine niche for cancer stem cells. Therefore, we embarked on a large-scale investigation on the effects of combining chemotherapy, hedgehog pathway inhibition, and mTOR inhibition in a preclinical mouse model of pancreatic cancer. Experimental Design Prospective and randomized testing in a set of almost 200 subcutaneous and orthotopic implanted whole-tissue primary human tumor xenografts. Results The combined targeting of highly chemoresistant cancer stem cells as well as their more differentiated progenies, together with abrogation of the tumor microenvironment by targeting the stroma and enhancing tissue penetration of the chemotherapeutic agent translated into significantly prolonged survival in preclinical models of human pancreatic cancer. Most pronounced therapeutic effects were observed in gemcitabine-resistant patient-derived tumors. Intriguingly, the proposed triple therapy approach could be further enhanced by using a PEGylated formulation of gemcitabine, which significantly increased its bioavailability and tissue penetration, resulting in a further improved overall outcome. Conclusions This multimodal therapeutic strategy should be further explored in the clinical setting as its success may eventually improve the poor prognosis of patients with pancreatic ductal adenocarcinoma.
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Affiliation(s)
- Patrick C. Hermann
- Stem Cells and Cancer Group, Clinical Research Programme, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Sara M. Trabulo
- Stem Cells and Cancer Group, Clinical Research Programme, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Bruno Sainz
- Stem Cells and Cancer Group, Clinical Research Programme, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Anamaria Balic
- Stem Cells and Cancer Group, Clinical Research Programme, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Elena Garcia
- Gastrointestinal Cancer Clinical Research Unit, Clinical Research Programme, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Stephan A. Hahn
- Department of Molecular GI-Oncology, Ruhr-University Bochum, Bochum, Germany
| | - Mallaredy Vandana
- Nanomedicine Laboratory, Institute of Life Sciences, Bhubaneswar, India
| | - Sanjeeb K. Sahoo
- Nanomedicine Laboratory, Institute of Life Sciences, Bhubaneswar, India
| | | | - Annette Bakker
- Children’s Tumor Foundation, New York, New York, United States of America
| | - Manuel Hidalgo
- Gastrointestinal Cancer Clinical Research Unit, Clinical Research Programme, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Christopher Heeschen
- Stem Cells and Cancer Group, Clinical Research Programme, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
- * E-mail:
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