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Pereira WDP, Carvalheira L, Lopes JM, Aguiar PFD, Moreira RM, Oliveira ECD. Data reconciliation connected to guard bands to set specification limits related to risk assessment for radiopharmaceutical activity. Heliyon 2023; 9:e22992. [PMID: 38125475 PMCID: PMC10731080 DOI: 10.1016/j.heliyon.2023.e22992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 11/22/2023] [Accepted: 11/23/2023] [Indexed: 12/23/2023] Open
Abstract
Radiopharmaceuticals have been used to diagnose several diseases, particularly because the procedure is non-invasive. However, it is important that the correct amount of radiopharmaceutical is used to avoid inaccurate diagnostic results and suboptimal therapeutic outcomes. The amount of the radiopharmaceutical is measured when produced (by the supplier) and a second time (by the receiver), before it's use. When measured at the receiver, the result is corrected for its normal radioactivity decay. Even then, it is possible that both measurements should be considered nominal different or even statistically different when compared through various statistical tools. This research combines two innovative techniques in the field of clinical metrology. The first technique is data reconciliation, which not only enhances measurement accuracy but also reduces measurement uncertainty. The second technique involves using uncertainty information to establish specification limits for compliance assessments. In this way, our proposal aimed to minimize the risk of making incorrect decisions regarding the conformity of the concentration of radiopharmaceutical activity, that is, rejecting an item or batch that is within specification or accepting an item or batch that is outside of specification. A spreadsheet, based on these metrology fundamentals, is available to help the user with the calculations, presenting numerical and graphical results for some common radioisotopes. Reliable specification limits can be calculated and used to determine if the radiopharmaceutical is in accordance with its proposed application.
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Affiliation(s)
| | - Luciana Carvalheira
- Argonauta Reactor Service, Nuclear Engineering Institute, R. Hélio de Almeida 75, 21941-614, Rio de Janeiro, Brazil
| | - José Marques Lopes
- Earth and Environmental Physics Department, Physics Institute, Federal University of Bahia, Campus Universitário de Ondina, 40210-340, Salvador, Brazil
- Postgraduate Program in Geochemistry, Petroleum and Environment (POSPETRO), Federal University of Bahia, Av. Milton Santos s/n°, Salvador, 40170-110, Brazil
| | - Paula Fernandes de Aguiar
- Federal University of Rio de Janeiro, Chemistry Institute, Avenida Athos da Silveira Ramos 149, 21941-909, Rio de Janeiro, Brazil
| | - Rosana Medeiros Moreira
- National Institute of Technology, Av. Venezuela 82 20081-312, Rio de Janeiro, Brazil
- National Institute of Metrology, Quality and Technology (INMETRO), Av. Nossa Senhora das Graças 50, 25250-020, Duque de Caxias, Brazil
| | - Elcio Cruz de Oliveira
- Postgraduate Programme in Metrology, Pontifical Catholic University of Rio de Janeiro, R. Marquês de São Vicente 225, 22451-900, Rio de Janeiro, Brazil
- Logistics, Operational Planning and Control, Measurement and Product Inventory Management, PETROBRAS S.A., Av. Henrique Valadares 28, 20231-030, Rio de Janeiro, Brazil
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Durkan K, Ichedef C, Yurt Kilcar A, Koksal Karayildirim C. In vivo behavior of technetium-99m labeled ibuprofen in infection and inflamation animal models. Drug Dev Ind Pharm 2023; 49:479-484. [PMID: 37458266 DOI: 10.1080/03639045.2023.2235009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/22/2023] [Accepted: 07/05/2023] [Indexed: 08/24/2023]
Abstract
OBJECTIVE The objective of this study was to develop radiolabeled ibuprofen (99mTc-ibu) for imaging and discrimination of inflammation and infection and compare its biodistribution in two different animal models. SIGNIFICANCE The development of radiolabeled ibuprofen as an imaging agent for inflammation and infection may have significant clinical implications for the diagnosis and management of various inflammatory and infectious diseases. This study provides a promising approach to the detection of sterile infections. METHODS Ibuprofen was radiolabeled with 99mTc using the stannous chloride method with a yield of 99.05 ± 0.83% (n = 5). The in vivo biological behavior of radiolabeled ibuprofen was determined in Wistar albino rat models of sterile inflammation and bacterial infection with Staphylococcus aureus gram-positive bacteria. Biodistribution studies were carried out at different time points, and the results were compared between the two animal models. RESULTS The uptake of 99mTc-ibu in sterile inflammation sites at all time points was higher than that in the infection sites. This suggests that 99mTc-ibu can be used to discriminate between sterile inflammation and bacterial infection. CONCLUSIONS The results of this study suggest that the detection of sterile infections with 99mTc-ibu is possible and highly encouraging.
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Affiliation(s)
- Kubra Durkan
- Department of Nuclear Applications, Institute of Nuclear Sciences, Ege University, Izmir, Bornova, Turkey
| | - Cigdem Ichedef
- Department of Biology, Faculty of Science, Ege University, Izmir, Bornova, Turkey
| | - Ayfer Yurt Kilcar
- Department of Nuclear Applications, Institute of Nuclear Sciences, Ege University, Izmir, Bornova, Turkey
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Sanad MH, Marzook FA, Ibrahim IT, Abd-Elhalim SM, Farrag NS. Preparation and Bioevaluation of Radioiodinated Omberacetam as a Radiotracer for Brain Imaging. RADIOCHEMISTRY 2023; 65:114-121. [DOI: 10.1134/s1066362223010162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 03/04/2023] [Accepted: 03/06/2023] [Indexed: 09/02/2023]
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Sanad MH, Farag AB, Marzook FA, Mandal SK. Radiocomplexation, Chromatographic Separation and Bioevaluation of [99mTc]Dithiocarbamate of Procainamide as Selective Labeled Compound for Myocardial Perfusion Imaging. Pharm Chem J 2022. [DOI: 10.1007/s11094-022-02709-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Sanad MH, Marzook FA, Mandal SK, Baidya M. Radiocomplexation and Biological Evaluation of [99mTc]Tricarbonyl Rabeprazole as a Radiotracer for Peptic Ulcer Localization. RADIOCHEMISTRY 2022. [DOI: 10.1134/s1066362222020138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Sanad MH, Eyssa HM, Marzook FA, Farag AB. Preparation and Bioevaluation of [99mTc]Tricarbonyl Omeprazole for Gastric Ulcer Localization in Mice. RADIOCHEMISTRY 2022. [DOI: 10.1134/s106636222201009x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Sanad M, Farag A, Bassem SA, Marzook F. Radioiodination of zearalenone and determination of Lactobacillus plantarum effect of on zearalenone organ distribution: In silico study and preclinical evaluation. Toxicol Rep 2022; 9:470-479. [PMID: 35345860 PMCID: PMC8956894 DOI: 10.1016/j.toxrep.2022.02.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 01/21/2022] [Accepted: 02/06/2022] [Indexed: 10/26/2022] Open
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Sanad MH, Marzook FA, Farag AB, Mandal SK, Rizvi SFA, Gupta JK. Preparation, biological evaluation and radiolabeling of [99mTc]-technetium tricarbonyl procainamide as a tracer for heart imaging in mice. RADIOCHIM ACTA 2022. [DOI: 10.1515/ract-2021-1079] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Abstract
This study focuses on the synthesis and preliminary bio-evaluation of [99mTc]-technetium tricarbonyl procainamide ([99mTc]-technetium tricarbony PA) as a viable cardiac imaging agent. The compound, [99mTc]-technetium tricarbony PA, was synthesized by labelling procainamide with a [99mTc]-technetium tricarbonyl core, yielding a high radiochemical yield and radiochemical purity of 98%. Under optimal circumstances, high radiochemical yield and purity were obtained utilizing [99mTc]-technetium tricarbonyl core within 30 min of incubation at pH 9, 200 µg substrate concentration, and 100 °C reaction temperature. The heart showed a high absorption of 32.39 ± 0.88% of the injected dose/g organ (ID/g), confirming the suitability of [99mTc]-technetium tricarbonyl PA as a viable complex for heart imaging.
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Affiliation(s)
- M. H. Sanad
- Labeled Compounds Department , Hot Laboratories Center, Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
| | - Fawzy A. Marzook
- Labeled Compounds Department , Hot Laboratories Center, Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
| | - Ayman B. Farag
- Pharmaceutical Chemistry Department , Faculty of Pharmacy, Ahram Canadian University , Giza , Egypt
| | - Sudip Kumar Mandal
- Department of Pharmaceutical Chemistry , Dr. B. C. Roy College of Pharmacy and Allied Health Sciences , Durgapur 713206 , West Bengal , India
| | - Syed F. A. Rizvi
- College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 , Gansu , P. R. China
| | - Jeetendra Kumar Gupta
- Institute of Pharmaceutical Research , GLA University Mathura , Uttar Pradesh , India
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Eyssa HM, El Refay HM, Sanad MH. Enhancement of the thermal and physicochemical properties of styrene butadiene rubber composite foam using nanoparticle fillers and electron beam radiation. RADIOCHIM ACTA 2022. [DOI: 10.1515/ract-2021-1091] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Abstract
This study investigates the physicochemical and thermal properties of styrene–butadiene rubber (SBR) nanocomposite foam. Nano-calcium carbonate (CaCO3) was prepared from eggshells (ESs) waste. Sponge rubber nanocomposites were prepared and were irradiated by electron beam (EB) radiation at 25, 75, and 150 kGy. Their physicochemical properties, including foam density, compression set (CS), hardness, abrasion loss, and expansion ratio, and their thermal stability were investigated. The physicochemical properties were enhanced by adding 2.5 phr of a foaming agent. Among the composites examined, the foam composites containing nano-CaCO3 had the lowest CS, abrasion loss, and expansion ratio and the highest hardness and foam density. The results confirmed that the thermal stability was improved by incorporating nano-CaCO3 into the SBR foam and as the radiation dose increased. The sponge containing nanoclay demonstrated an intermediate behavior, whereas that with CaCO3 nanoparticles showed low average cell diameter and size and high cell wall thickness. The radiation process enhanced the foam density, CS, abrasion loss, hardness, and thermal property of the developed nanocomposites by inducing the formation of intermolecular crosslinks within the composite matrix. The results showed that physicochemical properties improved by increasing the radiation dose at 25 kGy.
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Affiliation(s)
- H. M. Eyssa
- Radiation Chemistry Department , National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority , P. O. Box 29 , Cairo , Egypt
| | - Heba. M. El Refay
- Chemistry Department , Faculty of Science (Girls), Al Azhar University , P.O. Box: 11754 , Cairo , Egypt
| | - M. H. Sanad
- Labeled Compounds Department, Hot Labs Center , Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
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Sanad MH, Eyssa HM, Marzook FA, Rizvi SFA, Farag AB, Fouzy ASM, Bassem SA, Ibrahim AA. Synthesis, Radiolabeling, and Biological Evaluation of 99mTc-Tricarbonyl Mesalamine as a Potential Ulcerative Colitis Imaging Agent. RADIOCHEMISTRY 2022. [DOI: 10.1134/s1066362221060163] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Sanad MH, Eyssa HM, Marzook FA, Farag AB, Rizvi SFA, Mandal SK, Patnaik SS, Fouzy ASM. Optimized Chromatographic Separation and Bioevalution of Radioiodinated Ilaprazole as a New Labeled Compound for Peptic Ulcer Localization in Mice. RADIOCHEMISTRY 2022. [DOI: 10.1134/s1066362221060138] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Sanad MH, Gomaa NM, El Bakary NM, Ibrahim IT, Massoud A. Radioiodination of balsalazide, bioevaluation, and characterization as a highly selective radiotracer for imaging of ulcerative colitis in mice. J Labelled Comp Radiopharm 2022; 65:71-82. [PMID: 34984721 DOI: 10.1002/jlcr.3961] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 12/26/2021] [Accepted: 12/27/2021] [Indexed: 01/01/2023]
Abstract
This work focuses on tracking ulcerative colitis in mice. High labeling yield and radiochemical purity were achieved for the formation of a [125/131 I]balsalazide radiotracer at optimum conditions of oxidizing agent content (chloramines-T [Ch-T], 75 μg), substrate amount (100 μg), pH of reaction mixture (6), reaction time (30 min), and temperature (37°C), using radioactive iodine-125 (200-450 MBq). The radiolabeled compound, [125/131 I]balsalazide, was stable in serum and saline solution during 24 h. Balsalazide is acting as a peroxisome proliferator-activated receptor (PPARγ). Biodistribution studies were carried in normal and ulcerated colon mice. High uptake of 75 ± 1.90% injected dose/g organ (ID/g) observed in ulcerated mice confirmed the suitability of [131 I]balsalazide as a novel radiotracer for ulcerative colitis imaging in mice.
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Affiliation(s)
- M H Sanad
- Labeled Compounds Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, Cairo, Egypt.,Department of Physics and Engineering Mathematics, Faculty of Engineering, Ain Shams University, Cairo, Egypt
| | - Nermien M Gomaa
- Radiation Microbiology Department/Biotechnology/National Center for Research and Radiation Technology, Egyptian Atomic Energy Authority, Cairo, Egypt
| | - Nermeen M El Bakary
- Radiation Biology Department, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt
| | - Ismail T Ibrahim
- Labeled Compounds Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, Cairo, Egypt
| | - Ayman Massoud
- Nuclear Chemistry Department, Hot Labs Center, Egyptian Atomic Energy Authority, Cairo, Egypt
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Sanad MH, Farag AB, Marzook FA, Mandal SK. Preparation, characterization, and bioevaluation of 99mTc-famotidine as a selective radiotracer for peptic ulcer disorder detection in mice. RADIOCHIM ACTA 2021. [DOI: 10.1515/ract-2021-1105] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Abstract
This work focuses on tracking peptic ulcer localized in mice. The formation of a [99mTc]dithiocarbamate of famotidine complex at optimum conditions of reaction temperature (37 °C), reaction time (30 min), pH of the reaction mixture (5), amount of substrate (100 µg), amount of reducing agent (tin (II) content, 50 µg), was achieved using radioactive Tc-99m (250–400 MBq), with labelling yield of 98% and high radiochemical purity. The in-vitro stability of [99mTc]dithiocarbamate of famotidine complex was shown to be high in rat serum for up to 8 h. Normal and ulcerated mice were used in biodistribution studies. Famotidine works by blocking histamine-2-receptor antagonists (H2RAs). The high absorption of [99mTc]dithiocarbamate of famotidine complex in stomach in amount of 27.15% injected dose/g organ (ID/g) observed in ulcerated mice for up to 24 h demonstrated its usefulness as a novel radiotracer for stomach imaging.
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Affiliation(s)
- M. H. Sanad
- Labeled Compounds Department , Hot Laboratories Center, Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
- Department of Physics and Engineering Mathematics , Faculty of Engineering, Ain Shams University , P.O. Box 11566 , Cairo , Egypt
| | - Ayman B. Farag
- Pharmaceutical Chemistry Department, Faculty of Pharmacy , Ahram Canadian University , Giza , Egypt
| | - F. A. Marzook
- Labeled Compounds Department , Hot Laboratories Center, Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
| | - Sudip Kumar Mandal
- Department of Pharmaceutical Chemistry , Dr. B. C. Roy College of Pharmacy and Allied Health Sciences , Durgapur 713 206 , West Bengal , India
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Design of novel radiotracer 99mTcN-tetrathiocarbamate as SPECT imaging agent: a preclinical study for GFR renal function. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01926-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Sanad MH, Eyssa HM, Gomaa NM, Marzook FA, Bassem SA. Radioiodinated esomeprazole as a model for peptic ulcer localization. RADIOCHIM ACTA 2021. [DOI: 10.1515/ract-2021-1056] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Abstract
This work focuses on tracking stomach ulcer localized in mice. High labeling yield and radiochemical purity were achieved for the formation of a [125I]esomeprazole radiotracer at optimum conditions of oxidizing agent content (chloramines-T (Ch-T), 100 μg), substrate amount (Esom, 100 μg), pH of reaction mixture (6), reaction time (30 min) and temperature (37 °C), using radioactive iodine-125 (200–450 MBq). The radiolabeled compound, [125I]esom, was stable in serum and saline solution during 24 h. Esom is acting as a histamine-2-receptor antagonist (H2RA). Biodistribution studies were carried in normal and ulcerated mice. High uptake of 78.12 ± 0.80% injected dose/g organ (ID/g) observed in ulcerated mice confirmed the suitability of [125I]esomeprazole as a novel radiotracer for stomach imaging.
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Affiliation(s)
- M. H. Sanad
- Labeled Compounds Department , Hot Labs Center, Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
| | - H. M. Eyssa
- Radiation Chemistry Department , National Center for Research and Radiation Technology, Egyptian Atomic Energy Authority , P.O. Box 29 , Cairo , Egypt
| | - N. M. Gomaa
- Radiation Microbiology Department/Biotechnology/National Center for Research and Radiation Technology , Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
| | - F. A. Marzook
- Labeled Compounds Department , Hot Labs Center, Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
| | - S. A. Bassem
- Food Toxicology and Contaminants Department , National Research Centre , Dokki , Cairo , Egypt
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Sanad MH, Farag AB, Saleh GM. Radiosynthesis and Biological Evaluation of 188Re-5,10,15,20-Tetra(4-pyridyl)-21H,23H-porphyrin Complex as a Tumor-Targeting Agent. RADIOCHEMISTRY 2019. [DOI: 10.1134/s106636221903010x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Sanad MH, Talaat HM, Ibrahim IT, Saleh GM, Abouzeid LA. Radioiodinated celiprolol as a new highly selective radiotracer for β1-adrenoceptor-myocardial perfusion imaging. RADIOCHIM ACTA 2018. [DOI: 10.1515/ract-2017-2903] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The present study was oriented to synthesis radioiodinated celiprolol (Cel) for a potential cardiac imaging. Celiprolol has been labeled using 125I with chloramine-T (Ch-T) as an oxidizing agent. The key effective factors such as amount of oxidizing agent, amount of substrate, pH, reaction temperature and reaction time, have been systematically studied to optimize the iodination. The biological distribution indicates the suitability of radioiodinated Cel as a novel tracer to image heart.
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Affiliation(s)
- M. H. Sanad
- Labeled Compounds Department , Hot Labs Center , Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt , E-mail:
| | - H. M. Talaat
- Labeled Compounds Department , Hot Labs Center , Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
| | - I. T. Ibrahim
- Labeled Compounds Department , Hot Labs Center , Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
| | - G. M. Saleh
- Health Radiation Research Department (Radiodiagnosis Unit) , National Center for Radiation Research and Technology, Atomic Energy Authority , Cairo , Egypt
| | - L. A. Abouzeid
- Department of Organic Pharmaceutical Chemistry , Faculty of Pharmacy, Delta University , Mansoura , Egypt
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Motaleb MA, Sanad MH, Selim AA, El-Tawoosy M, Abd-Allah M. Synthesis, Characterization, and Radiolabeling of Heterocyclic Bisphosphonate Derivative as a Potential Agent for Bone Imaging. RADIOCHEMISTRY 2018; 60:201-207. [DOI: 10.1134/s106636221802011x] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Indexed: 09/02/2023]
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