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Munir M, Subechi M, Nurmanjaya A, Prasetya KE, Rindiyantono F, Chairuman, Pratama C, Yanto, Pujiyanto A, Setiawan H, Sarwono DA, Sarmini E, Fara ME, Suseno H. Development of a polystyrene-based microplastic model for bioaccumulation and biodistribution study using radiotracing and nuclear analysis method. Mar Pollut Bull 2024; 201:116283. [PMID: 38522338 DOI: 10.1016/j.marpolbul.2024.116283] [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: 11/19/2023] [Revised: 03/18/2024] [Accepted: 03/19/2024] [Indexed: 03/26/2024]
Abstract
The investigation of micro or nano plastics behavior in the environment is essential to minimize the hazards of such pollutants on humans. While the conventional method requires sophisticated procedures and a lot of animal subjects, the nuclear technique confers a sensitive, accurate, and real-time method using radiolabeled micro or nano plastics as a tracer. In this study, polystyrene sulfonate-based microplastic (PSM) was developed with a size of around 3.6 μm, followed by radiolabeling with iodine-131 (131I) or zinc-65 (65Zn) for microplastic radiotracer model. After a stability study in seawater, phosphate buffer saline (PBS), and human serum albumin (HSA) for fifteen days, PSM-131I remained stable (>90 %), except in HSA (50-60 % after day-9), while PSM-65Zn was unstable (<50 %).
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Affiliation(s)
- Miftakul Munir
- Research Center for Radioisotope Radiopharmaceutical and Biodosimetry Technology, National Research and Innovation Agency, KST BJ Habibie, South Tangerang, Banten 15314, Indonesia.
| | - Moch Subechi
- Research Center for Radioisotope Radiopharmaceutical and Biodosimetry Technology, National Research and Innovation Agency, KST BJ Habibie, South Tangerang, Banten 15314, Indonesia
| | - Ahid Nurmanjaya
- Research Center for Radioisotope Radiopharmaceutical and Biodosimetry Technology, National Research and Innovation Agency, KST BJ Habibie, South Tangerang, Banten 15314, Indonesia
| | - Kukuh Eka Prasetya
- Research Center for Radioisotope Radiopharmaceutical and Biodosimetry Technology, National Research and Innovation Agency, KST BJ Habibie, South Tangerang, Banten 15314, Indonesia
| | - Fernanto Rindiyantono
- Research Center for Radioisotope Radiopharmaceutical and Biodosimetry Technology, National Research and Innovation Agency, KST BJ Habibie, South Tangerang, Banten 15314, Indonesia
| | - Chairuman
- Research Center for Radioisotope Radiopharmaceutical and Biodosimetry Technology, National Research and Innovation Agency, KST BJ Habibie, South Tangerang, Banten 15314, Indonesia
| | - Chaidir Pratama
- Research Center for Radioisotope Radiopharmaceutical and Biodosimetry Technology, National Research and Innovation Agency, KST BJ Habibie, South Tangerang, Banten 15314, Indonesia; Department of Chemical Engineering, Faculty of Engineering, Universitas Gadjah Mada, 55281 Yogyakarta, Indonesia
| | - Yanto
- Directorate of Laboratory Management, Research Facilities, and Science and Technology Park, Deputy for Research and Innovation Infrastructure, National Research and Innovation Agency, KST BJ Habibie, South Tangerang, Banten 15314, Indonesia
| | - Anung Pujiyanto
- Research Center for Radioisotope Radiopharmaceutical and Biodosimetry Technology, National Research and Innovation Agency, KST BJ Habibie, South Tangerang, Banten 15314, Indonesia
| | - Herlan Setiawan
- Research Center for Radioisotope Radiopharmaceutical and Biodosimetry Technology, National Research and Innovation Agency, KST BJ Habibie, South Tangerang, Banten 15314, Indonesia
| | - Daya Agung Sarwono
- Directorate of Nuclear Facility Management, Deputy for Research and Innovation Infrastructure, National Research and Innovation Agency, KST BJ Habibie, South Tangerang, Banten 15314, Indonesia
| | - Endang Sarmini
- Directorate of Nuclear Facility Management, Deputy for Research and Innovation Infrastructure, National Research and Innovation Agency, KST BJ Habibie, South Tangerang, Banten 15314, Indonesia
| | - Meita Eka Fara
- Research Center for Radioisotope Radiopharmaceutical and Biodosimetry Technology, National Research and Innovation Agency, KST BJ Habibie, South Tangerang, Banten 15314, Indonesia; Aquatic Resources Management Master Program, Faculty of Fisheries and Marine Science, Universitas Diponegoro, Jl. Prof. Jacub Rais, Tembalang, Semarang, Jawa Tengah 50275, Indonesia
| | - Heny Suseno
- Research Center for Radioisotope Radiopharmaceutical and Biodosimetry Technology, National Research and Innovation Agency, KST BJ Habibie, South Tangerang, Banten 15314, Indonesia
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Arjuna A, Milborne B, Putra AR, Mulyaningsih TR, Setiawan H, Islam MT, Felfel R, Ahmed I. Development of samarium-doped phosphate glass microspheres for internal radiotheranostic applications. Int J Pharm 2024; 653:123919. [PMID: 38373598 DOI: 10.1016/j.ijpharm.2024.123919] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 01/25/2024] [Accepted: 02/16/2024] [Indexed: 02/21/2024]
Abstract
Internal radiotherapy delivers radioactive sources inside the body, near to or into malignant tumours, which may be particularly effective when malignancies are not responding to external beam radiotherapy. A pure beta emitter, 90Y, is currently used for internal radiotherapy. However, theranostic radionuclide-doped microspheres can be developed by incorporating 153Sm, which emits therapeutic beta and diagnostic gamma energies. This study investigated the production of high concentrations of samarium-content doped phosphate-based glass microspheres. The glass P60 (i.e. 60P2O5-25CaO-15Na2O) was mixed with Sm2O3 at ratios of 75:25 (G75:Sm25), 50:50 (G50:Sm50) and 25:75 (G25:Sm75) and processed via flame spheroidisation. Scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) confirmed the microsphere uniformity with significantly high samarium content up to 44 % in G25:Sm75. Via X-ray diffraction (XRD) analysis, samarium-doped microspheres appeared to be glass-ceramic in nature. Mass-loss, size and pH changes were performed over 28 days, revealing a significant increase in samarium microsphere stability. After 15 min of neutron activation (neutron flux 3.01 × 1013 n.cm-2.s-1), the specific activity of the microspheres (G75:Sm25, G50:Sm50 and G25:Sm75) was 0.28, 0.54 and 0.58 GBq.g-1, respectively. Therefore, the samarium microspheres produced in this study provide great potential for improving internal radiotherapy treatment for liver cancer by avoiding complex procedures and using less microspheres with shorter irradiation time.
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Affiliation(s)
- Andi Arjuna
- Advanced Materials Research Group, Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK; Faculty of Pharmacy, Hasanuddin University, Makassar 90245, Indonesia
| | - Ben Milborne
- Advanced Materials Research Group, Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK
| | - Amal Rezka Putra
- Research Organization for Nuclear Energy (ORTN), National Research and Innovation Agency (BRIN), Tangerang Selatan, Banten 15314, Indonesia
| | - Theresia Rina Mulyaningsih
- Research Organization for Nuclear Energy (ORTN), National Research and Innovation Agency (BRIN), Tangerang Selatan, Banten 15314, Indonesia
| | - Herlan Setiawan
- Research Organization for Nuclear Energy (ORTN), National Research and Innovation Agency (BRIN), Tangerang Selatan, Banten 15314, Indonesia
| | - Md Towhidul Islam
- Advanced Materials Research Group, Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK
| | - Reda Felfel
- Advanced Materials Research Group, Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK
| | - Ifty Ahmed
- Advanced Materials Research Group, Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK.
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Juliyanto S, Dita Pertiwi L, Nurmanjaya A, Pujiyanto A, Setiawan H, Rindiyantono F, Abidin, Fikri A, Putra AR, Forentin AM, Susilo VY, Febrian MB, Ritawidya R, Yulizar Y. Phytosynthesis of gold-198 nanoparticles for a potential therapeutic radio-photothermal agent. Appl Radiat Isot 2024; 204:111141. [PMID: 38071856 DOI: 10.1016/j.apradiso.2023.111141] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 11/22/2023] [Accepted: 12/04/2023] [Indexed: 12/31/2023]
Abstract
We produced spherical gold-198 nanoparticles with an average size of 41 nm, good stability, and high radiochemical purity for a promising single agent of radio-photothermal therapy using Curcuma longa rhizome extract as a reducing and capping agent. The combination of in vitro treatment using gold-198 nanoparticles and irradiation of 980 nm wavelength lasers with a power output of 2 W/cm2 induced hyperthermia temperature and exhibited enhancement of the percentage dead on MDA-MB-123 cancer cells compared to gold-198 nanoparticles alone.
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Affiliation(s)
- Sumandi Juliyanto
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, Research Organization for Nuclear Energy-National Research and Innovation Agency, BRIN, Puspiptek Area, South Tangerang, 15314, Indonesia; Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok, 16424, Indonesia.
| | - Ligwina Dita Pertiwi
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, Research Organization for Nuclear Energy-National Research and Innovation Agency, BRIN, Puspiptek Area, South Tangerang, 15314, Indonesia
| | - Ahid Nurmanjaya
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, Research Organization for Nuclear Energy-National Research and Innovation Agency, BRIN, Puspiptek Area, South Tangerang, 15314, Indonesia
| | - Anung Pujiyanto
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, Research Organization for Nuclear Energy-National Research and Innovation Agency, BRIN, Puspiptek Area, South Tangerang, 15314, Indonesia
| | - Herlan Setiawan
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, Research Organization for Nuclear Energy-National Research and Innovation Agency, BRIN, Puspiptek Area, South Tangerang, 15314, Indonesia
| | - Fernanto Rindiyantono
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, Research Organization for Nuclear Energy-National Research and Innovation Agency, BRIN, Puspiptek Area, South Tangerang, 15314, Indonesia
| | - Abidin
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, Research Organization for Nuclear Energy-National Research and Innovation Agency, BRIN, Puspiptek Area, South Tangerang, 15314, Indonesia
| | - Ahsanal Fikri
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, Research Organization for Nuclear Energy-National Research and Innovation Agency, BRIN, Puspiptek Area, South Tangerang, 15314, Indonesia; Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok, 16424, Indonesia
| | - Amal Rezka Putra
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, Research Organization for Nuclear Energy-National Research and Innovation Agency, BRIN, Puspiptek Area, South Tangerang, 15314, Indonesia
| | - Alfian Mahardika Forentin
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, Research Organization for Nuclear Energy-National Research and Innovation Agency, BRIN, Puspiptek Area, South Tangerang, 15314, Indonesia
| | - Veronika Yulianti Susilo
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, Research Organization for Nuclear Energy-National Research and Innovation Agency, BRIN, Puspiptek Area, South Tangerang, 15314, Indonesia
| | - Muhamad Basit Febrian
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, Research Organization for Nuclear Energy-National Research and Innovation Agency, BRIN, Puspiptek Area, South Tangerang, 15314, Indonesia
| | - Rien Ritawidya
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, Research Organization for Nuclear Energy-National Research and Innovation Agency, BRIN, Puspiptek Area, South Tangerang, 15314, Indonesia
| | - Yoki Yulizar
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok, 16424, Indonesia
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Ritawidya R, Wongso H, Effendi N, Pujiyanto A, Lestari W, Setiawan H, Humani TS. Lutetium-177-Labeled Prostate-Specific Membrane Antigen-617 for Molecular Imaging and Targeted Radioligand Therapy of Prostate Cancer. Adv Pharm Bull 2023; 13:701-711. [PMID: 38022814 PMCID: PMC10676551 DOI: 10.34172/apb.2023.079] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 02/04/2023] [Accepted: 04/24/2023] [Indexed: 12/01/2023] Open
Abstract
Prostate-specific membrane antigen (PSMA) represents a promising target for PSMA-overexpressing diseases, especially prostate cancer-a common type of cancer among men worldwide. In response to the challenges in tackling prostate cancers, several promising PSMA inhibitors from a variety of molecular scaffolds (e.g., phosphorous-, thiol-, and urea-based molecules) have been developed. In addition, PSMA inhibitors bearing macrocyclic chelators have attracted interest due to their favorable pharmacokinetic properties. Recently, conjugating a small PSMA molecule inhibitor-bearing 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) chelator, as exemplified by [177Lu]Lu-PSMA-617 could serve as a molecular imaging probe and targeted radioligand therapy (TRT) of metastatic castration resistant prostate cancer (mCRPC). Hence, studies related to mCRPC have drawn global attention. In this review, the recent development of PSMA ligand-617-labeled with 177Lu for the management of mCRPC is presented. Its molecular mechanism of action, safety, efficacy, and future direction are also described.
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Affiliation(s)
- Rien Ritawidya
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, National Research and Innovation Agency (BRIN), Kawasan Puspiptek, Setu, Tangerang Selatan, 15314 Indonesia
- Research Collaboration Center for Theranostic Radiopharmaceuticals, National Research and Innovation Agency, Jl. Raya Bandung-Sumedang KM 21, Sumedang, 45363, Indonesia
| | - Hendris Wongso
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, National Research and Innovation Agency (BRIN), Kawasan Puspiptek, Setu, Tangerang Selatan, 15314 Indonesia
- Research Collaboration Center for Theranostic Radiopharmaceuticals, National Research and Innovation Agency, Jl. Raya Bandung-Sumedang KM 21, Sumedang, 45363, Indonesia
| | - Nurmaya Effendi
- Faculty of Pharmacy, University of Muslim Indonesia, Kampus II UMI, Jl. Urip Sumoharjo No.225, Panaikang, Panakkukang, Kota, Makassar, Sulawesi Selatan 90231
| | - Anung Pujiyanto
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, National Research and Innovation Agency (BRIN), Kawasan Puspiptek, Setu, Tangerang Selatan, 15314 Indonesia
| | - Wening Lestari
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, National Research and Innovation Agency (BRIN), Kawasan Puspiptek, Setu, Tangerang Selatan, 15314 Indonesia
| | - Herlan Setiawan
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, National Research and Innovation Agency (BRIN), Kawasan Puspiptek, Setu, Tangerang Selatan, 15314 Indonesia
| | - Titis Sekar Humani
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, National Research and Innovation Agency (BRIN), Kawasan Puspiptek, Setu, Tangerang Selatan, 15314 Indonesia
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Munir M, Setiawan H, Awaludin R, Kett VL. Aerosolised micro and nanoparticle: formulation and delivery method for lung imaging. Clin Transl Imaging 2023; 11:33-50. [PMID: 36196096 PMCID: PMC9521863 DOI: 10.1007/s40336-022-00527-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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] [Received: 08/18/2022] [Accepted: 09/26/2022] [Indexed: 02/07/2023]
Abstract
Purpose The application of contrast and tracing agents is essential for lung imaging, as indicated by the wide use in recent decades and the discovery of various new contrast and tracing agents. Different aerosol production and pulmonary administration methods have been developed to improve lung imaging quality. This review details and discusses the ideal characteristics of aerosol administered via pulmonary delivery for lung imaging and the methods for the production and pulmonary administration of dry or liquid aerosol. Methods We explored several databases, including PubMed, Scopus, and Google Scholar, while preparing this review to discover and obtain the abstracts, reports, review articles, and research papers related to aerosol delivery for lung imaging and the formulation and pulmonary delivery method of dry and liquid aerosol. The search terms used were "dry aerosol delivery", "liquid aerosol delivery", "MRI for lung imaging", "CT scan for lung imaging", "SPECT for lung imaging", "PET for lung imaging", "magnetic particle imaging", "dry powder inhalation", "nebuliser", and "pressurised metered-dose inhaler". Results Through the literature review, we found that the critical considerations in aerosol delivery for lung imaging are appropriate lung deposition of inhaled aerosol and avoiding toxicity. The important tracing agent was also found to be Technetium-99m (99mTc), Gallium-68 (68Ga) and superparamagnetic iron oxide nanoparticle (SPION), while the essential contrast agents are gold, iodine, silver gadolinium, iron and manganese-based particles. The pulmonary delivery of such tracing and contrast agents can be performed using dry formulation (graphite ablation, spark ignition and spray dried powder) and liquid aerosol (nebulisation, pressurised metered-dose inhalation and air spray). Conclusion A dual-imaging modality with the combination of different tracing or contrast agents is a future development of aerosolised micro and nanoparticles for lung imaging to improve diagnosis success. Graphical abstract
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Affiliation(s)
- Miftakul Munir
- Research Center for Radioisotope Radiopharmaceutical and Biodosimetry Technology, National Research and Innovation Agency, South Tangerang, 15345 Indonesia
| | - Herlan Setiawan
- Research Center for Radioisotope Radiopharmaceutical and Biodosimetry Technology, National Research and Innovation Agency, South Tangerang, 15345 Indonesia
| | - Rohadi Awaludin
- Research Center for Radioisotope Radiopharmaceutical and Biodosimetry Technology, National Research and Innovation Agency, South Tangerang, 15345 Indonesia
| | - Vicky L. Kett
- School of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast, BT9 7BL UK
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Marlina, Sarmini E, Lestari E, Pratama C, Nurmanjaya A, Sriyono, Abidin, Triyatna F, Kadarisman, Aries A, Febriana S, Setiawan H, Saptiama I, Mujamilah, Patriati A, Awaludin R, Yulizar Y. Surface modification of acid-functionalized mesoporous gamma-alumina for non-fission 99Mo/ 99mTc generator. Appl Radiat Isot 2022; 187:110342. [PMID: 35759956 DOI: 10.1016/j.apradiso.2022.110342] [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: 02/17/2022] [Revised: 06/02/2022] [Accepted: 06/19/2022] [Indexed: 11/25/2022]
Abstract
Mesoporous gamma-alumina (MGA) was synthesized for neutron-activated 99Mo adsorbent. Acid functionalization of the MGA was carried out to enhance the Mo adsorption capacity and the 99Mo breakthrough profile. The acid-treated MGA has a more positive particle charge, rougher surface, smaller particle and pore size, larger surface area, and wider pore distance. The acid-treated MGA has a Mo adsorption capacity of 82.8 ± 6.3 mg Mo/g and resulted in 99mTc eluate with the 99Mo breakthrough at the acceptable level.
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Affiliation(s)
- Marlina
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, National Research and Innovation Agency (BRIN), Puspiptek Area, South Tangerang, 15314, Indonesia; Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Indonesia, Depok, 16424, Indonesia.
| | - E Sarmini
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, National Research and Innovation Agency (BRIN), Puspiptek Area, South Tangerang, 15314, Indonesia
| | - E Lestari
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, National Research and Innovation Agency (BRIN), Puspiptek Area, South Tangerang, 15314, Indonesia
| | - C Pratama
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, National Research and Innovation Agency (BRIN), Puspiptek Area, South Tangerang, 15314, Indonesia
| | - A Nurmanjaya
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, National Research and Innovation Agency (BRIN), Puspiptek Area, South Tangerang, 15314, Indonesia
| | - Sriyono
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, National Research and Innovation Agency (BRIN), Puspiptek Area, South Tangerang, 15314, Indonesia
| | - Abidin
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, National Research and Innovation Agency (BRIN), Puspiptek Area, South Tangerang, 15314, Indonesia
| | - F Triyatna
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, National Research and Innovation Agency (BRIN), Puspiptek Area, South Tangerang, 15314, Indonesia
| | - Kadarisman
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, National Research and Innovation Agency (BRIN), Puspiptek Area, South Tangerang, 15314, Indonesia
| | - A Aries
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, National Research and Innovation Agency (BRIN), Puspiptek Area, South Tangerang, 15314, Indonesia
| | - S Febriana
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, National Research and Innovation Agency (BRIN), Puspiptek Area, South Tangerang, 15314, Indonesia
| | - H Setiawan
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, National Research and Innovation Agency (BRIN), Puspiptek Area, South Tangerang, 15314, Indonesia
| | - I Saptiama
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, National Research and Innovation Agency (BRIN), Puspiptek Area, South Tangerang, 15314, Indonesia
| | - Mujamilah
- Research Center for Radiation Detection and Nuclear Analysis Technology, National Research and Innovation Agency (BRIN), Puspiptek Area, South Tangerang, 15314, Indonesia
| | - A Patriati
- Research Center for Radiation Detection and Nuclear Analysis Technology, National Research and Innovation Agency (BRIN), Puspiptek Area, South Tangerang, 15314, Indonesia
| | - R Awaludin
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, National Research and Innovation Agency (BRIN), Puspiptek Area, South Tangerang, 15314, Indonesia
| | - Y Yulizar
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Indonesia, Depok, 16424, Indonesia
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7
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Barney J, Estee J, Lynch WG, Isobe T, Jhang G, Kurata-Nishimura M, McIntosh AB, Murakami T, Shane R, Tangwancharoen S, Tsang MB, Cerizza G, Kaneko M, Lee JW, Tsang CY, Wang R, Anderson C, Baba H, Chajecki Z, Famiano M, Hodges-Showalter R, Hong B, Kobayashi T, Lasko P, Łukasik J, Nakatsuka N, Olsen R, Otsu H, Pawłowski P, Pelczar K, Sakurai H, Santamaria C, Setiawan H, Taketani A, Winkelbauer JR, Xiao Z, Yennello SJ, Yurkon J, Zhang Y. The SπRIT time projection chamber. Rev Sci Instrum 2021; 92:063302. [PMID: 34243507 DOI: 10.1063/5.0041191] [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] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 05/23/2021] [Indexed: 06/13/2023]
Abstract
The Superconducting Analyzer for MUlti-particles from RAdioIsotope (SAMURAI) Pion-Reconstruction and Ion-Tracker Time Projection Chamber (SπRIT TPC) was designed to enable measurements of heavy ion collisions with the SAMURAI spectrometer at the RIKEN radioactive isotope beam factory and provides constraints on the equation of state of neutron-rich nuclear matter. The SπRIT TPC has a 50.5 cm drift length and an 86.4 × 134.4 cm2 pad plane with 12 096 pads that are equipped with the generic electronics for TPCs. The SπRIT TPC allows for an excellent reconstruction of particles and provides isotopic resolution for pions and other light charged particles across a wide range of energy losses and momenta. The details of the SπRIT TPC are presented, along with discussion of the TPC performance based on cosmic rays and charged particles emitted in heavy ion collisions.
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Affiliation(s)
- J Barney
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
| | - J Estee
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
| | - W G Lynch
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
| | - T Isobe
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - G Jhang
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
| | | | - A B McIntosh
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
| | - T Murakami
- Department of Physics, Kyoto University, Kita-shirakawa, Kyoto 606-8502, Japan
| | - R Shane
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
| | - S Tangwancharoen
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
| | - M B Tsang
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
| | - G Cerizza
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
| | - M Kaneko
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - J W Lee
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
| | - C Y Tsang
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
| | - R Wang
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
| | - C Anderson
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
| | - H Baba
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - Z Chajecki
- Department of Physics, Western Michigan University, Kalamazoo, Michigan 49008, USA
| | - M Famiano
- Department of Physics, Western Michigan University, Kalamazoo, Michigan 49008, USA
| | - R Hodges-Showalter
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
| | - B Hong
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
| | - T Kobayashi
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - P Lasko
- Institute of Nuclear Physics PAN, ul. Radzikowskiego 152, 31-342 Kraków, Poland
| | - J Łukasik
- Institute of Nuclear Physics PAN, ul. Radzikowskiego 152, 31-342 Kraków, Poland
| | - N Nakatsuka
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - R Olsen
- Gran Sasso National Laboratory-INFN, Via G. Acitelli 22, 67100 Assergi, L'Aquila AQ, Italy
| | - H Otsu
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - P Pawłowski
- Institute of Nuclear Physics PAN, ul. Radzikowskiego 152, 31-342 Kraków, Poland
| | - K Pelczar
- Gran Sasso National Laboratory-INFN, Via G. Acitelli 22, 67100 Assergi, L'Aquila AQ, Italy
| | - H Sakurai
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - C Santamaria
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
| | - H Setiawan
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
| | - A Taketani
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - J R Winkelbauer
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
| | - Z Xiao
- Department of Physics, Tsinghua University, Beijing 100084, People's Republic of China
| | - S J Yennello
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
| | - J Yurkon
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
| | - Y Zhang
- Department of Physics, Tsinghua University, Beijing 100084, People's Republic of China
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8
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Wilopo W, Prakasa Eka Putra D, Setiawan H, D Setyawan K. Impact assessment of apartment building foundation to Terban spring discharge, Yogyakarta City. J Degrade Min Land Manage 2020. [DOI: 10.15243/jdmlm.2020.073.2111] [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: 11/13/2022] Open
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9
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Setiawan H, Jingga ME, Saragih HT. The effect of cashew leaf extract on small intestine morphology and growth performance of Jawa Super chicken. Vet World 2018; 11:1047-1054. [PMID: 30250362 PMCID: PMC6141296 DOI: 10.14202/vetworld.2018.1047-1054] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 06/22/2018] [Indexed: 11/16/2022] Open
Abstract
Aim: This research aimed to study the effect of leaf extract of cashew as a bioactive compound in feed on the morphology of the small intestine in Jawa Super chicken (Gallus gallus domesticus). Materials and Methods: This study used 72 1-day-old Jawa Super chicks reared for a further 16 days. We used a randomized complete design, in which basal feed was supplemented with ethanolic extract of cashew leaves at 0 g/kg feed (control), 1.25 g/kg feed (P1), 2.5 g/kg feed (P2), 5 g/kg feed (P3), 10 g/kg feed (P4), and 20 g/kg feed (P5). Parameters observed included growth performance, chicken morphometry, and morphology of the small intestine, comprising the length and width of the villi, the depth of the crypt, and the number and size of goblet cells in the duodenum, jejunum, and ileum. Data analysis was conducted using one-way ANOVA followed by Duncan’s test, with significance defined as p<0.05. Results: Ethanolic extract of cashew leaf significantly increased body weight, feed efficiency, body morphometry, villus length, crypt depth, number of goblet cells, and extent of goblet cell area of the small intestine at 16 days. The morphological results from the small intestine showed that P4 and P5 were significantly better than control. Conclusions: Cashew leaf ethanolic extract mixed with 10 g/kg basal feed is effective as a natural feed supplement for Jawa Super chickens.
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Affiliation(s)
- H Setiawan
- Laboratory of Biology, Faculty of Mathematics and Science, Universitas Ahmad Dahlan, Yogyakarta, 55166, Indonesia
| | - M E Jingga
- Laboratory of Animal Development Structure, Faculty of Biology, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia
| | - H T Saragih
- Laboratory of Animal Development Structure, Faculty of Biology, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia
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Kadarisman K, Sriyono S, Abidin A, Lestari E, Marlina M, Saptiama I, Setiawan H. Synthesis of Nano-α-Al2O3 for 99Mo Adsorbent. Atom Indo 2018. [DOI: 10.17146/aij.2018.849] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Petrus HBTM, Wanta KC, Setiawan H, Perdana I, Astuti W. Effect of pulp density and particle size on indirect bioleaching of Pomalaa nickel laterite using metabolic citric acid. ACTA ACUST UNITED AC 2018. [DOI: 10.1088/1757-899x/285/1/012004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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12
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Marlina M, Sarmini E, Herlina H, Sriyono S, Saptiama I, Setiawan H, Kadarisman K. Preparation and Characterization of Zirconia Nanomaterial as a Molybdenum-99 Adsorbent. Atom Indo 2017. [DOI: 10.17146/aij.2017.587] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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13
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Saptiama I, Marlina M, Sarmini E, Herlina H, Sriyono S, Abidin A, Setiawan H, Kadarisman K, Lubis H, Mutalib A. The Use of Sodium Hypochlorite Solution for (n,γ)<sup>99</sup>Mo/<sup>99m</sup>Tc Generator Based on Zirconium-Based Material (ZBM). Atom Indo 2015. [DOI: 10.17146/aij.2015.384] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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14
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Sauriasari R, Andrajati R, Saputri DA, Muris RU, Manfaatun A, Amanda OF, Setiawan H, Sakano N, Wang DH, Ogino K. Marker of lipid peroxidation related to diabetic nephropathy in Indonesian type 2 diabetes mellitus patients. Diabetes Res Clin Pract 2015; 108:193-200. [PMID: 25726335 DOI: 10.1016/j.diabres.2014.12.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Revised: 10/15/2014] [Accepted: 12/26/2014] [Indexed: 11/18/2022]
Abstract
OBJECTIVE Even though diabetes patients exhibit an increased oxidative stress, its correlation with diabetic nephropathy is not fully understood. The purpose of this study was to determine whether lipid peroxidation marker correlates well with eGFR and UACR in type 2 diabetes mellitus patients. METHODS We collected urine and serum samples of Indonesian type 2 diabetes mellitus outpatients with normo- and microalbuminuria at a Local Government Clinic (from ages: 39-74 years). Urinary 8-iso-PGF2α was measured by ELISA, the serum malondialdehyde by TBARS assay, and urinary albumin by BCG albumin assay. eGFR was calculated using the corrected-Cockcroft-Gault (CG), MDRD, and CKD-EPI equation. Other necessary data were obtained through questionnaires. RESULTS The results showed that the increasing level of malondialdehyde was mildly correlated with the decline in eGFR (MDRD). In contrary, there was a significant positive correlation between 8-iso-PGF2α concentration and eGFR based on the corrected-CG, MDRD study, and CKD-EPI equation (r=0.457, p<0.001; r=0.424, p<0.001; r=0.443, p<0.001). This relationship still persisted in the normoalbuminuric subjects (n=43) (r=0.491, p=0.001; r=0.461, p=0.002; r=0.455, p=0.002). The multivariate analysis showed that 8-iso-PGF2α together with fasting plasma glucose was the most predictive factor for the high 2-quantile eGFR (adjusted OR 1.001, (95% CI, 1.000-1.001)). However, there was no significant correlation between UACR with malondialdehyde (r=0.268, p=0.050) and 8-iso-PGF2α(r=-0.030, p=0.808). UACR itself was inversely correlated with eGFR based on the corrected-CG, the MDRD, and CKD-EPI (r=-0.232, p<0.05; r=-0.228, p<0.05; r=-0.232, p<0.05). CONCLUSIONS Increased 8-iso-PGF2α and malondialdehyde in type 2 diabetes mellitus patients may play a role in the pathophysiologic significance of diabetic nephropathy, even while considering the effect of potential confounders.
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Affiliation(s)
- R Sauriasari
- Faculty of Pharmacy, Universitas Indonesia, Depok, Indonesia.
| | - R Andrajati
- Faculty of Pharmacy, Universitas Indonesia, Depok, Indonesia
| | - D A Saputri
- Faculty of Pharmacy, Universitas Indonesia, Depok, Indonesia
| | - R U Muris
- Faculty of Pharmacy, Universitas Indonesia, Depok, Indonesia
| | - A Manfaatun
- Faculty of Pharmacy, Universitas Indonesia, Depok, Indonesia
| | - O F Amanda
- Faculty of Pharmacy, Universitas Indonesia, Depok, Indonesia
| | - H Setiawan
- Department of Public Health, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Japan
| | - N Sakano
- Department of Gerontology Research, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Japan
| | - D H Wang
- Department of Environmental Biochemistry, Okayama University of Science, Japan
| | - K Ogino
- Department of Public Health, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Japan
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15
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Ogino K, Wang DH, Kubo M, Obase Y, Setiawan H, Yan F, Takahashi H, Zhang R, Tsukiyama Y, Yoshida J, Zou Y. Association of serum arginase I with L-arginine, 3-nitrotyrosine, and exhaled nitric oxide in healthy Japanese workers. Free Radic Res 2013; 48:137-45. [PMID: 24060156 DOI: 10.3109/10715762.2013.842979] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The associations of serum arginase I with serum L-arginine, serum 3-nitrotyrosine, and fractional exhaled nitric oxide (FENO) were evaluated cross-sectionally in healthy Japanese workers. The serum median (minimum-maximum) levels of arginase I, 3-nitrotyrosine, and FENO in healthy people (n = 130) were 14.6 (0.94-108.1) ng/mL, 81.0 (0.27-298.6) pmol/mg protein, and 14.0 (5.0-110.0) parts per billion, respectively. Significant correlations of arginase I with FENO, L-arginine, 3-nitrotyrosine, and percent predicted forced expiratory volume in 1 s (FEV1 (% predicted)) were observed, and correlations of FENO with immunoglobulin E (IgE), NOx, arginase I, and sex and allergy were also observed. By multiple regression analysis, arginase I showed positive associations with FENO and 3-nitrotyrosine, and a negative association with L-arginine; and FENO showed positive associations with IgE and NO2(-) + NO3(-) (NOx), and a negative association with L-arginine, as well as an association with sex. Moreover, logistic regression analysis showed linear inverse associations of arginase I and 3-nitrotyrosine with L-arginine, and showed linear positive associations of FENO with IgE and NOx. It was concluded that serum arginase I might regulate serum L-arginine and 3-nitrotyrosine via L-arginine, and that IgE or NOx might regulate FENO in a healthy Japanese population.
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Affiliation(s)
- K Ogino
- Department of Public Health, Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences , Okayama , Japan
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Akazawa Y, Kubo M, Zhang R, Matsumoto K, Yan F, Setiawan H, Takahashi H, Fujikura Y, Ogino K. Inhibition of arginase ameliorates experimental ulcerative colitis in mice. Free Radic Res 2013; 47:137-45. [PMID: 23215832 DOI: 10.3109/10715762.2012.756980] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Nitric oxide (NO) is produced from the conversion of L-arginine by NO synthase (NOS) and regulates a variety of processes in the gastrointestinal tract. Considering the increased activity of arginase in colitis tissue, it is speculated that arginase could inhibit NO synthesis by competing for the same L-arginine substrate, resulting in the exacerbation of colitis. We examined the role of arginase and its relationship to NO metabolism in dextran sulfate sodium (DSS)-induced colitis. Experimental colitis was induced in mice by administration of 2.5% DSS in drinking water for 8 days. Treatment for arginase inhibition was done by once daily intraperitoneal injection of N(ω)-hydroxy-nor- arginine (nor-NOHA). On day 8, we evaluated clinical parameters (body weight, disease activity index, and colon length), histological features, the activity and expression of arginase, L-arginine content, the expression of NO synthase (NOS), and the concentration of NO end-product (NOx: nitrite + nitrate). Administration of nor-NOHA improved the worsened clinical parameters and histological features in DSS-induced colitis. Treatment with nor-NOHA attenuated the increased activity of arginase, upregulation of arginase Ι at both mRNA and protein levels, and decreased the content of L-arginine in colonic tissue in the DSS-treated mice. Conversely, despite the decreased expression of NOS2 mRNA, the decreased concentration of NOx in colonic tissues was restored to almost normal levels. The consumption of L-arginine by arginase could lead to decreased production of NO from NOS, contributing to the pathogenesis of the colonic inflammation; thus, arginase inhibition might be effective for improving colitis.
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Affiliation(s)
- Y Akazawa
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences , Okayama , Japan
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17
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Brown CE, Dunn DH, Harrell R, Setiawan H, Cunningham FG. Computed tomography for evaluation of puerperal infections. Surg Gynecol Obstet 1991; 172:285-9. [PMID: 2006453] [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] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Pelvic computed tomography was used to evaluate 74 women with persistent puerperal infection. There was at least one abnormal roentgenographic finding in 57, and these are correlated with clinical and surgical findings. In 16 women, a palpable pelvic mass was seen on tomography, however, masses not appreciated clinically were visualized in another 29 women, and in five, a clinically palpable mass was not visualized by tomography. In 12 women who had a normal pelvic examination, septic pelvic thrombophlebitis was diagnosed by tomography. Over-all, there was poor correlation with roentgenographic findings and uterine incisional necrosis and dehiscence. We conclude that pelvic tomography is useful to evaluate some women with persistent puerperal infection, but that these studies must be correlated with clinical findings.
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Affiliation(s)
- C E Brown
- Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas 75235
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Abstract
Stab wounds to the back present a diagnostic problem, since missed occult abdominal injuries can lead to serious morbidity. In a prospective study of 205 patients, the authors evaluated the usefulness of abdominal computed tomography (CT) in assessment of low-velocity penetrating injury to the back. CT results were classified into three groups. Category 1 included injuries limited to superficial subcutaneous tissue (n = 174); category 2, injuries to the retroperitoneal compartment (n = 18); and category 3, injuries within the peritoneal cavity (n = 13). Fifty patients underwent surgery, including 30 with category 1 injuries, nine with category 2 injuries, and eleven with category 3 injuries. CT categorization of injury, compared with surgical findings in these 50 patients, had a sensitivity of 85% and specificity of 93%. The CT interpretation was considered correct if it demonstrated peritoneal penetration or retroperitoneal injury potentially requiring surgery. The remaining 155 patients were managed nonoperatively, and none had late complications. Abdominal CT is a reliable diagnostic tool in the evaluation of penetrating injury to the back.
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Affiliation(s)
- T B Fletcher
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas 75235
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Erdman WA, Breslau NA, Weinreb JC, Weatherall P, Setiawan H, Harrell R, Snyder W. Noninvasive localization of parathyroid adenomas: a comparison of X-ray computerized tomography, ultrasound, scintigraphy and MRI. Magn Reson Imaging 1989; 7:187-94. [PMID: 2541298 DOI: 10.1016/0730-725x(89)90703-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Thirty-two (32) patients with primary hyperparathyroidism (17 with prior localization surgery, 15 without) were studied by a combination of computed tomography (CT), ultrasound (US), nuclear medicine (NM), and magnetic resonance imaging (MRI) for parathyroid adenoma localization. The sensitivity and true-positive ratio of each imaging technique and various combinations of techniques were evaluated. Of the 28 proven parathyroid adenomas (27 by surgery, 1 by digital subtraction angiography), 24 were imaged by two techniques, 19 by three techniques, and 10 by all four imaging techniques. The sensitivities were NM (65%), CT (76%), US (77%), and MRI (81%). The differences between true-positive ratios of 82%, 64%, 71%, and 77%, respectively, were not statistically significant. If multiple techniques were considered as a single test (i.e., a positive localization requires two or more tests to be positive at the same location), then sensitivity for a two-study combination was 79% and true-positive ratio 86%. Three techniques showed a sensitivity of 63% and a true-positive ratio of 92%, four modalities 40% and 100%, respectively. There was no significant difference in the various combinations of techniques employed (e.g., CT and US, US and MR, NM and MR, etc.). Thus, there appears to be an advantage in performing multiple techniques (regardless of which combination is selected) until two tests are positive at the same location.
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Affiliation(s)
- W A Erdman
- Department of Radiology, University of Texas, Southwestern Medical Center at Dallas
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Abstract
Sonographic and radiographic fidings were reviewed in 27 patients with hepatic amebiasis. Sonography usually demonstrated nonspecific, peripheral, hypoechoic lesions. The only diagnostic sonographic appearance was a combination of a hypoechoic lesion and diaphragmatic disruption, which was found in four patients. About 50% of the patients had accompanying radiographic abnormalities that were nondiagnostic. These included elvation of the right hemidiaphragm, basilar pulmonary infiltrates, and pleural effusions. Liver abscesses occasionally grew during the first 2 weeks of treatment even though the patients were responding well to medical therapy. Lesions frequently became more anechoic and better defined on follow-up examinations. Successfully treated abscesses may calcify rather than diminish.
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