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Han YH, Jeong HJ, Lee SY, Lim ST. Incidentally detected follicular thyroid carcinoma mimicking parathyroid adenoma on Tc-99m MIBI scan: A case report. Medicine (Baltimore) 2024; 103:e38107. [PMID: 38701245 PMCID: PMC11062725 DOI: 10.1097/md.0000000000038107] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 04/12/2024] [Indexed: 05/05/2024] Open
Abstract
RATIONALE Primary hyperparathyroidism, though relatively prevalent among endocrine disorders, affecting 1% of the general population, often presents diagnostic challenges. Given its potential to precipitate severe complications including nephrolithiasis and fractures, timely diagnosis, and effective management are crucial. PATIENT CONCERNS A 38-year-old woman with hypercalcemia was referred to the Department of Nuclear Medicine for a Tc-99m MIBI scan. DIAGNOSES Tc-99m MIBI scan showed focal increased uptake in the left thyroid gland area, initially suggesting a parathyroid adenoma. Further examination using SPECT/CT revealed a nodular lesion within the left thyroid gland showing high Tc-99m MIBI uptake. INTERVENTIONS Left thyroid lumpectomy confirmed the lesion as follicular thyroid carcinoma. On the second Tc-99m MIBI scan conducted after total thyroidectomy, a parathyroid adenoma was eventually detected in the right lower area, enabling the subsequent appropriate treatment, a right lower parathyroidectomy. OUTCOMES Thirteen days after the parathyroidectomy, serum levels of total calcium and parathyroid hormone returned to normal. Furthermore, bone mineral density evaluated using DEXA remained within the expected range for her age even after 14 months. LESSONS When interpreting the Tc-99m MIBI scan, it is essential to keep in mind that various tumors rich in mitochondria, such as thyroid carcinoma, could show a high uptake of Tc-99m MIBI.
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Affiliation(s)
- Yeon-Hee Han
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Cyclotron Research Center, Molecular Imaging and Therapeutic Medicine Research Center, Jeonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, Republic of Korea
| | - Hwan-Jeong Jeong
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Cyclotron Research Center, Molecular Imaging and Therapeutic Medicine Research Center, Jeonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, Republic of Korea
| | - Sun Young Lee
- Department of Radiation Oncology, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, Republic of Korea
| | - Seok Tae Lim
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Cyclotron Research Center, Molecular Imaging and Therapeutic Medicine Research Center, Jeonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, Republic of Korea
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Oh PS, Han YH, Lim S, Vetha BSS, Jeong HJ. Antiviral and synergistic effects of photo-energy with acyclovir on herpes simplex virus type 1 infection. Virology 2024; 595:110063. [PMID: 38564935 DOI: 10.1016/j.virol.2024.110063] [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: 10/29/2023] [Revised: 02/23/2024] [Accepted: 03/14/2024] [Indexed: 04/04/2024]
Abstract
This experimental study aimed to evaluate the antiviral and synergistic effects of photoenergy irradiation on human herpes simplex virus type I (HSV-1) infection. We assessed viral replication, plaque formation, and relevant viral gene expression to examine the antiviral and synergistic effects of blue light (BL) with acyclovir treatment. Our results showed that daily BL (10 J/cm2) irradiation inhibited plaque-forming ability and decreased viral copy numbers in HSV-1-infected monkey kidney epithelial Vero cells and primary human oral keratinocyte (HOK) cells. Combined treatment with the antiviral agent acyclovir and BL irradiation increased anti-viral activity, reducing viral titers and copy numbers. In particular, accumulated BL irradiation suppressed characteristic viral genes including UL19 and US6, and viral DNA replication-essential genes including UL9, UL30, UL42, and UL52 in HOK cells. Our results suggest that BL irradiation has anti-viral and synergistic properties, making it a promising therapeutic candidate for suppressing viral infections in clinical trials.
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Affiliation(s)
- Phil-Sun Oh
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Research Institute of Clinical Medicine of Jeonbuk National University, Biomedical Research Institute of Jeonbuk National University Medical School and Hospital, Jeonju, Republic of Korea
| | - Yeon-Hee Han
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Research Institute of Clinical Medicine of Jeonbuk National University, Biomedical Research Institute of Jeonbuk National University Medical School and Hospital, Jeonju, Republic of Korea
| | - SeokTae Lim
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Research Institute of Clinical Medicine of Jeonbuk National University, Biomedical Research Institute of Jeonbuk National University Medical School and Hospital, Jeonju, Republic of Korea
| | - Berwin Singh Swami Vetha
- Department of Foundational Sciences and Research, School of Dental Medicine, East Carolina University, 1851 MacGregor Downs Road, MS 701, Greenville, NC 27834, USA
| | - Hwan-Jeong Jeong
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Research Institute of Clinical Medicine of Jeonbuk National University, Biomedical Research Institute of Jeonbuk National University Medical School and Hospital, Jeonju, Republic of Korea.
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Wang SI, Kim M, Han YH. A Case of Pediatric Leg-Length Difference After Tibial Fracture Predicted by Bone SPECT/CT. Nucl Med Mol Imaging 2024; 58:35-39. [PMID: 38261883 PMCID: PMC10796858 DOI: 10.1007/s13139-023-00820-7] [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: 07/07/2023] [Revised: 07/31/2023] [Accepted: 08/04/2023] [Indexed: 01/25/2024] Open
Abstract
An 11-year-old boy underwent a bone single-photon emission computed tomography/computed tomography (SPECT/CT) scan 3 months after fracturing his right tibia. The standardized uptake values (SUVs) of the growth plates in his right tibia were higher compared to those in the left tibia. One year later, the right leg was 10 mm longer than the left leg with higher SUVs in the right tibial growth plates. After performing epiphysiodesis at the right proximal tibia, the leg-length difference (LLD) decreased from 17 to 12 mm with the decrease of SUVs in the growth plates of the right tibia. This case emphasizes the potential of quantitative analysis using bone SPECT/CT in predicting LLD and determining the necessity of length equalization surgery in pediatric lower limb fractures.
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Affiliation(s)
- Sung Il Wang
- Department of Orthopaedics Surgery, Jeonbuk National University Medical School, Research Institute for Endocrine Sciences and Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Jeonbuk Republic of Korea
| | - MinJeong Kim
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Cyclotron Research Center, Molecular Imaging and Therapeutic Medicine Research Center, Jeonbuk National University Medical School and Hospital, 20, Geonjiro, Jeonju, Jeonbuk Republic of Korea
| | - Yeon-Hee Han
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Cyclotron Research Center, Molecular Imaging and Therapeutic Medicine Research Center, Jeonbuk National University Medical School and Hospital, 20, Geonjiro, Jeonju, Jeonbuk Republic of Korea
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Han YH, Jeong HJ, Lim ST. Serial Migration of Iatrogenic Microembolus on 18 F-FDG PET/CT Images. Clin Nucl Med 2024; 49:171-172. [PMID: 38109048 DOI: 10.1097/rlu.0000000000005020] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
ABSTRACT A 51-year-old woman who had a history of partial nephrectomy underwent an 18 F-FDG PET/CT image for a routine health checkup. Focal intense FDG avidity without any anatomical correlation on CT was detected in the lung. On the delayed image after 20 minutes, the focal activity migrated to a more peripheral portion. An iatrogenic microembolus is a rare but crucial false-positive finding that nuclear physicians should be aware of. Our case emphasizes the importance of meticulous FDG injection and cautious interpretation. In addition, delayed PET/CT imaging through wet reading can aid in diagnosing and help prevent unnecessary investigations.
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Affiliation(s)
- Yeon-Hee Han
- From the Department of Nuclear Medicine, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Cyclotron Research Center, Molecular Imaging and Therapeutic Medicine Research Center, Jeonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, Republic of Korea
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Han YH, Lee CS. FDG PET/CT in Hantavirus Hemorrhagic Fever With Renal Syndrome. Clin Nucl Med 2023; 48:1073-1075. [PMID: 37934706 PMCID: PMC10662585 DOI: 10.1097/rlu.0000000000004915] [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: 05/08/2023] [Revised: 08/21/2023] [Indexed: 11/09/2023]
Abstract
ABSTRACT A 58-year-old man with fever, myalgia, and dysuria was admitted to the hospital. Because of prolonged fever, FDG PET/CT was performed. Surprisingly, bilateral kidneys were rapidly enlarged for 5 days with the renal parenchyma showing intense hypermetabolism. FDG PET/CT demonstrated physiology of Hantavirus invading kidneys and causing nephritis. This case illustrates that FDG PET/CT could be the choice of image modality for diagnosis and treatment evaluation of patients suspected of hemorrhagic fever with renal syndrome. To the best of our knowledge, this is the first report of FDG PET/CT image for a patient with hemorrhagic fever with renal syndrome.
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Affiliation(s)
| | - Chang-Seop Lee
- Internal Medicine, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, Republic of Korea
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Kim M, Chae KJ, Kim JH, Han YH. Giant Fibrovascular Polyp Mimicking Esophageal Malignancy on 18 F-FDG PET/CT. Clin Nucl Med 2023; 48:1091-1092. [PMID: 37883220 DOI: 10.1097/rlu.0000000000004907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
ABSTRACT A 52-year-old man presented with continuous dull pain from the throat to the epigastric region with dysphagia. Initial endoscopy misdiagnosed a subepithelial tumor causing external compression of the esophagus. A CT scan visualized a 14.0 × 4.0-cm pedunculated mass inside the esophagus. Subsequent 18 F-FDG PET/CT identified an intense FDG-avid area in the mass, which strongly suggested esophageal cancer. Total mass excision was performed, and fibrovascular polyp with chronic ulcerative inflammation was finally confirmed on histologic examination.
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Wang SI, Jeong HJ, Lim ST, Han YH. Prediction of leg-length discrepancy in pediatric femoral shaft fracture using bone SPECT/CT: A case report. Medicine (Baltimore) 2023; 102:e35860. [PMID: 37933061 PMCID: PMC10627618 DOI: 10.1097/md.0000000000035860] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 10/09/2023] [Indexed: 11/08/2023] Open
Abstract
RATIONALE Children's bones are in the process of growing in both length and width. Therefore, evaluating whether fractures affect the growth plate or not is very crucial. However, even in cases of lower limb fractures where the growth plate remains unaffected, overgrowth or shortening of the affected limb are encountered. PATIENT CONCERNS An 11-year-old boy was admitted to the emergency department after a passenger car accident. DIAGNOSES A comminuted fracture of the right femoral shaft was diagnosed by X-ray image. INTERVENTIONS Closed reduction and internal fixation were performed using intramedullary titanium elastic nails. Six months after the operation, bone union was achieved and the nails were removed. OUTCOMES Nine months after nail removal, the right leg was unexpectedly noticed 5 mm shorter than the left one. On the initial and follow-up bone single-photon emission computed tomography/computed tomography images with a 9-month interval, radioactivity of growth plate in the right proximal femur was much lower than that of the left femur, suggesting a further increasing of leg-length discrepancy (LLD) in the future. As we expected, LLD had progressively increased up to 20 mm. Epiphysiodesis was finally decided for the left distal femur. Twenty-two months after the length equalization operation, LLD decreased to 5 mm. LESSONS This case emphasizes that quantitative analysis of growth plate activity using bone single-photon emission computed tomography/computed tomography could predict LLD and help us decide when and which limb should be operated on for pediatric patients with lower limb fractures.
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Affiliation(s)
- Sung Il Wang
- Department of Orthopaedics Surgery, Jeonbuk National University Medical School, Research Institute for Endocrine Sciences and Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Jeonbuk, South Korea
| | - Hwan-Jeong Jeong
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jounbuk National University Medical School and Hospital, Jeonju, Jeonbuk, South Korea
| | - Seok Tae Lim
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jounbuk National University Medical School and Hospital, Jeonju, Jeonbuk, South Korea
| | - Yeon-Hee Han
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jounbuk National University Medical School and Hospital, Jeonju, Jeonbuk, South Korea
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Han YH, Peng JB, Gu YC, Quan NB, Yang DY, Li XD. [Analysis of factors influencing lung function in patients with pneumoconiosis]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:663-667. [PMID: 37805425 DOI: 10.3760/cma.j.cn121094-20220509-00244] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
Abstract
Objective: To analyze the influencing factors of lung function in pneumoconiosis patients, and to provide reference for clinical treatment. Methods: From July 2020 to December 2020, a questionnaire survey was conducted on pneumoconiosis patients in the jurisdiction by using the "Guangdong Province Occupational Disease Prevention and Control Institute" questionnaire, and the relevant items of patients were examined. The rate of counting data is expressed, and the measurement data is expressed by mean and standard deviation. Chi-square test was used for comparison between groups, trend chi-square test was used for trend analysis of ordered classified data. Multivariate analysis was carried out with binary logistic regression model. Results: A total of 1409 pneumoconiosis patients were enrolled. The abnormal rate of lung function in pneumoconiosis patients was 68.77%. The results of trend Chi-square test showed that the abnormal rate of lung function increased with the age of exposure to dust in different age groups (Chi Sqnare Trend=64.12、8.49、24.20, P<0.05) . In univariate analysis, there were statistical significance in different dust exposure age, working age, pneumoconiosis stage, complications and occupational pneumoconiosis diseases (P<0.05) . Multiple logistic regression results showed that age of exposure to dust, years of service, stage of pneumoconiosis and complications were the main influencing factors of lung function in pneumoconiosis patients (P<0.05) . Compared with patients aged 0-30 years, patients aged 50-70 years and older had a higher rate of abnormal lung function (OR=2.16, 95%CI: 1.12~4.16; OR=4.82, 95%CI: 2.05~11.35, all P<0.05) ; Compared with patients with 0~20 years of service, patients with 20~30 years of service and more than 30 years of service had a higher rate of abnormal lung function (OR=1.58, 95%CI: 1.10~2.25; OR=1.63, 95%CI: 1.28~2.40, P<0.05) ; Compared with stage Ⅰ patients, Stage Ⅱ and Stage Ⅲ patients had a higher rate of abnormal lung function (OR=1.62, 95%CI: 1.20~2.17; OR=2.23, 95%CI: 1.40~3.55, all P<0.05) ; Compared with patients without comorbidities, patients with comorbidities had a higher rate of abnormal lung function (OR=1.68, 95%CI: 1.20~2.38, P<0.05) . Conclusion: The factors such as age of exposure to dust, working age, stage of pneumoconiosis and complications may be the influencing factors of lung function in pneumoconiosis patients.
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Affiliation(s)
- Y H Han
- Guangdong Provincial Institute of Occupational Disease Prevention and Control, Guangdong Occupational Health Engineering Technology Research Center, Guangdong Provincial Key Laboratory of Occupational Disease Prevention and Control, Guangzhou 510300, China School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - J B Peng
- Guangdong Provincial Institute of Occupational Disease Prevention and Control, Guangdong Occupational Health Engineering Technology Research Center, Guangdong Provincial Key Laboratory of Occupational Disease Prevention and Control, Guangzhou 510300, China
| | - Y C Gu
- Guangdong Provincial Institute of Occupational Disease Prevention and Control, Guangdong Occupational Health Engineering Technology Research Center, Guangdong Provincial Key Laboratory of Occupational Disease Prevention and Control, Guangzhou 510300, China
| | - N B Quan
- Guangdong Provincial Institute of Occupational Disease Prevention and Control, Guangdong Occupational Health Engineering Technology Research Center, Guangdong Provincial Key Laboratory of Occupational Disease Prevention and Control, Guangzhou 510300, China
| | - D Y Yang
- Guangdong Provincial Institute of Occupational Disease Prevention and Control, Guangdong Occupational Health Engineering Technology Research Center, Guangdong Provincial Key Laboratory of Occupational Disease Prevention and Control, Guangzhou 510300, China
| | - X D Li
- Guangdong Provincial Institute of Occupational Disease Prevention and Control, Guangdong Occupational Health Engineering Technology Research Center, Guangdong Provincial Key Laboratory of Occupational Disease Prevention and Control, Guangzhou 510300, China
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Oh PS, Han YH, Lim S, Jeong HJ. Corrigendum to "Blue light irradiation exerts anti-viral and anti-inflammatory properties against herpes simplex virus type 1 infection" [Journal of Photochemistry and Photobiology B: Biology Volume 239 (2023) 112632]. J Photochem Photobiol B 2023; 242:112684. [PMID: 36906983 PMCID: PMC10004553 DOI: 10.1016/j.jphotobiol.2023.112684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Affiliation(s)
- Phil-Sun Oh
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Research Institute of Clinical Medicine of Jeonbuk National University, Biomedical Research Institute of Jeonbuk National University Medical School and Hospital, Jeonju 54907, Republic of Korea
| | - Yeon-Hee Han
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Research Institute of Clinical Medicine of Jeonbuk National University, Biomedical Research Institute of Jeonbuk National University Medical School and Hospital, Jeonju 54907, Republic of Korea
| | - SeokTae Lim
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Research Institute of Clinical Medicine of Jeonbuk National University, Biomedical Research Institute of Jeonbuk National University Medical School and Hospital, Jeonju 54907, Republic of Korea
| | - Hwan-Jeong Jeong
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Research Institute of Clinical Medicine of Jeonbuk National University, Biomedical Research Institute of Jeonbuk National University Medical School and Hospital, Jeonju 54907, Republic of Korea.
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Oh PS, Han YH, Lim S, Jeong HJ. Blue light irradiation exerts anti-viral and anti-inflammatory properties against herpes simplex virus type 1 infection. J Photochem Photobiol B 2023; 239:112632. [PMID: 36608399 PMCID: PMC9771843 DOI: 10.1016/j.jphotobiol.2022.112632] [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] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 12/05/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022]
Abstract
The aim of this study was to investigate the antiviral and anti-inflammatory functions of blue light (BL) in cutaneous viral infections. Previously, we examined the photo-biogoverning role of 450 nm BL in SARS-CoV-2-infected cells, which showed that photo-energy could inhibit viral activation depending on the number of photons. However, the communication network between photo-energy irradiation and immune cells involved in viral infections has not been clarified. We verified viral activation, inflammatory responses, and relevant downstream cascades caused by human simplex virus type I (HSV-1) after BL irradiation. To examine the antiviral effect of BL, we further tested whether BL could disturb viral absorption or entry into host cells. The results showed that BL irradiation, but not green light (GL) exposure, specifically decreased plaque-forming activity and viral copy numbers in HSV-1-infected cells. Accumulated BL irradiation inhibited the localization of viral proteins and the RNA expression of characteristic viral genes such as UL19, UL27, and US6, thus exerting to an anti-viral effect. The results also showed that BL exposure during viral absorption interfered with viral entry or destroyed the virus, as assessed by plaque formation and quantitative PCR assays. The levels of the pro-inflammatory mediators interleukin (IL)-18 and IL-1β in M1-polarized macrophages were increased by HSV-1 infection. However, these increases were attenuated by BL irradiation. Importantly, BL irradiation decreased cGAS and STING expression, as well as downstream NF-κB p65, in M1-polarized HSV-1-infected macrophages, demonstrating anti-viral and anti-inflammatory properties. These findings suggest that BL could serve as an anti-viral and anti-inflammatory therapeutic candidate to treat HSV-1 infections.
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Affiliation(s)
- Phil-Sun Oh
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Research Institute of Clinical Medicine of Jeonbuk National University, Biomedical Research Institute of Jeonbuk National University Medical School and Hospital, Jeonju 54907, Republic of Korea
| | - Yeon-Hee Han
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Research Institute of Clinical Medicine of Jeonbuk National University, Biomedical Research Institute of Jeonbuk National University Medical School and Hospital, Jeonju 54907, Republic of Korea
| | - SeokTae Lim
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Research Institute of Clinical Medicine of Jeonbuk National University, Biomedical Research Institute of Jeonbuk National University Medical School and Hospital, Jeonju 54907, Republic of Korea
| | - Hwan-Jeong Jeong
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Research Institute of Clinical Medicine of Jeonbuk National University, Biomedical Research Institute of Jeonbuk National University Medical School and Hospital, Jeonju 54907, Republic of Korea.
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Lee JH, Jeong JS, Chae KJ, Han YH, Kim SR, Lee YC. A Rare Case of Familial Schwannomatosis Showing Intrafamilial Variability with Identification of a Shared Novel Germline SMARCB1 Mutation. Medicina (Kaunas) 2022; 58:medicina58111592. [PMID: 36363549 PMCID: PMC9696231 DOI: 10.3390/medicina58111592] [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: 09/30/2022] [Revised: 10/27/2022] [Accepted: 10/30/2022] [Indexed: 11/06/2022]
Abstract
Schwannomatosis is characterized by the presence of multiple schwannomas without landmarks of NF2. It is considered the rarest form of neurofibromatosis (NF). Here, we report the first case of familial schwannomatosis with regard to the segmental/generalized phenotype, in which the proband and the daughter present a distinct phenotype in this classification. The proband presents a generalized, painless, extradural type of schwannomatosis, while the daughter shows a segmental, painful, intradural type of schwannomatosis. Whole-exome sequencing of the affected individuals revealed a shared novel SMARCB1 gene mutation (c.92A > G, p.Glu31Gly) despite the clinical variability. We thus suggest two points in the diagnosis of familial schwannomatosis: The identified novel germline SMARCB1 variant can be reflective of a phenotypical progression from a segmental to a generalized type of schwannomatosis, or an intrafamilial variability in inherited schwannomatosis, which was not reported in previous literature. The specific combination of somatic NF2 mutations may be a major factor in regulating the severity and scope of the resulting phenotype in schwannomatosis.
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Affiliation(s)
- Jun Hyun Lee
- Department of Internal Medicine, Jeonbuk National University School of Medicine, Jeonju 54907, Korea
- Correspondence: (J.H.L.); (Y.C.L.)
| | - Jae Seok Jeong
- Department of Internal Medicine, Jeonbuk National University School of Medicine, Jeonju 54907, Korea
- Department of Internal Medicine, Research Center for Pulmonary Disorders, Jeonbuk National University School of Medicine, Jeonju 54907, Korea
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Korea
| | - Kum Ju Chae
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Korea
- Department of Radiology, Jeonbuk National University School of Medicine, Jeonju 54907, Korea
| | - Yeon-Hee Han
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Korea
- Department of Nuclear Medicine, Jeonbuk National University Medical School, Jeonju 54907, Korea
| | - So Ri Kim
- Department of Internal Medicine, Jeonbuk National University School of Medicine, Jeonju 54907, Korea
- Department of Internal Medicine, Research Center for Pulmonary Disorders, Jeonbuk National University School of Medicine, Jeonju 54907, Korea
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Korea
| | - Yong Chul Lee
- Department of Internal Medicine, Jeonbuk National University School of Medicine, Jeonju 54907, Korea
- Department of Internal Medicine, Research Center for Pulmonary Disorders, Jeonbuk National University School of Medicine, Jeonju 54907, Korea
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Korea
- Correspondence: (J.H.L.); (Y.C.L.)
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Han YH, Jeong HJ, Kang HG, Lim ST. Incidental accumulation of Technetium-99m pertechnetate in subacute cerebral infarction: A case report. World J Clin Cases 2022; 10:8400-8405. [PMID: 36159510 PMCID: PMC9403665 DOI: 10.12998/wjcc.v10.i23.8400] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 06/17/2022] [Accepted: 07/06/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND When interpreting nuclear medicine images, unexpected findings are sometimes encountered. Recognizing these findings and determining the mechanism of their occurrence could have a significant impact on early diagnosis of critical diseases and the appropriate management of patients.
CASE SUMMARY A 59-year-old man was admitted to the emergency room due to left hemiparesis, left hemifacial palsy, and mild dysarthria. After 2 wk of hospitalization, the patient complained of dry eyes and mouth. Thus, salivary scintigraphy was performed to evaluate the functional status of his salivary glands. Incidental accumulation in the right frontoparietal area was found on salivary scintigraphy. Fluid-attenuated inversion recovery phase magnetic resonance (FLAIR phase MR) image showed diffuse high signal intensity in the same area. Anterior and posterior horns of the right lateral ventricle were obliterated and the midline was slightly shifted to the left side due to right frontoparietal swelling. On salivary scintigraphy, Tc-99m pertechnetate was incidentally accumulated in a subacute cerebral infarction lesion. Two years after the diagnosis of acute infarction, the second series of salivary scintigraphy showed no abnormal activity in the brain. FLAIR phase MR image also demonstrated markedly decreased high signal intensity in the previous infarction lesion without evidence of swelling indicating chronic cerebral infarction.
CONCLUSION This case highlights that Tc-99m pertechnetate could accumulate in a subacute cerebral infarction lesion. The mechanism of an unexpected uptake of Tc-99m pertechnetate in unusual sites should be evaluated and kept in mind for better interpretation.
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Affiliation(s)
- Yeon-Hee Han
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jounbuk National University Medical School and Hospital, Jeonju 54907, Jeonbuk, South Korea
| | - Hwan-Jeong Jeong
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jounbuk National University Medical School and Hospital, Jeonju 54907, Jeonbuk, South Korea
| | - Hyun Goo Kang
- Department of Neurology, Jeonbuk National University Medical School and Hospital, Jeonju 54907, Jeonbuk, South Korea
| | - Seok Tae Lim
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jounbuk National University Medical School and Hospital, Jeonju 54907, Jeonbuk, South Korea
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13
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Han YH, Jeong HJ, Lim ST. Clinical and metabolic parameters for predicting disease progression of gallbladder adenocarcinoma. Nucl Med Commun 2022; 43:42-48. [PMID: 34657083 PMCID: PMC8654257 DOI: 10.1097/mnm.0000000000001494] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 09/20/2021] [Indexed: 12/01/2022]
Abstract
OBJECTIVE This study aimed to identify reliable predictors of disease progression in patients with gallbladder (GB) adenocarcinoma. PATIENTS AND METHODS A total of 54 patients with GB adenocarcinoma underwent preoperative F-18 fluorodeoxyglucose (FDG) PET/CT. Age, sex, clinical stage, and pathologic differentiation were collected. Tumor size and PET parameters such as SUVmax, SUVmean, SUVpeak, metabolic tumor volume (MTV), and total lesion glycolysis were measured. Univariate and multivariate logistic regression analyses were performed to determine the utility of clinical values and PET parameters. Pearson bivariate correlation was used to evaluate the association between progression-free survival (PFS) and various parameters. RESULTS No recurrence was found in 15 of 54 patients, while six showed recurrence and another 33 manifested disease progression. There were significant differences in size, stage, pathologic differentiation, and PET parameters between the groups with and without recurrence/progression. However, there was no difference in those parameters between the groups with recurrence and progression. The average PFS of the groups with no recurrence, recurrence, and progression groups was 33.1, 17.1, and 5.0 months, respectively. In univariate analysis, age, sex, clinical stage, pathologic differentiation, size, and PET parameters were correlated with PFS. In multivariate analysis, only clinical stage and MTV were statistically significant and MTV showed the highest odds ratio. Pearson correlation coefficients showed moderate negative correlations between PFS and clinical stage or MTV. CONCLUSION In GB adenocarcinoma, clinical stage and MTV are the most powerful parameters for predicting recurrence and disease progression. Based on clinical stage, MTV will represent a strong prognostic predictor.
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Affiliation(s)
- Yeon-Hee Han
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Cyclotron Research Center, Molecular Imaging and Therapeutic Medicine Research Center, Jeonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, Republic of Korea
| | - Hwan-Jeong Jeong
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Cyclotron Research Center, Molecular Imaging and Therapeutic Medicine Research Center, Jeonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, Republic of Korea
| | - Seok Tae Lim
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Cyclotron Research Center, Molecular Imaging and Therapeutic Medicine Research Center, Jeonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, Republic of Korea
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14
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Hwang JH, Han YH, Rahman MDT, Lee CS. Quantitative assessment of dry mouth in scrub typhus using salivary scintigraphy. Sci Rep 2021; 11:23633. [PMID: 34880398 PMCID: PMC8655010 DOI: 10.1038/s41598-021-03185-z] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 10/01/2021] [Indexed: 11/24/2022] Open
Abstract
Scrub typhus is an acute febrile illness caused by the intracellular pathogen Orientia tsutsugamushi. The clinical features include fever, myalgia, lymphadenopathy, and dry mouth. However, no studies have assessed the symptom of dry mouth in patients with scrub typhus. We investigated the pattern of salivary scintigraphy during the acute febrile state and compared it with any changes after treatment. Fourteen patients underwent both pre- and post-treatment salivary scintigraphy. Imaging analysis was conducted using radioactivity in the oral cavity, parotid glands, and submandibular glands. During the acute phase, the radioactivity in the oral cavity markedly decreased, while that in the parotid and submandibular glands was preserved. After treatment, radioactivity in the oral cavity showed a significant increase at 20-min, 40-min, and after wash-out. The ejection fraction (%) of the parotid glands also increased after treatment. In contrast, the radioactivity levels of the parotid and submandibular glands were not statistically different after treatment. Salivary scintigraphy indicated that insufficient saliva excretion from the salivary glands into the oral cavity was one reason for the dry mouth reported by patients with scrub typhus. In the future, salivary scintigraphy imaging could contribute to the evaluation of dry mouth in patients with scrub typhus.
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Affiliation(s)
- Joo-Hee Hwang
- Department of Internal Medicine, Jeonbuk National University Medical School and Hospital, Jeonju, 54896, Republic of Korea.,Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, 54907, Republic of Korea
| | - Yeon-Hee Han
- Department of Nuclear Medicine, Jeonbuk National University Medical School, Jeonju, 54896, Republic of Korea.,Cyclotron Research Center, Molecular Imaging and Therapeutic Medicine Research Center, Jeonbuk National University Medical School and Hospital, Jeonju, 54907, Republic of Korea
| | - M D Tazikur Rahman
- Department of Medical Science, Jeonbuk National University Medical School, Jeonju, Republic of Korea
| | - Chang-Seop Lee
- Department of Internal Medicine, Jeonbuk National University Medical School and Hospital, Jeonju, 54896, Republic of Korea. .,Department of Medical Science, Jeonbuk National University Medical School, Jeonju, Republic of Korea. .,Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, 54907, Republic of Korea.
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15
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Jeong YJ, Lim ST, Jeong HJ, Park HS, Lee SY, Han YH. Atypical sarcoid reaction mimicking recurrence on F-18 FDG PET/CT in a patient with breast malignancy. Radiol Case Rep 2021; 16:3834-3837. [PMID: 34745400 PMCID: PMC8551536 DOI: 10.1016/j.radcr.2021.09.032] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/11/2021] [Accepted: 09/16/2021] [Indexed: 11/26/2022] Open
Abstract
Malignancy may lead to sarcoidosis, which is referred to as sarcoid reaction. This reaction is believed to be a host immune response to the release of soluble antigens from cancer cells. Studies have shown strong 2'-deoxy-2'-[F-18]fluoro-D-glucose (F-18 FDG) uptake in sarcoid reaction and in true sarcoidosis. Therefore, in patients with malignancy, sarcoid reactions can mimic metastasis or recurrence on F-18 FDG positron emission tomography/computed tomography (PET/CT). Herein, we report the case of a 58-year-old woman with a history of left breast cancer whose FDG PET/CT evaluated at 3 months after adjuvant chemotherapy presented hypermetabolic lymphadenopathy in the right supraclavicular and right mediastinal areas. We interpreted these as metastases because the involved lymph nodes were intensely hypermetabolic and appeared newly. Pathologic evaluation of the excised lymph node revealed noncaseating chronic granulomas without malignant cells, indicating a sarcoid reaction. After appropriate steroid therapy, both the size and metabolic activity of the lymphadenopathy substantially decreased. Most sarcoid reactions present as bilateral hilar and peribronchial lymphadenopathies. Our patient presents an atypical example that a sarcoid reaction can also present in a unilateral pattern, making its diagnosis challenging. When interpreting FDG PET/CT images, considering that the sarcoid reaction pattern can vary is crucial.
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Affiliation(s)
- Young Jin Jeong
- Department of Nuclear Medicine, Dong-A University College of Medicine, Busan, Republic of Korea
| | - Seok Tae Lim
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Research Institute of Clinical Medicine of Jeonbuk National University - Biomedical Research Institute of Jeonbuk National University Hospital, Jeonbuk National University Medical School and Hospital, 20, Geonjiro, Jeonju, Jeonbuk 54907, Republic of Korea
| | - Hwan-Jeong Jeong
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Research Institute of Clinical Medicine of Jeonbuk National University - Biomedical Research Institute of Jeonbuk National University Hospital, Jeonbuk National University Medical School and Hospital, 20, Geonjiro, Jeonju, Jeonbuk 54907, Republic of Korea
| | - Ho Sung Park
- Department of Pathology, Jeonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, Republic of Korea
| | - Sun Young Lee
- Department of Radiation Oncology, Jeonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, Republic of Korea
| | - Yeon-Hee Han
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Research Institute of Clinical Medicine of Jeonbuk National University - Biomedical Research Institute of Jeonbuk National University Hospital, Jeonbuk National University Medical School and Hospital, 20, Geonjiro, Jeonju, Jeonbuk 54907, Republic of Korea
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16
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Byun BH, Kim MH, Han YH, Jeong HJ. KSNM60 in Non-thyroidal Radionuclide Therapy: Leaping into the Future. Nucl Med Mol Imaging 2021; 55:203-209. [PMID: 34721713 DOI: 10.1007/s13139-021-00703-9] [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: 04/06/2021] [Revised: 05/02/2021] [Accepted: 05/31/2021] [Indexed: 11/28/2022] Open
Abstract
This year, the Korean Society of Nuclear Medicine (KSNM) is celebrating its 60th anniversary. Treatment, as well as diagnosis, has played a very important role in the development of nuclear medicine. Since I-131 was used for thyroid therapy in 1959, other radionuclide therapy is still being used, and attempts to use new radionuclide are increasing. In this review, we briefly summarize and introduce the therapies such as radioimmunotherapy, transarterial radioembolization, radionuclide therapy for neuroendocrine tumors, peptide receptor radionuclide therapy, control of metastatic bone pain, radiation synovectomy, radionuclide brachytherapy, alpha particle therapy, and boron neutron capture therapy, which has been being attempted so far in the field of nuclear medicine.
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Affiliation(s)
- Byung Hyun Byun
- Department of Nuclear Medicine, Korea Cancer Center Hospital, Korea Institute of Radiological and Medical Sciences (KIRAMS), Seoul, South Korea
| | - Myoung Hyoun Kim
- Department of Nuclear Medicine, Institute of Wonkwang Medical Science, Wonkwang University School of Medicine, Iksan, Jeollabuk-do South Korea
| | - Yeon-Hee Han
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Jeonbuk National University and Biomedical Research Institute of Jeonbuk National University Hospital, 20, Geonji-ro, Duckjin-gu, Jeonju-si, Jeollabuk-do 561-803 South Korea
| | - Hwan-Jeong Jeong
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Jeonbuk National University and Biomedical Research Institute of Jeonbuk National University Hospital, 20, Geonji-ro, Duckjin-gu, Jeonju-si, Jeollabuk-do 561-803 South Korea
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17
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Han YH, Hwang JH, Lee CS. Xerostomia in a patient with scrub typhus. Radiol Case Rep 2021; 16:2754-2756. [PMID: 34367389 PMCID: PMC8326562 DOI: 10.1016/j.radcr.2021.06.066] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 06/20/2021] [Accepted: 06/21/2021] [Indexed: 11/26/2022] Open
Abstract
Scrub typhus is an acute febrile disease caused by the intracellular organism Orientia tsutsugamushi. The main pathogenesis is focal or disseminated multi-organ vasculitis caused by the infection of endothelial cells and the perivascular infiltration of leukocytes. Many studies have reported interstitial pneumonia, cholecystitis, pancreatitis, and meningoencephalitis in scrub typhus. However, there is no report about sialoadenitis in a patient with scrub typhus. A 79-year-old man was admitted to the emergency room due to a high fever, headache, and myalgia. Scrub typhus was confirmed based on the indirect immunofluorescence assay and the nested polymerase chain reaction. He suffered from severe dry mouth and underwent Tc-99m pertechnetate salivary scintigraphy. While the radiopharmeceutical uptake of the bilateral parotid and submandibular glands was within normal range, salivary excretion into the oral cavity was markedly decreased. After the proper antibiotic treatment, salivary scintigraphy was performed again. Radioactivity in the oral cavity was increased and the ejection fraction (%) after using sialogogue was also improved to the normal range. As far as we know, this is the first report to show salivary scintigraphy of a patient with scrub typhus. By using a Tc-99m pertechnetate salivary scintigraphy, we found that the excretory function of salivary glands was markedly decreased, while the uptake ability was preserved in scrub typhus, unlike Sjögren's syndrome and radiation-induced xerostomia. Salivary scintigraphy presents dry mouth objectively and provides quantitative values as well. Salivary scintigraphy could contribute to the assessment of sialoadenitis before and after treatment of scrub typhus.
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Affiliation(s)
- Yeon-Hee Han
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Research Institute of Clinical Medicine of Jeonbuk National University - Biomedical Research Institute of Jeonbuk National University Hospital, Jeonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, Republic of Korea
| | - Joo-Hee Hwang
- Department of Internal Medicine, Research Institute of Clinical Medicine of Jeonbuk National University -Biomedical Research Institute of Jeonbuk National University Hospital, Jeonbuk National University Medical School and Hospital, 567 Baekje-daero, Jeonju, Jeonbuk 54907, Republic of Korea
| | - Chang-Seop Lee
- Department of Internal Medicine, Research Institute of Clinical Medicine of Jeonbuk National University -Biomedical Research Institute of Jeonbuk National University Hospital, Jeonbuk National University Medical School and Hospital, 567 Baekje-daero, Jeonju, Jeonbuk 54907, Republic of Korea
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18
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Han YH, Hwang JH, Lee CS. Pre- and Posttreatment Findings of F-18 Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography in a Case of Acute Q Fever. Am J Trop Med Hyg 2020; 102:1168-1169. [PMID: 32519650 PMCID: PMC7253120 DOI: 10.4269/ajtmh.20-0012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Affiliation(s)
- Yeon-Hee Han
- Cyclotron Research Center, Molecular Imaging and Therapeutic Medicine Research Center, Jeonbuk National University Medical School and Hospital, Jeonju, Republic of Korea.,Department of Nuclear Medicine, Jeonbuk National University Medical School, Jeonju, Republic of Korea
| | - Joo-Hee Hwang
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Republic of Korea.,Department of Internal Medicine, Jeonbuk National University Medical School, Jeonju, Republic of Korea
| | - Chang-Seop Lee
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Republic of Korea.,Department of Internal Medicine, Jeonbuk National University Medical School, Jeonju, Republic of Korea
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19
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Jeon SH, Park YH, Oh SY, Kang JJ, Han YH, Jeong HJ, Lee JM, Park M, Kim JS, Dieterich M. Neural Correlates of Transient Mal de Debarquement Syndrome: Activation of Prefrontal and Deactivation of Cerebellar Networks Correlate With Neuropsychological Assessment. Front Neurol 2020; 11:585. [PMID: 32695063 PMCID: PMC7338684 DOI: 10.3389/fneur.2020.00585] [Citation(s) in RCA: 5] [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: 04/08/2020] [Accepted: 05/20/2020] [Indexed: 11/13/2022] Open
Abstract
Background: Mal de debarquement syndrome (MdDS) is characterized by a subjective perception of self-motion after exposure to passive motion, mostly after sea travel. A transient form of MdDS (t-MdDS) is common in healthy individuals without pathophysiological certainty. In the present cross-sectional study, the possible neuropsychiatric and functional neuroimaging changes in local fishermen with t-MdDS were evaluated. Methods: The present study included 28 fishermen from Buan County in South Korea; 15 (15/28, 53.6%) participants experienced t-MdDS for 1–6 h, and 13 were asymptomatic (13/28, 46.4%). Vestibular function tests were performed using video-oculography, the video head impulse test, and ocular and cervical vestibular-evoked myogenic potentials. Visuospatial function was also assessed by the Corsi block test. Brain imaging comprised structural MRI, resting-state functional MRI, and [18F]FDG PET scans. Results: The results of vestibular function tests did not differ between the fishermen with and those without t-MdDS. However, participants with t-MdDS showed better performance in visuospatial memory function than those without t-MdDS (6.40 vs. 5.31, p-value = 0.016) as determined by the Corsi block test. Structural brain MRIs were normal in both groups. [18F]FDG PET showed a relative hypermetabolism in the bilateral occipital and prefrontal cortices and hypometabolism in the vestibulocerebellum (nodulus and uvula) in participants with t-MdDS compared to those without t-MdDS. Resting-state functional connectivities were significantly decreased between the vestibular regions of the flocculus, superior temporal gyrus, and parietal operculum and the visual association areas of the middle occipital gyrus, fusiform gyrus, and cuneus in participants with t-MdDS. Analysis of functional connectivity of the significant regions in the PET scans revealed decreased connectivity between the prefrontal cortex and visual processing areas in the t-MdDS group. Conclusion: Increased visuospatial memory, altered metabolism in the prefrontal cortex, visual cognition cortices, and the vestibulocerebellum, and decreased functional connectivity between these two functional areas might indicate reductions in the integration of vestibular input and enhancement of visuospatial attention in subjects with t-MdDS. Current functional neuroimaging similarities from transient MdDS via chronic MdDS to functional dizziness and anxiety disorders suggest a shared mechanism of enhanced self-awareness as a kind of continuum or as overlap disorders.
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Affiliation(s)
- Seung-Ho Jeon
- Department of Neurology, Jeonbuk National University Hospital, Jeonju-si, South Korea.,Research Institute of Clinical Medicine of Jeonbuk National University, Jeonbuk National University Hospital, Jeonju-si, South Korea
| | - Yeong-Hun Park
- Department of Biomedical Engineering, Hanyang University, Seoul, South Korea
| | - Sun-Young Oh
- Department of Neurology, Jeonbuk National University Hospital, Jeonju-si, South Korea.,Research Institute of Clinical Medicine of Jeonbuk National University, Jeonbuk National University Hospital, Jeonju-si, South Korea
| | - Jin-Ju Kang
- Department of Neurology, Jeonbuk National University Hospital, Jeonju-si, South Korea.,Research Institute of Clinical Medicine of Jeonbuk National University, Jeonbuk National University Hospital, Jeonju-si, South Korea
| | - Yeon-Hee Han
- Nuclear Medicine, School of Medicine, Jeonbuk National University Hospital, Jeonju-si, South Korea
| | - Hwan-Jeong Jeong
- Research Institute of Clinical Medicine of Jeonbuk National University, Jeonbuk National University Hospital, Jeonju-si, South Korea.,Nuclear Medicine, School of Medicine, Jeonbuk National University Hospital, Jeonju-si, South Korea
| | - Jong-Min Lee
- Department of Biomedical Engineering, Hanyang University, Seoul, South Korea
| | - Mijin Park
- Department of Biomedical Engineering, Hanyang University, Seoul, South Korea
| | - Ji-Soo Kim
- Department of Neurology, Seoul National University Bundang Hospital, Seoul National University School of Medicine, Seoul, South Korea
| | - Marianne Dieterich
- Department of Neurology, Ludwig-Maximilians-University, Munich, Germany.,German Center for Vertigo and Balance Disorders (IFBLMU), Ludwig-Maximilians-University, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
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20
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Han YH, Wan Y, Xiong H, Sun GL. Structural maintenance of chromosomes 2 is identified as an oncogene in bladder cancer in vitro and in vivo. Neoplasma 2020; 67:364-370. [PMID: 31986889 DOI: 10.4149/neo_2020_190510n419] [Citation(s) in RCA: 3] [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] [Received: 05/10/2019] [Accepted: 08/26/2019] [Indexed: 11/08/2022]
Abstract
Taurine upregulated gene 1 (TUG1) has been found to promote bladder cancer cell growth in our recent research. In this study, TUG1-depleted bladder cancer cells were used to identify potent players in bladder cancer. Human gene expression arrays were used for transcriptome profiling of TUG1-depleted bladder cancer cells. Cell proliferation was analyzed by MTT assay. Cell apoptosis and cell cycle were analyzed by flow cytometry. Colony formation assay was used to observe the changes of colony formation rates. Xenograft formation assay was performed in nude mice. Immunohistochemical staining was used to test the gene expression levels in tissues from bladder cancer patients. We found that deregulated genes were strongly enriched in cell cycle or pathways in cancer in TUG1-depleted bladder cancer cells. Structural maintenance of chromosomes 2 (SMC2) was inhibited after TUG1 knockdown. The depletion of TUG1 or SMC2 led to G2/M phase arrest in bladder cancer cells. SMC2 depletion inhibited bladder cancer cell proliferation, promoted apoptosis, decreased colony formation, and reduced tumor growth in xenograft nude mice. Overexpression of SMC2 restored the growth of TUG1-depleted cells. The expression levels of SMC2 were higher in human bladder cancer tissues than that in paired normal tissues. Our data suggest that SMC2 is an oncogene in bladder cancer and depletion of SMC2 might have potential therapeutical significance in bladder cancer.
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Affiliation(s)
- Y H Han
- Department of Clinical Medicine, Tibet University Medical College, Lhasa, China
| | - Y Wan
- Department of Geriatric Medicine and Neurology, West China School of Public Health and West China Forth Hospital, Sichuan University, Chengdu, China
| | - H Xiong
- Department of Clinical Medicine, Tibet University Medical College, Lhasa, China.,Department of Geriatric Medicine and Neurology, West China School of Public Health and West China Forth Hospital, Sichuan University, Chengdu, China
| | - G L Sun
- Department of Clinical Medicine, Tibet University Medical College, Lhasa, China
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21
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Ahn SY, Jung SY, Jung SH, Ahn JS, Lee JJ, Kim HJ, Kang SR, Han YH, Kwak JY, Yhim HY, Yang DH. Prognostic significance of FDG-PET/CT in determining upfront autologous stem cell transplantation for the treatment of peripheral T cell lymphomas. Ann Hematol 2019; 99:83-91. [DOI: 10.1007/s00277-019-03867-9] [Citation(s) in RCA: 2] [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] [Received: 08/18/2019] [Accepted: 11/20/2019] [Indexed: 01/14/2023]
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22
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Affiliation(s)
- Yeon-Hee Han
- Cyclotron Research Center, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Jeonju, Republic of Korea.,Department of Nuclear Medicine, Chonbuk National University Medical School, Jeonju, Republic of Korea
| | - Joo-Hee Hwang
- Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Republic of Korea.,Department of Internal Medicine, Chonbuk National University Medical School, Jeonju, Republic of Korea
| | - Chang-Seop Lee
- Department of Internal Medicine, Chonbuk National University Medical School, Jeonju, Republic of Korea.,Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Republic of Korea
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23
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Yhim HY, Park Y, Han YH, Kim S, Kang SR, Moon JH, Jeong JH, Shin HJ, Kim K, Choi YS, Kim K, Kim MK, Kong E, Kim DS, Eo JS, Lee JH, Kang DY, Lee WS, Lee SM, Do YR, Ham JS, Kim SJ, Kim WS, Choi JY, Yang DH, Kwak JY. Correction to: a risk stratification model for nodal peripheral T-cell lymphomas based on the NCCN-IPI and posttreatment Deauville score. Eur J Nucl Med Mol Imaging 2018; 45:2482-2483. [PMID: 30221329 DOI: 10.1007/s00259-018-4163-4] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Unfortunately, the original version of this article contained several errors made during final step of article production. In the results section (fourth sentence) of the Abstract, the incomplete sentence,", 31.4% in high-risk group and 4.7% in treatment failure group.
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Affiliation(s)
- Ho-Young Yhim
- Department of Internal Medicine, Chonbuk National University Medical School, Jeonju, South Korea
- Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, South Korea
| | - Yong Park
- Department of Internal Medicine, Korea University Anam Hospital College of Medicine, Seoul, South Korea
| | - Yeon-Hee Han
- Department of Nuclear Medicine, Chonbuk National University Hospital, Jeonju, South Korea
| | - Sungeun Kim
- Department of Nuclear Medicine, Korea University Anam Hospital, Seoul, South Korea
| | - Sae-Ryung Kang
- Department of Nuclear Medicine, Chonnam National University Hwasun Hospital, Jeollanam-do, South Korea
| | - Joon-Ho Moon
- Department of Internal Medicine, Kyungpook National University Hospital, Daegu, South Korea
| | - Ju Hye Jeong
- Department of Nuclear Medicine, Kyungpook National University Hospital, Daegu, South Korea
| | - Ho-Jin Shin
- Department of Internal Medicine, Pusan National University Hospital, Busan, South Korea
| | - Keunyoung Kim
- Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea
| | - Yoon Seok Choi
- Department of Internal Medicine, Chungnam National University Hospital, Daejeon, South Korea
| | - Kunho Kim
- Department of Nuclear Medicine, Chungnam National University Hospital, Daejeon, South Korea
| | - Min Kyoung Kim
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, South Korea
| | - Eunjung Kong
- Department of NuclearMedicine, Yeungnam University College of Medicine, Daegu, South Korea
| | - Dae Sik Kim
- Department of Internal Medicine, Korea University Guro Hospital College of Medicine, Seoul, South Korea
| | - Jae Seon Eo
- Department of Nuclear Medicine, Korea University Guro Hospital College of Medicine, Seoul, South Korea
| | - Ji Hyun Lee
- Department of Internal Medicine, Dong-A University College of Medicine, Busan, South Korea
| | - Do-Young Kang
- Department of Nuclear Medicine, Dong-A University College of Medicine, Busan, South Korea
| | - Won Sik Lee
- Department of Internal Medicine, Inje University College of Medicine, Inje University Busan Paik Hospital, Busan, South Korea
| | - Seok Mo Lee
- Department of Nuclear Medicine, Inje University College of Medicine, Inje University Busan Paik Hospital, Busan, South Korea
| | - Young Rok Do
- Department of Internal Medicine, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, South Korea
| | - Jun Soo Ham
- Department of Medicine, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Seok Jin Kim
- Department of Medicine, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Won Seog Kim
- Department of Medicine, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Joon Young Choi
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Deok-Hwan Yang
- Department of Internal Medicine, Chonnam National University Hwasun Hospital, 322 Seoyang-ro, Hwasun, Jeollanam-do, 519-763, Republic of Korea.
| | - Jae-Yong Kwak
- Department of Internal Medicine, Chonbuk National University Medical School, Jeonju, South Korea
- Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, South Korea
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Yhim HY, Park Y, Han YH, Kim S, Kang SR, Moon JH, Jeong JH, Shin HJ, Kim K, Choi YS, Kim K, Kim MK, Kong E, Kim DS, Eo JS, Lee JH, Kang DY, Lee WS, Lee SM, Do YR, Ham JS, Kim SJ, Kim WS, Choi JY, Yang DH, Kwak JY. A risk stratification model for nodal peripheral T-cell lymphomas based on the NCCN-IPI and posttreatment Deauville score. Eur J Nucl Med Mol Imaging 2018; 45:2274-2284. [PMID: 30056546 DOI: 10.1007/s00259-018-4093-1] [Citation(s) in RCA: 7] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 07/11/2018] [Indexed: 02/01/2023]
Abstract
PURPOSE The aim of this study was to establish a risk-stratification model integrating posttreatment metabolic response using the Deauville score and the pretreatment National Comprehensive Cancer Network-International Prognostic Index (NCCN-IPI) in nodal PTCLs. METHODS We retrospectively analysed 326 patients with newly diagnosed nodal PTCLs between January 2005 and June 2016 and both baseline and posttreatment PET/CT data. The final model was validated using an independent prospective cohort of 79 patients. RESULTS Posttreatment Deauville score (1/2, 3, and 4/5) and the NCCN-IPI (low, low-intermediate, high-intermediate, and high) were independently associated with progression-free survival: for the Deauville score, the hazard ratios (HRs) were 1.00 vs. 2.16 (95% CI 1.47-3.18) vs. 7.86 (5.66-10.92), P < 0.001; and for the NCCN-IPI, the HRs were 1.00 vs. 2.31 (95% CI 1.20-4.41) vs. 4.42 (2.36-8.26) vs. 7.09 (3.57-14.06), P < 0.001. Based on these results, we developed a simplified three-group risk model comprising a low-risk group (low or low-intermediate NCCN-IPI with a posttreatment Deauville score of 1 or 2, or low NCCN-IPI with a Deauville score of 3), a high-risk group (high or high-intermediate NCCN-IPI with a Deauville score of 1/2 or 3, or low-intermediate NCCN-IPI with a Deauville score of 3), and a treatment failure group (Deauville score 4 or 5). This model was significantly associated with progression-free survival (5-year, 70.3%, 31.4%, and 4.7%; P < 0.001) and overall survival (5-year, 82.1%, 45.5%, and 14.7%; P < 0.001). Similar associations were also observed in the independent validation cohort. CONCLUSION The risk-stratification model integrating posttreatment Deauville score and pretreatment NCCN-IPI is a powerful tool for predicting treatment failure in patients with nodal PTCLs.
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Affiliation(s)
- Ho-Young Yhim
- Department of Internal Medicine, Chonbuk National University Medical School, Jeonju, South Korea
- Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, South Korea
| | - Yong Park
- Department of Internal Medicine, Korea University Anam Hospital College of Medicine, Seoul, South Korea
| | - Yeon-Hee Han
- Department of Nuclear Medicine, Chonbuk National University Hospital, Jeonju, South Korea
| | - Sungeun Kim
- Department of Nuclear Medicine, Korea University Anam Hospital, Seoul, South Korea
| | - Sae-Ryung Kang
- Department of Nuclear Medicine, Chonnam National University Hwasun Hospital, Jeollanam-do, South Korea
| | - Joon-Ho Moon
- Department of Internal Medicine, Kyungpook National University Hospital, Daegu, South Korea
| | - Ju Hye Jeong
- Department of Nuclear Medicine, Kyungpook National University Hospital, Daegu, South Korea
| | - Ho-Jin Shin
- Department of Internal Medicine, Pusan National University Hospital, Busan, South Korea
| | - Keunyoung Kim
- Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea
| | - Yoon Seok Choi
- Department of Internal Medicine, Chungnam National University Hospital, Daejeon, South Korea
| | - Kunho Kim
- Department of Nuclear Medicine, Chungnam National University Hospital, Daejeon, South Korea
| | - Min Kyoung Kim
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, South Korea
| | - Eunjung Kong
- Department of Nuclear Medicine, Yeungnam University College of Medicine, Daegu, South Korea
| | - Dae Sik Kim
- Department of Internal Medicine, Korea University Guro Hospital College of Medicine, Seoul, South Korea
| | - Jae Seon Eo
- Department of Nuclear Medicine, Korea University Guro Hospital College of Medicine, Seoul, South Korea
| | - Ji Hyun Lee
- Department of Internal Medicine, Dong-A University College of Medicine, Busan, South Korea
| | - Do-Young Kang
- Department of Nuclear Medicine, Dong-A University College of Medicine, Busan, South Korea
| | - Won Sik Lee
- Department of Internal Medicine, Inje University College of Medicine, Inje University Busan Paik Hospital, Busan, South Korea
| | - Seok Mo Lee
- Department of Nuclear Medicine, Inje University College of Medicine, Inje University Busan Paik Hospital, Busan, South Korea
| | - Young Rok Do
- Department of Internal Medicine, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, South Korea
| | - Jun Soo Ham
- Department of Medicine, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Seok Jin Kim
- Department of Medicine, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Won Seog Kim
- Department of Medicine, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Joon Young Choi
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Deok-Hwan Yang
- Department of Internal Medicine, Chonnam National University Hwasun Hospital, 322 Seoyang-ro, Hwasun, Jeollanam-do, 519-763, Republic of Korea.
| | - Jae-Yong Kwak
- Department of Internal Medicine, Chonbuk National University Medical School, Jeonju, South Korea
- Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, South Korea
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Han YH, Jeong HJ, Sohn MH, Lee SY, Lim ST. Radioiodine ablation in thyroid cancer patients: renal function and external radiation dose rate at discharge according to patient preparation. Q J Nucl Med Mol Imaging 2018. [PMID: 29521481 DOI: 10.23736/s1824-4785.18.03029-7] [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] [Indexed: 11/08/2022]
Abstract
BACKGROUND An elevated thyroid stimulating hormone (TSH) level is essential for the uptake of radioiodine into thyroid remnants and residual thyroid cancer in patients undergoing high-dose radioiodine therapy (HD-RIT). Recently, the use of recombinant human thyroid stimulating hormone (rh-TSH) has increased in preference over the conventional method of thyroid hormone withdrawal (THW). However, the clinical influences of the two methods, aside from the therapeutic effects, have not been widely evaluated. The aim of this work was to investigate the influences of the two methods, particularly on the renal function and external radiation dose rate (EDR) from patients undergoing HD-RIT. METHODS From February 2012 to November 2016, 667 patients (M:F=138:529, mean age: 47.7±11.8 years), who underwent first HD-RIT (120, 150, or 180 mCi, 1 mCi=37 MBq) for ablation of remnant thyroid tissue or residual thyroid cancer, were enrolled. Patients who were proven to have distant metastasis to lung or bone were excluded. Low- to high-risk patients based on 2015 American thyroid association management guidelines who underwent first HD-RIT in our department were included. The period from total thyroidectomy to HD-RIT was limited within 12 months. The following parameters were collected and evaluated: age, gender, histology type and TNM stage of thyroid cancer, glomerular filtration rate on the admission day for total thyroidectomy (baseline GFR), GFR on the day of HD-RIT (follow-up GFR), thyroglobulin (Tg) and TSH levels on the day of HD-RIT, and EDR on the discharge day after HD-RIT. RESULTS There were 386 patients using the THW method and 281 patients choosing the rh-TSH method. The baseline GFR of the THW group (106±16 mL/min/1.73 m2) and that of the rh-TSH group (104±17 mL/min/1.73 m2) were within normal limits and there was no significant difference. However, follow-up GFR of the THW group (84±17 mL/min/1.73 m2) was much lower than that of the rh-TSH group (104±16 mL/min/1.73 m2) (P=0.000). In the THW group, the follow-up GFR decreased significantly (P=0.000), yet the follow-up GFR of the rh-TSH group was not statistically different when compared with its baseline GFR (P=0.142). EDRs were lower in all rh-TSH subgroups compared to those of THW subgroups with statistical significance. Tg and TSH levels were not different between the two groups, excluding a few small-sized subgroups analyses. CONCLUSIONS In this retrospective analysis of renal function and EDR, the use of rh-TSH appears to help maintain renal function and finally decrease EDR in contrast to the THW method when undergoing HD-RIT.
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Affiliation(s)
- Yeon-Hee Han
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Chonbuk National University, Jeonju, Jeonbuk, South Korea.,Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Jeonbuk, South Korea.,Cyclotron Research Center, Jeonju, Jeonbuk, South Korea.,Molecular Imaging and Therapeutic Medicine Research Center, Jeonju, Jeonbuk, South Korea.,Chonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, South Korea
| | - Hwan-Jeong Jeong
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Chonbuk National University, Jeonju, Jeonbuk, South Korea.,Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Jeonbuk, South Korea.,Cyclotron Research Center, Jeonju, Jeonbuk, South Korea.,Molecular Imaging and Therapeutic Medicine Research Center, Jeonju, Jeonbuk, South Korea.,Chonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, South Korea
| | - Myung-Hee Sohn
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Chonbuk National University, Jeonju, Jeonbuk, South Korea.,Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Jeonbuk, South Korea.,Cyclotron Research Center, Jeonju, Jeonbuk, South Korea.,Molecular Imaging and Therapeutic Medicine Research Center, Jeonju, Jeonbuk, South Korea.,Chonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, South Korea
| | - Sun Y Lee
- Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Jeonbuk, South Korea.,Chonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, South Korea.,Department of Radiation Oncology, Research Institute of Clinical Medicine of Chonbuk National University, Jeonju, Jeonbuk, South Korea
| | - Seok T Lim
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Chonbuk National University, Jeonju, Jeonbuk, South Korea - .,Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Jeonbuk, South Korea.,Cyclotron Research Center, Jeonju, Jeonbuk, South Korea.,Molecular Imaging and Therapeutic Medicine Research Center, Jeonju, Jeonbuk, South Korea
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Oh PS, Kim EM, Kim M, Kim IS, Han YH, Lim S, Sohn MH, Ko MH, Jeong HJ. Protective Effect of BLED-exposed Conditioned Media on Cell Injury. Photochem Photobiol 2018; 94:583-588. [PMID: 29349780 DOI: 10.1111/php.12887] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 12/08/2017] [Indexed: 02/06/2023]
Abstract
Previous studies have reported that 450 nm blue light emitting diode (BLED) induces apoptosis through a mitochondria-mediated pathway in cancer cells and reduces the early stage tumor growth. This study was performed to determine the effects of BLED-irradiated cell metabolites on cell injury. Our results showed that conditioned medium (CM) from cells irradiated with low-dose BLED (LCM) inhibited apoptosis and increased cell survival. Cell protection-related proteins were identified in cell metabolites of CM and LCM using 2-DE and MALDI-TOF analysis. Treatment with LCM inhibited apoptotic cell death and increased the live cell population. The cellular protective effect of LCM was associated with keratin and collagen type VI secretion from cells after low dose of BLED irradiation. Interestingly, expression of endoplasmic reticulum stress proteins was dose dependently increased after 4 h BLED irradiation. Only levels of BiP, CHOP and ERO1-Lα were decreased significantly after 24 h incubation, indicating their anti-apoptotic property in these cells. These results indicated that cell metabolites stimulated by low-dose BLED irradiation have a cytoprotective effect on cell injury via increasing transient intracellular ER stress. Further studies remain to provide the molecular mechanisms of LCM for cytoprotective activity.
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Affiliation(s)
- Phil-Sun Oh
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Korea
| | - Eun-Mi Kim
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Korea
| | - Minjoo Kim
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Korea
| | - In Sun Kim
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Korea
| | - Yeon-Hee Han
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Korea
| | - SeokTae Lim
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Korea
| | - Myung-Hee Sohn
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Korea
| | - Myoung-Hwan Ko
- Department of Physical Medicine & Rehabilitation, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Korea
| | - Hwan-Jeong Jeong
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Korea
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Abstract
INTRODUCTION Mild hyperthermia has been known to enhance the response of tumours to radiotherapy or chemotherapy by increasing tumour blood flow, thereby increasing tumour oxygenation or drug delivery. The purpose of this study was to assess the changes in temperature and blood flow in human cervical cancer in response to regional heating with modulated electro-hyperthermia (mEHT). METHODS The pelvic area of 20 patients with cervical carcinoma was heated with mEHT. The peri-tumour temperature was measured using an internal organ temperature probe. The tumour blood flow was measured using 3D colour Doppler ultrasound by determining the peak systolic velocity/end-diastolic velocity ratio (S/D ratio) and the resistance index (RI) within blood vessels. RESULTS The mean peri-tumour temperature was 36.7 ± 0.2 °C before heating and increased to 38.5 ± 0.8 °C at the end of heating for 60 min. The marked declines in RI and S/D values strongly demonstrated that heating significantly increased tumour blood perfusion. CONCLUSIONS Regional heating of the pelvic area with mEHT significantly increased the peri-tumour temperature and improved the blood flow in cervical cancer. This is the first demonstration that the blood flow in cervical cancer is increased by regional hyperthermia. Such increases in temperature and blood flow may account for the clinical observations that hyperthermia improves the response of cervical cancer to radiotherapy or chemotherapy.
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Affiliation(s)
- Sun-Young Lee
- a Department of Radiation Oncology , Chonbuk National University Hospital-Chonbuk National University Medical School , Jeonju , Republic of Korea.,b Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital , Jeonju , Republic of Korea
| | - Jong-Hun Kim
- b Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital , Jeonju , Republic of Korea.,c Division of Cardiovascular Thoracic Surgery , Chonbuk National University Hospital-Chonbuk National University Medical School , Jeonju , Republic of Korea
| | - Yeon-Hee Han
- b Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital , Jeonju , Republic of Korea.,d Department of Nuclear Medicine , Chonbuk National University Hospital-Chonbuk National University Medical School , Jeonju , Republic of Korea
| | - Dong-Hyu Cho
- e Department of Obstetrics and Gynecology , Chonbuk National University Hospital-Chonbuk National University Medical School , Jeonju , Republic of Korea
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Park S, Kwon JH, Han YH, Lee KS. Percutaneous Transcatheter Embolisation of the Renal Artery for Chronic Unilateral Haematuria. Hong Kong J Radiol 2017. [DOI: 10.12809/hkjr1715352] [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: 11/05/2022] Open
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Ingravallo F, Kim KH, Han YH, Volta A, Chiari P, Taddia P, Kim JS. Difficulties and practices regarding information provision among Korean and Italian nurses. Int Nurs Rev 2017; 64:528-535. [PMID: 28556200 DOI: 10.1111/inr.12374] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 11/30/2022]
Abstract
AIM To investigate nurses' opinions and practices of providing information in a global context through cultural comparison. BACKGROUND AND INTRODUCTION Providing sufficient information to patients about nursing interventions and plans is essential for patient-centred care. While many countries have specific legislation making information delivery to patients a legal duty of nurses, no such legislation exists in both the Republic of Korea and Italy; nurses' only guidance is the deontological code. METHODS This was a cross-sectional survey study involving a convenience sample of 174 Korean nurses and 121 Italian nurses working in internal medicine and surgery at university hospitals. Data were collected using a self-administered questionnaire between February and November 2014. The questionnaire assessed demographic and professional characteristics, and difficulties and practices regarding information provision. RESULTS Korean and Italian nurses significantly differed in all demographic and professional characteristics. More Korean than Italian participants reported that their role in providing information was well explained within their teams, but both groups reported the same level and type of difficulties in delivering information. Nurses in both countries regularly informed patients about medications and nursing procedures, but provided information about nursing care plans less frequently. Few nurses frequently provided information to relatives instead of patients. CONCLUSIONS Despite cultural, demographic and professional differences between Korean and Italian nurses, their difficulties and practices in information delivery to patient were similar. IMPLICATIONS FOR NURSING AND HEALTH POLICY Hospital managers and policymakers should be aware that nurse-patient communication can be impaired by organizational factors, patient characteristics or the interaction among providers. Educational interventions and strategies are needed to increase information provision to patients about nursing care plans.
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Affiliation(s)
- F Ingravallo
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - K H Kim
- Red Cross College of Nursing, Chung-Ang University, 84 Heukseok-Ro, Dongjack-Gu, Seoul, 156-756, Republic of Korea
| | - Y H Han
- Department of Nursing, Hallym Polytechnic University, Chuncheon, Republic of Korea
| | - A Volta
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - P Chiari
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - P Taddia
- Nursing, Technical and Rehabilitation Assistance Service, Rizzoli Orthopedic Institute, Bologna, Italy
| | - J S Kim
- Red Cross College of Nursing, Chung-Ang University, 84 Heukseok-Ro, Dongjack-Gu, Seoul, 156-756, Republic of Korea
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Song MK, Chung JS, Yhim HY, Lim SN, Kim SJ, Han YH, Shim HK, Jung SH, Lee JJ, Yang DH. Tumor necrosis and complete resection has significant impacts on survival in patients with limited-stage upper aerodigestive tract NK/T cell lymphoma. Oncotarget 2017; 8:79337-79346. [PMID: 29108312 PMCID: PMC5668045 DOI: 10.18632/oncotarget.18107] [Citation(s) in RCA: 7] [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: 03/31/2017] [Accepted: 05/10/2017] [Indexed: 11/25/2022] Open
Abstract
Tumor necrosis (TN) is associated with worse prognosis in several solid cancers. Whether TN predicts poor outcome in natural killer cell / T cell lymphoma (NKTCL) is unclear. We investigated the clinical impact of TN on survival and other novel prognostic parameters in upper aero-digestive tract (UAT) NKTCL of 100 patients with limited stage. TN was significantly associated with poor performance status (p = 0.049), high Korean Prognostic Index score (p = 0.024), high C-reactive protein/albumin ratio (p = 0.003), higher maximum standard uptake value on positron emission tomography/computed tomography (PET/CT) (p = 0.008) and higher metabolic tumor volume (MTV) on PET/CT (p < 0.001). In univariate and multivariate analyses, progression-free survival and overall survival were independently associated with High MTV status (p = 0.001, p = 0.032), TN (p = 0.018, p = 0.009), local tumor invasiveness (p = 0.007, p = 0.035), complete resection (p = 0.020, p = 0.028) and regional lymph node involvement (p < 0.001, p < 0.001). TN and complete resection are concluded to be novel independent prognostic factors in patients with UAT NKTCL.
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Affiliation(s)
- Moo-Kon Song
- Department of Hemato-Oncology, Hanyang University Hanmaeum Changwon Hospital, Changwon, Korea
| | - Joo-Seop Chung
- Department of Hematology-Oncology, Pusan National University Hospital, Busan, Korea
| | - Ho-Young Yhim
- Department of Hematology, Chonbuk National University Hospital, Jeonju, Korea
| | - Sung-Nam Lim
- Department of Hematology, Busan Haeundae Paik Hospital, Busan, Korea
| | - Seong-Jang Kim
- Department of Nuclear Medicine, Pusan National University Hospital, Busan, Korea
| | - Yeon-Hee Han
- Department of Nuclear Medicine, Chonbuk National University Hospital, Jeonju, Korea
| | - Hye-Kyung Shim
- Department of Nuclear Medicine, Busan Haeundae Paik Hospital, Busan, Korea
| | - Sung-Hoon Jung
- Department of Hematology-Oncology, Chonnam National University Hwasun Hospital, Hwasun, Korea
| | - Je-Jung Lee
- Department of Hematology-Oncology, Chonnam National University Hwasun Hospital, Hwasun, Korea
| | - Deok-Hwan Yang
- Department of Hematology-Oncology, Chonnam National University Hwasun Hospital, Hwasun, Korea
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Shi SM, Han YH, Wang HB. [Research progress of mutational spectrum and pathophysiology of WFS1 gene in Wolfram syndrome and nonsyndromic low frequency sensorineural hearing loss]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 51:712-715. [PMID: 27666717 DOI: 10.3760/cma.j.issn.1673-0860.2016.09.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Compound homozygous or heterozygous mutations in WFS1 can lead to autosomal recessive Wolfram syndrome (WS), and heterozygous mutations in WFS1 can lead to autosomal dominant non-syndromic low frequency sensorineural hearing loss (LFSNHL). In addition, mutations in the WFS region has relationship with diabetes and psychiatric diseases. In this paper, we provide an overview of genetic research with different phenotypes, including WS and LFSNHL.
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Affiliation(s)
- S M Shi
- Department of Otorhinolaryngology Head and Neck Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Shandong Province Key Laboratory of Otology, Jinan 250021, China
| | - Y H Han
- Department of Otorhinolaryngology Head and Neck Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Shandong Province Key Laboratory of Otology, Jinan 250021, China
| | - H B Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Shandong Province Key Laboratory of Otology, Jinan 250021, China
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Zhang XB, Yin YF, Yao HM, Han YH, Wang N, Ge ZL. [Finite element analysis of different load mode on tooth movement for space closure in patient with bimaxillary protrusion]. Zhonghua Kou Qiang Yi Xue Za Zhi 2016; 51:415-419. [PMID: 27480432 DOI: 10.3760/cma.j.issn.1002-0098.2016.07.008] [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: 06/06/2023]
Abstract
OBJECTIVE To investigate the stress distribution on the maxillary anterior teeth retracted with sliding mechanics and micro-implant anchorage using different retraction hook heights and positions. METHODS DICOM image data including maxilla and upper teeth were obtained with cone-beam CT. The three-dimensional finite element model was constructed using Mimics software. Brackets and archwire model were constructed using Creo software. The models were instantiated using Pro/Engineer software. Abaqus software was used to simulate the sliding mechanics by loading 2 N force on 0, 2, 4, 6, 8, 10 mm retraction hooks and three different positions, repectively. Rotation of the occlusal plane, the initial displacement and stress distribution of teeth were analyzed. RESULTS Lingual rotation of maxillary central incisor(0.021°), gingival movement of the maxillary first molar(0.005 mm), and clockwise rotation of the maxillary occlusal plane(0.012°) were observed when the force application point located at the archwire level (0 mm). In contrast, 0.235° labial rotation of the maxillary central incisor, 0.015 mm occlusal movement of the maxillary first molar, and 0.075° anti-clockwise rotation of the maxillary occlusal plane were observed when the force application point located at the higher level(10 mm retraction hook). The more the force application point was located posteriorly at the archwire level, the less lingual rotation of the maxillary central incisor and the more buccal displacement of maxillary first molar was observed. CONCLUSIONS Maxillary anterior tooth rotation and retraction, vertical displacement of posterior segment, and rotation of the occlusal plane could be controlled by adjusting the height and position of the retraction hook in space closure using miniscrew and sliding mechanics.
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Affiliation(s)
- X B Zhang
- Department of Orthodontics, School of Stomatology Lanzhou University, Lanzhou 730030, China
| | - Y F Yin
- Department of Orthodontics, School of Stomatology Lanzhou University, Lanzhou 730030, China
| | - H M Yao
- Department of Orthodontics, School of Stomatology Lanzhou University, Lanzhou 730030, China
| | - Y H Han
- Department of Stomatology, Jiuquan City People's Hospital, Jiuquan Gansu 735000, China
| | - N Wang
- Department of Orthodontics, School of Stomatology Lanzhou University, Lanzhou 730030, China
| | - Z L Ge
- Department of Orthodontics, School of Stomatology Lanzhou University, Lanzhou 730030, China
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Chong A, Ha JM, Han YH, Kong E, Choi Y, Hong KH, Park JH, Kim SH, Park JM. Preoperative Lymph Node Staging by FDG PET/CT With Contrast Enhancement for Thyroid Cancer: A Multicenter Study and Comparison With Neck CT. Clin Exp Otorhinolaryngol 2016; 10:121-128. [PMID: 27334517 PMCID: PMC5327587 DOI: 10.21053/ceo.2015.01424] [Citation(s) in RCA: 32] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 12/31/2015] [Accepted: 03/11/2016] [Indexed: 11/30/2022] Open
Abstract
Objectives The purpose of this study was to compare lymph node (LN) staging using 18F-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) with contrast-enhancement (CE) PET/CT and contrast-enhanced neck CT (neck CT) in patients with thyroid cancer with level-by-level comparison with various factors. Methods This was a retrospective multicenter study. A total of 85 patients were enrolled. Patients who underwent a preoperative evaluation by CE PET/CT and neck CT for thyroid cancer were enrolled. The gold standard for LN was the combination of surgical pathology and clinical follow-up. We compared CE PET/CT with neck CT using a level-by-level method. Factors, including age, sex, camera, arm position, tumor size, extra-thyroidal extension, tumor location, number of primary tumors, primary tumor maximum standardized uptake value, and the interval from scan to operation were also analyzed. Results Overall accuracy was 81.2% for CE PET/CT and 68.2% for neck CT. CE PET/CT was more sensitive than neck CT (65.8% vs. 44.7%). Also, CE PET/CT showed higher negative predictive value (77.2% vs. 66.1%). CE PET/CT showed good agreement with the gold standard (weighted kappa [κ], 0.7) for differentiating N0, N1a, and N1b, whereas neck CT showed moderate agreement (weighted κ, 0.5). CE PET/CT showed better agreement for the number of levels involved with the gold standard (weighted κ, 0.7) than that of neck CT with the gold standard (weighted κ, 0.5). The accuracies for differentiating N0, N1a, and N1b were 81.2% for CE PET/CT and 68.2% for neck CT. Level-by-level analysis showed that CE PET/CT was more sensitive and has higher negative predictive value for detecting ipsilateral level IV and level VI LNs than neck CT. Other analyzed factors were not related to accuracies of both modalities. Conclusion CE PET/CT was more sensitive and reliable than neck CT for preoperative LN staging in patients with thyroid cancer.
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Affiliation(s)
- Ari Chong
- Department of Nuclear Medicine, Chosun University Hospital, Gwangju, Korea
| | - Jung-Min Ha
- Department of Nuclear Medicine, Chosun University Hospital, Gwangju, Korea
| | - Yeon-Hee Han
- Department of Nuclear Medicine, Chonbuk National University Hospital, Jeonju, Korea
| | - Eunjung Kong
- Department of Nuclear Medicine, Yeungnam University Medical Center, Daegu, Korea
| | - Yunjung Choi
- Department of Nuclear Medicine, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Ki Hwan Hong
- Department of Otolaryngology-Head and Neck Surgery, Research Institute of Clinical Medicine, Chonbuk National University Hospital, Chonbuk National University Medical School, Jeonju, Korea
| | - Jun-Hee Park
- Department of Otolaryngology-Head and Neck Surgery, Chosun University College of Medicine, Gwangju, Korea
| | - Sung Hoon Kim
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jung Mi Park
- Department of Nuclear Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
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Han YH, Lim ST, Jeong HJ, Sohn MH. Clinical Value of a One-Stop-Shop Low-Dose Lung Screening Combined with (18)F-FDG PET/CT for the Detection of Metastatic Lung Nodules from Colorectal Cancer. Nucl Med Mol Imaging 2016; 50:144-9. [PMID: 27275363 DOI: 10.1007/s13139-015-0387-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 09/20/2015] [Revised: 11/17/2015] [Accepted: 12/01/2015] [Indexed: 02/07/2023] Open
Abstract
PURPOSE The aim of this study was to evaluate the clinical usefulness of additional low-dose high-resolution lung computed tomography (LD-HRCT) combined with (18)F-fluoro-2-deoxyglucose positron emission tomography with CT ((18)F-FDG PET/CT) compared with conventional lung setting image of (18)F-FDG PET/CT for the detection of metastatic lung nodules from colorectal cancer. METHODS From January 2011 to September 2011, 649 patients with colorectal cancer underwent additional LD-HRCT at maximum inspiration combined with (18)F-FDG PET/CT. Forty-five patients were finally diagnosed to have lung metastasis based on histopathologic study or clinical follow-up. Twenty-five of the 45 patients had ≤5 metastatic lung nodules and the other 20 patients had >5 metastatic nodules. One hundred and twenty nodules in the 25 patients with ≤5 nodules were evaluated by conventional lung setting image of (18)F-FDG PET/CT and by additional LD-HRCT respectively. Sensitivities, specificities, diagnostic accuracies, positive predictive values (PPVs), and negative predictive values (NPVs) of conventional lung setting image of (18)F-FDG PET/CT and additional LD-HRCT were calculated using standard formulae. The McNemar test and receiver-operating characteristic (ROC) analysis were performed. RESULTS Of the 120 nodules in the 25 patients with ≤5 metastatic lung nodules, 66 nodules were diagnosed as metastatic. Eleven of the 66 nodules were confirmed histopathologically and the others were diagnosed by clinical follow-up. Conventional lung setting image of (18)F-FDG PET/CT detected 40 of the 66 nodules and additional LD-HRCT detected 55 nodules. All 15 nodules missed by conventional lung setting imaging but detected by additional LD-HRCT were <1 cm in size. The sensitivity, specificity, and diagnostic accuracy of the modalities were 60.6 %, 85.2 %, and 71.1 % for conventional lung setting image and 83.3 %, 88.9 %, and 85.8 % for additional LD-HRCT. By ROC analysis, the area under the ROC curve (AUC) of conventional lung setting image and additional LD-HRCT were 0.712 and 0.827 respectively. CONCLUSION Additional LD-HRCT with maximum inspiration was superior to conventional lung setting image of (18)F-FDG PET/CT for the detection of metastatic lung nodules from colorectal cancer (P < 0.05).
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Affiliation(s)
- Yeon-Hee Han
- Department of Nuclear Medicine, Research Institute of Clinical Medicine, Chonbuk National University-Biomedical Research Institute, Chonbuk National University Hospital, Cyclotron Research Center, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Jeonju, Jeonbuk Republic of Korea
| | - Seok Tae Lim
- Department of Nuclear Medicine, Research Institute of Clinical Medicine, Chonbuk National University-Biomedical Research Institute, Chonbuk National University Hospital, Cyclotron Research Center, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Jeonju, Jeonbuk Republic of Korea
| | - Hwan-Jeong Jeong
- Department of Nuclear Medicine, Research Institute of Clinical Medicine, Chonbuk National University-Biomedical Research Institute, Chonbuk National University Hospital, Cyclotron Research Center, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Jeonju, Jeonbuk Republic of Korea
| | - Myung-Hee Sohn
- Department of Nuclear Medicine, Research Institute of Clinical Medicine, Chonbuk National University-Biomedical Research Institute, Chonbuk National University Hospital, Cyclotron Research Center, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Jeonju, Jeonbuk Republic of Korea
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Han YH, Moon EH, Kim J, Jeong HJ, Sohn MH, Lim ST. Characterization of malignant ovarian mass on [18F]FDG PET/CT: using metabolic indices and degree of solidity. Q J Nucl Med Mol Imaging 2016; 63:76-82. [PMID: 27050153 DOI: 10.23736/s1824-4785.16.02863-6] [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] [Indexed: 11/08/2022]
Abstract
BACKGROUND The utility of [18F]FDG PET/CT for characterizing malignant ovarian mass has not been extensively studied. Here, we investigated various parameters that could be useful to differentiate malignant ovarian mass. METHODS We enrolled 51 female patients (53.4±15.0 years), with 86 ovarian masses, who underwent pretreatment [18F]FDG PET/CT. Thirty six lesions were histopathologically confirmed with ovarian serous adenocarcinoma. Thirty one ovarian masses from gastric cancer and 19 masses from colorectal cancer were diagnosed by histopathological study or clinical follow-up. Ovarian masses were evaluated by size, solidity, and metabolic indices. The degree of solidity was scored from 1 to 5 according to the portion of solid and cyst. Metabolic activity was scored to be either positive (≥ liver) or negative (< liver). SUVmax (SUVovary) and the ratio of SUVmax of ovary to SUVmean of the liver (ovary/L ratio) were performed. Age, bilaterality and level of CA 125 were also compared. In statistical analysis, categorical variables were analyzed using Pearson's chi-square test, while continuous variables were evaluated either independent student's t-test or Mann-Whitney Test. Receiveroperating-characteristic analysis was used to obtain optimal cutoff values. RESULTS Serous adenocarcinoma had significantly higher score in all metabolic indices over metastasis. However, there were no differences in all metabolic indices in ovarian metastasis. In contrast, solidity was different between metastatic mass from gastric and colorectal cancer. Ovarian metastasis from gastric cancer was significantly solid compared with that from colorectal cancer. In comparison of all three masses, solidity and all metabolic indices were significantly different. Patients with serous adenocarcinoma were older and had higher CA-125 level. Between metastases from gastric and colorectal cancer, there were no differences in age, bilaterality and CA-125. CONCLUSIONS Metabolic indices such as SUVovary and ovary/L ratio could be useful to differentiate serous adenocarcinoma from metastasis. Furthermore, the degree of solidity could play a role in predicting the origin of metastasis.
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Affiliation(s)
- Yeon-Hee Han
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Chonbuk National University, Chonbuk National University Medical School and Hospital, Jeonju, South Korea
| | - Eun-Ha Moon
- Department of Nuclear Medicine, Presbyterian Medical Center, Jeonju, South Korea
| | - Jeonghun Kim
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Chonbuk National University, Chonbuk National University Medical School and Hospital, Jeonju, South Korea
| | - Hwan-Jeong Jeong
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Chonbuk National University, Chonbuk National University Medical School and Hospital, Jeonju, South Korea
| | - Myung-Hee Sohn
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Chonbuk National University, Chonbuk National University Medical School and Hospital, Jeonju, South Korea
| | - Seok-Tae Lim
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Chonbuk National University, Chonbuk National University Medical School and Hospital, Jeonju, South Korea -
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Han YH, Jeong HJ, Sohn MH, Lim ST. Clinical value of intratumoral metabolic heterogeneity in [18F]FDG PET/CT for prediction of recurrence in patients with locally advanced colorectal cancer. Q J Nucl Med Mol Imaging 2016; 62:445-452. [PMID: 27045576 DOI: 10.23736/s1824-4785.16.02862-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND The aim of this study was to find a reliable predictor of recurrence in patients with locally advanced colorectal cancer. METHODS We enrolled 96 patients for this retrospective study. We investigated metabolic (SUVmax, metabolic tumor volume, total lesion glycolysis, and heterogeneity), clinical (age, sex, stage, and CEA level) and pathologic (Ki-67, p53, CD31, COX-2, E-cadherin and EGFR) parameters. The coefficient of variation (COV) was chosen to assess heterogeneity of [18F]FDG uptake by dividing the standard deviation of the SUV by SUVmean. Recurrence-free survival was compared with each metabolic, clinical and pathologic parameters by using univariate and multivariate survival analysis. RESULTS Among 96 patients, 19 patients (19.8%) showed disease recurrence. In the ROC analysis, the optimal cutoff values of SUVmax, metabolic tumor volume (cm3), total lesion glycolysis (cm3), and metabolic heterogeneity were determined as 17.6, 10.05, 232.46, and 0.48, respectively. In univariate analysis, probability of recurrence was statistically increased in those with metabolic tumor volume >10.05 (P=0.045), and those with metabolic heterogeneity >0.48 (P=0.031). In multivariate analysis, metabolic heterogeneity was the only independent prognostic factor (HR 4.56, 95% CI 1.57-13.23, P=0.006). CONCLUSIONS Intratumoral metabolic heterogeneity assessed by COV is a reliable predictive factor for disease recurrence in patients with locally advanced colorectal cancer. Therefore, its application could be an important step for personalized management of colorectal cancer.
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Affiliation(s)
- Yeon-Hee Han
- Department of Nuclear Medicine, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Hospital, Jeonju, South Korea
| | - Hwan-Jeong Jeong
- Department of Nuclear Medicine, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Hospital, Jeonju, South Korea
| | - Myung-Hee Sohn
- Department of Nuclear Medicine, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Hospital, Jeonju, South Korea
| | - Seok T Lim
- Department of Nuclear Medicine, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Hospital, Jeonju, South Korea -
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Ren XY, Zhang LS, Han YH, An T, Liu Y, Li YY, Chen HY. Proteomic research on diapause-related proteins in the female ladybird, Coccinella septempunctata L. Bull Entomol Res 2016; 106:168-174. [PMID: 26603522 DOI: 10.1017/s0007485315000954] [Citation(s) in RCA: 11] [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] [Indexed: 06/05/2023]
Abstract
In the experiments reported here, we used the female ladybird Coccinella septempunctata L. as a model to identify diapause-associated proteins using proteomics technology. Our results indicated that protein expression patterns of diapausing and nondiapausing individuals were highly differentiated. A total of 58 spots showed significant differences in abundance (Ratio > 2 and P < 0.05) according to two-dimensional electrophoresis and GE Image Scanner III analysis. Sixteen protein spots were further investigated using mass spectrometry. Eight proteins were characterized, including chaperones and proteins involved in glucose metabolism, lipid metabolism, and the tricarboxylic acid cycle. Among these proteins, five proteins were upregulated in diapausing female adults, including a chaperone (Symbionin symL), malate dehydrogenase (putative), two proteins linked to lipid metabolism (unknown and conserved hypothetical protein) and phosphoglyceromutase (partial). By contrast, isocitrate dehydrogenase (RH49423p), fumarylacetoacetate hydrolase (AGAP001942-PA), and a putative medium chain acyl-CoA dehydrogenase were downregulated. These results contribute to the understanding of diapause mechanisms of the ladybird C. septempunctata and may suggest methods for improving the application of this natural enemy insect.
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Affiliation(s)
- X Y Ren
- State Key Laboratory for Biology of Plant Diseases and Insect Pests,Institute of Plant Protection,Chinese Academy of Agricultural Sciences;Sino-American Biological Control Laboratory,USDA-ARS,Beijing 100081,P.R. China
| | - L S Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests,Institute of Plant Protection,Chinese Academy of Agricultural Sciences;Sino-American Biological Control Laboratory,USDA-ARS,Beijing 100081,P.R. China
| | - Y H Han
- State Key Laboratory for Biology of Plant Diseases and Insect Pests,Institute of Plant Protection,Chinese Academy of Agricultural Sciences;Sino-American Biological Control Laboratory,USDA-ARS,Beijing 100081,P.R. China
| | - T An
- State Key Laboratory for Biology of Plant Diseases and Insect Pests,Institute of Plant Protection,Chinese Academy of Agricultural Sciences;Sino-American Biological Control Laboratory,USDA-ARS,Beijing 100081,P.R. China
| | - Y Liu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests,Institute of Plant Protection,Chinese Academy of Agricultural Sciences;Sino-American Biological Control Laboratory,USDA-ARS,Beijing 100081,P.R. China
| | - Y Y Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests,Institute of Plant Protection,Chinese Academy of Agricultural Sciences;Sino-American Biological Control Laboratory,USDA-ARS,Beijing 100081,P.R. China
| | - H Y Chen
- State Key Laboratory for Biology of Plant Diseases and Insect Pests,Institute of Plant Protection,Chinese Academy of Agricultural Sciences;Sino-American Biological Control Laboratory,USDA-ARS,Beijing 100081,P.R. China
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Abstract
We conducted a case-control study to investigate the influence of IL6 -174G/C (rs1800795) and -572C/G (rs1800796) genetic variants on the development of cerebral thrombosis in a Chinese population. This study included 305 cerebral infarction patients and 326 control subjects enrolled between May 2012 and May 2014. The genotyping of IL6 -174G/C (rs1800795) and -572C/G (rs1800796) polymorphisms was performed using polymerase chain reaction combined with restriction fragment length polymorphism analysis. By using logistic regression, we found that when compared with the wild-type genotype, CC and GC+CC IL6 -174G/C (rs1800795) genotypes were associated with an increased risk of cerebral infarction. Odds ratios (and 95% confidence intervals) were calculated to be 3.10 (1.57-6.41) and 1.63 (1.14-2.33) for the CC and GC+CC genotypes, respectively. In conclusion, our study suggests that the CC genotype and C allele of the IL6 -174G/C (rs1800795) polymorphism are associated with an increased risk of cerebral infarction.
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Affiliation(s)
- Y H Han
- Department of Neurology II, Xinxiang Central Hospital, Xinxiang, Henan, China
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Han YH, Kwon SY, Kim J, Na CJ, Choi S, Min JJ, Bom HS, Kim YC, Oh IJ, Chae HJ, Lim ST, Sohn MH, Jeong HJ. A phase II clinical trial to investigate the effect of pioglitazone on (18)F-FDG uptake in malignant lesions. EJNMMI Res 2015; 5:50. [PMID: 26408008 PMCID: PMC4583556 DOI: 10.1186/s13550-015-0128-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 05/26/2015] [Accepted: 09/13/2015] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND We found that (18)F-2-fluoro-2-deoxy-D-glucose ((18)F-FDG) uptake in malignant lesion was enhanced, and it was decreased in the inflammatory lesion after the use of peroxisome proliferator activated receptor-γ (PPAR-γ) agonist in our previous preclinical study. The purpose of this study was to investigate the effect of PPAR-γ agonist on malignant lesions in clinical (18)F-FDG positron emission tomography/computed tomography (PET/CT) imaging. METHODS Forty-three patients were enrolled in this prospective study. We received the approval for the investigator-initiated trials for a phase II human clinical trial from the Korean Food and Drug Administration. On the first day, (18)F-FDG PET/CT images were acquired from patients without administration of pioglitazone (PIO), which is a PPAR-γ agonist. On the next day, (18)F-FDG PET/CT images were acquired once again from the same patients after administration of PIO. We measured the (18)F-FDG uptake in malignant lesions or inflammatory lesions from two (18)F-FDG PET/CT images. Four different PET parameters were used to compare between the two studies: SUVmax, SUVmean, average activity over 30 % of the isocontour (isocontour, Bq/mL), and isocontour-mediastinal activity (Bq/mL). Additionally, we classified the patients into two groups: the responder or non-responder group according to the presence of PIO effect on skeletal muscle. Furthermore, PET parameters of malignant lesions were analyzed based on the type of malignancy and were compared with those of inflammatory lesions. RESULTS All four PET parameters of malignant lesions in the responder group showed increasing patterns after the use of PIO. In the subgroup analysis, the similar pattern was observed in gastrointestinal cancer. In hepatobiliary and pancreatic cancer, SUVmean and isocontour showed statistically significant increase in the presence of PIO. On the other hand, in the non-responder group, all four PET parameters showed decreasing patterns in both malignant and inflammatory lesions after the use of PIO. There was no statistically significant difference in PET parameters of malignant lesions in the non-responder group. CONCLUSIONS In this study, we found that PIO had the potential to increase (18)F-FDG uptake of malignant lesions in the patients who showed PIO effect on skeletal muscle. Contrary to our preclinical studies, clinical results had limitations to evaluate malignant lesions in non-responder group. Further larger-scale studies are necessary to elucidate the potential role of PIO on (18)F-FDG uptake in malignant or inflammatory lesions. TRIAL REGISTRATION The test for safety and effectiveness of the new efficacy of Pioglitazone to diagnose the malignant tumor and inflammation in F-18 FDG positron emission tomography (PET) study, 12029.
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Affiliation(s)
- Yeon-Hee Han
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Cyclotron Research Center, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, Republic of Korea.
| | - Seong Young Kwon
- Department of Nuclear Medicine, Chonnam National University Hwasun Hospital, Hwasun-gun, Jeonnam, Republic of Korea.
| | - Jeonghun Kim
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Cyclotron Research Center, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, Republic of Korea.
| | - Chang Ju Na
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Cyclotron Research Center, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, Republic of Korea.
| | - Sehun Choi
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Cyclotron Research Center, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, Republic of Korea.
| | - Jung-Joon Min
- Department of Nuclear Medicine, Chonnam National University Hwasun Hospital, Hwasun-gun, Jeonnam, Republic of Korea.
| | - Hee-Seung Bom
- Department of Nuclear Medicine, Chonnam National University Hwasun Hospital, Hwasun-gun, Jeonnam, Republic of Korea.
| | - Young-Chul Kim
- Lung and Esophageal Cancer Clinic, Chonnam National University Hwasun Hospital, Hwasun-gun, Jeonnam, Republic of Korea.
| | - In-Jae Oh
- Lung and Esophageal Cancer Clinic, Chonnam National University Hwasun Hospital, Hwasun-gun, Jeonnam, Republic of Korea.
| | - Han-Jung Chae
- Department of Pharmacology, Chonbuk National University Medical School, Jeonju, Jeonbuk, Republic of Korea.
| | - Seok Tae Lim
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Cyclotron Research Center, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, Republic of Korea.
| | - Myung-Hee Sohn
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Cyclotron Research Center, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, Republic of Korea.
| | - Hwan-Jeong Jeong
- Department of Nuclear Medicine, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Cyclotron Research Center, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, Republic of Korea.
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Choi S, Na CJ, Kim J, Han YH, Kim HK, Jeong HJ, Sohn MH, Lim ST. Comparison of Therapeutic Efficacy and Clinical Parameters Between Recombinant Human Thyroid Stimulating Hormone and Thyroid Hormone Withdrawal in High-Dose Radioiodine Treatment with Differentiated Thyroid Cancer. Nucl Med Mol Imaging 2015; 49:115-21. [PMID: 26085856 PMCID: PMC4463877 DOI: 10.1007/s13139-014-0308-y] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Revised: 11/10/2014] [Accepted: 11/11/2014] [Indexed: 10/24/2022] Open
Abstract
PURPOSE High-dose radioiodine treatment (HD-RIT) after injection of recombinant human thyroid stimulating hormone (rh-TSH) has become widely used. This study compared the therapeutic efficacy of HD-RIT and clinical parameters between rh-TSH supplement and thyroid hormone withdrawal (THW) after total thyroidectomy in patients with differentiated thyroid cancer. METHODS We retrospectively reviewed 266 patients (47 male and 219 female; age, 49.0 ± 10.9 years) with differentiated thyroid cancer detected from September 2011 to September 2012. Patients comprised THW (217, 81.6 %) and rh-TSH (49, 18.4 %). Inclusion criteria were: first HD-RIT; any TN stage; absence of distant metastasis. To evaluate the complete ablation of the remnant thyroid tissue or metastasis, we reviewed stimulated serum thyroglobulin (sTg), I-123 whole-body scan (RxWBS) on T4 off-state, and thyroid ultrasonography (US) or [F-18]-fluorodeoxyglucose positron emission tomography/computed tomography (F-18 FDG PET/CT) 6-8 months after HD-RIT. We defined a complete ablation state when all three of the follow-up conditions were satisfied; <2.0 ng/ml of the sTg, I-123 RxWBS (-), and thyroid US or F-18 FDG PET/CT (-). If one of the three was positive, ablation was considered incomplete. We also compared various clinical biomarkers (body weight, body mass index, liver and kidney function) between THW and rh-TSH groups. RESULTS The rates of complete ablation were 73.7 % (160/217) for the THW group and 73.5 % (36/49) for the rh-TSH group. There was no significant difference between the two groups (p = 0.970). The follow-up aspartate transaminase (p = 0.001) and alanine transaminase (p = 0.001) were significantly higher in the THW group. The renal function parameters of blood urea nitrogen (p = 0.001) and creatinine (p = 0.005) tended to increase in the THW group. The change of body weight was + Δ0.96 (±1.9) kg for the THW group and was decreased by -Δ1.39 (±1.5) kg for the rh-TSH group. The change of body mass index was 0.4 (±0.7) kg/m(2) in the THW group and was decreased by -0.6 (±0.6) kg/m(2) in the rh-TSH group. CONCLUSIONS Consistent with previous studies, the rates of complete ablation between the THW and rh-TSH groups were not significantly different. The clinical parameters, as we mentioned above, were elevated for THW group but were irrelevant for the rh-TSH group. The findings favor HD-RIT after rh-TSH, especially for patients with chronic liver and kidney disease.
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Affiliation(s)
- Sehun Choi
- />Department of Nuclear Medicine, Chonbuk National University Medical School and Hospital, Jeonju, Republic of Korea
| | - Chang Ju Na
- />Department of Nuclear Medicine, Chonbuk National University Medical School and Hospital, Jeonju, Republic of Korea
| | - Jeonghun Kim
- />Department of Nuclear Medicine, Chonbuk National University Medical School and Hospital, Jeonju, Republic of Korea
| | - Yeon-Hee Han
- />Department of Nuclear Medicine, Chonbuk National University Medical School and Hospital, Jeonju, Republic of Korea
| | - Hee-Kwon Kim
- />Department of Nuclear Medicine, Chonbuk National University Medical School and Hospital, Jeonju, Republic of Korea
- />Department of Nuclear Medicine, Research Institute of Clinical Medicine, Cyclotron Research Center, Molecular Imaging & Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Gungiro, Deokjin-gu, Jeonju, Jeonbuk 561-180 Republic of Korea
| | - Hwan-Jeong Jeong
- />Department of Nuclear Medicine, Chonbuk National University Medical School and Hospital, Jeonju, Republic of Korea
- />Department of Nuclear Medicine, Research Institute of Clinical Medicine, Cyclotron Research Center, Molecular Imaging & Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Gungiro, Deokjin-gu, Jeonju, Jeonbuk 561-180 Republic of Korea
| | - Myung-Hee Sohn
- />Department of Nuclear Medicine, Chonbuk National University Medical School and Hospital, Jeonju, Republic of Korea
- />Department of Nuclear Medicine, Research Institute of Clinical Medicine, Cyclotron Research Center, Molecular Imaging & Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Gungiro, Deokjin-gu, Jeonju, Jeonbuk 561-180 Republic of Korea
| | - Seok Tae Lim
- />Department of Nuclear Medicine, Chonbuk National University Medical School and Hospital, Jeonju, Republic of Korea
- />Department of Nuclear Medicine, Research Institute of Clinical Medicine, Cyclotron Research Center, Molecular Imaging & Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Gungiro, Deokjin-gu, Jeonju, Jeonbuk 561-180 Republic of Korea
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Li J, Zhang Y, Xu KC, Yang JY, Han YH, Sun YX, Huang Q. First Report of Wilt of Eucalyptus Caused by Ceratocystis fimbriata in China. Plant Dis 2014; 98:1744. [PMID: 30703923 DOI: 10.1094/pdis-06-14-0580-pdn] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Eucalyptus spp., most of which are native to Australia, are one of the world's most commonly planted forestry crops, and have been widely planted in the tropics and subtropics. Eucalyptus trees are distributed in more than 600 counties in 19 provinces/regions throughout China, especially in the southern regions of the country (1). From April of 2013 to May of 2014, eucalyptus trees were noted to be wilting and dying rapidly in Kunming, Yunnan Province (25°02' N, 102°42' E), southwest China. Symptomatic trees typically have many wilted or dead leaves hanging throughout the tree or on some major branches, sometimes followed by death of the whole tree. Dark brown to black discoloration can be seen in the woody xylem, and elongated cankers were also present on some affected trees. A fungus was consistently isolated from the leaves and cankers when symptomatic tissue was incubated between two slices of fresh carrot root. Spore masses were removed from the apices of perithecia, transferred to malt extract agar medium (MEA), and incubated at 25°C. Perithecia developed on the medium, and were black, globose, 212.5 to 242.4 × 207.5 to 254.2 μm, and possessed a long black neck (952.3 to 1,303.3 μm). Ascospores had the typical "hat" morphology and were 4.3 to 5.2 × 3.0 to 3.8 μm. Cylindrical endoconidia (11.2 to 22.2 × 3.9 to 6.1 μm) were found. Chlamydospores produced on media were ovoid and smooth, and were 7.8 to 9.7 × 9.9 to 12.8 μm. Chains of barrel-shaped conidia were not found. PCR amplification and sequencing of the ITS region of rDNA were carried out for one isolate, E2-2, using the procedures of Thorpe et al. (3). Analysis of ITS sequence data (GenBank Accession No. KJ511481) showed that the isolates were 99% homologous to the isolate of C. fimbriata from diseased Colocasia esculenta in Cuba, China, and Hawaii (AY526304 to 06) by BLAST analysis. Thus, the fungus was identified as C. fimbriata based on morphological and molecular characteristics. Pathogenicity tests were made on 1-year-old E. grandis seedlings as follows. A conidial suspension of each isolate was diluted to 106 conidia/ml, and 0.2 ml was injected into wounds on three petioles on each of five healthy plants of E. grandis, and control seedlings were injected with sterile water that had been placed on MEA plates. The seedlings were incubated at 25°C in moist chambers. After 3 days, all inoculated E. grandis plants showed dark brown to black discoloration in the leaf axils. After 5 days, leaf wilting was present. C. fimbriata was re-isolated from all inoculated symptomatic tissue. No symptoms were visible in the control plants and no fungus was isolated from them. Ceratocystis wilt was first observed in eucalyptus in 1997 in the state of Bahia. This was followed by a report of C. fimbriata causing wilt of E. grandis in the Republic of Congo, Uganda, and Uruguay (2). Chen et al. reported two species of Ceratocystis, C. acaciivora and a previously undescribed species C. chinaeucensis, from eucalyptus plantations in Guangdong Province in China (1). To our knowledge, this is the first report of C. fimbriata causing wilt of eucalyptus in China. References: (1) S. F. Chen et al. Fungal Diversity 58:267, 2011. (2) F. A. Ferreira et al. Fitopatol. Bras. 24:284, 1999. (3) D. J. Thorpe et al. Phytopathology 95:316, 2005.
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Affiliation(s)
- J Li
- College of Plant Protection, Yunnan Agricultural University, Kunming, 650201, Yunnan, China. This work was supported by National Natural Science Foundation of China (No. 31270067)
| | - Y Zhang
- College of Plant Protection, Yunnan Agricultural University, Kunming, 650201, Yunnan, China. This work was supported by National Natural Science Foundation of China (No. 31270067)
| | - K C Xu
- College of Plant Protection, Yunnan Agricultural University, Kunming, 650201, Yunnan, China. This work was supported by National Natural Science Foundation of China (No. 31270067)
| | - J Y Yang
- College of Plant Protection, Yunnan Agricultural University, Kunming, 650201, Yunnan, China. This work was supported by National Natural Science Foundation of China (No. 31270067)
| | - Y H Han
- College of Plant Protection, Yunnan Agricultural University, Kunming, 650201, Yunnan, China. This work was supported by National Natural Science Foundation of China (No. 31270067)
| | - Y X Sun
- College of Plant Protection, Yunnan Agricultural University, Kunming, 650201, Yunnan, China. This work was supported by National Natural Science Foundation of China (No. 31270067)
| | - Q Huang
- College of Plant Protection, Yunnan Agricultural University, Kunming, 650201, Yunnan, China. This work was supported by National Natural Science Foundation of China (No. 31270067)
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Abstract
The loquat (Eriobotrya japonica (Thunb.) Lindl.), an important perennial evergreen fruit crop that originated in China and is also cultivated as an ornamental plant, is well known all over the world for high nutritional, medicinal, economic, and ecological values (4). So far, it has been grown in more than 30 countries (1) and is becoming an important industry in China, Spain, Japan, India, Pakistan, and Turkey (2). During an investigation from May to August of 2013, severely withered loquat plants were observed in Kunming city of Yunnan Province (25°02' N; 102°42' E), Southwest China. Initial symptoms were brown lesions of leaves and canker on one to several branches, leaves of the whole tree turned wilted. Cross sections of diseased plants revealed irregularly shaped brown discoloration in the xylem of the trunk. A fungus was consistently isolated from the leaf when diseased leaves were incubated between two slices of fresh carrot root. Spore masses were picked from the apices of perithecia and transferred to malt extract agar medium (MEA) and incubated at 25°C. After perithecium formation, observed perithecia were black, globose (176.0 to 303.2 × 186.0 to 274.3 μm) and showed a long black neck (634.2 to 809.9 μm). Ascospore had the typical format of a "hat" with dimensions of 4.6 to 6.3 × 3.3 to 4.8 μm. Cylindrical endoconidia (7.1 to 36.1 × 2.9 to 6.0 μm) were found. Chlamydospores were ovoid or obpyriform and smooth (8.6 to 12.1 × 6.9 to 12.1 μm). PCR amplification was carried out for one isolate, YT2. The ITS region of rDNA was sequenced using the procedures of Thorpe et al (3). Analysis of ITS sequence data (GenBank Accession Nos. KF963101 and KF963102) showed that the isolates were 99% homologous to the isolate of Ceratocystis fimbriata from diseased Colocasia esculenta in Cuba, China, and Hawaii (AY526304 to 06) by BLAST analysis. Therefore, the fungus was identified as C. fimbriata based on morphological and molecular characteristics. Pathogenicity of the six isolates from this study was tested by inoculation of 1-year-old pot grown seedlings of loquat. The soil of six plants was inoculated by drenching with 40 ml spore suspension (106 spores/ml). Control plants were inoculated with 40 ml of sterile distilled water. The plants were maintained in a controlled greenhouse at 25°C and watered weekly. After inoculation for 1 week, all plants produced wilt symptoms; as the disease progressed, leaves withered and died after 3 weeks of inoculation while control plants remained symptomless. C. fimbriata was successfully re-isolated from the infected trees and no fungal growth was observed in the controls. The pathogenicity assay showed that C. fimbriata was pathogenic to loquat. To our knowledge, this is the first report of C. fimbriata causing wilt of loquat in China. Since C. fimbriata is one of the most aggressive plant pathogens on a wide variety of perennial as well as agronomic crop plants worldwide, and the infection can pose a significant threat to the production of loquat, it is critical to deploy appropriate management strategies to limit the fungus spread. References: (1) J. J. Feng et al. Acta Hort. 750:117, 2007. (2) J. Janick. Acta Hort. 750:27, 2007. (3) D. J. Thorpe et al. Phytopathology 95:316, 2005. (4) J. Yan et al. Pak. J. Bot. 44:1215, 2012.
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Affiliation(s)
- J Li
- College of Plant Protection, Yunnan Agricultural University, Kunming, 650201, Yunnan, China. This work was supported by National Natural Science Foundation of China (No. 31270067)
| | - J M Gao
- College of Plant Protection, Yunnan Agricultural University, Kunming, 650201, Yunnan, China. This work was supported by National Natural Science Foundation of China (No. 31270067)
| | - Y H Han
- College of Plant Protection, Yunnan Agricultural University, Kunming, 650201, Yunnan, China. This work was supported by National Natural Science Foundation of China (No. 31270067)
| | - Y X Sun
- College of Plant Protection, Yunnan Agricultural University, Kunming, 650201, Yunnan, China. This work was supported by National Natural Science Foundation of China (No. 31270067)
| | - Q Huang
- College of Plant Protection, Yunnan Agricultural University, Kunming, 650201, Yunnan, China. This work was supported by National Natural Science Foundation of China (No. 31270067)
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Jeong HJ, Lee DS, Lee HY, Choi S, Han YH, Chung JK. Prognostic Value of Normal Perfusion but Impaired Left Ventricular Function in the Diabetic Heart on Quantitative Gated Myocardial Perfusion SPECT. Nucl Med Mol Imaging 2014; 47:151-7. [PMID: 24900101 DOI: 10.1007/s13139-013-0213-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [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: 04/22/2013] [Revised: 06/17/2013] [Accepted: 06/18/2013] [Indexed: 11/29/2022] Open
Abstract
PURPOSE This study aimed at identifying the predictive parameters on quantitative gated myocardial perfusion single-photon emission computed tomography (QG-SPECT) in diabetic patients with normal perfusion but impaired function. METHODS Among the 533 consecutive diabetic patients, 379 patients with normal perfusion on rest Tl-201/dipyridamole-stress Tc-99m sestamibi Gated SPECT were enrolled. Patients were grouped into those with normal post-stress left ventricular function (Group I) and those with impaired function (EF <50 or impaired regional wall motion, Group II). We investigated cardiac events and cause of death by chart review and telephone interview. Survival analysis and Cox proportional hazard model analysis were performed. RESULTS Between the Group I and II, cardiac events as well as chest pain symptoms, smoking, diabetic complications were significantly different (P < 0.05). On survival analysis, event free survival rate in Group II was significantly lower than in Group I (P = 0.016). In univariate Cox proportional hazard analysis on overall cardiac event, Group (II over I), diabetic nephropathy, summed motion score (SMS), summed systolic thickening score (STS), numbers of abnormal segmental wall motion and systolic thickening predicted more cardiac events (P < 0.05). Multivariate analysis showed that STS was the only independent predictor cardiac event. CONCLUSION The functional parameter, especially summed systolic thickening score on QG-SPECT had prognostic values, despite normal perfusion, in predicting cardiac events in diabetic patients, and QG-SPECT provides clinically useful risk stratification in diabetic patients with normal perfusion.
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Affiliation(s)
- Hwan-Jeong Jeong
- Department of Nuclear Medicine, Research Institute of Clinical Medicine, Biomedical Research Institute of Chonbuk National University Medical School & Hospital, Jeonju, Jeollabuk-do Korea
| | - Dong Soo Lee
- Department of Nuclear Medicine, Seoul National University College of Medicine, 28 Yungun-dong Chongno-gu, Seoul, 110-744 Korea
| | - Ho-Young Lee
- Department of Nuclear Medicine, Seoul National University College of Medicine, 28 Yungun-dong Chongno-gu, Seoul, 110-744 Korea
| | - SeHun Choi
- Department of Nuclear Medicine, Research Institute of Clinical Medicine, Biomedical Research Institute of Chonbuk National University Medical School & Hospital, Jeonju, Jeollabuk-do Korea
| | - Yeon-Hee Han
- Department of Nuclear Medicine, Research Institute of Clinical Medicine, Biomedical Research Institute of Chonbuk National University Medical School & Hospital, Jeonju, Jeollabuk-do Korea
| | - June-Key Chung
- Department of Nuclear Medicine, Seoul National University College of Medicine, 28 Yungun-dong Chongno-gu, Seoul, 110-744 Korea
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Han YH, Wang HB, Troyan IA, Gao CX, Eremets MI. Pressure induced ionic-superionic transition in silver iodide at ambient temperature. J Chem Phys 2014; 140:044708. [PMID: 25669568 DOI: 10.1063/1.4862824] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Silver iodide (AgI-V) is an archetypical ionic compound for studying the formation mechanism of a superionic state. Previous studies have proven that superionic AgI with high ionic conductivity greater than 0.1 Ω(-1)cm(-1) could only be obtained at high temperatures. We show in this paper that high pressure could also induce the superionic state in AgI even at ambient temperature. Using electrochemical impedance spectroscopy, we investigated Ag(+) ions diffusing in rock-salt structured AgI-III and KOH-type AgI-V under high pressures and directly observed the superionic state in AgI-V. The diffusion coefficient of AgI-V is ∼3.4 × 10(-4)-8.6 × 10(-4) cm(2)/s in the investigated pressure range of 12-17 GPa, comparable with those of superionic α-AgI and AgI-III'. By analyzing the half infinite length Warburg diffusion process, two parameters α and β, which closely relate to the disordered state of Ag(+) ions, have been determined and it was suggested that Ag(+) ions in AgI-V become disordered. The ionic conductivity of AgI-V is three orders of magnitude higher than that of AgI-III, and has reached around 0.1 Ω(-1)cm(-1). Evidence for all three, the diffusion coefficient, α and β, and conductivity have proven that AgI-V is a superionic conductor at ambient temperature.
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Affiliation(s)
- Y H Han
- Biogeochemistry Department,Max Planck Institute for Chemistry, P.O. Box 3060, 55020 Mainz, Germany
| | - H B Wang
- Biogeochemistry Department,Max Planck Institute for Chemistry, P.O. Box 3060, 55020 Mainz, Germany
| | - I A Troyan
- Biogeochemistry Department,Max Planck Institute for Chemistry, P.O. Box 3060, 55020 Mainz, Germany
| | - C X Gao
- State Key Laboratory of Superhard Materials, Jilin University, 130021 Changchun, China
| | - M I Eremets
- Biogeochemistry Department,Max Planck Institute for Chemistry, P.O. Box 3060, 55020 Mainz, Germany
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Hou WJ, Guan JH, Dong Q, Han YH, Zhang R. Dexamethasone inhibits the effect of paclitaxel on human ovarian carcinoma xenografts in nude mice. Eur Rev Med Pharmacol Sci 2013; 17:2902-2908. [PMID: 24254559] [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: 06/02/2023]
Abstract
BACKGROUND Recent studies showed that dexamethasone (DEX) could render cancer cells resistant to paclitaxel (PTX) induced apoptosis though an unknown mechanism. AIM This study aimed to evaluate the influence of DEX pretreatment on the anti-tumor effect of PTX in an in vivo xenograft model with grafted ovarian cancer SKOV-3 cells innude mice. MATERIALS AND METHODS The xenograft procedure was performed, and the nude mice were grouped into four cohorts of ten that received the following treatments: Control group, DEX group, PTX group and DEX+PTX group. Individual treatments were administered once every three days for a total of 6 courses. The growth of tumors and the inhibition rates were measured. Changes in tissue morphology and cellular ultrastructure were observed using light and transmission electron microscopy. Immunohistochemistry was performed to examine the expression of Ki-67, Bcl-xL and cleaved caspase-3. RESULTS Premedication with DEX reduced the inhibitory effect of PTX on tumor growth by approximately 20% compared to the PTX-only-treated group in the ovarian carcinoma xeno-grafted mice. Hematoxylin-eosin (H&E) staining revealed that significantly fewer cells exhibited vacuolization and apoptosis in the DEX + PTX group compared to the PTX group. Apoptotic characteristics including karyopyknosis, nuclear chromatin condensation along the nuclear membrane and aggregation were observed in both DEX+PTX and PTX groups under electron microscopy. However, these characteristics were less significant in the DEX+PTX group than those in the PTX group. The immunohistochemistry demonstrated that protein expression levels of Ki-67 and Bcl-xL were significantly increased, whereas cleaved caspase-3 decreased in the DEX+PTX group, compared to PTX group (p < 0.0125). CONCLUSIONS DEX inhibits the therapeutic efficacy of PTX in a human ovarian carcinoma SKOV-3 xenograft model.
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Affiliation(s)
- W J Hou
- Department of Obstetrics and Gynecology, Shanghai Jiaotong University-Affiliated Sixth People's Hospital of Fengxian Branch, Shanghai, China.
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Li YX, Wang XG, Yang CH, Cong LL, Wu FF, Xue JG, Han YH. Identification of a locus characteristic of male individuals of buffalo grass [Buchloe dactyloides (Nutt.) Engelm.] by using an RAPD marker. Genet Mol Res 2013; 12:4070-7. [PMID: 24089096 DOI: 10.4238/2013.september.27.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Buffalo grass [Buchloe dactyloides (Nutt.) Engelm.] plants can be either male, female, or hermaphrodite (monoecious). As there is no morphological difference in the early vegetative growth of these three classes of plants, it is worthwhile to use molecular biological methods to attempt to identify the sex of a plant at this early growth period. In this study, we identified 23 plants that had a stable sex for over at least 3 years. Of these, 9 were male plants, 10 were female plants, and 4 were hermaphrodites. Screening of 300 RAPD primers identified a primer, namely S211 (5'-ttccccgcga-3'), which is capable of identifying male plants. The specific fragment was cloned, sequenced, and submitted to the GenBank database (accession No. JN982469). When used to identify the sex of 188 plants during their first growing season, the S211 primer correctly identified 85.8% of all male plants. Our results showed that the S211 primer can identify the male, and in doing so, it facilitates buffalo grass breeding work.
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Affiliation(s)
- Y X Li
- Department of Grassland Science, China Agricultural University, Beijing, China
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Song EK, Yim JM, Yim JY, Song MY, Rho HW, Yim SK, Han YH, Jeon SY, Kim HS, Yhim HY, Lee NR, Kwak JY, Sohn MH, Park HS, Jang KY, Yim CY. Glutamine protects mice from acute graft-versus-host disease (aGVHD). Biochem Biophys Res Commun 2013; 435:94-9. [DOI: 10.1016/j.bbrc.2013.04.047] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Accepted: 04/08/2013] [Indexed: 01/12/2023]
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Ye YW, Jiang ZM, Li WH, Li ZS, Han YH, Sun L, Wang Y, Xie J, Liu YC, Zhao J, Tang AF, Li XX, Guan ZC, Gui YT, Cai ZM. Down-regulation of TCF21 is associated with poor survival in clear cell renal cell carcinoma. Neoplasma 2013; 59:599-605. [PMID: 22862160 DOI: 10.4149/neo_2012_076] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Transcription factor 21 (TCF21) has been identified as a candidate tumor suppressor at 6q23-q24 that is epigenetically inactivated in many types of human cancers. We recently found that TCF21 methylation level was significantly increased in clear cell renal cell carcinoma (ccRCC). The purpose of this study was to investigate the prognostic impact of TCF21 expression in ccRCC and analyze the relationship between TCF21 expression and methylation level. We used real-time PCR and immunohistochemical staining to detect the expression of TCF21, and used methylation specific-PCR (MS-PCR) to determine the methylation status of TCF21 in ccRCC samples and cell line 786-O. The results showed that TCF21 expression level in ccRCC samples was significantly lower than in normal adjacent tissue samples (NAT samples). The Kaplan-Meier survival analysis demonstrated that TCF21 was a significant prognosticator of cancer-specific survival (p=0.001). Furthermore, the DNA demethylating agent 5'-azacytidine restored part of TCF21 expression by suppressing TCF21 methylation in 786-O. The methylation level of TCF21 in ccRCC samples was much higher than in NAT samples. These results suggest that the expression of TCF21 was an independent prognostic factor for poor survival in patients with ccRCC. Aberrant methylation was an important reason for the down-regulation the expression of TCF21, and may be associated with tumorigenesis in ccRCC.
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Affiliation(s)
- Y W Ye
- guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen PKU-HKUST Medical Center, Shenzhen, China
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Hwang YJ, Sohn MJ, Lee BH, Kim SY, Seo JW, Han YH, Lee JY, Cha SJ, Kim YH. Radiosurgery for metastatic spinal tumors: follow-up MR findings. AJNR Am J Neuroradiol 2011; 33:382-7. [PMID: 22033723 DOI: 10.3174/ajnr.a2760] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE MR imaging is the primary tool for evaluation and monitoring of spinal tumors. We retrospectively analyzed the MR imaging findings before and after SRS for metastatic spinal tumors. MATERIALS AND METHODS We reviewed MR imaging findings on 79 metastatic spinal tumor lesions in 44 patients (29 male and 15 female)who had undergone radiosurgery between November 2003 and April 2008. Posttreatment MR imaging was evaluated retrospectively for 3 aspects: 1) changes in tumor volume; 2) changes in T2 signal intensity;and 3) changes in contrast enhancement patterns. RESULTS With regard to tumor volume on MR images, 32 lesions(40.5%) decreased in volume (group 1), 39 (49.4%) showed no change (group 2), and 8 (10.1%) increased in volume (group 3). T2 signal intensities were unchanged in 4 lesions (type 1), homogeneously increased in 3 (type 2), and changed to a homogeneously dark signal in 4 (type 4). The T2 signal intensity was increased and inter mixed with dark signal intensity (type 3) in 68 lesions. A decrease in contrast enhancement with or without non-enhancing foci was seen in 73 lesions. A persistent homogeneous enhancement pattern was seen in all 4 of the type 1 lesions, in 1 of the 3 type 2 lesions, and in 1 of the 68 type 3 lesions. CONCLUSIONS Main MR imaging features of locally controlled metastatic spinal tumors included no increase in tumor volume, increased T2 signal intensity with intermixed T2 dark signal intensity,and decreased contrast enhancement. Follow-up MR imaging also provided several patterns of tumor recurrence [corrected].
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Affiliation(s)
- Y J Hwang
- Department of Radiology, Inje University Ilsan Paik Hospital, College of Medicine, Goyang-si, Gyenggi-do, Republic of Korea.
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Han YH, Zhang ZH, Liu JH, Lu JY, Huang SW, Jin WW. Distribution of the tandem repeat sequences and karyotyping in cucumber ( Cucumis sativus L.) by fluorescence in situ hybridization. Cytogenet Genome Res 2008; 122:80-8. [PMID: 18931490 DOI: 10.1159/000151320] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/12/2008] [Indexed: 11/19/2022] Open
Affiliation(s)
- Y H Han
- National Maize Improvement Center of China, Key Laboratory of Crop Genetic Improvement and Genome Ministry of Agriculture, China Agricultural University, Beijing, China
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