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Lee J, Park HL, Park SY, Lim CH, Kim MH, Lee JM, Chang SA, Oh JH. Gastroparesis might not be uncommon in patients with diabetes mellitus in a real-world clinical setting: a cohort study. BMC Gastroenterol 2024; 24:30. [PMID: 38212710 PMCID: PMC10782575 DOI: 10.1186/s12876-023-03106-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 12/25/2023] [Indexed: 01/13/2024] Open
Abstract
BACKGROUND This study investigated the frequency of diabetic gastroparesis and associated risk factors in a real-world clinical setting. METHODS This retrospective cross-sectional study included patients who underwent assessments of solid gastric emptying time (GET) by technetium-99 m scintigraphy between May 2019 and December 2020. We categorized patients into three groups according to gastric retention of technetium-99 m: rapid (< 65% at 1 h or < 20% at 2 h), normal (≤60% at 2 h and/or ≤ 10% at 4 h), and delayed (> 60% at 2 h and/or > 10% at 4 h). RESULTS Patients with diabetes mellitus (DM) were more likely to show abnormal GET than those without DM (119 [70.8%] vs. 16 [44.4%]). The mean glycated A1c was 10.3% in DM patients. DM patients with normal GET were significantly younger (57.2 years, P = 0.044) than those with delayed (65.0 years) or rapid GET (60.2 years). Fasting glucose levels were the lowest in the normal GET group and the highest in the rapid GET group (delayed: 176.3 mg/dL, normal: 151.2 mg/dL, rapid: 181.0 mg/dL, P = 0.030). However, glycated A1c was not significantly different among the delayed, normal, and rapid GET groups in patients with DM. Patients with delayed and rapid GET showed a higher frequency of retinopathy (6.0 vs. 15.5%, P = 0.001) and peripheral neuropathy (11.3 vs. 24.4%, P = 0.001) than those with normal GET. In the multinomial logistic regression analysis, retinopathy demonstrated a positive association with delayed GET, while nephropathy showed a significant negative correlation. CONCLUSION DM gastroparesis in the clinical setting was not uncommon. Abnormal GET, including delayed and rapid GET, was associated with DM retinopathy or peripheral neuropathy.
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Affiliation(s)
- Jeongmin Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, 03312, South Korea
| | - Hye Lim Park
- Division of Nuclear medicine, Department of Radiology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, 03312, South Korea
| | - Su Young Park
- Division of Nuclear medicine, Department of Radiology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, 03312, South Korea
| | - Chul-Hyun Lim
- Division of Gastroenterology, Department of Internal Medicine, The Catholic University of Korea, Seoul, 03312, Republic of Korea
| | - Min-Hee Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, 03312, South Korea
| | - Jung Min Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, 03312, South Korea
| | - Sang-Ah Chang
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, 03312, South Korea
| | - Jung-Hwan Oh
- Division of Gastroenterology, Department of Internal Medicine, The Catholic University of Korea, Seoul, 03312, Republic of Korea.
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Park HL, Boo SH, Park SY, Moon SW, Yoo IR. Prognostic value of TLR from FDG PET/CT in patients with margin-negative stage IB and IIA non-small cell lung cancer. Eur Radiol 2023; 33:7274-7283. [PMID: 37060445 DOI: 10.1007/s00330-023-09641-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 03/16/2023] [Accepted: 03/30/2023] [Indexed: 04/16/2023]
Abstract
OBJECTIVES To evaluate the prognostic value of TLR from PET/CT in patients with resection margin-negative stage IB and IIA non-small cell lung cancer (NSCLC) and compare high-risk factors necessitating adjuvant treatment (AT). METHODS Consecutive FDG PET/CT scans performed for the initial staging of NSCLC stage IB and IIA were retrospectively reviewed. The maximum standardized uptake value (SUVmax) of the primary tumor and mean SUV of the liver were acquired. The tumor-to-liver SUV ratio (TLR) was also calculated. Charts were reviewed for basic patient characteristics and high-risk factors for considering AT (poor differentiation, visceral pleura invasion, vascular invasion, tumors > 4 cm, and wedge resection). Statistical analysis was performed using Cox regression analysis and the Kaplan-Meier method. RESULTS Of the 112 patients included, 15 (13.4%) died, with a median overall survival (OS) of 43.8 months. Twenty-two patients (19.6%) exhibited recurrence, with median disease-free survival (DFS) of 36.0 months. In univariable analysis, pathology, poor differentiation, and TLR were associated with shorter DFS and OS. In multivariable analysis, TLR (hazard ratio [HR] = 1.263, p = 0.008) and differentiation (HR = 3.087, p = 0.012) were associated with shorter DFS. Also, TLR (HR = 1.422, p < 0.001) was associated with shorter OS. CONCLUSION TLR from FDG PET/CT was an independent prognostic factor for recurrence and survival. PET parameters constitute risk factors for consideration in the decision-making for AT in margin-negative stage IB and IIA NSCLC. CLINICAL RELEVANCE STATEMENT In this study, TLR from FDG PET/CT was an independent prognostic factor in stage IB-IIA non-small cell cancer patients. Although additional validation studies are warranted, TLR has the potential to be used to determine the need for adjuvant therapy. KEY POINTS • High TLR is an independent poor prognostic factor in stage IB-IIA NSCLC. • Adjuvant treatment should be considered in patients with high TLR following complete tumor resection.
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Affiliation(s)
- Hye Lim Park
- Division of Nuclear Medicine, Department of Radiology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sun Ha Boo
- Division of Nuclear Medicine, Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591, Korea
| | - Sonya Youngju Park
- Division of Nuclear Medicine, Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591, Korea
| | - Seok Whan Moon
- Department of Thoracic and Cardiovascular Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ie Ryung Yoo
- Division of Nuclear Medicine, Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591, Korea.
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Park HL, Lee SW, Hong JH, Lee J, Lee A, Kwon SJ, Park SY, Yoo IR. Prognostic impact of 18F-FDG PET/CT in pathologic stage II invasive ductal carcinoma of the breast: re-illuminating the value of PET/CT in intermediate-risk breast cancer. Cancer Imaging 2023; 23:2. [PMID: 36600314 DOI: 10.1186/s40644-022-00519-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Accepted: 12/28/2022] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND The aim of this study is to investigate the impact of 18F-FDG PET/CT on prognosis of stage II invasive ductal carcinoma (IDC) of the breast primarily treated with surgery. METHODS The clinical records of 297 consecutive IDC with preoperative PET/CT and pathologically staged II in surgery from 2013 to 2017 were retrospectively reviewed. The maximum standardized uptake value (SUVmax), peak standardized uptake value (SUVpeak), tumor-to-liver ratio (TLR), and metabolic tumor volume (MTV) were measured. Association of clinicopathologic factors (age, T stage, N stage, AJCC pathologic stage of IIA or IIB, pathologic prognostic stage, grade, hormonal receptor status, HER2 status, Ki-67, and adjuvant therapy) and PET parameters with DFS was assessed using the Cox proportional hazards model. RESULTS There were 35 recurrences and 10 deaths at a median follow-up of 49 months (range 0.8 ~ 87.3). All PET parameters were significantly associated with DFS in univariate analysis but in multivariate analysis, SUVpeak was the only factor significantly associated with DFS (hazard ratio 2.58, 95% confidence interval 1.29-5.15, P = 0.007). In cohorts with higher values of SUVpeak or TLR, patients who received adjuvant chemotherapy had significantly superior DFS. CONCLUSION Metabolic parameters derived from preoperative PET/CT was significantly associated with recurrence in stage II IDC primarily treated with surgery. PET/CT can be a powerful prognostic tool in conjunction with novel staging systems and current biomarkers for patients undergoing contemporary therapy. Our results urge to reconsider the currently underestimated value of PET/CT confined to diagnostic aspect and to newly recognize its prognostic impact in these intermediate-risk breast cancer.
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Affiliation(s)
- Hye Lim Park
- Division of Nuclear Medicine, Department of Radiology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Sea-Won Lee
- Department of Radiation Oncology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Ji Hyung Hong
- Division of Medical Oncology, Department of Internal Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Jieun Lee
- Division of Medical Oncology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Ahwon Lee
- Department of Hospital Pathology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Soo Jin Kwon
- Division of Nuclear Medicine, Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Sonya Youngju Park
- Division of Nuclear Medicine, Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Ie Ryung Yoo
- Division of Nuclear Medicine, Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea.
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Lee SW, Park HL, Yoon N, Kim JH, Oh JK, Buyn JH, Choi EK, Hong JH. Prognostic Impact of Total Lesion Glycolysis (TLG) from Preoperative 18F-FDG PET/CT in Stage II/III Colorectal Adenocarcinoma: Extending the Value of PET/CT for Resectable Disease. Cancers (Basel) 2022; 14:cancers14030582. [PMID: 35158851 PMCID: PMC8833504 DOI: 10.3390/cancers14030582] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 12/23/2021] [Revised: 01/18/2022] [Accepted: 01/21/2022] [Indexed: 01/27/2023] Open
Abstract
We investigated the prognostic role of metabolic parameters from preoperative 18F-FDG PET/CT in stage II/III colorectal adenocarcinoma. A total of 327 stage II/III colorectal adenocarcinoma patients who underwent curative resection were included. The maximal standard uptake value (SUVmax), metabolic tumor volume (MTV), and total lesion glycolysis (TLG) were analyzed for optimal cut-offs and their effect on DFS. Differences in DFS rates and hazard ratios for DFS between cut-offs were statistically significant in SUVmax, MTV2.5, MTV3, TLG 2.5, TLG3, and TLG30%. Factors significantly related to DFS in univariate Cox regression were age, sex, stage, preoperative CEA, SUVmax, MTV2.5, MTV3, TLG2.5, TLG3, and TLG30%. Age, sex, preoperative CEA, and TLG2.5 (p = 0.009) sustained statistically significant difference in multivariate analysis. The 1-, 3-, and 5-year DFS rates for TLG2.5 ≤ 448.5 were 98.1%, 79.6%, and 74.8%, significantly higher than 78.4%, 68.5%, and 61.1% of TLG2.5 > 448.5, respectively (p = 0.012). TLG, a parameter indicating both the metabolic activity and metabolic volume, was the strongest predictor independently associated with DFS, among several PET parameters with statistical significance. These results suggest the potential prognostic value of preoperative 18F-FDG PET/CT in stage II/III resectable colorectal cancer.
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Affiliation(s)
- Sea-Won Lee
- Department of Radiation Oncology, Eunpyeong St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 03312, Korea;
| | - Hye Lim Park
- Division of Nuclear Medicine, Department of Radiology, Eunpyeong St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 03312, Korea;
| | - Nara Yoon
- Department of Pathology, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Incheon 21431, Korea;
| | - Ji Hoon Kim
- Department of General Surgery, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Incheon 21431, Korea;
| | - Jin Kyoung Oh
- Department of Radiology, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Incheon 21431, Korea;
| | - Jae Ho Buyn
- Department of Internal Medicine, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Incheon 21431, Korea;
| | - Eun Kyoung Choi
- Department of Radiology, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Incheon 21431, Korea;
- Correspondence: (E.K.C.); (J.H.H.); Tel.: +82-32-280-5242 (E.K.C.); +82-2-2030-4361 (J.H.H.)
| | - Ji Hyung Hong
- Department of Internal Medicine, Eunpyeong St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 03312, Korea
- Correspondence: (E.K.C.); (J.H.H.); Tel.: +82-32-280-5242 (E.K.C.); +82-2-2030-4361 (J.H.H.)
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Yoon B, Yang DW, Hong YJ, Kim T, Na S, Noh SM, Park HL, Ku BD, Yang YS, Choi H, Jang JW, Kim S, Kim Y, Shim Y. Cognitive decline according to amyloid uptake in patients with poststroke cognitive impairment. Medicine (Baltimore) 2021; 100:e27252. [PMID: 34559128 PMCID: PMC8462636 DOI: 10.1097/md.0000000000027252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 08/30/2021] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND AND PURPOSE Poststroke cognitive impairment (PSCI) is common, but the impact of β-amyloid (Aβ) on PSCI is uncertain. The proposed study will investigate amyloid pathology in participants with PSCI and how differently their cognition progress according to the amyloid pathology. METHODS This multicenter study was designed to be prospective and observational based on a projected cohort size of 196 participants with either newly developed cognitive impairment, or rapidly aggravated CI, within 3 months after acute cerebral infarction. They will undergo 18F-flutemetamol positron emission tomography at baseline and will be categorized as either amyloid-positive (A+) or amyloid-negative (A-) by visual rating. The primary outcome measures will be based on Korean Mini-Mental State Examination changes (baseline to 12 months) between the A+ and A- groups. The secondary outcome measures will be the dementia-conversion rate and changes in the Korean version of the Montreal Cognitive Assessment (baseline to 12 months) between the A+ and A- groups. CONCLUSIONS This study will provide a broadened perspective on the impact of Aβ on the cause and outcomes of PSCI in clinical practice. Identifying amyloid pathology in patients with PSCI will help select patients who need more focused treatments such as acetylcholinesterase inhibitors. TRIAL REGISTRATION Clinical Research Information Service identifier: KCT0005086.
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Affiliation(s)
- Bora Yoon
- Department of Neurology, Konyang University Hospital, Konyang University College of Medicine, Daejeon, Republic of Korea
| | - Dong Won Yang
- Department of Neurology, The Catholic University of Korea Seoul St. Mary's Hospital, Seoul, Republic of Korea
| | - Yun-Jeong Hong
- Department of Neurology, The Catholic University of Korea Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea
| | - Taewon Kim
- Department of Neurology, The Catholic University of Korea Incheon St. Mary's Hospital, Incheon, Republic of Korea
| | - Seunghee Na
- Department of Neurology, The Catholic University of Korea Incheon St. Mary's Hospital, Incheon, Republic of Korea
| | - Sang-Mi Noh
- Department of Neurology, The Catholic University of Korea St. Vincent's Hospital, Suwon, Republic of Korea
| | - Hye Lim Park
- Division of Radiology, Department of Nuclear Medicine, The Catholic University of Korea Eunpyeong St. Mary's Hospital, Seoul, Republic of Korea
| | - Bon D. Ku
- Department of Neurology, International St. Mary's Hospital, Catholic Kwandong University College of Medicine, Incheon, Republic of Korea
| | - Young Soon Yang
- Department of Neurology, Soonchunhyang University College of Medicine, Cheonan Hospital, Cheonan, Republic of Korea
| | - Hojin Choi
- Department of Neurology, Hanyang University Guri Hospital, Guri, Republic of Korea
| | - Jae-Won Jang
- Department of Neurology, Kangwon National University Hospital, Kangwon National University College of Medicine, Chuncheon, Republic of Korea
| | - Seongheon Kim
- Department of Neurology, Kangwon National University Hospital, Kangwon National University College of Medicine, Chuncheon, Republic of Korea
| | - Yerim Kim
- Department of Neurology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Republic of Korea
| | - YongSoo Shim
- Department of Neurology, The Catholic University of Korea Eunpyeong St. Mary's Hospital, Seoul, Republic of Korea
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Kim KY, Park HL, Kang HS, Lee HY, Yoo IR, Lee SH, Yeo CD. Clinical Characteristics and Outcome of Pathologic N0 Non-small Cell Lung Cancer Patients With False Positive Mediastinal Lymph Node Metastasis on FDG PET-CT. In Vivo 2021; 35:1829-1836. [PMID: 33910869 DOI: 10.21873/invivo.12444] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/15/2021] [Accepted: 03/16/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND/AIM Preoperative fluorine-18 fluorodeoxyglucose positron emission tomography/computed tomography (FDG PET-CT) is a non-invasive and useful diagnostic tool to evaluate mediastinal lymph node (LN) metastasis in lung cancer. However, there are often false-positive LN cases in FDG PET-CT. This study aimed to explore the clinical characteristics and outcome of pathologic N0 non-small cell lung cancer patients with false-positive mediastinal LN on FDG PET-CT. PATIENTS AND METHODS We enrolled 147 patients who underwent preoperative FDG PET-CT scan and mediastinal LN dissection. These patients were re-evaluated for post-operative pathologic nodal metastasis and divided into a false-positive group and a group of others. RESULTS Among 40 patients diagnosed with clinical N1-3 on FDG PET-CT, 19 (47.5%) patients were pathologic N0, meaning false-positive LN by PET-CT. Preoperative absolute platelet count and platelet-lymphocyte ratio were significantly higher in patients with pathologic N0. The presence of lymphatic invasion was significantly lower in patients with pathologic N0 than in the group of others. Recurrence-free survival was significantly shorter in patients with false positive LN than in patients with true positive LN or true negative LN at the same pathologic stage. CONCLUSION Higher absolute platelet count and PLR, lower proportion of lymphatic invasion and shorter recurrence-free survival were associated with false positive mediastinal LN on preoperative FDG PET-CT.
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Affiliation(s)
- Kyu Yean Kim
- Division of Pulmonology, Allergy and Critical Care Medicine, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hye Lim Park
- Division of Nuclear Medicine, Department of Radiology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hye Seon Kang
- Division of Pulmonology, Allergy and Critical Care Medicine, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hwa Young Lee
- Division of Pulmonology, Allergy and Critical Care Medicine, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Ie Ryung Yoo
- Division of Nuclear Medicine, Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sang Haak Lee
- Division of Pulmonology, Allergy and Critical Care Medicine, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Chang Dong Yeo
- Division of Pulmonology, Allergy and Critical Care Medicine, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea;
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Lee J, Ha J, Lee SK, Park HL, Kim SH, Lim DJ, Lee JM, Chang SA, Kang MI, Kim MH. Feasibility of Iodine-131 6β-Methyl-Iodo-19 Norcholesterol (NP-59) Scintigraphy to Complement Adrenal Venous Sampling in Management of Primary Aldosteronism: A Case Series. Int J Gen Med 2021; 14:673-680. [PMID: 33688238 PMCID: PMC7935438 DOI: 10.2147/ijgm.s288774] [Citation(s) in RCA: 3] [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: 10/29/2020] [Accepted: 12/08/2020] [Indexed: 11/23/2022] Open
Abstract
Purpose Primary aldosteronism (PA) is mainly comprised of aldosterone-producing adenoma and bilateral idiopathic adrenal hyperplasia. Current guidelines recommend adrenal venous sampling (AVS) as a gold standard method to classify the subtypes. However, because of technical challenges in AVS including invasiveness of AVS and a wide range of success rate for cannulation, it is not uncommon that appropriate decisions could not be made depending on AVS. The aim of this study is to elucidate the proper role of I‑131‑6β‑iodomethyl‑norcholesterol (NP-59) scintigraphy in management of PA. Patients and Methods Between January 2009 and October 2018, patients with PA were retrospectively reviewed for the study. Five patients were included in the study who had NP-59 scintigraphy with non-conclusive AVS results or without AVS. We described the clinical outcome of patients in whom clinical decisions were made according to NP-59 scintigraphy results. Results Patients in the presenting cases were diagnosed for PA. AVS, the most reliable test to identify unilateral APA, were not applicable because of hypersensitivity to contrast dye (patient 1), and use of antiplatelet agents after acute cerebral infarction (patient 2). NP-59 scintigraphy was performed in patients 3 and 4 whose result of AVS and CT scan were inconsistent. In patient 5, who had bilateral adrenal adenomas (two in the left and one in the right adrenal gland), both unsuccessful catheterization and coexistence of cortisol overproduction made AVS results unreliable. Conclusion Based on clinical outcomes of these case series, it is noticeable that NP-59 scintigraphy could play a substantial role in management of PA in selected cases.
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Affiliation(s)
- Jeongmin Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jeonghoon Ha
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sang-Kuon Lee
- Division of Pancreatobiliary Surgery, Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hye Lim Park
- Division of Nuclear Medicine, Department of Radiology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sung-Hoon Kim
- Division of Nuclear Medicine, Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Dong-Jun Lim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jung Min Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sang-Ah Chang
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Moo Il Kang
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Min-Hee Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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Park HL, Han EJ, O JH, Choi BO, Park G, Jung SE, Yahng SA, Eom KS, Cho SG. Early Interim Chemotherapy Response Evaluation by F-18 FDG PET/CT in Diffuse Large B Cell Lymphoma. Diagnostics (Basel) 2020; 10:diagnostics10121002. [PMID: 33255487 PMCID: PMC7761146 DOI: 10.3390/diagnostics10121002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 11/07/2020] [Revised: 11/21/2020] [Accepted: 11/21/2020] [Indexed: 11/16/2022] Open
Abstract
Fluorine-18 fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) after one cycle of standard chemotherapy in patients with diffuse large B cell lymphoma (DLBCL) was assessed. Prospectively enrolled 51 patients had four PET/CT studies using the same protocol and system: at baseline and after one, three, and six cycles of chemotherapy (PET0, PET1, PET3, PET6). The PET1 and PET6 Deauville five-point score (D5PS) agreed in 60.8%, while PET3 and PET6 D5PS agreed in 90.2%. The absolute and percent changes of peak standard uptake value corrected for lean body mass (SULpeak) compared to baseline were significantly different between PET1 and PET3 (p = 0.001, p < 0.001) and PET1 and PET6 (p = 0.002, p = 0.001), but not between PET3 and PET6 (p = 0.276, p = 0.181). The absolute SULpeak from PET1 predicted treatment failure with accuracy of 78.4% (area under the curve 0.73, p = 0.023). D5PS, SULpeak, and metabolic tumor volume (MTV) were not statistically different between responders versus non-responders, or the one year disease-free versus relapse groups. D5PS and PERCIST responses showed 100% agreement at end-of-therapy. In conclusion, the responses after three and six cycles of therapy showed high degree of agreement. D5PS or MTV after one cycle of chemotherapy could not predict response or one-year disease-free status, but the SULpeak from PET1 was associated with response to first line therapy in DLBCL. Deauville and PERCIST criteria show high concordance.
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Affiliation(s)
- Hye Lim Park
- Division of Nuclear Medicine, Department of Radiology, Eunpyeong St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
| | - Eun Ji Han
- Division of Nuclear Medicine, Department of Radiology, Yeouido St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
| | - Joo Hyun O
- Division of Nuclear Medicine, Department of Radiology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Correspondence: ; Tel.: +82-2-2258-1551; Fax: +82-2-2258-1575
| | - Byung-Ock Choi
- Department of Radiation Oncology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
| | - Gyeongsin Park
- Department of Hospital Pathology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
| | - Seung-Eun Jung
- Department of Radiology, Eunpyeong St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
| | - Seung-Ah Yahng
- Department of Hematology, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
| | - Ki-Seong Eom
- Department of Hematology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (K.-S.E.); (S.-G.C.)
| | - Seok-Goo Cho
- Department of Hematology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (K.-S.E.); (S.-G.C.)
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Kwon SY, Lee SW, Kong EJ, Kim K, Kim BI, Kim J, Kim H, Park SH, Park J, Park HL, Oh SW, Won KS, Ryu YH, Yoon JK, Lee SJ, Lee JJ, Chong A, Jeong YJ, Jeong JH, Cho YS, Cho A, Cheon GJ, Choi EK, Hwang JP, Bae SK. Clinicopathologic risk factors of radioactive iodine therapy based on response assessment in patients with differentiated thyroid cancer: a multicenter retrospective cohort study. Eur J Nucl Med Mol Imaging 2019; 47:561-571. [PMID: 31820047 DOI: 10.1007/s00259-019-04634-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 09/06/2019] [Accepted: 11/19/2019] [Indexed: 11/26/2022]
Abstract
PURPOSE We investigated whether predictive clinicopathologic factors can be affected by different response criteria and how the clinical usefulness of radioactive iodine (RAI) therapy should be evaluated considering variable factors in patients with differentiated thyroid carcinoma (DTC). METHODS A total of 1563 patients with DTC who underwent first RAI therapy after total or near total thyroidectomy were retrospectively enrolled from 25 hospitals. Response to therapy was evaluated with two different protocols based on combination of biochemical and imaging studies: (1) serum thyroglobulin (Tg) and neck ultrasonography (US) and (2) serum Tg, neck US, and radioiodine scan. The responses to therapy were classified into excellent and non-excellent or acceptable and non-acceptable to minimize the effect of non-specific imaging findings. We investigated which factors were associated with response to therapy depending on the follow-up protocols as well as response classifications. Multivariate logistic regression analysis was performed to identify factors significantly predicting response to therapy. RESULTS The proportion of patients in the excellent response group significantly decreased from 76.5 to 59.6% when radioiodine scan was added to the follow-up protocol (P < 0.001). Preparation method (recombinant human TSH vs. thyroid hormone withdrawal) was a significant factor for excellent response prediction evaluated with radioiodine scan (OR 2.129; 95% CI 1.687-2.685; P < 0.001) but was not for other types of response classifications. Administered RAI activity, which was classified as low (1.11 GBq) or high (3.7 GBq or higher), significantly predicted both excellent and acceptable responses regardless of the follow-up protocol. CONCLUSIONS The clinical impact of factors related to response prediction differed depending on the follow-up protocol or classification of response criteria. A high administered activity of RAI was a significant factor predicting a favorable response to therapy regardless of the follow-up protocol or classification of response criteria.
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Affiliation(s)
- Seong Young Kwon
- Department of Nuclear Medicine, Chonnam National University Medical School and Hwasun Hospital, Hwasun, Jeonnam, Republic of Korea
| | - Sang-Woo Lee
- Department of Nuclear Medicine, School of Medicine and Chilgok Hospital, Kyungpook National University, Daegu, Republic of Korea
| | - Eun Jung Kong
- Department of Nuclear Medicine, Yeungnam University Medical School and Hospital, Daegu, Republic of Korea
| | - Keunyoung Kim
- Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University, Busan, Republic of Korea
| | - Byung Il Kim
- Department of Nuclear Medicine, Korea Institute of Radiological & Medical Sciences, Seoul, Republic of Korea
| | - Jahae Kim
- Department of Nuclear Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Heeyoung Kim
- Department of Nuclear Medicine, Kosin University Gospel Hospital, Busan, Republic of Korea
| | - Seol Hoon Park
- Department of Nuclear Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea
| | - Jisun Park
- Department of Nuclear Medicine, Inje University Busan Paik Hospital, Busan, Republic of Korea
| | - Hye Lim Park
- Division of Nuclear Medicine, Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - So Won Oh
- Department of Nuclear Medicine, Seoul National University Boramae Medical Center, Seoul, Republic of Korea
| | - Kyoung Sook Won
- Department of Nuclear Medicine, Keimyung University Dongsan Hospital, Daegu, Republic of Korea
| | - Young Hoon Ryu
- Department of Nuclear Medicine, Yonsei University Gangnam Severance Hospital, Seoul, Republic of Korea
| | - Joon-Kee Yoon
- Department of Nuclear Medicine and Molecular Imaging, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Soo Jin Lee
- Department of Nuclear Medicine, Hanyang University Medical Center, Seoul, Republic of Korea
| | - Jong Jin Lee
- Department of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Ari Chong
- Department of Nuclear Medicine, Chosun University Hospital, Gwangju, Republic of Korea
| | - Young Jin Jeong
- Department of Nuclear Medicine, Dong-A University Hospital, Busan, Republic of Korea
| | - Ju Hye Jeong
- Department of Nuclear Medicine, Kyungpook National University Hospital, Daegu, Republic of Korea
| | - Young Seok Cho
- Department of Nuclear Medicine, Samsung Medical Center, Seoul, Republic of Korea
| | - Arthur Cho
- Department of Nuclear Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Gi Jeong Cheon
- Department of Nuclear Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Eun Kyoung Choi
- Division of Nuclear Medicine, Department of Radiology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jae Pil Hwang
- Department of Nuclear Medicine, Soon Chun Hyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - Sang Kyun Bae
- Department of Nuclear Medicine, Inje University Haeundae Paik Hospital, Busan, Republic of Korea.
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Park HL, O JH, Park SY, Jung SE, Park G, Choi BO, Kim SH, Jeon YW, Cho SG, Yang SW. Role of F-18 FDG PET/CT in non-conjunctival origin ocular adnexal mucosa-associated lymphoid tissue (MALT) lymphomas. EJNMMI Res 2019; 9:99. [PMID: 31754896 PMCID: PMC6872696 DOI: 10.1186/s13550-019-0562-1] [Citation(s) in RCA: 2] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 09/20/2019] [Indexed: 11/16/2022] Open
Abstract
Background Despite the widespread use of F-18 fluorodeoxyglucose positron emission tomography/computed tomography (FDG PET/CT) in the diagnosis and response assessment of patients with lymphoma, few studies have assessed its value in ocular adnexal lymphomas. The purpose of this study was to evaluate the role of FDG PET/CT in staging of non-conjunctival origin ocular adnexal mucosa-associated lymphoid tissue (MALT) lymphomas (OAML). In addition, the diagnostic sensitivity of FDG PET/CT was compared with magnetic resonance imaging (MRI). FDG PET/CT of 123 consecutive patients with pathologically proven OAML between January 2009 and February 2016 were retrospectively reviewed. The patients with MALT lymphoma originating from conjunctiva were excluded. A total 50 patients with non-conjunctival origin OAML were assessed. Maximum standardized uptake value (SUVmax) and additional PET parameters were measured for all lesions. Sensitivity for primary tumor detection was compared with MRI. Results Ten patients had bilateral OAML and total 60 OAML lesions were analyzed. MRI was missing in one patient. The tumor locations were as follows: eyelid, 9; lacrimal gland, 18; orbit, 33. Fifty lesions (83.3%) were FDG-avid tumors with mean ± SD SUVmax 4.8 ± 2.4 (range 2.0~11.1). The mean SUVmax according to tumor location were as follows: eyelid, 3.7 ± 1.1 (2.8~5.3); lacrimal gland, 3.6 ± 1.4 (2.1~6.4); orbit, 5.7 ± 2.6 (2.0~11.1). Mean SUVmax among the 3 locations were statistically different (P = 0.010). The sensitivity was calculated as 83.1% (49/59) for FDG PET/CT and 89.8% (53/59) for MRI, which were statistically comparable (P = 0.219 by McNemar’s test). Seven of 50 patients (14%) were upstaged by detection of extraocular lesions by FDG PET/CT (1 kidney and lung, 1 tonsil, 4 cervical LNs, 1 sacral foramen). Conclusion 83.3% of the non-conjunctival origin OAML were FDG-avid tumors, with FDG PET/CT showing comparable sensitivity to that of MRI. FDG PET/CT detected unsuspected extraocular lymphoma involvement in 14% of the patients. FDG PET/CT performed for staging of non-conjunctival origin OAML may thus guide therapeutic management.
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Affiliation(s)
- Hye Lim Park
- Division of Nuclear Medicine, Department of Radiology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Joo Hyun O
- Division of Nuclear Medicine, Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea.
| | - Sonya Youngju Park
- Division of Nuclear Medicine, Department of Radiology, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Seung-Eun Jung
- Department of Radiology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Gyeongsin Park
- Department of Hospital Pathology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Byung-Ock Choi
- Department of Radiation Oncology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sung Hoon Kim
- Division of Nuclear Medicine, Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea
| | - Young-Woo Jeon
- Department of Hematology, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Seok-Goo Cho
- Department of Hematology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Suk-Woo Yang
- Department of Ophthalmology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea.
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Choi EK, Park HL, Yoo IR, Kim SJ, Kim YK. The clinical value of F-18 FDG PET/CT in differentiating malignant from benign lesions in pneumoconiosis patients. Eur Radiol 2019; 30:442-451. [DOI: 10.1007/s00330-019-06342-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 05/13/2019] [Accepted: 06/26/2019] [Indexed: 01/01/2023]
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Acerbi I, Shieh Y, Madlensky L, Tice J, Ziv E, Eklund M, Blanco A, DeRosa D, Tong B, Goodman D, Nassereddine L, Anderson N, Harvey H, Layton T, Park HL, Petruse A, Stewart S, Wernisch J, Risty L, Koenig B, Sarrafan S, Firouzian R, Kaplan C, Hiatt R, Parker BA, Wenger N, Lee V, Heditsian D, Brain S, Stover Fiscalini A, Borowsky AD, Anton-Culver H, Naeim A, Kaster A, Talley M, van 't Veer LJ, LaCroix A, Esserman LJ. Abstract OT2-08-01: Personalized breast cancer screening in a population based study: Women Informed to Screen Depending On Measures of risk (WISDOM). Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-ot2-08-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: WISDOM is a 100,000 healthy women preference-tolerant, pragmatic study comparing annual to personalized risk-based breast screening. The novelty of WISDOM personalized screening is the integration of previously validated genetic and clinical risk factors (age, family history, breast biopsy results, ethnicity, mammographic density) into a single risk assessment model that directs the starting age, timing, and frequency of screening. The goal of WISDOM is to determine if personalized screening, compared to annual screening, is as safe, less morbid, enables prevention, and is preferred by women. The study is registered on ClinicalTrials.gov, NCT02620852.
Methods: Women aged 40-74 years with no history of breast cancer or DCIS, and no previous double mastectomy can join the study online at wisdomstudy.org. Participants can elect randomization or self-select a study arm, and provide electronic consent and Release for Medical Information using DocuSign. For all participants, 5-year risk of developing breast cancer is calculated according to the Breast Cancer Screening Consortium (BCSC) model. Participants in the personalized arm undergo panel-based mutation testing, and their 5-year risk is calculated using the BCSC score combined with a Polygenic Risk Score (BCSC-PRS) that includes 75 single nucleotide polymorphisms (SNPs, increase to 229) known to increase breast cancer risk. SNPs and mutations (BRCA1, BRCA2, TP53, PTEN, STK11, CDH1, ATM, PALB2, and CHEK2) are assessed by saliva-based testing through Color Genomics. 5-year risk level thresholds are used to stratify for low-, moderate- and high risk. Risk stratification determines age to start, stop, and frequency of screening.
Enrollment: As of July 2018, the WISDOM study is open to all eligible women in California, North Dakota, South Dakota, Minnesota and Iowa. To date, 23,329 eligible women have registered and 14,393 women have consented to participate in the trial. We analyzed 3,255 participants who have completed risk assessment in the personalized arm. The median age was 56 years. 82% were Caucasian, 1% African-American, and 6% Asian. 9% self-reported as Hispanic. We are partnering with health insurers and self-insured companies using coverage with evidence progression. To strengthen generalizability, we are expanding to other states. WISDOM enrollment will continue past 2019.
Feasibility: To evaluate the addition of PRS, we used paired statistical tests (McNemar) to compare the distributions of BCSC, and BCSC-PRS risk estimates around low-risk (<1.3%), and very-high risk (>6%) thresholds, the latter corresponding to 5-year risk of a BRCA mutation carrier. The median 5-year risk was 1.5% (IQR 1.0-2.1%) using the BCSC model, and 1.4% (IQR 0.8-2.5%) using the BCSC-PRS model. The BCSC-PRS model classified more women into the low (<1%) and very high (≥6%) risk categories compared to the BCSC model (p < 0.001).
Conclusions: Our findings demonstrate that incorporating genetic variants into a validated clinical model is feasible and impacts risk classification compared to a model without genetic risk factors. Results at 5 years will reveal if this classification improves healthcare value by reducing screen volumes and costs without jeopardizing outcomes.
Citation Format: Acerbi I, Shieh Y, Madlensky L, Tice J, Ziv E, Eklund M, Blanco A, DeRosa D, Tong B, Goodman D, Nassereddine L, Anderson N, Harvey H, Layton T, Park HL, Petruse A, Stewart S, Wernisch J, Risty L, Koenig B, Sarrafan S, Firouzian R, Kaplan C, Hiatt R, Parker BA, Wenger N, Lee V, Heditsian D, Brain S, Stover Fiscalini A, Borowsky AD, Anton-Culver H, Naeim A, Kaster A, Talley M, van 't Veer LJ, LaCroix A, Wisdom Study and Athena Breast Health Network Investigators and Advocate Partners, Esserman LJ. Personalized breast cancer screening in a population based study: Women Informed to Screen Depending On Measures of risk (WISDOM) [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr OT2-08-01.
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Affiliation(s)
- I Acerbi
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - Y Shieh
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - L Madlensky
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - J Tice
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - E Ziv
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - M Eklund
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - A Blanco
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - D DeRosa
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - B Tong
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - D Goodman
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - L Nassereddine
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - N Anderson
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - H Harvey
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - T Layton
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - HL Park
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - A Petruse
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - S Stewart
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - J Wernisch
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - L Risty
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - B Koenig
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - S Sarrafan
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - R Firouzian
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - C Kaplan
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - R Hiatt
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - BA Parker
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - N Wenger
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - V Lee
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - D Heditsian
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - S Brain
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - A Stover Fiscalini
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - AD Borowsky
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - H Anton-Culver
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - A Naeim
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - A Kaster
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - M Talley
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - LJ van 't Veer
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - A LaCroix
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
| | - LJ Esserman
- University of California, San Francisco, San Francisco, CA; University of California, San Diego, San Diego, CA; University of California, Davis, Sacramento, CA; University of California, Irvine, Irvine, CA; University of California, Los Angeles, Los Angeles, CA; Sanford Health, Sioux Falls, SD; Karolinska Institutet, Stockholm, Sweden
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Park HL, Yoo IR, Kim YS, Kang JH, Lee JE. Radiation nephritis: 99mTc hydroxydiphosphonate bone scan, 99mTc dimercaptosuccinic acid renal scan, and 18F-FDG PET/CT findings. Korean J Intern Med 2018; 33:837-838. [PMID: 29088910 PMCID: PMC6030411 DOI: 10.3904/kjim.2017.145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 05/14/2017] [Indexed: 11/27/2022] Open
Affiliation(s)
- Hye Lim Park
- Division of Nuclear Medicine, Department of Radiology, The Catholic University of Korea, Seoul, Korea
| | - Ie Ryung Yoo
- Division of Nuclear Medicine, Department of Radiology, The Catholic University of Korea, Seoul, Korea
- Correspondence to Ie Ryung Yoo, M.D. Tel: +82-2-2258-1552 Fax: +82-2-2258-1575 E-mail:
| | - Yeon Sil Kim
- Department of Radiation Oncology, The Catholic University of Korea, Seoul, Korea
| | - Jin-Hyoung Kang
- Division of Medical Oncology, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ji Eun Lee
- Division of Medical Oncology, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Na SJ, Park HL, O JH, Lee SY, Song KY, Kim SH. Correlation Between Infection Status of Epstein-Barr Virus and 18F-Fluorodeoxyglucose Uptake in Patients with Advanced Gastric Cancer. ACTA ACUST UNITED AC 2018; 31:749-753. [PMID: 28652452 DOI: 10.21873/invivo.11126] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 05/18/2017] [Accepted: 05/27/2017] [Indexed: 12/11/2022]
Abstract
BACKGROUND Epstein-Barr virus-associated gastric cancer (EBVaGC) is one of the four molecular subtypes of gastric cancer, as defined by the classification recently proposed by The Cancer Genome Atlas. We evaluated the correlation between EBV positivity and 18F-fluorodeoxyglucose (18F-FDG) uptake by positron emission tomography/computed tomography (PET/CT) in patients with gastric cancer. MATERIALS AND METHODS We retrospectively enrolled patients with gastric cancer who underwent pretreatment 18F-FDG PET/CT and subsequent surgical resection, and then were diagnosed with advanced gastric cancer (pathologic stage ≥T2 with any N stage). Maximum standardized uptake values (SUVmax) of gastric cancer were measured by pretreatment 18F-FDG PET/CT. EBV sequences were detected by in situ hybridization (ISH) techniques. We analyzed the correlation between EBV positivity, clinicopathologic features and metabolic activity of the primary tumor. RESULTS A total of 205 patients were included and 15 (7.3%) patients were identified as having EBV-positive gastric cancer. Age, gender, tumor location, and histological type showed no significant differences between EBV-positive and negative groups. EBV-positive cancer is significantly more frequent in the higher-metabolic-tumor group than in the lower one (p=0.032). The mean SUVmax of gastric cancers showed significant differences between EBV-positive and negative groups (9.9±4.2 vs. 7.0±4.8, p=0.026). CONCLUSION The infection status of EBV was significantly related to the 18F-FDG uptake of primary tumors in patients with advanced gastric cancer.
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Affiliation(s)
- Sae Jung Na
- Department of Radiology, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hye Lim Park
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Joo Hyun O
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sung Yong Lee
- Department of Radiology, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Kyo Young Song
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sung Hoon Kim
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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Park HL, Columbus A, Kelly R, Alvarez A, Goodman D, Larsen K, Ziogas A, Anton-Culver H. Abstract P3-09-07: Breast cancer risk assessment in a multiethnic patient population. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p3-09-07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
The United States Preventive Services Task Force recommends that women who are at increased risk for breast cancer and at low risk for adverse medication effects should be offered risk-reducing medications, such as tamoxifen or raloxifene, by their clinicians. In addition, the National Comprehensive Cancer Network recommends risk counseling for women with a 5-year risk of ≥1.7% as calculated by the NCI-developed Breast Cancer Risk Assessment Tool (BCRAT, based on the Gail model) or other risk model. Thus, breast cancer risk assessment is important for the identification of women at "high risk" who should be offered risk counseling and potentially intervention. The Athena Breast Health Network, which has served >120,000 breast screening patients across California and the midwest, has integrated breast cancer risk assessment into its clinical breast screening programs. The goal of our study was to characterize breast cancer risk for >10,000 mammography patients in the University of California Irvine Athena Breast Health Network, overall and by race/ethnicity, using several different risk models, including the BCRAT, BCSC, and IBIS models. Our cohort was comprised of 47% non-Hispanic White, 13% non-Hispanic Asian, 38% Hispanic, and 2% women of other race/ethnicities. Using data collected from electronic medical records and self-completed questionnaires, we determined that, as expected, non-Hispanic White and Asian women had higher breast cancer risk scores than Hispanic women for all risk models (5-year risks = 1.51-1.68% and 1.22-1.40% vs. 0.95-1.05%, respectively). In addition, when women were categorized as "increased risk" according to a given risk model if their 5-year risk score was ≥1.7%, the percentages of women at "increased risk" were higher in White women (26.5–42.2%) than in Asian (15.8–28.6%) and Hispanic (6.2–10.7%) women. However, the correlations between risk models were low to moderate in our cohort, overall (Pearson's r = 0.47-0.62) and especially for Asian women (Pearson's r = 0.29-0.49). Our results indicate that using only one risk model in a clinical breast cancer risk assessment program to identify "high risk" women would miss a significant proportion of women who would have been considered "high risk" according to another risk model. Conversely, some women who are identified as "high risk" according to one model may not need risk counseling and intervention since they are not considered "high risk" according to two other models. As our cohort expands and incident breast cancers occur, we will be able to determine which risk model or combination of risk models will have the highest discriminatory accuracy for predicting breast cancer risk in women of different race/ethnicities, which will enable our risk assessment programs to have a more targeted approach to risk counseling and intervention.
Citation Format: Park HL, Columbus A, Athena Breast Health Network Investigators and Advocate Partners, Kelly R, Alvarez A, Goodman D, Larsen K, Ziogas A, Anton-Culver H. Breast cancer risk assessment in a multiethnic patient population [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P3-09-07.
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Affiliation(s)
- HL Park
- University of California, Irvine, Irvine, CA; University of California, San Francisco, San Francisco, CA
| | - A Columbus
- University of California, Irvine, Irvine, CA; University of California, San Francisco, San Francisco, CA
| | - R Kelly
- University of California, Irvine, Irvine, CA; University of California, San Francisco, San Francisco, CA
| | - A Alvarez
- University of California, Irvine, Irvine, CA; University of California, San Francisco, San Francisco, CA
| | - D Goodman
- University of California, Irvine, Irvine, CA; University of California, San Francisco, San Francisco, CA
| | - K Larsen
- University of California, Irvine, Irvine, CA; University of California, San Francisco, San Francisco, CA
| | - A Ziogas
- University of California, Irvine, Irvine, CA; University of California, San Francisco, San Francisco, CA
| | - H Anton-Culver
- University of California, Irvine, Irvine, CA; University of California, San Francisco, San Francisco, CA
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Kim H, Yoo IR, Boo SH, Park HL, O JH, Kim SH. Prognostic Value of Pre- and Post-Treatment FDG PET/CT Parameters in Small Cell Lung Cancer Patients. Nucl Med Mol Imaging 2017; 52:31-38. [PMID: 29391910 DOI: 10.1007/s13139-017-0490-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [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: 03/12/2017] [Revised: 07/21/2017] [Accepted: 07/25/2017] [Indexed: 02/04/2023] Open
Abstract
Purpose To evaluate the prognostic value of PET parameters obtained from pre- and post-treatment FDG PET/CT examinations in patients with SCLC. Methods Fifty-nine patients with initially diagnosed SCLC from 2009 to 2014 were included and had chemotherapy and/or concurrent chemoradiotherapy. FDG PET/CT examinations were performed before (PET1) and after (PET2) treatment to evaluate treatment response. A region of interest was placed over the primary lesion and metastatic lymph nodes within the thoracic cavity. PET parameters including change from PET1 to PET2 (Δ in %) were acquired: SUVmax, SUVpeak, MTV2.5, TLG, ΔSUVmax, ΔSUVpeak, ΔMTV and ΔTLG. Patient characteristics including staging, age, sex, LDH and response evaluation by RECIST were surveyed. Statistical analysis was done using Kaplan-Meier method and Cox regression analysis with respect to OS and PFS. Results The median follow-up was 9.6 months (2.5-80.5 months). 27 patients were LD and 32 were ED. Forty-six patients (78.0%) had died, and median OS was 8.6 months; 51 patients (86%) showed disease progression, and median PFS was 2.5 months. On univariate analysis, patients with ED, high interval change (ΔSUVmax and ΔSUVpeak) and low PET2 parameters showed longer OS and PFS. Multivariate analyses demonstrated that ΔSUVpeak (HR 2.6, P = 0.002) was an independent prognostic factors for OS, and MTV2.5 of PET2 (HR 2.8, P = 0.001), disease stage (HR 2.7, P = 0.003) and RECIST (HR 2.0, P = 0.023) were independent prognostic factors for PFS. Conclusions Metabolic and volumetric PET parameters obtained from pre- and post-treatment FDG PET/CT examinations in patients with SCLC have significant prognostic information.
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Affiliation(s)
- Hyoungwoo Kim
- Division of Nuclear Medicine, Department of Radiology, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591 Republic of Korea
| | - Ie Ryung Yoo
- Division of Nuclear Medicine, Department of Radiology, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591 Republic of Korea
| | - Sun Ha Boo
- Division of Nuclear Medicine, Department of Radiology, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591 Republic of Korea
| | - Hye Lim Park
- Division of Nuclear Medicine, Department of Radiology, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591 Republic of Korea
| | - Joo Hyun O
- Division of Nuclear Medicine, Department of Radiology, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591 Republic of Korea
| | - Sung Hoon Kim
- Division of Nuclear Medicine, Department of Radiology, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591 Republic of Korea
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Park HL, Yoo IR, Park SY. F-18 FDG PET Findings for Vogt-Koyanagi-Harada Disease. Nucl Med Mol Imaging 2017; 51:190-192. [DOI: 10.1007/s13139-015-0384-7] [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] [Received: 10/15/2015] [Revised: 11/06/2015] [Accepted: 11/11/2015] [Indexed: 10/22/2022] Open
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Park HL, Yoo IR, Kim SH, Lee S. Multiple endocrine neoplasia type 1 with anterior mediastinal parathyroid adenoma: successful localization using Tc-99m sestamibi SPECT/CT. Ann Surg Treat Res 2016; 91:323-326. [PMID: 27904855 PMCID: PMC5128379 DOI: 10.4174/astr.2016.91.6.323] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [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: 05/10/2016] [Revised: 06/28/2016] [Accepted: 06/28/2016] [Indexed: 11/30/2022] Open
Abstract
The most common manifestation of multiple endocrine neoplasia type 1 (MEN1) is hyperparathyroidism. Treatment of hyperparathyroidism in MEN patients is surgical removal of the parathyroid glands, however ectopic parathyroid gland is challenging for treatment. A 51-year-old female, the eldest of 3 MEN1 sisters, had hyperparathyroidism with ectopic parathyroid adenoma in the mediastinal para-aortic region, which was detected by technetium-99m (Tc-99m) sestamibi scintigraphy and single-photon emission computed tomography/computed tomography (SPECT/CT). She underwent total parathyroidectomy with video-assisted thoracoscopic surgery on an anterior mediastinal mass. Anterior mediastinal parathyroid adenoma in MEN1 patients is rare. Precise localization of an ectopic parathyroid gland with Tc-99m sestamibi SPECT/CT can lead to successful treatment of hyperparathyroidism. This is the first reported case in the literature of mediastinal parathyroid adenoma in MEN1 patient visualized by Tc-99m sestamibi SPECT/CT.
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Affiliation(s)
- Hye Lim Park
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ie Ryung Yoo
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sung Hoon Kim
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sohee Lee
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Yoo IR, Chung SK, Park HL, Choi WH, Kim YK, Lee KY, Wang YP. Prognostic value of SUVmax and metabolic tumor volume on 18F-FDG PET/CT in early stage non-small cell lung cancer patients without LN metastasis. Biomed Mater Eng 2015; 24:3091-103. [PMID: 25227018 DOI: 10.3233/bme-141131] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This paper aimed to evaluate the prognostic value of maximum standardized uptake value (SUVmax) and metabolic tumor volume (MTV) of the primary tumor on (18)F-FDG PET/CT scan in early stage non-small cell cancer (NSCLC) patients without lymph node (LN) metastasis. In the experiment, eighty NSCLC patients pathologically staged as T1N0 or T2N0 were included (M:F=50:30; mean age, 64.8 years). All patients had preoperative (18)F-FDG PET/CT scan and curative surgery. FDG uptake in the primary tumor was measured by SUVmax and MTV with various SUV threshold values. SUVmax, MTV of the primary tumor, age, tumor size, histology and differentiation grade were analyzed for association with disease-free survival (DFS). The experimental results showed that the histology types included adenocarcinoma (n=58), squamous cell carcinoma (n=20), and others (n=2); Twenty-two (27.5%) of the 80 patients had a recurrence during follow-up at a median time of 29.1 months; The median SUVmax was 5.26, and the median MTV2.5 was 2.2 cm(3). Univariate analysis showed higher SUVmax (>4), greater MTV (MTV2.5 >4 cm(3)), and non-squamous histology were significantly associated with shorter period DFS (p=0.001, p=0.030 and p<0.001). In multivariate analysis, higher SUVmax (p=0.004) and adenocarcinoma histology (p=0.005) were associated with shorter DFS. Therefore, high SUVmax (>4) of the primary tumor on preoperative (18)F-FDG PET/CT scan is an independent prognostic factor of shorter DFS in early stage of NSCLC.
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Affiliation(s)
- Ie Ryung Yoo
- Department of Radiology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Soo Kyo Chung
- Department of Radiology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hye Lim Park
- Department of Radiology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Woo Hee Choi
- Department of Radiology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Young Kyoon Kim
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Kyo Young Lee
- Department of Hospital Pathology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Young-Pil Wang
- Department of Thoracic and Cardiovascular Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Shin JS, Lee JY, Cho KH, Park HL, Kukulka M, Wu JT, Kim DY, Park SH. The pharmacokinetics, pharmacodynamics and safety of oral doses of ilaprazole 10, 20 and 40 mg and esomeprazole 40 mg in healthy subjects: a randomised, open-label crossover study. Aliment Pharmacol Ther 2014; 40:548-61. [PMID: 25041486 DOI: 10.1111/apt.12860] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Revised: 12/04/2013] [Accepted: 06/13/2014] [Indexed: 12/17/2022]
Abstract
BACKGROUND Ilaprazole, a proton pump inhibitor (PPI) currently in clinical use, may provide improved acid suppression vs. other PPIs. AIM To compare the pharmacodynamic and pharmacokinetic profiles of ilaprazole and esomeprazole. METHODS A phase 1, randomised, open-label, single-centre, 4-period crossover study was conducted in 40 healthy volunteers. Ilaprazole 10, 20 or 40 mg or esomeprazole 40 mg was administered once daily for 5 days with ≥5-day washout intervals. Pharmacokinetic blood samples and intragastric pH measurements were collected at scheduled timepoints for 24 h after dosing on Days 1 and 5. RESULTS Esomeprazole 40 mg provided significantly better pH control during the initial hours (0-4 h) after a single dose, but ilaprazole (particularly 20 and 40 mg) provided significantly better pH control for the entire 24-h period and during evening and overnight hours after single and multiple doses. Increasing ilaprazole doses resulted in dose-proportional increases in peak plasma concentration and area under the plasma concentration vs. time curve following single and multiple doses. Ilaprazole was safe and generally well tolerated; an unexpectedly high incidence of allergic eye and skin reactions were observed but were not specific to any dosing regimen. Plasma gastrin concentrations did not increase proportionately with increasing ilaprazole dose. CONCLUSIONS Ilaprazole provided significantly better pH control over 24 h and during evening and overnight hours compared with esomeprazole in healthy volunteers, which may translate to greater relief of night-time heartburn in the clinical setting for patients with gastric acid-related disorders.
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Affiliation(s)
- J S Shin
- Central Research Institute, IL-YANG Pharmaceutical Co., Ltd., Yongin, South Korea
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Choi HS, Kim SH, Park SY, Park HL, Seo YY, Choi WH. Clinical significance of diffuse intrathoracic uptake on post-therapy I-131 scans in thyroid cancer patients. Nucl Med Mol Imaging 2014; 48:63-71. [PMID: 24900140 DOI: 10.1007/s13139-013-0234-4] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2013] [Revised: 08/22/2013] [Accepted: 08/27/2013] [Indexed: 11/29/2022] Open
Abstract
PURPOSE The purpose of this study was to identify the frequency and possible cause of diffuse intrathoracic uptake on post-therapy I-131 scans in thyroid cancer patients. METHODS We retrospectively reviewed 781 post-therapy scans of 755 thyroid cancer patients who underwent total thyroidectomy and radioactive iodine therapy between January and December 2010. Diffuse intrathoracic uptake on post-therapy scans was examined, and clinical patient characteristics including sex, age, regimen for thyroid-stimulating hormone (TSH) stimulation (thyroid hormone withdrawal or recombinant human TSH injection), TSH, thyroglobulin (Tg) and anti-thyroglobulin antibody (anti-Tg Ab) levels, therapeutic dose of radioactive iodine therapy and prior history of radioactive iodine therapy were recorded.Scan findings were correlated with chest CT, chest radiographs, laboratory tests and/or clinical status. Diffuse intrathoracic uptake without evidence of pathologic condition was categorized as indeterminate. The association between clinical characteristics and intrathoracic uptake were analyzed for negative intrathoracic uptake and indeterminate uptake groups. RESULTS Diffuse intrathoracic uptake on post-therapy scans was demonstrated in 39 out of 755 (5.2 %) patients, among which 3 were confirmed as lung metastasis. The 14 patients that showed high Tg or anti-Tg Ab levels were considered to be at risk of having undetected micrometastasis on other imaging modalities. The remaining 22 were indeterminate (2.9 %).Upon comparison of negative intrathoracic uptake and indeterminate uptake groups, TSH stimulation by thyroid hormone withdrawal was shown to be significantly correlated with diffuse intrathoracic uptake (p < 0.05). CONCLUSION The frequency of diffuse intrathoracic uptake on post-therapy scans was 5.2 % and could be seen in thyroid cancer patients with underlying lung metastasis as well as those without definite pathologic condition. In the latter, there was a higher frequency for diffusely increased intrathoracic uptake in those who underwent thyroid hormone withdrawal rather than recombinant human TSH injection.
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Affiliation(s)
- Hyun Su Choi
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 505 Banpo-dong Seocho-gu, Seoul, 137-701 Republic of Korea
| | - Sung Hoon Kim
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 505 Banpo-dong Seocho-gu, Seoul, 137-701 Republic of Korea
| | - Sonya Youngju Park
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 505 Banpo-dong Seocho-gu, Seoul, 137-701 Republic of Korea
| | - Hye Lim Park
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 505 Banpo-dong Seocho-gu, Seoul, 137-701 Republic of Korea
| | - Ye Young Seo
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 505 Banpo-dong Seocho-gu, Seoul, 137-701 Republic of Korea
| | - Woo Hee Choi
- Department of Radiology, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, 93 Ji-Dong Paldal-gu, Suwon, Gyeonggi-do 442-723 Republic of Korea
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Choi HS, Yoo IR, Park HL, Choi EK, Kim SH, Lee WH. Role of 18F-FDG PET/CT in differentiation of a benign lesion and metastasis on the ribs of cancer patients. Clin Imaging 2014; 38:109-14. [DOI: 10.1016/j.clinimag.2013.11.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 10/27/2013] [Accepted: 11/19/2013] [Indexed: 11/29/2022]
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Tabung F, Steck SE, Ma Y, Ockene JK, Shivappa N, Hurley T, Liese AD, Zhang J, Shikany JM, Park HL, Millen AE, Martin LW, Jiao L, Hou L, Agalliu I, Hingle M, Liu S, Rosal MC, Hebert JR. Validation of the Dietary Inflammatory Index in the Women's Health Initiative. FASEB J 2013. [DOI: 10.1096/fasebj.27.1_supplement.lb382] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Y Ma
- UMass Med SchoolWorcesterMA
| | | | | | - T Hurley
- Univ of South CarolinaColumbiaSC
| | | | - J Zhang
- Univ of South CarolinaColumbiaSC
| | | | | | | | | | | | - L Hou
- Northwestern UnivChicagoIL
| | | | | | - S Liu
- Univ of CaliforniaLos AngelesCA
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Choi EK, Yoo IR, Park HL, Choi HS, Han EJ, Kim SH, Chung SK, O JH. Value of Surveillance (18)F-FDG PET/CT in Colorectal Cancer: Comparison with Conventional Imaging Studies. Nucl Med Mol Imaging 2012; 46:189-95. [PMID: 24900059 DOI: 10.1007/s13139-012-0145-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [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: 04/09/2012] [Revised: 05/23/2012] [Accepted: 05/24/2012] [Indexed: 12/11/2022] Open
Abstract
PURPOSE To assess the value of PET/CT for detecting local or distant recurrence in patients who undergo surgery for colorectal cancer (CRC) and to compare the accuracy of PET/CT to that of conventional imaging studies (CIS). METHODS Tumor surveillance PET/CT scans done between March 2005 and December 2009 of disease-free patients after surgery with or without adjuvant chemotherapy for CRC were retrospectively studied. CIS (serial enhanced CT from lung base to pelvis and plain chest radiograph) were performed within 1 month of PET/CT. We excluded patients with distant metastasis on initial staging, a known recurrent tumor, and a lack of follow-up imaging. The final diagnosis was based on at least 6 months of follow-up with colonoscopy, biopsy, and serial imaging studies in combination with carcinoembryonic antigen levels. RESULTS A total of 262 PET/CT scans of 245 patients were included. Local and distant recurrences were detected in 27 cases (10.3%). On case-based analysis, the overall sensitivity, specificity, and accuracy were 100, 97.0, and 97.3% for PET/CT and 85.1, 97.0, and 95.8% for CIS, respectively. On lesion-based analysis, PET/CT detected more lesions compared to CIS in local recurrence and lung metastasis. PET/CT and CIS detected the same number of lesions in abdominal lymph nodes, hepatic metastasis, and peritoneal carcinomatosis. PET/CT detected two more metachronous tumors than did CIS in the lung and thyroid gland. CONCLUSION PET/CT detected more recurrences in patients who underwent surgery for CRC than did CIS and had the additional advantage of evaluating the entire body during a single scan.
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Affiliation(s)
- Eun Kyoung Choi
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ie Ryung Yoo
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea ; Department of Nuclear Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seochogu Banpodong 505, Seoul, 137-701 Korea
| | - Hye Lim Park
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hyun Su Choi
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Eun Ji Han
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sung Hoon Kim
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Soo Kyo Chung
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Joo Hyun O
- Department of Radiology, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Lee HS, Rastelli A, Benyoucef M, Ding F, Kim TW, Park HL, Schmidt OG. Microphotoluminescence spectroscopy of single CdTe/ZnTe quantum dots grown on Si001 substrates. Nanotechnology 2009; 20:075705. [PMID: 19417433 DOI: 10.1088/0957-4484/20/7/075705] [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: 05/27/2023]
Abstract
We have studied the emission properties of single CdTe/ZnTe quantum dots (QDs) grown on Si(001) substrates by using molecular beam epitaxy and atomic layer epitaxy. The good quality of the QDs is attested by the resolution-limited emission, negligible background and absence of measurable spectral jitter or blinking. Power-dependent, polarization-dependent, and temperature-dependent microphotoluminescence spectroscopy measurements were performed to identify the exciton, the biexciton, and two oppositely charged excitons in the emission spectra of single QDs.
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Affiliation(s)
- H S Lee
- Institute for Integrative Nanosciences, IFW Dresden, Dresden, Germany.
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Hwang GS, Kim YH, Kim MK, Lee JH, Rha SW, Lim DS, Ro YM, Park HL. Gene Expression and Ultrastructural Remodeling in Persistent Atrial Fibrillation. Korean Circ J 2004. [DOI: 10.4070/kcj.2004.34.7.693] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- Gyo Seung Hwang
- Department of Cardiology, Ajou University School of Medicine, Suwon, Korea
| | - Young Hoon Kim
- Department of Cardiology, Ajou University School of Medicine, Suwon, Korea
| | - Meyong Kon Kim
- Department of Cardiology, Ajou University School of Medicine, Suwon, Korea
| | - Ji Hye Lee
- Department of Cardiology, Ajou University School of Medicine, Suwon, Korea
| | - Seung Woon Rha
- Department of Cardiology, Ajou University School of Medicine, Suwon, Korea
| | - Do Sun Lim
- Department of Cardiology, Ajou University School of Medicine, Suwon, Korea
| | - Yong Moo Ro
- Department of Cardiology, Ajou University School of Medicine, Suwon, Korea
| | - Hye Lim Park
- Department of Cardiology, Ajou University School of Medicine, Suwon, Korea
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Choi L, Han YN, Lee KT, Park KY, Kwak TS, Kwon SH, Park HL. Anti-lipid peroxidative principles from the stem bark of Kalopanax pictus Nakai. Arch Pharm Res 2001; 24:536-40. [PMID: 11794531 DOI: 10.1007/bf02975161] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [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: 10/21/2022]
Abstract
Hepatic lipid peroxide contents were examined in bromobenzene-treated rats firstly after the oral administration of MeOH extract of Kalopanax pictus stem barks, its n-BuOH fraction, EtOAc fraction and an alkaline hydrolysate of the n-BuOH fraction, and secondly after the intraperitoneal administration of hederagenin monodesmosides and bisdesmosides. Two hederagenin monodesmosides, kalopanaxsaponin A (KPS-A) and sapindoside C, exhibited significant anti-lipid peroxidation effects after intraperitoneal administration at doses of 10-30 micromole/kg, whereas their bisdesmosides did not exhibit any significant activity. These results suggest that it is the hederagenin monodesmosides that are responsible for anti-lipid peroxidation in vivo. The activity of KPS-A was established by the observation of decreased aminopyrine N-demethylase activity and increased epoxide hydrolase activity.
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Affiliation(s)
- L Choi
- College of Pharmacy, Kyungsung University, Pusan, Korea
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Park HL, Gray CS, O'Connell JE, Thomson RG. In re atrial fibrillation. J Am Geriatr Soc 2001; 49:99-100. [PMID: 11207858 DOI: 10.1046/j.1532-5415.2001.49017-10.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Park HL, Bai C, Platt KA, Matise MP, Beeghly A, Hui CC, Nakashima M, Joyner AL. Mouse Gli1 mutants are viable but have defects in SHH signaling in combination with a Gli2 mutation. Development 2000; 127:1593-605. [PMID: 10725236 DOI: 10.1242/dev.127.8.1593] [Citation(s) in RCA: 464] [Impact Index Per Article: 19.3] [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: 11/20/2022]
Abstract
The secreted factor Sonic hedgehog (SHH) is both required for and sufficient to induce multiple developmental processes, including ventralization of the CNS, branching morphogenesis of the lungs and anteroposterior patterning of the limbs. Based on analogy to the Drosophila Hh pathway, the multiple GLI transcription factors in vertebrates are likely to both transduce SHH signaling and repress Shh transcription. In order to discriminate between overlapping versus unique requirements for the three Gli genes in mice, we have produced a Gli1 mutant and analyzed the phenotypes of Gli1/Gli2 and Gli1/3 double mutants. Gli3(xt) mutants have polydactyly and dorsal CNS defects associated with ectopic Shh expression, indicating GLI3 plays a role in repressing Shh. In contrast, Gli2 mutants have five digits, but lack a floorplate, indicating that it is required to transduce SHH signaling in some tissues. Remarkably, mice homozygous for a Gli1(zfd)mutation that deletes the exons encoding the DNA-binding domain are viable and appear normal. Transgenic mice expressing a GLI1 protein lacking the zinc fingers can not induce SHH targets in the dorsal brain, indicating that the Gli1(zfd)allele contains a hypomorphic or null mutation. Interestingly, Gli1(zfd/zfd);Gli2(zfd/+), but not Gli1(zfd/zfd);Gli3(zfd/+) double mutants have a severe phenotype; most Gli1(zfd/zfd);Gli2(zfd/+) mice die soon after birth and all have multiple defects including a variable loss of ventral spinal cord cells and smaller lungs that are similar to, but less extreme than, Gli2(zfd/zfd) mutants. Gli1/Gli2 double homozygous mutants have more extreme CNS and lung defects than Gli1(zfd/zfd);Gli2(zfd/+) mutants, however, in contrast to Shh mutants, ventrolateral neurons develop in the CNS and the limbs have 5 digits with an extra postaxial nubbin. These studies demonstrate that the zinc-finger DNA-binding domain of GLI1 protein is not required for SHH signaling in mouse. Furthermore, Gli1 and Gli2, but not Gli1 and Gli3, have extensive overlapping functions that are likely downstream of SHH signaling.
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Affiliation(s)
- H L Park
- Howard Hughes Medical Institute and Developmental Genetics Program, Skirball Institute of Biomolecular Medicine, Department of Cell Biology and Physiology and Neuroscience, New York University Medical School, New York, NY 10016, USA
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Matise MP, Epstein DJ, Park HL, Platt KA, Joyner AL. Gli2 is required for induction of floor plate and adjacent cells, but not most ventral neurons in the mouse central nervous system. Development 1998; 125:2759-70. [PMID: 9655799 DOI: 10.1242/dev.125.15.2759] [Citation(s) in RCA: 335] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Induction of the floor plate at the ventral midline of the neural tube is one of the earliest events in the establishment of dorsoventral (d/v) polarity in the vertebrate central nervous system (CNS). The secreted molecule, Sonic hedgehog, has been shown to be both necessary and sufficient for this induction. In vertebrates, several downstream components of this signalling pathway have been identified, including members of the Gli transcription factor family. In this study, we have examined d/v patterning of the CNS in Gli2 mouse mutants. We have found that the floor plate throughout the midbrain, hindbrain and spinal cord does not form in Gli2 homozygotes. Despite this, motoneurons and ventral interneurons form in their normal d/v positions at 9.5 to 12.5 days postcoitum (dpc). However, cells that are generated in the region flanking the floor plate, including dopaminergic and serotonergic neurons, were greatly reduced in number or absent in Gli2 homozygous embryos. These results suggest that early signals derived from the notochord can be sufficient for establishing the basic d/v domains of cell differentiation in the ventral spinal cord and hindbrain. Interestingly, the notochord in Gli2 mutants does not regress ventrally after 10.5 dpc, as in normal embryos. Finally, the spinal cord of Gli1/Gli2 zinc-finger-deletion double homozygous mutants appeared similar to Gli2 homozygotes, indicating that neither gene is required downstream of Shh for the early development of ventral cell fates outside the ventral midline.
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Affiliation(s)
- M P Matise
- Developmental Genetics Program and Howard Hughes Medical Institute, and Department of Cell Biology and Physiology and Neuroscience, NYU Medical Center, New York, NY 10016, USA
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Hwang YN, Shin S, Park HL, Park SH, Kim U, Jeong HS, Shin E, Kim D. Effect of lattice contraction on the Raman shifts of CdSe quantum dots in glass matrices. Phys Rev B Condens Matter 1996; 54:15120-15124. [PMID: 9985571 DOI: 10.1103/physrevb.54.15120] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Kim TW, Jung M, Park HL, Lee SD. Transition behavior from coupled to uncoupled CdTe/ZnTe asymmetric double quantum wells. Phys Rev B Condens Matter 1995; 52:1467-1469. [PMID: 9981196 DOI: 10.1103/physrevb.52.1467] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Nakajima H, Park HL, Henkart PA. Synergistic roles of granzymes A and B in mediating target cell death by rat basophilic leukemia mast cell tumors also expressing cytolysin/perforin. J Exp Med 1995; 181:1037-46. [PMID: 7869027 PMCID: PMC2191929 DOI: 10.1084/jem.181.3.1037] [Citation(s) in RCA: 117] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
We have studied the cytotoxic activity of rat basophilic leukemia (RBL) cells transfected with cDNAs for the cytotoxic T lymphocyte (CTL) granule components, cytolysin (perforin), granzyme A, and granzyme B. With red cell targets, cytolysin expression conferred potent hemolytic activity, which was not influenced by coexpression of granzymes. With tumor targets, RBL cells expressing cytolysin alone were weakly cytotoxic, but both cytolytic and nucleolytic activity were enhanced by coexpression of granzyme B. RBL cells expressing all three CTL granule components showed still higher cytotoxic activities, with apoptotic target death. Analysis of the cytotoxic activity of individual transfectant clones showed that cytolytic and nucleolytic activity correlated with granzyme expression but was independent of cytolysin expression within the range examined. A synergism between granzymes A and B was apparent when the triple transfectant was compared with RBL cells expressing cytolysin and one granzyme. These data implicate granzymes as the major mediators of tumor target damage by cytotoxic lymphocytes.
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Affiliation(s)
- H Nakajima
- Experimental Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892
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Kim YG, Kim HG, Kim WT, Kim JS, Ma DS, Park HL. Erratum: Impurity photoconductivity spectra of ZnGa2Se4:Co2+ single crystals. Phys Rev B Condens Matter 1990; 42:7260. [PMID: 9994859 DOI: 10.1103/physrevb.42.7260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Kim YG, Kim HG, Kim WT, Kim JS, Ma DS, Park HL. Impurity photoconductivity spectra of ZnGa2Se4:Co2+ single crystals. Phys Rev B Condens Matter 1989; 39:8747-8749. [PMID: 9947596 DOI: 10.1103/physrevb.39.8747] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Kim CD, Cho TS, Kim JK, Kim WT, Park HL. Spin-orbit coupling effects in CdGa2Se4:Co2+ single crystals. Phys Rev B Condens Matter 1987; 36:9283-9285. [PMID: 9942799 DOI: 10.1103/physrevb.36.9283] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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