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Jin T, Park KS, Nam SE, Lim SH, Kim JH, Noh WC, Yoo YB, Park WS, Yun IJ. CTLA4 expression profiles and their association with clinical outcomes of breast cancer: a systemic review. Ann Surg Treat Res 2024; 106:263-273. [PMID: 38725802 PMCID: PMC11076949 DOI: 10.4174/astr.2024.106.5.263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/16/2024] [Accepted: 03/03/2024] [Indexed: 05/12/2024] Open
Abstract
Purpose The cytotoxic T-lymphocyte-associated protein 4 (CTLA4) is involved in the progression of various cancers, but its biological roles in breast cancer (BRCA) remain unclear. Therefore, we performed a systematic multiomic analysis to expound on the prognostic value and underlying mechanism of CTLA4 in BRCA. Methods We assessed the effect of CTLA4 expression on BRCA using a variety of bioinformatics platforms, including Oncomine, GEPIA, UALCAN, PrognoScan database, Kaplan-Meier plotter, and R2: Kaplan-Meier scanner. Results CTLA4 was highly expressed in BRCA tumor tissue compared to normal tissue (P < 0.01). The CTLA4 messenger RNA levels in BRCA based on BRCA subtypes of Luminal, human epidermal growth factor receptor 2, and triple-negative BRCA were considerably higher than in normal tissues (P < 0.001). However, the overexpression of CTLA4 was associated with a better prognosis in BRCA (P < 0.001) and was correlated with clinicopathological characteristics including age, T stage, estrogen receptors, progesterone receptors, and prediction analysis of microarray 50 (P < 0.01). The infiltration of multiple immune cells was associated with increased CTLA4 expression in BRCA (P < 0.001). CTLA4 was highly enriched in antigen binding, immunoglobulin complexes, lymphocyte-mediated immunity, and cytokine-cytokine receptor interaction. Conclusion This study provides suggestive evidence of the prognostic role of CTLA4 in BRCA, which may be a therapeutic target for BRCA. Furthermore, CTLA4 may influence BRCA prognosis through antigen binding, immunoglobulin complexes, lymphocyte-mediated immunity, and cytokine-cytokine receptor interaction. These findings help us understand how CTLA4 plays a role in BRCA and set the stage for more research.
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Affiliation(s)
- TongYi Jin
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
| | - Kyoung Sik Park
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
- Department of Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Sang Eun Nam
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
- Department of Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Seung Hwan Lim
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
- Department of Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Jong Hyun Kim
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
- Department of Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Woo Chul Noh
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
- Department of Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Young Bum Yoo
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
- Department of Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Won Seo Park
- Department of Surgery, Kyung Hee University School of Medicine, Seoul, Korea
| | - Ik Jin Yun
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
- Department of Surgery, Konkuk University Medical Center, Seoul, Korea
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Park MS, Park WS, Nam D, Min SY, Chae S. Efficacy of electroacupuncture in preventing nausea and vomiting after thyroidectomy: A prospective randomized controlled trial. Asian J Surg 2023; 46:3480-3484. [PMID: 36369133 DOI: 10.1016/j.asjsur.2022.10.080] [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: 06/16/2022] [Revised: 08/16/2022] [Accepted: 10/27/2022] [Indexed: 11/09/2022] Open
Abstract
OBJECTIVE Postoperative nausea and vomiting are regarded as a serious concern after thyroidectomy. Electroacupuncture shows the potential to reduce general anesthesia-related side effects. The aim of this study was to evaluate the efficacy of electroacupuncture in preventing postoperative nausea and vomiting that commonly occurs in patients after thyroidectomy. METHODS This study was a prospective randomized controlled trial with a two-arm, patient blind structure. Sixty-four participants were randomly assigned to the acupuncture (n = 35) or control (n = 29) group. Patients in the acupuncture group received electroacupuncture and intradermal press needles. The primary endpoint was the incidence and severity of postoperative nausea and vomiting, and secondary endpoints were the length of hospital stay, pain severity, and postoperative in-hospital morbidity. RESULTS The total incidence of postoperative nausea and vomiting was 40.6% (26/64). There was no difference in the incidence between the control (10/29, 34.5%) and acupuncture (16/35, 45.7%) groups (p = 0.362). The severity of postoperative nausea and vomiting was not different between the groups (p = 0.842). Length of hospitalization and postoperative complications were not different between the groups. CONCLUSION In this randomized controlled trial, electroacupuncture treatment after thyroidectomy is safe and comparable to conventional anti-emetic therapy. TRIAL REGISTRATION Clinical Research Information Service, KCT0001782. Registered on 26 January 2016.
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Affiliation(s)
- Min-Su Park
- Department of Surgery, School of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Won Seo Park
- Department of Surgery, School of Medicine, Kyung Hee University, Seoul, Republic of Korea.
| | - Dongwoo Nam
- Department of Acupuncture and Moxibustion, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Sun Young Min
- Department of Surgery, School of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Sumin Chae
- Department of Surgery, School of Medicine, Kyung Hee University, Seoul, Republic of Korea
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Hong SW, Kim JH, Cha HA, Chung KS, Bae HJ, Park WS, Ham JS, Park BY, Oh MH. Identification and Characterization of a Bacteriocin from the Newly Isolated Bacillus subtilis HD15 with Inhibitory Effects against Bacillus cereus. J Microbiol Biotechnol 2022; 32:1462-1470. [PMID: 36310361 PMCID: PMC9720079 DOI: 10.4014/jmb.2208.08006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/11/2022] [Accepted: 10/11/2022] [Indexed: 11/29/2022]
Abstract
Natural antimicrobial substances are needed as alternatives to synthetic antimicrobials to protect against foodborne pathogens. In this study, a bacteriocin-producing bacterium, Bacillus subtilis HD15, was isolated from doenjang, a traditional Korean fermented soybean paste. We sequenced the complete genome of B. subtilis HD15. This genome size was 4,173,431 bp with a G + C content of of 43.58%, 4,305 genes, and 4,222 protein-coding genes with predicted functions, including a subtilosin A gene cluster. The bacteriocin was purified by ammonium sulfate precipitation, Diethylaminoethanol-Sepharose chromatography, and Sephacryl gel filtration, with 12.4-fold purification and 26.2% yield, respectively. The purified protein had a molecular weight of 3.6 kDa. The N-terminal amino acid sequence showed the highest similarity to Bacillus subtilis 168 subtilosin A (78%) but only 68% similarity to B. tequilensis subtilosin proteins, indicating that the antimicrobial substance isolated from B. subtilis HD15 is a novel bacteriocin related to subtilosin A. The purified protein from B. subtilis HD15 exhibited high antimicrobial activity against Listeria monocytogenes and Bacillus cereus. It showed stable activity in the range 0-70°C and pH 2-10 and was completely inhibited by protease, proteinase K, and pronase E treatment, suggesting that it is a proteinaceous substance. These findings support the potential industrial applications of the novel bacteriocin purified from B. subtilis HD15.
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Affiliation(s)
- Sung Wook Hong
- Technology Innovation Research Division, World Institute of Kimchi, Gwangju 61755, Republic of Korea
| | - Jong-Hui Kim
- National Institute of Animal Science, Rural Development Administration, Wanju 55365, Republic of Korea
| | - Hyun A Cha
- National Institute of Animal Science, Rural Development Administration, Wanju 55365, Republic of Korea
| | - Kun Sub Chung
- Division of Biological Science and Technology, Yonsei University, Wonju 26493, Republic of Korea
| | - Hyo Ju Bae
- National Institute of Animal Science, Rural Development Administration, Wanju 55365, Republic of Korea
| | - Won Seo Park
- National Institute of Animal Science, Rural Development Administration, Wanju 55365, Republic of Korea
| | - Jun-Sang Ham
- National Institute of Animal Science, Rural Development Administration, Wanju 55365, Republic of Korea
| | - Beom-Young Park
- National Institute of Animal Science, Rural Development Administration, Wanju 55365, Republic of Korea
| | - Mi-Hwa Oh
- National Institute of Animal Science, Rural Development Administration, Wanju 55365, Republic of Korea,Corresponding author Phone: +82-63-238-7379 Fax: +82-63-238-7397 E-mail:
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Nam SE, Jin T, Park KS, Saindane M, Noh WC, Yoo YB, Park WS, Yun IJ. Vitamin D receptor ( VDR) mRNA overexpression is associated with poor prognosis in breast carcinoma. Ann Surg Treat Res 2022; 103:183-194. [PMID: 36304189 PMCID: PMC9582618 DOI: 10.4174/astr.2022.103.4.183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/07/2022] [Accepted: 09/17/2022] [Indexed: 11/30/2022] Open
Abstract
Purpose The prognostic value of vitamin D receptor gene (VDR) expression in breast cancer development is unclear. Here, we aimed to investigate whether VDR expression can be used as a prognostic indicator of breast cancer. Methods We used various public bioinformatics platforms: Oncomine, GEPIA, UALCAN, Kaplan-Meier plotter, UCSC XENA, bc-GenExMiner, WebGestalt, and STRING database. Results We found that VDR was upregulated in breast cancer in comparison to normal tissues. Overexpression of VDR was significantly associated with worse overall survival in breast cancer. The expression of VDR was related to age, TNM stages, estrogen receptor status, progesterone receptor status, human epidermal growth factor receptor 2 status, basal-like (PAM 50) status, triple-negative breast cancer (TNBC) status, and basal-like (PAM 50) & TNBC status (P < 0.05). Increased VDR expression in breast cancer was significantly associated with older age. The 5 hub genes for VDR were NCOA1, EP300, CREBBP, and RXRA. Conclusion Our investigation offers hints about the prognostic role of VDR in breast cancer. The findings suggest that VDR expression might be used as a marker to determine a breast cancer patient's prognosis. Nevertheless, further validation is warranted.
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Affiliation(s)
- Sang Eun Nam
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea.,Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea.,Department of Surgery, Konkuk University Medical Center, Seoul, Korea
| | - TongYi Jin
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea.,Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
| | - Kyoung Sik Park
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea.,Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea.,Department of Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Madhuri Saindane
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea.,Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
| | - Woo Chul Noh
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea.,Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
| | - Young Bum Yoo
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea.,Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea.,Department of Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Won Seo Park
- Department of Surgery, Kyung Hee University School of Medicine, Seoul, Korea
| | - Ik Jin Yun
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea.,Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea.,Department of Surgery, Konkuk University Medical Center, Seoul, Korea
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Jin TY, Park KS, Nam SE, Yoo YB, Park WS, Yun IJ. BRCA1/2 Serves as a Biomarker for Poor Prognosis in Breast Carcinoma. Int J Mol Sci 2022; 23:ijms23073754. [PMID: 35409110 PMCID: PMC8998777 DOI: 10.3390/ijms23073754] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 03/24/2022] [Accepted: 03/27/2022] [Indexed: 11/16/2022] Open
Abstract
BRCA1/2 are breast cancer susceptibility genes that are involved in DNA repair and transcriptional control. They are dysregulated in breast cancer, making them attractive therapeutic targets. Here, we performed a systematic multiomics analysis to expound BRCA1/2 functions as prognostic biomarkers in breast cancer. First, using different web-based bioinformatics platforms (Oncomine, TIMER 2.0, UALCAN, and cBioportal), the expression of BRCA1/2 was assessed. Then, the R package was used to analyze the diagnostic value of BRCA1/2 in patients. Next, we determined the relationship between BRCA1/2 mRNA expression and prognosis in patients (PrognoScan Database, R2: Kaplan Meier Scanner and Kaplan−Meier Plotter). Subsequently, the association of BRCA1/2 with mutation frequency alteration and copy number alterations in breast cancer was investigated using the cBioportal platform. After that, we identified known and predicted structural genes and proteins essential for BRCA1/2 functions using GeneMania and STRING db. Finally, GO and KEGG pathway enrichment analyses were performed to elucidate the potential biological functions of the co-expression genes of BRCA1/2. The BRCA1/2 mRNA level in breast cancer tissues was considerably higher than in normal tissues, with AUCs of 0.766 and 0.829, respectively. Overexpression of BRCA1/2 was significantly related to the worse overall survival (p < 0.001) and was correlated to clinicopathological characteristics including lymph nodes, estrogen receptors, and progesterone receptors (p < 0.01). The alteration frequencies of both the gens have been checked, and the results show that BRCA1 and BRCA2 show different alteration frequencies. Their mutation sites differ from each other. GO and KEGG showed that BRCA1/2 was mainly enriched in catalytic activity, acting on DNA, chromosomal region, organelle fission, cell cycle, etc. The 20 most frequently changed genes were closely related to BRCA1/2, including PALB2 and RAD51 relatively. Our study provides suggestive evidence of the prognostic role of BRCA1/2 in breast cancer and the therapeutic target for breast cancer. Furthermore, BRCA1/2 may influence BRCA prognosis through catalytic activity, acting on DNA, chromosomal regions, organelle fission, and the cell cycle. Nevertheless, further validation is warranted.
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Affiliation(s)
- Tong Yi Jin
- Department of Surgery, Konkuk University School of Medicine, Seoul 05030, Korea; (T.Y.J.); (S.E.N.); (Y.B.Y.); (I.J.Y.)
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul 05030, Korea
| | - Kyoung Sik Park
- Department of Surgery, Konkuk University School of Medicine, Seoul 05030, Korea; (T.Y.J.); (S.E.N.); (Y.B.Y.); (I.J.Y.)
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul 05030, Korea
- Department of Surgery, Konkuk University Medical Center, Seoul 05030, Korea
- Correspondence:
| | - Sang Eun Nam
- Department of Surgery, Konkuk University School of Medicine, Seoul 05030, Korea; (T.Y.J.); (S.E.N.); (Y.B.Y.); (I.J.Y.)
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul 05030, Korea
- Department of Surgery, Konkuk University Medical Center, Seoul 05030, Korea
| | - Young Bum Yoo
- Department of Surgery, Konkuk University School of Medicine, Seoul 05030, Korea; (T.Y.J.); (S.E.N.); (Y.B.Y.); (I.J.Y.)
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul 05030, Korea
- Department of Surgery, Konkuk University Medical Center, Seoul 05030, Korea
| | - Won Seo Park
- Department of Surgery, Kyung Hee University School of Medicine, Seoul 02447, Korea;
| | - Ik Jin Yun
- Department of Surgery, Konkuk University School of Medicine, Seoul 05030, Korea; (T.Y.J.); (S.E.N.); (Y.B.Y.); (I.J.Y.)
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul 05030, Korea
- Department of Surgery, Konkuk University Medical Center, Seoul 05030, Korea
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Ryu S, Park WS, Yun B, Shin M, Go GW, Kim JN, Oh S, Kim Y. Diversity and characteristics of raw milk microbiota from Korean dairy farms using metagenomic and culturomic analysis. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.108160] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Park KS, Saindane M, Yang EY, Jin T, Rallabandi HR, Heil A, Nam SE, Yoo YB, Yang JH, Kim JB, Park SY, Park WS, Youn YK. Selective inhibition of V600E-mutant BRAF gene induces apoptosis in thyroid carcinoma cell lines. Ann Surg Treat Res 2021; 100:127-136. [PMID: 33748026 PMCID: PMC7943282 DOI: 10.4174/astr.2021.100.3.127] [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: 01/04/2021] [Revised: 01/28/2021] [Accepted: 02/02/2021] [Indexed: 12/12/2022] Open
Abstract
Purpose Papillary thyroid cancer (PTC) has a high incidence of BRAFV600E mutation. The purpose of this study was to evaluate the potential relationship between thyroiditis and BRAFV600E mutation status in patients with PTC. We investigated how a selective inhibitor of BRAFV600E PLX4032 affects the proliferation and inflammatory cytokine levels of thyroid cancer. Methods Two thyroid cancer cell lines TPC1 and 8505C were treated with PLX4032, an analysis was done on cell growth, cell cycle, the degree of apoptosis, and levels of inflammatory cytokines. To identify the functional links of BRAF, we used the STRING database. Results Docking results illustrated PLX4032 blocked the kinase activity by exclusively binding on the serine/threonine kinase domain. STRING results indicated BRAF is functionally linked to mitogen-activated protein kinase. Both cell lines showed a dose-dependent reduction in growth rate but had a different half maximal inhibitory concentration value for PLX4032. The reaction to PLX4032 was more sensitive in the 8505C cells than in the TPC1 cells. PLX4032 induced a G2/M phase arrest in the TPC1 cells and G0/G1 in the 8505C cells. PLX4032 induced apoptosis only in the 8505C cells. With PLX4032, the TPC1 cells showed decreased levels of vascular endothelial growth factor, granulocyte-macrophage colony-stimulating factor, chemokine (C-C motif) ligand 2/monocyte chemoattractant protein 1, whereas the 8505C cells showed significantly decreased levels of IL-8, serpin E1/plasminogen activator inhibitor-1, and matrix metalloproteinase (MMP)-3. Conclusion PLX4032 was cytotoxic in both TPC1 and 8505C cells and induced apoptosis. In the 8505C cells, inflammatory cytokines such as IL-8 and MMP-3 were down-regulated. These findings suggest the possibility that the BRAFV600E mutation needs to target inflammatory signaling pathways in the treatment of thyroid cancer.
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Affiliation(s)
- Kyoung Sik Park
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea.,Department of Surgery, Konkuk University Medical Center, Seoul, Korea.,Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
| | - Madhuri Saindane
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea.,Department of Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Eun Yeol Yang
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
| | - TongYi Jin
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
| | - Harikrishna Reddy Rallabandi
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea.,Department of Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Alexander Heil
- Institute of Botany and Molecular Genetics, RWTH, Aachen University, Aachen, Germany
| | - Sang Eun Nam
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea.,Department of Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Young Bum Yoo
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea.,Department of Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Jung-Hyun Yang
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea.,Department of Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Jong Bin Kim
- Research Centers for Cellular Homeostasis, Ewha Womans University, Seoul, Korea
| | - Seo-Young Park
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Won Seo Park
- Department of Surgery, School of Medicine, Kyung Hee University, Seoul, Korea
| | - Yeo-Kyu Youn
- Thyroid Clinic, St. Peter's Hospital, Seoul, Korea
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Han DY, Sohn YM, Seo M, Yun SJ, Park WS, Jeon SH, Cho YH. Shear-wave elastography in thyroid ultrasound: Can be a predictor of extrathyroidal extension and cervical lymph node metastasis in papillary thyroid carcinoma? Medicine (Baltimore) 2020; 99:e23654. [PMID: 33350745 PMCID: PMC7769340 DOI: 10.1097/md.0000000000023654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 11/12/2020] [Indexed: 11/25/2022] Open
Abstract
This study aimed to investigate whether extrathyroidal extension (ETE) and cervical lymph node metastasis (LNM) can be predicted using elasticity parameters of shear-wave elastography (SWE) combined with B-mode ultrasound (US) of papillary thyroid carcinomas (PTCs).We retrospectively reviewed 111 patients who underwent preoperative SWE evaluation among PTC patients from July 1, 2016 to June 20, 2018. Patients were divided into 2 groups based on the presence or absence of ETE based on pathology reports. Univariate and multivariate analyses of clinical and radiologic features including B-mode US features, US patterns, and SWE parameters were performed. These analyses were repeated in LNM positive and negative groups. The diagnostic performance of SWE parameters were also evaluated.Of the 111 patients, 33 had ETE, 78 did not have ETE, 44 had LNM, and 67 did not have LNM. A taller-than-wide shape and T3 stage on US were associated with ETE. Female sex, total thyroidectomy, and T3 stage on US were associated with LNM. When B-mode US and SWE were combined, there was no improvement in diagnostic performance.Combination of SWE and B-mode US findings is not useful for predicting ETE and LNM status in PTC patients.
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Affiliation(s)
- Dong Yoon Han
- Department of Radiology, Kyung Hee University Hospital, College of Medicine, Kyung Hee University, Seoul
| | - Yu-Mee Sohn
- Department of Radiology, Kyung Hee University Hospital, College of Medicine, Kyung Hee University, Seoul
| | - Mirinae Seo
- Department of Radiology, Kyung Hee University Hospital, College of Medicine, Kyung Hee University, Seoul
| | - Seong Jong Yun
- Department of Radiology, G SAM Hospital, 591 Gunpo-ro, Gunpo-si, Gyeonggi-do
| | - Won Seo Park
- Department of Surgery, Kyung Hee University Hospital, College of Medicine, Kyung Hee University
| | - Seok Ho Jeon
- Department of Anesthesiology and Pain Medicine, Seoul Sacred Heart General Hospital, 259 Wangsan-ro, Dongdaemun-gu, Seoul, South Korea
| | - Yong Hyun Cho
- Department of Anesthesiology and Pain Medicine, Seoul Sacred Heart General Hospital, 259 Wangsan-ro, Dongdaemun-gu, Seoul, South Korea
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Yang SM, Park WS, You JY, Park DW, Kangleon-Tan HL, Kim HK, Dionigi G, Kim HY, Tufano RP. Comparison of postoperative outcomes between bilateral axillo-breast approach-robotic thyroidectomy and transoral robotic thyroidectomy. Gland Surg 2020; 9:1998-2004. [PMID: 33447550 DOI: 10.21037/gs-20-468] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background The use of robotic systems for thyroidectomy has increased as it enables more diverse approaches than the conventional open method. The aim of this study was to compare the clinical outcomes of Transoral Robotic Thyroidectomy (TORT) and Bilateral Axillo-Breast Approach-Robotic Thyroidectomy (BABA-RT). Methods This study was designed as a retrospective study. The included patients who underwent surgery by BABA-RT or TORT approach in our facility between 2008 and 2018. All surgeries were performed by one surgeon. Total thyroidectomy with central node dissection (CND) was performed only if tumors were >4 cm and had extrathyroidal extension, clinically apparent lymph node or distant metastases. In all other cases, lobectomy ± CND was performed. Results The group treated with TORT comprised 248 patients and the group that underwent BABA-RT had 316 patients. The number of retrieved lymph node (LN) was higher in the TORT group (4.9±4.4 vs. 4.2±4.9; P=0.01). There were no significant differences between the TORT and BABA-RT groups in concerns to the location of the tumor. Postoperative hospital stay was also shorter in the TORT group when compared with the BABA-RT group (2.8±0.90 vs. 3.4±0.97 days, P=0.012). Operative time was significantly shorter in the TORT group (204.11±40.19 vs. 243.78±57.16 min, P<0.01). Conclusions When comparing a total of 248 patients treated with TORT versus 316 with BABA-RT. TORT not only has advantages in better cosmetic outcomes with minimized postoperative scars, but also shows comparable, or even superior, surgical outcomes with shorter operation time than the BABA-RT procedure.
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Affiliation(s)
- Sun Moon Yang
- Department of Surgery, KUMC Thyroid Center, Korea University Hospital, Korea University College of Medicine, Seoul, Korea
| | - Won Seo Park
- Department of Surgery, Kyung Hee University School of Medicine, Seoul, Korea
| | - Ji Young You
- Department of Surgery, KUMC Thyroid Center, Korea University Hospital, Korea University College of Medicine, Seoul, Korea
| | - Da Won Park
- Department of Surgery, KUMC Thyroid Center, Korea University Hospital, Korea University College of Medicine, Seoul, Korea
| | | | - Hong Kyu Kim
- Department of Surgery, Seoul National University Hospital, Seoul, Korea
| | - Gianlorenzo Dionigi
- Division for Endocrine and Minimal Invasive Surgery, Department of Human Pathology in Adulthood and Childhood "G.Barresi', University Hospital "G.Martino", University of Messina, Messina, Italy
| | - Hoon Yub Kim
- Department of Surgery, KUMC Thyroid Center, Korea University Hospital, Korea University College of Medicine, Seoul, Korea
| | - Ralph P Tufano
- Department of Otolaryngology - Head and Neck Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Lee JH, Youn S, Jung S, Kim K, Chai YJ, Chung YS, Park WS, Lee KE, Yi KH. A national database analysis for factors associated with thyroid cancer occurrence. Sci Rep 2020; 10:17791. [PMID: 33082385 PMCID: PMC7576121 DOI: 10.1038/s41598-020-74546-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 09/30/2020] [Indexed: 01/08/2023] Open
Abstract
In order to analyze the associations between thyroid cancer and environmental factors, we analyzed the national sample cohort representative of the entire population provided by the Korean National Health Insurance Service database record from 2006 to 2015. The cohort was categorized according to age, body mass index, income, residential areas, frequency of exercise, frequency of alcohol drinking, diet, presence or absence of hyperthyroidism, presence or absence of hypothyroidism, and smoking data. Age ≥ 55 years (HR 0.68, 95% CI 0.53–0.88), lower income (0.57, 0.40–0.80), and current smoking (0.69, 0.55–0.85) were associated with lower thyroid cancer occurrence among men. Body mass index (BMI) ≥ 25 kg/m2 (1.51, 1.26–1.82), higher income (1.44, 1.19–1.76), urban residence (1.24, 1.03–1.49), and presence of hypothyroidism (3.31, 2.38–4.61) or hyperthyroidism (2.46, 1.75–3.46) were associated with higher thyroid cancer occurrence among men. Age ≥ 55 years (0.63, 0.56–0.71), moderate alcohol drinking (0.87, 0.77–0.99), and current smoking (0.56, 0.37–0.85) were associated with lower thyroid cancer occurrence among women. BMI ≥ 25 kg/m2 (1.41, 1.26–1.57), frequent exercise (1.21, 1.07–1.36), higher income (1.18, 1.06–1.32), urban residence (1.17, 1.06–1.29), and presence of hypothyroidism (1.60, 1.40–1.82) or hyperthyroidism (1.38, 1.19–1.61) were associated with higher thyroid cancer occurrence among women. In conclusion, age ≥ 55 years and current smoking were associated with lower thyroid cancer occurrence, while BMI ≥ 25 kg/m2, higher income, urban residence, hypothyroidism, and hyperthyroidism were associated with higher occurrence in both men and women.
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Affiliation(s)
- Joon-Hyop Lee
- Department of Surgery, Gachon University College of Medicine, Gil Medical Center, Incheon, Korea
| | - Sora Youn
- Division of Clinical Bioinformatics, Biomedical Research Institute, Seoul National University Hospital, 71 Daehak-ro, Jongno-gu, Seoul, 03082, Korea
| | - Sohee Jung
- Division of Clinical Bioinformatics, Biomedical Research Institute, Seoul National University Hospital, 71 Daehak-ro, Jongno-gu, Seoul, 03082, Korea
| | - Kwangsoo Kim
- Division of Clinical Bioinformatics, Biomedical Research Institute, Seoul National University Hospital, 71 Daehak-ro, Jongno-gu, Seoul, 03082, Korea.
| | - Young Jun Chai
- Department of Surgery, Seoul National University Boramae Medical Center, 20 Boramaep-ro 5-gil, Dongjak-gu, Seoul, 07061, Korea.
| | - Yoo Seung Chung
- Department of Surgery, Gachon University College of Medicine, Gil Medical Center, Incheon, Korea
| | - Won Seo Park
- Department of Surgery, Kyung Hee University School of Medicine, Seoul, Korea
| | - Kyu Eun Lee
- Department of Surgery, Seoul National University Hospital, Seoul, Korea
| | - Ka Hee Yi
- Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea
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11
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Kandasamy S, Park WS, Yoo J, Yun J, Kang HB, Seol KH, Oh MH, Ham JS. Characterisation of fungal contamination sources for use in quality management of cheese production farms in Korea. Asian-Australas J Anim Sci 2020; 33:1002-1011. [PMID: 32054221 PMCID: PMC7206383 DOI: 10.5713/ajas.19.0553] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 08/20/2019] [Accepted: 09/30/2019] [Indexed: 11/27/2022]
Abstract
OBJECTIVE This study was conducted to determine the composition and diversity of the fungal flora at various control points in cheese ripening rooms of 10 dairy farms from six different provinces in the Republic of Korea. METHODS Floor, wall, cheese board, room air, cheese rind and core were sampled from cheese ripening rooms of ten different dairy farms. The molds were enumerated using YM petrifilm, while isolation was done on yeast extract glucose chloramphenicol agar plates. Morphologically distinct isolates were identified using sequencing of internal transcribed spacer region. RESULTS The fungal counts in 8 out of 10 dairy farms were out of acceptable range, as per hazard analysis critical control point regulation. A total of 986 fungal isolates identified and assigned to the phyla Ascomycota (14 genera) and Basidiomycota (3 genera). Of these Penicillium, Aspergillus, and Cladosporium were the most diverse and predominant. The cheese ripening rooms was overrepresented in 9 farms by Penicillium (76%), while Aspergillusin a single farm. Among 39 species, the prominent members were Penicillium commune, P. oxalicum, P. echinulatum, and Aspergillus versicolor. Most of the mold species detected on surfaces were the same found in the indoor air of cheese ripening rooms. CONCLUSION The environment of cheese ripening rooms persuades a favourable niche for mold growth. The fungal diversity in the dairy farms were greatly influenced by several factors (exterior atmosphere, working personnel etc.,) and their proportion varied from one to another. Proper management of hygienic and production practices and air filtration system would be effective to eradicate contamination in cheese processing industries.
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Affiliation(s)
- Sujatha Kandasamy
- Animal Products Research and Development Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365,
Korea
| | - Won Seo Park
- Animal Products Research and Development Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365,
Korea
| | - Jayeon Yoo
- Animal Products Research and Development Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365,
Korea
| | - Jeonghee Yun
- Animal Products Research and Development Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365,
Korea
| | - Han Byul Kang
- Animal Products Research and Development Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365,
Korea
| | - Kuk-Hwan Seol
- Animal Products Research and Development Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365,
Korea
| | - Mi-Hwa Oh
- Animal Products Research and Development Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365,
Korea
| | - Jun Sang Ham
- Animal Products Research and Development Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365,
Korea
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12
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Yeon EK, Sohn YM, Seo M, Kim EJ, Eun YG, Park WS, Yun SJ. Diagnostic Performance of a Combination of Shear Wave Elastography and B-Mode Ultrasonography in Differentiating Benign From Malignant Thyroid Nodules. Clin Exp Otorhinolaryngol 2020; 13:186-193. [PMID: 32156104 PMCID: PMC7248619 DOI: 10.21053/ceo.2019.01235] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 10/28/2019] [Indexed: 11/22/2022] Open
Abstract
Objectives This study was conducted to compare clinicopathologic and radiologic factors between benign and malignant thyroid nodules and to evaluate the diagnostic performance of shear wave elastography (SWE) combined with B-mode ultrasonography (US) in differentiating malignant from benign thyroid nodules. Methods This retrospective study included 92 consecutive patients with 95 thyroid nodules examined on B-mode US and SWE before US-guided fine-needle aspiration biopsy or surgical excision. B-mode US findings (composition, echogenicity, margin, shape, and calcification) and SWE elasticity parameters (maximum [Emax], mean, minimum, and nodule-to-normal parenchymal ratio of elasticity) were reviewed and compared between benign and malignant thyroid nodules. The diagnostic performance of B-mode US and SWE for predicting malignant thyroid nodules was analyzed. The optimal cutoff values of elasticity parameters for identifying malignancy were determined. Diagnostic performance was compared between B-mode US only, SWE only, and the combination of B-mode US with SWE. Results On multivariate logistic regression analysis, age (odds ratio [OR], 0.90; P=0.028), a taller-than-wide shape (OR, 11.3; P=0.040), the presence of calcifications (OR, 15.0; P=0.021), and Emax (OR, 1.22; P=0.021) were independent predictors of malignancy in thyroid nodules. The combined use of B-mode US findings and SWE yielded improvements in sensitivity, the positive predictive value, the negative predictive value, and accuracy compared with the use of B-mode US findings only, but with no statistical significance. Conclusion When SWE was combined with B-mode US, the diagnostic performance was better than when only B-mode US was used, although the difference was not statistically significant.
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Affiliation(s)
- Eung Koo Yeon
- Department of Radiology, Kyung Hee University Hospital, Kyung Hee University College of Medicine, Seoul, Korea
| | - Yu-Mee Sohn
- Department of Radiology, Kyung Hee University Hospital, Kyung Hee University College of Medicine, Seoul, Korea
| | - Mirinae Seo
- Department of Radiology, Kyung Hee University Hospital, Kyung Hee University College of Medicine, Seoul, Korea
| | - Eui-Jong Kim
- Department of Radiology, Kyung Hee University Hospital, Kyung Hee University College of Medicine, Seoul, Korea
| | - Young-Gyu Eun
- Department of Otolaryngology-Head and Neck Surgery, Kyung Hee University Hospital, Kyung Hee University College of Medicine, Seoul, Korea
| | - Won Seo Park
- Department of Surgery, Kyung Hee University Hospital, Kyung Hee University College of Medicine, Seoul, Korea
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13
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Chae S, Min SY, Park WS. Comparison Study of Robotic Thyroidectomies Through a Bilateral Axillo-Breast Approach and a Transoral Approach. J Laparoendosc Adv Surg Tech A 2020; 30:175-182. [DOI: 10.1089/lap.2019.0585] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Sumin Chae
- Department of Surgery, Kyung Hee University School of Medicine, Kyung Hee University Medical Center, Seoul, Republic of Korea
| | - Sun Young Min
- Department of Surgery, Kyung Hee University School of Medicine, Kyung Hee University Medical Center, Seoul, Republic of Korea
| | - Won Seo Park
- Department of Surgery, Kyung Hee University School of Medicine, Kyung Hee University Medical Center, Seoul, Republic of Korea
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14
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Kim YG, Park YH, Yang EY, Park WS, Park KS. Inhibition of tamoxifen's therapeutic effects by emodin in estrogen receptor-positive breast cancer cell lines. Ann Surg Treat Res 2019; 97:230-238. [PMID: 31742207 PMCID: PMC6848006 DOI: 10.4174/astr.2019.97.5.230] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 10/08/2019] [Accepted: 10/13/2019] [Indexed: 01/22/2023] Open
Abstract
Purpose This study was aimed to investigate the combination effect of endoxifen and emodin on estrogen receptor (ER) positive breast cancer cell lines and to explain the mechanism of the combination effect. Methods We conducted this study on MCF-7 (ER+/human epidermal growth factor receptor-2 [HER2]−), T47D (ER+/HER2−), ZR-75-1 (ER+/HER2+), and BT474 (ER+/HER2+) cell lines, which confirmed combination effect of endoxifen and emodin. Optimal concentrations for combination were determined to study the effects on proliferation of MCF-7 and ZR-75-1 cells. Analysis of the combination effect was carried out in the CompuSyn software. The combination of downstream mechanisms, and combined effects of other similar compounds were tested on the MCF-7 and ZR 75-1 cell lines. Protein expression was confirmed by western blot. Results The combination of endoxifen and emodin had antagonistic effects on MCF-7 and ZR-75-1cell lines (combination index > 1). We validated the antagonistic effect in T47D and BT474 cell lines. During the combined treatment, the results showed elevated amounts of cyclin D1 and phosphorylated extracellular signal-regulated kinase (pERK). Analysis of drug interactions showed antagonistic effect between endoxifen and chemical compounds similar to emodin, such as chrysophanol or rhein, in MCF-7 and ZR-75-1 cells. Conclusion Addition of emodin attenuated tamoxifen's treatment effect via cyclin D1 and pERK up-regulation in ER-positive breast cancer cell lines.
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Affiliation(s)
- Yun Gyoung Kim
- Department of Surgery, Bundang Jesang General Hospital, Seongnam, Korea.,Clinical Science, Department of Medicine, The Graduate School of Konkuk University, Seoul, Korea
| | - Yoon Hwa Park
- Division of Radiation Cancer Research, Korea Institute of Radiological and Medical Sciences, Seoul, Korea
| | - Eun Yoel Yang
- Ewha Womans University Mokdong Hospital/Cancer Center for Women, Breast and Thyroid Cancer Center, Seoul, Korea
| | - Won Seo Park
- Department of Surgery, Kyung Hee University School of Medicine, Seoul, Korea
| | - Kyoung Sik Park
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea.,Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
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15
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Park MY, Nam SE, Park KS, Saindane M, Yoo YB, Yang JH, Ahn AL, Choi JK, Park WS. Postthyroidectomy obesity in a Korean population: does the extent of surgery matter? Ann Surg Treat Res 2019; 97:119-123. [PMID: 31508391 PMCID: PMC6722288 DOI: 10.4174/astr.2019.97.3.119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 07/15/2019] [Accepted: 07/19/2019] [Indexed: 12/25/2022] Open
Abstract
Purpose The purpose of this study was to investigate the prevalence of postthyroidectomy obesity, and the relationship between the extent of thyroidectomy and obesity. Methods A survey conducted at an outpatient clinic from June to October 2014 and retrospective charts for patients undergoing thyroidectomy at Konkuk University Medical Centers from June 2009 to December 2013 were reviewed. We compared clinical characteristics and pre- and postoperative obesity-related factors in 227 patients who underwent total thyroidectomy or lobectomy. Results Patients included 39 males and 188 females with a mean age of 46.0 ± 11.0 years; the mean follow-up period was 23.9 ± 16.7 months, and 90 of the 227 patients showed postthyroidectomy obesity. In effect of operative extent on postoperative obesity, patients who underwent TT (48.2 years) than those who underwent lobectomy (43.4 years). TT group had longer follow-up and the frequency of menopause was higher than in the lobectomy group. No differences in postthyroidectomy obesity, body weight change, or body mass index (BMI), change among 2 groups. The predictors of postthyroidectomy obesity were older age, female, heavy alcohol consumption (P = 0.029), higher preoperative BMI (P < 0.001), larger postoperative weight gain (P = 0.024), and larger BMI change. However, the extent of thyroidectomy did not affect postthyroidectomy obesity. Preoperative BMI (P < 0.001) and heavy alcohol consumption (P = 0.03) were independent factors of postthyroidectomy obesity. Conclusion The extent of thyroidectomy does not affect postthyroidectomy obesity. Preoperative BMI and heavy alcohol consumption are risk factors for postthyroidectomy obesity. Studies are needed to suggest preoperative life style modification to prevent postthyroidectomy obesity.
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Affiliation(s)
- Min-Young Park
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
| | - Sang Eun Nam
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
| | - Kyoung Sik Park
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea.,Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
| | - Madhuri Saindane
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
| | - Young-Bum Yoo
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
| | - Jung-Hyun Yang
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
| | - Ah-Leum Ahn
- Department of Family Medicine, Konkuk University School of Medicine, Seoul, Korea
| | - Jae-Kyung Choi
- Department of Family Medicine, Konkuk University School of Medicine, Seoul, Korea
| | - Won Seo Park
- Department of Surgery, Kyung Hee University School of Medicine, Seoul, Korea
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16
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Park WS, Park MS, Kang SW, Jin SA, Jeon Y, Hwang J, Kim SK. Hesperidin Shows Protective Effects on Renal Function in Ischemia-induced Acute Kidney Injury (Sprague-Dawley Rats). Transplant Proc 2019; 51:2838-2841. [PMID: 31493919 DOI: 10.1016/j.transproceed.2019.02.055] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 02/06/2019] [Indexed: 10/26/2022]
Abstract
OBJECTIVE Hesperidin is a well-known flavanone glycoside copiously found in sweet orange and lemon, which was recently reported to possess significant anti-inflammatory, analgesic, antifungal, antiviral, antioxidant, and anticancer activities. Ischemia-reperfusion (I/R) injury is a major problem after renal transplantation. Furthermore, inflammatory responses to I/R exacerbate the resultant renal injury. In the present study, we investigated whether hesperidin exhibits renoprotective effects against I/R-induced acute kidney injury in a rat model. METHODS We fed Sprague-Dawley rats either hesperidin (100 mg/kg/d) or saline. One week later, ischemia was induced by bilateral renal pedicle occlusion for 30 minutes followed by reperfusion. The rats were randomly divided into 3 groups, which were treated as follows: 1. the sham operated group; 2. the I/R group; 3. the I/R-hesperidin group RESULTS: Compared to the sham group, the I/R group had higher expression of blood urea nitrogen and serum creatinine and lower expression of catalase, superoxide dismutase, glutathione peroxidase, antioxidants, and nitric oxide. Compared to the I/R group, the I/R-hesperidin group had higher expression of catalase, superoxide dismutase, glutathione peroxidase, antioxidant, and nitric oxide and lower expression of blood urea nitrogen and serum creatinine. CONCLUSIONS Hesperidin improved acute renal I/R injury through its antioxidant effects. These findings suggest that hesperidin is a potential therapeutic agent for acute ischemia-induced renal damage.
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Affiliation(s)
- Won Seo Park
- Department of Surgery, School of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Min Su Park
- Department of Surgery, School of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Sang Wook Kang
- Department of Dental Pharmacology, College of Dentistry, Dankook University, Cheonan, Republic of Korea
| | - Seul A Jin
- Department of Dental Pharmacology, College of Dentistry, Dankook University, Cheonan, Republic of Korea
| | - Youngchul Jeon
- Department of Biomedical Engineering, Graduate School, Kyung Hee University, Seoul, Republic of Korea
| | - Jeikiun Hwang
- Department of Medicine, Graduate School, Kyung Hee University, Seoul, Republic of Korea
| | - Su Kang Kim
- Department of Biomedical Laboratory Science, Catholic Kwandong University, Gangneung, Republic of Korea.
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17
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Song M, Kim H, Kwak W, Park WS, Yoo J, Kang HB, Kim JH, Kang SM, Ba HV, Kim BM, Oh MH, Kim H, Jun-Sang H. Expression and Purification of Extracellular Solute-Binding Protein (ESBP) in Escherichia coli, the Extracellular Protein Derived from Bifidobacterium longum KACC 91563. Food Sci Anim Resour 2019; 39:601-609. [PMID: 31508590 PMCID: PMC6728822 DOI: 10.5851/kosfa.2019.e50] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 06/24/2019] [Accepted: 07/04/2019] [Indexed: 11/06/2022] Open
Abstract
Bifidobacterium longum KACC 91563 secretes family 5 extracellular solute-binding protein via extracellular vesicle. In our previous work, it was demonstrated that the protein effectively alleviated food allergy symptoms via mast cell specific apoptosis, and it has revealed a therapeutic potential of this protein in allergy treatment. In the present study, we cloned the gene encoding extracellular solute-binding protein of the strain into the histidine-tagged pET-28a(+) vector and transformed the resulting plasmid into the Escherichia coli strain BL21 (DE3). The histidine-tagged extracellular solute-binding protein expressed in the transformed cells was purified using Ni-NTA affinity column. To enhance the efficiency of the protein purification, three parameters were optimized; the host bacterial strain, the culturing and induction temperature, and the purification protocol. After the process, two liters of transformed culture produced 7.15 mg of the recombinant proteins. This is the first study describing the production of extracellular solute-binding protein of probiotic bacteria. Establishment of large-scale production strategy for the protein will further contribute to the development of functional foods and potential alternative treatments for allergies.
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Affiliation(s)
- Minyu Song
- Animal Products Development and Processing
Division, National Institute of Animal Science,
Wanju 55365, Korea
| | - Hyaekang Kim
- Department of Agricultural Biotechnology
and Research Institute of Agriculture and Life Sciences, Seoul National
University, Seoul 08826, Korea
| | - Woori Kwak
- C & K Genomics, H Businesss
Park, Seoul 05836, Korea
| | - Won Seo Park
- Animal Products Development and Processing
Division, National Institute of Animal Science,
Wanju 55365, Korea
| | - Jayeon Yoo
- Animal Products Development and Processing
Division, National Institute of Animal Science,
Wanju 55365, Korea
| | - Han Byul Kang
- Animal Products Development and Processing
Division, National Institute of Animal Science,
Wanju 55365, Korea
| | - Jin-Hyoung Kim
- Animal Products Development and Processing
Division, National Institute of Animal Science,
Wanju 55365, Korea
| | - Sun-Moon Kang
- Animal Products Development and Processing
Division, National Institute of Animal Science,
Wanju 55365, Korea
| | - Hoa Van Ba
- Animal Products Development and Processing
Division, National Institute of Animal Science,
Wanju 55365, Korea
| | - Bu-Min Kim
- Animal Products Development and Processing
Division, National Institute of Animal Science,
Wanju 55365, Korea
| | - Mi-Hwa Oh
- Animal Products Development and Processing
Division, National Institute of Animal Science,
Wanju 55365, Korea
| | - Heebal Kim
- Department of Agricultural Biotechnology
and Research Institute of Agriculture and Life Sciences, Seoul National
University, Seoul 08826, Korea
| | - Ham Jun-Sang
- Animal Products Development and Processing
Division, National Institute of Animal Science,
Wanju 55365, Korea
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18
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Kim E, Jung S, Park WS, Lee JH, Shin R, Heo SC, Choe EK, Lee JH, Kim K, Chai YJ. Upregulation of SLC2A3 gene and prognosis in colorectal carcinoma: analysis of TCGA data. BMC Cancer 2019; 19:302. [PMID: 30943948 PMCID: PMC6446261 DOI: 10.1186/s12885-019-5475-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Accepted: 03/14/2019] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Upregulation of SLC2A genes that encode glucose transporter (GLUT) protein is associated with poor prognosis in many cancers. In colorectal cancer, studies reporting the association between overexpression of GLUT and poor clinical outcomes were flawed by small sample sizes or subjective interpretation of immunohistochemical staining. Here, we analyzed mRNA expressions in all 14 SLC2A genes and evaluated the association with prognosis in colorectal cancer using data from the Cancer Genome Atlas (TCGA) database. METHODS In the present study, we analyzed the expression of SLC2A genes in colorectal cancer and their association with prognosis using data obtained from the TCGA for the discovery sample, and a dataset from the Gene Expression Omnibus for the validation sample. RESULTS SLC2A3 was significantly associated with overall survival (OS) and disease-free survival (DFS) in both the discovery sample (345 patients) and validation sample (501 patients). High SLC2A3 expression resulted in shorter OS and DFS. In multivariate analyses, high SLC2A3 levels predicted unfavorable OS (adjusted HR 1.95, 95% CI 1.22-3.11; P = 0.005) and were associated with poor DFS (adjusted HR 1.85, 95% CI 1.10-3.12; P = 0.02). Similar results were found in the discovery set. CONCLUSION Upregulation of the SLC2A3 genes is associated with decreased OS and DFS in colorectal cancer patients. Therefore, assessment of SLC2A3 gene expression may useful for predicting prognosis in these patients.
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Affiliation(s)
- Eunyoung Kim
- Department of Surgery, National Medical Center, Seoul, Republic of Korea
| | - Sohee Jung
- Division of Clinical Bioinformatics, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Won Seo Park
- Department of Surgery, Graduate College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Joon-Hyop Lee
- Department of Surgery, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Rumi Shin
- Department of Surgery, Seoul Metropolitan Government - Seoul National University Boramae Medical Center, 20 Boramae-ro 5-gil, Dongjak-gu, Seoul, 156-70, Republic of Korea
| | - Seung Chul Heo
- Department of Surgery, Seoul Metropolitan Government - Seoul National University Boramae Medical Center, 20 Boramae-ro 5-gil, Dongjak-gu, Seoul, 156-70, Republic of Korea
| | - Eun Kyung Choe
- Department of Surgery, Seoul National University Hospital Healthcare System, Gangnam Center, Seoul, Republic of Korea
| | - Jae Hyun Lee
- Department of Statistics, Korea University, Seoul, Republic of Korea
| | - Kwangsoo Kim
- Division of Clinical Bioinformatics, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea.
| | - Young Jun Chai
- Department of Surgery, Seoul Metropolitan Government - Seoul National University Boramae Medical Center, 20 Boramae-ro 5-gil, Dongjak-gu, Seoul, 156-70, Republic of Korea.
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19
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Lee JH, Jung S, Park WS, Choe EK, Kim E, Shin R, Heo SC, Lee JH, Kim K, Chai YJ. Prognostic nomogram of hypoxia-related genes predicting overall survival of colorectal cancer-Analysis of TCGA database. Sci Rep 2019; 9:1803. [PMID: 30755640 PMCID: PMC6372658 DOI: 10.1038/s41598-018-38116-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 12/13/2018] [Indexed: 12/20/2022] Open
Abstract
Hypoxia-related gene (HRG) expression is associated with survival outcomes of colorectal cancer (CRC). Our aim was developing a nomogram predicting CRC overall survival (OS) with HRGs and clinicopathological factors. The Cancer Genome Atlas (TCGA) database was used as discovery cohort and two Gene Expression Omnibus databases (GSE39582 and GSE41258) served as validation cohorts. A genetic risk score model prognosticating OS was developed using mRNA expression level of HRGs. Nomogram predicting OS was developed using genetic risk score model and clinicopathological variables. The genetic risk score model included four HRGs (HSPA1L, PUM1, UBE2D2, and HSP27) and successfully prognosticated OS of discovery and two validation cohorts (p < 0.001 for TCGA discovery set, p < 0.003 for the GSE39582 and p = 0.042 for the GSE41258 datasets). Nomogram included genetic risk score, age, and TNM stage. Harrell’s concordance indexes of the nomogram were higher than those of TNM stage alone in the discovery set (0.77 vs. 0.69, p < 0.001), GSE39582 (0.65 vs. 0.63, p < 0.001), and GSE41258 datasets (0.78 vs. 0.77, p < 0.001). Our nomogram successfully predicted OS of CRC patients. The mRNA expression level of the HRGs might be useful as an ancillary marker for prognosticating CRC outcome.
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Affiliation(s)
- Joon-Hyop Lee
- Department of Surgery, Gachon University College of Medicine, Gil Medical Center, Incheon, Republic of Korea
| | - Sohee Jung
- Division of Clinical Bioinformatics, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Won Seo Park
- Department of Surgery, Kyung Hee University Hospital, Seoul, Republic of Korea
| | - Eun Kyung Choe
- Department of Surgery, Seoul National University Hospital Healthcare System, Gangnam Center, Seoul, Republic of Korea
| | - Eunyoung Kim
- Department of Surgery, National Medical Center, Seoul, Republic of Korea
| | - Rumi Shin
- Department of Surgery, Seoul Metropolitan Government, Seoul National University Boramae Medical Center, Seoul, Republic of Korea
| | - Seung Chul Heo
- Department of Surgery, Seoul Metropolitan Government, Seoul National University Boramae Medical Center, Seoul, Republic of Korea
| | - Jae Hyun Lee
- Department of Statistics, Korea University, Seoul, Republic of Korea
| | - Kwangsoo Kim
- Division of Clinical Bioinformatics, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea.
| | - Young Jun Chai
- Department of Surgery, Seoul Metropolitan Government, Seoul National University Boramae Medical Center, Seoul, Republic of Korea.
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Lee JH, Ahn J, Park WS, Choe EK, Kim E, Shin R, Heo SC, Jung S, Kim K, Chai YJ, Chae H. Colorectal Cancer Prognosis is Not Associated with BRAF and KRAS Mutations-A STROBE Compliant Study. J Clin Med 2019; 8:jcm8010111. [PMID: 30658510 PMCID: PMC6351956 DOI: 10.3390/jcm8010111] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 01/04/2019] [Accepted: 01/14/2019] [Indexed: 01/11/2023] Open
Abstract
Background: We investigated the associations between v-Raf murine sarcoma viral oncogene homolog B1 (BRAFV600E, henceforth BRAF) and v-Ki-ras2 Kirsten rat sarcoma viral oncogene homolog (KRAS) mutations and colorectal cancer (CRC) prognosis, using The Cancer Genome Atlas (TCGA) and the Gene Expression Omnibus (GSE39582) datasets. Materials and Methods: The effects of BRAF and KRAS mutations on overall survival (OS) and disease-free survival (DFS) of CRC were evaluated. Results: The mutational status of BRAF and KRAS genes was not associated with overall survival (OS) or DFS of the CRC patients drawn from the TCGA database. The 3-year OS and DFS rates of the BRAF mutation (+) vs. mutation (−) groups were 92.6% vs. 90.4% and 79.7% vs. 68.4%, respectively. The 3-year OS and DFS rates of the KRAS mutation (+) vs. mutation (−) groups were 90.4% vs. 90.5% and 65.3% vs. 73.5%, respectively. In stage II patients, however, the 3-year OS rate was lower in the BRAF mutation (+) group than in the mutation (−) group (85.5% vs. 97.7%, p < 0.001). The mutational status of BRAF genes of 497 CRC patients drawn from the GSE39582 database was not associated with OS or DFS. The 3-year OS and DFS rates of BRAF mutation (+) vs. mutation (−) groups were 75.7% vs. 78.9% and 73.6% vs. 71.1%, respectively. However, KRAS mutational status had an effect on 3-year OS rate (71.9% mutation (+) vs. 83% mutation (−), p = 0.05) and DFS rate (66.3% mutation (+) vs. 74.6% mutation (−), p = 0.013). Conclusions: We found no consistent association between the mutational status of BRAF nor KRAS and the OS and DFS of CRC patients from the TCGA and GSE39582 databases. Studies with longer-term records and larger patient numbers may be necessary to expound the influence of BRAF and KRAS mutations on the outcomes of CRC.
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Affiliation(s)
- Joon-Hyop Lee
- Department of Surgery, Gachon University College of Medicine, Gil Medical Center, Incheon 21565, Korea.
| | - Jiyoung Ahn
- Division of Computer Science, Sookmyung Women's University, Seoul 04310, Korea.
| | - Won Seo Park
- Department of Surgery, Kyung Hee University Hospital, Seoul 02447, Korea.
| | - Eun Kyung Choe
- Department of Surgery, Seoul National University Hospital Healthcare System, Gangnam Center, Seoul, Korea.
| | - Eunyoung Kim
- Department of Surgery, National Medical Center, Seoul 04564, Korea.
| | - Rumi Shin
- Department of Surgery, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul 07061, Korea.
| | - Seung Chul Heo
- Department of Surgery, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul 07061, Korea.
| | - Sohee Jung
- Division of Clinical Bioinformatics, Biomedical Research Institute, Seoul National University Hospital, Seoul 03080, Korea.
| | - Kwangsoo Kim
- Division of Clinical Bioinformatics, Biomedical Research Institute, Seoul National University Hospital, Seoul 03080, Korea.
| | - Young Jun Chai
- Department of Surgery, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul 07061, Korea.
| | - Heejoon Chae
- Division of Computer Science, Sookmyung Women's University, Seoul 04310, Korea.
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Song M, Park WS, Yoo J, Han GS, Kim BM, Seong PN, Oh MH, Kim KW, Ham JS. Characteristics of Kwark Cheese Supplemented with Bifidobacterium longum KACC 91563. Korean J Food Sci Anim Resour 2017; 37:773-779. [PMID: 29147101 PMCID: PMC5686336 DOI: 10.5851/kosfa.2017.37.5.773] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 09/21/2017] [Accepted: 10/08/2017] [Indexed: 11/06/2022] Open
Abstract
The effect of addition of the probiotic Bifidobacterium longum KACC 91563 on the chemical and sensory properties of Kwark cheese produced using CHN-11 as a cheese starter were investigated. The addition of B. longum KACC 91563 to Kwark cheese did not change the composition or pH value of the cheese, compared with control. B. longum KACC 91563 survived at a level of 7.58 Log CFU/g and did not have any negative effect on survival of the cheese starter. A sensory panel commented that the addition of B. longum KACC 91563 made Kwark cheese more desirable to consumers, and that the probiotic supplementation had no effect on perceived taste. Thus, B. longum KACC 91563 can be used for inclusion of probiotic bacteria in cheese.
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Affiliation(s)
- Minyu Song
- Animal Products Research and Development Division, National Institute of Animal Science, RDA, Wanju 55365, Korea
| | - Won Seo Park
- Animal Products Research and Development Division, National Institute of Animal Science, RDA, Wanju 55365, Korea
| | - Jayeon Yoo
- Animal Products Research and Development Division, National Institute of Animal Science, RDA, Wanju 55365, Korea
| | - Gi-Sung Han
- Animal Products Research and Development Division, National Institute of Animal Science, RDA, Wanju 55365, Korea
| | - Bu-Min Kim
- Animal Products Research and Development Division, National Institute of Animal Science, RDA, Wanju 55365, Korea
| | - Pil-Nam Seong
- Animal Products Research and Development Division, National Institute of Animal Science, RDA, Wanju 55365, Korea
| | - Mi-Hwa Oh
- Animal Products Research and Development Division, National Institute of Animal Science, RDA, Wanju 55365, Korea
| | - Kyung-Woon Kim
- Animal Biotechnology Division, National Institute of Animal Science, RDA, Wanju 55365, Korea
| | - Jun-Sang Ham
- Animal Products Research and Development Division, National Institute of Animal Science, RDA, Wanju 55365, Korea
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Abstract
BACKGROUND The purpose of this study is to evaluate the efficacy and safety of electroacupuncture (EA) for postoperative pain after laparoscopic appendectomy compared with sham electroacupuncture (SEA) and no acupuncture treatment. METHODS AND ANALYSIS This study is a protocol for a three-arm, randomised, patient-assessor-blinded (to the type of acupuncture treatment), controlled, parallel trial. 138 participants diagnosed with appendicitis and scheduled for laparoscopic appendectomy will be randomly assigned to the EA group (n=46), SEA group (n=46) or control group (n=46). The EA group will receive acupuncture treatment at both regional and distal acupuncture points with electrostimulation. The SEA group will receive sham acupuncture treatment with mock electrostimulation. Both EA and SEA groups will receive a total of four treatments 1 hour preoperative, 1 hour postoperative and during the morning and afternoon the day after surgery with the same routine postoperative pain control. The control group will receive only routine postoperative pain control. The primary outcome is the 11-point Pain Intensity Numerical Rating Scale (PI-NRS) at 24 hours after surgery. The secondary outcomes are the PI-NRS, analgesic consumption, opioid-related side effects, time to first passing flatus, quality of life and adverse events evaluated 6, 12, 24 and 36 hours and 7 days after surgery. ETHICS AND DISSEMINATION The study was planned in accordance with the Helsinki Declaration and the Korean Good Clinical Practice Guidelines to protect the participants and was approved by the institutional review board (IRB) of Kyung Hee University Medical Center (KMC IRB-1427-02). The results will be disseminated in peer-reviewed journals and presented at international conferences. TRIAL REGISTRATION NUMBER Clinical Research Information Service (KCT0001328).
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Affiliation(s)
- Seunghoon Lee
- Department of Acupuncture and Moxibustion Medicine, Kyung Hee University Korean Medicine Hospital, Seoul, South Korea
| | - Dongwoo Nam
- Department of Acupuncture and Moxibustion Medicine, Kyung Hee University Korean Medicine Hospital, Seoul, South Korea
- Department of Acupuncture and Moxibustion, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Minsoo Kwon
- Department of Acupuncture and Moxibustion Medicine, Kyung Hee University Korean Medicine Hospital, Seoul, South Korea
| | - Won Seo Park
- Department of Surgery, Kyung Hee University Hospital, Seoul, South Korea
- Department of Surgery, Kyung Hee University School of Medicine, Seoul, South Korea
| | - Sun Jin Park
- Department of Surgery, Kyung Hee University Hospital, Seoul, South Korea
- Department of Surgery, Kyung Hee University School of Medicine, Seoul, South Korea
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Ko HM, Joo SH, Jo JH, Park WS, Jung WY, Shin JH, Ahn HJ. Liver-Wrapping, Nitric Oxide-Releasing Nanofiber Downregulates Cleaved Caspase-3 and Bax Expression on Rat Hepatic Ischemia-Reperfusion Injury. Transplant Proc 2017; 49:1170-1174. [PMID: 28583550 DOI: 10.1016/j.transproceed.2017.03.054] [Citation(s) in RCA: 9] [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] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Hepatic ischemia-reperfusion injury (IRI) is an important determinant of the outcome of hepatic surgery, including re-section and transplantation. Previous studies have shown that nitric oxide (NO) has a protective effect against IRI. Therefore, many studies have examined methods for supplying NO. In this study, we investigated the effect of NO-releasing nanofibers on hepatic IRI in a rat model. METHODS Male Sprague-Dawley rats were divided into 4 groups: control, IRI only (n = 3); group 1, hepatic IRI and liver-wrapping with nanofiber lacking NO (n = 4); group 2, hepatic IRI and liver-wrapping with NO rapid-releasing nanofiber (n = 4); and group 3, hepatic IRI and liver-wrapping with NO slow-releasing nanofiber (n = 5). RESULTS The levels of aspartate aminotransferase and alanine aminotransferase were not significantly different between groups. On the basis of Western blots, Bax/β-actin levels were significantly lower in group 2 than in group 3 (P < .01). Cleaved Caspase-3/β-actin levels were significantly lower in group 2 than in the control, group 1, and group 3 (P < .05, .01, and .01, respectively). However, there were no significant differences in Bcl-2/β-actin between groups. CONCLUSIONS The liver-wrapping NO rapid-releasing nanofiber downregulated cleaved Caspase-3 and Bax expression. It has a protective effect by reducing apoptosis in hepatic IRI in rats.
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Affiliation(s)
- H M Ko
- Department of Surgery, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - S H Joo
- Department of Surgery, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - J H Jo
- Department of Surgery, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - W S Park
- Department of Surgery, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - W Y Jung
- Department of Chemistry, College of Natural Science, Kwangwoon University, Seoul, Republic of Korea
| | - J H Shin
- Department of Chemistry, College of Natural Science, Kwangwoon University, Seoul, Republic of Korea
| | - H J Ahn
- Department of Surgery, College of Medicine, Kyung Hee University, Seoul, Republic of Korea.
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Cho JN, Park WS, Min SY. Predictors and risk factors of hypoparathyroidism after total thyroidectomy. Int J Surg 2016; 34:47-52. [PMID: 27554178 DOI: 10.1016/j.ijsu.2016.08.019] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 08/08/2016] [Accepted: 08/11/2016] [Indexed: 11/25/2022]
Abstract
BACKGROUND The aim of this study was to evaluate the risk factors for hypoparathyroidism after total thyroidectomy and to determine whether early postoperative serum levels of calcium and phosphorus could be used to predict its development. MATERIALS AND METHODS The study group consisted of 1030 patients who had undergone total thyroidectomy at our institution between March 2008 and July 2014. The clinicopathologic characteristics, indications for the operation, and surgical details of normocalcemic and hypocalcemic patients were compared, and variations in serum calcium and phosphorus levels were measured every day after the operation. RESULTS Of the 1030 patients, 291 (28.2%) were found to have transient hypocalcemia and 27 (2.6%) had permanent hypocalcemia. On univariate analysis, younger age (P = 0.001), female gender (P < 0.001), longer operative time (P = 0.009), extent of central neck dissection (CND) (P = 0.003), and malignancy (P = 0.005) were found to be significantly associated with transient hypocalcemia. On multivariate analysis, female gender (P = 0.001), extent of CND (P = 0.017), and the identification of parathyroid gland (PTG) tissue in permanent pathologic sections were significant factors. In addition, the occurrence of postoperative hypocalcemia was correlated with relative changes in serum calcium and phosphorus levels. Patients whose serum calcium levels decreased over 20% on postoperative day 2 were more likely to develop hypoparathyroidism, with 92% specificity. CONCLUSION Female gender (P = 0.001), extent of CND (P = 0.014), and PTG in permanent pathologic sections (P = 0.035) were found to be significant factors affecting the development of hypocalcemia. Despite some study limitations, we suggest that the relative changes in the serum levels of calcium (20%) and of phosphorus (40%) on the second postoperative day may be reliable predictors of post-thyroidectomy hypoparathyroidism.
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Affiliation(s)
- Jeong Nam Cho
- Department of Surgery, Kyung Hee University School of Medicine, Seoul, South Korea.
| | - Won Seo Park
- Department of Surgery, Kyung Hee University School of Medicine, Seoul, South Korea.
| | - Sun Young Min
- Department of Surgery, Kyung Hee University School of Medicine, Seoul, South Korea.
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Cho JN, Park WS, Min SY, Han SA, Song JY. Surgical outcomes of robotic thyroidectomy vs. conventional open thyroidectomy for papillary thyroid carcinoma. World J Surg Oncol 2016; 14:181. [PMID: 27393007 PMCID: PMC4939043 DOI: 10.1186/s12957-016-0929-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [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: 03/31/2016] [Accepted: 06/23/2016] [Indexed: 12/13/2022] Open
Abstract
Background The purpose of this study was to compare the surgical outcomes of robotic thyroidectomy (RT) using bilateral axillo-breast approach (BABA) with conventional open thyroidectomy (OT) in papillary thyroid carcinoma patients. Methods Between January 2009 and December 2013, 815 patients who had received thyroidectomy for papillary thyroid carcinoma were enrolled. Of these, 126 patients received RT and 689 patients underwent OT. Age, gender, body mass index, extent of surgery, tumor size, multiplicity, bilaterality, extrathyroidal extension, and tumor stage were used for the propensity score matching analysis. One hundred and nine patients were selected in each group, and surgical outcomes were compared between the two groups. Results The RT group showed a significantly longer operating time (290.6 ± 74.4 vs. 107.9 ± 30.8 min, P < 0.001). However, the mean hospital stay after surgery (3.6 ± 0.8 vs. 3.4 ± 1.2 days, P = 0.293), postoperative complication rates (major and minor, P = 0.754 and P = 0.852), and pain score (postoperative day, P = 0.669; postoperative day 1, P = 0.952) were comparable between the two groups. There was no difference in the number of metastatic lymph nodes, but the mean number of retrieved lymph nodes in the RT group was lesser than that in the OT group (3.5 ± 3.5 vs. 5.3 ± 5.2, P = 0.002). Conclusions Robotic thyroidectomy via the BABA may be a safe and acceptable surgical technique. But, further development that resolves the limitation of central node dissection is needed.
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Affiliation(s)
- Jeong Nam Cho
- Department of Medicine, Graduate School, Kyung Hee University, Seoul, Republic of Korea.,Kyung Hee University Hospital, 23 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea
| | - Won Seo Park
- Department of Surgery, Kyung Hee University Medical Center, Kyung Hee University School of Medicine, Seoul, South Korea. .,Department of Thyroid-Endocrine Surgery, Kyung Hee University Hospital, 23 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea.
| | - Sun Young Min
- Department of Surgery, Kyung Hee University Medical Center, Kyung Hee University School of Medicine, Seoul, South Korea.,Kyung Hee University Hospital, 23 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea
| | - Sang-Ah Han
- Department of Surgery, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine, Seoul, South Korea.,Kyung Hee University Hospital at Gangdong, 892 Dongnam-ro, Gangdong-gu, Seoul, South Korea
| | - Jeong-Yoon Song
- Department of Surgery, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine, Seoul, South Korea.,Kyung Hee University Hospital at Gangdong, 892 Dongnam-ro, Gangdong-gu, Seoul, South Korea
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Kim HS, Sung JY, Park WS, Kim YW. An ileal duplication cyst manifested as an ileocolic intussusception in an adult. Turk J Gastroenterol 2015; 25 Suppl 1:196-8. [PMID: 25910304 DOI: 10.5152/tjg.2014.4011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An enteric duplication cyst presenting as enterocolic intussusception is an exceptional clinical entity. We herein report a rare case of an ileal duplication cyst that manifested as an ileocolic intussusception. A 19-year-old woman was hospitalized due to right upper quadrant pain. Colonoscopy revealed a polypoid mass protruding into the colonic lumen. Ultrasonography demonstrated intussusception with a teardrop-shaped cystic mass at the tip. Computed tomography also showed ileocolic intussusception with a 2.5 cm-sized round cystic mass at the tip of intussusceptum. Microscopically, the cystic wall consisted of a well-defined smooth muscle coat and heterotopic gastric mucosa, consistent with an enteric duplication cyst. This case highlights an ileal duplication cyst as an uncommon cause of adult ileocolic intussusception. To the best of our knowledge, this is the first case of enteric duplication cyst identified as a pathological lead point for enterocolic intussusception in an adult. Enteric duplication cysts should be included in the differential diagnosis of cystic-leading lesions for adult intussusceptions.
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Affiliation(s)
- Hyun-Soo Kim
- Aerospace Medical Research Center, Republic of Korea Air Force, Chungcheongbuk-do, Republic of Korea.
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Son GY, Yang YM, Park WS, Chang I, Shin DM. Hypotonic stress induces RANKL via transient receptor potential melastatin 3 (TRPM3) and vaniloid 4 (TRPV4) in human PDL cells. J Dent Res 2015; 94:473-81. [PMID: 25595364 DOI: 10.1177/0022034514567196] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [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: 11/16/2022] Open
Abstract
Bone remodeling occurs in response to various types of mechanical stress. The periodontal ligament (PDL) plays an important role in mechanical stress-mediated alveolar bone remodeling. However, the underlying mechanism at the cellular level has not been extensively studied. In this study, we investigated the effect of shear stress on the expression of bone remodeling factors, including receptor activator of nuclear factor-kappa B (NF-κB) ligand (RANKL) and osteoprotegerin (OPG), as well as its upstream signaling pathway in primary human PDL cells. We applied hypotonic stress to reproduce shear stress to PDL cells. Hypotonic stress induced the messenger RNA (mRNA) and protein expression of RANKL but not OPG. It also increased intracellular Ca(2+) concentration ([Ca(2+)]i). Extracellular Ca(2+) depletion and nonspecific plasma membrane Ca(2+) channel blockers completely inhibited the increase in both [Ca(2+)]i and RANKL mRNA expression. We identified the expression and activation of transient receptor potential melastatin 3 (TRPM3) and vaniloid 4 (TRPV4) channels in PDL cells. Pregnenolone sulfate (PS) and 4α-phorbol 12, 13-didecanoate (4α-PDD), which are agonists of TRPM3 and TRPV4, augmented Ca(2+) influx and RANKL mRNA expression. Both pharmacological (2-aminoethoxydiphenyl borate [2-APB], ruthenium red [RR], ononetin [Ono], and HC 067047 [HC]) and genetic (small interfering RNA [siRNA]) inhibitors of TRPM3 and TRPV4 reduced the hypotonic stress-mediated increase in [Ca(2+)]i and RANKL mRNA expression. Our study shows that hypotonic stress induced RANKL mRNA expression via TRPM3- and TRPV4-mediated extracellular Ca(2+) influx and RANKL expression. This signaling pathway in PDL cells may play a critical role in mechanical stress-mediated alveolar bone remodeling.
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Affiliation(s)
- G Y Son
- Department of Oral Biology, Yonsei University College of Dentistry, Seoul, Korea BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
| | - Y M Yang
- Department of Oral Biology, Yonsei University College of Dentistry, Seoul, Korea
| | - W S Park
- Department of Advanced General Dentistry, Yonsei University College of Dentistry, Seoul, Korea
| | - I Chang
- Department of Oral Biology, Yonsei University College of Dentistry, Seoul, Korea
| | - D M Shin
- Department of Oral Biology, Yonsei University College of Dentistry, Seoul, Korea BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
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Park SJ, Park WS, Min SY, Kwon SH, Park MS, Ahn HJ. Cystic adventitial disease of the common femoral artery at a previous surgical dissection site. Ann Vasc Surg 2014; 29:365.e1-3. [PMID: 25463335 DOI: 10.1016/j.avsg.2014.08.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 08/12/2014] [Accepted: 08/31/2014] [Indexed: 10/24/2022]
Abstract
Cystic adventitial disease (CAD) is a rare vascular disorder associated with nonatherosclerotic peripheral vessel disease and occurs when mucoid cysts in the adventitia compress the blood vessel. The underlying etiology and pathogenesis of CAD remain debatable as various theories have been suggested. This case is interesting because the cyst developed from the previous common femoral artery (CFA) dissection site. To our knowledge, this is the first report of CAD developed at a previous operation site. Thus, we report herein a case of CAD arising from a previous embolectomy dissection site in the CFA that was successfully treated with surgery.
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Affiliation(s)
- Sun Jin Park
- Department of Surgery, Kyung Hee University School of Medicine, Seoul, South Korea
| | - Won Seo Park
- Department of Surgery, Kyung Hee University School of Medicine, Seoul, South Korea
| | - Sun Young Min
- Department of Surgery, Kyung Hee University School of Medicine, Seoul, South Korea
| | - Se Hwan Kwon
- Department of Radiology, Kyung Hee University School of Medicine, Seoul, South Korea
| | - Min Soo Park
- Department of Surgery, Kyung Hee University School of Medicine, Seoul, South Korea
| | - Hyung Joon Ahn
- Department of Surgery, Kyung Hee University School of Medicine, Seoul, South Korea.
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Han SA, Park WS, Jang JH, Min SY, Ryu JK, Song JY. BRAF mutation may predict higher necessity of postoperative radioactive iodine ablation in papillary thyroid cancer. Ann Surg Treat Res 2014; 87:174-9. [PMID: 25317411 PMCID: PMC4196434 DOI: 10.4174/astr.2014.87.4.174] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Revised: 05/08/2014] [Accepted: 05/12/2014] [Indexed: 12/02/2022] Open
Abstract
Purpose The primary aim of the present study was to analyze the association between high-risk clinicopathologic characteristics and the BRAFV600E mutation. Methods From March 2010 to September 2012, we performed analysis of the BRAF mutation (assessing V600E point mutation of BRAF gene, exon 15, on chromosome 7q34 by real-time polymerase chain reaction kit) from 499 papillary thyroid carcinoma (PTC) patients who underwent thyroidectomy. We analyzed the relation between the mutation and known clinicopathologic risk factors of PTC. Results BRAF mutations were found in 353 of 499 patients (70.7%). On univariate analysis, BRAF mutations were more frequently detected in patients with central lymph node metastasis (78.5% vs. 66.7%, P = 0.007) and classic PTC type (71.3% vs. 16.7%, P = 0.011). Patients with one or more aggressive pathologic feature such as lymph node metastasis, multifocality, and extrathyroidal extension showed higher BRAF mutation rate (73.5% vs. 62.3%, P = 0.022). BRAF mutation group showed more aggressive pathologic features, which is considered as higher necessity of radioactive iodine ablation (relative risk, 1.617; P = 0.035). Conclusion This study found that BRAF mutation is associated with classic PTC and central lymph node metastasis and higher necessity of radioactive iodine ablation.
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Affiliation(s)
- Sang-Ah Han
- Department of Surgery, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine, Seoul, Korea
| | - Won Seo Park
- Department of Surgery, Kyung Hee University School of Medicine, Seoul, Korea
| | - Jae-Hoon Jang
- Department of Surgery, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine, Seoul, Korea
| | - Sun-Young Min
- Department of Surgery, Kyung Hee University School of Medicine, Seoul, Korea
| | - Jung Kyu Ryu
- Department of Radiology, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine, Seoul, Korea
| | - Jeong-Yoon Song
- Department of Surgery, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine, Seoul, Korea
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Park JY, Kim HS, Cho H, Kim NC, Chae KH, Park WS, Kim YW. Clinicopathologic correlation of autophagy-related Beclin-1 expression in gallbladder cancer. Hepatogastroenterology 2014; 61:1494-1500. [PMID: 25436332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
BACKGROUND/AIMS Autophagy plays critical roles in both cell survival and cell death. Beclin-1, a key modulator of autophagy function, is considered a haploinsufficient tumor suppressor. The role of Beclin-1 expression in cancer is still controversial. Some studies favor the idea that autophagy suppresses tumor development, whereas other researchers suggest that autophagy enhances tumorigenesis. The expression and function of Beclin-1 in gallbladder cancer (GBCA) remain largely unknown. METHODOLOGY Methodology: We performed immunohistochemical staining for Beclin-1 in 119 GBCA cases, and investigated whether Beclin-1 expression correlated with clinicopathologic characteristics and prognosis of patients. RESULTS Beclin-1 was expressed in the cytoplasm of cancer cells with occasional nuclear staining in 53 (44.5%) of the 119 cases of GBCA with no expression in adjacent normal epithelial cells. Increased expression of Beclin-1 was significantly associated with longer survival rate of patients with GBCA in univariate (p=0.006) and multivariate analyses (p=0.005). There is no association between Beclin-1 expression and clinicopathologic characteristics. CONCLUSIONS Beclin-1 was highly expressed in GBCA, and positive expression in cancer cells was significantly related with favorable prognosis in GBCA patients. Our results suggest that the expression of Beclin-1 may be an independent predictive marker of favorable prognosis in GBCA.
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Son JI, Rhee SY, Woo JT, Park WS, Byun JK, Kim YJ, Byun JM, Chin SO, Chon S, Oh S, Kim SW, Kim YS. Insufficient experience in thyroid fine-needle aspiration leads to misdiagnosis of thyroid cancer. Endocrinol Metab (Seoul) 2014; 29:293-9. [PMID: 25309787 PMCID: PMC4192815 DOI: 10.3803/enm.2014.29.3.293] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 02/07/2014] [Accepted: 02/11/2014] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Fine-needle aspiration (FNA) of the thyroid is a widely accepted confirmatory test for thyroid cancer with high sensitivity and specificity. FNA is a simple procedure that is learned by many clinicians to enable accurate diagnosis of thyroid cancer. However, it is assumed that because the FNA test is a relatively simple procedure, its cytologic results are reliable regardless of the operator's experience. The aim of this study was to evaluate the differences in the diagnostic indices of FNA between operators with different levels of experience. METHODS A total of 694 thyroid FNA specimens from 469 patients were reviewed, and were separated based on the experience of the clinicians who performed the procedure. One hundred and ninety were categorized in the experienced group, and 504 in the inexperienced group. All FNA results were then compared with histological data from surgically resected specimens, and the sample adequacy and diagnostic accuracy of the groups were compared. RESULTS The age, gender, and nodule size and characteristics were similar in both groups. The sample adequacy rate was not significantly different between the experienced and nonexperienced groups (96.3% vs. 95.4%, P=0.682). However, the non-experienced group had a higher false-negative rate than the experienced group (6.4% vs. 17.2%, P=0.038), and the sensitivity of the FNA test also tended to be lower in the nonexperienced group (95.6% vs. 88.9%, P=0.065). CONCLUSION These results suggest that FNA operators who have less experience may miss cases of thyroid cancer by performing the procedure incorrectly. As such, the experience of the FNA operator should be considered when diagnosing thyroid cancer. When clinicians are being trained in FNA, more effort should be made to increase the accuracy of the procedure; therefore, enhanced teaching programs and/or a more detailed feedback system are recommended.
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Affiliation(s)
- Jung Il Son
- Department of Endocrinology and Metabolism, Kyung Hee University School of Medicine, Seoul, Korea
| | - Sang Youl Rhee
- Department of Endocrinology and Metabolism, Kyung Hee University School of Medicine, Seoul, Korea
| | - Jeong-taek Woo
- Department of Endocrinology and Metabolism, Kyung Hee University School of Medicine, Seoul, Korea
| | - Won Seo Park
- Department of Surgery, Kyung Hee University School of Medicine, Seoul, Korea
| | - Jong Kyu Byun
- Department of Endocrinology and Metabolism, Kyung Hee University School of Medicine, Seoul, Korea
| | - Yu-Jin Kim
- Department of Endocrinology and Metabolism, Kyung Hee University School of Medicine, Seoul, Korea
| | - Ja Min Byun
- Department of Endocrinology and Metabolism, Kyung Hee University School of Medicine, Seoul, Korea
| | - Sang Ouk Chin
- Department of Endocrinology and Metabolism, Kyung Hee University School of Medicine, Seoul, Korea
| | - Suk Chon
- Department of Endocrinology and Metabolism, Kyung Hee University School of Medicine, Seoul, Korea
| | - Seungjoon Oh
- Department of Endocrinology and Metabolism, Kyung Hee University School of Medicine, Seoul, Korea
| | - Sung Woon Kim
- Department of Endocrinology and Metabolism, Kyung Hee University School of Medicine, Seoul, Korea
| | - Young Seol Kim
- Department of Endocrinology and Metabolism, Kyung Hee University School of Medicine, Seoul, Korea
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Park WS, Joh JH, Min SY, Ahn HJ. In Situ Polytetrafluorethylene Graft Bypass for Contained Rupture of Rapidly Progressing Aortic Pseudoaneurysm Due to Severe Infectious Aortitis. Ann Vasc Surg 2014; 28:1563.e7-9. [DOI: 10.1016/j.avsg.2014.03.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 12/05/2013] [Accepted: 03/24/2014] [Indexed: 11/26/2022]
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Lee KM, Kim EJ, Choi WS, Park WS, Kim SW. Intrathyroidal parathyroid carcinoma mimicking a thyroid nodule in a MEN type 1 patient. J Clin Ultrasound 2014; 42:212-214. [PMID: 24037737 DOI: 10.1002/jcu.22090] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2012] [Revised: 05/06/2013] [Accepted: 07/08/2013] [Indexed: 06/02/2023]
Abstract
A 59-year-old woman with classic manifestations of hyperparathyroidism associated with multiple endocrine neoplasia type 1 presented with a right adrenal mass and two pituitary microadenomas on imaging studies. For evaluation of hypercalcemia, (99m) Tc-MIBI scintigraphy was done and showed focal uptake at the thyroid level of the right anterior neck. Subsequent neck sonography showed several thyroid nodules, but there was no parathyroid tumor. Percutaneous fine-needle aspiration of the dominant thyroid nodule indicated a follicular nodule. After surgery, final histopathology revealed intrathyroidal parathyroid carcinoma. This case illustrates the difficulty in diagnosing parathyroid carcinoma via fine-needle aspiration.
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Affiliation(s)
- Kyung Mi Lee
- Department of Radiology, Graduate College of Medicine, Kyung Hee University, #26 Kyunghee-daero, Dongdaemun-gu, Seoul, 130-702, Korea
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Min SY, Kim YH, Park WS. Acute phlegmonous gastritis complicated by delayed perforation. World J Gastroenterol 2014; 20:3383-3387. [PMID: 24696618 PMCID: PMC3964411 DOI: 10.3748/wjg.v20.i12.3383] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 12/31/2013] [Accepted: 01/20/2014] [Indexed: 02/06/2023] Open
Abstract
Here, we report on a case of acute phlegmonous gastritis (PG) complicated by delayed perforation. A 51-year-old woman presented with severe abdominal pain and septic shock symptoms. A computed tomography scan showed diffuse thickening of the gastric wall and distention with peritoneal fluid. Although we did not find definite evidence of free air on the computed tomography (CT) scan, the patient’s clinical condition suggested diffuse peritonitis requiring surgical intervention. Exploratory laparotomy revealed a thickened gastric wall with suppurative intraperitoneal fluid in which Streptococcus pyogenes grew. There was no evidence of gastric or duodenal perforation. No further operation was performed at that time. The patient was conservatively treated with antibiotics and proton pump inhibitor, and her condition improved. However, she experienced abdominal and flank pain again on postoperative day 10. CT and esophagogastroduodenoscopy showed a large gastric ulcer with perforation. Unfortunately, although the CT showed further improvement in the thickening of the stomach and the mucosal defect, the patient’s condition did not recover until a week later, and an esophagogastroduodenoscopy taken on postoperative day 30 showed suspected gastric submucosal dissection. We performed total gastrectomy as a second operation, and the patient recovered without major complications. A pathological examination revealed a multifocal ulceration and necrosis from the mucosa to the serosa with perforation.
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Park WS, Lee KS, Chun JH, Urm SH, Lee DS, Lee DY, Park SG, Seo SK, Heo SJ, Qian ZJ, Jung WK, Choi IW. Investigation of the Antiasthmatic Properties of Ethanol Extract of <i>Callophyllis japonica</i> in Mice. TROP J PHARM RES 2014. [DOI: 10.4314/tjpr.v12i6.17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Park SJ, Lee KY, Park WS, Min SY. Clinical Outcomes of Reintroducing Oxaliplatin to Patients with Colorectal Cancer after Mild Hypersensitivity Reactions. Oncology 2013; 85:323-7. [DOI: 10.1159/000355831] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Accepted: 09/17/2013] [Indexed: 11/19/2022]
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Park WS, Chung KW, Young MS, Kim SK, Lee YJ, Lee EK. Differential protein expression of lymph node metastases of papillary thyroid carcinoma harboring the BRAF mutation. Anticancer Res 2013; 33:4357-4364. [PMID: 24123003] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
BACKGROUND The prognostic role of the T1799A BRAF mutation is controversial. We investigated the protein expression in papillary thyroid carcinoma (PTCs) samples harboring the specific mutation using proteomic tools. MATERIALS AND METHODS We performed two-dimensional gel electrophoresis to identify differential protein expression regarding lymph node metastasis (LNM). Proteins were identified by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. Immunohistochemical staining was performed for 38 PTCs harboring the mutation. We validated the association between these proteins and clinicopathological factors in a test set of 121 PTCs. RESULTS The expression of vimentin was increased in PTCs with LNM, but the one for HSP60, SOD2 and PEBP1 was increased in samples without LNM. HSP60 protein was up-regulated in PTCs without LNM (84.2% vs. 36.8%. p=0.003) and in PTCs without LNM harboring the mutation (58% vs. 41.8%. p=0.003) in the test set as shown by immunohistochemical staining. CONCLUSION HSP60 protein expression may inhibit LNM in PTCs harboring the BRAF mutation and may be a useful prognostic marker.
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Affiliation(s)
- Won Seo Park
- Division of Endocrine Surgery, Department of Surgery, Asan Medical Center, 88, Olympic-ro 43-gil, Songpao-gu, Seoul, 138-736, Republic of Korea.
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Abstract
Peritoneal loose bodies (PLBs) are usually discovered incidentally during laparotomy or autopsy. A few cases of giant PLBs presenting with various symptoms have been reported in the literature. Here, we describe a case of a giant PLB incidentally found in the pelvic cavity of a 50-year-old man. Computed tomography revealed a free ovoid mass in the pelvic cavity that consisted of central dense, heterogeneous calcifications and peripheral soft tissue. The mass was an egg-shaped, hard, glistening concretion measuring 7.5×7.0×6.8 cm and weighing 160 g. This concretion consisted of central necrotic fatty tissue surrounded by concentrically laminated, acellular, fibrous material. Small PLBs usually do not require any specific treatment. However, if PLBs cause alimentary or urinary symptoms due to their large size, surgical removal may be recommended. It is essential for clinicians to be aware of this entity and its characteristic features to establish the correct diagnosis.
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Affiliation(s)
- Hyun-Soo Kim
- Department of Experimental Analysis, Aerospace Medical Center, Republic of Korea Air Force, Cheongju, Korea
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Jung H, Kim BG, Han WH, Lee JH, Cho JY, Park WS, Maurice MM, Han JK, Lee MJ, Finley D, Jho EH. Deubiquitination of Dishevelled by Usp14 is required for Wnt signaling. Oncogenesis 2013; 2:e64. [PMID: 23958854 PMCID: PMC3759127 DOI: 10.1038/oncsis.2013.28] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2013] [Accepted: 07/13/2013] [Indexed: 12/14/2022] Open
Abstract
Dishevelled (Dvl) is a key regulator of Wnt signaling both in the canonical and non-canonical pathways. Here we report the identification of a regulatory domain of ubiquitination (RDU) in the C-terminus of Dvl. Mutations in the RDU resulted in accumulation of polyubiquitinated forms of Dvl, which were mainly K63 linked. Small interfering RNA-based screening identified Usp14 as a mediator of Dvl deubiquitination. Genetic and chemical suppression of Usp14 activity caused an increase in Dvl polyubiquitination and significantly impaired downstream Wnt signaling. These data suggest that Usp14 functions as a positive regulator of the Wnt signaling pathway. Consistently, tissue microarray analysis of colon cancer revealed a strong correlation between the levels of Usp14 and β-catenin, which suggests an oncogenic role for Usp14 via enhancement of Wnt/β-catenin signaling.
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Affiliation(s)
- H Jung
- Department of Life Science, The University of Seoul, Seoul, Korea
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Park KS, Lee KE, Ku DH, Kim SJ, Park WS, Kim HY, Kwon MR, Youn YK. Antiadhesive effect and safety of oxidized regenerated cellulose after thyroidectomy: a prospective, randomized controlled study. J Korean Surg Soc 2013; 84:321-9. [PMID: 23741689 PMCID: PMC3671000 DOI: 10.4174/jkss.2013.84.6.321] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Revised: 03/05/2013] [Accepted: 03/20/2013] [Indexed: 11/30/2022]
Abstract
PURPOSE To evaluate the antiadhesive effects and safety of an oxidized regenerated cellulose (Interceed) after thyroidectomy. METHODS Seventy-six thyroidectomized patients were prospectively randomized into two groups with regard to the use of Interceed. We evaluated each group for their adhesive symptoms using four subjective and four objective items at the 2nd week, 3rd and 6th month after thyroidectomy. All patients were examined for vocal cord motility by indirect laryngoscope at each period. RESULTS Total adhesion scores at each postoperative follow-up period decreased with time, but were not significantly different in each group. The median score for swallowing discomfort for liquid was significantly lower in the Interceed group than in the control group 2 weeks after surgery. In addition, the severity of skin adhesion to the trachea was reduced in the Interceed group compared with the control group 6 months after surgery. During the study, there were no adverse effects or significant differences in postoperative complications between the groups. CONCLUSION Interceed appeared to be safe and effective in improving neck discomfort at early postoperative periods and preventing skin adhesion to the trachea 6 months after thyroidectomy.
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Affiliation(s)
- Kyoung Sik Park
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
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Na KY, Kim HS, Sung JY, Park WS, Kim YW. Papillary Carcinoma of the Thyroid Gland with Nodular Fasciitis-like Stroma. Korean J Pathol 2013; 47:167-71. [PMID: 23667377 PMCID: PMC3647130 DOI: 10.4132/koreanjpathol.2013.47.2.167] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Revised: 06/12/2012] [Accepted: 08/03/2012] [Indexed: 11/19/2022]
Abstract
Papillary thyroid carcinoma with nodular fasciitis-like stroma (PTC-NFS) is a rare variant of PTC. The term 'PTC with fibromatosis-like stroma' has been used as a synonym to describe this variant. It is characterized by extensive proliferation of fibroblasts and myofibroblasts in the tumor stroma, which occurs in up to 80% of the tumors. We herein describe a case of PTC-NFS which developed in a 49-year-old woman with the demonstration of findings of ultrasonography, fine needle aspiration cytology and histological examination of the lesion. To characterize the stromal components, we investigated the expression of several immunohistochemical markers which have been shown to be expressed differently in nodular fasciitis (NF) and fibromatosis (FM). The immunostaining results demonstrated nuclear and cytoplasmic accumulation of β-catenin, cytoplasmic transforming growth factor-β expression and nuclear Smad expression in the stromal cells, suggesting that the stromal cells in this case have similar molecular profiles to those of FM rather than NF.
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Affiliation(s)
- Ki Yong Na
- Department of Pathology, Graduate School of Medicine, Kyung Hee University, Seoul, Korea
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Abstract
Peritoneal serous papillary carcinoma (PSPC), a rare primary malignancy arising from the abdominal and pelvic peritoneum, is characterized by peritoneal carcinomatosis with ascites and a histological pattern similar to that of papillary serous ovarian carcinoma. We herein describe a rare case of PSPC with unusual clinical presentations involving a single primary tumor originating from the peritoneal lining of the sigmoid colon with no evidence of intraperitoneal spread, pelvic lymph node involvement or distant metastasis. Awareness of such unusual presentations of PSPC should assist in the diagnosis of this disease, thereby improving the management of patients with this condition.
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Affiliation(s)
- Hyun-Soo Kim
- Aerospace Medical Research Center, Aerospace Medical Center, Republic of Korea Air Force, Korea
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Han SA, Song JY, Min SY, Park WS, Kim MJ, Chung JH, Kwon KH. A genetic association analysis of polymorphisms, rs2282695 and rs12373539, in the FOSB gene and papillary thyroid cancer. Exp Ther Med 2012. [PMID: 23181129 PMCID: PMC3503696 DOI: 10.3892/etm.2012.604] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
The FOSB gene is involved in cell proliferation, differentiation and transformation in several tumor types. We investigated whether coding single-nucleotide polymorphisms (cSNPs) and promoter SNPs of FOSB contribute to the development of papillary thyroid cancer (PTC). We also assessed the associations between FOSB SNPs and the clinicopathological characteristics of PTC. One coding SNP (rs2282695, Ala39Ala) and one promoter SNP (rs12373539, −158) in the FOSB gene were genotyped using direct sequencing in 94 PTC patients and 213 healthy controls. Genetic data were analyzed using SNPStats, HelixTree and SNPAnalyzer. PTC patients were dichotomized and compared with respect to clinicopathological characteristics of PTC. We detected an association between PTC and cSNP (rs2282695) in FOSB [codominant model 1 (C/C vs. G/C); OR=1.75; 95% CI, 1.04–2.94; P=0.024; codominant model 2 (C/C vs. G/G): OR=2.55; 95% CI, 1.15–5.64; P=0.045; dominant model: OR=1.89; 95% CI, 1.16–3.08; P=0.010; Log-additive model: OR=1.64; 95% CI, 1.15–2.35; P=0.007]. The G allele was a risk allele in the geno-type and allele analyses of cSNP (rs2282695) in the FOSB gene (OR=1.57; 95% CI, 1.10–2.24; P=0.012). A promoter SNP (rs12373539) in FOSB was associated with cervical lymph node metastasis of PTC [codominant model 1 (G/G vs. A/G): OR=0.23; 95% CI, 0.07–0.72; P=0.016; codominant model 2 (G/G vs. A/A): OR=0.21; 95% CI, 0.02–1.96; P=0.0.05; dominant model: OR=0.22; 95% CI, 0.08–0.66; P=0.004; overdominant model: OR=0.27; 95% CI, 0.09–0.84; P=0.02; log-additive model: OR=0.31; 95% CI, 0.12–0.78; P=0.006]. The A allele was a protective allele in the genotype and allele analyses of SNP (rs12373539) in the FOSB gene promoter (OR=0.34; 95% CI, 0.14–0.83; P=0.017). Variation in a FOSB cSNP (rs2282695) may be associated with risk of PTC. The FOSB promoter SNP (rs12373539) may be associated with lymph node metastasis of PTC.
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Affiliation(s)
- Sang-Ah Han
- Department of Surgery, School of Medicine, Kyung Hee University, Seoul
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Abstract
Gastrointestinal stromal tumors (GISTs) can present with focal calcification. However, the presence of extensive calcification that constitutes the major portion of a GIST is extremely rare and can be associated with diagnostic pitfalls. We herein present the first two cases of rare gastric GIST with predominantly calcified components that mimicked pancreatic solid and pseudopapillary neoplasms with extensive calcification. In patients presenting with hyper-dense, heavily calcified masses in the abdominal cavity, the possibility of GIST should be considered in the differential diagnosis. A careful search for cellular areas and the judicious application of immunostaining will thus make it possible to make a correct diagnosis.
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Affiliation(s)
- Hyun-Soo Kim
- Aerospace Medical Research Center, Aerospace Medical Center, Republic of Korea Air Force, Korea
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Kim HY, Park WY, Lee KE, Park WS, Chung YS, Cho SJ, Youn YK. Comparative analysis of gene expression profiles of papillary thyroid microcarcinoma and papillary thyroid carcinoma. J Cancer Res Ther 2011; 6:452-7. [PMID: 21358079 DOI: 10.4103/0973-1482.77103] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
PURPOSE Papillary thyroid carcinomas (PTCs) measuring 1.0 cm or less were separately defined as papillary thyroid microcarcinomas (PTMs) by the World Health Organization, emphasizing on their benign behavior. However, some reported that PTMs may have aggressive behavior, can cause regional, or even distant metastases. But till now, the characteristics of PTMs were only reviewed and described by the clinicopathological parameters, and no analysis of PTM by the gene level is available. We report on the gene expression profiles of PTMs by the oligonucleotide microarrays and the results of comparative analysis with those of PTCs. MATERIALS AND METHODS The gene expression profiles of 25 pairs of PTMs and their normal thyroid tissue counterparts, and 11 pairs of PTCs and their normal counterparts, were analyzed by Affymetrix Human Genome U133A. Data were analyzed by the SAM and the DAVID 2008 program to detect differentially expressed genes in supervised sample classification. RESULTS Two-hundred thirteen statistically significant up-regulated genes and -183 significant down-regulated genes of PTMs compared with their normal counterpart thyroid tissues, which were mainly cell adhesion-related genes and immune response genes, were detected. Two-hundred sixty-one up-regulated and -157 down-regulated genes of PTCs were also detected. In the comparative analyses of gene expression profiles of PTMs and PTCs, no significant difference was found. CONCLUSION PTM should not be considered as the simple occult indolent thyroid cancer, but as the earlier stage of disease which eventually evolves into PTC, because the gene expression profiles of PTMs were not different from those of PTCs.
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Affiliation(s)
- Hoon Yub Kim
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
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Jun NH, Lee JW, Song JW, Koh JC, Park WS, Shim YH. Optimal effect-site concentration of remifentanil for preventing cough during emergence from sevoflurane-remifentanil anaesthesia. Anaesthesia 2011; 65:930-5. [PMID: 20645945 DOI: 10.1111/j.1365-2044.2010.06450.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
This randomised, double-blinded, controlled trial was designed to identify the optimal dose of remifentanil for cough suppression without adverse effects during emergence from sevoflurane-remifentanil anaesthesia for thyroidectomy. One hundred and four patients were randomly assigned to maintain target effect-site concentrations of remifentanil at 0 (control group), 1.0 (remifentail 1 group), or 1.5 ng.ml(-1) (remifentanil 1.5 group) during emergence. The incidence of coughing was lower in the remifentanil 1.5 group (31%) than in the control group (74%) or remifentanil 1 group (63%) (p = 0.0004). In addition, the severity of coughing during extubation was lower in the remifentanil 1.5 group (median (IQR [range]) 0 (0-1 [0-1]) than in the control group (1 (0-2 [0-3])) and remifentanil 1 group (1 (0-2 [0-3])) (p = 0.004). Haemodynamic changes were reduced, but emergence time and stay in the post-anaesthesia care unit was prolonged in the remifentanil 1.5 group. Maintaining the remifentanil effect-site concentration at 1.5 ng.ml(-1) during emergence from sevoflurane-remifentanil anaesthesia reduces the incidence and severity of coughing without serious adverse events and may provide haemodynamic stability in patients undergoing thyroidectomy. However, awakening may be delayed.
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Affiliation(s)
- N H Jun
- Department of Anaesthesiology and Pain Medicine and Anaesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
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Song JH, Maeng EJ, Cao Z, Kim SY, Nam SW, Lee JY, Park WS. The Glu346Lys polymorphism and frameshift mutations of the Methyl-CpG Binding Domain 4 gene in gastrointestinal cancer. Neoplasma 2009; 56:343-7. [PMID: 19469655 DOI: 10.4149/neo_2009_04_343] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
MBD4 (Methyl-CpG Binding Domain 4) is a human DNA repair protein that may be involved in DNA mismatch repair. The polymorphisms and frameshift mutations in MBD4 may influence cancer susceptibility and the development of cancer. The specific aim of this study was to investigate whether frameshift mutations of the MBD4 gene and the codon 346 polymorphism were associated with microsatellite instability (MSI) and the risk for gastrointestinal cancer. We examined the MSI, frameshift mutations and polymorphisms of the MBD4 gene in 84 patients with gastric cancers, 82 colorectal cancers and 299 healthy controls. MSI was found in 19 (22.6%) and 26 (31.7%) of the gastric and colorectal cancer samples, respectively. The mutation analysis revealed no frameshift mutations in the MBD4 gene among the gastrointestinal cancers. The frequencies of genotypes: Glu/Glu, Glu/Lys and Lys/Lys were 41.7% (35/84), 41.7% (35/84) and 16.6% (14/84), respectively, in the gastric cancer cases, and 42.7% (35/82), 36.6% (30/82) and 20.7% (17/82), respectively, in the colorectal cancers. MSI was not associated with the MBD4 codon 346 polymorphism and there was no significant difference in the frequency of the genotypes between healthy controls and gastric cancer patients (P=0.2748). However, the MBD4 codon 346 polymorphism was significantly associated with the risk of colorectal cancer (P=0.0315). Our findings suggest that microsatellite instability may not be associated with frameshift mutations in the MBD4 gene, and that the MBD4 codon 346 polymorphism may play arole in colorectal cancer susceptibility in the Korean population.
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Affiliation(s)
- J H Song
- Department of Pathology, College of Medicine, The Catholic University of korea, Seoul, Korea
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Bae HJ, Song JH, Noh JH, Kim JK, Jung KH, Eun JW, Xie HJ, Ryu JC, Ahn YM, Kim SY, Lee SH, Yoo NJ, Lee JY, Park WS, Nam SW. Low frequency mutation of the Ephrin receptor A3 gene in hepatocellular carcinoma. Neoplasma 2009; 56:331-4. [PMID: 19469653 DOI: 10.4149/neo_2009_04_331] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
EphA3 is a component of the Eph/ephrin tyrosine kinase system, which participates in vasculature development. This receptor/ligand system is associated with various signaling pathways related to cell growth and viability, cytoskeletal organization, cell migration, and anti-apoptosis. Accumulated evidence suggests that aberrant regulation of EphA3 and its genetic alterations are implicated in the development and progression of various cancers. However, despite a high incidence of EphA3 over-expression, no such investigation has been performed in hepatocellular carcinoma. Thus, we investigated genetic alterations of the EphA3 gene in 73 cases of hepatocellular carcinoma by single-strand conformational polymorphism and sequencing. One novel D219V missense mutation was found in the extracellular domain of EphA3, and two genetic alterations in the intracellular sterile-alpha-motif (SAM) domain of EphA3 appeared to be polymorphisms. Although the functional assessments of this mutant are incomplete, it is believed that this novel EphA3 mutation may contribute to the development of hepatocellular carcinoma.
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Affiliation(s)
- H J Bae
- Department of Pathology, Microdissection Genomics Research Center, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Cao Z, Song JH, Park YK, Maeng EJ, Nam SW, Lee JY, Park WS. The p53 codon 72 polymorphism and susceptibility to colorectal cancer in Korean patients. Neoplasma 2009; 56:114-8. [PMID: 19239324 DOI: 10.4149/neo_2009_02_114] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
UNLABELLED TP53 is a major gene involved in the determination of proliferation or growth arrest at the cellular level. The polymorphism of p53 at codon 72 has been widely studied; this variation has been associated with cancer susceptibility and disease outcome. The specific aim of this study was to investigate whether the p53 codon 72 polymorphism is associated with individual susceptibility to colorectal cancer in Korean patients. The frequency of the polymorphism was examined in 156 patients with colorectal cancer and in 293 healthy controls. The polymorphism analysis was performed by amplifying exon 4 of p53 and digesting the products with restriction enzyme. The frequencies of genotypes: Arg/Arg, Arg/Pro and Pro/Pro were 34.6% (54/156), 43.0% (67/156) and 22.4% (35/156), respectively, in the cases with colorectal cancer, and 28.9% (114/293), 47.8% (140/293) and 13.3% (39/293), respectively, in the healthy controls. Statistically, there was a significant difference in the frequency of the genotypes when the healthy controls were compared to the patients with colorectal cancer (<em>p</em>=0.0459). The specific allele frequencies showed borderline significance (<em>p</em>=0.0502). Our findings suggest that the p53 Pro72 variant is associated with an increased risk for colorectal cancer in the Korean population. KEYWORDS p53, colorectal cancer, polymorphism, susceptibility, metastasis.
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Affiliation(s)
- Z Cao
- Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul, Korea
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