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Kang SH, Ahn IY, Kim HK, Kim WJ, Woo SH, Kang SH, Hong SA, Bae TH. A Rare Atypical Case of Asymptomatic and Spontaneous Intraneural Hematoma of Sural Nerve: A Case Report and Literature Review. Arch Plast Surg 2024; 51:208-211. [PMID: 38596157 PMCID: PMC11001446 DOI: 10.1055/a-2218-8461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 11/24/2023] [Indexed: 04/11/2024] Open
Abstract
Intraneural hematoma is a rare disease that results in an impaired nerve function because of bleeding around the peripheral nerve, with only 20 cases reported. Trauma, neoplasm, and bleeding disorders are known factors for intraneural hematoma. However, here we report atypical features of asymptomatic and spontaneous intraneural hematoma which are difficult to diagnose. A 60-year-old woman visited our clinic with the complaint of a palpable mass on the right calf. She reported no medical history or trauma to the right calf and laboratory findings showed normal coagulopathy. Ultrasonography was performed, which indicated hematoma near saphenous vein and sural nerve or neurogenic tumor. We performed surgical exploration and intraneural hematoma was confirmed on sural nerve. Meticulous paraneuriotomy and evacuation was performed without nerve injury. Histological examination revealed intraneural hematoma with a vascular wall. No neurologic symptoms were observed. In literature review, we acknowledge that understanding anatomy of nerve, using ultrasonography as a diagnostic tool and surgical decompression is key for intraneural hematoma. Our case report may help establish the implications of diagnosis and treatment. Also, we suggested surgical treatment is necessary even in cases that do not present symptoms because neurological symptoms and associated symptoms may occur later.
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Affiliation(s)
- Shin Hyuk Kang
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Dongjak-Gu, Seoul, Republic of Korea
| | - Il Young Ahn
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Dongjak-Gu, Seoul, Republic of Korea
| | - Han Koo Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Dongjak-Gu, Seoul, Republic of Korea
| | - Woo Ju Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Gwangmyeong Hospital, Gwangmyeong-si, Gyeonggi-do, Republic of Korea
| | - Soo Hyun Woo
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Dongjak-Gu, Seoul, Republic of Korea
| | - Seung Hyun Kang
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Dongjak-Gu, Seoul, Republic of Korea
| | - Soon Auck Hong
- Department of Pathology, Chung-Ang University Hospital, Dongjak-Gu, Seoul, Republic of Korea
| | - Tae Hui Bae
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Gwangmyeong Hospital, Gwangmyeong-si, Gyeonggi-do, Republic of Korea
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2
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Lim CI, Choo HJ, Heo KN, Kim HK, Hassan MR, Sulatana S, Whiting IM, Mansbridge SC, Pirgozliev VR. Refining dietary metabolisable energy and crude protein levels in relation to duck performance and behaviour. Br Poult Sci 2024; 65:1-7. [PMID: 38047715 DOI: 10.1080/00071668.2023.2278482] [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: 06/12/2023] [Accepted: 09/20/2023] [Indexed: 12/05/2023]
Abstract
1. The study evaluated the effect of dietary metabolisable energy (ME) content and crude protein (CP) level on the growth performance and behaviour of ducks.2. A total of 720, Cherry Valley ducks were allocated to 36 pens in groups of 20 birds. For the initial period, from 1 to 21 d age, six diets, containing a standard (SME), low (LME) and high (HME) ME of 12.14, 11.93 and 12.35 MJ/kg, and standard (SCP) or high (HCP) CP contents of 210 or 220 g/kg diet, respectively, were mixed. For the period from 22 to 42 d age, the diets contained ME of 12.98 (SME), 12.77 (LME), 13.19 (HME) MJ/kg and the levels of CP were 170 (SCP) or 180 (HCP) g/kg, respectively.3. An ME by CP interaction was seen from 1 to 21 d age in ducks fed HME + HCP diet, which had greater weight gain than those fed LME + SCP (P < 0.05). Compared to LME + SCP, dietary HME decrease feeding but increased walking behaviour compared to LME + SCP and SME + SCP (P < 0.05). High CP in LME and SME diets increased drinking behaviour (P < 0.05), but there was no change in HME diet. Compared to LME, feeding HME reduced ground pecking (P < 0.05). Feeding HME reduced feeding behaviour (P < 0.05) from 22 to 42 d age. During the same period, standing behaviour was reduced in HCP + LME (P < 0.05). Drinking was reduced in LME + SCP compared to SME + HCP and HME + HCP (P < 0.05).4. A diet formulated with HME and HCP is effective for enhancing growth performance of ducks aged 1-21 d and saving time for feeding or ground pecking, which may induce spending more time on other activities.
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Affiliation(s)
- C I Lim
- Poultry Research Institute, National Institute of Animal Science, RDA, Pyeongchang, Republic of Korea
| | - H J Choo
- Poultry Research Institute, National Institute of Animal Science, RDA, Pyeongchang, Republic of Korea
| | - K N Heo
- Poultry Research Institute, National Institute of Animal Science, RDA, Pyeongchang, Republic of Korea
| | - H K Kim
- Poultry Research Institute, National Institute of Animal Science, RDA, Pyeongchang, Republic of Korea
| | - M R Hassan
- Poultry Production Research Division, Bangladesh Livestock Research Institute, Savar, Bangladesh
| | - S Sulatana
- Poultry Production Research Division, Bangladesh Livestock Research Institute, Savar, Bangladesh
| | - I M Whiting
- The National Institute of Poultry Husbandry, Harper Adams University, Newport, UK
| | - S C Mansbridge
- The National Institute of Poultry Husbandry, Harper Adams University, Newport, UK
| | - V R Pirgozliev
- The National Institute of Poultry Husbandry, Harper Adams University, Newport, UK
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Kim WJ, Kim HK. Current understanding of angiosarcoma: disease biology and evolving treatment. Arch Craniofac Surg 2023; 24:203-210. [PMID: 37919906 PMCID: PMC10622948 DOI: 10.7181/acfs.2023.00409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 08/28/2023] [Accepted: 09/12/2023] [Indexed: 11/04/2023] Open
Abstract
Angiosarcoma is a very rare soft tissue sarcoma that originates from endothelial cells and typically has a poor prognosis. It is most commonly found in elderly white men and can occur anywhere in the body, particularly in the head, neck, and scalp. Patients who have undergone previous radiation treatment or who have chronic lymphedema also face an elevated risk of this condition. Various genetic changes are suspected to contribute to the development of angiosarcoma, and these changes have been identified as potential targets for treatment. For localized disease, wide surgical resection is often the prudent course of action. A multidisciplinary approach, which may include surgery, radiotherapy, systemic chemotherapy, or immunotherapy, is typically the most effective way to achieve favorable outcomes. In this review, we discuss the general understanding of angiosarcoma and its management, with a particular focus on the current evolving treatments for the disease.
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Affiliation(s)
- Woo Ju Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Gwangmyeong Hospital, Chung-Ang University School of Medicine, Gwangmyeong, Korea
| | - Han Koo Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University School of Medicine, Seoul, Korea
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Kang SH, Kang SH, Kim WS, Kim HK, Kim WJ, Kim HS, Bae TH. An innovative method of reconstructed penis reduction: a case report. Transl Androl Urol 2022; 11:1798-1802. [PMID: 36632168 PMCID: PMC9827395 DOI: 10.21037/tau-22-488] [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: 07/21/2022] [Accepted: 11/12/2022] [Indexed: 11/25/2022] Open
Abstract
Background Surgery to reduce the size of the reconstructed penis is uncommon. Patients who have undergone total penis reconstruction may want to reduce the size of their reconstructed penis due to convenience issues. To reduce reconstructed penis size, surgical treatment is essential. However, no research has thus far reported on this methodology. Case Description A 50-year-old Asian man experienced a nearly total loss of his penis due to trauma 30 years ago. He underwent nearly total penis reconstruction using a tubed abdominal flap. The patient's reconstructed penis showed hypospadias, which caused discomfort during urination. The length of the penis was 17 cm. The patient felt that the reconstructed penis was too large, and a reduction surgery was planned for corrective action. Y-shape incision lines were applied on both lateral sides of the reconstructed penis to reduce the circumference, and curved incision lines were applied on the front and back of the penis to construct the neomeatus and glans of the penis. The incision was made, and the remnant tissue was dissected, with attention paid to avoid damage to the neourethra. After the tissue resection, the neourethra was isolated and resected to fit the height of the penis to construct the neomeatus and correct the hypospadias. An approximation was performed after the reconstructed penis reduction. Conclusions Two years after the surgery, there were no complications, such as urethral stricture or fistula, and the patient was satisfied with the shape and size of the reduced penis (9 cm). The surgical reconstructed penis reduction procedure introduced in this case report achieved satisfactory aesthetic and functional results.
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Affiliation(s)
- Shin Hyuk Kang
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Seoul, Korea
| | - Seung Hyun Kang
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Seoul, Korea
| | - Woo Seob Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Seoul, Korea
| | - Han Koo Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Seoul, Korea
| | - Woo Ju Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Gwangmyeong Hospital, Gwangmyeong-si, Korea
| | - Hyeon Seok Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Seoul, Korea
| | - Tae Hui Bae
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Gwangmyeong Hospital, Gwangmyeong-si, Korea
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Kim WJ, Kim HK. Current concepts of Kimura disease: pathophysiology and evolution of treatment. Arch Craniofac Surg 2022; 23:249-255. [PMID: 36596747 PMCID: PMC9816637 DOI: 10.7181/acfs.2022.01053] [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: 11/26/2022] [Accepted: 12/19/2022] [Indexed: 12/29/2022] Open
Abstract
Kimura disease (KD) is a chronic inflammatory disorder that frequently involves the subcutaneous tissue of the head and neck regions. It often manifests as regional lymphadenopathy or salivary gland enlargement in the affected area. The histologic architecture of the lymph nodes in KD patients is preserved, while the affected tissues show follicular hyperplasia and eosinophilic infiltration. No single modality has been adopted as an optimal treatment for KD. This article concentrates on the fundamental features of KD and reviews current approaches to its treatment.
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Affiliation(s)
- Woo Ju Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Gwangmyeong Hospital, Chung-Ang University School of Medicine, Gwangmyeong,
Korea
| | - Han Koo Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University School of Medicine, Seoul,
Korea
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Lee HJ, Park CS, Lee S, Park JB, Kim HK, Park SJ, Kim YJ, Lee SP. Systemic proinflammatory-profibrotic response in aortic stenosis patients with diabetes and its relationship with myocardial remodeling and clinical outcome. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
It is unclear whether and how diabetes mellitus may aggravate myocardial fibrosis and remodeling in the pressure-overloaded heart. We investigated the impact of diabetes on the prognosis of aortic stenosis (AS) patients and its underlying mechanisms using comprehensive noninvasive imaging studies and plasma proteomics.
Methods
Severe AS patients undergoing both echocardiography and cardiovascular magnetic resonance (CMR) (n=253 of which 66 had diabetes) comprised the imaging cohort. The degree of replacement and diffuse interstitial fibrosis by late gadolinium enhancement (LGE) and extracellular volume fraction (ECV) was quantified using CMR. Plasma samples were analyzed with the multiplex proximity extension assay for 92 proteomic biomarkers in a separate biomarker cohort of severe AS patients (n=100 of which 27 had diabetes).
Results
In the imaging cohort, diabetic patients were older (70.4±6.8 vs. 66.7±10.1 years) and had a higher prevalence of ischemic heart disease (28.8% vs. 9.1%), with more advanced ventricular diastolic dysfunction. On CMR, diabetic patients had increased replacement and diffuse interstitial fibrosis (LGE% 0.3 [0.0–1.6] versus 0.0 [0.0–0.5], p=0.009; ECV% 27.9 [25.7–30.1] versus 26.7 [24.9–28.5], p=0.025) (Figure 1).
Plasma proteomics analysis of the biomarker cohort revealed that 9 proteins (E-selectin, interleukin-1 receptor type 1, interleukin-1 receptor type 2, galectin-4, intercellular adhesion molecule 2, integrin beta-2, galectin-3, growth differentiation factor 15, and cathepsin D) are significantly elevated in diabetic AS patients (Figure 2). Pathway over-representation analyses of the plasma proteomics with Gene Ontology terms indicated that pathways related to inflammatory response and extracellular matrix components were enriched, suggesting that diabetes is associated with systemic effects that evoke proinflammatory and profibrotic response to the pressure-overloaded myocardium.
During follow-up (median 6.3 years [IQR 5.2–7.2]) of the imaging cohort, 232 patients received aortic valve replacement (AVR) with 53 unexpected heart failure admissions or death. Diabetes was a significant predictor of heart failure and death, independent of clinical covariates and AVR (hazard ratio 1.88, 95% confidence interval 1.06–3.31, p=0.030).
Conclusion
Plasma proteomic analyses indicate that diabetes potentiates the systemic proinflammatory and profibrotic milieu in AS patients. These systemic biological changes underlie the increase of myocardial fibrosis, diastolic dysfunction, and worse clinical outcomes in severe AS patients with concomitant diabetes.
Funding Acknowledgement
Type of funding sources: Foundation. Main funding source(s): National Research Foundation of Korea
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Affiliation(s)
- H J Lee
- Seoul National University Hospital, Internal Medicine , Seoul , Korea (Republic of)
| | - C S Park
- Seoul National University Hospital, Internal Medicine , Seoul , Korea (Republic of)
| | - S Lee
- Asan Medical Center, Internal Medicine , Seoul , Korea (Republic of)
| | - J B Park
- Seoul National University Hospital, Internal Medicine , Seoul , Korea (Republic of)
| | - H K Kim
- Seoul National University Hospital, Internal Medicine , Seoul , Korea (Republic of)
| | - S J Park
- Samsung Medical Center, Cardiovascular Imaging Center , Seoul , Korea (Republic of)
| | - Y J Kim
- Seoul National University Hospital, Internal Medicine , Seoul , Korea (Republic of)
| | - S P Lee
- Seoul National University Hospital, Internal Medicine , Seoul , Korea (Republic of)
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7
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Kim HK, Kang SH, Kim WS, Kang SH, Kim WJ, Kim HS, Bae TH. Scalp metastasis from an adenocarcinoma of the lung mimicking a cystic mass: case report and literature review. Arch Craniofac Surg 2022; 23:237-240. [PMID: 36373259 PMCID: PMC9663264 DOI: 10.7181/acfs.2022.00892] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 10/18/2022] [Accepted: 10/20/2022] [Indexed: 11/04/2023] Open
Abstract
A 67-year-old man visited our plastic surgery clinic complaining of a palpable protruding mass (2.0 × 2.5 cm) in the right occipital region. To establish an appropriate treatment plan for the cystic mass, brain magnetic resonance imaging was performed. A 2.2 cm nodular lesion with peripheral enhancement in the right occipital region of the scalp was confirmed. In addition, two rim-enhancing nodular lesions up to 9 mm with marked perilesional edema in the right frontal lobe were confirmed. The findings suggested metastasis from cancer. After further evaluations, a mass in the right lower lung field was identified as adenocarcinoma of the lung. Histological examination characterized the excised lesion as a cutaneous metastasis from lung adenocarcinoma. This case report shows that a cystic mass, which commonly occurs in the scalp, may indicate lung cancer. In particular, if a cystic mass of the scalp is identified in a person at high risk for lung cancer, appropriate evaluation and urgent treatment should be performed.
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Affiliation(s)
- Han Koo Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Seoul,
Korea
| | - Seung Hyun Kang
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Seoul,
Korea
| | - Woo Seob Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Seoul,
Korea
| | - Shin Hyuk Kang
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Seoul,
Korea
| | - Woo Ju Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Gwangmyeong Hospital, Gwangmyeong,
Korea
| | - Hyeon Seok Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Seoul,
Korea
| | - Tae Hui Bae
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Gwangmyeong Hospital, Gwangmyeong,
Korea
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8
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Yeung S, Kim HK, Carleton A, Munro J, Ferguson D, Monk AP, Zhang J, Besier T, Fernandez J. Integrating wearables and modelling for monitoring rehabilitation following total knee joint replacement. Comput Methods Programs Biomed 2022; 225:107063. [PMID: 35994872 DOI: 10.1016/j.cmpb.2022.107063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 07/24/2022] [Accepted: 08/08/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND AND OBJECTIVE Wearable inertial devices integrated with modelling and cloud computing have been widely adopted in the sports sector, however, their use in the health and medical field has yet to be fully realised. To date, there have been no reported studies concerning the use of wearables as a surrogate tool to monitor knee joint loading during recovery following a total knee joint replacement. The objective of this study is to firstly evaluate if peak tibial acceleration from wearables during gait is a good surrogate metric for computer modelling predicted functional knee loading; and secondly evaluate if traditional clinical patient related outcomes measures are consistent with wearable predictions. METHODS Following ethical approval, four healthy participants were used to establish the relationship between computer modelling predicted knee joint loading and wearable measured tibial acceleration. Following this, ten patients who had total knee joint replacements were then followed during their 6-week rehabilitation. Gait analysis, wearable acceleration, computer models of knee joint loading, and patient related outcomes measures including the Oxford knee score and range of motion were recorded. RESULTS A linear correlation (R2 of 0.7-0.97) was observed between peak tibial acceleration (from wearables) and musculoskeletal model predicted knee joint loading during gait in healthy participants first. Whilst patient related outcome measures (Oxford knee score and patient range of motion) were observed to improve consistently during rehabilitation, this was not consistent with all patient's tibial acceleration. Only those patients that exhibited increasing peak tibial acceleration over 6-weeks rehabilitation were positively correlated with the Oxford knee score (R2 of 0.51 to 0.97). Wearable predicted tibial acceleration revealed three patients with a consistent knee loading, five patients with improving knee loading, and two patients with declining knee loading during recovery. Hence, 20% of patients did not present with satisfactory joint loading following total knee joint replacement and this was not detected with current patient related outcome measures. CONCLUSIONS The use of inertial measurement units or wearables in this study provided additional insight into patients who were not exhibiting functional improvements in joint loading, and offers clinicians an 'off-site' early warning metric to identify potential complications during recovery and provide the opportunity for early intervention. This study has important implications for improving patient outcomes, equity, and for those who live in rural regions.
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Affiliation(s)
- S Yeung
- Auckland Bioengineering Institute, University of Auckland, Auckland, New Zealand
| | - H K Kim
- Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand; School of Kinesiology, Louisiana State University, United States
| | - A Carleton
- Auckland Bioengineering Institute, University of Auckland, Auckland, New Zealand
| | - J Munro
- Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand; Auckland City Hospital, Auckland District Health Board, Auckland, New Zealand
| | - D Ferguson
- Auckland City Hospital, Auckland District Health Board, Auckland, New Zealand
| | - A P Monk
- Auckland Bioengineering Institute, University of Auckland, Auckland, New Zealand; Auckland City Hospital, Auckland District Health Board, Auckland, New Zealand
| | - J Zhang
- Auckland Bioengineering Institute, University of Auckland, Auckland, New Zealand
| | - T Besier
- Auckland Bioengineering Institute, University of Auckland, Auckland, New Zealand; Department of Engineering Science, University of Auckland, Auckland, New Zealand
| | - J Fernandez
- Auckland Bioengineering Institute, University of Auckland, Auckland, New Zealand; Department of Engineering Science, University of Auckland, Auckland, New Zealand.
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9
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Woo H, Kang SH, Kwon Y, Choi Y, Kim J, Ha DH, Tanaka M, Okochi M, Kim JS, Kim HK, Choi J. Sensitive and specific capture of polystyrene and polypropylene microplastics using engineered peptide biosensors. RSC Adv 2022; 12:7680-7688. [PMID: 35424716 PMCID: PMC8982333 DOI: 10.1039/d1ra08701k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 02/19/2022] [Indexed: 12/17/2022] Open
Abstract
Owing to increased environmental pollution, active research regarding microplastics circulating in the ocean has attracted significant interest in recent times. Microplastics accumulate in the bodies of living organisms and adversely affect them. In this study, a new method for the rapid detection of microplastics using peptides was proposed. Among the various types of plastics distributed in the ocean, polystyrene and polypropylene were selected. The binding affinity of the hydrophobic peptides suitable for each type of plastic was evaluated. The binding affinities of peptides were confirmed in unoxidized plastics and plasma-oxidized plastics in deionised or 3.5% saline water. Also, the detection of microplastics in small animals' intestine extracts were possible with the reported peptide biosensors. We expect plastic-binding peptides to be used in sensors to increase the detection efficiency of microplastics and potentially help separate microplastics from seawater.
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Affiliation(s)
- Hyunjeong Woo
- School of Integrative Engineering, Chung-Ang University Seoul 06974 Republic of Korea
| | - Seung Hyun Kang
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital Seoul 06973 Republic of Korea
| | - Yejin Kwon
- School of Integrative Engineering, Chung-Ang University Seoul 06974 Republic of Korea
| | - Yonghyun Choi
- School of Integrative Engineering, Chung-Ang University Seoul 06974 Republic of Korea
| | - Jiwon Kim
- School of Integrative Engineering, Chung-Ang University Seoul 06974 Republic of Korea
| | - Don-Hyung Ha
- School of Integrative Engineering, Chung-Ang University Seoul 06974 Republic of Korea
| | - Masayoshi Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology 2-12-1-S1-24, O-okayama, Meguro-ku Tokyo 152-8552 Japan
| | - Mina Okochi
- Department of Chemical Science and Engineering, Tokyo Institute of Technology 2-12-1-S1-24, O-okayama, Meguro-ku Tokyo 152-8552 Japan
| | - Jin Su Kim
- Division of RI Application, Korea Institute Radiological and Medical Sciences Seoul 01812 Republic of Korea.,Radiological and Medico-Oncological Sciences, University of Science and Technology (UST) Seoul 01812 Republic of Korea
| | - Han Koo Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital Seoul 06973 Republic of Korea
| | - Jonghoon Choi
- School of Integrative Engineering, Chung-Ang University Seoul 06974 Republic of Korea
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10
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Salih L, Sabaratnam R, Kim HK, Bevan K. 491 Comparison of Pandemic and Pre-pandemic Practices of Managing Acute Appendicitis. Br J Surg 2021. [PMCID: PMC8524536 DOI: 10.1093/bjs/znab259.466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Aim Acute appendicitis (AA) is a common indication for abdominal surgery, with more than 30,000 appendicectomies performed in England per year. However, SARS-CoV-2 (COVID-19) changed usual surgical practices following advice to minimise laparoscopic surgery, and instead favouring conservative management, or open surgery for AA. Method In this study, we compared the management of 50 patients with suspected/confirmed AA during the first wave of the COVID-19 pandemic at a district general hospital (DGH) with our usual practices, against 50 patients admitted with suspected/confirmed AA during a similar time period, one year prior to the pandemic. Results Demographics of patients in both groups were comparable with median age of 34 in the pandemic vs 32.5 in the pre-pandemic group. 74% of patients in the pandemic group (PG) underwent imaging to confirm appendicitis, compared to 58% of patients in the pre-pandemic group (PPG). 64% of PG patients were treated conservatively, compared to 8% in PPG patients. Outcomes demonstrated re-attendance events of 12% in the PG, as compared to 10% in the PPG, although the follow up period was longer in the PPG. Despite a significantly smaller number of patients managed surgically during the pandemic, 27% of patients undergoing appendicectomies had post-operative complications in the PG, as compared to 7% in the PPG. Conclusions During the pandemic, more patients at our DGH with AA were treated conservatively, more patients had re-attendance events and post-operative complications when compared to patients in the pre-pandemic group.
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Affiliation(s)
- L Salih
- Bedford Hospital, Bedford, United Kingdom
| | | | - H K Kim
- Bedford Hospital, Bedford, United Kingdom
| | - K Bevan
- Bedford Hospital, Bedford, United Kingdom
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11
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Kim HK, Ku SY, Kim SH, Suh CS, Kim H. P–627 Optimal timing of day 6 blastocyst transfer in artificially prepared frozen-thawed embryo transfer cycles. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Study question
When is the optimal timing of day 6 (D6) blastocyst transfer between the 6thday (P6)and the 7th(P7) day of progesterone administration in artificially prepared frozen-thawed embryo transfer(FET) cycle
Summary answer
When transferring D6 blastocysts in artificially prepared FET cycles, live birth rate tended to be higher in P6 group than in P7 group.
What is known already
Blastocyst transfer in FET cycles has increased due to several reasons including convenience for optimization of endometrial synchronization, improvement of laboratory techniques and preimplantation genetic testing. Meanwhile, D6 blastocyst which cryopreserved on day 6 after being developed to the full blastocyst stage, presented lower pregnancy outcomes in FET cycle than D5 blastocysts. However, there have been few studies on the optimal duration of progesterone administration when transferring D6 blastocysts.
Study design, size, duration
This was a retrospective cohort study including patients who underwent frozen-thawed blastocyst transfer in artificially prepared cycles from January 2000 to May 2020. Patients with D6 blastocyst transfer on the 6th day of progesterone administration were included in D6-P6 group, and patients with D6 blastocyst transfer on the 7th day of progesterone administration were included in D6-P7 group.
Participants/materials, setting, methods
Increasing dose of estradiol valerate was administered from the 3rd day of menstruation: 4 mg/day for the first four days, 6 mg/day for next four days, and then 8 mg/day until the confirmation of pregnancy. Progesterone was administered from the 14th day of menstruation if the endometrial thickness reached ≥7 mm. The independent t-test or Mann-Whitney test, chi-square test, and logistic regression analysis were performed.
Main results and the role of chance
A total of 50 patients were included, and 13 patients underwent FET on P6 and 37 patients underwent FET on P7. Live birth rate was comparable between the P6 group and the P7 group (18.9% vs. 15.4%, p = 0.775). Live birth rate was higher in the D6-P6 group than in the D6-P7 group after adjusting for age, AMH, endometrial thickness on the starting day of progesterone administration and good embryo rate transferred with statistical significance (OR: 6.716, p = 0.005).
Limitations, reasons for caution
Limitations of the present study is the retrospective design and the small sample size. Caution is needed in extrapolating results of this study because only intramural and vaginal progesterone supplementations were included in this study.
Wider implications of the findings: Even if the duration of blastocyst formation was delayed, frozen-thawed D6 blastocyst may need to be considered for on P6 rather than P7. The difference of live birth rate is not statistically significant. This study should be acknowledged for the underestimation of the difference because of the small sample size.
Trial registration number
Not applicable
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Affiliation(s)
- H K Kim
- Seoul National University Hospital, Obstetrics & Gynecology, Seoul, Korea- South
| | - S.-Y Ku
- Seoul National University Hospital, Obstetrics & Gynecology, Seoul, Korea- South
| | - S H Kim
- Seoul National University Hospital, Obstetrics & Gynecology, Seoul, Korea- South
| | - C S Suh
- Seoul National University Hospital, Obstetrics & Gynecology, Seoul, Korea- South
| | - H Kim
- Seoul National University Hospital, Obstetrics & Gynecology, Seoul, Korea- South
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Kang SH, Sutthiwanjampa C, Kim HS, Heo CY, Kim MK, Kim HK, Bae TH, Chang SH, Kim WS, Park H. Optimization of oxygen plasma treatment of silicone implant surface for inhibition of capsular contracture. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.02.004] [Citation(s) in RCA: 1] [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] [Indexed: 11/25/2022]
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13
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Kim HS, Kim WS, Kim HK, Bae TH. Removal of intraosseous hemangioma in frontal bone under direct vision through a small incision. Arch Craniofac Surg 2021; 22:52-55. [PMID: 33714253 PMCID: PMC7968979 DOI: 10.7181/acfs.2020.00661] [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: 11/17/2020] [Revised: 01/03/2021] [Accepted: 02/05/2021] [Indexed: 11/11/2022] Open
Abstract
Complete surgical excision within a margin of normal healthy bone is the treatment of choice for intraosseous hemangioma. A 56-year-old man visited with complaints of a firm, mildly tender, immovable, and palpable mass on the right forehead (size: 1.5× 1.5 cm). Non-contrast brain computed tomography performed preoperatively revealed a 1.5 cm heterogenous osteolytic lesion with suspected internal trabeculation in the right frontal bone. Under general anesthesia, a 2 cm transverse incision was made on the forehead skin rather than bicoronal incision. Full-thickness en bloc resection of the frontal bone including the mass was performed. The frontal bone was removed with care taken not to damage the frontal sinus mucosa. The frontal sinus was sealed with a collagen patch (Tachocomb) and a cranioplasty was performed using bone cement. At 6 months postoperative, a clean wound was confirmed without any complications, and there was no local recurrence. Surgical excision of intraosseous hemangioma in the frontal sinus bone can be performed via direct incision or the bicoronal approach. In this case, the direct incision approach was used to achieve smaller scars and faster recovery than the bicoronal approach.
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Affiliation(s)
- Hyeon Seok Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Seoul, Korea
| | - Woo Seob Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Seoul, Korea
| | - Han Koo Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Seoul, Korea
| | - Tae Hui Bae
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Seoul, Korea
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Romano MR, Parolini B, Allegrini D, Michalewska Z, Adelman R, Bonovas S, Bopp S, Tekin K, Fiser I, Boon CJF, Dijk ECH, Donvito G, Güngel H, Özdoğan Erkul S, Ünsal E, Osmanbaşoğlu Ö, Dinçer N, Erçalık NY, Yenerel NM, Amar J, Ennemoser A, Besozzi G, Sallam AAB, Ellabban AA, Chang W, Eandi CM, Demir M, Lee J, Pak K, Arrevola L, Sloka A, Morawski K, Kulig ‐ Stochmal A, Romanowska ‐ Dixon B, Striebe N, Feltgen N, Hoerauf H, Inan UU, Tanev I, Dyrda A, Schüler A, Lucke K, Brix A, Pape S, Kusserow‐Napp C, Loo PA, Kanra AY, Ardagil Akçakaya A, Arı Yaylalı S, Bae SH, Kim HK, Kim SJ, Han JR, Nam WH, Odrobina D, Lavaque E, Bertelli E, Coser S, Ziemssen F, Forlini M, Benatti C, Cavallini GM, Stefanickova J, Berrod J, Saksonov S, Lytvinchuk L, Moussa M, Stefaniotou M, Christodoulou E, Zayed MA, Oz O, Tassinari P, Koch P, Declercq C, Johnston R, Rusnak S, Penas S, Ozdek S, Ucgul Y, Cisiecki S, Dziegielewski K, Klimczak D, Michalewska Z, Michalewski J, Nawrocka Z, Nawrocki J, Ornafel K, Pikulski Z, Maciej M, Acar N, Elshafei MM, Hamon F, Soyeur R, Badat I, Brousseau B, Hermouet E, Peiretti E, Lee J, Ferreira N, Yoon H, Alkhars WI, Dudani A, Minu R, Telang O, MorePatil VG, Furtado MJ, Jo Y, Piccolino FC, Finzi A. An international collaborative evaluation of central serous chorioretinopathy: different therapeutic approaches and review of literature. The European Vitreoretinal Society central serous chorioretinopathy study. Acta Ophthalmol 2020; 98:e549-e558. [PMID: 31808315 DOI: 10.1111/aos.14319] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 11/02/2019] [Indexed: 01/14/2023]
Abstract
PURPOSE To study and compare the efficacy of different therapeutic options for the treatment of central serous chorioretinopathy (CSCR). METHODS This is a nonrandomized, international multicentre study on 1719 patients (1861 eyes) diagnosed with CSCR, from 63 centres (24 countries). Reported data included different methods of treatment and both results of diagnostic examinations [fluorescein angiography and/or optical coherent tomography (OCT)] and best-corrected visual acuity (BCVA) before and after therapy. The duration of observation had a mean of 11 months but was extended in a minority of cases up to 7 years. The aim of this study is to evaluate the efficacy of the different therapeutic options of CSCR in terms of both visual (BCVA) and anatomic (OCT) improvement. RESULTS One thousand seven hundred nineteen patients (1861 eyes) diagnosed with CSCR were included. Treatments performed were nonsteroidal anti-inflammatory eye drops, laser photocoagulation, micropulse diode laser photocoagulation, photodynamic therapy (PDT; Standard PDT, Reduced-dose PDT, Reduced-fluence PDT), intravitreal (IVT) antivascular endothelial growth factor injection (VEGF), observation and other treatments. The list of the OTHERS included both combinations of the main proposed treatments or a variety of other treatments such as eplerenone, spironolactone, acetazolamide, beta-blockers, anti-anxiety drugs, aspirin, folic acid, methotrexate, statins, vitis vinifera extract medication and pars plana vitrectomy. The majority of the patients were men with a prevalence of 77%. The odds ratio (OR) showed a partial or complete resolution of fluid on OCT with any treatment as compared with observation. In univariate analysis, the anatomical result (improvement in subretinal fluid using OCT at 1 month) was favoured by age <60 years (p < 0.005), no previous observation (p < 0.0002), duration less than 3 months (p < 0.0001), absence of CSCR in the fellow eye (p = 0.04), leakage outside of the arcade (p = 0.05) and fluid height >500 μm (p = 0.03). The OR for obtaining partial or complete resolution showed that anti-VEGF and eyedrops were not statistically significant; whereas PDT (8.5), thermal laser (11.3) and micropulse laser (8.9) lead to better anatomical results with less variability. In univariate analysis, the functional result at 1 month was favoured by first episode (p = 0.04), height of subretinal fluid >500 μm (p < 0.0001) and short duration of observation (p = 0.02). Finally, there was no statistically significant difference among the treatments at 12 months. CONCLUSION Spontaneous resolution has been described in a high percentage of patients. Laser (micropulse and thermal) and PDT seem to lead to significant early anatomical improvement; however, there is little change beyond the first month of treatment. The real visual benefit needs further clarification.
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Affiliation(s)
- Mario R Romano
- Department of Ophthalmology, Gavazzeni - Castelli Hospital, Humanitas University, Rozzano, Italy
| | - Barbara Parolini
- Department of Ophthalmology, Istituto Clinico S. Anna, Brescia, Italy
| | - Davide Allegrini
- Department of Ophthalmology, Gavazzeni - Castelli Hospital, Humanitas University, Rozzano, Italy
| | | | - Ron Adelman
- Department of Ophthalmology, Yale University, New Haven, Connecticut, USA
| | - Stefanos Bonovas
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy
| | - Silvia Bopp
- Department of Ophthalmology & Visual Science, Yale University School of Medicine, New Haven, Connecticut, USA
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Park J, Kang SH, Kim WS, Kim HK, Bae TH. A forehead hematoma as the initial clinical sign of lung cancer. Arch Craniofac Surg 2020; 21:198-201. [PMID: 32630995 PMCID: PMC7349134 DOI: 10.7181/acfs.2020.00129] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 06/19/2020] [Indexed: 12/25/2022] Open
Abstract
Primary lung cancer commonly metastasizes to the brain, bones, liver, and adrenal glands. In some cases, bone metastasis serves as the first presenting sign of lung cancer with bone pain and headache, but it is not common. The incidence of skull metastasis in lung squamous cell carcinoma (SCC) is low, and there have been only a few cases of skull metastases serving as the first sign of malignancy with skull mass and epidural bleeding; however, no similar cases have been reported regarding that of hematoma. We report a case of an 84-year-old man who first presented with a simple forehead hematoma and was eventually diagnosed with SCC of the lung.
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Affiliation(s)
- Jonghyun Park
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Shin Hyuk Kang
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Woo Seob Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Han Koo Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Tae Hui Bae
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
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16
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Park J, Kim HK, Kim WS, Bae TH. Extensive and aggressive growth of adenoid cystic carcinoma in the lacrimal gland. Arch Craniofac Surg 2020; 21:114-118. [PMID: 32380812 PMCID: PMC7206458 DOI: 10.7181/acfs.2019.00479] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 11/22/2019] [Indexed: 12/04/2022] Open
Abstract
Adenoid cystic carcinoma (ACC) in the lacrimal gland is a very rare disease with poor overall prognosis. Its primary treatment is surgical excision, including orbital exenteration and radical orbitectomy, which is combined with radiotherapy and chemotherapy. Age, histopathologic type, bone invasion, and tumor extent are known factors that affect the prognosis of ACC. Furthermore, perineural invasion is highly associated with local tumor recurrence and tumor base invasion. Here, we report a rare case of ACC in the lacrimal gland with superior sagittal sinus invasion that repeatedly recurred after the surgical excision.
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Affiliation(s)
- Jonghyun Park
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Han Koo Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Woo Seob Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Tae Hui Bae
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
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17
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Moon I, Lee SP, Kim MK, Park JB, Kim HK, Kim YJ, Sohn DW. P1274 Early surgery versus watchful waiting in patients with moderate aortic stenosis and left ventricular systolic dysfunction. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Aortic stenosis (AS) induces significant pressure overload to the left ventricle (LV) and its burden may increase if there is concomitant LV systolic dysfunction. Severe AS with LV systolic dysfunction is a class I indication for aortic valve replacement (AVR) irrespective of symptoms, however, this recommendation is not well established in those with moderate AS and LV systolic dysfunction. In this study, we sought to investigate the clinical impact of surgical AVR among patients with moderate AS and LV systolic dysfunction.
Methods
From 2001 to 2017, we retrospectively but consecutively identified patients with moderate AS and LV systolic dysfunction from a single tertiary hospital. Moderate AS was defined as aortic valve area between 1.0 and 1.5cm2 and LV systolic dysfunction as LV ejection fraction less than 50%. The primary outcome was all-cause death and we additionally analyzed cardiac death as a secondary endpoint. The outcomes were compared between those who underwent early surgical AVR at the stage of moderate AS versus those who were followed without AVR at the outpatient clinic.
Results
Among a total of 257 patients with moderate AS and concomitant LV systolic dysfunction (70.0 ± 11.3 years, 63.4% of male), 34 patients received early AVR. Patients in the AVR group was younger than the observation group (64.2 ± 8.1 vs. 70.9 ± 11.5, respectively), and had a lower prevalence of hypertension and chronic kidney disease. During a mean of 3-year follow up, 112 patients (47.5%) died and the overall death rate was 15.367 per 100 person-year (PY). The AVR group showed a significantly lower rate of all-cause death than the observation group (5.241PY vs. 18.160PY, p-value = 0.002). After multivariable Cox proportional hazard regression adjusting for age, sex, comorbidities and laboratory data, early AVR at the stage of moderate AS significantly reduced the risk of all-cause death (hazard ratio [HR] 0.340, 95% confidence interval [CI] 0.117 - 0.985, p-value = 0.047). However, there was no risk reduction of cardiac death (HR 0.578 95% CI 0.150 - 2.231, p-value = 0.426).
Conclusions
In patients with moderate AS and LV systolic dysfunction, AVR reduces the risk of all-cause death. A prospective design study is warranted to confirm our findings in the near future.
Abstract P1274 Figure. Kaplan-Meier curves for deaths
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Affiliation(s)
- I Moon
- Seoul National University Hospital, Department of Internal Medicine, Seoul, Korea (Republic of)
| | - S P Lee
- Seoul National University Hospital, Department of Internal Medicine, Seoul, Korea (Republic of)
| | - M K Kim
- Seoul National University Hospital, Department of Internal Medicine, Seoul, Korea (Republic of)
| | - J B Park
- Seoul National University Hospital, Department of Internal Medicine, Seoul, Korea (Republic of)
| | - H K Kim
- Seoul National University Hospital, Department of Internal Medicine, Seoul, Korea (Republic of)
| | - Y J Kim
- Seoul National University Hospital, Department of Internal Medicine, Seoul, Korea (Republic of)
| | - D W Sohn
- Seoul National University Hospital, Department of Internal Medicine, Seoul, Korea (Republic of)
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Kim HM, Kim HK, Lee JH, Park EA, Park JB, Lee SP, Kim YJ, Sohn DW, Lee YB, Kim YJ, Yoon JH. P1603 Changes of cardiac function in cirrhotic patients after liver transplantation. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.1021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
This study was supported by the grant of CJ healthcare 2016 research fund.
Background
Liver cirrhosis (LC) has been known to affect cardiovascular performance. Limited study have evaluated the alteration of myocardial function in patients with LC after liver transplantation (LT).
Purpose
The aim of study was to evaluate changes of cardiac function in patients with cirrhosis following LT using conventional and speckle-tracking echocardiography and late gadolinium enhancement (LGE) of cardiac magnetic resonance (MR).
Methods
Thirty-five patients with cirrhosis (mean age, 57.1 ± 9.0; male, 75%) who were listed for LT were prospectively enrolled. Patients underwent conventional, speckle-tracking echocardiography, and cardiac MR imaging with LGE. Echocardiography and cardiac MR were performed at pre and 1 year after LT. Cirrhotic patients were compared with normal control (n = 20, mean age, 65.0 ± 14.8; men, 11(55%)) and echocardiographic and cardiac MR data were compared pre and post LT.
Results
Conventional and speckle-tracking echocardiography and Cardiac MR imaging demonstrated hyperdynamic left ventricular (LV) function in patients with cirrhosis (LV ejection fraction (EF) with cardiac MR 67.8 ± 7.0% in LC vs. 63.4 ± 6.4% in control, P = 0.028; global longitudinal strain (GLS) -24.3 ± 2.6% in LC vs. -18.6 ± 2.2% in control, P < 0.001). There were no LGE in patients with cirrhosis and no significant differences in LV size, LV wall thickness, LV mass index, and diastolic function between cirrhotic patients and control group (all P > 0.1). Corrected QT interval (QTc) in electrocardiogram was prolonged in LC patients (P < 0.001). One-year after LT, LV end-diastolic diameter and LV end-diastolic volume significantly decreased (P = 0.016 and 0.022, respectively). Although LVEF showed no significant changes 1 year post-LT (P = 0.362), LV-GLS (from -24.7 ± 1.8% to -20.8 ± 3.4%, P < 0.001) significantly decreased. QTc interval also decreased 1 year after LT (from 470.4 ± 29.6msec to 428.2 ± 31.6msec, P = 0.001).
Conclusions
The present study demonstrated that cirrhotic patients showed hyperdynamic circulation and prolonged QTc interval compared with normal controls. After 1 year LT, LV size reduced and augmented LV function was normalized. Given that no LGE in cardiac MR and normalized GLS and QTc after LT, cardiac dysfunction in LC patients could be reversed by LT.
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Affiliation(s)
- H M Kim
- Mediplex Sejong Hospital, Incheon, Korea (Republic of)
| | - H K Kim
- Seoul National University Hospital, Cardiology, Seoul, Korea (Republic of)
| | - J H Lee
- Seoul National University Hospital, Gastroenterology, Seoul, Korea (Republic of)
| | - E A Park
- Seoul National University Hospital, Radiology, Seoul, Korea (Republic of)
| | - J B Park
- Seoul National University Hospital, Cardiology, Seoul, Korea (Republic of)
| | - S P Lee
- Seoul National University Hospital, Cardiology, Seoul, Korea (Republic of)
| | - Y J Kim
- Seoul National University Hospital, Cardiology, Seoul, Korea (Republic of)
| | - D W Sohn
- Seoul National University Hospital, Cardiology, Seoul, Korea (Republic of)
| | - Y B Lee
- Seoul National University Hospital, Gastroenterology, Seoul, Korea (Republic of)
| | - Y J Kim
- Seoul National University Hospital, Gastroenterology, Seoul, Korea (Republic of)
| | - J H Yoon
- Seoul National University Hospital, Gastroenterology, Seoul, Korea (Republic of)
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Hwang I, Lee JM, Park JB, Yoon YE, Lee SP, Kim HK, Kim YJ, Cho GY, Park SJ, Kim KH, Hong GR. P1368 Effect of angiotensin receptor blocker in patients with moderate or severe aortic stenosis: a randomized controlled trial. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Funding Acknowledgements
This study was supported by grants from Boryung Pharmacy Research Fund.
Background/Introduction: Pathophysiology of aortic stenosis (AS) and several previous studies suggested the potential role of angiotensin receptor blocker (ARB) in patients with AS.
Purpose
We aimed to investigate the effects of Fimasartan, an ARB, on exercise capacity and progression of AS in patients with moderate to severe AS.
Methods
We conducted a prospective, randomized, double-blind, placebo-controlled trial in 32 normotensive or controlled-hypertensive patients with moderate or severe AS. Study participants were randomized to Fimasartan 30 mg to 60 mg daily (n = 14) or placebo (n = 18) for 1 year, and underwent cardiopulmonary exercise test, 6-minute walk test, and echocardiography at 0, 6, and 12 months, with follow-up data available in 29 subjects.
Results
Significant reductions in blood pressures were observed in the Fimasartan group but not in the placebo group. Two of the 14 patients in the Fimasartan group withdrew the study due to mild symptoms probably related with the decreased blood pressure, and one patient decline the study protocol. After the 12-month treatment, the peak oxygen consumption (VO2; the primary outcome) in the Fimasartan group was significantly decreased (from 28.3 ± 5.9 to 25.4 ± 3.8 mL/min/kg, P = 0.021) but not in the placebo group (P for interaction = 0.046) (Figure 1A). The severity of AS showed a gradual progression in both groups, without inter-group differences (mean transaortic pressure; Fimasartan group, +4.0 ± 3.8 mmHg/year; placebo group, +5.3 ± 6.2 mmHg/year; P for interaction = 0.429) (Figure 1B). Parameters of left ventricular systolic and diastolic function did not change in both groups.
Conclusions
The use of ARB impaired exercise capacity in patients with moderate or severe AS, and did not prevent the progression of AS. However, due to the small number of participants, further studies are required to confirm these findings.
Abstract P1368 Figure.
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Affiliation(s)
- I Hwang
- Seoul National University Bundang Hospital, Seongnam, Korea (Republic of)
| | - J M Lee
- Samsung Medical Center, Cardiovascular Center, Seoul, Korea (Republic of)
| | - J B Park
- Seoul National University Hospital, Seoul, Korea (Republic of)
| | - Y E Yoon
- Seoul National University Bundang Hospital, Seongnam, Korea (Republic of)
| | - S P Lee
- Seoul National University Hospital, Seoul, Korea (Republic of)
| | - H K Kim
- Seoul National University Hospital, Seoul, Korea (Republic of)
| | - Y J Kim
- Seoul National University Hospital, Seoul, Korea (Republic of)
| | - G Y Cho
- Seoul National University Bundang Hospital, Seongnam, Korea (Republic of)
| | - S J Park
- Samsung Medical Center, Cardiovascular Center, Seoul, Korea (Republic of)
| | - K H Kim
- Chonnam National University Hospital, Gwangju, Korea (Republic of)
| | - G R Hong
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
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Bodenstein DF, Kim HK, Brown NC, Navaid B, Young LT, Andreazza AC. Mitochondrial DNA content and oxidation in bipolar disorder and its role across brain regions. NPJ Schizophr 2019; 5:21. [PMID: 31797868 PMCID: PMC6892804 DOI: 10.1038/s41537-019-0089-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 10/18/2019] [Indexed: 12/18/2022]
Abstract
The underlying pathology of bipolar disorder remains unknown, though evidence is accumulating to support a role of mitochondrial dysfunction. In this study, we aim to investigate electron transport chain complex I subunit NDUFS7 protein expression; mtDNA content; common deletion; and oxidation in the Broadmann area 24 (BA24), cerebellum, hippocampus, and prefrontal cortex from patients with bipolar disorder, schizophrenia, and non-psychiatric controls. Here, we demonstrate no changes in NDUFS7 in BA24, cerebellum or hippocampus, increases in mtDNA content in hippocampus of patients with bipolar disorder, and decreases in mtDNA oxidation in patients with bipolar disorder and schizophrenia, respectively. Paired analysis between BA24 and cerebellum reveal increases within NDUFS7 levels and mtDNA content in cerebellum of patients with bipolar disorder or schizophrenia. We found a positive correlation between NDUFS7 and mtDNA content (ND4 and ND5) when combining brain regions. Our study supports the involvement of mitochondrial dysfunction in bipolar disorder and schizophrenia.
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Affiliation(s)
- D F Bodenstein
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - H K Kim
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - N C Brown
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - B Navaid
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - L T Young
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada.,Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - A C Andreazza
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada. .,Department of Psychiatry, University of Toronto, Toronto, ON, Canada.
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Abstract
Cellulitis, one of most common diseases of everyday life, is often overlooked for its significance. Although cellulitis does not cause or lead to serious problems usually, its possibility to cause life-threatening problem should be known. In present case, a patient who had received acupuncture treatment a week earlier presented to the clinic with symptoms of facial cellulitis. The disease resolved within few weeks under empirical antibiotic treatment but recurred after 3 months. Under close history review of the patient, we found out that the patient had received craniectomy 20 years ago. The patient had blunt headache with no other neurological symptoms that could suspect cranial infection, but considering the risk originating from the patient’s surgical history, brain computed tomography (CT) was taken. CT images revealed abscess formation in the subgaleal and epidural spaces. Craniotomy with abscess evacuation was done promptly. With additional antibiotic treatment postoperatively, the disease resolved, and the 1-month postoperative follow-up brain CT showed no signs of abscess formation.
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Affiliation(s)
- Jonghyun Park
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Woo Seob Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Han Koo Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Tae Hui Bae
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
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Bach H, Jenkins V, Aledhaim A, Moayedi S, Schenkel SM, Kim HK. Prevalence of fentanyl exposure and knowledge regarding the risk of its use among emergency department patients with active opioid use history at an urban medical center in Baltimore, Maryland. Clin Toxicol (Phila) 2019; 58:460-465. [PMID: 31475588 DOI: 10.1080/15563650.2019.1657583] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Background: Overdose deaths from fentanyl and its analogs have increased significantly since 2013. There are limited data regarding the prevalence of fentanyl exposure among emergency department (ED) patients with active opioid use.Methods: We conducted a cross-sectional study at an urban hospital from May 20 to July 30, 2018. A convenience sample of adult ED patients with active opioid use, defined as opioid use within seven days prior to ED visit, were enrolled. Rapid Response® Single Drug Test Strip (BTNX Inc., Markham, Canada) was used to detect fentanyl in urine samples. Information on demographic, substance use history, and knowledge of fentanyl was obtained using a brief survey tool. Our primary outcome was the prevalence of fentanyl exposure; secondary outcomes included patients' knowledge regarding potency, risk of overdose death from fentanyl and intentional purchase of fentanyl.Results: During our study period, 451 patients reported active substance use. Of these, 208 reported active opioid use and 165 consented for the study. The median age was 49 years [interquartile range: 38, 57] and 77.0% (n = 127) were male; 42 participants (25.5%) presented to ED after an acute overdose event. Heroin was the preferred opioid of use in 90.8% of the participants, primarily via intranasal route (64.6%). Polysubstance use was reported in 98.8%, most commonly with cocaine (57.6%; n = 95). Fentanyl was detected in 104 out of 129 urine samples tested (80.6%). 84.2% (n = 139) identified fentanyl as highly potent and 85.5% (n = 141) recognized highest risk of death in fentanyl overdose. A larger proportion of non-overdose participants intentionally purchased fentanyl (34.1%; n = 42) compared to the overdose group (16.7%, n = 7; p = .04).Conclusions: The majority of ED patient with active opiate use were exposed to fentanyl while one in three participants intentionally purchased fentanyl despite their awareness of its potency and the high-risk of death from overdose.
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Affiliation(s)
- H Bach
- Department of Emergency Medicine, University of Maryland Medical Center, Baltimore, MD, USA
| | - V Jenkins
- University of Maryland School of Medicine, Baltimore, MD, USA
| | - A Aledhaim
- Department of Emergency Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
| | - S Moayedi
- Department of Emergency Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
| | - S M Schenkel
- Department of Emergency Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
| | - H K Kim
- Department of Emergency Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
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Abstract
Cellulitis is one of the most misdiagnosed disease, which could be lethal when misdiagnosed. There are a lot of diseases to consider in differential diagnosis of cellulitis. Especially when conventional treatment with antibiotics does not seem to work, other radiological examinations and biopsy should be considered to find out what is causing the symptoms. Our case presents a patient with anaplastic large cell lymphoma, who was first thought to have had cellulitis but was later found to have malignancy. We aim to highlight the significance of differential diagnosis in common symptoms.
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Affiliation(s)
- Jong Hyun Park
- 1 Chung-Ang University Hospital, Seoul, Korea.,2 Chung-Ang University, Seoul, Korea
| | - Tae Hui Bae
- 1 Chung-Ang University Hospital, Seoul, Korea.,2 Chung-Ang University, Seoul, Korea
| | - Woo Seob Kim
- 1 Chung-Ang University Hospital, Seoul, Korea.,2 Chung-Ang University, Seoul, Korea
| | - Han Koo Kim
- 1 Chung-Ang University Hospital, Seoul, Korea.,2 Chung-Ang University, Seoul, Korea
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25
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Kim WJ, Kim WS, Kim HK, Bae TH. Multiple foreign bodies causing an orocutaneous fistula of the cheek. Arch Craniofac Surg 2018; 19:139-142. [PMID: 29874906 PMCID: PMC6057133 DOI: 10.7181/acfs.2018.00017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 05/07/2018] [Indexed: 11/11/2022] Open
Abstract
Foreign bodies impacted in the maxillofacial region are often a diagnostic challenge. They can be a source of chronic inflammatory reactions and infections leading to the formation of an orocutaneous fistula. Such orocutaneous fistulas cause significant morbidity in most patients, eventually requiring surgery. Recently, we encountered a very rare case of an orocutaneous fistula caused by multiple foreign bodies in the cheek. Precise removal of the foreign bodies was required, and a double-sided anterolateral thigh free flap was used to reconstruct the defect. Surgeons should be aware of the complications of multiple foreign bodies and should be able to diagnose these on careful clinical examination.
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Affiliation(s)
- Woo Ju Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Woo Seob Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Han Koo Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Tae Hui Bae
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
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26
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Kang SH, Choi MS, Kim HK, Kim WS, Bae TH, Kim MK, Chang SH. Polydeoxyribonucleotide improves tendon healing following achilles tendon injury in rats. J Orthop Res 2018; 36:1767-1776. [PMID: 29094396 DOI: 10.1002/jor.23796] [Citation(s) in RCA: 11] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 10/26/2017] [Indexed: 02/04/2023]
Abstract
Tendon injuries are major musculoskeletal disorders. Polydeoxyribonucleotide activates the adenosine receptor subtype A2A, resulting in tissue growth and neogenesis. This experimental study confirms that polydeoxyribonucleotide can improve secretion of various growth factors, promote collagen synthesis, and restore tensile strength of the Achilles tendon in a rat model with Achilles tendon injury. Thirty-six male Sprague-Dawley rats, aged 7 weeks, were divided into two groups, and the Achilles tendon was transected and repaired using the modified Kessler's method. In the experimental group (n = 18), the rats received daily intraperitoneal administration of polydeoxyribonucleotide (8 mg/kg/day for 1, 2, or 4 weeks). The control groups received the same amount of normal saline. The rats were euthanized at 1, 2, and 4 weeks, and tissues from the repair site were harvested. The cross-sectional area of the tendon was significantly increased at 2 and 4 weeks in polydeoxyribonucleotide group (p = 0.008 and p = 0.017, respectively). Moreover, tendons in the polydeoxyribonucleotide group were more resistant to mechanical stress at 2 and 4 weeks (p = 0.041 and p = 0.041, respectively). The staining levels of collagen type I in the experimental group were significantly stronger at 2 and 4 weeks (p = 0.026 and p = 0.009, respectively). Furthermore, higher expression levels of fibroblast growth factor, vascular endothelial growth factor, and transforming growth factor β1 were detected in the experimental group at 4 weeks (p = 0.041, p = 0.026, and p = 0.041, respectively). This study confirms that polydeoxyribonucleotide can improve the tensile strength of the rats' Achilles tendon following injury and repair. © 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:1767-1776, 2018.
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Affiliation(s)
- Shin Hyuk Kang
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, 224-1 Heuksuk-Dong, Dongjak-Gu, Seoul, 156-755, Korea
| | - Min Seok Choi
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, 224-1 Heuksuk-Dong, Dongjak-Gu, Seoul, 156-755, Korea
| | - Han Koo Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, 224-1 Heuksuk-Dong, Dongjak-Gu, Seoul, 156-755, Korea
| | - Woo Seob Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, 224-1 Heuksuk-Dong, Dongjak-Gu, Seoul, 156-755, Korea
| | - Tae Hui Bae
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, 224-1 Heuksuk-Dong, Dongjak-Gu, Seoul, 156-755, Korea
| | - Mi Kyung Kim
- Department of Pathology, Chung-Ang University Hospital, 224-1 Heuksuk-Dong, Dongjak-Gu, Seoul, 156-755, Korea
| | - Seung Hwan Chang
- School of Mechanical Engineering, Chung-Ang University, 84 Heuksuk-Ro, Dongjak-Gu, Seoul, 156-755, Korea
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27
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Kim WJ, Kim WS, Kim HK, Bae TH. Reconstruction of Small Chest Wall Defects Caused by Tubercular Abscesses Using Two Different Flaps. Ann Thorac Surg 2018; 106:e249-e251. [PMID: 29752921 DOI: 10.1016/j.athoracsur.2018.04.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 04/03/2018] [Accepted: 04/07/2018] [Indexed: 11/16/2022]
Abstract
Tubercular infection of the chest wall is rare and typically progresses to abscess formation. Treatment of these abscesses combines medical therapy with surgical debridement, which can cause defects of various sizes. This case report describes reconstruction of relatively small chest wall defects caused by tubercular abscesses with the use of two different flaps: a lateral intercostal artery perforator flap and a split pectoralis major muscle flap. The use of these flap techniques may provide a novel approach to cover small chest wall defects caused by tubercular abscesses.
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Affiliation(s)
- Woo Ju Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Woo Seob Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Han Koo Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Tae Hui Bae
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea.
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28
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Kim JH, Jang JH, Yoon SW, Noh JY, Ahn MJ, Kim Y, Jeong DG, Kim HK. Detection of bovine coronavirus in nasal swab of non-captive wild water deer, Korea. Transbound Emerg Dis 2018; 65:627-631. [PMID: 29508550 PMCID: PMC7169857 DOI: 10.1111/tbed.12847] [Citation(s) in RCA: 12] [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: 01/03/2018] [Indexed: 11/29/2022]
Abstract
Bovine coronavirus (BCoV) is a causative agent of respiratory and enteric diseases in cattle and calves. BCoV infection was also evident in captive wild ruminants. Recently, water deer are recognized as the most common wildlife to approach farmhouses and livestock barns in Korea. Therefore, we investigated 77 nasal swab samples from non‐captive wild water deer (Hydropotes inermis) between November 2016 and September 2017 and identified three samples positive for coronavirus, indicating potential for respiratory shedding. The full genomic sequences of the water deer coronavirus were closely related to BCoV (>98%). Therefore, effective biosecurity system in bovine farms would be necessary to prevent contact between farm ruminants and free‐ranging wild water deer.
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Affiliation(s)
- J H Kim
- Infectious Diseases Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea
| | - J-H Jang
- Chungnam Wild Animal Rescue Center, Yesan, Korea
| | - S-W Yoon
- Infectious Diseases Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea.,Bio-Analytical Science Division, University of Science and Technology (UST), Daejeon, Korea
| | - J Y Noh
- Infectious Diseases Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea.,College of Veterinary Medicine, Chungbuk National University, Cheongju, Korea
| | - M-J Ahn
- Infectious Diseases Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea.,Bio-Analytical Science Division, University of Science and Technology (UST), Daejeon, Korea
| | - Y Kim
- Infectious Diseases Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea.,College of Veterinary Medicine, Chungbuk National University, Cheongju, Korea
| | - D G Jeong
- Infectious Diseases Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea.,Bio-Analytical Science Division, University of Science and Technology (UST), Daejeon, Korea
| | - H K Kim
- Infectious Diseases Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea
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29
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Kim JW, Woo SH, Jang SY, Kim WS, Bae TH, Kim HK. Facial Artery as a Recipient Vessel for Extensive Scalp Reconstruction With Free Omental Flap Without Vein Graft. J Craniofac Surg 2018; 29:e271-e273. [PMID: 29461371 DOI: 10.1097/scs.0000000000004309] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Most patients with reconstruction for extensive scalp defects require the use of a free flap. The suitability of the recipient vessel has a major impact on the surgery and postoperative outcome. Flaps that can be used to reconstruct the total scalp with a single flap include the latissimus dorsi (LD) and omental flaps; the LD flap is generally preferred since the omental flap results in relatively larger donor site morbidity. The recipient vessel most commonly used for scalp defect reconstruction is the superficial temporal vessel. The authors report a patient with successful total scalp reconstruction using a free omental flap on a patient whose bilateral superficial temporal arteries could not be used and who did not have available LD on both sides due to previous LD free flap surgeries for recurrent scalp angiosarcoma. In this patient, direct anastomosis of the flap to the right facial artery was performed without pedicle lengthening, such as vein graft or arteriovenous loops, and favorable outcome was achieved in terms of facial contour after recovery. The free omental flap is useful for reconstruction of extensive scalp defects without additional complex surgical procedures when other flaps are not viable or when the recipient vessel is located at a far distance.
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Affiliation(s)
- Jin Woo Kim
- Department of Plastic and Reconstructive Surgery, College of Medicine, Chung-Ang University, Seoul, Korea
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30
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Jang SY, Kim HK, Kim WS, Bae TH. Correction of Cicatricial Upper Eyelid Ectropion Using a Dermofat Graft and an Anti-Adhesive Agent. Arch Aesthetic Plast Surg 2018. [DOI: 10.14730/aaps.2018.24.1.39] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Suk Yoon Jang
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Han Koo Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Woo Seob Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Tae Hui Bae
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
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31
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Jung MJ, Kim HK, Choi SY, Kim SG, Jin SY. Solid pseudopapillary neoplasm of the pancreas with liver metastasis initially misinterpreted as benign haemorrhagic cyst. Malays J Pathol 2017; 39:327-330. [PMID: 29279599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Solid pseudopapillary neoplasm (SPN) of the pancreas is considered a low-malignant neoplasm with a good prognosis. However, 5% to 15% of patients with SPNs develop metastatic disease, most commonly in the liver. Metastatic hepatic malignancies that show pseudocystic features are rare. Here we describe the case of a middle-aged female with a cystic liver metastasis from SPN. To the best of our knowledge, SPN with a single cystic liver metastasis has not been described, although these tumours frequently undergo haemorrhagic-cystic degeneration. Thus, in these patients the marked cystic change could be misinterpreted as a benign lesion.
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Affiliation(s)
- M J Jung
- Soonchunhyang University College of Medicine, Department of Pathology, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea.
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32
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Kim JH, Son YD, Kim JM, Kim HK, Kim YB, Lee C, Oh CH. Interregional correlations of glucose metabolism between the basal ganglia and different cortical areas: an ultra-high resolution PET/MRI fusion study using 18F-FDG. ACTA ACUST UNITED AC 2017; 51:e6724. [PMID: 29160415 PMCID: PMC5685063 DOI: 10.1590/1414-431x20176724] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 09/12/2017] [Indexed: 11/29/2022]
Abstract
Basal ganglia have complex functional connections with the cerebral cortex and are involved in motor control, executive functions of the forebrain, such as the planning of movement, and cognitive behaviors based on their connections. The aim of this study was to provide detailed functional correlation patterns between the basal ganglia and cerebral cortex by conducting an interregional correlation analysis of the 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography (PET) data based on precise structural information. Fifteen participants were scanned with 7-Tesla magnetic resonance imaging (MRI) and high resolution research tomography (HRRT)-PET fusion system using 18F-FDG. For detailed interregional correlation analysis, 24 subregions of the basal ganglia including pre-commissural dorsal caudate, post-commissural caudate, pre-commissural dorsal putamen, post-commissural putamen, internal globus pallidus, and external globus pallidus and 80 cerebral regions were selected as regions of interest on the MRI image and their glucose metabolism were calculated from the PET images. Pearson's product-moment correlation analysis was conducted for the interregional correlation analysis of the basal ganglia. Functional correlation patterns between the basal ganglia and cerebral cortex were not only consistent with the findings of previous studies, but also showed new functional correlation between the dorsal striatum (i.e., caudate nucleus and putamen) and insula. In this study, we established the detailed basal ganglia subregional functional correlation patterns using 18F-FDG PET/MRI fusion imaging. Our methods and results could potentially be an important resource for investigating basal ganglia dysfunction as well as for conducting functional studies in the context of movement and psychiatric disorders.
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Affiliation(s)
- J H Kim
- Research Institute for Advanced Industrial Technology, College of Science and Technology, Korea University, Sejong, South Korea
| | - Y D Son
- Department of Biomedical Engineering, College of Health Science, Gachon University, Incheon, South Korea
| | - J M Kim
- Department of Electronics and Information Engineering, College of Science and Technology, Korea University, Sejong, South Korea
| | - H K Kim
- Department of Biomedical Engineering, College of Health Science, Gachon University, Incheon, South Korea
| | - Y B Kim
- Department of Neurosurgery, Gachon University Gil Medical Center, Gachon University School of Medicine, Incheon, South Korea
| | - C Lee
- Bioimaging Research Team, Korea Basic Science Institute, Cheongju, South Korea
| | - C H Oh
- Department of Electronics and Information Engineering, College of Science and Technology, Korea University, Sejong, South Korea
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33
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Hong TH, Cho JH, Shin SM, Kim HK, Choi YS, Zo JI, Shim YM, Kim J. F-063EXTENDED SLEEVE LOBECTOMY FOR CENTRALLY LOCATED NON-SMALL CELL LUNG CANCER: A 20-YEAR SINGLE CENTRE EXPERIENCE. Interact Cardiovasc Thorac Surg 2017. [DOI: 10.1093/icvts/ivx280.075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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34
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Shin S, Choi YS, Cho JH, Kim HK, Kim J, Zo JI, Shim YM. F-072PROGNOSTIC IMPACT OF PATHOLOGIC MICROSCOPIC LYMPHOVASCULAR INVASION IN COMPLETELY RESECTED EARLY STAGE NON-SMALL CELL LUNG CANCER: IMPLICATION TO THE T DESCRIPTOR. Interact Cardiovasc Thorac Surg 2017. [DOI: 10.1093/icvts/ivx280.084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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35
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Woo SH, Kim WS, Kim HK, Bae TH. Silicone Implant Sandwiched between Intact Nasal Bones with Fractured Nasal Bone Segments. Arch Craniofac Surg 2017; 18:59-61. [PMID: 28913306 PMCID: PMC5556747 DOI: 10.7181/acfs.2017.18.1.59] [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: 12/02/2016] [Revised: 01/25/2017] [Accepted: 01/26/2017] [Indexed: 11/11/2022] Open
Abstract
As the number of people who have undergone augmentation rhinoplasty has increased recently, nasal fractures are becoming more common after rhinoplasty. A silicone implant can affect the nasal fracture pattern, but there is no significant difference in treatment methods commonly. A 28-year-old female who had undergone augmentation visited our clinic with a nasal fracture. Computed tomography revealed that the silicone implant was sandwiched between the intact nasal bones with fractured bone fragments. In this case, open reduction was inevitable and a new silicone implant was inserted after reduction. Migration of the silicone implant beneath the nasal bone is a very rare phenomenon, but its accurate prevention and diagnosis is important because a closed reduction is impossible.
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Affiliation(s)
- Soo Hyun Woo
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Woo Seob Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Han Koo Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Tae Hui Bae
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
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36
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Chae MR, Kang SJ, Lee KP, Choi BR, Kim HK, Park JK, Kim CY, Lee SW. Onion (Allium cepa L.) peel extract (OPE) regulates human sperm motility via protein kinase C-mediated activation of the human voltage-gated proton channel. Andrology 2017; 5:979-989. [PMID: 28805023 DOI: 10.1111/andr.12406] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 06/13/2017] [Accepted: 06/27/2017] [Indexed: 01/14/2023]
Abstract
Onion (Allium cepa L.) and quercetin protect against oxidative damage and have positive effects on multiple functional parameters of spermatozoa, including viability and motility. However, the associated underlying mechanisms of action have not yet been identified. The aim of this study was to investigate the effect of onion peel extract (OPE) on voltage-gated proton (Hv1) channels, which play a critical role in rapid proton extrusion. This process underlies a wide range of physiological processes, particularly male fertility. The whole-cell patch-clamp technique was used to record the changes in Hv1 currents in HEK293 cells transiently transfected with human Hv1 (HVCN1). The effects of OPE on human sperm motility were also analyzed. OPE significantly activated the outward-rectifying proton currents in a concentration-dependent manner, with an EC50 value of 30 μg/mL. This effect was largely reversible upon washout. Moreover, OPE induced an increase in the proton current amplitude and decreased the time constant of activation at 0 mV from 4.9 ± 1.7 to 0.6 ± 0.1 sec (n = 6). In the presence of OPE, the half-activation voltage (V1/2 ) shifted in the negative direction, from 20.1 ± 5.8 to 5.2 ± 8.7 mV (n = 6), but the slope was not significantly altered. The OPE-induced current was profoundly inhibited by 10 μm Zn2+ , the most potent Hv1 channel inhibitor, and was also inhibited by treatment with GF109203X, a specific protein kinase C (PKC) inhibitor. Furthermore, sperm motility was significantly increased in the OPE-treated groups. OPE exhibits protective effects on sperm motility, at least partially via regulation of the proton channel. Moreover, similar effects were exerted by quercetin, the major flavonoid in OPE. These results suggest OPE, which is rich in the potent Hv1 channel activator quercetin, as a possible new candidate treatment for human infertility.
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Affiliation(s)
- M R Chae
- Department of Urology, Samsung Medical Center, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - S J Kang
- Department of Urology, Samsung Medical Center, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - K P Lee
- Laboratory of Physiology, College of Veterinary Medicine, Chungnam National University, Daejeon, Korea
| | - B R Choi
- Department of Urology, Medical School and Institute for Medical Sciences, Chonbuk National University, Research Institute and Clinical Trial Center of Medical Device of Chonbuk National University Hospital, Jeonju, Korea
| | - H K Kim
- College of Pharmacy, Kyungsung University, Busan, Korea
| | - J K Park
- Department of Urology, Medical School and Institute for Medical Sciences, Chonbuk National University, Research Institute and Clinical Trial Center of Medical Device of Chonbuk National University Hospital, Jeonju, Korea
| | - C Y Kim
- College of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Korea
| | - S W Lee
- Department of Urology, Samsung Medical Center, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Seoul, Korea
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37
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Choo SH, Lee SW, Chae MR, Kang SJ, Sung HH, Han DH, Chun JN, Park JK, Kim CY, Kim HK, So I. Effects of eupatilin on the contractility of corpus cavernosal smooth muscle through nitric oxide-independent pathways. Andrology 2017; 5:1016-1022. [PMID: 28719725 DOI: 10.1111/andr.12397] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 05/26/2017] [Accepted: 06/09/2017] [Indexed: 12/19/2022]
Abstract
Eupatilin (5,7-dihydroxy-3,4,6-trimethoxyflavone) is one of the main compounds present in Artemisia species. Eupatilin has both antioxidative and anti-inflammatory properties and a relaxation effect on vascular contraction regardless of endothelial function. We evaluated the relaxant effects of eupatilin on the corpus cavernosum (CC) of rabbits and the underlying mechanisms of its activity in human corpus cavernosum smooth muscle (CCSM) cells. Isolated rabbit CC strips were mounted in an organ bath system. A conventional whole-cell patch clamp technique was used to measure activation of calcium-sensitive K+ -channel currents in human CCSM cells. The relaxation effect of eupatilin was evaluated by cumulative addition (10-5 m ~ 3 × 10-4 m) to CC strips precontracted with 10-5 m phenylephrine. Western blotting analysis was performed to measure myosin phosphatase targeting subunit 1 (MYPT1) and protein kinase C-potentiated inhibitory protein for heterotrimeric myosin light chain phosphatase of 17-kDa (CPI-17) expression and to evaluate the effect of eupatilin on the RhoA/Rho-kinase pathway. Eupatilin effectively relaxed the phenylephrine-induced tone in the rabbit CC strips in a concentration-dependent manner with an estimated EC50 value of 1.2 ± 1.6 × 10-4 m (n = 8, p < 0.05). Iberiotoxin and tetraethylammonium significantly reduced the relaxation effect (n = 8, p < 0.001 and p = 0.003, respectively). Removal of the endothelium or the presence of L-NAME or indomethacin did not affect the relaxation effect of eupatilin. In CCSM cells, the extracellular application of eupatilin 10-4 m significantly increased the outward currents, and the eupatilin-stimulated currents were significantly attenuated by treatment with 10-7 m iberiotoxin (n = 13, p < 0.05). Eupatilin reduced the phosphorylation level of MYPT1 at Thr853 of MLCP and CPI-17 at Thr38. Eupatilin-induced relaxation of the CCSM cells via NO-independent pathways. The relaxation effects of eupatilin on CCSM cells were partially due to activation of BKCa channels and inhibition of RhoA/Rho-kinase.
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Affiliation(s)
- S H Choo
- Department of Urology, Ajou University School of Medicine, Suwon, Korea
| | - S W Lee
- Department of Urology, Samsung Medical Center, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - M R Chae
- Department of Urology, Samsung Medical Center, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - S J Kang
- Department of Urology, Samsung Medical Center, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - H H Sung
- Department of Urology, Samsung Medical Center, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - D H Han
- Department of Urology, Samsung Medical Center, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J N Chun
- Department of Physiology and Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
| | - J K Park
- Department of Urology, Institute for Medical Sciences, Medical School, Chonbuk National University, Research Institute and Clinical Trial Center of Medical Device of Chonbuk National University Hospital, Jeonju, Korea
| | - C Y Kim
- College of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Korea
| | - H K Kim
- College of Pharmacy, Kyungsung University, Busan, Korea
| | - I So
- Department of Physiology, Seoul National University College of Medicine, Seoul, Korea
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Kim HK, Ki CS, Kim YJ, Lee MS. Radiological Findings of Two Sisters with Aceruloplasminemia Presenting with Chorea. Clin Neuroradiol 2017; 27:385-388. [PMID: 28258281 DOI: 10.1007/s00062-017-0573-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 02/21/2017] [Indexed: 12/14/2022]
Affiliation(s)
- H K Kim
- Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine, Eonjuro 211, 06274, Seoul, South Korea
| | - C S Ki
- Department of Laboratory Medicine and Genetics, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Y J Kim
- Ilsong Institute of Life Science, Hallym University, Anyang, South Korea
| | - M S Lee
- Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine, Eonjuro 211, 06274, Seoul, South Korea.
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Kalinsky K, Lee S, Zhong X, Lim EA, Gunther JE, Hibshoosh H, Kim HK, Accordino M, Crew K, Hielscher A, Hershman DL. Abstract P4-01-06: Diffuse optical tomography can predict pathologic complete response in patients with HER2+ or triple negative breast cancer undergoing neoadjuvant chemotherapy. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p4-01-06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background
Pathologic complete response (pCR) predicts clinical outcome in women who receive neoadjuvant chemotherapy (NACT) for breast cancer. Identifying who will have a pCR early during NACT has the potential to save patients months of ineffective chemotherapy and limit unnecessary toxicity; however, no method currently is standardly used. Diffuse optical tomography (DOT) uses near-infrared light to measure concentrations of oxyhemoglobin [HbO2], deoxyhemoglobin [Hb], total hemoglobin [HbT], and oxygen saturation [SO2%], and can assess tissue structure and vascularity. As it is inexpensive, fast, and does not require radiation or intravenous contrast no radiation nor IV contrast, DOT has the potential to become an integral part of NACT to predict responses to NACT. Given the particular significance for pCR in HER2+ and triple negative breast cancer (TNBC), we prospectively evaluated whether a 2 week change in DOT parameters could predict pCR after 5 months of NACT in these subtypes.
Methods
We conducted a prospective cohort study of women with stage II-IIIC breast cancer scheduled to receive NACT with 12 weeks of weekly taxol and four cycles of doxorubicin with cyclophosphamide (AC). We evaluated the associations between residual cancer burden (RCB: 0-3; pCR= RCB 0) and changes in DOT measures. Optical imaging was performed at baseline and before the following: Taxol #3, Taxol #5, AC #1, AC #2, and surgery. Correlation and t-testing were used to evaluate the relationship between 2-week DOT changes and pathologic response.
Results
In a prospectively accrued, longitudinal clinical study with DOT, at least 20 patients with HER2+ or TNBC were enrolled. For patients with these tumor subtypes, there was a significant association between pCR after 5 months of NACT (i.e. RCB 0) and change in the following DOT parameters comparing baseline to after 2 weeks of taxol: HBO (p=0.02), HBT (p=0.02), and S02% (p=0.03). No significant association was seen with HB (p=0.20) or water (p=0.85). When looking specifically at patients with TNBC (n=at least 8 patients), these associations were particulars strong between pCR and the following DOT parameters: HBO (p=0.004), HBT (p=0.009), and S02% (p=0.04). Additional patients are anticipated in this study are anticipated to complete NACT and will be reported at SABCS.
Conclusions
Optical imaging can provide imaging biomarkers to monitor breast cancer response to NACT. Early predictions of pathologic response to NACT can be made with high accuracy as early as two weeks after treatment initiation. These findings are specifically strong in TNBC, a group for whom pCR is predictive of clinical outcome.
Citation Format: Kalinsky K, Lee S, Zhong X, Lim EA, Gunther JE, Hibshoosh H, Kim HK, Accordino M, Crew K, Hielscher A, Hershman DL. Diffuse optical tomography can predict pathologic complete response in patients with HER2+ or triple negative breast cancer undergoing neoadjuvant chemotherapy [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P4-01-06.
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Affiliation(s)
| | - S Lee
- Columbia University Medical Center
| | - X Zhong
- Columbia University Medical Center
| | - EA Lim
- Columbia University Medical Center
| | | | | | - HK Kim
- Columbia University Medical Center
| | | | - K Crew
- Columbia University Medical Center
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Marahatta A, Baek IH, Pyo JS, Bhandary B, Kim HK, Bang JS, Yoon H, Rhew KY, Chai OH, Lee YC. Pharmacokinetics and Bronchopulmonary Disposition of PI3KDelta Inhibitor IC87114 after Intratracheal Administration in a Severe Asthma Model. Indian J Pharm Sci 2017. [DOI: 10.4172/pharmaceutical-sciences.1000317] [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: 11/09/2022] Open
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Kook JH, Kim HK, Kim HJ, Kim KW, Kim TH, Kang KR, Oh DJ, Lee SH. Increased expression of bitter taste receptors in human allergic nasal mucosa and their contribution to the shrinkage of human nasal mucosa. Clin Exp Allergy 2016; 46:584-601. [PMID: 26931803 DOI: 10.1111/cea.12727] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 01/19/2016] [Accepted: 02/07/2016] [Indexed: 12/01/2022]
Abstract
OBJECTIVE Bitter taste receptors (TAS2Rs) are expressed in the extraoral tissues, where they possess various physiological functions. This study is to characterize TAS2Rs expression in normal and allergic nasal mucosa and analyse nasal symptom after challenge with bitter tastes to evaluate their pathophysiological function in normal and allergic nasal mucosa. METHODS The expression levels of TAS2Rs (TAS2R4, 5, 7, 10, 14, 39, and 43) in nasal mucosa were investigated by real-time PCR, Western blot, and immunohistochemistry. The expression levels of TAS2Rs and Ca(2+) imaging in cultured epithelial cells were measured after stimulation with type 2 cytokines (IL-4, IL-5, and IL-13) or bitter tastes. Nasal symptoms in control subjects and allergic rhinitis patients using visual analogue score and acoustic rhinometry were evaluated before and after stimulation with bitter tastes. Vascular diameter of rat nasal septum was measured before and after treatment with bitter tastes. RESULTS TAS2Rs tested here were expressed in nasal mucosa where they were commonly distributed in superficial epithelium, submucosal glands, and endothelium. Their expression levels are increased in allergic nasal mucosa and up-regulated in cultured epithelial cells simulated with type 2 cytokines. After treatment with bitter tastes, intracellular Ca(2+) signalling was increased in cultured epithelial cells, and vascular constriction was found in rat nasal septum. Increased nasal patency was observed in human nasal mucosa without pain or sneezing. CONCLUSION AND CLINICAL RELEVANCE TAS2Rs are constitutively expressed in human nasal mucosa and their expression levels are increased in allergic nasal mucosa, where they could potentially contribute to shrinkage of normal and allergic nasal mucosa.
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Affiliation(s)
- J H Kook
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Hallym University, ChunCheon, South Korea
| | - H K Kim
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, Seoul, South Korea
| | - H J Kim
- College of Medicine, Korea University, Seoul, South Korea
| | - K W Kim
- College of Medicine, Korea University, Seoul, South Korea
| | - T H Kim
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, Seoul, South Korea
| | - K R Kang
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, Seoul, South Korea
| | - D J Oh
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, Seoul, South Korea
| | - S H Lee
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, Seoul, South Korea
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Keum CY, Lee MK, Kim HK, Cheung YJ, Cho HH, Kim JH, Kim MR. Robot-Assisted Laparoscopic Adenomyomectomy: Successful Treatment of Adenomyosis Patients Wishing for Uterus-Sparing Treatment. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.302] [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: 11/28/2022]
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43
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Lee MK, Kim HK, Cheung YJ, Kim MR, Kim JH. Robot-Assisted Laparoscopic Myomectomy, an Alternative to Laparotomy for Numerous Myomas (Over 10). J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.789] [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: 10/20/2022]
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44
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Hwang YB, Cheung YJ, Lee MK, Kim HK, Cho HH, Kim JH, Kim MR. Comparing with Open Surgery, Robot-Assisted Laparoscopic Adenomyomectomy Is a Feasible Option of Uterus-Sparing Surgery. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.798] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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45
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Kim YG, Kim HK, Kang SY, Chung YJ, Cho HH, Kim JH, Kim MR. Successfully Removed Unfavorably Located Myomas By Robot-Assisted Laparoscopic Myomectomy. J Minim Invasive Gynecol 2016; 22:S24-S25. [PMID: 27679155 DOI: 10.1016/j.jmig.2015.08.072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Y G Kim
- Department of Obstetrics & Gynecology, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - H K Kim
- Department of Obstetrics & Gynecology, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - S Y Kang
- Department of Obstetrics & Gynecology, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - Y J Chung
- Department of Obstetrics & Gynecology, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - H H Cho
- Department of Obstetrics & Gynecology, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - J H Kim
- Department of Obstetrics & Gynecology, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - M R Kim
- Department of Obstetrics & Gynecology, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
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46
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Park JH, Kim JE, Gu JY, Yoo HJ, Park SH, Kim YI, Nam-Goong IS, Kim ES, Kim HK. Evaluation of Circulating Markers of Neutrophil Extracellular Trap (NET) Formation as Risk Factors for Diabetic Retinopathy in a Case-Control Association Study. Exp Clin Endocrinol Diabetes 2016; 124:557-561. [PMID: 27420129 DOI: 10.1055/s-0042-101792] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Background: Inflammatory stimuli can induce neutrophils to release nuclear DNA combined with histones into the extracellular space, forming neutrophil extracellular traps. Because inflammation contributes to diabetic retinopathy, it is plausible that neutrophil extracellular trap formation actively occurs in diabetic retinopathy. This case-control study investigated the clinical relevance of circulating levels of neutrophil extracellular trap components as risk factors of diabetic retinopathy, and further evaluated whether glucose induced neutrophil extracellular trap formation in vitro using whole blood from healthy volunteers. Methods: Circulating levels of DNA-histone complexes, cell free double-stranded DNA, and polymorphonuclear neutrophil elastase, considered to be markers of neutrophil extracellular trap formation, were measured in patients with diabetic retinopathy (n=28) and without (n=62) and in 28 healthy controls. Results: Circulating DNA-histone complex and polymorphonuclear neutrophil elastase levels were significantly increased in patients with diabetic retinopathy compared with those without retinopathy. Multivariable logistic regression analysis, adjusted for glycated hemoglobin levels and fasting blood glucose, revealed that DNA-histone complex and polymorphonuclear neutrophil elastase levels were significant independent risk factors of retinopathy. In vitro experiments also showed that glucose significantly increased markers of neutrophil extracellular trap formation in a dose-dependent manner. Conclusions: Markers of neutrophil extracellular trap formation were independent risk factors of diabetic retinopathy. This finding provides a new insight into the potential therapeutic and preventive approaches to dampen neutrophil extracellular trap formation.
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Affiliation(s)
- J-H Park
- Department of Laboratory Medicine and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - J-E Kim
- Department of Laboratory Medicine and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - J-Y Gu
- Department of Laboratory Medicine and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - H J Yoo
- Department of Laboratory Medicine and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - S H Park
- Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
| | - Y I Kim
- Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
| | - I S Nam-Goong
- Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
| | - E S Kim
- Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
| | - H K Kim
- Department of Laboratory Medicine and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
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Abstract
In this study, the hypocholesterolaemic effect of amaranth grain, oil and squalene are examined. In experiment 1, rats are given a semi-purified diet containing 1% (w/w) cholesterol for four weeks and either amaranth grain (AG; 300 g/kg) or amaranth oil (AO; 90 g/kg) substituted in experimental groups. Both AG and AO lowered serum and hepatic cholesterol and triglyceride levels. Faecal excretion of cholesterol and bile acid in the AO group increased, while AG affected only bile acid excretion. In experiment 2, rats were fed the cholesterol diet for four weeks and injected (i.p.) with saline (control), amaranth squalene (AS) or shark liver squalene (SS, 200 mg/kg) for seven days. The hypolipidaemic effects of AS were evident in both serum and liver. In addition, AS markedly increased faecal excretions of cholesterol and bile acid, and slightly inhibited 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase activity. In contrast, none of these effects were observed in the SS group. This preliminary study suggests that the cholesterol-lowering effect of AS may be mediated by increased faecal elimination of steroids through interference with cholesterol absorption, and that different sources of squalene (plant versus animal) may affect cholesterol metabolism differently.
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Affiliation(s)
- D H Shin
- Graduate School of Biotechnology, Korea University, Seoul 136-701, Korea
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48
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Kim HK, Yoon SW, Kim DJ, Koo BS, Noh JY, Kim JH, Choi YG, Na W, Chang KT, Song D, Jeong DG. Detection of Severe Acute Respiratory Syndrome-Like, Middle East Respiratory Syndrome-Like Bat Coronaviruses and Group H Rotavirus in Faeces of Korean Bats. Transbound Emerg Dis 2016; 63:365-72. [PMID: 27213718 PMCID: PMC7169817 DOI: 10.1111/tbed.12515] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Indexed: 12/18/2022]
Abstract
Bat species around the world have recently been recognized as major reservoirs of several zoonotic viruses, such as severe acute respiratory syndrome coronavirus (SARS‐CoV), Middle East respiratory syndrome coronavirus (MERS‐CoV), Nipah virus and Hendra virus. In this study, consensus primer‐based reverse transcriptase polymerase chain reactions (RT‐PCRs) and high‐throughput sequencing were performed to investigate viruses in bat faecal samples collected at 11 natural bat habitat sites from July to December 2015 in Korea. Diverse coronaviruses were first detected in Korean bat faeces, including alphacoronaviruses, SARS‐CoV‐like and MERS‐CoV‐like betacoronaviruses. In addition, we identified a novel bat rotavirus belonging to group H rotavirus which has only been described in human and pigs until now. Therefore, our results suggest the need for continuing surveillance and additional virological studies in domestic bat.
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Affiliation(s)
- H K Kim
- Research Center for Viral Infectious Diseases and Control, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea
| | - S-W Yoon
- Research Center for Viral Infectious Diseases and Control, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea
| | - D-J Kim
- Research Center for Viral Infectious Diseases and Control, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea
| | - B-S Koo
- Research Center for Viral Infectious Diseases and Control, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea
| | - J Y Noh
- Research Center for Viral Infectious Diseases and Control, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea
| | - J H Kim
- Biological and Genetic Resources Assessment Division, National Institute of Biological Resources, Incheon, Korea
| | - Y G Choi
- The Korean Institute of Biospeleology, Daejeon, Korea
| | - W Na
- Research Center for Viral Infectious Diseases and Control, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea.,Department of Pharmacy, College of Pharmacy, Korea University, Sejong, Korea
| | - K-T Chang
- Research Center for Viral Infectious Diseases and Control, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea
| | - D Song
- Department of Pharmacy, College of Pharmacy, Korea University, Sejong, Korea
| | - D G Jeong
- Research Center for Viral Infectious Diseases and Control, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea.,Bio-Analytical Science Division, Korea University of Science and Technology (UST), Daejeon, Korea
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49
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Kim HK, Lee H, Lew BL, Sim WY, Kim YO, Lee SW, Lee S, Cho IH, Kwon JT, Kim HJ. Corrigendum: Association between TAP1 gene polymorphisms and alopecia areata in a Korean population - Genet. Mol. Res. 14 (4): 18820-18827. Genet Mol Res 2016; 15:150170751. [PMID: 26985926 DOI: 10.4238/gmr.150170751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- H K Kim
- Department of Clinical Pharmacology, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
| | - H Lee
- Department of Clinical Pharmacology, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
| | - B L Lew
- Department of Dermatology, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - W Y Sim
- Department of Dermatology, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Y O Kim
- Development of Ginseng and Medical Plants Research Institute, Rural Administration, Eumseong, Republic of Korea
| | - S W Lee
- Development of Ginseng and Medical Plants Research Institute, Rural Administration, Eumseong, Republic of Korea
| | - S Lee
- Department of Integrative Plant Science, Chung-Ang University, Anseong, Republic of Korea
| | - I H Cho
- Department of Convergence Medical Science, Brain Korea 21 Plus Program, and Institute of Korean Medicine, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - J T Kwon
- Department of Clinical Pharmacology, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
| | - H J Kim
- Department of Clinical Pharmacology, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea.,Soonchunhyang Medical Research Institute, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
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Kim HK, Lee H, Lew BL, Sim WY, Kim YO, Lee SW, Lee S, Cho IK, Kwon JT, Kim HJ. Association between TAP1 gene polymorphisms and alopecia areata in a Korean population. Genet Mol Res 2015; 14:18820-7. [PMID: 26782532 DOI: 10.4238/2015.december.28.31] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The transporter 1 ATP-binding cassette sub-family B (MDR/TAP) gene (TAP1) is located in the major histocompatibility complex class II region, and forms a heterodimer that plays a key role in endogenous antigen presentation pathways. Investigation of polymorphisms identified in these loci has revealed an association with several autoimmune disorders. Alopecia areata (AA) is a common autoimmune disease resulting from T cell-induced damage to hair follicles. The present study documents for the first time a comparison between the allelic and genotypic frequencies of TAP1 single nucleotide polymorphisms (SNPs) in patients with AA and those of a control group, using a direct sequencing method. Our results suggest an association between a promoter SNP (rs2071480) and susceptibility to this disease.
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Affiliation(s)
- H K Kim
- Department of Clinical Pharmacology, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
| | - H Lee
- Department of Clinical Pharmacology, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
| | - B L Lew
- Department of Dermatology, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - W Y Sim
- Department of Dermatology, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Y O Kim
- Development of Ginseng and Medical Plants Research Institute, Rural Administration, Eumseong, Republic of Korea
| | - S W Lee
- Development of Ginseng and Medical Plants Research Institute, Rural Administration, Eumseong, Republic of Korea
| | - S Lee
- Department of Integrative Plant Science, Chung-Ang University, Anseong, Republic of Korea
| | - I K Cho
- Department of Convergence Medical Science, Brain Korea 21 Plus Program, Institute of Korean Medicine, College of Oriental Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - J T Kwon
- Department of Clinical Pharmacology, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
| | - H J Kim
- Department of Clinical Pharmacology, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea.,Soonchunhyang Medical Research Institute, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
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