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Kim BJ, Bak SB, Bae SJ, Jin HJ, Park SM, Kim YR, Jung DH, Song CH, Kim YW, Kim SC, Lee WY, Park SD. Protective Effects of Red Ginseng Against Tacrine-Induced Hepatotoxicity: An Integrated Approach with Network Pharmacology and Experimental Validation. Drug Des Devel Ther 2024; 18:549-566. [PMID: 38419811 PMCID: PMC10900653 DOI: 10.2147/dddt.s450305] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 02/21/2024] [Indexed: 03/02/2024] Open
Abstract
Introduction Tacrine, an FDA-approved acetylcholinesterase inhibitor, has shown efficacy in treating Alzheimer's disease, but its clinical use is limited by hepatotoxicity. This study investigates the protective effects of red ginseng against tacrine-induced hepatotoxicity, focusing on oxidative stress. Methods A network depicting the interaction between compounds and targets was constructed for RG. Effect of RG was determined by MTT and FACS analysis with cells stained by rhodamine 123. Proteins were extracted and subjected to immunoblotting for apoptosis-related proteins. Results The outcomes of the network analysis revealed a significant association, with 20 out of 82 identified primary RG targets aligning with those involved in oxidative liver damage including notable interactions within the AMPK pathway. in vitro experiments showed that RG, particularly at 1000μg/mL, mitigated tacrine-induced apoptosis and mitochondrial damage, while activating the LKB1-mediated AMPK pathway and Hippo-Yap signaling. In mice, RG also protected the liver injury induced by tacrine, as similar protective effects to silymarin, a well-known drug for liver toxicity protection. Discussion Our study reveals the potential of RG in mitigating tacrine-induced hepatotoxicity, suggesting the administration of natural products like RG to reduce toxicity in Alzheimer's disease treatment.
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Affiliation(s)
- Bong-Jo Kim
- Department of Korean Medicine, Dongguk University, Gyeongju, 38066, Korea
| | - Seon-Been Bak
- Department of Korean Medicine, Dongguk University, Gyeongju, 38066, Korea
| | - Su-Jin Bae
- Department of Korean Medicine, Dongguk University, Gyeongju, 38066, Korea
- Department of Korean Medicine, Wonkwang University, Iksan, 54538, Korea
| | - Hyo-Jung Jin
- Medical Research Center, College of Korean Medicine, Daegu Haany University, Gyeongsan, 38610, Korea
| | - Sang Mi Park
- Medical Research Center, College of Korean Medicine, Daegu Haany University, Gyeongsan, 38610, Korea
| | - Ye-Rim Kim
- Medical Research Center, College of Korean Medicine, Daegu Haany University, Gyeongsan, 38610, Korea
| | - Dae-Hwa Jung
- Medical Research Center, College of Korean Medicine, Daegu Haany University, Gyeongsan, 38610, Korea
| | - Chang-Hyun Song
- Medical Research Center, College of Korean Medicine, Daegu Haany University, Gyeongsan, 38610, Korea
| | - Young-Woo Kim
- Department of Korean Medicine, Dongguk University, Gyeongju, 38066, Korea
| | - Sang-Chan Kim
- Medical Research Center, College of Korean Medicine, Daegu Haany University, Gyeongsan, 38610, Korea
| | - Won-Yung Lee
- Department of Korean Medicine, Wonkwang University, Iksan, 54538, Korea
- Research Center of Traditional Korean Medicine, Wonkwang University, Iksan, 54538, Korea
| | - Sun-Dong Park
- Department of Korean Medicine, Dongguk University, Gyeongju, 38066, Korea
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Yun SY, Choi YJ, Chung SR, Suh CH, Kim SC, Lee JH, Baek JH. Image findings of anti-neutrophil cytoplasmic antibody-associated vasculitis involving the skull base. Clin Radiol 2023; 78:e568-e573. [PMID: 37164808 DOI: 10.1016/j.crad.2023.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 02/02/2023] [Accepted: 04/05/2023] [Indexed: 05/12/2023]
Abstract
AIM To investigate computed tomography (CT) and magnetic resonance imaging (MRI) features of skull bases involving anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitides (AAV). MATERIALS AND METHODS A retrospective review was undertaken to identify an institutional historical cohort of 17 patients with confirmed AAV who underwent CT or MRI and had skull base involvement between 2002 and 2021. Two radiologists reviewed the extent and features of the lesions, bone changes, and other MRI findings. RESULTS A total of 17 patients (12 men; mean age ± standard deviation, 46.5 ± 17.1 years) were selected. AAV presented as infiltrative lesions with involvement at various sites. Most cases involved the paranasal sinuses (PNS; 88%, 15/17), nasopharynx (88%, 15/17), pterygopalatine fossa (82%, 14/17), and parapharyngeal space (82%, 14/17), frequently accompanied by mucosal irregularity of the PNS and nasopharynx (71%, 12/17). Central skull base and temporal bone involvement were seen in 53% (9/17) and 38% (6/16) of cases, respectively. On T1-weighted imaging (WI) and T2WI MRI, all lesions (15/15) showed predominant signal iso-intensity to grey matter. CONCLUSIONS Although radiological findings of AAV are non-specific and skull base involvement is less common, AAV may be considered if infiltrative lesions predominantly involving the PNS, nasopharynx, pterygopalatine fossa, and parapharyngeal space with combined bone changes of skull base are seen.
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Affiliation(s)
- S Y Yun
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea; Department of Radiology, Inje University Busan Paik Hospital, Busan, Republic of Korea
| | - Y J Choi
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
| | - S R Chung
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - C H Suh
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - S C Kim
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J H Lee
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J H Baek
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Choi NR, Jung D, Kim SC, Park JW, Choi WG, Kim BJ. Analysis of Network Pharmacological Efficacy and Therapeutic Effectiveness in Animal Models for Functional Dyspepsia of Foeniculi fructus. Nutrients 2023; 15:2644. [PMID: 37375548 DOI: 10.3390/nu15122644] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/03/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023] Open
Abstract
For centuries, Foeniculi fructus (F. fructus) has been used as a traditional herbal medicine in China and Europe and is widely used as a natural therapy for digestive disorders, including indigestion, flatulence, and bloating. The mechanism of F. fructus that alleviates functional dyspepsia was analyzed through network pharmacology, and its therapeutic effect on an animal model of functional dyspepsia were investigated. The traditional Chinese medicine systems pharmacology (TCMSP) database was used to investigate the compounds, targets, and associated diseases of F. fructus. Information on the target genes was classified using the UniProtdatabase. Using the Cytoscape 3.9.1 software, a network was constructed, and the Cytoscape string application was employed to examine genes associated with functional dyspepsia. The efficacy of F. fructus on functional dyspepsia was confirmed by treatment with its extract in a mouse model of loperamide-induced functional dyspepsia. Seven compounds targeted twelve functional dyspepsia-associated genes. When compared to the control group, F. fructus exhibited significant suppression of symptoms in a mouse model of functional dyspepsia. The results of our animal studies indicated a close association between the mechanism of action of F. fructus and gastrointestinal motility. Based on animal experimental results, the results showed that F. fructus provided a potential means to treat functional dyspepsia, suggesting that its medical mechanism for functional dyspepsia could be described by the relationship between seven key compounds of F. fructus, including oleic acid, β-sitosterol, and 12 functional dyspepsia-related genes.
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Affiliation(s)
- Na-Ri Choi
- Department of Longevity and Biofunctional Medicine, Pusan National University School of Korean Medicine, Yangsan 50612, Republic of Korea
| | - Daehwa Jung
- Department of Pharmaceutical Engineering, Daegu Hanny University, Gyeongsan 38610, Republic of Korea
| | - Sang-Chan Kim
- College of Oriental Medicine, Daegu Hanny University, Gyeongsan 38610, Republic of Korea
| | - Jae-Woo Park
- Department of Gastroenterology, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Clinical Korean Medicine, Graduate School of Kyung Hee University, Seoul 02447, Republic of Korea
| | - Woo-Gyun Choi
- Department of Longevity and Biofunctional Medicine, Pusan National University School of Korean Medicine, Yangsan 50612, Republic of Korea
| | - Byung-Joo Kim
- Department of Longevity and Biofunctional Medicine, Pusan National University School of Korean Medicine, Yangsan 50612, Republic of Korea
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Choi NR, Lee K, Seo M, Ko SJ, Choi WG, Kim SC, Kim J, Park JW, Kim BJ. Network Pharmacological Analysis and Experimental Validation of the Effect of Smilacis Glabrae Rhixoma on Gastrointestinal Motility Disorder. Plants (Basel) 2023; 12:1509. [PMID: 37050134 PMCID: PMC10096900 DOI: 10.3390/plants12071509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 03/21/2023] [Accepted: 03/29/2023] [Indexed: 06/19/2023]
Abstract
Gastrointestinal motility disorder (GMD) is a disease that causes digestive problems due to inhibition of the movement of the gastrointestinal tract and is one of the diseases that reduce the quality of life of modern people. Smilacis Glabrae Rhixoma (SGR) is a traditional herbal medicine for many diseases and is sometimes prescribed to improve digestion. As a network pharmacological approach, we searched the TCMSP database for SGR, reviewed its constituents and target genes, and analyzed its relevance to gastrointestinal motility disorder. The effects of the SGR extract on the pacemaker activity in interstitial cells of Cajal (ICC) and gastric emptying were investigated. In addition, using the GMD mouse model through acetic acid (AA), we investigated the locomotor effect of SGR on the intestinal transit rate (ITR). As a result of network pharmacology analysis, 56 compounds out of 74 candidate compounds of SGR have targets, the number of targets is 390 targets, and there are 904 combinations. Seventeen compounds of SGR were related to GMD, and as a result of comparing the related genes with the GMD-related genes, 17 genes (active only) corresponded to both. When looking at the relationship network between GMD and SGR, it was confirmed that quercetin, resveratrol, SCN5A, TNF, and FOS were most closely related to GMD. In addition, the SGR extract regulated the pacemaker activity in ICC and recovered the delayed gastric emptying. As a result of feeding the SGR extract to AA-induced GMD mice, it was confirmed that the ITR decreased by AA was restored by the SGR extract. Through network pharmacology, it was confirmed that quercetin, resveratrol, SCN5A, TNF, and FOS were related to GMD in SGR, and these were closely related to intestinal motility. Based on these results, it is suggested that SGR in GMD restores digestion through the recovery of intestinal motility.
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Affiliation(s)
- Na-Ri Choi
- Division of Longevity and Biofunctional Medicine, School of Korean Medicine, Pusan National University, Yangsan 50612, Republic of Korea; (N.-R.C.); (M.S.); (W.-G.C.)
| | - Kangwook Lee
- Department of Clinical Korean Medicine, Graduate School of Kyung Hee University, Seoul 02447, Republic of Korea; (K.L.); (S.-J.K.); (J.K.)
| | - Mujin Seo
- Division of Longevity and Biofunctional Medicine, School of Korean Medicine, Pusan National University, Yangsan 50612, Republic of Korea; (N.-R.C.); (M.S.); (W.-G.C.)
| | - Seok-Jae Ko
- Department of Clinical Korean Medicine, Graduate School of Kyung Hee University, Seoul 02447, Republic of Korea; (K.L.); (S.-J.K.); (J.K.)
- Department of Gastroenterology, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Woo-Gyun Choi
- Division of Longevity and Biofunctional Medicine, School of Korean Medicine, Pusan National University, Yangsan 50612, Republic of Korea; (N.-R.C.); (M.S.); (W.-G.C.)
| | - Sang-Chan Kim
- College of Oriental Medicine, Daegu Haany University, Gyeongsan 38610, Republic of Korea;
| | - Jinsung Kim
- Department of Clinical Korean Medicine, Graduate School of Kyung Hee University, Seoul 02447, Republic of Korea; (K.L.); (S.-J.K.); (J.K.)
- Department of Gastroenterology, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jae-Woo Park
- Department of Clinical Korean Medicine, Graduate School of Kyung Hee University, Seoul 02447, Republic of Korea; (K.L.); (S.-J.K.); (J.K.)
- Department of Gastroenterology, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Byung-Joo Kim
- Division of Longevity and Biofunctional Medicine, School of Korean Medicine, Pusan National University, Yangsan 50612, Republic of Korea; (N.-R.C.); (M.S.); (W.-G.C.)
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Kim J, Kim SC, Kang D, Yon DK, Kim JG. Classification of Alzheimer's disease stage using machine learning for left and right oxygenation difference signals in the prefrontal cortex: a patient-level, single-group, diagnostic interventional trial. Eur Rev Med Pharmacol Sci 2022; 26:7734-7741. [PMID: 36394721 DOI: 10.26355/eurrev_202211_30122] [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: 06/16/2023]
Abstract
OBJECTIVE Recent evidence shows that indicators testing conventional olfactory function have a high degree of similarity to cognitive function tests and the potential to diagnose early-stage Alzheimer's disease (AD). In this study, the efficacy of functional near-infrared spectroscopy time-series data obtained through olfactory stimulation was investigated as an early diagnostic tool for mild cognitive impairment in AD using random forest, a machine learning algorithm. PATIENTS AND METHODS We conducted a patient-level, single-group, diagnostic interventional trial using near-infrared signals measured during olfactory stimulation in the prefrontal cortex of 178 older adults ranging from normal to participants with AD as markers to discriminate AD stages. We first divided the participants into normal older adults, AD mild cognitive impairment, and AD groups using dementia diagnostic criteria such as the Mini-Mental State Examination and Seoul Neuropsychological Screening Battery. We compared the left and right oxygenation difference by calculating the relative oxygenation difference from the change in relative oxygen concentration. RESULTS A total of 168 participants met the eligibility criteria: 70 (41.6%) had normal cognitive function; 42 (25%) mild cognitive impairment; 21 (12.5%) mild AD; and 35 (20.8%) moderate AD. A random forest machine learning model was developed to predict the AD stage, with an area under the receiver operating characteristic curve of 90.7% for mild cognitive impairment and AD, 90.99% for mild cognitive impairment, and 93.34% for AD only. CONCLUSIONS Based on the classification of the oxygenation difference index of the left and right prefrontal cortices during olfactory stimulation through machine learning, we found that it was possible to detect early-stage mild cognitive impairment in AD. Our results highlight the potential for early AD diagnosis using near-infrared signals from the prefrontal cortex obtained upon olfactory stimulation. Moreover, the results showed high similarity to the existing cognitive function tests and high accuracy in AD stage classification.
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Affiliation(s)
- J Kim
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, South Korea.
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Ragupathy S, Priyadharsan A, AlSalhi MS, Devanesan S, Guganathan L, Santhamoorthy M, Kim SC. Effect of doping and loading Parameters on photocatalytic degradation of brilliant green using Sn doped ZnO loaded CSAC. Environ Res 2022; 210:112833. [PMID: 35150712 DOI: 10.1016/j.envres.2022.112833] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/19/2022] [Accepted: 01/24/2022] [Indexed: 06/14/2023]
Abstract
Sn doped ZnO loaded cotton stalk activated carbon (Sn-ZnO/CSAC) was prepared by chemical precipitation method, and the products were characterized. The XRD resultants confirm that the presence of hexagonal wurtzite phase of the bare ZnO. Furthermore, particular particle size gradually decreases (21.49 nm) due to doping and loading. UV-Vis absorption intensity of doped/loaded sample was red-shifted and then PL intensity is reduced. The photocatalytic performances of bare, Sn-doped ZnO and Sn-ZnO/CSAC was estimated by photodegradation of brilliant green (BG) under sunlight. The photodegradation of BG dye in 120 min over Sn-doped ZnO/CSAC is nearly 96.52%, which is considerably improved than bare ZnO (72.60%), respectively.
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Affiliation(s)
- S Ragupathy
- Department of Physics, E.R.K. Arts and Science College, Erumiyampatti, Dharmapuri, 636 905, Tamil Nadu, India.
| | - A Priyadharsan
- Department of Physics, E.R.K. Arts and Science College, Erumiyampatti, Dharmapuri, 636 905, Tamil Nadu, India.
| | - Mohamad S AlSalhi
- Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box-2455, Riyadh, 11451, Saudi Arabia
| | - Sandhanasamy Devanesan
- Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box-2455, Riyadh, 11451, Saudi Arabia
| | - L Guganathan
- Department of Physics, Annamalai University, Annamalainagar, 608002, Tamil Nadu, India
| | - M Santhamoorthy
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38544, Republic of Korea
| | - S C Kim
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38544, Republic of Korea.
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Kim KY, Yun UJ, Yeom SH, Kim SC, Lee HJ, Ahn SC, Park KI, Kim YW. Inhibition of Autophagy Promotes Hemistepsin A-Induced Apoptosis via Reactive Oxygen Species-Mediated AMPK-Dependent Signaling in Human Prostate Cancer Cells. Biomolecules 2021; 11:biom11121806. [PMID: 34944451 PMCID: PMC8699411 DOI: 10.3390/biom11121806] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/29/2021] [Accepted: 11/29/2021] [Indexed: 12/09/2022] Open
Abstract
Chemotherapy is an essential strategy for cancer treatment. On the other hand, consistent exposure to chemotherapeutic drugs induces chemo-resistance in cancer cells through a variety of mechanisms. Therefore, it is important to develop a new drug inhibiting chemo-resistance. Although hemistepsin A (HsA) is known to have anti-tumor effects, the molecular mechanisms of HsA-mediated cell death are unclear. Accordingly, this study examined whether HsA could induce apoptosis in aggressive prostate cancer cells, along with its underlying mechanism. Using HsA on two prostate cancer cell lines, PC-3 and LNCaP cells, the cell analysis and in vivo xenograft model were assayed. In this study, HsA induced apoptosis and autophagy in PC-3 cells. HsA-mediated ROS production attenuated HsA-induced apoptosis and autophagy after treatment with N-acetyl-L-cysteine (NAC), a ROS scavenger. Moreover, autophagy inhibition by 3-MA or CQ is involved in accelerating the apoptosis induced by HsA. Furthermore, we showed the anti-tumor effects of HsA in mice, as assessed by the reduced growth of the xenografted tumors. In conclusion, HsA induced apoptosis and ROS generation, which were blocked by protective autophagy signaling.
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Affiliation(s)
- Kwang-Youn Kim
- Korean Medicine (KM) Application Center, Korea Institute of Oriental Medicine, 70 Cheomdan-ro, Dong-gu, Daegu 41062, Korea;
| | - Un-Jung Yun
- School of Korean Medicine, Dongguk University, Gyeongju 38066, Korea; (U.-J.Y.); (S.-H.Y.)
| | - Seung-Hee Yeom
- School of Korean Medicine, Dongguk University, Gyeongju 38066, Korea; (U.-J.Y.); (S.-H.Y.)
- Medical Research Center, College of Oriental Medicine, Daegu Haany University, Gyeongsan 38610, Korea;
| | - Sang-Chan Kim
- Medical Research Center, College of Oriental Medicine, Daegu Haany University, Gyeongsan 38610, Korea;
| | - Hu-Jang Lee
- College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea;
| | - Soon-Cheol Ahn
- Department of Microbiology & Immunology, Pusan National University School of Medicine, Yangsan 50612, Korea
- Correspondence: (S.-C.A.); (K.-I.P.); (Y.-W.K.)
| | - Kwang-Il Park
- College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea;
- Correspondence: (S.-C.A.); (K.-I.P.); (Y.-W.K.)
| | - Young-Woo Kim
- School of Korean Medicine, Dongguk University, Gyeongju 38066, Korea; (U.-J.Y.); (S.-H.Y.)
- Correspondence: (S.-C.A.); (K.-I.P.); (Y.-W.K.)
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Cho IJ, Kim D, Kim EO, Jegal KH, Kim JK, Park SM, Zhao R, Ki SH, Kim SC, Ku SK. Cystine and Methionine Deficiency Promotes Ferroptosis by Inducing B-Cell Translocation Gene 1. Antioxidants (Basel) 2021; 10:antiox10101543. [PMID: 34679678 PMCID: PMC8532826 DOI: 10.3390/antiox10101543] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 09/23/2021] [Accepted: 09/25/2021] [Indexed: 12/26/2022] Open
Abstract
Ferroptosis is a type of programmed necrosis triggered by iron-dependent lipid peroxidation. We investigated the role of B-cell translocation gene 1 (BTG1) in cystine and methionine deficiency (CST/Met (−))-mediated cell death. CST/Met (−) depleted reduced and oxidized glutathione in hepatocyte-derived cells, increased prostaglandin-endoperoxide synthase 2 expression, and promoted reactive oxygen species accumulation and lipid peroxidation, as well as necrotic cell death. CST/Met (−)-mediated cell death and lipid peroxidation was specifically inhibited by pretreatment with ferroptosis inhibitors. In parallel with cell death, CST/Met (−) blocked global protein translation and increased the expression of genes associated with the integrated stress response. Moreover, CST/Met (−) significantly induced BTG1 expression. Using a BTG1 promoter-harboring reporter gene and siRNA, activating transcription factor 4 (ATF4) was identified as an essential transcription factor for CST/Met (−)-mediated BTG1 induction. Although knockout of BTG1 in human HAP1 cells did not affect the accumulation of reactive oxygen species induced by CST/Met (−), BTG1 knockout significantly decreased the induction of genes associated with the integrated stress response, and reduced lipid peroxidation and cell death in response to CST/Met (−). The results demonstrate that CST/Met (−) induces ferroptosis by activating ATF4-dependent BTG1 induction.
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Affiliation(s)
- Il-Je Cho
- College of Korean Medicine, Daegu Haany University, Gyeongsan 38610, Korea; (I.-J.C.); (D.K.); (E.-O.K.); (K.-H.J.); (J.-K.K.); (S.-M.P.)
| | - Doyeon Kim
- College of Korean Medicine, Daegu Haany University, Gyeongsan 38610, Korea; (I.-J.C.); (D.K.); (E.-O.K.); (K.-H.J.); (J.-K.K.); (S.-M.P.)
| | - Eun-Ok Kim
- College of Korean Medicine, Daegu Haany University, Gyeongsan 38610, Korea; (I.-J.C.); (D.K.); (E.-O.K.); (K.-H.J.); (J.-K.K.); (S.-M.P.)
| | - Kyung-Hwan Jegal
- College of Korean Medicine, Daegu Haany University, Gyeongsan 38610, Korea; (I.-J.C.); (D.K.); (E.-O.K.); (K.-H.J.); (J.-K.K.); (S.-M.P.)
- Digital Health Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Korea
| | - Jae-Kwang Kim
- College of Korean Medicine, Daegu Haany University, Gyeongsan 38610, Korea; (I.-J.C.); (D.K.); (E.-O.K.); (K.-H.J.); (J.-K.K.); (S.-M.P.)
- Korean Medicine-Application Center, Korea Institute of Oriental Medicine, Daegu 41062, Korea
| | - Sang-Mi Park
- College of Korean Medicine, Daegu Haany University, Gyeongsan 38610, Korea; (I.-J.C.); (D.K.); (E.-O.K.); (K.-H.J.); (J.-K.K.); (S.-M.P.)
| | - Rongjie Zhao
- Department of Psychopharmacology, Qiqihar Medical University, Qiqihar 161006, China;
| | - Sung-Hwan Ki
- College of Pharmacy, Chosun University, Gwangju 61452, Korea;
| | - Sang-Chan Kim
- College of Korean Medicine, Daegu Haany University, Gyeongsan 38610, Korea; (I.-J.C.); (D.K.); (E.-O.K.); (K.-H.J.); (J.-K.K.); (S.-M.P.)
- Correspondence: (S.-C.K.); (S.-K.K.); Tel.: +82-53-819-1862 (S.-C.K.); +82-53-819-1549 (S.-K.K.)
| | - Sae-Kwang Ku
- College of Korean Medicine, Daegu Haany University, Gyeongsan 38610, Korea; (I.-J.C.); (D.K.); (E.-O.K.); (K.-H.J.); (J.-K.K.); (S.-M.P.)
- Correspondence: (S.-C.K.); (S.-K.K.); Tel.: +82-53-819-1862 (S.-C.K.); +82-53-819-1549 (S.-K.K.)
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Lee W, Kim SC. ASO Author Reflections: Is the Current Nodal Staging Systems for Pancreatic Cancer Applicable to all Possible Circumstances? Ann Surg Oncol 2021; 29:399-400. [PMID: 34427822 DOI: 10.1245/s10434-021-10693-9] [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] [Received: 08/02/2021] [Accepted: 08/06/2021] [Indexed: 11/18/2022]
Affiliation(s)
- W Lee
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - S C Kim
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea.
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Kim W, Jeong HS, Kim SC, Choi CH, Lee KH. Chronic Alcohol Exposure of Cells Using Controlled Alcohol-Releasing Capillaries. Cells 2021; 10:cells10051120. [PMID: 34066517 PMCID: PMC8148542 DOI: 10.3390/cells10051120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/29/2021] [Accepted: 05/05/2021] [Indexed: 02/06/2023] Open
Abstract
Alcohol is one of the main causes of liver diseases such as fatty liver, alcoholic hepatitis, and chronic hepatitis with liver fibrosis or cirrhosis. To reproduce the conditions of alcohol-induced liver diseases and to identify the disease-causing mechanisms at the cellular level, several methods have been used to expose the cells to ethanol. As ethanol evaporates easily, it is difficult to mimic chronic alcohol exposure conditions at the cellular level. In this study, we developed a glass capillary system containing ethanol, which could steadily release ethanol from the polyethylene tubing and hydrogel portion at both sides of the capillary. The ethanol-containing capillary could release ethanol in the cell culture medium for up to 144 h, and the concentration of ethanol in the cell culture medium could be adjusted by controlling the number of capillaries. A long-term exposure to ethanol by the capillary system led to an increased toxicity of cells and altered the cellular physiologies, such as increasing the lipid accumulation and hepatic transaminase release in cells, as compared to the traditional direct ethanol addition method. Ethanol capillaries showed different gene expression patterns of lipid accumulation- or chronic alcoholism-related genes. Our results suggest that our ethanol-containing capillary system can be used as a valuable tool for studying the mechanism of chronic alcohol-mediated hepatic diseases at the cellular level.
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Affiliation(s)
- Wanil Kim
- Division of Cosmetic Science and Technology, Daegu Haany University, Hanuidae-ro 1, Gyeongsan-si 38610, Gyeongsangbuk-do, Korea; (W.K.); (H.-S.J.)
- Department of Biochemistry and Institute of Health Sciences, School of Medicine, Gyeongsang National University, Jinju 52727, Korea
| | - Hye-Seon Jeong
- Division of Cosmetic Science and Technology, Daegu Haany University, Hanuidae-ro 1, Gyeongsan-si 38610, Gyeongsangbuk-do, Korea; (W.K.); (H.-S.J.)
| | - Sang-Chan Kim
- College of Korean Medicine, Daegu Haany University, Hanuidae-ro 1, Gyeongsan-si 38610, Gyeongsangbuk-do, Korea;
| | - Chang-Hyung Choi
- Division of Cosmetic Science and Technology, Daegu Haany University, Hanuidae-ro 1, Gyeongsan-si 38610, Gyeongsangbuk-do, Korea; (W.K.); (H.-S.J.)
- Correspondence: (C.-H.C.); (K.-H.L.)
| | - Kyung-Ha Lee
- Division of Cosmetic Science and Technology, Daegu Haany University, Hanuidae-ro 1, Gyeongsan-si 38610, Gyeongsangbuk-do, Korea; (W.K.); (H.-S.J.)
- Correspondence: (C.-H.C.); (K.-H.L.)
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Abi B, Albahri T, Al-Kilani S, Allspach D, Alonzi LP, Anastasi A, Anisenkov A, Azfar F, Badgley K, Baeßler S, Bailey I, Baranov VA, Barlas-Yucel E, Barrett T, Barzi E, Basti A, Bedeschi F, Behnke A, Berz M, Bhattacharya M, Binney HP, Bjorkquist R, Bloom P, Bono J, Bottalico E, Bowcock T, Boyden D, Cantatore G, Carey RM, Carroll J, Casey BCK, Cauz D, Ceravolo S, Chakraborty R, Chang SP, Chapelain A, Chappa S, Charity S, Chislett R, Choi J, Chu Z, Chupp TE, Convery ME, Conway A, Corradi G, Corrodi S, Cotrozzi L, Crnkovic JD, Dabagov S, De Lurgio PM, Debevec PT, Di Falco S, Di Meo P, Di Sciascio G, Di Stefano R, Drendel B, Driutti A, Duginov VN, Eads M, Eggert N, Epps A, Esquivel J, Farooq M, Fatemi R, Ferrari C, Fertl M, Fiedler A, Fienberg AT, Fioretti A, Flay D, Foster SB, Friedsam H, Frlež E, Froemming NS, Fry J, Fu C, Gabbanini C, Galati MD, Ganguly S, Garcia A, Gastler DE, George J, Gibbons LK, Gioiosa A, Giovanetti KL, Girotti P, Gohn W, Gorringe T, Grange J, Grant S, Gray F, Haciomeroglu S, Hahn D, Halewood-Leagas T, Hampai D, Han F, Hazen E, Hempstead J, Henry S, Herrod AT, Hertzog DW, Hesketh G, Hibbert A, Hodge Z, Holzbauer JL, Hong KW, Hong R, Iacovacci M, Incagli M, Johnstone C, Johnstone JA, Kammel P, Kargiantoulakis M, Karuza M, Kaspar J, Kawall D, Kelton L, Keshavarzi A, Kessler D, Khaw KS, Khechadoorian Z, Khomutov NV, Kiburg B, Kiburg M, Kim O, Kim SC, Kim YI, King B, Kinnaird N, Korostelev M, Kourbanis I, Kraegeloh E, Krylov VA, Kuchibhotla A, Kuchinskiy NA, Labe KR, LaBounty J, Lancaster M, Lee MJ, Lee S, Leo S, Li B, Li D, Li L, Logashenko I, Lorente Campos A, Lucà A, Lukicov G, Luo G, Lusiani A, Lyon AL, MacCoy B, Madrak R, Makino K, Marignetti F, Mastroianni S, Maxfield S, McEvoy M, Merritt W, Mikhailichenko AA, Miller JP, Miozzi S, Morgan JP, Morse WM, Mott J, Motuk E, Nath A, Newton D, Nguyen H, Oberling M, Osofsky R, Ostiguy JF, Park S, Pauletta G, Piacentino GM, Pilato RN, Pitts KT, Plaster B, Počanić D, Pohlman N, Polly CC, Popovic M, Price J, Quinn B, Raha N, Ramachandran S, Ramberg E, Rider NT, Ritchie JL, Roberts BL, Rubin DL, Santi L, Sathyan D, Schellman H, Schlesier C, Schreckenberger A, Semertzidis YK, Shatunov YM, Shemyakin D, Shenk M, Sim D, Smith MW, Smith A, Soha AK, Sorbara M, Stöckinger D, Stapleton J, Still D, Stoughton C, Stratakis D, Strohman C, Stuttard T, Swanson HE, Sweetmore G, Sweigart DA, Syphers MJ, Tarazona DA, Teubner T, Tewsley-Booth AE, Thomson K, Tishchenko V, Tran NH, Turner W, Valetov E, Vasilkova D, Venanzoni G, Volnykh VP, Walton T, Warren M, Weisskopf A, Welty-Rieger L, Whitley M, Winter P, Wolski A, Wormald M, Wu W, Yoshikawa C. Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm. Phys Rev Lett 2021; 126:141801. [PMID: 33891447 DOI: 10.1103/physrevlett.126.141801] [Citation(s) in RCA: 111] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 03/25/2021] [Indexed: 06/12/2023]
Abstract
We present the first results of the Fermilab National Accelerator Laboratory (FNAL) Muon g-2 Experiment for the positive muon magnetic anomaly a_{μ}≡(g_{μ}-2)/2. The anomaly is determined from the precision measurements of two angular frequencies. Intensity variation of high-energy positrons from muon decays directly encodes the difference frequency ω_{a} between the spin-precession and cyclotron frequencies for polarized muons in a magnetic storage ring. The storage ring magnetic field is measured using nuclear magnetic resonance probes calibrated in terms of the equivalent proton spin precession frequency ω[over ˜]_{p}^{'} in a spherical water sample at 34.7 °C. The ratio ω_{a}/ω[over ˜]_{p}^{'}, together with known fundamental constants, determines a_{μ}(FNAL)=116 592 040(54)×10^{-11} (0.46 ppm). The result is 3.3 standard deviations greater than the standard model prediction and is in excellent agreement with the previous Brookhaven National Laboratory (BNL) E821 measurement. After combination with previous measurements of both μ^{+} and μ^{-}, the new experimental average of a_{μ}(Exp)=116 592 061(41)×10^{-11} (0.35 ppm) increases the tension between experiment and theory to 4.2 standard deviations.
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Affiliation(s)
- B Abi
- University of Oxford, Oxford, United Kingdom
| | - T Albahri
- University of Liverpool, Liverpool, United Kingdom
| | - S Al-Kilani
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - D Allspach
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - L P Alonzi
- University of Washington, Seattle, Washington, USA
| | | | - A Anisenkov
- Budker Institute of Nuclear Physics, Novosibirsk, Russia
| | - F Azfar
- University of Oxford, Oxford, United Kingdom
| | - K Badgley
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - S Baeßler
- University of Virginia, Charlottesville, Virginia, USA
| | - I Bailey
- Lancaster University, Lancaster, United Kingdom
| | - V A Baranov
- Joint Institute for Nuclear Research, Dubna, Russia
| | - E Barlas-Yucel
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - T Barrett
- Cornell University, Ithaca, New York, USA
| | - E Barzi
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - A Basti
- INFN, Sezione di Pisa, Pisa, Italy
- Università di Pisa, Pisa, Italy
| | | | - A Behnke
- Northern Illinois University, DeKalb, Illinois, USA
| | - M Berz
- Michigan State University, East Lansing, Michigan, USA
| | | | - H P Binney
- University of Washington, Seattle, Washington, USA
| | | | - P Bloom
- North Central College, Naperville, Illinois, USA
| | - J Bono
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - E Bottalico
- INFN, Sezione di Pisa, Pisa, Italy
- Università di Pisa, Pisa, Italy
| | - T Bowcock
- University of Liverpool, Liverpool, United Kingdom
| | - D Boyden
- Northern Illinois University, DeKalb, Illinois, USA
| | - G Cantatore
- INFN, Sezione di Trieste, Trieste, Italy
- Università di Trieste, Trieste, Italy
| | - R M Carey
- Boston University, Boston, Massachusetts, USA
| | - J Carroll
- University of Liverpool, Liverpool, United Kingdom
| | - B C K Casey
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - D Cauz
- INFN Gruppo Collegato di Udine, Sezione di Trieste, Udine, Italy
- Università di Udine, Udine, Italy
| | - S Ceravolo
- INFN, Laboratori Nazionali di Frascati, Frascati, Italy
| | | | - S P Chang
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | | | - S Chappa
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - S Charity
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - R Chislett
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - J Choi
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - Z Chu
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - T E Chupp
- University of Michigan, Ann Arbor, Michigan, USA
| | - M E Convery
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - A Conway
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | - G Corradi
- INFN, Laboratori Nazionali di Frascati, Frascati, Italy
| | - S Corrodi
- Argonne National Laboratory, Lemont, Illinois, USA
| | - L Cotrozzi
- INFN, Sezione di Pisa, Pisa, Italy
- Università di Pisa, Pisa, Italy
| | - J D Crnkovic
- Brookhaven National Laboratory, Upton, New York, USA
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- University of Mississippi, University, Mississippi, USA
| | - S Dabagov
- INFN, Laboratori Nazionali di Frascati, Frascati, Italy
| | | | - P T Debevec
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | | | - P Di Meo
- INFN, Sezione di Napoli, Napoli, Italy
| | | | - R Di Stefano
- INFN, Sezione di Napoli, Napoli, Italy
- Università di Cassino e del Lazio Meridionale, Cassino, Italy
| | - B Drendel
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - A Driutti
- INFN, Sezione di Trieste, Trieste, Italy
- Università di Udine, Udine, Italy
- University of Kentucky, Lexington, Kentucky, USA
| | - V N Duginov
- Joint Institute for Nuclear Research, Dubna, Russia
| | - M Eads
- Northern Illinois University, DeKalb, Illinois, USA
| | - N Eggert
- Cornell University, Ithaca, New York, USA
| | - A Epps
- Northern Illinois University, DeKalb, Illinois, USA
| | - J Esquivel
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Farooq
- University of Michigan, Ann Arbor, Michigan, USA
| | - R Fatemi
- University of Kentucky, Lexington, Kentucky, USA
| | - C Ferrari
- INFN, Sezione di Pisa, Pisa, Italy
- Istituto Nazionale di Ottica-Consiglio Nazionale delle Ricerche, Pisa, Italy
| | - M Fertl
- Institute of Physics and Cluster of Excellence PRISMA+, Johannes Gutenberg University Mainz, Mainz, Germany
- University of Washington, Seattle, Washington, USA
| | - A Fiedler
- Northern Illinois University, DeKalb, Illinois, USA
| | - A T Fienberg
- University of Washington, Seattle, Washington, USA
| | - A Fioretti
- INFN, Sezione di Pisa, Pisa, Italy
- Istituto Nazionale di Ottica-Consiglio Nazionale delle Ricerche, Pisa, Italy
| | - D Flay
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | - S B Foster
- Boston University, Boston, Massachusetts, USA
| | - H Friedsam
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - E Frlež
- University of Virginia, Charlottesville, Virginia, USA
| | - N S Froemming
- Northern Illinois University, DeKalb, Illinois, USA
- University of Washington, Seattle, Washington, USA
| | - J Fry
- University of Virginia, Charlottesville, Virginia, USA
| | - C Fu
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - C Gabbanini
- INFN, Sezione di Pisa, Pisa, Italy
- Istituto Nazionale di Ottica-Consiglio Nazionale delle Ricerche, Pisa, Italy
| | - M D Galati
- INFN, Sezione di Pisa, Pisa, Italy
- Università di Pisa, Pisa, Italy
| | - S Ganguly
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - A Garcia
- University of Washington, Seattle, Washington, USA
| | - D E Gastler
- Boston University, Boston, Massachusetts, USA
| | - J George
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | | | - A Gioiosa
- INFN, Sezione di Pisa, Pisa, Italy
- Università del Molise, Campobasso, Italy
| | - K L Giovanetti
- Department of Physics and Astronomy, James Madison University, Harrisonburg, Virginia, USA
| | - P Girotti
- INFN, Sezione di Pisa, Pisa, Italy
- Università di Pisa, Pisa, Italy
| | - W Gohn
- University of Kentucky, Lexington, Kentucky, USA
| | - T Gorringe
- University of Kentucky, Lexington, Kentucky, USA
| | - J Grange
- Argonne National Laboratory, Lemont, Illinois, USA
- University of Michigan, Ann Arbor, Michigan, USA
| | - S Grant
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - F Gray
- Regis University, Denver, Colorado, USA
| | - S Haciomeroglu
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - D Hahn
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | | | - D Hampai
- INFN, Laboratori Nazionali di Frascati, Frascati, Italy
| | - F Han
- University of Kentucky, Lexington, Kentucky, USA
| | - E Hazen
- Boston University, Boston, Massachusetts, USA
| | - J Hempstead
- University of Washington, Seattle, Washington, USA
| | - S Henry
- University of Oxford, Oxford, United Kingdom
| | - A T Herrod
- University of Liverpool, Liverpool, United Kingdom
| | - D W Hertzog
- University of Washington, Seattle, Washington, USA
| | - G Hesketh
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - A Hibbert
- University of Liverpool, Liverpool, United Kingdom
| | - Z Hodge
- University of Washington, Seattle, Washington, USA
| | - J L Holzbauer
- University of Mississippi, University, Mississippi, USA
| | - K W Hong
- University of Virginia, Charlottesville, Virginia, USA
| | - R Hong
- Argonne National Laboratory, Lemont, Illinois, USA
- University of Kentucky, Lexington, Kentucky, USA
| | - M Iacovacci
- INFN, Sezione di Napoli, Napoli, Italy
- Università di Napoli, Napoli, Italy
| | | | - C Johnstone
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - J A Johnstone
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - P Kammel
- University of Washington, Seattle, Washington, USA
| | | | - M Karuza
- INFN, Sezione di Trieste, Trieste, Italy
- University of Rijeka, Rijeka, Croatia
| | - J Kaspar
- University of Washington, Seattle, Washington, USA
| | - D Kawall
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | - L Kelton
- University of Kentucky, Lexington, Kentucky, USA
| | - A Keshavarzi
- Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
| | - D Kessler
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | - K S Khaw
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, China
- University of Washington, Seattle, Washington, USA
| | | | - N V Khomutov
- Joint Institute for Nuclear Research, Dubna, Russia
| | - B Kiburg
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Kiburg
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
- North Central College, Naperville, Illinois, USA
| | - O Kim
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - S C Kim
- Cornell University, Ithaca, New York, USA
| | - Y I Kim
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - B King
- University of Liverpool, Liverpool, United Kingdom
| | - N Kinnaird
- Boston University, Boston, Massachusetts, USA
| | | | - I Kourbanis
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - E Kraegeloh
- University of Michigan, Ann Arbor, Michigan, USA
| | - V A Krylov
- Joint Institute for Nuclear Research, Dubna, Russia
| | - A Kuchibhotla
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | | | - K R Labe
- Cornell University, Ithaca, New York, USA
| | - J LaBounty
- University of Washington, Seattle, Washington, USA
| | - M Lancaster
- Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
| | - M J Lee
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - S Lee
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - S Leo
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - B Li
- Argonne National Laboratory, Lemont, Illinois, USA
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - D Li
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - L Li
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - I Logashenko
- Budker Institute of Nuclear Physics, Novosibirsk, Russia
| | | | - A Lucà
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - G Lukicov
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - G Luo
- Northern Illinois University, DeKalb, Illinois, USA
| | - A Lusiani
- INFN, Sezione di Pisa, Pisa, Italy
- Scuola Normale Superiore, Pisa, Italy
| | - A L Lyon
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - B MacCoy
- University of Washington, Seattle, Washington, USA
| | - R Madrak
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - K Makino
- Michigan State University, East Lansing, Michigan, USA
| | - F Marignetti
- INFN, Sezione di Napoli, Napoli, Italy
- Università di Cassino e del Lazio Meridionale, Cassino, Italy
| | | | - S Maxfield
- University of Liverpool, Liverpool, United Kingdom
| | - M McEvoy
- Northern Illinois University, DeKalb, Illinois, USA
| | - W Merritt
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | | | - J P Miller
- Boston University, Boston, Massachusetts, USA
| | - S Miozzi
- INFN, Sezione di Roma Tor Vergata, Roma, Italy
| | - J P Morgan
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - W M Morse
- Brookhaven National Laboratory, Upton, New York, USA
| | - J Mott
- Boston University, Boston, Massachusetts, USA
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - E Motuk
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - A Nath
- INFN, Sezione di Napoli, Napoli, Italy
- Università di Napoli, Napoli, Italy
| | - D Newton
- University of Liverpool, Liverpool, United Kingdom
| | - H Nguyen
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Oberling
- Argonne National Laboratory, Lemont, Illinois, USA
| | - R Osofsky
- University of Washington, Seattle, Washington, USA
| | - J-F Ostiguy
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - S Park
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - G Pauletta
- INFN Gruppo Collegato di Udine, Sezione di Trieste, Udine, Italy
- Università di Udine, Udine, Italy
| | - G M Piacentino
- INFN, Sezione di Roma Tor Vergata, Roma, Italy
- Università del Molise, Campobasso, Italy
| | - R N Pilato
- INFN, Sezione di Pisa, Pisa, Italy
- Università di Pisa, Pisa, Italy
| | - K T Pitts
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - B Plaster
- University of Kentucky, Lexington, Kentucky, USA
| | - D Počanić
- University of Virginia, Charlottesville, Virginia, USA
| | - N Pohlman
- Northern Illinois University, DeKalb, Illinois, USA
| | - C C Polly
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Popovic
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - J Price
- University of Liverpool, Liverpool, United Kingdom
| | - B Quinn
- University of Mississippi, University, Mississippi, USA
| | - N Raha
- INFN, Sezione di Pisa, Pisa, Italy
| | | | - E Ramberg
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - N T Rider
- Cornell University, Ithaca, New York, USA
| | - J L Ritchie
- Department of Physics, University of Texas at Austin, Austin, Texas, USA
| | - B L Roberts
- Boston University, Boston, Massachusetts, USA
| | - D L Rubin
- Cornell University, Ithaca, New York, USA
| | - L Santi
- INFN Gruppo Collegato di Udine, Sezione di Trieste, Udine, Italy
- Università di Udine, Udine, Italy
| | - D Sathyan
- Boston University, Boston, Massachusetts, USA
| | - H Schellman
- Northwestern University, Evanston, Illinois, USA
| | - C Schlesier
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - A Schreckenberger
- Boston University, Boston, Massachusetts, USA
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Department of Physics, University of Texas at Austin, Austin, Texas, USA
| | - Y K Semertzidis
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Y M Shatunov
- Budker Institute of Nuclear Physics, Novosibirsk, Russia
| | - D Shemyakin
- Budker Institute of Nuclear Physics, Novosibirsk, Russia
| | - M Shenk
- Northern Illinois University, DeKalb, Illinois, USA
| | - D Sim
- University of Liverpool, Liverpool, United Kingdom
| | - M W Smith
- INFN, Sezione di Pisa, Pisa, Italy
- University of Washington, Seattle, Washington, USA
| | - A Smith
- University of Liverpool, Liverpool, United Kingdom
| | - A K Soha
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Sorbara
- INFN, Sezione di Roma Tor Vergata, Roma, Italy
- Università di Roma Tor Vergata, Rome, Italy
| | - D Stöckinger
- Institut für Kern-und Teilchenphysik, Technische Universität Dresden, Dresden, Germany
| | - J Stapleton
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - D Still
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - C Stoughton
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - D Stratakis
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - C Strohman
- Cornell University, Ithaca, New York, USA
| | - T Stuttard
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - H E Swanson
- University of Washington, Seattle, Washington, USA
| | - G Sweetmore
- Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
| | | | - M J Syphers
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
- Northern Illinois University, DeKalb, Illinois, USA
| | - D A Tarazona
- Michigan State University, East Lansing, Michigan, USA
| | - T Teubner
- University of Liverpool, Liverpool, United Kingdom
| | | | - K Thomson
- University of Liverpool, Liverpool, United Kingdom
| | - V Tishchenko
- Brookhaven National Laboratory, Upton, New York, USA
| | - N H Tran
- Boston University, Boston, Massachusetts, USA
| | - W Turner
- University of Liverpool, Liverpool, United Kingdom
| | - E Valetov
- Lancaster University, Lancaster, United Kingdom
- Michigan State University, East Lansing, Michigan, USA
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, China
| | - D Vasilkova
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | | | - V P Volnykh
- Joint Institute for Nuclear Research, Dubna, Russia
| | - T Walton
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Warren
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - A Weisskopf
- Michigan State University, East Lansing, Michigan, USA
| | - L Welty-Rieger
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Whitley
- University of Liverpool, Liverpool, United Kingdom
| | - P Winter
- Argonne National Laboratory, Lemont, Illinois, USA
| | - A Wolski
- University of Liverpool, Liverpool, United Kingdom
| | - M Wormald
- University of Liverpool, Liverpool, United Kingdom
| | - W Wu
- University of Mississippi, University, Mississippi, USA
| | - C Yoshikawa
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
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12
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Kim B, Kwon H, Kim J, Kwon M, Lee J, Kim S, Nam J. The traditional medicine bojungikki-tang increases intestinal motility. Pharmacogn Mag 2021. [DOI: 10.4103/pm.pm_507_20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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13
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Kim YI, Song KB, Lee YJ, Park KM, Hwang DW, Lee JH, Shin SH, Kwon JW, Ro JS, Kim SC. Management of isolated recurrence after surgery for pancreatic adenocarcinoma. Br J Surg 2019; 106:898-909. [PMID: 31162655 DOI: 10.1002/bjs.11144] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 07/10/2018] [Accepted: 01/25/2019] [Indexed: 12/31/2022]
Abstract
BACKGROUND Recurrence of pancreatic cancer after primary pancreatectomy occurs in the vast majority of patients. The role of surgical treatment for recurrent pancreatic cancer is not well established. METHODS Patients who underwent primary pancreatectomy with curative intent from 2000 to 2014 at a single large-volume centre were evaluated retrospectively. CT or PET was used to select patients with an isolated recurrence. The clinicopathological features and survival outcomes were compared according to treatment modalities. RESULTS Of the 1610 patients with pancreatic cancer who underwent resection, 1346 (83·6 per cent) were diagnosed with recurrent pancreatic cancer. Recurrence was locoregional in 366 patients (27·2 per cent), distant multifocal in 251 (18·6 per cent), distant isolated in 188 (14·0 per cent), locoregional plus distant in 153 (11·4 per cent) and peritoneal seeding in 388 (28·8 per cent). Of the 1346 patients with recurrence, 197 (14·6 per cent) had isolated recurrence; of these, 48 (24·4 per cent of all isolated recurrences; 3·6 per cent of all recurrences) underwent resection. Median survival of the 197 patients after diagnosis of isolated recurrence was 14·7 months; it was longer in patients who underwent surgical resection than among those treated non-surgically (23·5 versus 12·0 months; P = 0·014). Multivariable analysis showed that chemotherapy and resection for recurrence were associated with better prognosis. Median survival after recurrence was longest in the 23 patients with isolated pulmonary recurrence (33·3 months). Survival after recurrence was better in patients who underwent resection of isolated recurrence in the remnant pancreas (median 28·0 versus 12·0 months, P = 0·010) and lung (median 36·5 versus 9·5 months; P = 0·010) than in those who did not undergo resection. CONCLUSION Surgical resection may be considered an option for treatment of patients with isolated recurrent pancreatic cancer.
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Affiliation(s)
- Y I Kim
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Centre, Seoul, South Korea
| | - K B Song
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Centre, Seoul, South Korea
| | - Y-J Lee
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Centre, Seoul, South Korea
| | - K-M Park
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Centre, Seoul, South Korea
| | - D W Hwang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Centre, Seoul, South Korea
| | - J H Lee
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Centre, Seoul, South Korea
| | - S H Shin
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Centre, Seoul, South Korea
| | - J W Kwon
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Centre, Seoul, South Korea
| | - J-S Ro
- Clinical Preventive Medicine Centre, Seoul National University Bundang Hospital, Bundang-gu, South Korea
| | - S C Kim
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Centre, Seoul, South Korea
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14
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Garland SM, Pitisuttithum P, Ngan HYS, Cho CH, Lee CY, Chen CA, Yang YC, Chu TY, Twu NF, Samakoses R, Takeuchi Y, Cheung TH, Kim SC, Huang LM, Kim BG, Kim YT, Kim KH, Song YS, Lalwani S, Kang JH, Sakamoto M, Ryu HS, Bhatla N, Yoshikawa H, Ellison MC, Han SR, Moeller E, Murata S, Ritter M, Sawata M, Shields C, Walia A, Perez G, Luxembourg A. Efficacy, Immunogenicity, and Safety of a 9-Valent Human Papillomavirus Vaccine: Subgroup Analysis of Participants From Asian Countries. J Infect Dis 2019; 218:95-108. [PMID: 29767739 PMCID: PMC5989602 DOI: 10.1093/infdis/jiy133] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 03/16/2018] [Indexed: 01/17/2023] Open
Abstract
Background A 9-valent human papillomavirus-6/11/16/18/31/33/45/52/58 (9vHPV) vaccine extends coverage to 5 next most common oncogenic types (31/33/45/52/58) in cervical cancer versus quadrivalent HPV (qHPV) vaccine. We describe efficacy, immunogenicity, and safety in Asian participants (India, Hong Kong, South Korea, Japan, Taiwan, and Thailand) from 2 international studies: a randomized, double-blinded, qHPV vaccine-controlled efficacy study (young women aged 16–26 years; NCT00543543; Study 001); and an immunogenicity study (girls and boys aged 9–15 years; NCT00943722; Study 002). Methods Participants (N = 2519) were vaccinated at day 1 and months 2 and 6. Gynecological samples (Study 001 only) and serum were collected for HPV DNA and antibody assessments, respectively. Injection-site and systemic adverse events (AEs) were monitored. Data were analyzed by country and vaccination group. Results 9vHPV vaccine prevented HPV-31/33/45/52/58–related persistent infection with 90.4%–100% efficacy across included countries. At month 7, ≥97.9% of participants seroconverted for each HPV type. Injection-site AEs occurred in 77.7%–83.1% and 81.9%–87.5% of qHPV and 9vHPV vaccine recipients in Study 001, respectively, and 62.4%–85.7% of girls/boys in Study 002; most were mild to moderate. Conclusions The 9vHPV vaccine is efficacious, immunogenic, and well tolerated in Asian participants. Data support 9vHPV vaccination programs in Asia. Clinical Trials Registration NCT00543543; NCT00943722.
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Affiliation(s)
- S M Garland
- Western Pacific Regional HPV Labnet Reference Laboratory, Department of Infectious Disease and Microbiology, Royal Women's Hospital, Murdoch Children's Research Institute, Royal Children's Hospital and Department of Obstetrics and Gynaecology, University of Melbourne, Parkville, Victoria, Australia
| | | | - H Y S Ngan
- Department of Obstetrics and Gynaecology, the University of Hong Kong, China
| | - C-H Cho
- Department of Obstetrics and Gynecology, Keimyung University School of Medicine, Daegu, South Korea
| | - C-Y Lee
- Department of Gynecology, Chang Gung Memorial Hospital, Chiayi Branch, Taipei
| | - C-A Chen
- Department of Obstetrics and Gynecology, National Taiwan University Hospital, Taipei
| | - Y C Yang
- MacKay Memorial Hospital, Taipei
| | - T-Y Chu
- Tzu Chi Medical Center, Hualien
| | - N-F Twu
- Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - R Samakoses
- Department of Pediatrics, Phramongkutklao Hospital, Bangkok, Thailand
| | | | - T H Cheung
- Department of Obstetric and Gynaecology, Chinese University of Hong Kong, China
| | - S C Kim
- Division of Gynecologic Oncology, Ewha Womans University Mokdong Hospital, School of Medicine Ewha Womans University, Seoul, South Korea
| | - L-M Huang
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
| | - B-G Kim
- Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Y-T Kim
- Department of Obstetrics and Gynecology, University of Ulsan College of Medicine, Asian Medical Center, Seoul, South Korea
| | - K-H Kim
- Department of Pediatrics and Center for Vaccine Evaluation and Study, Ewha Womans University College of Medicine, Seoul, South Korea
| | - Y-S Song
- Obstetrics and Gynecology, College of Medicine, Seoul National University, Seoul, South Korea
| | - S Lalwani
- Bharati Vidyapeeth Deemed University Medical College and Hospital, Pune, India
| | - J-H Kang
- Department of Pediatrics, Seoul St. Mary's Hospital, College of Medicine, the Catholic University of Korea, South Korea
| | - M Sakamoto
- Department of Gynaecology, Sasaki Foundation Kyoundo Hospital and Department of Obstetrics and Gynaecology, School of Medicine, the Jikei University, Tokyo, Japan
| | - H-S Ryu
- Department of Obstetrics and Gynecology, School of Medicine, Ajou University, Suwon, South Korea
| | - N Bhatla
- Department of Obstetrics and Gynaecology, All India Institute of Medical Sciences, New Delhi, India
| | - H Yoshikawa
- Ibaraki Prefectural Central Hospital, Kasama, Ibaraki, Japan
| | | | | | - E Moeller
- Merck & Co., Inc., Kenilworth, New Jersey
| | | | - M Ritter
- Merck & Co., Inc., Kenilworth, New Jersey
| | | | - C Shields
- Merck & Co., Inc., Kenilworth, New Jersey
| | - A Walia
- Merck & Co., Inc., Kenilworth, New Jersey
| | - G Perez
- Merck & Co., Inc., Kenilworth, New Jersey
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Kim SC, Mathews DV, Breeden CP, Higginbotham LB, Ladowski J, Martens G, Stephenson A, Farris AB, Strobert EA, Jenkins J, Walters EM, Larsen CP, Tector M, Tector AJ, Adams AB. Long-term survival of pig-to-rhesus macaque renal xenografts is dependent on CD4 T cell depletion. Am J Transplant 2019; 19:2174-2185. [PMID: 30821922 PMCID: PMC6658347 DOI: 10.1111/ajt.15329] [Citation(s) in RCA: 116] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 01/22/2019] [Accepted: 02/04/2019] [Indexed: 01/25/2023]
Abstract
The shortage of available organs remains the greatest barrier to expanding access to transplant. Despite advances in genetic editing and immunosuppression, survival in experimental models of kidney xenotransplant has generally been limited to <100 days. We found that pretransplant selection of recipients with low titers of anti-pig antibodies significantly improved survival in a pig-to-rhesus macaque kidney transplant model (6 days vs median survival time 235 days). Immunosuppression included transient pan-T cell depletion and an anti-CD154-based maintenance regimen. Selective depletion of CD4+ T cells but not CD8+ T cells resulted in long-term survival (median survival time >400 days vs 6 days). These studies suggested that CD4+ T cells may have a more prominent role in xenograft rejection compared with CD8+ T cells. Although animals that received selective depletion of CD8+ T cells showed signs of early cellular rejection (marked CD4+ infiltrates), animals receiving selective CD4+ depletion exhibited normal biopsy results until late, when signs of chronic antibody rejection were present. In vitro study results suggested that rhesus CD4+ T cells required the presence of SLA class II to mount an effective proliferative response. The combination of low pretransplant anti-pig antibody and CD4 depletion resulted in consistent, long-term xenograft survival.
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Affiliation(s)
- SC Kim
- Emory Transplant Center, Department of Surgery, School of Medicine, Emory University, Atlanta, Georgia
| | - DV Mathews
- Emory Transplant Center, Department of Surgery, School of Medicine, Emory University, Atlanta, Georgia
| | - CP Breeden
- Emory Transplant Center, Department of Surgery, School of Medicine, Emory University, Atlanta, Georgia
| | - LB Higginbotham
- Emory Transplant Center, Department of Surgery, School of Medicine, Emory University, Atlanta, Georgia
| | - J Ladowski
- National Swine Resource and Research Center, University of Missouri, Columbia, Missouri
| | - G Martens
- National Swine Resource and Research Center, University of Missouri, Columbia, Missouri
| | - A Stephenson
- Emory Transplant Center, Department of Surgery, School of Medicine, Emory University, Atlanta, Georgia
| | - AB Farris
- Emory Transplant Center, Department of Surgery, School of Medicine, Emory University, Atlanta, Georgia
| | - EA Strobert
- Yerkes National Primate Research Center, School of Medicine, Emory University, Atlanta, Georgia
| | - J Jenkins
- Yerkes National Primate Research Center, School of Medicine, Emory University, Atlanta, Georgia
| | - EM Walters
- National Swine Resource and Research Center, University of Missouri, Columbia, Missouri
| | - CP Larsen
- Emory Transplant Center, Department of Surgery, School of Medicine, Emory University, Atlanta, Georgia,Yerkes National Primate Research Center, School of Medicine, Emory University, Atlanta, Georgia
| | - M Tector
- Comprehensive Transplant Institute, University of Alabama Birmingham School of Medicine, Birmingham, Alabama
| | - AJ Tector
- Comprehensive Transplant Institute, University of Alabama Birmingham School of Medicine, Birmingham, Alabama
| | - AB Adams
- Emory Transplant Center, Department of Surgery, School of Medicine, Emory University, Atlanta, Georgia,Yerkes National Primate Research Center, School of Medicine, Emory University, Atlanta, Georgia
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16
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Kim SC, Sun HY, Kim HS, Ryoo I. Long-Term Ultrasound Follow-Up of Incidentally Detected Thyroglossal Duct Cysts in Adults. AJNR Am J Neuroradiol 2018; 39:2356-2359. [PMID: 30467213 DOI: 10.3174/ajnr.a5882] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 09/29/2018] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND PURPOSE There has been no previous study that used ultrasonography for longitudinal changes of thyroglossal duct cysts, to our knowledge. We assessed the prevalence and interval changes in incidentally detected thyroglossal duct cysts in adults. MATERIALS AND METHODS From January 2010 to December 2016, we identified 796 ultrasonography radiologic reports from 513 subjects that contained the words "thyroglossal" or "TGDC" among 54,369 participants. Of 513 subjects, 172 (M/F = 103:69, mean age, 53 ± 11 years) who underwent ≥2 sonography studies were enrolled. Two reviewers determined ultrasonography features, including maximal diameter, location, internal echogenicity, wall thickness, and the presence of posterior enhancement, internal septa, and solid components. RESULTS The mean follow-up time of total 172 lesions was 2.01 ± 1.13 years. Thyroglossal duct cysts ranged from 2 to 32 mm (mean, 8.77 ± 3.83 mm) on the initial ultrasonography examination. On follow-up ultrasonography studies, 14 lesions (8.2%) increased by >2 mm, while most thyroglossal duct cysts (133 lesions, 77.3%) remained stable in size. During the follow-up period, 31 lesions (18.0%) showed interval changes in ultrasonography features. There was no significant relationship between the presence of ultrasonography feature changes and size changes (P = .12). CONCLUSIONS On ultrasonography, 0.9% of adults had incidental thyroglossal duct cysts. Most did not increase in size with time despite changes in various ultrasonography features. Therefore, we recommend performing an observation at long intervals of 2-3 years for asymptomatic thyroglossal duct cysts, and we suggest that fine-needle aspiration can be suspended unless suspicious findings of malignancy are detected.
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Affiliation(s)
- S C Kim
- From the Department of Radiology (S.C.K., H.Y.S., H.S.K.), Seoul National University Hospital Healthcare System Gangnam Center, Seoul National University College of Medicine, Seoul, South Korea
| | - H Y Sun
- From the Department of Radiology (S.C.K., H.Y.S., H.S.K.), Seoul National University Hospital Healthcare System Gangnam Center, Seoul National University College of Medicine, Seoul, South Korea
| | - H S Kim
- From the Department of Radiology (S.C.K., H.Y.S., H.S.K.), Seoul National University Hospital Healthcare System Gangnam Center, Seoul National University College of Medicine, Seoul, South Korea
| | - I Ryoo
- From the Department of Radiology (S.C.K., H.Y.S., H.S.K.), Seoul National University Hospital Healthcare System Gangnam Center, Seoul National University College of Medicine, Seoul, South Korea
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Lee SB, Kim DH, Kim T, Lee SH, Jeong JH, Kim SC, Park YJ, Lim D, Kang C. Anion gap and base deficit are predictors of mortality in acute pesticide poisoning. Hum Exp Toxicol 2018; 38:185-192. [PMID: 30001645 DOI: 10.1177/0960327118788146] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND: Acute pesticide poisoning has long been a serious problem as a method of suicide worldwide. This poisoning is a highly fatal condition that requires a rapid and precise diagnosis for adequate treatment. However, various studies on mortality predictor factors have been insufficient for whole pesticide treatments. We hypothesized that the initial plasma anion gap (AG) and base deficit (BD) are reliable prognostic factors. METHODS: A retrospective study analyzed 561 patients with a diagnosis of acute pesticide poisoning between January 1, 2014 and June 30, 2017. The initial AG and BD values were divided into quartiles according to the number of patients. Survival at 30 days from admission was estimated using the Kaplan-Meier survival analysis. Receiver-operator characteristic (ROC) curves were drawn, and the areas under the curve for AG and BD for mortality were calculated. RESULTS: Fifty-eight (10.3%) of 561 patients died within 30 days. The highest AG quartile (>22 mEq/L) was associated with an increased risk of 30-day hospital mortality. Compared to patients with an AG less than 14.7 mEq/L, these patients had a 4.18-fold higher risk of 30-day hospital mortality and the highest BD quartile (>7.9 mEq/L) was associated with an increased risk of 30-day hospital mortality. Compared to patients with a BD less than 1.4 mEq/L, these patients had 2.23-fold higher risk of 30-day hospital mortality. The areas under the ROC for AG and BD curve were 0.699 and 0.744, respectively. CONCLUSIONS: Initial high AG and BD values could predict mortality and require precise intensive care.
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Affiliation(s)
- S B Lee
- 1 Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea.,2 Gyeongsang Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - D H Kim
- 1 Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea.,2 Gyeongsang Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - T Kim
- 1 Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea.,2 Gyeongsang Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - S H Lee
- 1 Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea.,2 Gyeongsang Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - J H Jeong
- 1 Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea.,2 Gyeongsang Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - S C Kim
- 1 Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea.,3 Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea
| | - Y J Park
- 1 Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea.,3 Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea
| | - D Lim
- 1 Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea.,3 Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea
| | - C Kang
- 1 Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea.,2 Gyeongsang Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
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Abstract
Objectives Laser-engineered net shaping (LENS) of coated surfaces can overcome the limitations of conventional coating technologies. We compared the in vitro biological response with a titanium plasma spray (TPS)-coated titanium alloy (Ti6Al4V) surface with that of a Ti6Al4V surface coated with titanium using direct metal fabrication (DMF) with 3D printing technologies. Methods The in vitro ability of human osteoblasts to adhere to TPS-coated Ti6Al4V was compared with DMF-coating. Scanning electron microscopy (SEM) was used to assess the structure and morphology of the surfaces. Biological and morphological responses to human osteoblast cell lines were then examined by measuring cell proliferation, alkaline phosphatase activity, actin filaments, and RUNX2 gene expression. Results Morphological assessment of the cells after six hours of incubation using SEM showed that the TPS- and DMF-coated surfaces were largely covered with lamellipodia from the osteoblasts. Cell adhesion appeared similar in both groups. The differences in the rates of cell proliferation and alkaline phosphatase activities were not statistically significant. Conclusions The DMF coating applied using metal 3D printing is similar to the TPS coating, which is the most common coating process used for bone ingrowth. The DMF method provided an acceptable surface structure and a viable biological surface. Moreover, this method is automatable and less complex than plasma spraying. Cite this article: T. Shin, D. Lim, Y. S. Kim, S. C. Kim, W. L. Jo, Y. W. Lim. The biological response to laser-aided direct metal-coated Titanium alloy (Ti6Al4V). Bone Joint Res 2018;7:357–361. DOI: 10.1302/2046-3758.75.BJR-2017-0222.R1.
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Affiliation(s)
- T Shin
- Department of Mechanical Engineering, Sejoing University; Corentec, Central R&D Center, Seoul, South Korea
| | - D Lim
- Department of Mechanical Engineering, Sejoing University, Seoul, South Korea
| | - Y S Kim
- Department of Orthopaedic Surgery, Seoul St. Mary's Hospital, School of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - S C Kim
- Department of Orthopaedic Surgery, Seoul St. Mary's Hospital, School of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - W L Jo
- Department of Orthopaedic Surgery, Seoul St. Mary's Hospital, School of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Y W Lim
- Department of Orthopaedic Surgery, Seoul St. Mary's Hospital, School of Medicine, The Catholic University of Korea, Seoul, South Korea
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19
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Prost-Squarcioni C, Caux F, Schmidt E, Jonkman MF, Vassileva S, Kim SC, Iranzo P, Daneshpazhooh M, Terra J, Bauer J, Fairley J, Hall R, Hertl M, Lehman JS, Marinovic B, Patsatsi A, Zillikens D, Werth V, Woodley DT, Murrell DF. International Bullous Diseases Group: consensus on diagnostic criteria for epidermolysis bullosa acquisita. Br J Dermatol 2018; 179:30-41. [PMID: 29165796 DOI: 10.1111/bjd.16138] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/12/2017] [Indexed: 01/28/2023]
Abstract
BACKGROUND Epidermolysis bullosa acquisita (EBA) is a complex autoimmune bullous disease disease with variable clinical presentations and multiple possible diagnostic tests, making an international consensus on the diagnosis of EBA essential. OBJECTIVES To obtain an international consensus on the clinical and diagnostic criteria for EBA. METHODS The International Bullous Diseases Group (IBDG) met three times to discuss the clinical and diagnostic criteria for EBA. For the final voting exercise, 22 experts from 14 different countries voted on 50 different items. When > 30% disagreed with a proposal, a discussion was held and re-voting carried out. RESULTS In total, 48 of 50 proposals achieved consensus after discussion. This included nine diagnostic criteria, which are summarized in a flow chart. The IBDG was unable to determine one procedure that would be applicable worldwide. A limitation of the study is that differential diagnosis of bullous systemic lupus erythematosus has not been addressed. CONCLUSIONS This first international consensus conference established generally agreed-upon clinical and laboratory criteria defining the clinical classification of and diagnostic testing for EBA. Holding these voting exercises in person with the possibility of discussion prior to voting has advantages in reaching consensus over Delphi exercises with remote voting.
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Affiliation(s)
- C Prost-Squarcioni
- Department of Dermatology and Referral Center for Autoimmune Bullous Diseases, APHP, Avicenne Hospital, Bobigny, France.,Department of Histology, UFR Léonard de Vinci, University Paris 13, Bobigny, France.,Department of Pathology, APHP, Avicenne Hospital, Bobigny, France
| | - F Caux
- Department of Dermatology and Referral Center for Autoimmune Bullous Diseases, APHP, Avicenne Hospital, Bobigny, France
| | - E Schmidt
- Department of Dermatology, University of Lübeck, Lübeck, Germany
| | - M F Jonkman
- Department of Dermatology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - S Vassileva
- Department of Dermatology, Medical University of Sofia, Sofia, Bulgaria
| | - S C Kim
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Gangnam Severance Hospital, Seoul, Korea
| | - P Iranzo
- Department of Dermatology, Hospital Clinic de Barcelona, Facultat de Medicina, Universitat de Barcelona, Barcelona, Spain
| | - M Daneshpazhooh
- Autoimmune Bullous Diseases Research Center, Department of Dermatology, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - J Terra
- Department of Dermatology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - J Bauer
- Division of Molecular Dermatology, Department of Dermatology, Paracelsus Medical University Salzburg, Salzburg, Austria
| | - J Fairley
- Department of Dermatology, University of Iowa and Department of Veterans Affairs Medical Center, Iowa City, IA, U.S.A
| | - R Hall
- Department of Dermatology, Duke Medical Center, Durham, NC, U.S.A
| | - M Hertl
- Department of Dermatology, University Hospital, Marburg, Germany
| | - J S Lehman
- Department of Dermatology, Mayo Clinic, Rochester, MN, U.S.A
| | - B Marinovic
- Department of Dermatology and Venereology, University Hospital Center Zagreb, University of Zagreb School of Medicine, Zagreb, Croatia
| | - A Patsatsi
- Second University Dermatology Department, Aristotle University School of Medicine, Papageorgiou General Hospital, Thessaloniki, Greece
| | - D Zillikens
- Department of Dermatology, University of Lübeck, Lübeck, Germany
| | | | - V Werth
- Department of Dermatology, University of Pennsylvania and Philadelphia Department of Veterans Affairs Medical Center, Philadelphia, PA, U.S.A
| | - D T Woodley
- Department of Dermatology, Keck School of Medicine, University of Southern California, Los Angeles, CA, U.S.A
| | - D F Murrell
- Department of Dermatology at St George Hospital, University of New South Wales, Sydney, Australia
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Ghassemi Nejad J, Sung KI, Lee BH, Peng JL, Kim JY, Chemere B, Oh SM, Kim MJ, Kim SC, Kim BW. 3 Comparison of hair cortisol levels and body temperature response prior to and post heat stress and water deprivation in Holstein dairy cows. J Anim Sci 2018. [DOI: 10.1093/jas/sky073.002] [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: 11/15/2022] Open
Affiliation(s)
- J Ghassemi Nejad
- Institute of Animal Resources, Kangwon National University, Chuncheon, Korea, Republic of (South)
| | - K I Sung
- College of Animal Life Sciences, Kangwon National University, Chuncheon, Korea, Republic of (South)
| | - B H Lee
- College of Animal Life Sciences, Kangwon National University, Chuncheon, Korea, Republic of (South)
| | - J L Peng
- College of Animal Life Sciences, Kangwon National University, Chuncheon, Korea, Republic of (South)
| | - J Y Kim
- College of Animal Life Sciences, Kangwon National University, Chuncheon, Korea, Republic of (South)
| | - B Chemere
- College of Animal Life Sciences, Kangwon National University, Chuncheon, Korea, Republic of (South)
| | - S M Oh
- College of Animal Life Sciences, Kangwon National University, Chuncheon, Korea, Republic of (South)
| | - M J Kim
- Institute of Animal Resources, Kangwon National University, Chuncheon, Korea, Republic of (South)
| | - S C Kim
- College of Animal Life Sciences, Kangwon National University, Chuncheon, Korea, Republic of (South)
| | - B W Kim
- College of Animal Life Sciences, Kangwon National University, Chuncheon, Korea, Republic of (South)
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Abstract
Poly(D,L-lactic-co-glycolic acid) has been extensively used as a controlled release carrier for drug delivery due to its good biocompatibility, biodegradability, and mechanical strength. In this study, porous PLGA microspheres were fabricated by an emulsion-solvent evaporation technique using poly ethylene glycol (PEG) as an extractable porogen and loaded with protein (lysozyme) by suspending them in protein solution. For controlled release of protein, porous microspheres containing lysozyme were treated with water-miscible solvents in aqueous phase for production of pore-closed microspheres. The surface morphology of microspheres were investigated using scanning electron microscopy (SEM) for confirmation of its porous microstructure structure. Protein property after release was observed by enzymatic activity assay. The pore-closing process resulted in nonporous microspheres which exhibited sustained release patterns over an extended period.
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Bermas BL, Kim SC, Huybrechts K, Mogun H, Hernandez-Diaz S, Bateman BT, Desai RJ. Trends in use of hydroxychloroquine during pregnancy in systemic lupus erythematosus patients from 2001 to 2015. Lupus 2018; 27:1012-1017. [DOI: 10.1177/0961203317749046] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- B L Bermas
- Division of Rheumatology, Immunology and Allergy, Brigham and Women’s Hospital, Boston, MA, USA
| | - S C Kim
- Division of Rheumatology, Immunology and Allergy, Brigham and Women’s Hospital, Boston, MA, USA
- Division of Pharmacoepidemiology and Pharmacoeconomics, Brigham and Women’s Hospital, Boston, MA, USA
| | - K Huybrechts
- Division of Pharmacoepidemiology and Pharmacoeconomics, Brigham and Women’s Hospital, Boston, MA, USA
| | - H Mogun
- Division of Rheumatology, Immunology and Allergy, Brigham and Women’s Hospital, Boston, MA, USA
| | - S Hernandez-Diaz
- Department of Epidemiology, Harvard Chan School of Public Health, Boston, MA, USA
| | - B T Bateman
- Division of Pharmacoepidemiology and Pharmacoeconomics, Brigham and Women’s Hospital, Boston, MA, USA
| | - R J Desai
- Division of Pharmacoepidemiology and Pharmacoeconomics, Brigham and Women’s Hospital, Boston, MA, USA
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Mathews DV, Wakwe WC, Kim SC, Lowe MC, Breeden C, Roberts ME, Farris AB, Strobert EA, Jenkins JB, Larsen CP, Ford ML, Townsend R, Adams AB. Belatacept-Resistant Rejection Is Associated With CD28 + Memory CD8 T Cells. Am J Transplant 2017; 17:2285-2299. [PMID: 28502128 PMCID: PMC5573634 DOI: 10.1111/ajt.14349] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [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: 01/23/2017] [Revised: 04/21/2017] [Accepted: 04/21/2017] [Indexed: 01/25/2023]
Abstract
Recently, newer therapies have been designed to more specifically target rejection in an effort to improve efficacy and limit unwanted toxicity. Belatacept, a CD28-CD80/86 specific reagent, is associated with superior patient survival and graft function compared with traditional therapy, but its adoption as a mainstay immunosuppressive therapy has been tempered by increased rejection rates. It is essential that the underlying mechanisms associated with this rejection be elucidated before belatacept is more widely used. To that end, we designed a study in a nonhuman primate kidney transplant model where animals were treated with either a belatacept- or a tacrolimus-based immunosuppressive regimen. Interestingly, we found that elevated pretransplant frequencies of CD28+ CD8+ TEMRA cells are associated with rejection on belatacept but not tacrolimus treatment. Further analysis showed that the CD28+ CD8+ TEMRA cells rapidly lose CD28 expression after transplant in those animals that go on to reject with the allograft infiltrate being predominantly CD28- . These data suggest that CD28+ memory T cells may be resistant to belatacept, capable of further differentiation including loss of CD28 expression while maintaining effector function. The unique signaling requirements of CD28+ memory T cells provide opportunities for the development of targeted therapies, which may synergize with belatacept to prevent costimulation-independent rejection.
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Affiliation(s)
| | - WC Wakwe
- Emory Transplant Center, Atlanta, GA
| | - SC Kim
- Emory Transplant Center, Atlanta, GA
| | - MC Lowe
- Emory Transplant Center, Atlanta, GA
| | - C Breeden
- Emory Transplant Center, Atlanta, GA
| | | | - AB Farris
- Emory Transplant Center, Atlanta, GA
| | | | - JB Jenkins
- Yerkes National Primate Center, Atlanta, GA
| | - CP Larsen
- Emory Transplant Center, Atlanta, GA,Yerkes National Primate Center, Atlanta, GA
| | - ML Ford
- Emory Transplant Center, Atlanta, GA
| | | | - AB Adams
- Emory Transplant Center, Atlanta, GA,Yerkes National Primate Center, Atlanta, GA
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Kim SC, Choudhry N, Franklin JM, Bykov K, Eikermann M, Lii J, Fischer MA, Bateman BT. Patterns and predictors of persistent opioid use following hip or knee arthroplasty. Osteoarthritis Cartilage 2017; 25:1399-1406. [PMID: 28433815 PMCID: PMC5565694 DOI: 10.1016/j.joca.2017.04.002] [Citation(s) in RCA: 128] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 04/06/2017] [Accepted: 04/11/2017] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The relationship between arthroplasty and long-term opioid use in patients with knee or hip osteoarthritis is not well studied. We examined the prevalence, patterns and predictors of persistent opioid use after hip or knee arthroplasty. METHOD Using claims data (2004-2013) from a US commercial health plan, we identified adults who underwent hip or knee arthroplasty and filled ≥1 opioid prescription within 30 days after the surgery. We defined persistent opioid users as patients who filled ≥1 opioid prescription every month during the 1-year postoperative period based on group-based trajectory models. Multivariable logistic regression was used to determine preoperative predictors of persistent opioid use after surgery. RESULTS We identified 57,545 patients who underwent hip or knee arthroplasty. The mean ± SD age was 61.5 ± 7.8 years and 87.1% had any opioid use preoperatively. Overall, 7.6% persistently used opioids after the surgery. Among patients who used opioids in 80% of the time for ≥4 months preoperatively (n = 3023), 72.1% became persistent users. In multivariable analysis, knee arthroplasty vs hip, a longer hospitalization stay, discharge to a rehabilitation facility, preoperative opioid use (e.g., a longer duration and greater dosage and frequency), a higher comorbidity score, back pain, rheumatoid arthritis, fibromyalgia, migraine and smoking, and benzodiazepine use at baseline were strong predictors for persistent opioid use (C-statistic = 0.917). CONCLUSION Over 7% of patients persistently used opioids in the year after hip or knee arthroplasty. Given the adverse health effects of persistent opioid use, strategies need to be developed to prevent persistent opioid use after this common surgery.
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Affiliation(s)
- S C Kim
- Division of Pharmacoepidemiology and Pharmacoeconomics, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
| | - N Choudhry
- Division of Pharmacoepidemiology and Pharmacoeconomics, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - J M Franklin
- Division of Pharmacoepidemiology and Pharmacoeconomics, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - K Bykov
- Division of Pharmacoepidemiology and Pharmacoeconomics, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - M Eikermann
- Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - J Lii
- Division of Pharmacoepidemiology and Pharmacoeconomics, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - M A Fischer
- Division of Pharmacoepidemiology and Pharmacoeconomics, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - B T Bateman
- Division of Pharmacoepidemiology and Pharmacoeconomics, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
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Haliburton JR, Kim SC, Clark IC, Sperling RA, Weitz DA, Abate AR. Efficient extraction of oil from droplet microfluidic emulsions. Biomicrofluidics 2017; 11:034111. [PMID: 28611871 PMCID: PMC5438281 DOI: 10.1063/1.4984035] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 05/10/2017] [Indexed: 06/07/2023]
Abstract
Droplet microfluidic techniques can perform large numbers of single molecule and cell reactions but often require controlled, periodic flow to merge, split, and sort droplets. Here, we describe a simple method to convert aperiodic flows into periodic ones. Using an oil extraction module, we efficiently remove oil from emulsions to readjust the droplet volume fraction, velocity, and packing, producing periodic flows. The extractor acts as a universal adaptor to connect microfluidic modules that do not operate under identical flow conditions, such as droplet generators, incubators, and merger devices.
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Affiliation(s)
| | - S C Kim
- Department of Bioengineering and Therapeutic Sciences, California Institute for Quantitative Biosciences (QB3), University of California, San Francisco, California 94158, USA
| | - I C Clark
- Department of Bioengineering and Therapeutic Sciences, California Institute for Quantitative Biosciences (QB3), University of California, San Francisco, California 94158, USA
| | - R A Sperling
- Department of Physics and School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA
| | - D A Weitz
- Department of Physics and School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA
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Lee SB, Kang C, Kim DH, Kim T, Lee SH, Jeong JH, Kim SC, Rhee DY, Lim D. Base deficit is a predictor of mortality in organophosphate insecticide poisoning. Hum Exp Toxicol 2017; 37:118-124. [PMID: 29233034 DOI: 10.1177/0960327117694073] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Organophosphate insecticide (OPI) self-poisoning is a major medical problem in many countries. Several studies have demonstrated that the base deficit (BD) is a prognostic tool that is correlated with the severity of injury and predicted mortality, particularly in trauma patients. Here, we aimed to investigate the prognostic significance of BD in OPI poisoning. METHODS This retrospective observational study was conducted between January 1, 2006, and January 31, 2015, at a single emergency department (ED). The BD values were divided into quartiles according to the number of patients: 3 mEq/L or less, 3-5.9 mEq/L, 6-9.9 mEq/L, and 10 mEq/L or greater. Survival at 30 days from ED admission was estimated using the Kaplan-Meier survival analysis. RESULTS Among 154 patients, 31 died, yielding a mortality of 20.1%. The highest BD quartile (≥ 10 mEq/L) and the 6-9.9 mEq/L group were associated with an increased risk of 30-day mortality. Patients with a BD of 10 mEq/L or greater had a 5.85-fold higher risk of 30-day mortality and patients with a BD of 6-9.9 mEq/L had a 5.40-fold higher risk of 30-day mortality compared to patients with a BD of 3 mEq/L or less. The area under the curves of the BD and the Acute Physiology and Chronic Health Evaluation II score for mortality were 0.748 (95% confidence interval (CI), 0.660-0.835) and 0.852 (95% CI, 0.789-0.915), respectively. CONCLUSIONS This study showed that the BD is a predictor of 30-day mortality in patients with OPI poisoning.
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Affiliation(s)
- S B Lee
- 1 Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - C Kang
- 1 Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea.,2 Gyeongsang Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - D H Kim
- 1 Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea.,2 Gyeongsang Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - T Kim
- 1 Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - S H Lee
- 1 Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea.,2 Gyeongsang Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - J H Jeong
- 1 Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea.,2 Gyeongsang Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - S C Kim
- 2 Gyeongsang Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea.,3 Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju and Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea
| | - D Y Rhee
- 3 Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju and Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea
| | - D Lim
- 3 Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju and Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea
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Feldman CH, Liu J, Feldman S, Solomon DH, Kim SC. Risk of high-grade cervical dysplasia and cervical cancer in women with systemic lupus erythematosus receiving immunosuppressive drugs. Lupus 2016; 26:682-689. [PMID: 27799438 DOI: 10.1177/0961203316672928] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Objective Prior studies suggest an increased risk of cervical cancer among women with systemic lupus erythematosus. However, the relationship with immunosuppressive drugs is not well studied in US nationwide cohorts. We compared the risk of high-grade cervical dysplasia and cervical cancer among women with systemic lupus erythematosus who started immunosuppressive drugs versus hydroxychloroquine. Methods We identified systemic lupus erythematosus patients initiating immunosuppressive drugs or hydroxychloroquine using claims data from two US commercial health plans and Medicaid (2000-2012). We used a validated claims-based algorithm to identify high-grade cervical dysplasia or cervical cancer. To account for potential confounders, including demographic factors, comorbidities, medication use, HPV vaccination status, and health care utilization, immunosuppressive drugs and hydroxychloroquine initiators were 1:1 matched on the propensity score. We used inverse variance-weighted, fixed effect models to pool hazard ratios from the propensity score-matched Medicaid and commercial cohorts. Results We included 2451 matched pairs of immunosuppressive drugs and hydroxychloroquine new users in the commercial cohort and 7690 matched pairs in Medicaid. In the commercial cohort, there were 14 cases of cervical dysplasia or cervical cancer among immunosuppressive drugs users and five cases among hydroxychloroquine users (hazard ratio 2.47, 95% CI 0.89-6.85, hydroxychloroquine = ref). In Medicaid, there were 46 cases among immunosuppressive drugs users and 29 cases in hydroxychloroquine users (hazard ratio 1.24, 95% CI 0.78-1.98, hydroxychloroquine = ref). The pooled hazard ratio of immunosuppressive drugs was 1.40 (95% CI 0.92-2.12). Conclusion Among women with systemic lupus erythematosus, immunosuppressive drugs may be associated with a greater, albeit not statistically significant, risk of high-grade cervical dysplasia and cervical cancer compared to patients receiving hydroxychloroquine alone.
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Affiliation(s)
- C H Feldman
- 1 Brigham and Women's Hospital, Division of Rheumatology, Immunology and Allergy, Boston, USA
| | - J Liu
- 2 Brigham and Women's Hospital, Division of Pharmacoepidemiology and Pharmacoeconomics, Boston, USA
| | - S Feldman
- 3 Brigham and Women's Hospital, Department of Obstetrics, Gynecology and Reproductive Biology, Boston, USA
| | - D H Solomon
- 1 Brigham and Women's Hospital, Division of Rheumatology, Immunology and Allergy, Boston, USA.,2 Brigham and Women's Hospital, Division of Pharmacoepidemiology and Pharmacoeconomics, Boston, USA
| | - S C Kim
- 1 Brigham and Women's Hospital, Division of Rheumatology, Immunology and Allergy, Boston, USA.,2 Brigham and Women's Hospital, Division of Pharmacoepidemiology and Pharmacoeconomics, Boston, USA
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Patorno E, Everett BM, Goldfine AB, Glynn RJ, Liu J, Gopalakrishnan C, Kim SC. Comparative cardiovascular safety of glucagon-like peptide-1 receptor agonists versus other antidiabetic drugs in routine care: a cohort study. Diabetes Obes Metab 2016; 18:755-65. [PMID: 27003762 DOI: 10.1111/dom.12665] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Revised: 01/23/2016] [Accepted: 03/17/2016] [Indexed: 12/25/2022]
Abstract
AIMS To evaluate the comparative cardiovascular disease (CVD) safety of glucagon-like peptide-1 receptor agonists (GLP-1 RAs) in head-to-head comparisons with dipeptidyl peptidase-4 (DPP-4) inhibitors, sulphonylureas or insulin, when added to metformin, as used in 'real-world' patients with type 2 diabetes mellitus (T2DM). METHODS Within a large US commercial health plan database linked to laboratory test results, we identified three pairwise 1 : 1 propensity-score-matched cohorts of patients with T2DM aged ≥18 years treated with metformin who initiated a GLP-1 RA or a comparator, i.e. DPP-4 inhibitor (n = 35 534), second-generation sulphonylureas (n = 28 138) or insulin (n = 47 068), between 2005 and 2013. We examined the association between drug initiation and a composite CVD endpoint, comprising hospitalizations for acute myocardial infarction, unstable angina, stroke or coronary revascularization. RESULTS During the course of 1 year, there were 13.9 and 13.7 CVD events per 1000 person-years among propensity-score-matched initiators of GLP-1 RAs versus DPP-4 inhibitors [hazard ratio (HR) 1.02; 95% confidence interval (CI) 0.84-1.24]; and 12.1 versus 14.0 events among initiators of GLP-1 RAs versus sulphonylureas (HR 0.86; 95% CI 0.69-1.08). The effect estimates for GLP-1 RAs versus insulin were sensitive to the adjustment for glycated haemoglobin, after which the HR was 1.01 (95% CI 0.73-1.41). Results were robust across several sensitivity analyses, including an as-treated analysis considering up to 8.7 years of follow-up. CONCLUSIONS This large study, performing head-to-head comparisons of GLP-1 RAs with other antidiabetic agents in real-world patients, provides estimates of relative safety precise enough to exclude large differences in CVD risk and adds further understanding to results from recent clinical trials.
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Affiliation(s)
- E Patorno
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - B M Everett
- Divisions of Cardiovascular and Preventive Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - A B Goldfine
- Clinical Research, Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA
| | - R J Glynn
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - J Liu
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - C Gopalakrishnan
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - S C Kim
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Division of Rheumatology, Allergy and Immunology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
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Kim SC, Lee KH, Choi HY, Noble J, Lee K, Jeon HJ. On-scene factors that predict severe injury of patients involved in frontal crashes of passenger cars. Eur J Trauma Emerg Surg 2016; 43:663-670. [PMID: 27469515 DOI: 10.1007/s00068-016-0714-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 07/19/2016] [Indexed: 10/21/2022]
Abstract
PURPOSE We sought to determine on-scene factors that predict severe injury to the occupants of passenger cars involved in frontal crashes. METHODS From January 2011 to December 2014, we collected data from patients who were taken to two emergency centres following a frontal motor vehicle crash. Binomial logistic regression was used to model the effects of occupant characteristics (sex, age, body mass index), vehicle damage (according to the collision deformation classification code), and safety devices on severe injuries (injury severity score >15). RESULTS Of 344 subjects, 75 (21.8 %) had severe injuries. Sex, seat belt status, extent of vertical crash, intrusion, and deformation extent (DE) were significantly different between severe and non-severe injuries. After adjusting for confounders, non-use of seat belt tripled the odds of severe injury [odds ratio (OR) 2.7, 95 % confidence interval (CI) 1.461-5.105]. DE ≥4 and intrusion increased the risk of severe injury (OR 2.4, 95 % CI 1.120-5.204 and OR 5.2, 95 % CI 2.525-10.780, respectively). A combination model to predict severe injury using intrusion, seat belt use, and DE ≥4 demonstrated 56.0 % sensitivity, 88.9 % specificity, and 58.4 % positive predictive value (AUC = 0.781, 95 % CI 0.734-0.824). CONCLUSIONS For passenger cars involved in a frontal crash, intrusion, unbelted status, and DE ≥4 are good predictors of severe injury. Sequential criteria using vehicle DE, seat belt use, and intrusion can be used by first responders to triage patients involved in a frontal collision.
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Affiliation(s)
- S C Kim
- Department of Emergency Medicine, Konkuk University School of Medicine Chungju Hospital, 82 Gukwon-daero, Chungju, South Korea
| | - K H Lee
- Department of Emergency Medicine, Yonsei University Wonju College of Medicine, 20 Ilsan-ro, Wonju, South Korea.
| | - H Y Choi
- Department of Mechanical System Design, Hongik University College of Engineering, 94 Wausan-ro, Mapo-gu, Seoul, South Korea
| | - J Noble
- Department of Pediatric Emergency Medicine, Children's Hospital of Michigan, 3901 Beaubien St, Detroit, MI, USA
| | - K Lee
- Department of Preventive Medicine, Dongguk University Kyeongju Hospital, 1090-1 Seokjang-dong, Gyeongju, South Korea
| | - H J Jeon
- Department of Emergency Medicine, Konkuk University School of Medicine Chungju Hospital, 82 Gukwon-daero, Chungju, South Korea
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Ahn B, Schötz J, Okell WA, Süßmann F, Förg B, Kim SC, Kling MF, Kim D. Optimization of a nanotip on a surface for the ultrafast probing of propagating surface plasmons. Opt Express 2016; 24:92-101. [PMID: 26832240 DOI: 10.1364/oe.24.000092] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We theoretically analyze a method for characterizing propagating surface plasmon polaritons (SPPs) on a thin gold film. The SPPs are excited by few-cycle near-infrared pulses using Kretschmann coupling, and a nanotip is used as a local field sensor. This geometry removes the influence of the incident excitation laser from the near fields, and enhances the plasmon electric field strength. Using finite-difference-time-domain studies we show that the geometry can be used to measure SPP waveforms as a function of propagation distance. The effects of the nanotip shape and material on the field enhancement and plasmonic response are discussed.
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Kim SC, Lee YJ, Jeong JE, Joo JK, Lee KS. Incarceration of gravid uterus by growing subserosal myoma: case report. CLIN EXP OBSTET GYN 2016; 43:131-133. [PMID: 27048035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Incarceration of gravid uterus is a rare condition, occurring in one in 3,000 to 10,000 pregnancies during second trimester. Incarceration of uterus can cause several complications, such as uterine rupture, labor dystocia, and uncontrollable postpartum hemorrhage. Early diagnosis is important to prevent these complications, but there are no standard treatments of incarceration of gravid uterus. The authors present a case report of incarceration of gravid uterus caused by growing subserosal myoma, which was treated with myomectomy during second trimester.
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Joo JK, Jeong JE, Kim SC, Kim CW, Ko GR, Lee KS. Comparison of mechanical artificial shrinkage methods in mouse blastocyst vitrification. CLIN EXP OBSTET GYN 2016; 43:93-97. [PMID: 27048025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
PURPOSE OF INVESTIGATION This study was designed to determine which mechanical artificial shrinkage (AS) method, conducted by puncture, pipetting, or aspiration, was effective in increasing the re-expansion rate of mouse blastocysts. MATERIALS AND METHODS In each group, 30 mouse blastocysts were used. Before vitrification, the blastocoelic cavity was collapsed by puncture with a micro-needle, pipetting with a micro-glass pipette, and direct aspiration with an ICSI pipette. After thawing, the re-expansion rate of blastocysts was examined for each AS method. Re-expansion rate was checked at three, five, and seven hours after thawing. RESULTS The number of re-expanded mouse blastocysts at five hours after thawing was 12 in the puncture with a micro-needle group, 11 in the pipetting with a micro-glass pipette group, and 24 in the direct aspiration with an ICSI pipette group. The cumulative number of re-expanded mouse blastocysts at seven hours after thawing was 20 in the puncture with a micro-needle group, 20 in the pipetting with a micro-glass pipette group, and 28 in the direct aspiration with an ICSI pipette group. There were statistically significant differences in the cumulative number of re-expanded mouse blastocysts between five and seven hours after thawing (p = 0.001 and 0.021, respectively). CONCLUSIONS Direct aspiration with an ICSI pipette resulted in a higher re-expansion rate than the puncture and pipetting methods. It can be considered that the direct aspiration method is more convenient and simpler than the other two methods.
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Seo HL, Lee JH, Jang MH, Kwon YW, Cho IJ, Kim KJ, Park SJ, Kim SC, Kim YW, Byun SH. Mitochondria protection of Sparganii Rhizoma against oxidative stress in heptocytes. ACTA ACUST UNITED AC 2015. [DOI: 10.14374/hfs.2015.23.2.189] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kim SC, Li HL, Park JH, Kim IH. Crumbled or mashed feed had no significant effect on the performance of lactating sows or their offspring. J Anim Sci Technol 2015; 57:45. [PMID: 26705478 PMCID: PMC4690338 DOI: 10.1186/s40781-015-0078-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 12/16/2015] [Indexed: 11/30/2022]
Abstract
Background Physical and chemical properties of feedstuffs can be changed by feed processing. Moreover, through various mechanisms, feed processing can affect growth performance and feed efficiency of swine, nutrition value of the feed. Weaning-to service-intervals (WSI), subsequent farrowing rates, and total-born litter sizes were determined by feed intake and metabolic state during lactation. Methods A total of 20 sows (Landrace × Yorkshire) with an average body weight (BW) of 266.1 kg 4 d before farrowing were used to determine the effect of feed processing on the performance of lactating sows and their offspring. The following two dietary treatments were used: 1) Crumble diet (C); and 2) Mash diet (M). Ten replications were used for each treatment. Back fat thickness of sows was measured 6 cm off the midline at the 10th rib using a real-time ultrasound instrument at 4 d before farrowing, 1 d after farrowing, and during weaning. Sow BW were also checked at 4 d before farrowing, 1 d after farrowing, and during weaning. Fecal score of sows were assessed on d 14. Fecal score of piglets were observed on d 7, 15, and 24. Data were analyzed using t-test procedure of SAS (2014) with sow as experimental unit. Results No significant (p > 0.05) difference was observed in the reproduction performance of sows between the two treatments. In addition, there was no significant (p > 0.05) difference in the growth performance of piglets between the two treatments. Fecal score of sows or piglets showed no significant (p > 0.05) difference either. Conclusions In conclusion, different feed processing (mash or crumble) did not make any significant difference on the performance of lactation sow or their piglets.
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Affiliation(s)
- S C Kim
- Department of Animal Resource and Science, Dankook University, Cheonan, Choongnam 330-714 South Korea
| | - H L Li
- Department of Animal Resource and Science, Dankook University, Cheonan, Choongnam 330-714 South Korea
| | - J H Park
- Department of Animal Resource and Science, Dankook University, Cheonan, Choongnam 330-714 South Korea
| | - I H Kim
- Department of Animal Resource and Science, Dankook University, Cheonan, Choongnam 330-714 South Korea
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Chang Y, Moon JY, Cho YJ, Lee SM, Jeon K, Kim SC, Kim YS, Chong YP, Kim YS, Hong SB. The current pathogens and treatment of hospital-acquired pneumonia/ventilator-associated pneumonia in medical intensive care units. Intensive Care Med Exp 2015. [PMCID: PMC4798512 DOI: 10.1186/2197-425x-3-s1-a707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Najafzadeh M, Kim SC, Patterson C, Schneeweiss S, Katz JN, Brick GW, Ready JE, Polinski JM, Patorno E. Patients' perception about risks and benefits of antithrombotic treatment for the prevention of venous thromboembolism (VTE) after orthopedic surgery: a qualitative study. BMC Musculoskelet Disord 2015; 16:319. [PMID: 26503220 PMCID: PMC4624375 DOI: 10.1186/s12891-015-0777-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 10/15/2015] [Indexed: 11/24/2022] Open
Abstract
Background The 9th edition of the American College of Chest Physicians’ Antithrombotic Therapy and Prevention of Thrombosis guidelines emphasize the importance of considering the risk–benefit ratio of “patient-important” outcomes. However, little is known about patients’ perception and understanding regarding the different outcomes of antithrombotic treatment after orthopedic surgery, and the factors that influence their decision to use these treatments. Using a series of semi-structured interviews, we explored patients’ understanding and perception concerning the benefits and risks of antithrombotic treatment for the prevention of venous thromboembolism (VTE) after joint replacement surgery. Methods A series of semi-structured interviews were conducted with patients who had undergone knee or hip replacement surgery at a tertiary care hospital (Brigham and Women’s Hospital, Boston, MA) in 2014. Discussions were recorded and transcribed. Two investigators independently coded and analyzed the data to identify important themes and concepts using the constant comparative method. Results Of 64 patients who were invited, 12 patients (19 %) completed the interviews. The majority of patients (92 %) were aware of the benefits of antithrombotic therapy for reducing the risk of blood clots, while less than half of them had a clear understanding of deep vein thrombosis and pulmonary embolism. While all patients were aware of risk of minor bleeding, only 6 patients (50 %) considered the risk of major bleeding as a possible side effect of antithrombotic treatment. Overall, patients perceived bleeding as a less important outcome than a thrombotic event. The lack of awareness about the risk of major bleeding, the assumption that a short-term exposure would not meaningfully affect bleeding risk, and the assumption that bleeding is a controllable event influenced their perception. Most patients (83 %) stated that their decision to use antithrombotic medications was mainly based on the trust in their physician’s expertise. Conclusions Patients perceived thrombotic events as more important outcomes than bleeding events. Patients’ understanding of thrombotic and bleeding events varies and may play a key role in their preferences. The majority of patients stated that trust in their physician’s expertise had a large influence on their decision to use antithrombotic medications.
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Affiliation(s)
- M Najafzadeh
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
| | - S C Kim
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. .,Division of Rheumatology, Immunology and Allergy, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, USA.
| | - C Patterson
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
| | - S Schneeweiss
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
| | - J N Katz
- Division of Rheumatology, Immunology and Allergy, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, USA. .,Department of Orthopedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, USA.
| | - G W Brick
- Department of Orthopedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, USA.
| | - J E Ready
- Department of Orthopedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, USA.
| | - J M Polinski
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
| | - E Patorno
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
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Kim SC, Yang SRE. Coulomb Impurity Problem of Graphene in Strong Coupling Regime in Magnetic Fields. J Nanosci Nanotechnol 2015; 15:8238-8242. [PMID: 26726495 DOI: 10.1166/jnn.2015.11252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We investigate the Coulomb impurity problem of graphene in strong coupling limit in the presence of magnetic fields. When the strength of the Coulomb potential is sufficiently strong the electron of the lowest energy boundstate of the n = 0 Landau level may fall to the center of the potential. To prevent this spurious effect the Coulomb potential must be regularized. The scaling function for the inverse probability density of this state at the center of the impurity potential is computed in the strong coupling regime. The dependence of the computed scaling function on the regularization parameter changes significantly as the strong coupling regime is approached.
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Kim SC, Jeong YH, Yang SRE. Stability of Anomalous States of a Local Potential in Graphene. J Nanosci Nanotechnol 2015; 15:8263-8266. [PMID: 26726499 DOI: 10.1166/jnn.2015.11251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Graphene Landau levels have discrete energies consisting zero energy chiral states and non-zero energy states with mixed chirality. Each Landau level splits into discrete energies when a localized potential is present. A simple scaling analysis suggests that a localized potential can act as a strong perturbation, and that it can be even more singular in graphene than in ordinary two-dimensional systems of massful electrons. Parabolic, Coulomb, and Gaussian potentials in graphene may have anomalous boundstates whose probability density has a sharp peak inside the potential and a broad peak of size magnetic length l outside the potential. The n = 0 Landau level with zero energy has only one anomalous state while the n = ±1 Landau levels with non-zero energy have two (integer quantum number n is related to the quantized Landau level energies). These anomalous states can provide a new magnetospectroscopic feature in impurity cyclotron resonances of graphene. In the present work we investigate quantitatively the conditions under which the anomalous states can exist. These results may provide a guide in searching for anomalous states experimentally.
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Kim J, Seo J, Kim W, Yun HM, Kim SC, Jang Y, Jang K, Kim K, Kim B, Park S, Park I, Kim MK, Seo KS, Kim HB, Kim IH, Seo S, Song M. Effects of Palm Kernel Expellers on Productive Performance, Nutrient Digestibility, and White Blood Cells of Lactating Sows. Asian-Australas J Anim Sci 2015; 28:1150-4. [PMID: 26104523 PMCID: PMC4478483 DOI: 10.5713/ajas.14.0908] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 02/03/2015] [Accepted: 03/14/2015] [Indexed: 11/27/2022]
Abstract
This experiment was conducted to investigate the effects of palm kernel expellers on productive performance, nutrient digestibility, and changes in white blood cells (WBC) of lactating sows. A total of 14 sows (200±12 kg of average body weight [BW]; 2.5 of average parity) were used and moved from gestation room to farrowing room on d 109 of gestation. Sows were randomly assigned to 2 dietary treatments in a completely randomized design. The treatments were a diet based on corn and soybean meal (CON) and CON added with 20% of palm kernel expellers (PKE). Sows were fed the treatments for 28 days (weaning) after farrowing. Blood was collected from each sow and 4 randomly selected piglets from each sow before farrowing or on d 3, 7, or 14 of lactation. Sows were fed respective treatments containing 0.2% chromic oxide from d 15 to 21 of lactation. Fecal samples were collected daily for the last 3 days after the 4-d adjustment period. Measurements were performances and WBC changes of sows and litter, nutrient digestibility of sows, and daily diarrhea of litter. Sows fed PKE had greater average daily feed intake (7.38 vs 7.10 kg/d; p<0.05) and lost less BW (−6.85 vs −8.54 kg; p<0.05) and backfat depth (−0.42 vs −0.71 mm; p<0.05) than those fed CON. However, there were no differences on digestibility of dry matter, nitrogen, and energy and weaning to estrus interval of sows fed either CON or PKE. Piglets from sows fed PKE gained more BW (203 vs 181 g/d; p = 0.08) and had less frequency of diarrhea (6.80 vs 8.56%; p = 0.07) than those from sows fed CON. On the other hand, no difference was found on preweaning mortality of piglets from sows fed either CON or PKE. Sows fed PKE had lower number of WBC (9.57 vs 11.82 ×103/μL; p = 0.09) before farrowing than those fed CON, but no difference on d 3 and 7. Similarly, piglets from sows fed PKE had also lower number of WBC (7.86 vs 9.80 ×103/μL; p<0.05) on d 14 of lactation than those from sows fed CON, but no difference on d 3 and 7. In conclusion, addition of 20% palm kernel expellers to lactation diet based on corn and soybean meal had no negative effects on productive performance, nutrient digestibility, and WBC changes of lactating sows.
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Affiliation(s)
- J Kim
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - J Seo
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - W Kim
- Department of Animal Biosystem Sciences, Chungnam National University, Daejeon 305-764, Korea
| | - H M Yun
- Department of Animal Resource and Science, Dankook University, Cheonan 330-774, Korea
| | - S C Kim
- Department of Animal Resource and Science, Dankook University, Cheonan 330-774, Korea
| | - Y Jang
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - K Jang
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - K Kim
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - B Kim
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - S Park
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - I Park
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - M K Kim
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - K S Seo
- Department of Animal Science and Technology, Sunchon National University, Suncheon 540-742, Korea
| | - H B Kim
- Department of Animal Resource and Science, Dankook University, Cheonan 330-774, Korea
| | - I H Kim
- Department of Animal Resource and Science, Dankook University, Cheonan 330-774, Korea
| | - S Seo
- Department of Animal Biosystem Sciences, Chungnam National University, Daejeon 305-764, Korea
| | - M Song
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
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Seo J, Kim W, Kim J, Kim JK, Kim SC, Jang Y, Jang K, Kim K, Kim B, Park S, Park I, Kim MK, Seo KS, Kim HB, Kim IH, Seo S, Song M. Effects of Palm Kernel Expellers on Growth Performance, Nutrient Digestibility, and Blood Profiles of Weaned Pigs. Asian-Australas J Anim Sci 2015; 28:987-92. [PMID: 26104403 PMCID: PMC4478508 DOI: 10.5713/ajas.14.0842] [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] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 12/29/2014] [Accepted: 01/26/2015] [Indexed: 11/27/2022]
Abstract
This experiment was conducted to investigate the effects of palm kernel expellers on growth performance, nutrient digestibility, and blood profiles of weaned pigs. A total of 88 weaned pigs (6.94±0.76 kg body weight [BW]; 28 d old) were randomly allotted to 2 dietary treatments (4 pigs/pen; 11 replicates/treatment) in a randomized complete block design (sex as a block). The dietary treatments were a typical nursery diet based on corn and soybean meal (CON) and CON added with 20% of palm kernel expellers (PKE). Pigs were fed for 6 wk using a 3-phase feeding program with declining diet complexity and with phases of 1, 2, and 3 wk, respectively. Blood was collected from randomly selected 2 pigs in each pen before weaning and on d 7 after weaning. Pigs were fed respective dietary treatments containing 0.2% chromic oxide from d 29 to 35 after weaning. Fecal samples were collected from randomly selected 2 pigs in each pen daily for the last 3 days after the 4-d adjustment period. Measurements were growth performances, digestibility of dry matter, nitrogen and energy, white and red blood cell counts, packed cell volume, and incidence of diarrhea. The PKE increased average daily gain (ADG) (246 vs 215 g/d; p = 0.06) and average daily feed intake (ADFI) (470 vs 343 g/d; p<0.05) and decreased gain-to-feed ratio (G:F) (0.522 vs 0.628 g/g; p<0.05) during phase 2 compared with CON, but did not affect growth performance during phase 1 and 3. During overall experimental period, PKE increased ADG (383 vs 362 g/d; p = 0.05) and ADFI (549 vs 496 g/d; p<0.05) compared with CON, but did not affect G:F. However, no differences were found on digestibility of dry matter, nitrogen, and energy between CON and PKE. The PKE reduced frequency of diarrhea (15% vs 25%; p = 0.08) for the first 2 wk after weaning compared with CON. Similarly, PKE decreased white blood cells (8.19 vs 9.56×10(3)/μL; p = 0.07), red blood cells (2.92 vs 3.25×10(6)/μL; p = 0.09), and packed cell volume (11.1% vs 12.6%; p = 0.06) on d 7 after weaning compared with CON. In conclusion, addition of 20% palm kernel expellers to nursery diet based on corn and soybean meal had no negative effects on growth performance, nutrient digestibility, and blood profiles of weaned pigs.
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Affiliation(s)
- J Seo
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - W Kim
- Department of Animal Biosystem Sciences, Chungnam National University, Daejeon 305-764, Korea
| | - J Kim
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - J K Kim
- Department of Animal Resource and Science, Dankook University, Cheonan 330-774, Korea
| | - S C Kim
- Department of Animal Resource and Science, Dankook University, Cheonan 330-774, Korea
| | - Y Jang
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - K Jang
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - K Kim
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - B Kim
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - S Park
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - I Park
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - M K Kim
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - K S Seo
- Department of Animal Science and Technology, Sunchon National University, Suncheon 540-742, Korea
| | - H B Kim
- Department of Animal Resource and Science, Dankook University, Cheonan 330-774, Korea
| | - I H Kim
- Department of Animal Resource and Science, Dankook University, Cheonan 330-774, Korea
| | - S Seo
- Department of Animal Biosystem Sciences, Chungnam National University, Daejeon 305-764, Korea
| | - M Song
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
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Upadhaya SD, Kim SC, Valientes RA, Kim IH. The Effect of Bacillus-based Feed Additive on Growth Performance, Nutrient Digestibility, Fecal Gas Emission, and Pen Cleanup Characteristics of Growing-finishing Pigs. Asian-Australas J Anim Sci 2015; 28:999-1005. [PMID: 26104405 PMCID: PMC4478510 DOI: 10.5713/ajas.15.0066] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 02/23/2015] [Accepted: 03/06/2015] [Indexed: 11/27/2022]
Abstract
Bacillus-based feed additive was evaluated for its efficacy on growth performance, nutrient digestibility, fecal gas emission, and the consumption of time and amount of water for cleaning the pen of growing finishing pigs. A total of 120 growing pigs (23.59±1.41 kg) were used in a 16-wk feeding trial. Pigs were randomly distributed into 1 of 2 treatments on the basis of body weight and sex. There were 12 replicate pens per treatment, with 5 pigs (3 barrows and 2 gilts) per pen. Dietary treatments were CON which was basal diet, and T1 which was CON+62.5 ppm microbial feed additive that provided 1.47×10(8) cfu of Bacillus organisms per gram of supplement. During the weeks 0 to 6, average daily gain (ADG) in T1 treatment was higher (p<0.05) than CON, but no improvement in average daily feed intake (ADFI) and feed efficiency (G:F) was noted. During 6 to 16 weeks, no difference (p>0.05) was noted in growth performance. However, ADG was improved (p<0.05) and overall ADFI tended (p = 0.06) to improve in T1 compared with CON. At week 6, the co-efficient of apparent total tract digestibility (CATTD) of dry matter (DM) nitrogen (N) was increased (p<0.05) in T1 compared with CON. Fecal NH3 emission was decreased (p<0.05) in T1 compared with CON, at the end of 6th and 15th weeks. The time and water consumed for washing the pens were decreased (p<0.05) in T1 compared with CON. In conclusion, supplementation with Bacillus-based feed additive could improve the overall growth performances, increase the CATTD of DM and decrease the fecal NH3 content and the time and water consumed in washing the pens for growing-finishing pigs.
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Affiliation(s)
- S D Upadhaya
- DSM Nutritional Products Philippines, Inc., Taguig city 1634, Philippines
| | - S C Kim
- DSM Nutritional Products Philippines, Inc., Taguig city 1634, Philippines
| | - R A Valientes
- DSM Nutritional Products Philippines, Inc., Taguig city 1634, Philippines
| | - I H Kim
- DSM Nutritional Products Philippines, Inc., Taguig city 1634, Philippines
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Kim DS, Kang C, Kim DH, Kim SC, Lee SH, Jeong JH, Kang TS, Jung SM, Lee SB, Lee KW, Kim RB. External validation of the prognostic index in acute paraquat poisoning. Hum Exp Toxicol 2015; 35:366-70. [PMID: 25977258 DOI: 10.1177/0960327115586821] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE Some studies have evaluated the prognostic indicators associated with acute paraquat (PQ) poisoning. In this study, we externally validated the Yamaguchi index, which showed a good prognostic relevance in predicting the outcome of PQ poisoning. METHODS A retrospective analysis of 297 patients was performed. The Yamaguchi index was calculated using the following equation: Eq1 = (K(+) × HCO3(-))/(Creatinine × 0.088)(mEq/L) against time from PQ ingestion (T). The patients were divided into three groups: group A: Eq1 > 1500 - 399 × log T, group B: 930 - 399 × log T < Eq1 ≤ 1500 - 399 × log T, and group C: Eq1 ≤ 930 - 399 × log T). RESULTS The overall mortality rate was 65.3% (194 of 297). The mortality rates of the three groups stratified by the Yamaguchi index were 7.1% (2 of 28), 22.4% (15 of 67), and 87.6% (177 of 202). The area under the receiver-operating characteristic curve for predicting mortality from the external validation of the Yamaguchi index was 0.842 (95% confidence interval: 0.795-0.882). CONCLUSION The Yamaguchi index is a reliable prognostic factor and could be helpful in predicting mortality due to PQ poisoning.
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Affiliation(s)
- D S Kim
- Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - C Kang
- Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea Gyeongsang Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - D H Kim
- Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - S C Kim
- Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea Gyeongsang Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - S H Lee
- Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea Gyeongsang Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - J H Jeong
- Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - T S Kang
- Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - S M Jung
- Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - S B Lee
- Department of Emergency Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - K W Lee
- Department of Emergency Medicine, Catholic University of Daegu, Daegu, Republic of Korea
| | - R B Kim
- Department of Preventive Medicine, Dong-A University, Busan, Republic of Korea
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Harrer S, Kim SC, Schieber C, Kannam S, Gunn N, Moore S, Scott D, Bathgate R, Skafidas S, Wagner JM. Label-free screening of single biomolecules through resistive pulse sensing technology for precision medicine applications. Nanotechnology 2015; 26:182502. [PMID: 25875197 DOI: 10.1088/0957-4484/26/18/182502] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Employing integrated nano- and microfluidic circuits for detecting and characterizing biological compounds through resistive pulse sensing technology is a vibrant area of research at the interface of biotechnology and nanotechnology. Resistive pulse sensing platforms can be customized to study virtually any particle of choice which can be threaded through a fluidic channel and enable label-free single-particle interrogation with the primary read-out signal being an electric current fingerprint. The ability to perform label-free molecular screening with single-molecule and even single binding site resolution makes resistive pulse sensing technology a powerful tool for analyzing the smallest units of biological systems and how they interact with each other on a molecular level. This task is at the core of experimental systems biology and in particular 'omics research which in combination with next-generation DNA-sequencing and next-generation drug discovery and design forms the foundation of a novel disruptive medical paradigm commonly referred to as personalized medicine or precision medicine. DNA-sequencing has approached the 1000-Dollar-Genome milestone allowing for decoding a complete human genome with unmatched speed and at low cost. Increased sequencing efficiency yields massive amounts of genomic data. Analyzing this data in combination with medical and biometric health data eventually enables understanding the pathways from individual genes to physiological functions. Access to this information triggers fundamental questions for doctors and patients alike: what are the chances of an outbreak for a specific disease? Can individual risks be managed and if so how? Which drugs are available and how should they be applied? Could a new drug be tailored to an individual's genetic predisposition fast and in an affordable way? In order to provide answers and real-life value to patients, the rapid evolvement of novel computing approaches for analyzing big data in systems genomics has to be accompanied by an equally strong effort to develop next-generation DNA-sequencing and next-generation drug screening and design platforms. In that context lab-on-a-chip devices utilizing nanopore- and nanochannel based resistive pulse-sensing technology for DNA-sequencing and protein screening applications occupy a key role. This paper describes the status quo of resistive pulse sensing technology for these two application areas with a special focus on current technology trends and challenges ahead.
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Affiliation(s)
- S Harrer
- IBM Research-Australia, 204 Lygon Street, 3053 Carlton, VIC, Australia. University of Melbourne, 3010 Parkville, VIC, Australia
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Jo W, Kim J, Yoon J, Jeong D, Cho S, Jeong H, Yoon YJ, Kim SC, Gho YS, Park J. Large-scale generation of cell-derived nanovesicles. Nanoscale 2014; 6:12056-64. [PMID: 25189198 DOI: 10.1039/c4nr02391a] [Citation(s) in RCA: 137] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Exosomes are enclosed compartments that are released from cells and that can transport biological contents for the purpose of intercellular communications. Research into exosomes is hindered by their rarity. In this article, we introduce a device that uses centrifugal force and a filter with micro-sized pores to generate a large quantity of cell-derived nanovesicles. The device has a simple polycarbonate structure to hold the filter, and operates in a common centrifuge. Nanovesicles are similar in size and membrane structure to exosomes. Nanovesicles contain intracellular RNAs ranging from microRNA to mRNA, intracellular proteins, and plasma membrane proteins. The quantity of nanovesicles produced using the device is 250 times the quantity of naturally secreted exosomes. Also, the quantity of intracellular contents in nanovesicles is twice that in exosomes. Nanovesicles generated from murine embryonic stem cells can transfer RNAs to target cells. Therefore, this novel device and the nanovesicles that it generates are expected to be used in exosome-related research, and can be applied in various applications such as drug delivery and cell-based therapy.
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Affiliation(s)
- W Jo
- Department of Mechanical Engineering, POSTECH, 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 790-784, Republic of Korea.
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Kim SC, Yang SRE, MacDonald AH. Impurity cyclotron resonance of anomalous Dirac electrons in graphene. J Phys Condens Matter 2014; 26:325302. [PMID: 25049042 DOI: 10.1088/0953-8984/26/32/325302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We have investigated a new feature of impurity cyclotron resonances common to various localized potentials of graphene. A localized potential can interact with a magnetic field in an unexpected way in graphene. It can lead to formation of anomalous boundstates that have a sharp peak with a width R in the probability density inside the potential and a broad peak of size magnetic length ℓ outside the potential. We investigate optical matrix elements of anomalous states and find that they are unusually small and depend sensitively on the magnetic field. The effect of many-body interactions on their optical conductivity is investigated using a self-consistent time-dependent Hartree-Fock approach. For a completely filled Landau level we find that an excited electron-hole pair, originating from the optical transition between two anomalous impurity states, is nearly uncorrelated with other electron-hole pairs, although it displays substantial exchange self-energy effects. This absence of correlation is a consequence of a small vertex correction in comparison to the difference between renormalized transition energies computed within the one electron-hole pair approximation. However, an excited electron-hole pair originating from the optical transition between a normal and an anomalous impurity state can be substantially correlated with other electron-hole states with a significant optical strength.
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Affiliation(s)
- S C Kim
- Physics Department, Korea University, Seoul 136-713, Korea
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Alexandrou AJ, Milnes JT, Sun SZ, Fermini B, Kim SC, Jenkinson S, Leishman DJ, Witchel HJ, Hancox JC, Leaney JL. The human ether-a'-go-go related gene (hERG) K+ channel blockade by the investigative selective-serotonin reuptake inhibitor CONA-437: limited dependence on S6 aromatic residues. J Physiol Pharmacol 2014; 65:511-523. [PMID: 25179083] [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] [Received: 09/17/2011] [Accepted: 04/22/2014] [Indexed: 06/03/2023]
Abstract
Diverse non-cardiac drugs adversely influence cardiac electrophysiology by inhibiting repolarising K(+) currents mediated by channels encoded by the human ether-a-go-go-related gene (hERG). In this study, pharmacological blockade of hERG K(+) channel current (I(hERG)) by a novel investigative serotonin-selective reuptake inhibitor (SSRI), CONA-437, was investigated. Whole-cell patch-clamp measurements of I(hERG) were made from human embryonic kidney (HEK 293) cells expressing wild-type (WT) or mutant forms of the hERG channel. With a step-ramp voltage-command, peak I(hERG) was inhibited with an IC(50) of 1.34 μM at 35 ±1°C; the IC(50) with the same protocol was not significantly different at room temperature. Voltage-command waveform selection had only a modest effect on the potency of I(hERG) block: the IC50 with a ventricular action potential command was 0.72 μM. I(hERG) blockade developed rapidly with time following membrane depolarisation and showed a weak dependence on voltage, accompanied by a shift of ≈ -5 mV in voltage-dependence of activation. There was no significant effect of CONA-437 on voltage-dependence of I(hERG) inactivation, though at some voltages an apparent acceleration of the time-course of inactivation was observed. Significantly, mutation of the S6 aromatic amino acid residues Y652 and F656 had only a modest effect on I(hERG) blockade by CONA-437 (a 3-4 fold shift in affinity). CONA-437 at up to 30 μM had no significant effect on either Nav1.5 sodium channels or L-type calcium channels. In conclusion, the novel SSRI CONA-437 is particularly notable as a gating-dependent hERG channel inhibitor for which neither S6 aromatic amino-acid constituent of the canonical drug binding site on the hERG channel appears obligatory for I(hERG) inhibition to occur.
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Affiliation(s)
- A J Alexandrou
- Pfizer Neusentis, The Portway Building, Granta Park, Cambridge, CB21 6GS, United Kingdom.
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Kim BS, Kim SC, Park CM, Lee SH, Cho SH, Kim NK, Jang GW, Yoon DH, Yang BS, Hong SK, Seong HH, Choi BH. Genetic Polymorphisms of the Bovine NOV Gene Are Significantly Associated with Carcass Traits in Korean Cattle. Asian-Australas J Anim Sci 2014; 26:780-7. [PMID: 25049850 PMCID: PMC4093253 DOI: 10.5713/ajas.2012.12514] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Revised: 01/04/2013] [Accepted: 12/30/2012] [Indexed: 11/27/2022]
Abstract
The objective of this study was to investigate single nucleotide polymorphisms (SNPs) in the bovine nephroblastoma overexpressed (NOV) gene and to evaluate whether these polymorphisms affect carcass traits in the Korean cattle population. We resequenced to detect SNPs from 24 unrelated individuals and identified 19 SNPs within the full 8.4-kb gene, including the 1.5-kb promoter region. Of these 19 SNPs, four were selected for genotyping based on linkage disequilibrium (LD). We genotyped 429 steers to assess the associations of these four SNPs with carcass traits. Statistical analysis revealed that g.7801T>C and g.8379A>C polymorphisms in the NOV gene were associated with carcass weight (p = 0.012 and 0.008, respectively), and the g.2005A>G polymorphism was associated with the back fat thickness (BF) trait (p = 0.0001). One haplotype of the four SNPs (GGTA) was significantly associated with BF (p = 0.0005). Our findings suggest that polymorphisms in the NOV gene may be among the important genetic factors affecting carcass yield in beef cattle.
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Affiliation(s)
- B S Kim
- Animal Genome and Bioinformatics Division, National Institute of Animal Science, Rural Development Administration, Chuksan gil 77, Kwonsun-gu, Suwon, Korea
| | - S C Kim
- Animal Genome and Bioinformatics Division, National Institute of Animal Science, Rural Development Administration, Chuksan gil 77, Kwonsun-gu, Suwon, Korea
| | - C M Park
- Animal Genome and Bioinformatics Division, National Institute of Animal Science, Rural Development Administration, Chuksan gil 77, Kwonsun-gu, Suwon, Korea
| | - S H Lee
- Animal Genome and Bioinformatics Division, National Institute of Animal Science, Rural Development Administration, Chuksan gil 77, Kwonsun-gu, Suwon, Korea
| | - S H Cho
- Animal Genome and Bioinformatics Division, National Institute of Animal Science, Rural Development Administration, Chuksan gil 77, Kwonsun-gu, Suwon, Korea
| | - N K Kim
- Animal Genome and Bioinformatics Division, National Institute of Animal Science, Rural Development Administration, Chuksan gil 77, Kwonsun-gu, Suwon, Korea
| | - G W Jang
- Animal Genome and Bioinformatics Division, National Institute of Animal Science, Rural Development Administration, Chuksan gil 77, Kwonsun-gu, Suwon, Korea
| | - D H Yoon
- Animal Genome and Bioinformatics Division, National Institute of Animal Science, Rural Development Administration, Chuksan gil 77, Kwonsun-gu, Suwon, Korea
| | - B S Yang
- Animal Genome and Bioinformatics Division, National Institute of Animal Science, Rural Development Administration, Chuksan gil 77, Kwonsun-gu, Suwon, Korea
| | - S K Hong
- Animal Genome and Bioinformatics Division, National Institute of Animal Science, Rural Development Administration, Chuksan gil 77, Kwonsun-gu, Suwon, Korea
| | - H H Seong
- Animal Genome and Bioinformatics Division, National Institute of Animal Science, Rural Development Administration, Chuksan gil 77, Kwonsun-gu, Suwon, Korea
| | - B H Choi
- Animal Genome and Bioinformatics Division, National Institute of Animal Science, Rural Development Administration, Chuksan gil 77, Kwonsun-gu, Suwon, Korea
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Amanullah SM, Kim DH, Lee HJ, Joo YH, Kim SB, Kim SC. Effects of microbial additives on chemical composition and fermentation characteristics of barley silage. Asian-Australas J Anim Sci 2014; 27:511-7. [PMID: 25049981 PMCID: PMC4093519 DOI: 10.5713/ajas.2013.13617] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Revised: 12/19/2013] [Accepted: 11/29/2013] [Indexed: 11/27/2022]
Abstract
This study examined the effects of bacterial inoculants on chemical composition and fermentation indices of barley silage. Barley forage (Youngyang) was harvested at 24% dry matter (DM) and wilted to 47.9% DM. The wilted barley forage was chopped to 3–5 cm length and applied with no inoculant (CON), L. plantarum (1×1010 cfu/g, LP) or Effective Microorganisms (0.5×109 cfu/g, EM). Then the forages were ensiled in four replications for each treatment in 20 L mini silos and stored for 100 days. The contents of crude protein and ether extract were higher in CON silage ensiled for 100-d, while the contents of DM and crude ash were higher in EM silage (p<0.05). The contents of ADF, NDF and hemicellulose as well as the in vitro DM digestibility were not affected by microbial inoculation (p>0.05). The pH, ammonia-N concentration and lactate to acetate ratio were higher (p<0.05) in CON silage, while lactate concentrations were higher (p<0.05) in CON and LP silage. Acetate concentration and lactic acid bacteria was increased (p<0.05) by both inoculants (LP and EM), but propionate concentration and yeast was increased (p<0.05) by EM and LP, respectively. These results indicated that the fermentation quality of barley silage was improved by the application of bacterial inoculants.
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Affiliation(s)
- S M Amanullah
- Division of Applied Life Science (BK21Plus, Institute of Agriculture and Life Science), Gyeongsang National University, Jinju 660-701, Korea ; Bangladesh Livestock Research Institute, Savar, Dhaka-1314, Bangladesh
| | - D H Kim
- Division of Applied Life Science (BK21Plus, Institute of Agriculture and Life Science), Gyeongsang National University, Jinju 660-701, Korea
| | - H J Lee
- Division of Applied Life Science (BK21Plus, Institute of Agriculture and Life Science), Gyeongsang National University, Jinju 660-701, Korea
| | - Y H Joo
- Division of Applied Life Science (BK21Plus, Institute of Agriculture and Life Science), Gyeongsang National University, Jinju 660-701, Korea
| | - S B Kim
- National Institute of Animal Science, RDA, Suwon 441-706, Korea
| | - S C Kim
- Division of Applied Life Science (BK21Plus, Institute of Agriculture and Life Science), Gyeongsang National University, Jinju 660-701, Korea
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Abstract
We report on two patients from one family with Marie Unna hypotrichosis who showed a diffuse hair defect which typically occurs as an isolated phenomenon. The ultrastructural hair findings consisted of longitudinal grooving of the hair shafts and a flattening in cross-section. Characteristically, scalp hair had been lost from the scalp margins and a high frontal and nuchal hairline had been present at birth. Eyelashes were absent, and eyebrows, axillary, and pubic hair were very sparse. Other affected cases have been reported in Caucasian families; however, this is the first case in the English medical literature of a family from Asia affected by Marie Unna hypotrichosis.
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Affiliation(s)
- H S Kim
- Department of Dermatology, Yonsei University College of Medicine, Seoul, Korea
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Lee CW, Cho IJ, Lee YJ, Son YS, Kwak I, Ahn YT, Kim SC, An WG. Effects of dietary levels of glycine, threonine and protein on threonine efficiency and threonine dehydrogenase activity in hepatic mitochondria of chicks. Asian-Australas J Anim Sci 2014; 27:69-76. [PMID: 25049928 PMCID: PMC4093280 DOI: 10.5713/ajas.2012.12585] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/20/2012] [Revised: 09/26/2013] [Accepted: 12/26/2012] [Indexed: 11/27/2022]
Abstract
This study was carried out to evaluate the relationship between threonine (Thr) efficiency and Thr dehydrogenase (TDG) activity as an indicator of Thr oxidation on chicks fed with levels of diets (CP [17.5% and 21.5%] and Thr [3.8 and 4.7 g/100 g CP]; glycine [Gly][0.64% and 0.98%] and true digestible Thr [dThr] [0.45% and 0.60%]). Calculation of the Thr efficiency was based on N-balance data and an exponential N-utilization model, and TDG activity was determined as accumulation of aminoacetone and Gly during incubation of hepatic mitochondria. This study found that in the liver of chicks who received a diet containing up to 0.79% Thr (4.7 g Thr/100 g of CP) in the 17.5% CP diet, no significant (p>0.05) effect on TDG activity was observed. However, significantly (p = 0.014) increased TDG activity was observed with a diet containing 21.5% CP (4.7 g Thr/100 g of CP) and the efficiency of Thr utilization showed a significant (p = 0.001) decrease, indicating the end of the Thr limiting range. No significant (p>0.05) effect on the total TDG activity and accumulation of Gly was observed with addition of Gly to a diet containing 0.45% dThr. In addition, addition of Gly to a diet containing 0.60% dThr also did not result in a change in accumulation of Gly. Due to an increase in accumulation of aminoacetone, an elevated effect on total TDG activity was also observed. No significant (p>0.05) reduction in the efficiency of Thr utilization was observed after addition of Gly at the level of 0.45% dThr. However, significantly (p<0.001) reduced efficiency of Thr utilization was observed after addition of Gly at the level of 0.60% dThr. Collectively, we found that TDG was stimulated not only by addition of Thr and protein to the diet, but also by addition of Gly, and efficiency of Thr utilization was favorably affected by addition of Gly at the level near to the optimal Thr concentration. In addition, no metabolic requirement of Gly through the TDG pathway was observed with almost the same accumulation of Gly and a slight increase in TDG activity by addition of Gly. Thus, our findings suggest that determination of TDG activity and parameter of efficiency of Thr utilization may be useful for evaluation of dietary Thr level.
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Affiliation(s)
- C W Lee
- Institute of Marine BioTechnology, Pusan National University, Busan, 609-735, Korea
| | - I J Cho
- Institute of Marine BioTechnology, Pusan National University, Busan, 609-735, Korea
| | - Y J Lee
- Institute of Marine BioTechnology, Pusan National University, Busan, 609-735, Korea
| | - Y S Son
- Institute of Marine BioTechnology, Pusan National University, Busan, 609-735, Korea
| | - I Kwak
- Institute of Marine BioTechnology, Pusan National University, Busan, 609-735, Korea
| | - Y T Ahn
- Institute of Marine BioTechnology, Pusan National University, Busan, 609-735, Korea
| | - S C Kim
- Institute of Marine BioTechnology, Pusan National University, Busan, 609-735, Korea
| | - W G An
- Institute of Marine BioTechnology, Pusan National University, Busan, 609-735, Korea
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