1
|
Li M, Leonard TR, Han SW, Moo EK, Herzog W. Gaining new understanding of sarcomere length non-uniformities in skeletal muscles. Front Physiol 2024; 14:1242177. [PMID: 38274042 PMCID: PMC10808998 DOI: 10.3389/fphys.2023.1242177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Accepted: 12/14/2023] [Indexed: 01/27/2024] Open
Abstract
Sarcomere lengths are non-uniform on all structural levels of mammalian skeletal muscle. These non-uniformities have been associated with a variety of mechanical properties, including residual force enhancement and depression, creep, increased force capacity, and extension of the plateau of the force-length relationship. However, the nature of sarcomere length non-uniformities has not been explored systematically. The purpose of this study was to determine the properties of sarcomere length non-uniformities in active and passive muscle. Single myofibrils of rabbit psoas (n = 20; with 412 individual sarcomeres) were subjected to three activation/deactivation cycles and individual sarcomere lengths were measured at 4 passive and 3 active points during the activation/deactivation cycles. The myofibrils were divided into three groups based on their initial average sarcomere lengths: short, intermediate, and long average sarcomere lengths of 2.7, 3.2, and 3.6 µm. The primary results were that sarcomere length non-uniformities did not occur randomly but were governed by some structural and/or contractile properties of the sarcomeres and that sarcomere length non-uniformities increased when myofibrils went from the passive to the active state. We propose that the mechanisms that govern the systematic sarcomere lengths non-uniformities observed in active and passive myofibrils may be associated with the variable number of contractile proteins and the variable number and the adjustable stiffness of titin filaments in individual sarcomeres.
Collapse
Affiliation(s)
- Meng Li
- Human Performance Lab, University of Calgary, Calgary, AB, Canada
| | - T. R. Leonard
- Human Performance Lab, University of Calgary, Calgary, AB, Canada
| | - S. W. Han
- Institute of Physiology II, University of Münster, Münster, Germany
| | - E. K. Moo
- Human Performance Lab, University of Calgary, Calgary, AB, Canada
- Department of Technical Physics, University of Eastern Finland, Kuopio, Finland
- Department of Mechanical and Aerospace Engineering, Carleton University, Ottawa, ON, Canada
| | - W. Herzog
- Human Performance Lab, University of Calgary, Calgary, AB, Canada
| |
Collapse
|
2
|
Tiera MJ, Martins GO, Júnior AMM, Petrônio MS, Mello LR, Han SW. AMPHIPATHIC CHITOSANS AS VECTORS FOR SIRNA DELIVERY. Cytotherapy 2021. [DOI: 10.1016/j.jcyt.2021.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
3
|
Cho GJ, Lee KM, Kim HY, Han SW, Oh MJ, Chiec L, Chae YK. Postpartum haemorrhage requiring transfusion and risk of cardiovascular disease later in life: a retrospective cohort study. BJOG 2020; 128:738-744. [PMID: 32946626 DOI: 10.1111/1471-0528.16515] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/11/2020] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To determine whether postpartum haemorrhage (PPH) is associated with cardiovascular disease (CVD), including cerebrovascular and ischaemic heart disease beyond the peripartum period. DESIGN Population-based cohort study. SETTING Merged databases of the Korea National Health Insurance (KNHI) claims, National Health Screening Examination and National Health Screening Program for Infants and Children. POPULATION Women who gave birth in 2007 in the Republic of Korea and who were tracked through to 2015 for the occurrence of CVD. METHODS Patients were identified and the occurrences of PPH and transfusion were determined using the KNHI claims database. The occurrence of CVD was tracked through 2015 using codes from the International Classification of Diseases, tenth revision (ICD-10). MAIN OUTCOME MEASURES The risk of CVD after PPH. RESULTS Among 150 381 women who gave birth during the study period, 9107 were diagnosed with PPH and 899 were treated with transfusion. The risk of CVD in women with PPH was no different than in women without PPH, after adjustment (HR 1.03, 95% CI 0.93-1.13). The risk of CVD in women with PPH requiring transfusion was significantly increased compared with women without PPH, after adjustment (HR 1.60, 95% CI 1.25-2.06). The risk of CVD in women with PPH without transfusion was not significantly different compared with women without PPH (HR 0.96, 95% CI 0.86-1.07). CONCLUSIONS Postpartum haemorrhage (PPH) requiring transfusion is associated with an increased risk of CVD. Guidelines for management should be established, and further studies on the mechanisms involved should be conducted. TWEETABLE ABSTRACT PPH requiring transfusion is associated with an increased risk of CVD.
Collapse
Affiliation(s)
- G J Cho
- Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, Korea.,Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - K-M Lee
- School of Industrial Management Engineering, Korea University, Seoul, Korea
| | - H Y Kim
- Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, Korea
| | - S W Han
- School of Industrial Management Engineering, Korea University, Seoul, Korea
| | - M-J Oh
- Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, Korea
| | - L Chiec
- Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Y K Chae
- Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.,Robert H. Lurie Comprehensive Cancer Center of Northwestern University, Chicago, IL, USA
| |
Collapse
|
4
|
Kang JH, Ahamed S, Sa KH, Han SW, Kang YM. THU0077 CADHERINS GUIDE THE DIRECTIONAL MIGRATION OF THE SYNOVIOCYTES IN RHEUMATOID ARTHRITIS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.6426] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
Background:Aggressiveness of synoviocytes and collective migration of organized synovial tissues play a key role in the pathogenesis of pannus invasion into adjacent joint structure. Interactions among synovial cells for grouped movement, however, have not been properly elucidated.Objectives:We hypothesized that cadherins which have functions on the synovial invasion in RA, may play a critical role in collective migration of rheumatoid synoviocytes.Methods:Cadherins expression patterns on the synoviocytes isolated from patients with RA were evaluated using RT-PCR, flow cytometry, and western blot analysis. Mesenchymal and epithelial phenotypes were examined in cadherin overexpressing cell line by flow cytometry. L-cells with overexpression of CDH2 (CDH2hi), CDH11 (CDH11hi), and combination of CDH2/CDH11 (CDH2hi/CDH11hi) were prepared. Migration of cells was observed by taking time-lapse images with laser confocal microscope.In vitrocollective migration and directional movement in response to inflammatory mediators and different matrix rigidity were evaluated.In vivohoming of CDH2hi/CDH11hi-L-cells into joint tissues was performed in collagen induced arthritis (CIA) mouse. In vivoandex vivomigration pattern of CDH11hi-L-cells were investigated in nude mice using optical imaging system.Results:In rheumatoid synovial tissues, CDH2 and CDH11 were highly expressed compared to synovial tissues from osteoarthritis. CDH2 and CDH11 were also highly expressed on synovial fibroblasts isolated from RA. Phenotype analysis of mesenchymal and epithelial cells in CDH11hi-L-cells and CDH2hi/CDH11hi-L-cells showed increased expression of α5β1, CD44s, vimentin, and α-SMA compared with MOCK-L-cells. We then analyzed the pattern of migration of MOCK, CDH2hi, CDH11hi, and CDH2hi/CDH11hi-L-cells using time lapse images. During migration over a hard ECM, CDH2hiand CDH11hi-L cells represented higher aspect ratio compare to a soft ECM. Aspect ratio relatively found lower in CDH2hi/CDH11hi-L-cell lines than MOCK cells. CDH2hi/CDH11hi-L-cells showed significantly higher migration velocity and Euclidean distance with narrower angle of migratory directions in a cytokine mediated migration. Compared to the MOCK cells, persistence ratio and aspect ratio of migration were also higher in CDH2hi, CDH11hi, and CDH2hi/CDH11hi-L-cells. CDH2hi/CDH11hi-L-cells collectively migrated with the formation of leader and follower cells. In a chemokine mediated hard stiffness of ECM, durotaxis was observed in CDH11hi-L-cells. After 24 hours of intraarticular knee injection in CIA mouse, higher number of CDH2hi/CDH11hi-L-cells invaded into the cartilage than MOCK cells.In vivomigration of CDH2hi/CDH11hi-L-cells was also found towards the chemokine and cartilage mixed matrigel plug in the subcutaneous space of mice.Conclusion:The expression of CDH2 and CDH11 promotes directional migration of synoviocytes, indicating the potential role of these cadherins on the pannus tissues in the invasion into adjacent joint structure in RA.References:[1]Noss EH, Chang SK, Watts GFM, Brenner MB. Cadherin-11 engagement modulates matrix metalloproteinase production by rheumatoid arthritis synovial fibroblasts. Arthritis Rheum. 2011 Dec; 63(12): 3768–3778Disclosure of Interests:None declared
Collapse
|
5
|
Cho BH, Cheon K, Lee KY, Jung YH, Han SW, Park JH, Choi HY, Cho HJ, Park HJ, Nam HS, Heo JH, Lee HS, Kim S, Kim YD. Association between body mass index and stroke severity in acute ischaemic stroke with non-valvular atrial fibrillation. Eur J Neurol 2020; 27:1672-1679. [PMID: 32392368 DOI: 10.1111/ene.14304] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 04/30/2020] [Indexed: 01/22/2023]
Abstract
BACKGROUND AND PURPOSE The objective of this study was to investigate the association between body mass index (BMI) and both initial stroke severity at presentation and functional outcomes after acute ischaemic stroke (AIS) in patients with non-valvular atrial fibrillation (NVAF). METHODS Patients were categorized on the basis of their BMI into underweight (BMI <18.5, n = 111), normal (18.5 ≤ BMI <25, n = 1036) and overweight to obese (BMI ≥25, n = 472) groups. Initial stroke severity was assessed using the National Institutes of Health Stroke Scale (NIHSS) score and functional outcomes were assessed using the modified Rankin Scale score at discharge. The differences in stroke severity and functional outcomes were compared between groups using robust log-linear regression with a Poisson distribution and binary logistic regression analysis. RESULTS A total of 1619 AIS patients with NVAF from six hospitals were included. Compared with the NIHSS scores [median 5, interquartile range (IQR) 2-14] of normal-weight patients, the NIHSS scores (median 9, IQR 4-19) of underweight patients were more likely to be higher, whereas those of overweight to obese patients were lower (median 4, IQR 1-12) (P < 0.001). In terms of functional outcomes after stroke, underweight patients had a higher risk of poor functional outcomes (odds ratio 1.78, 95% confidence interval 1.09-2.56, P = 0.01) but overweight to obese patients had no significant difference in functional outcomes compared with normal-weight patients. CONCLUSION An inverse association was found between BMI and stroke severity in AIS patients with NVAF. This suggests the presence of an obesity paradox for short-term outcomes in patients with NVAF.
Collapse
Affiliation(s)
- B-H Cho
- Department of Neurology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea.,Department of Neurology, Gangnam Severance Hospital, Severance Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, Korea
| | - K Cheon
- Department of Neurology, Gangnam Severance Hospital, Severance Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, Korea
| | - K-Y Lee
- Department of Neurology, Gangnam Severance Hospital, Severance Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, Korea
| | - Y H Jung
- Department of Neurology, Gangnam Severance Hospital, Severance Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, Korea.,Department of Neurology, Changwon Fatima Hospital, Changwon, Korea
| | - S W Han
- Department of Neurology, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - J H Park
- Department of Neurology, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - H-Y Choi
- Department of Neurology, Kyung Hee University School of Medicine, Kyung Hee University Hospital, Gangdong, Seoul, Korea
| | - H-J Cho
- Department of Neurology, Pusan National University Hospital, Pusan National University College of Medicine and Biomedical Research Institute, Busan, Korea
| | - H J Park
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea.,Department of Neurology, Brain Research Institute, Keimyung University School of Medicine, Daegu, Korea
| | - H S Nam
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - J H Heo
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - H S Lee
- Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - S Kim
- Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - Y D Kim
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| |
Collapse
|
6
|
Cho GJ, Choi S, Lee K, Han SW, Kim HY, Ahn K, Hong S, Kim H, Oh M. Women with threatened preterm labour followed by term delivery have an increased risk of spontaneous preterm birth in subsequent pregnancies: a population‐based cohort study. BJOG 2019; 126:901-905. [DOI: 10.1111/1471-0528.15653] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/02/2019] [Indexed: 11/30/2022]
Affiliation(s)
- GJ Cho
- Department of Obstetrics and Gynaecology Korea University College of Medicine Seoul Korea
| | - S‐J Choi
- Department of Obstetrics and Gynaecology Samsung Medical Centre Sungkyunkwan University School of Medicine Seoul Korea
| | - K‐M Lee
- School of Industrial Management Engineering Korea University Seoul Korea
| | - SW Han
- School of Industrial Management Engineering Korea University Seoul Korea
| | - HY Kim
- Department of Obstetrics and Gynaecology Korea University College of Medicine Seoul Korea
| | - K‐H Ahn
- Department of Obstetrics and Gynaecology Korea University College of Medicine Seoul Korea
| | - S‐C Hong
- Department of Obstetrics and Gynaecology Korea University College of Medicine Seoul Korea
| | - H‐J Kim
- Department of Obstetrics and Gynaecology Korea University College of Medicine Seoul Korea
| | - M‐J Oh
- Department of Obstetrics and Gynaecology Korea University College of Medicine Seoul Korea
| |
Collapse
|
7
|
Kim MH, Im YJ, Kil HK, Han SW, Joe YE, Lee JH. Impact of caudal block on postoperative complications in children undergoing tubularised incised plate urethroplasty for hypospadias repair: a retrospective cohort study. Anaesthesia 2016; 71:773-8. [PMID: 27156500 DOI: 10.1111/anae.13463] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/21/2016] [Indexed: 11/26/2022]
Abstract
This study aimed to assess the association between caudal block and postoperative complications after tubularised incised plate urethroplasty. The medical records of 388 paediatric patients who underwent urethroplasty at a tertiary medical centre were analysed retrospectively. Among the 342 patients included, 216 patients received a caudal block and 72 (21.1%) patients suffered surgical complications. The number of patients having surgical complications was significantly greater among patients who received a caudal block than among patients who did not receive a caudal block (53 (24.5%) versus 19 (15.1%), respectively, p = 0.04). Based on multivariate logistic regression analysis, duration of surgery, caudal block and hypospadias types were independent risk factors for the surgical complications. Patients with caudal block had an odds ratio of 2.1 (95% CI, 1.14-3.81, p = 0.018) for the development of postoperative complications compared with patients without caudal block. This analysis demonstrates that caudal block is associated with surgical complications after tubularised incised plate urethroplasty.
Collapse
Affiliation(s)
- M H Kim
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Y J Im
- Department of Urology, Seoul National University Children's Hospital, Seoul, Republic of Korea
| | - H K Kil
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S W Han
- Department of Urology, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Y E Joe
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J H Lee
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| |
Collapse
|
8
|
Jang JE, Kim HP, Lee SH, Lee DW, Lim YJ, Han SW, Kim TY. Abstract A28: NFATC3-PLA2G15 fusion transcript identified by RNA-sequencing promotes tumor progression in colorectal cancer cells. Mol Cancer Ther 2015. [DOI: 10.1158/1535-7163.targ-15-a28] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
In order to identify novel fusion transcripts in colorectal cancer, we carried out paired-end RNA sequencing in 28 human colorectal cancer cell lines. Fusion transcript candidates were identified using ChimeraScan and FusionMap tools. We obtained 1380 candidates having 4 or more read counts and spanning reads. Among the candidates, we selected 27 candidates for validation which harbors genes related to the Wnt signaling pathway or kinases according to KEGG or DAVID. After the targeted gene filtering step, validation using RT-PCR with fusion specific primers finally resulted in 2 intra- and 1 inter-fusion transcripts. Intra-fusion transcripts were NFATC3-PLA2G15 and AKAP13-PDE8A and inter-fusion transcript was KRT8-PKM2 each identified in colo-320, SW-480 and SNU-1235, respectively. The fusion junctions were confirmed by Sanger sequencing. NFATC3-PLA2G15 fusion transcripts consisted of exon 1-9 of NFATC3 (nuclear factor of activated T-cells, cytoplasmic 3) gene and exon 2-6 of the PLA2G15 (Phospholipase A2, Group 5) gene and both located on the same chromosome 16q. NFATC3 is known as transcription factor in the Wnt signaling pathway and regulates function of the target genes like cell proliferation, invasion and epithelial-to-mesenchymal transition (EMT). Under the experiments using siRNA in the colo-320 cell carrying fusion transcript, knockdown of the NFATC3-PLA2G15 fusion transcript decreased mRNA and protein expression of mesenchymal markers, namely vimentin (VIM), Twist-related protein 1 (TWIST1) and fibronectin (FN), and increased epithelial markers, E-cadherin (CDH1) and claudin-1 (CLDN1). Fusion transcripts knockdown also led to decrease of the invasion ability regulated by above markers. Moreover, soft agar assay showed inhibition of colony formation after fusion transcript knockdown. Fusion transcript downregulation also resulted in decrease of cell proliferation and mRNA and protein expression of cyclin D but increase in p27 level. The knockdown did not have influence in the fusion negative cell line. Collectively, these results suggest that the NFATC3-PLA2G15 fusion transcript is involved in invasion and proliferation of colorectal cancer cells.
Citation Format: JE Jang, HP Kim, SH Lee, DW Lee, YJ Lim, SW Han, TY Kim. NFATC3-PLA2G15 fusion transcript identified by RNA-sequencing promotes tumor progression in colorectal cancer cells. [abstract]. In: Proceedings of the AACR-NCI-EORTC International Conference: Molecular Targets and Cancer Therapeutics; 2015 Nov 5-9; Boston, MA. Philadelphia (PA): AACR; Mol Cancer Ther 2015;14(12 Suppl 2):Abstract nr A28.
Collapse
Affiliation(s)
- JE Jang
- 1Cancer Research Institute Seoul National University College of Medicine, seoul, Korea, Republic of
| | - HP Kim
- 1Cancer Research Institute Seoul National University College of Medicine, seoul, Korea, Republic of
| | - SH Lee
- 1Cancer Research Institute Seoul National University College of Medicine, seoul, Korea, Republic of
| | - DW Lee
- 2Department of Internal Medicine, Seoul National University Hospital, seoul, Korea, Republic of
| | - YJ Lim
- 2Department of Internal Medicine, Seoul National University Hospital, seoul, Korea, Republic of
| | - SW Han
- 2Department of Internal Medicine, Seoul National University Hospital, seoul, Korea, Republic of
| | - TY Kim
- 2Department of Internal Medicine, Seoul National University Hospital, seoul, Korea, Republic of
| |
Collapse
|
9
|
Kang JY, Song SH, Yun J, Jeon MS, Kim HP, Han SW, Kim TY. Disruption of CTCF/cohesin-mediated high-order chromatin structures by DNA methylation downregulates PTGS2 expression. Oncogene 2015; 34:5677-84. [PMID: 25703332 DOI: 10.1038/onc.2015.17] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 12/15/2014] [Accepted: 01/16/2015] [Indexed: 12/25/2022]
Abstract
The CCCTC-binding factor (CTCF)/cohesin complex regulates gene transcription via high-order chromatin organization of the genome. De novo methylation of CpG islands in the promoter region is an epigenetic hallmark of gene silencing in cancer. Although the CTCF/cohesin complex preferentially targets hypomethylated DNA, it remains unclear whether the CTCF/cohesin-mediated high-order chromatin structure is affected by DNA methylation during tumorigenesis. We found that DNA methylation downregulates the expression of prostaglandin-endoperoxide synthase 2 (PTGS2), which is an inducible, rate-limiting enzyme for prostaglandin synthesis, by disrupting CTCF/cohesin-mediated chromatin looping. We show that the CTCF/cohesin complex is enriched near a CpG island associated with PTGS2 and that the PTGS2 locus forms chromatin loops through methylation-sensitive binding of the CTCF/cohesin complex. DNA methylation abolishes the association of the CTCF/cohesin complex with the PTGS2 CpG island. Disruption of chromatin looping by DNA methylation abrogates the enrichment of transcriptional components, such as positive elongation factor b, at the transcriptional start site of the PTGS2 locus. These alterations result in the downregulation of PTGS2. Our results provide evidence that CTCF/cohesin-mediated chromatin looping of the PTGS2 locus is dynamically influenced by the DNA methylation status.
Collapse
Affiliation(s)
- J Y Kang
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - S H Song
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - J Yun
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - M S Jeon
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - H P Kim
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - S W Han
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - T Y Kim
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| |
Collapse
|
10
|
Jin Z, Park C, Song KJ, Kang S, Ko KE, Park C, Ko RK, Han SW. Micro-Structural Properties of YBa2Cu3O(7-x)/ZnO Nanorods on SrTiO3. J Nanosci Nanotechnol 2015; 15:642-646. [PMID: 26328417 DOI: 10.1166/jnn.2015.8326] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We examined the local structural and the interfacial properties of YBa2Cu3O(7-x) (YBCO)/ZnO nanorods on SrTiO3 (STO) substrates using various measurements. Vertically aligned ZnO nanorods were synthesized on STO substrates using a catalyst-free metal-organic chemical vapor deposition. YBCO films were deposited ex-situ on the ZnO nanorods/STO templates using a DC magnetron sputtering deposition. X-ray diffraction revealed that the YBCO films were crystallized along their c-axes on the ZnO nanorods/STO templates. Transmission electron microscopy measurements demonstrated that YBCO filled the space between ZnO nanorods and that both interfaces of YBCO/ZnO nanorods and ZnO nanorods/STO were quite clean with no disorder. Polarization-dependent extended X-ray absorption fine structure measurements at the Cu K edge showed extra disorder in the CuO2 planes of YBCO/ZnO nanorods/STO, compared with that of YBCO/STO. The superconductivity transition temperature (T(c)) of YBCO/ZnO nanorods/STO was approximately 50 K whereas that of YBCO/STO was 93 K. The decrease of T(c) of YBCO/ZnO nanorods/STO was ascribed to the structural disorder of CuO2 planes as well as grain boundaries in the YBCO films.
Collapse
|
11
|
Kim JY, Han SW. Doomed tongue twisters. Case Reports 2014; 2014:bcr-2013-202781. [DOI: 10.1136/bcr-2013-202781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|
12
|
Choi SW, Kim MK, Han SW, Han SH, Lee BK, Lee SU, Hur SH, Lim SW, Moon KW, Lee SG, Lee SH, Oh SK, Chea JG, Joo SJ, Jo MC, Hong KS, Ryu KH. Apparent treatment-resistant hypertension among elderly Korean hypertensives: an insight from the HIT registry. J Hum Hypertens 2013; 28:201-5. [PMID: 23985877 DOI: 10.1038/jhh.2013.76] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2013] [Revised: 07/09/2013] [Accepted: 07/10/2013] [Indexed: 11/09/2022]
Abstract
The aim of this study was to determine the clinical characteristics of patients with resistant hypertension (RH) and predictors among elderly Korean hypertensives. This prospective, multi-center, observational study evaluated 2439 elderly hypertensive patients between December 2008 and November 2011, who visited secondary hypertension clinics for high blood pressure (BP). Patients were categorized as resistant if their BP was ≥140/90 mm Hg and if they reported using antihypertensive medications from three different drug classes, including a diuretic or drugs from ≥4 antihypertensive drug classes, regardless of BP. Characteristics of patients with RH were compared with those of patients who were controlled with one or two antihypertensive medications after 6-month antihypertensive treatment. In comparison with 837 patients with non-RH, 404 patients with RH were more likely to be aware of their status of high BP before enrollment and have a high baseline systolic BP ≥160 mm Hg, microalbuminuria, high body mass index (BMI) ≥24 kg m(-2) and diabetes mellitus (DM). In drug-naive patients, awareness of hypertension at baseline was the only independent predictor for RH. In elderly Korean hypertensives, BMI (≥24 kg m(-2)), baseline systolic BP (≥160 mm Hg), microalbuminuria, DM and awareness of hypertension showed an association with RH.
Collapse
Affiliation(s)
- S-W Choi
- Division of Cardiology, Dongtan Sacred Heart Hospital, Hallym University, Hwaseong, Korea
| | - M-K Kim
- Division of Cardiology, Dongtan Sacred Heart Hospital, Hallym University, Hwaseong, Korea
| | - S W Han
- Department of Internal Medicine, Hangang Sacred Heart Hospital, Hallym University, Seoul, Korea
| | - S H Han
- Division of Cardiology, Gachon University Gil Hospital, Incheon, Korea
| | - B K Lee
- Division of Cardiology, Gangnam Severance Hospital, Yonsei University, Seoul, Korea
| | - S U Lee
- Department of Internal Medicine, Gwangju Christian Hospital, Gwangju, Korea
| | - S-H Hur
- Division of Cardiology, Daejeon St. Mary's Hospital, The Catholic University of Korea, Daejeon, Korea
| | - S W Lim
- Division of Cardiology, Bundang Cha Hospital, Cha University, Seongnam, Korea
| | - K W Moon
- Division of Cardiology, St. Vincent's Hospital, The Catholic University of Korea, Suwon, Korea
| | - S G Lee
- Division of Cardiology, Ulsan University Hospital, Ulsan, Korea
| | - S H Lee
- Department of Internal Medicine, Dongkang Medical Center, Ulsan, Korea
| | - S K Oh
- Division of Cardiology, Wonkwang University School of Medicine and Hospital, Iksan, Korea
| | - J G Chea
- Division of Cardiology, Chonbuk National University Hospital, Jeonju, Korea
| | - S J Joo
- Division of Cardiology, Jeju National University Hospital, Jeju, Korea
| | - M C Jo
- Division of Cardiology, Chungbuk National University Hospital, Cheongju, Korea
| | - K-S Hong
- Division of Cardiology, Chooncheon Sacred Heart Hospital, Hallym University, Chooncheon, Korea
| | - K-H Ryu
- Division of Cardiology, Dongtan Sacred Heart Hospital, Hallym University, Hwaseong, Korea
| | | |
Collapse
|
13
|
Choi SW, Kim MK, Han SW, Ryu KH. The proportion of isolated systolic hypertension is lower in Korean elderly hypertensives. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p3240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
14
|
El Minshawy O, Ghabrah T, Hamza A, Fadl A, Adam M, El Bassuoni E, Saran R, Tilea A, Sands R, Kiser M, Han SW, Stack A, Finkelstein F, Eisele G, Kotanko P, Levin N, Gillespie B, Krane V, Bhuvanakrishna T, Burnapp L, Hilton R, Sibley-Allen C, Blake G, Goldsmith D, Taylor-Stokes G, Ozbay AB, Sayers J, Marx SE, Yanai M, Okada K, Takeuchi K, Matsuyama K, Nitta K, Takahashi S, Delanaye P, Cavalier E, Moranne O, Lutteri L, Bruyere O, Krzesinski JM, Silverwood RJ, Richards M, Pierce M, Hardy R, Sattar N, Ferro C, Savage C, Kuh D, Nitsch D, Shin JH, Kim SH, Yu SH, Oberdhan D, Krasa HB, Cheng R, Hays RD, Chapman A, Perrone R, Cole JC, Tilea A, Hedgeman E, Steffick D, Rein-Weston A, Banerjee T, Powe N, Rios-Burrows N, Williams D, Saran R, Nagasawa Y, Yamamoto R, Shinzawa M, Hasuike Y, Kuragano T, Rakugi H, Isaka Y, Nakanishi T, Iseki K, Yamagata K, Tsuruya K, Yoshida H, Fujimoto S, Asahi K, Watanabe T, Moriyama T, Warren S, Rutherford P, Van Den Bosch J, Kusztal M, Trafidlo E, Madziarska K, Augustyniak-Bartosik H, Golebiowski T, Krajewska M, Rymaszewska J, Weyde W, Klinger M, Sato Y, Fujimoto S, Konta T, Iseki K, Moriyama T, Yamagata K, Tsuruya K, Yoshida H, Asahi K, Kurahashi I, Ohashi Y, Watanabe T, Elsayed I, Khwaja A, Siddall S, Mortimer F, Ando M, Hara M, Tsuchiya K, Nitta K, Hiwatashi A, Hagiwara M, Tsuruoka S, Usui J, Nagai K, Kai H, Morito N, Saito C, Yoh K, Hosojima M, Saito A, Yamagata K, Stack AG, Chernenko T, Abdalla AA, Saran R, Nguyen HT, Hedgeman E, Hannigan A, Casserly LF, Abd ElHafeez S, Gad Z, Sallam S, Tripepi G, Zoccali C, ElWakil H, Awad N, Sestigiani E, Tedesco D, Mandreoli M, Ubaldi G, Olmeda F, Monti M, Rucci P, Gibertoni D, Santoro A, Zaza G, Bernich P, Lupo A, Rogacev KS, Seiler S, Zawada AM, Fliser D, Heine GH, Douros A, Schaeffner E, Jakob O, Kreutz R, Ebert N, Gerasimovska Kitanovska B, Bogdanovska S, Severova Andreevska G, Gerasimovska V, Sikole A, Rakov V, Schiepe F, Rutkowski B, Zdrojewski T, Bandosz P, Zdrojewski L, Rutkowski M, Gaciong Z, Solnica B, Jedrzejczyk T, Krol E, Wyrzykowski B, Nacak H, van Diepen M, de Goeij MCM, Dekker FW, Suzuki K, Konta T, Kamei K, Sato H, Kudo K, Nagasawa A, Ichikawa K, Kubota I, Clavero R, Vasquez N, Tapia B, Aldunate T, Heleniak Z, Cieplinska M, Pryczkowska M, Szychlinski T, Bartosinska E, Wiatr H, Kotlowska H, Tylicki L, Rutkowski B, So B, Methven S, Hair MD, Jardine AG, MacGregor MS, Jankowski V, Schulz A, Zidek W, Jankowski J, Holmar J, Fridolin I, Uhlin F, Luman M, Fernstrom A, Rodriguez I, Ortega O, Hinostroza J, Cobo G, Gallar P, Mon C, Herrero JC, Ortiz M, Di Giogia C, Oliet A, Vigil A, Premuzic V, Vrdoljak A, Fucek M, Karanovic S, Vukovic-Lela I, Kos J, Fistrek M, Dika Z, Cvitkovic A, Juric D, Laganovic M, Rogic D, Katalinic L, Jelakovic B, Vrdoljak A, Fucek M, Premuzic V, Karanovic S, Vukovic Lela I, Kos J, Fistrek M, Cvitkovic A, Jelakovic B, Deger SM, Onec K, Derici UB, Guz G, Ozturk MA, Sindel S, Arinsoy T, Hojs N, Bevc S, Hojs R, Ekart R, Koycheva R, Cholakov V, Penev M, Andreev J, Iliev R, Macia M, Jarque A, del Castillo N, Mendez ML, Martin JA, Tevar E, Bermudez C, NasrAllah MM, Osman N, Osanlou O, Greer AB, Morgan H, Archer T, Ryan N, Khalil A, Ahmed S, Melemadathil S, Ashok AV, El-Wakil HS, Asaad SH, Nawar MM, Adam AG, Abdel-Gawad MM. Epidemiology - renal outcomes. Nephrol Dial Transplant 2013; 28:i140-i154. [DOI: 10.1093/ndt/gft109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023] Open
|
15
|
Jeong ES, Park C, Jin Z, Yoo J, Yi GC, Han SW. Orientation-dependent local structural properties of Zn(1-x)Mg(x)O nanorods studied by extended X-ray absorption fine structure. J Nanosci Nanotechnol 2013; 13:1880-1883. [PMID: 23755611 DOI: 10.1166/jnn.2013.6966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The orientation-dependent structural properties of Zn(1-x)Mg(x)O nanorods with different Mg concentrations were investigated quantitatively using polarization-dependent extended X-ray absorption fine structure (EXAFS) measurements at the Zn K edge. Vertically-aligned Zn(1-x)Mg(x)O nanorods were synthesized on Si substrates using catalyst free metal organic chemical vapor deposition. Polarization-dependent EXAFS measurements showed that Mg ions mainly occupied the Zn sites of the nanorods. EXAFS revealed that the distance between Zn-Mg pairs in all directions is - 0.2 angstroms shorter than that of Zn-Zn pairs and that there is a substantial amount of disorder in the Mg sites of the nanorods, independent of Mg concentrations.
Collapse
Affiliation(s)
- E S Jeong
- Department of Physics Education, Institute of Fusion Science, Chonbuk National University, Jeonju 561-756, Korea
| | | | | | | | | | | |
Collapse
|
16
|
Nam HS, Park JH, Han SW. Artery of foramen rotundum: guilty or innocent? Case Reports 2013; 2013:bcr-2012-008301. [DOI: 10.1136/bcr-2012-008301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
|
17
|
Im SA, Oh DY, Keam B, Lee KS, Ahn JH, Sohn J, Ahn JS, Kim JH, Lee MH, Lee KE, Kim HJ, Lee KH, Han SW, Kim SY, Kim SB, Im YH, Ro J, Park HS. Abstract PD09-05: Single nucleotide polymorphism of XRCC1 which participates in DNA repair mechanism predicts clinical outcome in relapsed or metastatic breast cancer patients treated with S1 and oxaliplatin chemotherapy: Results from multicenter prospective study (TORCH_KCSG BR07-03). Cancer Res 2012. [DOI: 10.1158/0008-5472.sabcs12-pd09-05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: S1 and oxaliplatin (SOX) combination chemotherapy is an effective regimen in anthracycline and taxane pretreated metastatic breast cancer (MBC) patients with manageable toxicities (KCSG BR07-03, SABCS 2011 #Abst P3-16-06). The aim of this study was to investigate the association of the single nucleotide polymorphisms (SNPs) and clinical outcome in MBC treated with SOX chemotherapy.
Patients and Methods: A total of 87 MBC patients previously treated with or resistant to anthracycline and taxane chemotherapy were enrolled in this prospective multicenter trial. The patients received S-1 80mg/m2/day (day 1–14) and oxaliplatin 130 mg/m2 (day 1) every 3 weeks till progression. Among the 87 patients, 77 patients were available for SNP analysis. Germline DNA from peripheral blood (PB) mononuclear cells was extracted. SNPs in 4 genes from pathways that may influence cellular sensitivity to S1 and oxaliplatin (TS, ERCC, XPD, and XRCC) were genotyped from PB sample using PCR-restriction fragment length polymorphism.
Results: Overall response rate (RR) was 38.5% (95% CI: 27.7–49.3) and disease control rate was 67.9% (95% CI:57.5–78.3) to SOX. Median time-to-progression (TTP) and overall survival (OS) were 6.0 mo (95% CI: 5.1–6.9 mo) and 19.4 mo (95% CI: not estimated), respectively. XRCC1 Arg194Trp SNP which participates in DNA repair mechanism showed correlation with the clinical outcome. RR was tend to higher in XRCC1 Arg194Trp CC genotype compared with CT or TT genotype (50.0 % vs 35.1% or 12.5%, P = 0.121). TTP of patients with CC genotype in XRCC1 Arg194Trp was significantly longer than the TTP of patients with CT or TT genotype (median TTP: 6.4 mo in CC, 5.9 mo in CT, 3.0 mo in TT, P = 0.007) as well as overall survival (OS) (median OS: not reached in CC, 13.9 mo in CT, 7.1 mo in TT, P = 0.006). After adjusting for hormone receptor status, performance status, and visceral involvement, prognostic value of XRCC1 Arg194Trp SNP remained significant (Hazard Ratio=1.322 and 4.484, P = 0.016). Other SNPs were not significantly associated with survival or toxicities.
Conclusion: XRCC1 Arg194Trp SNP is associated with clinical outcome of MBC patients treated with SOX chemotherapy. Further studies of the relationship between germline polymorphisms in XRCC1 and functional mechanism researches are warranted.
Citation Information: Cancer Res 2012;72(24 Suppl):Abstract nr PD09-05.
Collapse
Affiliation(s)
- S-A Im
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - D-Y Oh
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - B Keam
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - KS Lee
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - J-H Ahn
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - J Sohn
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - JS Ahn
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - JH Kim
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - MH Lee
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - KE Lee
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - HJ Kim
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - K-H Lee
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - SW Han
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - S-Y Kim
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - SB Kim
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - Y-H Im
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - J Ro
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - H-S Park
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| |
Collapse
|
18
|
Pereira Lopes FR, Martin PKM, Frattini F, Biancalana A, Almeida FM, Tomaz MA, Melo PA, Borojevic R, Han SW, Martinez AMB. Double gene therapy with granulocyte colony-stimulating factor and vascular endothelial growth factor acts synergistically to improve nerve regeneration and functional outcome after sciatic nerve injury in mice. Neuroscience 2012; 230:184-97. [PMID: 23103791 DOI: 10.1016/j.neuroscience.2012.10.025] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Revised: 10/09/2012] [Accepted: 10/10/2012] [Indexed: 12/17/2022]
Abstract
Peripheral-nerve injuries are a common clinical problem and often result in long-term functional deficits. Reconstruction of peripheral-nerve defects is currently undertaken with nerve autografts. However, there is a limited availability of nerves that can be sacrificed and the functional recovery is never 100% satisfactory. We have previously shown that gene therapy with vascular endothelial growth factor (VEGF) significantly improved nerve regeneration, neuronal survival, and muscle activity. Our hypothesis is that granulocyte colony-stimulating factor (G-CSF) synergizes with VEGF to improve the functional outcome after sciatic nerve transection. The left sciatic nerves and the adjacent muscle groups of adult mice were exposed, and 50 or 100 μg (in 50 μl PBS) of VEGF and/or G-CSF genes was injected locally, just below the sciatic nerve, and transferred by electroporation. The sciatic nerves were transected and placed in an empty polycaprolactone (PCL) nerve guide, leaving a 3-mm gap to challenge nerve regeneration. After 6 weeks, the mice were perfused and the sciatic nerve, the dorsal root ganglion (DRG), the spinal cord and the gastrocnemius muscle were processed for light and transmission electron microscopy. Treated animals showed significant improvement in functional and histological analyses compared with the control group. However, the best results were obtained with the G-CSF+VEGF-treated animals: quantitative analysis of regenerated nerves showed a significant increase in the number of myelinated fibers and blood vessels, and the number of neurons in the DRG and motoneurons in the spinal cord was significantly higher. Motor function also showed that functional recovery occurred earlier in animals receiving G-CSF+VEGF-treatment. The gastrocnemius muscle showed an increase in weight and in the levels of creatine phosphokinase, suggesting an improvement of reinnervation and muscle activity. These results suggest that these two factors acted synergistically and optimized the nerve repair potential, improving regeneration after a transection lesion.
Collapse
Affiliation(s)
- F R Pereira Lopes
- Programa de Neurociência Básica e Clínica, Instituto de Ciências Biomédicas, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, RJ, Brazil
| | | | | | | | | | | | | | | | | | | |
Collapse
|
19
|
Han SW, Sa KH, Kim SI, Lee SI, Park YW, Lee SS, Yoo WH, Soe JS, Nam EJ, Lee J, Park JY, Kang YM. CCR5 gene polymorphism is a genetic risk factor for radiographic severity of rheumatoid arthritis. ACTA ACUST UNITED AC 2012; 80:416-23. [PMID: 22924548 DOI: 10.1111/j.1399-0039.2012.01955.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2012] [Revised: 07/11/2012] [Accepted: 08/06/2012] [Indexed: 11/29/2022]
Abstract
The chemokine receptor [C-C chemokine receptor 5 (CCR5)] is expressed on diverse immune effecter cells and has been implicated in the pathogenesis of rheumatoid arthritis (RA). This study sought to determine whether single-nucleotide polymorphisms (SNPs) in the CCR5 gene and their haplotypes were associated with susceptibility to and severity of RA. Three hundred fifty-seven patients with RA and 383 healthy unrelated controls were recruited. Using a pyrosequencing assay, we examined four polymorphisms -1118 CTAT(ins) (/del) (rs10577983), 303 A>G (rs1799987), 927 C>T (rs1800024), and 4838 G>T (rs1800874) of the CCR5 gene, which were distributed over the promoter region as well as the 5' and 3' untranslated regions. No significant difference in the genotype, allele, and haplotype frequencies of the four selected SNPs was observed between RA patients and controls. CCR5 polymorphisms of -1118 CTAT(del) (P = 0.012; corrected P = 0.048) and 303 A>G (P = 0.012; corrected P = 0.048) showed a significant association with radiographic severity in a recessive model, and, as a result of multivariate logistic regression analysis, were found to be an independent predictor of radiographic severity. When we separated the erosion score from the total Sharp score, the statistical significance of CCR5 polymorphisms showed an increase; -1118 CTAT(ins) (/del) (P = 0.007; corrected P = 0.028) and 303 A>G (P = 0.007; corrected P = 0.028). Neither SNPs nor haplotypes of the CCR5 gene showed a significant association with joint space narrowing score. These results indicate that genetic polymorphisms of CCR5 are an independent risk factor for radiographic severity denoted by modified Sharp score, particularly joint erosion in RA.
Collapse
Affiliation(s)
- S W Han
- Department of Internal Medicine, Daegu Fatima hospital, Daegu, Republic of Korea
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Im SA, Oh DY, Lee KS, Ahn JH, Shon J, Ahn JS, Kim JH, Han SW, Lee MH, Lee KE, Lee K, Kim HJ, Keam B, Kim SY, Kim SB, Im YH, Ro J, Park HS. P3-16-06: Phase II Trial of TS-1 in Combination with Oxaliplatin (SOX) in Patients with Metastatic Breast Cancer (MBC) Previously Treated with Anthracycline and Taxane Chemotherapy [TORCH] [Korean Cancer Study Group (KCSG) BR07-03]. Cancer Res 2011. [DOI: 10.1158/0008-5472.sabcs11-p3-16-06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background
Oxaliplatin, a platinum analogue, is an active drug in advanced anthracycline and taxane-pretreated breast cancer patients as a single agent and with 5-fluorouracil (5-FU) combination. TS-1 was developed by the scientific theory of both potentiating antitumor activity of 5-FU and reducing gastrointestinal toxicity. This trial was performed to evaluate the efficacy and safety of TS-1 in combination with oxaliplatin in metastatic breast cancer (MBC) patients previously treated with anthracycline and taxane chemotherapy.
Methods: Between October 2007 and October 2009, MBC patients were enrolled in this prospective multicenter trial. Eligible criteria included age ≥18 years, at least one measurable lesion, prior treatment with anthracycline and taxane chemotherapy, and ECOG Performance Status 0–2. TS-1 40 mg/m2 b.i.d. on days 1–14 with oxaliplatin 130 mg/m2 on day 1 were administered every 3 weeks till disease progression. Primary end-point was response rate, and secondary end-points were time-to-progression (TTP), overall survival (OS), duration of response (DOR) and toxicities. Response was evaluated every 6 weeks according to the RECIST criteria v. 1.0 and toxicity was assessed with NCICTCAE v.3.0.(ClinicalTrials.gov identifier NCT00527930).
Results: A total of 87 patients were enrolled. Median age was 48 years (range 30–71 years). Nineteen patients (21.8%) had de novo stage IV and 68 patients (78.2%) had recurrent disease. Thirty-five patients (40.2%) received two-lines of prior chemotherapy in palliative setting. Forty-eight patients (55.2%) had ≥ 3 disease sites. Fifty-four patients (62.1%) were hormone receptor positive, and 25 patients (28.7%) were triple negative. Five patients received prior anti-HER2 therapy. A total of 525 cycles were administered (median 6 cycles, range: 1 ∼ 22+ cycle). In per-protocol analysis, overall response rate was 38.5% (95% CI: 27.7−49.3) (CR 0%, PR 38.5%) and disease control rate (CR, PR, and SD) was 67.9% (95% CI: 57.5−78.3). Median TTP, OS, and DOR were 6.0 months (95% CI: 5.1−6.9 months), 19.4 months (95% CI: not estimated), 6.6 months (95% CI: 3.7−9.6 months), respectively. RR was not different by triple negativity (39.1% in TNBC vs. 38.2% in non-TNBC, P=0.361). TTP was not different according to the number of prior chemotherapy regimens. Reported grade 3 or 4 toxicities (per cycle) were neutropenia (10.3%), thrombocytopenia (5.5%), diarrhea (1.9%), vomiting (1.9%), and stomatitis (0.2%). There was no treatment-related death.
Conclusions: SOX is an effective regimen in anthracycline and taxane pretreated MBC patients with manageable toxicities.
Citation Information: Cancer Res 2011;71(24 Suppl):Abstract nr P3-16-06.
Collapse
Affiliation(s)
- S-A Im
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - D-Y Oh
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - KS Lee
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - J-H Ahn
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - J Shon
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - JS Ahn
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - JH Kim
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - SW Han
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - MH Lee
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - KE Lee
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - K Lee
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - HJ Kim
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - B Keam
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - S-Y Kim
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - SB Kim
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - YH Im
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - J Ro
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - H-S Park
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| |
Collapse
|
21
|
Kim SH, Chang Y, Kim JH, Song HJ, Seo J, Kim SH, Han SW, Nam EJ, Choi TY, Lee SJ, Kim SK. Insular cortex is a trait marker for pain processing in fibromyalgia syndrome--blood oxygenation level-dependent functional magnetic resonance imaging study in Korea. Clin Exp Rheumatol 2011; 29:S19-S27. [PMID: 21813055] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2010] [Accepted: 03/08/2011] [Indexed: 05/31/2023]
Abstract
OBJECTIVES To investigate the variability in cerebral activation according to pain intensity and the association between variability in cerebral activation and clinical features in patients with fibromyalgia syndrome (FMS) using functional magnetic resonance imaging (fMRI). METHODS Nineteen FMS female patients and 22 age-matched healthy female controls were enrolled in this study. Changes in cerebral activation area were measured using blood oxygenation level-dependent (BOLD) contrast fMRI after application of both medium and high pressure stimuli to the left thumbnail bed. RESULTS We identified the insular cortex (IC) and superior temporal gyrus (STG) as regions of interest (ROIs) in this analysis. Cerebral activation at the bilateral IC in response to high pressure stimuli was significantly greater in FMS patients than it was in the controls, whereas there were no differences in BOLD signal changes in the STG regions between FMS patients and controls, irrespective of pain level. Prominent signal changes at both ROIs in FMS patients were noted between high and medium pressure (p<0.001 contralateral IC, p=0.001 for ipsilateral IC, p=0.008 for contralateral STG, and p=0.049 for ipsilateral STG). BOLD signal changes on the contralateral STG after medium stimuli were correlated with tender point count (r=0.586, p=0.013). CONCLUSIONS This study revealed more distinct signal variability in the ICs in FMS patients than in those of controls in response to high pressure stimuli. The IC can therefore be considered to be a region susceptible to pain perception in FMS patients.
Collapse
Affiliation(s)
- S-H Kim
- Division of Rheumatology, Inje University College of Medicine, Haeundae Paik Hospital, Busan, Korea
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Han SW, Marois R. Involuntary attention improves perception by resolving competition. J Vis 2011. [DOI: 10.1167/11.11.118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
|
23
|
Pereira Lopes FR, Lisboa BCG, Frattini F, Almeida FM, Tomaz MA, Matsumoto PK, Langone F, Lora S, Melo PA, Borojevic R, Han SW, Martinez AMB. Enhancement of sciatic nerve regeneration after vascular endothelial growth factor (VEGF) gene therapy. Neuropathol Appl Neurobiol 2011; 37:600-12. [DOI: 10.1111/j.1365-2990.2011.01159.x] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
24
|
Abstract
Lung carcinoma is the leading cause of carcinoma death in the world. Despite recent advances in understanding the molecular biology of lung cancer and the introduction of new therapeutic agents for its treatment, its dismal 5-year survival rate has not changed substantially. Clinical approaches have not significantly improved the survival of patients with advanced lung cancer. However, recent discoveries about the molecular mechanisms responsible for lung cancer initiation and proliferation have unveiled new targets for therapy. One of the hallmark features of cancer cells is their ability to evade programmed cell death or apoptosis. Alterations in pro- and anti-apoptotic pathways are common in cancer cells and defects in regulation of apoptosis have been implicated in both lung tumorigenesis and drug resistance. Thus, targeting apoptosis through the direct or indirect manipulation of the pro-apoptotic machinery offers a novel strategy for treatment. This mini review summaries the molecular events that contribute to drug-induced apoptosis and how lung tumors evade apoptotic death followed by an analysis of the implications for treatment.
Collapse
Affiliation(s)
- S W Han
- Division of Pulmonary, Critical Care and Sleep Disorders Medicine, Louisville School of Medicine, Louisville, KY 40202, USA.
| | | |
Collapse
|
25
|
Morales AP, Carvalho ACP, Monteforte PT, Hirata H, Han SW, Hsu YT, Smaili SS. Endoplasmic Reticulum Calcium Release Engages Bax Translocation in Cortical Astrocytes. Neurochem Res 2011; 36:829-38. [DOI: 10.1007/s11064-011-0411-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/13/2011] [Indexed: 11/25/2022]
|
26
|
Hong JY, Han SW, Kim WO, Kim EJ, Kil HK. Effect of dexamethasone in combination with caudal analgesia on postoperative pain control in day-case paediatric orchiopexy. Br J Anaesth 2010; 105:506-10. [PMID: 20659915 DOI: 10.1093/bja/aeq187] [Citation(s) in RCA: 124] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J-Y Hong
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Severance Hospital, 250 Seongsanno, Seodaemun-gu, 120-752 Seoul, Republic of Korea
| | | | | | | | | |
Collapse
|
27
|
Sacramento CB, Moraes JZ, Denapolis PMA, Han SW. Gene expression promoted by the SV40 DNA targeting sequence and the hypoxia-responsive element under normoxia and hypoxia. Braz J Med Biol Res 2010; 43:722-7. [PMID: 20640386 DOI: 10.1590/s0100-879x2010007500064] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2009] [Accepted: 06/30/2010] [Indexed: 11/21/2022] Open
Abstract
The main objective of the present study was to find suitable DNA-targeting sequences (DTS) for the construction of plasmid vectors to be used to treat ischemic diseases. The well-known Simian virus 40 nuclear DTS (SV40-DTS) and hypoxia-responsive element (HRE) sequences were used to construct plasmid vectors to express the human vascular endothelial growth factor gene (hVEGF). The rate of plasmid nuclear transport and consequent gene expression under normoxia (20% O2) and hypoxia (less than 5% O2) were determined. Plasmids containing the SV40-DTS or HRE sequences were constructed and used to transfect the A293T cell line (a human embryonic kidney cell line) in vitro and mouse skeletal muscle cells in vivo. Plasmid transport to the nucleus was monitored by real-time PCR, and the expression level of the hVEGF gene was measured by ELISA. The in vitro nuclear transport efficiency of the SV40-DTS plasmid was about 50% lower under hypoxia, while the HRE plasmid was about 50% higher under hypoxia. Quantitation of reporter gene expression in vitro and in vivo, under hypoxia and normoxia, confirmed that the SV40-DTS plasmid functioned better under normoxia, while the HRE plasmid was superior under hypoxia. These results indicate that the efficiency of gene expression by plasmids containing DNA binding sequences is affected by the concentration of oxygen in the medium.
Collapse
Affiliation(s)
- C B Sacramento
- Centro Interdisciplinar de Terapia Gênica, Universidade Federal de São Paulo
| | | | | | | |
Collapse
|
28
|
Todd J, Han SW, Harrison S, Marois R. The neural correlates of visual working memory consolidation: A time-resolved fMRI study. J Vis 2010. [DOI: 10.1167/9.8.602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
|
29
|
|
30
|
Han SW, Kim MS. Spatial working memory load impairs signal enhancement, not attentional orienting. J Vis 2010. [DOI: 10.1167/6.6.126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
|
31
|
|
32
|
Lee JD, Han SW, Miyawaki N, Gomi H. Comment on "temperature-dependent localized excitations of doped carriers in superconducting diamond". Phys Rev Lett 2009; 102:199701-199702. [PMID: 19519005 DOI: 10.1103/physrevlett.102.199701] [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] [Received: 10/29/2008] [Indexed: 05/27/2023]
Abstract
A Comment on the Letter by K. Ishizaka et al., Phys. Rev. Lett. 100, 166402 (2008)10.1103/PhysRevLett.100.166402. The authors of the Letter offer a Reply.
Collapse
|
33
|
Hwang C, Lee D, Han SW, Kang JS. Quantum-well states in Cu/Fe/Cu(111) coupled to the bulk band through the barrier. J Phys Condens Matter 2008; 20:265007. [PMID: 21694356 DOI: 10.1088/0953-8984/20/26/265007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The quantum-well state (QWS) has been observed on the surface of Cu/Fe/Cu(111). The confinement of the states on the top Cu layers is due to the minority spin barrier of the Fe underlayer. This QWS coexists with the Shockley surface state, which is observed on a clean Cu(111) surface. The resonant behavior of this QWS versus photon energy results from the vertical transition to the unoccupied bulk band, which is possibly due to the coupling between the overlayer Cu and the substrate Cu(111).
Collapse
Affiliation(s)
- Chanyong Hwang
- Advanced Industrial Technology Group, Division of Advanced Technology, Korea Research Institute of Standards and Science, Daejeon 305-600, Korea
| | | | | | | |
Collapse
|
34
|
Lee JD, Han SW, Inoue J. Sharp contrasts in low-energy quasiparticle dynamics of graphite between Brillouin zone K and H points. Phys Rev Lett 2008; 100:216801. [PMID: 18518624 DOI: 10.1103/physrevlett.100.216801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2007] [Indexed: 05/26/2023]
Abstract
The low-energy quasiparticle (QP) dynamics of graphite are governed by a coupling with the E(2g) longitudinal optical phonon of omega(LO) approximately 200 meV, which is found to dramatically depend on the electronic band dispersion epsilon(k). A discontinuity of the QP linewidth develops near omega(LO) for a linear band with a quadratic band top [near the Brillouin zone (BZ) K point], while it disappears for a pure linear band (near the BZ H point). It is also found that the effective electron-phonon coupling near the K point is stronger than near the H point by more than 50%. This finding makes possible a consistent understanding of recent angle-resolved photoemission observations near the K point.
Collapse
Affiliation(s)
- J D Lee
- School of Materials Science, Japan Advanced Institute of Science and Technology, Ishikawa 923-1292, Japan
| | | | | |
Collapse
|
35
|
Abstract
We describe a case of esophageal perforation that resulted from a fishbone. A 71-year-old man had had a fishbone impacted in the lower esophagus for 2 days. At presentation, the bone was dislodged at endoscopy; one round opening in a deep ulceration was detected when the fishbone was removed. The perforation was closed by endoscopic hemoclipping, after the removal of the fishbone. A thoracic computed tomography revealed air around the esophagus, aorta and bronchus and the presence of a pleural effusion. These findings suggested mediastinal emphysema and mediastinitis due to the esophageal perforation after the removal of the fishbone. Esophagography revealed a focal esophageal defect and linear contrast leakage at the distal esophagus. The mediastinal emphysema and pleural effusion successfully resolved after the endoscopic hemoclip application and conservative management of the perforation.
Collapse
Affiliation(s)
- H Y Sung
- Division of Gastroenterology, Department of Internal Medicine, Catholic University of Korea, Seoul, Korea
| | | | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Helfenstein T, Ihara SSM, Santos AO, Relvas WGM, Souza DRS, Scartezini M, Han SW, Fonseca MIH, Pinto LDESA, Fonseca FAH, Izar MCO. D 003 CAN GENETIC MARKERS PREDICT CORONARY RISK IN TYPE 2 DIABETES OVER AND ABOVE CLASSIC RISK FACTORS? ATHEROSCLEROSIS SUPP 2007. [DOI: 10.1016/s1567-5688(07)71894-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
37
|
Abstract
OBJECTIVE To determine whether there is a relationship between aortic plaques and intracranial (IC) atherosclerosis. METHODS We reviewed 922 patients with stroke who had both transesophageal echocardiography and cerebral angiography. The plaques of these patients were classified as either complex aortic plaques (CAP), which protruded > or =4 mm or were present as mobile lesions in the proximal aorta, or simple aortic plaques (SAP), which were <4 mm or present in the descending aorta. Cerebral artery atherosclerosis was classified as either an IC or extracranial (EC) atherosclerosis. RESULTS Among the 922 patients, we found aortic plaques in 237 patients (26%). There were 111 (47%) patients of SAP, 74 (31%) patients with CAP, and 52 (22%) patients that had both SAP and CAP. Angiography showed IC or EC atherosclerosis in 511 patients (55%). The presence of aortic plaques was significantly associated with IC or EC atherosclerosis. The significance appeared to be due to the strong association between the presence of SAP and IC atherosclerosis (51% SAP vs 35% no plaques; odds ratio = 1.94, 95% CI: 1.17 to 3.21). In the multiple logistic regression analysis, SAP were independent predictors of IC atherosclerosis CONCLUSIONS The presence of simple aortic plaques may be a marker of advanced vascular disease. Detection of simple aortic plaques during transesophageal echocardiography may have clinical implications because patients with these plaques frequently had concomitant intracranial atherosclerosis, a risk factor for stroke.
Collapse
Affiliation(s)
- H S Nam
- Department of Neurology and National Core Research Center for Nanomedical Technology, Yonsei University College of Medicine, Seoul, Korea
| | | | | | | | | | | | | | | |
Collapse
|
38
|
Han SW, Kim TY, Lee KW, Oh DY, Lee SH, Kim DW, Chung DH, Im SA, Heo DS, Bang YJ. EGFR mutation and intron 1 CA repeat polymorphism as predictive markers of gefitinib responsiveness in non-small cell lung cancer (NSCLC). J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.7173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
7173 Background: EGFR mutation is significantly associated with objective response and prolonged survival in NSCLC patients treated with gefitinib. However, presence of mutant nonresponses and nonmutant responses mandates investigation of other molecular markers for more effective prediction of gefitinib sensitivity in NSCLC. It is unclear whether low CA repeat number in EGFR intron 1 has such a predictive role. Methods: Advanced NSCLC patients received gefitinib 250mg/day. EGFR mutation in exons 18 - 21 were identified by direct sequencing of PCR products of DNA extracted from archival paraffin embedded tissue. Number of CA repeat in intron 1 of EGFR was determined by GeneScan with tumoral DNA. Baseline characteristics, mutational status, CA repeat number and efficacy of gefitinib were analyzed in respect to each other. Results: To date, 73 patients were evaluable for EGFR mutation, CA repeat and gefitinib responsiveness. 14 patients (19.2%) harbored EGFR mutation (7 deletion in exon 19, 4 L858R, 1 L861Q, 1 G719A, and 1 insertion in exon 20). Most common CA repeat genotype was 20/20 repeat (31 patients) followed by 16/20 repeat (15 patients). Patients were classified as having either low CA repeat (sum of both allele ≤ 37 repeats) or high CA repeat (≥ 38 repeats). 34 patients (46.6%) had low repeat, whereas 39 patients (53.4%) had high repeat. Patients with EGFR mutation showed better objective response (response rate [RR] 57.1% vs. 10.2% in wild type [WT], p < 0.001), time-to-progression (TTP) (p = 0.031, median 5.1 vs. 1.9 months in WT), and overall survival (OS) (p = 0.051, median14.5 vs. 7.4 months in WT). In the whole study population, low CA repeat was not associated with RR (p = 0.38), TTP (p = 0.15), or OS (p = 0.51). However, in the 59 patients without an EGFR mutation, patients with low CA repeat tended to have better objective response (RR 17.2% [5/29] in low repeat vs. 3.3% [1/30] in high repeat, p = 0.10) and significantly better TTP (p = 0.019, median 2.2 months in low repeat vs. 1.2 months in high repeat). Conclusions: Our results suggest that low number of CA repeats in EGFR intron 1 may have possible role in prediction of gefitinib responsiveness when analyzed together with EGFR mutational status. [Table: see text]
Collapse
Affiliation(s)
- S. W. Han
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - T. Y. Kim
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - K. W. Lee
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - D. Y. Oh
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - S. H. Lee
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - D. W. Kim
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - D. H. Chung
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - S. A. Im
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - D. S. Heo
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Y. J. Bang
- Seoul National University College of Medicine, Seoul, Republic of Korea
| |
Collapse
|
39
|
Affiliation(s)
- S W Han
- Department of Neurology, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Korea.
| | | | | | | | | | | |
Collapse
|
40
|
Han SW, Roman J. Fibronectin induces cell proliferation and inhibits apoptosis in human bronchial epithelial cells: pro-oncogenic effects mediated by PI3-kinase and NF-κB. Oncogene 2006; 25:4341-9. [PMID: 16518410 DOI: 10.1038/sj.onc.1209460] [Citation(s) in RCA: 86] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The extracellular matrix glycoprotein, fibronectin, influences a variety of cellular functions including adhesion, migration, survival, differentiation, and growth. Fibronectin has also been shown to increase the migration and proliferation of human lung carcinoma cells. However, the role of fibronectin in controlling lung airway epithelial cell phenotype remains unknown. Here, we demonstrate that fibronectin stimulates the proliferation of human bronchial epithelial cells (BEAS-2B and 16-HBE). Of note, fibronectin induced the mRNA and protein expression of c-Myc and cyclin D1, while it decreased the expressions of cyclin-dependent kinase inhibitor p21 (WAF-1/CIP1/MDA-6) (p21) and the tumor suppressor gene phosphatase and tensin homolog deleted on chromosome ten (PTEN). Fibronectin also stimulated the phosphorylation of the phosphatidylinositol 3 kinase (PI3-K) downstream signal Akt. The inhibitor of PI3-K, Wortmannin, and anti-alpha5beta1 integrin antibodies abrogated the effect of fibronectin on c-Myc, cyclin D1, p21, and PTEN expression. The stimulatory effect of fibronectin was mediated by nuclear factor kappaB (NF-kappaB) since fibronectin induced the expression of the p65 component of NF-kappaB and enhanced NF-kappaB DNA binding. Furthermore, we found that p65 small interfering RNA inhibited the effect of fibronectin on c-Myc, cyclin D1, p21, PTEN expression, and on fibronectin-induced cell proliferation. Finally, we found that fibronectin inhibits apoptosis by reducing DNA fragmentation and inhibiting the activities of caspases 3/7. Taken together, our findings demonstrate that fibronectin stimulates human bronchial epithelial cell growth and inhibits apoptosis through activation of NF-kappaB, which, in turn, increases the expression of c-Myc and cyclin D1 and decreases p21 and PTEN via alpha5beta1 integrin-dependent signals that include PI3-K/Akt. Therefore, alternations in the extracellular matrix composition of the lung, with increased fibronectin, might promote epithelial cell growth and thereby contribute to oncogenesis in certain settings.
Collapse
Affiliation(s)
- S W Han
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA.
| | | |
Collapse
|
41
|
Seo JS, Lee SS, Kim SI, Ryu WH, Sa KH, Kim SU, Han SW, Nam EJ, Park JY, Lee WK, Kim SY, Kang YM. Influence of VEGF gene polymorphisms on the severity of ankylosing spondylitis. Rheumatology (Oxford) 2005; 44:1299-302. [PMID: 16014410 DOI: 10.1093/rheumatology/kei013] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES To investigate the role of polymorphisms of the vascular endothelial growth factor (VEGF) gene in susceptibility to ankylosing spondylitis (AS), and their relationship to clinical features and radiographic severity. METHODS This study included 157 patients with AS and 140 healthy unrelated controls. Polymorphisms of the VEGF gene were analysed by the polymerase chain reaction (PCR)-restriction fragment length polymorphism assay and amplification refractory mutation system-PCR. Haplotypes were reconstructed using the Bayesian algorithm. Radiographic severity was assessed by the Bath Ankylosing Spondylitis Radiological Index (BASRI). RESULTS The genotype frequencies of the polymorphisms were in Hardy-Weinberg equilibrium. The distributions of genotypes and alleles did not differ between AS patients and controls. Among the six haplotypes reconstructed based on the tight linkage disequilibrium at positions -2578, -1154 and -634 (pairwise linkage disequilibrium coefficient, r = 0.361-0.706), no haplotype was associated with susceptibility to AS. Clinical features were analysed for the four haplotypes (CGC, CGG, AAG, AGG) which were prevalent. In carriers of the AGG haplotype, the frequency of cervical spine involvement was significantly higher (P = 0.002, P(corr) = 0.036) and that of patients showing a BASRI score >6 was also higher (P = 0.025, P(corr) = 0.45). CONCLUSIONS This study demonstrates that polymorphisms of the VEGF gene may contribute to disease severity in AS.
Collapse
Affiliation(s)
- J S Seo
- Department of Internal Medicine, Kyungpook National University Hospital, Samduk 2-Ga, Junggu, Daegu 700-721, Republic of Korea
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Keam B, Keam B, Han SW, Ham HS, Kim DW, Im SA, Kim TY, Yoon SS, Heo DS, Bang YJ, Kim NK. Pharmacogenomic prediction of response in advanced gastric cancer (AGC) patients receiving 5-Fluorouracil (FU)/leucovorin (LV)/oxaliplatin (OX) as first-line palliative chemotherapy. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.3060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- B. Keam
- Seoul National Univ Hosp, Seoul, Republic of Korea; Cancer Research Institute, Seoul, Republic of Korea
| | - B. Keam
- Seoul National Univ Hosp, Seoul, Republic of Korea; Cancer Research Institute, Seoul, Republic of Korea
| | - S. W. Han
- Seoul National Univ Hosp, Seoul, Republic of Korea; Cancer Research Institute, Seoul, Republic of Korea
| | - H. S. Ham
- Seoul National Univ Hosp, Seoul, Republic of Korea; Cancer Research Institute, Seoul, Republic of Korea
| | - D. W. Kim
- Seoul National Univ Hosp, Seoul, Republic of Korea; Cancer Research Institute, Seoul, Republic of Korea
| | - S. A. Im
- Seoul National Univ Hosp, Seoul, Republic of Korea; Cancer Research Institute, Seoul, Republic of Korea
| | - T. Y. Kim
- Seoul National Univ Hosp, Seoul, Republic of Korea; Cancer Research Institute, Seoul, Republic of Korea
| | - S. S. Yoon
- Seoul National Univ Hosp, Seoul, Republic of Korea; Cancer Research Institute, Seoul, Republic of Korea
| | - D. S. Heo
- Seoul National Univ Hosp, Seoul, Republic of Korea; Cancer Research Institute, Seoul, Republic of Korea
| | - Y. J. Bang
- Seoul National Univ Hosp, Seoul, Republic of Korea; Cancer Research Institute, Seoul, Republic of Korea
| | - N. K. Kim
- Seoul National Univ Hosp, Seoul, Republic of Korea; Cancer Research Institute, Seoul, Republic of Korea
| |
Collapse
|
43
|
Lee KH, Han SW, Jeong S, Kim DW, Chung DH, Im SA, Kim TY, Heo DS, Bang YJ, Kim NK. EGFR mutation and response to chemotherapy in non-small-cell lung cancer (NSCLC) patients. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.7084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- K. H. Lee
- Seoul National Univ Coll of Medicine, Seoul, Republic of Korea; ISU ABXIS, Seoul, Republic of Korea; Cancer Research Institute, Seoul National Univ, Seoul, Republic of Korea
| | - S. W. Han
- Seoul National Univ Coll of Medicine, Seoul, Republic of Korea; ISU ABXIS, Seoul, Republic of Korea; Cancer Research Institute, Seoul National Univ, Seoul, Republic of Korea
| | - S. Jeong
- Seoul National Univ Coll of Medicine, Seoul, Republic of Korea; ISU ABXIS, Seoul, Republic of Korea; Cancer Research Institute, Seoul National Univ, Seoul, Republic of Korea
| | - D. W. Kim
- Seoul National Univ Coll of Medicine, Seoul, Republic of Korea; ISU ABXIS, Seoul, Republic of Korea; Cancer Research Institute, Seoul National Univ, Seoul, Republic of Korea
| | - D. H. Chung
- Seoul National Univ Coll of Medicine, Seoul, Republic of Korea; ISU ABXIS, Seoul, Republic of Korea; Cancer Research Institute, Seoul National Univ, Seoul, Republic of Korea
| | - S. A. Im
- Seoul National Univ Coll of Medicine, Seoul, Republic of Korea; ISU ABXIS, Seoul, Republic of Korea; Cancer Research Institute, Seoul National Univ, Seoul, Republic of Korea
| | - T. Y. Kim
- Seoul National Univ Coll of Medicine, Seoul, Republic of Korea; ISU ABXIS, Seoul, Republic of Korea; Cancer Research Institute, Seoul National Univ, Seoul, Republic of Korea
| | - D. S. Heo
- Seoul National Univ Coll of Medicine, Seoul, Republic of Korea; ISU ABXIS, Seoul, Republic of Korea; Cancer Research Institute, Seoul National Univ, Seoul, Republic of Korea
| | - Y. J. Bang
- Seoul National Univ Coll of Medicine, Seoul, Republic of Korea; ISU ABXIS, Seoul, Republic of Korea; Cancer Research Institute, Seoul National Univ, Seoul, Republic of Korea
| | - N. K. Kim
- Seoul National Univ Coll of Medicine, Seoul, Republic of Korea; ISU ABXIS, Seoul, Republic of Korea; Cancer Research Institute, Seoul National Univ, Seoul, Republic of Korea
| |
Collapse
|
44
|
Han SW, Jeong S, Choi IS, Kim DW, Chung DH, Im SA, Kim TY, Heo DS, Bang YJ, Kim NK. EGFR and K-ras mutations as determinants of gefitinib sensitivity in non-small-cell lung cancer (NSCLC). J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.7078] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- S. W. Han
- Seoul National Univ Coll of Medicine, Seoul, Republic of Korea; ISU ABXIS, Inc., Seoul, Republic of Korea; Seoul Municipal Boramae Hosp, Seoul, Republic of Korea; Cancer Research Institute, Seoul National Univ, Seoul, Republic of Korea
| | - S. Jeong
- Seoul National Univ Coll of Medicine, Seoul, Republic of Korea; ISU ABXIS, Inc., Seoul, Republic of Korea; Seoul Municipal Boramae Hosp, Seoul, Republic of Korea; Cancer Research Institute, Seoul National Univ, Seoul, Republic of Korea
| | - I. S. Choi
- Seoul National Univ Coll of Medicine, Seoul, Republic of Korea; ISU ABXIS, Inc., Seoul, Republic of Korea; Seoul Municipal Boramae Hosp, Seoul, Republic of Korea; Cancer Research Institute, Seoul National Univ, Seoul, Republic of Korea
| | - D. W. Kim
- Seoul National Univ Coll of Medicine, Seoul, Republic of Korea; ISU ABXIS, Inc., Seoul, Republic of Korea; Seoul Municipal Boramae Hosp, Seoul, Republic of Korea; Cancer Research Institute, Seoul National Univ, Seoul, Republic of Korea
| | - D. H. Chung
- Seoul National Univ Coll of Medicine, Seoul, Republic of Korea; ISU ABXIS, Inc., Seoul, Republic of Korea; Seoul Municipal Boramae Hosp, Seoul, Republic of Korea; Cancer Research Institute, Seoul National Univ, Seoul, Republic of Korea
| | - S.-A. Im
- Seoul National Univ Coll of Medicine, Seoul, Republic of Korea; ISU ABXIS, Inc., Seoul, Republic of Korea; Seoul Municipal Boramae Hosp, Seoul, Republic of Korea; Cancer Research Institute, Seoul National Univ, Seoul, Republic of Korea
| | - T. Y. Kim
- Seoul National Univ Coll of Medicine, Seoul, Republic of Korea; ISU ABXIS, Inc., Seoul, Republic of Korea; Seoul Municipal Boramae Hosp, Seoul, Republic of Korea; Cancer Research Institute, Seoul National Univ, Seoul, Republic of Korea
| | - D. S. Heo
- Seoul National Univ Coll of Medicine, Seoul, Republic of Korea; ISU ABXIS, Inc., Seoul, Republic of Korea; Seoul Municipal Boramae Hosp, Seoul, Republic of Korea; Cancer Research Institute, Seoul National Univ, Seoul, Republic of Korea
| | - Y. J. Bang
- Seoul National Univ Coll of Medicine, Seoul, Republic of Korea; ISU ABXIS, Inc., Seoul, Republic of Korea; Seoul Municipal Boramae Hosp, Seoul, Republic of Korea; Cancer Research Institute, Seoul National Univ, Seoul, Republic of Korea
| | - N. K. Kim
- Seoul National Univ Coll of Medicine, Seoul, Republic of Korea; ISU ABXIS, Inc., Seoul, Republic of Korea; Seoul Municipal Boramae Hosp, Seoul, Republic of Korea; Cancer Research Institute, Seoul National Univ, Seoul, Republic of Korea
| |
Collapse
|
45
|
Abstract
OBJECTIVE To determine whether transforming growth factor-beta1 (TGF-beta1) polymorphisms are associated with susceptibility to rheumatoid arthritis (RA) and to analyse whether they can affect the progression of radiographic severity. METHODS A total of 143 RA patients and 148 healthy unrelated controls were tested for the TGF-beta1 polymorphisms using polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP). RESULTS The TGF-beta1 polymorphisms were not associated with susceptibility to RA, although there was a trend that -509C/T and the 869T/C polymorphisms were associated with RA in the male population. The progression of radiographic severity, which was defined by a modified Sharp score plotted against disease duration, was significantly faster in the carrier of T allele at the -509 (p=0.048). CONCLUSION Our data support the hypothesis that TGF-beta1 polymorphism may determine the progression of joint destruction in RA.
Collapse
Affiliation(s)
- S Y Kim
- Department of Orthopaedic Surgery, Kyungpook National University School of Medicine, Daegu, South Korea
| | | | | | | | | |
Collapse
|
46
|
Relvas WGM, Izar MCO, Helfenstein T, Fonseca MIH, Colovati M, Oliveira A, Ihara SSM, Han SW, Las Casas AA, Fonseca FAH. Relationship between gene polymorphisms and prevalence of myocardial infarction among diabetic and non-diabetic subjects. Atherosclerosis 2005; 178:101-5. [PMID: 15585206 DOI: 10.1016/j.atherosclerosis.2004.05.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2003] [Revised: 05/04/2004] [Accepted: 05/25/2004] [Indexed: 10/26/2022]
Abstract
This study was aimed to examine cholesteryl ester transfer protein (CETP), apolipoprotein AI and CIII gene polymorphisms, and to verify whether these genetic determinants are associated with the prevalence of myocardial infarction (MI) or type 2 diabetes. The TaqIB restriction fragment length polymorphism (RFLP) in intron I of the CETP gene, the MspI in the third intron of the APOAI gene, and also SstI in the 3' untranslated region of the APOCIII gene were determined using standard methods. The prevalence of these polymorphisms was compared between diabetic (n = 119), and non-diabetic (n = 100) middle-aged individuals of both sexes. We found a higher prevalence of the B2B2 genotype of the CETP gene among diabetics than that observed in non-diabetics (P < 0.05), and a lower prevalence of this genotype among patients with previous MI (P < 0.02). The MspI polymorphisms of the APOAI gene showed that M1++ genotype was found mainly in diabetic patients (P < 0.04). Conversely, the SstI polymorphism of APOCIII gene was not significantly associated with either MI or diabetes. Therefore, among these genetic polymorphisms, TaqIB of CETP and MspI of apolipoprotein AI appeared to help significantly to identify diabetic individuals. In particular, the former may have an additional role in the primary prevention of coronary disease.
Collapse
Affiliation(s)
- W G M Relvas
- Lipides, Aterosclerose e Biologia Vascular, Disciplina de Cardiologia-Universidade Federal de São Paulo, UNIFESP, Rua Pedro de Toledo 458, São Paulo 04039-001, Brazil
| | | | | | | | | | | | | | | | | | | |
Collapse
|
47
|
Kang JS, Kim G, Wi SC, Lee SS, Choi S, Cho S, Han SW, Kim KH, Song HJ, Shin HJ, Sekiyama A, Kasai S, Suga S, Min BI. Spatial chemical inhomogeneity and local electronic structure of Mn-doped Ge ferromagnetic semiconductors. Phys Rev Lett 2005; 94:147202. [PMID: 15904100 DOI: 10.1103/physrevlett.94.147202] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2004] [Indexed: 05/02/2023]
Abstract
We have investigated the chemical distributions and the local electronic structure of potential diluted magnetic semiconductor Ge0.94Mn0.06 single crystals using scanning photoelectron microscopy (SPEM), x-ray absorption spectroscopy (XAS), and photoemission spectroscopy (PES). The SPEM image shows the stripe-shaped microstructures, which arise from the chemical phase separation between the Mn-rich and Mn-depleted phases. The Mn 2p XAS shows that the Mn ions in the Mn-rich region are in the divalent high-spin Mn2+ states but that they do not form metallic Mn clusters. The Mn 3d PES spectrum exhibits a peak centered at approximately 4 eV below E(F) and the negligible spectral weight near E(F). This study suggests that the observed ferromagnetism in Ge1-xMnx arises from the phase-separated Mn-rich phase.
Collapse
Affiliation(s)
- J-S Kang
- Department of Physics, The Catholic University of Korea, Puchon 420-743, Korea
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
48
|
Affiliation(s)
- S H Kim
- Department of Neurology, Molecular Aging Research Center, Brain Korea 21 Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Korea
| | | | | | | | | | | | | |
Collapse
|
49
|
Abstract
Limb shaking TIA is a rare but well-known feature of severe carotid artery stenosis. The authors report a patient who developed recurrent shaking movements of a leg. An angiogram showed the focal stenosis of the anterior cerebral artery. Ictal and postacetazolamide SPECT scans suggested a local hyperfunction of cortical neurons and an impaired hemodynamic reserve in the vicinity of the ischemic area.
Collapse
MESH Headings
- Acetazolamide
- Anterior Cerebral Artery/diagnostic imaging
- Anterior Cerebral Artery/pathology
- Anterior Cerebral Artery/physiopathology
- Anticoagulants/therapeutic use
- Carbonic Anhydrase Inhibitors
- Cerebral Angiography
- Cerebrovascular Circulation/drug effects
- Cerebrovascular Circulation/physiology
- Constriction, Pathologic/complications
- Constriction, Pathologic/pathology
- Constriction, Pathologic/physiopathology
- Corpus Callosum/blood supply
- Corpus Callosum/diagnostic imaging
- Corpus Callosum/pathology
- Female
- Gyrus Cinguli/blood supply
- Gyrus Cinguli/diagnostic imaging
- Gyrus Cinguli/pathology
- Humans
- Infarction, Anterior Cerebral Artery/diagnostic imaging
- Infarction, Anterior Cerebral Artery/pathology
- Infarction, Anterior Cerebral Artery/physiopathology
- Ischemic Attack, Transient/complications
- Ischemic Attack, Transient/pathology
- Ischemic Attack, Transient/physiopathology
- Leg/physiopathology
- Magnetic Resonance Imaging
- Middle Aged
- Movement Disorders/etiology
- Movement Disorders/pathology
- Movement Disorders/physiopathology
- Tomography, Emission-Computed, Single-Photon
- Treatment Outcome
Collapse
Affiliation(s)
- S W Han
- Department of Neurology, Research Institute of Aging Science, Brain Korea 21 Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Korea
| | | | | | | | | | | |
Collapse
|
50
|
Han SW, Hwang PG, Chung DH, Kim JH, Kim DW, Kim TY, Heo DS, Bang YJ, Kim NK. Gefitinib monotherapy in previously treated advanced non-small cell lung cancer (NSCLC): An immunohistochemical (IHC) analysis of EGFR and its downstream molecules. J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.7096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- S. W. Han
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - P. G. Hwang
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - D. H. Chung
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - J. H. Kim
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - D. W. Kim
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - T. Y. Kim
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - D. S. Heo
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Y. J. Bang
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - N. K. Kim
- Seoul National University College of Medicine, Seoul, Republic of Korea
| |
Collapse
|