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Sim KM, Kim SY, Hwang S, Park S, Lee BR, Nam K, Oh S, Kim I. A new cyclin-dependent kinase-9 inhibitor A09-003 induces apoptosis in acute myeloid leukemia cells with reduction of myeloid cell leukemia sequence-1 protein. Chem Biol Interact 2023; 382:110554. [PMID: 37271215 DOI: 10.1016/j.cbi.2023.110554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/10/2023] [Accepted: 05/17/2023] [Indexed: 06/06/2023]
Abstract
Acute myeloid leukemia (AML) is the most common type of hematological disease in adults, and has a very poor outcome [1]. Based on its wide range of efficacy in AML models, a small-molecule inhibitor of the anti-apoptotic protein BCL-2, venetoclax (ABT-199/GDC-0199), was developed for clinical trials. However, venetoclax showed limited monotherapy activity [2]. The overexpression of myeloid cell leukemia sequence-1 protein (Mcl-1)-due to mutations in Fms-like tyrosine kinase 3 internal tandem duplication (FLT-3 ITD)-was considered to be the main reason for low efficacy of venetoclax in clinical trials [3-5]. To achieve venetoclax sensitization in AML, targeting CDK-9 with venetoclax is a promising therapeutic strategy. In this study, we developed A09-003 as a potent inhibitor of CDK-9, with an IC50 value of 16 nM. A09-003 inhibited cell proliferation in various leukemia cell lines. In particular, the proliferation inhibitory effect of A09-003 was most potent in MV4-11 and Molm-14 cells, harboring the FLT-3 ITD mutation with a high expression profile of Mcl-1. Marker analysis revealed that A09-003 reduced CDK-9 phosphorylation and reduced RNA polymerase II activity with decreased Mcl-1 expression. Finally, combining A09-003 with venetoclax induced apoptotic cell death in a synergistic manner. In summary, this study shows the potential of A09-003 in AML therapy.
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Affiliation(s)
- Kyoung Mi Sim
- Biomedical Research Center, ASAN Institute for Life Sciences, ASAN Medical Center, 88, Olympic-ro 43-gil, Songpa-Gu, Seoul, Republic of Korea
| | - So Young Kim
- Biomedical Research Center, ASAN Institute for Life Sciences, ASAN Medical Center, 88, Olympic-ro 43-gil, Songpa-Gu, Seoul, Republic of Korea
| | - Supyong Hwang
- Convergence Medicine Research Center (CREDIT), ASAN Institute for Life Sciences, ASAN Medical Center, 88, Olympic-ro 43-gil, Songpa-Gu, Seoul, Republic of Korea
| | - Sojung Park
- Convergence Medicine Research Center (CREDIT), ASAN Institute for Life Sciences, ASAN Medical Center, 88, Olympic-ro 43-gil, Songpa-Gu, Seoul, Republic of Korea
| | - Bo Ra Lee
- Convergence Medicine Research Center (CREDIT), ASAN Institute for Life Sciences, ASAN Medical Center, 88, Olympic-ro 43-gil, Songpa-Gu, Seoul, Republic of Korea
| | | | - SeakHee Oh
- Department of Pediatrics, Asan Medical Center Children's Hospital, University Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-Gu, Seoul, 05505, Republic of Korea
| | - Inki Kim
- Biomedical Research Center, ASAN Institute for Life Sciences, ASAN Medical Center, 88, Olympic-ro 43-gil, Songpa-Gu, Seoul, Republic of Korea; Convergence Medicine Research Center (CREDIT), ASAN Institute for Life Sciences, ASAN Medical Center, 88, Olympic-ro 43-gil, Songpa-Gu, Seoul, Republic of Korea; Department of Pharmacology, University of Ulsan College of Medicine, 88 Olympicro 43 gil, Songpa-Gu, Seoul, Republic of Korea.
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Lee BR, Kim MJ, Kim JH, Choi YJ, Park JS, Suh DI. High-flow nasal cannula therapy for children with complex chronic disease in the general ward: A single, tertiary center experience. Allergy Asthma Respir Dis 2023. [DOI: 10.4168/aard.2023.11.1.26] [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: 02/01/2023]
Affiliation(s)
- Bo Ra Lee
- Department of Pediatrics, Eulji University Uijeongbu Hospital, Uijeongbu, Korea
| | - Min Jung Kim
- Department of Pediatrics, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Ji Hye Kim
- Department of Pediatrics, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Yun Jung Choi
- Department of Pediatrics, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Ji Soo Park
- Department of Pediatrics, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Dong In Suh
- Department of Pediatrics, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
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Lee BR, Jung HI, Kim SK, Kwon M, Kim H, Jung M, Kyung Y, Kim BE, Choi SJ, Oh SY, Baek SY, Kim S, Bae J, Ahn K, Kim J. Dietary Diversity during Early Infancy Increases Microbial Diversity and Prevents Egg Allergy in High-Risk Infants. Immune Netw 2022; 22:e17. [PMID: 35573149 PMCID: PMC9066009 DOI: 10.4110/in.2022.22.e17] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/27/2021] [Accepted: 10/29/2021] [Indexed: 12/01/2022] Open
Affiliation(s)
- Bo Ra Lee
- Department of Pediatrics, Uijeongbu Eulji Medical Center, Eulji University School of Medicine, Uijeongbu 11749, Korea
| | - Hye-In Jung
- Department of Pediatrics, Nowon Eulji Medical Center, Eulji University School of Medicine, Seoul 01830, Korea
| | - Su Kyung Kim
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
- Environmental Health Center for Atopic Diseases, Samsung Medical Center, Seoul 06351, Korea
| | - Mijeong Kwon
- Environmental Health Center for Atopic Diseases, Samsung Medical Center, Seoul 06351, Korea
| | - Hyunmi Kim
- Environmental Health Center for Atopic Diseases, Samsung Medical Center, Seoul 06351, Korea
| | - Minyoung Jung
- Department of Pediatrics, Kosin University Gospel Hospital, Kosin University School of Medicine, Busan 49267, Korea
| | - Yechan Kyung
- Department of Pediatrics, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon 51353, Korea
| | - Byung Eui Kim
- Environmental Health Center for Atopic Diseases, Samsung Medical Center, Seoul 06351, Korea
- Department of Pediatrics, National Jewish Health, Denver, CO 80206, USA
| | - Suk-Joo Choi
- Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
| | - Soo-Young Oh
- Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
| | - Sun-Young Baek
- Center for Biomedical Statistics, Samsung Medical Center, Seoul 06351, Korea
| | - Seonwoo Kim
- Center for Biomedical Statistics, Samsung Medical Center, Seoul 06351, Korea
| | - Jaewoong Bae
- R&D Institute, BioEleven Co., Ltd., Seoul 06142, Korea
| | - Kangmo Ahn
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
- Environmental Health Center for Atopic Diseases, Samsung Medical Center, Seoul 06351, Korea
| | - Jihyun Kim
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
- Environmental Health Center for Atopic Diseases, Samsung Medical Center, Seoul 06351, Korea
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Kim S, Han SY, Lee J, Kim NR, Lee BR, Kim H, Kwon M, Ahn K, Noh Y, Kim SJ, Lee P, Kim D, Kim BE, Kim J. Bifidobacterium longum and Galactooligosaccharide Improve Skin Barrier Dysfunction and Atopic Dermatitis-like Skin. Allergy Asthma Immunol Res 2022; 14:549-564. [PMID: 36174995 PMCID: PMC9523416 DOI: 10.4168/aair.2022.14.5.549] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 06/30/2022] [Accepted: 07/05/2022] [Indexed: 11/20/2022]
Abstract
Purpose The beneficial effects of a combination therapy using Bifidobacterium longum and galactooligosaccharide (GOS) for the treatment of atopic dermatitis (AD) have not been elucidated. Methods Gene expressions of interleukin (IL)-4 and IL-13 from peripheral blood mononuclear cells and fecal abundance of B. longum from 12-month-old infants were evaluated. Human primary epidermal keratinocytes (HEKs) and hairless mice were treated with B. longum, GOS, B. longum-derived extracellular vesicles (BLEVs), dinitrochlorobenzene (DNCB), or a synbiotic mixture of B. longum and GOS. Expression of epidermal barrier proteins and cytokines as well as serum immunoglobulin E (IgE) levels were analyzed in HEKs and mice. Dermatitis scores, transepidermal water loss (TEWL), epidermal thickness, and fecal B. longum abundance were evaluated in mice. Results Fecal abundance of B. longum was negatively correlated with blood IL-13 expression in infants. B. longum or BLEVs increased expression of filaggrin (FLG) and loricrin (LOR) in HEKs. B. longum increased the efficacy of GOS to upregulate FLG and LOR expressions in HEKs. Oral administration of GOS increased fecal abundance of B. longum in mice. Oral administration of B. longum attenuated DNCB-induced skin inflammation, abnormal TEWL, AD-like skin, and deficiency of epidermal barrier proteins. Moreover, the combination of B. longum and GOS showed greater effects to improve DNCB-induced skin inflammation, abnormal TEWL, AD-like skin, serum IgE levels, IL-4 over-expression, and the deficiency of epidermal barrier proteins than the administration of B. longum alone. Conclusions B. longum and GOS improve DNCB-induced skin barrier dysfunction and AD-like skin.
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Affiliation(s)
- Sukyung Kim
- Department of Pediatrics, Hallym University Dongtan Sacred Heart Hospital, Hallym University School of Medicine, Hwaseong, Korea
| | - Song-Yi Han
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jinyoung Lee
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Na-Rae Kim
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Bo Ra Lee
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hyunmi Kim
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Mijeoung Kwon
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kangmo Ahn
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | | | | | - Phyrim Lee
- Dairyteam, Lotte R&D Center, Seoul, Korea
| | - Dongki Kim
- Department of Translational Research and Cellular Therapeutics, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Byung Eui Kim
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
- Department of Pediatrics, National Jewish Health, Denver, CO, USA
| | - Jihyun Kim
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Kamal Rodin NS, Ismail NA, Abdul Wahid SF, Jamil A, Syed Zakaria SZ, Syed Abd Kadir SS, Lee BR, Bakrin IH, Wan Jamaludin WF. Epidemiology and clinical profiles of cutaneous graft versus host disease in allogeneic peripheral blood stem cell transplantation. Malays J Pathol 2021; 43:361-373. [PMID: 34958057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
INTRODUCTION The epidemiology of cutaneous graft versus host disease (GVHD) in allogeneic peripheral blood stem cell transplantation (PBSCT) in Malaysia has not been described. MATERIALS AND METHODS We retrospectively analysed 691 allogeneic PBSCT patients between 2010-2017 in two centers. RESULTS The prevalence of cutaneous GVHD was 31.4% (217/691). No associations were detected with race, age or gender of donor and recipients. Cutaneous GVHD was associated with host cytomegalovirus (CMV) seropositivity (p<0.01), conditioning (p<0.01), GVHD prophylaxis (p=0.046) and survival (p<0.01). Majority developed the acute form (58.1%;126/217). Biopsies in 20.7% (45/217) showed 55.6% positivity for GVHD. Overall, involvement was non-severe. A majority demonstrated complete response (CR) to first-line corticosteroids (70.0%;152/217). Secondline therapies (extracorporeal phototherapy (ECP), psolaren ultraviolet A (PUVA), mycophenolate, tumour necrosis factor (TNF) inhibitors, interleukins inhibitors, or CD20 monoclonal antibodies) were required in 65/217, with 38.5% CR. Second-line therapy was associated with gender (p=0.042), extra-cutaneous GVHD (p=0.021), treatment outcomes (p=0.026) and survival (p=0.048). Mortality in cutaneous GVHD was 24.0% with severe sepsis being the leading cause at Day 100 (7.8%) and 5-years (7.8%), and relapsed disease at 2-years (32.7%). In steroid refractoriness, severe GVHD caused 30.8% mortality. In cutaneous GVHD, survival at Day 100 was 95.4%; 80.2% at 2-years and 73.1% at 5-years. The median survival in cutaneous GVHD was significantly shorter at 55 months, compared to those without GVHD at 69 months (p=0.001). CONCLUSION Cutaneous involvement is the commonest clinical manifestation of GVHD. A larger national study is warranted to further analyse severity and outcome of multiorgan GVHD, and factors associated with steroid refractoriness.
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Affiliation(s)
- N S Kamal Rodin
- Universiti Kebangsaan Malaysia Medical Centre, Department of Medicine, Kuala Lumpur, Malaysia
| | - N A Ismail
- Universiti Kebangsaan Malaysia Medical Centre, Cell Therapy Centre, Kuala Lumpur, Malaysia
| | - S F Abdul Wahid
- Universiti Kebangsaan Malaysia Medical Centre, Cell Therapy Centre, Kuala Lumpur, Malaysia
| | - A Jamil
- Universiti Kebangsaan Malaysia Medical Centre, Department of Medicine, Kuala Lumpur, Malaysia
| | - S Z Syed Zakaria
- Universiti Kebangsaan Malaysia Medical Centre, Department of Pediatric & Community Health, Kuala Lumpur, Malaysia
| | - S S Syed Abd Kadir
- Hospital Ampang, Department of Hematology, 68000 Ampang, Selangor, Malaysia
| | - B R Lee
- Hospital Gleneagles, Department of Dermatopathology, 50450 Kuala Lumpur, Malaysia
| | - I H Bakrin
- Universiti Putra Malaysia, Faculty of Medicine and Health Sciences, Department of Pathology
| | - W F Wan Jamaludin
- Universiti Kebangsaan Malaysia Medical Centre, Cell Therapy Centre, Kuala Lumpur, Malaysia.
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Jung M, Kim MJ, Kim S, Kyung Y, Kim M, Lee JY, Jeong HI, Lee BR, Kim J, Ahn K, Park YM. Effect of prenatal phthalate exposure on childhood atopic dermatitis: A systematic review and meta-analysis. Allergy Asthma Proc 2021; 42:e116-e125. [PMID: 34187630 DOI: 10.2500/aap.2021.42.210036] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Background: The association between prenatal exposure to phthalate and childhood atopic dermatitis (AD) has previously been investigated; however, the results are inconsistent. Objective: We aimed to perform a systematic review and meta-analysis of birth cohort studies to investigate whether prenatal exposure to phthalate increases the risk of developing AD in children. Methods: We performed an electronic search of medical literature data bases. Studies were critically appraised, and a meta-analysis was performed. Results: Among 129 articles identified, 11 studies met the eligibility criteria. Included studies originated from Europe (n = 5), the United States (n = 4), and Asia (n = 2). The study sample size ranged from 147 to 1024 mother-child pairs. Quality assessment by using the Newcastle-Ottawa scale of all the studies had scores of ≥6. A meta-analysis of data from eight selected studies suggested that monobenzyl phthalate (MBzP) exposure was significantly associated with the risk of AD development (odds ratio 1.16 [95% confidence interval, 1.04-1.31]; I² = 17.36%). However, AD development was not associated with other phthalate metabolites, such as mono-(2-ethylhexyl) phthalate, monoethyl phthalate, mono-isobutyl phthalate, mono-n-butyl phthalate, and the sum of di-[2-ethylhexyl] phthalate on the development of AD (all p values were > 0.05). Conclusion: Our meta-analysis suggested that prenatal exposure to phthalates may be associated with the development of childhood AD. However, further research is needed because only MBzP showed statistical significance and the number of articles in the literature is still insufficient.
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Affiliation(s)
- Minyoung Jung
- From the Department of Pediatrics, Kosin University Gospel Hospital, Kosin University School of Medicine, Busan, Republic of Korea
| | - Min-Ji Kim
- Statistics and Data Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Republic of Korea
| | - Seonwoo Kim
- Statistics and Data Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Republic of Korea
| | - Yechan Kyung
- Department of Pediatrics, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Republic of Korea
| | - Minji Kim
- Department of Pediatrics, Chungnam National University College of Medicine, Chungnam National University Sejong Hospital, Sejong, Republic of Korea
| | - Ji Young Lee
- Department of Pediatrics, Hallym University Chuncheon Sacred Heart Hospital, Chuncheon, Republic of Korea
| | - Hye-In Jeong
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Bo Ra Lee
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Jihyun Kim
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Kangmo Ahn
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Yong Mean Park
- Department of Pediatrics, Konkuk University Medical Center, Seoul, Republic of Korea
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Shin S, Kim SK, Jung HI, Cho SY, Kim J, Joo EY, Ahn K, Lee BR. A case of ROHHAD (rapid-onset obesity with hypothalamic dysregulation, hypoventilation, and autonomic dysregulation) syndrome in an 11-year-old girl. Allergy Asthma Respir Dis 2021. [DOI: 10.4168/aard.2021.9.4.249] [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]
Affiliation(s)
- Sanghee Shin
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Su Kyung Kim
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hye-In Jung
- Department of Pediatrics, Nowon Eulji Medical Center, Eulji University School of Medicine, Seoul, Korea
| | - Sung Yoon Cho
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jihyun Kim
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Eun Yeon Joo
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kangmo Ahn
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Bo Ra Lee
- Department of Pediatrics, Uijeongbu Eulji Medical Center, Eulji University School of Medicine, Uijeongbu, Korea
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Lee JE, Kim SH, Lee SJ, Choi SY, Lee S, Lee BR. A Comparative Study of Survivor Outcomes between Preoperative Evaluation Using CT Alone and Combined CT and MRI in Patients with Pancreatic Ductal Adenocarcinoma. J Korean Soc Radiol 2021; 82:638-653. [PMID: 36238786 PMCID: PMC9432452 DOI: 10.3348/jksr.2020.0078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/09/2020] [Accepted: 07/04/2020] [Indexed: 11/15/2022]
Abstract
Purpose Materials and Methods Results Conclusion
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Affiliation(s)
- Ji Eun Lee
- Department of Radiology, Soonchunhyang University College of Medicine, Bucheon Hospital, Bucheon, Korea
| | - Seong Hyun Kim
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Soon Jin Lee
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Seo-Youn Choi
- Department of Radiology, Soonchunhyang University College of Medicine, Bucheon Hospital, Bucheon, Korea
| | - Sunyoung Lee
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Bo Ra Lee
- Department of Biomedical Statistics, Soonchunhyang University College of Medicine, Bucheon Hospital, Bucheon, Korea
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Kim I, Lee BR, Kyung Y, Jung M, Yang HK, Kim M, Lee JY, Kim J, Ahn K, Jeong HI. Three cases of oral immunotherapy for IgE-mediated egg allergy. Allergy Asthma Respir Dis 2020. [DOI: 10.4168/aard.2020.8.3.161] [Citation(s) in RCA: 1] [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]
Affiliation(s)
- Insung Kim
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Bo Ra Lee
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Yechan Kyung
- Department of Pediatrics, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea
| | - Minyoung Jung
- Department of Pediatrics, Kosin University Gospel Hospital, Kosin University School of Medicine, Busan, Korea
| | | | - Minji Kim
- Department of Pediatrics, Hallym University Dongtan Sacred Heart Hospital, Hallym University School of Medicine, Hwasung, Korea
| | - Ji Young Lee
- Department of Pediatrics, Hallym University Hangang Sacred Heart Hospital, Hallym University School of Medicine, Seoul, Korea
| | - Jihyun Kim
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
- Environmental Health Center for Atopic Diseases, Samsung Medical Center, Seoul, Korea
| | - Kangmo Ahn
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
- Environmental Health Center for Atopic Diseases, Samsung Medical Center, Seoul, Korea
| | - Hye-In Jeong
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Lee BR, Shin SH, Kim MJ, Kim E, Choi YJ, Park JD, Suh DI. Clinical characteristics of pediatric pneumothorax during a noninvasive positive pressure ventilation. Allergy Asthma Respir Dis 2019. [DOI: 10.4168/aard.2019.7.1.51] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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]
Affiliation(s)
- Bo Ra Lee
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Korea
| | - So Hyun Shin
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Korea
| | - Min Jung Kim
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Korea
| | - Eunji Kim
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Korea
| | | | - June Dong Park
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Korea
| | - Dong In Suh
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Korea
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11
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Kim MJ, Lee BR, Park JS, Choi YJ, Song MK, Lee S, Suh DI. A pediatric case of eosinophilic granulomatosis with polyangiitis accompanied by heart failure mimicking an asthma attack. Allergy Asthma Respir Dis 2019. [DOI: 10.4168/aard.2019.7.4.212] [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]
Affiliation(s)
- Min Jung Kim
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - Bo Ra Lee
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - Ji Soo Park
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - Yun Jung Choi
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - Mi Kyoung Song
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - Soyoung Lee
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - Dong In Suh
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
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Huh JH, Kim HM, Lee ES, Kwon MH, Lee BR, Ko HJ, Chung CH. Dual CCR2/5 Antagonist Attenuates Obesity-Induced Insulin Resistance by Regulating Macrophage Recruitment and M1/M2 Status. Obesity (Silver Spring) 2018; 26:378-386. [PMID: 29280303 DOI: 10.1002/oby.22103] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [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: 08/30/2017] [Revised: 11/09/2017] [Accepted: 11/26/2017] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Adipose tissue inflammation induced by macrophage infiltration through the C-C motif chemokine receptor (CCR) 2 or CCR5 pathway has a pivotal role in obesity-related disease and insulin resistance. Here, the effect of PF4178903, a dual CCR2/CCR5 antagonist, on obesity and insulin resistance was evaluated. METHODS Forty male C57BL/6J mice were divided into four groups as follows: (1) regular diet (RD), (2) RD with PF4178903, (3) high-fat diet (HFD), and (4) HFD with PF4178903. All mice were sacrificed 12 weeks after the beginning of the experiment. Biochemical analyses and adipose tissue examinations were performed. RESULTS After treatment with PF4178903, both body weight and adipocyte size in white adipose tissue were decreased in HFD-fed mice. Furthermore, PF4178903 treatment reduced adipose tissue macrophages (ATMs) and lowered serum proinflammatory cytokines in HFD-fed mice. PF4178903 treatment significantly improved HFD-induced insulin resistance and glucose intolerance. Fluorescence-activated cell sorter analysis revealed that PF4178903 treatment reduced the CD8 + T cell fraction in white adipose tissue of HFD-fed mice. PF4178903 treatment reduced M1-polarized macrophages while inducing an M2-dominant shift in macrophages within white adipose tissue in HFD-fed mice. CONCLUSIONS Dual CCR2/CCR5 antagonism ameliorates insulin resistance and inflammation in obesity by regulating ATM recruitment and polarization in white adipose tissue.
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Affiliation(s)
- Ji Hye Huh
- Department of Internal Medicine, Wonju College of Medicine, Yonsei University, Seoul, Korea
| | - Hong Min Kim
- Department of Internal Medicine, Wonju College of Medicine, Yonsei University, Seoul, Korea
| | - Eun Soo Lee
- Department of Internal Medicine, Wonju College of Medicine, Yonsei University, Seoul, Korea
| | - Mi Hye Kwon
- Department of Internal Medicine, Wonju College of Medicine, Yonsei University, Seoul, Korea
| | - Bo Ra Lee
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon, Korea
| | - Hyun-Jeong Ko
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon, Korea
| | - Choon Hee Chung
- Department of Internal Medicine, Wonju College of Medicine, Yonsei University, Seoul, Korea
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13
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Kim MJ, Lee BR, Choi YH, Kang DY, Kang HR, Suh DI. Clinical characteristics of adverse reaction to radiocontrast media in children - A single center experience. Allergy Asthma Respir Dis 2018. [DOI: 10.4168/aard.2018.6.6.315] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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]
Affiliation(s)
- Min Jung Kim
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - Bo Ra Lee
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - Young Hun Choi
- Department of Radiology, Seoul National University College of Medicine, Seoul, Korea
| | - Dong Yoon Kang
- Drug Safety Monitoring Center, Seoul National University Hospital, Seoul, Korea
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Hye-Ryun Kang
- Drug Safety Monitoring Center, Seoul National University Hospital, Seoul, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Dong In Suh
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
- Drug Safety Monitoring Center, Seoul National University Hospital, Seoul, Korea
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14
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Choi SY, Kim SH, Park CK, Min JH, Lee JE, Choi YH, Lee BR. Imaging Features of Gadoxetic Acid-enhanced and Diffusion-weighted MR Imaging for Identifying Cytokeratin 19-positive Hepatocellular Carcinoma: A Retrospective Observational Study. Radiology 2017; 286:897-908. [PMID: 29166246 DOI: 10.1148/radiol.2017162846] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Purpose To determine the preoperative magnetic resonance (MR) imaging findings potentially most useful for predicting cytokeratin 19 (CK19)-positive hepatocellular carcinoma (HCC) and to evaluate the prognosis after curative resection in patients with a single HCC lesion positive for CK19 compared with patients with HCC who are negative for CK19. Materials and Methods The institutional review board approved this study and waived the requirement for informed consent. Two hundred four patients with CK19-negative HCC and 38 with CK19-positive HCC who underwent curative resection after gadoxetic acid-enhanced and diffusion-weighted MR imaging were retrospectively evaluated in a single institution. Two radiologists evaluated preoperative findings at MR imaging. Significant findings for differentiating the two groups were identified at univariate and multivariate analyses. By using receiver operating characteristic analysis, the optimal cut-off values for quantitative variables were determined. Recurrence-free survival rates after surgery were also compared between groups. Results At multivariate analysis, irregular tumor margin (P = .024), arterial rim enhancement (P < .001), lower tumor-to-liver signal intensity (SI) ratio on hepatobiliary phase (HBP) images (≤0.522; P = .01), and lower tumor-to-liver apparent diffusion coefficient (ADC) ratio (≤0.820; P < .001) were independent significant factors to predict CK19-positive HCC. When three of these four criteria were combined, 63.2% (24 of 38; 95% confidence interval: 46.0%, 78.2%) of CK19-positive HCCs were identified with a specificity of 90.7% (185 of 204; 95% confidence interval: 46.0%, 78.2%). When all four criteria were satisfied, specificity was 99.5% (203 of 204; 95% confidence interval: 97.3%, 100%). Recurrence-free survival rates were significantly lower in patients with CK19-positive HCCs compared with those with CK19-negative HCCs after curative resection (63.9% vs 90.0% at 1 year, 63.9% vs 79.9% at 2 years, and 54.8% vs 70.2% at 3 years, P = .001 by log-rank test). Conclusion At gadoxetic acid-enhanced and diffusion-weighted MR imaging, irregular margin, arterial phase rim enhancement, lower tumor-to-liver ADC ratio, and lower tumor-to-liver SI ratio at HBP imaging may be helpful to predict CK19-positive HCC with early recurrence (<2 years) after curative resection. © RSNA, 2017 Online supplemental material is available for this article.
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Affiliation(s)
- Seo-Youn Choi
- From the Departments of Radiology (S.Y.C., J.E.L.) and Biomedical Statistics (B.R.L.), Soonchunhyang University College of Medicine, Bucheon Hospital, Gyeonggi-do, Korea; Department of Radiology and Center for Imaging Science (S.H.K., J.E.L.) and Department of Pathology (C.K.P.), Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Ilwon-Ro, Gangnam-gu, Seoul 06351, Korea; Department of Radiology, Chungnam National University Hospital, Chungnam National University College of Medicine, Daejeon, Korea (J.H.M.); and Department of Preventive Medicine, Gachon University Graduate School of Medicine, Incheon, Korea (Y.H.C.)
| | - Seong Hyun Kim
- From the Departments of Radiology (S.Y.C., J.E.L.) and Biomedical Statistics (B.R.L.), Soonchunhyang University College of Medicine, Bucheon Hospital, Gyeonggi-do, Korea; Department of Radiology and Center for Imaging Science (S.H.K., J.E.L.) and Department of Pathology (C.K.P.), Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Ilwon-Ro, Gangnam-gu, Seoul 06351, Korea; Department of Radiology, Chungnam National University Hospital, Chungnam National University College of Medicine, Daejeon, Korea (J.H.M.); and Department of Preventive Medicine, Gachon University Graduate School of Medicine, Incheon, Korea (Y.H.C.)
| | - Cheol Keun Park
- From the Departments of Radiology (S.Y.C., J.E.L.) and Biomedical Statistics (B.R.L.), Soonchunhyang University College of Medicine, Bucheon Hospital, Gyeonggi-do, Korea; Department of Radiology and Center for Imaging Science (S.H.K., J.E.L.) and Department of Pathology (C.K.P.), Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Ilwon-Ro, Gangnam-gu, Seoul 06351, Korea; Department of Radiology, Chungnam National University Hospital, Chungnam National University College of Medicine, Daejeon, Korea (J.H.M.); and Department of Preventive Medicine, Gachon University Graduate School of Medicine, Incheon, Korea (Y.H.C.)
| | - Ji Hye Min
- From the Departments of Radiology (S.Y.C., J.E.L.) and Biomedical Statistics (B.R.L.), Soonchunhyang University College of Medicine, Bucheon Hospital, Gyeonggi-do, Korea; Department of Radiology and Center for Imaging Science (S.H.K., J.E.L.) and Department of Pathology (C.K.P.), Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Ilwon-Ro, Gangnam-gu, Seoul 06351, Korea; Department of Radiology, Chungnam National University Hospital, Chungnam National University College of Medicine, Daejeon, Korea (J.H.M.); and Department of Preventive Medicine, Gachon University Graduate School of Medicine, Incheon, Korea (Y.H.C.)
| | - Ji Eun Lee
- From the Departments of Radiology (S.Y.C., J.E.L.) and Biomedical Statistics (B.R.L.), Soonchunhyang University College of Medicine, Bucheon Hospital, Gyeonggi-do, Korea; Department of Radiology and Center for Imaging Science (S.H.K., J.E.L.) and Department of Pathology (C.K.P.), Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Ilwon-Ro, Gangnam-gu, Seoul 06351, Korea; Department of Radiology, Chungnam National University Hospital, Chungnam National University College of Medicine, Daejeon, Korea (J.H.M.); and Department of Preventive Medicine, Gachon University Graduate School of Medicine, Incheon, Korea (Y.H.C.)
| | - Yoon-Hyeong Choi
- From the Departments of Radiology (S.Y.C., J.E.L.) and Biomedical Statistics (B.R.L.), Soonchunhyang University College of Medicine, Bucheon Hospital, Gyeonggi-do, Korea; Department of Radiology and Center for Imaging Science (S.H.K., J.E.L.) and Department of Pathology (C.K.P.), Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Ilwon-Ro, Gangnam-gu, Seoul 06351, Korea; Department of Radiology, Chungnam National University Hospital, Chungnam National University College of Medicine, Daejeon, Korea (J.H.M.); and Department of Preventive Medicine, Gachon University Graduate School of Medicine, Incheon, Korea (Y.H.C.)
| | - Bo Ra Lee
- From the Departments of Radiology (S.Y.C., J.E.L.) and Biomedical Statistics (B.R.L.), Soonchunhyang University College of Medicine, Bucheon Hospital, Gyeonggi-do, Korea; Department of Radiology and Center for Imaging Science (S.H.K., J.E.L.) and Department of Pathology (C.K.P.), Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Ilwon-Ro, Gangnam-gu, Seoul 06351, Korea; Department of Radiology, Chungnam National University Hospital, Chungnam National University College of Medicine, Daejeon, Korea (J.H.M.); and Department of Preventive Medicine, Gachon University Graduate School of Medicine, Incheon, Korea (Y.H.C.)
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15
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Kim HM, Lee BR, Lee ES, Kwon MH, Huh JH, Kwon BE, Park EK, Chang SY, Kweon MN, Kim PH, Ko HJ, Chung CH. iNKT cells prevent obesity-induced hepatic steatosis in mice in a C-C chemokine receptor 7-dependent manner. Int J Obes (Lond) 2017; 42:270-279. [PMID: 28811651 PMCID: PMC5803573 DOI: 10.1038/ijo.2017.200] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 06/19/2017] [Accepted: 07/21/2017] [Indexed: 02/08/2023]
Abstract
Non-alcoholic fatty liver disease and non-alcoholic steatohepatitis are characterized by an increase in hepatic triglyceride content with infiltration of immune cells, which can cause steatohepatitis and hepatic insulin resistance. C-C chemokine receptor 7 (CCR7) is primarily expressed in immune cells, and CCR7 deficiency leads to the development of multi-organ autoimmunity, chronic renal disease and autoimmune diabetes. Here, we investigated the effect of CCR7 on hepatic steatosis in a mouse model and its underlying mechanism. Our results demonstrated that body and liver weights were higher in the CCR7−/− mice than in the wild-type (WT) mice when they were fed a high-fat diet. Further, glucose tolerance and insulin sensitivity were markedly diminished in CCR7−/− mice. The number of invariant natural killer T (iNKT) cells was reduced in the livers of the CCR7−/− mice. Moreover, liver inflammation was detected in obese CCR7−/− mice, which was ameliorated by the adoptive transfer of hepatic mononuclear cells from WT mice, but not through the transfer of hepatic mononuclear cells from CD1d−/− or interleukin-10-deficient (IL-10−/−) mice. Overall, these results suggest that CCR7+ mononuclear cells in the liver could regulate obesity-induced hepatic steatosis via induction of IL-10-expressing iNKT cells.
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Affiliation(s)
- H M Kim
- Department of Global Medical Science, Yonsei University Wonju College of Medicine, Wonju, Korea.,Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - B R Lee
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon, Korea
| | - E S Lee
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - M H Kwon
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - J H Huh
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - B-E Kwon
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon, Korea
| | - E-K Park
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon, Korea
| | - S-Y Chang
- College of Pharmacy, Ajou University, Suwon, Korea
| | - M-N Kweon
- Mucosal Immunology Laboratory, Department of Convergence Medicine, University of Ulsan College of Medicine/Asan Medical Center, Seoul, Korea
| | - P-H Kim
- Department of Molecular Bioscience, School of Biomedical Science, Kangwon National University, Chuncheon, Korea
| | - H-J Ko
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon, Korea
| | - C H Chung
- Department of Global Medical Science, Yonsei University Wonju College of Medicine, Wonju, Korea.,Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
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16
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Ko BJ, Kim YS, Kim SG, Park JH, Lee SH, Jeong SW, Jang JY, Kim HS, Kim BS, Kim SM, Kim YD, Cheon GJ, Lee BR. Relationship between 25-Hydroxyvitamin D Levels and Liver Fibrosis as Assessed by Transient Elastography in Patients with Chronic Liver Disease. Gut Liver 2017; 10:818-25. [PMID: 27114415 PMCID: PMC5003207 DOI: 10.5009/gnl15331] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 09/28/2015] [Accepted: 12/01/2015] [Indexed: 12/11/2022] Open
Abstract
Background/Aims Deficiencies of 25-hydroxyvitamin D (25(OH)D) are prevalent in patients with chronic liver disease (CLD). Liver fibrosis is the main determinant of CLD prognosis. The present study was performed to evaluate the correlation between 25(OH)D levels and liver fibrosis as assessed by transient elastography (TE) in patients with compensated CLD. Methods Serum 25(OH)D levels and liver stiffness were determined in a total of 207 patients who were subjected to the following exclusion criteria: patients with decompensated CLD; patients who had malignancies; patients who were taking medications; and patients who were pregnant. Results The most common etiology was chronic hepatitis B (53.1%). Advanced liver fibrosis (defined by TE [≥9.5 kPa]) was present in 75 patients (36.2%). There was a significant correlation between 25(OH)D deficiency and liver stiffness. Based on the multivariate analysis, the following factors were independently associated with advanced liver fibrosis: 25(OH)D deficiency (odds ratio [OR], 3.46; p=0.004), diabetes mellitus (OR, 3.04; p=0.041), and fibrosis-4 index (OR, 2.01; p<0.001). Conclusions Patients with compensated CLD exhibit a close correlation between vitamin D level and liver stiffness as assessed by TE. Vitamin D deficiency was independently associated with advanced liver fibrosis.
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Affiliation(s)
- Bong Jin Ko
- Digestive Disease Center and Research Institute, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
| | - Young Seok Kim
- Digestive Disease Center and Research Institute, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
| | - Sang Gyune Kim
- Digestive Disease Center and Research Institute, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
| | - Jung Hwan Park
- Digestive Disease Center and Research Institute, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
| | - Sae Hwan Lee
- Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Soung Won Jeong
- Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea
| | - Jae Young Jang
- Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea
| | - Hong Soo Kim
- Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Boo Sung Kim
- Digestive Disease Center and Research Institute, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
| | - Sun Mi Kim
- Digestive Disease Center and Research Institute, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
| | - Young Don Kim
- Department of Internal Medicine, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea
| | - Gab Jin Cheon
- Department of Internal Medicine, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea
| | - Bo Ra Lee
- Department of Biostatistical Consulting, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
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17
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Kim HM, Kim YM, Huh JH, Lee ES, Kwon MH, Lee BR, Ko HJ, Chung CH. α-Mangostin ameliorates hepatic steatosis and insulin resistance by inhibition C-C chemokine receptor 2. PLoS One 2017; 12:e0179204. [PMID: 28598982 PMCID: PMC5466328 DOI: 10.1371/journal.pone.0179204] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 05/25/2017] [Indexed: 12/22/2022] Open
Abstract
Obesity induces various metabolic diseases such as dyslipidemia, nonalcoholic fatty liver disease (NAFLD), and type 2 diabetes. Fat expansion in adipose tissue induces adipose tissue dysfunction and inflammation, insulin resistance, and other metabolic syndromes. α-Mangostin (α-MG) has been previously studied for its anti-cancer, anti-inflammatory, and antioxidant activities. In this study, we investigated the effects of α-MG on adipose tissue inflammation and hepatic steatosis. We categorized study animals into four groups: regular diet control mice, RD mice treated with α-MG, high fat diet-induced obese mice, and HFD mice treated with α-MG. α-MG treatment significantly reduced not only the body, liver, and fat weights, but also plasma glucose, insulin, and triglyceride levels in HFD mice. Additionally, adiponectin levels of α-MG-treated mice were significantly higher than those of control HFD mice. Immunohistochemistry of liver and adipose tissue showed that CD11c expression was reduced in α-MG fed obese mice. α-MG treatment of HFD mice down-regulated the adipose-associated inflammatory cytokines and CCR2 in both liver and adipose tissue. Moreover, glucose tolerance and insulin sensitivity were significantly improved in α-MG fed obese mice. α-Mangostin ameliorates adipose inflammation and hepatic steatosis in HFD-induced obese mice.
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Affiliation(s)
- Hong Min Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - You Mi Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Ji Hye Huh
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Eun Soo Lee
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Mi Hye Kwon
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Bo Ra Lee
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon, Korea
| | - Hyun-Jeong Ko
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon, Korea
| | - Choon Hee Chung
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
- * E-mail:
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18
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Zhao Y, Jin J, Boyle JW, Lee BR, Day DP, Susanti D, Clarkson GJ, Chan PWH. Silver-Catalyzed 1,3-Acyloxy Migration/Diels–Alder Reaction of 1,9-Dien-4-yne Esters to Partially Hydrogenated Isoquinolines. J Org Chem 2017; 82:2826-2834. [DOI: 10.1021/acs.joc.7b00048] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yichao Zhao
- School
of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Jianwen Jin
- School
of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | | | - Bo Ra Lee
- School
of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - David Philip Day
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Dewi Susanti
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Guy James Clarkson
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Philip Wai Hong Chan
- School
of Chemistry, Monash University, Clayton, Victoria 3800, Australia
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
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19
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Park SH, Park CJ, Lee BR, Kim MJ, Han MY, Cho YU, Jang S. Establishment of Age- and Gender-Specific Reference Ranges for 36 Routine and 57 Cell Population Data Items in a New Automated Blood Cell Analyzer, Sysmex XN-2000. Ann Lab Med 2017; 36:244-9. [PMID: 26915613 PMCID: PMC4773265 DOI: 10.3343/alm.2016.36.3.244] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 10/23/2015] [Accepted: 12/16/2015] [Indexed: 11/19/2022] Open
Abstract
We established age- and gender-specific reference ranges for the 36 routine complete blood cell (CBC) and 57 cell population data (CPD) items in the Sysmex XN-2000 (Sysmex, Japan). In total, 280 peripheral blood samples were obtained from an equal number of healthy adults. Values for 36 routine items and 57 CPD items were obtained for each sample, and the results were categorized into six subgroups (N>39 in each subgroup) according to patient age (20-40, 41-60, and >60 yr) and gender (male and female), and compared with respect to age and gender differences. The majority of data items (22 of 36 routine CBC items and 44 of 57 CPD items) exhibited significant differences (P≤0.05) in their results with respect to age or gender, and several red cell-, lymphocyte-, and platelet-related data tended to decrease in women or older adults. These results provide a basis for establishing age- and gender-specific reference ranges for routine and CPD items in Sysmex XN-2000. Furthermore, these reference ranges could be used to determine clinical significance for new items of Sysmex XN-2000 in further studies.
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Affiliation(s)
- Sang Hyuk Park
- Department of Laboratory Medicine, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea.,Department of Laboratory Medicine, Pusan National University School of Medicine, Pusan National University Hospital, Busan; Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Chan Jeoung Park
- Department of Laboratory Medicine, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea.
| | - Bo Ra Lee
- Department of Laboratory Medicine, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - Mi Jeong Kim
- Department of Laboratory Medicine, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - Min Young Han
- Department of Laboratory Medicine, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - Young Uk Cho
- Department of Laboratory Medicine, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - Seongsoo Jang
- Department of Laboratory Medicine, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
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20
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Kim M, Suh YA, Oh JH, Lee BR, Kim J, Jang SJ. KIF3A binds to β-arrestin for suppressing Wnt/β-catenin signalling independently of primary cilia in lung cancer. Sci Rep 2016; 6:32770. [PMID: 27596264 PMCID: PMC5011747 DOI: 10.1038/srep32770] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 08/15/2016] [Indexed: 02/08/2023] Open
Abstract
Aberrant Wnt/β-catenin signalling is implicated in the progression of several human cancers, including non-small cell lung cancer (NSCLC). However, mutations in Wnt/β-catenin pathway components are uncommon in NSCLC, and their epigenetic control remains unclear. Here, we show that KIF3A, a member of the kinesin-2 family, plays a role in suppressing Wnt/β-catenin signalling in NSCLC cells. KIF3A knockdown increases both β-catenin levels and transcriptional activity with concomitant promotion of malignant potential, such as increased proliferation and migration and upregulation of stemness markers. Because KIF3A binds β-arrestin, KIF3A depletion allows β-arrestin to form a complex with DVL2 and axin, stabilizing β-catenin. Although primary cilia, whose biogenesis requires KIF3A, are thought to restrain the Wnt response, pharmacological inhibition of ciliogenesis failed to increase β-catenin activity in NSCLC cells. A correlation between KIF3A loss and a poorer NSCLC prognosis as well as β-catenin and cyclin D1 upregulation further suggests that KIF3A suppresses Wnt/β-catenin signalling and tumourigenesis in NSCLC.
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Affiliation(s)
- Minsuh Kim
- Biomedical science and engineering interdisciplinary program, KAIST, Daejeon, South Korea.,Asan Institute for Life Sciences, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Young-Ah Suh
- Asan Institute for Life Sciences, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Ju-Hee Oh
- Asan Institute for Life Sciences, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Bo Ra Lee
- Asan Institute for Life Sciences, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Joon Kim
- Biomedical science and engineering interdisciplinary program, KAIST, Daejeon, South Korea.,Graduate School of Medical Science and Engineering, KAIST, Daejeon, South Korea
| | - Se Jin Jang
- Asan Institute for Life Sciences, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea.,Asan Center for Cancer Genome Discovery, Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
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21
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Kim M, Suh YA, Oh JH, Lee BR, Kim J, Jang SJ. Abstract 1176: The role of KIF3A in the suppression of canonical Wnt signaling through the KIF3A and β-arrestin complex, independent of the ciliary mechanism, in non-small cell lung cancer (NSCLC). Cancer Res 2016. [DOI: 10.1158/1538-7445.am2016-1176] [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
Aberrant Wnt/β-catenin signaling is implicated in the progression of several human cancers, including non-small-cell lung cancer (NSCLC). However, mutations in Wnt/β-catenin pathway com-ponents are uncommon in NSCLC, and epigenetic mechanisms controlling the Wnt/β-catenin path-way remain unclear. Here, we show that KIF3A, a member of the kinesin-2 motor family, plays a key role in suppressing Wnt/β-catenin signaling in NSCLC cells. Knockdown of KIF3A increases both β-catenin levels and transcriptional activity, with a concomitant promotion of malignant phenotypes, such as enhanced proliferation and migration, and upregulation of stemness markers. KIF3A binds to β-arrestin, and KIF3A depletion allows β-arrestin to form a complex with DVL2 and AXIN, result-ing in β-catenin stabilization. Although primary cilia, of which the biogenesis requires KIF3A, are thought to restrain the Wnt response, pharmacological inhibition of ciliogenesis does not enhance β-catenin activity in NSCLC cells. A correlation between KIF3A loss and worse NSCLC prognosis as well as upregulation of β-catenin and Cyclin D1 further suggests that KIF3A is a suppressor of Wnt/β-catenin signaling and tumorigenesis in NSCLC.
Citation Format: Minsuh Kim, Yong-Ah Suh, Ju-hee Oh, Bo Ra Lee, Joon Kim, Se Jin Jang. The role of KIF3A in the suppression of canonical Wnt signaling through the KIF3A and β-arrestin complex, independent of the ciliary mechanism, in non-small cell lung cancer (NSCLC). [abstract]. In: Proceedings of the 107th Annual Meeting of the American Association for Cancer Research; 2016 Apr 16-20; New Orleans, LA. Philadelphia (PA): AACR; Cancer Res 2016;76(14 Suppl):Abstract nr 1176.
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Affiliation(s)
- Minsuh Kim
- 1Asan institute for life sciences, Seoul, Republic of Korea
| | - Yong-Ah Suh
- 1Asan institute for life sciences, Seoul, Republic of Korea
| | - Ju-hee Oh
- 1Asan institute for life sciences, Seoul, Republic of Korea
| | - Bo Ra Lee
- 1Asan institute for life sciences, Seoul, Republic of Korea
| | - Joon Kim
- 2Graduate School of Medical Science & Engineering, KAIST, Daejeon, Republic of Korea
| | - Se Jin Jang
- 3Department of Pathology, Asan Medical Center, Seoul, Republic of Korea
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Yi J, Cha JG, Lee YK, Lee BR, Jeon CH. MRI of the anterior talofibular ligament, talar cartilage and os subfibulare: Comparison of isotropic resolution 3D and conventional 2D T2-weighted fast spin-echo sequences at 3.0 T. Skeletal Radiol 2016; 45:899-908. [PMID: 26992909 DOI: 10.1007/s00256-016-2367-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 03/03/2016] [Accepted: 03/07/2016] [Indexed: 02/02/2023]
Abstract
PURPOSE To determine the accuracy of a three-dimensional (3D) T2-weighted fast spin-echo (FSE) magnetic resonance (MR) sequence compared with two-dimensional (2D) sequence for diagnosing anterior talofibular ligament (ATFL) tears, chondral lesion of the talus (CLT) and os subfibulare/avulsion fracture of the distal fibula (OSF). MATERIALS AND METHODS Thirty-five patients were included, who had undergone ankle MRI with 3D T2-weighted FSE and 2D T2-weighted FSE sequences, as well as subsequent ankle arthroscopy, between November 2013 and July 2014. Each MR imaging sequence was independently scored by two readers retrospectively for the presence of ATFL tears, CLT and OSF. The area under the receiver operating curve (AUC) was compared to determine the discriminatory power of the two image sequences. Interobserver agreement was expressed as unweighted kappa value. RESULTS Arthroscopic findings confirmed 21 complete tears of the ATFL, 14 partial tears of the ATFL, 17 CLTs and 7 OSFs. There were no significant differences in the diagnoses of ATFL tears (p = 0.074-0.501), CLT (p = 0.090-0.450) and OSF (p = 0.317) obtained from the 2D and 3D sequences by either reader. The interobserver agreement rates between two readers using the 3D T2-weighted FSE sequence versus those obtained with the 2D sequence were substantial (κ = 0.659) versus moderate (κ = 0.553) for ATFL tears, moderate (κ = 0.499) versus substantial (κ = 0.676) for CLT and substantial (κ = 0.621) versus substantial (κ = 0.689) for OSF. CONCLUSION Three-dimensional isotropic T2-weighted FSE MRI of the ankle resulted in no statistically significant difference in diagnostic performance compared to two-dimensional T2-weighted FSE MRI in the evaluation of ATFL tears, CLTs and OSFs.
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Affiliation(s)
- Jisook Yi
- Department of Radiology, Soonchunhyang University Bucheon Hospital, 170 Jomaru-ro, Wonmi-gu, Bucheon-si, 14584, Korea
| | - Jang Gyu Cha
- Department of Radiology, Soonchunhyang University Bucheon Hospital, 170 Jomaru-ro, Wonmi-gu, Bucheon-si, 14584, Korea.
| | - Young Koo Lee
- Department of Orthopedics, Soonchunhyang University Bucheon Hospital, 170 Jomaru-ro, Wonmi-gu, Bucheon-si, 14584, Korea
| | - Bo Ra Lee
- Department of Biomedical Statistics, Soonchunhyang University Bucheon Hospital, 170 Jomaru-ro, Wonmi-gu, Bucheon-si, 14584, Korea
| | - Chan Hong Jeon
- Division of Rheumatology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, 170 Jomaru-ro, Wonmi-gu, Bucheon-si, 14584, Korea
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Lee WJ, Lee JH, Lee BR. Fundus autofluorescence imaging patterns in central serous chorioretinopathy according to chronicity. Eye (Lond) 2016; 30:1336-1342. [PMID: 27285318 DOI: 10.1038/eye.2016.113] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 04/14/2016] [Indexed: 01/29/2023] Open
Abstract
PurposeTo investigate the time-period characteristics associated with morphologic changes in central serous chorioretinopathy (CSC) using fundus autofluorescence (FAF).Patients and methodsRetrospective, cross-sectional observational case series. Patients were classified into three groups: acute and chronic according to the onset of subjective symptoms of 6 weeks and sequelae patients who have history and symptoms but no serous retinal detachment (SRD). We compared FAF images to obtain characteristic findings according to the chronicity.ResultsA total of 52 eyes were included in this study. Acute CSC eyes were characterized by decreased FAF intensity at the leakage point in 13/22 eyes (56.5%) and staining patterns with various levels of fluorescence signal (hyperautofluorescent (10 eyes, 43.5%), hypoautofluorescent (1 eye, 4.3%), and minimal changes (12 eyes, 52.2%)) in the area of SRD. In chronic CSC eyes, hyperautofluorescent (14 eyes, 63.6%) or minimal changes (8 eyes, 36.4%) were observed in the area of SRD. Discrete dots with increased FAF intensity were observed in chronic CSC eyes (P<0.001). Eyes with sequelae of CSC had mixed FAF patterns over areas of retinal pigment epithelium (RPE) atrophy in seven eyes (100%, P<0.001)) and descending tracts which showed various FAF intensities according to the RPE and photoreceptor status (P<0.001).ConclusionFAF imaging patterns in CSC eyes differ according to the course of the disease, reflecting RPE and outer retinal changes. Detailed investigation using FAF could help to estimate the duration of CSC and determine the proper treatment modality.
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Affiliation(s)
- W J Lee
- Department of Ophthalmology, Hanyang University College of Medicine, Seoul, Korea
| | - J-H Lee
- Department of Ophthalmology, Hanyang University College of Medicine, Seoul, Korea
| | - B R Lee
- Department of Ophthalmology, Hanyang University College of Medicine, Seoul, Korea
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Upadhaya SD, Lee BR, Park JW, Kim IH. Effects of Supplementation of Ionized or Chelated Water-Soluble Mineral Mixture on the Live Performance, Nutrient Digestibility, Blood Profile, Egg Quality, and Excreta Microbiota of Laying Hens. Rev Bras Cienc Avic 2016. [DOI: 10.1590/1806-9061-2015-0023] [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] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - BR Lee
- Dankook University, Brazil
| | | | - IH Kim
- Dankook University, Brazil
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Choi SY, Kim SH, Jang KM, Kang TW, Song KD, Moon JY, Choi YH, Lee BR. The value of contrast-enhanced dynamic and diffusion-weighted MR imaging for distinguishing benign and malignant splenic masses. Br J Radiol 2016; 89:20160054. [PMID: 27164031 DOI: 10.1259/bjr.20160054] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
OBJECTIVE To assess the value of contrast-enhanced dynamic and diffusion-weighted (DW) MR imaging for differentiating malignant from benign splenic lesions. METHODS This retrospective study included 51 patients with 35 benign and 16 malignant focal splenic lesions. All patients underwent contrast-enhanced dynamic and DW MR imaging. Two radiologists evaluated the MR images in consensus. Significant imaging findings on univariate and multivariate analyses were identified and their diagnostic performance for predicting the malignant splenic lesion was analyzed. Using receiver-operating characteristic analysis, the optimal cut-off of the apparent diffusion coefficient (ADC) value corresponding to the maximal Youden's index (J) for differentiating the two groups was determined. RESULTS In univariate analysis, low signal intensity (SI) on the arterial, portal and 3-min delayed-phase images, high or iso SI on the DW image, iso or low SI on the ADC map, the presence of diffusion restriction and arterial hypovascularity with a progressive enhancement pattern were more frequently observed (p < 0.05) in malignant splenic lesions. The ADC value was significantly lower for malignancy than for benignancy (0.78 ± 0.24 vs 1.16 ± 0.53 × 10(-3) mm(2) s(-1); p < 0.001). The optimal cut-off ADC value for differentiating the two groups was 0.995 × 10(-3) mm(2) s(-1). In multivariate analysis, findings that differentiated malignant from benign splenic lesions were low SI on the 3-min delayed-phase image [odds ratio (OR), 27.68; p = 0.006] and the presence of diffusion restriction (OR, 48.01; p = 0.002). When two of these criteria were combined, 12 (75.0%) of 16 malignant splenic masses were identified with a specificity of 100%. CONCLUSION Contrast-enhanced dynamic and DW MR imaging may be helpful for differentiating malignant from benign splenic lesions. A low SI on the 3-min delayed phase and diffusion restriction are the most reliable findings for the differentiation of malignant from benign splenic lesions. ADVANCES IN KNOWLEDGE Dynamic and DW MR imaging help in distinguishing malignant from benign splenic lesions. A low SI on the 3-min delayed phase and diffusion restriction are the most reliable findings for the differentiation of malignant from benign splenic lesions.
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Affiliation(s)
- Seo-Youn Choi
- 1 Department of Radiology, Soonchunhyang University College of Medicine, Bucheon Hospital, Bucheon, Republic of Korea
| | - Seong Hyun Kim
- 2 Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Kyung Mi Jang
- 2 Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Tae Wook Kang
- 2 Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Kyoung Doo Song
- 2 Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Ji Yoon Moon
- 3 Department of Radiology, Kangdong Seong-Sim Hospital, Hallym University College of Medicine, Seoul, Republic of Korea
| | - Yoon-Hyeong Choi
- 4 Department of Preventive Medicine, Gachon University Graduate School of Medicine, Incheon, Republic of Korea
| | - Bo Ra Lee
- 5 Department of Biomedical Statistics, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
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Lee BR, Ko YM, Cho MH, Yoon YR, Kye SH, Park YK. Effects of 12-week Vegetarian Diet on the Nutritional Status, Stress Status and Bowel Habits in Middle School Students and Teachers. Clin Nutr Res 2016; 5:102-11. [PMID: 27152300 PMCID: PMC4855038 DOI: 10.7762/cnr.2016.5.2.102] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 04/18/2016] [Accepted: 04/21/2016] [Indexed: 11/19/2022] Open
Abstract
This study investigated the effect of switching normal diet to vegetarian diet rich in vegetables and fruits for school foodservice and home meal on the nutritional status, bowel habit improvement and stress reduction of teachers and adolescents. A total of 40 research subjects (26 students, 14 teachers) from one middle school voluntarily participated in the research. Questionnaire surveys and blood analysis were conducted before and after a 12-week vegetarian diet period. The participants were asked on their dietary habit, bowel habit and stress measurement. After 12 weeks, reduction of BMI (kg/m2) in the students (p < 0.05) and reduction of TC (mg/dL) in both teachers and students (p < 0.05) were observed. Also reduction of LDL-C (mg/dL) was observed in the teachers (p < 0.05) whereas serum calcium and Vitamin B12 was increased in the students and teachers (p < 0.005). The teacher's stress level was reduced (p < 0.05) after the 12-week vegetarian diet. As for the changes in bowel habit, the number of the students and teachers classified as experiencing functional constipation was decreased respectively from 10 to 7, from 7 to 5. Based on the result, it is considered that the vegetarian diet rich in fruits and vegetables improved general health status of study subjects suggesting that such a dietary habit would substantially contribute to improving nutritional status and bowel habit.
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Affiliation(s)
- Bo Ra Lee
- Department of Medical Nutrition, Kyung Hee University, Yongin 17104, Korea
| | - Yu Mi Ko
- Department of Medical Nutrition, Kyung Hee University, Yongin 17104, Korea
| | - Mi Hee Cho
- Buksung Middle School, Gwangju 61246, Korea
| | | | - Seung Hee Kye
- Department of Nutrition Education, Gachon University, Seongnam 13120, Korea
| | - Yoo Kyoung Park
- Department of Medical Nutrition, Kyung Hee University, Yongin 17104, Korea.; Institute of Medical Nutrition, Kyung Hee University, Seoul 02447, Korea
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Lee BR, Jang J, Lee SY, Song JW. Intraoperative paravalvular leakage after sutureless aortic valve replacement corrected with secondary balloon dilatation -A case report-. Anesth Pain Med (Seoul) 2016. [DOI: 10.17085/apm.2016.11.2.186] [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: 11/17/2022] Open
Affiliation(s)
- Bo Ra Lee
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Junheum Jang
- *Department of Anesthesiology and Pain Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Shin-Young Lee
- †Department of Thoracic and Cardiovascular Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Jong Wook Song
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea
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Kothandaraman P, Zhao Y, Lee BR, Le Ng CJ, Lee JY, Ayers BJ, Chan PWH. Cover Picture: Gold-Catalyzed Aminoalkenylation of β-Amino-1, n
-Diynols to Cycloalkyl-, Piperidinyl- and Pyranyl-Fused Pyrroles (Adv. Synth. Catal. 9/2016). Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600380] [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: 11/06/2022]
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Kothandaraman P, Zhao Y, Lee BR, Le Ng CJ, Lee JY, Ayers BJ, Chan PWH. Gold‐Catalyzed Aminoalkenylation of β‐Amino‐1,
n
‐Diynols to Cycloalkyl‐, Piperidinyl‐ and Pyranyl‐Fused Pyrroles. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600011] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Prasath Kothandaraman
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Yichao Zhao
- School of Chemistry Monash University Clayton, Victoria 3800 Australia
| | - Bo Ra Lee
- School of Chemistry Monash University Clayton, Victoria 3800 Australia
| | - Clarrisa Jia Le Ng
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Jun Yi Lee
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Benjamin James Ayers
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Philip Wai Hong Chan
- School of Chemistry Monash University Clayton, Victoria 3800 Australia
- Department of Chemistry University of Warwick Coventry CV4 7AL U.K
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Zhong HJ, Lee BR, Boyle JW, Wang W, Ma DL, Hong Chan PW, Leung CH. Structure-based screening and optimization of cytisine derivatives as inhibitors of the menin-MLL interaction. Chem Commun (Camb) 2016; 52:5788-91. [PMID: 27004852 DOI: 10.1039/c6cc01079b] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The natural product-like compound 1 was identified as a direct inhibitor of the menin-MLL interaction by in silico screening. Structure-based optimization furnished analogue 1a, which showed significantly higher potency than both the lead structure 1 and the reference compound MI-2.
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Affiliation(s)
- Hai-Jing Zhong
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China.
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Ham SY, Lee BR, Ha T, Kim J, Na S. Recurrent Desaturation Events due to Opioid-Induced Chest Wall Rigidity after Low Dose Fentanyl Administration. Korean J Crit Care Med 2016. [DOI: 10.4266/kjccm.2016.31.2.118] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Sung Yeon Ham
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Bo Ra Lee
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Taehoon Ha
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Jeongmin Kim
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Sungwon Na
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea
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Yan J, Tay GL, Neo C, Lee BR, Chan PWH. Gold-Catalyzed Cycloisomerization and Diels-Alder Reaction of 1,6-Diyne Esters with Alkenes and Diazenes to Hydronaphthalenes and -cinnolines. Org Lett 2015; 17:4176-9. [PMID: 26291118 DOI: 10.1021/acs.orglett.5b01935] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A method for the efficient preparation of hydronaphthalene and -cinnoline derivatives by Au(I)-catalyzed cycloisomerzation of 1,6-diyne esters followed by a Diels-Alder reaction with alkenes or diazenes under mild conditions at room temperature with catalyst loadings as low as 1 mol % is described.
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Affiliation(s)
- Jianming Yan
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University , Singapore 637371, Singapore
| | - Guan Liang Tay
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University , Singapore 637371, Singapore
| | - Cuien Neo
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University , Singapore 637371, Singapore
| | - Bo Ra Lee
- School of Chemistry, Monash University , Clayton, Victoria 3800, Australia
| | - Philip Wai Hong Chan
- School of Chemistry, Monash University , Clayton, Victoria 3800, Australia.,Department of Chemistry, University of Warwick , Coventry, CV4 7AL, United Kingdom
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Lim Y, Cha JG, Yi J, Kang SJ, Lee YK, Lee SJ, Kim HJ, Lee BR. Topographical and sex variations in the T2 relaxation times of articular cartilage in the ankle joints of healthy young adults using 3.0T MRI. J Magn Reson Imaging 2015. [PMID: 26219078 DOI: 10.1002/jmri.25004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
PURPOSE To prospectively evaluate topographical and sex variations in the T2 relaxation values of tibiotalar cartilage (TTC) of healthy young adults. MATERIALS AND METHODS Sagittal 8-echo multiecho spin-echo T2 maps of TTC were acquired using a 3.0T MR in 25 male and 25 female healthy young adult participants. Quantitative measurements of T2 values in tibial cartilage (TBC) and talar cartilage (TLC) were obtained from three zones (anterior zone, AZ; middle zone, MZ; and posterior zone, PZ) and from four compartments (medial compartment, MC; midmedial compartment, MMC; midlateral compartment, MLC; and lateral compartment, LC) of TBC and TLC in the sagittal plane. RESULTS The T2 values of AZ (for TBC, 29.31 msec; for TLC, 35.81 msec) and MZ (for TBC, 28.56 msec; for TLC, 36.12 msec) in males were significantly higher than those in females (for AZ of TBC, 26.99 msec; for AZ of TLC, 33.56 msec; for MZ of TBC, 25.88 msec; for MZ of TLC, 31.85 msec) (for TBC, AZ, P = 0.009, MZ, P = 0.002; for TLC, AZ, P = 0.047, MZ, P = 0.001). Except for MMC and MLC of TBC (MMC, P = 0.02, MLC, P = 0.03), TTC T2 values did not differ significantly between these compartment in either group (for TBC, MC, P = 0.27, LC, P = 0.37; for TLC, MC, P = 0.26, MMC, P = 0.08, MLC, P = 0.30, LC, P = 0.10). CONCLUSION We found significant sex and topographic variations among TTC T2 values of healthy young adults. Acknowledgment of the significant topographical and sex variations in cartilage T2 values may minimize misinterpretation of ankle joint TTC T2 mapping data.
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Affiliation(s)
- Youngsik Lim
- Department of Radiology, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Jang Gyu Cha
- Department of Radiology, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Jisook Yi
- Department of Radiology, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Sung Jin Kang
- Department of Radiology, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Young Koo Lee
- Department of Orthopedics, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Sun Joo Lee
- Department of Radiology, College of Medicine, Inje University, Busan Paik Hospital, Korea
| | - Hyun-Joo Kim
- Department of Radiology, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - Bo Ra Lee
- Department of Biomedical Statistics, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
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Chan PWH, Teo WT, Koh SWY, Lee BR, Ayers BJ, Ma DL, Leung CH. Silver Triflate Catalyzed Cyclopropyl Carbinol Rearrangement for Benzo[b]oxepine and 2H-Chromene Synthesis. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500374] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Park SW, Lee D, Lee HR, Moon HJ, Lee BR, Ko WK, Song SJ, Lee SJ, Shin K, Jang W, Yi JK, Im SG, Kwon IK. Generation of functionalized polymer nanolayer on implant surface via initiated chemical vapor deposition (iCVD). J Colloid Interface Sci 2015; 439:34-41. [DOI: 10.1016/j.jcis.2014.10.018] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Revised: 10/06/2014] [Accepted: 10/14/2014] [Indexed: 12/25/2022]
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Soh S, Park WK, Kang SW, Lee BR, Lee JR. Sex differences in remifentanil requirements for preventing cough during anesthetic emergence. Yonsei Med J 2014; 55:807-14. [PMID: 24719152 PMCID: PMC3990090 DOI: 10.3349/ymj.2014.55.3.807] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 08/25/2013] [Accepted: 09/11/2013] [Indexed: 12/19/2022] Open
Abstract
PURPOSE Target-controlled infusion (TCI) of remifentanil can suppress coughing during emergence from general anesthesia; nevertheless, previous studies under different clinical conditions recommend significantly different effective effect-site concentrations (effective Ce) of remifentanil for 50% of patients (EC₅₀). The differences among these studies include type of surgery and patient sex. In recent years, study of sex differences in regards to anesthetic pharmacology has drawn greater interest. Accordingly, we attempted to determine the effective Ce of remifentanil for preventing cough for each sex under the same clinical conditions. MATERIALS AND METHODS Twenty female and 25 male ASA physical status I-II grade patients between the ages of 20 and 46 years who were undergoing thyroidectomy were enrolled in this study. The effective Ce of remifentanil for preventing cough was determined for each sex using the isotonic regression method with a bootstrapping approach, following Dixon's up-and-down method. RESULTS Isotonic regression with a bootstrapping approach revealed that the estimated EC₅₀ of remifentanil for preventing coughing during emergence was significantly lower in females {1.30 ng/mL [83% confidence interval (CI), 1.20-1.47 ng/mL]} than in males [2.57 ng/mL (83% CI, 2.45-2.70 ng/mL)]. Mean EC₅₀ in females was also significantly lower than in males (1.23±0.21 ng/mL vs. 2.43±0.21 ng/mL, p<0.001). Mean arterial pressure, heart rate, and respiratory rate over time were not significantly different between the sexes. CONCLUSION When using remifentanil TCI for cough prevention during anesthetic emergence, patient sex should be a considered for appropriate dosing.
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Affiliation(s)
- Sarah Soh
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Wyun Kon Park
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Korea
- Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Wook Kang
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Bo Ra Lee
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Jeong Rim Lee
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Korea
- Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea
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Lee BR, Lee JR, Kim MS. Anesthetic management of a patient with obstructive prosthetic aortic valve dysfunction: a case report. Korean J Anesthesiol 2014; 66:160-3. [PMID: 24624276 PMCID: PMC3948445 DOI: 10.4097/kjae.2014.66.2.160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Revised: 12/25/2012] [Accepted: 02/04/2013] [Indexed: 11/10/2022] Open
Abstract
We present a 55-year-old female patient who underwent burr-hole drainage due to chronic subdural hematoma, with obstructive prosthetic aortic valve dysfunction. Anesthetic management of a patient with severe obstructive prosthetic aortic valve dysfunction can be challenging. Similar considerations should be given to patients with aortic stenosis with an additional emphasis on thrombotic complication due to discontinuation of anticoagulation, which may further jeopardize the valve dysfunction. This case emphasizes the importance of a comprehensive understanding of the etiology and hemodynamic consequences of obstructive prosthetic valve dysfunction and the adequacy of anticoagulation for patients undergoing noncardiac surgery even after a successful valve replacement.
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Affiliation(s)
- Bo Ra Lee
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Jeong-Rim Lee
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Min Soo Kim
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea
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Meekins ME, Oberhelman SS, Lee BR, Gardner BM, Cha SS, Singh RJ, Pettifor JM, Fischer PR, Thacher TD. Pharmacokinetics of daily versus monthly vitamin D3 supplementation in non-lactating women. Eur J Clin Nutr 2014; 68:632-4. [PMID: 24424073 DOI: 10.1038/ejcn.2013.278] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Revised: 11/08/2013] [Accepted: 11/25/2013] [Indexed: 01/01/2023]
Abstract
This study compared serum cholecalciferol and 25-hydroxyvitamin D (25(OH)D) concentrations over four weeks in healthy, non-pregnant, non-lactating females aged 18-40 years, who were randomized to oral cholecalciferol 5000 international units (IU) daily for 28 days or a single dose of 150 000 IU. The study was conducted in Rochester, MN in March and April of 2010. We found no difference in mean 25(OH)D between treatment groups on study day 0 or day 28 (P=0.14 and 0.28, respectively). The daily group had 11 more days of detectable serum cholecalciferol than the single-dose group (P<0.001). There was no difference observed in cholecalciferol area under the curve (AUC28) between groups (P=0.49). However, the single-dose group had a significantly greater mean 25(OH)D AUC28 compared with the daily group (P<0.001).
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Affiliation(s)
- M E Meekins
- Department of Pharmacy, Mayo Clinic, Rochester, MN, USA
| | - S S Oberhelman
- Department of Family Medicine, Mayo Clinic, Rochester, MN, USA
| | - B R Lee
- Department of Pharmacy, Mayo Clinic, Rochester, MN, USA
| | - B M Gardner
- Department of Pharmacy, Mayo Clinic, Rochester, MN, USA
| | - S S Cha
- Department of Biostatistics and Informatics, Mayo Clinic, Rochester, MN, USA
| | - R J Singh
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - J M Pettifor
- Developmental Pathways for Health Research Unit, Department of Paediatrics, University of Witwatersrand, Johannesburg, South Africa
| | - P R Fischer
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, MN, USA
| | - T D Thacher
- Department of Family Medicine, Mayo Clinic, Rochester, MN, USA
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Lee BR, Song JW, Kwak YL, Yoo KJ, Shim JK. The influence of hypothermia on transfusion requirement in patients who received clopidogrel in proximity to off-pump coronary bypass surgery. Yonsei Med J 2014; 55:224-31. [PMID: 24339311 PMCID: PMC3874931 DOI: 10.3349/ymj.2014.55.1.224] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
PURPOSE Hypothermia adversely affects the coagulation that could be of clinical significance in patients receiving clopidogrel. We evaluated the influence of hypothermia on transfusion requirements in patients undergoing isolated off-pump coronary artery bypass surgery (OPCAB) who continued clopidogrel use within 5 days of surgery. MATERIALS AND METHODS Protocol-based, prospectively entered data of 369 patients were retrospectively reviewed. The time-weighted average of intraoperative temperatures and the temperature upon ICU admission (TWA-temp) was assessed. Patients were divided into normothermia (≥36°C, n=224) and hypothermia (<36°C, n=145) group. The transfusion requirement for perioperative blood loss was assessed and compared. RESULTS Patients with hypothermia were older and had lower body surface area (BSA) than patients with normothermia. Age and BSA adjusted transfusion requirement was significantly larger in the hypothermia group [patients requiring transfusion: 64% versus 48%, p=0.003; number of units: 0 (0-2) units versus 2 (0-3) units, p=0.002]. In multivariate analysis of predictors of perioperative multiple transfusion requirements, hypothermia was identified as an independent risk factor along with age, female gender, BSA, chronic kidney disease, and congestive heart failure. CONCLUSION Hypothermia was associated with increased transfusion requirement in patients undergoing OPCAB who received clopidogrel in proximity to surgery. Considering the high prevalence and the possibility of hypothermia being a modifiable risk factor, aggressive measures should be undertaken to maintain normothermia in those patients.
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Affiliation(s)
- Bo Ra Lee
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Korea.
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Rengaraj D, Lee BR, Choi JW, Lee SI, Seo HW, Kim TH, Choi HJ, Song G, Han JY. Gene pathways and cell cycle-related genes in cultured avian primordial germ cells. Poult Sci 2013; 91:3167-77. [PMID: 23155027 DOI: 10.3382/ps.2012-02279] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Primordial germ cells (PGC) from early embryos are applicable to various kinds of research, including the production of transgenic animals. Primordial germ cells eventually migrate and differentiate into germ cells in the gonads, where they settle and rapidly proliferate. However, the proliferation rate of PGC is low in early embryos, and there are many significant pathways that mediate PGC activity. Therefore, in vitro culture of PGC from early embryos with efficient growth factors has been necessary. Recently, we cultured chicken PGC from embryonic d 2.5 with basic fibroblast growth factor and characterized the PGC through analysis of cell morphology, survival, proliferation, and apoptosis. However, large-scale analyses of genes expressed in cultured PGC and the genes involved in associated pathways are limited. The objective of the present investigation was to identify the signaling and metabolic pathways of expressed genes by microarray comparison between PGC and their somatic counterpart, chicken embryonic fibroblasts (CEF). We identified 795 genes that were expressed more predominantly in PGC and 824 genes that were expressed more predominantly in CEF. Among the predominant genes in PGC, 201 were differentially identified in 106 pathways. Among the predominant genes in CEF, 242 were differentially identified in 99 pathways. To further validate the genes involved in at least one candidate pathway, those involved in the cell cycle (12 predominant genes in PGC and 8 predominant genes in CEF) were examined by real-time PCR. To the best of our knowledge, this study is the first to investigate signaling and metabolic pathways in cultured PGC.
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Affiliation(s)
- D Rengaraj
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 151-921, Korea
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Park HJ, Shin JY, Lee BR, Kim HO, Lee PH. Mesenchymal stem cells augment neurogenesis in the subventricular zone and enhance differentiation of neural precursor cells into dopaminergic neurons in the substantia nigra of a parkinsonian model. Cell Transplant 2012; 21:1629-40. [PMID: 22546197 DOI: 10.3727/096368912x640556] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Growing evidence has demonstrated that neurogenesis in the subventricular zone (SVZ) is significantly decreased in Parkinson's disease (PD). Modulation of endogenous neurogenesis would have a significant impact on future therapeutic strategies for neurodegenerative diseases. In the present study, we investigated the augmentative effects of human mesenchymal stem cells (hMSCs) on neurogenesis in a PD model. Neurogenesis was assessed in vitro with 1-methyl-4-phenylpyridinium (MPP(+)) treatment using neural precursor cells (NPCs) isolated from the SVZ and in vivo with a BrdU-injected animal model of PD using 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). Immunochemical analyses were used to measure neurogenic activity. The number of BrdU-ir cells in the SVZ and the substantia nigra (SN) was significantly increased in the hMSC-treated PD group compared with the MPTP-only-treated group. Double-stained cells for BrdU and tyrosine hydroxylase were notably observed in the SN of hMSC-treated PD animals, and they did not colocalize with the nuclear matrix; however, double-stained cells were not detected in the SN of the MPTP-induced PD animal model. Furthermore, hMSC administration increased the expression of the epidermal growth factor receptor (EGFR) in the SVZ of PD animals, and the coculture of hMSCs significantly increased the release of EGF in the medium of MPP(+)-treated NPCs. The present study demonstrated that hMSC administration significantly augmented neurogenesis in both the SVZ and SN of PD animal models, which led to increased differentiation of NPCs into dopaminergic neurons in the SN. Additionally, hMSC-induced modulation of EGF seems to be an underlying contributor to the enhancement of neurogenesis by hMSCs. The modulation of endogenous adult neurogenesis to repair the damaged PD brain using hMSCs would have a significant impact on future strategies for PD treatment.
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Affiliation(s)
- Hyun-Jung Park
- Severance Biomedical Science Institute, Yonsei University, Seoul, South Korea
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Norhafizah M, Malina O, Rukman AH, Lee BR, Ngah ZY, Wan OA, Jamal F. Oh dear ... it's amoebic colitis. Malays J Pathol 2011; 33:57-59. [PMID: 21874754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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Park HJ, Bang G, Lee BR, Kim HO, Lee PH. Neuroprotective effect of human mesenchymal stem cells in an animal model of double toxin-induced multiple system atrophy parkinsonism. Cell Transplant 2010; 20:827-35. [PMID: 21054946 DOI: 10.3727/096368910x540630] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Multiple system atrophy (MSA) is an adult-onset sporadic neurodegenerative disorder of unknown etiology featuring parkinsonism, ataxia, and autonomic failure in any combination. Because disease progression in MSA is rapid and no drug treatment consistently benefits MSA patients in the long term, neuroprotective or regenerative strategies may be invaluable in the management of MSA patients. In this study, we investigated whether human mesenchymal stem cells (hMSCs) had a protective effect on MSA using an animal model of double-toxin-induced MSA parkinsonism (MSA-P). MSA-P was established with coinjections of MPTP and 3-NP; hMSCs were injected into the tail vein 1 day after the last toxin injection. Three groups of mice were compared (i.e., control, MPTP + 3-NP, and MPTP + 3-NP with hMSC treatment) through histopathological, behavioral, and Western blot analyses. In the substantia nigra (SN) and the striatum, 2.0% and 3.8% of total injected hMSCs were observed, respectively. Compared with double-toxin-treated mice, hMSC treatment in double-toxin-treated mice significantly increased survival of TH- and NeuN-immunoreactive cells in the SN and the striatum, with coincident improvement in motor behavior. Additionally, hMSC treatment significantly decreased double-toxin-induced microglial and astroglial activation in the SN and striatum. Western blot analysis showed that hMSC administration in double-toxin-treated mice increased the expression of p-Akt and Bcl-2 and decreased Bax and cytochrome c expression. This study demonstrates that hMSC treatment protected against loss of neurons in the SN and the striatum induced by double toxin exposure, which may be mediated by modulation of inflammatory and cell survival and death signaling-pathway as the hMSCs migrated from the peripheral circulation into the SN and striatum.
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Affiliation(s)
- Hyun-Jung Park
- Neuroscience Graduate Program, Ajou University School of Medicine, Suwon, South Korea
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Lee BR, Kim HK, Park IN, Choi SB, Jung H, Lee HK, Lee SS, Lee YM, Lee HP, Choi SJ, Yum HK. A Case of Pneumocystis Pneumonia Mimicking Acute Eosinophilic Pneumonia in a Patient with AIDS. Tuberc Respir Dis (Seoul) 2010. [DOI: 10.4046/trd.2010.68.2.97] [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: 11/24/2022] Open
Affiliation(s)
- Bo Ra Lee
- Department of Internal Medicine, Inje University Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - Hyun Kook Kim
- Department of Internal Medicine, Inje University Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - I Nae Park
- Department of Internal Medicine, Inje University Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - Sang Bong Choi
- Department of Internal Medicine, Inje University Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - Hoon Jung
- Department of Internal Medicine, Inje University Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - Hyun Kyung Lee
- Department of Internal Medicine, Inje University Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - Sung Soon Lee
- Department of Internal Medicine, Inje University Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - Young Min Lee
- Department of Internal Medicine, Inje University Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - Hyuk Pyo Lee
- Department of Internal Medicine, Inje University Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - Soo Jeon Choi
- Department of Internal Medicine, Inje University Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - Ho-Kee Yum
- Department of Internal Medicine, Inje University Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea
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Kim DH, Yoon JH, Lee KS, Jung YH, Lee BR, Jang JS, Choi DK, Kim SJ, Sun YK, Lee KS. Structural characterization of titanate nanotubes for lithium storage. J Nanosci Nanotechnol 2008; 8:5022-5025. [PMID: 19198383 DOI: 10.1166/jnn.2008.1006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Titanate nanotubes were synthesized by hydrothermal method using various TiO2 precursors as starting materials. The electrochemical properties were investigated by cyclic voltammetric methods. The microstructure and morphology of the synthesized powders were characterized by XRD, TEM. Titanate nanotubes composed of H2Ti2O5 x H2O with outer and inner diameter of approximately 10 nm and 6 nm, and the interlayer spacing was about 0.65 approximately 0.74 nm. Also, the titanate nanotubes showed a discharge capacity of 303 mAh/g and the highest cycle stability because of the open-end and rolled layers with suitable spacing. The relationships between morphology and electrochemical properties have been also discussed.
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Affiliation(s)
- Dong Hyun Kim
- Division of Materials Science and Engineering, Hanyang University, Seoul 133-791, Korea
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Sharifah NA, Lee BR, Clarence-Ko CH, Tan GC, Shiran MS, Naqiyah I, Rohaizak M, Fuad I, Tamil AM. C-erbB-2 onco-protein expression in breast cancer: relationship to tumour characteristics and short-term survival in Universiti Kebansaan Malaysia Medical Centre. Asian Pac J Cancer Prev 2008; 9:663-670. [PMID: 19271345] [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] [Indexed: 05/27/2023] Open
Abstract
Breast cancer is the commonest cancer affecting females in Malaysia, contributing 31% of all newly diagnosed cases amongst Malaysian women. The present retrospective cohort study evaluated the relationship between cerbB- 2 onco-protein overexpression with various tumour characteristics and survival rate of breast cancer patients treated at the Universiti Kebangsaan Malaysia Medical Centre (UKMMC) between 1996-2000. CerbB- 2 oncoprotein overexpression was determined by immunohistochemistry (IHC) and tumors showing 2+ positivity were verified by Fluorescence In Situ Hybridization (FISH). One hundred and seventy two patients were eligible for the study with a short-term follow-up (median) of 5.1 years. C-erbB-2 oncoprotein overexpression correlated with lymph node positivity, oestrogen receptor (ER) and progesterone receptor (PR) negativity. Univariate analyses showed shorter disease free survival (DFS) and overall survival (OS) in patients with cerbB- 2 oncoprotein overexpression, Malay ethnicity, higher tumour grade, lymph node positivity, ER and PR negativity. In a subgroup of patients with c-erbB-2 oncoprotein overexpression, a shorter OS was observed in those with lymph node positivity, ER and PR negativity. In multivariate prognostic analysis, lymph node status, ER status and tumour grading were the strongest independent prognostic factors for both OS and DFS. However, c-erbB-2 status was not a significantly independent prognostic factor, even in subsets with lymph node positive or negative group. C-erbB-2 oncoprotein overexpression correlated well with lymph node status, ER and PR. Shorter OS and DFS were significantly observed in patients with c-erbB-2 oncoprotein overexpression. Lymph node status, ER status and tumour grading were the only three independent prognostic factors for OS and DFS in this study. Although c-erbB-2 expression is obviously important from a biological standpoint, multivariate analysis showed that it is not an independent prognostic indicator in breast carcinoma in the local population.
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Affiliation(s)
- N A Sharifah
- Department of Pathology, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia.
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Tan VES, Jeevanan J, Lee BR. Parapharyngeal abscess complicated by endophthalmitis: a rare presentation of nasopharyngeal carcinoma. J Laryngol Otol 2007; 122:867-70. [PMID: 17498332 DOI: 10.1017/s0022215107008195] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
AbstractObjective:We report an extremely rare case of nasopharyngeal carcinoma presenting as a lateral neck abscess complicated by endogenous bacterial endophthalmitis. Endogenous bacterial endophthalmitis complicating a neck abscess has not been reported in the recent English literature. We discuss the possible pathophysiology of neck abscess as a presenting feature of nasopharyngeal carcinoma, and the relationship between the parapharyngeal abscess and endogenous bacterial endophthalmitis.Case report:A middle-aged Chinese man presented with a left neck abscess associated with progressive vision deterioration and proptosis of the left eye. Incidentally, his random blood glucose was found to be elevated. Nasal endoscopy also revealed bilateral bogginess in the fossa of Rosenmuller. A diagnosis of left neck abscess with endogenous endophthalmitis associated with underlying diabetes mellitus was made. A computed tomography scan of the neck showed a left parapharyngeal abscess. Incision and drainage of the abscess together with biopsy of the nasopharynx was performed. Due to the non-salvageable condition of the left eye, evisceration was also performed. Pus culture studies from the neck abscess grew Klebsiella pneumoniae, and nasopharyngeal biopsy revealed undifferentiated carcinoma.Conclusion:Nasopharyngeal carcinoma is endemic in South East Asia and can have multiple, varied presentations. Therefore, in this setting, the clinician should have a high index of suspicion, especially in a patient from the Chinese ethnic group.
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Affiliation(s)
- V E S Tan
- Department of Otorhinolaryngology, Head & Neck Surgery, Faculty of Medicine, Hospital Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur, Malaysia.
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Abstract
Sequences of candidate chicken testis-specific genes were analysed in order to develop a resource for functional genomic studies of the testis and male germ cells. Tentative consensus sequences (TC) containing expressed sequence tags expressed in testis libraries were selected from the TIGR Gallus gallus Gene Index, resulting in 292 TC. The transcriptional expression of these genes were evaluated in several chicken tissues, including testis and ovary. One hundred ten of the 292 TC were expressed in a testis-specific manner. Annotation of the TC using the Gene Ontology database terms showed that the proportion of testis-specific TC that were classified as having catalytic activity (within the molecular function branch) was higher than the proportion of total chicken TC classified in the same way. Our results may facilitate the investigation of testis-specific genes and their functional analysis in the chicken, as well as in other avian species.
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Affiliation(s)
- D K Kim
- Division of Animal Genetic Engineering, School of Agricultural Biotechnology, Seoul National University, Seoul 151-921, Korea
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El-Hakim A, Aldana JPA, Reddy K, Singhal P, Lee BR. Laparoscopic bowel injury in an animal model: monocyte migration and apoptosis. Surg Endosc 2005; 19:484-7. [PMID: 15696363 DOI: 10.1007/s00464-004-8152-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [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: 08/17/2004] [Accepted: 10/21/2004] [Indexed: 10/25/2022]
Abstract
BACKGROUND Unrecognized laparoscopic bowel injury has a delayed and covert presentation. Differences in monocyte migration and apoptosis between laparoscopic and open bowel injury were determined. METHODS For this study, 24 rabbits were divided into laparoscopic (n = 9) and open surgical (n = 9) bowel injury groups and a control group (n = 6) without bowel injury. Bowel injury was created using monopolar electrocautery. The animals were killed 1 day, 1 week, and 2 weeks after surgery. Monocyte migration assay was performed across a modified Boyden chamber. Apoptosis was assessed by DNA fluorescent stain H-33342. RESULTS In laparoscopy, monocyte apoptosis was decreased (p < 0.001), and migration was increased (p < 0.05), as compared with the open group. Apoptosis increased over time in both study groups, and was higher than in the control group (p < 0.001). Migration was decreased in both study groups as compared with the control group (p < 0.05) CONCLUSIONS These results suggest decreased immune system priming with laparoscopic bowel injury, which may contribute to the masking of relevant signs and symptoms of peritonitis.
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Affiliation(s)
- A El-Hakim
- Department of Urology, Long Island Jewish Medical Center, 270-05 76th Avenue, New Hyde Park, NY 11040-1496, USA
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Abstract
BACKGROUND AND PURPOSE The optimal postoperative drainage system for patients undergoing percutaneous nephrolithotomy (PCNL) has not yet been determined. Each of the different tubes available has theoretical advantages and disadvantages. The objective of this study was to determine if any one system of post-PCNL drainage has any significant advantage over the others. PATIENTS AND METHODS Sixty patients were randomized to either a 24F Re-entry tube (Group 1), an 8F pigtail catheter (Group 2), or a double-J stent (Group 3) (N = 20 for all groups). The double-J stent patients also had an 18F Councill catheter as a nephrostomy tube, which was removed on the morning of postoperative day 1. The three groups were well-matched for age, stone size, operative time, and mean number of percutaneous tracts (P > 0.05 for all). Data collected included intraoperative findings, postoperative analog pain scores and narcotic usage, presence of extravasation on postoperative nephrostogram, presence of perinephric fluid on postoperative ultrasound scans, length of stay, and whether leakage from the nephrostomy site persisted more than 48 hours after tube removal. RESULTS There were no statistically significant differences among the three groups in terms of change in hematocrit or number of patients requiring blood transfusion; in the incidence of tube blockage, extravasation, or presence of perinephritic fluid; or in complication rates, length of hospital stay, or persistent leakage after tube removal. There was a strong trend to less postoperative leakage with the 8F pigtail than the Reentry tube (P = 0.05). Postoperative analog pain scores and narcotic usage were equivalent for all three groups. Patients Groups 1 and 2 were free of all tubes sooner than patients in Group 3 (P < 0.001). CONCLUSIONS This study did not demonstrate an overwhelming advantage of any one drainage system over the others. All three systems were equally tolerated by patients. There may be less chance of prolonged nephrostomy-site leakage with an 8F pigtail catheter.
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Affiliation(s)
- R Marcovich
- Department of Urology, Long Island Jewish Medical Center, New Hyde Park, New York 11040-1496, USA
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