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Seok JH, Ahn K, Park HJ. Diffusion MRI findings of cytomegalovirus-associated ventriculitis: a case report. Br J Radiol 2011; 84:e179-81. [PMID: 21849359 DOI: 10.1259/bjr/31561378] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Cytomegalovirus (CMV) ventriculoencephalitis is a rare but serious potential complication of CMV infection in immunocompromised patients. Characteristic diffusion-weighted imaging findings can be helpful for the diagnosis of CMV ventriculitis, as in this case report.
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Hristov D, Ahn K, Scott G. TU-E-214-02: Overhauser Oxygenation Imaging: Physics, Instrumentation and Pre-Clinical Applications. Med Phys 2011. [DOI: 10.1118/1.3613200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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28
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Ahn K, Furutake T, Kusuhara T, Nakatsuka D, Sekine Y, Nonaka M, Iwakura A, Yamanaka K. [Emergency operation and hypothermic therapy for Stanford type A acute aortic dissection in the state of coma]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 2010; 63:1032-1034. [PMID: 21066842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We report of a 77-year-old woman who was admitted to our hospital in coma by emergency. A computed tomography scan revealed acute aortic dissection (Stanford type A). We established selective antegrade cerebral perfusion within 3 hours of the onset and then performed ascending aortic replacement. In the state of hypothermia (35 degrees C), the patient was weaned from cardiopulmonary bypass. The patient was kept hypothermic until the operation was completed. We kept mild hypothermia (34.5 degrees C) in intensive care unit (ICU) for 40 hours. The patient was extubated at 94 hours after the operation. The patient was discharged from the hospital on foot on postoperative day 21.
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Ramesh G, Kwon O, Ahn K. Netrin-1: a novel universal biomarker of human kidney injury. Transplant Proc 2010; 42:1519-22. [PMID: 20620466 DOI: 10.1016/j.transproceed.2009.11.040] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2009] [Accepted: 11/24/2009] [Indexed: 01/16/2023]
Abstract
Currently available diagnostic markers representing kidney injury or function such as serum creatinine and blood urea nitrogen are insensitive and often increased late in the disease process. Netrin-1 protein, a laminin-related secreted molecule, is minimally or not expressed in tubular epithelial cells of normal kidneys. However, it is highly expressed in injured kidneys. Netrin-1 protein has been shown to be detected in urine from mice with acute kidney injury. The current study was carried out to evaluate whether netrin-1 is also induced in human acute kidney injury (AKI) and can serve as a urinary biomarker of the condition. We analyzed netrin-1 levels by sandwich enzyme-linked immunosorbent assay in urine samples from 10 healthy controls, 22 recipients of a renal allograft, 11 patients with ischemic AKI, 13 with AKI associated with sepsis, 9 with radiocontrast-induced AKI, and 8 with drug-induced AKI. Urinary netrin-1 levels normalized for urinary creatinine were significantly higher in all subject groups. The highest values were observed in patients with sepsis and in transplant patients immediately postoperatively. The level of NGAL was similarly increased in transplant patients. In conclusion, urinary netrin-1 levels are increased in patients with various forms of AKI/ATN and may serve as a universal biomarker for AKI.
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Ahn K, Scott G, Stang P, Conolly S, Hristov D. TH-D-201C-01: Advancing an Integrated Overhauser-Enhanced MRI (OMRI) - Prepolarized MM (PMRI) System Toward Quantitative Longitudinal Studies of Tumor Hypoxia and Redox Status. Med Phys 2010. [DOI: 10.1118/1.3469549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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31
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Lee J, Lee J, Ahn Y, Han Y, Ahn K, Lee S. Ara h2 Is Not A Major Peanut Allergen In Korea. J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2009.12.880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Han Y, Lee J, Shin M, Ahn K, Lee S. Difference of the Allergenicity of Egg According to the Age in Korean Children with Egg Allergy. J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2009.12.887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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33
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Park M, Ahn K. P1.068 Comparative study of the botulinum toxin type A potency between Botox® and BTXA®: using human extensor brevis muscle. Parkinsonism Relat Disord 2009. [DOI: 10.1016/s1353-8020(09)70190-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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34
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Halpern H, Elas M, Bell R, Hleihel D, Barth E, Chaney C, Ahn K, Pelizzari C, Kocherginsky M, Weichselbaum R. Electron Paramagnetic Resonance Oxygen Images Correlates Spatially and Quantitatively with Increased Vascular Endothelial Growth Factor Concentrations. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Kim Y, Ahn K, Park H, Song J, Kim T, Hur J, Lee K, Kim S. O479 Years from menopause to surgery is a major determinant of postoperative symptomatic improvement in postmenopausal pelvic organ prolapse. Int J Gynaecol Obstet 2009. [DOI: 10.1016/s0020-7292(09)60852-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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36
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Song J, Ahn K, Park H, Hong S, Kim T, Kim Y, Kim S, Lee K. P1100 CA 125 level as a predictive value of second look operation finding and prognostic marker in epithelial ovarian cancer. Int J Gynaecol Obstet 2009. [DOI: 10.1016/s0020-7292(09)62584-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Kim Y, Ahn K, Shin J, Hong S, Kim T, Hur J, Lee K, Kim S. O477 Relationship between CA-125 and osteoporosis in otherwise healthy postmenopausal women. Int J Gynaecol Obstet 2009. [DOI: 10.1016/s0020-7292(09)60850-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Ahn K, Bardina L, Grishina G, Beyer K, Sampson HA. Identification of two pistachio allergens, Pis v 1 and Pis v 2, belonging to the 2S albumin and 11S globulin family. Clin Exp Allergy 2009; 39:926-34. [PMID: 19522997 DOI: 10.1111/j.1365-2222.2009.03259.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND IgE-mediated allergic reactions to pistachio appear to be occurring more frequently; however, little is known about its allergenic proteins. OBJECTIVE We attempted to identify pistachio allergens and to clone the encoding genes. METHODS Pistachio proteins were extracted and separated by SDS-PAGE. Immunolabelling was performed with sera from 28 pistachio-allergic individuals. Proteins of interest were further analysed by Edman sequencing and mass spectrometry/mass spectrometry (MS/MS). In parallel, a cDNA library was generated from immature pistachios and screened with primers designed on the basis of internal sequences and peptide spectra. Full-length cDNA clones were isolated from the library and sequenced. Recombinant proteins were expressed and tested with sera from pistachio-allergic patients. RESULTS Nineteen out of 28 patients (68%) showed IgE binding to a 7 kDa protein fraction, while 14 (50%) showed specific IgE to a 32 kDa protein fraction. Analysis by Edman sequencing and MS/MS revealed that these proteins were homologue to the cashew nut allergens Ana o 3 and Ana o 2, respectively. Screening of the pistachio cDNA library resulted in isolation of novel protein cDNAs. Open-reading frame translation provided the complete amino acid sequences of two new allergenic pistachio proteins. Recombinant proteins were recognized by six out of six selected patients. Therefore, these new allergens were named Pis v 1 and Pis v 2 by the Allergen Nomenclature Subcommittee. CONCLUSION Novel allergens in pistachio, Pis v 1 and Pis v 2, which belong to 2S albumin and 11S globulin family, respectively, were isolated and the genes encoding these allergens were identified.
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Park J, Ahn K, Woo D, Lee J, Kim J, Jung W, Choe B, Suh T. SU-FF-T-518: Implications of Radiation Treatment Planning Based On Apparent Diffusion Coefficient Map for Malignant Brain Tumors. Med Phys 2009. [DOI: 10.1118/1.3182016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Ahn K, Scott G, Stang P, Conolly S, Hristov D. TH-D-304A-01: Development of Multi-Parametric Molecular Imager by Integrating Overhauser-Enhanced MRI (OMRI) with Prepolarized MRI (PMRI). Med Phys 2009. [DOI: 10.1118/1.3182693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Kim J, Kim H, Ahn K, Lee S. A Novel Mutation In The Linker Domain Of The STAT3 Gene, p.Lys531Glu, In Hyper-IgE Syndrome. J Allergy Clin Immunol 2009. [DOI: 10.1016/j.jaci.2008.12.305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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42
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Ahn K, Hargreaves B, Alley M, Horst K, Daniel B, Hristov D. Design of Magnetic Resonance Imaging Protocol for Accelerated Partial Breast Irradiation in Prone Position and Estimation of Treatment Margin. Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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43
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Tiryaki H, Ahn K, Roeske J, Mundt A, Mell L, Aydogan B. SU-GG-T-71: Dosimetric Comparison of Bone Marrow-Sparing Intensity Modulated Radiation Theraphy Versus Conventional Techniques for the Treatment of Cervical Cancer. Med Phys 2008. [DOI: 10.1118/1.2961822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Ahn K, Hargreaves B, Alley M, Horst K, Daniel B, Hristov D. TU-C-351-01: Design of Magnetic Resonance Imaging Protocol for Accelerated Partial Breast Irradiation in Prone Position. Med Phys 2008. [DOI: 10.1118/1.2962455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Ahn K, Dieterich S, Luxton G, Horst K, Hristov D. SU-DD-A1-05: Treatment Planning of Prone Position Accelerated Partial Breast Irradiation Customized for Magnetic Resonance Imaging Guidance. Med Phys 2008. [DOI: 10.1118/1.2961354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Shin S, Ahn K, Kwak Y, Song K, Park J, Youn Y. 320: Association between Socioeconomic Status and the Incidence and Severity of Traumatic Brain Injury. Ann Emerg Med 2007. [DOI: 10.1016/j.annemergmed.2007.06.381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kim B, Ahn K, Kim I, Park S, Kim B, Yoon S. Effect of combined treatment of bortezomib and valproic acid on multiple myeloma cells. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.18539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
18539 Background: Valproic acid (VPA) has an activity of histone deacetylase inhibitor that is known to have in vitro cytotoxic effect on multiple myeloma (MM) cells. It was investigated that VPA could synergize with bortezomib for human MM cell lines. Methods: U266 cell lines were treated with bortezomib 50nM and/or VPA 0.6mM and then MTT assay, cell cycle analysis using FACS, immunoblot analysis, caspase-3 activity assay, and IL-6 ELISA assay were performed. Results: Bortezomib activated caspase-3 and induced G1 cell cycle arrest. In MTT assay, VPA suppressed the U266 cell proliferation with IC50 of 0.6mM and combined treatment of bortezomib and VPA had more inhibitory effect than bortezomib alone. This combination caused further G1 cell cycle arrest, caspase-3 activation, and lowered IL-6 secretion from U266 cells than bortezomib, respectively. In immunoblot analysis, this combination further decreased the expression of cyclin A, cyclin D1, cyclin E, CDK2, CDK4, and CDK6, whereas up-regulated p21 and p27 expression than bortezomib alone. Conclusions: The combined treatment of bortezomib and VPA has a more significant anti-myeloma effect than bortezomib alone. No significant financial relationships to disclose.
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Ayuso R, Grishina G, Ahn K, Bardina L, Beyer K, Sampson H. Identification of a MnSOD-like Protein as a New Major Pistachio Allergen. J Allergy Clin Immunol 2007. [DOI: 10.1016/j.jaci.2006.11.433] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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49
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Yoo K, Kim J, Lee S, Chang S, Ahn K. UP-01.82. Urology 2006. [DOI: 10.1016/j.urology.2006.08.730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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50
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Choi W, Lee D, Ahn K, Lee J, Kim Y, Lee W. P-781. Fertil Steril 2006. [DOI: 10.1016/j.fertnstert.2006.07.1167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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