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Ikegami R, Piao Z, Iglesias JF, Pilgrim T, Ha K, McCarthy JR, Castellanos MI, Kassab MB, Albagdadi MS, Mauskapf A, Spicer G, Kandzari DE, Edelman ER, Libby P, Heg D, Joner M, Tearney GJ, Jaffer FA. Ultrathin-strut versus thin-strut stent healing and outcomes in preclinical and clinical subjects. EUROINTERVENTION 2024; 20:e669-e680. [PMID: 38776143 PMCID: PMC11100507 DOI: 10.4244/eij-d-23-00563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 01/16/2024] [Indexed: 05/24/2024]
Abstract
BACKGROUND Compared with thin-strut durable-polymer drug-eluting stents (DP-DES), ultrathin-strut biodegradable-polymer sirolimus-eluting stents (BP-SES) improve stent-related clinical outcomes in patients undergoing percutaneous coronary intervention (PCI). Reduced stent strut thickness is hypothesised to underlie these benefits, but this conjecture remains unproven. AIMS We aimed to assess the impact of strut thickness on stent healing and clinical outcomes between ultrathin-strut and thin-strut BP-SES. METHODS First, we performed a preclinical study of 8 rabbits implanted with non-overlapping thin-strut (diameter/thickness 3.5 mm/80 μm) and ultrathin-strut (diameter/thickness 3.0 mm/60 μm) BP-SES in the infrarenal aorta. On day 7, the rabbits underwent intravascular near-infrared fluorescence optical coherence tomography (NIRF-OCT) molecular-structural imaging of fibrin deposition and stent tissue coverage, followed by histopathological analysis. Second, we conducted an individual data pooled analysis of patients enrolled in the BIOSCIENCE and BIOSTEMI randomised PCI trials treated with ultrathin-strut (n=282) or thin-strut (n=222) BP-SES. The primary endpoint was target lesion failure (TLF) at 1-year follow-up, with a landmark analysis at 30 days. RESULTS NIRF-OCT image analyses revealed that ultrathin-strut and thin-strut BP-SES exhibited similar stent fibrin deposition (p=0.49) and percentage of uncovered stent struts (p=0.63). Histopathological assessments corroÂborated these findings. In 504 pooled randomised trial patients, TLF rates were similar for those treated with ultrathin-strut or thin-strut BP-SES at 30-day (2.5% vs 1.8%; p=0.62) and 1-year follow-up (4.3% vs 4.7%; p=0.88). CONCLUSIONS Ultrathin-strut and thin-strut BP-SES demonstrate similar early arterial healing profiles and 30-day and 1-year clinical outcomes.
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Affiliation(s)
- Ryutaro Ikegami
- Division of Cardiology, Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA, USA
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Zhonglie Piao
- Wellman Center for Photomedicine, Harvard Medical School and Massachusetts General Hospital, Boston, MA, USA
| | - Juan F Iglesias
- Department of Cardiology, Geneva University Hospitals, Geneva, Switzerland
| | | | - Khanh Ha
- Masonic Medical Research Institute, Utica, NY, USA
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
| | - Jason R McCarthy
- Masonic Medical Research Institute, Utica, NY, USA
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
| | - Maria I Castellanos
- Klink Fur Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Technische Universitat München, München, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, München, Germany
| | - Mohamad B Kassab
- Division of Cardiology, Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA, USA
| | - Mazen S Albagdadi
- Division of Cardiology, Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA, USA
- Department of Medicine, Division of Cardiology, University of Toronto, Toronto, Canada
| | - Adam Mauskapf
- Division of Cardiology, Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA, USA
| | - Graham Spicer
- Wellman Center for Photomedicine, Harvard Medical School and Massachusetts General Hospital, Boston, MA, USA
| | | | - Elazer R Edelman
- Harvard-Massachusetts Institute of Technology Health Sciences and Technology, Cambridge, MA, USA
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA
- Cardiovascular Division, Brigham and Women's Hospital, Boston, MA, USA
| | - Peter Libby
- Cardiovascular Division, Brigham and Women's Hospital, Boston, MA, USA
| | - Dik Heg
- CTU Bern, Bern University, Bern, Switzerland
| | - Michael Joner
- Klink Fur Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Technische Universitat München, München, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, München, Germany
| | - Guillermo J Tearney
- Wellman Center for Photomedicine, Harvard Medical School and Massachusetts General Hospital, Boston, MA, USA
- Harvard-Massachusetts Institute of Technology Health Sciences and Technology, Cambridge, MA, USA
| | - Farouc A Jaffer
- Division of Cardiology, Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA, USA
- Wellman Center for Photomedicine, Harvard Medical School and Massachusetts General Hospital, Boston, MA, USA
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Bose RJ, Kessinger CW, Dhammu T, Singh T, Shealy MW, Ha K, Collandra R, Himbert S, Garcia FJ, Oleinik N, Xu B, Vikas, Kontaridis MI, Rheinstädter MC, Ogretmen B, Menick DR, McCarthy JR. Biomimetic Nanomaterials for the Immunomodulation of the Cardiosplenic Axis Postmyocardial Infarction. Adv Mater 2024; 36:e2304615. [PMID: 37934471 PMCID: PMC10922695 DOI: 10.1002/adma.202304615] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 10/16/2023] [Indexed: 11/08/2023]
Abstract
The spleen is an important mediator of both adaptive and innate immunity. As such, attempts to modulate the immune response provided by the spleen may be conducive to improved outcomes for numerous diseases throughout the body. Here, biomimicry is used to rationally design nanomaterials capable of splenic retention and immunomodulation for the treatment of disease in a distant organ, the postinfarct heart. Engineered senescent erythrocyte-derived nanotheranostic (eSENTs) are generated, demonstrating significant uptake by the immune cells of the spleen including T and B cells, as well as monocytes and macrophages. When loaded with suberoylanilide hydroxamic acid (SAHA), the nanoagents exhibit a potent therapeutic effect, reducing infarct size by 14% at 72 h postmyocardial infarction when given as a single intravenous dose 2 h after injury. These results are supportive of the hypothesis that RBC-derived biomimicry may provide new approaches for the targeted modulation of the pathological processes involved in myocardial infarction, thus further experiments to decisively confirm the mechanisms of action are currently underway. This novel concept may have far-reaching applicability for the treatment of a number of both acute and chronic conditions where the immune responses are either stimulated or suppressed by the splenic (auto)immune milieu.
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Affiliation(s)
- Rajendran Jc Bose
- Department of Biomedical Research and Translational Medicine, Masonic Medical Research Institute, Utica, NY, 13501, USA
| | - Chase W Kessinger
- Department of Biomedical Research and Translational Medicine, Masonic Medical Research Institute, Utica, NY, 13501, USA
| | - Tajinder Dhammu
- Department of Medicine, Division of Cardiology, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Toolika Singh
- Department of Medicine, Division of Cardiology, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Miller W Shealy
- Department of Medicine, Division of Cardiology, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Khanh Ha
- Department of Biomedical Research and Translational Medicine, Masonic Medical Research Institute, Utica, NY, 13501, USA
| | - Rena Collandra
- Department of Biomedical Research and Translational Medicine, Masonic Medical Research Institute, Utica, NY, 13501, USA
| | - Sebastian Himbert
- Department of Physics and Astronomy, McMaster University, Hamilton, ON, L8S 4M1, Canada
| | - Fernando J Garcia
- Department of Radiology, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Natalia Oleinik
- Department of Biochemistry and Molecular Biology, and Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Bing Xu
- Department of Biomedical Research and Translational Medicine, Masonic Medical Research Institute, Utica, NY, 13501, USA
| | - Vikas
- Department of Biomedical Research and Translational Medicine, Masonic Medical Research Institute, Utica, NY, 13501, USA
| | - Maria I Kontaridis
- Department of Biomedical Research and Translational Medicine, Masonic Medical Research Institute, Utica, NY, 13501, USA
- Department of Medicine, Division of Cardiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02115, USA
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, 02115, USA
| | - Maikel C Rheinstädter
- Department of Physics and Astronomy, McMaster University, Hamilton, ON, L8S 4M1, Canada
| | - Besim Ogretmen
- Department of Biochemistry and Molecular Biology, and Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Donald R Menick
- Department of Medicine, Division of Cardiology, Medical University of South Carolina, Charleston, SC, 29425, USA
- Ralph H. Johnson Veterans Affairs Medical Center, Charleston, SC, 29401, USA
| | - Jason R McCarthy
- Department of Biomedical Research and Translational Medicine, Masonic Medical Research Institute, Utica, NY, 13501, USA
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3
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Nasrullah M, Meenakshi Sundaram DN, Claerhout J, Ha K, Demirkaya E, Uludag H. Nanoparticles and cytokine response. Front Bioeng Biotechnol 2023; 11:1243651. [PMID: 37701495 PMCID: PMC10493271 DOI: 10.3389/fbioe.2023.1243651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 08/14/2023] [Indexed: 09/14/2023] Open
Abstract
Synthetic nanoparticles (NPs) are non-viral equivalents of viral gene delivery systems that are actively explored to deliver a spectrum of nucleic acids for diverse range of therapies. The success of the nanoparticulate delivery systems, in the form of efficacy and safety, depends on various factors related to the physicochemical features of the NPs, as well as their ability to remain "stealth" in the host environment. The initial cytokine response upon exposure to nucleic acid bearing NPs is a critical component of the host response and, unless desired, should be minimized to prevent the unintended consequences of NP administration. In this review article, we will summarize the most recent literature on cytokine responses to nanoparticulate delivery systems and identify the main factors affecting this response. The NP features responsible for eliciting the cytokine response are articulated along with other factors related to the mode of therapeutic administration. For diseases arising from altered cytokine pathophysiology, attempts to silence the individual components of cytokine response are summarized in the context of different diseases, and the roles of NP features on this respect are presented. We finish with the authors' perspective on the possibility of engineering NP systems with controlled cytokine responses. This review is intended to sensitize the reader with important issues related to cytokine elicitation of non-viral NPs and the means of controlling them to design improved interventions in the clinical setting.
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Affiliation(s)
- Mohammad Nasrullah
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB, Canada
| | | | - Jillian Claerhout
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB, Canada
| | - Khanh Ha
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB, Canada
| | - Erkan Demirkaya
- Department of Paediatrics, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada
| | - Hasan Uludag
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB, Canada
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, AB, Canada
- Department of Biomedical Engineering, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
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Knipe RS, Nurunnabi M, Probst CK, Spinney JJ, Abe E, Bose RJC, Ha K, Logue A, Nguyen T, Servis R, Drummond M, Haring A, Brazee PL, Medoff BD, McCarthy JR. Myofibroblast-specific inhibition of the Rho kinase-MRTF-SRF pathway using nanotechnology for the prevention of pulmonary fibrosis. Am J Physiol Lung Cell Mol Physiol 2023; 324:L190-L198. [PMID: 36625494 PMCID: PMC9925159 DOI: 10.1152/ajplung.00086.2022] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 10/19/2022] [Accepted: 12/19/2022] [Indexed: 01/11/2023] Open
Abstract
Pulmonary fibrosis is characterized by the accumulation of myofibroblasts in the lung and progressive tissue scarring. Fibroblasts exist across a spectrum of states, from quiescence in health to activated myofibroblasts in the setting of injury. Highly activated myofibroblasts have a critical role in the establishment of fibrosis as the predominant source of type 1 collagen and profibrotic mediators. Myofibroblasts are also highly contractile cells and can alter lung biomechanical properties through tissue contraction. Inhibiting signaling pathways involved in myofibroblast activation could therefore have significant therapeutic value. One of the ways myofibroblast activation occurs is through activation of the Rho/myocardin-related transcription factor (MRTF)/serum response factor (SRF) pathway, which signals through intracellular actin polymerization. However, concerns surrounding the pleiotropic and ubiquitous nature of these signaling pathways have limited the translation of inhibitory drugs. Herein, we demonstrate a novel therapeutic antifibrotic strategy using myofibroblast-targeted nanoparticles containing a MTRF/SRF pathway inhibitor (CCG-1423), which has been shown to block myofibroblast activation in vitro. Myofibroblasts were preferentially targeted via the angiotensin 2 receptor, which has been shown to be selectively upregulated in animal and human studies. These nanoparticles were nontoxic and accumulated in lung myofibroblasts in the bleomycin-induced mouse model of pulmonary fibrosis, reducing the number of these activated cells and their production of profibrotic mediators. Ultimately, in a murine model of lung fibrosis, a single injection of these drugs containing targeted nanoagents reduced fibrosis as compared with control mice. This approach has the potential to deliver personalized therapy by precisely targeting signaling pathways in a cell-specific manner, allowing increased efficacy with reduced deleterious off-target effects.
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Affiliation(s)
- Rachel S Knipe
- Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Andrew M. Tager Fibrosis Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Md Nurunnabi
- Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Andrew M. Tager Fibrosis Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Clemens K Probst
- Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Andrew M. Tager Fibrosis Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Jillian J Spinney
- Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Andrew M. Tager Fibrosis Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Elizabeth Abe
- Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Andrew M. Tager Fibrosis Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Rajendran J C Bose
- Biomedical Research and Translational Medicine, Masonic Medical Research Institute, Utica, New York
| | - Khanh Ha
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Biomedical Research and Translational Medicine, Masonic Medical Research Institute, Utica, New York
| | - Amanda Logue
- Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Andrew M. Tager Fibrosis Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Trong Nguyen
- Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Andrew M. Tager Fibrosis Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Rachel Servis
- Department of Pathology, Massachusetts General Hospital, Boston, Massachusetts
| | - Matthew Drummond
- Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Andrew M. Tager Fibrosis Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Alexis Haring
- Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Andrew M. Tager Fibrosis Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Patricia L Brazee
- Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Andrew M. Tager Fibrosis Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Benjamin D Medoff
- Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Andrew M. Tager Fibrosis Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Jason R McCarthy
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Biomedical Research and Translational Medicine, Masonic Medical Research Institute, Utica, New York
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Flaws M, Hartman K, Geurkink C, Mullins D, Ha K, Zinni JG, Pahomi A. Replicated Adsorption Technique used to Resolve ALX148 Interference in the Immunohematology Reference Laboratory. Am J Clin Pathol 2022. [DOI: 10.1093/ajcp/aqac126.335] [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: 11/11/2022] Open
Abstract
Abstract
Introduction/Objective
Increased expression of CD47 by cancer cells inhibits macrophages' phagocytic activity through CD47-SIRPα interactions, allowing evasion of the innate immune system. Several drugs on the market have been developed to target this interaction, including monoclonal therapeutics and fusion proteins. ALX148 is a genetically engineered SIRPα fusion protein with an inactivated Fc portion. CD47 is expressed highly on red blood cells (RBC), resulting in strong interference in pre-transfusion compatibility testing of patients receiving ALX148. Consequently, trial patients are at increased risk of transfusion-related adverse events or delay of needed transfusion. Few resolutions of ALX148 interference to assess underlying alloantibody development have been reported. One such examiniation demonstrated x6 linear papain-treated RBC adsorptions removed ALX148 interference. This study aimed to replicate these findings.
Methods/Case Report
Three patients receiving combination ALX148 (dose 6.57-20mg/mL) and Azacitidine therapy with broad-reactive RBC antibody reactivity were selected. High volume alloadsorptions (8:1 RBC:plasma) were performed with papain-treated rr (ccdee) RBCs. Adsorptions were incubated at 37C for 10 minutes. Polyethylene glycol (PEG) was utilized in test tube indirect antiglobulin testing (IAT).
Results (if a Case Study enter NA)
Initial reactivity strength was 3-4+ at PEG-IAT and saline-IAT with a three-cell screening RBC reagent. Alloadsorbed plasma was non-reactive at IAT with a three-cell screening RBC reagent enhanced by PEG. Drug interference was removed following three times high volume papain-treated alloadsorption.
Conclusion
Cancer immunotherapies have transformed the standard of care in oncology. Despite the evident clinical success, the medical laboratory has been challenged with adapting to cancer drug therapies capable of causing interference in routine laboratory testing. Clinical trials of ALX148 are associated with interference in pre-transfusion compatibility testing. The use of extended phenotype matching for RBC transfusion can be utilized but incurs additional time and resources. These results suggest high volume linear papain RBC alloadsorptions may be incorporated into antibody resolution for patients receiving ALX148.
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Affiliation(s)
- M Flaws
- Medical Laboratory Science, Rush University , Chicago, Illinois , United States
| | - K Hartman
- Blood Bank, Northwestern Memorial Hospital , Chicago, Illinois , United States
| | - C Geurkink
- Versiti IL , Aurora, Illinois , United States
| | - D Mullins
- Versiti IL , Aurora, Illinois , United States
| | - K Ha
- Versiti IL , Aurora, Illinois , United States
| | - J G Zinni
- Versiti IL , Aurora, Illinois , United States
| | - A Pahomi
- Versiti IL , Aurora, Illinois , United States
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Jacobson LS, Janke KJ, Ha K, Giacinti JA, Weese JS. Feline panleukopenia virus DNA shedding following modified live virus vaccination in a shelter setting. Vet J 2021; 279:105783. [PMID: 34861370 DOI: 10.1016/j.tvjl.2021.105783] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 11/24/2021] [Accepted: 11/29/2021] [Indexed: 11/16/2022]
Abstract
This study assessed the frequency and timing of feline panleukopenia virus (FPV) shedding in feces following administration of a modified live FPV vaccine. Feces were collected from 37 shelter cats that did not meet clinical criteria for panleukopenia on the day of vaccination or on days 3, 7, 14, and 21 post-vaccination (NCL group). A commercial quantitative PCR (qPCR) fecal pathogen panel and a canine parvovirus point-of-care antigen test were performed. FPV DNA copy numbers from a concurrent study of 39 cats with panleukopenia (CL group) were compared with the NCL group. Of the 165 samples from the NCL group, one had a weak positive antigen test result on day 7, while nine samples (5.5%) from eight cats (21.6%) produced positive FPV qPCR test results, one on day 3 and eight on day 7. There were no day 21-positive qPCR results in the 11 cats that were revaccinated on day 14. There was no association between the number of additional fecal pathogens identified and a positive FPV qPCR result. Of the cats with positive results, FPV DNA copy numbers differed between NCL group and CL group (median 1.13 × 107 and 5.01 × 10⁸ copies/g feces, respectively; P < 0.001). The FPV qPCR cannot differentiate subclinical infection from vaccine virus shedding. To avoid unnecessary isolation and euthanasia, shelters should therefore limit FPV PCR testing to cats with a high index of suspicion of panleukopenia. The timing of recent vaccination should also be considered when interpreting test results.
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Affiliation(s)
- L S Jacobson
- Toronto Humane Society, 11 River Street, Toronto, ON M5A 4C2, Canada.
| | - K J Janke
- Toronto Humane Society, 11 River Street, Toronto, ON M5A 4C2, Canada
| | - K Ha
- Toronto Humane Society, 11 River Street, Toronto, ON M5A 4C2, Canada
| | - J A Giacinti
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
| | - J S Weese
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
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Ha K, Zheng X, Kessinger CW, Mauskapf A, Li W, Kawamura Y, Orii M, Hilderbrand SA, Jaffer FA, McCarthy JR. In Vivo Platelet Detection Using a Glycoprotein IIb/IIIa-Targeted Near-Infrared Fluorescence Imaging Probe. ACS Sens 2021; 6:2225-2232. [PMID: 34056903 DOI: 10.1021/acssensors.1c00124] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Platelets play a prominent role in multiple diseases, in particular arterial and venous thrombosis and also in atherosclerosis and cancer. To advance the in vivo study of the biological activity of this cell type from a basic experimental focus to a clinical focus, new translatable platelet-specific molecular imaging agents are required. Herein, we report the development of a near-infrared fluorescence probe based upon tirofiban, a clinically approved small-molecule glycoprotein IIb/IIIa inhibitor (GPIIb/IIIa). Through in vitro experiments with human platelets and in vivo ones in a murine model of deep-vein thrombosis, we demonstrate the avidity of the generated probe for activated platelets, with the added benefit of a short blood half-life, thereby enabling rapid in vivo visualization within the vasculature.
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Affiliation(s)
- Khanh Ha
- Masonic Medical Research Institute, Utica, New York 13501, United States
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Xiaoxin Zheng
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Chase W. Kessinger
- Masonic Medical Research Institute, Utica, New York 13501, United States
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Adam Mauskapf
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Wenzhu Li
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Yoichiro Kawamura
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Makoto Orii
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Scott A. Hilderbrand
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Farouc A. Jaffer
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Jason R. McCarthy
- Masonic Medical Research Institute, Utica, New York 13501, United States
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
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Gupta M, Ha K, Agarwal R, Quarles LD, Smith JC. Molecular dynamics analysis of the binding of human interleukin-6 with interleukin-6 α-receptor. Proteins 2020; 89:163-173. [PMID: 32881084 DOI: 10.1002/prot.26002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 07/26/2020] [Accepted: 08/25/2020] [Indexed: 11/07/2022]
Abstract
Human interleukin-6 (hIL-6) is a multifunctional cytokine that regulates immune and inflammatory responses in addition to metabolic and regenerative processes and cancer. hIL-6 binding to the IL-6 receptor (IL-6Rα) induces homodimerization and recruitment of the glycoprotein (gp130) to form a hexameric signaling complex. Anti-IL-6 and IL-6R antibodies are clinically approved inhibitors of IL-6 signaling pathway for treating rheumatoid arthritis and Castleman's disease, respectively. There is a potential to develop novel small molecule IL-6 antagonists derived from understanding the structural basis for IL-6/IL-6Rα interactions. Here, we combine homology modeling with extensive molecular dynamics (MD) simulations to examine the association of hIL-6 with IL-6Rα. A comparison with MD of apo hIL-6 reveals that the binding of hIL-6 to IL-6Rα induces structural and dynamic rearrangements in the AB loop region of hIL-6, disrupting intraprotein contacts and increasing the flexibility of residues 48 to 58 of the AB loop. In contrast, due to the involvement of residues 59 to 78 in forming contacts with the receptor, these residues of the AB loop are observed to rigidify in the presence of the receptor. The binary complex is primarily stabilized by two pairs of salt bridges, Arg181 (hIL-6)- Glu182 (IL-6Rα) and Arg184 (hIL-6)- Glu183 (IL-6Rα) as well as hydrophobic and aromatic stacking interactions mediated essentially by Phe residues in both proteins. An interplay of electrostatic, hydrophobic, hydrogen bonding, and aromatic stacking interactions facilitates the formation of the hIL-6/IL-6Rα complex.
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Affiliation(s)
- Madhulika Gupta
- UT/ORNL Center for Molecular Biophysics, Oak Ridge National Lab, Oak Ridge, Tennessee, USA
| | - Khanh Ha
- Tickle College of Engineering, University of Tennessee, Knoxville, Tennessee, USA
| | - Rupesh Agarwal
- UT/ORNL Center for Molecular Biophysics, Oak Ridge National Lab, Oak Ridge, Tennessee, USA
| | - Leigh Darryl Quarles
- Division of Nephrology, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - Jeremy C Smith
- UT/ORNL Center for Molecular Biophysics, Oak Ridge National Lab, Oak Ridge, Tennessee, USA
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9
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Dang V, Dao T, Ha K, Nguyen T, Tran T, Nguyen H. Neoadjuvant treatment breast cancer: a retrospective study in Vietnam National Cancer Hospital. Breast 2019. [DOI: 10.1016/s0960-9776(19)30272-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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10
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Ha K, Joung H, Song Y. Low-carbohydrate diet and the risk of metabolic syndrome in Korean adults. Nutr Metab Cardiovasc Dis 2018; 28:1122-1132. [PMID: 30139686 DOI: 10.1016/j.numecd.2018.06.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [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: 03/05/2018] [Revised: 06/11/2018] [Accepted: 06/11/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND & AIMS The association of low-carbohydrate diet with weight loss and the risk of cardiovascular diseases has recently been the focus of increasing research attention. However, studies on low-carbohydrate diet in the Asian population are limited. The present study was aimed to examine the association between low-carbohydrate diet and metabolic syndrome among Korean adults. METHODS AND RESULTS A total of 16,349 participants aged 30 years or older who participated in a 24-h dietary recall survey of the fifth and sixth Korea National Health and Nutrition Examination Survey were included in this study. Low-carbohydrate diet was evaluated using the low-carbohydrate-diet score, which was calculated based on the percentage of energy from carbohydrate, protein, and fat by sex. The association between the low-carbohydrate-diet score and metabolic syndrome was analyzed using multiple logistic regression analysis. A low-carbohydrate diet was not associated with metabolic syndrome and its components such as waist circumference, blood pressure, and triglyceride levels. However, women in the highest decile of the animal- or plant-based low-carbohydrate-diet score showed a decreased risk of reduced high-density lipoprotein (HDL)-cholesterol levels, and men in the highest decile of the animal-based low-carbohydrate-diet score showed a decreased risk of reduced HDL-cholesterol levels than those in the lowest decile of the low-carbohydrate-diet score. CONCLUSION These findings indicate that, in Korea, a low-carbohydrate diet did not increase the risk of metabolic syndrome among adults who typically consume a high-carbohydrate low-fat diet. However, it may moderately decrease the risk of reduced HDL-cholesterol levels.
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Affiliation(s)
- K Ha
- Graduate School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - H Joung
- Graduate School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - Y Song
- Major of Food and Nutrition, School of Human Ecology, The Catholic University of Korea, Gyeonggi, Republic of Korea.
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11
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Shultzaberger RK, Johnson SJ, Wagner J, Ha K, Markow TA, Greenspan RJ. Conservation of the behavioral and transcriptional response to social experience among Drosophilids. Genes Brain Behav 2018; 18:e12487. [PMID: 29797548 PMCID: PMC7379240 DOI: 10.1111/gbb.12487] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Revised: 05/14/2018] [Accepted: 05/21/2018] [Indexed: 12/02/2022]
Abstract
While social experience has been shown to significantly alter behaviors in a wide range of species, comparative studies that uniformly measure the impact of a single experience across multiple species have been lacking, limiting our understanding of how plastic traits evolve. To address this, we quantified variations in social feeding behaviors across 10 species of Drosophilids, tested the effect of altering rearing context on these behaviors (reared in groups or in isolation) and correlated observed behavioral shifts to accompanying transcriptional changes in the heads of these flies. We observed significant variability in the extent of aggressiveness, the utilization of social cues during food search, and social space preferences across species. The sensitivity of these behaviors to rearing experience also varied: socially naive flies were more aggressive than their socialized conspecifics in some species, and more reserved or identical in others. Despite these differences, the mechanism of socialization appeared to be conserved within the melanogaster subgroup as species could cross‐socialize each other, and the transcriptional response to social exposure was significantly conserved. The expression levels of chemosensory‐perception genes often varied between species and rearing conditions, supporting a growing body of evidence that behavioral evolution is driven by the differential regulation of this class of genes. The clear differences in behavioral responses to socialization observed in Drosophilids make this an ideal system for continued studies on the genetic basis and evolution of socialization and behavioral plasticity.
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Affiliation(s)
- R K Shultzaberger
- Kavli Institute of Brain and Mind, University of California San Diego, San Diego, California
| | - S J Johnson
- Kavli Institute of Brain and Mind, University of California San Diego, San Diego, California
| | - J Wagner
- Kavli Institute of Brain and Mind, University of California San Diego, San Diego, California
| | - K Ha
- Kavli Institute of Brain and Mind, University of California San Diego, San Diego, California
| | - T A Markow
- Laboratorio Nacional de Genomica de la Biodiversidad, Centro de Investigacion y de Estudios Avanzados-Irapuato, Guanajuato, Mexico.,Department of Cell and Developmental Biology, University of California San Diego, San Diego, California
| | - R J Greenspan
- Kavli Institute of Brain and Mind, University of California San Diego, San Diego, California
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12
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Saini R, Hong NT, Ha K, Hung HT, Thinh DHQ, Chanh LT, Poh CF. Oral Habits Associated with an Increased Risk of Oral Cancer in Vietnam. J Clin Diagn Res 2017. [DOI: 10.7860/jcdr/2017/29000.10846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Chen W, Desai D, Good D, Crison J, Timmins P, Paruchuri S, Wang J, Ha K. Mathematical Model-Based Accelerated Development of Extended-release Metformin Hydrochloride Tablet Formulation. AAPS PharmSciTech 2016; 17:1007-13. [PMID: 26729531 DOI: 10.1208/s12249-015-0423-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 09/24/2015] [Indexed: 01/08/2023] Open
Abstract
A computational fluid dynamic (CFD) model was developed to predict metformin release from a hydroxypropylmethylcellulose (HPMC) matrix-based extended-release formulation that took into consideration the physical and chemical properties of the drug substance, composition, as well as size and shape of the tablet. New high dose strength (1000 mg) tablet geometry was selected based on the surface area/volume (SA/V) approach advocated by Lapidus/Lordi/Reynold to obtain the desired equivalent metformin release kinetics. Maintaining a similar SA/V ratio across all extended-release metformin hydrochloride (Met XR) tablet strengths that had different geometries provided similar simulations of dissolution behavior. Experimental dissolution profiles of three lots of high-strength tablets agreed with the simulated release kinetics. Additionally, a pharmacokinetic absorption model was developed using GastroPlus™ software and known physicochemical, pharmacokinetic, and in vitro dissolution properties of metformin to predict the clinical exposure of the new high strength (1000 mg) tablet prior to conducting a human clinical bioequivalence study. In vitro metformin release kinetics were utilized in the absorption model to predict exposures in humans for new 1000-mg Met XR tablets, and the absorption model correctly projected equivalent in vivo exposure across all dose strengths. A clinical bioequivalence study was pursued based on the combined modeling results and demonstrated equivalent exposure as predicted by the simulations.
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14
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Wijesekara N, Ahrens R, Wu L, Ha K, Liu Y, Wheeler MB, Fraser PE. Islet amyloid inhibitors improve glucose homeostasis in a transgenic mouse model of type 2 diabetes. Diabetes Obes Metab 2015; 17:1003-6. [PMID: 26095311 DOI: 10.1111/dom.12529] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2015] [Revised: 06/03/2015] [Accepted: 06/14/2015] [Indexed: 11/29/2022]
Abstract
Increasing evidence points to the cytotoxicity of islet amyloid polypeptide (IAPP) aggregates as a major contributor to the loss of β-cell mass in type 2 diabetes. Prevention of IAPP formation represents a potential treatment to increase β-cell survival and function. The IAPP inhibitory peptide, D-ANFLVH, has been previously shown to prevent islet amyloid accumulation in cultured human islets. To assess its activity in vivo, D-ANFLVH was administered by intraperitoneal injection into a human IAPP transgenic mouse model, which replicates type 2 diabetes islet amyloid pathology. The peptide was a potent inhibitor of islet amyloid deposition, resulting in reduced islet cell apoptosis and preservation of β-cell area leading to improved glucose tolerance. These findings provide support for a key role of islet amyloid in β-cell survival and validate the application of anti-amyloid compounds as therapeutic strategies to maintain normal insulin secretion in patients with type 2 diabetes.
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Affiliation(s)
- N Wijesekara
- Tanz Centre for Research in Neurodegenerative Diseases, University of Toronto, Toronto, Canada
| | - R Ahrens
- Tanz Centre for Research in Neurodegenerative Diseases, University of Toronto, Toronto, Canada
| | - L Wu
- Tanz Centre for Research in Neurodegenerative Diseases, University of Toronto, Toronto, Canada
| | - K Ha
- Tanz Centre for Research in Neurodegenerative Diseases, University of Toronto, Toronto, Canada
| | - Y Liu
- Department of Physiology, University of Toronto, Toronto, Canada
| | - M B Wheeler
- Department of Physiology, University of Toronto, Toronto, Canada
| | - P E Fraser
- Tanz Centre for Research in Neurodegenerative Diseases, University of Toronto, Toronto, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Canada
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15
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Nsengiyumva O, Hamedzadeh S, McDaniel J, Macho J, Simpson G, Panda SS, Ha K, Lebedyeva I, Faidallah HM, Al-Mohammadi MM, Hall CD, Katritzky AR. A benzotriazole-mediated route to protected marine-derived hetero-2,5-diketopiperazines containing proline. Org Biomol Chem 2015; 13:4399-403. [PMID: 25762208 DOI: 10.1039/c5ob00023h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A procedure for the cyclization of dipeptidoyl benzotriazolides containing proline derivatives promoted by triethylamine under MW activation is introduced. The reaction is general for a variety of dipeptidoyl benzotriazolides and represents a very practical and convenient method for the preparation of Pro- or Hyp-derived 2,5-diketopiperazines (2,5-DKPs) and bis-DKPs with a disulfide linker. This method can be used for the construction of 2,5-DKP compound libraries and for the synthesis of natural products with diketopiperazine cores.
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Affiliation(s)
- Olivier Nsengiyumva
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, FL 32611-7200, USA.
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16
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Kapczinski F, Magalhães PVS, Balanzá-Martinez V, Dias VV, Frangou S, Gama CS, Gonzalez-Pinto A, Grande I, Ha K, Kauer-Sant'Anna M, Kunz M, Kupka R, Leboyer M, Lopez-Jaramillo C, Post RM, Rybakowski JK, Scott J, Strejilevitch S, Tohen M, Vazquez G, Yatham L, Vieta E, Berk M. Staging systems in bipolar disorder: an International Society for Bipolar Disorders Task Force Report. Acta Psychiatr Scand 2014; 130:354-63. [PMID: 24961757 DOI: 10.1111/acps.12305] [Citation(s) in RCA: 161] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/30/2014] [Indexed: 12/14/2022]
Abstract
OBJECTIVE We discuss the rationale behind staging systems described specifically for bipolar disorders. Current applications, future directions and research gaps in clinical staging models for bipolar disorders are outlined. METHOD We reviewed the literature pertaining to bipolar disorders, focusing on the first episode onwards. We systematically searched data on staging models for bipolar disorders and allied studies that could inform the concept of staging. RESULTS We report on several dimensions that are relevant to staging concepts in bipolar disorder. We consider whether staging offers a refinement to current diagnoses by reviewing clinical studies of treatment and functioning and the potential utility of neurocognitive, neuroimaging and peripheral biomarkers. CONCLUSION Most studies to date indicate that globally defined late-stage patients have a worse overall prognosis and poorer response to standard treatment, consistent with patterns for end-stage medical disorders. We believe it is possible at this juncture to speak broadly of 'early'- and 'late'-stage bipolar disorder. Next steps require further collaborative efforts to consider the details of preillness onset and intermediary stages, and how many additional stages are optimal.
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Affiliation(s)
- F Kapczinski
- National Institute for Translational Medicine, Hospital de Clínicas de Porto Alegre, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
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17
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Ha K, Lebedyeva I, Hamedzadeh S, Li Z, Quiñones R, Pillai GG, Williams B, Nasajpour A, Martin K, Asiri AM, Katritzky AR. Tandem Deprotection-Dimerization-Macrocyclization Route toC2Symmetriccyclo-Tetrapeptides. Chemistry 2014; 20:4874-9. [DOI: 10.1002/chem.201304262] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 12/24/2013] [Indexed: 11/08/2022]
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18
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Shin J, Park Y, Ha K, So I, Kim D. P.12.9 Electrophysiological characterization of novel CLCN1 mutations found in Korean patients with myotonia congenita. Neuromuscul Disord 2013. [DOI: 10.1016/j.nmd.2013.06.591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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19
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Ha K, Lebedyeva I, Li Z, Martin K, Williams B, Faby E, Nasajpour A, Pillai GG, Al-Youbi AO, Katritzky AR. Conformationally Assisted Lactamizations for the Synthesis of Symmetrical and Unsymmetrical Bis-2,5-diketopiperazines. J Org Chem 2013; 78:8510-23. [DOI: 10.1021/jo401235k] [Citation(s) in RCA: 7] [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: 01/18/2023]
Affiliation(s)
- Khanh Ha
- Center for Heterocyclic
Compounds,
Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Iryna Lebedyeva
- Center for Heterocyclic
Compounds,
Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Zhiliang Li
- Center for Heterocyclic
Compounds,
Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Kristin Martin
- Center for Heterocyclic
Compounds,
Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Byron Williams
- Center for Heterocyclic
Compounds,
Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Eric Faby
- Center for Heterocyclic
Compounds,
Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Amir Nasajpour
- Center for Heterocyclic
Compounds,
Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Girinath G. Pillai
- Center for Heterocyclic
Compounds,
Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
- Institute of Chemistry, University of Tartu, Tartu 50411, Estonia
| | - Abdulrahman O. Al-Youbi
- Chemistry Department, Faculty
of Science, King Abdulaziz University,
Jeddah, 21589 Saudi Arabia
| | - Alan R. Katritzky
- Center for Heterocyclic
Compounds,
Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
- Chemistry Department, Faculty
of Science, King Abdulaziz University,
Jeddah, 21589 Saudi Arabia
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20
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Ishak WW, Christensen S, Sayer G, Ha K, Li N, Miller J, Nguyen JM, Cohen RM. Sexual satisfaction and quality of life in major depressive disorder before and after treatment with citalopram in the STAR*D study. J Clin Psychiatry 2013; 74:256-61. [PMID: 23561231 DOI: 10.4088/jcp.12m07933] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2012] [Accepted: 08/02/2012] [Indexed: 10/27/2022]
Abstract
OBJECTIVE Major depressive disorder (MDD) patients often experience impaired sexual satisfaction (ISS) and poor quality of life (QOL). Selective serotonin reuptake inhibitors (SSRIs), the first-line treatment for MDD, can cause sexual dysfunction, potentially worsening ISS and QOL. This study examined the impact of MDD and the SSRI citalopram on sexual satisfaction and QOL in level 1 of the Sequenced Treatment Alternatives to Relieve Depression (STAR*D) trial (July 2001-September 2006). METHOD A retrospective analysis was conducted of the change in sexual satisfaction, as measured by item 9 of the Quality of Life Enjoyment and Satisfaction Questionnaire, the primary outcome measure, in 2,280 patients with DSM-IV-TR-defined MDD who were treated with citalopram for 12 weeks. The Quick Inventory of Depressive Symptomatology-Self Report was used to evaluate the impact of depression ratings on impaired sexual satisfaction and on QOL. RESULTS Impaired sexual satisfaction was present in 64.3% of MDD patients at pretreatment, but that percentage declined to 47.1% at posttreatment with citalopram (P < .0001). Those who achieved remission had less ISS and better QOL. The prevalence of ISS in remitters was 21.2% versus 61.3% in nonremitters (P < 10(-8)). The mean ± standard deviation score for remitters increased from 2.32 ± 1.16 to 3.44 ± 1.23 (P < 10(-8); Cohen d = 0.81 [large effect size]), whereas in nonremitters it increased only from 1.99 ± 1.08 to 2.19 ± 1.19 (P < 10(-8); Cohen d = 0.16). The difference between remitters and nonremitters was highly significant (P < 10(-8)). Regression analyses at pretreatment and posttreatment demonstrated significant associations between depressive symptoms and ISS (P < .0001) and between ISS and lower QOL (P < .0001) as well as an association between citalopram and increased probability of ISS and a poorer QOL in patients who continue to have moderate-to-severe depression. CONCLUSIONS A majority of MDD patients have impaired sexual satisfaction, a symptom associated with poor QOL. Despite the sexual side effects of the SSR citalopram, treating depression to full remission was associated with improvements in sexual satisfaction and QOL. TRIAL REGISTRATION ClinicalTrials.gov identifier: NCT00021528.
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Affiliation(s)
- Waguih William Ishak
- Cedars-Sinai Medical Center and UCLA, 8730 Alden Drive, Thalians W-157, Los Angeles, CA 90048, USA.
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21
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Bol'shakov O, Kovacs J, Chahar M, Ha K, Khelashvili L, Katritzky AR. S- toN-Acyl transfer inS-acylcysteine isopeptides via 9-, 10-, 12-, and 13-membered cyclic transition states. J Pept Sci 2012; 18:704-9. [DOI: 10.1002/psc.2438] [Citation(s) in RCA: 7] [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] [Received: 05/08/2012] [Revised: 07/05/2012] [Accepted: 07/06/2012] [Indexed: 11/06/2022]
Affiliation(s)
- Oleg Bol'shakov
- Center for Heterocyclic Compounds, Department of Chemistry; University of Florida; Gainesville; FL; 32611-7200; USA
| | - Judit Kovacs
- Center for Heterocyclic Compounds, Department of Chemistry; University of Florida; Gainesville; FL; 32611-7200; USA
| | - Mamta Chahar
- Center for Heterocyclic Compounds, Department of Chemistry; University of Florida; Gainesville; FL; 32611-7200; USA
| | - Khanh Ha
- Center for Heterocyclic Compounds, Department of Chemistry; University of Florida; Gainesville; FL; 32611-7200; USA
| | - Levan Khelashvili
- Center for Heterocyclic Compounds, Department of Chemistry; University of Florida; Gainesville; FL; 32611-7200; USA
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22
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Baldessarini RJ, Undurraga J, Vázquez GH, Tondo L, Salvatore P, Ha K, Khalsa HMK, Lepri B, Ha TH, Chang JS, Tohen M, Vieta E. Predominant recurrence polarity among 928 adult international bipolar I disorder patients. Acta Psychiatr Scand 2012; 125:293-302. [PMID: 22188017 DOI: 10.1111/j.1600-0447.2011.01818.x] [Citation(s) in RCA: 101] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To test the hypothesis that patients with bipolar disorder (BPD) differ demographically and clinically within subgroups based on the predominant-polarity of major recurrences. METHOD We tested factors for association with predominantly (≥2 : 1) depressive vs. mania-like episodes with 928 DSM-IV type-I BPD subjects from five international sites. RESULTS Factors preliminarily associated with predominant-depression included: electroconvulsive treatment, longer latency-to-BPD diagnosis, first episode depressive or mixed, more suicide attempts, more Axis-II comorbidity, ever having mixed-states, ever married, and female sex. Predominant-mania was associated with: initial manic or psychotic episodes, more drug abuse, more education, and more family psychiatric history. Of the 47.3% of subjects without polarity-predominance, risks for all factors considered were intermediate. Expanding the definition of polarity-predominance to ≥51% added little, but shifting mixed-states to 'predominant-depression' increased risk of suicidal acts from 2.4- to 4.5-fold excess over predominant-mania-hypomania, and suicidal risk was associated continuously with increasing proportions of depressive or mixed episodes. CONCLUSION Subtyping by predominant-polarity yielded predictive associations, including the polarity of first episodes and risk of suicide attempts. Such subtyping may contribute to improve planning of clinical care and to biological studies of BPD.
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Affiliation(s)
- R J Baldessarini
- International Consortium for Bipolar Disorder Research, McLean Division of Massachusetts General Hospital, Belmont, USA.
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Ha K, Chahar M, Monbaliu JCM, Todadze E, Hansen FK, Oliferenko AA, Ocampo CE, Leino D, Lillicotch A, Stevens CV, Katritzky AR. Long-Range Intramolecular S → N Acyl Migration: A Study of the Formation of Native Peptide Analogues via 13-, 15-, and 16-Membered Cyclic Transition States. J Org Chem 2012; 77:2637-48. [DOI: 10.1021/jo2023125] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Khanh Ha
- Center for Heterocyclic Compounds, Department
of Chemistry, University of Florida, Gainesville,
Florida 32611-7200, United States
| | - Mamta Chahar
- Center for Heterocyclic Compounds, Department
of Chemistry, University of Florida, Gainesville,
Florida 32611-7200, United States
| | - Jean-Christophe M. Monbaliu
- Center for Heterocyclic Compounds, Department
of Chemistry, University of Florida, Gainesville,
Florida 32611-7200, United States
- Department of Sustainable Organic Chemistry and Technology, Faculty
of Bioscience Engineering, Ghent University, B-9000 Ghent, Belgium
| | - Ekaterina Todadze
- Center for Heterocyclic Compounds, Department
of Chemistry, University of Florida, Gainesville,
Florida 32611-7200, United States
| | - Finn K. Hansen
- Center for Heterocyclic Compounds, Department
of Chemistry, University of Florida, Gainesville,
Florida 32611-7200, United States
- Institut für Pharmazeutische und Medizinische Chemie, Heinrich Heine Universität Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf, Germany
| | - Alexander A. Oliferenko
- Center for Heterocyclic Compounds, Department
of Chemistry, University of Florida, Gainesville,
Florida 32611-7200, United States
| | - Charles E. Ocampo
- Center for Heterocyclic Compounds, Department
of Chemistry, University of Florida, Gainesville,
Florida 32611-7200, United States
| | - David Leino
- Center for Heterocyclic Compounds, Department
of Chemistry, University of Florida, Gainesville,
Florida 32611-7200, United States
| | - Aaron Lillicotch
- Center for Heterocyclic Compounds, Department
of Chemistry, University of Florida, Gainesville,
Florida 32611-7200, United States
| | - Christian V. Stevens
- Department of Sustainable Organic Chemistry and Technology, Faculty
of Bioscience Engineering, Ghent University, B-9000 Ghent, Belgium
| | - Alan R. Katritzky
- Center for Heterocyclic Compounds, Department
of Chemistry, University of Florida, Gainesville,
Florida 32611-7200, United States
- Chemistry Department, King Abdulaziz University, Jeddah, 21589 Saudi Arabia
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Ha K, Monbaliu JCM, Williams BC, Pillai GG, Ocampo CE, Zeller M, Stevens CV, Katritzky AR. A convenient synthesis of difficult medium-sized cyclic peptides by Staudinger mediated ring-closure. Org Biomol Chem 2012; 10:8055-8. [DOI: 10.1039/c2ob25996f] [Citation(s) in RCA: 23] [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: 01/11/2023]
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25
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Ishak WW, Ha K, Kapitanski N, Bagot K, Fathy H, Swanson B, Vilhauer J, Balayan K, Bolotaulo NI, Rapaport MH. The impact of psychotherapy, pharmacotherapy, and their combination on quality of life in depression. Harv Rev Psychiatry 2011; 19:277-89. [PMID: 22098324 DOI: 10.3109/10673229.2011.630828] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Quality of life (QOL) is known to be negatively affected during the course of major depressive disorder. Various studies have documented the benefits of pharmacotherapy or psychotherapy alone on QOL in depression, with few studies examining combined treatment. This review will examine the evidence for the impact of each modality, as well as their combination, on QOL in depression. METHODS Using the key terms depression, depress*, major depress*, quality of life, antidepressant*, and psychotherapy, MEDLINE and PsycINFO searches were conducted to identify treatment-outcome studies that used known QOL measurements over the past twenty-six years (1984 to 2010). RESULTS Significant improvements in depressive symptomatology and QOL measurements were found with pharmacotherapy, psychotherapy, and their combination, with some studies showing greater improvement following combined treatment than with either intervention alone. CONCLUSIONS Substantial evidence suggests that psychotherapy, pharmacotherapy, and their combination have favorable effects on QOL in depression. While some studies have shown that combined therapy is superior than either of the two forms alone in improving QOL, additional research is needed to elucidate this effect. QOL measurement is an important dimension of treatment-outcome assessment in patients with depression.
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Affiliation(s)
- Waguih William Ishak
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, USA.
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Hansen FK, Ha K, Todadze E, Lillicotch A, Frey A, Katritzky AR. Microwave-assisted chemical ligation of S-acyl peptides containing non-terminal cysteine residues. Org Biomol Chem 2011; 9:7162-7. [PMID: 21879126 DOI: 10.1039/c1ob05740e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient approach for the synthesis of a series of S-acyl peptides containing internal cysteine residues has been developed and the chemical long-range ligation of these S-acyl peptides via 5-, 8-, 11- and 14-membered cyclic transition states has been investigated. Our results include the first examples of successful isopeptide ligations starting from S-acyl peptides containing non-terminal cysteine residues and indicate that the cyclic transition states studied in this present paper are decreasingly favored in the order of their sizes 5≫14>11≫8.
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Affiliation(s)
- Finn K Hansen
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, FL 32611-7200, USA
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Bokarius A, Ha K, Poland R, Bokarius V, Rapaport MH, Ishak WW. Attitude toward humor in patients experiencing depressive symptoms. Innov Clin Neurosci 2011; 8:20-23. [PMID: 22010061 PMCID: PMC3196329] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
OBJECTIVE This study measures the correlation between disposition to humor and level of depression to investigate openness to humorous interventions for the treatment of depression.Design, Participants, and Measurement: Individuals (n=200) with depression received questionnaires to assess their sense of humor and attitude toward humor using the Svebak's Humor Questionnaire and a disposition toward humor questionnaire. The correlation between Svebak's Humor Questionnaire scores and Quick Inventory of Depressive Symptomatology-Self Report scores was then measured. RESULTS were further analyzed by race, age, and gender to assess any emerging trends within those groups. RESULTS Svebak's Humor Questionnaire mean scores remained high across gender, race, and age. However, there was not a statistically significant correlation between the level of depression and sense of humor (r=-0.22). The only significant relationship noted was between disposition toward humor and depression was for subjects aged 70 and older (r=-0.83). CONCLUSION Though with certain limitations, these data provide preliminary support for the possibility that an appreciation of humor would persist despite symptoms of major depressive disorder. Clinicians could consider humor as part of an intervention in the treatment of depressive symptoms. The determination of the type of humor and manner of integrating it into therapy would require further study.
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Affiliation(s)
- Anna Bokarius
- Cedars-Sinai Medical Center, Department of Psychiatry and Behavioral Neurosciences, Los Angeles, California, USA
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Wollmann CG, Globits S, Ameri L, Thudt K, Kaiser B, Salomonowitz E, Mayr H, Wilkoff B, Styperek R, Jumrussirikul P, Mirro M, Wong W, Ha K, Healey J, Kaufman ES, Nair GM, Armaganijan LV, Divakaramenon S, Mairesse GH, Brandes A, Crystal E, Tomassoni G, Ryu K, Muir M, O'brien E, Hesselson A, Greenberg S, Hamati F, Styperek R, Alonso J, Peress D, Lee L, Bolanos O, Burger H, Opalka B, Goebel G, Ehrlich W, Walther W, Ziegelhoeffer T, Milasinovic G, Quartieri F, Compton S, Kristiansen N, Li P, Ramza B, Dovellini EV, Michelucci A, Trapani M, Buonamici P, Valenti R, Antoniucci D, Hero M, Guenoun M, Ferrer Hita JJ, Rodriguez-Gonzalez A, Machado-Machado P, Perez-Hernandez LM, Raya-Sanchez JA, Lara-Padron A, Bosa-Ojeda F, Marrero-Rodriguez F, Luedorff G, Grove R, Wolff E, Thale J, Kranig W, Niazi I, Ryu K, Choudhuri I, Akhtar M, Jais P, Maury P, Reddy VY, Neuzil P, Morgan K, Bordachar P, Ritter P, Haissaguerre M, Doering M, Braunschweig F, Gaspar T, Eitel C, Wetzel U, Nitsche B, Piorkowski C, Hindricks G, Gras D, Boulogne E, Simon M, Abraham W. Flash Presentations II. Europace 2011. [DOI: 10.1093/europace/eur218] [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: 11/12/2022] Open
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Ha K, Joo GS, Jha S, Yeon IJ, Kim YS. Miniaturisation of a capillary electrophoresis microchip for the sensing of endocrine disruptors. IET Nanobiotechnol 2010; 4:103-8. [DOI: 10.1049/iet-nbt.2010.0006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Kim J, Suh I, Ha K, Lee SY, Lee SY, Shin C, Shim J, In K, Kang K, Yoo S. 57P FACTOR XIII TRANSGLUTAMINASE IN NON-SMALL CELL LUNG CANCER. Lung Cancer 2009. [DOI: 10.1016/s0169-5002(09)70180-1] [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: 11/16/2022]
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Lee S, Kyung S, An C, Jeong S, Kim Y, Kim M, Ha K, Choi D, Kang S, Chung Y. Nonspecific Bronchial Hyperresponsiveness Caused by T. canis 2nd Stage Larval Infestation. J Allergy Clin Immunol 2007. [DOI: 10.1016/j.jaci.2006.12.231] [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: 11/26/2022]
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Zhang L, Ha K, Kleintop B, Phillips S. Differences in In Vitro Dissolution Rates Using Single-Point and Multi-Point Sampling. DISSOLUT TECHNOL 2007. [DOI: 10.14227/dt140407p27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Song AR, Hwang IC, Ha K. Refinement of the crystal structure of Ƞ-((1,2,5,6Ƞ:3,4,7,8-Ƞ)-1,3,5,7- cyclooctatetraene)bis(dimethylplatinum(II)), [Pt(CH3)2]2(C8H8), at 243 K. Z KRIST-NEW CRYST ST 2006. [DOI: 10.1524/ncrs.2006.0159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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35
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Hwang IC, Ha K. Crystal structure of aqua(N, N, N', N'-tetrakis(2-pyridylmethyl)-1,2- diaminocyclohexane)manganese(II) dibromide tetrahydrate, [Mn{C6H10N2(C6H6N)4}(H2O)]Br2 · 4H2O. Z KRIST-NEW CRYST ST 2006. [DOI: 10.1524/ncrs.2006.0158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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36
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Song AR, Hwang IC, Ha K. Crystal structures of dichloro((1,2,5,6-Ƞ)-1,3,5,7-cyclooctatetraene)- platinum(II), PtCl2(C8H8), and diiodo((1,2,5,6-Ƞ)-1,3,5,7-cyclooctatetraene) platinum(II), PtI2(C8H8). Z KRIST-NEW CRYST ST 2006. [DOI: 10.1524/ncrs.2006.0157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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37
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Hwang IC, Ha K. Crystal structure of aquachloro[N,N′-bis(3-ethoxysalicylidene)ethylenediiminato] manganese(III) dihydrate, [Mn(C20H22N2O4)Cl(H2O)] · 2H2O. Z KRIST-NEW CRYST ST 2006. [DOI: 10.1524/ncrs.2006.0111] [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: 11/24/2022]
Abstract
Abstract C20H28ClMnN2O7, monoclinic, P121/n1 (no. 14), a = 11.863(1) Å, b = 13.960(2) Å, c = 14.005(2) Å, β = 103.990(2)°, V = 2250.4 Å3, Z = 4, Rgt(F) = 0.061, wRref(F2) = 0.170, T = 293 K.
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Affiliation(s)
- I.-C. Hwang
- 1Pohang University of Science and Technology, Department of Chemistry, Pohang 790-784, Republic of Korea
| | - K. Ha
- 2Chonnam National University, Faculty of Applied Chemical Engineering, Gwangju 500-757, Republic of Korea
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Lee YB, Kim TH, Hwang IC, Ha K. Crystal structure of N-benzoyl-4,4-dimethyl-2-methylamino-2-thiazoline, C13H16N2OS. Z KRIST-NEW CRYST ST 2006. [DOI: 10.1524/ncrs.2006.0113] [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: 11/24/2022]
Abstract
Abstract C13H16N2OS, monoclinic, C12/c1 (no. 15), a = 21.908(2) Å, b = 13.932(2) Å, c = 8.7971(9) Å, β = 101.952(2)°, V = 2626.9 Å3, Z = 8, Rgt(F) = 0.041, wRref(F2) = 0.113, T = 293 K.
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Affiliation(s)
- Y. B. Lee
- 1Chonnam National University, Faculty of Applied Chemical Engineering, Gwangju 500-757, Republic of Korea
| | - T. H. Kim
- 1Chonnam National University, Faculty of Applied Chemical Engineering, Gwangju 500-757, Republic of Korea
| | - I.-C. Hwang
- 2Pohang University of Science and Technology, Department of Chemistry, Pohang 790-784, Republic of Korea
| | - K. Ha
- 1Chonnam National University, Faculty of Applied Chemical Engineering, Gwangju 500-757, Republic of Korea
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Hwang IC, Ha K. Crystal structure of aquachloro[N,N′-bis(3-ethoxysalicylidene)propylenediiminato] manganese(III) dihydrate, [Mn(C21H24N2O4)Cl(H2O)] · 2H2O. Z KRIST-NEW CRYST ST 2006. [DOI: 10.1524/ncrs.2006.0112] [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: 11/24/2022]
Abstract
Abstract C21H30ClMnN2O7, triclinic, P1̅ (no. 2), a = 10.029(2) Å, b = 11.561(2) Å, c = 11.689(2) Å, α = 106.331(3)°, β = 107.874(3)°, γ = 99.092(3)°, V = 1192.8 Å3, Z = 2, Rgt(F) = 0.071, wRref(F2) = 0.238, T = 293 K.
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Affiliation(s)
- I.-C. Hwang
- 1Pohang University of Science and Technology, Department of Chemistry, Pohang 790-784, Republic of Korea
| | - K. Ha
- 2Chonnam National University, Faculty of Applied Chemical Engineering, Gwangju 500-757, Republic of Korea
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Jang MH, Ha K, Jung JM, Lee YJ, Takamura N. Increased microcystin production of Microcystis aeruginosa by indirect exposure of nontoxic cyanobacteria: potential role in the development of Microcystis bloom. Bull Environ Contam Toxicol 2006; 76:957-62. [PMID: 16855901 DOI: 10.1007/s00128-006-1011-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2006] [Accepted: 04/20/2006] [Indexed: 05/10/2023]
Affiliation(s)
- M-H Jang
- National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba 305-8506, Japan
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Song AR, Hwang IC, Ha K. Refinement of the crystal structure of μ-((1,2,5,6-η:3,4,7,8-η)-1,3,5,7- cyclooctatetraene)bis(dimethylplatinum(II)), [Pt(CH3)2]2(C8H8), at 243 Κ. Z KRIST-NEW CRYST ST 2006. [DOI: 10.1524/ncrs.2006.221.14.471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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42
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Hwang IC, Ha K. Crystal structure of aquachloro[N,N'-bis(3-ethoxysalicylidene)propylenediiminato) manganese(III) dihydrate, [Mn(C21H24N2O4)Cl(H2O)] · 2H2O. Z KRIST-NEW CRYST ST 2006. [DOI: 10.1524/ncrs.2006.221.14.365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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43
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Song AR, Hwang IC, Ha K. Crystal structures of dichloro((1,2,5,6-η)-1,3,5,7-cyclooctatetraene)- platinum(II), PtCl2(C8H8), and diiodo((1,2,5,6-η)-1,3,5,7-cyclooctatetraene) platinum(II), PtI2(C8H8). Z KRIST-NEW CRYST ST 2006. [DOI: 10.1524/ncrs.2006.221.14.465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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44
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Lee ΥB, Kim ΤH, Hwang IC, Ha K. Crystal structure of TV-benzoyl-4,4-dimethyl-2-methylamino-2-thiazoline, C13H16N2OS. Z KRIST-NEW CRYST ST 2006. [DOI: 10.1524/ncrs.2006.221.14.367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Hwang IC, Ha K. Crystal structure of aquachloro[N,N'-bis(3-ethoxysalicylidene)ethylene-diiminato]manganese(III)dihydrate,[Mn(C20H22N2O4)Cl(H2O)]·2H2O. Z KRIST-NEW CRYST ST 2006. [DOI: 10.1524/ncrs.2006.221.14.363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abstract
The development of azole resistance in Candida albicans is most problematic in patients with AIDS who receive long courses of drug for therapy or prevention of oral candidiasis. Recently, the rapid development of resistance was noted in other immunosuppressed patients who developed disseminated candidiasis despite fluconazole prophylaxis. One of these series of C. albicans isolates became resistant, with an associated increase in mRNA specific for a CDR ATP-binding cassette transporter efflux pump (K. A. Marr, C. N. Lyons, T. R. Rustad, R. A. Bowden, and T. C. White, Antimicrob. Agents Chemother. 42:2584-2589, 1998). Here we study this series of C. albicans isolates further and examine the mechanism of azole resistance in a second series of C. albicans isolates that caused disseminated infection in a recipient of bone marrow transplantation. The susceptible isolates in both series become resistant to fluconazole after serial growth in the presence of drug, while the resistant isolates in both series become susceptible after serial transfer in the absence of drug. Population analysis of the inducible, transiently resistant isolates reveals a heterogeneous population of fluconazole-susceptible and -resistant cells. We conclude that the rapid development of azole resistance occurs by a mechanism that involves selection of a resistant clone from a heterogeneous population of cells.
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Affiliation(s)
- K A Marr
- Program in Infectious Diseases, Fred Hutchinson Cancer Research Center, University of Washington, Seattle, WA 98109-1024, USA
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Kumakura N, Ito H, Mori T, Saito T, Kurisu E, Asaka A, Sasaki Y, Rhi B, Kim Y, Ha K. Attitude change towards mental illness during nursing education--a cross-cultural study of student nurses in Korea, Republic of China and Japan. Asia Pac J Public Health 1992; 6:120-5. [PMID: 1342798 DOI: 10.1177/101053959200600301] [Citation(s) in RCA: 5] [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] [Indexed: 12/26/2022]
Abstract
This is an initial report of a cooperative project by colleagues in Korea, the Republic of China (Taiwan) and Japan, involving the measuring of attitudes toward mental illness. The discussion mainly revolves around the influence of mental health education in nursing on attitudes towards mental illness. The subjects' attitudes were assessed by Wig's profiles. The attitudes of freshmen who had just entered nursing schools and seniors who had already finished clinical training in psychiatry were compared to measure the attitude change during the course of nursing education, if any. Non-medical students served as a control group. As a result, a seemingly "negative and pessimistic" attitude was demonstrated in the senior student nurses. The findings are examined and discussed.
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Affiliation(s)
- N Kumakura
- Department of Mental Health, School of Health Sciences, Tokyo University, Japan
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Abstract
By using a panel of monoclonal antibodies in combination with conventional morphological and histochemical studies, seven leukemic patients were diagnosed as having T-cell lymphocytic leukemia (ALL) and three patients were classified as having acute undifferentiated leukemia (AUL). When genomic DNA from each patient was analysed by the Southern blot hybridization technique, two out of seven cases with T-cell ALL and two of three cases with AUL demonstrated immunoglobulin (Ig) mu gene rearrangements. Interestingly, the patterns of C mu gene rearrangement found in these four cases as well as in the T-cell line HSB-2 were quite similar with rearrangement of a single allele and germ line configuration retained in the other allele. Ig gene rearrangement is an essential property of cells of B-lineage, but detection of an Ig gene rearrangement by itself seems insufficient to assign commitment to B-lineage differentiation. The significance of Ig gene rearrangements in T-cell ALL is unclear, but this heterogeneity at the DNA level among T-cell ALL may reflect differences in leukemogeneis and have prognostic and therapeutic implications.
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Ha K, Hozumi N, Hrincu A, Gelfand EW. Lineage specific classification of leukaemia: results of the analysis of sixty cases of childhood leukaemia. Br J Haematol 1985; 61:237-49. [PMID: 2931098 DOI: 10.1111/j.1365-2141.1985.tb02822.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In addition to conventional morphological, histochemical and immunological marker studies, cells from 60 children with leukaemia were further analysed using the Southern blot hybridization technique to look at differences in the organization of immunoglobulin (Ig) genes. Of the 60 patients studied by conventional means, 47 were diagnosed as acute lymphocytic leukaemia (ALL) and 13 as non-lymphocytic leukaemia. Seven patients were initially classified as T ALL and 40 as non-T, non-B ALL. Further subclassification of the 40 patients with non-T, non-B ALL indicated three pre-B ALL and 29 patients diagnosed as common ALL, expressing Ia and CALLA antigens. All 29 patients with common ALL demonstrated C mu gene rearrangements with or without light chain (kappa and lambda) genes rearrangement. Based on the developmental hierarchy of Ig gene rearrangement, it was possible to further subclassify the patients with common ALL into different stages of B cell development. Eight (of the 40) patients with non-T, non-B ALL were identified as CALLA- but further analysis indicated T-lineage origin in two patients and three patients were reclassified as acute undifferentiated leukaemia (AUL). C mu gene rearrangements were detected in two patients with T ALL, two patients with AUL and one patient with acute myelogenous leukaemia (AML). In contrast to the patients with common ALL, Ig gene rearrangement observed in these non-B-lineage cells was restricted to a single C mu gene while retaining germ-line configuration of the other allele of the C mu gene and both light chain genes.
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Abstract
Although phenotypic heterogeneity of childhood T-cell acute lymphocytic leukemia (T-ALL) which bear receptors for sheep red blood cells (E-rosettes) and/or T-cell-associated antigens has been reported, there are certain clinical features which are shared by most patients. A mediastinal mass is one of the most characteristic presentations in this particular disorder. This report describes four children with ALL, who presented with a mediastinal mass. Three patients were E-rosette-negative and one was E-rosette-positive. Individual surface phenotypes, defined by a panel of monoclonal antibodies, were quite different. Since Ig gene organization is an essential property of cells of B-lineage, it was surprising to find that analysis of genomic DNA revealed immunoglobulin (Ig) gene rearrangements in two of them. These findings suggest that there is significant heterogeneity even among those leukemias associated with a mediastinal mass, and that a mediastinal mass may not clearly indicate origin from cells of T-lineage. This heterogeneity may reflect differences in leukemogenesis and may have prognostic and therapeutic implications.
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