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Thakur A, Mallory H, Chung K, Vallabhaneni D, Dharmasiri U, Legmann R. Oncolytic virus scalability affinity chromatography process. Cytotherapy 2020. [DOI: 10.1016/j.jcyt.2020.03.271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Xiang L, Calderon A, Hinojosa-Laborde C, Ryan K, Hudson I, Klemcke H, Chung K. Extremity trauma impairs renal tolerance to hemorrhage. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.04463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Elster E, Potter BK, Chung K. Response to COVID-19 by the surgical community. Surgery 2020; 167:907-908. [PMID: 32307095 PMCID: PMC7163184 DOI: 10.1016/j.surg.2020.03.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 03/27/2020] [Indexed: 11/19/2022]
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Dado D, Basel A, Ainsworth C, Chung K, Thomas S, Batchinsky A, Morrow B, Sams V, Piper L. 1397: OUTCOMES AMONG PATIENTS TREATED WITH RENAL REPLACEMENT THERAPY DURING ECMO. Crit Care Med 2020. [DOI: 10.1097/01.ccm.0000645504.46781.dc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Thomas S, Woo I, Ho J, Jones T, Paulson R, Chung K, Bendikson K. Ovulation rates in a stair-step protocol with Letrozole vs clomiphene citrate in patients with polycystic ovarian syndrome. Contracept Reprod Med 2019; 4:20. [PMID: 31867117 PMCID: PMC6900839 DOI: 10.1186/s40834-019-0102-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 10/22/2019] [Indexed: 01/20/2023] Open
Abstract
Purpose To compare ovulation rates between Letrozole and Clomiphene Citrate (CC) using a stair-step protocol to achieve ovulation induction in women with Polycystic Ovarian Syndrome (PCOS). Methods This is a retrospective cohort of predominantly Hispanic PCOS women of reproductive age who completed ovulation induction (OI) comparing women who underwent Letrozole stair-step protocol to those who underwent OI with CC stair-step. All women had a diagnosis of PCOS based on the 2003 Rotterdam criteria. For both protocols, sequentially higher doses of Letrozole or CC were given 7 days after the last dose if no dominant follicles were seen on ultrasonography. The primary outcome was ovulation rate (determined by presence of a dominant follicle) between the two treatment groups. Secondary outcomes included time to ovulation, clinical pregnancy rates and side effects. Results 49 PCOS patients completed a Letrozole stair-step cycle and 43 completed a CC stair-step cycle for OI. Overall, demographics were comparable between both groups. Ovulation rates with the Letrozole stair-step protocol were equivalent to CC stair-step protocol (96% vs 88%, p = 0.17). Although the mean time (days) to ovulation was shorter in the Letrozole group (19.5 vs 23.1, p = 0.027), the pregnancy rates were similar for both groups. Conclusions This is the first study to date that has compared the efficacy of the stair-step protocol in PCOS patients using Letrozole and CC. Both Letrozole and CC can be prescribed in a stair-step fashion. Letrozole stair-step was as efficacious as CC stair-step; patients achieved comparable rates of ovulation and clinical pregnancy. Time to ovulation was shorter in the Letrozole protocol.
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Luke J, Fong L, Chung K, Tolcher A, Kelly K, Hollebecque A, Le Tourneau C, Subbiah V, Tsai F, Kao S, Cassier P, Khasraw M, Allaire K, Fan F, Fang H, Patel M, Henner W, Hayflick J, McDevitt M, Barlesi F. Phase I study evaluating safety, pharmacokinetics (PK), pharmacodynamics, and preliminary efficacy of ABBV-428, first-in-class mesothelin (MSLN)-CD40 bispecific, in patients (pts) with advanced solid tumours. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz253.046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Elzinga K, Chung K. Evolution of the Ring Concept for the Forearm and Its Implication on Treatment: From Galeazzi, Monteggia, Essex-Lopresti, and Darrach to the Current Era. J Hand Surg Asian Pac Vol 2019; 24:251-257. [PMID: 31438785 DOI: 10.1142/s2424835519300019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Geometrically, rings distribute their stress along their arc instead of concentrating at any one point. The forearm ring is composed of the radius, ulna, proximal radioulnar joint, and distal radioulnar joint. The annular ligament, interosseous membrane, and triangular fibrocartilage complex link and stabilize the ring. Injuries to the forearm occur along a continuum with recognized patterns of ring disruption, including Galeazzi, Monteggia, and Essex-Lopresti injuries. The Darrach procedure causes a disruption to the forearm ring and can lead to painful convergence between the radius and distal ulnar stump. Injuries to the forearm ring are unstable. Management of forearm injuries is centered on the restoration of the anatomy and stability of the forearm ring. Forearm ring injuries and their treatment are discussed in this article.
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Saelices L, Nguyen BA, Chung K, Wang Y, Ortega A, Lee JH, Eisenberg DS. P3-161: AMYLOID SEEDING OF TRANSTHYRETIN CAUSED BY ATTR EX-VIVO FIBRILS AND ITS INHIBITION. Alzheimers Dement 2019. [DOI: 10.1016/j.jalz.2019.06.3190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Radford J, Kahl B, Hamadani M, Carlo-Stella C, O'Connor O, Ardeshna K, Feingold J, He S, Reid E, Solh M, Chung K, Heffner L, Ungar D, Caimi P. ANALYSIS OF EFFICACY AND SAFETY OF LONCASTUXIMAB TESIRINE (ADCT-402) BY DEMOGRAPHIC AND CLINICAL CHARACTERISTICS IN RELAPSED/REFRACTORY DIFFUSE LARGE B-CELL LYMPHOMA. Hematol Oncol 2019. [DOI: 10.1002/hon.60_2629] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Cannon J, Pamplin J, Zonies D, Mason P, Sine C, Cancio L, McNeill J, Colombo C, Osborn E, Ricca R, Allan P, DellaVolpe J, Chung K, Stockinger Z. Acute Respiratory Failure. Mil Med 2019; 183:123-129. [PMID: 30189088 DOI: 10.1093/milmed/usy151] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Indexed: 11/12/2022] Open
Abstract
Acute respiratory distress syndrome (ARDS) is a condition affecting critically ill patients, characterized by pulmonary inflammation and defects in oxygenation due to either direct or indirect injury to the lungs. These guidelines will define the diagnosis and management of ARDS, particularly among combat casualties and patients in the deployed environment. The cornerstone of management of ARDS involves maintaining adequate oxygenation while avoiding further pulmonary injury through lung-protective ventilation. Additional strategies for advanced respiratory failure, such as prone positioning, neuromuscular blockade, and extracorporeal membrane oxygenation will be reviewed here as well. Particularly important to the care of the patient with ARDS in the deployed environment is a familiarity with the challenges and indications for transport/aeromedical evacuation.
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Mandelbaum R, Matsuo K, Awadalla M, Shoupe D, Chung K. Risk of ovarian torsion in patients with ovarian hyperstimulation syndrome. Fertil Steril 2019. [DOI: 10.1016/j.fertnstert.2019.02.116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Mandelbaum R, Adams C, Shoupe D, Chung K, Roman L, Matsuo K. Utilization and outcomes of ovarian conservation at the time of hysterectomy for cervical cancer. Fertil Steril 2019. [DOI: 10.1016/j.fertnstert.2019.02.085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Thomas S, Rhodes-Long K, Bendikson K, Chung K, Paulson R, McGinnis L, Ahmady A. Examining the effects of temperature on embryo growth. Fertil Steril 2019. [DOI: 10.1016/j.fertnstert.2019.02.090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Saelices L, Nguyen BA, Chung K, Wang Y, Ortega A, Lee JH, Coelho T, Bijzet J, Benson MD, Eisenberg DS. A pair of peptides inhibits seeding of the hormone transporter transthyretin into amyloid fibrils. J Biol Chem 2019; 294:6130-6141. [PMID: 30733338 DOI: 10.1074/jbc.ra118.005257] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 01/22/2019] [Indexed: 11/06/2022] Open
Abstract
The tetrameric protein transthyretin is a transporter of retinol and thyroxine in blood, cerebrospinal fluid, and the eye, and is secreted by the liver, choroid plexus, and retinal epithelium, respectively. Systemic amyloid deposition of aggregated transthyretin causes hereditary and sporadic amyloidoses. A common treatment of patients with hereditary transthyretin amyloidosis is liver transplantation. However, this procedure, which replaces the patient's variant transthyretin with the WT protein, can fail to stop subsequent cardiac deposition, ultimately requiring heart transplantation. We recently showed that preformed amyloid fibrils present in the heart at the time of surgery can template or seed further amyloid aggregation of native transthyretin. Here we assess possible interventions to halt this seeding, using biochemical and EM assays. We found that chemical or mutational stabilization of the transthyretin tetramer does not hinder amyloid seeding. In contrast, binding of the peptide inhibitor TabFH2 to ex vivo fibrils efficiently inhibits amyloid seeding by impeding self-association of the amyloid-driving strands F and H in a tissue-independent manner. Our findings point to inhibition of amyloid seeding by peptide inhibitors as a potential therapeutic approach.
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Qiu W, Kuang H, Nair J, Assis Z, Najm M, McDougall C, McDougall B, Chung K, Wilson AT, Goyal M, Hill MD, Demchuk AM, Menon BK. Radiomics-Based Intracranial Thrombus Features on CT and CTA Predict Recanalization with Intravenous Alteplase in Patients with Acute Ischemic Stroke. AJNR Am J Neuroradiol 2018; 40:39-44. [PMID: 30573458 DOI: 10.3174/ajnr.a5918] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 10/21/2018] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Thrombus characteristics identified on non-contrast CT (NCCT) are potentially associated with recanalization with intravenous (IV) alteplase in patients with acute ischemic stroke (AIS). Our aim was to determine the best radiomics-based features of thrombus on NCCT and CT angiography associated with recanalization with IV alteplase in AIS patients and proximal intracranial thrombi. MATERIALS AND METHODS With a nested case-control design, 67 patients with ICA/M1 MCA segment thrombus treated with IV alteplase were included in this analysis. Three hundred twenty-six radiomics features were extracted from each thrombus on both NCCT and CTA images. Linear discriminative analysis was applied to select features most strongly associated with early recanalization with IV alteplase. These features were then used to train a linear support vector machine classifier. Ten times 5-fold cross-validation was used to evaluate the accuracy of the trained classifier and the stability of the selected features. RESULTS Receiver operating characteristic curves showed that thrombus radiomics features are predictive of early recanalization with IV alteplase. The combination of radiomics features from NCCT, CTA, and radiomics changes is best associated with early recanalization with IV alteplase (area under the curve = 0.85) and was significantly better than any single feature such as thrombus length (P < .001), volume (P < .001), and permeability as measured by mean attenuation increase (P < .001), maximum attenuation in CTA (P < .001), maximum attenuation increase (P < .001), and assessment of residual flow grade (P < .001). CONCLUSIONS Thrombus radiomics features derived from NCCT and CTA are more predictive of recanalization with IV alteplase in patients with acute ischemic stroke with proximal occlusion than previously known thrombus imaging features such as length, volume, and permeability.
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Joo Y, Lee H, Lee S, Parahipta D, Kang D, Chung K, Kim D, Kim S. PSXIII-42 Effects of alkaloid rich potato by-product on in vitro rumen digestibility and fermentation characteristics. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Chung K, Chang S, Yang S, Hwang S, Kang D, Park B, Kwon E. PSXV-28 α-solanine induces myogenesis of bovine satellite cells but does not affect adipogenesis of adipocytes. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Gajaweera C, Chung K, Cho S, Lee S. 346 Assessment of carcass and meat quality of Longissimus dorsi and semimembranosus muscle with Korean meat quality grading standards. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Rahmanian S, Chung K, Kokozian C, Knighten M, Flores J, Alcantara M. EDUCATING LATINO TERMINALLY-ILL PATIENTS USING SPANISH-LANGUAGE HOSPICE VIDEO: INCREASING HOSPICE ENROLLMENT. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.2436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Spira A, Chung K, Patnaik A, Tolcher A, Blaney M, Parikh A, Reddy A, Henner W, McDevitt M, Afar D, Powderly J. Safety, tolerability, and pharmacokinetics of the OX40 agonist ABBV-368 in patients with advanced solid tumors. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy288.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Plummer R, Cook N, Arkenau T, Melear J, Redfern C, Spira A, Chung K, Haddad T, Ramalingam S, Wesolowski R, Dean E, Goddemeier T, Falk M, Shapiro G. Phase I dose expansion data for M6620 (formerly VX-970), a first-in-class ATR inhibitor, combined with gemcitabine (Gem) in patients (pts) with advanced non-small cell lung cancer (NSCLC). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy292.059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Thomas S, Kitapci T, Campo D, Woo I, Bendikson K, Chung K, Paulson R, Ahmady A, McGinnis L. miRNA from follicular extracellular vesicles target cell proliferation in young women with diminished ovarian reserve. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Maggiore P, Bellinge J, Chieng D, White D, Lan NSR, Jaltotage B, Ali U, Gordon M, Chung K, Stobie P, Ng J, Hankey GJ, McQuillan B. Ischaemic Stroke and the Echocardiographic "Bubble Study": Are We Screening the Right Patients? Heart Lung Circ 2018; 28:1183-1189. [PMID: 30131285 DOI: 10.1016/j.hlc.2018.07.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 05/08/2018] [Accepted: 07/18/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND Patent foramen ovale (PFO) is a potential mechanism for paradoxical embolism in cryptogenic ischaemic stroke or transient ischaemic attack (TIA). PFO is typically demonstrated with agitated saline ("bubble study", BS) during echocardiography. We hypothesised that the BS is frequently requested in patients that have a readily identifiable cause of stroke, that any PFO detected is likely incidental, and its detection often does not alter management. METHODS This was a retrospective observational study of patients with recent ischaemic stroke/TIA referred for a BS. Patient demographics, stroke risk factors, vascular/cerebral imaging results and transoesophageal echocardiogram (TOE) reports were recorded. A "modified" Risk of Paradoxical Embolism (RoPE) score was calculated. Change in management was defined as antiplatelet/anticoagulant therapy alteration or referral for PFO closure. Bubble Study complications were recorded. RESULTS Among 715 patients with ischaemic stroke/TIA referred for a BS, 8.7% had atrial fibrillation and 9.2% had carotid stenosis ≥70%. At least three stroke risk factors were present in 39.3% and only 47.1% of patients screened had a "modified" RoPE score of >5. A PFO was detected in 248 patients of whom only 31% (77/248) had a subsequent change in management. Of BS performed, 1/924 patients (0.1%) suffered a TIA as a complication. CONCLUSIONS The echocardiographic BS is frequently performed in patients that have a readily identifiable cause of stroke and whose PFO unlikely relates to the stroke/TIA. Bubble Study findings resulted in a change in management in the minority. The procedure is safe but the complication rate warrants informed consent.
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Chung K, Strange G, Naing P, Codde J, Celermajer D, Scalia GM, Playford D. P4541Assessing the cause of pulmonary hypertension on echo in the absence of tricuspid regurgitation - A NEDA (National Echo Database of Australia) study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4541] [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: 11/12/2022] Open
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Worthy SE, Haynes L, Chambers M, Bethune D, Kan E, Chung K, Ota R, Taylor CJ, Glater EE. Identification of attractive odorants released by preferred bacterial food found in the natural habitats of C. elegans. PLoS One 2018; 13:e0201158. [PMID: 30036396 PMCID: PMC6056031 DOI: 10.1371/journal.pone.0201158] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 07/10/2018] [Indexed: 01/26/2023] Open
Abstract
Food choice is critical for survival because organisms must choose food that is edible and nutritious and avoid pathogenic food. Many organisms, including the nematode C. elegans, use olfaction to detect and distinguish among food sources. C. elegans exhibits innate preferences for the odors of different bacterial species. However, little is known about the preferences of C. elegans for bacterial strains isolated from their natural environment as well as the attractive volatile compounds released by preferred natural bacteria isolates. We tested food odor preferences of C. elegans for non-pathogenic bacteria found in their natural habitats. We found that C. elegans showed a preference for the odor of six of the eight tested bacterial isolates over its standard food source, E. coli HB101. Using solid-phase microextraction and gas chromatography coupled with mass spectrometry, we found that four of six attractive bacterial isolates (Alcaligenes sp. JUb4, Providenica sp. JUb5, Providencia sp. JUb39, and Flavobacteria sp. JUb43) released isoamyl alcohol, a well-studied C. elegans attractant, while both non-attractive isolates (Raoultella sp. JUb38 and Acinetobacter sp. JUb68) released very low or non-detectable amounts of isoamyl alcohol. In conclusion, we find that isoamyl alcohol is likely an ethologically relevant odor that is released by some attractive bacterial isolates in the natural environment of C. elegans.
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