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Wood L, Aden J, Morris M, Bell D, Hunninghake J, Convertino V, Chung K. Correlation of Transcutaneous to Arterial Carbon Dioxide Levels in Shock: A Prospective Observational Study. Chest 2014. [DOI: 10.1378/chest.1992874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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102
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Gualtieri M, Miki T, Chung K, Bendikson K, Francis M, Paulson R. Successful telomere lengthening in induced pluripotent stem cells (IPSCS) derived from human granulosa cells (HGCS) of women with diminished ovarian reserve (DOR). Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.354] [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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103
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Hong C, Ju S, Ahn Y, Oh D, Noh J, Chung K, Kim J, Han Y, Choi D. SU-E-T-63: Carotid Sparing Tomohelical Three Dimensional Conformal Radiotherapy for T1N0 Glottic Cancer. Med Phys 2014. [DOI: 10.1118/1.4888393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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104
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Chung K, Kim J, Shin J, Han Y, Ju S, Hong C, Kim D, Kim H, Shin E, Ahn S, Chung S, Choi D. SU-E-T-239: Monte Carlo Modelling of SMC Proton Nozzles Using TOPAS. Med Phys 2014. [DOI: 10.1118/1.4888570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Ju S, Hong C, Kim M, Chung K, Kim J, Han Y, Ahn S, Chung S, Shin E, Shin J, Kim H, Kim D, Choi D. SU-E-T-195: Gantry Angle Dependency of MLC Leaf Position Error. Med Phys 2014. [DOI: 10.1118/1.4888525] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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106
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Hinojosa‐Laborde C, Shade R, Bauer C, Muniz G, Pidcoke H, Goei K, Chung K, Cap A, Convertino V. Validation of lower body negative pressure as an experimental model of hemorrhage (859.5). FASEB J 2014. [DOI: 10.1096/fasebj.28.1_supplement.859.5] [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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107
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Burks H, Ross L, Opper N, Stanczyk F, Chung K. Can Ultrasensitive Anti-Müllerian Hormone Testing Predict Failed Response to Ovarian Stimulation? Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2013.11.080] [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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108
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Gualtieri M, Miki T, Ross L, Chung K, Francis M, Paulson L, Paulson R. Successful Induction of Induced Pluripotent Stem Cells (iPSC's) from Human Granulosa Cells (hGC's). Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2013.11.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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109
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Ross L, Ingles S, Rudick B, Stanczyk F, Ma L, Chung K, Bendikson K. Correlation of Serum Anti-mullerian Hormone with Vitamin D Levels in Women Undergoing IVF and Egg Donation. Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2013.11.098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Oude Munnink BB, Canuti M, Deijs M, de Vries M, Jebbink MF, Rebers S, Molenkamp R, van Hemert FJ, Chung K, Cotten M, Snijders F, Sol CJA, van der Hoek L. Unexplained diarrhoea in HIV-1 infected individuals. BMC Infect Dis 2014; 14:22. [PMID: 24410947 PMCID: PMC3925291 DOI: 10.1186/1471-2334-14-22] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Accepted: 01/08/2014] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Gastrointestinal symptoms, in particular diarrhoea, are common in non-treated HIV-1 infected individuals. Although various enteric pathogens have been implicated, the aetiology of diarrhoea remains unexplained in a large proportion of HIV-1 infected patients. Our aim is to identify the cause of diarrhoea for patients that remain negative in routine diagnostics. METHODS In this study stool samples of 196 HIV-1 infected persons, including 29 persons with diarrhoea, were examined for enteropathogens and HIV-1. A search for unknown and unexpected viruses was performed using virus discovery cDNA-AFLP combined with Roche-454 sequencing (VIDISCA-454). RESULTS HIV-1 RNA was detected in stool of 19 patients with diarrhoea (66%) compared to 75 patients (45%) without diarrhoea. In 19 of the 29 diarrhoea cases a known enteropathogen could be identified (66%). Next to these known causative agents, a range of recently identified viruses was identified via VIDISCA-454: cosavirus, Aichi virus, human gyrovirus, and non-A non-B hepatitis virus. Moreover, a novel virus was detected which was named immunodeficiency-associated stool virus (IASvirus). However, PCR based screening for these viruses showed that none of these novel viruses was associated with diarrhoea. Notably, among the 34% enteropathogen-negative cases, HIV-1 RNA shedding in stool was more frequently observed (80%) compared to enteropathogen-positive cases (47%), indicating that HIV-1 itself is the most likely candidate to be involved in diarrhoea. CONCLUSION Unexplained diarrhoea in HIV-1 infected patients is probably not caused by recently described or previously unknown pathogens, but it is more likely that HIV-1 itself plays a role in intestinal mucosal abnormalities which leads to diarrhoea.
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Zee J, Sammel MD, Chung K, Takacs P, Bourne T, Barnhart KT. Ectopic pregnancy prediction in women with a pregnancy of unknown location: data beyond 48 h are necessary. Hum Reprod 2013; 29:441-7. [PMID: 24352889 DOI: 10.1093/humrep/det450] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
STUDY QUESTION Are there improvements in the accuracy of prediction of ectopic pregnancy (EP) in women with early symptomatic pregnancy using human chorionic gonadotrophin (hCG) curves when clinicians consider visits beyond the first 48 h after initial presentation? SUMMARY ANSWER Two hCG values, measured 48 h (2 days) apart, are often not sufficient to accurately predict the outcome of a woman with a pregnancy of unknown location (PUL), but adding a third visit on Day 4 or 7 significantly improved the prediction for 1 in 15 women. WHAT IS KNOWN ALREADY The use of serial hCG values is commonly used to aid in the prediction of the final diagnosis in women with a PUL. Initial outcome predictions based on two hCG values may often be incorrect. STUDY DESIGN, SIZE, DURATION This retrospective multicenter cohort study included 646 women with a PUL, recruited over 2 years. Of these women, 146 were ultimately diagnosed with EP. PARTICIPANTS/MATERIALS, SETTING, METHODS Women presenting to the emergency room with first trimester pain or bleeding, with a PUL, at least 2 hCG values and a definitive final diagnosis from the University of Pennsylvania, University of Miami and University of Southern California, were recruited from 2007 to 2009. MAIN RESULTS AND THE ROLE OF CHANCE Using currently recommended prediction rules, adding a third hCG evaluation on Day 4 after initial presentation significantly improved the accuracy of initial prediction from the first two values (48 h apart, or Day 2) by 9.3% (P = 0.015). Adding a third value on Day 7 improved prediction significantly by 6.7% (P = 0.031), compared with prediction based on first two values. The improvement in prediction by assessing four hCG values (Days 0, 2, 4 and 7) compared with three values (Days 0, 2 and 4) was 1.3% and not statistically significant. LIMITATIONS, REASONS FOR CAUTION Missing data imputation likely biased results toward the null; predicted outcomes may not match those made by clinicians; and the study does not predict intrauterine pregnancy and spontaneous miscarriage separately. WIDER IMPLICATIONS OF THE FINDINGS This study provides useful information for the prediction of outcomes for women with a symptomatic first trimester pregnancy of unknown location, but may not be generalizable to all pregnant women. STUDY FUNDING/COMPETING INTEREST(S) Supported by NIH grant numbers R01-HD036455 to Dr Barnhart and Dr Sammel, K24HD060687 to Dr Barnhart, and 5T32MH065218 to Ms. Zee. The authors have no conflicts of interest to declare.
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Salinas J, Serio-Melvin M, Fenrich C, Driscoll I, Garcia A, Mann-Salinas E, Cancio L, Chung K. 1358. Crit Care Med 2013. [DOI: 10.1097/01.ccm.0000440588.76414.90] [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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113
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Haunschild C, Sammel M, Chung K, DeMichele A, Su H. Pre-chemotherapy levels of follicle stimulating hormone and anti-mullerian hormone predict time to return of ovarian function in young breast cancer patients. Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.07.1814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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114
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Chung K, Stanczyk F, Ma L, Sammel M, Haunschild C, Su I. Can ultrasensitive AMH assays detect ovarian function in older reproductive-aged women with breast cancer? Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.07.1489] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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115
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Turaga K, Levine E, Barone R, Sticca R, Petrelli N, Lambert L, Nash G, Morse M, Adbel-Misih R, Alexander HR, Attiyeh F, Bartlett D, Bastidas A, Blazer T, Chu Q, Chung K, Dominguez-Parra L, Espat NJ, Foster J, Fournier K, Garcia R, Goodman M, Hanna N, Harrison L, Hoefer R, Holtzman M, Kane J, Labow D, Li B, Lowy A, Mansfield P, Ong E, Pameijer C, Pingpank J, Quinones M, Royal R, Salti G, Sardi A, Shen P, Skitzki J, Spellman J, Stewart J, Esquivel J. Consensus guidelines from The American Society of Peritoneal Surface Malignancies on standardizing the delivery of hyperthermic intraperitoneal chemotherapy (HIPEC) in colorectal cancer patients in the United States. Ann Surg Oncol 2013; 21:1501-5. [PMID: 23793364 DOI: 10.1245/s10434-013-3061-z] [Citation(s) in RCA: 140] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Indexed: 11/18/2022]
Abstract
BACKGROUND The American Society of Peritoneal Surface Malignancies (ASPSM) is a consortium of cancer centers performing cytoreductive surgery with hyperthermic intraperitoneal chemotherapy (HIPEC). This is a position paper from the ASPSM on the standardization of the delivery of HIPEC. METHODS A survey was conducted of all cancer centers performing HIPEC in the United States. We attempted to obtain consensus by the modified method of Delphi on seven key HIPEC parameters: (1) method, (2) inflow temperature, (3) perfusate volume, (4) drug, (5) dosage, (6) timing of drug delivery, and (7) total perfusion time. Statistical analysis was performed using nonparametric tests. RESULTS Response rates for ASPSM members (n = 45) and non-ASPSM members (n = 24) were 89 and 33 %, respectively. Of the responders from ASPSM members, 95 % agreed with implementing the proposal. Majority of the surgical oncologists favored the closed method of delivery with a standardized dual dose of mitomycin for a 90-min chemoperfusion for patients undergoing cytoreductive surgery for peritoneal carcinomatosis of colorectal origin. CONCLUSIONS This recommendation on a standardized delivery of HIPEC in patients with colorectal cancer represents an important first step in enhancing research in this field. Studies directed at maximizing the efficacy of each of the seven key elements will need to follow.
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Chung K, Yoon M, Son J, Park S, Lee K, Shin D, Lim Y, Lee S. SU-E-T-194: Radiochromic Film Based Transit Dosimetry for Verification of Dose Delivery with Intensity Modulated Radiotherapy. Med Phys 2013. [DOI: 10.1118/1.4814629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Kim D, Chung W, Shin D, Park S, Chung K, Yoon M. SU-E-T-260: Risk of Second Cancer From Scattered Dose During the Radiation Therapy with Lung Cancer. Med Phys 2013. [DOI: 10.1118/1.4814695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Chung K, Rozumov E, Kaminsky D, Anderson P, Cook P, Sawka W, McPherson M, Buescher T. Development of Electrically Controlled Energetic Materials (ECEM). ACTA ACUST UNITED AC 2013. [DOI: 10.1149/05040.0059ecst] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Chung K, Banik SM, De Crisci AG, Pearson DM, Blake TR, Olsson JV, Ingram AJ, Zare RN, Waymouth RM. Chemoselective Pd-catalyzed oxidation of polyols: synthetic scope and mechanistic studies. J Am Chem Soc 2013; 135:7593-602. [PMID: 23659308 DOI: 10.1021/ja4008694] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The regio- and chemoselective oxidation of unprotected vicinal polyols with [(neocuproine)Pd(OAc)]2(OTf)2 (1) (neocuproine = 2,9-dimethyl-1,10-phenanthroline) occurs readily under mild reaction conditions to generate α-hydroxy ketones. The oxidation of vicinal diols is both faster and more selective than the oxidation of primary and secondary alcohols; vicinal 1,2-diols are oxidized selectively to hydroxy ketones, whereas primary alcohols are oxidized in preference to secondary alcohols. Oxidative lactonization of 1,5-diols yields cyclic lactones. Catalyst loadings as low as 0.12 mol % in oxidation reactions on a 10 g scale can be used. The exquisite selectivity of this catalyst system is evident in the chemoselective and stereospecific oxidation of the polyol (S,S)-1,2,3,4-tetrahydroxybutane [(S,S)-threitol] to (S)-erythrulose. Mechanistic, kinetic, and theoretical studies revealed that the rate laws for the oxidation of primary and secondary alcohols differ from those of diols. Density functional theory calculations support the conclusion that β-hydride elimination to give hydroxy ketones is product-determining for the oxidation of vicinal diols, whereas for primary and secondary alcohols, pre-equilibria favoring primary alkoxides are product-determining. In situ desorption electrospray ionization mass spectrometry (DESI-MS) revealed several key intermediates in the proposed catalytic cycle.
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De Crisci AG, Chung K, Oliver AG, Solis-Ibarra D, Waymouth RM. Chemoselective Oxidation of Polyols with Chiral Palladium Catalysts. Organometallics 2013. [DOI: 10.1021/om4001549] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Iwata T, Chung K, Toda M, Hiraoka A, Hagiwara H, Hanada S, Yokota T, Inoue K, Miura T. Malignant esophagobronchial fistula with severe esophageal stenosis, successfully treated by transbronchial occlusion with cyanoacrylate glue. Endoscopy 2013; 44 Suppl 2 UCTN:E317-8. [PMID: 23011999 DOI: 10.1055/s-0032-1309849] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
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Bendikson K, Chung K, Jabara S, Quaas A, Mucowski S, Paulson R. Low-dose HCG Can Complete Follicle Maturity: The Unstimulated IVF Model. Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.01.062] [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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Gualtieri M, Lee F, Stanczyk F, Patel S, Bendikson K, Paulson R, Chung K. Does the Use of Tamoxifen during Controlled Ovarian Hyperstimulation Alter Estrogen Metabolism Favoring a Protective Effect On Breast Cancer Risk? Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.01.068] [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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Burks H, Opper N, Khetan V, Schapiro L, Paulson R, Bendikson K, Chung K. The Relationship between Body Mass Index and Quantitative Serum HCG Levels Following HCG Trigger in In Vitro Fertilization Cycles. Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.01.008] [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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Vadhan-Raj S, von Moos R, Fallowfield LJ, Patrick DL, Goldwasser F, Cleeland CS, Henry DH, Novello S, Hungria V, Qian Y, Feng A, Yeh H, Chung K. Clinical benefit in patients with metastatic bone disease: results of a phase 3 study of denosumab versus zoledronic acid. Ann Oncol 2012; 23:3045-3051. [PMID: 22851406 DOI: 10.1093/annonc/mds175] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/06/2023] Open
Abstract
BACKGROUND Patients with metastatic bone disease are living longer in the metastatic stage due to improvements in cancer therapy, making strategies to prevent the aggravation of bone disease and its complications, such as skeletal-related events (SREs) and pain, increasingly important. PATIENTS AND RESULTS In this phase 3 trial in patients with advanced cancer (excluding breast and prostate cancer) or multiple myeloma, denosumab reduced the risk of radiation to bone by 22% relative to zoledronic acid (P = 0.026), prevented worsening of pain and pain interference (2-point increase in Brief Pain Inventory score; P < 0.05 versus zoledronic acid), and reduced the frequency of a shift from no/weak opioid analgesic use to strong opioids (P < 0.05 versus zoledronic acid at months 3-5). Denosumab delayed the time to moderate-to-severe pain compared with zoledronic acid in patients with mild or no pain at the baseline (P = 0.04), supporting early treatment. Health-related quality-of-life scores were similar in both groups. The number needed to treat to avoid one SRE for denosumab was 3 patient-years versus placebo and 10 patient-years versus zoledronic acid. CONCLUSION The use of denosumab was associated with better prevention of the complications of metastatic bone disease secondary to solid tumors or multiple myeloma versus zoledronic acid.
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