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356 results on '"Cummings, F."'

11. Stimulated Emission of Radiation in a Single Mode for both Resonance and Non-resonance for Various Initial Photon Distributions

Author

Tavis, M. T. and Cummings, F. W.

Subjects
Quantum Physics
Abstract

This paper reexamines the results of Cummings in which the quantum mechanical two-level-system (TLS) interacts with the electromagnetic field with various initial distributions and extends that work for both resonant and non-resonant to times large enough to display multiple photon echoes. The results presented here include the initial pure coherent state, the field whose initial density matrix is the Gaussian superposition of coherent states (blackbody radiation) and density matrices of the field represented by various combinations of mixed coherent and thermal states with and without squeezing This paper provides, in addition to the matrix elements to the various states, both the algebraic and graphical representation for the first order correlation function G= for resonance and non-resonance. It is found that in all case, the application of non-resonance leads to oscillations in the first order correlation which was thought only to apply for the coherent state even for the case of the pure thermal state., Comment: 26 pages, 14 tables many of which contain multiple figures or equations

Published
2012

14. Phyllotaxis, a model

Author

Cummings, F. W.

Subjects
Quantitative Biology - Tissues and Organs, Quantitative Biology - Cell Behavior
Abstract

A model of the regular arrangement of leaves on a plant stem (phyllotactic patterns) is proposed, based on a new plant pattern algorithm. Tripartite patterning is proposed to occur by the interaction of two signaling pathways. Each pathway produces stimulated extracellular emission of like ligand upon activation of its respective receptor, as well as inhibiting such emission from the other pathway. Patterns arise spontaneously from zero density of activated receptor. All known phyllotactic patterns are reproduced, Fibonacci, distichous, decussate, and whorls, as well as the rare monostichy, with only one leaf directly above the previous., Comment: 11 pages, two figures, one table

Published
2009

16. Quantum Entangled Supercorrelated States in the Jaynes-Cummings Model

Author

Rajagopal, A. K., Jensen, K. L, and Cummings, F. W.

Subjects
Quantum Physics, Condensed Matter - Statistical Mechanics
Abstract

The regions of independent quantum states, maximally classically correlated states, and purely quantum entangled (supercorrelated) states described in a recent formulation of quantum information theory by Cerf and Adami are explored here numerically in the parameter space of the well-known exactly soluable Jaynes-Cummings model for equilibrium and nonequilibrium time-dependent ensembles., Comment: 12 pages, 3 figures

Published
1999
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28. OC-001 anti-TNF Withdrawal in IBD: Initial Results from a Pan-UK Study

Author

Kennedy, NA, Warner, B, Johnston, E, Basquill, C, Harris, R, Lamb, CA, Singh, A, Fadra, AS, Cameron, F, Basavaraju, U, Mason, J, Lithgo, K, Penez, L, Stansfield, C, Lal, S, Cummings, F, Hart, A, Johnson, M, Russell, R, Wilson, D, Gooding, I, Thomson, J, Gaya, D, Lindsay, J, Ahmad, T, Mansfield, J, Gordon, J, Satsangi, J, Irving, P, and Lees, CW

Published
2014
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29. O18 IBD care in 2020: results from the first IBD UK patient and service benchmarking tool

Author

Kapasi, R, primary, Glatter, J, additional, Winsor, G, additional, Parekh, AH, additional, Bassil, S, additional, Clifford, J, additional, Berry, S, additional, Ainley, R, additional, Andrews, C, additional, Bell, G, additional, Bhatnagar, G, additional, Blackwell, J, additional, Bloom, S, additional, Bramwell, C, additional, Brookes, M, additional, Brown, SR, additional, Burch, N, additional, Burman, A, additional, Crook, K, additional, Cummings, F, additional, Dobson, L, additional, Epstein, J, additional, Faiz, O, additional, Feakins, R, additional, Fletcher, M, additional, Garrick, V, additional, Hayee, B, additional, Keetarut, K, additional, Meade, U, additional, Muhammed, R, additional, Murdock, A, additional, Posford, N, additional, Rowse, G, additional, Sagar, P, additional, Segal, J, additional, Selinger, C, additional, St Clair-Jones, A, additional, Taylor, SA, additional, Weaver, S, additional, Younge, L, additional, Barrett, K, additional, Arnott, Ian, additional, Hawthorne, AB, additional, and Lamb, CA, additional

Published
2021
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35. Ustekinumab as Induction and Maintenance Therapy for Ulcerative Colitis

Author

Sands, B. E., Sandborn, W. J., Panaccione, R., O'Brien, C. D., Zhang, H., Johanns, J., Adedokun, O. J., Li, K., Peyrin-Biroulet, L., Van Assche, G., Danese, S., Targan, S., Abreu, M. T., Hisamatsu, T., Szapary, P., Brown S, Marano C., Connor, S, De Cruz, P, Ding, Nj, Florin, T, Hendy, P, Leong, R, Moore, G, Pavli, P, Sparrow, M, Gassner, S, Vogelsang, H, Baert, F, Colard, A, De Vos, M, D'Heygere, F, Ferrante, M, Louis, E, Staessen, D, Berova, T, Churchev, J, Draganova, R, Gancheva, D, Ivanova, N, Marinova, I, Markov, M, Nikolov, R, Tsonev, N, Vassileva, G, Afif, W, Berstein, C, Bressler, B, Jairath, V, Lachance, Jr, Singh, R, Tilbe, K, Komarek, V, Kozeluhova, J, Lukas, M, Volfova, M, Dahlerup, J, Altwegg, R, Beorchia, S, Bouguen, G, Cadiot, G, Dupas, Jl, Desreumaux, P, Flourie, B, Grimaud, Jc, Guillaud, O, Moreau, J, Roblin, X, Zerbib, F, Baumgart, D, Beckebaum, S, Bokemeyer, B, Ebert, M, Hasselblatt, P, Lügering, A, Maaser, C, Schiefke, I, Schreiber, S, Seidler, U, Altorjay, I, Kiss, Gg, Literati-Nagy, B, Patai, A, Pecsi, G, Salamon, A, Schnabel, R, Székely, A, Tulassay, Z, Varga, M, Fich, A, Fishman, S, Konikoff, F, Lichtenstein, L, Rainis, T, Sbeit, W, Schwartz, D, Annese, V, Biancone, L, Bossa, F, Costintino, R, Danese, S, Fries, W, Gasbarrini, A, Guidi, L, Kohn, A, Maconi, G, Rocca, R, Rogai, F, Villa, E, Zoli, G, Akiho, H, Aoyama, N, Arisawa, T, Hidaka, H, Hisamatsu, T, Horiki, N, Inaba, T, Inoue, S, Ishida, T, Ishida, H, Ishiguro, Y, Ishihara, S, Iwabuchi, M, Kato, J, Katsushima, S, Kobayashi, T, Kojima, Y, Kurihara, H, Masuo, T, Matsui, T, Matsumoto, T, Matsuoka, K, Mitsuyama, K, Motoya, S, Nakagawa, T, Nakai, K, Nakamura, S, Niihara, T, Ohnishi, Y, Ohta, A, Osada, T, Ryuichi, I, Sakai, Y, Sakata, Y, Sameshima, Y, Sano, K, Shibatoge, M, Shibuya, T, Suzuki, Y, Takeshima, F, Tanaka, S, Taruishi, M, Tokito, S, Ueo, T, Watanabe, K, Yamagami, H, Cheon, Jh, Cho, Kb, Knowles, Kim, Kim, Hj, Kim, Y, Lee, Km, Yang, Sk, D'Haens, G, Pierik, M, Gearry, R, Inns, S, Rowbotham, D, Schultz, M, Bochenek, A, Gawdis-Wojnarska, B, Kleczkowski, D, Leszczyszyn, J, Malecka-Panas, E, Mamos, A, Petryka, R, Regula, J, Rozciecha, J, Stefanuik, P, Wozniak-Stolarska, B, Cimpoeru, N, Craciun, E, Ovidiu, Cf, Goldis, E, Ionita-Radu, F, Lazar, D, Suciu, I, Abdulkhakov, R, Alikhanov, B, Apartsin, K, Bakulin, I, Belousova, E, Gofman, A, Grinevich, V, Kulyapin, A, Nizov, A, Osipenko, M, Simanenkov, V, Tkachev, A, Uspenskiy, Y, Valuyskikh, E, Jovanovic, I, Nagorni, A, Svorcan, P, Zdravkovic, N, Bunganic, I, Abrahamovych, O, Bilianskyi, L, Datsenko, O, Golovchenko, O, Kharchenko, N, Klymenko, V, Levchenko, O, Lozynskyy, Y, Murenets, N, Oliinyk, O, Prystupa, L, Pyrogovskyi, V, Reznikova, V, Rishko, I, Stanislavchuk, M, Vizir, V, Yatsyshyn, R, Arasaradnam, R, Bloom, S, Cummings, F, Iqbal, T, Irving, P, Kaser, A, Shonde, A, Subramanian, S, Aberra, F, Aguilar, H, Araya, V, Bakken, A, Beaulieu, D, Cappa, Ja, Chiorean, M, Cohen, N, Dryden, G, Duvall, G, Ehrlich, A, Eisner, M, Ertan, A, Fogel, R, Friedenberg, K, Gatof, D, Glover, S, Grosman, I, Gunaratnam, N, Gupta, N, Haynes, P, Hemaidan, A, Higgins, P, Hou, J, Hudesman, D, Iskandar, H, Jazrawi, S, Jones, M, Karnam, U, Khurana, S, Killpack, M, Kreines, M, Lawlor, G, Lee, S, Loftus, E, Lukin, Dj, Marcet, J, Mattar, M, Melmed, G, Minor, T, Mirkin, K, Mutlu, E, Nichols, M, Nudell, J, Rai, R, Ramos, C, Mcleod, Randall, Rausher, D, Ritter, T, Singh Saini, S, Salzberg, B, Saubermann, L, Scherl, E, Sedghi, S, Sellin, J, Shafran, I, Sorrentino, D, Suiter, D, Swaminath, A, Tiongco, F, Vrabie, R, Walp, K, Warner, N, Winstead, N, Wolf, Dc, Woods, J, Yen, E, Younes, Z., Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Nutrition-Génétique et Exposition aux Risques Environnementaux (NGERE), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Humanitas Clinical and Research Center [Rozzano, Milan, Italy], RS: NUTRIM - R2 - Liver and digestive health, MUMC+: MA Maag Darm Lever (9), Interne Geneeskunde, Sands, Be, Sandborn, Wj, Panaccione, R, O'Brien, Cd, Zhang, H, Johanns, J, Adedokun, Oj, Li, K, Peyrin-Biroulet, L, Van Assche, G, Danese, S, Targan, S, Abreu, Mt, Hisamatsu, T, Szapary, P, and Marano, C

Subjects
Adult, Male, Infusions, [SDV]Life Sciences [q-bio], Injections, Subcutaneous, Anti-Inflammatory Agents, Ulcerative, Klinikai orvostudományok, Article, Injections, Maintenance Chemotherapy, Dose-Response Relationship, 03 medical and health sciences, 0302 clinical medicine, Double-Blind Method, INFLIXIMAB, Colitis, Ulcerative, Dose-Response Relationship, Drug, Female, Humans, Induction Chemotherapy, Infusions, Intravenous, Patient Acuity, Remission Induction, Ustekinumab, ComputingMilieux_MISCELLANEOUS, ACTIVITY INDEXES, Subcutaneous, Orvostudományok, General Medicine, EFFICACY, Colitis, 3. Good health, INFECTIONS, 030220 oncology & carcinogenesis, 030211 gastroenterology & hepatology, Drug, Intravenous
Abstract

The efficacy of ustekinumab, an antagonist of the p40 subunit of interleukin-12 and interleukin-23, as induction and maintenance therapy in patients with ulcerative colitis is unknown.We evaluated ustekinumab as 8-week induction therapy and 44-week maintenance therapy in patients with moderate-to-severe ulcerative colitis. A total of 961 patients were randomly assigned to receive an intravenous induction dose of ustekinumab (either 130 mg [320 patients] or a weight-range-based dose that approximated 6 mg per kilogram of body weight [322]) or placebo (319). Patients who had a response to induction therapy 8 weeks after administration of intravenous ustekinumab were randomly assigned again to receive subcutaneous maintenance injections of 90 mg of ustekinumab (either every 12 weeks [172 patients] or every 8 weeks [176]) or placebo (175). The primary end point in the induction trial (week 8) and the maintenance trial (week 44) was clinical remission (defined as a total score of ≤2 on the Mayo scale [range, 0 to 12, with higher scores indicating more severe disease] and no subscore1 [range, 0 to 3] on any of the four Mayo scale components).The percentage of patients who had clinical remission at week 8 among patients who received intravenous ustekinumab at a dose of 130 mg (15.6%) or 6 mg per kilogram (15.5%) was significantly higher than that among patients who received placebo (5.3%) (P0.001 for both comparisons). Among patients who had a response to induction therapy with ustekinumab and underwent a second randomization, the percentage of patients who had clinical remission at week 44 was significantly higher among patients assigned to 90 mg of subcutaneous ustekinumab every 12 weeks (38.4%) or every 8 weeks (43.8%) than among those assigned to placebo (24.0%) (P = 0.002 and P0.001, respectively). The incidence of serious adverse events with ustekinumab was similar to that with placebo. Through 52 weeks of exposure, there were two deaths (one each from acute respiratory distress syndrome and hemorrhage from esophageal varices) and seven cases of cancer (one each of prostate, colon, renal papillary, and rectal cancer and three nonmelanoma skin cancers) among 825 patients who received ustekinumab and no deaths and one case of cancer (testicular cancer) among 319 patients who received placebo.Ustekinumab was more effective than placebo for inducing and maintaining remission in patients with moderate-to-severe ulcerative colitis. (Funded by Janssen Research and Development; UNIFI ClinicalTrials.gov number, NCT02407236.).

Published
2019

36. Golimumab induction and maintenance for moderate to severe ulcerative colitis: results from GO-COLITIS (Golimumab: a Phase 4, UK, open label, single arm study on its utilization and impact in ulcerative Colitis)

Author

Probert, CSJ, Sebastian, S, Gaya, DR, Hamlin, PJ, Gillespie, G, Rose, A, Tate, H, Wheeler, C, Irving, PM, Probert, C, Gaya, D, Hart, A, Irving, P, Ahmad, T, Pollok, R, Orchard, T, Arasaradnam, R, Iqbal, T, Johnson, M, Kaser, A, Allen, P, Gordon, J, Preston, C, Shenderey, R, Hoque, S, Bloom, S, Ansari, A, Mowat, C, Hamlin, J, Arnott, I, Shaw, I, Steed, H, Butterworth, J, Robinson, A, Mawdsley, J, Creed, T, Cummings, F, and GO-COLITIS Study Grp

Abstract

Objective GO-COLITIS aimed to measure the effectiveness of subcutaneous golimumab in tumour necrosis factor-α antagonist–naive patients with moderate to severe ulcerative colitis (UC) despite conventional treatment.\ud \ud Design GO-COLITIS was an open label, single arm, phase 4 study with a pragmatic design which reflected UK clinical practice. Adult patients were eligible if diagnosed with UC ≥3 months, partial Mayo score (PMS) 4–9. Patients received subcutaneous golimumab induction (200 mg initially and 100 mg at week 2) followed at week 6 by 50 mg or 100 mg (depending on weight) every 4 weeks until week 54 with a 12-week follow-up. Efficacy was measured by PMS at baseline, week 6, 30, 54 and 66. Health-related quality of life (HRQoL; Inflammatory Bowel Disease Questionnaire (IBDQ) and EuroQol Group 5 Dimensions Health Questionnaire (EQ-5D)) was assessed at baseline, week 6 and week 54. All safety adverse events (AEs) were recorded.\ud \ud Results 207 patients were enrolled and 205 received golimumab (full analysis set (FAS)205). At week 6, 68.8% (95% CI 62.0% to 75.1%) and 38.5% (95% CI 31.8% to 45.6%) of patients were in response and remission, respectively, using PMS. At the end of the induction phase, 140/141 patients in clinical response continued into the maintenance phase (Maintenance FAS). Sustained clinical response through week 54 was achieved in 51/205 (24.9%) of the FAS205 population and 51/140 (36.4%) of the Maintenance FAS population. Statistically significant improvements from baseline to week 6 were observed for the IBDQ total score and for each IBDQ domain score (bowel symptoms, emotional function, systemic symptoms and social function), as well as the EQ-5D index score and associated visual analogue scale score (p

Published
2018

37. That giant sucking sound: the consequences of short-sighted rate making

Author

Cummings, F. Jay

Subjects
Gas utilities -- Prices and rates, Gas utilities -- Services, Gas utilities -- Customer relations, Company pricing policy, Business, Petroleum, energy and mining industries, Telecommunications industry
Abstract

Natural gas local distribution companies (LDCs) charge customers for delivery service through what are commonly referred to as base rates. (1) An LDC's base rates are set by its state [...]

Published
2005

41. Mercaptopurine versus placebo to prevent recurrence of Crohn's disease after surgical resection (TOPPIC): a multicentre, double-blind, randomised controlled trial

Author

Mowat, C, Arnott, I, Cahill, A, Smith, M, Ahmad, T, Subramanian, S, Travis, S, Morris, J, Hamlin, J, Dhar, A, Nwokolo, C, Edwards, C, Creed, T, Bloom, S, Yousif, M, Thomas, L, Campbell, S, Lewis, SJ, Sebastian, S, Sen, S, Lal, S, Hawkey, C, Murray, C, Cummings, F, Goh, J, Lindsay, JO, Arebi, N, Potts, L, McKinley, AJ, Thomson, JM, Todd, JA, Collie, M, Dunlop, MG, Mowat, A, Gaya, DR, Winter, J, Naismith, GD, Ennis, H, Keerie, C, Lewis, S, Prescott, RJ, Kennedy, NA, Satsangi, J, and TOPPIC Study Group

Abstract

BACKGROUND: Up to 60% of patients with Crohn's disease need intestinal resection within the first 10 years of diagnosis, and postoperative recurrence is common. We investigated whether mercaptopurine can prevent or delay postoperative clinical recurrence of Crohn's disease. METHODS: We did a randomised, placebo-controlled, double-blind trial at 29 UK secondary and tertiary hospitals of patients (aged >16 years in Scotland or >18 years in England and Wales) who had a confirmed diagnosis of Crohn's disease and had undergone intestinal resection. Patients were randomly assigned (1:1) by a computer-generated web-based randomisation system to oral daily mercaptopurine at a dose of 1 mg/kg bodyweight rounded to the nearest 25 mg or placebo; patients with low thiopurine methyltransferase activity received half the normal dose. Patients and their carers and physicians were masked to the treatment allocation. Patients were followed up for 3 years. The primary endpoint was clinical recurrence of Crohn's disease (Crohn's Disease Activity Index >150 plus 100-point increase in score) and the need for anti-inflammatory rescue treatment or primary surgical intervention. Primary and safety analyses were by intention to treat. Subgroup analyses by smoking status, previous thiopurines, previous infliximab or methotrexate, previous surgery, duration of disease, or age at diagnosis were also done. This trial is registered with the International Standard Randomised Controlled Trial Register (ISRCTN89489788) and the European Clinical Trials Database (EudraCT number 2006-005800-15). FINDINGS: Between June 6, 2008, and April 23, 2012, 240 patients with Crohn's disease were randomly assigned: 128 to mercaptopurine and 112 to placebo. All patients received at least one dose of study drug, and no randomly assigned patients were excluded from the analysis. 16 (13%) of patients in the mercaptopurine group versus 26 (23%) patients in the placebo group had a clinical recurrence of Crohn's disease and needed anti-inflammatory rescue treatment or primary surgical intervention (adjusted hazard ratio [HR] 0·54, 95% CI 0·27-1·06; p=0·07; unadjusted HR 0·53, 95% CI 0·28-0·99; p=0·046). In a subgroup analysis, three (10%) of 29 smokers in the mercaptopurine group and 12 (46%) of 26 in the placebo group had a clinical recurrence that needed treatment (HR 0·13, 95% CI 0·04-0·46), compared with 13 (13%) of 99 non-smokers in the mercaptopurine group and 14 (16%) of 86 in the placebo group (0·90, 0·42-1·94; pinteraction=0·018). The effect of mercaptopurine did not significantly differ from placebo for any of the other planned subgroup analyses (previous thiopurines, previous infliximab or methotrexate, previous surgery, duration of disease, or age at diagnosis). The incidence and types of adverse events were similar in the mercaptopurine and placebo groups. One patient on placebo died of ischaemic heart disease. Adverse events caused discontinuation of treatment in 39 (30%) of 128 patients in the mercaptopurine group versus 41 (37%) of 112 in the placebo group. INTERPRETATION: Mercaptopurine is effective in preventing postoperative clinical recurrence of Crohn's disease, but only in patients who are smokers. Thus, in smokers, thiopurine treatment seems to be justified in the postoperative period, although smoking cessation should be strongly encouraged given that smoking increases the risk of recurrence.

Published
2017

46. Ustekinumab as induction and maintenance therapy for Crohn's disease

Author

Feagan, Bg, Sandborn, Wj, Gasink, C, Jacobstein, D, Lang, Y, Friedman, Jr, Blank, Ma, Johanns, J, Gao, Ll, Miao, Y, Adedokun, Oj, Sands, Be, Hanauer, Sb, Vermeire, S, Targan, S, Ghosh, S, de Villiers WJ, Colombel, Jf, Tulassay, Z, Seidler, U, Salzberg, Ba, Desreumaux, P, Lee, Sd, Loftus EV Jr, Dieleman, La, Katz, S, Rutgeerts, P, Bampton, P, Chung, A, Connor, S, Debinski, H, Leong, R, Macrae, F, Pavli, P, Sorrentino, D, van den Bogaerde, J, Vogel, W, Vogelsang, H, Louis, E, Mana, F, Zaltman, C, Aumais, G, Bernstein, C, Bressler, B, Dhalla, S, Dieleman, L, Feagan, B, Marshall, J, Panaccione, R, Ropeleski, M, Stehlik, J, Volfova, M, Brynskov, J, Glerup, H, Abitbol-Selinger, V, Allez, M, Beaugerie, L, Bourreille, A, Cadiot, G, Dupas, J, Grimaud, J, Laharie, D, Lerebours, E, Moreau, J, Baumgart, D, Brand, S, Ebert, M, Ehehalt, R, Hasselblatt, P, Howaldt, S, Klaus, J, Krummenerl, P, Kucharzik, T, Lügering, A, Mudter, J, Preiss, J, Schreiber, S, Stallmach, A, Stein, J, Strauch, U, Salamon, A, Patchett, S, Lahat-Zok, A, Rachmilewitz, D, Annese, V, Bossa, F, Guidi, L, Kohn, A, Rocca, R, Ando, A, Ashida, T, Hanai, H, Ishida, T, Ito, H, Matsumoto, T, Motoya, S, Nakamura, S, Sameshima, Y, Suzuki, Y, Watanabe, K, Yamagami, H, Yamamoto, T, Yao, K, Kim, H, Kim, Y, D'Haens, G, Pierik, M, van Bodegraven, A, van der Woude CJ, Gearry, R, Ciecko-Michalska, I, Malecka-Panas, E, Jojic, N, Aboo, N, Wright, J, Arranz, M, Viso, L, Ahmad, T, Bloom, S, Campbell, S, Creed, T, Cummings, F, Hawthorne, B, Iqbal, T, Ireland, A, Parkes, M, Pollok, R, Shaw, I, Shonde, A, Smith, M, Steel, A, Subramanian, S, Travis, S, Tremelling, M, Aberra, F, Abraham, B, Barish, C, Behm, B, Birbara, C, Bochner, R, Bologna, S, Brant, S, Charles, R, Cohen, N, de Villers, W, Dryden, G, Duvall, A, Flasar, M, Fleisher, M, Florez, D, Fogel, R, Gagneja, H, Gross, C, Hamilton, J, Hanauer, S, Hanson, J, Hardi, R, Higgins, P, Isaacs, K, Katz, J, Kaur, N, Khan, N, Lee, S, Leman, B, Levenson, S, Lichtiger, S, Loftus, E, Malik, P, Mcnair, A, Melmed, G, Miner, P, Nichols, M, Noar, M, Oikonomou, I, Oubre, B, Peterson, K, Pruitt, R, Quirk, D, Safdi, A, Safdi, M, Salzberg, B, Sandborn, W, Saubermann, L, Scherl, E, Schwartz, D, Schwarz, R, Sedghi, S, Selby, L, Shafran, I, Siegel, C, Sninsky, C, Stern, M, Stockwell, D, Stone, C, Swaminath, A, Swoger, J, Taormina, M, Williams, E, Winstead, N, Wolf, D, Wolosin, J, Yacyshyn, B, Yajnik, V, Yen, E, Hetzel, D, Muls, V, Bafutto, M, Francesconi, C, Sipahi, A, Steinwurz, F, Churchev, J, Kotzev, I, Marinova, I, Penchev, P, Spassova, Z, Stoinov, S, Takov, D, Vassileva, G, Fowler, S, Greenberg, G, Jones, J, Saibil, F, Salh, B, Banić, M, Duvnjak, M, Stimac, D, Goujon, G, Pelletier, A, Peyrin-Biroulet, L, Aldinger, V, Bokemeyer, B, Büning, C, Konturek, J, Krummenerl, T, Ochsenkuehn, T, Altorjay, I, Kis, J, Pecsi, G, Székely, A, Varga, M, Vincze, A, Wacha, J, Oddsson, E, Orvar, K, Avni-Biron, I, Fishman, S, Fraser, G, Konikoff, F, Melzer, E, Oren, R, Shirin, H, Danese, S, Marino, M, Sturniolo, Gc, Horiki, N, Iijima, H, Iwabuchi, M, Kanai, T, Kunisaki, R, Maemoto, A, Matsuoka, K, Osada, T, Sugimoto, K, Tanaka, S, Cheon, Jh, Han, Ds, Jang, Bi, Kim, Hj, Kim, Js, Kim, Yh, Park, Sj, Yang, Sk, Arnold, M, Claydon, A, Haines, M, Hill, J, Rowbotham, D, Schultz, M, Wallace, I, Bochenek, A, Niezgoda, K, Szura, M, Arutyunov, G, Baranovsky, A, Khalif, I, Osipenko, M, Milinic, N, Bloch, H, Kruger, Fc, Prins, M, Watermeyer, G, Ziady, C, Calvo, Xc, Domínguez-Muñoz, Je, Gisbert, Jp, Arsenescu, R, Beaulieu, D, Bedford, R, Behrend, C, Cleavinger, P, Cohen, J, Ertan, A, Freilich, B, Friedenberg, K, Glover, S, Gordon, G, Gunaratnam, N, Gupta, N, Holbrook, R, Jones, M, Kaufman, B, Khan, Nh, Khurana, S, Legnani, P, Mutlu, E, Phillips, R, Rai, R, Reichelderfer, M, Ritter, T, Safdi, Ma, Sands, B, Schulman, M, Smith, J, Suiter, D, Taylor, D, Vasudeva, R, Winstead, T, Zwick, A, Savoye, G, Atreya, R, Ochsenkuhn, T, Ott, C, Goldin, E, Motohiro, E, Takanori, K, Park, S, James, B, Cummings, J, Tariq, A, Willert, R, Allan, M, Bulat, R, Devilliers, W, Eaker, E, Hou, J, Mendu, S, Nicols, M, Proctor, D, Thosani, N, Zhang, C, and UNITI-IM-UNITI Study Group

Subjects
030203 arthritis & rheumatology, Adult, Male, Infusions, Medicine (all), Remission Induction, Crohn Disease, Female, Humans, Induction Chemotherapy, Infusions, Intravenous, Maintenance Chemotherapy, Middle Aged, Ustekinumab, General Medicine, Orvostudományok, Klinikai orvostudományok, 030207 dermatology & venereal diseases, 03 medical and health sciences, 0302 clinical medicine, Intravenous
Abstract

Ustekinumab, a monoclonal antibody to the p40 subunit of interleukin-12 and interleukin-23, was evaluated as an intravenous induction therapy in two populations with moderately to severely active Crohn's disease. Ustekinumab was also evaluated as subcutaneous maintenance therapy.We randomly assigned patients to receive a single intravenous dose of ustekinumab (either 130 mg or approximately 6 mg per kilogram of body weight) or placebo in two induction trials. The UNITI-1 trial included 741 patients who met the criteria for primary or secondary nonresponse to tumor necrosis factor (TNF) antagonists or had unacceptable side effects. The UNITI-2 trial included 628 patients in whom conventional therapy failed or unacceptable side effects occurred. Patients who completed these induction trials then participated in IM-UNITI, in which the 397 patients who had a response to ustekinumab were randomly assigned to receive subcutaneous maintenance injections of 90 mg of ustekinumab (either every 8 weeks or every 12 weeks) or placebo. The primary end point for the induction trials was a clinical response at week 6 (defined as a decrease from baseline in the Crohn's Disease Activity Index [CDAI] score of ≥100 points or a CDAI score150). The primary end point for the maintenance trial was remission at week 44 (CDAI score150).The rates of response at week 6 among patients receiving intravenous ustekinumab at a dose of either 130 mg or approximately 6 mg per kilogram were significantly higher than the rates among patients receiving placebo (in UNITI-1, 34.3%, 33.7%, and 21.5%, respectively, with P≤0.003 for both comparisons with placebo; in UNITI-2, 51.7%, 55.5%, and 28.7%, respectively, with P0.001 for both doses). In the groups receiving maintenance doses of ustekinumab every 8 weeks or every 12 weeks, 53.1% and 48.8%, respectively, were in remission at week 44, as compared with 35.9% of those receiving placebo (P=0.005 and P=0.04, respectively). Within each trial, adverse-event rates were similar among treatment groups.Among patients with moderately to severely active Crohn's disease, those receiving intravenous ustekinumab had a significantly higher rate of response than did those receiving placebo. Subcutaneous ustekinumab maintained remission in patients who had a clinical response to induction therapy. (Funded by Janssen Research and Development; ClinicalTrials.gov numbers, NCT01369329 , NCT01369342 , and NCT01369355 .).

Published
2016

47. Genome-wide and fine-resolution association analysis of malaria in West Africa

Author

Muminatou, Jallow, Yik Ying Teo, Small, Kerrin S., Rockett, Kirk A., Panos, Deloukas, Clark, Taane G., Katja, Kivinen, Bojang, Kalifa A., Conway, David J., Margaret, Pinder, Giorgio, Sirugo, Fatou Sisay Joof, Stanley, Usen, Sarah, Auburn, Bumpstead, Suzannah J., Susana, Campino, Alison, Coffey, Andrew, Dunham, Fry, Andrew E., Angela, Green, Rhian, Gwilliam, Hunt, Sarah E., Michael, Inouye, Jeffreys, Anna E., Alieu, Mendy, Aarno, Palotie, Simon, Potter, Jiannis, Ragoussis, Jane, Rogers, Kate, Rowlands, Elilan, Somaskantharajah, Pamela, Whittaker, Claire, Widden, Peter, Donnelly, Bryan, Howie, Jonathan, Marchini, Andrew, Morris, Miguel, Sanjoaquin, Eric Akum Achidi, Tsiri, Agbenyega, Angela, Allen, Olukemi, Amodu, Patrick, Corran, Abdoulaye, Djimde, Amagana, Dolo, Doumbo, Ogobara K., Chris, Drakeley, Sarah, Dunstan, Jennifer, Evans, Jeremy, Farrar, Hien Tt, Fernando D., Horstmann, R. D., Ibrahim, M., Karunaweera, N., Kokwaro, G., Koram, K. A., Lemnge, M., Makani, J., Marsh, K., Michon, P., David, Modiano, Molyneux, M. E., Mueller, I., Parker, M., Peshu, N., Plowe, C. V., Puijalon, O., Reeder, J., Reyburn, H., Riley, E. M., Sakuntabhai, A., Singhasivanon, P., Sirima, S., Tall, A., Taylor, T. E., Thera, M., Troye Blomberg, M., Williams, T. N., Wilson, M., Wellcome Trust Case Control Consortium Kwiatkowski, D. P., Epidemiology Network: Achidi, Malaria Genomic E. A., Agbenyega, T., Ahmad, T., Alcock, D., Allen, S., Amenga Etego, L., Amodu, O., Apinjoh, T. O., Attwood, A. P., Auburn, S., Ball, S. G., Balmforth, A. J., Ban, M., Barbour, J., Barnwell, D., Barrett, J. C., Barrett, J. H., Barton, A., Bentley, D., Bishop, D. T., Bojang, K., Boorman, J. P., Bougouma, E., Bradbury, L. A., Braga Marcano, C. A., Braund, P. S., Bredin, F., Breen, G., Brown, M. A., Brown, M. J., Bruce, I. N., Bryan, C., Bull, S., Bumpstead, S. J., Burke, B., Burton, P. R., Caesar, S., Campino, S., Cant, B., Cardin, N. J., Cardon, L. R., Carucci, D., Caulfield, M., Chaney, A., Clark, T., Clayton, D. G., Collier, D. A., Compston, A., Compston, D. A., Connell, J., Conway, D., Cook, K., Corran, P., Craddock, N., Cummings, F. R., Davison, D., Deloukas, P., Devries, J., Dewasurendra, R., Diakite, M., Dixon, R. J., Djimde, A., Dobson, R., Dolo, A., Dominiczak, A., Donnelly, P., Donovan, H., Doumbo, O., Downes, K., Doyle, A., Drakeley, C., Drummond, H., Duffy, P., Duncanson, A., Dunger, D. B., Dunstan, S., Duombo, O., Easton, D., Elkin, A., Elliott, K. S., Elzein, A., Enimil, A., Evans, D., Evans, J., Everson, U., Eyre, S., Farmer, A., Farrall, M., Farrar, C., Farrar, J., Fernando, D., Ferreira, T., Ferrier, I. N., Fisher, S. A., Fitzpatrick, K., Forbes, A., Franklyn, J. A., Fraser, C., Frayling, T. M., Freathy, R. M., Ghansah, A., Ghori, J., Gilbert, P. D., Gordon Smith, K., Goris, A., Gottlieb, M., Gough, S. C., Green, A., Green, E. K., Groves, C. J., Grozeva, D., Gungadoo, J., Gwilliam, R., Hall, A. S., Hallgrimsdóttir, I. B., Hamshere, M. L., Hart, L., Hattersley, A. T., Heward, J. M., Hider, S. L., Tran Tinh Hien, Hill, A. V., Hilton, E., Hinks, A. M., Hitman, G. A., Holmans, P. A., Horstmann, Rolf D., Howie, B. N., Hubbart, C., Hughes, C., Hunt, S. E., Hussein, A., Hussey, J. M., Muntaser, Ibrahim, Iles, M. M., Inouye, M., Ishengoma, D., Jallow, M., Jeffreys, A. E., Jewell, D. P., John, Sl, Jolley, J. D., Jones, I. R., Jones, L., Jones, R. W., Nadira, Karunaweera, Keniry, A., King, E., Kirov, G., Kivinen, K., Knight, A. S., Koch, K., Gilbert, Kokwaro, Koram, Kwadwo A., Lango, H., Lathrop, G. M., Lee, K. L., Lees, C. W., Martha, Lemnge, Leung, H. T., Lewis, C. M., Lin, E., Lindgren, C. M., Ly, A., Macinnis, B., Julie, Makani, Mangano, Valentina, Mangino, M., Manjurano, A., Manning, L., Mansfield, J. C., Manske, M., Maqbool, A., Marchini, J. L., Kevin, Marsh, Maslen, G., Mathew, C. G., Mcardle, W. L., Mccarthy, M. I., Mccreight, M., Mcginnis, R., Mcguffin, P., Meech, E., Mendy, A., Pascal, Michon, Mohiuddin, M. K., Molyneux, Malcolm E., Morris, A. P., Moskvina, V., Moyes, C., Ivo, Mueller, Munroe, P. B., Mutabingwa, T., Ndila, C. M., Newhouse, S. J., Newport, M., Nikolov, I., Nimmo, E. R., Nutland, S., Nyirongo, V., O'Donovan, M. C., Oluoch, T., Onipinla, A., Onnie, C. M., Ouwehand, W. H., Owen, M. J., Michael, Parker, Parkes, M., Pembrey, M., Pereira Gale, J., Perry, J. R., Norbert, Peshu, Plowe, Christopher V., Pointon, J. J., Potter, C., Potter, S., Prescott, N. J., Prowse, C. V., Odile, Puijalon, Quyen, N. T., Ragoussis, J., Rahman, N., Ravindrarajah, R., Rayner, N. W., John, Reeder, Hugh, Reyburn, Riley, Eleanor M., Ring, S. M., Risley, P., Rockett, K. A., Rogers, J., Rowlands, K., Anavaj, Sakuntabhai, Samani, N. J., Sanderson, J., Sanjoaquin, M., Satsangi, J., Sawcer, S. J., Seal, S., Shields, B. M., Silman, A. J., Simmonds, M. J., Pratap, Singhasivanon, Sodiomon, Sirima, Sirugo, G., Small, K. S., Somaskantharajah, E., Spencer, C. C., St Clair, D., Stevens, H. E., Stevens, M., Stevens, S., Strachan, D. P., Stratton, M. R., Su, Z., Suriyaphol, P., Symmons, D. P., Adama, Tall, Taylor, N. C., Taylor, Terrie E., Teo, Y., Teo, Y. Y., Mahamadou, Thera, Thompson, J. R., Thomson, W., Timpson, N. J., Tobin, M. D., Todd, J. A., Todhunter, C. E., Toure, O., Tremelling, M., Marita Troye Blomberg, Vanderwal, A., Vukcevic, D., Walker, M., Walker, N. M., Wallace, C., Walters, G. R., Walton, R., Watkins, N. A., Watson, R., Webster, J., Weedon, M. N., Whittaker, P., Widmer, B., Williams, Thomas N., Williamson, R., Michael, Wilson, Winzer, T., Withers, D., Wordsworth, P., Worthington, J., Wrigley, R., Xue, M., Young, A. H., Yuldasheva, N., and Zeggini, E.

Subjects
Linkage disequilibrium, Hemoglobin, Sickle, Population, Genome-wide association study, Locus (genetics), Biology, Population stratification, Polymorphism, Single Nucleotide, Severity of Illness Index, Linkage Disequilibrium, Article, Gene mapping, Reference Values, Ethnicity, Genetics, Humans, education, Genetic association, education.field_of_study, Polymorphism, Genetic, Chromosome Mapping, Genetic Variation, Malaria, Gambia, Imputation (genetics), Genome-Wide Association Study
Abstract

We report a genome-wide association (GWA) study of severe malaria in The Gambia. The initial GWA scan included 2,500 children genotyped on the Affymetrix 500K GeneChip, and a replication study included 3,400 children. We used this to examine the performance of GWA methods in Africa. We found considerable population stratification, and also that signals of association at known malaria resistance loci were greatly attenuated owing to weak linkage disequilibrium (LD). To investigate possible solutions to the problem of low LD, we focused on the HbS locus, sequencing this region of the genome in 62 Gambian individuals and then using these data to conduct multipoint imputation in the GWA samples. This increased the signal of association, from P = 4 × 10(-7) to P = 4 × 10(-14), with the peak of the signal located precisely at the HbS causal variant. Our findings provide proof of principle that fine-resolution multipoint imputation, based on population-specific sequencing data, can substantially boost authentic GWA signals and enable fine mapping of causal variants in African populations.

Published
2009

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