65 results on '"Williams, Alexander T."'
Search Results
52. Corrigendum to: Cohort profile: Extended Cohort for E-health, Environment and DNA (EXCEED)
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John, Catherine, primary, Reeve, Nicola F, additional, Free, Robert C, additional, Williams, Alexander T, additional, Ntalla, Ioanna, additional, Farmaki, Aliki-Eleni, additional, Bethea, Jane, additional, Barton, Linda M, additional, Shrine, Nick, additional, Batini, Chiara, additional, Packer, Richard, additional, Terry, Sarah, additional, Hargadon, Beverley, additional, Wang, Qingning, additional, Melbourne, Carl A, additional, Adams, Emma L, additional, Bee, Catherine E, additional, Harrington, Kyla, additional, Miola, José, additional, Brunskill, Nigel J, additional, Brightling, Christopher E, additional, Barwell, Julian, additional, Wallace, Susan E, additional, Hsu, Ron, additional, Shepherd, David J, additional, Hollox, Edward J, additional, Wain, Louise V, additional, and Tobin, Martin D, additional
- Published
- 2019
- Full Text
- View/download PDF
53. Cohort Profile: Extended Cohort for E-health, Environment and DNA (EXCEED)
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John, Catherine, primary, Reeve, Nicola F, additional, Free, Robert C, additional, Williams, Alexander T, additional, Ntalla, Ioanna, additional, Farmaki, Aliki-Eleni, additional, Bethea, Jane, additional, Barton, Linda M, additional, Shrine, Nick, additional, Batini, Chiara, additional, Packer, Richard, additional, Terry, Sarah, additional, Hargadon, Beverley, additional, Wang, Qingning, additional, Melbourne, Carl A, additional, Adams, Emma L, additional, Bee, Catherine E, additional, Harrington, Kyla, additional, Miola, José, additional, Brunskill, Nigel J, additional, Brightling, Christopher E, additional, Barwell, Julian, additional, Wallace, Susan E, additional, Hsu, Ron, additional, Shepherd, David J, additional, Hollox, Edward J, additional, Wain, Louise V, additional, and Tobin, Martin D, additional
- Published
- 2019
- Full Text
- View/download PDF
54. Prediction of Recovery From Severe Hemorrhagic Shock Using Logistic Regression
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Lucas, Alfredo, primary, Williams, Alexander T., additional, and Cabrales, Pedro, additional
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- 2019
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55. Safety profile of high molecular weight polymerized hemoglobins.
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Muller, Cynthia R., Williams, Alexander T., Munoz, Carlos J., Eaker, Allyn M., Breton, Amanda N., Palmer, Andre F., and Cabrales, Pedro
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MOLECULAR weights , *HEMOGLOBINS , *ERYTHROCYTES , *GUINEA pigs , *BLOOD cells - Abstract
Background: Hemoglobin (Hb)‐based oxygen (O2) carriers (HBOCs) are being developed as alternatives to red blood cells and blood when these products are unavailable. Clinical trials of previous HBOC generations revealed side effects, including hypertension and vasoconstriction, that were not observed in preclinical studies. Large molecular weight (MW) polymerized bovine Hb (PolybHb) represents a new class of HBOC with promising results. We evaluated the safety profile of PolybHb after an exchange transfusion (ET) in guinea pigs (GPs). This study compares changes in indices of cardiac, inflammatory, and organ function after ET with high (R‐state) and low (T‐state) O2 affinity PolybHb with high MW. Study Design and Methods: Guinea pigs underwent a 20% ET with PolybHb. To assess the implication of PolybHb ET on the microcirculation, hamsters instrumented with a dorsal window chamber were subjected to a similar volume ET. Results: T and R‐state PolybHb did not induce significant alterations in cardiac function. T‐state PolybHb induced mild vasoconstriction shortly after transfusion, while R‐state did not have acute effects on microvascular tone. Conclusion: Large MW PolybHbs were found to be safe and efficacious in increasing O2 carrying capacity and the O2 affinity of the PolybHb did not affect O2 delivery or extraction by tissues in relevant preclinical models. In conclusion, these results suggest that both T‐state and R‐state PolybHb are safe and do not impair O2 delivery. The results are encouraging and support further evaluation of high MW PolybHbs and their future feasibility compared to allogenic blood in a trauma model. [ABSTRACT FROM AUTHOR]
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- 2021
- Full Text
- View/download PDF
56. Cohort Profile: Extended Cohort for E-health, Environment and DNA (EXCEED)
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John, Catherine, primary, Reeve, Nicola F, additional, Free, Robert C, additional, Williams, Alexander T, additional, Farmaki, Aliki-Eleni, additional, Bethea, Jane, additional, Barton, Linda M, additional, Shrine, Nick, additional, Batini, Chiara, additional, Packer, Richard, additional, Terry, Sarah, additional, Hargadon, Beverley, additional, Wang, Qingning, additional, Melbourne, Carl A, additional, Adams, Emma L, additional, Bee, Catherine E, additional, Harrington, Kyla, additional, Miola, José, additional, Brunskill, Nigel J, additional, Brightling, Christopher E, additional, Barwell, Julian, additional, Wallace, Susan E, additional, Hsu, Ron, additional, Shepherd, David J, additional, Hollox, Edward J, additional, Wain, Louise V, additional, and Tobin, Martin D, additional
- Published
- 2018
- Full Text
- View/download PDF
57. Blood Quality Diagnostic Device Detects Storage Differences Between Donors
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Jani, Vivek P., primary, Mailo, Shawn, additional, Athar, Ali, additional, Lucas, Alfredo, additional, Williams, Alexander T., additional, and Cabrales, Pedro, additional
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- 2017
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58. Rat red blood cell storage lesions in various additive solutions
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Jani, Vivek P., primary, Yalcin, Ozlem, additional, Williams, Alexander T., additional, Popovsky, Mark A., additional, and Cabrales, Pedro, additional
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- 2017
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59. New Media and the ‘Anchor Baby’ Boom
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Ignatow, Gabe, primary and Williams, Alexander T., additional
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- 2011
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60. The Production of Cultural Boundaries: The Influence of Participatory Journalism on the Immigration Debate in Texas
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Williams, Alexander T., primary
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- 2008
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61. Pharmacological Increase of Hb-O2Affinity with a Voxelotor Analog Does Not Decrease Brain Tissue pO2or Limit O2Extraction in Brain Tissues of Sickle Cell Mice
- Author
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Dufu, Kobina, Lucas, Alfredo, Muller, Cynthia Rodrigues, Williams, Alexander T, Zhang, Xinchun, Rademacher, Peter, Alt, Carsten, Oksenberg, Donna, and Cabrales, Pedro
- Abstract
Sickle Cell Disease (SCD) is characterized by hemolytic anemia, vaso-occlusion, and progressive end-organ damage. The underlying mechanism of SCD is the polymerization of sickle hemoglobin (HbS) that occurs when sickle erythrocytes (SS RBCs) are partially deoxygenated in microcirculation, leading to SCD pathophysiologic features. One of the most devastating complications of SCD occurs in the central nervous system (CNS), where overt stroke or repeated silent cerebral infarcts lead to significant physical and neurocognitive consequences. In SCD, the brain's response to insufficient oxygen (O2) delivery is balanced by increased blood flow to preserve O2supply. However, the systemic endothelial dysfunction in SCD limits the capacity for vascular regulatory and compensatory changes to preserve appropriate tissue oxygenation, especially in tissues with high O2demand like the brain. Low hemoglobin (Hb) levels and increased cerebral blood flow (CBF) are associated with increased stroke risk, suggesting that anemia-induced tissue hypoxia is an important factor contributing to subsequent morbidity in SCD patients.
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- 2019
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62. A first update on mapping the human genetic architecture of COVID-19
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COVID-19 Host Genetics Initiative, Pathak, GA, Karjalainen, J, Stevens, C, Neale, BM, Daly, M, Ganna, A, Andrews, SJ, Kanai, M, Cordioli, M, Polimanti, R, Harerimana, N, Pirinen, M, Liao, RG, Chwialkowska, K, Trankiem, A, Balaconis, MK, Nguyen, H, Solomonson, M, Veerapen, K, Wolford, B, Roberts, G, Park, D, Ball, CA, Coignet, M, McCurdy, S, Knight, S, Partha, R, Rhead, B, Zhang, M, Berkowitz, N, Gaddis, M, Noto, K, Ruiz, L, Pavlovic, M, Hong, EL, Rand, K, Girshick, A, Guturu, H, Baltzell, AH, Niemi, MEK, Rahmouni, S, Guntz, J, Beguin, Y, Pigazzini, S, Nkambule, L, Georges, M, Moutschen, M, Misset, B, Darcis, G, Guiot, J, Azarzar, S, Gofflot, S, Claassen, S, Malaise, O, Huynen, P, Meuris, C, Thys, M, Jacques, J, Leonard, P, Frippiat, F, Giot, J-B, Sauvage, A-S, Frenckell, CV, Belhaj, Y, Lambermont, B, Nakanishi, T, Morrison, DR, Mooser, V, Richards, JB, Butler-Laporte, G, Forgetta, V, Li, R, Ghosh, B, Laurent, L, Belisle, A, Henry, D, Abdullah, T, Adeleye, O, Mamlouk, N, Kimchi, N, Afrasiabi, Z, Rezk, N, Vulesevic, B, Bouab, M, Guzman, C, Petitjean, L, Tselios, C, Xue, X, Afilalo, J, Afilalo, M, Oliveira, M, Brenner, B, Brassard, N, Durand, M, Schurr, E, Lepage, P, Ragoussis, J, Auld, D, Chassé, M, Kaufmann, DE, Lathrop, GM, Adra, D, Hayward, C, Glessner, JT, Shaw, DM, Campbell, A, Morris, M, Hakonarson, H, Porteous, DJ, Below, J, Richmond, A, Chang, X, Polikowski, H, Lauren, PE, Chen, H-H, Wanying, Z, Fawns-Ritchie, C, North, K, McCormick, JB, Glessner, JR, Gignoux, CR, Wicks, SJ, Crooks, K, Barnes, KC, Daya, M, Shortt, J, Rafaels, N, Chavan, S, Timmers, PRHJ, Wilson, JF, Tenesa, A, Kerr, SM, D’Mellow, K, Shahin, D, El-Sherbiny, YM, von Hohenstaufen, KA, Sobh, A, Eltoukhy, MM, Nkambul, L, Elhadidy, TA, Abd Elghafar, MS, El-Jawhari, JJ, Mohamed, AAS, Elnagdy, MH, Samir, A, Abdel-Aziz, M, Khafaga, WT, El-Lawaty, WM, Torky, MS, El-shanshory, MR, Yassen, AM, Hegazy, MAF, Okasha, K, Eid, MA, Moahmed, HS, Medina-Gomez, C, Ikram, MA, Uitterlinden, AG, Mägi, R, Milani, L, Metspalu, A, Laisk, T, Läll, K, Lepamets, M, Esko, T, Reimann, E, Naaber, P, Laane, E, Pesukova, J, Peterson, P, Kisand, K, Tabri, J, Allos, R, Hensen, K, Starkopf, J, Ringmets, I, Tamm, A, Kallaste, A, Alavere, H, Metsalu, K, Puusepp, M, Batini, C, Tobin, MD, Venn, LD, Lee, PH, Shrine, N, Williams, AT, Guyatt, AL, John, C, Packer, RJ, Ali, A, Free, RC, Wang, X, Wain, LV, Hollox, EJ, Bee, CE, Adams, EL, Palotie, A, Ripatti, S, Ruotsalainen, S, Kristiansson, K, Koskelainen, S, Perola, M, Donner, K, Kivinen, K, Kaunisto, M, Rivolta, C, Bochud, P-Y, Bibert, S, Boillat, N, Nussle, SG, Albrich, W, Quinodoz, M, Kamdar, D, Suh, N, Neofytos, D, Erard, V, Voide, C, Friolet, R, Vollenweider, P, Pagani, JL, Oddo, M, zu Bentrup, FM, Conen, A, Clerc, O, Marchetti, O, Guillet, A, Guyat-Jacques, C, Foucras, S, Rime, M, Chassot, J, Jaquet, M, Viollet, RM, Lannepoudenx, Y, Portopena, L, Bochud, PY, Desgranges, F, Filippidis, P, Guéry, B, Haefliger, D, Kampouri, EE, Manuel, O, Munting, A, Papadimitriou-Olivgeris, M, Regina, J, Rochat-Stettler, L, Suttels, V, Tadini, E, Tschopp, J, Van Singer, M, Viala, B, Boillat-Blanco, N, Brahier, T, Hügli, O, Meuwly, JY, Pantet, O, Gonseth Nussle, S, Bochud, M, D’Acremont, V, Estoppey Younes, S, Albrich, WC, Cerny, A, O’Mahony, L, von Mering, C, Frischknecht, M, Kleger, G-R., Filipovic, M, Kahlert, CR, Wozniak, H, Negro, TR, Pugin, J, Bouras, K, Knapp, C, Egger, T, Perret, A, Montillier, P, di Bartolomeo, C, Barda, B, de Cid, R, Carreras, A, Moreno, V, Kogevinas, M, Galván-Femenía, I, Blay, N, Farré, X, Sumoy, L, Cortés, B, Mercader, JM, Guindo-Martinez, M, Torrents, D, Garcia-Aymerich, J, Castaño-Vinyals, G, Dobaño, C, Gori, M, Renieri, A, Mari, F, Mondelli, MU, Castelli, F, Vaghi, M, Rusconi, S, Montagnani, F, Bargagli, E, Franchi, F, Mazzei, MA, Cantarini, L, Tacconi, D, Feri, M, Scala, R, Spargi, G, Nencioni, C, Bandini, M, Caldarelli, GP, Canaccini, A, Ognibene, A, D’Arminio Monforte, A, Girardis, M, Antinori, A, Francisci, D, Schiaroli, E, Scotton, PG, Panese, S, Scaggiante, R, Monica, MD, Capasso, M, Fiorentino, G, Castori, M, Aucella, F, Biagio, AD, Masucci, L, Valente, S, Mandalà, M, Zucchi, P, Giannattasio, F, Coviello, DA, Mussini, C, Tavecchia, L, Crotti, L, Rizzi, M, Rovere, MTL, Sarzi-Braga, S, Bussotti, M, Ravaglia, S, Artuso, R, Perrella, A, Romani, D, Bergomi, P, Catena, E, Vincenti, A, Ferri, C, Grassi, D, Pessina, G, Tumbarello, M, Pietro, MD, Sabrina, R, Luchi, S, Furini, S, Dei, S, Benetti, E, Picchiotti, N, Sanarico, M, Ceri, S, Pinoli, P, Raimondi, F, Biscarini, F, Stella, A, Zguro, K, Capitani, K, Tanfoni, M, Fallerini, C, Daga, S, Baldassarri, M, Fava, F, Frullanti, E, Valentino, F, Doddato, G, Giliberti, A, Tita, R, Amitrano, S, Bruttini, M, Croci, S, Meloni, I, Mencarelli, MA, Rizzo, CL, Pinto, AM, Beligni, G, Tommasi, A, Sarno, LD, Palmieri, M, Carriero, ML, Alaverdian, D, Busani, S, Bruno, R, Vecchia, M, Belli, MA, Mantovani, S, Ludovisi, S, Quiros-Roldan, E, Antoni, MD, Zanella, I, Siano, M, Emiliozzi, A, Fabbiani, M, Rossetti, B, Bergantini, L, D’Alessandro, M, Cameli, P, Bennett, D, Anedda, F, Marcantonio, S, Scolletta, S, Guerrini, S, Conticini, E, Frediani, B, Spertilli, C, Donati, A, Guidelli, L, Corridi, M, Croci, L, Piacentini, P, Desanctis, E, Cappelli, S, Verzuri, A, Anemoli, V, Pancrazzi, A, Lorubbio, M, Miraglia, FG, Venturelli, S, Cossarizza, A, Vergori, A, Gabrieli, A, Riva, A, Paciosi, F, Andretta, F, Gatti, F, Parisi, SG, Baratti, S, Piscopo, C, Russo, R, Andolfo, I, Iolascon, A, Carella, M, Merla, G, Squeo, GM, Raggi, P, Marciano, C, Perna, R, Bassetti, M, Sanguinetti, M, Giorli, A, Salerni, L, Parravicini, P, Menatti, E, Trotta, T, Coiro, G, Lena, F, Martinelli, E, Mancarella, S, Gabbi, C, Maggiolo, F, Ripamonti, D, Bachetti, T, Suardi, C, Parati, G, Bottà, G, Domenico, PD, Rancan, I, Bianchi, F, Colombo, R, Barbieri, C, Acquilini, D, Andreucci, E, Segala, FV, Tiseo, G, Falcone, M, Lista, M, Poscente, M, Vivo, OD, Petrocelli, P, Guarnaccia, A, Baroni, S, van Heel, DA, Hunt, KA, Trembath, RC, Huang, QQ, Martin, HC, Mason, D, Trivedi, B, Wright, J, Finer, S, Akhtar, S, Anwar, M, Arciero, E, Ashraf, S, Breen, G, Chung, R, Curtis, CJ, Chowdhury, M, Colligan, G, Deloukas, P, Durham, C, Griffiths, C, Hurles, M, Hussain, S, Islam, K, Khan, A, Lavery, C, Lee, SH, Lerner, R, MacArthur, D, MacLaughlin, B, Martin, H, Miah, S, Newman, B, Safa, N, Tahmasebi, F, Griffiths, CJ, Smith, AV, Boughton, AP, Li, KW, LeFaive, J, Annis, A, Niavarani, A, Aliannejad, R, Sharififard, B, Amirsavadkouhi, A, Naderpour, Z, Tadi, HA, Aleagha, AE, Ahmadi, S, Moghaddam, SBM, Adamsara, A, Saeedi, M, Abdollahi, H, Hosseini, A, Chariyavilaskul, P, Jantarabenjakul, W, Hirankarn, N, Chamnanphon, M, Suttichet, TB, Shotelersuk, V, Pongpanich, M, Phokaew, C, Chetruengchai, W, Putchareon, O, Torvorapanit, P, Puthanakit, T, Suchartlikitwong, P, Nilaratanakul, V, Sodsai, P, Brumpton, BM, Hveem, K, Willer, C, Zhou, W, Rogne, T, Solligard, E, Åsvold, BO, Franke, L, Boezen, M, Deelen, P, Claringbould, A, Lopera, E, Warmerdam, R, Vonk, JM, van Blokland, I, Lanting, P, Ori, APS, Feng, Y-CA, Mercader, J, Weiss, ST, Karlson, EW, Smoller, JW, Murphy, SN, Meigs, JB, Woolley, AE, Green, RC, Perez, EF, Zöllner, S, Wang, J, Beck, A, Sloofman, LG, Ascolillo, S, Sebra, RP, Collins, BL, Levy, T, Buxbaum, JD, Sealfon, SC, Jordan, DM, Thompson, RC, Gettler, K, Chaudhary, K, Belbin, GM, Preuss, M, Hoggart, C, Choi, S, Underwood, SJ, Salib, I, Britvan, B, Keller, K, Tang, L, Peruggia, M, Hiester, LL, Niblo, K, Aksentijevich, A, Labkowsky, A, Karp, A, Zlatopolsky, M, Zyndorf, M, Charney, AW, Beckmann, ND, Schadt, EE, Abul-Husn, NS, Cho, JH, Itan, Y, Kenny, EE, Loos, RJF, Nadkarni, GN, Do, R, O’Reilly, P, Huckins, LM, Ferreira, MAR, Abecasis, GR, Leader, JB, Cantor, MN, Justice, AE, Carey, DJ, Chittoor, G, Josyula, NS, Kosmicki, JA, Horowitz, JE, Baras, A, Gass, MC, Yadav, A, Mirshahi, T, Hottenga, JJ, Bartels, M, de geus, EEJC, Nivard, MMG, Verma, A, Ritchie, MD, Rader, D, Li, B, Verma, SS, Lucas, A, Bradford, Y, Abedalthagafi, M, Alaamery, M, Alshareef, A, Sawaji, M, Massadeh, S, AlMalik, A, Alqahtani, S, Baraka, D, Harthi, FA, Alsolm, E, Safieh, LA, Alowayn, AM, Alqubaishi, F, Mutairi, AA, Mangul, S, Almutairi, M, Aljawini, N, Albesher, N, Arabi, YM, Mahmoud, ES, Khattab, AK, Halawani, RT, Alahmadey, ZZ, Albakri, JK, Felemban, WA, Suliman, BA, Hasanato, R, Al-Awdah, L, Alghamdi, J, AlZahrani, D, AlJohani, S, Al-Afghani, H, AlDhawi, N, AlBardis, H, Alkwai, S, Alswailm, M, Almalki, F, Albeladi, M, Almohammed, I, Barhoush, E, Albader, A, Alotaibi, S, Alghamdi, B, Jung, J, fawzy, MS, Alrashed, M, Zeberg, H, Frithiof, R, Hultström, M, Lipcsey, M, Tardif, N, Rooyackers, O, Grip, J, Maricic, T, Helgeland, Ø, Magnus, P, Trogstad, L-IS, Lee, Y, Harris, JR, Mangino, M, Spector, TD, Emma, D, Moutsianas, L, Caulfield, MJ, Scott, RH, Kousathanas, A, Pasko, D, Walker, S, Stuckey, A, Odhams, CA, Rhodes, D, Fowler, T, Rendon, A, Chan, G, Arumugam, P, Karczewski, KJ, Martin, AR, Wilson, DJ, Spencer, CCA, Crook, DW, Wyllie, DH, O’Connell, AM, Atkinson, EG, Tsuo, K, Baya, N, Turley, P, Gupta, R, Walters, RK, Palmer, DS, Sarma, G, Cheng, N, Lu, W, Churchhouse, C, Goldstein, JI, King, D, Seed, C, Daly, MJ, Finucane, H, Bryant, S, Satterstrom, FK, Band, G, Earle, SG, Lin, S-K, Arning, N, Koelling, N, Armstrong, J, Rudkin, JK, Callier, S, Cusick, C, Soranzo, N, Zhao, JH, Danesh, J, Angelantonio, ED, Butterworth, AS, Sun, YV, Huffman, JE, Cho, K, O’Donnell, CJ, Tsao, P, Gaziano, JM, Peloso, G, Ho, Y-L, Smieszek, SP, Polymeropoulos, C, Polymeropoulos, V, Polymeropoulos, MH, Przychodzen, BP, Fernandez-Cadenas, I, Planas, AM, Perez-Tur, J, Llucià-Carol, L, Cullell, N, Muiño, E, Cárcel-Márquez, J, DeDiego, ML, Iglesias, LL, Soriano, A, Rico, V, Agüero, D, Bedini, JL, Lozano, F, Domingo, C, Robles, V, Ruiz-Jaén, F, Márquez, L, Gomez, J, Coto, E, Albaiceta, GM, García-Clemente, M, Dalmau, D, Arranz, MJ, Dietl, B, Serra-Llovich, A, Soler, P, Colobrán, R, Martín-Nalda, A, Martínez, AP, Bernardo, D, Rojo, S, Fiz-López, A, Arribas, E, de la Cal-Sabater, P, Segura, T, González-Villa, E, Serrano-Heras, G, Martí-Fàbregas, J, Jiménez-Xarrié, E, de Felipe Mimbrera, A, Masjuan, J, García-Madrona, S, Domínguez-Mayoral, A, Villalonga, JM, Menéndez-Valladares, P, Chasman, DI, Sesso, HD, Manson, JE, Buring, JE, Ridker, PM, Franco, G, Davis, L, Lee, S, Priest, J, Sankaran, VG, van Heel, D, Biesecker, L, Kerchberger, VE, Baillie, JK, Pathak, Gita A., Karjalainen, Juha, Stevens, Christine, Neale, Benjamin M., Daly, Mark, Ganna, Andrea, Andrews, Shea J., Kanai, Masahiro, Cordioli, Mattia, Polimanti, Renato, Harerimana, Nadia, Pirinen, Matti, Liao, Rachel G., Chwialkowska, Karolina, Trankiem, Amy, Balaconis, Mary K., Nguyen, Huy, Solomonson, Matthew, Veerapen, Kumar, Wolford, Brooke, Roberts, Genevieve, Park, Danny, Ball, Catherine A., Coignet, Marie, McCurdy, Shannon, Knight, Spencer, Partha, Raghavendran, Rhead, Brooke, Zhang, Miao, Berkowitz, Nathan, Gaddis, Michael, Noto, Keith, Ruiz, Luong, Pavlovic, Milo, Hong, Eurie L., Rand, Kristin, Girshick, Ahna, Guturu, Harendra, Baltzell, Asher Haug, Niemi, Mari E. K., Rahmouni, Souad, Guntz, Julien, Beguin, Yve, Pigazzini, Sara, Nkambule, Lindokuhle, Georges, Michel, Moutschen, Michel, Misset, Benoit, Darcis, Gille, Guiot, Julien, Azarzar, Samira, Gofflot, Stéphanie, Claassen, Sabine, Malaise, Olivier, Huynen, Pascale, Meuris, Christelle, Thys, Marie, Jacques, Jessica, Léonard, Philippe, Frippiat, Frederic, Giot, Jean-Baptiste, Sauvage, Anne-Sophie, Frenckell, Christian Von, Belhaj, Yasmine, Lambermont, Bernard, Nakanishi, Tomoko, Morrison, David R., Mooser, Vincent, Richards, J. Brent, Butler-Laporte, Guillaume, Forgetta, Vincenzo, Li, Rui, Ghosh, Biswarup, Laurent, Laetitia, Belisle, Alexandre, Henry, Danielle, Abdullah, Tala, Adeleye, Olumide, Mamlouk, Noor, Kimchi, Nofar, Afrasiabi, Zaman, Rezk, Nardin, Vulesevic, Branka, Bouab, Meriem, Guzman, Charlotte, Petitjean, Loui, Tselios, Chri, Xue, Xiaoqing, Afilalo, Jonathan, Afilalo, Marc, Oliveira, Maureen, Brenner, Bluma, Brassard, Nathalie, Durand, Madeleine, Schurr, Erwin, Lepage, Pierre, Ragoussis, Jianni, Auld, Daniel, Chassé, Michaël, Kaufmann, Daniel E., Lathrop, G. Mark, Adra, Darin, Hayward, Caroline, Glessner, Joseph T., Shaw, Douglas M., Campbell, Archie, Morris, Marcela, Hakonarson, Hakon, Porteous, David J., Below, Jennifer, Richmond, Anne, Chang, Xiao, Polikowski, Hannah, Lauren, Petty E., Chen, Hung-Hsin, Wanying, Zhu, Fawns-Ritchie, Chloe, North, Kari, McCormick, Joseph B., Glessner, Joseph R., Gignoux, Christopher R., Wicks, Stephen J., Crooks, Kristy, Barnes, Kathleen C., Daya, Michelle, Shortt, Jonathan, Rafaels, Nichola, Chavan, Sameer, Timmers, Paul R. H. J., Wilson, James F., Tenesa, Albert, Kerr, Shona M., D’Mellow, Kenton, Shahin, Doaa, El-Sherbiny, Yasser M., von Hohenstaufen, Kathrin Aprile, Sobh, Ali, Eltoukhy, Madonna M., Nkambul, Lindokuhle, Elhadidy, Tamer A., Abd Elghafar, Mohamed S., El-Jawhari, Jehan J., Mohamed, Attia A. S., Elnagdy, Marwa H., Samir, Amr, Abdel-Aziz, Mahmoud, Khafaga, Walid T., El-Lawaty, Walaa M., Torky, Mohamed S., El-shanshory, Mohamed R., Yassen, Amr M., Hegazy, Mohamed A. F., Okasha, Kamal, Eid, Mohammed A., Moahmed, Hanteera S., Medina-Gomez, Carolina, Ikram, M. Arfan, Uitterlinden, Andre G., Mägi, Reedik, Milani, Lili, Metspalu, Andre, Laisk, Triin, Läll, Kristi, Lepamets, Maarja, Esko, Tõnu, Reimann, Ene, Naaber, Paul, Laane, Edward, Pesukova, Jaana, Peterson, Pärt, Kisand, Kai, Tabri, Jekaterina, Allos, Raili, Hensen, Kati, Starkopf, Joel, Ringmets, Inge, Tamm, Anu, Kallaste, Anne, Alavere, Helene, Metsalu, Kristjan, Puusepp, Mairo, Batini, Chiara, Tobin, Martin D., Venn, Laura D., Lee, Paul H., Shrine, Nick, Williams, Alexander T., Guyatt, Anna L., John, Catherine, Packer, Richard J., Ali, Altaf, Free, Robert C., Wang, Xueyang, Wain, Louise V., Hollox, Edward J., Bee, Catherine E., Adams, Emma L., Palotie, Aarno, Ripatti, Samuli, Ruotsalainen, Sanni, Kristiansson, Kati, Koskelainen, Sami, Perola, Marku, Donner, Kati, Kivinen, Katja, Kaunisto, Mari, Rivolta, Carlo, Bochud, Pierre-Yve, Bibert, Stéphanie, Boillat, Noémie, Nussle, Semira Gonseth, Albrich, Werner, Quinodoz, Mathieu, Kamdar, Dhryata, Suh, Noémie, Neofytos, Dionysio, Erard, Véronique, Voide, Cathy, Friolet, R., Vollenweider, P., Pagani, J. L., Oddo, M., zu Bentrup, F. Meyer, Conen, A., Clerc, O., Marchetti, O., Guillet, A., Guyat-Jacques, C., Foucras, S., Rime, M., Chassot, J., Jaquet, M., Viollet, R. Merlet, Lannepoudenx, Y., Portopena, L., Bochud, P. Y., Desgranges, F., Filippidis, P., Guéry, B., Haefliger, D., Kampouri, E. E., Manuel, O., Munting, A., Papadimitriou-Olivgeris, M., Regina, J., Rochat-Stettler, L., Suttels, V., Tadini, E., Tschopp, J., Van Singer, M., Viala, B., Boillat-Blanco, N., Brahier, T., Hügli, O., Meuwly, J. Y., Pantet, O., Gonseth Nussle, S., Bochud, M., D’Acremont, V., Estoppey Younes, S., Albrich, W. C., Suh, N., Cerny, A., O’Mahony, L., von Mering, C., Frischknecht, M., Kleger, G-R., Filipovic, M., Kahlert, C. R., Wozniak, H., Negro, T. Rochat, Pugin, J., Bouras, K., Knapp, C., Egger, T., Perret, A., Montillier, P., di Bartolomeo, C., Barda, B., de Cid, Rafael, Carreras, Anna, Moreno, Victor, Kogevinas, Manoli, Galván-Femenía, Iván, Blay, Natalia, Farré, Xavier, Sumoy, Lauro, Cortés, Beatriz, Mercader, Josep Maria, Guindo-Martinez, Marta, Torrents, David, Garcia-Aymerich, Judith, Castaño-Vinyals, Gemma, Dobaño, Carlota, Gori, Marco, Renieri, Alessandra, Mari, Francesca, Mondelli, Mario Umberto, Castelli, Francesco, Vaghi, Massimo, Rusconi, Stefano, Montagnani, Francesca, Bargagli, Elena, Franchi, Federico, Mazzei, Maria Antonietta, Cantarini, Luca, Tacconi, Danilo, Feri, Marco, Scala, Raffaele, Spargi, Genni, Nencioni, Cesira, Bandini, Maria, Caldarelli, Gian Piero, Canaccini, Anna, Ognibene, Agostino, D’Arminio Monforte, Antonella, Girardis, Massimo, Antinori, Andrea, Francisci, Daniela, Schiaroli, Elisabetta, Scotton, Pier Giorgio, Panese, Sandro, Scaggiante, Renzo, Monica, Matteo Della, Capasso, Mario, Fiorentino, Giuseppe, Castori, Marco, Aucella, Filippo, Biagio, Antonio Di, Masucci, Luca, Valente, Serafina, Mandalà, Marco, Zucchi, Patrizia, Giannattasio, Ferdinando, Coviello, Domenico A., Mussini, Cristina, Tavecchia, Luisa, Crotti, Lia, Rizzi, Marco, Rovere, Maria Teresa La, Sarzi-Braga, Simona, Bussotti, Maurizio, Ravaglia, Sabrina, Artuso, Rosangela, Perrella, Antonio, Romani, Davide, Bergomi, Paola, Catena, Emanuele, Vincenti, Antonella, Ferri, Claudio, Grassi, Davide, Pessina, Gloria, Tumbarello, Mario, Pietro, Massimo Di, Sabrina, Ravaglia, Luchi, Sauro, Furini, Simone, Dei, Simona, Benetti, Elisa, Picchiotti, Nicola, Sanarico, Maurizio, Ceri, Stefano, Pinoli, Pietro, Raimondi, Francesco, Biscarini, Filippo, Stella, Alessandra, Zguro, Kristina, Capitani, Katia, Tanfoni, Marco, Fallerini, Chiara, Daga, Sergio, Baldassarri, Margherita, Fava, Francesca, Frullanti, Elisa, Valentino, Floriana, Doddato, Gabriella, Giliberti, Annarita, Tita, Rossella, Amitrano, Sara, Bruttini, Mirella, Croci, Susanna, Meloni, Ilaria, Mencarelli, Maria Antonietta, Rizzo, Caterina Lo, Pinto, Anna Maria, Beligni, Giada, Tommasi, Andrea, Sarno, Laura Di, Palmieri, Maria, Carriero, Miriam Lucia, Alaverdian, Diana, Busani, Stefano, Bruno, Raffaele, Vecchia, Marco, Belli, Mary Ann, Mantovani, Stefania, Ludovisi, Serena, Quiros-Roldan, Eugenia, Antoni, Melania Degli, Zanella, Isabella, Siano, Matteo, Emiliozzi, Arianna, Fabbiani, Massimiliano, Rossetti, Barbara, Bergantini, Laura, D’Alessandro, Miriana, Cameli, Paolo, Bennett, David, Anedda, Federico, Marcantonio, Simona, Scolletta, Sabino, Guerrini, Susanna, Conticini, Edoardo, Frediani, Bruno, Spertilli, Chiara, Donati, Alice, Guidelli, Luca, Corridi, Marta, Croci, Leonardo, Piacentini, Paolo, Desanctis, Elena, Cappelli, Silvia, Verzuri, Agnese, Anemoli, Valentina, Pancrazzi, Alessandro, Lorubbio, Maria, Miraglia, Federica Gaia, Venturelli, Sophie, Cossarizza, Andrea, Vergori, Alessandra, Gabrieli, Arianna, Riva, Agostino, Paciosi, Francesco, Andretta, Francesca, Gatti, Francesca, Parisi, Saverio Giuseppe, Baratti, Stefano, Piscopo, Carmelo, Russo, Roberta, Andolfo, Immacolata, Iolascon, Achille, Carella, Massimo, Merla, Giuseppe, Squeo, Gabriella Maria, Raggi, Pamela, Marciano, Carmen, Perna, Rita, Bassetti, Matteo, Sanguinetti, Maurizio, Giorli, Alessia, Salerni, Lorenzo, Parravicini, Pierpaolo, Menatti, Elisabetta, Trotta, Tullio, Coiro, Gabriella, Lena, Fabio, Martinelli, Enrico, Mancarella, Sandro, Gabbi, Chiara, Maggiolo, Franco, Ripamonti, Diego, Bachetti, Tiziana, Suardi, Claudia, Parati, Gianfranco, Bottà, Giordano, Domenico, Paolo Di, Rancan, Ilaria, Bianchi, Francesco, Colombo, Riccardo, Barbieri, Chiara, Acquilini, Donatella, Andreucci, Elena, Segala, Francesco Vladimiro, Tiseo, Giusy, Falcone, Marco, Lista, Mirjam, Poscente, Monica, Vivo, Oreste De, Petrocelli, Paola, Guarnaccia, Alessandra, Baroni, Silvia, van Heel, David A., Hunt, Karen A., Trembath, Richard C., Huang, Qin Qin, Martin, Hilary C., Mason, Dan, Trivedi, Bhavi, Wright, John, Finer, Sarah, Akhtar, Shaheen, Anwar, Mohammad, Arciero, Elena, Ashraf, Samina, Breen, Gerome, Chung, Raymond, Curtis, Charles J., Chowdhury, Maharun, Colligan, Grainne, Deloukas, Pano, Durham, Ceri, Griffiths, Chri, Hurles, Matt, Hussain, Shapna, Islam, Kamrul, Khan, Ahsan, Khan, Amara, Lavery, Cath, Lee, Sang Hyuck, Lerner, Robin, MacArthur, Daniel, MacLaughlin, Bev, Martin, Hilary, Miah, Shefa, Newman, Bill, Safa, Nishat, Tahmasebi, Farah, Griffiths, Christopher J., Smith, Albert V., Boughton, Andrew P., Li, Kevin W., LeFaive, Jonathon, Annis, Aubrey, Niavarani, Ahmadreza, Aliannejad, Rasoul, Sharififard, Bahareh, Amirsavadkouhi, Ali, Naderpour, Zeinab, Tadi, Hengameh Ansari, Aleagha, Afshar Etemadi, Ahmadi, Saeideh, Moghaddam, Seyed Behrooz Mohseni, Adamsara, Alireza, Saeedi, Morteza, Abdollahi, Hamed, Hosseini, Abdolmajid, Chariyavilaskul, Pajaree, Jantarabenjakul, Watsamon, Hirankarn, Nattiya, Chamnanphon, Monpat, Suttichet, Thitima B., Shotelersuk, Vorasuk, Pongpanich, Monnat, Phokaew, Chureerat, Chetruengchai, Wanna, Putchareon, Opa, Torvorapanit, Pattama, Puthanakit, Thanyawee, Suchartlikitwong, Pintip, Nilaratanakul, Voraphoj, Sodsai, Pimpayao, Brumpton, Ben M., Hveem, Kristian, Willer, Cristen, Zhou, Wei, Rogne, Tormod, Solligard, Erik, Åsvold, Bjørn Olav, Franke, Lude, Boezen, Marike, Deelen, Patrick, Claringbould, Annique, Lopera, Esteban, Warmerdam, Robert, Vonk, Judith. M., van Blokland, Irene, Lanting, Pauline, Ori, Anil P. S., Feng, Yen-Chen Anne, Mercader, Josep, Weiss, Scott T., Karlson, Elizabeth W., Smoller, Jordan W., Murphy, Shawn N., Meigs, James B., Woolley, Ann E., Green, Robert C., Perez, Emma F., Zöllner, Sebastian, Wang, Jiongming, Beck, Andrew, Sloofman, Laura G., Ascolillo, Steven, Sebra, Robert P., Collins, Brett L., Levy, Te, Buxbaum, Joseph D., Sealfon, Stuart C., Jordan, Daniel M., Thompson, Ryan C., Gettler, Kyle, Chaudhary, Kumardeep, Belbin, Gillian M., Preuss, Michael, Hoggart, Clive, Choi, Sam, Underwood, Slayton J., Salib, Irene, Britvan, Bari, Keller, Katherine, Tang, Lara, Peruggia, Michael, Hiester, Liam L., Niblo, Kristi, Aksentijevich, Alexandra, Labkowsky, Alexander, Karp, Avromie, Zlatopolsky, Menachem, Zyndorf, Marissa, Charney, Alexander W., Beckmann, Noam D., Schadt, Eric E., Abul-Husn, Noura S., Cho, Judy H., Itan, Yuval, Kenny, Eimear E., Loos, Ruth J. F., Nadkarni, Girish N., Do, Ron, O’Reilly, Paul, Huckins, Laura M., Ferreira, Manuel A. R., Abecasis, Goncalo R., Leader, Joseph B., Cantor, Michael N., Justice, Anne E., Carey, Dave J., Chittoor, Geetha, Josyula, Navya Shilpa, Kosmicki, Jack A., Horowitz, Julie E., Baras, Ari, Gass, Matthew C., Yadav, Ashish, Mirshahi, Tooraj, Hottenga, Jouke Jan, Bartels, Meike, de geus, Eco E. J. C., Nivard, Michel M. G., Verma, Anurag, Ritchie, Marylyn D., Rader, Daniel, Li, Binglan, Verma, Shefali S., Lucas, Anastasia, Bradford, Yuki, Abedalthagafi, Malak, Alaamery, Manal, Alshareef, Abdulraheem, Sawaji, Mona, Massadeh, Salam, AlMalik, Abdulaziz, Alqahtani, Saleh, Baraka, Dona, Harthi, Fawz Al, Alsolm, Ebtehal, Safieh, Leen Abu, Alowayn, Albandary M., Alqubaishi, Fatimah, Mutairi, Amal Al, Mangul, Serghei, Almutairi, Mansour, Aljawini, Nora, Albesher, Nour, Arabi, Yaseen M., Mahmoud, Ebrahim S., Khattab, Amin K., Halawani, Roaa T., Alahmadey, Ziab Z., Albakri, Jehad K., Felemban, Walaa A., Suliman, Bandar A., Hasanato, Rana, Al-Awdah, Laila, Alghamdi, Jahad, AlZahrani, Deema, AlJohani, Sameera, Al-Afghani, Hani, AlDhawi, Nouf, AlBardis, Hadeel, Alkwai, Sarah, Alswailm, Moneera, Almalki, Faisal, Albeladi, Maha, Almohammed, Iman, Barhoush, Eman, Albader, Anoud, Alotaibi, Sara, Alghamdi, Bader, Jung, Junghyun, fawzy, Mohammad S., Alrashed, May, Zeberg, Hugo, Nkambul, Lindo, Frithiof, Robert, Hultström, Michael, Lipcsey, Miklo, Tardif, Nicola, Rooyackers, Olav, Grip, Jonathan, Maricic, Tomislav, Helgeland, Øyvind, Magnus, Per, Trogstad, Lill-Iren S., Lee, Yunsung, Harris, Jennifer R., Mangino, Massimo, Spector, Tim D., Emma, Duncan, Moutsianas, Louka, Caulfield, Mark J., Scott, Richard H., Kousathanas, Athanasio, Pasko, Dorota, Walker, Susan, Stuckey, Alex, Odhams, Christopher A., Rhodes, Daniel, Fowler, Tom, Rendon, Augusto, Chan, Georgia, Arumugam, Prabhu, Karczewski, Konrad J., Martin, Alicia R., Wilson, Daniel J., Spencer, Chris C. A., Crook, Derrick W., Wyllie, David H., O’Connell, Anne Marie, Atkinson, Elizabeth G., Tsuo, Kristin, Baya, Nikola, Turley, Patrick, Gupta, Rahul, Walters, Raymond K., Palmer, Duncan S., Sarma, Gopal, Cheng, Nathan, Lu, Wenhan, Churchhouse, Claire, Goldstein, Jacqueline I., King, Daniel, Seed, Cotton, Daly, Mark J., Finucane, Hilary, Bryant, Sam, Satterstrom, F. Kyle, Band, Gavin, Earle, Sarah G., Lin, Shang-Kuan, Arning, Nicola, Koelling, Nil, Armstrong, Jacob, Rudkin, Justine K., Callier, Shawneequa, Cusick, Caroline, Soranzo, Nicole, Zhao, Jing Hua, Danesh, John, Angelantonio, Emanuele Di, Butterworth, Adam S., Sun, Yan V., Huffman, Jennifer E., Cho, Kelly, O’Donnell, Christopher J., Tsao, Phil, Gaziano, J. Michael, Peloso, Gina, Ho, Yuk-Lam, Smieszek, Sandra P., Polymeropoulos, Christo, Polymeropoulos, Vasilio, Polymeropoulos, Mihael H., Przychodzen, Bartlomiej P., Fernandez-Cadenas, Israel, Planas, Anna M., Perez-Tur, Jordi, Llucià-Carol, Laia, Cullell, Natalia, Muiño, Elena, Cárcel-Márquez, Jara, DeDiego, Marta L., Iglesias, Lara Lloret, Soriano, Alex, Rico, Veronica, Agüero, Daiana, Bedini, Josep L., Lozano, Francisco, Domingo, Carlo, Robles, Veronica, Ruiz-Jaén, Francisca, Márquez, Leonardo, Gomez, Juan, Coto, Eliecer, Albaiceta, Guillermo M., García-Clemente, Marta, Dalmau, David, Arranz, Maria J., Dietl, Beatriz, Serra-Llovich, Alex, Soler, Pere, Colobrán, Roger, Martín-Nalda, Andrea, Martínez, Alba Parra, Bernardo, David, Rojo, Silvia, Fiz-López, Aida, Arribas, Elisa, de la Cal-Sabater, Paloma, Segura, Tomá, González-Villa, Esther, Serrano-Heras, Gemma, Martí-Fàbregas, Joan, Jiménez-Xarrié, Elena, de Felipe Mimbrera, Alicia, Masjuan, Jaime, García-Madrona, Sebastian, Domínguez-Mayoral, Anna, Villalonga, Joan Montaner, Menéndez-Valladares, Paloma, Chasman, Daniel I., Sesso, Howard D., Manson, JoAnn E., Buring, Julie E., Ridker, Paul M., Franco, Giulianini, Davis, Lea, Lee, Sulggi, Priest, Jame, Sankaran, Vijay G., van Heel, David, Biesecker, Le, Kerchberger, V. Eric, Baillie, J. Kenneth, APH - Personalized Medicine, APH - Health Behaviors & Chronic Diseases, Biological Psychology, APH - Mental Health, AMS - Sports, AMS - Ageing & Vitality, APH - Methodology, Mccurdy, Shannon, Mccormick, Joseph B., Macarthur, Daniel, Maclaughlin, Bev, Lefaive, Jonathon, Almalik, Abdulaziz, Alzahrani, Deema, Aljohani, Sameera, Aldhawi, Nouf, Albardis, Hadeel, Fawzy, Mohammad S., Dediego, Marta L., Stem Cell Aging Leukemia and Lymphoma (SALL), Groningen Institute for Gastro Intestinal Genetics and Immunology (3GI), Life Course Epidemiology (LCE), Groningen Research Institute for Asthma and COPD (GRIAC), University of Zurich, COVID-19 Host Genetics Initiative, Barcelona Supercomputing Center, COVID-19 Genetics Initiative, including authors, Institute for Molecular Medicine Finland, and Data Science Genetic Epidemiology Lab
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Informàtica::Aplicacions de la informàtica::Bioinformàtica [Àrees temàtiques de la UPC] ,Quantitative Trait Loci ,MUC5B PROMOTER POLYMORPHISM ,Genome-wide association studies ,COVID-19 (Malaltia) ,UFSP13-7 Evolution in Action: From Genomes to Ecosystems ,COVID-19 (Disease) ,Settore BIO/12 - BIOCHIMICA CLINICA E BIOLOGIA MOLECOLARE CLINICA ,SDG 3 - Good Health and Well-being ,Humans ,genetics ,Genetic variation ,Genomes ,Medicinsk genetik ,1000 Multidisciplinary ,Multidisciplinary ,Chromosome Mapping ,COVID-19 ,Human Genetics ,10124 Institute of Molecular Life Sciences ,covid-19 ,3121 General medicine, internal medicine and other clinical medicine ,570 Life sciences ,biology ,Medical Genetics - Abstract
Matters arising from: Mapping the human genetic architecture of COVID-19 Original Article published on 08 July 2021 https://www.nature.com/articles/s41586-021-03767-x The COVID-19 pandemic continues to pose a major public health threat, especially in countries with low vaccination rates. To better understand the biological underpinnings of SARS-CoV-2 infection and COVID-19 severity, we formed the COVID-19 Host Genetics Initiative1. Here we present a genome-wide association study meta-analysis of up to 125,584 cases and over 2.5 million control individuals across 60 studies from 25 countries, adding 11 genome-wide significant loci compared with those previously identified2. Genes at new loci, including SFTPD, MUC5B and ACE2, reveal compelling insights regarding disease susceptibility and severity. Here we present meta-analyses bringing together 60 studies from 25 countries (Fig. 1 and Supplementary Table 1) for three COVID-19-related phenotypes: (1) individuals critically ill with COVID-19 on the basis of requiring respiratory support in hospital or who died as a consequence of the disease (9,376 cases, of which 3,197 are new in this data release, and 1,776,645 control individuals); (2) individuals with moderate or severe COVID-19 defined as those hospitalized due to symptoms associated with the infection (25,027 cases, 11,386 new and 2,836,272 control individuals); and (3) all cases with reported SARS-CoV-2 infection regardless of symptoms (125,584 cases, 76,022 new and 2,575,347 control individuals). Most studies have reported results before the roll out of the COVID-19 vaccination campaign. An overview of the study design is provided in Supplementary Fig. 1. We found a total of 23 genome-wide significant loci (P
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- 2022
63. Numerical model for the determination of erythrocyte mechanical properties and wall shear stress in vivo from intravital microscopy
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Alexander T. Williams, Vivek Jani, Ozlem Yalcin, Pedro Cabrales, Daniel Ortiz, Carlos Munoz, Alfredo Lucas, Vinay P. Jani, Yalçın, Özlem (ORCID 0000-0001-5547-6653 & YÖK ID 218440), Jani, Vivek P., Lucas, Alfredo, Jani, Vinay P., Munoz, Carlos, Williams, Alexander T., Ortiz, Daniel, Cabrales, Pedro, and School of Medicine
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Materials science ,Capillary action ,Physiology ,plug flow ,Population ,erythrocyte mechanics ,Medical Physiology ,microcirculation ,Bioengineering ,Context (language use) ,030204 cardiovascular system & hematology ,lcsh:Physiology ,capillary ,shear strain ,Shear modulus ,03 medical and health sciences ,0302 clinical medicine ,Physiology (medical) ,intravital microscopy ,Shear stress ,Psychology ,education ,Original Research ,030304 developmental biology ,0303 health sciences ,education.field_of_study ,Plug flow ,lcsh:QP1-981 ,Hematology ,wall shear stress ,Erythrocyte mechanics ,Wall shear stress ,Shear strain ,Capillary ,Microcirculation ,Intravital microscopy ,Finite strain theory ,Biomedical engineering - Abstract
The mechanical properties and deformability of Red Blood Cells (RBCs) are important determinants of blood rheology and microvascular hemodynamics. The objective of this study is to quantify the mechanical properties and wall shear stress experienced by the RBC membrane during capillary plug flow in vivo utilizing high speed video recording from intravital microscopy, biomechanical modeling, and computational methods. Capillaries were imaged in the rat cremaster muscle pre- and post-RBC transfusion of stored RBCs for 2-weeks. RBC membrane contours were extracted utilizing image processing and parametrized. RBC parameterizations were used to determine updated deformation gradient and Lagrangian Green strain tensors for each point along the parametrization and for each frame during plug flow. The updated Lagrangian Green strain and Displacement Gradient tensors were numerically fit to the Navier-Lame equations along the parameterized boundary to determined Lame's constants. Mechanical properties and wall shear stress were determined before and transfusion, were grouped in three populations of erythrocytes: native cells (NC) or circulating cells before transfusion, and two distinct population of cells after transfusion with stored cells (SC1 and SC2). The distinction, between the heterogeneous populations of cells present after the transfusion, SC1 and SC2, was obtained through principle component analysis (PCA) of the mechanical properties along the membrane. Cells with the first two principle components within 3 standard deviations of the mean, were labeled as SC1, and those with the first two principle components greater than 3 standard deviations from the mean were labeled as SC2. The calculated shear modulus average was 1.1 +/- 0.2, 0.90 +/- 0.15, and 12 +/- 8 MPa for NC, SC1, and SC2, respectively. The calculated young's modulus average was 3.3 +/- 0.6, 2.6 +/- 0.4, and 32 +/- 20 MPa for NC, SC1, and SC2, respectively. o our knowledge, the methods presented here are the first estimation of the erythrocyte mechanical properties and shear stress in vivo during capillary plug flow. In summary, the methods introduced in this study may provide a new avenue of investigation of erythrocyte mechanics in the context of hematologic conditions that adversely affect erythrocyte mechanical properties., Heart Lung and Blood Institute, NIH Grants
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- 2020
64. Increased Hemoglobin Oxygen Affinity With 5-Hydroxymethylfurfural Supports Cardiac Function During Severe Hypoxia
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Vivek Jani, Ozlem Yalcin, Cynthia R. Muller, Pedro Cabrales, Alexander T. Williams, Alfredo Lucas, Eilleen S. Y. Ao-ieong, Yalçın, Özlem (ORCID 0000-0001-5547-6653 & YÖK ID 218440), Lucas, Alfredo, Ao-ieong, Eilleen S. Y., Williams, Alexander T., Jani, Vivek P., Muller, Cynthia R, Cabrales, Pedro, School of Medicine, and Department of Physiology
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Cardiac function curve ,Cardiac output ,Hypoxic hypoxia ,left ventricle ,Physiology ,Medical Physiology ,030204 cardiovascular system & hematology ,Pharmacology ,Cardiovascular ,5-HMF ,lcsh:Physiology ,03 medical and health sciences ,0302 clinical medicine ,Physiology (medical) ,oxygen delivery ,medicine ,Psychology ,conductance catheter ,Lung ,Allosteric effectors ,Cardiac function ,Conductance catheter ,Hemoglobin ,Left ventricle ,Oxygen delivery ,030304 developmental biology ,Original Research ,0303 health sciences ,Ejection fraction ,lcsh:QP1-981 ,Chemistry ,Cardiac muscle ,Stroke volume ,Hematology ,hemoglobin ,medicine.anatomical_structure ,Heart Disease ,Increased hemoglobin oxygen affinity ,cardiac function ,allosteric effectors - Abstract
Acclimatization to hypoxia or high altitude involves physiological adaptation processes, to influence oxygen (O2) transport and utilization. Several natural products, including aromatic aldehydes and isothiocyanates stabilize the R-state of hemoglobin (Hb), increasing Hb-O2 affinity and Hb-O2 saturation. These products are a counter intuitive therapeutic strategy to increase O2 delivery during hypoxia. 5-Hydroxymethylfurfural (5-HMF) is well known Amadori compound formed during the Maillard reaction (the non-enzymatic browning and caramelization of carbohydrate-containing foods after thermal treatment), with well documented effects in Hb-O2 affinity. This study explores the therapeutic potential of 5-HMF on left ventricular (LV) cardiac function (LVCF) during hypoxia. Anesthetized Golden Syrian hamsters received 5-HMF i.v., at 100 mg/kg and were subjected to stepwise increased hypoxia (15, 10, and 5%) every 30 min. LVCF was assessed using a closed chest method with a miniaturized conductance catheter via continuous LV pressure-volume (PV) measurements. Heart hypoxic areas were studied using pimonidazole staining. 5-HMF improved cardiac indices, including stroke volume (SV), cardiac output (CO), ejection fraction (EF), and stroke work (SW) compared to the vehicle group. At 5% O2, SV, CO, EF, and SW were increased by 53, 42, 33, and 51% with 5-HMF relative to vehicle. Heart chronotropic activity was not statistically changed, suggesting that differences in LV-CF during hypoxia by 5-HMF were driven by volume dependent effects. Analysis of coronary blood flow and cardiac muscle metabolism suggest no direct pharmacological effects from 5-HMF, therefore these results can be attributed to 5-HMF-dependent increase in Hb-O2 affinity. These studies establish that naturally occurring aromatic aldehydes, such as 5-HMF, produce modification of hemoglobin oxygen affinity with promising therapeutic potential to increase O2 delivery during hypoxic hypoxia., National Institutes of Health (NIH); Heart Lung and Blood Institute (HLBI)
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- 2019
65. Increased hemoglobin affinity for oxygen with GBT1118 improves hypoxia tolerance in sickle cell mice.
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Dufu K, Williams AT, Muller CR, Walser CM, Lucas A, Eaker AM, Alt C, Cathers BE, Oksenberg D, and Cabrales P
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- Allosteric Regulation, Animals, Brain metabolism, Disease Models, Animal, Hematocrit, Hemoglobin, Sickle metabolism, Mice, Mice, Transgenic, Niacinamide pharmacology, Partial Pressure, Anemia, Sickle Cell metabolism, Benzaldehydes pharmacology, Cerebral Cortex metabolism, Erythrocytes drug effects, Hematologic Agents pharmacology, Hemoglobin, Sickle drug effects, Hypoxia metabolism, Niacinamide analogs & derivatives, Oxygen metabolism
- Abstract
Therapeutic agents that increase the Hb affinity for oxygen (O
2 ) could, in theory, lead to decreased O2 release from Hb and impose a hypoxic risk to tissues. In this study, GBT1118, an allosteric modifier of Hb affinity for O2 , was used to assess the impact of increasing Hb affinity for O2 on brain tissue oxygenation, blood pressure, heart rate, O2 delivery, and tolerance to hypoxia in Townes transgenic sickle cell disease (SCD) mice. Brain oxygenation and O2 delivery were studied during normoxia and severe hypoxic challenges. Chronic treatment with GBT1118 increased Hb affinity for O2 , reducing the Po2 for 50% HbO2 saturation (P50) in SCD mice from 31 mmHg to 18 mmHg. This treatment significantly reduced anemia, increasing hematocrit by 33%, improved cardiac output (CO), and O2 delivery and extraction. Chronically increasing Hb affinity for O2 with GBT1118 preserved cortical O2 tension during normoxia, improved cortical O2 tension during hypoxia, and increased tolerance to severe hypoxia in SCD mice. Independent of hematological changes induced by chronic treatment, a single dose of GBT1118 significantly improved tolerance to hypoxia, highlighting the benefits of increasing Hb affinity for O2 and consequently reducing sickling of RBCs in blood during hypoxia in SCD. NEW & NOTEWORTHY Chronic pharmacologically increased hemoglobin affinity for oxygen in sickle cell disease mice alleviated hematological consequences of sickle cell disease, increasing RBC half-life, hematocrit, and hemoglobin concentration, while also decreasing reticulocyte count. Additionally, chronically increased hemoglobin affinity for oxygen significantly improved survival as well as cortical tissue oxygenation in sickle cell disease mice during hypoxia, suggesting that oxygen delivery and utilization is improved by increased hemoglobin affinity for oxygen.- Published
- 2021
- Full Text
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