65 results on '"Wegner, Scott A."'
Search Results
52. The Ethics of Change
- Author
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Wegner, Scott, primary, Moseman, Gerald, additional, and Watson, Robert, additional
- Published
- 2004
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53. Clinical Implications of Identifying Non-B Subtypes of Human Immunodeficiency Virus Type 1 Infection
- Author
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Walter, Elizabeth A., primary, Gilliam, Bruce, additional, Delmar, Judy A., additional, Spooner, Katherine, additional, Morris, Joseph T., additional, Aronson, Naomi, additional, Wegner, Scott A., additional, Michael, Nelson L., additional, and Jagodzinski, Linda L., additional
- Published
- 2000
- Full Text
- View/download PDF
54. A Novel Human Immunodeficiency Virus Type 1 Reverse Transcriptase Mutational Pattern Confers Phenotypic Lamivudine Resistance in the Absence of Mutation 184V
- Author
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Hertogs, Kurt, primary, Bloor, Stuart, additional, De Vroey, Veronique, additional, van den Eynde, Christel, additional, Dehertogh, Pascale, additional, van Cauwenberge, Anja, additional, Stürmer, Martin, additional, Alcorn, Timothy, additional, Wegner, Scott, additional, van Houtte, Margriet, additional, Miller, Veronica, additional, and Larder, Brendan A., additional
- Published
- 2000
- Full Text
- View/download PDF
55. Performance of the Affymetrix GeneChip HIV PRT 440 Platform for Antiretroviral Drug Resistance Genotyping of Human Immunodeficiency Virus Type 1 Clades and Viral Isolates with Length Polymorphisms
- Author
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Vahey, Maryanne, primary, Nau, Martin E., additional, Barrick, Sandra, additional, Cooley, John D., additional, Sawyer, Robert, additional, Sleeker, Alex A., additional, Vickerman, Peter, additional, Bloor, Stuart, additional, Larder, Brendan, additional, Michael, Nelson L., additional, and Wegner, Scott A., additional
- Published
- 1999
- Full Text
- View/download PDF
56. CXCR4 Polymorphisms and HIV-1 Pathogenesis
- Author
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Martin, Maureen P., primary, Carrington, Mary, additional, Dean, Michael, additional, O'Brien, Stephen J., additional, Sheppard, Haynes W., additional, Wegner, Scott A., additional, and Michael, Nelson L., additional
- Published
- 1998
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57. Genomic Organization and Functional Characterization of the Chemokine Receptor CXCR4, a Major Entry Co-receptor for Human Immunodeficiency Virus Type 1
- Author
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Wegner, Scott A., primary, Ehrenberg, Philip K., additional, Chang, George, additional, Dayhoff, Deborah E., additional, Sleeker, Alex L., additional, and Michael, Nelson L., additional
- Published
- 1998
- Full Text
- View/download PDF
58. Treatment of Chronic Graft-Versus-Host Disease With Clofazimine
- Author
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Lee, Stephanie J., primary, Wegner, Scott A., additional, McGarigle, Carol J., additional, Bierer, Barbara E., additional, and Antin, Joseph H., additional
- Published
- 1997
- Full Text
- View/download PDF
59. Transcriptional Regulation of the Rat Vascular Endothelial Growth Factor Gene by Hypoxia
- Author
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Levy, Andrew P., primary, Levy, Nina S., additional, Wegner, Scott, additional, and Goldberg, Mark A., additional
- Published
- 1995
- Full Text
- View/download PDF
60. Relapsing Illness Due to Rochalimaea henselae in Immunocompetent Hosts: Implication for Therapy and New Epidemiological Associations.
- Author
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Lucey, Daniel, Dolan, Matthew J., Moss, C. Wayne, Garcia, Maria, Hollis, Dannie G., Wegner, Scott, Morgan, Greg, Almeida, Roy, Leong, Diane, Greisen, Kay S., Welch, David F., and Slater, Leonard N.
- Abstract
Two previously healthy, immunocompetent men had persistent Rochalimaea henselae bacteremia with clinical relapses after courses of antibiotics to which the isolates were ultimately demonstrated susceptible in vitro. Both had sustained tick bites prior to their illnesses, thus demonstrating an association not previously identified, although suspected. The first patient had relapsing fever, constitutional symptoms, and an episode of aseptic meningitis despite therapy with amoxicillin, then with doxycycline, and then with ceftriaxone. Thereafter, he spontaneously became asymptomatic during a span of 2 months of persistent bacteremia. Finally, after 2 weeks of therapy with ceftriaxone plus gentamicin, followed by 4 weeks of therapy with oral ciprofloxacin, his bacteremia was cured. The second man had relapsing fever and constitutional symptoms after courses of tetracycline, then of chloramphenicol, and then of doxycycline. He became permanently asymptomatic after serial 2-week courses of chloramphenicol and erythromycin. The greater efficacy of lysis-centrifugation blood cultures in the recovery of R. henselae was noted. [ABSTRACT FROM PUBLISHER]
- Published
- 1992
61. Predictors of CD4 count change over 8 months of follow up in HIV-1-infected patients with a CD4 count >= 300 cells/mu L who were assigned to 7.5 MIU interleukin-2
- Author
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Fox, Zoe, Antunes, Francisco, Davey, Rick, Gazzard, Brian, Klimas, Nancy, Labriola, Ann, Losso, Marcelo, Neaton, James D., Phillips, Andrew N., Ruxrungtham, Kiat, Staszewski, Schlomo, Weiss, Laurence, Lundgren, Jens D., Abrams, Donald I., Cooper, David A., Darbyshire, Janet H., Duncan, William R., Emery, Sean, Lane, H. Clifford, Lehrman, Sandra, Aguilar, Liliana, Betina Angel, Eleonora, Aquilia, Silvia, Belloso, Waldo, Benetucci, Jorge, Bittar, Victor, Cahn, Pedro, Casiro, Arnaldo, Contarelli, Jorge, Corral, Jorge, Daciuk, Lucia, David, Daniel, Ferrari, Ines, Fridman, Diego, Galache, Viviana, Guaragna, Graciela, Ivalo, Silvina, Laplume, Hector, Lanusse, Isabel, Lasala, Maria B., Lattes, Roberta, Lasovsky, Jaime, Lopardo, Gustavo, Lourtau, Leonardo, Lupo, Sergio, Maranzana, Aldo, Marson, Cristina, Massera, Lucila, Del Lujan Sanchez, Marisa, Somenzini, Carla, Tocci, Mariel, Algar, Sally, Anderson, Jonathan, Baker, David, Blavius, Kathy, Bloch, Mark, Boyle, Michael, Bradford, David, Britton, Phillip, Carrall, Leah, Carr, Andrew, Chuah, John, Curry, Michael, D Arcy-Evans, Clive, Dobson, Pauline, Doong, Nicholas, Egan, Cari, Ferguson, Wendy, Finlayson, Robert, French, Martyn, Frater, Anthony, Gold, Julian, Habel, Philip, Haig, Kay, Holland, Rohan, Hyland, Natalie, Hoy, Jennifer, Hudson, Jeff, James, Robyn, Leung, Jenny, Lowe, Kaye, Macrae, Karen, Mcmurchie, Marilyn, Medland, Nicholas, Miller, Samantha, Murray, Jo, Newman, Rosie, Orth, David, Patching, Julie, Primrose, Ruth, Ree, Hugo, Richardson, Robyn, Rogers, Gary, Roney, Janine, Roth, Norman, Sarangapany, Jeganathan, Shaw, David, Silberberg, Carol, Skett, Jenny, Williams, Leah, Soo, Tuck Meng, Sowden, David, Street, Alan, Vale, Robyn, Villella, Claudio, Walker, Alan, Watson, Ashley, Wendt, Ngaire, Wood, Helen, Youds, David, Aichelburg, Alexander, Rieger, Armin, Vetter, Norbert, Clumeck, Nathan, Wit, Stephane, Kabeya, Kabamba, O Doherty, Elizabeth, Amorim, Cristiane Sales, Basso, Caritas Relva, Lewi, David Salamao, Pereira, Luiz Carlos, Da Silva, Mariliza, Lobato Souza, Tamara Newman, Angel, Jonathan, Bouchard, Pierrette-Rolande, Clark, Fran, Cohen, Jeff, Dambreville, Mimose, Ellis, Michele, Fiset, Stephan, Foster, Andrea, Fraser, Christopher, Gagnon, Susan, Gilmour, Janet, Guenette, Richard, Haldane, Heather, Hawley-Foss, Nanci, Hyndman, Susan, Johnston, Lynn, Jubinville, Nathalie, Juneau, Francoise, Kelleher, Lynn, Lapointe, Lyne, Latendre-Paquette, Judy, Lindemulder, Adeline, Mashinter, Laura, Lefebvre, Eric, Mcfarland, Nancy, Morisseau, Chantal, O Neill, Robert, Piche, Alain, Ralph, Edward, Rouleau, Danielle, Routy, Jean-Pierre, Sandre, Roger, Schmidt, Shelley, Shafran, Stephen, Smaill, Fiona, Stromberg, Dale, Trepanier, Jean-Marc, Trottier, Sylvie, Veal, Susanne, Walmsley, Sharon, Weiss, Karl, Williams, Kurt, Young, Mavis, Zaleschuk, Barbara, Zarowny, Don, Baadegaard, Bente, Black, Finn, Boedker, Kirsten, Gerstoft, Jan, Jensen, Lene, Mathiesen, Lars, Nielsen, Henrik, Pedersen, Court, Petersen, Dorthe, Aboulker, Jean-Pierre, Baakili, Adyb, Bengrait, Nafissa, Bensalem, Maryse, Berthe, Huguette, Bloche, Martin, Bazin, Claude, Boue, Francois, Bouvet, Elisabeth, Brancon, Christiane, Capitant, Catherine, Ceppi, Carole, Cheneau, Christine, Coutellier, Anne, Chennebault, Jean Marie, Coquet, Fabienne, Truchis, Pierre, Delavalle, Anne-Marie, Frixon-Marin, Veronique, Gastaut, Jean-Albert, Delfraissy, Francois, Eliaszeicz, Muriel, Gallais, Herve, Gataut, Jean-Albert, Gilquin, Jacques, Gonzalez-Canali, Gustavo, Gaudebout, Chrisiane, Goujard, Cecile, Hoen, Bruno, Honore, Patricia, Jarousse, Bernard, Lang, Jean-Marie, Lefebvre, Benedict, Levy, Yves, Loison, Jocelyne, Maignan, Aline, Meynard, Jean-Luc, Michon, Christophe, Mole, Martin, Marsal, Laurence, Matheron, Sophie, Mortier, Emmanuel, Oksenhendler, Eric, Poirier, Sandrine, Picard-Dahan, Catherine, Ravaux, Isabelle, Raffi, Francois, Raguin, Gilles, Reynes, Jacque, Rozenbaum, Willy, Salmon, Dominique, Simon, Anne, Spiridon, Gabriella, Viard, Jean-Paul, Vidal, Michele, Zucman, David, Bergmann, Frank, Brockmeyer, Norbert, Faetkenheuer, Gerd, Fenske, Stefan, Gey, Daniela, Goebel, Frank-Detlef, Goetsch, Martina, Hartmann, Martin, Klinker, Hartwig, Kremer, Gisela, Mantzsch, Kathleen, Mauss, Stefan, Rockstroh, Juergen, Rotty, Jessica, Rund, Ellen, Schneider, Katrin, Schuermann, Dirk, Staszweski, Schlomo, Tilmann, Klaus, Vogel, Martin, Bentwich, Zvi, Drora, Goldstain, Kedem, Eynat, Lang, Ruth, Levi, Itzic, Maayan, Shlomo, Magen, Eli, Mamorsky, Merav, Pilpul, Anat, Pollack, Shimon, Sthoeger, Zev, Vered, Hadas, Yust, Israel, Lyons, Fiona, Mulcahy, Fiona, Rochford, Annette, Auiti, Fernando, Angarano, Gioacchino, Bertelli, Davide, Bini, Teresa, Bruno, Raffaele, Cadeo, Gian Pietro, Carosi, Giampietro, D Arminio Monforte, Antonella, Del Giacco, Sergio, Di Pietro, Massimo, Esposito, Roberto, Filice, Gaetano, Gavazzeni, Gabriella, Guaraldi, Giovanni, Indiveri, Francesco, Lazzarin, Adriano, Mazzotta, Francesco, Minolli, Lorenzo, Montroni, Maria, Moroni, Mauro, Nozza, Silvia, Pastor, Guiseppe, Poli, Guido, Raise, Enzo, Romagnani, Sergio, Rusconi, Vega, Sacchi, Paolo, Suter, Fredy, Tambussi, Giuseppe, Tirelli, Umberto, Fraser, Helen, Iwamoto, Aikichi, Kikuchi, Yoshida, Mori, Masahiko, Nakamura, Tetsuya, Odawara, Takashi, Oka, Shinichi, Shirasaka, Takuma, Takano, Misao, To, Junichiro, Ueta, Chisato, El Filali, Kamal, Erradey, Ikbale, Himmich, Hakima, Blok, W., Borleffs, J., Bravenboer, B., Bronveld, W., Claessen, F., Duurvoort, Maurice, Ferwerda, J., Frissen, P., Hulshoff, Nicolette, Juttman, Job, Kauffmann, R., Koopmans, P., Kroon, F., Lowe, Selwyn, Leemhuis, M., Meenhorst, P., Boer, Lieselotte Posthuma, Reiss, Peter, Reinders-Folmer, S., Richter, C., Santegoets, Rick, Schoemaker, Marijke, Schrey, G., Sprenger, Herman, Ten Veen, Jacob, Tessalaar, Judith, Ende, M., Vall, H., Eeden, Arne, Leeuwen, Remko, Vermeulen, Joost, Ten Kate, Reinier W., Boxtel, Renee, Eden, Arne, Ven, Bernadette, Meulen, Piet, Ten Napei, C., Vriesendrop, R., Bruun, Johann, Bakowska, Elzbieta, Beniowski, Marek, Boron-Kaczmarska, Anna, Gasiorowski, Jacek, Gxadysz, Andrzej, Horban, Andrzej, Knysz, Brygida, Mularska, Elzbieta, Pynka, Magdelena, Szymczak, Aleksandra, Aldir, Isabel, Doroana, Manuela, Duque, Luis, Mansinho, Kamal, Pinto, Inez, Valadas, Emilia, Vera, Jose, Foo, Estelle, Panchalingham, Anushia, Lim, Poh Lian, Paton, Nick, Peperstraete, Bernard, Quek, Angela, Alcazar-Caballero, Rosario, Arrizabalaga, Julio, Bouza, Emilio, Cepeda, Concepcion, Barron, Xabier, Cervero Jimenez, Miguel, Clotet, Bonaventura, Cortes, Luis, Domingo, Pere, Fernandez, Pompeyo, Fernandez-Cruz, Eduardo, Fuster, Montserrat, Gatell, Jose, Gijon, Paloma, Gil, Ignacio, Gonzales-Lahoz, Juan, Gonzalez, Alicia, Hernandez, Manuel, Iribarren, Jose, Jimenez, Miguel, Knobel, Hernando, Leon, Agathe, Carlos Lopez, Juan, Lozano, Angeles, Lopez, Paco, Moreno, Jose, Munoz, Rosa, Padilla, Belen, Parras, Angeles, Pastor, Antoni, Pedreira, Jose, Pristo, Julio, Pena, Jose, Roca, Victor, Rubio, Rafael, Sanchez Rivera, Jose, Sanz, Jesus, Tamargo, Lara, Torres, Rafael, Pehrson, Pehr O., Sandstrom, Eric, Bernasconi, Enos, Gurtner, Vanina, Magenta, Lorenzo, Ampunpong, Uangarun, Bowonwatnuwong, Chureeratana, Chanchai, Patimoaporn, Chetchotisakd, Ploenchan, Chuenyam, Thesinee, Duncombe, Chris, Horsakulthai, Mannassinee, Kantipong, Pacharee, Liddy, John, Phanuphak, Praphan, Pongsurachet, Vithaya, Seekaew, Samroeng, Sonjai, Areerat, Subsri, Nuramon, Suwanagool, Surapol, Techasathit, Wichai, Wankoon, Jaturaporn, Adebiyi, Aderonke, Aldam, Diana, Alexander, Ian, Angus, Brian, Barber, Tristan, Bonnington, Sue, Care, Chris, Carroll, Anne, Cornforth, David, Donaldson, Oscar, Druiff, Laurance, Easterbrook, Philippa, Edwards, Beverley, Ellis, Chris, Fisher, Martin, Fox, Ray, Harrison, Allan, Herman, Sandra, Heald, Lisa, Higgs, Christopher, Jendrulek, Isabelle, Johnson, Margaret, Judges, Lucy, Karim, Fatimah, Kinghorn, George, Laurenti, Julie, Lee, Christine, Leen, Clifford, Legg, Ken, Maw, Raymond, Macconachie, Alisdair, Mckernan, Sinead, Mclean, Lorna, Mcmillan, Andrew, Mguni, Sifiso, Morris, Sheila, Mulchay, Fiona, Mullan, Dee, Mullaney, Scott, Murphy, Maurice, Nunn, Andrew, Ong, Edmund, Owen, Maxine, Palfreeman, Adrian, Perry, Nicky, Peters, Barry, Pozniak, Anton, Ronan, Agnes, Skinner, Cecilia, Stroud, Carol, Takawira, Martin, Tamm, Norbert, Thomas, Rachel, Yee, Thynn Thynn, Vanthuyne, An, Wansborough-Jones, Mark, Weber, Jonathan, White, David, Wilkins, Ed, Wiselka, Martin, Williams, Ian, Waugh, Mike, Wotherspoon, Joyce, Youle, Mike, Doyle, Margaret, Goodwin, Edward, Luskin-Hawk, Roberta, Sullivan, James, Verheggen, Rita, Abrams, Donald, Baxter, John, Besch, C. Lynn, Child, Carroll, Cohn, David, Cooper, Pam, El-Sadr, Wafaa, Farrough, Martha, Fisher, Evelyn, Fuentes, Luis, Gordin, Fred, Graeber, Carol, Kelly, Mary Ellen, Kostman, Jay, Lattanzi, Kelly, Macarthur, Rodger, Makohon, Linda, Markowitz, Norman P., Martinez, Norma, Mastro-Polak, Diane, Mitchell, Vinnie, Mushatt, David, Patterson, Kathryn, Perez, George, Rosmarin, Corey, Rouff, Jack R., Saldanha, Jennifer, Sampson, James, Sawyer, Robert, Standridge, Barbara, Sweeton, Bentley, Tedaldi, Ellen, Thompson, Melanie, Valencia, Patricia, Verlinghieri, Gwen, Walker, Janice, Watson, Vicky, Williams, Bruce, Armstrong, Adam, Banks, Susan, Blazes, David, Barile, Anthony, Coelho, Linda, Dennis, Marilyn, Flaks, Hannah, Gilcrest, Joyce, Gittens, Kathleen, Hopper, Shelia, Humphries, M. J., Spooner, Katherine, Tamminga, Cindy L., Vita, Jean, Wegner, Scott A., Wortmann, Glenn, Bisby, Nicole, Blake, William, Brown, Sheldon, Chilliade, Phillippe, Cole, Teresa, Elliot, Katherine, Geisler, Christiane, Goetz, Matthew, Gomez-Perez, Elizabeth, Helman, Jami, Nahass, Ronald, Leflore, Dirk, Marston, Barbara, Obregon, Maria, Petrolati, Jennifer, Pitrak, David L., Roland, Robert, Rosa, Carol, Rossman, Barbara, Schlueter Wirtz, Susan, Schuck, Suzanne, Scretchings, Tiffany, Simon, Gary, Smith, Mack, Summers, Kimberley, Werhane, Mary Jo, Arduino, Roberto, Bell, Brian, Breaux, Katherine, Cuervo, Hilda, Hale, Carl, Lewis, Stanley, Mall, Mark, Mora, Fransisco, Diez, Martine M., Okhuysen, Pablo, Rodriguez-Barradas, Maria, Schrader, Shannon R., Healy, Lynn, Kaszubski, Chris, Kolber, Michael, Tanner, Tom, Armstrong, Joann, Dahlke, Jennifer, Johnson, Leonard, Kaminski, Patricia, Rhame, Frank, Shoden, Cheryl, Temesgen, Zelalem, Urbanich, Marcy, Valenti, Sharon, Zervos, Marcus, Barrick, Bill, Chaitt, Doreen, Hahn, Barbara, Lane, Cliff, Martell, Dennis, Mcnay, Laura, Metcalf, Julia, Powers, April, Tavel, Jorge A., Loveless, Karen, Peterson, Sue, Sweek, Suzanne, Albrecht, Helmut, Antoine, Nicole, Pell, Paula, Gatell, Jose Maria, Hoy, Jenny, Lifson, Alan, Pederson, Court, Borup, Liselotte, Dragsted, Ulrik Bak, Greve, Anne Fau, Jensen, Karoline, Jens Lundgren, Mollerup, David, Pearson, Mary, Phillips, Andrew, Aboulhab, Jamila, Babiker, Abdel, Cordwell, Brooke, Darbyshire, Janet, Hack, Lisa, Hooker, Malcolm, Moraes, Yolanda, Newberry, Douglas, Nuwagaba-Biribonwoha, Harriet, Hooff, Fionna, Denning, Eileen, Holland Klemme, Leslie, Carey, Cate, Chan, Fonnie, Cooper, David, Courtney-Rodgers, David, Drummond, Fraser, Jacoby, Simone, Law, Matthew, Stewart, Morgan, Pett, Sarah, Alloo, Zarina, Bebchuk, Judy, Bollenbeck, Patty, Duchene, Alain G., Fosdick, Lisa, Harrison, Merrie, Krum, Eric, Larson, Gregg, Meger, Sue, Neaton, James, Nelson, Ray, Quan, Siu-Fun L., Schultz, Terri, Telke, Susan, Thackeray, Lisa, Thompson, Greg, Wentworth, Deborah, Wyman, Nicole, Duncan, William, Ferguson, Elaine, Fox, Lawrence, Gettinger, Nikki, Herrera, Janet, Luzar, Mary Anne, Maeshiro, Mieko, Martinez, Ana, Oseekey, Karen, Baigent, Greg, Capra, William, Duliege, Anne-Marie, Fitzgerald, Linda, Kwakkelstein, Marthin, Maral, Jean, O Hara, Mary, Sahner, David, Weber, Claire, Adam-Perchec, Christine, Barron, Nigel, Bell, Mary Louise, Dolan, Sandra, Eckstrand, Julie, Hicks, Steven, Mcauley, George, Beck, Sharon, Brown, Shawn, and Rupert, Adam
62. MAIL CALL.
- Author
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Scroggin, Elizabeth, Gourley, Jim, and Wegner, Scott
- Abstract
Several letters to the editor are presented in response to articles including an article about a girlfriend who broke off a relationship because of her partner's tri training, the issue on swimsuit featuring triathletes and an article about Amanda Beard, an icon of athleticism and feminine beauty.
- Published
- 2008
63. Neuronal modulation of hepatic lipid accumulation induced by bingelike drinking.
- Author
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Ibars M, Maier MT, Yulyaningsih E, Perez L, Cheang R, Vilhelmsson A, Louie SM, Wegner SA, Yuan X, Eltzschig HK, Hopf FW, Nomura DK, Koliwad SK, and Xu AW
- Subjects
- Agouti-Related Protein metabolism, Animals, Male, Mice, Binge Drinking metabolism, Fatty Liver, Alcoholic metabolism, Hypothalamus metabolism, Lipid Metabolism physiology, Liver metabolism, Neurons metabolism
- Abstract
Excessive alcohol consumption, including binge drinking, is a common cause of fatty liver disease. Binge drinking rapidly induces hepatic steatosis, an early step in the pathogenesis of chronic liver injury. Despite its prevalence, the process by which excessive alcohol consumption promotes hepatic lipid accumulation remains unclear. Alcohol exerts potent effects on the brain, including hypothalamic neurons crucial for metabolic regulation. However, whether or not the brain plays a role in alcohol-induced hepatic steatosis is unknown. In the brain, alcohol increases extracellular levels of adenosine, a potent neuromodulator, and previous work implicates adenosine signaling as being important for the development of alcoholic fatty liver disease. Acute alcohol exposure also increases both the activity of agouti-related protein (AgRP)-expressing neurons and AgRP immunoreactivity. Here, we show that adenosine receptor A
2B signaling in the brain modulates the extent of alcohol-induced fatty liver in mice and that both the AgRP neuropeptide and the sympathetic nervous system are indispensable for hepatic steatosis induced by bingelike alcohol consumption. Together, these results indicate that the brain plays an integral role in alcohol-induced hepatic lipid accumulation and that central adenosine signaling, hypothalamic AgRP, and the sympathetic nervous system are crucial mediators of this process.- Published
- 2020
- Full Text
- View/download PDF
64. Increasing age at HIV seroconversion from 18 to 40 years is associated with favorable virologic and immunologic responses to HAART.
- Author
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Weintrob AC, Fieberg AM, Agan BK, Ganesan A, Crum-Cianflone NF, Marconi VC, Roediger M, Fraser SL, Wegner SA, and Wortmann GW
- Subjects
- Acquired Immunodeficiency Syndrome epidemiology, Adolescent, Adult, Age Factors, CD4 Lymphocyte Count, Disease Progression, HIV Seropositivity immunology, HIV Seropositivity virology, Humans, Middle Aged, Viral Load, Antiretroviral Therapy, Highly Active, HIV Seropositivity drug therapy
- Abstract
Background: Studies evaluating the effect of age on response to highly active antiretroviral therapy (HAART) have been limited by their inability to control for duration of human immunodeficiency virus (HIV) infection. We examined the effect of age at HIV seroconversion on response to HAART., Methods: A retrospective analysis of a longitudinal US military cohort of HIV-infected subjects. Time to and maintenance of viral suppression, rate of CD4 cell increase, and rate of progression to acquired immunodeficiency syndrome or death were compared across age groups using time-to-event methods., Results: Five hundred sixty-three HIV-infected adults who seroconverted after January 1, 1996, and started HAART were included. Increasing age at seroconversion was significantly associated with faster time to viral suppression (P = 0.002). Increasing age also correlated with duration of suppression, with a 35% reduction in risk of viral rebound for every 5-year increase in age above 18 years (hazard ratio: 0.65, 95% confidence interval 0.55 to 0.75). The rate of CD4 cell increase from 6 to 84 months post-HAART was significantly greater in those who seroconverted at older ages (P = 0.0002). Rates of progression to acquired immunodeficiency syndrome or death did not differ between groups., Conclusions: Increasing age at seroconversion was associated with shorter time to and longer maintenance of viral suppression and a faster increase in CD4 cell count.
- Published
- 2008
- Full Text
- View/download PDF
65. Lost in translation: implications of HIV-1 codon usage for immune escape and drug resistance.
- Author
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Kijak GH, Currier JR, Tovanabutra S, Cox JH, Michael NL, Wegner SA, Birx DL, and McCutchan FE
- Subjects
- Anti-HIV Agents pharmacology, Evolution, Molecular, HIV Infections virology, HIV-1 drug effects, HIV-1 immunology, Humans, Mutation, Codon genetics, Drug Resistance, Viral genetics, HIV Infections immunology, HIV-1 genetics, Protein Biosynthesis
- Abstract
Synonymous nucleotide substitutions in protein-coding sequences are often regarded as evolutionarily neutral and not subject to selective pressure. However, synonymous codons can sometimes lead to different patterns of amino acid substitution by single nucleotide changes. Based on the deconstruction of the standard genetic code, we propose the term 'quasi-synonymous' to describe codons that specify the same amino acid, but lie on different mutational pathways, and we show that in at least one rapidly evolving organism, HIV-1, quasi-synonymy plays a role in its evolution. We present concrete examples that demonstrate the relevance of codon usage in the development of antiretroviral-drug resistance. In the case of the host immune response, the data indicates that viral evasion is achieved through use of codons that lie on the direct path to escape mutants, and equally, permit rapid reversion to wild-type in the absence of these selective pressures. Quasi-synonymy conditions HIV-1 and, potentially, other rapidly evolving organisms in their exploration of the mutational space.
- Published
- 2004
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