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Evolution of severe acute respiratory coronavirus virus 2 (SARS-CoV-2) seroprevalence among employees of a US academic children’s hospital during coronavirus disease 2019 (COVID-19) pandemic
- Part of
- Brian T. Fisher, Anna Sharova, Craig L. K. Boge, Sigrid Gouma, Audrey Kamrin, Jesse Blumenstock, Sydney Shuster, Lauren Gianchetti, Danielle Collins, Elikplim Akaho, Madison E. Weirick, Christopher M. McAllister, Marcus J. Bolton, Claudia P. Arevalo, Eileen C. Goodwin, Elizabeth M. Anderson, Shannon R. Christensen, Fran Balamuth, Audrey R. Odom John, Yun Li, Susan Coffin, Jeffrey S. Gerber, Scott E. Hensley
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- Journal:
- Infection Control & Hospital Epidemiology / Volume 43 / Issue 11 / November 2022
- Published online by Cambridge University Press:
- 02 December 2021, pp. 1647-1655
- Print publication:
- November 2022
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Objective:
To describe the cumulative seroprevalence of severe acute respiratory coronavirus virus 2 (SARS-CoV-2) antibodies during the coronavirus disease 2019 (COVID-19) pandemic among employees of a large pediatric healthcare system.
Design, setting, and participants:Prospective observational cohort study open to adult employees at the Children’s Hospital of Philadelphia, conducted April 20–December 17, 2020.
Methods:Employees were recruited starting with high-risk exposure groups, utilizing e-mails, flyers, and announcements at virtual town hall meetings. At baseline, 1 month, 2 months, and 6 months, participants reported occupational and community exposures and gave a blood sample for SARS-CoV-2 antibody measurement by enzyme-linked immunosorbent assays (ELISAs). A post hoc Cox proportional hazards regression model was performed to identify factors associated with increased risk for seropositivity.
Results:In total, 1,740 employees were enrolled. At 6 months, the cumulative seroprevalence was 5.3%, which was below estimated community point seroprevalence. Seroprevalence was 5.8% among employees who provided direct care and was 3.4% among employees who did not perform direct patient care. Most participants who were seropositive at baseline remained positive at follow-up assessments. In a post hoc analysis, direct patient care (hazard ratio [HR], 1.95; 95% confidence interval [CI], 1.03–3.68), Black race (HR, 2.70; 95% CI, 1.24–5.87), and exposure to a confirmed case in a nonhealthcare setting (HR, 4.32; 95% CI, 2.71–6.88) were associated with statistically significant increased risk for seropositivity.
Conclusions:Employee SARS-CoV-2 seroprevalence rates remained below the point-prevalence rates of the surrounding community. Provision of direct patient care, Black race, and exposure to a confirmed case in a nonhealthcare setting conferred increased risk. These data can inform occupational protection measures to maximize protection of employees within the workplace during future COVID-19 waves or other epidemics.
Tobacco Cessation in Economically Disadvantaged Dominican Republic Communities: Who are the Ex-Users?
- Deborah J. Ossip, Zahíra Quiñones, Sergio Diaz, Kelly Thevenet-Morrison, Susan Fisher, Heather Holderness, Xeuya Cai, Scott McIntosh, Ann Dozier, Nancy Chin, Emily Weber, Jose Javier Sanchez, Arisleyda Bautista, Héctor Almonte
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- Journal:
- Journal of Smoking Cessation / Volume 11 / Issue 4 / December 2016
- Published online by Cambridge University Press:
- 20 February 2015, pp. 239-249
- Print publication:
- December 2016
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Introduction: Tobacco use and its harm continue to increase in low and middle income countries (LMICs) globally. Smoking cessation is the most effective means of reducing morbidity and mortality from tobacco use. Increasing the prevalence of ex-users is an indicator of population cessation.
Aims: This study provides the first examination of factors associated with ex-tobacco use status in the Dominican Republic (DR), a LMIC in the Latin America and Caribbean region.
Methods: Baseline surveillance was conducted for 1,177 randomly selected households in seven economically disadvantaged DR communities (total N = 2,680 adult household members).
Results: Ex-user prevalence was 10.6% (1.0%–18.5% across communities), 14.8% were current users (9.1–20.4), and quit ratios were 41.7% (9.7%–52.7%). Among ever users, females (OR 2.02, 95% CI 1.41, 2.90), older adults (45–64: OR 1.75, 95% CI 1.12, 2.74; 65+: OR 2.09, 95% CI 1.29, 3.39), and those who could read/write (OR 1.64, 95% CI 1.08, 2.50), had health conditions (OR 1.63, 95% CI 1.11, 2.41), and lived with ex-users (OR 1.70, 95% CI 1.12, 2.58) were over 60% to two times as likely to be ex-users. Those from remote communities (OR 0.52, 95% CI 0.36, 0.74), using chewed tobacco (OR 0.14, 95% CI 0.04, 0.48) and living with tobacco users (OR 0.55, 95% CI 0.37, 0.81) were less likely to be ex-users.
Conclusions: Ex-user prevalence and quit ratios were lower than for high income countries. Implementing broad tobacco control measures, combined with clinically targeting vulnerable groups, may increase tobacco cessation to most effectively reduce this public health crisis.
The effects of direct and indirect road transport consignment in combination with feed withdrawal in young dairy calves
- Andrew D Fisher, Bronwyn H Stevens, Melanie J Conley, Ellen C Jongman, Mariko C Lauber, Susan J Hides, Garry A Anderson, David M Duganzich, Peter D Mansell
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- Journal:
- Journal of Dairy Research / Volume 81 / Issue 3 / August 2014
- Published online by Cambridge University Press:
- 28 May 2014, pp. 297-303
- Print publication:
- August 2014
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Male dairy calves may be transported from their farm of origin at a young age. This process may involve an extended period off feed and indirect consignment through an intermediate facility, prompting potential welfare concerns. To assess the impact of transport, 59 male Holstein-Friesian dairy calves (5–9 d old) were either (1) held in situ on farm (control); (2) transported for 6 h; (3) transported for 12 h; or (4) transported for 1 h to a holding facility where they were kept for 6 h and then transported for 5 h. All treatments included a 30-h period of feed (milk) withdrawal, and calf responses were measured over time from before their last feed until the completion of the study after the transport and feed withdrawal periods. Apart from increases in serum creatine kinase in calves transported for 12 h, transported calves generally did not differ in blood concentrations of glucose, beta-hydroxybutyrate, lactate, total protein or in packed cell volume, compared with controls (P>0·05). Calf responses to the indirect consignment treatment did not differ from those of other transported calves. Withdrawal of feed for 30 h caused calves to lose 6% of body weight; blood glucose varied from 3·96 mmol/l immediately before daily feeding to 5·46 mmol/l at 3 h post feeding, and then declined to 3·43 mmol/l at 30 h. Calves lay down for 22–32% of the time during transport, and did not show a rebound effect in lying behaviour post arrival in comparison with controls. Best practice transport of 6–12 h duration, including indirect consignment via a holding facility, did not significantly affect calf blood biochemistry and metabolism in comparison with untransported animals. However, extending the time off feed beyond the daily feeding interval resulted in reduced blood glucose concentrations, suggesting that time off feed needs to be carefully managed in young transported dairy calves.
Contributors
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- By Syed S. Ali, Nathan Allen, John E. Arbo, Elizabeth Arrington, Ani Aydin, Kenneth R. L. Bernard, Amy Caggiula, Nolan Caldwell, Jennifer L. Carey, Jennifer Carnell, Jayaram Chelluri, Michael N. Cocchi, Cristal Cristia, Vishal Demla, Bram Dolcourt, Andrew Eyre, Shawn Fagan, Brandy Ferguson, Sarah Fisher, Jonathan Friedstat, Brian C. Geyer, Brandon Godbout, Jeremy Gonda, Jeremy Goverman, Ashley L. Greiner, Casey Grover, Carla Haack, Abigail Hankin, John W. Hardin, Katrina L. Harper, Gregory Hayward, Stephen Hendriksen, Daniel Herbert-Cohen, Nadine Himelfarb, Calvin E. Hwang, Jacob D. Isserman, Joshua Jauregui, Joshua W. Joseph, Elena Kapilevich, Feras H. Khan, Sarvotham Kini, Karen A. Kinnaman, Ruth Lamm, Calvin Lee, Jarone Lee, Charles Lei, John Lemos, Daniel J. Lepp, Elisabeth Lessenich, Brandon Maughan, Julie Mayglothling, Kevin McConnell, Laura Medford-Davis, Kamal Medlej, Heather Meissen, Payal Modi, Joel Moll, Jolene H. Nakao, Matthew Nicholls, Lindsay Oelze, Carolyn Maher Overman, Viral Patel, Timothy C. Peck, Jeffrey Pepin, Candace Pettigrew, Byron Pitts, Zubaid Rafique, Chanu Rhee, Jonathan C. Roberts, Daniel Rolston, Steven C. Rougas, Benjamin Schnapp, Kathryn A. Seal, Raghu Seethala, Todd A. Seigel, Navdeep Sekhon, Kaushal Shah, Robert L. Sherwin, Kirill Shishlov, Ashley Shreves, Sebastian Siadecki, Jeffrey N. Siegelman, Liza Gonen Smith, Ted Stettner, Marie Carmelle Tabuteau, Joseph E. Tonna, N. Seth Trueger, Chad Van Ginkel, Bina Vasantharam, Graham Walker, Susan Wilcox, Sandra J. Williams, Matthew L. Wong, Nelson Wong, Samantha Wood, John Woodruff, Benjamin Zabar
- Edited by Kaushal Shah, Jarone Lee, Kamal Medlej, American University of Beirut, Scott D. Weingart
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- Book:
- Practical Emergency Resuscitation and Critical Care
- Published online:
- 05 November 2013
- Print publication:
- 24 October 2013, pp xi-xx
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- By André Aleman, Narmeen Ammari, Alan Anticevic, Deanna M. Barch, Christopher R. Bowie, Katherine E. Burdick, Sara J. Czaja, Anthony S. David, Colin A. Depp, Dwight Dickinson, Gary Donohoe, Melissa Fisher, Benjamin Glicksberg, Michael F. Green, Maya Gupta, Philip D. Harvey, R. Walter Heinrichs, Katherine Holshausen, William P. Horan, Daniel C. Javitt, Richard Keefe, John H. Krystal, David Loewenstein, Susan R. McGurk, Kristopher I. Mathis, Brent Mausbach, Ashley A. Miles, Kim T. Mueser, Eva Muharib, Robin Murray, Akshay Nair, Rogerio Panizzutti, Thomas Patterson, Amy E. Pinkham, Abraham Reichenberg, Manuela Russo, Jonathan Schaefer, Karuna Subramaniam, Laura Vergel de Dios, Sophia Vinogradov, Daniel R. Weinberger, Jonathan K. Wynn
- Edited by Philip D. Harvey, University of Miami
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- Book:
- Cognitive Impairment in Schizophrenia
- Published online:
- 05 February 2013
- Print publication:
- 24 January 2013, pp vii-x
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- By J. Todd Arnedt, Nazem Atassi, Judith Bebchuk, Devin L. Brown, Rickey E. Carter, Rick Chappell, William R. Clarke, Christopher S. Coffey, Peter G. Como, Merit Cudkowicz, Jeffrey Cummings, Gary R. Cutter, Gerald J. Dal Pan, E. Ray Dorsey, Susan S. Ellenberg, Jordan Elm, Changyong Feng, Elizabeth Fisher, Jacqueline A. French, Jean-Michel Germain, Joshua D. Grill, Robert G. Holloway, Karen C. Johnston, S. Claiborne Johnston, Cornelia L. Kamp, Russell Katz, Kathryn M. Kellogg, Karl Kieburtz, Scott Y. H. Kim, Jonathan Kimmelman, Bruce Levin, Michael P. McDermott, Eric A. Mann, John Markman, D. Troy Morgan, Gilmore N. O’Neill, Yuko Y. Palesch, John R. Pollard, R. Michael Poole, Mary E. Putt, Bemard Ravina, Richard A. Rudick, David Schoenfeld, Andrew D. Siderowf, Janet Wittes, Robert F. Woolson, Michael E. Yurcheshen
- Edited by Bernard Ravina, Jeffrey Cummings, Michael McDermott, R. Michael Poole
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- Book:
- Clinical Trials in Neurology
- Published online:
- 05 May 2012
- Print publication:
- 12 April 2012, pp ix-xii
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- By Phillip L. Ackerman, Soon Ang, Susan M. Barnett, G. David Batty, Anna S. Beninger, Jillian Brass, Meghan M. Burke, Nancy Cantor, Priyanka B. Carr, David R. Caruso, Stephen J. Ceci, Lillia Cherkasskiy, Joanna Christodoulou, Andrew R. A. Conway, Christine E. Daley, Janet E. Davidson, Jim Davies, Katie Davis, Ian J. Deary, Colin G. DeYoung, Ron Dumont, Carol S. Dweck, Linn Van Dyne, Pascale M. J. Engel de Abreu, Joseph F. Fagan, David Henry Feldman, Kurt W. Fischer, Marisa H. Fisher, James R. Flynn, Liane Gabora, Howard Gardner, Glenn Geher, Sarah J. Getz, Judith Glück, Ashok K. Goel, Megan M. Griffin, Elena L. Grigorenko, Richard J. Haier, Diane F. Halpern, Christopher Hertzog, Robert M. Hodapp, Earl Hunt, Alan S. Kaufman, James C. Kaufman, Scott Barry Kaufman, Iris A. Kemp, John F. Kihlstrom, Joni M. Lakin, Christina S. Lee, David F. Lohman, N. J. Mackintosh, Brooke Macnamara, Samuel D. Mandelman, John D. Mayer, Richard E. Mayer, Martha J. Morelock, Ted Nettelbeck, Raymond S. Nickerson, Weihua Niu, Anthony J. Onwuegbuzie, Jonathan A. Plucker, Sally M. Reis, Joseph S. Renzulli, Heiner Rindermann, L. Todd Rose, Anne Russon, Peter Salovey, Scott Seider, Ellen L. Short, Keith E. Stanovich, Ursula M. Staudinger, Robert J. Sternberg, Carli A. Straight, Lisa A. Suzuki, Mei Ling Tan, Maggie E. Toplak, Susana Urbina, Richard K. Wagner, Richard F. West, Wendy M. Williams, John O. Willis, Thomas R. Zentall
- Edited by Robert J. Sternberg, Oklahoma State University, Scott Barry Kaufman, New York University
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- Book:
- The Cambridge Handbook of Intelligence
- Published online:
- 05 June 2012
- Print publication:
- 30 May 2011, pp xi-xiv
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- By Jon G. Allen, Robert F Anda, Susan L. Andersen, Carl M. Anderson, Wendy d’ Andrea, Tal Astrachan, Anthony W. Bateman, Carla Bernardes, Renato Borgatti, Bekh Bradley, J. Douglas Bremner, John Briere, Amy F. Buckley, Jean-Francois Bureau, Kathleen M. Chard, Dennis Charney, Anthony Charuvastra, Jeewook Choi, Marylene Cloitre, Melody D. Combs, Constance J. Dalenberg, Martin J. Dorahy, Michael D. De Bellis, Anne P. DePrince, Erin C. Dunn, Vincent J. Felitti, Philip A. Fisher, Peter Fonagy, Julian D. Ford, Amit Goldenberg, Megan R. Gunnar, Udi Harari, Felicia Heidenreich, Christine Heim, Judith Herman MD, Monica Hodges, Shlomit Jacobson-Pick, Joan Kaufman, Karestan C. Koenen, Ruth A. Lanius, Jamie L. LaPrairie, Alicia F. Lieberman, Richard J. Loewenstein, Sonia J. Lupien MD, Karlen Lyons-Ruth, Jodi Martin, Bruce McEwen, Alexander C. McFarlane, Rosario Montirosso, Charles B. Nemeroff, Pat Ogden, Fatih Ozbay, Clare Pain, Kelsey Paulson, Oxana G. Palesh, Ms. Keren Rabi, Gal Richter-Levin, Andrea L. Roberts, Cécile Rousseau, Cécile Rousseau, Monica Ruiz-Casares, Christian Schmahl, Allan N. Schore, Sally B. Seraphin, Vansh Sharma, Yi-Shin Sheu, Kelly Skelton, Steven Southwick, David Spiegel, Deborah M. Stone, Nathan Szajnberg, Martin H. Teicher, Akemi Tomoda, Ed Tronick, Onno van der Hart, Bessel van der Kolk, Eric Vermetten, Tamara Weiss, Victor Welzant
- Edited by Ruth A. Lanius, University of Western Ontario, Eric Vermetten, Universiteit Utrecht, The Netherlands, Clare Pain, University of Toronto
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- Book:
- The Impact of Early Life Trauma on Health and Disease
- Published online:
- 03 May 2011
- Print publication:
- 05 August 2010, pp vii-xii
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45 - HCMV: persistence in the population: potential transplacental transmission
- from Part III - Pathogenesis, clinical disease, host response, and epidemiology: HCMV
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- By Lenore Pereira, Departments of Cell and Tissue Biology, Anatomy, Pharmaceutical Chemistry, and the Biomedical Sciences Graduate Program, and the Oral Biology Graduate Program, University of California San Francisco, CA, USA, Ekaterina Maidji, Departments of Cell and Tissue Biology, Anatomy, Pharmaceutical Chemistry, and the Biomedical Sciences Graduate Program, and the Oral Biology Graduate Program, University of California San Francisco, CA, USA, Susan J. Fisher, Departments of Cell and Tissue Biology, Anatomy, Pharmaceutical Chemistry, and the Biomedical Sciences Graduate Program, and the Oral Biology Graduate Program, University of California San Francisco, CA, USA, Susan McDonagh, Departments of Cell and Tissue Biology, Anatomy, Pharmaceutical Chemistry, and the Biomedical Sciences Graduate Program, and the Oral Biology Graduate Program, University of California San Francisco, CA, USA, Takako Tabata, Departments of Cell and Tissue Biology, Anatomy, Pharmaceutical Chemistry, and the Biomedical Sciences Graduate Program, and the Oral Biology Graduate Program, University of California San Francisco, CA, USA
- Edited by Ann Arvin, Stanford University, California, Gabriella Campadelli-Fiume, Università degli Studi, Bologna, Italy, Edward Mocarski, Emory University, Atlanta, Patrick S. Moore, University of Pittsburgh, Bernard Roizman, University of Chicago, Richard Whitley, University of Alabama, Birmingham, Koichi Yamanishi, University of Osaka, Japan
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- Book:
- Human Herpesviruses
- Published online:
- 24 December 2009
- Print publication:
- 16 August 2007, pp 814-830
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Summary
Congenital cytomegalovirus infection and the placenta
Congenital CMV infection
Human cytomegalovirus (CMV) is a ubiquitous virus that causes asymptomatic infections in healthy individuals (for review see Pass, 2001). Because breast feeding (Stagno et al., 1980), exposure to young children (Pass et al., 1987) and sexual contact (Fowler and Pass, 1991) are major risk factors for infection, most adults are seropositive. Diverse organs and specialized cells, including polarized epithelial cells (Tugizov et al., 1996) and endothelial cells (Fish et al., 1998; Maidji et al., 2002), are susceptible to CMV infection. CMV establishes latent infection in granulocyte-macrophage progenitors (Kondo et al., 1996) and reactivates upon cellular differentiation (Hahn et al., 1998; Soderberg-Naucler et al., 1997). Congenital CMV infection is estimated to affect 1 to 3% of infants in the United States annually and remains an important public health problem causing significant morbidity and mortality (for review see Britt, 1999).
It has long been appreciated that maternal neutralizing antibodies reduce the risk of symptomatic congenital disease in the fetus (Ahlfors et al., 1984; Boppana and Britt, 1995; Fowler et al., 2003; Stagno et al., 1982). The importance of adaptive immunity to CMV is apparent in women with primary infection, often with low-avidity neutralizing antibodies (Boppana and Britt, 1995; Lazzarotto et al., 1998; Revello et al., 2002). Approximately 15% of these women spontaneously abort in early gestation (Griffiths and Baboonian, 1984).
Contributors
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- By Graham Allan, Donna M. Allen, Irwin Altman, Arthur Aron, Donald H. Baucom, Steven R. H. Beach, Ellen Berscheid, Rosemary Blieszner, Jeffrey Boase, Tyfany M. J. Boettcher, Barbara B. Brown, Abraham P. Buunk, Lorne Campbell, Daniel J. Canary, Rodney Cate, John P. Caughlin, Mahnaz Charania, Jennie Y. Chen, F. Scott Christopher, Jennifer A. Clarke, Marilyn Coleman, W. Andrew Collins, Michael K. Coolsen, Nathan R. Cottle, Carolyn E. Cutrona, Marianne Dainton, Valerian J. Derlega, Lisa M. Diamond, Pieternel Dijkstra, Steve Duck, Pearl A. Dykstra, Norman B. Epstein, Beverley Fehr, Frank D. Fincham, Helen E. Fisher, Julie Fitness, Garth J. O. Fletcher, Myron D. Friesen, Lawrence Ganong, Kelli A. Gardner, Jenny de Jong Gierveld, Robin Goodwin, Christine R. Gray, Kathryn Greene, David W. Harris, Willard W. Hartup, John H. Harvey, Kathi L. Heffner, Ted L. Huston, William J. Ickes, Emily A. Impett, Michael P. Johnson, Deborah J. Jones, Deborah A. Kashy, Janice K. Kiecolt‐Glaser, Jeffrey L. Kirchner, Brighid M. Kleinman, Galena H. Kline, Mark L. Knapp, Ascan Koerner, Jean‐Philippe Laurenceau, Kim Leon, Timothy J. Loving, Stephanie D. Madsen, Howard J. Markman, Alicia Mathews, Mario Mikulincer, Patricia Noller, Nickola C. Overall, Letitia Anne Peplau, Daniel Perlman, Sally Planalp, Urmila Pillay, Nicole D. Pleasant, Caryl E. Rusbult, Barbara R. Sarason, Irwin G. Sarason, Phillip R. Shaver, Alan L. Sillars, Jeffry A. Simpson, Susan Sprecher, Susan Stanton, Greg Strong, Catherine A. Surra, Anita L. Vangelisti, C. Arthur VanLear, Theo van Tilburg, Barry Wellman, Amy Wenzel, Carol M. Werner, Adam R. West, Sarah W. Whitton, Heike A. Winterheld
- Edited by Anita L. Vangelisti, University of Texas, Austin, Daniel Perlman, University of British Columbia, Vancouver
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- Book:
- The Cambridge Handbook of Personal Relationships
- Published online:
- 05 June 2012
- Print publication:
- 05 June 2006, pp xvii-xxii
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7 - Implantation is a sticky situation
- from General discussion I
- Edited by Ashley Moffett, University of Cambridge, Charlie Loke, University of Cambridge, Anne McLaren, Cancer Research, UK
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- Biology and Pathology of Trophoblast
- Published online:
- 07 August 2009
- Print publication:
- 04 May 2006, pp 132-147
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Summary
Abstract. For many reasons the implantation process has been extraordinarily difficult to study. The molecules that orchestrate this highly specialised event are likely localised to the interacting surfaces of only a few embryonic and maternal cells. Additionally, their expression, which is precisely timed, may also be transient. Therefore, much of what we know about this process at a molecular level, such as the importance of leukaemia inhibitory factor (LIF), is a by-product of studying mutant mice that were generated for other purposes. In other cases, the ‘candidate molecule’ approach has been fruitful, as exemplified by recently published evidence that L-selectin and its carbohydrate ligands are involved in the initial stages of implantation. In this review we discuss the current body of knowledge regarding L-selectin functions, which prompted experiments to examine expression of this receptor and its specialised carbohydrate ligands during implantation and the early stages of placentation. The results highlight the amazing plasticity of trophoblast cells that have co-opted portions of vascular and leukocyte differentiation programmes. The challenge now is to use our knowledge of the trophoblast L-selectin adhesion system to benefit women who fail to conceive due to defects in the implantation process.
Introduction
After fertilization, the next major hurdle for human reproduction is trophoblast differentiation, which is required for implantation, followed in lockstep by rapid assembly of these embryonic cells into a functional placenta.
Management of Outbreaks of Methicillin-Resistant Staphylococcus aureus Infection in the Neonatal Intensive Care Unit: A Consensus Statement
- Susan I. Gerber, Roderick C. Jones, Mary V. Scott, Joel S. Price, Mark S. Dworkin, Mala B. Filippell, Terri Rearick, Stacy L. Pur, James B. McAuley, Mary Alice Lavin, Sharon F. Welbel, Sylvia Garcia-Houchins, Judith L. Bova, Stephen G. Weber, Paul M. Arnow, Janet A. Englund, Patrick J. Gavin, Adrienne G. Fisher, Richard B. Thomson, Thomas Vescio, Teresa Chou, Daniel C. Johnson, Mary Beth Fry, Anne H. Molloy, Laura Bardowski, Gary A. Noskin
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- Journal:
- Infection Control & Hospital Epidemiology / Volume 27 / Issue 2 / February 2006
- Published online by Cambridge University Press:
- 21 June 2016, pp. 139-145
- Print publication:
- February 2006
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Objective.
In 2002, the Chicago Department of Public Health (CDPH; Chicago, Illinois) convened the Chicago-Area Neonatal MRSA Working Group (CANMWG) to discuss and compare approaches aimed at control of methicillin-resistant Staphylococcus aureus (MRSA) in neonatal intensive care units (NICUs). To better understand these issues on a regional level, the CDPH and the Evanston Department of Health and Human Services (EDHHS; Evanston, Illinois) began an investigation.
Design.Survey to collect demographic, clinical, microbiologic, and epidemiologic data on individual cases and clusters of MRSA infection; an additional survey collected data on infection control practices.
Setting.Level III NICUs at Chicago-area hospitals.
Participants.Neonates and healthcare workers associated with the level III NICUs.
Methods.From June 2001 through September 2002, the participating hospitals reported all clusters of MRSA infection in their respective level III NICUs to the CDPH and the EDHHS.
Results.Thirteen clusters of MRSA infection were detected in level III NICUs, and 149 MRSA-positive infants were reported. Infection control surveys showed that hospitals took different approaches for controlling MRSA colonization and infection in NICUs.
Conclusion.The CANMWG developed recommendations for the prevention and control of MRSA colonization and infection in the NICU and agreed that recommendations should expand to include future data generated by further studies. Continuing partnerships between hospital infection control personnel and public health professionals will be crucial in honing appropriate guidelines for effective approaches to the management and control of MRSA colonization and infection in NICUs.
Human pregnancy: the role of chemokine networks at the fetal–maternal interface
- Kristy Red-Horse, Penelope M. Drake, Susan J. Fisher
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- Journal:
- Expert Reviews in Molecular Medicine / Volume 6 / Issue 11 / 10 May 2004
- Published online by Cambridge University Press:
- 07 May 2004, pp. 1-14
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Chemokines are multifunctional molecules initially described as having a role in leukocyte trafficking and later found to participate in developmental processes such as differentiation and directed migration. Similar events occur in pregnancy during development of the fetal–maternal interface, where there is extensive leukocyte trafficking and tissue morphogenesis, and this is accompanied by abundant chemokine expression. The relationship between chemokines, leukocytes and placental development is beginning to be delineated. During pregnancy a specialised population of maternal leukocytes infiltrates the implantation site. These leukocytes are thought to sustain the delicate balance between protecting the developing embryo/fetus and tolerating its hemiallogeneic tissues. A network of chemokine expression by both fetal and maternal components in the pregnant uterus functions in establishing this leukocyte population. Intriguingly, experiments investigating immune cell recruitment revealed the additional possibility that chemokines influence aspects of placental development. Specifically, cytotrophoblasts, the effector cells of the placenta, express chemokine receptors that can bind ligands found at key locations, implicating chemokines as regulators of cytotrophoblast differentiation and migration. Thus, as in other systems, at the fetal–maternal interface chemokines might regulate multiple functions.
Looking Backward, Looking Forward: MLA Members Speak
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- Journal:
- PMLA / Publications of the Modern Language Association of America / Volume 115 / Issue 7 / December 2000
- Published online by Cambridge University Press:
- 23 October 2020, pp. 1986-2078
- Print publication:
- December 2000
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